[ 37.807841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 37.808488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.808488][ T254] dst_init+0x84/0x4a0 [ 37.808488][ T254] dst_alloc+0x97/0x150 [ 37.808488][ T254] ip6_dst_alloc+0x23/0x90 [ 37.808488][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 37.808488][ T254] ip6_pol_route+0x56f/0x840 [ 37.808488][ T254] fib6_rule_lookup+0x334/0x630 [ 37.808488][ T254] ip6_route_output_flags+0x259/0x480 [ 37.808488][ T254] inet6_rtm_getroute+0x980/0xf70 [ 37.808488][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 37.808488][ T254] netlink_rcv_skb+0x130/0x360 [ 37.808488][ T254] netlink_unicast+0x449/0x710 [ 37.808488][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.808488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.808488][ T254] ___sys_sendmsg+0xee/0x170 [ 37.808488][ T254] __sys_sendmsg+0xcd/0x170 [ 37.808488][ T254] do_syscall_64+0xc6/0x1e0 [ 37.808488][ T254] [ 37.812280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.812280][ T254] netdev_get_by_index+0x5e/0x80 [ 37.812280][ T254] fib6_nh_init+0x3d8/0x1580 [ 37.812280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 37.812280][ T254] addrconf_f6i_alloc+0x265/0x560 [ 37.812280][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 37.812280][ T254] addrconf_join_anycast+0x1c0/0x220 [ 37.812280][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 37.812280][ T254] addrconf_dad_completed+0x12b/0xe20 [ 37.812280][ T254] addrconf_dad_begin+0x310/0x670 [ 37.812280][ T254] addrconf_dad_work+0x10b/0xab0 [ 37.812280][ T254] process_one_work+0x84d/0x18a0 [ 37.812280][ T254] worker_thread+0x587/0xd30 [ 37.812280][ T254] kthread+0x28a/0x350 [ 37.812280][ T254] ret_from_fork+0x31/0x70 [ 37.812280][ T254] ret_from_fork_asm+0x1a/0x30 [ 37.812280][ T254] [ 37.815810][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.815810][ T254] netdev_get_by_index+0x5e/0x80 [ 37.815810][ T254] fib6_nh_init+0x3d8/0x1580 [ 37.815810][ T254] ip6_route_info_create+0xf18/0x17d0 [ 37.815810][ T254] ip6_route_add+0x1c/0x140 [ 37.815810][ T254] addrconf_prefix_route+0x2a6/0x430 [ 37.815810][ T254] inet6_addr_add+0x4f8/0xa40 [ 37.815810][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 37.815810][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.815810][ T254] netlink_rcv_skb+0x130/0x360 [ 37.815810][ T254] netlink_unicast+0x449/0x710 [ 37.815810][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.815810][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.815810][ T254] ___sys_sendmsg+0xee/0x170 [ 37.815810][ T254] __sys_sendmsg+0xcd/0x170 [ 37.815810][ T254] do_syscall_64+0xc6/0x1e0 [ 37.815810][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.815810][ T254] [ 37.819501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.819501][ T254] netdev_get_by_index+0x5e/0x80 [ 37.819501][ T254] fib6_nh_init+0x3d8/0x1580 [ 37.819501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 37.819501][ T254] addrconf_f6i_alloc+0x315/0x560 [ 37.819501][ T254] ipv6_add_addr+0x411/0x2000 [ 37.819501][ T254] inet6_addr_add+0x30e/0xa40 [ 37.819501][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 37.819501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.819501][ T254] netlink_rcv_skb+0x130/0x360 [ 37.819501][ T254] netlink_unicast+0x449/0x710 [ 37.819501][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.819501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.819501][ T254] ___sys_sendmsg+0xee/0x170 [ 37.819501][ T254] __sys_sendmsg+0xcd/0x170 [ 37.819501][ T254] do_syscall_64+0xc6/0x1e0 [ 37.819501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.819501][ T254] [ 37.823162][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.823162][ T254] netdev_get_by_index+0x5e/0x80 [ 37.823162][ T254] fib6_nh_init+0x3d8/0x1580 [ 37.823162][ T254] ip6_route_info_create+0xf18/0x17d0 [ 37.823162][ T254] ip6_route_add+0x1c/0x140 [ 37.823162][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 37.823162][ T254] addrconf_add_dev+0xe2/0x170 [ 37.823162][ T254] inet6_addr_add+0x12f/0xa40 [ 37.823162][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 37.823162][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.823162][ T254] netlink_rcv_skb+0x130/0x360 [ 37.823162][ T254] netlink_unicast+0x449/0x710 [ 37.823162][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.823162][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.823162][ T254] ___sys_sendmsg+0xee/0x170 [ 37.823162][ T254] __sys_sendmsg+0xcd/0x170 [ 37.823162][ T254] do_syscall_64+0xc6/0x1e0 [ 37.823162][ T254] [ 37.826763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.826763][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 37.826763][ T254] ipv6_find_idev+0x102/0x170 [ 37.826763][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 37.826763][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.826763][ T254] netlink_rcv_skb+0x130/0x360 [ 37.826763][ T254] netlink_unicast+0x449/0x710 [ 37.826763][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.826763][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.826763][ T254] ___sys_sendmsg+0xee/0x170 [ 37.826763][ T254] __sys_sendmsg+0xcd/0x170 [ 37.826763][ T254] do_syscall_64+0xc6/0x1e0 [ 37.826763][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.826763][ T254] [ 37.829583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 37.829583][ T254] neigh_parms_alloc+0x1e5/0x510 [ 37.829583][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 37.829583][ T254] ipv6_find_idev+0x102/0x170 [ 37.829583][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 37.829583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 37.829583][ T254] netlink_rcv_skb+0x130/0x360 [ 37.829583][ T254] netlink_unicast+0x449/0x710 [ 37.829583][ T254] netlink_sendmsg+0x723/0xbe0 [ 37.829583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 37.829583][ T254] ___sys_sendmsg+0xee/0x170 [ 37.829583][ T254] __sys_sendmsg+0xcd/0x170 [ 37.829583][ T254] do_syscall_64+0xc6/0x1e0 [ 37.829583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 37.829583][ T254] [ 48.071847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 48.072298][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.072298][ T254] dst_init+0x84/0x4a0 [ 48.072298][ T254] dst_alloc+0x97/0x150 [ 48.072298][ T254] ip6_dst_alloc+0x23/0x90 [ 48.072298][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 48.072298][ T254] ip6_pol_route+0x56f/0x840 [ 48.072298][ T254] fib6_rule_lookup+0x334/0x630 [ 48.072298][ T254] ip6_route_output_flags+0x259/0x480 [ 48.072298][ T254] inet6_rtm_getroute+0x980/0xf70 [ 48.072298][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 48.072298][ T254] netlink_rcv_skb+0x130/0x360 [ 48.072298][ T254] netlink_unicast+0x449/0x710 [ 48.072298][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.072298][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.072298][ T254] ___sys_sendmsg+0xee/0x170 [ 48.072298][ T254] __sys_sendmsg+0xcd/0x170 [ 48.072298][ T254] do_syscall_64+0xc6/0x1e0 [ 48.072298][ T254] [ 48.074690][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.074690][ T254] netdev_get_by_index+0x5e/0x80 [ 48.074690][ T254] fib6_nh_init+0x3d8/0x1580 [ 48.074690][ T254] ip6_route_info_create+0xf18/0x17d0 [ 48.074690][ T254] addrconf_f6i_alloc+0x265/0x560 [ 48.074690][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 48.074690][ T254] addrconf_join_anycast+0x1c0/0x220 [ 48.074690][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 48.074690][ T254] addrconf_dad_completed+0x12b/0xe20 [ 48.074690][ T254] addrconf_dad_begin+0x310/0x670 [ 48.074690][ T254] addrconf_dad_work+0x10b/0xab0 [ 48.074690][ T254] process_one_work+0x84d/0x18a0 [ 48.074690][ T254] worker_thread+0x587/0xd30 [ 48.074690][ T254] kthread+0x28a/0x350 [ 48.074690][ T254] ret_from_fork+0x31/0x70 [ 48.074690][ T254] ret_from_fork_asm+0x1a/0x30 [ 48.074690][ T254] [ 48.077046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.077046][ T254] netdev_get_by_index+0x5e/0x80 [ 48.077046][ T254] fib6_nh_init+0x3d8/0x1580 [ 48.077046][ T254] ip6_route_info_create+0xf18/0x17d0 [ 48.077046][ T254] ip6_route_add+0x1c/0x140 [ 48.077046][ T254] addrconf_prefix_route+0x2a6/0x430 [ 48.077046][ T254] inet6_addr_add+0x4f8/0xa40 [ 48.077046][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 48.077046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.077046][ T254] netlink_rcv_skb+0x130/0x360 [ 48.077046][ T254] netlink_unicast+0x449/0x710 [ 48.077046][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.077046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.077046][ T254] ___sys_sendmsg+0xee/0x170 [ 48.077046][ T254] __sys_sendmsg+0xcd/0x170 [ 48.077046][ T254] do_syscall_64+0xc6/0x1e0 [ 48.077046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.077046][ T254] [ 48.079482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.079482][ T254] netdev_get_by_index+0x5e/0x80 [ 48.079482][ T254] fib6_nh_init+0x3d8/0x1580 [ 48.079482][ T254] ip6_route_info_create+0xf18/0x17d0 [ 48.079482][ T254] addrconf_f6i_alloc+0x315/0x560 [ 48.079482][ T254] ipv6_add_addr+0x411/0x2000 [ 48.079482][ T254] inet6_addr_add+0x30e/0xa40 [ 48.079482][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 48.079482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.079482][ T254] netlink_rcv_skb+0x130/0x360 [ 48.079482][ T254] netlink_unicast+0x449/0x710 [ 48.079482][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.079482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.079482][ T254] ___sys_sendmsg+0xee/0x170 [ 48.079482][ T254] __sys_sendmsg+0xcd/0x170 [ 48.079482][ T254] do_syscall_64+0xc6/0x1e0 [ 48.079482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.079482][ T254] [ 48.081929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.081929][ T254] netdev_get_by_index+0x5e/0x80 [ 48.081929][ T254] fib6_nh_init+0x3d8/0x1580 [ 48.081929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 48.081929][ T254] ip6_route_add+0x1c/0x140 [ 48.081929][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 48.081929][ T254] addrconf_add_dev+0xe2/0x170 [ 48.081929][ T254] inet6_addr_add+0x12f/0xa40 [ 48.081929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 48.081929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.081929][ T254] netlink_rcv_skb+0x130/0x360 [ 48.081929][ T254] netlink_unicast+0x449/0x710 [ 48.081929][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.081929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.081929][ T254] ___sys_sendmsg+0xee/0x170 [ 48.081929][ T254] __sys_sendmsg+0xcd/0x170 [ 48.081929][ T254] do_syscall_64+0xc6/0x1e0 [ 48.081929][ T254] [ 48.084319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.084319][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 48.084319][ T254] ipv6_find_idev+0x102/0x170 [ 48.084319][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 48.084319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.084319][ T254] netlink_rcv_skb+0x130/0x360 [ 48.084319][ T254] netlink_unicast+0x449/0x710 [ 48.084319][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.084319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.084319][ T254] ___sys_sendmsg+0xee/0x170 [ 48.084319][ T254] __sys_sendmsg+0xcd/0x170 [ 48.084319][ T254] do_syscall_64+0xc6/0x1e0 [ 48.084319][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.084319][ T254] [ 48.086166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 48.086166][ T254] neigh_parms_alloc+0x1e5/0x510 [ 48.086166][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 48.086166][ T254] ipv6_find_idev+0x102/0x170 [ 48.086166][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 48.086166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.086166][ T254] netlink_rcv_skb+0x130/0x360 [ 48.086166][ T254] netlink_unicast+0x449/0x710 [ 48.086166][ T254] netlink_sendmsg+0x723/0xbe0 [ 48.086166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 48.086166][ T254] ___sys_sendmsg+0xee/0x170 [ 48.086166][ T254] __sys_sendmsg+0xcd/0x170 [ 48.086166][ T254] do_syscall_64+0xc6/0x1e0 [ 48.086166][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.086166][ T254] [ 58.151833][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 58.152253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.152253][ T254] dst_init+0x84/0x4a0 [ 58.152253][ T254] dst_alloc+0x97/0x150 [ 58.152253][ T254] ip6_dst_alloc+0x23/0x90 [ 58.152253][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 58.152253][ T254] ip6_pol_route+0x56f/0x840 [ 58.152253][ T254] fib6_rule_lookup+0x334/0x630 [ 58.152253][ T254] ip6_route_output_flags+0x259/0x480 [ 58.152253][ T254] inet6_rtm_getroute+0x980/0xf70 [ 58.152253][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 58.152253][ T254] netlink_rcv_skb+0x130/0x360 [ 58.152253][ T254] netlink_unicast+0x449/0x710 [ 58.152253][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.152253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.152253][ T254] ___sys_sendmsg+0xee/0x170 [ 58.152253][ T254] __sys_sendmsg+0xcd/0x170 [ 58.152253][ T254] do_syscall_64+0xc6/0x1e0 [ 58.152253][ T254] [ 58.154549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.154549][ T254] netdev_get_by_index+0x5e/0x80 [ 58.154549][ T254] fib6_nh_init+0x3d8/0x1580 [ 58.154549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 58.154549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 58.154549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 58.154549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 58.154549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 58.154549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 58.154549][ T254] addrconf_dad_begin+0x310/0x670 [ 58.154549][ T254] addrconf_dad_work+0x10b/0xab0 [ 58.154549][ T254] process_one_work+0x84d/0x18a0 [ 58.154549][ T254] worker_thread+0x587/0xd30 [ 58.154549][ T254] kthread+0x28a/0x350 [ 58.154549][ T254] ret_from_fork+0x31/0x70 [ 58.154549][ T254] ret_from_fork_asm+0x1a/0x30 [ 58.154549][ T254] [ 58.156745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.156745][ T254] netdev_get_by_index+0x5e/0x80 [ 58.156745][ T254] fib6_nh_init+0x3d8/0x1580 [ 58.156745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 58.156745][ T254] ip6_route_add+0x1c/0x140 [ 58.156745][ T254] addrconf_prefix_route+0x2a6/0x430 [ 58.156745][ T254] inet6_addr_add+0x4f8/0xa40 [ 58.156745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 58.156745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.156745][ T254] netlink_rcv_skb+0x130/0x360 [ 58.156745][ T254] netlink_unicast+0x449/0x710 [ 58.156745][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.156745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.156745][ T254] ___sys_sendmsg+0xee/0x170 [ 58.156745][ T254] __sys_sendmsg+0xcd/0x170 [ 58.156745][ T254] do_syscall_64+0xc6/0x1e0 [ 58.156745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.156745][ T254] [ 58.159003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.159003][ T254] netdev_get_by_index+0x5e/0x80 [ 58.159003][ T254] fib6_nh_init+0x3d8/0x1580 [ 58.159003][ T254] ip6_route_info_create+0xf18/0x17d0 [ 58.159003][ T254] addrconf_f6i_alloc+0x315/0x560 [ 58.159003][ T254] ipv6_add_addr+0x411/0x2000 [ 58.159003][ T254] inet6_addr_add+0x30e/0xa40 [ 58.159003][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 58.159003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.159003][ T254] netlink_rcv_skb+0x130/0x360 [ 58.159003][ T254] netlink_unicast+0x449/0x710 [ 58.159003][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.159003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.159003][ T254] ___sys_sendmsg+0xee/0x170 [ 58.159003][ T254] __sys_sendmsg+0xcd/0x170 [ 58.159003][ T254] do_syscall_64+0xc6/0x1e0 [ 58.159003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.159003][ T254] [ 58.161250][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.161250][ T254] netdev_get_by_index+0x5e/0x80 [ 58.161250][ T254] fib6_nh_init+0x3d8/0x1580 [ 58.161250][ T254] ip6_route_info_create+0xf18/0x17d0 [ 58.161250][ T254] ip6_route_add+0x1c/0x140 [ 58.161250][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 58.161250][ T254] addrconf_add_dev+0xe2/0x170 [ 58.161250][ T254] inet6_addr_add+0x12f/0xa40 [ 58.161250][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 58.161250][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.161250][ T254] netlink_rcv_skb+0x130/0x360 [ 58.161250][ T254] netlink_unicast+0x449/0x710 [ 58.161250][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.161250][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.161250][ T254] ___sys_sendmsg+0xee/0x170 [ 58.161250][ T254] __sys_sendmsg+0xcd/0x170 [ 58.161250][ T254] do_syscall_64+0xc6/0x1e0 [ 58.161250][ T254] [ 58.163458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.163458][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 58.163458][ T254] ipv6_find_idev+0x102/0x170 [ 58.163458][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 58.163458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.163458][ T254] netlink_rcv_skb+0x130/0x360 [ 58.163458][ T254] netlink_unicast+0x449/0x710 [ 58.163458][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.163458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.163458][ T254] ___sys_sendmsg+0xee/0x170 [ 58.163458][ T254] __sys_sendmsg+0xcd/0x170 [ 58.163458][ T254] do_syscall_64+0xc6/0x1e0 [ 58.163458][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.163458][ T254] [ 58.165287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 58.165287][ T254] neigh_parms_alloc+0x1e5/0x510 [ 58.165287][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 58.165287][ T254] ipv6_find_idev+0x102/0x170 [ 58.165287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 58.165287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 58.165287][ T254] netlink_rcv_skb+0x130/0x360 [ 58.165287][ T254] netlink_unicast+0x449/0x710 [ 58.165287][ T254] netlink_sendmsg+0x723/0xbe0 [ 58.165287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 58.165287][ T254] ___sys_sendmsg+0xee/0x170 [ 58.165287][ T254] __sys_sendmsg+0xcd/0x170 [ 58.165287][ T254] do_syscall_64+0xc6/0x1e0 [ 58.165287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 58.165287][ T254] [ 68.359856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 68.360283][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.360283][ T254] dst_init+0x84/0x4a0 [ 68.360283][ T254] dst_alloc+0x97/0x150 [ 68.360283][ T254] ip6_dst_alloc+0x23/0x90 [ 68.360283][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 68.360283][ T254] ip6_pol_route+0x56f/0x840 [ 68.360283][ T254] fib6_rule_lookup+0x334/0x630 [ 68.360283][ T254] ip6_route_output_flags+0x259/0x480 [ 68.360283][ T254] inet6_rtm_getroute+0x980/0xf70 [ 68.360283][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 68.360283][ T254] netlink_rcv_skb+0x130/0x360 [ 68.360283][ T254] netlink_unicast+0x449/0x710 [ 68.360283][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.360283][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.360283][ T254] ___sys_sendmsg+0xee/0x170 [ 68.360283][ T254] __sys_sendmsg+0xcd/0x170 [ 68.360283][ T254] do_syscall_64+0xc6/0x1e0 [ 68.360283][ T254] [ 68.362509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.362509][ T254] netdev_get_by_index+0x5e/0x80 [ 68.362509][ T254] fib6_nh_init+0x3d8/0x1580 [ 68.362509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 68.362509][ T254] addrconf_f6i_alloc+0x265/0x560 [ 68.362509][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 68.362509][ T254] addrconf_join_anycast+0x1c0/0x220 [ 68.362509][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 68.362509][ T254] addrconf_dad_completed+0x12b/0xe20 [ 68.362509][ T254] addrconf_dad_begin+0x310/0x670 [ 68.362509][ T254] addrconf_dad_work+0x10b/0xab0 [ 68.362509][ T254] process_one_work+0x84d/0x18a0 [ 68.362509][ T254] worker_thread+0x587/0xd30 [ 68.362509][ T254] kthread+0x28a/0x350 [ 68.362509][ T254] ret_from_fork+0x31/0x70 [ 68.362509][ T254] ret_from_fork_asm+0x1a/0x30 [ 68.362509][ T254] [ 68.364709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.364709][ T254] netdev_get_by_index+0x5e/0x80 [ 68.364709][ T254] fib6_nh_init+0x3d8/0x1580 [ 68.364709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 68.364709][ T254] ip6_route_add+0x1c/0x140 [ 68.364709][ T254] addrconf_prefix_route+0x2a6/0x430 [ 68.364709][ T254] inet6_addr_add+0x4f8/0xa40 [ 68.364709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 68.364709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.364709][ T254] netlink_rcv_skb+0x130/0x360 [ 68.364709][ T254] netlink_unicast+0x449/0x710 [ 68.364709][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.364709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.364709][ T254] ___sys_sendmsg+0xee/0x170 [ 68.364709][ T254] __sys_sendmsg+0xcd/0x170 [ 68.364709][ T254] do_syscall_64+0xc6/0x1e0 [ 68.364709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.364709][ T254] [ 68.367098][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.367098][ T254] netdev_get_by_index+0x5e/0x80 [ 68.367098][ T254] fib6_nh_init+0x3d8/0x1580 [ 68.367098][ T254] ip6_route_info_create+0xf18/0x17d0 [ 68.367098][ T254] addrconf_f6i_alloc+0x315/0x560 [ 68.367098][ T254] ipv6_add_addr+0x411/0x2000 [ 68.367098][ T254] inet6_addr_add+0x30e/0xa40 [ 68.367098][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 68.367098][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.367098][ T254] netlink_rcv_skb+0x130/0x360 [ 68.367098][ T254] netlink_unicast+0x449/0x710 [ 68.367098][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.367098][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.367098][ T254] ___sys_sendmsg+0xee/0x170 [ 68.367098][ T254] __sys_sendmsg+0xcd/0x170 [ 68.367098][ T254] do_syscall_64+0xc6/0x1e0 [ 68.367098][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.367098][ T254] [ 68.369356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.369356][ T254] netdev_get_by_index+0x5e/0x80 [ 68.369356][ T254] fib6_nh_init+0x3d8/0x1580 [ 68.369356][ T254] ip6_route_info_create+0xf18/0x17d0 [ 68.369356][ T254] ip6_route_add+0x1c/0x140 [ 68.369356][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 68.369356][ T254] addrconf_add_dev+0xe2/0x170 [ 68.369356][ T254] inet6_addr_add+0x12f/0xa40 [ 68.369356][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 68.369356][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.369356][ T254] netlink_rcv_skb+0x130/0x360 [ 68.369356][ T254] netlink_unicast+0x449/0x710 [ 68.369356][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.369356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.369356][ T254] ___sys_sendmsg+0xee/0x170 [ 68.369356][ T254] __sys_sendmsg+0xcd/0x170 [ 68.369356][ T254] do_syscall_64+0xc6/0x1e0 [ 68.369356][ T254] [ 68.371556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.371556][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 68.371556][ T254] ipv6_find_idev+0x102/0x170 [ 68.371556][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 68.371556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.371556][ T254] netlink_rcv_skb+0x130/0x360 [ 68.371556][ T254] netlink_unicast+0x449/0x710 [ 68.371556][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.371556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.371556][ T254] ___sys_sendmsg+0xee/0x170 [ 68.371556][ T254] __sys_sendmsg+0xcd/0x170 [ 68.371556][ T254] do_syscall_64+0xc6/0x1e0 [ 68.371556][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.371556][ T254] [ 68.373291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 68.373291][ T254] neigh_parms_alloc+0x1e5/0x510 [ 68.373291][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 68.373291][ T254] ipv6_find_idev+0x102/0x170 [ 68.373291][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 68.373291][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 68.373291][ T254] netlink_rcv_skb+0x130/0x360 [ 68.373291][ T254] netlink_unicast+0x449/0x710 [ 68.373291][ T254] netlink_sendmsg+0x723/0xbe0 [ 68.373291][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 68.373291][ T254] ___sys_sendmsg+0xee/0x170 [ 68.373291][ T254] __sys_sendmsg+0xcd/0x170 [ 68.373291][ T254] do_syscall_64+0xc6/0x1e0 [ 68.373291][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 68.373291][ T254] [ 78.503824][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 78.504241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.504241][ T254] dst_init+0x84/0x4a0 [ 78.504241][ T254] dst_alloc+0x97/0x150 [ 78.504241][ T254] ip6_dst_alloc+0x23/0x90 [ 78.504241][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 78.504241][ T254] ip6_pol_route+0x56f/0x840 [ 78.504241][ T254] fib6_rule_lookup+0x334/0x630 [ 78.504241][ T254] ip6_route_output_flags+0x259/0x480 [ 78.504241][ T254] inet6_rtm_getroute+0x980/0xf70 [ 78.504241][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 78.504241][ T254] netlink_rcv_skb+0x130/0x360 [ 78.504241][ T254] netlink_unicast+0x449/0x710 [ 78.504241][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.504241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.504241][ T254] ___sys_sendmsg+0xee/0x170 [ 78.504241][ T254] __sys_sendmsg+0xcd/0x170 [ 78.504241][ T254] do_syscall_64+0xc6/0x1e0 [ 78.504241][ T254] [ 78.506467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.506467][ T254] netdev_get_by_index+0x5e/0x80 [ 78.506467][ T254] fib6_nh_init+0x3d8/0x1580 [ 78.506467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 78.506467][ T254] addrconf_f6i_alloc+0x265/0x560 [ 78.506467][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 78.506467][ T254] addrconf_join_anycast+0x1c0/0x220 [ 78.506467][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 78.506467][ T254] addrconf_dad_completed+0x12b/0xe20 [ 78.506467][ T254] addrconf_dad_begin+0x310/0x670 [ 78.506467][ T254] addrconf_dad_work+0x10b/0xab0 [ 78.506467][ T254] process_one_work+0x84d/0x18a0 [ 78.506467][ T254] worker_thread+0x587/0xd30 [ 78.506467][ T254] kthread+0x28a/0x350 [ 78.506467][ T254] ret_from_fork+0x31/0x70 [ 78.506467][ T254] ret_from_fork_asm+0x1a/0x30 [ 78.506467][ T254] [ 78.508613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.508613][ T254] netdev_get_by_index+0x5e/0x80 [ 78.508613][ T254] fib6_nh_init+0x3d8/0x1580 [ 78.508613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 78.508613][ T254] ip6_route_add+0x1c/0x140 [ 78.508613][ T254] addrconf_prefix_route+0x2a6/0x430 [ 78.508613][ T254] inet6_addr_add+0x4f8/0xa40 [ 78.508613][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 78.508613][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 78.508613][ T254] netlink_rcv_skb+0x130/0x360 [ 78.508613][ T254] netlink_unicast+0x449/0x710 [ 78.508613][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.508613][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.508613][ T254] ___sys_sendmsg+0xee/0x170 [ 78.508613][ T254] __sys_sendmsg+0xcd/0x170 [ 78.508613][ T254] do_syscall_64+0xc6/0x1e0 [ 78.508613][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 78.508613][ T254] [ 78.510871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.510871][ T254] netdev_get_by_index+0x5e/0x80 [ 78.510871][ T254] fib6_nh_init+0x3d8/0x1580 [ 78.510871][ T254] ip6_route_info_create+0xf18/0x17d0 [ 78.510871][ T254] addrconf_f6i_alloc+0x315/0x560 [ 78.510871][ T254] ipv6_add_addr+0x411/0x2000 [ 78.510871][ T254] inet6_addr_add+0x30e/0xa40 [ 78.510871][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 78.510871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 78.510871][ T254] netlink_rcv_skb+0x130/0x360 [ 78.510871][ T254] netlink_unicast+0x449/0x710 [ 78.510871][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.510871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.510871][ T254] ___sys_sendmsg+0xee/0x170 [ 78.510871][ T254] __sys_sendmsg+0xcd/0x170 [ 78.510871][ T254] do_syscall_64+0xc6/0x1e0 [ 78.510871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 78.510871][ T254] [ 78.513132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.513132][ T254] netdev_get_by_index+0x5e/0x80 [ 78.513132][ T254] fib6_nh_init+0x3d8/0x1580 [ 78.513132][ T254] ip6_route_info_create+0xf18/0x17d0 [ 78.513132][ T254] ip6_route_add+0x1c/0x140 [ 78.513132][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 78.513132][ T254] addrconf_add_dev+0xe2/0x170 [ 78.513132][ T254] inet6_addr_add+0x12f/0xa40 [ 78.513132][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 78.513132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 78.513132][ T254] netlink_rcv_skb+0x130/0x360 [ 78.513132][ T254] netlink_unicast+0x449/0x710 [ 78.513132][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.513132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.513132][ T254] ___sys_sendmsg+0xee/0x170 [ 78.513132][ T254] __sys_sendmsg+0xcd/0x170 [ 78.513132][ T254] do_syscall_64+0xc6/0x1e0 [ 78.513132][ T254] [ 78.515353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.515353][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 78.515353][ T254] ipv6_find_idev+0x102/0x170 [ 78.515353][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 78.515353][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 78.515353][ T254] netlink_rcv_skb+0x130/0x360 [ 78.515353][ T254] netlink_unicast+0x449/0x710 [ 78.515353][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.515353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.515353][ T254] ___sys_sendmsg+0xee/0x170 [ 78.515353][ T254] __sys_sendmsg+0xcd/0x170 [ 78.515353][ T254] do_syscall_64+0xc6/0x1e0 [ 78.515353][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 78.515353][ T254] [ 78.517092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 78.517092][ T254] neigh_parms_alloc+0x1e5/0x510 [ 78.517092][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 78.517092][ T254] ipv6_find_idev+0x102/0x170 [ 78.517092][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 78.517092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 78.517092][ T254] netlink_rcv_skb+0x130/0x360 [ 78.517092][ T254] netlink_unicast+0x449/0x710 [ 78.517092][ T254] netlink_sendmsg+0x723/0xbe0 [ 78.517092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 78.517092][ T254] ___sys_sendmsg+0xee/0x170 [ 78.517092][ T254] __sys_sendmsg+0xcd/0x170 [ 78.517092][ T254] do_syscall_64+0xc6/0x1e0 [ 78.517092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 78.517092][ T254] [ 88.767830][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 88.768248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.768248][ T254] dst_init+0x84/0x4a0 [ 88.768248][ T254] dst_alloc+0x97/0x150 [ 88.768248][ T254] ip6_dst_alloc+0x23/0x90 [ 88.768248][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 88.768248][ T254] ip6_pol_route+0x56f/0x840 [ 88.768248][ T254] fib6_rule_lookup+0x334/0x630 [ 88.768248][ T254] ip6_route_output_flags+0x259/0x480 [ 88.768248][ T254] inet6_rtm_getroute+0x980/0xf70 [ 88.768248][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 88.768248][ T254] netlink_rcv_skb+0x130/0x360 [ 88.768248][ T254] netlink_unicast+0x449/0x710 [ 88.768248][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.768248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.768248][ T254] ___sys_sendmsg+0xee/0x170 [ 88.768248][ T254] __sys_sendmsg+0xcd/0x170 [ 88.768248][ T254] do_syscall_64+0xc6/0x1e0 [ 88.768248][ T254] [ 88.770538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.770538][ T254] netdev_get_by_index+0x5e/0x80 [ 88.770538][ T254] fib6_nh_init+0x3d8/0x1580 [ 88.770538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 88.770538][ T254] addrconf_f6i_alloc+0x265/0x560 [ 88.770538][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 88.770538][ T254] addrconf_join_anycast+0x1c0/0x220 [ 88.770538][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 88.770538][ T254] addrconf_dad_completed+0x12b/0xe20 [ 88.770538][ T254] addrconf_dad_begin+0x310/0x670 [ 88.770538][ T254] addrconf_dad_work+0x10b/0xab0 [ 88.770538][ T254] process_one_work+0x84d/0x18a0 [ 88.770538][ T254] worker_thread+0x587/0xd30 [ 88.770538][ T254] kthread+0x28a/0x350 [ 88.770538][ T254] ret_from_fork+0x31/0x70 [ 88.770538][ T254] ret_from_fork_asm+0x1a/0x30 [ 88.770538][ T254] [ 88.772699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.772699][ T254] netdev_get_by_index+0x5e/0x80 [ 88.772699][ T254] fib6_nh_init+0x3d8/0x1580 [ 88.772699][ T254] ip6_route_info_create+0xf18/0x17d0 [ 88.772699][ T254] ip6_route_add+0x1c/0x140 [ 88.772699][ T254] addrconf_prefix_route+0x2a6/0x430 [ 88.772699][ T254] inet6_addr_add+0x4f8/0xa40 [ 88.772699][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 88.772699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 88.772699][ T254] netlink_rcv_skb+0x130/0x360 [ 88.772699][ T254] netlink_unicast+0x449/0x710 [ 88.772699][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.772699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.772699][ T254] ___sys_sendmsg+0xee/0x170 [ 88.772699][ T254] __sys_sendmsg+0xcd/0x170 [ 88.772699][ T254] do_syscall_64+0xc6/0x1e0 [ 88.772699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 88.772699][ T254] [ 88.774955][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.774955][ T254] netdev_get_by_index+0x5e/0x80 [ 88.774955][ T254] fib6_nh_init+0x3d8/0x1580 [ 88.774955][ T254] ip6_route_info_create+0xf18/0x17d0 [ 88.774955][ T254] addrconf_f6i_alloc+0x315/0x560 [ 88.774955][ T254] ipv6_add_addr+0x411/0x2000 [ 88.774955][ T254] inet6_addr_add+0x30e/0xa40 [ 88.774955][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 88.774955][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 88.774955][ T254] netlink_rcv_skb+0x130/0x360 [ 88.774955][ T254] netlink_unicast+0x449/0x710 [ 88.774955][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.774955][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.774955][ T254] ___sys_sendmsg+0xee/0x170 [ 88.774955][ T254] __sys_sendmsg+0xcd/0x170 [ 88.774955][ T254] do_syscall_64+0xc6/0x1e0 [ 88.774955][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 88.774955][ T254] [ 88.777220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.777220][ T254] netdev_get_by_index+0x5e/0x80 [ 88.777220][ T254] fib6_nh_init+0x3d8/0x1580 [ 88.777220][ T254] ip6_route_info_create+0xf18/0x17d0 [ 88.777220][ T254] ip6_route_add+0x1c/0x140 [ 88.777220][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 88.777220][ T254] addrconf_add_dev+0xe2/0x170 [ 88.777220][ T254] inet6_addr_add+0x12f/0xa40 [ 88.777220][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 88.777220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 88.777220][ T254] netlink_rcv_skb+0x130/0x360 [ 88.777220][ T254] netlink_unicast+0x449/0x710 [ 88.777220][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.777220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.777220][ T254] ___sys_sendmsg+0xee/0x170 [ 88.777220][ T254] __sys_sendmsg+0xcd/0x170 [ 88.777220][ T254] do_syscall_64+0xc6/0x1e0 [ 88.777220][ T254] [ 88.779418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.779418][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 88.779418][ T254] ipv6_find_idev+0x102/0x170 [ 88.779418][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 88.779418][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 88.779418][ T254] netlink_rcv_skb+0x130/0x360 [ 88.779418][ T254] netlink_unicast+0x449/0x710 [ 88.779418][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.779418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.779418][ T254] ___sys_sendmsg+0xee/0x170 [ 88.779418][ T254] __sys_sendmsg+0xcd/0x170 [ 88.779418][ T254] do_syscall_64+0xc6/0x1e0 [ 88.779418][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 88.779418][ T254] [ 88.781139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 88.781139][ T254] neigh_parms_alloc+0x1e5/0x510 [ 88.781139][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 88.781139][ T254] ipv6_find_idev+0x102/0x170 [ 88.781139][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 88.781139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 88.781139][ T254] netlink_rcv_skb+0x130/0x360 [ 88.781139][ T254] netlink_unicast+0x449/0x710 [ 88.781139][ T254] netlink_sendmsg+0x723/0xbe0 [ 88.781139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 88.781139][ T254] ___sys_sendmsg+0xee/0x170 [ 88.781139][ T254] __sys_sendmsg+0xcd/0x170 [ 88.781139][ T254] do_syscall_64+0xc6/0x1e0 [ 88.781139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 88.781139][ T254] [ 98.783823][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 98.784279][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.784279][ T254] dst_init+0x84/0x4a0 [ 98.784279][ T254] dst_alloc+0x97/0x150 [ 98.784279][ T254] ip6_dst_alloc+0x23/0x90 [ 98.784279][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 98.784279][ T254] ip6_pol_route+0x56f/0x840 [ 98.784279][ T254] fib6_rule_lookup+0x334/0x630 [ 98.784279][ T254] ip6_route_output_flags+0x259/0x480 [ 98.784279][ T254] inet6_rtm_getroute+0x980/0xf70 [ 98.784279][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 98.784279][ T254] netlink_rcv_skb+0x130/0x360 [ 98.784279][ T254] netlink_unicast+0x449/0x710 [ 98.784279][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.784279][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.784279][ T254] ___sys_sendmsg+0xee/0x170 [ 98.784279][ T254] __sys_sendmsg+0xcd/0x170 [ 98.784279][ T254] do_syscall_64+0xc6/0x1e0 [ 98.784279][ T254] [ 98.786729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.786729][ T254] netdev_get_by_index+0x5e/0x80 [ 98.786729][ T254] fib6_nh_init+0x3d8/0x1580 [ 98.786729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 98.786729][ T254] addrconf_f6i_alloc+0x265/0x560 [ 98.786729][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 98.786729][ T254] addrconf_join_anycast+0x1c0/0x220 [ 98.786729][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 98.786729][ T254] addrconf_dad_completed+0x12b/0xe20 [ 98.786729][ T254] addrconf_dad_begin+0x310/0x670 [ 98.786729][ T254] addrconf_dad_work+0x10b/0xab0 [ 98.786729][ T254] process_one_work+0x84d/0x18a0 [ 98.786729][ T254] worker_thread+0x587/0xd30 [ 98.786729][ T254] kthread+0x28a/0x350 [ 98.786729][ T254] ret_from_fork+0x31/0x70 [ 98.786729][ T254] ret_from_fork_asm+0x1a/0x30 [ 98.786729][ T254] [ 98.789073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.789073][ T254] netdev_get_by_index+0x5e/0x80 [ 98.789073][ T254] fib6_nh_init+0x3d8/0x1580 [ 98.789073][ T254] ip6_route_info_create+0xf18/0x17d0 [ 98.789073][ T254] ip6_route_add+0x1c/0x140 [ 98.789073][ T254] addrconf_prefix_route+0x2a6/0x430 [ 98.789073][ T254] inet6_addr_add+0x4f8/0xa40 [ 98.789073][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 98.789073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 98.789073][ T254] netlink_rcv_skb+0x130/0x360 [ 98.789073][ T254] netlink_unicast+0x449/0x710 [ 98.789073][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.789073][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.789073][ T254] ___sys_sendmsg+0xee/0x170 [ 98.789073][ T254] __sys_sendmsg+0xcd/0x170 [ 98.789073][ T254] do_syscall_64+0xc6/0x1e0 [ 98.789073][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 98.789073][ T254] [ 98.791515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.791515][ T254] netdev_get_by_index+0x5e/0x80 [ 98.791515][ T254] fib6_nh_init+0x3d8/0x1580 [ 98.791515][ T254] ip6_route_info_create+0xf18/0x17d0 [ 98.791515][ T254] addrconf_f6i_alloc+0x315/0x560 [ 98.791515][ T254] ipv6_add_addr+0x411/0x2000 [ 98.791515][ T254] inet6_addr_add+0x30e/0xa40 [ 98.791515][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 98.791515][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 98.791515][ T254] netlink_rcv_skb+0x130/0x360 [ 98.791515][ T254] netlink_unicast+0x449/0x710 [ 98.791515][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.791515][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.791515][ T254] ___sys_sendmsg+0xee/0x170 [ 98.791515][ T254] __sys_sendmsg+0xcd/0x170 [ 98.791515][ T254] do_syscall_64+0xc6/0x1e0 [ 98.791515][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 98.791515][ T254] [ 98.793970][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.793970][ T254] netdev_get_by_index+0x5e/0x80 [ 98.793970][ T254] fib6_nh_init+0x3d8/0x1580 [ 98.793970][ T254] ip6_route_info_create+0xf18/0x17d0 [ 98.793970][ T254] ip6_route_add+0x1c/0x140 [ 98.793970][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 98.793970][ T254] addrconf_add_dev+0xe2/0x170 [ 98.793970][ T254] inet6_addr_add+0x12f/0xa40 [ 98.793970][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 98.793970][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 98.793970][ T254] netlink_rcv_skb+0x130/0x360 [ 98.793970][ T254] netlink_unicast+0x449/0x710 [ 98.793970][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.793970][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.793970][ T254] ___sys_sendmsg+0xee/0x170 [ 98.793970][ T254] __sys_sendmsg+0xcd/0x170 [ 98.793970][ T254] do_syscall_64+0xc6/0x1e0 [ 98.793970][ T254] [ 98.796401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.796401][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 98.796401][ T254] ipv6_find_idev+0x102/0x170 [ 98.796401][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 98.796401][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 98.796401][ T254] netlink_rcv_skb+0x130/0x360 [ 98.796401][ T254] netlink_unicast+0x449/0x710 [ 98.796401][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.796401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.796401][ T254] ___sys_sendmsg+0xee/0x170 [ 98.796401][ T254] __sys_sendmsg+0xcd/0x170 [ 98.796401][ T254] do_syscall_64+0xc6/0x1e0 [ 98.796401][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 98.796401][ T254] [ 98.798241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 98.798241][ T254] neigh_parms_alloc+0x1e5/0x510 [ 98.798241][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 98.798241][ T254] ipv6_find_idev+0x102/0x170 [ 98.798241][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 98.798241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 98.798241][ T254] netlink_rcv_skb+0x130/0x360 [ 98.798241][ T254] netlink_unicast+0x449/0x710 [ 98.798241][ T254] netlink_sendmsg+0x723/0xbe0 [ 98.798241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 98.798241][ T254] ___sys_sendmsg+0xee/0x170 [ 98.798241][ T254] __sys_sendmsg+0xcd/0x170 [ 98.798241][ T254] do_syscall_64+0xc6/0x1e0 [ 98.798241][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 98.798241][ T254] [ 109.047833][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 109.048289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.048289][ T254] dst_init+0x84/0x4a0 [ 109.048289][ T254] dst_alloc+0x97/0x150 [ 109.048289][ T254] ip6_dst_alloc+0x23/0x90 [ 109.048289][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 109.048289][ T254] ip6_pol_route+0x56f/0x840 [ 109.048289][ T254] fib6_rule_lookup+0x334/0x630 [ 109.048289][ T254] ip6_route_output_flags+0x259/0x480 [ 109.048289][ T254] inet6_rtm_getroute+0x980/0xf70 [ 109.048289][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 109.048289][ T254] netlink_rcv_skb+0x130/0x360 [ 109.048289][ T254] netlink_unicast+0x449/0x710 [ 109.048289][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.048289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.048289][ T254] ___sys_sendmsg+0xee/0x170 [ 109.048289][ T254] __sys_sendmsg+0xcd/0x170 [ 109.048289][ T254] do_syscall_64+0xc6/0x1e0 [ 109.048289][ T254] [ 109.050533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.050533][ T254] netdev_get_by_index+0x5e/0x80 [ 109.050533][ T254] fib6_nh_init+0x3d8/0x1580 [ 109.050533][ T254] ip6_route_info_create+0xf18/0x17d0 [ 109.050533][ T254] addrconf_f6i_alloc+0x265/0x560 [ 109.050533][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 109.050533][ T254] addrconf_join_anycast+0x1c0/0x220 [ 109.050533][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 109.050533][ T254] addrconf_dad_completed+0x12b/0xe20 [ 109.050533][ T254] addrconf_dad_begin+0x310/0x670 [ 109.050533][ T254] addrconf_dad_work+0x10b/0xab0 [ 109.050533][ T254] process_one_work+0x84d/0x18a0 [ 109.050533][ T254] worker_thread+0x587/0xd30 [ 109.050533][ T254] kthread+0x28a/0x350 [ 109.050533][ T254] ret_from_fork+0x31/0x70 [ 109.050533][ T254] ret_from_fork_asm+0x1a/0x30 [ 109.050533][ T254] [ 109.052696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.052696][ T254] netdev_get_by_index+0x5e/0x80 [ 109.052696][ T254] fib6_nh_init+0x3d8/0x1580 [ 109.052696][ T254] ip6_route_info_create+0xf18/0x17d0 [ 109.052696][ T254] ip6_route_add+0x1c/0x140 [ 109.052696][ T254] addrconf_prefix_route+0x2a6/0x430 [ 109.052696][ T254] inet6_addr_add+0x4f8/0xa40 [ 109.052696][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 109.052696][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.052696][ T254] netlink_rcv_skb+0x130/0x360 [ 109.052696][ T254] netlink_unicast+0x449/0x710 [ 109.052696][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.052696][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.052696][ T254] ___sys_sendmsg+0xee/0x170 [ 109.052696][ T254] __sys_sendmsg+0xcd/0x170 [ 109.052696][ T254] do_syscall_64+0xc6/0x1e0 [ 109.052696][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.052696][ T254] [ 109.054966][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.054966][ T254] netdev_get_by_index+0x5e/0x80 [ 109.054966][ T254] fib6_nh_init+0x3d8/0x1580 [ 109.054966][ T254] ip6_route_info_create+0xf18/0x17d0 [ 109.054966][ T254] addrconf_f6i_alloc+0x315/0x560 [ 109.054966][ T254] ipv6_add_addr+0x411/0x2000 [ 109.054966][ T254] inet6_addr_add+0x30e/0xa40 [ 109.054966][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 109.054966][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.054966][ T254] netlink_rcv_skb+0x130/0x360 [ 109.054966][ T254] netlink_unicast+0x449/0x710 [ 109.054966][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.054966][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.054966][ T254] ___sys_sendmsg+0xee/0x170 [ 109.054966][ T254] __sys_sendmsg+0xcd/0x170 [ 109.054966][ T254] do_syscall_64+0xc6/0x1e0 [ 109.054966][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.054966][ T254] [ 109.057249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.057249][ T254] netdev_get_by_index+0x5e/0x80 [ 109.057249][ T254] fib6_nh_init+0x3d8/0x1580 [ 109.057249][ T254] ip6_route_info_create+0xf18/0x17d0 [ 109.057249][ T254] ip6_route_add+0x1c/0x140 [ 109.057249][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 109.057249][ T254] addrconf_add_dev+0xe2/0x170 [ 109.057249][ T254] inet6_addr_add+0x12f/0xa40 [ 109.057249][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 109.057249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.057249][ T254] netlink_rcv_skb+0x130/0x360 [ 109.057249][ T254] netlink_unicast+0x449/0x710 [ 109.057249][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.057249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.057249][ T254] ___sys_sendmsg+0xee/0x170 [ 109.057249][ T254] __sys_sendmsg+0xcd/0x170 [ 109.057249][ T254] do_syscall_64+0xc6/0x1e0 [ 109.057249][ T254] [ 109.059479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.059479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 109.059479][ T254] ipv6_find_idev+0x102/0x170 [ 109.059479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 109.059479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.059479][ T254] netlink_rcv_skb+0x130/0x360 [ 109.059479][ T254] netlink_unicast+0x449/0x710 [ 109.059479][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.059479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.059479][ T254] ___sys_sendmsg+0xee/0x170 [ 109.059479][ T254] __sys_sendmsg+0xcd/0x170 [ 109.059479][ T254] do_syscall_64+0xc6/0x1e0 [ 109.059479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.059479][ T254] [ 109.061225][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 109.061225][ T254] neigh_parms_alloc+0x1e5/0x510 [ 109.061225][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 109.061225][ T254] ipv6_find_idev+0x102/0x170 [ 109.061225][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 109.061225][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 109.061225][ T254] netlink_rcv_skb+0x130/0x360 [ 109.061225][ T254] netlink_unicast+0x449/0x710 [ 109.061225][ T254] netlink_sendmsg+0x723/0xbe0 [ 109.061225][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 109.061225][ T254] ___sys_sendmsg+0xee/0x170 [ 109.061225][ T254] __sys_sendmsg+0xcd/0x170 [ 109.061225][ T254] do_syscall_64+0xc6/0x1e0 [ 109.061225][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 109.061225][ T254] [ 119.071838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 119.072503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.072503][ T254] dst_init+0x84/0x4a0 [ 119.072503][ T254] dst_alloc+0x97/0x150 [ 119.072503][ T254] ip6_dst_alloc+0x23/0x90 [ 119.072503][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 119.072503][ T254] ip6_pol_route+0x56f/0x840 [ 119.072503][ T254] fib6_rule_lookup+0x334/0x630 [ 119.072503][ T254] ip6_route_output_flags+0x259/0x480 [ 119.072503][ T254] inet6_rtm_getroute+0x980/0xf70 [ 119.072503][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 119.072503][ T254] netlink_rcv_skb+0x130/0x360 [ 119.072503][ T254] netlink_unicast+0x449/0x710 [ 119.072503][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.072503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.072503][ T254] ___sys_sendmsg+0xee/0x170 [ 119.072503][ T254] __sys_sendmsg+0xcd/0x170 [ 119.072503][ T254] do_syscall_64+0xc6/0x1e0 [ 119.072503][ T254] [ 119.075856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.075856][ T254] netdev_get_by_index+0x5e/0x80 [ 119.075856][ T254] fib6_nh_init+0x3d8/0x1580 [ 119.075856][ T254] ip6_route_info_create+0xf18/0x17d0 [ 119.075856][ T254] addrconf_f6i_alloc+0x265/0x560 [ 119.075856][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 119.075856][ T254] addrconf_join_anycast+0x1c0/0x220 [ 119.075856][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 119.075856][ T254] addrconf_dad_completed+0x12b/0xe20 [ 119.075856][ T254] addrconf_dad_begin+0x310/0x670 [ 119.075856][ T254] addrconf_dad_work+0x10b/0xab0 [ 119.075856][ T254] process_one_work+0x84d/0x18a0 [ 119.075856][ T254] worker_thread+0x587/0xd30 [ 119.075856][ T254] kthread+0x28a/0x350 [ 119.075856][ T254] ret_from_fork+0x31/0x70 [ 119.075856][ T254] ret_from_fork_asm+0x1a/0x30 [ 119.075856][ T254] [ 119.079135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.079135][ T254] netdev_get_by_index+0x5e/0x80 [ 119.079135][ T254] fib6_nh_init+0x3d8/0x1580 [ 119.079135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 119.079135][ T254] ip6_route_add+0x1c/0x140 [ 119.079135][ T254] addrconf_prefix_route+0x2a6/0x430 [ 119.079135][ T254] inet6_addr_add+0x4f8/0xa40 [ 119.079135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 119.079135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 119.079135][ T254] netlink_rcv_skb+0x130/0x360 [ 119.079135][ T254] netlink_unicast+0x449/0x710 [ 119.079135][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.079135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.079135][ T254] ___sys_sendmsg+0xee/0x170 [ 119.079135][ T254] __sys_sendmsg+0xcd/0x170 [ 119.079135][ T254] do_syscall_64+0xc6/0x1e0 [ 119.079135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 119.079135][ T254] [ 119.082583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.082583][ T254] netdev_get_by_index+0x5e/0x80 [ 119.082583][ T254] fib6_nh_init+0x3d8/0x1580 [ 119.082583][ T254] ip6_route_info_create+0xf18/0x17d0 [ 119.082583][ T254] addrconf_f6i_alloc+0x315/0x560 [ 119.082583][ T254] ipv6_add_addr+0x411/0x2000 [ 119.082583][ T254] inet6_addr_add+0x30e/0xa40 [ 119.082583][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 119.082583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 119.082583][ T254] netlink_rcv_skb+0x130/0x360 [ 119.082583][ T254] netlink_unicast+0x449/0x710 [ 119.082583][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.082583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.082583][ T254] ___sys_sendmsg+0xee/0x170 [ 119.082583][ T254] __sys_sendmsg+0xcd/0x170 [ 119.082583][ T254] do_syscall_64+0xc6/0x1e0 [ 119.082583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 119.082583][ T254] [ 119.085960][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.085960][ T254] netdev_get_by_index+0x5e/0x80 [ 119.085960][ T254] fib6_nh_init+0x3d8/0x1580 [ 119.085960][ T254] ip6_route_info_create+0xf18/0x17d0 [ 119.085960][ T254] ip6_route_add+0x1c/0x140 [ 119.085960][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 119.085960][ T254] addrconf_add_dev+0xe2/0x170 [ 119.085960][ T254] inet6_addr_add+0x12f/0xa40 [ 119.085960][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 119.085960][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 119.085960][ T254] netlink_rcv_skb+0x130/0x360 [ 119.085960][ T254] netlink_unicast+0x449/0x710 [ 119.085960][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.085960][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.085960][ T254] ___sys_sendmsg+0xee/0x170 [ 119.085960][ T254] __sys_sendmsg+0xcd/0x170 [ 119.085960][ T254] do_syscall_64+0xc6/0x1e0 [ 119.085960][ T254] [ 119.089383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.089383][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 119.089383][ T254] ipv6_find_idev+0x102/0x170 [ 119.089383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 119.089383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 119.089383][ T254] netlink_rcv_skb+0x130/0x360 [ 119.089383][ T254] netlink_unicast+0x449/0x710 [ 119.089383][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.089383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.089383][ T254] ___sys_sendmsg+0xee/0x170 [ 119.089383][ T254] __sys_sendmsg+0xcd/0x170 [ 119.089383][ T254] do_syscall_64+0xc6/0x1e0 [ 119.089383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 119.089383][ T254] [ 119.091996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 119.091996][ T254] neigh_parms_alloc+0x1e5/0x510 [ 119.091996][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 119.091996][ T254] ipv6_find_idev+0x102/0x170 [ 119.091996][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 119.091996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 119.091996][ T254] netlink_rcv_skb+0x130/0x360 [ 119.091996][ T254] netlink_unicast+0x449/0x710 [ 119.091996][ T254] netlink_sendmsg+0x723/0xbe0 [ 119.091996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 119.091996][ T254] ___sys_sendmsg+0xee/0x170 [ 119.091996][ T254] __sys_sendmsg+0xcd/0x170 [ 119.091996][ T254] do_syscall_64+0xc6/0x1e0 [ 119.091996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 119.091996][ T254] [ 129.175885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 129.176395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.176395][ T254] dst_init+0x84/0x4a0 [ 129.176395][ T254] dst_alloc+0x97/0x150 [ 129.176395][ T254] ip6_dst_alloc+0x23/0x90 [ 129.176395][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 129.176395][ T254] ip6_pol_route+0x56f/0x840 [ 129.176395][ T254] fib6_rule_lookup+0x334/0x630 [ 129.176395][ T254] ip6_route_output_flags+0x259/0x480 [ 129.176395][ T254] inet6_rtm_getroute+0x980/0xf70 [ 129.176395][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 129.176395][ T254] netlink_rcv_skb+0x130/0x360 [ 129.176395][ T254] netlink_unicast+0x449/0x710 [ 129.176395][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.176395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.176395][ T254] ___sys_sendmsg+0xee/0x170 [ 129.176395][ T254] __sys_sendmsg+0xcd/0x170 [ 129.176395][ T254] do_syscall_64+0xc6/0x1e0 [ 129.176395][ T254] [ 129.178613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.178613][ T254] netdev_get_by_index+0x5e/0x80 [ 129.178613][ T254] fib6_nh_init+0x3d8/0x1580 [ 129.178613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 129.178613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 129.178613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 129.178613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 129.178613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 129.178613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 129.178613][ T254] addrconf_dad_begin+0x310/0x670 [ 129.178613][ T254] addrconf_dad_work+0x10b/0xab0 [ 129.178613][ T254] process_one_work+0x84d/0x18a0 [ 129.178613][ T254] worker_thread+0x587/0xd30 [ 129.178613][ T254] kthread+0x28a/0x350 [ 129.178613][ T254] ret_from_fork+0x31/0x70 [ 129.178613][ T254] ret_from_fork_asm+0x1a/0x30 [ 129.178613][ T254] [ 129.180750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.180750][ T254] netdev_get_by_index+0x5e/0x80 [ 129.180750][ T254] fib6_nh_init+0x3d8/0x1580 [ 129.180750][ T254] ip6_route_info_create+0xf18/0x17d0 [ 129.180750][ T254] ip6_route_add+0x1c/0x140 [ 129.180750][ T254] addrconf_prefix_route+0x2a6/0x430 [ 129.180750][ T254] inet6_addr_add+0x4f8/0xa40 [ 129.180750][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 129.180750][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 129.180750][ T254] netlink_rcv_skb+0x130/0x360 [ 129.180750][ T254] netlink_unicast+0x449/0x710 [ 129.180750][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.180750][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.180750][ T254] ___sys_sendmsg+0xee/0x170 [ 129.180750][ T254] __sys_sendmsg+0xcd/0x170 [ 129.180750][ T254] do_syscall_64+0xc6/0x1e0 [ 129.180750][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 129.180750][ T254] [ 129.182990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.182990][ T254] netdev_get_by_index+0x5e/0x80 [ 129.182990][ T254] fib6_nh_init+0x3d8/0x1580 [ 129.182990][ T254] ip6_route_info_create+0xf18/0x17d0 [ 129.182990][ T254] addrconf_f6i_alloc+0x315/0x560 [ 129.182990][ T254] ipv6_add_addr+0x411/0x2000 [ 129.182990][ T254] inet6_addr_add+0x30e/0xa40 [ 129.182990][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 129.182990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 129.182990][ T254] netlink_rcv_skb+0x130/0x360 [ 129.182990][ T254] netlink_unicast+0x449/0x710 [ 129.182990][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.182990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.182990][ T254] ___sys_sendmsg+0xee/0x170 [ 129.182990][ T254] __sys_sendmsg+0xcd/0x170 [ 129.182990][ T254] do_syscall_64+0xc6/0x1e0 [ 129.182990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 129.182990][ T254] [ 129.185234][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.185234][ T254] netdev_get_by_index+0x5e/0x80 [ 129.185234][ T254] fib6_nh_init+0x3d8/0x1580 [ 129.185234][ T254] ip6_route_info_create+0xf18/0x17d0 [ 129.185234][ T254] ip6_route_add+0x1c/0x140 [ 129.185234][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 129.185234][ T254] addrconf_add_dev+0xe2/0x170 [ 129.185234][ T254] inet6_addr_add+0x12f/0xa40 [ 129.185234][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 129.185234][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 129.185234][ T254] netlink_rcv_skb+0x130/0x360 [ 129.185234][ T254] netlink_unicast+0x449/0x710 [ 129.185234][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.185234][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.185234][ T254] ___sys_sendmsg+0xee/0x170 [ 129.185234][ T254] __sys_sendmsg+0xcd/0x170 [ 129.185234][ T254] do_syscall_64+0xc6/0x1e0 [ 129.185234][ T254] [ 129.187436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.187436][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 129.187436][ T254] ipv6_find_idev+0x102/0x170 [ 129.187436][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 129.187436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 129.187436][ T254] netlink_rcv_skb+0x130/0x360 [ 129.187436][ T254] netlink_unicast+0x449/0x710 [ 129.187436][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.187436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.187436][ T254] ___sys_sendmsg+0xee/0x170 [ 129.187436][ T254] __sys_sendmsg+0xcd/0x170 [ 129.187436][ T254] do_syscall_64+0xc6/0x1e0 [ 129.187436][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 129.187436][ T254] [ 129.189169][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 129.189169][ T254] neigh_parms_alloc+0x1e5/0x510 [ 129.189169][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 129.189169][ T254] ipv6_find_idev+0x102/0x170 [ 129.189169][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 129.189169][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 129.189169][ T254] netlink_rcv_skb+0x130/0x360 [ 129.189169][ T254] netlink_unicast+0x449/0x710 [ 129.189169][ T254] netlink_sendmsg+0x723/0xbe0 [ 129.189169][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 129.189169][ T254] ___sys_sendmsg+0xee/0x170 [ 129.189169][ T254] __sys_sendmsg+0xcd/0x170 [ 129.189169][ T254] do_syscall_64+0xc6/0x1e0 [ 129.189169][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 129.189169][ T254] [ 139.247889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 139.248314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.248314][ T254] dst_init+0x84/0x4a0 [ 139.248314][ T254] dst_alloc+0x97/0x150 [ 139.248314][ T254] ip6_dst_alloc+0x23/0x90 [ 139.248314][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 139.248314][ T254] ip6_pol_route+0x56f/0x840 [ 139.248314][ T254] fib6_rule_lookup+0x334/0x630 [ 139.248314][ T254] ip6_route_output_flags+0x259/0x480 [ 139.248314][ T254] inet6_rtm_getroute+0x980/0xf70 [ 139.248314][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 139.248314][ T254] netlink_rcv_skb+0x130/0x360 [ 139.248314][ T254] netlink_unicast+0x449/0x710 [ 139.248314][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.248314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.248314][ T254] ___sys_sendmsg+0xee/0x170 [ 139.248314][ T254] __sys_sendmsg+0xcd/0x170 [ 139.248314][ T254] do_syscall_64+0xc6/0x1e0 [ 139.248314][ T254] [ 139.250695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.250695][ T254] netdev_get_by_index+0x5e/0x80 [ 139.250695][ T254] fib6_nh_init+0x3d8/0x1580 [ 139.250695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 139.250695][ T254] addrconf_f6i_alloc+0x265/0x560 [ 139.250695][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 139.250695][ T254] addrconf_join_anycast+0x1c0/0x220 [ 139.250695][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 139.250695][ T254] addrconf_dad_completed+0x12b/0xe20 [ 139.250695][ T254] addrconf_dad_begin+0x310/0x670 [ 139.250695][ T254] addrconf_dad_work+0x10b/0xab0 [ 139.250695][ T254] process_one_work+0x84d/0x18a0 [ 139.250695][ T254] worker_thread+0x587/0xd30 [ 139.250695][ T254] kthread+0x28a/0x350 [ 139.250695][ T254] ret_from_fork+0x31/0x70 [ 139.250695][ T254] ret_from_fork_asm+0x1a/0x30 [ 139.250695][ T254] [ 139.252880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.252880][ T254] netdev_get_by_index+0x5e/0x80 [ 139.252880][ T254] fib6_nh_init+0x3d8/0x1580 [ 139.252880][ T254] ip6_route_info_create+0xf18/0x17d0 [ 139.252880][ T254] ip6_route_add+0x1c/0x140 [ 139.252880][ T254] addrconf_prefix_route+0x2a6/0x430 [ 139.252880][ T254] inet6_addr_add+0x4f8/0xa40 [ 139.252880][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 139.252880][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 139.252880][ T254] netlink_rcv_skb+0x130/0x360 [ 139.252880][ T254] netlink_unicast+0x449/0x710 [ 139.252880][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.252880][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.252880][ T254] ___sys_sendmsg+0xee/0x170 [ 139.252880][ T254] __sys_sendmsg+0xcd/0x170 [ 139.252880][ T254] do_syscall_64+0xc6/0x1e0 [ 139.252880][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.252880][ T254] [ 139.255120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.255120][ T254] netdev_get_by_index+0x5e/0x80 [ 139.255120][ T254] fib6_nh_init+0x3d8/0x1580 [ 139.255120][ T254] ip6_route_info_create+0xf18/0x17d0 [ 139.255120][ T254] addrconf_f6i_alloc+0x315/0x560 [ 139.255120][ T254] ipv6_add_addr+0x411/0x2000 [ 139.255120][ T254] inet6_addr_add+0x30e/0xa40 [ 139.255120][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 139.255120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 139.255120][ T254] netlink_rcv_skb+0x130/0x360 [ 139.255120][ T254] netlink_unicast+0x449/0x710 [ 139.255120][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.255120][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.255120][ T254] ___sys_sendmsg+0xee/0x170 [ 139.255120][ T254] __sys_sendmsg+0xcd/0x170 [ 139.255120][ T254] do_syscall_64+0xc6/0x1e0 [ 139.255120][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.255120][ T254] [ 139.257370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.257370][ T254] netdev_get_by_index+0x5e/0x80 [ 139.257370][ T254] fib6_nh_init+0x3d8/0x1580 [ 139.257370][ T254] ip6_route_info_create+0xf18/0x17d0 [ 139.257370][ T254] ip6_route_add+0x1c/0x140 [ 139.257370][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 139.257370][ T254] addrconf_add_dev+0xe2/0x170 [ 139.257370][ T254] inet6_addr_add+0x12f/0xa40 [ 139.257370][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 139.257370][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 139.257370][ T254] netlink_rcv_skb+0x130/0x360 [ 139.257370][ T254] netlink_unicast+0x449/0x710 [ 139.257370][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.257370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.257370][ T254] ___sys_sendmsg+0xee/0x170 [ 139.257370][ T254] __sys_sendmsg+0xcd/0x170 [ 139.257370][ T254] do_syscall_64+0xc6/0x1e0 [ 139.257370][ T254] [ 139.259561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.259561][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 139.259561][ T254] ipv6_find_idev+0x102/0x170 [ 139.259561][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 139.259561][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 139.259561][ T254] netlink_rcv_skb+0x130/0x360 [ 139.259561][ T254] netlink_unicast+0x449/0x710 [ 139.259561][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.259561][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.259561][ T254] ___sys_sendmsg+0xee/0x170 [ 139.259561][ T254] __sys_sendmsg+0xcd/0x170 [ 139.259561][ T254] do_syscall_64+0xc6/0x1e0 [ 139.259561][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.259561][ T254] [ 139.261272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 139.261272][ T254] neigh_parms_alloc+0x1e5/0x510 [ 139.261272][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 139.261272][ T254] ipv6_find_idev+0x102/0x170 [ 139.261272][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 139.261272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 139.261272][ T254] netlink_rcv_skb+0x130/0x360 [ 139.261272][ T254] netlink_unicast+0x449/0x710 [ 139.261272][ T254] netlink_sendmsg+0x723/0xbe0 [ 139.261272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 139.261272][ T254] ___sys_sendmsg+0xee/0x170 [ 139.261272][ T254] __sys_sendmsg+0xcd/0x170 [ 139.261272][ T254] do_syscall_64+0xc6/0x1e0 [ 139.261272][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 139.261272][ T254] [ 149.359873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 149.360364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.360364][ T254] dst_init+0x84/0x4a0 [ 149.360364][ T254] dst_alloc+0x97/0x150 [ 149.360364][ T254] ip6_dst_alloc+0x23/0x90 [ 149.360364][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 149.360364][ T254] ip6_pol_route+0x56f/0x840 [ 149.360364][ T254] fib6_rule_lookup+0x334/0x630 [ 149.360364][ T254] ip6_route_output_flags+0x259/0x480 [ 149.360364][ T254] inet6_rtm_getroute+0x980/0xf70 [ 149.360364][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 149.360364][ T254] netlink_rcv_skb+0x130/0x360 [ 149.360364][ T254] netlink_unicast+0x449/0x710 [ 149.360364][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.360364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.360364][ T254] ___sys_sendmsg+0xee/0x170 [ 149.360364][ T254] __sys_sendmsg+0xcd/0x170 [ 149.360364][ T254] do_syscall_64+0xc6/0x1e0 [ 149.360364][ T254] [ 149.362555][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.362555][ T254] netdev_get_by_index+0x5e/0x80 [ 149.362555][ T254] fib6_nh_init+0x3d8/0x1580 [ 149.362555][ T254] ip6_route_info_create+0xf18/0x17d0 [ 149.362555][ T254] addrconf_f6i_alloc+0x265/0x560 [ 149.362555][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 149.362555][ T254] addrconf_join_anycast+0x1c0/0x220 [ 149.362555][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 149.362555][ T254] addrconf_dad_completed+0x12b/0xe20 [ 149.362555][ T254] addrconf_dad_begin+0x310/0x670 [ 149.362555][ T254] addrconf_dad_work+0x10b/0xab0 [ 149.362555][ T254] process_one_work+0x84d/0x18a0 [ 149.362555][ T254] worker_thread+0x587/0xd30 [ 149.362555][ T254] kthread+0x28a/0x350 [ 149.362555][ T254] ret_from_fork+0x31/0x70 [ 149.362555][ T254] ret_from_fork_asm+0x1a/0x30 [ 149.362555][ T254] [ 149.364695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.364695][ T254] netdev_get_by_index+0x5e/0x80 [ 149.364695][ T254] fib6_nh_init+0x3d8/0x1580 [ 149.364695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 149.364695][ T254] ip6_route_add+0x1c/0x140 [ 149.364695][ T254] addrconf_prefix_route+0x2a6/0x430 [ 149.364695][ T254] inet6_addr_add+0x4f8/0xa40 [ 149.364695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 149.364695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 149.364695][ T254] netlink_rcv_skb+0x130/0x360 [ 149.364695][ T254] netlink_unicast+0x449/0x710 [ 149.364695][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.364695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.364695][ T254] ___sys_sendmsg+0xee/0x170 [ 149.364695][ T254] __sys_sendmsg+0xcd/0x170 [ 149.364695][ T254] do_syscall_64+0xc6/0x1e0 [ 149.364695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 149.364695][ T254] [ 149.366937][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.366937][ T254] netdev_get_by_index+0x5e/0x80 [ 149.366937][ T254] fib6_nh_init+0x3d8/0x1580 [ 149.366937][ T254] ip6_route_info_create+0xf18/0x17d0 [ 149.366937][ T254] addrconf_f6i_alloc+0x315/0x560 [ 149.366937][ T254] ipv6_add_addr+0x411/0x2000 [ 149.366937][ T254] inet6_addr_add+0x30e/0xa40 [ 149.366937][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 149.366937][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 149.366937][ T254] netlink_rcv_skb+0x130/0x360 [ 149.366937][ T254] netlink_unicast+0x449/0x710 [ 149.366937][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.366937][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.366937][ T254] ___sys_sendmsg+0xee/0x170 [ 149.366937][ T254] __sys_sendmsg+0xcd/0x170 [ 149.366937][ T254] do_syscall_64+0xc6/0x1e0 [ 149.366937][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 149.366937][ T254] [ 149.369189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.369189][ T254] netdev_get_by_index+0x5e/0x80 [ 149.369189][ T254] fib6_nh_init+0x3d8/0x1580 [ 149.369189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 149.369189][ T254] ip6_route_add+0x1c/0x140 [ 149.369189][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 149.369189][ T254] addrconf_add_dev+0xe2/0x170 [ 149.369189][ T254] inet6_addr_add+0x12f/0xa40 [ 149.369189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 149.369189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 149.369189][ T254] netlink_rcv_skb+0x130/0x360 [ 149.369189][ T254] netlink_unicast+0x449/0x710 [ 149.369189][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.369189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.369189][ T254] ___sys_sendmsg+0xee/0x170 [ 149.369189][ T254] __sys_sendmsg+0xcd/0x170 [ 149.369189][ T254] do_syscall_64+0xc6/0x1e0 [ 149.369189][ T254] [ 149.371386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.371386][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 149.371386][ T254] ipv6_find_idev+0x102/0x170 [ 149.371386][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 149.371386][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 149.371386][ T254] netlink_rcv_skb+0x130/0x360 [ 149.371386][ T254] netlink_unicast+0x449/0x710 [ 149.371386][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.371386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.371386][ T254] ___sys_sendmsg+0xee/0x170 [ 149.371386][ T254] __sys_sendmsg+0xcd/0x170 [ 149.371386][ T254] do_syscall_64+0xc6/0x1e0 [ 149.371386][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 149.371386][ T254] [ 149.373130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 149.373130][ T254] neigh_parms_alloc+0x1e5/0x510 [ 149.373130][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 149.373130][ T254] ipv6_find_idev+0x102/0x170 [ 149.373130][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 149.373130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 149.373130][ T254] netlink_rcv_skb+0x130/0x360 [ 149.373130][ T254] netlink_unicast+0x449/0x710 [ 149.373130][ T254] netlink_sendmsg+0x723/0xbe0 [ 149.373130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 149.373130][ T254] ___sys_sendmsg+0xee/0x170 [ 149.373130][ T254] __sys_sendmsg+0xcd/0x170 [ 149.373130][ T254] do_syscall_64+0xc6/0x1e0 [ 149.373130][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 149.373130][ T254] [ 159.623880][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 159.624394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.624394][ T254] dst_init+0x84/0x4a0 [ 159.624394][ T254] dst_alloc+0x97/0x150 [ 159.624394][ T254] ip6_dst_alloc+0x23/0x90 [ 159.624394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 159.624394][ T254] ip6_pol_route+0x56f/0x840 [ 159.624394][ T254] fib6_rule_lookup+0x334/0x630 [ 159.624394][ T254] ip6_route_output_flags+0x259/0x480 [ 159.624394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 159.624394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 159.624394][ T254] netlink_rcv_skb+0x130/0x360 [ 159.624394][ T254] netlink_unicast+0x449/0x710 [ 159.624394][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.624394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.624394][ T254] ___sys_sendmsg+0xee/0x170 [ 159.624394][ T254] __sys_sendmsg+0xcd/0x170 [ 159.624394][ T254] do_syscall_64+0xc6/0x1e0 [ 159.624394][ T254] [ 159.626600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.626600][ T254] netdev_get_by_index+0x5e/0x80 [ 159.626600][ T254] fib6_nh_init+0x3d8/0x1580 [ 159.626600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 159.626600][ T254] addrconf_f6i_alloc+0x265/0x560 [ 159.626600][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 159.626600][ T254] addrconf_join_anycast+0x1c0/0x220 [ 159.626600][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 159.626600][ T254] addrconf_dad_completed+0x12b/0xe20 [ 159.626600][ T254] addrconf_dad_begin+0x310/0x670 [ 159.626600][ T254] addrconf_dad_work+0x10b/0xab0 [ 159.626600][ T254] process_one_work+0x84d/0x18a0 [ 159.626600][ T254] worker_thread+0x587/0xd30 [ 159.626600][ T254] kthread+0x28a/0x350 [ 159.626600][ T254] ret_from_fork+0x31/0x70 [ 159.626600][ T254] ret_from_fork_asm+0x1a/0x30 [ 159.626600][ T254] [ 159.628742][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.628742][ T254] netdev_get_by_index+0x5e/0x80 [ 159.628742][ T254] fib6_nh_init+0x3d8/0x1580 [ 159.628742][ T254] ip6_route_info_create+0xf18/0x17d0 [ 159.628742][ T254] ip6_route_add+0x1c/0x140 [ 159.628742][ T254] addrconf_prefix_route+0x2a6/0x430 [ 159.628742][ T254] inet6_addr_add+0x4f8/0xa40 [ 159.628742][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 159.628742][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 159.628742][ T254] netlink_rcv_skb+0x130/0x360 [ 159.628742][ T254] netlink_unicast+0x449/0x710 [ 159.628742][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.628742][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.628742][ T254] ___sys_sendmsg+0xee/0x170 [ 159.628742][ T254] __sys_sendmsg+0xcd/0x170 [ 159.628742][ T254] do_syscall_64+0xc6/0x1e0 [ 159.628742][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 159.628742][ T254] [ 159.630983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.630983][ T254] netdev_get_by_index+0x5e/0x80 [ 159.630983][ T254] fib6_nh_init+0x3d8/0x1580 [ 159.630983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 159.630983][ T254] addrconf_f6i_alloc+0x315/0x560 [ 159.630983][ T254] ipv6_add_addr+0x411/0x2000 [ 159.630983][ T254] inet6_addr_add+0x30e/0xa40 [ 159.630983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 159.630983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 159.630983][ T254] netlink_rcv_skb+0x130/0x360 [ 159.630983][ T254] netlink_unicast+0x449/0x710 [ 159.630983][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.630983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.630983][ T254] ___sys_sendmsg+0xee/0x170 [ 159.630983][ T254] __sys_sendmsg+0xcd/0x170 [ 159.630983][ T254] do_syscall_64+0xc6/0x1e0 [ 159.630983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 159.630983][ T254] [ 159.633237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.633237][ T254] netdev_get_by_index+0x5e/0x80 [ 159.633237][ T254] fib6_nh_init+0x3d8/0x1580 [ 159.633237][ T254] ip6_route_info_create+0xf18/0x17d0 [ 159.633237][ T254] ip6_route_add+0x1c/0x140 [ 159.633237][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 159.633237][ T254] addrconf_add_dev+0xe2/0x170 [ 159.633237][ T254] inet6_addr_add+0x12f/0xa40 [ 159.633237][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 159.633237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 159.633237][ T254] netlink_rcv_skb+0x130/0x360 [ 159.633237][ T254] netlink_unicast+0x449/0x710 [ 159.633237][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.633237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.633237][ T254] ___sys_sendmsg+0xee/0x170 [ 159.633237][ T254] __sys_sendmsg+0xcd/0x170 [ 159.633237][ T254] do_syscall_64+0xc6/0x1e0 [ 159.633237][ T254] [ 159.635432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.635432][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 159.635432][ T254] ipv6_find_idev+0x102/0x170 [ 159.635432][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 159.635432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 159.635432][ T254] netlink_rcv_skb+0x130/0x360 [ 159.635432][ T254] netlink_unicast+0x449/0x710 [ 159.635432][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.635432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.635432][ T254] ___sys_sendmsg+0xee/0x170 [ 159.635432][ T254] __sys_sendmsg+0xcd/0x170 [ 159.635432][ T254] do_syscall_64+0xc6/0x1e0 [ 159.635432][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 159.635432][ T254] [ 159.637158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 159.637158][ T254] neigh_parms_alloc+0x1e5/0x510 [ 159.637158][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 159.637158][ T254] ipv6_find_idev+0x102/0x170 [ 159.637158][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 159.637158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 159.637158][ T254] netlink_rcv_skb+0x130/0x360 [ 159.637158][ T254] netlink_unicast+0x449/0x710 [ 159.637158][ T254] netlink_sendmsg+0x723/0xbe0 [ 159.637158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 159.637158][ T254] ___sys_sendmsg+0xee/0x170 [ 159.637158][ T254] __sys_sendmsg+0xcd/0x170 [ 159.637158][ T254] do_syscall_64+0xc6/0x1e0 [ 159.637158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 159.637158][ T254] [ 169.887896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 169.888384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.888384][ T254] dst_init+0x84/0x4a0 [ 169.888384][ T254] dst_alloc+0x97/0x150 [ 169.888384][ T254] ip6_dst_alloc+0x23/0x90 [ 169.888384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 169.888384][ T254] ip6_pol_route+0x56f/0x840 [ 169.888384][ T254] fib6_rule_lookup+0x334/0x630 [ 169.888384][ T254] ip6_route_output_flags+0x259/0x480 [ 169.888384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 169.888384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 169.888384][ T254] netlink_rcv_skb+0x130/0x360 [ 169.888384][ T254] netlink_unicast+0x449/0x710 [ 169.888384][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.888384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.888384][ T254] ___sys_sendmsg+0xee/0x170 [ 169.888384][ T254] __sys_sendmsg+0xcd/0x170 [ 169.888384][ T254] do_syscall_64+0xc6/0x1e0 [ 169.888384][ T254] [ 169.890795][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.890795][ T254] netdev_get_by_index+0x5e/0x80 [ 169.890795][ T254] fib6_nh_init+0x3d8/0x1580 [ 169.890795][ T254] ip6_route_info_create+0xf18/0x17d0 [ 169.890795][ T254] addrconf_f6i_alloc+0x265/0x560 [ 169.890795][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 169.890795][ T254] addrconf_join_anycast+0x1c0/0x220 [ 169.890795][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 169.890795][ T254] addrconf_dad_completed+0x12b/0xe20 [ 169.890795][ T254] addrconf_dad_begin+0x310/0x670 [ 169.890795][ T254] addrconf_dad_work+0x10b/0xab0 [ 169.890795][ T254] process_one_work+0x84d/0x18a0 [ 169.890795][ T254] worker_thread+0x587/0xd30 [ 169.890795][ T254] kthread+0x28a/0x350 [ 169.890795][ T254] ret_from_fork+0x31/0x70 [ 169.890795][ T254] ret_from_fork_asm+0x1a/0x30 [ 169.890795][ T254] [ 169.892942][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.892942][ T254] netdev_get_by_index+0x5e/0x80 [ 169.892942][ T254] fib6_nh_init+0x3d8/0x1580 [ 169.892942][ T254] ip6_route_info_create+0xf18/0x17d0 [ 169.892942][ T254] ip6_route_add+0x1c/0x140 [ 169.892942][ T254] addrconf_prefix_route+0x2a6/0x430 [ 169.892942][ T254] inet6_addr_add+0x4f8/0xa40 [ 169.892942][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 169.892942][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 169.892942][ T254] netlink_rcv_skb+0x130/0x360 [ 169.892942][ T254] netlink_unicast+0x449/0x710 [ 169.892942][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.892942][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.892942][ T254] ___sys_sendmsg+0xee/0x170 [ 169.892942][ T254] __sys_sendmsg+0xcd/0x170 [ 169.892942][ T254] do_syscall_64+0xc6/0x1e0 [ 169.892942][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 169.892942][ T254] [ 169.895197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.895197][ T254] netdev_get_by_index+0x5e/0x80 [ 169.895197][ T254] fib6_nh_init+0x3d8/0x1580 [ 169.895197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 169.895197][ T254] addrconf_f6i_alloc+0x315/0x560 [ 169.895197][ T254] ipv6_add_addr+0x411/0x2000 [ 169.895197][ T254] inet6_addr_add+0x30e/0xa40 [ 169.895197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 169.895197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 169.895197][ T254] netlink_rcv_skb+0x130/0x360 [ 169.895197][ T254] netlink_unicast+0x449/0x710 [ 169.895197][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.895197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.895197][ T254] ___sys_sendmsg+0xee/0x170 [ 169.895197][ T254] __sys_sendmsg+0xcd/0x170 [ 169.895197][ T254] do_syscall_64+0xc6/0x1e0 [ 169.895197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 169.895197][ T254] [ 169.897446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.897446][ T254] netdev_get_by_index+0x5e/0x80 [ 169.897446][ T254] fib6_nh_init+0x3d8/0x1580 [ 169.897446][ T254] ip6_route_info_create+0xf18/0x17d0 [ 169.897446][ T254] ip6_route_add+0x1c/0x140 [ 169.897446][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 169.897446][ T254] addrconf_add_dev+0xe2/0x170 [ 169.897446][ T254] inet6_addr_add+0x12f/0xa40 [ 169.897446][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 169.897446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 169.897446][ T254] netlink_rcv_skb+0x130/0x360 [ 169.897446][ T254] netlink_unicast+0x449/0x710 [ 169.897446][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.897446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.897446][ T254] ___sys_sendmsg+0xee/0x170 [ 169.897446][ T254] __sys_sendmsg+0xcd/0x170 [ 169.897446][ T254] do_syscall_64+0xc6/0x1e0 [ 169.897446][ T254] [ 169.899673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.899673][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 169.899673][ T254] ipv6_find_idev+0x102/0x170 [ 169.899673][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 169.899673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 169.899673][ T254] netlink_rcv_skb+0x130/0x360 [ 169.899673][ T254] netlink_unicast+0x449/0x710 [ 169.899673][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.899673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.899673][ T254] ___sys_sendmsg+0xee/0x170 [ 169.899673][ T254] __sys_sendmsg+0xcd/0x170 [ 169.899673][ T254] do_syscall_64+0xc6/0x1e0 [ 169.899673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 169.899673][ T254] [ 169.901403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 169.901403][ T254] neigh_parms_alloc+0x1e5/0x510 [ 169.901403][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 169.901403][ T254] ipv6_find_idev+0x102/0x170 [ 169.901403][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 169.901403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 169.901403][ T254] netlink_rcv_skb+0x130/0x360 [ 169.901403][ T254] netlink_unicast+0x449/0x710 [ 169.901403][ T254] netlink_sendmsg+0x723/0xbe0 [ 169.901403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 169.901403][ T254] ___sys_sendmsg+0xee/0x170 [ 169.901403][ T254] __sys_sendmsg+0xcd/0x170 [ 169.901403][ T254] do_syscall_64+0xc6/0x1e0 [ 169.901403][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 169.901403][ T254] [ 180.151856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 180.152359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.152359][ T254] dst_init+0x84/0x4a0 [ 180.152359][ T254] dst_alloc+0x97/0x150 [ 180.152359][ T254] ip6_dst_alloc+0x23/0x90 [ 180.152359][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 180.152359][ T254] ip6_pol_route+0x56f/0x840 [ 180.152359][ T254] fib6_rule_lookup+0x334/0x630 [ 180.152359][ T254] ip6_route_output_flags+0x259/0x480 [ 180.152359][ T254] inet6_rtm_getroute+0x980/0xf70 [ 180.152359][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 180.152359][ T254] netlink_rcv_skb+0x130/0x360 [ 180.152359][ T254] netlink_unicast+0x449/0x710 [ 180.152359][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.152359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.152359][ T254] ___sys_sendmsg+0xee/0x170 [ 180.152359][ T254] __sys_sendmsg+0xcd/0x170 [ 180.152359][ T254] do_syscall_64+0xc6/0x1e0 [ 180.152359][ T254] [ 180.154582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.154582][ T254] netdev_get_by_index+0x5e/0x80 [ 180.154582][ T254] fib6_nh_init+0x3d8/0x1580 [ 180.154582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 180.154582][ T254] addrconf_f6i_alloc+0x265/0x560 [ 180.154582][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 180.154582][ T254] addrconf_join_anycast+0x1c0/0x220 [ 180.154582][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 180.154582][ T254] addrconf_dad_completed+0x12b/0xe20 [ 180.154582][ T254] addrconf_dad_begin+0x310/0x670 [ 180.154582][ T254] addrconf_dad_work+0x10b/0xab0 [ 180.154582][ T254] process_one_work+0x84d/0x18a0 [ 180.154582][ T254] worker_thread+0x587/0xd30 [ 180.154582][ T254] kthread+0x28a/0x350 [ 180.154582][ T254] ret_from_fork+0x31/0x70 [ 180.154582][ T254] ret_from_fork_asm+0x1a/0x30 [ 180.154582][ T254] [ 180.156733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.156733][ T254] netdev_get_by_index+0x5e/0x80 [ 180.156733][ T254] fib6_nh_init+0x3d8/0x1580 [ 180.156733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 180.156733][ T254] ip6_route_add+0x1c/0x140 [ 180.156733][ T254] addrconf_prefix_route+0x2a6/0x430 [ 180.156733][ T254] inet6_addr_add+0x4f8/0xa40 [ 180.156733][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 180.156733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 180.156733][ T254] netlink_rcv_skb+0x130/0x360 [ 180.156733][ T254] netlink_unicast+0x449/0x710 [ 180.156733][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.156733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.156733][ T254] ___sys_sendmsg+0xee/0x170 [ 180.156733][ T254] __sys_sendmsg+0xcd/0x170 [ 180.156733][ T254] do_syscall_64+0xc6/0x1e0 [ 180.156733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 180.156733][ T254] [ 180.158970][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.158970][ T254] netdev_get_by_index+0x5e/0x80 [ 180.158970][ T254] fib6_nh_init+0x3d8/0x1580 [ 180.158970][ T254] ip6_route_info_create+0xf18/0x17d0 [ 180.158970][ T254] addrconf_f6i_alloc+0x315/0x560 [ 180.158970][ T254] ipv6_add_addr+0x411/0x2000 [ 180.158970][ T254] inet6_addr_add+0x30e/0xa40 [ 180.158970][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 180.158970][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 180.158970][ T254] netlink_rcv_skb+0x130/0x360 [ 180.158970][ T254] netlink_unicast+0x449/0x710 [ 180.158970][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.158970][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.158970][ T254] ___sys_sendmsg+0xee/0x170 [ 180.158970][ T254] __sys_sendmsg+0xcd/0x170 [ 180.158970][ T254] do_syscall_64+0xc6/0x1e0 [ 180.158970][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 180.158970][ T254] [ 180.161208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.161208][ T254] netdev_get_by_index+0x5e/0x80 [ 180.161208][ T254] fib6_nh_init+0x3d8/0x1580 [ 180.161208][ T254] ip6_route_info_create+0xf18/0x17d0 [ 180.161208][ T254] ip6_route_add+0x1c/0x140 [ 180.161208][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 180.161208][ T254] addrconf_add_dev+0xe2/0x170 [ 180.161208][ T254] inet6_addr_add+0x12f/0xa40 [ 180.161208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 180.161208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 180.161208][ T254] netlink_rcv_skb+0x130/0x360 [ 180.161208][ T254] netlink_unicast+0x449/0x710 [ 180.161208][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.161208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.161208][ T254] ___sys_sendmsg+0xee/0x170 [ 180.161208][ T254] __sys_sendmsg+0xcd/0x170 [ 180.161208][ T254] do_syscall_64+0xc6/0x1e0 [ 180.161208][ T254] [ 180.163398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.163398][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 180.163398][ T254] ipv6_find_idev+0x102/0x170 [ 180.163398][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 180.163398][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 180.163398][ T254] netlink_rcv_skb+0x130/0x360 [ 180.163398][ T254] netlink_unicast+0x449/0x710 [ 180.163398][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.163398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.163398][ T254] ___sys_sendmsg+0xee/0x170 [ 180.163398][ T254] __sys_sendmsg+0xcd/0x170 [ 180.163398][ T254] do_syscall_64+0xc6/0x1e0 [ 180.163398][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 180.163398][ T254] [ 180.165135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 180.165135][ T254] neigh_parms_alloc+0x1e5/0x510 [ 180.165135][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 180.165135][ T254] ipv6_find_idev+0x102/0x170 [ 180.165135][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 180.165135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 180.165135][ T254] netlink_rcv_skb+0x130/0x360 [ 180.165135][ T254] netlink_unicast+0x449/0x710 [ 180.165135][ T254] netlink_sendmsg+0x723/0xbe0 [ 180.165135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 180.165135][ T254] ___sys_sendmsg+0xee/0x170 [ 180.165135][ T254] __sys_sendmsg+0xcd/0x170 [ 180.165135][ T254] do_syscall_64+0xc6/0x1e0 [ 180.165135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 180.165135][ T254] [ 190.215916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 190.216398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.216398][ T254] dst_init+0x84/0x4a0 [ 190.216398][ T254] dst_alloc+0x97/0x150 [ 190.216398][ T254] ip6_dst_alloc+0x23/0x90 [ 190.216398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 190.216398][ T254] ip6_pol_route+0x56f/0x840 [ 190.216398][ T254] fib6_rule_lookup+0x334/0x630 [ 190.216398][ T254] ip6_route_output_flags+0x259/0x480 [ 190.216398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 190.216398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 190.216398][ T254] netlink_rcv_skb+0x130/0x360 [ 190.216398][ T254] netlink_unicast+0x449/0x710 [ 190.216398][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.216398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.216398][ T254] ___sys_sendmsg+0xee/0x170 [ 190.216398][ T254] __sys_sendmsg+0xcd/0x170 [ 190.216398][ T254] do_syscall_64+0xc6/0x1e0 [ 190.216398][ T254] [ 190.218605][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.218605][ T254] netdev_get_by_index+0x5e/0x80 [ 190.218605][ T254] fib6_nh_init+0x3d8/0x1580 [ 190.218605][ T254] ip6_route_info_create+0xf18/0x17d0 [ 190.218605][ T254] addrconf_f6i_alloc+0x265/0x560 [ 190.218605][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 190.218605][ T254] addrconf_join_anycast+0x1c0/0x220 [ 190.218605][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 190.218605][ T254] addrconf_dad_completed+0x12b/0xe20 [ 190.218605][ T254] addrconf_dad_begin+0x310/0x670 [ 190.218605][ T254] addrconf_dad_work+0x10b/0xab0 [ 190.218605][ T254] process_one_work+0x84d/0x18a0 [ 190.218605][ T254] worker_thread+0x587/0xd30 [ 190.218605][ T254] kthread+0x28a/0x350 [ 190.218605][ T254] ret_from_fork+0x31/0x70 [ 190.218605][ T254] ret_from_fork_asm+0x1a/0x30 [ 190.218605][ T254] [ 190.220751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.220751][ T254] netdev_get_by_index+0x5e/0x80 [ 190.220751][ T254] fib6_nh_init+0x3d8/0x1580 [ 190.220751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 190.220751][ T254] ip6_route_add+0x1c/0x140 [ 190.220751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 190.220751][ T254] inet6_addr_add+0x4f8/0xa40 [ 190.220751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 190.220751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 190.220751][ T254] netlink_rcv_skb+0x130/0x360 [ 190.220751][ T254] netlink_unicast+0x449/0x710 [ 190.220751][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.220751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.220751][ T254] ___sys_sendmsg+0xee/0x170 [ 190.220751][ T254] __sys_sendmsg+0xcd/0x170 [ 190.220751][ T254] do_syscall_64+0xc6/0x1e0 [ 190.220751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 190.220751][ T254] [ 190.222995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.222995][ T254] netdev_get_by_index+0x5e/0x80 [ 190.222995][ T254] fib6_nh_init+0x3d8/0x1580 [ 190.222995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 190.222995][ T254] addrconf_f6i_alloc+0x315/0x560 [ 190.222995][ T254] ipv6_add_addr+0x411/0x2000 [ 190.222995][ T254] inet6_addr_add+0x30e/0xa40 [ 190.222995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 190.222995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 190.222995][ T254] netlink_rcv_skb+0x130/0x360 [ 190.222995][ T254] netlink_unicast+0x449/0x710 [ 190.222995][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.222995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.222995][ T254] ___sys_sendmsg+0xee/0x170 [ 190.222995][ T254] __sys_sendmsg+0xcd/0x170 [ 190.222995][ T254] do_syscall_64+0xc6/0x1e0 [ 190.222995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 190.222995][ T254] [ 190.225236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.225236][ T254] netdev_get_by_index+0x5e/0x80 [ 190.225236][ T254] fib6_nh_init+0x3d8/0x1580 [ 190.225236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 190.225236][ T254] ip6_route_add+0x1c/0x140 [ 190.225236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 190.225236][ T254] addrconf_add_dev+0xe2/0x170 [ 190.225236][ T254] inet6_addr_add+0x12f/0xa40 [ 190.225236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 190.225236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 190.225236][ T254] netlink_rcv_skb+0x130/0x360 [ 190.225236][ T254] netlink_unicast+0x449/0x710 [ 190.225236][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.225236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.225236][ T254] ___sys_sendmsg+0xee/0x170 [ 190.225236][ T254] __sys_sendmsg+0xcd/0x170 [ 190.225236][ T254] do_syscall_64+0xc6/0x1e0 [ 190.225236][ T254] [ 190.227442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.227442][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 190.227442][ T254] ipv6_find_idev+0x102/0x170 [ 190.227442][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 190.227442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 190.227442][ T254] netlink_rcv_skb+0x130/0x360 [ 190.227442][ T254] netlink_unicast+0x449/0x710 [ 190.227442][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.227442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.227442][ T254] ___sys_sendmsg+0xee/0x170 [ 190.227442][ T254] __sys_sendmsg+0xcd/0x170 [ 190.227442][ T254] do_syscall_64+0xc6/0x1e0 [ 190.227442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 190.227442][ T254] [ 190.229164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 190.229164][ T254] neigh_parms_alloc+0x1e5/0x510 [ 190.229164][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 190.229164][ T254] ipv6_find_idev+0x102/0x170 [ 190.229164][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 190.229164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 190.229164][ T254] netlink_rcv_skb+0x130/0x360 [ 190.229164][ T254] netlink_unicast+0x449/0x710 [ 190.229164][ T254] netlink_sendmsg+0x723/0xbe0 [ 190.229164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 190.229164][ T254] ___sys_sendmsg+0xee/0x170 [ 190.229164][ T254] __sys_sendmsg+0xcd/0x170 [ 190.229164][ T254] do_syscall_64+0xc6/0x1e0 [ 190.229164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 190.229164][ T254] [ 200.471845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 200.472334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.472334][ T254] dst_init+0x84/0x4a0 [ 200.472334][ T254] dst_alloc+0x97/0x150 [ 200.472334][ T254] ip6_dst_alloc+0x23/0x90 [ 200.472334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 200.472334][ T254] ip6_pol_route+0x56f/0x840 [ 200.472334][ T254] fib6_rule_lookup+0x334/0x630 [ 200.472334][ T254] ip6_route_output_flags+0x259/0x480 [ 200.472334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 200.472334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 200.472334][ T254] netlink_rcv_skb+0x130/0x360 [ 200.472334][ T254] netlink_unicast+0x449/0x710 [ 200.472334][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.472334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.472334][ T254] ___sys_sendmsg+0xee/0x170 [ 200.472334][ T254] __sys_sendmsg+0xcd/0x170 [ 200.472334][ T254] do_syscall_64+0xc6/0x1e0 [ 200.472334][ T254] [ 200.474531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.474531][ T254] netdev_get_by_index+0x5e/0x80 [ 200.474531][ T254] fib6_nh_init+0x3d8/0x1580 [ 200.474531][ T254] ip6_route_info_create+0xf18/0x17d0 [ 200.474531][ T254] addrconf_f6i_alloc+0x265/0x560 [ 200.474531][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 200.474531][ T254] addrconf_join_anycast+0x1c0/0x220 [ 200.474531][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 200.474531][ T254] addrconf_dad_completed+0x12b/0xe20 [ 200.474531][ T254] addrconf_dad_begin+0x310/0x670 [ 200.474531][ T254] addrconf_dad_work+0x10b/0xab0 [ 200.474531][ T254] process_one_work+0x84d/0x18a0 [ 200.474531][ T254] worker_thread+0x587/0xd30 [ 200.474531][ T254] kthread+0x28a/0x350 [ 200.474531][ T254] ret_from_fork+0x31/0x70 [ 200.474531][ T254] ret_from_fork_asm+0x1a/0x30 [ 200.474531][ T254] [ 200.476692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.476692][ T254] netdev_get_by_index+0x5e/0x80 [ 200.476692][ T254] fib6_nh_init+0x3d8/0x1580 [ 200.476692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 200.476692][ T254] ip6_route_add+0x1c/0x140 [ 200.476692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 200.476692][ T254] inet6_addr_add+0x4f8/0xa40 [ 200.476692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 200.476692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 200.476692][ T254] netlink_rcv_skb+0x130/0x360 [ 200.476692][ T254] netlink_unicast+0x449/0x710 [ 200.476692][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.476692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.476692][ T254] ___sys_sendmsg+0xee/0x170 [ 200.476692][ T254] __sys_sendmsg+0xcd/0x170 [ 200.476692][ T254] do_syscall_64+0xc6/0x1e0 [ 200.476692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 200.476692][ T254] [ 200.478952][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.478952][ T254] netdev_get_by_index+0x5e/0x80 [ 200.478952][ T254] fib6_nh_init+0x3d8/0x1580 [ 200.478952][ T254] ip6_route_info_create+0xf18/0x17d0 [ 200.478952][ T254] addrconf_f6i_alloc+0x315/0x560 [ 200.478952][ T254] ipv6_add_addr+0x411/0x2000 [ 200.478952][ T254] inet6_addr_add+0x30e/0xa40 [ 200.478952][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 200.478952][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 200.478952][ T254] netlink_rcv_skb+0x130/0x360 [ 200.478952][ T254] netlink_unicast+0x449/0x710 [ 200.478952][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.478952][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.478952][ T254] ___sys_sendmsg+0xee/0x170 [ 200.478952][ T254] __sys_sendmsg+0xcd/0x170 [ 200.478952][ T254] do_syscall_64+0xc6/0x1e0 [ 200.478952][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 200.478952][ T254] [ 200.481204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.481204][ T254] netdev_get_by_index+0x5e/0x80 [ 200.481204][ T254] fib6_nh_init+0x3d8/0x1580 [ 200.481204][ T254] ip6_route_info_create+0xf18/0x17d0 [ 200.481204][ T254] ip6_route_add+0x1c/0x140 [ 200.481204][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 200.481204][ T254] addrconf_add_dev+0xe2/0x170 [ 200.481204][ T254] inet6_addr_add+0x12f/0xa40 [ 200.481204][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 200.481204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 200.481204][ T254] netlink_rcv_skb+0x130/0x360 [ 200.481204][ T254] netlink_unicast+0x449/0x710 [ 200.481204][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.481204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.481204][ T254] ___sys_sendmsg+0xee/0x170 [ 200.481204][ T254] __sys_sendmsg+0xcd/0x170 [ 200.481204][ T254] do_syscall_64+0xc6/0x1e0 [ 200.481204][ T254] [ 200.483414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.483414][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 200.483414][ T254] ipv6_find_idev+0x102/0x170 [ 200.483414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 200.483414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 200.483414][ T254] netlink_rcv_skb+0x130/0x360 [ 200.483414][ T254] netlink_unicast+0x449/0x710 [ 200.483414][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.483414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.483414][ T254] ___sys_sendmsg+0xee/0x170 [ 200.483414][ T254] __sys_sendmsg+0xcd/0x170 [ 200.483414][ T254] do_syscall_64+0xc6/0x1e0 [ 200.483414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 200.483414][ T254] [ 200.485146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 200.485146][ T254] neigh_parms_alloc+0x1e5/0x510 [ 200.485146][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 200.485146][ T254] ipv6_find_idev+0x102/0x170 [ 200.485146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 200.485146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 200.485146][ T254] netlink_rcv_skb+0x130/0x360 [ 200.485146][ T254] netlink_unicast+0x449/0x710 [ 200.485146][ T254] netlink_sendmsg+0x723/0xbe0 [ 200.485146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 200.485146][ T254] ___sys_sendmsg+0xee/0x170 [ 200.485146][ T254] __sys_sendmsg+0xcd/0x170 [ 200.485146][ T254] do_syscall_64+0xc6/0x1e0 [ 200.485146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 200.485146][ T254] [ 210.727927][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 210.728401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.728401][ T254] dst_init+0x84/0x4a0 [ 210.728401][ T254] dst_alloc+0x97/0x150 [ 210.728401][ T254] ip6_dst_alloc+0x23/0x90 [ 210.728401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 210.728401][ T254] ip6_pol_route+0x56f/0x840 [ 210.728401][ T254] fib6_rule_lookup+0x334/0x630 [ 210.728401][ T254] ip6_route_output_flags+0x259/0x480 [ 210.728401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 210.728401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 210.728401][ T254] netlink_rcv_skb+0x130/0x360 [ 210.728401][ T254] netlink_unicast+0x449/0x710 [ 210.728401][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.728401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.728401][ T254] ___sys_sendmsg+0xee/0x170 [ 210.728401][ T254] __sys_sendmsg+0xcd/0x170 [ 210.728401][ T254] do_syscall_64+0xc6/0x1e0 [ 210.728401][ T254] [ 210.730592][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.730592][ T254] netdev_get_by_index+0x5e/0x80 [ 210.730592][ T254] fib6_nh_init+0x3d8/0x1580 [ 210.730592][ T254] ip6_route_info_create+0xf18/0x17d0 [ 210.730592][ T254] addrconf_f6i_alloc+0x265/0x560 [ 210.730592][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 210.730592][ T254] addrconf_join_anycast+0x1c0/0x220 [ 210.730592][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 210.730592][ T254] addrconf_dad_completed+0x12b/0xe20 [ 210.730592][ T254] addrconf_dad_begin+0x310/0x670 [ 210.730592][ T254] addrconf_dad_work+0x10b/0xab0 [ 210.730592][ T254] process_one_work+0x84d/0x18a0 [ 210.730592][ T254] worker_thread+0x587/0xd30 [ 210.730592][ T254] kthread+0x28a/0x350 [ 210.730592][ T254] ret_from_fork+0x31/0x70 [ 210.730592][ T254] ret_from_fork_asm+0x1a/0x30 [ 210.730592][ T254] [ 210.732732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.732732][ T254] netdev_get_by_index+0x5e/0x80 [ 210.732732][ T254] fib6_nh_init+0x3d8/0x1580 [ 210.732732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 210.732732][ T254] ip6_route_add+0x1c/0x140 [ 210.732732][ T254] addrconf_prefix_route+0x2a6/0x430 [ 210.732732][ T254] inet6_addr_add+0x4f8/0xa40 [ 210.732732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 210.732732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 210.732732][ T254] netlink_rcv_skb+0x130/0x360 [ 210.732732][ T254] netlink_unicast+0x449/0x710 [ 210.732732][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.732732][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.732732][ T254] ___sys_sendmsg+0xee/0x170 [ 210.732732][ T254] __sys_sendmsg+0xcd/0x170 [ 210.732732][ T254] do_syscall_64+0xc6/0x1e0 [ 210.732732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 210.732732][ T254] [ 210.734972][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.734972][ T254] netdev_get_by_index+0x5e/0x80 [ 210.734972][ T254] fib6_nh_init+0x3d8/0x1580 [ 210.734972][ T254] ip6_route_info_create+0xf18/0x17d0 [ 210.734972][ T254] addrconf_f6i_alloc+0x315/0x560 [ 210.734972][ T254] ipv6_add_addr+0x411/0x2000 [ 210.734972][ T254] inet6_addr_add+0x30e/0xa40 [ 210.734972][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 210.734972][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 210.734972][ T254] netlink_rcv_skb+0x130/0x360 [ 210.734972][ T254] netlink_unicast+0x449/0x710 [ 210.734972][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.734972][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.734972][ T254] ___sys_sendmsg+0xee/0x170 [ 210.734972][ T254] __sys_sendmsg+0xcd/0x170 [ 210.734972][ T254] do_syscall_64+0xc6/0x1e0 [ 210.734972][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 210.734972][ T254] [ 210.737236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.737236][ T254] netdev_get_by_index+0x5e/0x80 [ 210.737236][ T254] fib6_nh_init+0x3d8/0x1580 [ 210.737236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 210.737236][ T254] ip6_route_add+0x1c/0x140 [ 210.737236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 210.737236][ T254] addrconf_add_dev+0xe2/0x170 [ 210.737236][ T254] inet6_addr_add+0x12f/0xa40 [ 210.737236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 210.737236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 210.737236][ T254] netlink_rcv_skb+0x130/0x360 [ 210.737236][ T254] netlink_unicast+0x449/0x710 [ 210.737236][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.737236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.737236][ T254] ___sys_sendmsg+0xee/0x170 [ 210.737236][ T254] __sys_sendmsg+0xcd/0x170 [ 210.737236][ T254] do_syscall_64+0xc6/0x1e0 [ 210.737236][ T254] [ 210.739428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.739428][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 210.739428][ T254] ipv6_find_idev+0x102/0x170 [ 210.739428][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 210.739428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 210.739428][ T254] netlink_rcv_skb+0x130/0x360 [ 210.739428][ T254] netlink_unicast+0x449/0x710 [ 210.739428][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.739428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.739428][ T254] ___sys_sendmsg+0xee/0x170 [ 210.739428][ T254] __sys_sendmsg+0xcd/0x170 [ 210.739428][ T254] do_syscall_64+0xc6/0x1e0 [ 210.739428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 210.739428][ T254] [ 210.741151][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 210.741151][ T254] neigh_parms_alloc+0x1e5/0x510 [ 210.741151][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 210.741151][ T254] ipv6_find_idev+0x102/0x170 [ 210.741151][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 210.741151][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 210.741151][ T254] netlink_rcv_skb+0x130/0x360 [ 210.741151][ T254] netlink_unicast+0x449/0x710 [ 210.741151][ T254] netlink_sendmsg+0x723/0xbe0 [ 210.741151][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 210.741151][ T254] ___sys_sendmsg+0xee/0x170 [ 210.741151][ T254] __sys_sendmsg+0xcd/0x170 [ 210.741151][ T254] do_syscall_64+0xc6/0x1e0 [ 210.741151][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 210.741151][ T254] [ 220.983871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 220.984347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.984347][ T254] dst_init+0x84/0x4a0 [ 220.984347][ T254] dst_alloc+0x97/0x150 [ 220.984347][ T254] ip6_dst_alloc+0x23/0x90 [ 220.984347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 220.984347][ T254] ip6_pol_route+0x56f/0x840 [ 220.984347][ T254] fib6_rule_lookup+0x334/0x630 [ 220.984347][ T254] ip6_route_output_flags+0x259/0x480 [ 220.984347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 220.984347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 220.984347][ T254] netlink_rcv_skb+0x130/0x360 [ 220.984347][ T254] netlink_unicast+0x449/0x710 [ 220.984347][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.984347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.984347][ T254] ___sys_sendmsg+0xee/0x170 [ 220.984347][ T254] __sys_sendmsg+0xcd/0x170 [ 220.984347][ T254] do_syscall_64+0xc6/0x1e0 [ 220.984347][ T254] [ 220.986549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.986549][ T254] netdev_get_by_index+0x5e/0x80 [ 220.986549][ T254] fib6_nh_init+0x3d8/0x1580 [ 220.986549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 220.986549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 220.986549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 220.986549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 220.986549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 220.986549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 220.986549][ T254] addrconf_dad_begin+0x310/0x670 [ 220.986549][ T254] addrconf_dad_work+0x10b/0xab0 [ 220.986549][ T254] process_one_work+0x84d/0x18a0 [ 220.986549][ T254] worker_thread+0x587/0xd30 [ 220.986549][ T254] kthread+0x28a/0x350 [ 220.986549][ T254] ret_from_fork+0x31/0x70 [ 220.986549][ T254] ret_from_fork_asm+0x1a/0x30 [ 220.986549][ T254] [ 220.988686][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.988686][ T254] netdev_get_by_index+0x5e/0x80 [ 220.988686][ T254] fib6_nh_init+0x3d8/0x1580 [ 220.988686][ T254] ip6_route_info_create+0xf18/0x17d0 [ 220.988686][ T254] ip6_route_add+0x1c/0x140 [ 220.988686][ T254] addrconf_prefix_route+0x2a6/0x430 [ 220.988686][ T254] inet6_addr_add+0x4f8/0xa40 [ 220.988686][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 220.988686][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 220.988686][ T254] netlink_rcv_skb+0x130/0x360 [ 220.988686][ T254] netlink_unicast+0x449/0x710 [ 220.988686][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.988686][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.988686][ T254] ___sys_sendmsg+0xee/0x170 [ 220.988686][ T254] __sys_sendmsg+0xcd/0x170 [ 220.988686][ T254] do_syscall_64+0xc6/0x1e0 [ 220.988686][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 220.988686][ T254] [ 220.990927][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.990927][ T254] netdev_get_by_index+0x5e/0x80 [ 220.990927][ T254] fib6_nh_init+0x3d8/0x1580 [ 220.990927][ T254] ip6_route_info_create+0xf18/0x17d0 [ 220.990927][ T254] addrconf_f6i_alloc+0x315/0x560 [ 220.990927][ T254] ipv6_add_addr+0x411/0x2000 [ 220.990927][ T254] inet6_addr_add+0x30e/0xa40 [ 220.990927][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 220.990927][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 220.990927][ T254] netlink_rcv_skb+0x130/0x360 [ 220.990927][ T254] netlink_unicast+0x449/0x710 [ 220.990927][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.990927][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.990927][ T254] ___sys_sendmsg+0xee/0x170 [ 220.990927][ T254] __sys_sendmsg+0xcd/0x170 [ 220.990927][ T254] do_syscall_64+0xc6/0x1e0 [ 220.990927][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 220.990927][ T254] [ 220.993158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.993158][ T254] netdev_get_by_index+0x5e/0x80 [ 220.993158][ T254] fib6_nh_init+0x3d8/0x1580 [ 220.993158][ T254] ip6_route_info_create+0xf18/0x17d0 [ 220.993158][ T254] ip6_route_add+0x1c/0x140 [ 220.993158][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 220.993158][ T254] addrconf_add_dev+0xe2/0x170 [ 220.993158][ T254] inet6_addr_add+0x12f/0xa40 [ 220.993158][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 220.993158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 220.993158][ T254] netlink_rcv_skb+0x130/0x360 [ 220.993158][ T254] netlink_unicast+0x449/0x710 [ 220.993158][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.993158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.993158][ T254] ___sys_sendmsg+0xee/0x170 [ 220.993158][ T254] __sys_sendmsg+0xcd/0x170 [ 220.993158][ T254] do_syscall_64+0xc6/0x1e0 [ 220.993158][ T254] [ 220.995340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.995340][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 220.995340][ T254] ipv6_find_idev+0x102/0x170 [ 220.995340][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 220.995340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 220.995340][ T254] netlink_rcv_skb+0x130/0x360 [ 220.995340][ T254] netlink_unicast+0x449/0x710 [ 220.995340][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.995340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.995340][ T254] ___sys_sendmsg+0xee/0x170 [ 220.995340][ T254] __sys_sendmsg+0xcd/0x170 [ 220.995340][ T254] do_syscall_64+0xc6/0x1e0 [ 220.995340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 220.995340][ T254] [ 220.997055][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 220.997055][ T254] neigh_parms_alloc+0x1e5/0x510 [ 220.997055][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 220.997055][ T254] ipv6_find_idev+0x102/0x170 [ 220.997055][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 220.997055][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 220.997055][ T254] netlink_rcv_skb+0x130/0x360 [ 220.997055][ T254] netlink_unicast+0x449/0x710 [ 220.997055][ T254] netlink_sendmsg+0x723/0xbe0 [ 220.997055][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 220.997055][ T254] ___sys_sendmsg+0xee/0x170 [ 220.997055][ T254] __sys_sendmsg+0xcd/0x170 [ 220.997055][ T254] do_syscall_64+0xc6/0x1e0 [ 220.997055][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 220.997055][ T254] [ 231.031853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 231.032341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.032341][ T254] dst_init+0x84/0x4a0 [ 231.032341][ T254] dst_alloc+0x97/0x150 [ 231.032341][ T254] ip6_dst_alloc+0x23/0x90 [ 231.032341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 231.032341][ T254] ip6_pol_route+0x56f/0x840 [ 231.032341][ T254] fib6_rule_lookup+0x334/0x630 [ 231.032341][ T254] ip6_route_output_flags+0x259/0x480 [ 231.032341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 231.032341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 231.032341][ T254] netlink_rcv_skb+0x130/0x360 [ 231.032341][ T254] netlink_unicast+0x449/0x710 [ 231.032341][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.032341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.032341][ T254] ___sys_sendmsg+0xee/0x170 [ 231.032341][ T254] __sys_sendmsg+0xcd/0x170 [ 231.032341][ T254] do_syscall_64+0xc6/0x1e0 [ 231.032341][ T254] [ 231.034551][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.034551][ T254] netdev_get_by_index+0x5e/0x80 [ 231.034551][ T254] fib6_nh_init+0x3d8/0x1580 [ 231.034551][ T254] ip6_route_info_create+0xf18/0x17d0 [ 231.034551][ T254] addrconf_f6i_alloc+0x265/0x560 [ 231.034551][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 231.034551][ T254] addrconf_join_anycast+0x1c0/0x220 [ 231.034551][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 231.034551][ T254] addrconf_dad_completed+0x12b/0xe20 [ 231.034551][ T254] addrconf_dad_begin+0x310/0x670 [ 231.034551][ T254] addrconf_dad_work+0x10b/0xab0 [ 231.034551][ T254] process_one_work+0x84d/0x18a0 [ 231.034551][ T254] worker_thread+0x587/0xd30 [ 231.034551][ T254] kthread+0x28a/0x350 [ 231.034551][ T254] ret_from_fork+0x31/0x70 [ 231.034551][ T254] ret_from_fork_asm+0x1a/0x30 [ 231.034551][ T254] [ 231.036737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.036737][ T254] netdev_get_by_index+0x5e/0x80 [ 231.036737][ T254] fib6_nh_init+0x3d8/0x1580 [ 231.036737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 231.036737][ T254] ip6_route_add+0x1c/0x140 [ 231.036737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 231.036737][ T254] inet6_addr_add+0x4f8/0xa40 [ 231.036737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 231.036737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 231.036737][ T254] netlink_rcv_skb+0x130/0x360 [ 231.036737][ T254] netlink_unicast+0x449/0x710 [ 231.036737][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.036737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.036737][ T254] ___sys_sendmsg+0xee/0x170 [ 231.036737][ T254] __sys_sendmsg+0xcd/0x170 [ 231.036737][ T254] do_syscall_64+0xc6/0x1e0 [ 231.036737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 231.036737][ T254] [ 231.038950][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.038950][ T254] netdev_get_by_index+0x5e/0x80 [ 231.038950][ T254] fib6_nh_init+0x3d8/0x1580 [ 231.038950][ T254] ip6_route_info_create+0xf18/0x17d0 [ 231.038950][ T254] addrconf_f6i_alloc+0x315/0x560 [ 231.038950][ T254] ipv6_add_addr+0x411/0x2000 [ 231.038950][ T254] inet6_addr_add+0x30e/0xa40 [ 231.038950][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 231.038950][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 231.038950][ T254] netlink_rcv_skb+0x130/0x360 [ 231.038950][ T254] netlink_unicast+0x449/0x710 [ 231.038950][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.038950][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.038950][ T254] ___sys_sendmsg+0xee/0x170 [ 231.038950][ T254] __sys_sendmsg+0xcd/0x170 [ 231.038950][ T254] do_syscall_64+0xc6/0x1e0 [ 231.038950][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 231.038950][ T254] [ 231.041198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.041198][ T254] netdev_get_by_index+0x5e/0x80 [ 231.041198][ T254] fib6_nh_init+0x3d8/0x1580 [ 231.041198][ T254] ip6_route_info_create+0xf18/0x17d0 [ 231.041198][ T254] ip6_route_add+0x1c/0x140 [ 231.041198][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 231.041198][ T254] addrconf_add_dev+0xe2/0x170 [ 231.041198][ T254] inet6_addr_add+0x12f/0xa40 [ 231.041198][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 231.041198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 231.041198][ T254] netlink_rcv_skb+0x130/0x360 [ 231.041198][ T254] netlink_unicast+0x449/0x710 [ 231.041198][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.041198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.041198][ T254] ___sys_sendmsg+0xee/0x170 [ 231.041198][ T254] __sys_sendmsg+0xcd/0x170 [ 231.041198][ T254] do_syscall_64+0xc6/0x1e0 [ 231.041198][ T254] [ 231.043383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.043383][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 231.043383][ T254] ipv6_find_idev+0x102/0x170 [ 231.043383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 231.043383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 231.043383][ T254] netlink_rcv_skb+0x130/0x360 [ 231.043383][ T254] netlink_unicast+0x449/0x710 [ 231.043383][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.043383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.043383][ T254] ___sys_sendmsg+0xee/0x170 [ 231.043383][ T254] __sys_sendmsg+0xcd/0x170 [ 231.043383][ T254] do_syscall_64+0xc6/0x1e0 [ 231.043383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 231.043383][ T254] [ 231.045053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 231.045053][ T254] neigh_parms_alloc+0x1e5/0x510 [ 231.045053][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 231.045053][ T254] ipv6_find_idev+0x102/0x170 [ 231.045053][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 231.045053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 231.045053][ T254] netlink_rcv_skb+0x130/0x360 [ 231.045053][ T254] netlink_unicast+0x449/0x710 [ 231.045053][ T254] netlink_sendmsg+0x723/0xbe0 [ 231.045053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 231.045053][ T254] ___sys_sendmsg+0xee/0x170 [ 231.045053][ T254] __sys_sendmsg+0xcd/0x170 [ 231.045053][ T254] do_syscall_64+0xc6/0x1e0 [ 231.045053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 231.045053][ T254] [ 241.079936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 241.081086][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.081086][ T254] dst_init+0x84/0x4a0 [ 241.081086][ T254] dst_alloc+0x97/0x150 [ 241.081086][ T254] ip6_dst_alloc+0x23/0x90 [ 241.081086][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 241.081086][ T254] ip6_pol_route+0x56f/0x840 [ 241.081086][ T254] fib6_rule_lookup+0x334/0x630 [ 241.081086][ T254] ip6_route_output_flags+0x259/0x480 [ 241.081086][ T254] inet6_rtm_getroute+0x980/0xf70 [ 241.081086][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 241.081086][ T254] netlink_rcv_skb+0x130/0x360 [ 241.081086][ T254] netlink_unicast+0x449/0x710 [ 241.081086][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.081086][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.081086][ T254] ___sys_sendmsg+0xee/0x170 [ 241.081086][ T254] __sys_sendmsg+0xcd/0x170 [ 241.081086][ T254] do_syscall_64+0xc6/0x1e0 [ 241.081086][ T254] [ 241.083352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.083352][ T254] netdev_get_by_index+0x5e/0x80 [ 241.083352][ T254] fib6_nh_init+0x3d8/0x1580 [ 241.083352][ T254] ip6_route_info_create+0xf18/0x17d0 [ 241.083352][ T254] addrconf_f6i_alloc+0x265/0x560 [ 241.083352][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 241.083352][ T254] addrconf_join_anycast+0x1c0/0x220 [ 241.083352][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 241.083352][ T254] addrconf_dad_completed+0x12b/0xe20 [ 241.083352][ T254] addrconf_dad_begin+0x310/0x670 [ 241.083352][ T254] addrconf_dad_work+0x10b/0xab0 [ 241.083352][ T254] process_one_work+0x84d/0x18a0 [ 241.083352][ T254] worker_thread+0x587/0xd30 [ 241.083352][ T254] kthread+0x28a/0x350 [ 241.083352][ T254] ret_from_fork+0x31/0x70 [ 241.083352][ T254] ret_from_fork_asm+0x1a/0x30 [ 241.083352][ T254] [ 241.085472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.085472][ T254] netdev_get_by_index+0x5e/0x80 [ 241.085472][ T254] fib6_nh_init+0x3d8/0x1580 [ 241.085472][ T254] ip6_route_info_create+0xf18/0x17d0 [ 241.085472][ T254] ip6_route_add+0x1c/0x140 [ 241.085472][ T254] addrconf_prefix_route+0x2a6/0x430 [ 241.085472][ T254] inet6_addr_add+0x4f8/0xa40 [ 241.085472][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 241.085472][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 241.085472][ T254] netlink_rcv_skb+0x130/0x360 [ 241.085472][ T254] netlink_unicast+0x449/0x710 [ 241.085472][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.085472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.085472][ T254] ___sys_sendmsg+0xee/0x170 [ 241.085472][ T254] __sys_sendmsg+0xcd/0x170 [ 241.085472][ T254] do_syscall_64+0xc6/0x1e0 [ 241.085472][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 241.085472][ T254] [ 241.087688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.087688][ T254] netdev_get_by_index+0x5e/0x80 [ 241.087688][ T254] fib6_nh_init+0x3d8/0x1580 [ 241.087688][ T254] ip6_route_info_create+0xf18/0x17d0 [ 241.087688][ T254] addrconf_f6i_alloc+0x315/0x560 [ 241.087688][ T254] ipv6_add_addr+0x411/0x2000 [ 241.087688][ T254] inet6_addr_add+0x30e/0xa40 [ 241.087688][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 241.087688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 241.087688][ T254] netlink_rcv_skb+0x130/0x360 [ 241.087688][ T254] netlink_unicast+0x449/0x710 [ 241.087688][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.087688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.087688][ T254] ___sys_sendmsg+0xee/0x170 [ 241.087688][ T254] __sys_sendmsg+0xcd/0x170 [ 241.087688][ T254] do_syscall_64+0xc6/0x1e0 [ 241.087688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 241.087688][ T254] [ 241.089859][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.089859][ T254] netdev_get_by_index+0x5e/0x80 [ 241.089859][ T254] fib6_nh_init+0x3d8/0x1580 [ 241.089859][ T254] ip6_route_info_create+0xf18/0x17d0 [ 241.089859][ T254] ip6_route_add+0x1c/0x140 [ 241.089859][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 241.089859][ T254] addrconf_add_dev+0xe2/0x170 [ 241.089859][ T254] inet6_addr_add+0x12f/0xa40 [ 241.089859][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 241.089859][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 241.089859][ T254] netlink_rcv_skb+0x130/0x360 [ 241.089859][ T254] netlink_unicast+0x449/0x710 [ 241.089859][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.089859][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.089859][ T254] ___sys_sendmsg+0xee/0x170 [ 241.089859][ T254] __sys_sendmsg+0xcd/0x170 [ 241.089859][ T254] do_syscall_64+0xc6/0x1e0 [ 241.089859][ T254] [ 241.091996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.091996][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 241.091996][ T254] ipv6_find_idev+0x102/0x170 [ 241.091996][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 241.091996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 241.091996][ T254] netlink_rcv_skb+0x130/0x360 [ 241.091996][ T254] netlink_unicast+0x449/0x710 [ 241.091996][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.091996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.091996][ T254] ___sys_sendmsg+0xee/0x170 [ 241.091996][ T254] __sys_sendmsg+0xcd/0x170 [ 241.091996][ T254] do_syscall_64+0xc6/0x1e0 [ 241.091996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 241.091996][ T254] [ 241.093666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 241.093666][ T254] neigh_parms_alloc+0x1e5/0x510 [ 241.093666][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 241.093666][ T254] ipv6_find_idev+0x102/0x170 [ 241.093666][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 241.093666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 241.093666][ T254] netlink_rcv_skb+0x130/0x360 [ 241.093666][ T254] netlink_unicast+0x449/0x710 [ 241.093666][ T254] netlink_sendmsg+0x723/0xbe0 [ 241.093666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 241.093666][ T254] ___sys_sendmsg+0xee/0x170 [ 241.093666][ T254] __sys_sendmsg+0xcd/0x170 [ 241.093666][ T254] do_syscall_64+0xc6/0x1e0 [ 241.093666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 241.093666][ T254] [ 251.167916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 251.168416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.168416][ T254] dst_init+0x84/0x4a0 [ 251.168416][ T254] dst_alloc+0x97/0x150 [ 251.168416][ T254] ip6_dst_alloc+0x23/0x90 [ 251.168416][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 251.168416][ T254] ip6_pol_route+0x56f/0x840 [ 251.168416][ T254] fib6_rule_lookup+0x334/0x630 [ 251.168416][ T254] ip6_route_output_flags+0x259/0x480 [ 251.168416][ T254] inet6_rtm_getroute+0x980/0xf70 [ 251.168416][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 251.168416][ T254] netlink_rcv_skb+0x130/0x360 [ 251.168416][ T254] netlink_unicast+0x449/0x710 [ 251.168416][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.168416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.168416][ T254] ___sys_sendmsg+0xee/0x170 [ 251.168416][ T254] __sys_sendmsg+0xcd/0x170 [ 251.168416][ T254] do_syscall_64+0xc6/0x1e0 [ 251.168416][ T254] [ 251.170554][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.170554][ T254] netdev_get_by_index+0x5e/0x80 [ 251.170554][ T254] fib6_nh_init+0x3d8/0x1580 [ 251.170554][ T254] ip6_route_info_create+0xf18/0x17d0 [ 251.170554][ T254] addrconf_f6i_alloc+0x265/0x560 [ 251.170554][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 251.170554][ T254] addrconf_join_anycast+0x1c0/0x220 [ 251.170554][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 251.170554][ T254] addrconf_dad_completed+0x12b/0xe20 [ 251.170554][ T254] addrconf_dad_begin+0x310/0x670 [ 251.170554][ T254] addrconf_dad_work+0x10b/0xab0 [ 251.170554][ T254] process_one_work+0x84d/0x18a0 [ 251.170554][ T254] worker_thread+0x587/0xd30 [ 251.170554][ T254] kthread+0x28a/0x350 [ 251.170554][ T254] ret_from_fork+0x31/0x70 [ 251.170554][ T254] ret_from_fork_asm+0x1a/0x30 [ 251.170554][ T254] [ 251.172643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.172643][ T254] netdev_get_by_index+0x5e/0x80 [ 251.172643][ T254] fib6_nh_init+0x3d8/0x1580 [ 251.172643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 251.172643][ T254] ip6_route_add+0x1c/0x140 [ 251.172643][ T254] addrconf_prefix_route+0x2a6/0x430 [ 251.172643][ T254] inet6_addr_add+0x4f8/0xa40 [ 251.172643][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 251.172643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 251.172643][ T254] netlink_rcv_skb+0x130/0x360 [ 251.172643][ T254] netlink_unicast+0x449/0x710 [ 251.172643][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.172643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.172643][ T254] ___sys_sendmsg+0xee/0x170 [ 251.172643][ T254] __sys_sendmsg+0xcd/0x170 [ 251.172643][ T254] do_syscall_64+0xc6/0x1e0 [ 251.172643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 251.172643][ T254] [ 251.174851][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.174851][ T254] netdev_get_by_index+0x5e/0x80 [ 251.174851][ T254] fib6_nh_init+0x3d8/0x1580 [ 251.174851][ T254] ip6_route_info_create+0xf18/0x17d0 [ 251.174851][ T254] addrconf_f6i_alloc+0x315/0x560 [ 251.174851][ T254] ipv6_add_addr+0x411/0x2000 [ 251.174851][ T254] inet6_addr_add+0x30e/0xa40 [ 251.174851][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 251.174851][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 251.174851][ T254] netlink_rcv_skb+0x130/0x360 [ 251.174851][ T254] netlink_unicast+0x449/0x710 [ 251.174851][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.174851][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.174851][ T254] ___sys_sendmsg+0xee/0x170 [ 251.174851][ T254] __sys_sendmsg+0xcd/0x170 [ 251.174851][ T254] do_syscall_64+0xc6/0x1e0 [ 251.174851][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 251.174851][ T254] [ 251.177119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.177119][ T254] netdev_get_by_index+0x5e/0x80 [ 251.177119][ T254] fib6_nh_init+0x3d8/0x1580 [ 251.177119][ T254] ip6_route_info_create+0xf18/0x17d0 [ 251.177119][ T254] ip6_route_add+0x1c/0x140 [ 251.177119][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 251.177119][ T254] addrconf_add_dev+0xe2/0x170 [ 251.177119][ T254] inet6_addr_add+0x12f/0xa40 [ 251.177119][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 251.177119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 251.177119][ T254] netlink_rcv_skb+0x130/0x360 [ 251.177119][ T254] netlink_unicast+0x449/0x710 [ 251.177119][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.177119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.177119][ T254] ___sys_sendmsg+0xee/0x170 [ 251.177119][ T254] __sys_sendmsg+0xcd/0x170 [ 251.177119][ T254] do_syscall_64+0xc6/0x1e0 [ 251.177119][ T254] [ 251.179274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.179274][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 251.179274][ T254] ipv6_find_idev+0x102/0x170 [ 251.179274][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 251.179274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 251.179274][ T254] netlink_rcv_skb+0x130/0x360 [ 251.179274][ T254] netlink_unicast+0x449/0x710 [ 251.179274][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.179274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.179274][ T254] ___sys_sendmsg+0xee/0x170 [ 251.179274][ T254] __sys_sendmsg+0xcd/0x170 [ 251.179274][ T254] do_syscall_64+0xc6/0x1e0 [ 251.179274][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 251.179274][ T254] [ 251.180950][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 251.180950][ T254] neigh_parms_alloc+0x1e5/0x510 [ 251.180950][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 251.180950][ T254] ipv6_find_idev+0x102/0x170 [ 251.180950][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 251.180950][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 251.180950][ T254] netlink_rcv_skb+0x130/0x360 [ 251.180950][ T254] netlink_unicast+0x449/0x710 [ 251.180950][ T254] netlink_sendmsg+0x723/0xbe0 [ 251.180950][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 251.180950][ T254] ___sys_sendmsg+0xee/0x170 [ 251.180950][ T254] __sys_sendmsg+0xcd/0x170 [ 251.180950][ T254] do_syscall_64+0xc6/0x1e0 [ 251.180950][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 251.180950][ T254] [ 261.431917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 261.432632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.432632][ T254] dst_init+0x84/0x4a0 [ 261.432632][ T254] dst_alloc+0x97/0x150 [ 261.432632][ T254] ip6_dst_alloc+0x23/0x90 [ 261.432632][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 261.432632][ T254] ip6_pol_route+0x56f/0x840 [ 261.432632][ T254] fib6_rule_lookup+0x334/0x630 [ 261.432632][ T254] ip6_route_output_flags+0x259/0x480 [ 261.432632][ T254] inet6_rtm_getroute+0x980/0xf70 [ 261.432632][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 261.432632][ T254] netlink_rcv_skb+0x130/0x360 [ 261.432632][ T254] netlink_unicast+0x449/0x710 [ 261.432632][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.432632][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.432632][ T254] ___sys_sendmsg+0xee/0x170 [ 261.432632][ T254] __sys_sendmsg+0xcd/0x170 [ 261.432632][ T254] do_syscall_64+0xc6/0x1e0 [ 261.432632][ T254] [ 261.434849][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.434849][ T254] netdev_get_by_index+0x5e/0x80 [ 261.434849][ T254] fib6_nh_init+0x3d8/0x1580 [ 261.434849][ T254] ip6_route_info_create+0xf18/0x17d0 [ 261.434849][ T254] addrconf_f6i_alloc+0x265/0x560 [ 261.434849][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 261.434849][ T254] addrconf_join_anycast+0x1c0/0x220 [ 261.434849][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 261.434849][ T254] addrconf_dad_completed+0x12b/0xe20 [ 261.434849][ T254] addrconf_dad_begin+0x310/0x670 [ 261.434849][ T254] addrconf_dad_work+0x10b/0xab0 [ 261.434849][ T254] process_one_work+0x84d/0x18a0 [ 261.434849][ T254] worker_thread+0x587/0xd30 [ 261.434849][ T254] kthread+0x28a/0x350 [ 261.434849][ T254] ret_from_fork+0x31/0x70 [ 261.434849][ T254] ret_from_fork_asm+0x1a/0x30 [ 261.434849][ T254] [ 261.437035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.437035][ T254] netdev_get_by_index+0x5e/0x80 [ 261.437035][ T254] fib6_nh_init+0x3d8/0x1580 [ 261.437035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 261.437035][ T254] ip6_route_add+0x1c/0x140 [ 261.437035][ T254] addrconf_prefix_route+0x2a6/0x430 [ 261.437035][ T254] inet6_addr_add+0x4f8/0xa40 [ 261.437035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 261.437035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 261.437035][ T254] netlink_rcv_skb+0x130/0x360 [ 261.437035][ T254] netlink_unicast+0x449/0x710 [ 261.437035][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.437035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.437035][ T254] ___sys_sendmsg+0xee/0x170 [ 261.437035][ T254] __sys_sendmsg+0xcd/0x170 [ 261.437035][ T254] do_syscall_64+0xc6/0x1e0 [ 261.437035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 261.437035][ T254] [ 261.439280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.439280][ T254] netdev_get_by_index+0x5e/0x80 [ 261.439280][ T254] fib6_nh_init+0x3d8/0x1580 [ 261.439280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 261.439280][ T254] addrconf_f6i_alloc+0x315/0x560 [ 261.439280][ T254] ipv6_add_addr+0x411/0x2000 [ 261.439280][ T254] inet6_addr_add+0x30e/0xa40 [ 261.439280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 261.439280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 261.439280][ T254] netlink_rcv_skb+0x130/0x360 [ 261.439280][ T254] netlink_unicast+0x449/0x710 [ 261.439280][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.439280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.439280][ T254] ___sys_sendmsg+0xee/0x170 [ 261.439280][ T254] __sys_sendmsg+0xcd/0x170 [ 261.439280][ T254] do_syscall_64+0xc6/0x1e0 [ 261.439280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 261.439280][ T254] [ 261.441455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.441455][ T254] netdev_get_by_index+0x5e/0x80 [ 261.441455][ T254] fib6_nh_init+0x3d8/0x1580 [ 261.441455][ T254] ip6_route_info_create+0xf18/0x17d0 [ 261.441455][ T254] ip6_route_add+0x1c/0x140 [ 261.441455][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 261.441455][ T254] addrconf_add_dev+0xe2/0x170 [ 261.441455][ T254] inet6_addr_add+0x12f/0xa40 [ 261.441455][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 261.441455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 261.441455][ T254] netlink_rcv_skb+0x130/0x360 [ 261.441455][ T254] netlink_unicast+0x449/0x710 [ 261.441455][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.441455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.441455][ T254] ___sys_sendmsg+0xee/0x170 [ 261.441455][ T254] __sys_sendmsg+0xcd/0x170 [ 261.441455][ T254] do_syscall_64+0xc6/0x1e0 [ 261.441455][ T254] [ 261.443586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.443586][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 261.443586][ T254] ipv6_find_idev+0x102/0x170 [ 261.443586][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 261.443586][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 261.443586][ T254] netlink_rcv_skb+0x130/0x360 [ 261.443586][ T254] netlink_unicast+0x449/0x710 [ 261.443586][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.443586][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.443586][ T254] ___sys_sendmsg+0xee/0x170 [ 261.443586][ T254] __sys_sendmsg+0xcd/0x170 [ 261.443586][ T254] do_syscall_64+0xc6/0x1e0 [ 261.443586][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 261.443586][ T254] [ 261.445289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 261.445289][ T254] neigh_parms_alloc+0x1e5/0x510 [ 261.445289][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 261.445289][ T254] ipv6_find_idev+0x102/0x170 [ 261.445289][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 261.445289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 261.445289][ T254] netlink_rcv_skb+0x130/0x360 [ 261.445289][ T254] netlink_unicast+0x449/0x710 [ 261.445289][ T254] netlink_sendmsg+0x723/0xbe0 [ 261.445289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 261.445289][ T254] ___sys_sendmsg+0xee/0x170 [ 261.445289][ T254] __sys_sendmsg+0xcd/0x170 [ 261.445289][ T254] do_syscall_64+0xc6/0x1e0 [ 261.445289][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 261.445289][ T254] [ 271.695962][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 271.696762][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.696762][ T254] dst_init+0x84/0x4a0 [ 271.696762][ T254] dst_alloc+0x97/0x150 [ 271.696762][ T254] ip6_dst_alloc+0x23/0x90 [ 271.696762][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 271.696762][ T254] ip6_pol_route+0x56f/0x840 [ 271.696762][ T254] fib6_rule_lookup+0x334/0x630 [ 271.696762][ T254] ip6_route_output_flags+0x259/0x480 [ 271.696762][ T254] inet6_rtm_getroute+0x980/0xf70 [ 271.696762][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 271.696762][ T254] netlink_rcv_skb+0x130/0x360 [ 271.696762][ T254] netlink_unicast+0x449/0x710 [ 271.696762][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.696762][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.696762][ T254] ___sys_sendmsg+0xee/0x170 [ 271.696762][ T254] __sys_sendmsg+0xcd/0x170 [ 271.696762][ T254] do_syscall_64+0xc6/0x1e0 [ 271.696762][ T254] [ 271.700695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.700695][ T254] netdev_get_by_index+0x5e/0x80 [ 271.700695][ T254] fib6_nh_init+0x3d8/0x1580 [ 271.700695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 271.700695][ T254] addrconf_f6i_alloc+0x265/0x560 [ 271.700695][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 271.700695][ T254] addrconf_join_anycast+0x1c0/0x220 [ 271.700695][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 271.700695][ T254] addrconf_dad_completed+0x12b/0xe20 [ 271.700695][ T254] addrconf_dad_begin+0x310/0x670 [ 271.700695][ T254] addrconf_dad_work+0x10b/0xab0 [ 271.700695][ T254] process_one_work+0x84d/0x18a0 [ 271.700695][ T254] worker_thread+0x587/0xd30 [ 271.700695][ T254] kthread+0x28a/0x350 [ 271.700695][ T254] ret_from_fork+0x31/0x70 [ 271.700695][ T254] ret_from_fork_asm+0x1a/0x30 [ 271.700695][ T254] [ 271.704562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.704562][ T254] netdev_get_by_index+0x5e/0x80 [ 271.704562][ T254] fib6_nh_init+0x3d8/0x1580 [ 271.704562][ T254] ip6_route_info_create+0xf18/0x17d0 [ 271.704562][ T254] ip6_route_add+0x1c/0x140 [ 271.704562][ T254] addrconf_prefix_route+0x2a6/0x430 [ 271.704562][ T254] inet6_addr_add+0x4f8/0xa40 [ 271.704562][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 271.704562][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 271.704562][ T254] netlink_rcv_skb+0x130/0x360 [ 271.704562][ T254] netlink_unicast+0x449/0x710 [ 271.704562][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.704562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.704562][ T254] ___sys_sendmsg+0xee/0x170 [ 271.704562][ T254] __sys_sendmsg+0xcd/0x170 [ 271.704562][ T254] do_syscall_64+0xc6/0x1e0 [ 271.704562][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 271.704562][ T254] [ 271.708578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.708578][ T254] netdev_get_by_index+0x5e/0x80 [ 271.708578][ T254] fib6_nh_init+0x3d8/0x1580 [ 271.708578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 271.708578][ T254] addrconf_f6i_alloc+0x315/0x560 [ 271.708578][ T254] ipv6_add_addr+0x411/0x2000 [ 271.708578][ T254] inet6_addr_add+0x30e/0xa40 [ 271.708578][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 271.708578][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 271.708578][ T254] netlink_rcv_skb+0x130/0x360 [ 271.708578][ T254] netlink_unicast+0x449/0x710 [ 271.708578][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.708578][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.708578][ T254] ___sys_sendmsg+0xee/0x170 [ 271.708578][ T254] __sys_sendmsg+0xcd/0x170 [ 271.708578][ T254] do_syscall_64+0xc6/0x1e0 [ 271.708578][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 271.708578][ T254] [ 271.712525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.712525][ T254] netdev_get_by_index+0x5e/0x80 [ 271.712525][ T254] fib6_nh_init+0x3d8/0x1580 [ 271.712525][ T254] ip6_route_info_create+0xf18/0x17d0 [ 271.712525][ T254] ip6_route_add+0x1c/0x140 [ 271.712525][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 271.712525][ T254] addrconf_add_dev+0xe2/0x170 [ 271.712525][ T254] inet6_addr_add+0x12f/0xa40 [ 271.712525][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 271.712525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 271.712525][ T254] netlink_rcv_skb+0x130/0x360 [ 271.712525][ T254] netlink_unicast+0x449/0x710 [ 271.712525][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.712525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.712525][ T254] ___sys_sendmsg+0xee/0x170 [ 271.712525][ T254] __sys_sendmsg+0xcd/0x170 [ 271.712525][ T254] do_syscall_64+0xc6/0x1e0 [ 271.712525][ T254] [ 271.716388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.716388][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 271.716388][ T254] ipv6_find_idev+0x102/0x170 [ 271.716388][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 271.716388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 271.716388][ T254] netlink_rcv_skb+0x130/0x360 [ 271.716388][ T254] netlink_unicast+0x449/0x710 [ 271.716388][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.716388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.716388][ T254] ___sys_sendmsg+0xee/0x170 [ 271.716388][ T254] __sys_sendmsg+0xcd/0x170 [ 271.716388][ T254] do_syscall_64+0xc6/0x1e0 [ 271.716388][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 271.716388][ T254] [ 271.719265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 271.719265][ T254] neigh_parms_alloc+0x1e5/0x510 [ 271.719265][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 271.719265][ T254] ipv6_find_idev+0x102/0x170 [ 271.719265][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 271.719265][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 271.719265][ T254] netlink_rcv_skb+0x130/0x360 [ 271.719265][ T254] netlink_unicast+0x449/0x710 [ 271.719265][ T254] netlink_sendmsg+0x723/0xbe0 [ 271.719265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 271.719265][ T254] ___sys_sendmsg+0xee/0x170 [ 271.719265][ T254] __sys_sendmsg+0xcd/0x170 [ 271.719265][ T254] do_syscall_64+0xc6/0x1e0 [ 271.719265][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 271.719265][ T254] [ 281.975844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 281.976338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.976338][ T254] dst_init+0x84/0x4a0 [ 281.976338][ T254] dst_alloc+0x97/0x150 [ 281.976338][ T254] ip6_dst_alloc+0x23/0x90 [ 281.976338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 281.976338][ T254] ip6_pol_route+0x56f/0x840 [ 281.976338][ T254] fib6_rule_lookup+0x334/0x630 [ 281.976338][ T254] ip6_route_output_flags+0x259/0x480 [ 281.976338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 281.976338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 281.976338][ T254] netlink_rcv_skb+0x130/0x360 [ 281.976338][ T254] netlink_unicast+0x449/0x710 [ 281.976338][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.976338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.976338][ T254] ___sys_sendmsg+0xee/0x170 [ 281.976338][ T254] __sys_sendmsg+0xcd/0x170 [ 281.976338][ T254] do_syscall_64+0xc6/0x1e0 [ 281.976338][ T254] [ 281.978544][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.978544][ T254] netdev_get_by_index+0x5e/0x80 [ 281.978544][ T254] fib6_nh_init+0x3d8/0x1580 [ 281.978544][ T254] ip6_route_info_create+0xf18/0x17d0 [ 281.978544][ T254] addrconf_f6i_alloc+0x265/0x560 [ 281.978544][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 281.978544][ T254] addrconf_join_anycast+0x1c0/0x220 [ 281.978544][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 281.978544][ T254] addrconf_dad_completed+0x12b/0xe20 [ 281.978544][ T254] addrconf_dad_begin+0x310/0x670 [ 281.978544][ T254] addrconf_dad_work+0x10b/0xab0 [ 281.978544][ T254] process_one_work+0x84d/0x18a0 [ 281.978544][ T254] worker_thread+0x587/0xd30 [ 281.978544][ T254] kthread+0x28a/0x350 [ 281.978544][ T254] ret_from_fork+0x31/0x70 [ 281.978544][ T254] ret_from_fork_asm+0x1a/0x30 [ 281.978544][ T254] [ 281.980684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.980684][ T254] netdev_get_by_index+0x5e/0x80 [ 281.980684][ T254] fib6_nh_init+0x3d8/0x1580 [ 281.980684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 281.980684][ T254] ip6_route_add+0x1c/0x140 [ 281.980684][ T254] addrconf_prefix_route+0x2a6/0x430 [ 281.980684][ T254] inet6_addr_add+0x4f8/0xa40 [ 281.980684][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 281.980684][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 281.980684][ T254] netlink_rcv_skb+0x130/0x360 [ 281.980684][ T254] netlink_unicast+0x449/0x710 [ 281.980684][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.980684][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.980684][ T254] ___sys_sendmsg+0xee/0x170 [ 281.980684][ T254] __sys_sendmsg+0xcd/0x170 [ 281.980684][ T254] do_syscall_64+0xc6/0x1e0 [ 281.980684][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 281.980684][ T254] [ 281.982898][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.982898][ T254] netdev_get_by_index+0x5e/0x80 [ 281.982898][ T254] fib6_nh_init+0x3d8/0x1580 [ 281.982898][ T254] ip6_route_info_create+0xf18/0x17d0 [ 281.982898][ T254] addrconf_f6i_alloc+0x315/0x560 [ 281.982898][ T254] ipv6_add_addr+0x411/0x2000 [ 281.982898][ T254] inet6_addr_add+0x30e/0xa40 [ 281.982898][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 281.982898][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 281.982898][ T254] netlink_rcv_skb+0x130/0x360 [ 281.982898][ T254] netlink_unicast+0x449/0x710 [ 281.982898][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.982898][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.982898][ T254] ___sys_sendmsg+0xee/0x170 [ 281.982898][ T254] __sys_sendmsg+0xcd/0x170 [ 281.982898][ T254] do_syscall_64+0xc6/0x1e0 [ 281.982898][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 281.982898][ T254] [ 281.985149][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.985149][ T254] netdev_get_by_index+0x5e/0x80 [ 281.985149][ T254] fib6_nh_init+0x3d8/0x1580 [ 281.985149][ T254] ip6_route_info_create+0xf18/0x17d0 [ 281.985149][ T254] ip6_route_add+0x1c/0x140 [ 281.985149][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 281.985149][ T254] addrconf_add_dev+0xe2/0x170 [ 281.985149][ T254] inet6_addr_add+0x12f/0xa40 [ 281.985149][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 281.985149][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 281.985149][ T254] netlink_rcv_skb+0x130/0x360 [ 281.985149][ T254] netlink_unicast+0x449/0x710 [ 281.985149][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.985149][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.985149][ T254] ___sys_sendmsg+0xee/0x170 [ 281.985149][ T254] __sys_sendmsg+0xcd/0x170 [ 281.985149][ T254] do_syscall_64+0xc6/0x1e0 [ 281.985149][ T254] [ 281.987436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.987436][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 281.987436][ T254] ipv6_find_idev+0x102/0x170 [ 281.987436][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 281.987436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 281.987436][ T254] netlink_rcv_skb+0x130/0x360 [ 281.987436][ T254] netlink_unicast+0x449/0x710 [ 281.987436][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.987436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.987436][ T254] ___sys_sendmsg+0xee/0x170 [ 281.987436][ T254] __sys_sendmsg+0xcd/0x170 [ 281.987436][ T254] do_syscall_64+0xc6/0x1e0 [ 281.987436][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 281.987436][ T254] [ 281.989149][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 281.989149][ T254] neigh_parms_alloc+0x1e5/0x510 [ 281.989149][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 281.989149][ T254] ipv6_find_idev+0x102/0x170 [ 281.989149][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 281.989149][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 281.989149][ T254] netlink_rcv_skb+0x130/0x360 [ 281.989149][ T254] netlink_unicast+0x449/0x710 [ 281.989149][ T254] netlink_sendmsg+0x723/0xbe0 [ 281.989149][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 281.989149][ T254] ___sys_sendmsg+0xee/0x170 [ 281.989149][ T254] __sys_sendmsg+0xcd/0x170 [ 281.989149][ T254] do_syscall_64+0xc6/0x1e0 [ 281.989149][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 281.989149][ T254] [ 292.239935][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 292.240491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.240491][ T254] dst_init+0x84/0x4a0 [ 292.240491][ T254] dst_alloc+0x97/0x150 [ 292.240491][ T254] ip6_dst_alloc+0x23/0x90 [ 292.240491][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 292.240491][ T254] ip6_pol_route+0x56f/0x840 [ 292.240491][ T254] fib6_rule_lookup+0x334/0x630 [ 292.240491][ T254] ip6_route_output_flags+0x259/0x480 [ 292.240491][ T254] inet6_rtm_getroute+0x980/0xf70 [ 292.240491][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 292.240491][ T254] netlink_rcv_skb+0x130/0x360 [ 292.240491][ T254] netlink_unicast+0x449/0x710 [ 292.240491][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.240491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.240491][ T254] ___sys_sendmsg+0xee/0x170 [ 292.240491][ T254] __sys_sendmsg+0xcd/0x170 [ 292.240491][ T254] do_syscall_64+0xc6/0x1e0 [ 292.240491][ T254] [ 292.242898][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.242898][ T254] netdev_get_by_index+0x5e/0x80 [ 292.242898][ T254] fib6_nh_init+0x3d8/0x1580 [ 292.242898][ T254] ip6_route_info_create+0xf18/0x17d0 [ 292.242898][ T254] addrconf_f6i_alloc+0x265/0x560 [ 292.242898][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 292.242898][ T254] addrconf_join_anycast+0x1c0/0x220 [ 292.242898][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 292.242898][ T254] addrconf_dad_completed+0x12b/0xe20 [ 292.242898][ T254] addrconf_dad_begin+0x310/0x670 [ 292.242898][ T254] addrconf_dad_work+0x10b/0xab0 [ 292.242898][ T254] process_one_work+0x84d/0x18a0 [ 292.242898][ T254] worker_thread+0x587/0xd30 [ 292.242898][ T254] kthread+0x28a/0x350 [ 292.242898][ T254] ret_from_fork+0x31/0x70 [ 292.242898][ T254] ret_from_fork_asm+0x1a/0x30 [ 292.242898][ T254] [ 292.245221][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.245221][ T254] netdev_get_by_index+0x5e/0x80 [ 292.245221][ T254] fib6_nh_init+0x3d8/0x1580 [ 292.245221][ T254] ip6_route_info_create+0xf18/0x17d0 [ 292.245221][ T254] ip6_route_add+0x1c/0x140 [ 292.245221][ T254] addrconf_prefix_route+0x2a6/0x430 [ 292.245221][ T254] inet6_addr_add+0x4f8/0xa40 [ 292.245221][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 292.245221][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 292.245221][ T254] netlink_rcv_skb+0x130/0x360 [ 292.245221][ T254] netlink_unicast+0x449/0x710 [ 292.245221][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.245221][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.245221][ T254] ___sys_sendmsg+0xee/0x170 [ 292.245221][ T254] __sys_sendmsg+0xcd/0x170 [ 292.245221][ T254] do_syscall_64+0xc6/0x1e0 [ 292.245221][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 292.245221][ T254] [ 292.247674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.247674][ T254] netdev_get_by_index+0x5e/0x80 [ 292.247674][ T254] fib6_nh_init+0x3d8/0x1580 [ 292.247674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 292.247674][ T254] addrconf_f6i_alloc+0x315/0x560 [ 292.247674][ T254] ipv6_add_addr+0x411/0x2000 [ 292.247674][ T254] inet6_addr_add+0x30e/0xa40 [ 292.247674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 292.247674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 292.247674][ T254] netlink_rcv_skb+0x130/0x360 [ 292.247674][ T254] netlink_unicast+0x449/0x710 [ 292.247674][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.247674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.247674][ T254] ___sys_sendmsg+0xee/0x170 [ 292.247674][ T254] __sys_sendmsg+0xcd/0x170 [ 292.247674][ T254] do_syscall_64+0xc6/0x1e0 [ 292.247674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 292.247674][ T254] [ 292.250114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.250114][ T254] netdev_get_by_index+0x5e/0x80 [ 292.250114][ T254] fib6_nh_init+0x3d8/0x1580 [ 292.250114][ T254] ip6_route_info_create+0xf18/0x17d0 [ 292.250114][ T254] ip6_route_add+0x1c/0x140 [ 292.250114][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 292.250114][ T254] addrconf_add_dev+0xe2/0x170 [ 292.250114][ T254] inet6_addr_add+0x12f/0xa40 [ 292.250114][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 292.250114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 292.250114][ T254] netlink_rcv_skb+0x130/0x360 [ 292.250114][ T254] netlink_unicast+0x449/0x710 [ 292.250114][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.250114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.250114][ T254] ___sys_sendmsg+0xee/0x170 [ 292.250114][ T254] __sys_sendmsg+0xcd/0x170 [ 292.250114][ T254] do_syscall_64+0xc6/0x1e0 [ 292.250114][ T254] [ 292.252513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.252513][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 292.252513][ T254] ipv6_find_idev+0x102/0x170 [ 292.252513][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 292.252513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 292.252513][ T254] netlink_rcv_skb+0x130/0x360 [ 292.252513][ T254] netlink_unicast+0x449/0x710 [ 292.252513][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.252513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.252513][ T254] ___sys_sendmsg+0xee/0x170 [ 292.252513][ T254] __sys_sendmsg+0xcd/0x170 [ 292.252513][ T254] do_syscall_64+0xc6/0x1e0 [ 292.252513][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 292.252513][ T254] [ 292.254406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 292.254406][ T254] neigh_parms_alloc+0x1e5/0x510 [ 292.254406][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 292.254406][ T254] ipv6_find_idev+0x102/0x170 [ 292.254406][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 292.254406][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 292.254406][ T254] netlink_rcv_skb+0x130/0x360 [ 292.254406][ T254] netlink_unicast+0x449/0x710 [ 292.254406][ T254] netlink_sendmsg+0x723/0xbe0 [ 292.254406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 292.254406][ T254] ___sys_sendmsg+0xee/0x170 [ 292.254406][ T254] __sys_sendmsg+0xcd/0x170 [ 292.254406][ T254] do_syscall_64+0xc6/0x1e0 [ 292.254406][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 292.254406][ T254] [ 302.335920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 302.336419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.336419][ T254] dst_init+0x84/0x4a0 [ 302.336419][ T254] dst_alloc+0x97/0x150 [ 302.336419][ T254] ip6_dst_alloc+0x23/0x90 [ 302.336419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 302.336419][ T254] ip6_pol_route+0x56f/0x840 [ 302.336419][ T254] fib6_rule_lookup+0x334/0x630 [ 302.336419][ T254] ip6_route_output_flags+0x259/0x480 [ 302.336419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 302.336419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 302.336419][ T254] netlink_rcv_skb+0x130/0x360 [ 302.336419][ T254] netlink_unicast+0x449/0x710 [ 302.336419][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.336419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.336419][ T254] ___sys_sendmsg+0xee/0x170 [ 302.336419][ T254] __sys_sendmsg+0xcd/0x170 [ 302.336419][ T254] do_syscall_64+0xc6/0x1e0 [ 302.336419][ T254] [ 302.338839][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.338839][ T254] netdev_get_by_index+0x5e/0x80 [ 302.338839][ T254] fib6_nh_init+0x3d8/0x1580 [ 302.338839][ T254] ip6_route_info_create+0xf18/0x17d0 [ 302.338839][ T254] addrconf_f6i_alloc+0x265/0x560 [ 302.338839][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 302.338839][ T254] addrconf_join_anycast+0x1c0/0x220 [ 302.338839][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 302.338839][ T254] addrconf_dad_completed+0x12b/0xe20 [ 302.338839][ T254] addrconf_dad_begin+0x310/0x670 [ 302.338839][ T254] addrconf_dad_work+0x10b/0xab0 [ 302.338839][ T254] process_one_work+0x84d/0x18a0 [ 302.338839][ T254] worker_thread+0x587/0xd30 [ 302.338839][ T254] kthread+0x28a/0x350 [ 302.338839][ T254] ret_from_fork+0x31/0x70 [ 302.338839][ T254] ret_from_fork_asm+0x1a/0x30 [ 302.338839][ T254] [ 302.341188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.341188][ T254] netdev_get_by_index+0x5e/0x80 [ 302.341188][ T254] fib6_nh_init+0x3d8/0x1580 [ 302.341188][ T254] ip6_route_info_create+0xf18/0x17d0 [ 302.341188][ T254] ip6_route_add+0x1c/0x140 [ 302.341188][ T254] addrconf_prefix_route+0x2a6/0x430 [ 302.341188][ T254] inet6_addr_add+0x4f8/0xa40 [ 302.341188][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 302.341188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 302.341188][ T254] netlink_rcv_skb+0x130/0x360 [ 302.341188][ T254] netlink_unicast+0x449/0x710 [ 302.341188][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.341188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.341188][ T254] ___sys_sendmsg+0xee/0x170 [ 302.341188][ T254] __sys_sendmsg+0xcd/0x170 [ 302.341188][ T254] do_syscall_64+0xc6/0x1e0 [ 302.341188][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 302.341188][ T254] [ 302.343620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.343620][ T254] netdev_get_by_index+0x5e/0x80 [ 302.343620][ T254] fib6_nh_init+0x3d8/0x1580 [ 302.343620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 302.343620][ T254] addrconf_f6i_alloc+0x315/0x560 [ 302.343620][ T254] ipv6_add_addr+0x411/0x2000 [ 302.343620][ T254] inet6_addr_add+0x30e/0xa40 [ 302.343620][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 302.343620][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 302.343620][ T254] netlink_rcv_skb+0x130/0x360 [ 302.343620][ T254] netlink_unicast+0x449/0x710 [ 302.343620][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.343620][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.343620][ T254] ___sys_sendmsg+0xee/0x170 [ 302.343620][ T254] __sys_sendmsg+0xcd/0x170 [ 302.343620][ T254] do_syscall_64+0xc6/0x1e0 [ 302.343620][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 302.343620][ T254] [ 302.346096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.346096][ T254] netdev_get_by_index+0x5e/0x80 [ 302.346096][ T254] fib6_nh_init+0x3d8/0x1580 [ 302.346096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 302.346096][ T254] ip6_route_add+0x1c/0x140 [ 302.346096][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 302.346096][ T254] addrconf_add_dev+0xe2/0x170 [ 302.346096][ T254] inet6_addr_add+0x12f/0xa40 [ 302.346096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 302.346096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 302.346096][ T254] netlink_rcv_skb+0x130/0x360 [ 302.346096][ T254] netlink_unicast+0x449/0x710 [ 302.346096][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.346096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.346096][ T254] ___sys_sendmsg+0xee/0x170 [ 302.346096][ T254] __sys_sendmsg+0xcd/0x170 [ 302.346096][ T254] do_syscall_64+0xc6/0x1e0 [ 302.346096][ T254] [ 302.348494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.348494][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 302.348494][ T254] ipv6_find_idev+0x102/0x170 [ 302.348494][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 302.348494][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 302.348494][ T254] netlink_rcv_skb+0x130/0x360 [ 302.348494][ T254] netlink_unicast+0x449/0x710 [ 302.348494][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.348494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.348494][ T254] ___sys_sendmsg+0xee/0x170 [ 302.348494][ T254] __sys_sendmsg+0xcd/0x170 [ 302.348494][ T254] do_syscall_64+0xc6/0x1e0 [ 302.348494][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 302.348494][ T254] [ 302.350369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 302.350369][ T254] neigh_parms_alloc+0x1e5/0x510 [ 302.350369][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 302.350369][ T254] ipv6_find_idev+0x102/0x170 [ 302.350369][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 302.350369][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 302.350369][ T254] netlink_rcv_skb+0x130/0x360 [ 302.350369][ T254] netlink_unicast+0x449/0x710 [ 302.350369][ T254] netlink_sendmsg+0x723/0xbe0 [ 302.350369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 302.350369][ T254] ___sys_sendmsg+0xee/0x170 [ 302.350369][ T254] __sys_sendmsg+0xcd/0x170 [ 302.350369][ T254] do_syscall_64+0xc6/0x1e0 [ 302.350369][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 302.350369][ T254] [ 312.599901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 312.600405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.600405][ T254] dst_init+0x84/0x4a0 [ 312.600405][ T254] dst_alloc+0x97/0x150 [ 312.600405][ T254] ip6_dst_alloc+0x23/0x90 [ 312.600405][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 312.600405][ T254] ip6_pol_route+0x56f/0x840 [ 312.600405][ T254] fib6_rule_lookup+0x334/0x630 [ 312.600405][ T254] ip6_route_output_flags+0x259/0x480 [ 312.600405][ T254] inet6_rtm_getroute+0x980/0xf70 [ 312.600405][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 312.600405][ T254] netlink_rcv_skb+0x130/0x360 [ 312.600405][ T254] netlink_unicast+0x449/0x710 [ 312.600405][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.600405][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.600405][ T254] ___sys_sendmsg+0xee/0x170 [ 312.600405][ T254] __sys_sendmsg+0xcd/0x170 [ 312.600405][ T254] do_syscall_64+0xc6/0x1e0 [ 312.600405][ T254] [ 312.602805][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.602805][ T254] netdev_get_by_index+0x5e/0x80 [ 312.602805][ T254] fib6_nh_init+0x3d8/0x1580 [ 312.602805][ T254] ip6_route_info_create+0xf18/0x17d0 [ 312.602805][ T254] addrconf_f6i_alloc+0x265/0x560 [ 312.602805][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 312.602805][ T254] addrconf_join_anycast+0x1c0/0x220 [ 312.602805][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 312.602805][ T254] addrconf_dad_completed+0x12b/0xe20 [ 312.602805][ T254] addrconf_dad_begin+0x310/0x670 [ 312.602805][ T254] addrconf_dad_work+0x10b/0xab0 [ 312.602805][ T254] process_one_work+0x84d/0x18a0 [ 312.602805][ T254] worker_thread+0x587/0xd30 [ 312.602805][ T254] kthread+0x28a/0x350 [ 312.602805][ T254] ret_from_fork+0x31/0x70 [ 312.602805][ T254] ret_from_fork_asm+0x1a/0x30 [ 312.602805][ T254] [ 312.605158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.605158][ T254] netdev_get_by_index+0x5e/0x80 [ 312.605158][ T254] fib6_nh_init+0x3d8/0x1580 [ 312.605158][ T254] ip6_route_info_create+0xf18/0x17d0 [ 312.605158][ T254] ip6_route_add+0x1c/0x140 [ 312.605158][ T254] addrconf_prefix_route+0x2a6/0x430 [ 312.605158][ T254] inet6_addr_add+0x4f8/0xa40 [ 312.605158][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 312.605158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 312.605158][ T254] netlink_rcv_skb+0x130/0x360 [ 312.605158][ T254] netlink_unicast+0x449/0x710 [ 312.605158][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.605158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.605158][ T254] ___sys_sendmsg+0xee/0x170 [ 312.605158][ T254] __sys_sendmsg+0xcd/0x170 [ 312.605158][ T254] do_syscall_64+0xc6/0x1e0 [ 312.605158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 312.605158][ T254] [ 312.607612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.607612][ T254] netdev_get_by_index+0x5e/0x80 [ 312.607612][ T254] fib6_nh_init+0x3d8/0x1580 [ 312.607612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 312.607612][ T254] addrconf_f6i_alloc+0x315/0x560 [ 312.607612][ T254] ipv6_add_addr+0x411/0x2000 [ 312.607612][ T254] inet6_addr_add+0x30e/0xa40 [ 312.607612][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 312.607612][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 312.607612][ T254] netlink_rcv_skb+0x130/0x360 [ 312.607612][ T254] netlink_unicast+0x449/0x710 [ 312.607612][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.607612][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.607612][ T254] ___sys_sendmsg+0xee/0x170 [ 312.607612][ T254] __sys_sendmsg+0xcd/0x170 [ 312.607612][ T254] do_syscall_64+0xc6/0x1e0 [ 312.607612][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 312.607612][ T254] [ 312.610021][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.610021][ T254] netdev_get_by_index+0x5e/0x80 [ 312.610021][ T254] fib6_nh_init+0x3d8/0x1580 [ 312.610021][ T254] ip6_route_info_create+0xf18/0x17d0 [ 312.610021][ T254] ip6_route_add+0x1c/0x140 [ 312.610021][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 312.610021][ T254] addrconf_add_dev+0xe2/0x170 [ 312.610021][ T254] inet6_addr_add+0x12f/0xa40 [ 312.610021][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 312.610021][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 312.610021][ T254] netlink_rcv_skb+0x130/0x360 [ 312.610021][ T254] netlink_unicast+0x449/0x710 [ 312.610021][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.610021][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.610021][ T254] ___sys_sendmsg+0xee/0x170 [ 312.610021][ T254] __sys_sendmsg+0xcd/0x170 [ 312.610021][ T254] do_syscall_64+0xc6/0x1e0 [ 312.610021][ T254] [ 312.612461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.612461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 312.612461][ T254] ipv6_find_idev+0x102/0x170 [ 312.612461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 312.612461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 312.612461][ T254] netlink_rcv_skb+0x130/0x360 [ 312.612461][ T254] netlink_unicast+0x449/0x710 [ 312.612461][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.612461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.612461][ T254] ___sys_sendmsg+0xee/0x170 [ 312.612461][ T254] __sys_sendmsg+0xcd/0x170 [ 312.612461][ T254] do_syscall_64+0xc6/0x1e0 [ 312.612461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 312.612461][ T254] [ 312.614346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 312.614346][ T254] neigh_parms_alloc+0x1e5/0x510 [ 312.614346][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 312.614346][ T254] ipv6_find_idev+0x102/0x170 [ 312.614346][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 312.614346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 312.614346][ T254] netlink_rcv_skb+0x130/0x360 [ 312.614346][ T254] netlink_unicast+0x449/0x710 [ 312.614346][ T254] netlink_sendmsg+0x723/0xbe0 [ 312.614346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 312.614346][ T254] ___sys_sendmsg+0xee/0x170 [ 312.614346][ T254] __sys_sendmsg+0xcd/0x170 [ 312.614346][ T254] do_syscall_64+0xc6/0x1e0 [ 312.614346][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 312.614346][ T254] [ 322.863910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 322.864695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.864695][ T254] dst_init+0x84/0x4a0 [ 322.864695][ T254] dst_alloc+0x97/0x150 [ 322.864695][ T254] ip6_dst_alloc+0x23/0x90 [ 322.864695][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 322.864695][ T254] ip6_pol_route+0x56f/0x840 [ 322.864695][ T254] fib6_rule_lookup+0x334/0x630 [ 322.864695][ T254] ip6_route_output_flags+0x259/0x480 [ 322.864695][ T254] inet6_rtm_getroute+0x980/0xf70 [ 322.864695][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 322.864695][ T254] netlink_rcv_skb+0x130/0x360 [ 322.864695][ T254] netlink_unicast+0x449/0x710 [ 322.864695][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.864695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.864695][ T254] ___sys_sendmsg+0xee/0x170 [ 322.864695][ T254] __sys_sendmsg+0xcd/0x170 [ 322.864695][ T254] do_syscall_64+0xc6/0x1e0 [ 322.864695][ T254] [ 322.867168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.867168][ T254] netdev_get_by_index+0x5e/0x80 [ 322.867168][ T254] fib6_nh_init+0x3d8/0x1580 [ 322.867168][ T254] ip6_route_info_create+0xf18/0x17d0 [ 322.867168][ T254] addrconf_f6i_alloc+0x265/0x560 [ 322.867168][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 322.867168][ T254] addrconf_join_anycast+0x1c0/0x220 [ 322.867168][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 322.867168][ T254] addrconf_dad_completed+0x12b/0xe20 [ 322.867168][ T254] addrconf_dad_begin+0x310/0x670 [ 322.867168][ T254] addrconf_dad_work+0x10b/0xab0 [ 322.867168][ T254] process_one_work+0x84d/0x18a0 [ 322.867168][ T254] worker_thread+0x587/0xd30 [ 322.867168][ T254] kthread+0x28a/0x350 [ 322.867168][ T254] ret_from_fork+0x31/0x70 [ 322.867168][ T254] ret_from_fork_asm+0x1a/0x30 [ 322.867168][ T254] [ 322.869441][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.869441][ T254] netdev_get_by_index+0x5e/0x80 [ 322.869441][ T254] fib6_nh_init+0x3d8/0x1580 [ 322.869441][ T254] ip6_route_info_create+0xf18/0x17d0 [ 322.869441][ T254] ip6_route_add+0x1c/0x140 [ 322.869441][ T254] addrconf_prefix_route+0x2a6/0x430 [ 322.869441][ T254] inet6_addr_add+0x4f8/0xa40 [ 322.869441][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 322.869441][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 322.869441][ T254] netlink_rcv_skb+0x130/0x360 [ 322.869441][ T254] netlink_unicast+0x449/0x710 [ 322.869441][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.869441][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.869441][ T254] ___sys_sendmsg+0xee/0x170 [ 322.869441][ T254] __sys_sendmsg+0xcd/0x170 [ 322.869441][ T254] do_syscall_64+0xc6/0x1e0 [ 322.869441][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 322.869441][ T254] [ 322.871782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.871782][ T254] netdev_get_by_index+0x5e/0x80 [ 322.871782][ T254] fib6_nh_init+0x3d8/0x1580 [ 322.871782][ T254] ip6_route_info_create+0xf18/0x17d0 [ 322.871782][ T254] addrconf_f6i_alloc+0x315/0x560 [ 322.871782][ T254] ipv6_add_addr+0x411/0x2000 [ 322.871782][ T254] inet6_addr_add+0x30e/0xa40 [ 322.871782][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 322.871782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 322.871782][ T254] netlink_rcv_skb+0x130/0x360 [ 322.871782][ T254] netlink_unicast+0x449/0x710 [ 322.871782][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.871782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.871782][ T254] ___sys_sendmsg+0xee/0x170 [ 322.871782][ T254] __sys_sendmsg+0xcd/0x170 [ 322.871782][ T254] do_syscall_64+0xc6/0x1e0 [ 322.871782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 322.871782][ T254] [ 322.874151][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.874151][ T254] netdev_get_by_index+0x5e/0x80 [ 322.874151][ T254] fib6_nh_init+0x3d8/0x1580 [ 322.874151][ T254] ip6_route_info_create+0xf18/0x17d0 [ 322.874151][ T254] ip6_route_add+0x1c/0x140 [ 322.874151][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 322.874151][ T254] addrconf_add_dev+0xe2/0x170 [ 322.874151][ T254] inet6_addr_add+0x12f/0xa40 [ 322.874151][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 322.874151][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 322.874151][ T254] netlink_rcv_skb+0x130/0x360 [ 322.874151][ T254] netlink_unicast+0x449/0x710 [ 322.874151][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.874151][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.874151][ T254] ___sys_sendmsg+0xee/0x170 [ 322.874151][ T254] __sys_sendmsg+0xcd/0x170 [ 322.874151][ T254] do_syscall_64+0xc6/0x1e0 [ 322.874151][ T254] [ 322.876440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.876440][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 322.876440][ T254] ipv6_find_idev+0x102/0x170 [ 322.876440][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 322.876440][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 322.876440][ T254] netlink_rcv_skb+0x130/0x360 [ 322.876440][ T254] netlink_unicast+0x449/0x710 [ 322.876440][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.876440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.876440][ T254] ___sys_sendmsg+0xee/0x170 [ 322.876440][ T254] __sys_sendmsg+0xcd/0x170 [ 322.876440][ T254] do_syscall_64+0xc6/0x1e0 [ 322.876440][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 322.876440][ T254] [ 322.878247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 322.878247][ T254] neigh_parms_alloc+0x1e5/0x510 [ 322.878247][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 322.878247][ T254] ipv6_find_idev+0x102/0x170 [ 322.878247][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 322.878247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 322.878247][ T254] netlink_rcv_skb+0x130/0x360 [ 322.878247][ T254] netlink_unicast+0x449/0x710 [ 322.878247][ T254] netlink_sendmsg+0x723/0xbe0 [ 322.878247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 322.878247][ T254] ___sys_sendmsg+0xee/0x170 [ 322.878247][ T254] __sys_sendmsg+0xcd/0x170 [ 322.878247][ T254] do_syscall_64+0xc6/0x1e0 [ 322.878247][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 322.878247][ T254] [ 333.127848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 333.128394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.128394][ T254] dst_init+0x84/0x4a0 [ 333.128394][ T254] dst_alloc+0x97/0x150 [ 333.128394][ T254] ip6_dst_alloc+0x23/0x90 [ 333.128394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 333.128394][ T254] ip6_pol_route+0x56f/0x840 [ 333.128394][ T254] fib6_rule_lookup+0x334/0x630 [ 333.128394][ T254] ip6_route_output_flags+0x259/0x480 [ 333.128394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 333.128394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 333.128394][ T254] netlink_rcv_skb+0x130/0x360 [ 333.128394][ T254] netlink_unicast+0x449/0x710 [ 333.128394][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.128394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.128394][ T254] ___sys_sendmsg+0xee/0x170 [ 333.128394][ T254] __sys_sendmsg+0xcd/0x170 [ 333.128394][ T254] do_syscall_64+0xc6/0x1e0 [ 333.128394][ T254] [ 333.130671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.130671][ T254] netdev_get_by_index+0x5e/0x80 [ 333.130671][ T254] fib6_nh_init+0x3d8/0x1580 [ 333.130671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 333.130671][ T254] addrconf_f6i_alloc+0x265/0x560 [ 333.130671][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 333.130671][ T254] addrconf_join_anycast+0x1c0/0x220 [ 333.130671][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 333.130671][ T254] addrconf_dad_completed+0x12b/0xe20 [ 333.130671][ T254] addrconf_dad_begin+0x310/0x670 [ 333.130671][ T254] addrconf_dad_work+0x10b/0xab0 [ 333.130671][ T254] process_one_work+0x84d/0x18a0 [ 333.130671][ T254] worker_thread+0x587/0xd30 [ 333.130671][ T254] kthread+0x28a/0x350 [ 333.130671][ T254] ret_from_fork+0x31/0x70 [ 333.130671][ T254] ret_from_fork_asm+0x1a/0x30 [ 333.130671][ T254] [ 333.132895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.132895][ T254] netdev_get_by_index+0x5e/0x80 [ 333.132895][ T254] fib6_nh_init+0x3d8/0x1580 [ 333.132895][ T254] ip6_route_info_create+0xf18/0x17d0 [ 333.132895][ T254] ip6_route_add+0x1c/0x140 [ 333.132895][ T254] addrconf_prefix_route+0x2a6/0x430 [ 333.132895][ T254] inet6_addr_add+0x4f8/0xa40 [ 333.132895][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 333.132895][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 333.132895][ T254] netlink_rcv_skb+0x130/0x360 [ 333.132895][ T254] netlink_unicast+0x449/0x710 [ 333.132895][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.132895][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.132895][ T254] ___sys_sendmsg+0xee/0x170 [ 333.132895][ T254] __sys_sendmsg+0xcd/0x170 [ 333.132895][ T254] do_syscall_64+0xc6/0x1e0 [ 333.132895][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 333.132895][ T254] [ 333.135202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.135202][ T254] netdev_get_by_index+0x5e/0x80 [ 333.135202][ T254] fib6_nh_init+0x3d8/0x1580 [ 333.135202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 333.135202][ T254] addrconf_f6i_alloc+0x315/0x560 [ 333.135202][ T254] ipv6_add_addr+0x411/0x2000 [ 333.135202][ T254] inet6_addr_add+0x30e/0xa40 [ 333.135202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 333.135202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 333.135202][ T254] netlink_rcv_skb+0x130/0x360 [ 333.135202][ T254] netlink_unicast+0x449/0x710 [ 333.135202][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.135202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.135202][ T254] ___sys_sendmsg+0xee/0x170 [ 333.135202][ T254] __sys_sendmsg+0xcd/0x170 [ 333.135202][ T254] do_syscall_64+0xc6/0x1e0 [ 333.135202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 333.135202][ T254] [ 333.137519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.137519][ T254] netdev_get_by_index+0x5e/0x80 [ 333.137519][ T254] fib6_nh_init+0x3d8/0x1580 [ 333.137519][ T254] ip6_route_info_create+0xf18/0x17d0 [ 333.137519][ T254] ip6_route_add+0x1c/0x140 [ 333.137519][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 333.137519][ T254] addrconf_add_dev+0xe2/0x170 [ 333.137519][ T254] inet6_addr_add+0x12f/0xa40 [ 333.137519][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 333.137519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 333.137519][ T254] netlink_rcv_skb+0x130/0x360 [ 333.137519][ T254] netlink_unicast+0x449/0x710 [ 333.137519][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.137519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.137519][ T254] ___sys_sendmsg+0xee/0x170 [ 333.137519][ T254] __sys_sendmsg+0xcd/0x170 [ 333.137519][ T254] do_syscall_64+0xc6/0x1e0 [ 333.137519][ T254] [ 333.139790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.139790][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 333.139790][ T254] ipv6_find_idev+0x102/0x170 [ 333.139790][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 333.139790][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 333.139790][ T254] netlink_rcv_skb+0x130/0x360 [ 333.139790][ T254] netlink_unicast+0x449/0x710 [ 333.139790][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.139790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.139790][ T254] ___sys_sendmsg+0xee/0x170 [ 333.139790][ T254] __sys_sendmsg+0xcd/0x170 [ 333.139790][ T254] do_syscall_64+0xc6/0x1e0 [ 333.139790][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 333.139790][ T254] [ 333.141696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 333.141696][ T254] neigh_parms_alloc+0x1e5/0x510 [ 333.141696][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 333.141696][ T254] ipv6_find_idev+0x102/0x170 [ 333.141696][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 333.141696][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 333.141696][ T254] netlink_rcv_skb+0x130/0x360 [ 333.141696][ T254] netlink_unicast+0x449/0x710 [ 333.141696][ T254] netlink_sendmsg+0x723/0xbe0 [ 333.141696][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 333.141696][ T254] ___sys_sendmsg+0xee/0x170 [ 333.141696][ T254] __sys_sendmsg+0xcd/0x170 [ 333.141696][ T254] do_syscall_64+0xc6/0x1e0 [ 333.141696][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 333.141696][ T254] [ 343.391848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 343.392505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.392505][ T254] dst_init+0x84/0x4a0 [ 343.392505][ T254] dst_alloc+0x97/0x150 [ 343.392505][ T254] ip6_dst_alloc+0x23/0x90 [ 343.392505][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 343.392505][ T254] ip6_pol_route+0x56f/0x840 [ 343.392505][ T254] fib6_rule_lookup+0x334/0x630 [ 343.392505][ T254] ip6_route_output_flags+0x259/0x480 [ 343.392505][ T254] inet6_rtm_getroute+0x980/0xf70 [ 343.392505][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 343.392505][ T254] netlink_rcv_skb+0x130/0x360 [ 343.392505][ T254] netlink_unicast+0x449/0x710 [ 343.392505][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.392505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.392505][ T254] ___sys_sendmsg+0xee/0x170 [ 343.392505][ T254] __sys_sendmsg+0xcd/0x170 [ 343.392505][ T254] do_syscall_64+0xc6/0x1e0 [ 343.392505][ T254] [ 343.394767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.394767][ T254] netdev_get_by_index+0x5e/0x80 [ 343.394767][ T254] fib6_nh_init+0x3d8/0x1580 [ 343.394767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 343.394767][ T254] addrconf_f6i_alloc+0x265/0x560 [ 343.394767][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 343.394767][ T254] addrconf_join_anycast+0x1c0/0x220 [ 343.394767][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 343.394767][ T254] addrconf_dad_completed+0x12b/0xe20 [ 343.394767][ T254] addrconf_dad_begin+0x310/0x670 [ 343.394767][ T254] addrconf_dad_work+0x10b/0xab0 [ 343.394767][ T254] process_one_work+0x84d/0x18a0 [ 343.394767][ T254] worker_thread+0x587/0xd30 [ 343.394767][ T254] kthread+0x28a/0x350 [ 343.394767][ T254] ret_from_fork+0x31/0x70 [ 343.394767][ T254] ret_from_fork_asm+0x1a/0x30 [ 343.394767][ T254] [ 343.396995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.396995][ T254] netdev_get_by_index+0x5e/0x80 [ 343.396995][ T254] fib6_nh_init+0x3d8/0x1580 [ 343.396995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 343.396995][ T254] ip6_route_add+0x1c/0x140 [ 343.396995][ T254] addrconf_prefix_route+0x2a6/0x430 [ 343.396995][ T254] inet6_addr_add+0x4f8/0xa40 [ 343.396995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 343.396995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 343.396995][ T254] netlink_rcv_skb+0x130/0x360 [ 343.396995][ T254] netlink_unicast+0x449/0x710 [ 343.396995][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.396995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.396995][ T254] ___sys_sendmsg+0xee/0x170 [ 343.396995][ T254] __sys_sendmsg+0xcd/0x170 [ 343.396995][ T254] do_syscall_64+0xc6/0x1e0 [ 343.396995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 343.396995][ T254] [ 343.399305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.399305][ T254] netdev_get_by_index+0x5e/0x80 [ 343.399305][ T254] fib6_nh_init+0x3d8/0x1580 [ 343.399305][ T254] ip6_route_info_create+0xf18/0x17d0 [ 343.399305][ T254] addrconf_f6i_alloc+0x315/0x560 [ 343.399305][ T254] ipv6_add_addr+0x411/0x2000 [ 343.399305][ T254] inet6_addr_add+0x30e/0xa40 [ 343.399305][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 343.399305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 343.399305][ T254] netlink_rcv_skb+0x130/0x360 [ 343.399305][ T254] netlink_unicast+0x449/0x710 [ 343.399305][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.399305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.399305][ T254] ___sys_sendmsg+0xee/0x170 [ 343.399305][ T254] __sys_sendmsg+0xcd/0x170 [ 343.399305][ T254] do_syscall_64+0xc6/0x1e0 [ 343.399305][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 343.399305][ T254] [ 343.401625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.401625][ T254] netdev_get_by_index+0x5e/0x80 [ 343.401625][ T254] fib6_nh_init+0x3d8/0x1580 [ 343.401625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 343.401625][ T254] ip6_route_add+0x1c/0x140 [ 343.401625][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 343.401625][ T254] addrconf_add_dev+0xe2/0x170 [ 343.401625][ T254] inet6_addr_add+0x12f/0xa40 [ 343.401625][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 343.401625][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 343.401625][ T254] netlink_rcv_skb+0x130/0x360 [ 343.401625][ T254] netlink_unicast+0x449/0x710 [ 343.401625][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.401625][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.401625][ T254] ___sys_sendmsg+0xee/0x170 [ 343.401625][ T254] __sys_sendmsg+0xcd/0x170 [ 343.401625][ T254] do_syscall_64+0xc6/0x1e0 [ 343.401625][ T254] [ 343.403896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.403896][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 343.403896][ T254] ipv6_find_idev+0x102/0x170 [ 343.403896][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 343.403896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 343.403896][ T254] netlink_rcv_skb+0x130/0x360 [ 343.403896][ T254] netlink_unicast+0x449/0x710 [ 343.403896][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.403896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.403896][ T254] ___sys_sendmsg+0xee/0x170 [ 343.403896][ T254] __sys_sendmsg+0xcd/0x170 [ 343.403896][ T254] do_syscall_64+0xc6/0x1e0 [ 343.403896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 343.403896][ T254] [ 343.405685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 343.405685][ T254] neigh_parms_alloc+0x1e5/0x510 [ 343.405685][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 343.405685][ T254] ipv6_find_idev+0x102/0x170 [ 343.405685][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 343.405685][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 343.405685][ T254] netlink_rcv_skb+0x130/0x360 [ 343.405685][ T254] netlink_unicast+0x449/0x710 [ 343.405685][ T254] netlink_sendmsg+0x723/0xbe0 [ 343.405685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 343.405685][ T254] ___sys_sendmsg+0xee/0x170 [ 343.405685][ T254] __sys_sendmsg+0xcd/0x170 [ 343.405685][ T254] do_syscall_64+0xc6/0x1e0 [ 343.405685][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 343.405685][ T254] [ 353.655816][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 353.656387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.656387][ T254] dst_init+0x84/0x4a0 [ 353.656387][ T254] dst_alloc+0x97/0x150 [ 353.656387][ T254] ip6_dst_alloc+0x23/0x90 [ 353.656387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 353.656387][ T254] ip6_pol_route+0x56f/0x840 [ 353.656387][ T254] fib6_rule_lookup+0x334/0x630 [ 353.656387][ T254] ip6_route_output_flags+0x259/0x480 [ 353.656387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 353.656387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 353.656387][ T254] netlink_rcv_skb+0x130/0x360 [ 353.656387][ T254] netlink_unicast+0x449/0x710 [ 353.656387][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.656387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.656387][ T254] ___sys_sendmsg+0xee/0x170 [ 353.656387][ T254] __sys_sendmsg+0xcd/0x170 [ 353.656387][ T254] do_syscall_64+0xc6/0x1e0 [ 353.656387][ T254] [ 353.658678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.658678][ T254] netdev_get_by_index+0x5e/0x80 [ 353.658678][ T254] fib6_nh_init+0x3d8/0x1580 [ 353.658678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 353.658678][ T254] addrconf_f6i_alloc+0x265/0x560 [ 353.658678][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 353.658678][ T254] addrconf_join_anycast+0x1c0/0x220 [ 353.658678][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 353.658678][ T254] addrconf_dad_completed+0x12b/0xe20 [ 353.658678][ T254] addrconf_dad_begin+0x310/0x670 [ 353.658678][ T254] addrconf_dad_work+0x10b/0xab0 [ 353.658678][ T254] process_one_work+0x84d/0x18a0 [ 353.658678][ T254] worker_thread+0x587/0xd30 [ 353.658678][ T254] kthread+0x28a/0x350 [ 353.658678][ T254] ret_from_fork+0x31/0x70 [ 353.658678][ T254] ret_from_fork_asm+0x1a/0x30 [ 353.658678][ T254] [ 353.660902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.660902][ T254] netdev_get_by_index+0x5e/0x80 [ 353.660902][ T254] fib6_nh_init+0x3d8/0x1580 [ 353.660902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 353.660902][ T254] ip6_route_add+0x1c/0x140 [ 353.660902][ T254] addrconf_prefix_route+0x2a6/0x430 [ 353.660902][ T254] inet6_addr_add+0x4f8/0xa40 [ 353.660902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 353.660902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 353.660902][ T254] netlink_rcv_skb+0x130/0x360 [ 353.660902][ T254] netlink_unicast+0x449/0x710 [ 353.660902][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.660902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.660902][ T254] ___sys_sendmsg+0xee/0x170 [ 353.660902][ T254] __sys_sendmsg+0xcd/0x170 [ 353.660902][ T254] do_syscall_64+0xc6/0x1e0 [ 353.660902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 353.660902][ T254] [ 353.663238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.663238][ T254] netdev_get_by_index+0x5e/0x80 [ 353.663238][ T254] fib6_nh_init+0x3d8/0x1580 [ 353.663238][ T254] ip6_route_info_create+0xf18/0x17d0 [ 353.663238][ T254] addrconf_f6i_alloc+0x315/0x560 [ 353.663238][ T254] ipv6_add_addr+0x411/0x2000 [ 353.663238][ T254] inet6_addr_add+0x30e/0xa40 [ 353.663238][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 353.663238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 353.663238][ T254] netlink_rcv_skb+0x130/0x360 [ 353.663238][ T254] netlink_unicast+0x449/0x710 [ 353.663238][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.663238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.663238][ T254] ___sys_sendmsg+0xee/0x170 [ 353.663238][ T254] __sys_sendmsg+0xcd/0x170 [ 353.663238][ T254] do_syscall_64+0xc6/0x1e0 [ 353.663238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 353.663238][ T254] [ 353.665570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.665570][ T254] netdev_get_by_index+0x5e/0x80 [ 353.665570][ T254] fib6_nh_init+0x3d8/0x1580 [ 353.665570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 353.665570][ T254] ip6_route_add+0x1c/0x140 [ 353.665570][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 353.665570][ T254] addrconf_add_dev+0xe2/0x170 [ 353.665570][ T254] inet6_addr_add+0x12f/0xa40 [ 353.665570][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 353.665570][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 353.665570][ T254] netlink_rcv_skb+0x130/0x360 [ 353.665570][ T254] netlink_unicast+0x449/0x710 [ 353.665570][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.665570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.665570][ T254] ___sys_sendmsg+0xee/0x170 [ 353.665570][ T254] __sys_sendmsg+0xcd/0x170 [ 353.665570][ T254] do_syscall_64+0xc6/0x1e0 [ 353.665570][ T254] [ 353.667854][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.667854][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 353.667854][ T254] ipv6_find_idev+0x102/0x170 [ 353.667854][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 353.667854][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 353.667854][ T254] netlink_rcv_skb+0x130/0x360 [ 353.667854][ T254] netlink_unicast+0x449/0x710 [ 353.667854][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.667854][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.667854][ T254] ___sys_sendmsg+0xee/0x170 [ 353.667854][ T254] __sys_sendmsg+0xcd/0x170 [ 353.667854][ T254] do_syscall_64+0xc6/0x1e0 [ 353.667854][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 353.667854][ T254] [ 353.669639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 353.669639][ T254] neigh_parms_alloc+0x1e5/0x510 [ 353.669639][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 353.669639][ T254] ipv6_find_idev+0x102/0x170 [ 353.669639][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 353.669639][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 353.669639][ T254] netlink_rcv_skb+0x130/0x360 [ 353.669639][ T254] netlink_unicast+0x449/0x710 [ 353.669639][ T254] netlink_sendmsg+0x723/0xbe0 [ 353.669639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 353.669639][ T254] ___sys_sendmsg+0xee/0x170 [ 353.669639][ T254] __sys_sendmsg+0xcd/0x170 [ 353.669639][ T254] do_syscall_64+0xc6/0x1e0 [ 353.669639][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 353.669639][ T254] [ 363.687863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 363.688463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.688463][ T254] dst_init+0x84/0x4a0 [ 363.688463][ T254] dst_alloc+0x97/0x150 [ 363.688463][ T254] ip6_dst_alloc+0x23/0x90 [ 363.688463][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 363.688463][ T254] ip6_pol_route+0x56f/0x840 [ 363.688463][ T254] fib6_rule_lookup+0x334/0x630 [ 363.688463][ T254] ip6_route_output_flags+0x259/0x480 [ 363.688463][ T254] inet6_rtm_getroute+0x980/0xf70 [ 363.688463][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 363.688463][ T254] netlink_rcv_skb+0x130/0x360 [ 363.688463][ T254] netlink_unicast+0x449/0x710 [ 363.688463][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.688463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.688463][ T254] ___sys_sendmsg+0xee/0x170 [ 363.688463][ T254] __sys_sendmsg+0xcd/0x170 [ 363.688463][ T254] do_syscall_64+0xc6/0x1e0 [ 363.688463][ T254] [ 363.690763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.690763][ T254] netdev_get_by_index+0x5e/0x80 [ 363.690763][ T254] fib6_nh_init+0x3d8/0x1580 [ 363.690763][ T254] ip6_route_info_create+0xf18/0x17d0 [ 363.690763][ T254] addrconf_f6i_alloc+0x265/0x560 [ 363.690763][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 363.690763][ T254] addrconf_join_anycast+0x1c0/0x220 [ 363.690763][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 363.690763][ T254] addrconf_dad_completed+0x12b/0xe20 [ 363.690763][ T254] addrconf_dad_begin+0x310/0x670 [ 363.690763][ T254] addrconf_dad_work+0x10b/0xab0 [ 363.690763][ T254] process_one_work+0x84d/0x18a0 [ 363.690763][ T254] worker_thread+0x587/0xd30 [ 363.690763][ T254] kthread+0x28a/0x350 [ 363.690763][ T254] ret_from_fork+0x31/0x70 [ 363.690763][ T254] ret_from_fork_asm+0x1a/0x30 [ 363.690763][ T254] [ 363.693007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.693007][ T254] netdev_get_by_index+0x5e/0x80 [ 363.693007][ T254] fib6_nh_init+0x3d8/0x1580 [ 363.693007][ T254] ip6_route_info_create+0xf18/0x17d0 [ 363.693007][ T254] ip6_route_add+0x1c/0x140 [ 363.693007][ T254] addrconf_prefix_route+0x2a6/0x430 [ 363.693007][ T254] inet6_addr_add+0x4f8/0xa40 [ 363.693007][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 363.693007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 363.693007][ T254] netlink_rcv_skb+0x130/0x360 [ 363.693007][ T254] netlink_unicast+0x449/0x710 [ 363.693007][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.693007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.693007][ T254] ___sys_sendmsg+0xee/0x170 [ 363.693007][ T254] __sys_sendmsg+0xcd/0x170 [ 363.693007][ T254] do_syscall_64+0xc6/0x1e0 [ 363.693007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 363.693007][ T254] [ 363.695389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.695389][ T254] netdev_get_by_index+0x5e/0x80 [ 363.695389][ T254] fib6_nh_init+0x3d8/0x1580 [ 363.695389][ T254] ip6_route_info_create+0xf18/0x17d0 [ 363.695389][ T254] addrconf_f6i_alloc+0x315/0x560 [ 363.695389][ T254] ipv6_add_addr+0x411/0x2000 [ 363.695389][ T254] inet6_addr_add+0x30e/0xa40 [ 363.695389][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 363.695389][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 363.695389][ T254] netlink_rcv_skb+0x130/0x360 [ 363.695389][ T254] netlink_unicast+0x449/0x710 [ 363.695389][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.695389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.695389][ T254] ___sys_sendmsg+0xee/0x170 [ 363.695389][ T254] __sys_sendmsg+0xcd/0x170 [ 363.695389][ T254] do_syscall_64+0xc6/0x1e0 [ 363.695389][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 363.695389][ T254] [ 363.697771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.697771][ T254] netdev_get_by_index+0x5e/0x80 [ 363.697771][ T254] fib6_nh_init+0x3d8/0x1580 [ 363.697771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 363.697771][ T254] ip6_route_add+0x1c/0x140 [ 363.697771][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 363.697771][ T254] addrconf_add_dev+0xe2/0x170 [ 363.697771][ T254] inet6_addr_add+0x12f/0xa40 [ 363.697771][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 363.697771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 363.697771][ T254] netlink_rcv_skb+0x130/0x360 [ 363.697771][ T254] netlink_unicast+0x449/0x710 [ 363.697771][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.697771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.697771][ T254] ___sys_sendmsg+0xee/0x170 [ 363.697771][ T254] __sys_sendmsg+0xcd/0x170 [ 363.697771][ T254] do_syscall_64+0xc6/0x1e0 [ 363.697771][ T254] [ 363.700076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.700076][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 363.700076][ T254] ipv6_find_idev+0x102/0x170 [ 363.700076][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 363.700076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 363.700076][ T254] netlink_rcv_skb+0x130/0x360 [ 363.700076][ T254] netlink_unicast+0x449/0x710 [ 363.700076][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.700076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.700076][ T254] ___sys_sendmsg+0xee/0x170 [ 363.700076][ T254] __sys_sendmsg+0xcd/0x170 [ 363.700076][ T254] do_syscall_64+0xc6/0x1e0 [ 363.700076][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 363.700076][ T254] [ 363.701907][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 363.701907][ T254] neigh_parms_alloc+0x1e5/0x510 [ 363.701907][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 363.701907][ T254] ipv6_find_idev+0x102/0x170 [ 363.701907][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 363.701907][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 363.701907][ T254] netlink_rcv_skb+0x130/0x360 [ 363.701907][ T254] netlink_unicast+0x449/0x710 [ 363.701907][ T254] netlink_sendmsg+0x723/0xbe0 [ 363.701907][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 363.701907][ T254] ___sys_sendmsg+0xee/0x170 [ 363.701907][ T254] __sys_sendmsg+0xcd/0x170 [ 363.701907][ T254] do_syscall_64+0xc6/0x1e0 [ 363.701907][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 363.701907][ T254] [ 373.799864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 373.800518][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.800518][ T254] dst_init+0x84/0x4a0 [ 373.800518][ T254] dst_alloc+0x97/0x150 [ 373.800518][ T254] ip6_dst_alloc+0x23/0x90 [ 373.800518][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 373.800518][ T254] ip6_pol_route+0x56f/0x840 [ 373.800518][ T254] fib6_rule_lookup+0x334/0x630 [ 373.800518][ T254] ip6_route_output_flags+0x259/0x480 [ 373.800518][ T254] inet6_rtm_getroute+0x980/0xf70 [ 373.800518][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 373.800518][ T254] netlink_rcv_skb+0x130/0x360 [ 373.800518][ T254] netlink_unicast+0x449/0x710 [ 373.800518][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.800518][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.800518][ T254] ___sys_sendmsg+0xee/0x170 [ 373.800518][ T254] __sys_sendmsg+0xcd/0x170 [ 373.800518][ T254] do_syscall_64+0xc6/0x1e0 [ 373.800518][ T254] [ 373.802790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.802790][ T254] netdev_get_by_index+0x5e/0x80 [ 373.802790][ T254] fib6_nh_init+0x3d8/0x1580 [ 373.802790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 373.802790][ T254] addrconf_f6i_alloc+0x265/0x560 [ 373.802790][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 373.802790][ T254] addrconf_join_anycast+0x1c0/0x220 [ 373.802790][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 373.802790][ T254] addrconf_dad_completed+0x12b/0xe20 [ 373.802790][ T254] addrconf_dad_begin+0x310/0x670 [ 373.802790][ T254] addrconf_dad_work+0x10b/0xab0 [ 373.802790][ T254] process_one_work+0x84d/0x18a0 [ 373.802790][ T254] worker_thread+0x587/0xd30 [ 373.802790][ T254] kthread+0x28a/0x350 [ 373.802790][ T254] ret_from_fork+0x31/0x70 [ 373.802790][ T254] ret_from_fork_asm+0x1a/0x30 [ 373.802790][ T254] [ 373.805065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.805065][ T254] netdev_get_by_index+0x5e/0x80 [ 373.805065][ T254] fib6_nh_init+0x3d8/0x1580 [ 373.805065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 373.805065][ T254] ip6_route_add+0x1c/0x140 [ 373.805065][ T254] addrconf_prefix_route+0x2a6/0x430 [ 373.805065][ T254] inet6_addr_add+0x4f8/0xa40 [ 373.805065][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 373.805065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 373.805065][ T254] netlink_rcv_skb+0x130/0x360 [ 373.805065][ T254] netlink_unicast+0x449/0x710 [ 373.805065][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.805065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.805065][ T254] ___sys_sendmsg+0xee/0x170 [ 373.805065][ T254] __sys_sendmsg+0xcd/0x170 [ 373.805065][ T254] do_syscall_64+0xc6/0x1e0 [ 373.805065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 373.805065][ T254] [ 373.807401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.807401][ T254] netdev_get_by_index+0x5e/0x80 [ 373.807401][ T254] fib6_nh_init+0x3d8/0x1580 [ 373.807401][ T254] ip6_route_info_create+0xf18/0x17d0 [ 373.807401][ T254] addrconf_f6i_alloc+0x315/0x560 [ 373.807401][ T254] ipv6_add_addr+0x411/0x2000 [ 373.807401][ T254] inet6_addr_add+0x30e/0xa40 [ 373.807401][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 373.807401][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 373.807401][ T254] netlink_rcv_skb+0x130/0x360 [ 373.807401][ T254] netlink_unicast+0x449/0x710 [ 373.807401][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.807401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.807401][ T254] ___sys_sendmsg+0xee/0x170 [ 373.807401][ T254] __sys_sendmsg+0xcd/0x170 [ 373.807401][ T254] do_syscall_64+0xc6/0x1e0 [ 373.807401][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 373.807401][ T254] [ 373.809711][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.809711][ T254] netdev_get_by_index+0x5e/0x80 [ 373.809711][ T254] fib6_nh_init+0x3d8/0x1580 [ 373.809711][ T254] ip6_route_info_create+0xf18/0x17d0 [ 373.809711][ T254] ip6_route_add+0x1c/0x140 [ 373.809711][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 373.809711][ T254] addrconf_add_dev+0xe2/0x170 [ 373.809711][ T254] inet6_addr_add+0x12f/0xa40 [ 373.809711][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 373.809711][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 373.809711][ T254] netlink_rcv_skb+0x130/0x360 [ 373.809711][ T254] netlink_unicast+0x449/0x710 [ 373.809711][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.809711][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.809711][ T254] ___sys_sendmsg+0xee/0x170 [ 373.809711][ T254] __sys_sendmsg+0xcd/0x170 [ 373.809711][ T254] do_syscall_64+0xc6/0x1e0 [ 373.809711][ T254] [ 373.811983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.811983][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 373.811983][ T254] ipv6_find_idev+0x102/0x170 [ 373.811983][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 373.811983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 373.811983][ T254] netlink_rcv_skb+0x130/0x360 [ 373.811983][ T254] netlink_unicast+0x449/0x710 [ 373.811983][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.811983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.811983][ T254] ___sys_sendmsg+0xee/0x170 [ 373.811983][ T254] __sys_sendmsg+0xcd/0x170 [ 373.811983][ T254] do_syscall_64+0xc6/0x1e0 [ 373.811983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 373.811983][ T254] [ 373.813761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 373.813761][ T254] neigh_parms_alloc+0x1e5/0x510 [ 373.813761][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 373.813761][ T254] ipv6_find_idev+0x102/0x170 [ 373.813761][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 373.813761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 373.813761][ T254] netlink_rcv_skb+0x130/0x360 [ 373.813761][ T254] netlink_unicast+0x449/0x710 [ 373.813761][ T254] netlink_sendmsg+0x723/0xbe0 [ 373.813761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 373.813761][ T254] ___sys_sendmsg+0xee/0x170 [ 373.813761][ T254] __sys_sendmsg+0xcd/0x170 [ 373.813761][ T254] do_syscall_64+0xc6/0x1e0 [ 373.813761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 373.813761][ T254] [ 383.847784][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 383.848433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.848433][ T254] dst_init+0x84/0x4a0 [ 383.848433][ T254] dst_alloc+0x97/0x150 [ 383.848433][ T254] ip6_dst_alloc+0x23/0x90 [ 383.848433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 383.848433][ T254] ip6_pol_route+0x56f/0x840 [ 383.848433][ T254] fib6_rule_lookup+0x334/0x630 [ 383.848433][ T254] ip6_route_output_flags+0x259/0x480 [ 383.848433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 383.848433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 383.848433][ T254] netlink_rcv_skb+0x130/0x360 [ 383.848433][ T254] netlink_unicast+0x449/0x710 [ 383.848433][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.848433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.848433][ T254] ___sys_sendmsg+0xee/0x170 [ 383.848433][ T254] __sys_sendmsg+0xcd/0x170 [ 383.848433][ T254] do_syscall_64+0xc6/0x1e0 [ 383.848433][ T254] [ 383.850710][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.850710][ T254] netdev_get_by_index+0x5e/0x80 [ 383.850710][ T254] fib6_nh_init+0x3d8/0x1580 [ 383.850710][ T254] ip6_route_info_create+0xf18/0x17d0 [ 383.850710][ T254] addrconf_f6i_alloc+0x265/0x560 [ 383.850710][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 383.850710][ T254] addrconf_join_anycast+0x1c0/0x220 [ 383.850710][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 383.850710][ T254] addrconf_dad_completed+0x12b/0xe20 [ 383.850710][ T254] addrconf_dad_begin+0x310/0x670 [ 383.850710][ T254] addrconf_dad_work+0x10b/0xab0 [ 383.850710][ T254] process_one_work+0x84d/0x18a0 [ 383.850710][ T254] worker_thread+0x587/0xd30 [ 383.850710][ T254] kthread+0x28a/0x350 [ 383.850710][ T254] ret_from_fork+0x31/0x70 [ 383.850710][ T254] ret_from_fork_asm+0x1a/0x30 [ 383.850710][ T254] [ 383.852942][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.852942][ T254] netdev_get_by_index+0x5e/0x80 [ 383.852942][ T254] fib6_nh_init+0x3d8/0x1580 [ 383.852942][ T254] ip6_route_info_create+0xf18/0x17d0 [ 383.852942][ T254] ip6_route_add+0x1c/0x140 [ 383.852942][ T254] addrconf_prefix_route+0x2a6/0x430 [ 383.852942][ T254] inet6_addr_add+0x4f8/0xa40 [ 383.852942][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 383.852942][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 383.852942][ T254] netlink_rcv_skb+0x130/0x360 [ 383.852942][ T254] netlink_unicast+0x449/0x710 [ 383.852942][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.852942][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.852942][ T254] ___sys_sendmsg+0xee/0x170 [ 383.852942][ T254] __sys_sendmsg+0xcd/0x170 [ 383.852942][ T254] do_syscall_64+0xc6/0x1e0 [ 383.852942][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 383.852942][ T254] [ 383.855273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.855273][ T254] netdev_get_by_index+0x5e/0x80 [ 383.855273][ T254] fib6_nh_init+0x3d8/0x1580 [ 383.855273][ T254] ip6_route_info_create+0xf18/0x17d0 [ 383.855273][ T254] addrconf_f6i_alloc+0x315/0x560 [ 383.855273][ T254] ipv6_add_addr+0x411/0x2000 [ 383.855273][ T254] inet6_addr_add+0x30e/0xa40 [ 383.855273][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 383.855273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 383.855273][ T254] netlink_rcv_skb+0x130/0x360 [ 383.855273][ T254] netlink_unicast+0x449/0x710 [ 383.855273][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.855273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.855273][ T254] ___sys_sendmsg+0xee/0x170 [ 383.855273][ T254] __sys_sendmsg+0xcd/0x170 [ 383.855273][ T254] do_syscall_64+0xc6/0x1e0 [ 383.855273][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 383.855273][ T254] [ 383.857581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.857581][ T254] netdev_get_by_index+0x5e/0x80 [ 383.857581][ T254] fib6_nh_init+0x3d8/0x1580 [ 383.857581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 383.857581][ T254] ip6_route_add+0x1c/0x140 [ 383.857581][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 383.857581][ T254] addrconf_add_dev+0xe2/0x170 [ 383.857581][ T254] inet6_addr_add+0x12f/0xa40 [ 383.857581][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 383.857581][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 383.857581][ T254] netlink_rcv_skb+0x130/0x360 [ 383.857581][ T254] netlink_unicast+0x449/0x710 [ 383.857581][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.857581][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.857581][ T254] ___sys_sendmsg+0xee/0x170 [ 383.857581][ T254] __sys_sendmsg+0xcd/0x170 [ 383.857581][ T254] do_syscall_64+0xc6/0x1e0 [ 383.857581][ T254] [ 383.859841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.859841][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 383.859841][ T254] ipv6_find_idev+0x102/0x170 [ 383.859841][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 383.859841][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 383.859841][ T254] netlink_rcv_skb+0x130/0x360 [ 383.859841][ T254] netlink_unicast+0x449/0x710 [ 383.859841][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.859841][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.859841][ T254] ___sys_sendmsg+0xee/0x170 [ 383.859841][ T254] __sys_sendmsg+0xcd/0x170 [ 383.859841][ T254] do_syscall_64+0xc6/0x1e0 [ 383.859841][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 383.859841][ T254] [ 383.861637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 383.861637][ T254] neigh_parms_alloc+0x1e5/0x510 [ 383.861637][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 383.861637][ T254] ipv6_find_idev+0x102/0x170 [ 383.861637][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 383.861637][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 383.861637][ T254] netlink_rcv_skb+0x130/0x360 [ 383.861637][ T254] netlink_unicast+0x449/0x710 [ 383.861637][ T254] netlink_sendmsg+0x723/0xbe0 [ 383.861637][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 383.861637][ T254] ___sys_sendmsg+0xee/0x170 [ 383.861637][ T254] __sys_sendmsg+0xcd/0x170 [ 383.861637][ T254] do_syscall_64+0xc6/0x1e0 [ 383.861637][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 383.861637][ T254] [ 394.111872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 394.112480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.112480][ T254] dst_init+0x84/0x4a0 [ 394.112480][ T254] dst_alloc+0x97/0x150 [ 394.112480][ T254] ip6_dst_alloc+0x23/0x90 [ 394.112480][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 394.112480][ T254] ip6_pol_route+0x56f/0x840 [ 394.112480][ T254] fib6_rule_lookup+0x334/0x630 [ 394.112480][ T254] ip6_route_output_flags+0x259/0x480 [ 394.112480][ T254] inet6_rtm_getroute+0x980/0xf70 [ 394.112480][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 394.112480][ T254] netlink_rcv_skb+0x130/0x360 [ 394.112480][ T254] netlink_unicast+0x449/0x710 [ 394.112480][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.112480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.112480][ T254] ___sys_sendmsg+0xee/0x170 [ 394.112480][ T254] __sys_sendmsg+0xcd/0x170 [ 394.112480][ T254] do_syscall_64+0xc6/0x1e0 [ 394.112480][ T254] [ 394.114953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.114953][ T254] netdev_get_by_index+0x5e/0x80 [ 394.114953][ T254] fib6_nh_init+0x3d8/0x1580 [ 394.114953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 394.114953][ T254] addrconf_f6i_alloc+0x265/0x560 [ 394.114953][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 394.114953][ T254] addrconf_join_anycast+0x1c0/0x220 [ 394.114953][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 394.114953][ T254] addrconf_dad_completed+0x12b/0xe20 [ 394.114953][ T254] addrconf_dad_begin+0x310/0x670 [ 394.114953][ T254] addrconf_dad_work+0x10b/0xab0 [ 394.114953][ T254] process_one_work+0x84d/0x18a0 [ 394.114953][ T254] worker_thread+0x587/0xd30 [ 394.114953][ T254] kthread+0x28a/0x350 [ 394.114953][ T254] ret_from_fork+0x31/0x70 [ 394.114953][ T254] ret_from_fork_asm+0x1a/0x30 [ 394.114953][ T254] [ 394.117368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.117368][ T254] netdev_get_by_index+0x5e/0x80 [ 394.117368][ T254] fib6_nh_init+0x3d8/0x1580 [ 394.117368][ T254] ip6_route_info_create+0xf18/0x17d0 [ 394.117368][ T254] ip6_route_add+0x1c/0x140 [ 394.117368][ T254] addrconf_prefix_route+0x2a6/0x430 [ 394.117368][ T254] inet6_addr_add+0x4f8/0xa40 [ 394.117368][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 394.117368][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 394.117368][ T254] netlink_rcv_skb+0x130/0x360 [ 394.117368][ T254] netlink_unicast+0x449/0x710 [ 394.117368][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.117368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.117368][ T254] ___sys_sendmsg+0xee/0x170 [ 394.117368][ T254] __sys_sendmsg+0xcd/0x170 [ 394.117368][ T254] do_syscall_64+0xc6/0x1e0 [ 394.117368][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 394.117368][ T254] [ 394.119857][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.119857][ T254] netdev_get_by_index+0x5e/0x80 [ 394.119857][ T254] fib6_nh_init+0x3d8/0x1580 [ 394.119857][ T254] ip6_route_info_create+0xf18/0x17d0 [ 394.119857][ T254] addrconf_f6i_alloc+0x315/0x560 [ 394.119857][ T254] ipv6_add_addr+0x411/0x2000 [ 394.119857][ T254] inet6_addr_add+0x30e/0xa40 [ 394.119857][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 394.119857][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 394.119857][ T254] netlink_rcv_skb+0x130/0x360 [ 394.119857][ T254] netlink_unicast+0x449/0x710 [ 394.119857][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.119857][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.119857][ T254] ___sys_sendmsg+0xee/0x170 [ 394.119857][ T254] __sys_sendmsg+0xcd/0x170 [ 394.119857][ T254] do_syscall_64+0xc6/0x1e0 [ 394.119857][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 394.119857][ T254] [ 394.122248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.122248][ T254] netdev_get_by_index+0x5e/0x80 [ 394.122248][ T254] fib6_nh_init+0x3d8/0x1580 [ 394.122248][ T254] ip6_route_info_create+0xf18/0x17d0 [ 394.122248][ T254] ip6_route_add+0x1c/0x140 [ 394.122248][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 394.122248][ T254] addrconf_add_dev+0xe2/0x170 [ 394.122248][ T254] inet6_addr_add+0x12f/0xa40 [ 394.122248][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 394.122248][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 394.122248][ T254] netlink_rcv_skb+0x130/0x360 [ 394.122248][ T254] netlink_unicast+0x449/0x710 [ 394.122248][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.122248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.122248][ T254] ___sys_sendmsg+0xee/0x170 [ 394.122248][ T254] __sys_sendmsg+0xcd/0x170 [ 394.122248][ T254] do_syscall_64+0xc6/0x1e0 [ 394.122248][ T254] [ 394.124514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.124514][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 394.124514][ T254] ipv6_find_idev+0x102/0x170 [ 394.124514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 394.124514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 394.124514][ T254] netlink_rcv_skb+0x130/0x360 [ 394.124514][ T254] netlink_unicast+0x449/0x710 [ 394.124514][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.124514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.124514][ T254] ___sys_sendmsg+0xee/0x170 [ 394.124514][ T254] __sys_sendmsg+0xcd/0x170 [ 394.124514][ T254] do_syscall_64+0xc6/0x1e0 [ 394.124514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 394.124514][ T254] [ 394.126430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 394.126430][ T254] neigh_parms_alloc+0x1e5/0x510 [ 394.126430][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 394.126430][ T254] ipv6_find_idev+0x102/0x170 [ 394.126430][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 394.126430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 394.126430][ T254] netlink_rcv_skb+0x130/0x360 [ 394.126430][ T254] netlink_unicast+0x449/0x710 [ 394.126430][ T254] netlink_sendmsg+0x723/0xbe0 [ 394.126430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 394.126430][ T254] ___sys_sendmsg+0xee/0x170 [ 394.126430][ T254] __sys_sendmsg+0xcd/0x170 [ 394.126430][ T254] do_syscall_64+0xc6/0x1e0 [ 394.126430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 394.126430][ T254] [ 404.215870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 404.216464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.216464][ T254] dst_init+0x84/0x4a0 [ 404.216464][ T254] dst_alloc+0x97/0x150 [ 404.216464][ T254] ip6_dst_alloc+0x23/0x90 [ 404.216464][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 404.216464][ T254] ip6_pol_route+0x56f/0x840 [ 404.216464][ T254] fib6_rule_lookup+0x334/0x630 [ 404.216464][ T254] ip6_route_output_flags+0x259/0x480 [ 404.216464][ T254] inet6_rtm_getroute+0x980/0xf70 [ 404.216464][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 404.216464][ T254] netlink_rcv_skb+0x130/0x360 [ 404.216464][ T254] netlink_unicast+0x449/0x710 [ 404.216464][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.216464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.216464][ T254] ___sys_sendmsg+0xee/0x170 [ 404.216464][ T254] __sys_sendmsg+0xcd/0x170 [ 404.216464][ T254] do_syscall_64+0xc6/0x1e0 [ 404.216464][ T254] [ 404.218709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.218709][ T254] netdev_get_by_index+0x5e/0x80 [ 404.218709][ T254] fib6_nh_init+0x3d8/0x1580 [ 404.218709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 404.218709][ T254] addrconf_f6i_alloc+0x265/0x560 [ 404.218709][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 404.218709][ T254] addrconf_join_anycast+0x1c0/0x220 [ 404.218709][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 404.218709][ T254] addrconf_dad_completed+0x12b/0xe20 [ 404.218709][ T254] addrconf_dad_begin+0x310/0x670 [ 404.218709][ T254] addrconf_dad_work+0x10b/0xab0 [ 404.218709][ T254] process_one_work+0x84d/0x18a0 [ 404.218709][ T254] worker_thread+0x587/0xd30 [ 404.218709][ T254] kthread+0x28a/0x350 [ 404.218709][ T254] ret_from_fork+0x31/0x70 [ 404.218709][ T254] ret_from_fork_asm+0x1a/0x30 [ 404.218709][ T254] [ 404.220879][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.220879][ T254] netdev_get_by_index+0x5e/0x80 [ 404.220879][ T254] fib6_nh_init+0x3d8/0x1580 [ 404.220879][ T254] ip6_route_info_create+0xf18/0x17d0 [ 404.220879][ T254] ip6_route_add+0x1c/0x140 [ 404.220879][ T254] addrconf_prefix_route+0x2a6/0x430 [ 404.220879][ T254] inet6_addr_add+0x4f8/0xa40 [ 404.220879][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 404.220879][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 404.220879][ T254] netlink_rcv_skb+0x130/0x360 [ 404.220879][ T254] netlink_unicast+0x449/0x710 [ 404.220879][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.220879][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.220879][ T254] ___sys_sendmsg+0xee/0x170 [ 404.220879][ T254] __sys_sendmsg+0xcd/0x170 [ 404.220879][ T254] do_syscall_64+0xc6/0x1e0 [ 404.220879][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 404.220879][ T254] [ 404.223167][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.223167][ T254] netdev_get_by_index+0x5e/0x80 [ 404.223167][ T254] fib6_nh_init+0x3d8/0x1580 [ 404.223167][ T254] ip6_route_info_create+0xf18/0x17d0 [ 404.223167][ T254] addrconf_f6i_alloc+0x315/0x560 [ 404.223167][ T254] ipv6_add_addr+0x411/0x2000 [ 404.223167][ T254] inet6_addr_add+0x30e/0xa40 [ 404.223167][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 404.223167][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 404.223167][ T254] netlink_rcv_skb+0x130/0x360 [ 404.223167][ T254] netlink_unicast+0x449/0x710 [ 404.223167][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.223167][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.223167][ T254] ___sys_sendmsg+0xee/0x170 [ 404.223167][ T254] __sys_sendmsg+0xcd/0x170 [ 404.223167][ T254] do_syscall_64+0xc6/0x1e0 [ 404.223167][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 404.223167][ T254] [ 404.225455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.225455][ T254] netdev_get_by_index+0x5e/0x80 [ 404.225455][ T254] fib6_nh_init+0x3d8/0x1580 [ 404.225455][ T254] ip6_route_info_create+0xf18/0x17d0 [ 404.225455][ T254] ip6_route_add+0x1c/0x140 [ 404.225455][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 404.225455][ T254] addrconf_add_dev+0xe2/0x170 [ 404.225455][ T254] inet6_addr_add+0x12f/0xa40 [ 404.225455][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 404.225455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 404.225455][ T254] netlink_rcv_skb+0x130/0x360 [ 404.225455][ T254] netlink_unicast+0x449/0x710 [ 404.225455][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.225455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.225455][ T254] ___sys_sendmsg+0xee/0x170 [ 404.225455][ T254] __sys_sendmsg+0xcd/0x170 [ 404.225455][ T254] do_syscall_64+0xc6/0x1e0 [ 404.225455][ T254] [ 404.227757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.227757][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 404.227757][ T254] ipv6_find_idev+0x102/0x170 [ 404.227757][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 404.227757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 404.227757][ T254] netlink_rcv_skb+0x130/0x360 [ 404.227757][ T254] netlink_unicast+0x449/0x710 [ 404.227757][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.227757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.227757][ T254] ___sys_sendmsg+0xee/0x170 [ 404.227757][ T254] __sys_sendmsg+0xcd/0x170 [ 404.227757][ T254] do_syscall_64+0xc6/0x1e0 [ 404.227757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 404.227757][ T254] [ 404.229539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 404.229539][ T254] neigh_parms_alloc+0x1e5/0x510 [ 404.229539][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 404.229539][ T254] ipv6_find_idev+0x102/0x170 [ 404.229539][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 404.229539][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 404.229539][ T254] netlink_rcv_skb+0x130/0x360 [ 404.229539][ T254] netlink_unicast+0x449/0x710 [ 404.229539][ T254] netlink_sendmsg+0x723/0xbe0 [ 404.229539][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 404.229539][ T254] ___sys_sendmsg+0xee/0x170 [ 404.229539][ T254] __sys_sendmsg+0xcd/0x170 [ 404.229539][ T254] do_syscall_64+0xc6/0x1e0 [ 404.229539][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 404.229539][ T254] [ 414.471921][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 414.472519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.472519][ T254] dst_init+0x84/0x4a0 [ 414.472519][ T254] dst_alloc+0x97/0x150 [ 414.472519][ T254] ip6_dst_alloc+0x23/0x90 [ 414.472519][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 414.472519][ T254] ip6_pol_route+0x56f/0x840 [ 414.472519][ T254] fib6_rule_lookup+0x334/0x630 [ 414.472519][ T254] ip6_route_output_flags+0x259/0x480 [ 414.472519][ T254] inet6_rtm_getroute+0x980/0xf70 [ 414.472519][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 414.472519][ T254] netlink_rcv_skb+0x130/0x360 [ 414.472519][ T254] netlink_unicast+0x449/0x710 [ 414.472519][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.472519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.472519][ T254] ___sys_sendmsg+0xee/0x170 [ 414.472519][ T254] __sys_sendmsg+0xcd/0x170 [ 414.472519][ T254] do_syscall_64+0xc6/0x1e0 [ 414.472519][ T254] [ 414.474789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.474789][ T254] netdev_get_by_index+0x5e/0x80 [ 414.474789][ T254] fib6_nh_init+0x3d8/0x1580 [ 414.474789][ T254] ip6_route_info_create+0xf18/0x17d0 [ 414.474789][ T254] addrconf_f6i_alloc+0x265/0x560 [ 414.474789][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 414.474789][ T254] addrconf_join_anycast+0x1c0/0x220 [ 414.474789][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 414.474789][ T254] addrconf_dad_completed+0x12b/0xe20 [ 414.474789][ T254] addrconf_dad_begin+0x310/0x670 [ 414.474789][ T254] addrconf_dad_work+0x10b/0xab0 [ 414.474789][ T254] process_one_work+0x84d/0x18a0 [ 414.474789][ T254] worker_thread+0x587/0xd30 [ 414.474789][ T254] kthread+0x28a/0x350 [ 414.474789][ T254] ret_from_fork+0x31/0x70 [ 414.474789][ T254] ret_from_fork_asm+0x1a/0x30 [ 414.474789][ T254] [ 414.476975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.476975][ T254] netdev_get_by_index+0x5e/0x80 [ 414.476975][ T254] fib6_nh_init+0x3d8/0x1580 [ 414.476975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 414.476975][ T254] ip6_route_add+0x1c/0x140 [ 414.476975][ T254] addrconf_prefix_route+0x2a6/0x430 [ 414.476975][ T254] inet6_addr_add+0x4f8/0xa40 [ 414.476975][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 414.476975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 414.476975][ T254] netlink_rcv_skb+0x130/0x360 [ 414.476975][ T254] netlink_unicast+0x449/0x710 [ 414.476975][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.476975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.476975][ T254] ___sys_sendmsg+0xee/0x170 [ 414.476975][ T254] __sys_sendmsg+0xcd/0x170 [ 414.476975][ T254] do_syscall_64+0xc6/0x1e0 [ 414.476975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 414.476975][ T254] [ 414.479253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.479253][ T254] netdev_get_by_index+0x5e/0x80 [ 414.479253][ T254] fib6_nh_init+0x3d8/0x1580 [ 414.479253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 414.479253][ T254] addrconf_f6i_alloc+0x315/0x560 [ 414.479253][ T254] ipv6_add_addr+0x411/0x2000 [ 414.479253][ T254] inet6_addr_add+0x30e/0xa40 [ 414.479253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 414.479253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 414.479253][ T254] netlink_rcv_skb+0x130/0x360 [ 414.479253][ T254] netlink_unicast+0x449/0x710 [ 414.479253][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.479253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.479253][ T254] ___sys_sendmsg+0xee/0x170 [ 414.479253][ T254] __sys_sendmsg+0xcd/0x170 [ 414.479253][ T254] do_syscall_64+0xc6/0x1e0 [ 414.479253][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 414.479253][ T254] [ 414.481538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.481538][ T254] netdev_get_by_index+0x5e/0x80 [ 414.481538][ T254] fib6_nh_init+0x3d8/0x1580 [ 414.481538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 414.481538][ T254] ip6_route_add+0x1c/0x140 [ 414.481538][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 414.481538][ T254] addrconf_add_dev+0xe2/0x170 [ 414.481538][ T254] inet6_addr_add+0x12f/0xa40 [ 414.481538][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 414.481538][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 414.481538][ T254] netlink_rcv_skb+0x130/0x360 [ 414.481538][ T254] netlink_unicast+0x449/0x710 [ 414.481538][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.481538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.481538][ T254] ___sys_sendmsg+0xee/0x170 [ 414.481538][ T254] __sys_sendmsg+0xcd/0x170 [ 414.481538][ T254] do_syscall_64+0xc6/0x1e0 [ 414.481538][ T254] [ 414.483766][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.483766][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 414.483766][ T254] ipv6_find_idev+0x102/0x170 [ 414.483766][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 414.483766][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 414.483766][ T254] netlink_rcv_skb+0x130/0x360 [ 414.483766][ T254] netlink_unicast+0x449/0x710 [ 414.483766][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.483766][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.483766][ T254] ___sys_sendmsg+0xee/0x170 [ 414.483766][ T254] __sys_sendmsg+0xcd/0x170 [ 414.483766][ T254] do_syscall_64+0xc6/0x1e0 [ 414.483766][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 414.483766][ T254] [ 414.485530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 414.485530][ T254] neigh_parms_alloc+0x1e5/0x510 [ 414.485530][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 414.485530][ T254] ipv6_find_idev+0x102/0x170 [ 414.485530][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 414.485530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 414.485530][ T254] netlink_rcv_skb+0x130/0x360 [ 414.485530][ T254] netlink_unicast+0x449/0x710 [ 414.485530][ T254] netlink_sendmsg+0x723/0xbe0 [ 414.485530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 414.485530][ T254] ___sys_sendmsg+0xee/0x170 [ 414.485530][ T254] __sys_sendmsg+0xcd/0x170 [ 414.485530][ T254] do_syscall_64+0xc6/0x1e0 [ 414.485530][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 414.485530][ T254] [ 424.511857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 424.512413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.512413][ T254] dst_init+0x84/0x4a0 [ 424.512413][ T254] dst_alloc+0x97/0x150 [ 424.512413][ T254] ip6_dst_alloc+0x23/0x90 [ 424.512413][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 424.512413][ T254] ip6_pol_route+0x56f/0x840 [ 424.512413][ T254] fib6_rule_lookup+0x334/0x630 [ 424.512413][ T254] ip6_route_output_flags+0x259/0x480 [ 424.512413][ T254] inet6_rtm_getroute+0x980/0xf70 [ 424.512413][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 424.512413][ T254] netlink_rcv_skb+0x130/0x360 [ 424.512413][ T254] netlink_unicast+0x449/0x710 [ 424.512413][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.512413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.512413][ T254] ___sys_sendmsg+0xee/0x170 [ 424.512413][ T254] __sys_sendmsg+0xcd/0x170 [ 424.512413][ T254] do_syscall_64+0xc6/0x1e0 [ 424.512413][ T254] [ 424.514625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.514625][ T254] netdev_get_by_index+0x5e/0x80 [ 424.514625][ T254] fib6_nh_init+0x3d8/0x1580 [ 424.514625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 424.514625][ T254] addrconf_f6i_alloc+0x265/0x560 [ 424.514625][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 424.514625][ T254] addrconf_join_anycast+0x1c0/0x220 [ 424.514625][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 424.514625][ T254] addrconf_dad_completed+0x12b/0xe20 [ 424.514625][ T254] addrconf_dad_begin+0x310/0x670 [ 424.514625][ T254] addrconf_dad_work+0x10b/0xab0 [ 424.514625][ T254] process_one_work+0x84d/0x18a0 [ 424.514625][ T254] worker_thread+0x587/0xd30 [ 424.514625][ T254] kthread+0x28a/0x350 [ 424.514625][ T254] ret_from_fork+0x31/0x70 [ 424.514625][ T254] ret_from_fork_asm+0x1a/0x30 [ 424.514625][ T254] [ 424.516795][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.516795][ T254] netdev_get_by_index+0x5e/0x80 [ 424.516795][ T254] fib6_nh_init+0x3d8/0x1580 [ 424.516795][ T254] ip6_route_info_create+0xf18/0x17d0 [ 424.516795][ T254] ip6_route_add+0x1c/0x140 [ 424.516795][ T254] addrconf_prefix_route+0x2a6/0x430 [ 424.516795][ T254] inet6_addr_add+0x4f8/0xa40 [ 424.516795][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 424.516795][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 424.516795][ T254] netlink_rcv_skb+0x130/0x360 [ 424.516795][ T254] netlink_unicast+0x449/0x710 [ 424.516795][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.516795][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.516795][ T254] ___sys_sendmsg+0xee/0x170 [ 424.516795][ T254] __sys_sendmsg+0xcd/0x170 [ 424.516795][ T254] do_syscall_64+0xc6/0x1e0 [ 424.516795][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 424.516795][ T254] [ 424.519057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.519057][ T254] netdev_get_by_index+0x5e/0x80 [ 424.519057][ T254] fib6_nh_init+0x3d8/0x1580 [ 424.519057][ T254] ip6_route_info_create+0xf18/0x17d0 [ 424.519057][ T254] addrconf_f6i_alloc+0x315/0x560 [ 424.519057][ T254] ipv6_add_addr+0x411/0x2000 [ 424.519057][ T254] inet6_addr_add+0x30e/0xa40 [ 424.519057][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 424.519057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 424.519057][ T254] netlink_rcv_skb+0x130/0x360 [ 424.519057][ T254] netlink_unicast+0x449/0x710 [ 424.519057][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.519057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.519057][ T254] ___sys_sendmsg+0xee/0x170 [ 424.519057][ T254] __sys_sendmsg+0xcd/0x170 [ 424.519057][ T254] do_syscall_64+0xc6/0x1e0 [ 424.519057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 424.519057][ T254] [ 424.521293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.521293][ T254] netdev_get_by_index+0x5e/0x80 [ 424.521293][ T254] fib6_nh_init+0x3d8/0x1580 [ 424.521293][ T254] ip6_route_info_create+0xf18/0x17d0 [ 424.521293][ T254] ip6_route_add+0x1c/0x140 [ 424.521293][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 424.521293][ T254] addrconf_add_dev+0xe2/0x170 [ 424.521293][ T254] inet6_addr_add+0x12f/0xa40 [ 424.521293][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 424.521293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 424.521293][ T254] netlink_rcv_skb+0x130/0x360 [ 424.521293][ T254] netlink_unicast+0x449/0x710 [ 424.521293][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.521293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.521293][ T254] ___sys_sendmsg+0xee/0x170 [ 424.521293][ T254] __sys_sendmsg+0xcd/0x170 [ 424.521293][ T254] do_syscall_64+0xc6/0x1e0 [ 424.521293][ T254] [ 424.523515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.523515][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 424.523515][ T254] ipv6_find_idev+0x102/0x170 [ 424.523515][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 424.523515][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 424.523515][ T254] netlink_rcv_skb+0x130/0x360 [ 424.523515][ T254] netlink_unicast+0x449/0x710 [ 424.523515][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.523515][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.523515][ T254] ___sys_sendmsg+0xee/0x170 [ 424.523515][ T254] __sys_sendmsg+0xcd/0x170 [ 424.523515][ T254] do_syscall_64+0xc6/0x1e0 [ 424.523515][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 424.523515][ T254] [ 424.525251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 424.525251][ T254] neigh_parms_alloc+0x1e5/0x510 [ 424.525251][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 424.525251][ T254] ipv6_find_idev+0x102/0x170 [ 424.525251][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 424.525251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 424.525251][ T254] netlink_rcv_skb+0x130/0x360 [ 424.525251][ T254] netlink_unicast+0x449/0x710 [ 424.525251][ T254] netlink_sendmsg+0x723/0xbe0 [ 424.525251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 424.525251][ T254] ___sys_sendmsg+0xee/0x170 [ 424.525251][ T254] __sys_sendmsg+0xcd/0x170 [ 424.525251][ T254] do_syscall_64+0xc6/0x1e0 [ 424.525251][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 424.525251][ T254] [ 434.591858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 434.592341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.592341][ T254] dst_init+0x84/0x4a0 [ 434.592341][ T254] dst_alloc+0x97/0x150 [ 434.592341][ T254] ip6_dst_alloc+0x23/0x90 [ 434.592341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 434.592341][ T254] ip6_pol_route+0x56f/0x840 [ 434.592341][ T254] fib6_rule_lookup+0x334/0x630 [ 434.592341][ T254] ip6_route_output_flags+0x259/0x480 [ 434.592341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 434.592341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 434.592341][ T254] netlink_rcv_skb+0x130/0x360 [ 434.592341][ T254] netlink_unicast+0x449/0x710 [ 434.592341][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.592341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.592341][ T254] ___sys_sendmsg+0xee/0x170 [ 434.592341][ T254] __sys_sendmsg+0xcd/0x170 [ 434.592341][ T254] do_syscall_64+0xc6/0x1e0 [ 434.592341][ T254] [ 434.594612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.594612][ T254] netdev_get_by_index+0x5e/0x80 [ 434.594612][ T254] fib6_nh_init+0x3d8/0x1580 [ 434.594612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 434.594612][ T254] addrconf_f6i_alloc+0x265/0x560 [ 434.594612][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 434.594612][ T254] addrconf_join_anycast+0x1c0/0x220 [ 434.594612][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 434.594612][ T254] addrconf_dad_completed+0x12b/0xe20 [ 434.594612][ T254] addrconf_dad_begin+0x310/0x670 [ 434.594612][ T254] addrconf_dad_work+0x10b/0xab0 [ 434.594612][ T254] process_one_work+0x84d/0x18a0 [ 434.594612][ T254] worker_thread+0x587/0xd30 [ 434.594612][ T254] kthread+0x28a/0x350 [ 434.594612][ T254] ret_from_fork+0x31/0x70 [ 434.594612][ T254] ret_from_fork_asm+0x1a/0x30 [ 434.594612][ T254] [ 434.596798][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.596798][ T254] netdev_get_by_index+0x5e/0x80 [ 434.596798][ T254] fib6_nh_init+0x3d8/0x1580 [ 434.596798][ T254] ip6_route_info_create+0xf18/0x17d0 [ 434.596798][ T254] ip6_route_add+0x1c/0x140 [ 434.596798][ T254] addrconf_prefix_route+0x2a6/0x430 [ 434.596798][ T254] inet6_addr_add+0x4f8/0xa40 [ 434.596798][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 434.596798][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 434.596798][ T254] netlink_rcv_skb+0x130/0x360 [ 434.596798][ T254] netlink_unicast+0x449/0x710 [ 434.596798][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.596798][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.596798][ T254] ___sys_sendmsg+0xee/0x170 [ 434.596798][ T254] __sys_sendmsg+0xcd/0x170 [ 434.596798][ T254] do_syscall_64+0xc6/0x1e0 [ 434.596798][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 434.596798][ T254] [ 434.599094][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.599094][ T254] netdev_get_by_index+0x5e/0x80 [ 434.599094][ T254] fib6_nh_init+0x3d8/0x1580 [ 434.599094][ T254] ip6_route_info_create+0xf18/0x17d0 [ 434.599094][ T254] addrconf_f6i_alloc+0x315/0x560 [ 434.599094][ T254] ipv6_add_addr+0x411/0x2000 [ 434.599094][ T254] inet6_addr_add+0x30e/0xa40 [ 434.599094][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 434.599094][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 434.599094][ T254] netlink_rcv_skb+0x130/0x360 [ 434.599094][ T254] netlink_unicast+0x449/0x710 [ 434.599094][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.599094][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.599094][ T254] ___sys_sendmsg+0xee/0x170 [ 434.599094][ T254] __sys_sendmsg+0xcd/0x170 [ 434.599094][ T254] do_syscall_64+0xc6/0x1e0 [ 434.599094][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 434.599094][ T254] [ 434.601332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.601332][ T254] netdev_get_by_index+0x5e/0x80 [ 434.601332][ T254] fib6_nh_init+0x3d8/0x1580 [ 434.601332][ T254] ip6_route_info_create+0xf18/0x17d0 [ 434.601332][ T254] ip6_route_add+0x1c/0x140 [ 434.601332][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 434.601332][ T254] addrconf_add_dev+0xe2/0x170 [ 434.601332][ T254] inet6_addr_add+0x12f/0xa40 [ 434.601332][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 434.601332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 434.601332][ T254] netlink_rcv_skb+0x130/0x360 [ 434.601332][ T254] netlink_unicast+0x449/0x710 [ 434.601332][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.601332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.601332][ T254] ___sys_sendmsg+0xee/0x170 [ 434.601332][ T254] __sys_sendmsg+0xcd/0x170 [ 434.601332][ T254] do_syscall_64+0xc6/0x1e0 [ 434.601332][ T254] [ 434.603526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.603526][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 434.603526][ T254] ipv6_find_idev+0x102/0x170 [ 434.603526][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 434.603526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 434.603526][ T254] netlink_rcv_skb+0x130/0x360 [ 434.603526][ T254] netlink_unicast+0x449/0x710 [ 434.603526][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.603526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.603526][ T254] ___sys_sendmsg+0xee/0x170 [ 434.603526][ T254] __sys_sendmsg+0xcd/0x170 [ 434.603526][ T254] do_syscall_64+0xc6/0x1e0 [ 434.603526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 434.603526][ T254] [ 434.605299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 434.605299][ T254] neigh_parms_alloc+0x1e5/0x510 [ 434.605299][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 434.605299][ T254] ipv6_find_idev+0x102/0x170 [ 434.605299][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 434.605299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 434.605299][ T254] netlink_rcv_skb+0x130/0x360 [ 434.605299][ T254] netlink_unicast+0x449/0x710 [ 434.605299][ T254] netlink_sendmsg+0x723/0xbe0 [ 434.605299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 434.605299][ T254] ___sys_sendmsg+0xee/0x170 [ 434.605299][ T254] __sys_sendmsg+0xcd/0x170 [ 434.605299][ T254] do_syscall_64+0xc6/0x1e0 [ 434.605299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 434.605299][ T254] [ 444.784007][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 444.784534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.784534][ T254] dst_init+0x84/0x4a0 [ 444.784534][ T254] dst_alloc+0x97/0x150 [ 444.784534][ T254] ip6_dst_alloc+0x23/0x90 [ 444.784534][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 444.784534][ T254] ip6_pol_route+0x56f/0x840 [ 444.784534][ T254] fib6_rule_lookup+0x334/0x630 [ 444.784534][ T254] ip6_route_output_flags+0x259/0x480 [ 444.784534][ T254] inet6_rtm_getroute+0x980/0xf70 [ 444.784534][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 444.784534][ T254] netlink_rcv_skb+0x130/0x360 [ 444.784534][ T254] netlink_unicast+0x449/0x710 [ 444.784534][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.784534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.784534][ T254] ___sys_sendmsg+0xee/0x170 [ 444.784534][ T254] __sys_sendmsg+0xcd/0x170 [ 444.784534][ T254] do_syscall_64+0xc6/0x1e0 [ 444.784534][ T254] [ 444.786814][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.786814][ T254] netdev_get_by_index+0x5e/0x80 [ 444.786814][ T254] fib6_nh_init+0x3d8/0x1580 [ 444.786814][ T254] ip6_route_info_create+0xf18/0x17d0 [ 444.786814][ T254] addrconf_f6i_alloc+0x265/0x560 [ 444.786814][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 444.786814][ T254] addrconf_join_anycast+0x1c0/0x220 [ 444.786814][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 444.786814][ T254] addrconf_dad_completed+0x12b/0xe20 [ 444.786814][ T254] addrconf_dad_begin+0x310/0x670 [ 444.786814][ T254] addrconf_dad_work+0x10b/0xab0 [ 444.786814][ T254] process_one_work+0x84d/0x18a0 [ 444.786814][ T254] worker_thread+0x587/0xd30 [ 444.786814][ T254] kthread+0x28a/0x350 [ 444.786814][ T254] ret_from_fork+0x31/0x70 [ 444.786814][ T254] ret_from_fork_asm+0x1a/0x30 [ 444.786814][ T254] [ 444.789048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.789048][ T254] netdev_get_by_index+0x5e/0x80 [ 444.789048][ T254] fib6_nh_init+0x3d8/0x1580 [ 444.789048][ T254] ip6_route_info_create+0xf18/0x17d0 [ 444.789048][ T254] ip6_route_add+0x1c/0x140 [ 444.789048][ T254] addrconf_prefix_route+0x2a6/0x430 [ 444.789048][ T254] inet6_addr_add+0x4f8/0xa40 [ 444.789048][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 444.789048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 444.789048][ T254] netlink_rcv_skb+0x130/0x360 [ 444.789048][ T254] netlink_unicast+0x449/0x710 [ 444.789048][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.789048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.789048][ T254] ___sys_sendmsg+0xee/0x170 [ 444.789048][ T254] __sys_sendmsg+0xcd/0x170 [ 444.789048][ T254] do_syscall_64+0xc6/0x1e0 [ 444.789048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 444.789048][ T254] [ 444.791338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.791338][ T254] netdev_get_by_index+0x5e/0x80 [ 444.791338][ T254] fib6_nh_init+0x3d8/0x1580 [ 444.791338][ T254] ip6_route_info_create+0xf18/0x17d0 [ 444.791338][ T254] addrconf_f6i_alloc+0x315/0x560 [ 444.791338][ T254] ipv6_add_addr+0x411/0x2000 [ 444.791338][ T254] inet6_addr_add+0x30e/0xa40 [ 444.791338][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 444.791338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 444.791338][ T254] netlink_rcv_skb+0x130/0x360 [ 444.791338][ T254] netlink_unicast+0x449/0x710 [ 444.791338][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.791338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.791338][ T254] ___sys_sendmsg+0xee/0x170 [ 444.791338][ T254] __sys_sendmsg+0xcd/0x170 [ 444.791338][ T254] do_syscall_64+0xc6/0x1e0 [ 444.791338][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 444.791338][ T254] [ 444.793601][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.793601][ T254] netdev_get_by_index+0x5e/0x80 [ 444.793601][ T254] fib6_nh_init+0x3d8/0x1580 [ 444.793601][ T254] ip6_route_info_create+0xf18/0x17d0 [ 444.793601][ T254] ip6_route_add+0x1c/0x140 [ 444.793601][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 444.793601][ T254] addrconf_add_dev+0xe2/0x170 [ 444.793601][ T254] inet6_addr_add+0x12f/0xa40 [ 444.793601][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 444.793601][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 444.793601][ T254] netlink_rcv_skb+0x130/0x360 [ 444.793601][ T254] netlink_unicast+0x449/0x710 [ 444.793601][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.793601][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.793601][ T254] ___sys_sendmsg+0xee/0x170 [ 444.793601][ T254] __sys_sendmsg+0xcd/0x170 [ 444.793601][ T254] do_syscall_64+0xc6/0x1e0 [ 444.793601][ T254] [ 444.795856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.795856][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 444.795856][ T254] ipv6_find_idev+0x102/0x170 [ 444.795856][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 444.795856][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 444.795856][ T254] netlink_rcv_skb+0x130/0x360 [ 444.795856][ T254] netlink_unicast+0x449/0x710 [ 444.795856][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.795856][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.795856][ T254] ___sys_sendmsg+0xee/0x170 [ 444.795856][ T254] __sys_sendmsg+0xcd/0x170 [ 444.795856][ T254] do_syscall_64+0xc6/0x1e0 [ 444.795856][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 444.795856][ T254] [ 444.797661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 444.797661][ T254] neigh_parms_alloc+0x1e5/0x510 [ 444.797661][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 444.797661][ T254] ipv6_find_idev+0x102/0x170 [ 444.797661][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 444.797661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 444.797661][ T254] netlink_rcv_skb+0x130/0x360 [ 444.797661][ T254] netlink_unicast+0x449/0x710 [ 444.797661][ T254] netlink_sendmsg+0x723/0xbe0 [ 444.797661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 444.797661][ T254] ___sys_sendmsg+0xee/0x170 [ 444.797661][ T254] __sys_sendmsg+0xcd/0x170 [ 444.797661][ T254] do_syscall_64+0xc6/0x1e0 [ 444.797661][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 444.797661][ T254] [ 455.047869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 455.048369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.048369][ T254] dst_init+0x84/0x4a0 [ 455.048369][ T254] dst_alloc+0x97/0x150 [ 455.048369][ T254] ip6_dst_alloc+0x23/0x90 [ 455.048369][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 455.048369][ T254] ip6_pol_route+0x56f/0x840 [ 455.048369][ T254] fib6_rule_lookup+0x334/0x630 [ 455.048369][ T254] ip6_route_output_flags+0x259/0x480 [ 455.048369][ T254] inet6_rtm_getroute+0x980/0xf70 [ 455.048369][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 455.048369][ T254] netlink_rcv_skb+0x130/0x360 [ 455.048369][ T254] netlink_unicast+0x449/0x710 [ 455.048369][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.048369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.048369][ T254] ___sys_sendmsg+0xee/0x170 [ 455.048369][ T254] __sys_sendmsg+0xcd/0x170 [ 455.048369][ T254] do_syscall_64+0xc6/0x1e0 [ 455.048369][ T254] [ 455.050628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.050628][ T254] netdev_get_by_index+0x5e/0x80 [ 455.050628][ T254] fib6_nh_init+0x3d8/0x1580 [ 455.050628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 455.050628][ T254] addrconf_f6i_alloc+0x265/0x560 [ 455.050628][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 455.050628][ T254] addrconf_join_anycast+0x1c0/0x220 [ 455.050628][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 455.050628][ T254] addrconf_dad_completed+0x12b/0xe20 [ 455.050628][ T254] addrconf_dad_begin+0x310/0x670 [ 455.050628][ T254] addrconf_dad_work+0x10b/0xab0 [ 455.050628][ T254] process_one_work+0x84d/0x18a0 [ 455.050628][ T254] worker_thread+0x587/0xd30 [ 455.050628][ T254] kthread+0x28a/0x350 [ 455.050628][ T254] ret_from_fork+0x31/0x70 [ 455.050628][ T254] ret_from_fork_asm+0x1a/0x30 [ 455.050628][ T254] [ 455.052804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.052804][ T254] netdev_get_by_index+0x5e/0x80 [ 455.052804][ T254] fib6_nh_init+0x3d8/0x1580 [ 455.052804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 455.052804][ T254] ip6_route_add+0x1c/0x140 [ 455.052804][ T254] addrconf_prefix_route+0x2a6/0x430 [ 455.052804][ T254] inet6_addr_add+0x4f8/0xa40 [ 455.052804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 455.052804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 455.052804][ T254] netlink_rcv_skb+0x130/0x360 [ 455.052804][ T254] netlink_unicast+0x449/0x710 [ 455.052804][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.052804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.052804][ T254] ___sys_sendmsg+0xee/0x170 [ 455.052804][ T254] __sys_sendmsg+0xcd/0x170 [ 455.052804][ T254] do_syscall_64+0xc6/0x1e0 [ 455.052804][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 455.052804][ T254] [ 455.055275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.055275][ T254] netdev_get_by_index+0x5e/0x80 [ 455.055275][ T254] fib6_nh_init+0x3d8/0x1580 [ 455.055275][ T254] ip6_route_info_create+0xf18/0x17d0 [ 455.055275][ T254] addrconf_f6i_alloc+0x315/0x560 [ 455.055275][ T254] ipv6_add_addr+0x411/0x2000 [ 455.055275][ T254] inet6_addr_add+0x30e/0xa40 [ 455.055275][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 455.055275][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 455.055275][ T254] netlink_rcv_skb+0x130/0x360 [ 455.055275][ T254] netlink_unicast+0x449/0x710 [ 455.055275][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.055275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.055275][ T254] ___sys_sendmsg+0xee/0x170 [ 455.055275][ T254] __sys_sendmsg+0xcd/0x170 [ 455.055275][ T254] do_syscall_64+0xc6/0x1e0 [ 455.055275][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 455.055275][ T254] [ 455.057587][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.057587][ T254] netdev_get_by_index+0x5e/0x80 [ 455.057587][ T254] fib6_nh_init+0x3d8/0x1580 [ 455.057587][ T254] ip6_route_info_create+0xf18/0x17d0 [ 455.057587][ T254] ip6_route_add+0x1c/0x140 [ 455.057587][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 455.057587][ T254] addrconf_add_dev+0xe2/0x170 [ 455.057587][ T254] inet6_addr_add+0x12f/0xa40 [ 455.057587][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 455.057587][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 455.057587][ T254] netlink_rcv_skb+0x130/0x360 [ 455.057587][ T254] netlink_unicast+0x449/0x710 [ 455.057587][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.057587][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.057587][ T254] ___sys_sendmsg+0xee/0x170 [ 455.057587][ T254] __sys_sendmsg+0xcd/0x170 [ 455.057587][ T254] do_syscall_64+0xc6/0x1e0 [ 455.057587][ T254] [ 455.059855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.059855][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 455.059855][ T254] ipv6_find_idev+0x102/0x170 [ 455.059855][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 455.059855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 455.059855][ T254] netlink_rcv_skb+0x130/0x360 [ 455.059855][ T254] netlink_unicast+0x449/0x710 [ 455.059855][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.059855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.059855][ T254] ___sys_sendmsg+0xee/0x170 [ 455.059855][ T254] __sys_sendmsg+0xcd/0x170 [ 455.059855][ T254] do_syscall_64+0xc6/0x1e0 [ 455.059855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 455.059855][ T254] [ 455.061642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 455.061642][ T254] neigh_parms_alloc+0x1e5/0x510 [ 455.061642][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 455.061642][ T254] ipv6_find_idev+0x102/0x170 [ 455.061642][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 455.061642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 455.061642][ T254] netlink_rcv_skb+0x130/0x360 [ 455.061642][ T254] netlink_unicast+0x449/0x710 [ 455.061642][ T254] netlink_sendmsg+0x723/0xbe0 [ 455.061642][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 455.061642][ T254] ___sys_sendmsg+0xee/0x170 [ 455.061642][ T254] __sys_sendmsg+0xcd/0x170 [ 455.061642][ T254] do_syscall_64+0xc6/0x1e0 [ 455.061642][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 455.061642][ T254] [ 465.311872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 465.312429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.312429][ T254] dst_init+0x84/0x4a0 [ 465.312429][ T254] dst_alloc+0x97/0x150 [ 465.312429][ T254] ip6_dst_alloc+0x23/0x90 [ 465.312429][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 465.312429][ T254] ip6_pol_route+0x56f/0x840 [ 465.312429][ T254] fib6_rule_lookup+0x334/0x630 [ 465.312429][ T254] ip6_route_output_flags+0x259/0x480 [ 465.312429][ T254] inet6_rtm_getroute+0x980/0xf70 [ 465.312429][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 465.312429][ T254] netlink_rcv_skb+0x130/0x360 [ 465.312429][ T254] netlink_unicast+0x449/0x710 [ 465.312429][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.312429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.312429][ T254] ___sys_sendmsg+0xee/0x170 [ 465.312429][ T254] __sys_sendmsg+0xcd/0x170 [ 465.312429][ T254] do_syscall_64+0xc6/0x1e0 [ 465.312429][ T254] [ 465.314750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.314750][ T254] netdev_get_by_index+0x5e/0x80 [ 465.314750][ T254] fib6_nh_init+0x3d8/0x1580 [ 465.314750][ T254] ip6_route_info_create+0xf18/0x17d0 [ 465.314750][ T254] addrconf_f6i_alloc+0x265/0x560 [ 465.314750][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 465.314750][ T254] addrconf_join_anycast+0x1c0/0x220 [ 465.314750][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 465.314750][ T254] addrconf_dad_completed+0x12b/0xe20 [ 465.314750][ T254] addrconf_dad_begin+0x310/0x670 [ 465.314750][ T254] addrconf_dad_work+0x10b/0xab0 [ 465.314750][ T254] process_one_work+0x84d/0x18a0 [ 465.314750][ T254] worker_thread+0x587/0xd30 [ 465.314750][ T254] kthread+0x28a/0x350 [ 465.314750][ T254] ret_from_fork+0x31/0x70 [ 465.314750][ T254] ret_from_fork_asm+0x1a/0x30 [ 465.314750][ T254] [ 465.316974][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.316974][ T254] netdev_get_by_index+0x5e/0x80 [ 465.316974][ T254] fib6_nh_init+0x3d8/0x1580 [ 465.316974][ T254] ip6_route_info_create+0xf18/0x17d0 [ 465.316974][ T254] ip6_route_add+0x1c/0x140 [ 465.316974][ T254] addrconf_prefix_route+0x2a6/0x430 [ 465.316974][ T254] inet6_addr_add+0x4f8/0xa40 [ 465.316974][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 465.316974][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 465.316974][ T254] netlink_rcv_skb+0x130/0x360 [ 465.316974][ T254] netlink_unicast+0x449/0x710 [ 465.316974][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.316974][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.316974][ T254] ___sys_sendmsg+0xee/0x170 [ 465.316974][ T254] __sys_sendmsg+0xcd/0x170 [ 465.316974][ T254] do_syscall_64+0xc6/0x1e0 [ 465.316974][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 465.316974][ T254] [ 465.319293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.319293][ T254] netdev_get_by_index+0x5e/0x80 [ 465.319293][ T254] fib6_nh_init+0x3d8/0x1580 [ 465.319293][ T254] ip6_route_info_create+0xf18/0x17d0 [ 465.319293][ T254] addrconf_f6i_alloc+0x315/0x560 [ 465.319293][ T254] ipv6_add_addr+0x411/0x2000 [ 465.319293][ T254] inet6_addr_add+0x30e/0xa40 [ 465.319293][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 465.319293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 465.319293][ T254] netlink_rcv_skb+0x130/0x360 [ 465.319293][ T254] netlink_unicast+0x449/0x710 [ 465.319293][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.319293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.319293][ T254] ___sys_sendmsg+0xee/0x170 [ 465.319293][ T254] __sys_sendmsg+0xcd/0x170 [ 465.319293][ T254] do_syscall_64+0xc6/0x1e0 [ 465.319293][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 465.319293][ T254] [ 465.321611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.321611][ T254] netdev_get_by_index+0x5e/0x80 [ 465.321611][ T254] fib6_nh_init+0x3d8/0x1580 [ 465.321611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 465.321611][ T254] ip6_route_add+0x1c/0x140 [ 465.321611][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 465.321611][ T254] addrconf_add_dev+0xe2/0x170 [ 465.321611][ T254] inet6_addr_add+0x12f/0xa40 [ 465.321611][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 465.321611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 465.321611][ T254] netlink_rcv_skb+0x130/0x360 [ 465.321611][ T254] netlink_unicast+0x449/0x710 [ 465.321611][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.321611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.321611][ T254] ___sys_sendmsg+0xee/0x170 [ 465.321611][ T254] __sys_sendmsg+0xcd/0x170 [ 465.321611][ T254] do_syscall_64+0xc6/0x1e0 [ 465.321611][ T254] [ 465.323874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.323874][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 465.323874][ T254] ipv6_find_idev+0x102/0x170 [ 465.323874][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 465.323874][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 465.323874][ T254] netlink_rcv_skb+0x130/0x360 [ 465.323874][ T254] netlink_unicast+0x449/0x710 [ 465.323874][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.323874][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.323874][ T254] ___sys_sendmsg+0xee/0x170 [ 465.323874][ T254] __sys_sendmsg+0xcd/0x170 [ 465.323874][ T254] do_syscall_64+0xc6/0x1e0 [ 465.323874][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 465.323874][ T254] [ 465.325684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 465.325684][ T254] neigh_parms_alloc+0x1e5/0x510 [ 465.325684][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 465.325684][ T254] ipv6_find_idev+0x102/0x170 [ 465.325684][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 465.325684][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 465.325684][ T254] netlink_rcv_skb+0x130/0x360 [ 465.325684][ T254] netlink_unicast+0x449/0x710 [ 465.325684][ T254] netlink_sendmsg+0x723/0xbe0 [ 465.325684][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 465.325684][ T254] ___sys_sendmsg+0xee/0x170 [ 465.325684][ T254] __sys_sendmsg+0xcd/0x170 [ 465.325684][ T254] do_syscall_64+0xc6/0x1e0 [ 465.325684][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 465.325684][ T254] [ 475.575886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 475.576456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.576456][ T254] dst_init+0x84/0x4a0 [ 475.576456][ T254] dst_alloc+0x97/0x150 [ 475.576456][ T254] ip6_dst_alloc+0x23/0x90 [ 475.576456][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 475.576456][ T254] ip6_pol_route+0x56f/0x840 [ 475.576456][ T254] fib6_rule_lookup+0x334/0x630 [ 475.576456][ T254] ip6_route_output_flags+0x259/0x480 [ 475.576456][ T254] inet6_rtm_getroute+0x980/0xf70 [ 475.576456][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 475.576456][ T254] netlink_rcv_skb+0x130/0x360 [ 475.576456][ T254] netlink_unicast+0x449/0x710 [ 475.576456][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.576456][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.576456][ T254] ___sys_sendmsg+0xee/0x170 [ 475.576456][ T254] __sys_sendmsg+0xcd/0x170 [ 475.576456][ T254] do_syscall_64+0xc6/0x1e0 [ 475.576456][ T254] [ 475.578745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.578745][ T254] netdev_get_by_index+0x5e/0x80 [ 475.578745][ T254] fib6_nh_init+0x3d8/0x1580 [ 475.578745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 475.578745][ T254] addrconf_f6i_alloc+0x265/0x560 [ 475.578745][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 475.578745][ T254] addrconf_join_anycast+0x1c0/0x220 [ 475.578745][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 475.578745][ T254] addrconf_dad_completed+0x12b/0xe20 [ 475.578745][ T254] addrconf_dad_begin+0x310/0x670 [ 475.578745][ T254] addrconf_dad_work+0x10b/0xab0 [ 475.578745][ T254] process_one_work+0x84d/0x18a0 [ 475.578745][ T254] worker_thread+0x587/0xd30 [ 475.578745][ T254] kthread+0x28a/0x350 [ 475.578745][ T254] ret_from_fork+0x31/0x70 [ 475.578745][ T254] ret_from_fork_asm+0x1a/0x30 [ 475.578745][ T254] [ 475.580968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.580968][ T254] netdev_get_by_index+0x5e/0x80 [ 475.580968][ T254] fib6_nh_init+0x3d8/0x1580 [ 475.580968][ T254] ip6_route_info_create+0xf18/0x17d0 [ 475.580968][ T254] ip6_route_add+0x1c/0x140 [ 475.580968][ T254] addrconf_prefix_route+0x2a6/0x430 [ 475.580968][ T254] inet6_addr_add+0x4f8/0xa40 [ 475.580968][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 475.580968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 475.580968][ T254] netlink_rcv_skb+0x130/0x360 [ 475.580968][ T254] netlink_unicast+0x449/0x710 [ 475.580968][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.580968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.580968][ T254] ___sys_sendmsg+0xee/0x170 [ 475.580968][ T254] __sys_sendmsg+0xcd/0x170 [ 475.580968][ T254] do_syscall_64+0xc6/0x1e0 [ 475.580968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 475.580968][ T254] [ 475.583288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.583288][ T254] netdev_get_by_index+0x5e/0x80 [ 475.583288][ T254] fib6_nh_init+0x3d8/0x1580 [ 475.583288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 475.583288][ T254] addrconf_f6i_alloc+0x315/0x560 [ 475.583288][ T254] ipv6_add_addr+0x411/0x2000 [ 475.583288][ T254] inet6_addr_add+0x30e/0xa40 [ 475.583288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 475.583288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 475.583288][ T254] netlink_rcv_skb+0x130/0x360 [ 475.583288][ T254] netlink_unicast+0x449/0x710 [ 475.583288][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.583288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.583288][ T254] ___sys_sendmsg+0xee/0x170 [ 475.583288][ T254] __sys_sendmsg+0xcd/0x170 [ 475.583288][ T254] do_syscall_64+0xc6/0x1e0 [ 475.583288][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 475.583288][ T254] [ 475.585652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.585652][ T254] netdev_get_by_index+0x5e/0x80 [ 475.585652][ T254] fib6_nh_init+0x3d8/0x1580 [ 475.585652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 475.585652][ T254] ip6_route_add+0x1c/0x140 [ 475.585652][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 475.585652][ T254] addrconf_add_dev+0xe2/0x170 [ 475.585652][ T254] inet6_addr_add+0x12f/0xa40 [ 475.585652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 475.585652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 475.585652][ T254] netlink_rcv_skb+0x130/0x360 [ 475.585652][ T254] netlink_unicast+0x449/0x710 [ 475.585652][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.585652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.585652][ T254] ___sys_sendmsg+0xee/0x170 [ 475.585652][ T254] __sys_sendmsg+0xcd/0x170 [ 475.585652][ T254] do_syscall_64+0xc6/0x1e0 [ 475.585652][ T254] [ 475.587922][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.587922][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 475.587922][ T254] ipv6_find_idev+0x102/0x170 [ 475.587922][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 475.587922][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 475.587922][ T254] netlink_rcv_skb+0x130/0x360 [ 475.587922][ T254] netlink_unicast+0x449/0x710 [ 475.587922][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.587922][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.587922][ T254] ___sys_sendmsg+0xee/0x170 [ 475.587922][ T254] __sys_sendmsg+0xcd/0x170 [ 475.587922][ T254] do_syscall_64+0xc6/0x1e0 [ 475.587922][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 475.587922][ T254] [ 475.589700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 475.589700][ T254] neigh_parms_alloc+0x1e5/0x510 [ 475.589700][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 475.589700][ T254] ipv6_find_idev+0x102/0x170 [ 475.589700][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 475.589700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 475.589700][ T254] netlink_rcv_skb+0x130/0x360 [ 475.589700][ T254] netlink_unicast+0x449/0x710 [ 475.589700][ T254] netlink_sendmsg+0x723/0xbe0 [ 475.589700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 475.589700][ T254] ___sys_sendmsg+0xee/0x170 [ 475.589700][ T254] __sys_sendmsg+0xcd/0x170 [ 475.589700][ T254] do_syscall_64+0xc6/0x1e0 [ 475.589700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 475.589700][ T254] [ 485.631932][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 485.632790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.632790][ T254] dst_init+0x84/0x4a0 [ 485.632790][ T254] dst_alloc+0x97/0x150 [ 485.632790][ T254] ip6_dst_alloc+0x23/0x90 [ 485.632790][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 485.632790][ T254] ip6_pol_route+0x56f/0x840 [ 485.632790][ T254] fib6_rule_lookup+0x334/0x630 [ 485.632790][ T254] ip6_route_output_flags+0x259/0x480 [ 485.632790][ T254] inet6_rtm_getroute+0x980/0xf70 [ 485.632790][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 485.632790][ T254] netlink_rcv_skb+0x130/0x360 [ 485.632790][ T254] netlink_unicast+0x449/0x710 [ 485.632790][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.632790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.632790][ T254] ___sys_sendmsg+0xee/0x170 [ 485.632790][ T254] __sys_sendmsg+0xcd/0x170 [ 485.632790][ T254] do_syscall_64+0xc6/0x1e0 [ 485.632790][ T254] [ 485.642158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.642158][ T254] netdev_get_by_index+0x5e/0x80 [ 485.642158][ T254] fib6_nh_init+0x3d8/0x1580 [ 485.642158][ T254] ip6_route_info_create+0xf18/0x17d0 [ 485.642158][ T254] addrconf_f6i_alloc+0x265/0x560 [ 485.642158][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 485.642158][ T254] addrconf_join_anycast+0x1c0/0x220 [ 485.642158][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 485.642158][ T254] addrconf_dad_completed+0x12b/0xe20 [ 485.642158][ T254] addrconf_dad_begin+0x310/0x670 [ 485.642158][ T254] addrconf_dad_work+0x10b/0xab0 [ 485.642158][ T254] process_one_work+0x84d/0x18a0 [ 485.642158][ T254] worker_thread+0x587/0xd30 [ 485.642158][ T254] kthread+0x28a/0x350 [ 485.642158][ T254] ret_from_fork+0x31/0x70 [ 485.642158][ T254] ret_from_fork_asm+0x1a/0x30 [ 485.642158][ T254] [ 485.645896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.645896][ T254] netdev_get_by_index+0x5e/0x80 [ 485.645896][ T254] fib6_nh_init+0x3d8/0x1580 [ 485.645896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 485.645896][ T254] ip6_route_add+0x1c/0x140 [ 485.645896][ T254] addrconf_prefix_route+0x2a6/0x430 [ 485.645896][ T254] inet6_addr_add+0x4f8/0xa40 [ 485.645896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 485.645896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 485.645896][ T254] netlink_rcv_skb+0x130/0x360 [ 485.645896][ T254] netlink_unicast+0x449/0x710 [ 485.645896][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.645896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.645896][ T254] ___sys_sendmsg+0xee/0x170 [ 485.645896][ T254] __sys_sendmsg+0xcd/0x170 [ 485.645896][ T254] do_syscall_64+0xc6/0x1e0 [ 485.645896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 485.645896][ T254] [ 485.649855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.649855][ T254] netdev_get_by_index+0x5e/0x80 [ 485.649855][ T254] fib6_nh_init+0x3d8/0x1580 [ 485.649855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 485.649855][ T254] addrconf_f6i_alloc+0x315/0x560 [ 485.649855][ T254] ipv6_add_addr+0x411/0x2000 [ 485.649855][ T254] inet6_addr_add+0x30e/0xa40 [ 485.649855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 485.649855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 485.649855][ T254] netlink_rcv_skb+0x130/0x360 [ 485.649855][ T254] netlink_unicast+0x449/0x710 [ 485.649855][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.649855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.649855][ T254] ___sys_sendmsg+0xee/0x170 [ 485.649855][ T254] __sys_sendmsg+0xcd/0x170 [ 485.649855][ T254] do_syscall_64+0xc6/0x1e0 [ 485.649855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 485.649855][ T254] [ 485.653888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.653888][ T254] netdev_get_by_index+0x5e/0x80 [ 485.653888][ T254] fib6_nh_init+0x3d8/0x1580 [ 485.653888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 485.653888][ T254] ip6_route_add+0x1c/0x140 [ 485.653888][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 485.653888][ T254] addrconf_add_dev+0xe2/0x170 [ 485.653888][ T254] inet6_addr_add+0x12f/0xa40 [ 485.653888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 485.653888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 485.653888][ T254] netlink_rcv_skb+0x130/0x360 [ 485.653888][ T254] netlink_unicast+0x449/0x710 [ 485.653888][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.653888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.653888][ T254] ___sys_sendmsg+0xee/0x170 [ 485.653888][ T254] __sys_sendmsg+0xcd/0x170 [ 485.653888][ T254] do_syscall_64+0xc6/0x1e0 [ 485.653888][ T254] [ 485.657768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.657768][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 485.657768][ T254] ipv6_find_idev+0x102/0x170 [ 485.657768][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 485.657768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 485.657768][ T254] netlink_rcv_skb+0x130/0x360 [ 485.657768][ T254] netlink_unicast+0x449/0x710 [ 485.657768][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.657768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.657768][ T254] ___sys_sendmsg+0xee/0x170 [ 485.657768][ T254] __sys_sendmsg+0xcd/0x170 [ 485.657768][ T254] do_syscall_64+0xc6/0x1e0 [ 485.657768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 485.657768][ T254] [ 485.660688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 485.660688][ T254] neigh_parms_alloc+0x1e5/0x510 [ 485.660688][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 485.660688][ T254] ipv6_find_idev+0x102/0x170 [ 485.660688][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 485.660688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 485.660688][ T254] netlink_rcv_skb+0x130/0x360 [ 485.660688][ T254] netlink_unicast+0x449/0x710 [ 485.660688][ T254] netlink_sendmsg+0x723/0xbe0 [ 485.660688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 485.660688][ T254] ___sys_sendmsg+0xee/0x170 [ 485.660688][ T254] __sys_sendmsg+0xcd/0x170 [ 485.660688][ T254] do_syscall_64+0xc6/0x1e0 [ 485.660688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 485.660688][ T254] [ 495.919901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 495.920510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.920510][ T254] dst_init+0x84/0x4a0 [ 495.920510][ T254] dst_alloc+0x97/0x150 [ 495.920510][ T254] ip6_dst_alloc+0x23/0x90 [ 495.920510][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 495.920510][ T254] ip6_pol_route+0x56f/0x840 [ 495.920510][ T254] fib6_rule_lookup+0x334/0x630 [ 495.920510][ T254] ip6_route_output_flags+0x259/0x480 [ 495.920510][ T254] inet6_rtm_getroute+0x980/0xf70 [ 495.920510][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 495.920510][ T254] netlink_rcv_skb+0x130/0x360 [ 495.920510][ T254] netlink_unicast+0x449/0x710 [ 495.920510][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.920510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.920510][ T254] ___sys_sendmsg+0xee/0x170 [ 495.920510][ T254] __sys_sendmsg+0xcd/0x170 [ 495.920510][ T254] do_syscall_64+0xc6/0x1e0 [ 495.920510][ T254] [ 495.922967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.922967][ T254] netdev_get_by_index+0x5e/0x80 [ 495.922967][ T254] fib6_nh_init+0x3d8/0x1580 [ 495.922967][ T254] ip6_route_info_create+0xf18/0x17d0 [ 495.922967][ T254] addrconf_f6i_alloc+0x265/0x560 [ 495.922967][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 495.922967][ T254] addrconf_join_anycast+0x1c0/0x220 [ 495.922967][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 495.922967][ T254] addrconf_dad_completed+0x12b/0xe20 [ 495.922967][ T254] addrconf_dad_begin+0x310/0x670 [ 495.922967][ T254] addrconf_dad_work+0x10b/0xab0 [ 495.922967][ T254] process_one_work+0x84d/0x18a0 [ 495.922967][ T254] worker_thread+0x587/0xd30 [ 495.922967][ T254] kthread+0x28a/0x350 [ 495.922967][ T254] ret_from_fork+0x31/0x70 [ 495.922967][ T254] ret_from_fork_asm+0x1a/0x30 [ 495.922967][ T254] [ 495.925357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.925357][ T254] netdev_get_by_index+0x5e/0x80 [ 495.925357][ T254] fib6_nh_init+0x3d8/0x1580 [ 495.925357][ T254] ip6_route_info_create+0xf18/0x17d0 [ 495.925357][ T254] ip6_route_add+0x1c/0x140 [ 495.925357][ T254] addrconf_prefix_route+0x2a6/0x430 [ 495.925357][ T254] inet6_addr_add+0x4f8/0xa40 [ 495.925357][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 495.925357][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 495.925357][ T254] netlink_rcv_skb+0x130/0x360 [ 495.925357][ T254] netlink_unicast+0x449/0x710 [ 495.925357][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.925357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.925357][ T254] ___sys_sendmsg+0xee/0x170 [ 495.925357][ T254] __sys_sendmsg+0xcd/0x170 [ 495.925357][ T254] do_syscall_64+0xc6/0x1e0 [ 495.925357][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 495.925357][ T254] [ 495.928286][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.928286][ T254] netdev_get_by_index+0x5e/0x80 [ 495.928286][ T254] fib6_nh_init+0x3d8/0x1580 [ 495.928286][ T254] ip6_route_info_create+0xf18/0x17d0 [ 495.928286][ T254] addrconf_f6i_alloc+0x315/0x560 [ 495.928286][ T254] ipv6_add_addr+0x411/0x2000 [ 495.928286][ T254] inet6_addr_add+0x30e/0xa40 [ 495.928286][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 495.928286][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 495.928286][ T254] netlink_rcv_skb+0x130/0x360 [ 495.928286][ T254] netlink_unicast+0x449/0x710 [ 495.928286][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.928286][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.928286][ T254] ___sys_sendmsg+0xee/0x170 [ 495.928286][ T254] __sys_sendmsg+0xcd/0x170 [ 495.928286][ T254] do_syscall_64+0xc6/0x1e0 [ 495.928286][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 495.928286][ T254] [ 495.930787][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.930787][ T254] netdev_get_by_index+0x5e/0x80 [ 495.930787][ T254] fib6_nh_init+0x3d8/0x1580 [ 495.930787][ T254] ip6_route_info_create+0xf18/0x17d0 [ 495.930787][ T254] ip6_route_add+0x1c/0x140 [ 495.930787][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 495.930787][ T254] addrconf_add_dev+0xe2/0x170 [ 495.930787][ T254] inet6_addr_add+0x12f/0xa40 [ 495.930787][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 495.930787][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 495.930787][ T254] netlink_rcv_skb+0x130/0x360 [ 495.930787][ T254] netlink_unicast+0x449/0x710 [ 495.930787][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.930787][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.930787][ T254] ___sys_sendmsg+0xee/0x170 [ 495.930787][ T254] __sys_sendmsg+0xcd/0x170 [ 495.930787][ T254] do_syscall_64+0xc6/0x1e0 [ 495.930787][ T254] [ 495.933237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.933237][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 495.933237][ T254] ipv6_find_idev+0x102/0x170 [ 495.933237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 495.933237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 495.933237][ T254] netlink_rcv_skb+0x130/0x360 [ 495.933237][ T254] netlink_unicast+0x449/0x710 [ 495.933237][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.933237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.933237][ T254] ___sys_sendmsg+0xee/0x170 [ 495.933237][ T254] __sys_sendmsg+0xcd/0x170 [ 495.933237][ T254] do_syscall_64+0xc6/0x1e0 [ 495.933237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 495.933237][ T254] [ 495.935171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 495.935171][ T254] neigh_parms_alloc+0x1e5/0x510 [ 495.935171][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 495.935171][ T254] ipv6_find_idev+0x102/0x170 [ 495.935171][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 495.935171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 495.935171][ T254] netlink_rcv_skb+0x130/0x360 [ 495.935171][ T254] netlink_unicast+0x449/0x710 [ 495.935171][ T254] netlink_sendmsg+0x723/0xbe0 [ 495.935171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 495.935171][ T254] ___sys_sendmsg+0xee/0x170 [ 495.935171][ T254] __sys_sendmsg+0xcd/0x170 [ 495.935171][ T254] do_syscall_64+0xc6/0x1e0 [ 495.935171][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 495.935171][ T254] [ 505.983890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 505.984427][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.984427][ T254] dst_init+0x84/0x4a0 [ 505.984427][ T254] dst_alloc+0x97/0x150 [ 505.984427][ T254] ip6_dst_alloc+0x23/0x90 [ 505.984427][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 505.984427][ T254] ip6_pol_route+0x56f/0x840 [ 505.984427][ T254] fib6_rule_lookup+0x334/0x630 [ 505.984427][ T254] ip6_route_output_flags+0x259/0x480 [ 505.984427][ T254] inet6_rtm_getroute+0x980/0xf70 [ 505.984427][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 505.984427][ T254] netlink_rcv_skb+0x130/0x360 [ 505.984427][ T254] netlink_unicast+0x449/0x710 [ 505.984427][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.984427][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.984427][ T254] ___sys_sendmsg+0xee/0x170 [ 505.984427][ T254] __sys_sendmsg+0xcd/0x170 [ 505.984427][ T254] do_syscall_64+0xc6/0x1e0 [ 505.984427][ T254] [ 505.986850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.986850][ T254] netdev_get_by_index+0x5e/0x80 [ 505.986850][ T254] fib6_nh_init+0x3d8/0x1580 [ 505.986850][ T254] ip6_route_info_create+0xf18/0x17d0 [ 505.986850][ T254] addrconf_f6i_alloc+0x265/0x560 [ 505.986850][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 505.986850][ T254] addrconf_join_anycast+0x1c0/0x220 [ 505.986850][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 505.986850][ T254] addrconf_dad_completed+0x12b/0xe20 [ 505.986850][ T254] addrconf_dad_begin+0x310/0x670 [ 505.986850][ T254] addrconf_dad_work+0x10b/0xab0 [ 505.986850][ T254] process_one_work+0x84d/0x18a0 [ 505.986850][ T254] worker_thread+0x587/0xd30 [ 505.986850][ T254] kthread+0x28a/0x350 [ 505.986850][ T254] ret_from_fork+0x31/0x70 [ 505.986850][ T254] ret_from_fork_asm+0x1a/0x30 [ 505.986850][ T254] [ 505.989240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.989240][ T254] netdev_get_by_index+0x5e/0x80 [ 505.989240][ T254] fib6_nh_init+0x3d8/0x1580 [ 505.989240][ T254] ip6_route_info_create+0xf18/0x17d0 [ 505.989240][ T254] ip6_route_add+0x1c/0x140 [ 505.989240][ T254] addrconf_prefix_route+0x2a6/0x430 [ 505.989240][ T254] inet6_addr_add+0x4f8/0xa40 [ 505.989240][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 505.989240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 505.989240][ T254] netlink_rcv_skb+0x130/0x360 [ 505.989240][ T254] netlink_unicast+0x449/0x710 [ 505.989240][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.989240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.989240][ T254] ___sys_sendmsg+0xee/0x170 [ 505.989240][ T254] __sys_sendmsg+0xcd/0x170 [ 505.989240][ T254] do_syscall_64+0xc6/0x1e0 [ 505.989240][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 505.989240][ T254] [ 505.991730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.991730][ T254] netdev_get_by_index+0x5e/0x80 [ 505.991730][ T254] fib6_nh_init+0x3d8/0x1580 [ 505.991730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 505.991730][ T254] addrconf_f6i_alloc+0x315/0x560 [ 505.991730][ T254] ipv6_add_addr+0x411/0x2000 [ 505.991730][ T254] inet6_addr_add+0x30e/0xa40 [ 505.991730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 505.991730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 505.991730][ T254] netlink_rcv_skb+0x130/0x360 [ 505.991730][ T254] netlink_unicast+0x449/0x710 [ 505.991730][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.991730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.991730][ T254] ___sys_sendmsg+0xee/0x170 [ 505.991730][ T254] __sys_sendmsg+0xcd/0x170 [ 505.991730][ T254] do_syscall_64+0xc6/0x1e0 [ 505.991730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 505.991730][ T254] [ 505.994212][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.994212][ T254] netdev_get_by_index+0x5e/0x80 [ 505.994212][ T254] fib6_nh_init+0x3d8/0x1580 [ 505.994212][ T254] ip6_route_info_create+0xf18/0x17d0 [ 505.994212][ T254] ip6_route_add+0x1c/0x140 [ 505.994212][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 505.994212][ T254] addrconf_add_dev+0xe2/0x170 [ 505.994212][ T254] inet6_addr_add+0x12f/0xa40 [ 505.994212][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 505.994212][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 505.994212][ T254] netlink_rcv_skb+0x130/0x360 [ 505.994212][ T254] netlink_unicast+0x449/0x710 [ 505.994212][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.994212][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.994212][ T254] ___sys_sendmsg+0xee/0x170 [ 505.994212][ T254] __sys_sendmsg+0xcd/0x170 [ 505.994212][ T254] do_syscall_64+0xc6/0x1e0 [ 505.994212][ T254] [ 505.996657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.996657][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 505.996657][ T254] ipv6_find_idev+0x102/0x170 [ 505.996657][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 505.996657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 505.996657][ T254] netlink_rcv_skb+0x130/0x360 [ 505.996657][ T254] netlink_unicast+0x449/0x710 [ 505.996657][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.996657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.996657][ T254] ___sys_sendmsg+0xee/0x170 [ 505.996657][ T254] __sys_sendmsg+0xcd/0x170 [ 505.996657][ T254] do_syscall_64+0xc6/0x1e0 [ 505.996657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 505.996657][ T254] [ 505.998573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 505.998573][ T254] neigh_parms_alloc+0x1e5/0x510 [ 505.998573][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 505.998573][ T254] ipv6_find_idev+0x102/0x170 [ 505.998573][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 505.998573][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 505.998573][ T254] netlink_rcv_skb+0x130/0x360 [ 505.998573][ T254] netlink_unicast+0x449/0x710 [ 505.998573][ T254] netlink_sendmsg+0x723/0xbe0 [ 505.998573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 505.998573][ T254] ___sys_sendmsg+0xee/0x170 [ 505.998573][ T254] __sys_sendmsg+0xcd/0x170 [ 505.998573][ T254] do_syscall_64+0xc6/0x1e0 [ 505.998573][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 505.998573][ T254] [ 516.247889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 516.248413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.248413][ T254] dst_init+0x84/0x4a0 [ 516.248413][ T254] dst_alloc+0x97/0x150 [ 516.248413][ T254] ip6_dst_alloc+0x23/0x90 [ 516.248413][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 516.248413][ T254] ip6_pol_route+0x56f/0x840 [ 516.248413][ T254] fib6_rule_lookup+0x334/0x630 [ 516.248413][ T254] ip6_route_output_flags+0x259/0x480 [ 516.248413][ T254] inet6_rtm_getroute+0x980/0xf70 [ 516.248413][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 516.248413][ T254] netlink_rcv_skb+0x130/0x360 [ 516.248413][ T254] netlink_unicast+0x449/0x710 [ 516.248413][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.248413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.248413][ T254] ___sys_sendmsg+0xee/0x170 [ 516.248413][ T254] __sys_sendmsg+0xcd/0x170 [ 516.248413][ T254] do_syscall_64+0xc6/0x1e0 [ 516.248413][ T254] [ 516.250839][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.250839][ T254] netdev_get_by_index+0x5e/0x80 [ 516.250839][ T254] fib6_nh_init+0x3d8/0x1580 [ 516.250839][ T254] ip6_route_info_create+0xf18/0x17d0 [ 516.250839][ T254] addrconf_f6i_alloc+0x265/0x560 [ 516.250839][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 516.250839][ T254] addrconf_join_anycast+0x1c0/0x220 [ 516.250839][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 516.250839][ T254] addrconf_dad_completed+0x12b/0xe20 [ 516.250839][ T254] addrconf_dad_begin+0x310/0x670 [ 516.250839][ T254] addrconf_dad_work+0x10b/0xab0 [ 516.250839][ T254] process_one_work+0x84d/0x18a0 [ 516.250839][ T254] worker_thread+0x587/0xd30 [ 516.250839][ T254] kthread+0x28a/0x350 [ 516.250839][ T254] ret_from_fork+0x31/0x70 [ 516.250839][ T254] ret_from_fork_asm+0x1a/0x30 [ 516.250839][ T254] [ 516.253222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.253222][ T254] netdev_get_by_index+0x5e/0x80 [ 516.253222][ T254] fib6_nh_init+0x3d8/0x1580 [ 516.253222][ T254] ip6_route_info_create+0xf18/0x17d0 [ 516.253222][ T254] ip6_route_add+0x1c/0x140 [ 516.253222][ T254] addrconf_prefix_route+0x2a6/0x430 [ 516.253222][ T254] inet6_addr_add+0x4f8/0xa40 [ 516.253222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 516.253222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 516.253222][ T254] netlink_rcv_skb+0x130/0x360 [ 516.253222][ T254] netlink_unicast+0x449/0x710 [ 516.253222][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.253222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.253222][ T254] ___sys_sendmsg+0xee/0x170 [ 516.253222][ T254] __sys_sendmsg+0xcd/0x170 [ 516.253222][ T254] do_syscall_64+0xc6/0x1e0 [ 516.253222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 516.253222][ T254] [ 516.255715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.255715][ T254] netdev_get_by_index+0x5e/0x80 [ 516.255715][ T254] fib6_nh_init+0x3d8/0x1580 [ 516.255715][ T254] ip6_route_info_create+0xf18/0x17d0 [ 516.255715][ T254] addrconf_f6i_alloc+0x315/0x560 [ 516.255715][ T254] ipv6_add_addr+0x411/0x2000 [ 516.255715][ T254] inet6_addr_add+0x30e/0xa40 [ 516.255715][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 516.255715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 516.255715][ T254] netlink_rcv_skb+0x130/0x360 [ 516.255715][ T254] netlink_unicast+0x449/0x710 [ 516.255715][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.255715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.255715][ T254] ___sys_sendmsg+0xee/0x170 [ 516.255715][ T254] __sys_sendmsg+0xcd/0x170 [ 516.255715][ T254] do_syscall_64+0xc6/0x1e0 [ 516.255715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 516.255715][ T254] [ 516.258198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.258198][ T254] netdev_get_by_index+0x5e/0x80 [ 516.258198][ T254] fib6_nh_init+0x3d8/0x1580 [ 516.258198][ T254] ip6_route_info_create+0xf18/0x17d0 [ 516.258198][ T254] ip6_route_add+0x1c/0x140 [ 516.258198][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 516.258198][ T254] addrconf_add_dev+0xe2/0x170 [ 516.258198][ T254] inet6_addr_add+0x12f/0xa40 [ 516.258198][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 516.258198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 516.258198][ T254] netlink_rcv_skb+0x130/0x360 [ 516.258198][ T254] netlink_unicast+0x449/0x710 [ 516.258198][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.258198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.258198][ T254] ___sys_sendmsg+0xee/0x170 [ 516.258198][ T254] __sys_sendmsg+0xcd/0x170 [ 516.258198][ T254] do_syscall_64+0xc6/0x1e0 [ 516.258198][ T254] [ 516.260630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.260630][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 516.260630][ T254] ipv6_find_idev+0x102/0x170 [ 516.260630][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 516.260630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 516.260630][ T254] netlink_rcv_skb+0x130/0x360 [ 516.260630][ T254] netlink_unicast+0x449/0x710 [ 516.260630][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.260630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.260630][ T254] ___sys_sendmsg+0xee/0x170 [ 516.260630][ T254] __sys_sendmsg+0xcd/0x170 [ 516.260630][ T254] do_syscall_64+0xc6/0x1e0 [ 516.260630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 516.260630][ T254] [ 516.262541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 516.262541][ T254] neigh_parms_alloc+0x1e5/0x510 [ 516.262541][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 516.262541][ T254] ipv6_find_idev+0x102/0x170 [ 516.262541][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 516.262541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 516.262541][ T254] netlink_rcv_skb+0x130/0x360 [ 516.262541][ T254] netlink_unicast+0x449/0x710 [ 516.262541][ T254] netlink_sendmsg+0x723/0xbe0 [ 516.262541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 516.262541][ T254] ___sys_sendmsg+0xee/0x170 [ 516.262541][ T254] __sys_sendmsg+0xcd/0x170 [ 516.262541][ T254] do_syscall_64+0xc6/0x1e0 [ 516.262541][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 516.262541][ T254] [ 526.287889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 526.288403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.288403][ T254] dst_init+0x84/0x4a0 [ 526.288403][ T254] dst_alloc+0x97/0x150 [ 526.288403][ T254] ip6_dst_alloc+0x23/0x90 [ 526.288403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 526.288403][ T254] ip6_pol_route+0x56f/0x840 [ 526.288403][ T254] fib6_rule_lookup+0x334/0x630 [ 526.288403][ T254] ip6_route_output_flags+0x259/0x480 [ 526.288403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 526.288403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 526.288403][ T254] netlink_rcv_skb+0x130/0x360 [ 526.288403][ T254] netlink_unicast+0x449/0x710 [ 526.288403][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.288403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.288403][ T254] ___sys_sendmsg+0xee/0x170 [ 526.288403][ T254] __sys_sendmsg+0xcd/0x170 [ 526.288403][ T254] do_syscall_64+0xc6/0x1e0 [ 526.288403][ T254] [ 526.290834][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.290834][ T254] netdev_get_by_index+0x5e/0x80 [ 526.290834][ T254] fib6_nh_init+0x3d8/0x1580 [ 526.290834][ T254] ip6_route_info_create+0xf18/0x17d0 [ 526.290834][ T254] addrconf_f6i_alloc+0x265/0x560 [ 526.290834][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 526.290834][ T254] addrconf_join_anycast+0x1c0/0x220 [ 526.290834][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 526.290834][ T254] addrconf_dad_completed+0x12b/0xe20 [ 526.290834][ T254] addrconf_dad_begin+0x310/0x670 [ 526.290834][ T254] addrconf_dad_work+0x10b/0xab0 [ 526.290834][ T254] process_one_work+0x84d/0x18a0 [ 526.290834][ T254] worker_thread+0x587/0xd30 [ 526.290834][ T254] kthread+0x28a/0x350 [ 526.290834][ T254] ret_from_fork+0x31/0x70 [ 526.290834][ T254] ret_from_fork_asm+0x1a/0x30 [ 526.290834][ T254] [ 526.293197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.293197][ T254] netdev_get_by_index+0x5e/0x80 [ 526.293197][ T254] fib6_nh_init+0x3d8/0x1580 [ 526.293197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 526.293197][ T254] ip6_route_add+0x1c/0x140 [ 526.293197][ T254] addrconf_prefix_route+0x2a6/0x430 [ 526.293197][ T254] inet6_addr_add+0x4f8/0xa40 [ 526.293197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 526.293197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 526.293197][ T254] netlink_rcv_skb+0x130/0x360 [ 526.293197][ T254] netlink_unicast+0x449/0x710 [ 526.293197][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.293197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.293197][ T254] ___sys_sendmsg+0xee/0x170 [ 526.293197][ T254] __sys_sendmsg+0xcd/0x170 [ 526.293197][ T254] do_syscall_64+0xc6/0x1e0 [ 526.293197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 526.293197][ T254] [ 526.295695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.295695][ T254] netdev_get_by_index+0x5e/0x80 [ 526.295695][ T254] fib6_nh_init+0x3d8/0x1580 [ 526.295695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 526.295695][ T254] addrconf_f6i_alloc+0x315/0x560 [ 526.295695][ T254] ipv6_add_addr+0x411/0x2000 [ 526.295695][ T254] inet6_addr_add+0x30e/0xa40 [ 526.295695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 526.295695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 526.295695][ T254] netlink_rcv_skb+0x130/0x360 [ 526.295695][ T254] netlink_unicast+0x449/0x710 [ 526.295695][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.295695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.295695][ T254] ___sys_sendmsg+0xee/0x170 [ 526.295695][ T254] __sys_sendmsg+0xcd/0x170 [ 526.295695][ T254] do_syscall_64+0xc6/0x1e0 [ 526.295695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 526.295695][ T254] [ 526.298183][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.298183][ T254] netdev_get_by_index+0x5e/0x80 [ 526.298183][ T254] fib6_nh_init+0x3d8/0x1580 [ 526.298183][ T254] ip6_route_info_create+0xf18/0x17d0 [ 526.298183][ T254] ip6_route_add+0x1c/0x140 [ 526.298183][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 526.298183][ T254] addrconf_add_dev+0xe2/0x170 [ 526.298183][ T254] inet6_addr_add+0x12f/0xa40 [ 526.298183][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 526.298183][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 526.298183][ T254] netlink_rcv_skb+0x130/0x360 [ 526.298183][ T254] netlink_unicast+0x449/0x710 [ 526.298183][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.298183][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.298183][ T254] ___sys_sendmsg+0xee/0x170 [ 526.298183][ T254] __sys_sendmsg+0xcd/0x170 [ 526.298183][ T254] do_syscall_64+0xc6/0x1e0 [ 526.298183][ T254] [ 526.300607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.300607][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 526.300607][ T254] ipv6_find_idev+0x102/0x170 [ 526.300607][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 526.300607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 526.300607][ T254] netlink_rcv_skb+0x130/0x360 [ 526.300607][ T254] netlink_unicast+0x449/0x710 [ 526.300607][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.300607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.300607][ T254] ___sys_sendmsg+0xee/0x170 [ 526.300607][ T254] __sys_sendmsg+0xcd/0x170 [ 526.300607][ T254] do_syscall_64+0xc6/0x1e0 [ 526.300607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 526.300607][ T254] [ 526.302513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 526.302513][ T254] neigh_parms_alloc+0x1e5/0x510 [ 526.302513][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 526.302513][ T254] ipv6_find_idev+0x102/0x170 [ 526.302513][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 526.302513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 526.302513][ T254] netlink_rcv_skb+0x130/0x360 [ 526.302513][ T254] netlink_unicast+0x449/0x710 [ 526.302513][ T254] netlink_sendmsg+0x723/0xbe0 [ 526.302513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 526.302513][ T254] ___sys_sendmsg+0xee/0x170 [ 526.302513][ T254] __sys_sendmsg+0xcd/0x170 [ 526.302513][ T254] do_syscall_64+0xc6/0x1e0 [ 526.302513][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 526.302513][ T254] [ 536.543889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 536.544357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.544357][ T254] dst_init+0x84/0x4a0 [ 536.544357][ T254] dst_alloc+0x97/0x150 [ 536.544357][ T254] ip6_dst_alloc+0x23/0x90 [ 536.544357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 536.544357][ T254] ip6_pol_route+0x56f/0x840 [ 536.544357][ T254] fib6_rule_lookup+0x334/0x630 [ 536.544357][ T254] ip6_route_output_flags+0x259/0x480 [ 536.544357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 536.544357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 536.544357][ T254] netlink_rcv_skb+0x130/0x360 [ 536.544357][ T254] netlink_unicast+0x449/0x710 [ 536.544357][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.544357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.544357][ T254] ___sys_sendmsg+0xee/0x170 [ 536.544357][ T254] __sys_sendmsg+0xcd/0x170 [ 536.544357][ T254] do_syscall_64+0xc6/0x1e0 [ 536.544357][ T254] [ 536.546779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.546779][ T254] netdev_get_by_index+0x5e/0x80 [ 536.546779][ T254] fib6_nh_init+0x3d8/0x1580 [ 536.546779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 536.546779][ T254] addrconf_f6i_alloc+0x265/0x560 [ 536.546779][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 536.546779][ T254] addrconf_join_anycast+0x1c0/0x220 [ 536.546779][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 536.546779][ T254] addrconf_dad_completed+0x12b/0xe20 [ 536.546779][ T254] addrconf_dad_begin+0x310/0x670 [ 536.546779][ T254] addrconf_dad_work+0x10b/0xab0 [ 536.546779][ T254] process_one_work+0x84d/0x18a0 [ 536.546779][ T254] worker_thread+0x587/0xd30 [ 536.546779][ T254] kthread+0x28a/0x350 [ 536.546779][ T254] ret_from_fork+0x31/0x70 [ 536.546779][ T254] ret_from_fork_asm+0x1a/0x30 [ 536.546779][ T254] [ 536.549143][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.549143][ T254] netdev_get_by_index+0x5e/0x80 [ 536.549143][ T254] fib6_nh_init+0x3d8/0x1580 [ 536.549143][ T254] ip6_route_info_create+0xf18/0x17d0 [ 536.549143][ T254] ip6_route_add+0x1c/0x140 [ 536.549143][ T254] addrconf_prefix_route+0x2a6/0x430 [ 536.549143][ T254] inet6_addr_add+0x4f8/0xa40 [ 536.549143][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 536.549143][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 536.549143][ T254] netlink_rcv_skb+0x130/0x360 [ 536.549143][ T254] netlink_unicast+0x449/0x710 [ 536.549143][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.549143][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.549143][ T254] ___sys_sendmsg+0xee/0x170 [ 536.549143][ T254] __sys_sendmsg+0xcd/0x170 [ 536.549143][ T254] do_syscall_64+0xc6/0x1e0 [ 536.549143][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 536.549143][ T254] [ 536.551601][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.551601][ T254] netdev_get_by_index+0x5e/0x80 [ 536.551601][ T254] fib6_nh_init+0x3d8/0x1580 [ 536.551601][ T254] ip6_route_info_create+0xf18/0x17d0 [ 536.551601][ T254] addrconf_f6i_alloc+0x315/0x560 [ 536.551601][ T254] ipv6_add_addr+0x411/0x2000 [ 536.551601][ T254] inet6_addr_add+0x30e/0xa40 [ 536.551601][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 536.551601][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 536.551601][ T254] netlink_rcv_skb+0x130/0x360 [ 536.551601][ T254] netlink_unicast+0x449/0x710 [ 536.551601][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.551601][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.551601][ T254] ___sys_sendmsg+0xee/0x170 [ 536.551601][ T254] __sys_sendmsg+0xcd/0x170 [ 536.551601][ T254] do_syscall_64+0xc6/0x1e0 [ 536.551601][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 536.551601][ T254] [ 536.554059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.554059][ T254] netdev_get_by_index+0x5e/0x80 [ 536.554059][ T254] fib6_nh_init+0x3d8/0x1580 [ 536.554059][ T254] ip6_route_info_create+0xf18/0x17d0 [ 536.554059][ T254] ip6_route_add+0x1c/0x140 [ 536.554059][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 536.554059][ T254] addrconf_add_dev+0xe2/0x170 [ 536.554059][ T254] inet6_addr_add+0x12f/0xa40 [ 536.554059][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 536.554059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 536.554059][ T254] netlink_rcv_skb+0x130/0x360 [ 536.554059][ T254] netlink_unicast+0x449/0x710 [ 536.554059][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.554059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.554059][ T254] ___sys_sendmsg+0xee/0x170 [ 536.554059][ T254] __sys_sendmsg+0xcd/0x170 [ 536.554059][ T254] do_syscall_64+0xc6/0x1e0 [ 536.554059][ T254] [ 536.556499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.556499][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 536.556499][ T254] ipv6_find_idev+0x102/0x170 [ 536.556499][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 536.556499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 536.556499][ T254] netlink_rcv_skb+0x130/0x360 [ 536.556499][ T254] netlink_unicast+0x449/0x710 [ 536.556499][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.556499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.556499][ T254] ___sys_sendmsg+0xee/0x170 [ 536.556499][ T254] __sys_sendmsg+0xcd/0x170 [ 536.556499][ T254] do_syscall_64+0xc6/0x1e0 [ 536.556499][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 536.556499][ T254] [ 536.558411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 536.558411][ T254] neigh_parms_alloc+0x1e5/0x510 [ 536.558411][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 536.558411][ T254] ipv6_find_idev+0x102/0x170 [ 536.558411][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 536.558411][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 536.558411][ T254] netlink_rcv_skb+0x130/0x360 [ 536.558411][ T254] netlink_unicast+0x449/0x710 [ 536.558411][ T254] netlink_sendmsg+0x723/0xbe0 [ 536.558411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 536.558411][ T254] ___sys_sendmsg+0xee/0x170 [ 536.558411][ T254] __sys_sendmsg+0xcd/0x170 [ 536.558411][ T254] do_syscall_64+0xc6/0x1e0 [ 536.558411][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 536.558411][ T254] [ 546.799876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 546.800389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.800389][ T254] dst_init+0x84/0x4a0 [ 546.800389][ T254] dst_alloc+0x97/0x150 [ 546.800389][ T254] ip6_dst_alloc+0x23/0x90 [ 546.800389][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 546.800389][ T254] ip6_pol_route+0x56f/0x840 [ 546.800389][ T254] fib6_rule_lookup+0x334/0x630 [ 546.800389][ T254] ip6_route_output_flags+0x259/0x480 [ 546.800389][ T254] inet6_rtm_getroute+0x980/0xf70 [ 546.800389][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 546.800389][ T254] netlink_rcv_skb+0x130/0x360 [ 546.800389][ T254] netlink_unicast+0x449/0x710 [ 546.800389][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.800389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.800389][ T254] ___sys_sendmsg+0xee/0x170 [ 546.800389][ T254] __sys_sendmsg+0xcd/0x170 [ 546.800389][ T254] do_syscall_64+0xc6/0x1e0 [ 546.800389][ T254] [ 546.802821][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.802821][ T254] netdev_get_by_index+0x5e/0x80 [ 546.802821][ T254] fib6_nh_init+0x3d8/0x1580 [ 546.802821][ T254] ip6_route_info_create+0xf18/0x17d0 [ 546.802821][ T254] addrconf_f6i_alloc+0x265/0x560 [ 546.802821][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 546.802821][ T254] addrconf_join_anycast+0x1c0/0x220 [ 546.802821][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 546.802821][ T254] addrconf_dad_completed+0x12b/0xe20 [ 546.802821][ T254] addrconf_dad_begin+0x310/0x670 [ 546.802821][ T254] addrconf_dad_work+0x10b/0xab0 [ 546.802821][ T254] process_one_work+0x84d/0x18a0 [ 546.802821][ T254] worker_thread+0x587/0xd30 [ 546.802821][ T254] kthread+0x28a/0x350 [ 546.802821][ T254] ret_from_fork+0x31/0x70 [ 546.802821][ T254] ret_from_fork_asm+0x1a/0x30 [ 546.802821][ T254] [ 546.805318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.805318][ T254] netdev_get_by_index+0x5e/0x80 [ 546.805318][ T254] fib6_nh_init+0x3d8/0x1580 [ 546.805318][ T254] ip6_route_info_create+0xf18/0x17d0 [ 546.805318][ T254] ip6_route_add+0x1c/0x140 [ 546.805318][ T254] addrconf_prefix_route+0x2a6/0x430 [ 546.805318][ T254] inet6_addr_add+0x4f8/0xa40 [ 546.805318][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 546.805318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 546.805318][ T254] netlink_rcv_skb+0x130/0x360 [ 546.805318][ T254] netlink_unicast+0x449/0x710 [ 546.805318][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.805318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.805318][ T254] ___sys_sendmsg+0xee/0x170 [ 546.805318][ T254] __sys_sendmsg+0xcd/0x170 [ 546.805318][ T254] do_syscall_64+0xc6/0x1e0 [ 546.805318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 546.805318][ T254] [ 546.807815][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.807815][ T254] netdev_get_by_index+0x5e/0x80 [ 546.807815][ T254] fib6_nh_init+0x3d8/0x1580 [ 546.807815][ T254] ip6_route_info_create+0xf18/0x17d0 [ 546.807815][ T254] addrconf_f6i_alloc+0x315/0x560 [ 546.807815][ T254] ipv6_add_addr+0x411/0x2000 [ 546.807815][ T254] inet6_addr_add+0x30e/0xa40 [ 546.807815][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 546.807815][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 546.807815][ T254] netlink_rcv_skb+0x130/0x360 [ 546.807815][ T254] netlink_unicast+0x449/0x710 [ 546.807815][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.807815][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.807815][ T254] ___sys_sendmsg+0xee/0x170 [ 546.807815][ T254] __sys_sendmsg+0xcd/0x170 [ 546.807815][ T254] do_syscall_64+0xc6/0x1e0 [ 546.807815][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 546.807815][ T254] [ 546.810310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.810310][ T254] netdev_get_by_index+0x5e/0x80 [ 546.810310][ T254] fib6_nh_init+0x3d8/0x1580 [ 546.810310][ T254] ip6_route_info_create+0xf18/0x17d0 [ 546.810310][ T254] ip6_route_add+0x1c/0x140 [ 546.810310][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 546.810310][ T254] addrconf_add_dev+0xe2/0x170 [ 546.810310][ T254] inet6_addr_add+0x12f/0xa40 [ 546.810310][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 546.810310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 546.810310][ T254] netlink_rcv_skb+0x130/0x360 [ 546.810310][ T254] netlink_unicast+0x449/0x710 [ 546.810310][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.810310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.810310][ T254] ___sys_sendmsg+0xee/0x170 [ 546.810310][ T254] __sys_sendmsg+0xcd/0x170 [ 546.810310][ T254] do_syscall_64+0xc6/0x1e0 [ 546.810310][ T254] [ 546.812763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.812763][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 546.812763][ T254] ipv6_find_idev+0x102/0x170 [ 546.812763][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 546.812763][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 546.812763][ T254] netlink_rcv_skb+0x130/0x360 [ 546.812763][ T254] netlink_unicast+0x449/0x710 [ 546.812763][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.812763][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.812763][ T254] ___sys_sendmsg+0xee/0x170 [ 546.812763][ T254] __sys_sendmsg+0xcd/0x170 [ 546.812763][ T254] do_syscall_64+0xc6/0x1e0 [ 546.812763][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 546.812763][ T254] [ 546.814691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 546.814691][ T254] neigh_parms_alloc+0x1e5/0x510 [ 546.814691][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 546.814691][ T254] ipv6_find_idev+0x102/0x170 [ 546.814691][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 546.814691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 546.814691][ T254] netlink_rcv_skb+0x130/0x360 [ 546.814691][ T254] netlink_unicast+0x449/0x710 [ 546.814691][ T254] netlink_sendmsg+0x723/0xbe0 [ 546.814691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 546.814691][ T254] ___sys_sendmsg+0xee/0x170 [ 546.814691][ T254] __sys_sendmsg+0xcd/0x170 [ 546.814691][ T254] do_syscall_64+0xc6/0x1e0 [ 546.814691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 546.814691][ T254] [ 557.055851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 557.056382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.056382][ T254] dst_init+0x84/0x4a0 [ 557.056382][ T254] dst_alloc+0x97/0x150 [ 557.056382][ T254] ip6_dst_alloc+0x23/0x90 [ 557.056382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 557.056382][ T254] ip6_pol_route+0x56f/0x840 [ 557.056382][ T254] fib6_rule_lookup+0x334/0x630 [ 557.056382][ T254] ip6_route_output_flags+0x259/0x480 [ 557.056382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 557.056382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 557.056382][ T254] netlink_rcv_skb+0x130/0x360 [ 557.056382][ T254] netlink_unicast+0x449/0x710 [ 557.056382][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.056382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.056382][ T254] ___sys_sendmsg+0xee/0x170 [ 557.056382][ T254] __sys_sendmsg+0xcd/0x170 [ 557.056382][ T254] do_syscall_64+0xc6/0x1e0 [ 557.056382][ T254] [ 557.058811][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.058811][ T254] netdev_get_by_index+0x5e/0x80 [ 557.058811][ T254] fib6_nh_init+0x3d8/0x1580 [ 557.058811][ T254] ip6_route_info_create+0xf18/0x17d0 [ 557.058811][ T254] addrconf_f6i_alloc+0x265/0x560 [ 557.058811][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 557.058811][ T254] addrconf_join_anycast+0x1c0/0x220 [ 557.058811][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 557.058811][ T254] addrconf_dad_completed+0x12b/0xe20 [ 557.058811][ T254] addrconf_dad_begin+0x310/0x670 [ 557.058811][ T254] addrconf_dad_work+0x10b/0xab0 [ 557.058811][ T254] process_one_work+0x84d/0x18a0 [ 557.058811][ T254] worker_thread+0x587/0xd30 [ 557.058811][ T254] kthread+0x28a/0x350 [ 557.058811][ T254] ret_from_fork+0x31/0x70 [ 557.058811][ T254] ret_from_fork_asm+0x1a/0x30 [ 557.058811][ T254] [ 557.061192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.061192][ T254] netdev_get_by_index+0x5e/0x80 [ 557.061192][ T254] fib6_nh_init+0x3d8/0x1580 [ 557.061192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 557.061192][ T254] ip6_route_add+0x1c/0x140 [ 557.061192][ T254] addrconf_prefix_route+0x2a6/0x430 [ 557.061192][ T254] inet6_addr_add+0x4f8/0xa40 [ 557.061192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 557.061192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 557.061192][ T254] netlink_rcv_skb+0x130/0x360 [ 557.061192][ T254] netlink_unicast+0x449/0x710 [ 557.061192][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.061192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.061192][ T254] ___sys_sendmsg+0xee/0x170 [ 557.061192][ T254] __sys_sendmsg+0xcd/0x170 [ 557.061192][ T254] do_syscall_64+0xc6/0x1e0 [ 557.061192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 557.061192][ T254] [ 557.063673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.063673][ T254] netdev_get_by_index+0x5e/0x80 [ 557.063673][ T254] fib6_nh_init+0x3d8/0x1580 [ 557.063673][ T254] ip6_route_info_create+0xf18/0x17d0 [ 557.063673][ T254] addrconf_f6i_alloc+0x315/0x560 [ 557.063673][ T254] ipv6_add_addr+0x411/0x2000 [ 557.063673][ T254] inet6_addr_add+0x30e/0xa40 [ 557.063673][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 557.063673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 557.063673][ T254] netlink_rcv_skb+0x130/0x360 [ 557.063673][ T254] netlink_unicast+0x449/0x710 [ 557.063673][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.063673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.063673][ T254] ___sys_sendmsg+0xee/0x170 [ 557.063673][ T254] __sys_sendmsg+0xcd/0x170 [ 557.063673][ T254] do_syscall_64+0xc6/0x1e0 [ 557.063673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 557.063673][ T254] [ 557.066188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.066188][ T254] netdev_get_by_index+0x5e/0x80 [ 557.066188][ T254] fib6_nh_init+0x3d8/0x1580 [ 557.066188][ T254] ip6_route_info_create+0xf18/0x17d0 [ 557.066188][ T254] ip6_route_add+0x1c/0x140 [ 557.066188][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 557.066188][ T254] addrconf_add_dev+0xe2/0x170 [ 557.066188][ T254] inet6_addr_add+0x12f/0xa40 [ 557.066188][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 557.066188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 557.066188][ T254] netlink_rcv_skb+0x130/0x360 [ 557.066188][ T254] netlink_unicast+0x449/0x710 [ 557.066188][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.066188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.066188][ T254] ___sys_sendmsg+0xee/0x170 [ 557.066188][ T254] __sys_sendmsg+0xcd/0x170 [ 557.066188][ T254] do_syscall_64+0xc6/0x1e0 [ 557.066188][ T254] [ 557.068618][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.068618][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 557.068618][ T254] ipv6_find_idev+0x102/0x170 [ 557.068618][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 557.068618][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 557.068618][ T254] netlink_rcv_skb+0x130/0x360 [ 557.068618][ T254] netlink_unicast+0x449/0x710 [ 557.068618][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.068618][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.068618][ T254] ___sys_sendmsg+0xee/0x170 [ 557.068618][ T254] __sys_sendmsg+0xcd/0x170 [ 557.068618][ T254] do_syscall_64+0xc6/0x1e0 [ 557.068618][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 557.068618][ T254] [ 557.070521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 557.070521][ T254] neigh_parms_alloc+0x1e5/0x510 [ 557.070521][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 557.070521][ T254] ipv6_find_idev+0x102/0x170 [ 557.070521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 557.070521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 557.070521][ T254] netlink_rcv_skb+0x130/0x360 [ 557.070521][ T254] netlink_unicast+0x449/0x710 [ 557.070521][ T254] netlink_sendmsg+0x723/0xbe0 [ 557.070521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 557.070521][ T254] ___sys_sendmsg+0xee/0x170 [ 557.070521][ T254] __sys_sendmsg+0xcd/0x170 [ 557.070521][ T254] do_syscall_64+0xc6/0x1e0 [ 557.070521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 557.070521][ T254] [ 567.311855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 567.312384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.312384][ T254] dst_init+0x84/0x4a0 [ 567.312384][ T254] dst_alloc+0x97/0x150 [ 567.312384][ T254] ip6_dst_alloc+0x23/0x90 [ 567.312384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 567.312384][ T254] ip6_pol_route+0x56f/0x840 [ 567.312384][ T254] fib6_rule_lookup+0x334/0x630 [ 567.312384][ T254] ip6_route_output_flags+0x259/0x480 [ 567.312384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 567.312384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 567.312384][ T254] netlink_rcv_skb+0x130/0x360 [ 567.312384][ T254] netlink_unicast+0x449/0x710 [ 567.312384][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.312384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.312384][ T254] ___sys_sendmsg+0xee/0x170 [ 567.312384][ T254] __sys_sendmsg+0xcd/0x170 [ 567.312384][ T254] do_syscall_64+0xc6/0x1e0 [ 567.312384][ T254] [ 567.314825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.314825][ T254] netdev_get_by_index+0x5e/0x80 [ 567.314825][ T254] fib6_nh_init+0x3d8/0x1580 [ 567.314825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 567.314825][ T254] addrconf_f6i_alloc+0x265/0x560 [ 567.314825][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 567.314825][ T254] addrconf_join_anycast+0x1c0/0x220 [ 567.314825][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 567.314825][ T254] addrconf_dad_completed+0x12b/0xe20 [ 567.314825][ T254] addrconf_dad_begin+0x310/0x670 [ 567.314825][ T254] addrconf_dad_work+0x10b/0xab0 [ 567.314825][ T254] process_one_work+0x84d/0x18a0 [ 567.314825][ T254] worker_thread+0x587/0xd30 [ 567.314825][ T254] kthread+0x28a/0x350 [ 567.314825][ T254] ret_from_fork+0x31/0x70 [ 567.314825][ T254] ret_from_fork_asm+0x1a/0x30 [ 567.314825][ T254] [ 567.317177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.317177][ T254] netdev_get_by_index+0x5e/0x80 [ 567.317177][ T254] fib6_nh_init+0x3d8/0x1580 [ 567.317177][ T254] ip6_route_info_create+0xf18/0x17d0 [ 567.317177][ T254] ip6_route_add+0x1c/0x140 [ 567.317177][ T254] addrconf_prefix_route+0x2a6/0x430 [ 567.317177][ T254] inet6_addr_add+0x4f8/0xa40 [ 567.317177][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 567.317177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 567.317177][ T254] netlink_rcv_skb+0x130/0x360 [ 567.317177][ T254] netlink_unicast+0x449/0x710 [ 567.317177][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.317177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.317177][ T254] ___sys_sendmsg+0xee/0x170 [ 567.317177][ T254] __sys_sendmsg+0xcd/0x170 [ 567.317177][ T254] do_syscall_64+0xc6/0x1e0 [ 567.317177][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 567.317177][ T254] [ 567.319643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.319643][ T254] netdev_get_by_index+0x5e/0x80 [ 567.319643][ T254] fib6_nh_init+0x3d8/0x1580 [ 567.319643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 567.319643][ T254] addrconf_f6i_alloc+0x315/0x560 [ 567.319643][ T254] ipv6_add_addr+0x411/0x2000 [ 567.319643][ T254] inet6_addr_add+0x30e/0xa40 [ 567.319643][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 567.319643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 567.319643][ T254] netlink_rcv_skb+0x130/0x360 [ 567.319643][ T254] netlink_unicast+0x449/0x710 [ 567.319643][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.319643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.319643][ T254] ___sys_sendmsg+0xee/0x170 [ 567.319643][ T254] __sys_sendmsg+0xcd/0x170 [ 567.319643][ T254] do_syscall_64+0xc6/0x1e0 [ 567.319643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 567.319643][ T254] [ 567.322129][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.322129][ T254] netdev_get_by_index+0x5e/0x80 [ 567.322129][ T254] fib6_nh_init+0x3d8/0x1580 [ 567.322129][ T254] ip6_route_info_create+0xf18/0x17d0 [ 567.322129][ T254] ip6_route_add+0x1c/0x140 [ 567.322129][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 567.322129][ T254] addrconf_add_dev+0xe2/0x170 [ 567.322129][ T254] inet6_addr_add+0x12f/0xa40 [ 567.322129][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 567.322129][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 567.322129][ T254] netlink_rcv_skb+0x130/0x360 [ 567.322129][ T254] netlink_unicast+0x449/0x710 [ 567.322129][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.322129][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.322129][ T254] ___sys_sendmsg+0xee/0x170 [ 567.322129][ T254] __sys_sendmsg+0xcd/0x170 [ 567.322129][ T254] do_syscall_64+0xc6/0x1e0 [ 567.322129][ T254] [ 567.324582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.324582][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 567.324582][ T254] ipv6_find_idev+0x102/0x170 [ 567.324582][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 567.324582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 567.324582][ T254] netlink_rcv_skb+0x130/0x360 [ 567.324582][ T254] netlink_unicast+0x449/0x710 [ 567.324582][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.324582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.324582][ T254] ___sys_sendmsg+0xee/0x170 [ 567.324582][ T254] __sys_sendmsg+0xcd/0x170 [ 567.324582][ T254] do_syscall_64+0xc6/0x1e0 [ 567.324582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 567.324582][ T254] [ 567.326482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 567.326482][ T254] neigh_parms_alloc+0x1e5/0x510 [ 567.326482][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 567.326482][ T254] ipv6_find_idev+0x102/0x170 [ 567.326482][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 567.326482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 567.326482][ T254] netlink_rcv_skb+0x130/0x360 [ 567.326482][ T254] netlink_unicast+0x449/0x710 [ 567.326482][ T254] netlink_sendmsg+0x723/0xbe0 [ 567.326482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 567.326482][ T254] ___sys_sendmsg+0xee/0x170 [ 567.326482][ T254] __sys_sendmsg+0xcd/0x170 [ 567.326482][ T254] do_syscall_64+0xc6/0x1e0 [ 567.326482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 567.326482][ T254] [ 577.567844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 577.568402][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.568402][ T254] dst_init+0x84/0x4a0 [ 577.568402][ T254] dst_alloc+0x97/0x150 [ 577.568402][ T254] ip6_dst_alloc+0x23/0x90 [ 577.568402][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 577.568402][ T254] ip6_pol_route+0x56f/0x840 [ 577.568402][ T254] fib6_rule_lookup+0x334/0x630 [ 577.568402][ T254] ip6_route_output_flags+0x259/0x480 [ 577.568402][ T254] inet6_rtm_getroute+0x980/0xf70 [ 577.568402][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 577.568402][ T254] netlink_rcv_skb+0x130/0x360 [ 577.568402][ T254] netlink_unicast+0x449/0x710 [ 577.568402][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.568402][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.568402][ T254] ___sys_sendmsg+0xee/0x170 [ 577.568402][ T254] __sys_sendmsg+0xcd/0x170 [ 577.568402][ T254] do_syscall_64+0xc6/0x1e0 [ 577.568402][ T254] [ 577.570931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.570931][ T254] netdev_get_by_index+0x5e/0x80 [ 577.570931][ T254] fib6_nh_init+0x3d8/0x1580 [ 577.570931][ T254] ip6_route_info_create+0xf18/0x17d0 [ 577.570931][ T254] addrconf_f6i_alloc+0x265/0x560 [ 577.570931][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 577.570931][ T254] addrconf_join_anycast+0x1c0/0x220 [ 577.570931][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 577.570931][ T254] addrconf_dad_completed+0x12b/0xe20 [ 577.570931][ T254] addrconf_dad_begin+0x310/0x670 [ 577.570931][ T254] addrconf_dad_work+0x10b/0xab0 [ 577.570931][ T254] process_one_work+0x84d/0x18a0 [ 577.570931][ T254] worker_thread+0x587/0xd30 [ 577.570931][ T254] kthread+0x28a/0x350 [ 577.570931][ T254] ret_from_fork+0x31/0x70 [ 577.570931][ T254] ret_from_fork_asm+0x1a/0x30 [ 577.570931][ T254] [ 577.573428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.573428][ T254] netdev_get_by_index+0x5e/0x80 [ 577.573428][ T254] fib6_nh_init+0x3d8/0x1580 [ 577.573428][ T254] ip6_route_info_create+0xf18/0x17d0 [ 577.573428][ T254] ip6_route_add+0x1c/0x140 [ 577.573428][ T254] addrconf_prefix_route+0x2a6/0x430 [ 577.573428][ T254] inet6_addr_add+0x4f8/0xa40 [ 577.573428][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 577.573428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 577.573428][ T254] netlink_rcv_skb+0x130/0x360 [ 577.573428][ T254] netlink_unicast+0x449/0x710 [ 577.573428][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.573428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.573428][ T254] ___sys_sendmsg+0xee/0x170 [ 577.573428][ T254] __sys_sendmsg+0xcd/0x170 [ 577.573428][ T254] do_syscall_64+0xc6/0x1e0 [ 577.573428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 577.573428][ T254] [ 577.576049][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.576049][ T254] netdev_get_by_index+0x5e/0x80 [ 577.576049][ T254] fib6_nh_init+0x3d8/0x1580 [ 577.576049][ T254] ip6_route_info_create+0xf18/0x17d0 [ 577.576049][ T254] addrconf_f6i_alloc+0x315/0x560 [ 577.576049][ T254] ipv6_add_addr+0x411/0x2000 [ 577.576049][ T254] inet6_addr_add+0x30e/0xa40 [ 577.576049][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 577.576049][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 577.576049][ T254] netlink_rcv_skb+0x130/0x360 [ 577.576049][ T254] netlink_unicast+0x449/0x710 [ 577.576049][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.576049][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.576049][ T254] ___sys_sendmsg+0xee/0x170 [ 577.576049][ T254] __sys_sendmsg+0xcd/0x170 [ 577.576049][ T254] do_syscall_64+0xc6/0x1e0 [ 577.576049][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 577.576049][ T254] [ 577.578626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.578626][ T254] netdev_get_by_index+0x5e/0x80 [ 577.578626][ T254] fib6_nh_init+0x3d8/0x1580 [ 577.578626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 577.578626][ T254] ip6_route_add+0x1c/0x140 [ 577.578626][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 577.578626][ T254] addrconf_add_dev+0xe2/0x170 [ 577.578626][ T254] inet6_addr_add+0x12f/0xa40 [ 577.578626][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 577.578626][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 577.578626][ T254] netlink_rcv_skb+0x130/0x360 [ 577.578626][ T254] netlink_unicast+0x449/0x710 [ 577.578626][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.578626][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.578626][ T254] ___sys_sendmsg+0xee/0x170 [ 577.578626][ T254] __sys_sendmsg+0xcd/0x170 [ 577.578626][ T254] do_syscall_64+0xc6/0x1e0 [ 577.578626][ T254] [ 577.581190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.581190][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 577.581190][ T254] ipv6_find_idev+0x102/0x170 [ 577.581190][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 577.581190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 577.581190][ T254] netlink_rcv_skb+0x130/0x360 [ 577.581190][ T254] netlink_unicast+0x449/0x710 [ 577.581190][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.581190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.581190][ T254] ___sys_sendmsg+0xee/0x170 [ 577.581190][ T254] __sys_sendmsg+0xcd/0x170 [ 577.581190][ T254] do_syscall_64+0xc6/0x1e0 [ 577.581190][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 577.581190][ T254] [ 577.583178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 577.583178][ T254] neigh_parms_alloc+0x1e5/0x510 [ 577.583178][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 577.583178][ T254] ipv6_find_idev+0x102/0x170 [ 577.583178][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 577.583178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 577.583178][ T254] netlink_rcv_skb+0x130/0x360 [ 577.583178][ T254] netlink_unicast+0x449/0x710 [ 577.583178][ T254] netlink_sendmsg+0x723/0xbe0 [ 577.583178][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 577.583178][ T254] ___sys_sendmsg+0xee/0x170 [ 577.583178][ T254] __sys_sendmsg+0xcd/0x170 [ 577.583178][ T254] do_syscall_64+0xc6/0x1e0 [ 577.583178][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 577.583178][ T254] [ 587.823841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 587.824389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.824389][ T254] dst_init+0x84/0x4a0 [ 587.824389][ T254] dst_alloc+0x97/0x150 [ 587.824389][ T254] ip6_dst_alloc+0x23/0x90 [ 587.824389][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 587.824389][ T254] ip6_pol_route+0x56f/0x840 [ 587.824389][ T254] fib6_rule_lookup+0x334/0x630 [ 587.824389][ T254] ip6_route_output_flags+0x259/0x480 [ 587.824389][ T254] inet6_rtm_getroute+0x980/0xf70 [ 587.824389][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 587.824389][ T254] netlink_rcv_skb+0x130/0x360 [ 587.824389][ T254] netlink_unicast+0x449/0x710 [ 587.824389][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.824389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.824389][ T254] ___sys_sendmsg+0xee/0x170 [ 587.824389][ T254] __sys_sendmsg+0xcd/0x170 [ 587.824389][ T254] do_syscall_64+0xc6/0x1e0 [ 587.824389][ T254] [ 587.826804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.826804][ T254] netdev_get_by_index+0x5e/0x80 [ 587.826804][ T254] fib6_nh_init+0x3d8/0x1580 [ 587.826804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 587.826804][ T254] addrconf_f6i_alloc+0x265/0x560 [ 587.826804][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 587.826804][ T254] addrconf_join_anycast+0x1c0/0x220 [ 587.826804][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 587.826804][ T254] addrconf_dad_completed+0x12b/0xe20 [ 587.826804][ T254] addrconf_dad_begin+0x310/0x670 [ 587.826804][ T254] addrconf_dad_work+0x10b/0xab0 [ 587.826804][ T254] process_one_work+0x84d/0x18a0 [ 587.826804][ T254] worker_thread+0x587/0xd30 [ 587.826804][ T254] kthread+0x28a/0x350 [ 587.826804][ T254] ret_from_fork+0x31/0x70 [ 587.826804][ T254] ret_from_fork_asm+0x1a/0x30 [ 587.826804][ T254] [ 587.829187][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.829187][ T254] netdev_get_by_index+0x5e/0x80 [ 587.829187][ T254] fib6_nh_init+0x3d8/0x1580 [ 587.829187][ T254] ip6_route_info_create+0xf18/0x17d0 [ 587.829187][ T254] ip6_route_add+0x1c/0x140 [ 587.829187][ T254] addrconf_prefix_route+0x2a6/0x430 [ 587.829187][ T254] inet6_addr_add+0x4f8/0xa40 [ 587.829187][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 587.829187][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 587.829187][ T254] netlink_rcv_skb+0x130/0x360 [ 587.829187][ T254] netlink_unicast+0x449/0x710 [ 587.829187][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.829187][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.829187][ T254] ___sys_sendmsg+0xee/0x170 [ 587.829187][ T254] __sys_sendmsg+0xcd/0x170 [ 587.829187][ T254] do_syscall_64+0xc6/0x1e0 [ 587.829187][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 587.829187][ T254] [ 587.831709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.831709][ T254] netdev_get_by_index+0x5e/0x80 [ 587.831709][ T254] fib6_nh_init+0x3d8/0x1580 [ 587.831709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 587.831709][ T254] addrconf_f6i_alloc+0x315/0x560 [ 587.831709][ T254] ipv6_add_addr+0x411/0x2000 [ 587.831709][ T254] inet6_addr_add+0x30e/0xa40 [ 587.831709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 587.831709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 587.831709][ T254] netlink_rcv_skb+0x130/0x360 [ 587.831709][ T254] netlink_unicast+0x449/0x710 [ 587.831709][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.831709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.831709][ T254] ___sys_sendmsg+0xee/0x170 [ 587.831709][ T254] __sys_sendmsg+0xcd/0x170 [ 587.831709][ T254] do_syscall_64+0xc6/0x1e0 [ 587.831709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 587.831709][ T254] [ 587.834208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.834208][ T254] netdev_get_by_index+0x5e/0x80 [ 587.834208][ T254] fib6_nh_init+0x3d8/0x1580 [ 587.834208][ T254] ip6_route_info_create+0xf18/0x17d0 [ 587.834208][ T254] ip6_route_add+0x1c/0x140 [ 587.834208][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 587.834208][ T254] addrconf_add_dev+0xe2/0x170 [ 587.834208][ T254] inet6_addr_add+0x12f/0xa40 [ 587.834208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 587.834208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 587.834208][ T254] netlink_rcv_skb+0x130/0x360 [ 587.834208][ T254] netlink_unicast+0x449/0x710 [ 587.834208][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.834208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.834208][ T254] ___sys_sendmsg+0xee/0x170 [ 587.834208][ T254] __sys_sendmsg+0xcd/0x170 [ 587.834208][ T254] do_syscall_64+0xc6/0x1e0 [ 587.834208][ T254] [ 587.836650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.836650][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 587.836650][ T254] ipv6_find_idev+0x102/0x170 [ 587.836650][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 587.836650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 587.836650][ T254] netlink_rcv_skb+0x130/0x360 [ 587.836650][ T254] netlink_unicast+0x449/0x710 [ 587.836650][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.836650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.836650][ T254] ___sys_sendmsg+0xee/0x170 [ 587.836650][ T254] __sys_sendmsg+0xcd/0x170 [ 587.836650][ T254] do_syscall_64+0xc6/0x1e0 [ 587.836650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 587.836650][ T254] [ 587.838698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 587.838698][ T254] neigh_parms_alloc+0x1e5/0x510 [ 587.838698][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 587.838698][ T254] ipv6_find_idev+0x102/0x170 [ 587.838698][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 587.838698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 587.838698][ T254] netlink_rcv_skb+0x130/0x360 [ 587.838698][ T254] netlink_unicast+0x449/0x710 [ 587.838698][ T254] netlink_sendmsg+0x723/0xbe0 [ 587.838698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 587.838698][ T254] ___sys_sendmsg+0xee/0x170 [ 587.838698][ T254] __sys_sendmsg+0xcd/0x170 [ 587.838698][ T254] do_syscall_64+0xc6/0x1e0 [ 587.838698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 587.838698][ T254] [ 598.079896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 598.080460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.080460][ T254] dst_init+0x84/0x4a0 [ 598.080460][ T254] dst_alloc+0x97/0x150 [ 598.080460][ T254] ip6_dst_alloc+0x23/0x90 [ 598.080460][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 598.080460][ T254] ip6_pol_route+0x56f/0x840 [ 598.080460][ T254] fib6_rule_lookup+0x334/0x630 [ 598.080460][ T254] ip6_route_output_flags+0x259/0x480 [ 598.080460][ T254] inet6_rtm_getroute+0x980/0xf70 [ 598.080460][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 598.080460][ T254] netlink_rcv_skb+0x130/0x360 [ 598.080460][ T254] netlink_unicast+0x449/0x710 [ 598.080460][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.080460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.080460][ T254] ___sys_sendmsg+0xee/0x170 [ 598.080460][ T254] __sys_sendmsg+0xcd/0x170 [ 598.080460][ T254] do_syscall_64+0xc6/0x1e0 [ 598.080460][ T254] [ 598.082692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.082692][ T254] netdev_get_by_index+0x5e/0x80 [ 598.082692][ T254] fib6_nh_init+0x3d8/0x1580 [ 598.082692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 598.082692][ T254] addrconf_f6i_alloc+0x265/0x560 [ 598.082692][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 598.082692][ T254] addrconf_join_anycast+0x1c0/0x220 [ 598.082692][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 598.082692][ T254] addrconf_dad_completed+0x12b/0xe20 [ 598.082692][ T254] addrconf_dad_begin+0x310/0x670 [ 598.082692][ T254] addrconf_dad_work+0x10b/0xab0 [ 598.082692][ T254] process_one_work+0x84d/0x18a0 [ 598.082692][ T254] worker_thread+0x587/0xd30 [ 598.082692][ T254] kthread+0x28a/0x350 [ 598.082692][ T254] ret_from_fork+0x31/0x70 [ 598.082692][ T254] ret_from_fork_asm+0x1a/0x30 [ 598.082692][ T254] [ 598.085311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.085311][ T254] netdev_get_by_index+0x5e/0x80 [ 598.085311][ T254] fib6_nh_init+0x3d8/0x1580 [ 598.085311][ T254] ip6_route_info_create+0xf18/0x17d0 [ 598.085311][ T254] ip6_route_add+0x1c/0x140 [ 598.085311][ T254] addrconf_prefix_route+0x2a6/0x430 [ 598.085311][ T254] inet6_addr_add+0x4f8/0xa40 [ 598.085311][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 598.085311][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 598.085311][ T254] netlink_rcv_skb+0x130/0x360 [ 598.085311][ T254] netlink_unicast+0x449/0x710 [ 598.085311][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.085311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.085311][ T254] ___sys_sendmsg+0xee/0x170 [ 598.085311][ T254] __sys_sendmsg+0xcd/0x170 [ 598.085311][ T254] do_syscall_64+0xc6/0x1e0 [ 598.085311][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 598.085311][ T254] [ 598.088752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.088752][ T254] netdev_get_by_index+0x5e/0x80 [ 598.088752][ T254] fib6_nh_init+0x3d8/0x1580 [ 598.088752][ T254] ip6_route_info_create+0xf18/0x17d0 [ 598.088752][ T254] addrconf_f6i_alloc+0x315/0x560 [ 598.088752][ T254] ipv6_add_addr+0x411/0x2000 [ 598.088752][ T254] inet6_addr_add+0x30e/0xa40 [ 598.088752][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 598.088752][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 598.088752][ T254] netlink_rcv_skb+0x130/0x360 [ 598.088752][ T254] netlink_unicast+0x449/0x710 [ 598.088752][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.088752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.088752][ T254] ___sys_sendmsg+0xee/0x170 [ 598.088752][ T254] __sys_sendmsg+0xcd/0x170 [ 598.088752][ T254] do_syscall_64+0xc6/0x1e0 [ 598.088752][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 598.088752][ T254] [ 598.092202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.092202][ T254] netdev_get_by_index+0x5e/0x80 [ 598.092202][ T254] fib6_nh_init+0x3d8/0x1580 [ 598.092202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 598.092202][ T254] ip6_route_add+0x1c/0x140 [ 598.092202][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 598.092202][ T254] addrconf_add_dev+0xe2/0x170 [ 598.092202][ T254] inet6_addr_add+0x12f/0xa40 [ 598.092202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 598.092202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 598.092202][ T254] netlink_rcv_skb+0x130/0x360 [ 598.092202][ T254] netlink_unicast+0x449/0x710 [ 598.092202][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.092202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.092202][ T254] ___sys_sendmsg+0xee/0x170 [ 598.092202][ T254] __sys_sendmsg+0xcd/0x170 [ 598.092202][ T254] do_syscall_64+0xc6/0x1e0 [ 598.092202][ T254] [ 598.095705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.095705][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 598.095705][ T254] ipv6_find_idev+0x102/0x170 [ 598.095705][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 598.095705][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 598.095705][ T254] netlink_rcv_skb+0x130/0x360 [ 598.095705][ T254] netlink_unicast+0x449/0x710 [ 598.095705][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.095705][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.095705][ T254] ___sys_sendmsg+0xee/0x170 [ 598.095705][ T254] __sys_sendmsg+0xcd/0x170 [ 598.095705][ T254] do_syscall_64+0xc6/0x1e0 [ 598.095705][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 598.095705][ T254] [ 598.098568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 598.098568][ T254] neigh_parms_alloc+0x1e5/0x510 [ 598.098568][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 598.098568][ T254] ipv6_find_idev+0x102/0x170 [ 598.098568][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 598.098568][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 598.098568][ T254] netlink_rcv_skb+0x130/0x360 [ 598.098568][ T254] netlink_unicast+0x449/0x710 [ 598.098568][ T254] netlink_sendmsg+0x723/0xbe0 [ 598.098568][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 598.098568][ T254] ___sys_sendmsg+0xee/0x170 [ 598.098568][ T254] __sys_sendmsg+0xcd/0x170 [ 598.098568][ T254] do_syscall_64+0xc6/0x1e0 [ 598.098568][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 598.098568][ T254] [ 608.343860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 608.344339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.344339][ T254] dst_init+0x84/0x4a0 [ 608.344339][ T254] dst_alloc+0x97/0x150 [ 608.344339][ T254] ip6_dst_alloc+0x23/0x90 [ 608.344339][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 608.344339][ T254] ip6_pol_route+0x56f/0x840 [ 608.344339][ T254] fib6_rule_lookup+0x334/0x630 [ 608.344339][ T254] ip6_route_output_flags+0x259/0x480 [ 608.344339][ T254] inet6_rtm_getroute+0x980/0xf70 [ 608.344339][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 608.344339][ T254] netlink_rcv_skb+0x130/0x360 [ 608.344339][ T254] netlink_unicast+0x449/0x710 [ 608.344339][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.344339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.344339][ T254] ___sys_sendmsg+0xee/0x170 [ 608.344339][ T254] __sys_sendmsg+0xcd/0x170 [ 608.344339][ T254] do_syscall_64+0xc6/0x1e0 [ 608.344339][ T254] [ 608.346804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.346804][ T254] netdev_get_by_index+0x5e/0x80 [ 608.346804][ T254] fib6_nh_init+0x3d8/0x1580 [ 608.346804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 608.346804][ T254] addrconf_f6i_alloc+0x265/0x560 [ 608.346804][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 608.346804][ T254] addrconf_join_anycast+0x1c0/0x220 [ 608.346804][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 608.346804][ T254] addrconf_dad_completed+0x12b/0xe20 [ 608.346804][ T254] addrconf_dad_begin+0x310/0x670 [ 608.346804][ T254] addrconf_dad_work+0x10b/0xab0 [ 608.346804][ T254] process_one_work+0x84d/0x18a0 [ 608.346804][ T254] worker_thread+0x587/0xd30 [ 608.346804][ T254] kthread+0x28a/0x350 [ 608.346804][ T254] ret_from_fork+0x31/0x70 [ 608.346804][ T254] ret_from_fork_asm+0x1a/0x30 [ 608.346804][ T254] [ 608.349153][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.349153][ T254] netdev_get_by_index+0x5e/0x80 [ 608.349153][ T254] fib6_nh_init+0x3d8/0x1580 [ 608.349153][ T254] ip6_route_info_create+0xf18/0x17d0 [ 608.349153][ T254] ip6_route_add+0x1c/0x140 [ 608.349153][ T254] addrconf_prefix_route+0x2a6/0x430 [ 608.349153][ T254] inet6_addr_add+0x4f8/0xa40 [ 608.349153][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 608.349153][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 608.349153][ T254] netlink_rcv_skb+0x130/0x360 [ 608.349153][ T254] netlink_unicast+0x449/0x710 [ 608.349153][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.349153][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.349153][ T254] ___sys_sendmsg+0xee/0x170 [ 608.349153][ T254] __sys_sendmsg+0xcd/0x170 [ 608.349153][ T254] do_syscall_64+0xc6/0x1e0 [ 608.349153][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 608.349153][ T254] [ 608.351591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.351591][ T254] netdev_get_by_index+0x5e/0x80 [ 608.351591][ T254] fib6_nh_init+0x3d8/0x1580 [ 608.351591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 608.351591][ T254] addrconf_f6i_alloc+0x315/0x560 [ 608.351591][ T254] ipv6_add_addr+0x411/0x2000 [ 608.351591][ T254] inet6_addr_add+0x30e/0xa40 [ 608.351591][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 608.351591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 608.351591][ T254] netlink_rcv_skb+0x130/0x360 [ 608.351591][ T254] netlink_unicast+0x449/0x710 [ 608.351591][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.351591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.351591][ T254] ___sys_sendmsg+0xee/0x170 [ 608.351591][ T254] __sys_sendmsg+0xcd/0x170 [ 608.351591][ T254] do_syscall_64+0xc6/0x1e0 [ 608.351591][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 608.351591][ T254] [ 608.354040][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.354040][ T254] netdev_get_by_index+0x5e/0x80 [ 608.354040][ T254] fib6_nh_init+0x3d8/0x1580 [ 608.354040][ T254] ip6_route_info_create+0xf18/0x17d0 [ 608.354040][ T254] ip6_route_add+0x1c/0x140 [ 608.354040][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 608.354040][ T254] addrconf_add_dev+0xe2/0x170 [ 608.354040][ T254] inet6_addr_add+0x12f/0xa40 [ 608.354040][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 608.354040][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 608.354040][ T254] netlink_rcv_skb+0x130/0x360 [ 608.354040][ T254] netlink_unicast+0x449/0x710 [ 608.354040][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.354040][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.354040][ T254] ___sys_sendmsg+0xee/0x170 [ 608.354040][ T254] __sys_sendmsg+0xcd/0x170 [ 608.354040][ T254] do_syscall_64+0xc6/0x1e0 [ 608.354040][ T254] [ 608.356482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.356482][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 608.356482][ T254] ipv6_find_idev+0x102/0x170 [ 608.356482][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 608.356482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 608.356482][ T254] netlink_rcv_skb+0x130/0x360 [ 608.356482][ T254] netlink_unicast+0x449/0x710 [ 608.356482][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.356482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.356482][ T254] ___sys_sendmsg+0xee/0x170 [ 608.356482][ T254] __sys_sendmsg+0xcd/0x170 [ 608.356482][ T254] do_syscall_64+0xc6/0x1e0 [ 608.356482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 608.356482][ T254] [ 608.358408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 608.358408][ T254] neigh_parms_alloc+0x1e5/0x510 [ 608.358408][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 608.358408][ T254] ipv6_find_idev+0x102/0x170 [ 608.358408][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 608.358408][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 608.358408][ T254] netlink_rcv_skb+0x130/0x360 [ 608.358408][ T254] netlink_unicast+0x449/0x710 [ 608.358408][ T254] netlink_sendmsg+0x723/0xbe0 [ 608.358408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 608.358408][ T254] ___sys_sendmsg+0xee/0x170 [ 608.358408][ T254] __sys_sendmsg+0xcd/0x170 [ 608.358408][ T254] do_syscall_64+0xc6/0x1e0 [ 608.358408][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 608.358408][ T254] [ 618.599841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 618.600413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.600413][ T254] dst_init+0x84/0x4a0 [ 618.600413][ T254] dst_alloc+0x97/0x150 [ 618.600413][ T254] ip6_dst_alloc+0x23/0x90 [ 618.600413][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 618.600413][ T254] ip6_pol_route+0x56f/0x840 [ 618.600413][ T254] fib6_rule_lookup+0x334/0x630 [ 618.600413][ T254] ip6_route_output_flags+0x259/0x480 [ 618.600413][ T254] inet6_rtm_getroute+0x980/0xf70 [ 618.600413][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 618.600413][ T254] netlink_rcv_skb+0x130/0x360 [ 618.600413][ T254] netlink_unicast+0x449/0x710 [ 618.600413][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.600413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.600413][ T254] ___sys_sendmsg+0xee/0x170 [ 618.600413][ T254] __sys_sendmsg+0xcd/0x170 [ 618.600413][ T254] do_syscall_64+0xc6/0x1e0 [ 618.600413][ T254] [ 618.602662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.602662][ T254] netdev_get_by_index+0x5e/0x80 [ 618.602662][ T254] fib6_nh_init+0x3d8/0x1580 [ 618.602662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 618.602662][ T254] addrconf_f6i_alloc+0x265/0x560 [ 618.602662][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 618.602662][ T254] addrconf_join_anycast+0x1c0/0x220 [ 618.602662][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 618.602662][ T254] addrconf_dad_completed+0x12b/0xe20 [ 618.602662][ T254] addrconf_dad_begin+0x310/0x670 [ 618.602662][ T254] addrconf_dad_work+0x10b/0xab0 [ 618.602662][ T254] process_one_work+0x84d/0x18a0 [ 618.602662][ T254] worker_thread+0x587/0xd30 [ 618.602662][ T254] kthread+0x28a/0x350 [ 618.602662][ T254] ret_from_fork+0x31/0x70 [ 618.602662][ T254] ret_from_fork_asm+0x1a/0x30 [ 618.602662][ T254] [ 618.604872][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.604872][ T254] netdev_get_by_index+0x5e/0x80 [ 618.604872][ T254] fib6_nh_init+0x3d8/0x1580 [ 618.604872][ T254] ip6_route_info_create+0xf18/0x17d0 [ 618.604872][ T254] ip6_route_add+0x1c/0x140 [ 618.604872][ T254] addrconf_prefix_route+0x2a6/0x430 [ 618.604872][ T254] inet6_addr_add+0x4f8/0xa40 [ 618.604872][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 618.604872][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 618.604872][ T254] netlink_rcv_skb+0x130/0x360 [ 618.604872][ T254] netlink_unicast+0x449/0x710 [ 618.604872][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.604872][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.604872][ T254] ___sys_sendmsg+0xee/0x170 [ 618.604872][ T254] __sys_sendmsg+0xcd/0x170 [ 618.604872][ T254] do_syscall_64+0xc6/0x1e0 [ 618.604872][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 618.604872][ T254] [ 618.607146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.607146][ T254] netdev_get_by_index+0x5e/0x80 [ 618.607146][ T254] fib6_nh_init+0x3d8/0x1580 [ 618.607146][ T254] ip6_route_info_create+0xf18/0x17d0 [ 618.607146][ T254] addrconf_f6i_alloc+0x315/0x560 [ 618.607146][ T254] ipv6_add_addr+0x411/0x2000 [ 618.607146][ T254] inet6_addr_add+0x30e/0xa40 [ 618.607146][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 618.607146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 618.607146][ T254] netlink_rcv_skb+0x130/0x360 [ 618.607146][ T254] netlink_unicast+0x449/0x710 [ 618.607146][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.607146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.607146][ T254] ___sys_sendmsg+0xee/0x170 [ 618.607146][ T254] __sys_sendmsg+0xcd/0x170 [ 618.607146][ T254] do_syscall_64+0xc6/0x1e0 [ 618.607146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 618.607146][ T254] [ 618.609421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.609421][ T254] netdev_get_by_index+0x5e/0x80 [ 618.609421][ T254] fib6_nh_init+0x3d8/0x1580 [ 618.609421][ T254] ip6_route_info_create+0xf18/0x17d0 [ 618.609421][ T254] ip6_route_add+0x1c/0x140 [ 618.609421][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 618.609421][ T254] addrconf_add_dev+0xe2/0x170 [ 618.609421][ T254] inet6_addr_add+0x12f/0xa40 [ 618.609421][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 618.609421][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 618.609421][ T254] netlink_rcv_skb+0x130/0x360 [ 618.609421][ T254] netlink_unicast+0x449/0x710 [ 618.609421][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.609421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.609421][ T254] ___sys_sendmsg+0xee/0x170 [ 618.609421][ T254] __sys_sendmsg+0xcd/0x170 [ 618.609421][ T254] do_syscall_64+0xc6/0x1e0 [ 618.609421][ T254] [ 618.611650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.611650][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 618.611650][ T254] ipv6_find_idev+0x102/0x170 [ 618.611650][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 618.611650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 618.611650][ T254] netlink_rcv_skb+0x130/0x360 [ 618.611650][ T254] netlink_unicast+0x449/0x710 [ 618.611650][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.611650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.611650][ T254] ___sys_sendmsg+0xee/0x170 [ 618.611650][ T254] __sys_sendmsg+0xcd/0x170 [ 618.611650][ T254] do_syscall_64+0xc6/0x1e0 [ 618.611650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 618.611650][ T254] [ 618.613397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 618.613397][ T254] neigh_parms_alloc+0x1e5/0x510 [ 618.613397][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 618.613397][ T254] ipv6_find_idev+0x102/0x170 [ 618.613397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 618.613397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 618.613397][ T254] netlink_rcv_skb+0x130/0x360 [ 618.613397][ T254] netlink_unicast+0x449/0x710 [ 618.613397][ T254] netlink_sendmsg+0x723/0xbe0 [ 618.613397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 618.613397][ T254] ___sys_sendmsg+0xee/0x170 [ 618.613397][ T254] __sys_sendmsg+0xcd/0x170 [ 618.613397][ T254] do_syscall_64+0xc6/0x1e0 [ 618.613397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 618.613397][ T254] [ 628.855918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 628.856431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.856431][ T254] dst_init+0x84/0x4a0 [ 628.856431][ T254] dst_alloc+0x97/0x150 [ 628.856431][ T254] ip6_dst_alloc+0x23/0x90 [ 628.856431][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 628.856431][ T254] ip6_pol_route+0x56f/0x840 [ 628.856431][ T254] fib6_rule_lookup+0x334/0x630 [ 628.856431][ T254] ip6_route_output_flags+0x259/0x480 [ 628.856431][ T254] inet6_rtm_getroute+0x980/0xf70 [ 628.856431][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 628.856431][ T254] netlink_rcv_skb+0x130/0x360 [ 628.856431][ T254] netlink_unicast+0x449/0x710 [ 628.856431][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.856431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.856431][ T254] ___sys_sendmsg+0xee/0x170 [ 628.856431][ T254] __sys_sendmsg+0xcd/0x170 [ 628.856431][ T254] do_syscall_64+0xc6/0x1e0 [ 628.856431][ T254] [ 628.859063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.859063][ T254] netdev_get_by_index+0x5e/0x80 [ 628.859063][ T254] fib6_nh_init+0x3d8/0x1580 [ 628.859063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 628.859063][ T254] addrconf_f6i_alloc+0x265/0x560 [ 628.859063][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 628.859063][ T254] addrconf_join_anycast+0x1c0/0x220 [ 628.859063][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 628.859063][ T254] addrconf_dad_completed+0x12b/0xe20 [ 628.859063][ T254] addrconf_dad_begin+0x310/0x670 [ 628.859063][ T254] addrconf_dad_work+0x10b/0xab0 [ 628.859063][ T254] process_one_work+0x84d/0x18a0 [ 628.859063][ T254] worker_thread+0x587/0xd30 [ 628.859063][ T254] kthread+0x28a/0x350 [ 628.859063][ T254] ret_from_fork+0x31/0x70 [ 628.859063][ T254] ret_from_fork_asm+0x1a/0x30 [ 628.859063][ T254] [ 628.861248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.861248][ T254] netdev_get_by_index+0x5e/0x80 [ 628.861248][ T254] fib6_nh_init+0x3d8/0x1580 [ 628.861248][ T254] ip6_route_info_create+0xf18/0x17d0 [ 628.861248][ T254] ip6_route_add+0x1c/0x140 [ 628.861248][ T254] addrconf_prefix_route+0x2a6/0x430 [ 628.861248][ T254] inet6_addr_add+0x4f8/0xa40 [ 628.861248][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 628.861248][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 628.861248][ T254] netlink_rcv_skb+0x130/0x360 [ 628.861248][ T254] netlink_unicast+0x449/0x710 [ 628.861248][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.861248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.861248][ T254] ___sys_sendmsg+0xee/0x170 [ 628.861248][ T254] __sys_sendmsg+0xcd/0x170 [ 628.861248][ T254] do_syscall_64+0xc6/0x1e0 [ 628.861248][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 628.861248][ T254] [ 628.863530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.863530][ T254] netdev_get_by_index+0x5e/0x80 [ 628.863530][ T254] fib6_nh_init+0x3d8/0x1580 [ 628.863530][ T254] ip6_route_info_create+0xf18/0x17d0 [ 628.863530][ T254] addrconf_f6i_alloc+0x315/0x560 [ 628.863530][ T254] ipv6_add_addr+0x411/0x2000 [ 628.863530][ T254] inet6_addr_add+0x30e/0xa40 [ 628.863530][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 628.863530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 628.863530][ T254] netlink_rcv_skb+0x130/0x360 [ 628.863530][ T254] netlink_unicast+0x449/0x710 [ 628.863530][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.863530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.863530][ T254] ___sys_sendmsg+0xee/0x170 [ 628.863530][ T254] __sys_sendmsg+0xcd/0x170 [ 628.863530][ T254] do_syscall_64+0xc6/0x1e0 [ 628.863530][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 628.863530][ T254] [ 628.865822][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.865822][ T254] netdev_get_by_index+0x5e/0x80 [ 628.865822][ T254] fib6_nh_init+0x3d8/0x1580 [ 628.865822][ T254] ip6_route_info_create+0xf18/0x17d0 [ 628.865822][ T254] ip6_route_add+0x1c/0x140 [ 628.865822][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 628.865822][ T254] addrconf_add_dev+0xe2/0x170 [ 628.865822][ T254] inet6_addr_add+0x12f/0xa40 [ 628.865822][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 628.865822][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 628.865822][ T254] netlink_rcv_skb+0x130/0x360 [ 628.865822][ T254] netlink_unicast+0x449/0x710 [ 628.865822][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.865822][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.865822][ T254] ___sys_sendmsg+0xee/0x170 [ 628.865822][ T254] __sys_sendmsg+0xcd/0x170 [ 628.865822][ T254] do_syscall_64+0xc6/0x1e0 [ 628.865822][ T254] [ 628.868124][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.868124][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 628.868124][ T254] ipv6_find_idev+0x102/0x170 [ 628.868124][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 628.868124][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 628.868124][ T254] netlink_rcv_skb+0x130/0x360 [ 628.868124][ T254] netlink_unicast+0x449/0x710 [ 628.868124][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.868124][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.868124][ T254] ___sys_sendmsg+0xee/0x170 [ 628.868124][ T254] __sys_sendmsg+0xcd/0x170 [ 628.868124][ T254] do_syscall_64+0xc6/0x1e0 [ 628.868124][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 628.868124][ T254] [ 628.870047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 628.870047][ T254] neigh_parms_alloc+0x1e5/0x510 [ 628.870047][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 628.870047][ T254] ipv6_find_idev+0x102/0x170 [ 628.870047][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 628.870047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 628.870047][ T254] netlink_rcv_skb+0x130/0x360 [ 628.870047][ T254] netlink_unicast+0x449/0x710 [ 628.870047][ T254] netlink_sendmsg+0x723/0xbe0 [ 628.870047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 628.870047][ T254] ___sys_sendmsg+0xee/0x170 [ 628.870047][ T254] __sys_sendmsg+0xcd/0x170 [ 628.870047][ T254] do_syscall_64+0xc6/0x1e0 [ 628.870047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 628.870047][ T254] [ 639.111895][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 639.112482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.112482][ T254] dst_init+0x84/0x4a0 [ 639.112482][ T254] dst_alloc+0x97/0x150 [ 639.112482][ T254] ip6_dst_alloc+0x23/0x90 [ 639.112482][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 639.112482][ T254] ip6_pol_route+0x56f/0x840 [ 639.112482][ T254] fib6_rule_lookup+0x334/0x630 [ 639.112482][ T254] ip6_route_output_flags+0x259/0x480 [ 639.112482][ T254] inet6_rtm_getroute+0x980/0xf70 [ 639.112482][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 639.112482][ T254] netlink_rcv_skb+0x130/0x360 [ 639.112482][ T254] netlink_unicast+0x449/0x710 [ 639.112482][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.112482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.112482][ T254] ___sys_sendmsg+0xee/0x170 [ 639.112482][ T254] __sys_sendmsg+0xcd/0x170 [ 639.112482][ T254] do_syscall_64+0xc6/0x1e0 [ 639.112482][ T254] [ 639.114986][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.114986][ T254] netdev_get_by_index+0x5e/0x80 [ 639.114986][ T254] fib6_nh_init+0x3d8/0x1580 [ 639.114986][ T254] ip6_route_info_create+0xf18/0x17d0 [ 639.114986][ T254] addrconf_f6i_alloc+0x265/0x560 [ 639.114986][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 639.114986][ T254] addrconf_join_anycast+0x1c0/0x220 [ 639.114986][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 639.114986][ T254] addrconf_dad_completed+0x12b/0xe20 [ 639.114986][ T254] addrconf_dad_begin+0x310/0x670 [ 639.114986][ T254] addrconf_dad_work+0x10b/0xab0 [ 639.114986][ T254] process_one_work+0x84d/0x18a0 [ 639.114986][ T254] worker_thread+0x587/0xd30 [ 639.114986][ T254] kthread+0x28a/0x350 [ 639.114986][ T254] ret_from_fork+0x31/0x70 [ 639.114986][ T254] ret_from_fork_asm+0x1a/0x30 [ 639.114986][ T254] [ 639.117489][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.117489][ T254] netdev_get_by_index+0x5e/0x80 [ 639.117489][ T254] fib6_nh_init+0x3d8/0x1580 [ 639.117489][ T254] ip6_route_info_create+0xf18/0x17d0 [ 639.117489][ T254] ip6_route_add+0x1c/0x140 [ 639.117489][ T254] addrconf_prefix_route+0x2a6/0x430 [ 639.117489][ T254] inet6_addr_add+0x4f8/0xa40 [ 639.117489][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 639.117489][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.117489][ T254] netlink_rcv_skb+0x130/0x360 [ 639.117489][ T254] netlink_unicast+0x449/0x710 [ 639.117489][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.117489][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.117489][ T254] ___sys_sendmsg+0xee/0x170 [ 639.117489][ T254] __sys_sendmsg+0xcd/0x170 [ 639.117489][ T254] do_syscall_64+0xc6/0x1e0 [ 639.117489][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.117489][ T254] [ 639.120032][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.120032][ T254] netdev_get_by_index+0x5e/0x80 [ 639.120032][ T254] fib6_nh_init+0x3d8/0x1580 [ 639.120032][ T254] ip6_route_info_create+0xf18/0x17d0 [ 639.120032][ T254] addrconf_f6i_alloc+0x315/0x560 [ 639.120032][ T254] ipv6_add_addr+0x411/0x2000 [ 639.120032][ T254] inet6_addr_add+0x30e/0xa40 [ 639.120032][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 639.120032][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.120032][ T254] netlink_rcv_skb+0x130/0x360 [ 639.120032][ T254] netlink_unicast+0x449/0x710 [ 639.120032][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.120032][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.120032][ T254] ___sys_sendmsg+0xee/0x170 [ 639.120032][ T254] __sys_sendmsg+0xcd/0x170 [ 639.120032][ T254] do_syscall_64+0xc6/0x1e0 [ 639.120032][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.120032][ T254] [ 639.122586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.122586][ T254] netdev_get_by_index+0x5e/0x80 [ 639.122586][ T254] fib6_nh_init+0x3d8/0x1580 [ 639.122586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 639.122586][ T254] ip6_route_add+0x1c/0x140 [ 639.122586][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 639.122586][ T254] addrconf_add_dev+0xe2/0x170 [ 639.122586][ T254] inet6_addr_add+0x12f/0xa40 [ 639.122586][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 639.122586][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.122586][ T254] netlink_rcv_skb+0x130/0x360 [ 639.122586][ T254] netlink_unicast+0x449/0x710 [ 639.122586][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.122586][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.122586][ T254] ___sys_sendmsg+0xee/0x170 [ 639.122586][ T254] __sys_sendmsg+0xcd/0x170 [ 639.122586][ T254] do_syscall_64+0xc6/0x1e0 [ 639.122586][ T254] [ 639.125085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.125085][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 639.125085][ T254] ipv6_find_idev+0x102/0x170 [ 639.125085][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 639.125085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.125085][ T254] netlink_rcv_skb+0x130/0x360 [ 639.125085][ T254] netlink_unicast+0x449/0x710 [ 639.125085][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.125085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.125085][ T254] ___sys_sendmsg+0xee/0x170 [ 639.125085][ T254] __sys_sendmsg+0xcd/0x170 [ 639.125085][ T254] do_syscall_64+0xc6/0x1e0 [ 639.125085][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.125085][ T254] [ 639.127048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 639.127048][ T254] neigh_parms_alloc+0x1e5/0x510 [ 639.127048][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 639.127048][ T254] ipv6_find_idev+0x102/0x170 [ 639.127048][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 639.127048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 639.127048][ T254] netlink_rcv_skb+0x130/0x360 [ 639.127048][ T254] netlink_unicast+0x449/0x710 [ 639.127048][ T254] netlink_sendmsg+0x723/0xbe0 [ 639.127048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 639.127048][ T254] ___sys_sendmsg+0xee/0x170 [ 639.127048][ T254] __sys_sendmsg+0xcd/0x170 [ 639.127048][ T254] do_syscall_64+0xc6/0x1e0 [ 639.127048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 639.127048][ T254] [ 649.367874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 649.368328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.368328][ T254] dst_init+0x84/0x4a0 [ 649.368328][ T254] dst_alloc+0x97/0x150 [ 649.368328][ T254] ip6_dst_alloc+0x23/0x90 [ 649.368328][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 649.368328][ T254] ip6_pol_route+0x56f/0x840 [ 649.368328][ T254] fib6_rule_lookup+0x334/0x630 [ 649.368328][ T254] ip6_route_output_flags+0x259/0x480 [ 649.368328][ T254] inet6_rtm_getroute+0x980/0xf70 [ 649.368328][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 649.368328][ T254] netlink_rcv_skb+0x130/0x360 [ 649.368328][ T254] netlink_unicast+0x449/0x710 [ 649.368328][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.368328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.368328][ T254] ___sys_sendmsg+0xee/0x170 [ 649.368328][ T254] __sys_sendmsg+0xcd/0x170 [ 649.368328][ T254] do_syscall_64+0xc6/0x1e0 [ 649.368328][ T254] [ 649.370779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.370779][ T254] netdev_get_by_index+0x5e/0x80 [ 649.370779][ T254] fib6_nh_init+0x3d8/0x1580 [ 649.370779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 649.370779][ T254] addrconf_f6i_alloc+0x265/0x560 [ 649.370779][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 649.370779][ T254] addrconf_join_anycast+0x1c0/0x220 [ 649.370779][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 649.370779][ T254] addrconf_dad_completed+0x12b/0xe20 [ 649.370779][ T254] addrconf_dad_begin+0x310/0x670 [ 649.370779][ T254] addrconf_dad_work+0x10b/0xab0 [ 649.370779][ T254] process_one_work+0x84d/0x18a0 [ 649.370779][ T254] worker_thread+0x587/0xd30 [ 649.370779][ T254] kthread+0x28a/0x350 [ 649.370779][ T254] ret_from_fork+0x31/0x70 [ 649.370779][ T254] ret_from_fork_asm+0x1a/0x30 [ 649.370779][ T254] [ 649.373204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.373204][ T254] netdev_get_by_index+0x5e/0x80 [ 649.373204][ T254] fib6_nh_init+0x3d8/0x1580 [ 649.373204][ T254] ip6_route_info_create+0xf18/0x17d0 [ 649.373204][ T254] ip6_route_add+0x1c/0x140 [ 649.373204][ T254] addrconf_prefix_route+0x2a6/0x430 [ 649.373204][ T254] inet6_addr_add+0x4f8/0xa40 [ 649.373204][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 649.373204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 649.373204][ T254] netlink_rcv_skb+0x130/0x360 [ 649.373204][ T254] netlink_unicast+0x449/0x710 [ 649.373204][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.373204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.373204][ T254] ___sys_sendmsg+0xee/0x170 [ 649.373204][ T254] __sys_sendmsg+0xcd/0x170 [ 649.373204][ T254] do_syscall_64+0xc6/0x1e0 [ 649.373204][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 649.373204][ T254] [ 649.375746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.375746][ T254] netdev_get_by_index+0x5e/0x80 [ 649.375746][ T254] fib6_nh_init+0x3d8/0x1580 [ 649.375746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 649.375746][ T254] addrconf_f6i_alloc+0x315/0x560 [ 649.375746][ T254] ipv6_add_addr+0x411/0x2000 [ 649.375746][ T254] inet6_addr_add+0x30e/0xa40 [ 649.375746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 649.375746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 649.375746][ T254] netlink_rcv_skb+0x130/0x360 [ 649.375746][ T254] netlink_unicast+0x449/0x710 [ 649.375746][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.375746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.375746][ T254] ___sys_sendmsg+0xee/0x170 [ 649.375746][ T254] __sys_sendmsg+0xcd/0x170 [ 649.375746][ T254] do_syscall_64+0xc6/0x1e0 [ 649.375746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 649.375746][ T254] [ 649.378245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.378245][ T254] netdev_get_by_index+0x5e/0x80 [ 649.378245][ T254] fib6_nh_init+0x3d8/0x1580 [ 649.378245][ T254] ip6_route_info_create+0xf18/0x17d0 [ 649.378245][ T254] ip6_route_add+0x1c/0x140 [ 649.378245][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 649.378245][ T254] addrconf_add_dev+0xe2/0x170 [ 649.378245][ T254] inet6_addr_add+0x12f/0xa40 [ 649.378245][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 649.378245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 649.378245][ T254] netlink_rcv_skb+0x130/0x360 [ 649.378245][ T254] netlink_unicast+0x449/0x710 [ 649.378245][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.378245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.378245][ T254] ___sys_sendmsg+0xee/0x170 [ 649.378245][ T254] __sys_sendmsg+0xcd/0x170 [ 649.378245][ T254] do_syscall_64+0xc6/0x1e0 [ 649.378245][ T254] [ 649.380720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.380720][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 649.380720][ T254] ipv6_find_idev+0x102/0x170 [ 649.380720][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 649.380720][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 649.380720][ T254] netlink_rcv_skb+0x130/0x360 [ 649.380720][ T254] netlink_unicast+0x449/0x710 [ 649.380720][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.380720][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.380720][ T254] ___sys_sendmsg+0xee/0x170 [ 649.380720][ T254] __sys_sendmsg+0xcd/0x170 [ 649.380720][ T254] do_syscall_64+0xc6/0x1e0 [ 649.380720][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 649.380720][ T254] [ 649.382649][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 649.382649][ T254] neigh_parms_alloc+0x1e5/0x510 [ 649.382649][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 649.382649][ T254] ipv6_find_idev+0x102/0x170 [ 649.382649][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 649.382649][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 649.382649][ T254] netlink_rcv_skb+0x130/0x360 [ 649.382649][ T254] netlink_unicast+0x449/0x710 [ 649.382649][ T254] netlink_sendmsg+0x723/0xbe0 [ 649.382649][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 649.382649][ T254] ___sys_sendmsg+0xee/0x170 [ 649.382649][ T254] __sys_sendmsg+0xcd/0x170 [ 649.382649][ T254] do_syscall_64+0xc6/0x1e0 [ 649.382649][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 649.382649][ T254] [ 659.495853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 659.496377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.496377][ T254] dst_init+0x84/0x4a0 [ 659.496377][ T254] dst_alloc+0x97/0x150 [ 659.496377][ T254] ip6_dst_alloc+0x23/0x90 [ 659.496377][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 659.496377][ T254] ip6_pol_route+0x56f/0x840 [ 659.496377][ T254] fib6_rule_lookup+0x334/0x630 [ 659.496377][ T254] ip6_route_output_flags+0x259/0x480 [ 659.496377][ T254] inet6_rtm_getroute+0x980/0xf70 [ 659.496377][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 659.496377][ T254] netlink_rcv_skb+0x130/0x360 [ 659.496377][ T254] netlink_unicast+0x449/0x710 [ 659.496377][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.496377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.496377][ T254] ___sys_sendmsg+0xee/0x170 [ 659.496377][ T254] __sys_sendmsg+0xcd/0x170 [ 659.496377][ T254] do_syscall_64+0xc6/0x1e0 [ 659.496377][ T254] [ 659.498807][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.498807][ T254] netdev_get_by_index+0x5e/0x80 [ 659.498807][ T254] fib6_nh_init+0x3d8/0x1580 [ 659.498807][ T254] ip6_route_info_create+0xf18/0x17d0 [ 659.498807][ T254] addrconf_f6i_alloc+0x265/0x560 [ 659.498807][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 659.498807][ T254] addrconf_join_anycast+0x1c0/0x220 [ 659.498807][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 659.498807][ T254] addrconf_dad_completed+0x12b/0xe20 [ 659.498807][ T254] addrconf_dad_begin+0x310/0x670 [ 659.498807][ T254] addrconf_dad_work+0x10b/0xab0 [ 659.498807][ T254] process_one_work+0x84d/0x18a0 [ 659.498807][ T254] worker_thread+0x587/0xd30 [ 659.498807][ T254] kthread+0x28a/0x350 [ 659.498807][ T254] ret_from_fork+0x31/0x70 [ 659.498807][ T254] ret_from_fork_asm+0x1a/0x30 [ 659.498807][ T254] [ 659.501184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.501184][ T254] netdev_get_by_index+0x5e/0x80 [ 659.501184][ T254] fib6_nh_init+0x3d8/0x1580 [ 659.501184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 659.501184][ T254] ip6_route_add+0x1c/0x140 [ 659.501184][ T254] addrconf_prefix_route+0x2a6/0x430 [ 659.501184][ T254] inet6_addr_add+0x4f8/0xa40 [ 659.501184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 659.501184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 659.501184][ T254] netlink_rcv_skb+0x130/0x360 [ 659.501184][ T254] netlink_unicast+0x449/0x710 [ 659.501184][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.501184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.501184][ T254] ___sys_sendmsg+0xee/0x170 [ 659.501184][ T254] __sys_sendmsg+0xcd/0x170 [ 659.501184][ T254] do_syscall_64+0xc6/0x1e0 [ 659.501184][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 659.501184][ T254] [ 659.503671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.503671][ T254] netdev_get_by_index+0x5e/0x80 [ 659.503671][ T254] fib6_nh_init+0x3d8/0x1580 [ 659.503671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 659.503671][ T254] addrconf_f6i_alloc+0x315/0x560 [ 659.503671][ T254] ipv6_add_addr+0x411/0x2000 [ 659.503671][ T254] inet6_addr_add+0x30e/0xa40 [ 659.503671][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 659.503671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 659.503671][ T254] netlink_rcv_skb+0x130/0x360 [ 659.503671][ T254] netlink_unicast+0x449/0x710 [ 659.503671][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.503671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.503671][ T254] ___sys_sendmsg+0xee/0x170 [ 659.503671][ T254] __sys_sendmsg+0xcd/0x170 [ 659.503671][ T254] do_syscall_64+0xc6/0x1e0 [ 659.503671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 659.503671][ T254] [ 659.506148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.506148][ T254] netdev_get_by_index+0x5e/0x80 [ 659.506148][ T254] fib6_nh_init+0x3d8/0x1580 [ 659.506148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 659.506148][ T254] ip6_route_add+0x1c/0x140 [ 659.506148][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 659.506148][ T254] addrconf_add_dev+0xe2/0x170 [ 659.506148][ T254] inet6_addr_add+0x12f/0xa40 [ 659.506148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 659.506148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 659.506148][ T254] netlink_rcv_skb+0x130/0x360 [ 659.506148][ T254] netlink_unicast+0x449/0x710 [ 659.506148][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.506148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.506148][ T254] ___sys_sendmsg+0xee/0x170 [ 659.506148][ T254] __sys_sendmsg+0xcd/0x170 [ 659.506148][ T254] do_syscall_64+0xc6/0x1e0 [ 659.506148][ T254] [ 659.508617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.508617][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 659.508617][ T254] ipv6_find_idev+0x102/0x170 [ 659.508617][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 659.508617][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 659.508617][ T254] netlink_rcv_skb+0x130/0x360 [ 659.508617][ T254] netlink_unicast+0x449/0x710 [ 659.508617][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.508617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.508617][ T254] ___sys_sendmsg+0xee/0x170 [ 659.508617][ T254] __sys_sendmsg+0xcd/0x170 [ 659.508617][ T254] do_syscall_64+0xc6/0x1e0 [ 659.508617][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 659.508617][ T254] [ 659.510560][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 659.510560][ T254] neigh_parms_alloc+0x1e5/0x510 [ 659.510560][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 659.510560][ T254] ipv6_find_idev+0x102/0x170 [ 659.510560][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 659.510560][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 659.510560][ T254] netlink_rcv_skb+0x130/0x360 [ 659.510560][ T254] netlink_unicast+0x449/0x710 [ 659.510560][ T254] netlink_sendmsg+0x723/0xbe0 [ 659.510560][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 659.510560][ T254] ___sys_sendmsg+0xee/0x170 [ 659.510560][ T254] __sys_sendmsg+0xcd/0x170 [ 659.510560][ T254] do_syscall_64+0xc6/0x1e0 [ 659.510560][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 659.510560][ T254] [ 669.751874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 669.752338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.752338][ T254] dst_init+0x84/0x4a0 [ 669.752338][ T254] dst_alloc+0x97/0x150 [ 669.752338][ T254] ip6_dst_alloc+0x23/0x90 [ 669.752338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 669.752338][ T254] ip6_pol_route+0x56f/0x840 [ 669.752338][ T254] fib6_rule_lookup+0x334/0x630 [ 669.752338][ T254] ip6_route_output_flags+0x259/0x480 [ 669.752338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 669.752338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 669.752338][ T254] netlink_rcv_skb+0x130/0x360 [ 669.752338][ T254] netlink_unicast+0x449/0x710 [ 669.752338][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.752338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.752338][ T254] ___sys_sendmsg+0xee/0x170 [ 669.752338][ T254] __sys_sendmsg+0xcd/0x170 [ 669.752338][ T254] do_syscall_64+0xc6/0x1e0 [ 669.752338][ T254] [ 669.754820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.754820][ T254] netdev_get_by_index+0x5e/0x80 [ 669.754820][ T254] fib6_nh_init+0x3d8/0x1580 [ 669.754820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 669.754820][ T254] addrconf_f6i_alloc+0x265/0x560 [ 669.754820][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 669.754820][ T254] addrconf_join_anycast+0x1c0/0x220 [ 669.754820][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 669.754820][ T254] addrconf_dad_completed+0x12b/0xe20 [ 669.754820][ T254] addrconf_dad_begin+0x310/0x670 [ 669.754820][ T254] addrconf_dad_work+0x10b/0xab0 [ 669.754820][ T254] process_one_work+0x84d/0x18a0 [ 669.754820][ T254] worker_thread+0x587/0xd30 [ 669.754820][ T254] kthread+0x28a/0x350 [ 669.754820][ T254] ret_from_fork+0x31/0x70 [ 669.754820][ T254] ret_from_fork_asm+0x1a/0x30 [ 669.754820][ T254] [ 669.757238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.757238][ T254] netdev_get_by_index+0x5e/0x80 [ 669.757238][ T254] fib6_nh_init+0x3d8/0x1580 [ 669.757238][ T254] ip6_route_info_create+0xf18/0x17d0 [ 669.757238][ T254] ip6_route_add+0x1c/0x140 [ 669.757238][ T254] addrconf_prefix_route+0x2a6/0x430 [ 669.757238][ T254] inet6_addr_add+0x4f8/0xa40 [ 669.757238][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 669.757238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 669.757238][ T254] netlink_rcv_skb+0x130/0x360 [ 669.757238][ T254] netlink_unicast+0x449/0x710 [ 669.757238][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.757238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.757238][ T254] ___sys_sendmsg+0xee/0x170 [ 669.757238][ T254] __sys_sendmsg+0xcd/0x170 [ 669.757238][ T254] do_syscall_64+0xc6/0x1e0 [ 669.757238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 669.757238][ T254] [ 669.759716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.759716][ T254] netdev_get_by_index+0x5e/0x80 [ 669.759716][ T254] fib6_nh_init+0x3d8/0x1580 [ 669.759716][ T254] ip6_route_info_create+0xf18/0x17d0 [ 669.759716][ T254] addrconf_f6i_alloc+0x315/0x560 [ 669.759716][ T254] ipv6_add_addr+0x411/0x2000 [ 669.759716][ T254] inet6_addr_add+0x30e/0xa40 [ 669.759716][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 669.759716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 669.759716][ T254] netlink_rcv_skb+0x130/0x360 [ 669.759716][ T254] netlink_unicast+0x449/0x710 [ 669.759716][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.759716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.759716][ T254] ___sys_sendmsg+0xee/0x170 [ 669.759716][ T254] __sys_sendmsg+0xcd/0x170 [ 669.759716][ T254] do_syscall_64+0xc6/0x1e0 [ 669.759716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 669.759716][ T254] [ 669.762215][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.762215][ T254] netdev_get_by_index+0x5e/0x80 [ 669.762215][ T254] fib6_nh_init+0x3d8/0x1580 [ 669.762215][ T254] ip6_route_info_create+0xf18/0x17d0 [ 669.762215][ T254] ip6_route_add+0x1c/0x140 [ 669.762215][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 669.762215][ T254] addrconf_add_dev+0xe2/0x170 [ 669.762215][ T254] inet6_addr_add+0x12f/0xa40 [ 669.762215][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 669.762215][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 669.762215][ T254] netlink_rcv_skb+0x130/0x360 [ 669.762215][ T254] netlink_unicast+0x449/0x710 [ 669.762215][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.762215][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.762215][ T254] ___sys_sendmsg+0xee/0x170 [ 669.762215][ T254] __sys_sendmsg+0xcd/0x170 [ 669.762215][ T254] do_syscall_64+0xc6/0x1e0 [ 669.762215][ T254] [ 669.764688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.764688][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 669.764688][ T254] ipv6_find_idev+0x102/0x170 [ 669.764688][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 669.764688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 669.764688][ T254] netlink_rcv_skb+0x130/0x360 [ 669.764688][ T254] netlink_unicast+0x449/0x710 [ 669.764688][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.764688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.764688][ T254] ___sys_sendmsg+0xee/0x170 [ 669.764688][ T254] __sys_sendmsg+0xcd/0x170 [ 669.764688][ T254] do_syscall_64+0xc6/0x1e0 [ 669.764688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 669.764688][ T254] [ 669.766640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 669.766640][ T254] neigh_parms_alloc+0x1e5/0x510 [ 669.766640][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 669.766640][ T254] ipv6_find_idev+0x102/0x170 [ 669.766640][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 669.766640][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 669.766640][ T254] netlink_rcv_skb+0x130/0x360 [ 669.766640][ T254] netlink_unicast+0x449/0x710 [ 669.766640][ T254] netlink_sendmsg+0x723/0xbe0 [ 669.766640][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 669.766640][ T254] ___sys_sendmsg+0xee/0x170 [ 669.766640][ T254] __sys_sendmsg+0xcd/0x170 [ 669.766640][ T254] do_syscall_64+0xc6/0x1e0 [ 669.766640][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 669.766640][ T254] [ 679.783854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 679.784313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.784313][ T254] dst_init+0x84/0x4a0 [ 679.784313][ T254] dst_alloc+0x97/0x150 [ 679.784313][ T254] ip6_dst_alloc+0x23/0x90 [ 679.784313][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 679.784313][ T254] ip6_pol_route+0x56f/0x840 [ 679.784313][ T254] fib6_rule_lookup+0x334/0x630 [ 679.784313][ T254] ip6_route_output_flags+0x259/0x480 [ 679.784313][ T254] inet6_rtm_getroute+0x980/0xf70 [ 679.784313][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 679.784313][ T254] netlink_rcv_skb+0x130/0x360 [ 679.784313][ T254] netlink_unicast+0x449/0x710 [ 679.784313][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.784313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.784313][ T254] ___sys_sendmsg+0xee/0x170 [ 679.784313][ T254] __sys_sendmsg+0xcd/0x170 [ 679.784313][ T254] do_syscall_64+0xc6/0x1e0 [ 679.784313][ T254] [ 679.786738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.786738][ T254] netdev_get_by_index+0x5e/0x80 [ 679.786738][ T254] fib6_nh_init+0x3d8/0x1580 [ 679.786738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 679.786738][ T254] addrconf_f6i_alloc+0x265/0x560 [ 679.786738][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 679.786738][ T254] addrconf_join_anycast+0x1c0/0x220 [ 679.786738][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 679.786738][ T254] addrconf_dad_completed+0x12b/0xe20 [ 679.786738][ T254] addrconf_dad_begin+0x310/0x670 [ 679.786738][ T254] addrconf_dad_work+0x10b/0xab0 [ 679.786738][ T254] process_one_work+0x84d/0x18a0 [ 679.786738][ T254] worker_thread+0x587/0xd30 [ 679.786738][ T254] kthread+0x28a/0x350 [ 679.786738][ T254] ret_from_fork+0x31/0x70 [ 679.786738][ T254] ret_from_fork_asm+0x1a/0x30 [ 679.786738][ T254] [ 679.789141][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.789141][ T254] netdev_get_by_index+0x5e/0x80 [ 679.789141][ T254] fib6_nh_init+0x3d8/0x1580 [ 679.789141][ T254] ip6_route_info_create+0xf18/0x17d0 [ 679.789141][ T254] ip6_route_add+0x1c/0x140 [ 679.789141][ T254] addrconf_prefix_route+0x2a6/0x430 [ 679.789141][ T254] inet6_addr_add+0x4f8/0xa40 [ 679.789141][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 679.789141][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 679.789141][ T254] netlink_rcv_skb+0x130/0x360 [ 679.789141][ T254] netlink_unicast+0x449/0x710 [ 679.789141][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.789141][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.789141][ T254] ___sys_sendmsg+0xee/0x170 [ 679.789141][ T254] __sys_sendmsg+0xcd/0x170 [ 679.789141][ T254] do_syscall_64+0xc6/0x1e0 [ 679.789141][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 679.789141][ T254] [ 679.791681][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.791681][ T254] netdev_get_by_index+0x5e/0x80 [ 679.791681][ T254] fib6_nh_init+0x3d8/0x1580 [ 679.791681][ T254] ip6_route_info_create+0xf18/0x17d0 [ 679.791681][ T254] addrconf_f6i_alloc+0x315/0x560 [ 679.791681][ T254] ipv6_add_addr+0x411/0x2000 [ 679.791681][ T254] inet6_addr_add+0x30e/0xa40 [ 679.791681][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 679.791681][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 679.791681][ T254] netlink_rcv_skb+0x130/0x360 [ 679.791681][ T254] netlink_unicast+0x449/0x710 [ 679.791681][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.791681][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.791681][ T254] ___sys_sendmsg+0xee/0x170 [ 679.791681][ T254] __sys_sendmsg+0xcd/0x170 [ 679.791681][ T254] do_syscall_64+0xc6/0x1e0 [ 679.791681][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 679.791681][ T254] [ 679.794205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.794205][ T254] netdev_get_by_index+0x5e/0x80 [ 679.794205][ T254] fib6_nh_init+0x3d8/0x1580 [ 679.794205][ T254] ip6_route_info_create+0xf18/0x17d0 [ 679.794205][ T254] ip6_route_add+0x1c/0x140 [ 679.794205][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 679.794205][ T254] addrconf_add_dev+0xe2/0x170 [ 679.794205][ T254] inet6_addr_add+0x12f/0xa40 [ 679.794205][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 679.794205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 679.794205][ T254] netlink_rcv_skb+0x130/0x360 [ 679.794205][ T254] netlink_unicast+0x449/0x710 [ 679.794205][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.794205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.794205][ T254] ___sys_sendmsg+0xee/0x170 [ 679.794205][ T254] __sys_sendmsg+0xcd/0x170 [ 679.794205][ T254] do_syscall_64+0xc6/0x1e0 [ 679.794205][ T254] [ 679.796662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.796662][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 679.796662][ T254] ipv6_find_idev+0x102/0x170 [ 679.796662][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 679.796662][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 679.796662][ T254] netlink_rcv_skb+0x130/0x360 [ 679.796662][ T254] netlink_unicast+0x449/0x710 [ 679.796662][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.796662][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.796662][ T254] ___sys_sendmsg+0xee/0x170 [ 679.796662][ T254] __sys_sendmsg+0xcd/0x170 [ 679.796662][ T254] do_syscall_64+0xc6/0x1e0 [ 679.796662][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 679.796662][ T254] [ 679.798609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 679.798609][ T254] neigh_parms_alloc+0x1e5/0x510 [ 679.798609][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 679.798609][ T254] ipv6_find_idev+0x102/0x170 [ 679.798609][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 679.798609][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 679.798609][ T254] netlink_rcv_skb+0x130/0x360 [ 679.798609][ T254] netlink_unicast+0x449/0x710 [ 679.798609][ T254] netlink_sendmsg+0x723/0xbe0 [ 679.798609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 679.798609][ T254] ___sys_sendmsg+0xee/0x170 [ 679.798609][ T254] __sys_sendmsg+0xcd/0x170 [ 679.798609][ T254] do_syscall_64+0xc6/0x1e0 [ 679.798609][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 679.798609][ T254] [ 690.039857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 690.040394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.040394][ T254] dst_init+0x84/0x4a0 [ 690.040394][ T254] dst_alloc+0x97/0x150 [ 690.040394][ T254] ip6_dst_alloc+0x23/0x90 [ 690.040394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 690.040394][ T254] ip6_pol_route+0x56f/0x840 [ 690.040394][ T254] fib6_rule_lookup+0x334/0x630 [ 690.040394][ T254] ip6_route_output_flags+0x259/0x480 [ 690.040394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 690.040394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 690.040394][ T254] netlink_rcv_skb+0x130/0x360 [ 690.040394][ T254] netlink_unicast+0x449/0x710 [ 690.040394][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.040394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.040394][ T254] ___sys_sendmsg+0xee/0x170 [ 690.040394][ T254] __sys_sendmsg+0xcd/0x170 [ 690.040394][ T254] do_syscall_64+0xc6/0x1e0 [ 690.040394][ T254] [ 690.042827][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.042827][ T254] netdev_get_by_index+0x5e/0x80 [ 690.042827][ T254] fib6_nh_init+0x3d8/0x1580 [ 690.042827][ T254] ip6_route_info_create+0xf18/0x17d0 [ 690.042827][ T254] addrconf_f6i_alloc+0x265/0x560 [ 690.042827][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 690.042827][ T254] addrconf_join_anycast+0x1c0/0x220 [ 690.042827][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 690.042827][ T254] addrconf_dad_completed+0x12b/0xe20 [ 690.042827][ T254] addrconf_dad_begin+0x310/0x670 [ 690.042827][ T254] addrconf_dad_work+0x10b/0xab0 [ 690.042827][ T254] process_one_work+0x84d/0x18a0 [ 690.042827][ T254] worker_thread+0x587/0xd30 [ 690.042827][ T254] kthread+0x28a/0x350 [ 690.042827][ T254] ret_from_fork+0x31/0x70 [ 690.042827][ T254] ret_from_fork_asm+0x1a/0x30 [ 690.042827][ T254] [ 690.045183][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.045183][ T254] netdev_get_by_index+0x5e/0x80 [ 690.045183][ T254] fib6_nh_init+0x3d8/0x1580 [ 690.045183][ T254] ip6_route_info_create+0xf18/0x17d0 [ 690.045183][ T254] ip6_route_add+0x1c/0x140 [ 690.045183][ T254] addrconf_prefix_route+0x2a6/0x430 [ 690.045183][ T254] inet6_addr_add+0x4f8/0xa40 [ 690.045183][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 690.045183][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 690.045183][ T254] netlink_rcv_skb+0x130/0x360 [ 690.045183][ T254] netlink_unicast+0x449/0x710 [ 690.045183][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.045183][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.045183][ T254] ___sys_sendmsg+0xee/0x170 [ 690.045183][ T254] __sys_sendmsg+0xcd/0x170 [ 690.045183][ T254] do_syscall_64+0xc6/0x1e0 [ 690.045183][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 690.045183][ T254] [ 690.047663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.047663][ T254] netdev_get_by_index+0x5e/0x80 [ 690.047663][ T254] fib6_nh_init+0x3d8/0x1580 [ 690.047663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 690.047663][ T254] addrconf_f6i_alloc+0x315/0x560 [ 690.047663][ T254] ipv6_add_addr+0x411/0x2000 [ 690.047663][ T254] inet6_addr_add+0x30e/0xa40 [ 690.047663][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 690.047663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 690.047663][ T254] netlink_rcv_skb+0x130/0x360 [ 690.047663][ T254] netlink_unicast+0x449/0x710 [ 690.047663][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.047663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.047663][ T254] ___sys_sendmsg+0xee/0x170 [ 690.047663][ T254] __sys_sendmsg+0xcd/0x170 [ 690.047663][ T254] do_syscall_64+0xc6/0x1e0 [ 690.047663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 690.047663][ T254] [ 690.050137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.050137][ T254] netdev_get_by_index+0x5e/0x80 [ 690.050137][ T254] fib6_nh_init+0x3d8/0x1580 [ 690.050137][ T254] ip6_route_info_create+0xf18/0x17d0 [ 690.050137][ T254] ip6_route_add+0x1c/0x140 [ 690.050137][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 690.050137][ T254] addrconf_add_dev+0xe2/0x170 [ 690.050137][ T254] inet6_addr_add+0x12f/0xa40 [ 690.050137][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 690.050137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 690.050137][ T254] netlink_rcv_skb+0x130/0x360 [ 690.050137][ T254] netlink_unicast+0x449/0x710 [ 690.050137][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.050137][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.050137][ T254] ___sys_sendmsg+0xee/0x170 [ 690.050137][ T254] __sys_sendmsg+0xcd/0x170 [ 690.050137][ T254] do_syscall_64+0xc6/0x1e0 [ 690.050137][ T254] [ 690.052694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.052694][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 690.052694][ T254] ipv6_find_idev+0x102/0x170 [ 690.052694][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 690.052694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 690.052694][ T254] netlink_rcv_skb+0x130/0x360 [ 690.052694][ T254] netlink_unicast+0x449/0x710 [ 690.052694][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.052694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.052694][ T254] ___sys_sendmsg+0xee/0x170 [ 690.052694][ T254] __sys_sendmsg+0xcd/0x170 [ 690.052694][ T254] do_syscall_64+0xc6/0x1e0 [ 690.052694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 690.052694][ T254] [ 690.054617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 690.054617][ T254] neigh_parms_alloc+0x1e5/0x510 [ 690.054617][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 690.054617][ T254] ipv6_find_idev+0x102/0x170 [ 690.054617][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 690.054617][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 690.054617][ T254] netlink_rcv_skb+0x130/0x360 [ 690.054617][ T254] netlink_unicast+0x449/0x710 [ 690.054617][ T254] netlink_sendmsg+0x723/0xbe0 [ 690.054617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 690.054617][ T254] ___sys_sendmsg+0xee/0x170 [ 690.054617][ T254] __sys_sendmsg+0xcd/0x170 [ 690.054617][ T254] do_syscall_64+0xc6/0x1e0 [ 690.054617][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 690.054617][ T254] [ 700.295847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 700.296316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.296316][ T254] dst_init+0x84/0x4a0 [ 700.296316][ T254] dst_alloc+0x97/0x150 [ 700.296316][ T254] ip6_dst_alloc+0x23/0x90 [ 700.296316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 700.296316][ T254] ip6_pol_route+0x56f/0x840 [ 700.296316][ T254] fib6_rule_lookup+0x334/0x630 [ 700.296316][ T254] ip6_route_output_flags+0x259/0x480 [ 700.296316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 700.296316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 700.296316][ T254] netlink_rcv_skb+0x130/0x360 [ 700.296316][ T254] netlink_unicast+0x449/0x710 [ 700.296316][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.296316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.296316][ T254] ___sys_sendmsg+0xee/0x170 [ 700.296316][ T254] __sys_sendmsg+0xcd/0x170 [ 700.296316][ T254] do_syscall_64+0xc6/0x1e0 [ 700.296316][ T254] [ 700.298733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.298733][ T254] netdev_get_by_index+0x5e/0x80 [ 700.298733][ T254] fib6_nh_init+0x3d8/0x1580 [ 700.298733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 700.298733][ T254] addrconf_f6i_alloc+0x265/0x560 [ 700.298733][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 700.298733][ T254] addrconf_join_anycast+0x1c0/0x220 [ 700.298733][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 700.298733][ T254] addrconf_dad_completed+0x12b/0xe20 [ 700.298733][ T254] addrconf_dad_begin+0x310/0x670 [ 700.298733][ T254] addrconf_dad_work+0x10b/0xab0 [ 700.298733][ T254] process_one_work+0x84d/0x18a0 [ 700.298733][ T254] worker_thread+0x587/0xd30 [ 700.298733][ T254] kthread+0x28a/0x350 [ 700.298733][ T254] ret_from_fork+0x31/0x70 [ 700.298733][ T254] ret_from_fork_asm+0x1a/0x30 [ 700.298733][ T254] [ 700.301136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.301136][ T254] netdev_get_by_index+0x5e/0x80 [ 700.301136][ T254] fib6_nh_init+0x3d8/0x1580 [ 700.301136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 700.301136][ T254] ip6_route_add+0x1c/0x140 [ 700.301136][ T254] addrconf_prefix_route+0x2a6/0x430 [ 700.301136][ T254] inet6_addr_add+0x4f8/0xa40 [ 700.301136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 700.301136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 700.301136][ T254] netlink_rcv_skb+0x130/0x360 [ 700.301136][ T254] netlink_unicast+0x449/0x710 [ 700.301136][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.301136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.301136][ T254] ___sys_sendmsg+0xee/0x170 [ 700.301136][ T254] __sys_sendmsg+0xcd/0x170 [ 700.301136][ T254] do_syscall_64+0xc6/0x1e0 [ 700.301136][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 700.301136][ T254] [ 700.303704][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.303704][ T254] netdev_get_by_index+0x5e/0x80 [ 700.303704][ T254] fib6_nh_init+0x3d8/0x1580 [ 700.303704][ T254] ip6_route_info_create+0xf18/0x17d0 [ 700.303704][ T254] addrconf_f6i_alloc+0x315/0x560 [ 700.303704][ T254] ipv6_add_addr+0x411/0x2000 [ 700.303704][ T254] inet6_addr_add+0x30e/0xa40 [ 700.303704][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 700.303704][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 700.303704][ T254] netlink_rcv_skb+0x130/0x360 [ 700.303704][ T254] netlink_unicast+0x449/0x710 [ 700.303704][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.303704][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.303704][ T254] ___sys_sendmsg+0xee/0x170 [ 700.303704][ T254] __sys_sendmsg+0xcd/0x170 [ 700.303704][ T254] do_syscall_64+0xc6/0x1e0 [ 700.303704][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 700.303704][ T254] [ 700.306247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.306247][ T254] netdev_get_by_index+0x5e/0x80 [ 700.306247][ T254] fib6_nh_init+0x3d8/0x1580 [ 700.306247][ T254] ip6_route_info_create+0xf18/0x17d0 [ 700.306247][ T254] ip6_route_add+0x1c/0x140 [ 700.306247][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 700.306247][ T254] addrconf_add_dev+0xe2/0x170 [ 700.306247][ T254] inet6_addr_add+0x12f/0xa40 [ 700.306247][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 700.306247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 700.306247][ T254] netlink_rcv_skb+0x130/0x360 [ 700.306247][ T254] netlink_unicast+0x449/0x710 [ 700.306247][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.306247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.306247][ T254] ___sys_sendmsg+0xee/0x170 [ 700.306247][ T254] __sys_sendmsg+0xcd/0x170 [ 700.306247][ T254] do_syscall_64+0xc6/0x1e0 [ 700.306247][ T254] [ 700.308728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.308728][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 700.308728][ T254] ipv6_find_idev+0x102/0x170 [ 700.308728][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 700.308728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 700.308728][ T254] netlink_rcv_skb+0x130/0x360 [ 700.308728][ T254] netlink_unicast+0x449/0x710 [ 700.308728][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.308728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.308728][ T254] ___sys_sendmsg+0xee/0x170 [ 700.308728][ T254] __sys_sendmsg+0xcd/0x170 [ 700.308728][ T254] do_syscall_64+0xc6/0x1e0 [ 700.308728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 700.308728][ T254] [ 700.310685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 700.310685][ T254] neigh_parms_alloc+0x1e5/0x510 [ 700.310685][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 700.310685][ T254] ipv6_find_idev+0x102/0x170 [ 700.310685][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 700.310685][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 700.310685][ T254] netlink_rcv_skb+0x130/0x360 [ 700.310685][ T254] netlink_unicast+0x449/0x710 [ 700.310685][ T254] netlink_sendmsg+0x723/0xbe0 [ 700.310685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 700.310685][ T254] ___sys_sendmsg+0xee/0x170 [ 700.310685][ T254] __sys_sendmsg+0xcd/0x170 [ 700.310685][ T254] do_syscall_64+0xc6/0x1e0 [ 700.310685][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 700.310685][ T254] [ 710.431841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 710.432310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.432310][ T254] dst_init+0x84/0x4a0 [ 710.432310][ T254] dst_alloc+0x97/0x150 [ 710.432310][ T254] ip6_dst_alloc+0x23/0x90 [ 710.432310][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 710.432310][ T254] ip6_pol_route+0x56f/0x840 [ 710.432310][ T254] fib6_rule_lookup+0x334/0x630 [ 710.432310][ T254] ip6_route_output_flags+0x259/0x480 [ 710.432310][ T254] inet6_rtm_getroute+0x980/0xf70 [ 710.432310][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 710.432310][ T254] netlink_rcv_skb+0x130/0x360 [ 710.432310][ T254] netlink_unicast+0x449/0x710 [ 710.432310][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.432310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.432310][ T254] ___sys_sendmsg+0xee/0x170 [ 710.432310][ T254] __sys_sendmsg+0xcd/0x170 [ 710.432310][ T254] do_syscall_64+0xc6/0x1e0 [ 710.432310][ T254] [ 710.434789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.434789][ T254] netdev_get_by_index+0x5e/0x80 [ 710.434789][ T254] fib6_nh_init+0x3d8/0x1580 [ 710.434789][ T254] ip6_route_info_create+0xf18/0x17d0 [ 710.434789][ T254] addrconf_f6i_alloc+0x265/0x560 [ 710.434789][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 710.434789][ T254] addrconf_join_anycast+0x1c0/0x220 [ 710.434789][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 710.434789][ T254] addrconf_dad_completed+0x12b/0xe20 [ 710.434789][ T254] addrconf_dad_begin+0x310/0x670 [ 710.434789][ T254] addrconf_dad_work+0x10b/0xab0 [ 710.434789][ T254] process_one_work+0x84d/0x18a0 [ 710.434789][ T254] worker_thread+0x587/0xd30 [ 710.434789][ T254] kthread+0x28a/0x350 [ 710.434789][ T254] ret_from_fork+0x31/0x70 [ 710.434789][ T254] ret_from_fork_asm+0x1a/0x30 [ 710.434789][ T254] [ 710.437194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.437194][ T254] netdev_get_by_index+0x5e/0x80 [ 710.437194][ T254] fib6_nh_init+0x3d8/0x1580 [ 710.437194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 710.437194][ T254] ip6_route_add+0x1c/0x140 [ 710.437194][ T254] addrconf_prefix_route+0x2a6/0x430 [ 710.437194][ T254] inet6_addr_add+0x4f8/0xa40 [ 710.437194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 710.437194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 710.437194][ T254] netlink_rcv_skb+0x130/0x360 [ 710.437194][ T254] netlink_unicast+0x449/0x710 [ 710.437194][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.437194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.437194][ T254] ___sys_sendmsg+0xee/0x170 [ 710.437194][ T254] __sys_sendmsg+0xcd/0x170 [ 710.437194][ T254] do_syscall_64+0xc6/0x1e0 [ 710.437194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 710.437194][ T254] [ 710.440047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.440047][ T254] netdev_get_by_index+0x5e/0x80 [ 710.440047][ T254] fib6_nh_init+0x3d8/0x1580 [ 710.440047][ T254] ip6_route_info_create+0xf18/0x17d0 [ 710.440047][ T254] addrconf_f6i_alloc+0x315/0x560 [ 710.440047][ T254] ipv6_add_addr+0x411/0x2000 [ 710.440047][ T254] inet6_addr_add+0x30e/0xa40 [ 710.440047][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 710.440047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 710.440047][ T254] netlink_rcv_skb+0x130/0x360 [ 710.440047][ T254] netlink_unicast+0x449/0x710 [ 710.440047][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.440047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.440047][ T254] ___sys_sendmsg+0xee/0x170 [ 710.440047][ T254] __sys_sendmsg+0xcd/0x170 [ 710.440047][ T254] do_syscall_64+0xc6/0x1e0 [ 710.440047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 710.440047][ T254] [ 710.442527][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.442527][ T254] netdev_get_by_index+0x5e/0x80 [ 710.442527][ T254] fib6_nh_init+0x3d8/0x1580 [ 710.442527][ T254] ip6_route_info_create+0xf18/0x17d0 [ 710.442527][ T254] ip6_route_add+0x1c/0x140 [ 710.442527][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 710.442527][ T254] addrconf_add_dev+0xe2/0x170 [ 710.442527][ T254] inet6_addr_add+0x12f/0xa40 [ 710.442527][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 710.442527][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 710.442527][ T254] netlink_rcv_skb+0x130/0x360 [ 710.442527][ T254] netlink_unicast+0x449/0x710 [ 710.442527][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.442527][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.442527][ T254] ___sys_sendmsg+0xee/0x170 [ 710.442527][ T254] __sys_sendmsg+0xcd/0x170 [ 710.442527][ T254] do_syscall_64+0xc6/0x1e0 [ 710.442527][ T254] [ 710.445017][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.445017][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 710.445017][ T254] ipv6_find_idev+0x102/0x170 [ 710.445017][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 710.445017][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 710.445017][ T254] netlink_rcv_skb+0x130/0x360 [ 710.445017][ T254] netlink_unicast+0x449/0x710 [ 710.445017][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.445017][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.445017][ T254] ___sys_sendmsg+0xee/0x170 [ 710.445017][ T254] __sys_sendmsg+0xcd/0x170 [ 710.445017][ T254] do_syscall_64+0xc6/0x1e0 [ 710.445017][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 710.445017][ T254] [ 710.446927][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 710.446927][ T254] neigh_parms_alloc+0x1e5/0x510 [ 710.446927][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 710.446927][ T254] ipv6_find_idev+0x102/0x170 [ 710.446927][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 710.446927][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 710.446927][ T254] netlink_rcv_skb+0x130/0x360 [ 710.446927][ T254] netlink_unicast+0x449/0x710 [ 710.446927][ T254] netlink_sendmsg+0x723/0xbe0 [ 710.446927][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 710.446927][ T254] ___sys_sendmsg+0xee/0x170 [ 710.446927][ T254] __sys_sendmsg+0xcd/0x170 [ 710.446927][ T254] do_syscall_64+0xc6/0x1e0 [ 710.446927][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 710.446927][ T254] [ 720.839945][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 720.840459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.840459][ T254] dst_init+0x84/0x4a0 [ 720.840459][ T254] dst_alloc+0x97/0x150 [ 720.840459][ T254] ip6_dst_alloc+0x23/0x90 [ 720.840459][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 720.840459][ T254] ip6_pol_route+0x56f/0x840 [ 720.840459][ T254] fib6_rule_lookup+0x334/0x630 [ 720.840459][ T254] ip6_route_output_flags+0x259/0x480 [ 720.840459][ T254] inet6_rtm_getroute+0x980/0xf70 [ 720.840459][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 720.840459][ T254] netlink_rcv_skb+0x130/0x360 [ 720.840459][ T254] netlink_unicast+0x449/0x710 [ 720.840459][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.840459][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.840459][ T254] ___sys_sendmsg+0xee/0x170 [ 720.840459][ T254] __sys_sendmsg+0xcd/0x170 [ 720.840459][ T254] do_syscall_64+0xc6/0x1e0 [ 720.840459][ T254] [ 720.842887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.842887][ T254] netdev_get_by_index+0x5e/0x80 [ 720.842887][ T254] fib6_nh_init+0x3d8/0x1580 [ 720.842887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 720.842887][ T254] addrconf_f6i_alloc+0x265/0x560 [ 720.842887][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 720.842887][ T254] addrconf_join_anycast+0x1c0/0x220 [ 720.842887][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 720.842887][ T254] addrconf_dad_completed+0x12b/0xe20 [ 720.842887][ T254] addrconf_dad_begin+0x310/0x670 [ 720.842887][ T254] addrconf_dad_work+0x10b/0xab0 [ 720.842887][ T254] process_one_work+0x84d/0x18a0 [ 720.842887][ T254] worker_thread+0x587/0xd30 [ 720.842887][ T254] kthread+0x28a/0x350 [ 720.842887][ T254] ret_from_fork+0x31/0x70 [ 720.842887][ T254] ret_from_fork_asm+0x1a/0x30 [ 720.842887][ T254] [ 720.845257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.845257][ T254] netdev_get_by_index+0x5e/0x80 [ 720.845257][ T254] fib6_nh_init+0x3d8/0x1580 [ 720.845257][ T254] ip6_route_info_create+0xf18/0x17d0 [ 720.845257][ T254] ip6_route_add+0x1c/0x140 [ 720.845257][ T254] addrconf_prefix_route+0x2a6/0x430 [ 720.845257][ T254] inet6_addr_add+0x4f8/0xa40 [ 720.845257][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 720.845257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 720.845257][ T254] netlink_rcv_skb+0x130/0x360 [ 720.845257][ T254] netlink_unicast+0x449/0x710 [ 720.845257][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.845257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.845257][ T254] ___sys_sendmsg+0xee/0x170 [ 720.845257][ T254] __sys_sendmsg+0xcd/0x170 [ 720.845257][ T254] do_syscall_64+0xc6/0x1e0 [ 720.845257][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 720.845257][ T254] [ 720.847732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.847732][ T254] netdev_get_by_index+0x5e/0x80 [ 720.847732][ T254] fib6_nh_init+0x3d8/0x1580 [ 720.847732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 720.847732][ T254] addrconf_f6i_alloc+0x315/0x560 [ 720.847732][ T254] ipv6_add_addr+0x411/0x2000 [ 720.847732][ T254] inet6_addr_add+0x30e/0xa40 [ 720.847732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 720.847732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 720.847732][ T254] netlink_rcv_skb+0x130/0x360 [ 720.847732][ T254] netlink_unicast+0x449/0x710 [ 720.847732][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.847732][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.847732][ T254] ___sys_sendmsg+0xee/0x170 [ 720.847732][ T254] __sys_sendmsg+0xcd/0x170 [ 720.847732][ T254] do_syscall_64+0xc6/0x1e0 [ 720.847732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 720.847732][ T254] [ 720.850200][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.850200][ T254] netdev_get_by_index+0x5e/0x80 [ 720.850200][ T254] fib6_nh_init+0x3d8/0x1580 [ 720.850200][ T254] ip6_route_info_create+0xf18/0x17d0 [ 720.850200][ T254] ip6_route_add+0x1c/0x140 [ 720.850200][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 720.850200][ T254] addrconf_add_dev+0xe2/0x170 [ 720.850200][ T254] inet6_addr_add+0x12f/0xa40 [ 720.850200][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 720.850200][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 720.850200][ T254] netlink_rcv_skb+0x130/0x360 [ 720.850200][ T254] netlink_unicast+0x449/0x710 [ 720.850200][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.850200][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.850200][ T254] ___sys_sendmsg+0xee/0x170 [ 720.850200][ T254] __sys_sendmsg+0xcd/0x170 [ 720.850200][ T254] do_syscall_64+0xc6/0x1e0 [ 720.850200][ T254] [ 720.852630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.852630][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 720.852630][ T254] ipv6_find_idev+0x102/0x170 [ 720.852630][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 720.852630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 720.852630][ T254] netlink_rcv_skb+0x130/0x360 [ 720.852630][ T254] netlink_unicast+0x449/0x710 [ 720.852630][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.852630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.852630][ T254] ___sys_sendmsg+0xee/0x170 [ 720.852630][ T254] __sys_sendmsg+0xcd/0x170 [ 720.852630][ T254] do_syscall_64+0xc6/0x1e0 [ 720.852630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 720.852630][ T254] [ 720.854537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 720.854537][ T254] neigh_parms_alloc+0x1e5/0x510 [ 720.854537][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 720.854537][ T254] ipv6_find_idev+0x102/0x170 [ 720.854537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 720.854537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 720.854537][ T254] netlink_rcv_skb+0x130/0x360 [ 720.854537][ T254] netlink_unicast+0x449/0x710 [ 720.854537][ T254] netlink_sendmsg+0x723/0xbe0 [ 720.854537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 720.854537][ T254] ___sys_sendmsg+0xee/0x170 [ 720.854537][ T254] __sys_sendmsg+0xcd/0x170 [ 720.854537][ T254] do_syscall_64+0xc6/0x1e0 [ 720.854537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 720.854537][ T254] [ 730.935839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 730.936311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.936311][ T254] dst_init+0x84/0x4a0 [ 730.936311][ T254] dst_alloc+0x97/0x150 [ 730.936311][ T254] ip6_dst_alloc+0x23/0x90 [ 730.936311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 730.936311][ T254] ip6_pol_route+0x56f/0x840 [ 730.936311][ T254] fib6_rule_lookup+0x334/0x630 [ 730.936311][ T254] ip6_route_output_flags+0x259/0x480 [ 730.936311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 730.936311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 730.936311][ T254] netlink_rcv_skb+0x130/0x360 [ 730.936311][ T254] netlink_unicast+0x449/0x710 [ 730.936311][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.936311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.936311][ T254] ___sys_sendmsg+0xee/0x170 [ 730.936311][ T254] __sys_sendmsg+0xcd/0x170 [ 730.936311][ T254] do_syscall_64+0xc6/0x1e0 [ 730.936311][ T254] [ 730.938794][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.938794][ T254] netdev_get_by_index+0x5e/0x80 [ 730.938794][ T254] fib6_nh_init+0x3d8/0x1580 [ 730.938794][ T254] ip6_route_info_create+0xf18/0x17d0 [ 730.938794][ T254] addrconf_f6i_alloc+0x265/0x560 [ 730.938794][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 730.938794][ T254] addrconf_join_anycast+0x1c0/0x220 [ 730.938794][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 730.938794][ T254] addrconf_dad_completed+0x12b/0xe20 [ 730.938794][ T254] addrconf_dad_begin+0x310/0x670 [ 730.938794][ T254] addrconf_dad_work+0x10b/0xab0 [ 730.938794][ T254] process_one_work+0x84d/0x18a0 [ 730.938794][ T254] worker_thread+0x587/0xd30 [ 730.938794][ T254] kthread+0x28a/0x350 [ 730.938794][ T254] ret_from_fork+0x31/0x70 [ 730.938794][ T254] ret_from_fork_asm+0x1a/0x30 [ 730.938794][ T254] [ 730.941228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.941228][ T254] netdev_get_by_index+0x5e/0x80 [ 730.941228][ T254] fib6_nh_init+0x3d8/0x1580 [ 730.941228][ T254] ip6_route_info_create+0xf18/0x17d0 [ 730.941228][ T254] ip6_route_add+0x1c/0x140 [ 730.941228][ T254] addrconf_prefix_route+0x2a6/0x430 [ 730.941228][ T254] inet6_addr_add+0x4f8/0xa40 [ 730.941228][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 730.941228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 730.941228][ T254] netlink_rcv_skb+0x130/0x360 [ 730.941228][ T254] netlink_unicast+0x449/0x710 [ 730.941228][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.941228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.941228][ T254] ___sys_sendmsg+0xee/0x170 [ 730.941228][ T254] __sys_sendmsg+0xcd/0x170 [ 730.941228][ T254] do_syscall_64+0xc6/0x1e0 [ 730.941228][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 730.941228][ T254] [ 730.943775][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.943775][ T254] netdev_get_by_index+0x5e/0x80 [ 730.943775][ T254] fib6_nh_init+0x3d8/0x1580 [ 730.943775][ T254] ip6_route_info_create+0xf18/0x17d0 [ 730.943775][ T254] addrconf_f6i_alloc+0x315/0x560 [ 730.943775][ T254] ipv6_add_addr+0x411/0x2000 [ 730.943775][ T254] inet6_addr_add+0x30e/0xa40 [ 730.943775][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 730.943775][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 730.943775][ T254] netlink_rcv_skb+0x130/0x360 [ 730.943775][ T254] netlink_unicast+0x449/0x710 [ 730.943775][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.943775][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.943775][ T254] ___sys_sendmsg+0xee/0x170 [ 730.943775][ T254] __sys_sendmsg+0xcd/0x170 [ 730.943775][ T254] do_syscall_64+0xc6/0x1e0 [ 730.943775][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 730.943775][ T254] [ 730.946365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.946365][ T254] netdev_get_by_index+0x5e/0x80 [ 730.946365][ T254] fib6_nh_init+0x3d8/0x1580 [ 730.946365][ T254] ip6_route_info_create+0xf18/0x17d0 [ 730.946365][ T254] ip6_route_add+0x1c/0x140 [ 730.946365][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 730.946365][ T254] addrconf_add_dev+0xe2/0x170 [ 730.946365][ T254] inet6_addr_add+0x12f/0xa40 [ 730.946365][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 730.946365][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 730.946365][ T254] netlink_rcv_skb+0x130/0x360 [ 730.946365][ T254] netlink_unicast+0x449/0x710 [ 730.946365][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.946365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.946365][ T254] ___sys_sendmsg+0xee/0x170 [ 730.946365][ T254] __sys_sendmsg+0xcd/0x170 [ 730.946365][ T254] do_syscall_64+0xc6/0x1e0 [ 730.946365][ T254] [ 730.948922][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.948922][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 730.948922][ T254] ipv6_find_idev+0x102/0x170 [ 730.948922][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 730.948922][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 730.948922][ T254] netlink_rcv_skb+0x130/0x360 [ 730.948922][ T254] netlink_unicast+0x449/0x710 [ 730.948922][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.948922][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.948922][ T254] ___sys_sendmsg+0xee/0x170 [ 730.948922][ T254] __sys_sendmsg+0xcd/0x170 [ 730.948922][ T254] do_syscall_64+0xc6/0x1e0 [ 730.948922][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 730.948922][ T254] [ 730.950911][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 730.950911][ T254] neigh_parms_alloc+0x1e5/0x510 [ 730.950911][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 730.950911][ T254] ipv6_find_idev+0x102/0x170 [ 730.950911][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 730.950911][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 730.950911][ T254] netlink_rcv_skb+0x130/0x360 [ 730.950911][ T254] netlink_unicast+0x449/0x710 [ 730.950911][ T254] netlink_sendmsg+0x723/0xbe0 [ 730.950911][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 730.950911][ T254] ___sys_sendmsg+0xee/0x170 [ 730.950911][ T254] __sys_sendmsg+0xcd/0x170 [ 730.950911][ T254] do_syscall_64+0xc6/0x1e0 [ 730.950911][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 730.950911][ T254] [ 741.191850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 741.192406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.192406][ T254] dst_init+0x84/0x4a0 [ 741.192406][ T254] dst_alloc+0x97/0x150 [ 741.192406][ T254] ip6_dst_alloc+0x23/0x90 [ 741.192406][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 741.192406][ T254] ip6_pol_route+0x56f/0x840 [ 741.192406][ T254] fib6_rule_lookup+0x334/0x630 [ 741.192406][ T254] ip6_route_output_flags+0x259/0x480 [ 741.192406][ T254] inet6_rtm_getroute+0x980/0xf70 [ 741.192406][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 741.192406][ T254] netlink_rcv_skb+0x130/0x360 [ 741.192406][ T254] netlink_unicast+0x449/0x710 [ 741.192406][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.192406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.192406][ T254] ___sys_sendmsg+0xee/0x170 [ 741.192406][ T254] __sys_sendmsg+0xcd/0x170 [ 741.192406][ T254] do_syscall_64+0xc6/0x1e0 [ 741.192406][ T254] [ 741.194858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.194858][ T254] netdev_get_by_index+0x5e/0x80 [ 741.194858][ T254] fib6_nh_init+0x3d8/0x1580 [ 741.194858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 741.194858][ T254] addrconf_f6i_alloc+0x265/0x560 [ 741.194858][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 741.194858][ T254] addrconf_join_anycast+0x1c0/0x220 [ 741.194858][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 741.194858][ T254] addrconf_dad_completed+0x12b/0xe20 [ 741.194858][ T254] addrconf_dad_begin+0x310/0x670 [ 741.194858][ T254] addrconf_dad_work+0x10b/0xab0 [ 741.194858][ T254] process_one_work+0x84d/0x18a0 [ 741.194858][ T254] worker_thread+0x587/0xd30 [ 741.194858][ T254] kthread+0x28a/0x350 [ 741.194858][ T254] ret_from_fork+0x31/0x70 [ 741.194858][ T254] ret_from_fork_asm+0x1a/0x30 [ 741.194858][ T254] [ 741.197223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.197223][ T254] netdev_get_by_index+0x5e/0x80 [ 741.197223][ T254] fib6_nh_init+0x3d8/0x1580 [ 741.197223][ T254] ip6_route_info_create+0xf18/0x17d0 [ 741.197223][ T254] ip6_route_add+0x1c/0x140 [ 741.197223][ T254] addrconf_prefix_route+0x2a6/0x430 [ 741.197223][ T254] inet6_addr_add+0x4f8/0xa40 [ 741.197223][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 741.197223][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.197223][ T254] netlink_rcv_skb+0x130/0x360 [ 741.197223][ T254] netlink_unicast+0x449/0x710 [ 741.197223][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.197223][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.197223][ T254] ___sys_sendmsg+0xee/0x170 [ 741.197223][ T254] __sys_sendmsg+0xcd/0x170 [ 741.197223][ T254] do_syscall_64+0xc6/0x1e0 [ 741.197223][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.197223][ T254] [ 741.199707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.199707][ T254] netdev_get_by_index+0x5e/0x80 [ 741.199707][ T254] fib6_nh_init+0x3d8/0x1580 [ 741.199707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 741.199707][ T254] addrconf_f6i_alloc+0x315/0x560 [ 741.199707][ T254] ipv6_add_addr+0x411/0x2000 [ 741.199707][ T254] inet6_addr_add+0x30e/0xa40 [ 741.199707][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 741.199707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.199707][ T254] netlink_rcv_skb+0x130/0x360 [ 741.199707][ T254] netlink_unicast+0x449/0x710 [ 741.199707][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.199707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.199707][ T254] ___sys_sendmsg+0xee/0x170 [ 741.199707][ T254] __sys_sendmsg+0xcd/0x170 [ 741.199707][ T254] do_syscall_64+0xc6/0x1e0 [ 741.199707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.199707][ T254] [ 741.202172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.202172][ T254] netdev_get_by_index+0x5e/0x80 [ 741.202172][ T254] fib6_nh_init+0x3d8/0x1580 [ 741.202172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 741.202172][ T254] ip6_route_add+0x1c/0x140 [ 741.202172][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 741.202172][ T254] addrconf_add_dev+0xe2/0x170 [ 741.202172][ T254] inet6_addr_add+0x12f/0xa40 [ 741.202172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 741.202172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.202172][ T254] netlink_rcv_skb+0x130/0x360 [ 741.202172][ T254] netlink_unicast+0x449/0x710 [ 741.202172][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.202172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.202172][ T254] ___sys_sendmsg+0xee/0x170 [ 741.202172][ T254] __sys_sendmsg+0xcd/0x170 [ 741.202172][ T254] do_syscall_64+0xc6/0x1e0 [ 741.202172][ T254] [ 741.204638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.204638][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 741.204638][ T254] ipv6_find_idev+0x102/0x170 [ 741.204638][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 741.204638][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.204638][ T254] netlink_rcv_skb+0x130/0x360 [ 741.204638][ T254] netlink_unicast+0x449/0x710 [ 741.204638][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.204638][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.204638][ T254] ___sys_sendmsg+0xee/0x170 [ 741.204638][ T254] __sys_sendmsg+0xcd/0x170 [ 741.204638][ T254] do_syscall_64+0xc6/0x1e0 [ 741.204638][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.204638][ T254] [ 741.206550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 741.206550][ T254] neigh_parms_alloc+0x1e5/0x510 [ 741.206550][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 741.206550][ T254] ipv6_find_idev+0x102/0x170 [ 741.206550][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 741.206550][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 741.206550][ T254] netlink_rcv_skb+0x130/0x360 [ 741.206550][ T254] netlink_unicast+0x449/0x710 [ 741.206550][ T254] netlink_sendmsg+0x723/0xbe0 [ 741.206550][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 741.206550][ T254] ___sys_sendmsg+0xee/0x170 [ 741.206550][ T254] __sys_sendmsg+0xcd/0x170 [ 741.206550][ T254] do_syscall_64+0xc6/0x1e0 [ 741.206550][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 741.206550][ T254] [ 751.455934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 751.456405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.456405][ T254] dst_init+0x84/0x4a0 [ 751.456405][ T254] dst_alloc+0x97/0x150 [ 751.456405][ T254] ip6_dst_alloc+0x23/0x90 [ 751.456405][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 751.456405][ T254] ip6_pol_route+0x56f/0x840 [ 751.456405][ T254] fib6_rule_lookup+0x334/0x630 [ 751.456405][ T254] ip6_route_output_flags+0x259/0x480 [ 751.456405][ T254] inet6_rtm_getroute+0x980/0xf70 [ 751.456405][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 751.456405][ T254] netlink_rcv_skb+0x130/0x360 [ 751.456405][ T254] netlink_unicast+0x449/0x710 [ 751.456405][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.456405][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.456405][ T254] ___sys_sendmsg+0xee/0x170 [ 751.456405][ T254] __sys_sendmsg+0xcd/0x170 [ 751.456405][ T254] do_syscall_64+0xc6/0x1e0 [ 751.456405][ T254] [ 751.458880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.458880][ T254] netdev_get_by_index+0x5e/0x80 [ 751.458880][ T254] fib6_nh_init+0x3d8/0x1580 [ 751.458880][ T254] ip6_route_info_create+0xf18/0x17d0 [ 751.458880][ T254] addrconf_f6i_alloc+0x265/0x560 [ 751.458880][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 751.458880][ T254] addrconf_join_anycast+0x1c0/0x220 [ 751.458880][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 751.458880][ T254] addrconf_dad_completed+0x12b/0xe20 [ 751.458880][ T254] addrconf_dad_begin+0x310/0x670 [ 751.458880][ T254] addrconf_dad_work+0x10b/0xab0 [ 751.458880][ T254] process_one_work+0x84d/0x18a0 [ 751.458880][ T254] worker_thread+0x587/0xd30 [ 751.458880][ T254] kthread+0x28a/0x350 [ 751.458880][ T254] ret_from_fork+0x31/0x70 [ 751.458880][ T254] ret_from_fork_asm+0x1a/0x30 [ 751.458880][ T254] [ 751.461301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.461301][ T254] netdev_get_by_index+0x5e/0x80 [ 751.461301][ T254] fib6_nh_init+0x3d8/0x1580 [ 751.461301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 751.461301][ T254] ip6_route_add+0x1c/0x140 [ 751.461301][ T254] addrconf_prefix_route+0x2a6/0x430 [ 751.461301][ T254] inet6_addr_add+0x4f8/0xa40 [ 751.461301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 751.461301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.461301][ T254] netlink_rcv_skb+0x130/0x360 [ 751.461301][ T254] netlink_unicast+0x449/0x710 [ 751.461301][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.461301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.461301][ T254] ___sys_sendmsg+0xee/0x170 [ 751.461301][ T254] __sys_sendmsg+0xcd/0x170 [ 751.461301][ T254] do_syscall_64+0xc6/0x1e0 [ 751.461301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.461301][ T254] [ 751.463876][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.463876][ T254] netdev_get_by_index+0x5e/0x80 [ 751.463876][ T254] fib6_nh_init+0x3d8/0x1580 [ 751.463876][ T254] ip6_route_info_create+0xf18/0x17d0 [ 751.463876][ T254] addrconf_f6i_alloc+0x315/0x560 [ 751.463876][ T254] ipv6_add_addr+0x411/0x2000 [ 751.463876][ T254] inet6_addr_add+0x30e/0xa40 [ 751.463876][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 751.463876][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.463876][ T254] netlink_rcv_skb+0x130/0x360 [ 751.463876][ T254] netlink_unicast+0x449/0x710 [ 751.463876][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.463876][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.463876][ T254] ___sys_sendmsg+0xee/0x170 [ 751.463876][ T254] __sys_sendmsg+0xcd/0x170 [ 751.463876][ T254] do_syscall_64+0xc6/0x1e0 [ 751.463876][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.463876][ T254] [ 751.466417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.466417][ T254] netdev_get_by_index+0x5e/0x80 [ 751.466417][ T254] fib6_nh_init+0x3d8/0x1580 [ 751.466417][ T254] ip6_route_info_create+0xf18/0x17d0 [ 751.466417][ T254] ip6_route_add+0x1c/0x140 [ 751.466417][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 751.466417][ T254] addrconf_add_dev+0xe2/0x170 [ 751.466417][ T254] inet6_addr_add+0x12f/0xa40 [ 751.466417][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 751.466417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.466417][ T254] netlink_rcv_skb+0x130/0x360 [ 751.466417][ T254] netlink_unicast+0x449/0x710 [ 751.466417][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.466417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.466417][ T254] ___sys_sendmsg+0xee/0x170 [ 751.466417][ T254] __sys_sendmsg+0xcd/0x170 [ 751.466417][ T254] do_syscall_64+0xc6/0x1e0 [ 751.466417][ T254] [ 751.468871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.468871][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 751.468871][ T254] ipv6_find_idev+0x102/0x170 [ 751.468871][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 751.468871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.468871][ T254] netlink_rcv_skb+0x130/0x360 [ 751.468871][ T254] netlink_unicast+0x449/0x710 [ 751.468871][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.468871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.468871][ T254] ___sys_sendmsg+0xee/0x170 [ 751.468871][ T254] __sys_sendmsg+0xcd/0x170 [ 751.468871][ T254] do_syscall_64+0xc6/0x1e0 [ 751.468871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.468871][ T254] [ 751.470791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 751.470791][ T254] neigh_parms_alloc+0x1e5/0x510 [ 751.470791][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 751.470791][ T254] ipv6_find_idev+0x102/0x170 [ 751.470791][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 751.470791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 751.470791][ T254] netlink_rcv_skb+0x130/0x360 [ 751.470791][ T254] netlink_unicast+0x449/0x710 [ 751.470791][ T254] netlink_sendmsg+0x723/0xbe0 [ 751.470791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 751.470791][ T254] ___sys_sendmsg+0xee/0x170 [ 751.470791][ T254] __sys_sendmsg+0xcd/0x170 [ 751.470791][ T254] do_syscall_64+0xc6/0x1e0 [ 751.470791][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 751.470791][ T254] [ 761.535872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 761.536384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.536384][ T254] dst_init+0x84/0x4a0 [ 761.536384][ T254] dst_alloc+0x97/0x150 [ 761.536384][ T254] ip6_dst_alloc+0x23/0x90 [ 761.536384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 761.536384][ T254] ip6_pol_route+0x56f/0x840 [ 761.536384][ T254] fib6_rule_lookup+0x334/0x630 [ 761.536384][ T254] ip6_route_output_flags+0x259/0x480 [ 761.536384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 761.536384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 761.536384][ T254] netlink_rcv_skb+0x130/0x360 [ 761.536384][ T254] netlink_unicast+0x449/0x710 [ 761.536384][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.536384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.536384][ T254] ___sys_sendmsg+0xee/0x170 [ 761.536384][ T254] __sys_sendmsg+0xcd/0x170 [ 761.536384][ T254] do_syscall_64+0xc6/0x1e0 [ 761.536384][ T254] [ 761.538810][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.538810][ T254] netdev_get_by_index+0x5e/0x80 [ 761.538810][ T254] fib6_nh_init+0x3d8/0x1580 [ 761.538810][ T254] ip6_route_info_create+0xf18/0x17d0 [ 761.538810][ T254] addrconf_f6i_alloc+0x265/0x560 [ 761.538810][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 761.538810][ T254] addrconf_join_anycast+0x1c0/0x220 [ 761.538810][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 761.538810][ T254] addrconf_dad_completed+0x12b/0xe20 [ 761.538810][ T254] addrconf_dad_begin+0x310/0x670 [ 761.538810][ T254] addrconf_dad_work+0x10b/0xab0 [ 761.538810][ T254] process_one_work+0x84d/0x18a0 [ 761.538810][ T254] worker_thread+0x587/0xd30 [ 761.538810][ T254] kthread+0x28a/0x350 [ 761.538810][ T254] ret_from_fork+0x31/0x70 [ 761.538810][ T254] ret_from_fork_asm+0x1a/0x30 [ 761.538810][ T254] [ 761.541205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.541205][ T254] netdev_get_by_index+0x5e/0x80 [ 761.541205][ T254] fib6_nh_init+0x3d8/0x1580 [ 761.541205][ T254] ip6_route_info_create+0xf18/0x17d0 [ 761.541205][ T254] ip6_route_add+0x1c/0x140 [ 761.541205][ T254] addrconf_prefix_route+0x2a6/0x430 [ 761.541205][ T254] inet6_addr_add+0x4f8/0xa40 [ 761.541205][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 761.541205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 761.541205][ T254] netlink_rcv_skb+0x130/0x360 [ 761.541205][ T254] netlink_unicast+0x449/0x710 [ 761.541205][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.541205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.541205][ T254] ___sys_sendmsg+0xee/0x170 [ 761.541205][ T254] __sys_sendmsg+0xcd/0x170 [ 761.541205][ T254] do_syscall_64+0xc6/0x1e0 [ 761.541205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 761.541205][ T254] [ 761.543741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.543741][ T254] netdev_get_by_index+0x5e/0x80 [ 761.543741][ T254] fib6_nh_init+0x3d8/0x1580 [ 761.543741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 761.543741][ T254] addrconf_f6i_alloc+0x315/0x560 [ 761.543741][ T254] ipv6_add_addr+0x411/0x2000 [ 761.543741][ T254] inet6_addr_add+0x30e/0xa40 [ 761.543741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 761.543741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 761.543741][ T254] netlink_rcv_skb+0x130/0x360 [ 761.543741][ T254] netlink_unicast+0x449/0x710 [ 761.543741][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.543741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.543741][ T254] ___sys_sendmsg+0xee/0x170 [ 761.543741][ T254] __sys_sendmsg+0xcd/0x170 [ 761.543741][ T254] do_syscall_64+0xc6/0x1e0 [ 761.543741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 761.543741][ T254] [ 761.546278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.546278][ T254] netdev_get_by_index+0x5e/0x80 [ 761.546278][ T254] fib6_nh_init+0x3d8/0x1580 [ 761.546278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 761.546278][ T254] ip6_route_add+0x1c/0x140 [ 761.546278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 761.546278][ T254] addrconf_add_dev+0xe2/0x170 [ 761.546278][ T254] inet6_addr_add+0x12f/0xa40 [ 761.546278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 761.546278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 761.546278][ T254] netlink_rcv_skb+0x130/0x360 [ 761.546278][ T254] netlink_unicast+0x449/0x710 [ 761.546278][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.546278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.546278][ T254] ___sys_sendmsg+0xee/0x170 [ 761.546278][ T254] __sys_sendmsg+0xcd/0x170 [ 761.546278][ T254] do_syscall_64+0xc6/0x1e0 [ 761.546278][ T254] [ 761.548717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.548717][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 761.548717][ T254] ipv6_find_idev+0x102/0x170 [ 761.548717][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 761.548717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 761.548717][ T254] netlink_rcv_skb+0x130/0x360 [ 761.548717][ T254] netlink_unicast+0x449/0x710 [ 761.548717][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.548717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.548717][ T254] ___sys_sendmsg+0xee/0x170 [ 761.548717][ T254] __sys_sendmsg+0xcd/0x170 [ 761.548717][ T254] do_syscall_64+0xc6/0x1e0 [ 761.548717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 761.548717][ T254] [ 761.550643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 761.550643][ T254] neigh_parms_alloc+0x1e5/0x510 [ 761.550643][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 761.550643][ T254] ipv6_find_idev+0x102/0x170 [ 761.550643][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 761.550643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 761.550643][ T254] netlink_rcv_skb+0x130/0x360 [ 761.550643][ T254] netlink_unicast+0x449/0x710 [ 761.550643][ T254] netlink_sendmsg+0x723/0xbe0 [ 761.550643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 761.550643][ T254] ___sys_sendmsg+0xee/0x170 [ 761.550643][ T254] __sys_sendmsg+0xcd/0x170 [ 761.550643][ T254] do_syscall_64+0xc6/0x1e0 [ 761.550643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 761.550643][ T254] [ 771.679896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 771.680420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.680420][ T254] dst_init+0x84/0x4a0 [ 771.680420][ T254] dst_alloc+0x97/0x150 [ 771.680420][ T254] ip6_dst_alloc+0x23/0x90 [ 771.680420][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 771.680420][ T254] ip6_pol_route+0x56f/0x840 [ 771.680420][ T254] fib6_rule_lookup+0x334/0x630 [ 771.680420][ T254] ip6_route_output_flags+0x259/0x480 [ 771.680420][ T254] inet6_rtm_getroute+0x980/0xf70 [ 771.680420][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 771.680420][ T254] netlink_rcv_skb+0x130/0x360 [ 771.680420][ T254] netlink_unicast+0x449/0x710 [ 771.680420][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.680420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.680420][ T254] ___sys_sendmsg+0xee/0x170 [ 771.680420][ T254] __sys_sendmsg+0xcd/0x170 [ 771.680420][ T254] do_syscall_64+0xc6/0x1e0 [ 771.680420][ T254] [ 771.682845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.682845][ T254] netdev_get_by_index+0x5e/0x80 [ 771.682845][ T254] fib6_nh_init+0x3d8/0x1580 [ 771.682845][ T254] ip6_route_info_create+0xf18/0x17d0 [ 771.682845][ T254] addrconf_f6i_alloc+0x265/0x560 [ 771.682845][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 771.682845][ T254] addrconf_join_anycast+0x1c0/0x220 [ 771.682845][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 771.682845][ T254] addrconf_dad_completed+0x12b/0xe20 [ 771.682845][ T254] addrconf_dad_begin+0x310/0x670 [ 771.682845][ T254] addrconf_dad_work+0x10b/0xab0 [ 771.682845][ T254] process_one_work+0x84d/0x18a0 [ 771.682845][ T254] worker_thread+0x587/0xd30 [ 771.682845][ T254] kthread+0x28a/0x350 [ 771.682845][ T254] ret_from_fork+0x31/0x70 [ 771.682845][ T254] ret_from_fork_asm+0x1a/0x30 [ 771.682845][ T254] [ 771.685227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.685227][ T254] netdev_get_by_index+0x5e/0x80 [ 771.685227][ T254] fib6_nh_init+0x3d8/0x1580 [ 771.685227][ T254] ip6_route_info_create+0xf18/0x17d0 [ 771.685227][ T254] ip6_route_add+0x1c/0x140 [ 771.685227][ T254] addrconf_prefix_route+0x2a6/0x430 [ 771.685227][ T254] inet6_addr_add+0x4f8/0xa40 [ 771.685227][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 771.685227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 771.685227][ T254] netlink_rcv_skb+0x130/0x360 [ 771.685227][ T254] netlink_unicast+0x449/0x710 [ 771.685227][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.685227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.685227][ T254] ___sys_sendmsg+0xee/0x170 [ 771.685227][ T254] __sys_sendmsg+0xcd/0x170 [ 771.685227][ T254] do_syscall_64+0xc6/0x1e0 [ 771.685227][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 771.685227][ T254] [ 771.687717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.687717][ T254] netdev_get_by_index+0x5e/0x80 [ 771.687717][ T254] fib6_nh_init+0x3d8/0x1580 [ 771.687717][ T254] ip6_route_info_create+0xf18/0x17d0 [ 771.687717][ T254] addrconf_f6i_alloc+0x315/0x560 [ 771.687717][ T254] ipv6_add_addr+0x411/0x2000 [ 771.687717][ T254] inet6_addr_add+0x30e/0xa40 [ 771.687717][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 771.687717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 771.687717][ T254] netlink_rcv_skb+0x130/0x360 [ 771.687717][ T254] netlink_unicast+0x449/0x710 [ 771.687717][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.687717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.687717][ T254] ___sys_sendmsg+0xee/0x170 [ 771.687717][ T254] __sys_sendmsg+0xcd/0x170 [ 771.687717][ T254] do_syscall_64+0xc6/0x1e0 [ 771.687717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 771.687717][ T254] [ 771.690197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.690197][ T254] netdev_get_by_index+0x5e/0x80 [ 771.690197][ T254] fib6_nh_init+0x3d8/0x1580 [ 771.690197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 771.690197][ T254] ip6_route_add+0x1c/0x140 [ 771.690197][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 771.690197][ T254] addrconf_add_dev+0xe2/0x170 [ 771.690197][ T254] inet6_addr_add+0x12f/0xa40 [ 771.690197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 771.690197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 771.690197][ T254] netlink_rcv_skb+0x130/0x360 [ 771.690197][ T254] netlink_unicast+0x449/0x710 [ 771.690197][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.690197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.690197][ T254] ___sys_sendmsg+0xee/0x170 [ 771.690197][ T254] __sys_sendmsg+0xcd/0x170 [ 771.690197][ T254] do_syscall_64+0xc6/0x1e0 [ 771.690197][ T254] [ 771.692652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.692652][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 771.692652][ T254] ipv6_find_idev+0x102/0x170 [ 771.692652][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 771.692652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 771.692652][ T254] netlink_rcv_skb+0x130/0x360 [ 771.692652][ T254] netlink_unicast+0x449/0x710 [ 771.692652][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.692652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.692652][ T254] ___sys_sendmsg+0xee/0x170 [ 771.692652][ T254] __sys_sendmsg+0xcd/0x170 [ 771.692652][ T254] do_syscall_64+0xc6/0x1e0 [ 771.692652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 771.692652][ T254] [ 771.694569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 771.694569][ T254] neigh_parms_alloc+0x1e5/0x510 [ 771.694569][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 771.694569][ T254] ipv6_find_idev+0x102/0x170 [ 771.694569][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 771.694569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 771.694569][ T254] netlink_rcv_skb+0x130/0x360 [ 771.694569][ T254] netlink_unicast+0x449/0x710 [ 771.694569][ T254] netlink_sendmsg+0x723/0xbe0 [ 771.694569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 771.694569][ T254] ___sys_sendmsg+0xee/0x170 [ 771.694569][ T254] __sys_sendmsg+0xcd/0x170 [ 771.694569][ T254] do_syscall_64+0xc6/0x1e0 [ 771.694569][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 771.694569][ T254] [ 781.935849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 781.936360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.936360][ T254] dst_init+0x84/0x4a0 [ 781.936360][ T254] dst_alloc+0x97/0x150 [ 781.936360][ T254] ip6_dst_alloc+0x23/0x90 [ 781.936360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 781.936360][ T254] ip6_pol_route+0x56f/0x840 [ 781.936360][ T254] fib6_rule_lookup+0x334/0x630 [ 781.936360][ T254] ip6_route_output_flags+0x259/0x480 [ 781.936360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 781.936360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 781.936360][ T254] netlink_rcv_skb+0x130/0x360 [ 781.936360][ T254] netlink_unicast+0x449/0x710 [ 781.936360][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.936360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.936360][ T254] ___sys_sendmsg+0xee/0x170 [ 781.936360][ T254] __sys_sendmsg+0xcd/0x170 [ 781.936360][ T254] do_syscall_64+0xc6/0x1e0 [ 781.936360][ T254] [ 781.938778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.938778][ T254] netdev_get_by_index+0x5e/0x80 [ 781.938778][ T254] fib6_nh_init+0x3d8/0x1580 [ 781.938778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 781.938778][ T254] addrconf_f6i_alloc+0x265/0x560 [ 781.938778][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 781.938778][ T254] addrconf_join_anycast+0x1c0/0x220 [ 781.938778][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 781.938778][ T254] addrconf_dad_completed+0x12b/0xe20 [ 781.938778][ T254] addrconf_dad_begin+0x310/0x670 [ 781.938778][ T254] addrconf_dad_work+0x10b/0xab0 [ 781.938778][ T254] process_one_work+0x84d/0x18a0 [ 781.938778][ T254] worker_thread+0x587/0xd30 [ 781.938778][ T254] kthread+0x28a/0x350 [ 781.938778][ T254] ret_from_fork+0x31/0x70 [ 781.938778][ T254] ret_from_fork_asm+0x1a/0x30 [ 781.938778][ T254] [ 781.941174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.941174][ T254] netdev_get_by_index+0x5e/0x80 [ 781.941174][ T254] fib6_nh_init+0x3d8/0x1580 [ 781.941174][ T254] ip6_route_info_create+0xf18/0x17d0 [ 781.941174][ T254] ip6_route_add+0x1c/0x140 [ 781.941174][ T254] addrconf_prefix_route+0x2a6/0x430 [ 781.941174][ T254] inet6_addr_add+0x4f8/0xa40 [ 781.941174][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 781.941174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 781.941174][ T254] netlink_rcv_skb+0x130/0x360 [ 781.941174][ T254] netlink_unicast+0x449/0x710 [ 781.941174][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.941174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.941174][ T254] ___sys_sendmsg+0xee/0x170 [ 781.941174][ T254] __sys_sendmsg+0xcd/0x170 [ 781.941174][ T254] do_syscall_64+0xc6/0x1e0 [ 781.941174][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 781.941174][ T254] [ 781.943654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.943654][ T254] netdev_get_by_index+0x5e/0x80 [ 781.943654][ T254] fib6_nh_init+0x3d8/0x1580 [ 781.943654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 781.943654][ T254] addrconf_f6i_alloc+0x315/0x560 [ 781.943654][ T254] ipv6_add_addr+0x411/0x2000 [ 781.943654][ T254] inet6_addr_add+0x30e/0xa40 [ 781.943654][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 781.943654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 781.943654][ T254] netlink_rcv_skb+0x130/0x360 [ 781.943654][ T254] netlink_unicast+0x449/0x710 [ 781.943654][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.943654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.943654][ T254] ___sys_sendmsg+0xee/0x170 [ 781.943654][ T254] __sys_sendmsg+0xcd/0x170 [ 781.943654][ T254] do_syscall_64+0xc6/0x1e0 [ 781.943654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 781.943654][ T254] [ 781.946128][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.946128][ T254] netdev_get_by_index+0x5e/0x80 [ 781.946128][ T254] fib6_nh_init+0x3d8/0x1580 [ 781.946128][ T254] ip6_route_info_create+0xf18/0x17d0 [ 781.946128][ T254] ip6_route_add+0x1c/0x140 [ 781.946128][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 781.946128][ T254] addrconf_add_dev+0xe2/0x170 [ 781.946128][ T254] inet6_addr_add+0x12f/0xa40 [ 781.946128][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 781.946128][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 781.946128][ T254] netlink_rcv_skb+0x130/0x360 [ 781.946128][ T254] netlink_unicast+0x449/0x710 [ 781.946128][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.946128][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.946128][ T254] ___sys_sendmsg+0xee/0x170 [ 781.946128][ T254] __sys_sendmsg+0xcd/0x170 [ 781.946128][ T254] do_syscall_64+0xc6/0x1e0 [ 781.946128][ T254] [ 781.948564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.948564][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 781.948564][ T254] ipv6_find_idev+0x102/0x170 [ 781.948564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 781.948564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 781.948564][ T254] netlink_rcv_skb+0x130/0x360 [ 781.948564][ T254] netlink_unicast+0x449/0x710 [ 781.948564][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.948564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.948564][ T254] ___sys_sendmsg+0xee/0x170 [ 781.948564][ T254] __sys_sendmsg+0xcd/0x170 [ 781.948564][ T254] do_syscall_64+0xc6/0x1e0 [ 781.948564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 781.948564][ T254] [ 781.950490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 781.950490][ T254] neigh_parms_alloc+0x1e5/0x510 [ 781.950490][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 781.950490][ T254] ipv6_find_idev+0x102/0x170 [ 781.950490][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 781.950490][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 781.950490][ T254] netlink_rcv_skb+0x130/0x360 [ 781.950490][ T254] netlink_unicast+0x449/0x710 [ 781.950490][ T254] netlink_sendmsg+0x723/0xbe0 [ 781.950490][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 781.950490][ T254] ___sys_sendmsg+0xee/0x170 [ 781.950490][ T254] __sys_sendmsg+0xcd/0x170 [ 781.950490][ T254] do_syscall_64+0xc6/0x1e0 [ 781.950490][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 781.950490][ T254] [ 792.191900][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 792.192537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.192537][ T254] dst_init+0x84/0x4a0 [ 792.192537][ T254] dst_alloc+0x97/0x150 [ 792.192537][ T254] ip6_dst_alloc+0x23/0x90 [ 792.192537][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 792.192537][ T254] ip6_pol_route+0x56f/0x840 [ 792.192537][ T254] fib6_rule_lookup+0x334/0x630 [ 792.192537][ T254] ip6_route_output_flags+0x259/0x480 [ 792.192537][ T254] inet6_rtm_getroute+0x980/0xf70 [ 792.192537][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 792.192537][ T254] netlink_rcv_skb+0x130/0x360 [ 792.192537][ T254] netlink_unicast+0x449/0x710 [ 792.192537][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.192537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.192537][ T254] ___sys_sendmsg+0xee/0x170 [ 792.192537][ T254] __sys_sendmsg+0xcd/0x170 [ 792.192537][ T254] do_syscall_64+0xc6/0x1e0 [ 792.192537][ T254] [ 792.195145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.195145][ T254] netdev_get_by_index+0x5e/0x80 [ 792.195145][ T254] fib6_nh_init+0x3d8/0x1580 [ 792.195145][ T254] ip6_route_info_create+0xf18/0x17d0 [ 792.195145][ T254] addrconf_f6i_alloc+0x265/0x560 [ 792.195145][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 792.195145][ T254] addrconf_join_anycast+0x1c0/0x220 [ 792.195145][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 792.195145][ T254] addrconf_dad_completed+0x12b/0xe20 [ 792.195145][ T254] addrconf_dad_begin+0x310/0x670 [ 792.195145][ T254] addrconf_dad_work+0x10b/0xab0 [ 792.195145][ T254] process_one_work+0x84d/0x18a0 [ 792.195145][ T254] worker_thread+0x587/0xd30 [ 792.195145][ T254] kthread+0x28a/0x350 [ 792.195145][ T254] ret_from_fork+0x31/0x70 [ 792.195145][ T254] ret_from_fork_asm+0x1a/0x30 [ 792.195145][ T254] [ 792.197619][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.197619][ T254] netdev_get_by_index+0x5e/0x80 [ 792.197619][ T254] fib6_nh_init+0x3d8/0x1580 [ 792.197619][ T254] ip6_route_info_create+0xf18/0x17d0 [ 792.197619][ T254] ip6_route_add+0x1c/0x140 [ 792.197619][ T254] addrconf_prefix_route+0x2a6/0x430 [ 792.197619][ T254] inet6_addr_add+0x4f8/0xa40 [ 792.197619][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 792.197619][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.197619][ T254] netlink_rcv_skb+0x130/0x360 [ 792.197619][ T254] netlink_unicast+0x449/0x710 [ 792.197619][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.197619][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.197619][ T254] ___sys_sendmsg+0xee/0x170 [ 792.197619][ T254] __sys_sendmsg+0xcd/0x170 [ 792.197619][ T254] do_syscall_64+0xc6/0x1e0 [ 792.197619][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.197619][ T254] [ 792.200180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.200180][ T254] netdev_get_by_index+0x5e/0x80 [ 792.200180][ T254] fib6_nh_init+0x3d8/0x1580 [ 792.200180][ T254] ip6_route_info_create+0xf18/0x17d0 [ 792.200180][ T254] addrconf_f6i_alloc+0x315/0x560 [ 792.200180][ T254] ipv6_add_addr+0x411/0x2000 [ 792.200180][ T254] inet6_addr_add+0x30e/0xa40 [ 792.200180][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 792.200180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.200180][ T254] netlink_rcv_skb+0x130/0x360 [ 792.200180][ T254] netlink_unicast+0x449/0x710 [ 792.200180][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.200180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.200180][ T254] ___sys_sendmsg+0xee/0x170 [ 792.200180][ T254] __sys_sendmsg+0xcd/0x170 [ 792.200180][ T254] do_syscall_64+0xc6/0x1e0 [ 792.200180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.200180][ T254] [ 792.202743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.202743][ T254] netdev_get_by_index+0x5e/0x80 [ 792.202743][ T254] fib6_nh_init+0x3d8/0x1580 [ 792.202743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 792.202743][ T254] ip6_route_add+0x1c/0x140 [ 792.202743][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 792.202743][ T254] addrconf_add_dev+0xe2/0x170 [ 792.202743][ T254] inet6_addr_add+0x12f/0xa40 [ 792.202743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 792.202743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.202743][ T254] netlink_rcv_skb+0x130/0x360 [ 792.202743][ T254] netlink_unicast+0x449/0x710 [ 792.202743][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.202743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.202743][ T254] ___sys_sendmsg+0xee/0x170 [ 792.202743][ T254] __sys_sendmsg+0xcd/0x170 [ 792.202743][ T254] do_syscall_64+0xc6/0x1e0 [ 792.202743][ T254] [ 792.205301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.205301][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 792.205301][ T254] ipv6_find_idev+0x102/0x170 [ 792.205301][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 792.205301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.205301][ T254] netlink_rcv_skb+0x130/0x360 [ 792.205301][ T254] netlink_unicast+0x449/0x710 [ 792.205301][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.205301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.205301][ T254] ___sys_sendmsg+0xee/0x170 [ 792.205301][ T254] __sys_sendmsg+0xcd/0x170 [ 792.205301][ T254] do_syscall_64+0xc6/0x1e0 [ 792.205301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.205301][ T254] [ 792.207320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 792.207320][ T254] neigh_parms_alloc+0x1e5/0x510 [ 792.207320][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 792.207320][ T254] ipv6_find_idev+0x102/0x170 [ 792.207320][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 792.207320][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 792.207320][ T254] netlink_rcv_skb+0x130/0x360 [ 792.207320][ T254] netlink_unicast+0x449/0x710 [ 792.207320][ T254] netlink_sendmsg+0x723/0xbe0 [ 792.207320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 792.207320][ T254] ___sys_sendmsg+0xee/0x170 [ 792.207320][ T254] __sys_sendmsg+0xcd/0x170 [ 792.207320][ T254] do_syscall_64+0xc6/0x1e0 [ 792.207320][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 792.207320][ T254] [ 802.399920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 802.400521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.400521][ T254] dst_init+0x84/0x4a0 [ 802.400521][ T254] dst_alloc+0x97/0x150 [ 802.400521][ T254] ip6_dst_alloc+0x23/0x90 [ 802.400521][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 802.400521][ T254] ip6_pol_route+0x56f/0x840 [ 802.400521][ T254] fib6_rule_lookup+0x334/0x630 [ 802.400521][ T254] ip6_route_output_flags+0x259/0x480 [ 802.400521][ T254] inet6_rtm_getroute+0x980/0xf70 [ 802.400521][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 802.400521][ T254] netlink_rcv_skb+0x130/0x360 [ 802.400521][ T254] netlink_unicast+0x449/0x710 [ 802.400521][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.400521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.400521][ T254] ___sys_sendmsg+0xee/0x170 [ 802.400521][ T254] __sys_sendmsg+0xcd/0x170 [ 802.400521][ T254] do_syscall_64+0xc6/0x1e0 [ 802.400521][ T254] [ 802.402760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.402760][ T254] netdev_get_by_index+0x5e/0x80 [ 802.402760][ T254] fib6_nh_init+0x3d8/0x1580 [ 802.402760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 802.402760][ T254] addrconf_f6i_alloc+0x265/0x560 [ 802.402760][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 802.402760][ T254] addrconf_join_anycast+0x1c0/0x220 [ 802.402760][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 802.402760][ T254] addrconf_dad_completed+0x12b/0xe20 [ 802.402760][ T254] addrconf_dad_begin+0x310/0x670 [ 802.402760][ T254] addrconf_dad_work+0x10b/0xab0 [ 802.402760][ T254] process_one_work+0x84d/0x18a0 [ 802.402760][ T254] worker_thread+0x587/0xd30 [ 802.402760][ T254] kthread+0x28a/0x350 [ 802.402760][ T254] ret_from_fork+0x31/0x70 [ 802.402760][ T254] ret_from_fork_asm+0x1a/0x30 [ 802.402760][ T254] [ 802.404989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.404989][ T254] netdev_get_by_index+0x5e/0x80 [ 802.404989][ T254] fib6_nh_init+0x3d8/0x1580 [ 802.404989][ T254] ip6_route_info_create+0xf18/0x17d0 [ 802.404989][ T254] ip6_route_add+0x1c/0x140 [ 802.404989][ T254] addrconf_prefix_route+0x2a6/0x430 [ 802.404989][ T254] inet6_addr_add+0x4f8/0xa40 [ 802.404989][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 802.404989][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.404989][ T254] netlink_rcv_skb+0x130/0x360 [ 802.404989][ T254] netlink_unicast+0x449/0x710 [ 802.404989][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.404989][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.404989][ T254] ___sys_sendmsg+0xee/0x170 [ 802.404989][ T254] __sys_sendmsg+0xcd/0x170 [ 802.404989][ T254] do_syscall_64+0xc6/0x1e0 [ 802.404989][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.404989][ T254] [ 802.407267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.407267][ T254] netdev_get_by_index+0x5e/0x80 [ 802.407267][ T254] fib6_nh_init+0x3d8/0x1580 [ 802.407267][ T254] ip6_route_info_create+0xf18/0x17d0 [ 802.407267][ T254] addrconf_f6i_alloc+0x315/0x560 [ 802.407267][ T254] ipv6_add_addr+0x411/0x2000 [ 802.407267][ T254] inet6_addr_add+0x30e/0xa40 [ 802.407267][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 802.407267][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.407267][ T254] netlink_rcv_skb+0x130/0x360 [ 802.407267][ T254] netlink_unicast+0x449/0x710 [ 802.407267][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.407267][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.407267][ T254] ___sys_sendmsg+0xee/0x170 [ 802.407267][ T254] __sys_sendmsg+0xcd/0x170 [ 802.407267][ T254] do_syscall_64+0xc6/0x1e0 [ 802.407267][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.407267][ T254] [ 802.409550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.409550][ T254] netdev_get_by_index+0x5e/0x80 [ 802.409550][ T254] fib6_nh_init+0x3d8/0x1580 [ 802.409550][ T254] ip6_route_info_create+0xf18/0x17d0 [ 802.409550][ T254] ip6_route_add+0x1c/0x140 [ 802.409550][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 802.409550][ T254] addrconf_add_dev+0xe2/0x170 [ 802.409550][ T254] inet6_addr_add+0x12f/0xa40 [ 802.409550][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 802.409550][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.409550][ T254] netlink_rcv_skb+0x130/0x360 [ 802.409550][ T254] netlink_unicast+0x449/0x710 [ 802.409550][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.409550][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.409550][ T254] ___sys_sendmsg+0xee/0x170 [ 802.409550][ T254] __sys_sendmsg+0xcd/0x170 [ 802.409550][ T254] do_syscall_64+0xc6/0x1e0 [ 802.409550][ T254] [ 802.411782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.411782][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 802.411782][ T254] ipv6_find_idev+0x102/0x170 [ 802.411782][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 802.411782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.411782][ T254] netlink_rcv_skb+0x130/0x360 [ 802.411782][ T254] netlink_unicast+0x449/0x710 [ 802.411782][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.411782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.411782][ T254] ___sys_sendmsg+0xee/0x170 [ 802.411782][ T254] __sys_sendmsg+0xcd/0x170 [ 802.411782][ T254] do_syscall_64+0xc6/0x1e0 [ 802.411782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.411782][ T254] [ 802.413536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 802.413536][ T254] neigh_parms_alloc+0x1e5/0x510 [ 802.413536][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 802.413536][ T254] ipv6_find_idev+0x102/0x170 [ 802.413536][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 802.413536][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 802.413536][ T254] netlink_rcv_skb+0x130/0x360 [ 802.413536][ T254] netlink_unicast+0x449/0x710 [ 802.413536][ T254] netlink_sendmsg+0x723/0xbe0 [ 802.413536][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 802.413536][ T254] ___sys_sendmsg+0xee/0x170 [ 802.413536][ T254] __sys_sendmsg+0xcd/0x170 [ 802.413536][ T254] do_syscall_64+0xc6/0x1e0 [ 802.413536][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 802.413536][ T254] [ 812.455921][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 812.456521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.456521][ T254] dst_init+0x84/0x4a0 [ 812.456521][ T254] dst_alloc+0x97/0x150 [ 812.456521][ T254] ip6_dst_alloc+0x23/0x90 [ 812.456521][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 812.456521][ T254] ip6_pol_route+0x56f/0x840 [ 812.456521][ T254] fib6_rule_lookup+0x334/0x630 [ 812.456521][ T254] ip6_route_output_flags+0x259/0x480 [ 812.456521][ T254] inet6_rtm_getroute+0x980/0xf70 [ 812.456521][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 812.456521][ T254] netlink_rcv_skb+0x130/0x360 [ 812.456521][ T254] netlink_unicast+0x449/0x710 [ 812.456521][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.456521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.456521][ T254] ___sys_sendmsg+0xee/0x170 [ 812.456521][ T254] __sys_sendmsg+0xcd/0x170 [ 812.456521][ T254] do_syscall_64+0xc6/0x1e0 [ 812.456521][ T254] [ 812.458729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.458729][ T254] netdev_get_by_index+0x5e/0x80 [ 812.458729][ T254] fib6_nh_init+0x3d8/0x1580 [ 812.458729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 812.458729][ T254] addrconf_f6i_alloc+0x265/0x560 [ 812.458729][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 812.458729][ T254] addrconf_join_anycast+0x1c0/0x220 [ 812.458729][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 812.458729][ T254] addrconf_dad_completed+0x12b/0xe20 [ 812.458729][ T254] addrconf_dad_begin+0x310/0x670 [ 812.458729][ T254] addrconf_dad_work+0x10b/0xab0 [ 812.458729][ T254] process_one_work+0x84d/0x18a0 [ 812.458729][ T254] worker_thread+0x587/0xd30 [ 812.458729][ T254] kthread+0x28a/0x350 [ 812.458729][ T254] ret_from_fork+0x31/0x70 [ 812.458729][ T254] ret_from_fork_asm+0x1a/0x30 [ 812.458729][ T254] [ 812.460884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.460884][ T254] netdev_get_by_index+0x5e/0x80 [ 812.460884][ T254] fib6_nh_init+0x3d8/0x1580 [ 812.460884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 812.460884][ T254] ip6_route_add+0x1c/0x140 [ 812.460884][ T254] addrconf_prefix_route+0x2a6/0x430 [ 812.460884][ T254] inet6_addr_add+0x4f8/0xa40 [ 812.460884][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 812.460884][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 812.460884][ T254] netlink_rcv_skb+0x130/0x360 [ 812.460884][ T254] netlink_unicast+0x449/0x710 [ 812.460884][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.460884][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.460884][ T254] ___sys_sendmsg+0xee/0x170 [ 812.460884][ T254] __sys_sendmsg+0xcd/0x170 [ 812.460884][ T254] do_syscall_64+0xc6/0x1e0 [ 812.460884][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 812.460884][ T254] [ 812.463154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.463154][ T254] netdev_get_by_index+0x5e/0x80 [ 812.463154][ T254] fib6_nh_init+0x3d8/0x1580 [ 812.463154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 812.463154][ T254] addrconf_f6i_alloc+0x315/0x560 [ 812.463154][ T254] ipv6_add_addr+0x411/0x2000 [ 812.463154][ T254] inet6_addr_add+0x30e/0xa40 [ 812.463154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 812.463154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 812.463154][ T254] netlink_rcv_skb+0x130/0x360 [ 812.463154][ T254] netlink_unicast+0x449/0x710 [ 812.463154][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.463154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.463154][ T254] ___sys_sendmsg+0xee/0x170 [ 812.463154][ T254] __sys_sendmsg+0xcd/0x170 [ 812.463154][ T254] do_syscall_64+0xc6/0x1e0 [ 812.463154][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 812.463154][ T254] [ 812.465436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.465436][ T254] netdev_get_by_index+0x5e/0x80 [ 812.465436][ T254] fib6_nh_init+0x3d8/0x1580 [ 812.465436][ T254] ip6_route_info_create+0xf18/0x17d0 [ 812.465436][ T254] ip6_route_add+0x1c/0x140 [ 812.465436][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 812.465436][ T254] addrconf_add_dev+0xe2/0x170 [ 812.465436][ T254] inet6_addr_add+0x12f/0xa40 [ 812.465436][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 812.465436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 812.465436][ T254] netlink_rcv_skb+0x130/0x360 [ 812.465436][ T254] netlink_unicast+0x449/0x710 [ 812.465436][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.465436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.465436][ T254] ___sys_sendmsg+0xee/0x170 [ 812.465436][ T254] __sys_sendmsg+0xcd/0x170 [ 812.465436][ T254] do_syscall_64+0xc6/0x1e0 [ 812.465436][ T254] [ 812.468022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.468022][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 812.468022][ T254] ipv6_find_idev+0x102/0x170 [ 812.468022][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 812.468022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 812.468022][ T254] netlink_rcv_skb+0x130/0x360 [ 812.468022][ T254] netlink_unicast+0x449/0x710 [ 812.468022][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.468022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.468022][ T254] ___sys_sendmsg+0xee/0x170 [ 812.468022][ T254] __sys_sendmsg+0xcd/0x170 [ 812.468022][ T254] do_syscall_64+0xc6/0x1e0 [ 812.468022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 812.468022][ T254] [ 812.469757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 812.469757][ T254] neigh_parms_alloc+0x1e5/0x510 [ 812.469757][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 812.469757][ T254] ipv6_find_idev+0x102/0x170 [ 812.469757][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 812.469757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 812.469757][ T254] netlink_rcv_skb+0x130/0x360 [ 812.469757][ T254] netlink_unicast+0x449/0x710 [ 812.469757][ T254] netlink_sendmsg+0x723/0xbe0 [ 812.469757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 812.469757][ T254] ___sys_sendmsg+0xee/0x170 [ 812.469757][ T254] __sys_sendmsg+0xcd/0x170 [ 812.469757][ T254] do_syscall_64+0xc6/0x1e0 [ 812.469757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 812.469757][ T254] [ 822.567902][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 822.568457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.568457][ T254] dst_init+0x84/0x4a0 [ 822.568457][ T254] dst_alloc+0x97/0x150 [ 822.568457][ T254] ip6_dst_alloc+0x23/0x90 [ 822.568457][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 822.568457][ T254] ip6_pol_route+0x56f/0x840 [ 822.568457][ T254] fib6_rule_lookup+0x334/0x630 [ 822.568457][ T254] ip6_route_output_flags+0x259/0x480 [ 822.568457][ T254] inet6_rtm_getroute+0x980/0xf70 [ 822.568457][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 822.568457][ T254] netlink_rcv_skb+0x130/0x360 [ 822.568457][ T254] netlink_unicast+0x449/0x710 [ 822.568457][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.568457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.568457][ T254] ___sys_sendmsg+0xee/0x170 [ 822.568457][ T254] __sys_sendmsg+0xcd/0x170 [ 822.568457][ T254] do_syscall_64+0xc6/0x1e0 [ 822.568457][ T254] [ 822.570650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.570650][ T254] netdev_get_by_index+0x5e/0x80 [ 822.570650][ T254] fib6_nh_init+0x3d8/0x1580 [ 822.570650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 822.570650][ T254] addrconf_f6i_alloc+0x265/0x560 [ 822.570650][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 822.570650][ T254] addrconf_join_anycast+0x1c0/0x220 [ 822.570650][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 822.570650][ T254] addrconf_dad_completed+0x12b/0xe20 [ 822.570650][ T254] addrconf_dad_begin+0x310/0x670 [ 822.570650][ T254] addrconf_dad_work+0x10b/0xab0 [ 822.570650][ T254] process_one_work+0x84d/0x18a0 [ 822.570650][ T254] worker_thread+0x587/0xd30 [ 822.570650][ T254] kthread+0x28a/0x350 [ 822.570650][ T254] ret_from_fork+0x31/0x70 [ 822.570650][ T254] ret_from_fork_asm+0x1a/0x30 [ 822.570650][ T254] [ 822.572803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.572803][ T254] netdev_get_by_index+0x5e/0x80 [ 822.572803][ T254] fib6_nh_init+0x3d8/0x1580 [ 822.572803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 822.572803][ T254] ip6_route_add+0x1c/0x140 [ 822.572803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 822.572803][ T254] inet6_addr_add+0x4f8/0xa40 [ 822.572803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 822.572803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 822.572803][ T254] netlink_rcv_skb+0x130/0x360 [ 822.572803][ T254] netlink_unicast+0x449/0x710 [ 822.572803][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.572803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.572803][ T254] ___sys_sendmsg+0xee/0x170 [ 822.572803][ T254] __sys_sendmsg+0xcd/0x170 [ 822.572803][ T254] do_syscall_64+0xc6/0x1e0 [ 822.572803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 822.572803][ T254] [ 822.575059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.575059][ T254] netdev_get_by_index+0x5e/0x80 [ 822.575059][ T254] fib6_nh_init+0x3d8/0x1580 [ 822.575059][ T254] ip6_route_info_create+0xf18/0x17d0 [ 822.575059][ T254] addrconf_f6i_alloc+0x315/0x560 [ 822.575059][ T254] ipv6_add_addr+0x411/0x2000 [ 822.575059][ T254] inet6_addr_add+0x30e/0xa40 [ 822.575059][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 822.575059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 822.575059][ T254] netlink_rcv_skb+0x130/0x360 [ 822.575059][ T254] netlink_unicast+0x449/0x710 [ 822.575059][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.575059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.575059][ T254] ___sys_sendmsg+0xee/0x170 [ 822.575059][ T254] __sys_sendmsg+0xcd/0x170 [ 822.575059][ T254] do_syscall_64+0xc6/0x1e0 [ 822.575059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 822.575059][ T254] [ 822.577306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.577306][ T254] netdev_get_by_index+0x5e/0x80 [ 822.577306][ T254] fib6_nh_init+0x3d8/0x1580 [ 822.577306][ T254] ip6_route_info_create+0xf18/0x17d0 [ 822.577306][ T254] ip6_route_add+0x1c/0x140 [ 822.577306][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 822.577306][ T254] addrconf_add_dev+0xe2/0x170 [ 822.577306][ T254] inet6_addr_add+0x12f/0xa40 [ 822.577306][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 822.577306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 822.577306][ T254] netlink_rcv_skb+0x130/0x360 [ 822.577306][ T254] netlink_unicast+0x449/0x710 [ 822.577306][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.577306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.577306][ T254] ___sys_sendmsg+0xee/0x170 [ 822.577306][ T254] __sys_sendmsg+0xcd/0x170 [ 822.577306][ T254] do_syscall_64+0xc6/0x1e0 [ 822.577306][ T254] [ 822.579508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.579508][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 822.579508][ T254] ipv6_find_idev+0x102/0x170 [ 822.579508][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 822.579508][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 822.579508][ T254] netlink_rcv_skb+0x130/0x360 [ 822.579508][ T254] netlink_unicast+0x449/0x710 [ 822.579508][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.579508][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.579508][ T254] ___sys_sendmsg+0xee/0x170 [ 822.579508][ T254] __sys_sendmsg+0xcd/0x170 [ 822.579508][ T254] do_syscall_64+0xc6/0x1e0 [ 822.579508][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 822.579508][ T254] [ 822.581298][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 822.581298][ T254] neigh_parms_alloc+0x1e5/0x510 [ 822.581298][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 822.581298][ T254] ipv6_find_idev+0x102/0x170 [ 822.581298][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 822.581298][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 822.581298][ T254] netlink_rcv_skb+0x130/0x360 [ 822.581298][ T254] netlink_unicast+0x449/0x710 [ 822.581298][ T254] netlink_sendmsg+0x723/0xbe0 [ 822.581298][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 822.581298][ T254] ___sys_sendmsg+0xee/0x170 [ 822.581298][ T254] __sys_sendmsg+0xcd/0x170 [ 822.581298][ T254] do_syscall_64+0xc6/0x1e0 [ 822.581298][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 822.581298][ T254] [ 832.647939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 832.648664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.648664][ T254] dst_init+0x84/0x4a0 [ 832.648664][ T254] dst_alloc+0x97/0x150 [ 832.648664][ T254] ip6_dst_alloc+0x23/0x90 [ 832.648664][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 832.648664][ T254] ip6_pol_route+0x56f/0x840 [ 832.648664][ T254] fib6_rule_lookup+0x334/0x630 [ 832.648664][ T254] ip6_route_output_flags+0x259/0x480 [ 832.648664][ T254] inet6_rtm_getroute+0x980/0xf70 [ 832.648664][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 832.648664][ T254] netlink_rcv_skb+0x130/0x360 [ 832.648664][ T254] netlink_unicast+0x449/0x710 [ 832.648664][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.648664][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.648664][ T254] ___sys_sendmsg+0xee/0x170 [ 832.648664][ T254] __sys_sendmsg+0xcd/0x170 [ 832.648664][ T254] do_syscall_64+0xc6/0x1e0 [ 832.648664][ T254] [ 832.650948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.650948][ T254] netdev_get_by_index+0x5e/0x80 [ 832.650948][ T254] fib6_nh_init+0x3d8/0x1580 [ 832.650948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 832.650948][ T254] addrconf_f6i_alloc+0x265/0x560 [ 832.650948][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 832.650948][ T254] addrconf_join_anycast+0x1c0/0x220 [ 832.650948][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 832.650948][ T254] addrconf_dad_completed+0x12b/0xe20 [ 832.650948][ T254] addrconf_dad_begin+0x310/0x670 [ 832.650948][ T254] addrconf_dad_work+0x10b/0xab0 [ 832.650948][ T254] process_one_work+0x84d/0x18a0 [ 832.650948][ T254] worker_thread+0x587/0xd30 [ 832.650948][ T254] kthread+0x28a/0x350 [ 832.650948][ T254] ret_from_fork+0x31/0x70 [ 832.650948][ T254] ret_from_fork_asm+0x1a/0x30 [ 832.650948][ T254] [ 832.653142][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.653142][ T254] netdev_get_by_index+0x5e/0x80 [ 832.653142][ T254] fib6_nh_init+0x3d8/0x1580 [ 832.653142][ T254] ip6_route_info_create+0xf18/0x17d0 [ 832.653142][ T254] ip6_route_add+0x1c/0x140 [ 832.653142][ T254] addrconf_prefix_route+0x2a6/0x430 [ 832.653142][ T254] inet6_addr_add+0x4f8/0xa40 [ 832.653142][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 832.653142][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 832.653142][ T254] netlink_rcv_skb+0x130/0x360 [ 832.653142][ T254] netlink_unicast+0x449/0x710 [ 832.653142][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.653142][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.653142][ T254] ___sys_sendmsg+0xee/0x170 [ 832.653142][ T254] __sys_sendmsg+0xcd/0x170 [ 832.653142][ T254] do_syscall_64+0xc6/0x1e0 [ 832.653142][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 832.653142][ T254] [ 832.655443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.655443][ T254] netdev_get_by_index+0x5e/0x80 [ 832.655443][ T254] fib6_nh_init+0x3d8/0x1580 [ 832.655443][ T254] ip6_route_info_create+0xf18/0x17d0 [ 832.655443][ T254] addrconf_f6i_alloc+0x315/0x560 [ 832.655443][ T254] ipv6_add_addr+0x411/0x2000 [ 832.655443][ T254] inet6_addr_add+0x30e/0xa40 [ 832.655443][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 832.655443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 832.655443][ T254] netlink_rcv_skb+0x130/0x360 [ 832.655443][ T254] netlink_unicast+0x449/0x710 [ 832.655443][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.655443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.655443][ T254] ___sys_sendmsg+0xee/0x170 [ 832.655443][ T254] __sys_sendmsg+0xcd/0x170 [ 832.655443][ T254] do_syscall_64+0xc6/0x1e0 [ 832.655443][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 832.655443][ T254] [ 832.657703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.657703][ T254] netdev_get_by_index+0x5e/0x80 [ 832.657703][ T254] fib6_nh_init+0x3d8/0x1580 [ 832.657703][ T254] ip6_route_info_create+0xf18/0x17d0 [ 832.657703][ T254] ip6_route_add+0x1c/0x140 [ 832.657703][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 832.657703][ T254] addrconf_add_dev+0xe2/0x170 [ 832.657703][ T254] inet6_addr_add+0x12f/0xa40 [ 832.657703][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 832.657703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 832.657703][ T254] netlink_rcv_skb+0x130/0x360 [ 832.657703][ T254] netlink_unicast+0x449/0x710 [ 832.657703][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.657703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.657703][ T254] ___sys_sendmsg+0xee/0x170 [ 832.657703][ T254] __sys_sendmsg+0xcd/0x170 [ 832.657703][ T254] do_syscall_64+0xc6/0x1e0 [ 832.657703][ T254] [ 832.659936][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.659936][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 832.659936][ T254] ipv6_find_idev+0x102/0x170 [ 832.659936][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 832.659936][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 832.659936][ T254] netlink_rcv_skb+0x130/0x360 [ 832.659936][ T254] netlink_unicast+0x449/0x710 [ 832.659936][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.659936][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.659936][ T254] ___sys_sendmsg+0xee/0x170 [ 832.659936][ T254] __sys_sendmsg+0xcd/0x170 [ 832.659936][ T254] do_syscall_64+0xc6/0x1e0 [ 832.659936][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 832.659936][ T254] [ 832.661694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 832.661694][ T254] neigh_parms_alloc+0x1e5/0x510 [ 832.661694][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 832.661694][ T254] ipv6_find_idev+0x102/0x170 [ 832.661694][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 832.661694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 832.661694][ T254] netlink_rcv_skb+0x130/0x360 [ 832.661694][ T254] netlink_unicast+0x449/0x710 [ 832.661694][ T254] netlink_sendmsg+0x723/0xbe0 [ 832.661694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 832.661694][ T254] ___sys_sendmsg+0xee/0x170 [ 832.661694][ T254] __sys_sendmsg+0xcd/0x170 [ 832.661694][ T254] do_syscall_64+0xc6/0x1e0 [ 832.661694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 832.661694][ T254] [ 842.911923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 842.912479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.912479][ T254] dst_init+0x84/0x4a0 [ 842.912479][ T254] dst_alloc+0x97/0x150 [ 842.912479][ T254] ip6_dst_alloc+0x23/0x90 [ 842.912479][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 842.912479][ T254] ip6_pol_route+0x56f/0x840 [ 842.912479][ T254] fib6_rule_lookup+0x334/0x630 [ 842.912479][ T254] ip6_route_output_flags+0x259/0x480 [ 842.912479][ T254] inet6_rtm_getroute+0x980/0xf70 [ 842.912479][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 842.912479][ T254] netlink_rcv_skb+0x130/0x360 [ 842.912479][ T254] netlink_unicast+0x449/0x710 [ 842.912479][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.912479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.912479][ T254] ___sys_sendmsg+0xee/0x170 [ 842.912479][ T254] __sys_sendmsg+0xcd/0x170 [ 842.912479][ T254] do_syscall_64+0xc6/0x1e0 [ 842.912479][ T254] [ 842.914987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.914987][ T254] netdev_get_by_index+0x5e/0x80 [ 842.914987][ T254] fib6_nh_init+0x3d8/0x1580 [ 842.914987][ T254] ip6_route_info_create+0xf18/0x17d0 [ 842.914987][ T254] addrconf_f6i_alloc+0x265/0x560 [ 842.914987][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 842.914987][ T254] addrconf_join_anycast+0x1c0/0x220 [ 842.914987][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 842.914987][ T254] addrconf_dad_completed+0x12b/0xe20 [ 842.914987][ T254] addrconf_dad_begin+0x310/0x670 [ 842.914987][ T254] addrconf_dad_work+0x10b/0xab0 [ 842.914987][ T254] process_one_work+0x84d/0x18a0 [ 842.914987][ T254] worker_thread+0x587/0xd30 [ 842.914987][ T254] kthread+0x28a/0x350 [ 842.914987][ T254] ret_from_fork+0x31/0x70 [ 842.914987][ T254] ret_from_fork_asm+0x1a/0x30 [ 842.914987][ T254] [ 842.917144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.917144][ T254] netdev_get_by_index+0x5e/0x80 [ 842.917144][ T254] fib6_nh_init+0x3d8/0x1580 [ 842.917144][ T254] ip6_route_info_create+0xf18/0x17d0 [ 842.917144][ T254] ip6_route_add+0x1c/0x140 [ 842.917144][ T254] addrconf_prefix_route+0x2a6/0x430 [ 842.917144][ T254] inet6_addr_add+0x4f8/0xa40 [ 842.917144][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 842.917144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 842.917144][ T254] netlink_rcv_skb+0x130/0x360 [ 842.917144][ T254] netlink_unicast+0x449/0x710 [ 842.917144][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.917144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.917144][ T254] ___sys_sendmsg+0xee/0x170 [ 842.917144][ T254] __sys_sendmsg+0xcd/0x170 [ 842.917144][ T254] do_syscall_64+0xc6/0x1e0 [ 842.917144][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 842.917144][ T254] [ 842.919386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.919386][ T254] netdev_get_by_index+0x5e/0x80 [ 842.919386][ T254] fib6_nh_init+0x3d8/0x1580 [ 842.919386][ T254] ip6_route_info_create+0xf18/0x17d0 [ 842.919386][ T254] addrconf_f6i_alloc+0x315/0x560 [ 842.919386][ T254] ipv6_add_addr+0x411/0x2000 [ 842.919386][ T254] inet6_addr_add+0x30e/0xa40 [ 842.919386][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 842.919386][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 842.919386][ T254] netlink_rcv_skb+0x130/0x360 [ 842.919386][ T254] netlink_unicast+0x449/0x710 [ 842.919386][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.919386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.919386][ T254] ___sys_sendmsg+0xee/0x170 [ 842.919386][ T254] __sys_sendmsg+0xcd/0x170 [ 842.919386][ T254] do_syscall_64+0xc6/0x1e0 [ 842.919386][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 842.919386][ T254] [ 842.921637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.921637][ T254] netdev_get_by_index+0x5e/0x80 [ 842.921637][ T254] fib6_nh_init+0x3d8/0x1580 [ 842.921637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 842.921637][ T254] ip6_route_add+0x1c/0x140 [ 842.921637][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 842.921637][ T254] addrconf_add_dev+0xe2/0x170 [ 842.921637][ T254] inet6_addr_add+0x12f/0xa40 [ 842.921637][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 842.921637][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 842.921637][ T254] netlink_rcv_skb+0x130/0x360 [ 842.921637][ T254] netlink_unicast+0x449/0x710 [ 842.921637][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.921637][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.921637][ T254] ___sys_sendmsg+0xee/0x170 [ 842.921637][ T254] __sys_sendmsg+0xcd/0x170 [ 842.921637][ T254] do_syscall_64+0xc6/0x1e0 [ 842.921637][ T254] [ 842.923849][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.923849][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 842.923849][ T254] ipv6_find_idev+0x102/0x170 [ 842.923849][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 842.923849][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 842.923849][ T254] netlink_rcv_skb+0x130/0x360 [ 842.923849][ T254] netlink_unicast+0x449/0x710 [ 842.923849][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.923849][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.923849][ T254] ___sys_sendmsg+0xee/0x170 [ 842.923849][ T254] __sys_sendmsg+0xcd/0x170 [ 842.923849][ T254] do_syscall_64+0xc6/0x1e0 [ 842.923849][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 842.923849][ T254] [ 842.925576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 842.925576][ T254] neigh_parms_alloc+0x1e5/0x510 [ 842.925576][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 842.925576][ T254] ipv6_find_idev+0x102/0x170 [ 842.925576][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 842.925576][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 842.925576][ T254] netlink_rcv_skb+0x130/0x360 [ 842.925576][ T254] netlink_unicast+0x449/0x710 [ 842.925576][ T254] netlink_sendmsg+0x723/0xbe0 [ 842.925576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 842.925576][ T254] ___sys_sendmsg+0xee/0x170 [ 842.925576][ T254] __sys_sendmsg+0xcd/0x170 [ 842.925576][ T254] do_syscall_64+0xc6/0x1e0 [ 842.925576][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 842.925576][ T254] [ 853.103974][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 853.104546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.104546][ T254] dst_init+0x84/0x4a0 [ 853.104546][ T254] dst_alloc+0x97/0x150 [ 853.104546][ T254] ip6_dst_alloc+0x23/0x90 [ 853.104546][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 853.104546][ T254] ip6_pol_route+0x56f/0x840 [ 853.104546][ T254] fib6_rule_lookup+0x334/0x630 [ 853.104546][ T254] ip6_route_output_flags+0x259/0x480 [ 853.104546][ T254] inet6_rtm_getroute+0x980/0xf70 [ 853.104546][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 853.104546][ T254] netlink_rcv_skb+0x130/0x360 [ 853.104546][ T254] netlink_unicast+0x449/0x710 [ 853.104546][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.104546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.104546][ T254] ___sys_sendmsg+0xee/0x170 [ 853.104546][ T254] __sys_sendmsg+0xcd/0x170 [ 853.104546][ T254] do_syscall_64+0xc6/0x1e0 [ 853.104546][ T254] [ 853.106771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.106771][ T254] netdev_get_by_index+0x5e/0x80 [ 853.106771][ T254] fib6_nh_init+0x3d8/0x1580 [ 853.106771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 853.106771][ T254] addrconf_f6i_alloc+0x265/0x560 [ 853.106771][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 853.106771][ T254] addrconf_join_anycast+0x1c0/0x220 [ 853.106771][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 853.106771][ T254] addrconf_dad_completed+0x12b/0xe20 [ 853.106771][ T254] addrconf_dad_begin+0x310/0x670 [ 853.106771][ T254] addrconf_dad_work+0x10b/0xab0 [ 853.106771][ T254] process_one_work+0x84d/0x18a0 [ 853.106771][ T254] worker_thread+0x587/0xd30 [ 853.106771][ T254] kthread+0x28a/0x350 [ 853.106771][ T254] ret_from_fork+0x31/0x70 [ 853.106771][ T254] ret_from_fork_asm+0x1a/0x30 [ 853.106771][ T254] [ 853.108952][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.108952][ T254] netdev_get_by_index+0x5e/0x80 [ 853.108952][ T254] fib6_nh_init+0x3d8/0x1580 [ 853.108952][ T254] ip6_route_info_create+0xf18/0x17d0 [ 853.108952][ T254] ip6_route_add+0x1c/0x140 [ 853.108952][ T254] addrconf_prefix_route+0x2a6/0x430 [ 853.108952][ T254] inet6_addr_add+0x4f8/0xa40 [ 853.108952][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 853.108952][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.108952][ T254] netlink_rcv_skb+0x130/0x360 [ 853.108952][ T254] netlink_unicast+0x449/0x710 [ 853.108952][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.108952][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.108952][ T254] ___sys_sendmsg+0xee/0x170 [ 853.108952][ T254] __sys_sendmsg+0xcd/0x170 [ 853.108952][ T254] do_syscall_64+0xc6/0x1e0 [ 853.108952][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.108952][ T254] [ 853.111224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.111224][ T254] netdev_get_by_index+0x5e/0x80 [ 853.111224][ T254] fib6_nh_init+0x3d8/0x1580 [ 853.111224][ T254] ip6_route_info_create+0xf18/0x17d0 [ 853.111224][ T254] addrconf_f6i_alloc+0x315/0x560 [ 853.111224][ T254] ipv6_add_addr+0x411/0x2000 [ 853.111224][ T254] inet6_addr_add+0x30e/0xa40 [ 853.111224][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 853.111224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.111224][ T254] netlink_rcv_skb+0x130/0x360 [ 853.111224][ T254] netlink_unicast+0x449/0x710 [ 853.111224][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.111224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.111224][ T254] ___sys_sendmsg+0xee/0x170 [ 853.111224][ T254] __sys_sendmsg+0xcd/0x170 [ 853.111224][ T254] do_syscall_64+0xc6/0x1e0 [ 853.111224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.111224][ T254] [ 853.113503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.113503][ T254] netdev_get_by_index+0x5e/0x80 [ 853.113503][ T254] fib6_nh_init+0x3d8/0x1580 [ 853.113503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 853.113503][ T254] ip6_route_add+0x1c/0x140 [ 853.113503][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 853.113503][ T254] addrconf_add_dev+0xe2/0x170 [ 853.113503][ T254] inet6_addr_add+0x12f/0xa40 [ 853.113503][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 853.113503][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.113503][ T254] netlink_rcv_skb+0x130/0x360 [ 853.113503][ T254] netlink_unicast+0x449/0x710 [ 853.113503][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.113503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.113503][ T254] ___sys_sendmsg+0xee/0x170 [ 853.113503][ T254] __sys_sendmsg+0xcd/0x170 [ 853.113503][ T254] do_syscall_64+0xc6/0x1e0 [ 853.113503][ T254] [ 853.116245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.116245][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 853.116245][ T254] ipv6_find_idev+0x102/0x170 [ 853.116245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 853.116245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.116245][ T254] netlink_rcv_skb+0x130/0x360 [ 853.116245][ T254] netlink_unicast+0x449/0x710 [ 853.116245][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.116245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.116245][ T254] ___sys_sendmsg+0xee/0x170 [ 853.116245][ T254] __sys_sendmsg+0xcd/0x170 [ 853.116245][ T254] do_syscall_64+0xc6/0x1e0 [ 853.116245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.116245][ T254] [ 853.117988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 853.117988][ T254] neigh_parms_alloc+0x1e5/0x510 [ 853.117988][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 853.117988][ T254] ipv6_find_idev+0x102/0x170 [ 853.117988][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 853.117988][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 853.117988][ T254] netlink_rcv_skb+0x130/0x360 [ 853.117988][ T254] netlink_unicast+0x449/0x710 [ 853.117988][ T254] netlink_sendmsg+0x723/0xbe0 [ 853.117988][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 853.117988][ T254] ___sys_sendmsg+0xee/0x170 [ 853.117988][ T254] __sys_sendmsg+0xcd/0x170 [ 853.117988][ T254] do_syscall_64+0xc6/0x1e0 [ 853.117988][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 853.117988][ T254] [ 863.359825][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 863.360403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.360403][ T254] dst_init+0x84/0x4a0 [ 863.360403][ T254] dst_alloc+0x97/0x150 [ 863.360403][ T254] ip6_dst_alloc+0x23/0x90 [ 863.360403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 863.360403][ T254] ip6_pol_route+0x56f/0x840 [ 863.360403][ T254] fib6_rule_lookup+0x334/0x630 [ 863.360403][ T254] ip6_route_output_flags+0x259/0x480 [ 863.360403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 863.360403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 863.360403][ T254] netlink_rcv_skb+0x130/0x360 [ 863.360403][ T254] netlink_unicast+0x449/0x710 [ 863.360403][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.360403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.360403][ T254] ___sys_sendmsg+0xee/0x170 [ 863.360403][ T254] __sys_sendmsg+0xcd/0x170 [ 863.360403][ T254] do_syscall_64+0xc6/0x1e0 [ 863.360403][ T254] [ 863.362663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.362663][ T254] netdev_get_by_index+0x5e/0x80 [ 863.362663][ T254] fib6_nh_init+0x3d8/0x1580 [ 863.362663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 863.362663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 863.362663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 863.362663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 863.362663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 863.362663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 863.362663][ T254] addrconf_dad_begin+0x310/0x670 [ 863.362663][ T254] addrconf_dad_work+0x10b/0xab0 [ 863.362663][ T254] process_one_work+0x84d/0x18a0 [ 863.362663][ T254] worker_thread+0x587/0xd30 [ 863.362663][ T254] kthread+0x28a/0x350 [ 863.362663][ T254] ret_from_fork+0x31/0x70 [ 863.362663][ T254] ret_from_fork_asm+0x1a/0x30 [ 863.362663][ T254] [ 863.364856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.364856][ T254] netdev_get_by_index+0x5e/0x80 [ 863.364856][ T254] fib6_nh_init+0x3d8/0x1580 [ 863.364856][ T254] ip6_route_info_create+0xf18/0x17d0 [ 863.364856][ T254] ip6_route_add+0x1c/0x140 [ 863.364856][ T254] addrconf_prefix_route+0x2a6/0x430 [ 863.364856][ T254] inet6_addr_add+0x4f8/0xa40 [ 863.364856][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 863.364856][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.364856][ T254] netlink_rcv_skb+0x130/0x360 [ 863.364856][ T254] netlink_unicast+0x449/0x710 [ 863.364856][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.364856][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.364856][ T254] ___sys_sendmsg+0xee/0x170 [ 863.364856][ T254] __sys_sendmsg+0xcd/0x170 [ 863.364856][ T254] do_syscall_64+0xc6/0x1e0 [ 863.364856][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.364856][ T254] [ 863.367127][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.367127][ T254] netdev_get_by_index+0x5e/0x80 [ 863.367127][ T254] fib6_nh_init+0x3d8/0x1580 [ 863.367127][ T254] ip6_route_info_create+0xf18/0x17d0 [ 863.367127][ T254] addrconf_f6i_alloc+0x315/0x560 [ 863.367127][ T254] ipv6_add_addr+0x411/0x2000 [ 863.367127][ T254] inet6_addr_add+0x30e/0xa40 [ 863.367127][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 863.367127][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.367127][ T254] netlink_rcv_skb+0x130/0x360 [ 863.367127][ T254] netlink_unicast+0x449/0x710 [ 863.367127][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.367127][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.367127][ T254] ___sys_sendmsg+0xee/0x170 [ 863.367127][ T254] __sys_sendmsg+0xcd/0x170 [ 863.367127][ T254] do_syscall_64+0xc6/0x1e0 [ 863.367127][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.367127][ T254] [ 863.369394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.369394][ T254] netdev_get_by_index+0x5e/0x80 [ 863.369394][ T254] fib6_nh_init+0x3d8/0x1580 [ 863.369394][ T254] ip6_route_info_create+0xf18/0x17d0 [ 863.369394][ T254] ip6_route_add+0x1c/0x140 [ 863.369394][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 863.369394][ T254] addrconf_add_dev+0xe2/0x170 [ 863.369394][ T254] inet6_addr_add+0x12f/0xa40 [ 863.369394][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 863.369394][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.369394][ T254] netlink_rcv_skb+0x130/0x360 [ 863.369394][ T254] netlink_unicast+0x449/0x710 [ 863.369394][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.369394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.369394][ T254] ___sys_sendmsg+0xee/0x170 [ 863.369394][ T254] __sys_sendmsg+0xcd/0x170 [ 863.369394][ T254] do_syscall_64+0xc6/0x1e0 [ 863.369394][ T254] [ 863.371757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.371757][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 863.371757][ T254] ipv6_find_idev+0x102/0x170 [ 863.371757][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 863.371757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.371757][ T254] netlink_rcv_skb+0x130/0x360 [ 863.371757][ T254] netlink_unicast+0x449/0x710 [ 863.371757][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.371757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.371757][ T254] ___sys_sendmsg+0xee/0x170 [ 863.371757][ T254] __sys_sendmsg+0xcd/0x170 [ 863.371757][ T254] do_syscall_64+0xc6/0x1e0 [ 863.371757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.371757][ T254] [ 863.373514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 863.373514][ T254] neigh_parms_alloc+0x1e5/0x510 [ 863.373514][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 863.373514][ T254] ipv6_find_idev+0x102/0x170 [ 863.373514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 863.373514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 863.373514][ T254] netlink_rcv_skb+0x130/0x360 [ 863.373514][ T254] netlink_unicast+0x449/0x710 [ 863.373514][ T254] netlink_sendmsg+0x723/0xbe0 [ 863.373514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 863.373514][ T254] ___sys_sendmsg+0xee/0x170 [ 863.373514][ T254] __sys_sendmsg+0xcd/0x170 [ 863.373514][ T254] do_syscall_64+0xc6/0x1e0 [ 863.373514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 863.373514][ T254] [ 873.495883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 873.496445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.496445][ T254] dst_init+0x84/0x4a0 [ 873.496445][ T254] dst_alloc+0x97/0x150 [ 873.496445][ T254] ip6_dst_alloc+0x23/0x90 [ 873.496445][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 873.496445][ T254] ip6_pol_route+0x56f/0x840 [ 873.496445][ T254] fib6_rule_lookup+0x334/0x630 [ 873.496445][ T254] ip6_route_output_flags+0x259/0x480 [ 873.496445][ T254] inet6_rtm_getroute+0x980/0xf70 [ 873.496445][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 873.496445][ T254] netlink_rcv_skb+0x130/0x360 [ 873.496445][ T254] netlink_unicast+0x449/0x710 [ 873.496445][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.496445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.496445][ T254] ___sys_sendmsg+0xee/0x170 [ 873.496445][ T254] __sys_sendmsg+0xcd/0x170 [ 873.496445][ T254] do_syscall_64+0xc6/0x1e0 [ 873.496445][ T254] [ 873.498678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.498678][ T254] netdev_get_by_index+0x5e/0x80 [ 873.498678][ T254] fib6_nh_init+0x3d8/0x1580 [ 873.498678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 873.498678][ T254] addrconf_f6i_alloc+0x265/0x560 [ 873.498678][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 873.498678][ T254] addrconf_join_anycast+0x1c0/0x220 [ 873.498678][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 873.498678][ T254] addrconf_dad_completed+0x12b/0xe20 [ 873.498678][ T254] addrconf_dad_begin+0x310/0x670 [ 873.498678][ T254] addrconf_dad_work+0x10b/0xab0 [ 873.498678][ T254] process_one_work+0x84d/0x18a0 [ 873.498678][ T254] worker_thread+0x587/0xd30 [ 873.498678][ T254] kthread+0x28a/0x350 [ 873.498678][ T254] ret_from_fork+0x31/0x70 [ 873.498678][ T254] ret_from_fork_asm+0x1a/0x30 [ 873.498678][ T254] [ 873.500855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.500855][ T254] netdev_get_by_index+0x5e/0x80 [ 873.500855][ T254] fib6_nh_init+0x3d8/0x1580 [ 873.500855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 873.500855][ T254] ip6_route_add+0x1c/0x140 [ 873.500855][ T254] addrconf_prefix_route+0x2a6/0x430 [ 873.500855][ T254] inet6_addr_add+0x4f8/0xa40 [ 873.500855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 873.500855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.500855][ T254] netlink_rcv_skb+0x130/0x360 [ 873.500855][ T254] netlink_unicast+0x449/0x710 [ 873.500855][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.500855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.500855][ T254] ___sys_sendmsg+0xee/0x170 [ 873.500855][ T254] __sys_sendmsg+0xcd/0x170 [ 873.500855][ T254] do_syscall_64+0xc6/0x1e0 [ 873.500855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.500855][ T254] [ 873.503145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.503145][ T254] netdev_get_by_index+0x5e/0x80 [ 873.503145][ T254] fib6_nh_init+0x3d8/0x1580 [ 873.503145][ T254] ip6_route_info_create+0xf18/0x17d0 [ 873.503145][ T254] addrconf_f6i_alloc+0x315/0x560 [ 873.503145][ T254] ipv6_add_addr+0x411/0x2000 [ 873.503145][ T254] inet6_addr_add+0x30e/0xa40 [ 873.503145][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 873.503145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.503145][ T254] netlink_rcv_skb+0x130/0x360 [ 873.503145][ T254] netlink_unicast+0x449/0x710 [ 873.503145][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.503145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.503145][ T254] ___sys_sendmsg+0xee/0x170 [ 873.503145][ T254] __sys_sendmsg+0xcd/0x170 [ 873.503145][ T254] do_syscall_64+0xc6/0x1e0 [ 873.503145][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.503145][ T254] [ 873.505431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.505431][ T254] netdev_get_by_index+0x5e/0x80 [ 873.505431][ T254] fib6_nh_init+0x3d8/0x1580 [ 873.505431][ T254] ip6_route_info_create+0xf18/0x17d0 [ 873.505431][ T254] ip6_route_add+0x1c/0x140 [ 873.505431][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 873.505431][ T254] addrconf_add_dev+0xe2/0x170 [ 873.505431][ T254] inet6_addr_add+0x12f/0xa40 [ 873.505431][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 873.505431][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.505431][ T254] netlink_rcv_skb+0x130/0x360 [ 873.505431][ T254] netlink_unicast+0x449/0x710 [ 873.505431][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.505431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.505431][ T254] ___sys_sendmsg+0xee/0x170 [ 873.505431][ T254] __sys_sendmsg+0xcd/0x170 [ 873.505431][ T254] do_syscall_64+0xc6/0x1e0 [ 873.505431][ T254] [ 873.507653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.507653][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 873.507653][ T254] ipv6_find_idev+0x102/0x170 [ 873.507653][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 873.507653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.507653][ T254] netlink_rcv_skb+0x130/0x360 [ 873.507653][ T254] netlink_unicast+0x449/0x710 [ 873.507653][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.507653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.507653][ T254] ___sys_sendmsg+0xee/0x170 [ 873.507653][ T254] __sys_sendmsg+0xcd/0x170 [ 873.507653][ T254] do_syscall_64+0xc6/0x1e0 [ 873.507653][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.507653][ T254] [ 873.509505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 873.509505][ T254] neigh_parms_alloc+0x1e5/0x510 [ 873.509505][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 873.509505][ T254] ipv6_find_idev+0x102/0x170 [ 873.509505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 873.509505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 873.509505][ T254] netlink_rcv_skb+0x130/0x360 [ 873.509505][ T254] netlink_unicast+0x449/0x710 [ 873.509505][ T254] netlink_sendmsg+0x723/0xbe0 [ 873.509505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 873.509505][ T254] ___sys_sendmsg+0xee/0x170 [ 873.509505][ T254] __sys_sendmsg+0xcd/0x170 [ 873.509505][ T254] do_syscall_64+0xc6/0x1e0 [ 873.509505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 873.509505][ T254] [ 883.751900][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 883.752464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.752464][ T254] dst_init+0x84/0x4a0 [ 883.752464][ T254] dst_alloc+0x97/0x150 [ 883.752464][ T254] ip6_dst_alloc+0x23/0x90 [ 883.752464][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 883.752464][ T254] ip6_pol_route+0x56f/0x840 [ 883.752464][ T254] fib6_rule_lookup+0x334/0x630 [ 883.752464][ T254] ip6_route_output_flags+0x259/0x480 [ 883.752464][ T254] inet6_rtm_getroute+0x980/0xf70 [ 883.752464][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 883.752464][ T254] netlink_rcv_skb+0x130/0x360 [ 883.752464][ T254] netlink_unicast+0x449/0x710 [ 883.752464][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.752464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.752464][ T254] ___sys_sendmsg+0xee/0x170 [ 883.752464][ T254] __sys_sendmsg+0xcd/0x170 [ 883.752464][ T254] do_syscall_64+0xc6/0x1e0 [ 883.752464][ T254] [ 883.754834][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.754834][ T254] netdev_get_by_index+0x5e/0x80 [ 883.754834][ T254] fib6_nh_init+0x3d8/0x1580 [ 883.754834][ T254] ip6_route_info_create+0xf18/0x17d0 [ 883.754834][ T254] addrconf_f6i_alloc+0x265/0x560 [ 883.754834][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 883.754834][ T254] addrconf_join_anycast+0x1c0/0x220 [ 883.754834][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 883.754834][ T254] addrconf_dad_completed+0x12b/0xe20 [ 883.754834][ T254] addrconf_dad_begin+0x310/0x670 [ 883.754834][ T254] addrconf_dad_work+0x10b/0xab0 [ 883.754834][ T254] process_one_work+0x84d/0x18a0 [ 883.754834][ T254] worker_thread+0x587/0xd30 [ 883.754834][ T254] kthread+0x28a/0x350 [ 883.754834][ T254] ret_from_fork+0x31/0x70 [ 883.754834][ T254] ret_from_fork_asm+0x1a/0x30 [ 883.754834][ T254] [ 883.757018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.757018][ T254] netdev_get_by_index+0x5e/0x80 [ 883.757018][ T254] fib6_nh_init+0x3d8/0x1580 [ 883.757018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 883.757018][ T254] ip6_route_add+0x1c/0x140 [ 883.757018][ T254] addrconf_prefix_route+0x2a6/0x430 [ 883.757018][ T254] inet6_addr_add+0x4f8/0xa40 [ 883.757018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 883.757018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 883.757018][ T254] netlink_rcv_skb+0x130/0x360 [ 883.757018][ T254] netlink_unicast+0x449/0x710 [ 883.757018][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.757018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.757018][ T254] ___sys_sendmsg+0xee/0x170 [ 883.757018][ T254] __sys_sendmsg+0xcd/0x170 [ 883.757018][ T254] do_syscall_64+0xc6/0x1e0 [ 883.757018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 883.757018][ T254] [ 883.759284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.759284][ T254] netdev_get_by_index+0x5e/0x80 [ 883.759284][ T254] fib6_nh_init+0x3d8/0x1580 [ 883.759284][ T254] ip6_route_info_create+0xf18/0x17d0 [ 883.759284][ T254] addrconf_f6i_alloc+0x315/0x560 [ 883.759284][ T254] ipv6_add_addr+0x411/0x2000 [ 883.759284][ T254] inet6_addr_add+0x30e/0xa40 [ 883.759284][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 883.759284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 883.759284][ T254] netlink_rcv_skb+0x130/0x360 [ 883.759284][ T254] netlink_unicast+0x449/0x710 [ 883.759284][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.759284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.759284][ T254] ___sys_sendmsg+0xee/0x170 [ 883.759284][ T254] __sys_sendmsg+0xcd/0x170 [ 883.759284][ T254] do_syscall_64+0xc6/0x1e0 [ 883.759284][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 883.759284][ T254] [ 883.761564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.761564][ T254] netdev_get_by_index+0x5e/0x80 [ 883.761564][ T254] fib6_nh_init+0x3d8/0x1580 [ 883.761564][ T254] ip6_route_info_create+0xf18/0x17d0 [ 883.761564][ T254] ip6_route_add+0x1c/0x140 [ 883.761564][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 883.761564][ T254] addrconf_add_dev+0xe2/0x170 [ 883.761564][ T254] inet6_addr_add+0x12f/0xa40 [ 883.761564][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 883.761564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 883.761564][ T254] netlink_rcv_skb+0x130/0x360 [ 883.761564][ T254] netlink_unicast+0x449/0x710 [ 883.761564][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.761564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.761564][ T254] ___sys_sendmsg+0xee/0x170 [ 883.761564][ T254] __sys_sendmsg+0xcd/0x170 [ 883.761564][ T254] do_syscall_64+0xc6/0x1e0 [ 883.761564][ T254] [ 883.763812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.763812][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 883.763812][ T254] ipv6_find_idev+0x102/0x170 [ 883.763812][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 883.763812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 883.763812][ T254] netlink_rcv_skb+0x130/0x360 [ 883.763812][ T254] netlink_unicast+0x449/0x710 [ 883.763812][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.763812][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.763812][ T254] ___sys_sendmsg+0xee/0x170 [ 883.763812][ T254] __sys_sendmsg+0xcd/0x170 [ 883.763812][ T254] do_syscall_64+0xc6/0x1e0 [ 883.763812][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 883.763812][ T254] [ 883.765579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 883.765579][ T254] neigh_parms_alloc+0x1e5/0x510 [ 883.765579][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 883.765579][ T254] ipv6_find_idev+0x102/0x170 [ 883.765579][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 883.765579][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 883.765579][ T254] netlink_rcv_skb+0x130/0x360 [ 883.765579][ T254] netlink_unicast+0x449/0x710 [ 883.765579][ T254] netlink_sendmsg+0x723/0xbe0 [ 883.765579][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 883.765579][ T254] ___sys_sendmsg+0xee/0x170 [ 883.765579][ T254] __sys_sendmsg+0xcd/0x170 [ 883.765579][ T254] do_syscall_64+0xc6/0x1e0 [ 883.765579][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 883.765579][ T254] [ 894.007884][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 894.008439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.008439][ T254] dst_init+0x84/0x4a0 [ 894.008439][ T254] dst_alloc+0x97/0x150 [ 894.008439][ T254] ip6_dst_alloc+0x23/0x90 [ 894.008439][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 894.008439][ T254] ip6_pol_route+0x56f/0x840 [ 894.008439][ T254] fib6_rule_lookup+0x334/0x630 [ 894.008439][ T254] ip6_route_output_flags+0x259/0x480 [ 894.008439][ T254] inet6_rtm_getroute+0x980/0xf70 [ 894.008439][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 894.008439][ T254] netlink_rcv_skb+0x130/0x360 [ 894.008439][ T254] netlink_unicast+0x449/0x710 [ 894.008439][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.008439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.008439][ T254] ___sys_sendmsg+0xee/0x170 [ 894.008439][ T254] __sys_sendmsg+0xcd/0x170 [ 894.008439][ T254] do_syscall_64+0xc6/0x1e0 [ 894.008439][ T254] [ 894.010694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.010694][ T254] netdev_get_by_index+0x5e/0x80 [ 894.010694][ T254] fib6_nh_init+0x3d8/0x1580 [ 894.010694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 894.010694][ T254] addrconf_f6i_alloc+0x265/0x560 [ 894.010694][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 894.010694][ T254] addrconf_join_anycast+0x1c0/0x220 [ 894.010694][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 894.010694][ T254] addrconf_dad_completed+0x12b/0xe20 [ 894.010694][ T254] addrconf_dad_begin+0x310/0x670 [ 894.010694][ T254] addrconf_dad_work+0x10b/0xab0 [ 894.010694][ T254] process_one_work+0x84d/0x18a0 [ 894.010694][ T254] worker_thread+0x587/0xd30 [ 894.010694][ T254] kthread+0x28a/0x350 [ 894.010694][ T254] ret_from_fork+0x31/0x70 [ 894.010694][ T254] ret_from_fork_asm+0x1a/0x30 [ 894.010694][ T254] [ 894.012908][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.012908][ T254] netdev_get_by_index+0x5e/0x80 [ 894.012908][ T254] fib6_nh_init+0x3d8/0x1580 [ 894.012908][ T254] ip6_route_info_create+0xf18/0x17d0 [ 894.012908][ T254] ip6_route_add+0x1c/0x140 [ 894.012908][ T254] addrconf_prefix_route+0x2a6/0x430 [ 894.012908][ T254] inet6_addr_add+0x4f8/0xa40 [ 894.012908][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 894.012908][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.012908][ T254] netlink_rcv_skb+0x130/0x360 [ 894.012908][ T254] netlink_unicast+0x449/0x710 [ 894.012908][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.012908][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.012908][ T254] ___sys_sendmsg+0xee/0x170 [ 894.012908][ T254] __sys_sendmsg+0xcd/0x170 [ 894.012908][ T254] do_syscall_64+0xc6/0x1e0 [ 894.012908][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.012908][ T254] [ 894.015182][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.015182][ T254] netdev_get_by_index+0x5e/0x80 [ 894.015182][ T254] fib6_nh_init+0x3d8/0x1580 [ 894.015182][ T254] ip6_route_info_create+0xf18/0x17d0 [ 894.015182][ T254] addrconf_f6i_alloc+0x315/0x560 [ 894.015182][ T254] ipv6_add_addr+0x411/0x2000 [ 894.015182][ T254] inet6_addr_add+0x30e/0xa40 [ 894.015182][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 894.015182][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.015182][ T254] netlink_rcv_skb+0x130/0x360 [ 894.015182][ T254] netlink_unicast+0x449/0x710 [ 894.015182][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.015182][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.015182][ T254] ___sys_sendmsg+0xee/0x170 [ 894.015182][ T254] __sys_sendmsg+0xcd/0x170 [ 894.015182][ T254] do_syscall_64+0xc6/0x1e0 [ 894.015182][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.015182][ T254] [ 894.017455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.017455][ T254] netdev_get_by_index+0x5e/0x80 [ 894.017455][ T254] fib6_nh_init+0x3d8/0x1580 [ 894.017455][ T254] ip6_route_info_create+0xf18/0x17d0 [ 894.017455][ T254] ip6_route_add+0x1c/0x140 [ 894.017455][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 894.017455][ T254] addrconf_add_dev+0xe2/0x170 [ 894.017455][ T254] inet6_addr_add+0x12f/0xa40 [ 894.017455][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 894.017455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.017455][ T254] netlink_rcv_skb+0x130/0x360 [ 894.017455][ T254] netlink_unicast+0x449/0x710 [ 894.017455][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.017455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.017455][ T254] ___sys_sendmsg+0xee/0x170 [ 894.017455][ T254] __sys_sendmsg+0xcd/0x170 [ 894.017455][ T254] do_syscall_64+0xc6/0x1e0 [ 894.017455][ T254] [ 894.019803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.019803][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 894.019803][ T254] ipv6_find_idev+0x102/0x170 [ 894.019803][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 894.019803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.019803][ T254] netlink_rcv_skb+0x130/0x360 [ 894.019803][ T254] netlink_unicast+0x449/0x710 [ 894.019803][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.019803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.019803][ T254] ___sys_sendmsg+0xee/0x170 [ 894.019803][ T254] __sys_sendmsg+0xcd/0x170 [ 894.019803][ T254] do_syscall_64+0xc6/0x1e0 [ 894.019803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.019803][ T254] [ 894.021557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 894.021557][ T254] neigh_parms_alloc+0x1e5/0x510 [ 894.021557][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 894.021557][ T254] ipv6_find_idev+0x102/0x170 [ 894.021557][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 894.021557][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 894.021557][ T254] netlink_rcv_skb+0x130/0x360 [ 894.021557][ T254] netlink_unicast+0x449/0x710 [ 894.021557][ T254] netlink_sendmsg+0x723/0xbe0 [ 894.021557][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 894.021557][ T254] ___sys_sendmsg+0xee/0x170 [ 894.021557][ T254] __sys_sendmsg+0xcd/0x170 [ 894.021557][ T254] do_syscall_64+0xc6/0x1e0 [ 894.021557][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 894.021557][ T254] [ 904.079902][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 904.080434][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.080434][ T254] dst_init+0x84/0x4a0 [ 904.080434][ T254] dst_alloc+0x97/0x150 [ 904.080434][ T254] ip6_dst_alloc+0x23/0x90 [ 904.080434][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 904.080434][ T254] ip6_pol_route+0x56f/0x840 [ 904.080434][ T254] fib6_rule_lookup+0x334/0x630 [ 904.080434][ T254] ip6_route_output_flags+0x259/0x480 [ 904.080434][ T254] inet6_rtm_getroute+0x980/0xf70 [ 904.080434][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 904.080434][ T254] netlink_rcv_skb+0x130/0x360 [ 904.080434][ T254] netlink_unicast+0x449/0x710 [ 904.080434][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.080434][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.080434][ T254] ___sys_sendmsg+0xee/0x170 [ 904.080434][ T254] __sys_sendmsg+0xcd/0x170 [ 904.080434][ T254] do_syscall_64+0xc6/0x1e0 [ 904.080434][ T254] [ 904.082674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.082674][ T254] netdev_get_by_index+0x5e/0x80 [ 904.082674][ T254] fib6_nh_init+0x3d8/0x1580 [ 904.082674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 904.082674][ T254] addrconf_f6i_alloc+0x265/0x560 [ 904.082674][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 904.082674][ T254] addrconf_join_anycast+0x1c0/0x220 [ 904.082674][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 904.082674][ T254] addrconf_dad_completed+0x12b/0xe20 [ 904.082674][ T254] addrconf_dad_begin+0x310/0x670 [ 904.082674][ T254] addrconf_dad_work+0x10b/0xab0 [ 904.082674][ T254] process_one_work+0x84d/0x18a0 [ 904.082674][ T254] worker_thread+0x587/0xd30 [ 904.082674][ T254] kthread+0x28a/0x350 [ 904.082674][ T254] ret_from_fork+0x31/0x70 [ 904.082674][ T254] ret_from_fork_asm+0x1a/0x30 [ 904.082674][ T254] [ 904.084847][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.084847][ T254] netdev_get_by_index+0x5e/0x80 [ 904.084847][ T254] fib6_nh_init+0x3d8/0x1580 [ 904.084847][ T254] ip6_route_info_create+0xf18/0x17d0 [ 904.084847][ T254] ip6_route_add+0x1c/0x140 [ 904.084847][ T254] addrconf_prefix_route+0x2a6/0x430 [ 904.084847][ T254] inet6_addr_add+0x4f8/0xa40 [ 904.084847][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 904.084847][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.084847][ T254] netlink_rcv_skb+0x130/0x360 [ 904.084847][ T254] netlink_unicast+0x449/0x710 [ 904.084847][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.084847][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.084847][ T254] ___sys_sendmsg+0xee/0x170 [ 904.084847][ T254] __sys_sendmsg+0xcd/0x170 [ 904.084847][ T254] do_syscall_64+0xc6/0x1e0 [ 904.084847][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.084847][ T254] [ 904.087099][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.087099][ T254] netdev_get_by_index+0x5e/0x80 [ 904.087099][ T254] fib6_nh_init+0x3d8/0x1580 [ 904.087099][ T254] ip6_route_info_create+0xf18/0x17d0 [ 904.087099][ T254] addrconf_f6i_alloc+0x315/0x560 [ 904.087099][ T254] ipv6_add_addr+0x411/0x2000 [ 904.087099][ T254] inet6_addr_add+0x30e/0xa40 [ 904.087099][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 904.087099][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.087099][ T254] netlink_rcv_skb+0x130/0x360 [ 904.087099][ T254] netlink_unicast+0x449/0x710 [ 904.087099][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.087099][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.087099][ T254] ___sys_sendmsg+0xee/0x170 [ 904.087099][ T254] __sys_sendmsg+0xcd/0x170 [ 904.087099][ T254] do_syscall_64+0xc6/0x1e0 [ 904.087099][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.087099][ T254] [ 904.089341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.089341][ T254] netdev_get_by_index+0x5e/0x80 [ 904.089341][ T254] fib6_nh_init+0x3d8/0x1580 [ 904.089341][ T254] ip6_route_info_create+0xf18/0x17d0 [ 904.089341][ T254] ip6_route_add+0x1c/0x140 [ 904.089341][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 904.089341][ T254] addrconf_add_dev+0xe2/0x170 [ 904.089341][ T254] inet6_addr_add+0x12f/0xa40 [ 904.089341][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 904.089341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.089341][ T254] netlink_rcv_skb+0x130/0x360 [ 904.089341][ T254] netlink_unicast+0x449/0x710 [ 904.089341][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.089341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.089341][ T254] ___sys_sendmsg+0xee/0x170 [ 904.089341][ T254] __sys_sendmsg+0xcd/0x170 [ 904.089341][ T254] do_syscall_64+0xc6/0x1e0 [ 904.089341][ T254] [ 904.091552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.091552][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 904.091552][ T254] ipv6_find_idev+0x102/0x170 [ 904.091552][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 904.091552][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.091552][ T254] netlink_rcv_skb+0x130/0x360 [ 904.091552][ T254] netlink_unicast+0x449/0x710 [ 904.091552][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.091552][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.091552][ T254] ___sys_sendmsg+0xee/0x170 [ 904.091552][ T254] __sys_sendmsg+0xcd/0x170 [ 904.091552][ T254] do_syscall_64+0xc6/0x1e0 [ 904.091552][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.091552][ T254] [ 904.093284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 904.093284][ T254] neigh_parms_alloc+0x1e5/0x510 [ 904.093284][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 904.093284][ T254] ipv6_find_idev+0x102/0x170 [ 904.093284][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 904.093284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 904.093284][ T254] netlink_rcv_skb+0x130/0x360 [ 904.093284][ T254] netlink_unicast+0x449/0x710 [ 904.093284][ T254] netlink_sendmsg+0x723/0xbe0 [ 904.093284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 904.093284][ T254] ___sys_sendmsg+0xee/0x170 [ 904.093284][ T254] __sys_sendmsg+0xcd/0x170 [ 904.093284][ T254] do_syscall_64+0xc6/0x1e0 [ 904.093284][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 904.093284][ T254] [ 914.143958][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 914.144569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.144569][ T254] dst_init+0x84/0x4a0 [ 914.144569][ T254] dst_alloc+0x97/0x150 [ 914.144569][ T254] ip6_dst_alloc+0x23/0x90 [ 914.144569][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 914.144569][ T254] ip6_pol_route+0x56f/0x840 [ 914.144569][ T254] fib6_rule_lookup+0x334/0x630 [ 914.144569][ T254] ip6_route_output_flags+0x259/0x480 [ 914.144569][ T254] inet6_rtm_getroute+0x980/0xf70 [ 914.144569][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 914.144569][ T254] netlink_rcv_skb+0x130/0x360 [ 914.144569][ T254] netlink_unicast+0x449/0x710 [ 914.144569][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.144569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.144569][ T254] ___sys_sendmsg+0xee/0x170 [ 914.144569][ T254] __sys_sendmsg+0xcd/0x170 [ 914.144569][ T254] do_syscall_64+0xc6/0x1e0 [ 914.144569][ T254] [ 914.146790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.146790][ T254] netdev_get_by_index+0x5e/0x80 [ 914.146790][ T254] fib6_nh_init+0x3d8/0x1580 [ 914.146790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 914.146790][ T254] addrconf_f6i_alloc+0x265/0x560 [ 914.146790][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 914.146790][ T254] addrconf_join_anycast+0x1c0/0x220 [ 914.146790][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 914.146790][ T254] addrconf_dad_completed+0x12b/0xe20 [ 914.146790][ T254] addrconf_dad_begin+0x310/0x670 [ 914.146790][ T254] addrconf_dad_work+0x10b/0xab0 [ 914.146790][ T254] process_one_work+0x84d/0x18a0 [ 914.146790][ T254] worker_thread+0x587/0xd30 [ 914.146790][ T254] kthread+0x28a/0x350 [ 914.146790][ T254] ret_from_fork+0x31/0x70 [ 914.146790][ T254] ret_from_fork_asm+0x1a/0x30 [ 914.146790][ T254] [ 914.148966][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.148966][ T254] netdev_get_by_index+0x5e/0x80 [ 914.148966][ T254] fib6_nh_init+0x3d8/0x1580 [ 914.148966][ T254] ip6_route_info_create+0xf18/0x17d0 [ 914.148966][ T254] ip6_route_add+0x1c/0x140 [ 914.148966][ T254] addrconf_prefix_route+0x2a6/0x430 [ 914.148966][ T254] inet6_addr_add+0x4f8/0xa40 [ 914.148966][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 914.148966][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.148966][ T254] netlink_rcv_skb+0x130/0x360 [ 914.148966][ T254] netlink_unicast+0x449/0x710 [ 914.148966][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.148966][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.148966][ T254] ___sys_sendmsg+0xee/0x170 [ 914.148966][ T254] __sys_sendmsg+0xcd/0x170 [ 914.148966][ T254] do_syscall_64+0xc6/0x1e0 [ 914.148966][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.148966][ T254] [ 914.151246][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.151246][ T254] netdev_get_by_index+0x5e/0x80 [ 914.151246][ T254] fib6_nh_init+0x3d8/0x1580 [ 914.151246][ T254] ip6_route_info_create+0xf18/0x17d0 [ 914.151246][ T254] addrconf_f6i_alloc+0x315/0x560 [ 914.151246][ T254] ipv6_add_addr+0x411/0x2000 [ 914.151246][ T254] inet6_addr_add+0x30e/0xa40 [ 914.151246][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 914.151246][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.151246][ T254] netlink_rcv_skb+0x130/0x360 [ 914.151246][ T254] netlink_unicast+0x449/0x710 [ 914.151246][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.151246][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.151246][ T254] ___sys_sendmsg+0xee/0x170 [ 914.151246][ T254] __sys_sendmsg+0xcd/0x170 [ 914.151246][ T254] do_syscall_64+0xc6/0x1e0 [ 914.151246][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.151246][ T254] [ 914.153556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.153556][ T254] netdev_get_by_index+0x5e/0x80 [ 914.153556][ T254] fib6_nh_init+0x3d8/0x1580 [ 914.153556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 914.153556][ T254] ip6_route_add+0x1c/0x140 [ 914.153556][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 914.153556][ T254] addrconf_add_dev+0xe2/0x170 [ 914.153556][ T254] inet6_addr_add+0x12f/0xa40 [ 914.153556][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 914.153556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.153556][ T254] netlink_rcv_skb+0x130/0x360 [ 914.153556][ T254] netlink_unicast+0x449/0x710 [ 914.153556][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.153556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.153556][ T254] ___sys_sendmsg+0xee/0x170 [ 914.153556][ T254] __sys_sendmsg+0xcd/0x170 [ 914.153556][ T254] do_syscall_64+0xc6/0x1e0 [ 914.153556][ T254] [ 914.155782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.155782][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 914.155782][ T254] ipv6_find_idev+0x102/0x170 [ 914.155782][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 914.155782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.155782][ T254] netlink_rcv_skb+0x130/0x360 [ 914.155782][ T254] netlink_unicast+0x449/0x710 [ 914.155782][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.155782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.155782][ T254] ___sys_sendmsg+0xee/0x170 [ 914.155782][ T254] __sys_sendmsg+0xcd/0x170 [ 914.155782][ T254] do_syscall_64+0xc6/0x1e0 [ 914.155782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.155782][ T254] [ 914.157565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 914.157565][ T254] neigh_parms_alloc+0x1e5/0x510 [ 914.157565][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 914.157565][ T254] ipv6_find_idev+0x102/0x170 [ 914.157565][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 914.157565][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 914.157565][ T254] netlink_rcv_skb+0x130/0x360 [ 914.157565][ T254] netlink_unicast+0x449/0x710 [ 914.157565][ T254] netlink_sendmsg+0x723/0xbe0 [ 914.157565][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 914.157565][ T254] ___sys_sendmsg+0xee/0x170 [ 914.157565][ T254] __sys_sendmsg+0xcd/0x170 [ 914.157565][ T254] do_syscall_64+0xc6/0x1e0 [ 914.157565][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 914.157565][ T254] [ 924.383921][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 924.384420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.384420][ T254] dst_init+0x84/0x4a0 [ 924.384420][ T254] dst_alloc+0x97/0x150 [ 924.384420][ T254] ip6_dst_alloc+0x23/0x90 [ 924.384420][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 924.384420][ T254] ip6_pol_route+0x56f/0x840 [ 924.384420][ T254] fib6_rule_lookup+0x334/0x630 [ 924.384420][ T254] ip6_route_output_flags+0x259/0x480 [ 924.384420][ T254] inet6_rtm_getroute+0x980/0xf70 [ 924.384420][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 924.384420][ T254] netlink_rcv_skb+0x130/0x360 [ 924.384420][ T254] netlink_unicast+0x449/0x710 [ 924.384420][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.384420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.384420][ T254] ___sys_sendmsg+0xee/0x170 [ 924.384420][ T254] __sys_sendmsg+0xcd/0x170 [ 924.384420][ T254] do_syscall_64+0xc6/0x1e0 [ 924.384420][ T254] [ 924.386625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.386625][ T254] netdev_get_by_index+0x5e/0x80 [ 924.386625][ T254] fib6_nh_init+0x3d8/0x1580 [ 924.386625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 924.386625][ T254] addrconf_f6i_alloc+0x265/0x560 [ 924.386625][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 924.386625][ T254] addrconf_join_anycast+0x1c0/0x220 [ 924.386625][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 924.386625][ T254] addrconf_dad_completed+0x12b/0xe20 [ 924.386625][ T254] addrconf_dad_begin+0x310/0x670 [ 924.386625][ T254] addrconf_dad_work+0x10b/0xab0 [ 924.386625][ T254] process_one_work+0x84d/0x18a0 [ 924.386625][ T254] worker_thread+0x587/0xd30 [ 924.386625][ T254] kthread+0x28a/0x350 [ 924.386625][ T254] ret_from_fork+0x31/0x70 [ 924.386625][ T254] ret_from_fork_asm+0x1a/0x30 [ 924.386625][ T254] [ 924.388779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.388779][ T254] netdev_get_by_index+0x5e/0x80 [ 924.388779][ T254] fib6_nh_init+0x3d8/0x1580 [ 924.388779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 924.388779][ T254] ip6_route_add+0x1c/0x140 [ 924.388779][ T254] addrconf_prefix_route+0x2a6/0x430 [ 924.388779][ T254] inet6_addr_add+0x4f8/0xa40 [ 924.388779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 924.388779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 924.388779][ T254] netlink_rcv_skb+0x130/0x360 [ 924.388779][ T254] netlink_unicast+0x449/0x710 [ 924.388779][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.388779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.388779][ T254] ___sys_sendmsg+0xee/0x170 [ 924.388779][ T254] __sys_sendmsg+0xcd/0x170 [ 924.388779][ T254] do_syscall_64+0xc6/0x1e0 [ 924.388779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 924.388779][ T254] [ 924.391023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.391023][ T254] netdev_get_by_index+0x5e/0x80 [ 924.391023][ T254] fib6_nh_init+0x3d8/0x1580 [ 924.391023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 924.391023][ T254] addrconf_f6i_alloc+0x315/0x560 [ 924.391023][ T254] ipv6_add_addr+0x411/0x2000 [ 924.391023][ T254] inet6_addr_add+0x30e/0xa40 [ 924.391023][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 924.391023][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 924.391023][ T254] netlink_rcv_skb+0x130/0x360 [ 924.391023][ T254] netlink_unicast+0x449/0x710 [ 924.391023][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.391023][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.391023][ T254] ___sys_sendmsg+0xee/0x170 [ 924.391023][ T254] __sys_sendmsg+0xcd/0x170 [ 924.391023][ T254] do_syscall_64+0xc6/0x1e0 [ 924.391023][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 924.391023][ T254] [ 924.393287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.393287][ T254] netdev_get_by_index+0x5e/0x80 [ 924.393287][ T254] fib6_nh_init+0x3d8/0x1580 [ 924.393287][ T254] ip6_route_info_create+0xf18/0x17d0 [ 924.393287][ T254] ip6_route_add+0x1c/0x140 [ 924.393287][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 924.393287][ T254] addrconf_add_dev+0xe2/0x170 [ 924.393287][ T254] inet6_addr_add+0x12f/0xa40 [ 924.393287][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 924.393287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 924.393287][ T254] netlink_rcv_skb+0x130/0x360 [ 924.393287][ T254] netlink_unicast+0x449/0x710 [ 924.393287][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.393287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.393287][ T254] ___sys_sendmsg+0xee/0x170 [ 924.393287][ T254] __sys_sendmsg+0xcd/0x170 [ 924.393287][ T254] do_syscall_64+0xc6/0x1e0 [ 924.393287][ T254] [ 924.395487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.395487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 924.395487][ T254] ipv6_find_idev+0x102/0x170 [ 924.395487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 924.395487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 924.395487][ T254] netlink_rcv_skb+0x130/0x360 [ 924.395487][ T254] netlink_unicast+0x449/0x710 [ 924.395487][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.395487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.395487][ T254] ___sys_sendmsg+0xee/0x170 [ 924.395487][ T254] __sys_sendmsg+0xcd/0x170 [ 924.395487][ T254] do_syscall_64+0xc6/0x1e0 [ 924.395487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 924.395487][ T254] [ 924.397255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 924.397255][ T254] neigh_parms_alloc+0x1e5/0x510 [ 924.397255][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 924.397255][ T254] ipv6_find_idev+0x102/0x170 [ 924.397255][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 924.397255][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 924.397255][ T254] netlink_rcv_skb+0x130/0x360 [ 924.397255][ T254] netlink_unicast+0x449/0x710 [ 924.397255][ T254] netlink_sendmsg+0x723/0xbe0 [ 924.397255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 924.397255][ T254] ___sys_sendmsg+0xee/0x170 [ 924.397255][ T254] __sys_sendmsg+0xcd/0x170 [ 924.397255][ T254] do_syscall_64+0xc6/0x1e0 [ 924.397255][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 924.397255][ T254] [ 934.527869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 934.528327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.528327][ T254] dst_init+0x84/0x4a0 [ 934.528327][ T254] dst_alloc+0x97/0x150 [ 934.528327][ T254] ip6_dst_alloc+0x23/0x90 [ 934.528327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 934.528327][ T254] ip6_pol_route+0x56f/0x840 [ 934.528327][ T254] fib6_rule_lookup+0x334/0x630 [ 934.528327][ T254] ip6_route_output_flags+0x259/0x480 [ 934.528327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 934.528327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 934.528327][ T254] netlink_rcv_skb+0x130/0x360 [ 934.528327][ T254] netlink_unicast+0x449/0x710 [ 934.528327][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.528327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.528327][ T254] ___sys_sendmsg+0xee/0x170 [ 934.528327][ T254] __sys_sendmsg+0xcd/0x170 [ 934.528327][ T254] do_syscall_64+0xc6/0x1e0 [ 934.528327][ T254] [ 934.530638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.530638][ T254] netdev_get_by_index+0x5e/0x80 [ 934.530638][ T254] fib6_nh_init+0x3d8/0x1580 [ 934.530638][ T254] ip6_route_info_create+0xf18/0x17d0 [ 934.530638][ T254] addrconf_f6i_alloc+0x265/0x560 [ 934.530638][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 934.530638][ T254] addrconf_join_anycast+0x1c0/0x220 [ 934.530638][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 934.530638][ T254] addrconf_dad_completed+0x12b/0xe20 [ 934.530638][ T254] addrconf_dad_begin+0x310/0x670 [ 934.530638][ T254] addrconf_dad_work+0x10b/0xab0 [ 934.530638][ T254] process_one_work+0x84d/0x18a0 [ 934.530638][ T254] worker_thread+0x587/0xd30 [ 934.530638][ T254] kthread+0x28a/0x350 [ 934.530638][ T254] ret_from_fork+0x31/0x70 [ 934.530638][ T254] ret_from_fork_asm+0x1a/0x30 [ 934.530638][ T254] [ 934.532800][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.532800][ T254] netdev_get_by_index+0x5e/0x80 [ 934.532800][ T254] fib6_nh_init+0x3d8/0x1580 [ 934.532800][ T254] ip6_route_info_create+0xf18/0x17d0 [ 934.532800][ T254] ip6_route_add+0x1c/0x140 [ 934.532800][ T254] addrconf_prefix_route+0x2a6/0x430 [ 934.532800][ T254] inet6_addr_add+0x4f8/0xa40 [ 934.532800][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 934.532800][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 934.532800][ T254] netlink_rcv_skb+0x130/0x360 [ 934.532800][ T254] netlink_unicast+0x449/0x710 [ 934.532800][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.532800][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.532800][ T254] ___sys_sendmsg+0xee/0x170 [ 934.532800][ T254] __sys_sendmsg+0xcd/0x170 [ 934.532800][ T254] do_syscall_64+0xc6/0x1e0 [ 934.532800][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 934.532800][ T254] [ 934.535045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.535045][ T254] netdev_get_by_index+0x5e/0x80 [ 934.535045][ T254] fib6_nh_init+0x3d8/0x1580 [ 934.535045][ T254] ip6_route_info_create+0xf18/0x17d0 [ 934.535045][ T254] addrconf_f6i_alloc+0x315/0x560 [ 934.535045][ T254] ipv6_add_addr+0x411/0x2000 [ 934.535045][ T254] inet6_addr_add+0x30e/0xa40 [ 934.535045][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 934.535045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 934.535045][ T254] netlink_rcv_skb+0x130/0x360 [ 934.535045][ T254] netlink_unicast+0x449/0x710 [ 934.535045][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.535045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.535045][ T254] ___sys_sendmsg+0xee/0x170 [ 934.535045][ T254] __sys_sendmsg+0xcd/0x170 [ 934.535045][ T254] do_syscall_64+0xc6/0x1e0 [ 934.535045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 934.535045][ T254] [ 934.537287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.537287][ T254] netdev_get_by_index+0x5e/0x80 [ 934.537287][ T254] fib6_nh_init+0x3d8/0x1580 [ 934.537287][ T254] ip6_route_info_create+0xf18/0x17d0 [ 934.537287][ T254] ip6_route_add+0x1c/0x140 [ 934.537287][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 934.537287][ T254] addrconf_add_dev+0xe2/0x170 [ 934.537287][ T254] inet6_addr_add+0x12f/0xa40 [ 934.537287][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 934.537287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 934.537287][ T254] netlink_rcv_skb+0x130/0x360 [ 934.537287][ T254] netlink_unicast+0x449/0x710 [ 934.537287][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.537287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.537287][ T254] ___sys_sendmsg+0xee/0x170 [ 934.537287][ T254] __sys_sendmsg+0xcd/0x170 [ 934.537287][ T254] do_syscall_64+0xc6/0x1e0 [ 934.537287][ T254] [ 934.539483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.539483][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 934.539483][ T254] ipv6_find_idev+0x102/0x170 [ 934.539483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 934.539483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 934.539483][ T254] netlink_rcv_skb+0x130/0x360 [ 934.539483][ T254] netlink_unicast+0x449/0x710 [ 934.539483][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.539483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.539483][ T254] ___sys_sendmsg+0xee/0x170 [ 934.539483][ T254] __sys_sendmsg+0xcd/0x170 [ 934.539483][ T254] do_syscall_64+0xc6/0x1e0 [ 934.539483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 934.539483][ T254] [ 934.541223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 934.541223][ T254] neigh_parms_alloc+0x1e5/0x510 [ 934.541223][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 934.541223][ T254] ipv6_find_idev+0x102/0x170 [ 934.541223][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 934.541223][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 934.541223][ T254] netlink_rcv_skb+0x130/0x360 [ 934.541223][ T254] netlink_unicast+0x449/0x710 [ 934.541223][ T254] netlink_sendmsg+0x723/0xbe0 [ 934.541223][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 934.541223][ T254] ___sys_sendmsg+0xee/0x170 [ 934.541223][ T254] __sys_sendmsg+0xcd/0x170 [ 934.541223][ T254] do_syscall_64+0xc6/0x1e0 [ 934.541223][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 934.541223][ T254] [ 944.591901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 944.592377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.592377][ T254] dst_init+0x84/0x4a0 [ 944.592377][ T254] dst_alloc+0x97/0x150 [ 944.592377][ T254] ip6_dst_alloc+0x23/0x90 [ 944.592377][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 944.592377][ T254] ip6_pol_route+0x56f/0x840 [ 944.592377][ T254] fib6_rule_lookup+0x334/0x630 [ 944.592377][ T254] ip6_route_output_flags+0x259/0x480 [ 944.592377][ T254] inet6_rtm_getroute+0x980/0xf70 [ 944.592377][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 944.592377][ T254] netlink_rcv_skb+0x130/0x360 [ 944.592377][ T254] netlink_unicast+0x449/0x710 [ 944.592377][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.592377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.592377][ T254] ___sys_sendmsg+0xee/0x170 [ 944.592377][ T254] __sys_sendmsg+0xcd/0x170 [ 944.592377][ T254] do_syscall_64+0xc6/0x1e0 [ 944.592377][ T254] [ 944.594591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.594591][ T254] netdev_get_by_index+0x5e/0x80 [ 944.594591][ T254] fib6_nh_init+0x3d8/0x1580 [ 944.594591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 944.594591][ T254] addrconf_f6i_alloc+0x265/0x560 [ 944.594591][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 944.594591][ T254] addrconf_join_anycast+0x1c0/0x220 [ 944.594591][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 944.594591][ T254] addrconf_dad_completed+0x12b/0xe20 [ 944.594591][ T254] addrconf_dad_begin+0x310/0x670 [ 944.594591][ T254] addrconf_dad_work+0x10b/0xab0 [ 944.594591][ T254] process_one_work+0x84d/0x18a0 [ 944.594591][ T254] worker_thread+0x587/0xd30 [ 944.594591][ T254] kthread+0x28a/0x350 [ 944.594591][ T254] ret_from_fork+0x31/0x70 [ 944.594591][ T254] ret_from_fork_asm+0x1a/0x30 [ 944.594591][ T254] [ 944.596743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.596743][ T254] netdev_get_by_index+0x5e/0x80 [ 944.596743][ T254] fib6_nh_init+0x3d8/0x1580 [ 944.596743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 944.596743][ T254] ip6_route_add+0x1c/0x140 [ 944.596743][ T254] addrconf_prefix_route+0x2a6/0x430 [ 944.596743][ T254] inet6_addr_add+0x4f8/0xa40 [ 944.596743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 944.596743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 944.596743][ T254] netlink_rcv_skb+0x130/0x360 [ 944.596743][ T254] netlink_unicast+0x449/0x710 [ 944.596743][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.596743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.596743][ T254] ___sys_sendmsg+0xee/0x170 [ 944.596743][ T254] __sys_sendmsg+0xcd/0x170 [ 944.596743][ T254] do_syscall_64+0xc6/0x1e0 [ 944.596743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 944.596743][ T254] [ 944.598994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.598994][ T254] netdev_get_by_index+0x5e/0x80 [ 944.598994][ T254] fib6_nh_init+0x3d8/0x1580 [ 944.598994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 944.598994][ T254] addrconf_f6i_alloc+0x315/0x560 [ 944.598994][ T254] ipv6_add_addr+0x411/0x2000 [ 944.598994][ T254] inet6_addr_add+0x30e/0xa40 [ 944.598994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 944.598994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 944.598994][ T254] netlink_rcv_skb+0x130/0x360 [ 944.598994][ T254] netlink_unicast+0x449/0x710 [ 944.598994][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.598994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.598994][ T254] ___sys_sendmsg+0xee/0x170 [ 944.598994][ T254] __sys_sendmsg+0xcd/0x170 [ 944.598994][ T254] do_syscall_64+0xc6/0x1e0 [ 944.598994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 944.598994][ T254] [ 944.601235][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.601235][ T254] netdev_get_by_index+0x5e/0x80 [ 944.601235][ T254] fib6_nh_init+0x3d8/0x1580 [ 944.601235][ T254] ip6_route_info_create+0xf18/0x17d0 [ 944.601235][ T254] ip6_route_add+0x1c/0x140 [ 944.601235][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 944.601235][ T254] addrconf_add_dev+0xe2/0x170 [ 944.601235][ T254] inet6_addr_add+0x12f/0xa40 [ 944.601235][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 944.601235][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 944.601235][ T254] netlink_rcv_skb+0x130/0x360 [ 944.601235][ T254] netlink_unicast+0x449/0x710 [ 944.601235][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.601235][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.601235][ T254] ___sys_sendmsg+0xee/0x170 [ 944.601235][ T254] __sys_sendmsg+0xcd/0x170 [ 944.601235][ T254] do_syscall_64+0xc6/0x1e0 [ 944.601235][ T254] [ 944.603440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.603440][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 944.603440][ T254] ipv6_find_idev+0x102/0x170 [ 944.603440][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 944.603440][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 944.603440][ T254] netlink_rcv_skb+0x130/0x360 [ 944.603440][ T254] netlink_unicast+0x449/0x710 [ 944.603440][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.603440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.603440][ T254] ___sys_sendmsg+0xee/0x170 [ 944.603440][ T254] __sys_sendmsg+0xcd/0x170 [ 944.603440][ T254] do_syscall_64+0xc6/0x1e0 [ 944.603440][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 944.603440][ T254] [ 944.605172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 944.605172][ T254] neigh_parms_alloc+0x1e5/0x510 [ 944.605172][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 944.605172][ T254] ipv6_find_idev+0x102/0x170 [ 944.605172][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 944.605172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 944.605172][ T254] netlink_rcv_skb+0x130/0x360 [ 944.605172][ T254] netlink_unicast+0x449/0x710 [ 944.605172][ T254] netlink_sendmsg+0x723/0xbe0 [ 944.605172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 944.605172][ T254] ___sys_sendmsg+0xee/0x170 [ 944.605172][ T254] __sys_sendmsg+0xcd/0x170 [ 944.605172][ T254] do_syscall_64+0xc6/0x1e0 [ 944.605172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 944.605172][ T254] [ 954.855894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 954.856456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.856456][ T254] dst_init+0x84/0x4a0 [ 954.856456][ T254] dst_alloc+0x97/0x150 [ 954.856456][ T254] ip6_dst_alloc+0x23/0x90 [ 954.856456][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 954.856456][ T254] ip6_pol_route+0x56f/0x840 [ 954.856456][ T254] fib6_rule_lookup+0x334/0x630 [ 954.856456][ T254] ip6_route_output_flags+0x259/0x480 [ 954.856456][ T254] inet6_rtm_getroute+0x980/0xf70 [ 954.856456][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 954.856456][ T254] netlink_rcv_skb+0x130/0x360 [ 954.856456][ T254] netlink_unicast+0x449/0x710 [ 954.856456][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.856456][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.856456][ T254] ___sys_sendmsg+0xee/0x170 [ 954.856456][ T254] __sys_sendmsg+0xcd/0x170 [ 954.856456][ T254] do_syscall_64+0xc6/0x1e0 [ 954.856456][ T254] [ 954.858756][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.858756][ T254] netdev_get_by_index+0x5e/0x80 [ 954.858756][ T254] fib6_nh_init+0x3d8/0x1580 [ 954.858756][ T254] ip6_route_info_create+0xf18/0x17d0 [ 954.858756][ T254] addrconf_f6i_alloc+0x265/0x560 [ 954.858756][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 954.858756][ T254] addrconf_join_anycast+0x1c0/0x220 [ 954.858756][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 954.858756][ T254] addrconf_dad_completed+0x12b/0xe20 [ 954.858756][ T254] addrconf_dad_begin+0x310/0x670 [ 954.858756][ T254] addrconf_dad_work+0x10b/0xab0 [ 954.858756][ T254] process_one_work+0x84d/0x18a0 [ 954.858756][ T254] worker_thread+0x587/0xd30 [ 954.858756][ T254] kthread+0x28a/0x350 [ 954.858756][ T254] ret_from_fork+0x31/0x70 [ 954.858756][ T254] ret_from_fork_asm+0x1a/0x30 [ 954.858756][ T254] [ 954.860923][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.860923][ T254] netdev_get_by_index+0x5e/0x80 [ 954.860923][ T254] fib6_nh_init+0x3d8/0x1580 [ 954.860923][ T254] ip6_route_info_create+0xf18/0x17d0 [ 954.860923][ T254] ip6_route_add+0x1c/0x140 [ 954.860923][ T254] addrconf_prefix_route+0x2a6/0x430 [ 954.860923][ T254] inet6_addr_add+0x4f8/0xa40 [ 954.860923][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 954.860923][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 954.860923][ T254] netlink_rcv_skb+0x130/0x360 [ 954.860923][ T254] netlink_unicast+0x449/0x710 [ 954.860923][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.860923][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.860923][ T254] ___sys_sendmsg+0xee/0x170 [ 954.860923][ T254] __sys_sendmsg+0xcd/0x170 [ 954.860923][ T254] do_syscall_64+0xc6/0x1e0 [ 954.860923][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 954.860923][ T254] [ 954.863175][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.863175][ T254] netdev_get_by_index+0x5e/0x80 [ 954.863175][ T254] fib6_nh_init+0x3d8/0x1580 [ 954.863175][ T254] ip6_route_info_create+0xf18/0x17d0 [ 954.863175][ T254] addrconf_f6i_alloc+0x315/0x560 [ 954.863175][ T254] ipv6_add_addr+0x411/0x2000 [ 954.863175][ T254] inet6_addr_add+0x30e/0xa40 [ 954.863175][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 954.863175][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 954.863175][ T254] netlink_rcv_skb+0x130/0x360 [ 954.863175][ T254] netlink_unicast+0x449/0x710 [ 954.863175][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.863175][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.863175][ T254] ___sys_sendmsg+0xee/0x170 [ 954.863175][ T254] __sys_sendmsg+0xcd/0x170 [ 954.863175][ T254] do_syscall_64+0xc6/0x1e0 [ 954.863175][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 954.863175][ T254] [ 954.865433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.865433][ T254] netdev_get_by_index+0x5e/0x80 [ 954.865433][ T254] fib6_nh_init+0x3d8/0x1580 [ 954.865433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 954.865433][ T254] ip6_route_add+0x1c/0x140 [ 954.865433][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 954.865433][ T254] addrconf_add_dev+0xe2/0x170 [ 954.865433][ T254] inet6_addr_add+0x12f/0xa40 [ 954.865433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 954.865433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 954.865433][ T254] netlink_rcv_skb+0x130/0x360 [ 954.865433][ T254] netlink_unicast+0x449/0x710 [ 954.865433][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.865433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.865433][ T254] ___sys_sendmsg+0xee/0x170 [ 954.865433][ T254] __sys_sendmsg+0xcd/0x170 [ 954.865433][ T254] do_syscall_64+0xc6/0x1e0 [ 954.865433][ T254] [ 954.867636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.867636][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 954.867636][ T254] ipv6_find_idev+0x102/0x170 [ 954.867636][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 954.867636][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 954.867636][ T254] netlink_rcv_skb+0x130/0x360 [ 954.867636][ T254] netlink_unicast+0x449/0x710 [ 954.867636][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.867636][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.867636][ T254] ___sys_sendmsg+0xee/0x170 [ 954.867636][ T254] __sys_sendmsg+0xcd/0x170 [ 954.867636][ T254] do_syscall_64+0xc6/0x1e0 [ 954.867636][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 954.867636][ T254] [ 954.869360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 954.869360][ T254] neigh_parms_alloc+0x1e5/0x510 [ 954.869360][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 954.869360][ T254] ipv6_find_idev+0x102/0x170 [ 954.869360][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 954.869360][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 954.869360][ T254] netlink_rcv_skb+0x130/0x360 [ 954.869360][ T254] netlink_unicast+0x449/0x710 [ 954.869360][ T254] netlink_sendmsg+0x723/0xbe0 [ 954.869360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 954.869360][ T254] ___sys_sendmsg+0xee/0x170 [ 954.869360][ T254] __sys_sendmsg+0xcd/0x170 [ 954.869360][ T254] do_syscall_64+0xc6/0x1e0 [ 954.869360][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 954.869360][ T254] [ 965.119859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 965.120397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.120397][ T254] dst_init+0x84/0x4a0 [ 965.120397][ T254] dst_alloc+0x97/0x150 [ 965.120397][ T254] ip6_dst_alloc+0x23/0x90 [ 965.120397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 965.120397][ T254] ip6_pol_route+0x56f/0x840 [ 965.120397][ T254] fib6_rule_lookup+0x334/0x630 [ 965.120397][ T254] ip6_route_output_flags+0x259/0x480 [ 965.120397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 965.120397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 965.120397][ T254] netlink_rcv_skb+0x130/0x360 [ 965.120397][ T254] netlink_unicast+0x449/0x710 [ 965.120397][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.120397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.120397][ T254] ___sys_sendmsg+0xee/0x170 [ 965.120397][ T254] __sys_sendmsg+0xcd/0x170 [ 965.120397][ T254] do_syscall_64+0xc6/0x1e0 [ 965.120397][ T254] [ 965.122616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.122616][ T254] netdev_get_by_index+0x5e/0x80 [ 965.122616][ T254] fib6_nh_init+0x3d8/0x1580 [ 965.122616][ T254] ip6_route_info_create+0xf18/0x17d0 [ 965.122616][ T254] addrconf_f6i_alloc+0x265/0x560 [ 965.122616][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 965.122616][ T254] addrconf_join_anycast+0x1c0/0x220 [ 965.122616][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 965.122616][ T254] addrconf_dad_completed+0x12b/0xe20 [ 965.122616][ T254] addrconf_dad_begin+0x310/0x670 [ 965.122616][ T254] addrconf_dad_work+0x10b/0xab0 [ 965.122616][ T254] process_one_work+0x84d/0x18a0 [ 965.122616][ T254] worker_thread+0x587/0xd30 [ 965.122616][ T254] kthread+0x28a/0x350 [ 965.122616][ T254] ret_from_fork+0x31/0x70 [ 965.122616][ T254] ret_from_fork_asm+0x1a/0x30 [ 965.122616][ T254] [ 965.124767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.124767][ T254] netdev_get_by_index+0x5e/0x80 [ 965.124767][ T254] fib6_nh_init+0x3d8/0x1580 [ 965.124767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 965.124767][ T254] ip6_route_add+0x1c/0x140 [ 965.124767][ T254] addrconf_prefix_route+0x2a6/0x430 [ 965.124767][ T254] inet6_addr_add+0x4f8/0xa40 [ 965.124767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 965.124767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 965.124767][ T254] netlink_rcv_skb+0x130/0x360 [ 965.124767][ T254] netlink_unicast+0x449/0x710 [ 965.124767][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.124767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.124767][ T254] ___sys_sendmsg+0xee/0x170 [ 965.124767][ T254] __sys_sendmsg+0xcd/0x170 [ 965.124767][ T254] do_syscall_64+0xc6/0x1e0 [ 965.124767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 965.124767][ T254] [ 965.127015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.127015][ T254] netdev_get_by_index+0x5e/0x80 [ 965.127015][ T254] fib6_nh_init+0x3d8/0x1580 [ 965.127015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 965.127015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 965.127015][ T254] ipv6_add_addr+0x411/0x2000 [ 965.127015][ T254] inet6_addr_add+0x30e/0xa40 [ 965.127015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 965.127015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 965.127015][ T254] netlink_rcv_skb+0x130/0x360 [ 965.127015][ T254] netlink_unicast+0x449/0x710 [ 965.127015][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.127015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.127015][ T254] ___sys_sendmsg+0xee/0x170 [ 965.127015][ T254] __sys_sendmsg+0xcd/0x170 [ 965.127015][ T254] do_syscall_64+0xc6/0x1e0 [ 965.127015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 965.127015][ T254] [ 965.129272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.129272][ T254] netdev_get_by_index+0x5e/0x80 [ 965.129272][ T254] fib6_nh_init+0x3d8/0x1580 [ 965.129272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 965.129272][ T254] ip6_route_add+0x1c/0x140 [ 965.129272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 965.129272][ T254] addrconf_add_dev+0xe2/0x170 [ 965.129272][ T254] inet6_addr_add+0x12f/0xa40 [ 965.129272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 965.129272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 965.129272][ T254] netlink_rcv_skb+0x130/0x360 [ 965.129272][ T254] netlink_unicast+0x449/0x710 [ 965.129272][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.129272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.129272][ T254] ___sys_sendmsg+0xee/0x170 [ 965.129272][ T254] __sys_sendmsg+0xcd/0x170 [ 965.129272][ T254] do_syscall_64+0xc6/0x1e0 [ 965.129272][ T254] [ 965.131471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.131471][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 965.131471][ T254] ipv6_find_idev+0x102/0x170 [ 965.131471][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 965.131471][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 965.131471][ T254] netlink_rcv_skb+0x130/0x360 [ 965.131471][ T254] netlink_unicast+0x449/0x710 [ 965.131471][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.131471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.131471][ T254] ___sys_sendmsg+0xee/0x170 [ 965.131471][ T254] __sys_sendmsg+0xcd/0x170 [ 965.131471][ T254] do_syscall_64+0xc6/0x1e0 [ 965.131471][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 965.131471][ T254] [ 965.133209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 965.133209][ T254] neigh_parms_alloc+0x1e5/0x510 [ 965.133209][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 965.133209][ T254] ipv6_find_idev+0x102/0x170 [ 965.133209][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 965.133209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 965.133209][ T254] netlink_rcv_skb+0x130/0x360 [ 965.133209][ T254] netlink_unicast+0x449/0x710 [ 965.133209][ T254] netlink_sendmsg+0x723/0xbe0 [ 965.133209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 965.133209][ T254] ___sys_sendmsg+0xee/0x170 [ 965.133209][ T254] __sys_sendmsg+0xcd/0x170 [ 965.133209][ T254] do_syscall_64+0xc6/0x1e0 [ 965.133209][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 965.133209][ T254] [ 975.191880][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 975.192419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.192419][ T254] dst_init+0x84/0x4a0 [ 975.192419][ T254] dst_alloc+0x97/0x150 [ 975.192419][ T254] ip6_dst_alloc+0x23/0x90 [ 975.192419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 975.192419][ T254] ip6_pol_route+0x56f/0x840 [ 975.192419][ T254] fib6_rule_lookup+0x334/0x630 [ 975.192419][ T254] ip6_route_output_flags+0x259/0x480 [ 975.192419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 975.192419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 975.192419][ T254] netlink_rcv_skb+0x130/0x360 [ 975.192419][ T254] netlink_unicast+0x449/0x710 [ 975.192419][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.192419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.192419][ T254] ___sys_sendmsg+0xee/0x170 [ 975.192419][ T254] __sys_sendmsg+0xcd/0x170 [ 975.192419][ T254] do_syscall_64+0xc6/0x1e0 [ 975.192419][ T254] [ 975.194631][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.194631][ T254] netdev_get_by_index+0x5e/0x80 [ 975.194631][ T254] fib6_nh_init+0x3d8/0x1580 [ 975.194631][ T254] ip6_route_info_create+0xf18/0x17d0 [ 975.194631][ T254] addrconf_f6i_alloc+0x265/0x560 [ 975.194631][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 975.194631][ T254] addrconf_join_anycast+0x1c0/0x220 [ 975.194631][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 975.194631][ T254] addrconf_dad_completed+0x12b/0xe20 [ 975.194631][ T254] addrconf_dad_begin+0x310/0x670 [ 975.194631][ T254] addrconf_dad_work+0x10b/0xab0 [ 975.194631][ T254] process_one_work+0x84d/0x18a0 [ 975.194631][ T254] worker_thread+0x587/0xd30 [ 975.194631][ T254] kthread+0x28a/0x350 [ 975.194631][ T254] ret_from_fork+0x31/0x70 [ 975.194631][ T254] ret_from_fork_asm+0x1a/0x30 [ 975.194631][ T254] [ 975.196771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.196771][ T254] netdev_get_by_index+0x5e/0x80 [ 975.196771][ T254] fib6_nh_init+0x3d8/0x1580 [ 975.196771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 975.196771][ T254] ip6_route_add+0x1c/0x140 [ 975.196771][ T254] addrconf_prefix_route+0x2a6/0x430 [ 975.196771][ T254] inet6_addr_add+0x4f8/0xa40 [ 975.196771][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 975.196771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 975.196771][ T254] netlink_rcv_skb+0x130/0x360 [ 975.196771][ T254] netlink_unicast+0x449/0x710 [ 975.196771][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.196771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.196771][ T254] ___sys_sendmsg+0xee/0x170 [ 975.196771][ T254] __sys_sendmsg+0xcd/0x170 [ 975.196771][ T254] do_syscall_64+0xc6/0x1e0 [ 975.196771][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 975.196771][ T254] [ 975.199063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.199063][ T254] netdev_get_by_index+0x5e/0x80 [ 975.199063][ T254] fib6_nh_init+0x3d8/0x1580 [ 975.199063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 975.199063][ T254] addrconf_f6i_alloc+0x315/0x560 [ 975.199063][ T254] ipv6_add_addr+0x411/0x2000 [ 975.199063][ T254] inet6_addr_add+0x30e/0xa40 [ 975.199063][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 975.199063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 975.199063][ T254] netlink_rcv_skb+0x130/0x360 [ 975.199063][ T254] netlink_unicast+0x449/0x710 [ 975.199063][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.199063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.199063][ T254] ___sys_sendmsg+0xee/0x170 [ 975.199063][ T254] __sys_sendmsg+0xcd/0x170 [ 975.199063][ T254] do_syscall_64+0xc6/0x1e0 [ 975.199063][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 975.199063][ T254] [ 975.201300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.201300][ T254] netdev_get_by_index+0x5e/0x80 [ 975.201300][ T254] fib6_nh_init+0x3d8/0x1580 [ 975.201300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 975.201300][ T254] ip6_route_add+0x1c/0x140 [ 975.201300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 975.201300][ T254] addrconf_add_dev+0xe2/0x170 [ 975.201300][ T254] inet6_addr_add+0x12f/0xa40 [ 975.201300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 975.201300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 975.201300][ T254] netlink_rcv_skb+0x130/0x360 [ 975.201300][ T254] netlink_unicast+0x449/0x710 [ 975.201300][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.201300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.201300][ T254] ___sys_sendmsg+0xee/0x170 [ 975.201300][ T254] __sys_sendmsg+0xcd/0x170 [ 975.201300][ T254] do_syscall_64+0xc6/0x1e0 [ 975.201300][ T254] [ 975.203509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.203509][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 975.203509][ T254] ipv6_find_idev+0x102/0x170 [ 975.203509][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 975.203509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 975.203509][ T254] netlink_rcv_skb+0x130/0x360 [ 975.203509][ T254] netlink_unicast+0x449/0x710 [ 975.203509][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.203509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.203509][ T254] ___sys_sendmsg+0xee/0x170 [ 975.203509][ T254] __sys_sendmsg+0xcd/0x170 [ 975.203509][ T254] do_syscall_64+0xc6/0x1e0 [ 975.203509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 975.203509][ T254] [ 975.205238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 975.205238][ T254] neigh_parms_alloc+0x1e5/0x510 [ 975.205238][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 975.205238][ T254] ipv6_find_idev+0x102/0x170 [ 975.205238][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 975.205238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 975.205238][ T254] netlink_rcv_skb+0x130/0x360 [ 975.205238][ T254] netlink_unicast+0x449/0x710 [ 975.205238][ T254] netlink_sendmsg+0x723/0xbe0 [ 975.205238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 975.205238][ T254] ___sys_sendmsg+0xee/0x170 [ 975.205238][ T254] __sys_sendmsg+0xcd/0x170 [ 975.205238][ T254] do_syscall_64+0xc6/0x1e0 [ 975.205238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 975.205238][ T254] [ 985.447887][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 985.448460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.448460][ T254] dst_init+0x84/0x4a0 [ 985.448460][ T254] dst_alloc+0x97/0x150 [ 985.448460][ T254] ip6_dst_alloc+0x23/0x90 [ 985.448460][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 985.448460][ T254] ip6_pol_route+0x56f/0x840 [ 985.448460][ T254] fib6_rule_lookup+0x334/0x630 [ 985.448460][ T254] ip6_route_output_flags+0x259/0x480 [ 985.448460][ T254] inet6_rtm_getroute+0x980/0xf70 [ 985.448460][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 985.448460][ T254] netlink_rcv_skb+0x130/0x360 [ 985.448460][ T254] netlink_unicast+0x449/0x710 [ 985.448460][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.448460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.448460][ T254] ___sys_sendmsg+0xee/0x170 [ 985.448460][ T254] __sys_sendmsg+0xcd/0x170 [ 985.448460][ T254] do_syscall_64+0xc6/0x1e0 [ 985.448460][ T254] [ 985.450698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.450698][ T254] netdev_get_by_index+0x5e/0x80 [ 985.450698][ T254] fib6_nh_init+0x3d8/0x1580 [ 985.450698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 985.450698][ T254] addrconf_f6i_alloc+0x265/0x560 [ 985.450698][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 985.450698][ T254] addrconf_join_anycast+0x1c0/0x220 [ 985.450698][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 985.450698][ T254] addrconf_dad_completed+0x12b/0xe20 [ 985.450698][ T254] addrconf_dad_begin+0x310/0x670 [ 985.450698][ T254] addrconf_dad_work+0x10b/0xab0 [ 985.450698][ T254] process_one_work+0x84d/0x18a0 [ 985.450698][ T254] worker_thread+0x587/0xd30 [ 985.450698][ T254] kthread+0x28a/0x350 [ 985.450698][ T254] ret_from_fork+0x31/0x70 [ 985.450698][ T254] ret_from_fork_asm+0x1a/0x30 [ 985.450698][ T254] [ 985.452896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.452896][ T254] netdev_get_by_index+0x5e/0x80 [ 985.452896][ T254] fib6_nh_init+0x3d8/0x1580 [ 985.452896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 985.452896][ T254] ip6_route_add+0x1c/0x140 [ 985.452896][ T254] addrconf_prefix_route+0x2a6/0x430 [ 985.452896][ T254] inet6_addr_add+0x4f8/0xa40 [ 985.452896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 985.452896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 985.452896][ T254] netlink_rcv_skb+0x130/0x360 [ 985.452896][ T254] netlink_unicast+0x449/0x710 [ 985.452896][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.452896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.452896][ T254] ___sys_sendmsg+0xee/0x170 [ 985.452896][ T254] __sys_sendmsg+0xcd/0x170 [ 985.452896][ T254] do_syscall_64+0xc6/0x1e0 [ 985.452896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 985.452896][ T254] [ 985.455176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.455176][ T254] netdev_get_by_index+0x5e/0x80 [ 985.455176][ T254] fib6_nh_init+0x3d8/0x1580 [ 985.455176][ T254] ip6_route_info_create+0xf18/0x17d0 [ 985.455176][ T254] addrconf_f6i_alloc+0x315/0x560 [ 985.455176][ T254] ipv6_add_addr+0x411/0x2000 [ 985.455176][ T254] inet6_addr_add+0x30e/0xa40 [ 985.455176][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 985.455176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 985.455176][ T254] netlink_rcv_skb+0x130/0x360 [ 985.455176][ T254] netlink_unicast+0x449/0x710 [ 985.455176][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.455176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.455176][ T254] ___sys_sendmsg+0xee/0x170 [ 985.455176][ T254] __sys_sendmsg+0xcd/0x170 [ 985.455176][ T254] do_syscall_64+0xc6/0x1e0 [ 985.455176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 985.455176][ T254] [ 985.457448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.457448][ T254] netdev_get_by_index+0x5e/0x80 [ 985.457448][ T254] fib6_nh_init+0x3d8/0x1580 [ 985.457448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 985.457448][ T254] ip6_route_add+0x1c/0x140 [ 985.457448][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 985.457448][ T254] addrconf_add_dev+0xe2/0x170 [ 985.457448][ T254] inet6_addr_add+0x12f/0xa40 [ 985.457448][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 985.457448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 985.457448][ T254] netlink_rcv_skb+0x130/0x360 [ 985.457448][ T254] netlink_unicast+0x449/0x710 [ 985.457448][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.457448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.457448][ T254] ___sys_sendmsg+0xee/0x170 [ 985.457448][ T254] __sys_sendmsg+0xcd/0x170 [ 985.457448][ T254] do_syscall_64+0xc6/0x1e0 [ 985.457448][ T254] [ 985.459673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.459673][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 985.459673][ T254] ipv6_find_idev+0x102/0x170 [ 985.459673][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 985.459673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 985.459673][ T254] netlink_rcv_skb+0x130/0x360 [ 985.459673][ T254] netlink_unicast+0x449/0x710 [ 985.459673][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.459673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.459673][ T254] ___sys_sendmsg+0xee/0x170 [ 985.459673][ T254] __sys_sendmsg+0xcd/0x170 [ 985.459673][ T254] do_syscall_64+0xc6/0x1e0 [ 985.459673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 985.459673][ T254] [ 985.461424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 985.461424][ T254] neigh_parms_alloc+0x1e5/0x510 [ 985.461424][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 985.461424][ T254] ipv6_find_idev+0x102/0x170 [ 985.461424][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 985.461424][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 985.461424][ T254] netlink_rcv_skb+0x130/0x360 [ 985.461424][ T254] netlink_unicast+0x449/0x710 [ 985.461424][ T254] netlink_sendmsg+0x723/0xbe0 [ 985.461424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 985.461424][ T254] ___sys_sendmsg+0xee/0x170 [ 985.461424][ T254] __sys_sendmsg+0xcd/0x170 [ 985.461424][ T254] do_syscall_64+0xc6/0x1e0 [ 985.461424][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 985.461424][ T254] [ 995.599883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 995.600433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.600433][ T254] dst_init+0x84/0x4a0 [ 995.600433][ T254] dst_alloc+0x97/0x150 [ 995.600433][ T254] ip6_dst_alloc+0x23/0x90 [ 995.600433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 995.600433][ T254] ip6_pol_route+0x56f/0x840 [ 995.600433][ T254] fib6_rule_lookup+0x334/0x630 [ 995.600433][ T254] ip6_route_output_flags+0x259/0x480 [ 995.600433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 995.600433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 995.600433][ T254] netlink_rcv_skb+0x130/0x360 [ 995.600433][ T254] netlink_unicast+0x449/0x710 [ 995.600433][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.600433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.600433][ T254] ___sys_sendmsg+0xee/0x170 [ 995.600433][ T254] __sys_sendmsg+0xcd/0x170 [ 995.600433][ T254] do_syscall_64+0xc6/0x1e0 [ 995.600433][ T254] [ 995.602708][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.602708][ T254] netdev_get_by_index+0x5e/0x80 [ 995.602708][ T254] fib6_nh_init+0x3d8/0x1580 [ 995.602708][ T254] ip6_route_info_create+0xf18/0x17d0 [ 995.602708][ T254] addrconf_f6i_alloc+0x265/0x560 [ 995.602708][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 995.602708][ T254] addrconf_join_anycast+0x1c0/0x220 [ 995.602708][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 995.602708][ T254] addrconf_dad_completed+0x12b/0xe20 [ 995.602708][ T254] addrconf_dad_begin+0x310/0x670 [ 995.602708][ T254] addrconf_dad_work+0x10b/0xab0 [ 995.602708][ T254] process_one_work+0x84d/0x18a0 [ 995.602708][ T254] worker_thread+0x587/0xd30 [ 995.602708][ T254] kthread+0x28a/0x350 [ 995.602708][ T254] ret_from_fork+0x31/0x70 [ 995.602708][ T254] ret_from_fork_asm+0x1a/0x30 [ 995.602708][ T254] [ 995.604904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.604904][ T254] netdev_get_by_index+0x5e/0x80 [ 995.604904][ T254] fib6_nh_init+0x3d8/0x1580 [ 995.604904][ T254] ip6_route_info_create+0xf18/0x17d0 [ 995.604904][ T254] ip6_route_add+0x1c/0x140 [ 995.604904][ T254] addrconf_prefix_route+0x2a6/0x430 [ 995.604904][ T254] inet6_addr_add+0x4f8/0xa40 [ 995.604904][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 995.604904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 995.604904][ T254] netlink_rcv_skb+0x130/0x360 [ 995.604904][ T254] netlink_unicast+0x449/0x710 [ 995.604904][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.604904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.604904][ T254] ___sys_sendmsg+0xee/0x170 [ 995.604904][ T254] __sys_sendmsg+0xcd/0x170 [ 995.604904][ T254] do_syscall_64+0xc6/0x1e0 [ 995.604904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 995.604904][ T254] [ 995.607167][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.607167][ T254] netdev_get_by_index+0x5e/0x80 [ 995.607167][ T254] fib6_nh_init+0x3d8/0x1580 [ 995.607167][ T254] ip6_route_info_create+0xf18/0x17d0 [ 995.607167][ T254] addrconf_f6i_alloc+0x315/0x560 [ 995.607167][ T254] ipv6_add_addr+0x411/0x2000 [ 995.607167][ T254] inet6_addr_add+0x30e/0xa40 [ 995.607167][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 995.607167][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 995.607167][ T254] netlink_rcv_skb+0x130/0x360 [ 995.607167][ T254] netlink_unicast+0x449/0x710 [ 995.607167][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.607167][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.607167][ T254] ___sys_sendmsg+0xee/0x170 [ 995.607167][ T254] __sys_sendmsg+0xcd/0x170 [ 995.607167][ T254] do_syscall_64+0xc6/0x1e0 [ 995.607167][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 995.607167][ T254] [ 995.609567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.609567][ T254] netdev_get_by_index+0x5e/0x80 [ 995.609567][ T254] fib6_nh_init+0x3d8/0x1580 [ 995.609567][ T254] ip6_route_info_create+0xf18/0x17d0 [ 995.609567][ T254] ip6_route_add+0x1c/0x140 [ 995.609567][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 995.609567][ T254] addrconf_add_dev+0xe2/0x170 [ 995.609567][ T254] inet6_addr_add+0x12f/0xa40 [ 995.609567][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 995.609567][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 995.609567][ T254] netlink_rcv_skb+0x130/0x360 [ 995.609567][ T254] netlink_unicast+0x449/0x710 [ 995.609567][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.609567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.609567][ T254] ___sys_sendmsg+0xee/0x170 [ 995.609567][ T254] __sys_sendmsg+0xcd/0x170 [ 995.609567][ T254] do_syscall_64+0xc6/0x1e0 [ 995.609567][ T254] [ 995.611791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.611791][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 995.611791][ T254] ipv6_find_idev+0x102/0x170 [ 995.611791][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 995.611791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 995.611791][ T254] netlink_rcv_skb+0x130/0x360 [ 995.611791][ T254] netlink_unicast+0x449/0x710 [ 995.611791][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.611791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.611791][ T254] ___sys_sendmsg+0xee/0x170 [ 995.611791][ T254] __sys_sendmsg+0xcd/0x170 [ 995.611791][ T254] do_syscall_64+0xc6/0x1e0 [ 995.611791][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 995.611791][ T254] [ 995.613542][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 995.613542][ T254] neigh_parms_alloc+0x1e5/0x510 [ 995.613542][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 995.613542][ T254] ipv6_find_idev+0x102/0x170 [ 995.613542][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 995.613542][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 995.613542][ T254] netlink_rcv_skb+0x130/0x360 [ 995.613542][ T254] netlink_unicast+0x449/0x710 [ 995.613542][ T254] netlink_sendmsg+0x723/0xbe0 [ 995.613542][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 995.613542][ T254] ___sys_sendmsg+0xee/0x170 [ 995.613542][ T254] __sys_sendmsg+0xcd/0x170 [ 995.613542][ T254] do_syscall_64+0xc6/0x1e0 [ 995.613542][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 995.613542][ T254] [ 1005.855846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1005.856418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.856418][ T254] dst_init+0x84/0x4a0 [ 1005.856418][ T254] dst_alloc+0x97/0x150 [ 1005.856418][ T254] ip6_dst_alloc+0x23/0x90 [ 1005.856418][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1005.856418][ T254] ip6_pol_route+0x56f/0x840 [ 1005.856418][ T254] fib6_rule_lookup+0x334/0x630 [ 1005.856418][ T254] ip6_route_output_flags+0x259/0x480 [ 1005.856418][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1005.856418][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1005.856418][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.856418][ T254] netlink_unicast+0x449/0x710 [ 1005.856418][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.856418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.856418][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.856418][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.856418][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.856418][ T254] [ 1005.858662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.858662][ T254] netdev_get_by_index+0x5e/0x80 [ 1005.858662][ T254] fib6_nh_init+0x3d8/0x1580 [ 1005.858662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1005.858662][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1005.858662][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1005.858662][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1005.858662][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1005.858662][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1005.858662][ T254] addrconf_dad_begin+0x310/0x670 [ 1005.858662][ T254] addrconf_dad_work+0x10b/0xab0 [ 1005.858662][ T254] process_one_work+0x84d/0x18a0 [ 1005.858662][ T254] worker_thread+0x587/0xd30 [ 1005.858662][ T254] kthread+0x28a/0x350 [ 1005.858662][ T254] ret_from_fork+0x31/0x70 [ 1005.858662][ T254] ret_from_fork_asm+0x1a/0x30 [ 1005.858662][ T254] [ 1005.860841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.860841][ T254] netdev_get_by_index+0x5e/0x80 [ 1005.860841][ T254] fib6_nh_init+0x3d8/0x1580 [ 1005.860841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1005.860841][ T254] ip6_route_add+0x1c/0x140 [ 1005.860841][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1005.860841][ T254] inet6_addr_add+0x4f8/0xa40 [ 1005.860841][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1005.860841][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1005.860841][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.860841][ T254] netlink_unicast+0x449/0x710 [ 1005.860841][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.860841][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.860841][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.860841][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.860841][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.860841][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1005.860841][ T254] [ 1005.863118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.863118][ T254] netdev_get_by_index+0x5e/0x80 [ 1005.863118][ T254] fib6_nh_init+0x3d8/0x1580 [ 1005.863118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1005.863118][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1005.863118][ T254] ipv6_add_addr+0x411/0x2000 [ 1005.863118][ T254] inet6_addr_add+0x30e/0xa40 [ 1005.863118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1005.863118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1005.863118][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.863118][ T254] netlink_unicast+0x449/0x710 [ 1005.863118][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.863118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.863118][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.863118][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.863118][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.863118][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1005.863118][ T254] [ 1005.865391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.865391][ T254] netdev_get_by_index+0x5e/0x80 [ 1005.865391][ T254] fib6_nh_init+0x3d8/0x1580 [ 1005.865391][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1005.865391][ T254] ip6_route_add+0x1c/0x140 [ 1005.865391][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1005.865391][ T254] addrconf_add_dev+0xe2/0x170 [ 1005.865391][ T254] inet6_addr_add+0x12f/0xa40 [ 1005.865391][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1005.865391][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1005.865391][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.865391][ T254] netlink_unicast+0x449/0x710 [ 1005.865391][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.865391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.865391][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.865391][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.865391][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.865391][ T254] [ 1005.867634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.867634][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1005.867634][ T254] ipv6_find_idev+0x102/0x170 [ 1005.867634][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1005.867634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1005.867634][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.867634][ T254] netlink_unicast+0x449/0x710 [ 1005.867634][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.867634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.867634][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.867634][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.867634][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.867634][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1005.867634][ T254] [ 1005.869772][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1005.869772][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1005.869772][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1005.869772][ T254] ipv6_find_idev+0x102/0x170 [ 1005.869772][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1005.869772][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1005.869772][ T254] netlink_rcv_skb+0x130/0x360 [ 1005.869772][ T254] netlink_unicast+0x449/0x710 [ 1005.869772][ T254] netlink_sendmsg+0x723/0xbe0 [ 1005.869772][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1005.869772][ T254] ___sys_sendmsg+0xee/0x170 [ 1005.869772][ T254] __sys_sendmsg+0xcd/0x170 [ 1005.869772][ T254] do_syscall_64+0xc6/0x1e0 [ 1005.869772][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1005.869772][ T254] [ 1016.119850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1016.120412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.120412][ T254] dst_init+0x84/0x4a0 [ 1016.120412][ T254] dst_alloc+0x97/0x150 [ 1016.120412][ T254] ip6_dst_alloc+0x23/0x90 [ 1016.120412][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1016.120412][ T254] ip6_pol_route+0x56f/0x840 [ 1016.120412][ T254] fib6_rule_lookup+0x334/0x630 [ 1016.120412][ T254] ip6_route_output_flags+0x259/0x480 [ 1016.120412][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1016.120412][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1016.120412][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.120412][ T254] netlink_unicast+0x449/0x710 [ 1016.120412][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.120412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.120412][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.120412][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.120412][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.120412][ T254] [ 1016.122651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.122651][ T254] netdev_get_by_index+0x5e/0x80 [ 1016.122651][ T254] fib6_nh_init+0x3d8/0x1580 [ 1016.122651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1016.122651][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1016.122651][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1016.122651][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1016.122651][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1016.122651][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1016.122651][ T254] addrconf_dad_begin+0x310/0x670 [ 1016.122651][ T254] addrconf_dad_work+0x10b/0xab0 [ 1016.122651][ T254] process_one_work+0x84d/0x18a0 [ 1016.122651][ T254] worker_thread+0x587/0xd30 [ 1016.122651][ T254] kthread+0x28a/0x350 [ 1016.122651][ T254] ret_from_fork+0x31/0x70 [ 1016.122651][ T254] ret_from_fork_asm+0x1a/0x30 [ 1016.122651][ T254] [ 1016.124934][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.124934][ T254] netdev_get_by_index+0x5e/0x80 [ 1016.124934][ T254] fib6_nh_init+0x3d8/0x1580 [ 1016.124934][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1016.124934][ T254] ip6_route_add+0x1c/0x140 [ 1016.124934][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1016.124934][ T254] inet6_addr_add+0x4f8/0xa40 [ 1016.124934][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1016.124934][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1016.124934][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.124934][ T254] netlink_unicast+0x449/0x710 [ 1016.124934][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.124934][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.124934][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.124934][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.124934][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.124934][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1016.124934][ T254] [ 1016.127226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.127226][ T254] netdev_get_by_index+0x5e/0x80 [ 1016.127226][ T254] fib6_nh_init+0x3d8/0x1580 [ 1016.127226][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1016.127226][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1016.127226][ T254] ipv6_add_addr+0x411/0x2000 [ 1016.127226][ T254] inet6_addr_add+0x30e/0xa40 [ 1016.127226][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1016.127226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1016.127226][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.127226][ T254] netlink_unicast+0x449/0x710 [ 1016.127226][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.127226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.127226][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.127226][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.127226][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.127226][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1016.127226][ T254] [ 1016.129501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.129501][ T254] netdev_get_by_index+0x5e/0x80 [ 1016.129501][ T254] fib6_nh_init+0x3d8/0x1580 [ 1016.129501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1016.129501][ T254] ip6_route_add+0x1c/0x140 [ 1016.129501][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1016.129501][ T254] addrconf_add_dev+0xe2/0x170 [ 1016.129501][ T254] inet6_addr_add+0x12f/0xa40 [ 1016.129501][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1016.129501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1016.129501][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.129501][ T254] netlink_unicast+0x449/0x710 [ 1016.129501][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.129501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.129501][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.129501][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.129501][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.129501][ T254] [ 1016.131735][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.131735][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1016.131735][ T254] ipv6_find_idev+0x102/0x170 [ 1016.131735][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1016.131735][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1016.131735][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.131735][ T254] netlink_unicast+0x449/0x710 [ 1016.131735][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.131735][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.131735][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.131735][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.131735][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.131735][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1016.131735][ T254] [ 1016.133490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1016.133490][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1016.133490][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1016.133490][ T254] ipv6_find_idev+0x102/0x170 [ 1016.133490][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1016.133490][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1016.133490][ T254] netlink_rcv_skb+0x130/0x360 [ 1016.133490][ T254] netlink_unicast+0x449/0x710 [ 1016.133490][ T254] netlink_sendmsg+0x723/0xbe0 [ 1016.133490][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1016.133490][ T254] ___sys_sendmsg+0xee/0x170 [ 1016.133490][ T254] __sys_sendmsg+0xcd/0x170 [ 1016.133490][ T254] do_syscall_64+0xc6/0x1e0 [ 1016.133490][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1016.133490][ T254] [ 1026.375958][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1026.376512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.376512][ T254] dst_init+0x84/0x4a0 [ 1026.376512][ T254] dst_alloc+0x97/0x150 [ 1026.376512][ T254] ip6_dst_alloc+0x23/0x90 [ 1026.376512][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1026.376512][ T254] ip6_pol_route+0x56f/0x840 [ 1026.376512][ T254] fib6_rule_lookup+0x334/0x630 [ 1026.376512][ T254] ip6_route_output_flags+0x259/0x480 [ 1026.376512][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1026.376512][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1026.376512][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.376512][ T254] netlink_unicast+0x449/0x710 [ 1026.376512][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.376512][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.376512][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.376512][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.376512][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.376512][ T254] [ 1026.378747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.378747][ T254] netdev_get_by_index+0x5e/0x80 [ 1026.378747][ T254] fib6_nh_init+0x3d8/0x1580 [ 1026.378747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1026.378747][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1026.378747][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1026.378747][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1026.378747][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1026.378747][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1026.378747][ T254] addrconf_dad_begin+0x310/0x670 [ 1026.378747][ T254] addrconf_dad_work+0x10b/0xab0 [ 1026.378747][ T254] process_one_work+0x84d/0x18a0 [ 1026.378747][ T254] worker_thread+0x587/0xd30 [ 1026.378747][ T254] kthread+0x28a/0x350 [ 1026.378747][ T254] ret_from_fork+0x31/0x70 [ 1026.378747][ T254] ret_from_fork_asm+0x1a/0x30 [ 1026.378747][ T254] [ 1026.380956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.380956][ T254] netdev_get_by_index+0x5e/0x80 [ 1026.380956][ T254] fib6_nh_init+0x3d8/0x1580 [ 1026.380956][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1026.380956][ T254] ip6_route_add+0x1c/0x140 [ 1026.380956][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1026.380956][ T254] inet6_addr_add+0x4f8/0xa40 [ 1026.380956][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1026.380956][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1026.380956][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.380956][ T254] netlink_unicast+0x449/0x710 [ 1026.380956][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.380956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.380956][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.380956][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.380956][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.380956][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1026.380956][ T254] [ 1026.383273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.383273][ T254] netdev_get_by_index+0x5e/0x80 [ 1026.383273][ T254] fib6_nh_init+0x3d8/0x1580 [ 1026.383273][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1026.383273][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1026.383273][ T254] ipv6_add_addr+0x411/0x2000 [ 1026.383273][ T254] inet6_addr_add+0x30e/0xa40 [ 1026.383273][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1026.383273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1026.383273][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.383273][ T254] netlink_unicast+0x449/0x710 [ 1026.383273][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.383273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.383273][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.383273][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.383273][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.383273][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1026.383273][ T254] [ 1026.385541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.385541][ T254] netdev_get_by_index+0x5e/0x80 [ 1026.385541][ T254] fib6_nh_init+0x3d8/0x1580 [ 1026.385541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1026.385541][ T254] ip6_route_add+0x1c/0x140 [ 1026.385541][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1026.385541][ T254] addrconf_add_dev+0xe2/0x170 [ 1026.385541][ T254] inet6_addr_add+0x12f/0xa40 [ 1026.385541][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1026.385541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1026.385541][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.385541][ T254] netlink_unicast+0x449/0x710 [ 1026.385541][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.385541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.385541][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.385541][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.385541][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.385541][ T254] [ 1026.387768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.387768][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1026.387768][ T254] ipv6_find_idev+0x102/0x170 [ 1026.387768][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1026.387768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1026.387768][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.387768][ T254] netlink_unicast+0x449/0x710 [ 1026.387768][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.387768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.387768][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.387768][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.387768][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.387768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1026.387768][ T254] [ 1026.389513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1026.389513][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1026.389513][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1026.389513][ T254] ipv6_find_idev+0x102/0x170 [ 1026.389513][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1026.389513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1026.389513][ T254] netlink_rcv_skb+0x130/0x360 [ 1026.389513][ T254] netlink_unicast+0x449/0x710 [ 1026.389513][ T254] netlink_sendmsg+0x723/0xbe0 [ 1026.389513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1026.389513][ T254] ___sys_sendmsg+0xee/0x170 [ 1026.389513][ T254] __sys_sendmsg+0xcd/0x170 [ 1026.389513][ T254] do_syscall_64+0xc6/0x1e0 [ 1026.389513][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1026.389513][ T254] [ 1036.631894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1036.632434][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.632434][ T254] dst_init+0x84/0x4a0 [ 1036.632434][ T254] dst_alloc+0x97/0x150 [ 1036.632434][ T254] ip6_dst_alloc+0x23/0x90 [ 1036.632434][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1036.632434][ T254] ip6_pol_route+0x56f/0x840 [ 1036.632434][ T254] fib6_rule_lookup+0x334/0x630 [ 1036.632434][ T254] ip6_route_output_flags+0x259/0x480 [ 1036.632434][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1036.632434][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1036.632434][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.632434][ T254] netlink_unicast+0x449/0x710 [ 1036.632434][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.632434][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.632434][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.632434][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.632434][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.632434][ T254] [ 1036.634669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.634669][ T254] netdev_get_by_index+0x5e/0x80 [ 1036.634669][ T254] fib6_nh_init+0x3d8/0x1580 [ 1036.634669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1036.634669][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1036.634669][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1036.634669][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1036.634669][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1036.634669][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1036.634669][ T254] addrconf_dad_begin+0x310/0x670 [ 1036.634669][ T254] addrconf_dad_work+0x10b/0xab0 [ 1036.634669][ T254] process_one_work+0x84d/0x18a0 [ 1036.634669][ T254] worker_thread+0x587/0xd30 [ 1036.634669][ T254] kthread+0x28a/0x350 [ 1036.634669][ T254] ret_from_fork+0x31/0x70 [ 1036.634669][ T254] ret_from_fork_asm+0x1a/0x30 [ 1036.634669][ T254] [ 1036.636847][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.636847][ T254] netdev_get_by_index+0x5e/0x80 [ 1036.636847][ T254] fib6_nh_init+0x3d8/0x1580 [ 1036.636847][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1036.636847][ T254] ip6_route_add+0x1c/0x140 [ 1036.636847][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1036.636847][ T254] inet6_addr_add+0x4f8/0xa40 [ 1036.636847][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1036.636847][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1036.636847][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.636847][ T254] netlink_unicast+0x449/0x710 [ 1036.636847][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.636847][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.636847][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.636847][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.636847][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.636847][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1036.636847][ T254] [ 1036.639122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.639122][ T254] netdev_get_by_index+0x5e/0x80 [ 1036.639122][ T254] fib6_nh_init+0x3d8/0x1580 [ 1036.639122][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1036.639122][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1036.639122][ T254] ipv6_add_addr+0x411/0x2000 [ 1036.639122][ T254] inet6_addr_add+0x30e/0xa40 [ 1036.639122][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1036.639122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1036.639122][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.639122][ T254] netlink_unicast+0x449/0x710 [ 1036.639122][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.639122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.639122][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.639122][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.639122][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.639122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1036.639122][ T254] [ 1036.641400][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.641400][ T254] netdev_get_by_index+0x5e/0x80 [ 1036.641400][ T254] fib6_nh_init+0x3d8/0x1580 [ 1036.641400][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1036.641400][ T254] ip6_route_add+0x1c/0x140 [ 1036.641400][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1036.641400][ T254] addrconf_add_dev+0xe2/0x170 [ 1036.641400][ T254] inet6_addr_add+0x12f/0xa40 [ 1036.641400][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1036.641400][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1036.641400][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.641400][ T254] netlink_unicast+0x449/0x710 [ 1036.641400][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.641400][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.641400][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.641400][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.641400][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.641400][ T254] [ 1036.643666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.643666][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1036.643666][ T254] ipv6_find_idev+0x102/0x170 [ 1036.643666][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1036.643666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1036.643666][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.643666][ T254] netlink_unicast+0x449/0x710 [ 1036.643666][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.643666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.643666][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.643666][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.643666][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.643666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1036.643666][ T254] [ 1036.645420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1036.645420][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1036.645420][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1036.645420][ T254] ipv6_find_idev+0x102/0x170 [ 1036.645420][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1036.645420][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1036.645420][ T254] netlink_rcv_skb+0x130/0x360 [ 1036.645420][ T254] netlink_unicast+0x449/0x710 [ 1036.645420][ T254] netlink_sendmsg+0x723/0xbe0 [ 1036.645420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1036.645420][ T254] ___sys_sendmsg+0xee/0x170 [ 1036.645420][ T254] __sys_sendmsg+0xcd/0x170 [ 1036.645420][ T254] do_syscall_64+0xc6/0x1e0 [ 1036.645420][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1036.645420][ T254] [ 1046.887879][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1046.888397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.888397][ T254] dst_init+0x84/0x4a0 [ 1046.888397][ T254] dst_alloc+0x97/0x150 [ 1046.888397][ T254] ip6_dst_alloc+0x23/0x90 [ 1046.888397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1046.888397][ T254] ip6_pol_route+0x56f/0x840 [ 1046.888397][ T254] fib6_rule_lookup+0x334/0x630 [ 1046.888397][ T254] ip6_route_output_flags+0x259/0x480 [ 1046.888397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1046.888397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1046.888397][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.888397][ T254] netlink_unicast+0x449/0x710 [ 1046.888397][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.888397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.888397][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.888397][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.888397][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.888397][ T254] [ 1046.890618][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.890618][ T254] netdev_get_by_index+0x5e/0x80 [ 1046.890618][ T254] fib6_nh_init+0x3d8/0x1580 [ 1046.890618][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1046.890618][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1046.890618][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1046.890618][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1046.890618][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1046.890618][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1046.890618][ T254] addrconf_dad_begin+0x310/0x670 [ 1046.890618][ T254] addrconf_dad_work+0x10b/0xab0 [ 1046.890618][ T254] process_one_work+0x84d/0x18a0 [ 1046.890618][ T254] worker_thread+0x587/0xd30 [ 1046.890618][ T254] kthread+0x28a/0x350 [ 1046.890618][ T254] ret_from_fork+0x31/0x70 [ 1046.890618][ T254] ret_from_fork_asm+0x1a/0x30 [ 1046.890618][ T254] [ 1046.892791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.892791][ T254] netdev_get_by_index+0x5e/0x80 [ 1046.892791][ T254] fib6_nh_init+0x3d8/0x1580 [ 1046.892791][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1046.892791][ T254] ip6_route_add+0x1c/0x140 [ 1046.892791][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1046.892791][ T254] inet6_addr_add+0x4f8/0xa40 [ 1046.892791][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1046.892791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1046.892791][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.892791][ T254] netlink_unicast+0x449/0x710 [ 1046.892791][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.892791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.892791][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.892791][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.892791][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.892791][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1046.892791][ T254] [ 1046.895041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.895041][ T254] netdev_get_by_index+0x5e/0x80 [ 1046.895041][ T254] fib6_nh_init+0x3d8/0x1580 [ 1046.895041][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1046.895041][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1046.895041][ T254] ipv6_add_addr+0x411/0x2000 [ 1046.895041][ T254] inet6_addr_add+0x30e/0xa40 [ 1046.895041][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1046.895041][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1046.895041][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.895041][ T254] netlink_unicast+0x449/0x710 [ 1046.895041][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.895041][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.895041][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.895041][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.895041][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.895041][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1046.895041][ T254] [ 1046.897280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.897280][ T254] netdev_get_by_index+0x5e/0x80 [ 1046.897280][ T254] fib6_nh_init+0x3d8/0x1580 [ 1046.897280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1046.897280][ T254] ip6_route_add+0x1c/0x140 [ 1046.897280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1046.897280][ T254] addrconf_add_dev+0xe2/0x170 [ 1046.897280][ T254] inet6_addr_add+0x12f/0xa40 [ 1046.897280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1046.897280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1046.897280][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.897280][ T254] netlink_unicast+0x449/0x710 [ 1046.897280][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.897280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.897280][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.897280][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.897280][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.897280][ T254] [ 1046.899482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.899482][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1046.899482][ T254] ipv6_find_idev+0x102/0x170 [ 1046.899482][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1046.899482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1046.899482][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.899482][ T254] netlink_unicast+0x449/0x710 [ 1046.899482][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.899482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.899482][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.899482][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.899482][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.899482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1046.899482][ T254] [ 1046.901205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1046.901205][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1046.901205][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1046.901205][ T254] ipv6_find_idev+0x102/0x170 [ 1046.901205][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1046.901205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1046.901205][ T254] netlink_rcv_skb+0x130/0x360 [ 1046.901205][ T254] netlink_unicast+0x449/0x710 [ 1046.901205][ T254] netlink_sendmsg+0x723/0xbe0 [ 1046.901205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1046.901205][ T254] ___sys_sendmsg+0xee/0x170 [ 1046.901205][ T254] __sys_sendmsg+0xcd/0x170 [ 1046.901205][ T254] do_syscall_64+0xc6/0x1e0 [ 1046.901205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1046.901205][ T254] [ 1056.935866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1056.936398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.936398][ T254] dst_init+0x84/0x4a0 [ 1056.936398][ T254] dst_alloc+0x97/0x150 [ 1056.936398][ T254] ip6_dst_alloc+0x23/0x90 [ 1056.936398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1056.936398][ T254] ip6_pol_route+0x56f/0x840 [ 1056.936398][ T254] fib6_rule_lookup+0x334/0x630 [ 1056.936398][ T254] ip6_route_output_flags+0x259/0x480 [ 1056.936398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1056.936398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1056.936398][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.936398][ T254] netlink_unicast+0x449/0x710 [ 1056.936398][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.936398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.936398][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.936398][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.936398][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.936398][ T254] [ 1056.938599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.938599][ T254] netdev_get_by_index+0x5e/0x80 [ 1056.938599][ T254] fib6_nh_init+0x3d8/0x1580 [ 1056.938599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1056.938599][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1056.938599][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1056.938599][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1056.938599][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1056.938599][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1056.938599][ T254] addrconf_dad_begin+0x310/0x670 [ 1056.938599][ T254] addrconf_dad_work+0x10b/0xab0 [ 1056.938599][ T254] process_one_work+0x84d/0x18a0 [ 1056.938599][ T254] worker_thread+0x587/0xd30 [ 1056.938599][ T254] kthread+0x28a/0x350 [ 1056.938599][ T254] ret_from_fork+0x31/0x70 [ 1056.938599][ T254] ret_from_fork_asm+0x1a/0x30 [ 1056.938599][ T254] [ 1056.940743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.940743][ T254] netdev_get_by_index+0x5e/0x80 [ 1056.940743][ T254] fib6_nh_init+0x3d8/0x1580 [ 1056.940743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1056.940743][ T254] ip6_route_add+0x1c/0x140 [ 1056.940743][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1056.940743][ T254] inet6_addr_add+0x4f8/0xa40 [ 1056.940743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1056.940743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1056.940743][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.940743][ T254] netlink_unicast+0x449/0x710 [ 1056.940743][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.940743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.940743][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.940743][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.940743][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.940743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1056.940743][ T254] [ 1056.943001][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.943001][ T254] netdev_get_by_index+0x5e/0x80 [ 1056.943001][ T254] fib6_nh_init+0x3d8/0x1580 [ 1056.943001][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1056.943001][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1056.943001][ T254] ipv6_add_addr+0x411/0x2000 [ 1056.943001][ T254] inet6_addr_add+0x30e/0xa40 [ 1056.943001][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1056.943001][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1056.943001][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.943001][ T254] netlink_unicast+0x449/0x710 [ 1056.943001][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.943001][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.943001][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.943001][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.943001][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.943001][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1056.943001][ T254] [ 1056.945245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.945245][ T254] netdev_get_by_index+0x5e/0x80 [ 1056.945245][ T254] fib6_nh_init+0x3d8/0x1580 [ 1056.945245][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1056.945245][ T254] ip6_route_add+0x1c/0x140 [ 1056.945245][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1056.945245][ T254] addrconf_add_dev+0xe2/0x170 [ 1056.945245][ T254] inet6_addr_add+0x12f/0xa40 [ 1056.945245][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1056.945245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1056.945245][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.945245][ T254] netlink_unicast+0x449/0x710 [ 1056.945245][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.945245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.945245][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.945245][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.945245][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.945245][ T254] [ 1056.947437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.947437][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1056.947437][ T254] ipv6_find_idev+0x102/0x170 [ 1056.947437][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1056.947437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1056.947437][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.947437][ T254] netlink_unicast+0x449/0x710 [ 1056.947437][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.947437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.947437][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.947437][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.947437][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.947437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1056.947437][ T254] [ 1056.949199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1056.949199][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1056.949199][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1056.949199][ T254] ipv6_find_idev+0x102/0x170 [ 1056.949199][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1056.949199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1056.949199][ T254] netlink_rcv_skb+0x130/0x360 [ 1056.949199][ T254] netlink_unicast+0x449/0x710 [ 1056.949199][ T254] netlink_sendmsg+0x723/0xbe0 [ 1056.949199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1056.949199][ T254] ___sys_sendmsg+0xee/0x170 [ 1056.949199][ T254] __sys_sendmsg+0xcd/0x170 [ 1056.949199][ T254] do_syscall_64+0xc6/0x1e0 [ 1056.949199][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1056.949199][ T254] [ 1067.191831][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1067.192303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.192303][ T254] dst_init+0x84/0x4a0 [ 1067.192303][ T254] dst_alloc+0x97/0x150 [ 1067.192303][ T254] ip6_dst_alloc+0x23/0x90 [ 1067.192303][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1067.192303][ T254] ip6_pol_route+0x56f/0x840 [ 1067.192303][ T254] fib6_rule_lookup+0x334/0x630 [ 1067.192303][ T254] ip6_route_output_flags+0x259/0x480 [ 1067.192303][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1067.192303][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1067.192303][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.192303][ T254] netlink_unicast+0x449/0x710 [ 1067.192303][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.192303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.192303][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.192303][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.192303][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.192303][ T254] [ 1067.194520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.194520][ T254] netdev_get_by_index+0x5e/0x80 [ 1067.194520][ T254] fib6_nh_init+0x3d8/0x1580 [ 1067.194520][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1067.194520][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1067.194520][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1067.194520][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1067.194520][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1067.194520][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1067.194520][ T254] addrconf_dad_begin+0x310/0x670 [ 1067.194520][ T254] addrconf_dad_work+0x10b/0xab0 [ 1067.194520][ T254] process_one_work+0x84d/0x18a0 [ 1067.194520][ T254] worker_thread+0x587/0xd30 [ 1067.194520][ T254] kthread+0x28a/0x350 [ 1067.194520][ T254] ret_from_fork+0x31/0x70 [ 1067.194520][ T254] ret_from_fork_asm+0x1a/0x30 [ 1067.194520][ T254] [ 1067.196674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.196674][ T254] netdev_get_by_index+0x5e/0x80 [ 1067.196674][ T254] fib6_nh_init+0x3d8/0x1580 [ 1067.196674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1067.196674][ T254] ip6_route_add+0x1c/0x140 [ 1067.196674][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1067.196674][ T254] inet6_addr_add+0x4f8/0xa40 [ 1067.196674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.196674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.196674][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.196674][ T254] netlink_unicast+0x449/0x710 [ 1067.196674][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.196674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.196674][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.196674][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.196674][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.196674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.196674][ T254] [ 1067.198977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.198977][ T254] netdev_get_by_index+0x5e/0x80 [ 1067.198977][ T254] fib6_nh_init+0x3d8/0x1580 [ 1067.198977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1067.198977][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1067.198977][ T254] ipv6_add_addr+0x411/0x2000 [ 1067.198977][ T254] inet6_addr_add+0x30e/0xa40 [ 1067.198977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.198977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.198977][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.198977][ T254] netlink_unicast+0x449/0x710 [ 1067.198977][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.198977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.198977][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.198977][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.198977][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.198977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.198977][ T254] [ 1067.201278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.201278][ T254] netdev_get_by_index+0x5e/0x80 [ 1067.201278][ T254] fib6_nh_init+0x3d8/0x1580 [ 1067.201278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1067.201278][ T254] ip6_route_add+0x1c/0x140 [ 1067.201278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1067.201278][ T254] addrconf_add_dev+0xe2/0x170 [ 1067.201278][ T254] inet6_addr_add+0x12f/0xa40 [ 1067.201278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1067.201278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.201278][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.201278][ T254] netlink_unicast+0x449/0x710 [ 1067.201278][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.201278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.201278][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.201278][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.201278][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.201278][ T254] [ 1067.203537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.203537][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1067.203537][ T254] ipv6_find_idev+0x102/0x170 [ 1067.203537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1067.203537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.203537][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.203537][ T254] netlink_unicast+0x449/0x710 [ 1067.203537][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.203537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.203537][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.203537][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.203537][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.203537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.203537][ T254] [ 1067.205307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1067.205307][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1067.205307][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1067.205307][ T254] ipv6_find_idev+0x102/0x170 [ 1067.205307][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1067.205307][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1067.205307][ T254] netlink_rcv_skb+0x130/0x360 [ 1067.205307][ T254] netlink_unicast+0x449/0x710 [ 1067.205307][ T254] netlink_sendmsg+0x723/0xbe0 [ 1067.205307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1067.205307][ T254] ___sys_sendmsg+0xee/0x170 [ 1067.205307][ T254] __sys_sendmsg+0xcd/0x170 [ 1067.205307][ T254] do_syscall_64+0xc6/0x1e0 [ 1067.205307][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1067.205307][ T254] [ 1077.287881][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1077.288407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.288407][ T254] dst_init+0x84/0x4a0 [ 1077.288407][ T254] dst_alloc+0x97/0x150 [ 1077.288407][ T254] ip6_dst_alloc+0x23/0x90 [ 1077.288407][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1077.288407][ T254] ip6_pol_route+0x56f/0x840 [ 1077.288407][ T254] fib6_rule_lookup+0x334/0x630 [ 1077.288407][ T254] ip6_route_output_flags+0x259/0x480 [ 1077.288407][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1077.288407][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1077.288407][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.288407][ T254] netlink_unicast+0x449/0x710 [ 1077.288407][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.288407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.288407][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.288407][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.288407][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.288407][ T254] [ 1077.290646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.290646][ T254] netdev_get_by_index+0x5e/0x80 [ 1077.290646][ T254] fib6_nh_init+0x3d8/0x1580 [ 1077.290646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1077.290646][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1077.290646][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1077.290646][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1077.290646][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1077.290646][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1077.290646][ T254] addrconf_dad_begin+0x310/0x670 [ 1077.290646][ T254] addrconf_dad_work+0x10b/0xab0 [ 1077.290646][ T254] process_one_work+0x84d/0x18a0 [ 1077.290646][ T254] worker_thread+0x587/0xd30 [ 1077.290646][ T254] kthread+0x28a/0x350 [ 1077.290646][ T254] ret_from_fork+0x31/0x70 [ 1077.290646][ T254] ret_from_fork_asm+0x1a/0x30 [ 1077.290646][ T254] [ 1077.292803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.292803][ T254] netdev_get_by_index+0x5e/0x80 [ 1077.292803][ T254] fib6_nh_init+0x3d8/0x1580 [ 1077.292803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1077.292803][ T254] ip6_route_add+0x1c/0x140 [ 1077.292803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1077.292803][ T254] inet6_addr_add+0x4f8/0xa40 [ 1077.292803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1077.292803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1077.292803][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.292803][ T254] netlink_unicast+0x449/0x710 [ 1077.292803][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.292803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.292803][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.292803][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.292803][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.292803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1077.292803][ T254] [ 1077.295052][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.295052][ T254] netdev_get_by_index+0x5e/0x80 [ 1077.295052][ T254] fib6_nh_init+0x3d8/0x1580 [ 1077.295052][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1077.295052][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1077.295052][ T254] ipv6_add_addr+0x411/0x2000 [ 1077.295052][ T254] inet6_addr_add+0x30e/0xa40 [ 1077.295052][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1077.295052][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1077.295052][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.295052][ T254] netlink_unicast+0x449/0x710 [ 1077.295052][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.295052][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.295052][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.295052][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.295052][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.295052][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1077.295052][ T254] [ 1077.297303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.297303][ T254] netdev_get_by_index+0x5e/0x80 [ 1077.297303][ T254] fib6_nh_init+0x3d8/0x1580 [ 1077.297303][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1077.297303][ T254] ip6_route_add+0x1c/0x140 [ 1077.297303][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1077.297303][ T254] addrconf_add_dev+0xe2/0x170 [ 1077.297303][ T254] inet6_addr_add+0x12f/0xa40 [ 1077.297303][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1077.297303][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1077.297303][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.297303][ T254] netlink_unicast+0x449/0x710 [ 1077.297303][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.297303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.297303][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.297303][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.297303][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.297303][ T254] [ 1077.299506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.299506][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1077.299506][ T254] ipv6_find_idev+0x102/0x170 [ 1077.299506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1077.299506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1077.299506][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.299506][ T254] netlink_unicast+0x449/0x710 [ 1077.299506][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.299506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.299506][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.299506][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.299506][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.299506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1077.299506][ T254] [ 1077.301239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1077.301239][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1077.301239][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1077.301239][ T254] ipv6_find_idev+0x102/0x170 [ 1077.301239][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1077.301239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1077.301239][ T254] netlink_rcv_skb+0x130/0x360 [ 1077.301239][ T254] netlink_unicast+0x449/0x710 [ 1077.301239][ T254] netlink_sendmsg+0x723/0xbe0 [ 1077.301239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1077.301239][ T254] ___sys_sendmsg+0xee/0x170 [ 1077.301239][ T254] __sys_sendmsg+0xcd/0x170 [ 1077.301239][ T254] do_syscall_64+0xc6/0x1e0 [ 1077.301239][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1077.301239][ T254] [ 1087.543829][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1087.544316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.544316][ T254] dst_init+0x84/0x4a0 [ 1087.544316][ T254] dst_alloc+0x97/0x150 [ 1087.544316][ T254] ip6_dst_alloc+0x23/0x90 [ 1087.544316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1087.544316][ T254] ip6_pol_route+0x56f/0x840 [ 1087.544316][ T254] fib6_rule_lookup+0x334/0x630 [ 1087.544316][ T254] ip6_route_output_flags+0x259/0x480 [ 1087.544316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1087.544316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1087.544316][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.544316][ T254] netlink_unicast+0x449/0x710 [ 1087.544316][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.544316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.544316][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.544316][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.544316][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.544316][ T254] [ 1087.546584][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.546584][ T254] netdev_get_by_index+0x5e/0x80 [ 1087.546584][ T254] fib6_nh_init+0x3d8/0x1580 [ 1087.546584][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1087.546584][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1087.546584][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1087.546584][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1087.546584][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1087.546584][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1087.546584][ T254] addrconf_dad_begin+0x310/0x670 [ 1087.546584][ T254] addrconf_dad_work+0x10b/0xab0 [ 1087.546584][ T254] process_one_work+0x84d/0x18a0 [ 1087.546584][ T254] worker_thread+0x587/0xd30 [ 1087.546584][ T254] kthread+0x28a/0x350 [ 1087.546584][ T254] ret_from_fork+0x31/0x70 [ 1087.546584][ T254] ret_from_fork_asm+0x1a/0x30 [ 1087.546584][ T254] [ 1087.548768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.548768][ T254] netdev_get_by_index+0x5e/0x80 [ 1087.548768][ T254] fib6_nh_init+0x3d8/0x1580 [ 1087.548768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1087.548768][ T254] ip6_route_add+0x1c/0x140 [ 1087.548768][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1087.548768][ T254] inet6_addr_add+0x4f8/0xa40 [ 1087.548768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1087.548768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1087.548768][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.548768][ T254] netlink_unicast+0x449/0x710 [ 1087.548768][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.548768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.548768][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.548768][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.548768][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.548768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1087.548768][ T254] [ 1087.551054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.551054][ T254] netdev_get_by_index+0x5e/0x80 [ 1087.551054][ T254] fib6_nh_init+0x3d8/0x1580 [ 1087.551054][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1087.551054][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1087.551054][ T254] ipv6_add_addr+0x411/0x2000 [ 1087.551054][ T254] inet6_addr_add+0x30e/0xa40 [ 1087.551054][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1087.551054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1087.551054][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.551054][ T254] netlink_unicast+0x449/0x710 [ 1087.551054][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.551054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.551054][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.551054][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.551054][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.551054][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1087.551054][ T254] [ 1087.553329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.553329][ T254] netdev_get_by_index+0x5e/0x80 [ 1087.553329][ T254] fib6_nh_init+0x3d8/0x1580 [ 1087.553329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1087.553329][ T254] ip6_route_add+0x1c/0x140 [ 1087.553329][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1087.553329][ T254] addrconf_add_dev+0xe2/0x170 [ 1087.553329][ T254] inet6_addr_add+0x12f/0xa40 [ 1087.553329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1087.553329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1087.553329][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.553329][ T254] netlink_unicast+0x449/0x710 [ 1087.553329][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.553329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.553329][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.553329][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.553329][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.553329][ T254] [ 1087.555560][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.555560][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1087.555560][ T254] ipv6_find_idev+0x102/0x170 [ 1087.555560][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1087.555560][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1087.555560][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.555560][ T254] netlink_unicast+0x449/0x710 [ 1087.555560][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.555560][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.555560][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.555560][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.555560][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.555560][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1087.555560][ T254] [ 1087.557343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1087.557343][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1087.557343][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1087.557343][ T254] ipv6_find_idev+0x102/0x170 [ 1087.557343][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1087.557343][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1087.557343][ T254] netlink_rcv_skb+0x130/0x360 [ 1087.557343][ T254] netlink_unicast+0x449/0x710 [ 1087.557343][ T254] netlink_sendmsg+0x723/0xbe0 [ 1087.557343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1087.557343][ T254] ___sys_sendmsg+0xee/0x170 [ 1087.557343][ T254] __sys_sendmsg+0xcd/0x170 [ 1087.557343][ T254] do_syscall_64+0xc6/0x1e0 [ 1087.557343][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1087.557343][ T254] [ 1097.799872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1097.800424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.800424][ T254] dst_init+0x84/0x4a0 [ 1097.800424][ T254] dst_alloc+0x97/0x150 [ 1097.800424][ T254] ip6_dst_alloc+0x23/0x90 [ 1097.800424][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1097.800424][ T254] ip6_pol_route+0x56f/0x840 [ 1097.800424][ T254] fib6_rule_lookup+0x334/0x630 [ 1097.800424][ T254] ip6_route_output_flags+0x259/0x480 [ 1097.800424][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1097.800424][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1097.800424][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.800424][ T254] netlink_unicast+0x449/0x710 [ 1097.800424][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.800424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.800424][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.800424][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.800424][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.800424][ T254] [ 1097.802672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.802672][ T254] netdev_get_by_index+0x5e/0x80 [ 1097.802672][ T254] fib6_nh_init+0x3d8/0x1580 [ 1097.802672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1097.802672][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1097.802672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1097.802672][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1097.802672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1097.802672][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1097.802672][ T254] addrconf_dad_begin+0x310/0x670 [ 1097.802672][ T254] addrconf_dad_work+0x10b/0xab0 [ 1097.802672][ T254] process_one_work+0x84d/0x18a0 [ 1097.802672][ T254] worker_thread+0x587/0xd30 [ 1097.802672][ T254] kthread+0x28a/0x350 [ 1097.802672][ T254] ret_from_fork+0x31/0x70 [ 1097.802672][ T254] ret_from_fork_asm+0x1a/0x30 [ 1097.802672][ T254] [ 1097.804863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.804863][ T254] netdev_get_by_index+0x5e/0x80 [ 1097.804863][ T254] fib6_nh_init+0x3d8/0x1580 [ 1097.804863][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1097.804863][ T254] ip6_route_add+0x1c/0x140 [ 1097.804863][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1097.804863][ T254] inet6_addr_add+0x4f8/0xa40 [ 1097.804863][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1097.804863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1097.804863][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.804863][ T254] netlink_unicast+0x449/0x710 [ 1097.804863][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.804863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.804863][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.804863][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.804863][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.804863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1097.804863][ T254] [ 1097.807139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.807139][ T254] netdev_get_by_index+0x5e/0x80 [ 1097.807139][ T254] fib6_nh_init+0x3d8/0x1580 [ 1097.807139][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1097.807139][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1097.807139][ T254] ipv6_add_addr+0x411/0x2000 [ 1097.807139][ T254] inet6_addr_add+0x30e/0xa40 [ 1097.807139][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1097.807139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1097.807139][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.807139][ T254] netlink_unicast+0x449/0x710 [ 1097.807139][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.807139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.807139][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.807139][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.807139][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.807139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1097.807139][ T254] [ 1097.809405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.809405][ T254] netdev_get_by_index+0x5e/0x80 [ 1097.809405][ T254] fib6_nh_init+0x3d8/0x1580 [ 1097.809405][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1097.809405][ T254] ip6_route_add+0x1c/0x140 [ 1097.809405][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1097.809405][ T254] addrconf_add_dev+0xe2/0x170 [ 1097.809405][ T254] inet6_addr_add+0x12f/0xa40 [ 1097.809405][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1097.809405][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1097.809405][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.809405][ T254] netlink_unicast+0x449/0x710 [ 1097.809405][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.809405][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.809405][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.809405][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.809405][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.809405][ T254] [ 1097.811641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.811641][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1097.811641][ T254] ipv6_find_idev+0x102/0x170 [ 1097.811641][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1097.811641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1097.811641][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.811641][ T254] netlink_unicast+0x449/0x710 [ 1097.811641][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.811641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.811641][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.811641][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.811641][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.811641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1097.811641][ T254] [ 1097.813387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1097.813387][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1097.813387][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1097.813387][ T254] ipv6_find_idev+0x102/0x170 [ 1097.813387][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1097.813387][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1097.813387][ T254] netlink_rcv_skb+0x130/0x360 [ 1097.813387][ T254] netlink_unicast+0x449/0x710 [ 1097.813387][ T254] netlink_sendmsg+0x723/0xbe0 [ 1097.813387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1097.813387][ T254] ___sys_sendmsg+0xee/0x170 [ 1097.813387][ T254] __sys_sendmsg+0xcd/0x170 [ 1097.813387][ T254] do_syscall_64+0xc6/0x1e0 [ 1097.813387][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1097.813387][ T254] [ 1107.927855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1107.928422][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.928422][ T254] dst_init+0x84/0x4a0 [ 1107.928422][ T254] dst_alloc+0x97/0x150 [ 1107.928422][ T254] ip6_dst_alloc+0x23/0x90 [ 1107.928422][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1107.928422][ T254] ip6_pol_route+0x56f/0x840 [ 1107.928422][ T254] fib6_rule_lookup+0x334/0x630 [ 1107.928422][ T254] ip6_route_output_flags+0x259/0x480 [ 1107.928422][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1107.928422][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1107.928422][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.928422][ T254] netlink_unicast+0x449/0x710 [ 1107.928422][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.928422][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.928422][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.928422][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.928422][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.928422][ T254] [ 1107.930645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.930645][ T254] netdev_get_by_index+0x5e/0x80 [ 1107.930645][ T254] fib6_nh_init+0x3d8/0x1580 [ 1107.930645][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1107.930645][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1107.930645][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1107.930645][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1107.930645][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1107.930645][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1107.930645][ T254] addrconf_dad_begin+0x310/0x670 [ 1107.930645][ T254] addrconf_dad_work+0x10b/0xab0 [ 1107.930645][ T254] process_one_work+0x84d/0x18a0 [ 1107.930645][ T254] worker_thread+0x587/0xd30 [ 1107.930645][ T254] kthread+0x28a/0x350 [ 1107.930645][ T254] ret_from_fork+0x31/0x70 [ 1107.930645][ T254] ret_from_fork_asm+0x1a/0x30 [ 1107.930645][ T254] [ 1107.932837][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.932837][ T254] netdev_get_by_index+0x5e/0x80 [ 1107.932837][ T254] fib6_nh_init+0x3d8/0x1580 [ 1107.932837][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1107.932837][ T254] ip6_route_add+0x1c/0x140 [ 1107.932837][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1107.932837][ T254] inet6_addr_add+0x4f8/0xa40 [ 1107.932837][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1107.932837][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1107.932837][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.932837][ T254] netlink_unicast+0x449/0x710 [ 1107.932837][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.932837][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.932837][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.932837][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.932837][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.932837][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1107.932837][ T254] [ 1107.935104][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.935104][ T254] netdev_get_by_index+0x5e/0x80 [ 1107.935104][ T254] fib6_nh_init+0x3d8/0x1580 [ 1107.935104][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1107.935104][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1107.935104][ T254] ipv6_add_addr+0x411/0x2000 [ 1107.935104][ T254] inet6_addr_add+0x30e/0xa40 [ 1107.935104][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1107.935104][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1107.935104][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.935104][ T254] netlink_unicast+0x449/0x710 [ 1107.935104][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.935104][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.935104][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.935104][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.935104][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.935104][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1107.935104][ T254] [ 1107.937375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.937375][ T254] netdev_get_by_index+0x5e/0x80 [ 1107.937375][ T254] fib6_nh_init+0x3d8/0x1580 [ 1107.937375][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1107.937375][ T254] ip6_route_add+0x1c/0x140 [ 1107.937375][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1107.937375][ T254] addrconf_add_dev+0xe2/0x170 [ 1107.937375][ T254] inet6_addr_add+0x12f/0xa40 [ 1107.937375][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1107.937375][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1107.937375][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.937375][ T254] netlink_unicast+0x449/0x710 [ 1107.937375][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.937375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.937375][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.937375][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.937375][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.937375][ T254] [ 1107.939595][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.939595][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1107.939595][ T254] ipv6_find_idev+0x102/0x170 [ 1107.939595][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1107.939595][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1107.939595][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.939595][ T254] netlink_unicast+0x449/0x710 [ 1107.939595][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.939595][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.939595][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.939595][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.939595][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.939595][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1107.939595][ T254] [ 1107.941339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1107.941339][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1107.941339][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1107.941339][ T254] ipv6_find_idev+0x102/0x170 [ 1107.941339][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1107.941339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1107.941339][ T254] netlink_rcv_skb+0x130/0x360 [ 1107.941339][ T254] netlink_unicast+0x449/0x710 [ 1107.941339][ T254] netlink_sendmsg+0x723/0xbe0 [ 1107.941339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1107.941339][ T254] ___sys_sendmsg+0xee/0x170 [ 1107.941339][ T254] __sys_sendmsg+0xcd/0x170 [ 1107.941339][ T254] do_syscall_64+0xc6/0x1e0 [ 1107.941339][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1107.941339][ T254] [ 1118.127841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1118.128382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.128382][ T254] dst_init+0x84/0x4a0 [ 1118.128382][ T254] dst_alloc+0x97/0x150 [ 1118.128382][ T254] ip6_dst_alloc+0x23/0x90 [ 1118.128382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1118.128382][ T254] ip6_pol_route+0x56f/0x840 [ 1118.128382][ T254] fib6_rule_lookup+0x334/0x630 [ 1118.128382][ T254] ip6_route_output_flags+0x259/0x480 [ 1118.128382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1118.128382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1118.128382][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.128382][ T254] netlink_unicast+0x449/0x710 [ 1118.128382][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.128382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.128382][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.128382][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.128382][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.128382][ T254] [ 1118.130589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.130589][ T254] netdev_get_by_index+0x5e/0x80 [ 1118.130589][ T254] fib6_nh_init+0x3d8/0x1580 [ 1118.130589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1118.130589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1118.130589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1118.130589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1118.130589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1118.130589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1118.130589][ T254] addrconf_dad_begin+0x310/0x670 [ 1118.130589][ T254] addrconf_dad_work+0x10b/0xab0 [ 1118.130589][ T254] process_one_work+0x84d/0x18a0 [ 1118.130589][ T254] worker_thread+0x587/0xd30 [ 1118.130589][ T254] kthread+0x28a/0x350 [ 1118.130589][ T254] ret_from_fork+0x31/0x70 [ 1118.130589][ T254] ret_from_fork_asm+0x1a/0x30 [ 1118.130589][ T254] [ 1118.132754][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.132754][ T254] netdev_get_by_index+0x5e/0x80 [ 1118.132754][ T254] fib6_nh_init+0x3d8/0x1580 [ 1118.132754][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1118.132754][ T254] ip6_route_add+0x1c/0x140 [ 1118.132754][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1118.132754][ T254] inet6_addr_add+0x4f8/0xa40 [ 1118.132754][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1118.132754][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1118.132754][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.132754][ T254] netlink_unicast+0x449/0x710 [ 1118.132754][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.132754][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.132754][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.132754][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.132754][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.132754][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1118.132754][ T254] [ 1118.135001][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.135001][ T254] netdev_get_by_index+0x5e/0x80 [ 1118.135001][ T254] fib6_nh_init+0x3d8/0x1580 [ 1118.135001][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1118.135001][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1118.135001][ T254] ipv6_add_addr+0x411/0x2000 [ 1118.135001][ T254] inet6_addr_add+0x30e/0xa40 [ 1118.135001][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1118.135001][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1118.135001][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.135001][ T254] netlink_unicast+0x449/0x710 [ 1118.135001][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.135001][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.135001][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.135001][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.135001][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.135001][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1118.135001][ T254] [ 1118.137309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.137309][ T254] netdev_get_by_index+0x5e/0x80 [ 1118.137309][ T254] fib6_nh_init+0x3d8/0x1580 [ 1118.137309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1118.137309][ T254] ip6_route_add+0x1c/0x140 [ 1118.137309][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1118.137309][ T254] addrconf_add_dev+0xe2/0x170 [ 1118.137309][ T254] inet6_addr_add+0x12f/0xa40 [ 1118.137309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1118.137309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1118.137309][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.137309][ T254] netlink_unicast+0x449/0x710 [ 1118.137309][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.137309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.137309][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.137309][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.137309][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.137309][ T254] [ 1118.141302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.141302][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1118.141302][ T254] ipv6_find_idev+0x102/0x170 [ 1118.141302][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1118.141302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1118.141302][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.141302][ T254] netlink_unicast+0x449/0x710 [ 1118.141302][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.141302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.141302][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.141302][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.141302][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.141302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1118.141302][ T254] [ 1118.144462][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1118.144462][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1118.144462][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1118.144462][ T254] ipv6_find_idev+0x102/0x170 [ 1118.144462][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1118.144462][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1118.144462][ T254] netlink_rcv_skb+0x130/0x360 [ 1118.144462][ T254] netlink_unicast+0x449/0x710 [ 1118.144462][ T254] netlink_sendmsg+0x723/0xbe0 [ 1118.144462][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1118.144462][ T254] ___sys_sendmsg+0xee/0x170 [ 1118.144462][ T254] __sys_sendmsg+0xcd/0x170 [ 1118.144462][ T254] do_syscall_64+0xc6/0x1e0 [ 1118.144462][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1118.144462][ T254] [ 1128.383818][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1128.384349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.384349][ T254] dst_init+0x84/0x4a0 [ 1128.384349][ T254] dst_alloc+0x97/0x150 [ 1128.384349][ T254] ip6_dst_alloc+0x23/0x90 [ 1128.384349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1128.384349][ T254] ip6_pol_route+0x56f/0x840 [ 1128.384349][ T254] fib6_rule_lookup+0x334/0x630 [ 1128.384349][ T254] ip6_route_output_flags+0x259/0x480 [ 1128.384349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1128.384349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1128.384349][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.384349][ T254] netlink_unicast+0x449/0x710 [ 1128.384349][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.384349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.384349][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.384349][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.384349][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.384349][ T254] [ 1128.386555][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.386555][ T254] netdev_get_by_index+0x5e/0x80 [ 1128.386555][ T254] fib6_nh_init+0x3d8/0x1580 [ 1128.386555][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1128.386555][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1128.386555][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1128.386555][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1128.386555][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1128.386555][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1128.386555][ T254] addrconf_dad_begin+0x310/0x670 [ 1128.386555][ T254] addrconf_dad_work+0x10b/0xab0 [ 1128.386555][ T254] process_one_work+0x84d/0x18a0 [ 1128.386555][ T254] worker_thread+0x587/0xd30 [ 1128.386555][ T254] kthread+0x28a/0x350 [ 1128.386555][ T254] ret_from_fork+0x31/0x70 [ 1128.386555][ T254] ret_from_fork_asm+0x1a/0x30 [ 1128.386555][ T254] [ 1128.388830][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.388830][ T254] netdev_get_by_index+0x5e/0x80 [ 1128.388830][ T254] fib6_nh_init+0x3d8/0x1580 [ 1128.388830][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1128.388830][ T254] ip6_route_add+0x1c/0x140 [ 1128.388830][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1128.388830][ T254] inet6_addr_add+0x4f8/0xa40 [ 1128.388830][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1128.388830][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1128.388830][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.388830][ T254] netlink_unicast+0x449/0x710 [ 1128.388830][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.388830][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.388830][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.388830][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.388830][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.388830][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1128.388830][ T254] [ 1128.391111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.391111][ T254] netdev_get_by_index+0x5e/0x80 [ 1128.391111][ T254] fib6_nh_init+0x3d8/0x1580 [ 1128.391111][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1128.391111][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1128.391111][ T254] ipv6_add_addr+0x411/0x2000 [ 1128.391111][ T254] inet6_addr_add+0x30e/0xa40 [ 1128.391111][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1128.391111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1128.391111][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.391111][ T254] netlink_unicast+0x449/0x710 [ 1128.391111][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.391111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.391111][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.391111][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.391111][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.391111][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1128.391111][ T254] [ 1128.393374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.393374][ T254] netdev_get_by_index+0x5e/0x80 [ 1128.393374][ T254] fib6_nh_init+0x3d8/0x1580 [ 1128.393374][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1128.393374][ T254] ip6_route_add+0x1c/0x140 [ 1128.393374][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1128.393374][ T254] addrconf_add_dev+0xe2/0x170 [ 1128.393374][ T254] inet6_addr_add+0x12f/0xa40 [ 1128.393374][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1128.393374][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1128.393374][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.393374][ T254] netlink_unicast+0x449/0x710 [ 1128.393374][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.393374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.393374][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.393374][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.393374][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.393374][ T254] [ 1128.395597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.395597][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1128.395597][ T254] ipv6_find_idev+0x102/0x170 [ 1128.395597][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1128.395597][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1128.395597][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.395597][ T254] netlink_unicast+0x449/0x710 [ 1128.395597][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.395597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.395597][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.395597][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.395597][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.395597][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1128.395597][ T254] [ 1128.397912][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1128.397912][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1128.397912][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1128.397912][ T254] ipv6_find_idev+0x102/0x170 [ 1128.397912][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1128.397912][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1128.397912][ T254] netlink_rcv_skb+0x130/0x360 [ 1128.397912][ T254] netlink_unicast+0x449/0x710 [ 1128.397912][ T254] netlink_sendmsg+0x723/0xbe0 [ 1128.397912][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1128.397912][ T254] ___sys_sendmsg+0xee/0x170 [ 1128.397912][ T254] __sys_sendmsg+0xcd/0x170 [ 1128.397912][ T254] do_syscall_64+0xc6/0x1e0 [ 1128.397912][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1128.397912][ T254] [ 1138.639963][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1138.640534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.640534][ T254] dst_init+0x84/0x4a0 [ 1138.640534][ T254] dst_alloc+0x97/0x150 [ 1138.640534][ T254] ip6_dst_alloc+0x23/0x90 [ 1138.640534][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1138.640534][ T254] ip6_pol_route+0x56f/0x840 [ 1138.640534][ T254] fib6_rule_lookup+0x334/0x630 [ 1138.640534][ T254] ip6_route_output_flags+0x259/0x480 [ 1138.640534][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1138.640534][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1138.640534][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.640534][ T254] netlink_unicast+0x449/0x710 [ 1138.640534][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.640534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.640534][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.640534][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.640534][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.640534][ T254] [ 1138.642786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.642786][ T254] netdev_get_by_index+0x5e/0x80 [ 1138.642786][ T254] fib6_nh_init+0x3d8/0x1580 [ 1138.642786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1138.642786][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1138.642786][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1138.642786][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1138.642786][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1138.642786][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1138.642786][ T254] addrconf_dad_begin+0x310/0x670 [ 1138.642786][ T254] addrconf_dad_work+0x10b/0xab0 [ 1138.642786][ T254] process_one_work+0x84d/0x18a0 [ 1138.642786][ T254] worker_thread+0x587/0xd30 [ 1138.642786][ T254] kthread+0x28a/0x350 [ 1138.642786][ T254] ret_from_fork+0x31/0x70 [ 1138.642786][ T254] ret_from_fork_asm+0x1a/0x30 [ 1138.642786][ T254] [ 1138.644985][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.644985][ T254] netdev_get_by_index+0x5e/0x80 [ 1138.644985][ T254] fib6_nh_init+0x3d8/0x1580 [ 1138.644985][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1138.644985][ T254] ip6_route_add+0x1c/0x140 [ 1138.644985][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1138.644985][ T254] inet6_addr_add+0x4f8/0xa40 [ 1138.644985][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1138.644985][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1138.644985][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.644985][ T254] netlink_unicast+0x449/0x710 [ 1138.644985][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.644985][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.644985][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.644985][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.644985][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.644985][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1138.644985][ T254] [ 1138.647258][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.647258][ T254] netdev_get_by_index+0x5e/0x80 [ 1138.647258][ T254] fib6_nh_init+0x3d8/0x1580 [ 1138.647258][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1138.647258][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1138.647258][ T254] ipv6_add_addr+0x411/0x2000 [ 1138.647258][ T254] inet6_addr_add+0x30e/0xa40 [ 1138.647258][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1138.647258][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1138.647258][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.647258][ T254] netlink_unicast+0x449/0x710 [ 1138.647258][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.647258][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.647258][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.647258][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.647258][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.647258][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1138.647258][ T254] [ 1138.649532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.649532][ T254] netdev_get_by_index+0x5e/0x80 [ 1138.649532][ T254] fib6_nh_init+0x3d8/0x1580 [ 1138.649532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1138.649532][ T254] ip6_route_add+0x1c/0x140 [ 1138.649532][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1138.649532][ T254] addrconf_add_dev+0xe2/0x170 [ 1138.649532][ T254] inet6_addr_add+0x12f/0xa40 [ 1138.649532][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1138.649532][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1138.649532][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.649532][ T254] netlink_unicast+0x449/0x710 [ 1138.649532][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.649532][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.649532][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.649532][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.649532][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.649532][ T254] [ 1138.651788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.651788][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1138.651788][ T254] ipv6_find_idev+0x102/0x170 [ 1138.651788][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1138.651788][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1138.651788][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.651788][ T254] netlink_unicast+0x449/0x710 [ 1138.651788][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.651788][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.651788][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.651788][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.651788][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.651788][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1138.651788][ T254] [ 1138.653531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1138.653531][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1138.653531][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1138.653531][ T254] ipv6_find_idev+0x102/0x170 [ 1138.653531][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1138.653531][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1138.653531][ T254] netlink_rcv_skb+0x130/0x360 [ 1138.653531][ T254] netlink_unicast+0x449/0x710 [ 1138.653531][ T254] netlink_sendmsg+0x723/0xbe0 [ 1138.653531][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1138.653531][ T254] ___sys_sendmsg+0xee/0x170 [ 1138.653531][ T254] __sys_sendmsg+0xcd/0x170 [ 1138.653531][ T254] do_syscall_64+0xc6/0x1e0 [ 1138.653531][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1138.653531][ T254] [ 1148.895906][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1148.896471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.896471][ T254] dst_init+0x84/0x4a0 [ 1148.896471][ T254] dst_alloc+0x97/0x150 [ 1148.896471][ T254] ip6_dst_alloc+0x23/0x90 [ 1148.896471][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1148.896471][ T254] ip6_pol_route+0x56f/0x840 [ 1148.896471][ T254] fib6_rule_lookup+0x334/0x630 [ 1148.896471][ T254] ip6_route_output_flags+0x259/0x480 [ 1148.896471][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1148.896471][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1148.896471][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.896471][ T254] netlink_unicast+0x449/0x710 [ 1148.896471][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.896471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.896471][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.896471][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.896471][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.896471][ T254] [ 1148.898707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.898707][ T254] netdev_get_by_index+0x5e/0x80 [ 1148.898707][ T254] fib6_nh_init+0x3d8/0x1580 [ 1148.898707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1148.898707][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1148.898707][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1148.898707][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1148.898707][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1148.898707][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1148.898707][ T254] addrconf_dad_begin+0x310/0x670 [ 1148.898707][ T254] addrconf_dad_work+0x10b/0xab0 [ 1148.898707][ T254] process_one_work+0x84d/0x18a0 [ 1148.898707][ T254] worker_thread+0x587/0xd30 [ 1148.898707][ T254] kthread+0x28a/0x350 [ 1148.898707][ T254] ret_from_fork+0x31/0x70 [ 1148.898707][ T254] ret_from_fork_asm+0x1a/0x30 [ 1148.898707][ T254] [ 1148.900881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.900881][ T254] netdev_get_by_index+0x5e/0x80 [ 1148.900881][ T254] fib6_nh_init+0x3d8/0x1580 [ 1148.900881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1148.900881][ T254] ip6_route_add+0x1c/0x140 [ 1148.900881][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1148.900881][ T254] inet6_addr_add+0x4f8/0xa40 [ 1148.900881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1148.900881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1148.900881][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.900881][ T254] netlink_unicast+0x449/0x710 [ 1148.900881][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.900881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.900881][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.900881][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.900881][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.900881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1148.900881][ T254] [ 1148.903163][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.903163][ T254] netdev_get_by_index+0x5e/0x80 [ 1148.903163][ T254] fib6_nh_init+0x3d8/0x1580 [ 1148.903163][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1148.903163][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1148.903163][ T254] ipv6_add_addr+0x411/0x2000 [ 1148.903163][ T254] inet6_addr_add+0x30e/0xa40 [ 1148.903163][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1148.903163][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1148.903163][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.903163][ T254] netlink_unicast+0x449/0x710 [ 1148.903163][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.903163][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.903163][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.903163][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.903163][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.903163][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1148.903163][ T254] [ 1148.905433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.905433][ T254] netdev_get_by_index+0x5e/0x80 [ 1148.905433][ T254] fib6_nh_init+0x3d8/0x1580 [ 1148.905433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1148.905433][ T254] ip6_route_add+0x1c/0x140 [ 1148.905433][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1148.905433][ T254] addrconf_add_dev+0xe2/0x170 [ 1148.905433][ T254] inet6_addr_add+0x12f/0xa40 [ 1148.905433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1148.905433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1148.905433][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.905433][ T254] netlink_unicast+0x449/0x710 [ 1148.905433][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.905433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.905433][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.905433][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.905433][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.905433][ T254] [ 1148.907656][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.907656][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1148.907656][ T254] ipv6_find_idev+0x102/0x170 [ 1148.907656][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1148.907656][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1148.907656][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.907656][ T254] netlink_unicast+0x449/0x710 [ 1148.907656][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.907656][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.907656][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.907656][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.907656][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.907656][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1148.907656][ T254] [ 1148.909400][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1148.909400][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1148.909400][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1148.909400][ T254] ipv6_find_idev+0x102/0x170 [ 1148.909400][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1148.909400][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1148.909400][ T254] netlink_rcv_skb+0x130/0x360 [ 1148.909400][ T254] netlink_unicast+0x449/0x710 [ 1148.909400][ T254] netlink_sendmsg+0x723/0xbe0 [ 1148.909400][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1148.909400][ T254] ___sys_sendmsg+0xee/0x170 [ 1148.909400][ T254] __sys_sendmsg+0xcd/0x170 [ 1148.909400][ T254] do_syscall_64+0xc6/0x1e0 [ 1148.909400][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1148.909400][ T254] [ 1159.151843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1159.152407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.152407][ T254] dst_init+0x84/0x4a0 [ 1159.152407][ T254] dst_alloc+0x97/0x150 [ 1159.152407][ T254] ip6_dst_alloc+0x23/0x90 [ 1159.152407][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1159.152407][ T254] ip6_pol_route+0x56f/0x840 [ 1159.152407][ T254] fib6_rule_lookup+0x334/0x630 [ 1159.152407][ T254] ip6_route_output_flags+0x259/0x480 [ 1159.152407][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1159.152407][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1159.152407][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.152407][ T254] netlink_unicast+0x449/0x710 [ 1159.152407][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.152407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.152407][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.152407][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.152407][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.152407][ T254] [ 1159.154645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.154645][ T254] netdev_get_by_index+0x5e/0x80 [ 1159.154645][ T254] fib6_nh_init+0x3d8/0x1580 [ 1159.154645][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1159.154645][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1159.154645][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1159.154645][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1159.154645][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1159.154645][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1159.154645][ T254] addrconf_dad_begin+0x310/0x670 [ 1159.154645][ T254] addrconf_dad_work+0x10b/0xab0 [ 1159.154645][ T254] process_one_work+0x84d/0x18a0 [ 1159.154645][ T254] worker_thread+0x587/0xd30 [ 1159.154645][ T254] kthread+0x28a/0x350 [ 1159.154645][ T254] ret_from_fork+0x31/0x70 [ 1159.154645][ T254] ret_from_fork_asm+0x1a/0x30 [ 1159.154645][ T254] [ 1159.156820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.156820][ T254] netdev_get_by_index+0x5e/0x80 [ 1159.156820][ T254] fib6_nh_init+0x3d8/0x1580 [ 1159.156820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1159.156820][ T254] ip6_route_add+0x1c/0x140 [ 1159.156820][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1159.156820][ T254] inet6_addr_add+0x4f8/0xa40 [ 1159.156820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.156820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.156820][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.156820][ T254] netlink_unicast+0x449/0x710 [ 1159.156820][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.156820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.156820][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.156820][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.156820][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.156820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.156820][ T254] [ 1159.159110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.159110][ T254] netdev_get_by_index+0x5e/0x80 [ 1159.159110][ T254] fib6_nh_init+0x3d8/0x1580 [ 1159.159110][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1159.159110][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1159.159110][ T254] ipv6_add_addr+0x411/0x2000 [ 1159.159110][ T254] inet6_addr_add+0x30e/0xa40 [ 1159.159110][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.159110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.159110][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.159110][ T254] netlink_unicast+0x449/0x710 [ 1159.159110][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.159110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.159110][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.159110][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.159110][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.159110][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.159110][ T254] [ 1159.161395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.161395][ T254] netdev_get_by_index+0x5e/0x80 [ 1159.161395][ T254] fib6_nh_init+0x3d8/0x1580 [ 1159.161395][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1159.161395][ T254] ip6_route_add+0x1c/0x140 [ 1159.161395][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1159.161395][ T254] addrconf_add_dev+0xe2/0x170 [ 1159.161395][ T254] inet6_addr_add+0x12f/0xa40 [ 1159.161395][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1159.161395][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.161395][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.161395][ T254] netlink_unicast+0x449/0x710 [ 1159.161395][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.161395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.161395][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.161395][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.161395][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.161395][ T254] [ 1159.163617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.163617][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1159.163617][ T254] ipv6_find_idev+0x102/0x170 [ 1159.163617][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1159.163617][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.163617][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.163617][ T254] netlink_unicast+0x449/0x710 [ 1159.163617][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.163617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.163617][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.163617][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.163617][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.163617][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.163617][ T254] [ 1159.165372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1159.165372][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1159.165372][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1159.165372][ T254] ipv6_find_idev+0x102/0x170 [ 1159.165372][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1159.165372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1159.165372][ T254] netlink_rcv_skb+0x130/0x360 [ 1159.165372][ T254] netlink_unicast+0x449/0x710 [ 1159.165372][ T254] netlink_sendmsg+0x723/0xbe0 [ 1159.165372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1159.165372][ T254] ___sys_sendmsg+0xee/0x170 [ 1159.165372][ T254] __sys_sendmsg+0xcd/0x170 [ 1159.165372][ T254] do_syscall_64+0xc6/0x1e0 [ 1159.165372][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1159.165372][ T254] [ 1169.407864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1169.408410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.408410][ T254] dst_init+0x84/0x4a0 [ 1169.408410][ T254] dst_alloc+0x97/0x150 [ 1169.408410][ T254] ip6_dst_alloc+0x23/0x90 [ 1169.408410][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1169.408410][ T254] ip6_pol_route+0x56f/0x840 [ 1169.408410][ T254] fib6_rule_lookup+0x334/0x630 [ 1169.408410][ T254] ip6_route_output_flags+0x259/0x480 [ 1169.408410][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1169.408410][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1169.408410][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.408410][ T254] netlink_unicast+0x449/0x710 [ 1169.408410][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.408410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.408410][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.408410][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.408410][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.408410][ T254] [ 1169.410614][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.410614][ T254] netdev_get_by_index+0x5e/0x80 [ 1169.410614][ T254] fib6_nh_init+0x3d8/0x1580 [ 1169.410614][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1169.410614][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1169.410614][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1169.410614][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1169.410614][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1169.410614][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1169.410614][ T254] addrconf_dad_begin+0x310/0x670 [ 1169.410614][ T254] addrconf_dad_work+0x10b/0xab0 [ 1169.410614][ T254] process_one_work+0x84d/0x18a0 [ 1169.410614][ T254] worker_thread+0x587/0xd30 [ 1169.410614][ T254] kthread+0x28a/0x350 [ 1169.410614][ T254] ret_from_fork+0x31/0x70 [ 1169.410614][ T254] ret_from_fork_asm+0x1a/0x30 [ 1169.410614][ T254] [ 1169.412865][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.412865][ T254] netdev_get_by_index+0x5e/0x80 [ 1169.412865][ T254] fib6_nh_init+0x3d8/0x1580 [ 1169.412865][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1169.412865][ T254] ip6_route_add+0x1c/0x140 [ 1169.412865][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1169.412865][ T254] inet6_addr_add+0x4f8/0xa40 [ 1169.412865][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1169.412865][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1169.412865][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.412865][ T254] netlink_unicast+0x449/0x710 [ 1169.412865][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.412865][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.412865][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.412865][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.412865][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.412865][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1169.412865][ T254] [ 1169.415640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.415640][ T254] netdev_get_by_index+0x5e/0x80 [ 1169.415640][ T254] fib6_nh_init+0x3d8/0x1580 [ 1169.415640][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1169.415640][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1169.415640][ T254] ipv6_add_addr+0x411/0x2000 [ 1169.415640][ T254] inet6_addr_add+0x30e/0xa40 [ 1169.415640][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1169.415640][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1169.415640][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.415640][ T254] netlink_unicast+0x449/0x710 [ 1169.415640][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.415640][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.415640][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.415640][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.415640][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.415640][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1169.415640][ T254] [ 1169.418697][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.418697][ T254] netdev_get_by_index+0x5e/0x80 [ 1169.418697][ T254] fib6_nh_init+0x3d8/0x1580 [ 1169.418697][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1169.418697][ T254] ip6_route_add+0x1c/0x140 [ 1169.418697][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1169.418697][ T254] addrconf_add_dev+0xe2/0x170 [ 1169.418697][ T254] inet6_addr_add+0x12f/0xa40 [ 1169.418697][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1169.418697][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1169.418697][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.418697][ T254] netlink_unicast+0x449/0x710 [ 1169.418697][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.418697][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.418697][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.418697][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.418697][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.418697][ T254] [ 1169.421698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.421698][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1169.421698][ T254] ipv6_find_idev+0x102/0x170 [ 1169.421698][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1169.421698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1169.421698][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.421698][ T254] netlink_unicast+0x449/0x710 [ 1169.421698][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.421698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.421698][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.421698][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.421698][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.421698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1169.421698][ T254] [ 1169.424020][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1169.424020][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1169.424020][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1169.424020][ T254] ipv6_find_idev+0x102/0x170 [ 1169.424020][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1169.424020][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1169.424020][ T254] netlink_rcv_skb+0x130/0x360 [ 1169.424020][ T254] netlink_unicast+0x449/0x710 [ 1169.424020][ T254] netlink_sendmsg+0x723/0xbe0 [ 1169.424020][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1169.424020][ T254] ___sys_sendmsg+0xee/0x170 [ 1169.424020][ T254] __sys_sendmsg+0xcd/0x170 [ 1169.424020][ T254] do_syscall_64+0xc6/0x1e0 [ 1169.424020][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1169.424020][ T254] [ 1179.663833][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1179.664382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.664382][ T254] dst_init+0x84/0x4a0 [ 1179.664382][ T254] dst_alloc+0x97/0x150 [ 1179.664382][ T254] ip6_dst_alloc+0x23/0x90 [ 1179.664382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1179.664382][ T254] ip6_pol_route+0x56f/0x840 [ 1179.664382][ T254] fib6_rule_lookup+0x334/0x630 [ 1179.664382][ T254] ip6_route_output_flags+0x259/0x480 [ 1179.664382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1179.664382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1179.664382][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.664382][ T254] netlink_unicast+0x449/0x710 [ 1179.664382][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.664382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.664382][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.664382][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.664382][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.664382][ T254] [ 1179.666629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.666629][ T254] netdev_get_by_index+0x5e/0x80 [ 1179.666629][ T254] fib6_nh_init+0x3d8/0x1580 [ 1179.666629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1179.666629][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1179.666629][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1179.666629][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1179.666629][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1179.666629][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1179.666629][ T254] addrconf_dad_begin+0x310/0x670 [ 1179.666629][ T254] addrconf_dad_work+0x10b/0xab0 [ 1179.666629][ T254] process_one_work+0x84d/0x18a0 [ 1179.666629][ T254] worker_thread+0x587/0xd30 [ 1179.666629][ T254] kthread+0x28a/0x350 [ 1179.666629][ T254] ret_from_fork+0x31/0x70 [ 1179.666629][ T254] ret_from_fork_asm+0x1a/0x30 [ 1179.666629][ T254] [ 1179.668809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.668809][ T254] netdev_get_by_index+0x5e/0x80 [ 1179.668809][ T254] fib6_nh_init+0x3d8/0x1580 [ 1179.668809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1179.668809][ T254] ip6_route_add+0x1c/0x140 [ 1179.668809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1179.668809][ T254] inet6_addr_add+0x4f8/0xa40 [ 1179.668809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1179.668809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1179.668809][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.668809][ T254] netlink_unicast+0x449/0x710 [ 1179.668809][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.668809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.668809][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.668809][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.668809][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.668809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1179.668809][ T254] [ 1179.671070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.671070][ T254] netdev_get_by_index+0x5e/0x80 [ 1179.671070][ T254] fib6_nh_init+0x3d8/0x1580 [ 1179.671070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1179.671070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1179.671070][ T254] ipv6_add_addr+0x411/0x2000 [ 1179.671070][ T254] inet6_addr_add+0x30e/0xa40 [ 1179.671070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1179.671070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1179.671070][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.671070][ T254] netlink_unicast+0x449/0x710 [ 1179.671070][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.671070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.671070][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.671070][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.671070][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.671070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1179.671070][ T254] [ 1179.673365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.673365][ T254] netdev_get_by_index+0x5e/0x80 [ 1179.673365][ T254] fib6_nh_init+0x3d8/0x1580 [ 1179.673365][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1179.673365][ T254] ip6_route_add+0x1c/0x140 [ 1179.673365][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1179.673365][ T254] addrconf_add_dev+0xe2/0x170 [ 1179.673365][ T254] inet6_addr_add+0x12f/0xa40 [ 1179.673365][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1179.673365][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1179.673365][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.673365][ T254] netlink_unicast+0x449/0x710 [ 1179.673365][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.673365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.673365][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.673365][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.673365][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.673365][ T254] [ 1179.675610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.675610][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1179.675610][ T254] ipv6_find_idev+0x102/0x170 [ 1179.675610][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1179.675610][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1179.675610][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.675610][ T254] netlink_unicast+0x449/0x710 [ 1179.675610][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.675610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.675610][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.675610][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.675610][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.675610][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1179.675610][ T254] [ 1179.677643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1179.677643][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1179.677643][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1179.677643][ T254] ipv6_find_idev+0x102/0x170 [ 1179.677643][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1179.677643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1179.677643][ T254] netlink_rcv_skb+0x130/0x360 [ 1179.677643][ T254] netlink_unicast+0x449/0x710 [ 1179.677643][ T254] netlink_sendmsg+0x723/0xbe0 [ 1179.677643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1179.677643][ T254] ___sys_sendmsg+0xee/0x170 [ 1179.677643][ T254] __sys_sendmsg+0xcd/0x170 [ 1179.677643][ T254] do_syscall_64+0xc6/0x1e0 [ 1179.677643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1179.677643][ T254] [ 1189.919819][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1189.920377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.920377][ T254] dst_init+0x84/0x4a0 [ 1189.920377][ T254] dst_alloc+0x97/0x150 [ 1189.920377][ T254] ip6_dst_alloc+0x23/0x90 [ 1189.920377][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1189.920377][ T254] ip6_pol_route+0x56f/0x840 [ 1189.920377][ T254] fib6_rule_lookup+0x334/0x630 [ 1189.920377][ T254] ip6_route_output_flags+0x259/0x480 [ 1189.920377][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1189.920377][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1189.920377][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.920377][ T254] netlink_unicast+0x449/0x710 [ 1189.920377][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.920377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.920377][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.920377][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.920377][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.920377][ T254] [ 1189.922814][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.922814][ T254] netdev_get_by_index+0x5e/0x80 [ 1189.922814][ T254] fib6_nh_init+0x3d8/0x1580 [ 1189.922814][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1189.922814][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1189.922814][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1189.922814][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1189.922814][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1189.922814][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1189.922814][ T254] addrconf_dad_begin+0x310/0x670 [ 1189.922814][ T254] addrconf_dad_work+0x10b/0xab0 [ 1189.922814][ T254] process_one_work+0x84d/0x18a0 [ 1189.922814][ T254] worker_thread+0x587/0xd30 [ 1189.922814][ T254] kthread+0x28a/0x350 [ 1189.922814][ T254] ret_from_fork+0x31/0x70 [ 1189.922814][ T254] ret_from_fork_asm+0x1a/0x30 [ 1189.922814][ T254] [ 1189.926346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.926346][ T254] netdev_get_by_index+0x5e/0x80 [ 1189.926346][ T254] fib6_nh_init+0x3d8/0x1580 [ 1189.926346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1189.926346][ T254] ip6_route_add+0x1c/0x140 [ 1189.926346][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1189.926346][ T254] inet6_addr_add+0x4f8/0xa40 [ 1189.926346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1189.926346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1189.926346][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.926346][ T254] netlink_unicast+0x449/0x710 [ 1189.926346][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.926346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.926346][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.926346][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.926346][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.926346][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1189.926346][ T254] [ 1189.929306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.929306][ T254] netdev_get_by_index+0x5e/0x80 [ 1189.929306][ T254] fib6_nh_init+0x3d8/0x1580 [ 1189.929306][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1189.929306][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1189.929306][ T254] ipv6_add_addr+0x411/0x2000 [ 1189.929306][ T254] inet6_addr_add+0x30e/0xa40 [ 1189.929306][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1189.929306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1189.929306][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.929306][ T254] netlink_unicast+0x449/0x710 [ 1189.929306][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.929306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.929306][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.929306][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.929306][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.929306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1189.929306][ T254] [ 1189.931636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.931636][ T254] netdev_get_by_index+0x5e/0x80 [ 1189.931636][ T254] fib6_nh_init+0x3d8/0x1580 [ 1189.931636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1189.931636][ T254] ip6_route_add+0x1c/0x140 [ 1189.931636][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1189.931636][ T254] addrconf_add_dev+0xe2/0x170 [ 1189.931636][ T254] inet6_addr_add+0x12f/0xa40 [ 1189.931636][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1189.931636][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1189.931636][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.931636][ T254] netlink_unicast+0x449/0x710 [ 1189.931636][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.931636][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.931636][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.931636][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.931636][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.931636][ T254] [ 1189.934157][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.934157][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1189.934157][ T254] ipv6_find_idev+0x102/0x170 [ 1189.934157][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1189.934157][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1189.934157][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.934157][ T254] netlink_unicast+0x449/0x710 [ 1189.934157][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.934157][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.934157][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.934157][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.934157][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.934157][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1189.934157][ T254] [ 1189.936337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1189.936337][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1189.936337][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1189.936337][ T254] ipv6_find_idev+0x102/0x170 [ 1189.936337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1189.936337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1189.936337][ T254] netlink_rcv_skb+0x130/0x360 [ 1189.936337][ T254] netlink_unicast+0x449/0x710 [ 1189.936337][ T254] netlink_sendmsg+0x723/0xbe0 [ 1189.936337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1189.936337][ T254] ___sys_sendmsg+0xee/0x170 [ 1189.936337][ T254] __sys_sendmsg+0xcd/0x170 [ 1189.936337][ T254] do_syscall_64+0xc6/0x1e0 [ 1189.936337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1189.936337][ T254] [ 1200.175855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1200.176351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.176351][ T254] dst_init+0x84/0x4a0 [ 1200.176351][ T254] dst_alloc+0x97/0x150 [ 1200.176351][ T254] ip6_dst_alloc+0x23/0x90 [ 1200.176351][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1200.176351][ T254] ip6_pol_route+0x56f/0x840 [ 1200.176351][ T254] fib6_rule_lookup+0x334/0x630 [ 1200.176351][ T254] ip6_route_output_flags+0x259/0x480 [ 1200.176351][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1200.176351][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1200.176351][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.176351][ T254] netlink_unicast+0x449/0x710 [ 1200.176351][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.176351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.176351][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.176351][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.176351][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.176351][ T254] [ 1200.178574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.178574][ T254] netdev_get_by_index+0x5e/0x80 [ 1200.178574][ T254] fib6_nh_init+0x3d8/0x1580 [ 1200.178574][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1200.178574][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1200.178574][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1200.178574][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1200.178574][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1200.178574][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1200.178574][ T254] addrconf_dad_begin+0x310/0x670 [ 1200.178574][ T254] addrconf_dad_work+0x10b/0xab0 [ 1200.178574][ T254] process_one_work+0x84d/0x18a0 [ 1200.178574][ T254] worker_thread+0x587/0xd30 [ 1200.178574][ T254] kthread+0x28a/0x350 [ 1200.178574][ T254] ret_from_fork+0x31/0x70 [ 1200.178574][ T254] ret_from_fork_asm+0x1a/0x30 [ 1200.178574][ T254] [ 1200.180750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.180750][ T254] netdev_get_by_index+0x5e/0x80 [ 1200.180750][ T254] fib6_nh_init+0x3d8/0x1580 [ 1200.180750][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1200.180750][ T254] ip6_route_add+0x1c/0x140 [ 1200.180750][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1200.180750][ T254] inet6_addr_add+0x4f8/0xa40 [ 1200.180750][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.180750][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.180750][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.180750][ T254] netlink_unicast+0x449/0x710 [ 1200.180750][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.180750][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.180750][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.180750][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.180750][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.180750][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.180750][ T254] [ 1200.183038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.183038][ T254] netdev_get_by_index+0x5e/0x80 [ 1200.183038][ T254] fib6_nh_init+0x3d8/0x1580 [ 1200.183038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1200.183038][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1200.183038][ T254] ipv6_add_addr+0x411/0x2000 [ 1200.183038][ T254] inet6_addr_add+0x30e/0xa40 [ 1200.183038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.183038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.183038][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.183038][ T254] netlink_unicast+0x449/0x710 [ 1200.183038][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.183038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.183038][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.183038][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.183038][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.183038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.183038][ T254] [ 1200.185309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.185309][ T254] netdev_get_by_index+0x5e/0x80 [ 1200.185309][ T254] fib6_nh_init+0x3d8/0x1580 [ 1200.185309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1200.185309][ T254] ip6_route_add+0x1c/0x140 [ 1200.185309][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1200.185309][ T254] addrconf_add_dev+0xe2/0x170 [ 1200.185309][ T254] inet6_addr_add+0x12f/0xa40 [ 1200.185309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1200.185309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.185309][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.185309][ T254] netlink_unicast+0x449/0x710 [ 1200.185309][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.185309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.185309][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.185309][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.185309][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.185309][ T254] [ 1200.187531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.187531][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1200.187531][ T254] ipv6_find_idev+0x102/0x170 [ 1200.187531][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1200.187531][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.187531][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.187531][ T254] netlink_unicast+0x449/0x710 [ 1200.187531][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.187531][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.187531][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.187531][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.187531][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.187531][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.187531][ T254] [ 1200.189321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1200.189321][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1200.189321][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1200.189321][ T254] ipv6_find_idev+0x102/0x170 [ 1200.189321][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1200.189321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1200.189321][ T254] netlink_rcv_skb+0x130/0x360 [ 1200.189321][ T254] netlink_unicast+0x449/0x710 [ 1200.189321][ T254] netlink_sendmsg+0x723/0xbe0 [ 1200.189321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1200.189321][ T254] ___sys_sendmsg+0xee/0x170 [ 1200.189321][ T254] __sys_sendmsg+0xcd/0x170 [ 1200.189321][ T254] do_syscall_64+0xc6/0x1e0 [ 1200.189321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1200.189321][ T254] [ 1210.431808][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1210.432368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.432368][ T254] dst_init+0x84/0x4a0 [ 1210.432368][ T254] dst_alloc+0x97/0x150 [ 1210.432368][ T254] ip6_dst_alloc+0x23/0x90 [ 1210.432368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1210.432368][ T254] ip6_pol_route+0x56f/0x840 [ 1210.432368][ T254] fib6_rule_lookup+0x334/0x630 [ 1210.432368][ T254] ip6_route_output_flags+0x259/0x480 [ 1210.432368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1210.432368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1210.432368][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.432368][ T254] netlink_unicast+0x449/0x710 [ 1210.432368][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.432368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.432368][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.432368][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.432368][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.432368][ T254] [ 1210.434989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.434989][ T254] netdev_get_by_index+0x5e/0x80 [ 1210.434989][ T254] fib6_nh_init+0x3d8/0x1580 [ 1210.434989][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1210.434989][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1210.434989][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1210.434989][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1210.434989][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1210.434989][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1210.434989][ T254] addrconf_dad_begin+0x310/0x670 [ 1210.434989][ T254] addrconf_dad_work+0x10b/0xab0 [ 1210.434989][ T254] process_one_work+0x84d/0x18a0 [ 1210.434989][ T254] worker_thread+0x587/0xd30 [ 1210.434989][ T254] kthread+0x28a/0x350 [ 1210.434989][ T254] ret_from_fork+0x31/0x70 [ 1210.434989][ T254] ret_from_fork_asm+0x1a/0x30 [ 1210.434989][ T254] [ 1210.437945][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.437945][ T254] netdev_get_by_index+0x5e/0x80 [ 1210.437945][ T254] fib6_nh_init+0x3d8/0x1580 [ 1210.437945][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1210.437945][ T254] ip6_route_add+0x1c/0x140 [ 1210.437945][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1210.437945][ T254] inet6_addr_add+0x4f8/0xa40 [ 1210.437945][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.437945][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.437945][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.437945][ T254] netlink_unicast+0x449/0x710 [ 1210.437945][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.437945][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.437945][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.437945][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.437945][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.437945][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.437945][ T254] [ 1210.440863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.440863][ T254] netdev_get_by_index+0x5e/0x80 [ 1210.440863][ T254] fib6_nh_init+0x3d8/0x1580 [ 1210.440863][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1210.440863][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1210.440863][ T254] ipv6_add_addr+0x411/0x2000 [ 1210.440863][ T254] inet6_addr_add+0x30e/0xa40 [ 1210.440863][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.440863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.440863][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.440863][ T254] netlink_unicast+0x449/0x710 [ 1210.440863][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.440863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.440863][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.440863][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.440863][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.440863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.440863][ T254] [ 1210.443135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.443135][ T254] netdev_get_by_index+0x5e/0x80 [ 1210.443135][ T254] fib6_nh_init+0x3d8/0x1580 [ 1210.443135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1210.443135][ T254] ip6_route_add+0x1c/0x140 [ 1210.443135][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1210.443135][ T254] addrconf_add_dev+0xe2/0x170 [ 1210.443135][ T254] inet6_addr_add+0x12f/0xa40 [ 1210.443135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1210.443135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.443135][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.443135][ T254] netlink_unicast+0x449/0x710 [ 1210.443135][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.443135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.443135][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.443135][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.443135][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.443135][ T254] [ 1210.445372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.445372][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1210.445372][ T254] ipv6_find_idev+0x102/0x170 [ 1210.445372][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1210.445372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.445372][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.445372][ T254] netlink_unicast+0x449/0x710 [ 1210.445372][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.445372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.445372][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.445372][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.445372][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.445372][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.445372][ T254] [ 1210.447116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1210.447116][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1210.447116][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1210.447116][ T254] ipv6_find_idev+0x102/0x170 [ 1210.447116][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1210.447116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1210.447116][ T254] netlink_rcv_skb+0x130/0x360 [ 1210.447116][ T254] netlink_unicast+0x449/0x710 [ 1210.447116][ T254] netlink_sendmsg+0x723/0xbe0 [ 1210.447116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1210.447116][ T254] ___sys_sendmsg+0xee/0x170 [ 1210.447116][ T254] __sys_sendmsg+0xcd/0x170 [ 1210.447116][ T254] do_syscall_64+0xc6/0x1e0 [ 1210.447116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1210.447116][ T254] [ 1220.687867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1220.688348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.688348][ T254] dst_init+0x84/0x4a0 [ 1220.688348][ T254] dst_alloc+0x97/0x150 [ 1220.688348][ T254] ip6_dst_alloc+0x23/0x90 [ 1220.688348][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1220.688348][ T254] ip6_pol_route+0x56f/0x840 [ 1220.688348][ T254] fib6_rule_lookup+0x334/0x630 [ 1220.688348][ T254] ip6_route_output_flags+0x259/0x480 [ 1220.688348][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1220.688348][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1220.688348][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.688348][ T254] netlink_unicast+0x449/0x710 [ 1220.688348][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.688348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.688348][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.688348][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.688348][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.688348][ T254] [ 1220.690572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.690572][ T254] netdev_get_by_index+0x5e/0x80 [ 1220.690572][ T254] fib6_nh_init+0x3d8/0x1580 [ 1220.690572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1220.690572][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1220.690572][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1220.690572][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1220.690572][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1220.690572][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1220.690572][ T254] addrconf_dad_begin+0x310/0x670 [ 1220.690572][ T254] addrconf_dad_work+0x10b/0xab0 [ 1220.690572][ T254] process_one_work+0x84d/0x18a0 [ 1220.690572][ T254] worker_thread+0x587/0xd30 [ 1220.690572][ T254] kthread+0x28a/0x350 [ 1220.690572][ T254] ret_from_fork+0x31/0x70 [ 1220.690572][ T254] ret_from_fork_asm+0x1a/0x30 [ 1220.690572][ T254] [ 1220.692738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.692738][ T254] netdev_get_by_index+0x5e/0x80 [ 1220.692738][ T254] fib6_nh_init+0x3d8/0x1580 [ 1220.692738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1220.692738][ T254] ip6_route_add+0x1c/0x140 [ 1220.692738][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1220.692738][ T254] inet6_addr_add+0x4f8/0xa40 [ 1220.692738][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1220.692738][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1220.692738][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.692738][ T254] netlink_unicast+0x449/0x710 [ 1220.692738][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.692738][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.692738][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.692738][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.692738][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.692738][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1220.692738][ T254] [ 1220.694990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.694990][ T254] netdev_get_by_index+0x5e/0x80 [ 1220.694990][ T254] fib6_nh_init+0x3d8/0x1580 [ 1220.694990][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1220.694990][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1220.694990][ T254] ipv6_add_addr+0x411/0x2000 [ 1220.694990][ T254] inet6_addr_add+0x30e/0xa40 [ 1220.694990][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1220.694990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1220.694990][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.694990][ T254] netlink_unicast+0x449/0x710 [ 1220.694990][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.694990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.694990][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.694990][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.694990][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.694990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1220.694990][ T254] [ 1220.697229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.697229][ T254] netdev_get_by_index+0x5e/0x80 [ 1220.697229][ T254] fib6_nh_init+0x3d8/0x1580 [ 1220.697229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1220.697229][ T254] ip6_route_add+0x1c/0x140 [ 1220.697229][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1220.697229][ T254] addrconf_add_dev+0xe2/0x170 [ 1220.697229][ T254] inet6_addr_add+0x12f/0xa40 [ 1220.697229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1220.697229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1220.697229][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.697229][ T254] netlink_unicast+0x449/0x710 [ 1220.697229][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.697229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.697229][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.697229][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.697229][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.697229][ T254] [ 1220.699432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.699432][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1220.699432][ T254] ipv6_find_idev+0x102/0x170 [ 1220.699432][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1220.699432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1220.699432][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.699432][ T254] netlink_unicast+0x449/0x710 [ 1220.699432][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.699432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.699432][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.699432][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.699432][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.699432][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1220.699432][ T254] [ 1220.701162][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1220.701162][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1220.701162][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1220.701162][ T254] ipv6_find_idev+0x102/0x170 [ 1220.701162][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1220.701162][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1220.701162][ T254] netlink_rcv_skb+0x130/0x360 [ 1220.701162][ T254] netlink_unicast+0x449/0x710 [ 1220.701162][ T254] netlink_sendmsg+0x723/0xbe0 [ 1220.701162][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1220.701162][ T254] ___sys_sendmsg+0xee/0x170 [ 1220.701162][ T254] __sys_sendmsg+0xcd/0x170 [ 1220.701162][ T254] do_syscall_64+0xc6/0x1e0 [ 1220.701162][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1220.701162][ T254] [ 1230.863896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1230.864420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.864420][ T254] dst_init+0x84/0x4a0 [ 1230.864420][ T254] dst_alloc+0x97/0x150 [ 1230.864420][ T254] ip6_dst_alloc+0x23/0x90 [ 1230.864420][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1230.864420][ T254] ip6_pol_route+0x56f/0x840 [ 1230.864420][ T254] fib6_rule_lookup+0x334/0x630 [ 1230.864420][ T254] ip6_route_output_flags+0x259/0x480 [ 1230.864420][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1230.864420][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1230.864420][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.864420][ T254] netlink_unicast+0x449/0x710 [ 1230.864420][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.864420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.864420][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.864420][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.864420][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.864420][ T254] [ 1230.866629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.866629][ T254] netdev_get_by_index+0x5e/0x80 [ 1230.866629][ T254] fib6_nh_init+0x3d8/0x1580 [ 1230.866629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1230.866629][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1230.866629][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1230.866629][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1230.866629][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1230.866629][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1230.866629][ T254] addrconf_dad_begin+0x310/0x670 [ 1230.866629][ T254] addrconf_dad_work+0x10b/0xab0 [ 1230.866629][ T254] process_one_work+0x84d/0x18a0 [ 1230.866629][ T254] worker_thread+0x587/0xd30 [ 1230.866629][ T254] kthread+0x28a/0x350 [ 1230.866629][ T254] ret_from_fork+0x31/0x70 [ 1230.866629][ T254] ret_from_fork_asm+0x1a/0x30 [ 1230.866629][ T254] [ 1230.868781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.868781][ T254] netdev_get_by_index+0x5e/0x80 [ 1230.868781][ T254] fib6_nh_init+0x3d8/0x1580 [ 1230.868781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1230.868781][ T254] ip6_route_add+0x1c/0x140 [ 1230.868781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1230.868781][ T254] inet6_addr_add+0x4f8/0xa40 [ 1230.868781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1230.868781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1230.868781][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.868781][ T254] netlink_unicast+0x449/0x710 [ 1230.868781][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.868781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.868781][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.868781][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.868781][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.868781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1230.868781][ T254] [ 1230.871069][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.871069][ T254] netdev_get_by_index+0x5e/0x80 [ 1230.871069][ T254] fib6_nh_init+0x3d8/0x1580 [ 1230.871069][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1230.871069][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1230.871069][ T254] ipv6_add_addr+0x411/0x2000 [ 1230.871069][ T254] inet6_addr_add+0x30e/0xa40 [ 1230.871069][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1230.871069][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1230.871069][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.871069][ T254] netlink_unicast+0x449/0x710 [ 1230.871069][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.871069][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.871069][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.871069][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.871069][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.871069][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1230.871069][ T254] [ 1230.873338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.873338][ T254] netdev_get_by_index+0x5e/0x80 [ 1230.873338][ T254] fib6_nh_init+0x3d8/0x1580 [ 1230.873338][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1230.873338][ T254] ip6_route_add+0x1c/0x140 [ 1230.873338][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1230.873338][ T254] addrconf_add_dev+0xe2/0x170 [ 1230.873338][ T254] inet6_addr_add+0x12f/0xa40 [ 1230.873338][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1230.873338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1230.873338][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.873338][ T254] netlink_unicast+0x449/0x710 [ 1230.873338][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.873338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.873338][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.873338][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.873338][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.873338][ T254] [ 1230.875533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.875533][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1230.875533][ T254] ipv6_find_idev+0x102/0x170 [ 1230.875533][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1230.875533][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1230.875533][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.875533][ T254] netlink_unicast+0x449/0x710 [ 1230.875533][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.875533][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.875533][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.875533][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.875533][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.875533][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1230.875533][ T254] [ 1230.877257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1230.877257][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1230.877257][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1230.877257][ T254] ipv6_find_idev+0x102/0x170 [ 1230.877257][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1230.877257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1230.877257][ T254] netlink_rcv_skb+0x130/0x360 [ 1230.877257][ T254] netlink_unicast+0x449/0x710 [ 1230.877257][ T254] netlink_sendmsg+0x723/0xbe0 [ 1230.877257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1230.877257][ T254] ___sys_sendmsg+0xee/0x170 [ 1230.877257][ T254] __sys_sendmsg+0xcd/0x170 [ 1230.877257][ T254] do_syscall_64+0xc6/0x1e0 [ 1230.877257][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1230.877257][ T254] [ 1241.119878][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1241.120347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.120347][ T254] dst_init+0x84/0x4a0 [ 1241.120347][ T254] dst_alloc+0x97/0x150 [ 1241.120347][ T254] ip6_dst_alloc+0x23/0x90 [ 1241.120347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1241.120347][ T254] ip6_pol_route+0x56f/0x840 [ 1241.120347][ T254] fib6_rule_lookup+0x334/0x630 [ 1241.120347][ T254] ip6_route_output_flags+0x259/0x480 [ 1241.120347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1241.120347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1241.120347][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.120347][ T254] netlink_unicast+0x449/0x710 [ 1241.120347][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.120347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.120347][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.120347][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.120347][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.120347][ T254] [ 1241.122572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.122572][ T254] netdev_get_by_index+0x5e/0x80 [ 1241.122572][ T254] fib6_nh_init+0x3d8/0x1580 [ 1241.122572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1241.122572][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1241.122572][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1241.122572][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1241.122572][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1241.122572][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1241.122572][ T254] addrconf_dad_begin+0x310/0x670 [ 1241.122572][ T254] addrconf_dad_work+0x10b/0xab0 [ 1241.122572][ T254] process_one_work+0x84d/0x18a0 [ 1241.122572][ T254] worker_thread+0x587/0xd30 [ 1241.122572][ T254] kthread+0x28a/0x350 [ 1241.122572][ T254] ret_from_fork+0x31/0x70 [ 1241.122572][ T254] ret_from_fork_asm+0x1a/0x30 [ 1241.122572][ T254] [ 1241.124718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.124718][ T254] netdev_get_by_index+0x5e/0x80 [ 1241.124718][ T254] fib6_nh_init+0x3d8/0x1580 [ 1241.124718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1241.124718][ T254] ip6_route_add+0x1c/0x140 [ 1241.124718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1241.124718][ T254] inet6_addr_add+0x4f8/0xa40 [ 1241.124718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.124718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.124718][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.124718][ T254] netlink_unicast+0x449/0x710 [ 1241.124718][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.124718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.124718][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.124718][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.124718][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.124718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.124718][ T254] [ 1241.126976][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.126976][ T254] netdev_get_by_index+0x5e/0x80 [ 1241.126976][ T254] fib6_nh_init+0x3d8/0x1580 [ 1241.126976][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1241.126976][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1241.126976][ T254] ipv6_add_addr+0x411/0x2000 [ 1241.126976][ T254] inet6_addr_add+0x30e/0xa40 [ 1241.126976][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.126976][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.126976][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.126976][ T254] netlink_unicast+0x449/0x710 [ 1241.126976][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.126976][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.126976][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.126976][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.126976][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.126976][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.126976][ T254] [ 1241.129218][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.129218][ T254] netdev_get_by_index+0x5e/0x80 [ 1241.129218][ T254] fib6_nh_init+0x3d8/0x1580 [ 1241.129218][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1241.129218][ T254] ip6_route_add+0x1c/0x140 [ 1241.129218][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1241.129218][ T254] addrconf_add_dev+0xe2/0x170 [ 1241.129218][ T254] inet6_addr_add+0x12f/0xa40 [ 1241.129218][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1241.129218][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.129218][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.129218][ T254] netlink_unicast+0x449/0x710 [ 1241.129218][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.129218][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.129218][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.129218][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.129218][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.129218][ T254] [ 1241.131441][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.131441][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1241.131441][ T254] ipv6_find_idev+0x102/0x170 [ 1241.131441][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1241.131441][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.131441][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.131441][ T254] netlink_unicast+0x449/0x710 [ 1241.131441][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.131441][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.131441][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.131441][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.131441][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.131441][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.131441][ T254] [ 1241.133158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1241.133158][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1241.133158][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1241.133158][ T254] ipv6_find_idev+0x102/0x170 [ 1241.133158][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1241.133158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1241.133158][ T254] netlink_rcv_skb+0x130/0x360 [ 1241.133158][ T254] netlink_unicast+0x449/0x710 [ 1241.133158][ T254] netlink_sendmsg+0x723/0xbe0 [ 1241.133158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1241.133158][ T254] ___sys_sendmsg+0xee/0x170 [ 1241.133158][ T254] __sys_sendmsg+0xcd/0x170 [ 1241.133158][ T254] do_syscall_64+0xc6/0x1e0 [ 1241.133158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1241.133158][ T254] [ 1251.375852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1251.376323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.376323][ T254] dst_init+0x84/0x4a0 [ 1251.376323][ T254] dst_alloc+0x97/0x150 [ 1251.376323][ T254] ip6_dst_alloc+0x23/0x90 [ 1251.376323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1251.376323][ T254] ip6_pol_route+0x56f/0x840 [ 1251.376323][ T254] fib6_rule_lookup+0x334/0x630 [ 1251.376323][ T254] ip6_route_output_flags+0x259/0x480 [ 1251.376323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1251.376323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1251.376323][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.376323][ T254] netlink_unicast+0x449/0x710 [ 1251.376323][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.376323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.376323][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.376323][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.376323][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.376323][ T254] [ 1251.378522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.378522][ T254] netdev_get_by_index+0x5e/0x80 [ 1251.378522][ T254] fib6_nh_init+0x3d8/0x1580 [ 1251.378522][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1251.378522][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1251.378522][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1251.378522][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1251.378522][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1251.378522][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1251.378522][ T254] addrconf_dad_begin+0x310/0x670 [ 1251.378522][ T254] addrconf_dad_work+0x10b/0xab0 [ 1251.378522][ T254] process_one_work+0x84d/0x18a0 [ 1251.378522][ T254] worker_thread+0x587/0xd30 [ 1251.378522][ T254] kthread+0x28a/0x350 [ 1251.378522][ T254] ret_from_fork+0x31/0x70 [ 1251.378522][ T254] ret_from_fork_asm+0x1a/0x30 [ 1251.378522][ T254] [ 1251.380664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.380664][ T254] netdev_get_by_index+0x5e/0x80 [ 1251.380664][ T254] fib6_nh_init+0x3d8/0x1580 [ 1251.380664][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1251.380664][ T254] ip6_route_add+0x1c/0x140 [ 1251.380664][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1251.380664][ T254] inet6_addr_add+0x4f8/0xa40 [ 1251.380664][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.380664][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.380664][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.380664][ T254] netlink_unicast+0x449/0x710 [ 1251.380664][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.380664][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.380664][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.380664][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.380664][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.380664][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.380664][ T254] [ 1251.382927][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.382927][ T254] netdev_get_by_index+0x5e/0x80 [ 1251.382927][ T254] fib6_nh_init+0x3d8/0x1580 [ 1251.382927][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1251.382927][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1251.382927][ T254] ipv6_add_addr+0x411/0x2000 [ 1251.382927][ T254] inet6_addr_add+0x30e/0xa40 [ 1251.382927][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.382927][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.382927][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.382927][ T254] netlink_unicast+0x449/0x710 [ 1251.382927][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.382927][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.382927][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.382927][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.382927][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.382927][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.382927][ T254] [ 1251.385179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.385179][ T254] netdev_get_by_index+0x5e/0x80 [ 1251.385179][ T254] fib6_nh_init+0x3d8/0x1580 [ 1251.385179][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1251.385179][ T254] ip6_route_add+0x1c/0x140 [ 1251.385179][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1251.385179][ T254] addrconf_add_dev+0xe2/0x170 [ 1251.385179][ T254] inet6_addr_add+0x12f/0xa40 [ 1251.385179][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1251.385179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.385179][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.385179][ T254] netlink_unicast+0x449/0x710 [ 1251.385179][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.385179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.385179][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.385179][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.385179][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.385179][ T254] [ 1251.387381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.387381][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1251.387381][ T254] ipv6_find_idev+0x102/0x170 [ 1251.387381][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1251.387381][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.387381][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.387381][ T254] netlink_unicast+0x449/0x710 [ 1251.387381][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.387381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.387381][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.387381][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.387381][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.387381][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.387381][ T254] [ 1251.389408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1251.389408][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1251.389408][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1251.389408][ T254] ipv6_find_idev+0x102/0x170 [ 1251.389408][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1251.389408][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1251.389408][ T254] netlink_rcv_skb+0x130/0x360 [ 1251.389408][ T254] netlink_unicast+0x449/0x710 [ 1251.389408][ T254] netlink_sendmsg+0x723/0xbe0 [ 1251.389408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1251.389408][ T254] ___sys_sendmsg+0xee/0x170 [ 1251.389408][ T254] __sys_sendmsg+0xcd/0x170 [ 1251.389408][ T254] do_syscall_64+0xc6/0x1e0 [ 1251.389408][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1251.389408][ T254] [ 1261.631859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1261.632318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.632318][ T254] dst_init+0x84/0x4a0 [ 1261.632318][ T254] dst_alloc+0x97/0x150 [ 1261.632318][ T254] ip6_dst_alloc+0x23/0x90 [ 1261.632318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1261.632318][ T254] ip6_pol_route+0x56f/0x840 [ 1261.632318][ T254] fib6_rule_lookup+0x334/0x630 [ 1261.632318][ T254] ip6_route_output_flags+0x259/0x480 [ 1261.632318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1261.632318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1261.632318][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.632318][ T254] netlink_unicast+0x449/0x710 [ 1261.632318][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.632318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.632318][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.632318][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.632318][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.632318][ T254] [ 1261.634549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.634549][ T254] netdev_get_by_index+0x5e/0x80 [ 1261.634549][ T254] fib6_nh_init+0x3d8/0x1580 [ 1261.634549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1261.634549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1261.634549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1261.634549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1261.634549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1261.634549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1261.634549][ T254] addrconf_dad_begin+0x310/0x670 [ 1261.634549][ T254] addrconf_dad_work+0x10b/0xab0 [ 1261.634549][ T254] process_one_work+0x84d/0x18a0 [ 1261.634549][ T254] worker_thread+0x587/0xd30 [ 1261.634549][ T254] kthread+0x28a/0x350 [ 1261.634549][ T254] ret_from_fork+0x31/0x70 [ 1261.634549][ T254] ret_from_fork_asm+0x1a/0x30 [ 1261.634549][ T254] [ 1261.636715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.636715][ T254] netdev_get_by_index+0x5e/0x80 [ 1261.636715][ T254] fib6_nh_init+0x3d8/0x1580 [ 1261.636715][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1261.636715][ T254] ip6_route_add+0x1c/0x140 [ 1261.636715][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1261.636715][ T254] inet6_addr_add+0x4f8/0xa40 [ 1261.636715][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1261.636715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1261.636715][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.636715][ T254] netlink_unicast+0x449/0x710 [ 1261.636715][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.636715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.636715][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.636715][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.636715][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.636715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1261.636715][ T254] [ 1261.639216][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.639216][ T254] netdev_get_by_index+0x5e/0x80 [ 1261.639216][ T254] fib6_nh_init+0x3d8/0x1580 [ 1261.639216][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1261.639216][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1261.639216][ T254] ipv6_add_addr+0x411/0x2000 [ 1261.639216][ T254] inet6_addr_add+0x30e/0xa40 [ 1261.639216][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1261.639216][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1261.639216][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.639216][ T254] netlink_unicast+0x449/0x710 [ 1261.639216][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.639216][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.639216][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.639216][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.639216][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.639216][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1261.639216][ T254] [ 1261.642326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.642326][ T254] netdev_get_by_index+0x5e/0x80 [ 1261.642326][ T254] fib6_nh_init+0x3d8/0x1580 [ 1261.642326][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1261.642326][ T254] ip6_route_add+0x1c/0x140 [ 1261.642326][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1261.642326][ T254] addrconf_add_dev+0xe2/0x170 [ 1261.642326][ T254] inet6_addr_add+0x12f/0xa40 [ 1261.642326][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1261.642326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1261.642326][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.642326][ T254] netlink_unicast+0x449/0x710 [ 1261.642326][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.642326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.642326][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.642326][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.642326][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.642326][ T254] [ 1261.645420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.645420][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1261.645420][ T254] ipv6_find_idev+0x102/0x170 [ 1261.645420][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1261.645420][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1261.645420][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.645420][ T254] netlink_unicast+0x449/0x710 [ 1261.645420][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.645420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.645420][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.645420][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.645420][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.645420][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1261.645420][ T254] [ 1261.647809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1261.647809][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1261.647809][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1261.647809][ T254] ipv6_find_idev+0x102/0x170 [ 1261.647809][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1261.647809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1261.647809][ T254] netlink_rcv_skb+0x130/0x360 [ 1261.647809][ T254] netlink_unicast+0x449/0x710 [ 1261.647809][ T254] netlink_sendmsg+0x723/0xbe0 [ 1261.647809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1261.647809][ T254] ___sys_sendmsg+0xee/0x170 [ 1261.647809][ T254] __sys_sendmsg+0xcd/0x170 [ 1261.647809][ T254] do_syscall_64+0xc6/0x1e0 [ 1261.647809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1261.647809][ T254] [ 1271.887874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1271.888398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.888398][ T254] dst_init+0x84/0x4a0 [ 1271.888398][ T254] dst_alloc+0x97/0x150 [ 1271.888398][ T254] ip6_dst_alloc+0x23/0x90 [ 1271.888398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1271.888398][ T254] ip6_pol_route+0x56f/0x840 [ 1271.888398][ T254] fib6_rule_lookup+0x334/0x630 [ 1271.888398][ T254] ip6_route_output_flags+0x259/0x480 [ 1271.888398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1271.888398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1271.888398][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.888398][ T254] netlink_unicast+0x449/0x710 [ 1271.888398][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.888398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.888398][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.888398][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.888398][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.888398][ T254] [ 1271.890602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.890602][ T254] netdev_get_by_index+0x5e/0x80 [ 1271.890602][ T254] fib6_nh_init+0x3d8/0x1580 [ 1271.890602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1271.890602][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1271.890602][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1271.890602][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1271.890602][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1271.890602][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1271.890602][ T254] addrconf_dad_begin+0x310/0x670 [ 1271.890602][ T254] addrconf_dad_work+0x10b/0xab0 [ 1271.890602][ T254] process_one_work+0x84d/0x18a0 [ 1271.890602][ T254] worker_thread+0x587/0xd30 [ 1271.890602][ T254] kthread+0x28a/0x350 [ 1271.890602][ T254] ret_from_fork+0x31/0x70 [ 1271.890602][ T254] ret_from_fork_asm+0x1a/0x30 [ 1271.890602][ T254] [ 1271.892757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.892757][ T254] netdev_get_by_index+0x5e/0x80 [ 1271.892757][ T254] fib6_nh_init+0x3d8/0x1580 [ 1271.892757][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1271.892757][ T254] ip6_route_add+0x1c/0x140 [ 1271.892757][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1271.892757][ T254] inet6_addr_add+0x4f8/0xa40 [ 1271.892757][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1271.892757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1271.892757][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.892757][ T254] netlink_unicast+0x449/0x710 [ 1271.892757][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.892757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.892757][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.892757][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.892757][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.892757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1271.892757][ T254] [ 1271.895549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.895549][ T254] netdev_get_by_index+0x5e/0x80 [ 1271.895549][ T254] fib6_nh_init+0x3d8/0x1580 [ 1271.895549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1271.895549][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1271.895549][ T254] ipv6_add_addr+0x411/0x2000 [ 1271.895549][ T254] inet6_addr_add+0x30e/0xa40 [ 1271.895549][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1271.895549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1271.895549][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.895549][ T254] netlink_unicast+0x449/0x710 [ 1271.895549][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.895549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.895549][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.895549][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.895549][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.895549][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1271.895549][ T254] [ 1271.897812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.897812][ T254] netdev_get_by_index+0x5e/0x80 [ 1271.897812][ T254] fib6_nh_init+0x3d8/0x1580 [ 1271.897812][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1271.897812][ T254] ip6_route_add+0x1c/0x140 [ 1271.897812][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1271.897812][ T254] addrconf_add_dev+0xe2/0x170 [ 1271.897812][ T254] inet6_addr_add+0x12f/0xa40 [ 1271.897812][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1271.897812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1271.897812][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.897812][ T254] netlink_unicast+0x449/0x710 [ 1271.897812][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.897812][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.897812][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.897812][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.897812][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.897812][ T254] [ 1271.900013][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.900013][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1271.900013][ T254] ipv6_find_idev+0x102/0x170 [ 1271.900013][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1271.900013][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1271.900013][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.900013][ T254] netlink_unicast+0x449/0x710 [ 1271.900013][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.900013][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.900013][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.900013][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.900013][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.900013][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1271.900013][ T254] [ 1271.901743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1271.901743][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1271.901743][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1271.901743][ T254] ipv6_find_idev+0x102/0x170 [ 1271.901743][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1271.901743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1271.901743][ T254] netlink_rcv_skb+0x130/0x360 [ 1271.901743][ T254] netlink_unicast+0x449/0x710 [ 1271.901743][ T254] netlink_sendmsg+0x723/0xbe0 [ 1271.901743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1271.901743][ T254] ___sys_sendmsg+0xee/0x170 [ 1271.901743][ T254] __sys_sendmsg+0xcd/0x170 [ 1271.901743][ T254] do_syscall_64+0xc6/0x1e0 [ 1271.901743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1271.901743][ T254] [ 1282.095914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1282.096390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.096390][ T254] dst_init+0x84/0x4a0 [ 1282.096390][ T254] dst_alloc+0x97/0x150 [ 1282.096390][ T254] ip6_dst_alloc+0x23/0x90 [ 1282.096390][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1282.096390][ T254] ip6_pol_route+0x56f/0x840 [ 1282.096390][ T254] fib6_rule_lookup+0x334/0x630 [ 1282.096390][ T254] ip6_route_output_flags+0x259/0x480 [ 1282.096390][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1282.096390][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1282.096390][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.096390][ T254] netlink_unicast+0x449/0x710 [ 1282.096390][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.096390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.096390][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.096390][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.096390][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.096390][ T254] [ 1282.098591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.098591][ T254] netdev_get_by_index+0x5e/0x80 [ 1282.098591][ T254] fib6_nh_init+0x3d8/0x1580 [ 1282.098591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1282.098591][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1282.098591][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1282.098591][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1282.098591][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1282.098591][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1282.098591][ T254] addrconf_dad_begin+0x310/0x670 [ 1282.098591][ T254] addrconf_dad_work+0x10b/0xab0 [ 1282.098591][ T254] process_one_work+0x84d/0x18a0 [ 1282.098591][ T254] worker_thread+0x587/0xd30 [ 1282.098591][ T254] kthread+0x28a/0x350 [ 1282.098591][ T254] ret_from_fork+0x31/0x70 [ 1282.098591][ T254] ret_from_fork_asm+0x1a/0x30 [ 1282.098591][ T254] [ 1282.100758][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.100758][ T254] netdev_get_by_index+0x5e/0x80 [ 1282.100758][ T254] fib6_nh_init+0x3d8/0x1580 [ 1282.100758][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1282.100758][ T254] ip6_route_add+0x1c/0x140 [ 1282.100758][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1282.100758][ T254] inet6_addr_add+0x4f8/0xa40 [ 1282.100758][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.100758][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.100758][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.100758][ T254] netlink_unicast+0x449/0x710 [ 1282.100758][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.100758][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.100758][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.100758][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.100758][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.100758][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.100758][ T254] [ 1282.102999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.102999][ T254] netdev_get_by_index+0x5e/0x80 [ 1282.102999][ T254] fib6_nh_init+0x3d8/0x1580 [ 1282.102999][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1282.102999][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1282.102999][ T254] ipv6_add_addr+0x411/0x2000 [ 1282.102999][ T254] inet6_addr_add+0x30e/0xa40 [ 1282.102999][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.102999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.102999][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.102999][ T254] netlink_unicast+0x449/0x710 [ 1282.102999][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.102999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.102999][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.102999][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.102999][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.102999][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.102999][ T254] [ 1282.105273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.105273][ T254] netdev_get_by_index+0x5e/0x80 [ 1282.105273][ T254] fib6_nh_init+0x3d8/0x1580 [ 1282.105273][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1282.105273][ T254] ip6_route_add+0x1c/0x140 [ 1282.105273][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1282.105273][ T254] addrconf_add_dev+0xe2/0x170 [ 1282.105273][ T254] inet6_addr_add+0x12f/0xa40 [ 1282.105273][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1282.105273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.105273][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.105273][ T254] netlink_unicast+0x449/0x710 [ 1282.105273][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.105273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.105273][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.105273][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.105273][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.105273][ T254] [ 1282.107475][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.107475][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1282.107475][ T254] ipv6_find_idev+0x102/0x170 [ 1282.107475][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1282.107475][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.107475][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.107475][ T254] netlink_unicast+0x449/0x710 [ 1282.107475][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.107475][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.107475][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.107475][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.107475][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.107475][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.107475][ T254] [ 1282.109195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1282.109195][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1282.109195][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1282.109195][ T254] ipv6_find_idev+0x102/0x170 [ 1282.109195][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1282.109195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1282.109195][ T254] netlink_rcv_skb+0x130/0x360 [ 1282.109195][ T254] netlink_unicast+0x449/0x710 [ 1282.109195][ T254] netlink_sendmsg+0x723/0xbe0 [ 1282.109195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1282.109195][ T254] ___sys_sendmsg+0xee/0x170 [ 1282.109195][ T254] __sys_sendmsg+0xcd/0x170 [ 1282.109195][ T254] do_syscall_64+0xc6/0x1e0 [ 1282.109195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1282.109195][ T254] [ 1292.359873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1292.360359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.360359][ T254] dst_init+0x84/0x4a0 [ 1292.360359][ T254] dst_alloc+0x97/0x150 [ 1292.360359][ T254] ip6_dst_alloc+0x23/0x90 [ 1292.360359][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1292.360359][ T254] ip6_pol_route+0x56f/0x840 [ 1292.360359][ T254] fib6_rule_lookup+0x334/0x630 [ 1292.360359][ T254] ip6_route_output_flags+0x259/0x480 [ 1292.360359][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1292.360359][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1292.360359][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.360359][ T254] netlink_unicast+0x449/0x710 [ 1292.360359][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.360359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.360359][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.360359][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.360359][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.360359][ T254] [ 1292.362573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.362573][ T254] netdev_get_by_index+0x5e/0x80 [ 1292.362573][ T254] fib6_nh_init+0x3d8/0x1580 [ 1292.362573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1292.362573][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1292.362573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1292.362573][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1292.362573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1292.362573][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1292.362573][ T254] addrconf_dad_begin+0x310/0x670 [ 1292.362573][ T254] addrconf_dad_work+0x10b/0xab0 [ 1292.362573][ T254] process_one_work+0x84d/0x18a0 [ 1292.362573][ T254] worker_thread+0x587/0xd30 [ 1292.362573][ T254] kthread+0x28a/0x350 [ 1292.362573][ T254] ret_from_fork+0x31/0x70 [ 1292.362573][ T254] ret_from_fork_asm+0x1a/0x30 [ 1292.362573][ T254] [ 1292.364713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.364713][ T254] netdev_get_by_index+0x5e/0x80 [ 1292.364713][ T254] fib6_nh_init+0x3d8/0x1580 [ 1292.364713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1292.364713][ T254] ip6_route_add+0x1c/0x140 [ 1292.364713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1292.364713][ T254] inet6_addr_add+0x4f8/0xa40 [ 1292.364713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.364713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.364713][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.364713][ T254] netlink_unicast+0x449/0x710 [ 1292.364713][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.364713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.364713][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.364713][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.364713][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.364713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.364713][ T254] [ 1292.366948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.366948][ T254] netdev_get_by_index+0x5e/0x80 [ 1292.366948][ T254] fib6_nh_init+0x3d8/0x1580 [ 1292.366948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1292.366948][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1292.366948][ T254] ipv6_add_addr+0x411/0x2000 [ 1292.366948][ T254] inet6_addr_add+0x30e/0xa40 [ 1292.366948][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.366948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.366948][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.366948][ T254] netlink_unicast+0x449/0x710 [ 1292.366948][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.366948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.366948][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.366948][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.366948][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.366948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.366948][ T254] [ 1292.369184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.369184][ T254] netdev_get_by_index+0x5e/0x80 [ 1292.369184][ T254] fib6_nh_init+0x3d8/0x1580 [ 1292.369184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1292.369184][ T254] ip6_route_add+0x1c/0x140 [ 1292.369184][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1292.369184][ T254] addrconf_add_dev+0xe2/0x170 [ 1292.369184][ T254] inet6_addr_add+0x12f/0xa40 [ 1292.369184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1292.369184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.369184][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.369184][ T254] netlink_unicast+0x449/0x710 [ 1292.369184][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.369184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.369184][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.369184][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.369184][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.369184][ T254] [ 1292.371397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.371397][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1292.371397][ T254] ipv6_find_idev+0x102/0x170 [ 1292.371397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1292.371397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.371397][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.371397][ T254] netlink_unicast+0x449/0x710 [ 1292.371397][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.371397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.371397][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.371397][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.371397][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.371397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.371397][ T254] [ 1292.373117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1292.373117][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1292.373117][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1292.373117][ T254] ipv6_find_idev+0x102/0x170 [ 1292.373117][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1292.373117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1292.373117][ T254] netlink_rcv_skb+0x130/0x360 [ 1292.373117][ T254] netlink_unicast+0x449/0x710 [ 1292.373117][ T254] netlink_sendmsg+0x723/0xbe0 [ 1292.373117][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1292.373117][ T254] ___sys_sendmsg+0xee/0x170 [ 1292.373117][ T254] __sys_sendmsg+0xcd/0x170 [ 1292.373117][ T254] do_syscall_64+0xc6/0x1e0 [ 1292.373117][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1292.373117][ T254] [ 1302.623895][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1302.624394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.624394][ T254] dst_init+0x84/0x4a0 [ 1302.624394][ T254] dst_alloc+0x97/0x150 [ 1302.624394][ T254] ip6_dst_alloc+0x23/0x90 [ 1302.624394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1302.624394][ T254] ip6_pol_route+0x56f/0x840 [ 1302.624394][ T254] fib6_rule_lookup+0x334/0x630 [ 1302.624394][ T254] ip6_route_output_flags+0x259/0x480 [ 1302.624394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1302.624394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1302.624394][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.624394][ T254] netlink_unicast+0x449/0x710 [ 1302.624394][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.624394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.624394][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.624394][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.624394][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.624394][ T254] [ 1302.627005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.627005][ T254] netdev_get_by_index+0x5e/0x80 [ 1302.627005][ T254] fib6_nh_init+0x3d8/0x1580 [ 1302.627005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1302.627005][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1302.627005][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1302.627005][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1302.627005][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1302.627005][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1302.627005][ T254] addrconf_dad_begin+0x310/0x670 [ 1302.627005][ T254] addrconf_dad_work+0x10b/0xab0 [ 1302.627005][ T254] process_one_work+0x84d/0x18a0 [ 1302.627005][ T254] worker_thread+0x587/0xd30 [ 1302.627005][ T254] kthread+0x28a/0x350 [ 1302.627005][ T254] ret_from_fork+0x31/0x70 [ 1302.627005][ T254] ret_from_fork_asm+0x1a/0x30 [ 1302.627005][ T254] [ 1302.629249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.629249][ T254] netdev_get_by_index+0x5e/0x80 [ 1302.629249][ T254] fib6_nh_init+0x3d8/0x1580 [ 1302.629249][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1302.629249][ T254] ip6_route_add+0x1c/0x140 [ 1302.629249][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1302.629249][ T254] inet6_addr_add+0x4f8/0xa40 [ 1302.629249][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.629249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.629249][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.629249][ T254] netlink_unicast+0x449/0x710 [ 1302.629249][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.629249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.629249][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.629249][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.629249][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.629249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.629249][ T254] [ 1302.631525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.631525][ T254] netdev_get_by_index+0x5e/0x80 [ 1302.631525][ T254] fib6_nh_init+0x3d8/0x1580 [ 1302.631525][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1302.631525][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1302.631525][ T254] ipv6_add_addr+0x411/0x2000 [ 1302.631525][ T254] inet6_addr_add+0x30e/0xa40 [ 1302.631525][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.631525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.631525][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.631525][ T254] netlink_unicast+0x449/0x710 [ 1302.631525][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.631525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.631525][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.631525][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.631525][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.631525][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.631525][ T254] [ 1302.633772][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.633772][ T254] netdev_get_by_index+0x5e/0x80 [ 1302.633772][ T254] fib6_nh_init+0x3d8/0x1580 [ 1302.633772][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1302.633772][ T254] ip6_route_add+0x1c/0x140 [ 1302.633772][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1302.633772][ T254] addrconf_add_dev+0xe2/0x170 [ 1302.633772][ T254] inet6_addr_add+0x12f/0xa40 [ 1302.633772][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1302.633772][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.633772][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.633772][ T254] netlink_unicast+0x449/0x710 [ 1302.633772][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.633772][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.633772][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.633772][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.633772][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.633772][ T254] [ 1302.635978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.635978][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1302.635978][ T254] ipv6_find_idev+0x102/0x170 [ 1302.635978][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1302.635978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.635978][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.635978][ T254] netlink_unicast+0x449/0x710 [ 1302.635978][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.635978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.635978][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.635978][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.635978][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.635978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.635978][ T254] [ 1302.637715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1302.637715][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1302.637715][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1302.637715][ T254] ipv6_find_idev+0x102/0x170 [ 1302.637715][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1302.637715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1302.637715][ T254] netlink_rcv_skb+0x130/0x360 [ 1302.637715][ T254] netlink_unicast+0x449/0x710 [ 1302.637715][ T254] netlink_sendmsg+0x723/0xbe0 [ 1302.637715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1302.637715][ T254] ___sys_sendmsg+0xee/0x170 [ 1302.637715][ T254] __sys_sendmsg+0xcd/0x170 [ 1302.637715][ T254] do_syscall_64+0xc6/0x1e0 [ 1302.637715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1302.637715][ T254] [ 1312.887874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1312.888400][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.888400][ T254] dst_init+0x84/0x4a0 [ 1312.888400][ T254] dst_alloc+0x97/0x150 [ 1312.888400][ T254] ip6_dst_alloc+0x23/0x90 [ 1312.888400][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1312.888400][ T254] ip6_pol_route+0x56f/0x840 [ 1312.888400][ T254] fib6_rule_lookup+0x334/0x630 [ 1312.888400][ T254] ip6_route_output_flags+0x259/0x480 [ 1312.888400][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1312.888400][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1312.888400][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.888400][ T254] netlink_unicast+0x449/0x710 [ 1312.888400][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.888400][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.888400][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.888400][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.888400][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.888400][ T254] [ 1312.890623][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.890623][ T254] netdev_get_by_index+0x5e/0x80 [ 1312.890623][ T254] fib6_nh_init+0x3d8/0x1580 [ 1312.890623][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1312.890623][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1312.890623][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1312.890623][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1312.890623][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1312.890623][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1312.890623][ T254] addrconf_dad_begin+0x310/0x670 [ 1312.890623][ T254] addrconf_dad_work+0x10b/0xab0 [ 1312.890623][ T254] process_one_work+0x84d/0x18a0 [ 1312.890623][ T254] worker_thread+0x587/0xd30 [ 1312.890623][ T254] kthread+0x28a/0x350 [ 1312.890623][ T254] ret_from_fork+0x31/0x70 [ 1312.890623][ T254] ret_from_fork_asm+0x1a/0x30 [ 1312.890623][ T254] [ 1312.892771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.892771][ T254] netdev_get_by_index+0x5e/0x80 [ 1312.892771][ T254] fib6_nh_init+0x3d8/0x1580 [ 1312.892771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1312.892771][ T254] ip6_route_add+0x1c/0x140 [ 1312.892771][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1312.892771][ T254] inet6_addr_add+0x4f8/0xa40 [ 1312.892771][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1312.892771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1312.892771][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.892771][ T254] netlink_unicast+0x449/0x710 [ 1312.892771][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.892771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.892771][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.892771][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.892771][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.892771][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1312.892771][ T254] [ 1312.895014][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.895014][ T254] netdev_get_by_index+0x5e/0x80 [ 1312.895014][ T254] fib6_nh_init+0x3d8/0x1580 [ 1312.895014][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1312.895014][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1312.895014][ T254] ipv6_add_addr+0x411/0x2000 [ 1312.895014][ T254] inet6_addr_add+0x30e/0xa40 [ 1312.895014][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1312.895014][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1312.895014][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.895014][ T254] netlink_unicast+0x449/0x710 [ 1312.895014][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.895014][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.895014][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.895014][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.895014][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.895014][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1312.895014][ T254] [ 1312.897266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.897266][ T254] netdev_get_by_index+0x5e/0x80 [ 1312.897266][ T254] fib6_nh_init+0x3d8/0x1580 [ 1312.897266][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1312.897266][ T254] ip6_route_add+0x1c/0x140 [ 1312.897266][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1312.897266][ T254] addrconf_add_dev+0xe2/0x170 [ 1312.897266][ T254] inet6_addr_add+0x12f/0xa40 [ 1312.897266][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1312.897266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1312.897266][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.897266][ T254] netlink_unicast+0x449/0x710 [ 1312.897266][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.897266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.897266][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.897266][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.897266][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.897266][ T254] [ 1312.899462][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.899462][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1312.899462][ T254] ipv6_find_idev+0x102/0x170 [ 1312.899462][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1312.899462][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1312.899462][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.899462][ T254] netlink_unicast+0x449/0x710 [ 1312.899462][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.899462][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.899462][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.899462][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.899462][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.899462][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1312.899462][ T254] [ 1312.901203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1312.901203][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1312.901203][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1312.901203][ T254] ipv6_find_idev+0x102/0x170 [ 1312.901203][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1312.901203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1312.901203][ T254] netlink_rcv_skb+0x130/0x360 [ 1312.901203][ T254] netlink_unicast+0x449/0x710 [ 1312.901203][ T254] netlink_sendmsg+0x723/0xbe0 [ 1312.901203][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1312.901203][ T254] ___sys_sendmsg+0xee/0x170 [ 1312.901203][ T254] __sys_sendmsg+0xcd/0x170 [ 1312.901203][ T254] do_syscall_64+0xc6/0x1e0 [ 1312.901203][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1312.901203][ T254] [ 1322.967915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1322.968715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.968715][ T254] dst_init+0x84/0x4a0 [ 1322.968715][ T254] dst_alloc+0x97/0x150 [ 1322.968715][ T254] ip6_dst_alloc+0x23/0x90 [ 1322.968715][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1322.968715][ T254] ip6_pol_route+0x56f/0x840 [ 1322.968715][ T254] fib6_rule_lookup+0x334/0x630 [ 1322.968715][ T254] ip6_route_output_flags+0x259/0x480 [ 1322.968715][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1322.968715][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1322.968715][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.968715][ T254] netlink_unicast+0x449/0x710 [ 1322.968715][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.968715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.968715][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.968715][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.968715][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.968715][ T254] [ 1322.970933][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.970933][ T254] netdev_get_by_index+0x5e/0x80 [ 1322.970933][ T254] fib6_nh_init+0x3d8/0x1580 [ 1322.970933][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1322.970933][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1322.970933][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1322.970933][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1322.970933][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1322.970933][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1322.970933][ T254] addrconf_dad_begin+0x310/0x670 [ 1322.970933][ T254] addrconf_dad_work+0x10b/0xab0 [ 1322.970933][ T254] process_one_work+0x84d/0x18a0 [ 1322.970933][ T254] worker_thread+0x587/0xd30 [ 1322.970933][ T254] kthread+0x28a/0x350 [ 1322.970933][ T254] ret_from_fork+0x31/0x70 [ 1322.970933][ T254] ret_from_fork_asm+0x1a/0x30 [ 1322.970933][ T254] [ 1322.973139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.973139][ T254] netdev_get_by_index+0x5e/0x80 [ 1322.973139][ T254] fib6_nh_init+0x3d8/0x1580 [ 1322.973139][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1322.973139][ T254] ip6_route_add+0x1c/0x140 [ 1322.973139][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1322.973139][ T254] inet6_addr_add+0x4f8/0xa40 [ 1322.973139][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1322.973139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1322.973139][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.973139][ T254] netlink_unicast+0x449/0x710 [ 1322.973139][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.973139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.973139][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.973139][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.973139][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.973139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1322.973139][ T254] [ 1322.976367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.976367][ T254] netdev_get_by_index+0x5e/0x80 [ 1322.976367][ T254] fib6_nh_init+0x3d8/0x1580 [ 1322.976367][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1322.976367][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1322.976367][ T254] ipv6_add_addr+0x411/0x2000 [ 1322.976367][ T254] inet6_addr_add+0x30e/0xa40 [ 1322.976367][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1322.976367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1322.976367][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.976367][ T254] netlink_unicast+0x449/0x710 [ 1322.976367][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.976367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.976367][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.976367][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.976367][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.976367][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1322.976367][ T254] [ 1322.979634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.979634][ T254] netdev_get_by_index+0x5e/0x80 [ 1322.979634][ T254] fib6_nh_init+0x3d8/0x1580 [ 1322.979634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1322.979634][ T254] ip6_route_add+0x1c/0x140 [ 1322.979634][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1322.979634][ T254] addrconf_add_dev+0xe2/0x170 [ 1322.979634][ T254] inet6_addr_add+0x12f/0xa40 [ 1322.979634][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1322.979634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1322.979634][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.979634][ T254] netlink_unicast+0x449/0x710 [ 1322.979634][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.979634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.979634][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.979634][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.979634][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.979634][ T254] [ 1322.982854][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.982854][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1322.982854][ T254] ipv6_find_idev+0x102/0x170 [ 1322.982854][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1322.982854][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1322.982854][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.982854][ T254] netlink_unicast+0x449/0x710 [ 1322.982854][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.982854][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.982854][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.982854][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.982854][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.982854][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1322.982854][ T254] [ 1322.985379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1322.985379][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1322.985379][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1322.985379][ T254] ipv6_find_idev+0x102/0x170 [ 1322.985379][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1322.985379][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1322.985379][ T254] netlink_rcv_skb+0x130/0x360 [ 1322.985379][ T254] netlink_unicast+0x449/0x710 [ 1322.985379][ T254] netlink_sendmsg+0x723/0xbe0 [ 1322.985379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1322.985379][ T254] ___sys_sendmsg+0xee/0x170 [ 1322.985379][ T254] __sys_sendmsg+0xcd/0x170 [ 1322.985379][ T254] do_syscall_64+0xc6/0x1e0 [ 1322.985379][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1322.985379][ T254] [ 1333.223844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1333.224311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.224311][ T254] dst_init+0x84/0x4a0 [ 1333.224311][ T254] dst_alloc+0x97/0x150 [ 1333.224311][ T254] ip6_dst_alloc+0x23/0x90 [ 1333.224311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1333.224311][ T254] ip6_pol_route+0x56f/0x840 [ 1333.224311][ T254] fib6_rule_lookup+0x334/0x630 [ 1333.224311][ T254] ip6_route_output_flags+0x259/0x480 [ 1333.224311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1333.224311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1333.224311][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.224311][ T254] netlink_unicast+0x449/0x710 [ 1333.224311][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.224311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.224311][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.224311][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.224311][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.224311][ T254] [ 1333.226523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.226523][ T254] netdev_get_by_index+0x5e/0x80 [ 1333.226523][ T254] fib6_nh_init+0x3d8/0x1580 [ 1333.226523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1333.226523][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1333.226523][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1333.226523][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1333.226523][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1333.226523][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1333.226523][ T254] addrconf_dad_begin+0x310/0x670 [ 1333.226523][ T254] addrconf_dad_work+0x10b/0xab0 [ 1333.226523][ T254] process_one_work+0x84d/0x18a0 [ 1333.226523][ T254] worker_thread+0x587/0xd30 [ 1333.226523][ T254] kthread+0x28a/0x350 [ 1333.226523][ T254] ret_from_fork+0x31/0x70 [ 1333.226523][ T254] ret_from_fork_asm+0x1a/0x30 [ 1333.226523][ T254] [ 1333.228666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.228666][ T254] netdev_get_by_index+0x5e/0x80 [ 1333.228666][ T254] fib6_nh_init+0x3d8/0x1580 [ 1333.228666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1333.228666][ T254] ip6_route_add+0x1c/0x140 [ 1333.228666][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1333.228666][ T254] inet6_addr_add+0x4f8/0xa40 [ 1333.228666][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.228666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.228666][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.228666][ T254] netlink_unicast+0x449/0x710 [ 1333.228666][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.228666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.228666][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.228666][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.228666][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.228666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.228666][ T254] [ 1333.230924][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.230924][ T254] netdev_get_by_index+0x5e/0x80 [ 1333.230924][ T254] fib6_nh_init+0x3d8/0x1580 [ 1333.230924][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1333.230924][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1333.230924][ T254] ipv6_add_addr+0x411/0x2000 [ 1333.230924][ T254] inet6_addr_add+0x30e/0xa40 [ 1333.230924][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.230924][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.230924][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.230924][ T254] netlink_unicast+0x449/0x710 [ 1333.230924][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.230924][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.230924][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.230924][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.230924][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.230924][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.230924][ T254] [ 1333.233615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.233615][ T254] netdev_get_by_index+0x5e/0x80 [ 1333.233615][ T254] fib6_nh_init+0x3d8/0x1580 [ 1333.233615][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1333.233615][ T254] ip6_route_add+0x1c/0x140 [ 1333.233615][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1333.233615][ T254] addrconf_add_dev+0xe2/0x170 [ 1333.233615][ T254] inet6_addr_add+0x12f/0xa40 [ 1333.233615][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1333.233615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.233615][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.233615][ T254] netlink_unicast+0x449/0x710 [ 1333.233615][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.233615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.233615][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.233615][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.233615][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.233615][ T254] [ 1333.236282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.236282][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1333.236282][ T254] ipv6_find_idev+0x102/0x170 [ 1333.236282][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1333.236282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.236282][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.236282][ T254] netlink_unicast+0x449/0x710 [ 1333.236282][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.236282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.236282][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.236282][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.236282][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.236282][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.236282][ T254] [ 1333.238357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1333.238357][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1333.238357][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1333.238357][ T254] ipv6_find_idev+0x102/0x170 [ 1333.238357][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1333.238357][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1333.238357][ T254] netlink_rcv_skb+0x130/0x360 [ 1333.238357][ T254] netlink_unicast+0x449/0x710 [ 1333.238357][ T254] netlink_sendmsg+0x723/0xbe0 [ 1333.238357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1333.238357][ T254] ___sys_sendmsg+0xee/0x170 [ 1333.238357][ T254] __sys_sendmsg+0xcd/0x170 [ 1333.238357][ T254] do_syscall_64+0xc6/0x1e0 [ 1333.238357][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1333.238357][ T254] [ 1343.479805][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1343.480351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.480351][ T254] dst_init+0x84/0x4a0 [ 1343.480351][ T254] dst_alloc+0x97/0x150 [ 1343.480351][ T254] ip6_dst_alloc+0x23/0x90 [ 1343.480351][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1343.480351][ T254] ip6_pol_route+0x56f/0x840 [ 1343.480351][ T254] fib6_rule_lookup+0x334/0x630 [ 1343.480351][ T254] ip6_route_output_flags+0x259/0x480 [ 1343.480351][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1343.480351][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1343.480351][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.480351][ T254] netlink_unicast+0x449/0x710 [ 1343.480351][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.480351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.480351][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.480351][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.480351][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.480351][ T254] [ 1343.483009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.483009][ T254] netdev_get_by_index+0x5e/0x80 [ 1343.483009][ T254] fib6_nh_init+0x3d8/0x1580 [ 1343.483009][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1343.483009][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1343.483009][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1343.483009][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1343.483009][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1343.483009][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1343.483009][ T254] addrconf_dad_begin+0x310/0x670 [ 1343.483009][ T254] addrconf_dad_work+0x10b/0xab0 [ 1343.483009][ T254] process_one_work+0x84d/0x18a0 [ 1343.483009][ T254] worker_thread+0x587/0xd30 [ 1343.483009][ T254] kthread+0x28a/0x350 [ 1343.483009][ T254] ret_from_fork+0x31/0x70 [ 1343.483009][ T254] ret_from_fork_asm+0x1a/0x30 [ 1343.483009][ T254] [ 1343.485583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.485583][ T254] netdev_get_by_index+0x5e/0x80 [ 1343.485583][ T254] fib6_nh_init+0x3d8/0x1580 [ 1343.485583][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1343.485583][ T254] ip6_route_add+0x1c/0x140 [ 1343.485583][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1343.485583][ T254] inet6_addr_add+0x4f8/0xa40 [ 1343.485583][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.485583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.485583][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.485583][ T254] netlink_unicast+0x449/0x710 [ 1343.485583][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.485583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.485583][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.485583][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.485583][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.485583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.485583][ T254] [ 1343.488274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.488274][ T254] netdev_get_by_index+0x5e/0x80 [ 1343.488274][ T254] fib6_nh_init+0x3d8/0x1580 [ 1343.488274][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1343.488274][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1343.488274][ T254] ipv6_add_addr+0x411/0x2000 [ 1343.488274][ T254] inet6_addr_add+0x30e/0xa40 [ 1343.488274][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.488274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.488274][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.488274][ T254] netlink_unicast+0x449/0x710 [ 1343.488274][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.488274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.488274][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.488274][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.488274][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.488274][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.488274][ T254] [ 1343.491000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.491000][ T254] netdev_get_by_index+0x5e/0x80 [ 1343.491000][ T254] fib6_nh_init+0x3d8/0x1580 [ 1343.491000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1343.491000][ T254] ip6_route_add+0x1c/0x140 [ 1343.491000][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1343.491000][ T254] addrconf_add_dev+0xe2/0x170 [ 1343.491000][ T254] inet6_addr_add+0x12f/0xa40 [ 1343.491000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1343.491000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.491000][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.491000][ T254] netlink_unicast+0x449/0x710 [ 1343.491000][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.491000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.491000][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.491000][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.491000][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.491000][ T254] [ 1343.493658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.493658][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1343.493658][ T254] ipv6_find_idev+0x102/0x170 [ 1343.493658][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1343.493658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.493658][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.493658][ T254] netlink_unicast+0x449/0x710 [ 1343.493658][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.493658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.493658][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.493658][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.493658][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.493658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.493658][ T254] [ 1343.495728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1343.495728][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1343.495728][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1343.495728][ T254] ipv6_find_idev+0x102/0x170 [ 1343.495728][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1343.495728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1343.495728][ T254] netlink_rcv_skb+0x130/0x360 [ 1343.495728][ T254] netlink_unicast+0x449/0x710 [ 1343.495728][ T254] netlink_sendmsg+0x723/0xbe0 [ 1343.495728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1343.495728][ T254] ___sys_sendmsg+0xee/0x170 [ 1343.495728][ T254] __sys_sendmsg+0xcd/0x170 [ 1343.495728][ T254] do_syscall_64+0xc6/0x1e0 [ 1343.495728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1343.495728][ T254] [ 1353.735867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1353.736589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.736589][ T254] dst_init+0x84/0x4a0 [ 1353.736589][ T254] dst_alloc+0x97/0x150 [ 1353.736589][ T254] ip6_dst_alloc+0x23/0x90 [ 1353.736589][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1353.736589][ T254] ip6_pol_route+0x56f/0x840 [ 1353.736589][ T254] fib6_rule_lookup+0x334/0x630 [ 1353.736589][ T254] ip6_route_output_flags+0x259/0x480 [ 1353.736589][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1353.736589][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1353.736589][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.736589][ T254] netlink_unicast+0x449/0x710 [ 1353.736589][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.736589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.736589][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.736589][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.736589][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.736589][ T254] [ 1353.739327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.739327][ T254] netdev_get_by_index+0x5e/0x80 [ 1353.739327][ T254] fib6_nh_init+0x3d8/0x1580 [ 1353.739327][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1353.739327][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1353.739327][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1353.739327][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1353.739327][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1353.739327][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1353.739327][ T254] addrconf_dad_begin+0x310/0x670 [ 1353.739327][ T254] addrconf_dad_work+0x10b/0xab0 [ 1353.739327][ T254] process_one_work+0x84d/0x18a0 [ 1353.739327][ T254] worker_thread+0x587/0xd30 [ 1353.739327][ T254] kthread+0x28a/0x350 [ 1353.739327][ T254] ret_from_fork+0x31/0x70 [ 1353.739327][ T254] ret_from_fork_asm+0x1a/0x30 [ 1353.739327][ T254] [ 1353.741959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.741959][ T254] netdev_get_by_index+0x5e/0x80 [ 1353.741959][ T254] fib6_nh_init+0x3d8/0x1580 [ 1353.741959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1353.741959][ T254] ip6_route_add+0x1c/0x140 [ 1353.741959][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1353.741959][ T254] inet6_addr_add+0x4f8/0xa40 [ 1353.741959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.741959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.741959][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.741959][ T254] netlink_unicast+0x449/0x710 [ 1353.741959][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.741959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.741959][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.741959][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.741959][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.741959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.741959][ T254] [ 1353.744667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.744667][ T254] netdev_get_by_index+0x5e/0x80 [ 1353.744667][ T254] fib6_nh_init+0x3d8/0x1580 [ 1353.744667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1353.744667][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1353.744667][ T254] ipv6_add_addr+0x411/0x2000 [ 1353.744667][ T254] inet6_addr_add+0x30e/0xa40 [ 1353.744667][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.744667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.744667][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.744667][ T254] netlink_unicast+0x449/0x710 [ 1353.744667][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.744667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.744667][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.744667][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.744667][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.744667][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.744667][ T254] [ 1353.747385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.747385][ T254] netdev_get_by_index+0x5e/0x80 [ 1353.747385][ T254] fib6_nh_init+0x3d8/0x1580 [ 1353.747385][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1353.747385][ T254] ip6_route_add+0x1c/0x140 [ 1353.747385][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1353.747385][ T254] addrconf_add_dev+0xe2/0x170 [ 1353.747385][ T254] inet6_addr_add+0x12f/0xa40 [ 1353.747385][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1353.747385][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.747385][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.747385][ T254] netlink_unicast+0x449/0x710 [ 1353.747385][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.747385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.747385][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.747385][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.747385][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.747385][ T254] [ 1353.749788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.749788][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1353.749788][ T254] ipv6_find_idev+0x102/0x170 [ 1353.749788][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1353.749788][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.749788][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.749788][ T254] netlink_unicast+0x449/0x710 [ 1353.749788][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.749788][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.749788][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.749788][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.749788][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.749788][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.749788][ T254] [ 1353.751541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1353.751541][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1353.751541][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1353.751541][ T254] ipv6_find_idev+0x102/0x170 [ 1353.751541][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1353.751541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1353.751541][ T254] netlink_rcv_skb+0x130/0x360 [ 1353.751541][ T254] netlink_unicast+0x449/0x710 [ 1353.751541][ T254] netlink_sendmsg+0x723/0xbe0 [ 1353.751541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1353.751541][ T254] ___sys_sendmsg+0xee/0x170 [ 1353.751541][ T254] __sys_sendmsg+0xcd/0x170 [ 1353.751541][ T254] do_syscall_64+0xc6/0x1e0 [ 1353.751541][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1353.751541][ T254] [ 1363.871960][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1363.872573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.872573][ T254] dst_init+0x84/0x4a0 [ 1363.872573][ T254] dst_alloc+0x97/0x150 [ 1363.872573][ T254] ip6_dst_alloc+0x23/0x90 [ 1363.872573][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1363.872573][ T254] ip6_pol_route+0x56f/0x840 [ 1363.872573][ T254] fib6_rule_lookup+0x334/0x630 [ 1363.872573][ T254] ip6_route_output_flags+0x259/0x480 [ 1363.872573][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1363.872573][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1363.872573][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.872573][ T254] netlink_unicast+0x449/0x710 [ 1363.872573][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.872573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.872573][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.872573][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.872573][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.872573][ T254] [ 1363.874808][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.874808][ T254] netdev_get_by_index+0x5e/0x80 [ 1363.874808][ T254] fib6_nh_init+0x3d8/0x1580 [ 1363.874808][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1363.874808][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1363.874808][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1363.874808][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1363.874808][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1363.874808][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1363.874808][ T254] addrconf_dad_begin+0x310/0x670 [ 1363.874808][ T254] addrconf_dad_work+0x10b/0xab0 [ 1363.874808][ T254] process_one_work+0x84d/0x18a0 [ 1363.874808][ T254] worker_thread+0x587/0xd30 [ 1363.874808][ T254] kthread+0x28a/0x350 [ 1363.874808][ T254] ret_from_fork+0x31/0x70 [ 1363.874808][ T254] ret_from_fork_asm+0x1a/0x30 [ 1363.874808][ T254] [ 1363.876980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.876980][ T254] netdev_get_by_index+0x5e/0x80 [ 1363.876980][ T254] fib6_nh_init+0x3d8/0x1580 [ 1363.876980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1363.876980][ T254] ip6_route_add+0x1c/0x140 [ 1363.876980][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1363.876980][ T254] inet6_addr_add+0x4f8/0xa40 [ 1363.876980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1363.876980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1363.876980][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.876980][ T254] netlink_unicast+0x449/0x710 [ 1363.876980][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.876980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.876980][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.876980][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.876980][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.876980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1363.876980][ T254] [ 1363.879253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.879253][ T254] netdev_get_by_index+0x5e/0x80 [ 1363.879253][ T254] fib6_nh_init+0x3d8/0x1580 [ 1363.879253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1363.879253][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1363.879253][ T254] ipv6_add_addr+0x411/0x2000 [ 1363.879253][ T254] inet6_addr_add+0x30e/0xa40 [ 1363.879253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1363.879253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1363.879253][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.879253][ T254] netlink_unicast+0x449/0x710 [ 1363.879253][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.879253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.879253][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.879253][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.879253][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.879253][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1363.879253][ T254] [ 1363.881534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.881534][ T254] netdev_get_by_index+0x5e/0x80 [ 1363.881534][ T254] fib6_nh_init+0x3d8/0x1580 [ 1363.881534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1363.881534][ T254] ip6_route_add+0x1c/0x140 [ 1363.881534][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1363.881534][ T254] addrconf_add_dev+0xe2/0x170 [ 1363.881534][ T254] inet6_addr_add+0x12f/0xa40 [ 1363.881534][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1363.881534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1363.881534][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.881534][ T254] netlink_unicast+0x449/0x710 [ 1363.881534][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.881534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.881534][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.881534][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.881534][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.881534][ T254] [ 1363.883864][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.883864][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1363.883864][ T254] ipv6_find_idev+0x102/0x170 [ 1363.883864][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1363.883864][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1363.883864][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.883864][ T254] netlink_unicast+0x449/0x710 [ 1363.883864][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.883864][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.883864][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.883864][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.883864][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.883864][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1363.883864][ T254] [ 1363.885632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1363.885632][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1363.885632][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1363.885632][ T254] ipv6_find_idev+0x102/0x170 [ 1363.885632][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1363.885632][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1363.885632][ T254] netlink_rcv_skb+0x130/0x360 [ 1363.885632][ T254] netlink_unicast+0x449/0x710 [ 1363.885632][ T254] netlink_sendmsg+0x723/0xbe0 [ 1363.885632][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1363.885632][ T254] ___sys_sendmsg+0xee/0x170 [ 1363.885632][ T254] __sys_sendmsg+0xcd/0x170 [ 1363.885632][ T254] do_syscall_64+0xc6/0x1e0 [ 1363.885632][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1363.885632][ T254] [ 1374.127794][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1374.128340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.128340][ T254] dst_init+0x84/0x4a0 [ 1374.128340][ T254] dst_alloc+0x97/0x150 [ 1374.128340][ T254] ip6_dst_alloc+0x23/0x90 [ 1374.128340][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1374.128340][ T254] ip6_pol_route+0x56f/0x840 [ 1374.128340][ T254] fib6_rule_lookup+0x334/0x630 [ 1374.128340][ T254] ip6_route_output_flags+0x259/0x480 [ 1374.128340][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1374.128340][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1374.128340][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.128340][ T254] netlink_unicast+0x449/0x710 [ 1374.128340][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.128340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.128340][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.128340][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.128340][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.128340][ T254] [ 1374.130637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.130637][ T254] netdev_get_by_index+0x5e/0x80 [ 1374.130637][ T254] fib6_nh_init+0x3d8/0x1580 [ 1374.130637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1374.130637][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1374.130637][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1374.130637][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1374.130637][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1374.130637][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1374.130637][ T254] addrconf_dad_begin+0x310/0x670 [ 1374.130637][ T254] addrconf_dad_work+0x10b/0xab0 [ 1374.130637][ T254] process_one_work+0x84d/0x18a0 [ 1374.130637][ T254] worker_thread+0x587/0xd30 [ 1374.130637][ T254] kthread+0x28a/0x350 [ 1374.130637][ T254] ret_from_fork+0x31/0x70 [ 1374.130637][ T254] ret_from_fork_asm+0x1a/0x30 [ 1374.130637][ T254] [ 1374.132782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.132782][ T254] netdev_get_by_index+0x5e/0x80 [ 1374.132782][ T254] fib6_nh_init+0x3d8/0x1580 [ 1374.132782][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1374.132782][ T254] ip6_route_add+0x1c/0x140 [ 1374.132782][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1374.132782][ T254] inet6_addr_add+0x4f8/0xa40 [ 1374.132782][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.132782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.132782][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.132782][ T254] netlink_unicast+0x449/0x710 [ 1374.132782][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.132782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.132782][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.132782][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.132782][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.132782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.132782][ T254] [ 1374.135018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.135018][ T254] netdev_get_by_index+0x5e/0x80 [ 1374.135018][ T254] fib6_nh_init+0x3d8/0x1580 [ 1374.135018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1374.135018][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1374.135018][ T254] ipv6_add_addr+0x411/0x2000 [ 1374.135018][ T254] inet6_addr_add+0x30e/0xa40 [ 1374.135018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.135018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.135018][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.135018][ T254] netlink_unicast+0x449/0x710 [ 1374.135018][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.135018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.135018][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.135018][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.135018][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.135018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.135018][ T254] [ 1374.137280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.137280][ T254] netdev_get_by_index+0x5e/0x80 [ 1374.137280][ T254] fib6_nh_init+0x3d8/0x1580 [ 1374.137280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1374.137280][ T254] ip6_route_add+0x1c/0x140 [ 1374.137280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1374.137280][ T254] addrconf_add_dev+0xe2/0x170 [ 1374.137280][ T254] inet6_addr_add+0x12f/0xa40 [ 1374.137280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1374.137280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.137280][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.137280][ T254] netlink_unicast+0x449/0x710 [ 1374.137280][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.137280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.137280][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.137280][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.137280][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.137280][ T254] [ 1374.139473][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.139473][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1374.139473][ T254] ipv6_find_idev+0x102/0x170 [ 1374.139473][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1374.139473][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.139473][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.139473][ T254] netlink_unicast+0x449/0x710 [ 1374.139473][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.139473][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.139473][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.139473][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.139473][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.139473][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.139473][ T254] [ 1374.141202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1374.141202][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1374.141202][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1374.141202][ T254] ipv6_find_idev+0x102/0x170 [ 1374.141202][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1374.141202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1374.141202][ T254] netlink_rcv_skb+0x130/0x360 [ 1374.141202][ T254] netlink_unicast+0x449/0x710 [ 1374.141202][ T254] netlink_sendmsg+0x723/0xbe0 [ 1374.141202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1374.141202][ T254] ___sys_sendmsg+0xee/0x170 [ 1374.141202][ T254] __sys_sendmsg+0xcd/0x170 [ 1374.141202][ T254] do_syscall_64+0xc6/0x1e0 [ 1374.141202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1374.141202][ T254] [ 1384.383886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1384.384398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.384398][ T254] dst_init+0x84/0x4a0 [ 1384.384398][ T254] dst_alloc+0x97/0x150 [ 1384.384398][ T254] ip6_dst_alloc+0x23/0x90 [ 1384.384398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1384.384398][ T254] ip6_pol_route+0x56f/0x840 [ 1384.384398][ T254] fib6_rule_lookup+0x334/0x630 [ 1384.384398][ T254] ip6_route_output_flags+0x259/0x480 [ 1384.384398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1384.384398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1384.384398][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.384398][ T254] netlink_unicast+0x449/0x710 [ 1384.384398][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.384398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.384398][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.384398][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.384398][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.384398][ T254] [ 1384.386613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.386613][ T254] netdev_get_by_index+0x5e/0x80 [ 1384.386613][ T254] fib6_nh_init+0x3d8/0x1580 [ 1384.386613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1384.386613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1384.386613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1384.386613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1384.386613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1384.386613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1384.386613][ T254] addrconf_dad_begin+0x310/0x670 [ 1384.386613][ T254] addrconf_dad_work+0x10b/0xab0 [ 1384.386613][ T254] process_one_work+0x84d/0x18a0 [ 1384.386613][ T254] worker_thread+0x587/0xd30 [ 1384.386613][ T254] kthread+0x28a/0x350 [ 1384.386613][ T254] ret_from_fork+0x31/0x70 [ 1384.386613][ T254] ret_from_fork_asm+0x1a/0x30 [ 1384.386613][ T254] [ 1384.388821][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.388821][ T254] netdev_get_by_index+0x5e/0x80 [ 1384.388821][ T254] fib6_nh_init+0x3d8/0x1580 [ 1384.388821][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1384.388821][ T254] ip6_route_add+0x1c/0x140 [ 1384.388821][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1384.388821][ T254] inet6_addr_add+0x4f8/0xa40 [ 1384.388821][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.388821][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.388821][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.388821][ T254] netlink_unicast+0x449/0x710 [ 1384.388821][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.388821][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.388821][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.388821][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.388821][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.388821][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.388821][ T254] [ 1384.391230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.391230][ T254] netdev_get_by_index+0x5e/0x80 [ 1384.391230][ T254] fib6_nh_init+0x3d8/0x1580 [ 1384.391230][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1384.391230][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1384.391230][ T254] ipv6_add_addr+0x411/0x2000 [ 1384.391230][ T254] inet6_addr_add+0x30e/0xa40 [ 1384.391230][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.391230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.391230][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.391230][ T254] netlink_unicast+0x449/0x710 [ 1384.391230][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.391230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.391230][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.391230][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.391230][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.391230][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.391230][ T254] [ 1384.393636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.393636][ T254] netdev_get_by_index+0x5e/0x80 [ 1384.393636][ T254] fib6_nh_init+0x3d8/0x1580 [ 1384.393636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1384.393636][ T254] ip6_route_add+0x1c/0x140 [ 1384.393636][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1384.393636][ T254] addrconf_add_dev+0xe2/0x170 [ 1384.393636][ T254] inet6_addr_add+0x12f/0xa40 [ 1384.393636][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1384.393636][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.393636][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.393636][ T254] netlink_unicast+0x449/0x710 [ 1384.393636][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.393636][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.393636][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.393636][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.393636][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.393636][ T254] [ 1384.395988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.395988][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1384.395988][ T254] ipv6_find_idev+0x102/0x170 [ 1384.395988][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1384.395988][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.395988][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.395988][ T254] netlink_unicast+0x449/0x710 [ 1384.395988][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.395988][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.395988][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.395988][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.395988][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.395988][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.395988][ T254] [ 1384.398364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1384.398364][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1384.398364][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1384.398364][ T254] ipv6_find_idev+0x102/0x170 [ 1384.398364][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1384.398364][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1384.398364][ T254] netlink_rcv_skb+0x130/0x360 [ 1384.398364][ T254] netlink_unicast+0x449/0x710 [ 1384.398364][ T254] netlink_sendmsg+0x723/0xbe0 [ 1384.398364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1384.398364][ T254] ___sys_sendmsg+0xee/0x170 [ 1384.398364][ T254] __sys_sendmsg+0xcd/0x170 [ 1384.398364][ T254] do_syscall_64+0xc6/0x1e0 [ 1384.398364][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1384.398364][ T254] [ 1394.639901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1394.640418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.640418][ T254] dst_init+0x84/0x4a0 [ 1394.640418][ T254] dst_alloc+0x97/0x150 [ 1394.640418][ T254] ip6_dst_alloc+0x23/0x90 [ 1394.640418][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1394.640418][ T254] ip6_pol_route+0x56f/0x840 [ 1394.640418][ T254] fib6_rule_lookup+0x334/0x630 [ 1394.640418][ T254] ip6_route_output_flags+0x259/0x480 [ 1394.640418][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1394.640418][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1394.640418][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.640418][ T254] netlink_unicast+0x449/0x710 [ 1394.640418][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.640418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.640418][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.640418][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.640418][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.640418][ T254] [ 1394.642650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.642650][ T254] netdev_get_by_index+0x5e/0x80 [ 1394.642650][ T254] fib6_nh_init+0x3d8/0x1580 [ 1394.642650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1394.642650][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1394.642650][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1394.642650][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1394.642650][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1394.642650][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1394.642650][ T254] addrconf_dad_begin+0x310/0x670 [ 1394.642650][ T254] addrconf_dad_work+0x10b/0xab0 [ 1394.642650][ T254] process_one_work+0x84d/0x18a0 [ 1394.642650][ T254] worker_thread+0x587/0xd30 [ 1394.642650][ T254] kthread+0x28a/0x350 [ 1394.642650][ T254] ret_from_fork+0x31/0x70 [ 1394.642650][ T254] ret_from_fork_asm+0x1a/0x30 [ 1394.642650][ T254] [ 1394.644826][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.644826][ T254] netdev_get_by_index+0x5e/0x80 [ 1394.644826][ T254] fib6_nh_init+0x3d8/0x1580 [ 1394.644826][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1394.644826][ T254] ip6_route_add+0x1c/0x140 [ 1394.644826][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1394.644826][ T254] inet6_addr_add+0x4f8/0xa40 [ 1394.644826][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.644826][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.644826][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.644826][ T254] netlink_unicast+0x449/0x710 [ 1394.644826][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.644826][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.644826][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.644826][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.644826][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.644826][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.644826][ T254] [ 1394.647192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.647192][ T254] netdev_get_by_index+0x5e/0x80 [ 1394.647192][ T254] fib6_nh_init+0x3d8/0x1580 [ 1394.647192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1394.647192][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1394.647192][ T254] ipv6_add_addr+0x411/0x2000 [ 1394.647192][ T254] inet6_addr_add+0x30e/0xa40 [ 1394.647192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.647192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.647192][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.647192][ T254] netlink_unicast+0x449/0x710 [ 1394.647192][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.647192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.647192][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.647192][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.647192][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.647192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.647192][ T254] [ 1394.649465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.649465][ T254] netdev_get_by_index+0x5e/0x80 [ 1394.649465][ T254] fib6_nh_init+0x3d8/0x1580 [ 1394.649465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1394.649465][ T254] ip6_route_add+0x1c/0x140 [ 1394.649465][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1394.649465][ T254] addrconf_add_dev+0xe2/0x170 [ 1394.649465][ T254] inet6_addr_add+0x12f/0xa40 [ 1394.649465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1394.649465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.649465][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.649465][ T254] netlink_unicast+0x449/0x710 [ 1394.649465][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.649465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.649465][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.649465][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.649465][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.649465][ T254] [ 1394.651712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.651712][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1394.651712][ T254] ipv6_find_idev+0x102/0x170 [ 1394.651712][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1394.651712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.651712][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.651712][ T254] netlink_unicast+0x449/0x710 [ 1394.651712][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.651712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.651712][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.651712][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.651712][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.651712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.651712][ T254] [ 1394.653459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1394.653459][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1394.653459][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1394.653459][ T254] ipv6_find_idev+0x102/0x170 [ 1394.653459][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1394.653459][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1394.653459][ T254] netlink_rcv_skb+0x130/0x360 [ 1394.653459][ T254] netlink_unicast+0x449/0x710 [ 1394.653459][ T254] netlink_sendmsg+0x723/0xbe0 [ 1394.653459][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1394.653459][ T254] ___sys_sendmsg+0xee/0x170 [ 1394.653459][ T254] __sys_sendmsg+0xcd/0x170 [ 1394.653459][ T254] do_syscall_64+0xc6/0x1e0 [ 1394.653459][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1394.653459][ T254] [ 1404.679860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1404.680342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.680342][ T254] dst_init+0x84/0x4a0 [ 1404.680342][ T254] dst_alloc+0x97/0x150 [ 1404.680342][ T254] ip6_dst_alloc+0x23/0x90 [ 1404.680342][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1404.680342][ T254] ip6_pol_route+0x56f/0x840 [ 1404.680342][ T254] fib6_rule_lookup+0x334/0x630 [ 1404.680342][ T254] ip6_route_output_flags+0x259/0x480 [ 1404.680342][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1404.680342][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1404.680342][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.680342][ T254] netlink_unicast+0x449/0x710 [ 1404.680342][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.680342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.680342][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.680342][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.680342][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.680342][ T254] [ 1404.682586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.682586][ T254] netdev_get_by_index+0x5e/0x80 [ 1404.682586][ T254] fib6_nh_init+0x3d8/0x1580 [ 1404.682586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1404.682586][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1404.682586][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1404.682586][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1404.682586][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1404.682586][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1404.682586][ T254] addrconf_dad_begin+0x310/0x670 [ 1404.682586][ T254] addrconf_dad_work+0x10b/0xab0 [ 1404.682586][ T254] process_one_work+0x84d/0x18a0 [ 1404.682586][ T254] worker_thread+0x587/0xd30 [ 1404.682586][ T254] kthread+0x28a/0x350 [ 1404.682586][ T254] ret_from_fork+0x31/0x70 [ 1404.682586][ T254] ret_from_fork_asm+0x1a/0x30 [ 1404.682586][ T254] [ 1404.684768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.684768][ T254] netdev_get_by_index+0x5e/0x80 [ 1404.684768][ T254] fib6_nh_init+0x3d8/0x1580 [ 1404.684768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1404.684768][ T254] ip6_route_add+0x1c/0x140 [ 1404.684768][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1404.684768][ T254] inet6_addr_add+0x4f8/0xa40 [ 1404.684768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1404.684768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1404.684768][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.684768][ T254] netlink_unicast+0x449/0x710 [ 1404.684768][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.684768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.684768][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.684768][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.684768][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.684768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1404.684768][ T254] [ 1404.687079][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.687079][ T254] netdev_get_by_index+0x5e/0x80 [ 1404.687079][ T254] fib6_nh_init+0x3d8/0x1580 [ 1404.687079][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1404.687079][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1404.687079][ T254] ipv6_add_addr+0x411/0x2000 [ 1404.687079][ T254] inet6_addr_add+0x30e/0xa40 [ 1404.687079][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1404.687079][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1404.687079][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.687079][ T254] netlink_unicast+0x449/0x710 [ 1404.687079][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.687079][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.687079][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.687079][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.687079][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.687079][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1404.687079][ T254] [ 1404.689354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.689354][ T254] netdev_get_by_index+0x5e/0x80 [ 1404.689354][ T254] fib6_nh_init+0x3d8/0x1580 [ 1404.689354][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1404.689354][ T254] ip6_route_add+0x1c/0x140 [ 1404.689354][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1404.689354][ T254] addrconf_add_dev+0xe2/0x170 [ 1404.689354][ T254] inet6_addr_add+0x12f/0xa40 [ 1404.689354][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1404.689354][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1404.689354][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.689354][ T254] netlink_unicast+0x449/0x710 [ 1404.689354][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.689354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.689354][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.689354][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.689354][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.689354][ T254] [ 1404.691586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.691586][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1404.691586][ T254] ipv6_find_idev+0x102/0x170 [ 1404.691586][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1404.691586][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1404.691586][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.691586][ T254] netlink_unicast+0x449/0x710 [ 1404.691586][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.691586][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.691586][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.691586][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.691586][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.691586][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1404.691586][ T254] [ 1404.693383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1404.693383][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1404.693383][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1404.693383][ T254] ipv6_find_idev+0x102/0x170 [ 1404.693383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1404.693383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1404.693383][ T254] netlink_rcv_skb+0x130/0x360 [ 1404.693383][ T254] netlink_unicast+0x449/0x710 [ 1404.693383][ T254] netlink_sendmsg+0x723/0xbe0 [ 1404.693383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1404.693383][ T254] ___sys_sendmsg+0xee/0x170 [ 1404.693383][ T254] __sys_sendmsg+0xcd/0x170 [ 1404.693383][ T254] do_syscall_64+0xc6/0x1e0 [ 1404.693383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1404.693383][ T254] [ 1414.935777][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1414.936270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.936270][ T254] dst_init+0x84/0x4a0 [ 1414.936270][ T254] dst_alloc+0x97/0x150 [ 1414.936270][ T254] ip6_dst_alloc+0x23/0x90 [ 1414.936270][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1414.936270][ T254] ip6_pol_route+0x56f/0x840 [ 1414.936270][ T254] fib6_rule_lookup+0x334/0x630 [ 1414.936270][ T254] ip6_route_output_flags+0x259/0x480 [ 1414.936270][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1414.936270][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1414.936270][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.936270][ T254] netlink_unicast+0x449/0x710 [ 1414.936270][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.936270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.936270][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.936270][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.936270][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.936270][ T254] [ 1414.938499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.938499][ T254] netdev_get_by_index+0x5e/0x80 [ 1414.938499][ T254] fib6_nh_init+0x3d8/0x1580 [ 1414.938499][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1414.938499][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1414.938499][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1414.938499][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1414.938499][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1414.938499][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1414.938499][ T254] addrconf_dad_begin+0x310/0x670 [ 1414.938499][ T254] addrconf_dad_work+0x10b/0xab0 [ 1414.938499][ T254] process_one_work+0x84d/0x18a0 [ 1414.938499][ T254] worker_thread+0x587/0xd30 [ 1414.938499][ T254] kthread+0x28a/0x350 [ 1414.938499][ T254] ret_from_fork+0x31/0x70 [ 1414.938499][ T254] ret_from_fork_asm+0x1a/0x30 [ 1414.938499][ T254] [ 1414.940669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.940669][ T254] netdev_get_by_index+0x5e/0x80 [ 1414.940669][ T254] fib6_nh_init+0x3d8/0x1580 [ 1414.940669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1414.940669][ T254] ip6_route_add+0x1c/0x140 [ 1414.940669][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1414.940669][ T254] inet6_addr_add+0x4f8/0xa40 [ 1414.940669][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1414.940669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1414.940669][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.940669][ T254] netlink_unicast+0x449/0x710 [ 1414.940669][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.940669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.940669][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.940669][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.940669][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.940669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1414.940669][ T254] [ 1414.942936][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.942936][ T254] netdev_get_by_index+0x5e/0x80 [ 1414.942936][ T254] fib6_nh_init+0x3d8/0x1580 [ 1414.942936][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1414.942936][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1414.942936][ T254] ipv6_add_addr+0x411/0x2000 [ 1414.942936][ T254] inet6_addr_add+0x30e/0xa40 [ 1414.942936][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1414.942936][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1414.942936][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.942936][ T254] netlink_unicast+0x449/0x710 [ 1414.942936][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.942936][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.942936][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.942936][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.942936][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.942936][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1414.942936][ T254] [ 1414.945197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.945197][ T254] netdev_get_by_index+0x5e/0x80 [ 1414.945197][ T254] fib6_nh_init+0x3d8/0x1580 [ 1414.945197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1414.945197][ T254] ip6_route_add+0x1c/0x140 [ 1414.945197][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1414.945197][ T254] addrconf_add_dev+0xe2/0x170 [ 1414.945197][ T254] inet6_addr_add+0x12f/0xa40 [ 1414.945197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1414.945197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1414.945197][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.945197][ T254] netlink_unicast+0x449/0x710 [ 1414.945197][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.945197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.945197][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.945197][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.945197][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.945197][ T254] [ 1414.947432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.947432][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1414.947432][ T254] ipv6_find_idev+0x102/0x170 [ 1414.947432][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1414.947432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1414.947432][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.947432][ T254] netlink_unicast+0x449/0x710 [ 1414.947432][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.947432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.947432][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.947432][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.947432][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.947432][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1414.947432][ T254] [ 1414.949176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1414.949176][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1414.949176][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1414.949176][ T254] ipv6_find_idev+0x102/0x170 [ 1414.949176][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1414.949176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1414.949176][ T254] netlink_rcv_skb+0x130/0x360 [ 1414.949176][ T254] netlink_unicast+0x449/0x710 [ 1414.949176][ T254] netlink_sendmsg+0x723/0xbe0 [ 1414.949176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1414.949176][ T254] ___sys_sendmsg+0xee/0x170 [ 1414.949176][ T254] __sys_sendmsg+0xcd/0x170 [ 1414.949176][ T254] do_syscall_64+0xc6/0x1e0 [ 1414.949176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1414.949176][ T254] [ 1425.191856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1425.192387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.192387][ T254] dst_init+0x84/0x4a0 [ 1425.192387][ T254] dst_alloc+0x97/0x150 [ 1425.192387][ T254] ip6_dst_alloc+0x23/0x90 [ 1425.192387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1425.192387][ T254] ip6_pol_route+0x56f/0x840 [ 1425.192387][ T254] fib6_rule_lookup+0x334/0x630 [ 1425.192387][ T254] ip6_route_output_flags+0x259/0x480 [ 1425.192387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1425.192387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1425.192387][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.192387][ T254] netlink_unicast+0x449/0x710 [ 1425.192387][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.192387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.192387][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.192387][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.192387][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.192387][ T254] [ 1425.194578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.194578][ T254] netdev_get_by_index+0x5e/0x80 [ 1425.194578][ T254] fib6_nh_init+0x3d8/0x1580 [ 1425.194578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1425.194578][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1425.194578][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1425.194578][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1425.194578][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1425.194578][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1425.194578][ T254] addrconf_dad_begin+0x310/0x670 [ 1425.194578][ T254] addrconf_dad_work+0x10b/0xab0 [ 1425.194578][ T254] process_one_work+0x84d/0x18a0 [ 1425.194578][ T254] worker_thread+0x587/0xd30 [ 1425.194578][ T254] kthread+0x28a/0x350 [ 1425.194578][ T254] ret_from_fork+0x31/0x70 [ 1425.194578][ T254] ret_from_fork_asm+0x1a/0x30 [ 1425.194578][ T254] [ 1425.196743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.196743][ T254] netdev_get_by_index+0x5e/0x80 [ 1425.196743][ T254] fib6_nh_init+0x3d8/0x1580 [ 1425.196743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1425.196743][ T254] ip6_route_add+0x1c/0x140 [ 1425.196743][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1425.196743][ T254] inet6_addr_add+0x4f8/0xa40 [ 1425.196743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.196743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.196743][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.196743][ T254] netlink_unicast+0x449/0x710 [ 1425.196743][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.196743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.196743][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.196743][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.196743][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.196743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.196743][ T254] [ 1425.198998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.198998][ T254] netdev_get_by_index+0x5e/0x80 [ 1425.198998][ T254] fib6_nh_init+0x3d8/0x1580 [ 1425.198998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1425.198998][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1425.198998][ T254] ipv6_add_addr+0x411/0x2000 [ 1425.198998][ T254] inet6_addr_add+0x30e/0xa40 [ 1425.198998][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.198998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.198998][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.198998][ T254] netlink_unicast+0x449/0x710 [ 1425.198998][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.198998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.198998][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.198998][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.198998][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.198998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.198998][ T254] [ 1425.201273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.201273][ T254] netdev_get_by_index+0x5e/0x80 [ 1425.201273][ T254] fib6_nh_init+0x3d8/0x1580 [ 1425.201273][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1425.201273][ T254] ip6_route_add+0x1c/0x140 [ 1425.201273][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1425.201273][ T254] addrconf_add_dev+0xe2/0x170 [ 1425.201273][ T254] inet6_addr_add+0x12f/0xa40 [ 1425.201273][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1425.201273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.201273][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.201273][ T254] netlink_unicast+0x449/0x710 [ 1425.201273][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.201273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.201273][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.201273][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.201273][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.201273][ T254] [ 1425.203478][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.203478][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1425.203478][ T254] ipv6_find_idev+0x102/0x170 [ 1425.203478][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1425.203478][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.203478][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.203478][ T254] netlink_unicast+0x449/0x710 [ 1425.203478][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.203478][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.203478][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.203478][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.203478][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.203478][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.203478][ T254] [ 1425.205207][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1425.205207][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1425.205207][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1425.205207][ T254] ipv6_find_idev+0x102/0x170 [ 1425.205207][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1425.205207][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1425.205207][ T254] netlink_rcv_skb+0x130/0x360 [ 1425.205207][ T254] netlink_unicast+0x449/0x710 [ 1425.205207][ T254] netlink_sendmsg+0x723/0xbe0 [ 1425.205207][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1425.205207][ T254] ___sys_sendmsg+0xee/0x170 [ 1425.205207][ T254] __sys_sendmsg+0xcd/0x170 [ 1425.205207][ T254] do_syscall_64+0xc6/0x1e0 [ 1425.205207][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1425.205207][ T254] [ 1435.247894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1435.248443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.248443][ T254] dst_init+0x84/0x4a0 [ 1435.248443][ T254] dst_alloc+0x97/0x150 [ 1435.248443][ T254] ip6_dst_alloc+0x23/0x90 [ 1435.248443][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1435.248443][ T254] ip6_pol_route+0x56f/0x840 [ 1435.248443][ T254] fib6_rule_lookup+0x334/0x630 [ 1435.248443][ T254] ip6_route_output_flags+0x259/0x480 [ 1435.248443][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1435.248443][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1435.248443][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.248443][ T254] netlink_unicast+0x449/0x710 [ 1435.248443][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.248443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.248443][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.248443][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.248443][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.248443][ T254] [ 1435.250677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.250677][ T254] netdev_get_by_index+0x5e/0x80 [ 1435.250677][ T254] fib6_nh_init+0x3d8/0x1580 [ 1435.250677][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1435.250677][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1435.250677][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1435.250677][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1435.250677][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1435.250677][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1435.250677][ T254] addrconf_dad_begin+0x310/0x670 [ 1435.250677][ T254] addrconf_dad_work+0x10b/0xab0 [ 1435.250677][ T254] process_one_work+0x84d/0x18a0 [ 1435.250677][ T254] worker_thread+0x587/0xd30 [ 1435.250677][ T254] kthread+0x28a/0x350 [ 1435.250677][ T254] ret_from_fork+0x31/0x70 [ 1435.250677][ T254] ret_from_fork_asm+0x1a/0x30 [ 1435.250677][ T254] [ 1435.253770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.253770][ T254] netdev_get_by_index+0x5e/0x80 [ 1435.253770][ T254] fib6_nh_init+0x3d8/0x1580 [ 1435.253770][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1435.253770][ T254] ip6_route_add+0x1c/0x140 [ 1435.253770][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1435.253770][ T254] inet6_addr_add+0x4f8/0xa40 [ 1435.253770][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.253770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.253770][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.253770][ T254] netlink_unicast+0x449/0x710 [ 1435.253770][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.253770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.253770][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.253770][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.253770][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.253770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.253770][ T254] [ 1435.257991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.257991][ T254] netdev_get_by_index+0x5e/0x80 [ 1435.257991][ T254] fib6_nh_init+0x3d8/0x1580 [ 1435.257991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1435.257991][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1435.257991][ T254] ipv6_add_addr+0x411/0x2000 [ 1435.257991][ T254] inet6_addr_add+0x30e/0xa40 [ 1435.257991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.257991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.257991][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.257991][ T254] netlink_unicast+0x449/0x710 [ 1435.257991][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.257991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.257991][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.257991][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.257991][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.257991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.257991][ T254] [ 1435.262255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.262255][ T254] netdev_get_by_index+0x5e/0x80 [ 1435.262255][ T254] fib6_nh_init+0x3d8/0x1580 [ 1435.262255][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1435.262255][ T254] ip6_route_add+0x1c/0x140 [ 1435.262255][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1435.262255][ T254] addrconf_add_dev+0xe2/0x170 [ 1435.262255][ T254] inet6_addr_add+0x12f/0xa40 [ 1435.262255][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1435.262255][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.262255][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.262255][ T254] netlink_unicast+0x449/0x710 [ 1435.262255][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.262255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.262255][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.262255][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.262255][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.262255][ T254] [ 1435.266450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.266450][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1435.266450][ T254] ipv6_find_idev+0x102/0x170 [ 1435.266450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1435.266450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.266450][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.266450][ T254] netlink_unicast+0x449/0x710 [ 1435.266450][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.266450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.266450][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.266450][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.266450][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.266450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.266450][ T254] [ 1435.269703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1435.269703][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1435.269703][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1435.269703][ T254] ipv6_find_idev+0x102/0x170 [ 1435.269703][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1435.269703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1435.269703][ T254] netlink_rcv_skb+0x130/0x360 [ 1435.269703][ T254] netlink_unicast+0x449/0x710 [ 1435.269703][ T254] netlink_sendmsg+0x723/0xbe0 [ 1435.269703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1435.269703][ T254] ___sys_sendmsg+0xee/0x170 [ 1435.269703][ T254] __sys_sendmsg+0xcd/0x170 [ 1435.269703][ T254] do_syscall_64+0xc6/0x1e0 [ 1435.269703][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1435.269703][ T254] [ 1445.511848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1445.512390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.512390][ T254] dst_init+0x84/0x4a0 [ 1445.512390][ T254] dst_alloc+0x97/0x150 [ 1445.512390][ T254] ip6_dst_alloc+0x23/0x90 [ 1445.512390][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1445.512390][ T254] ip6_pol_route+0x56f/0x840 [ 1445.512390][ T254] fib6_rule_lookup+0x334/0x630 [ 1445.512390][ T254] ip6_route_output_flags+0x259/0x480 [ 1445.512390][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1445.512390][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1445.512390][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.512390][ T254] netlink_unicast+0x449/0x710 [ 1445.512390][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.512390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.512390][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.512390][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.512390][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.512390][ T254] [ 1445.514608][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.514608][ T254] netdev_get_by_index+0x5e/0x80 [ 1445.514608][ T254] fib6_nh_init+0x3d8/0x1580 [ 1445.514608][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1445.514608][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1445.514608][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1445.514608][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1445.514608][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1445.514608][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1445.514608][ T254] addrconf_dad_begin+0x310/0x670 [ 1445.514608][ T254] addrconf_dad_work+0x10b/0xab0 [ 1445.514608][ T254] process_one_work+0x84d/0x18a0 [ 1445.514608][ T254] worker_thread+0x587/0xd30 [ 1445.514608][ T254] kthread+0x28a/0x350 [ 1445.514608][ T254] ret_from_fork+0x31/0x70 [ 1445.514608][ T254] ret_from_fork_asm+0x1a/0x30 [ 1445.514608][ T254] [ 1445.516779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.516779][ T254] netdev_get_by_index+0x5e/0x80 [ 1445.516779][ T254] fib6_nh_init+0x3d8/0x1580 [ 1445.516779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1445.516779][ T254] ip6_route_add+0x1c/0x140 [ 1445.516779][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1445.516779][ T254] inet6_addr_add+0x4f8/0xa40 [ 1445.516779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.516779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.516779][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.516779][ T254] netlink_unicast+0x449/0x710 [ 1445.516779][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.516779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.516779][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.516779][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.516779][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.516779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.516779][ T254] [ 1445.519034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.519034][ T254] netdev_get_by_index+0x5e/0x80 [ 1445.519034][ T254] fib6_nh_init+0x3d8/0x1580 [ 1445.519034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1445.519034][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1445.519034][ T254] ipv6_add_addr+0x411/0x2000 [ 1445.519034][ T254] inet6_addr_add+0x30e/0xa40 [ 1445.519034][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.519034][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.519034][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.519034][ T254] netlink_unicast+0x449/0x710 [ 1445.519034][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.519034][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.519034][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.519034][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.519034][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.519034][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.519034][ T254] [ 1445.521399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.521399][ T254] netdev_get_by_index+0x5e/0x80 [ 1445.521399][ T254] fib6_nh_init+0x3d8/0x1580 [ 1445.521399][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1445.521399][ T254] ip6_route_add+0x1c/0x140 [ 1445.521399][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1445.521399][ T254] addrconf_add_dev+0xe2/0x170 [ 1445.521399][ T254] inet6_addr_add+0x12f/0xa40 [ 1445.521399][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1445.521399][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.521399][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.521399][ T254] netlink_unicast+0x449/0x710 [ 1445.521399][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.521399][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.521399][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.521399][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.521399][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.521399][ T254] [ 1445.523614][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.523614][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1445.523614][ T254] ipv6_find_idev+0x102/0x170 [ 1445.523614][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1445.523614][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.523614][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.523614][ T254] netlink_unicast+0x449/0x710 [ 1445.523614][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.523614][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.523614][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.523614][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.523614][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.523614][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.523614][ T254] [ 1445.525342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1445.525342][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1445.525342][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1445.525342][ T254] ipv6_find_idev+0x102/0x170 [ 1445.525342][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1445.525342][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1445.525342][ T254] netlink_rcv_skb+0x130/0x360 [ 1445.525342][ T254] netlink_unicast+0x449/0x710 [ 1445.525342][ T254] netlink_sendmsg+0x723/0xbe0 [ 1445.525342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1445.525342][ T254] ___sys_sendmsg+0xee/0x170 [ 1445.525342][ T254] __sys_sendmsg+0xcd/0x170 [ 1445.525342][ T254] do_syscall_64+0xc6/0x1e0 [ 1445.525342][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1445.525342][ T254] [ 1455.767876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1455.768407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.768407][ T254] dst_init+0x84/0x4a0 [ 1455.768407][ T254] dst_alloc+0x97/0x150 [ 1455.768407][ T254] ip6_dst_alloc+0x23/0x90 [ 1455.768407][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1455.768407][ T254] ip6_pol_route+0x56f/0x840 [ 1455.768407][ T254] fib6_rule_lookup+0x334/0x630 [ 1455.768407][ T254] ip6_route_output_flags+0x259/0x480 [ 1455.768407][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1455.768407][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1455.768407][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.768407][ T254] netlink_unicast+0x449/0x710 [ 1455.768407][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.768407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.768407][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.768407][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.768407][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.768407][ T254] [ 1455.772653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.772653][ T254] netdev_get_by_index+0x5e/0x80 [ 1455.772653][ T254] fib6_nh_init+0x3d8/0x1580 [ 1455.772653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1455.772653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1455.772653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1455.772653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1455.772653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1455.772653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1455.772653][ T254] addrconf_dad_begin+0x310/0x670 [ 1455.772653][ T254] addrconf_dad_work+0x10b/0xab0 [ 1455.772653][ T254] process_one_work+0x84d/0x18a0 [ 1455.772653][ T254] worker_thread+0x587/0xd30 [ 1455.772653][ T254] kthread+0x28a/0x350 [ 1455.772653][ T254] ret_from_fork+0x31/0x70 [ 1455.772653][ T254] ret_from_fork_asm+0x1a/0x30 [ 1455.772653][ T254] [ 1455.774863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.774863][ T254] netdev_get_by_index+0x5e/0x80 [ 1455.774863][ T254] fib6_nh_init+0x3d8/0x1580 [ 1455.774863][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1455.774863][ T254] ip6_route_add+0x1c/0x140 [ 1455.774863][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1455.774863][ T254] inet6_addr_add+0x4f8/0xa40 [ 1455.774863][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1455.774863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1455.774863][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.774863][ T254] netlink_unicast+0x449/0x710 [ 1455.774863][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.774863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.774863][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.774863][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.774863][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.774863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1455.774863][ T254] [ 1455.777229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.777229][ T254] netdev_get_by_index+0x5e/0x80 [ 1455.777229][ T254] fib6_nh_init+0x3d8/0x1580 [ 1455.777229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1455.777229][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1455.777229][ T254] ipv6_add_addr+0x411/0x2000 [ 1455.777229][ T254] inet6_addr_add+0x30e/0xa40 [ 1455.777229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1455.777229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1455.777229][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.777229][ T254] netlink_unicast+0x449/0x710 [ 1455.777229][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.777229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.777229][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.777229][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.777229][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.777229][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1455.777229][ T254] [ 1455.779467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.779467][ T254] netdev_get_by_index+0x5e/0x80 [ 1455.779467][ T254] fib6_nh_init+0x3d8/0x1580 [ 1455.779467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1455.779467][ T254] ip6_route_add+0x1c/0x140 [ 1455.779467][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1455.779467][ T254] addrconf_add_dev+0xe2/0x170 [ 1455.779467][ T254] inet6_addr_add+0x12f/0xa40 [ 1455.779467][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1455.779467][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1455.779467][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.779467][ T254] netlink_unicast+0x449/0x710 [ 1455.779467][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.779467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.779467][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.779467][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.779467][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.779467][ T254] [ 1455.781676][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.781676][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1455.781676][ T254] ipv6_find_idev+0x102/0x170 [ 1455.781676][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1455.781676][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1455.781676][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.781676][ T254] netlink_unicast+0x449/0x710 [ 1455.781676][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.781676][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.781676][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.781676][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.781676][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.781676][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1455.781676][ T254] [ 1455.783439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1455.783439][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1455.783439][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1455.783439][ T254] ipv6_find_idev+0x102/0x170 [ 1455.783439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1455.783439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1455.783439][ T254] netlink_rcv_skb+0x130/0x360 [ 1455.783439][ T254] netlink_unicast+0x449/0x710 [ 1455.783439][ T254] netlink_sendmsg+0x723/0xbe0 [ 1455.783439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1455.783439][ T254] ___sys_sendmsg+0xee/0x170 [ 1455.783439][ T254] __sys_sendmsg+0xcd/0x170 [ 1455.783439][ T254] do_syscall_64+0xc6/0x1e0 [ 1455.783439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1455.783439][ T254] [ 1466.023848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1466.024381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.024381][ T254] dst_init+0x84/0x4a0 [ 1466.024381][ T254] dst_alloc+0x97/0x150 [ 1466.024381][ T254] ip6_dst_alloc+0x23/0x90 [ 1466.024381][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1466.024381][ T254] ip6_pol_route+0x56f/0x840 [ 1466.024381][ T254] fib6_rule_lookup+0x334/0x630 [ 1466.024381][ T254] ip6_route_output_flags+0x259/0x480 [ 1466.024381][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1466.024381][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1466.024381][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.024381][ T254] netlink_unicast+0x449/0x710 [ 1466.024381][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.024381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.024381][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.024381][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.024381][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.024381][ T254] [ 1466.026604][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.026604][ T254] netdev_get_by_index+0x5e/0x80 [ 1466.026604][ T254] fib6_nh_init+0x3d8/0x1580 [ 1466.026604][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1466.026604][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1466.026604][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1466.026604][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1466.026604][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1466.026604][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1466.026604][ T254] addrconf_dad_begin+0x310/0x670 [ 1466.026604][ T254] addrconf_dad_work+0x10b/0xab0 [ 1466.026604][ T254] process_one_work+0x84d/0x18a0 [ 1466.026604][ T254] worker_thread+0x587/0xd30 [ 1466.026604][ T254] kthread+0x28a/0x350 [ 1466.026604][ T254] ret_from_fork+0x31/0x70 [ 1466.026604][ T254] ret_from_fork_asm+0x1a/0x30 [ 1466.026604][ T254] [ 1466.028756][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.028756][ T254] netdev_get_by_index+0x5e/0x80 [ 1466.028756][ T254] fib6_nh_init+0x3d8/0x1580 [ 1466.028756][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1466.028756][ T254] ip6_route_add+0x1c/0x140 [ 1466.028756][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1466.028756][ T254] inet6_addr_add+0x4f8/0xa40 [ 1466.028756][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.028756][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.028756][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.028756][ T254] netlink_unicast+0x449/0x710 [ 1466.028756][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.028756][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.028756][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.028756][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.028756][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.028756][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.028756][ T254] [ 1466.030993][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.030993][ T254] netdev_get_by_index+0x5e/0x80 [ 1466.030993][ T254] fib6_nh_init+0x3d8/0x1580 [ 1466.030993][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1466.030993][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1466.030993][ T254] ipv6_add_addr+0x411/0x2000 [ 1466.030993][ T254] inet6_addr_add+0x30e/0xa40 [ 1466.030993][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.030993][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.030993][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.030993][ T254] netlink_unicast+0x449/0x710 [ 1466.030993][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.030993][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.030993][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.030993][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.030993][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.030993][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.030993][ T254] [ 1466.033346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.033346][ T254] netdev_get_by_index+0x5e/0x80 [ 1466.033346][ T254] fib6_nh_init+0x3d8/0x1580 [ 1466.033346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1466.033346][ T254] ip6_route_add+0x1c/0x140 [ 1466.033346][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1466.033346][ T254] addrconf_add_dev+0xe2/0x170 [ 1466.033346][ T254] inet6_addr_add+0x12f/0xa40 [ 1466.033346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1466.033346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.033346][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.033346][ T254] netlink_unicast+0x449/0x710 [ 1466.033346][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.033346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.033346][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.033346][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.033346][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.033346][ T254] [ 1466.035540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.035540][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1466.035540][ T254] ipv6_find_idev+0x102/0x170 [ 1466.035540][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1466.035540][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.035540][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.035540][ T254] netlink_unicast+0x449/0x710 [ 1466.035540][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.035540][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.035540][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.035540][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.035540][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.035540][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.035540][ T254] [ 1466.037280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1466.037280][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1466.037280][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1466.037280][ T254] ipv6_find_idev+0x102/0x170 [ 1466.037280][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1466.037280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1466.037280][ T254] netlink_rcv_skb+0x130/0x360 [ 1466.037280][ T254] netlink_unicast+0x449/0x710 [ 1466.037280][ T254] netlink_sendmsg+0x723/0xbe0 [ 1466.037280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1466.037280][ T254] ___sys_sendmsg+0xee/0x170 [ 1466.037280][ T254] __sys_sendmsg+0xcd/0x170 [ 1466.037280][ T254] do_syscall_64+0xc6/0x1e0 [ 1466.037280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1466.037280][ T254] [ 1476.279799][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1476.280332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.280332][ T254] dst_init+0x84/0x4a0 [ 1476.280332][ T254] dst_alloc+0x97/0x150 [ 1476.280332][ T254] ip6_dst_alloc+0x23/0x90 [ 1476.280332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1476.280332][ T254] ip6_pol_route+0x56f/0x840 [ 1476.280332][ T254] fib6_rule_lookup+0x334/0x630 [ 1476.280332][ T254] ip6_route_output_flags+0x259/0x480 [ 1476.280332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1476.280332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1476.280332][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.280332][ T254] netlink_unicast+0x449/0x710 [ 1476.280332][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.280332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.280332][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.280332][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.280332][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.280332][ T254] [ 1476.282549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.282549][ T254] netdev_get_by_index+0x5e/0x80 [ 1476.282549][ T254] fib6_nh_init+0x3d8/0x1580 [ 1476.282549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1476.282549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1476.282549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1476.282549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1476.282549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1476.282549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1476.282549][ T254] addrconf_dad_begin+0x310/0x670 [ 1476.282549][ T254] addrconf_dad_work+0x10b/0xab0 [ 1476.282549][ T254] process_one_work+0x84d/0x18a0 [ 1476.282549][ T254] worker_thread+0x587/0xd30 [ 1476.282549][ T254] kthread+0x28a/0x350 [ 1476.282549][ T254] ret_from_fork+0x31/0x70 [ 1476.282549][ T254] ret_from_fork_asm+0x1a/0x30 [ 1476.282549][ T254] [ 1476.284694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.284694][ T254] netdev_get_by_index+0x5e/0x80 [ 1476.284694][ T254] fib6_nh_init+0x3d8/0x1580 [ 1476.284694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1476.284694][ T254] ip6_route_add+0x1c/0x140 [ 1476.284694][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1476.284694][ T254] inet6_addr_add+0x4f8/0xa40 [ 1476.284694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.284694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.284694][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.284694][ T254] netlink_unicast+0x449/0x710 [ 1476.284694][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.284694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.284694][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.284694][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.284694][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.284694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.284694][ T254] [ 1476.286985][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.286985][ T254] netdev_get_by_index+0x5e/0x80 [ 1476.286985][ T254] fib6_nh_init+0x3d8/0x1580 [ 1476.286985][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1476.286985][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1476.286985][ T254] ipv6_add_addr+0x411/0x2000 [ 1476.286985][ T254] inet6_addr_add+0x30e/0xa40 [ 1476.286985][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.286985][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.286985][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.286985][ T254] netlink_unicast+0x449/0x710 [ 1476.286985][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.286985][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.286985][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.286985][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.286985][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.286985][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.286985][ T254] [ 1476.289226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.289226][ T254] netdev_get_by_index+0x5e/0x80 [ 1476.289226][ T254] fib6_nh_init+0x3d8/0x1580 [ 1476.289226][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1476.289226][ T254] ip6_route_add+0x1c/0x140 [ 1476.289226][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1476.289226][ T254] addrconf_add_dev+0xe2/0x170 [ 1476.289226][ T254] inet6_addr_add+0x12f/0xa40 [ 1476.289226][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1476.289226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.289226][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.289226][ T254] netlink_unicast+0x449/0x710 [ 1476.289226][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.289226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.289226][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.289226][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.289226][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.289226][ T254] [ 1476.291441][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.291441][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1476.291441][ T254] ipv6_find_idev+0x102/0x170 [ 1476.291441][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1476.291441][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.291441][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.291441][ T254] netlink_unicast+0x449/0x710 [ 1476.291441][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.291441][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.291441][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.291441][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.291441][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.291441][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.291441][ T254] [ 1476.293166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1476.293166][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1476.293166][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1476.293166][ T254] ipv6_find_idev+0x102/0x170 [ 1476.293166][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1476.293166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1476.293166][ T254] netlink_rcv_skb+0x130/0x360 [ 1476.293166][ T254] netlink_unicast+0x449/0x710 [ 1476.293166][ T254] netlink_sendmsg+0x723/0xbe0 [ 1476.293166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1476.293166][ T254] ___sys_sendmsg+0xee/0x170 [ 1476.293166][ T254] __sys_sendmsg+0xcd/0x170 [ 1476.293166][ T254] do_syscall_64+0xc6/0x1e0 [ 1476.293166][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1476.293166][ T254] [ 1486.367778][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1486.368319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.368319][ T254] dst_init+0x84/0x4a0 [ 1486.368319][ T254] dst_alloc+0x97/0x150 [ 1486.368319][ T254] ip6_dst_alloc+0x23/0x90 [ 1486.368319][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1486.368319][ T254] ip6_pol_route+0x56f/0x840 [ 1486.368319][ T254] fib6_rule_lookup+0x334/0x630 [ 1486.368319][ T254] ip6_route_output_flags+0x259/0x480 [ 1486.368319][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1486.368319][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1486.368319][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.368319][ T254] netlink_unicast+0x449/0x710 [ 1486.368319][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.368319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.368319][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.368319][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.368319][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.368319][ T254] [ 1486.370532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.370532][ T254] netdev_get_by_index+0x5e/0x80 [ 1486.370532][ T254] fib6_nh_init+0x3d8/0x1580 [ 1486.370532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1486.370532][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1486.370532][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1486.370532][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1486.370532][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1486.370532][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1486.370532][ T254] addrconf_dad_begin+0x310/0x670 [ 1486.370532][ T254] addrconf_dad_work+0x10b/0xab0 [ 1486.370532][ T254] process_one_work+0x84d/0x18a0 [ 1486.370532][ T254] worker_thread+0x587/0xd30 [ 1486.370532][ T254] kthread+0x28a/0x350 [ 1486.370532][ T254] ret_from_fork+0x31/0x70 [ 1486.370532][ T254] ret_from_fork_asm+0x1a/0x30 [ 1486.370532][ T254] [ 1486.372672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.372672][ T254] netdev_get_by_index+0x5e/0x80 [ 1486.372672][ T254] fib6_nh_init+0x3d8/0x1580 [ 1486.372672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1486.372672][ T254] ip6_route_add+0x1c/0x140 [ 1486.372672][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1486.372672][ T254] inet6_addr_add+0x4f8/0xa40 [ 1486.372672][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.372672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.372672][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.372672][ T254] netlink_unicast+0x449/0x710 [ 1486.372672][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.372672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.372672][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.372672][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.372672][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.372672][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.372672][ T254] [ 1486.375013][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.375013][ T254] netdev_get_by_index+0x5e/0x80 [ 1486.375013][ T254] fib6_nh_init+0x3d8/0x1580 [ 1486.375013][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1486.375013][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1486.375013][ T254] ipv6_add_addr+0x411/0x2000 [ 1486.375013][ T254] inet6_addr_add+0x30e/0xa40 [ 1486.375013][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.375013][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.375013][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.375013][ T254] netlink_unicast+0x449/0x710 [ 1486.375013][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.375013][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.375013][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.375013][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.375013][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.375013][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.375013][ T254] [ 1486.377251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.377251][ T254] netdev_get_by_index+0x5e/0x80 [ 1486.377251][ T254] fib6_nh_init+0x3d8/0x1580 [ 1486.377251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1486.377251][ T254] ip6_route_add+0x1c/0x140 [ 1486.377251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1486.377251][ T254] addrconf_add_dev+0xe2/0x170 [ 1486.377251][ T254] inet6_addr_add+0x12f/0xa40 [ 1486.377251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1486.377251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.377251][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.377251][ T254] netlink_unicast+0x449/0x710 [ 1486.377251][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.377251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.377251][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.377251][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.377251][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.377251][ T254] [ 1486.379459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.379459][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1486.379459][ T254] ipv6_find_idev+0x102/0x170 [ 1486.379459][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1486.379459][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.379459][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.379459][ T254] netlink_unicast+0x449/0x710 [ 1486.379459][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.379459][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.379459][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.379459][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.379459][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.379459][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.379459][ T254] [ 1486.381184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1486.381184][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1486.381184][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1486.381184][ T254] ipv6_find_idev+0x102/0x170 [ 1486.381184][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1486.381184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1486.381184][ T254] netlink_rcv_skb+0x130/0x360 [ 1486.381184][ T254] netlink_unicast+0x449/0x710 [ 1486.381184][ T254] netlink_sendmsg+0x723/0xbe0 [ 1486.381184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1486.381184][ T254] ___sys_sendmsg+0xee/0x170 [ 1486.381184][ T254] __sys_sendmsg+0xcd/0x170 [ 1486.381184][ T254] do_syscall_64+0xc6/0x1e0 [ 1486.381184][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1486.381184][ T254] [ 1496.623775][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1496.624319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.624319][ T254] dst_init+0x84/0x4a0 [ 1496.624319][ T254] dst_alloc+0x97/0x150 [ 1496.624319][ T254] ip6_dst_alloc+0x23/0x90 [ 1496.624319][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1496.624319][ T254] ip6_pol_route+0x56f/0x840 [ 1496.624319][ T254] fib6_rule_lookup+0x334/0x630 [ 1496.624319][ T254] ip6_route_output_flags+0x259/0x480 [ 1496.624319][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1496.624319][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1496.624319][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.624319][ T254] netlink_unicast+0x449/0x710 [ 1496.624319][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.624319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.624319][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.624319][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.624319][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.624319][ T254] [ 1496.626895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.626895][ T254] netdev_get_by_index+0x5e/0x80 [ 1496.626895][ T254] fib6_nh_init+0x3d8/0x1580 [ 1496.626895][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1496.626895][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1496.626895][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1496.626895][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1496.626895][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1496.626895][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1496.626895][ T254] addrconf_dad_begin+0x310/0x670 [ 1496.626895][ T254] addrconf_dad_work+0x10b/0xab0 [ 1496.626895][ T254] process_one_work+0x84d/0x18a0 [ 1496.626895][ T254] worker_thread+0x587/0xd30 [ 1496.626895][ T254] kthread+0x28a/0x350 [ 1496.626895][ T254] ret_from_fork+0x31/0x70 [ 1496.626895][ T254] ret_from_fork_asm+0x1a/0x30 [ 1496.626895][ T254] [ 1496.629059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.629059][ T254] netdev_get_by_index+0x5e/0x80 [ 1496.629059][ T254] fib6_nh_init+0x3d8/0x1580 [ 1496.629059][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1496.629059][ T254] ip6_route_add+0x1c/0x140 [ 1496.629059][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1496.629059][ T254] inet6_addr_add+0x4f8/0xa40 [ 1496.629059][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1496.629059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1496.629059][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.629059][ T254] netlink_unicast+0x449/0x710 [ 1496.629059][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.629059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.629059][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.629059][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.629059][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.629059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1496.629059][ T254] [ 1496.631300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.631300][ T254] netdev_get_by_index+0x5e/0x80 [ 1496.631300][ T254] fib6_nh_init+0x3d8/0x1580 [ 1496.631300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1496.631300][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1496.631300][ T254] ipv6_add_addr+0x411/0x2000 [ 1496.631300][ T254] inet6_addr_add+0x30e/0xa40 [ 1496.631300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1496.631300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1496.631300][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.631300][ T254] netlink_unicast+0x449/0x710 [ 1496.631300][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.631300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.631300][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.631300][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.631300][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.631300][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1496.631300][ T254] [ 1496.633530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.633530][ T254] netdev_get_by_index+0x5e/0x80 [ 1496.633530][ T254] fib6_nh_init+0x3d8/0x1580 [ 1496.633530][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1496.633530][ T254] ip6_route_add+0x1c/0x140 [ 1496.633530][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1496.633530][ T254] addrconf_add_dev+0xe2/0x170 [ 1496.633530][ T254] inet6_addr_add+0x12f/0xa40 [ 1496.633530][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1496.633530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1496.633530][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.633530][ T254] netlink_unicast+0x449/0x710 [ 1496.633530][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.633530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.633530][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.633530][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.633530][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.633530][ T254] [ 1496.635718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.635718][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1496.635718][ T254] ipv6_find_idev+0x102/0x170 [ 1496.635718][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1496.635718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1496.635718][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.635718][ T254] netlink_unicast+0x449/0x710 [ 1496.635718][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.635718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.635718][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.635718][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.635718][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.635718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1496.635718][ T254] [ 1496.637440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1496.637440][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1496.637440][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1496.637440][ T254] ipv6_find_idev+0x102/0x170 [ 1496.637440][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1496.637440][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1496.637440][ T254] netlink_rcv_skb+0x130/0x360 [ 1496.637440][ T254] netlink_unicast+0x449/0x710 [ 1496.637440][ T254] netlink_sendmsg+0x723/0xbe0 [ 1496.637440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1496.637440][ T254] ___sys_sendmsg+0xee/0x170 [ 1496.637440][ T254] __sys_sendmsg+0xcd/0x170 [ 1496.637440][ T254] do_syscall_64+0xc6/0x1e0 [ 1496.637440][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1496.637440][ T254] [ 1506.879852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1506.880392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.880392][ T254] dst_init+0x84/0x4a0 [ 1506.880392][ T254] dst_alloc+0x97/0x150 [ 1506.880392][ T254] ip6_dst_alloc+0x23/0x90 [ 1506.880392][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1506.880392][ T254] ip6_pol_route+0x56f/0x840 [ 1506.880392][ T254] fib6_rule_lookup+0x334/0x630 [ 1506.880392][ T254] ip6_route_output_flags+0x259/0x480 [ 1506.880392][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1506.880392][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1506.880392][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.880392][ T254] netlink_unicast+0x449/0x710 [ 1506.880392][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.880392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.880392][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.880392][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.880392][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.880392][ T254] [ 1506.882602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.882602][ T254] netdev_get_by_index+0x5e/0x80 [ 1506.882602][ T254] fib6_nh_init+0x3d8/0x1580 [ 1506.882602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1506.882602][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1506.882602][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1506.882602][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1506.882602][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1506.882602][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1506.882602][ T254] addrconf_dad_begin+0x310/0x670 [ 1506.882602][ T254] addrconf_dad_work+0x10b/0xab0 [ 1506.882602][ T254] process_one_work+0x84d/0x18a0 [ 1506.882602][ T254] worker_thread+0x587/0xd30 [ 1506.882602][ T254] kthread+0x28a/0x350 [ 1506.882602][ T254] ret_from_fork+0x31/0x70 [ 1506.882602][ T254] ret_from_fork_asm+0x1a/0x30 [ 1506.882602][ T254] [ 1506.884773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.884773][ T254] netdev_get_by_index+0x5e/0x80 [ 1506.884773][ T254] fib6_nh_init+0x3d8/0x1580 [ 1506.884773][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1506.884773][ T254] ip6_route_add+0x1c/0x140 [ 1506.884773][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1506.884773][ T254] inet6_addr_add+0x4f8/0xa40 [ 1506.884773][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1506.884773][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1506.884773][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.884773][ T254] netlink_unicast+0x449/0x710 [ 1506.884773][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.884773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.884773][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.884773][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.884773][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.884773][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1506.884773][ T254] [ 1506.887034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.887034][ T254] netdev_get_by_index+0x5e/0x80 [ 1506.887034][ T254] fib6_nh_init+0x3d8/0x1580 [ 1506.887034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1506.887034][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1506.887034][ T254] ipv6_add_addr+0x411/0x2000 [ 1506.887034][ T254] inet6_addr_add+0x30e/0xa40 [ 1506.887034][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1506.887034][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1506.887034][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.887034][ T254] netlink_unicast+0x449/0x710 [ 1506.887034][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.887034][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.887034][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.887034][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.887034][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.887034][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1506.887034][ T254] [ 1506.889322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.889322][ T254] netdev_get_by_index+0x5e/0x80 [ 1506.889322][ T254] fib6_nh_init+0x3d8/0x1580 [ 1506.889322][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1506.889322][ T254] ip6_route_add+0x1c/0x140 [ 1506.889322][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1506.889322][ T254] addrconf_add_dev+0xe2/0x170 [ 1506.889322][ T254] inet6_addr_add+0x12f/0xa40 [ 1506.889322][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1506.889322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1506.889322][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.889322][ T254] netlink_unicast+0x449/0x710 [ 1506.889322][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.889322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.889322][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.889322][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.889322][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.889322][ T254] [ 1506.891558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.891558][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1506.891558][ T254] ipv6_find_idev+0x102/0x170 [ 1506.891558][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1506.891558][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1506.891558][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.891558][ T254] netlink_unicast+0x449/0x710 [ 1506.891558][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.891558][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.891558][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.891558][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.891558][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.891558][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1506.891558][ T254] [ 1506.893305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1506.893305][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1506.893305][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1506.893305][ T254] ipv6_find_idev+0x102/0x170 [ 1506.893305][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1506.893305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1506.893305][ T254] netlink_rcv_skb+0x130/0x360 [ 1506.893305][ T254] netlink_unicast+0x449/0x710 [ 1506.893305][ T254] netlink_sendmsg+0x723/0xbe0 [ 1506.893305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1506.893305][ T254] ___sys_sendmsg+0xee/0x170 [ 1506.893305][ T254] __sys_sendmsg+0xcd/0x170 [ 1506.893305][ T254] do_syscall_64+0xc6/0x1e0 [ 1506.893305][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1506.893305][ T254] [ 1516.951849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1516.952401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.952401][ T254] dst_init+0x84/0x4a0 [ 1516.952401][ T254] dst_alloc+0x97/0x150 [ 1516.952401][ T254] ip6_dst_alloc+0x23/0x90 [ 1516.952401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1516.952401][ T254] ip6_pol_route+0x56f/0x840 [ 1516.952401][ T254] fib6_rule_lookup+0x334/0x630 [ 1516.952401][ T254] ip6_route_output_flags+0x259/0x480 [ 1516.952401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1516.952401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1516.952401][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.952401][ T254] netlink_unicast+0x449/0x710 [ 1516.952401][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.952401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.952401][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.952401][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.952401][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.952401][ T254] [ 1516.954612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.954612][ T254] netdev_get_by_index+0x5e/0x80 [ 1516.954612][ T254] fib6_nh_init+0x3d8/0x1580 [ 1516.954612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1516.954612][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1516.954612][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1516.954612][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1516.954612][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1516.954612][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1516.954612][ T254] addrconf_dad_begin+0x310/0x670 [ 1516.954612][ T254] addrconf_dad_work+0x10b/0xab0 [ 1516.954612][ T254] process_one_work+0x84d/0x18a0 [ 1516.954612][ T254] worker_thread+0x587/0xd30 [ 1516.954612][ T254] kthread+0x28a/0x350 [ 1516.954612][ T254] ret_from_fork+0x31/0x70 [ 1516.954612][ T254] ret_from_fork_asm+0x1a/0x30 [ 1516.954612][ T254] [ 1516.956761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.956761][ T254] netdev_get_by_index+0x5e/0x80 [ 1516.956761][ T254] fib6_nh_init+0x3d8/0x1580 [ 1516.956761][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1516.956761][ T254] ip6_route_add+0x1c/0x140 [ 1516.956761][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1516.956761][ T254] inet6_addr_add+0x4f8/0xa40 [ 1516.956761][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1516.956761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1516.956761][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.956761][ T254] netlink_unicast+0x449/0x710 [ 1516.956761][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.956761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.956761][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.956761][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.956761][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.956761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1516.956761][ T254] [ 1516.959017][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.959017][ T254] netdev_get_by_index+0x5e/0x80 [ 1516.959017][ T254] fib6_nh_init+0x3d8/0x1580 [ 1516.959017][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1516.959017][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1516.959017][ T254] ipv6_add_addr+0x411/0x2000 [ 1516.959017][ T254] inet6_addr_add+0x30e/0xa40 [ 1516.959017][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1516.959017][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1516.959017][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.959017][ T254] netlink_unicast+0x449/0x710 [ 1516.959017][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.959017][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.959017][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.959017][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.959017][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.959017][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1516.959017][ T254] [ 1516.961358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.961358][ T254] netdev_get_by_index+0x5e/0x80 [ 1516.961358][ T254] fib6_nh_init+0x3d8/0x1580 [ 1516.961358][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1516.961358][ T254] ip6_route_add+0x1c/0x140 [ 1516.961358][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1516.961358][ T254] addrconf_add_dev+0xe2/0x170 [ 1516.961358][ T254] inet6_addr_add+0x12f/0xa40 [ 1516.961358][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1516.961358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1516.961358][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.961358][ T254] netlink_unicast+0x449/0x710 [ 1516.961358][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.961358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.961358][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.961358][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.961358][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.961358][ T254] [ 1516.963559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.963559][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1516.963559][ T254] ipv6_find_idev+0x102/0x170 [ 1516.963559][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1516.963559][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1516.963559][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.963559][ T254] netlink_unicast+0x449/0x710 [ 1516.963559][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.963559][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.963559][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.963559][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.963559][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.963559][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1516.963559][ T254] [ 1516.965287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1516.965287][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1516.965287][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1516.965287][ T254] ipv6_find_idev+0x102/0x170 [ 1516.965287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1516.965287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1516.965287][ T254] netlink_rcv_skb+0x130/0x360 [ 1516.965287][ T254] netlink_unicast+0x449/0x710 [ 1516.965287][ T254] netlink_sendmsg+0x723/0xbe0 [ 1516.965287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1516.965287][ T254] ___sys_sendmsg+0xee/0x170 [ 1516.965287][ T254] __sys_sendmsg+0xcd/0x170 [ 1516.965287][ T254] do_syscall_64+0xc6/0x1e0 [ 1516.965287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1516.965287][ T254] [ 1527.215848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1527.216386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.216386][ T254] dst_init+0x84/0x4a0 [ 1527.216386][ T254] dst_alloc+0x97/0x150 [ 1527.216386][ T254] ip6_dst_alloc+0x23/0x90 [ 1527.216386][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1527.216386][ T254] ip6_pol_route+0x56f/0x840 [ 1527.216386][ T254] fib6_rule_lookup+0x334/0x630 [ 1527.216386][ T254] ip6_route_output_flags+0x259/0x480 [ 1527.216386][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1527.216386][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1527.216386][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.216386][ T254] netlink_unicast+0x449/0x710 [ 1527.216386][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.216386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.216386][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.216386][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.216386][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.216386][ T254] [ 1527.218603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.218603][ T254] netdev_get_by_index+0x5e/0x80 [ 1527.218603][ T254] fib6_nh_init+0x3d8/0x1580 [ 1527.218603][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1527.218603][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1527.218603][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1527.218603][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1527.218603][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1527.218603][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1527.218603][ T254] addrconf_dad_begin+0x310/0x670 [ 1527.218603][ T254] addrconf_dad_work+0x10b/0xab0 [ 1527.218603][ T254] process_one_work+0x84d/0x18a0 [ 1527.218603][ T254] worker_thread+0x587/0xd30 [ 1527.218603][ T254] kthread+0x28a/0x350 [ 1527.218603][ T254] ret_from_fork+0x31/0x70 [ 1527.218603][ T254] ret_from_fork_asm+0x1a/0x30 [ 1527.218603][ T254] [ 1527.220793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.220793][ T254] netdev_get_by_index+0x5e/0x80 [ 1527.220793][ T254] fib6_nh_init+0x3d8/0x1580 [ 1527.220793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1527.220793][ T254] ip6_route_add+0x1c/0x140 [ 1527.220793][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1527.220793][ T254] inet6_addr_add+0x4f8/0xa40 [ 1527.220793][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.220793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.220793][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.220793][ T254] netlink_unicast+0x449/0x710 [ 1527.220793][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.220793][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.220793][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.220793][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.220793][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.220793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.220793][ T254] [ 1527.223036][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.223036][ T254] netdev_get_by_index+0x5e/0x80 [ 1527.223036][ T254] fib6_nh_init+0x3d8/0x1580 [ 1527.223036][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1527.223036][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1527.223036][ T254] ipv6_add_addr+0x411/0x2000 [ 1527.223036][ T254] inet6_addr_add+0x30e/0xa40 [ 1527.223036][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.223036][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.223036][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.223036][ T254] netlink_unicast+0x449/0x710 [ 1527.223036][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.223036][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.223036][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.223036][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.223036][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.223036][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.223036][ T254] [ 1527.225276][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.225276][ T254] netdev_get_by_index+0x5e/0x80 [ 1527.225276][ T254] fib6_nh_init+0x3d8/0x1580 [ 1527.225276][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1527.225276][ T254] ip6_route_add+0x1c/0x140 [ 1527.225276][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1527.225276][ T254] addrconf_add_dev+0xe2/0x170 [ 1527.225276][ T254] inet6_addr_add+0x12f/0xa40 [ 1527.225276][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1527.225276][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.225276][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.225276][ T254] netlink_unicast+0x449/0x710 [ 1527.225276][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.225276][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.225276][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.225276][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.225276][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.225276][ T254] [ 1527.227485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.227485][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1527.227485][ T254] ipv6_find_idev+0x102/0x170 [ 1527.227485][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1527.227485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.227485][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.227485][ T254] netlink_unicast+0x449/0x710 [ 1527.227485][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.227485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.227485][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.227485][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.227485][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.227485][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.227485][ T254] [ 1527.229205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1527.229205][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1527.229205][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1527.229205][ T254] ipv6_find_idev+0x102/0x170 [ 1527.229205][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1527.229205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1527.229205][ T254] netlink_rcv_skb+0x130/0x360 [ 1527.229205][ T254] netlink_unicast+0x449/0x710 [ 1527.229205][ T254] netlink_sendmsg+0x723/0xbe0 [ 1527.229205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1527.229205][ T254] ___sys_sendmsg+0xee/0x170 [ 1527.229205][ T254] __sys_sendmsg+0xcd/0x170 [ 1527.229205][ T254] do_syscall_64+0xc6/0x1e0 [ 1527.229205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1527.229205][ T254] [ 1537.479841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1537.480375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.480375][ T254] dst_init+0x84/0x4a0 [ 1537.480375][ T254] dst_alloc+0x97/0x150 [ 1537.480375][ T254] ip6_dst_alloc+0x23/0x90 [ 1537.480375][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1537.480375][ T254] ip6_pol_route+0x56f/0x840 [ 1537.480375][ T254] fib6_rule_lookup+0x334/0x630 [ 1537.480375][ T254] ip6_route_output_flags+0x259/0x480 [ 1537.480375][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1537.480375][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1537.480375][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.480375][ T254] netlink_unicast+0x449/0x710 [ 1537.480375][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.480375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.480375][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.480375][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.480375][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.480375][ T254] [ 1537.482598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.482598][ T254] netdev_get_by_index+0x5e/0x80 [ 1537.482598][ T254] fib6_nh_init+0x3d8/0x1580 [ 1537.482598][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1537.482598][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1537.482598][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1537.482598][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1537.482598][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1537.482598][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1537.482598][ T254] addrconf_dad_begin+0x310/0x670 [ 1537.482598][ T254] addrconf_dad_work+0x10b/0xab0 [ 1537.482598][ T254] process_one_work+0x84d/0x18a0 [ 1537.482598][ T254] worker_thread+0x587/0xd30 [ 1537.482598][ T254] kthread+0x28a/0x350 [ 1537.482598][ T254] ret_from_fork+0x31/0x70 [ 1537.482598][ T254] ret_from_fork_asm+0x1a/0x30 [ 1537.482598][ T254] [ 1537.484739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.484739][ T254] netdev_get_by_index+0x5e/0x80 [ 1537.484739][ T254] fib6_nh_init+0x3d8/0x1580 [ 1537.484739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1537.484739][ T254] ip6_route_add+0x1c/0x140 [ 1537.484739][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1537.484739][ T254] inet6_addr_add+0x4f8/0xa40 [ 1537.484739][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1537.484739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1537.484739][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.484739][ T254] netlink_unicast+0x449/0x710 [ 1537.484739][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.484739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.484739][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.484739][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.484739][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.484739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1537.484739][ T254] [ 1537.486981][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.486981][ T254] netdev_get_by_index+0x5e/0x80 [ 1537.486981][ T254] fib6_nh_init+0x3d8/0x1580 [ 1537.486981][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1537.486981][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1537.486981][ T254] ipv6_add_addr+0x411/0x2000 [ 1537.486981][ T254] inet6_addr_add+0x30e/0xa40 [ 1537.486981][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1537.486981][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1537.486981][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.486981][ T254] netlink_unicast+0x449/0x710 [ 1537.486981][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.486981][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.486981][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.486981][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.486981][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.486981][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1537.486981][ T254] [ 1537.489231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.489231][ T254] netdev_get_by_index+0x5e/0x80 [ 1537.489231][ T254] fib6_nh_init+0x3d8/0x1580 [ 1537.489231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1537.489231][ T254] ip6_route_add+0x1c/0x140 [ 1537.489231][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1537.489231][ T254] addrconf_add_dev+0xe2/0x170 [ 1537.489231][ T254] inet6_addr_add+0x12f/0xa40 [ 1537.489231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1537.489231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1537.489231][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.489231][ T254] netlink_unicast+0x449/0x710 [ 1537.489231][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.489231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.489231][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.489231][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.489231][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.489231][ T254] [ 1537.491439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.491439][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1537.491439][ T254] ipv6_find_idev+0x102/0x170 [ 1537.491439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1537.491439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1537.491439][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.491439][ T254] netlink_unicast+0x449/0x710 [ 1537.491439][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.491439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.491439][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.491439][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.491439][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.491439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1537.491439][ T254] [ 1537.493179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1537.493179][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1537.493179][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1537.493179][ T254] ipv6_find_idev+0x102/0x170 [ 1537.493179][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1537.493179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1537.493179][ T254] netlink_rcv_skb+0x130/0x360 [ 1537.493179][ T254] netlink_unicast+0x449/0x710 [ 1537.493179][ T254] netlink_sendmsg+0x723/0xbe0 [ 1537.493179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1537.493179][ T254] ___sys_sendmsg+0xee/0x170 [ 1537.493179][ T254] __sys_sendmsg+0xcd/0x170 [ 1537.493179][ T254] do_syscall_64+0xc6/0x1e0 [ 1537.493179][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1537.493179][ T254] [ 1547.743847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1547.744394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.744394][ T254] dst_init+0x84/0x4a0 [ 1547.744394][ T254] dst_alloc+0x97/0x150 [ 1547.744394][ T254] ip6_dst_alloc+0x23/0x90 [ 1547.744394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1547.744394][ T254] ip6_pol_route+0x56f/0x840 [ 1547.744394][ T254] fib6_rule_lookup+0x334/0x630 [ 1547.744394][ T254] ip6_route_output_flags+0x259/0x480 [ 1547.744394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1547.744394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1547.744394][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.744394][ T254] netlink_unicast+0x449/0x710 [ 1547.744394][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.744394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.744394][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.744394][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.744394][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.744394][ T254] [ 1547.746626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.746626][ T254] netdev_get_by_index+0x5e/0x80 [ 1547.746626][ T254] fib6_nh_init+0x3d8/0x1580 [ 1547.746626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1547.746626][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1547.746626][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1547.746626][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1547.746626][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1547.746626][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1547.746626][ T254] addrconf_dad_begin+0x310/0x670 [ 1547.746626][ T254] addrconf_dad_work+0x10b/0xab0 [ 1547.746626][ T254] process_one_work+0x84d/0x18a0 [ 1547.746626][ T254] worker_thread+0x587/0xd30 [ 1547.746626][ T254] kthread+0x28a/0x350 [ 1547.746626][ T254] ret_from_fork+0x31/0x70 [ 1547.746626][ T254] ret_from_fork_asm+0x1a/0x30 [ 1547.746626][ T254] [ 1547.748815][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.748815][ T254] netdev_get_by_index+0x5e/0x80 [ 1547.748815][ T254] fib6_nh_init+0x3d8/0x1580 [ 1547.748815][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1547.748815][ T254] ip6_route_add+0x1c/0x140 [ 1547.748815][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1547.748815][ T254] inet6_addr_add+0x4f8/0xa40 [ 1547.748815][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1547.748815][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1547.748815][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.748815][ T254] netlink_unicast+0x449/0x710 [ 1547.748815][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.748815][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.748815][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.748815][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.748815][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.748815][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1547.748815][ T254] [ 1547.751091][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.751091][ T254] netdev_get_by_index+0x5e/0x80 [ 1547.751091][ T254] fib6_nh_init+0x3d8/0x1580 [ 1547.751091][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1547.751091][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1547.751091][ T254] ipv6_add_addr+0x411/0x2000 [ 1547.751091][ T254] inet6_addr_add+0x30e/0xa40 [ 1547.751091][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1547.751091][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1547.751091][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.751091][ T254] netlink_unicast+0x449/0x710 [ 1547.751091][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.751091][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.751091][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.751091][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.751091][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.751091][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1547.751091][ T254] [ 1547.753372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.753372][ T254] netdev_get_by_index+0x5e/0x80 [ 1547.753372][ T254] fib6_nh_init+0x3d8/0x1580 [ 1547.753372][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1547.753372][ T254] ip6_route_add+0x1c/0x140 [ 1547.753372][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1547.753372][ T254] addrconf_add_dev+0xe2/0x170 [ 1547.753372][ T254] inet6_addr_add+0x12f/0xa40 [ 1547.753372][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1547.753372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1547.753372][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.753372][ T254] netlink_unicast+0x449/0x710 [ 1547.753372][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.753372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.753372][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.753372][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.753372][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.753372][ T254] [ 1547.755591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.755591][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1547.755591][ T254] ipv6_find_idev+0x102/0x170 [ 1547.755591][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1547.755591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1547.755591][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.755591][ T254] netlink_unicast+0x449/0x710 [ 1547.755591][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.755591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.755591][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.755591][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.755591][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.755591][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1547.755591][ T254] [ 1547.757331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1547.757331][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1547.757331][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1547.757331][ T254] ipv6_find_idev+0x102/0x170 [ 1547.757331][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1547.757331][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1547.757331][ T254] netlink_rcv_skb+0x130/0x360 [ 1547.757331][ T254] netlink_unicast+0x449/0x710 [ 1547.757331][ T254] netlink_sendmsg+0x723/0xbe0 [ 1547.757331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1547.757331][ T254] ___sys_sendmsg+0xee/0x170 [ 1547.757331][ T254] __sys_sendmsg+0xcd/0x170 [ 1547.757331][ T254] do_syscall_64+0xc6/0x1e0 [ 1547.757331][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1547.757331][ T254] [ 1558.007877][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1558.008347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.008347][ T254] dst_init+0x84/0x4a0 [ 1558.008347][ T254] dst_alloc+0x97/0x150 [ 1558.008347][ T254] ip6_dst_alloc+0x23/0x90 [ 1558.008347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1558.008347][ T254] ip6_pol_route+0x56f/0x840 [ 1558.008347][ T254] fib6_rule_lookup+0x334/0x630 [ 1558.008347][ T254] ip6_route_output_flags+0x259/0x480 [ 1558.008347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1558.008347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1558.008347][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.008347][ T254] netlink_unicast+0x449/0x710 [ 1558.008347][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.008347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.008347][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.008347][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.008347][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.008347][ T254] [ 1558.010568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.010568][ T254] netdev_get_by_index+0x5e/0x80 [ 1558.010568][ T254] fib6_nh_init+0x3d8/0x1580 [ 1558.010568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1558.010568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1558.010568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1558.010568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1558.010568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1558.010568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1558.010568][ T254] addrconf_dad_begin+0x310/0x670 [ 1558.010568][ T254] addrconf_dad_work+0x10b/0xab0 [ 1558.010568][ T254] process_one_work+0x84d/0x18a0 [ 1558.010568][ T254] worker_thread+0x587/0xd30 [ 1558.010568][ T254] kthread+0x28a/0x350 [ 1558.010568][ T254] ret_from_fork+0x31/0x70 [ 1558.010568][ T254] ret_from_fork_asm+0x1a/0x30 [ 1558.010568][ T254] [ 1558.012713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.012713][ T254] netdev_get_by_index+0x5e/0x80 [ 1558.012713][ T254] fib6_nh_init+0x3d8/0x1580 [ 1558.012713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1558.012713][ T254] ip6_route_add+0x1c/0x140 [ 1558.012713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1558.012713][ T254] inet6_addr_add+0x4f8/0xa40 [ 1558.012713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.012713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.012713][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.012713][ T254] netlink_unicast+0x449/0x710 [ 1558.012713][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.012713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.012713][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.012713][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.012713][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.012713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.012713][ T254] [ 1558.014957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.014957][ T254] netdev_get_by_index+0x5e/0x80 [ 1558.014957][ T254] fib6_nh_init+0x3d8/0x1580 [ 1558.014957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1558.014957][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1558.014957][ T254] ipv6_add_addr+0x411/0x2000 [ 1558.014957][ T254] inet6_addr_add+0x30e/0xa40 [ 1558.014957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.014957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.014957][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.014957][ T254] netlink_unicast+0x449/0x710 [ 1558.014957][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.014957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.014957][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.014957][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.014957][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.014957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.014957][ T254] [ 1558.017197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.017197][ T254] netdev_get_by_index+0x5e/0x80 [ 1558.017197][ T254] fib6_nh_init+0x3d8/0x1580 [ 1558.017197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1558.017197][ T254] ip6_route_add+0x1c/0x140 [ 1558.017197][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1558.017197][ T254] addrconf_add_dev+0xe2/0x170 [ 1558.017197][ T254] inet6_addr_add+0x12f/0xa40 [ 1558.017197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1558.017197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.017197][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.017197][ T254] netlink_unicast+0x449/0x710 [ 1558.017197][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.017197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.017197][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.017197][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.017197][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.017197][ T254] [ 1558.019405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.019405][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1558.019405][ T254] ipv6_find_idev+0x102/0x170 [ 1558.019405][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1558.019405][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.019405][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.019405][ T254] netlink_unicast+0x449/0x710 [ 1558.019405][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.019405][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.019405][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.019405][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.019405][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.019405][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.019405][ T254] [ 1558.021135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1558.021135][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1558.021135][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1558.021135][ T254] ipv6_find_idev+0x102/0x170 [ 1558.021135][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1558.021135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1558.021135][ T254] netlink_rcv_skb+0x130/0x360 [ 1558.021135][ T254] netlink_unicast+0x449/0x710 [ 1558.021135][ T254] netlink_sendmsg+0x723/0xbe0 [ 1558.021135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1558.021135][ T254] ___sys_sendmsg+0xee/0x170 [ 1558.021135][ T254] __sys_sendmsg+0xcd/0x170 [ 1558.021135][ T254] do_syscall_64+0xc6/0x1e0 [ 1558.021135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1558.021135][ T254] [ 1568.271870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1568.272395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.272395][ T254] dst_init+0x84/0x4a0 [ 1568.272395][ T254] dst_alloc+0x97/0x150 [ 1568.272395][ T254] ip6_dst_alloc+0x23/0x90 [ 1568.272395][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1568.272395][ T254] ip6_pol_route+0x56f/0x840 [ 1568.272395][ T254] fib6_rule_lookup+0x334/0x630 [ 1568.272395][ T254] ip6_route_output_flags+0x259/0x480 [ 1568.272395][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1568.272395][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1568.272395][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.272395][ T254] netlink_unicast+0x449/0x710 [ 1568.272395][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.272395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.272395][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.272395][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.272395][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.272395][ T254] [ 1568.274624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.274624][ T254] netdev_get_by_index+0x5e/0x80 [ 1568.274624][ T254] fib6_nh_init+0x3d8/0x1580 [ 1568.274624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1568.274624][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1568.274624][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1568.274624][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1568.274624][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1568.274624][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1568.274624][ T254] addrconf_dad_begin+0x310/0x670 [ 1568.274624][ T254] addrconf_dad_work+0x10b/0xab0 [ 1568.274624][ T254] process_one_work+0x84d/0x18a0 [ 1568.274624][ T254] worker_thread+0x587/0xd30 [ 1568.274624][ T254] kthread+0x28a/0x350 [ 1568.274624][ T254] ret_from_fork+0x31/0x70 [ 1568.274624][ T254] ret_from_fork_asm+0x1a/0x30 [ 1568.274624][ T254] [ 1568.276779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.276779][ T254] netdev_get_by_index+0x5e/0x80 [ 1568.276779][ T254] fib6_nh_init+0x3d8/0x1580 [ 1568.276779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1568.276779][ T254] ip6_route_add+0x1c/0x140 [ 1568.276779][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1568.276779][ T254] inet6_addr_add+0x4f8/0xa40 [ 1568.276779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.276779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.276779][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.276779][ T254] netlink_unicast+0x449/0x710 [ 1568.276779][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.276779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.276779][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.276779][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.276779][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.276779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.276779][ T254] [ 1568.279041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.279041][ T254] netdev_get_by_index+0x5e/0x80 [ 1568.279041][ T254] fib6_nh_init+0x3d8/0x1580 [ 1568.279041][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1568.279041][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1568.279041][ T254] ipv6_add_addr+0x411/0x2000 [ 1568.279041][ T254] inet6_addr_add+0x30e/0xa40 [ 1568.279041][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.279041][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.279041][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.279041][ T254] netlink_unicast+0x449/0x710 [ 1568.279041][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.279041][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.279041][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.279041][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.279041][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.279041][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.279041][ T254] [ 1568.281329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.281329][ T254] netdev_get_by_index+0x5e/0x80 [ 1568.281329][ T254] fib6_nh_init+0x3d8/0x1580 [ 1568.281329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1568.281329][ T254] ip6_route_add+0x1c/0x140 [ 1568.281329][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1568.281329][ T254] addrconf_add_dev+0xe2/0x170 [ 1568.281329][ T254] inet6_addr_add+0x12f/0xa40 [ 1568.281329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1568.281329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.281329][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.281329][ T254] netlink_unicast+0x449/0x710 [ 1568.281329][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.281329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.281329][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.281329][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.281329][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.281329][ T254] [ 1568.283559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.283559][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1568.283559][ T254] ipv6_find_idev+0x102/0x170 [ 1568.283559][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1568.283559][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.283559][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.283559][ T254] netlink_unicast+0x449/0x710 [ 1568.283559][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.283559][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.283559][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.283559][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.283559][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.283559][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.283559][ T254] [ 1568.285290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1568.285290][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1568.285290][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1568.285290][ T254] ipv6_find_idev+0x102/0x170 [ 1568.285290][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1568.285290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1568.285290][ T254] netlink_rcv_skb+0x130/0x360 [ 1568.285290][ T254] netlink_unicast+0x449/0x710 [ 1568.285290][ T254] netlink_sendmsg+0x723/0xbe0 [ 1568.285290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1568.285290][ T254] ___sys_sendmsg+0xee/0x170 [ 1568.285290][ T254] __sys_sendmsg+0xcd/0x170 [ 1568.285290][ T254] do_syscall_64+0xc6/0x1e0 [ 1568.285290][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1568.285290][ T254] [ 1578.303860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1578.304398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.304398][ T254] dst_init+0x84/0x4a0 [ 1578.304398][ T254] dst_alloc+0x97/0x150 [ 1578.304398][ T254] ip6_dst_alloc+0x23/0x90 [ 1578.304398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1578.304398][ T254] ip6_pol_route+0x56f/0x840 [ 1578.304398][ T254] fib6_rule_lookup+0x334/0x630 [ 1578.304398][ T254] ip6_route_output_flags+0x259/0x480 [ 1578.304398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1578.304398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1578.304398][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.304398][ T254] netlink_unicast+0x449/0x710 [ 1578.304398][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.304398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.304398][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.304398][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.304398][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.304398][ T254] [ 1578.306627][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.306627][ T254] netdev_get_by_index+0x5e/0x80 [ 1578.306627][ T254] fib6_nh_init+0x3d8/0x1580 [ 1578.306627][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1578.306627][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1578.306627][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1578.306627][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1578.306627][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1578.306627][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1578.306627][ T254] addrconf_dad_begin+0x310/0x670 [ 1578.306627][ T254] addrconf_dad_work+0x10b/0xab0 [ 1578.306627][ T254] process_one_work+0x84d/0x18a0 [ 1578.306627][ T254] worker_thread+0x587/0xd30 [ 1578.306627][ T254] kthread+0x28a/0x350 [ 1578.306627][ T254] ret_from_fork+0x31/0x70 [ 1578.306627][ T254] ret_from_fork_asm+0x1a/0x30 [ 1578.306627][ T254] [ 1578.308779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.308779][ T254] netdev_get_by_index+0x5e/0x80 [ 1578.308779][ T254] fib6_nh_init+0x3d8/0x1580 [ 1578.308779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1578.308779][ T254] ip6_route_add+0x1c/0x140 [ 1578.308779][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1578.308779][ T254] inet6_addr_add+0x4f8/0xa40 [ 1578.308779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.308779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.308779][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.308779][ T254] netlink_unicast+0x449/0x710 [ 1578.308779][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.308779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.308779][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.308779][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.308779][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.308779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.308779][ T254] [ 1578.311026][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.311026][ T254] netdev_get_by_index+0x5e/0x80 [ 1578.311026][ T254] fib6_nh_init+0x3d8/0x1580 [ 1578.311026][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1578.311026][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1578.311026][ T254] ipv6_add_addr+0x411/0x2000 [ 1578.311026][ T254] inet6_addr_add+0x30e/0xa40 [ 1578.311026][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.311026][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.311026][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.311026][ T254] netlink_unicast+0x449/0x710 [ 1578.311026][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.311026][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.311026][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.311026][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.311026][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.311026][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.311026][ T254] [ 1578.313274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.313274][ T254] netdev_get_by_index+0x5e/0x80 [ 1578.313274][ T254] fib6_nh_init+0x3d8/0x1580 [ 1578.313274][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1578.313274][ T254] ip6_route_add+0x1c/0x140 [ 1578.313274][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1578.313274][ T254] addrconf_add_dev+0xe2/0x170 [ 1578.313274][ T254] inet6_addr_add+0x12f/0xa40 [ 1578.313274][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1578.313274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.313274][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.313274][ T254] netlink_unicast+0x449/0x710 [ 1578.313274][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.313274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.313274][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.313274][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.313274][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.313274][ T254] [ 1578.315473][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.315473][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1578.315473][ T254] ipv6_find_idev+0x102/0x170 [ 1578.315473][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1578.315473][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.315473][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.315473][ T254] netlink_unicast+0x449/0x710 [ 1578.315473][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.315473][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.315473][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.315473][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.315473][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.315473][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.315473][ T254] [ 1578.317302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1578.317302][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1578.317302][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1578.317302][ T254] ipv6_find_idev+0x102/0x170 [ 1578.317302][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1578.317302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1578.317302][ T254] netlink_rcv_skb+0x130/0x360 [ 1578.317302][ T254] netlink_unicast+0x449/0x710 [ 1578.317302][ T254] netlink_sendmsg+0x723/0xbe0 [ 1578.317302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1578.317302][ T254] ___sys_sendmsg+0xee/0x170 [ 1578.317302][ T254] __sys_sendmsg+0xcd/0x170 [ 1578.317302][ T254] do_syscall_64+0xc6/0x1e0 [ 1578.317302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1578.317302][ T254] [ 1588.423848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1588.424329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.424329][ T254] dst_init+0x84/0x4a0 [ 1588.424329][ T254] dst_alloc+0x97/0x150 [ 1588.424329][ T254] ip6_dst_alloc+0x23/0x90 [ 1588.424329][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1588.424329][ T254] ip6_pol_route+0x56f/0x840 [ 1588.424329][ T254] fib6_rule_lookup+0x334/0x630 [ 1588.424329][ T254] ip6_route_output_flags+0x259/0x480 [ 1588.424329][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1588.424329][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1588.424329][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.424329][ T254] netlink_unicast+0x449/0x710 [ 1588.424329][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.424329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.424329][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.424329][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.424329][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.424329][ T254] [ 1588.426541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.426541][ T254] netdev_get_by_index+0x5e/0x80 [ 1588.426541][ T254] fib6_nh_init+0x3d8/0x1580 [ 1588.426541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1588.426541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1588.426541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1588.426541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1588.426541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1588.426541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1588.426541][ T254] addrconf_dad_begin+0x310/0x670 [ 1588.426541][ T254] addrconf_dad_work+0x10b/0xab0 [ 1588.426541][ T254] process_one_work+0x84d/0x18a0 [ 1588.426541][ T254] worker_thread+0x587/0xd30 [ 1588.426541][ T254] kthread+0x28a/0x350 [ 1588.426541][ T254] ret_from_fork+0x31/0x70 [ 1588.426541][ T254] ret_from_fork_asm+0x1a/0x30 [ 1588.426541][ T254] [ 1588.428689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.428689][ T254] netdev_get_by_index+0x5e/0x80 [ 1588.428689][ T254] fib6_nh_init+0x3d8/0x1580 [ 1588.428689][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1588.428689][ T254] ip6_route_add+0x1c/0x140 [ 1588.428689][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1588.428689][ T254] inet6_addr_add+0x4f8/0xa40 [ 1588.428689][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.428689][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.428689][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.428689][ T254] netlink_unicast+0x449/0x710 [ 1588.428689][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.428689][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.428689][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.428689][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.428689][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.428689][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.428689][ T254] [ 1588.430954][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.430954][ T254] netdev_get_by_index+0x5e/0x80 [ 1588.430954][ T254] fib6_nh_init+0x3d8/0x1580 [ 1588.430954][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1588.430954][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1588.430954][ T254] ipv6_add_addr+0x411/0x2000 [ 1588.430954][ T254] inet6_addr_add+0x30e/0xa40 [ 1588.430954][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.430954][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.430954][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.430954][ T254] netlink_unicast+0x449/0x710 [ 1588.430954][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.430954][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.430954][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.430954][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.430954][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.430954][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.430954][ T254] [ 1588.433189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.433189][ T254] netdev_get_by_index+0x5e/0x80 [ 1588.433189][ T254] fib6_nh_init+0x3d8/0x1580 [ 1588.433189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1588.433189][ T254] ip6_route_add+0x1c/0x140 [ 1588.433189][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1588.433189][ T254] addrconf_add_dev+0xe2/0x170 [ 1588.433189][ T254] inet6_addr_add+0x12f/0xa40 [ 1588.433189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1588.433189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.433189][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.433189][ T254] netlink_unicast+0x449/0x710 [ 1588.433189][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.433189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.433189][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.433189][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.433189][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.433189][ T254] [ 1588.435395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.435395][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1588.435395][ T254] ipv6_find_idev+0x102/0x170 [ 1588.435395][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1588.435395][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.435395][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.435395][ T254] netlink_unicast+0x449/0x710 [ 1588.435395][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.435395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.435395][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.435395][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.435395][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.435395][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.435395][ T254] [ 1588.437121][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1588.437121][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1588.437121][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1588.437121][ T254] ipv6_find_idev+0x102/0x170 [ 1588.437121][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1588.437121][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1588.437121][ T254] netlink_rcv_skb+0x130/0x360 [ 1588.437121][ T254] netlink_unicast+0x449/0x710 [ 1588.437121][ T254] netlink_sendmsg+0x723/0xbe0 [ 1588.437121][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1588.437121][ T254] ___sys_sendmsg+0xee/0x170 [ 1588.437121][ T254] __sys_sendmsg+0xcd/0x170 [ 1588.437121][ T254] do_syscall_64+0xc6/0x1e0 [ 1588.437121][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1588.437121][ T254] [ 1598.687844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1598.688395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.688395][ T254] dst_init+0x84/0x4a0 [ 1598.688395][ T254] dst_alloc+0x97/0x150 [ 1598.688395][ T254] ip6_dst_alloc+0x23/0x90 [ 1598.688395][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1598.688395][ T254] ip6_pol_route+0x56f/0x840 [ 1598.688395][ T254] fib6_rule_lookup+0x334/0x630 [ 1598.688395][ T254] ip6_route_output_flags+0x259/0x480 [ 1598.688395][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1598.688395][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1598.688395][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.688395][ T254] netlink_unicast+0x449/0x710 [ 1598.688395][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.688395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.688395][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.688395][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.688395][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.688395][ T254] [ 1598.690657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.690657][ T254] netdev_get_by_index+0x5e/0x80 [ 1598.690657][ T254] fib6_nh_init+0x3d8/0x1580 [ 1598.690657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1598.690657][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1598.690657][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1598.690657][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1598.690657][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1598.690657][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1598.690657][ T254] addrconf_dad_begin+0x310/0x670 [ 1598.690657][ T254] addrconf_dad_work+0x10b/0xab0 [ 1598.690657][ T254] process_one_work+0x84d/0x18a0 [ 1598.690657][ T254] worker_thread+0x587/0xd30 [ 1598.690657][ T254] kthread+0x28a/0x350 [ 1598.690657][ T254] ret_from_fork+0x31/0x70 [ 1598.690657][ T254] ret_from_fork_asm+0x1a/0x30 [ 1598.690657][ T254] [ 1598.692840][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.692840][ T254] netdev_get_by_index+0x5e/0x80 [ 1598.692840][ T254] fib6_nh_init+0x3d8/0x1580 [ 1598.692840][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1598.692840][ T254] ip6_route_add+0x1c/0x140 [ 1598.692840][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1598.692840][ T254] inet6_addr_add+0x4f8/0xa40 [ 1598.692840][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1598.692840][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1598.692840][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.692840][ T254] netlink_unicast+0x449/0x710 [ 1598.692840][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.692840][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.692840][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.692840][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.692840][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.692840][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1598.692840][ T254] [ 1598.695111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.695111][ T254] netdev_get_by_index+0x5e/0x80 [ 1598.695111][ T254] fib6_nh_init+0x3d8/0x1580 [ 1598.695111][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1598.695111][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1598.695111][ T254] ipv6_add_addr+0x411/0x2000 [ 1598.695111][ T254] inet6_addr_add+0x30e/0xa40 [ 1598.695111][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1598.695111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1598.695111][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.695111][ T254] netlink_unicast+0x449/0x710 [ 1598.695111][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.695111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.695111][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.695111][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.695111][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.695111][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1598.695111][ T254] [ 1598.697488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.697488][ T254] netdev_get_by_index+0x5e/0x80 [ 1598.697488][ T254] fib6_nh_init+0x3d8/0x1580 [ 1598.697488][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1598.697488][ T254] ip6_route_add+0x1c/0x140 [ 1598.697488][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1598.697488][ T254] addrconf_add_dev+0xe2/0x170 [ 1598.697488][ T254] inet6_addr_add+0x12f/0xa40 [ 1598.697488][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1598.697488][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1598.697488][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.697488][ T254] netlink_unicast+0x449/0x710 [ 1598.697488][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.697488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.697488][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.697488][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.697488][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.697488][ T254] [ 1598.699733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.699733][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1598.699733][ T254] ipv6_find_idev+0x102/0x170 [ 1598.699733][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1598.699733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1598.699733][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.699733][ T254] netlink_unicast+0x449/0x710 [ 1598.699733][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.699733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.699733][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.699733][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.699733][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.699733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1598.699733][ T254] [ 1598.701493][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1598.701493][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1598.701493][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1598.701493][ T254] ipv6_find_idev+0x102/0x170 [ 1598.701493][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1598.701493][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1598.701493][ T254] netlink_rcv_skb+0x130/0x360 [ 1598.701493][ T254] netlink_unicast+0x449/0x710 [ 1598.701493][ T254] netlink_sendmsg+0x723/0xbe0 [ 1598.701493][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1598.701493][ T254] ___sys_sendmsg+0xee/0x170 [ 1598.701493][ T254] __sys_sendmsg+0xcd/0x170 [ 1598.701493][ T254] do_syscall_64+0xc6/0x1e0 [ 1598.701493][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1598.701493][ T254] [ 1608.951848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1608.952401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.952401][ T254] dst_init+0x84/0x4a0 [ 1608.952401][ T254] dst_alloc+0x97/0x150 [ 1608.952401][ T254] ip6_dst_alloc+0x23/0x90 [ 1608.952401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1608.952401][ T254] ip6_pol_route+0x56f/0x840 [ 1608.952401][ T254] fib6_rule_lookup+0x334/0x630 [ 1608.952401][ T254] ip6_route_output_flags+0x259/0x480 [ 1608.952401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1608.952401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1608.952401][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.952401][ T254] netlink_unicast+0x449/0x710 [ 1608.952401][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.952401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.952401][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.952401][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.952401][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.952401][ T254] [ 1608.954634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.954634][ T254] netdev_get_by_index+0x5e/0x80 [ 1608.954634][ T254] fib6_nh_init+0x3d8/0x1580 [ 1608.954634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1608.954634][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1608.954634][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1608.954634][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1608.954634][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1608.954634][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1608.954634][ T254] addrconf_dad_begin+0x310/0x670 [ 1608.954634][ T254] addrconf_dad_work+0x10b/0xab0 [ 1608.954634][ T254] process_one_work+0x84d/0x18a0 [ 1608.954634][ T254] worker_thread+0x587/0xd30 [ 1608.954634][ T254] kthread+0x28a/0x350 [ 1608.954634][ T254] ret_from_fork+0x31/0x70 [ 1608.954634][ T254] ret_from_fork_asm+0x1a/0x30 [ 1608.954634][ T254] [ 1608.956820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.956820][ T254] netdev_get_by_index+0x5e/0x80 [ 1608.956820][ T254] fib6_nh_init+0x3d8/0x1580 [ 1608.956820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1608.956820][ T254] ip6_route_add+0x1c/0x140 [ 1608.956820][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1608.956820][ T254] inet6_addr_add+0x4f8/0xa40 [ 1608.956820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1608.956820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1608.956820][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.956820][ T254] netlink_unicast+0x449/0x710 [ 1608.956820][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.956820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.956820][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.956820][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.956820][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.956820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1608.956820][ T254] [ 1608.959104][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.959104][ T254] netdev_get_by_index+0x5e/0x80 [ 1608.959104][ T254] fib6_nh_init+0x3d8/0x1580 [ 1608.959104][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1608.959104][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1608.959104][ T254] ipv6_add_addr+0x411/0x2000 [ 1608.959104][ T254] inet6_addr_add+0x30e/0xa40 [ 1608.959104][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1608.959104][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1608.959104][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.959104][ T254] netlink_unicast+0x449/0x710 [ 1608.959104][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.959104][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.959104][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.959104][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.959104][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.959104][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1608.959104][ T254] [ 1608.961490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.961490][ T254] netdev_get_by_index+0x5e/0x80 [ 1608.961490][ T254] fib6_nh_init+0x3d8/0x1580 [ 1608.961490][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1608.961490][ T254] ip6_route_add+0x1c/0x140 [ 1608.961490][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1608.961490][ T254] addrconf_add_dev+0xe2/0x170 [ 1608.961490][ T254] inet6_addr_add+0x12f/0xa40 [ 1608.961490][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1608.961490][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1608.961490][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.961490][ T254] netlink_unicast+0x449/0x710 [ 1608.961490][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.961490][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.961490][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.961490][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.961490][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.961490][ T254] [ 1608.963709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.963709][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1608.963709][ T254] ipv6_find_idev+0x102/0x170 [ 1608.963709][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1608.963709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1608.963709][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.963709][ T254] netlink_unicast+0x449/0x710 [ 1608.963709][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.963709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.963709][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.963709][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.963709][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.963709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1608.963709][ T254] [ 1608.965449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1608.965449][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1608.965449][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1608.965449][ T254] ipv6_find_idev+0x102/0x170 [ 1608.965449][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1608.965449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1608.965449][ T254] netlink_rcv_skb+0x130/0x360 [ 1608.965449][ T254] netlink_unicast+0x449/0x710 [ 1608.965449][ T254] netlink_sendmsg+0x723/0xbe0 [ 1608.965449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1608.965449][ T254] ___sys_sendmsg+0xee/0x170 [ 1608.965449][ T254] __sys_sendmsg+0xcd/0x170 [ 1608.965449][ T254] do_syscall_64+0xc6/0x1e0 [ 1608.965449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1608.965449][ T254] [ 1619.215872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1619.216423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.216423][ T254] dst_init+0x84/0x4a0 [ 1619.216423][ T254] dst_alloc+0x97/0x150 [ 1619.216423][ T254] ip6_dst_alloc+0x23/0x90 [ 1619.216423][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1619.216423][ T254] ip6_pol_route+0x56f/0x840 [ 1619.216423][ T254] fib6_rule_lookup+0x334/0x630 [ 1619.216423][ T254] ip6_route_output_flags+0x259/0x480 [ 1619.216423][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1619.216423][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1619.216423][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.216423][ T254] netlink_unicast+0x449/0x710 [ 1619.216423][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.216423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.216423][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.216423][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.216423][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.216423][ T254] [ 1619.218653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.218653][ T254] netdev_get_by_index+0x5e/0x80 [ 1619.218653][ T254] fib6_nh_init+0x3d8/0x1580 [ 1619.218653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1619.218653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1619.218653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1619.218653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1619.218653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1619.218653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1619.218653][ T254] addrconf_dad_begin+0x310/0x670 [ 1619.218653][ T254] addrconf_dad_work+0x10b/0xab0 [ 1619.218653][ T254] process_one_work+0x84d/0x18a0 [ 1619.218653][ T254] worker_thread+0x587/0xd30 [ 1619.218653][ T254] kthread+0x28a/0x350 [ 1619.218653][ T254] ret_from_fork+0x31/0x70 [ 1619.218653][ T254] ret_from_fork_asm+0x1a/0x30 [ 1619.218653][ T254] [ 1619.220840][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.220840][ T254] netdev_get_by_index+0x5e/0x80 [ 1619.220840][ T254] fib6_nh_init+0x3d8/0x1580 [ 1619.220840][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1619.220840][ T254] ip6_route_add+0x1c/0x140 [ 1619.220840][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1619.220840][ T254] inet6_addr_add+0x4f8/0xa40 [ 1619.220840][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.220840][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.220840][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.220840][ T254] netlink_unicast+0x449/0x710 [ 1619.220840][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.220840][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.220840][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.220840][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.220840][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.220840][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.220840][ T254] [ 1619.223102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.223102][ T254] netdev_get_by_index+0x5e/0x80 [ 1619.223102][ T254] fib6_nh_init+0x3d8/0x1580 [ 1619.223102][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1619.223102][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1619.223102][ T254] ipv6_add_addr+0x411/0x2000 [ 1619.223102][ T254] inet6_addr_add+0x30e/0xa40 [ 1619.223102][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.223102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.223102][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.223102][ T254] netlink_unicast+0x449/0x710 [ 1619.223102][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.223102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.223102][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.223102][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.223102][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.223102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.223102][ T254] [ 1619.225378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.225378][ T254] netdev_get_by_index+0x5e/0x80 [ 1619.225378][ T254] fib6_nh_init+0x3d8/0x1580 [ 1619.225378][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1619.225378][ T254] ip6_route_add+0x1c/0x140 [ 1619.225378][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1619.225378][ T254] addrconf_add_dev+0xe2/0x170 [ 1619.225378][ T254] inet6_addr_add+0x12f/0xa40 [ 1619.225378][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1619.225378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.225378][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.225378][ T254] netlink_unicast+0x449/0x710 [ 1619.225378][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.225378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.225378][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.225378][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.225378][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.225378][ T254] [ 1619.227598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.227598][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1619.227598][ T254] ipv6_find_idev+0x102/0x170 [ 1619.227598][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1619.227598][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.227598][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.227598][ T254] netlink_unicast+0x449/0x710 [ 1619.227598][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.227598][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.227598][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.227598][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.227598][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.227598][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.227598][ T254] [ 1619.229347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1619.229347][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1619.229347][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1619.229347][ T254] ipv6_find_idev+0x102/0x170 [ 1619.229347][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1619.229347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1619.229347][ T254] netlink_rcv_skb+0x130/0x360 [ 1619.229347][ T254] netlink_unicast+0x449/0x710 [ 1619.229347][ T254] netlink_sendmsg+0x723/0xbe0 [ 1619.229347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1619.229347][ T254] ___sys_sendmsg+0xee/0x170 [ 1619.229347][ T254] __sys_sendmsg+0xcd/0x170 [ 1619.229347][ T254] do_syscall_64+0xc6/0x1e0 [ 1619.229347][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1619.229347][ T254] [ 1629.335860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1629.336427][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.336427][ T254] dst_init+0x84/0x4a0 [ 1629.336427][ T254] dst_alloc+0x97/0x150 [ 1629.336427][ T254] ip6_dst_alloc+0x23/0x90 [ 1629.336427][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1629.336427][ T254] ip6_pol_route+0x56f/0x840 [ 1629.336427][ T254] fib6_rule_lookup+0x334/0x630 [ 1629.336427][ T254] ip6_route_output_flags+0x259/0x480 [ 1629.336427][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1629.336427][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1629.336427][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.336427][ T254] netlink_unicast+0x449/0x710 [ 1629.336427][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.336427][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.336427][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.336427][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.336427][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.336427][ T254] [ 1629.338663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.338663][ T254] netdev_get_by_index+0x5e/0x80 [ 1629.338663][ T254] fib6_nh_init+0x3d8/0x1580 [ 1629.338663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1629.338663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1629.338663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1629.338663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1629.338663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1629.338663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1629.338663][ T254] addrconf_dad_begin+0x310/0x670 [ 1629.338663][ T254] addrconf_dad_work+0x10b/0xab0 [ 1629.338663][ T254] process_one_work+0x84d/0x18a0 [ 1629.338663][ T254] worker_thread+0x587/0xd30 [ 1629.338663][ T254] kthread+0x28a/0x350 [ 1629.338663][ T254] ret_from_fork+0x31/0x70 [ 1629.338663][ T254] ret_from_fork_asm+0x1a/0x30 [ 1629.338663][ T254] [ 1629.340848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.340848][ T254] netdev_get_by_index+0x5e/0x80 [ 1629.340848][ T254] fib6_nh_init+0x3d8/0x1580 [ 1629.340848][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1629.340848][ T254] ip6_route_add+0x1c/0x140 [ 1629.340848][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1629.340848][ T254] inet6_addr_add+0x4f8/0xa40 [ 1629.340848][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.340848][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.340848][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.340848][ T254] netlink_unicast+0x449/0x710 [ 1629.340848][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.340848][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.340848][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.340848][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.340848][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.340848][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.340848][ T254] [ 1629.343114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.343114][ T254] netdev_get_by_index+0x5e/0x80 [ 1629.343114][ T254] fib6_nh_init+0x3d8/0x1580 [ 1629.343114][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1629.343114][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1629.343114][ T254] ipv6_add_addr+0x411/0x2000 [ 1629.343114][ T254] inet6_addr_add+0x30e/0xa40 [ 1629.343114][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.343114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.343114][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.343114][ T254] netlink_unicast+0x449/0x710 [ 1629.343114][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.343114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.343114][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.343114][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.343114][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.343114][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.343114][ T254] [ 1629.345377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.345377][ T254] netdev_get_by_index+0x5e/0x80 [ 1629.345377][ T254] fib6_nh_init+0x3d8/0x1580 [ 1629.345377][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1629.345377][ T254] ip6_route_add+0x1c/0x140 [ 1629.345377][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1629.345377][ T254] addrconf_add_dev+0xe2/0x170 [ 1629.345377][ T254] inet6_addr_add+0x12f/0xa40 [ 1629.345377][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1629.345377][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.345377][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.345377][ T254] netlink_unicast+0x449/0x710 [ 1629.345377][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.345377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.345377][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.345377][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.345377][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.345377][ T254] [ 1629.347597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.347597][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1629.347597][ T254] ipv6_find_idev+0x102/0x170 [ 1629.347597][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1629.347597][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.347597][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.347597][ T254] netlink_unicast+0x449/0x710 [ 1629.347597][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.347597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.347597][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.347597][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.347597][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.347597][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.347597][ T254] [ 1629.349395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1629.349395][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1629.349395][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1629.349395][ T254] ipv6_find_idev+0x102/0x170 [ 1629.349395][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1629.349395][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1629.349395][ T254] netlink_rcv_skb+0x130/0x360 [ 1629.349395][ T254] netlink_unicast+0x449/0x710 [ 1629.349395][ T254] netlink_sendmsg+0x723/0xbe0 [ 1629.349395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1629.349395][ T254] ___sys_sendmsg+0xee/0x170 [ 1629.349395][ T254] __sys_sendmsg+0xcd/0x170 [ 1629.349395][ T254] do_syscall_64+0xc6/0x1e0 [ 1629.349395][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1629.349395][ T254] [ 1639.591842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1639.592385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.592385][ T254] dst_init+0x84/0x4a0 [ 1639.592385][ T254] dst_alloc+0x97/0x150 [ 1639.592385][ T254] ip6_dst_alloc+0x23/0x90 [ 1639.592385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1639.592385][ T254] ip6_pol_route+0x56f/0x840 [ 1639.592385][ T254] fib6_rule_lookup+0x334/0x630 [ 1639.592385][ T254] ip6_route_output_flags+0x259/0x480 [ 1639.592385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1639.592385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1639.592385][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.592385][ T254] netlink_unicast+0x449/0x710 [ 1639.592385][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.592385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.592385][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.592385][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.592385][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.592385][ T254] [ 1639.594623][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.594623][ T254] netdev_get_by_index+0x5e/0x80 [ 1639.594623][ T254] fib6_nh_init+0x3d8/0x1580 [ 1639.594623][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1639.594623][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1639.594623][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1639.594623][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1639.594623][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1639.594623][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1639.594623][ T254] addrconf_dad_begin+0x310/0x670 [ 1639.594623][ T254] addrconf_dad_work+0x10b/0xab0 [ 1639.594623][ T254] process_one_work+0x84d/0x18a0 [ 1639.594623][ T254] worker_thread+0x587/0xd30 [ 1639.594623][ T254] kthread+0x28a/0x350 [ 1639.594623][ T254] ret_from_fork+0x31/0x70 [ 1639.594623][ T254] ret_from_fork_asm+0x1a/0x30 [ 1639.594623][ T254] [ 1639.596802][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.596802][ T254] netdev_get_by_index+0x5e/0x80 [ 1639.596802][ T254] fib6_nh_init+0x3d8/0x1580 [ 1639.596802][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1639.596802][ T254] ip6_route_add+0x1c/0x140 [ 1639.596802][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1639.596802][ T254] inet6_addr_add+0x4f8/0xa40 [ 1639.596802][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.596802][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.596802][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.596802][ T254] netlink_unicast+0x449/0x710 [ 1639.596802][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.596802][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.596802][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.596802][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.596802][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.596802][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.596802][ T254] [ 1639.599107][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.599107][ T254] netdev_get_by_index+0x5e/0x80 [ 1639.599107][ T254] fib6_nh_init+0x3d8/0x1580 [ 1639.599107][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1639.599107][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1639.599107][ T254] ipv6_add_addr+0x411/0x2000 [ 1639.599107][ T254] inet6_addr_add+0x30e/0xa40 [ 1639.599107][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.599107][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.599107][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.599107][ T254] netlink_unicast+0x449/0x710 [ 1639.599107][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.599107][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.599107][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.599107][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.599107][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.599107][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.599107][ T254] [ 1639.601375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.601375][ T254] netdev_get_by_index+0x5e/0x80 [ 1639.601375][ T254] fib6_nh_init+0x3d8/0x1580 [ 1639.601375][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1639.601375][ T254] ip6_route_add+0x1c/0x140 [ 1639.601375][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1639.601375][ T254] addrconf_add_dev+0xe2/0x170 [ 1639.601375][ T254] inet6_addr_add+0x12f/0xa40 [ 1639.601375][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1639.601375][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.601375][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.601375][ T254] netlink_unicast+0x449/0x710 [ 1639.601375][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.601375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.601375][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.601375][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.601375][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.601375][ T254] [ 1639.603596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.603596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1639.603596][ T254] ipv6_find_idev+0x102/0x170 [ 1639.603596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1639.603596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.603596][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.603596][ T254] netlink_unicast+0x449/0x710 [ 1639.603596][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.603596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.603596][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.603596][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.603596][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.603596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.603596][ T254] [ 1639.605344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1639.605344][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1639.605344][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1639.605344][ T254] ipv6_find_idev+0x102/0x170 [ 1639.605344][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1639.605344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1639.605344][ T254] netlink_rcv_skb+0x130/0x360 [ 1639.605344][ T254] netlink_unicast+0x449/0x710 [ 1639.605344][ T254] netlink_sendmsg+0x723/0xbe0 [ 1639.605344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1639.605344][ T254] ___sys_sendmsg+0xee/0x170 [ 1639.605344][ T254] __sys_sendmsg+0xcd/0x170 [ 1639.605344][ T254] do_syscall_64+0xc6/0x1e0 [ 1639.605344][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1639.605344][ T254] [ 1649.847869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1649.848411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.848411][ T254] dst_init+0x84/0x4a0 [ 1649.848411][ T254] dst_alloc+0x97/0x150 [ 1649.848411][ T254] ip6_dst_alloc+0x23/0x90 [ 1649.848411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1649.848411][ T254] ip6_pol_route+0x56f/0x840 [ 1649.848411][ T254] fib6_rule_lookup+0x334/0x630 [ 1649.848411][ T254] ip6_route_output_flags+0x259/0x480 [ 1649.848411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1649.848411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1649.848411][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.848411][ T254] netlink_unicast+0x449/0x710 [ 1649.848411][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.848411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.848411][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.848411][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.848411][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.848411][ T254] [ 1649.850636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.850636][ T254] netdev_get_by_index+0x5e/0x80 [ 1649.850636][ T254] fib6_nh_init+0x3d8/0x1580 [ 1649.850636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1649.850636][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1649.850636][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1649.850636][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1649.850636][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1649.850636][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1649.850636][ T254] addrconf_dad_begin+0x310/0x670 [ 1649.850636][ T254] addrconf_dad_work+0x10b/0xab0 [ 1649.850636][ T254] process_one_work+0x84d/0x18a0 [ 1649.850636][ T254] worker_thread+0x587/0xd30 [ 1649.850636][ T254] kthread+0x28a/0x350 [ 1649.850636][ T254] ret_from_fork+0x31/0x70 [ 1649.850636][ T254] ret_from_fork_asm+0x1a/0x30 [ 1649.850636][ T254] [ 1649.852785][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.852785][ T254] netdev_get_by_index+0x5e/0x80 [ 1649.852785][ T254] fib6_nh_init+0x3d8/0x1580 [ 1649.852785][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1649.852785][ T254] ip6_route_add+0x1c/0x140 [ 1649.852785][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1649.852785][ T254] inet6_addr_add+0x4f8/0xa40 [ 1649.852785][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1649.852785][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1649.852785][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.852785][ T254] netlink_unicast+0x449/0x710 [ 1649.852785][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.852785][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.852785][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.852785][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.852785][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.852785][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1649.852785][ T254] [ 1649.855413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.855413][ T254] netdev_get_by_index+0x5e/0x80 [ 1649.855413][ T254] fib6_nh_init+0x3d8/0x1580 [ 1649.855413][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1649.855413][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1649.855413][ T254] ipv6_add_addr+0x411/0x2000 [ 1649.855413][ T254] inet6_addr_add+0x30e/0xa40 [ 1649.855413][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1649.855413][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1649.855413][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.855413][ T254] netlink_unicast+0x449/0x710 [ 1649.855413][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.855413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.855413][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.855413][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.855413][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.855413][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1649.855413][ T254] [ 1649.857659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.857659][ T254] netdev_get_by_index+0x5e/0x80 [ 1649.857659][ T254] fib6_nh_init+0x3d8/0x1580 [ 1649.857659][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1649.857659][ T254] ip6_route_add+0x1c/0x140 [ 1649.857659][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1649.857659][ T254] addrconf_add_dev+0xe2/0x170 [ 1649.857659][ T254] inet6_addr_add+0x12f/0xa40 [ 1649.857659][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1649.857659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1649.857659][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.857659][ T254] netlink_unicast+0x449/0x710 [ 1649.857659][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.857659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.857659][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.857659][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.857659][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.857659][ T254] [ 1649.859876][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.859876][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1649.859876][ T254] ipv6_find_idev+0x102/0x170 [ 1649.859876][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1649.859876][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1649.859876][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.859876][ T254] netlink_unicast+0x449/0x710 [ 1649.859876][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.859876][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.859876][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.859876][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.859876][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.859876][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1649.859876][ T254] [ 1649.861607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1649.861607][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1649.861607][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1649.861607][ T254] ipv6_find_idev+0x102/0x170 [ 1649.861607][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1649.861607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1649.861607][ T254] netlink_rcv_skb+0x130/0x360 [ 1649.861607][ T254] netlink_unicast+0x449/0x710 [ 1649.861607][ T254] netlink_sendmsg+0x723/0xbe0 [ 1649.861607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1649.861607][ T254] ___sys_sendmsg+0xee/0x170 [ 1649.861607][ T254] __sys_sendmsg+0xcd/0x170 [ 1649.861607][ T254] do_syscall_64+0xc6/0x1e0 [ 1649.861607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1649.861607][ T254] [ 1660.103842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1660.104369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.104369][ T254] dst_init+0x84/0x4a0 [ 1660.104369][ T254] dst_alloc+0x97/0x150 [ 1660.104369][ T254] ip6_dst_alloc+0x23/0x90 [ 1660.104369][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1660.104369][ T254] ip6_pol_route+0x56f/0x840 [ 1660.104369][ T254] fib6_rule_lookup+0x334/0x630 [ 1660.104369][ T254] ip6_route_output_flags+0x259/0x480 [ 1660.104369][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1660.104369][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1660.104369][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.104369][ T254] netlink_unicast+0x449/0x710 [ 1660.104369][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.104369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.104369][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.104369][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.104369][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.104369][ T254] [ 1660.106584][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.106584][ T254] netdev_get_by_index+0x5e/0x80 [ 1660.106584][ T254] fib6_nh_init+0x3d8/0x1580 [ 1660.106584][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1660.106584][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1660.106584][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1660.106584][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1660.106584][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1660.106584][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1660.106584][ T254] addrconf_dad_begin+0x310/0x670 [ 1660.106584][ T254] addrconf_dad_work+0x10b/0xab0 [ 1660.106584][ T254] process_one_work+0x84d/0x18a0 [ 1660.106584][ T254] worker_thread+0x587/0xd30 [ 1660.106584][ T254] kthread+0x28a/0x350 [ 1660.106584][ T254] ret_from_fork+0x31/0x70 [ 1660.106584][ T254] ret_from_fork_asm+0x1a/0x30 [ 1660.106584][ T254] [ 1660.108891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.108891][ T254] netdev_get_by_index+0x5e/0x80 [ 1660.108891][ T254] fib6_nh_init+0x3d8/0x1580 [ 1660.108891][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1660.108891][ T254] ip6_route_add+0x1c/0x140 [ 1660.108891][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1660.108891][ T254] inet6_addr_add+0x4f8/0xa40 [ 1660.108891][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.108891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.108891][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.108891][ T254] netlink_unicast+0x449/0x710 [ 1660.108891][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.108891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.108891][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.108891][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.108891][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.108891][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.108891][ T254] [ 1660.111128][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.111128][ T254] netdev_get_by_index+0x5e/0x80 [ 1660.111128][ T254] fib6_nh_init+0x3d8/0x1580 [ 1660.111128][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1660.111128][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1660.111128][ T254] ipv6_add_addr+0x411/0x2000 [ 1660.111128][ T254] inet6_addr_add+0x30e/0xa40 [ 1660.111128][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.111128][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.111128][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.111128][ T254] netlink_unicast+0x449/0x710 [ 1660.111128][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.111128][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.111128][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.111128][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.111128][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.111128][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.111128][ T254] [ 1660.113366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.113366][ T254] netdev_get_by_index+0x5e/0x80 [ 1660.113366][ T254] fib6_nh_init+0x3d8/0x1580 [ 1660.113366][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1660.113366][ T254] ip6_route_add+0x1c/0x140 [ 1660.113366][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1660.113366][ T254] addrconf_add_dev+0xe2/0x170 [ 1660.113366][ T254] inet6_addr_add+0x12f/0xa40 [ 1660.113366][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1660.113366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.113366][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.113366][ T254] netlink_unicast+0x449/0x710 [ 1660.113366][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.113366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.113366][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.113366][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.113366][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.113366][ T254] [ 1660.115558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.115558][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1660.115558][ T254] ipv6_find_idev+0x102/0x170 [ 1660.115558][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1660.115558][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.115558][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.115558][ T254] netlink_unicast+0x449/0x710 [ 1660.115558][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.115558][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.115558][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.115558][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.115558][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.115558][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.115558][ T254] [ 1660.117278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1660.117278][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1660.117278][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1660.117278][ T254] ipv6_find_idev+0x102/0x170 [ 1660.117278][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1660.117278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1660.117278][ T254] netlink_rcv_skb+0x130/0x360 [ 1660.117278][ T254] netlink_unicast+0x449/0x710 [ 1660.117278][ T254] netlink_sendmsg+0x723/0xbe0 [ 1660.117278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1660.117278][ T254] ___sys_sendmsg+0xee/0x170 [ 1660.117278][ T254] __sys_sendmsg+0xcd/0x170 [ 1660.117278][ T254] do_syscall_64+0xc6/0x1e0 [ 1660.117278][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1660.117278][ T254] [ 1670.359783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1670.360316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.360316][ T254] dst_init+0x84/0x4a0 [ 1670.360316][ T254] dst_alloc+0x97/0x150 [ 1670.360316][ T254] ip6_dst_alloc+0x23/0x90 [ 1670.360316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1670.360316][ T254] ip6_pol_route+0x56f/0x840 [ 1670.360316][ T254] fib6_rule_lookup+0x334/0x630 [ 1670.360316][ T254] ip6_route_output_flags+0x259/0x480 [ 1670.360316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1670.360316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1670.360316][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.360316][ T254] netlink_unicast+0x449/0x710 [ 1670.360316][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.360316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.360316][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.360316][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.360316][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.360316][ T254] [ 1670.362532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.362532][ T254] netdev_get_by_index+0x5e/0x80 [ 1670.362532][ T254] fib6_nh_init+0x3d8/0x1580 [ 1670.362532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1670.362532][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1670.362532][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1670.362532][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1670.362532][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1670.362532][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1670.362532][ T254] addrconf_dad_begin+0x310/0x670 [ 1670.362532][ T254] addrconf_dad_work+0x10b/0xab0 [ 1670.362532][ T254] process_one_work+0x84d/0x18a0 [ 1670.362532][ T254] worker_thread+0x587/0xd30 [ 1670.362532][ T254] kthread+0x28a/0x350 [ 1670.362532][ T254] ret_from_fork+0x31/0x70 [ 1670.362532][ T254] ret_from_fork_asm+0x1a/0x30 [ 1670.362532][ T254] [ 1670.364689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.364689][ T254] netdev_get_by_index+0x5e/0x80 [ 1670.364689][ T254] fib6_nh_init+0x3d8/0x1580 [ 1670.364689][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1670.364689][ T254] ip6_route_add+0x1c/0x140 [ 1670.364689][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1670.364689][ T254] inet6_addr_add+0x4f8/0xa40 [ 1670.364689][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.364689][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.364689][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.364689][ T254] netlink_unicast+0x449/0x710 [ 1670.364689][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.364689][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.364689][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.364689][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.364689][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.364689][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.364689][ T254] [ 1670.366927][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.366927][ T254] netdev_get_by_index+0x5e/0x80 [ 1670.366927][ T254] fib6_nh_init+0x3d8/0x1580 [ 1670.366927][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1670.366927][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1670.366927][ T254] ipv6_add_addr+0x411/0x2000 [ 1670.366927][ T254] inet6_addr_add+0x30e/0xa40 [ 1670.366927][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.366927][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.366927][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.366927][ T254] netlink_unicast+0x449/0x710 [ 1670.366927][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.366927][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.366927][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.366927][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.366927][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.366927][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.366927][ T254] [ 1670.369173][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.369173][ T254] netdev_get_by_index+0x5e/0x80 [ 1670.369173][ T254] fib6_nh_init+0x3d8/0x1580 [ 1670.369173][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1670.369173][ T254] ip6_route_add+0x1c/0x140 [ 1670.369173][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1670.369173][ T254] addrconf_add_dev+0xe2/0x170 [ 1670.369173][ T254] inet6_addr_add+0x12f/0xa40 [ 1670.369173][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1670.369173][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.369173][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.369173][ T254] netlink_unicast+0x449/0x710 [ 1670.369173][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.369173][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.369173][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.369173][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.369173][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.369173][ T254] [ 1670.371362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.371362][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1670.371362][ T254] ipv6_find_idev+0x102/0x170 [ 1670.371362][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1670.371362][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.371362][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.371362][ T254] netlink_unicast+0x449/0x710 [ 1670.371362][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.371362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.371362][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.371362][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.371362][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.371362][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.371362][ T254] [ 1670.373077][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1670.373077][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1670.373077][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1670.373077][ T254] ipv6_find_idev+0x102/0x170 [ 1670.373077][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1670.373077][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1670.373077][ T254] netlink_rcv_skb+0x130/0x360 [ 1670.373077][ T254] netlink_unicast+0x449/0x710 [ 1670.373077][ T254] netlink_sendmsg+0x723/0xbe0 [ 1670.373077][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1670.373077][ T254] ___sys_sendmsg+0xee/0x170 [ 1670.373077][ T254] __sys_sendmsg+0xcd/0x170 [ 1670.373077][ T254] do_syscall_64+0xc6/0x1e0 [ 1670.373077][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1670.373077][ T254] [ 1680.615848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1680.616384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.616384][ T254] dst_init+0x84/0x4a0 [ 1680.616384][ T254] dst_alloc+0x97/0x150 [ 1680.616384][ T254] ip6_dst_alloc+0x23/0x90 [ 1680.616384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1680.616384][ T254] ip6_pol_route+0x56f/0x840 [ 1680.616384][ T254] fib6_rule_lookup+0x334/0x630 [ 1680.616384][ T254] ip6_route_output_flags+0x259/0x480 [ 1680.616384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1680.616384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1680.616384][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.616384][ T254] netlink_unicast+0x449/0x710 [ 1680.616384][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.616384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.616384][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.616384][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.616384][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.616384][ T254] [ 1680.618586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.618586][ T254] netdev_get_by_index+0x5e/0x80 [ 1680.618586][ T254] fib6_nh_init+0x3d8/0x1580 [ 1680.618586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1680.618586][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1680.618586][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1680.618586][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1680.618586][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1680.618586][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1680.618586][ T254] addrconf_dad_begin+0x310/0x670 [ 1680.618586][ T254] addrconf_dad_work+0x10b/0xab0 [ 1680.618586][ T254] process_one_work+0x84d/0x18a0 [ 1680.618586][ T254] worker_thread+0x587/0xd30 [ 1680.618586][ T254] kthread+0x28a/0x350 [ 1680.618586][ T254] ret_from_fork+0x31/0x70 [ 1680.618586][ T254] ret_from_fork_asm+0x1a/0x30 [ 1680.618586][ T254] [ 1680.620747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.620747][ T254] netdev_get_by_index+0x5e/0x80 [ 1680.620747][ T254] fib6_nh_init+0x3d8/0x1580 [ 1680.620747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1680.620747][ T254] ip6_route_add+0x1c/0x140 [ 1680.620747][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1680.620747][ T254] inet6_addr_add+0x4f8/0xa40 [ 1680.620747][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.620747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.620747][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.620747][ T254] netlink_unicast+0x449/0x710 [ 1680.620747][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.620747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.620747][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.620747][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.620747][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.620747][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.620747][ T254] [ 1680.623019][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.623019][ T254] netdev_get_by_index+0x5e/0x80 [ 1680.623019][ T254] fib6_nh_init+0x3d8/0x1580 [ 1680.623019][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1680.623019][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1680.623019][ T254] ipv6_add_addr+0x411/0x2000 [ 1680.623019][ T254] inet6_addr_add+0x30e/0xa40 [ 1680.623019][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.623019][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.623019][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.623019][ T254] netlink_unicast+0x449/0x710 [ 1680.623019][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.623019][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.623019][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.623019][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.623019][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.623019][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.623019][ T254] [ 1680.625262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.625262][ T254] netdev_get_by_index+0x5e/0x80 [ 1680.625262][ T254] fib6_nh_init+0x3d8/0x1580 [ 1680.625262][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1680.625262][ T254] ip6_route_add+0x1c/0x140 [ 1680.625262][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1680.625262][ T254] addrconf_add_dev+0xe2/0x170 [ 1680.625262][ T254] inet6_addr_add+0x12f/0xa40 [ 1680.625262][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1680.625262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.625262][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.625262][ T254] netlink_unicast+0x449/0x710 [ 1680.625262][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.625262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.625262][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.625262][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.625262][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.625262][ T254] [ 1680.627454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.627454][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1680.627454][ T254] ipv6_find_idev+0x102/0x170 [ 1680.627454][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1680.627454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.627454][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.627454][ T254] netlink_unicast+0x449/0x710 [ 1680.627454][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.627454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.627454][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.627454][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.627454][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.627454][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.627454][ T254] [ 1680.629180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1680.629180][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1680.629180][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1680.629180][ T254] ipv6_find_idev+0x102/0x170 [ 1680.629180][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1680.629180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1680.629180][ T254] netlink_rcv_skb+0x130/0x360 [ 1680.629180][ T254] netlink_unicast+0x449/0x710 [ 1680.629180][ T254] netlink_sendmsg+0x723/0xbe0 [ 1680.629180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1680.629180][ T254] ___sys_sendmsg+0xee/0x170 [ 1680.629180][ T254] __sys_sendmsg+0xcd/0x170 [ 1680.629180][ T254] do_syscall_64+0xc6/0x1e0 [ 1680.629180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1680.629180][ T254] [ 1690.791843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1690.792374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.792374][ T254] dst_init+0x84/0x4a0 [ 1690.792374][ T254] dst_alloc+0x97/0x150 [ 1690.792374][ T254] ip6_dst_alloc+0x23/0x90 [ 1690.792374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1690.792374][ T254] ip6_pol_route+0x56f/0x840 [ 1690.792374][ T254] fib6_rule_lookup+0x334/0x630 [ 1690.792374][ T254] ip6_route_output_flags+0x259/0x480 [ 1690.792374][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1690.792374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1690.792374][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.792374][ T254] netlink_unicast+0x449/0x710 [ 1690.792374][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.792374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.792374][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.792374][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.792374][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.792374][ T254] [ 1690.794585][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.794585][ T254] netdev_get_by_index+0x5e/0x80 [ 1690.794585][ T254] fib6_nh_init+0x3d8/0x1580 [ 1690.794585][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1690.794585][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1690.794585][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1690.794585][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1690.794585][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1690.794585][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1690.794585][ T254] addrconf_dad_begin+0x310/0x670 [ 1690.794585][ T254] addrconf_dad_work+0x10b/0xab0 [ 1690.794585][ T254] process_one_work+0x84d/0x18a0 [ 1690.794585][ T254] worker_thread+0x587/0xd30 [ 1690.794585][ T254] kthread+0x28a/0x350 [ 1690.794585][ T254] ret_from_fork+0x31/0x70 [ 1690.794585][ T254] ret_from_fork_asm+0x1a/0x30 [ 1690.794585][ T254] [ 1690.796736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.796736][ T254] netdev_get_by_index+0x5e/0x80 [ 1690.796736][ T254] fib6_nh_init+0x3d8/0x1580 [ 1690.796736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1690.796736][ T254] ip6_route_add+0x1c/0x140 [ 1690.796736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1690.796736][ T254] inet6_addr_add+0x4f8/0xa40 [ 1690.796736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.796736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.796736][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.796736][ T254] netlink_unicast+0x449/0x710 [ 1690.796736][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.796736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.796736][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.796736][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.796736][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.796736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.796736][ T254] [ 1690.799000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.799000][ T254] netdev_get_by_index+0x5e/0x80 [ 1690.799000][ T254] fib6_nh_init+0x3d8/0x1580 [ 1690.799000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1690.799000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1690.799000][ T254] ipv6_add_addr+0x411/0x2000 [ 1690.799000][ T254] inet6_addr_add+0x30e/0xa40 [ 1690.799000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.799000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.799000][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.799000][ T254] netlink_unicast+0x449/0x710 [ 1690.799000][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.799000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.799000][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.799000][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.799000][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.799000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.799000][ T254] [ 1690.801241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.801241][ T254] netdev_get_by_index+0x5e/0x80 [ 1690.801241][ T254] fib6_nh_init+0x3d8/0x1580 [ 1690.801241][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1690.801241][ T254] ip6_route_add+0x1c/0x140 [ 1690.801241][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1690.801241][ T254] addrconf_add_dev+0xe2/0x170 [ 1690.801241][ T254] inet6_addr_add+0x12f/0xa40 [ 1690.801241][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1690.801241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.801241][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.801241][ T254] netlink_unicast+0x449/0x710 [ 1690.801241][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.801241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.801241][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.801241][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.801241][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.801241][ T254] [ 1690.803444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.803444][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1690.803444][ T254] ipv6_find_idev+0x102/0x170 [ 1690.803444][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1690.803444][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.803444][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.803444][ T254] netlink_unicast+0x449/0x710 [ 1690.803444][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.803444][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.803444][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.803444][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.803444][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.803444][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.803444][ T254] [ 1690.805176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1690.805176][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1690.805176][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1690.805176][ T254] ipv6_find_idev+0x102/0x170 [ 1690.805176][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1690.805176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1690.805176][ T254] netlink_rcv_skb+0x130/0x360 [ 1690.805176][ T254] netlink_unicast+0x449/0x710 [ 1690.805176][ T254] netlink_sendmsg+0x723/0xbe0 [ 1690.805176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1690.805176][ T254] ___sys_sendmsg+0xee/0x170 [ 1690.805176][ T254] __sys_sendmsg+0xcd/0x170 [ 1690.805176][ T254] do_syscall_64+0xc6/0x1e0 [ 1690.805176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1690.805176][ T254] [ 1701.047842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1701.048315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.048315][ T254] dst_init+0x84/0x4a0 [ 1701.048315][ T254] dst_alloc+0x97/0x150 [ 1701.048315][ T254] ip6_dst_alloc+0x23/0x90 [ 1701.048315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1701.048315][ T254] ip6_pol_route+0x56f/0x840 [ 1701.048315][ T254] fib6_rule_lookup+0x334/0x630 [ 1701.048315][ T254] ip6_route_output_flags+0x259/0x480 [ 1701.048315][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1701.048315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1701.048315][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.048315][ T254] netlink_unicast+0x449/0x710 [ 1701.048315][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.048315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.048315][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.048315][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.048315][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.048315][ T254] [ 1701.050541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.050541][ T254] netdev_get_by_index+0x5e/0x80 [ 1701.050541][ T254] fib6_nh_init+0x3d8/0x1580 [ 1701.050541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1701.050541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1701.050541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1701.050541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1701.050541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1701.050541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1701.050541][ T254] addrconf_dad_begin+0x310/0x670 [ 1701.050541][ T254] addrconf_dad_work+0x10b/0xab0 [ 1701.050541][ T254] process_one_work+0x84d/0x18a0 [ 1701.050541][ T254] worker_thread+0x587/0xd30 [ 1701.050541][ T254] kthread+0x28a/0x350 [ 1701.050541][ T254] ret_from_fork+0x31/0x70 [ 1701.050541][ T254] ret_from_fork_asm+0x1a/0x30 [ 1701.050541][ T254] [ 1701.052695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.052695][ T254] netdev_get_by_index+0x5e/0x80 [ 1701.052695][ T254] fib6_nh_init+0x3d8/0x1580 [ 1701.052695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1701.052695][ T254] ip6_route_add+0x1c/0x140 [ 1701.052695][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1701.052695][ T254] inet6_addr_add+0x4f8/0xa40 [ 1701.052695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.052695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.052695][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.052695][ T254] netlink_unicast+0x449/0x710 [ 1701.052695][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.052695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.052695][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.052695][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.052695][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.052695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.052695][ T254] [ 1701.054940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.054940][ T254] netdev_get_by_index+0x5e/0x80 [ 1701.054940][ T254] fib6_nh_init+0x3d8/0x1580 [ 1701.054940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1701.054940][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1701.054940][ T254] ipv6_add_addr+0x411/0x2000 [ 1701.054940][ T254] inet6_addr_add+0x30e/0xa40 [ 1701.054940][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.054940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.054940][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.054940][ T254] netlink_unicast+0x449/0x710 [ 1701.054940][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.054940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.054940][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.054940][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.054940][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.054940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.054940][ T254] [ 1701.057188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.057188][ T254] netdev_get_by_index+0x5e/0x80 [ 1701.057188][ T254] fib6_nh_init+0x3d8/0x1580 [ 1701.057188][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1701.057188][ T254] ip6_route_add+0x1c/0x140 [ 1701.057188][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1701.057188][ T254] addrconf_add_dev+0xe2/0x170 [ 1701.057188][ T254] inet6_addr_add+0x12f/0xa40 [ 1701.057188][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1701.057188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.057188][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.057188][ T254] netlink_unicast+0x449/0x710 [ 1701.057188][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.057188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.057188][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.057188][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.057188][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.057188][ T254] [ 1701.059428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.059428][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1701.059428][ T254] ipv6_find_idev+0x102/0x170 [ 1701.059428][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1701.059428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.059428][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.059428][ T254] netlink_unicast+0x449/0x710 [ 1701.059428][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.059428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.059428][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.059428][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.059428][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.059428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.059428][ T254] [ 1701.061169][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1701.061169][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1701.061169][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1701.061169][ T254] ipv6_find_idev+0x102/0x170 [ 1701.061169][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1701.061169][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1701.061169][ T254] netlink_rcv_skb+0x130/0x360 [ 1701.061169][ T254] netlink_unicast+0x449/0x710 [ 1701.061169][ T254] netlink_sendmsg+0x723/0xbe0 [ 1701.061169][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1701.061169][ T254] ___sys_sendmsg+0xee/0x170 [ 1701.061169][ T254] __sys_sendmsg+0xcd/0x170 [ 1701.061169][ T254] do_syscall_64+0xc6/0x1e0 [ 1701.061169][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1701.061169][ T254] [ 1711.303851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1711.304373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.304373][ T254] dst_init+0x84/0x4a0 [ 1711.304373][ T254] dst_alloc+0x97/0x150 [ 1711.304373][ T254] ip6_dst_alloc+0x23/0x90 [ 1711.304373][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1711.304373][ T254] ip6_pol_route+0x56f/0x840 [ 1711.304373][ T254] fib6_rule_lookup+0x334/0x630 [ 1711.304373][ T254] ip6_route_output_flags+0x259/0x480 [ 1711.304373][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1711.304373][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1711.304373][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.304373][ T254] netlink_unicast+0x449/0x710 [ 1711.304373][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.304373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.304373][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.304373][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.304373][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.304373][ T254] [ 1711.306583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.306583][ T254] netdev_get_by_index+0x5e/0x80 [ 1711.306583][ T254] fib6_nh_init+0x3d8/0x1580 [ 1711.306583][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1711.306583][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1711.306583][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1711.306583][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1711.306583][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1711.306583][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1711.306583][ T254] addrconf_dad_begin+0x310/0x670 [ 1711.306583][ T254] addrconf_dad_work+0x10b/0xab0 [ 1711.306583][ T254] process_one_work+0x84d/0x18a0 [ 1711.306583][ T254] worker_thread+0x587/0xd30 [ 1711.306583][ T254] kthread+0x28a/0x350 [ 1711.306583][ T254] ret_from_fork+0x31/0x70 [ 1711.306583][ T254] ret_from_fork_asm+0x1a/0x30 [ 1711.306583][ T254] [ 1711.308739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.308739][ T254] netdev_get_by_index+0x5e/0x80 [ 1711.308739][ T254] fib6_nh_init+0x3d8/0x1580 [ 1711.308739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1711.308739][ T254] ip6_route_add+0x1c/0x140 [ 1711.308739][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1711.308739][ T254] inet6_addr_add+0x4f8/0xa40 [ 1711.308739][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.308739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.308739][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.308739][ T254] netlink_unicast+0x449/0x710 [ 1711.308739][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.308739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.308739][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.308739][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.308739][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.308739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.308739][ T254] [ 1711.310976][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.310976][ T254] netdev_get_by_index+0x5e/0x80 [ 1711.310976][ T254] fib6_nh_init+0x3d8/0x1580 [ 1711.310976][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1711.310976][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1711.310976][ T254] ipv6_add_addr+0x411/0x2000 [ 1711.310976][ T254] inet6_addr_add+0x30e/0xa40 [ 1711.310976][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.310976][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.310976][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.310976][ T254] netlink_unicast+0x449/0x710 [ 1711.310976][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.310976][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.310976][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.310976][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.310976][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.310976][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.310976][ T254] [ 1711.313217][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.313217][ T254] netdev_get_by_index+0x5e/0x80 [ 1711.313217][ T254] fib6_nh_init+0x3d8/0x1580 [ 1711.313217][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1711.313217][ T254] ip6_route_add+0x1c/0x140 [ 1711.313217][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1711.313217][ T254] addrconf_add_dev+0xe2/0x170 [ 1711.313217][ T254] inet6_addr_add+0x12f/0xa40 [ 1711.313217][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1711.313217][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.313217][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.313217][ T254] netlink_unicast+0x449/0x710 [ 1711.313217][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.313217][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.313217][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.313217][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.313217][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.313217][ T254] [ 1711.315412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.315412][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1711.315412][ T254] ipv6_find_idev+0x102/0x170 [ 1711.315412][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1711.315412][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.315412][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.315412][ T254] netlink_unicast+0x449/0x710 [ 1711.315412][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.315412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.315412][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.315412][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.315412][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.315412][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.315412][ T254] [ 1711.317130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1711.317130][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1711.317130][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1711.317130][ T254] ipv6_find_idev+0x102/0x170 [ 1711.317130][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1711.317130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1711.317130][ T254] netlink_rcv_skb+0x130/0x360 [ 1711.317130][ T254] netlink_unicast+0x449/0x710 [ 1711.317130][ T254] netlink_sendmsg+0x723/0xbe0 [ 1711.317130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1711.317130][ T254] ___sys_sendmsg+0xee/0x170 [ 1711.317130][ T254] __sys_sendmsg+0xcd/0x170 [ 1711.317130][ T254] do_syscall_64+0xc6/0x1e0 [ 1711.317130][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1711.317130][ T254] [ 1721.559839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1721.560368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.560368][ T254] dst_init+0x84/0x4a0 [ 1721.560368][ T254] dst_alloc+0x97/0x150 [ 1721.560368][ T254] ip6_dst_alloc+0x23/0x90 [ 1721.560368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1721.560368][ T254] ip6_pol_route+0x56f/0x840 [ 1721.560368][ T254] fib6_rule_lookup+0x334/0x630 [ 1721.560368][ T254] ip6_route_output_flags+0x259/0x480 [ 1721.560368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1721.560368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1721.560368][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.560368][ T254] netlink_unicast+0x449/0x710 [ 1721.560368][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.560368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.560368][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.560368][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.560368][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.560368][ T254] [ 1721.562578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.562578][ T254] netdev_get_by_index+0x5e/0x80 [ 1721.562578][ T254] fib6_nh_init+0x3d8/0x1580 [ 1721.562578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1721.562578][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1721.562578][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1721.562578][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1721.562578][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1721.562578][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1721.562578][ T254] addrconf_dad_begin+0x310/0x670 [ 1721.562578][ T254] addrconf_dad_work+0x10b/0xab0 [ 1721.562578][ T254] process_one_work+0x84d/0x18a0 [ 1721.562578][ T254] worker_thread+0x587/0xd30 [ 1721.562578][ T254] kthread+0x28a/0x350 [ 1721.562578][ T254] ret_from_fork+0x31/0x70 [ 1721.562578][ T254] ret_from_fork_asm+0x1a/0x30 [ 1721.562578][ T254] [ 1721.564730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.564730][ T254] netdev_get_by_index+0x5e/0x80 [ 1721.564730][ T254] fib6_nh_init+0x3d8/0x1580 [ 1721.564730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1721.564730][ T254] ip6_route_add+0x1c/0x140 [ 1721.564730][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1721.564730][ T254] inet6_addr_add+0x4f8/0xa40 [ 1721.564730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.564730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.564730][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.564730][ T254] netlink_unicast+0x449/0x710 [ 1721.564730][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.564730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.564730][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.564730][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.564730][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.564730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.564730][ T254] [ 1721.566977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.566977][ T254] netdev_get_by_index+0x5e/0x80 [ 1721.566977][ T254] fib6_nh_init+0x3d8/0x1580 [ 1721.566977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1721.566977][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1721.566977][ T254] ipv6_add_addr+0x411/0x2000 [ 1721.566977][ T254] inet6_addr_add+0x30e/0xa40 [ 1721.566977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.566977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.566977][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.566977][ T254] netlink_unicast+0x449/0x710 [ 1721.566977][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.566977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.566977][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.566977][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.566977][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.566977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.566977][ T254] [ 1721.569235][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.569235][ T254] netdev_get_by_index+0x5e/0x80 [ 1721.569235][ T254] fib6_nh_init+0x3d8/0x1580 [ 1721.569235][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1721.569235][ T254] ip6_route_add+0x1c/0x140 [ 1721.569235][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1721.569235][ T254] addrconf_add_dev+0xe2/0x170 [ 1721.569235][ T254] inet6_addr_add+0x12f/0xa40 [ 1721.569235][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1721.569235][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.569235][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.569235][ T254] netlink_unicast+0x449/0x710 [ 1721.569235][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.569235][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.569235][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.569235][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.569235][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.569235][ T254] [ 1721.571556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.571556][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1721.571556][ T254] ipv6_find_idev+0x102/0x170 [ 1721.571556][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1721.571556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.571556][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.571556][ T254] netlink_unicast+0x449/0x710 [ 1721.571556][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.571556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.571556][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.571556][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.571556][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.571556][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.571556][ T254] [ 1721.573281][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1721.573281][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1721.573281][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1721.573281][ T254] ipv6_find_idev+0x102/0x170 [ 1721.573281][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1721.573281][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1721.573281][ T254] netlink_rcv_skb+0x130/0x360 [ 1721.573281][ T254] netlink_unicast+0x449/0x710 [ 1721.573281][ T254] netlink_sendmsg+0x723/0xbe0 [ 1721.573281][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1721.573281][ T254] ___sys_sendmsg+0xee/0x170 [ 1721.573281][ T254] __sys_sendmsg+0xcd/0x170 [ 1721.573281][ T254] do_syscall_64+0xc6/0x1e0 [ 1721.573281][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1721.573281][ T254] [ 1731.815838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1731.816398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.816398][ T254] dst_init+0x84/0x4a0 [ 1731.816398][ T254] dst_alloc+0x97/0x150 [ 1731.816398][ T254] ip6_dst_alloc+0x23/0x90 [ 1731.816398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1731.816398][ T254] ip6_pol_route+0x56f/0x840 [ 1731.816398][ T254] fib6_rule_lookup+0x334/0x630 [ 1731.816398][ T254] ip6_route_output_flags+0x259/0x480 [ 1731.816398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1731.816398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1731.816398][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.816398][ T254] netlink_unicast+0x449/0x710 [ 1731.816398][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.816398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.816398][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.816398][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.816398][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.816398][ T254] [ 1731.818613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.818613][ T254] netdev_get_by_index+0x5e/0x80 [ 1731.818613][ T254] fib6_nh_init+0x3d8/0x1580 [ 1731.818613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1731.818613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1731.818613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1731.818613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1731.818613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1731.818613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1731.818613][ T254] addrconf_dad_begin+0x310/0x670 [ 1731.818613][ T254] addrconf_dad_work+0x10b/0xab0 [ 1731.818613][ T254] process_one_work+0x84d/0x18a0 [ 1731.818613][ T254] worker_thread+0x587/0xd30 [ 1731.818613][ T254] kthread+0x28a/0x350 [ 1731.818613][ T254] ret_from_fork+0x31/0x70 [ 1731.818613][ T254] ret_from_fork_asm+0x1a/0x30 [ 1731.818613][ T254] [ 1731.820773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.820773][ T254] netdev_get_by_index+0x5e/0x80 [ 1731.820773][ T254] fib6_nh_init+0x3d8/0x1580 [ 1731.820773][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1731.820773][ T254] ip6_route_add+0x1c/0x140 [ 1731.820773][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1731.820773][ T254] inet6_addr_add+0x4f8/0xa40 [ 1731.820773][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.820773][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.820773][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.820773][ T254] netlink_unicast+0x449/0x710 [ 1731.820773][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.820773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.820773][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.820773][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.820773][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.820773][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.820773][ T254] [ 1731.823013][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.823013][ T254] netdev_get_by_index+0x5e/0x80 [ 1731.823013][ T254] fib6_nh_init+0x3d8/0x1580 [ 1731.823013][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1731.823013][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1731.823013][ T254] ipv6_add_addr+0x411/0x2000 [ 1731.823013][ T254] inet6_addr_add+0x30e/0xa40 [ 1731.823013][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.823013][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.823013][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.823013][ T254] netlink_unicast+0x449/0x710 [ 1731.823013][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.823013][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.823013][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.823013][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.823013][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.823013][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.823013][ T254] [ 1731.825254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.825254][ T254] netdev_get_by_index+0x5e/0x80 [ 1731.825254][ T254] fib6_nh_init+0x3d8/0x1580 [ 1731.825254][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1731.825254][ T254] ip6_route_add+0x1c/0x140 [ 1731.825254][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1731.825254][ T254] addrconf_add_dev+0xe2/0x170 [ 1731.825254][ T254] inet6_addr_add+0x12f/0xa40 [ 1731.825254][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1731.825254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.825254][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.825254][ T254] netlink_unicast+0x449/0x710 [ 1731.825254][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.825254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.825254][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.825254][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.825254][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.825254][ T254] [ 1731.827453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.827453][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1731.827453][ T254] ipv6_find_idev+0x102/0x170 [ 1731.827453][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1731.827453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.827453][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.827453][ T254] netlink_unicast+0x449/0x710 [ 1731.827453][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.827453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.827453][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.827453][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.827453][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.827453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.827453][ T254] [ 1731.829182][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1731.829182][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1731.829182][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1731.829182][ T254] ipv6_find_idev+0x102/0x170 [ 1731.829182][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1731.829182][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1731.829182][ T254] netlink_rcv_skb+0x130/0x360 [ 1731.829182][ T254] netlink_unicast+0x449/0x710 [ 1731.829182][ T254] netlink_sendmsg+0x723/0xbe0 [ 1731.829182][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1731.829182][ T254] ___sys_sendmsg+0xee/0x170 [ 1731.829182][ T254] __sys_sendmsg+0xcd/0x170 [ 1731.829182][ T254] do_syscall_64+0xc6/0x1e0 [ 1731.829182][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1731.829182][ T254] [ 1742.071860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1742.072413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.072413][ T254] dst_init+0x84/0x4a0 [ 1742.072413][ T254] dst_alloc+0x97/0x150 [ 1742.072413][ T254] ip6_dst_alloc+0x23/0x90 [ 1742.072413][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1742.072413][ T254] ip6_pol_route+0x56f/0x840 [ 1742.072413][ T254] fib6_rule_lookup+0x334/0x630 [ 1742.072413][ T254] ip6_route_output_flags+0x259/0x480 [ 1742.072413][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1742.072413][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1742.072413][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.072413][ T254] netlink_unicast+0x449/0x710 [ 1742.072413][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.072413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.072413][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.072413][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.072413][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.072413][ T254] [ 1742.074648][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.074648][ T254] netdev_get_by_index+0x5e/0x80 [ 1742.074648][ T254] fib6_nh_init+0x3d8/0x1580 [ 1742.074648][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1742.074648][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1742.074648][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1742.074648][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1742.074648][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1742.074648][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1742.074648][ T254] addrconf_dad_begin+0x310/0x670 [ 1742.074648][ T254] addrconf_dad_work+0x10b/0xab0 [ 1742.074648][ T254] process_one_work+0x84d/0x18a0 [ 1742.074648][ T254] worker_thread+0x587/0xd30 [ 1742.074648][ T254] kthread+0x28a/0x350 [ 1742.074648][ T254] ret_from_fork+0x31/0x70 [ 1742.074648][ T254] ret_from_fork_asm+0x1a/0x30 [ 1742.074648][ T254] [ 1742.076827][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.076827][ T254] netdev_get_by_index+0x5e/0x80 [ 1742.076827][ T254] fib6_nh_init+0x3d8/0x1580 [ 1742.076827][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1742.076827][ T254] ip6_route_add+0x1c/0x140 [ 1742.076827][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1742.076827][ T254] inet6_addr_add+0x4f8/0xa40 [ 1742.076827][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.076827][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.076827][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.076827][ T254] netlink_unicast+0x449/0x710 [ 1742.076827][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.076827][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.076827][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.076827][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.076827][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.076827][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.076827][ T254] [ 1742.080025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.080025][ T254] netdev_get_by_index+0x5e/0x80 [ 1742.080025][ T254] fib6_nh_init+0x3d8/0x1580 [ 1742.080025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1742.080025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1742.080025][ T254] ipv6_add_addr+0x411/0x2000 [ 1742.080025][ T254] inet6_addr_add+0x30e/0xa40 [ 1742.080025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.080025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.080025][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.080025][ T254] netlink_unicast+0x449/0x710 [ 1742.080025][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.080025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.080025][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.080025][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.080025][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.080025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.080025][ T254] [ 1742.082290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.082290][ T254] netdev_get_by_index+0x5e/0x80 [ 1742.082290][ T254] fib6_nh_init+0x3d8/0x1580 [ 1742.082290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1742.082290][ T254] ip6_route_add+0x1c/0x140 [ 1742.082290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1742.082290][ T254] addrconf_add_dev+0xe2/0x170 [ 1742.082290][ T254] inet6_addr_add+0x12f/0xa40 [ 1742.082290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1742.082290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.082290][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.082290][ T254] netlink_unicast+0x449/0x710 [ 1742.082290][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.082290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.082290][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.082290][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.082290][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.082290][ T254] [ 1742.084513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.084513][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1742.084513][ T254] ipv6_find_idev+0x102/0x170 [ 1742.084513][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.084513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.084513][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.084513][ T254] netlink_unicast+0x449/0x710 [ 1742.084513][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.084513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.084513][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.084513][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.084513][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.084513][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.084513][ T254] [ 1742.086265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1742.086265][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1742.086265][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1742.086265][ T254] ipv6_find_idev+0x102/0x170 [ 1742.086265][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1742.086265][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1742.086265][ T254] netlink_rcv_skb+0x130/0x360 [ 1742.086265][ T254] netlink_unicast+0x449/0x710 [ 1742.086265][ T254] netlink_sendmsg+0x723/0xbe0 [ 1742.086265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1742.086265][ T254] ___sys_sendmsg+0xee/0x170 [ 1742.086265][ T254] __sys_sendmsg+0xcd/0x170 [ 1742.086265][ T254] do_syscall_64+0xc6/0x1e0 [ 1742.086265][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1742.086265][ T254] [ 1752.119803][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1752.120363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.120363][ T254] dst_init+0x84/0x4a0 [ 1752.120363][ T254] dst_alloc+0x97/0x150 [ 1752.120363][ T254] ip6_dst_alloc+0x23/0x90 [ 1752.120363][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1752.120363][ T254] ip6_pol_route+0x56f/0x840 [ 1752.120363][ T254] fib6_rule_lookup+0x334/0x630 [ 1752.120363][ T254] ip6_route_output_flags+0x259/0x480 [ 1752.120363][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1752.120363][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1752.120363][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.120363][ T254] netlink_unicast+0x449/0x710 [ 1752.120363][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.120363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.120363][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.120363][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.120363][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.120363][ T254] [ 1752.123006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.123006][ T254] netdev_get_by_index+0x5e/0x80 [ 1752.123006][ T254] fib6_nh_init+0x3d8/0x1580 [ 1752.123006][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1752.123006][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1752.123006][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1752.123006][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1752.123006][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1752.123006][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1752.123006][ T254] addrconf_dad_begin+0x310/0x670 [ 1752.123006][ T254] addrconf_dad_work+0x10b/0xab0 [ 1752.123006][ T254] process_one_work+0x84d/0x18a0 [ 1752.123006][ T254] worker_thread+0x587/0xd30 [ 1752.123006][ T254] kthread+0x28a/0x350 [ 1752.123006][ T254] ret_from_fork+0x31/0x70 [ 1752.123006][ T254] ret_from_fork_asm+0x1a/0x30 [ 1752.123006][ T254] [ 1752.125187][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.125187][ T254] netdev_get_by_index+0x5e/0x80 [ 1752.125187][ T254] fib6_nh_init+0x3d8/0x1580 [ 1752.125187][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1752.125187][ T254] ip6_route_add+0x1c/0x140 [ 1752.125187][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1752.125187][ T254] inet6_addr_add+0x4f8/0xa40 [ 1752.125187][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.125187][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.125187][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.125187][ T254] netlink_unicast+0x449/0x710 [ 1752.125187][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.125187][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.125187][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.125187][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.125187][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.125187][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.125187][ T254] [ 1752.127453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.127453][ T254] netdev_get_by_index+0x5e/0x80 [ 1752.127453][ T254] fib6_nh_init+0x3d8/0x1580 [ 1752.127453][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1752.127453][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1752.127453][ T254] ipv6_add_addr+0x411/0x2000 [ 1752.127453][ T254] inet6_addr_add+0x30e/0xa40 [ 1752.127453][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.127453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.127453][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.127453][ T254] netlink_unicast+0x449/0x710 [ 1752.127453][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.127453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.127453][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.127453][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.127453][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.127453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.127453][ T254] [ 1752.129725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.129725][ T254] netdev_get_by_index+0x5e/0x80 [ 1752.129725][ T254] fib6_nh_init+0x3d8/0x1580 [ 1752.129725][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1752.129725][ T254] ip6_route_add+0x1c/0x140 [ 1752.129725][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1752.129725][ T254] addrconf_add_dev+0xe2/0x170 [ 1752.129725][ T254] inet6_addr_add+0x12f/0xa40 [ 1752.129725][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1752.129725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.129725][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.129725][ T254] netlink_unicast+0x449/0x710 [ 1752.129725][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.129725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.129725][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.129725][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.129725][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.129725][ T254] [ 1752.131949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.131949][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1752.131949][ T254] ipv6_find_idev+0x102/0x170 [ 1752.131949][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.131949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.131949][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.131949][ T254] netlink_unicast+0x449/0x710 [ 1752.131949][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.131949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.131949][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.131949][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.131949][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.131949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.131949][ T254] [ 1752.133694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1752.133694][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1752.133694][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1752.133694][ T254] ipv6_find_idev+0x102/0x170 [ 1752.133694][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1752.133694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1752.133694][ T254] netlink_rcv_skb+0x130/0x360 [ 1752.133694][ T254] netlink_unicast+0x449/0x710 [ 1752.133694][ T254] netlink_sendmsg+0x723/0xbe0 [ 1752.133694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1752.133694][ T254] ___sys_sendmsg+0xee/0x170 [ 1752.133694][ T254] __sys_sendmsg+0xcd/0x170 [ 1752.133694][ T254] do_syscall_64+0xc6/0x1e0 [ 1752.133694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1752.133694][ T254] [ 1762.375852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1762.376408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.376408][ T254] dst_init+0x84/0x4a0 [ 1762.376408][ T254] dst_alloc+0x97/0x150 [ 1762.376408][ T254] ip6_dst_alloc+0x23/0x90 [ 1762.376408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1762.376408][ T254] ip6_pol_route+0x56f/0x840 [ 1762.376408][ T254] fib6_rule_lookup+0x334/0x630 [ 1762.376408][ T254] ip6_route_output_flags+0x259/0x480 [ 1762.376408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1762.376408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1762.376408][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.376408][ T254] netlink_unicast+0x449/0x710 [ 1762.376408][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.376408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.376408][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.376408][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.376408][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.376408][ T254] [ 1762.378655][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.378655][ T254] netdev_get_by_index+0x5e/0x80 [ 1762.378655][ T254] fib6_nh_init+0x3d8/0x1580 [ 1762.378655][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1762.378655][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1762.378655][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1762.378655][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1762.378655][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1762.378655][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1762.378655][ T254] addrconf_dad_begin+0x310/0x670 [ 1762.378655][ T254] addrconf_dad_work+0x10b/0xab0 [ 1762.378655][ T254] process_one_work+0x84d/0x18a0 [ 1762.378655][ T254] worker_thread+0x587/0xd30 [ 1762.378655][ T254] kthread+0x28a/0x350 [ 1762.378655][ T254] ret_from_fork+0x31/0x70 [ 1762.378655][ T254] ret_from_fork_asm+0x1a/0x30 [ 1762.378655][ T254] [ 1762.380834][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.380834][ T254] netdev_get_by_index+0x5e/0x80 [ 1762.380834][ T254] fib6_nh_init+0x3d8/0x1580 [ 1762.380834][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1762.380834][ T254] ip6_route_add+0x1c/0x140 [ 1762.380834][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1762.380834][ T254] inet6_addr_add+0x4f8/0xa40 [ 1762.380834][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.380834][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.380834][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.380834][ T254] netlink_unicast+0x449/0x710 [ 1762.380834][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.380834][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.380834][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.380834][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.380834][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.380834][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.380834][ T254] [ 1762.383101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.383101][ T254] netdev_get_by_index+0x5e/0x80 [ 1762.383101][ T254] fib6_nh_init+0x3d8/0x1580 [ 1762.383101][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1762.383101][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1762.383101][ T254] ipv6_add_addr+0x411/0x2000 [ 1762.383101][ T254] inet6_addr_add+0x30e/0xa40 [ 1762.383101][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.383101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.383101][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.383101][ T254] netlink_unicast+0x449/0x710 [ 1762.383101][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.383101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.383101][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.383101][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.383101][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.383101][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.383101][ T254] [ 1762.385367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.385367][ T254] netdev_get_by_index+0x5e/0x80 [ 1762.385367][ T254] fib6_nh_init+0x3d8/0x1580 [ 1762.385367][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1762.385367][ T254] ip6_route_add+0x1c/0x140 [ 1762.385367][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1762.385367][ T254] addrconf_add_dev+0xe2/0x170 [ 1762.385367][ T254] inet6_addr_add+0x12f/0xa40 [ 1762.385367][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1762.385367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.385367][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.385367][ T254] netlink_unicast+0x449/0x710 [ 1762.385367][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.385367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.385367][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.385367][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.385367][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.385367][ T254] [ 1762.387596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.387596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1762.387596][ T254] ipv6_find_idev+0x102/0x170 [ 1762.387596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1762.387596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.387596][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.387596][ T254] netlink_unicast+0x449/0x710 [ 1762.387596][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.387596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.387596][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.387596][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.387596][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.387596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.387596][ T254] [ 1762.389432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1762.389432][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1762.389432][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1762.389432][ T254] ipv6_find_idev+0x102/0x170 [ 1762.389432][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1762.389432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1762.389432][ T254] netlink_rcv_skb+0x130/0x360 [ 1762.389432][ T254] netlink_unicast+0x449/0x710 [ 1762.389432][ T254] netlink_sendmsg+0x723/0xbe0 [ 1762.389432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1762.389432][ T254] ___sys_sendmsg+0xee/0x170 [ 1762.389432][ T254] __sys_sendmsg+0xcd/0x170 [ 1762.389432][ T254] do_syscall_64+0xc6/0x1e0 [ 1762.389432][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1762.389432][ T254] [ 1772.631781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1772.632353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.632353][ T254] dst_init+0x84/0x4a0 [ 1772.632353][ T254] dst_alloc+0x97/0x150 [ 1772.632353][ T254] ip6_dst_alloc+0x23/0x90 [ 1772.632353][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1772.632353][ T254] ip6_pol_route+0x56f/0x840 [ 1772.632353][ T254] fib6_rule_lookup+0x334/0x630 [ 1772.632353][ T254] ip6_route_output_flags+0x259/0x480 [ 1772.632353][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1772.632353][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1772.632353][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.632353][ T254] netlink_unicast+0x449/0x710 [ 1772.632353][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.632353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.632353][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.632353][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.632353][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.632353][ T254] [ 1772.634670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.634670][ T254] netdev_get_by_index+0x5e/0x80 [ 1772.634670][ T254] fib6_nh_init+0x3d8/0x1580 [ 1772.634670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1772.634670][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1772.634670][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1772.634670][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1772.634670][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1772.634670][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1772.634670][ T254] addrconf_dad_begin+0x310/0x670 [ 1772.634670][ T254] addrconf_dad_work+0x10b/0xab0 [ 1772.634670][ T254] process_one_work+0x84d/0x18a0 [ 1772.634670][ T254] worker_thread+0x587/0xd30 [ 1772.634670][ T254] kthread+0x28a/0x350 [ 1772.634670][ T254] ret_from_fork+0x31/0x70 [ 1772.634670][ T254] ret_from_fork_asm+0x1a/0x30 [ 1772.634670][ T254] [ 1772.636924][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.636924][ T254] netdev_get_by_index+0x5e/0x80 [ 1772.636924][ T254] fib6_nh_init+0x3d8/0x1580 [ 1772.636924][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1772.636924][ T254] ip6_route_add+0x1c/0x140 [ 1772.636924][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1772.636924][ T254] inet6_addr_add+0x4f8/0xa40 [ 1772.636924][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.636924][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.636924][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.636924][ T254] netlink_unicast+0x449/0x710 [ 1772.636924][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.636924][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.636924][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.636924][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.636924][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.636924][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.636924][ T254] [ 1772.639287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.639287][ T254] netdev_get_by_index+0x5e/0x80 [ 1772.639287][ T254] fib6_nh_init+0x3d8/0x1580 [ 1772.639287][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1772.639287][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1772.639287][ T254] ipv6_add_addr+0x411/0x2000 [ 1772.639287][ T254] inet6_addr_add+0x30e/0xa40 [ 1772.639287][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.639287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.639287][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.639287][ T254] netlink_unicast+0x449/0x710 [ 1772.639287][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.639287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.639287][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.639287][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.639287][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.639287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.639287][ T254] [ 1772.641640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.641640][ T254] netdev_get_by_index+0x5e/0x80 [ 1772.641640][ T254] fib6_nh_init+0x3d8/0x1580 [ 1772.641640][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1772.641640][ T254] ip6_route_add+0x1c/0x140 [ 1772.641640][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1772.641640][ T254] addrconf_add_dev+0xe2/0x170 [ 1772.641640][ T254] inet6_addr_add+0x12f/0xa40 [ 1772.641640][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1772.641640][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.641640][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.641640][ T254] netlink_unicast+0x449/0x710 [ 1772.641640][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.641640][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.641640][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.641640][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.641640][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.641640][ T254] [ 1772.643952][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.643952][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1772.643952][ T254] ipv6_find_idev+0x102/0x170 [ 1772.643952][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1772.643952][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.643952][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.643952][ T254] netlink_unicast+0x449/0x710 [ 1772.643952][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.643952][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.643952][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.643952][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.643952][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.643952][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.643952][ T254] [ 1772.645766][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1772.645766][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1772.645766][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1772.645766][ T254] ipv6_find_idev+0x102/0x170 [ 1772.645766][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1772.645766][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1772.645766][ T254] netlink_rcv_skb+0x130/0x360 [ 1772.645766][ T254] netlink_unicast+0x449/0x710 [ 1772.645766][ T254] netlink_sendmsg+0x723/0xbe0 [ 1772.645766][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1772.645766][ T254] ___sys_sendmsg+0xee/0x170 [ 1772.645766][ T254] __sys_sendmsg+0xcd/0x170 [ 1772.645766][ T254] do_syscall_64+0xc6/0x1e0 [ 1772.645766][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1772.645766][ T254] [ 1782.895883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1782.896449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.896449][ T254] dst_init+0x84/0x4a0 [ 1782.896449][ T254] dst_alloc+0x97/0x150 [ 1782.896449][ T254] ip6_dst_alloc+0x23/0x90 [ 1782.896449][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1782.896449][ T254] ip6_pol_route+0x56f/0x840 [ 1782.896449][ T254] fib6_rule_lookup+0x334/0x630 [ 1782.896449][ T254] ip6_route_output_flags+0x259/0x480 [ 1782.896449][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1782.896449][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1782.896449][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.896449][ T254] netlink_unicast+0x449/0x710 [ 1782.896449][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.896449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.896449][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.896449][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.896449][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.896449][ T254] [ 1782.898793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.898793][ T254] netdev_get_by_index+0x5e/0x80 [ 1782.898793][ T254] fib6_nh_init+0x3d8/0x1580 [ 1782.898793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1782.898793][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1782.898793][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1782.898793][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1782.898793][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1782.898793][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1782.898793][ T254] addrconf_dad_begin+0x310/0x670 [ 1782.898793][ T254] addrconf_dad_work+0x10b/0xab0 [ 1782.898793][ T254] process_one_work+0x84d/0x18a0 [ 1782.898793][ T254] worker_thread+0x587/0xd30 [ 1782.898793][ T254] kthread+0x28a/0x350 [ 1782.898793][ T254] ret_from_fork+0x31/0x70 [ 1782.898793][ T254] ret_from_fork_asm+0x1a/0x30 [ 1782.898793][ T254] [ 1782.901057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.901057][ T254] netdev_get_by_index+0x5e/0x80 [ 1782.901057][ T254] fib6_nh_init+0x3d8/0x1580 [ 1782.901057][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1782.901057][ T254] ip6_route_add+0x1c/0x140 [ 1782.901057][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1782.901057][ T254] inet6_addr_add+0x4f8/0xa40 [ 1782.901057][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.901057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.901057][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.901057][ T254] netlink_unicast+0x449/0x710 [ 1782.901057][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.901057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.901057][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.901057][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.901057][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.901057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.901057][ T254] [ 1782.903410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.903410][ T254] netdev_get_by_index+0x5e/0x80 [ 1782.903410][ T254] fib6_nh_init+0x3d8/0x1580 [ 1782.903410][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1782.903410][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1782.903410][ T254] ipv6_add_addr+0x411/0x2000 [ 1782.903410][ T254] inet6_addr_add+0x30e/0xa40 [ 1782.903410][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.903410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.903410][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.903410][ T254] netlink_unicast+0x449/0x710 [ 1782.903410][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.903410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.903410][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.903410][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.903410][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.903410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.903410][ T254] [ 1782.905771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.905771][ T254] netdev_get_by_index+0x5e/0x80 [ 1782.905771][ T254] fib6_nh_init+0x3d8/0x1580 [ 1782.905771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1782.905771][ T254] ip6_route_add+0x1c/0x140 [ 1782.905771][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1782.905771][ T254] addrconf_add_dev+0xe2/0x170 [ 1782.905771][ T254] inet6_addr_add+0x12f/0xa40 [ 1782.905771][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1782.905771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.905771][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.905771][ T254] netlink_unicast+0x449/0x710 [ 1782.905771][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.905771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.905771][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.905771][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.905771][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.905771][ T254] [ 1782.908097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.908097][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1782.908097][ T254] ipv6_find_idev+0x102/0x170 [ 1782.908097][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1782.908097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.908097][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.908097][ T254] netlink_unicast+0x449/0x710 [ 1782.908097][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.908097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.908097][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.908097][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.908097][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.908097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.908097][ T254] [ 1782.909911][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1782.909911][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1782.909911][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1782.909911][ T254] ipv6_find_idev+0x102/0x170 [ 1782.909911][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1782.909911][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1782.909911][ T254] netlink_rcv_skb+0x130/0x360 [ 1782.909911][ T254] netlink_unicast+0x449/0x710 [ 1782.909911][ T254] netlink_sendmsg+0x723/0xbe0 [ 1782.909911][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1782.909911][ T254] ___sys_sendmsg+0xee/0x170 [ 1782.909911][ T254] __sys_sendmsg+0xcd/0x170 [ 1782.909911][ T254] do_syscall_64+0xc6/0x1e0 [ 1782.909911][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1782.909911][ T254] [ 1792.983840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1792.984416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.984416][ T254] dst_init+0x84/0x4a0 [ 1792.984416][ T254] dst_alloc+0x97/0x150 [ 1792.984416][ T254] ip6_dst_alloc+0x23/0x90 [ 1792.984416][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1792.984416][ T254] ip6_pol_route+0x56f/0x840 [ 1792.984416][ T254] fib6_rule_lookup+0x334/0x630 [ 1792.984416][ T254] ip6_route_output_flags+0x259/0x480 [ 1792.984416][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1792.984416][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1792.984416][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.984416][ T254] netlink_unicast+0x449/0x710 [ 1792.984416][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.984416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.984416][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.984416][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.984416][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.984416][ T254] [ 1792.986736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.986736][ T254] netdev_get_by_index+0x5e/0x80 [ 1792.986736][ T254] fib6_nh_init+0x3d8/0x1580 [ 1792.986736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1792.986736][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1792.986736][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1792.986736][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1792.986736][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1792.986736][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1792.986736][ T254] addrconf_dad_begin+0x310/0x670 [ 1792.986736][ T254] addrconf_dad_work+0x10b/0xab0 [ 1792.986736][ T254] process_one_work+0x84d/0x18a0 [ 1792.986736][ T254] worker_thread+0x587/0xd30 [ 1792.986736][ T254] kthread+0x28a/0x350 [ 1792.986736][ T254] ret_from_fork+0x31/0x70 [ 1792.986736][ T254] ret_from_fork_asm+0x1a/0x30 [ 1792.986736][ T254] [ 1792.989022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.989022][ T254] netdev_get_by_index+0x5e/0x80 [ 1792.989022][ T254] fib6_nh_init+0x3d8/0x1580 [ 1792.989022][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1792.989022][ T254] ip6_route_add+0x1c/0x140 [ 1792.989022][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1792.989022][ T254] inet6_addr_add+0x4f8/0xa40 [ 1792.989022][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.989022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.989022][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.989022][ T254] netlink_unicast+0x449/0x710 [ 1792.989022][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.989022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.989022][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.989022][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.989022][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.989022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.989022][ T254] [ 1792.991378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.991378][ T254] netdev_get_by_index+0x5e/0x80 [ 1792.991378][ T254] fib6_nh_init+0x3d8/0x1580 [ 1792.991378][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1792.991378][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1792.991378][ T254] ipv6_add_addr+0x411/0x2000 [ 1792.991378][ T254] inet6_addr_add+0x30e/0xa40 [ 1792.991378][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.991378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.991378][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.991378][ T254] netlink_unicast+0x449/0x710 [ 1792.991378][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.991378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.991378][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.991378][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.991378][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.991378][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.991378][ T254] [ 1792.993741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.993741][ T254] netdev_get_by_index+0x5e/0x80 [ 1792.993741][ T254] fib6_nh_init+0x3d8/0x1580 [ 1792.993741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1792.993741][ T254] ip6_route_add+0x1c/0x140 [ 1792.993741][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1792.993741][ T254] addrconf_add_dev+0xe2/0x170 [ 1792.993741][ T254] inet6_addr_add+0x12f/0xa40 [ 1792.993741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1792.993741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.993741][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.993741][ T254] netlink_unicast+0x449/0x710 [ 1792.993741][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.993741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.993741][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.993741][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.993741][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.993741][ T254] [ 1792.996046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.996046][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1792.996046][ T254] ipv6_find_idev+0x102/0x170 [ 1792.996046][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1792.996046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.996046][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.996046][ T254] netlink_unicast+0x449/0x710 [ 1792.996046][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.996046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.996046][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.996046][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.996046][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.996046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.996046][ T254] [ 1792.997860][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1792.997860][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1792.997860][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1792.997860][ T254] ipv6_find_idev+0x102/0x170 [ 1792.997860][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1792.997860][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1792.997860][ T254] netlink_rcv_skb+0x130/0x360 [ 1792.997860][ T254] netlink_unicast+0x449/0x710 [ 1792.997860][ T254] netlink_sendmsg+0x723/0xbe0 [ 1792.997860][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1792.997860][ T254] ___sys_sendmsg+0xee/0x170 [ 1792.997860][ T254] __sys_sendmsg+0xcd/0x170 [ 1792.997860][ T254] do_syscall_64+0xc6/0x1e0 [ 1792.997860][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1792.997860][ T254] [ 1803.247862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1803.248445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.248445][ T254] dst_init+0x84/0x4a0 [ 1803.248445][ T254] dst_alloc+0x97/0x150 [ 1803.248445][ T254] ip6_dst_alloc+0x23/0x90 [ 1803.248445][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1803.248445][ T254] ip6_pol_route+0x56f/0x840 [ 1803.248445][ T254] fib6_rule_lookup+0x334/0x630 [ 1803.248445][ T254] ip6_route_output_flags+0x259/0x480 [ 1803.248445][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1803.248445][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1803.248445][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.248445][ T254] netlink_unicast+0x449/0x710 [ 1803.248445][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.248445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.248445][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.248445][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.248445][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.248445][ T254] [ 1803.250763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.250763][ T254] netdev_get_by_index+0x5e/0x80 [ 1803.250763][ T254] fib6_nh_init+0x3d8/0x1580 [ 1803.250763][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1803.250763][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1803.250763][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1803.250763][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1803.250763][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1803.250763][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1803.250763][ T254] addrconf_dad_begin+0x310/0x670 [ 1803.250763][ T254] addrconf_dad_work+0x10b/0xab0 [ 1803.250763][ T254] process_one_work+0x84d/0x18a0 [ 1803.250763][ T254] worker_thread+0x587/0xd30 [ 1803.250763][ T254] kthread+0x28a/0x350 [ 1803.250763][ T254] ret_from_fork+0x31/0x70 [ 1803.250763][ T254] ret_from_fork_asm+0x1a/0x30 [ 1803.250763][ T254] [ 1803.253024][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.253024][ T254] netdev_get_by_index+0x5e/0x80 [ 1803.253024][ T254] fib6_nh_init+0x3d8/0x1580 [ 1803.253024][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1803.253024][ T254] ip6_route_add+0x1c/0x140 [ 1803.253024][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1803.253024][ T254] inet6_addr_add+0x4f8/0xa40 [ 1803.253024][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.253024][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.253024][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.253024][ T254] netlink_unicast+0x449/0x710 [ 1803.253024][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.253024][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.253024][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.253024][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.253024][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.253024][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.253024][ T254] [ 1803.255371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.255371][ T254] netdev_get_by_index+0x5e/0x80 [ 1803.255371][ T254] fib6_nh_init+0x3d8/0x1580 [ 1803.255371][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1803.255371][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1803.255371][ T254] ipv6_add_addr+0x411/0x2000 [ 1803.255371][ T254] inet6_addr_add+0x30e/0xa40 [ 1803.255371][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.255371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.255371][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.255371][ T254] netlink_unicast+0x449/0x710 [ 1803.255371][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.255371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.255371][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.255371][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.255371][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.255371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.255371][ T254] [ 1803.257738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.257738][ T254] netdev_get_by_index+0x5e/0x80 [ 1803.257738][ T254] fib6_nh_init+0x3d8/0x1580 [ 1803.257738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1803.257738][ T254] ip6_route_add+0x1c/0x140 [ 1803.257738][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1803.257738][ T254] addrconf_add_dev+0xe2/0x170 [ 1803.257738][ T254] inet6_addr_add+0x12f/0xa40 [ 1803.257738][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1803.257738][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.257738][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.257738][ T254] netlink_unicast+0x449/0x710 [ 1803.257738][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.257738][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.257738][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.257738][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.257738][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.257738][ T254] [ 1803.260052][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.260052][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1803.260052][ T254] ipv6_find_idev+0x102/0x170 [ 1803.260052][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1803.260052][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.260052][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.260052][ T254] netlink_unicast+0x449/0x710 [ 1803.260052][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.260052][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.260052][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.260052][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.260052][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.260052][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.260052][ T254] [ 1803.261862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1803.261862][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1803.261862][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1803.261862][ T254] ipv6_find_idev+0x102/0x170 [ 1803.261862][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1803.261862][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1803.261862][ T254] netlink_rcv_skb+0x130/0x360 [ 1803.261862][ T254] netlink_unicast+0x449/0x710 [ 1803.261862][ T254] netlink_sendmsg+0x723/0xbe0 [ 1803.261862][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1803.261862][ T254] ___sys_sendmsg+0xee/0x170 [ 1803.261862][ T254] __sys_sendmsg+0xcd/0x170 [ 1803.261862][ T254] do_syscall_64+0xc6/0x1e0 [ 1803.261862][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1803.261862][ T254] [ 1813.383844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1813.384317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.384317][ T254] dst_init+0x84/0x4a0 [ 1813.384317][ T254] dst_alloc+0x97/0x150 [ 1813.384317][ T254] ip6_dst_alloc+0x23/0x90 [ 1813.384317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1813.384317][ T254] ip6_pol_route+0x56f/0x840 [ 1813.384317][ T254] fib6_rule_lookup+0x334/0x630 [ 1813.384317][ T254] ip6_route_output_flags+0x259/0x480 [ 1813.384317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1813.384317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1813.384317][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.384317][ T254] netlink_unicast+0x449/0x710 [ 1813.384317][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.384317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.384317][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.384317][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.384317][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.384317][ T254] [ 1813.386629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.386629][ T254] netdev_get_by_index+0x5e/0x80 [ 1813.386629][ T254] fib6_nh_init+0x3d8/0x1580 [ 1813.386629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1813.386629][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1813.386629][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1813.386629][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1813.386629][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1813.386629][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1813.386629][ T254] addrconf_dad_begin+0x310/0x670 [ 1813.386629][ T254] addrconf_dad_work+0x10b/0xab0 [ 1813.386629][ T254] process_one_work+0x84d/0x18a0 [ 1813.386629][ T254] worker_thread+0x587/0xd30 [ 1813.386629][ T254] kthread+0x28a/0x350 [ 1813.386629][ T254] ret_from_fork+0x31/0x70 [ 1813.386629][ T254] ret_from_fork_asm+0x1a/0x30 [ 1813.386629][ T254] [ 1813.388792][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.388792][ T254] netdev_get_by_index+0x5e/0x80 [ 1813.388792][ T254] fib6_nh_init+0x3d8/0x1580 [ 1813.388792][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1813.388792][ T254] ip6_route_add+0x1c/0x140 [ 1813.388792][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1813.388792][ T254] inet6_addr_add+0x4f8/0xa40 [ 1813.388792][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.388792][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.388792][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.388792][ T254] netlink_unicast+0x449/0x710 [ 1813.388792][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.388792][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.388792][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.388792][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.388792][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.388792][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.388792][ T254] [ 1813.391048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.391048][ T254] netdev_get_by_index+0x5e/0x80 [ 1813.391048][ T254] fib6_nh_init+0x3d8/0x1580 [ 1813.391048][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1813.391048][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1813.391048][ T254] ipv6_add_addr+0x411/0x2000 [ 1813.391048][ T254] inet6_addr_add+0x30e/0xa40 [ 1813.391048][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.391048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.391048][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.391048][ T254] netlink_unicast+0x449/0x710 [ 1813.391048][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.391048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.391048][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.391048][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.391048][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.391048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.391048][ T254] [ 1813.393285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.393285][ T254] netdev_get_by_index+0x5e/0x80 [ 1813.393285][ T254] fib6_nh_init+0x3d8/0x1580 [ 1813.393285][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1813.393285][ T254] ip6_route_add+0x1c/0x140 [ 1813.393285][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1813.393285][ T254] addrconf_add_dev+0xe2/0x170 [ 1813.393285][ T254] inet6_addr_add+0x12f/0xa40 [ 1813.393285][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1813.393285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.393285][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.393285][ T254] netlink_unicast+0x449/0x710 [ 1813.393285][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.393285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.393285][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.393285][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.393285][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.393285][ T254] [ 1813.395484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.395484][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1813.395484][ T254] ipv6_find_idev+0x102/0x170 [ 1813.395484][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1813.395484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.395484][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.395484][ T254] netlink_unicast+0x449/0x710 [ 1813.395484][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.395484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.395484][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.395484][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.395484][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.395484][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.395484][ T254] [ 1813.397208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1813.397208][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1813.397208][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1813.397208][ T254] ipv6_find_idev+0x102/0x170 [ 1813.397208][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1813.397208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1813.397208][ T254] netlink_rcv_skb+0x130/0x360 [ 1813.397208][ T254] netlink_unicast+0x449/0x710 [ 1813.397208][ T254] netlink_sendmsg+0x723/0xbe0 [ 1813.397208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1813.397208][ T254] ___sys_sendmsg+0xee/0x170 [ 1813.397208][ T254] __sys_sendmsg+0xcd/0x170 [ 1813.397208][ T254] do_syscall_64+0xc6/0x1e0 [ 1813.397208][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1813.397208][ T254] [ 1823.639883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1823.640353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.640353][ T254] dst_init+0x84/0x4a0 [ 1823.640353][ T254] dst_alloc+0x97/0x150 [ 1823.640353][ T254] ip6_dst_alloc+0x23/0x90 [ 1823.640353][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1823.640353][ T254] ip6_pol_route+0x56f/0x840 [ 1823.640353][ T254] fib6_rule_lookup+0x334/0x630 [ 1823.640353][ T254] ip6_route_output_flags+0x259/0x480 [ 1823.640353][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1823.640353][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1823.640353][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.640353][ T254] netlink_unicast+0x449/0x710 [ 1823.640353][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.640353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.640353][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.640353][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.640353][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.640353][ T254] [ 1823.642557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.642557][ T254] netdev_get_by_index+0x5e/0x80 [ 1823.642557][ T254] fib6_nh_init+0x3d8/0x1580 [ 1823.642557][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1823.642557][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1823.642557][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1823.642557][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1823.642557][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1823.642557][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1823.642557][ T254] addrconf_dad_begin+0x310/0x670 [ 1823.642557][ T254] addrconf_dad_work+0x10b/0xab0 [ 1823.642557][ T254] process_one_work+0x84d/0x18a0 [ 1823.642557][ T254] worker_thread+0x587/0xd30 [ 1823.642557][ T254] kthread+0x28a/0x350 [ 1823.642557][ T254] ret_from_fork+0x31/0x70 [ 1823.642557][ T254] ret_from_fork_asm+0x1a/0x30 [ 1823.642557][ T254] [ 1823.644711][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.644711][ T254] netdev_get_by_index+0x5e/0x80 [ 1823.644711][ T254] fib6_nh_init+0x3d8/0x1580 [ 1823.644711][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1823.644711][ T254] ip6_route_add+0x1c/0x140 [ 1823.644711][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1823.644711][ T254] inet6_addr_add+0x4f8/0xa40 [ 1823.644711][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.644711][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.644711][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.644711][ T254] netlink_unicast+0x449/0x710 [ 1823.644711][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.644711][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.644711][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.644711][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.644711][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.644711][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.644711][ T254] [ 1823.646957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.646957][ T254] netdev_get_by_index+0x5e/0x80 [ 1823.646957][ T254] fib6_nh_init+0x3d8/0x1580 [ 1823.646957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1823.646957][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1823.646957][ T254] ipv6_add_addr+0x411/0x2000 [ 1823.646957][ T254] inet6_addr_add+0x30e/0xa40 [ 1823.646957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.646957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.646957][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.646957][ T254] netlink_unicast+0x449/0x710 [ 1823.646957][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.646957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.646957][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.646957][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.646957][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.646957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.646957][ T254] [ 1823.649211][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.649211][ T254] netdev_get_by_index+0x5e/0x80 [ 1823.649211][ T254] fib6_nh_init+0x3d8/0x1580 [ 1823.649211][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1823.649211][ T254] ip6_route_add+0x1c/0x140 [ 1823.649211][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1823.649211][ T254] addrconf_add_dev+0xe2/0x170 [ 1823.649211][ T254] inet6_addr_add+0x12f/0xa40 [ 1823.649211][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1823.649211][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.649211][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.649211][ T254] netlink_unicast+0x449/0x710 [ 1823.649211][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.649211][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.649211][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.649211][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.649211][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.649211][ T254] [ 1823.651408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.651408][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1823.651408][ T254] ipv6_find_idev+0x102/0x170 [ 1823.651408][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1823.651408][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.651408][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.651408][ T254] netlink_unicast+0x449/0x710 [ 1823.651408][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.651408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.651408][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.651408][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.651408][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.651408][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.651408][ T254] [ 1823.653133][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1823.653133][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1823.653133][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1823.653133][ T254] ipv6_find_idev+0x102/0x170 [ 1823.653133][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1823.653133][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1823.653133][ T254] netlink_rcv_skb+0x130/0x360 [ 1823.653133][ T254] netlink_unicast+0x449/0x710 [ 1823.653133][ T254] netlink_sendmsg+0x723/0xbe0 [ 1823.653133][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1823.653133][ T254] ___sys_sendmsg+0xee/0x170 [ 1823.653133][ T254] __sys_sendmsg+0xcd/0x170 [ 1823.653133][ T254] do_syscall_64+0xc6/0x1e0 [ 1823.653133][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1823.653133][ T254] [ 1833.703906][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1833.704385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.704385][ T254] dst_init+0x84/0x4a0 [ 1833.704385][ T254] dst_alloc+0x97/0x150 [ 1833.704385][ T254] ip6_dst_alloc+0x23/0x90 [ 1833.704385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1833.704385][ T254] ip6_pol_route+0x56f/0x840 [ 1833.704385][ T254] fib6_rule_lookup+0x334/0x630 [ 1833.704385][ T254] ip6_route_output_flags+0x259/0x480 [ 1833.704385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1833.704385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1833.704385][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.704385][ T254] netlink_unicast+0x449/0x710 [ 1833.704385][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.704385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.704385][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.704385][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.704385][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.704385][ T254] [ 1833.706611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.706611][ T254] netdev_get_by_index+0x5e/0x80 [ 1833.706611][ T254] fib6_nh_init+0x3d8/0x1580 [ 1833.706611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1833.706611][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1833.706611][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1833.706611][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1833.706611][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1833.706611][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1833.706611][ T254] addrconf_dad_begin+0x310/0x670 [ 1833.706611][ T254] addrconf_dad_work+0x10b/0xab0 [ 1833.706611][ T254] process_one_work+0x84d/0x18a0 [ 1833.706611][ T254] worker_thread+0x587/0xd30 [ 1833.706611][ T254] kthread+0x28a/0x350 [ 1833.706611][ T254] ret_from_fork+0x31/0x70 [ 1833.706611][ T254] ret_from_fork_asm+0x1a/0x30 [ 1833.706611][ T254] [ 1833.708785][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.708785][ T254] netdev_get_by_index+0x5e/0x80 [ 1833.708785][ T254] fib6_nh_init+0x3d8/0x1580 [ 1833.708785][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1833.708785][ T254] ip6_route_add+0x1c/0x140 [ 1833.708785][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1833.708785][ T254] inet6_addr_add+0x4f8/0xa40 [ 1833.708785][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.708785][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.708785][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.708785][ T254] netlink_unicast+0x449/0x710 [ 1833.708785][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.708785][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.708785][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.708785][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.708785][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.708785][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.708785][ T254] [ 1833.711030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.711030][ T254] netdev_get_by_index+0x5e/0x80 [ 1833.711030][ T254] fib6_nh_init+0x3d8/0x1580 [ 1833.711030][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1833.711030][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1833.711030][ T254] ipv6_add_addr+0x411/0x2000 [ 1833.711030][ T254] inet6_addr_add+0x30e/0xa40 [ 1833.711030][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.711030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.711030][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.711030][ T254] netlink_unicast+0x449/0x710 [ 1833.711030][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.711030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.711030][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.711030][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.711030][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.711030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.711030][ T254] [ 1833.713275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.713275][ T254] netdev_get_by_index+0x5e/0x80 [ 1833.713275][ T254] fib6_nh_init+0x3d8/0x1580 [ 1833.713275][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1833.713275][ T254] ip6_route_add+0x1c/0x140 [ 1833.713275][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1833.713275][ T254] addrconf_add_dev+0xe2/0x170 [ 1833.713275][ T254] inet6_addr_add+0x12f/0xa40 [ 1833.713275][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1833.713275][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.713275][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.713275][ T254] netlink_unicast+0x449/0x710 [ 1833.713275][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.713275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.713275][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.713275][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.713275][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.713275][ T254] [ 1833.715480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.715480][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1833.715480][ T254] ipv6_find_idev+0x102/0x170 [ 1833.715480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1833.715480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.715480][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.715480][ T254] netlink_unicast+0x449/0x710 [ 1833.715480][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.715480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.715480][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.715480][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.715480][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.715480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.715480][ T254] [ 1833.717226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1833.717226][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1833.717226][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1833.717226][ T254] ipv6_find_idev+0x102/0x170 [ 1833.717226][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1833.717226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1833.717226][ T254] netlink_rcv_skb+0x130/0x360 [ 1833.717226][ T254] netlink_unicast+0x449/0x710 [ 1833.717226][ T254] netlink_sendmsg+0x723/0xbe0 [ 1833.717226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1833.717226][ T254] ___sys_sendmsg+0xee/0x170 [ 1833.717226][ T254] __sys_sendmsg+0xcd/0x170 [ 1833.717226][ T254] do_syscall_64+0xc6/0x1e0 [ 1833.717226][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1833.717226][ T254] [ 1843.751926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1843.753072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.753072][ T254] dst_init+0x84/0x4a0 [ 1843.753072][ T254] dst_alloc+0x97/0x150 [ 1843.753072][ T254] ip6_dst_alloc+0x23/0x90 [ 1843.753072][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1843.753072][ T254] ip6_pol_route+0x56f/0x840 [ 1843.753072][ T254] fib6_rule_lookup+0x334/0x630 [ 1843.753072][ T254] ip6_route_output_flags+0x259/0x480 [ 1843.753072][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1843.753072][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1843.753072][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.753072][ T254] netlink_unicast+0x449/0x710 [ 1843.753072][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.753072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.753072][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.753072][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.753072][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.753072][ T254] [ 1843.755333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.755333][ T254] netdev_get_by_index+0x5e/0x80 [ 1843.755333][ T254] fib6_nh_init+0x3d8/0x1580 [ 1843.755333][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1843.755333][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1843.755333][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1843.755333][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1843.755333][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1843.755333][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1843.755333][ T254] addrconf_dad_begin+0x310/0x670 [ 1843.755333][ T254] addrconf_dad_work+0x10b/0xab0 [ 1843.755333][ T254] process_one_work+0x84d/0x18a0 [ 1843.755333][ T254] worker_thread+0x587/0xd30 [ 1843.755333][ T254] kthread+0x28a/0x350 [ 1843.755333][ T254] ret_from_fork+0x31/0x70 [ 1843.755333][ T254] ret_from_fork_asm+0x1a/0x30 [ 1843.755333][ T254] [ 1843.757497][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.757497][ T254] netdev_get_by_index+0x5e/0x80 [ 1843.757497][ T254] fib6_nh_init+0x3d8/0x1580 [ 1843.757497][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1843.757497][ T254] ip6_route_add+0x1c/0x140 [ 1843.757497][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1843.757497][ T254] inet6_addr_add+0x4f8/0xa40 [ 1843.757497][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1843.757497][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1843.757497][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.757497][ T254] netlink_unicast+0x449/0x710 [ 1843.757497][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.757497][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.757497][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.757497][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.757497][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.757497][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1843.757497][ T254] [ 1843.759781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.759781][ T254] netdev_get_by_index+0x5e/0x80 [ 1843.759781][ T254] fib6_nh_init+0x3d8/0x1580 [ 1843.759781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1843.759781][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1843.759781][ T254] ipv6_add_addr+0x411/0x2000 [ 1843.759781][ T254] inet6_addr_add+0x30e/0xa40 [ 1843.759781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1843.759781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1843.759781][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.759781][ T254] netlink_unicast+0x449/0x710 [ 1843.759781][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.759781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.759781][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.759781][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.759781][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.759781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1843.759781][ T254] [ 1843.762035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.762035][ T254] netdev_get_by_index+0x5e/0x80 [ 1843.762035][ T254] fib6_nh_init+0x3d8/0x1580 [ 1843.762035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1843.762035][ T254] ip6_route_add+0x1c/0x140 [ 1843.762035][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1843.762035][ T254] addrconf_add_dev+0xe2/0x170 [ 1843.762035][ T254] inet6_addr_add+0x12f/0xa40 [ 1843.762035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1843.762035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1843.762035][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.762035][ T254] netlink_unicast+0x449/0x710 [ 1843.762035][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.762035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.762035][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.762035][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.762035][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.762035][ T254] [ 1843.764237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.764237][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1843.764237][ T254] ipv6_find_idev+0x102/0x170 [ 1843.764237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1843.764237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1843.764237][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.764237][ T254] netlink_unicast+0x449/0x710 [ 1843.764237][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.764237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.764237][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.764237][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.764237][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.764237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1843.764237][ T254] [ 1843.766564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1843.766564][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1843.766564][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1843.766564][ T254] ipv6_find_idev+0x102/0x170 [ 1843.766564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1843.766564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1843.766564][ T254] netlink_rcv_skb+0x130/0x360 [ 1843.766564][ T254] netlink_unicast+0x449/0x710 [ 1843.766564][ T254] netlink_sendmsg+0x723/0xbe0 [ 1843.766564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1843.766564][ T254] ___sys_sendmsg+0xee/0x170 [ 1843.766564][ T254] __sys_sendmsg+0xcd/0x170 [ 1843.766564][ T254] do_syscall_64+0xc6/0x1e0 [ 1843.766564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1843.766564][ T254] [ 1854.007880][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1854.008479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.008479][ T254] dst_init+0x84/0x4a0 [ 1854.008479][ T254] dst_alloc+0x97/0x150 [ 1854.008479][ T254] ip6_dst_alloc+0x23/0x90 [ 1854.008479][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1854.008479][ T254] ip6_pol_route+0x56f/0x840 [ 1854.008479][ T254] fib6_rule_lookup+0x334/0x630 [ 1854.008479][ T254] ip6_route_output_flags+0x259/0x480 [ 1854.008479][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1854.008479][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1854.008479][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.008479][ T254] netlink_unicast+0x449/0x710 [ 1854.008479][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.008479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.008479][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.008479][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.008479][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.008479][ T254] [ 1854.010698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.010698][ T254] netdev_get_by_index+0x5e/0x80 [ 1854.010698][ T254] fib6_nh_init+0x3d8/0x1580 [ 1854.010698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1854.010698][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1854.010698][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1854.010698][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1854.010698][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1854.010698][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1854.010698][ T254] addrconf_dad_begin+0x310/0x670 [ 1854.010698][ T254] addrconf_dad_work+0x10b/0xab0 [ 1854.010698][ T254] process_one_work+0x84d/0x18a0 [ 1854.010698][ T254] worker_thread+0x587/0xd30 [ 1854.010698][ T254] kthread+0x28a/0x350 [ 1854.010698][ T254] ret_from_fork+0x31/0x70 [ 1854.010698][ T254] ret_from_fork_asm+0x1a/0x30 [ 1854.010698][ T254] [ 1854.012846][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.012846][ T254] netdev_get_by_index+0x5e/0x80 [ 1854.012846][ T254] fib6_nh_init+0x3d8/0x1580 [ 1854.012846][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1854.012846][ T254] ip6_route_add+0x1c/0x140 [ 1854.012846][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1854.012846][ T254] inet6_addr_add+0x4f8/0xa40 [ 1854.012846][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.012846][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.012846][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.012846][ T254] netlink_unicast+0x449/0x710 [ 1854.012846][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.012846][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.012846][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.012846][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.012846][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.012846][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.012846][ T254] [ 1854.015096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.015096][ T254] netdev_get_by_index+0x5e/0x80 [ 1854.015096][ T254] fib6_nh_init+0x3d8/0x1580 [ 1854.015096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1854.015096][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1854.015096][ T254] ipv6_add_addr+0x411/0x2000 [ 1854.015096][ T254] inet6_addr_add+0x30e/0xa40 [ 1854.015096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.015096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.015096][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.015096][ T254] netlink_unicast+0x449/0x710 [ 1854.015096][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.015096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.015096][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.015096][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.015096][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.015096][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.015096][ T254] [ 1854.017339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.017339][ T254] netdev_get_by_index+0x5e/0x80 [ 1854.017339][ T254] fib6_nh_init+0x3d8/0x1580 [ 1854.017339][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1854.017339][ T254] ip6_route_add+0x1c/0x140 [ 1854.017339][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1854.017339][ T254] addrconf_add_dev+0xe2/0x170 [ 1854.017339][ T254] inet6_addr_add+0x12f/0xa40 [ 1854.017339][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1854.017339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.017339][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.017339][ T254] netlink_unicast+0x449/0x710 [ 1854.017339][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.017339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.017339][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.017339][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.017339][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.017339][ T254] [ 1854.019548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.019548][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1854.019548][ T254] ipv6_find_idev+0x102/0x170 [ 1854.019548][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1854.019548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.019548][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.019548][ T254] netlink_unicast+0x449/0x710 [ 1854.019548][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.019548][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.019548][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.019548][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.019548][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.019548][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.019548][ T254] [ 1854.021287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1854.021287][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1854.021287][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1854.021287][ T254] ipv6_find_idev+0x102/0x170 [ 1854.021287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1854.021287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1854.021287][ T254] netlink_rcv_skb+0x130/0x360 [ 1854.021287][ T254] netlink_unicast+0x449/0x710 [ 1854.021287][ T254] netlink_sendmsg+0x723/0xbe0 [ 1854.021287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1854.021287][ T254] ___sys_sendmsg+0xee/0x170 [ 1854.021287][ T254] __sys_sendmsg+0xcd/0x170 [ 1854.021287][ T254] do_syscall_64+0xc6/0x1e0 [ 1854.021287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1854.021287][ T254] [ 1864.263939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1864.264411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.264411][ T254] dst_init+0x84/0x4a0 [ 1864.264411][ T254] dst_alloc+0x97/0x150 [ 1864.264411][ T254] ip6_dst_alloc+0x23/0x90 [ 1864.264411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1864.264411][ T254] ip6_pol_route+0x56f/0x840 [ 1864.264411][ T254] fib6_rule_lookup+0x334/0x630 [ 1864.264411][ T254] ip6_route_output_flags+0x259/0x480 [ 1864.264411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1864.264411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1864.264411][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.264411][ T254] netlink_unicast+0x449/0x710 [ 1864.264411][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.264411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.264411][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.264411][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.264411][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.264411][ T254] [ 1864.266610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.266610][ T254] netdev_get_by_index+0x5e/0x80 [ 1864.266610][ T254] fib6_nh_init+0x3d8/0x1580 [ 1864.266610][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1864.266610][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1864.266610][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1864.266610][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1864.266610][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1864.266610][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1864.266610][ T254] addrconf_dad_begin+0x310/0x670 [ 1864.266610][ T254] addrconf_dad_work+0x10b/0xab0 [ 1864.266610][ T254] process_one_work+0x84d/0x18a0 [ 1864.266610][ T254] worker_thread+0x587/0xd30 [ 1864.266610][ T254] kthread+0x28a/0x350 [ 1864.266610][ T254] ret_from_fork+0x31/0x70 [ 1864.266610][ T254] ret_from_fork_asm+0x1a/0x30 [ 1864.266610][ T254] [ 1864.268765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.268765][ T254] netdev_get_by_index+0x5e/0x80 [ 1864.268765][ T254] fib6_nh_init+0x3d8/0x1580 [ 1864.268765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1864.268765][ T254] ip6_route_add+0x1c/0x140 [ 1864.268765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1864.268765][ T254] inet6_addr_add+0x4f8/0xa40 [ 1864.268765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.268765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.268765][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.268765][ T254] netlink_unicast+0x449/0x710 [ 1864.268765][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.268765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.268765][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.268765][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.268765][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.268765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.268765][ T254] [ 1864.271007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.271007][ T254] netdev_get_by_index+0x5e/0x80 [ 1864.271007][ T254] fib6_nh_init+0x3d8/0x1580 [ 1864.271007][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1864.271007][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1864.271007][ T254] ipv6_add_addr+0x411/0x2000 [ 1864.271007][ T254] inet6_addr_add+0x30e/0xa40 [ 1864.271007][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.271007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.271007][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.271007][ T254] netlink_unicast+0x449/0x710 [ 1864.271007][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.271007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.271007][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.271007][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.271007][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.271007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.271007][ T254] [ 1864.273251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.273251][ T254] netdev_get_by_index+0x5e/0x80 [ 1864.273251][ T254] fib6_nh_init+0x3d8/0x1580 [ 1864.273251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1864.273251][ T254] ip6_route_add+0x1c/0x140 [ 1864.273251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1864.273251][ T254] addrconf_add_dev+0xe2/0x170 [ 1864.273251][ T254] inet6_addr_add+0x12f/0xa40 [ 1864.273251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1864.273251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.273251][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.273251][ T254] netlink_unicast+0x449/0x710 [ 1864.273251][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.273251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.273251][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.273251][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.273251][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.273251][ T254] [ 1864.275453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.275453][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1864.275453][ T254] ipv6_find_idev+0x102/0x170 [ 1864.275453][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1864.275453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.275453][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.275453][ T254] netlink_unicast+0x449/0x710 [ 1864.275453][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.275453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.275453][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.275453][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.275453][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.275453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.275453][ T254] [ 1864.277193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1864.277193][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1864.277193][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1864.277193][ T254] ipv6_find_idev+0x102/0x170 [ 1864.277193][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1864.277193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1864.277193][ T254] netlink_rcv_skb+0x130/0x360 [ 1864.277193][ T254] netlink_unicast+0x449/0x710 [ 1864.277193][ T254] netlink_sendmsg+0x723/0xbe0 [ 1864.277193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1864.277193][ T254] ___sys_sendmsg+0xee/0x170 [ 1864.277193][ T254] __sys_sendmsg+0xcd/0x170 [ 1864.277193][ T254] do_syscall_64+0xc6/0x1e0 [ 1864.277193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1864.277193][ T254] [ 1874.407937][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1874.408408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.408408][ T254] dst_init+0x84/0x4a0 [ 1874.408408][ T254] dst_alloc+0x97/0x150 [ 1874.408408][ T254] ip6_dst_alloc+0x23/0x90 [ 1874.408408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1874.408408][ T254] ip6_pol_route+0x56f/0x840 [ 1874.408408][ T254] fib6_rule_lookup+0x334/0x630 [ 1874.408408][ T254] ip6_route_output_flags+0x259/0x480 [ 1874.408408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1874.408408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1874.408408][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.408408][ T254] netlink_unicast+0x449/0x710 [ 1874.408408][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.408408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.408408][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.408408][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.408408][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.408408][ T254] [ 1874.410630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.410630][ T254] netdev_get_by_index+0x5e/0x80 [ 1874.410630][ T254] fib6_nh_init+0x3d8/0x1580 [ 1874.410630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1874.410630][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1874.410630][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1874.410630][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1874.410630][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1874.410630][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1874.410630][ T254] addrconf_dad_begin+0x310/0x670 [ 1874.410630][ T254] addrconf_dad_work+0x10b/0xab0 [ 1874.410630][ T254] process_one_work+0x84d/0x18a0 [ 1874.410630][ T254] worker_thread+0x587/0xd30 [ 1874.410630][ T254] kthread+0x28a/0x350 [ 1874.410630][ T254] ret_from_fork+0x31/0x70 [ 1874.410630][ T254] ret_from_fork_asm+0x1a/0x30 [ 1874.410630][ T254] [ 1874.412789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.412789][ T254] netdev_get_by_index+0x5e/0x80 [ 1874.412789][ T254] fib6_nh_init+0x3d8/0x1580 [ 1874.412789][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1874.412789][ T254] ip6_route_add+0x1c/0x140 [ 1874.412789][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1874.412789][ T254] inet6_addr_add+0x4f8/0xa40 [ 1874.412789][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.412789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.412789][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.412789][ T254] netlink_unicast+0x449/0x710 [ 1874.412789][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.412789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.412789][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.412789][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.412789][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.412789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.412789][ T254] [ 1874.415100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.415100][ T254] netdev_get_by_index+0x5e/0x80 [ 1874.415100][ T254] fib6_nh_init+0x3d8/0x1580 [ 1874.415100][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1874.415100][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1874.415100][ T254] ipv6_add_addr+0x411/0x2000 [ 1874.415100][ T254] inet6_addr_add+0x30e/0xa40 [ 1874.415100][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.415100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.415100][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.415100][ T254] netlink_unicast+0x449/0x710 [ 1874.415100][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.415100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.415100][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.415100][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.415100][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.415100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.415100][ T254] [ 1874.417349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.417349][ T254] netdev_get_by_index+0x5e/0x80 [ 1874.417349][ T254] fib6_nh_init+0x3d8/0x1580 [ 1874.417349][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1874.417349][ T254] ip6_route_add+0x1c/0x140 [ 1874.417349][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1874.417349][ T254] addrconf_add_dev+0xe2/0x170 [ 1874.417349][ T254] inet6_addr_add+0x12f/0xa40 [ 1874.417349][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1874.417349][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.417349][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.417349][ T254] netlink_unicast+0x449/0x710 [ 1874.417349][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.417349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.417349][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.417349][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.417349][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.417349][ T254] [ 1874.419562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.419562][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1874.419562][ T254] ipv6_find_idev+0x102/0x170 [ 1874.419562][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1874.419562][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.419562][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.419562][ T254] netlink_unicast+0x449/0x710 [ 1874.419562][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.419562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.419562][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.419562][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.419562][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.419562][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.419562][ T254] [ 1874.421303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1874.421303][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1874.421303][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1874.421303][ T254] ipv6_find_idev+0x102/0x170 [ 1874.421303][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1874.421303][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1874.421303][ T254] netlink_rcv_skb+0x130/0x360 [ 1874.421303][ T254] netlink_unicast+0x449/0x710 [ 1874.421303][ T254] netlink_sendmsg+0x723/0xbe0 [ 1874.421303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1874.421303][ T254] ___sys_sendmsg+0xee/0x170 [ 1874.421303][ T254] __sys_sendmsg+0xcd/0x170 [ 1874.421303][ T254] do_syscall_64+0xc6/0x1e0 [ 1874.421303][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1874.421303][ T254] [ 1884.671923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1884.673082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.673082][ T254] dst_init+0x84/0x4a0 [ 1884.673082][ T254] dst_alloc+0x97/0x150 [ 1884.673082][ T254] ip6_dst_alloc+0x23/0x90 [ 1884.673082][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1884.673082][ T254] ip6_pol_route+0x56f/0x840 [ 1884.673082][ T254] fib6_rule_lookup+0x334/0x630 [ 1884.673082][ T254] ip6_route_output_flags+0x259/0x480 [ 1884.673082][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1884.673082][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1884.673082][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.673082][ T254] netlink_unicast+0x449/0x710 [ 1884.673082][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.673082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.673082][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.673082][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.673082][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.673082][ T254] [ 1884.675347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.675347][ T254] netdev_get_by_index+0x5e/0x80 [ 1884.675347][ T254] fib6_nh_init+0x3d8/0x1580 [ 1884.675347][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1884.675347][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1884.675347][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1884.675347][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1884.675347][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1884.675347][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1884.675347][ T254] addrconf_dad_begin+0x310/0x670 [ 1884.675347][ T254] addrconf_dad_work+0x10b/0xab0 [ 1884.675347][ T254] process_one_work+0x84d/0x18a0 [ 1884.675347][ T254] worker_thread+0x587/0xd30 [ 1884.675347][ T254] kthread+0x28a/0x350 [ 1884.675347][ T254] ret_from_fork+0x31/0x70 [ 1884.675347][ T254] ret_from_fork_asm+0x1a/0x30 [ 1884.675347][ T254] [ 1884.677541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.677541][ T254] netdev_get_by_index+0x5e/0x80 [ 1884.677541][ T254] fib6_nh_init+0x3d8/0x1580 [ 1884.677541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1884.677541][ T254] ip6_route_add+0x1c/0x140 [ 1884.677541][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1884.677541][ T254] inet6_addr_add+0x4f8/0xa40 [ 1884.677541][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.677541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.677541][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.677541][ T254] netlink_unicast+0x449/0x710 [ 1884.677541][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.677541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.677541][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.677541][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.677541][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.677541][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.677541][ T254] [ 1884.679803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.679803][ T254] netdev_get_by_index+0x5e/0x80 [ 1884.679803][ T254] fib6_nh_init+0x3d8/0x1580 [ 1884.679803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1884.679803][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1884.679803][ T254] ipv6_add_addr+0x411/0x2000 [ 1884.679803][ T254] inet6_addr_add+0x30e/0xa40 [ 1884.679803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.679803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.679803][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.679803][ T254] netlink_unicast+0x449/0x710 [ 1884.679803][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.679803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.679803][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.679803][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.679803][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.679803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.679803][ T254] [ 1884.682043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.682043][ T254] netdev_get_by_index+0x5e/0x80 [ 1884.682043][ T254] fib6_nh_init+0x3d8/0x1580 [ 1884.682043][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1884.682043][ T254] ip6_route_add+0x1c/0x140 [ 1884.682043][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1884.682043][ T254] addrconf_add_dev+0xe2/0x170 [ 1884.682043][ T254] inet6_addr_add+0x12f/0xa40 [ 1884.682043][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1884.682043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.682043][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.682043][ T254] netlink_unicast+0x449/0x710 [ 1884.682043][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.682043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.682043][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.682043][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.682043][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.682043][ T254] [ 1884.684243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.684243][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1884.684243][ T254] ipv6_find_idev+0x102/0x170 [ 1884.684243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1884.684243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.684243][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.684243][ T254] netlink_unicast+0x449/0x710 [ 1884.684243][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.684243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.684243][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.684243][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.684243][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.684243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.684243][ T254] [ 1884.685968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1884.685968][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1884.685968][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1884.685968][ T254] ipv6_find_idev+0x102/0x170 [ 1884.685968][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1884.685968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1884.685968][ T254] netlink_rcv_skb+0x130/0x360 [ 1884.685968][ T254] netlink_unicast+0x449/0x710 [ 1884.685968][ T254] netlink_sendmsg+0x723/0xbe0 [ 1884.685968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1884.685968][ T254] ___sys_sendmsg+0xee/0x170 [ 1884.685968][ T254] __sys_sendmsg+0xcd/0x170 [ 1884.685968][ T254] do_syscall_64+0xc6/0x1e0 [ 1884.685968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1884.685968][ T254] [ 1894.759884][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1894.760343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.760343][ T254] dst_init+0x84/0x4a0 [ 1894.760343][ T254] dst_alloc+0x97/0x150 [ 1894.760343][ T254] ip6_dst_alloc+0x23/0x90 [ 1894.760343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1894.760343][ T254] ip6_pol_route+0x56f/0x840 [ 1894.760343][ T254] fib6_rule_lookup+0x334/0x630 [ 1894.760343][ T254] ip6_route_output_flags+0x259/0x480 [ 1894.760343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1894.760343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1894.760343][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.760343][ T254] netlink_unicast+0x449/0x710 [ 1894.760343][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.760343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.760343][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.760343][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.760343][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.760343][ T254] [ 1894.762589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.762589][ T254] netdev_get_by_index+0x5e/0x80 [ 1894.762589][ T254] fib6_nh_init+0x3d8/0x1580 [ 1894.762589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1894.762589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1894.762589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1894.762589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1894.762589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1894.762589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1894.762589][ T254] addrconf_dad_begin+0x310/0x670 [ 1894.762589][ T254] addrconf_dad_work+0x10b/0xab0 [ 1894.762589][ T254] process_one_work+0x84d/0x18a0 [ 1894.762589][ T254] worker_thread+0x587/0xd30 [ 1894.762589][ T254] kthread+0x28a/0x350 [ 1894.762589][ T254] ret_from_fork+0x31/0x70 [ 1894.762589][ T254] ret_from_fork_asm+0x1a/0x30 [ 1894.762589][ T254] [ 1894.764764][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.764764][ T254] netdev_get_by_index+0x5e/0x80 [ 1894.764764][ T254] fib6_nh_init+0x3d8/0x1580 [ 1894.764764][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1894.764764][ T254] ip6_route_add+0x1c/0x140 [ 1894.764764][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1894.764764][ T254] inet6_addr_add+0x4f8/0xa40 [ 1894.764764][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1894.764764][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1894.764764][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.764764][ T254] netlink_unicast+0x449/0x710 [ 1894.764764][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.764764][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.764764][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.764764][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.764764][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.764764][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1894.764764][ T254] [ 1894.767070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.767070][ T254] netdev_get_by_index+0x5e/0x80 [ 1894.767070][ T254] fib6_nh_init+0x3d8/0x1580 [ 1894.767070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1894.767070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1894.767070][ T254] ipv6_add_addr+0x411/0x2000 [ 1894.767070][ T254] inet6_addr_add+0x30e/0xa40 [ 1894.767070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1894.767070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1894.767070][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.767070][ T254] netlink_unicast+0x449/0x710 [ 1894.767070][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.767070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.767070][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.767070][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.767070][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.767070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1894.767070][ T254] [ 1894.769333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.769333][ T254] netdev_get_by_index+0x5e/0x80 [ 1894.769333][ T254] fib6_nh_init+0x3d8/0x1580 [ 1894.769333][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1894.769333][ T254] ip6_route_add+0x1c/0x140 [ 1894.769333][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1894.769333][ T254] addrconf_add_dev+0xe2/0x170 [ 1894.769333][ T254] inet6_addr_add+0x12f/0xa40 [ 1894.769333][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1894.769333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1894.769333][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.769333][ T254] netlink_unicast+0x449/0x710 [ 1894.769333][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.769333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.769333][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.769333][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.769333][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.769333][ T254] [ 1894.771538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.771538][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1894.771538][ T254] ipv6_find_idev+0x102/0x170 [ 1894.771538][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1894.771538][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1894.771538][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.771538][ T254] netlink_unicast+0x449/0x710 [ 1894.771538][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.771538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.771538][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.771538][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.771538][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.771538][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1894.771538][ T254] [ 1894.773271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1894.773271][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1894.773271][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1894.773271][ T254] ipv6_find_idev+0x102/0x170 [ 1894.773271][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1894.773271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1894.773271][ T254] netlink_rcv_skb+0x130/0x360 [ 1894.773271][ T254] netlink_unicast+0x449/0x710 [ 1894.773271][ T254] netlink_sendmsg+0x723/0xbe0 [ 1894.773271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1894.773271][ T254] ___sys_sendmsg+0xee/0x170 [ 1894.773271][ T254] __sys_sendmsg+0xcd/0x170 [ 1894.773271][ T254] do_syscall_64+0xc6/0x1e0 [ 1894.773271][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1894.773271][ T254] [ 1905.015874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1905.016448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.016448][ T254] dst_init+0x84/0x4a0 [ 1905.016448][ T254] dst_alloc+0x97/0x150 [ 1905.016448][ T254] ip6_dst_alloc+0x23/0x90 [ 1905.016448][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1905.016448][ T254] ip6_pol_route+0x56f/0x840 [ 1905.016448][ T254] fib6_rule_lookup+0x334/0x630 [ 1905.016448][ T254] ip6_route_output_flags+0x259/0x480 [ 1905.016448][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1905.016448][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1905.016448][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.016448][ T254] netlink_unicast+0x449/0x710 [ 1905.016448][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.016448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.016448][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.016448][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.016448][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.016448][ T254] [ 1905.018680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.018680][ T254] netdev_get_by_index+0x5e/0x80 [ 1905.018680][ T254] fib6_nh_init+0x3d8/0x1580 [ 1905.018680][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1905.018680][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1905.018680][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1905.018680][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1905.018680][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1905.018680][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1905.018680][ T254] addrconf_dad_begin+0x310/0x670 [ 1905.018680][ T254] addrconf_dad_work+0x10b/0xab0 [ 1905.018680][ T254] process_one_work+0x84d/0x18a0 [ 1905.018680][ T254] worker_thread+0x587/0xd30 [ 1905.018680][ T254] kthread+0x28a/0x350 [ 1905.018680][ T254] ret_from_fork+0x31/0x70 [ 1905.018680][ T254] ret_from_fork_asm+0x1a/0x30 [ 1905.018680][ T254] [ 1905.020870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.020870][ T254] netdev_get_by_index+0x5e/0x80 [ 1905.020870][ T254] fib6_nh_init+0x3d8/0x1580 [ 1905.020870][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1905.020870][ T254] ip6_route_add+0x1c/0x140 [ 1905.020870][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1905.020870][ T254] inet6_addr_add+0x4f8/0xa40 [ 1905.020870][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.020870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.020870][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.020870][ T254] netlink_unicast+0x449/0x710 [ 1905.020870][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.020870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.020870][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.020870][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.020870][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.020870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.020870][ T254] [ 1905.023152][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.023152][ T254] netdev_get_by_index+0x5e/0x80 [ 1905.023152][ T254] fib6_nh_init+0x3d8/0x1580 [ 1905.023152][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1905.023152][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1905.023152][ T254] ipv6_add_addr+0x411/0x2000 [ 1905.023152][ T254] inet6_addr_add+0x30e/0xa40 [ 1905.023152][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.023152][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.023152][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.023152][ T254] netlink_unicast+0x449/0x710 [ 1905.023152][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.023152][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.023152][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.023152][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.023152][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.023152][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.023152][ T254] [ 1905.025423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.025423][ T254] netdev_get_by_index+0x5e/0x80 [ 1905.025423][ T254] fib6_nh_init+0x3d8/0x1580 [ 1905.025423][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1905.025423][ T254] ip6_route_add+0x1c/0x140 [ 1905.025423][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1905.025423][ T254] addrconf_add_dev+0xe2/0x170 [ 1905.025423][ T254] inet6_addr_add+0x12f/0xa40 [ 1905.025423][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1905.025423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.025423][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.025423][ T254] netlink_unicast+0x449/0x710 [ 1905.025423][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.025423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.025423][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.025423][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.025423][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.025423][ T254] [ 1905.027640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.027640][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1905.027640][ T254] ipv6_find_idev+0x102/0x170 [ 1905.027640][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1905.027640][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.027640][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.027640][ T254] netlink_unicast+0x449/0x710 [ 1905.027640][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.027640][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.027640][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.027640][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.027640][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.027640][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.027640][ T254] [ 1905.029373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1905.029373][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1905.029373][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1905.029373][ T254] ipv6_find_idev+0x102/0x170 [ 1905.029373][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1905.029373][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1905.029373][ T254] netlink_rcv_skb+0x130/0x360 [ 1905.029373][ T254] netlink_unicast+0x449/0x710 [ 1905.029373][ T254] netlink_sendmsg+0x723/0xbe0 [ 1905.029373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1905.029373][ T254] ___sys_sendmsg+0xee/0x170 [ 1905.029373][ T254] __sys_sendmsg+0xcd/0x170 [ 1905.029373][ T254] do_syscall_64+0xc6/0x1e0 [ 1905.029373][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1905.029373][ T254] [ 1915.263867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1915.264332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.264332][ T254] dst_init+0x84/0x4a0 [ 1915.264332][ T254] dst_alloc+0x97/0x150 [ 1915.264332][ T254] ip6_dst_alloc+0x23/0x90 [ 1915.264332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1915.264332][ T254] ip6_pol_route+0x56f/0x840 [ 1915.264332][ T254] fib6_rule_lookup+0x334/0x630 [ 1915.264332][ T254] ip6_route_output_flags+0x259/0x480 [ 1915.264332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1915.264332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1915.264332][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.264332][ T254] netlink_unicast+0x449/0x710 [ 1915.264332][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.264332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.264332][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.264332][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.264332][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.264332][ T254] [ 1915.266529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.266529][ T254] netdev_get_by_index+0x5e/0x80 [ 1915.266529][ T254] fib6_nh_init+0x3d8/0x1580 [ 1915.266529][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1915.266529][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1915.266529][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1915.266529][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1915.266529][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1915.266529][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1915.266529][ T254] addrconf_dad_begin+0x310/0x670 [ 1915.266529][ T254] addrconf_dad_work+0x10b/0xab0 [ 1915.266529][ T254] process_one_work+0x84d/0x18a0 [ 1915.266529][ T254] worker_thread+0x587/0xd30 [ 1915.266529][ T254] kthread+0x28a/0x350 [ 1915.266529][ T254] ret_from_fork+0x31/0x70 [ 1915.266529][ T254] ret_from_fork_asm+0x1a/0x30 [ 1915.266529][ T254] [ 1915.268692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.268692][ T254] netdev_get_by_index+0x5e/0x80 [ 1915.268692][ T254] fib6_nh_init+0x3d8/0x1580 [ 1915.268692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1915.268692][ T254] ip6_route_add+0x1c/0x140 [ 1915.268692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1915.268692][ T254] inet6_addr_add+0x4f8/0xa40 [ 1915.268692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.268692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.268692][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.268692][ T254] netlink_unicast+0x449/0x710 [ 1915.268692][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.268692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.268692][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.268692][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.268692][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.268692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.268692][ T254] [ 1915.270935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.270935][ T254] netdev_get_by_index+0x5e/0x80 [ 1915.270935][ T254] fib6_nh_init+0x3d8/0x1580 [ 1915.270935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1915.270935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1915.270935][ T254] ipv6_add_addr+0x411/0x2000 [ 1915.270935][ T254] inet6_addr_add+0x30e/0xa40 [ 1915.270935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.270935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.270935][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.270935][ T254] netlink_unicast+0x449/0x710 [ 1915.270935][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.270935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.270935][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.270935][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.270935][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.270935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.270935][ T254] [ 1915.273179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.273179][ T254] netdev_get_by_index+0x5e/0x80 [ 1915.273179][ T254] fib6_nh_init+0x3d8/0x1580 [ 1915.273179][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1915.273179][ T254] ip6_route_add+0x1c/0x140 [ 1915.273179][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1915.273179][ T254] addrconf_add_dev+0xe2/0x170 [ 1915.273179][ T254] inet6_addr_add+0x12f/0xa40 [ 1915.273179][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1915.273179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.273179][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.273179][ T254] netlink_unicast+0x449/0x710 [ 1915.273179][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.273179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.273179][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.273179][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.273179][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.273179][ T254] [ 1915.275392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.275392][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1915.275392][ T254] ipv6_find_idev+0x102/0x170 [ 1915.275392][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1915.275392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.275392][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.275392][ T254] netlink_unicast+0x449/0x710 [ 1915.275392][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.275392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.275392][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.275392][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.275392][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.275392][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.275392][ T254] [ 1915.277122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1915.277122][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1915.277122][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1915.277122][ T254] ipv6_find_idev+0x102/0x170 [ 1915.277122][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1915.277122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1915.277122][ T254] netlink_rcv_skb+0x130/0x360 [ 1915.277122][ T254] netlink_unicast+0x449/0x710 [ 1915.277122][ T254] netlink_sendmsg+0x723/0xbe0 [ 1915.277122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1915.277122][ T254] ___sys_sendmsg+0xee/0x170 [ 1915.277122][ T254] __sys_sendmsg+0xcd/0x170 [ 1915.277122][ T254] do_syscall_64+0xc6/0x1e0 [ 1915.277122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1915.277122][ T254] [ 1925.407870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1925.408476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.408476][ T254] dst_init+0x84/0x4a0 [ 1925.408476][ T254] dst_alloc+0x97/0x150 [ 1925.408476][ T254] ip6_dst_alloc+0x23/0x90 [ 1925.408476][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1925.408476][ T254] ip6_pol_route+0x56f/0x840 [ 1925.408476][ T254] fib6_rule_lookup+0x334/0x630 [ 1925.408476][ T254] ip6_route_output_flags+0x259/0x480 [ 1925.408476][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1925.408476][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1925.408476][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.408476][ T254] netlink_unicast+0x449/0x710 [ 1925.408476][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.408476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.408476][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.408476][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.408476][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.408476][ T254] [ 1925.410997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.410997][ T254] netdev_get_by_index+0x5e/0x80 [ 1925.410997][ T254] fib6_nh_init+0x3d8/0x1580 [ 1925.410997][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1925.410997][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1925.410997][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1925.410997][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1925.410997][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1925.410997][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1925.410997][ T254] addrconf_dad_begin+0x310/0x670 [ 1925.410997][ T254] addrconf_dad_work+0x10b/0xab0 [ 1925.410997][ T254] process_one_work+0x84d/0x18a0 [ 1925.410997][ T254] worker_thread+0x587/0xd30 [ 1925.410997][ T254] kthread+0x28a/0x350 [ 1925.410997][ T254] ret_from_fork+0x31/0x70 [ 1925.410997][ T254] ret_from_fork_asm+0x1a/0x30 [ 1925.410997][ T254] [ 1925.413148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.413148][ T254] netdev_get_by_index+0x5e/0x80 [ 1925.413148][ T254] fib6_nh_init+0x3d8/0x1580 [ 1925.413148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1925.413148][ T254] ip6_route_add+0x1c/0x140 [ 1925.413148][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1925.413148][ T254] inet6_addr_add+0x4f8/0xa40 [ 1925.413148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.413148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.413148][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.413148][ T254] netlink_unicast+0x449/0x710 [ 1925.413148][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.413148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.413148][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.413148][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.413148][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.413148][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.413148][ T254] [ 1925.415433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.415433][ T254] netdev_get_by_index+0x5e/0x80 [ 1925.415433][ T254] fib6_nh_init+0x3d8/0x1580 [ 1925.415433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1925.415433][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1925.415433][ T254] ipv6_add_addr+0x411/0x2000 [ 1925.415433][ T254] inet6_addr_add+0x30e/0xa40 [ 1925.415433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.415433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.415433][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.415433][ T254] netlink_unicast+0x449/0x710 [ 1925.415433][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.415433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.415433][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.415433][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.415433][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.415433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.415433][ T254] [ 1925.417681][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.417681][ T254] netdev_get_by_index+0x5e/0x80 [ 1925.417681][ T254] fib6_nh_init+0x3d8/0x1580 [ 1925.417681][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1925.417681][ T254] ip6_route_add+0x1c/0x140 [ 1925.417681][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1925.417681][ T254] addrconf_add_dev+0xe2/0x170 [ 1925.417681][ T254] inet6_addr_add+0x12f/0xa40 [ 1925.417681][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1925.417681][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.417681][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.417681][ T254] netlink_unicast+0x449/0x710 [ 1925.417681][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.417681][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.417681][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.417681][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.417681][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.417681][ T254] [ 1925.419895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.419895][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1925.419895][ T254] ipv6_find_idev+0x102/0x170 [ 1925.419895][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1925.419895][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.419895][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.419895][ T254] netlink_unicast+0x449/0x710 [ 1925.419895][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.419895][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.419895][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.419895][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.419895][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.419895][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.419895][ T254] [ 1925.421619][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1925.421619][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1925.421619][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1925.421619][ T254] ipv6_find_idev+0x102/0x170 [ 1925.421619][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1925.421619][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1925.421619][ T254] netlink_rcv_skb+0x130/0x360 [ 1925.421619][ T254] netlink_unicast+0x449/0x710 [ 1925.421619][ T254] netlink_sendmsg+0x723/0xbe0 [ 1925.421619][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1925.421619][ T254] ___sys_sendmsg+0xee/0x170 [ 1925.421619][ T254] __sys_sendmsg+0xcd/0x170 [ 1925.421619][ T254] do_syscall_64+0xc6/0x1e0 [ 1925.421619][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1925.421619][ T254] [ 1935.663914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1935.664524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.664524][ T254] dst_init+0x84/0x4a0 [ 1935.664524][ T254] dst_alloc+0x97/0x150 [ 1935.664524][ T254] ip6_dst_alloc+0x23/0x90 [ 1935.664524][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1935.664524][ T254] ip6_pol_route+0x56f/0x840 [ 1935.664524][ T254] fib6_rule_lookup+0x334/0x630 [ 1935.664524][ T254] ip6_route_output_flags+0x259/0x480 [ 1935.664524][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1935.664524][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1935.664524][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.664524][ T254] netlink_unicast+0x449/0x710 [ 1935.664524][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.664524][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.664524][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.664524][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.664524][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.664524][ T254] [ 1935.666787][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.666787][ T254] netdev_get_by_index+0x5e/0x80 [ 1935.666787][ T254] fib6_nh_init+0x3d8/0x1580 [ 1935.666787][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1935.666787][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1935.666787][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1935.666787][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1935.666787][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1935.666787][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1935.666787][ T254] addrconf_dad_begin+0x310/0x670 [ 1935.666787][ T254] addrconf_dad_work+0x10b/0xab0 [ 1935.666787][ T254] process_one_work+0x84d/0x18a0 [ 1935.666787][ T254] worker_thread+0x587/0xd30 [ 1935.666787][ T254] kthread+0x28a/0x350 [ 1935.666787][ T254] ret_from_fork+0x31/0x70 [ 1935.666787][ T254] ret_from_fork_asm+0x1a/0x30 [ 1935.666787][ T254] [ 1935.668977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.668977][ T254] netdev_get_by_index+0x5e/0x80 [ 1935.668977][ T254] fib6_nh_init+0x3d8/0x1580 [ 1935.668977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1935.668977][ T254] ip6_route_add+0x1c/0x140 [ 1935.668977][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1935.668977][ T254] inet6_addr_add+0x4f8/0xa40 [ 1935.668977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1935.668977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1935.668977][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.668977][ T254] netlink_unicast+0x449/0x710 [ 1935.668977][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.668977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.668977][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.668977][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.668977][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.668977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1935.668977][ T254] [ 1935.671247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.671247][ T254] netdev_get_by_index+0x5e/0x80 [ 1935.671247][ T254] fib6_nh_init+0x3d8/0x1580 [ 1935.671247][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1935.671247][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1935.671247][ T254] ipv6_add_addr+0x411/0x2000 [ 1935.671247][ T254] inet6_addr_add+0x30e/0xa40 [ 1935.671247][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1935.671247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1935.671247][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.671247][ T254] netlink_unicast+0x449/0x710 [ 1935.671247][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.671247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.671247][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.671247][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.671247][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.671247][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1935.671247][ T254] [ 1935.673523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.673523][ T254] netdev_get_by_index+0x5e/0x80 [ 1935.673523][ T254] fib6_nh_init+0x3d8/0x1580 [ 1935.673523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1935.673523][ T254] ip6_route_add+0x1c/0x140 [ 1935.673523][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1935.673523][ T254] addrconf_add_dev+0xe2/0x170 [ 1935.673523][ T254] inet6_addr_add+0x12f/0xa40 [ 1935.673523][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1935.673523][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1935.673523][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.673523][ T254] netlink_unicast+0x449/0x710 [ 1935.673523][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.673523][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.673523][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.673523][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.673523][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.673523][ T254] [ 1935.675721][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.675721][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1935.675721][ T254] ipv6_find_idev+0x102/0x170 [ 1935.675721][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1935.675721][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1935.675721][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.675721][ T254] netlink_unicast+0x449/0x710 [ 1935.675721][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.675721][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.675721][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.675721][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.675721][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.675721][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1935.675721][ T254] [ 1935.677458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1935.677458][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1935.677458][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1935.677458][ T254] ipv6_find_idev+0x102/0x170 [ 1935.677458][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1935.677458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1935.677458][ T254] netlink_rcv_skb+0x130/0x360 [ 1935.677458][ T254] netlink_unicast+0x449/0x710 [ 1935.677458][ T254] netlink_sendmsg+0x723/0xbe0 [ 1935.677458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1935.677458][ T254] ___sys_sendmsg+0xee/0x170 [ 1935.677458][ T254] __sys_sendmsg+0xcd/0x170 [ 1935.677458][ T254] do_syscall_64+0xc6/0x1e0 [ 1935.677458][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1935.677458][ T254] [ 1945.919916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1945.920810][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.920810][ T254] dst_init+0x84/0x4a0 [ 1945.920810][ T254] dst_alloc+0x97/0x150 [ 1945.920810][ T254] ip6_dst_alloc+0x23/0x90 [ 1945.920810][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1945.920810][ T254] ip6_pol_route+0x56f/0x840 [ 1945.920810][ T254] fib6_rule_lookup+0x334/0x630 [ 1945.920810][ T254] ip6_route_output_flags+0x259/0x480 [ 1945.920810][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1945.920810][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1945.920810][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.920810][ T254] netlink_unicast+0x449/0x710 [ 1945.920810][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.920810][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.920810][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.920810][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.920810][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.920810][ T254] [ 1945.923057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.923057][ T254] netdev_get_by_index+0x5e/0x80 [ 1945.923057][ T254] fib6_nh_init+0x3d8/0x1580 [ 1945.923057][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1945.923057][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1945.923057][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1945.923057][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1945.923057][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1945.923057][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1945.923057][ T254] addrconf_dad_begin+0x310/0x670 [ 1945.923057][ T254] addrconf_dad_work+0x10b/0xab0 [ 1945.923057][ T254] process_one_work+0x84d/0x18a0 [ 1945.923057][ T254] worker_thread+0x587/0xd30 [ 1945.923057][ T254] kthread+0x28a/0x350 [ 1945.923057][ T254] ret_from_fork+0x31/0x70 [ 1945.923057][ T254] ret_from_fork_asm+0x1a/0x30 [ 1945.923057][ T254] [ 1945.925865][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.925865][ T254] netdev_get_by_index+0x5e/0x80 [ 1945.925865][ T254] fib6_nh_init+0x3d8/0x1580 [ 1945.925865][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1945.925865][ T254] ip6_route_add+0x1c/0x140 [ 1945.925865][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1945.925865][ T254] inet6_addr_add+0x4f8/0xa40 [ 1945.925865][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1945.925865][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1945.925865][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.925865][ T254] netlink_unicast+0x449/0x710 [ 1945.925865][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.925865][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.925865][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.925865][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.925865][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.925865][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1945.925865][ T254] [ 1945.929485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.929485][ T254] netdev_get_by_index+0x5e/0x80 [ 1945.929485][ T254] fib6_nh_init+0x3d8/0x1580 [ 1945.929485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1945.929485][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1945.929485][ T254] ipv6_add_addr+0x411/0x2000 [ 1945.929485][ T254] inet6_addr_add+0x30e/0xa40 [ 1945.929485][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1945.929485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1945.929485][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.929485][ T254] netlink_unicast+0x449/0x710 [ 1945.929485][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.929485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.929485][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.929485][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.929485][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.929485][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1945.929485][ T254] [ 1945.933061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.933061][ T254] netdev_get_by_index+0x5e/0x80 [ 1945.933061][ T254] fib6_nh_init+0x3d8/0x1580 [ 1945.933061][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1945.933061][ T254] ip6_route_add+0x1c/0x140 [ 1945.933061][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1945.933061][ T254] addrconf_add_dev+0xe2/0x170 [ 1945.933061][ T254] inet6_addr_add+0x12f/0xa40 [ 1945.933061][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1945.933061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1945.933061][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.933061][ T254] netlink_unicast+0x449/0x710 [ 1945.933061][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.933061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.933061][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.933061][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.933061][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.933061][ T254] [ 1945.936582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.936582][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1945.936582][ T254] ipv6_find_idev+0x102/0x170 [ 1945.936582][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1945.936582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1945.936582][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.936582][ T254] netlink_unicast+0x449/0x710 [ 1945.936582][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.936582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.936582][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.936582][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.936582][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.936582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1945.936582][ T254] [ 1945.939363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1945.939363][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1945.939363][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1945.939363][ T254] ipv6_find_idev+0x102/0x170 [ 1945.939363][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1945.939363][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1945.939363][ T254] netlink_rcv_skb+0x130/0x360 [ 1945.939363][ T254] netlink_unicast+0x449/0x710 [ 1945.939363][ T254] netlink_sendmsg+0x723/0xbe0 [ 1945.939363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1945.939363][ T254] ___sys_sendmsg+0xee/0x170 [ 1945.939363][ T254] __sys_sendmsg+0xcd/0x170 [ 1945.939363][ T254] do_syscall_64+0xc6/0x1e0 [ 1945.939363][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1945.939363][ T254] [ 1956.183920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1956.184624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.184624][ T254] dst_init+0x84/0x4a0 [ 1956.184624][ T254] dst_alloc+0x97/0x150 [ 1956.184624][ T254] ip6_dst_alloc+0x23/0x90 [ 1956.184624][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1956.184624][ T254] ip6_pol_route+0x56f/0x840 [ 1956.184624][ T254] fib6_rule_lookup+0x334/0x630 [ 1956.184624][ T254] ip6_route_output_flags+0x259/0x480 [ 1956.184624][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1956.184624][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1956.184624][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.184624][ T254] netlink_unicast+0x449/0x710 [ 1956.184624][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.184624][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.184624][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.184624][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.184624][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.184624][ T254] [ 1956.186861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.186861][ T254] netdev_get_by_index+0x5e/0x80 [ 1956.186861][ T254] fib6_nh_init+0x3d8/0x1580 [ 1956.186861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1956.186861][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1956.186861][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1956.186861][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1956.186861][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1956.186861][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1956.186861][ T254] addrconf_dad_begin+0x310/0x670 [ 1956.186861][ T254] addrconf_dad_work+0x10b/0xab0 [ 1956.186861][ T254] process_one_work+0x84d/0x18a0 [ 1956.186861][ T254] worker_thread+0x587/0xd30 [ 1956.186861][ T254] kthread+0x28a/0x350 [ 1956.186861][ T254] ret_from_fork+0x31/0x70 [ 1956.186861][ T254] ret_from_fork_asm+0x1a/0x30 [ 1956.186861][ T254] [ 1956.189052][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.189052][ T254] netdev_get_by_index+0x5e/0x80 [ 1956.189052][ T254] fib6_nh_init+0x3d8/0x1580 [ 1956.189052][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1956.189052][ T254] ip6_route_add+0x1c/0x140 [ 1956.189052][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1956.189052][ T254] inet6_addr_add+0x4f8/0xa40 [ 1956.189052][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.189052][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.189052][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.189052][ T254] netlink_unicast+0x449/0x710 [ 1956.189052][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.189052][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.189052][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.189052][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.189052][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.189052][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.189052][ T254] [ 1956.191296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.191296][ T254] netdev_get_by_index+0x5e/0x80 [ 1956.191296][ T254] fib6_nh_init+0x3d8/0x1580 [ 1956.191296][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1956.191296][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1956.191296][ T254] ipv6_add_addr+0x411/0x2000 [ 1956.191296][ T254] inet6_addr_add+0x30e/0xa40 [ 1956.191296][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.191296][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.191296][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.191296][ T254] netlink_unicast+0x449/0x710 [ 1956.191296][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.191296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.191296][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.191296][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.191296][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.191296][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.191296][ T254] [ 1956.193547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.193547][ T254] netdev_get_by_index+0x5e/0x80 [ 1956.193547][ T254] fib6_nh_init+0x3d8/0x1580 [ 1956.193547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1956.193547][ T254] ip6_route_add+0x1c/0x140 [ 1956.193547][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1956.193547][ T254] addrconf_add_dev+0xe2/0x170 [ 1956.193547][ T254] inet6_addr_add+0x12f/0xa40 [ 1956.193547][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1956.193547][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.193547][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.193547][ T254] netlink_unicast+0x449/0x710 [ 1956.193547][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.193547][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.193547][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.193547][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.193547][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.193547][ T254] [ 1956.195787][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.195787][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1956.195787][ T254] ipv6_find_idev+0x102/0x170 [ 1956.195787][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1956.195787][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.195787][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.195787][ T254] netlink_unicast+0x449/0x710 [ 1956.195787][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.195787][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.195787][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.195787][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.195787][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.195787][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.195787][ T254] [ 1956.197520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1956.197520][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1956.197520][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1956.197520][ T254] ipv6_find_idev+0x102/0x170 [ 1956.197520][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1956.197520][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1956.197520][ T254] netlink_rcv_skb+0x130/0x360 [ 1956.197520][ T254] netlink_unicast+0x449/0x710 [ 1956.197520][ T254] netlink_sendmsg+0x723/0xbe0 [ 1956.197520][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1956.197520][ T254] ___sys_sendmsg+0xee/0x170 [ 1956.197520][ T254] __sys_sendmsg+0xcd/0x170 [ 1956.197520][ T254] do_syscall_64+0xc6/0x1e0 [ 1956.197520][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1956.197520][ T254] [ 1966.439896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1966.440445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.440445][ T254] dst_init+0x84/0x4a0 [ 1966.440445][ T254] dst_alloc+0x97/0x150 [ 1966.440445][ T254] ip6_dst_alloc+0x23/0x90 [ 1966.440445][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1966.440445][ T254] ip6_pol_route+0x56f/0x840 [ 1966.440445][ T254] fib6_rule_lookup+0x334/0x630 [ 1966.440445][ T254] ip6_route_output_flags+0x259/0x480 [ 1966.440445][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1966.440445][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1966.440445][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.440445][ T254] netlink_unicast+0x449/0x710 [ 1966.440445][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.440445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.440445][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.440445][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.440445][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.440445][ T254] [ 1966.442689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.442689][ T254] netdev_get_by_index+0x5e/0x80 [ 1966.442689][ T254] fib6_nh_init+0x3d8/0x1580 [ 1966.442689][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1966.442689][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1966.442689][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1966.442689][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1966.442689][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1966.442689][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1966.442689][ T254] addrconf_dad_begin+0x310/0x670 [ 1966.442689][ T254] addrconf_dad_work+0x10b/0xab0 [ 1966.442689][ T254] process_one_work+0x84d/0x18a0 [ 1966.442689][ T254] worker_thread+0x587/0xd30 [ 1966.442689][ T254] kthread+0x28a/0x350 [ 1966.442689][ T254] ret_from_fork+0x31/0x70 [ 1966.442689][ T254] ret_from_fork_asm+0x1a/0x30 [ 1966.442689][ T254] [ 1966.444890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.444890][ T254] netdev_get_by_index+0x5e/0x80 [ 1966.444890][ T254] fib6_nh_init+0x3d8/0x1580 [ 1966.444890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1966.444890][ T254] ip6_route_add+0x1c/0x140 [ 1966.444890][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1966.444890][ T254] inet6_addr_add+0x4f8/0xa40 [ 1966.444890][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.444890][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.444890][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.444890][ T254] netlink_unicast+0x449/0x710 [ 1966.444890][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.444890][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.444890][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.444890][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.444890][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.444890][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.444890][ T254] [ 1966.447181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.447181][ T254] netdev_get_by_index+0x5e/0x80 [ 1966.447181][ T254] fib6_nh_init+0x3d8/0x1580 [ 1966.447181][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1966.447181][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1966.447181][ T254] ipv6_add_addr+0x411/0x2000 [ 1966.447181][ T254] inet6_addr_add+0x30e/0xa40 [ 1966.447181][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.447181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.447181][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.447181][ T254] netlink_unicast+0x449/0x710 [ 1966.447181][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.447181][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.447181][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.447181][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.447181][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.447181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.447181][ T254] [ 1966.449464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.449464][ T254] netdev_get_by_index+0x5e/0x80 [ 1966.449464][ T254] fib6_nh_init+0x3d8/0x1580 [ 1966.449464][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1966.449464][ T254] ip6_route_add+0x1c/0x140 [ 1966.449464][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1966.449464][ T254] addrconf_add_dev+0xe2/0x170 [ 1966.449464][ T254] inet6_addr_add+0x12f/0xa40 [ 1966.449464][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1966.449464][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.449464][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.449464][ T254] netlink_unicast+0x449/0x710 [ 1966.449464][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.449464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.449464][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.449464][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.449464][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.449464][ T254] [ 1966.451680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.451680][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1966.451680][ T254] ipv6_find_idev+0x102/0x170 [ 1966.451680][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1966.451680][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.451680][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.451680][ T254] netlink_unicast+0x449/0x710 [ 1966.451680][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.451680][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.451680][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.451680][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.451680][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.451680][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.451680][ T254] [ 1966.453409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1966.453409][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1966.453409][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1966.453409][ T254] ipv6_find_idev+0x102/0x170 [ 1966.453409][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1966.453409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1966.453409][ T254] netlink_rcv_skb+0x130/0x360 [ 1966.453409][ T254] netlink_unicast+0x449/0x710 [ 1966.453409][ T254] netlink_sendmsg+0x723/0xbe0 [ 1966.453409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1966.453409][ T254] ___sys_sendmsg+0xee/0x170 [ 1966.453409][ T254] __sys_sendmsg+0xcd/0x170 [ 1966.453409][ T254] do_syscall_64+0xc6/0x1e0 [ 1966.453409][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1966.453409][ T254] [ 1976.703932][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1976.704562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.704562][ T254] dst_init+0x84/0x4a0 [ 1976.704562][ T254] dst_alloc+0x97/0x150 [ 1976.704562][ T254] ip6_dst_alloc+0x23/0x90 [ 1976.704562][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1976.704562][ T254] ip6_pol_route+0x56f/0x840 [ 1976.704562][ T254] fib6_rule_lookup+0x334/0x630 [ 1976.704562][ T254] ip6_route_output_flags+0x259/0x480 [ 1976.704562][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1976.704562][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1976.704562][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.704562][ T254] netlink_unicast+0x449/0x710 [ 1976.704562][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.704562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.704562][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.704562][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.704562][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.704562][ T254] [ 1976.706801][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.706801][ T254] netdev_get_by_index+0x5e/0x80 [ 1976.706801][ T254] fib6_nh_init+0x3d8/0x1580 [ 1976.706801][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1976.706801][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1976.706801][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1976.706801][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1976.706801][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1976.706801][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1976.706801][ T254] addrconf_dad_begin+0x310/0x670 [ 1976.706801][ T254] addrconf_dad_work+0x10b/0xab0 [ 1976.706801][ T254] process_one_work+0x84d/0x18a0 [ 1976.706801][ T254] worker_thread+0x587/0xd30 [ 1976.706801][ T254] kthread+0x28a/0x350 [ 1976.706801][ T254] ret_from_fork+0x31/0x70 [ 1976.706801][ T254] ret_from_fork_asm+0x1a/0x30 [ 1976.706801][ T254] [ 1976.709030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.709030][ T254] netdev_get_by_index+0x5e/0x80 [ 1976.709030][ T254] fib6_nh_init+0x3d8/0x1580 [ 1976.709030][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1976.709030][ T254] ip6_route_add+0x1c/0x140 [ 1976.709030][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1976.709030][ T254] inet6_addr_add+0x4f8/0xa40 [ 1976.709030][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.709030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.709030][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.709030][ T254] netlink_unicast+0x449/0x710 [ 1976.709030][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.709030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.709030][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.709030][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.709030][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.709030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.709030][ T254] [ 1976.711333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.711333][ T254] netdev_get_by_index+0x5e/0x80 [ 1976.711333][ T254] fib6_nh_init+0x3d8/0x1580 [ 1976.711333][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1976.711333][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1976.711333][ T254] ipv6_add_addr+0x411/0x2000 [ 1976.711333][ T254] inet6_addr_add+0x30e/0xa40 [ 1976.711333][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.711333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.711333][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.711333][ T254] netlink_unicast+0x449/0x710 [ 1976.711333][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.711333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.711333][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.711333][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.711333][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.711333][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.711333][ T254] [ 1976.713611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.713611][ T254] netdev_get_by_index+0x5e/0x80 [ 1976.713611][ T254] fib6_nh_init+0x3d8/0x1580 [ 1976.713611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1976.713611][ T254] ip6_route_add+0x1c/0x140 [ 1976.713611][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1976.713611][ T254] addrconf_add_dev+0xe2/0x170 [ 1976.713611][ T254] inet6_addr_add+0x12f/0xa40 [ 1976.713611][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1976.713611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.713611][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.713611][ T254] netlink_unicast+0x449/0x710 [ 1976.713611][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.713611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.713611][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.713611][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.713611][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.713611][ T254] [ 1976.715807][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.715807][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1976.715807][ T254] ipv6_find_idev+0x102/0x170 [ 1976.715807][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1976.715807][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.715807][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.715807][ T254] netlink_unicast+0x449/0x710 [ 1976.715807][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.715807][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.715807][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.715807][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.715807][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.715807][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.715807][ T254] [ 1976.717539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1976.717539][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1976.717539][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1976.717539][ T254] ipv6_find_idev+0x102/0x170 [ 1976.717539][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1976.717539][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1976.717539][ T254] netlink_rcv_skb+0x130/0x360 [ 1976.717539][ T254] netlink_unicast+0x449/0x710 [ 1976.717539][ T254] netlink_sendmsg+0x723/0xbe0 [ 1976.717539][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1976.717539][ T254] ___sys_sendmsg+0xee/0x170 [ 1976.717539][ T254] __sys_sendmsg+0xcd/0x170 [ 1976.717539][ T254] do_syscall_64+0xc6/0x1e0 [ 1976.717539][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1976.717539][ T254] [ 1986.959928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1986.960543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.960543][ T254] dst_init+0x84/0x4a0 [ 1986.960543][ T254] dst_alloc+0x97/0x150 [ 1986.960543][ T254] ip6_dst_alloc+0x23/0x90 [ 1986.960543][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1986.960543][ T254] ip6_pol_route+0x56f/0x840 [ 1986.960543][ T254] fib6_rule_lookup+0x334/0x630 [ 1986.960543][ T254] ip6_route_output_flags+0x259/0x480 [ 1986.960543][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1986.960543][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1986.960543][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.960543][ T254] netlink_unicast+0x449/0x710 [ 1986.960543][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.960543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.960543][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.960543][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.960543][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.960543][ T254] [ 1986.962796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.962796][ T254] netdev_get_by_index+0x5e/0x80 [ 1986.962796][ T254] fib6_nh_init+0x3d8/0x1580 [ 1986.962796][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1986.962796][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1986.962796][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1986.962796][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1986.962796][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1986.962796][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1986.962796][ T254] addrconf_dad_begin+0x310/0x670 [ 1986.962796][ T254] addrconf_dad_work+0x10b/0xab0 [ 1986.962796][ T254] process_one_work+0x84d/0x18a0 [ 1986.962796][ T254] worker_thread+0x587/0xd30 [ 1986.962796][ T254] kthread+0x28a/0x350 [ 1986.962796][ T254] ret_from_fork+0x31/0x70 [ 1986.962796][ T254] ret_from_fork_asm+0x1a/0x30 [ 1986.962796][ T254] [ 1986.965024][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.965024][ T254] netdev_get_by_index+0x5e/0x80 [ 1986.965024][ T254] fib6_nh_init+0x3d8/0x1580 [ 1986.965024][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1986.965024][ T254] ip6_route_add+0x1c/0x140 [ 1986.965024][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1986.965024][ T254] inet6_addr_add+0x4f8/0xa40 [ 1986.965024][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1986.965024][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1986.965024][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.965024][ T254] netlink_unicast+0x449/0x710 [ 1986.965024][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.965024][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.965024][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.965024][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.965024][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.965024][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1986.965024][ T254] [ 1986.967316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.967316][ T254] netdev_get_by_index+0x5e/0x80 [ 1986.967316][ T254] fib6_nh_init+0x3d8/0x1580 [ 1986.967316][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1986.967316][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1986.967316][ T254] ipv6_add_addr+0x411/0x2000 [ 1986.967316][ T254] inet6_addr_add+0x30e/0xa40 [ 1986.967316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1986.967316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1986.967316][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.967316][ T254] netlink_unicast+0x449/0x710 [ 1986.967316][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.967316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.967316][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.967316][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.967316][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.967316][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1986.967316][ T254] [ 1986.969584][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.969584][ T254] netdev_get_by_index+0x5e/0x80 [ 1986.969584][ T254] fib6_nh_init+0x3d8/0x1580 [ 1986.969584][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1986.969584][ T254] ip6_route_add+0x1c/0x140 [ 1986.969584][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1986.969584][ T254] addrconf_add_dev+0xe2/0x170 [ 1986.969584][ T254] inet6_addr_add+0x12f/0xa40 [ 1986.969584][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1986.969584][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1986.969584][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.969584][ T254] netlink_unicast+0x449/0x710 [ 1986.969584][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.969584][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.969584][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.969584][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.969584][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.969584][ T254] [ 1986.971783][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.971783][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1986.971783][ T254] ipv6_find_idev+0x102/0x170 [ 1986.971783][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1986.971783][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1986.971783][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.971783][ T254] netlink_unicast+0x449/0x710 [ 1986.971783][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.971783][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.971783][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.971783][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.971783][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.971783][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1986.971783][ T254] [ 1986.973511][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1986.973511][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1986.973511][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1986.973511][ T254] ipv6_find_idev+0x102/0x170 [ 1986.973511][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1986.973511][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1986.973511][ T254] netlink_rcv_skb+0x130/0x360 [ 1986.973511][ T254] netlink_unicast+0x449/0x710 [ 1986.973511][ T254] netlink_sendmsg+0x723/0xbe0 [ 1986.973511][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1986.973511][ T254] ___sys_sendmsg+0xee/0x170 [ 1986.973511][ T254] __sys_sendmsg+0xcd/0x170 [ 1986.973511][ T254] do_syscall_64+0xc6/0x1e0 [ 1986.973511][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1986.973511][ T254] [ 1997.191953][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 1997.192580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.192580][ T254] dst_init+0x84/0x4a0 [ 1997.192580][ T254] dst_alloc+0x97/0x150 [ 1997.192580][ T254] ip6_dst_alloc+0x23/0x90 [ 1997.192580][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 1997.192580][ T254] ip6_pol_route+0x56f/0x840 [ 1997.192580][ T254] fib6_rule_lookup+0x334/0x630 [ 1997.192580][ T254] ip6_route_output_flags+0x259/0x480 [ 1997.192580][ T254] inet6_rtm_getroute+0x980/0xf70 [ 1997.192580][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 1997.192580][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.192580][ T254] netlink_unicast+0x449/0x710 [ 1997.192580][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.192580][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.192580][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.192580][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.192580][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.192580][ T254] [ 1997.194840][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.194840][ T254] netdev_get_by_index+0x5e/0x80 [ 1997.194840][ T254] fib6_nh_init+0x3d8/0x1580 [ 1997.194840][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1997.194840][ T254] addrconf_f6i_alloc+0x265/0x560 [ 1997.194840][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 1997.194840][ T254] addrconf_join_anycast+0x1c0/0x220 [ 1997.194840][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 1997.194840][ T254] addrconf_dad_completed+0x12b/0xe20 [ 1997.194840][ T254] addrconf_dad_begin+0x310/0x670 [ 1997.194840][ T254] addrconf_dad_work+0x10b/0xab0 [ 1997.194840][ T254] process_one_work+0x84d/0x18a0 [ 1997.194840][ T254] worker_thread+0x587/0xd30 [ 1997.194840][ T254] kthread+0x28a/0x350 [ 1997.194840][ T254] ret_from_fork+0x31/0x70 [ 1997.194840][ T254] ret_from_fork_asm+0x1a/0x30 [ 1997.194840][ T254] [ 1997.197053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.197053][ T254] netdev_get_by_index+0x5e/0x80 [ 1997.197053][ T254] fib6_nh_init+0x3d8/0x1580 [ 1997.197053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1997.197053][ T254] ip6_route_add+0x1c/0x140 [ 1997.197053][ T254] addrconf_prefix_route+0x2a6/0x430 [ 1997.197053][ T254] inet6_addr_add+0x4f8/0xa40 [ 1997.197053][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.197053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.197053][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.197053][ T254] netlink_unicast+0x449/0x710 [ 1997.197053][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.197053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.197053][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.197053][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.197053][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.197053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.197053][ T254] [ 1997.199364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.199364][ T254] netdev_get_by_index+0x5e/0x80 [ 1997.199364][ T254] fib6_nh_init+0x3d8/0x1580 [ 1997.199364][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1997.199364][ T254] addrconf_f6i_alloc+0x315/0x560 [ 1997.199364][ T254] ipv6_add_addr+0x411/0x2000 [ 1997.199364][ T254] inet6_addr_add+0x30e/0xa40 [ 1997.199364][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.199364][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.199364][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.199364][ T254] netlink_unicast+0x449/0x710 [ 1997.199364][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.199364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.199364][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.199364][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.199364][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.199364][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.199364][ T254] [ 1997.201651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.201651][ T254] netdev_get_by_index+0x5e/0x80 [ 1997.201651][ T254] fib6_nh_init+0x3d8/0x1580 [ 1997.201651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 1997.201651][ T254] ip6_route_add+0x1c/0x140 [ 1997.201651][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 1997.201651][ T254] addrconf_add_dev+0xe2/0x170 [ 1997.201651][ T254] inet6_addr_add+0x12f/0xa40 [ 1997.201651][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 1997.201651][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.201651][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.201651][ T254] netlink_unicast+0x449/0x710 [ 1997.201651][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.201651][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.201651][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.201651][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.201651][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.201651][ T254] [ 1997.203880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.203880][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 1997.203880][ T254] ipv6_find_idev+0x102/0x170 [ 1997.203880][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.203880][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.203880][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.203880][ T254] netlink_unicast+0x449/0x710 [ 1997.203880][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.203880][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.203880][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.203880][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.203880][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.203880][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.203880][ T254] [ 1997.205611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 1997.205611][ T254] neigh_parms_alloc+0x1e5/0x510 [ 1997.205611][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 1997.205611][ T254] ipv6_find_idev+0x102/0x170 [ 1997.205611][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 1997.205611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 1997.205611][ T254] netlink_rcv_skb+0x130/0x360 [ 1997.205611][ T254] netlink_unicast+0x449/0x710 [ 1997.205611][ T254] netlink_sendmsg+0x723/0xbe0 [ 1997.205611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 1997.205611][ T254] ___sys_sendmsg+0xee/0x170 [ 1997.205611][ T254] __sys_sendmsg+0xcd/0x170 [ 1997.205611][ T254] do_syscall_64+0xc6/0x1e0 [ 1997.205611][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 1997.205611][ T254] [ 2007.311933][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2007.312546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.312546][ T254] dst_init+0x84/0x4a0 [ 2007.312546][ T254] dst_alloc+0x97/0x150 [ 2007.312546][ T254] ip6_dst_alloc+0x23/0x90 [ 2007.312546][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2007.312546][ T254] ip6_pol_route+0x56f/0x840 [ 2007.312546][ T254] fib6_rule_lookup+0x334/0x630 [ 2007.312546][ T254] ip6_route_output_flags+0x259/0x480 [ 2007.312546][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2007.312546][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2007.312546][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.312546][ T254] netlink_unicast+0x449/0x710 [ 2007.312546][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.312546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.312546][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.312546][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.312546][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.312546][ T254] [ 2007.314804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.314804][ T254] netdev_get_by_index+0x5e/0x80 [ 2007.314804][ T254] fib6_nh_init+0x3d8/0x1580 [ 2007.314804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2007.314804][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2007.314804][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2007.314804][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2007.314804][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2007.314804][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2007.314804][ T254] addrconf_dad_begin+0x310/0x670 [ 2007.314804][ T254] addrconf_dad_work+0x10b/0xab0 [ 2007.314804][ T254] process_one_work+0x84d/0x18a0 [ 2007.314804][ T254] worker_thread+0x587/0xd30 [ 2007.314804][ T254] kthread+0x28a/0x350 [ 2007.314804][ T254] ret_from_fork+0x31/0x70 [ 2007.314804][ T254] ret_from_fork_asm+0x1a/0x30 [ 2007.314804][ T254] [ 2007.316978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.316978][ T254] netdev_get_by_index+0x5e/0x80 [ 2007.316978][ T254] fib6_nh_init+0x3d8/0x1580 [ 2007.316978][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2007.316978][ T254] ip6_route_add+0x1c/0x140 [ 2007.316978][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2007.316978][ T254] inet6_addr_add+0x4f8/0xa40 [ 2007.316978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.316978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.316978][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.316978][ T254] netlink_unicast+0x449/0x710 [ 2007.316978][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.316978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.316978][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.316978][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.316978][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.316978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.316978][ T254] [ 2007.319786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.319786][ T254] netdev_get_by_index+0x5e/0x80 [ 2007.319786][ T254] fib6_nh_init+0x3d8/0x1580 [ 2007.319786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2007.319786][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2007.319786][ T254] ipv6_add_addr+0x411/0x2000 [ 2007.319786][ T254] inet6_addr_add+0x30e/0xa40 [ 2007.319786][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.319786][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.319786][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.319786][ T254] netlink_unicast+0x449/0x710 [ 2007.319786][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.319786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.319786][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.319786][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.319786][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.319786][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.319786][ T254] [ 2007.322033][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.322033][ T254] netdev_get_by_index+0x5e/0x80 [ 2007.322033][ T254] fib6_nh_init+0x3d8/0x1580 [ 2007.322033][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2007.322033][ T254] ip6_route_add+0x1c/0x140 [ 2007.322033][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2007.322033][ T254] addrconf_add_dev+0xe2/0x170 [ 2007.322033][ T254] inet6_addr_add+0x12f/0xa40 [ 2007.322033][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2007.322033][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.322033][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.322033][ T254] netlink_unicast+0x449/0x710 [ 2007.322033][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.322033][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.322033][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.322033][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.322033][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.322033][ T254] [ 2007.324236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.324236][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2007.324236][ T254] ipv6_find_idev+0x102/0x170 [ 2007.324236][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.324236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.324236][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.324236][ T254] netlink_unicast+0x449/0x710 [ 2007.324236][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.324236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.324236][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.324236][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.324236][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.324236][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.324236][ T254] [ 2007.325964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2007.325964][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2007.325964][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2007.325964][ T254] ipv6_find_idev+0x102/0x170 [ 2007.325964][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2007.325964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2007.325964][ T254] netlink_rcv_skb+0x130/0x360 [ 2007.325964][ T254] netlink_unicast+0x449/0x710 [ 2007.325964][ T254] netlink_sendmsg+0x723/0xbe0 [ 2007.325964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2007.325964][ T254] ___sys_sendmsg+0xee/0x170 [ 2007.325964][ T254] __sys_sendmsg+0xcd/0x170 [ 2007.325964][ T254] do_syscall_64+0xc6/0x1e0 [ 2007.325964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2007.325964][ T254] [ 2017.519944][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2017.520563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.520563][ T254] dst_init+0x84/0x4a0 [ 2017.520563][ T254] dst_alloc+0x97/0x150 [ 2017.520563][ T254] ip6_dst_alloc+0x23/0x90 [ 2017.520563][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2017.520563][ T254] ip6_pol_route+0x56f/0x840 [ 2017.520563][ T254] fib6_rule_lookup+0x334/0x630 [ 2017.520563][ T254] ip6_route_output_flags+0x259/0x480 [ 2017.520563][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2017.520563][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2017.520563][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.520563][ T254] netlink_unicast+0x449/0x710 [ 2017.520563][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.520563][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.520563][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.520563][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.520563][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.520563][ T254] [ 2017.522788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.522788][ T254] netdev_get_by_index+0x5e/0x80 [ 2017.522788][ T254] fib6_nh_init+0x3d8/0x1580 [ 2017.522788][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2017.522788][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2017.522788][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2017.522788][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2017.522788][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2017.522788][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2017.522788][ T254] addrconf_dad_begin+0x310/0x670 [ 2017.522788][ T254] addrconf_dad_work+0x10b/0xab0 [ 2017.522788][ T254] process_one_work+0x84d/0x18a0 [ 2017.522788][ T254] worker_thread+0x587/0xd30 [ 2017.522788][ T254] kthread+0x28a/0x350 [ 2017.522788][ T254] ret_from_fork+0x31/0x70 [ 2017.522788][ T254] ret_from_fork_asm+0x1a/0x30 [ 2017.522788][ T254] [ 2017.524947][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.524947][ T254] netdev_get_by_index+0x5e/0x80 [ 2017.524947][ T254] fib6_nh_init+0x3d8/0x1580 [ 2017.524947][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2017.524947][ T254] ip6_route_add+0x1c/0x140 [ 2017.524947][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2017.524947][ T254] inet6_addr_add+0x4f8/0xa40 [ 2017.524947][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.524947][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.524947][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.524947][ T254] netlink_unicast+0x449/0x710 [ 2017.524947][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.524947][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.524947][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.524947][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.524947][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.524947][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.524947][ T254] [ 2017.527195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.527195][ T254] netdev_get_by_index+0x5e/0x80 [ 2017.527195][ T254] fib6_nh_init+0x3d8/0x1580 [ 2017.527195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2017.527195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2017.527195][ T254] ipv6_add_addr+0x411/0x2000 [ 2017.527195][ T254] inet6_addr_add+0x30e/0xa40 [ 2017.527195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.527195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.527195][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.527195][ T254] netlink_unicast+0x449/0x710 [ 2017.527195][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.527195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.527195][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.527195][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.527195][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.527195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.527195][ T254] [ 2017.529454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.529454][ T254] netdev_get_by_index+0x5e/0x80 [ 2017.529454][ T254] fib6_nh_init+0x3d8/0x1580 [ 2017.529454][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2017.529454][ T254] ip6_route_add+0x1c/0x140 [ 2017.529454][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2017.529454][ T254] addrconf_add_dev+0xe2/0x170 [ 2017.529454][ T254] inet6_addr_add+0x12f/0xa40 [ 2017.529454][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2017.529454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.529454][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.529454][ T254] netlink_unicast+0x449/0x710 [ 2017.529454][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.529454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.529454][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.529454][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.529454][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.529454][ T254] [ 2017.531659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.531659][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2017.531659][ T254] ipv6_find_idev+0x102/0x170 [ 2017.531659][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2017.531659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.531659][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.531659][ T254] netlink_unicast+0x449/0x710 [ 2017.531659][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.531659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.531659][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.531659][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.531659][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.531659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.531659][ T254] [ 2017.533430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2017.533430][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2017.533430][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2017.533430][ T254] ipv6_find_idev+0x102/0x170 [ 2017.533430][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2017.533430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2017.533430][ T254] netlink_rcv_skb+0x130/0x360 [ 2017.533430][ T254] netlink_unicast+0x449/0x710 [ 2017.533430][ T254] netlink_sendmsg+0x723/0xbe0 [ 2017.533430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2017.533430][ T254] ___sys_sendmsg+0xee/0x170 [ 2017.533430][ T254] __sys_sendmsg+0xcd/0x170 [ 2017.533430][ T254] do_syscall_64+0xc6/0x1e0 [ 2017.533430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2017.533430][ T254] [ 2027.775938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2027.776465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.776465][ T254] dst_init+0x84/0x4a0 [ 2027.776465][ T254] dst_alloc+0x97/0x150 [ 2027.776465][ T254] ip6_dst_alloc+0x23/0x90 [ 2027.776465][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2027.776465][ T254] ip6_pol_route+0x56f/0x840 [ 2027.776465][ T254] fib6_rule_lookup+0x334/0x630 [ 2027.776465][ T254] ip6_route_output_flags+0x259/0x480 [ 2027.776465][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2027.776465][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2027.776465][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.776465][ T254] netlink_unicast+0x449/0x710 [ 2027.776465][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.776465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.776465][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.776465][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.776465][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.776465][ T254] [ 2027.779921][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.779921][ T254] netdev_get_by_index+0x5e/0x80 [ 2027.779921][ T254] fib6_nh_init+0x3d8/0x1580 [ 2027.779921][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2027.779921][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2027.779921][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2027.779921][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2027.779921][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2027.779921][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2027.779921][ T254] addrconf_dad_begin+0x310/0x670 [ 2027.779921][ T254] addrconf_dad_work+0x10b/0xab0 [ 2027.779921][ T254] process_one_work+0x84d/0x18a0 [ 2027.779921][ T254] worker_thread+0x587/0xd30 [ 2027.779921][ T254] kthread+0x28a/0x350 [ 2027.779921][ T254] ret_from_fork+0x31/0x70 [ 2027.779921][ T254] ret_from_fork_asm+0x1a/0x30 [ 2027.779921][ T254] [ 2027.783464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.783464][ T254] netdev_get_by_index+0x5e/0x80 [ 2027.783464][ T254] fib6_nh_init+0x3d8/0x1580 [ 2027.783464][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2027.783464][ T254] ip6_route_add+0x1c/0x140 [ 2027.783464][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2027.783464][ T254] inet6_addr_add+0x4f8/0xa40 [ 2027.783464][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2027.783464][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2027.783464][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.783464][ T254] netlink_unicast+0x449/0x710 [ 2027.783464][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.783464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.783464][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.783464][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.783464][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.783464][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2027.783464][ T254] [ 2027.787102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.787102][ T254] netdev_get_by_index+0x5e/0x80 [ 2027.787102][ T254] fib6_nh_init+0x3d8/0x1580 [ 2027.787102][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2027.787102][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2027.787102][ T254] ipv6_add_addr+0x411/0x2000 [ 2027.787102][ T254] inet6_addr_add+0x30e/0xa40 [ 2027.787102][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2027.787102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2027.787102][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.787102][ T254] netlink_unicast+0x449/0x710 [ 2027.787102][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.787102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.787102][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.787102][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.787102][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.787102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2027.787102][ T254] [ 2027.790657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.790657][ T254] netdev_get_by_index+0x5e/0x80 [ 2027.790657][ T254] fib6_nh_init+0x3d8/0x1580 [ 2027.790657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2027.790657][ T254] ip6_route_add+0x1c/0x140 [ 2027.790657][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2027.790657][ T254] addrconf_add_dev+0xe2/0x170 [ 2027.790657][ T254] inet6_addr_add+0x12f/0xa40 [ 2027.790657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2027.790657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2027.790657][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.790657][ T254] netlink_unicast+0x449/0x710 [ 2027.790657][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.790657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.790657][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.790657][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.790657][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.790657][ T254] [ 2027.794245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.794245][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2027.794245][ T254] ipv6_find_idev+0x102/0x170 [ 2027.794245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2027.794245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2027.794245][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.794245][ T254] netlink_unicast+0x449/0x710 [ 2027.794245][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.794245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.794245][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.794245][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.794245][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.794245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2027.794245][ T254] [ 2027.796983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2027.796983][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2027.796983][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2027.796983][ T254] ipv6_find_idev+0x102/0x170 [ 2027.796983][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2027.796983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2027.796983][ T254] netlink_rcv_skb+0x130/0x360 [ 2027.796983][ T254] netlink_unicast+0x449/0x710 [ 2027.796983][ T254] netlink_sendmsg+0x723/0xbe0 [ 2027.796983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2027.796983][ T254] ___sys_sendmsg+0xee/0x170 [ 2027.796983][ T254] __sys_sendmsg+0xcd/0x170 [ 2027.796983][ T254] do_syscall_64+0xc6/0x1e0 [ 2027.796983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2027.796983][ T254] [ 2038.039922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2038.041144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.041144][ T254] dst_init+0x84/0x4a0 [ 2038.041144][ T254] dst_alloc+0x97/0x150 [ 2038.041144][ T254] ip6_dst_alloc+0x23/0x90 [ 2038.041144][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2038.041144][ T254] ip6_pol_route+0x56f/0x840 [ 2038.041144][ T254] fib6_rule_lookup+0x334/0x630 [ 2038.041144][ T254] ip6_route_output_flags+0x259/0x480 [ 2038.041144][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2038.041144][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2038.041144][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.041144][ T254] netlink_unicast+0x449/0x710 [ 2038.041144][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.041144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.041144][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.041144][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.041144][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.041144][ T254] [ 2038.043355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.043355][ T254] netdev_get_by_index+0x5e/0x80 [ 2038.043355][ T254] fib6_nh_init+0x3d8/0x1580 [ 2038.043355][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2038.043355][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2038.043355][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2038.043355][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2038.043355][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2038.043355][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2038.043355][ T254] addrconf_dad_begin+0x310/0x670 [ 2038.043355][ T254] addrconf_dad_work+0x10b/0xab0 [ 2038.043355][ T254] process_one_work+0x84d/0x18a0 [ 2038.043355][ T254] worker_thread+0x587/0xd30 [ 2038.043355][ T254] kthread+0x28a/0x350 [ 2038.043355][ T254] ret_from_fork+0x31/0x70 [ 2038.043355][ T254] ret_from_fork_asm+0x1a/0x30 [ 2038.043355][ T254] [ 2038.045449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.045449][ T254] netdev_get_by_index+0x5e/0x80 [ 2038.045449][ T254] fib6_nh_init+0x3d8/0x1580 [ 2038.045449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2038.045449][ T254] ip6_route_add+0x1c/0x140 [ 2038.045449][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2038.045449][ T254] inet6_addr_add+0x4f8/0xa40 [ 2038.045449][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.045449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.045449][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.045449][ T254] netlink_unicast+0x449/0x710 [ 2038.045449][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.045449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.045449][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.045449][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.045449][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.045449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.045449][ T254] [ 2038.048084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.048084][ T254] netdev_get_by_index+0x5e/0x80 [ 2038.048084][ T254] fib6_nh_init+0x3d8/0x1580 [ 2038.048084][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2038.048084][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2038.048084][ T254] ipv6_add_addr+0x411/0x2000 [ 2038.048084][ T254] inet6_addr_add+0x30e/0xa40 [ 2038.048084][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.048084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.048084][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.048084][ T254] netlink_unicast+0x449/0x710 [ 2038.048084][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.048084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.048084][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.048084][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.048084][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.048084][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.048084][ T254] [ 2038.050332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.050332][ T254] netdev_get_by_index+0x5e/0x80 [ 2038.050332][ T254] fib6_nh_init+0x3d8/0x1580 [ 2038.050332][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2038.050332][ T254] ip6_route_add+0x1c/0x140 [ 2038.050332][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2038.050332][ T254] addrconf_add_dev+0xe2/0x170 [ 2038.050332][ T254] inet6_addr_add+0x12f/0xa40 [ 2038.050332][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2038.050332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.050332][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.050332][ T254] netlink_unicast+0x449/0x710 [ 2038.050332][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.050332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.050332][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.050332][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.050332][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.050332][ T254] [ 2038.052514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.052514][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2038.052514][ T254] ipv6_find_idev+0x102/0x170 [ 2038.052514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.052514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.052514][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.052514][ T254] netlink_unicast+0x449/0x710 [ 2038.052514][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.052514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.052514][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.052514][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.052514][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.052514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.052514][ T254] [ 2038.054259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2038.054259][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2038.054259][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2038.054259][ T254] ipv6_find_idev+0x102/0x170 [ 2038.054259][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2038.054259][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2038.054259][ T254] netlink_rcv_skb+0x130/0x360 [ 2038.054259][ T254] netlink_unicast+0x449/0x710 [ 2038.054259][ T254] netlink_sendmsg+0x723/0xbe0 [ 2038.054259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2038.054259][ T254] ___sys_sendmsg+0xee/0x170 [ 2038.054259][ T254] __sys_sendmsg+0xcd/0x170 [ 2038.054259][ T254] do_syscall_64+0xc6/0x1e0 [ 2038.054259][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2038.054259][ T254] [ 2048.295908][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2048.296500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.296500][ T254] dst_init+0x84/0x4a0 [ 2048.296500][ T254] dst_alloc+0x97/0x150 [ 2048.296500][ T254] ip6_dst_alloc+0x23/0x90 [ 2048.296500][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2048.296500][ T254] ip6_pol_route+0x56f/0x840 [ 2048.296500][ T254] fib6_rule_lookup+0x334/0x630 [ 2048.296500][ T254] ip6_route_output_flags+0x259/0x480 [ 2048.296500][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2048.296500][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2048.296500][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.296500][ T254] netlink_unicast+0x449/0x710 [ 2048.296500][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.296500][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.296500][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.296500][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.296500][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.296500][ T254] [ 2048.298747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.298747][ T254] netdev_get_by_index+0x5e/0x80 [ 2048.298747][ T254] fib6_nh_init+0x3d8/0x1580 [ 2048.298747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2048.298747][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2048.298747][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2048.298747][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2048.298747][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2048.298747][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2048.298747][ T254] addrconf_dad_begin+0x310/0x670 [ 2048.298747][ T254] addrconf_dad_work+0x10b/0xab0 [ 2048.298747][ T254] process_one_work+0x84d/0x18a0 [ 2048.298747][ T254] worker_thread+0x587/0xd30 [ 2048.298747][ T254] kthread+0x28a/0x350 [ 2048.298747][ T254] ret_from_fork+0x31/0x70 [ 2048.298747][ T254] ret_from_fork_asm+0x1a/0x30 [ 2048.298747][ T254] [ 2048.300871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.300871][ T254] netdev_get_by_index+0x5e/0x80 [ 2048.300871][ T254] fib6_nh_init+0x3d8/0x1580 [ 2048.300871][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2048.300871][ T254] ip6_route_add+0x1c/0x140 [ 2048.300871][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2048.300871][ T254] inet6_addr_add+0x4f8/0xa40 [ 2048.300871][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.300871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.300871][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.300871][ T254] netlink_unicast+0x449/0x710 [ 2048.300871][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.300871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.300871][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.300871][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.300871][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.300871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.300871][ T254] [ 2048.303116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.303116][ T254] netdev_get_by_index+0x5e/0x80 [ 2048.303116][ T254] fib6_nh_init+0x3d8/0x1580 [ 2048.303116][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2048.303116][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2048.303116][ T254] ipv6_add_addr+0x411/0x2000 [ 2048.303116][ T254] inet6_addr_add+0x30e/0xa40 [ 2048.303116][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.303116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.303116][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.303116][ T254] netlink_unicast+0x449/0x710 [ 2048.303116][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.303116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.303116][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.303116][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.303116][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.303116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.303116][ T254] [ 2048.305484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.305484][ T254] netdev_get_by_index+0x5e/0x80 [ 2048.305484][ T254] fib6_nh_init+0x3d8/0x1580 [ 2048.305484][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2048.305484][ T254] ip6_route_add+0x1c/0x140 [ 2048.305484][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2048.305484][ T254] addrconf_add_dev+0xe2/0x170 [ 2048.305484][ T254] inet6_addr_add+0x12f/0xa40 [ 2048.305484][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2048.305484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.305484][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.305484][ T254] netlink_unicast+0x449/0x710 [ 2048.305484][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.305484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.305484][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.305484][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.305484][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.305484][ T254] [ 2048.307705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.307705][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2048.307705][ T254] ipv6_find_idev+0x102/0x170 [ 2048.307705][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.307705][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.307705][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.307705][ T254] netlink_unicast+0x449/0x710 [ 2048.307705][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.307705][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.307705][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.307705][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.307705][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.307705][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.307705][ T254] [ 2048.309438][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2048.309438][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2048.309438][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2048.309438][ T254] ipv6_find_idev+0x102/0x170 [ 2048.309438][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2048.309438][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2048.309438][ T254] netlink_rcv_skb+0x130/0x360 [ 2048.309438][ T254] netlink_unicast+0x449/0x710 [ 2048.309438][ T254] netlink_sendmsg+0x723/0xbe0 [ 2048.309438][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2048.309438][ T254] ___sys_sendmsg+0xee/0x170 [ 2048.309438][ T254] __sys_sendmsg+0xcd/0x170 [ 2048.309438][ T254] do_syscall_64+0xc6/0x1e0 [ 2048.309438][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2048.309438][ T254] [ 2058.551910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2058.552501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.552501][ T254] dst_init+0x84/0x4a0 [ 2058.552501][ T254] dst_alloc+0x97/0x150 [ 2058.552501][ T254] ip6_dst_alloc+0x23/0x90 [ 2058.552501][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2058.552501][ T254] ip6_pol_route+0x56f/0x840 [ 2058.552501][ T254] fib6_rule_lookup+0x334/0x630 [ 2058.552501][ T254] ip6_route_output_flags+0x259/0x480 [ 2058.552501][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2058.552501][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2058.552501][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.552501][ T254] netlink_unicast+0x449/0x710 [ 2058.552501][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.552501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.552501][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.552501][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.552501][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.552501][ T254] [ 2058.554670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.554670][ T254] netdev_get_by_index+0x5e/0x80 [ 2058.554670][ T254] fib6_nh_init+0x3d8/0x1580 [ 2058.554670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2058.554670][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2058.554670][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2058.554670][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2058.554670][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2058.554670][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2058.554670][ T254] addrconf_dad_begin+0x310/0x670 [ 2058.554670][ T254] addrconf_dad_work+0x10b/0xab0 [ 2058.554670][ T254] process_one_work+0x84d/0x18a0 [ 2058.554670][ T254] worker_thread+0x587/0xd30 [ 2058.554670][ T254] kthread+0x28a/0x350 [ 2058.554670][ T254] ret_from_fork+0x31/0x70 [ 2058.554670][ T254] ret_from_fork_asm+0x1a/0x30 [ 2058.554670][ T254] [ 2058.556839][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.556839][ T254] netdev_get_by_index+0x5e/0x80 [ 2058.556839][ T254] fib6_nh_init+0x3d8/0x1580 [ 2058.556839][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2058.556839][ T254] ip6_route_add+0x1c/0x140 [ 2058.556839][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2058.556839][ T254] inet6_addr_add+0x4f8/0xa40 [ 2058.556839][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.556839][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.556839][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.556839][ T254] netlink_unicast+0x449/0x710 [ 2058.556839][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.556839][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.556839][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.556839][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.556839][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.556839][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.556839][ T254] [ 2058.559119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.559119][ T254] netdev_get_by_index+0x5e/0x80 [ 2058.559119][ T254] fib6_nh_init+0x3d8/0x1580 [ 2058.559119][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2058.559119][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2058.559119][ T254] ipv6_add_addr+0x411/0x2000 [ 2058.559119][ T254] inet6_addr_add+0x30e/0xa40 [ 2058.559119][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.559119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.559119][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.559119][ T254] netlink_unicast+0x449/0x710 [ 2058.559119][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.559119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.559119][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.559119][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.559119][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.559119][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.559119][ T254] [ 2058.561308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.561308][ T254] netdev_get_by_index+0x5e/0x80 [ 2058.561308][ T254] fib6_nh_init+0x3d8/0x1580 [ 2058.561308][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2058.561308][ T254] ip6_route_add+0x1c/0x140 [ 2058.561308][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2058.561308][ T254] addrconf_add_dev+0xe2/0x170 [ 2058.561308][ T254] inet6_addr_add+0x12f/0xa40 [ 2058.561308][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2058.561308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.561308][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.561308][ T254] netlink_unicast+0x449/0x710 [ 2058.561308][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.561308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.561308][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.561308][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.561308][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.561308][ T254] [ 2058.563541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.563541][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2058.563541][ T254] ipv6_find_idev+0x102/0x170 [ 2058.563541][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.563541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.563541][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.563541][ T254] netlink_unicast+0x449/0x710 [ 2058.563541][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.563541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.563541][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.563541][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.563541][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.563541][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.563541][ T254] [ 2058.565275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2058.565275][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2058.565275][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2058.565275][ T254] ipv6_find_idev+0x102/0x170 [ 2058.565275][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2058.565275][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2058.565275][ T254] netlink_rcv_skb+0x130/0x360 [ 2058.565275][ T254] netlink_unicast+0x449/0x710 [ 2058.565275][ T254] netlink_sendmsg+0x723/0xbe0 [ 2058.565275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2058.565275][ T254] ___sys_sendmsg+0xee/0x170 [ 2058.565275][ T254] __sys_sendmsg+0xcd/0x170 [ 2058.565275][ T254] do_syscall_64+0xc6/0x1e0 [ 2058.565275][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2058.565275][ T254] [ 2068.807913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2068.808433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.808433][ T254] dst_init+0x84/0x4a0 [ 2068.808433][ T254] dst_alloc+0x97/0x150 [ 2068.808433][ T254] ip6_dst_alloc+0x23/0x90 [ 2068.808433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2068.808433][ T254] ip6_pol_route+0x56f/0x840 [ 2068.808433][ T254] fib6_rule_lookup+0x334/0x630 [ 2068.808433][ T254] ip6_route_output_flags+0x259/0x480 [ 2068.808433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2068.808433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2068.808433][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.808433][ T254] netlink_unicast+0x449/0x710 [ 2068.808433][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.808433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.808433][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.808433][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.808433][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.808433][ T254] [ 2068.810643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.810643][ T254] netdev_get_by_index+0x5e/0x80 [ 2068.810643][ T254] fib6_nh_init+0x3d8/0x1580 [ 2068.810643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2068.810643][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2068.810643][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2068.810643][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2068.810643][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2068.810643][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2068.810643][ T254] addrconf_dad_begin+0x310/0x670 [ 2068.810643][ T254] addrconf_dad_work+0x10b/0xab0 [ 2068.810643][ T254] process_one_work+0x84d/0x18a0 [ 2068.810643][ T254] worker_thread+0x587/0xd30 [ 2068.810643][ T254] kthread+0x28a/0x350 [ 2068.810643][ T254] ret_from_fork+0x31/0x70 [ 2068.810643][ T254] ret_from_fork_asm+0x1a/0x30 [ 2068.810643][ T254] [ 2068.812767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.812767][ T254] netdev_get_by_index+0x5e/0x80 [ 2068.812767][ T254] fib6_nh_init+0x3d8/0x1580 [ 2068.812767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2068.812767][ T254] ip6_route_add+0x1c/0x140 [ 2068.812767][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2068.812767][ T254] inet6_addr_add+0x4f8/0xa40 [ 2068.812767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.812767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.812767][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.812767][ T254] netlink_unicast+0x449/0x710 [ 2068.812767][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.812767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.812767][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.812767][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.812767][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.812767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.812767][ T254] [ 2068.814992][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.814992][ T254] netdev_get_by_index+0x5e/0x80 [ 2068.814992][ T254] fib6_nh_init+0x3d8/0x1580 [ 2068.814992][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2068.814992][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2068.814992][ T254] ipv6_add_addr+0x411/0x2000 [ 2068.814992][ T254] inet6_addr_add+0x30e/0xa40 [ 2068.814992][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.814992][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.814992][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.814992][ T254] netlink_unicast+0x449/0x710 [ 2068.814992][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.814992][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.814992][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.814992][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.814992][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.814992][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.814992][ T254] [ 2068.817209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.817209][ T254] netdev_get_by_index+0x5e/0x80 [ 2068.817209][ T254] fib6_nh_init+0x3d8/0x1580 [ 2068.817209][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2068.817209][ T254] ip6_route_add+0x1c/0x140 [ 2068.817209][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2068.817209][ T254] addrconf_add_dev+0xe2/0x170 [ 2068.817209][ T254] inet6_addr_add+0x12f/0xa40 [ 2068.817209][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2068.817209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.817209][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.817209][ T254] netlink_unicast+0x449/0x710 [ 2068.817209][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.817209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.817209][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.817209][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.817209][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.817209][ T254] [ 2068.819392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.819392][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2068.819392][ T254] ipv6_find_idev+0x102/0x170 [ 2068.819392][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.819392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.819392][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.819392][ T254] netlink_unicast+0x449/0x710 [ 2068.819392][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.819392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.819392][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.819392][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.819392][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.819392][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.819392][ T254] [ 2068.821117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2068.821117][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2068.821117][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2068.821117][ T254] ipv6_find_idev+0x102/0x170 [ 2068.821117][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2068.821117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2068.821117][ T254] netlink_rcv_skb+0x130/0x360 [ 2068.821117][ T254] netlink_unicast+0x449/0x710 [ 2068.821117][ T254] netlink_sendmsg+0x723/0xbe0 [ 2068.821117][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2068.821117][ T254] ___sys_sendmsg+0xee/0x170 [ 2068.821117][ T254] __sys_sendmsg+0xcd/0x170 [ 2068.821117][ T254] do_syscall_64+0xc6/0x1e0 [ 2068.821117][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2068.821117][ T254] [ 2079.063843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2079.064356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.064356][ T254] dst_init+0x84/0x4a0 [ 2079.064356][ T254] dst_alloc+0x97/0x150 [ 2079.064356][ T254] ip6_dst_alloc+0x23/0x90 [ 2079.064356][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2079.064356][ T254] ip6_pol_route+0x56f/0x840 [ 2079.064356][ T254] fib6_rule_lookup+0x334/0x630 [ 2079.064356][ T254] ip6_route_output_flags+0x259/0x480 [ 2079.064356][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2079.064356][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2079.064356][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.064356][ T254] netlink_unicast+0x449/0x710 [ 2079.064356][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.064356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.064356][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.064356][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.064356][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.064356][ T254] [ 2079.066550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.066550][ T254] netdev_get_by_index+0x5e/0x80 [ 2079.066550][ T254] fib6_nh_init+0x3d8/0x1580 [ 2079.066550][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2079.066550][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2079.066550][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2079.066550][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2079.066550][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2079.066550][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2079.066550][ T254] addrconf_dad_begin+0x310/0x670 [ 2079.066550][ T254] addrconf_dad_work+0x10b/0xab0 [ 2079.066550][ T254] process_one_work+0x84d/0x18a0 [ 2079.066550][ T254] worker_thread+0x587/0xd30 [ 2079.066550][ T254] kthread+0x28a/0x350 [ 2079.066550][ T254] ret_from_fork+0x31/0x70 [ 2079.066550][ T254] ret_from_fork_asm+0x1a/0x30 [ 2079.066550][ T254] [ 2079.068706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.068706][ T254] netdev_get_by_index+0x5e/0x80 [ 2079.068706][ T254] fib6_nh_init+0x3d8/0x1580 [ 2079.068706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2079.068706][ T254] ip6_route_add+0x1c/0x140 [ 2079.068706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2079.068706][ T254] inet6_addr_add+0x4f8/0xa40 [ 2079.068706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.068706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.068706][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.068706][ T254] netlink_unicast+0x449/0x710 [ 2079.068706][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.068706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.068706][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.068706][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.068706][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.068706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.068706][ T254] [ 2079.070952][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.070952][ T254] netdev_get_by_index+0x5e/0x80 [ 2079.070952][ T254] fib6_nh_init+0x3d8/0x1580 [ 2079.070952][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2079.070952][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2079.070952][ T254] ipv6_add_addr+0x411/0x2000 [ 2079.070952][ T254] inet6_addr_add+0x30e/0xa40 [ 2079.070952][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.070952][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.070952][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.070952][ T254] netlink_unicast+0x449/0x710 [ 2079.070952][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.070952][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.070952][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.070952][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.070952][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.070952][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.070952][ T254] [ 2079.073192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.073192][ T254] netdev_get_by_index+0x5e/0x80 [ 2079.073192][ T254] fib6_nh_init+0x3d8/0x1580 [ 2079.073192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2079.073192][ T254] ip6_route_add+0x1c/0x140 [ 2079.073192][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2079.073192][ T254] addrconf_add_dev+0xe2/0x170 [ 2079.073192][ T254] inet6_addr_add+0x12f/0xa40 [ 2079.073192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2079.073192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.073192][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.073192][ T254] netlink_unicast+0x449/0x710 [ 2079.073192][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.073192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.073192][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.073192][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.073192][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.073192][ T254] [ 2079.075328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.075328][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2079.075328][ T254] ipv6_find_idev+0x102/0x170 [ 2079.075328][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2079.075328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.075328][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.075328][ T254] netlink_unicast+0x449/0x710 [ 2079.075328][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.075328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.075328][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.075328][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.075328][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.075328][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.075328][ T254] [ 2079.077060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2079.077060][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2079.077060][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2079.077060][ T254] ipv6_find_idev+0x102/0x170 [ 2079.077060][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2079.077060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2079.077060][ T254] netlink_rcv_skb+0x130/0x360 [ 2079.077060][ T254] netlink_unicast+0x449/0x710 [ 2079.077060][ T254] netlink_sendmsg+0x723/0xbe0 [ 2079.077060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2079.077060][ T254] ___sys_sendmsg+0xee/0x170 [ 2079.077060][ T254] __sys_sendmsg+0xcd/0x170 [ 2079.077060][ T254] do_syscall_64+0xc6/0x1e0 [ 2079.077060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2079.077060][ T254] [ 2089.319913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2089.321119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.321119][ T254] dst_init+0x84/0x4a0 [ 2089.321119][ T254] dst_alloc+0x97/0x150 [ 2089.321119][ T254] ip6_dst_alloc+0x23/0x90 [ 2089.321119][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2089.321119][ T254] ip6_pol_route+0x56f/0x840 [ 2089.321119][ T254] fib6_rule_lookup+0x334/0x630 [ 2089.321119][ T254] ip6_route_output_flags+0x259/0x480 [ 2089.321119][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2089.321119][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2089.321119][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.321119][ T254] netlink_unicast+0x449/0x710 [ 2089.321119][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.321119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.321119][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.321119][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.321119][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.321119][ T254] [ 2089.323321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.323321][ T254] netdev_get_by_index+0x5e/0x80 [ 2089.323321][ T254] fib6_nh_init+0x3d8/0x1580 [ 2089.323321][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2089.323321][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2089.323321][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2089.323321][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2089.323321][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2089.323321][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2089.323321][ T254] addrconf_dad_begin+0x310/0x670 [ 2089.323321][ T254] addrconf_dad_work+0x10b/0xab0 [ 2089.323321][ T254] process_one_work+0x84d/0x18a0 [ 2089.323321][ T254] worker_thread+0x587/0xd30 [ 2089.323321][ T254] kthread+0x28a/0x350 [ 2089.323321][ T254] ret_from_fork+0x31/0x70 [ 2089.323321][ T254] ret_from_fork_asm+0x1a/0x30 [ 2089.323321][ T254] [ 2089.325509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.325509][ T254] netdev_get_by_index+0x5e/0x80 [ 2089.325509][ T254] fib6_nh_init+0x3d8/0x1580 [ 2089.325509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2089.325509][ T254] ip6_route_add+0x1c/0x140 [ 2089.325509][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2089.325509][ T254] inet6_addr_add+0x4f8/0xa40 [ 2089.325509][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.325509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.325509][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.325509][ T254] netlink_unicast+0x449/0x710 [ 2089.325509][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.325509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.325509][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.325509][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.325509][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.325509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.325509][ T254] [ 2089.327741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.327741][ T254] netdev_get_by_index+0x5e/0x80 [ 2089.327741][ T254] fib6_nh_init+0x3d8/0x1580 [ 2089.327741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2089.327741][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2089.327741][ T254] ipv6_add_addr+0x411/0x2000 [ 2089.327741][ T254] inet6_addr_add+0x30e/0xa40 [ 2089.327741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.327741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.327741][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.327741][ T254] netlink_unicast+0x449/0x710 [ 2089.327741][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.327741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.327741][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.327741][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.327741][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.327741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.327741][ T254] [ 2089.329999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.329999][ T254] netdev_get_by_index+0x5e/0x80 [ 2089.329999][ T254] fib6_nh_init+0x3d8/0x1580 [ 2089.329999][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2089.329999][ T254] ip6_route_add+0x1c/0x140 [ 2089.329999][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2089.329999][ T254] addrconf_add_dev+0xe2/0x170 [ 2089.329999][ T254] inet6_addr_add+0x12f/0xa40 [ 2089.329999][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2089.329999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.329999][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.329999][ T254] netlink_unicast+0x449/0x710 [ 2089.329999][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.329999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.329999][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.329999][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.329999][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.329999][ T254] [ 2089.332215][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.332215][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2089.332215][ T254] ipv6_find_idev+0x102/0x170 [ 2089.332215][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.332215][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.332215][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.332215][ T254] netlink_unicast+0x449/0x710 [ 2089.332215][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.332215][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.332215][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.332215][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.332215][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.332215][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.332215][ T254] [ 2089.333989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2089.333989][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2089.333989][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2089.333989][ T254] ipv6_find_idev+0x102/0x170 [ 2089.333989][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2089.333989][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2089.333989][ T254] netlink_rcv_skb+0x130/0x360 [ 2089.333989][ T254] netlink_unicast+0x449/0x710 [ 2089.333989][ T254] netlink_sendmsg+0x723/0xbe0 [ 2089.333989][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2089.333989][ T254] ___sys_sendmsg+0xee/0x170 [ 2089.333989][ T254] __sys_sendmsg+0xcd/0x170 [ 2089.333989][ T254] do_syscall_64+0xc6/0x1e0 [ 2089.333989][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2089.333989][ T254] [ 2099.351910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2099.353083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.353083][ T254] dst_init+0x84/0x4a0 [ 2099.353083][ T254] dst_alloc+0x97/0x150 [ 2099.353083][ T254] ip6_dst_alloc+0x23/0x90 [ 2099.353083][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2099.353083][ T254] ip6_pol_route+0x56f/0x840 [ 2099.353083][ T254] fib6_rule_lookup+0x334/0x630 [ 2099.353083][ T254] ip6_route_output_flags+0x259/0x480 [ 2099.353083][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2099.353083][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2099.353083][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.353083][ T254] netlink_unicast+0x449/0x710 [ 2099.353083][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.353083][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.353083][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.353083][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.353083][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.353083][ T254] [ 2099.355356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.355356][ T254] netdev_get_by_index+0x5e/0x80 [ 2099.355356][ T254] fib6_nh_init+0x3d8/0x1580 [ 2099.355356][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2099.355356][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2099.355356][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2099.355356][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2099.355356][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2099.355356][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2099.355356][ T254] addrconf_dad_begin+0x310/0x670 [ 2099.355356][ T254] addrconf_dad_work+0x10b/0xab0 [ 2099.355356][ T254] process_one_work+0x84d/0x18a0 [ 2099.355356][ T254] worker_thread+0x587/0xd30 [ 2099.355356][ T254] kthread+0x28a/0x350 [ 2099.355356][ T254] ret_from_fork+0x31/0x70 [ 2099.355356][ T254] ret_from_fork_asm+0x1a/0x30 [ 2099.355356][ T254] [ 2099.357496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.357496][ T254] netdev_get_by_index+0x5e/0x80 [ 2099.357496][ T254] fib6_nh_init+0x3d8/0x1580 [ 2099.357496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2099.357496][ T254] ip6_route_add+0x1c/0x140 [ 2099.357496][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2099.357496][ T254] inet6_addr_add+0x4f8/0xa40 [ 2099.357496][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.357496][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.357496][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.357496][ T254] netlink_unicast+0x449/0x710 [ 2099.357496][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.357496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.357496][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.357496][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.357496][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.357496][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.357496][ T254] [ 2099.359746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.359746][ T254] netdev_get_by_index+0x5e/0x80 [ 2099.359746][ T254] fib6_nh_init+0x3d8/0x1580 [ 2099.359746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2099.359746][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2099.359746][ T254] ipv6_add_addr+0x411/0x2000 [ 2099.359746][ T254] inet6_addr_add+0x30e/0xa40 [ 2099.359746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.359746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.359746][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.359746][ T254] netlink_unicast+0x449/0x710 [ 2099.359746][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.359746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.359746][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.359746][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.359746][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.359746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.359746][ T254] [ 2099.362028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.362028][ T254] netdev_get_by_index+0x5e/0x80 [ 2099.362028][ T254] fib6_nh_init+0x3d8/0x1580 [ 2099.362028][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2099.362028][ T254] ip6_route_add+0x1c/0x140 [ 2099.362028][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2099.362028][ T254] addrconf_add_dev+0xe2/0x170 [ 2099.362028][ T254] inet6_addr_add+0x12f/0xa40 [ 2099.362028][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2099.362028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.362028][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.362028][ T254] netlink_unicast+0x449/0x710 [ 2099.362028][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.362028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.362028][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.362028][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.362028][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.362028][ T254] [ 2099.364177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.364177][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2099.364177][ T254] ipv6_find_idev+0x102/0x170 [ 2099.364177][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.364177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.364177][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.364177][ T254] netlink_unicast+0x449/0x710 [ 2099.364177][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.364177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.364177][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.364177][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.364177][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.364177][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.364177][ T254] [ 2099.365916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2099.365916][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2099.365916][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2099.365916][ T254] ipv6_find_idev+0x102/0x170 [ 2099.365916][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2099.365916][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2099.365916][ T254] netlink_rcv_skb+0x130/0x360 [ 2099.365916][ T254] netlink_unicast+0x449/0x710 [ 2099.365916][ T254] netlink_sendmsg+0x723/0xbe0 [ 2099.365916][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2099.365916][ T254] ___sys_sendmsg+0xee/0x170 [ 2099.365916][ T254] __sys_sendmsg+0xcd/0x170 [ 2099.365916][ T254] do_syscall_64+0xc6/0x1e0 [ 2099.365916][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2099.365916][ T254] [ 2109.495873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2109.496347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.496347][ T254] dst_init+0x84/0x4a0 [ 2109.496347][ T254] dst_alloc+0x97/0x150 [ 2109.496347][ T254] ip6_dst_alloc+0x23/0x90 [ 2109.496347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2109.496347][ T254] ip6_pol_route+0x56f/0x840 [ 2109.496347][ T254] fib6_rule_lookup+0x334/0x630 [ 2109.496347][ T254] ip6_route_output_flags+0x259/0x480 [ 2109.496347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2109.496347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2109.496347][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.496347][ T254] netlink_unicast+0x449/0x710 [ 2109.496347][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.496347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.496347][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.496347][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.496347][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.496347][ T254] [ 2109.498515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.498515][ T254] netdev_get_by_index+0x5e/0x80 [ 2109.498515][ T254] fib6_nh_init+0x3d8/0x1580 [ 2109.498515][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2109.498515][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2109.498515][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2109.498515][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2109.498515][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2109.498515][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2109.498515][ T254] addrconf_dad_begin+0x310/0x670 [ 2109.498515][ T254] addrconf_dad_work+0x10b/0xab0 [ 2109.498515][ T254] process_one_work+0x84d/0x18a0 [ 2109.498515][ T254] worker_thread+0x587/0xd30 [ 2109.498515][ T254] kthread+0x28a/0x350 [ 2109.498515][ T254] ret_from_fork+0x31/0x70 [ 2109.498515][ T254] ret_from_fork_asm+0x1a/0x30 [ 2109.498515][ T254] [ 2109.500613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.500613][ T254] netdev_get_by_index+0x5e/0x80 [ 2109.500613][ T254] fib6_nh_init+0x3d8/0x1580 [ 2109.500613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2109.500613][ T254] ip6_route_add+0x1c/0x140 [ 2109.500613][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2109.500613][ T254] inet6_addr_add+0x4f8/0xa40 [ 2109.500613][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.500613][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.500613][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.500613][ T254] netlink_unicast+0x449/0x710 [ 2109.500613][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.500613][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.500613][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.500613][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.500613][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.500613][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.500613][ T254] [ 2109.502855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.502855][ T254] netdev_get_by_index+0x5e/0x80 [ 2109.502855][ T254] fib6_nh_init+0x3d8/0x1580 [ 2109.502855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2109.502855][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2109.502855][ T254] ipv6_add_addr+0x411/0x2000 [ 2109.502855][ T254] inet6_addr_add+0x30e/0xa40 [ 2109.502855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.502855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.502855][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.502855][ T254] netlink_unicast+0x449/0x710 [ 2109.502855][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.502855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.502855][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.502855][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.502855][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.502855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.502855][ T254] [ 2109.505566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.505566][ T254] netdev_get_by_index+0x5e/0x80 [ 2109.505566][ T254] fib6_nh_init+0x3d8/0x1580 [ 2109.505566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2109.505566][ T254] ip6_route_add+0x1c/0x140 [ 2109.505566][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2109.505566][ T254] addrconf_add_dev+0xe2/0x170 [ 2109.505566][ T254] inet6_addr_add+0x12f/0xa40 [ 2109.505566][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2109.505566][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.505566][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.505566][ T254] netlink_unicast+0x449/0x710 [ 2109.505566][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.505566][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.505566][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.505566][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.505566][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.505566][ T254] [ 2109.508146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.508146][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2109.508146][ T254] ipv6_find_idev+0x102/0x170 [ 2109.508146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.508146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.508146][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.508146][ T254] netlink_unicast+0x449/0x710 [ 2109.508146][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.508146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.508146][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.508146][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.508146][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.508146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.508146][ T254] [ 2109.509845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2109.509845][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2109.509845][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2109.509845][ T254] ipv6_find_idev+0x102/0x170 [ 2109.509845][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2109.509845][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2109.509845][ T254] netlink_rcv_skb+0x130/0x360 [ 2109.509845][ T254] netlink_unicast+0x449/0x710 [ 2109.509845][ T254] netlink_sendmsg+0x723/0xbe0 [ 2109.509845][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2109.509845][ T254] ___sys_sendmsg+0xee/0x170 [ 2109.509845][ T254] __sys_sendmsg+0xcd/0x170 [ 2109.509845][ T254] do_syscall_64+0xc6/0x1e0 [ 2109.509845][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2109.509845][ T254] [ 2119.679939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2119.680554][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.680554][ T254] dst_init+0x84/0x4a0 [ 2119.680554][ T254] dst_alloc+0x97/0x150 [ 2119.680554][ T254] ip6_dst_alloc+0x23/0x90 [ 2119.680554][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2119.680554][ T254] ip6_pol_route+0x56f/0x840 [ 2119.680554][ T254] fib6_rule_lookup+0x334/0x630 [ 2119.680554][ T254] ip6_route_output_flags+0x259/0x480 [ 2119.680554][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2119.680554][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2119.680554][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.680554][ T254] netlink_unicast+0x449/0x710 [ 2119.680554][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.680554][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.680554][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.680554][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.680554][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.680554][ T254] [ 2119.683113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.683113][ T254] netdev_get_by_index+0x5e/0x80 [ 2119.683113][ T254] fib6_nh_init+0x3d8/0x1580 [ 2119.683113][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2119.683113][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2119.683113][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2119.683113][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2119.683113][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2119.683113][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2119.683113][ T254] addrconf_dad_begin+0x310/0x670 [ 2119.683113][ T254] addrconf_dad_work+0x10b/0xab0 [ 2119.683113][ T254] process_one_work+0x84d/0x18a0 [ 2119.683113][ T254] worker_thread+0x587/0xd30 [ 2119.683113][ T254] kthread+0x28a/0x350 [ 2119.683113][ T254] ret_from_fork+0x31/0x70 [ 2119.683113][ T254] ret_from_fork_asm+0x1a/0x30 [ 2119.683113][ T254] [ 2119.685295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.685295][ T254] netdev_get_by_index+0x5e/0x80 [ 2119.685295][ T254] fib6_nh_init+0x3d8/0x1580 [ 2119.685295][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2119.685295][ T254] ip6_route_add+0x1c/0x140 [ 2119.685295][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2119.685295][ T254] inet6_addr_add+0x4f8/0xa40 [ 2119.685295][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.685295][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.685295][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.685295][ T254] netlink_unicast+0x449/0x710 [ 2119.685295][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.685295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.685295][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.685295][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.685295][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.685295][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.685295][ T254] [ 2119.687523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.687523][ T254] netdev_get_by_index+0x5e/0x80 [ 2119.687523][ T254] fib6_nh_init+0x3d8/0x1580 [ 2119.687523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2119.687523][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2119.687523][ T254] ipv6_add_addr+0x411/0x2000 [ 2119.687523][ T254] inet6_addr_add+0x30e/0xa40 [ 2119.687523][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.687523][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.687523][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.687523][ T254] netlink_unicast+0x449/0x710 [ 2119.687523][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.687523][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.687523][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.687523][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.687523][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.687523][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.687523][ T254] [ 2119.689791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.689791][ T254] netdev_get_by_index+0x5e/0x80 [ 2119.689791][ T254] fib6_nh_init+0x3d8/0x1580 [ 2119.689791][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2119.689791][ T254] ip6_route_add+0x1c/0x140 [ 2119.689791][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2119.689791][ T254] addrconf_add_dev+0xe2/0x170 [ 2119.689791][ T254] inet6_addr_add+0x12f/0xa40 [ 2119.689791][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2119.689791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.689791][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.689791][ T254] netlink_unicast+0x449/0x710 [ 2119.689791][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.689791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.689791][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.689791][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.689791][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.689791][ T254] [ 2119.691960][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.691960][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2119.691960][ T254] ipv6_find_idev+0x102/0x170 [ 2119.691960][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.691960][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.691960][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.691960][ T254] netlink_unicast+0x449/0x710 [ 2119.691960][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.691960][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.691960][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.691960][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.691960][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.691960][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.691960][ T254] [ 2119.693700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2119.693700][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2119.693700][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2119.693700][ T254] ipv6_find_idev+0x102/0x170 [ 2119.693700][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2119.693700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2119.693700][ T254] netlink_rcv_skb+0x130/0x360 [ 2119.693700][ T254] netlink_unicast+0x449/0x710 [ 2119.693700][ T254] netlink_sendmsg+0x723/0xbe0 [ 2119.693700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2119.693700][ T254] ___sys_sendmsg+0xee/0x170 [ 2119.693700][ T254] __sys_sendmsg+0xcd/0x170 [ 2119.693700][ T254] do_syscall_64+0xc6/0x1e0 [ 2119.693700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2119.693700][ T254] [ 2129.839970][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2129.840543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.840543][ T254] dst_init+0x84/0x4a0 [ 2129.840543][ T254] dst_alloc+0x97/0x150 [ 2129.840543][ T254] ip6_dst_alloc+0x23/0x90 [ 2129.840543][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2129.840543][ T254] ip6_pol_route+0x56f/0x840 [ 2129.840543][ T254] fib6_rule_lookup+0x334/0x630 [ 2129.840543][ T254] ip6_route_output_flags+0x259/0x480 [ 2129.840543][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2129.840543][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2129.840543][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.840543][ T254] netlink_unicast+0x449/0x710 [ 2129.840543][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.840543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.840543][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.840543][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.840543][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.840543][ T254] [ 2129.842718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.842718][ T254] netdev_get_by_index+0x5e/0x80 [ 2129.842718][ T254] fib6_nh_init+0x3d8/0x1580 [ 2129.842718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2129.842718][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2129.842718][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2129.842718][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2129.842718][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2129.842718][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2129.842718][ T254] addrconf_dad_begin+0x310/0x670 [ 2129.842718][ T254] addrconf_dad_work+0x10b/0xab0 [ 2129.842718][ T254] process_one_work+0x84d/0x18a0 [ 2129.842718][ T254] worker_thread+0x587/0xd30 [ 2129.842718][ T254] kthread+0x28a/0x350 [ 2129.842718][ T254] ret_from_fork+0x31/0x70 [ 2129.842718][ T254] ret_from_fork_asm+0x1a/0x30 [ 2129.842718][ T254] [ 2129.844870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.844870][ T254] netdev_get_by_index+0x5e/0x80 [ 2129.844870][ T254] fib6_nh_init+0x3d8/0x1580 [ 2129.844870][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2129.844870][ T254] ip6_route_add+0x1c/0x140 [ 2129.844870][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2129.844870][ T254] inet6_addr_add+0x4f8/0xa40 [ 2129.844870][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.844870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.844870][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.844870][ T254] netlink_unicast+0x449/0x710 [ 2129.844870][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.844870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.844870][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.844870][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.844870][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.844870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.844870][ T254] [ 2129.847112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.847112][ T254] netdev_get_by_index+0x5e/0x80 [ 2129.847112][ T254] fib6_nh_init+0x3d8/0x1580 [ 2129.847112][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2129.847112][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2129.847112][ T254] ipv6_add_addr+0x411/0x2000 [ 2129.847112][ T254] inet6_addr_add+0x30e/0xa40 [ 2129.847112][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.847112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.847112][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.847112][ T254] netlink_unicast+0x449/0x710 [ 2129.847112][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.847112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.847112][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.847112][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.847112][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.847112][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.847112][ T254] [ 2129.849334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.849334][ T254] netdev_get_by_index+0x5e/0x80 [ 2129.849334][ T254] fib6_nh_init+0x3d8/0x1580 [ 2129.849334][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2129.849334][ T254] ip6_route_add+0x1c/0x140 [ 2129.849334][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2129.849334][ T254] addrconf_add_dev+0xe2/0x170 [ 2129.849334][ T254] inet6_addr_add+0x12f/0xa40 [ 2129.849334][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2129.849334][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.849334][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.849334][ T254] netlink_unicast+0x449/0x710 [ 2129.849334][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.849334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.849334][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.849334][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.849334][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.849334][ T254] [ 2129.851546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.851546][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2129.851546][ T254] ipv6_find_idev+0x102/0x170 [ 2129.851546][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.851546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.851546][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.851546][ T254] netlink_unicast+0x449/0x710 [ 2129.851546][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.851546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.851546][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.851546][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.851546][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.851546][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.851546][ T254] [ 2129.853687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2129.853687][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2129.853687][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2129.853687][ T254] ipv6_find_idev+0x102/0x170 [ 2129.853687][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2129.853687][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2129.853687][ T254] netlink_rcv_skb+0x130/0x360 [ 2129.853687][ T254] netlink_unicast+0x449/0x710 [ 2129.853687][ T254] netlink_sendmsg+0x723/0xbe0 [ 2129.853687][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2129.853687][ T254] ___sys_sendmsg+0xee/0x170 [ 2129.853687][ T254] __sys_sendmsg+0xcd/0x170 [ 2129.853687][ T254] do_syscall_64+0xc6/0x1e0 [ 2129.853687][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2129.853687][ T254] [ 2140.031868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2140.032415][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.032415][ T254] dst_init+0x84/0x4a0 [ 2140.032415][ T254] dst_alloc+0x97/0x150 [ 2140.032415][ T254] ip6_dst_alloc+0x23/0x90 [ 2140.032415][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2140.032415][ T254] ip6_pol_route+0x56f/0x840 [ 2140.032415][ T254] fib6_rule_lookup+0x334/0x630 [ 2140.032415][ T254] ip6_route_output_flags+0x259/0x480 [ 2140.032415][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2140.032415][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2140.032415][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.032415][ T254] netlink_unicast+0x449/0x710 [ 2140.032415][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.032415][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.032415][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.032415][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.032415][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.032415][ T254] [ 2140.034577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.034577][ T254] netdev_get_by_index+0x5e/0x80 [ 2140.034577][ T254] fib6_nh_init+0x3d8/0x1580 [ 2140.034577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2140.034577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2140.034577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2140.034577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2140.034577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2140.034577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2140.034577][ T254] addrconf_dad_begin+0x310/0x670 [ 2140.034577][ T254] addrconf_dad_work+0x10b/0xab0 [ 2140.034577][ T254] process_one_work+0x84d/0x18a0 [ 2140.034577][ T254] worker_thread+0x587/0xd30 [ 2140.034577][ T254] kthread+0x28a/0x350 [ 2140.034577][ T254] ret_from_fork+0x31/0x70 [ 2140.034577][ T254] ret_from_fork_asm+0x1a/0x30 [ 2140.034577][ T254] [ 2140.036679][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.036679][ T254] netdev_get_by_index+0x5e/0x80 [ 2140.036679][ T254] fib6_nh_init+0x3d8/0x1580 [ 2140.036679][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2140.036679][ T254] ip6_route_add+0x1c/0x140 [ 2140.036679][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2140.036679][ T254] inet6_addr_add+0x4f8/0xa40 [ 2140.036679][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.036679][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.036679][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.036679][ T254] netlink_unicast+0x449/0x710 [ 2140.036679][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.036679][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.036679][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.036679][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.036679][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.036679][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.036679][ T254] [ 2140.038922][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.038922][ T254] netdev_get_by_index+0x5e/0x80 [ 2140.038922][ T254] fib6_nh_init+0x3d8/0x1580 [ 2140.038922][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2140.038922][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2140.038922][ T254] ipv6_add_addr+0x411/0x2000 [ 2140.038922][ T254] inet6_addr_add+0x30e/0xa40 [ 2140.038922][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.038922][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.038922][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.038922][ T254] netlink_unicast+0x449/0x710 [ 2140.038922][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.038922][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.038922][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.038922][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.038922][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.038922][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.038922][ T254] [ 2140.041162][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.041162][ T254] netdev_get_by_index+0x5e/0x80 [ 2140.041162][ T254] fib6_nh_init+0x3d8/0x1580 [ 2140.041162][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2140.041162][ T254] ip6_route_add+0x1c/0x140 [ 2140.041162][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2140.041162][ T254] addrconf_add_dev+0xe2/0x170 [ 2140.041162][ T254] inet6_addr_add+0x12f/0xa40 [ 2140.041162][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2140.041162][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.041162][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.041162][ T254] netlink_unicast+0x449/0x710 [ 2140.041162][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.041162][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.041162][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.041162][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.041162][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.041162][ T254] [ 2140.043305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.043305][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2140.043305][ T254] ipv6_find_idev+0x102/0x170 [ 2140.043305][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2140.043305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.043305][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.043305][ T254] netlink_unicast+0x449/0x710 [ 2140.043305][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.043305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.043305][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.043305][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.043305][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.043305][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.043305][ T254] [ 2140.044987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2140.044987][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2140.044987][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2140.044987][ T254] ipv6_find_idev+0x102/0x170 [ 2140.044987][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2140.044987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2140.044987][ T254] netlink_rcv_skb+0x130/0x360 [ 2140.044987][ T254] netlink_unicast+0x449/0x710 [ 2140.044987][ T254] netlink_sendmsg+0x723/0xbe0 [ 2140.044987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2140.044987][ T254] ___sys_sendmsg+0xee/0x170 [ 2140.044987][ T254] __sys_sendmsg+0xcd/0x170 [ 2140.044987][ T254] do_syscall_64+0xc6/0x1e0 [ 2140.044987][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2140.044987][ T254] [ 2150.288001][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2150.288612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.288612][ T254] dst_init+0x84/0x4a0 [ 2150.288612][ T254] dst_alloc+0x97/0x150 [ 2150.288612][ T254] ip6_dst_alloc+0x23/0x90 [ 2150.288612][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2150.288612][ T254] ip6_pol_route+0x56f/0x840 [ 2150.288612][ T254] fib6_rule_lookup+0x334/0x630 [ 2150.288612][ T254] ip6_route_output_flags+0x259/0x480 [ 2150.288612][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2150.288612][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2150.288612][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.288612][ T254] netlink_unicast+0x449/0x710 [ 2150.288612][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.288612][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.288612][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.288612][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.288612][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.288612][ T254] [ 2150.290793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.290793][ T254] netdev_get_by_index+0x5e/0x80 [ 2150.290793][ T254] fib6_nh_init+0x3d8/0x1580 [ 2150.290793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2150.290793][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2150.290793][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2150.290793][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2150.290793][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2150.290793][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2150.290793][ T254] addrconf_dad_begin+0x310/0x670 [ 2150.290793][ T254] addrconf_dad_work+0x10b/0xab0 [ 2150.290793][ T254] process_one_work+0x84d/0x18a0 [ 2150.290793][ T254] worker_thread+0x587/0xd30 [ 2150.290793][ T254] kthread+0x28a/0x350 [ 2150.290793][ T254] ret_from_fork+0x31/0x70 [ 2150.290793][ T254] ret_from_fork_asm+0x1a/0x30 [ 2150.290793][ T254] [ 2150.292950][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.292950][ T254] netdev_get_by_index+0x5e/0x80 [ 2150.292950][ T254] fib6_nh_init+0x3d8/0x1580 [ 2150.292950][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2150.292950][ T254] ip6_route_add+0x1c/0x140 [ 2150.292950][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2150.292950][ T254] inet6_addr_add+0x4f8/0xa40 [ 2150.292950][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.292950][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.292950][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.292950][ T254] netlink_unicast+0x449/0x710 [ 2150.292950][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.292950][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.292950][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.292950][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.292950][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.292950][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.292950][ T254] [ 2150.295141][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.295141][ T254] netdev_get_by_index+0x5e/0x80 [ 2150.295141][ T254] fib6_nh_init+0x3d8/0x1580 [ 2150.295141][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2150.295141][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2150.295141][ T254] ipv6_add_addr+0x411/0x2000 [ 2150.295141][ T254] inet6_addr_add+0x30e/0xa40 [ 2150.295141][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.295141][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.295141][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.295141][ T254] netlink_unicast+0x449/0x710 [ 2150.295141][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.295141][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.295141][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.295141][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.295141][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.295141][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.295141][ T254] [ 2150.297412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.297412][ T254] netdev_get_by_index+0x5e/0x80 [ 2150.297412][ T254] fib6_nh_init+0x3d8/0x1580 [ 2150.297412][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2150.297412][ T254] ip6_route_add+0x1c/0x140 [ 2150.297412][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2150.297412][ T254] addrconf_add_dev+0xe2/0x170 [ 2150.297412][ T254] inet6_addr_add+0x12f/0xa40 [ 2150.297412][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2150.297412][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.297412][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.297412][ T254] netlink_unicast+0x449/0x710 [ 2150.297412][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.297412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.297412][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.297412][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.297412][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.297412][ T254] [ 2150.299594][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.299594][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2150.299594][ T254] ipv6_find_idev+0x102/0x170 [ 2150.299594][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.299594][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.299594][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.299594][ T254] netlink_unicast+0x449/0x710 [ 2150.299594][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.299594][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.299594][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.299594][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.299594][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.299594][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.299594][ T254] [ 2150.301355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2150.301355][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2150.301355][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2150.301355][ T254] ipv6_find_idev+0x102/0x170 [ 2150.301355][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2150.301355][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2150.301355][ T254] netlink_rcv_skb+0x130/0x360 [ 2150.301355][ T254] netlink_unicast+0x449/0x710 [ 2150.301355][ T254] netlink_sendmsg+0x723/0xbe0 [ 2150.301355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2150.301355][ T254] ___sys_sendmsg+0xee/0x170 [ 2150.301355][ T254] __sys_sendmsg+0xcd/0x170 [ 2150.301355][ T254] do_syscall_64+0xc6/0x1e0 [ 2150.301355][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2150.301355][ T254] [ 2160.423904][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2160.424528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.424528][ T254] dst_init+0x84/0x4a0 [ 2160.424528][ T254] dst_alloc+0x97/0x150 [ 2160.424528][ T254] ip6_dst_alloc+0x23/0x90 [ 2160.424528][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2160.424528][ T254] ip6_pol_route+0x56f/0x840 [ 2160.424528][ T254] fib6_rule_lookup+0x334/0x630 [ 2160.424528][ T254] ip6_route_output_flags+0x259/0x480 [ 2160.424528][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2160.424528][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2160.424528][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.424528][ T254] netlink_unicast+0x449/0x710 [ 2160.424528][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.424528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.424528][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.424528][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.424528][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.424528][ T254] [ 2160.426765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.426765][ T254] netdev_get_by_index+0x5e/0x80 [ 2160.426765][ T254] fib6_nh_init+0x3d8/0x1580 [ 2160.426765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2160.426765][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2160.426765][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2160.426765][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2160.426765][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2160.426765][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2160.426765][ T254] addrconf_dad_begin+0x310/0x670 [ 2160.426765][ T254] addrconf_dad_work+0x10b/0xab0 [ 2160.426765][ T254] process_one_work+0x84d/0x18a0 [ 2160.426765][ T254] worker_thread+0x587/0xd30 [ 2160.426765][ T254] kthread+0x28a/0x350 [ 2160.426765][ T254] ret_from_fork+0x31/0x70 [ 2160.426765][ T254] ret_from_fork_asm+0x1a/0x30 [ 2160.426765][ T254] [ 2160.428910][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.428910][ T254] netdev_get_by_index+0x5e/0x80 [ 2160.428910][ T254] fib6_nh_init+0x3d8/0x1580 [ 2160.428910][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2160.428910][ T254] ip6_route_add+0x1c/0x140 [ 2160.428910][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2160.428910][ T254] inet6_addr_add+0x4f8/0xa40 [ 2160.428910][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.428910][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.428910][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.428910][ T254] netlink_unicast+0x449/0x710 [ 2160.428910][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.428910][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.428910][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.428910][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.428910][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.428910][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.428910][ T254] [ 2160.431098][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.431098][ T254] netdev_get_by_index+0x5e/0x80 [ 2160.431098][ T254] fib6_nh_init+0x3d8/0x1580 [ 2160.431098][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2160.431098][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2160.431098][ T254] ipv6_add_addr+0x411/0x2000 [ 2160.431098][ T254] inet6_addr_add+0x30e/0xa40 [ 2160.431098][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.431098][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.431098][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.431098][ T254] netlink_unicast+0x449/0x710 [ 2160.431098][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.431098][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.431098][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.431098][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.431098][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.431098][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.431098][ T254] [ 2160.433471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.433471][ T254] netdev_get_by_index+0x5e/0x80 [ 2160.433471][ T254] fib6_nh_init+0x3d8/0x1580 [ 2160.433471][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2160.433471][ T254] ip6_route_add+0x1c/0x140 [ 2160.433471][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2160.433471][ T254] addrconf_add_dev+0xe2/0x170 [ 2160.433471][ T254] inet6_addr_add+0x12f/0xa40 [ 2160.433471][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2160.433471][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.433471][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.433471][ T254] netlink_unicast+0x449/0x710 [ 2160.433471][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.433471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.433471][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.433471][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.433471][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.433471][ T254] [ 2160.435668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.435668][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2160.435668][ T254] ipv6_find_idev+0x102/0x170 [ 2160.435668][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.435668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.435668][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.435668][ T254] netlink_unicast+0x449/0x710 [ 2160.435668][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.435668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.435668][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.435668][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.435668][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.435668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.435668][ T254] [ 2160.437414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2160.437414][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2160.437414][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2160.437414][ T254] ipv6_find_idev+0x102/0x170 [ 2160.437414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2160.437414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2160.437414][ T254] netlink_rcv_skb+0x130/0x360 [ 2160.437414][ T254] netlink_unicast+0x449/0x710 [ 2160.437414][ T254] netlink_sendmsg+0x723/0xbe0 [ 2160.437414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2160.437414][ T254] ___sys_sendmsg+0xee/0x170 [ 2160.437414][ T254] __sys_sendmsg+0xcd/0x170 [ 2160.437414][ T254] do_syscall_64+0xc6/0x1e0 [ 2160.437414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2160.437414][ T254] [ 2170.679961][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2170.680496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.680496][ T254] dst_init+0x84/0x4a0 [ 2170.680496][ T254] dst_alloc+0x97/0x150 [ 2170.680496][ T254] ip6_dst_alloc+0x23/0x90 [ 2170.680496][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2170.680496][ T254] ip6_pol_route+0x56f/0x840 [ 2170.680496][ T254] fib6_rule_lookup+0x334/0x630 [ 2170.680496][ T254] ip6_route_output_flags+0x259/0x480 [ 2170.680496][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2170.680496][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2170.680496][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.680496][ T254] netlink_unicast+0x449/0x710 [ 2170.680496][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.680496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.680496][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.680496][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.680496][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.680496][ T254] [ 2170.682645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.682645][ T254] netdev_get_by_index+0x5e/0x80 [ 2170.682645][ T254] fib6_nh_init+0x3d8/0x1580 [ 2170.682645][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2170.682645][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2170.682645][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2170.682645][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2170.682645][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2170.682645][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2170.682645][ T254] addrconf_dad_begin+0x310/0x670 [ 2170.682645][ T254] addrconf_dad_work+0x10b/0xab0 [ 2170.682645][ T254] process_one_work+0x84d/0x18a0 [ 2170.682645][ T254] worker_thread+0x587/0xd30 [ 2170.682645][ T254] kthread+0x28a/0x350 [ 2170.682645][ T254] ret_from_fork+0x31/0x70 [ 2170.682645][ T254] ret_from_fork_asm+0x1a/0x30 [ 2170.682645][ T254] [ 2170.684788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.684788][ T254] netdev_get_by_index+0x5e/0x80 [ 2170.684788][ T254] fib6_nh_init+0x3d8/0x1580 [ 2170.684788][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2170.684788][ T254] ip6_route_add+0x1c/0x140 [ 2170.684788][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2170.684788][ T254] inet6_addr_add+0x4f8/0xa40 [ 2170.684788][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.684788][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.684788][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.684788][ T254] netlink_unicast+0x449/0x710 [ 2170.684788][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.684788][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.684788][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.684788][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.684788][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.684788][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.684788][ T254] [ 2170.687070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.687070][ T254] netdev_get_by_index+0x5e/0x80 [ 2170.687070][ T254] fib6_nh_init+0x3d8/0x1580 [ 2170.687070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2170.687070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2170.687070][ T254] ipv6_add_addr+0x411/0x2000 [ 2170.687070][ T254] inet6_addr_add+0x30e/0xa40 [ 2170.687070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.687070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.687070][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.687070][ T254] netlink_unicast+0x449/0x710 [ 2170.687070][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.687070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.687070][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.687070][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.687070][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.687070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.687070][ T254] [ 2170.689284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.689284][ T254] netdev_get_by_index+0x5e/0x80 [ 2170.689284][ T254] fib6_nh_init+0x3d8/0x1580 [ 2170.689284][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2170.689284][ T254] ip6_route_add+0x1c/0x140 [ 2170.689284][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2170.689284][ T254] addrconf_add_dev+0xe2/0x170 [ 2170.689284][ T254] inet6_addr_add+0x12f/0xa40 [ 2170.689284][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2170.689284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.689284][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.689284][ T254] netlink_unicast+0x449/0x710 [ 2170.689284][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.689284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.689284][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.689284][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.689284][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.689284][ T254] [ 2170.691479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.691479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2170.691479][ T254] ipv6_find_idev+0x102/0x170 [ 2170.691479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.691479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.691479][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.691479][ T254] netlink_unicast+0x449/0x710 [ 2170.691479][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.691479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.691479][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.691479][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.691479][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.691479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.691479][ T254] [ 2170.693197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2170.693197][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2170.693197][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2170.693197][ T254] ipv6_find_idev+0x102/0x170 [ 2170.693197][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2170.693197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2170.693197][ T254] netlink_rcv_skb+0x130/0x360 [ 2170.693197][ T254] netlink_unicast+0x449/0x710 [ 2170.693197][ T254] netlink_sendmsg+0x723/0xbe0 [ 2170.693197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2170.693197][ T254] ___sys_sendmsg+0xee/0x170 [ 2170.693197][ T254] __sys_sendmsg+0xcd/0x170 [ 2170.693197][ T254] do_syscall_64+0xc6/0x1e0 [ 2170.693197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2170.693197][ T254] [ 2180.799927][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2180.800449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.800449][ T254] dst_init+0x84/0x4a0 [ 2180.800449][ T254] dst_alloc+0x97/0x150 [ 2180.800449][ T254] ip6_dst_alloc+0x23/0x90 [ 2180.800449][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2180.800449][ T254] ip6_pol_route+0x56f/0x840 [ 2180.800449][ T254] fib6_rule_lookup+0x334/0x630 [ 2180.800449][ T254] ip6_route_output_flags+0x259/0x480 [ 2180.800449][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2180.800449][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2180.800449][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.800449][ T254] netlink_unicast+0x449/0x710 [ 2180.800449][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.800449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.800449][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.800449][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.800449][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.800449][ T254] [ 2180.802615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.802615][ T254] netdev_get_by_index+0x5e/0x80 [ 2180.802615][ T254] fib6_nh_init+0x3d8/0x1580 [ 2180.802615][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2180.802615][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2180.802615][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2180.802615][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2180.802615][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2180.802615][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2180.802615][ T254] addrconf_dad_begin+0x310/0x670 [ 2180.802615][ T254] addrconf_dad_work+0x10b/0xab0 [ 2180.802615][ T254] process_one_work+0x84d/0x18a0 [ 2180.802615][ T254] worker_thread+0x587/0xd30 [ 2180.802615][ T254] kthread+0x28a/0x350 [ 2180.802615][ T254] ret_from_fork+0x31/0x70 [ 2180.802615][ T254] ret_from_fork_asm+0x1a/0x30 [ 2180.802615][ T254] [ 2180.804722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.804722][ T254] netdev_get_by_index+0x5e/0x80 [ 2180.804722][ T254] fib6_nh_init+0x3d8/0x1580 [ 2180.804722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2180.804722][ T254] ip6_route_add+0x1c/0x140 [ 2180.804722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2180.804722][ T254] inet6_addr_add+0x4f8/0xa40 [ 2180.804722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.804722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.804722][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.804722][ T254] netlink_unicast+0x449/0x710 [ 2180.804722][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.804722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.804722][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.804722][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.804722][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.804722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.804722][ T254] [ 2180.806953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.806953][ T254] netdev_get_by_index+0x5e/0x80 [ 2180.806953][ T254] fib6_nh_init+0x3d8/0x1580 [ 2180.806953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2180.806953][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2180.806953][ T254] ipv6_add_addr+0x411/0x2000 [ 2180.806953][ T254] inet6_addr_add+0x30e/0xa40 [ 2180.806953][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.806953][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.806953][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.806953][ T254] netlink_unicast+0x449/0x710 [ 2180.806953][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.806953][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.806953][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.806953][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.806953][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.806953][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.806953][ T254] [ 2180.809171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.809171][ T254] netdev_get_by_index+0x5e/0x80 [ 2180.809171][ T254] fib6_nh_init+0x3d8/0x1580 [ 2180.809171][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2180.809171][ T254] ip6_route_add+0x1c/0x140 [ 2180.809171][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2180.809171][ T254] addrconf_add_dev+0xe2/0x170 [ 2180.809171][ T254] inet6_addr_add+0x12f/0xa40 [ 2180.809171][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2180.809171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.809171][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.809171][ T254] netlink_unicast+0x449/0x710 [ 2180.809171][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.809171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.809171][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.809171][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.809171][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.809171][ T254] [ 2180.811359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.811359][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2180.811359][ T254] ipv6_find_idev+0x102/0x170 [ 2180.811359][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.811359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.811359][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.811359][ T254] netlink_unicast+0x449/0x710 [ 2180.811359][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.811359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.811359][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.811359][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.811359][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.811359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.811359][ T254] [ 2180.813043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2180.813043][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2180.813043][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2180.813043][ T254] ipv6_find_idev+0x102/0x170 [ 2180.813043][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2180.813043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2180.813043][ T254] netlink_rcv_skb+0x130/0x360 [ 2180.813043][ T254] netlink_unicast+0x449/0x710 [ 2180.813043][ T254] netlink_sendmsg+0x723/0xbe0 [ 2180.813043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2180.813043][ T254] ___sys_sendmsg+0xee/0x170 [ 2180.813043][ T254] __sys_sendmsg+0xcd/0x170 [ 2180.813043][ T254] do_syscall_64+0xc6/0x1e0 [ 2180.813043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2180.813043][ T254] [ 2191.055857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2191.056403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.056403][ T254] dst_init+0x84/0x4a0 [ 2191.056403][ T254] dst_alloc+0x97/0x150 [ 2191.056403][ T254] ip6_dst_alloc+0x23/0x90 [ 2191.056403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2191.056403][ T254] ip6_pol_route+0x56f/0x840 [ 2191.056403][ T254] fib6_rule_lookup+0x334/0x630 [ 2191.056403][ T254] ip6_route_output_flags+0x259/0x480 [ 2191.056403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2191.056403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2191.056403][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.056403][ T254] netlink_unicast+0x449/0x710 [ 2191.056403][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.056403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.056403][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.056403][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.056403][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.056403][ T254] [ 2191.058610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.058610][ T254] netdev_get_by_index+0x5e/0x80 [ 2191.058610][ T254] fib6_nh_init+0x3d8/0x1580 [ 2191.058610][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2191.058610][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2191.058610][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2191.058610][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2191.058610][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2191.058610][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2191.058610][ T254] addrconf_dad_begin+0x310/0x670 [ 2191.058610][ T254] addrconf_dad_work+0x10b/0xab0 [ 2191.058610][ T254] process_one_work+0x84d/0x18a0 [ 2191.058610][ T254] worker_thread+0x587/0xd30 [ 2191.058610][ T254] kthread+0x28a/0x350 [ 2191.058610][ T254] ret_from_fork+0x31/0x70 [ 2191.058610][ T254] ret_from_fork_asm+0x1a/0x30 [ 2191.058610][ T254] [ 2191.060715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.060715][ T254] netdev_get_by_index+0x5e/0x80 [ 2191.060715][ T254] fib6_nh_init+0x3d8/0x1580 [ 2191.060715][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2191.060715][ T254] ip6_route_add+0x1c/0x140 [ 2191.060715][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2191.060715][ T254] inet6_addr_add+0x4f8/0xa40 [ 2191.060715][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.060715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.060715][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.060715][ T254] netlink_unicast+0x449/0x710 [ 2191.060715][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.060715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.060715][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.060715][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.060715][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.060715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.060715][ T254] [ 2191.062929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.062929][ T254] netdev_get_by_index+0x5e/0x80 [ 2191.062929][ T254] fib6_nh_init+0x3d8/0x1580 [ 2191.062929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2191.062929][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2191.062929][ T254] ipv6_add_addr+0x411/0x2000 [ 2191.062929][ T254] inet6_addr_add+0x30e/0xa40 [ 2191.062929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.062929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.062929][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.062929][ T254] netlink_unicast+0x449/0x710 [ 2191.062929][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.062929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.062929][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.062929][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.062929][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.062929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.062929][ T254] [ 2191.065136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.065136][ T254] netdev_get_by_index+0x5e/0x80 [ 2191.065136][ T254] fib6_nh_init+0x3d8/0x1580 [ 2191.065136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2191.065136][ T254] ip6_route_add+0x1c/0x140 [ 2191.065136][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2191.065136][ T254] addrconf_add_dev+0xe2/0x170 [ 2191.065136][ T254] inet6_addr_add+0x12f/0xa40 [ 2191.065136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2191.065136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.065136][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.065136][ T254] netlink_unicast+0x449/0x710 [ 2191.065136][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.065136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.065136][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.065136][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.065136][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.065136][ T254] [ 2191.067312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.067312][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2191.067312][ T254] ipv6_find_idev+0x102/0x170 [ 2191.067312][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2191.067312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.067312][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.067312][ T254] netlink_unicast+0x449/0x710 [ 2191.067312][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.067312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.067312][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.067312][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.067312][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.067312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.067312][ T254] [ 2191.069043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2191.069043][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2191.069043][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2191.069043][ T254] ipv6_find_idev+0x102/0x170 [ 2191.069043][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2191.069043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2191.069043][ T254] netlink_rcv_skb+0x130/0x360 [ 2191.069043][ T254] netlink_unicast+0x449/0x710 [ 2191.069043][ T254] netlink_sendmsg+0x723/0xbe0 [ 2191.069043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2191.069043][ T254] ___sys_sendmsg+0xee/0x170 [ 2191.069043][ T254] __sys_sendmsg+0xcd/0x170 [ 2191.069043][ T254] do_syscall_64+0xc6/0x1e0 [ 2191.069043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2191.069043][ T254] [ 2201.311915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2201.312504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.312504][ T254] dst_init+0x84/0x4a0 [ 2201.312504][ T254] dst_alloc+0x97/0x150 [ 2201.312504][ T254] ip6_dst_alloc+0x23/0x90 [ 2201.312504][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2201.312504][ T254] ip6_pol_route+0x56f/0x840 [ 2201.312504][ T254] fib6_rule_lookup+0x334/0x630 [ 2201.312504][ T254] ip6_route_output_flags+0x259/0x480 [ 2201.312504][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2201.312504][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2201.312504][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.312504][ T254] netlink_unicast+0x449/0x710 [ 2201.312504][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.312504][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.312504][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.312504][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.312504][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.312504][ T254] [ 2201.314667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.314667][ T254] netdev_get_by_index+0x5e/0x80 [ 2201.314667][ T254] fib6_nh_init+0x3d8/0x1580 [ 2201.314667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2201.314667][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2201.314667][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2201.314667][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2201.314667][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2201.314667][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2201.314667][ T254] addrconf_dad_begin+0x310/0x670 [ 2201.314667][ T254] addrconf_dad_work+0x10b/0xab0 [ 2201.314667][ T254] process_one_work+0x84d/0x18a0 [ 2201.314667][ T254] worker_thread+0x587/0xd30 [ 2201.314667][ T254] kthread+0x28a/0x350 [ 2201.314667][ T254] ret_from_fork+0x31/0x70 [ 2201.314667][ T254] ret_from_fork_asm+0x1a/0x30 [ 2201.314667][ T254] [ 2201.316850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.316850][ T254] netdev_get_by_index+0x5e/0x80 [ 2201.316850][ T254] fib6_nh_init+0x3d8/0x1580 [ 2201.316850][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2201.316850][ T254] ip6_route_add+0x1c/0x140 [ 2201.316850][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2201.316850][ T254] inet6_addr_add+0x4f8/0xa40 [ 2201.316850][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2201.316850][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2201.316850][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.316850][ T254] netlink_unicast+0x449/0x710 [ 2201.316850][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.316850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.316850][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.316850][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.316850][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.316850][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2201.316850][ T254] [ 2201.319043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.319043][ T254] netdev_get_by_index+0x5e/0x80 [ 2201.319043][ T254] fib6_nh_init+0x3d8/0x1580 [ 2201.319043][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2201.319043][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2201.319043][ T254] ipv6_add_addr+0x411/0x2000 [ 2201.319043][ T254] inet6_addr_add+0x30e/0xa40 [ 2201.319043][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2201.319043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2201.319043][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.319043][ T254] netlink_unicast+0x449/0x710 [ 2201.319043][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.319043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.319043][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.319043][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.319043][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.319043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2201.319043][ T254] [ 2201.321300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.321300][ T254] netdev_get_by_index+0x5e/0x80 [ 2201.321300][ T254] fib6_nh_init+0x3d8/0x1580 [ 2201.321300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2201.321300][ T254] ip6_route_add+0x1c/0x140 [ 2201.321300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2201.321300][ T254] addrconf_add_dev+0xe2/0x170 [ 2201.321300][ T254] inet6_addr_add+0x12f/0xa40 [ 2201.321300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2201.321300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2201.321300][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.321300][ T254] netlink_unicast+0x449/0x710 [ 2201.321300][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.321300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.321300][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.321300][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.321300][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.321300][ T254] [ 2201.323504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.323504][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2201.323504][ T254] ipv6_find_idev+0x102/0x170 [ 2201.323504][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2201.323504][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2201.323504][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.323504][ T254] netlink_unicast+0x449/0x710 [ 2201.323504][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.323504][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.323504][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.323504][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.323504][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.323504][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2201.323504][ T254] [ 2201.325233][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2201.325233][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2201.325233][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2201.325233][ T254] ipv6_find_idev+0x102/0x170 [ 2201.325233][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2201.325233][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2201.325233][ T254] netlink_rcv_skb+0x130/0x360 [ 2201.325233][ T254] netlink_unicast+0x449/0x710 [ 2201.325233][ T254] netlink_sendmsg+0x723/0xbe0 [ 2201.325233][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2201.325233][ T254] ___sys_sendmsg+0xee/0x170 [ 2201.325233][ T254] __sys_sendmsg+0xcd/0x170 [ 2201.325233][ T254] do_syscall_64+0xc6/0x1e0 [ 2201.325233][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2201.325233][ T254] [ 2211.359874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2211.360402][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.360402][ T254] dst_init+0x84/0x4a0 [ 2211.360402][ T254] dst_alloc+0x97/0x150 [ 2211.360402][ T254] ip6_dst_alloc+0x23/0x90 [ 2211.360402][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2211.360402][ T254] ip6_pol_route+0x56f/0x840 [ 2211.360402][ T254] fib6_rule_lookup+0x334/0x630 [ 2211.360402][ T254] ip6_route_output_flags+0x259/0x480 [ 2211.360402][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2211.360402][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2211.360402][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.360402][ T254] netlink_unicast+0x449/0x710 [ 2211.360402][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.360402][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.360402][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.360402][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.360402][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.360402][ T254] [ 2211.362569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.362569][ T254] netdev_get_by_index+0x5e/0x80 [ 2211.362569][ T254] fib6_nh_init+0x3d8/0x1580 [ 2211.362569][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2211.362569][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2211.362569][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2211.362569][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2211.362569][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2211.362569][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2211.362569][ T254] addrconf_dad_begin+0x310/0x670 [ 2211.362569][ T254] addrconf_dad_work+0x10b/0xab0 [ 2211.362569][ T254] process_one_work+0x84d/0x18a0 [ 2211.362569][ T254] worker_thread+0x587/0xd30 [ 2211.362569][ T254] kthread+0x28a/0x350 [ 2211.362569][ T254] ret_from_fork+0x31/0x70 [ 2211.362569][ T254] ret_from_fork_asm+0x1a/0x30 [ 2211.362569][ T254] [ 2211.364671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.364671][ T254] netdev_get_by_index+0x5e/0x80 [ 2211.364671][ T254] fib6_nh_init+0x3d8/0x1580 [ 2211.364671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2211.364671][ T254] ip6_route_add+0x1c/0x140 [ 2211.364671][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2211.364671][ T254] inet6_addr_add+0x4f8/0xa40 [ 2211.364671][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.364671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.364671][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.364671][ T254] netlink_unicast+0x449/0x710 [ 2211.364671][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.364671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.364671][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.364671][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.364671][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.364671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.364671][ T254] [ 2211.366967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.366967][ T254] netdev_get_by_index+0x5e/0x80 [ 2211.366967][ T254] fib6_nh_init+0x3d8/0x1580 [ 2211.366967][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2211.366967][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2211.366967][ T254] ipv6_add_addr+0x411/0x2000 [ 2211.366967][ T254] inet6_addr_add+0x30e/0xa40 [ 2211.366967][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.366967][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.366967][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.366967][ T254] netlink_unicast+0x449/0x710 [ 2211.366967][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.366967][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.366967][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.366967][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.366967][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.366967][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.366967][ T254] [ 2211.369151][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.369151][ T254] netdev_get_by_index+0x5e/0x80 [ 2211.369151][ T254] fib6_nh_init+0x3d8/0x1580 [ 2211.369151][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2211.369151][ T254] ip6_route_add+0x1c/0x140 [ 2211.369151][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2211.369151][ T254] addrconf_add_dev+0xe2/0x170 [ 2211.369151][ T254] inet6_addr_add+0x12f/0xa40 [ 2211.369151][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2211.369151][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.369151][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.369151][ T254] netlink_unicast+0x449/0x710 [ 2211.369151][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.369151][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.369151][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.369151][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.369151][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.369151][ T254] [ 2211.371306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.371306][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2211.371306][ T254] ipv6_find_idev+0x102/0x170 [ 2211.371306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.371306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.371306][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.371306][ T254] netlink_unicast+0x449/0x710 [ 2211.371306][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.371306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.371306][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.371306][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.371306][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.371306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.371306][ T254] [ 2211.373007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2211.373007][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2211.373007][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2211.373007][ T254] ipv6_find_idev+0x102/0x170 [ 2211.373007][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2211.373007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2211.373007][ T254] netlink_rcv_skb+0x130/0x360 [ 2211.373007][ T254] netlink_unicast+0x449/0x710 [ 2211.373007][ T254] netlink_sendmsg+0x723/0xbe0 [ 2211.373007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2211.373007][ T254] ___sys_sendmsg+0xee/0x170 [ 2211.373007][ T254] __sys_sendmsg+0xcd/0x170 [ 2211.373007][ T254] do_syscall_64+0xc6/0x1e0 [ 2211.373007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2211.373007][ T254] [ 2221.447919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2221.448511][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.448511][ T254] dst_init+0x84/0x4a0 [ 2221.448511][ T254] dst_alloc+0x97/0x150 [ 2221.448511][ T254] ip6_dst_alloc+0x23/0x90 [ 2221.448511][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2221.448511][ T254] ip6_pol_route+0x56f/0x840 [ 2221.448511][ T254] fib6_rule_lookup+0x334/0x630 [ 2221.448511][ T254] ip6_route_output_flags+0x259/0x480 [ 2221.448511][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2221.448511][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2221.448511][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.448511][ T254] netlink_unicast+0x449/0x710 [ 2221.448511][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.448511][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.448511][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.448511][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.448511][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.448511][ T254] [ 2221.450743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.450743][ T254] netdev_get_by_index+0x5e/0x80 [ 2221.450743][ T254] fib6_nh_init+0x3d8/0x1580 [ 2221.450743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2221.450743][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2221.450743][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2221.450743][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2221.450743][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2221.450743][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2221.450743][ T254] addrconf_dad_begin+0x310/0x670 [ 2221.450743][ T254] addrconf_dad_work+0x10b/0xab0 [ 2221.450743][ T254] process_one_work+0x84d/0x18a0 [ 2221.450743][ T254] worker_thread+0x587/0xd30 [ 2221.450743][ T254] kthread+0x28a/0x350 [ 2221.450743][ T254] ret_from_fork+0x31/0x70 [ 2221.450743][ T254] ret_from_fork_asm+0x1a/0x30 [ 2221.450743][ T254] [ 2221.452867][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.452867][ T254] netdev_get_by_index+0x5e/0x80 [ 2221.452867][ T254] fib6_nh_init+0x3d8/0x1580 [ 2221.452867][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2221.452867][ T254] ip6_route_add+0x1c/0x140 [ 2221.452867][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2221.452867][ T254] inet6_addr_add+0x4f8/0xa40 [ 2221.452867][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.452867][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.452867][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.452867][ T254] netlink_unicast+0x449/0x710 [ 2221.452867][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.452867][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.452867][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.452867][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.452867][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.452867][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.452867][ T254] [ 2221.455225][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.455225][ T254] netdev_get_by_index+0x5e/0x80 [ 2221.455225][ T254] fib6_nh_init+0x3d8/0x1580 [ 2221.455225][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2221.455225][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2221.455225][ T254] ipv6_add_addr+0x411/0x2000 [ 2221.455225][ T254] inet6_addr_add+0x30e/0xa40 [ 2221.455225][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.455225][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.455225][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.455225][ T254] netlink_unicast+0x449/0x710 [ 2221.455225][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.455225][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.455225][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.455225][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.455225][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.455225][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.455225][ T254] [ 2221.457483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.457483][ T254] netdev_get_by_index+0x5e/0x80 [ 2221.457483][ T254] fib6_nh_init+0x3d8/0x1580 [ 2221.457483][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2221.457483][ T254] ip6_route_add+0x1c/0x140 [ 2221.457483][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2221.457483][ T254] addrconf_add_dev+0xe2/0x170 [ 2221.457483][ T254] inet6_addr_add+0x12f/0xa40 [ 2221.457483][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2221.457483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.457483][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.457483][ T254] netlink_unicast+0x449/0x710 [ 2221.457483][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.457483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.457483][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.457483][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.457483][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.457483][ T254] [ 2221.459698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.459698][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2221.459698][ T254] ipv6_find_idev+0x102/0x170 [ 2221.459698][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.459698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.459698][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.459698][ T254] netlink_unicast+0x449/0x710 [ 2221.459698][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.459698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.459698][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.459698][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.459698][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.459698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.459698][ T254] [ 2221.461428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2221.461428][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2221.461428][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2221.461428][ T254] ipv6_find_idev+0x102/0x170 [ 2221.461428][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2221.461428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2221.461428][ T254] netlink_rcv_skb+0x130/0x360 [ 2221.461428][ T254] netlink_unicast+0x449/0x710 [ 2221.461428][ T254] netlink_sendmsg+0x723/0xbe0 [ 2221.461428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2221.461428][ T254] ___sys_sendmsg+0xee/0x170 [ 2221.461428][ T254] __sys_sendmsg+0xcd/0x170 [ 2221.461428][ T254] do_syscall_64+0xc6/0x1e0 [ 2221.461428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2221.461428][ T254] [ 2231.703961][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2231.704583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.704583][ T254] dst_init+0x84/0x4a0 [ 2231.704583][ T254] dst_alloc+0x97/0x150 [ 2231.704583][ T254] ip6_dst_alloc+0x23/0x90 [ 2231.704583][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2231.704583][ T254] ip6_pol_route+0x56f/0x840 [ 2231.704583][ T254] fib6_rule_lookup+0x334/0x630 [ 2231.704583][ T254] ip6_route_output_flags+0x259/0x480 [ 2231.704583][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2231.704583][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2231.704583][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.704583][ T254] netlink_unicast+0x449/0x710 [ 2231.704583][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.704583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.704583][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.704583][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.704583][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.704583][ T254] [ 2231.706824][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.706824][ T254] netdev_get_by_index+0x5e/0x80 [ 2231.706824][ T254] fib6_nh_init+0x3d8/0x1580 [ 2231.706824][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2231.706824][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2231.706824][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2231.706824][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2231.706824][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2231.706824][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2231.706824][ T254] addrconf_dad_begin+0x310/0x670 [ 2231.706824][ T254] addrconf_dad_work+0x10b/0xab0 [ 2231.706824][ T254] process_one_work+0x84d/0x18a0 [ 2231.706824][ T254] worker_thread+0x587/0xd30 [ 2231.706824][ T254] kthread+0x28a/0x350 [ 2231.706824][ T254] ret_from_fork+0x31/0x70 [ 2231.706824][ T254] ret_from_fork_asm+0x1a/0x30 [ 2231.706824][ T254] [ 2231.709004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.709004][ T254] netdev_get_by_index+0x5e/0x80 [ 2231.709004][ T254] fib6_nh_init+0x3d8/0x1580 [ 2231.709004][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2231.709004][ T254] ip6_route_add+0x1c/0x140 [ 2231.709004][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2231.709004][ T254] inet6_addr_add+0x4f8/0xa40 [ 2231.709004][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.709004][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.709004][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.709004][ T254] netlink_unicast+0x449/0x710 [ 2231.709004][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.709004][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.709004][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.709004][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.709004][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.709004][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.709004][ T254] [ 2231.711269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.711269][ T254] netdev_get_by_index+0x5e/0x80 [ 2231.711269][ T254] fib6_nh_init+0x3d8/0x1580 [ 2231.711269][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2231.711269][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2231.711269][ T254] ipv6_add_addr+0x411/0x2000 [ 2231.711269][ T254] inet6_addr_add+0x30e/0xa40 [ 2231.711269][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.711269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.711269][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.711269][ T254] netlink_unicast+0x449/0x710 [ 2231.711269][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.711269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.711269][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.711269][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.711269][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.711269][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.711269][ T254] [ 2231.713537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.713537][ T254] netdev_get_by_index+0x5e/0x80 [ 2231.713537][ T254] fib6_nh_init+0x3d8/0x1580 [ 2231.713537][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2231.713537][ T254] ip6_route_add+0x1c/0x140 [ 2231.713537][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2231.713537][ T254] addrconf_add_dev+0xe2/0x170 [ 2231.713537][ T254] inet6_addr_add+0x12f/0xa40 [ 2231.713537][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2231.713537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.713537][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.713537][ T254] netlink_unicast+0x449/0x710 [ 2231.713537][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.713537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.713537][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.713537][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.713537][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.713537][ T254] [ 2231.715779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.715779][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2231.715779][ T254] ipv6_find_idev+0x102/0x170 [ 2231.715779][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.715779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.715779][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.715779][ T254] netlink_unicast+0x449/0x710 [ 2231.715779][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.715779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.715779][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.715779][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.715779][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.715779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.715779][ T254] [ 2231.717536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2231.717536][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2231.717536][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2231.717536][ T254] ipv6_find_idev+0x102/0x170 [ 2231.717536][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2231.717536][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2231.717536][ T254] netlink_rcv_skb+0x130/0x360 [ 2231.717536][ T254] netlink_unicast+0x449/0x710 [ 2231.717536][ T254] netlink_sendmsg+0x723/0xbe0 [ 2231.717536][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2231.717536][ T254] ___sys_sendmsg+0xee/0x170 [ 2231.717536][ T254] __sys_sendmsg+0xcd/0x170 [ 2231.717536][ T254] do_syscall_64+0xc6/0x1e0 [ 2231.717536][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2231.717536][ T254] [ 2241.959914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2241.960529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.960529][ T254] dst_init+0x84/0x4a0 [ 2241.960529][ T254] dst_alloc+0x97/0x150 [ 2241.960529][ T254] ip6_dst_alloc+0x23/0x90 [ 2241.960529][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2241.960529][ T254] ip6_pol_route+0x56f/0x840 [ 2241.960529][ T254] fib6_rule_lookup+0x334/0x630 [ 2241.960529][ T254] ip6_route_output_flags+0x259/0x480 [ 2241.960529][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2241.960529][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2241.960529][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.960529][ T254] netlink_unicast+0x449/0x710 [ 2241.960529][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.960529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.960529][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.960529][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.960529][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.960529][ T254] [ 2241.962619][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.962619][ T254] netdev_get_by_index+0x5e/0x80 [ 2241.962619][ T254] fib6_nh_init+0x3d8/0x1580 [ 2241.962619][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2241.962619][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2241.962619][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2241.962619][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2241.962619][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2241.962619][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2241.962619][ T254] addrconf_dad_begin+0x310/0x670 [ 2241.962619][ T254] addrconf_dad_work+0x10b/0xab0 [ 2241.962619][ T254] process_one_work+0x84d/0x18a0 [ 2241.962619][ T254] worker_thread+0x587/0xd30 [ 2241.962619][ T254] kthread+0x28a/0x350 [ 2241.962619][ T254] ret_from_fork+0x31/0x70 [ 2241.962619][ T254] ret_from_fork_asm+0x1a/0x30 [ 2241.962619][ T254] [ 2241.964827][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.964827][ T254] netdev_get_by_index+0x5e/0x80 [ 2241.964827][ T254] fib6_nh_init+0x3d8/0x1580 [ 2241.964827][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2241.964827][ T254] ip6_route_add+0x1c/0x140 [ 2241.964827][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2241.964827][ T254] inet6_addr_add+0x4f8/0xa40 [ 2241.964827][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.964827][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.964827][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.964827][ T254] netlink_unicast+0x449/0x710 [ 2241.964827][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.964827][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.964827][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.964827][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.964827][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.964827][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.964827][ T254] [ 2241.967113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.967113][ T254] netdev_get_by_index+0x5e/0x80 [ 2241.967113][ T254] fib6_nh_init+0x3d8/0x1580 [ 2241.967113][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2241.967113][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2241.967113][ T254] ipv6_add_addr+0x411/0x2000 [ 2241.967113][ T254] inet6_addr_add+0x30e/0xa40 [ 2241.967113][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.967113][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.967113][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.967113][ T254] netlink_unicast+0x449/0x710 [ 2241.967113][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.967113][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.967113][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.967113][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.967113][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.967113][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.967113][ T254] [ 2241.969377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.969377][ T254] netdev_get_by_index+0x5e/0x80 [ 2241.969377][ T254] fib6_nh_init+0x3d8/0x1580 [ 2241.969377][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2241.969377][ T254] ip6_route_add+0x1c/0x140 [ 2241.969377][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2241.969377][ T254] addrconf_add_dev+0xe2/0x170 [ 2241.969377][ T254] inet6_addr_add+0x12f/0xa40 [ 2241.969377][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2241.969377][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.969377][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.969377][ T254] netlink_unicast+0x449/0x710 [ 2241.969377][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.969377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.969377][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.969377][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.969377][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.969377][ T254] [ 2241.972144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.972144][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2241.972144][ T254] ipv6_find_idev+0x102/0x170 [ 2241.972144][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.972144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.972144][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.972144][ T254] netlink_unicast+0x449/0x710 [ 2241.972144][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.972144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.972144][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.972144][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.972144][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.972144][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.972144][ T254] [ 2241.973888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2241.973888][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2241.973888][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2241.973888][ T254] ipv6_find_idev+0x102/0x170 [ 2241.973888][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2241.973888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2241.973888][ T254] netlink_rcv_skb+0x130/0x360 [ 2241.973888][ T254] netlink_unicast+0x449/0x710 [ 2241.973888][ T254] netlink_sendmsg+0x723/0xbe0 [ 2241.973888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2241.973888][ T254] ___sys_sendmsg+0xee/0x170 [ 2241.973888][ T254] __sys_sendmsg+0xcd/0x170 [ 2241.973888][ T254] do_syscall_64+0xc6/0x1e0 [ 2241.973888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2241.973888][ T254] [ 2252.039912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2252.040449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.040449][ T254] dst_init+0x84/0x4a0 [ 2252.040449][ T254] dst_alloc+0x97/0x150 [ 2252.040449][ T254] ip6_dst_alloc+0x23/0x90 [ 2252.040449][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2252.040449][ T254] ip6_pol_route+0x56f/0x840 [ 2252.040449][ T254] fib6_rule_lookup+0x334/0x630 [ 2252.040449][ T254] ip6_route_output_flags+0x259/0x480 [ 2252.040449][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2252.040449][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2252.040449][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.040449][ T254] netlink_unicast+0x449/0x710 [ 2252.040449][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.040449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.040449][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.040449][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.040449][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.040449][ T254] [ 2252.042741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.042741][ T254] netdev_get_by_index+0x5e/0x80 [ 2252.042741][ T254] fib6_nh_init+0x3d8/0x1580 [ 2252.042741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2252.042741][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2252.042741][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2252.042741][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2252.042741][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2252.042741][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2252.042741][ T254] addrconf_dad_begin+0x310/0x670 [ 2252.042741][ T254] addrconf_dad_work+0x10b/0xab0 [ 2252.042741][ T254] process_one_work+0x84d/0x18a0 [ 2252.042741][ T254] worker_thread+0x587/0xd30 [ 2252.042741][ T254] kthread+0x28a/0x350 [ 2252.042741][ T254] ret_from_fork+0x31/0x70 [ 2252.042741][ T254] ret_from_fork_asm+0x1a/0x30 [ 2252.042741][ T254] [ 2252.044878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.044878][ T254] netdev_get_by_index+0x5e/0x80 [ 2252.044878][ T254] fib6_nh_init+0x3d8/0x1580 [ 2252.044878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2252.044878][ T254] ip6_route_add+0x1c/0x140 [ 2252.044878][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2252.044878][ T254] inet6_addr_add+0x4f8/0xa40 [ 2252.044878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2252.044878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2252.044878][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.044878][ T254] netlink_unicast+0x449/0x710 [ 2252.044878][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.044878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.044878][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.044878][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.044878][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.044878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2252.044878][ T254] [ 2252.047124][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.047124][ T254] netdev_get_by_index+0x5e/0x80 [ 2252.047124][ T254] fib6_nh_init+0x3d8/0x1580 [ 2252.047124][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2252.047124][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2252.047124][ T254] ipv6_add_addr+0x411/0x2000 [ 2252.047124][ T254] inet6_addr_add+0x30e/0xa40 [ 2252.047124][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2252.047124][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2252.047124][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.047124][ T254] netlink_unicast+0x449/0x710 [ 2252.047124][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.047124][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.047124][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.047124][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.047124][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.047124][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2252.047124][ T254] [ 2252.049385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.049385][ T254] netdev_get_by_index+0x5e/0x80 [ 2252.049385][ T254] fib6_nh_init+0x3d8/0x1580 [ 2252.049385][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2252.049385][ T254] ip6_route_add+0x1c/0x140 [ 2252.049385][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2252.049385][ T254] addrconf_add_dev+0xe2/0x170 [ 2252.049385][ T254] inet6_addr_add+0x12f/0xa40 [ 2252.049385][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2252.049385][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2252.049385][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.049385][ T254] netlink_unicast+0x449/0x710 [ 2252.049385][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.049385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.049385][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.049385][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.049385][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.049385][ T254] [ 2252.051623][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.051623][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2252.051623][ T254] ipv6_find_idev+0x102/0x170 [ 2252.051623][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2252.051623][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2252.051623][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.051623][ T254] netlink_unicast+0x449/0x710 [ 2252.051623][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.051623][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.051623][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.051623][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.051623][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.051623][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2252.051623][ T254] [ 2252.053350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2252.053350][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2252.053350][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2252.053350][ T254] ipv6_find_idev+0x102/0x170 [ 2252.053350][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2252.053350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2252.053350][ T254] netlink_rcv_skb+0x130/0x360 [ 2252.053350][ T254] netlink_unicast+0x449/0x710 [ 2252.053350][ T254] netlink_sendmsg+0x723/0xbe0 [ 2252.053350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2252.053350][ T254] ___sys_sendmsg+0xee/0x170 [ 2252.053350][ T254] __sys_sendmsg+0xcd/0x170 [ 2252.053350][ T254] do_syscall_64+0xc6/0x1e0 [ 2252.053350][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2252.053350][ T254] [ 2262.119891][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2262.120418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.120418][ T254] dst_init+0x84/0x4a0 [ 2262.120418][ T254] dst_alloc+0x97/0x150 [ 2262.120418][ T254] ip6_dst_alloc+0x23/0x90 [ 2262.120418][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2262.120418][ T254] ip6_pol_route+0x56f/0x840 [ 2262.120418][ T254] fib6_rule_lookup+0x334/0x630 [ 2262.120418][ T254] ip6_route_output_flags+0x259/0x480 [ 2262.120418][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2262.120418][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2262.120418][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.120418][ T254] netlink_unicast+0x449/0x710 [ 2262.120418][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.120418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.120418][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.120418][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.120418][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.120418][ T254] [ 2262.122577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.122577][ T254] netdev_get_by_index+0x5e/0x80 [ 2262.122577][ T254] fib6_nh_init+0x3d8/0x1580 [ 2262.122577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2262.122577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2262.122577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2262.122577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2262.122577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2262.122577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2262.122577][ T254] addrconf_dad_begin+0x310/0x670 [ 2262.122577][ T254] addrconf_dad_work+0x10b/0xab0 [ 2262.122577][ T254] process_one_work+0x84d/0x18a0 [ 2262.122577][ T254] worker_thread+0x587/0xd30 [ 2262.122577][ T254] kthread+0x28a/0x350 [ 2262.122577][ T254] ret_from_fork+0x31/0x70 [ 2262.122577][ T254] ret_from_fork_asm+0x1a/0x30 [ 2262.122577][ T254] [ 2262.124669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.124669][ T254] netdev_get_by_index+0x5e/0x80 [ 2262.124669][ T254] fib6_nh_init+0x3d8/0x1580 [ 2262.124669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2262.124669][ T254] ip6_route_add+0x1c/0x140 [ 2262.124669][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2262.124669][ T254] inet6_addr_add+0x4f8/0xa40 [ 2262.124669][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2262.124669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2262.124669][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.124669][ T254] netlink_unicast+0x449/0x710 [ 2262.124669][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.124669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.124669][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.124669][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.124669][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.124669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2262.124669][ T254] [ 2262.126998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.126998][ T254] netdev_get_by_index+0x5e/0x80 [ 2262.126998][ T254] fib6_nh_init+0x3d8/0x1580 [ 2262.126998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2262.126998][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2262.126998][ T254] ipv6_add_addr+0x411/0x2000 [ 2262.126998][ T254] inet6_addr_add+0x30e/0xa40 [ 2262.126998][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2262.126998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2262.126998][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.126998][ T254] netlink_unicast+0x449/0x710 [ 2262.126998][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.126998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.126998][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.126998][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.126998][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.126998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2262.126998][ T254] [ 2262.129229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.129229][ T254] netdev_get_by_index+0x5e/0x80 [ 2262.129229][ T254] fib6_nh_init+0x3d8/0x1580 [ 2262.129229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2262.129229][ T254] ip6_route_add+0x1c/0x140 [ 2262.129229][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2262.129229][ T254] addrconf_add_dev+0xe2/0x170 [ 2262.129229][ T254] inet6_addr_add+0x12f/0xa40 [ 2262.129229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2262.129229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2262.129229][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.129229][ T254] netlink_unicast+0x449/0x710 [ 2262.129229][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.129229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.129229][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.129229][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.129229][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.129229][ T254] [ 2262.131438][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.131438][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2262.131438][ T254] ipv6_find_idev+0x102/0x170 [ 2262.131438][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2262.131438][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2262.131438][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.131438][ T254] netlink_unicast+0x449/0x710 [ 2262.131438][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.131438][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.131438][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.131438][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.131438][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.131438][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2262.131438][ T254] [ 2262.133178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2262.133178][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2262.133178][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2262.133178][ T254] ipv6_find_idev+0x102/0x170 [ 2262.133178][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2262.133178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2262.133178][ T254] netlink_rcv_skb+0x130/0x360 [ 2262.133178][ T254] netlink_unicast+0x449/0x710 [ 2262.133178][ T254] netlink_sendmsg+0x723/0xbe0 [ 2262.133178][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2262.133178][ T254] ___sys_sendmsg+0xee/0x170 [ 2262.133178][ T254] __sys_sendmsg+0xcd/0x170 [ 2262.133178][ T254] do_syscall_64+0xc6/0x1e0 [ 2262.133178][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2262.133178][ T254] [ 2272.263960][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2272.264726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.264726][ T254] dst_init+0x84/0x4a0 [ 2272.264726][ T254] dst_alloc+0x97/0x150 [ 2272.264726][ T254] ip6_dst_alloc+0x23/0x90 [ 2272.264726][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2272.264726][ T254] ip6_pol_route+0x56f/0x840 [ 2272.264726][ T254] fib6_rule_lookup+0x334/0x630 [ 2272.264726][ T254] ip6_route_output_flags+0x259/0x480 [ 2272.264726][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2272.264726][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2272.264726][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.264726][ T254] netlink_unicast+0x449/0x710 [ 2272.264726][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.264726][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.264726][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.264726][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.264726][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.264726][ T254] [ 2272.266962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.266962][ T254] netdev_get_by_index+0x5e/0x80 [ 2272.266962][ T254] fib6_nh_init+0x3d8/0x1580 [ 2272.266962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2272.266962][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2272.266962][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2272.266962][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2272.266962][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2272.266962][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2272.266962][ T254] addrconf_dad_begin+0x310/0x670 [ 2272.266962][ T254] addrconf_dad_work+0x10b/0xab0 [ 2272.266962][ T254] process_one_work+0x84d/0x18a0 [ 2272.266962][ T254] worker_thread+0x587/0xd30 [ 2272.266962][ T254] kthread+0x28a/0x350 [ 2272.266962][ T254] ret_from_fork+0x31/0x70 [ 2272.266962][ T254] ret_from_fork_asm+0x1a/0x30 [ 2272.266962][ T254] [ 2272.269113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.269113][ T254] netdev_get_by_index+0x5e/0x80 [ 2272.269113][ T254] fib6_nh_init+0x3d8/0x1580 [ 2272.269113][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2272.269113][ T254] ip6_route_add+0x1c/0x140 [ 2272.269113][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2272.269113][ T254] inet6_addr_add+0x4f8/0xa40 [ 2272.269113][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2272.269113][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2272.269113][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.269113][ T254] netlink_unicast+0x449/0x710 [ 2272.269113][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.269113][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.269113][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.269113][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.269113][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.269113][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2272.269113][ T254] [ 2272.271311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.271311][ T254] netdev_get_by_index+0x5e/0x80 [ 2272.271311][ T254] fib6_nh_init+0x3d8/0x1580 [ 2272.271311][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2272.271311][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2272.271311][ T254] ipv6_add_addr+0x411/0x2000 [ 2272.271311][ T254] inet6_addr_add+0x30e/0xa40 [ 2272.271311][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2272.271311][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2272.271311][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.271311][ T254] netlink_unicast+0x449/0x710 [ 2272.271311][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.271311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.271311][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.271311][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.271311][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.271311][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2272.271311][ T254] [ 2272.273549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.273549][ T254] netdev_get_by_index+0x5e/0x80 [ 2272.273549][ T254] fib6_nh_init+0x3d8/0x1580 [ 2272.273549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2272.273549][ T254] ip6_route_add+0x1c/0x140 [ 2272.273549][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2272.273549][ T254] addrconf_add_dev+0xe2/0x170 [ 2272.273549][ T254] inet6_addr_add+0x12f/0xa40 [ 2272.273549][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2272.273549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2272.273549][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.273549][ T254] netlink_unicast+0x449/0x710 [ 2272.273549][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.273549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.273549][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.273549][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.273549][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.273549][ T254] [ 2272.275733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.275733][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2272.275733][ T254] ipv6_find_idev+0x102/0x170 [ 2272.275733][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2272.275733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2272.275733][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.275733][ T254] netlink_unicast+0x449/0x710 [ 2272.275733][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.275733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.275733][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.275733][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.275733][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.275733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2272.275733][ T254] [ 2272.277477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2272.277477][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2272.277477][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2272.277477][ T254] ipv6_find_idev+0x102/0x170 [ 2272.277477][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2272.277477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2272.277477][ T254] netlink_rcv_skb+0x130/0x360 [ 2272.277477][ T254] netlink_unicast+0x449/0x710 [ 2272.277477][ T254] netlink_sendmsg+0x723/0xbe0 [ 2272.277477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2272.277477][ T254] ___sys_sendmsg+0xee/0x170 [ 2272.277477][ T254] __sys_sendmsg+0xcd/0x170 [ 2272.277477][ T254] do_syscall_64+0xc6/0x1e0 [ 2272.277477][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2272.277477][ T254] [ 2282.399934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2282.400570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.400570][ T254] dst_init+0x84/0x4a0 [ 2282.400570][ T254] dst_alloc+0x97/0x150 [ 2282.400570][ T254] ip6_dst_alloc+0x23/0x90 [ 2282.400570][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2282.400570][ T254] ip6_pol_route+0x56f/0x840 [ 2282.400570][ T254] fib6_rule_lookup+0x334/0x630 [ 2282.400570][ T254] ip6_route_output_flags+0x259/0x480 [ 2282.400570][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2282.400570][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2282.400570][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.400570][ T254] netlink_unicast+0x449/0x710 [ 2282.400570][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.400570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.400570][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.400570][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.400570][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.400570][ T254] [ 2282.402728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.402728][ T254] netdev_get_by_index+0x5e/0x80 [ 2282.402728][ T254] fib6_nh_init+0x3d8/0x1580 [ 2282.402728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2282.402728][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2282.402728][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2282.402728][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2282.402728][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2282.402728][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2282.402728][ T254] addrconf_dad_begin+0x310/0x670 [ 2282.402728][ T254] addrconf_dad_work+0x10b/0xab0 [ 2282.402728][ T254] process_one_work+0x84d/0x18a0 [ 2282.402728][ T254] worker_thread+0x587/0xd30 [ 2282.402728][ T254] kthread+0x28a/0x350 [ 2282.402728][ T254] ret_from_fork+0x31/0x70 [ 2282.402728][ T254] ret_from_fork_asm+0x1a/0x30 [ 2282.402728][ T254] [ 2282.405409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.405409][ T254] netdev_get_by_index+0x5e/0x80 [ 2282.405409][ T254] fib6_nh_init+0x3d8/0x1580 [ 2282.405409][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2282.405409][ T254] ip6_route_add+0x1c/0x140 [ 2282.405409][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2282.405409][ T254] inet6_addr_add+0x4f8/0xa40 [ 2282.405409][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.405409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.405409][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.405409][ T254] netlink_unicast+0x449/0x710 [ 2282.405409][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.405409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.405409][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.405409][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.405409][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.405409][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.405409][ T254] [ 2282.407662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.407662][ T254] netdev_get_by_index+0x5e/0x80 [ 2282.407662][ T254] fib6_nh_init+0x3d8/0x1580 [ 2282.407662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2282.407662][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2282.407662][ T254] ipv6_add_addr+0x411/0x2000 [ 2282.407662][ T254] inet6_addr_add+0x30e/0xa40 [ 2282.407662][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.407662][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.407662][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.407662][ T254] netlink_unicast+0x449/0x710 [ 2282.407662][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.407662][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.407662][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.407662][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.407662][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.407662][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.407662][ T254] [ 2282.409888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.409888][ T254] netdev_get_by_index+0x5e/0x80 [ 2282.409888][ T254] fib6_nh_init+0x3d8/0x1580 [ 2282.409888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2282.409888][ T254] ip6_route_add+0x1c/0x140 [ 2282.409888][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2282.409888][ T254] addrconf_add_dev+0xe2/0x170 [ 2282.409888][ T254] inet6_addr_add+0x12f/0xa40 [ 2282.409888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2282.409888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.409888][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.409888][ T254] netlink_unicast+0x449/0x710 [ 2282.409888][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.409888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.409888][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.409888][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.409888][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.409888][ T254] [ 2282.412089][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.412089][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2282.412089][ T254] ipv6_find_idev+0x102/0x170 [ 2282.412089][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.412089][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.412089][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.412089][ T254] netlink_unicast+0x449/0x710 [ 2282.412089][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.412089][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.412089][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.412089][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.412089][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.412089][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.412089][ T254] [ 2282.413835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2282.413835][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2282.413835][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2282.413835][ T254] ipv6_find_idev+0x102/0x170 [ 2282.413835][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2282.413835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2282.413835][ T254] netlink_rcv_skb+0x130/0x360 [ 2282.413835][ T254] netlink_unicast+0x449/0x710 [ 2282.413835][ T254] netlink_sendmsg+0x723/0xbe0 [ 2282.413835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2282.413835][ T254] ___sys_sendmsg+0xee/0x170 [ 2282.413835][ T254] __sys_sendmsg+0xcd/0x170 [ 2282.413835][ T254] do_syscall_64+0xc6/0x1e0 [ 2282.413835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2282.413835][ T254] [ 2292.655931][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2292.656569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.656569][ T254] dst_init+0x84/0x4a0 [ 2292.656569][ T254] dst_alloc+0x97/0x150 [ 2292.656569][ T254] ip6_dst_alloc+0x23/0x90 [ 2292.656569][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2292.656569][ T254] ip6_pol_route+0x56f/0x840 [ 2292.656569][ T254] fib6_rule_lookup+0x334/0x630 [ 2292.656569][ T254] ip6_route_output_flags+0x259/0x480 [ 2292.656569][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2292.656569][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2292.656569][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.656569][ T254] netlink_unicast+0x449/0x710 [ 2292.656569][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.656569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.656569][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.656569][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.656569][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.656569][ T254] [ 2292.659203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.659203][ T254] netdev_get_by_index+0x5e/0x80 [ 2292.659203][ T254] fib6_nh_init+0x3d8/0x1580 [ 2292.659203][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2292.659203][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2292.659203][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2292.659203][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2292.659203][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2292.659203][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2292.659203][ T254] addrconf_dad_begin+0x310/0x670 [ 2292.659203][ T254] addrconf_dad_work+0x10b/0xab0 [ 2292.659203][ T254] process_one_work+0x84d/0x18a0 [ 2292.659203][ T254] worker_thread+0x587/0xd30 [ 2292.659203][ T254] kthread+0x28a/0x350 [ 2292.659203][ T254] ret_from_fork+0x31/0x70 [ 2292.659203][ T254] ret_from_fork_asm+0x1a/0x30 [ 2292.659203][ T254] [ 2292.661301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.661301][ T254] netdev_get_by_index+0x5e/0x80 [ 2292.661301][ T254] fib6_nh_init+0x3d8/0x1580 [ 2292.661301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2292.661301][ T254] ip6_route_add+0x1c/0x140 [ 2292.661301][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2292.661301][ T254] inet6_addr_add+0x4f8/0xa40 [ 2292.661301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.661301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.661301][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.661301][ T254] netlink_unicast+0x449/0x710 [ 2292.661301][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.661301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.661301][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.661301][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.661301][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.661301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.661301][ T254] [ 2292.663482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.663482][ T254] netdev_get_by_index+0x5e/0x80 [ 2292.663482][ T254] fib6_nh_init+0x3d8/0x1580 [ 2292.663482][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2292.663482][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2292.663482][ T254] ipv6_add_addr+0x411/0x2000 [ 2292.663482][ T254] inet6_addr_add+0x30e/0xa40 [ 2292.663482][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.663482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.663482][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.663482][ T254] netlink_unicast+0x449/0x710 [ 2292.663482][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.663482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.663482][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.663482][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.663482][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.663482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.663482][ T254] [ 2292.665709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.665709][ T254] netdev_get_by_index+0x5e/0x80 [ 2292.665709][ T254] fib6_nh_init+0x3d8/0x1580 [ 2292.665709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2292.665709][ T254] ip6_route_add+0x1c/0x140 [ 2292.665709][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2292.665709][ T254] addrconf_add_dev+0xe2/0x170 [ 2292.665709][ T254] inet6_addr_add+0x12f/0xa40 [ 2292.665709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2292.665709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.665709][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.665709][ T254] netlink_unicast+0x449/0x710 [ 2292.665709][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.665709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.665709][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.665709][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.665709][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.665709][ T254] [ 2292.667904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.667904][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2292.667904][ T254] ipv6_find_idev+0x102/0x170 [ 2292.667904][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.667904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.667904][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.667904][ T254] netlink_unicast+0x449/0x710 [ 2292.667904][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.667904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.667904][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.667904][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.667904][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.667904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.667904][ T254] [ 2292.669584][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2292.669584][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2292.669584][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2292.669584][ T254] ipv6_find_idev+0x102/0x170 [ 2292.669584][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2292.669584][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2292.669584][ T254] netlink_rcv_skb+0x130/0x360 [ 2292.669584][ T254] netlink_unicast+0x449/0x710 [ 2292.669584][ T254] netlink_sendmsg+0x723/0xbe0 [ 2292.669584][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2292.669584][ T254] ___sys_sendmsg+0xee/0x170 [ 2292.669584][ T254] __sys_sendmsg+0xcd/0x170 [ 2292.669584][ T254] do_syscall_64+0xc6/0x1e0 [ 2292.669584][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2292.669584][ T254] [ 2302.911927][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2302.912518][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.912518][ T254] dst_init+0x84/0x4a0 [ 2302.912518][ T254] dst_alloc+0x97/0x150 [ 2302.912518][ T254] ip6_dst_alloc+0x23/0x90 [ 2302.912518][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2302.912518][ T254] ip6_pol_route+0x56f/0x840 [ 2302.912518][ T254] fib6_rule_lookup+0x334/0x630 [ 2302.912518][ T254] ip6_route_output_flags+0x259/0x480 [ 2302.912518][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2302.912518][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2302.912518][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.912518][ T254] netlink_unicast+0x449/0x710 [ 2302.912518][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.912518][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.912518][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.912518][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.912518][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.912518][ T254] [ 2302.914674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.914674][ T254] netdev_get_by_index+0x5e/0x80 [ 2302.914674][ T254] fib6_nh_init+0x3d8/0x1580 [ 2302.914674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2302.914674][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2302.914674][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2302.914674][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2302.914674][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2302.914674][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2302.914674][ T254] addrconf_dad_begin+0x310/0x670 [ 2302.914674][ T254] addrconf_dad_work+0x10b/0xab0 [ 2302.914674][ T254] process_one_work+0x84d/0x18a0 [ 2302.914674][ T254] worker_thread+0x587/0xd30 [ 2302.914674][ T254] kthread+0x28a/0x350 [ 2302.914674][ T254] ret_from_fork+0x31/0x70 [ 2302.914674][ T254] ret_from_fork_asm+0x1a/0x30 [ 2302.914674][ T254] [ 2302.916787][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.916787][ T254] netdev_get_by_index+0x5e/0x80 [ 2302.916787][ T254] fib6_nh_init+0x3d8/0x1580 [ 2302.916787][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2302.916787][ T254] ip6_route_add+0x1c/0x140 [ 2302.916787][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2302.916787][ T254] inet6_addr_add+0x4f8/0xa40 [ 2302.916787][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.916787][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.916787][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.916787][ T254] netlink_unicast+0x449/0x710 [ 2302.916787][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.916787][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.916787][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.916787][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.916787][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.916787][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.916787][ T254] [ 2302.919000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.919000][ T254] netdev_get_by_index+0x5e/0x80 [ 2302.919000][ T254] fib6_nh_init+0x3d8/0x1580 [ 2302.919000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2302.919000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2302.919000][ T254] ipv6_add_addr+0x411/0x2000 [ 2302.919000][ T254] inet6_addr_add+0x30e/0xa40 [ 2302.919000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.919000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.919000][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.919000][ T254] netlink_unicast+0x449/0x710 [ 2302.919000][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.919000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.919000][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.919000][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.919000][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.919000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.919000][ T254] [ 2302.921228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.921228][ T254] netdev_get_by_index+0x5e/0x80 [ 2302.921228][ T254] fib6_nh_init+0x3d8/0x1580 [ 2302.921228][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2302.921228][ T254] ip6_route_add+0x1c/0x140 [ 2302.921228][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2302.921228][ T254] addrconf_add_dev+0xe2/0x170 [ 2302.921228][ T254] inet6_addr_add+0x12f/0xa40 [ 2302.921228][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2302.921228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.921228][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.921228][ T254] netlink_unicast+0x449/0x710 [ 2302.921228][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.921228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.921228][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.921228][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.921228][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.921228][ T254] [ 2302.923372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.923372][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2302.923372][ T254] ipv6_find_idev+0x102/0x170 [ 2302.923372][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.923372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.923372][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.923372][ T254] netlink_unicast+0x449/0x710 [ 2302.923372][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.923372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.923372][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.923372][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.923372][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.923372][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.923372][ T254] [ 2302.925112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2302.925112][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2302.925112][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2302.925112][ T254] ipv6_find_idev+0x102/0x170 [ 2302.925112][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2302.925112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2302.925112][ T254] netlink_rcv_skb+0x130/0x360 [ 2302.925112][ T254] netlink_unicast+0x449/0x710 [ 2302.925112][ T254] netlink_sendmsg+0x723/0xbe0 [ 2302.925112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2302.925112][ T254] ___sys_sendmsg+0xee/0x170 [ 2302.925112][ T254] __sys_sendmsg+0xcd/0x170 [ 2302.925112][ T254] do_syscall_64+0xc6/0x1e0 [ 2302.925112][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2302.925112][ T254] [ 2313.031808][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2313.032327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.032327][ T254] dst_init+0x84/0x4a0 [ 2313.032327][ T254] dst_alloc+0x97/0x150 [ 2313.032327][ T254] ip6_dst_alloc+0x23/0x90 [ 2313.032327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2313.032327][ T254] ip6_pol_route+0x56f/0x840 [ 2313.032327][ T254] fib6_rule_lookup+0x334/0x630 [ 2313.032327][ T254] ip6_route_output_flags+0x259/0x480 [ 2313.032327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2313.032327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2313.032327][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.032327][ T254] netlink_unicast+0x449/0x710 [ 2313.032327][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.032327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.032327][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.032327][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.032327][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.032327][ T254] [ 2313.034533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.034533][ T254] netdev_get_by_index+0x5e/0x80 [ 2313.034533][ T254] fib6_nh_init+0x3d8/0x1580 [ 2313.034533][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2313.034533][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2313.034533][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2313.034533][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2313.034533][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2313.034533][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2313.034533][ T254] addrconf_dad_begin+0x310/0x670 [ 2313.034533][ T254] addrconf_dad_work+0x10b/0xab0 [ 2313.034533][ T254] process_one_work+0x84d/0x18a0 [ 2313.034533][ T254] worker_thread+0x587/0xd30 [ 2313.034533][ T254] kthread+0x28a/0x350 [ 2313.034533][ T254] ret_from_fork+0x31/0x70 [ 2313.034533][ T254] ret_from_fork_asm+0x1a/0x30 [ 2313.034533][ T254] [ 2313.036684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.036684][ T254] netdev_get_by_index+0x5e/0x80 [ 2313.036684][ T254] fib6_nh_init+0x3d8/0x1580 [ 2313.036684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2313.036684][ T254] ip6_route_add+0x1c/0x140 [ 2313.036684][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2313.036684][ T254] inet6_addr_add+0x4f8/0xa40 [ 2313.036684][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2313.036684][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2313.036684][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.036684][ T254] netlink_unicast+0x449/0x710 [ 2313.036684][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.036684][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.036684][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.036684][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.036684][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.036684][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2313.036684][ T254] [ 2313.038943][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.038943][ T254] netdev_get_by_index+0x5e/0x80 [ 2313.038943][ T254] fib6_nh_init+0x3d8/0x1580 [ 2313.038943][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2313.038943][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2313.038943][ T254] ipv6_add_addr+0x411/0x2000 [ 2313.038943][ T254] inet6_addr_add+0x30e/0xa40 [ 2313.038943][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2313.038943][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2313.038943][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.038943][ T254] netlink_unicast+0x449/0x710 [ 2313.038943][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.038943][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.038943][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.038943][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.038943][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.038943][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2313.038943][ T254] [ 2313.041183][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.041183][ T254] netdev_get_by_index+0x5e/0x80 [ 2313.041183][ T254] fib6_nh_init+0x3d8/0x1580 [ 2313.041183][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2313.041183][ T254] ip6_route_add+0x1c/0x140 [ 2313.041183][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2313.041183][ T254] addrconf_add_dev+0xe2/0x170 [ 2313.041183][ T254] inet6_addr_add+0x12f/0xa40 [ 2313.041183][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2313.041183][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2313.041183][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.041183][ T254] netlink_unicast+0x449/0x710 [ 2313.041183][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.041183][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.041183][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.041183][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.041183][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.041183][ T254] [ 2313.043392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.043392][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2313.043392][ T254] ipv6_find_idev+0x102/0x170 [ 2313.043392][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2313.043392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2313.043392][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.043392][ T254] netlink_unicast+0x449/0x710 [ 2313.043392][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.043392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.043392][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.043392][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.043392][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.043392][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2313.043392][ T254] [ 2313.045121][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2313.045121][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2313.045121][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2313.045121][ T254] ipv6_find_idev+0x102/0x170 [ 2313.045121][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2313.045121][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2313.045121][ T254] netlink_rcv_skb+0x130/0x360 [ 2313.045121][ T254] netlink_unicast+0x449/0x710 [ 2313.045121][ T254] netlink_sendmsg+0x723/0xbe0 [ 2313.045121][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2313.045121][ T254] ___sys_sendmsg+0xee/0x170 [ 2313.045121][ T254] __sys_sendmsg+0xcd/0x170 [ 2313.045121][ T254] do_syscall_64+0xc6/0x1e0 [ 2313.045121][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2313.045121][ T254] [ 2323.295960][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2323.296580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.296580][ T254] dst_init+0x84/0x4a0 [ 2323.296580][ T254] dst_alloc+0x97/0x150 [ 2323.296580][ T254] ip6_dst_alloc+0x23/0x90 [ 2323.296580][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2323.296580][ T254] ip6_pol_route+0x56f/0x840 [ 2323.296580][ T254] fib6_rule_lookup+0x334/0x630 [ 2323.296580][ T254] ip6_route_output_flags+0x259/0x480 [ 2323.296580][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2323.296580][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2323.296580][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.296580][ T254] netlink_unicast+0x449/0x710 [ 2323.296580][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.296580][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.296580][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.296580][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.296580][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.296580][ T254] [ 2323.298744][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.298744][ T254] netdev_get_by_index+0x5e/0x80 [ 2323.298744][ T254] fib6_nh_init+0x3d8/0x1580 [ 2323.298744][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2323.298744][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2323.298744][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2323.298744][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2323.298744][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2323.298744][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2323.298744][ T254] addrconf_dad_begin+0x310/0x670 [ 2323.298744][ T254] addrconf_dad_work+0x10b/0xab0 [ 2323.298744][ T254] process_one_work+0x84d/0x18a0 [ 2323.298744][ T254] worker_thread+0x587/0xd30 [ 2323.298744][ T254] kthread+0x28a/0x350 [ 2323.298744][ T254] ret_from_fork+0x31/0x70 [ 2323.298744][ T254] ret_from_fork_asm+0x1a/0x30 [ 2323.298744][ T254] [ 2323.300845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.300845][ T254] netdev_get_by_index+0x5e/0x80 [ 2323.300845][ T254] fib6_nh_init+0x3d8/0x1580 [ 2323.300845][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2323.300845][ T254] ip6_route_add+0x1c/0x140 [ 2323.300845][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2323.300845][ T254] inet6_addr_add+0x4f8/0xa40 [ 2323.300845][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2323.300845][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2323.300845][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.300845][ T254] netlink_unicast+0x449/0x710 [ 2323.300845][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.300845][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.300845][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.300845][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.300845][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.300845][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2323.300845][ T254] [ 2323.303083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.303083][ T254] netdev_get_by_index+0x5e/0x80 [ 2323.303083][ T254] fib6_nh_init+0x3d8/0x1580 [ 2323.303083][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2323.303083][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2323.303083][ T254] ipv6_add_addr+0x411/0x2000 [ 2323.303083][ T254] inet6_addr_add+0x30e/0xa40 [ 2323.303083][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2323.303083][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2323.303083][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.303083][ T254] netlink_unicast+0x449/0x710 [ 2323.303083][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.303083][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.303083][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.303083][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.303083][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.303083][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2323.303083][ T254] [ 2323.305343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.305343][ T254] netdev_get_by_index+0x5e/0x80 [ 2323.305343][ T254] fib6_nh_init+0x3d8/0x1580 [ 2323.305343][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2323.305343][ T254] ip6_route_add+0x1c/0x140 [ 2323.305343][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2323.305343][ T254] addrconf_add_dev+0xe2/0x170 [ 2323.305343][ T254] inet6_addr_add+0x12f/0xa40 [ 2323.305343][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2323.305343][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2323.305343][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.305343][ T254] netlink_unicast+0x449/0x710 [ 2323.305343][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.305343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.305343][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.305343][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.305343][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.305343][ T254] [ 2323.307565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.307565][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2323.307565][ T254] ipv6_find_idev+0x102/0x170 [ 2323.307565][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2323.307565][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2323.307565][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.307565][ T254] netlink_unicast+0x449/0x710 [ 2323.307565][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.307565][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.307565][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.307565][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.307565][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.307565][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2323.307565][ T254] [ 2323.309260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2323.309260][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2323.309260][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2323.309260][ T254] ipv6_find_idev+0x102/0x170 [ 2323.309260][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2323.309260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2323.309260][ T254] netlink_rcv_skb+0x130/0x360 [ 2323.309260][ T254] netlink_unicast+0x449/0x710 [ 2323.309260][ T254] netlink_sendmsg+0x723/0xbe0 [ 2323.309260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2323.309260][ T254] ___sys_sendmsg+0xee/0x170 [ 2323.309260][ T254] __sys_sendmsg+0xcd/0x170 [ 2323.309260][ T254] do_syscall_64+0xc6/0x1e0 [ 2323.309260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2323.309260][ T254] [ 2333.383911][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2333.384571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.384571][ T254] dst_init+0x84/0x4a0 [ 2333.384571][ T254] dst_alloc+0x97/0x150 [ 2333.384571][ T254] ip6_dst_alloc+0x23/0x90 [ 2333.384571][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2333.384571][ T254] ip6_pol_route+0x56f/0x840 [ 2333.384571][ T254] fib6_rule_lookup+0x334/0x630 [ 2333.384571][ T254] ip6_route_output_flags+0x259/0x480 [ 2333.384571][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2333.384571][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2333.384571][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.384571][ T254] netlink_unicast+0x449/0x710 [ 2333.384571][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.384571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.384571][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.384571][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.384571][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.384571][ T254] [ 2333.386803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.386803][ T254] netdev_get_by_index+0x5e/0x80 [ 2333.386803][ T254] fib6_nh_init+0x3d8/0x1580 [ 2333.386803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2333.386803][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2333.386803][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2333.386803][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2333.386803][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2333.386803][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2333.386803][ T254] addrconf_dad_begin+0x310/0x670 [ 2333.386803][ T254] addrconf_dad_work+0x10b/0xab0 [ 2333.386803][ T254] process_one_work+0x84d/0x18a0 [ 2333.386803][ T254] worker_thread+0x587/0xd30 [ 2333.386803][ T254] kthread+0x28a/0x350 [ 2333.386803][ T254] ret_from_fork+0x31/0x70 [ 2333.386803][ T254] ret_from_fork_asm+0x1a/0x30 [ 2333.386803][ T254] [ 2333.388905][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.388905][ T254] netdev_get_by_index+0x5e/0x80 [ 2333.388905][ T254] fib6_nh_init+0x3d8/0x1580 [ 2333.388905][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2333.388905][ T254] ip6_route_add+0x1c/0x140 [ 2333.388905][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2333.388905][ T254] inet6_addr_add+0x4f8/0xa40 [ 2333.388905][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.388905][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.388905][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.388905][ T254] netlink_unicast+0x449/0x710 [ 2333.388905][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.388905][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.388905][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.388905][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.388905][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.388905][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.388905][ T254] [ 2333.391147][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.391147][ T254] netdev_get_by_index+0x5e/0x80 [ 2333.391147][ T254] fib6_nh_init+0x3d8/0x1580 [ 2333.391147][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2333.391147][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2333.391147][ T254] ipv6_add_addr+0x411/0x2000 [ 2333.391147][ T254] inet6_addr_add+0x30e/0xa40 [ 2333.391147][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.391147][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.391147][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.391147][ T254] netlink_unicast+0x449/0x710 [ 2333.391147][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.391147][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.391147][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.391147][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.391147][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.391147][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.391147][ T254] [ 2333.393403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.393403][ T254] netdev_get_by_index+0x5e/0x80 [ 2333.393403][ T254] fib6_nh_init+0x3d8/0x1580 [ 2333.393403][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2333.393403][ T254] ip6_route_add+0x1c/0x140 [ 2333.393403][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2333.393403][ T254] addrconf_add_dev+0xe2/0x170 [ 2333.393403][ T254] inet6_addr_add+0x12f/0xa40 [ 2333.393403][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2333.393403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.393403][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.393403][ T254] netlink_unicast+0x449/0x710 [ 2333.393403][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.393403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.393403][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.393403][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.393403][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.393403][ T254] [ 2333.395714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.395714][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2333.395714][ T254] ipv6_find_idev+0x102/0x170 [ 2333.395714][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.395714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.395714][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.395714][ T254] netlink_unicast+0x449/0x710 [ 2333.395714][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.395714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.395714][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.395714][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.395714][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.395714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.395714][ T254] [ 2333.397480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2333.397480][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2333.397480][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2333.397480][ T254] ipv6_find_idev+0x102/0x170 [ 2333.397480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2333.397480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2333.397480][ T254] netlink_rcv_skb+0x130/0x360 [ 2333.397480][ T254] netlink_unicast+0x449/0x710 [ 2333.397480][ T254] netlink_sendmsg+0x723/0xbe0 [ 2333.397480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2333.397480][ T254] ___sys_sendmsg+0xee/0x170 [ 2333.397480][ T254] __sys_sendmsg+0xcd/0x170 [ 2333.397480][ T254] do_syscall_64+0xc6/0x1e0 [ 2333.397480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2333.397480][ T254] [ 2343.399910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2343.401125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.401125][ T254] dst_init+0x84/0x4a0 [ 2343.401125][ T254] dst_alloc+0x97/0x150 [ 2343.401125][ T254] ip6_dst_alloc+0x23/0x90 [ 2343.401125][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2343.401125][ T254] ip6_pol_route+0x56f/0x840 [ 2343.401125][ T254] fib6_rule_lookup+0x334/0x630 [ 2343.401125][ T254] ip6_route_output_flags+0x259/0x480 [ 2343.401125][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2343.401125][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2343.401125][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.401125][ T254] netlink_unicast+0x449/0x710 [ 2343.401125][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.401125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.401125][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.401125][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.401125][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.401125][ T254] [ 2343.403414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.403414][ T254] netdev_get_by_index+0x5e/0x80 [ 2343.403414][ T254] fib6_nh_init+0x3d8/0x1580 [ 2343.403414][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2343.403414][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2343.403414][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2343.403414][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2343.403414][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2343.403414][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2343.403414][ T254] addrconf_dad_begin+0x310/0x670 [ 2343.403414][ T254] addrconf_dad_work+0x10b/0xab0 [ 2343.403414][ T254] process_one_work+0x84d/0x18a0 [ 2343.403414][ T254] worker_thread+0x587/0xd30 [ 2343.403414][ T254] kthread+0x28a/0x350 [ 2343.403414][ T254] ret_from_fork+0x31/0x70 [ 2343.403414][ T254] ret_from_fork_asm+0x1a/0x30 [ 2343.403414][ T254] [ 2343.405616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.405616][ T254] netdev_get_by_index+0x5e/0x80 [ 2343.405616][ T254] fib6_nh_init+0x3d8/0x1580 [ 2343.405616][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2343.405616][ T254] ip6_route_add+0x1c/0x140 [ 2343.405616][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2343.405616][ T254] inet6_addr_add+0x4f8/0xa40 [ 2343.405616][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.405616][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.405616][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.405616][ T254] netlink_unicast+0x449/0x710 [ 2343.405616][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.405616][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.405616][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.405616][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.405616][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.405616][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.405616][ T254] [ 2343.407925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.407925][ T254] netdev_get_by_index+0x5e/0x80 [ 2343.407925][ T254] fib6_nh_init+0x3d8/0x1580 [ 2343.407925][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2343.407925][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2343.407925][ T254] ipv6_add_addr+0x411/0x2000 [ 2343.407925][ T254] inet6_addr_add+0x30e/0xa40 [ 2343.407925][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.407925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.407925][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.407925][ T254] netlink_unicast+0x449/0x710 [ 2343.407925][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.407925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.407925][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.407925][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.407925][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.407925][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.407925][ T254] [ 2343.410229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.410229][ T254] netdev_get_by_index+0x5e/0x80 [ 2343.410229][ T254] fib6_nh_init+0x3d8/0x1580 [ 2343.410229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2343.410229][ T254] ip6_route_add+0x1c/0x140 [ 2343.410229][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2343.410229][ T254] addrconf_add_dev+0xe2/0x170 [ 2343.410229][ T254] inet6_addr_add+0x12f/0xa40 [ 2343.410229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2343.410229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.410229][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.410229][ T254] netlink_unicast+0x449/0x710 [ 2343.410229][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.410229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.410229][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.410229][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.410229][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.410229][ T254] [ 2343.412457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.412457][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2343.412457][ T254] ipv6_find_idev+0x102/0x170 [ 2343.412457][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.412457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.412457][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.412457][ T254] netlink_unicast+0x449/0x710 [ 2343.412457][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.412457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.412457][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.412457][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.412457][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.412457][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.412457][ T254] [ 2343.414189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2343.414189][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2343.414189][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2343.414189][ T254] ipv6_find_idev+0x102/0x170 [ 2343.414189][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2343.414189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2343.414189][ T254] netlink_rcv_skb+0x130/0x360 [ 2343.414189][ T254] netlink_unicast+0x449/0x710 [ 2343.414189][ T254] netlink_sendmsg+0x723/0xbe0 [ 2343.414189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2343.414189][ T254] ___sys_sendmsg+0xee/0x170 [ 2343.414189][ T254] __sys_sendmsg+0xcd/0x170 [ 2343.414189][ T254] do_syscall_64+0xc6/0x1e0 [ 2343.414189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2343.414189][ T254] [ 2353.655906][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2353.656528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.656528][ T254] dst_init+0x84/0x4a0 [ 2353.656528][ T254] dst_alloc+0x97/0x150 [ 2353.656528][ T254] ip6_dst_alloc+0x23/0x90 [ 2353.656528][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2353.656528][ T254] ip6_pol_route+0x56f/0x840 [ 2353.656528][ T254] fib6_rule_lookup+0x334/0x630 [ 2353.656528][ T254] ip6_route_output_flags+0x259/0x480 [ 2353.656528][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2353.656528][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2353.656528][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.656528][ T254] netlink_unicast+0x449/0x710 [ 2353.656528][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.656528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.656528][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.656528][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.656528][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.656528][ T254] [ 2353.658702][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.658702][ T254] netdev_get_by_index+0x5e/0x80 [ 2353.658702][ T254] fib6_nh_init+0x3d8/0x1580 [ 2353.658702][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2353.658702][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2353.658702][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2353.658702][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2353.658702][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2353.658702][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2353.658702][ T254] addrconf_dad_begin+0x310/0x670 [ 2353.658702][ T254] addrconf_dad_work+0x10b/0xab0 [ 2353.658702][ T254] process_one_work+0x84d/0x18a0 [ 2353.658702][ T254] worker_thread+0x587/0xd30 [ 2353.658702][ T254] kthread+0x28a/0x350 [ 2353.658702][ T254] ret_from_fork+0x31/0x70 [ 2353.658702][ T254] ret_from_fork_asm+0x1a/0x30 [ 2353.658702][ T254] [ 2353.660803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.660803][ T254] netdev_get_by_index+0x5e/0x80 [ 2353.660803][ T254] fib6_nh_init+0x3d8/0x1580 [ 2353.660803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2353.660803][ T254] ip6_route_add+0x1c/0x140 [ 2353.660803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2353.660803][ T254] inet6_addr_add+0x4f8/0xa40 [ 2353.660803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.660803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.660803][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.660803][ T254] netlink_unicast+0x449/0x710 [ 2353.660803][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.660803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.660803][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.660803][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.660803][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.660803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.660803][ T254] [ 2353.663000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.663000][ T254] netdev_get_by_index+0x5e/0x80 [ 2353.663000][ T254] fib6_nh_init+0x3d8/0x1580 [ 2353.663000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2353.663000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2353.663000][ T254] ipv6_add_addr+0x411/0x2000 [ 2353.663000][ T254] inet6_addr_add+0x30e/0xa40 [ 2353.663000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.663000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.663000][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.663000][ T254] netlink_unicast+0x449/0x710 [ 2353.663000][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.663000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.663000][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.663000][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.663000][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.663000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.663000][ T254] [ 2353.665188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.665188][ T254] netdev_get_by_index+0x5e/0x80 [ 2353.665188][ T254] fib6_nh_init+0x3d8/0x1580 [ 2353.665188][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2353.665188][ T254] ip6_route_add+0x1c/0x140 [ 2353.665188][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2353.665188][ T254] addrconf_add_dev+0xe2/0x170 [ 2353.665188][ T254] inet6_addr_add+0x12f/0xa40 [ 2353.665188][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2353.665188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.665188][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.665188][ T254] netlink_unicast+0x449/0x710 [ 2353.665188][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.665188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.665188][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.665188][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.665188][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.665188][ T254] [ 2353.667423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.667423][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2353.667423][ T254] ipv6_find_idev+0x102/0x170 [ 2353.667423][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.667423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.667423][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.667423][ T254] netlink_unicast+0x449/0x710 [ 2353.667423][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.667423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.667423][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.667423][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.667423][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.667423][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.667423][ T254] [ 2353.669127][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2353.669127][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2353.669127][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2353.669127][ T254] ipv6_find_idev+0x102/0x170 [ 2353.669127][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2353.669127][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2353.669127][ T254] netlink_rcv_skb+0x130/0x360 [ 2353.669127][ T254] netlink_unicast+0x449/0x710 [ 2353.669127][ T254] netlink_sendmsg+0x723/0xbe0 [ 2353.669127][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2353.669127][ T254] ___sys_sendmsg+0xee/0x170 [ 2353.669127][ T254] __sys_sendmsg+0xcd/0x170 [ 2353.669127][ T254] do_syscall_64+0xc6/0x1e0 [ 2353.669127][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2353.669127][ T254] [ 2363.911888][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2363.912419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.912419][ T254] dst_init+0x84/0x4a0 [ 2363.912419][ T254] dst_alloc+0x97/0x150 [ 2363.912419][ T254] ip6_dst_alloc+0x23/0x90 [ 2363.912419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2363.912419][ T254] ip6_pol_route+0x56f/0x840 [ 2363.912419][ T254] fib6_rule_lookup+0x334/0x630 [ 2363.912419][ T254] ip6_route_output_flags+0x259/0x480 [ 2363.912419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2363.912419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2363.912419][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.912419][ T254] netlink_unicast+0x449/0x710 [ 2363.912419][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.912419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.912419][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.912419][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.912419][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.912419][ T254] [ 2363.914545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.914545][ T254] netdev_get_by_index+0x5e/0x80 [ 2363.914545][ T254] fib6_nh_init+0x3d8/0x1580 [ 2363.914545][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2363.914545][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2363.914545][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2363.914545][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2363.914545][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2363.914545][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2363.914545][ T254] addrconf_dad_begin+0x310/0x670 [ 2363.914545][ T254] addrconf_dad_work+0x10b/0xab0 [ 2363.914545][ T254] process_one_work+0x84d/0x18a0 [ 2363.914545][ T254] worker_thread+0x587/0xd30 [ 2363.914545][ T254] kthread+0x28a/0x350 [ 2363.914545][ T254] ret_from_fork+0x31/0x70 [ 2363.914545][ T254] ret_from_fork_asm+0x1a/0x30 [ 2363.914545][ T254] [ 2363.916691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.916691][ T254] netdev_get_by_index+0x5e/0x80 [ 2363.916691][ T254] fib6_nh_init+0x3d8/0x1580 [ 2363.916691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2363.916691][ T254] ip6_route_add+0x1c/0x140 [ 2363.916691][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2363.916691][ T254] inet6_addr_add+0x4f8/0xa40 [ 2363.916691][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.916691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.916691][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.916691][ T254] netlink_unicast+0x449/0x710 [ 2363.916691][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.916691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.916691][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.916691][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.916691][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.916691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.916691][ T254] [ 2363.918814][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.918814][ T254] netdev_get_by_index+0x5e/0x80 [ 2363.918814][ T254] fib6_nh_init+0x3d8/0x1580 [ 2363.918814][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2363.918814][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2363.918814][ T254] ipv6_add_addr+0x411/0x2000 [ 2363.918814][ T254] inet6_addr_add+0x30e/0xa40 [ 2363.918814][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.918814][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.918814][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.918814][ T254] netlink_unicast+0x449/0x710 [ 2363.918814][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.918814][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.918814][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.918814][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.918814][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.918814][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.918814][ T254] [ 2363.921046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.921046][ T254] netdev_get_by_index+0x5e/0x80 [ 2363.921046][ T254] fib6_nh_init+0x3d8/0x1580 [ 2363.921046][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2363.921046][ T254] ip6_route_add+0x1c/0x140 [ 2363.921046][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2363.921046][ T254] addrconf_add_dev+0xe2/0x170 [ 2363.921046][ T254] inet6_addr_add+0x12f/0xa40 [ 2363.921046][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2363.921046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.921046][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.921046][ T254] netlink_unicast+0x449/0x710 [ 2363.921046][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.921046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.921046][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.921046][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.921046][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.921046][ T254] [ 2363.923123][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.923123][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2363.923123][ T254] ipv6_find_idev+0x102/0x170 [ 2363.923123][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.923123][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.923123][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.923123][ T254] netlink_unicast+0x449/0x710 [ 2363.923123][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.923123][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.923123][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.923123][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.923123][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.923123][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.923123][ T254] [ 2363.924846][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2363.924846][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2363.924846][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2363.924846][ T254] ipv6_find_idev+0x102/0x170 [ 2363.924846][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2363.924846][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2363.924846][ T254] netlink_rcv_skb+0x130/0x360 [ 2363.924846][ T254] netlink_unicast+0x449/0x710 [ 2363.924846][ T254] netlink_sendmsg+0x723/0xbe0 [ 2363.924846][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2363.924846][ T254] ___sys_sendmsg+0xee/0x170 [ 2363.924846][ T254] __sys_sendmsg+0xcd/0x170 [ 2363.924846][ T254] do_syscall_64+0xc6/0x1e0 [ 2363.924846][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2363.924846][ T254] [ 2374.167871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2374.168545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.168545][ T254] dst_init+0x84/0x4a0 [ 2374.168545][ T254] dst_alloc+0x97/0x150 [ 2374.168545][ T254] ip6_dst_alloc+0x23/0x90 [ 2374.168545][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2374.168545][ T254] ip6_pol_route+0x56f/0x840 [ 2374.168545][ T254] fib6_rule_lookup+0x334/0x630 [ 2374.168545][ T254] ip6_route_output_flags+0x259/0x480 [ 2374.168545][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2374.168545][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2374.168545][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.168545][ T254] netlink_unicast+0x449/0x710 [ 2374.168545][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.168545][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.168545][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.168545][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.168545][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.168545][ T254] [ 2374.170726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.170726][ T254] netdev_get_by_index+0x5e/0x80 [ 2374.170726][ T254] fib6_nh_init+0x3d8/0x1580 [ 2374.170726][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2374.170726][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2374.170726][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2374.170726][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2374.170726][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2374.170726][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2374.170726][ T254] addrconf_dad_begin+0x310/0x670 [ 2374.170726][ T254] addrconf_dad_work+0x10b/0xab0 [ 2374.170726][ T254] process_one_work+0x84d/0x18a0 [ 2374.170726][ T254] worker_thread+0x587/0xd30 [ 2374.170726][ T254] kthread+0x28a/0x350 [ 2374.170726][ T254] ret_from_fork+0x31/0x70 [ 2374.170726][ T254] ret_from_fork_asm+0x1a/0x30 [ 2374.170726][ T254] [ 2374.172760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.172760][ T254] netdev_get_by_index+0x5e/0x80 [ 2374.172760][ T254] fib6_nh_init+0x3d8/0x1580 [ 2374.172760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2374.172760][ T254] ip6_route_add+0x1c/0x140 [ 2374.172760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2374.172760][ T254] inet6_addr_add+0x4f8/0xa40 [ 2374.172760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2374.172760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2374.172760][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.172760][ T254] netlink_unicast+0x449/0x710 [ 2374.172760][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.172760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.172760][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.172760][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.172760][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.172760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2374.172760][ T254] [ 2374.174948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.174948][ T254] netdev_get_by_index+0x5e/0x80 [ 2374.174948][ T254] fib6_nh_init+0x3d8/0x1580 [ 2374.174948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2374.174948][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2374.174948][ T254] ipv6_add_addr+0x411/0x2000 [ 2374.174948][ T254] inet6_addr_add+0x30e/0xa40 [ 2374.174948][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2374.174948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2374.174948][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.174948][ T254] netlink_unicast+0x449/0x710 [ 2374.174948][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.174948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.174948][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.174948][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.174948][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.174948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2374.174948][ T254] [ 2374.177165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.177165][ T254] netdev_get_by_index+0x5e/0x80 [ 2374.177165][ T254] fib6_nh_init+0x3d8/0x1580 [ 2374.177165][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2374.177165][ T254] ip6_route_add+0x1c/0x140 [ 2374.177165][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2374.177165][ T254] addrconf_add_dev+0xe2/0x170 [ 2374.177165][ T254] inet6_addr_add+0x12f/0xa40 [ 2374.177165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2374.177165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2374.177165][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.177165][ T254] netlink_unicast+0x449/0x710 [ 2374.177165][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.177165][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.177165][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.177165][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.177165][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.177165][ T254] [ 2374.179384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.179384][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2374.179384][ T254] ipv6_find_idev+0x102/0x170 [ 2374.179384][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2374.179384][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2374.179384][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.179384][ T254] netlink_unicast+0x449/0x710 [ 2374.179384][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.179384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.179384][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.179384][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.179384][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.179384][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2374.179384][ T254] [ 2374.180996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2374.180996][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2374.180996][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2374.180996][ T254] ipv6_find_idev+0x102/0x170 [ 2374.180996][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2374.180996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2374.180996][ T254] netlink_rcv_skb+0x130/0x360 [ 2374.180996][ T254] netlink_unicast+0x449/0x710 [ 2374.180996][ T254] netlink_sendmsg+0x723/0xbe0 [ 2374.180996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2374.180996][ T254] ___sys_sendmsg+0xee/0x170 [ 2374.180996][ T254] __sys_sendmsg+0xcd/0x170 [ 2374.180996][ T254] do_syscall_64+0xc6/0x1e0 [ 2374.180996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2374.180996][ T254] [ 2384.423922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2384.424562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.424562][ T254] dst_init+0x84/0x4a0 [ 2384.424562][ T254] dst_alloc+0x97/0x150 [ 2384.424562][ T254] ip6_dst_alloc+0x23/0x90 [ 2384.424562][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2384.424562][ T254] ip6_pol_route+0x56f/0x840 [ 2384.424562][ T254] fib6_rule_lookup+0x334/0x630 [ 2384.424562][ T254] ip6_route_output_flags+0x259/0x480 [ 2384.424562][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2384.424562][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2384.424562][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.424562][ T254] netlink_unicast+0x449/0x710 [ 2384.424562][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.424562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.424562][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.424562][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.424562][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.424562][ T254] [ 2384.426778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.426778][ T254] netdev_get_by_index+0x5e/0x80 [ 2384.426778][ T254] fib6_nh_init+0x3d8/0x1580 [ 2384.426778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2384.426778][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2384.426778][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2384.426778][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2384.426778][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2384.426778][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2384.426778][ T254] addrconf_dad_begin+0x310/0x670 [ 2384.426778][ T254] addrconf_dad_work+0x10b/0xab0 [ 2384.426778][ T254] process_one_work+0x84d/0x18a0 [ 2384.426778][ T254] worker_thread+0x587/0xd30 [ 2384.426778][ T254] kthread+0x28a/0x350 [ 2384.426778][ T254] ret_from_fork+0x31/0x70 [ 2384.426778][ T254] ret_from_fork_asm+0x1a/0x30 [ 2384.426778][ T254] [ 2384.428858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.428858][ T254] netdev_get_by_index+0x5e/0x80 [ 2384.428858][ T254] fib6_nh_init+0x3d8/0x1580 [ 2384.428858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2384.428858][ T254] ip6_route_add+0x1c/0x140 [ 2384.428858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2384.428858][ T254] inet6_addr_add+0x4f8/0xa40 [ 2384.428858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2384.428858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2384.428858][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.428858][ T254] netlink_unicast+0x449/0x710 [ 2384.428858][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.428858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.428858][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.428858][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.428858][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.428858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2384.428858][ T254] [ 2384.431030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.431030][ T254] netdev_get_by_index+0x5e/0x80 [ 2384.431030][ T254] fib6_nh_init+0x3d8/0x1580 [ 2384.431030][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2384.431030][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2384.431030][ T254] ipv6_add_addr+0x411/0x2000 [ 2384.431030][ T254] inet6_addr_add+0x30e/0xa40 [ 2384.431030][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2384.431030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2384.431030][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.431030][ T254] netlink_unicast+0x449/0x710 [ 2384.431030][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.431030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.431030][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.431030][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.431030][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.431030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2384.431030][ T254] [ 2384.433302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.433302][ T254] netdev_get_by_index+0x5e/0x80 [ 2384.433302][ T254] fib6_nh_init+0x3d8/0x1580 [ 2384.433302][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2384.433302][ T254] ip6_route_add+0x1c/0x140 [ 2384.433302][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2384.433302][ T254] addrconf_add_dev+0xe2/0x170 [ 2384.433302][ T254] inet6_addr_add+0x12f/0xa40 [ 2384.433302][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2384.433302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2384.433302][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.433302][ T254] netlink_unicast+0x449/0x710 [ 2384.433302][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.433302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.433302][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.433302][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.433302][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.433302][ T254] [ 2384.435596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.435596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2384.435596][ T254] ipv6_find_idev+0x102/0x170 [ 2384.435596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2384.435596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2384.435596][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.435596][ T254] netlink_unicast+0x449/0x710 [ 2384.435596][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.435596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.435596][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.435596][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.435596][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.435596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2384.435596][ T254] [ 2384.437410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2384.437410][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2384.437410][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2384.437410][ T254] ipv6_find_idev+0x102/0x170 [ 2384.437410][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2384.437410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2384.437410][ T254] netlink_rcv_skb+0x130/0x360 [ 2384.437410][ T254] netlink_unicast+0x449/0x710 [ 2384.437410][ T254] netlink_sendmsg+0x723/0xbe0 [ 2384.437410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2384.437410][ T254] ___sys_sendmsg+0xee/0x170 [ 2384.437410][ T254] __sys_sendmsg+0xcd/0x170 [ 2384.437410][ T254] do_syscall_64+0xc6/0x1e0 [ 2384.437410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2384.437410][ T254] [ 2394.768001][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2394.768522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.768522][ T254] dst_init+0x84/0x4a0 [ 2394.768522][ T254] dst_alloc+0x97/0x150 [ 2394.768522][ T254] ip6_dst_alloc+0x23/0x90 [ 2394.768522][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2394.768522][ T254] ip6_pol_route+0x56f/0x840 [ 2394.768522][ T254] fib6_rule_lookup+0x334/0x630 [ 2394.768522][ T254] ip6_route_output_flags+0x259/0x480 [ 2394.768522][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2394.768522][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2394.768522][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.768522][ T254] netlink_unicast+0x449/0x710 [ 2394.768522][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.768522][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.768522][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.768522][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.768522][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.768522][ T254] [ 2394.770669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.770669][ T254] netdev_get_by_index+0x5e/0x80 [ 2394.770669][ T254] fib6_nh_init+0x3d8/0x1580 [ 2394.770669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2394.770669][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2394.770669][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2394.770669][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2394.770669][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2394.770669][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2394.770669][ T254] addrconf_dad_begin+0x310/0x670 [ 2394.770669][ T254] addrconf_dad_work+0x10b/0xab0 [ 2394.770669][ T254] process_one_work+0x84d/0x18a0 [ 2394.770669][ T254] worker_thread+0x587/0xd30 [ 2394.770669][ T254] kthread+0x28a/0x350 [ 2394.770669][ T254] ret_from_fork+0x31/0x70 [ 2394.770669][ T254] ret_from_fork_asm+0x1a/0x30 [ 2394.770669][ T254] [ 2394.772765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.772765][ T254] netdev_get_by_index+0x5e/0x80 [ 2394.772765][ T254] fib6_nh_init+0x3d8/0x1580 [ 2394.772765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2394.772765][ T254] ip6_route_add+0x1c/0x140 [ 2394.772765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2394.772765][ T254] inet6_addr_add+0x4f8/0xa40 [ 2394.772765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2394.772765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2394.772765][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.772765][ T254] netlink_unicast+0x449/0x710 [ 2394.772765][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.772765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.772765][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.772765][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.772765][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.772765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2394.772765][ T254] [ 2394.774987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.774987][ T254] netdev_get_by_index+0x5e/0x80 [ 2394.774987][ T254] fib6_nh_init+0x3d8/0x1580 [ 2394.774987][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2394.774987][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2394.774987][ T254] ipv6_add_addr+0x411/0x2000 [ 2394.774987][ T254] inet6_addr_add+0x30e/0xa40 [ 2394.774987][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2394.774987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2394.774987][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.774987][ T254] netlink_unicast+0x449/0x710 [ 2394.774987][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.774987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.774987][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.774987][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.774987][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.774987][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2394.774987][ T254] [ 2394.777308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.777308][ T254] netdev_get_by_index+0x5e/0x80 [ 2394.777308][ T254] fib6_nh_init+0x3d8/0x1580 [ 2394.777308][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2394.777308][ T254] ip6_route_add+0x1c/0x140 [ 2394.777308][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2394.777308][ T254] addrconf_add_dev+0xe2/0x170 [ 2394.777308][ T254] inet6_addr_add+0x12f/0xa40 [ 2394.777308][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2394.777308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2394.777308][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.777308][ T254] netlink_unicast+0x449/0x710 [ 2394.777308][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.777308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.777308][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.777308][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.777308][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.777308][ T254] [ 2394.779529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.779529][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2394.779529][ T254] ipv6_find_idev+0x102/0x170 [ 2394.779529][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2394.779529][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2394.779529][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.779529][ T254] netlink_unicast+0x449/0x710 [ 2394.779529][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.779529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.779529][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.779529][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.779529][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.779529][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2394.779529][ T254] [ 2394.781248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2394.781248][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2394.781248][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2394.781248][ T254] ipv6_find_idev+0x102/0x170 [ 2394.781248][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2394.781248][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2394.781248][ T254] netlink_rcv_skb+0x130/0x360 [ 2394.781248][ T254] netlink_unicast+0x449/0x710 [ 2394.781248][ T254] netlink_sendmsg+0x723/0xbe0 [ 2394.781248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2394.781248][ T254] ___sys_sendmsg+0xee/0x170 [ 2394.781248][ T254] __sys_sendmsg+0xcd/0x170 [ 2394.781248][ T254] do_syscall_64+0xc6/0x1e0 [ 2394.781248][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2394.781248][ T254] [ 2404.863907][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2404.864552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.864552][ T254] dst_init+0x84/0x4a0 [ 2404.864552][ T254] dst_alloc+0x97/0x150 [ 2404.864552][ T254] ip6_dst_alloc+0x23/0x90 [ 2404.864552][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2404.864552][ T254] ip6_pol_route+0x56f/0x840 [ 2404.864552][ T254] fib6_rule_lookup+0x334/0x630 [ 2404.864552][ T254] ip6_route_output_flags+0x259/0x480 [ 2404.864552][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2404.864552][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2404.864552][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.864552][ T254] netlink_unicast+0x449/0x710 [ 2404.864552][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.864552][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.864552][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.864552][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.864552][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.864552][ T254] [ 2404.866761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.866761][ T254] netdev_get_by_index+0x5e/0x80 [ 2404.866761][ T254] fib6_nh_init+0x3d8/0x1580 [ 2404.866761][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2404.866761][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2404.866761][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2404.866761][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2404.866761][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2404.866761][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2404.866761][ T254] addrconf_dad_begin+0x310/0x670 [ 2404.866761][ T254] addrconf_dad_work+0x10b/0xab0 [ 2404.866761][ T254] process_one_work+0x84d/0x18a0 [ 2404.866761][ T254] worker_thread+0x587/0xd30 [ 2404.866761][ T254] kthread+0x28a/0x350 [ 2404.866761][ T254] ret_from_fork+0x31/0x70 [ 2404.866761][ T254] ret_from_fork_asm+0x1a/0x30 [ 2404.866761][ T254] [ 2404.868875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.868875][ T254] netdev_get_by_index+0x5e/0x80 [ 2404.868875][ T254] fib6_nh_init+0x3d8/0x1580 [ 2404.868875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2404.868875][ T254] ip6_route_add+0x1c/0x140 [ 2404.868875][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2404.868875][ T254] inet6_addr_add+0x4f8/0xa40 [ 2404.868875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.868875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.868875][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.868875][ T254] netlink_unicast+0x449/0x710 [ 2404.868875][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.868875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.868875][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.868875][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.868875][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.868875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.868875][ T254] [ 2404.871073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.871073][ T254] netdev_get_by_index+0x5e/0x80 [ 2404.871073][ T254] fib6_nh_init+0x3d8/0x1580 [ 2404.871073][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2404.871073][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2404.871073][ T254] ipv6_add_addr+0x411/0x2000 [ 2404.871073][ T254] inet6_addr_add+0x30e/0xa40 [ 2404.871073][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.871073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.871073][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.871073][ T254] netlink_unicast+0x449/0x710 [ 2404.871073][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.871073][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.871073][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.871073][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.871073][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.871073][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.871073][ T254] [ 2404.873327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.873327][ T254] netdev_get_by_index+0x5e/0x80 [ 2404.873327][ T254] fib6_nh_init+0x3d8/0x1580 [ 2404.873327][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2404.873327][ T254] ip6_route_add+0x1c/0x140 [ 2404.873327][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2404.873327][ T254] addrconf_add_dev+0xe2/0x170 [ 2404.873327][ T254] inet6_addr_add+0x12f/0xa40 [ 2404.873327][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2404.873327][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.873327][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.873327][ T254] netlink_unicast+0x449/0x710 [ 2404.873327][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.873327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.873327][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.873327][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.873327][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.873327][ T254] [ 2404.875512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.875512][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2404.875512][ T254] ipv6_find_idev+0x102/0x170 [ 2404.875512][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.875512][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.875512][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.875512][ T254] netlink_unicast+0x449/0x710 [ 2404.875512][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.875512][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.875512][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.875512][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.875512][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.875512][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.875512][ T254] [ 2404.877261][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2404.877261][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2404.877261][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2404.877261][ T254] ipv6_find_idev+0x102/0x170 [ 2404.877261][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2404.877261][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2404.877261][ T254] netlink_rcv_skb+0x130/0x360 [ 2404.877261][ T254] netlink_unicast+0x449/0x710 [ 2404.877261][ T254] netlink_sendmsg+0x723/0xbe0 [ 2404.877261][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2404.877261][ T254] ___sys_sendmsg+0xee/0x170 [ 2404.877261][ T254] __sys_sendmsg+0xcd/0x170 [ 2404.877261][ T254] do_syscall_64+0xc6/0x1e0 [ 2404.877261][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2404.877261][ T254] [ 2414.991912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2414.992631][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2414.992631][ T254] dst_init+0x84/0x4a0 [ 2414.992631][ T254] dst_alloc+0x97/0x150 [ 2414.992631][ T254] ip6_dst_alloc+0x23/0x90 [ 2414.992631][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2414.992631][ T254] ip6_pol_route+0x56f/0x840 [ 2414.992631][ T254] fib6_rule_lookup+0x334/0x630 [ 2414.992631][ T254] ip6_route_output_flags+0x259/0x480 [ 2414.992631][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2414.992631][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2414.992631][ T254] netlink_rcv_skb+0x130/0x360 [ 2414.992631][ T254] netlink_unicast+0x449/0x710 [ 2414.992631][ T254] netlink_sendmsg+0x723/0xbe0 [ 2414.992631][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2414.992631][ T254] ___sys_sendmsg+0xee/0x170 [ 2414.992631][ T254] __sys_sendmsg+0xcd/0x170 [ 2414.992631][ T254] do_syscall_64+0xc6/0x1e0 [ 2414.992631][ T254] [ 2414.994807][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2414.994807][ T254] netdev_get_by_index+0x5e/0x80 [ 2414.994807][ T254] fib6_nh_init+0x3d8/0x1580 [ 2414.994807][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2414.994807][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2414.994807][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2414.994807][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2414.994807][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2414.994807][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2414.994807][ T254] addrconf_dad_begin+0x310/0x670 [ 2414.994807][ T254] addrconf_dad_work+0x10b/0xab0 [ 2414.994807][ T254] process_one_work+0x84d/0x18a0 [ 2414.994807][ T254] worker_thread+0x587/0xd30 [ 2414.994807][ T254] kthread+0x28a/0x350 [ 2414.994807][ T254] ret_from_fork+0x31/0x70 [ 2414.994807][ T254] ret_from_fork_asm+0x1a/0x30 [ 2414.994807][ T254] [ 2414.996975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2414.996975][ T254] netdev_get_by_index+0x5e/0x80 [ 2414.996975][ T254] fib6_nh_init+0x3d8/0x1580 [ 2414.996975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2414.996975][ T254] ip6_route_add+0x1c/0x140 [ 2414.996975][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2414.996975][ T254] inet6_addr_add+0x4f8/0xa40 [ 2414.996975][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.996975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.996975][ T254] netlink_rcv_skb+0x130/0x360 [ 2414.996975][ T254] netlink_unicast+0x449/0x710 [ 2414.996975][ T254] netlink_sendmsg+0x723/0xbe0 [ 2414.996975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2414.996975][ T254] ___sys_sendmsg+0xee/0x170 [ 2414.996975][ T254] __sys_sendmsg+0xcd/0x170 [ 2414.996975][ T254] do_syscall_64+0xc6/0x1e0 [ 2414.996975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.996975][ T254] [ 2414.999191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2414.999191][ T254] netdev_get_by_index+0x5e/0x80 [ 2414.999191][ T254] fib6_nh_init+0x3d8/0x1580 [ 2414.999191][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2414.999191][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2414.999191][ T254] ipv6_add_addr+0x411/0x2000 [ 2414.999191][ T254] inet6_addr_add+0x30e/0xa40 [ 2414.999191][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2414.999191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2414.999191][ T254] netlink_rcv_skb+0x130/0x360 [ 2414.999191][ T254] netlink_unicast+0x449/0x710 [ 2414.999191][ T254] netlink_sendmsg+0x723/0xbe0 [ 2414.999191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2414.999191][ T254] ___sys_sendmsg+0xee/0x170 [ 2414.999191][ T254] __sys_sendmsg+0xcd/0x170 [ 2414.999191][ T254] do_syscall_64+0xc6/0x1e0 [ 2414.999191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2414.999191][ T254] [ 2415.001419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2415.001419][ T254] netdev_get_by_index+0x5e/0x80 [ 2415.001419][ T254] fib6_nh_init+0x3d8/0x1580 [ 2415.001419][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2415.001419][ T254] ip6_route_add+0x1c/0x140 [ 2415.001419][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2415.001419][ T254] addrconf_add_dev+0xe2/0x170 [ 2415.001419][ T254] inet6_addr_add+0x12f/0xa40 [ 2415.001419][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2415.001419][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2415.001419][ T254] netlink_rcv_skb+0x130/0x360 [ 2415.001419][ T254] netlink_unicast+0x449/0x710 [ 2415.001419][ T254] netlink_sendmsg+0x723/0xbe0 [ 2415.001419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2415.001419][ T254] ___sys_sendmsg+0xee/0x170 [ 2415.001419][ T254] __sys_sendmsg+0xcd/0x170 [ 2415.001419][ T254] do_syscall_64+0xc6/0x1e0 [ 2415.001419][ T254] [ 2415.003575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2415.003575][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2415.003575][ T254] ipv6_find_idev+0x102/0x170 [ 2415.003575][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2415.003575][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2415.003575][ T254] netlink_rcv_skb+0x130/0x360 [ 2415.003575][ T254] netlink_unicast+0x449/0x710 [ 2415.003575][ T254] netlink_sendmsg+0x723/0xbe0 [ 2415.003575][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2415.003575][ T254] ___sys_sendmsg+0xee/0x170 [ 2415.003575][ T254] __sys_sendmsg+0xcd/0x170 [ 2415.003575][ T254] do_syscall_64+0xc6/0x1e0 [ 2415.003575][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2415.003575][ T254] [ 2415.005302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2415.005302][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2415.005302][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2415.005302][ T254] ipv6_find_idev+0x102/0x170 [ 2415.005302][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2415.005302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2415.005302][ T254] netlink_rcv_skb+0x130/0x360 [ 2415.005302][ T254] netlink_unicast+0x449/0x710 [ 2415.005302][ T254] netlink_sendmsg+0x723/0xbe0 [ 2415.005302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2415.005302][ T254] ___sys_sendmsg+0xee/0x170 [ 2415.005302][ T254] __sys_sendmsg+0xcd/0x170 [ 2415.005302][ T254] do_syscall_64+0xc6/0x1e0 [ 2415.005302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2415.005302][ T254] [ 2425.095917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2425.096501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.096501][ T254] dst_init+0x84/0x4a0 [ 2425.096501][ T254] dst_alloc+0x97/0x150 [ 2425.096501][ T254] ip6_dst_alloc+0x23/0x90 [ 2425.096501][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2425.096501][ T254] ip6_pol_route+0x56f/0x840 [ 2425.096501][ T254] fib6_rule_lookup+0x334/0x630 [ 2425.096501][ T254] ip6_route_output_flags+0x259/0x480 [ 2425.096501][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2425.096501][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2425.096501][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.096501][ T254] netlink_unicast+0x449/0x710 [ 2425.096501][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.096501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.096501][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.096501][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.096501][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.096501][ T254] [ 2425.098720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.098720][ T254] netdev_get_by_index+0x5e/0x80 [ 2425.098720][ T254] fib6_nh_init+0x3d8/0x1580 [ 2425.098720][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2425.098720][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2425.098720][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2425.098720][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2425.098720][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2425.098720][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2425.098720][ T254] addrconf_dad_begin+0x310/0x670 [ 2425.098720][ T254] addrconf_dad_work+0x10b/0xab0 [ 2425.098720][ T254] process_one_work+0x84d/0x18a0 [ 2425.098720][ T254] worker_thread+0x587/0xd30 [ 2425.098720][ T254] kthread+0x28a/0x350 [ 2425.098720][ T254] ret_from_fork+0x31/0x70 [ 2425.098720][ T254] ret_from_fork_asm+0x1a/0x30 [ 2425.098720][ T254] [ 2425.100883][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.100883][ T254] netdev_get_by_index+0x5e/0x80 [ 2425.100883][ T254] fib6_nh_init+0x3d8/0x1580 [ 2425.100883][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2425.100883][ T254] ip6_route_add+0x1c/0x140 [ 2425.100883][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2425.100883][ T254] inet6_addr_add+0x4f8/0xa40 [ 2425.100883][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2425.100883][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2425.100883][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.100883][ T254] netlink_unicast+0x449/0x710 [ 2425.100883][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.100883][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.100883][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.100883][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.100883][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.100883][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2425.100883][ T254] [ 2425.103130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.103130][ T254] netdev_get_by_index+0x5e/0x80 [ 2425.103130][ T254] fib6_nh_init+0x3d8/0x1580 [ 2425.103130][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2425.103130][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2425.103130][ T254] ipv6_add_addr+0x411/0x2000 [ 2425.103130][ T254] inet6_addr_add+0x30e/0xa40 [ 2425.103130][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2425.103130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2425.103130][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.103130][ T254] netlink_unicast+0x449/0x710 [ 2425.103130][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.103130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.103130][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.103130][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.103130][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.103130][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2425.103130][ T254] [ 2425.105387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.105387][ T254] netdev_get_by_index+0x5e/0x80 [ 2425.105387][ T254] fib6_nh_init+0x3d8/0x1580 [ 2425.105387][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2425.105387][ T254] ip6_route_add+0x1c/0x140 [ 2425.105387][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2425.105387][ T254] addrconf_add_dev+0xe2/0x170 [ 2425.105387][ T254] inet6_addr_add+0x12f/0xa40 [ 2425.105387][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2425.105387][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2425.105387][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.105387][ T254] netlink_unicast+0x449/0x710 [ 2425.105387][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.105387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.105387][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.105387][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.105387][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.105387][ T254] [ 2425.107596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.107596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2425.107596][ T254] ipv6_find_idev+0x102/0x170 [ 2425.107596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2425.107596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2425.107596][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.107596][ T254] netlink_unicast+0x449/0x710 [ 2425.107596][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.107596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.107596][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.107596][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.107596][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.107596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2425.107596][ T254] [ 2425.109336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2425.109336][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2425.109336][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2425.109336][ T254] ipv6_find_idev+0x102/0x170 [ 2425.109336][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2425.109336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2425.109336][ T254] netlink_rcv_skb+0x130/0x360 [ 2425.109336][ T254] netlink_unicast+0x449/0x710 [ 2425.109336][ T254] netlink_sendmsg+0x723/0xbe0 [ 2425.109336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2425.109336][ T254] ___sys_sendmsg+0xee/0x170 [ 2425.109336][ T254] __sys_sendmsg+0xcd/0x170 [ 2425.109336][ T254] do_syscall_64+0xc6/0x1e0 [ 2425.109336][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2425.109336][ T254] [ 2435.351929][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2435.352444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.352444][ T254] dst_init+0x84/0x4a0 [ 2435.352444][ T254] dst_alloc+0x97/0x150 [ 2435.352444][ T254] ip6_dst_alloc+0x23/0x90 [ 2435.352444][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2435.352444][ T254] ip6_pol_route+0x56f/0x840 [ 2435.352444][ T254] fib6_rule_lookup+0x334/0x630 [ 2435.352444][ T254] ip6_route_output_flags+0x259/0x480 [ 2435.352444][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2435.352444][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2435.352444][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.352444][ T254] netlink_unicast+0x449/0x710 [ 2435.352444][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.352444][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.352444][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.352444][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.352444][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.352444][ T254] [ 2435.354603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.354603][ T254] netdev_get_by_index+0x5e/0x80 [ 2435.354603][ T254] fib6_nh_init+0x3d8/0x1580 [ 2435.354603][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2435.354603][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2435.354603][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2435.354603][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2435.354603][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2435.354603][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2435.354603][ T254] addrconf_dad_begin+0x310/0x670 [ 2435.354603][ T254] addrconf_dad_work+0x10b/0xab0 [ 2435.354603][ T254] process_one_work+0x84d/0x18a0 [ 2435.354603][ T254] worker_thread+0x587/0xd30 [ 2435.354603][ T254] kthread+0x28a/0x350 [ 2435.354603][ T254] ret_from_fork+0x31/0x70 [ 2435.354603][ T254] ret_from_fork_asm+0x1a/0x30 [ 2435.354603][ T254] [ 2435.356727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.356727][ T254] netdev_get_by_index+0x5e/0x80 [ 2435.356727][ T254] fib6_nh_init+0x3d8/0x1580 [ 2435.356727][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2435.356727][ T254] ip6_route_add+0x1c/0x140 [ 2435.356727][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2435.356727][ T254] inet6_addr_add+0x4f8/0xa40 [ 2435.356727][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2435.356727][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2435.356727][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.356727][ T254] netlink_unicast+0x449/0x710 [ 2435.356727][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.356727][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.356727][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.356727][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.356727][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.356727][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2435.356727][ T254] [ 2435.358933][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.358933][ T254] netdev_get_by_index+0x5e/0x80 [ 2435.358933][ T254] fib6_nh_init+0x3d8/0x1580 [ 2435.358933][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2435.358933][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2435.358933][ T254] ipv6_add_addr+0x411/0x2000 [ 2435.358933][ T254] inet6_addr_add+0x30e/0xa40 [ 2435.358933][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2435.358933][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2435.358933][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.358933][ T254] netlink_unicast+0x449/0x710 [ 2435.358933][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.358933][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.358933][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.358933][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.358933][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.358933][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2435.358933][ T254] [ 2435.361228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.361228][ T254] netdev_get_by_index+0x5e/0x80 [ 2435.361228][ T254] fib6_nh_init+0x3d8/0x1580 [ 2435.361228][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2435.361228][ T254] ip6_route_add+0x1c/0x140 [ 2435.361228][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2435.361228][ T254] addrconf_add_dev+0xe2/0x170 [ 2435.361228][ T254] inet6_addr_add+0x12f/0xa40 [ 2435.361228][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2435.361228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2435.361228][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.361228][ T254] netlink_unicast+0x449/0x710 [ 2435.361228][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.361228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.361228][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.361228][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.361228][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.361228][ T254] [ 2435.363403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.363403][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2435.363403][ T254] ipv6_find_idev+0x102/0x170 [ 2435.363403][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2435.363403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2435.363403][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.363403][ T254] netlink_unicast+0x449/0x710 [ 2435.363403][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.363403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.363403][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.363403][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.363403][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.363403][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2435.363403][ T254] [ 2435.365141][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2435.365141][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2435.365141][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2435.365141][ T254] ipv6_find_idev+0x102/0x170 [ 2435.365141][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2435.365141][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2435.365141][ T254] netlink_rcv_skb+0x130/0x360 [ 2435.365141][ T254] netlink_unicast+0x449/0x710 [ 2435.365141][ T254] netlink_sendmsg+0x723/0xbe0 [ 2435.365141][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2435.365141][ T254] ___sys_sendmsg+0xee/0x170 [ 2435.365141][ T254] __sys_sendmsg+0xcd/0x170 [ 2435.365141][ T254] do_syscall_64+0xc6/0x1e0 [ 2435.365141][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2435.365141][ T254] [ 2445.607926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2445.608549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.608549][ T254] dst_init+0x84/0x4a0 [ 2445.608549][ T254] dst_alloc+0x97/0x150 [ 2445.608549][ T254] ip6_dst_alloc+0x23/0x90 [ 2445.608549][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2445.608549][ T254] ip6_pol_route+0x56f/0x840 [ 2445.608549][ T254] fib6_rule_lookup+0x334/0x630 [ 2445.608549][ T254] ip6_route_output_flags+0x259/0x480 [ 2445.608549][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2445.608549][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2445.608549][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.608549][ T254] netlink_unicast+0x449/0x710 [ 2445.608549][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.608549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.608549][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.608549][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.608549][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.608549][ T254] [ 2445.610705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.610705][ T254] netdev_get_by_index+0x5e/0x80 [ 2445.610705][ T254] fib6_nh_init+0x3d8/0x1580 [ 2445.610705][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2445.610705][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2445.610705][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2445.610705][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2445.610705][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2445.610705][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2445.610705][ T254] addrconf_dad_begin+0x310/0x670 [ 2445.610705][ T254] addrconf_dad_work+0x10b/0xab0 [ 2445.610705][ T254] process_one_work+0x84d/0x18a0 [ 2445.610705][ T254] worker_thread+0x587/0xd30 [ 2445.610705][ T254] kthread+0x28a/0x350 [ 2445.610705][ T254] ret_from_fork+0x31/0x70 [ 2445.610705][ T254] ret_from_fork_asm+0x1a/0x30 [ 2445.610705][ T254] [ 2445.612852][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.612852][ T254] netdev_get_by_index+0x5e/0x80 [ 2445.612852][ T254] fib6_nh_init+0x3d8/0x1580 [ 2445.612852][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2445.612852][ T254] ip6_route_add+0x1c/0x140 [ 2445.612852][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2445.612852][ T254] inet6_addr_add+0x4f8/0xa40 [ 2445.612852][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2445.612852][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2445.612852][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.612852][ T254] netlink_unicast+0x449/0x710 [ 2445.612852][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.612852][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.612852][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.612852][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.612852][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.612852][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2445.612852][ T254] [ 2445.615068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.615068][ T254] netdev_get_by_index+0x5e/0x80 [ 2445.615068][ T254] fib6_nh_init+0x3d8/0x1580 [ 2445.615068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2445.615068][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2445.615068][ T254] ipv6_add_addr+0x411/0x2000 [ 2445.615068][ T254] inet6_addr_add+0x30e/0xa40 [ 2445.615068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2445.615068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2445.615068][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.615068][ T254] netlink_unicast+0x449/0x710 [ 2445.615068][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.615068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.615068][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.615068][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.615068][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.615068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2445.615068][ T254] [ 2445.617346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.617346][ T254] netdev_get_by_index+0x5e/0x80 [ 2445.617346][ T254] fib6_nh_init+0x3d8/0x1580 [ 2445.617346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2445.617346][ T254] ip6_route_add+0x1c/0x140 [ 2445.617346][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2445.617346][ T254] addrconf_add_dev+0xe2/0x170 [ 2445.617346][ T254] inet6_addr_add+0x12f/0xa40 [ 2445.617346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2445.617346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2445.617346][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.617346][ T254] netlink_unicast+0x449/0x710 [ 2445.617346][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.617346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.617346][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.617346][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.617346][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.617346][ T254] [ 2445.619530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.619530][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2445.619530][ T254] ipv6_find_idev+0x102/0x170 [ 2445.619530][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2445.619530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2445.619530][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.619530][ T254] netlink_unicast+0x449/0x710 [ 2445.619530][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.619530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.619530][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.619530][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.619530][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.619530][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2445.619530][ T254] [ 2445.621290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2445.621290][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2445.621290][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2445.621290][ T254] ipv6_find_idev+0x102/0x170 [ 2445.621290][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2445.621290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2445.621290][ T254] netlink_rcv_skb+0x130/0x360 [ 2445.621290][ T254] netlink_unicast+0x449/0x710 [ 2445.621290][ T254] netlink_sendmsg+0x723/0xbe0 [ 2445.621290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2445.621290][ T254] ___sys_sendmsg+0xee/0x170 [ 2445.621290][ T254] __sys_sendmsg+0xcd/0x170 [ 2445.621290][ T254] do_syscall_64+0xc6/0x1e0 [ 2445.621290][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2445.621290][ T254] [ 2455.847934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2455.848510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.848510][ T254] dst_init+0x84/0x4a0 [ 2455.848510][ T254] dst_alloc+0x97/0x150 [ 2455.848510][ T254] ip6_dst_alloc+0x23/0x90 [ 2455.848510][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2455.848510][ T254] ip6_pol_route+0x56f/0x840 [ 2455.848510][ T254] fib6_rule_lookup+0x334/0x630 [ 2455.848510][ T254] ip6_route_output_flags+0x259/0x480 [ 2455.848510][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2455.848510][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2455.848510][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.848510][ T254] netlink_unicast+0x449/0x710 [ 2455.848510][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.848510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.848510][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.848510][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.848510][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.848510][ T254] [ 2455.850659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.850659][ T254] netdev_get_by_index+0x5e/0x80 [ 2455.850659][ T254] fib6_nh_init+0x3d8/0x1580 [ 2455.850659][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2455.850659][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2455.850659][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2455.850659][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2455.850659][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2455.850659][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2455.850659][ T254] addrconf_dad_begin+0x310/0x670 [ 2455.850659][ T254] addrconf_dad_work+0x10b/0xab0 [ 2455.850659][ T254] process_one_work+0x84d/0x18a0 [ 2455.850659][ T254] worker_thread+0x587/0xd30 [ 2455.850659][ T254] kthread+0x28a/0x350 [ 2455.850659][ T254] ret_from_fork+0x31/0x70 [ 2455.850659][ T254] ret_from_fork_asm+0x1a/0x30 [ 2455.850659][ T254] [ 2455.852809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.852809][ T254] netdev_get_by_index+0x5e/0x80 [ 2455.852809][ T254] fib6_nh_init+0x3d8/0x1580 [ 2455.852809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2455.852809][ T254] ip6_route_add+0x1c/0x140 [ 2455.852809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2455.852809][ T254] inet6_addr_add+0x4f8/0xa40 [ 2455.852809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2455.852809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2455.852809][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.852809][ T254] netlink_unicast+0x449/0x710 [ 2455.852809][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.852809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.852809][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.852809][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.852809][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.852809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2455.852809][ T254] [ 2455.855641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.855641][ T254] netdev_get_by_index+0x5e/0x80 [ 2455.855641][ T254] fib6_nh_init+0x3d8/0x1580 [ 2455.855641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2455.855641][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2455.855641][ T254] ipv6_add_addr+0x411/0x2000 [ 2455.855641][ T254] inet6_addr_add+0x30e/0xa40 [ 2455.855641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2455.855641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2455.855641][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.855641][ T254] netlink_unicast+0x449/0x710 [ 2455.855641][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.855641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.855641][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.855641][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.855641][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.855641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2455.855641][ T254] [ 2455.857882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.857882][ T254] netdev_get_by_index+0x5e/0x80 [ 2455.857882][ T254] fib6_nh_init+0x3d8/0x1580 [ 2455.857882][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2455.857882][ T254] ip6_route_add+0x1c/0x140 [ 2455.857882][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2455.857882][ T254] addrconf_add_dev+0xe2/0x170 [ 2455.857882][ T254] inet6_addr_add+0x12f/0xa40 [ 2455.857882][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2455.857882][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2455.857882][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.857882][ T254] netlink_unicast+0x449/0x710 [ 2455.857882][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.857882][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.857882][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.857882][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.857882][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.857882][ T254] [ 2455.860045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.860045][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2455.860045][ T254] ipv6_find_idev+0x102/0x170 [ 2455.860045][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2455.860045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2455.860045][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.860045][ T254] netlink_unicast+0x449/0x710 [ 2455.860045][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.860045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.860045][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.860045][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.860045][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.860045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2455.860045][ T254] [ 2455.861770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2455.861770][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2455.861770][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2455.861770][ T254] ipv6_find_idev+0x102/0x170 [ 2455.861770][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2455.861770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2455.861770][ T254] netlink_rcv_skb+0x130/0x360 [ 2455.861770][ T254] netlink_unicast+0x449/0x710 [ 2455.861770][ T254] netlink_sendmsg+0x723/0xbe0 [ 2455.861770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2455.861770][ T254] ___sys_sendmsg+0xee/0x170 [ 2455.861770][ T254] __sys_sendmsg+0xcd/0x170 [ 2455.861770][ T254] do_syscall_64+0xc6/0x1e0 [ 2455.861770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2455.861770][ T254] [ 2466.335997][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2466.336599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.336599][ T254] dst_init+0x84/0x4a0 [ 2466.336599][ T254] dst_alloc+0x97/0x150 [ 2466.336599][ T254] ip6_dst_alloc+0x23/0x90 [ 2466.336599][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2466.336599][ T254] ip6_pol_route+0x56f/0x840 [ 2466.336599][ T254] fib6_rule_lookup+0x334/0x630 [ 2466.336599][ T254] ip6_route_output_flags+0x259/0x480 [ 2466.336599][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2466.336599][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2466.336599][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.336599][ T254] netlink_unicast+0x449/0x710 [ 2466.336599][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.336599][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.336599][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.336599][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.336599][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.336599][ T254] [ 2466.339221][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.339221][ T254] netdev_get_by_index+0x5e/0x80 [ 2466.339221][ T254] fib6_nh_init+0x3d8/0x1580 [ 2466.339221][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2466.339221][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2466.339221][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2466.339221][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2466.339221][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2466.339221][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2466.339221][ T254] addrconf_dad_begin+0x310/0x670 [ 2466.339221][ T254] addrconf_dad_work+0x10b/0xab0 [ 2466.339221][ T254] process_one_work+0x84d/0x18a0 [ 2466.339221][ T254] worker_thread+0x587/0xd30 [ 2466.339221][ T254] kthread+0x28a/0x350 [ 2466.339221][ T254] ret_from_fork+0x31/0x70 [ 2466.339221][ T254] ret_from_fork_asm+0x1a/0x30 [ 2466.339221][ T254] [ 2466.341346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.341346][ T254] netdev_get_by_index+0x5e/0x80 [ 2466.341346][ T254] fib6_nh_init+0x3d8/0x1580 [ 2466.341346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2466.341346][ T254] ip6_route_add+0x1c/0x140 [ 2466.341346][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2466.341346][ T254] inet6_addr_add+0x4f8/0xa40 [ 2466.341346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2466.341346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2466.341346][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.341346][ T254] netlink_unicast+0x449/0x710 [ 2466.341346][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.341346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.341346][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.341346][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.341346][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.341346][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2466.341346][ T254] [ 2466.343566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.343566][ T254] netdev_get_by_index+0x5e/0x80 [ 2466.343566][ T254] fib6_nh_init+0x3d8/0x1580 [ 2466.343566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2466.343566][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2466.343566][ T254] ipv6_add_addr+0x411/0x2000 [ 2466.343566][ T254] inet6_addr_add+0x30e/0xa40 [ 2466.343566][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2466.343566][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2466.343566][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.343566][ T254] netlink_unicast+0x449/0x710 [ 2466.343566][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.343566][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.343566][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.343566][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.343566][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.343566][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2466.343566][ T254] [ 2466.345784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.345784][ T254] netdev_get_by_index+0x5e/0x80 [ 2466.345784][ T254] fib6_nh_init+0x3d8/0x1580 [ 2466.345784][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2466.345784][ T254] ip6_route_add+0x1c/0x140 [ 2466.345784][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2466.345784][ T254] addrconf_add_dev+0xe2/0x170 [ 2466.345784][ T254] inet6_addr_add+0x12f/0xa40 [ 2466.345784][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2466.345784][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2466.345784][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.345784][ T254] netlink_unicast+0x449/0x710 [ 2466.345784][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.345784][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.345784][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.345784][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.345784][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.345784][ T254] [ 2466.348000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.348000][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2466.348000][ T254] ipv6_find_idev+0x102/0x170 [ 2466.348000][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2466.348000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2466.348000][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.348000][ T254] netlink_unicast+0x449/0x710 [ 2466.348000][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.348000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.348000][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.348000][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.348000][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.348000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2466.348000][ T254] [ 2466.349747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2466.349747][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2466.349747][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2466.349747][ T254] ipv6_find_idev+0x102/0x170 [ 2466.349747][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2466.349747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2466.349747][ T254] netlink_rcv_skb+0x130/0x360 [ 2466.349747][ T254] netlink_unicast+0x449/0x710 [ 2466.349747][ T254] netlink_sendmsg+0x723/0xbe0 [ 2466.349747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2466.349747][ T254] ___sys_sendmsg+0xee/0x170 [ 2466.349747][ T254] __sys_sendmsg+0xcd/0x170 [ 2466.349747][ T254] do_syscall_64+0xc6/0x1e0 [ 2466.349747][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2466.349747][ T254] [ 2476.599916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2476.600437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.600437][ T254] dst_init+0x84/0x4a0 [ 2476.600437][ T254] dst_alloc+0x97/0x150 [ 2476.600437][ T254] ip6_dst_alloc+0x23/0x90 [ 2476.600437][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2476.600437][ T254] ip6_pol_route+0x56f/0x840 [ 2476.600437][ T254] fib6_rule_lookup+0x334/0x630 [ 2476.600437][ T254] ip6_route_output_flags+0x259/0x480 [ 2476.600437][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2476.600437][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2476.600437][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.600437][ T254] netlink_unicast+0x449/0x710 [ 2476.600437][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.600437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.600437][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.600437][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.600437][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.600437][ T254] [ 2476.602591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.602591][ T254] netdev_get_by_index+0x5e/0x80 [ 2476.602591][ T254] fib6_nh_init+0x3d8/0x1580 [ 2476.602591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2476.602591][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2476.602591][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2476.602591][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2476.602591][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2476.602591][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2476.602591][ T254] addrconf_dad_begin+0x310/0x670 [ 2476.602591][ T254] addrconf_dad_work+0x10b/0xab0 [ 2476.602591][ T254] process_one_work+0x84d/0x18a0 [ 2476.602591][ T254] worker_thread+0x587/0xd30 [ 2476.602591][ T254] kthread+0x28a/0x350 [ 2476.602591][ T254] ret_from_fork+0x31/0x70 [ 2476.602591][ T254] ret_from_fork_asm+0x1a/0x30 [ 2476.602591][ T254] [ 2476.604734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.604734][ T254] netdev_get_by_index+0x5e/0x80 [ 2476.604734][ T254] fib6_nh_init+0x3d8/0x1580 [ 2476.604734][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2476.604734][ T254] ip6_route_add+0x1c/0x140 [ 2476.604734][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2476.604734][ T254] inet6_addr_add+0x4f8/0xa40 [ 2476.604734][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2476.604734][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2476.604734][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.604734][ T254] netlink_unicast+0x449/0x710 [ 2476.604734][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.604734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.604734][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.604734][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.604734][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.604734][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2476.604734][ T254] [ 2476.606991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.606991][ T254] netdev_get_by_index+0x5e/0x80 [ 2476.606991][ T254] fib6_nh_init+0x3d8/0x1580 [ 2476.606991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2476.606991][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2476.606991][ T254] ipv6_add_addr+0x411/0x2000 [ 2476.606991][ T254] inet6_addr_add+0x30e/0xa40 [ 2476.606991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2476.606991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2476.606991][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.606991][ T254] netlink_unicast+0x449/0x710 [ 2476.606991][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.606991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.606991][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.606991][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.606991][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.606991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2476.606991][ T254] [ 2476.609234][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.609234][ T254] netdev_get_by_index+0x5e/0x80 [ 2476.609234][ T254] fib6_nh_init+0x3d8/0x1580 [ 2476.609234][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2476.609234][ T254] ip6_route_add+0x1c/0x140 [ 2476.609234][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2476.609234][ T254] addrconf_add_dev+0xe2/0x170 [ 2476.609234][ T254] inet6_addr_add+0x12f/0xa40 [ 2476.609234][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2476.609234][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2476.609234][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.609234][ T254] netlink_unicast+0x449/0x710 [ 2476.609234][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.609234][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.609234][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.609234][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.609234][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.609234][ T254] [ 2476.611442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.611442][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2476.611442][ T254] ipv6_find_idev+0x102/0x170 [ 2476.611442][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2476.611442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2476.611442][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.611442][ T254] netlink_unicast+0x449/0x710 [ 2476.611442][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.611442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.611442][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.611442][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.611442][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.611442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2476.611442][ T254] [ 2476.613168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2476.613168][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2476.613168][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2476.613168][ T254] ipv6_find_idev+0x102/0x170 [ 2476.613168][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2476.613168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2476.613168][ T254] netlink_rcv_skb+0x130/0x360 [ 2476.613168][ T254] netlink_unicast+0x449/0x710 [ 2476.613168][ T254] netlink_sendmsg+0x723/0xbe0 [ 2476.613168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2476.613168][ T254] ___sys_sendmsg+0xee/0x170 [ 2476.613168][ T254] __sys_sendmsg+0xcd/0x170 [ 2476.613168][ T254] do_syscall_64+0xc6/0x1e0 [ 2476.613168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2476.613168][ T254] [ 2486.615786][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2486.616348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.616348][ T254] dst_init+0x84/0x4a0 [ 2486.616348][ T254] dst_alloc+0x97/0x150 [ 2486.616348][ T254] ip6_dst_alloc+0x23/0x90 [ 2486.616348][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2486.616348][ T254] ip6_pol_route+0x56f/0x840 [ 2486.616348][ T254] fib6_rule_lookup+0x334/0x630 [ 2486.616348][ T254] ip6_route_output_flags+0x259/0x480 [ 2486.616348][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2486.616348][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2486.616348][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.616348][ T254] netlink_unicast+0x449/0x710 [ 2486.616348][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.616348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.616348][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.616348][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.616348][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.616348][ T254] [ 2486.618551][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.618551][ T254] netdev_get_by_index+0x5e/0x80 [ 2486.618551][ T254] fib6_nh_init+0x3d8/0x1580 [ 2486.618551][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2486.618551][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2486.618551][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2486.618551][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2486.618551][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2486.618551][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2486.618551][ T254] addrconf_dad_begin+0x310/0x670 [ 2486.618551][ T254] addrconf_dad_work+0x10b/0xab0 [ 2486.618551][ T254] process_one_work+0x84d/0x18a0 [ 2486.618551][ T254] worker_thread+0x587/0xd30 [ 2486.618551][ T254] kthread+0x28a/0x350 [ 2486.618551][ T254] ret_from_fork+0x31/0x70 [ 2486.618551][ T254] ret_from_fork_asm+0x1a/0x30 [ 2486.618551][ T254] [ 2486.620711][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.620711][ T254] netdev_get_by_index+0x5e/0x80 [ 2486.620711][ T254] fib6_nh_init+0x3d8/0x1580 [ 2486.620711][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2486.620711][ T254] ip6_route_add+0x1c/0x140 [ 2486.620711][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2486.620711][ T254] inet6_addr_add+0x4f8/0xa40 [ 2486.620711][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2486.620711][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2486.620711][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.620711][ T254] netlink_unicast+0x449/0x710 [ 2486.620711][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.620711][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.620711][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.620711][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.620711][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.620711][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2486.620711][ T254] [ 2486.623092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.623092][ T254] netdev_get_by_index+0x5e/0x80 [ 2486.623092][ T254] fib6_nh_init+0x3d8/0x1580 [ 2486.623092][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2486.623092][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2486.623092][ T254] ipv6_add_addr+0x411/0x2000 [ 2486.623092][ T254] inet6_addr_add+0x30e/0xa40 [ 2486.623092][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2486.623092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2486.623092][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.623092][ T254] netlink_unicast+0x449/0x710 [ 2486.623092][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.623092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.623092][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.623092][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.623092][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.623092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2486.623092][ T254] [ 2486.625344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.625344][ T254] netdev_get_by_index+0x5e/0x80 [ 2486.625344][ T254] fib6_nh_init+0x3d8/0x1580 [ 2486.625344][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2486.625344][ T254] ip6_route_add+0x1c/0x140 [ 2486.625344][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2486.625344][ T254] addrconf_add_dev+0xe2/0x170 [ 2486.625344][ T254] inet6_addr_add+0x12f/0xa40 [ 2486.625344][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2486.625344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2486.625344][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.625344][ T254] netlink_unicast+0x449/0x710 [ 2486.625344][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.625344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.625344][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.625344][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.625344][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.625344][ T254] [ 2486.627537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.627537][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2486.627537][ T254] ipv6_find_idev+0x102/0x170 [ 2486.627537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2486.627537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2486.627537][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.627537][ T254] netlink_unicast+0x449/0x710 [ 2486.627537][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.627537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.627537][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.627537][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.627537][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.627537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2486.627537][ T254] [ 2486.629259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2486.629259][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2486.629259][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2486.629259][ T254] ipv6_find_idev+0x102/0x170 [ 2486.629259][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2486.629259][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2486.629259][ T254] netlink_rcv_skb+0x130/0x360 [ 2486.629259][ T254] netlink_unicast+0x449/0x710 [ 2486.629259][ T254] netlink_sendmsg+0x723/0xbe0 [ 2486.629259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2486.629259][ T254] ___sys_sendmsg+0xee/0x170 [ 2486.629259][ T254] __sys_sendmsg+0xcd/0x170 [ 2486.629259][ T254] do_syscall_64+0xc6/0x1e0 [ 2486.629259][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2486.629259][ T254] [ 2496.871918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2496.872559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.872559][ T254] dst_init+0x84/0x4a0 [ 2496.872559][ T254] dst_alloc+0x97/0x150 [ 2496.872559][ T254] ip6_dst_alloc+0x23/0x90 [ 2496.872559][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2496.872559][ T254] ip6_pol_route+0x56f/0x840 [ 2496.872559][ T254] fib6_rule_lookup+0x334/0x630 [ 2496.872559][ T254] ip6_route_output_flags+0x259/0x480 [ 2496.872559][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2496.872559][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2496.872559][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.872559][ T254] netlink_unicast+0x449/0x710 [ 2496.872559][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.872559][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.872559][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.872559][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.872559][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.872559][ T254] [ 2496.874691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.874691][ T254] netdev_get_by_index+0x5e/0x80 [ 2496.874691][ T254] fib6_nh_init+0x3d8/0x1580 [ 2496.874691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2496.874691][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2496.874691][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2496.874691][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2496.874691][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2496.874691][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2496.874691][ T254] addrconf_dad_begin+0x310/0x670 [ 2496.874691][ T254] addrconf_dad_work+0x10b/0xab0 [ 2496.874691][ T254] process_one_work+0x84d/0x18a0 [ 2496.874691][ T254] worker_thread+0x587/0xd30 [ 2496.874691][ T254] kthread+0x28a/0x350 [ 2496.874691][ T254] ret_from_fork+0x31/0x70 [ 2496.874691][ T254] ret_from_fork_asm+0x1a/0x30 [ 2496.874691][ T254] [ 2496.876804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.876804][ T254] netdev_get_by_index+0x5e/0x80 [ 2496.876804][ T254] fib6_nh_init+0x3d8/0x1580 [ 2496.876804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2496.876804][ T254] ip6_route_add+0x1c/0x140 [ 2496.876804][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2496.876804][ T254] inet6_addr_add+0x4f8/0xa40 [ 2496.876804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2496.876804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2496.876804][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.876804][ T254] netlink_unicast+0x449/0x710 [ 2496.876804][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.876804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.876804][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.876804][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.876804][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.876804][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2496.876804][ T254] [ 2496.878957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.878957][ T254] netdev_get_by_index+0x5e/0x80 [ 2496.878957][ T254] fib6_nh_init+0x3d8/0x1580 [ 2496.878957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2496.878957][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2496.878957][ T254] ipv6_add_addr+0x411/0x2000 [ 2496.878957][ T254] inet6_addr_add+0x30e/0xa40 [ 2496.878957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2496.878957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2496.878957][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.878957][ T254] netlink_unicast+0x449/0x710 [ 2496.878957][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.878957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.878957][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.878957][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.878957][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.878957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2496.878957][ T254] [ 2496.881156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.881156][ T254] netdev_get_by_index+0x5e/0x80 [ 2496.881156][ T254] fib6_nh_init+0x3d8/0x1580 [ 2496.881156][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2496.881156][ T254] ip6_route_add+0x1c/0x140 [ 2496.881156][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2496.881156][ T254] addrconf_add_dev+0xe2/0x170 [ 2496.881156][ T254] inet6_addr_add+0x12f/0xa40 [ 2496.881156][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2496.881156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2496.881156][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.881156][ T254] netlink_unicast+0x449/0x710 [ 2496.881156][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.881156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.881156][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.881156][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.881156][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.881156][ T254] [ 2496.883306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.883306][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2496.883306][ T254] ipv6_find_idev+0x102/0x170 [ 2496.883306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2496.883306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2496.883306][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.883306][ T254] netlink_unicast+0x449/0x710 [ 2496.883306][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.883306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.883306][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.883306][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.883306][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.883306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2496.883306][ T254] [ 2496.884931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2496.884931][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2496.884931][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2496.884931][ T254] ipv6_find_idev+0x102/0x170 [ 2496.884931][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2496.884931][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2496.884931][ T254] netlink_rcv_skb+0x130/0x360 [ 2496.884931][ T254] netlink_unicast+0x449/0x710 [ 2496.884931][ T254] netlink_sendmsg+0x723/0xbe0 [ 2496.884931][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2496.884931][ T254] ___sys_sendmsg+0xee/0x170 [ 2496.884931][ T254] __sys_sendmsg+0xcd/0x170 [ 2496.884931][ T254] do_syscall_64+0xc6/0x1e0 [ 2496.884931][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2496.884931][ T254] [ 2507.127873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2507.128433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.128433][ T254] dst_init+0x84/0x4a0 [ 2507.128433][ T254] dst_alloc+0x97/0x150 [ 2507.128433][ T254] ip6_dst_alloc+0x23/0x90 [ 2507.128433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2507.128433][ T254] ip6_pol_route+0x56f/0x840 [ 2507.128433][ T254] fib6_rule_lookup+0x334/0x630 [ 2507.128433][ T254] ip6_route_output_flags+0x259/0x480 [ 2507.128433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2507.128433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2507.128433][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.128433][ T254] netlink_unicast+0x449/0x710 [ 2507.128433][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.128433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.128433][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.128433][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.128433][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.128433][ T254] [ 2507.130593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.130593][ T254] netdev_get_by_index+0x5e/0x80 [ 2507.130593][ T254] fib6_nh_init+0x3d8/0x1580 [ 2507.130593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2507.130593][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2507.130593][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2507.130593][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2507.130593][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2507.130593][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2507.130593][ T254] addrconf_dad_begin+0x310/0x670 [ 2507.130593][ T254] addrconf_dad_work+0x10b/0xab0 [ 2507.130593][ T254] process_one_work+0x84d/0x18a0 [ 2507.130593][ T254] worker_thread+0x587/0xd30 [ 2507.130593][ T254] kthread+0x28a/0x350 [ 2507.130593][ T254] ret_from_fork+0x31/0x70 [ 2507.130593][ T254] ret_from_fork_asm+0x1a/0x30 [ 2507.130593][ T254] [ 2507.132614][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.132614][ T254] netdev_get_by_index+0x5e/0x80 [ 2507.132614][ T254] fib6_nh_init+0x3d8/0x1580 [ 2507.132614][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2507.132614][ T254] ip6_route_add+0x1c/0x140 [ 2507.132614][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2507.132614][ T254] inet6_addr_add+0x4f8/0xa40 [ 2507.132614][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2507.132614][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2507.132614][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.132614][ T254] netlink_unicast+0x449/0x710 [ 2507.132614][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.132614][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.132614][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.132614][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.132614][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.132614][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2507.132614][ T254] [ 2507.134767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.134767][ T254] netdev_get_by_index+0x5e/0x80 [ 2507.134767][ T254] fib6_nh_init+0x3d8/0x1580 [ 2507.134767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2507.134767][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2507.134767][ T254] ipv6_add_addr+0x411/0x2000 [ 2507.134767][ T254] inet6_addr_add+0x30e/0xa40 [ 2507.134767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2507.134767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2507.134767][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.134767][ T254] netlink_unicast+0x449/0x710 [ 2507.134767][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.134767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.134767][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.134767][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.134767][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.134767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2507.134767][ T254] [ 2507.137021][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.137021][ T254] netdev_get_by_index+0x5e/0x80 [ 2507.137021][ T254] fib6_nh_init+0x3d8/0x1580 [ 2507.137021][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2507.137021][ T254] ip6_route_add+0x1c/0x140 [ 2507.137021][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2507.137021][ T254] addrconf_add_dev+0xe2/0x170 [ 2507.137021][ T254] inet6_addr_add+0x12f/0xa40 [ 2507.137021][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2507.137021][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2507.137021][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.137021][ T254] netlink_unicast+0x449/0x710 [ 2507.137021][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.137021][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.137021][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.137021][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.137021][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.137021][ T254] [ 2507.139197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.139197][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2507.139197][ T254] ipv6_find_idev+0x102/0x170 [ 2507.139197][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2507.139197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2507.139197][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.139197][ T254] netlink_unicast+0x449/0x710 [ 2507.139197][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.139197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.139197][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.139197][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.139197][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.139197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2507.139197][ T254] [ 2507.140820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2507.140820][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2507.140820][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2507.140820][ T254] ipv6_find_idev+0x102/0x170 [ 2507.140820][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2507.140820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2507.140820][ T254] netlink_rcv_skb+0x130/0x360 [ 2507.140820][ T254] netlink_unicast+0x449/0x710 [ 2507.140820][ T254] netlink_sendmsg+0x723/0xbe0 [ 2507.140820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2507.140820][ T254] ___sys_sendmsg+0xee/0x170 [ 2507.140820][ T254] __sys_sendmsg+0xcd/0x170 [ 2507.140820][ T254] do_syscall_64+0xc6/0x1e0 [ 2507.140820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2507.140820][ T254] [ 2517.375871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2517.376538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.376538][ T254] dst_init+0x84/0x4a0 [ 2517.376538][ T254] dst_alloc+0x97/0x150 [ 2517.376538][ T254] ip6_dst_alloc+0x23/0x90 [ 2517.376538][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2517.376538][ T254] ip6_pol_route+0x56f/0x840 [ 2517.376538][ T254] fib6_rule_lookup+0x334/0x630 [ 2517.376538][ T254] ip6_route_output_flags+0x259/0x480 [ 2517.376538][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2517.376538][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2517.376538][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.376538][ T254] netlink_unicast+0x449/0x710 [ 2517.376538][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.376538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.376538][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.376538][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.376538][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.376538][ T254] [ 2517.378617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.378617][ T254] netdev_get_by_index+0x5e/0x80 [ 2517.378617][ T254] fib6_nh_init+0x3d8/0x1580 [ 2517.378617][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2517.378617][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2517.378617][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2517.378617][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2517.378617][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2517.378617][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2517.378617][ T254] addrconf_dad_begin+0x310/0x670 [ 2517.378617][ T254] addrconf_dad_work+0x10b/0xab0 [ 2517.378617][ T254] process_one_work+0x84d/0x18a0 [ 2517.378617][ T254] worker_thread+0x587/0xd30 [ 2517.378617][ T254] kthread+0x28a/0x350 [ 2517.378617][ T254] ret_from_fork+0x31/0x70 [ 2517.378617][ T254] ret_from_fork_asm+0x1a/0x30 [ 2517.378617][ T254] [ 2517.380698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.380698][ T254] netdev_get_by_index+0x5e/0x80 [ 2517.380698][ T254] fib6_nh_init+0x3d8/0x1580 [ 2517.380698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2517.380698][ T254] ip6_route_add+0x1c/0x140 [ 2517.380698][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2517.380698][ T254] inet6_addr_add+0x4f8/0xa40 [ 2517.380698][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2517.380698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2517.380698][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.380698][ T254] netlink_unicast+0x449/0x710 [ 2517.380698][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.380698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.380698][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.380698][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.380698][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.380698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2517.380698][ T254] [ 2517.382958][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.382958][ T254] netdev_get_by_index+0x5e/0x80 [ 2517.382958][ T254] fib6_nh_init+0x3d8/0x1580 [ 2517.382958][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2517.382958][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2517.382958][ T254] ipv6_add_addr+0x411/0x2000 [ 2517.382958][ T254] inet6_addr_add+0x30e/0xa40 [ 2517.382958][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2517.382958][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2517.382958][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.382958][ T254] netlink_unicast+0x449/0x710 [ 2517.382958][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.382958][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.382958][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.382958][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.382958][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.382958][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2517.382958][ T254] [ 2517.385209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.385209][ T254] netdev_get_by_index+0x5e/0x80 [ 2517.385209][ T254] fib6_nh_init+0x3d8/0x1580 [ 2517.385209][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2517.385209][ T254] ip6_route_add+0x1c/0x140 [ 2517.385209][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2517.385209][ T254] addrconf_add_dev+0xe2/0x170 [ 2517.385209][ T254] inet6_addr_add+0x12f/0xa40 [ 2517.385209][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2517.385209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2517.385209][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.385209][ T254] netlink_unicast+0x449/0x710 [ 2517.385209][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.385209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.385209][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.385209][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.385209][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.385209][ T254] [ 2517.387484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.387484][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2517.387484][ T254] ipv6_find_idev+0x102/0x170 [ 2517.387484][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2517.387484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2517.387484][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.387484][ T254] netlink_unicast+0x449/0x710 [ 2517.387484][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.387484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.387484][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.387484][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.387484][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.387484][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2517.387484][ T254] [ 2517.389249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2517.389249][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2517.389249][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2517.389249][ T254] ipv6_find_idev+0x102/0x170 [ 2517.389249][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2517.389249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2517.389249][ T254] netlink_rcv_skb+0x130/0x360 [ 2517.389249][ T254] netlink_unicast+0x449/0x710 [ 2517.389249][ T254] netlink_sendmsg+0x723/0xbe0 [ 2517.389249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2517.389249][ T254] ___sys_sendmsg+0xee/0x170 [ 2517.389249][ T254] __sys_sendmsg+0xcd/0x170 [ 2517.389249][ T254] do_syscall_64+0xc6/0x1e0 [ 2517.389249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2517.389249][ T254] [ 2527.631897][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2527.632550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.632550][ T254] dst_init+0x84/0x4a0 [ 2527.632550][ T254] dst_alloc+0x97/0x150 [ 2527.632550][ T254] ip6_dst_alloc+0x23/0x90 [ 2527.632550][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2527.632550][ T254] ip6_pol_route+0x56f/0x840 [ 2527.632550][ T254] fib6_rule_lookup+0x334/0x630 [ 2527.632550][ T254] ip6_route_output_flags+0x259/0x480 [ 2527.632550][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2527.632550][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2527.632550][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.632550][ T254] netlink_unicast+0x449/0x710 [ 2527.632550][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.632550][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.632550][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.632550][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.632550][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.632550][ T254] [ 2527.634619][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.634619][ T254] netdev_get_by_index+0x5e/0x80 [ 2527.634619][ T254] fib6_nh_init+0x3d8/0x1580 [ 2527.634619][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2527.634619][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2527.634619][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2527.634619][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2527.634619][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2527.634619][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2527.634619][ T254] addrconf_dad_begin+0x310/0x670 [ 2527.634619][ T254] addrconf_dad_work+0x10b/0xab0 [ 2527.634619][ T254] process_one_work+0x84d/0x18a0 [ 2527.634619][ T254] worker_thread+0x587/0xd30 [ 2527.634619][ T254] kthread+0x28a/0x350 [ 2527.634619][ T254] ret_from_fork+0x31/0x70 [ 2527.634619][ T254] ret_from_fork_asm+0x1a/0x30 [ 2527.634619][ T254] [ 2527.636705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.636705][ T254] netdev_get_by_index+0x5e/0x80 [ 2527.636705][ T254] fib6_nh_init+0x3d8/0x1580 [ 2527.636705][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2527.636705][ T254] ip6_route_add+0x1c/0x140 [ 2527.636705][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2527.636705][ T254] inet6_addr_add+0x4f8/0xa40 [ 2527.636705][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2527.636705][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2527.636705][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.636705][ T254] netlink_unicast+0x449/0x710 [ 2527.636705][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.636705][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.636705][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.636705][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.636705][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.636705][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2527.636705][ T254] [ 2527.638858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.638858][ T254] netdev_get_by_index+0x5e/0x80 [ 2527.638858][ T254] fib6_nh_init+0x3d8/0x1580 [ 2527.638858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2527.638858][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2527.638858][ T254] ipv6_add_addr+0x411/0x2000 [ 2527.638858][ T254] inet6_addr_add+0x30e/0xa40 [ 2527.638858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2527.638858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2527.638858][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.638858][ T254] netlink_unicast+0x449/0x710 [ 2527.638858][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.638858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.638858][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.638858][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.638858][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.638858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2527.638858][ T254] [ 2527.641028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.641028][ T254] netdev_get_by_index+0x5e/0x80 [ 2527.641028][ T254] fib6_nh_init+0x3d8/0x1580 [ 2527.641028][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2527.641028][ T254] ip6_route_add+0x1c/0x140 [ 2527.641028][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2527.641028][ T254] addrconf_add_dev+0xe2/0x170 [ 2527.641028][ T254] inet6_addr_add+0x12f/0xa40 [ 2527.641028][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2527.641028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2527.641028][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.641028][ T254] netlink_unicast+0x449/0x710 [ 2527.641028][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.641028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.641028][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.641028][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.641028][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.641028][ T254] [ 2527.643146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.643146][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2527.643146][ T254] ipv6_find_idev+0x102/0x170 [ 2527.643146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2527.643146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2527.643146][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.643146][ T254] netlink_unicast+0x449/0x710 [ 2527.643146][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.643146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.643146][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.643146][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.643146][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.643146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2527.643146][ T254] [ 2527.644930][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2527.644930][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2527.644930][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2527.644930][ T254] ipv6_find_idev+0x102/0x170 [ 2527.644930][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2527.644930][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2527.644930][ T254] netlink_rcv_skb+0x130/0x360 [ 2527.644930][ T254] netlink_unicast+0x449/0x710 [ 2527.644930][ T254] netlink_sendmsg+0x723/0xbe0 [ 2527.644930][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2527.644930][ T254] ___sys_sendmsg+0xee/0x170 [ 2527.644930][ T254] __sys_sendmsg+0xcd/0x170 [ 2527.644930][ T254] do_syscall_64+0xc6/0x1e0 [ 2527.644930][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2527.644930][ T254] [ 2537.887913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2537.889172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.889172][ T254] dst_init+0x84/0x4a0 [ 2537.889172][ T254] dst_alloc+0x97/0x150 [ 2537.889172][ T254] ip6_dst_alloc+0x23/0x90 [ 2537.889172][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2537.889172][ T254] ip6_pol_route+0x56f/0x840 [ 2537.889172][ T254] fib6_rule_lookup+0x334/0x630 [ 2537.889172][ T254] ip6_route_output_flags+0x259/0x480 [ 2537.889172][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2537.889172][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2537.889172][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.889172][ T254] netlink_unicast+0x449/0x710 [ 2537.889172][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.889172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.889172][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.889172][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.889172][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.889172][ T254] [ 2537.891409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.891409][ T254] netdev_get_by_index+0x5e/0x80 [ 2537.891409][ T254] fib6_nh_init+0x3d8/0x1580 [ 2537.891409][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2537.891409][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2537.891409][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2537.891409][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2537.891409][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2537.891409][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2537.891409][ T254] addrconf_dad_begin+0x310/0x670 [ 2537.891409][ T254] addrconf_dad_work+0x10b/0xab0 [ 2537.891409][ T254] process_one_work+0x84d/0x18a0 [ 2537.891409][ T254] worker_thread+0x587/0xd30 [ 2537.891409][ T254] kthread+0x28a/0x350 [ 2537.891409][ T254] ret_from_fork+0x31/0x70 [ 2537.891409][ T254] ret_from_fork_asm+0x1a/0x30 [ 2537.891409][ T254] [ 2537.893634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.893634][ T254] netdev_get_by_index+0x5e/0x80 [ 2537.893634][ T254] fib6_nh_init+0x3d8/0x1580 [ 2537.893634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2537.893634][ T254] ip6_route_add+0x1c/0x140 [ 2537.893634][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2537.893634][ T254] inet6_addr_add+0x4f8/0xa40 [ 2537.893634][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2537.893634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2537.893634][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.893634][ T254] netlink_unicast+0x449/0x710 [ 2537.893634][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.893634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.893634][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.893634][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.893634][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.893634][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2537.893634][ T254] [ 2537.895949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.895949][ T254] netdev_get_by_index+0x5e/0x80 [ 2537.895949][ T254] fib6_nh_init+0x3d8/0x1580 [ 2537.895949][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2537.895949][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2537.895949][ T254] ipv6_add_addr+0x411/0x2000 [ 2537.895949][ T254] inet6_addr_add+0x30e/0xa40 [ 2537.895949][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2537.895949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2537.895949][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.895949][ T254] netlink_unicast+0x449/0x710 [ 2537.895949][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.895949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.895949][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.895949][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.895949][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.895949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2537.895949][ T254] [ 2537.898196][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.898196][ T254] netdev_get_by_index+0x5e/0x80 [ 2537.898196][ T254] fib6_nh_init+0x3d8/0x1580 [ 2537.898196][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2537.898196][ T254] ip6_route_add+0x1c/0x140 [ 2537.898196][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2537.898196][ T254] addrconf_add_dev+0xe2/0x170 [ 2537.898196][ T254] inet6_addr_add+0x12f/0xa40 [ 2537.898196][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2537.898196][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2537.898196][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.898196][ T254] netlink_unicast+0x449/0x710 [ 2537.898196][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.898196][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.898196][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.898196][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.898196][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.898196][ T254] [ 2537.900363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.900363][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2537.900363][ T254] ipv6_find_idev+0x102/0x170 [ 2537.900363][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2537.900363][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2537.900363][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.900363][ T254] netlink_unicast+0x449/0x710 [ 2537.900363][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.900363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.900363][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.900363][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.900363][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.900363][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2537.900363][ T254] [ 2537.902078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2537.902078][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2537.902078][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2537.902078][ T254] ipv6_find_idev+0x102/0x170 [ 2537.902078][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2537.902078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2537.902078][ T254] netlink_rcv_skb+0x130/0x360 [ 2537.902078][ T254] netlink_unicast+0x449/0x710 [ 2537.902078][ T254] netlink_sendmsg+0x723/0xbe0 [ 2537.902078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2537.902078][ T254] ___sys_sendmsg+0xee/0x170 [ 2537.902078][ T254] __sys_sendmsg+0xcd/0x170 [ 2537.902078][ T254] do_syscall_64+0xc6/0x1e0 [ 2537.902078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2537.902078][ T254] [ 2548.119939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2548.120502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.120502][ T254] dst_init+0x84/0x4a0 [ 2548.120502][ T254] dst_alloc+0x97/0x150 [ 2548.120502][ T254] ip6_dst_alloc+0x23/0x90 [ 2548.120502][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2548.120502][ T254] ip6_pol_route+0x56f/0x840 [ 2548.120502][ T254] fib6_rule_lookup+0x334/0x630 [ 2548.120502][ T254] ip6_route_output_flags+0x259/0x480 [ 2548.120502][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2548.120502][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2548.120502][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.120502][ T254] netlink_unicast+0x449/0x710 [ 2548.120502][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.120502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.120502][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.120502][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.120502][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.120502][ T254] [ 2548.122654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.122654][ T254] netdev_get_by_index+0x5e/0x80 [ 2548.122654][ T254] fib6_nh_init+0x3d8/0x1580 [ 2548.122654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2548.122654][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2548.122654][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2548.122654][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2548.122654][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2548.122654][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2548.122654][ T254] addrconf_dad_begin+0x310/0x670 [ 2548.122654][ T254] addrconf_dad_work+0x10b/0xab0 [ 2548.122654][ T254] process_one_work+0x84d/0x18a0 [ 2548.122654][ T254] worker_thread+0x587/0xd30 [ 2548.122654][ T254] kthread+0x28a/0x350 [ 2548.122654][ T254] ret_from_fork+0x31/0x70 [ 2548.122654][ T254] ret_from_fork_asm+0x1a/0x30 [ 2548.122654][ T254] [ 2548.124845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.124845][ T254] netdev_get_by_index+0x5e/0x80 [ 2548.124845][ T254] fib6_nh_init+0x3d8/0x1580 [ 2548.124845][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2548.124845][ T254] ip6_route_add+0x1c/0x140 [ 2548.124845][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2548.124845][ T254] inet6_addr_add+0x4f8/0xa40 [ 2548.124845][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2548.124845][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2548.124845][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.124845][ T254] netlink_unicast+0x449/0x710 [ 2548.124845][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.124845][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.124845][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.124845][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.124845][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.124845][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2548.124845][ T254] [ 2548.127094][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.127094][ T254] netdev_get_by_index+0x5e/0x80 [ 2548.127094][ T254] fib6_nh_init+0x3d8/0x1580 [ 2548.127094][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2548.127094][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2548.127094][ T254] ipv6_add_addr+0x411/0x2000 [ 2548.127094][ T254] inet6_addr_add+0x30e/0xa40 [ 2548.127094][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2548.127094][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2548.127094][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.127094][ T254] netlink_unicast+0x449/0x710 [ 2548.127094][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.127094][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.127094][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.127094][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.127094][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.127094][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2548.127094][ T254] [ 2548.129316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.129316][ T254] netdev_get_by_index+0x5e/0x80 [ 2548.129316][ T254] fib6_nh_init+0x3d8/0x1580 [ 2548.129316][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2548.129316][ T254] ip6_route_add+0x1c/0x140 [ 2548.129316][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2548.129316][ T254] addrconf_add_dev+0xe2/0x170 [ 2548.129316][ T254] inet6_addr_add+0x12f/0xa40 [ 2548.129316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2548.129316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2548.129316][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.129316][ T254] netlink_unicast+0x449/0x710 [ 2548.129316][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.129316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.129316][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.129316][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.129316][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.129316][ T254] [ 2548.131521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.131521][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2548.131521][ T254] ipv6_find_idev+0x102/0x170 [ 2548.131521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2548.131521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2548.131521][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.131521][ T254] netlink_unicast+0x449/0x710 [ 2548.131521][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.131521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.131521][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.131521][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.131521][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.131521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2548.131521][ T254] [ 2548.133204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2548.133204][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2548.133204][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2548.133204][ T254] ipv6_find_idev+0x102/0x170 [ 2548.133204][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2548.133204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2548.133204][ T254] netlink_rcv_skb+0x130/0x360 [ 2548.133204][ T254] netlink_unicast+0x449/0x710 [ 2548.133204][ T254] netlink_sendmsg+0x723/0xbe0 [ 2548.133204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2548.133204][ T254] ___sys_sendmsg+0xee/0x170 [ 2548.133204][ T254] __sys_sendmsg+0xcd/0x170 [ 2548.133204][ T254] do_syscall_64+0xc6/0x1e0 [ 2548.133204][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2548.133204][ T254] [ 2558.383854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2558.384368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.384368][ T254] dst_init+0x84/0x4a0 [ 2558.384368][ T254] dst_alloc+0x97/0x150 [ 2558.384368][ T254] ip6_dst_alloc+0x23/0x90 [ 2558.384368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2558.384368][ T254] ip6_pol_route+0x56f/0x840 [ 2558.384368][ T254] fib6_rule_lookup+0x334/0x630 [ 2558.384368][ T254] ip6_route_output_flags+0x259/0x480 [ 2558.384368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2558.384368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2558.384368][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.384368][ T254] netlink_unicast+0x449/0x710 [ 2558.384368][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.384368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.384368][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.384368][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.384368][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.384368][ T254] [ 2558.386577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.386577][ T254] netdev_get_by_index+0x5e/0x80 [ 2558.386577][ T254] fib6_nh_init+0x3d8/0x1580 [ 2558.386577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2558.386577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2558.386577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2558.386577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2558.386577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2558.386577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2558.386577][ T254] addrconf_dad_begin+0x310/0x670 [ 2558.386577][ T254] addrconf_dad_work+0x10b/0xab0 [ 2558.386577][ T254] process_one_work+0x84d/0x18a0 [ 2558.386577][ T254] worker_thread+0x587/0xd30 [ 2558.386577][ T254] kthread+0x28a/0x350 [ 2558.386577][ T254] ret_from_fork+0x31/0x70 [ 2558.386577][ T254] ret_from_fork_asm+0x1a/0x30 [ 2558.386577][ T254] [ 2558.388709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.388709][ T254] netdev_get_by_index+0x5e/0x80 [ 2558.388709][ T254] fib6_nh_init+0x3d8/0x1580 [ 2558.388709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2558.388709][ T254] ip6_route_add+0x1c/0x140 [ 2558.388709][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2558.388709][ T254] inet6_addr_add+0x4f8/0xa40 [ 2558.388709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2558.388709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2558.388709][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.388709][ T254] netlink_unicast+0x449/0x710 [ 2558.388709][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.388709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.388709][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.388709][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.388709][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.388709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2558.388709][ T254] [ 2558.390988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.390988][ T254] netdev_get_by_index+0x5e/0x80 [ 2558.390988][ T254] fib6_nh_init+0x3d8/0x1580 [ 2558.390988][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2558.390988][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2558.390988][ T254] ipv6_add_addr+0x411/0x2000 [ 2558.390988][ T254] inet6_addr_add+0x30e/0xa40 [ 2558.390988][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2558.390988][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2558.390988][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.390988][ T254] netlink_unicast+0x449/0x710 [ 2558.390988][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.390988][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.390988][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.390988][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.390988][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.390988][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2558.390988][ T254] [ 2558.393262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.393262][ T254] netdev_get_by_index+0x5e/0x80 [ 2558.393262][ T254] fib6_nh_init+0x3d8/0x1580 [ 2558.393262][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2558.393262][ T254] ip6_route_add+0x1c/0x140 [ 2558.393262][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2558.393262][ T254] addrconf_add_dev+0xe2/0x170 [ 2558.393262][ T254] inet6_addr_add+0x12f/0xa40 [ 2558.393262][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2558.393262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2558.393262][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.393262][ T254] netlink_unicast+0x449/0x710 [ 2558.393262][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.393262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.393262][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.393262][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.393262][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.393262][ T254] [ 2558.395457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.395457][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2558.395457][ T254] ipv6_find_idev+0x102/0x170 [ 2558.395457][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2558.395457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2558.395457][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.395457][ T254] netlink_unicast+0x449/0x710 [ 2558.395457][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.395457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.395457][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.395457][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.395457][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.395457][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2558.395457][ T254] [ 2558.397177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2558.397177][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2558.397177][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2558.397177][ T254] ipv6_find_idev+0x102/0x170 [ 2558.397177][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2558.397177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2558.397177][ T254] netlink_rcv_skb+0x130/0x360 [ 2558.397177][ T254] netlink_unicast+0x449/0x710 [ 2558.397177][ T254] netlink_sendmsg+0x723/0xbe0 [ 2558.397177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2558.397177][ T254] ___sys_sendmsg+0xee/0x170 [ 2558.397177][ T254] __sys_sendmsg+0xcd/0x170 [ 2558.397177][ T254] do_syscall_64+0xc6/0x1e0 [ 2558.397177][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2558.397177][ T254] [ 2568.607883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2568.608353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.608353][ T254] dst_init+0x84/0x4a0 [ 2568.608353][ T254] dst_alloc+0x97/0x150 [ 2568.608353][ T254] ip6_dst_alloc+0x23/0x90 [ 2568.608353][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2568.608353][ T254] ip6_pol_route+0x56f/0x840 [ 2568.608353][ T254] fib6_rule_lookup+0x334/0x630 [ 2568.608353][ T254] ip6_route_output_flags+0x259/0x480 [ 2568.608353][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2568.608353][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2568.608353][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.608353][ T254] netlink_unicast+0x449/0x710 [ 2568.608353][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.608353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.608353][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.608353][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.608353][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.608353][ T254] [ 2568.610559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.610559][ T254] netdev_get_by_index+0x5e/0x80 [ 2568.610559][ T254] fib6_nh_init+0x3d8/0x1580 [ 2568.610559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2568.610559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2568.610559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2568.610559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2568.610559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2568.610559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2568.610559][ T254] addrconf_dad_begin+0x310/0x670 [ 2568.610559][ T254] addrconf_dad_work+0x10b/0xab0 [ 2568.610559][ T254] process_one_work+0x84d/0x18a0 [ 2568.610559][ T254] worker_thread+0x587/0xd30 [ 2568.610559][ T254] kthread+0x28a/0x350 [ 2568.610559][ T254] ret_from_fork+0x31/0x70 [ 2568.610559][ T254] ret_from_fork_asm+0x1a/0x30 [ 2568.610559][ T254] [ 2568.612739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.612739][ T254] netdev_get_by_index+0x5e/0x80 [ 2568.612739][ T254] fib6_nh_init+0x3d8/0x1580 [ 2568.612739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2568.612739][ T254] ip6_route_add+0x1c/0x140 [ 2568.612739][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2568.612739][ T254] inet6_addr_add+0x4f8/0xa40 [ 2568.612739][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2568.612739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2568.612739][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.612739][ T254] netlink_unicast+0x449/0x710 [ 2568.612739][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.612739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.612739][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.612739][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.612739][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.612739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2568.612739][ T254] [ 2568.615020][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.615020][ T254] netdev_get_by_index+0x5e/0x80 [ 2568.615020][ T254] fib6_nh_init+0x3d8/0x1580 [ 2568.615020][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2568.615020][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2568.615020][ T254] ipv6_add_addr+0x411/0x2000 [ 2568.615020][ T254] inet6_addr_add+0x30e/0xa40 [ 2568.615020][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2568.615020][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2568.615020][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.615020][ T254] netlink_unicast+0x449/0x710 [ 2568.615020][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.615020][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.615020][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.615020][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.615020][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.615020][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2568.615020][ T254] [ 2568.617263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.617263][ T254] netdev_get_by_index+0x5e/0x80 [ 2568.617263][ T254] fib6_nh_init+0x3d8/0x1580 [ 2568.617263][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2568.617263][ T254] ip6_route_add+0x1c/0x140 [ 2568.617263][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2568.617263][ T254] addrconf_add_dev+0xe2/0x170 [ 2568.617263][ T254] inet6_addr_add+0x12f/0xa40 [ 2568.617263][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2568.617263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2568.617263][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.617263][ T254] netlink_unicast+0x449/0x710 [ 2568.617263][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.617263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.617263][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.617263][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.617263][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.617263][ T254] [ 2568.619461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.619461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2568.619461][ T254] ipv6_find_idev+0x102/0x170 [ 2568.619461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2568.619461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2568.619461][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.619461][ T254] netlink_unicast+0x449/0x710 [ 2568.619461][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.619461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.619461][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.619461][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.619461][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.619461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2568.619461][ T254] [ 2568.621182][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2568.621182][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2568.621182][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2568.621182][ T254] ipv6_find_idev+0x102/0x170 [ 2568.621182][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2568.621182][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2568.621182][ T254] netlink_rcv_skb+0x130/0x360 [ 2568.621182][ T254] netlink_unicast+0x449/0x710 [ 2568.621182][ T254] netlink_sendmsg+0x723/0xbe0 [ 2568.621182][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2568.621182][ T254] ___sys_sendmsg+0xee/0x170 [ 2568.621182][ T254] __sys_sendmsg+0xcd/0x170 [ 2568.621182][ T254] do_syscall_64+0xc6/0x1e0 [ 2568.621182][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2568.621182][ T254] [ 2578.863895][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2578.864421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.864421][ T254] dst_init+0x84/0x4a0 [ 2578.864421][ T254] dst_alloc+0x97/0x150 [ 2578.864421][ T254] ip6_dst_alloc+0x23/0x90 [ 2578.864421][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2578.864421][ T254] ip6_pol_route+0x56f/0x840 [ 2578.864421][ T254] fib6_rule_lookup+0x334/0x630 [ 2578.864421][ T254] ip6_route_output_flags+0x259/0x480 [ 2578.864421][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2578.864421][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2578.864421][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.864421][ T254] netlink_unicast+0x449/0x710 [ 2578.864421][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.864421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.864421][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.864421][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.864421][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.864421][ T254] [ 2578.866653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.866653][ T254] netdev_get_by_index+0x5e/0x80 [ 2578.866653][ T254] fib6_nh_init+0x3d8/0x1580 [ 2578.866653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2578.866653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2578.866653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2578.866653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2578.866653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2578.866653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2578.866653][ T254] addrconf_dad_begin+0x310/0x670 [ 2578.866653][ T254] addrconf_dad_work+0x10b/0xab0 [ 2578.866653][ T254] process_one_work+0x84d/0x18a0 [ 2578.866653][ T254] worker_thread+0x587/0xd30 [ 2578.866653][ T254] kthread+0x28a/0x350 [ 2578.866653][ T254] ret_from_fork+0x31/0x70 [ 2578.866653][ T254] ret_from_fork_asm+0x1a/0x30 [ 2578.866653][ T254] [ 2578.868809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.868809][ T254] netdev_get_by_index+0x5e/0x80 [ 2578.868809][ T254] fib6_nh_init+0x3d8/0x1580 [ 2578.868809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2578.868809][ T254] ip6_route_add+0x1c/0x140 [ 2578.868809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2578.868809][ T254] inet6_addr_add+0x4f8/0xa40 [ 2578.868809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2578.868809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2578.868809][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.868809][ T254] netlink_unicast+0x449/0x710 [ 2578.868809][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.868809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.868809][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.868809][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.868809][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.868809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2578.868809][ T254] [ 2578.871043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.871043][ T254] netdev_get_by_index+0x5e/0x80 [ 2578.871043][ T254] fib6_nh_init+0x3d8/0x1580 [ 2578.871043][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2578.871043][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2578.871043][ T254] ipv6_add_addr+0x411/0x2000 [ 2578.871043][ T254] inet6_addr_add+0x30e/0xa40 [ 2578.871043][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2578.871043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2578.871043][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.871043][ T254] netlink_unicast+0x449/0x710 [ 2578.871043][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.871043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.871043][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.871043][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.871043][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.871043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2578.871043][ T254] [ 2578.873289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.873289][ T254] netdev_get_by_index+0x5e/0x80 [ 2578.873289][ T254] fib6_nh_init+0x3d8/0x1580 [ 2578.873289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2578.873289][ T254] ip6_route_add+0x1c/0x140 [ 2578.873289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2578.873289][ T254] addrconf_add_dev+0xe2/0x170 [ 2578.873289][ T254] inet6_addr_add+0x12f/0xa40 [ 2578.873289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2578.873289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2578.873289][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.873289][ T254] netlink_unicast+0x449/0x710 [ 2578.873289][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.873289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.873289][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.873289][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.873289][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.873289][ T254] [ 2578.875500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.875500][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2578.875500][ T254] ipv6_find_idev+0x102/0x170 [ 2578.875500][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2578.875500][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2578.875500][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.875500][ T254] netlink_unicast+0x449/0x710 [ 2578.875500][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.875500][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.875500][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.875500][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.875500][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.875500][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2578.875500][ T254] [ 2578.877226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2578.877226][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2578.877226][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2578.877226][ T254] ipv6_find_idev+0x102/0x170 [ 2578.877226][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2578.877226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2578.877226][ T254] netlink_rcv_skb+0x130/0x360 [ 2578.877226][ T254] netlink_unicast+0x449/0x710 [ 2578.877226][ T254] netlink_sendmsg+0x723/0xbe0 [ 2578.877226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2578.877226][ T254] ___sys_sendmsg+0xee/0x170 [ 2578.877226][ T254] __sys_sendmsg+0xcd/0x170 [ 2578.877226][ T254] do_syscall_64+0xc6/0x1e0 [ 2578.877226][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2578.877226][ T254] [ 2588.959922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2588.960597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.960597][ T254] dst_init+0x84/0x4a0 [ 2588.960597][ T254] dst_alloc+0x97/0x150 [ 2588.960597][ T254] ip6_dst_alloc+0x23/0x90 [ 2588.960597][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2588.960597][ T254] ip6_pol_route+0x56f/0x840 [ 2588.960597][ T254] fib6_rule_lookup+0x334/0x630 [ 2588.960597][ T254] ip6_route_output_flags+0x259/0x480 [ 2588.960597][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2588.960597][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2588.960597][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.960597][ T254] netlink_unicast+0x449/0x710 [ 2588.960597][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.960597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.960597][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.960597][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.960597][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.960597][ T254] [ 2588.962753][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.962753][ T254] netdev_get_by_index+0x5e/0x80 [ 2588.962753][ T254] fib6_nh_init+0x3d8/0x1580 [ 2588.962753][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2588.962753][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2588.962753][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2588.962753][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2588.962753][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2588.962753][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2588.962753][ T254] addrconf_dad_begin+0x310/0x670 [ 2588.962753][ T254] addrconf_dad_work+0x10b/0xab0 [ 2588.962753][ T254] process_one_work+0x84d/0x18a0 [ 2588.962753][ T254] worker_thread+0x587/0xd30 [ 2588.962753][ T254] kthread+0x28a/0x350 [ 2588.962753][ T254] ret_from_fork+0x31/0x70 [ 2588.962753][ T254] ret_from_fork_asm+0x1a/0x30 [ 2588.962753][ T254] [ 2588.964864][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.964864][ T254] netdev_get_by_index+0x5e/0x80 [ 2588.964864][ T254] fib6_nh_init+0x3d8/0x1580 [ 2588.964864][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2588.964864][ T254] ip6_route_add+0x1c/0x140 [ 2588.964864][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2588.964864][ T254] inet6_addr_add+0x4f8/0xa40 [ 2588.964864][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2588.964864][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2588.964864][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.964864][ T254] netlink_unicast+0x449/0x710 [ 2588.964864][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.964864][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.964864][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.964864][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.964864][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.964864][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2588.964864][ T254] [ 2588.967049][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.967049][ T254] netdev_get_by_index+0x5e/0x80 [ 2588.967049][ T254] fib6_nh_init+0x3d8/0x1580 [ 2588.967049][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2588.967049][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2588.967049][ T254] ipv6_add_addr+0x411/0x2000 [ 2588.967049][ T254] inet6_addr_add+0x30e/0xa40 [ 2588.967049][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2588.967049][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2588.967049][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.967049][ T254] netlink_unicast+0x449/0x710 [ 2588.967049][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.967049][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.967049][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.967049][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.967049][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.967049][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2588.967049][ T254] [ 2588.969238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.969238][ T254] netdev_get_by_index+0x5e/0x80 [ 2588.969238][ T254] fib6_nh_init+0x3d8/0x1580 [ 2588.969238][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2588.969238][ T254] ip6_route_add+0x1c/0x140 [ 2588.969238][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2588.969238][ T254] addrconf_add_dev+0xe2/0x170 [ 2588.969238][ T254] inet6_addr_add+0x12f/0xa40 [ 2588.969238][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2588.969238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2588.969238][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.969238][ T254] netlink_unicast+0x449/0x710 [ 2588.969238][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.969238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.969238][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.969238][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.969238][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.969238][ T254] [ 2588.971377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.971377][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2588.971377][ T254] ipv6_find_idev+0x102/0x170 [ 2588.971377][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2588.971377][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2588.971377][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.971377][ T254] netlink_unicast+0x449/0x710 [ 2588.971377][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.971377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.971377][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.971377][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.971377][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.971377][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2588.971377][ T254] [ 2588.973072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2588.973072][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2588.973072][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2588.973072][ T254] ipv6_find_idev+0x102/0x170 [ 2588.973072][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2588.973072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2588.973072][ T254] netlink_rcv_skb+0x130/0x360 [ 2588.973072][ T254] netlink_unicast+0x449/0x710 [ 2588.973072][ T254] netlink_sendmsg+0x723/0xbe0 [ 2588.973072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2588.973072][ T254] ___sys_sendmsg+0xee/0x170 [ 2588.973072][ T254] __sys_sendmsg+0xcd/0x170 [ 2588.973072][ T254] do_syscall_64+0xc6/0x1e0 [ 2588.973072][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2588.973072][ T254] [ 2599.215884][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2599.216414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.216414][ T254] dst_init+0x84/0x4a0 [ 2599.216414][ T254] dst_alloc+0x97/0x150 [ 2599.216414][ T254] ip6_dst_alloc+0x23/0x90 [ 2599.216414][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2599.216414][ T254] ip6_pol_route+0x56f/0x840 [ 2599.216414][ T254] fib6_rule_lookup+0x334/0x630 [ 2599.216414][ T254] ip6_route_output_flags+0x259/0x480 [ 2599.216414][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2599.216414][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2599.216414][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.216414][ T254] netlink_unicast+0x449/0x710 [ 2599.216414][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.216414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.216414][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.216414][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.216414][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.216414][ T254] [ 2599.218573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.218573][ T254] netdev_get_by_index+0x5e/0x80 [ 2599.218573][ T254] fib6_nh_init+0x3d8/0x1580 [ 2599.218573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2599.218573][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2599.218573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2599.218573][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2599.218573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2599.218573][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2599.218573][ T254] addrconf_dad_begin+0x310/0x670 [ 2599.218573][ T254] addrconf_dad_work+0x10b/0xab0 [ 2599.218573][ T254] process_one_work+0x84d/0x18a0 [ 2599.218573][ T254] worker_thread+0x587/0xd30 [ 2599.218573][ T254] kthread+0x28a/0x350 [ 2599.218573][ T254] ret_from_fork+0x31/0x70 [ 2599.218573][ T254] ret_from_fork_asm+0x1a/0x30 [ 2599.218573][ T254] [ 2599.220665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.220665][ T254] netdev_get_by_index+0x5e/0x80 [ 2599.220665][ T254] fib6_nh_init+0x3d8/0x1580 [ 2599.220665][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2599.220665][ T254] ip6_route_add+0x1c/0x140 [ 2599.220665][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2599.220665][ T254] inet6_addr_add+0x4f8/0xa40 [ 2599.220665][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2599.220665][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2599.220665][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.220665][ T254] netlink_unicast+0x449/0x710 [ 2599.220665][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.220665][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.220665][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.220665][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.220665][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.220665][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2599.220665][ T254] [ 2599.222850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.222850][ T254] netdev_get_by_index+0x5e/0x80 [ 2599.222850][ T254] fib6_nh_init+0x3d8/0x1580 [ 2599.222850][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2599.222850][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2599.222850][ T254] ipv6_add_addr+0x411/0x2000 [ 2599.222850][ T254] inet6_addr_add+0x30e/0xa40 [ 2599.222850][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2599.222850][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2599.222850][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.222850][ T254] netlink_unicast+0x449/0x710 [ 2599.222850][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.222850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.222850][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.222850][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.222850][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.222850][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2599.222850][ T254] [ 2599.225088][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.225088][ T254] netdev_get_by_index+0x5e/0x80 [ 2599.225088][ T254] fib6_nh_init+0x3d8/0x1580 [ 2599.225088][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2599.225088][ T254] ip6_route_add+0x1c/0x140 [ 2599.225088][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2599.225088][ T254] addrconf_add_dev+0xe2/0x170 [ 2599.225088][ T254] inet6_addr_add+0x12f/0xa40 [ 2599.225088][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2599.225088][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2599.225088][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.225088][ T254] netlink_unicast+0x449/0x710 [ 2599.225088][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.225088][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.225088][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.225088][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.225088][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.225088][ T254] [ 2599.227326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.227326][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2599.227326][ T254] ipv6_find_idev+0x102/0x170 [ 2599.227326][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2599.227326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2599.227326][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.227326][ T254] netlink_unicast+0x449/0x710 [ 2599.227326][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.227326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.227326][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.227326][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.227326][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.227326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2599.227326][ T254] [ 2599.229097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2599.229097][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2599.229097][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2599.229097][ T254] ipv6_find_idev+0x102/0x170 [ 2599.229097][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2599.229097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2599.229097][ T254] netlink_rcv_skb+0x130/0x360 [ 2599.229097][ T254] netlink_unicast+0x449/0x710 [ 2599.229097][ T254] netlink_sendmsg+0x723/0xbe0 [ 2599.229097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2599.229097][ T254] ___sys_sendmsg+0xee/0x170 [ 2599.229097][ T254] __sys_sendmsg+0xcd/0x170 [ 2599.229097][ T254] do_syscall_64+0xc6/0x1e0 [ 2599.229097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2599.229097][ T254] [ 2609.479981][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2609.480574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.480574][ T254] dst_init+0x84/0x4a0 [ 2609.480574][ T254] dst_alloc+0x97/0x150 [ 2609.480574][ T254] ip6_dst_alloc+0x23/0x90 [ 2609.480574][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2609.480574][ T254] ip6_pol_route+0x56f/0x840 [ 2609.480574][ T254] fib6_rule_lookup+0x334/0x630 [ 2609.480574][ T254] ip6_route_output_flags+0x259/0x480 [ 2609.480574][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2609.480574][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2609.480574][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.480574][ T254] netlink_unicast+0x449/0x710 [ 2609.480574][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.480574][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.480574][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.480574][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.480574][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.480574][ T254] [ 2609.482787][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.482787][ T254] netdev_get_by_index+0x5e/0x80 [ 2609.482787][ T254] fib6_nh_init+0x3d8/0x1580 [ 2609.482787][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2609.482787][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2609.482787][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2609.482787][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2609.482787][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2609.482787][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2609.482787][ T254] addrconf_dad_begin+0x310/0x670 [ 2609.482787][ T254] addrconf_dad_work+0x10b/0xab0 [ 2609.482787][ T254] process_one_work+0x84d/0x18a0 [ 2609.482787][ T254] worker_thread+0x587/0xd30 [ 2609.482787][ T254] kthread+0x28a/0x350 [ 2609.482787][ T254] ret_from_fork+0x31/0x70 [ 2609.482787][ T254] ret_from_fork_asm+0x1a/0x30 [ 2609.482787][ T254] [ 2609.485060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.485060][ T254] netdev_get_by_index+0x5e/0x80 [ 2609.485060][ T254] fib6_nh_init+0x3d8/0x1580 [ 2609.485060][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2609.485060][ T254] ip6_route_add+0x1c/0x140 [ 2609.485060][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2609.485060][ T254] inet6_addr_add+0x4f8/0xa40 [ 2609.485060][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2609.485060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2609.485060][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.485060][ T254] netlink_unicast+0x449/0x710 [ 2609.485060][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.485060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.485060][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.485060][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.485060][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.485060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2609.485060][ T254] [ 2609.487329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.487329][ T254] netdev_get_by_index+0x5e/0x80 [ 2609.487329][ T254] fib6_nh_init+0x3d8/0x1580 [ 2609.487329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2609.487329][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2609.487329][ T254] ipv6_add_addr+0x411/0x2000 [ 2609.487329][ T254] inet6_addr_add+0x30e/0xa40 [ 2609.487329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2609.487329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2609.487329][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.487329][ T254] netlink_unicast+0x449/0x710 [ 2609.487329][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.487329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.487329][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.487329][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.487329][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.487329][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2609.487329][ T254] [ 2609.489558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.489558][ T254] netdev_get_by_index+0x5e/0x80 [ 2609.489558][ T254] fib6_nh_init+0x3d8/0x1580 [ 2609.489558][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2609.489558][ T254] ip6_route_add+0x1c/0x140 [ 2609.489558][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2609.489558][ T254] addrconf_add_dev+0xe2/0x170 [ 2609.489558][ T254] inet6_addr_add+0x12f/0xa40 [ 2609.489558][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2609.489558][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2609.489558][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.489558][ T254] netlink_unicast+0x449/0x710 [ 2609.489558][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.489558][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.489558][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.489558][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.489558][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.489558][ T254] [ 2609.491700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.491700][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2609.491700][ T254] ipv6_find_idev+0x102/0x170 [ 2609.491700][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2609.491700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2609.491700][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.491700][ T254] netlink_unicast+0x449/0x710 [ 2609.491700][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.491700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.491700][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.491700][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.491700][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.491700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2609.491700][ T254] [ 2609.493379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2609.493379][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2609.493379][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2609.493379][ T254] ipv6_find_idev+0x102/0x170 [ 2609.493379][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2609.493379][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2609.493379][ T254] netlink_rcv_skb+0x130/0x360 [ 2609.493379][ T254] netlink_unicast+0x449/0x710 [ 2609.493379][ T254] netlink_sendmsg+0x723/0xbe0 [ 2609.493379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2609.493379][ T254] ___sys_sendmsg+0xee/0x170 [ 2609.493379][ T254] __sys_sendmsg+0xcd/0x170 [ 2609.493379][ T254] do_syscall_64+0xc6/0x1e0 [ 2609.493379][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2609.493379][ T254] [ 2619.743913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2619.744653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.744653][ T254] dst_init+0x84/0x4a0 [ 2619.744653][ T254] dst_alloc+0x97/0x150 [ 2619.744653][ T254] ip6_dst_alloc+0x23/0x90 [ 2619.744653][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2619.744653][ T254] ip6_pol_route+0x56f/0x840 [ 2619.744653][ T254] fib6_rule_lookup+0x334/0x630 [ 2619.744653][ T254] ip6_route_output_flags+0x259/0x480 [ 2619.744653][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2619.744653][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2619.744653][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.744653][ T254] netlink_unicast+0x449/0x710 [ 2619.744653][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.744653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.744653][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.744653][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.744653][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.744653][ T254] [ 2619.746890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.746890][ T254] netdev_get_by_index+0x5e/0x80 [ 2619.746890][ T254] fib6_nh_init+0x3d8/0x1580 [ 2619.746890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2619.746890][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2619.746890][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2619.746890][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2619.746890][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2619.746890][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2619.746890][ T254] addrconf_dad_begin+0x310/0x670 [ 2619.746890][ T254] addrconf_dad_work+0x10b/0xab0 [ 2619.746890][ T254] process_one_work+0x84d/0x18a0 [ 2619.746890][ T254] worker_thread+0x587/0xd30 [ 2619.746890][ T254] kthread+0x28a/0x350 [ 2619.746890][ T254] ret_from_fork+0x31/0x70 [ 2619.746890][ T254] ret_from_fork_asm+0x1a/0x30 [ 2619.746890][ T254] [ 2619.748984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.748984][ T254] netdev_get_by_index+0x5e/0x80 [ 2619.748984][ T254] fib6_nh_init+0x3d8/0x1580 [ 2619.748984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2619.748984][ T254] ip6_route_add+0x1c/0x140 [ 2619.748984][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2619.748984][ T254] inet6_addr_add+0x4f8/0xa40 [ 2619.748984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2619.748984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2619.748984][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.748984][ T254] netlink_unicast+0x449/0x710 [ 2619.748984][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.748984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.748984][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.748984][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.748984][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.748984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2619.748984][ T254] [ 2619.751174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.751174][ T254] netdev_get_by_index+0x5e/0x80 [ 2619.751174][ T254] fib6_nh_init+0x3d8/0x1580 [ 2619.751174][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2619.751174][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2619.751174][ T254] ipv6_add_addr+0x411/0x2000 [ 2619.751174][ T254] inet6_addr_add+0x30e/0xa40 [ 2619.751174][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2619.751174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2619.751174][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.751174][ T254] netlink_unicast+0x449/0x710 [ 2619.751174][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.751174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.751174][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.751174][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.751174][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.751174][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2619.751174][ T254] [ 2619.753354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.753354][ T254] netdev_get_by_index+0x5e/0x80 [ 2619.753354][ T254] fib6_nh_init+0x3d8/0x1580 [ 2619.753354][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2619.753354][ T254] ip6_route_add+0x1c/0x140 [ 2619.753354][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2619.753354][ T254] addrconf_add_dev+0xe2/0x170 [ 2619.753354][ T254] inet6_addr_add+0x12f/0xa40 [ 2619.753354][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2619.753354][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2619.753354][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.753354][ T254] netlink_unicast+0x449/0x710 [ 2619.753354][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.753354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.753354][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.753354][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.753354][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.753354][ T254] [ 2619.755521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.755521][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2619.755521][ T254] ipv6_find_idev+0x102/0x170 [ 2619.755521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2619.755521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2619.755521][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.755521][ T254] netlink_unicast+0x449/0x710 [ 2619.755521][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.755521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.755521][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.755521][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.755521][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.755521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2619.755521][ T254] [ 2619.757209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2619.757209][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2619.757209][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2619.757209][ T254] ipv6_find_idev+0x102/0x170 [ 2619.757209][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2619.757209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2619.757209][ T254] netlink_rcv_skb+0x130/0x360 [ 2619.757209][ T254] netlink_unicast+0x449/0x710 [ 2619.757209][ T254] netlink_sendmsg+0x723/0xbe0 [ 2619.757209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2619.757209][ T254] ___sys_sendmsg+0xee/0x170 [ 2619.757209][ T254] __sys_sendmsg+0xcd/0x170 [ 2619.757209][ T254] do_syscall_64+0xc6/0x1e0 [ 2619.757209][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2619.757209][ T254] [ 2629.863867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2629.864385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.864385][ T254] dst_init+0x84/0x4a0 [ 2629.864385][ T254] dst_alloc+0x97/0x150 [ 2629.864385][ T254] ip6_dst_alloc+0x23/0x90 [ 2629.864385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2629.864385][ T254] ip6_pol_route+0x56f/0x840 [ 2629.864385][ T254] fib6_rule_lookup+0x334/0x630 [ 2629.864385][ T254] ip6_route_output_flags+0x259/0x480 [ 2629.864385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2629.864385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2629.864385][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.864385][ T254] netlink_unicast+0x449/0x710 [ 2629.864385][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.864385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.864385][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.864385][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.864385][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.864385][ T254] [ 2629.866684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.866684][ T254] netdev_get_by_index+0x5e/0x80 [ 2629.866684][ T254] fib6_nh_init+0x3d8/0x1580 [ 2629.866684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2629.866684][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2629.866684][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2629.866684][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2629.866684][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2629.866684][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2629.866684][ T254] addrconf_dad_begin+0x310/0x670 [ 2629.866684][ T254] addrconf_dad_work+0x10b/0xab0 [ 2629.866684][ T254] process_one_work+0x84d/0x18a0 [ 2629.866684][ T254] worker_thread+0x587/0xd30 [ 2629.866684][ T254] kthread+0x28a/0x350 [ 2629.866684][ T254] ret_from_fork+0x31/0x70 [ 2629.866684][ T254] ret_from_fork_asm+0x1a/0x30 [ 2629.866684][ T254] [ 2629.868816][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.868816][ T254] netdev_get_by_index+0x5e/0x80 [ 2629.868816][ T254] fib6_nh_init+0x3d8/0x1580 [ 2629.868816][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2629.868816][ T254] ip6_route_add+0x1c/0x140 [ 2629.868816][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2629.868816][ T254] inet6_addr_add+0x4f8/0xa40 [ 2629.868816][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2629.868816][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2629.868816][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.868816][ T254] netlink_unicast+0x449/0x710 [ 2629.868816][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.868816][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.868816][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.868816][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.868816][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.868816][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2629.868816][ T254] [ 2629.871578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.871578][ T254] netdev_get_by_index+0x5e/0x80 [ 2629.871578][ T254] fib6_nh_init+0x3d8/0x1580 [ 2629.871578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2629.871578][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2629.871578][ T254] ipv6_add_addr+0x411/0x2000 [ 2629.871578][ T254] inet6_addr_add+0x30e/0xa40 [ 2629.871578][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2629.871578][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2629.871578][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.871578][ T254] netlink_unicast+0x449/0x710 [ 2629.871578][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.871578][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.871578][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.871578][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.871578][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.871578][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2629.871578][ T254] [ 2629.873804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.873804][ T254] netdev_get_by_index+0x5e/0x80 [ 2629.873804][ T254] fib6_nh_init+0x3d8/0x1580 [ 2629.873804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2629.873804][ T254] ip6_route_add+0x1c/0x140 [ 2629.873804][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2629.873804][ T254] addrconf_add_dev+0xe2/0x170 [ 2629.873804][ T254] inet6_addr_add+0x12f/0xa40 [ 2629.873804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2629.873804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2629.873804][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.873804][ T254] netlink_unicast+0x449/0x710 [ 2629.873804][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.873804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.873804][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.873804][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.873804][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.873804][ T254] [ 2629.875990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.875990][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2629.875990][ T254] ipv6_find_idev+0x102/0x170 [ 2629.875990][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2629.875990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2629.875990][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.875990][ T254] netlink_unicast+0x449/0x710 [ 2629.875990][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.875990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.875990][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.875990][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.875990][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.875990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2629.875990][ T254] [ 2629.878099][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2629.878099][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2629.878099][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2629.878099][ T254] ipv6_find_idev+0x102/0x170 [ 2629.878099][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2629.878099][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2629.878099][ T254] netlink_rcv_skb+0x130/0x360 [ 2629.878099][ T254] netlink_unicast+0x449/0x710 [ 2629.878099][ T254] netlink_sendmsg+0x723/0xbe0 [ 2629.878099][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2629.878099][ T254] ___sys_sendmsg+0xee/0x170 [ 2629.878099][ T254] __sys_sendmsg+0xcd/0x170 [ 2629.878099][ T254] do_syscall_64+0xc6/0x1e0 [ 2629.878099][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2629.878099][ T254] [ 2640.119941][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2640.120522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.120522][ T254] dst_init+0x84/0x4a0 [ 2640.120522][ T254] dst_alloc+0x97/0x150 [ 2640.120522][ T254] ip6_dst_alloc+0x23/0x90 [ 2640.120522][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2640.120522][ T254] ip6_pol_route+0x56f/0x840 [ 2640.120522][ T254] fib6_rule_lookup+0x334/0x630 [ 2640.120522][ T254] ip6_route_output_flags+0x259/0x480 [ 2640.120522][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2640.120522][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2640.120522][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.120522][ T254] netlink_unicast+0x449/0x710 [ 2640.120522][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.120522][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.120522][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.120522][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.120522][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.120522][ T254] [ 2640.122727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.122727][ T254] netdev_get_by_index+0x5e/0x80 [ 2640.122727][ T254] fib6_nh_init+0x3d8/0x1580 [ 2640.122727][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2640.122727][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2640.122727][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2640.122727][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2640.122727][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2640.122727][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2640.122727][ T254] addrconf_dad_begin+0x310/0x670 [ 2640.122727][ T254] addrconf_dad_work+0x10b/0xab0 [ 2640.122727][ T254] process_one_work+0x84d/0x18a0 [ 2640.122727][ T254] worker_thread+0x587/0xd30 [ 2640.122727][ T254] kthread+0x28a/0x350 [ 2640.122727][ T254] ret_from_fork+0x31/0x70 [ 2640.122727][ T254] ret_from_fork_asm+0x1a/0x30 [ 2640.122727][ T254] [ 2640.124879][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.124879][ T254] netdev_get_by_index+0x5e/0x80 [ 2640.124879][ T254] fib6_nh_init+0x3d8/0x1580 [ 2640.124879][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2640.124879][ T254] ip6_route_add+0x1c/0x140 [ 2640.124879][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2640.124879][ T254] inet6_addr_add+0x4f8/0xa40 [ 2640.124879][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2640.124879][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2640.124879][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.124879][ T254] netlink_unicast+0x449/0x710 [ 2640.124879][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.124879][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.124879][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.124879][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.124879][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.124879][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2640.124879][ T254] [ 2640.127120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.127120][ T254] netdev_get_by_index+0x5e/0x80 [ 2640.127120][ T254] fib6_nh_init+0x3d8/0x1580 [ 2640.127120][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2640.127120][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2640.127120][ T254] ipv6_add_addr+0x411/0x2000 [ 2640.127120][ T254] inet6_addr_add+0x30e/0xa40 [ 2640.127120][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2640.127120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2640.127120][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.127120][ T254] netlink_unicast+0x449/0x710 [ 2640.127120][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.127120][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.127120][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.127120][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.127120][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.127120][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2640.127120][ T254] [ 2640.129374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.129374][ T254] netdev_get_by_index+0x5e/0x80 [ 2640.129374][ T254] fib6_nh_init+0x3d8/0x1580 [ 2640.129374][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2640.129374][ T254] ip6_route_add+0x1c/0x140 [ 2640.129374][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2640.129374][ T254] addrconf_add_dev+0xe2/0x170 [ 2640.129374][ T254] inet6_addr_add+0x12f/0xa40 [ 2640.129374][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2640.129374][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2640.129374][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.129374][ T254] netlink_unicast+0x449/0x710 [ 2640.129374][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.129374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.129374][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.129374][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.129374][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.129374][ T254] [ 2640.131519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.131519][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2640.131519][ T254] ipv6_find_idev+0x102/0x170 [ 2640.131519][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2640.131519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2640.131519][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.131519][ T254] netlink_unicast+0x449/0x710 [ 2640.131519][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.131519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.131519][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.131519][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.131519][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.131519][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2640.131519][ T254] [ 2640.133205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2640.133205][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2640.133205][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2640.133205][ T254] ipv6_find_idev+0x102/0x170 [ 2640.133205][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2640.133205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2640.133205][ T254] netlink_rcv_skb+0x130/0x360 [ 2640.133205][ T254] netlink_unicast+0x449/0x710 [ 2640.133205][ T254] netlink_sendmsg+0x723/0xbe0 [ 2640.133205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2640.133205][ T254] ___sys_sendmsg+0xee/0x170 [ 2640.133205][ T254] __sys_sendmsg+0xcd/0x170 [ 2640.133205][ T254] do_syscall_64+0xc6/0x1e0 [ 2640.133205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2640.133205][ T254] [ 2650.215924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2650.216572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.216572][ T254] dst_init+0x84/0x4a0 [ 2650.216572][ T254] dst_alloc+0x97/0x150 [ 2650.216572][ T254] ip6_dst_alloc+0x23/0x90 [ 2650.216572][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2650.216572][ T254] ip6_pol_route+0x56f/0x840 [ 2650.216572][ T254] fib6_rule_lookup+0x334/0x630 [ 2650.216572][ T254] ip6_route_output_flags+0x259/0x480 [ 2650.216572][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2650.216572][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2650.216572][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.216572][ T254] netlink_unicast+0x449/0x710 [ 2650.216572][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.216572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.216572][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.216572][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.216572][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.216572][ T254] [ 2650.218760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.218760][ T254] netdev_get_by_index+0x5e/0x80 [ 2650.218760][ T254] fib6_nh_init+0x3d8/0x1580 [ 2650.218760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2650.218760][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2650.218760][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2650.218760][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2650.218760][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2650.218760][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2650.218760][ T254] addrconf_dad_begin+0x310/0x670 [ 2650.218760][ T254] addrconf_dad_work+0x10b/0xab0 [ 2650.218760][ T254] process_one_work+0x84d/0x18a0 [ 2650.218760][ T254] worker_thread+0x587/0xd30 [ 2650.218760][ T254] kthread+0x28a/0x350 [ 2650.218760][ T254] ret_from_fork+0x31/0x70 [ 2650.218760][ T254] ret_from_fork_asm+0x1a/0x30 [ 2650.218760][ T254] [ 2650.220894][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.220894][ T254] netdev_get_by_index+0x5e/0x80 [ 2650.220894][ T254] fib6_nh_init+0x3d8/0x1580 [ 2650.220894][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2650.220894][ T254] ip6_route_add+0x1c/0x140 [ 2650.220894][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2650.220894][ T254] inet6_addr_add+0x4f8/0xa40 [ 2650.220894][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2650.220894][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2650.220894][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.220894][ T254] netlink_unicast+0x449/0x710 [ 2650.220894][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.220894][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.220894][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.220894][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.220894][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.220894][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2650.220894][ T254] [ 2650.223120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.223120][ T254] netdev_get_by_index+0x5e/0x80 [ 2650.223120][ T254] fib6_nh_init+0x3d8/0x1580 [ 2650.223120][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2650.223120][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2650.223120][ T254] ipv6_add_addr+0x411/0x2000 [ 2650.223120][ T254] inet6_addr_add+0x30e/0xa40 [ 2650.223120][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2650.223120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2650.223120][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.223120][ T254] netlink_unicast+0x449/0x710 [ 2650.223120][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.223120][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.223120][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.223120][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.223120][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.223120][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2650.223120][ T254] [ 2650.225307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.225307][ T254] netdev_get_by_index+0x5e/0x80 [ 2650.225307][ T254] fib6_nh_init+0x3d8/0x1580 [ 2650.225307][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2650.225307][ T254] ip6_route_add+0x1c/0x140 [ 2650.225307][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2650.225307][ T254] addrconf_add_dev+0xe2/0x170 [ 2650.225307][ T254] inet6_addr_add+0x12f/0xa40 [ 2650.225307][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2650.225307][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2650.225307][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.225307][ T254] netlink_unicast+0x449/0x710 [ 2650.225307][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.225307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.225307][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.225307][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.225307][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.225307][ T254] [ 2650.227557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.227557][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2650.227557][ T254] ipv6_find_idev+0x102/0x170 [ 2650.227557][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2650.227557][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2650.227557][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.227557][ T254] netlink_unicast+0x449/0x710 [ 2650.227557][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.227557][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.227557][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.227557][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.227557][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.227557][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2650.227557][ T254] [ 2650.229301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2650.229301][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2650.229301][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2650.229301][ T254] ipv6_find_idev+0x102/0x170 [ 2650.229301][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2650.229301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2650.229301][ T254] netlink_rcv_skb+0x130/0x360 [ 2650.229301][ T254] netlink_unicast+0x449/0x710 [ 2650.229301][ T254] netlink_sendmsg+0x723/0xbe0 [ 2650.229301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2650.229301][ T254] ___sys_sendmsg+0xee/0x170 [ 2650.229301][ T254] __sys_sendmsg+0xcd/0x170 [ 2650.229301][ T254] do_syscall_64+0xc6/0x1e0 [ 2650.229301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2650.229301][ T254] [ 2660.263924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2660.264500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.264500][ T254] dst_init+0x84/0x4a0 [ 2660.264500][ T254] dst_alloc+0x97/0x150 [ 2660.264500][ T254] ip6_dst_alloc+0x23/0x90 [ 2660.264500][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2660.264500][ T254] ip6_pol_route+0x56f/0x840 [ 2660.264500][ T254] fib6_rule_lookup+0x334/0x630 [ 2660.264500][ T254] ip6_route_output_flags+0x259/0x480 [ 2660.264500][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2660.264500][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2660.264500][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.264500][ T254] netlink_unicast+0x449/0x710 [ 2660.264500][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.264500][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.264500][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.264500][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.264500][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.264500][ T254] [ 2660.266667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.266667][ T254] netdev_get_by_index+0x5e/0x80 [ 2660.266667][ T254] fib6_nh_init+0x3d8/0x1580 [ 2660.266667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2660.266667][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2660.266667][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2660.266667][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2660.266667][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2660.266667][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2660.266667][ T254] addrconf_dad_begin+0x310/0x670 [ 2660.266667][ T254] addrconf_dad_work+0x10b/0xab0 [ 2660.266667][ T254] process_one_work+0x84d/0x18a0 [ 2660.266667][ T254] worker_thread+0x587/0xd30 [ 2660.266667][ T254] kthread+0x28a/0x350 [ 2660.266667][ T254] ret_from_fork+0x31/0x70 [ 2660.266667][ T254] ret_from_fork_asm+0x1a/0x30 [ 2660.266667][ T254] [ 2660.268790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.268790][ T254] netdev_get_by_index+0x5e/0x80 [ 2660.268790][ T254] fib6_nh_init+0x3d8/0x1580 [ 2660.268790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2660.268790][ T254] ip6_route_add+0x1c/0x140 [ 2660.268790][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2660.268790][ T254] inet6_addr_add+0x4f8/0xa40 [ 2660.268790][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2660.268790][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2660.268790][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.268790][ T254] netlink_unicast+0x449/0x710 [ 2660.268790][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.268790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.268790][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.268790][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.268790][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.268790][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2660.268790][ T254] [ 2660.271018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.271018][ T254] netdev_get_by_index+0x5e/0x80 [ 2660.271018][ T254] fib6_nh_init+0x3d8/0x1580 [ 2660.271018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2660.271018][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2660.271018][ T254] ipv6_add_addr+0x411/0x2000 [ 2660.271018][ T254] inet6_addr_add+0x30e/0xa40 [ 2660.271018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2660.271018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2660.271018][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.271018][ T254] netlink_unicast+0x449/0x710 [ 2660.271018][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.271018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.271018][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.271018][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.271018][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.271018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2660.271018][ T254] [ 2660.273202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.273202][ T254] netdev_get_by_index+0x5e/0x80 [ 2660.273202][ T254] fib6_nh_init+0x3d8/0x1580 [ 2660.273202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2660.273202][ T254] ip6_route_add+0x1c/0x140 [ 2660.273202][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2660.273202][ T254] addrconf_add_dev+0xe2/0x170 [ 2660.273202][ T254] inet6_addr_add+0x12f/0xa40 [ 2660.273202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2660.273202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2660.273202][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.273202][ T254] netlink_unicast+0x449/0x710 [ 2660.273202][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.273202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.273202][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.273202][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.273202][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.273202][ T254] [ 2660.275350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.275350][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2660.275350][ T254] ipv6_find_idev+0x102/0x170 [ 2660.275350][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2660.275350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2660.275350][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.275350][ T254] netlink_unicast+0x449/0x710 [ 2660.275350][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.275350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.275350][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.275350][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.275350][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.275350][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2660.275350][ T254] [ 2660.277031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2660.277031][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2660.277031][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2660.277031][ T254] ipv6_find_idev+0x102/0x170 [ 2660.277031][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2660.277031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2660.277031][ T254] netlink_rcv_skb+0x130/0x360 [ 2660.277031][ T254] netlink_unicast+0x449/0x710 [ 2660.277031][ T254] netlink_sendmsg+0x723/0xbe0 [ 2660.277031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2660.277031][ T254] ___sys_sendmsg+0xee/0x170 [ 2660.277031][ T254] __sys_sendmsg+0xcd/0x170 [ 2660.277031][ T254] do_syscall_64+0xc6/0x1e0 [ 2660.277031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2660.277031][ T254] [ 2670.527923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2670.528482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.528482][ T254] dst_init+0x84/0x4a0 [ 2670.528482][ T254] dst_alloc+0x97/0x150 [ 2670.528482][ T254] ip6_dst_alloc+0x23/0x90 [ 2670.528482][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2670.528482][ T254] ip6_pol_route+0x56f/0x840 [ 2670.528482][ T254] fib6_rule_lookup+0x334/0x630 [ 2670.528482][ T254] ip6_route_output_flags+0x259/0x480 [ 2670.528482][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2670.528482][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2670.528482][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.528482][ T254] netlink_unicast+0x449/0x710 [ 2670.528482][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.528482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.528482][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.528482][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.528482][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.528482][ T254] [ 2670.530630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.530630][ T254] netdev_get_by_index+0x5e/0x80 [ 2670.530630][ T254] fib6_nh_init+0x3d8/0x1580 [ 2670.530630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2670.530630][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2670.530630][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2670.530630][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2670.530630][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2670.530630][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2670.530630][ T254] addrconf_dad_begin+0x310/0x670 [ 2670.530630][ T254] addrconf_dad_work+0x10b/0xab0 [ 2670.530630][ T254] process_one_work+0x84d/0x18a0 [ 2670.530630][ T254] worker_thread+0x587/0xd30 [ 2670.530630][ T254] kthread+0x28a/0x350 [ 2670.530630][ T254] ret_from_fork+0x31/0x70 [ 2670.530630][ T254] ret_from_fork_asm+0x1a/0x30 [ 2670.530630][ T254] [ 2670.532732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.532732][ T254] netdev_get_by_index+0x5e/0x80 [ 2670.532732][ T254] fib6_nh_init+0x3d8/0x1580 [ 2670.532732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2670.532732][ T254] ip6_route_add+0x1c/0x140 [ 2670.532732][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2670.532732][ T254] inet6_addr_add+0x4f8/0xa40 [ 2670.532732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2670.532732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2670.532732][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.532732][ T254] netlink_unicast+0x449/0x710 [ 2670.532732][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.532732][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.532732][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.532732][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.532732][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.532732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2670.532732][ T254] [ 2670.534984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.534984][ T254] netdev_get_by_index+0x5e/0x80 [ 2670.534984][ T254] fib6_nh_init+0x3d8/0x1580 [ 2670.534984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2670.534984][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2670.534984][ T254] ipv6_add_addr+0x411/0x2000 [ 2670.534984][ T254] inet6_addr_add+0x30e/0xa40 [ 2670.534984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2670.534984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2670.534984][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.534984][ T254] netlink_unicast+0x449/0x710 [ 2670.534984][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.534984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.534984][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.534984][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.534984][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.534984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2670.534984][ T254] [ 2670.537223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.537223][ T254] netdev_get_by_index+0x5e/0x80 [ 2670.537223][ T254] fib6_nh_init+0x3d8/0x1580 [ 2670.537223][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2670.537223][ T254] ip6_route_add+0x1c/0x140 [ 2670.537223][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2670.537223][ T254] addrconf_add_dev+0xe2/0x170 [ 2670.537223][ T254] inet6_addr_add+0x12f/0xa40 [ 2670.537223][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2670.537223][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2670.537223][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.537223][ T254] netlink_unicast+0x449/0x710 [ 2670.537223][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.537223][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.537223][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.537223][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.537223][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.537223][ T254] [ 2670.539366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.539366][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2670.539366][ T254] ipv6_find_idev+0x102/0x170 [ 2670.539366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2670.539366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2670.539366][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.539366][ T254] netlink_unicast+0x449/0x710 [ 2670.539366][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.539366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.539366][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.539366][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.539366][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.539366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2670.539366][ T254] [ 2670.541045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2670.541045][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2670.541045][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2670.541045][ T254] ipv6_find_idev+0x102/0x170 [ 2670.541045][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2670.541045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2670.541045][ T254] netlink_rcv_skb+0x130/0x360 [ 2670.541045][ T254] netlink_unicast+0x449/0x710 [ 2670.541045][ T254] netlink_sendmsg+0x723/0xbe0 [ 2670.541045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2670.541045][ T254] ___sys_sendmsg+0xee/0x170 [ 2670.541045][ T254] __sys_sendmsg+0xcd/0x170 [ 2670.541045][ T254] do_syscall_64+0xc6/0x1e0 [ 2670.541045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2670.541045][ T254] [ 2680.599852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2680.600408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.600408][ T254] dst_init+0x84/0x4a0 [ 2680.600408][ T254] dst_alloc+0x97/0x150 [ 2680.600408][ T254] ip6_dst_alloc+0x23/0x90 [ 2680.600408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2680.600408][ T254] ip6_pol_route+0x56f/0x840 [ 2680.600408][ T254] fib6_rule_lookup+0x334/0x630 [ 2680.600408][ T254] ip6_route_output_flags+0x259/0x480 [ 2680.600408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2680.600408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2680.600408][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.600408][ T254] netlink_unicast+0x449/0x710 [ 2680.600408][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.600408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.600408][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.600408][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.600408][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.600408][ T254] [ 2680.602557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.602557][ T254] netdev_get_by_index+0x5e/0x80 [ 2680.602557][ T254] fib6_nh_init+0x3d8/0x1580 [ 2680.602557][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2680.602557][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2680.602557][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2680.602557][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2680.602557][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2680.602557][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2680.602557][ T254] addrconf_dad_begin+0x310/0x670 [ 2680.602557][ T254] addrconf_dad_work+0x10b/0xab0 [ 2680.602557][ T254] process_one_work+0x84d/0x18a0 [ 2680.602557][ T254] worker_thread+0x587/0xd30 [ 2680.602557][ T254] kthread+0x28a/0x350 [ 2680.602557][ T254] ret_from_fork+0x31/0x70 [ 2680.602557][ T254] ret_from_fork_asm+0x1a/0x30 [ 2680.602557][ T254] [ 2680.604718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.604718][ T254] netdev_get_by_index+0x5e/0x80 [ 2680.604718][ T254] fib6_nh_init+0x3d8/0x1580 [ 2680.604718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2680.604718][ T254] ip6_route_add+0x1c/0x140 [ 2680.604718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2680.604718][ T254] inet6_addr_add+0x4f8/0xa40 [ 2680.604718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2680.604718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2680.604718][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.604718][ T254] netlink_unicast+0x449/0x710 [ 2680.604718][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.604718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.604718][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.604718][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.604718][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.604718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2680.604718][ T254] [ 2680.606929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.606929][ T254] netdev_get_by_index+0x5e/0x80 [ 2680.606929][ T254] fib6_nh_init+0x3d8/0x1580 [ 2680.606929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2680.606929][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2680.606929][ T254] ipv6_add_addr+0x411/0x2000 [ 2680.606929][ T254] inet6_addr_add+0x30e/0xa40 [ 2680.606929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2680.606929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2680.606929][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.606929][ T254] netlink_unicast+0x449/0x710 [ 2680.606929][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.606929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.606929][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.606929][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.606929][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.606929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2680.606929][ T254] [ 2680.609112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.609112][ T254] netdev_get_by_index+0x5e/0x80 [ 2680.609112][ T254] fib6_nh_init+0x3d8/0x1580 [ 2680.609112][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2680.609112][ T254] ip6_route_add+0x1c/0x140 [ 2680.609112][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2680.609112][ T254] addrconf_add_dev+0xe2/0x170 [ 2680.609112][ T254] inet6_addr_add+0x12f/0xa40 [ 2680.609112][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2680.609112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2680.609112][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.609112][ T254] netlink_unicast+0x449/0x710 [ 2680.609112][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.609112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.609112][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.609112][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.609112][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.609112][ T254] [ 2680.611325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.611325][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2680.611325][ T254] ipv6_find_idev+0x102/0x170 [ 2680.611325][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2680.611325][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2680.611325][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.611325][ T254] netlink_unicast+0x449/0x710 [ 2680.611325][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.611325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.611325][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.611325][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.611325][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.611325][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2680.611325][ T254] [ 2680.612999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2680.612999][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2680.612999][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2680.612999][ T254] ipv6_find_idev+0x102/0x170 [ 2680.612999][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2680.612999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2680.612999][ T254] netlink_rcv_skb+0x130/0x360 [ 2680.612999][ T254] netlink_unicast+0x449/0x710 [ 2680.612999][ T254] netlink_sendmsg+0x723/0xbe0 [ 2680.612999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2680.612999][ T254] ___sys_sendmsg+0xee/0x170 [ 2680.612999][ T254] __sys_sendmsg+0xcd/0x170 [ 2680.612999][ T254] do_syscall_64+0xc6/0x1e0 [ 2680.612999][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2680.612999][ T254] [ 2690.727928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2690.728573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.728573][ T254] dst_init+0x84/0x4a0 [ 2690.728573][ T254] dst_alloc+0x97/0x150 [ 2690.728573][ T254] ip6_dst_alloc+0x23/0x90 [ 2690.728573][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2690.728573][ T254] ip6_pol_route+0x56f/0x840 [ 2690.728573][ T254] fib6_rule_lookup+0x334/0x630 [ 2690.728573][ T254] ip6_route_output_flags+0x259/0x480 [ 2690.728573][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2690.728573][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2690.728573][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.728573][ T254] netlink_unicast+0x449/0x710 [ 2690.728573][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.728573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.728573][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.728573][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.728573][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.728573][ T254] [ 2690.730825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.730825][ T254] netdev_get_by_index+0x5e/0x80 [ 2690.730825][ T254] fib6_nh_init+0x3d8/0x1580 [ 2690.730825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2690.730825][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2690.730825][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2690.730825][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2690.730825][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2690.730825][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2690.730825][ T254] addrconf_dad_begin+0x310/0x670 [ 2690.730825][ T254] addrconf_dad_work+0x10b/0xab0 [ 2690.730825][ T254] process_one_work+0x84d/0x18a0 [ 2690.730825][ T254] worker_thread+0x587/0xd30 [ 2690.730825][ T254] kthread+0x28a/0x350 [ 2690.730825][ T254] ret_from_fork+0x31/0x70 [ 2690.730825][ T254] ret_from_fork_asm+0x1a/0x30 [ 2690.730825][ T254] [ 2690.732988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.732988][ T254] netdev_get_by_index+0x5e/0x80 [ 2690.732988][ T254] fib6_nh_init+0x3d8/0x1580 [ 2690.732988][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2690.732988][ T254] ip6_route_add+0x1c/0x140 [ 2690.732988][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2690.732988][ T254] inet6_addr_add+0x4f8/0xa40 [ 2690.732988][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2690.732988][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2690.732988][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.732988][ T254] netlink_unicast+0x449/0x710 [ 2690.732988][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.732988][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.732988][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.732988][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.732988][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.732988][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2690.732988][ T254] [ 2690.735242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.735242][ T254] netdev_get_by_index+0x5e/0x80 [ 2690.735242][ T254] fib6_nh_init+0x3d8/0x1580 [ 2690.735242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2690.735242][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2690.735242][ T254] ipv6_add_addr+0x411/0x2000 [ 2690.735242][ T254] inet6_addr_add+0x30e/0xa40 [ 2690.735242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2690.735242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2690.735242][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.735242][ T254] netlink_unicast+0x449/0x710 [ 2690.735242][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.735242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.735242][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.735242][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.735242][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.735242][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2690.735242][ T254] [ 2690.737508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.737508][ T254] netdev_get_by_index+0x5e/0x80 [ 2690.737508][ T254] fib6_nh_init+0x3d8/0x1580 [ 2690.737508][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2690.737508][ T254] ip6_route_add+0x1c/0x140 [ 2690.737508][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2690.737508][ T254] addrconf_add_dev+0xe2/0x170 [ 2690.737508][ T254] inet6_addr_add+0x12f/0xa40 [ 2690.737508][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2690.737508][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2690.737508][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.737508][ T254] netlink_unicast+0x449/0x710 [ 2690.737508][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.737508][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.737508][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.737508][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.737508][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.737508][ T254] [ 2690.739671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.739671][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2690.739671][ T254] ipv6_find_idev+0x102/0x170 [ 2690.739671][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2690.739671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2690.739671][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.739671][ T254] netlink_unicast+0x449/0x710 [ 2690.739671][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.739671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.739671][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.739671][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.739671][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.739671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2690.739671][ T254] [ 2690.741414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2690.741414][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2690.741414][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2690.741414][ T254] ipv6_find_idev+0x102/0x170 [ 2690.741414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2690.741414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2690.741414][ T254] netlink_rcv_skb+0x130/0x360 [ 2690.741414][ T254] netlink_unicast+0x449/0x710 [ 2690.741414][ T254] netlink_sendmsg+0x723/0xbe0 [ 2690.741414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2690.741414][ T254] ___sys_sendmsg+0xee/0x170 [ 2690.741414][ T254] __sys_sendmsg+0xcd/0x170 [ 2690.741414][ T254] do_syscall_64+0xc6/0x1e0 [ 2690.741414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2690.741414][ T254] [ 2700.983913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2700.984480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.984480][ T254] dst_init+0x84/0x4a0 [ 2700.984480][ T254] dst_alloc+0x97/0x150 [ 2700.984480][ T254] ip6_dst_alloc+0x23/0x90 [ 2700.984480][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2700.984480][ T254] ip6_pol_route+0x56f/0x840 [ 2700.984480][ T254] fib6_rule_lookup+0x334/0x630 [ 2700.984480][ T254] ip6_route_output_flags+0x259/0x480 [ 2700.984480][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2700.984480][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2700.984480][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.984480][ T254] netlink_unicast+0x449/0x710 [ 2700.984480][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.984480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.984480][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.984480][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.984480][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.984480][ T254] [ 2700.986634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.986634][ T254] netdev_get_by_index+0x5e/0x80 [ 2700.986634][ T254] fib6_nh_init+0x3d8/0x1580 [ 2700.986634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2700.986634][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2700.986634][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2700.986634][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2700.986634][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2700.986634][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2700.986634][ T254] addrconf_dad_begin+0x310/0x670 [ 2700.986634][ T254] addrconf_dad_work+0x10b/0xab0 [ 2700.986634][ T254] process_one_work+0x84d/0x18a0 [ 2700.986634][ T254] worker_thread+0x587/0xd30 [ 2700.986634][ T254] kthread+0x28a/0x350 [ 2700.986634][ T254] ret_from_fork+0x31/0x70 [ 2700.986634][ T254] ret_from_fork_asm+0x1a/0x30 [ 2700.986634][ T254] [ 2700.988730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.988730][ T254] netdev_get_by_index+0x5e/0x80 [ 2700.988730][ T254] fib6_nh_init+0x3d8/0x1580 [ 2700.988730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2700.988730][ T254] ip6_route_add+0x1c/0x140 [ 2700.988730][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2700.988730][ T254] inet6_addr_add+0x4f8/0xa40 [ 2700.988730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2700.988730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2700.988730][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.988730][ T254] netlink_unicast+0x449/0x710 [ 2700.988730][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.988730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.988730][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.988730][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.988730][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.988730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2700.988730][ T254] [ 2700.990946][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.990946][ T254] netdev_get_by_index+0x5e/0x80 [ 2700.990946][ T254] fib6_nh_init+0x3d8/0x1580 [ 2700.990946][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2700.990946][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2700.990946][ T254] ipv6_add_addr+0x411/0x2000 [ 2700.990946][ T254] inet6_addr_add+0x30e/0xa40 [ 2700.990946][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2700.990946][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2700.990946][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.990946][ T254] netlink_unicast+0x449/0x710 [ 2700.990946][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.990946][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.990946][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.990946][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.990946][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.990946][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2700.990946][ T254] [ 2700.993139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.993139][ T254] netdev_get_by_index+0x5e/0x80 [ 2700.993139][ T254] fib6_nh_init+0x3d8/0x1580 [ 2700.993139][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2700.993139][ T254] ip6_route_add+0x1c/0x140 [ 2700.993139][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2700.993139][ T254] addrconf_add_dev+0xe2/0x170 [ 2700.993139][ T254] inet6_addr_add+0x12f/0xa40 [ 2700.993139][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2700.993139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2700.993139][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.993139][ T254] netlink_unicast+0x449/0x710 [ 2700.993139][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.993139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.993139][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.993139][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.993139][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.993139][ T254] [ 2700.995293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.995293][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2700.995293][ T254] ipv6_find_idev+0x102/0x170 [ 2700.995293][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2700.995293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2700.995293][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.995293][ T254] netlink_unicast+0x449/0x710 [ 2700.995293][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.995293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.995293][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.995293][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.995293][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.995293][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2700.995293][ T254] [ 2700.996972][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2700.996972][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2700.996972][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2700.996972][ T254] ipv6_find_idev+0x102/0x170 [ 2700.996972][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2700.996972][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2700.996972][ T254] netlink_rcv_skb+0x130/0x360 [ 2700.996972][ T254] netlink_unicast+0x449/0x710 [ 2700.996972][ T254] netlink_sendmsg+0x723/0xbe0 [ 2700.996972][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2700.996972][ T254] ___sys_sendmsg+0xee/0x170 [ 2700.996972][ T254] __sys_sendmsg+0xcd/0x170 [ 2700.996972][ T254] do_syscall_64+0xc6/0x1e0 [ 2700.996972][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2700.996972][ T254] [ 2711.239910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2711.240711][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.240711][ T254] dst_init+0x84/0x4a0 [ 2711.240711][ T254] dst_alloc+0x97/0x150 [ 2711.240711][ T254] ip6_dst_alloc+0x23/0x90 [ 2711.240711][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2711.240711][ T254] ip6_pol_route+0x56f/0x840 [ 2711.240711][ T254] fib6_rule_lookup+0x334/0x630 [ 2711.240711][ T254] ip6_route_output_flags+0x259/0x480 [ 2711.240711][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2711.240711][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2711.240711][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.240711][ T254] netlink_unicast+0x449/0x710 [ 2711.240711][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.240711][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.240711][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.240711][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.240711][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.240711][ T254] [ 2711.242861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.242861][ T254] netdev_get_by_index+0x5e/0x80 [ 2711.242861][ T254] fib6_nh_init+0x3d8/0x1580 [ 2711.242861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2711.242861][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2711.242861][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2711.242861][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2711.242861][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2711.242861][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2711.242861][ T254] addrconf_dad_begin+0x310/0x670 [ 2711.242861][ T254] addrconf_dad_work+0x10b/0xab0 [ 2711.242861][ T254] process_one_work+0x84d/0x18a0 [ 2711.242861][ T254] worker_thread+0x587/0xd30 [ 2711.242861][ T254] kthread+0x28a/0x350 [ 2711.242861][ T254] ret_from_fork+0x31/0x70 [ 2711.242861][ T254] ret_from_fork_asm+0x1a/0x30 [ 2711.242861][ T254] [ 2711.245054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.245054][ T254] netdev_get_by_index+0x5e/0x80 [ 2711.245054][ T254] fib6_nh_init+0x3d8/0x1580 [ 2711.245054][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2711.245054][ T254] ip6_route_add+0x1c/0x140 [ 2711.245054][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2711.245054][ T254] inet6_addr_add+0x4f8/0xa40 [ 2711.245054][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2711.245054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2711.245054][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.245054][ T254] netlink_unicast+0x449/0x710 [ 2711.245054][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.245054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.245054][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.245054][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.245054][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.245054][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2711.245054][ T254] [ 2711.247193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.247193][ T254] netdev_get_by_index+0x5e/0x80 [ 2711.247193][ T254] fib6_nh_init+0x3d8/0x1580 [ 2711.247193][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2711.247193][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2711.247193][ T254] ipv6_add_addr+0x411/0x2000 [ 2711.247193][ T254] inet6_addr_add+0x30e/0xa40 [ 2711.247193][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2711.247193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2711.247193][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.247193][ T254] netlink_unicast+0x449/0x710 [ 2711.247193][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.247193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.247193][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.247193][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.247193][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.247193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2711.247193][ T254] [ 2711.249475][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.249475][ T254] netdev_get_by_index+0x5e/0x80 [ 2711.249475][ T254] fib6_nh_init+0x3d8/0x1580 [ 2711.249475][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2711.249475][ T254] ip6_route_add+0x1c/0x140 [ 2711.249475][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2711.249475][ T254] addrconf_add_dev+0xe2/0x170 [ 2711.249475][ T254] inet6_addr_add+0x12f/0xa40 [ 2711.249475][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2711.249475][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2711.249475][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.249475][ T254] netlink_unicast+0x449/0x710 [ 2711.249475][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.249475][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.249475][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.249475][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.249475][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.249475][ T254] [ 2711.251645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.251645][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2711.251645][ T254] ipv6_find_idev+0x102/0x170 [ 2711.251645][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2711.251645][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2711.251645][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.251645][ T254] netlink_unicast+0x449/0x710 [ 2711.251645][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.251645][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.251645][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.251645][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.251645][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.251645][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2711.251645][ T254] [ 2711.253372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2711.253372][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2711.253372][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2711.253372][ T254] ipv6_find_idev+0x102/0x170 [ 2711.253372][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2711.253372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2711.253372][ T254] netlink_rcv_skb+0x130/0x360 [ 2711.253372][ T254] netlink_unicast+0x449/0x710 [ 2711.253372][ T254] netlink_sendmsg+0x723/0xbe0 [ 2711.253372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2711.253372][ T254] ___sys_sendmsg+0xee/0x170 [ 2711.253372][ T254] __sys_sendmsg+0xcd/0x170 [ 2711.253372][ T254] do_syscall_64+0xc6/0x1e0 [ 2711.253372][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2711.253372][ T254] [ 2721.495911][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2721.496486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.496486][ T254] dst_init+0x84/0x4a0 [ 2721.496486][ T254] dst_alloc+0x97/0x150 [ 2721.496486][ T254] ip6_dst_alloc+0x23/0x90 [ 2721.496486][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2721.496486][ T254] ip6_pol_route+0x56f/0x840 [ 2721.496486][ T254] fib6_rule_lookup+0x334/0x630 [ 2721.496486][ T254] ip6_route_output_flags+0x259/0x480 [ 2721.496486][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2721.496486][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2721.496486][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.496486][ T254] netlink_unicast+0x449/0x710 [ 2721.496486][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.496486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.496486][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.496486][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.496486][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.496486][ T254] [ 2721.498620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.498620][ T254] netdev_get_by_index+0x5e/0x80 [ 2721.498620][ T254] fib6_nh_init+0x3d8/0x1580 [ 2721.498620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2721.498620][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2721.498620][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2721.498620][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2721.498620][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2721.498620][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2721.498620][ T254] addrconf_dad_begin+0x310/0x670 [ 2721.498620][ T254] addrconf_dad_work+0x10b/0xab0 [ 2721.498620][ T254] process_one_work+0x84d/0x18a0 [ 2721.498620][ T254] worker_thread+0x587/0xd30 [ 2721.498620][ T254] kthread+0x28a/0x350 [ 2721.498620][ T254] ret_from_fork+0x31/0x70 [ 2721.498620][ T254] ret_from_fork_asm+0x1a/0x30 [ 2721.498620][ T254] [ 2721.500687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.500687][ T254] netdev_get_by_index+0x5e/0x80 [ 2721.500687][ T254] fib6_nh_init+0x3d8/0x1580 [ 2721.500687][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2721.500687][ T254] ip6_route_add+0x1c/0x140 [ 2721.500687][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2721.500687][ T254] inet6_addr_add+0x4f8/0xa40 [ 2721.500687][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2721.500687][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2721.500687][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.500687][ T254] netlink_unicast+0x449/0x710 [ 2721.500687][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.500687][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.500687][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.500687][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.500687][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.500687][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2721.500687][ T254] [ 2721.503031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.503031][ T254] netdev_get_by_index+0x5e/0x80 [ 2721.503031][ T254] fib6_nh_init+0x3d8/0x1580 [ 2721.503031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2721.503031][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2721.503031][ T254] ipv6_add_addr+0x411/0x2000 [ 2721.503031][ T254] inet6_addr_add+0x30e/0xa40 [ 2721.503031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2721.503031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2721.503031][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.503031][ T254] netlink_unicast+0x449/0x710 [ 2721.503031][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.503031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.503031][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.503031][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.503031][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.503031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2721.503031][ T254] [ 2721.505323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.505323][ T254] netdev_get_by_index+0x5e/0x80 [ 2721.505323][ T254] fib6_nh_init+0x3d8/0x1580 [ 2721.505323][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2721.505323][ T254] ip6_route_add+0x1c/0x140 [ 2721.505323][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2721.505323][ T254] addrconf_add_dev+0xe2/0x170 [ 2721.505323][ T254] inet6_addr_add+0x12f/0xa40 [ 2721.505323][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2721.505323][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2721.505323][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.505323][ T254] netlink_unicast+0x449/0x710 [ 2721.505323][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.505323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.505323][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.505323][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.505323][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.505323][ T254] [ 2721.507529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.507529][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2721.507529][ T254] ipv6_find_idev+0x102/0x170 [ 2721.507529][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2721.507529][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2721.507529][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.507529][ T254] netlink_unicast+0x449/0x710 [ 2721.507529][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.507529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.507529][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.507529][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.507529][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.507529][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2721.507529][ T254] [ 2721.509263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2721.509263][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2721.509263][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2721.509263][ T254] ipv6_find_idev+0x102/0x170 [ 2721.509263][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2721.509263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2721.509263][ T254] netlink_rcv_skb+0x130/0x360 [ 2721.509263][ T254] netlink_unicast+0x449/0x710 [ 2721.509263][ T254] netlink_sendmsg+0x723/0xbe0 [ 2721.509263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2721.509263][ T254] ___sys_sendmsg+0xee/0x170 [ 2721.509263][ T254] __sys_sendmsg+0xcd/0x170 [ 2721.509263][ T254] do_syscall_64+0xc6/0x1e0 [ 2721.509263][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2721.509263][ T254] [ 2731.535922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2731.536616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.536616][ T254] dst_init+0x84/0x4a0 [ 2731.536616][ T254] dst_alloc+0x97/0x150 [ 2731.536616][ T254] ip6_dst_alloc+0x23/0x90 [ 2731.536616][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2731.536616][ T254] ip6_pol_route+0x56f/0x840 [ 2731.536616][ T254] fib6_rule_lookup+0x334/0x630 [ 2731.536616][ T254] ip6_route_output_flags+0x259/0x480 [ 2731.536616][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2731.536616][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2731.536616][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.536616][ T254] netlink_unicast+0x449/0x710 [ 2731.536616][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.536616][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.536616][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.536616][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.536616][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.536616][ T254] [ 2731.538857][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.538857][ T254] netdev_get_by_index+0x5e/0x80 [ 2731.538857][ T254] fib6_nh_init+0x3d8/0x1580 [ 2731.538857][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2731.538857][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2731.538857][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2731.538857][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2731.538857][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2731.538857][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2731.538857][ T254] addrconf_dad_begin+0x310/0x670 [ 2731.538857][ T254] addrconf_dad_work+0x10b/0xab0 [ 2731.538857][ T254] process_one_work+0x84d/0x18a0 [ 2731.538857][ T254] worker_thread+0x587/0xd30 [ 2731.538857][ T254] kthread+0x28a/0x350 [ 2731.538857][ T254] ret_from_fork+0x31/0x70 [ 2731.538857][ T254] ret_from_fork_asm+0x1a/0x30 [ 2731.538857][ T254] [ 2731.540974][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.540974][ T254] netdev_get_by_index+0x5e/0x80 [ 2731.540974][ T254] fib6_nh_init+0x3d8/0x1580 [ 2731.540974][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2731.540974][ T254] ip6_route_add+0x1c/0x140 [ 2731.540974][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2731.540974][ T254] inet6_addr_add+0x4f8/0xa40 [ 2731.540974][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2731.540974][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2731.540974][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.540974][ T254] netlink_unicast+0x449/0x710 [ 2731.540974][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.540974][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.540974][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.540974][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.540974][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.540974][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2731.540974][ T254] [ 2731.543189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.543189][ T254] netdev_get_by_index+0x5e/0x80 [ 2731.543189][ T254] fib6_nh_init+0x3d8/0x1580 [ 2731.543189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2731.543189][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2731.543189][ T254] ipv6_add_addr+0x411/0x2000 [ 2731.543189][ T254] inet6_addr_add+0x30e/0xa40 [ 2731.543189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2731.543189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2731.543189][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.543189][ T254] netlink_unicast+0x449/0x710 [ 2731.543189][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.543189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.543189][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.543189][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.543189][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.543189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2731.543189][ T254] [ 2731.545467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.545467][ T254] netdev_get_by_index+0x5e/0x80 [ 2731.545467][ T254] fib6_nh_init+0x3d8/0x1580 [ 2731.545467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2731.545467][ T254] ip6_route_add+0x1c/0x140 [ 2731.545467][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2731.545467][ T254] addrconf_add_dev+0xe2/0x170 [ 2731.545467][ T254] inet6_addr_add+0x12f/0xa40 [ 2731.545467][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2731.545467][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2731.545467][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.545467][ T254] netlink_unicast+0x449/0x710 [ 2731.545467][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.545467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.545467][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.545467][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.545467][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.545467][ T254] [ 2731.547710][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.547710][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2731.547710][ T254] ipv6_find_idev+0x102/0x170 [ 2731.547710][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2731.547710][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2731.547710][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.547710][ T254] netlink_unicast+0x449/0x710 [ 2731.547710][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.547710][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.547710][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.547710][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.547710][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.547710][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2731.547710][ T254] [ 2731.549448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2731.549448][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2731.549448][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2731.549448][ T254] ipv6_find_idev+0x102/0x170 [ 2731.549448][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2731.549448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2731.549448][ T254] netlink_rcv_skb+0x130/0x360 [ 2731.549448][ T254] netlink_unicast+0x449/0x710 [ 2731.549448][ T254] netlink_sendmsg+0x723/0xbe0 [ 2731.549448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2731.549448][ T254] ___sys_sendmsg+0xee/0x170 [ 2731.549448][ T254] __sys_sendmsg+0xcd/0x170 [ 2731.549448][ T254] do_syscall_64+0xc6/0x1e0 [ 2731.549448][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2731.549448][ T254] [ 2741.623850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2741.624768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.624768][ T254] dst_init+0x84/0x4a0 [ 2741.624768][ T254] dst_alloc+0x97/0x150 [ 2741.624768][ T254] ip6_dst_alloc+0x23/0x90 [ 2741.624768][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2741.624768][ T254] ip6_pol_route+0x56f/0x840 [ 2741.624768][ T254] fib6_rule_lookup+0x334/0x630 [ 2741.624768][ T254] ip6_route_output_flags+0x259/0x480 [ 2741.624768][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2741.624768][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2741.624768][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.624768][ T254] netlink_unicast+0x449/0x710 [ 2741.624768][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.624768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.624768][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.624768][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.624768][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.624768][ T254] [ 2741.628310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.628310][ T254] netdev_get_by_index+0x5e/0x80 [ 2741.628310][ T254] fib6_nh_init+0x3d8/0x1580 [ 2741.628310][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2741.628310][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2741.628310][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2741.628310][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2741.628310][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2741.628310][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2741.628310][ T254] addrconf_dad_begin+0x310/0x670 [ 2741.628310][ T254] addrconf_dad_work+0x10b/0xab0 [ 2741.628310][ T254] process_one_work+0x84d/0x18a0 [ 2741.628310][ T254] worker_thread+0x587/0xd30 [ 2741.628310][ T254] kthread+0x28a/0x350 [ 2741.628310][ T254] ret_from_fork+0x31/0x70 [ 2741.628310][ T254] ret_from_fork_asm+0x1a/0x30 [ 2741.628310][ T254] [ 2741.630575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.630575][ T254] netdev_get_by_index+0x5e/0x80 [ 2741.630575][ T254] fib6_nh_init+0x3d8/0x1580 [ 2741.630575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2741.630575][ T254] ip6_route_add+0x1c/0x140 [ 2741.630575][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2741.630575][ T254] inet6_addr_add+0x4f8/0xa40 [ 2741.630575][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2741.630575][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2741.630575][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.630575][ T254] netlink_unicast+0x449/0x710 [ 2741.630575][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.630575][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.630575][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.630575][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.630575][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.630575][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2741.630575][ T254] [ 2741.632835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.632835][ T254] netdev_get_by_index+0x5e/0x80 [ 2741.632835][ T254] fib6_nh_init+0x3d8/0x1580 [ 2741.632835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2741.632835][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2741.632835][ T254] ipv6_add_addr+0x411/0x2000 [ 2741.632835][ T254] inet6_addr_add+0x30e/0xa40 [ 2741.632835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2741.632835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2741.632835][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.632835][ T254] netlink_unicast+0x449/0x710 [ 2741.632835][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.632835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.632835][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.632835][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.632835][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.632835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2741.632835][ T254] [ 2741.635108][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.635108][ T254] netdev_get_by_index+0x5e/0x80 [ 2741.635108][ T254] fib6_nh_init+0x3d8/0x1580 [ 2741.635108][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2741.635108][ T254] ip6_route_add+0x1c/0x140 [ 2741.635108][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2741.635108][ T254] addrconf_add_dev+0xe2/0x170 [ 2741.635108][ T254] inet6_addr_add+0x12f/0xa40 [ 2741.635108][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2741.635108][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2741.635108][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.635108][ T254] netlink_unicast+0x449/0x710 [ 2741.635108][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.635108][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.635108][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.635108][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.635108][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.635108][ T254] [ 2741.637332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.637332][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2741.637332][ T254] ipv6_find_idev+0x102/0x170 [ 2741.637332][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2741.637332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2741.637332][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.637332][ T254] netlink_unicast+0x449/0x710 [ 2741.637332][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.637332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.637332][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.637332][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.637332][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.637332][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2741.637332][ T254] [ 2741.639068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2741.639068][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2741.639068][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2741.639068][ T254] ipv6_find_idev+0x102/0x170 [ 2741.639068][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2741.639068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2741.639068][ T254] netlink_rcv_skb+0x130/0x360 [ 2741.639068][ T254] netlink_unicast+0x449/0x710 [ 2741.639068][ T254] netlink_sendmsg+0x723/0xbe0 [ 2741.639068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2741.639068][ T254] ___sys_sendmsg+0xee/0x170 [ 2741.639068][ T254] __sys_sendmsg+0xcd/0x170 [ 2741.639068][ T254] do_syscall_64+0xc6/0x1e0 [ 2741.639068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2741.639068][ T254] [ 2751.759814][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2751.760289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.760289][ T254] dst_init+0x84/0x4a0 [ 2751.760289][ T254] dst_alloc+0x97/0x150 [ 2751.760289][ T254] ip6_dst_alloc+0x23/0x90 [ 2751.760289][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2751.760289][ T254] ip6_pol_route+0x56f/0x840 [ 2751.760289][ T254] fib6_rule_lookup+0x334/0x630 [ 2751.760289][ T254] ip6_route_output_flags+0x259/0x480 [ 2751.760289][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2751.760289][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2751.760289][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.760289][ T254] netlink_unicast+0x449/0x710 [ 2751.760289][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.760289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.760289][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.760289][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.760289][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.760289][ T254] [ 2751.762495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.762495][ T254] netdev_get_by_index+0x5e/0x80 [ 2751.762495][ T254] fib6_nh_init+0x3d8/0x1580 [ 2751.762495][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2751.762495][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2751.762495][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2751.762495][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2751.762495][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2751.762495][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2751.762495][ T254] addrconf_dad_begin+0x310/0x670 [ 2751.762495][ T254] addrconf_dad_work+0x10b/0xab0 [ 2751.762495][ T254] process_one_work+0x84d/0x18a0 [ 2751.762495][ T254] worker_thread+0x587/0xd30 [ 2751.762495][ T254] kthread+0x28a/0x350 [ 2751.762495][ T254] ret_from_fork+0x31/0x70 [ 2751.762495][ T254] ret_from_fork_asm+0x1a/0x30 [ 2751.762495][ T254] [ 2751.764661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.764661][ T254] netdev_get_by_index+0x5e/0x80 [ 2751.764661][ T254] fib6_nh_init+0x3d8/0x1580 [ 2751.764661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2751.764661][ T254] ip6_route_add+0x1c/0x140 [ 2751.764661][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2751.764661][ T254] inet6_addr_add+0x4f8/0xa40 [ 2751.764661][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2751.764661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2751.764661][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.764661][ T254] netlink_unicast+0x449/0x710 [ 2751.764661][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.764661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.764661][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.764661][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.764661][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.764661][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2751.764661][ T254] [ 2751.766871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.766871][ T254] netdev_get_by_index+0x5e/0x80 [ 2751.766871][ T254] fib6_nh_init+0x3d8/0x1580 [ 2751.766871][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2751.766871][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2751.766871][ T254] ipv6_add_addr+0x411/0x2000 [ 2751.766871][ T254] inet6_addr_add+0x30e/0xa40 [ 2751.766871][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2751.766871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2751.766871][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.766871][ T254] netlink_unicast+0x449/0x710 [ 2751.766871][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.766871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.766871][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.766871][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.766871][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.766871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2751.766871][ T254] [ 2751.769191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.769191][ T254] netdev_get_by_index+0x5e/0x80 [ 2751.769191][ T254] fib6_nh_init+0x3d8/0x1580 [ 2751.769191][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2751.769191][ T254] ip6_route_add+0x1c/0x140 [ 2751.769191][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2751.769191][ T254] addrconf_add_dev+0xe2/0x170 [ 2751.769191][ T254] inet6_addr_add+0x12f/0xa40 [ 2751.769191][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2751.769191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2751.769191][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.769191][ T254] netlink_unicast+0x449/0x710 [ 2751.769191][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.769191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.769191][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.769191][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.769191][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.769191][ T254] [ 2751.771349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.771349][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2751.771349][ T254] ipv6_find_idev+0x102/0x170 [ 2751.771349][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2751.771349][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2751.771349][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.771349][ T254] netlink_unicast+0x449/0x710 [ 2751.771349][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.771349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.771349][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.771349][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.771349][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.771349][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2751.771349][ T254] [ 2751.773040][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2751.773040][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2751.773040][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2751.773040][ T254] ipv6_find_idev+0x102/0x170 [ 2751.773040][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2751.773040][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2751.773040][ T254] netlink_rcv_skb+0x130/0x360 [ 2751.773040][ T254] netlink_unicast+0x449/0x710 [ 2751.773040][ T254] netlink_sendmsg+0x723/0xbe0 [ 2751.773040][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2751.773040][ T254] ___sys_sendmsg+0xee/0x170 [ 2751.773040][ T254] __sys_sendmsg+0xcd/0x170 [ 2751.773040][ T254] do_syscall_64+0xc6/0x1e0 [ 2751.773040][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2751.773040][ T254] [ 2761.887837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2761.888392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.888392][ T254] dst_init+0x84/0x4a0 [ 2761.888392][ T254] dst_alloc+0x97/0x150 [ 2761.888392][ T254] ip6_dst_alloc+0x23/0x90 [ 2761.888392][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2761.888392][ T254] ip6_pol_route+0x56f/0x840 [ 2761.888392][ T254] fib6_rule_lookup+0x334/0x630 [ 2761.888392][ T254] ip6_route_output_flags+0x259/0x480 [ 2761.888392][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2761.888392][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2761.888392][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.888392][ T254] netlink_unicast+0x449/0x710 [ 2761.888392][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.888392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.888392][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.888392][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.888392][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.888392][ T254] [ 2761.890636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.890636][ T254] netdev_get_by_index+0x5e/0x80 [ 2761.890636][ T254] fib6_nh_init+0x3d8/0x1580 [ 2761.890636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2761.890636][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2761.890636][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2761.890636][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2761.890636][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2761.890636][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2761.890636][ T254] addrconf_dad_begin+0x310/0x670 [ 2761.890636][ T254] addrconf_dad_work+0x10b/0xab0 [ 2761.890636][ T254] process_one_work+0x84d/0x18a0 [ 2761.890636][ T254] worker_thread+0x587/0xd30 [ 2761.890636][ T254] kthread+0x28a/0x350 [ 2761.890636][ T254] ret_from_fork+0x31/0x70 [ 2761.890636][ T254] ret_from_fork_asm+0x1a/0x30 [ 2761.890636][ T254] [ 2761.892809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.892809][ T254] netdev_get_by_index+0x5e/0x80 [ 2761.892809][ T254] fib6_nh_init+0x3d8/0x1580 [ 2761.892809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2761.892809][ T254] ip6_route_add+0x1c/0x140 [ 2761.892809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2761.892809][ T254] inet6_addr_add+0x4f8/0xa40 [ 2761.892809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2761.892809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2761.892809][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.892809][ T254] netlink_unicast+0x449/0x710 [ 2761.892809][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.892809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.892809][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.892809][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.892809][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.892809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2761.892809][ T254] [ 2761.895114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.895114][ T254] netdev_get_by_index+0x5e/0x80 [ 2761.895114][ T254] fib6_nh_init+0x3d8/0x1580 [ 2761.895114][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2761.895114][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2761.895114][ T254] ipv6_add_addr+0x411/0x2000 [ 2761.895114][ T254] inet6_addr_add+0x30e/0xa40 [ 2761.895114][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2761.895114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2761.895114][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.895114][ T254] netlink_unicast+0x449/0x710 [ 2761.895114][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.895114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.895114][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.895114][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.895114][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.895114][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2761.895114][ T254] [ 2761.897380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.897380][ T254] netdev_get_by_index+0x5e/0x80 [ 2761.897380][ T254] fib6_nh_init+0x3d8/0x1580 [ 2761.897380][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2761.897380][ T254] ip6_route_add+0x1c/0x140 [ 2761.897380][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2761.897380][ T254] addrconf_add_dev+0xe2/0x170 [ 2761.897380][ T254] inet6_addr_add+0x12f/0xa40 [ 2761.897380][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2761.897380][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2761.897380][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.897380][ T254] netlink_unicast+0x449/0x710 [ 2761.897380][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.897380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.897380][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.897380][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.897380][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.897380][ T254] [ 2761.899636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.899636][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2761.899636][ T254] ipv6_find_idev+0x102/0x170 [ 2761.899636][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2761.899636][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2761.899636][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.899636][ T254] netlink_unicast+0x449/0x710 [ 2761.899636][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.899636][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.899636][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.899636][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.899636][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.899636][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2761.899636][ T254] [ 2761.901397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2761.901397][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2761.901397][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2761.901397][ T254] ipv6_find_idev+0x102/0x170 [ 2761.901397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2761.901397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2761.901397][ T254] netlink_rcv_skb+0x130/0x360 [ 2761.901397][ T254] netlink_unicast+0x449/0x710 [ 2761.901397][ T254] netlink_sendmsg+0x723/0xbe0 [ 2761.901397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2761.901397][ T254] ___sys_sendmsg+0xee/0x170 [ 2761.901397][ T254] __sys_sendmsg+0xcd/0x170 [ 2761.901397][ T254] do_syscall_64+0xc6/0x1e0 [ 2761.901397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2761.901397][ T254] [ 2772.143948][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2772.144556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.144556][ T254] dst_init+0x84/0x4a0 [ 2772.144556][ T254] dst_alloc+0x97/0x150 [ 2772.144556][ T254] ip6_dst_alloc+0x23/0x90 [ 2772.144556][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2772.144556][ T254] ip6_pol_route+0x56f/0x840 [ 2772.144556][ T254] fib6_rule_lookup+0x334/0x630 [ 2772.144556][ T254] ip6_route_output_flags+0x259/0x480 [ 2772.144556][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2772.144556][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2772.144556][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.144556][ T254] netlink_unicast+0x449/0x710 [ 2772.144556][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.144556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.144556][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.144556][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.144556][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.144556][ T254] [ 2772.146630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.146630][ T254] netdev_get_by_index+0x5e/0x80 [ 2772.146630][ T254] fib6_nh_init+0x3d8/0x1580 [ 2772.146630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2772.146630][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2772.146630][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2772.146630][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2772.146630][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2772.146630][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2772.146630][ T254] addrconf_dad_begin+0x310/0x670 [ 2772.146630][ T254] addrconf_dad_work+0x10b/0xab0 [ 2772.146630][ T254] process_one_work+0x84d/0x18a0 [ 2772.146630][ T254] worker_thread+0x587/0xd30 [ 2772.146630][ T254] kthread+0x28a/0x350 [ 2772.146630][ T254] ret_from_fork+0x31/0x70 [ 2772.146630][ T254] ret_from_fork_asm+0x1a/0x30 [ 2772.146630][ T254] [ 2772.148713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.148713][ T254] netdev_get_by_index+0x5e/0x80 [ 2772.148713][ T254] fib6_nh_init+0x3d8/0x1580 [ 2772.148713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2772.148713][ T254] ip6_route_add+0x1c/0x140 [ 2772.148713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2772.148713][ T254] inet6_addr_add+0x4f8/0xa40 [ 2772.148713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2772.148713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2772.148713][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.148713][ T254] netlink_unicast+0x449/0x710 [ 2772.148713][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.148713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.148713][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.148713][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.148713][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.148713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2772.148713][ T254] [ 2772.150957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.150957][ T254] netdev_get_by_index+0x5e/0x80 [ 2772.150957][ T254] fib6_nh_init+0x3d8/0x1580 [ 2772.150957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2772.150957][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2772.150957][ T254] ipv6_add_addr+0x411/0x2000 [ 2772.150957][ T254] inet6_addr_add+0x30e/0xa40 [ 2772.150957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2772.150957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2772.150957][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.150957][ T254] netlink_unicast+0x449/0x710 [ 2772.150957][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.150957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.150957][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.150957][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.150957][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.150957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2772.150957][ T254] [ 2772.153233][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.153233][ T254] netdev_get_by_index+0x5e/0x80 [ 2772.153233][ T254] fib6_nh_init+0x3d8/0x1580 [ 2772.153233][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2772.153233][ T254] ip6_route_add+0x1c/0x140 [ 2772.153233][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2772.153233][ T254] addrconf_add_dev+0xe2/0x170 [ 2772.153233][ T254] inet6_addr_add+0x12f/0xa40 [ 2772.153233][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2772.153233][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2772.153233][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.153233][ T254] netlink_unicast+0x449/0x710 [ 2772.153233][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.153233][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.153233][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.153233][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.153233][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.153233][ T254] [ 2772.155499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.155499][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2772.155499][ T254] ipv6_find_idev+0x102/0x170 [ 2772.155499][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2772.155499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2772.155499][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.155499][ T254] netlink_unicast+0x449/0x710 [ 2772.155499][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.155499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.155499][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.155499][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.155499][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.155499][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2772.155499][ T254] [ 2772.157287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2772.157287][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2772.157287][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2772.157287][ T254] ipv6_find_idev+0x102/0x170 [ 2772.157287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2772.157287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2772.157287][ T254] netlink_rcv_skb+0x130/0x360 [ 2772.157287][ T254] netlink_unicast+0x449/0x710 [ 2772.157287][ T254] netlink_sendmsg+0x723/0xbe0 [ 2772.157287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2772.157287][ T254] ___sys_sendmsg+0xee/0x170 [ 2772.157287][ T254] __sys_sendmsg+0xcd/0x170 [ 2772.157287][ T254] do_syscall_64+0xc6/0x1e0 [ 2772.157287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2772.157287][ T254] [ 2782.399914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2782.400603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.400603][ T254] dst_init+0x84/0x4a0 [ 2782.400603][ T254] dst_alloc+0x97/0x150 [ 2782.400603][ T254] ip6_dst_alloc+0x23/0x90 [ 2782.400603][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2782.400603][ T254] ip6_pol_route+0x56f/0x840 [ 2782.400603][ T254] fib6_rule_lookup+0x334/0x630 [ 2782.400603][ T254] ip6_route_output_flags+0x259/0x480 [ 2782.400603][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2782.400603][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2782.400603][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.400603][ T254] netlink_unicast+0x449/0x710 [ 2782.400603][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.400603][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.400603][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.400603][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.400603][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.400603][ T254] [ 2782.402821][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.402821][ T254] netdev_get_by_index+0x5e/0x80 [ 2782.402821][ T254] fib6_nh_init+0x3d8/0x1580 [ 2782.402821][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2782.402821][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2782.402821][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2782.402821][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2782.402821][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2782.402821][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2782.402821][ T254] addrconf_dad_begin+0x310/0x670 [ 2782.402821][ T254] addrconf_dad_work+0x10b/0xab0 [ 2782.402821][ T254] process_one_work+0x84d/0x18a0 [ 2782.402821][ T254] worker_thread+0x587/0xd30 [ 2782.402821][ T254] kthread+0x28a/0x350 [ 2782.402821][ T254] ret_from_fork+0x31/0x70 [ 2782.402821][ T254] ret_from_fork_asm+0x1a/0x30 [ 2782.402821][ T254] [ 2782.404991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.404991][ T254] netdev_get_by_index+0x5e/0x80 [ 2782.404991][ T254] fib6_nh_init+0x3d8/0x1580 [ 2782.404991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2782.404991][ T254] ip6_route_add+0x1c/0x140 [ 2782.404991][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2782.404991][ T254] inet6_addr_add+0x4f8/0xa40 [ 2782.404991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2782.404991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2782.404991][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.404991][ T254] netlink_unicast+0x449/0x710 [ 2782.404991][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.404991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.404991][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.404991][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.404991][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.404991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2782.404991][ T254] [ 2782.407285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.407285][ T254] netdev_get_by_index+0x5e/0x80 [ 2782.407285][ T254] fib6_nh_init+0x3d8/0x1580 [ 2782.407285][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2782.407285][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2782.407285][ T254] ipv6_add_addr+0x411/0x2000 [ 2782.407285][ T254] inet6_addr_add+0x30e/0xa40 [ 2782.407285][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2782.407285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2782.407285][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.407285][ T254] netlink_unicast+0x449/0x710 [ 2782.407285][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.407285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.407285][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.407285][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.407285][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.407285][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2782.407285][ T254] [ 2782.409559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.409559][ T254] netdev_get_by_index+0x5e/0x80 [ 2782.409559][ T254] fib6_nh_init+0x3d8/0x1580 [ 2782.409559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2782.409559][ T254] ip6_route_add+0x1c/0x140 [ 2782.409559][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2782.409559][ T254] addrconf_add_dev+0xe2/0x170 [ 2782.409559][ T254] inet6_addr_add+0x12f/0xa40 [ 2782.409559][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2782.409559][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2782.409559][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.409559][ T254] netlink_unicast+0x449/0x710 [ 2782.409559][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.409559][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.409559][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.409559][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.409559][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.409559][ T254] [ 2782.411811][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.411811][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2782.411811][ T254] ipv6_find_idev+0x102/0x170 [ 2782.411811][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2782.411811][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2782.411811][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.411811][ T254] netlink_unicast+0x449/0x710 [ 2782.411811][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.411811][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.411811][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.411811][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.411811][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.411811][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2782.411811][ T254] [ 2782.413534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2782.413534][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2782.413534][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2782.413534][ T254] ipv6_find_idev+0x102/0x170 [ 2782.413534][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2782.413534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2782.413534][ T254] netlink_rcv_skb+0x130/0x360 [ 2782.413534][ T254] netlink_unicast+0x449/0x710 [ 2782.413534][ T254] netlink_sendmsg+0x723/0xbe0 [ 2782.413534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2782.413534][ T254] ___sys_sendmsg+0xee/0x170 [ 2782.413534][ T254] __sys_sendmsg+0xcd/0x170 [ 2782.413534][ T254] do_syscall_64+0xc6/0x1e0 [ 2782.413534][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2782.413534][ T254] [ 2792.655923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2792.656577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.656577][ T254] dst_init+0x84/0x4a0 [ 2792.656577][ T254] dst_alloc+0x97/0x150 [ 2792.656577][ T254] ip6_dst_alloc+0x23/0x90 [ 2792.656577][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2792.656577][ T254] ip6_pol_route+0x56f/0x840 [ 2792.656577][ T254] fib6_rule_lookup+0x334/0x630 [ 2792.656577][ T254] ip6_route_output_flags+0x259/0x480 [ 2792.656577][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2792.656577][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2792.656577][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.656577][ T254] netlink_unicast+0x449/0x710 [ 2792.656577][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.656577][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.656577][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.656577][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.656577][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.656577][ T254] [ 2792.658724][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.658724][ T254] netdev_get_by_index+0x5e/0x80 [ 2792.658724][ T254] fib6_nh_init+0x3d8/0x1580 [ 2792.658724][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2792.658724][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2792.658724][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2792.658724][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2792.658724][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2792.658724][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2792.658724][ T254] addrconf_dad_begin+0x310/0x670 [ 2792.658724][ T254] addrconf_dad_work+0x10b/0xab0 [ 2792.658724][ T254] process_one_work+0x84d/0x18a0 [ 2792.658724][ T254] worker_thread+0x587/0xd30 [ 2792.658724][ T254] kthread+0x28a/0x350 [ 2792.658724][ T254] ret_from_fork+0x31/0x70 [ 2792.658724][ T254] ret_from_fork_asm+0x1a/0x30 [ 2792.658724][ T254] [ 2792.660820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.660820][ T254] netdev_get_by_index+0x5e/0x80 [ 2792.660820][ T254] fib6_nh_init+0x3d8/0x1580 [ 2792.660820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2792.660820][ T254] ip6_route_add+0x1c/0x140 [ 2792.660820][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2792.660820][ T254] inet6_addr_add+0x4f8/0xa40 [ 2792.660820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2792.660820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2792.660820][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.660820][ T254] netlink_unicast+0x449/0x710 [ 2792.660820][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.660820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.660820][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.660820][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.660820][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.660820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2792.660820][ T254] [ 2792.662932][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.662932][ T254] netdev_get_by_index+0x5e/0x80 [ 2792.662932][ T254] fib6_nh_init+0x3d8/0x1580 [ 2792.662932][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2792.662932][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2792.662932][ T254] ipv6_add_addr+0x411/0x2000 [ 2792.662932][ T254] inet6_addr_add+0x30e/0xa40 [ 2792.662932][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2792.662932][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2792.662932][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.662932][ T254] netlink_unicast+0x449/0x710 [ 2792.662932][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.662932][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.662932][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.662932][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.662932][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.662932][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2792.662932][ T254] [ 2792.665179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.665179][ T254] netdev_get_by_index+0x5e/0x80 [ 2792.665179][ T254] fib6_nh_init+0x3d8/0x1580 [ 2792.665179][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2792.665179][ T254] ip6_route_add+0x1c/0x140 [ 2792.665179][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2792.665179][ T254] addrconf_add_dev+0xe2/0x170 [ 2792.665179][ T254] inet6_addr_add+0x12f/0xa40 [ 2792.665179][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2792.665179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2792.665179][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.665179][ T254] netlink_unicast+0x449/0x710 [ 2792.665179][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.665179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.665179][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.665179][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.665179][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.665179][ T254] [ 2792.667431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.667431][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2792.667431][ T254] ipv6_find_idev+0x102/0x170 [ 2792.667431][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2792.667431][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2792.667431][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.667431][ T254] netlink_unicast+0x449/0x710 [ 2792.667431][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.667431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.667431][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.667431][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.667431][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.667431][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2792.667431][ T254] [ 2792.669180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2792.669180][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2792.669180][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2792.669180][ T254] ipv6_find_idev+0x102/0x170 [ 2792.669180][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2792.669180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2792.669180][ T254] netlink_rcv_skb+0x130/0x360 [ 2792.669180][ T254] netlink_unicast+0x449/0x710 [ 2792.669180][ T254] netlink_sendmsg+0x723/0xbe0 [ 2792.669180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2792.669180][ T254] ___sys_sendmsg+0xee/0x170 [ 2792.669180][ T254] __sys_sendmsg+0xcd/0x170 [ 2792.669180][ T254] do_syscall_64+0xc6/0x1e0 [ 2792.669180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2792.669180][ T254] [ 2802.799925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2802.800460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.800460][ T254] dst_init+0x84/0x4a0 [ 2802.800460][ T254] dst_alloc+0x97/0x150 [ 2802.800460][ T254] ip6_dst_alloc+0x23/0x90 [ 2802.800460][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2802.800460][ T254] ip6_pol_route+0x56f/0x840 [ 2802.800460][ T254] fib6_rule_lookup+0x334/0x630 [ 2802.800460][ T254] ip6_route_output_flags+0x259/0x480 [ 2802.800460][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2802.800460][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2802.800460][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.800460][ T254] netlink_unicast+0x449/0x710 [ 2802.800460][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.800460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.800460][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.800460][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.800460][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.800460][ T254] [ 2802.802675][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.802675][ T254] netdev_get_by_index+0x5e/0x80 [ 2802.802675][ T254] fib6_nh_init+0x3d8/0x1580 [ 2802.802675][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2802.802675][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2802.802675][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2802.802675][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2802.802675][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2802.802675][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2802.802675][ T254] addrconf_dad_begin+0x310/0x670 [ 2802.802675][ T254] addrconf_dad_work+0x10b/0xab0 [ 2802.802675][ T254] process_one_work+0x84d/0x18a0 [ 2802.802675][ T254] worker_thread+0x587/0xd30 [ 2802.802675][ T254] kthread+0x28a/0x350 [ 2802.802675][ T254] ret_from_fork+0x31/0x70 [ 2802.802675][ T254] ret_from_fork_asm+0x1a/0x30 [ 2802.802675][ T254] [ 2802.804858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.804858][ T254] netdev_get_by_index+0x5e/0x80 [ 2802.804858][ T254] fib6_nh_init+0x3d8/0x1580 [ 2802.804858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2802.804858][ T254] ip6_route_add+0x1c/0x140 [ 2802.804858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2802.804858][ T254] inet6_addr_add+0x4f8/0xa40 [ 2802.804858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2802.804858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2802.804858][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.804858][ T254] netlink_unicast+0x449/0x710 [ 2802.804858][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.804858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.804858][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.804858][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.804858][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.804858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2802.804858][ T254] [ 2802.807062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.807062][ T254] netdev_get_by_index+0x5e/0x80 [ 2802.807062][ T254] fib6_nh_init+0x3d8/0x1580 [ 2802.807062][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2802.807062][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2802.807062][ T254] ipv6_add_addr+0x411/0x2000 [ 2802.807062][ T254] inet6_addr_add+0x30e/0xa40 [ 2802.807062][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2802.807062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2802.807062][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.807062][ T254] netlink_unicast+0x449/0x710 [ 2802.807062][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.807062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.807062][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.807062][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.807062][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.807062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2802.807062][ T254] [ 2802.809353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.809353][ T254] netdev_get_by_index+0x5e/0x80 [ 2802.809353][ T254] fib6_nh_init+0x3d8/0x1580 [ 2802.809353][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2802.809353][ T254] ip6_route_add+0x1c/0x140 [ 2802.809353][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2802.809353][ T254] addrconf_add_dev+0xe2/0x170 [ 2802.809353][ T254] inet6_addr_add+0x12f/0xa40 [ 2802.809353][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2802.809353][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2802.809353][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.809353][ T254] netlink_unicast+0x449/0x710 [ 2802.809353][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.809353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.809353][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.809353][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.809353][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.809353][ T254] [ 2802.811611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.811611][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2802.811611][ T254] ipv6_find_idev+0x102/0x170 [ 2802.811611][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2802.811611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2802.811611][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.811611][ T254] netlink_unicast+0x449/0x710 [ 2802.811611][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.811611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.811611][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.811611][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.811611][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.811611][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2802.811611][ T254] [ 2802.813367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2802.813367][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2802.813367][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2802.813367][ T254] ipv6_find_idev+0x102/0x170 [ 2802.813367][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2802.813367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2802.813367][ T254] netlink_rcv_skb+0x130/0x360 [ 2802.813367][ T254] netlink_unicast+0x449/0x710 [ 2802.813367][ T254] netlink_sendmsg+0x723/0xbe0 [ 2802.813367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2802.813367][ T254] ___sys_sendmsg+0xee/0x170 [ 2802.813367][ T254] __sys_sendmsg+0xcd/0x170 [ 2802.813367][ T254] do_syscall_64+0xc6/0x1e0 [ 2802.813367][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2802.813367][ T254] [ 2813.055903][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2813.056624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.056624][ T254] dst_init+0x84/0x4a0 [ 2813.056624][ T254] dst_alloc+0x97/0x150 [ 2813.056624][ T254] ip6_dst_alloc+0x23/0x90 [ 2813.056624][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2813.056624][ T254] ip6_pol_route+0x56f/0x840 [ 2813.056624][ T254] fib6_rule_lookup+0x334/0x630 [ 2813.056624][ T254] ip6_route_output_flags+0x259/0x480 [ 2813.056624][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2813.056624][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2813.056624][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.056624][ T254] netlink_unicast+0x449/0x710 [ 2813.056624][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.056624][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.056624][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.056624][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.056624][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.056624][ T254] [ 2813.058778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.058778][ T254] netdev_get_by_index+0x5e/0x80 [ 2813.058778][ T254] fib6_nh_init+0x3d8/0x1580 [ 2813.058778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2813.058778][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2813.058778][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2813.058778][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2813.058778][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2813.058778][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2813.058778][ T254] addrconf_dad_begin+0x310/0x670 [ 2813.058778][ T254] addrconf_dad_work+0x10b/0xab0 [ 2813.058778][ T254] process_one_work+0x84d/0x18a0 [ 2813.058778][ T254] worker_thread+0x587/0xd30 [ 2813.058778][ T254] kthread+0x28a/0x350 [ 2813.058778][ T254] ret_from_fork+0x31/0x70 [ 2813.058778][ T254] ret_from_fork_asm+0x1a/0x30 [ 2813.058778][ T254] [ 2813.060876][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.060876][ T254] netdev_get_by_index+0x5e/0x80 [ 2813.060876][ T254] fib6_nh_init+0x3d8/0x1580 [ 2813.060876][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2813.060876][ T254] ip6_route_add+0x1c/0x140 [ 2813.060876][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2813.060876][ T254] inet6_addr_add+0x4f8/0xa40 [ 2813.060876][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2813.060876][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2813.060876][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.060876][ T254] netlink_unicast+0x449/0x710 [ 2813.060876][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.060876][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.060876][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.060876][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.060876][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.060876][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2813.060876][ T254] [ 2813.063072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.063072][ T254] netdev_get_by_index+0x5e/0x80 [ 2813.063072][ T254] fib6_nh_init+0x3d8/0x1580 [ 2813.063072][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2813.063072][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2813.063072][ T254] ipv6_add_addr+0x411/0x2000 [ 2813.063072][ T254] inet6_addr_add+0x30e/0xa40 [ 2813.063072][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2813.063072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2813.063072][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.063072][ T254] netlink_unicast+0x449/0x710 [ 2813.063072][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.063072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.063072][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.063072][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.063072][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.063072][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2813.063072][ T254] [ 2813.065281][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.065281][ T254] netdev_get_by_index+0x5e/0x80 [ 2813.065281][ T254] fib6_nh_init+0x3d8/0x1580 [ 2813.065281][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2813.065281][ T254] ip6_route_add+0x1c/0x140 [ 2813.065281][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2813.065281][ T254] addrconf_add_dev+0xe2/0x170 [ 2813.065281][ T254] inet6_addr_add+0x12f/0xa40 [ 2813.065281][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2813.065281][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2813.065281][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.065281][ T254] netlink_unicast+0x449/0x710 [ 2813.065281][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.065281][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.065281][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.065281][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.065281][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.065281][ T254] [ 2813.067474][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.067474][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2813.067474][ T254] ipv6_find_idev+0x102/0x170 [ 2813.067474][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2813.067474][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2813.067474][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.067474][ T254] netlink_unicast+0x449/0x710 [ 2813.067474][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.067474][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.067474][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.067474][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.067474][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.067474][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2813.067474][ T254] [ 2813.069157][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2813.069157][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2813.069157][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2813.069157][ T254] ipv6_find_idev+0x102/0x170 [ 2813.069157][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2813.069157][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2813.069157][ T254] netlink_rcv_skb+0x130/0x360 [ 2813.069157][ T254] netlink_unicast+0x449/0x710 [ 2813.069157][ T254] netlink_sendmsg+0x723/0xbe0 [ 2813.069157][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2813.069157][ T254] ___sys_sendmsg+0xee/0x170 [ 2813.069157][ T254] __sys_sendmsg+0xcd/0x170 [ 2813.069157][ T254] do_syscall_64+0xc6/0x1e0 [ 2813.069157][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2813.069157][ T254] [ 2823.311913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2823.312469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.312469][ T254] dst_init+0x84/0x4a0 [ 2823.312469][ T254] dst_alloc+0x97/0x150 [ 2823.312469][ T254] ip6_dst_alloc+0x23/0x90 [ 2823.312469][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2823.312469][ T254] ip6_pol_route+0x56f/0x840 [ 2823.312469][ T254] fib6_rule_lookup+0x334/0x630 [ 2823.312469][ T254] ip6_route_output_flags+0x259/0x480 [ 2823.312469][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2823.312469][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2823.312469][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.312469][ T254] netlink_unicast+0x449/0x710 [ 2823.312469][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.312469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.312469][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.312469][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.312469][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.312469][ T254] [ 2823.314652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.314652][ T254] netdev_get_by_index+0x5e/0x80 [ 2823.314652][ T254] fib6_nh_init+0x3d8/0x1580 [ 2823.314652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2823.314652][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2823.314652][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2823.314652][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2823.314652][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2823.314652][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2823.314652][ T254] addrconf_dad_begin+0x310/0x670 [ 2823.314652][ T254] addrconf_dad_work+0x10b/0xab0 [ 2823.314652][ T254] process_one_work+0x84d/0x18a0 [ 2823.314652][ T254] worker_thread+0x587/0xd30 [ 2823.314652][ T254] kthread+0x28a/0x350 [ 2823.314652][ T254] ret_from_fork+0x31/0x70 [ 2823.314652][ T254] ret_from_fork_asm+0x1a/0x30 [ 2823.314652][ T254] [ 2823.316884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.316884][ T254] netdev_get_by_index+0x5e/0x80 [ 2823.316884][ T254] fib6_nh_init+0x3d8/0x1580 [ 2823.316884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2823.316884][ T254] ip6_route_add+0x1c/0x140 [ 2823.316884][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2823.316884][ T254] inet6_addr_add+0x4f8/0xa40 [ 2823.316884][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2823.316884][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2823.316884][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.316884][ T254] netlink_unicast+0x449/0x710 [ 2823.316884][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.316884][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.316884][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.316884][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.316884][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.316884][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2823.316884][ T254] [ 2823.319067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.319067][ T254] netdev_get_by_index+0x5e/0x80 [ 2823.319067][ T254] fib6_nh_init+0x3d8/0x1580 [ 2823.319067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2823.319067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2823.319067][ T254] ipv6_add_addr+0x411/0x2000 [ 2823.319067][ T254] inet6_addr_add+0x30e/0xa40 [ 2823.319067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2823.319067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2823.319067][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.319067][ T254] netlink_unicast+0x449/0x710 [ 2823.319067][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.319067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.319067][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.319067][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.319067][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.319067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2823.319067][ T254] [ 2823.321251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.321251][ T254] netdev_get_by_index+0x5e/0x80 [ 2823.321251][ T254] fib6_nh_init+0x3d8/0x1580 [ 2823.321251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2823.321251][ T254] ip6_route_add+0x1c/0x140 [ 2823.321251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2823.321251][ T254] addrconf_add_dev+0xe2/0x170 [ 2823.321251][ T254] inet6_addr_add+0x12f/0xa40 [ 2823.321251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2823.321251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2823.321251][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.321251][ T254] netlink_unicast+0x449/0x710 [ 2823.321251][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.321251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.321251][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.321251][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.321251][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.321251][ T254] [ 2823.323406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.323406][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2823.323406][ T254] ipv6_find_idev+0x102/0x170 [ 2823.323406][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2823.323406][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2823.323406][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.323406][ T254] netlink_unicast+0x449/0x710 [ 2823.323406][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.323406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.323406][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.323406][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.323406][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.323406][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2823.323406][ T254] [ 2823.325141][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2823.325141][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2823.325141][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2823.325141][ T254] ipv6_find_idev+0x102/0x170 [ 2823.325141][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2823.325141][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2823.325141][ T254] netlink_rcv_skb+0x130/0x360 [ 2823.325141][ T254] netlink_unicast+0x449/0x710 [ 2823.325141][ T254] netlink_sendmsg+0x723/0xbe0 [ 2823.325141][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2823.325141][ T254] ___sys_sendmsg+0xee/0x170 [ 2823.325141][ T254] __sys_sendmsg+0xcd/0x170 [ 2823.325141][ T254] do_syscall_64+0xc6/0x1e0 [ 2823.325141][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2823.325141][ T254] [ 2833.479922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2833.480507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.480507][ T254] dst_init+0x84/0x4a0 [ 2833.480507][ T254] dst_alloc+0x97/0x150 [ 2833.480507][ T254] ip6_dst_alloc+0x23/0x90 [ 2833.480507][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2833.480507][ T254] ip6_pol_route+0x56f/0x840 [ 2833.480507][ T254] fib6_rule_lookup+0x334/0x630 [ 2833.480507][ T254] ip6_route_output_flags+0x259/0x480 [ 2833.480507][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2833.480507][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2833.480507][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.480507][ T254] netlink_unicast+0x449/0x710 [ 2833.480507][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.480507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.480507][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.480507][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.480507][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.480507][ T254] [ 2833.482701][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.482701][ T254] netdev_get_by_index+0x5e/0x80 [ 2833.482701][ T254] fib6_nh_init+0x3d8/0x1580 [ 2833.482701][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2833.482701][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2833.482701][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2833.482701][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2833.482701][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2833.482701][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2833.482701][ T254] addrconf_dad_begin+0x310/0x670 [ 2833.482701][ T254] addrconf_dad_work+0x10b/0xab0 [ 2833.482701][ T254] process_one_work+0x84d/0x18a0 [ 2833.482701][ T254] worker_thread+0x587/0xd30 [ 2833.482701][ T254] kthread+0x28a/0x350 [ 2833.482701][ T254] ret_from_fork+0x31/0x70 [ 2833.482701][ T254] ret_from_fork_asm+0x1a/0x30 [ 2833.482701][ T254] [ 2833.484888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.484888][ T254] netdev_get_by_index+0x5e/0x80 [ 2833.484888][ T254] fib6_nh_init+0x3d8/0x1580 [ 2833.484888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2833.484888][ T254] ip6_route_add+0x1c/0x140 [ 2833.484888][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2833.484888][ T254] inet6_addr_add+0x4f8/0xa40 [ 2833.484888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2833.484888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2833.484888][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.484888][ T254] netlink_unicast+0x449/0x710 [ 2833.484888][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.484888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.484888][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.484888][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.484888][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.484888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2833.484888][ T254] [ 2833.487131][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.487131][ T254] netdev_get_by_index+0x5e/0x80 [ 2833.487131][ T254] fib6_nh_init+0x3d8/0x1580 [ 2833.487131][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2833.487131][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2833.487131][ T254] ipv6_add_addr+0x411/0x2000 [ 2833.487131][ T254] inet6_addr_add+0x30e/0xa40 [ 2833.487131][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2833.487131][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2833.487131][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.487131][ T254] netlink_unicast+0x449/0x710 [ 2833.487131][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.487131][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.487131][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.487131][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.487131][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.487131][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2833.487131][ T254] [ 2833.489369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.489369][ T254] netdev_get_by_index+0x5e/0x80 [ 2833.489369][ T254] fib6_nh_init+0x3d8/0x1580 [ 2833.489369][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2833.489369][ T254] ip6_route_add+0x1c/0x140 [ 2833.489369][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2833.489369][ T254] addrconf_add_dev+0xe2/0x170 [ 2833.489369][ T254] inet6_addr_add+0x12f/0xa40 [ 2833.489369][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2833.489369][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2833.489369][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.489369][ T254] netlink_unicast+0x449/0x710 [ 2833.489369][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.489369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.489369][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.489369][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.489369][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.489369][ T254] [ 2833.492038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.492038][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2833.492038][ T254] ipv6_find_idev+0x102/0x170 [ 2833.492038][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2833.492038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2833.492038][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.492038][ T254] netlink_unicast+0x449/0x710 [ 2833.492038][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.492038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.492038][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.492038][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.492038][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.492038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2833.492038][ T254] [ 2833.493783][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2833.493783][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2833.493783][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2833.493783][ T254] ipv6_find_idev+0x102/0x170 [ 2833.493783][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2833.493783][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2833.493783][ T254] netlink_rcv_skb+0x130/0x360 [ 2833.493783][ T254] netlink_unicast+0x449/0x710 [ 2833.493783][ T254] netlink_sendmsg+0x723/0xbe0 [ 2833.493783][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2833.493783][ T254] ___sys_sendmsg+0xee/0x170 [ 2833.493783][ T254] __sys_sendmsg+0xcd/0x170 [ 2833.493783][ T254] do_syscall_64+0xc6/0x1e0 [ 2833.493783][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2833.493783][ T254] [ 2843.735914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2843.736719][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.736719][ T254] dst_init+0x84/0x4a0 [ 2843.736719][ T254] dst_alloc+0x97/0x150 [ 2843.736719][ T254] ip6_dst_alloc+0x23/0x90 [ 2843.736719][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2843.736719][ T254] ip6_pol_route+0x56f/0x840 [ 2843.736719][ T254] fib6_rule_lookup+0x334/0x630 [ 2843.736719][ T254] ip6_route_output_flags+0x259/0x480 [ 2843.736719][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2843.736719][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2843.736719][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.736719][ T254] netlink_unicast+0x449/0x710 [ 2843.736719][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.736719][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.736719][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.736719][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.736719][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.736719][ T254] [ 2843.738916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.738916][ T254] netdev_get_by_index+0x5e/0x80 [ 2843.738916][ T254] fib6_nh_init+0x3d8/0x1580 [ 2843.738916][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2843.738916][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2843.738916][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2843.738916][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2843.738916][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2843.738916][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2843.738916][ T254] addrconf_dad_begin+0x310/0x670 [ 2843.738916][ T254] addrconf_dad_work+0x10b/0xab0 [ 2843.738916][ T254] process_one_work+0x84d/0x18a0 [ 2843.738916][ T254] worker_thread+0x587/0xd30 [ 2843.738916][ T254] kthread+0x28a/0x350 [ 2843.738916][ T254] ret_from_fork+0x31/0x70 [ 2843.738916][ T254] ret_from_fork_asm+0x1a/0x30 [ 2843.738916][ T254] [ 2843.741096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.741096][ T254] netdev_get_by_index+0x5e/0x80 [ 2843.741096][ T254] fib6_nh_init+0x3d8/0x1580 [ 2843.741096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2843.741096][ T254] ip6_route_add+0x1c/0x140 [ 2843.741096][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2843.741096][ T254] inet6_addr_add+0x4f8/0xa40 [ 2843.741096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2843.741096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2843.741096][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.741096][ T254] netlink_unicast+0x449/0x710 [ 2843.741096][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.741096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.741096][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.741096][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.741096][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.741096][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2843.741096][ T254] [ 2843.743361][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.743361][ T254] netdev_get_by_index+0x5e/0x80 [ 2843.743361][ T254] fib6_nh_init+0x3d8/0x1580 [ 2843.743361][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2843.743361][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2843.743361][ T254] ipv6_add_addr+0x411/0x2000 [ 2843.743361][ T254] inet6_addr_add+0x30e/0xa40 [ 2843.743361][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2843.743361][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2843.743361][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.743361][ T254] netlink_unicast+0x449/0x710 [ 2843.743361][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.743361][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.743361][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.743361][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.743361][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.743361][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2843.743361][ T254] [ 2843.745612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.745612][ T254] netdev_get_by_index+0x5e/0x80 [ 2843.745612][ T254] fib6_nh_init+0x3d8/0x1580 [ 2843.745612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2843.745612][ T254] ip6_route_add+0x1c/0x140 [ 2843.745612][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2843.745612][ T254] addrconf_add_dev+0xe2/0x170 [ 2843.745612][ T254] inet6_addr_add+0x12f/0xa40 [ 2843.745612][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2843.745612][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2843.745612][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.745612][ T254] netlink_unicast+0x449/0x710 [ 2843.745612][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.745612][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.745612][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.745612][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.745612][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.745612][ T254] [ 2843.747843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.747843][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2843.747843][ T254] ipv6_find_idev+0x102/0x170 [ 2843.747843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2843.747843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2843.747843][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.747843][ T254] netlink_unicast+0x449/0x710 [ 2843.747843][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.747843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.747843][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.747843][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.747843][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.747843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2843.747843][ T254] [ 2843.749603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2843.749603][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2843.749603][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2843.749603][ T254] ipv6_find_idev+0x102/0x170 [ 2843.749603][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2843.749603][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2843.749603][ T254] netlink_rcv_skb+0x130/0x360 [ 2843.749603][ T254] netlink_unicast+0x449/0x710 [ 2843.749603][ T254] netlink_sendmsg+0x723/0xbe0 [ 2843.749603][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2843.749603][ T254] ___sys_sendmsg+0xee/0x170 [ 2843.749603][ T254] __sys_sendmsg+0xcd/0x170 [ 2843.749603][ T254] do_syscall_64+0xc6/0x1e0 [ 2843.749603][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2843.749603][ T254] [ 2853.991994][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2853.992610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2853.992610][ T254] dst_init+0x84/0x4a0 [ 2853.992610][ T254] dst_alloc+0x97/0x150 [ 2853.992610][ T254] ip6_dst_alloc+0x23/0x90 [ 2853.992610][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2853.992610][ T254] ip6_pol_route+0x56f/0x840 [ 2853.992610][ T254] fib6_rule_lookup+0x334/0x630 [ 2853.992610][ T254] ip6_route_output_flags+0x259/0x480 [ 2853.992610][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2853.992610][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2853.992610][ T254] netlink_rcv_skb+0x130/0x360 [ 2853.992610][ T254] netlink_unicast+0x449/0x710 [ 2853.992610][ T254] netlink_sendmsg+0x723/0xbe0 [ 2853.992610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2853.992610][ T254] ___sys_sendmsg+0xee/0x170 [ 2853.992610][ T254] __sys_sendmsg+0xcd/0x170 [ 2853.992610][ T254] do_syscall_64+0xc6/0x1e0 [ 2853.992610][ T254] [ 2853.994813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2853.994813][ T254] netdev_get_by_index+0x5e/0x80 [ 2853.994813][ T254] fib6_nh_init+0x3d8/0x1580 [ 2853.994813][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2853.994813][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2853.994813][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2853.994813][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2853.994813][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2853.994813][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2853.994813][ T254] addrconf_dad_begin+0x310/0x670 [ 2853.994813][ T254] addrconf_dad_work+0x10b/0xab0 [ 2853.994813][ T254] process_one_work+0x84d/0x18a0 [ 2853.994813][ T254] worker_thread+0x587/0xd30 [ 2853.994813][ T254] kthread+0x28a/0x350 [ 2853.994813][ T254] ret_from_fork+0x31/0x70 [ 2853.994813][ T254] ret_from_fork_asm+0x1a/0x30 [ 2853.994813][ T254] [ 2853.996920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2853.996920][ T254] netdev_get_by_index+0x5e/0x80 [ 2853.996920][ T254] fib6_nh_init+0x3d8/0x1580 [ 2853.996920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2853.996920][ T254] ip6_route_add+0x1c/0x140 [ 2853.996920][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2853.996920][ T254] inet6_addr_add+0x4f8/0xa40 [ 2853.996920][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2853.996920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2853.996920][ T254] netlink_rcv_skb+0x130/0x360 [ 2853.996920][ T254] netlink_unicast+0x449/0x710 [ 2853.996920][ T254] netlink_sendmsg+0x723/0xbe0 [ 2853.996920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2853.996920][ T254] ___sys_sendmsg+0xee/0x170 [ 2853.996920][ T254] __sys_sendmsg+0xcd/0x170 [ 2853.996920][ T254] do_syscall_64+0xc6/0x1e0 [ 2853.996920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2853.996920][ T254] [ 2853.999111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2853.999111][ T254] netdev_get_by_index+0x5e/0x80 [ 2853.999111][ T254] fib6_nh_init+0x3d8/0x1580 [ 2853.999111][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2853.999111][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2853.999111][ T254] ipv6_add_addr+0x411/0x2000 [ 2853.999111][ T254] inet6_addr_add+0x30e/0xa40 [ 2853.999111][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2853.999111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2853.999111][ T254] netlink_rcv_skb+0x130/0x360 [ 2853.999111][ T254] netlink_unicast+0x449/0x710 [ 2853.999111][ T254] netlink_sendmsg+0x723/0xbe0 [ 2853.999111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2853.999111][ T254] ___sys_sendmsg+0xee/0x170 [ 2853.999111][ T254] __sys_sendmsg+0xcd/0x170 [ 2853.999111][ T254] do_syscall_64+0xc6/0x1e0 [ 2853.999111][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2853.999111][ T254] [ 2854.001300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2854.001300][ T254] netdev_get_by_index+0x5e/0x80 [ 2854.001300][ T254] fib6_nh_init+0x3d8/0x1580 [ 2854.001300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2854.001300][ T254] ip6_route_add+0x1c/0x140 [ 2854.001300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2854.001300][ T254] addrconf_add_dev+0xe2/0x170 [ 2854.001300][ T254] inet6_addr_add+0x12f/0xa40 [ 2854.001300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2854.001300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2854.001300][ T254] netlink_rcv_skb+0x130/0x360 [ 2854.001300][ T254] netlink_unicast+0x449/0x710 [ 2854.001300][ T254] netlink_sendmsg+0x723/0xbe0 [ 2854.001300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2854.001300][ T254] ___sys_sendmsg+0xee/0x170 [ 2854.001300][ T254] __sys_sendmsg+0xcd/0x170 [ 2854.001300][ T254] do_syscall_64+0xc6/0x1e0 [ 2854.001300][ T254] [ 2854.003466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2854.003466][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2854.003466][ T254] ipv6_find_idev+0x102/0x170 [ 2854.003466][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2854.003466][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2854.003466][ T254] netlink_rcv_skb+0x130/0x360 [ 2854.003466][ T254] netlink_unicast+0x449/0x710 [ 2854.003466][ T254] netlink_sendmsg+0x723/0xbe0 [ 2854.003466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2854.003466][ T254] ___sys_sendmsg+0xee/0x170 [ 2854.003466][ T254] __sys_sendmsg+0xcd/0x170 [ 2854.003466][ T254] do_syscall_64+0xc6/0x1e0 [ 2854.003466][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2854.003466][ T254] [ 2854.005212][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2854.005212][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2854.005212][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2854.005212][ T254] ipv6_find_idev+0x102/0x170 [ 2854.005212][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2854.005212][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2854.005212][ T254] netlink_rcv_skb+0x130/0x360 [ 2854.005212][ T254] netlink_unicast+0x449/0x710 [ 2854.005212][ T254] netlink_sendmsg+0x723/0xbe0 [ 2854.005212][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2854.005212][ T254] ___sys_sendmsg+0xee/0x170 [ 2854.005212][ T254] __sys_sendmsg+0xcd/0x170 [ 2854.005212][ T254] do_syscall_64+0xc6/0x1e0 [ 2854.005212][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2854.005212][ T254] [ 2864.255904][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2864.256678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.256678][ T254] dst_init+0x84/0x4a0 [ 2864.256678][ T254] dst_alloc+0x97/0x150 [ 2864.256678][ T254] ip6_dst_alloc+0x23/0x90 [ 2864.256678][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2864.256678][ T254] ip6_pol_route+0x56f/0x840 [ 2864.256678][ T254] fib6_rule_lookup+0x334/0x630 [ 2864.256678][ T254] ip6_route_output_flags+0x259/0x480 [ 2864.256678][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2864.256678][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2864.256678][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.256678][ T254] netlink_unicast+0x449/0x710 [ 2864.256678][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.256678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.256678][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.256678][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.256678][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.256678][ T254] [ 2864.258842][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.258842][ T254] netdev_get_by_index+0x5e/0x80 [ 2864.258842][ T254] fib6_nh_init+0x3d8/0x1580 [ 2864.258842][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2864.258842][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2864.258842][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2864.258842][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2864.258842][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2864.258842][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2864.258842][ T254] addrconf_dad_begin+0x310/0x670 [ 2864.258842][ T254] addrconf_dad_work+0x10b/0xab0 [ 2864.258842][ T254] process_one_work+0x84d/0x18a0 [ 2864.258842][ T254] worker_thread+0x587/0xd30 [ 2864.258842][ T254] kthread+0x28a/0x350 [ 2864.258842][ T254] ret_from_fork+0x31/0x70 [ 2864.258842][ T254] ret_from_fork_asm+0x1a/0x30 [ 2864.258842][ T254] [ 2864.260937][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.260937][ T254] netdev_get_by_index+0x5e/0x80 [ 2864.260937][ T254] fib6_nh_init+0x3d8/0x1580 [ 2864.260937][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2864.260937][ T254] ip6_route_add+0x1c/0x140 [ 2864.260937][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2864.260937][ T254] inet6_addr_add+0x4f8/0xa40 [ 2864.260937][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2864.260937][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2864.260937][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.260937][ T254] netlink_unicast+0x449/0x710 [ 2864.260937][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.260937][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.260937][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.260937][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.260937][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.260937][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2864.260937][ T254] [ 2864.263231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.263231][ T254] netdev_get_by_index+0x5e/0x80 [ 2864.263231][ T254] fib6_nh_init+0x3d8/0x1580 [ 2864.263231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2864.263231][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2864.263231][ T254] ipv6_add_addr+0x411/0x2000 [ 2864.263231][ T254] inet6_addr_add+0x30e/0xa40 [ 2864.263231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2864.263231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2864.263231][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.263231][ T254] netlink_unicast+0x449/0x710 [ 2864.263231][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.263231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.263231][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.263231][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.263231][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.263231][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2864.263231][ T254] [ 2864.265513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.265513][ T254] netdev_get_by_index+0x5e/0x80 [ 2864.265513][ T254] fib6_nh_init+0x3d8/0x1580 [ 2864.265513][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2864.265513][ T254] ip6_route_add+0x1c/0x140 [ 2864.265513][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2864.265513][ T254] addrconf_add_dev+0xe2/0x170 [ 2864.265513][ T254] inet6_addr_add+0x12f/0xa40 [ 2864.265513][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2864.265513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2864.265513][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.265513][ T254] netlink_unicast+0x449/0x710 [ 2864.265513][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.265513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.265513][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.265513][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.265513][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.265513][ T254] [ 2864.267672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.267672][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2864.267672][ T254] ipv6_find_idev+0x102/0x170 [ 2864.267672][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2864.267672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2864.267672][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.267672][ T254] netlink_unicast+0x449/0x710 [ 2864.267672][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.267672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.267672][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.267672][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.267672][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.267672][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2864.267672][ T254] [ 2864.269390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2864.269390][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2864.269390][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2864.269390][ T254] ipv6_find_idev+0x102/0x170 [ 2864.269390][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2864.269390][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2864.269390][ T254] netlink_rcv_skb+0x130/0x360 [ 2864.269390][ T254] netlink_unicast+0x449/0x710 [ 2864.269390][ T254] netlink_sendmsg+0x723/0xbe0 [ 2864.269390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2864.269390][ T254] ___sys_sendmsg+0xee/0x170 [ 2864.269390][ T254] __sys_sendmsg+0xcd/0x170 [ 2864.269390][ T254] do_syscall_64+0xc6/0x1e0 [ 2864.269390][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2864.269390][ T254] [ 2874.295935][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2874.296528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.296528][ T254] dst_init+0x84/0x4a0 [ 2874.296528][ T254] dst_alloc+0x97/0x150 [ 2874.296528][ T254] ip6_dst_alloc+0x23/0x90 [ 2874.296528][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2874.296528][ T254] ip6_pol_route+0x56f/0x840 [ 2874.296528][ T254] fib6_rule_lookup+0x334/0x630 [ 2874.296528][ T254] ip6_route_output_flags+0x259/0x480 [ 2874.296528][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2874.296528][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2874.296528][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.296528][ T254] netlink_unicast+0x449/0x710 [ 2874.296528][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.296528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.296528][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.296528][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.296528][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.296528][ T254] [ 2874.299101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.299101][ T254] netdev_get_by_index+0x5e/0x80 [ 2874.299101][ T254] fib6_nh_init+0x3d8/0x1580 [ 2874.299101][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2874.299101][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2874.299101][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2874.299101][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2874.299101][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2874.299101][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2874.299101][ T254] addrconf_dad_begin+0x310/0x670 [ 2874.299101][ T254] addrconf_dad_work+0x10b/0xab0 [ 2874.299101][ T254] process_one_work+0x84d/0x18a0 [ 2874.299101][ T254] worker_thread+0x587/0xd30 [ 2874.299101][ T254] kthread+0x28a/0x350 [ 2874.299101][ T254] ret_from_fork+0x31/0x70 [ 2874.299101][ T254] ret_from_fork_asm+0x1a/0x30 [ 2874.299101][ T254] [ 2874.301225][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.301225][ T254] netdev_get_by_index+0x5e/0x80 [ 2874.301225][ T254] fib6_nh_init+0x3d8/0x1580 [ 2874.301225][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2874.301225][ T254] ip6_route_add+0x1c/0x140 [ 2874.301225][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2874.301225][ T254] inet6_addr_add+0x4f8/0xa40 [ 2874.301225][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2874.301225][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2874.301225][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.301225][ T254] netlink_unicast+0x449/0x710 [ 2874.301225][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.301225][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.301225][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.301225][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.301225][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.301225][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2874.301225][ T254] [ 2874.303526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.303526][ T254] netdev_get_by_index+0x5e/0x80 [ 2874.303526][ T254] fib6_nh_init+0x3d8/0x1580 [ 2874.303526][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2874.303526][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2874.303526][ T254] ipv6_add_addr+0x411/0x2000 [ 2874.303526][ T254] inet6_addr_add+0x30e/0xa40 [ 2874.303526][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2874.303526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2874.303526][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.303526][ T254] netlink_unicast+0x449/0x710 [ 2874.303526][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.303526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.303526][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.303526][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.303526][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.303526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2874.303526][ T254] [ 2874.305747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.305747][ T254] netdev_get_by_index+0x5e/0x80 [ 2874.305747][ T254] fib6_nh_init+0x3d8/0x1580 [ 2874.305747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2874.305747][ T254] ip6_route_add+0x1c/0x140 [ 2874.305747][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2874.305747][ T254] addrconf_add_dev+0xe2/0x170 [ 2874.305747][ T254] inet6_addr_add+0x12f/0xa40 [ 2874.305747][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2874.305747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2874.305747][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.305747][ T254] netlink_unicast+0x449/0x710 [ 2874.305747][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.305747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.305747][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.305747][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.305747][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.305747][ T254] [ 2874.307951][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.307951][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2874.307951][ T254] ipv6_find_idev+0x102/0x170 [ 2874.307951][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2874.307951][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2874.307951][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.307951][ T254] netlink_unicast+0x449/0x710 [ 2874.307951][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.307951][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.307951][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.307951][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.307951][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.307951][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2874.307951][ T254] [ 2874.309659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2874.309659][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2874.309659][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2874.309659][ T254] ipv6_find_idev+0x102/0x170 [ 2874.309659][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2874.309659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2874.309659][ T254] netlink_rcv_skb+0x130/0x360 [ 2874.309659][ T254] netlink_unicast+0x449/0x710 [ 2874.309659][ T254] netlink_sendmsg+0x723/0xbe0 [ 2874.309659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2874.309659][ T254] ___sys_sendmsg+0xee/0x170 [ 2874.309659][ T254] __sys_sendmsg+0xcd/0x170 [ 2874.309659][ T254] do_syscall_64+0xc6/0x1e0 [ 2874.309659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2874.309659][ T254] [ 2884.551868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2884.552401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.552401][ T254] dst_init+0x84/0x4a0 [ 2884.552401][ T254] dst_alloc+0x97/0x150 [ 2884.552401][ T254] ip6_dst_alloc+0x23/0x90 [ 2884.552401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2884.552401][ T254] ip6_pol_route+0x56f/0x840 [ 2884.552401][ T254] fib6_rule_lookup+0x334/0x630 [ 2884.552401][ T254] ip6_route_output_flags+0x259/0x480 [ 2884.552401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2884.552401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2884.552401][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.552401][ T254] netlink_unicast+0x449/0x710 [ 2884.552401][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.552401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.552401][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.552401][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.552401][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.552401][ T254] [ 2884.554636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.554636][ T254] netdev_get_by_index+0x5e/0x80 [ 2884.554636][ T254] fib6_nh_init+0x3d8/0x1580 [ 2884.554636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2884.554636][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2884.554636][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2884.554636][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2884.554636][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2884.554636][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2884.554636][ T254] addrconf_dad_begin+0x310/0x670 [ 2884.554636][ T254] addrconf_dad_work+0x10b/0xab0 [ 2884.554636][ T254] process_one_work+0x84d/0x18a0 [ 2884.554636][ T254] worker_thread+0x587/0xd30 [ 2884.554636][ T254] kthread+0x28a/0x350 [ 2884.554636][ T254] ret_from_fork+0x31/0x70 [ 2884.554636][ T254] ret_from_fork_asm+0x1a/0x30 [ 2884.554636][ T254] [ 2884.556779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.556779][ T254] netdev_get_by_index+0x5e/0x80 [ 2884.556779][ T254] fib6_nh_init+0x3d8/0x1580 [ 2884.556779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2884.556779][ T254] ip6_route_add+0x1c/0x140 [ 2884.556779][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2884.556779][ T254] inet6_addr_add+0x4f8/0xa40 [ 2884.556779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2884.556779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2884.556779][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.556779][ T254] netlink_unicast+0x449/0x710 [ 2884.556779][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.556779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.556779][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.556779][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.556779][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.556779][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2884.556779][ T254] [ 2884.559056][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.559056][ T254] netdev_get_by_index+0x5e/0x80 [ 2884.559056][ T254] fib6_nh_init+0x3d8/0x1580 [ 2884.559056][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2884.559056][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2884.559056][ T254] ipv6_add_addr+0x411/0x2000 [ 2884.559056][ T254] inet6_addr_add+0x30e/0xa40 [ 2884.559056][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2884.559056][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2884.559056][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.559056][ T254] netlink_unicast+0x449/0x710 [ 2884.559056][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.559056][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.559056][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.559056][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.559056][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.559056][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2884.559056][ T254] [ 2884.561313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.561313][ T254] netdev_get_by_index+0x5e/0x80 [ 2884.561313][ T254] fib6_nh_init+0x3d8/0x1580 [ 2884.561313][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2884.561313][ T254] ip6_route_add+0x1c/0x140 [ 2884.561313][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2884.561313][ T254] addrconf_add_dev+0xe2/0x170 [ 2884.561313][ T254] inet6_addr_add+0x12f/0xa40 [ 2884.561313][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2884.561313][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2884.561313][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.561313][ T254] netlink_unicast+0x449/0x710 [ 2884.561313][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.561313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.561313][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.561313][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.561313][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.561313][ T254] [ 2884.563495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.563495][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2884.563495][ T254] ipv6_find_idev+0x102/0x170 [ 2884.563495][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2884.563495][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2884.563495][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.563495][ T254] netlink_unicast+0x449/0x710 [ 2884.563495][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.563495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.563495][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.563495][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.563495][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.563495][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2884.563495][ T254] [ 2884.565211][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2884.565211][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2884.565211][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2884.565211][ T254] ipv6_find_idev+0x102/0x170 [ 2884.565211][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2884.565211][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2884.565211][ T254] netlink_rcv_skb+0x130/0x360 [ 2884.565211][ T254] netlink_unicast+0x449/0x710 [ 2884.565211][ T254] netlink_sendmsg+0x723/0xbe0 [ 2884.565211][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2884.565211][ T254] ___sys_sendmsg+0xee/0x170 [ 2884.565211][ T254] __sys_sendmsg+0xcd/0x170 [ 2884.565211][ T254] do_syscall_64+0xc6/0x1e0 [ 2884.565211][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2884.565211][ T254] [ 2894.775961][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2894.776610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.776610][ T254] dst_init+0x84/0x4a0 [ 2894.776610][ T254] dst_alloc+0x97/0x150 [ 2894.776610][ T254] ip6_dst_alloc+0x23/0x90 [ 2894.776610][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2894.776610][ T254] ip6_pol_route+0x56f/0x840 [ 2894.776610][ T254] fib6_rule_lookup+0x334/0x630 [ 2894.776610][ T254] ip6_route_output_flags+0x259/0x480 [ 2894.776610][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2894.776610][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2894.776610][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.776610][ T254] netlink_unicast+0x449/0x710 [ 2894.776610][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.776610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.776610][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.776610][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.776610][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.776610][ T254] [ 2894.778778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.778778][ T254] netdev_get_by_index+0x5e/0x80 [ 2894.778778][ T254] fib6_nh_init+0x3d8/0x1580 [ 2894.778778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2894.778778][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2894.778778][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2894.778778][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2894.778778][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2894.778778][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2894.778778][ T254] addrconf_dad_begin+0x310/0x670 [ 2894.778778][ T254] addrconf_dad_work+0x10b/0xab0 [ 2894.778778][ T254] process_one_work+0x84d/0x18a0 [ 2894.778778][ T254] worker_thread+0x587/0xd30 [ 2894.778778][ T254] kthread+0x28a/0x350 [ 2894.778778][ T254] ret_from_fork+0x31/0x70 [ 2894.778778][ T254] ret_from_fork_asm+0x1a/0x30 [ 2894.778778][ T254] [ 2894.780930][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.780930][ T254] netdev_get_by_index+0x5e/0x80 [ 2894.780930][ T254] fib6_nh_init+0x3d8/0x1580 [ 2894.780930][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2894.780930][ T254] ip6_route_add+0x1c/0x140 [ 2894.780930][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2894.780930][ T254] inet6_addr_add+0x4f8/0xa40 [ 2894.780930][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2894.780930][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2894.780930][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.780930][ T254] netlink_unicast+0x449/0x710 [ 2894.780930][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.780930][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.780930][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.780930][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.780930][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.780930][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2894.780930][ T254] [ 2894.783195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.783195][ T254] netdev_get_by_index+0x5e/0x80 [ 2894.783195][ T254] fib6_nh_init+0x3d8/0x1580 [ 2894.783195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2894.783195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2894.783195][ T254] ipv6_add_addr+0x411/0x2000 [ 2894.783195][ T254] inet6_addr_add+0x30e/0xa40 [ 2894.783195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2894.783195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2894.783195][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.783195][ T254] netlink_unicast+0x449/0x710 [ 2894.783195][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.783195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.783195][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.783195][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.783195][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.783195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2894.783195][ T254] [ 2894.785448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.785448][ T254] netdev_get_by_index+0x5e/0x80 [ 2894.785448][ T254] fib6_nh_init+0x3d8/0x1580 [ 2894.785448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2894.785448][ T254] ip6_route_add+0x1c/0x140 [ 2894.785448][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2894.785448][ T254] addrconf_add_dev+0xe2/0x170 [ 2894.785448][ T254] inet6_addr_add+0x12f/0xa40 [ 2894.785448][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2894.785448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2894.785448][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.785448][ T254] netlink_unicast+0x449/0x710 [ 2894.785448][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.785448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.785448][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.785448][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.785448][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.785448][ T254] [ 2894.787653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.787653][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2894.787653][ T254] ipv6_find_idev+0x102/0x170 [ 2894.787653][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2894.787653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2894.787653][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.787653][ T254] netlink_unicast+0x449/0x710 [ 2894.787653][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.787653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.787653][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.787653][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.787653][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.787653][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2894.787653][ T254] [ 2894.789380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2894.789380][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2894.789380][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2894.789380][ T254] ipv6_find_idev+0x102/0x170 [ 2894.789380][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2894.789380][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2894.789380][ T254] netlink_rcv_skb+0x130/0x360 [ 2894.789380][ T254] netlink_unicast+0x449/0x710 [ 2894.789380][ T254] netlink_sendmsg+0x723/0xbe0 [ 2894.789380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2894.789380][ T254] ___sys_sendmsg+0xee/0x170 [ 2894.789380][ T254] __sys_sendmsg+0xcd/0x170 [ 2894.789380][ T254] do_syscall_64+0xc6/0x1e0 [ 2894.789380][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2894.789380][ T254] [ 2905.031915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2905.032565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.032565][ T254] dst_init+0x84/0x4a0 [ 2905.032565][ T254] dst_alloc+0x97/0x150 [ 2905.032565][ T254] ip6_dst_alloc+0x23/0x90 [ 2905.032565][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2905.032565][ T254] ip6_pol_route+0x56f/0x840 [ 2905.032565][ T254] fib6_rule_lookup+0x334/0x630 [ 2905.032565][ T254] ip6_route_output_flags+0x259/0x480 [ 2905.032565][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2905.032565][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2905.032565][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.032565][ T254] netlink_unicast+0x449/0x710 [ 2905.032565][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.032565][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.032565][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.032565][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.032565][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.032565][ T254] [ 2905.034741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.034741][ T254] netdev_get_by_index+0x5e/0x80 [ 2905.034741][ T254] fib6_nh_init+0x3d8/0x1580 [ 2905.034741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2905.034741][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2905.034741][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2905.034741][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2905.034741][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2905.034741][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2905.034741][ T254] addrconf_dad_begin+0x310/0x670 [ 2905.034741][ T254] addrconf_dad_work+0x10b/0xab0 [ 2905.034741][ T254] process_one_work+0x84d/0x18a0 [ 2905.034741][ T254] worker_thread+0x587/0xd30 [ 2905.034741][ T254] kthread+0x28a/0x350 [ 2905.034741][ T254] ret_from_fork+0x31/0x70 [ 2905.034741][ T254] ret_from_fork_asm+0x1a/0x30 [ 2905.034741][ T254] [ 2905.036841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.036841][ T254] netdev_get_by_index+0x5e/0x80 [ 2905.036841][ T254] fib6_nh_init+0x3d8/0x1580 [ 2905.036841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2905.036841][ T254] ip6_route_add+0x1c/0x140 [ 2905.036841][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2905.036841][ T254] inet6_addr_add+0x4f8/0xa40 [ 2905.036841][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2905.036841][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2905.036841][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.036841][ T254] netlink_unicast+0x449/0x710 [ 2905.036841][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.036841][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.036841][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.036841][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.036841][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.036841][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2905.036841][ T254] [ 2905.039173][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.039173][ T254] netdev_get_by_index+0x5e/0x80 [ 2905.039173][ T254] fib6_nh_init+0x3d8/0x1580 [ 2905.039173][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2905.039173][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2905.039173][ T254] ipv6_add_addr+0x411/0x2000 [ 2905.039173][ T254] inet6_addr_add+0x30e/0xa40 [ 2905.039173][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2905.039173][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2905.039173][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.039173][ T254] netlink_unicast+0x449/0x710 [ 2905.039173][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.039173][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.039173][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.039173][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.039173][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.039173][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2905.039173][ T254] [ 2905.041415][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.041415][ T254] netdev_get_by_index+0x5e/0x80 [ 2905.041415][ T254] fib6_nh_init+0x3d8/0x1580 [ 2905.041415][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2905.041415][ T254] ip6_route_add+0x1c/0x140 [ 2905.041415][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2905.041415][ T254] addrconf_add_dev+0xe2/0x170 [ 2905.041415][ T254] inet6_addr_add+0x12f/0xa40 [ 2905.041415][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2905.041415][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2905.041415][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.041415][ T254] netlink_unicast+0x449/0x710 [ 2905.041415][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.041415][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.041415][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.041415][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.041415][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.041415][ T254] [ 2905.043628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.043628][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2905.043628][ T254] ipv6_find_idev+0x102/0x170 [ 2905.043628][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2905.043628][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2905.043628][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.043628][ T254] netlink_unicast+0x449/0x710 [ 2905.043628][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.043628][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.043628][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.043628][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.043628][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.043628][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2905.043628][ T254] [ 2905.045355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2905.045355][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2905.045355][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2905.045355][ T254] ipv6_find_idev+0x102/0x170 [ 2905.045355][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2905.045355][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2905.045355][ T254] netlink_rcv_skb+0x130/0x360 [ 2905.045355][ T254] netlink_unicast+0x449/0x710 [ 2905.045355][ T254] netlink_sendmsg+0x723/0xbe0 [ 2905.045355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2905.045355][ T254] ___sys_sendmsg+0xee/0x170 [ 2905.045355][ T254] __sys_sendmsg+0xcd/0x170 [ 2905.045355][ T254] do_syscall_64+0xc6/0x1e0 [ 2905.045355][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2905.045355][ T254] [ 2915.287921][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2915.288639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.288639][ T254] dst_init+0x84/0x4a0 [ 2915.288639][ T254] dst_alloc+0x97/0x150 [ 2915.288639][ T254] ip6_dst_alloc+0x23/0x90 [ 2915.288639][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2915.288639][ T254] ip6_pol_route+0x56f/0x840 [ 2915.288639][ T254] fib6_rule_lookup+0x334/0x630 [ 2915.288639][ T254] ip6_route_output_flags+0x259/0x480 [ 2915.288639][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2915.288639][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2915.288639][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.288639][ T254] netlink_unicast+0x449/0x710 [ 2915.288639][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.288639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.288639][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.288639][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.288639][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.288639][ T254] [ 2915.290860][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.290860][ T254] netdev_get_by_index+0x5e/0x80 [ 2915.290860][ T254] fib6_nh_init+0x3d8/0x1580 [ 2915.290860][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2915.290860][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2915.290860][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2915.290860][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2915.290860][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2915.290860][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2915.290860][ T254] addrconf_dad_begin+0x310/0x670 [ 2915.290860][ T254] addrconf_dad_work+0x10b/0xab0 [ 2915.290860][ T254] process_one_work+0x84d/0x18a0 [ 2915.290860][ T254] worker_thread+0x587/0xd30 [ 2915.290860][ T254] kthread+0x28a/0x350 [ 2915.290860][ T254] ret_from_fork+0x31/0x70 [ 2915.290860][ T254] ret_from_fork_asm+0x1a/0x30 [ 2915.290860][ T254] [ 2915.293031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.293031][ T254] netdev_get_by_index+0x5e/0x80 [ 2915.293031][ T254] fib6_nh_init+0x3d8/0x1580 [ 2915.293031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2915.293031][ T254] ip6_route_add+0x1c/0x140 [ 2915.293031][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2915.293031][ T254] inet6_addr_add+0x4f8/0xa40 [ 2915.293031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2915.293031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2915.293031][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.293031][ T254] netlink_unicast+0x449/0x710 [ 2915.293031][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.293031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.293031][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.293031][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.293031][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.293031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2915.293031][ T254] [ 2915.295288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.295288][ T254] netdev_get_by_index+0x5e/0x80 [ 2915.295288][ T254] fib6_nh_init+0x3d8/0x1580 [ 2915.295288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2915.295288][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2915.295288][ T254] ipv6_add_addr+0x411/0x2000 [ 2915.295288][ T254] inet6_addr_add+0x30e/0xa40 [ 2915.295288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2915.295288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2915.295288][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.295288][ T254] netlink_unicast+0x449/0x710 [ 2915.295288][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.295288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.295288][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.295288][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.295288][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.295288][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2915.295288][ T254] [ 2915.297665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.297665][ T254] netdev_get_by_index+0x5e/0x80 [ 2915.297665][ T254] fib6_nh_init+0x3d8/0x1580 [ 2915.297665][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2915.297665][ T254] ip6_route_add+0x1c/0x140 [ 2915.297665][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2915.297665][ T254] addrconf_add_dev+0xe2/0x170 [ 2915.297665][ T254] inet6_addr_add+0x12f/0xa40 [ 2915.297665][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2915.297665][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2915.297665][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.297665][ T254] netlink_unicast+0x449/0x710 [ 2915.297665][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.297665][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.297665][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.297665][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.297665][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.297665][ T254] [ 2915.299870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.299870][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2915.299870][ T254] ipv6_find_idev+0x102/0x170 [ 2915.299870][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2915.299870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2915.299870][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.299870][ T254] netlink_unicast+0x449/0x710 [ 2915.299870][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.299870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.299870][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.299870][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.299870][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.299870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2915.299870][ T254] [ 2915.301615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2915.301615][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2915.301615][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2915.301615][ T254] ipv6_find_idev+0x102/0x170 [ 2915.301615][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2915.301615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2915.301615][ T254] netlink_rcv_skb+0x130/0x360 [ 2915.301615][ T254] netlink_unicast+0x449/0x710 [ 2915.301615][ T254] netlink_sendmsg+0x723/0xbe0 [ 2915.301615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2915.301615][ T254] ___sys_sendmsg+0xee/0x170 [ 2915.301615][ T254] __sys_sendmsg+0xcd/0x170 [ 2915.301615][ T254] do_syscall_64+0xc6/0x1e0 [ 2915.301615][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2915.301615][ T254] [ 2925.543882][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2925.544873][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.544873][ T254] dst_init+0x84/0x4a0 [ 2925.544873][ T254] dst_alloc+0x97/0x150 [ 2925.544873][ T254] ip6_dst_alloc+0x23/0x90 [ 2925.544873][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2925.544873][ T254] ip6_pol_route+0x56f/0x840 [ 2925.544873][ T254] fib6_rule_lookup+0x334/0x630 [ 2925.544873][ T254] ip6_route_output_flags+0x259/0x480 [ 2925.544873][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2925.544873][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2925.544873][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.544873][ T254] netlink_unicast+0x449/0x710 [ 2925.544873][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.544873][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.544873][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.544873][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.544873][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.544873][ T254] [ 2925.547037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.547037][ T254] netdev_get_by_index+0x5e/0x80 [ 2925.547037][ T254] fib6_nh_init+0x3d8/0x1580 [ 2925.547037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2925.547037][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2925.547037][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2925.547037][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2925.547037][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2925.547037][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2925.547037][ T254] addrconf_dad_begin+0x310/0x670 [ 2925.547037][ T254] addrconf_dad_work+0x10b/0xab0 [ 2925.547037][ T254] process_one_work+0x84d/0x18a0 [ 2925.547037][ T254] worker_thread+0x587/0xd30 [ 2925.547037][ T254] kthread+0x28a/0x350 [ 2925.547037][ T254] ret_from_fork+0x31/0x70 [ 2925.547037][ T254] ret_from_fork_asm+0x1a/0x30 [ 2925.547037][ T254] [ 2925.549199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.549199][ T254] netdev_get_by_index+0x5e/0x80 [ 2925.549199][ T254] fib6_nh_init+0x3d8/0x1580 [ 2925.549199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2925.549199][ T254] ip6_route_add+0x1c/0x140 [ 2925.549199][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2925.549199][ T254] inet6_addr_add+0x4f8/0xa40 [ 2925.549199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2925.549199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2925.549199][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.549199][ T254] netlink_unicast+0x449/0x710 [ 2925.549199][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.549199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.549199][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.549199][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.549199][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.549199][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2925.549199][ T254] [ 2925.551446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.551446][ T254] netdev_get_by_index+0x5e/0x80 [ 2925.551446][ T254] fib6_nh_init+0x3d8/0x1580 [ 2925.551446][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2925.551446][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2925.551446][ T254] ipv6_add_addr+0x411/0x2000 [ 2925.551446][ T254] inet6_addr_add+0x30e/0xa40 [ 2925.551446][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2925.551446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2925.551446][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.551446][ T254] netlink_unicast+0x449/0x710 [ 2925.551446][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.551446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.551446][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.551446][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.551446][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.551446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2925.551446][ T254] [ 2925.553638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.553638][ T254] netdev_get_by_index+0x5e/0x80 [ 2925.553638][ T254] fib6_nh_init+0x3d8/0x1580 [ 2925.553638][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2925.553638][ T254] ip6_route_add+0x1c/0x140 [ 2925.553638][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2925.553638][ T254] addrconf_add_dev+0xe2/0x170 [ 2925.553638][ T254] inet6_addr_add+0x12f/0xa40 [ 2925.553638][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2925.553638][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2925.553638][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.553638][ T254] netlink_unicast+0x449/0x710 [ 2925.553638][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.553638][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.553638][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.553638][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.553638][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.553638][ T254] [ 2925.555776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.555776][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2925.555776][ T254] ipv6_find_idev+0x102/0x170 [ 2925.555776][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2925.555776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2925.555776][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.555776][ T254] netlink_unicast+0x449/0x710 [ 2925.555776][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.555776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.555776][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.555776][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.555776][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.555776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2925.555776][ T254] [ 2925.557477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2925.557477][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2925.557477][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2925.557477][ T254] ipv6_find_idev+0x102/0x170 [ 2925.557477][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2925.557477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2925.557477][ T254] netlink_rcv_skb+0x130/0x360 [ 2925.557477][ T254] netlink_unicast+0x449/0x710 [ 2925.557477][ T254] netlink_sendmsg+0x723/0xbe0 [ 2925.557477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2925.557477][ T254] ___sys_sendmsg+0xee/0x170 [ 2925.557477][ T254] __sys_sendmsg+0xcd/0x170 [ 2925.557477][ T254] do_syscall_64+0xc6/0x1e0 [ 2925.557477][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2925.557477][ T254] [ 2935.799912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2935.800576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.800576][ T254] dst_init+0x84/0x4a0 [ 2935.800576][ T254] dst_alloc+0x97/0x150 [ 2935.800576][ T254] ip6_dst_alloc+0x23/0x90 [ 2935.800576][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2935.800576][ T254] ip6_pol_route+0x56f/0x840 [ 2935.800576][ T254] fib6_rule_lookup+0x334/0x630 [ 2935.800576][ T254] ip6_route_output_flags+0x259/0x480 [ 2935.800576][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2935.800576][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2935.800576][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.800576][ T254] netlink_unicast+0x449/0x710 [ 2935.800576][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.800576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.800576][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.800576][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.800576][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.800576][ T254] [ 2935.802728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.802728][ T254] netdev_get_by_index+0x5e/0x80 [ 2935.802728][ T254] fib6_nh_init+0x3d8/0x1580 [ 2935.802728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2935.802728][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2935.802728][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2935.802728][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2935.802728][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2935.802728][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2935.802728][ T254] addrconf_dad_begin+0x310/0x670 [ 2935.802728][ T254] addrconf_dad_work+0x10b/0xab0 [ 2935.802728][ T254] process_one_work+0x84d/0x18a0 [ 2935.802728][ T254] worker_thread+0x587/0xd30 [ 2935.802728][ T254] kthread+0x28a/0x350 [ 2935.802728][ T254] ret_from_fork+0x31/0x70 [ 2935.802728][ T254] ret_from_fork_asm+0x1a/0x30 [ 2935.802728][ T254] [ 2935.804842][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.804842][ T254] netdev_get_by_index+0x5e/0x80 [ 2935.804842][ T254] fib6_nh_init+0x3d8/0x1580 [ 2935.804842][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2935.804842][ T254] ip6_route_add+0x1c/0x140 [ 2935.804842][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2935.804842][ T254] inet6_addr_add+0x4f8/0xa40 [ 2935.804842][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2935.804842][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2935.804842][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.804842][ T254] netlink_unicast+0x449/0x710 [ 2935.804842][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.804842][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.804842][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.804842][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.804842][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.804842][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2935.804842][ T254] [ 2935.807045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.807045][ T254] netdev_get_by_index+0x5e/0x80 [ 2935.807045][ T254] fib6_nh_init+0x3d8/0x1580 [ 2935.807045][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2935.807045][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2935.807045][ T254] ipv6_add_addr+0x411/0x2000 [ 2935.807045][ T254] inet6_addr_add+0x30e/0xa40 [ 2935.807045][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2935.807045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2935.807045][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.807045][ T254] netlink_unicast+0x449/0x710 [ 2935.807045][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.807045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.807045][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.807045][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.807045][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.807045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2935.807045][ T254] [ 2935.809229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.809229][ T254] netdev_get_by_index+0x5e/0x80 [ 2935.809229][ T254] fib6_nh_init+0x3d8/0x1580 [ 2935.809229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2935.809229][ T254] ip6_route_add+0x1c/0x140 [ 2935.809229][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2935.809229][ T254] addrconf_add_dev+0xe2/0x170 [ 2935.809229][ T254] inet6_addr_add+0x12f/0xa40 [ 2935.809229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2935.809229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2935.809229][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.809229][ T254] netlink_unicast+0x449/0x710 [ 2935.809229][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.809229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.809229][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.809229][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.809229][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.809229][ T254] [ 2935.811414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.811414][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2935.811414][ T254] ipv6_find_idev+0x102/0x170 [ 2935.811414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2935.811414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2935.811414][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.811414][ T254] netlink_unicast+0x449/0x710 [ 2935.811414][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.811414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.811414][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.811414][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.811414][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.811414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2935.811414][ T254] [ 2935.813158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2935.813158][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2935.813158][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2935.813158][ T254] ipv6_find_idev+0x102/0x170 [ 2935.813158][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2935.813158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2935.813158][ T254] netlink_rcv_skb+0x130/0x360 [ 2935.813158][ T254] netlink_unicast+0x449/0x710 [ 2935.813158][ T254] netlink_sendmsg+0x723/0xbe0 [ 2935.813158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2935.813158][ T254] ___sys_sendmsg+0xee/0x170 [ 2935.813158][ T254] __sys_sendmsg+0xcd/0x170 [ 2935.813158][ T254] do_syscall_64+0xc6/0x1e0 [ 2935.813158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2935.813158][ T254] [ 2945.919922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2945.920615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.920615][ T254] dst_init+0x84/0x4a0 [ 2945.920615][ T254] dst_alloc+0x97/0x150 [ 2945.920615][ T254] ip6_dst_alloc+0x23/0x90 [ 2945.920615][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2945.920615][ T254] ip6_pol_route+0x56f/0x840 [ 2945.920615][ T254] fib6_rule_lookup+0x334/0x630 [ 2945.920615][ T254] ip6_route_output_flags+0x259/0x480 [ 2945.920615][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2945.920615][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2945.920615][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.920615][ T254] netlink_unicast+0x449/0x710 [ 2945.920615][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.920615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.920615][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.920615][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.920615][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.920615][ T254] [ 2945.922769][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.922769][ T254] netdev_get_by_index+0x5e/0x80 [ 2945.922769][ T254] fib6_nh_init+0x3d8/0x1580 [ 2945.922769][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2945.922769][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2945.922769][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2945.922769][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2945.922769][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2945.922769][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2945.922769][ T254] addrconf_dad_begin+0x310/0x670 [ 2945.922769][ T254] addrconf_dad_work+0x10b/0xab0 [ 2945.922769][ T254] process_one_work+0x84d/0x18a0 [ 2945.922769][ T254] worker_thread+0x587/0xd30 [ 2945.922769][ T254] kthread+0x28a/0x350 [ 2945.922769][ T254] ret_from_fork+0x31/0x70 [ 2945.922769][ T254] ret_from_fork_asm+0x1a/0x30 [ 2945.922769][ T254] [ 2945.924926][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.924926][ T254] netdev_get_by_index+0x5e/0x80 [ 2945.924926][ T254] fib6_nh_init+0x3d8/0x1580 [ 2945.924926][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2945.924926][ T254] ip6_route_add+0x1c/0x140 [ 2945.924926][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2945.924926][ T254] inet6_addr_add+0x4f8/0xa40 [ 2945.924926][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2945.924926][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2945.924926][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.924926][ T254] netlink_unicast+0x449/0x710 [ 2945.924926][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.924926][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.924926][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.924926][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.924926][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.924926][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2945.924926][ T254] [ 2945.927109][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.927109][ T254] netdev_get_by_index+0x5e/0x80 [ 2945.927109][ T254] fib6_nh_init+0x3d8/0x1580 [ 2945.927109][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2945.927109][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2945.927109][ T254] ipv6_add_addr+0x411/0x2000 [ 2945.927109][ T254] inet6_addr_add+0x30e/0xa40 [ 2945.927109][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2945.927109][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2945.927109][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.927109][ T254] netlink_unicast+0x449/0x710 [ 2945.927109][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.927109][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.927109][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.927109][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.927109][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.927109][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2945.927109][ T254] [ 2945.929346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.929346][ T254] netdev_get_by_index+0x5e/0x80 [ 2945.929346][ T254] fib6_nh_init+0x3d8/0x1580 [ 2945.929346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2945.929346][ T254] ip6_route_add+0x1c/0x140 [ 2945.929346][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2945.929346][ T254] addrconf_add_dev+0xe2/0x170 [ 2945.929346][ T254] inet6_addr_add+0x12f/0xa40 [ 2945.929346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2945.929346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2945.929346][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.929346][ T254] netlink_unicast+0x449/0x710 [ 2945.929346][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.929346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.929346][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.929346][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.929346][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.929346][ T254] [ 2945.931484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.931484][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2945.931484][ T254] ipv6_find_idev+0x102/0x170 [ 2945.931484][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2945.931484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2945.931484][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.931484][ T254] netlink_unicast+0x449/0x710 [ 2945.931484][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.931484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.931484][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.931484][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.931484][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.931484][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2945.931484][ T254] [ 2945.933191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2945.933191][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2945.933191][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2945.933191][ T254] ipv6_find_idev+0x102/0x170 [ 2945.933191][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2945.933191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2945.933191][ T254] netlink_rcv_skb+0x130/0x360 [ 2945.933191][ T254] netlink_unicast+0x449/0x710 [ 2945.933191][ T254] netlink_sendmsg+0x723/0xbe0 [ 2945.933191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2945.933191][ T254] ___sys_sendmsg+0xee/0x170 [ 2945.933191][ T254] __sys_sendmsg+0xcd/0x170 [ 2945.933191][ T254] do_syscall_64+0xc6/0x1e0 [ 2945.933191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2945.933191][ T254] [ 2955.991930][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2955.992601][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2955.992601][ T254] dst_init+0x84/0x4a0 [ 2955.992601][ T254] dst_alloc+0x97/0x150 [ 2955.992601][ T254] ip6_dst_alloc+0x23/0x90 [ 2955.992601][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2955.992601][ T254] ip6_pol_route+0x56f/0x840 [ 2955.992601][ T254] fib6_rule_lookup+0x334/0x630 [ 2955.992601][ T254] ip6_route_output_flags+0x259/0x480 [ 2955.992601][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2955.992601][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2955.992601][ T254] netlink_rcv_skb+0x130/0x360 [ 2955.992601][ T254] netlink_unicast+0x449/0x710 [ 2955.992601][ T254] netlink_sendmsg+0x723/0xbe0 [ 2955.992601][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2955.992601][ T254] ___sys_sendmsg+0xee/0x170 [ 2955.992601][ T254] __sys_sendmsg+0xcd/0x170 [ 2955.992601][ T254] do_syscall_64+0xc6/0x1e0 [ 2955.992601][ T254] [ 2955.994906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2955.994906][ T254] netdev_get_by_index+0x5e/0x80 [ 2955.994906][ T254] fib6_nh_init+0x3d8/0x1580 [ 2955.994906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2955.994906][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2955.994906][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2955.994906][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2955.994906][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2955.994906][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2955.994906][ T254] addrconf_dad_begin+0x310/0x670 [ 2955.994906][ T254] addrconf_dad_work+0x10b/0xab0 [ 2955.994906][ T254] process_one_work+0x84d/0x18a0 [ 2955.994906][ T254] worker_thread+0x587/0xd30 [ 2955.994906][ T254] kthread+0x28a/0x350 [ 2955.994906][ T254] ret_from_fork+0x31/0x70 [ 2955.994906][ T254] ret_from_fork_asm+0x1a/0x30 [ 2955.994906][ T254] [ 2955.997069][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2955.997069][ T254] netdev_get_by_index+0x5e/0x80 [ 2955.997069][ T254] fib6_nh_init+0x3d8/0x1580 [ 2955.997069][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2955.997069][ T254] ip6_route_add+0x1c/0x140 [ 2955.997069][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2955.997069][ T254] inet6_addr_add+0x4f8/0xa40 [ 2955.997069][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2955.997069][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2955.997069][ T254] netlink_rcv_skb+0x130/0x360 [ 2955.997069][ T254] netlink_unicast+0x449/0x710 [ 2955.997069][ T254] netlink_sendmsg+0x723/0xbe0 [ 2955.997069][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2955.997069][ T254] ___sys_sendmsg+0xee/0x170 [ 2955.997069][ T254] __sys_sendmsg+0xcd/0x170 [ 2955.997069][ T254] do_syscall_64+0xc6/0x1e0 [ 2955.997069][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2955.997069][ T254] [ 2955.999299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2955.999299][ T254] netdev_get_by_index+0x5e/0x80 [ 2955.999299][ T254] fib6_nh_init+0x3d8/0x1580 [ 2955.999299][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2955.999299][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2955.999299][ T254] ipv6_add_addr+0x411/0x2000 [ 2955.999299][ T254] inet6_addr_add+0x30e/0xa40 [ 2955.999299][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2955.999299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2955.999299][ T254] netlink_rcv_skb+0x130/0x360 [ 2955.999299][ T254] netlink_unicast+0x449/0x710 [ 2955.999299][ T254] netlink_sendmsg+0x723/0xbe0 [ 2955.999299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2955.999299][ T254] ___sys_sendmsg+0xee/0x170 [ 2955.999299][ T254] __sys_sendmsg+0xcd/0x170 [ 2955.999299][ T254] do_syscall_64+0xc6/0x1e0 [ 2955.999299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2955.999299][ T254] [ 2956.001548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2956.001548][ T254] netdev_get_by_index+0x5e/0x80 [ 2956.001548][ T254] fib6_nh_init+0x3d8/0x1580 [ 2956.001548][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2956.001548][ T254] ip6_route_add+0x1c/0x140 [ 2956.001548][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2956.001548][ T254] addrconf_add_dev+0xe2/0x170 [ 2956.001548][ T254] inet6_addr_add+0x12f/0xa40 [ 2956.001548][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2956.001548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2956.001548][ T254] netlink_rcv_skb+0x130/0x360 [ 2956.001548][ T254] netlink_unicast+0x449/0x710 [ 2956.001548][ T254] netlink_sendmsg+0x723/0xbe0 [ 2956.001548][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2956.001548][ T254] ___sys_sendmsg+0xee/0x170 [ 2956.001548][ T254] __sys_sendmsg+0xcd/0x170 [ 2956.001548][ T254] do_syscall_64+0xc6/0x1e0 [ 2956.001548][ T254] [ 2956.003769][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2956.003769][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2956.003769][ T254] ipv6_find_idev+0x102/0x170 [ 2956.003769][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2956.003769][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2956.003769][ T254] netlink_rcv_skb+0x130/0x360 [ 2956.003769][ T254] netlink_unicast+0x449/0x710 [ 2956.003769][ T254] netlink_sendmsg+0x723/0xbe0 [ 2956.003769][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2956.003769][ T254] ___sys_sendmsg+0xee/0x170 [ 2956.003769][ T254] __sys_sendmsg+0xcd/0x170 [ 2956.003769][ T254] do_syscall_64+0xc6/0x1e0 [ 2956.003769][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2956.003769][ T254] [ 2956.005492][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2956.005492][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2956.005492][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2956.005492][ T254] ipv6_find_idev+0x102/0x170 [ 2956.005492][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2956.005492][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2956.005492][ T254] netlink_rcv_skb+0x130/0x360 [ 2956.005492][ T254] netlink_unicast+0x449/0x710 [ 2956.005492][ T254] netlink_sendmsg+0x723/0xbe0 [ 2956.005492][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2956.005492][ T254] ___sys_sendmsg+0xee/0x170 [ 2956.005492][ T254] __sys_sendmsg+0xcd/0x170 [ 2956.005492][ T254] do_syscall_64+0xc6/0x1e0 [ 2956.005492][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2956.005492][ T254] [ 2966.247939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2966.248715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.248715][ T254] dst_init+0x84/0x4a0 [ 2966.248715][ T254] dst_alloc+0x97/0x150 [ 2966.248715][ T254] ip6_dst_alloc+0x23/0x90 [ 2966.248715][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2966.248715][ T254] ip6_pol_route+0x56f/0x840 [ 2966.248715][ T254] fib6_rule_lookup+0x334/0x630 [ 2966.248715][ T254] ip6_route_output_flags+0x259/0x480 [ 2966.248715][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2966.248715][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2966.248715][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.248715][ T254] netlink_unicast+0x449/0x710 [ 2966.248715][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.248715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.248715][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.248715][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.248715][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.248715][ T254] [ 2966.250906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.250906][ T254] netdev_get_by_index+0x5e/0x80 [ 2966.250906][ T254] fib6_nh_init+0x3d8/0x1580 [ 2966.250906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2966.250906][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2966.250906][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2966.250906][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2966.250906][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2966.250906][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2966.250906][ T254] addrconf_dad_begin+0x310/0x670 [ 2966.250906][ T254] addrconf_dad_work+0x10b/0xab0 [ 2966.250906][ T254] process_one_work+0x84d/0x18a0 [ 2966.250906][ T254] worker_thread+0x587/0xd30 [ 2966.250906][ T254] kthread+0x28a/0x350 [ 2966.250906][ T254] ret_from_fork+0x31/0x70 [ 2966.250906][ T254] ret_from_fork_asm+0x1a/0x30 [ 2966.250906][ T254] [ 2966.253134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.253134][ T254] netdev_get_by_index+0x5e/0x80 [ 2966.253134][ T254] fib6_nh_init+0x3d8/0x1580 [ 2966.253134][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2966.253134][ T254] ip6_route_add+0x1c/0x140 [ 2966.253134][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2966.253134][ T254] inet6_addr_add+0x4f8/0xa40 [ 2966.253134][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2966.253134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2966.253134][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.253134][ T254] netlink_unicast+0x449/0x710 [ 2966.253134][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.253134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.253134][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.253134][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.253134][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.253134][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2966.253134][ T254] [ 2966.255410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.255410][ T254] netdev_get_by_index+0x5e/0x80 [ 2966.255410][ T254] fib6_nh_init+0x3d8/0x1580 [ 2966.255410][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2966.255410][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2966.255410][ T254] ipv6_add_addr+0x411/0x2000 [ 2966.255410][ T254] inet6_addr_add+0x30e/0xa40 [ 2966.255410][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2966.255410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2966.255410][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.255410][ T254] netlink_unicast+0x449/0x710 [ 2966.255410][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.255410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.255410][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.255410][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.255410][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.255410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2966.255410][ T254] [ 2966.257642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.257642][ T254] netdev_get_by_index+0x5e/0x80 [ 2966.257642][ T254] fib6_nh_init+0x3d8/0x1580 [ 2966.257642][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2966.257642][ T254] ip6_route_add+0x1c/0x140 [ 2966.257642][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2966.257642][ T254] addrconf_add_dev+0xe2/0x170 [ 2966.257642][ T254] inet6_addr_add+0x12f/0xa40 [ 2966.257642][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2966.257642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2966.257642][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.257642][ T254] netlink_unicast+0x449/0x710 [ 2966.257642][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.257642][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.257642][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.257642][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.257642][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.257642][ T254] [ 2966.259874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.259874][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2966.259874][ T254] ipv6_find_idev+0x102/0x170 [ 2966.259874][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2966.259874][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2966.259874][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.259874][ T254] netlink_unicast+0x449/0x710 [ 2966.259874][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.259874][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.259874][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.259874][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.259874][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.259874][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2966.259874][ T254] [ 2966.261622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2966.261622][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2966.261622][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2966.261622][ T254] ipv6_find_idev+0x102/0x170 [ 2966.261622][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2966.261622][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2966.261622][ T254] netlink_rcv_skb+0x130/0x360 [ 2966.261622][ T254] netlink_unicast+0x449/0x710 [ 2966.261622][ T254] netlink_sendmsg+0x723/0xbe0 [ 2966.261622][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2966.261622][ T254] ___sys_sendmsg+0xee/0x170 [ 2966.261622][ T254] __sys_sendmsg+0xcd/0x170 [ 2966.261622][ T254] do_syscall_64+0xc6/0x1e0 [ 2966.261622][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2966.261622][ T254] [ 2976.503894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2976.504408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.504408][ T254] dst_init+0x84/0x4a0 [ 2976.504408][ T254] dst_alloc+0x97/0x150 [ 2976.504408][ T254] ip6_dst_alloc+0x23/0x90 [ 2976.504408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2976.504408][ T254] ip6_pol_route+0x56f/0x840 [ 2976.504408][ T254] fib6_rule_lookup+0x334/0x630 [ 2976.504408][ T254] ip6_route_output_flags+0x259/0x480 [ 2976.504408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2976.504408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2976.504408][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.504408][ T254] netlink_unicast+0x449/0x710 [ 2976.504408][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.504408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.504408][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.504408][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.504408][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.504408][ T254] [ 2976.506587][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.506587][ T254] netdev_get_by_index+0x5e/0x80 [ 2976.506587][ T254] fib6_nh_init+0x3d8/0x1580 [ 2976.506587][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2976.506587][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2976.506587][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2976.506587][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2976.506587][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2976.506587][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2976.506587][ T254] addrconf_dad_begin+0x310/0x670 [ 2976.506587][ T254] addrconf_dad_work+0x10b/0xab0 [ 2976.506587][ T254] process_one_work+0x84d/0x18a0 [ 2976.506587][ T254] worker_thread+0x587/0xd30 [ 2976.506587][ T254] kthread+0x28a/0x350 [ 2976.506587][ T254] ret_from_fork+0x31/0x70 [ 2976.506587][ T254] ret_from_fork_asm+0x1a/0x30 [ 2976.506587][ T254] [ 2976.508694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.508694][ T254] netdev_get_by_index+0x5e/0x80 [ 2976.508694][ T254] fib6_nh_init+0x3d8/0x1580 [ 2976.508694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2976.508694][ T254] ip6_route_add+0x1c/0x140 [ 2976.508694][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2976.508694][ T254] inet6_addr_add+0x4f8/0xa40 [ 2976.508694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2976.508694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2976.508694][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.508694][ T254] netlink_unicast+0x449/0x710 [ 2976.508694][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.508694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.508694][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.508694][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.508694][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.508694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2976.508694][ T254] [ 2976.510896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.510896][ T254] netdev_get_by_index+0x5e/0x80 [ 2976.510896][ T254] fib6_nh_init+0x3d8/0x1580 [ 2976.510896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2976.510896][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2976.510896][ T254] ipv6_add_addr+0x411/0x2000 [ 2976.510896][ T254] inet6_addr_add+0x30e/0xa40 [ 2976.510896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2976.510896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2976.510896][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.510896][ T254] netlink_unicast+0x449/0x710 [ 2976.510896][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.510896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.510896][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.510896][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.510896][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.510896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2976.510896][ T254] [ 2976.513170][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.513170][ T254] netdev_get_by_index+0x5e/0x80 [ 2976.513170][ T254] fib6_nh_init+0x3d8/0x1580 [ 2976.513170][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2976.513170][ T254] ip6_route_add+0x1c/0x140 [ 2976.513170][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2976.513170][ T254] addrconf_add_dev+0xe2/0x170 [ 2976.513170][ T254] inet6_addr_add+0x12f/0xa40 [ 2976.513170][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2976.513170][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2976.513170][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.513170][ T254] netlink_unicast+0x449/0x710 [ 2976.513170][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.513170][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.513170][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.513170][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.513170][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.513170][ T254] [ 2976.515320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.515320][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2976.515320][ T254] ipv6_find_idev+0x102/0x170 [ 2976.515320][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2976.515320][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2976.515320][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.515320][ T254] netlink_unicast+0x449/0x710 [ 2976.515320][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.515320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.515320][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.515320][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.515320][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.515320][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2976.515320][ T254] [ 2976.517007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2976.517007][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2976.517007][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2976.517007][ T254] ipv6_find_idev+0x102/0x170 [ 2976.517007][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2976.517007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2976.517007][ T254] netlink_rcv_skb+0x130/0x360 [ 2976.517007][ T254] netlink_unicast+0x449/0x710 [ 2976.517007][ T254] netlink_sendmsg+0x723/0xbe0 [ 2976.517007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2976.517007][ T254] ___sys_sendmsg+0xee/0x170 [ 2976.517007][ T254] __sys_sendmsg+0xcd/0x170 [ 2976.517007][ T254] do_syscall_64+0xc6/0x1e0 [ 2976.517007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2976.517007][ T254] [ 2986.759999][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2986.760759][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.760759][ T254] dst_init+0x84/0x4a0 [ 2986.760759][ T254] dst_alloc+0x97/0x150 [ 2986.760759][ T254] ip6_dst_alloc+0x23/0x90 [ 2986.760759][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2986.760759][ T254] ip6_pol_route+0x56f/0x840 [ 2986.760759][ T254] fib6_rule_lookup+0x334/0x630 [ 2986.760759][ T254] ip6_route_output_flags+0x259/0x480 [ 2986.760759][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2986.760759][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2986.760759][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.760759][ T254] netlink_unicast+0x449/0x710 [ 2986.760759][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.760759][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.760759][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.760759][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.760759][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.760759][ T254] [ 2986.762940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.762940][ T254] netdev_get_by_index+0x5e/0x80 [ 2986.762940][ T254] fib6_nh_init+0x3d8/0x1580 [ 2986.762940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2986.762940][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2986.762940][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2986.762940][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2986.762940][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2986.762940][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2986.762940][ T254] addrconf_dad_begin+0x310/0x670 [ 2986.762940][ T254] addrconf_dad_work+0x10b/0xab0 [ 2986.762940][ T254] process_one_work+0x84d/0x18a0 [ 2986.762940][ T254] worker_thread+0x587/0xd30 [ 2986.762940][ T254] kthread+0x28a/0x350 [ 2986.762940][ T254] ret_from_fork+0x31/0x70 [ 2986.762940][ T254] ret_from_fork_asm+0x1a/0x30 [ 2986.762940][ T254] [ 2986.765076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.765076][ T254] netdev_get_by_index+0x5e/0x80 [ 2986.765076][ T254] fib6_nh_init+0x3d8/0x1580 [ 2986.765076][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2986.765076][ T254] ip6_route_add+0x1c/0x140 [ 2986.765076][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2986.765076][ T254] inet6_addr_add+0x4f8/0xa40 [ 2986.765076][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2986.765076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2986.765076][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.765076][ T254] netlink_unicast+0x449/0x710 [ 2986.765076][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.765076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.765076][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.765076][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.765076][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.765076][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2986.765076][ T254] [ 2986.767336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.767336][ T254] netdev_get_by_index+0x5e/0x80 [ 2986.767336][ T254] fib6_nh_init+0x3d8/0x1580 [ 2986.767336][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2986.767336][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2986.767336][ T254] ipv6_add_addr+0x411/0x2000 [ 2986.767336][ T254] inet6_addr_add+0x30e/0xa40 [ 2986.767336][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2986.767336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2986.767336][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.767336][ T254] netlink_unicast+0x449/0x710 [ 2986.767336][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.767336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.767336][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.767336][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.767336][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.767336][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2986.767336][ T254] [ 2986.769591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.769591][ T254] netdev_get_by_index+0x5e/0x80 [ 2986.769591][ T254] fib6_nh_init+0x3d8/0x1580 [ 2986.769591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2986.769591][ T254] ip6_route_add+0x1c/0x140 [ 2986.769591][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2986.769591][ T254] addrconf_add_dev+0xe2/0x170 [ 2986.769591][ T254] inet6_addr_add+0x12f/0xa40 [ 2986.769591][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2986.769591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2986.769591][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.769591][ T254] netlink_unicast+0x449/0x710 [ 2986.769591][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.769591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.769591][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.769591][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.769591][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.769591][ T254] [ 2986.771796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.771796][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2986.771796][ T254] ipv6_find_idev+0x102/0x170 [ 2986.771796][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2986.771796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2986.771796][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.771796][ T254] netlink_unicast+0x449/0x710 [ 2986.771796][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.771796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.771796][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.771796][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.771796][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.771796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2986.771796][ T254] [ 2986.773548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2986.773548][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2986.773548][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2986.773548][ T254] ipv6_find_idev+0x102/0x170 [ 2986.773548][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2986.773548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2986.773548][ T254] netlink_rcv_skb+0x130/0x360 [ 2986.773548][ T254] netlink_unicast+0x449/0x710 [ 2986.773548][ T254] netlink_sendmsg+0x723/0xbe0 [ 2986.773548][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2986.773548][ T254] ___sys_sendmsg+0xee/0x170 [ 2986.773548][ T254] __sys_sendmsg+0xcd/0x170 [ 2986.773548][ T254] do_syscall_64+0xc6/0x1e0 [ 2986.773548][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2986.773548][ T254] [ 2996.799914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 2996.800582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.800582][ T254] dst_init+0x84/0x4a0 [ 2996.800582][ T254] dst_alloc+0x97/0x150 [ 2996.800582][ T254] ip6_dst_alloc+0x23/0x90 [ 2996.800582][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 2996.800582][ T254] ip6_pol_route+0x56f/0x840 [ 2996.800582][ T254] fib6_rule_lookup+0x334/0x630 [ 2996.800582][ T254] ip6_route_output_flags+0x259/0x480 [ 2996.800582][ T254] inet6_rtm_getroute+0x980/0xf70 [ 2996.800582][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 2996.800582][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.800582][ T254] netlink_unicast+0x449/0x710 [ 2996.800582][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.800582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.800582][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.800582][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.800582][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.800582][ T254] [ 2996.802731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.802731][ T254] netdev_get_by_index+0x5e/0x80 [ 2996.802731][ T254] fib6_nh_init+0x3d8/0x1580 [ 2996.802731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2996.802731][ T254] addrconf_f6i_alloc+0x265/0x560 [ 2996.802731][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 2996.802731][ T254] addrconf_join_anycast+0x1c0/0x220 [ 2996.802731][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 2996.802731][ T254] addrconf_dad_completed+0x12b/0xe20 [ 2996.802731][ T254] addrconf_dad_begin+0x310/0x670 [ 2996.802731][ T254] addrconf_dad_work+0x10b/0xab0 [ 2996.802731][ T254] process_one_work+0x84d/0x18a0 [ 2996.802731][ T254] worker_thread+0x587/0xd30 [ 2996.802731][ T254] kthread+0x28a/0x350 [ 2996.802731][ T254] ret_from_fork+0x31/0x70 [ 2996.802731][ T254] ret_from_fork_asm+0x1a/0x30 [ 2996.802731][ T254] [ 2996.804844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.804844][ T254] netdev_get_by_index+0x5e/0x80 [ 2996.804844][ T254] fib6_nh_init+0x3d8/0x1580 [ 2996.804844][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2996.804844][ T254] ip6_route_add+0x1c/0x140 [ 2996.804844][ T254] addrconf_prefix_route+0x2a6/0x430 [ 2996.804844][ T254] inet6_addr_add+0x4f8/0xa40 [ 2996.804844][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2996.804844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2996.804844][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.804844][ T254] netlink_unicast+0x449/0x710 [ 2996.804844][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.804844][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.804844][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.804844][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.804844][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.804844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2996.804844][ T254] [ 2996.807101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.807101][ T254] netdev_get_by_index+0x5e/0x80 [ 2996.807101][ T254] fib6_nh_init+0x3d8/0x1580 [ 2996.807101][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2996.807101][ T254] addrconf_f6i_alloc+0x315/0x560 [ 2996.807101][ T254] ipv6_add_addr+0x411/0x2000 [ 2996.807101][ T254] inet6_addr_add+0x30e/0xa40 [ 2996.807101][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2996.807101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2996.807101][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.807101][ T254] netlink_unicast+0x449/0x710 [ 2996.807101][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.807101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.807101][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.807101][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.807101][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.807101][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2996.807101][ T254] [ 2996.809309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.809309][ T254] netdev_get_by_index+0x5e/0x80 [ 2996.809309][ T254] fib6_nh_init+0x3d8/0x1580 [ 2996.809309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 2996.809309][ T254] ip6_route_add+0x1c/0x140 [ 2996.809309][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 2996.809309][ T254] addrconf_add_dev+0xe2/0x170 [ 2996.809309][ T254] inet6_addr_add+0x12f/0xa40 [ 2996.809309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 2996.809309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2996.809309][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.809309][ T254] netlink_unicast+0x449/0x710 [ 2996.809309][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.809309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.809309][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.809309][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.809309][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.809309][ T254] [ 2996.811514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.811514][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 2996.811514][ T254] ipv6_find_idev+0x102/0x170 [ 2996.811514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2996.811514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2996.811514][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.811514][ T254] netlink_unicast+0x449/0x710 [ 2996.811514][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.811514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.811514][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.811514][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.811514][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.811514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2996.811514][ T254] [ 2996.813287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 2996.813287][ T254] neigh_parms_alloc+0x1e5/0x510 [ 2996.813287][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 2996.813287][ T254] ipv6_find_idev+0x102/0x170 [ 2996.813287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 2996.813287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 2996.813287][ T254] netlink_rcv_skb+0x130/0x360 [ 2996.813287][ T254] netlink_unicast+0x449/0x710 [ 2996.813287][ T254] netlink_sendmsg+0x723/0xbe0 [ 2996.813287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 2996.813287][ T254] ___sys_sendmsg+0xee/0x170 [ 2996.813287][ T254] __sys_sendmsg+0xcd/0x170 [ 2996.813287][ T254] do_syscall_64+0xc6/0x1e0 [ 2996.813287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 2996.813287][ T254] [ 3007.055924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3007.056749][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.056749][ T254] dst_init+0x84/0x4a0 [ 3007.056749][ T254] dst_alloc+0x97/0x150 [ 3007.056749][ T254] ip6_dst_alloc+0x23/0x90 [ 3007.056749][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3007.056749][ T254] ip6_pol_route+0x56f/0x840 [ 3007.056749][ T254] fib6_rule_lookup+0x334/0x630 [ 3007.056749][ T254] ip6_route_output_flags+0x259/0x480 [ 3007.056749][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3007.056749][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3007.056749][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.056749][ T254] netlink_unicast+0x449/0x710 [ 3007.056749][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.056749][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.056749][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.056749][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.056749][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.056749][ T254] [ 3007.058906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.058906][ T254] netdev_get_by_index+0x5e/0x80 [ 3007.058906][ T254] fib6_nh_init+0x3d8/0x1580 [ 3007.058906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3007.058906][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3007.058906][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3007.058906][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3007.058906][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3007.058906][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3007.058906][ T254] addrconf_dad_begin+0x310/0x670 [ 3007.058906][ T254] addrconf_dad_work+0x10b/0xab0 [ 3007.058906][ T254] process_one_work+0x84d/0x18a0 [ 3007.058906][ T254] worker_thread+0x587/0xd30 [ 3007.058906][ T254] kthread+0x28a/0x350 [ 3007.058906][ T254] ret_from_fork+0x31/0x70 [ 3007.058906][ T254] ret_from_fork_asm+0x1a/0x30 [ 3007.058906][ T254] [ 3007.061033][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.061033][ T254] netdev_get_by_index+0x5e/0x80 [ 3007.061033][ T254] fib6_nh_init+0x3d8/0x1580 [ 3007.061033][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3007.061033][ T254] ip6_route_add+0x1c/0x140 [ 3007.061033][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3007.061033][ T254] inet6_addr_add+0x4f8/0xa40 [ 3007.061033][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3007.061033][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3007.061033][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.061033][ T254] netlink_unicast+0x449/0x710 [ 3007.061033][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.061033][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.061033][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.061033][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.061033][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.061033][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3007.061033][ T254] [ 3007.063285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.063285][ T254] netdev_get_by_index+0x5e/0x80 [ 3007.063285][ T254] fib6_nh_init+0x3d8/0x1580 [ 3007.063285][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3007.063285][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3007.063285][ T254] ipv6_add_addr+0x411/0x2000 [ 3007.063285][ T254] inet6_addr_add+0x30e/0xa40 [ 3007.063285][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3007.063285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3007.063285][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.063285][ T254] netlink_unicast+0x449/0x710 [ 3007.063285][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.063285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.063285][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.063285][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.063285][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.063285][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3007.063285][ T254] [ 3007.065481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.065481][ T254] netdev_get_by_index+0x5e/0x80 [ 3007.065481][ T254] fib6_nh_init+0x3d8/0x1580 [ 3007.065481][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3007.065481][ T254] ip6_route_add+0x1c/0x140 [ 3007.065481][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3007.065481][ T254] addrconf_add_dev+0xe2/0x170 [ 3007.065481][ T254] inet6_addr_add+0x12f/0xa40 [ 3007.065481][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3007.065481][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3007.065481][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.065481][ T254] netlink_unicast+0x449/0x710 [ 3007.065481][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.065481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.065481][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.065481][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.065481][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.065481][ T254] [ 3007.067633][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.067633][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3007.067633][ T254] ipv6_find_idev+0x102/0x170 [ 3007.067633][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3007.067633][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3007.067633][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.067633][ T254] netlink_unicast+0x449/0x710 [ 3007.067633][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.067633][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.067633][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.067633][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.067633][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.067633][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3007.067633][ T254] [ 3007.069369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3007.069369][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3007.069369][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3007.069369][ T254] ipv6_find_idev+0x102/0x170 [ 3007.069369][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3007.069369][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3007.069369][ T254] netlink_rcv_skb+0x130/0x360 [ 3007.069369][ T254] netlink_unicast+0x449/0x710 [ 3007.069369][ T254] netlink_sendmsg+0x723/0xbe0 [ 3007.069369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3007.069369][ T254] ___sys_sendmsg+0xee/0x170 [ 3007.069369][ T254] __sys_sendmsg+0xcd/0x170 [ 3007.069369][ T254] do_syscall_64+0xc6/0x1e0 [ 3007.069369][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3007.069369][ T254] [ 3017.151949][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3017.152754][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.152754][ T254] dst_init+0x84/0x4a0 [ 3017.152754][ T254] dst_alloc+0x97/0x150 [ 3017.152754][ T254] ip6_dst_alloc+0x23/0x90 [ 3017.152754][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3017.152754][ T254] ip6_pol_route+0x56f/0x840 [ 3017.152754][ T254] fib6_rule_lookup+0x334/0x630 [ 3017.152754][ T254] ip6_route_output_flags+0x259/0x480 [ 3017.152754][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3017.152754][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3017.152754][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.152754][ T254] netlink_unicast+0x449/0x710 [ 3017.152754][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.152754][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.152754][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.152754][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.152754][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.152754][ T254] [ 3017.154981][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.154981][ T254] netdev_get_by_index+0x5e/0x80 [ 3017.154981][ T254] fib6_nh_init+0x3d8/0x1580 [ 3017.154981][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3017.154981][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3017.154981][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3017.154981][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3017.154981][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3017.154981][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3017.154981][ T254] addrconf_dad_begin+0x310/0x670 [ 3017.154981][ T254] addrconf_dad_work+0x10b/0xab0 [ 3017.154981][ T254] process_one_work+0x84d/0x18a0 [ 3017.154981][ T254] worker_thread+0x587/0xd30 [ 3017.154981][ T254] kthread+0x28a/0x350 [ 3017.154981][ T254] ret_from_fork+0x31/0x70 [ 3017.154981][ T254] ret_from_fork_asm+0x1a/0x30 [ 3017.154981][ T254] [ 3017.157157][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.157157][ T254] netdev_get_by_index+0x5e/0x80 [ 3017.157157][ T254] fib6_nh_init+0x3d8/0x1580 [ 3017.157157][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3017.157157][ T254] ip6_route_add+0x1c/0x140 [ 3017.157157][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3017.157157][ T254] inet6_addr_add+0x4f8/0xa40 [ 3017.157157][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3017.157157][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3017.157157][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.157157][ T254] netlink_unicast+0x449/0x710 [ 3017.157157][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.157157][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.157157][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.157157][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.157157][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.157157][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3017.157157][ T254] [ 3017.159429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.159429][ T254] netdev_get_by_index+0x5e/0x80 [ 3017.159429][ T254] fib6_nh_init+0x3d8/0x1580 [ 3017.159429][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3017.159429][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3017.159429][ T254] ipv6_add_addr+0x411/0x2000 [ 3017.159429][ T254] inet6_addr_add+0x30e/0xa40 [ 3017.159429][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3017.159429][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3017.159429][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.159429][ T254] netlink_unicast+0x449/0x710 [ 3017.159429][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.159429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.159429][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.159429][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.159429][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.159429][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3017.159429][ T254] [ 3017.161714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.161714][ T254] netdev_get_by_index+0x5e/0x80 [ 3017.161714][ T254] fib6_nh_init+0x3d8/0x1580 [ 3017.161714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3017.161714][ T254] ip6_route_add+0x1c/0x140 [ 3017.161714][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3017.161714][ T254] addrconf_add_dev+0xe2/0x170 [ 3017.161714][ T254] inet6_addr_add+0x12f/0xa40 [ 3017.161714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3017.161714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3017.161714][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.161714][ T254] netlink_unicast+0x449/0x710 [ 3017.161714][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.161714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.161714][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.161714][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.161714][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.161714][ T254] [ 3017.163924][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.163924][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3017.163924][ T254] ipv6_find_idev+0x102/0x170 [ 3017.163924][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3017.163924][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3017.163924][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.163924][ T254] netlink_unicast+0x449/0x710 [ 3017.163924][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.163924][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.163924][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.163924][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.163924][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.163924][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3017.163924][ T254] [ 3017.165654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3017.165654][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3017.165654][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3017.165654][ T254] ipv6_find_idev+0x102/0x170 [ 3017.165654][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3017.165654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3017.165654][ T254] netlink_rcv_skb+0x130/0x360 [ 3017.165654][ T254] netlink_unicast+0x449/0x710 [ 3017.165654][ T254] netlink_sendmsg+0x723/0xbe0 [ 3017.165654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3017.165654][ T254] ___sys_sendmsg+0xee/0x170 [ 3017.165654][ T254] __sys_sendmsg+0xcd/0x170 [ 3017.165654][ T254] do_syscall_64+0xc6/0x1e0 [ 3017.165654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3017.165654][ T254] [ 3027.407910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3027.408494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.408494][ T254] dst_init+0x84/0x4a0 [ 3027.408494][ T254] dst_alloc+0x97/0x150 [ 3027.408494][ T254] ip6_dst_alloc+0x23/0x90 [ 3027.408494][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3027.408494][ T254] ip6_pol_route+0x56f/0x840 [ 3027.408494][ T254] fib6_rule_lookup+0x334/0x630 [ 3027.408494][ T254] ip6_route_output_flags+0x259/0x480 [ 3027.408494][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3027.408494][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3027.408494][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.408494][ T254] netlink_unicast+0x449/0x710 [ 3027.408494][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.408494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.408494][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.408494][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.408494][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.408494][ T254] [ 3027.410657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.410657][ T254] netdev_get_by_index+0x5e/0x80 [ 3027.410657][ T254] fib6_nh_init+0x3d8/0x1580 [ 3027.410657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3027.410657][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3027.410657][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3027.410657][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3027.410657][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3027.410657][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3027.410657][ T254] addrconf_dad_begin+0x310/0x670 [ 3027.410657][ T254] addrconf_dad_work+0x10b/0xab0 [ 3027.410657][ T254] process_one_work+0x84d/0x18a0 [ 3027.410657][ T254] worker_thread+0x587/0xd30 [ 3027.410657][ T254] kthread+0x28a/0x350 [ 3027.410657][ T254] ret_from_fork+0x31/0x70 [ 3027.410657][ T254] ret_from_fork_asm+0x1a/0x30 [ 3027.410657][ T254] [ 3027.412855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.412855][ T254] netdev_get_by_index+0x5e/0x80 [ 3027.412855][ T254] fib6_nh_init+0x3d8/0x1580 [ 3027.412855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3027.412855][ T254] ip6_route_add+0x1c/0x140 [ 3027.412855][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3027.412855][ T254] inet6_addr_add+0x4f8/0xa40 [ 3027.412855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3027.412855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3027.412855][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.412855][ T254] netlink_unicast+0x449/0x710 [ 3027.412855][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.412855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.412855][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.412855][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.412855][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.412855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3027.412855][ T254] [ 3027.415072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.415072][ T254] netdev_get_by_index+0x5e/0x80 [ 3027.415072][ T254] fib6_nh_init+0x3d8/0x1580 [ 3027.415072][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3027.415072][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3027.415072][ T254] ipv6_add_addr+0x411/0x2000 [ 3027.415072][ T254] inet6_addr_add+0x30e/0xa40 [ 3027.415072][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3027.415072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3027.415072][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.415072][ T254] netlink_unicast+0x449/0x710 [ 3027.415072][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.415072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.415072][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.415072][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.415072][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.415072][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3027.415072][ T254] [ 3027.417254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.417254][ T254] netdev_get_by_index+0x5e/0x80 [ 3027.417254][ T254] fib6_nh_init+0x3d8/0x1580 [ 3027.417254][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3027.417254][ T254] ip6_route_add+0x1c/0x140 [ 3027.417254][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3027.417254][ T254] addrconf_add_dev+0xe2/0x170 [ 3027.417254][ T254] inet6_addr_add+0x12f/0xa40 [ 3027.417254][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3027.417254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3027.417254][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.417254][ T254] netlink_unicast+0x449/0x710 [ 3027.417254][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.417254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.417254][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.417254][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.417254][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.417254][ T254] [ 3027.419472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.419472][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3027.419472][ T254] ipv6_find_idev+0x102/0x170 [ 3027.419472][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3027.419472][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3027.419472][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.419472][ T254] netlink_unicast+0x449/0x710 [ 3027.419472][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.419472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.419472][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.419472][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.419472][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.419472][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3027.419472][ T254] [ 3027.421155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3027.421155][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3027.421155][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3027.421155][ T254] ipv6_find_idev+0x102/0x170 [ 3027.421155][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3027.421155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3027.421155][ T254] netlink_rcv_skb+0x130/0x360 [ 3027.421155][ T254] netlink_unicast+0x449/0x710 [ 3027.421155][ T254] netlink_sendmsg+0x723/0xbe0 [ 3027.421155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3027.421155][ T254] ___sys_sendmsg+0xee/0x170 [ 3027.421155][ T254] __sys_sendmsg+0xcd/0x170 [ 3027.421155][ T254] do_syscall_64+0xc6/0x1e0 [ 3027.421155][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3027.421155][ T254] [ 3037.663938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3037.664761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.664761][ T254] dst_init+0x84/0x4a0 [ 3037.664761][ T254] dst_alloc+0x97/0x150 [ 3037.664761][ T254] ip6_dst_alloc+0x23/0x90 [ 3037.664761][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3037.664761][ T254] ip6_pol_route+0x56f/0x840 [ 3037.664761][ T254] fib6_rule_lookup+0x334/0x630 [ 3037.664761][ T254] ip6_route_output_flags+0x259/0x480 [ 3037.664761][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3037.664761][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3037.664761][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.664761][ T254] netlink_unicast+0x449/0x710 [ 3037.664761][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.664761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.664761][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.664761][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.664761][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.664761][ T254] [ 3037.666940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.666940][ T254] netdev_get_by_index+0x5e/0x80 [ 3037.666940][ T254] fib6_nh_init+0x3d8/0x1580 [ 3037.666940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3037.666940][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3037.666940][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3037.666940][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3037.666940][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3037.666940][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3037.666940][ T254] addrconf_dad_begin+0x310/0x670 [ 3037.666940][ T254] addrconf_dad_work+0x10b/0xab0 [ 3037.666940][ T254] process_one_work+0x84d/0x18a0 [ 3037.666940][ T254] worker_thread+0x587/0xd30 [ 3037.666940][ T254] kthread+0x28a/0x350 [ 3037.666940][ T254] ret_from_fork+0x31/0x70 [ 3037.666940][ T254] ret_from_fork_asm+0x1a/0x30 [ 3037.666940][ T254] [ 3037.669028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.669028][ T254] netdev_get_by_index+0x5e/0x80 [ 3037.669028][ T254] fib6_nh_init+0x3d8/0x1580 [ 3037.669028][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3037.669028][ T254] ip6_route_add+0x1c/0x140 [ 3037.669028][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3037.669028][ T254] inet6_addr_add+0x4f8/0xa40 [ 3037.669028][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3037.669028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3037.669028][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.669028][ T254] netlink_unicast+0x449/0x710 [ 3037.669028][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.669028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.669028][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.669028][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.669028][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.669028][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3037.669028][ T254] [ 3037.671312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.671312][ T254] netdev_get_by_index+0x5e/0x80 [ 3037.671312][ T254] fib6_nh_init+0x3d8/0x1580 [ 3037.671312][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3037.671312][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3037.671312][ T254] ipv6_add_addr+0x411/0x2000 [ 3037.671312][ T254] inet6_addr_add+0x30e/0xa40 [ 3037.671312][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3037.671312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3037.671312][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.671312][ T254] netlink_unicast+0x449/0x710 [ 3037.671312][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.671312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.671312][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.671312][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.671312][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.671312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3037.671312][ T254] [ 3037.673620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.673620][ T254] netdev_get_by_index+0x5e/0x80 [ 3037.673620][ T254] fib6_nh_init+0x3d8/0x1580 [ 3037.673620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3037.673620][ T254] ip6_route_add+0x1c/0x140 [ 3037.673620][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3037.673620][ T254] addrconf_add_dev+0xe2/0x170 [ 3037.673620][ T254] inet6_addr_add+0x12f/0xa40 [ 3037.673620][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3037.673620][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3037.673620][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.673620][ T254] netlink_unicast+0x449/0x710 [ 3037.673620][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.673620][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.673620][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.673620][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.673620][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.673620][ T254] [ 3037.676403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.676403][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3037.676403][ T254] ipv6_find_idev+0x102/0x170 [ 3037.676403][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3037.676403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3037.676403][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.676403][ T254] netlink_unicast+0x449/0x710 [ 3037.676403][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.676403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.676403][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.676403][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.676403][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.676403][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3037.676403][ T254] [ 3037.678136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3037.678136][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3037.678136][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3037.678136][ T254] ipv6_find_idev+0x102/0x170 [ 3037.678136][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3037.678136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3037.678136][ T254] netlink_rcv_skb+0x130/0x360 [ 3037.678136][ T254] netlink_unicast+0x449/0x710 [ 3037.678136][ T254] netlink_sendmsg+0x723/0xbe0 [ 3037.678136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3037.678136][ T254] ___sys_sendmsg+0xee/0x170 [ 3037.678136][ T254] __sys_sendmsg+0xcd/0x170 [ 3037.678136][ T254] do_syscall_64+0xc6/0x1e0 [ 3037.678136][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3037.678136][ T254] [ 3047.919936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3047.920752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.920752][ T254] dst_init+0x84/0x4a0 [ 3047.920752][ T254] dst_alloc+0x97/0x150 [ 3047.920752][ T254] ip6_dst_alloc+0x23/0x90 [ 3047.920752][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3047.920752][ T254] ip6_pol_route+0x56f/0x840 [ 3047.920752][ T254] fib6_rule_lookup+0x334/0x630 [ 3047.920752][ T254] ip6_route_output_flags+0x259/0x480 [ 3047.920752][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3047.920752][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3047.920752][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.920752][ T254] netlink_unicast+0x449/0x710 [ 3047.920752][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.920752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.920752][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.920752][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.920752][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.920752][ T254] [ 3047.922953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.922953][ T254] netdev_get_by_index+0x5e/0x80 [ 3047.922953][ T254] fib6_nh_init+0x3d8/0x1580 [ 3047.922953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3047.922953][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3047.922953][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3047.922953][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3047.922953][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3047.922953][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3047.922953][ T254] addrconf_dad_begin+0x310/0x670 [ 3047.922953][ T254] addrconf_dad_work+0x10b/0xab0 [ 3047.922953][ T254] process_one_work+0x84d/0x18a0 [ 3047.922953][ T254] worker_thread+0x587/0xd30 [ 3047.922953][ T254] kthread+0x28a/0x350 [ 3047.922953][ T254] ret_from_fork+0x31/0x70 [ 3047.922953][ T254] ret_from_fork_asm+0x1a/0x30 [ 3047.922953][ T254] [ 3047.925096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.925096][ T254] netdev_get_by_index+0x5e/0x80 [ 3047.925096][ T254] fib6_nh_init+0x3d8/0x1580 [ 3047.925096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3047.925096][ T254] ip6_route_add+0x1c/0x140 [ 3047.925096][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3047.925096][ T254] inet6_addr_add+0x4f8/0xa40 [ 3047.925096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3047.925096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3047.925096][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.925096][ T254] netlink_unicast+0x449/0x710 [ 3047.925096][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.925096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.925096][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.925096][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.925096][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.925096][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3047.925096][ T254] [ 3047.927338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.927338][ T254] netdev_get_by_index+0x5e/0x80 [ 3047.927338][ T254] fib6_nh_init+0x3d8/0x1580 [ 3047.927338][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3047.927338][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3047.927338][ T254] ipv6_add_addr+0x411/0x2000 [ 3047.927338][ T254] inet6_addr_add+0x30e/0xa40 [ 3047.927338][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3047.927338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3047.927338][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.927338][ T254] netlink_unicast+0x449/0x710 [ 3047.927338][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.927338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.927338][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.927338][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.927338][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.927338][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3047.927338][ T254] [ 3047.929571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.929571][ T254] netdev_get_by_index+0x5e/0x80 [ 3047.929571][ T254] fib6_nh_init+0x3d8/0x1580 [ 3047.929571][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3047.929571][ T254] ip6_route_add+0x1c/0x140 [ 3047.929571][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3047.929571][ T254] addrconf_add_dev+0xe2/0x170 [ 3047.929571][ T254] inet6_addr_add+0x12f/0xa40 [ 3047.929571][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3047.929571][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3047.929571][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.929571][ T254] netlink_unicast+0x449/0x710 [ 3047.929571][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.929571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.929571][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.929571][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.929571][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.929571][ T254] [ 3047.931786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.931786][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3047.931786][ T254] ipv6_find_idev+0x102/0x170 [ 3047.931786][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3047.931786][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3047.931786][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.931786][ T254] netlink_unicast+0x449/0x710 [ 3047.931786][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.931786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.931786][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.931786][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.931786][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.931786][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3047.931786][ T254] [ 3047.933516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3047.933516][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3047.933516][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3047.933516][ T254] ipv6_find_idev+0x102/0x170 [ 3047.933516][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3047.933516][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3047.933516][ T254] netlink_rcv_skb+0x130/0x360 [ 3047.933516][ T254] netlink_unicast+0x449/0x710 [ 3047.933516][ T254] netlink_sendmsg+0x723/0xbe0 [ 3047.933516][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3047.933516][ T254] ___sys_sendmsg+0xee/0x170 [ 3047.933516][ T254] __sys_sendmsg+0xcd/0x170 [ 3047.933516][ T254] do_syscall_64+0xc6/0x1e0 [ 3047.933516][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3047.933516][ T254] [ 3058.175943][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3058.176665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.176665][ T254] dst_init+0x84/0x4a0 [ 3058.176665][ T254] dst_alloc+0x97/0x150 [ 3058.176665][ T254] ip6_dst_alloc+0x23/0x90 [ 3058.176665][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3058.176665][ T254] ip6_pol_route+0x56f/0x840 [ 3058.176665][ T254] fib6_rule_lookup+0x334/0x630 [ 3058.176665][ T254] ip6_route_output_flags+0x259/0x480 [ 3058.176665][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3058.176665][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3058.176665][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.176665][ T254] netlink_unicast+0x449/0x710 [ 3058.176665][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.176665][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.176665][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.176665][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.176665][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.176665][ T254] [ 3058.178825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.178825][ T254] netdev_get_by_index+0x5e/0x80 [ 3058.178825][ T254] fib6_nh_init+0x3d8/0x1580 [ 3058.178825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3058.178825][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3058.178825][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3058.178825][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3058.178825][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3058.178825][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3058.178825][ T254] addrconf_dad_begin+0x310/0x670 [ 3058.178825][ T254] addrconf_dad_work+0x10b/0xab0 [ 3058.178825][ T254] process_one_work+0x84d/0x18a0 [ 3058.178825][ T254] worker_thread+0x587/0xd30 [ 3058.178825][ T254] kthread+0x28a/0x350 [ 3058.178825][ T254] ret_from_fork+0x31/0x70 [ 3058.178825][ T254] ret_from_fork_asm+0x1a/0x30 [ 3058.178825][ T254] [ 3058.180965][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.180965][ T254] netdev_get_by_index+0x5e/0x80 [ 3058.180965][ T254] fib6_nh_init+0x3d8/0x1580 [ 3058.180965][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3058.180965][ T254] ip6_route_add+0x1c/0x140 [ 3058.180965][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3058.180965][ T254] inet6_addr_add+0x4f8/0xa40 [ 3058.180965][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3058.180965][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3058.180965][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.180965][ T254] netlink_unicast+0x449/0x710 [ 3058.180965][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.180965][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.180965][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.180965][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.180965][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.180965][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3058.180965][ T254] [ 3058.183193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.183193][ T254] netdev_get_by_index+0x5e/0x80 [ 3058.183193][ T254] fib6_nh_init+0x3d8/0x1580 [ 3058.183193][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3058.183193][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3058.183193][ T254] ipv6_add_addr+0x411/0x2000 [ 3058.183193][ T254] inet6_addr_add+0x30e/0xa40 [ 3058.183193][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3058.183193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3058.183193][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.183193][ T254] netlink_unicast+0x449/0x710 [ 3058.183193][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.183193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.183193][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.183193][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.183193][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.183193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3058.183193][ T254] [ 3058.185428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.185428][ T254] netdev_get_by_index+0x5e/0x80 [ 3058.185428][ T254] fib6_nh_init+0x3d8/0x1580 [ 3058.185428][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3058.185428][ T254] ip6_route_add+0x1c/0x140 [ 3058.185428][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3058.185428][ T254] addrconf_add_dev+0xe2/0x170 [ 3058.185428][ T254] inet6_addr_add+0x12f/0xa40 [ 3058.185428][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3058.185428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3058.185428][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.185428][ T254] netlink_unicast+0x449/0x710 [ 3058.185428][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.185428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.185428][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.185428][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.185428][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.185428][ T254] [ 3058.187589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.187589][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3058.187589][ T254] ipv6_find_idev+0x102/0x170 [ 3058.187589][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3058.187589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3058.187589][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.187589][ T254] netlink_unicast+0x449/0x710 [ 3058.187589][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.187589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.187589][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.187589][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.187589][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.187589][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3058.187589][ T254] [ 3058.189346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3058.189346][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3058.189346][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3058.189346][ T254] ipv6_find_idev+0x102/0x170 [ 3058.189346][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3058.189346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3058.189346][ T254] netlink_rcv_skb+0x130/0x360 [ 3058.189346][ T254] netlink_unicast+0x449/0x710 [ 3058.189346][ T254] netlink_sendmsg+0x723/0xbe0 [ 3058.189346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3058.189346][ T254] ___sys_sendmsg+0xee/0x170 [ 3058.189346][ T254] __sys_sendmsg+0xcd/0x170 [ 3058.189346][ T254] do_syscall_64+0xc6/0x1e0 [ 3058.189346][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3058.189346][ T254] [ 3068.303919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3068.304528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.304528][ T254] dst_init+0x84/0x4a0 [ 3068.304528][ T254] dst_alloc+0x97/0x150 [ 3068.304528][ T254] ip6_dst_alloc+0x23/0x90 [ 3068.304528][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3068.304528][ T254] ip6_pol_route+0x56f/0x840 [ 3068.304528][ T254] fib6_rule_lookup+0x334/0x630 [ 3068.304528][ T254] ip6_route_output_flags+0x259/0x480 [ 3068.304528][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3068.304528][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3068.304528][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.304528][ T254] netlink_unicast+0x449/0x710 [ 3068.304528][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.304528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.304528][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.304528][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.304528][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.304528][ T254] [ 3068.306739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.306739][ T254] netdev_get_by_index+0x5e/0x80 [ 3068.306739][ T254] fib6_nh_init+0x3d8/0x1580 [ 3068.306739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3068.306739][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3068.306739][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3068.306739][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3068.306739][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3068.306739][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3068.306739][ T254] addrconf_dad_begin+0x310/0x670 [ 3068.306739][ T254] addrconf_dad_work+0x10b/0xab0 [ 3068.306739][ T254] process_one_work+0x84d/0x18a0 [ 3068.306739][ T254] worker_thread+0x587/0xd30 [ 3068.306739][ T254] kthread+0x28a/0x350 [ 3068.306739][ T254] ret_from_fork+0x31/0x70 [ 3068.306739][ T254] ret_from_fork_asm+0x1a/0x30 [ 3068.306739][ T254] [ 3068.308900][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.308900][ T254] netdev_get_by_index+0x5e/0x80 [ 3068.308900][ T254] fib6_nh_init+0x3d8/0x1580 [ 3068.308900][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3068.308900][ T254] ip6_route_add+0x1c/0x140 [ 3068.308900][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3068.308900][ T254] inet6_addr_add+0x4f8/0xa40 [ 3068.308900][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3068.308900][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3068.308900][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.308900][ T254] netlink_unicast+0x449/0x710 [ 3068.308900][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.308900][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.308900][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.308900][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.308900][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.308900][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3068.308900][ T254] [ 3068.311133][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.311133][ T254] netdev_get_by_index+0x5e/0x80 [ 3068.311133][ T254] fib6_nh_init+0x3d8/0x1580 [ 3068.311133][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3068.311133][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3068.311133][ T254] ipv6_add_addr+0x411/0x2000 [ 3068.311133][ T254] inet6_addr_add+0x30e/0xa40 [ 3068.311133][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3068.311133][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3068.311133][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.311133][ T254] netlink_unicast+0x449/0x710 [ 3068.311133][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.311133][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.311133][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.311133][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.311133][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.311133][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3068.311133][ T254] [ 3068.313333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.313333][ T254] netdev_get_by_index+0x5e/0x80 [ 3068.313333][ T254] fib6_nh_init+0x3d8/0x1580 [ 3068.313333][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3068.313333][ T254] ip6_route_add+0x1c/0x140 [ 3068.313333][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3068.313333][ T254] addrconf_add_dev+0xe2/0x170 [ 3068.313333][ T254] inet6_addr_add+0x12f/0xa40 [ 3068.313333][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3068.313333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3068.313333][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.313333][ T254] netlink_unicast+0x449/0x710 [ 3068.313333][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.313333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.313333][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.313333][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.313333][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.313333][ T254] [ 3068.316567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.316567][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3068.316567][ T254] ipv6_find_idev+0x102/0x170 [ 3068.316567][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3068.316567][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3068.316567][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.316567][ T254] netlink_unicast+0x449/0x710 [ 3068.316567][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.316567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.316567][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.316567][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.316567][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.316567][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3068.316567][ T254] [ 3068.318309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3068.318309][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3068.318309][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3068.318309][ T254] ipv6_find_idev+0x102/0x170 [ 3068.318309][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3068.318309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3068.318309][ T254] netlink_rcv_skb+0x130/0x360 [ 3068.318309][ T254] netlink_unicast+0x449/0x710 [ 3068.318309][ T254] netlink_sendmsg+0x723/0xbe0 [ 3068.318309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3068.318309][ T254] ___sys_sendmsg+0xee/0x170 [ 3068.318309][ T254] __sys_sendmsg+0xcd/0x170 [ 3068.318309][ T254] do_syscall_64+0xc6/0x1e0 [ 3068.318309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3068.318309][ T254] [ 3078.567922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3078.568529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.568529][ T254] dst_init+0x84/0x4a0 [ 3078.568529][ T254] dst_alloc+0x97/0x150 [ 3078.568529][ T254] ip6_dst_alloc+0x23/0x90 [ 3078.568529][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3078.568529][ T254] ip6_pol_route+0x56f/0x840 [ 3078.568529][ T254] fib6_rule_lookup+0x334/0x630 [ 3078.568529][ T254] ip6_route_output_flags+0x259/0x480 [ 3078.568529][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3078.568529][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3078.568529][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.568529][ T254] netlink_unicast+0x449/0x710 [ 3078.568529][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.568529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.568529][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.568529][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.568529][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.568529][ T254] [ 3078.570686][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.570686][ T254] netdev_get_by_index+0x5e/0x80 [ 3078.570686][ T254] fib6_nh_init+0x3d8/0x1580 [ 3078.570686][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3078.570686][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3078.570686][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3078.570686][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3078.570686][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3078.570686][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3078.570686][ T254] addrconf_dad_begin+0x310/0x670 [ 3078.570686][ T254] addrconf_dad_work+0x10b/0xab0 [ 3078.570686][ T254] process_one_work+0x84d/0x18a0 [ 3078.570686][ T254] worker_thread+0x587/0xd30 [ 3078.570686][ T254] kthread+0x28a/0x350 [ 3078.570686][ T254] ret_from_fork+0x31/0x70 [ 3078.570686][ T254] ret_from_fork_asm+0x1a/0x30 [ 3078.570686][ T254] [ 3078.573396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.573396][ T254] netdev_get_by_index+0x5e/0x80 [ 3078.573396][ T254] fib6_nh_init+0x3d8/0x1580 [ 3078.573396][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3078.573396][ T254] ip6_route_add+0x1c/0x140 [ 3078.573396][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3078.573396][ T254] inet6_addr_add+0x4f8/0xa40 [ 3078.573396][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3078.573396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3078.573396][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.573396][ T254] netlink_unicast+0x449/0x710 [ 3078.573396][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.573396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.573396][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.573396][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.573396][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.573396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3078.573396][ T254] [ 3078.575609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.575609][ T254] netdev_get_by_index+0x5e/0x80 [ 3078.575609][ T254] fib6_nh_init+0x3d8/0x1580 [ 3078.575609][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3078.575609][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3078.575609][ T254] ipv6_add_addr+0x411/0x2000 [ 3078.575609][ T254] inet6_addr_add+0x30e/0xa40 [ 3078.575609][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3078.575609][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3078.575609][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.575609][ T254] netlink_unicast+0x449/0x710 [ 3078.575609][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.575609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.575609][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.575609][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.575609][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.575609][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3078.575609][ T254] [ 3078.577855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.577855][ T254] netdev_get_by_index+0x5e/0x80 [ 3078.577855][ T254] fib6_nh_init+0x3d8/0x1580 [ 3078.577855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3078.577855][ T254] ip6_route_add+0x1c/0x140 [ 3078.577855][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3078.577855][ T254] addrconf_add_dev+0xe2/0x170 [ 3078.577855][ T254] inet6_addr_add+0x12f/0xa40 [ 3078.577855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3078.577855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3078.577855][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.577855][ T254] netlink_unicast+0x449/0x710 [ 3078.577855][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.577855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.577855][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.577855][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.577855][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.577855][ T254] [ 3078.580460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.580460][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3078.580460][ T254] ipv6_find_idev+0x102/0x170 [ 3078.580460][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3078.580460][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3078.580460][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.580460][ T254] netlink_unicast+0x449/0x710 [ 3078.580460][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.580460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.580460][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.580460][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.580460][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.580460][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3078.580460][ T254] [ 3078.582224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3078.582224][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3078.582224][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3078.582224][ T254] ipv6_find_idev+0x102/0x170 [ 3078.582224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3078.582224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3078.582224][ T254] netlink_rcv_skb+0x130/0x360 [ 3078.582224][ T254] netlink_unicast+0x449/0x710 [ 3078.582224][ T254] netlink_sendmsg+0x723/0xbe0 [ 3078.582224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3078.582224][ T254] ___sys_sendmsg+0xee/0x170 [ 3078.582224][ T254] __sys_sendmsg+0xcd/0x170 [ 3078.582224][ T254] do_syscall_64+0xc6/0x1e0 [ 3078.582224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3078.582224][ T254] [ 3088.783928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3088.784518][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.784518][ T254] dst_init+0x84/0x4a0 [ 3088.784518][ T254] dst_alloc+0x97/0x150 [ 3088.784518][ T254] ip6_dst_alloc+0x23/0x90 [ 3088.784518][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3088.784518][ T254] ip6_pol_route+0x56f/0x840 [ 3088.784518][ T254] fib6_rule_lookup+0x334/0x630 [ 3088.784518][ T254] ip6_route_output_flags+0x259/0x480 [ 3088.784518][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3088.784518][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3088.784518][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.784518][ T254] netlink_unicast+0x449/0x710 [ 3088.784518][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.784518][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.784518][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.784518][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.784518][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.784518][ T254] [ 3088.786726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.786726][ T254] netdev_get_by_index+0x5e/0x80 [ 3088.786726][ T254] fib6_nh_init+0x3d8/0x1580 [ 3088.786726][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3088.786726][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3088.786726][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3088.786726][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3088.786726][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3088.786726][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3088.786726][ T254] addrconf_dad_begin+0x310/0x670 [ 3088.786726][ T254] addrconf_dad_work+0x10b/0xab0 [ 3088.786726][ T254] process_one_work+0x84d/0x18a0 [ 3088.786726][ T254] worker_thread+0x587/0xd30 [ 3088.786726][ T254] kthread+0x28a/0x350 [ 3088.786726][ T254] ret_from_fork+0x31/0x70 [ 3088.786726][ T254] ret_from_fork_asm+0x1a/0x30 [ 3088.786726][ T254] [ 3088.788879][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.788879][ T254] netdev_get_by_index+0x5e/0x80 [ 3088.788879][ T254] fib6_nh_init+0x3d8/0x1580 [ 3088.788879][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3088.788879][ T254] ip6_route_add+0x1c/0x140 [ 3088.788879][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3088.788879][ T254] inet6_addr_add+0x4f8/0xa40 [ 3088.788879][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3088.788879][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3088.788879][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.788879][ T254] netlink_unicast+0x449/0x710 [ 3088.788879][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.788879][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.788879][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.788879][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.788879][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.788879][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3088.788879][ T254] [ 3088.791092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.791092][ T254] netdev_get_by_index+0x5e/0x80 [ 3088.791092][ T254] fib6_nh_init+0x3d8/0x1580 [ 3088.791092][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3088.791092][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3088.791092][ T254] ipv6_add_addr+0x411/0x2000 [ 3088.791092][ T254] inet6_addr_add+0x30e/0xa40 [ 3088.791092][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3088.791092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3088.791092][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.791092][ T254] netlink_unicast+0x449/0x710 [ 3088.791092][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.791092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.791092][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.791092][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.791092][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.791092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3088.791092][ T254] [ 3088.793387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.793387][ T254] netdev_get_by_index+0x5e/0x80 [ 3088.793387][ T254] fib6_nh_init+0x3d8/0x1580 [ 3088.793387][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3088.793387][ T254] ip6_route_add+0x1c/0x140 [ 3088.793387][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3088.793387][ T254] addrconf_add_dev+0xe2/0x170 [ 3088.793387][ T254] inet6_addr_add+0x12f/0xa40 [ 3088.793387][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3088.793387][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3088.793387][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.793387][ T254] netlink_unicast+0x449/0x710 [ 3088.793387][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.793387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.793387][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.793387][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.793387][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.793387][ T254] [ 3088.795596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.795596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3088.795596][ T254] ipv6_find_idev+0x102/0x170 [ 3088.795596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3088.795596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3088.795596][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.795596][ T254] netlink_unicast+0x449/0x710 [ 3088.795596][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.795596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.795596][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.795596][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.795596][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.795596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3088.795596][ T254] [ 3088.797314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3088.797314][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3088.797314][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3088.797314][ T254] ipv6_find_idev+0x102/0x170 [ 3088.797314][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3088.797314][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3088.797314][ T254] netlink_rcv_skb+0x130/0x360 [ 3088.797314][ T254] netlink_unicast+0x449/0x710 [ 3088.797314][ T254] netlink_sendmsg+0x723/0xbe0 [ 3088.797314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3088.797314][ T254] ___sys_sendmsg+0xee/0x170 [ 3088.797314][ T254] __sys_sendmsg+0xcd/0x170 [ 3088.797314][ T254] do_syscall_64+0xc6/0x1e0 [ 3088.797314][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3088.797314][ T254] [ 3098.863922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3098.864513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.864513][ T254] dst_init+0x84/0x4a0 [ 3098.864513][ T254] dst_alloc+0x97/0x150 [ 3098.864513][ T254] ip6_dst_alloc+0x23/0x90 [ 3098.864513][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3098.864513][ T254] ip6_pol_route+0x56f/0x840 [ 3098.864513][ T254] fib6_rule_lookup+0x334/0x630 [ 3098.864513][ T254] ip6_route_output_flags+0x259/0x480 [ 3098.864513][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3098.864513][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3098.864513][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.864513][ T254] netlink_unicast+0x449/0x710 [ 3098.864513][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.864513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.864513][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.864513][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.864513][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.864513][ T254] [ 3098.866697][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.866697][ T254] netdev_get_by_index+0x5e/0x80 [ 3098.866697][ T254] fib6_nh_init+0x3d8/0x1580 [ 3098.866697][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3098.866697][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3098.866697][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3098.866697][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3098.866697][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3098.866697][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3098.866697][ T254] addrconf_dad_begin+0x310/0x670 [ 3098.866697][ T254] addrconf_dad_work+0x10b/0xab0 [ 3098.866697][ T254] process_one_work+0x84d/0x18a0 [ 3098.866697][ T254] worker_thread+0x587/0xd30 [ 3098.866697][ T254] kthread+0x28a/0x350 [ 3098.866697][ T254] ret_from_fork+0x31/0x70 [ 3098.866697][ T254] ret_from_fork_asm+0x1a/0x30 [ 3098.866697][ T254] [ 3098.868838][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.868838][ T254] netdev_get_by_index+0x5e/0x80 [ 3098.868838][ T254] fib6_nh_init+0x3d8/0x1580 [ 3098.868838][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3098.868838][ T254] ip6_route_add+0x1c/0x140 [ 3098.868838][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3098.868838][ T254] inet6_addr_add+0x4f8/0xa40 [ 3098.868838][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3098.868838][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3098.868838][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.868838][ T254] netlink_unicast+0x449/0x710 [ 3098.868838][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.868838][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.868838][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.868838][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.868838][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.868838][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3098.868838][ T254] [ 3098.871065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.871065][ T254] netdev_get_by_index+0x5e/0x80 [ 3098.871065][ T254] fib6_nh_init+0x3d8/0x1580 [ 3098.871065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3098.871065][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3098.871065][ T254] ipv6_add_addr+0x411/0x2000 [ 3098.871065][ T254] inet6_addr_add+0x30e/0xa40 [ 3098.871065][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3098.871065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3098.871065][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.871065][ T254] netlink_unicast+0x449/0x710 [ 3098.871065][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.871065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.871065][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.871065][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.871065][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.871065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3098.871065][ T254] [ 3098.874082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.874082][ T254] netdev_get_by_index+0x5e/0x80 [ 3098.874082][ T254] fib6_nh_init+0x3d8/0x1580 [ 3098.874082][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3098.874082][ T254] ip6_route_add+0x1c/0x140 [ 3098.874082][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3098.874082][ T254] addrconf_add_dev+0xe2/0x170 [ 3098.874082][ T254] inet6_addr_add+0x12f/0xa40 [ 3098.874082][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3098.874082][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3098.874082][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.874082][ T254] netlink_unicast+0x449/0x710 [ 3098.874082][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.874082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.874082][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.874082][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.874082][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.874082][ T254] [ 3098.876229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.876229][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3098.876229][ T254] ipv6_find_idev+0x102/0x170 [ 3098.876229][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3098.876229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3098.876229][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.876229][ T254] netlink_unicast+0x449/0x710 [ 3098.876229][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.876229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.876229][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.876229][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.876229][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.876229][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3098.876229][ T254] [ 3098.877967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3098.877967][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3098.877967][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3098.877967][ T254] ipv6_find_idev+0x102/0x170 [ 3098.877967][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3098.877967][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3098.877967][ T254] netlink_rcv_skb+0x130/0x360 [ 3098.877967][ T254] netlink_unicast+0x449/0x710 [ 3098.877967][ T254] netlink_sendmsg+0x723/0xbe0 [ 3098.877967][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3098.877967][ T254] ___sys_sendmsg+0xee/0x170 [ 3098.877967][ T254] __sys_sendmsg+0xcd/0x170 [ 3098.877967][ T254] do_syscall_64+0xc6/0x1e0 [ 3098.877967][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3098.877967][ T254] [ 3109.119914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3109.120665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.120665][ T254] dst_init+0x84/0x4a0 [ 3109.120665][ T254] dst_alloc+0x97/0x150 [ 3109.120665][ T254] ip6_dst_alloc+0x23/0x90 [ 3109.120665][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3109.120665][ T254] ip6_pol_route+0x56f/0x840 [ 3109.120665][ T254] fib6_rule_lookup+0x334/0x630 [ 3109.120665][ T254] ip6_route_output_flags+0x259/0x480 [ 3109.120665][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3109.120665][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3109.120665][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.120665][ T254] netlink_unicast+0x449/0x710 [ 3109.120665][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.120665][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.120665][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.120665][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.120665][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.120665][ T254] [ 3109.122879][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.122879][ T254] netdev_get_by_index+0x5e/0x80 [ 3109.122879][ T254] fib6_nh_init+0x3d8/0x1580 [ 3109.122879][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3109.122879][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3109.122879][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3109.122879][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3109.122879][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3109.122879][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3109.122879][ T254] addrconf_dad_begin+0x310/0x670 [ 3109.122879][ T254] addrconf_dad_work+0x10b/0xab0 [ 3109.122879][ T254] process_one_work+0x84d/0x18a0 [ 3109.122879][ T254] worker_thread+0x587/0xd30 [ 3109.122879][ T254] kthread+0x28a/0x350 [ 3109.122879][ T254] ret_from_fork+0x31/0x70 [ 3109.122879][ T254] ret_from_fork_asm+0x1a/0x30 [ 3109.122879][ T254] [ 3109.125000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.125000][ T254] netdev_get_by_index+0x5e/0x80 [ 3109.125000][ T254] fib6_nh_init+0x3d8/0x1580 [ 3109.125000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3109.125000][ T254] ip6_route_add+0x1c/0x140 [ 3109.125000][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3109.125000][ T254] inet6_addr_add+0x4f8/0xa40 [ 3109.125000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3109.125000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3109.125000][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.125000][ T254] netlink_unicast+0x449/0x710 [ 3109.125000][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.125000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.125000][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.125000][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.125000][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.125000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3109.125000][ T254] [ 3109.127266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.127266][ T254] netdev_get_by_index+0x5e/0x80 [ 3109.127266][ T254] fib6_nh_init+0x3d8/0x1580 [ 3109.127266][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3109.127266][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3109.127266][ T254] ipv6_add_addr+0x411/0x2000 [ 3109.127266][ T254] inet6_addr_add+0x30e/0xa40 [ 3109.127266][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3109.127266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3109.127266][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.127266][ T254] netlink_unicast+0x449/0x710 [ 3109.127266][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.127266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.127266][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.127266][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.127266][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.127266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3109.127266][ T254] [ 3109.129570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.129570][ T254] netdev_get_by_index+0x5e/0x80 [ 3109.129570][ T254] fib6_nh_init+0x3d8/0x1580 [ 3109.129570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3109.129570][ T254] ip6_route_add+0x1c/0x140 [ 3109.129570][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3109.129570][ T254] addrconf_add_dev+0xe2/0x170 [ 3109.129570][ T254] inet6_addr_add+0x12f/0xa40 [ 3109.129570][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3109.129570][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3109.129570][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.129570][ T254] netlink_unicast+0x449/0x710 [ 3109.129570][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.129570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.129570][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.129570][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.129570][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.129570][ T254] [ 3109.131796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.131796][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3109.131796][ T254] ipv6_find_idev+0x102/0x170 [ 3109.131796][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3109.131796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3109.131796][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.131796][ T254] netlink_unicast+0x449/0x710 [ 3109.131796][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.131796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.131796][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.131796][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.131796][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.131796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3109.131796][ T254] [ 3109.133547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3109.133547][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3109.133547][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3109.133547][ T254] ipv6_find_idev+0x102/0x170 [ 3109.133547][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3109.133547][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3109.133547][ T254] netlink_rcv_skb+0x130/0x360 [ 3109.133547][ T254] netlink_unicast+0x449/0x710 [ 3109.133547][ T254] netlink_sendmsg+0x723/0xbe0 [ 3109.133547][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3109.133547][ T254] ___sys_sendmsg+0xee/0x170 [ 3109.133547][ T254] __sys_sendmsg+0xcd/0x170 [ 3109.133547][ T254] do_syscall_64+0xc6/0x1e0 [ 3109.133547][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3109.133547][ T254] [ 3119.375916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3119.376723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.376723][ T254] dst_init+0x84/0x4a0 [ 3119.376723][ T254] dst_alloc+0x97/0x150 [ 3119.376723][ T254] ip6_dst_alloc+0x23/0x90 [ 3119.376723][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3119.376723][ T254] ip6_pol_route+0x56f/0x840 [ 3119.376723][ T254] fib6_rule_lookup+0x334/0x630 [ 3119.376723][ T254] ip6_route_output_flags+0x259/0x480 [ 3119.376723][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3119.376723][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3119.376723][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.376723][ T254] netlink_unicast+0x449/0x710 [ 3119.376723][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.376723][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.376723][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.376723][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.376723][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.376723][ T254] [ 3119.378892][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.378892][ T254] netdev_get_by_index+0x5e/0x80 [ 3119.378892][ T254] fib6_nh_init+0x3d8/0x1580 [ 3119.378892][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3119.378892][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3119.378892][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3119.378892][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3119.378892][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3119.378892][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3119.378892][ T254] addrconf_dad_begin+0x310/0x670 [ 3119.378892][ T254] addrconf_dad_work+0x10b/0xab0 [ 3119.378892][ T254] process_one_work+0x84d/0x18a0 [ 3119.378892][ T254] worker_thread+0x587/0xd30 [ 3119.378892][ T254] kthread+0x28a/0x350 [ 3119.378892][ T254] ret_from_fork+0x31/0x70 [ 3119.378892][ T254] ret_from_fork_asm+0x1a/0x30 [ 3119.378892][ T254] [ 3119.381026][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.381026][ T254] netdev_get_by_index+0x5e/0x80 [ 3119.381026][ T254] fib6_nh_init+0x3d8/0x1580 [ 3119.381026][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3119.381026][ T254] ip6_route_add+0x1c/0x140 [ 3119.381026][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3119.381026][ T254] inet6_addr_add+0x4f8/0xa40 [ 3119.381026][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3119.381026][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3119.381026][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.381026][ T254] netlink_unicast+0x449/0x710 [ 3119.381026][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.381026][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.381026][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.381026][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.381026][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.381026][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3119.381026][ T254] [ 3119.383281][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.383281][ T254] netdev_get_by_index+0x5e/0x80 [ 3119.383281][ T254] fib6_nh_init+0x3d8/0x1580 [ 3119.383281][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3119.383281][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3119.383281][ T254] ipv6_add_addr+0x411/0x2000 [ 3119.383281][ T254] inet6_addr_add+0x30e/0xa40 [ 3119.383281][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3119.383281][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3119.383281][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.383281][ T254] netlink_unicast+0x449/0x710 [ 3119.383281][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.383281][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.383281][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.383281][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.383281][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.383281][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3119.383281][ T254] [ 3119.385537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.385537][ T254] netdev_get_by_index+0x5e/0x80 [ 3119.385537][ T254] fib6_nh_init+0x3d8/0x1580 [ 3119.385537][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3119.385537][ T254] ip6_route_add+0x1c/0x140 [ 3119.385537][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3119.385537][ T254] addrconf_add_dev+0xe2/0x170 [ 3119.385537][ T254] inet6_addr_add+0x12f/0xa40 [ 3119.385537][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3119.385537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3119.385537][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.385537][ T254] netlink_unicast+0x449/0x710 [ 3119.385537][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.385537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.385537][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.385537][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.385537][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.385537][ T254] [ 3119.387685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.387685][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3119.387685][ T254] ipv6_find_idev+0x102/0x170 [ 3119.387685][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3119.387685][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3119.387685][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.387685][ T254] netlink_unicast+0x449/0x710 [ 3119.387685][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.387685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.387685][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.387685][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.387685][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.387685][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3119.387685][ T254] [ 3119.389366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3119.389366][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3119.389366][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3119.389366][ T254] ipv6_find_idev+0x102/0x170 [ 3119.389366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3119.389366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3119.389366][ T254] netlink_rcv_skb+0x130/0x360 [ 3119.389366][ T254] netlink_unicast+0x449/0x710 [ 3119.389366][ T254] netlink_sendmsg+0x723/0xbe0 [ 3119.389366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3119.389366][ T254] ___sys_sendmsg+0xee/0x170 [ 3119.389366][ T254] __sys_sendmsg+0xcd/0x170 [ 3119.389366][ T254] do_syscall_64+0xc6/0x1e0 [ 3119.389366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3119.389366][ T254] [ 3129.399996][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3129.400669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.400669][ T254] dst_init+0x84/0x4a0 [ 3129.400669][ T254] dst_alloc+0x97/0x150 [ 3129.400669][ T254] ip6_dst_alloc+0x23/0x90 [ 3129.400669][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3129.400669][ T254] ip6_pol_route+0x56f/0x840 [ 3129.400669][ T254] fib6_rule_lookup+0x334/0x630 [ 3129.400669][ T254] ip6_route_output_flags+0x259/0x480 [ 3129.400669][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3129.400669][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3129.400669][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.400669][ T254] netlink_unicast+0x449/0x710 [ 3129.400669][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.400669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.400669][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.400669][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.400669][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.400669][ T254] [ 3129.402841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.402841][ T254] netdev_get_by_index+0x5e/0x80 [ 3129.402841][ T254] fib6_nh_init+0x3d8/0x1580 [ 3129.402841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3129.402841][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3129.402841][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3129.402841][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3129.402841][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3129.402841][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3129.402841][ T254] addrconf_dad_begin+0x310/0x670 [ 3129.402841][ T254] addrconf_dad_work+0x10b/0xab0 [ 3129.402841][ T254] process_one_work+0x84d/0x18a0 [ 3129.402841][ T254] worker_thread+0x587/0xd30 [ 3129.402841][ T254] kthread+0x28a/0x350 [ 3129.402841][ T254] ret_from_fork+0x31/0x70 [ 3129.402841][ T254] ret_from_fork_asm+0x1a/0x30 [ 3129.402841][ T254] [ 3129.404934][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.404934][ T254] netdev_get_by_index+0x5e/0x80 [ 3129.404934][ T254] fib6_nh_init+0x3d8/0x1580 [ 3129.404934][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3129.404934][ T254] ip6_route_add+0x1c/0x140 [ 3129.404934][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3129.404934][ T254] inet6_addr_add+0x4f8/0xa40 [ 3129.404934][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3129.404934][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3129.404934][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.404934][ T254] netlink_unicast+0x449/0x710 [ 3129.404934][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.404934][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.404934][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.404934][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.404934][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.404934][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3129.404934][ T254] [ 3129.407160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.407160][ T254] netdev_get_by_index+0x5e/0x80 [ 3129.407160][ T254] fib6_nh_init+0x3d8/0x1580 [ 3129.407160][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3129.407160][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3129.407160][ T254] ipv6_add_addr+0x411/0x2000 [ 3129.407160][ T254] inet6_addr_add+0x30e/0xa40 [ 3129.407160][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3129.407160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3129.407160][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.407160][ T254] netlink_unicast+0x449/0x710 [ 3129.407160][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.407160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.407160][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.407160][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.407160][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.407160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3129.407160][ T254] [ 3129.409380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.409380][ T254] netdev_get_by_index+0x5e/0x80 [ 3129.409380][ T254] fib6_nh_init+0x3d8/0x1580 [ 3129.409380][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3129.409380][ T254] ip6_route_add+0x1c/0x140 [ 3129.409380][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3129.409380][ T254] addrconf_add_dev+0xe2/0x170 [ 3129.409380][ T254] inet6_addr_add+0x12f/0xa40 [ 3129.409380][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3129.409380][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3129.409380][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.409380][ T254] netlink_unicast+0x449/0x710 [ 3129.409380][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.409380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.409380][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.409380][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.409380][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.409380][ T254] [ 3129.411579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.411579][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3129.411579][ T254] ipv6_find_idev+0x102/0x170 [ 3129.411579][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3129.411579][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3129.411579][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.411579][ T254] netlink_unicast+0x449/0x710 [ 3129.411579][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.411579][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.411579][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.411579][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.411579][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.411579][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3129.411579][ T254] [ 3129.413318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3129.413318][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3129.413318][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3129.413318][ T254] ipv6_find_idev+0x102/0x170 [ 3129.413318][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3129.413318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3129.413318][ T254] netlink_rcv_skb+0x130/0x360 [ 3129.413318][ T254] netlink_unicast+0x449/0x710 [ 3129.413318][ T254] netlink_sendmsg+0x723/0xbe0 [ 3129.413318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3129.413318][ T254] ___sys_sendmsg+0xee/0x170 [ 3129.413318][ T254] __sys_sendmsg+0xcd/0x170 [ 3129.413318][ T254] do_syscall_64+0xc6/0x1e0 [ 3129.413318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3129.413318][ T254] [ 3139.607922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3139.608542][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.608542][ T254] dst_init+0x84/0x4a0 [ 3139.608542][ T254] dst_alloc+0x97/0x150 [ 3139.608542][ T254] ip6_dst_alloc+0x23/0x90 [ 3139.608542][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3139.608542][ T254] ip6_pol_route+0x56f/0x840 [ 3139.608542][ T254] fib6_rule_lookup+0x334/0x630 [ 3139.608542][ T254] ip6_route_output_flags+0x259/0x480 [ 3139.608542][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3139.608542][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3139.608542][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.608542][ T254] netlink_unicast+0x449/0x710 [ 3139.608542][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.608542][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.608542][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.608542][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.608542][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.608542][ T254] [ 3139.610666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.610666][ T254] netdev_get_by_index+0x5e/0x80 [ 3139.610666][ T254] fib6_nh_init+0x3d8/0x1580 [ 3139.610666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3139.610666][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3139.610666][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3139.610666][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3139.610666][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3139.610666][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3139.610666][ T254] addrconf_dad_begin+0x310/0x670 [ 3139.610666][ T254] addrconf_dad_work+0x10b/0xab0 [ 3139.610666][ T254] process_one_work+0x84d/0x18a0 [ 3139.610666][ T254] worker_thread+0x587/0xd30 [ 3139.610666][ T254] kthread+0x28a/0x350 [ 3139.610666][ T254] ret_from_fork+0x31/0x70 [ 3139.610666][ T254] ret_from_fork_asm+0x1a/0x30 [ 3139.610666][ T254] [ 3139.612797][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.612797][ T254] netdev_get_by_index+0x5e/0x80 [ 3139.612797][ T254] fib6_nh_init+0x3d8/0x1580 [ 3139.612797][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3139.612797][ T254] ip6_route_add+0x1c/0x140 [ 3139.612797][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3139.612797][ T254] inet6_addr_add+0x4f8/0xa40 [ 3139.612797][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3139.612797][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3139.612797][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.612797][ T254] netlink_unicast+0x449/0x710 [ 3139.612797][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.612797][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.612797][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.612797][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.612797][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.612797][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3139.612797][ T254] [ 3139.614990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.614990][ T254] netdev_get_by_index+0x5e/0x80 [ 3139.614990][ T254] fib6_nh_init+0x3d8/0x1580 [ 3139.614990][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3139.614990][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3139.614990][ T254] ipv6_add_addr+0x411/0x2000 [ 3139.614990][ T254] inet6_addr_add+0x30e/0xa40 [ 3139.614990][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3139.614990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3139.614990][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.614990][ T254] netlink_unicast+0x449/0x710 [ 3139.614990][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.614990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.614990][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.614990][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.614990][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.614990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3139.614990][ T254] [ 3139.617171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.617171][ T254] netdev_get_by_index+0x5e/0x80 [ 3139.617171][ T254] fib6_nh_init+0x3d8/0x1580 [ 3139.617171][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3139.617171][ T254] ip6_route_add+0x1c/0x140 [ 3139.617171][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3139.617171][ T254] addrconf_add_dev+0xe2/0x170 [ 3139.617171][ T254] inet6_addr_add+0x12f/0xa40 [ 3139.617171][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3139.617171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3139.617171][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.617171][ T254] netlink_unicast+0x449/0x710 [ 3139.617171][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.617171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.617171][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.617171][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.617171][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.617171][ T254] [ 3139.619390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.619390][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3139.619390][ T254] ipv6_find_idev+0x102/0x170 [ 3139.619390][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3139.619390][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3139.619390][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.619390][ T254] netlink_unicast+0x449/0x710 [ 3139.619390][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.619390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.619390][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.619390][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.619390][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.619390][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3139.619390][ T254] [ 3139.621090][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3139.621090][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3139.621090][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3139.621090][ T254] ipv6_find_idev+0x102/0x170 [ 3139.621090][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3139.621090][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3139.621090][ T254] netlink_rcv_skb+0x130/0x360 [ 3139.621090][ T254] netlink_unicast+0x449/0x710 [ 3139.621090][ T254] netlink_sendmsg+0x723/0xbe0 [ 3139.621090][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3139.621090][ T254] ___sys_sendmsg+0xee/0x170 [ 3139.621090][ T254] __sys_sendmsg+0xcd/0x170 [ 3139.621090][ T254] do_syscall_64+0xc6/0x1e0 [ 3139.621090][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3139.621090][ T254] [ 3149.863918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3149.864649][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.864649][ T254] dst_init+0x84/0x4a0 [ 3149.864649][ T254] dst_alloc+0x97/0x150 [ 3149.864649][ T254] ip6_dst_alloc+0x23/0x90 [ 3149.864649][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3149.864649][ T254] ip6_pol_route+0x56f/0x840 [ 3149.864649][ T254] fib6_rule_lookup+0x334/0x630 [ 3149.864649][ T254] ip6_route_output_flags+0x259/0x480 [ 3149.864649][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3149.864649][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3149.864649][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.864649][ T254] netlink_unicast+0x449/0x710 [ 3149.864649][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.864649][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.864649][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.864649][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.864649][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.864649][ T254] [ 3149.866754][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.866754][ T254] netdev_get_by_index+0x5e/0x80 [ 3149.866754][ T254] fib6_nh_init+0x3d8/0x1580 [ 3149.866754][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3149.866754][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3149.866754][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3149.866754][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3149.866754][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3149.866754][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3149.866754][ T254] addrconf_dad_begin+0x310/0x670 [ 3149.866754][ T254] addrconf_dad_work+0x10b/0xab0 [ 3149.866754][ T254] process_one_work+0x84d/0x18a0 [ 3149.866754][ T254] worker_thread+0x587/0xd30 [ 3149.866754][ T254] kthread+0x28a/0x350 [ 3149.866754][ T254] ret_from_fork+0x31/0x70 [ 3149.866754][ T254] ret_from_fork_asm+0x1a/0x30 [ 3149.866754][ T254] [ 3149.868877][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.868877][ T254] netdev_get_by_index+0x5e/0x80 [ 3149.868877][ T254] fib6_nh_init+0x3d8/0x1580 [ 3149.868877][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3149.868877][ T254] ip6_route_add+0x1c/0x140 [ 3149.868877][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3149.868877][ T254] inet6_addr_add+0x4f8/0xa40 [ 3149.868877][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3149.868877][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3149.868877][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.868877][ T254] netlink_unicast+0x449/0x710 [ 3149.868877][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.868877][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.868877][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.868877][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.868877][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.868877][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3149.868877][ T254] [ 3149.871023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.871023][ T254] netdev_get_by_index+0x5e/0x80 [ 3149.871023][ T254] fib6_nh_init+0x3d8/0x1580 [ 3149.871023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3149.871023][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3149.871023][ T254] ipv6_add_addr+0x411/0x2000 [ 3149.871023][ T254] inet6_addr_add+0x30e/0xa40 [ 3149.871023][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3149.871023][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3149.871023][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.871023][ T254] netlink_unicast+0x449/0x710 [ 3149.871023][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.871023][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.871023][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.871023][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.871023][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.871023][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3149.871023][ T254] [ 3149.873136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.873136][ T254] netdev_get_by_index+0x5e/0x80 [ 3149.873136][ T254] fib6_nh_init+0x3d8/0x1580 [ 3149.873136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3149.873136][ T254] ip6_route_add+0x1c/0x140 [ 3149.873136][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3149.873136][ T254] addrconf_add_dev+0xe2/0x170 [ 3149.873136][ T254] inet6_addr_add+0x12f/0xa40 [ 3149.873136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3149.873136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3149.873136][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.873136][ T254] netlink_unicast+0x449/0x710 [ 3149.873136][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.873136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.873136][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.873136][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.873136][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.873136][ T254] [ 3149.875299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.875299][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3149.875299][ T254] ipv6_find_idev+0x102/0x170 [ 3149.875299][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3149.875299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3149.875299][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.875299][ T254] netlink_unicast+0x449/0x710 [ 3149.875299][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.875299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.875299][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.875299][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.875299][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.875299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3149.875299][ T254] [ 3149.876922][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3149.876922][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3149.876922][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3149.876922][ T254] ipv6_find_idev+0x102/0x170 [ 3149.876922][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3149.876922][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3149.876922][ T254] netlink_rcv_skb+0x130/0x360 [ 3149.876922][ T254] netlink_unicast+0x449/0x710 [ 3149.876922][ T254] netlink_sendmsg+0x723/0xbe0 [ 3149.876922][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3149.876922][ T254] ___sys_sendmsg+0xee/0x170 [ 3149.876922][ T254] __sys_sendmsg+0xcd/0x170 [ 3149.876922][ T254] do_syscall_64+0xc6/0x1e0 [ 3149.876922][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3149.876922][ T254] [ 3160.119846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3160.120414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.120414][ T254] dst_init+0x84/0x4a0 [ 3160.120414][ T254] dst_alloc+0x97/0x150 [ 3160.120414][ T254] ip6_dst_alloc+0x23/0x90 [ 3160.120414][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3160.120414][ T254] ip6_pol_route+0x56f/0x840 [ 3160.120414][ T254] fib6_rule_lookup+0x334/0x630 [ 3160.120414][ T254] ip6_route_output_flags+0x259/0x480 [ 3160.120414][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3160.120414][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3160.120414][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.120414][ T254] netlink_unicast+0x449/0x710 [ 3160.120414][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.120414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.120414][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.120414][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.120414][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.120414][ T254] [ 3160.122790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.122790][ T254] netdev_get_by_index+0x5e/0x80 [ 3160.122790][ T254] fib6_nh_init+0x3d8/0x1580 [ 3160.122790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3160.122790][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3160.122790][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3160.122790][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3160.122790][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3160.122790][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3160.122790][ T254] addrconf_dad_begin+0x310/0x670 [ 3160.122790][ T254] addrconf_dad_work+0x10b/0xab0 [ 3160.122790][ T254] process_one_work+0x84d/0x18a0 [ 3160.122790][ T254] worker_thread+0x587/0xd30 [ 3160.122790][ T254] kthread+0x28a/0x350 [ 3160.122790][ T254] ret_from_fork+0x31/0x70 [ 3160.122790][ T254] ret_from_fork_asm+0x1a/0x30 [ 3160.122790][ T254] [ 3160.124996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.124996][ T254] netdev_get_by_index+0x5e/0x80 [ 3160.124996][ T254] fib6_nh_init+0x3d8/0x1580 [ 3160.124996][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3160.124996][ T254] ip6_route_add+0x1c/0x140 [ 3160.124996][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3160.124996][ T254] inet6_addr_add+0x4f8/0xa40 [ 3160.124996][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3160.124996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3160.124996][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.124996][ T254] netlink_unicast+0x449/0x710 [ 3160.124996][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.124996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.124996][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.124996][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.124996][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.124996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3160.124996][ T254] [ 3160.127692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.127692][ T254] netdev_get_by_index+0x5e/0x80 [ 3160.127692][ T254] fib6_nh_init+0x3d8/0x1580 [ 3160.127692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3160.127692][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3160.127692][ T254] ipv6_add_addr+0x411/0x2000 [ 3160.127692][ T254] inet6_addr_add+0x30e/0xa40 [ 3160.127692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3160.127692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3160.127692][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.127692][ T254] netlink_unicast+0x449/0x710 [ 3160.127692][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.127692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.127692][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.127692][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.127692][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.127692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3160.127692][ T254] [ 3160.130093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.130093][ T254] netdev_get_by_index+0x5e/0x80 [ 3160.130093][ T254] fib6_nh_init+0x3d8/0x1580 [ 3160.130093][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3160.130093][ T254] ip6_route_add+0x1c/0x140 [ 3160.130093][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3160.130093][ T254] addrconf_add_dev+0xe2/0x170 [ 3160.130093][ T254] inet6_addr_add+0x12f/0xa40 [ 3160.130093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3160.130093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3160.130093][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.130093][ T254] netlink_unicast+0x449/0x710 [ 3160.130093][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.130093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.130093][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.130093][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.130093][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.130093][ T254] [ 3160.132431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.132431][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3160.132431][ T254] ipv6_find_idev+0x102/0x170 [ 3160.132431][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3160.132431][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3160.132431][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.132431][ T254] netlink_unicast+0x449/0x710 [ 3160.132431][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.132431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.132431][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.132431][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.132431][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.132431][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3160.132431][ T254] [ 3160.134236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3160.134236][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3160.134236][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3160.134236][ T254] ipv6_find_idev+0x102/0x170 [ 3160.134236][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3160.134236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3160.134236][ T254] netlink_rcv_skb+0x130/0x360 [ 3160.134236][ T254] netlink_unicast+0x449/0x710 [ 3160.134236][ T254] netlink_sendmsg+0x723/0xbe0 [ 3160.134236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3160.134236][ T254] ___sys_sendmsg+0xee/0x170 [ 3160.134236][ T254] __sys_sendmsg+0xcd/0x170 [ 3160.134236][ T254] do_syscall_64+0xc6/0x1e0 [ 3160.134236][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3160.134236][ T254] [ 3170.335945][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3170.336467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.336467][ T254] dst_init+0x84/0x4a0 [ 3170.336467][ T254] dst_alloc+0x97/0x150 [ 3170.336467][ T254] ip6_dst_alloc+0x23/0x90 [ 3170.336467][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3170.336467][ T254] ip6_pol_route+0x56f/0x840 [ 3170.336467][ T254] fib6_rule_lookup+0x334/0x630 [ 3170.336467][ T254] ip6_route_output_flags+0x259/0x480 [ 3170.336467][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3170.336467][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3170.336467][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.336467][ T254] netlink_unicast+0x449/0x710 [ 3170.336467][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.336467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.336467][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.336467][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.336467][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.336467][ T254] [ 3170.338762][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.338762][ T254] netdev_get_by_index+0x5e/0x80 [ 3170.338762][ T254] fib6_nh_init+0x3d8/0x1580 [ 3170.338762][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3170.338762][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3170.338762][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3170.338762][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3170.338762][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3170.338762][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3170.338762][ T254] addrconf_dad_begin+0x310/0x670 [ 3170.338762][ T254] addrconf_dad_work+0x10b/0xab0 [ 3170.338762][ T254] process_one_work+0x84d/0x18a0 [ 3170.338762][ T254] worker_thread+0x587/0xd30 [ 3170.338762][ T254] kthread+0x28a/0x350 [ 3170.338762][ T254] ret_from_fork+0x31/0x70 [ 3170.338762][ T254] ret_from_fork_asm+0x1a/0x30 [ 3170.338762][ T254] [ 3170.340996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.340996][ T254] netdev_get_by_index+0x5e/0x80 [ 3170.340996][ T254] fib6_nh_init+0x3d8/0x1580 [ 3170.340996][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3170.340996][ T254] ip6_route_add+0x1c/0x140 [ 3170.340996][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3170.340996][ T254] inet6_addr_add+0x4f8/0xa40 [ 3170.340996][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3170.340996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3170.340996][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.340996][ T254] netlink_unicast+0x449/0x710 [ 3170.340996][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.340996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.340996][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.340996][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.340996][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.340996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3170.340996][ T254] [ 3170.343376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.343376][ T254] netdev_get_by_index+0x5e/0x80 [ 3170.343376][ T254] fib6_nh_init+0x3d8/0x1580 [ 3170.343376][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3170.343376][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3170.343376][ T254] ipv6_add_addr+0x411/0x2000 [ 3170.343376][ T254] inet6_addr_add+0x30e/0xa40 [ 3170.343376][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3170.343376][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3170.343376][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.343376][ T254] netlink_unicast+0x449/0x710 [ 3170.343376][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.343376][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.343376][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.343376][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.343376][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.343376][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3170.343376][ T254] [ 3170.345720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.345720][ T254] netdev_get_by_index+0x5e/0x80 [ 3170.345720][ T254] fib6_nh_init+0x3d8/0x1580 [ 3170.345720][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3170.345720][ T254] ip6_route_add+0x1c/0x140 [ 3170.345720][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3170.345720][ T254] addrconf_add_dev+0xe2/0x170 [ 3170.345720][ T254] inet6_addr_add+0x12f/0xa40 [ 3170.345720][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3170.345720][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3170.345720][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.345720][ T254] netlink_unicast+0x449/0x710 [ 3170.345720][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.345720][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.345720][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.345720][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.345720][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.345720][ T254] [ 3170.348004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.348004][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3170.348004][ T254] ipv6_find_idev+0x102/0x170 [ 3170.348004][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3170.348004][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3170.348004][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.348004][ T254] netlink_unicast+0x449/0x710 [ 3170.348004][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.348004][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.348004][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.348004][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.348004][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.348004][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3170.348004][ T254] [ 3170.349800][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3170.349800][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3170.349800][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3170.349800][ T254] ipv6_find_idev+0x102/0x170 [ 3170.349800][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3170.349800][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3170.349800][ T254] netlink_rcv_skb+0x130/0x360 [ 3170.349800][ T254] netlink_unicast+0x449/0x710 [ 3170.349800][ T254] netlink_sendmsg+0x723/0xbe0 [ 3170.349800][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3170.349800][ T254] ___sys_sendmsg+0xee/0x170 [ 3170.349800][ T254] __sys_sendmsg+0xcd/0x170 [ 3170.349800][ T254] do_syscall_64+0xc6/0x1e0 [ 3170.349800][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3170.349800][ T254] [ 3180.591842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3180.592410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.592410][ T254] dst_init+0x84/0x4a0 [ 3180.592410][ T254] dst_alloc+0x97/0x150 [ 3180.592410][ T254] ip6_dst_alloc+0x23/0x90 [ 3180.592410][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3180.592410][ T254] ip6_pol_route+0x56f/0x840 [ 3180.592410][ T254] fib6_rule_lookup+0x334/0x630 [ 3180.592410][ T254] ip6_route_output_flags+0x259/0x480 [ 3180.592410][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3180.592410][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3180.592410][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.592410][ T254] netlink_unicast+0x449/0x710 [ 3180.592410][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.592410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.592410][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.592410][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.592410][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.592410][ T254] [ 3180.594701][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.594701][ T254] netdev_get_by_index+0x5e/0x80 [ 3180.594701][ T254] fib6_nh_init+0x3d8/0x1580 [ 3180.594701][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3180.594701][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3180.594701][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3180.594701][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3180.594701][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3180.594701][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3180.594701][ T254] addrconf_dad_begin+0x310/0x670 [ 3180.594701][ T254] addrconf_dad_work+0x10b/0xab0 [ 3180.594701][ T254] process_one_work+0x84d/0x18a0 [ 3180.594701][ T254] worker_thread+0x587/0xd30 [ 3180.594701][ T254] kthread+0x28a/0x350 [ 3180.594701][ T254] ret_from_fork+0x31/0x70 [ 3180.594701][ T254] ret_from_fork_asm+0x1a/0x30 [ 3180.594701][ T254] [ 3180.596953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.596953][ T254] netdev_get_by_index+0x5e/0x80 [ 3180.596953][ T254] fib6_nh_init+0x3d8/0x1580 [ 3180.596953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3180.596953][ T254] ip6_route_add+0x1c/0x140 [ 3180.596953][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3180.596953][ T254] inet6_addr_add+0x4f8/0xa40 [ 3180.596953][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3180.596953][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3180.596953][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.596953][ T254] netlink_unicast+0x449/0x710 [ 3180.596953][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.596953][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.596953][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.596953][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.596953][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.596953][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3180.596953][ T254] [ 3180.599295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.599295][ T254] netdev_get_by_index+0x5e/0x80 [ 3180.599295][ T254] fib6_nh_init+0x3d8/0x1580 [ 3180.599295][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3180.599295][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3180.599295][ T254] ipv6_add_addr+0x411/0x2000 [ 3180.599295][ T254] inet6_addr_add+0x30e/0xa40 [ 3180.599295][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3180.599295][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3180.599295][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.599295][ T254] netlink_unicast+0x449/0x710 [ 3180.599295][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.599295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.599295][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.599295][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.599295][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.599295][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3180.599295][ T254] [ 3180.601628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.601628][ T254] netdev_get_by_index+0x5e/0x80 [ 3180.601628][ T254] fib6_nh_init+0x3d8/0x1580 [ 3180.601628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3180.601628][ T254] ip6_route_add+0x1c/0x140 [ 3180.601628][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3180.601628][ T254] addrconf_add_dev+0xe2/0x170 [ 3180.601628][ T254] inet6_addr_add+0x12f/0xa40 [ 3180.601628][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3180.601628][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3180.601628][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.601628][ T254] netlink_unicast+0x449/0x710 [ 3180.601628][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.601628][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.601628][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.601628][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.601628][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.601628][ T254] [ 3180.603921][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.603921][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3180.603921][ T254] ipv6_find_idev+0x102/0x170 [ 3180.603921][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3180.603921][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3180.603921][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.603921][ T254] netlink_unicast+0x449/0x710 [ 3180.603921][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.603921][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.603921][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.603921][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.603921][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.603921][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3180.603921][ T254] [ 3180.605717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3180.605717][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3180.605717][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3180.605717][ T254] ipv6_find_idev+0x102/0x170 [ 3180.605717][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3180.605717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3180.605717][ T254] netlink_rcv_skb+0x130/0x360 [ 3180.605717][ T254] netlink_unicast+0x449/0x710 [ 3180.605717][ T254] netlink_sendmsg+0x723/0xbe0 [ 3180.605717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3180.605717][ T254] ___sys_sendmsg+0xee/0x170 [ 3180.605717][ T254] __sys_sendmsg+0xcd/0x170 [ 3180.605717][ T254] do_syscall_64+0xc6/0x1e0 [ 3180.605717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3180.605717][ T254] [ 3190.639904][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3190.640453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.640453][ T254] dst_init+0x84/0x4a0 [ 3190.640453][ T254] dst_alloc+0x97/0x150 [ 3190.640453][ T254] ip6_dst_alloc+0x23/0x90 [ 3190.640453][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3190.640453][ T254] ip6_pol_route+0x56f/0x840 [ 3190.640453][ T254] fib6_rule_lookup+0x334/0x630 [ 3190.640453][ T254] ip6_route_output_flags+0x259/0x480 [ 3190.640453][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3190.640453][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3190.640453][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.640453][ T254] netlink_unicast+0x449/0x710 [ 3190.640453][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.640453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.640453][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.640453][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.640453][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.640453][ T254] [ 3190.642786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.642786][ T254] netdev_get_by_index+0x5e/0x80 [ 3190.642786][ T254] fib6_nh_init+0x3d8/0x1580 [ 3190.642786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3190.642786][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3190.642786][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3190.642786][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3190.642786][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3190.642786][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3190.642786][ T254] addrconf_dad_begin+0x310/0x670 [ 3190.642786][ T254] addrconf_dad_work+0x10b/0xab0 [ 3190.642786][ T254] process_one_work+0x84d/0x18a0 [ 3190.642786][ T254] worker_thread+0x587/0xd30 [ 3190.642786][ T254] kthread+0x28a/0x350 [ 3190.642786][ T254] ret_from_fork+0x31/0x70 [ 3190.642786][ T254] ret_from_fork_asm+0x1a/0x30 [ 3190.642786][ T254] [ 3190.645035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.645035][ T254] netdev_get_by_index+0x5e/0x80 [ 3190.645035][ T254] fib6_nh_init+0x3d8/0x1580 [ 3190.645035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3190.645035][ T254] ip6_route_add+0x1c/0x140 [ 3190.645035][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3190.645035][ T254] inet6_addr_add+0x4f8/0xa40 [ 3190.645035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3190.645035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3190.645035][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.645035][ T254] netlink_unicast+0x449/0x710 [ 3190.645035][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.645035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.645035][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.645035][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.645035][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.645035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3190.645035][ T254] [ 3190.647370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.647370][ T254] netdev_get_by_index+0x5e/0x80 [ 3190.647370][ T254] fib6_nh_init+0x3d8/0x1580 [ 3190.647370][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3190.647370][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3190.647370][ T254] ipv6_add_addr+0x411/0x2000 [ 3190.647370][ T254] inet6_addr_add+0x30e/0xa40 [ 3190.647370][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3190.647370][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3190.647370][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.647370][ T254] netlink_unicast+0x449/0x710 [ 3190.647370][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.647370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.647370][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.647370][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.647370][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.647370][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3190.647370][ T254] [ 3190.649698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.649698][ T254] netdev_get_by_index+0x5e/0x80 [ 3190.649698][ T254] fib6_nh_init+0x3d8/0x1580 [ 3190.649698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3190.649698][ T254] ip6_route_add+0x1c/0x140 [ 3190.649698][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3190.649698][ T254] addrconf_add_dev+0xe2/0x170 [ 3190.649698][ T254] inet6_addr_add+0x12f/0xa40 [ 3190.649698][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3190.649698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3190.649698][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.649698][ T254] netlink_unicast+0x449/0x710 [ 3190.649698][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.649698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.649698][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.649698][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.649698][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.649698][ T254] [ 3190.652005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.652005][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3190.652005][ T254] ipv6_find_idev+0x102/0x170 [ 3190.652005][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3190.652005][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3190.652005][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.652005][ T254] netlink_unicast+0x449/0x710 [ 3190.652005][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.652005][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.652005][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.652005][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.652005][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.652005][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3190.652005][ T254] [ 3190.653796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3190.653796][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3190.653796][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3190.653796][ T254] ipv6_find_idev+0x102/0x170 [ 3190.653796][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3190.653796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3190.653796][ T254] netlink_rcv_skb+0x130/0x360 [ 3190.653796][ T254] netlink_unicast+0x449/0x710 [ 3190.653796][ T254] netlink_sendmsg+0x723/0xbe0 [ 3190.653796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3190.653796][ T254] ___sys_sendmsg+0xee/0x170 [ 3190.653796][ T254] __sys_sendmsg+0xcd/0x170 [ 3190.653796][ T254] do_syscall_64+0xc6/0x1e0 [ 3190.653796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3190.653796][ T254] [ 3200.679919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3200.680717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.680717][ T254] dst_init+0x84/0x4a0 [ 3200.680717][ T254] dst_alloc+0x97/0x150 [ 3200.680717][ T254] ip6_dst_alloc+0x23/0x90 [ 3200.680717][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3200.680717][ T254] ip6_pol_route+0x56f/0x840 [ 3200.680717][ T254] fib6_rule_lookup+0x334/0x630 [ 3200.680717][ T254] ip6_route_output_flags+0x259/0x480 [ 3200.680717][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3200.680717][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3200.680717][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.680717][ T254] netlink_unicast+0x449/0x710 [ 3200.680717][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.680717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.680717][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.680717][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.680717][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.680717][ T254] [ 3200.682898][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.682898][ T254] netdev_get_by_index+0x5e/0x80 [ 3200.682898][ T254] fib6_nh_init+0x3d8/0x1580 [ 3200.682898][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3200.682898][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3200.682898][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3200.682898][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3200.682898][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3200.682898][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3200.682898][ T254] addrconf_dad_begin+0x310/0x670 [ 3200.682898][ T254] addrconf_dad_work+0x10b/0xab0 [ 3200.682898][ T254] process_one_work+0x84d/0x18a0 [ 3200.682898][ T254] worker_thread+0x587/0xd30 [ 3200.682898][ T254] kthread+0x28a/0x350 [ 3200.682898][ T254] ret_from_fork+0x31/0x70 [ 3200.682898][ T254] ret_from_fork_asm+0x1a/0x30 [ 3200.682898][ T254] [ 3200.685129][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.685129][ T254] netdev_get_by_index+0x5e/0x80 [ 3200.685129][ T254] fib6_nh_init+0x3d8/0x1580 [ 3200.685129][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3200.685129][ T254] ip6_route_add+0x1c/0x140 [ 3200.685129][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3200.685129][ T254] inet6_addr_add+0x4f8/0xa40 [ 3200.685129][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3200.685129][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3200.685129][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.685129][ T254] netlink_unicast+0x449/0x710 [ 3200.685129][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.685129][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.685129][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.685129][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.685129][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.685129][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3200.685129][ T254] [ 3200.687350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.687350][ T254] netdev_get_by_index+0x5e/0x80 [ 3200.687350][ T254] fib6_nh_init+0x3d8/0x1580 [ 3200.687350][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3200.687350][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3200.687350][ T254] ipv6_add_addr+0x411/0x2000 [ 3200.687350][ T254] inet6_addr_add+0x30e/0xa40 [ 3200.687350][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3200.687350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3200.687350][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.687350][ T254] netlink_unicast+0x449/0x710 [ 3200.687350][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.687350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.687350][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.687350][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.687350][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.687350][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3200.687350][ T254] [ 3200.689567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.689567][ T254] netdev_get_by_index+0x5e/0x80 [ 3200.689567][ T254] fib6_nh_init+0x3d8/0x1580 [ 3200.689567][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3200.689567][ T254] ip6_route_add+0x1c/0x140 [ 3200.689567][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3200.689567][ T254] addrconf_add_dev+0xe2/0x170 [ 3200.689567][ T254] inet6_addr_add+0x12f/0xa40 [ 3200.689567][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3200.689567][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3200.689567][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.689567][ T254] netlink_unicast+0x449/0x710 [ 3200.689567][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.689567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.689567][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.689567][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.689567][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.689567][ T254] [ 3200.691781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.691781][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3200.691781][ T254] ipv6_find_idev+0x102/0x170 [ 3200.691781][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3200.691781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3200.691781][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.691781][ T254] netlink_unicast+0x449/0x710 [ 3200.691781][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.691781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.691781][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.691781][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.691781][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.691781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3200.691781][ T254] [ 3200.693546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3200.693546][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3200.693546][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3200.693546][ T254] ipv6_find_idev+0x102/0x170 [ 3200.693546][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3200.693546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3200.693546][ T254] netlink_rcv_skb+0x130/0x360 [ 3200.693546][ T254] netlink_unicast+0x449/0x710 [ 3200.693546][ T254] netlink_sendmsg+0x723/0xbe0 [ 3200.693546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3200.693546][ T254] ___sys_sendmsg+0xee/0x170 [ 3200.693546][ T254] __sys_sendmsg+0xcd/0x170 [ 3200.693546][ T254] do_syscall_64+0xc6/0x1e0 [ 3200.693546][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3200.693546][ T254] [ 3210.943925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3210.944745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.944745][ T254] dst_init+0x84/0x4a0 [ 3210.944745][ T254] dst_alloc+0x97/0x150 [ 3210.944745][ T254] ip6_dst_alloc+0x23/0x90 [ 3210.944745][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3210.944745][ T254] ip6_pol_route+0x56f/0x840 [ 3210.944745][ T254] fib6_rule_lookup+0x334/0x630 [ 3210.944745][ T254] ip6_route_output_flags+0x259/0x480 [ 3210.944745][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3210.944745][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3210.944745][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.944745][ T254] netlink_unicast+0x449/0x710 [ 3210.944745][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.944745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.944745][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.944745][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.944745][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.944745][ T254] [ 3210.946977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.946977][ T254] netdev_get_by_index+0x5e/0x80 [ 3210.946977][ T254] fib6_nh_init+0x3d8/0x1580 [ 3210.946977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3210.946977][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3210.946977][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3210.946977][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3210.946977][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3210.946977][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3210.946977][ T254] addrconf_dad_begin+0x310/0x670 [ 3210.946977][ T254] addrconf_dad_work+0x10b/0xab0 [ 3210.946977][ T254] process_one_work+0x84d/0x18a0 [ 3210.946977][ T254] worker_thread+0x587/0xd30 [ 3210.946977][ T254] kthread+0x28a/0x350 [ 3210.946977][ T254] ret_from_fork+0x31/0x70 [ 3210.946977][ T254] ret_from_fork_asm+0x1a/0x30 [ 3210.946977][ T254] [ 3210.949072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.949072][ T254] netdev_get_by_index+0x5e/0x80 [ 3210.949072][ T254] fib6_nh_init+0x3d8/0x1580 [ 3210.949072][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3210.949072][ T254] ip6_route_add+0x1c/0x140 [ 3210.949072][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3210.949072][ T254] inet6_addr_add+0x4f8/0xa40 [ 3210.949072][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3210.949072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3210.949072][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.949072][ T254] netlink_unicast+0x449/0x710 [ 3210.949072][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.949072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.949072][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.949072][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.949072][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.949072][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3210.949072][ T254] [ 3210.951275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.951275][ T254] netdev_get_by_index+0x5e/0x80 [ 3210.951275][ T254] fib6_nh_init+0x3d8/0x1580 [ 3210.951275][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3210.951275][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3210.951275][ T254] ipv6_add_addr+0x411/0x2000 [ 3210.951275][ T254] inet6_addr_add+0x30e/0xa40 [ 3210.951275][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3210.951275][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3210.951275][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.951275][ T254] netlink_unicast+0x449/0x710 [ 3210.951275][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.951275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.951275][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.951275][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.951275][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.951275][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3210.951275][ T254] [ 3210.953529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.953529][ T254] netdev_get_by_index+0x5e/0x80 [ 3210.953529][ T254] fib6_nh_init+0x3d8/0x1580 [ 3210.953529][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3210.953529][ T254] ip6_route_add+0x1c/0x140 [ 3210.953529][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3210.953529][ T254] addrconf_add_dev+0xe2/0x170 [ 3210.953529][ T254] inet6_addr_add+0x12f/0xa40 [ 3210.953529][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3210.953529][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3210.953529][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.953529][ T254] netlink_unicast+0x449/0x710 [ 3210.953529][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.953529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.953529][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.953529][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.953529][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.953529][ T254] [ 3210.955722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.955722][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3210.955722][ T254] ipv6_find_idev+0x102/0x170 [ 3210.955722][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3210.955722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3210.955722][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.955722][ T254] netlink_unicast+0x449/0x710 [ 3210.955722][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.955722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.955722][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.955722][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.955722][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.955722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3210.955722][ T254] [ 3210.957468][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3210.957468][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3210.957468][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3210.957468][ T254] ipv6_find_idev+0x102/0x170 [ 3210.957468][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3210.957468][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3210.957468][ T254] netlink_rcv_skb+0x130/0x360 [ 3210.957468][ T254] netlink_unicast+0x449/0x710 [ 3210.957468][ T254] netlink_sendmsg+0x723/0xbe0 [ 3210.957468][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3210.957468][ T254] ___sys_sendmsg+0xee/0x170 [ 3210.957468][ T254] __sys_sendmsg+0xcd/0x170 [ 3210.957468][ T254] do_syscall_64+0xc6/0x1e0 [ 3210.957468][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3210.957468][ T254] [ 3221.335959][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3221.336630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.336630][ T254] dst_init+0x84/0x4a0 [ 3221.336630][ T254] dst_alloc+0x97/0x150 [ 3221.336630][ T254] ip6_dst_alloc+0x23/0x90 [ 3221.336630][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3221.336630][ T254] ip6_pol_route+0x56f/0x840 [ 3221.336630][ T254] fib6_rule_lookup+0x334/0x630 [ 3221.336630][ T254] ip6_route_output_flags+0x259/0x480 [ 3221.336630][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3221.336630][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3221.336630][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.336630][ T254] netlink_unicast+0x449/0x710 [ 3221.336630][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.336630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.336630][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.336630][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.336630][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.336630][ T254] [ 3221.338782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.338782][ T254] netdev_get_by_index+0x5e/0x80 [ 3221.338782][ T254] fib6_nh_init+0x3d8/0x1580 [ 3221.338782][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3221.338782][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3221.338782][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3221.338782][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3221.338782][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3221.338782][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3221.338782][ T254] addrconf_dad_begin+0x310/0x670 [ 3221.338782][ T254] addrconf_dad_work+0x10b/0xab0 [ 3221.338782][ T254] process_one_work+0x84d/0x18a0 [ 3221.338782][ T254] worker_thread+0x587/0xd30 [ 3221.338782][ T254] kthread+0x28a/0x350 [ 3221.338782][ T254] ret_from_fork+0x31/0x70 [ 3221.338782][ T254] ret_from_fork_asm+0x1a/0x30 [ 3221.338782][ T254] [ 3221.340881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.340881][ T254] netdev_get_by_index+0x5e/0x80 [ 3221.340881][ T254] fib6_nh_init+0x3d8/0x1580 [ 3221.340881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3221.340881][ T254] ip6_route_add+0x1c/0x140 [ 3221.340881][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3221.340881][ T254] inet6_addr_add+0x4f8/0xa40 [ 3221.340881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3221.340881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3221.340881][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.340881][ T254] netlink_unicast+0x449/0x710 [ 3221.340881][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.340881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.340881][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.340881][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.340881][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.340881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3221.340881][ T254] [ 3221.343133][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.343133][ T254] netdev_get_by_index+0x5e/0x80 [ 3221.343133][ T254] fib6_nh_init+0x3d8/0x1580 [ 3221.343133][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3221.343133][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3221.343133][ T254] ipv6_add_addr+0x411/0x2000 [ 3221.343133][ T254] inet6_addr_add+0x30e/0xa40 [ 3221.343133][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3221.343133][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3221.343133][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.343133][ T254] netlink_unicast+0x449/0x710 [ 3221.343133][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.343133][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.343133][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.343133][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.343133][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.343133][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3221.343133][ T254] [ 3221.345375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.345375][ T254] netdev_get_by_index+0x5e/0x80 [ 3221.345375][ T254] fib6_nh_init+0x3d8/0x1580 [ 3221.345375][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3221.345375][ T254] ip6_route_add+0x1c/0x140 [ 3221.345375][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3221.345375][ T254] addrconf_add_dev+0xe2/0x170 [ 3221.345375][ T254] inet6_addr_add+0x12f/0xa40 [ 3221.345375][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3221.345375][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3221.345375][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.345375][ T254] netlink_unicast+0x449/0x710 [ 3221.345375][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.345375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.345375][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.345375][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.345375][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.345375][ T254] [ 3221.347570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.347570][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3221.347570][ T254] ipv6_find_idev+0x102/0x170 [ 3221.347570][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3221.347570][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3221.347570][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.347570][ T254] netlink_unicast+0x449/0x710 [ 3221.347570][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.347570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.347570][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.347570][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.347570][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.347570][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3221.347570][ T254] [ 3221.349292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3221.349292][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3221.349292][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3221.349292][ T254] ipv6_find_idev+0x102/0x170 [ 3221.349292][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3221.349292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3221.349292][ T254] netlink_rcv_skb+0x130/0x360 [ 3221.349292][ T254] netlink_unicast+0x449/0x710 [ 3221.349292][ T254] netlink_sendmsg+0x723/0xbe0 [ 3221.349292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3221.349292][ T254] ___sys_sendmsg+0xee/0x170 [ 3221.349292][ T254] __sys_sendmsg+0xcd/0x170 [ 3221.349292][ T254] do_syscall_64+0xc6/0x1e0 [ 3221.349292][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3221.349292][ T254] [ 3231.599919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3231.600555][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.600555][ T254] dst_init+0x84/0x4a0 [ 3231.600555][ T254] dst_alloc+0x97/0x150 [ 3231.600555][ T254] ip6_dst_alloc+0x23/0x90 [ 3231.600555][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3231.600555][ T254] ip6_pol_route+0x56f/0x840 [ 3231.600555][ T254] fib6_rule_lookup+0x334/0x630 [ 3231.600555][ T254] ip6_route_output_flags+0x259/0x480 [ 3231.600555][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3231.600555][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3231.600555][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.600555][ T254] netlink_unicast+0x449/0x710 [ 3231.600555][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.600555][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.600555][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.600555][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.600555][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.600555][ T254] [ 3231.602791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.602791][ T254] netdev_get_by_index+0x5e/0x80 [ 3231.602791][ T254] fib6_nh_init+0x3d8/0x1580 [ 3231.602791][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3231.602791][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3231.602791][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3231.602791][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3231.602791][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3231.602791][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3231.602791][ T254] addrconf_dad_begin+0x310/0x670 [ 3231.602791][ T254] addrconf_dad_work+0x10b/0xab0 [ 3231.602791][ T254] process_one_work+0x84d/0x18a0 [ 3231.602791][ T254] worker_thread+0x587/0xd30 [ 3231.602791][ T254] kthread+0x28a/0x350 [ 3231.602791][ T254] ret_from_fork+0x31/0x70 [ 3231.602791][ T254] ret_from_fork_asm+0x1a/0x30 [ 3231.602791][ T254] [ 3231.604951][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.604951][ T254] netdev_get_by_index+0x5e/0x80 [ 3231.604951][ T254] fib6_nh_init+0x3d8/0x1580 [ 3231.604951][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3231.604951][ T254] ip6_route_add+0x1c/0x140 [ 3231.604951][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3231.604951][ T254] inet6_addr_add+0x4f8/0xa40 [ 3231.604951][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3231.604951][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3231.604951][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.604951][ T254] netlink_unicast+0x449/0x710 [ 3231.604951][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.604951][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.604951][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.604951][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.604951][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.604951][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3231.604951][ T254] [ 3231.607199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.607199][ T254] netdev_get_by_index+0x5e/0x80 [ 3231.607199][ T254] fib6_nh_init+0x3d8/0x1580 [ 3231.607199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3231.607199][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3231.607199][ T254] ipv6_add_addr+0x411/0x2000 [ 3231.607199][ T254] inet6_addr_add+0x30e/0xa40 [ 3231.607199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3231.607199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3231.607199][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.607199][ T254] netlink_unicast+0x449/0x710 [ 3231.607199][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.607199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.607199][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.607199][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.607199][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.607199][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3231.607199][ T254] [ 3231.609429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.609429][ T254] netdev_get_by_index+0x5e/0x80 [ 3231.609429][ T254] fib6_nh_init+0x3d8/0x1580 [ 3231.609429][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3231.609429][ T254] ip6_route_add+0x1c/0x140 [ 3231.609429][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3231.609429][ T254] addrconf_add_dev+0xe2/0x170 [ 3231.609429][ T254] inet6_addr_add+0x12f/0xa40 [ 3231.609429][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3231.609429][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3231.609429][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.609429][ T254] netlink_unicast+0x449/0x710 [ 3231.609429][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.609429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.609429][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.609429][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.609429][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.609429][ T254] [ 3231.611622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.611622][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3231.611622][ T254] ipv6_find_idev+0x102/0x170 [ 3231.611622][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3231.611622][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3231.611622][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.611622][ T254] netlink_unicast+0x449/0x710 [ 3231.611622][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.611622][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.611622][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.611622][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.611622][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.611622][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3231.611622][ T254] [ 3231.613353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3231.613353][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3231.613353][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3231.613353][ T254] ipv6_find_idev+0x102/0x170 [ 3231.613353][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3231.613353][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3231.613353][ T254] netlink_rcv_skb+0x130/0x360 [ 3231.613353][ T254] netlink_unicast+0x449/0x710 [ 3231.613353][ T254] netlink_sendmsg+0x723/0xbe0 [ 3231.613353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3231.613353][ T254] ___sys_sendmsg+0xee/0x170 [ 3231.613353][ T254] __sys_sendmsg+0xcd/0x170 [ 3231.613353][ T254] do_syscall_64+0xc6/0x1e0 [ 3231.613353][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3231.613353][ T254] [ 3241.615936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3241.616567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.616567][ T254] dst_init+0x84/0x4a0 [ 3241.616567][ T254] dst_alloc+0x97/0x150 [ 3241.616567][ T254] ip6_dst_alloc+0x23/0x90 [ 3241.616567][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3241.616567][ T254] ip6_pol_route+0x56f/0x840 [ 3241.616567][ T254] fib6_rule_lookup+0x334/0x630 [ 3241.616567][ T254] ip6_route_output_flags+0x259/0x480 [ 3241.616567][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3241.616567][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3241.616567][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.616567][ T254] netlink_unicast+0x449/0x710 [ 3241.616567][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.616567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.616567][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.616567][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.616567][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.616567][ T254] [ 3241.618721][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.618721][ T254] netdev_get_by_index+0x5e/0x80 [ 3241.618721][ T254] fib6_nh_init+0x3d8/0x1580 [ 3241.618721][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3241.618721][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3241.618721][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3241.618721][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3241.618721][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3241.618721][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3241.618721][ T254] addrconf_dad_begin+0x310/0x670 [ 3241.618721][ T254] addrconf_dad_work+0x10b/0xab0 [ 3241.618721][ T254] process_one_work+0x84d/0x18a0 [ 3241.618721][ T254] worker_thread+0x587/0xd30 [ 3241.618721][ T254] kthread+0x28a/0x350 [ 3241.618721][ T254] ret_from_fork+0x31/0x70 [ 3241.618721][ T254] ret_from_fork_asm+0x1a/0x30 [ 3241.618721][ T254] [ 3241.620812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.620812][ T254] netdev_get_by_index+0x5e/0x80 [ 3241.620812][ T254] fib6_nh_init+0x3d8/0x1580 [ 3241.620812][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3241.620812][ T254] ip6_route_add+0x1c/0x140 [ 3241.620812][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3241.620812][ T254] inet6_addr_add+0x4f8/0xa40 [ 3241.620812][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3241.620812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3241.620812][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.620812][ T254] netlink_unicast+0x449/0x710 [ 3241.620812][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.620812][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.620812][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.620812][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.620812][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.620812][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3241.620812][ T254] [ 3241.623068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.623068][ T254] netdev_get_by_index+0x5e/0x80 [ 3241.623068][ T254] fib6_nh_init+0x3d8/0x1580 [ 3241.623068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3241.623068][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3241.623068][ T254] ipv6_add_addr+0x411/0x2000 [ 3241.623068][ T254] inet6_addr_add+0x30e/0xa40 [ 3241.623068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3241.623068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3241.623068][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.623068][ T254] netlink_unicast+0x449/0x710 [ 3241.623068][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.623068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.623068][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.623068][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.623068][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.623068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3241.623068][ T254] [ 3241.625426][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.625426][ T254] netdev_get_by_index+0x5e/0x80 [ 3241.625426][ T254] fib6_nh_init+0x3d8/0x1580 [ 3241.625426][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3241.625426][ T254] ip6_route_add+0x1c/0x140 [ 3241.625426][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3241.625426][ T254] addrconf_add_dev+0xe2/0x170 [ 3241.625426][ T254] inet6_addr_add+0x12f/0xa40 [ 3241.625426][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3241.625426][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3241.625426][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.625426][ T254] netlink_unicast+0x449/0x710 [ 3241.625426][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.625426][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.625426][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.625426][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.625426][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.625426][ T254] [ 3241.627621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.627621][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3241.627621][ T254] ipv6_find_idev+0x102/0x170 [ 3241.627621][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3241.627621][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3241.627621][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.627621][ T254] netlink_unicast+0x449/0x710 [ 3241.627621][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.627621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.627621][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.627621][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.627621][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.627621][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3241.627621][ T254] [ 3241.629343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3241.629343][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3241.629343][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3241.629343][ T254] ipv6_find_idev+0x102/0x170 [ 3241.629343][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3241.629343][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3241.629343][ T254] netlink_rcv_skb+0x130/0x360 [ 3241.629343][ T254] netlink_unicast+0x449/0x710 [ 3241.629343][ T254] netlink_sendmsg+0x723/0xbe0 [ 3241.629343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3241.629343][ T254] ___sys_sendmsg+0xee/0x170 [ 3241.629343][ T254] __sys_sendmsg+0xcd/0x170 [ 3241.629343][ T254] do_syscall_64+0xc6/0x1e0 [ 3241.629343][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3241.629343][ T254] [ 3251.871942][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3251.872539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.872539][ T254] dst_init+0x84/0x4a0 [ 3251.872539][ T254] dst_alloc+0x97/0x150 [ 3251.872539][ T254] ip6_dst_alloc+0x23/0x90 [ 3251.872539][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3251.872539][ T254] ip6_pol_route+0x56f/0x840 [ 3251.872539][ T254] fib6_rule_lookup+0x334/0x630 [ 3251.872539][ T254] ip6_route_output_flags+0x259/0x480 [ 3251.872539][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3251.872539][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3251.872539][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.872539][ T254] netlink_unicast+0x449/0x710 [ 3251.872539][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.872539][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.872539][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.872539][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.872539][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.872539][ T254] [ 3251.874717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.874717][ T254] netdev_get_by_index+0x5e/0x80 [ 3251.874717][ T254] fib6_nh_init+0x3d8/0x1580 [ 3251.874717][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3251.874717][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3251.874717][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3251.874717][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3251.874717][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3251.874717][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3251.874717][ T254] addrconf_dad_begin+0x310/0x670 [ 3251.874717][ T254] addrconf_dad_work+0x10b/0xab0 [ 3251.874717][ T254] process_one_work+0x84d/0x18a0 [ 3251.874717][ T254] worker_thread+0x587/0xd30 [ 3251.874717][ T254] kthread+0x28a/0x350 [ 3251.874717][ T254] ret_from_fork+0x31/0x70 [ 3251.874717][ T254] ret_from_fork_asm+0x1a/0x30 [ 3251.874717][ T254] [ 3251.876826][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.876826][ T254] netdev_get_by_index+0x5e/0x80 [ 3251.876826][ T254] fib6_nh_init+0x3d8/0x1580 [ 3251.876826][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3251.876826][ T254] ip6_route_add+0x1c/0x140 [ 3251.876826][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3251.876826][ T254] inet6_addr_add+0x4f8/0xa40 [ 3251.876826][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3251.876826][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3251.876826][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.876826][ T254] netlink_unicast+0x449/0x710 [ 3251.876826][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.876826][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.876826][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.876826][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.876826][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.876826][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3251.876826][ T254] [ 3251.879052][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.879052][ T254] netdev_get_by_index+0x5e/0x80 [ 3251.879052][ T254] fib6_nh_init+0x3d8/0x1580 [ 3251.879052][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3251.879052][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3251.879052][ T254] ipv6_add_addr+0x411/0x2000 [ 3251.879052][ T254] inet6_addr_add+0x30e/0xa40 [ 3251.879052][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3251.879052][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3251.879052][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.879052][ T254] netlink_unicast+0x449/0x710 [ 3251.879052][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.879052][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.879052][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.879052][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.879052][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.879052][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3251.879052][ T254] [ 3251.881280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.881280][ T254] netdev_get_by_index+0x5e/0x80 [ 3251.881280][ T254] fib6_nh_init+0x3d8/0x1580 [ 3251.881280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3251.881280][ T254] ip6_route_add+0x1c/0x140 [ 3251.881280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3251.881280][ T254] addrconf_add_dev+0xe2/0x170 [ 3251.881280][ T254] inet6_addr_add+0x12f/0xa40 [ 3251.881280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3251.881280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3251.881280][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.881280][ T254] netlink_unicast+0x449/0x710 [ 3251.881280][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.881280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.881280][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.881280][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.881280][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.881280][ T254] [ 3251.883491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.883491][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3251.883491][ T254] ipv6_find_idev+0x102/0x170 [ 3251.883491][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3251.883491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3251.883491][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.883491][ T254] netlink_unicast+0x449/0x710 [ 3251.883491][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.883491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.883491][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.883491][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.883491][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.883491][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3251.883491][ T254] [ 3251.885240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3251.885240][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3251.885240][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3251.885240][ T254] ipv6_find_idev+0x102/0x170 [ 3251.885240][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3251.885240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3251.885240][ T254] netlink_rcv_skb+0x130/0x360 [ 3251.885240][ T254] netlink_unicast+0x449/0x710 [ 3251.885240][ T254] netlink_sendmsg+0x723/0xbe0 [ 3251.885240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3251.885240][ T254] ___sys_sendmsg+0xee/0x170 [ 3251.885240][ T254] __sys_sendmsg+0xcd/0x170 [ 3251.885240][ T254] do_syscall_64+0xc6/0x1e0 [ 3251.885240][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3251.885240][ T254] [ 3261.959864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3261.960394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.960394][ T254] dst_init+0x84/0x4a0 [ 3261.960394][ T254] dst_alloc+0x97/0x150 [ 3261.960394][ T254] ip6_dst_alloc+0x23/0x90 [ 3261.960394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3261.960394][ T254] ip6_pol_route+0x56f/0x840 [ 3261.960394][ T254] fib6_rule_lookup+0x334/0x630 [ 3261.960394][ T254] ip6_route_output_flags+0x259/0x480 [ 3261.960394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3261.960394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3261.960394][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.960394][ T254] netlink_unicast+0x449/0x710 [ 3261.960394][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.960394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.960394][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.960394][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.960394][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.960394][ T254] [ 3261.962626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.962626][ T254] netdev_get_by_index+0x5e/0x80 [ 3261.962626][ T254] fib6_nh_init+0x3d8/0x1580 [ 3261.962626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3261.962626][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3261.962626][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3261.962626][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3261.962626][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3261.962626][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3261.962626][ T254] addrconf_dad_begin+0x310/0x670 [ 3261.962626][ T254] addrconf_dad_work+0x10b/0xab0 [ 3261.962626][ T254] process_one_work+0x84d/0x18a0 [ 3261.962626][ T254] worker_thread+0x587/0xd30 [ 3261.962626][ T254] kthread+0x28a/0x350 [ 3261.962626][ T254] ret_from_fork+0x31/0x70 [ 3261.962626][ T254] ret_from_fork_asm+0x1a/0x30 [ 3261.962626][ T254] [ 3261.964732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.964732][ T254] netdev_get_by_index+0x5e/0x80 [ 3261.964732][ T254] fib6_nh_init+0x3d8/0x1580 [ 3261.964732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3261.964732][ T254] ip6_route_add+0x1c/0x140 [ 3261.964732][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3261.964732][ T254] inet6_addr_add+0x4f8/0xa40 [ 3261.964732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.964732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.964732][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.964732][ T254] netlink_unicast+0x449/0x710 [ 3261.964732][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.964732][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.964732][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.964732][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.964732][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.964732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.964732][ T254] [ 3261.966956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.966956][ T254] netdev_get_by_index+0x5e/0x80 [ 3261.966956][ T254] fib6_nh_init+0x3d8/0x1580 [ 3261.966956][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3261.966956][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3261.966956][ T254] ipv6_add_addr+0x411/0x2000 [ 3261.966956][ T254] inet6_addr_add+0x30e/0xa40 [ 3261.966956][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.966956][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.966956][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.966956][ T254] netlink_unicast+0x449/0x710 [ 3261.966956][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.966956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.966956][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.966956][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.966956][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.966956][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.966956][ T254] [ 3261.969209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.969209][ T254] netdev_get_by_index+0x5e/0x80 [ 3261.969209][ T254] fib6_nh_init+0x3d8/0x1580 [ 3261.969209][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3261.969209][ T254] ip6_route_add+0x1c/0x140 [ 3261.969209][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3261.969209][ T254] addrconf_add_dev+0xe2/0x170 [ 3261.969209][ T254] inet6_addr_add+0x12f/0xa40 [ 3261.969209][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3261.969209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.969209][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.969209][ T254] netlink_unicast+0x449/0x710 [ 3261.969209][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.969209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.969209][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.969209][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.969209][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.969209][ T254] [ 3261.971358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.971358][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3261.971358][ T254] ipv6_find_idev+0x102/0x170 [ 3261.971358][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.971358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.971358][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.971358][ T254] netlink_unicast+0x449/0x710 [ 3261.971358][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.971358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.971358][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.971358][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.971358][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.971358][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.971358][ T254] [ 3261.973120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3261.973120][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3261.973120][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3261.973120][ T254] ipv6_find_idev+0x102/0x170 [ 3261.973120][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3261.973120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3261.973120][ T254] netlink_rcv_skb+0x130/0x360 [ 3261.973120][ T254] netlink_unicast+0x449/0x710 [ 3261.973120][ T254] netlink_sendmsg+0x723/0xbe0 [ 3261.973120][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3261.973120][ T254] ___sys_sendmsg+0xee/0x170 [ 3261.973120][ T254] __sys_sendmsg+0xcd/0x170 [ 3261.973120][ T254] do_syscall_64+0xc6/0x1e0 [ 3261.973120][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3261.973120][ T254] [ 3272.216000][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3272.216580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.216580][ T254] dst_init+0x84/0x4a0 [ 3272.216580][ T254] dst_alloc+0x97/0x150 [ 3272.216580][ T254] ip6_dst_alloc+0x23/0x90 [ 3272.216580][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3272.216580][ T254] ip6_pol_route+0x56f/0x840 [ 3272.216580][ T254] fib6_rule_lookup+0x334/0x630 [ 3272.216580][ T254] ip6_route_output_flags+0x259/0x480 [ 3272.216580][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3272.216580][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3272.216580][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.216580][ T254] netlink_unicast+0x449/0x710 [ 3272.216580][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.216580][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.216580][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.216580][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.216580][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.216580][ T254] [ 3272.218732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.218732][ T254] netdev_get_by_index+0x5e/0x80 [ 3272.218732][ T254] fib6_nh_init+0x3d8/0x1580 [ 3272.218732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3272.218732][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3272.218732][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3272.218732][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3272.218732][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3272.218732][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3272.218732][ T254] addrconf_dad_begin+0x310/0x670 [ 3272.218732][ T254] addrconf_dad_work+0x10b/0xab0 [ 3272.218732][ T254] process_one_work+0x84d/0x18a0 [ 3272.218732][ T254] worker_thread+0x587/0xd30 [ 3272.218732][ T254] kthread+0x28a/0x350 [ 3272.218732][ T254] ret_from_fork+0x31/0x70 [ 3272.218732][ T254] ret_from_fork_asm+0x1a/0x30 [ 3272.218732][ T254] [ 3272.220885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.220885][ T254] netdev_get_by_index+0x5e/0x80 [ 3272.220885][ T254] fib6_nh_init+0x3d8/0x1580 [ 3272.220885][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3272.220885][ T254] ip6_route_add+0x1c/0x140 [ 3272.220885][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3272.220885][ T254] inet6_addr_add+0x4f8/0xa40 [ 3272.220885][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3272.220885][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3272.220885][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.220885][ T254] netlink_unicast+0x449/0x710 [ 3272.220885][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.220885][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.220885][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.220885][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.220885][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.220885][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3272.220885][ T254] [ 3272.223165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.223165][ T254] netdev_get_by_index+0x5e/0x80 [ 3272.223165][ T254] fib6_nh_init+0x3d8/0x1580 [ 3272.223165][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3272.223165][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3272.223165][ T254] ipv6_add_addr+0x411/0x2000 [ 3272.223165][ T254] inet6_addr_add+0x30e/0xa40 [ 3272.223165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3272.223165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3272.223165][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.223165][ T254] netlink_unicast+0x449/0x710 [ 3272.223165][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.223165][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.223165][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.223165][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.223165][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.223165][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3272.223165][ T254] [ 3272.225347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.225347][ T254] netdev_get_by_index+0x5e/0x80 [ 3272.225347][ T254] fib6_nh_init+0x3d8/0x1580 [ 3272.225347][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3272.225347][ T254] ip6_route_add+0x1c/0x140 [ 3272.225347][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3272.225347][ T254] addrconf_add_dev+0xe2/0x170 [ 3272.225347][ T254] inet6_addr_add+0x12f/0xa40 [ 3272.225347][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3272.225347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3272.225347][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.225347][ T254] netlink_unicast+0x449/0x710 [ 3272.225347][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.225347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.225347][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.225347][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.225347][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.225347][ T254] [ 3272.227498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.227498][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3272.227498][ T254] ipv6_find_idev+0x102/0x170 [ 3272.227498][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3272.227498][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3272.227498][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.227498][ T254] netlink_unicast+0x449/0x710 [ 3272.227498][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.227498][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.227498][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.227498][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.227498][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.227498][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3272.227498][ T254] [ 3272.229174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3272.229174][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3272.229174][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3272.229174][ T254] ipv6_find_idev+0x102/0x170 [ 3272.229174][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3272.229174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3272.229174][ T254] netlink_rcv_skb+0x130/0x360 [ 3272.229174][ T254] netlink_unicast+0x449/0x710 [ 3272.229174][ T254] netlink_sendmsg+0x723/0xbe0 [ 3272.229174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3272.229174][ T254] ___sys_sendmsg+0xee/0x170 [ 3272.229174][ T254] __sys_sendmsg+0xcd/0x170 [ 3272.229174][ T254] do_syscall_64+0xc6/0x1e0 [ 3272.229174][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3272.229174][ T254] [ 3282.471996][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3282.472773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.472773][ T254] dst_init+0x84/0x4a0 [ 3282.472773][ T254] dst_alloc+0x97/0x150 [ 3282.472773][ T254] ip6_dst_alloc+0x23/0x90 [ 3282.472773][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3282.472773][ T254] ip6_pol_route+0x56f/0x840 [ 3282.472773][ T254] fib6_rule_lookup+0x334/0x630 [ 3282.472773][ T254] ip6_route_output_flags+0x259/0x480 [ 3282.472773][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3282.472773][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3282.472773][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.472773][ T254] netlink_unicast+0x449/0x710 [ 3282.472773][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.472773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.472773][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.472773][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.472773][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.472773][ T254] [ 3282.474929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.474929][ T254] netdev_get_by_index+0x5e/0x80 [ 3282.474929][ T254] fib6_nh_init+0x3d8/0x1580 [ 3282.474929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3282.474929][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3282.474929][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3282.474929][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3282.474929][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3282.474929][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3282.474929][ T254] addrconf_dad_begin+0x310/0x670 [ 3282.474929][ T254] addrconf_dad_work+0x10b/0xab0 [ 3282.474929][ T254] process_one_work+0x84d/0x18a0 [ 3282.474929][ T254] worker_thread+0x587/0xd30 [ 3282.474929][ T254] kthread+0x28a/0x350 [ 3282.474929][ T254] ret_from_fork+0x31/0x70 [ 3282.474929][ T254] ret_from_fork_asm+0x1a/0x30 [ 3282.474929][ T254] [ 3282.477036][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.477036][ T254] netdev_get_by_index+0x5e/0x80 [ 3282.477036][ T254] fib6_nh_init+0x3d8/0x1580 [ 3282.477036][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3282.477036][ T254] ip6_route_add+0x1c/0x140 [ 3282.477036][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3282.477036][ T254] inet6_addr_add+0x4f8/0xa40 [ 3282.477036][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3282.477036][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3282.477036][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.477036][ T254] netlink_unicast+0x449/0x710 [ 3282.477036][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.477036][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.477036][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.477036][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.477036][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.477036][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3282.477036][ T254] [ 3282.479226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.479226][ T254] netdev_get_by_index+0x5e/0x80 [ 3282.479226][ T254] fib6_nh_init+0x3d8/0x1580 [ 3282.479226][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3282.479226][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3282.479226][ T254] ipv6_add_addr+0x411/0x2000 [ 3282.479226][ T254] inet6_addr_add+0x30e/0xa40 [ 3282.479226][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3282.479226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3282.479226][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.479226][ T254] netlink_unicast+0x449/0x710 [ 3282.479226][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.479226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.479226][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.479226][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.479226][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.479226][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3282.479226][ T254] [ 3282.481599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.481599][ T254] netdev_get_by_index+0x5e/0x80 [ 3282.481599][ T254] fib6_nh_init+0x3d8/0x1580 [ 3282.481599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3282.481599][ T254] ip6_route_add+0x1c/0x140 [ 3282.481599][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3282.481599][ T254] addrconf_add_dev+0xe2/0x170 [ 3282.481599][ T254] inet6_addr_add+0x12f/0xa40 [ 3282.481599][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3282.481599][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3282.481599][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.481599][ T254] netlink_unicast+0x449/0x710 [ 3282.481599][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.481599][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.481599][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.481599][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.481599][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.481599][ T254] [ 3282.483928][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.483928][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3282.483928][ T254] ipv6_find_idev+0x102/0x170 [ 3282.483928][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3282.483928][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3282.483928][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.483928][ T254] netlink_unicast+0x449/0x710 [ 3282.483928][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.483928][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.483928][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.483928][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.483928][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.483928][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3282.483928][ T254] [ 3282.485751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3282.485751][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3282.485751][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3282.485751][ T254] ipv6_find_idev+0x102/0x170 [ 3282.485751][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3282.485751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3282.485751][ T254] netlink_rcv_skb+0x130/0x360 [ 3282.485751][ T254] netlink_unicast+0x449/0x710 [ 3282.485751][ T254] netlink_sendmsg+0x723/0xbe0 [ 3282.485751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3282.485751][ T254] ___sys_sendmsg+0xee/0x170 [ 3282.485751][ T254] __sys_sendmsg+0xcd/0x170 [ 3282.485751][ T254] do_syscall_64+0xc6/0x1e0 [ 3282.485751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3282.485751][ T254] [ 3292.519924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3292.520823][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.520823][ T254] dst_init+0x84/0x4a0 [ 3292.520823][ T254] dst_alloc+0x97/0x150 [ 3292.520823][ T254] ip6_dst_alloc+0x23/0x90 [ 3292.520823][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3292.520823][ T254] ip6_pol_route+0x56f/0x840 [ 3292.520823][ T254] fib6_rule_lookup+0x334/0x630 [ 3292.520823][ T254] ip6_route_output_flags+0x259/0x480 [ 3292.520823][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3292.520823][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3292.520823][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.520823][ T254] netlink_unicast+0x449/0x710 [ 3292.520823][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.520823][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.520823][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.520823][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.520823][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.520823][ T254] [ 3292.523158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.523158][ T254] netdev_get_by_index+0x5e/0x80 [ 3292.523158][ T254] fib6_nh_init+0x3d8/0x1580 [ 3292.523158][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3292.523158][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3292.523158][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3292.523158][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3292.523158][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3292.523158][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3292.523158][ T254] addrconf_dad_begin+0x310/0x670 [ 3292.523158][ T254] addrconf_dad_work+0x10b/0xab0 [ 3292.523158][ T254] process_one_work+0x84d/0x18a0 [ 3292.523158][ T254] worker_thread+0x587/0xd30 [ 3292.523158][ T254] kthread+0x28a/0x350 [ 3292.523158][ T254] ret_from_fork+0x31/0x70 [ 3292.523158][ T254] ret_from_fork_asm+0x1a/0x30 [ 3292.523158][ T254] [ 3292.525449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.525449][ T254] netdev_get_by_index+0x5e/0x80 [ 3292.525449][ T254] fib6_nh_init+0x3d8/0x1580 [ 3292.525449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3292.525449][ T254] ip6_route_add+0x1c/0x140 [ 3292.525449][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3292.525449][ T254] inet6_addr_add+0x4f8/0xa40 [ 3292.525449][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3292.525449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3292.525449][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.525449][ T254] netlink_unicast+0x449/0x710 [ 3292.525449][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.525449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.525449][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.525449][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.525449][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.525449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3292.525449][ T254] [ 3292.527838][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.527838][ T254] netdev_get_by_index+0x5e/0x80 [ 3292.527838][ T254] fib6_nh_init+0x3d8/0x1580 [ 3292.527838][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3292.527838][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3292.527838][ T254] ipv6_add_addr+0x411/0x2000 [ 3292.527838][ T254] inet6_addr_add+0x30e/0xa40 [ 3292.527838][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3292.527838][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3292.527838][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.527838][ T254] netlink_unicast+0x449/0x710 [ 3292.527838][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.527838][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.527838][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.527838][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.527838][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.527838][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3292.527838][ T254] [ 3292.530206][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.530206][ T254] netdev_get_by_index+0x5e/0x80 [ 3292.530206][ T254] fib6_nh_init+0x3d8/0x1580 [ 3292.530206][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3292.530206][ T254] ip6_route_add+0x1c/0x140 [ 3292.530206][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3292.530206][ T254] addrconf_add_dev+0xe2/0x170 [ 3292.530206][ T254] inet6_addr_add+0x12f/0xa40 [ 3292.530206][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3292.530206][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3292.530206][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.530206][ T254] netlink_unicast+0x449/0x710 [ 3292.530206][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.530206][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.530206][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.530206][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.530206][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.530206][ T254] [ 3292.532526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.532526][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3292.532526][ T254] ipv6_find_idev+0x102/0x170 [ 3292.532526][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3292.532526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3292.532526][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.532526][ T254] netlink_unicast+0x449/0x710 [ 3292.532526][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.532526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.532526][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.532526][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.532526][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.532526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3292.532526][ T254] [ 3292.534332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3292.534332][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3292.534332][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3292.534332][ T254] ipv6_find_idev+0x102/0x170 [ 3292.534332][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3292.534332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3292.534332][ T254] netlink_rcv_skb+0x130/0x360 [ 3292.534332][ T254] netlink_unicast+0x449/0x710 [ 3292.534332][ T254] netlink_sendmsg+0x723/0xbe0 [ 3292.534332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3292.534332][ T254] ___sys_sendmsg+0xee/0x170 [ 3292.534332][ T254] __sys_sendmsg+0xcd/0x170 [ 3292.534332][ T254] do_syscall_64+0xc6/0x1e0 [ 3292.534332][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3292.534332][ T254] [ 3302.775922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3302.776540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.776540][ T254] dst_init+0x84/0x4a0 [ 3302.776540][ T254] dst_alloc+0x97/0x150 [ 3302.776540][ T254] ip6_dst_alloc+0x23/0x90 [ 3302.776540][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3302.776540][ T254] ip6_pol_route+0x56f/0x840 [ 3302.776540][ T254] fib6_rule_lookup+0x334/0x630 [ 3302.776540][ T254] ip6_route_output_flags+0x259/0x480 [ 3302.776540][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3302.776540][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3302.776540][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.776540][ T254] netlink_unicast+0x449/0x710 [ 3302.776540][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.776540][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.776540][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.776540][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.776540][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.776540][ T254] [ 3302.778821][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.778821][ T254] netdev_get_by_index+0x5e/0x80 [ 3302.778821][ T254] fib6_nh_init+0x3d8/0x1580 [ 3302.778821][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3302.778821][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3302.778821][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3302.778821][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3302.778821][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3302.778821][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3302.778821][ T254] addrconf_dad_begin+0x310/0x670 [ 3302.778821][ T254] addrconf_dad_work+0x10b/0xab0 [ 3302.778821][ T254] process_one_work+0x84d/0x18a0 [ 3302.778821][ T254] worker_thread+0x587/0xd30 [ 3302.778821][ T254] kthread+0x28a/0x350 [ 3302.778821][ T254] ret_from_fork+0x31/0x70 [ 3302.778821][ T254] ret_from_fork_asm+0x1a/0x30 [ 3302.778821][ T254] [ 3302.781016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.781016][ T254] netdev_get_by_index+0x5e/0x80 [ 3302.781016][ T254] fib6_nh_init+0x3d8/0x1580 [ 3302.781016][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3302.781016][ T254] ip6_route_add+0x1c/0x140 [ 3302.781016][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3302.781016][ T254] inet6_addr_add+0x4f8/0xa40 [ 3302.781016][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.781016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.781016][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.781016][ T254] netlink_unicast+0x449/0x710 [ 3302.781016][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.781016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.781016][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.781016][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.781016][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.781016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.781016][ T254] [ 3302.783383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.783383][ T254] netdev_get_by_index+0x5e/0x80 [ 3302.783383][ T254] fib6_nh_init+0x3d8/0x1580 [ 3302.783383][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3302.783383][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3302.783383][ T254] ipv6_add_addr+0x411/0x2000 [ 3302.783383][ T254] inet6_addr_add+0x30e/0xa40 [ 3302.783383][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.783383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.783383][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.783383][ T254] netlink_unicast+0x449/0x710 [ 3302.783383][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.783383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.783383][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.783383][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.783383][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.783383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.783383][ T254] [ 3302.785719][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.785719][ T254] netdev_get_by_index+0x5e/0x80 [ 3302.785719][ T254] fib6_nh_init+0x3d8/0x1580 [ 3302.785719][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3302.785719][ T254] ip6_route_add+0x1c/0x140 [ 3302.785719][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3302.785719][ T254] addrconf_add_dev+0xe2/0x170 [ 3302.785719][ T254] inet6_addr_add+0x12f/0xa40 [ 3302.785719][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3302.785719][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.785719][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.785719][ T254] netlink_unicast+0x449/0x710 [ 3302.785719][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.785719][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.785719][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.785719][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.785719][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.785719][ T254] [ 3302.788026][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.788026][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3302.788026][ T254] ipv6_find_idev+0x102/0x170 [ 3302.788026][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.788026][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.788026][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.788026][ T254] netlink_unicast+0x449/0x710 [ 3302.788026][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.788026][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.788026][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.788026][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.788026][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.788026][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.788026][ T254] [ 3302.789778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3302.789778][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3302.789778][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3302.789778][ T254] ipv6_find_idev+0x102/0x170 [ 3302.789778][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3302.789778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3302.789778][ T254] netlink_rcv_skb+0x130/0x360 [ 3302.789778][ T254] netlink_unicast+0x449/0x710 [ 3302.789778][ T254] netlink_sendmsg+0x723/0xbe0 [ 3302.789778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3302.789778][ T254] ___sys_sendmsg+0xee/0x170 [ 3302.789778][ T254] __sys_sendmsg+0xcd/0x170 [ 3302.789778][ T254] do_syscall_64+0xc6/0x1e0 [ 3302.789778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3302.789778][ T254] [ 3313.031867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3313.032608][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.032608][ T254] dst_init+0x84/0x4a0 [ 3313.032608][ T254] dst_alloc+0x97/0x150 [ 3313.032608][ T254] ip6_dst_alloc+0x23/0x90 [ 3313.032608][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3313.032608][ T254] ip6_pol_route+0x56f/0x840 [ 3313.032608][ T254] fib6_rule_lookup+0x334/0x630 [ 3313.032608][ T254] ip6_route_output_flags+0x259/0x480 [ 3313.032608][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3313.032608][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3313.032608][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.032608][ T254] netlink_unicast+0x449/0x710 [ 3313.032608][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.032608][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.032608][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.032608][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.032608][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.032608][ T254] [ 3313.034898][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.034898][ T254] netdev_get_by_index+0x5e/0x80 [ 3313.034898][ T254] fib6_nh_init+0x3d8/0x1580 [ 3313.034898][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3313.034898][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3313.034898][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3313.034898][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3313.034898][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3313.034898][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3313.034898][ T254] addrconf_dad_begin+0x310/0x670 [ 3313.034898][ T254] addrconf_dad_work+0x10b/0xab0 [ 3313.034898][ T254] process_one_work+0x84d/0x18a0 [ 3313.034898][ T254] worker_thread+0x587/0xd30 [ 3313.034898][ T254] kthread+0x28a/0x350 [ 3313.034898][ T254] ret_from_fork+0x31/0x70 [ 3313.034898][ T254] ret_from_fork_asm+0x1a/0x30 [ 3313.034898][ T254] [ 3313.037074][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.037074][ T254] netdev_get_by_index+0x5e/0x80 [ 3313.037074][ T254] fib6_nh_init+0x3d8/0x1580 [ 3313.037074][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3313.037074][ T254] ip6_route_add+0x1c/0x140 [ 3313.037074][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3313.037074][ T254] inet6_addr_add+0x4f8/0xa40 [ 3313.037074][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3313.037074][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3313.037074][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.037074][ T254] netlink_unicast+0x449/0x710 [ 3313.037074][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.037074][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.037074][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.037074][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.037074][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.037074][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3313.037074][ T254] [ 3313.039371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.039371][ T254] netdev_get_by_index+0x5e/0x80 [ 3313.039371][ T254] fib6_nh_init+0x3d8/0x1580 [ 3313.039371][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3313.039371][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3313.039371][ T254] ipv6_add_addr+0x411/0x2000 [ 3313.039371][ T254] inet6_addr_add+0x30e/0xa40 [ 3313.039371][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3313.039371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3313.039371][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.039371][ T254] netlink_unicast+0x449/0x710 [ 3313.039371][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.039371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.039371][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.039371][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.039371][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.039371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3313.039371][ T254] [ 3313.041716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.041716][ T254] netdev_get_by_index+0x5e/0x80 [ 3313.041716][ T254] fib6_nh_init+0x3d8/0x1580 [ 3313.041716][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3313.041716][ T254] ip6_route_add+0x1c/0x140 [ 3313.041716][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3313.041716][ T254] addrconf_add_dev+0xe2/0x170 [ 3313.041716][ T254] inet6_addr_add+0x12f/0xa40 [ 3313.041716][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3313.041716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3313.041716][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.041716][ T254] netlink_unicast+0x449/0x710 [ 3313.041716][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.041716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.041716][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.041716][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.041716][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.041716][ T254] [ 3313.044016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.044016][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3313.044016][ T254] ipv6_find_idev+0x102/0x170 [ 3313.044016][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3313.044016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3313.044016][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.044016][ T254] netlink_unicast+0x449/0x710 [ 3313.044016][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.044016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.044016][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.044016][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.044016][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.044016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3313.044016][ T254] [ 3313.045813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3313.045813][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3313.045813][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3313.045813][ T254] ipv6_find_idev+0x102/0x170 [ 3313.045813][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3313.045813][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3313.045813][ T254] netlink_rcv_skb+0x130/0x360 [ 3313.045813][ T254] netlink_unicast+0x449/0x710 [ 3313.045813][ T254] netlink_sendmsg+0x723/0xbe0 [ 3313.045813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3313.045813][ T254] ___sys_sendmsg+0xee/0x170 [ 3313.045813][ T254] __sys_sendmsg+0xcd/0x170 [ 3313.045813][ T254] do_syscall_64+0xc6/0x1e0 [ 3313.045813][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3313.045813][ T254] [ 3323.287912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3323.288540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.288540][ T254] dst_init+0x84/0x4a0 [ 3323.288540][ T254] dst_alloc+0x97/0x150 [ 3323.288540][ T254] ip6_dst_alloc+0x23/0x90 [ 3323.288540][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3323.288540][ T254] ip6_pol_route+0x56f/0x840 [ 3323.288540][ T254] fib6_rule_lookup+0x334/0x630 [ 3323.288540][ T254] ip6_route_output_flags+0x259/0x480 [ 3323.288540][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3323.288540][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3323.288540][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.288540][ T254] netlink_unicast+0x449/0x710 [ 3323.288540][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.288540][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.288540][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.288540][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.288540][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.288540][ T254] [ 3323.290819][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.290819][ T254] netdev_get_by_index+0x5e/0x80 [ 3323.290819][ T254] fib6_nh_init+0x3d8/0x1580 [ 3323.290819][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3323.290819][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3323.290819][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3323.290819][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3323.290819][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3323.290819][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3323.290819][ T254] addrconf_dad_begin+0x310/0x670 [ 3323.290819][ T254] addrconf_dad_work+0x10b/0xab0 [ 3323.290819][ T254] process_one_work+0x84d/0x18a0 [ 3323.290819][ T254] worker_thread+0x587/0xd30 [ 3323.290819][ T254] kthread+0x28a/0x350 [ 3323.290819][ T254] ret_from_fork+0x31/0x70 [ 3323.290819][ T254] ret_from_fork_asm+0x1a/0x30 [ 3323.290819][ T254] [ 3323.293102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.293102][ T254] netdev_get_by_index+0x5e/0x80 [ 3323.293102][ T254] fib6_nh_init+0x3d8/0x1580 [ 3323.293102][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3323.293102][ T254] ip6_route_add+0x1c/0x140 [ 3323.293102][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3323.293102][ T254] inet6_addr_add+0x4f8/0xa40 [ 3323.293102][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3323.293102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3323.293102][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.293102][ T254] netlink_unicast+0x449/0x710 [ 3323.293102][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.293102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.293102][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.293102][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.293102][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.293102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3323.293102][ T254] [ 3323.295451][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.295451][ T254] netdev_get_by_index+0x5e/0x80 [ 3323.295451][ T254] fib6_nh_init+0x3d8/0x1580 [ 3323.295451][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3323.295451][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3323.295451][ T254] ipv6_add_addr+0x411/0x2000 [ 3323.295451][ T254] inet6_addr_add+0x30e/0xa40 [ 3323.295451][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3323.295451][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3323.295451][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.295451][ T254] netlink_unicast+0x449/0x710 [ 3323.295451][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.295451][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.295451][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.295451][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.295451][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.295451][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3323.295451][ T254] [ 3323.297755][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.297755][ T254] netdev_get_by_index+0x5e/0x80 [ 3323.297755][ T254] fib6_nh_init+0x3d8/0x1580 [ 3323.297755][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3323.297755][ T254] ip6_route_add+0x1c/0x140 [ 3323.297755][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3323.297755][ T254] addrconf_add_dev+0xe2/0x170 [ 3323.297755][ T254] inet6_addr_add+0x12f/0xa40 [ 3323.297755][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3323.297755][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3323.297755][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.297755][ T254] netlink_unicast+0x449/0x710 [ 3323.297755][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.297755][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.297755][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.297755][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.297755][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.297755][ T254] [ 3323.300025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.300025][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3323.300025][ T254] ipv6_find_idev+0x102/0x170 [ 3323.300025][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3323.300025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3323.300025][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.300025][ T254] netlink_unicast+0x449/0x710 [ 3323.300025][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.300025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.300025][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.300025][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.300025][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.300025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3323.300025][ T254] [ 3323.301843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3323.301843][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3323.301843][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3323.301843][ T254] ipv6_find_idev+0x102/0x170 [ 3323.301843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3323.301843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3323.301843][ T254] netlink_rcv_skb+0x130/0x360 [ 3323.301843][ T254] netlink_unicast+0x449/0x710 [ 3323.301843][ T254] netlink_sendmsg+0x723/0xbe0 [ 3323.301843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3323.301843][ T254] ___sys_sendmsg+0xee/0x170 [ 3323.301843][ T254] __sys_sendmsg+0xcd/0x170 [ 3323.301843][ T254] do_syscall_64+0xc6/0x1e0 [ 3323.301843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3323.301843][ T254] [ 3333.543910][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3333.544567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.544567][ T254] dst_init+0x84/0x4a0 [ 3333.544567][ T254] dst_alloc+0x97/0x150 [ 3333.544567][ T254] ip6_dst_alloc+0x23/0x90 [ 3333.544567][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3333.544567][ T254] ip6_pol_route+0x56f/0x840 [ 3333.544567][ T254] fib6_rule_lookup+0x334/0x630 [ 3333.544567][ T254] ip6_route_output_flags+0x259/0x480 [ 3333.544567][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3333.544567][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3333.544567][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.544567][ T254] netlink_unicast+0x449/0x710 [ 3333.544567][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.544567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.544567][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.544567][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.544567][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.544567][ T254] [ 3333.546776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.546776][ T254] netdev_get_by_index+0x5e/0x80 [ 3333.546776][ T254] fib6_nh_init+0x3d8/0x1580 [ 3333.546776][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3333.546776][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3333.546776][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3333.546776][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3333.546776][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3333.546776][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3333.546776][ T254] addrconf_dad_begin+0x310/0x670 [ 3333.546776][ T254] addrconf_dad_work+0x10b/0xab0 [ 3333.546776][ T254] process_one_work+0x84d/0x18a0 [ 3333.546776][ T254] worker_thread+0x587/0xd30 [ 3333.546776][ T254] kthread+0x28a/0x350 [ 3333.546776][ T254] ret_from_fork+0x31/0x70 [ 3333.546776][ T254] ret_from_fork_asm+0x1a/0x30 [ 3333.546776][ T254] [ 3333.548928][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.548928][ T254] netdev_get_by_index+0x5e/0x80 [ 3333.548928][ T254] fib6_nh_init+0x3d8/0x1580 [ 3333.548928][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3333.548928][ T254] ip6_route_add+0x1c/0x140 [ 3333.548928][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3333.548928][ T254] inet6_addr_add+0x4f8/0xa40 [ 3333.548928][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3333.548928][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3333.548928][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.548928][ T254] netlink_unicast+0x449/0x710 [ 3333.548928][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.548928][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.548928][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.548928][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.548928][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.548928][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3333.548928][ T254] [ 3333.551195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.551195][ T254] netdev_get_by_index+0x5e/0x80 [ 3333.551195][ T254] fib6_nh_init+0x3d8/0x1580 [ 3333.551195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3333.551195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3333.551195][ T254] ipv6_add_addr+0x411/0x2000 [ 3333.551195][ T254] inet6_addr_add+0x30e/0xa40 [ 3333.551195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3333.551195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3333.551195][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.551195][ T254] netlink_unicast+0x449/0x710 [ 3333.551195][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.551195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.551195][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.551195][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.551195][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.551195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3333.551195][ T254] [ 3333.553448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.553448][ T254] netdev_get_by_index+0x5e/0x80 [ 3333.553448][ T254] fib6_nh_init+0x3d8/0x1580 [ 3333.553448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3333.553448][ T254] ip6_route_add+0x1c/0x140 [ 3333.553448][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3333.553448][ T254] addrconf_add_dev+0xe2/0x170 [ 3333.553448][ T254] inet6_addr_add+0x12f/0xa40 [ 3333.553448][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3333.553448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3333.553448][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.553448][ T254] netlink_unicast+0x449/0x710 [ 3333.553448][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.553448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.553448][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.553448][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.553448][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.553448][ T254] [ 3333.555663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.555663][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3333.555663][ T254] ipv6_find_idev+0x102/0x170 [ 3333.555663][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3333.555663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3333.555663][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.555663][ T254] netlink_unicast+0x449/0x710 [ 3333.555663][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.555663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.555663][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.555663][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.555663][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.555663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3333.555663][ T254] [ 3333.557414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3333.557414][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3333.557414][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3333.557414][ T254] ipv6_find_idev+0x102/0x170 [ 3333.557414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3333.557414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3333.557414][ T254] netlink_rcv_skb+0x130/0x360 [ 3333.557414][ T254] netlink_unicast+0x449/0x710 [ 3333.557414][ T254] netlink_sendmsg+0x723/0xbe0 [ 3333.557414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3333.557414][ T254] ___sys_sendmsg+0xee/0x170 [ 3333.557414][ T254] __sys_sendmsg+0xcd/0x170 [ 3333.557414][ T254] do_syscall_64+0xc6/0x1e0 [ 3333.557414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3333.557414][ T254] [ 3343.615928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3343.616905][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.616905][ T254] dst_init+0x84/0x4a0 [ 3343.616905][ T254] dst_alloc+0x97/0x150 [ 3343.616905][ T254] ip6_dst_alloc+0x23/0x90 [ 3343.616905][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3343.616905][ T254] ip6_pol_route+0x56f/0x840 [ 3343.616905][ T254] fib6_rule_lookup+0x334/0x630 [ 3343.616905][ T254] ip6_route_output_flags+0x259/0x480 [ 3343.616905][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3343.616905][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3343.616905][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.616905][ T254] netlink_unicast+0x449/0x710 [ 3343.616905][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.616905][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.616905][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.616905][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.616905][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.616905][ T254] [ 3343.619065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.619065][ T254] netdev_get_by_index+0x5e/0x80 [ 3343.619065][ T254] fib6_nh_init+0x3d8/0x1580 [ 3343.619065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3343.619065][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3343.619065][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3343.619065][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3343.619065][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3343.619065][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3343.619065][ T254] addrconf_dad_begin+0x310/0x670 [ 3343.619065][ T254] addrconf_dad_work+0x10b/0xab0 [ 3343.619065][ T254] process_one_work+0x84d/0x18a0 [ 3343.619065][ T254] worker_thread+0x587/0xd30 [ 3343.619065][ T254] kthread+0x28a/0x350 [ 3343.619065][ T254] ret_from_fork+0x31/0x70 [ 3343.619065][ T254] ret_from_fork_asm+0x1a/0x30 [ 3343.619065][ T254] [ 3343.621160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.621160][ T254] netdev_get_by_index+0x5e/0x80 [ 3343.621160][ T254] fib6_nh_init+0x3d8/0x1580 [ 3343.621160][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3343.621160][ T254] ip6_route_add+0x1c/0x140 [ 3343.621160][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3343.621160][ T254] inet6_addr_add+0x4f8/0xa40 [ 3343.621160][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.621160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.621160][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.621160][ T254] netlink_unicast+0x449/0x710 [ 3343.621160][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.621160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.621160][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.621160][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.621160][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.621160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.621160][ T254] [ 3343.623429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.623429][ T254] netdev_get_by_index+0x5e/0x80 [ 3343.623429][ T254] fib6_nh_init+0x3d8/0x1580 [ 3343.623429][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3343.623429][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3343.623429][ T254] ipv6_add_addr+0x411/0x2000 [ 3343.623429][ T254] inet6_addr_add+0x30e/0xa40 [ 3343.623429][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.623429][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.623429][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.623429][ T254] netlink_unicast+0x449/0x710 [ 3343.623429][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.623429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.623429][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.623429][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.623429][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.623429][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.623429][ T254] [ 3343.625615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.625615][ T254] netdev_get_by_index+0x5e/0x80 [ 3343.625615][ T254] fib6_nh_init+0x3d8/0x1580 [ 3343.625615][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3343.625615][ T254] ip6_route_add+0x1c/0x140 [ 3343.625615][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3343.625615][ T254] addrconf_add_dev+0xe2/0x170 [ 3343.625615][ T254] inet6_addr_add+0x12f/0xa40 [ 3343.625615][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3343.625615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.625615][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.625615][ T254] netlink_unicast+0x449/0x710 [ 3343.625615][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.625615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.625615][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.625615][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.625615][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.625615][ T254] [ 3343.627822][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.627822][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3343.627822][ T254] ipv6_find_idev+0x102/0x170 [ 3343.627822][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.627822][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.627822][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.627822][ T254] netlink_unicast+0x449/0x710 [ 3343.627822][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.627822][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.627822][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.627822][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.627822][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.627822][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.627822][ T254] [ 3343.629547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3343.629547][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3343.629547][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3343.629547][ T254] ipv6_find_idev+0x102/0x170 [ 3343.629547][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3343.629547][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3343.629547][ T254] netlink_rcv_skb+0x130/0x360 [ 3343.629547][ T254] netlink_unicast+0x449/0x710 [ 3343.629547][ T254] netlink_sendmsg+0x723/0xbe0 [ 3343.629547][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3343.629547][ T254] ___sys_sendmsg+0xee/0x170 [ 3343.629547][ T254] __sys_sendmsg+0xcd/0x170 [ 3343.629547][ T254] do_syscall_64+0xc6/0x1e0 [ 3343.629547][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3343.629547][ T254] [ 3353.807935][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3353.808648][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.808648][ T254] dst_init+0x84/0x4a0 [ 3353.808648][ T254] dst_alloc+0x97/0x150 [ 3353.808648][ T254] ip6_dst_alloc+0x23/0x90 [ 3353.808648][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3353.808648][ T254] ip6_pol_route+0x56f/0x840 [ 3353.808648][ T254] fib6_rule_lookup+0x334/0x630 [ 3353.808648][ T254] ip6_route_output_flags+0x259/0x480 [ 3353.808648][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3353.808648][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3353.808648][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.808648][ T254] netlink_unicast+0x449/0x710 [ 3353.808648][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.808648][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.808648][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.808648][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.808648][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.808648][ T254] [ 3353.810820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.810820][ T254] netdev_get_by_index+0x5e/0x80 [ 3353.810820][ T254] fib6_nh_init+0x3d8/0x1580 [ 3353.810820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3353.810820][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3353.810820][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3353.810820][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3353.810820][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3353.810820][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3353.810820][ T254] addrconf_dad_begin+0x310/0x670 [ 3353.810820][ T254] addrconf_dad_work+0x10b/0xab0 [ 3353.810820][ T254] process_one_work+0x84d/0x18a0 [ 3353.810820][ T254] worker_thread+0x587/0xd30 [ 3353.810820][ T254] kthread+0x28a/0x350 [ 3353.810820][ T254] ret_from_fork+0x31/0x70 [ 3353.810820][ T254] ret_from_fork_asm+0x1a/0x30 [ 3353.810820][ T254] [ 3353.812994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.812994][ T254] netdev_get_by_index+0x5e/0x80 [ 3353.812994][ T254] fib6_nh_init+0x3d8/0x1580 [ 3353.812994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3353.812994][ T254] ip6_route_add+0x1c/0x140 [ 3353.812994][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3353.812994][ T254] inet6_addr_add+0x4f8/0xa40 [ 3353.812994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.812994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.812994][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.812994][ T254] netlink_unicast+0x449/0x710 [ 3353.812994][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.812994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.812994][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.812994][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.812994][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.812994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.812994][ T254] [ 3353.815232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.815232][ T254] netdev_get_by_index+0x5e/0x80 [ 3353.815232][ T254] fib6_nh_init+0x3d8/0x1580 [ 3353.815232][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3353.815232][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3353.815232][ T254] ipv6_add_addr+0x411/0x2000 [ 3353.815232][ T254] inet6_addr_add+0x30e/0xa40 [ 3353.815232][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.815232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.815232][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.815232][ T254] netlink_unicast+0x449/0x710 [ 3353.815232][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.815232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.815232][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.815232][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.815232][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.815232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.815232][ T254] [ 3353.817467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.817467][ T254] netdev_get_by_index+0x5e/0x80 [ 3353.817467][ T254] fib6_nh_init+0x3d8/0x1580 [ 3353.817467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3353.817467][ T254] ip6_route_add+0x1c/0x140 [ 3353.817467][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3353.817467][ T254] addrconf_add_dev+0xe2/0x170 [ 3353.817467][ T254] inet6_addr_add+0x12f/0xa40 [ 3353.817467][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3353.817467][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.817467][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.817467][ T254] netlink_unicast+0x449/0x710 [ 3353.817467][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.817467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.817467][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.817467][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.817467][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.817467][ T254] [ 3353.819615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.819615][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3353.819615][ T254] ipv6_find_idev+0x102/0x170 [ 3353.819615][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.819615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.819615][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.819615][ T254] netlink_unicast+0x449/0x710 [ 3353.819615][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.819615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.819615][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.819615][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.819615][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.819615][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.819615][ T254] [ 3353.821308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3353.821308][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3353.821308][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3353.821308][ T254] ipv6_find_idev+0x102/0x170 [ 3353.821308][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3353.821308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3353.821308][ T254] netlink_rcv_skb+0x130/0x360 [ 3353.821308][ T254] netlink_unicast+0x449/0x710 [ 3353.821308][ T254] netlink_sendmsg+0x723/0xbe0 [ 3353.821308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3353.821308][ T254] ___sys_sendmsg+0xee/0x170 [ 3353.821308][ T254] __sys_sendmsg+0xcd/0x170 [ 3353.821308][ T254] do_syscall_64+0xc6/0x1e0 [ 3353.821308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3353.821308][ T254] [ 3364.063909][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3364.064620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.064620][ T254] dst_init+0x84/0x4a0 [ 3364.064620][ T254] dst_alloc+0x97/0x150 [ 3364.064620][ T254] ip6_dst_alloc+0x23/0x90 [ 3364.064620][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3364.064620][ T254] ip6_pol_route+0x56f/0x840 [ 3364.064620][ T254] fib6_rule_lookup+0x334/0x630 [ 3364.064620][ T254] ip6_route_output_flags+0x259/0x480 [ 3364.064620][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3364.064620][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3364.064620][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.064620][ T254] netlink_unicast+0x449/0x710 [ 3364.064620][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.064620][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.064620][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.064620][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.064620][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.064620][ T254] [ 3364.066771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.066771][ T254] netdev_get_by_index+0x5e/0x80 [ 3364.066771][ T254] fib6_nh_init+0x3d8/0x1580 [ 3364.066771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3364.066771][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3364.066771][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3364.066771][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3364.066771][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3364.066771][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3364.066771][ T254] addrconf_dad_begin+0x310/0x670 [ 3364.066771][ T254] addrconf_dad_work+0x10b/0xab0 [ 3364.066771][ T254] process_one_work+0x84d/0x18a0 [ 3364.066771][ T254] worker_thread+0x587/0xd30 [ 3364.066771][ T254] kthread+0x28a/0x350 [ 3364.066771][ T254] ret_from_fork+0x31/0x70 [ 3364.066771][ T254] ret_from_fork_asm+0x1a/0x30 [ 3364.066771][ T254] [ 3364.068871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.068871][ T254] netdev_get_by_index+0x5e/0x80 [ 3364.068871][ T254] fib6_nh_init+0x3d8/0x1580 [ 3364.068871][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3364.068871][ T254] ip6_route_add+0x1c/0x140 [ 3364.068871][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3364.068871][ T254] inet6_addr_add+0x4f8/0xa40 [ 3364.068871][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3364.068871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3364.068871][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.068871][ T254] netlink_unicast+0x449/0x710 [ 3364.068871][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.068871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.068871][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.068871][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.068871][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.068871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3364.068871][ T254] [ 3364.071105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.071105][ T254] netdev_get_by_index+0x5e/0x80 [ 3364.071105][ T254] fib6_nh_init+0x3d8/0x1580 [ 3364.071105][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3364.071105][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3364.071105][ T254] ipv6_add_addr+0x411/0x2000 [ 3364.071105][ T254] inet6_addr_add+0x30e/0xa40 [ 3364.071105][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3364.071105][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3364.071105][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.071105][ T254] netlink_unicast+0x449/0x710 [ 3364.071105][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.071105][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.071105][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.071105][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.071105][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.071105][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3364.071105][ T254] [ 3364.073350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.073350][ T254] netdev_get_by_index+0x5e/0x80 [ 3364.073350][ T254] fib6_nh_init+0x3d8/0x1580 [ 3364.073350][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3364.073350][ T254] ip6_route_add+0x1c/0x140 [ 3364.073350][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3364.073350][ T254] addrconf_add_dev+0xe2/0x170 [ 3364.073350][ T254] inet6_addr_add+0x12f/0xa40 [ 3364.073350][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3364.073350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3364.073350][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.073350][ T254] netlink_unicast+0x449/0x710 [ 3364.073350][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.073350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.073350][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.073350][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.073350][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.073350][ T254] [ 3364.075494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.075494][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3364.075494][ T254] ipv6_find_idev+0x102/0x170 [ 3364.075494][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3364.075494][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3364.075494][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.075494][ T254] netlink_unicast+0x449/0x710 [ 3364.075494][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.075494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.075494][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.075494][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.075494][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.075494][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3364.075494][ T254] [ 3364.077197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3364.077197][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3364.077197][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3364.077197][ T254] ipv6_find_idev+0x102/0x170 [ 3364.077197][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3364.077197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3364.077197][ T254] netlink_rcv_skb+0x130/0x360 [ 3364.077197][ T254] netlink_unicast+0x449/0x710 [ 3364.077197][ T254] netlink_sendmsg+0x723/0xbe0 [ 3364.077197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3364.077197][ T254] ___sys_sendmsg+0xee/0x170 [ 3364.077197][ T254] __sys_sendmsg+0xcd/0x170 [ 3364.077197][ T254] do_syscall_64+0xc6/0x1e0 [ 3364.077197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3364.077197][ T254] [ 3374.319907][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3374.320734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.320734][ T254] dst_init+0x84/0x4a0 [ 3374.320734][ T254] dst_alloc+0x97/0x150 [ 3374.320734][ T254] ip6_dst_alloc+0x23/0x90 [ 3374.320734][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3374.320734][ T254] ip6_pol_route+0x56f/0x840 [ 3374.320734][ T254] fib6_rule_lookup+0x334/0x630 [ 3374.320734][ T254] ip6_route_output_flags+0x259/0x480 [ 3374.320734][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3374.320734][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3374.320734][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.320734][ T254] netlink_unicast+0x449/0x710 [ 3374.320734][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.320734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.320734][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.320734][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.320734][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.320734][ T254] [ 3374.322874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.322874][ T254] netdev_get_by_index+0x5e/0x80 [ 3374.322874][ T254] fib6_nh_init+0x3d8/0x1580 [ 3374.322874][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3374.322874][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3374.322874][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3374.322874][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3374.322874][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3374.322874][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3374.322874][ T254] addrconf_dad_begin+0x310/0x670 [ 3374.322874][ T254] addrconf_dad_work+0x10b/0xab0 [ 3374.322874][ T254] process_one_work+0x84d/0x18a0 [ 3374.322874][ T254] worker_thread+0x587/0xd30 [ 3374.322874][ T254] kthread+0x28a/0x350 [ 3374.322874][ T254] ret_from_fork+0x31/0x70 [ 3374.322874][ T254] ret_from_fork_asm+0x1a/0x30 [ 3374.322874][ T254] [ 3374.324984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.324984][ T254] netdev_get_by_index+0x5e/0x80 [ 3374.324984][ T254] fib6_nh_init+0x3d8/0x1580 [ 3374.324984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3374.324984][ T254] ip6_route_add+0x1c/0x140 [ 3374.324984][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3374.324984][ T254] inet6_addr_add+0x4f8/0xa40 [ 3374.324984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3374.324984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3374.324984][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.324984][ T254] netlink_unicast+0x449/0x710 [ 3374.324984][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.324984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.324984][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.324984][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.324984][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.324984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3374.324984][ T254] [ 3374.327266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.327266][ T254] netdev_get_by_index+0x5e/0x80 [ 3374.327266][ T254] fib6_nh_init+0x3d8/0x1580 [ 3374.327266][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3374.327266][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3374.327266][ T254] ipv6_add_addr+0x411/0x2000 [ 3374.327266][ T254] inet6_addr_add+0x30e/0xa40 [ 3374.327266][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3374.327266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3374.327266][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.327266][ T254] netlink_unicast+0x449/0x710 [ 3374.327266][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.327266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.327266][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.327266][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.327266][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.327266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3374.327266][ T254] [ 3374.329485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.329485][ T254] netdev_get_by_index+0x5e/0x80 [ 3374.329485][ T254] fib6_nh_init+0x3d8/0x1580 [ 3374.329485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3374.329485][ T254] ip6_route_add+0x1c/0x140 [ 3374.329485][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3374.329485][ T254] addrconf_add_dev+0xe2/0x170 [ 3374.329485][ T254] inet6_addr_add+0x12f/0xa40 [ 3374.329485][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3374.329485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3374.329485][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.329485][ T254] netlink_unicast+0x449/0x710 [ 3374.329485][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.329485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.329485][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.329485][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.329485][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.329485][ T254] [ 3374.331712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.331712][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3374.331712][ T254] ipv6_find_idev+0x102/0x170 [ 3374.331712][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3374.331712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3374.331712][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.331712][ T254] netlink_unicast+0x449/0x710 [ 3374.331712][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.331712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.331712][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.331712][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.331712][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.331712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3374.331712][ T254] [ 3374.333452][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3374.333452][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3374.333452][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3374.333452][ T254] ipv6_find_idev+0x102/0x170 [ 3374.333452][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3374.333452][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3374.333452][ T254] netlink_rcv_skb+0x130/0x360 [ 3374.333452][ T254] netlink_unicast+0x449/0x710 [ 3374.333452][ T254] netlink_sendmsg+0x723/0xbe0 [ 3374.333452][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3374.333452][ T254] ___sys_sendmsg+0xee/0x170 [ 3374.333452][ T254] __sys_sendmsg+0xcd/0x170 [ 3374.333452][ T254] do_syscall_64+0xc6/0x1e0 [ 3374.333452][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3374.333452][ T254] [ 3384.576001][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3384.576771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.576771][ T254] dst_init+0x84/0x4a0 [ 3384.576771][ T254] dst_alloc+0x97/0x150 [ 3384.576771][ T254] ip6_dst_alloc+0x23/0x90 [ 3384.576771][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3384.576771][ T254] ip6_pol_route+0x56f/0x840 [ 3384.576771][ T254] fib6_rule_lookup+0x334/0x630 [ 3384.576771][ T254] ip6_route_output_flags+0x259/0x480 [ 3384.576771][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3384.576771][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3384.576771][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.576771][ T254] netlink_unicast+0x449/0x710 [ 3384.576771][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.576771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.576771][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.576771][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.576771][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.576771][ T254] [ 3384.578850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.578850][ T254] netdev_get_by_index+0x5e/0x80 [ 3384.578850][ T254] fib6_nh_init+0x3d8/0x1580 [ 3384.578850][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3384.578850][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3384.578850][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3384.578850][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3384.578850][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3384.578850][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3384.578850][ T254] addrconf_dad_begin+0x310/0x670 [ 3384.578850][ T254] addrconf_dad_work+0x10b/0xab0 [ 3384.578850][ T254] process_one_work+0x84d/0x18a0 [ 3384.578850][ T254] worker_thread+0x587/0xd30 [ 3384.578850][ T254] kthread+0x28a/0x350 [ 3384.578850][ T254] ret_from_fork+0x31/0x70 [ 3384.578850][ T254] ret_from_fork_asm+0x1a/0x30 [ 3384.578850][ T254] [ 3384.580898][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.580898][ T254] netdev_get_by_index+0x5e/0x80 [ 3384.580898][ T254] fib6_nh_init+0x3d8/0x1580 [ 3384.580898][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3384.580898][ T254] ip6_route_add+0x1c/0x140 [ 3384.580898][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3384.580898][ T254] inet6_addr_add+0x4f8/0xa40 [ 3384.580898][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.580898][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.580898][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.580898][ T254] netlink_unicast+0x449/0x710 [ 3384.580898][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.580898][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.580898][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.580898][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.580898][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.580898][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.580898][ T254] [ 3384.583203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.583203][ T254] netdev_get_by_index+0x5e/0x80 [ 3384.583203][ T254] fib6_nh_init+0x3d8/0x1580 [ 3384.583203][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3384.583203][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3384.583203][ T254] ipv6_add_addr+0x411/0x2000 [ 3384.583203][ T254] inet6_addr_add+0x30e/0xa40 [ 3384.583203][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.583203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.583203][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.583203][ T254] netlink_unicast+0x449/0x710 [ 3384.583203][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.583203][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.583203][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.583203][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.583203][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.583203][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.583203][ T254] [ 3384.585475][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.585475][ T254] netdev_get_by_index+0x5e/0x80 [ 3384.585475][ T254] fib6_nh_init+0x3d8/0x1580 [ 3384.585475][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3384.585475][ T254] ip6_route_add+0x1c/0x140 [ 3384.585475][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3384.585475][ T254] addrconf_add_dev+0xe2/0x170 [ 3384.585475][ T254] inet6_addr_add+0x12f/0xa40 [ 3384.585475][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3384.585475][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.585475][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.585475][ T254] netlink_unicast+0x449/0x710 [ 3384.585475][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.585475][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.585475][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.585475][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.585475][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.585475][ T254] [ 3384.587707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.587707][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3384.587707][ T254] ipv6_find_idev+0x102/0x170 [ 3384.587707][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.587707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.587707][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.587707][ T254] netlink_unicast+0x449/0x710 [ 3384.587707][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.587707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.587707][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.587707][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.587707][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.587707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.587707][ T254] [ 3384.589452][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3384.589452][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3384.589452][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3384.589452][ T254] ipv6_find_idev+0x102/0x170 [ 3384.589452][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3384.589452][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3384.589452][ T254] netlink_rcv_skb+0x130/0x360 [ 3384.589452][ T254] netlink_unicast+0x449/0x710 [ 3384.589452][ T254] netlink_sendmsg+0x723/0xbe0 [ 3384.589452][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3384.589452][ T254] ___sys_sendmsg+0xee/0x170 [ 3384.589452][ T254] __sys_sendmsg+0xcd/0x170 [ 3384.589452][ T254] do_syscall_64+0xc6/0x1e0 [ 3384.589452][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3384.589452][ T254] [ 3394.591929][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3394.592477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.592477][ T254] dst_init+0x84/0x4a0 [ 3394.592477][ T254] dst_alloc+0x97/0x150 [ 3394.592477][ T254] ip6_dst_alloc+0x23/0x90 [ 3394.592477][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3394.592477][ T254] ip6_pol_route+0x56f/0x840 [ 3394.592477][ T254] fib6_rule_lookup+0x334/0x630 [ 3394.592477][ T254] ip6_route_output_flags+0x259/0x480 [ 3394.592477][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3394.592477][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3394.592477][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.592477][ T254] netlink_unicast+0x449/0x710 [ 3394.592477][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.592477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.592477][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.592477][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.592477][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.592477][ T254] [ 3394.594714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.594714][ T254] netdev_get_by_index+0x5e/0x80 [ 3394.594714][ T254] fib6_nh_init+0x3d8/0x1580 [ 3394.594714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3394.594714][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3394.594714][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3394.594714][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3394.594714][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3394.594714][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3394.594714][ T254] addrconf_dad_begin+0x310/0x670 [ 3394.594714][ T254] addrconf_dad_work+0x10b/0xab0 [ 3394.594714][ T254] process_one_work+0x84d/0x18a0 [ 3394.594714][ T254] worker_thread+0x587/0xd30 [ 3394.594714][ T254] kthread+0x28a/0x350 [ 3394.594714][ T254] ret_from_fork+0x31/0x70 [ 3394.594714][ T254] ret_from_fork_asm+0x1a/0x30 [ 3394.594714][ T254] [ 3394.596890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.596890][ T254] netdev_get_by_index+0x5e/0x80 [ 3394.596890][ T254] fib6_nh_init+0x3d8/0x1580 [ 3394.596890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3394.596890][ T254] ip6_route_add+0x1c/0x140 [ 3394.596890][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3394.596890][ T254] inet6_addr_add+0x4f8/0xa40 [ 3394.596890][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.596890][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.596890][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.596890][ T254] netlink_unicast+0x449/0x710 [ 3394.596890][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.596890][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.596890][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.596890][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.596890][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.596890][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.596890][ T254] [ 3394.599160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.599160][ T254] netdev_get_by_index+0x5e/0x80 [ 3394.599160][ T254] fib6_nh_init+0x3d8/0x1580 [ 3394.599160][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3394.599160][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3394.599160][ T254] ipv6_add_addr+0x411/0x2000 [ 3394.599160][ T254] inet6_addr_add+0x30e/0xa40 [ 3394.599160][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.599160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.599160][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.599160][ T254] netlink_unicast+0x449/0x710 [ 3394.599160][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.599160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.599160][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.599160][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.599160][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.599160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.599160][ T254] [ 3394.601454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.601454][ T254] netdev_get_by_index+0x5e/0x80 [ 3394.601454][ T254] fib6_nh_init+0x3d8/0x1580 [ 3394.601454][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3394.601454][ T254] ip6_route_add+0x1c/0x140 [ 3394.601454][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3394.601454][ T254] addrconf_add_dev+0xe2/0x170 [ 3394.601454][ T254] inet6_addr_add+0x12f/0xa40 [ 3394.601454][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3394.601454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.601454][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.601454][ T254] netlink_unicast+0x449/0x710 [ 3394.601454][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.601454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.601454][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.601454][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.601454][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.601454][ T254] [ 3394.603673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.603673][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3394.603673][ T254] ipv6_find_idev+0x102/0x170 [ 3394.603673][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.603673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.603673][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.603673][ T254] netlink_unicast+0x449/0x710 [ 3394.603673][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.603673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.603673][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.603673][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.603673][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.603673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.603673][ T254] [ 3394.605418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3394.605418][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3394.605418][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3394.605418][ T254] ipv6_find_idev+0x102/0x170 [ 3394.605418][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3394.605418][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3394.605418][ T254] netlink_rcv_skb+0x130/0x360 [ 3394.605418][ T254] netlink_unicast+0x449/0x710 [ 3394.605418][ T254] netlink_sendmsg+0x723/0xbe0 [ 3394.605418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3394.605418][ T254] ___sys_sendmsg+0xee/0x170 [ 3394.605418][ T254] __sys_sendmsg+0xcd/0x170 [ 3394.605418][ T254] do_syscall_64+0xc6/0x1e0 [ 3394.605418][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3394.605418][ T254] [ 3404.671922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3404.672553][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.672553][ T254] dst_init+0x84/0x4a0 [ 3404.672553][ T254] dst_alloc+0x97/0x150 [ 3404.672553][ T254] ip6_dst_alloc+0x23/0x90 [ 3404.672553][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3404.672553][ T254] ip6_pol_route+0x56f/0x840 [ 3404.672553][ T254] fib6_rule_lookup+0x334/0x630 [ 3404.672553][ T254] ip6_route_output_flags+0x259/0x480 [ 3404.672553][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3404.672553][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3404.672553][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.672553][ T254] netlink_unicast+0x449/0x710 [ 3404.672553][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.672553][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.672553][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.672553][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.672553][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.672553][ T254] [ 3404.674660][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.674660][ T254] netdev_get_by_index+0x5e/0x80 [ 3404.674660][ T254] fib6_nh_init+0x3d8/0x1580 [ 3404.674660][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3404.674660][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3404.674660][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3404.674660][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3404.674660][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3404.674660][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3404.674660][ T254] addrconf_dad_begin+0x310/0x670 [ 3404.674660][ T254] addrconf_dad_work+0x10b/0xab0 [ 3404.674660][ T254] process_one_work+0x84d/0x18a0 [ 3404.674660][ T254] worker_thread+0x587/0xd30 [ 3404.674660][ T254] kthread+0x28a/0x350 [ 3404.674660][ T254] ret_from_fork+0x31/0x70 [ 3404.674660][ T254] ret_from_fork_asm+0x1a/0x30 [ 3404.674660][ T254] [ 3404.676866][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.676866][ T254] netdev_get_by_index+0x5e/0x80 [ 3404.676866][ T254] fib6_nh_init+0x3d8/0x1580 [ 3404.676866][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3404.676866][ T254] ip6_route_add+0x1c/0x140 [ 3404.676866][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3404.676866][ T254] inet6_addr_add+0x4f8/0xa40 [ 3404.676866][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.676866][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.676866][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.676866][ T254] netlink_unicast+0x449/0x710 [ 3404.676866][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.676866][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.676866][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.676866][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.676866][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.676866][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.676866][ T254] [ 3404.679107][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.679107][ T254] netdev_get_by_index+0x5e/0x80 [ 3404.679107][ T254] fib6_nh_init+0x3d8/0x1580 [ 3404.679107][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3404.679107][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3404.679107][ T254] ipv6_add_addr+0x411/0x2000 [ 3404.679107][ T254] inet6_addr_add+0x30e/0xa40 [ 3404.679107][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.679107][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.679107][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.679107][ T254] netlink_unicast+0x449/0x710 [ 3404.679107][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.679107][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.679107][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.679107][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.679107][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.679107][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.679107][ T254] [ 3404.681396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.681396][ T254] netdev_get_by_index+0x5e/0x80 [ 3404.681396][ T254] fib6_nh_init+0x3d8/0x1580 [ 3404.681396][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3404.681396][ T254] ip6_route_add+0x1c/0x140 [ 3404.681396][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3404.681396][ T254] addrconf_add_dev+0xe2/0x170 [ 3404.681396][ T254] inet6_addr_add+0x12f/0xa40 [ 3404.681396][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3404.681396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.681396][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.681396][ T254] netlink_unicast+0x449/0x710 [ 3404.681396][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.681396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.681396][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.681396][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.681396][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.681396][ T254] [ 3404.683571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.683571][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3404.683571][ T254] ipv6_find_idev+0x102/0x170 [ 3404.683571][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.683571][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.683571][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.683571][ T254] netlink_unicast+0x449/0x710 [ 3404.683571][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.683571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.683571][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.683571][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.683571][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.683571][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.683571][ T254] [ 3404.685330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3404.685330][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3404.685330][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3404.685330][ T254] ipv6_find_idev+0x102/0x170 [ 3404.685330][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3404.685330][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3404.685330][ T254] netlink_rcv_skb+0x130/0x360 [ 3404.685330][ T254] netlink_unicast+0x449/0x710 [ 3404.685330][ T254] netlink_sendmsg+0x723/0xbe0 [ 3404.685330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3404.685330][ T254] ___sys_sendmsg+0xee/0x170 [ 3404.685330][ T254] __sys_sendmsg+0xcd/0x170 [ 3404.685330][ T254] do_syscall_64+0xc6/0x1e0 [ 3404.685330][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3404.685330][ T254] [ 3414.927917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3414.928813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.928813][ T254] dst_init+0x84/0x4a0 [ 3414.928813][ T254] dst_alloc+0x97/0x150 [ 3414.928813][ T254] ip6_dst_alloc+0x23/0x90 [ 3414.928813][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3414.928813][ T254] ip6_pol_route+0x56f/0x840 [ 3414.928813][ T254] fib6_rule_lookup+0x334/0x630 [ 3414.928813][ T254] ip6_route_output_flags+0x259/0x480 [ 3414.928813][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3414.928813][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3414.928813][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.928813][ T254] netlink_unicast+0x449/0x710 [ 3414.928813][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.928813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.928813][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.928813][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.928813][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.928813][ T254] [ 3414.930994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.930994][ T254] netdev_get_by_index+0x5e/0x80 [ 3414.930994][ T254] fib6_nh_init+0x3d8/0x1580 [ 3414.930994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3414.930994][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3414.930994][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3414.930994][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3414.930994][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3414.930994][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3414.930994][ T254] addrconf_dad_begin+0x310/0x670 [ 3414.930994][ T254] addrconf_dad_work+0x10b/0xab0 [ 3414.930994][ T254] process_one_work+0x84d/0x18a0 [ 3414.930994][ T254] worker_thread+0x587/0xd30 [ 3414.930994][ T254] kthread+0x28a/0x350 [ 3414.930994][ T254] ret_from_fork+0x31/0x70 [ 3414.930994][ T254] ret_from_fork_asm+0x1a/0x30 [ 3414.930994][ T254] [ 3414.933016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.933016][ T254] netdev_get_by_index+0x5e/0x80 [ 3414.933016][ T254] fib6_nh_init+0x3d8/0x1580 [ 3414.933016][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3414.933016][ T254] ip6_route_add+0x1c/0x140 [ 3414.933016][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3414.933016][ T254] inet6_addr_add+0x4f8/0xa40 [ 3414.933016][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.933016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.933016][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.933016][ T254] netlink_unicast+0x449/0x710 [ 3414.933016][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.933016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.933016][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.933016][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.933016][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.933016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.933016][ T254] [ 3414.935133][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.935133][ T254] netdev_get_by_index+0x5e/0x80 [ 3414.935133][ T254] fib6_nh_init+0x3d8/0x1580 [ 3414.935133][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3414.935133][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3414.935133][ T254] ipv6_add_addr+0x411/0x2000 [ 3414.935133][ T254] inet6_addr_add+0x30e/0xa40 [ 3414.935133][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.935133][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.935133][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.935133][ T254] netlink_unicast+0x449/0x710 [ 3414.935133][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.935133][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.935133][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.935133][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.935133][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.935133][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.935133][ T254] [ 3414.937294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.937294][ T254] netdev_get_by_index+0x5e/0x80 [ 3414.937294][ T254] fib6_nh_init+0x3d8/0x1580 [ 3414.937294][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3414.937294][ T254] ip6_route_add+0x1c/0x140 [ 3414.937294][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3414.937294][ T254] addrconf_add_dev+0xe2/0x170 [ 3414.937294][ T254] inet6_addr_add+0x12f/0xa40 [ 3414.937294][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3414.937294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.937294][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.937294][ T254] netlink_unicast+0x449/0x710 [ 3414.937294][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.937294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.937294][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.937294][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.937294][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.937294][ T254] [ 3414.939556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.939556][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3414.939556][ T254] ipv6_find_idev+0x102/0x170 [ 3414.939556][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.939556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.939556][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.939556][ T254] netlink_unicast+0x449/0x710 [ 3414.939556][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.939556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.939556][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.939556][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.939556][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.939556][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.939556][ T254] [ 3414.941330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3414.941330][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3414.941330][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3414.941330][ T254] ipv6_find_idev+0x102/0x170 [ 3414.941330][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3414.941330][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3414.941330][ T254] netlink_rcv_skb+0x130/0x360 [ 3414.941330][ T254] netlink_unicast+0x449/0x710 [ 3414.941330][ T254] netlink_sendmsg+0x723/0xbe0 [ 3414.941330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3414.941330][ T254] ___sys_sendmsg+0xee/0x170 [ 3414.941330][ T254] __sys_sendmsg+0xcd/0x170 [ 3414.941330][ T254] do_syscall_64+0xc6/0x1e0 [ 3414.941330][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3414.941330][ T254] [ 3425.183936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3425.184899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.184899][ T254] dst_init+0x84/0x4a0 [ 3425.184899][ T254] dst_alloc+0x97/0x150 [ 3425.184899][ T254] ip6_dst_alloc+0x23/0x90 [ 3425.184899][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3425.184899][ T254] ip6_pol_route+0x56f/0x840 [ 3425.184899][ T254] fib6_rule_lookup+0x334/0x630 [ 3425.184899][ T254] ip6_route_output_flags+0x259/0x480 [ 3425.184899][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3425.184899][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3425.184899][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.184899][ T254] netlink_unicast+0x449/0x710 [ 3425.184899][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.184899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.184899][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.184899][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.184899][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.184899][ T254] [ 3425.187103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.187103][ T254] netdev_get_by_index+0x5e/0x80 [ 3425.187103][ T254] fib6_nh_init+0x3d8/0x1580 [ 3425.187103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3425.187103][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3425.187103][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3425.187103][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3425.187103][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3425.187103][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3425.187103][ T254] addrconf_dad_begin+0x310/0x670 [ 3425.187103][ T254] addrconf_dad_work+0x10b/0xab0 [ 3425.187103][ T254] process_one_work+0x84d/0x18a0 [ 3425.187103][ T254] worker_thread+0x587/0xd30 [ 3425.187103][ T254] kthread+0x28a/0x350 [ 3425.187103][ T254] ret_from_fork+0x31/0x70 [ 3425.187103][ T254] ret_from_fork_asm+0x1a/0x30 [ 3425.187103][ T254] [ 3425.189295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.189295][ T254] netdev_get_by_index+0x5e/0x80 [ 3425.189295][ T254] fib6_nh_init+0x3d8/0x1580 [ 3425.189295][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3425.189295][ T254] ip6_route_add+0x1c/0x140 [ 3425.189295][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3425.189295][ T254] inet6_addr_add+0x4f8/0xa40 [ 3425.189295][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.189295][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.189295][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.189295][ T254] netlink_unicast+0x449/0x710 [ 3425.189295][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.189295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.189295][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.189295][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.189295][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.189295][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.189295][ T254] [ 3425.191633][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.191633][ T254] netdev_get_by_index+0x5e/0x80 [ 3425.191633][ T254] fib6_nh_init+0x3d8/0x1580 [ 3425.191633][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3425.191633][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3425.191633][ T254] ipv6_add_addr+0x411/0x2000 [ 3425.191633][ T254] inet6_addr_add+0x30e/0xa40 [ 3425.191633][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.191633][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.191633][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.191633][ T254] netlink_unicast+0x449/0x710 [ 3425.191633][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.191633][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.191633][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.191633][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.191633][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.191633][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.191633][ T254] [ 3425.193896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.193896][ T254] netdev_get_by_index+0x5e/0x80 [ 3425.193896][ T254] fib6_nh_init+0x3d8/0x1580 [ 3425.193896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3425.193896][ T254] ip6_route_add+0x1c/0x140 [ 3425.193896][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3425.193896][ T254] addrconf_add_dev+0xe2/0x170 [ 3425.193896][ T254] inet6_addr_add+0x12f/0xa40 [ 3425.193896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3425.193896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.193896][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.193896][ T254] netlink_unicast+0x449/0x710 [ 3425.193896][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.193896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.193896][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.193896][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.193896][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.193896][ T254] [ 3425.196097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.196097][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3425.196097][ T254] ipv6_find_idev+0x102/0x170 [ 3425.196097][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.196097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.196097][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.196097][ T254] netlink_unicast+0x449/0x710 [ 3425.196097][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.196097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.196097][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.196097][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.196097][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.196097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.196097][ T254] [ 3425.197938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3425.197938][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3425.197938][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3425.197938][ T254] ipv6_find_idev+0x102/0x170 [ 3425.197938][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3425.197938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3425.197938][ T254] netlink_rcv_skb+0x130/0x360 [ 3425.197938][ T254] netlink_unicast+0x449/0x710 [ 3425.197938][ T254] netlink_sendmsg+0x723/0xbe0 [ 3425.197938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3425.197938][ T254] ___sys_sendmsg+0xee/0x170 [ 3425.197938][ T254] __sys_sendmsg+0xcd/0x170 [ 3425.197938][ T254] do_syscall_64+0xc6/0x1e0 [ 3425.197938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3425.197938][ T254] [ 3435.439915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3435.440892][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.440892][ T254] dst_init+0x84/0x4a0 [ 3435.440892][ T254] dst_alloc+0x97/0x150 [ 3435.440892][ T254] ip6_dst_alloc+0x23/0x90 [ 3435.440892][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3435.440892][ T254] ip6_pol_route+0x56f/0x840 [ 3435.440892][ T254] fib6_rule_lookup+0x334/0x630 [ 3435.440892][ T254] ip6_route_output_flags+0x259/0x480 [ 3435.440892][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3435.440892][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3435.440892][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.440892][ T254] netlink_unicast+0x449/0x710 [ 3435.440892][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.440892][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.440892][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.440892][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.440892][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.440892][ T254] [ 3435.443005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.443005][ T254] netdev_get_by_index+0x5e/0x80 [ 3435.443005][ T254] fib6_nh_init+0x3d8/0x1580 [ 3435.443005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3435.443005][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3435.443005][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3435.443005][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3435.443005][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3435.443005][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3435.443005][ T254] addrconf_dad_begin+0x310/0x670 [ 3435.443005][ T254] addrconf_dad_work+0x10b/0xab0 [ 3435.443005][ T254] process_one_work+0x84d/0x18a0 [ 3435.443005][ T254] worker_thread+0x587/0xd30 [ 3435.443005][ T254] kthread+0x28a/0x350 [ 3435.443005][ T254] ret_from_fork+0x31/0x70 [ 3435.443005][ T254] ret_from_fork_asm+0x1a/0x30 [ 3435.443005][ T254] [ 3435.445185][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.445185][ T254] netdev_get_by_index+0x5e/0x80 [ 3435.445185][ T254] fib6_nh_init+0x3d8/0x1580 [ 3435.445185][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3435.445185][ T254] ip6_route_add+0x1c/0x140 [ 3435.445185][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3435.445185][ T254] inet6_addr_add+0x4f8/0xa40 [ 3435.445185][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.445185][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.445185][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.445185][ T254] netlink_unicast+0x449/0x710 [ 3435.445185][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.445185][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.445185][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.445185][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.445185][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.445185][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.445185][ T254] [ 3435.447470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.447470][ T254] netdev_get_by_index+0x5e/0x80 [ 3435.447470][ T254] fib6_nh_init+0x3d8/0x1580 [ 3435.447470][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3435.447470][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3435.447470][ T254] ipv6_add_addr+0x411/0x2000 [ 3435.447470][ T254] inet6_addr_add+0x30e/0xa40 [ 3435.447470][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.447470][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.447470][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.447470][ T254] netlink_unicast+0x449/0x710 [ 3435.447470][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.447470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.447470][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.447470][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.447470][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.447470][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.447470][ T254] [ 3435.449774][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.449774][ T254] netdev_get_by_index+0x5e/0x80 [ 3435.449774][ T254] fib6_nh_init+0x3d8/0x1580 [ 3435.449774][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3435.449774][ T254] ip6_route_add+0x1c/0x140 [ 3435.449774][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3435.449774][ T254] addrconf_add_dev+0xe2/0x170 [ 3435.449774][ T254] inet6_addr_add+0x12f/0xa40 [ 3435.449774][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3435.449774][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.449774][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.449774][ T254] netlink_unicast+0x449/0x710 [ 3435.449774][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.449774][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.449774][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.449774][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.449774][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.449774][ T254] [ 3435.452006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.452006][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3435.452006][ T254] ipv6_find_idev+0x102/0x170 [ 3435.452006][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.452006][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.452006][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.452006][ T254] netlink_unicast+0x449/0x710 [ 3435.452006][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.452006][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.452006][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.452006][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.452006][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.452006][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.452006][ T254] [ 3435.454285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3435.454285][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3435.454285][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3435.454285][ T254] ipv6_find_idev+0x102/0x170 [ 3435.454285][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3435.454285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3435.454285][ T254] netlink_rcv_skb+0x130/0x360 [ 3435.454285][ T254] netlink_unicast+0x449/0x710 [ 3435.454285][ T254] netlink_sendmsg+0x723/0xbe0 [ 3435.454285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3435.454285][ T254] ___sys_sendmsg+0xee/0x170 [ 3435.454285][ T254] __sys_sendmsg+0xcd/0x170 [ 3435.454285][ T254] do_syscall_64+0xc6/0x1e0 [ 3435.454285][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3435.454285][ T254] [ 3445.695938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3445.696604][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.696604][ T254] dst_init+0x84/0x4a0 [ 3445.696604][ T254] dst_alloc+0x97/0x150 [ 3445.696604][ T254] ip6_dst_alloc+0x23/0x90 [ 3445.696604][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3445.696604][ T254] ip6_pol_route+0x56f/0x840 [ 3445.696604][ T254] fib6_rule_lookup+0x334/0x630 [ 3445.696604][ T254] ip6_route_output_flags+0x259/0x480 [ 3445.696604][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3445.696604][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3445.696604][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.696604][ T254] netlink_unicast+0x449/0x710 [ 3445.696604][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.696604][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.696604][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.696604][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.696604][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.696604][ T254] [ 3445.698727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.698727][ T254] netdev_get_by_index+0x5e/0x80 [ 3445.698727][ T254] fib6_nh_init+0x3d8/0x1580 [ 3445.698727][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3445.698727][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3445.698727][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3445.698727][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3445.698727][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3445.698727][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3445.698727][ T254] addrconf_dad_begin+0x310/0x670 [ 3445.698727][ T254] addrconf_dad_work+0x10b/0xab0 [ 3445.698727][ T254] process_one_work+0x84d/0x18a0 [ 3445.698727][ T254] worker_thread+0x587/0xd30 [ 3445.698727][ T254] kthread+0x28a/0x350 [ 3445.698727][ T254] ret_from_fork+0x31/0x70 [ 3445.698727][ T254] ret_from_fork_asm+0x1a/0x30 [ 3445.698727][ T254] [ 3445.700868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.700868][ T254] netdev_get_by_index+0x5e/0x80 [ 3445.700868][ T254] fib6_nh_init+0x3d8/0x1580 [ 3445.700868][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3445.700868][ T254] ip6_route_add+0x1c/0x140 [ 3445.700868][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3445.700868][ T254] inet6_addr_add+0x4f8/0xa40 [ 3445.700868][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.700868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.700868][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.700868][ T254] netlink_unicast+0x449/0x710 [ 3445.700868][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.700868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.700868][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.700868][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.700868][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.700868][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.700868][ T254] [ 3445.703095][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.703095][ T254] netdev_get_by_index+0x5e/0x80 [ 3445.703095][ T254] fib6_nh_init+0x3d8/0x1580 [ 3445.703095][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3445.703095][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3445.703095][ T254] ipv6_add_addr+0x411/0x2000 [ 3445.703095][ T254] inet6_addr_add+0x30e/0xa40 [ 3445.703095][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.703095][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.703095][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.703095][ T254] netlink_unicast+0x449/0x710 [ 3445.703095][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.703095][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.703095][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.703095][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.703095][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.703095][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.703095][ T254] [ 3445.705344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.705344][ T254] netdev_get_by_index+0x5e/0x80 [ 3445.705344][ T254] fib6_nh_init+0x3d8/0x1580 [ 3445.705344][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3445.705344][ T254] ip6_route_add+0x1c/0x140 [ 3445.705344][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3445.705344][ T254] addrconf_add_dev+0xe2/0x170 [ 3445.705344][ T254] inet6_addr_add+0x12f/0xa40 [ 3445.705344][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3445.705344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.705344][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.705344][ T254] netlink_unicast+0x449/0x710 [ 3445.705344][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.705344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.705344][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.705344][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.705344][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.705344][ T254] [ 3445.707507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.707507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3445.707507][ T254] ipv6_find_idev+0x102/0x170 [ 3445.707507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.707507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.707507][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.707507][ T254] netlink_unicast+0x449/0x710 [ 3445.707507][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.707507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.707507][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.707507][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.707507][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.707507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.707507][ T254] [ 3445.709206][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3445.709206][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3445.709206][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3445.709206][ T254] ipv6_find_idev+0x102/0x170 [ 3445.709206][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3445.709206][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3445.709206][ T254] netlink_rcv_skb+0x130/0x360 [ 3445.709206][ T254] netlink_unicast+0x449/0x710 [ 3445.709206][ T254] netlink_sendmsg+0x723/0xbe0 [ 3445.709206][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3445.709206][ T254] ___sys_sendmsg+0xee/0x170 [ 3445.709206][ T254] __sys_sendmsg+0xcd/0x170 [ 3445.709206][ T254] do_syscall_64+0xc6/0x1e0 [ 3445.709206][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3445.709206][ T254] [ 3455.863915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3455.864543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.864543][ T254] dst_init+0x84/0x4a0 [ 3455.864543][ T254] dst_alloc+0x97/0x150 [ 3455.864543][ T254] ip6_dst_alloc+0x23/0x90 [ 3455.864543][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3455.864543][ T254] ip6_pol_route+0x56f/0x840 [ 3455.864543][ T254] fib6_rule_lookup+0x334/0x630 [ 3455.864543][ T254] ip6_route_output_flags+0x259/0x480 [ 3455.864543][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3455.864543][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3455.864543][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.864543][ T254] netlink_unicast+0x449/0x710 [ 3455.864543][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.864543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.864543][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.864543][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.864543][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.864543][ T254] [ 3455.866625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.866625][ T254] netdev_get_by_index+0x5e/0x80 [ 3455.866625][ T254] fib6_nh_init+0x3d8/0x1580 [ 3455.866625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3455.866625][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3455.866625][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3455.866625][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3455.866625][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3455.866625][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3455.866625][ T254] addrconf_dad_begin+0x310/0x670 [ 3455.866625][ T254] addrconf_dad_work+0x10b/0xab0 [ 3455.866625][ T254] process_one_work+0x84d/0x18a0 [ 3455.866625][ T254] worker_thread+0x587/0xd30 [ 3455.866625][ T254] kthread+0x28a/0x350 [ 3455.866625][ T254] ret_from_fork+0x31/0x70 [ 3455.866625][ T254] ret_from_fork_asm+0x1a/0x30 [ 3455.866625][ T254] [ 3455.868648][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.868648][ T254] netdev_get_by_index+0x5e/0x80 [ 3455.868648][ T254] fib6_nh_init+0x3d8/0x1580 [ 3455.868648][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3455.868648][ T254] ip6_route_add+0x1c/0x140 [ 3455.868648][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3455.868648][ T254] inet6_addr_add+0x4f8/0xa40 [ 3455.868648][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.868648][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.868648][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.868648][ T254] netlink_unicast+0x449/0x710 [ 3455.868648][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.868648][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.868648][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.868648][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.868648][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.868648][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.868648][ T254] [ 3455.870777][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.870777][ T254] netdev_get_by_index+0x5e/0x80 [ 3455.870777][ T254] fib6_nh_init+0x3d8/0x1580 [ 3455.870777][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3455.870777][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3455.870777][ T254] ipv6_add_addr+0x411/0x2000 [ 3455.870777][ T254] inet6_addr_add+0x30e/0xa40 [ 3455.870777][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.870777][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.870777][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.870777][ T254] netlink_unicast+0x449/0x710 [ 3455.870777][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.870777][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.870777][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.870777][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.870777][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.870777][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.870777][ T254] [ 3455.872886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.872886][ T254] netdev_get_by_index+0x5e/0x80 [ 3455.872886][ T254] fib6_nh_init+0x3d8/0x1580 [ 3455.872886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3455.872886][ T254] ip6_route_add+0x1c/0x140 [ 3455.872886][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3455.872886][ T254] addrconf_add_dev+0xe2/0x170 [ 3455.872886][ T254] inet6_addr_add+0x12f/0xa40 [ 3455.872886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3455.872886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.872886][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.872886][ T254] netlink_unicast+0x449/0x710 [ 3455.872886][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.872886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.872886][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.872886][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.872886][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.872886][ T254] [ 3455.875068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.875068][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3455.875068][ T254] ipv6_find_idev+0x102/0x170 [ 3455.875068][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.875068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.875068][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.875068][ T254] netlink_unicast+0x449/0x710 [ 3455.875068][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.875068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.875068][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.875068][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.875068][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.875068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.875068][ T254] [ 3455.876765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3455.876765][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3455.876765][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3455.876765][ T254] ipv6_find_idev+0x102/0x170 [ 3455.876765][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3455.876765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3455.876765][ T254] netlink_rcv_skb+0x130/0x360 [ 3455.876765][ T254] netlink_unicast+0x449/0x710 [ 3455.876765][ T254] netlink_sendmsg+0x723/0xbe0 [ 3455.876765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3455.876765][ T254] ___sys_sendmsg+0xee/0x170 [ 3455.876765][ T254] __sys_sendmsg+0xcd/0x170 [ 3455.876765][ T254] do_syscall_64+0xc6/0x1e0 [ 3455.876765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3455.876765][ T254] [ 3466.127939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3466.128813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.128813][ T254] dst_init+0x84/0x4a0 [ 3466.128813][ T254] dst_alloc+0x97/0x150 [ 3466.128813][ T254] ip6_dst_alloc+0x23/0x90 [ 3466.128813][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3466.128813][ T254] ip6_pol_route+0x56f/0x840 [ 3466.128813][ T254] fib6_rule_lookup+0x334/0x630 [ 3466.128813][ T254] ip6_route_output_flags+0x259/0x480 [ 3466.128813][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3466.128813][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3466.128813][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.128813][ T254] netlink_unicast+0x449/0x710 [ 3466.128813][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.128813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.128813][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.128813][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.128813][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.128813][ T254] [ 3466.130973][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.130973][ T254] netdev_get_by_index+0x5e/0x80 [ 3466.130973][ T254] fib6_nh_init+0x3d8/0x1580 [ 3466.130973][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3466.130973][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3466.130973][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3466.130973][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3466.130973][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3466.130973][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3466.130973][ T254] addrconf_dad_begin+0x310/0x670 [ 3466.130973][ T254] addrconf_dad_work+0x10b/0xab0 [ 3466.130973][ T254] process_one_work+0x84d/0x18a0 [ 3466.130973][ T254] worker_thread+0x587/0xd30 [ 3466.130973][ T254] kthread+0x28a/0x350 [ 3466.130973][ T254] ret_from_fork+0x31/0x70 [ 3466.130973][ T254] ret_from_fork_asm+0x1a/0x30 [ 3466.130973][ T254] [ 3466.133062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.133062][ T254] netdev_get_by_index+0x5e/0x80 [ 3466.133062][ T254] fib6_nh_init+0x3d8/0x1580 [ 3466.133062][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3466.133062][ T254] ip6_route_add+0x1c/0x140 [ 3466.133062][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3466.133062][ T254] inet6_addr_add+0x4f8/0xa40 [ 3466.133062][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.133062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.133062][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.133062][ T254] netlink_unicast+0x449/0x710 [ 3466.133062][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.133062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.133062][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.133062][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.133062][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.133062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.133062][ T254] [ 3466.135309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.135309][ T254] netdev_get_by_index+0x5e/0x80 [ 3466.135309][ T254] fib6_nh_init+0x3d8/0x1580 [ 3466.135309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3466.135309][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3466.135309][ T254] ipv6_add_addr+0x411/0x2000 [ 3466.135309][ T254] inet6_addr_add+0x30e/0xa40 [ 3466.135309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.135309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.135309][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.135309][ T254] netlink_unicast+0x449/0x710 [ 3466.135309][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.135309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.135309][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.135309][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.135309][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.135309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.135309][ T254] [ 3466.137505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.137505][ T254] netdev_get_by_index+0x5e/0x80 [ 3466.137505][ T254] fib6_nh_init+0x3d8/0x1580 [ 3466.137505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3466.137505][ T254] ip6_route_add+0x1c/0x140 [ 3466.137505][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3466.137505][ T254] addrconf_add_dev+0xe2/0x170 [ 3466.137505][ T254] inet6_addr_add+0x12f/0xa40 [ 3466.137505][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3466.137505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.137505][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.137505][ T254] netlink_unicast+0x449/0x710 [ 3466.137505][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.137505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.137505][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.137505][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.137505][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.137505][ T254] [ 3466.140232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.140232][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3466.140232][ T254] ipv6_find_idev+0x102/0x170 [ 3466.140232][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.140232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.140232][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.140232][ T254] netlink_unicast+0x449/0x710 [ 3466.140232][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.140232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.140232][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.140232][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.140232][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.140232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.140232][ T254] [ 3466.141984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3466.141984][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3466.141984][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3466.141984][ T254] ipv6_find_idev+0x102/0x170 [ 3466.141984][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3466.141984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3466.141984][ T254] netlink_rcv_skb+0x130/0x360 [ 3466.141984][ T254] netlink_unicast+0x449/0x710 [ 3466.141984][ T254] netlink_sendmsg+0x723/0xbe0 [ 3466.141984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3466.141984][ T254] ___sys_sendmsg+0xee/0x170 [ 3466.141984][ T254] __sys_sendmsg+0xcd/0x170 [ 3466.141984][ T254] do_syscall_64+0xc6/0x1e0 [ 3466.141984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3466.141984][ T254] [ 3476.391913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3476.392756][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.392756][ T254] dst_init+0x84/0x4a0 [ 3476.392756][ T254] dst_alloc+0x97/0x150 [ 3476.392756][ T254] ip6_dst_alloc+0x23/0x90 [ 3476.392756][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3476.392756][ T254] ip6_pol_route+0x56f/0x840 [ 3476.392756][ T254] fib6_rule_lookup+0x334/0x630 [ 3476.392756][ T254] ip6_route_output_flags+0x259/0x480 [ 3476.392756][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3476.392756][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3476.392756][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.392756][ T254] netlink_unicast+0x449/0x710 [ 3476.392756][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.392756][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.392756][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.392756][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.392756][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.392756][ T254] [ 3476.394975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.394975][ T254] netdev_get_by_index+0x5e/0x80 [ 3476.394975][ T254] fib6_nh_init+0x3d8/0x1580 [ 3476.394975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3476.394975][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3476.394975][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3476.394975][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3476.394975][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3476.394975][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3476.394975][ T254] addrconf_dad_begin+0x310/0x670 [ 3476.394975][ T254] addrconf_dad_work+0x10b/0xab0 [ 3476.394975][ T254] process_one_work+0x84d/0x18a0 [ 3476.394975][ T254] worker_thread+0x587/0xd30 [ 3476.394975][ T254] kthread+0x28a/0x350 [ 3476.394975][ T254] ret_from_fork+0x31/0x70 [ 3476.394975][ T254] ret_from_fork_asm+0x1a/0x30 [ 3476.394975][ T254] [ 3476.397166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.397166][ T254] netdev_get_by_index+0x5e/0x80 [ 3476.397166][ T254] fib6_nh_init+0x3d8/0x1580 [ 3476.397166][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3476.397166][ T254] ip6_route_add+0x1c/0x140 [ 3476.397166][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3476.397166][ T254] inet6_addr_add+0x4f8/0xa40 [ 3476.397166][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.397166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.397166][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.397166][ T254] netlink_unicast+0x449/0x710 [ 3476.397166][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.397166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.397166][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.397166][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.397166][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.397166][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.397166][ T254] [ 3476.399465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.399465][ T254] netdev_get_by_index+0x5e/0x80 [ 3476.399465][ T254] fib6_nh_init+0x3d8/0x1580 [ 3476.399465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3476.399465][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3476.399465][ T254] ipv6_add_addr+0x411/0x2000 [ 3476.399465][ T254] inet6_addr_add+0x30e/0xa40 [ 3476.399465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.399465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.399465][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.399465][ T254] netlink_unicast+0x449/0x710 [ 3476.399465][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.399465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.399465][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.399465][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.399465][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.399465][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.399465][ T254] [ 3476.401748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.401748][ T254] netdev_get_by_index+0x5e/0x80 [ 3476.401748][ T254] fib6_nh_init+0x3d8/0x1580 [ 3476.401748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3476.401748][ T254] ip6_route_add+0x1c/0x140 [ 3476.401748][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3476.401748][ T254] addrconf_add_dev+0xe2/0x170 [ 3476.401748][ T254] inet6_addr_add+0x12f/0xa40 [ 3476.401748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3476.401748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.401748][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.401748][ T254] netlink_unicast+0x449/0x710 [ 3476.401748][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.401748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.401748][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.401748][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.401748][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.401748][ T254] [ 3476.403979][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.403979][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3476.403979][ T254] ipv6_find_idev+0x102/0x170 [ 3476.403979][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.403979][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.403979][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.403979][ T254] netlink_unicast+0x449/0x710 [ 3476.403979][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.403979][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.403979][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.403979][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.403979][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.403979][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.403979][ T254] [ 3476.405734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3476.405734][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3476.405734][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3476.405734][ T254] ipv6_find_idev+0x102/0x170 [ 3476.405734][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3476.405734][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3476.405734][ T254] netlink_rcv_skb+0x130/0x360 [ 3476.405734][ T254] netlink_unicast+0x449/0x710 [ 3476.405734][ T254] netlink_sendmsg+0x723/0xbe0 [ 3476.405734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3476.405734][ T254] ___sys_sendmsg+0xee/0x170 [ 3476.405734][ T254] __sys_sendmsg+0xcd/0x170 [ 3476.405734][ T254] do_syscall_64+0xc6/0x1e0 [ 3476.405734][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3476.405734][ T254] [ 3486.639924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3486.640737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.640737][ T254] dst_init+0x84/0x4a0 [ 3486.640737][ T254] dst_alloc+0x97/0x150 [ 3486.640737][ T254] ip6_dst_alloc+0x23/0x90 [ 3486.640737][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3486.640737][ T254] ip6_pol_route+0x56f/0x840 [ 3486.640737][ T254] fib6_rule_lookup+0x334/0x630 [ 3486.640737][ T254] ip6_route_output_flags+0x259/0x480 [ 3486.640737][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3486.640737][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3486.640737][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.640737][ T254] netlink_unicast+0x449/0x710 [ 3486.640737][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.640737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.640737][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.640737][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.640737][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.640737][ T254] [ 3486.642944][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.642944][ T254] netdev_get_by_index+0x5e/0x80 [ 3486.642944][ T254] fib6_nh_init+0x3d8/0x1580 [ 3486.642944][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3486.642944][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3486.642944][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3486.642944][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3486.642944][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3486.642944][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3486.642944][ T254] addrconf_dad_begin+0x310/0x670 [ 3486.642944][ T254] addrconf_dad_work+0x10b/0xab0 [ 3486.642944][ T254] process_one_work+0x84d/0x18a0 [ 3486.642944][ T254] worker_thread+0x587/0xd30 [ 3486.642944][ T254] kthread+0x28a/0x350 [ 3486.642944][ T254] ret_from_fork+0x31/0x70 [ 3486.642944][ T254] ret_from_fork_asm+0x1a/0x30 [ 3486.642944][ T254] [ 3486.645037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.645037][ T254] netdev_get_by_index+0x5e/0x80 [ 3486.645037][ T254] fib6_nh_init+0x3d8/0x1580 [ 3486.645037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3486.645037][ T254] ip6_route_add+0x1c/0x140 [ 3486.645037][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3486.645037][ T254] inet6_addr_add+0x4f8/0xa40 [ 3486.645037][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.645037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.645037][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.645037][ T254] netlink_unicast+0x449/0x710 [ 3486.645037][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.645037][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.645037][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.645037][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.645037][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.645037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.645037][ T254] [ 3486.647291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.647291][ T254] netdev_get_by_index+0x5e/0x80 [ 3486.647291][ T254] fib6_nh_init+0x3d8/0x1580 [ 3486.647291][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3486.647291][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3486.647291][ T254] ipv6_add_addr+0x411/0x2000 [ 3486.647291][ T254] inet6_addr_add+0x30e/0xa40 [ 3486.647291][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.647291][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.647291][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.647291][ T254] netlink_unicast+0x449/0x710 [ 3486.647291][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.647291][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.647291][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.647291][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.647291][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.647291][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.647291][ T254] [ 3486.649515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.649515][ T254] netdev_get_by_index+0x5e/0x80 [ 3486.649515][ T254] fib6_nh_init+0x3d8/0x1580 [ 3486.649515][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3486.649515][ T254] ip6_route_add+0x1c/0x140 [ 3486.649515][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3486.649515][ T254] addrconf_add_dev+0xe2/0x170 [ 3486.649515][ T254] inet6_addr_add+0x12f/0xa40 [ 3486.649515][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3486.649515][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.649515][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.649515][ T254] netlink_unicast+0x449/0x710 [ 3486.649515][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.649515][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.649515][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.649515][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.649515][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.649515][ T254] [ 3486.651725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.651725][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3486.651725][ T254] ipv6_find_idev+0x102/0x170 [ 3486.651725][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.651725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.651725][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.651725][ T254] netlink_unicast+0x449/0x710 [ 3486.651725][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.651725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.651725][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.651725][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.651725][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.651725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.651725][ T254] [ 3486.653476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3486.653476][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3486.653476][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3486.653476][ T254] ipv6_find_idev+0x102/0x170 [ 3486.653476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3486.653476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3486.653476][ T254] netlink_rcv_skb+0x130/0x360 [ 3486.653476][ T254] netlink_unicast+0x449/0x710 [ 3486.653476][ T254] netlink_sendmsg+0x723/0xbe0 [ 3486.653476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3486.653476][ T254] ___sys_sendmsg+0xee/0x170 [ 3486.653476][ T254] __sys_sendmsg+0xcd/0x170 [ 3486.653476][ T254] do_syscall_64+0xc6/0x1e0 [ 3486.653476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3486.653476][ T254] [ 3496.903917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3496.904734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.904734][ T254] dst_init+0x84/0x4a0 [ 3496.904734][ T254] dst_alloc+0x97/0x150 [ 3496.904734][ T254] ip6_dst_alloc+0x23/0x90 [ 3496.904734][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3496.904734][ T254] ip6_pol_route+0x56f/0x840 [ 3496.904734][ T254] fib6_rule_lookup+0x334/0x630 [ 3496.904734][ T254] ip6_route_output_flags+0x259/0x480 [ 3496.904734][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3496.904734][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3496.904734][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.904734][ T254] netlink_unicast+0x449/0x710 [ 3496.904734][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.904734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.904734][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.904734][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.904734][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.904734][ T254] [ 3496.906919][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.906919][ T254] netdev_get_by_index+0x5e/0x80 [ 3496.906919][ T254] fib6_nh_init+0x3d8/0x1580 [ 3496.906919][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3496.906919][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3496.906919][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3496.906919][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3496.906919][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3496.906919][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3496.906919][ T254] addrconf_dad_begin+0x310/0x670 [ 3496.906919][ T254] addrconf_dad_work+0x10b/0xab0 [ 3496.906919][ T254] process_one_work+0x84d/0x18a0 [ 3496.906919][ T254] worker_thread+0x587/0xd30 [ 3496.906919][ T254] kthread+0x28a/0x350 [ 3496.906919][ T254] ret_from_fork+0x31/0x70 [ 3496.906919][ T254] ret_from_fork_asm+0x1a/0x30 [ 3496.906919][ T254] [ 3496.909140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.909140][ T254] netdev_get_by_index+0x5e/0x80 [ 3496.909140][ T254] fib6_nh_init+0x3d8/0x1580 [ 3496.909140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3496.909140][ T254] ip6_route_add+0x1c/0x140 [ 3496.909140][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3496.909140][ T254] inet6_addr_add+0x4f8/0xa40 [ 3496.909140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.909140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.909140][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.909140][ T254] netlink_unicast+0x449/0x710 [ 3496.909140][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.909140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.909140][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.909140][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.909140][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.909140][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.909140][ T254] [ 3496.911401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.911401][ T254] netdev_get_by_index+0x5e/0x80 [ 3496.911401][ T254] fib6_nh_init+0x3d8/0x1580 [ 3496.911401][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3496.911401][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3496.911401][ T254] ipv6_add_addr+0x411/0x2000 [ 3496.911401][ T254] inet6_addr_add+0x30e/0xa40 [ 3496.911401][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.911401][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.911401][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.911401][ T254] netlink_unicast+0x449/0x710 [ 3496.911401][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.911401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.911401][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.911401][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.911401][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.911401][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.911401][ T254] [ 3496.913637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.913637][ T254] netdev_get_by_index+0x5e/0x80 [ 3496.913637][ T254] fib6_nh_init+0x3d8/0x1580 [ 3496.913637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3496.913637][ T254] ip6_route_add+0x1c/0x140 [ 3496.913637][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3496.913637][ T254] addrconf_add_dev+0xe2/0x170 [ 3496.913637][ T254] inet6_addr_add+0x12f/0xa40 [ 3496.913637][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3496.913637][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.913637][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.913637][ T254] netlink_unicast+0x449/0x710 [ 3496.913637][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.913637][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.913637][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.913637][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.913637][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.913637][ T254] [ 3496.915866][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.915866][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3496.915866][ T254] ipv6_find_idev+0x102/0x170 [ 3496.915866][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.915866][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.915866][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.915866][ T254] netlink_unicast+0x449/0x710 [ 3496.915866][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.915866][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.915866][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.915866][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.915866][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.915866][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.915866][ T254] [ 3496.917579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3496.917579][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3496.917579][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3496.917579][ T254] ipv6_find_idev+0x102/0x170 [ 3496.917579][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3496.917579][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3496.917579][ T254] netlink_rcv_skb+0x130/0x360 [ 3496.917579][ T254] netlink_unicast+0x449/0x710 [ 3496.917579][ T254] netlink_sendmsg+0x723/0xbe0 [ 3496.917579][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3496.917579][ T254] ___sys_sendmsg+0xee/0x170 [ 3496.917579][ T254] __sys_sendmsg+0xcd/0x170 [ 3496.917579][ T254] do_syscall_64+0xc6/0x1e0 [ 3496.917579][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3496.917579][ T254] [ 3507.151938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3507.152804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.152804][ T254] dst_init+0x84/0x4a0 [ 3507.152804][ T254] dst_alloc+0x97/0x150 [ 3507.152804][ T254] ip6_dst_alloc+0x23/0x90 [ 3507.152804][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3507.152804][ T254] ip6_pol_route+0x56f/0x840 [ 3507.152804][ T254] fib6_rule_lookup+0x334/0x630 [ 3507.152804][ T254] ip6_route_output_flags+0x259/0x480 [ 3507.152804][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3507.152804][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3507.152804][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.152804][ T254] netlink_unicast+0x449/0x710 [ 3507.152804][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.152804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.152804][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.152804][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.152804][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.152804][ T254] [ 3507.155113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.155113][ T254] netdev_get_by_index+0x5e/0x80 [ 3507.155113][ T254] fib6_nh_init+0x3d8/0x1580 [ 3507.155113][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3507.155113][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3507.155113][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3507.155113][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3507.155113][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3507.155113][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3507.155113][ T254] addrconf_dad_begin+0x310/0x670 [ 3507.155113][ T254] addrconf_dad_work+0x10b/0xab0 [ 3507.155113][ T254] process_one_work+0x84d/0x18a0 [ 3507.155113][ T254] worker_thread+0x587/0xd30 [ 3507.155113][ T254] kthread+0x28a/0x350 [ 3507.155113][ T254] ret_from_fork+0x31/0x70 [ 3507.155113][ T254] ret_from_fork_asm+0x1a/0x30 [ 3507.155113][ T254] [ 3507.157330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.157330][ T254] netdev_get_by_index+0x5e/0x80 [ 3507.157330][ T254] fib6_nh_init+0x3d8/0x1580 [ 3507.157330][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3507.157330][ T254] ip6_route_add+0x1c/0x140 [ 3507.157330][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3507.157330][ T254] inet6_addr_add+0x4f8/0xa40 [ 3507.157330][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3507.157330][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3507.157330][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.157330][ T254] netlink_unicast+0x449/0x710 [ 3507.157330][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.157330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.157330][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.157330][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.157330][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.157330][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3507.157330][ T254] [ 3507.159617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.159617][ T254] netdev_get_by_index+0x5e/0x80 [ 3507.159617][ T254] fib6_nh_init+0x3d8/0x1580 [ 3507.159617][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3507.159617][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3507.159617][ T254] ipv6_add_addr+0x411/0x2000 [ 3507.159617][ T254] inet6_addr_add+0x30e/0xa40 [ 3507.159617][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3507.159617][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3507.159617][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.159617][ T254] netlink_unicast+0x449/0x710 [ 3507.159617][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.159617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.159617][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.159617][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.159617][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.159617][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3507.159617][ T254] [ 3507.161950][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.161950][ T254] netdev_get_by_index+0x5e/0x80 [ 3507.161950][ T254] fib6_nh_init+0x3d8/0x1580 [ 3507.161950][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3507.161950][ T254] ip6_route_add+0x1c/0x140 [ 3507.161950][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3507.161950][ T254] addrconf_add_dev+0xe2/0x170 [ 3507.161950][ T254] inet6_addr_add+0x12f/0xa40 [ 3507.161950][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3507.161950][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3507.161950][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.161950][ T254] netlink_unicast+0x449/0x710 [ 3507.161950][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.161950][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.161950][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.161950][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.161950][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.161950][ T254] [ 3507.164214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.164214][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3507.164214][ T254] ipv6_find_idev+0x102/0x170 [ 3507.164214][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3507.164214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3507.164214][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.164214][ T254] netlink_unicast+0x449/0x710 [ 3507.164214][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.164214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.164214][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.164214][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.164214][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.164214][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3507.164214][ T254] [ 3507.165966][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3507.165966][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3507.165966][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3507.165966][ T254] ipv6_find_idev+0x102/0x170 [ 3507.165966][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3507.165966][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3507.165966][ T254] netlink_rcv_skb+0x130/0x360 [ 3507.165966][ T254] netlink_unicast+0x449/0x710 [ 3507.165966][ T254] netlink_sendmsg+0x723/0xbe0 [ 3507.165966][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3507.165966][ T254] ___sys_sendmsg+0xee/0x170 [ 3507.165966][ T254] __sys_sendmsg+0xcd/0x170 [ 3507.165966][ T254] do_syscall_64+0xc6/0x1e0 [ 3507.165966][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3507.165966][ T254] [ 3517.407926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3517.408571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.408571][ T254] dst_init+0x84/0x4a0 [ 3517.408571][ T254] dst_alloc+0x97/0x150 [ 3517.408571][ T254] ip6_dst_alloc+0x23/0x90 [ 3517.408571][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3517.408571][ T254] ip6_pol_route+0x56f/0x840 [ 3517.408571][ T254] fib6_rule_lookup+0x334/0x630 [ 3517.408571][ T254] ip6_route_output_flags+0x259/0x480 [ 3517.408571][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3517.408571][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3517.408571][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.408571][ T254] netlink_unicast+0x449/0x710 [ 3517.408571][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.408571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.408571][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.408571][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.408571][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.408571][ T254] [ 3517.410874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.410874][ T254] netdev_get_by_index+0x5e/0x80 [ 3517.410874][ T254] fib6_nh_init+0x3d8/0x1580 [ 3517.410874][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3517.410874][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3517.410874][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3517.410874][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3517.410874][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3517.410874][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3517.410874][ T254] addrconf_dad_begin+0x310/0x670 [ 3517.410874][ T254] addrconf_dad_work+0x10b/0xab0 [ 3517.410874][ T254] process_one_work+0x84d/0x18a0 [ 3517.410874][ T254] worker_thread+0x587/0xd30 [ 3517.410874][ T254] kthread+0x28a/0x350 [ 3517.410874][ T254] ret_from_fork+0x31/0x70 [ 3517.410874][ T254] ret_from_fork_asm+0x1a/0x30 [ 3517.410874][ T254] [ 3517.413140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.413140][ T254] netdev_get_by_index+0x5e/0x80 [ 3517.413140][ T254] fib6_nh_init+0x3d8/0x1580 [ 3517.413140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3517.413140][ T254] ip6_route_add+0x1c/0x140 [ 3517.413140][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3517.413140][ T254] inet6_addr_add+0x4f8/0xa40 [ 3517.413140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.413140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.413140][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.413140][ T254] netlink_unicast+0x449/0x710 [ 3517.413140][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.413140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.413140][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.413140][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.413140][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.413140][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.413140][ T254] [ 3517.415496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.415496][ T254] netdev_get_by_index+0x5e/0x80 [ 3517.415496][ T254] fib6_nh_init+0x3d8/0x1580 [ 3517.415496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3517.415496][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3517.415496][ T254] ipv6_add_addr+0x411/0x2000 [ 3517.415496][ T254] inet6_addr_add+0x30e/0xa40 [ 3517.415496][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.415496][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.415496][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.415496][ T254] netlink_unicast+0x449/0x710 [ 3517.415496][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.415496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.415496][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.415496][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.415496][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.415496][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.415496][ T254] [ 3517.417779][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.417779][ T254] netdev_get_by_index+0x5e/0x80 [ 3517.417779][ T254] fib6_nh_init+0x3d8/0x1580 [ 3517.417779][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3517.417779][ T254] ip6_route_add+0x1c/0x140 [ 3517.417779][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3517.417779][ T254] addrconf_add_dev+0xe2/0x170 [ 3517.417779][ T254] inet6_addr_add+0x12f/0xa40 [ 3517.417779][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3517.417779][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.417779][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.417779][ T254] netlink_unicast+0x449/0x710 [ 3517.417779][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.417779][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.417779][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.417779][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.417779][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.417779][ T254] [ 3517.420563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.420563][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3517.420563][ T254] ipv6_find_idev+0x102/0x170 [ 3517.420563][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.420563][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.420563][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.420563][ T254] netlink_unicast+0x449/0x710 [ 3517.420563][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.420563][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.420563][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.420563][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.420563][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.420563][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.420563][ T254] [ 3517.422361][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3517.422361][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3517.422361][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3517.422361][ T254] ipv6_find_idev+0x102/0x170 [ 3517.422361][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3517.422361][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3517.422361][ T254] netlink_rcv_skb+0x130/0x360 [ 3517.422361][ T254] netlink_unicast+0x449/0x710 [ 3517.422361][ T254] netlink_sendmsg+0x723/0xbe0 [ 3517.422361][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3517.422361][ T254] ___sys_sendmsg+0xee/0x170 [ 3517.422361][ T254] __sys_sendmsg+0xcd/0x170 [ 3517.422361][ T254] do_syscall_64+0xc6/0x1e0 [ 3517.422361][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3517.422361][ T254] [ 3527.663913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3527.664619][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.664619][ T254] dst_init+0x84/0x4a0 [ 3527.664619][ T254] dst_alloc+0x97/0x150 [ 3527.664619][ T254] ip6_dst_alloc+0x23/0x90 [ 3527.664619][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3527.664619][ T254] ip6_pol_route+0x56f/0x840 [ 3527.664619][ T254] fib6_rule_lookup+0x334/0x630 [ 3527.664619][ T254] ip6_route_output_flags+0x259/0x480 [ 3527.664619][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3527.664619][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3527.664619][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.664619][ T254] netlink_unicast+0x449/0x710 [ 3527.664619][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.664619][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.664619][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.664619][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.664619][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.664619][ T254] [ 3527.666882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.666882][ T254] netdev_get_by_index+0x5e/0x80 [ 3527.666882][ T254] fib6_nh_init+0x3d8/0x1580 [ 3527.666882][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3527.666882][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3527.666882][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3527.666882][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3527.666882][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3527.666882][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3527.666882][ T254] addrconf_dad_begin+0x310/0x670 [ 3527.666882][ T254] addrconf_dad_work+0x10b/0xab0 [ 3527.666882][ T254] process_one_work+0x84d/0x18a0 [ 3527.666882][ T254] worker_thread+0x587/0xd30 [ 3527.666882][ T254] kthread+0x28a/0x350 [ 3527.666882][ T254] ret_from_fork+0x31/0x70 [ 3527.666882][ T254] ret_from_fork_asm+0x1a/0x30 [ 3527.666882][ T254] [ 3527.669622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.669622][ T254] netdev_get_by_index+0x5e/0x80 [ 3527.669622][ T254] fib6_nh_init+0x3d8/0x1580 [ 3527.669622][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3527.669622][ T254] ip6_route_add+0x1c/0x140 [ 3527.669622][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3527.669622][ T254] inet6_addr_add+0x4f8/0xa40 [ 3527.669622][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.669622][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.669622][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.669622][ T254] netlink_unicast+0x449/0x710 [ 3527.669622][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.669622][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.669622][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.669622][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.669622][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.669622][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.669622][ T254] [ 3527.673520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.673520][ T254] netdev_get_by_index+0x5e/0x80 [ 3527.673520][ T254] fib6_nh_init+0x3d8/0x1580 [ 3527.673520][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3527.673520][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3527.673520][ T254] ipv6_add_addr+0x411/0x2000 [ 3527.673520][ T254] inet6_addr_add+0x30e/0xa40 [ 3527.673520][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.673520][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.673520][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.673520][ T254] netlink_unicast+0x449/0x710 [ 3527.673520][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.673520][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.673520][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.673520][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.673520][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.673520][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.673520][ T254] [ 3527.677289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.677289][ T254] netdev_get_by_index+0x5e/0x80 [ 3527.677289][ T254] fib6_nh_init+0x3d8/0x1580 [ 3527.677289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3527.677289][ T254] ip6_route_add+0x1c/0x140 [ 3527.677289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3527.677289][ T254] addrconf_add_dev+0xe2/0x170 [ 3527.677289][ T254] inet6_addr_add+0x12f/0xa40 [ 3527.677289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3527.677289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.677289][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.677289][ T254] netlink_unicast+0x449/0x710 [ 3527.677289][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.677289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.677289][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.677289][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.677289][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.677289][ T254] [ 3527.680967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.680967][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3527.680967][ T254] ipv6_find_idev+0x102/0x170 [ 3527.680967][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.680967][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.680967][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.680967][ T254] netlink_unicast+0x449/0x710 [ 3527.680967][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.680967][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.680967][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.680967][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.680967][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.680967][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.680967][ T254] [ 3527.683846][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3527.683846][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3527.683846][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3527.683846][ T254] ipv6_find_idev+0x102/0x170 [ 3527.683846][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3527.683846][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3527.683846][ T254] netlink_rcv_skb+0x130/0x360 [ 3527.683846][ T254] netlink_unicast+0x449/0x710 [ 3527.683846][ T254] netlink_sendmsg+0x723/0xbe0 [ 3527.683846][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3527.683846][ T254] ___sys_sendmsg+0xee/0x170 [ 3527.683846][ T254] __sys_sendmsg+0xcd/0x170 [ 3527.683846][ T254] do_syscall_64+0xc6/0x1e0 [ 3527.683846][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3527.683846][ T254] [ 3537.927923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3537.928886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.928886][ T254] dst_init+0x84/0x4a0 [ 3537.928886][ T254] dst_alloc+0x97/0x150 [ 3537.928886][ T254] ip6_dst_alloc+0x23/0x90 [ 3537.928886][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3537.928886][ T254] ip6_pol_route+0x56f/0x840 [ 3537.928886][ T254] fib6_rule_lookup+0x334/0x630 [ 3537.928886][ T254] ip6_route_output_flags+0x259/0x480 [ 3537.928886][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3537.928886][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3537.928886][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.928886][ T254] netlink_unicast+0x449/0x710 [ 3537.928886][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.928886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.928886][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.928886][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.928886][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.928886][ T254] [ 3537.931212][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.931212][ T254] netdev_get_by_index+0x5e/0x80 [ 3537.931212][ T254] fib6_nh_init+0x3d8/0x1580 [ 3537.931212][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3537.931212][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3537.931212][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3537.931212][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3537.931212][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3537.931212][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3537.931212][ T254] addrconf_dad_begin+0x310/0x670 [ 3537.931212][ T254] addrconf_dad_work+0x10b/0xab0 [ 3537.931212][ T254] process_one_work+0x84d/0x18a0 [ 3537.931212][ T254] worker_thread+0x587/0xd30 [ 3537.931212][ T254] kthread+0x28a/0x350 [ 3537.931212][ T254] ret_from_fork+0x31/0x70 [ 3537.931212][ T254] ret_from_fork_asm+0x1a/0x30 [ 3537.931212][ T254] [ 3537.933433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.933433][ T254] netdev_get_by_index+0x5e/0x80 [ 3537.933433][ T254] fib6_nh_init+0x3d8/0x1580 [ 3537.933433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3537.933433][ T254] ip6_route_add+0x1c/0x140 [ 3537.933433][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3537.933433][ T254] inet6_addr_add+0x4f8/0xa40 [ 3537.933433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.933433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.933433][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.933433][ T254] netlink_unicast+0x449/0x710 [ 3537.933433][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.933433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.933433][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.933433][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.933433][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.933433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.933433][ T254] [ 3537.935820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.935820][ T254] netdev_get_by_index+0x5e/0x80 [ 3537.935820][ T254] fib6_nh_init+0x3d8/0x1580 [ 3537.935820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3537.935820][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3537.935820][ T254] ipv6_add_addr+0x411/0x2000 [ 3537.935820][ T254] inet6_addr_add+0x30e/0xa40 [ 3537.935820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.935820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.935820][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.935820][ T254] netlink_unicast+0x449/0x710 [ 3537.935820][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.935820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.935820][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.935820][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.935820][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.935820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.935820][ T254] [ 3537.938163][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.938163][ T254] netdev_get_by_index+0x5e/0x80 [ 3537.938163][ T254] fib6_nh_init+0x3d8/0x1580 [ 3537.938163][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3537.938163][ T254] ip6_route_add+0x1c/0x140 [ 3537.938163][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3537.938163][ T254] addrconf_add_dev+0xe2/0x170 [ 3537.938163][ T254] inet6_addr_add+0x12f/0xa40 [ 3537.938163][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3537.938163][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.938163][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.938163][ T254] netlink_unicast+0x449/0x710 [ 3537.938163][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.938163][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.938163][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.938163][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.938163][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.938163][ T254] [ 3537.940442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.940442][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3537.940442][ T254] ipv6_find_idev+0x102/0x170 [ 3537.940442][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.940442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.940442][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.940442][ T254] netlink_unicast+0x449/0x710 [ 3537.940442][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.940442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.940442][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.940442][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.940442][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.940442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.940442][ T254] [ 3537.942267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3537.942267][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3537.942267][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3537.942267][ T254] ipv6_find_idev+0x102/0x170 [ 3537.942267][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3537.942267][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3537.942267][ T254] netlink_rcv_skb+0x130/0x360 [ 3537.942267][ T254] netlink_unicast+0x449/0x710 [ 3537.942267][ T254] netlink_sendmsg+0x723/0xbe0 [ 3537.942267][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3537.942267][ T254] ___sys_sendmsg+0xee/0x170 [ 3537.942267][ T254] __sys_sendmsg+0xcd/0x170 [ 3537.942267][ T254] do_syscall_64+0xc6/0x1e0 [ 3537.942267][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3537.942267][ T254] [ 3548.119920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3548.120738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.120738][ T254] dst_init+0x84/0x4a0 [ 3548.120738][ T254] dst_alloc+0x97/0x150 [ 3548.120738][ T254] ip6_dst_alloc+0x23/0x90 [ 3548.120738][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3548.120738][ T254] ip6_pol_route+0x56f/0x840 [ 3548.120738][ T254] fib6_rule_lookup+0x334/0x630 [ 3548.120738][ T254] ip6_route_output_flags+0x259/0x480 [ 3548.120738][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3548.120738][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3548.120738][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.120738][ T254] netlink_unicast+0x449/0x710 [ 3548.120738][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.120738][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.120738][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.120738][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.120738][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.120738][ T254] [ 3548.122976][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.122976][ T254] netdev_get_by_index+0x5e/0x80 [ 3548.122976][ T254] fib6_nh_init+0x3d8/0x1580 [ 3548.122976][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3548.122976][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3548.122976][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3548.122976][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3548.122976][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3548.122976][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3548.122976][ T254] addrconf_dad_begin+0x310/0x670 [ 3548.122976][ T254] addrconf_dad_work+0x10b/0xab0 [ 3548.122976][ T254] process_one_work+0x84d/0x18a0 [ 3548.122976][ T254] worker_thread+0x587/0xd30 [ 3548.122976][ T254] kthread+0x28a/0x350 [ 3548.122976][ T254] ret_from_fork+0x31/0x70 [ 3548.122976][ T254] ret_from_fork_asm+0x1a/0x30 [ 3548.122976][ T254] [ 3548.125182][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.125182][ T254] netdev_get_by_index+0x5e/0x80 [ 3548.125182][ T254] fib6_nh_init+0x3d8/0x1580 [ 3548.125182][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3548.125182][ T254] ip6_route_add+0x1c/0x140 [ 3548.125182][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3548.125182][ T254] inet6_addr_add+0x4f8/0xa40 [ 3548.125182][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3548.125182][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3548.125182][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.125182][ T254] netlink_unicast+0x449/0x710 [ 3548.125182][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.125182][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.125182][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.125182][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.125182][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.125182][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3548.125182][ T254] [ 3548.127478][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.127478][ T254] netdev_get_by_index+0x5e/0x80 [ 3548.127478][ T254] fib6_nh_init+0x3d8/0x1580 [ 3548.127478][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3548.127478][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3548.127478][ T254] ipv6_add_addr+0x411/0x2000 [ 3548.127478][ T254] inet6_addr_add+0x30e/0xa40 [ 3548.127478][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3548.127478][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3548.127478][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.127478][ T254] netlink_unicast+0x449/0x710 [ 3548.127478][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.127478][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.127478][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.127478][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.127478][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.127478][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3548.127478][ T254] [ 3548.129759][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.129759][ T254] netdev_get_by_index+0x5e/0x80 [ 3548.129759][ T254] fib6_nh_init+0x3d8/0x1580 [ 3548.129759][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3548.129759][ T254] ip6_route_add+0x1c/0x140 [ 3548.129759][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3548.129759][ T254] addrconf_add_dev+0xe2/0x170 [ 3548.129759][ T254] inet6_addr_add+0x12f/0xa40 [ 3548.129759][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3548.129759][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3548.129759][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.129759][ T254] netlink_unicast+0x449/0x710 [ 3548.129759][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.129759][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.129759][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.129759][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.129759][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.129759][ T254] [ 3548.132082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.132082][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3548.132082][ T254] ipv6_find_idev+0x102/0x170 [ 3548.132082][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3548.132082][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3548.132082][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.132082][ T254] netlink_unicast+0x449/0x710 [ 3548.132082][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.132082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.132082][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.132082][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.132082][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.132082][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3548.132082][ T254] [ 3548.133885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3548.133885][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3548.133885][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3548.133885][ T254] ipv6_find_idev+0x102/0x170 [ 3548.133885][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3548.133885][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3548.133885][ T254] netlink_rcv_skb+0x130/0x360 [ 3548.133885][ T254] netlink_unicast+0x449/0x710 [ 3548.133885][ T254] netlink_sendmsg+0x723/0xbe0 [ 3548.133885][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3548.133885][ T254] ___sys_sendmsg+0xee/0x170 [ 3548.133885][ T254] __sys_sendmsg+0xcd/0x170 [ 3548.133885][ T254] do_syscall_64+0xc6/0x1e0 [ 3548.133885][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3548.133885][ T254] [ 3558.175925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3558.176747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.176747][ T254] dst_init+0x84/0x4a0 [ 3558.176747][ T254] dst_alloc+0x97/0x150 [ 3558.176747][ T254] ip6_dst_alloc+0x23/0x90 [ 3558.176747][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3558.176747][ T254] ip6_pol_route+0x56f/0x840 [ 3558.176747][ T254] fib6_rule_lookup+0x334/0x630 [ 3558.176747][ T254] ip6_route_output_flags+0x259/0x480 [ 3558.176747][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3558.176747][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3558.176747][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.176747][ T254] netlink_unicast+0x449/0x710 [ 3558.176747][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.176747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.176747][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.176747][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.176747][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.176747][ T254] [ 3558.178998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.178998][ T254] netdev_get_by_index+0x5e/0x80 [ 3558.178998][ T254] fib6_nh_init+0x3d8/0x1580 [ 3558.178998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3558.178998][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3558.178998][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3558.178998][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3558.178998][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3558.178998][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3558.178998][ T254] addrconf_dad_begin+0x310/0x670 [ 3558.178998][ T254] addrconf_dad_work+0x10b/0xab0 [ 3558.178998][ T254] process_one_work+0x84d/0x18a0 [ 3558.178998][ T254] worker_thread+0x587/0xd30 [ 3558.178998][ T254] kthread+0x28a/0x350 [ 3558.178998][ T254] ret_from_fork+0x31/0x70 [ 3558.178998][ T254] ret_from_fork_asm+0x1a/0x30 [ 3558.178998][ T254] [ 3558.181258][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.181258][ T254] netdev_get_by_index+0x5e/0x80 [ 3558.181258][ T254] fib6_nh_init+0x3d8/0x1580 [ 3558.181258][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3558.181258][ T254] ip6_route_add+0x1c/0x140 [ 3558.181258][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3558.181258][ T254] inet6_addr_add+0x4f8/0xa40 [ 3558.181258][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.181258][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.181258][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.181258][ T254] netlink_unicast+0x449/0x710 [ 3558.181258][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.181258][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.181258][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.181258][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.181258][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.181258][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.181258][ T254] [ 3558.183600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.183600][ T254] netdev_get_by_index+0x5e/0x80 [ 3558.183600][ T254] fib6_nh_init+0x3d8/0x1580 [ 3558.183600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3558.183600][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3558.183600][ T254] ipv6_add_addr+0x411/0x2000 [ 3558.183600][ T254] inet6_addr_add+0x30e/0xa40 [ 3558.183600][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.183600][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.183600][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.183600][ T254] netlink_unicast+0x449/0x710 [ 3558.183600][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.183600][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.183600][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.183600][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.183600][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.183600][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.183600][ T254] [ 3558.185936][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.185936][ T254] netdev_get_by_index+0x5e/0x80 [ 3558.185936][ T254] fib6_nh_init+0x3d8/0x1580 [ 3558.185936][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3558.185936][ T254] ip6_route_add+0x1c/0x140 [ 3558.185936][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3558.185936][ T254] addrconf_add_dev+0xe2/0x170 [ 3558.185936][ T254] inet6_addr_add+0x12f/0xa40 [ 3558.185936][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3558.185936][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.185936][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.185936][ T254] netlink_unicast+0x449/0x710 [ 3558.185936][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.185936][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.185936][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.185936][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.185936][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.185936][ T254] [ 3558.188328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.188328][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3558.188328][ T254] ipv6_find_idev+0x102/0x170 [ 3558.188328][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.188328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.188328][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.188328][ T254] netlink_unicast+0x449/0x710 [ 3558.188328][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.188328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.188328][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.188328][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.188328][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.188328][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.188328][ T254] [ 3558.190100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3558.190100][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3558.190100][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3558.190100][ T254] ipv6_find_idev+0x102/0x170 [ 3558.190100][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3558.190100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3558.190100][ T254] netlink_rcv_skb+0x130/0x360 [ 3558.190100][ T254] netlink_unicast+0x449/0x710 [ 3558.190100][ T254] netlink_sendmsg+0x723/0xbe0 [ 3558.190100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3558.190100][ T254] ___sys_sendmsg+0xee/0x170 [ 3558.190100][ T254] __sys_sendmsg+0xcd/0x170 [ 3558.190100][ T254] do_syscall_64+0xc6/0x1e0 [ 3558.190100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3558.190100][ T254] [ 3568.431909][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3568.432836][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.432836][ T254] dst_init+0x84/0x4a0 [ 3568.432836][ T254] dst_alloc+0x97/0x150 [ 3568.432836][ T254] ip6_dst_alloc+0x23/0x90 [ 3568.432836][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3568.432836][ T254] ip6_pol_route+0x56f/0x840 [ 3568.432836][ T254] fib6_rule_lookup+0x334/0x630 [ 3568.432836][ T254] ip6_route_output_flags+0x259/0x480 [ 3568.432836][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3568.432836][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3568.432836][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.432836][ T254] netlink_unicast+0x449/0x710 [ 3568.432836][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.432836][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.432836][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.432836][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.432836][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.432836][ T254] [ 3568.435075][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.435075][ T254] netdev_get_by_index+0x5e/0x80 [ 3568.435075][ T254] fib6_nh_init+0x3d8/0x1580 [ 3568.435075][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3568.435075][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3568.435075][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3568.435075][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3568.435075][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3568.435075][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3568.435075][ T254] addrconf_dad_begin+0x310/0x670 [ 3568.435075][ T254] addrconf_dad_work+0x10b/0xab0 [ 3568.435075][ T254] process_one_work+0x84d/0x18a0 [ 3568.435075][ T254] worker_thread+0x587/0xd30 [ 3568.435075][ T254] kthread+0x28a/0x350 [ 3568.435075][ T254] ret_from_fork+0x31/0x70 [ 3568.435075][ T254] ret_from_fork_asm+0x1a/0x30 [ 3568.435075][ T254] [ 3568.437327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.437327][ T254] netdev_get_by_index+0x5e/0x80 [ 3568.437327][ T254] fib6_nh_init+0x3d8/0x1580 [ 3568.437327][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3568.437327][ T254] ip6_route_add+0x1c/0x140 [ 3568.437327][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3568.437327][ T254] inet6_addr_add+0x4f8/0xa40 [ 3568.437327][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.437327][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.437327][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.437327][ T254] netlink_unicast+0x449/0x710 [ 3568.437327][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.437327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.437327][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.437327][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.437327][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.437327][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.437327][ T254] [ 3568.439671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.439671][ T254] netdev_get_by_index+0x5e/0x80 [ 3568.439671][ T254] fib6_nh_init+0x3d8/0x1580 [ 3568.439671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3568.439671][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3568.439671][ T254] ipv6_add_addr+0x411/0x2000 [ 3568.439671][ T254] inet6_addr_add+0x30e/0xa40 [ 3568.439671][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.439671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.439671][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.439671][ T254] netlink_unicast+0x449/0x710 [ 3568.439671][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.439671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.439671][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.439671][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.439671][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.439671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.439671][ T254] [ 3568.442027][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.442027][ T254] netdev_get_by_index+0x5e/0x80 [ 3568.442027][ T254] fib6_nh_init+0x3d8/0x1580 [ 3568.442027][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3568.442027][ T254] ip6_route_add+0x1c/0x140 [ 3568.442027][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3568.442027][ T254] addrconf_add_dev+0xe2/0x170 [ 3568.442027][ T254] inet6_addr_add+0x12f/0xa40 [ 3568.442027][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3568.442027][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.442027][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.442027][ T254] netlink_unicast+0x449/0x710 [ 3568.442027][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.442027][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.442027][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.442027][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.442027][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.442027][ T254] [ 3568.444322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.444322][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3568.444322][ T254] ipv6_find_idev+0x102/0x170 [ 3568.444322][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.444322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.444322][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.444322][ T254] netlink_unicast+0x449/0x710 [ 3568.444322][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.444322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.444322][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.444322][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.444322][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.444322][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.444322][ T254] [ 3568.446135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3568.446135][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3568.446135][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3568.446135][ T254] ipv6_find_idev+0x102/0x170 [ 3568.446135][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3568.446135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3568.446135][ T254] netlink_rcv_skb+0x130/0x360 [ 3568.446135][ T254] netlink_unicast+0x449/0x710 [ 3568.446135][ T254] netlink_sendmsg+0x723/0xbe0 [ 3568.446135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3568.446135][ T254] ___sys_sendmsg+0xee/0x170 [ 3568.446135][ T254] __sys_sendmsg+0xcd/0x170 [ 3568.446135][ T254] do_syscall_64+0xc6/0x1e0 [ 3568.446135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3568.446135][ T254] [ 3578.687967][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3578.688693][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.688693][ T254] dst_init+0x84/0x4a0 [ 3578.688693][ T254] dst_alloc+0x97/0x150 [ 3578.688693][ T254] ip6_dst_alloc+0x23/0x90 [ 3578.688693][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3578.688693][ T254] ip6_pol_route+0x56f/0x840 [ 3578.688693][ T254] fib6_rule_lookup+0x334/0x630 [ 3578.688693][ T254] ip6_route_output_flags+0x259/0x480 [ 3578.688693][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3578.688693][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3578.688693][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.688693][ T254] netlink_unicast+0x449/0x710 [ 3578.688693][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.688693][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.688693][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.688693][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.688693][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.688693][ T254] [ 3578.690940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.690940][ T254] netdev_get_by_index+0x5e/0x80 [ 3578.690940][ T254] fib6_nh_init+0x3d8/0x1580 [ 3578.690940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3578.690940][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3578.690940][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3578.690940][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3578.690940][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3578.690940][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3578.690940][ T254] addrconf_dad_begin+0x310/0x670 [ 3578.690940][ T254] addrconf_dad_work+0x10b/0xab0 [ 3578.690940][ T254] process_one_work+0x84d/0x18a0 [ 3578.690940][ T254] worker_thread+0x587/0xd30 [ 3578.690940][ T254] kthread+0x28a/0x350 [ 3578.690940][ T254] ret_from_fork+0x31/0x70 [ 3578.690940][ T254] ret_from_fork_asm+0x1a/0x30 [ 3578.690940][ T254] [ 3578.693110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.693110][ T254] netdev_get_by_index+0x5e/0x80 [ 3578.693110][ T254] fib6_nh_init+0x3d8/0x1580 [ 3578.693110][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3578.693110][ T254] ip6_route_add+0x1c/0x140 [ 3578.693110][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3578.693110][ T254] inet6_addr_add+0x4f8/0xa40 [ 3578.693110][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.693110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.693110][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.693110][ T254] netlink_unicast+0x449/0x710 [ 3578.693110][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.693110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.693110][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.693110][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.693110][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.693110][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.693110][ T254] [ 3578.695376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.695376][ T254] netdev_get_by_index+0x5e/0x80 [ 3578.695376][ T254] fib6_nh_init+0x3d8/0x1580 [ 3578.695376][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3578.695376][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3578.695376][ T254] ipv6_add_addr+0x411/0x2000 [ 3578.695376][ T254] inet6_addr_add+0x30e/0xa40 [ 3578.695376][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.695376][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.695376][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.695376][ T254] netlink_unicast+0x449/0x710 [ 3578.695376][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.695376][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.695376][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.695376][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.695376][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.695376][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.695376][ T254] [ 3578.697630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.697630][ T254] netdev_get_by_index+0x5e/0x80 [ 3578.697630][ T254] fib6_nh_init+0x3d8/0x1580 [ 3578.697630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3578.697630][ T254] ip6_route_add+0x1c/0x140 [ 3578.697630][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3578.697630][ T254] addrconf_add_dev+0xe2/0x170 [ 3578.697630][ T254] inet6_addr_add+0x12f/0xa40 [ 3578.697630][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3578.697630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.697630][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.697630][ T254] netlink_unicast+0x449/0x710 [ 3578.697630][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.697630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.697630][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.697630][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.697630][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.697630][ T254] [ 3578.699843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.699843][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3578.699843][ T254] ipv6_find_idev+0x102/0x170 [ 3578.699843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.699843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.699843][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.699843][ T254] netlink_unicast+0x449/0x710 [ 3578.699843][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.699843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.699843][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.699843][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.699843][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.699843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.699843][ T254] [ 3578.701582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3578.701582][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3578.701582][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3578.701582][ T254] ipv6_find_idev+0x102/0x170 [ 3578.701582][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3578.701582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3578.701582][ T254] netlink_rcv_skb+0x130/0x360 [ 3578.701582][ T254] netlink_unicast+0x449/0x710 [ 3578.701582][ T254] netlink_sendmsg+0x723/0xbe0 [ 3578.701582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3578.701582][ T254] ___sys_sendmsg+0xee/0x170 [ 3578.701582][ T254] __sys_sendmsg+0xcd/0x170 [ 3578.701582][ T254] do_syscall_64+0xc6/0x1e0 [ 3578.701582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3578.701582][ T254] [ 3588.775934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3588.776588][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.776588][ T254] dst_init+0x84/0x4a0 [ 3588.776588][ T254] dst_alloc+0x97/0x150 [ 3588.776588][ T254] ip6_dst_alloc+0x23/0x90 [ 3588.776588][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3588.776588][ T254] ip6_pol_route+0x56f/0x840 [ 3588.776588][ T254] fib6_rule_lookup+0x334/0x630 [ 3588.776588][ T254] ip6_route_output_flags+0x259/0x480 [ 3588.776588][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3588.776588][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3588.776588][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.776588][ T254] netlink_unicast+0x449/0x710 [ 3588.776588][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.776588][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.776588][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.776588][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.776588][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.776588][ T254] [ 3588.778746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.778746][ T254] netdev_get_by_index+0x5e/0x80 [ 3588.778746][ T254] fib6_nh_init+0x3d8/0x1580 [ 3588.778746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3588.778746][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3588.778746][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3588.778746][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3588.778746][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3588.778746][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3588.778746][ T254] addrconf_dad_begin+0x310/0x670 [ 3588.778746][ T254] addrconf_dad_work+0x10b/0xab0 [ 3588.778746][ T254] process_one_work+0x84d/0x18a0 [ 3588.778746][ T254] worker_thread+0x587/0xd30 [ 3588.778746][ T254] kthread+0x28a/0x350 [ 3588.778746][ T254] ret_from_fork+0x31/0x70 [ 3588.778746][ T254] ret_from_fork_asm+0x1a/0x30 [ 3588.778746][ T254] [ 3588.780897][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.780897][ T254] netdev_get_by_index+0x5e/0x80 [ 3588.780897][ T254] fib6_nh_init+0x3d8/0x1580 [ 3588.780897][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3588.780897][ T254] ip6_route_add+0x1c/0x140 [ 3588.780897][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3588.780897][ T254] inet6_addr_add+0x4f8/0xa40 [ 3588.780897][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3588.780897][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3588.780897][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.780897][ T254] netlink_unicast+0x449/0x710 [ 3588.780897][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.780897][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.780897][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.780897][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.780897][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.780897][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3588.780897][ T254] [ 3588.783188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.783188][ T254] netdev_get_by_index+0x5e/0x80 [ 3588.783188][ T254] fib6_nh_init+0x3d8/0x1580 [ 3588.783188][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3588.783188][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3588.783188][ T254] ipv6_add_addr+0x411/0x2000 [ 3588.783188][ T254] inet6_addr_add+0x30e/0xa40 [ 3588.783188][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3588.783188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3588.783188][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.783188][ T254] netlink_unicast+0x449/0x710 [ 3588.783188][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.783188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.783188][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.783188][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.783188][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.783188][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3588.783188][ T254] [ 3588.785409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.785409][ T254] netdev_get_by_index+0x5e/0x80 [ 3588.785409][ T254] fib6_nh_init+0x3d8/0x1580 [ 3588.785409][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3588.785409][ T254] ip6_route_add+0x1c/0x140 [ 3588.785409][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3588.785409][ T254] addrconf_add_dev+0xe2/0x170 [ 3588.785409][ T254] inet6_addr_add+0x12f/0xa40 [ 3588.785409][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3588.785409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3588.785409][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.785409][ T254] netlink_unicast+0x449/0x710 [ 3588.785409][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.785409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.785409][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.785409][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.785409][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.785409][ T254] [ 3588.787630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.787630][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3588.787630][ T254] ipv6_find_idev+0x102/0x170 [ 3588.787630][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3588.787630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3588.787630][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.787630][ T254] netlink_unicast+0x449/0x710 [ 3588.787630][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.787630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.787630][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.787630][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.787630][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.787630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3588.787630][ T254] [ 3588.789306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3588.789306][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3588.789306][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3588.789306][ T254] ipv6_find_idev+0x102/0x170 [ 3588.789306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3588.789306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3588.789306][ T254] netlink_rcv_skb+0x130/0x360 [ 3588.789306][ T254] netlink_unicast+0x449/0x710 [ 3588.789306][ T254] netlink_sendmsg+0x723/0xbe0 [ 3588.789306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3588.789306][ T254] ___sys_sendmsg+0xee/0x170 [ 3588.789306][ T254] __sys_sendmsg+0xcd/0x170 [ 3588.789306][ T254] do_syscall_64+0xc6/0x1e0 [ 3588.789306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3588.789306][ T254] [ 3599.031950][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3599.032689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.032689][ T254] dst_init+0x84/0x4a0 [ 3599.032689][ T254] dst_alloc+0x97/0x150 [ 3599.032689][ T254] ip6_dst_alloc+0x23/0x90 [ 3599.032689][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3599.032689][ T254] ip6_pol_route+0x56f/0x840 [ 3599.032689][ T254] fib6_rule_lookup+0x334/0x630 [ 3599.032689][ T254] ip6_route_output_flags+0x259/0x480 [ 3599.032689][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3599.032689][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3599.032689][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.032689][ T254] netlink_unicast+0x449/0x710 [ 3599.032689][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.032689][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.032689][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.032689][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.032689][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.032689][ T254] [ 3599.034867][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.034867][ T254] netdev_get_by_index+0x5e/0x80 [ 3599.034867][ T254] fib6_nh_init+0x3d8/0x1580 [ 3599.034867][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3599.034867][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3599.034867][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3599.034867][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3599.034867][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3599.034867][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3599.034867][ T254] addrconf_dad_begin+0x310/0x670 [ 3599.034867][ T254] addrconf_dad_work+0x10b/0xab0 [ 3599.034867][ T254] process_one_work+0x84d/0x18a0 [ 3599.034867][ T254] worker_thread+0x587/0xd30 [ 3599.034867][ T254] kthread+0x28a/0x350 [ 3599.034867][ T254] ret_from_fork+0x31/0x70 [ 3599.034867][ T254] ret_from_fork_asm+0x1a/0x30 [ 3599.034867][ T254] [ 3599.036971][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.036971][ T254] netdev_get_by_index+0x5e/0x80 [ 3599.036971][ T254] fib6_nh_init+0x3d8/0x1580 [ 3599.036971][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3599.036971][ T254] ip6_route_add+0x1c/0x140 [ 3599.036971][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3599.036971][ T254] inet6_addr_add+0x4f8/0xa40 [ 3599.036971][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.036971][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.036971][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.036971][ T254] netlink_unicast+0x449/0x710 [ 3599.036971][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.036971][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.036971][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.036971][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.036971][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.036971][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.036971][ T254] [ 3599.039208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.039208][ T254] netdev_get_by_index+0x5e/0x80 [ 3599.039208][ T254] fib6_nh_init+0x3d8/0x1580 [ 3599.039208][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3599.039208][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3599.039208][ T254] ipv6_add_addr+0x411/0x2000 [ 3599.039208][ T254] inet6_addr_add+0x30e/0xa40 [ 3599.039208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.039208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.039208][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.039208][ T254] netlink_unicast+0x449/0x710 [ 3599.039208][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.039208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.039208][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.039208][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.039208][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.039208][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.039208][ T254] [ 3599.041472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.041472][ T254] netdev_get_by_index+0x5e/0x80 [ 3599.041472][ T254] fib6_nh_init+0x3d8/0x1580 [ 3599.041472][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3599.041472][ T254] ip6_route_add+0x1c/0x140 [ 3599.041472][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3599.041472][ T254] addrconf_add_dev+0xe2/0x170 [ 3599.041472][ T254] inet6_addr_add+0x12f/0xa40 [ 3599.041472][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3599.041472][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.041472][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.041472][ T254] netlink_unicast+0x449/0x710 [ 3599.041472][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.041472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.041472][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.041472][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.041472][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.041472][ T254] [ 3599.043614][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.043614][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3599.043614][ T254] ipv6_find_idev+0x102/0x170 [ 3599.043614][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.043614][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.043614][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.043614][ T254] netlink_unicast+0x449/0x710 [ 3599.043614][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.043614][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.043614][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.043614][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.043614][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.043614][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.043614][ T254] [ 3599.045300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3599.045300][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3599.045300][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3599.045300][ T254] ipv6_find_idev+0x102/0x170 [ 3599.045300][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3599.045300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3599.045300][ T254] netlink_rcv_skb+0x130/0x360 [ 3599.045300][ T254] netlink_unicast+0x449/0x710 [ 3599.045300][ T254] netlink_sendmsg+0x723/0xbe0 [ 3599.045300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3599.045300][ T254] ___sys_sendmsg+0xee/0x170 [ 3599.045300][ T254] __sys_sendmsg+0xcd/0x170 [ 3599.045300][ T254] do_syscall_64+0xc6/0x1e0 [ 3599.045300][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3599.045300][ T254] [ 3609.287865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3609.288399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.288399][ T254] dst_init+0x84/0x4a0 [ 3609.288399][ T254] dst_alloc+0x97/0x150 [ 3609.288399][ T254] ip6_dst_alloc+0x23/0x90 [ 3609.288399][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3609.288399][ T254] ip6_pol_route+0x56f/0x840 [ 3609.288399][ T254] fib6_rule_lookup+0x334/0x630 [ 3609.288399][ T254] ip6_route_output_flags+0x259/0x480 [ 3609.288399][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3609.288399][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3609.288399][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.288399][ T254] netlink_unicast+0x449/0x710 [ 3609.288399][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.288399][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.288399][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.288399][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.288399][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.288399][ T254] [ 3609.290668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.290668][ T254] netdev_get_by_index+0x5e/0x80 [ 3609.290668][ T254] fib6_nh_init+0x3d8/0x1580 [ 3609.290668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3609.290668][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3609.290668][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3609.290668][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3609.290668][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3609.290668][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3609.290668][ T254] addrconf_dad_begin+0x310/0x670 [ 3609.290668][ T254] addrconf_dad_work+0x10b/0xab0 [ 3609.290668][ T254] process_one_work+0x84d/0x18a0 [ 3609.290668][ T254] worker_thread+0x587/0xd30 [ 3609.290668][ T254] kthread+0x28a/0x350 [ 3609.290668][ T254] ret_from_fork+0x31/0x70 [ 3609.290668][ T254] ret_from_fork_asm+0x1a/0x30 [ 3609.290668][ T254] [ 3609.292806][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.292806][ T254] netdev_get_by_index+0x5e/0x80 [ 3609.292806][ T254] fib6_nh_init+0x3d8/0x1580 [ 3609.292806][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3609.292806][ T254] ip6_route_add+0x1c/0x140 [ 3609.292806][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3609.292806][ T254] inet6_addr_add+0x4f8/0xa40 [ 3609.292806][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.292806][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.292806][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.292806][ T254] netlink_unicast+0x449/0x710 [ 3609.292806][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.292806][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.292806][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.292806][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.292806][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.292806][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.292806][ T254] [ 3609.295024][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.295024][ T254] netdev_get_by_index+0x5e/0x80 [ 3609.295024][ T254] fib6_nh_init+0x3d8/0x1580 [ 3609.295024][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3609.295024][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3609.295024][ T254] ipv6_add_addr+0x411/0x2000 [ 3609.295024][ T254] inet6_addr_add+0x30e/0xa40 [ 3609.295024][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.295024][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.295024][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.295024][ T254] netlink_unicast+0x449/0x710 [ 3609.295024][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.295024][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.295024][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.295024][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.295024][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.295024][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.295024][ T254] [ 3609.297314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.297314][ T254] netdev_get_by_index+0x5e/0x80 [ 3609.297314][ T254] fib6_nh_init+0x3d8/0x1580 [ 3609.297314][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3609.297314][ T254] ip6_route_add+0x1c/0x140 [ 3609.297314][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3609.297314][ T254] addrconf_add_dev+0xe2/0x170 [ 3609.297314][ T254] inet6_addr_add+0x12f/0xa40 [ 3609.297314][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3609.297314][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.297314][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.297314][ T254] netlink_unicast+0x449/0x710 [ 3609.297314][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.297314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.297314][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.297314][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.297314][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.297314][ T254] [ 3609.299533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.299533][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3609.299533][ T254] ipv6_find_idev+0x102/0x170 [ 3609.299533][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.299533][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.299533][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.299533][ T254] netlink_unicast+0x449/0x710 [ 3609.299533][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.299533][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.299533][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.299533][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.299533][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.299533][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.299533][ T254] [ 3609.301309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3609.301309][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3609.301309][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3609.301309][ T254] ipv6_find_idev+0x102/0x170 [ 3609.301309][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3609.301309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3609.301309][ T254] netlink_rcv_skb+0x130/0x360 [ 3609.301309][ T254] netlink_unicast+0x449/0x710 [ 3609.301309][ T254] netlink_sendmsg+0x723/0xbe0 [ 3609.301309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3609.301309][ T254] ___sys_sendmsg+0xee/0x170 [ 3609.301309][ T254] __sys_sendmsg+0xcd/0x170 [ 3609.301309][ T254] do_syscall_64+0xc6/0x1e0 [ 3609.301309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3609.301309][ T254] [ 3619.399850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3619.400389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.400389][ T254] dst_init+0x84/0x4a0 [ 3619.400389][ T254] dst_alloc+0x97/0x150 [ 3619.400389][ T254] ip6_dst_alloc+0x23/0x90 [ 3619.400389][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3619.400389][ T254] ip6_pol_route+0x56f/0x840 [ 3619.400389][ T254] fib6_rule_lookup+0x334/0x630 [ 3619.400389][ T254] ip6_route_output_flags+0x259/0x480 [ 3619.400389][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3619.400389][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3619.400389][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.400389][ T254] netlink_unicast+0x449/0x710 [ 3619.400389][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.400389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.400389][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.400389][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.400389][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.400389][ T254] [ 3619.402636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.402636][ T254] netdev_get_by_index+0x5e/0x80 [ 3619.402636][ T254] fib6_nh_init+0x3d8/0x1580 [ 3619.402636][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3619.402636][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3619.402636][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3619.402636][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3619.402636][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3619.402636][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3619.402636][ T254] addrconf_dad_begin+0x310/0x670 [ 3619.402636][ T254] addrconf_dad_work+0x10b/0xab0 [ 3619.402636][ T254] process_one_work+0x84d/0x18a0 [ 3619.402636][ T254] worker_thread+0x587/0xd30 [ 3619.402636][ T254] kthread+0x28a/0x350 [ 3619.402636][ T254] ret_from_fork+0x31/0x70 [ 3619.402636][ T254] ret_from_fork_asm+0x1a/0x30 [ 3619.402636][ T254] [ 3619.404776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.404776][ T254] netdev_get_by_index+0x5e/0x80 [ 3619.404776][ T254] fib6_nh_init+0x3d8/0x1580 [ 3619.404776][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3619.404776][ T254] ip6_route_add+0x1c/0x140 [ 3619.404776][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3619.404776][ T254] inet6_addr_add+0x4f8/0xa40 [ 3619.404776][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.404776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.404776][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.404776][ T254] netlink_unicast+0x449/0x710 [ 3619.404776][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.404776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.404776][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.404776][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.404776][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.404776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.404776][ T254] [ 3619.407018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.407018][ T254] netdev_get_by_index+0x5e/0x80 [ 3619.407018][ T254] fib6_nh_init+0x3d8/0x1580 [ 3619.407018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3619.407018][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3619.407018][ T254] ipv6_add_addr+0x411/0x2000 [ 3619.407018][ T254] inet6_addr_add+0x30e/0xa40 [ 3619.407018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.407018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.407018][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.407018][ T254] netlink_unicast+0x449/0x710 [ 3619.407018][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.407018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.407018][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.407018][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.407018][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.407018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.407018][ T254] [ 3619.409271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.409271][ T254] netdev_get_by_index+0x5e/0x80 [ 3619.409271][ T254] fib6_nh_init+0x3d8/0x1580 [ 3619.409271][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3619.409271][ T254] ip6_route_add+0x1c/0x140 [ 3619.409271][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3619.409271][ T254] addrconf_add_dev+0xe2/0x170 [ 3619.409271][ T254] inet6_addr_add+0x12f/0xa40 [ 3619.409271][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3619.409271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.409271][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.409271][ T254] netlink_unicast+0x449/0x710 [ 3619.409271][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.409271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.409271][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.409271][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.409271][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.409271][ T254] [ 3619.411501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.411501][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3619.411501][ T254] ipv6_find_idev+0x102/0x170 [ 3619.411501][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.411501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.411501][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.411501][ T254] netlink_unicast+0x449/0x710 [ 3619.411501][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.411501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.411501][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.411501][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.411501][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.411501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.411501][ T254] [ 3619.413201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3619.413201][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3619.413201][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3619.413201][ T254] ipv6_find_idev+0x102/0x170 [ 3619.413201][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3619.413201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3619.413201][ T254] netlink_rcv_skb+0x130/0x360 [ 3619.413201][ T254] netlink_unicast+0x449/0x710 [ 3619.413201][ T254] netlink_sendmsg+0x723/0xbe0 [ 3619.413201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3619.413201][ T254] ___sys_sendmsg+0xee/0x170 [ 3619.413201][ T254] __sys_sendmsg+0xcd/0x170 [ 3619.413201][ T254] do_syscall_64+0xc6/0x1e0 [ 3619.413201][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3619.413201][ T254] [ 3629.655881][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3629.656435][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.656435][ T254] dst_init+0x84/0x4a0 [ 3629.656435][ T254] dst_alloc+0x97/0x150 [ 3629.656435][ T254] ip6_dst_alloc+0x23/0x90 [ 3629.656435][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3629.656435][ T254] ip6_pol_route+0x56f/0x840 [ 3629.656435][ T254] fib6_rule_lookup+0x334/0x630 [ 3629.656435][ T254] ip6_route_output_flags+0x259/0x480 [ 3629.656435][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3629.656435][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3629.656435][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.656435][ T254] netlink_unicast+0x449/0x710 [ 3629.656435][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.656435][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.656435][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.656435][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.656435][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.656435][ T254] [ 3629.658672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.658672][ T254] netdev_get_by_index+0x5e/0x80 [ 3629.658672][ T254] fib6_nh_init+0x3d8/0x1580 [ 3629.658672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3629.658672][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3629.658672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3629.658672][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3629.658672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3629.658672][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3629.658672][ T254] addrconf_dad_begin+0x310/0x670 [ 3629.658672][ T254] addrconf_dad_work+0x10b/0xab0 [ 3629.658672][ T254] process_one_work+0x84d/0x18a0 [ 3629.658672][ T254] worker_thread+0x587/0xd30 [ 3629.658672][ T254] kthread+0x28a/0x350 [ 3629.658672][ T254] ret_from_fork+0x31/0x70 [ 3629.658672][ T254] ret_from_fork_asm+0x1a/0x30 [ 3629.658672][ T254] [ 3629.660835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.660835][ T254] netdev_get_by_index+0x5e/0x80 [ 3629.660835][ T254] fib6_nh_init+0x3d8/0x1580 [ 3629.660835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3629.660835][ T254] ip6_route_add+0x1c/0x140 [ 3629.660835][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3629.660835][ T254] inet6_addr_add+0x4f8/0xa40 [ 3629.660835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.660835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.660835][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.660835][ T254] netlink_unicast+0x449/0x710 [ 3629.660835][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.660835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.660835][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.660835][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.660835][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.660835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.660835][ T254] [ 3629.663077][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.663077][ T254] netdev_get_by_index+0x5e/0x80 [ 3629.663077][ T254] fib6_nh_init+0x3d8/0x1580 [ 3629.663077][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3629.663077][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3629.663077][ T254] ipv6_add_addr+0x411/0x2000 [ 3629.663077][ T254] inet6_addr_add+0x30e/0xa40 [ 3629.663077][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.663077][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.663077][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.663077][ T254] netlink_unicast+0x449/0x710 [ 3629.663077][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.663077][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.663077][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.663077][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.663077][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.663077][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.663077][ T254] [ 3629.665316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.665316][ T254] netdev_get_by_index+0x5e/0x80 [ 3629.665316][ T254] fib6_nh_init+0x3d8/0x1580 [ 3629.665316][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3629.665316][ T254] ip6_route_add+0x1c/0x140 [ 3629.665316][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3629.665316][ T254] addrconf_add_dev+0xe2/0x170 [ 3629.665316][ T254] inet6_addr_add+0x12f/0xa40 [ 3629.665316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3629.665316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.665316][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.665316][ T254] netlink_unicast+0x449/0x710 [ 3629.665316][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.665316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.665316][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.665316][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.665316][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.665316][ T254] [ 3629.667532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.667532][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3629.667532][ T254] ipv6_find_idev+0x102/0x170 [ 3629.667532][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.667532][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.667532][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.667532][ T254] netlink_unicast+0x449/0x710 [ 3629.667532][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.667532][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.667532][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.667532][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.667532][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.667532][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.667532][ T254] [ 3629.669260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3629.669260][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3629.669260][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3629.669260][ T254] ipv6_find_idev+0x102/0x170 [ 3629.669260][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3629.669260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3629.669260][ T254] netlink_rcv_skb+0x130/0x360 [ 3629.669260][ T254] netlink_unicast+0x449/0x710 [ 3629.669260][ T254] netlink_sendmsg+0x723/0xbe0 [ 3629.669260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3629.669260][ T254] ___sys_sendmsg+0xee/0x170 [ 3629.669260][ T254] __sys_sendmsg+0xcd/0x170 [ 3629.669260][ T254] do_syscall_64+0xc6/0x1e0 [ 3629.669260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3629.669260][ T254] [ 3639.911867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3639.912387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.912387][ T254] dst_init+0x84/0x4a0 [ 3639.912387][ T254] dst_alloc+0x97/0x150 [ 3639.912387][ T254] ip6_dst_alloc+0x23/0x90 [ 3639.912387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3639.912387][ T254] ip6_pol_route+0x56f/0x840 [ 3639.912387][ T254] fib6_rule_lookup+0x334/0x630 [ 3639.912387][ T254] ip6_route_output_flags+0x259/0x480 [ 3639.912387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3639.912387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3639.912387][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.912387][ T254] netlink_unicast+0x449/0x710 [ 3639.912387][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.912387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.912387][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.912387][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.912387][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.912387][ T254] [ 3639.914611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.914611][ T254] netdev_get_by_index+0x5e/0x80 [ 3639.914611][ T254] fib6_nh_init+0x3d8/0x1580 [ 3639.914611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3639.914611][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3639.914611][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3639.914611][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3639.914611][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3639.914611][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3639.914611][ T254] addrconf_dad_begin+0x310/0x670 [ 3639.914611][ T254] addrconf_dad_work+0x10b/0xab0 [ 3639.914611][ T254] process_one_work+0x84d/0x18a0 [ 3639.914611][ T254] worker_thread+0x587/0xd30 [ 3639.914611][ T254] kthread+0x28a/0x350 [ 3639.914611][ T254] ret_from_fork+0x31/0x70 [ 3639.914611][ T254] ret_from_fork_asm+0x1a/0x30 [ 3639.914611][ T254] [ 3639.916763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.916763][ T254] netdev_get_by_index+0x5e/0x80 [ 3639.916763][ T254] fib6_nh_init+0x3d8/0x1580 [ 3639.916763][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3639.916763][ T254] ip6_route_add+0x1c/0x140 [ 3639.916763][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3639.916763][ T254] inet6_addr_add+0x4f8/0xa40 [ 3639.916763][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3639.916763][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3639.916763][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.916763][ T254] netlink_unicast+0x449/0x710 [ 3639.916763][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.916763][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.916763][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.916763][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.916763][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.916763][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3639.916763][ T254] [ 3639.919015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.919015][ T254] netdev_get_by_index+0x5e/0x80 [ 3639.919015][ T254] fib6_nh_init+0x3d8/0x1580 [ 3639.919015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3639.919015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3639.919015][ T254] ipv6_add_addr+0x411/0x2000 [ 3639.919015][ T254] inet6_addr_add+0x30e/0xa40 [ 3639.919015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3639.919015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3639.919015][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.919015][ T254] netlink_unicast+0x449/0x710 [ 3639.919015][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.919015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.919015][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.919015][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.919015][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.919015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3639.919015][ T254] [ 3639.921388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.921388][ T254] netdev_get_by_index+0x5e/0x80 [ 3639.921388][ T254] fib6_nh_init+0x3d8/0x1580 [ 3639.921388][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3639.921388][ T254] ip6_route_add+0x1c/0x140 [ 3639.921388][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3639.921388][ T254] addrconf_add_dev+0xe2/0x170 [ 3639.921388][ T254] inet6_addr_add+0x12f/0xa40 [ 3639.921388][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3639.921388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3639.921388][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.921388][ T254] netlink_unicast+0x449/0x710 [ 3639.921388][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.921388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.921388][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.921388][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.921388][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.921388][ T254] [ 3639.924126][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.924126][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3639.924126][ T254] ipv6_find_idev+0x102/0x170 [ 3639.924126][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3639.924126][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3639.924126][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.924126][ T254] netlink_unicast+0x449/0x710 [ 3639.924126][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.924126][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.924126][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.924126][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.924126][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.924126][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3639.924126][ T254] [ 3639.925849][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3639.925849][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3639.925849][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3639.925849][ T254] ipv6_find_idev+0x102/0x170 [ 3639.925849][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3639.925849][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3639.925849][ T254] netlink_rcv_skb+0x130/0x360 [ 3639.925849][ T254] netlink_unicast+0x449/0x710 [ 3639.925849][ T254] netlink_sendmsg+0x723/0xbe0 [ 3639.925849][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3639.925849][ T254] ___sys_sendmsg+0xee/0x170 [ 3639.925849][ T254] __sys_sendmsg+0xcd/0x170 [ 3639.925849][ T254] do_syscall_64+0xc6/0x1e0 [ 3639.925849][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3639.925849][ T254] [ 3650.015867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3650.016391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.016391][ T254] dst_init+0x84/0x4a0 [ 3650.016391][ T254] dst_alloc+0x97/0x150 [ 3650.016391][ T254] ip6_dst_alloc+0x23/0x90 [ 3650.016391][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3650.016391][ T254] ip6_pol_route+0x56f/0x840 [ 3650.016391][ T254] fib6_rule_lookup+0x334/0x630 [ 3650.016391][ T254] ip6_route_output_flags+0x259/0x480 [ 3650.016391][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3650.016391][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3650.016391][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.016391][ T254] netlink_unicast+0x449/0x710 [ 3650.016391][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.016391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.016391][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.016391][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.016391][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.016391][ T254] [ 3650.018593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.018593][ T254] netdev_get_by_index+0x5e/0x80 [ 3650.018593][ T254] fib6_nh_init+0x3d8/0x1580 [ 3650.018593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3650.018593][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3650.018593][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3650.018593][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3650.018593][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3650.018593][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3650.018593][ T254] addrconf_dad_begin+0x310/0x670 [ 3650.018593][ T254] addrconf_dad_work+0x10b/0xab0 [ 3650.018593][ T254] process_one_work+0x84d/0x18a0 [ 3650.018593][ T254] worker_thread+0x587/0xd30 [ 3650.018593][ T254] kthread+0x28a/0x350 [ 3650.018593][ T254] ret_from_fork+0x31/0x70 [ 3650.018593][ T254] ret_from_fork_asm+0x1a/0x30 [ 3650.018593][ T254] [ 3650.020788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.020788][ T254] netdev_get_by_index+0x5e/0x80 [ 3650.020788][ T254] fib6_nh_init+0x3d8/0x1580 [ 3650.020788][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3650.020788][ T254] ip6_route_add+0x1c/0x140 [ 3650.020788][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3650.020788][ T254] inet6_addr_add+0x4f8/0xa40 [ 3650.020788][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.020788][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.020788][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.020788][ T254] netlink_unicast+0x449/0x710 [ 3650.020788][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.020788][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.020788][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.020788][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.020788][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.020788][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.020788][ T254] [ 3650.023043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.023043][ T254] netdev_get_by_index+0x5e/0x80 [ 3650.023043][ T254] fib6_nh_init+0x3d8/0x1580 [ 3650.023043][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3650.023043][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3650.023043][ T254] ipv6_add_addr+0x411/0x2000 [ 3650.023043][ T254] inet6_addr_add+0x30e/0xa40 [ 3650.023043][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.023043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.023043][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.023043][ T254] netlink_unicast+0x449/0x710 [ 3650.023043][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.023043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.023043][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.023043][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.023043][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.023043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.023043][ T254] [ 3650.025662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.025662][ T254] netdev_get_by_index+0x5e/0x80 [ 3650.025662][ T254] fib6_nh_init+0x3d8/0x1580 [ 3650.025662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3650.025662][ T254] ip6_route_add+0x1c/0x140 [ 3650.025662][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3650.025662][ T254] addrconf_add_dev+0xe2/0x170 [ 3650.025662][ T254] inet6_addr_add+0x12f/0xa40 [ 3650.025662][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3650.025662][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.025662][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.025662][ T254] netlink_unicast+0x449/0x710 [ 3650.025662][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.025662][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.025662][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.025662][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.025662][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.025662][ T254] [ 3650.027854][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.027854][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3650.027854][ T254] ipv6_find_idev+0x102/0x170 [ 3650.027854][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.027854][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.027854][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.027854][ T254] netlink_unicast+0x449/0x710 [ 3650.027854][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.027854][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.027854][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.027854][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.027854][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.027854][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.027854][ T254] [ 3650.029576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3650.029576][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3650.029576][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3650.029576][ T254] ipv6_find_idev+0x102/0x170 [ 3650.029576][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3650.029576][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3650.029576][ T254] netlink_rcv_skb+0x130/0x360 [ 3650.029576][ T254] netlink_unicast+0x449/0x710 [ 3650.029576][ T254] netlink_sendmsg+0x723/0xbe0 [ 3650.029576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3650.029576][ T254] ___sys_sendmsg+0xee/0x170 [ 3650.029576][ T254] __sys_sendmsg+0xcd/0x170 [ 3650.029576][ T254] do_syscall_64+0xc6/0x1e0 [ 3650.029576][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3650.029576][ T254] [ 3660.279898][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3660.280417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.280417][ T254] dst_init+0x84/0x4a0 [ 3660.280417][ T254] dst_alloc+0x97/0x150 [ 3660.280417][ T254] ip6_dst_alloc+0x23/0x90 [ 3660.280417][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3660.280417][ T254] ip6_pol_route+0x56f/0x840 [ 3660.280417][ T254] fib6_rule_lookup+0x334/0x630 [ 3660.280417][ T254] ip6_route_output_flags+0x259/0x480 [ 3660.280417][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3660.280417][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3660.280417][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.280417][ T254] netlink_unicast+0x449/0x710 [ 3660.280417][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.280417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.280417][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.280417][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.280417][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.280417][ T254] [ 3660.282620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.282620][ T254] netdev_get_by_index+0x5e/0x80 [ 3660.282620][ T254] fib6_nh_init+0x3d8/0x1580 [ 3660.282620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3660.282620][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3660.282620][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3660.282620][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3660.282620][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3660.282620][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3660.282620][ T254] addrconf_dad_begin+0x310/0x670 [ 3660.282620][ T254] addrconf_dad_work+0x10b/0xab0 [ 3660.282620][ T254] process_one_work+0x84d/0x18a0 [ 3660.282620][ T254] worker_thread+0x587/0xd30 [ 3660.282620][ T254] kthread+0x28a/0x350 [ 3660.282620][ T254] ret_from_fork+0x31/0x70 [ 3660.282620][ T254] ret_from_fork_asm+0x1a/0x30 [ 3660.282620][ T254] [ 3660.284776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.284776][ T254] netdev_get_by_index+0x5e/0x80 [ 3660.284776][ T254] fib6_nh_init+0x3d8/0x1580 [ 3660.284776][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3660.284776][ T254] ip6_route_add+0x1c/0x140 [ 3660.284776][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3660.284776][ T254] inet6_addr_add+0x4f8/0xa40 [ 3660.284776][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.284776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.284776][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.284776][ T254] netlink_unicast+0x449/0x710 [ 3660.284776][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.284776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.284776][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.284776][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.284776][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.284776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.284776][ T254] [ 3660.287023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.287023][ T254] netdev_get_by_index+0x5e/0x80 [ 3660.287023][ T254] fib6_nh_init+0x3d8/0x1580 [ 3660.287023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3660.287023][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3660.287023][ T254] ipv6_add_addr+0x411/0x2000 [ 3660.287023][ T254] inet6_addr_add+0x30e/0xa40 [ 3660.287023][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.287023][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.287023][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.287023][ T254] netlink_unicast+0x449/0x710 [ 3660.287023][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.287023][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.287023][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.287023][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.287023][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.287023][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.287023][ T254] [ 3660.289272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.289272][ T254] netdev_get_by_index+0x5e/0x80 [ 3660.289272][ T254] fib6_nh_init+0x3d8/0x1580 [ 3660.289272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3660.289272][ T254] ip6_route_add+0x1c/0x140 [ 3660.289272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3660.289272][ T254] addrconf_add_dev+0xe2/0x170 [ 3660.289272][ T254] inet6_addr_add+0x12f/0xa40 [ 3660.289272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3660.289272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.289272][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.289272][ T254] netlink_unicast+0x449/0x710 [ 3660.289272][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.289272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.289272][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.289272][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.289272][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.289272][ T254] [ 3660.291483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.291483][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3660.291483][ T254] ipv6_find_idev+0x102/0x170 [ 3660.291483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.291483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.291483][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.291483][ T254] netlink_unicast+0x449/0x710 [ 3660.291483][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.291483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.291483][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.291483][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.291483][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.291483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.291483][ T254] [ 3660.293227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3660.293227][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3660.293227][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3660.293227][ T254] ipv6_find_idev+0x102/0x170 [ 3660.293227][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3660.293227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3660.293227][ T254] netlink_rcv_skb+0x130/0x360 [ 3660.293227][ T254] netlink_unicast+0x449/0x710 [ 3660.293227][ T254] netlink_sendmsg+0x723/0xbe0 [ 3660.293227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3660.293227][ T254] ___sys_sendmsg+0xee/0x170 [ 3660.293227][ T254] __sys_sendmsg+0xcd/0x170 [ 3660.293227][ T254] do_syscall_64+0xc6/0x1e0 [ 3660.293227][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3660.293227][ T254] [ 3670.543849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3670.544399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.544399][ T254] dst_init+0x84/0x4a0 [ 3670.544399][ T254] dst_alloc+0x97/0x150 [ 3670.544399][ T254] ip6_dst_alloc+0x23/0x90 [ 3670.544399][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3670.544399][ T254] ip6_pol_route+0x56f/0x840 [ 3670.544399][ T254] fib6_rule_lookup+0x334/0x630 [ 3670.544399][ T254] ip6_route_output_flags+0x259/0x480 [ 3670.544399][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3670.544399][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3670.544399][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.544399][ T254] netlink_unicast+0x449/0x710 [ 3670.544399][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.544399][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.544399][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.544399][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.544399][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.544399][ T254] [ 3670.546608][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.546608][ T254] netdev_get_by_index+0x5e/0x80 [ 3670.546608][ T254] fib6_nh_init+0x3d8/0x1580 [ 3670.546608][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3670.546608][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3670.546608][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3670.546608][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3670.546608][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3670.546608][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3670.546608][ T254] addrconf_dad_begin+0x310/0x670 [ 3670.546608][ T254] addrconf_dad_work+0x10b/0xab0 [ 3670.546608][ T254] process_one_work+0x84d/0x18a0 [ 3670.546608][ T254] worker_thread+0x587/0xd30 [ 3670.546608][ T254] kthread+0x28a/0x350 [ 3670.546608][ T254] ret_from_fork+0x31/0x70 [ 3670.546608][ T254] ret_from_fork_asm+0x1a/0x30 [ 3670.546608][ T254] [ 3670.548852][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.548852][ T254] netdev_get_by_index+0x5e/0x80 [ 3670.548852][ T254] fib6_nh_init+0x3d8/0x1580 [ 3670.548852][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3670.548852][ T254] ip6_route_add+0x1c/0x140 [ 3670.548852][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3670.548852][ T254] inet6_addr_add+0x4f8/0xa40 [ 3670.548852][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3670.548852][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3670.548852][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.548852][ T254] netlink_unicast+0x449/0x710 [ 3670.548852][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.548852][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.548852][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.548852][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.548852][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.548852][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3670.548852][ T254] [ 3670.551110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.551110][ T254] netdev_get_by_index+0x5e/0x80 [ 3670.551110][ T254] fib6_nh_init+0x3d8/0x1580 [ 3670.551110][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3670.551110][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3670.551110][ T254] ipv6_add_addr+0x411/0x2000 [ 3670.551110][ T254] inet6_addr_add+0x30e/0xa40 [ 3670.551110][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3670.551110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3670.551110][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.551110][ T254] netlink_unicast+0x449/0x710 [ 3670.551110][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.551110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.551110][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.551110][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.551110][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.551110][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3670.551110][ T254] [ 3670.553352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.553352][ T254] netdev_get_by_index+0x5e/0x80 [ 3670.553352][ T254] fib6_nh_init+0x3d8/0x1580 [ 3670.553352][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3670.553352][ T254] ip6_route_add+0x1c/0x140 [ 3670.553352][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3670.553352][ T254] addrconf_add_dev+0xe2/0x170 [ 3670.553352][ T254] inet6_addr_add+0x12f/0xa40 [ 3670.553352][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3670.553352][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3670.553352][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.553352][ T254] netlink_unicast+0x449/0x710 [ 3670.553352][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.553352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.553352][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.553352][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.553352][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.553352][ T254] [ 3670.556474][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.556474][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3670.556474][ T254] ipv6_find_idev+0x102/0x170 [ 3670.556474][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3670.556474][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3670.556474][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.556474][ T254] netlink_unicast+0x449/0x710 [ 3670.556474][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.556474][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.556474][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.556474][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.556474][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.556474][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3670.556474][ T254] [ 3670.559312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3670.559312][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3670.559312][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3670.559312][ T254] ipv6_find_idev+0x102/0x170 [ 3670.559312][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3670.559312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3670.559312][ T254] netlink_rcv_skb+0x130/0x360 [ 3670.559312][ T254] netlink_unicast+0x449/0x710 [ 3670.559312][ T254] netlink_sendmsg+0x723/0xbe0 [ 3670.559312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3670.559312][ T254] ___sys_sendmsg+0xee/0x170 [ 3670.559312][ T254] __sys_sendmsg+0xcd/0x170 [ 3670.559312][ T254] do_syscall_64+0xc6/0x1e0 [ 3670.559312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3670.559312][ T254] [ 3680.807916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3680.808609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.808609][ T254] dst_init+0x84/0x4a0 [ 3680.808609][ T254] dst_alloc+0x97/0x150 [ 3680.808609][ T254] ip6_dst_alloc+0x23/0x90 [ 3680.808609][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3680.808609][ T254] ip6_pol_route+0x56f/0x840 [ 3680.808609][ T254] fib6_rule_lookup+0x334/0x630 [ 3680.808609][ T254] ip6_route_output_flags+0x259/0x480 [ 3680.808609][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3680.808609][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3680.808609][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.808609][ T254] netlink_unicast+0x449/0x710 [ 3680.808609][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.808609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.808609][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.808609][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.808609][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.808609][ T254] [ 3680.810817][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.810817][ T254] netdev_get_by_index+0x5e/0x80 [ 3680.810817][ T254] fib6_nh_init+0x3d8/0x1580 [ 3680.810817][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3680.810817][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3680.810817][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3680.810817][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3680.810817][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3680.810817][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3680.810817][ T254] addrconf_dad_begin+0x310/0x670 [ 3680.810817][ T254] addrconf_dad_work+0x10b/0xab0 [ 3680.810817][ T254] process_one_work+0x84d/0x18a0 [ 3680.810817][ T254] worker_thread+0x587/0xd30 [ 3680.810817][ T254] kthread+0x28a/0x350 [ 3680.810817][ T254] ret_from_fork+0x31/0x70 [ 3680.810817][ T254] ret_from_fork_asm+0x1a/0x30 [ 3680.810817][ T254] [ 3680.812910][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.812910][ T254] netdev_get_by_index+0x5e/0x80 [ 3680.812910][ T254] fib6_nh_init+0x3d8/0x1580 [ 3680.812910][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3680.812910][ T254] ip6_route_add+0x1c/0x140 [ 3680.812910][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3680.812910][ T254] inet6_addr_add+0x4f8/0xa40 [ 3680.812910][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3680.812910][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3680.812910][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.812910][ T254] netlink_unicast+0x449/0x710 [ 3680.812910][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.812910][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.812910][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.812910][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.812910][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.812910][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3680.812910][ T254] [ 3680.815100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.815100][ T254] netdev_get_by_index+0x5e/0x80 [ 3680.815100][ T254] fib6_nh_init+0x3d8/0x1580 [ 3680.815100][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3680.815100][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3680.815100][ T254] ipv6_add_addr+0x411/0x2000 [ 3680.815100][ T254] inet6_addr_add+0x30e/0xa40 [ 3680.815100][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3680.815100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3680.815100][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.815100][ T254] netlink_unicast+0x449/0x710 [ 3680.815100][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.815100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.815100][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.815100][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.815100][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.815100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3680.815100][ T254] [ 3680.817289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.817289][ T254] netdev_get_by_index+0x5e/0x80 [ 3680.817289][ T254] fib6_nh_init+0x3d8/0x1580 [ 3680.817289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3680.817289][ T254] ip6_route_add+0x1c/0x140 [ 3680.817289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3680.817289][ T254] addrconf_add_dev+0xe2/0x170 [ 3680.817289][ T254] inet6_addr_add+0x12f/0xa40 [ 3680.817289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3680.817289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3680.817289][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.817289][ T254] netlink_unicast+0x449/0x710 [ 3680.817289][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.817289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.817289][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.817289][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.817289][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.817289][ T254] [ 3680.819435][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.819435][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3680.819435][ T254] ipv6_find_idev+0x102/0x170 [ 3680.819435][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3680.819435][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3680.819435][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.819435][ T254] netlink_unicast+0x449/0x710 [ 3680.819435][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.819435][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.819435][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.819435][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.819435][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.819435][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3680.819435][ T254] [ 3680.821193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3680.821193][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3680.821193][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3680.821193][ T254] ipv6_find_idev+0x102/0x170 [ 3680.821193][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3680.821193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3680.821193][ T254] netlink_rcv_skb+0x130/0x360 [ 3680.821193][ T254] netlink_unicast+0x449/0x710 [ 3680.821193][ T254] netlink_sendmsg+0x723/0xbe0 [ 3680.821193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3680.821193][ T254] ___sys_sendmsg+0xee/0x170 [ 3680.821193][ T254] __sys_sendmsg+0xcd/0x170 [ 3680.821193][ T254] do_syscall_64+0xc6/0x1e0 [ 3680.821193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3680.821193][ T254] [ 3690.847908][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3690.848782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.848782][ T254] dst_init+0x84/0x4a0 [ 3690.848782][ T254] dst_alloc+0x97/0x150 [ 3690.848782][ T254] ip6_dst_alloc+0x23/0x90 [ 3690.848782][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3690.848782][ T254] ip6_pol_route+0x56f/0x840 [ 3690.848782][ T254] fib6_rule_lookup+0x334/0x630 [ 3690.848782][ T254] ip6_route_output_flags+0x259/0x480 [ 3690.848782][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3690.848782][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3690.848782][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.848782][ T254] netlink_unicast+0x449/0x710 [ 3690.848782][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.848782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.848782][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.848782][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.848782][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.848782][ T254] [ 3690.850961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.850961][ T254] netdev_get_by_index+0x5e/0x80 [ 3690.850961][ T254] fib6_nh_init+0x3d8/0x1580 [ 3690.850961][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3690.850961][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3690.850961][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3690.850961][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3690.850961][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3690.850961][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3690.850961][ T254] addrconf_dad_begin+0x310/0x670 [ 3690.850961][ T254] addrconf_dad_work+0x10b/0xab0 [ 3690.850961][ T254] process_one_work+0x84d/0x18a0 [ 3690.850961][ T254] worker_thread+0x587/0xd30 [ 3690.850961][ T254] kthread+0x28a/0x350 [ 3690.850961][ T254] ret_from_fork+0x31/0x70 [ 3690.850961][ T254] ret_from_fork_asm+0x1a/0x30 [ 3690.850961][ T254] [ 3690.853118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.853118][ T254] netdev_get_by_index+0x5e/0x80 [ 3690.853118][ T254] fib6_nh_init+0x3d8/0x1580 [ 3690.853118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3690.853118][ T254] ip6_route_add+0x1c/0x140 [ 3690.853118][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3690.853118][ T254] inet6_addr_add+0x4f8/0xa40 [ 3690.853118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3690.853118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3690.853118][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.853118][ T254] netlink_unicast+0x449/0x710 [ 3690.853118][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.853118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.853118][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.853118][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.853118][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.853118][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3690.853118][ T254] [ 3690.855319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.855319][ T254] netdev_get_by_index+0x5e/0x80 [ 3690.855319][ T254] fib6_nh_init+0x3d8/0x1580 [ 3690.855319][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3690.855319][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3690.855319][ T254] ipv6_add_addr+0x411/0x2000 [ 3690.855319][ T254] inet6_addr_add+0x30e/0xa40 [ 3690.855319][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3690.855319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3690.855319][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.855319][ T254] netlink_unicast+0x449/0x710 [ 3690.855319][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.855319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.855319][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.855319][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.855319][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.855319][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3690.855319][ T254] [ 3690.857647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.857647][ T254] netdev_get_by_index+0x5e/0x80 [ 3690.857647][ T254] fib6_nh_init+0x3d8/0x1580 [ 3690.857647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3690.857647][ T254] ip6_route_add+0x1c/0x140 [ 3690.857647][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3690.857647][ T254] addrconf_add_dev+0xe2/0x170 [ 3690.857647][ T254] inet6_addr_add+0x12f/0xa40 [ 3690.857647][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3690.857647][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3690.857647][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.857647][ T254] netlink_unicast+0x449/0x710 [ 3690.857647][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.857647][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.857647][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.857647][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.857647][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.857647][ T254] [ 3690.859850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.859850][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3690.859850][ T254] ipv6_find_idev+0x102/0x170 [ 3690.859850][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3690.859850][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3690.859850][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.859850][ T254] netlink_unicast+0x449/0x710 [ 3690.859850][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.859850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.859850][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.859850][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.859850][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.859850][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3690.859850][ T254] [ 3690.861569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3690.861569][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3690.861569][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3690.861569][ T254] ipv6_find_idev+0x102/0x170 [ 3690.861569][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3690.861569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3690.861569][ T254] netlink_rcv_skb+0x130/0x360 [ 3690.861569][ T254] netlink_unicast+0x449/0x710 [ 3690.861569][ T254] netlink_sendmsg+0x723/0xbe0 [ 3690.861569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3690.861569][ T254] ___sys_sendmsg+0xee/0x170 [ 3690.861569][ T254] __sys_sendmsg+0xcd/0x170 [ 3690.861569][ T254] do_syscall_64+0xc6/0x1e0 [ 3690.861569][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3690.861569][ T254] [ 3700.895906][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3700.896817][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.896817][ T254] dst_init+0x84/0x4a0 [ 3700.896817][ T254] dst_alloc+0x97/0x150 [ 3700.896817][ T254] ip6_dst_alloc+0x23/0x90 [ 3700.896817][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3700.896817][ T254] ip6_pol_route+0x56f/0x840 [ 3700.896817][ T254] fib6_rule_lookup+0x334/0x630 [ 3700.896817][ T254] ip6_route_output_flags+0x259/0x480 [ 3700.896817][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3700.896817][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3700.896817][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.896817][ T254] netlink_unicast+0x449/0x710 [ 3700.896817][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.896817][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.896817][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.896817][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.896817][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.896817][ T254] [ 3700.899014][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.899014][ T254] netdev_get_by_index+0x5e/0x80 [ 3700.899014][ T254] fib6_nh_init+0x3d8/0x1580 [ 3700.899014][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3700.899014][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3700.899014][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3700.899014][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3700.899014][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3700.899014][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3700.899014][ T254] addrconf_dad_begin+0x310/0x670 [ 3700.899014][ T254] addrconf_dad_work+0x10b/0xab0 [ 3700.899014][ T254] process_one_work+0x84d/0x18a0 [ 3700.899014][ T254] worker_thread+0x587/0xd30 [ 3700.899014][ T254] kthread+0x28a/0x350 [ 3700.899014][ T254] ret_from_fork+0x31/0x70 [ 3700.899014][ T254] ret_from_fork_asm+0x1a/0x30 [ 3700.899014][ T254] [ 3700.901189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.901189][ T254] netdev_get_by_index+0x5e/0x80 [ 3700.901189][ T254] fib6_nh_init+0x3d8/0x1580 [ 3700.901189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3700.901189][ T254] ip6_route_add+0x1c/0x140 [ 3700.901189][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3700.901189][ T254] inet6_addr_add+0x4f8/0xa40 [ 3700.901189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3700.901189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3700.901189][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.901189][ T254] netlink_unicast+0x449/0x710 [ 3700.901189][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.901189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.901189][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.901189][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.901189][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.901189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3700.901189][ T254] [ 3700.903454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.903454][ T254] netdev_get_by_index+0x5e/0x80 [ 3700.903454][ T254] fib6_nh_init+0x3d8/0x1580 [ 3700.903454][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3700.903454][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3700.903454][ T254] ipv6_add_addr+0x411/0x2000 [ 3700.903454][ T254] inet6_addr_add+0x30e/0xa40 [ 3700.903454][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3700.903454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3700.903454][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.903454][ T254] netlink_unicast+0x449/0x710 [ 3700.903454][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.903454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.903454][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.903454][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.903454][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.903454][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3700.903454][ T254] [ 3700.905694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.905694][ T254] netdev_get_by_index+0x5e/0x80 [ 3700.905694][ T254] fib6_nh_init+0x3d8/0x1580 [ 3700.905694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3700.905694][ T254] ip6_route_add+0x1c/0x140 [ 3700.905694][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3700.905694][ T254] addrconf_add_dev+0xe2/0x170 [ 3700.905694][ T254] inet6_addr_add+0x12f/0xa40 [ 3700.905694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3700.905694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3700.905694][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.905694][ T254] netlink_unicast+0x449/0x710 [ 3700.905694][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.905694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.905694][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.905694][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.905694][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.905694][ T254] [ 3700.907905][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.907905][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3700.907905][ T254] ipv6_find_idev+0x102/0x170 [ 3700.907905][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3700.907905][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3700.907905][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.907905][ T254] netlink_unicast+0x449/0x710 [ 3700.907905][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.907905][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.907905][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.907905][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.907905][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.907905][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3700.907905][ T254] [ 3700.909593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3700.909593][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3700.909593][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3700.909593][ T254] ipv6_find_idev+0x102/0x170 [ 3700.909593][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3700.909593][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3700.909593][ T254] netlink_rcv_skb+0x130/0x360 [ 3700.909593][ T254] netlink_unicast+0x449/0x710 [ 3700.909593][ T254] netlink_sendmsg+0x723/0xbe0 [ 3700.909593][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3700.909593][ T254] ___sys_sendmsg+0xee/0x170 [ 3700.909593][ T254] __sys_sendmsg+0xcd/0x170 [ 3700.909593][ T254] do_syscall_64+0xc6/0x1e0 [ 3700.909593][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3700.909593][ T254] [ 3710.959904][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3710.960599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.960599][ T254] dst_init+0x84/0x4a0 [ 3710.960599][ T254] dst_alloc+0x97/0x150 [ 3710.960599][ T254] ip6_dst_alloc+0x23/0x90 [ 3710.960599][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3710.960599][ T254] ip6_pol_route+0x56f/0x840 [ 3710.960599][ T254] fib6_rule_lookup+0x334/0x630 [ 3710.960599][ T254] ip6_route_output_flags+0x259/0x480 [ 3710.960599][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3710.960599][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3710.960599][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.960599][ T254] netlink_unicast+0x449/0x710 [ 3710.960599][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.960599][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.960599][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.960599][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.960599][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.960599][ T254] [ 3710.962755][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.962755][ T254] netdev_get_by_index+0x5e/0x80 [ 3710.962755][ T254] fib6_nh_init+0x3d8/0x1580 [ 3710.962755][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3710.962755][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3710.962755][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3710.962755][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3710.962755][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3710.962755][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3710.962755][ T254] addrconf_dad_begin+0x310/0x670 [ 3710.962755][ T254] addrconf_dad_work+0x10b/0xab0 [ 3710.962755][ T254] process_one_work+0x84d/0x18a0 [ 3710.962755][ T254] worker_thread+0x587/0xd30 [ 3710.962755][ T254] kthread+0x28a/0x350 [ 3710.962755][ T254] ret_from_fork+0x31/0x70 [ 3710.962755][ T254] ret_from_fork_asm+0x1a/0x30 [ 3710.962755][ T254] [ 3710.964854][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.964854][ T254] netdev_get_by_index+0x5e/0x80 [ 3710.964854][ T254] fib6_nh_init+0x3d8/0x1580 [ 3710.964854][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3710.964854][ T254] ip6_route_add+0x1c/0x140 [ 3710.964854][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3710.964854][ T254] inet6_addr_add+0x4f8/0xa40 [ 3710.964854][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3710.964854][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3710.964854][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.964854][ T254] netlink_unicast+0x449/0x710 [ 3710.964854][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.964854][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.964854][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.964854][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.964854][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.964854][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3710.964854][ T254] [ 3710.967103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.967103][ T254] netdev_get_by_index+0x5e/0x80 [ 3710.967103][ T254] fib6_nh_init+0x3d8/0x1580 [ 3710.967103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3710.967103][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3710.967103][ T254] ipv6_add_addr+0x411/0x2000 [ 3710.967103][ T254] inet6_addr_add+0x30e/0xa40 [ 3710.967103][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3710.967103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3710.967103][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.967103][ T254] netlink_unicast+0x449/0x710 [ 3710.967103][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.967103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.967103][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.967103][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.967103][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.967103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3710.967103][ T254] [ 3710.969459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.969459][ T254] netdev_get_by_index+0x5e/0x80 [ 3710.969459][ T254] fib6_nh_init+0x3d8/0x1580 [ 3710.969459][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3710.969459][ T254] ip6_route_add+0x1c/0x140 [ 3710.969459][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3710.969459][ T254] addrconf_add_dev+0xe2/0x170 [ 3710.969459][ T254] inet6_addr_add+0x12f/0xa40 [ 3710.969459][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3710.969459][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3710.969459][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.969459][ T254] netlink_unicast+0x449/0x710 [ 3710.969459][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.969459][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.969459][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.969459][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.969459][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.969459][ T254] [ 3710.971731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.971731][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3710.971731][ T254] ipv6_find_idev+0x102/0x170 [ 3710.971731][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3710.971731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3710.971731][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.971731][ T254] netlink_unicast+0x449/0x710 [ 3710.971731][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.971731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.971731][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.971731][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.971731][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.971731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3710.971731][ T254] [ 3710.973439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3710.973439][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3710.973439][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3710.973439][ T254] ipv6_find_idev+0x102/0x170 [ 3710.973439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3710.973439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3710.973439][ T254] netlink_rcv_skb+0x130/0x360 [ 3710.973439][ T254] netlink_unicast+0x449/0x710 [ 3710.973439][ T254] netlink_sendmsg+0x723/0xbe0 [ 3710.973439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3710.973439][ T254] ___sys_sendmsg+0xee/0x170 [ 3710.973439][ T254] __sys_sendmsg+0xcd/0x170 [ 3710.973439][ T254] do_syscall_64+0xc6/0x1e0 [ 3710.973439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3710.973439][ T254] [ 3721.223933][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3721.224677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.224677][ T254] dst_init+0x84/0x4a0 [ 3721.224677][ T254] dst_alloc+0x97/0x150 [ 3721.224677][ T254] ip6_dst_alloc+0x23/0x90 [ 3721.224677][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3721.224677][ T254] ip6_pol_route+0x56f/0x840 [ 3721.224677][ T254] fib6_rule_lookup+0x334/0x630 [ 3721.224677][ T254] ip6_route_output_flags+0x259/0x480 [ 3721.224677][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3721.224677][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3721.224677][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.224677][ T254] netlink_unicast+0x449/0x710 [ 3721.224677][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.224677][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.224677][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.224677][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.224677][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.224677][ T254] [ 3721.226866][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.226866][ T254] netdev_get_by_index+0x5e/0x80 [ 3721.226866][ T254] fib6_nh_init+0x3d8/0x1580 [ 3721.226866][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3721.226866][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3721.226866][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3721.226866][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3721.226866][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3721.226866][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3721.226866][ T254] addrconf_dad_begin+0x310/0x670 [ 3721.226866][ T254] addrconf_dad_work+0x10b/0xab0 [ 3721.226866][ T254] process_one_work+0x84d/0x18a0 [ 3721.226866][ T254] worker_thread+0x587/0xd30 [ 3721.226866][ T254] kthread+0x28a/0x350 [ 3721.226866][ T254] ret_from_fork+0x31/0x70 [ 3721.226866][ T254] ret_from_fork_asm+0x1a/0x30 [ 3721.226866][ T254] [ 3721.229016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.229016][ T254] netdev_get_by_index+0x5e/0x80 [ 3721.229016][ T254] fib6_nh_init+0x3d8/0x1580 [ 3721.229016][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3721.229016][ T254] ip6_route_add+0x1c/0x140 [ 3721.229016][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3721.229016][ T254] inet6_addr_add+0x4f8/0xa40 [ 3721.229016][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3721.229016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3721.229016][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.229016][ T254] netlink_unicast+0x449/0x710 [ 3721.229016][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.229016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.229016][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.229016][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.229016][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.229016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3721.229016][ T254] [ 3721.231269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.231269][ T254] netdev_get_by_index+0x5e/0x80 [ 3721.231269][ T254] fib6_nh_init+0x3d8/0x1580 [ 3721.231269][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3721.231269][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3721.231269][ T254] ipv6_add_addr+0x411/0x2000 [ 3721.231269][ T254] inet6_addr_add+0x30e/0xa40 [ 3721.231269][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3721.231269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3721.231269][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.231269][ T254] netlink_unicast+0x449/0x710 [ 3721.231269][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.231269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.231269][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.231269][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.231269][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.231269][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3721.231269][ T254] [ 3721.233523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.233523][ T254] netdev_get_by_index+0x5e/0x80 [ 3721.233523][ T254] fib6_nh_init+0x3d8/0x1580 [ 3721.233523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3721.233523][ T254] ip6_route_add+0x1c/0x140 [ 3721.233523][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3721.233523][ T254] addrconf_add_dev+0xe2/0x170 [ 3721.233523][ T254] inet6_addr_add+0x12f/0xa40 [ 3721.233523][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3721.233523][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3721.233523][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.233523][ T254] netlink_unicast+0x449/0x710 [ 3721.233523][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.233523][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.233523][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.233523][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.233523][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.233523][ T254] [ 3721.235714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.235714][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3721.235714][ T254] ipv6_find_idev+0x102/0x170 [ 3721.235714][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3721.235714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3721.235714][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.235714][ T254] netlink_unicast+0x449/0x710 [ 3721.235714][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.235714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.235714][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.235714][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.235714][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.235714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3721.235714][ T254] [ 3721.237457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3721.237457][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3721.237457][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3721.237457][ T254] ipv6_find_idev+0x102/0x170 [ 3721.237457][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3721.237457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3721.237457][ T254] netlink_rcv_skb+0x130/0x360 [ 3721.237457][ T254] netlink_unicast+0x449/0x710 [ 3721.237457][ T254] netlink_sendmsg+0x723/0xbe0 [ 3721.237457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3721.237457][ T254] ___sys_sendmsg+0xee/0x170 [ 3721.237457][ T254] __sys_sendmsg+0xcd/0x170 [ 3721.237457][ T254] do_syscall_64+0xc6/0x1e0 [ 3721.237457][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3721.237457][ T254] [ 3731.375919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3731.376889][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.376889][ T254] dst_init+0x84/0x4a0 [ 3731.376889][ T254] dst_alloc+0x97/0x150 [ 3731.376889][ T254] ip6_dst_alloc+0x23/0x90 [ 3731.376889][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3731.376889][ T254] ip6_pol_route+0x56f/0x840 [ 3731.376889][ T254] fib6_rule_lookup+0x334/0x630 [ 3731.376889][ T254] ip6_route_output_flags+0x259/0x480 [ 3731.376889][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3731.376889][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3731.376889][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.376889][ T254] netlink_unicast+0x449/0x710 [ 3731.376889][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.376889][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.376889][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.376889][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.376889][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.376889][ T254] [ 3731.379039][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.379039][ T254] netdev_get_by_index+0x5e/0x80 [ 3731.379039][ T254] fib6_nh_init+0x3d8/0x1580 [ 3731.379039][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3731.379039][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3731.379039][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3731.379039][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3731.379039][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3731.379039][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3731.379039][ T254] addrconf_dad_begin+0x310/0x670 [ 3731.379039][ T254] addrconf_dad_work+0x10b/0xab0 [ 3731.379039][ T254] process_one_work+0x84d/0x18a0 [ 3731.379039][ T254] worker_thread+0x587/0xd30 [ 3731.379039][ T254] kthread+0x28a/0x350 [ 3731.379039][ T254] ret_from_fork+0x31/0x70 [ 3731.379039][ T254] ret_from_fork_asm+0x1a/0x30 [ 3731.379039][ T254] [ 3731.381232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.381232][ T254] netdev_get_by_index+0x5e/0x80 [ 3731.381232][ T254] fib6_nh_init+0x3d8/0x1580 [ 3731.381232][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3731.381232][ T254] ip6_route_add+0x1c/0x140 [ 3731.381232][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3731.381232][ T254] inet6_addr_add+0x4f8/0xa40 [ 3731.381232][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3731.381232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3731.381232][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.381232][ T254] netlink_unicast+0x449/0x710 [ 3731.381232][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.381232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.381232][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.381232][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.381232][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.381232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3731.381232][ T254] [ 3731.383456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.383456][ T254] netdev_get_by_index+0x5e/0x80 [ 3731.383456][ T254] fib6_nh_init+0x3d8/0x1580 [ 3731.383456][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3731.383456][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3731.383456][ T254] ipv6_add_addr+0x411/0x2000 [ 3731.383456][ T254] inet6_addr_add+0x30e/0xa40 [ 3731.383456][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3731.383456][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3731.383456][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.383456][ T254] netlink_unicast+0x449/0x710 [ 3731.383456][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.383456][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.383456][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.383456][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.383456][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.383456][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3731.383456][ T254] [ 3731.385832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.385832][ T254] netdev_get_by_index+0x5e/0x80 [ 3731.385832][ T254] fib6_nh_init+0x3d8/0x1580 [ 3731.385832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3731.385832][ T254] ip6_route_add+0x1c/0x140 [ 3731.385832][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3731.385832][ T254] addrconf_add_dev+0xe2/0x170 [ 3731.385832][ T254] inet6_addr_add+0x12f/0xa40 [ 3731.385832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3731.385832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3731.385832][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.385832][ T254] netlink_unicast+0x449/0x710 [ 3731.385832][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.385832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.385832][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.385832][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.385832][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.385832][ T254] [ 3731.388054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.388054][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3731.388054][ T254] ipv6_find_idev+0x102/0x170 [ 3731.388054][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3731.388054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3731.388054][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.388054][ T254] netlink_unicast+0x449/0x710 [ 3731.388054][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.388054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.388054][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.388054][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.388054][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.388054][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3731.388054][ T254] [ 3731.389786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3731.389786][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3731.389786][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3731.389786][ T254] ipv6_find_idev+0x102/0x170 [ 3731.389786][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3731.389786][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3731.389786][ T254] netlink_rcv_skb+0x130/0x360 [ 3731.389786][ T254] netlink_unicast+0x449/0x710 [ 3731.389786][ T254] netlink_sendmsg+0x723/0xbe0 [ 3731.389786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3731.389786][ T254] ___sys_sendmsg+0xee/0x170 [ 3731.389786][ T254] __sys_sendmsg+0xcd/0x170 [ 3731.389786][ T254] do_syscall_64+0xc6/0x1e0 [ 3731.389786][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3731.389786][ T254] [ 3741.631933][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3741.632774][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.632774][ T254] dst_init+0x84/0x4a0 [ 3741.632774][ T254] dst_alloc+0x97/0x150 [ 3741.632774][ T254] ip6_dst_alloc+0x23/0x90 [ 3741.632774][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3741.632774][ T254] ip6_pol_route+0x56f/0x840 [ 3741.632774][ T254] fib6_rule_lookup+0x334/0x630 [ 3741.632774][ T254] ip6_route_output_flags+0x259/0x480 [ 3741.632774][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3741.632774][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3741.632774][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.632774][ T254] netlink_unicast+0x449/0x710 [ 3741.632774][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.632774][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.632774][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.632774][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.632774][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.632774][ T254] [ 3741.635505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.635505][ T254] netdev_get_by_index+0x5e/0x80 [ 3741.635505][ T254] fib6_nh_init+0x3d8/0x1580 [ 3741.635505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3741.635505][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3741.635505][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3741.635505][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3741.635505][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3741.635505][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3741.635505][ T254] addrconf_dad_begin+0x310/0x670 [ 3741.635505][ T254] addrconf_dad_work+0x10b/0xab0 [ 3741.635505][ T254] process_one_work+0x84d/0x18a0 [ 3741.635505][ T254] worker_thread+0x587/0xd30 [ 3741.635505][ T254] kthread+0x28a/0x350 [ 3741.635505][ T254] ret_from_fork+0x31/0x70 [ 3741.635505][ T254] ret_from_fork_asm+0x1a/0x30 [ 3741.635505][ T254] [ 3741.637607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.637607][ T254] netdev_get_by_index+0x5e/0x80 [ 3741.637607][ T254] fib6_nh_init+0x3d8/0x1580 [ 3741.637607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3741.637607][ T254] ip6_route_add+0x1c/0x140 [ 3741.637607][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3741.637607][ T254] inet6_addr_add+0x4f8/0xa40 [ 3741.637607][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3741.637607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3741.637607][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.637607][ T254] netlink_unicast+0x449/0x710 [ 3741.637607][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.637607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.637607][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.637607][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.637607][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.637607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3741.637607][ T254] [ 3741.639837][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.639837][ T254] netdev_get_by_index+0x5e/0x80 [ 3741.639837][ T254] fib6_nh_init+0x3d8/0x1580 [ 3741.639837][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3741.639837][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3741.639837][ T254] ipv6_add_addr+0x411/0x2000 [ 3741.639837][ T254] inet6_addr_add+0x30e/0xa40 [ 3741.639837][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3741.639837][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3741.639837][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.639837][ T254] netlink_unicast+0x449/0x710 [ 3741.639837][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.639837][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.639837][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.639837][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.639837][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.639837][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3741.639837][ T254] [ 3741.642072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.642072][ T254] netdev_get_by_index+0x5e/0x80 [ 3741.642072][ T254] fib6_nh_init+0x3d8/0x1580 [ 3741.642072][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3741.642072][ T254] ip6_route_add+0x1c/0x140 [ 3741.642072][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3741.642072][ T254] addrconf_add_dev+0xe2/0x170 [ 3741.642072][ T254] inet6_addr_add+0x12f/0xa40 [ 3741.642072][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3741.642072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3741.642072][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.642072][ T254] netlink_unicast+0x449/0x710 [ 3741.642072][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.642072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.642072][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.642072][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.642072][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.642072][ T254] [ 3741.644269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.644269][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3741.644269][ T254] ipv6_find_idev+0x102/0x170 [ 3741.644269][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3741.644269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3741.644269][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.644269][ T254] netlink_unicast+0x449/0x710 [ 3741.644269][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.644269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.644269][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.644269][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.644269][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.644269][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3741.644269][ T254] [ 3741.645997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3741.645997][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3741.645997][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3741.645997][ T254] ipv6_find_idev+0x102/0x170 [ 3741.645997][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3741.645997][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3741.645997][ T254] netlink_rcv_skb+0x130/0x360 [ 3741.645997][ T254] netlink_unicast+0x449/0x710 [ 3741.645997][ T254] netlink_sendmsg+0x723/0xbe0 [ 3741.645997][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3741.645997][ T254] ___sys_sendmsg+0xee/0x170 [ 3741.645997][ T254] __sys_sendmsg+0xcd/0x170 [ 3741.645997][ T254] do_syscall_64+0xc6/0x1e0 [ 3741.645997][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3741.645997][ T254] [ 3751.887859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3751.888535][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.888535][ T254] dst_init+0x84/0x4a0 [ 3751.888535][ T254] dst_alloc+0x97/0x150 [ 3751.888535][ T254] ip6_dst_alloc+0x23/0x90 [ 3751.888535][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3751.888535][ T254] ip6_pol_route+0x56f/0x840 [ 3751.888535][ T254] fib6_rule_lookup+0x334/0x630 [ 3751.888535][ T254] ip6_route_output_flags+0x259/0x480 [ 3751.888535][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3751.888535][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3751.888535][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.888535][ T254] netlink_unicast+0x449/0x710 [ 3751.888535][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.888535][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.888535][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.888535][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.888535][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.888535][ T254] [ 3751.891058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.891058][ T254] netdev_get_by_index+0x5e/0x80 [ 3751.891058][ T254] fib6_nh_init+0x3d8/0x1580 [ 3751.891058][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3751.891058][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3751.891058][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3751.891058][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3751.891058][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3751.891058][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3751.891058][ T254] addrconf_dad_begin+0x310/0x670 [ 3751.891058][ T254] addrconf_dad_work+0x10b/0xab0 [ 3751.891058][ T254] process_one_work+0x84d/0x18a0 [ 3751.891058][ T254] worker_thread+0x587/0xd30 [ 3751.891058][ T254] kthread+0x28a/0x350 [ 3751.891058][ T254] ret_from_fork+0x31/0x70 [ 3751.891058][ T254] ret_from_fork_asm+0x1a/0x30 [ 3751.891058][ T254] [ 3751.893486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.893486][ T254] netdev_get_by_index+0x5e/0x80 [ 3751.893486][ T254] fib6_nh_init+0x3d8/0x1580 [ 3751.893486][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3751.893486][ T254] ip6_route_add+0x1c/0x140 [ 3751.893486][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3751.893486][ T254] inet6_addr_add+0x4f8/0xa40 [ 3751.893486][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3751.893486][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3751.893486][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.893486][ T254] netlink_unicast+0x449/0x710 [ 3751.893486][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.893486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.893486][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.893486][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.893486][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.893486][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3751.893486][ T254] [ 3751.896008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.896008][ T254] netdev_get_by_index+0x5e/0x80 [ 3751.896008][ T254] fib6_nh_init+0x3d8/0x1580 [ 3751.896008][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3751.896008][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3751.896008][ T254] ipv6_add_addr+0x411/0x2000 [ 3751.896008][ T254] inet6_addr_add+0x30e/0xa40 [ 3751.896008][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3751.896008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3751.896008][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.896008][ T254] netlink_unicast+0x449/0x710 [ 3751.896008][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.896008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.896008][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.896008][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.896008][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.896008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3751.896008][ T254] [ 3751.898609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.898609][ T254] netdev_get_by_index+0x5e/0x80 [ 3751.898609][ T254] fib6_nh_init+0x3d8/0x1580 [ 3751.898609][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3751.898609][ T254] ip6_route_add+0x1c/0x140 [ 3751.898609][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3751.898609][ T254] addrconf_add_dev+0xe2/0x170 [ 3751.898609][ T254] inet6_addr_add+0x12f/0xa40 [ 3751.898609][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3751.898609][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3751.898609][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.898609][ T254] netlink_unicast+0x449/0x710 [ 3751.898609][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.898609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.898609][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.898609][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.898609][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.898609][ T254] [ 3751.901053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.901053][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3751.901053][ T254] ipv6_find_idev+0x102/0x170 [ 3751.901053][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3751.901053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3751.901053][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.901053][ T254] netlink_unicast+0x449/0x710 [ 3751.901053][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.901053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.901053][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.901053][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.901053][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.901053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3751.901053][ T254] [ 3751.902984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3751.902984][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3751.902984][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3751.902984][ T254] ipv6_find_idev+0x102/0x170 [ 3751.902984][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3751.902984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3751.902984][ T254] netlink_rcv_skb+0x130/0x360 [ 3751.902984][ T254] netlink_unicast+0x449/0x710 [ 3751.902984][ T254] netlink_sendmsg+0x723/0xbe0 [ 3751.902984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3751.902984][ T254] ___sys_sendmsg+0xee/0x170 [ 3751.902984][ T254] __sys_sendmsg+0xcd/0x170 [ 3751.902984][ T254] do_syscall_64+0xc6/0x1e0 [ 3751.902984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3751.902984][ T254] [ 3762.143845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3762.144378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.144378][ T254] dst_init+0x84/0x4a0 [ 3762.144378][ T254] dst_alloc+0x97/0x150 [ 3762.144378][ T254] ip6_dst_alloc+0x23/0x90 [ 3762.144378][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3762.144378][ T254] ip6_pol_route+0x56f/0x840 [ 3762.144378][ T254] fib6_rule_lookup+0x334/0x630 [ 3762.144378][ T254] ip6_route_output_flags+0x259/0x480 [ 3762.144378][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3762.144378][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3762.144378][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.144378][ T254] netlink_unicast+0x449/0x710 [ 3762.144378][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.144378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.144378][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.144378][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.144378][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.144378][ T254] [ 3762.146579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.146579][ T254] netdev_get_by_index+0x5e/0x80 [ 3762.146579][ T254] fib6_nh_init+0x3d8/0x1580 [ 3762.146579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3762.146579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3762.146579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3762.146579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3762.146579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3762.146579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3762.146579][ T254] addrconf_dad_begin+0x310/0x670 [ 3762.146579][ T254] addrconf_dad_work+0x10b/0xab0 [ 3762.146579][ T254] process_one_work+0x84d/0x18a0 [ 3762.146579][ T254] worker_thread+0x587/0xd30 [ 3762.146579][ T254] kthread+0x28a/0x350 [ 3762.146579][ T254] ret_from_fork+0x31/0x70 [ 3762.146579][ T254] ret_from_fork_asm+0x1a/0x30 [ 3762.146579][ T254] [ 3762.148765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.148765][ T254] netdev_get_by_index+0x5e/0x80 [ 3762.148765][ T254] fib6_nh_init+0x3d8/0x1580 [ 3762.148765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3762.148765][ T254] ip6_route_add+0x1c/0x140 [ 3762.148765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3762.148765][ T254] inet6_addr_add+0x4f8/0xa40 [ 3762.148765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3762.148765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3762.148765][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.148765][ T254] netlink_unicast+0x449/0x710 [ 3762.148765][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.148765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.148765][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.148765][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.148765][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.148765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3762.148765][ T254] [ 3762.151062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.151062][ T254] netdev_get_by_index+0x5e/0x80 [ 3762.151062][ T254] fib6_nh_init+0x3d8/0x1580 [ 3762.151062][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3762.151062][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3762.151062][ T254] ipv6_add_addr+0x411/0x2000 [ 3762.151062][ T254] inet6_addr_add+0x30e/0xa40 [ 3762.151062][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3762.151062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3762.151062][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.151062][ T254] netlink_unicast+0x449/0x710 [ 3762.151062][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.151062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.151062][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.151062][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.151062][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.151062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3762.151062][ T254] [ 3762.153348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.153348][ T254] netdev_get_by_index+0x5e/0x80 [ 3762.153348][ T254] fib6_nh_init+0x3d8/0x1580 [ 3762.153348][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3762.153348][ T254] ip6_route_add+0x1c/0x140 [ 3762.153348][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3762.153348][ T254] addrconf_add_dev+0xe2/0x170 [ 3762.153348][ T254] inet6_addr_add+0x12f/0xa40 [ 3762.153348][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3762.153348][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3762.153348][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.153348][ T254] netlink_unicast+0x449/0x710 [ 3762.153348][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.153348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.153348][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.153348][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.153348][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.153348][ T254] [ 3762.155564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.155564][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3762.155564][ T254] ipv6_find_idev+0x102/0x170 [ 3762.155564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3762.155564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3762.155564][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.155564][ T254] netlink_unicast+0x449/0x710 [ 3762.155564][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.155564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.155564][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.155564][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.155564][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.155564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3762.155564][ T254] [ 3762.157288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3762.157288][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3762.157288][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3762.157288][ T254] ipv6_find_idev+0x102/0x170 [ 3762.157288][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3762.157288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3762.157288][ T254] netlink_rcv_skb+0x130/0x360 [ 3762.157288][ T254] netlink_unicast+0x449/0x710 [ 3762.157288][ T254] netlink_sendmsg+0x723/0xbe0 [ 3762.157288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3762.157288][ T254] ___sys_sendmsg+0xee/0x170 [ 3762.157288][ T254] __sys_sendmsg+0xcd/0x170 [ 3762.157288][ T254] do_syscall_64+0xc6/0x1e0 [ 3762.157288][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3762.157288][ T254] [ 3772.399906][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3772.400756][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.400756][ T254] dst_init+0x84/0x4a0 [ 3772.400756][ T254] dst_alloc+0x97/0x150 [ 3772.400756][ T254] ip6_dst_alloc+0x23/0x90 [ 3772.400756][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3772.400756][ T254] ip6_pol_route+0x56f/0x840 [ 3772.400756][ T254] fib6_rule_lookup+0x334/0x630 [ 3772.400756][ T254] ip6_route_output_flags+0x259/0x480 [ 3772.400756][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3772.400756][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3772.400756][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.400756][ T254] netlink_unicast+0x449/0x710 [ 3772.400756][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.400756][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.400756][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.400756][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.400756][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.400756][ T254] [ 3772.402950][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.402950][ T254] netdev_get_by_index+0x5e/0x80 [ 3772.402950][ T254] fib6_nh_init+0x3d8/0x1580 [ 3772.402950][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3772.402950][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3772.402950][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3772.402950][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3772.402950][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3772.402950][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3772.402950][ T254] addrconf_dad_begin+0x310/0x670 [ 3772.402950][ T254] addrconf_dad_work+0x10b/0xab0 [ 3772.402950][ T254] process_one_work+0x84d/0x18a0 [ 3772.402950][ T254] worker_thread+0x587/0xd30 [ 3772.402950][ T254] kthread+0x28a/0x350 [ 3772.402950][ T254] ret_from_fork+0x31/0x70 [ 3772.402950][ T254] ret_from_fork_asm+0x1a/0x30 [ 3772.402950][ T254] [ 3772.405051][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.405051][ T254] netdev_get_by_index+0x5e/0x80 [ 3772.405051][ T254] fib6_nh_init+0x3d8/0x1580 [ 3772.405051][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3772.405051][ T254] ip6_route_add+0x1c/0x140 [ 3772.405051][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3772.405051][ T254] inet6_addr_add+0x4f8/0xa40 [ 3772.405051][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3772.405051][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3772.405051][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.405051][ T254] netlink_unicast+0x449/0x710 [ 3772.405051][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.405051][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.405051][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.405051][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.405051][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.405051][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3772.405051][ T254] [ 3772.407287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.407287][ T254] netdev_get_by_index+0x5e/0x80 [ 3772.407287][ T254] fib6_nh_init+0x3d8/0x1580 [ 3772.407287][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3772.407287][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3772.407287][ T254] ipv6_add_addr+0x411/0x2000 [ 3772.407287][ T254] inet6_addr_add+0x30e/0xa40 [ 3772.407287][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3772.407287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3772.407287][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.407287][ T254] netlink_unicast+0x449/0x710 [ 3772.407287][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.407287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.407287][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.407287][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.407287][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.407287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3772.407287][ T254] [ 3772.409565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.409565][ T254] netdev_get_by_index+0x5e/0x80 [ 3772.409565][ T254] fib6_nh_init+0x3d8/0x1580 [ 3772.409565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3772.409565][ T254] ip6_route_add+0x1c/0x140 [ 3772.409565][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3772.409565][ T254] addrconf_add_dev+0xe2/0x170 [ 3772.409565][ T254] inet6_addr_add+0x12f/0xa40 [ 3772.409565][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3772.409565][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3772.409565][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.409565][ T254] netlink_unicast+0x449/0x710 [ 3772.409565][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.409565][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.409565][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.409565][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.409565][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.409565][ T254] [ 3772.411772][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.411772][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3772.411772][ T254] ipv6_find_idev+0x102/0x170 [ 3772.411772][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3772.411772][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3772.411772][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.411772][ T254] netlink_unicast+0x449/0x710 [ 3772.411772][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.411772][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.411772][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.411772][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.411772][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.411772][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3772.411772][ T254] [ 3772.413519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3772.413519][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3772.413519][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3772.413519][ T254] ipv6_find_idev+0x102/0x170 [ 3772.413519][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3772.413519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3772.413519][ T254] netlink_rcv_skb+0x130/0x360 [ 3772.413519][ T254] netlink_unicast+0x449/0x710 [ 3772.413519][ T254] netlink_sendmsg+0x723/0xbe0 [ 3772.413519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3772.413519][ T254] ___sys_sendmsg+0xee/0x170 [ 3772.413519][ T254] __sys_sendmsg+0xcd/0x170 [ 3772.413519][ T254] do_syscall_64+0xc6/0x1e0 [ 3772.413519][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3772.413519][ T254] [ 3782.511926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3782.512795][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.512795][ T254] dst_init+0x84/0x4a0 [ 3782.512795][ T254] dst_alloc+0x97/0x150 [ 3782.512795][ T254] ip6_dst_alloc+0x23/0x90 [ 3782.512795][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3782.512795][ T254] ip6_pol_route+0x56f/0x840 [ 3782.512795][ T254] fib6_rule_lookup+0x334/0x630 [ 3782.512795][ T254] ip6_route_output_flags+0x259/0x480 [ 3782.512795][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3782.512795][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3782.512795][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.512795][ T254] netlink_unicast+0x449/0x710 [ 3782.512795][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.512795][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.512795][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.512795][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.512795][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.512795][ T254] [ 3782.514949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.514949][ T254] netdev_get_by_index+0x5e/0x80 [ 3782.514949][ T254] fib6_nh_init+0x3d8/0x1580 [ 3782.514949][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3782.514949][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3782.514949][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3782.514949][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3782.514949][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3782.514949][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3782.514949][ T254] addrconf_dad_begin+0x310/0x670 [ 3782.514949][ T254] addrconf_dad_work+0x10b/0xab0 [ 3782.514949][ T254] process_one_work+0x84d/0x18a0 [ 3782.514949][ T254] worker_thread+0x587/0xd30 [ 3782.514949][ T254] kthread+0x28a/0x350 [ 3782.514949][ T254] ret_from_fork+0x31/0x70 [ 3782.514949][ T254] ret_from_fork_asm+0x1a/0x30 [ 3782.514949][ T254] [ 3782.517064][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.517064][ T254] netdev_get_by_index+0x5e/0x80 [ 3782.517064][ T254] fib6_nh_init+0x3d8/0x1580 [ 3782.517064][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3782.517064][ T254] ip6_route_add+0x1c/0x140 [ 3782.517064][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3782.517064][ T254] inet6_addr_add+0x4f8/0xa40 [ 3782.517064][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3782.517064][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3782.517064][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.517064][ T254] netlink_unicast+0x449/0x710 [ 3782.517064][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.517064][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.517064][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.517064][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.517064][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.517064][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3782.517064][ T254] [ 3782.519309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.519309][ T254] netdev_get_by_index+0x5e/0x80 [ 3782.519309][ T254] fib6_nh_init+0x3d8/0x1580 [ 3782.519309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3782.519309][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3782.519309][ T254] ipv6_add_addr+0x411/0x2000 [ 3782.519309][ T254] inet6_addr_add+0x30e/0xa40 [ 3782.519309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3782.519309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3782.519309][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.519309][ T254] netlink_unicast+0x449/0x710 [ 3782.519309][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.519309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.519309][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.519309][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.519309][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.519309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3782.519309][ T254] [ 3782.521652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.521652][ T254] netdev_get_by_index+0x5e/0x80 [ 3782.521652][ T254] fib6_nh_init+0x3d8/0x1580 [ 3782.521652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3782.521652][ T254] ip6_route_add+0x1c/0x140 [ 3782.521652][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3782.521652][ T254] addrconf_add_dev+0xe2/0x170 [ 3782.521652][ T254] inet6_addr_add+0x12f/0xa40 [ 3782.521652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3782.521652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3782.521652][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.521652][ T254] netlink_unicast+0x449/0x710 [ 3782.521652][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.521652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.521652][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.521652][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.521652][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.521652][ T254] [ 3782.523860][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.523860][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3782.523860][ T254] ipv6_find_idev+0x102/0x170 [ 3782.523860][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3782.523860][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3782.523860][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.523860][ T254] netlink_unicast+0x449/0x710 [ 3782.523860][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.523860][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.523860][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.523860][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.523860][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.523860][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3782.523860][ T254] [ 3782.525585][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3782.525585][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3782.525585][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3782.525585][ T254] ipv6_find_idev+0x102/0x170 [ 3782.525585][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3782.525585][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3782.525585][ T254] netlink_rcv_skb+0x130/0x360 [ 3782.525585][ T254] netlink_unicast+0x449/0x710 [ 3782.525585][ T254] netlink_sendmsg+0x723/0xbe0 [ 3782.525585][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3782.525585][ T254] ___sys_sendmsg+0xee/0x170 [ 3782.525585][ T254] __sys_sendmsg+0xcd/0x170 [ 3782.525585][ T254] do_syscall_64+0xc6/0x1e0 [ 3782.525585][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3782.525585][ T254] [ 3792.767845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3792.768346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.768346][ T254] dst_init+0x84/0x4a0 [ 3792.768346][ T254] dst_alloc+0x97/0x150 [ 3792.768346][ T254] ip6_dst_alloc+0x23/0x90 [ 3792.768346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3792.768346][ T254] ip6_pol_route+0x56f/0x840 [ 3792.768346][ T254] fib6_rule_lookup+0x334/0x630 [ 3792.768346][ T254] ip6_route_output_flags+0x259/0x480 [ 3792.768346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3792.768346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3792.768346][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.768346][ T254] netlink_unicast+0x449/0x710 [ 3792.768346][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.768346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.768346][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.768346][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.768346][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.768346][ T254] [ 3792.770611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.770611][ T254] netdev_get_by_index+0x5e/0x80 [ 3792.770611][ T254] fib6_nh_init+0x3d8/0x1580 [ 3792.770611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3792.770611][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3792.770611][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3792.770611][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3792.770611][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3792.770611][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3792.770611][ T254] addrconf_dad_begin+0x310/0x670 [ 3792.770611][ T254] addrconf_dad_work+0x10b/0xab0 [ 3792.770611][ T254] process_one_work+0x84d/0x18a0 [ 3792.770611][ T254] worker_thread+0x587/0xd30 [ 3792.770611][ T254] kthread+0x28a/0x350 [ 3792.770611][ T254] ret_from_fork+0x31/0x70 [ 3792.770611][ T254] ret_from_fork_asm+0x1a/0x30 [ 3792.770611][ T254] [ 3792.772761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.772761][ T254] netdev_get_by_index+0x5e/0x80 [ 3792.772761][ T254] fib6_nh_init+0x3d8/0x1580 [ 3792.772761][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3792.772761][ T254] ip6_route_add+0x1c/0x140 [ 3792.772761][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3792.772761][ T254] inet6_addr_add+0x4f8/0xa40 [ 3792.772761][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3792.772761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3792.772761][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.772761][ T254] netlink_unicast+0x449/0x710 [ 3792.772761][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.772761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.772761][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.772761][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.772761][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.772761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3792.772761][ T254] [ 3792.775025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.775025][ T254] netdev_get_by_index+0x5e/0x80 [ 3792.775025][ T254] fib6_nh_init+0x3d8/0x1580 [ 3792.775025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3792.775025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3792.775025][ T254] ipv6_add_addr+0x411/0x2000 [ 3792.775025][ T254] inet6_addr_add+0x30e/0xa40 [ 3792.775025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3792.775025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3792.775025][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.775025][ T254] netlink_unicast+0x449/0x710 [ 3792.775025][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.775025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.775025][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.775025][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.775025][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.775025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3792.775025][ T254] [ 3792.777230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.777230][ T254] netdev_get_by_index+0x5e/0x80 [ 3792.777230][ T254] fib6_nh_init+0x3d8/0x1580 [ 3792.777230][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3792.777230][ T254] ip6_route_add+0x1c/0x140 [ 3792.777230][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3792.777230][ T254] addrconf_add_dev+0xe2/0x170 [ 3792.777230][ T254] inet6_addr_add+0x12f/0xa40 [ 3792.777230][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3792.777230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3792.777230][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.777230][ T254] netlink_unicast+0x449/0x710 [ 3792.777230][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.777230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.777230][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.777230][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.777230][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.777230][ T254] [ 3792.779451][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.779451][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3792.779451][ T254] ipv6_find_idev+0x102/0x170 [ 3792.779451][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3792.779451][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3792.779451][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.779451][ T254] netlink_unicast+0x449/0x710 [ 3792.779451][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.779451][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.779451][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.779451][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.779451][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.779451][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3792.779451][ T254] [ 3792.781189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3792.781189][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3792.781189][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3792.781189][ T254] ipv6_find_idev+0x102/0x170 [ 3792.781189][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3792.781189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3792.781189][ T254] netlink_rcv_skb+0x130/0x360 [ 3792.781189][ T254] netlink_unicast+0x449/0x710 [ 3792.781189][ T254] netlink_sendmsg+0x723/0xbe0 [ 3792.781189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3792.781189][ T254] ___sys_sendmsg+0xee/0x170 [ 3792.781189][ T254] __sys_sendmsg+0xcd/0x170 [ 3792.781189][ T254] do_syscall_64+0xc6/0x1e0 [ 3792.781189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3792.781189][ T254] [ 3803.023930][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3803.024802][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.024802][ T254] dst_init+0x84/0x4a0 [ 3803.024802][ T254] dst_alloc+0x97/0x150 [ 3803.024802][ T254] ip6_dst_alloc+0x23/0x90 [ 3803.024802][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3803.024802][ T254] ip6_pol_route+0x56f/0x840 [ 3803.024802][ T254] fib6_rule_lookup+0x334/0x630 [ 3803.024802][ T254] ip6_route_output_flags+0x259/0x480 [ 3803.024802][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3803.024802][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3803.024802][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.024802][ T254] netlink_unicast+0x449/0x710 [ 3803.024802][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.024802][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.024802][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.024802][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.024802][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.024802][ T254] [ 3803.026957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.026957][ T254] netdev_get_by_index+0x5e/0x80 [ 3803.026957][ T254] fib6_nh_init+0x3d8/0x1580 [ 3803.026957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3803.026957][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3803.026957][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3803.026957][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3803.026957][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3803.026957][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3803.026957][ T254] addrconf_dad_begin+0x310/0x670 [ 3803.026957][ T254] addrconf_dad_work+0x10b/0xab0 [ 3803.026957][ T254] process_one_work+0x84d/0x18a0 [ 3803.026957][ T254] worker_thread+0x587/0xd30 [ 3803.026957][ T254] kthread+0x28a/0x350 [ 3803.026957][ T254] ret_from_fork+0x31/0x70 [ 3803.026957][ T254] ret_from_fork_asm+0x1a/0x30 [ 3803.026957][ T254] [ 3803.029105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.029105][ T254] netdev_get_by_index+0x5e/0x80 [ 3803.029105][ T254] fib6_nh_init+0x3d8/0x1580 [ 3803.029105][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3803.029105][ T254] ip6_route_add+0x1c/0x140 [ 3803.029105][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3803.029105][ T254] inet6_addr_add+0x4f8/0xa40 [ 3803.029105][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3803.029105][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3803.029105][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.029105][ T254] netlink_unicast+0x449/0x710 [ 3803.029105][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.029105][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.029105][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.029105][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.029105][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.029105][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3803.029105][ T254] [ 3803.031320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.031320][ T254] netdev_get_by_index+0x5e/0x80 [ 3803.031320][ T254] fib6_nh_init+0x3d8/0x1580 [ 3803.031320][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3803.031320][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3803.031320][ T254] ipv6_add_addr+0x411/0x2000 [ 3803.031320][ T254] inet6_addr_add+0x30e/0xa40 [ 3803.031320][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3803.031320][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3803.031320][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.031320][ T254] netlink_unicast+0x449/0x710 [ 3803.031320][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.031320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.031320][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.031320][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.031320][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.031320][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3803.031320][ T254] [ 3803.033543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.033543][ T254] netdev_get_by_index+0x5e/0x80 [ 3803.033543][ T254] fib6_nh_init+0x3d8/0x1580 [ 3803.033543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3803.033543][ T254] ip6_route_add+0x1c/0x140 [ 3803.033543][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3803.033543][ T254] addrconf_add_dev+0xe2/0x170 [ 3803.033543][ T254] inet6_addr_add+0x12f/0xa40 [ 3803.033543][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3803.033543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3803.033543][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.033543][ T254] netlink_unicast+0x449/0x710 [ 3803.033543][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.033543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.033543][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.033543][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.033543][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.033543][ T254] [ 3803.035743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.035743][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3803.035743][ T254] ipv6_find_idev+0x102/0x170 [ 3803.035743][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3803.035743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3803.035743][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.035743][ T254] netlink_unicast+0x449/0x710 [ 3803.035743][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.035743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.035743][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.035743][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.035743][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.035743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3803.035743][ T254] [ 3803.037476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3803.037476][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3803.037476][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3803.037476][ T254] ipv6_find_idev+0x102/0x170 [ 3803.037476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3803.037476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3803.037476][ T254] netlink_rcv_skb+0x130/0x360 [ 3803.037476][ T254] netlink_unicast+0x449/0x710 [ 3803.037476][ T254] netlink_sendmsg+0x723/0xbe0 [ 3803.037476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3803.037476][ T254] ___sys_sendmsg+0xee/0x170 [ 3803.037476][ T254] __sys_sendmsg+0xcd/0x170 [ 3803.037476][ T254] do_syscall_64+0xc6/0x1e0 [ 3803.037476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3803.037476][ T254] [ 3813.279918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3813.280451][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.280451][ T254] dst_init+0x84/0x4a0 [ 3813.280451][ T254] dst_alloc+0x97/0x150 [ 3813.280451][ T254] ip6_dst_alloc+0x23/0x90 [ 3813.280451][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3813.280451][ T254] ip6_pol_route+0x56f/0x840 [ 3813.280451][ T254] fib6_rule_lookup+0x334/0x630 [ 3813.280451][ T254] ip6_route_output_flags+0x259/0x480 [ 3813.280451][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3813.280451][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3813.280451][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.280451][ T254] netlink_unicast+0x449/0x710 [ 3813.280451][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.280451][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.280451][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.280451][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.280451][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.280451][ T254] [ 3813.282653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.282653][ T254] netdev_get_by_index+0x5e/0x80 [ 3813.282653][ T254] fib6_nh_init+0x3d8/0x1580 [ 3813.282653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3813.282653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3813.282653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3813.282653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3813.282653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3813.282653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3813.282653][ T254] addrconf_dad_begin+0x310/0x670 [ 3813.282653][ T254] addrconf_dad_work+0x10b/0xab0 [ 3813.282653][ T254] process_one_work+0x84d/0x18a0 [ 3813.282653][ T254] worker_thread+0x587/0xd30 [ 3813.282653][ T254] kthread+0x28a/0x350 [ 3813.282653][ T254] ret_from_fork+0x31/0x70 [ 3813.282653][ T254] ret_from_fork_asm+0x1a/0x30 [ 3813.282653][ T254] [ 3813.284813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.284813][ T254] netdev_get_by_index+0x5e/0x80 [ 3813.284813][ T254] fib6_nh_init+0x3d8/0x1580 [ 3813.284813][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3813.284813][ T254] ip6_route_add+0x1c/0x140 [ 3813.284813][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3813.284813][ T254] inet6_addr_add+0x4f8/0xa40 [ 3813.284813][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3813.284813][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3813.284813][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.284813][ T254] netlink_unicast+0x449/0x710 [ 3813.284813][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.284813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.284813][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.284813][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.284813][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.284813][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3813.284813][ T254] [ 3813.287097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.287097][ T254] netdev_get_by_index+0x5e/0x80 [ 3813.287097][ T254] fib6_nh_init+0x3d8/0x1580 [ 3813.287097][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3813.287097][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3813.287097][ T254] ipv6_add_addr+0x411/0x2000 [ 3813.287097][ T254] inet6_addr_add+0x30e/0xa40 [ 3813.287097][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3813.287097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3813.287097][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.287097][ T254] netlink_unicast+0x449/0x710 [ 3813.287097][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.287097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.287097][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.287097][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.287097][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.287097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3813.287097][ T254] [ 3813.289382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.289382][ T254] netdev_get_by_index+0x5e/0x80 [ 3813.289382][ T254] fib6_nh_init+0x3d8/0x1580 [ 3813.289382][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3813.289382][ T254] ip6_route_add+0x1c/0x140 [ 3813.289382][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3813.289382][ T254] addrconf_add_dev+0xe2/0x170 [ 3813.289382][ T254] inet6_addr_add+0x12f/0xa40 [ 3813.289382][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3813.289382][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3813.289382][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.289382][ T254] netlink_unicast+0x449/0x710 [ 3813.289382][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.289382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.289382][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.289382][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.289382][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.289382][ T254] [ 3813.291596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.291596][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3813.291596][ T254] ipv6_find_idev+0x102/0x170 [ 3813.291596][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3813.291596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3813.291596][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.291596][ T254] netlink_unicast+0x449/0x710 [ 3813.291596][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.291596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.291596][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.291596][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.291596][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.291596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3813.291596][ T254] [ 3813.293327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3813.293327][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3813.293327][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3813.293327][ T254] ipv6_find_idev+0x102/0x170 [ 3813.293327][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3813.293327][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3813.293327][ T254] netlink_rcv_skb+0x130/0x360 [ 3813.293327][ T254] netlink_unicast+0x449/0x710 [ 3813.293327][ T254] netlink_sendmsg+0x723/0xbe0 [ 3813.293327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3813.293327][ T254] ___sys_sendmsg+0xee/0x170 [ 3813.293327][ T254] __sys_sendmsg+0xcd/0x170 [ 3813.293327][ T254] do_syscall_64+0xc6/0x1e0 [ 3813.293327][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3813.293327][ T254] [ 3823.407848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3823.408372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.408372][ T254] dst_init+0x84/0x4a0 [ 3823.408372][ T254] dst_alloc+0x97/0x150 [ 3823.408372][ T254] ip6_dst_alloc+0x23/0x90 [ 3823.408372][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3823.408372][ T254] ip6_pol_route+0x56f/0x840 [ 3823.408372][ T254] fib6_rule_lookup+0x334/0x630 [ 3823.408372][ T254] ip6_route_output_flags+0x259/0x480 [ 3823.408372][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3823.408372][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3823.408372][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.408372][ T254] netlink_unicast+0x449/0x710 [ 3823.408372][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.408372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.408372][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.408372][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.408372][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.408372][ T254] [ 3823.410640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.410640][ T254] netdev_get_by_index+0x5e/0x80 [ 3823.410640][ T254] fib6_nh_init+0x3d8/0x1580 [ 3823.410640][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3823.410640][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3823.410640][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3823.410640][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3823.410640][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3823.410640][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3823.410640][ T254] addrconf_dad_begin+0x310/0x670 [ 3823.410640][ T254] addrconf_dad_work+0x10b/0xab0 [ 3823.410640][ T254] process_one_work+0x84d/0x18a0 [ 3823.410640][ T254] worker_thread+0x587/0xd30 [ 3823.410640][ T254] kthread+0x28a/0x350 [ 3823.410640][ T254] ret_from_fork+0x31/0x70 [ 3823.410640][ T254] ret_from_fork_asm+0x1a/0x30 [ 3823.410640][ T254] [ 3823.412803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.412803][ T254] netdev_get_by_index+0x5e/0x80 [ 3823.412803][ T254] fib6_nh_init+0x3d8/0x1580 [ 3823.412803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3823.412803][ T254] ip6_route_add+0x1c/0x140 [ 3823.412803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3823.412803][ T254] inet6_addr_add+0x4f8/0xa40 [ 3823.412803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3823.412803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3823.412803][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.412803][ T254] netlink_unicast+0x449/0x710 [ 3823.412803][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.412803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.412803][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.412803][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.412803][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.412803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3823.412803][ T254] [ 3823.415061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.415061][ T254] netdev_get_by_index+0x5e/0x80 [ 3823.415061][ T254] fib6_nh_init+0x3d8/0x1580 [ 3823.415061][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3823.415061][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3823.415061][ T254] ipv6_add_addr+0x411/0x2000 [ 3823.415061][ T254] inet6_addr_add+0x30e/0xa40 [ 3823.415061][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3823.415061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3823.415061][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.415061][ T254] netlink_unicast+0x449/0x710 [ 3823.415061][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.415061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.415061][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.415061][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.415061][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.415061][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3823.415061][ T254] [ 3823.417250][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.417250][ T254] netdev_get_by_index+0x5e/0x80 [ 3823.417250][ T254] fib6_nh_init+0x3d8/0x1580 [ 3823.417250][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3823.417250][ T254] ip6_route_add+0x1c/0x140 [ 3823.417250][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3823.417250][ T254] addrconf_add_dev+0xe2/0x170 [ 3823.417250][ T254] inet6_addr_add+0x12f/0xa40 [ 3823.417250][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3823.417250][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3823.417250][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.417250][ T254] netlink_unicast+0x449/0x710 [ 3823.417250][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.417250][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.417250][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.417250][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.417250][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.417250][ T254] [ 3823.419481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.419481][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3823.419481][ T254] ipv6_find_idev+0x102/0x170 [ 3823.419481][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3823.419481][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3823.419481][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.419481][ T254] netlink_unicast+0x449/0x710 [ 3823.419481][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.419481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.419481][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.419481][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.419481][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.419481][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3823.419481][ T254] [ 3823.421194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3823.421194][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3823.421194][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3823.421194][ T254] ipv6_find_idev+0x102/0x170 [ 3823.421194][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3823.421194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3823.421194][ T254] netlink_rcv_skb+0x130/0x360 [ 3823.421194][ T254] netlink_unicast+0x449/0x710 [ 3823.421194][ T254] netlink_sendmsg+0x723/0xbe0 [ 3823.421194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3823.421194][ T254] ___sys_sendmsg+0xee/0x170 [ 3823.421194][ T254] __sys_sendmsg+0xcd/0x170 [ 3823.421194][ T254] do_syscall_64+0xc6/0x1e0 [ 3823.421194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3823.421194][ T254] [ 3833.503951][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3833.504960][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.504960][ T254] dst_init+0x84/0x4a0 [ 3833.504960][ T254] dst_alloc+0x97/0x150 [ 3833.504960][ T254] ip6_dst_alloc+0x23/0x90 [ 3833.504960][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3833.504960][ T254] ip6_pol_route+0x56f/0x840 [ 3833.504960][ T254] fib6_rule_lookup+0x334/0x630 [ 3833.504960][ T254] ip6_route_output_flags+0x259/0x480 [ 3833.504960][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3833.504960][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3833.504960][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.504960][ T254] netlink_unicast+0x449/0x710 [ 3833.504960][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.504960][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.504960][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.504960][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.504960][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.504960][ T254] [ 3833.507651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.507651][ T254] netdev_get_by_index+0x5e/0x80 [ 3833.507651][ T254] fib6_nh_init+0x3d8/0x1580 [ 3833.507651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3833.507651][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3833.507651][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3833.507651][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3833.507651][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3833.507651][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3833.507651][ T254] addrconf_dad_begin+0x310/0x670 [ 3833.507651][ T254] addrconf_dad_work+0x10b/0xab0 [ 3833.507651][ T254] process_one_work+0x84d/0x18a0 [ 3833.507651][ T254] worker_thread+0x587/0xd30 [ 3833.507651][ T254] kthread+0x28a/0x350 [ 3833.507651][ T254] ret_from_fork+0x31/0x70 [ 3833.507651][ T254] ret_from_fork_asm+0x1a/0x30 [ 3833.507651][ T254] [ 3833.509804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.509804][ T254] netdev_get_by_index+0x5e/0x80 [ 3833.509804][ T254] fib6_nh_init+0x3d8/0x1580 [ 3833.509804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3833.509804][ T254] ip6_route_add+0x1c/0x140 [ 3833.509804][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3833.509804][ T254] inet6_addr_add+0x4f8/0xa40 [ 3833.509804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3833.509804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3833.509804][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.509804][ T254] netlink_unicast+0x449/0x710 [ 3833.509804][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.509804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.509804][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.509804][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.509804][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.509804][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3833.509804][ T254] [ 3833.512048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.512048][ T254] netdev_get_by_index+0x5e/0x80 [ 3833.512048][ T254] fib6_nh_init+0x3d8/0x1580 [ 3833.512048][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3833.512048][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3833.512048][ T254] ipv6_add_addr+0x411/0x2000 [ 3833.512048][ T254] inet6_addr_add+0x30e/0xa40 [ 3833.512048][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3833.512048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3833.512048][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.512048][ T254] netlink_unicast+0x449/0x710 [ 3833.512048][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.512048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.512048][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.512048][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.512048][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.512048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3833.512048][ T254] [ 3833.514235][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.514235][ T254] netdev_get_by_index+0x5e/0x80 [ 3833.514235][ T254] fib6_nh_init+0x3d8/0x1580 [ 3833.514235][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3833.514235][ T254] ip6_route_add+0x1c/0x140 [ 3833.514235][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3833.514235][ T254] addrconf_add_dev+0xe2/0x170 [ 3833.514235][ T254] inet6_addr_add+0x12f/0xa40 [ 3833.514235][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3833.514235][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3833.514235][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.514235][ T254] netlink_unicast+0x449/0x710 [ 3833.514235][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.514235][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.514235][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.514235][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.514235][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.514235][ T254] [ 3833.516444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.516444][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3833.516444][ T254] ipv6_find_idev+0x102/0x170 [ 3833.516444][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3833.516444][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3833.516444][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.516444][ T254] netlink_unicast+0x449/0x710 [ 3833.516444][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.516444][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.516444][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.516444][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.516444][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.516444][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3833.516444][ T254] [ 3833.518173][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3833.518173][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3833.518173][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3833.518173][ T254] ipv6_find_idev+0x102/0x170 [ 3833.518173][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3833.518173][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3833.518173][ T254] netlink_rcv_skb+0x130/0x360 [ 3833.518173][ T254] netlink_unicast+0x449/0x710 [ 3833.518173][ T254] netlink_sendmsg+0x723/0xbe0 [ 3833.518173][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3833.518173][ T254] ___sys_sendmsg+0xee/0x170 [ 3833.518173][ T254] __sys_sendmsg+0xcd/0x170 [ 3833.518173][ T254] do_syscall_64+0xc6/0x1e0 [ 3833.518173][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3833.518173][ T254] [ 3843.711924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3843.712657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.712657][ T254] dst_init+0x84/0x4a0 [ 3843.712657][ T254] dst_alloc+0x97/0x150 [ 3843.712657][ T254] ip6_dst_alloc+0x23/0x90 [ 3843.712657][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3843.712657][ T254] ip6_pol_route+0x56f/0x840 [ 3843.712657][ T254] fib6_rule_lookup+0x334/0x630 [ 3843.712657][ T254] ip6_route_output_flags+0x259/0x480 [ 3843.712657][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3843.712657][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3843.712657][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.712657][ T254] netlink_unicast+0x449/0x710 [ 3843.712657][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.712657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.712657][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.712657][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.712657][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.712657][ T254] [ 3843.714880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.714880][ T254] netdev_get_by_index+0x5e/0x80 [ 3843.714880][ T254] fib6_nh_init+0x3d8/0x1580 [ 3843.714880][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3843.714880][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3843.714880][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3843.714880][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3843.714880][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3843.714880][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3843.714880][ T254] addrconf_dad_begin+0x310/0x670 [ 3843.714880][ T254] addrconf_dad_work+0x10b/0xab0 [ 3843.714880][ T254] process_one_work+0x84d/0x18a0 [ 3843.714880][ T254] worker_thread+0x587/0xd30 [ 3843.714880][ T254] kthread+0x28a/0x350 [ 3843.714880][ T254] ret_from_fork+0x31/0x70 [ 3843.714880][ T254] ret_from_fork_asm+0x1a/0x30 [ 3843.714880][ T254] [ 3843.716970][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.716970][ T254] netdev_get_by_index+0x5e/0x80 [ 3843.716970][ T254] fib6_nh_init+0x3d8/0x1580 [ 3843.716970][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3843.716970][ T254] ip6_route_add+0x1c/0x140 [ 3843.716970][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3843.716970][ T254] inet6_addr_add+0x4f8/0xa40 [ 3843.716970][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3843.716970][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3843.716970][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.716970][ T254] netlink_unicast+0x449/0x710 [ 3843.716970][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.716970][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.716970][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.716970][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.716970][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.716970][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3843.716970][ T254] [ 3843.719153][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.719153][ T254] netdev_get_by_index+0x5e/0x80 [ 3843.719153][ T254] fib6_nh_init+0x3d8/0x1580 [ 3843.719153][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3843.719153][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3843.719153][ T254] ipv6_add_addr+0x411/0x2000 [ 3843.719153][ T254] inet6_addr_add+0x30e/0xa40 [ 3843.719153][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3843.719153][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3843.719153][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.719153][ T254] netlink_unicast+0x449/0x710 [ 3843.719153][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.719153][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.719153][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.719153][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.719153][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.719153][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3843.719153][ T254] [ 3843.721601][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.721601][ T254] netdev_get_by_index+0x5e/0x80 [ 3843.721601][ T254] fib6_nh_init+0x3d8/0x1580 [ 3843.721601][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3843.721601][ T254] ip6_route_add+0x1c/0x140 [ 3843.721601][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3843.721601][ T254] addrconf_add_dev+0xe2/0x170 [ 3843.721601][ T254] inet6_addr_add+0x12f/0xa40 [ 3843.721601][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3843.721601][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3843.721601][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.721601][ T254] netlink_unicast+0x449/0x710 [ 3843.721601][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.721601][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.721601][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.721601][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.721601][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.721601][ T254] [ 3843.725245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.725245][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3843.725245][ T254] ipv6_find_idev+0x102/0x170 [ 3843.725245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3843.725245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3843.725245][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.725245][ T254] netlink_unicast+0x449/0x710 [ 3843.725245][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.725245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.725245][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.725245][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.725245][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.725245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3843.725245][ T254] [ 3843.728715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3843.728715][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3843.728715][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3843.728715][ T254] ipv6_find_idev+0x102/0x170 [ 3843.728715][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3843.728715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3843.728715][ T254] netlink_rcv_skb+0x130/0x360 [ 3843.728715][ T254] netlink_unicast+0x449/0x710 [ 3843.728715][ T254] netlink_sendmsg+0x723/0xbe0 [ 3843.728715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3843.728715][ T254] ___sys_sendmsg+0xee/0x170 [ 3843.728715][ T254] __sys_sendmsg+0xcd/0x170 [ 3843.728715][ T254] do_syscall_64+0xc6/0x1e0 [ 3843.728715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3843.728715][ T254] [ 3853.983912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3853.984771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.984771][ T254] dst_init+0x84/0x4a0 [ 3853.984771][ T254] dst_alloc+0x97/0x150 [ 3853.984771][ T254] ip6_dst_alloc+0x23/0x90 [ 3853.984771][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3853.984771][ T254] ip6_pol_route+0x56f/0x840 [ 3853.984771][ T254] fib6_rule_lookup+0x334/0x630 [ 3853.984771][ T254] ip6_route_output_flags+0x259/0x480 [ 3853.984771][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3853.984771][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3853.984771][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.984771][ T254] netlink_unicast+0x449/0x710 [ 3853.984771][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.984771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.984771][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.984771][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.984771][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.984771][ T254] [ 3853.986988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.986988][ T254] netdev_get_by_index+0x5e/0x80 [ 3853.986988][ T254] fib6_nh_init+0x3d8/0x1580 [ 3853.986988][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3853.986988][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3853.986988][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3853.986988][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3853.986988][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3853.986988][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3853.986988][ T254] addrconf_dad_begin+0x310/0x670 [ 3853.986988][ T254] addrconf_dad_work+0x10b/0xab0 [ 3853.986988][ T254] process_one_work+0x84d/0x18a0 [ 3853.986988][ T254] worker_thread+0x587/0xd30 [ 3853.986988][ T254] kthread+0x28a/0x350 [ 3853.986988][ T254] ret_from_fork+0x31/0x70 [ 3853.986988][ T254] ret_from_fork_asm+0x1a/0x30 [ 3853.986988][ T254] [ 3853.989121][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.989121][ T254] netdev_get_by_index+0x5e/0x80 [ 3853.989121][ T254] fib6_nh_init+0x3d8/0x1580 [ 3853.989121][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3853.989121][ T254] ip6_route_add+0x1c/0x140 [ 3853.989121][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3853.989121][ T254] inet6_addr_add+0x4f8/0xa40 [ 3853.989121][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3853.989121][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3853.989121][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.989121][ T254] netlink_unicast+0x449/0x710 [ 3853.989121][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.989121][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.989121][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.989121][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.989121][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.989121][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3853.989121][ T254] [ 3853.991785][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.991785][ T254] netdev_get_by_index+0x5e/0x80 [ 3853.991785][ T254] fib6_nh_init+0x3d8/0x1580 [ 3853.991785][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3853.991785][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3853.991785][ T254] ipv6_add_addr+0x411/0x2000 [ 3853.991785][ T254] inet6_addr_add+0x30e/0xa40 [ 3853.991785][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3853.991785][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3853.991785][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.991785][ T254] netlink_unicast+0x449/0x710 [ 3853.991785][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.991785][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.991785][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.991785][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.991785][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.991785][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3853.991785][ T254] [ 3853.993973][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.993973][ T254] netdev_get_by_index+0x5e/0x80 [ 3853.993973][ T254] fib6_nh_init+0x3d8/0x1580 [ 3853.993973][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3853.993973][ T254] ip6_route_add+0x1c/0x140 [ 3853.993973][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3853.993973][ T254] addrconf_add_dev+0xe2/0x170 [ 3853.993973][ T254] inet6_addr_add+0x12f/0xa40 [ 3853.993973][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3853.993973][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3853.993973][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.993973][ T254] netlink_unicast+0x449/0x710 [ 3853.993973][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.993973][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.993973][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.993973][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.993973][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.993973][ T254] [ 3853.996174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.996174][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3853.996174][ T254] ipv6_find_idev+0x102/0x170 [ 3853.996174][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3853.996174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3853.996174][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.996174][ T254] netlink_unicast+0x449/0x710 [ 3853.996174][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.996174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.996174][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.996174][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.996174][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.996174][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3853.996174][ T254] [ 3853.997870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3853.997870][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3853.997870][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3853.997870][ T254] ipv6_find_idev+0x102/0x170 [ 3853.997870][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3853.997870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3853.997870][ T254] netlink_rcv_skb+0x130/0x360 [ 3853.997870][ T254] netlink_unicast+0x449/0x710 [ 3853.997870][ T254] netlink_sendmsg+0x723/0xbe0 [ 3853.997870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3853.997870][ T254] ___sys_sendmsg+0xee/0x170 [ 3853.997870][ T254] __sys_sendmsg+0xcd/0x170 [ 3853.997870][ T254] do_syscall_64+0xc6/0x1e0 [ 3853.997870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3853.997870][ T254] [ 3864.143936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3864.144801][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.144801][ T254] dst_init+0x84/0x4a0 [ 3864.144801][ T254] dst_alloc+0x97/0x150 [ 3864.144801][ T254] ip6_dst_alloc+0x23/0x90 [ 3864.144801][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3864.144801][ T254] ip6_pol_route+0x56f/0x840 [ 3864.144801][ T254] fib6_rule_lookup+0x334/0x630 [ 3864.144801][ T254] ip6_route_output_flags+0x259/0x480 [ 3864.144801][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3864.144801][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3864.144801][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.144801][ T254] netlink_unicast+0x449/0x710 [ 3864.144801][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.144801][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.144801][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.144801][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.144801][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.144801][ T254] [ 3864.147012][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.147012][ T254] netdev_get_by_index+0x5e/0x80 [ 3864.147012][ T254] fib6_nh_init+0x3d8/0x1580 [ 3864.147012][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3864.147012][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3864.147012][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3864.147012][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3864.147012][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3864.147012][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3864.147012][ T254] addrconf_dad_begin+0x310/0x670 [ 3864.147012][ T254] addrconf_dad_work+0x10b/0xab0 [ 3864.147012][ T254] process_one_work+0x84d/0x18a0 [ 3864.147012][ T254] worker_thread+0x587/0xd30 [ 3864.147012][ T254] kthread+0x28a/0x350 [ 3864.147012][ T254] ret_from_fork+0x31/0x70 [ 3864.147012][ T254] ret_from_fork_asm+0x1a/0x30 [ 3864.147012][ T254] [ 3864.149143][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.149143][ T254] netdev_get_by_index+0x5e/0x80 [ 3864.149143][ T254] fib6_nh_init+0x3d8/0x1580 [ 3864.149143][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3864.149143][ T254] ip6_route_add+0x1c/0x140 [ 3864.149143][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3864.149143][ T254] inet6_addr_add+0x4f8/0xa40 [ 3864.149143][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3864.149143][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3864.149143][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.149143][ T254] netlink_unicast+0x449/0x710 [ 3864.149143][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.149143][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.149143][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.149143][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.149143][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.149143][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3864.149143][ T254] [ 3864.151370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.151370][ T254] netdev_get_by_index+0x5e/0x80 [ 3864.151370][ T254] fib6_nh_init+0x3d8/0x1580 [ 3864.151370][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3864.151370][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3864.151370][ T254] ipv6_add_addr+0x411/0x2000 [ 3864.151370][ T254] inet6_addr_add+0x30e/0xa40 [ 3864.151370][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3864.151370][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3864.151370][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.151370][ T254] netlink_unicast+0x449/0x710 [ 3864.151370][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.151370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.151370][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.151370][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.151370][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.151370][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3864.151370][ T254] [ 3864.153700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.153700][ T254] netdev_get_by_index+0x5e/0x80 [ 3864.153700][ T254] fib6_nh_init+0x3d8/0x1580 [ 3864.153700][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3864.153700][ T254] ip6_route_add+0x1c/0x140 [ 3864.153700][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3864.153700][ T254] addrconf_add_dev+0xe2/0x170 [ 3864.153700][ T254] inet6_addr_add+0x12f/0xa40 [ 3864.153700][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3864.153700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3864.153700][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.153700][ T254] netlink_unicast+0x449/0x710 [ 3864.153700][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.153700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.153700][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.153700][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.153700][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.153700][ T254] [ 3864.155935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.155935][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3864.155935][ T254] ipv6_find_idev+0x102/0x170 [ 3864.155935][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3864.155935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3864.155935][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.155935][ T254] netlink_unicast+0x449/0x710 [ 3864.155935][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.155935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.155935][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.155935][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.155935][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.155935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3864.155935][ T254] [ 3864.157687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3864.157687][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3864.157687][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3864.157687][ T254] ipv6_find_idev+0x102/0x170 [ 3864.157687][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3864.157687][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3864.157687][ T254] netlink_rcv_skb+0x130/0x360 [ 3864.157687][ T254] netlink_unicast+0x449/0x710 [ 3864.157687][ T254] netlink_sendmsg+0x723/0xbe0 [ 3864.157687][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3864.157687][ T254] ___sys_sendmsg+0xee/0x170 [ 3864.157687][ T254] __sys_sendmsg+0xcd/0x170 [ 3864.157687][ T254] do_syscall_64+0xc6/0x1e0 [ 3864.157687][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3864.157687][ T254] [ 3874.399968][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3874.400880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.400880][ T254] dst_init+0x84/0x4a0 [ 3874.400880][ T254] dst_alloc+0x97/0x150 [ 3874.400880][ T254] ip6_dst_alloc+0x23/0x90 [ 3874.400880][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3874.400880][ T254] ip6_pol_route+0x56f/0x840 [ 3874.400880][ T254] fib6_rule_lookup+0x334/0x630 [ 3874.400880][ T254] ip6_route_output_flags+0x259/0x480 [ 3874.400880][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3874.400880][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3874.400880][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.400880][ T254] netlink_unicast+0x449/0x710 [ 3874.400880][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.400880][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.400880][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.400880][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.400880][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.400880][ T254] [ 3874.403037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.403037][ T254] netdev_get_by_index+0x5e/0x80 [ 3874.403037][ T254] fib6_nh_init+0x3d8/0x1580 [ 3874.403037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3874.403037][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3874.403037][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3874.403037][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3874.403037][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3874.403037][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3874.403037][ T254] addrconf_dad_begin+0x310/0x670 [ 3874.403037][ T254] addrconf_dad_work+0x10b/0xab0 [ 3874.403037][ T254] process_one_work+0x84d/0x18a0 [ 3874.403037][ T254] worker_thread+0x587/0xd30 [ 3874.403037][ T254] kthread+0x28a/0x350 [ 3874.403037][ T254] ret_from_fork+0x31/0x70 [ 3874.403037][ T254] ret_from_fork_asm+0x1a/0x30 [ 3874.403037][ T254] [ 3874.405132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.405132][ T254] netdev_get_by_index+0x5e/0x80 [ 3874.405132][ T254] fib6_nh_init+0x3d8/0x1580 [ 3874.405132][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3874.405132][ T254] ip6_route_add+0x1c/0x140 [ 3874.405132][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3874.405132][ T254] inet6_addr_add+0x4f8/0xa40 [ 3874.405132][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3874.405132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3874.405132][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.405132][ T254] netlink_unicast+0x449/0x710 [ 3874.405132][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.405132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.405132][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.405132][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.405132][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.405132][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3874.405132][ T254] [ 3874.407319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.407319][ T254] netdev_get_by_index+0x5e/0x80 [ 3874.407319][ T254] fib6_nh_init+0x3d8/0x1580 [ 3874.407319][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3874.407319][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3874.407319][ T254] ipv6_add_addr+0x411/0x2000 [ 3874.407319][ T254] inet6_addr_add+0x30e/0xa40 [ 3874.407319][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3874.407319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3874.407319][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.407319][ T254] netlink_unicast+0x449/0x710 [ 3874.407319][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.407319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.407319][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.407319][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.407319][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.407319][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3874.407319][ T254] [ 3874.409603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.409603][ T254] netdev_get_by_index+0x5e/0x80 [ 3874.409603][ T254] fib6_nh_init+0x3d8/0x1580 [ 3874.409603][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3874.409603][ T254] ip6_route_add+0x1c/0x140 [ 3874.409603][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3874.409603][ T254] addrconf_add_dev+0xe2/0x170 [ 3874.409603][ T254] inet6_addr_add+0x12f/0xa40 [ 3874.409603][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3874.409603][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3874.409603][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.409603][ T254] netlink_unicast+0x449/0x710 [ 3874.409603][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.409603][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.409603][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.409603][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.409603][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.409603][ T254] [ 3874.411814][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.411814][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3874.411814][ T254] ipv6_find_idev+0x102/0x170 [ 3874.411814][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3874.411814][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3874.411814][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.411814][ T254] netlink_unicast+0x449/0x710 [ 3874.411814][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.411814][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.411814][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.411814][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.411814][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.411814][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3874.411814][ T254] [ 3874.413573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3874.413573][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3874.413573][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3874.413573][ T254] ipv6_find_idev+0x102/0x170 [ 3874.413573][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3874.413573][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3874.413573][ T254] netlink_rcv_skb+0x130/0x360 [ 3874.413573][ T254] netlink_unicast+0x449/0x710 [ 3874.413573][ T254] netlink_sendmsg+0x723/0xbe0 [ 3874.413573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3874.413573][ T254] ___sys_sendmsg+0xee/0x170 [ 3874.413573][ T254] __sys_sendmsg+0xcd/0x170 [ 3874.413573][ T254] do_syscall_64+0xc6/0x1e0 [ 3874.413573][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3874.413573][ T254] [ 3884.655951][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3884.656918][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.656918][ T254] dst_init+0x84/0x4a0 [ 3884.656918][ T254] dst_alloc+0x97/0x150 [ 3884.656918][ T254] ip6_dst_alloc+0x23/0x90 [ 3884.656918][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3884.656918][ T254] ip6_pol_route+0x56f/0x840 [ 3884.656918][ T254] fib6_rule_lookup+0x334/0x630 [ 3884.656918][ T254] ip6_route_output_flags+0x259/0x480 [ 3884.656918][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3884.656918][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3884.656918][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.656918][ T254] netlink_unicast+0x449/0x710 [ 3884.656918][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.656918][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.656918][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.656918][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.656918][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.656918][ T254] [ 3884.659107][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.659107][ T254] netdev_get_by_index+0x5e/0x80 [ 3884.659107][ T254] fib6_nh_init+0x3d8/0x1580 [ 3884.659107][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3884.659107][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3884.659107][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3884.659107][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3884.659107][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3884.659107][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3884.659107][ T254] addrconf_dad_begin+0x310/0x670 [ 3884.659107][ T254] addrconf_dad_work+0x10b/0xab0 [ 3884.659107][ T254] process_one_work+0x84d/0x18a0 [ 3884.659107][ T254] worker_thread+0x587/0xd30 [ 3884.659107][ T254] kthread+0x28a/0x350 [ 3884.659107][ T254] ret_from_fork+0x31/0x70 [ 3884.659107][ T254] ret_from_fork_asm+0x1a/0x30 [ 3884.659107][ T254] [ 3884.661253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.661253][ T254] netdev_get_by_index+0x5e/0x80 [ 3884.661253][ T254] fib6_nh_init+0x3d8/0x1580 [ 3884.661253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3884.661253][ T254] ip6_route_add+0x1c/0x140 [ 3884.661253][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3884.661253][ T254] inet6_addr_add+0x4f8/0xa40 [ 3884.661253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3884.661253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3884.661253][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.661253][ T254] netlink_unicast+0x449/0x710 [ 3884.661253][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.661253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.661253][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.661253][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.661253][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.661253][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3884.661253][ T254] [ 3884.663499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.663499][ T254] netdev_get_by_index+0x5e/0x80 [ 3884.663499][ T254] fib6_nh_init+0x3d8/0x1580 [ 3884.663499][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3884.663499][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3884.663499][ T254] ipv6_add_addr+0x411/0x2000 [ 3884.663499][ T254] inet6_addr_add+0x30e/0xa40 [ 3884.663499][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3884.663499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3884.663499][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.663499][ T254] netlink_unicast+0x449/0x710 [ 3884.663499][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.663499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.663499][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.663499][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.663499][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.663499][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3884.663499][ T254] [ 3884.665740][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.665740][ T254] netdev_get_by_index+0x5e/0x80 [ 3884.665740][ T254] fib6_nh_init+0x3d8/0x1580 [ 3884.665740][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3884.665740][ T254] ip6_route_add+0x1c/0x140 [ 3884.665740][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3884.665740][ T254] addrconf_add_dev+0xe2/0x170 [ 3884.665740][ T254] inet6_addr_add+0x12f/0xa40 [ 3884.665740][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3884.665740][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3884.665740][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.665740][ T254] netlink_unicast+0x449/0x710 [ 3884.665740][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.665740][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.665740][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.665740][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.665740][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.665740][ T254] [ 3884.667949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.667949][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3884.667949][ T254] ipv6_find_idev+0x102/0x170 [ 3884.667949][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3884.667949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3884.667949][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.667949][ T254] netlink_unicast+0x449/0x710 [ 3884.667949][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.667949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.667949][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.667949][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.667949][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.667949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3884.667949][ T254] [ 3884.669683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3884.669683][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3884.669683][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3884.669683][ T254] ipv6_find_idev+0x102/0x170 [ 3884.669683][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3884.669683][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3884.669683][ T254] netlink_rcv_skb+0x130/0x360 [ 3884.669683][ T254] netlink_unicast+0x449/0x710 [ 3884.669683][ T254] netlink_sendmsg+0x723/0xbe0 [ 3884.669683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3884.669683][ T254] ___sys_sendmsg+0xee/0x170 [ 3884.669683][ T254] __sys_sendmsg+0xcd/0x170 [ 3884.669683][ T254] do_syscall_64+0xc6/0x1e0 [ 3884.669683][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3884.669683][ T254] [ 3894.911790][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3894.912431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.912431][ T254] dst_init+0x84/0x4a0 [ 3894.912431][ T254] dst_alloc+0x97/0x150 [ 3894.912431][ T254] ip6_dst_alloc+0x23/0x90 [ 3894.912431][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3894.912431][ T254] ip6_pol_route+0x56f/0x840 [ 3894.912431][ T254] fib6_rule_lookup+0x334/0x630 [ 3894.912431][ T254] ip6_route_output_flags+0x259/0x480 [ 3894.912431][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3894.912431][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3894.912431][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.912431][ T254] netlink_unicast+0x449/0x710 [ 3894.912431][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.912431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.912431][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.912431][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.912431][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.912431][ T254] [ 3894.914889][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.914889][ T254] netdev_get_by_index+0x5e/0x80 [ 3894.914889][ T254] fib6_nh_init+0x3d8/0x1580 [ 3894.914889][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3894.914889][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3894.914889][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3894.914889][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3894.914889][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3894.914889][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3894.914889][ T254] addrconf_dad_begin+0x310/0x670 [ 3894.914889][ T254] addrconf_dad_work+0x10b/0xab0 [ 3894.914889][ T254] process_one_work+0x84d/0x18a0 [ 3894.914889][ T254] worker_thread+0x587/0xd30 [ 3894.914889][ T254] kthread+0x28a/0x350 [ 3894.914889][ T254] ret_from_fork+0x31/0x70 [ 3894.914889][ T254] ret_from_fork_asm+0x1a/0x30 [ 3894.914889][ T254] [ 3894.917295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.917295][ T254] netdev_get_by_index+0x5e/0x80 [ 3894.917295][ T254] fib6_nh_init+0x3d8/0x1580 [ 3894.917295][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3894.917295][ T254] ip6_route_add+0x1c/0x140 [ 3894.917295][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3894.917295][ T254] inet6_addr_add+0x4f8/0xa40 [ 3894.917295][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3894.917295][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3894.917295][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.917295][ T254] netlink_unicast+0x449/0x710 [ 3894.917295][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.917295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.917295][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.917295][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.917295][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.917295][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3894.917295][ T254] [ 3894.919812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.919812][ T254] netdev_get_by_index+0x5e/0x80 [ 3894.919812][ T254] fib6_nh_init+0x3d8/0x1580 [ 3894.919812][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3894.919812][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3894.919812][ T254] ipv6_add_addr+0x411/0x2000 [ 3894.919812][ T254] inet6_addr_add+0x30e/0xa40 [ 3894.919812][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3894.919812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3894.919812][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.919812][ T254] netlink_unicast+0x449/0x710 [ 3894.919812][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.919812][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.919812][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.919812][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.919812][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.919812][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3894.919812][ T254] [ 3894.922322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.922322][ T254] netdev_get_by_index+0x5e/0x80 [ 3894.922322][ T254] fib6_nh_init+0x3d8/0x1580 [ 3894.922322][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3894.922322][ T254] ip6_route_add+0x1c/0x140 [ 3894.922322][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3894.922322][ T254] addrconf_add_dev+0xe2/0x170 [ 3894.922322][ T254] inet6_addr_add+0x12f/0xa40 [ 3894.922322][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3894.922322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3894.922322][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.922322][ T254] netlink_unicast+0x449/0x710 [ 3894.922322][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.922322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.922322][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.922322][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.922322][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.922322][ T254] [ 3894.924792][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.924792][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3894.924792][ T254] ipv6_find_idev+0x102/0x170 [ 3894.924792][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3894.924792][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3894.924792][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.924792][ T254] netlink_unicast+0x449/0x710 [ 3894.924792][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.924792][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.924792][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.924792][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.924792][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.924792][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3894.924792][ T254] [ 3894.926727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3894.926727][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3894.926727][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3894.926727][ T254] ipv6_find_idev+0x102/0x170 [ 3894.926727][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3894.926727][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3894.926727][ T254] netlink_rcv_skb+0x130/0x360 [ 3894.926727][ T254] netlink_unicast+0x449/0x710 [ 3894.926727][ T254] netlink_sendmsg+0x723/0xbe0 [ 3894.926727][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3894.926727][ T254] ___sys_sendmsg+0xee/0x170 [ 3894.926727][ T254] __sys_sendmsg+0xcd/0x170 [ 3894.926727][ T254] do_syscall_64+0xc6/0x1e0 [ 3894.926727][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3894.926727][ T254] [ 3905.167927][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3905.168678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.168678][ T254] dst_init+0x84/0x4a0 [ 3905.168678][ T254] dst_alloc+0x97/0x150 [ 3905.168678][ T254] ip6_dst_alloc+0x23/0x90 [ 3905.168678][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3905.168678][ T254] ip6_pol_route+0x56f/0x840 [ 3905.168678][ T254] fib6_rule_lookup+0x334/0x630 [ 3905.168678][ T254] ip6_route_output_flags+0x259/0x480 [ 3905.168678][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3905.168678][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3905.168678][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.168678][ T254] netlink_unicast+0x449/0x710 [ 3905.168678][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.168678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.168678][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.168678][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.168678][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.168678][ T254] [ 3905.170875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.170875][ T254] netdev_get_by_index+0x5e/0x80 [ 3905.170875][ T254] fib6_nh_init+0x3d8/0x1580 [ 3905.170875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3905.170875][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3905.170875][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3905.170875][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3905.170875][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3905.170875][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3905.170875][ T254] addrconf_dad_begin+0x310/0x670 [ 3905.170875][ T254] addrconf_dad_work+0x10b/0xab0 [ 3905.170875][ T254] process_one_work+0x84d/0x18a0 [ 3905.170875][ T254] worker_thread+0x587/0xd30 [ 3905.170875][ T254] kthread+0x28a/0x350 [ 3905.170875][ T254] ret_from_fork+0x31/0x70 [ 3905.170875][ T254] ret_from_fork_asm+0x1a/0x30 [ 3905.170875][ T254] [ 3905.172996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.172996][ T254] netdev_get_by_index+0x5e/0x80 [ 3905.172996][ T254] fib6_nh_init+0x3d8/0x1580 [ 3905.172996][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3905.172996][ T254] ip6_route_add+0x1c/0x140 [ 3905.172996][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3905.172996][ T254] inet6_addr_add+0x4f8/0xa40 [ 3905.172996][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3905.172996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3905.172996][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.172996][ T254] netlink_unicast+0x449/0x710 [ 3905.172996][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.172996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.172996][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.172996][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.172996][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.172996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3905.172996][ T254] [ 3905.175181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.175181][ T254] netdev_get_by_index+0x5e/0x80 [ 3905.175181][ T254] fib6_nh_init+0x3d8/0x1580 [ 3905.175181][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3905.175181][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3905.175181][ T254] ipv6_add_addr+0x411/0x2000 [ 3905.175181][ T254] inet6_addr_add+0x30e/0xa40 [ 3905.175181][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3905.175181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3905.175181][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.175181][ T254] netlink_unicast+0x449/0x710 [ 3905.175181][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.175181][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.175181][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.175181][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.175181][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.175181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3905.175181][ T254] [ 3905.177367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.177367][ T254] netdev_get_by_index+0x5e/0x80 [ 3905.177367][ T254] fib6_nh_init+0x3d8/0x1580 [ 3905.177367][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3905.177367][ T254] ip6_route_add+0x1c/0x140 [ 3905.177367][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3905.177367][ T254] addrconf_add_dev+0xe2/0x170 [ 3905.177367][ T254] inet6_addr_add+0x12f/0xa40 [ 3905.177367][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3905.177367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3905.177367][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.177367][ T254] netlink_unicast+0x449/0x710 [ 3905.177367][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.177367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.177367][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.177367][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.177367][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.177367][ T254] [ 3905.179510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.179510][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3905.179510][ T254] ipv6_find_idev+0x102/0x170 [ 3905.179510][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3905.179510][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3905.179510][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.179510][ T254] netlink_unicast+0x449/0x710 [ 3905.179510][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.179510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.179510][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.179510][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.179510][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.179510][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3905.179510][ T254] [ 3905.181198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3905.181198][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3905.181198][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3905.181198][ T254] ipv6_find_idev+0x102/0x170 [ 3905.181198][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3905.181198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3905.181198][ T254] netlink_rcv_skb+0x130/0x360 [ 3905.181198][ T254] netlink_unicast+0x449/0x710 [ 3905.181198][ T254] netlink_sendmsg+0x723/0xbe0 [ 3905.181198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3905.181198][ T254] ___sys_sendmsg+0xee/0x170 [ 3905.181198][ T254] __sys_sendmsg+0xcd/0x170 [ 3905.181198][ T254] do_syscall_64+0xc6/0x1e0 [ 3905.181198][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3905.181198][ T254] [ 3915.343926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3915.344643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.344643][ T254] dst_init+0x84/0x4a0 [ 3915.344643][ T254] dst_alloc+0x97/0x150 [ 3915.344643][ T254] ip6_dst_alloc+0x23/0x90 [ 3915.344643][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3915.344643][ T254] ip6_pol_route+0x56f/0x840 [ 3915.344643][ T254] fib6_rule_lookup+0x334/0x630 [ 3915.344643][ T254] ip6_route_output_flags+0x259/0x480 [ 3915.344643][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3915.344643][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3915.344643][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.344643][ T254] netlink_unicast+0x449/0x710 [ 3915.344643][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.344643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.344643][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.344643][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.344643][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.344643][ T254] [ 3915.346786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.346786][ T254] netdev_get_by_index+0x5e/0x80 [ 3915.346786][ T254] fib6_nh_init+0x3d8/0x1580 [ 3915.346786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3915.346786][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3915.346786][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3915.346786][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3915.346786][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3915.346786][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3915.346786][ T254] addrconf_dad_begin+0x310/0x670 [ 3915.346786][ T254] addrconf_dad_work+0x10b/0xab0 [ 3915.346786][ T254] process_one_work+0x84d/0x18a0 [ 3915.346786][ T254] worker_thread+0x587/0xd30 [ 3915.346786][ T254] kthread+0x28a/0x350 [ 3915.346786][ T254] ret_from_fork+0x31/0x70 [ 3915.346786][ T254] ret_from_fork_asm+0x1a/0x30 [ 3915.346786][ T254] [ 3915.348953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.348953][ T254] netdev_get_by_index+0x5e/0x80 [ 3915.348953][ T254] fib6_nh_init+0x3d8/0x1580 [ 3915.348953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3915.348953][ T254] ip6_route_add+0x1c/0x140 [ 3915.348953][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3915.348953][ T254] inet6_addr_add+0x4f8/0xa40 [ 3915.348953][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3915.348953][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3915.348953][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.348953][ T254] netlink_unicast+0x449/0x710 [ 3915.348953][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.348953][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.348953][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.348953][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.348953][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.348953][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3915.348953][ T254] [ 3915.352724][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.352724][ T254] netdev_get_by_index+0x5e/0x80 [ 3915.352724][ T254] fib6_nh_init+0x3d8/0x1580 [ 3915.352724][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3915.352724][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3915.352724][ T254] ipv6_add_addr+0x411/0x2000 [ 3915.352724][ T254] inet6_addr_add+0x30e/0xa40 [ 3915.352724][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3915.352724][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3915.352724][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.352724][ T254] netlink_unicast+0x449/0x710 [ 3915.352724][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.352724][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.352724][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.352724][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.352724][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.352724][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3915.352724][ T254] [ 3915.356433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.356433][ T254] netdev_get_by_index+0x5e/0x80 [ 3915.356433][ T254] fib6_nh_init+0x3d8/0x1580 [ 3915.356433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3915.356433][ T254] ip6_route_add+0x1c/0x140 [ 3915.356433][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3915.356433][ T254] addrconf_add_dev+0xe2/0x170 [ 3915.356433][ T254] inet6_addr_add+0x12f/0xa40 [ 3915.356433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3915.356433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3915.356433][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.356433][ T254] netlink_unicast+0x449/0x710 [ 3915.356433][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.356433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.356433][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.356433][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.356433][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.356433][ T254] [ 3915.360110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.360110][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3915.360110][ T254] ipv6_find_idev+0x102/0x170 [ 3915.360110][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3915.360110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3915.360110][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.360110][ T254] netlink_unicast+0x449/0x710 [ 3915.360110][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.360110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.360110][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.360110][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.360110][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.360110][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3915.360110][ T254] [ 3915.362932][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3915.362932][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3915.362932][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3915.362932][ T254] ipv6_find_idev+0x102/0x170 [ 3915.362932][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3915.362932][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3915.362932][ T254] netlink_rcv_skb+0x130/0x360 [ 3915.362932][ T254] netlink_unicast+0x449/0x710 [ 3915.362932][ T254] netlink_sendmsg+0x723/0xbe0 [ 3915.362932][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3915.362932][ T254] ___sys_sendmsg+0xee/0x170 [ 3915.362932][ T254] __sys_sendmsg+0xcd/0x170 [ 3915.362932][ T254] do_syscall_64+0xc6/0x1e0 [ 3915.362932][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3915.362932][ T254] [ 3925.607919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3925.608572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.608572][ T254] dst_init+0x84/0x4a0 [ 3925.608572][ T254] dst_alloc+0x97/0x150 [ 3925.608572][ T254] ip6_dst_alloc+0x23/0x90 [ 3925.608572][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3925.608572][ T254] ip6_pol_route+0x56f/0x840 [ 3925.608572][ T254] fib6_rule_lookup+0x334/0x630 [ 3925.608572][ T254] ip6_route_output_flags+0x259/0x480 [ 3925.608572][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3925.608572][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3925.608572][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.608572][ T254] netlink_unicast+0x449/0x710 [ 3925.608572][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.608572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.608572][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.608572][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.608572][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.608572][ T254] [ 3925.610778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.610778][ T254] netdev_get_by_index+0x5e/0x80 [ 3925.610778][ T254] fib6_nh_init+0x3d8/0x1580 [ 3925.610778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3925.610778][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3925.610778][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3925.610778][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3925.610778][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3925.610778][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3925.610778][ T254] addrconf_dad_begin+0x310/0x670 [ 3925.610778][ T254] addrconf_dad_work+0x10b/0xab0 [ 3925.610778][ T254] process_one_work+0x84d/0x18a0 [ 3925.610778][ T254] worker_thread+0x587/0xd30 [ 3925.610778][ T254] kthread+0x28a/0x350 [ 3925.610778][ T254] ret_from_fork+0x31/0x70 [ 3925.610778][ T254] ret_from_fork_asm+0x1a/0x30 [ 3925.610778][ T254] [ 3925.612875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.612875][ T254] netdev_get_by_index+0x5e/0x80 [ 3925.612875][ T254] fib6_nh_init+0x3d8/0x1580 [ 3925.612875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3925.612875][ T254] ip6_route_add+0x1c/0x140 [ 3925.612875][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3925.612875][ T254] inet6_addr_add+0x4f8/0xa40 [ 3925.612875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3925.612875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3925.612875][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.612875][ T254] netlink_unicast+0x449/0x710 [ 3925.612875][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.612875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.612875][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.612875][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.612875][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.612875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3925.612875][ T254] [ 3925.615160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.615160][ T254] netdev_get_by_index+0x5e/0x80 [ 3925.615160][ T254] fib6_nh_init+0x3d8/0x1580 [ 3925.615160][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3925.615160][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3925.615160][ T254] ipv6_add_addr+0x411/0x2000 [ 3925.615160][ T254] inet6_addr_add+0x30e/0xa40 [ 3925.615160][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3925.615160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3925.615160][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.615160][ T254] netlink_unicast+0x449/0x710 [ 3925.615160][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.615160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.615160][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.615160][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.615160][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.615160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3925.615160][ T254] [ 3925.617342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.617342][ T254] netdev_get_by_index+0x5e/0x80 [ 3925.617342][ T254] fib6_nh_init+0x3d8/0x1580 [ 3925.617342][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3925.617342][ T254] ip6_route_add+0x1c/0x140 [ 3925.617342][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3925.617342][ T254] addrconf_add_dev+0xe2/0x170 [ 3925.617342][ T254] inet6_addr_add+0x12f/0xa40 [ 3925.617342][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3925.617342][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3925.617342][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.617342][ T254] netlink_unicast+0x449/0x710 [ 3925.617342][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.617342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.617342][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.617342][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.617342][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.617342][ T254] [ 3925.619557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.619557][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3925.619557][ T254] ipv6_find_idev+0x102/0x170 [ 3925.619557][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3925.619557][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3925.619557][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.619557][ T254] netlink_unicast+0x449/0x710 [ 3925.619557][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.619557][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.619557][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.619557][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.619557][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.619557][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3925.619557][ T254] [ 3925.621280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3925.621280][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3925.621280][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3925.621280][ T254] ipv6_find_idev+0x102/0x170 [ 3925.621280][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3925.621280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3925.621280][ T254] netlink_rcv_skb+0x130/0x360 [ 3925.621280][ T254] netlink_unicast+0x449/0x710 [ 3925.621280][ T254] netlink_sendmsg+0x723/0xbe0 [ 3925.621280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3925.621280][ T254] ___sys_sendmsg+0xee/0x170 [ 3925.621280][ T254] __sys_sendmsg+0xcd/0x170 [ 3925.621280][ T254] do_syscall_64+0xc6/0x1e0 [ 3925.621280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3925.621280][ T254] [ 3935.863920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3935.864956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.864956][ T254] dst_init+0x84/0x4a0 [ 3935.864956][ T254] dst_alloc+0x97/0x150 [ 3935.864956][ T254] ip6_dst_alloc+0x23/0x90 [ 3935.864956][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3935.864956][ T254] ip6_pol_route+0x56f/0x840 [ 3935.864956][ T254] fib6_rule_lookup+0x334/0x630 [ 3935.864956][ T254] ip6_route_output_flags+0x259/0x480 [ 3935.864956][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3935.864956][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3935.864956][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.864956][ T254] netlink_unicast+0x449/0x710 [ 3935.864956][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.864956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.864956][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.864956][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.864956][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.864956][ T254] [ 3935.867119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.867119][ T254] netdev_get_by_index+0x5e/0x80 [ 3935.867119][ T254] fib6_nh_init+0x3d8/0x1580 [ 3935.867119][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3935.867119][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3935.867119][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3935.867119][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3935.867119][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3935.867119][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3935.867119][ T254] addrconf_dad_begin+0x310/0x670 [ 3935.867119][ T254] addrconf_dad_work+0x10b/0xab0 [ 3935.867119][ T254] process_one_work+0x84d/0x18a0 [ 3935.867119][ T254] worker_thread+0x587/0xd30 [ 3935.867119][ T254] kthread+0x28a/0x350 [ 3935.867119][ T254] ret_from_fork+0x31/0x70 [ 3935.867119][ T254] ret_from_fork_asm+0x1a/0x30 [ 3935.867119][ T254] [ 3935.869253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.869253][ T254] netdev_get_by_index+0x5e/0x80 [ 3935.869253][ T254] fib6_nh_init+0x3d8/0x1580 [ 3935.869253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3935.869253][ T254] ip6_route_add+0x1c/0x140 [ 3935.869253][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3935.869253][ T254] inet6_addr_add+0x4f8/0xa40 [ 3935.869253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3935.869253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3935.869253][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.869253][ T254] netlink_unicast+0x449/0x710 [ 3935.869253][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.869253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.869253][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.869253][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.869253][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.869253][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3935.869253][ T254] [ 3935.871543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.871543][ T254] netdev_get_by_index+0x5e/0x80 [ 3935.871543][ T254] fib6_nh_init+0x3d8/0x1580 [ 3935.871543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3935.871543][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3935.871543][ T254] ipv6_add_addr+0x411/0x2000 [ 3935.871543][ T254] inet6_addr_add+0x30e/0xa40 [ 3935.871543][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3935.871543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3935.871543][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.871543][ T254] netlink_unicast+0x449/0x710 [ 3935.871543][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.871543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.871543][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.871543][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.871543][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.871543][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3935.871543][ T254] [ 3935.873730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.873730][ T254] netdev_get_by_index+0x5e/0x80 [ 3935.873730][ T254] fib6_nh_init+0x3d8/0x1580 [ 3935.873730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3935.873730][ T254] ip6_route_add+0x1c/0x140 [ 3935.873730][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3935.873730][ T254] addrconf_add_dev+0xe2/0x170 [ 3935.873730][ T254] inet6_addr_add+0x12f/0xa40 [ 3935.873730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3935.873730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3935.873730][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.873730][ T254] netlink_unicast+0x449/0x710 [ 3935.873730][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.873730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.873730][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.873730][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.873730][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.873730][ T254] [ 3935.875909][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.875909][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3935.875909][ T254] ipv6_find_idev+0x102/0x170 [ 3935.875909][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3935.875909][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3935.875909][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.875909][ T254] netlink_unicast+0x449/0x710 [ 3935.875909][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.875909][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.875909][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.875909][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.875909][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.875909][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3935.875909][ T254] [ 3935.877602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3935.877602][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3935.877602][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3935.877602][ T254] ipv6_find_idev+0x102/0x170 [ 3935.877602][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3935.877602][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3935.877602][ T254] netlink_rcv_skb+0x130/0x360 [ 3935.877602][ T254] netlink_unicast+0x449/0x710 [ 3935.877602][ T254] netlink_sendmsg+0x723/0xbe0 [ 3935.877602][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3935.877602][ T254] ___sys_sendmsg+0xee/0x170 [ 3935.877602][ T254] __sys_sendmsg+0xcd/0x170 [ 3935.877602][ T254] do_syscall_64+0xc6/0x1e0 [ 3935.877602][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3935.877602][ T254] [ 3946.120024][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3946.120776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.120776][ T254] dst_init+0x84/0x4a0 [ 3946.120776][ T254] dst_alloc+0x97/0x150 [ 3946.120776][ T254] ip6_dst_alloc+0x23/0x90 [ 3946.120776][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3946.120776][ T254] ip6_pol_route+0x56f/0x840 [ 3946.120776][ T254] fib6_rule_lookup+0x334/0x630 [ 3946.120776][ T254] ip6_route_output_flags+0x259/0x480 [ 3946.120776][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3946.120776][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3946.120776][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.120776][ T254] netlink_unicast+0x449/0x710 [ 3946.120776][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.120776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.120776][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.120776][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.120776][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.120776][ T254] [ 3946.122920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.122920][ T254] netdev_get_by_index+0x5e/0x80 [ 3946.122920][ T254] fib6_nh_init+0x3d8/0x1580 [ 3946.122920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3946.122920][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3946.122920][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3946.122920][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3946.122920][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3946.122920][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3946.122920][ T254] addrconf_dad_begin+0x310/0x670 [ 3946.122920][ T254] addrconf_dad_work+0x10b/0xab0 [ 3946.122920][ T254] process_one_work+0x84d/0x18a0 [ 3946.122920][ T254] worker_thread+0x587/0xd30 [ 3946.122920][ T254] kthread+0x28a/0x350 [ 3946.122920][ T254] ret_from_fork+0x31/0x70 [ 3946.122920][ T254] ret_from_fork_asm+0x1a/0x30 [ 3946.122920][ T254] [ 3946.125172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.125172][ T254] netdev_get_by_index+0x5e/0x80 [ 3946.125172][ T254] fib6_nh_init+0x3d8/0x1580 [ 3946.125172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3946.125172][ T254] ip6_route_add+0x1c/0x140 [ 3946.125172][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3946.125172][ T254] inet6_addr_add+0x4f8/0xa40 [ 3946.125172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.125172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.125172][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.125172][ T254] netlink_unicast+0x449/0x710 [ 3946.125172][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.125172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.125172][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.125172][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.125172][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.125172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.125172][ T254] [ 3946.127410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.127410][ T254] netdev_get_by_index+0x5e/0x80 [ 3946.127410][ T254] fib6_nh_init+0x3d8/0x1580 [ 3946.127410][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3946.127410][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3946.127410][ T254] ipv6_add_addr+0x411/0x2000 [ 3946.127410][ T254] inet6_addr_add+0x30e/0xa40 [ 3946.127410][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.127410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.127410][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.127410][ T254] netlink_unicast+0x449/0x710 [ 3946.127410][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.127410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.127410][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.127410][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.127410][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.127410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.127410][ T254] [ 3946.129641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.129641][ T254] netdev_get_by_index+0x5e/0x80 [ 3946.129641][ T254] fib6_nh_init+0x3d8/0x1580 [ 3946.129641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3946.129641][ T254] ip6_route_add+0x1c/0x140 [ 3946.129641][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3946.129641][ T254] addrconf_add_dev+0xe2/0x170 [ 3946.129641][ T254] inet6_addr_add+0x12f/0xa40 [ 3946.129641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3946.129641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.129641][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.129641][ T254] netlink_unicast+0x449/0x710 [ 3946.129641][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.129641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.129641][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.129641][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.129641][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.129641][ T254] [ 3946.131783][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.131783][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3946.131783][ T254] ipv6_find_idev+0x102/0x170 [ 3946.131783][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.131783][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.131783][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.131783][ T254] netlink_unicast+0x449/0x710 [ 3946.131783][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.131783][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.131783][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.131783][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.131783][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.131783][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.131783][ T254] [ 3946.133524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3946.133524][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3946.133524][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3946.133524][ T254] ipv6_find_idev+0x102/0x170 [ 3946.133524][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3946.133524][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3946.133524][ T254] netlink_rcv_skb+0x130/0x360 [ 3946.133524][ T254] netlink_unicast+0x449/0x710 [ 3946.133524][ T254] netlink_sendmsg+0x723/0xbe0 [ 3946.133524][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3946.133524][ T254] ___sys_sendmsg+0xee/0x170 [ 3946.133524][ T254] __sys_sendmsg+0xcd/0x170 [ 3946.133524][ T254] do_syscall_64+0xc6/0x1e0 [ 3946.133524][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3946.133524][ T254] [ 3956.375848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3956.376485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.376485][ T254] dst_init+0x84/0x4a0 [ 3956.376485][ T254] dst_alloc+0x97/0x150 [ 3956.376485][ T254] ip6_dst_alloc+0x23/0x90 [ 3956.376485][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3956.376485][ T254] ip6_pol_route+0x56f/0x840 [ 3956.376485][ T254] fib6_rule_lookup+0x334/0x630 [ 3956.376485][ T254] ip6_route_output_flags+0x259/0x480 [ 3956.376485][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3956.376485][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3956.376485][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.376485][ T254] netlink_unicast+0x449/0x710 [ 3956.376485][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.376485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.376485][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.376485][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.376485][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.376485][ T254] [ 3956.379021][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.379021][ T254] netdev_get_by_index+0x5e/0x80 [ 3956.379021][ T254] fib6_nh_init+0x3d8/0x1580 [ 3956.379021][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3956.379021][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3956.379021][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3956.379021][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3956.379021][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3956.379021][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3956.379021][ T254] addrconf_dad_begin+0x310/0x670 [ 3956.379021][ T254] addrconf_dad_work+0x10b/0xab0 [ 3956.379021][ T254] process_one_work+0x84d/0x18a0 [ 3956.379021][ T254] worker_thread+0x587/0xd30 [ 3956.379021][ T254] kthread+0x28a/0x350 [ 3956.379021][ T254] ret_from_fork+0x31/0x70 [ 3956.379021][ T254] ret_from_fork_asm+0x1a/0x30 [ 3956.379021][ T254] [ 3956.381437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.381437][ T254] netdev_get_by_index+0x5e/0x80 [ 3956.381437][ T254] fib6_nh_init+0x3d8/0x1580 [ 3956.381437][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3956.381437][ T254] ip6_route_add+0x1c/0x140 [ 3956.381437][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3956.381437][ T254] inet6_addr_add+0x4f8/0xa40 [ 3956.381437][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3956.381437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3956.381437][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.381437][ T254] netlink_unicast+0x449/0x710 [ 3956.381437][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.381437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.381437][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.381437][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.381437][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.381437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3956.381437][ T254] [ 3956.383925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.383925][ T254] netdev_get_by_index+0x5e/0x80 [ 3956.383925][ T254] fib6_nh_init+0x3d8/0x1580 [ 3956.383925][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3956.383925][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3956.383925][ T254] ipv6_add_addr+0x411/0x2000 [ 3956.383925][ T254] inet6_addr_add+0x30e/0xa40 [ 3956.383925][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3956.383925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3956.383925][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.383925][ T254] netlink_unicast+0x449/0x710 [ 3956.383925][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.383925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.383925][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.383925][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.383925][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.383925][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3956.383925][ T254] [ 3956.386378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.386378][ T254] netdev_get_by_index+0x5e/0x80 [ 3956.386378][ T254] fib6_nh_init+0x3d8/0x1580 [ 3956.386378][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3956.386378][ T254] ip6_route_add+0x1c/0x140 [ 3956.386378][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3956.386378][ T254] addrconf_add_dev+0xe2/0x170 [ 3956.386378][ T254] inet6_addr_add+0x12f/0xa40 [ 3956.386378][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3956.386378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3956.386378][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.386378][ T254] netlink_unicast+0x449/0x710 [ 3956.386378][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.386378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.386378][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.386378][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.386378][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.386378][ T254] [ 3956.388853][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.388853][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3956.388853][ T254] ipv6_find_idev+0x102/0x170 [ 3956.388853][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3956.388853][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3956.388853][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.388853][ T254] netlink_unicast+0x449/0x710 [ 3956.388853][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.388853][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.388853][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.388853][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.388853][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.388853][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3956.388853][ T254] [ 3956.390776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3956.390776][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3956.390776][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3956.390776][ T254] ipv6_find_idev+0x102/0x170 [ 3956.390776][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3956.390776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3956.390776][ T254] netlink_rcv_skb+0x130/0x360 [ 3956.390776][ T254] netlink_unicast+0x449/0x710 [ 3956.390776][ T254] netlink_sendmsg+0x723/0xbe0 [ 3956.390776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3956.390776][ T254] ___sys_sendmsg+0xee/0x170 [ 3956.390776][ T254] __sys_sendmsg+0xcd/0x170 [ 3956.390776][ T254] do_syscall_64+0xc6/0x1e0 [ 3956.390776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3956.390776][ T254] [ 3966.567852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3966.568481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.568481][ T254] dst_init+0x84/0x4a0 [ 3966.568481][ T254] dst_alloc+0x97/0x150 [ 3966.568481][ T254] ip6_dst_alloc+0x23/0x90 [ 3966.568481][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3966.568481][ T254] ip6_pol_route+0x56f/0x840 [ 3966.568481][ T254] fib6_rule_lookup+0x334/0x630 [ 3966.568481][ T254] ip6_route_output_flags+0x259/0x480 [ 3966.568481][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3966.568481][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3966.568481][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.568481][ T254] netlink_unicast+0x449/0x710 [ 3966.568481][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.568481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.568481][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.568481][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.568481][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.568481][ T254] [ 3966.570955][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.570955][ T254] netdev_get_by_index+0x5e/0x80 [ 3966.570955][ T254] fib6_nh_init+0x3d8/0x1580 [ 3966.570955][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3966.570955][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3966.570955][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3966.570955][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3966.570955][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3966.570955][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3966.570955][ T254] addrconf_dad_begin+0x310/0x670 [ 3966.570955][ T254] addrconf_dad_work+0x10b/0xab0 [ 3966.570955][ T254] process_one_work+0x84d/0x18a0 [ 3966.570955][ T254] worker_thread+0x587/0xd30 [ 3966.570955][ T254] kthread+0x28a/0x350 [ 3966.570955][ T254] ret_from_fork+0x31/0x70 [ 3966.570955][ T254] ret_from_fork_asm+0x1a/0x30 [ 3966.570955][ T254] [ 3966.573335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.573335][ T254] netdev_get_by_index+0x5e/0x80 [ 3966.573335][ T254] fib6_nh_init+0x3d8/0x1580 [ 3966.573335][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3966.573335][ T254] ip6_route_add+0x1c/0x140 [ 3966.573335][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3966.573335][ T254] inet6_addr_add+0x4f8/0xa40 [ 3966.573335][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3966.573335][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3966.573335][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.573335][ T254] netlink_unicast+0x449/0x710 [ 3966.573335][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.573335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.573335][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.573335][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.573335][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.573335][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3966.573335][ T254] [ 3966.575864][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.575864][ T254] netdev_get_by_index+0x5e/0x80 [ 3966.575864][ T254] fib6_nh_init+0x3d8/0x1580 [ 3966.575864][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3966.575864][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3966.575864][ T254] ipv6_add_addr+0x411/0x2000 [ 3966.575864][ T254] inet6_addr_add+0x30e/0xa40 [ 3966.575864][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3966.575864][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3966.575864][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.575864][ T254] netlink_unicast+0x449/0x710 [ 3966.575864][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.575864][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.575864][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.575864][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.575864][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.575864][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3966.575864][ T254] [ 3966.578378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.578378][ T254] netdev_get_by_index+0x5e/0x80 [ 3966.578378][ T254] fib6_nh_init+0x3d8/0x1580 [ 3966.578378][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3966.578378][ T254] ip6_route_add+0x1c/0x140 [ 3966.578378][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3966.578378][ T254] addrconf_add_dev+0xe2/0x170 [ 3966.578378][ T254] inet6_addr_add+0x12f/0xa40 [ 3966.578378][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3966.578378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3966.578378][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.578378][ T254] netlink_unicast+0x449/0x710 [ 3966.578378][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.578378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.578378][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.578378][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.578378][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.578378][ T254] [ 3966.580844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.580844][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3966.580844][ T254] ipv6_find_idev+0x102/0x170 [ 3966.580844][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3966.580844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3966.580844][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.580844][ T254] netlink_unicast+0x449/0x710 [ 3966.580844][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.580844][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.580844][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.580844][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.580844][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.580844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3966.580844][ T254] [ 3966.582774][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3966.582774][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3966.582774][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3966.582774][ T254] ipv6_find_idev+0x102/0x170 [ 3966.582774][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3966.582774][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3966.582774][ T254] netlink_rcv_skb+0x130/0x360 [ 3966.582774][ T254] netlink_unicast+0x449/0x710 [ 3966.582774][ T254] netlink_sendmsg+0x723/0xbe0 [ 3966.582774][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3966.582774][ T254] ___sys_sendmsg+0xee/0x170 [ 3966.582774][ T254] __sys_sendmsg+0xcd/0x170 [ 3966.582774][ T254] do_syscall_64+0xc6/0x1e0 [ 3966.582774][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3966.582774][ T254] [ 3976.823844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3976.824470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.824470][ T254] dst_init+0x84/0x4a0 [ 3976.824470][ T254] dst_alloc+0x97/0x150 [ 3976.824470][ T254] ip6_dst_alloc+0x23/0x90 [ 3976.824470][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3976.824470][ T254] ip6_pol_route+0x56f/0x840 [ 3976.824470][ T254] fib6_rule_lookup+0x334/0x630 [ 3976.824470][ T254] ip6_route_output_flags+0x259/0x480 [ 3976.824470][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3976.824470][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3976.824470][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.824470][ T254] netlink_unicast+0x449/0x710 [ 3976.824470][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.824470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.824470][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.824470][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.824470][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.824470][ T254] [ 3976.827004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.827004][ T254] netdev_get_by_index+0x5e/0x80 [ 3976.827004][ T254] fib6_nh_init+0x3d8/0x1580 [ 3976.827004][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3976.827004][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3976.827004][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3976.827004][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3976.827004][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3976.827004][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3976.827004][ T254] addrconf_dad_begin+0x310/0x670 [ 3976.827004][ T254] addrconf_dad_work+0x10b/0xab0 [ 3976.827004][ T254] process_one_work+0x84d/0x18a0 [ 3976.827004][ T254] worker_thread+0x587/0xd30 [ 3976.827004][ T254] kthread+0x28a/0x350 [ 3976.827004][ T254] ret_from_fork+0x31/0x70 [ 3976.827004][ T254] ret_from_fork_asm+0x1a/0x30 [ 3976.827004][ T254] [ 3976.829418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.829418][ T254] netdev_get_by_index+0x5e/0x80 [ 3976.829418][ T254] fib6_nh_init+0x3d8/0x1580 [ 3976.829418][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3976.829418][ T254] ip6_route_add+0x1c/0x140 [ 3976.829418][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3976.829418][ T254] inet6_addr_add+0x4f8/0xa40 [ 3976.829418][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3976.829418][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3976.829418][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.829418][ T254] netlink_unicast+0x449/0x710 [ 3976.829418][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.829418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.829418][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.829418][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.829418][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.829418][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3976.829418][ T254] [ 3976.831926][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.831926][ T254] netdev_get_by_index+0x5e/0x80 [ 3976.831926][ T254] fib6_nh_init+0x3d8/0x1580 [ 3976.831926][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3976.831926][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3976.831926][ T254] ipv6_add_addr+0x411/0x2000 [ 3976.831926][ T254] inet6_addr_add+0x30e/0xa40 [ 3976.831926][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3976.831926][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3976.831926][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.831926][ T254] netlink_unicast+0x449/0x710 [ 3976.831926][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.831926][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.831926][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.831926][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.831926][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.831926][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3976.831926][ T254] [ 3976.834421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.834421][ T254] netdev_get_by_index+0x5e/0x80 [ 3976.834421][ T254] fib6_nh_init+0x3d8/0x1580 [ 3976.834421][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3976.834421][ T254] ip6_route_add+0x1c/0x140 [ 3976.834421][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3976.834421][ T254] addrconf_add_dev+0xe2/0x170 [ 3976.834421][ T254] inet6_addr_add+0x12f/0xa40 [ 3976.834421][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3976.834421][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3976.834421][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.834421][ T254] netlink_unicast+0x449/0x710 [ 3976.834421][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.834421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.834421][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.834421][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.834421][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.834421][ T254] [ 3976.836863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.836863][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3976.836863][ T254] ipv6_find_idev+0x102/0x170 [ 3976.836863][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3976.836863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3976.836863][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.836863][ T254] netlink_unicast+0x449/0x710 [ 3976.836863][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.836863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.836863][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.836863][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.836863][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.836863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3976.836863][ T254] [ 3976.838765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3976.838765][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3976.838765][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3976.838765][ T254] ipv6_find_idev+0x102/0x170 [ 3976.838765][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3976.838765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3976.838765][ T254] netlink_rcv_skb+0x130/0x360 [ 3976.838765][ T254] netlink_unicast+0x449/0x710 [ 3976.838765][ T254] netlink_sendmsg+0x723/0xbe0 [ 3976.838765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3976.838765][ T254] ___sys_sendmsg+0xee/0x170 [ 3976.838765][ T254] __sys_sendmsg+0xcd/0x170 [ 3976.838765][ T254] do_syscall_64+0xc6/0x1e0 [ 3976.838765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3976.838765][ T254] [ 3987.079855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3987.080468][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.080468][ T254] dst_init+0x84/0x4a0 [ 3987.080468][ T254] dst_alloc+0x97/0x150 [ 3987.080468][ T254] ip6_dst_alloc+0x23/0x90 [ 3987.080468][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3987.080468][ T254] ip6_pol_route+0x56f/0x840 [ 3987.080468][ T254] fib6_rule_lookup+0x334/0x630 [ 3987.080468][ T254] ip6_route_output_flags+0x259/0x480 [ 3987.080468][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3987.080468][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3987.080468][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.080468][ T254] netlink_unicast+0x449/0x710 [ 3987.080468][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.080468][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.080468][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.080468][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.080468][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.080468][ T254] [ 3987.082885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.082885][ T254] netdev_get_by_index+0x5e/0x80 [ 3987.082885][ T254] fib6_nh_init+0x3d8/0x1580 [ 3987.082885][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3987.082885][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3987.082885][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3987.082885][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3987.082885][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3987.082885][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3987.082885][ T254] addrconf_dad_begin+0x310/0x670 [ 3987.082885][ T254] addrconf_dad_work+0x10b/0xab0 [ 3987.082885][ T254] process_one_work+0x84d/0x18a0 [ 3987.082885][ T254] worker_thread+0x587/0xd30 [ 3987.082885][ T254] kthread+0x28a/0x350 [ 3987.082885][ T254] ret_from_fork+0x31/0x70 [ 3987.082885][ T254] ret_from_fork_asm+0x1a/0x30 [ 3987.082885][ T254] [ 3987.085265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.085265][ T254] netdev_get_by_index+0x5e/0x80 [ 3987.085265][ T254] fib6_nh_init+0x3d8/0x1580 [ 3987.085265][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3987.085265][ T254] ip6_route_add+0x1c/0x140 [ 3987.085265][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3987.085265][ T254] inet6_addr_add+0x4f8/0xa40 [ 3987.085265][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.085265][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.085265][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.085265][ T254] netlink_unicast+0x449/0x710 [ 3987.085265][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.085265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.085265][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.085265][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.085265][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.085265][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.085265][ T254] [ 3987.087808][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.087808][ T254] netdev_get_by_index+0x5e/0x80 [ 3987.087808][ T254] fib6_nh_init+0x3d8/0x1580 [ 3987.087808][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3987.087808][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3987.087808][ T254] ipv6_add_addr+0x411/0x2000 [ 3987.087808][ T254] inet6_addr_add+0x30e/0xa40 [ 3987.087808][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.087808][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.087808][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.087808][ T254] netlink_unicast+0x449/0x710 [ 3987.087808][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.087808][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.087808][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.087808][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.087808][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.087808][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.087808][ T254] [ 3987.090324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.090324][ T254] netdev_get_by_index+0x5e/0x80 [ 3987.090324][ T254] fib6_nh_init+0x3d8/0x1580 [ 3987.090324][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3987.090324][ T254] ip6_route_add+0x1c/0x140 [ 3987.090324][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3987.090324][ T254] addrconf_add_dev+0xe2/0x170 [ 3987.090324][ T254] inet6_addr_add+0x12f/0xa40 [ 3987.090324][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3987.090324][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.090324][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.090324][ T254] netlink_unicast+0x449/0x710 [ 3987.090324][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.090324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.090324][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.090324][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.090324][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.090324][ T254] [ 3987.092747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.092747][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3987.092747][ T254] ipv6_find_idev+0x102/0x170 [ 3987.092747][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.092747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.092747][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.092747][ T254] netlink_unicast+0x449/0x710 [ 3987.092747][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.092747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.092747][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.092747][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.092747][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.092747][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.092747][ T254] [ 3987.094650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3987.094650][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3987.094650][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3987.094650][ T254] ipv6_find_idev+0x102/0x170 [ 3987.094650][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3987.094650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3987.094650][ T254] netlink_rcv_skb+0x130/0x360 [ 3987.094650][ T254] netlink_unicast+0x449/0x710 [ 3987.094650][ T254] netlink_sendmsg+0x723/0xbe0 [ 3987.094650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3987.094650][ T254] ___sys_sendmsg+0xee/0x170 [ 3987.094650][ T254] __sys_sendmsg+0xcd/0x170 [ 3987.094650][ T254] do_syscall_64+0xc6/0x1e0 [ 3987.094650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3987.094650][ T254] [ 3997.335848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 3997.336471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.336471][ T254] dst_init+0x84/0x4a0 [ 3997.336471][ T254] dst_alloc+0x97/0x150 [ 3997.336471][ T254] ip6_dst_alloc+0x23/0x90 [ 3997.336471][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 3997.336471][ T254] ip6_pol_route+0x56f/0x840 [ 3997.336471][ T254] fib6_rule_lookup+0x334/0x630 [ 3997.336471][ T254] ip6_route_output_flags+0x259/0x480 [ 3997.336471][ T254] inet6_rtm_getroute+0x980/0xf70 [ 3997.336471][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 3997.336471][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.336471][ T254] netlink_unicast+0x449/0x710 [ 3997.336471][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.336471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.336471][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.336471][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.336471][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.336471][ T254] [ 3997.339041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.339041][ T254] netdev_get_by_index+0x5e/0x80 [ 3997.339041][ T254] fib6_nh_init+0x3d8/0x1580 [ 3997.339041][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3997.339041][ T254] addrconf_f6i_alloc+0x265/0x560 [ 3997.339041][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 3997.339041][ T254] addrconf_join_anycast+0x1c0/0x220 [ 3997.339041][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 3997.339041][ T254] addrconf_dad_completed+0x12b/0xe20 [ 3997.339041][ T254] addrconf_dad_begin+0x310/0x670 [ 3997.339041][ T254] addrconf_dad_work+0x10b/0xab0 [ 3997.339041][ T254] process_one_work+0x84d/0x18a0 [ 3997.339041][ T254] worker_thread+0x587/0xd30 [ 3997.339041][ T254] kthread+0x28a/0x350 [ 3997.339041][ T254] ret_from_fork+0x31/0x70 [ 3997.339041][ T254] ret_from_fork_asm+0x1a/0x30 [ 3997.339041][ T254] [ 3997.341421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.341421][ T254] netdev_get_by_index+0x5e/0x80 [ 3997.341421][ T254] fib6_nh_init+0x3d8/0x1580 [ 3997.341421][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3997.341421][ T254] ip6_route_add+0x1c/0x140 [ 3997.341421][ T254] addrconf_prefix_route+0x2a6/0x430 [ 3997.341421][ T254] inet6_addr_add+0x4f8/0xa40 [ 3997.341421][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3997.341421][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3997.341421][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.341421][ T254] netlink_unicast+0x449/0x710 [ 3997.341421][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.341421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.341421][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.341421][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.341421][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.341421][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3997.341421][ T254] [ 3997.344442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.344442][ T254] netdev_get_by_index+0x5e/0x80 [ 3997.344442][ T254] fib6_nh_init+0x3d8/0x1580 [ 3997.344442][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3997.344442][ T254] addrconf_f6i_alloc+0x315/0x560 [ 3997.344442][ T254] ipv6_add_addr+0x411/0x2000 [ 3997.344442][ T254] inet6_addr_add+0x30e/0xa40 [ 3997.344442][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3997.344442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3997.344442][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.344442][ T254] netlink_unicast+0x449/0x710 [ 3997.344442][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.344442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.344442][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.344442][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.344442][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.344442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3997.344442][ T254] [ 3997.346923][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.346923][ T254] netdev_get_by_index+0x5e/0x80 [ 3997.346923][ T254] fib6_nh_init+0x3d8/0x1580 [ 3997.346923][ T254] ip6_route_info_create+0xf18/0x17d0 [ 3997.346923][ T254] ip6_route_add+0x1c/0x140 [ 3997.346923][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 3997.346923][ T254] addrconf_add_dev+0xe2/0x170 [ 3997.346923][ T254] inet6_addr_add+0x12f/0xa40 [ 3997.346923][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 3997.346923][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3997.346923][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.346923][ T254] netlink_unicast+0x449/0x710 [ 3997.346923][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.346923][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.346923][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.346923][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.346923][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.346923][ T254] [ 3997.349339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.349339][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 3997.349339][ T254] ipv6_find_idev+0x102/0x170 [ 3997.349339][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3997.349339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3997.349339][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.349339][ T254] netlink_unicast+0x449/0x710 [ 3997.349339][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.349339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.349339][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.349339][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.349339][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.349339][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3997.349339][ T254] [ 3997.351254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 3997.351254][ T254] neigh_parms_alloc+0x1e5/0x510 [ 3997.351254][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 3997.351254][ T254] ipv6_find_idev+0x102/0x170 [ 3997.351254][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 3997.351254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 3997.351254][ T254] netlink_rcv_skb+0x130/0x360 [ 3997.351254][ T254] netlink_unicast+0x449/0x710 [ 3997.351254][ T254] netlink_sendmsg+0x723/0xbe0 [ 3997.351254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 3997.351254][ T254] ___sys_sendmsg+0xee/0x170 [ 3997.351254][ T254] __sys_sendmsg+0xcd/0x170 [ 3997.351254][ T254] do_syscall_64+0xc6/0x1e0 [ 3997.351254][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 3997.351254][ T254] [ 4007.591851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4007.592465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.592465][ T254] dst_init+0x84/0x4a0 [ 4007.592465][ T254] dst_alloc+0x97/0x150 [ 4007.592465][ T254] ip6_dst_alloc+0x23/0x90 [ 4007.592465][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4007.592465][ T254] ip6_pol_route+0x56f/0x840 [ 4007.592465][ T254] fib6_rule_lookup+0x334/0x630 [ 4007.592465][ T254] ip6_route_output_flags+0x259/0x480 [ 4007.592465][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4007.592465][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4007.592465][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.592465][ T254] netlink_unicast+0x449/0x710 [ 4007.592465][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.592465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.592465][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.592465][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.592465][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.592465][ T254] [ 4007.595039][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.595039][ T254] netdev_get_by_index+0x5e/0x80 [ 4007.595039][ T254] fib6_nh_init+0x3d8/0x1580 [ 4007.595039][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4007.595039][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4007.595039][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4007.595039][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4007.595039][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4007.595039][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4007.595039][ T254] addrconf_dad_begin+0x310/0x670 [ 4007.595039][ T254] addrconf_dad_work+0x10b/0xab0 [ 4007.595039][ T254] process_one_work+0x84d/0x18a0 [ 4007.595039][ T254] worker_thread+0x587/0xd30 [ 4007.595039][ T254] kthread+0x28a/0x350 [ 4007.595039][ T254] ret_from_fork+0x31/0x70 [ 4007.595039][ T254] ret_from_fork_asm+0x1a/0x30 [ 4007.595039][ T254] [ 4007.597424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.597424][ T254] netdev_get_by_index+0x5e/0x80 [ 4007.597424][ T254] fib6_nh_init+0x3d8/0x1580 [ 4007.597424][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4007.597424][ T254] ip6_route_add+0x1c/0x140 [ 4007.597424][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4007.597424][ T254] inet6_addr_add+0x4f8/0xa40 [ 4007.597424][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4007.597424][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4007.597424][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.597424][ T254] netlink_unicast+0x449/0x710 [ 4007.597424][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.597424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.597424][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.597424][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.597424][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.597424][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4007.597424][ T254] [ 4007.599942][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.599942][ T254] netdev_get_by_index+0x5e/0x80 [ 4007.599942][ T254] fib6_nh_init+0x3d8/0x1580 [ 4007.599942][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4007.599942][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4007.599942][ T254] ipv6_add_addr+0x411/0x2000 [ 4007.599942][ T254] inet6_addr_add+0x30e/0xa40 [ 4007.599942][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4007.599942][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4007.599942][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.599942][ T254] netlink_unicast+0x449/0x710 [ 4007.599942][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.599942][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.599942][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.599942][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.599942][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.599942][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4007.599942][ T254] [ 4007.602820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.602820][ T254] netdev_get_by_index+0x5e/0x80 [ 4007.602820][ T254] fib6_nh_init+0x3d8/0x1580 [ 4007.602820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4007.602820][ T254] ip6_route_add+0x1c/0x140 [ 4007.602820][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4007.602820][ T254] addrconf_add_dev+0xe2/0x170 [ 4007.602820][ T254] inet6_addr_add+0x12f/0xa40 [ 4007.602820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4007.602820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4007.602820][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.602820][ T254] netlink_unicast+0x449/0x710 [ 4007.602820][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.602820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.602820][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.602820][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.602820][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.602820][ T254] [ 4007.605277][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.605277][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4007.605277][ T254] ipv6_find_idev+0x102/0x170 [ 4007.605277][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4007.605277][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4007.605277][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.605277][ T254] netlink_unicast+0x449/0x710 [ 4007.605277][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.605277][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.605277][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.605277][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.605277][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.605277][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4007.605277][ T254] [ 4007.607176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4007.607176][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4007.607176][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4007.607176][ T254] ipv6_find_idev+0x102/0x170 [ 4007.607176][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4007.607176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4007.607176][ T254] netlink_rcv_skb+0x130/0x360 [ 4007.607176][ T254] netlink_unicast+0x449/0x710 [ 4007.607176][ T254] netlink_sendmsg+0x723/0xbe0 [ 4007.607176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4007.607176][ T254] ___sys_sendmsg+0xee/0x170 [ 4007.607176][ T254] __sys_sendmsg+0xcd/0x170 [ 4007.607176][ T254] do_syscall_64+0xc6/0x1e0 [ 4007.607176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4007.607176][ T254] [ 4017.847844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4017.848476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.848476][ T254] dst_init+0x84/0x4a0 [ 4017.848476][ T254] dst_alloc+0x97/0x150 [ 4017.848476][ T254] ip6_dst_alloc+0x23/0x90 [ 4017.848476][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4017.848476][ T254] ip6_pol_route+0x56f/0x840 [ 4017.848476][ T254] fib6_rule_lookup+0x334/0x630 [ 4017.848476][ T254] ip6_route_output_flags+0x259/0x480 [ 4017.848476][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4017.848476][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4017.848476][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.848476][ T254] netlink_unicast+0x449/0x710 [ 4017.848476][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.848476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.848476][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.848476][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.848476][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.848476][ T254] [ 4017.850962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.850962][ T254] netdev_get_by_index+0x5e/0x80 [ 4017.850962][ T254] fib6_nh_init+0x3d8/0x1580 [ 4017.850962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4017.850962][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4017.850962][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4017.850962][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4017.850962][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4017.850962][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4017.850962][ T254] addrconf_dad_begin+0x310/0x670 [ 4017.850962][ T254] addrconf_dad_work+0x10b/0xab0 [ 4017.850962][ T254] process_one_work+0x84d/0x18a0 [ 4017.850962][ T254] worker_thread+0x587/0xd30 [ 4017.850962][ T254] kthread+0x28a/0x350 [ 4017.850962][ T254] ret_from_fork+0x31/0x70 [ 4017.850962][ T254] ret_from_fork_asm+0x1a/0x30 [ 4017.850962][ T254] [ 4017.853367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.853367][ T254] netdev_get_by_index+0x5e/0x80 [ 4017.853367][ T254] fib6_nh_init+0x3d8/0x1580 [ 4017.853367][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4017.853367][ T254] ip6_route_add+0x1c/0x140 [ 4017.853367][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4017.853367][ T254] inet6_addr_add+0x4f8/0xa40 [ 4017.853367][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4017.853367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4017.853367][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.853367][ T254] netlink_unicast+0x449/0x710 [ 4017.853367][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.853367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.853367][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.853367][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.853367][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.853367][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4017.853367][ T254] [ 4017.855862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.855862][ T254] netdev_get_by_index+0x5e/0x80 [ 4017.855862][ T254] fib6_nh_init+0x3d8/0x1580 [ 4017.855862][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4017.855862][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4017.855862][ T254] ipv6_add_addr+0x411/0x2000 [ 4017.855862][ T254] inet6_addr_add+0x30e/0xa40 [ 4017.855862][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4017.855862][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4017.855862][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.855862][ T254] netlink_unicast+0x449/0x710 [ 4017.855862][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.855862][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.855862][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.855862][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.855862][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.855862][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4017.855862][ T254] [ 4017.858381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.858381][ T254] netdev_get_by_index+0x5e/0x80 [ 4017.858381][ T254] fib6_nh_init+0x3d8/0x1580 [ 4017.858381][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4017.858381][ T254] ip6_route_add+0x1c/0x140 [ 4017.858381][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4017.858381][ T254] addrconf_add_dev+0xe2/0x170 [ 4017.858381][ T254] inet6_addr_add+0x12f/0xa40 [ 4017.858381][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4017.858381][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4017.858381][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.858381][ T254] netlink_unicast+0x449/0x710 [ 4017.858381][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.858381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.858381][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.858381][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.858381][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.858381][ T254] [ 4017.860861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.860861][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4017.860861][ T254] ipv6_find_idev+0x102/0x170 [ 4017.860861][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4017.860861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4017.860861][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.860861][ T254] netlink_unicast+0x449/0x710 [ 4017.860861][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.860861][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.860861][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.860861][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.860861][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.860861][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4017.860861][ T254] [ 4017.862793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4017.862793][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4017.862793][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4017.862793][ T254] ipv6_find_idev+0x102/0x170 [ 4017.862793][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4017.862793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4017.862793][ T254] netlink_rcv_skb+0x130/0x360 [ 4017.862793][ T254] netlink_unicast+0x449/0x710 [ 4017.862793][ T254] netlink_sendmsg+0x723/0xbe0 [ 4017.862793][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4017.862793][ T254] ___sys_sendmsg+0xee/0x170 [ 4017.862793][ T254] __sys_sendmsg+0xcd/0x170 [ 4017.862793][ T254] do_syscall_64+0xc6/0x1e0 [ 4017.862793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4017.862793][ T254] [ 4027.943847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4027.944296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.944296][ T254] dst_init+0x84/0x4a0 [ 4027.944296][ T254] dst_alloc+0x97/0x150 [ 4027.944296][ T254] ip6_dst_alloc+0x23/0x90 [ 4027.944296][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4027.944296][ T254] ip6_pol_route+0x56f/0x840 [ 4027.944296][ T254] fib6_rule_lookup+0x334/0x630 [ 4027.944296][ T254] ip6_route_output_flags+0x259/0x480 [ 4027.944296][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4027.944296][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4027.944296][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.944296][ T254] netlink_unicast+0x449/0x710 [ 4027.944296][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.944296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.944296][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.944296][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.944296][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.944296][ T254] [ 4027.946739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.946739][ T254] netdev_get_by_index+0x5e/0x80 [ 4027.946739][ T254] fib6_nh_init+0x3d8/0x1580 [ 4027.946739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4027.946739][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4027.946739][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4027.946739][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4027.946739][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4027.946739][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4027.946739][ T254] addrconf_dad_begin+0x310/0x670 [ 4027.946739][ T254] addrconf_dad_work+0x10b/0xab0 [ 4027.946739][ T254] process_one_work+0x84d/0x18a0 [ 4027.946739][ T254] worker_thread+0x587/0xd30 [ 4027.946739][ T254] kthread+0x28a/0x350 [ 4027.946739][ T254] ret_from_fork+0x31/0x70 [ 4027.946739][ T254] ret_from_fork_asm+0x1a/0x30 [ 4027.946739][ T254] [ 4027.949167][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.949167][ T254] netdev_get_by_index+0x5e/0x80 [ 4027.949167][ T254] fib6_nh_init+0x3d8/0x1580 [ 4027.949167][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4027.949167][ T254] ip6_route_add+0x1c/0x140 [ 4027.949167][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4027.949167][ T254] inet6_addr_add+0x4f8/0xa40 [ 4027.949167][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4027.949167][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4027.949167][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.949167][ T254] netlink_unicast+0x449/0x710 [ 4027.949167][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.949167][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.949167][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.949167][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.949167][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.949167][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4027.949167][ T254] [ 4027.951653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.951653][ T254] netdev_get_by_index+0x5e/0x80 [ 4027.951653][ T254] fib6_nh_init+0x3d8/0x1580 [ 4027.951653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4027.951653][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4027.951653][ T254] ipv6_add_addr+0x411/0x2000 [ 4027.951653][ T254] inet6_addr_add+0x30e/0xa40 [ 4027.951653][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4027.951653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4027.951653][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.951653][ T254] netlink_unicast+0x449/0x710 [ 4027.951653][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.951653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.951653][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.951653][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.951653][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.951653][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4027.951653][ T254] [ 4027.954155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.954155][ T254] netdev_get_by_index+0x5e/0x80 [ 4027.954155][ T254] fib6_nh_init+0x3d8/0x1580 [ 4027.954155][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4027.954155][ T254] ip6_route_add+0x1c/0x140 [ 4027.954155][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4027.954155][ T254] addrconf_add_dev+0xe2/0x170 [ 4027.954155][ T254] inet6_addr_add+0x12f/0xa40 [ 4027.954155][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4027.954155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4027.954155][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.954155][ T254] netlink_unicast+0x449/0x710 [ 4027.954155][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.954155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.954155][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.954155][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.954155][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.954155][ T254] [ 4027.956610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.956610][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4027.956610][ T254] ipv6_find_idev+0x102/0x170 [ 4027.956610][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4027.956610][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4027.956610][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.956610][ T254] netlink_unicast+0x449/0x710 [ 4027.956610][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.956610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.956610][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.956610][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.956610][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.956610][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4027.956610][ T254] [ 4027.958538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4027.958538][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4027.958538][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4027.958538][ T254] ipv6_find_idev+0x102/0x170 [ 4027.958538][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4027.958538][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4027.958538][ T254] netlink_rcv_skb+0x130/0x360 [ 4027.958538][ T254] netlink_unicast+0x449/0x710 [ 4027.958538][ T254] netlink_sendmsg+0x723/0xbe0 [ 4027.958538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4027.958538][ T254] ___sys_sendmsg+0xee/0x170 [ 4027.958538][ T254] __sys_sendmsg+0xcd/0x170 [ 4027.958538][ T254] do_syscall_64+0xc6/0x1e0 [ 4027.958538][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4027.958538][ T254] [ 4038.039847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4038.040291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.040291][ T254] dst_init+0x84/0x4a0 [ 4038.040291][ T254] dst_alloc+0x97/0x150 [ 4038.040291][ T254] ip6_dst_alloc+0x23/0x90 [ 4038.040291][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4038.040291][ T254] ip6_pol_route+0x56f/0x840 [ 4038.040291][ T254] fib6_rule_lookup+0x334/0x630 [ 4038.040291][ T254] ip6_route_output_flags+0x259/0x480 [ 4038.040291][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4038.040291][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4038.040291][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.040291][ T254] netlink_unicast+0x449/0x710 [ 4038.040291][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.040291][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.040291][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.040291][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.040291][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.040291][ T254] [ 4038.042726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.042726][ T254] netdev_get_by_index+0x5e/0x80 [ 4038.042726][ T254] fib6_nh_init+0x3d8/0x1580 [ 4038.042726][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4038.042726][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4038.042726][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4038.042726][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4038.042726][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4038.042726][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4038.042726][ T254] addrconf_dad_begin+0x310/0x670 [ 4038.042726][ T254] addrconf_dad_work+0x10b/0xab0 [ 4038.042726][ T254] process_one_work+0x84d/0x18a0 [ 4038.042726][ T254] worker_thread+0x587/0xd30 [ 4038.042726][ T254] kthread+0x28a/0x350 [ 4038.042726][ T254] ret_from_fork+0x31/0x70 [ 4038.042726][ T254] ret_from_fork_asm+0x1a/0x30 [ 4038.042726][ T254] [ 4038.045116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.045116][ T254] netdev_get_by_index+0x5e/0x80 [ 4038.045116][ T254] fib6_nh_init+0x3d8/0x1580 [ 4038.045116][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4038.045116][ T254] ip6_route_add+0x1c/0x140 [ 4038.045116][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4038.045116][ T254] inet6_addr_add+0x4f8/0xa40 [ 4038.045116][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.045116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.045116][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.045116][ T254] netlink_unicast+0x449/0x710 [ 4038.045116][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.045116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.045116][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.045116][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.045116][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.045116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.045116][ T254] [ 4038.047632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.047632][ T254] netdev_get_by_index+0x5e/0x80 [ 4038.047632][ T254] fib6_nh_init+0x3d8/0x1580 [ 4038.047632][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4038.047632][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4038.047632][ T254] ipv6_add_addr+0x411/0x2000 [ 4038.047632][ T254] inet6_addr_add+0x30e/0xa40 [ 4038.047632][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.047632][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.047632][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.047632][ T254] netlink_unicast+0x449/0x710 [ 4038.047632][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.047632][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.047632][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.047632][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.047632][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.047632][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.047632][ T254] [ 4038.050134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.050134][ T254] netdev_get_by_index+0x5e/0x80 [ 4038.050134][ T254] fib6_nh_init+0x3d8/0x1580 [ 4038.050134][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4038.050134][ T254] ip6_route_add+0x1c/0x140 [ 4038.050134][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4038.050134][ T254] addrconf_add_dev+0xe2/0x170 [ 4038.050134][ T254] inet6_addr_add+0x12f/0xa40 [ 4038.050134][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4038.050134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.050134][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.050134][ T254] netlink_unicast+0x449/0x710 [ 4038.050134][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.050134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.050134][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.050134][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.050134][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.050134][ T254] [ 4038.052606][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.052606][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4038.052606][ T254] ipv6_find_idev+0x102/0x170 [ 4038.052606][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.052606][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.052606][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.052606][ T254] netlink_unicast+0x449/0x710 [ 4038.052606][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.052606][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.052606][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.052606][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.052606][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.052606][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.052606][ T254] [ 4038.054537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4038.054537][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4038.054537][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4038.054537][ T254] ipv6_find_idev+0x102/0x170 [ 4038.054537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4038.054537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4038.054537][ T254] netlink_rcv_skb+0x130/0x360 [ 4038.054537][ T254] netlink_unicast+0x449/0x710 [ 4038.054537][ T254] netlink_sendmsg+0x723/0xbe0 [ 4038.054537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4038.054537][ T254] ___sys_sendmsg+0xee/0x170 [ 4038.054537][ T254] __sys_sendmsg+0xcd/0x170 [ 4038.054537][ T254] do_syscall_64+0xc6/0x1e0 [ 4038.054537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4038.054537][ T254] [ 4048.287843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4048.288387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.288387][ T254] dst_init+0x84/0x4a0 [ 4048.288387][ T254] dst_alloc+0x97/0x150 [ 4048.288387][ T254] ip6_dst_alloc+0x23/0x90 [ 4048.288387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4048.288387][ T254] ip6_pol_route+0x56f/0x840 [ 4048.288387][ T254] fib6_rule_lookup+0x334/0x630 [ 4048.288387][ T254] ip6_route_output_flags+0x259/0x480 [ 4048.288387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4048.288387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4048.288387][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.288387][ T254] netlink_unicast+0x449/0x710 [ 4048.288387][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.288387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.288387][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.288387][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.288387][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.288387][ T254] [ 4048.290604][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.290604][ T254] netdev_get_by_index+0x5e/0x80 [ 4048.290604][ T254] fib6_nh_init+0x3d8/0x1580 [ 4048.290604][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4048.290604][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4048.290604][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4048.290604][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4048.290604][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4048.290604][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4048.290604][ T254] addrconf_dad_begin+0x310/0x670 [ 4048.290604][ T254] addrconf_dad_work+0x10b/0xab0 [ 4048.290604][ T254] process_one_work+0x84d/0x18a0 [ 4048.290604][ T254] worker_thread+0x587/0xd30 [ 4048.290604][ T254] kthread+0x28a/0x350 [ 4048.290604][ T254] ret_from_fork+0x31/0x70 [ 4048.290604][ T254] ret_from_fork_asm+0x1a/0x30 [ 4048.290604][ T254] [ 4048.292781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.292781][ T254] netdev_get_by_index+0x5e/0x80 [ 4048.292781][ T254] fib6_nh_init+0x3d8/0x1580 [ 4048.292781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4048.292781][ T254] ip6_route_add+0x1c/0x140 [ 4048.292781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4048.292781][ T254] inet6_addr_add+0x4f8/0xa40 [ 4048.292781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4048.292781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4048.292781][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.292781][ T254] netlink_unicast+0x449/0x710 [ 4048.292781][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.292781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.292781][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.292781][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.292781][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.292781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4048.292781][ T254] [ 4048.295033][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.295033][ T254] netdev_get_by_index+0x5e/0x80 [ 4048.295033][ T254] fib6_nh_init+0x3d8/0x1580 [ 4048.295033][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4048.295033][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4048.295033][ T254] ipv6_add_addr+0x411/0x2000 [ 4048.295033][ T254] inet6_addr_add+0x30e/0xa40 [ 4048.295033][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4048.295033][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4048.295033][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.295033][ T254] netlink_unicast+0x449/0x710 [ 4048.295033][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.295033][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.295033][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.295033][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.295033][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.295033][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4048.295033][ T254] [ 4048.297294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.297294][ T254] netdev_get_by_index+0x5e/0x80 [ 4048.297294][ T254] fib6_nh_init+0x3d8/0x1580 [ 4048.297294][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4048.297294][ T254] ip6_route_add+0x1c/0x140 [ 4048.297294][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4048.297294][ T254] addrconf_add_dev+0xe2/0x170 [ 4048.297294][ T254] inet6_addr_add+0x12f/0xa40 [ 4048.297294][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4048.297294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4048.297294][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.297294][ T254] netlink_unicast+0x449/0x710 [ 4048.297294][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.297294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.297294][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.297294][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.297294][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.297294][ T254] [ 4048.299521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.299521][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4048.299521][ T254] ipv6_find_idev+0x102/0x170 [ 4048.299521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4048.299521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4048.299521][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.299521][ T254] netlink_unicast+0x449/0x710 [ 4048.299521][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.299521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.299521][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.299521][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.299521][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.299521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4048.299521][ T254] [ 4048.301257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4048.301257][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4048.301257][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4048.301257][ T254] ipv6_find_idev+0x102/0x170 [ 4048.301257][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4048.301257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4048.301257][ T254] netlink_rcv_skb+0x130/0x360 [ 4048.301257][ T254] netlink_unicast+0x449/0x710 [ 4048.301257][ T254] netlink_sendmsg+0x723/0xbe0 [ 4048.301257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4048.301257][ T254] ___sys_sendmsg+0xee/0x170 [ 4048.301257][ T254] __sys_sendmsg+0xcd/0x170 [ 4048.301257][ T254] do_syscall_64+0xc6/0x1e0 [ 4048.301257][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4048.301257][ T254] [ 4058.447891][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4058.448471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.448471][ T254] dst_init+0x84/0x4a0 [ 4058.448471][ T254] dst_alloc+0x97/0x150 [ 4058.448471][ T254] ip6_dst_alloc+0x23/0x90 [ 4058.448471][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4058.448471][ T254] ip6_pol_route+0x56f/0x840 [ 4058.448471][ T254] fib6_rule_lookup+0x334/0x630 [ 4058.448471][ T254] ip6_route_output_flags+0x259/0x480 [ 4058.448471][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4058.448471][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4058.448471][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.448471][ T254] netlink_unicast+0x449/0x710 [ 4058.448471][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.448471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.448471][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.448471][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.448471][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.448471][ T254] [ 4058.450680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.450680][ T254] netdev_get_by_index+0x5e/0x80 [ 4058.450680][ T254] fib6_nh_init+0x3d8/0x1580 [ 4058.450680][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4058.450680][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4058.450680][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4058.450680][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4058.450680][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4058.450680][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4058.450680][ T254] addrconf_dad_begin+0x310/0x670 [ 4058.450680][ T254] addrconf_dad_work+0x10b/0xab0 [ 4058.450680][ T254] process_one_work+0x84d/0x18a0 [ 4058.450680][ T254] worker_thread+0x587/0xd30 [ 4058.450680][ T254] kthread+0x28a/0x350 [ 4058.450680][ T254] ret_from_fork+0x31/0x70 [ 4058.450680][ T254] ret_from_fork_asm+0x1a/0x30 [ 4058.450680][ T254] [ 4058.452831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.452831][ T254] netdev_get_by_index+0x5e/0x80 [ 4058.452831][ T254] fib6_nh_init+0x3d8/0x1580 [ 4058.452831][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4058.452831][ T254] ip6_route_add+0x1c/0x140 [ 4058.452831][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4058.452831][ T254] inet6_addr_add+0x4f8/0xa40 [ 4058.452831][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4058.452831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4058.452831][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.452831][ T254] netlink_unicast+0x449/0x710 [ 4058.452831][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.452831][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.452831][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.452831][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.452831][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.452831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4058.452831][ T254] [ 4058.455067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.455067][ T254] netdev_get_by_index+0x5e/0x80 [ 4058.455067][ T254] fib6_nh_init+0x3d8/0x1580 [ 4058.455067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4058.455067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4058.455067][ T254] ipv6_add_addr+0x411/0x2000 [ 4058.455067][ T254] inet6_addr_add+0x30e/0xa40 [ 4058.455067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4058.455067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4058.455067][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.455067][ T254] netlink_unicast+0x449/0x710 [ 4058.455067][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.455067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.455067][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.455067][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.455067][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.455067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4058.455067][ T254] [ 4058.457311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.457311][ T254] netdev_get_by_index+0x5e/0x80 [ 4058.457311][ T254] fib6_nh_init+0x3d8/0x1580 [ 4058.457311][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4058.457311][ T254] ip6_route_add+0x1c/0x140 [ 4058.457311][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4058.457311][ T254] addrconf_add_dev+0xe2/0x170 [ 4058.457311][ T254] inet6_addr_add+0x12f/0xa40 [ 4058.457311][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4058.457311][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4058.457311][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.457311][ T254] netlink_unicast+0x449/0x710 [ 4058.457311][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.457311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.457311][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.457311][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.457311][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.457311][ T254] [ 4058.459545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.459545][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4058.459545][ T254] ipv6_find_idev+0x102/0x170 [ 4058.459545][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4058.459545][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4058.459545][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.459545][ T254] netlink_unicast+0x449/0x710 [ 4058.459545][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.459545][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.459545][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.459545][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.459545][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.459545][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4058.459545][ T254] [ 4058.461269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4058.461269][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4058.461269][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4058.461269][ T254] ipv6_find_idev+0x102/0x170 [ 4058.461269][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4058.461269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4058.461269][ T254] netlink_rcv_skb+0x130/0x360 [ 4058.461269][ T254] netlink_unicast+0x449/0x710 [ 4058.461269][ T254] netlink_sendmsg+0x723/0xbe0 [ 4058.461269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4058.461269][ T254] ___sys_sendmsg+0xee/0x170 [ 4058.461269][ T254] __sys_sendmsg+0xcd/0x170 [ 4058.461269][ T254] do_syscall_64+0xc6/0x1e0 [ 4058.461269][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4058.461269][ T254] [ 4068.703882][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4068.704423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.704423][ T254] dst_init+0x84/0x4a0 [ 4068.704423][ T254] dst_alloc+0x97/0x150 [ 4068.704423][ T254] ip6_dst_alloc+0x23/0x90 [ 4068.704423][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4068.704423][ T254] ip6_pol_route+0x56f/0x840 [ 4068.704423][ T254] fib6_rule_lookup+0x334/0x630 [ 4068.704423][ T254] ip6_route_output_flags+0x259/0x480 [ 4068.704423][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4068.704423][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4068.704423][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.704423][ T254] netlink_unicast+0x449/0x710 [ 4068.704423][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.704423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.704423][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.704423][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.704423][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.704423][ T254] [ 4068.706668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.706668][ T254] netdev_get_by_index+0x5e/0x80 [ 4068.706668][ T254] fib6_nh_init+0x3d8/0x1580 [ 4068.706668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4068.706668][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4068.706668][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4068.706668][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4068.706668][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4068.706668][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4068.706668][ T254] addrconf_dad_begin+0x310/0x670 [ 4068.706668][ T254] addrconf_dad_work+0x10b/0xab0 [ 4068.706668][ T254] process_one_work+0x84d/0x18a0 [ 4068.706668][ T254] worker_thread+0x587/0xd30 [ 4068.706668][ T254] kthread+0x28a/0x350 [ 4068.706668][ T254] ret_from_fork+0x31/0x70 [ 4068.706668][ T254] ret_from_fork_asm+0x1a/0x30 [ 4068.706668][ T254] [ 4068.708910][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.708910][ T254] netdev_get_by_index+0x5e/0x80 [ 4068.708910][ T254] fib6_nh_init+0x3d8/0x1580 [ 4068.708910][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4068.708910][ T254] ip6_route_add+0x1c/0x140 [ 4068.708910][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4068.708910][ T254] inet6_addr_add+0x4f8/0xa40 [ 4068.708910][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4068.708910][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4068.708910][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.708910][ T254] netlink_unicast+0x449/0x710 [ 4068.708910][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.708910][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.708910][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.708910][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.708910][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.708910][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4068.708910][ T254] [ 4068.711180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.711180][ T254] netdev_get_by_index+0x5e/0x80 [ 4068.711180][ T254] fib6_nh_init+0x3d8/0x1580 [ 4068.711180][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4068.711180][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4068.711180][ T254] ipv6_add_addr+0x411/0x2000 [ 4068.711180][ T254] inet6_addr_add+0x30e/0xa40 [ 4068.711180][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4068.711180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4068.711180][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.711180][ T254] netlink_unicast+0x449/0x710 [ 4068.711180][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.711180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.711180][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.711180][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.711180][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.711180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4068.711180][ T254] [ 4068.713443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.713443][ T254] netdev_get_by_index+0x5e/0x80 [ 4068.713443][ T254] fib6_nh_init+0x3d8/0x1580 [ 4068.713443][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4068.713443][ T254] ip6_route_add+0x1c/0x140 [ 4068.713443][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4068.713443][ T254] addrconf_add_dev+0xe2/0x170 [ 4068.713443][ T254] inet6_addr_add+0x12f/0xa40 [ 4068.713443][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4068.713443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4068.713443][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.713443][ T254] netlink_unicast+0x449/0x710 [ 4068.713443][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.713443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.713443][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.713443][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.713443][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.713443][ T254] [ 4068.715668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.715668][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4068.715668][ T254] ipv6_find_idev+0x102/0x170 [ 4068.715668][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4068.715668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4068.715668][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.715668][ T254] netlink_unicast+0x449/0x710 [ 4068.715668][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.715668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.715668][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.715668][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.715668][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.715668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4068.715668][ T254] [ 4068.717408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4068.717408][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4068.717408][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4068.717408][ T254] ipv6_find_idev+0x102/0x170 [ 4068.717408][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4068.717408][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4068.717408][ T254] netlink_rcv_skb+0x130/0x360 [ 4068.717408][ T254] netlink_unicast+0x449/0x710 [ 4068.717408][ T254] netlink_sendmsg+0x723/0xbe0 [ 4068.717408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4068.717408][ T254] ___sys_sendmsg+0xee/0x170 [ 4068.717408][ T254] __sys_sendmsg+0xcd/0x170 [ 4068.717408][ T254] do_syscall_64+0xc6/0x1e0 [ 4068.717408][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4068.717408][ T254] [ 4078.959866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4078.960365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.960365][ T254] dst_init+0x84/0x4a0 [ 4078.960365][ T254] dst_alloc+0x97/0x150 [ 4078.960365][ T254] ip6_dst_alloc+0x23/0x90 [ 4078.960365][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4078.960365][ T254] ip6_pol_route+0x56f/0x840 [ 4078.960365][ T254] fib6_rule_lookup+0x334/0x630 [ 4078.960365][ T254] ip6_route_output_flags+0x259/0x480 [ 4078.960365][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4078.960365][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4078.960365][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.960365][ T254] netlink_unicast+0x449/0x710 [ 4078.960365][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.960365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.960365][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.960365][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.960365][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.960365][ T254] [ 4078.962599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.962599][ T254] netdev_get_by_index+0x5e/0x80 [ 4078.962599][ T254] fib6_nh_init+0x3d8/0x1580 [ 4078.962599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4078.962599][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4078.962599][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4078.962599][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4078.962599][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4078.962599][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4078.962599][ T254] addrconf_dad_begin+0x310/0x670 [ 4078.962599][ T254] addrconf_dad_work+0x10b/0xab0 [ 4078.962599][ T254] process_one_work+0x84d/0x18a0 [ 4078.962599][ T254] worker_thread+0x587/0xd30 [ 4078.962599][ T254] kthread+0x28a/0x350 [ 4078.962599][ T254] ret_from_fork+0x31/0x70 [ 4078.962599][ T254] ret_from_fork_asm+0x1a/0x30 [ 4078.962599][ T254] [ 4078.964780][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.964780][ T254] netdev_get_by_index+0x5e/0x80 [ 4078.964780][ T254] fib6_nh_init+0x3d8/0x1580 [ 4078.964780][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4078.964780][ T254] ip6_route_add+0x1c/0x140 [ 4078.964780][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4078.964780][ T254] inet6_addr_add+0x4f8/0xa40 [ 4078.964780][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4078.964780][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4078.964780][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.964780][ T254] netlink_unicast+0x449/0x710 [ 4078.964780][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.964780][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.964780][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.964780][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.964780][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.964780][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4078.964780][ T254] [ 4078.967059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.967059][ T254] netdev_get_by_index+0x5e/0x80 [ 4078.967059][ T254] fib6_nh_init+0x3d8/0x1580 [ 4078.967059][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4078.967059][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4078.967059][ T254] ipv6_add_addr+0x411/0x2000 [ 4078.967059][ T254] inet6_addr_add+0x30e/0xa40 [ 4078.967059][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4078.967059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4078.967059][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.967059][ T254] netlink_unicast+0x449/0x710 [ 4078.967059][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.967059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.967059][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.967059][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.967059][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.967059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4078.967059][ T254] [ 4078.969354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.969354][ T254] netdev_get_by_index+0x5e/0x80 [ 4078.969354][ T254] fib6_nh_init+0x3d8/0x1580 [ 4078.969354][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4078.969354][ T254] ip6_route_add+0x1c/0x140 [ 4078.969354][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4078.969354][ T254] addrconf_add_dev+0xe2/0x170 [ 4078.969354][ T254] inet6_addr_add+0x12f/0xa40 [ 4078.969354][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4078.969354][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4078.969354][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.969354][ T254] netlink_unicast+0x449/0x710 [ 4078.969354][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.969354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.969354][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.969354][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.969354][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.969354][ T254] [ 4078.971581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.971581][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4078.971581][ T254] ipv6_find_idev+0x102/0x170 [ 4078.971581][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4078.971581][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4078.971581][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.971581][ T254] netlink_unicast+0x449/0x710 [ 4078.971581][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.971581][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.971581][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.971581][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.971581][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.971581][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4078.971581][ T254] [ 4078.973326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4078.973326][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4078.973326][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4078.973326][ T254] ipv6_find_idev+0x102/0x170 [ 4078.973326][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4078.973326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4078.973326][ T254] netlink_rcv_skb+0x130/0x360 [ 4078.973326][ T254] netlink_unicast+0x449/0x710 [ 4078.973326][ T254] netlink_sendmsg+0x723/0xbe0 [ 4078.973326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4078.973326][ T254] ___sys_sendmsg+0xee/0x170 [ 4078.973326][ T254] __sys_sendmsg+0xcd/0x170 [ 4078.973326][ T254] do_syscall_64+0xc6/0x1e0 [ 4078.973326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4078.973326][ T254] [ 4089.023865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4089.024419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.024419][ T254] dst_init+0x84/0x4a0 [ 4089.024419][ T254] dst_alloc+0x97/0x150 [ 4089.024419][ T254] ip6_dst_alloc+0x23/0x90 [ 4089.024419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4089.024419][ T254] ip6_pol_route+0x56f/0x840 [ 4089.024419][ T254] fib6_rule_lookup+0x334/0x630 [ 4089.024419][ T254] ip6_route_output_flags+0x259/0x480 [ 4089.024419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4089.024419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4089.024419][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.024419][ T254] netlink_unicast+0x449/0x710 [ 4089.024419][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.024419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.024419][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.024419][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.024419][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.024419][ T254] [ 4089.026646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.026646][ T254] netdev_get_by_index+0x5e/0x80 [ 4089.026646][ T254] fib6_nh_init+0x3d8/0x1580 [ 4089.026646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4089.026646][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4089.026646][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4089.026646][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4089.026646][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4089.026646][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4089.026646][ T254] addrconf_dad_begin+0x310/0x670 [ 4089.026646][ T254] addrconf_dad_work+0x10b/0xab0 [ 4089.026646][ T254] process_one_work+0x84d/0x18a0 [ 4089.026646][ T254] worker_thread+0x587/0xd30 [ 4089.026646][ T254] kthread+0x28a/0x350 [ 4089.026646][ T254] ret_from_fork+0x31/0x70 [ 4089.026646][ T254] ret_from_fork_asm+0x1a/0x30 [ 4089.026646][ T254] [ 4089.028838][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.028838][ T254] netdev_get_by_index+0x5e/0x80 [ 4089.028838][ T254] fib6_nh_init+0x3d8/0x1580 [ 4089.028838][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4089.028838][ T254] ip6_route_add+0x1c/0x140 [ 4089.028838][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4089.028838][ T254] inet6_addr_add+0x4f8/0xa40 [ 4089.028838][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.028838][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.028838][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.028838][ T254] netlink_unicast+0x449/0x710 [ 4089.028838][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.028838][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.028838][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.028838][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.028838][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.028838][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.028838][ T254] [ 4089.031117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.031117][ T254] netdev_get_by_index+0x5e/0x80 [ 4089.031117][ T254] fib6_nh_init+0x3d8/0x1580 [ 4089.031117][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4089.031117][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4089.031117][ T254] ipv6_add_addr+0x411/0x2000 [ 4089.031117][ T254] inet6_addr_add+0x30e/0xa40 [ 4089.031117][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.031117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.031117][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.031117][ T254] netlink_unicast+0x449/0x710 [ 4089.031117][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.031117][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.031117][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.031117][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.031117][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.031117][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.031117][ T254] [ 4089.033426][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.033426][ T254] netdev_get_by_index+0x5e/0x80 [ 4089.033426][ T254] fib6_nh_init+0x3d8/0x1580 [ 4089.033426][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4089.033426][ T254] ip6_route_add+0x1c/0x140 [ 4089.033426][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4089.033426][ T254] addrconf_add_dev+0xe2/0x170 [ 4089.033426][ T254] inet6_addr_add+0x12f/0xa40 [ 4089.033426][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4089.033426][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.033426][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.033426][ T254] netlink_unicast+0x449/0x710 [ 4089.033426][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.033426][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.033426][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.033426][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.033426][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.033426][ T254] [ 4089.035650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.035650][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4089.035650][ T254] ipv6_find_idev+0x102/0x170 [ 4089.035650][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.035650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.035650][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.035650][ T254] netlink_unicast+0x449/0x710 [ 4089.035650][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.035650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.035650][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.035650][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.035650][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.035650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.035650][ T254] [ 4089.037422][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4089.037422][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4089.037422][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4089.037422][ T254] ipv6_find_idev+0x102/0x170 [ 4089.037422][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4089.037422][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4089.037422][ T254] netlink_rcv_skb+0x130/0x360 [ 4089.037422][ T254] netlink_unicast+0x449/0x710 [ 4089.037422][ T254] netlink_sendmsg+0x723/0xbe0 [ 4089.037422][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4089.037422][ T254] ___sys_sendmsg+0xee/0x170 [ 4089.037422][ T254] __sys_sendmsg+0xcd/0x170 [ 4089.037422][ T254] do_syscall_64+0xc6/0x1e0 [ 4089.037422][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4089.037422][ T254] [ 4099.287847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4099.288404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.288404][ T254] dst_init+0x84/0x4a0 [ 4099.288404][ T254] dst_alloc+0x97/0x150 [ 4099.288404][ T254] ip6_dst_alloc+0x23/0x90 [ 4099.288404][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4099.288404][ T254] ip6_pol_route+0x56f/0x840 [ 4099.288404][ T254] fib6_rule_lookup+0x334/0x630 [ 4099.288404][ T254] ip6_route_output_flags+0x259/0x480 [ 4099.288404][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4099.288404][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4099.288404][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.288404][ T254] netlink_unicast+0x449/0x710 [ 4099.288404][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.288404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.288404][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.288404][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.288404][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.288404][ T254] [ 4099.290929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.290929][ T254] netdev_get_by_index+0x5e/0x80 [ 4099.290929][ T254] fib6_nh_init+0x3d8/0x1580 [ 4099.290929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4099.290929][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4099.290929][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4099.290929][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4099.290929][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4099.290929][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4099.290929][ T254] addrconf_dad_begin+0x310/0x670 [ 4099.290929][ T254] addrconf_dad_work+0x10b/0xab0 [ 4099.290929][ T254] process_one_work+0x84d/0x18a0 [ 4099.290929][ T254] worker_thread+0x587/0xd30 [ 4099.290929][ T254] kthread+0x28a/0x350 [ 4099.290929][ T254] ret_from_fork+0x31/0x70 [ 4099.290929][ T254] ret_from_fork_asm+0x1a/0x30 [ 4099.290929][ T254] [ 4099.293371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.293371][ T254] netdev_get_by_index+0x5e/0x80 [ 4099.293371][ T254] fib6_nh_init+0x3d8/0x1580 [ 4099.293371][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4099.293371][ T254] ip6_route_add+0x1c/0x140 [ 4099.293371][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4099.293371][ T254] inet6_addr_add+0x4f8/0xa40 [ 4099.293371][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4099.293371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4099.293371][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.293371][ T254] netlink_unicast+0x449/0x710 [ 4099.293371][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.293371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.293371][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.293371][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.293371][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.293371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4099.293371][ T254] [ 4099.295951][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.295951][ T254] netdev_get_by_index+0x5e/0x80 [ 4099.295951][ T254] fib6_nh_init+0x3d8/0x1580 [ 4099.295951][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4099.295951][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4099.295951][ T254] ipv6_add_addr+0x411/0x2000 [ 4099.295951][ T254] inet6_addr_add+0x30e/0xa40 [ 4099.295951][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4099.295951][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4099.295951][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.295951][ T254] netlink_unicast+0x449/0x710 [ 4099.295951][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.295951][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.295951][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.295951][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.295951][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.295951][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4099.295951][ T254] [ 4099.298507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.298507][ T254] netdev_get_by_index+0x5e/0x80 [ 4099.298507][ T254] fib6_nh_init+0x3d8/0x1580 [ 4099.298507][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4099.298507][ T254] ip6_route_add+0x1c/0x140 [ 4099.298507][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4099.298507][ T254] addrconf_add_dev+0xe2/0x170 [ 4099.298507][ T254] inet6_addr_add+0x12f/0xa40 [ 4099.298507][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4099.298507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4099.298507][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.298507][ T254] netlink_unicast+0x449/0x710 [ 4099.298507][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.298507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.298507][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.298507][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.298507][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.298507][ T254] [ 4099.301021][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.301021][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4099.301021][ T254] ipv6_find_idev+0x102/0x170 [ 4099.301021][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4099.301021][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4099.301021][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.301021][ T254] netlink_unicast+0x449/0x710 [ 4099.301021][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.301021][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.301021][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.301021][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.301021][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.301021][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4099.301021][ T254] [ 4099.302984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4099.302984][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4099.302984][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4099.302984][ T254] ipv6_find_idev+0x102/0x170 [ 4099.302984][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4099.302984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4099.302984][ T254] netlink_rcv_skb+0x130/0x360 [ 4099.302984][ T254] netlink_unicast+0x449/0x710 [ 4099.302984][ T254] netlink_sendmsg+0x723/0xbe0 [ 4099.302984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4099.302984][ T254] ___sys_sendmsg+0xee/0x170 [ 4099.302984][ T254] __sys_sendmsg+0xcd/0x170 [ 4099.302984][ T254] do_syscall_64+0xc6/0x1e0 [ 4099.302984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4099.302984][ T254] [ 4109.543885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4109.544411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.544411][ T254] dst_init+0x84/0x4a0 [ 4109.544411][ T254] dst_alloc+0x97/0x150 [ 4109.544411][ T254] ip6_dst_alloc+0x23/0x90 [ 4109.544411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4109.544411][ T254] ip6_pol_route+0x56f/0x840 [ 4109.544411][ T254] fib6_rule_lookup+0x334/0x630 [ 4109.544411][ T254] ip6_route_output_flags+0x259/0x480 [ 4109.544411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4109.544411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4109.544411][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.544411][ T254] netlink_unicast+0x449/0x710 [ 4109.544411][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.544411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.544411][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.544411][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.544411][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.544411][ T254] [ 4109.546637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.546637][ T254] netdev_get_by_index+0x5e/0x80 [ 4109.546637][ T254] fib6_nh_init+0x3d8/0x1580 [ 4109.546637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4109.546637][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4109.546637][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4109.546637][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4109.546637][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4109.546637][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4109.546637][ T254] addrconf_dad_begin+0x310/0x670 [ 4109.546637][ T254] addrconf_dad_work+0x10b/0xab0 [ 4109.546637][ T254] process_one_work+0x84d/0x18a0 [ 4109.546637][ T254] worker_thread+0x587/0xd30 [ 4109.546637][ T254] kthread+0x28a/0x350 [ 4109.546637][ T254] ret_from_fork+0x31/0x70 [ 4109.546637][ T254] ret_from_fork_asm+0x1a/0x30 [ 4109.546637][ T254] [ 4109.548835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.548835][ T254] netdev_get_by_index+0x5e/0x80 [ 4109.548835][ T254] fib6_nh_init+0x3d8/0x1580 [ 4109.548835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4109.548835][ T254] ip6_route_add+0x1c/0x140 [ 4109.548835][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4109.548835][ T254] inet6_addr_add+0x4f8/0xa40 [ 4109.548835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4109.548835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4109.548835][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.548835][ T254] netlink_unicast+0x449/0x710 [ 4109.548835][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.548835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.548835][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.548835][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.548835][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.548835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4109.548835][ T254] [ 4109.551116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.551116][ T254] netdev_get_by_index+0x5e/0x80 [ 4109.551116][ T254] fib6_nh_init+0x3d8/0x1580 [ 4109.551116][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4109.551116][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4109.551116][ T254] ipv6_add_addr+0x411/0x2000 [ 4109.551116][ T254] inet6_addr_add+0x30e/0xa40 [ 4109.551116][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4109.551116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4109.551116][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.551116][ T254] netlink_unicast+0x449/0x710 [ 4109.551116][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.551116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.551116][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.551116][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.551116][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.551116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4109.551116][ T254] [ 4109.553383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.553383][ T254] netdev_get_by_index+0x5e/0x80 [ 4109.553383][ T254] fib6_nh_init+0x3d8/0x1580 [ 4109.553383][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4109.553383][ T254] ip6_route_add+0x1c/0x140 [ 4109.553383][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4109.553383][ T254] addrconf_add_dev+0xe2/0x170 [ 4109.553383][ T254] inet6_addr_add+0x12f/0xa40 [ 4109.553383][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4109.553383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4109.553383][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.553383][ T254] netlink_unicast+0x449/0x710 [ 4109.553383][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.553383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.553383][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.553383][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.553383][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.553383][ T254] [ 4109.555609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.555609][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4109.555609][ T254] ipv6_find_idev+0x102/0x170 [ 4109.555609][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4109.555609][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4109.555609][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.555609][ T254] netlink_unicast+0x449/0x710 [ 4109.555609][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.555609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.555609][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.555609][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.555609][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.555609][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4109.555609][ T254] [ 4109.557366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4109.557366][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4109.557366][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4109.557366][ T254] ipv6_find_idev+0x102/0x170 [ 4109.557366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4109.557366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4109.557366][ T254] netlink_rcv_skb+0x130/0x360 [ 4109.557366][ T254] netlink_unicast+0x449/0x710 [ 4109.557366][ T254] netlink_sendmsg+0x723/0xbe0 [ 4109.557366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4109.557366][ T254] ___sys_sendmsg+0xee/0x170 [ 4109.557366][ T254] __sys_sendmsg+0xcd/0x170 [ 4109.557366][ T254] do_syscall_64+0xc6/0x1e0 [ 4109.557366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4109.557366][ T254] [ 4119.799862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4119.800577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.800577][ T254] dst_init+0x84/0x4a0 [ 4119.800577][ T254] dst_alloc+0x97/0x150 [ 4119.800577][ T254] ip6_dst_alloc+0x23/0x90 [ 4119.800577][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4119.800577][ T254] ip6_pol_route+0x56f/0x840 [ 4119.800577][ T254] fib6_rule_lookup+0x334/0x630 [ 4119.800577][ T254] ip6_route_output_flags+0x259/0x480 [ 4119.800577][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4119.800577][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4119.800577][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.800577][ T254] netlink_unicast+0x449/0x710 [ 4119.800577][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.800577][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.800577][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.800577][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.800577][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.800577][ T254] [ 4119.804026][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.804026][ T254] netdev_get_by_index+0x5e/0x80 [ 4119.804026][ T254] fib6_nh_init+0x3d8/0x1580 [ 4119.804026][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4119.804026][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4119.804026][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4119.804026][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4119.804026][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4119.804026][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4119.804026][ T254] addrconf_dad_begin+0x310/0x670 [ 4119.804026][ T254] addrconf_dad_work+0x10b/0xab0 [ 4119.804026][ T254] process_one_work+0x84d/0x18a0 [ 4119.804026][ T254] worker_thread+0x587/0xd30 [ 4119.804026][ T254] kthread+0x28a/0x350 [ 4119.804026][ T254] ret_from_fork+0x31/0x70 [ 4119.804026][ T254] ret_from_fork_asm+0x1a/0x30 [ 4119.804026][ T254] [ 4119.807254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.807254][ T254] netdev_get_by_index+0x5e/0x80 [ 4119.807254][ T254] fib6_nh_init+0x3d8/0x1580 [ 4119.807254][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4119.807254][ T254] ip6_route_add+0x1c/0x140 [ 4119.807254][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4119.807254][ T254] inet6_addr_add+0x4f8/0xa40 [ 4119.807254][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4119.807254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4119.807254][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.807254][ T254] netlink_unicast+0x449/0x710 [ 4119.807254][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.807254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.807254][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.807254][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.807254][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.807254][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4119.807254][ T254] [ 4119.810959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.810959][ T254] netdev_get_by_index+0x5e/0x80 [ 4119.810959][ T254] fib6_nh_init+0x3d8/0x1580 [ 4119.810959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4119.810959][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4119.810959][ T254] ipv6_add_addr+0x411/0x2000 [ 4119.810959][ T254] inet6_addr_add+0x30e/0xa40 [ 4119.810959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4119.810959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4119.810959][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.810959][ T254] netlink_unicast+0x449/0x710 [ 4119.810959][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.810959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.810959][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.810959][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.810959][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.810959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4119.810959][ T254] [ 4119.814570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.814570][ T254] netdev_get_by_index+0x5e/0x80 [ 4119.814570][ T254] fib6_nh_init+0x3d8/0x1580 [ 4119.814570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4119.814570][ T254] ip6_route_add+0x1c/0x140 [ 4119.814570][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4119.814570][ T254] addrconf_add_dev+0xe2/0x170 [ 4119.814570][ T254] inet6_addr_add+0x12f/0xa40 [ 4119.814570][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4119.814570][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4119.814570][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.814570][ T254] netlink_unicast+0x449/0x710 [ 4119.814570][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.814570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.814570][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.814570][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.814570][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.814570][ T254] [ 4119.818047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.818047][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4119.818047][ T254] ipv6_find_idev+0x102/0x170 [ 4119.818047][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4119.818047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4119.818047][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.818047][ T254] netlink_unicast+0x449/0x710 [ 4119.818047][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.818047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.818047][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.818047][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.818047][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.818047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4119.818047][ T254] [ 4119.820815][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4119.820815][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4119.820815][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4119.820815][ T254] ipv6_find_idev+0x102/0x170 [ 4119.820815][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4119.820815][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4119.820815][ T254] netlink_rcv_skb+0x130/0x360 [ 4119.820815][ T254] netlink_unicast+0x449/0x710 [ 4119.820815][ T254] netlink_sendmsg+0x723/0xbe0 [ 4119.820815][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4119.820815][ T254] ___sys_sendmsg+0xee/0x170 [ 4119.820815][ T254] __sys_sendmsg+0xcd/0x170 [ 4119.820815][ T254] do_syscall_64+0xc6/0x1e0 [ 4119.820815][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4119.820815][ T254] [ 4129.959887][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4129.960447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.960447][ T254] dst_init+0x84/0x4a0 [ 4129.960447][ T254] dst_alloc+0x97/0x150 [ 4129.960447][ T254] ip6_dst_alloc+0x23/0x90 [ 4129.960447][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4129.960447][ T254] ip6_pol_route+0x56f/0x840 [ 4129.960447][ T254] fib6_rule_lookup+0x334/0x630 [ 4129.960447][ T254] ip6_route_output_flags+0x259/0x480 [ 4129.960447][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4129.960447][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4129.960447][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.960447][ T254] netlink_unicast+0x449/0x710 [ 4129.960447][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.960447][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.960447][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.960447][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.960447][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.960447][ T254] [ 4129.962658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.962658][ T254] netdev_get_by_index+0x5e/0x80 [ 4129.962658][ T254] fib6_nh_init+0x3d8/0x1580 [ 4129.962658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4129.962658][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4129.962658][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4129.962658][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4129.962658][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4129.962658][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4129.962658][ T254] addrconf_dad_begin+0x310/0x670 [ 4129.962658][ T254] addrconf_dad_work+0x10b/0xab0 [ 4129.962658][ T254] process_one_work+0x84d/0x18a0 [ 4129.962658][ T254] worker_thread+0x587/0xd30 [ 4129.962658][ T254] kthread+0x28a/0x350 [ 4129.962658][ T254] ret_from_fork+0x31/0x70 [ 4129.962658][ T254] ret_from_fork_asm+0x1a/0x30 [ 4129.962658][ T254] [ 4129.964781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.964781][ T254] netdev_get_by_index+0x5e/0x80 [ 4129.964781][ T254] fib6_nh_init+0x3d8/0x1580 [ 4129.964781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4129.964781][ T254] ip6_route_add+0x1c/0x140 [ 4129.964781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4129.964781][ T254] inet6_addr_add+0x4f8/0xa40 [ 4129.964781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4129.964781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4129.964781][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.964781][ T254] netlink_unicast+0x449/0x710 [ 4129.964781][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.964781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.964781][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.964781][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.964781][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.964781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4129.964781][ T254] [ 4129.967556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.967556][ T254] netdev_get_by_index+0x5e/0x80 [ 4129.967556][ T254] fib6_nh_init+0x3d8/0x1580 [ 4129.967556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4129.967556][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4129.967556][ T254] ipv6_add_addr+0x411/0x2000 [ 4129.967556][ T254] inet6_addr_add+0x30e/0xa40 [ 4129.967556][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4129.967556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4129.967556][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.967556][ T254] netlink_unicast+0x449/0x710 [ 4129.967556][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.967556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.967556][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.967556][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.967556][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.967556][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4129.967556][ T254] [ 4129.969839][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.969839][ T254] netdev_get_by_index+0x5e/0x80 [ 4129.969839][ T254] fib6_nh_init+0x3d8/0x1580 [ 4129.969839][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4129.969839][ T254] ip6_route_add+0x1c/0x140 [ 4129.969839][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4129.969839][ T254] addrconf_add_dev+0xe2/0x170 [ 4129.969839][ T254] inet6_addr_add+0x12f/0xa40 [ 4129.969839][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4129.969839][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4129.969839][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.969839][ T254] netlink_unicast+0x449/0x710 [ 4129.969839][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.969839][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.969839][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.969839][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.969839][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.969839][ T254] [ 4129.972049][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.972049][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4129.972049][ T254] ipv6_find_idev+0x102/0x170 [ 4129.972049][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4129.972049][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4129.972049][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.972049][ T254] netlink_unicast+0x449/0x710 [ 4129.972049][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.972049][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.972049][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.972049][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.972049][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.972049][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4129.972049][ T254] [ 4129.973789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4129.973789][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4129.973789][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4129.973789][ T254] ipv6_find_idev+0x102/0x170 [ 4129.973789][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4129.973789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4129.973789][ T254] netlink_rcv_skb+0x130/0x360 [ 4129.973789][ T254] netlink_unicast+0x449/0x710 [ 4129.973789][ T254] netlink_sendmsg+0x723/0xbe0 [ 4129.973789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4129.973789][ T254] ___sys_sendmsg+0xee/0x170 [ 4129.973789][ T254] __sys_sendmsg+0xcd/0x170 [ 4129.973789][ T254] do_syscall_64+0xc6/0x1e0 [ 4129.973789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4129.973789][ T254] [ 4140.223886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4140.224415][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.224415][ T254] dst_init+0x84/0x4a0 [ 4140.224415][ T254] dst_alloc+0x97/0x150 [ 4140.224415][ T254] ip6_dst_alloc+0x23/0x90 [ 4140.224415][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4140.224415][ T254] ip6_pol_route+0x56f/0x840 [ 4140.224415][ T254] fib6_rule_lookup+0x334/0x630 [ 4140.224415][ T254] ip6_route_output_flags+0x259/0x480 [ 4140.224415][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4140.224415][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4140.224415][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.224415][ T254] netlink_unicast+0x449/0x710 [ 4140.224415][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.224415][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.224415][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.224415][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.224415][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.224415][ T254] [ 4140.226629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.226629][ T254] netdev_get_by_index+0x5e/0x80 [ 4140.226629][ T254] fib6_nh_init+0x3d8/0x1580 [ 4140.226629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4140.226629][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4140.226629][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4140.226629][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4140.226629][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4140.226629][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4140.226629][ T254] addrconf_dad_begin+0x310/0x670 [ 4140.226629][ T254] addrconf_dad_work+0x10b/0xab0 [ 4140.226629][ T254] process_one_work+0x84d/0x18a0 [ 4140.226629][ T254] worker_thread+0x587/0xd30 [ 4140.226629][ T254] kthread+0x28a/0x350 [ 4140.226629][ T254] ret_from_fork+0x31/0x70 [ 4140.226629][ T254] ret_from_fork_asm+0x1a/0x30 [ 4140.226629][ T254] [ 4140.229238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.229238][ T254] netdev_get_by_index+0x5e/0x80 [ 4140.229238][ T254] fib6_nh_init+0x3d8/0x1580 [ 4140.229238][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4140.229238][ T254] ip6_route_add+0x1c/0x140 [ 4140.229238][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4140.229238][ T254] inet6_addr_add+0x4f8/0xa40 [ 4140.229238][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.229238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.229238][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.229238][ T254] netlink_unicast+0x449/0x710 [ 4140.229238][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.229238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.229238][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.229238][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.229238][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.229238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.229238][ T254] [ 4140.231512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.231512][ T254] netdev_get_by_index+0x5e/0x80 [ 4140.231512][ T254] fib6_nh_init+0x3d8/0x1580 [ 4140.231512][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4140.231512][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4140.231512][ T254] ipv6_add_addr+0x411/0x2000 [ 4140.231512][ T254] inet6_addr_add+0x30e/0xa40 [ 4140.231512][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.231512][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.231512][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.231512][ T254] netlink_unicast+0x449/0x710 [ 4140.231512][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.231512][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.231512][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.231512][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.231512][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.231512][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.231512][ T254] [ 4140.233768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.233768][ T254] netdev_get_by_index+0x5e/0x80 [ 4140.233768][ T254] fib6_nh_init+0x3d8/0x1580 [ 4140.233768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4140.233768][ T254] ip6_route_add+0x1c/0x140 [ 4140.233768][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4140.233768][ T254] addrconf_add_dev+0xe2/0x170 [ 4140.233768][ T254] inet6_addr_add+0x12f/0xa40 [ 4140.233768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4140.233768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.233768][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.233768][ T254] netlink_unicast+0x449/0x710 [ 4140.233768][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.233768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.233768][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.233768][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.233768][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.233768][ T254] [ 4140.236106][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.236106][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4140.236106][ T254] ipv6_find_idev+0x102/0x170 [ 4140.236106][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.236106][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.236106][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.236106][ T254] netlink_unicast+0x449/0x710 [ 4140.236106][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.236106][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.236106][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.236106][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.236106][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.236106][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.236106][ T254] [ 4140.237852][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4140.237852][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4140.237852][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4140.237852][ T254] ipv6_find_idev+0x102/0x170 [ 4140.237852][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4140.237852][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4140.237852][ T254] netlink_rcv_skb+0x130/0x360 [ 4140.237852][ T254] netlink_unicast+0x449/0x710 [ 4140.237852][ T254] netlink_sendmsg+0x723/0xbe0 [ 4140.237852][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4140.237852][ T254] ___sys_sendmsg+0xee/0x170 [ 4140.237852][ T254] __sys_sendmsg+0xcd/0x170 [ 4140.237852][ T254] do_syscall_64+0xc6/0x1e0 [ 4140.237852][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4140.237852][ T254] [ 4150.487875][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4150.488393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.488393][ T254] dst_init+0x84/0x4a0 [ 4150.488393][ T254] dst_alloc+0x97/0x150 [ 4150.488393][ T254] ip6_dst_alloc+0x23/0x90 [ 4150.488393][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4150.488393][ T254] ip6_pol_route+0x56f/0x840 [ 4150.488393][ T254] fib6_rule_lookup+0x334/0x630 [ 4150.488393][ T254] ip6_route_output_flags+0x259/0x480 [ 4150.488393][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4150.488393][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4150.488393][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.488393][ T254] netlink_unicast+0x449/0x710 [ 4150.488393][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.488393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.488393][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.488393][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.488393][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.488393][ T254] [ 4150.490663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.490663][ T254] netdev_get_by_index+0x5e/0x80 [ 4150.490663][ T254] fib6_nh_init+0x3d8/0x1580 [ 4150.490663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4150.490663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4150.490663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4150.490663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4150.490663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4150.490663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4150.490663][ T254] addrconf_dad_begin+0x310/0x670 [ 4150.490663][ T254] addrconf_dad_work+0x10b/0xab0 [ 4150.490663][ T254] process_one_work+0x84d/0x18a0 [ 4150.490663][ T254] worker_thread+0x587/0xd30 [ 4150.490663][ T254] kthread+0x28a/0x350 [ 4150.490663][ T254] ret_from_fork+0x31/0x70 [ 4150.490663][ T254] ret_from_fork_asm+0x1a/0x30 [ 4150.490663][ T254] [ 4150.492843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.492843][ T254] netdev_get_by_index+0x5e/0x80 [ 4150.492843][ T254] fib6_nh_init+0x3d8/0x1580 [ 4150.492843][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4150.492843][ T254] ip6_route_add+0x1c/0x140 [ 4150.492843][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4150.492843][ T254] inet6_addr_add+0x4f8/0xa40 [ 4150.492843][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4150.492843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4150.492843][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.492843][ T254] netlink_unicast+0x449/0x710 [ 4150.492843][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.492843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.492843][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.492843][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.492843][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.492843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4150.492843][ T254] [ 4150.495116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.495116][ T254] netdev_get_by_index+0x5e/0x80 [ 4150.495116][ T254] fib6_nh_init+0x3d8/0x1580 [ 4150.495116][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4150.495116][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4150.495116][ T254] ipv6_add_addr+0x411/0x2000 [ 4150.495116][ T254] inet6_addr_add+0x30e/0xa40 [ 4150.495116][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4150.495116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4150.495116][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.495116][ T254] netlink_unicast+0x449/0x710 [ 4150.495116][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.495116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.495116][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.495116][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.495116][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.495116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4150.495116][ T254] [ 4150.497388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.497388][ T254] netdev_get_by_index+0x5e/0x80 [ 4150.497388][ T254] fib6_nh_init+0x3d8/0x1580 [ 4150.497388][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4150.497388][ T254] ip6_route_add+0x1c/0x140 [ 4150.497388][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4150.497388][ T254] addrconf_add_dev+0xe2/0x170 [ 4150.497388][ T254] inet6_addr_add+0x12f/0xa40 [ 4150.497388][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4150.497388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4150.497388][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.497388][ T254] netlink_unicast+0x449/0x710 [ 4150.497388][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.497388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.497388][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.497388][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.497388][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.497388][ T254] [ 4150.499639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.499639][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4150.499639][ T254] ipv6_find_idev+0x102/0x170 [ 4150.499639][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4150.499639][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4150.499639][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.499639][ T254] netlink_unicast+0x449/0x710 [ 4150.499639][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.499639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.499639][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.499639][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.499639][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.499639][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4150.499639][ T254] [ 4150.501383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4150.501383][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4150.501383][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4150.501383][ T254] ipv6_find_idev+0x102/0x170 [ 4150.501383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4150.501383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4150.501383][ T254] netlink_rcv_skb+0x130/0x360 [ 4150.501383][ T254] netlink_unicast+0x449/0x710 [ 4150.501383][ T254] netlink_sendmsg+0x723/0xbe0 [ 4150.501383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4150.501383][ T254] ___sys_sendmsg+0xee/0x170 [ 4150.501383][ T254] __sys_sendmsg+0xcd/0x170 [ 4150.501383][ T254] do_syscall_64+0xc6/0x1e0 [ 4150.501383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4150.501383][ T254] [ 4160.671864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4160.672411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.672411][ T254] dst_init+0x84/0x4a0 [ 4160.672411][ T254] dst_alloc+0x97/0x150 [ 4160.672411][ T254] ip6_dst_alloc+0x23/0x90 [ 4160.672411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4160.672411][ T254] ip6_pol_route+0x56f/0x840 [ 4160.672411][ T254] fib6_rule_lookup+0x334/0x630 [ 4160.672411][ T254] ip6_route_output_flags+0x259/0x480 [ 4160.672411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4160.672411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4160.672411][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.672411][ T254] netlink_unicast+0x449/0x710 [ 4160.672411][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.672411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.672411][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.672411][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.672411][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.672411][ T254] [ 4160.674853][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.674853][ T254] netdev_get_by_index+0x5e/0x80 [ 4160.674853][ T254] fib6_nh_init+0x3d8/0x1580 [ 4160.674853][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4160.674853][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4160.674853][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4160.674853][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4160.674853][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4160.674853][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4160.674853][ T254] addrconf_dad_begin+0x310/0x670 [ 4160.674853][ T254] addrconf_dad_work+0x10b/0xab0 [ 4160.674853][ T254] process_one_work+0x84d/0x18a0 [ 4160.674853][ T254] worker_thread+0x587/0xd30 [ 4160.674853][ T254] kthread+0x28a/0x350 [ 4160.674853][ T254] ret_from_fork+0x31/0x70 [ 4160.674853][ T254] ret_from_fork_asm+0x1a/0x30 [ 4160.674853][ T254] [ 4160.677259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.677259][ T254] netdev_get_by_index+0x5e/0x80 [ 4160.677259][ T254] fib6_nh_init+0x3d8/0x1580 [ 4160.677259][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4160.677259][ T254] ip6_route_add+0x1c/0x140 [ 4160.677259][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4160.677259][ T254] inet6_addr_add+0x4f8/0xa40 [ 4160.677259][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4160.677259][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4160.677259][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.677259][ T254] netlink_unicast+0x449/0x710 [ 4160.677259][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.677259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.677259][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.677259][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.677259][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.677259][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4160.677259][ T254] [ 4160.679748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.679748][ T254] netdev_get_by_index+0x5e/0x80 [ 4160.679748][ T254] fib6_nh_init+0x3d8/0x1580 [ 4160.679748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4160.679748][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4160.679748][ T254] ipv6_add_addr+0x411/0x2000 [ 4160.679748][ T254] inet6_addr_add+0x30e/0xa40 [ 4160.679748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4160.679748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4160.679748][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.679748][ T254] netlink_unicast+0x449/0x710 [ 4160.679748][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.679748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.679748][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.679748][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.679748][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.679748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4160.679748][ T254] [ 4160.682267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.682267][ T254] netdev_get_by_index+0x5e/0x80 [ 4160.682267][ T254] fib6_nh_init+0x3d8/0x1580 [ 4160.682267][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4160.682267][ T254] ip6_route_add+0x1c/0x140 [ 4160.682267][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4160.682267][ T254] addrconf_add_dev+0xe2/0x170 [ 4160.682267][ T254] inet6_addr_add+0x12f/0xa40 [ 4160.682267][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4160.682267][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4160.682267][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.682267][ T254] netlink_unicast+0x449/0x710 [ 4160.682267][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.682267][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.682267][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.682267][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.682267][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.682267][ T254] [ 4160.684730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.684730][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4160.684730][ T254] ipv6_find_idev+0x102/0x170 [ 4160.684730][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4160.684730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4160.684730][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.684730][ T254] netlink_unicast+0x449/0x710 [ 4160.684730][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.684730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.684730][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.684730][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.684730][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.684730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4160.684730][ T254] [ 4160.686689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4160.686689][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4160.686689][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4160.686689][ T254] ipv6_find_idev+0x102/0x170 [ 4160.686689][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4160.686689][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4160.686689][ T254] netlink_rcv_skb+0x130/0x360 [ 4160.686689][ T254] netlink_unicast+0x449/0x710 [ 4160.686689][ T254] netlink_sendmsg+0x723/0xbe0 [ 4160.686689][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4160.686689][ T254] ___sys_sendmsg+0xee/0x170 [ 4160.686689][ T254] __sys_sendmsg+0xcd/0x170 [ 4160.686689][ T254] do_syscall_64+0xc6/0x1e0 [ 4160.686689][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4160.686689][ T254] [ 4170.735846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4170.736479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.736479][ T254] dst_init+0x84/0x4a0 [ 4170.736479][ T254] dst_alloc+0x97/0x150 [ 4170.736479][ T254] ip6_dst_alloc+0x23/0x90 [ 4170.736479][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4170.736479][ T254] ip6_pol_route+0x56f/0x840 [ 4170.736479][ T254] fib6_rule_lookup+0x334/0x630 [ 4170.736479][ T254] ip6_route_output_flags+0x259/0x480 [ 4170.736479][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4170.736479][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4170.736479][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.736479][ T254] netlink_unicast+0x449/0x710 [ 4170.736479][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.736479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.736479][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.736479][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.736479][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.736479][ T254] [ 4170.739397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.739397][ T254] netdev_get_by_index+0x5e/0x80 [ 4170.739397][ T254] fib6_nh_init+0x3d8/0x1580 [ 4170.739397][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4170.739397][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4170.739397][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4170.739397][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4170.739397][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4170.739397][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4170.739397][ T254] addrconf_dad_begin+0x310/0x670 [ 4170.739397][ T254] addrconf_dad_work+0x10b/0xab0 [ 4170.739397][ T254] process_one_work+0x84d/0x18a0 [ 4170.739397][ T254] worker_thread+0x587/0xd30 [ 4170.739397][ T254] kthread+0x28a/0x350 [ 4170.739397][ T254] ret_from_fork+0x31/0x70 [ 4170.739397][ T254] ret_from_fork_asm+0x1a/0x30 [ 4170.739397][ T254] [ 4170.741780][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.741780][ T254] netdev_get_by_index+0x5e/0x80 [ 4170.741780][ T254] fib6_nh_init+0x3d8/0x1580 [ 4170.741780][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4170.741780][ T254] ip6_route_add+0x1c/0x140 [ 4170.741780][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4170.741780][ T254] inet6_addr_add+0x4f8/0xa40 [ 4170.741780][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4170.741780][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4170.741780][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.741780][ T254] netlink_unicast+0x449/0x710 [ 4170.741780][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.741780][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.741780][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.741780][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.741780][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.741780][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4170.741780][ T254] [ 4170.744244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.744244][ T254] netdev_get_by_index+0x5e/0x80 [ 4170.744244][ T254] fib6_nh_init+0x3d8/0x1580 [ 4170.744244][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4170.744244][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4170.744244][ T254] ipv6_add_addr+0x411/0x2000 [ 4170.744244][ T254] inet6_addr_add+0x30e/0xa40 [ 4170.744244][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4170.744244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4170.744244][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.744244][ T254] netlink_unicast+0x449/0x710 [ 4170.744244][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.744244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.744244][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.744244][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.744244][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.744244][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4170.744244][ T254] [ 4170.746696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.746696][ T254] netdev_get_by_index+0x5e/0x80 [ 4170.746696][ T254] fib6_nh_init+0x3d8/0x1580 [ 4170.746696][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4170.746696][ T254] ip6_route_add+0x1c/0x140 [ 4170.746696][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4170.746696][ T254] addrconf_add_dev+0xe2/0x170 [ 4170.746696][ T254] inet6_addr_add+0x12f/0xa40 [ 4170.746696][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4170.746696][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4170.746696][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.746696][ T254] netlink_unicast+0x449/0x710 [ 4170.746696][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.746696][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.746696][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.746696][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.746696][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.746696][ T254] [ 4170.749159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.749159][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4170.749159][ T254] ipv6_find_idev+0x102/0x170 [ 4170.749159][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4170.749159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4170.749159][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.749159][ T254] netlink_unicast+0x449/0x710 [ 4170.749159][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.749159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.749159][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.749159][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.749159][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.749159][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4170.749159][ T254] [ 4170.751074][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4170.751074][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4170.751074][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4170.751074][ T254] ipv6_find_idev+0x102/0x170 [ 4170.751074][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4170.751074][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4170.751074][ T254] netlink_rcv_skb+0x130/0x360 [ 4170.751074][ T254] netlink_unicast+0x449/0x710 [ 4170.751074][ T254] netlink_sendmsg+0x723/0xbe0 [ 4170.751074][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4170.751074][ T254] ___sys_sendmsg+0xee/0x170 [ 4170.751074][ T254] __sys_sendmsg+0xcd/0x170 [ 4170.751074][ T254] do_syscall_64+0xc6/0x1e0 [ 4170.751074][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4170.751074][ T254] [ 4180.991874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4180.992428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4180.992428][ T254] dst_init+0x84/0x4a0 [ 4180.992428][ T254] dst_alloc+0x97/0x150 [ 4180.992428][ T254] ip6_dst_alloc+0x23/0x90 [ 4180.992428][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4180.992428][ T254] ip6_pol_route+0x56f/0x840 [ 4180.992428][ T254] fib6_rule_lookup+0x334/0x630 [ 4180.992428][ T254] ip6_route_output_flags+0x259/0x480 [ 4180.992428][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4180.992428][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4180.992428][ T254] netlink_rcv_skb+0x130/0x360 [ 4180.992428][ T254] netlink_unicast+0x449/0x710 [ 4180.992428][ T254] netlink_sendmsg+0x723/0xbe0 [ 4180.992428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4180.992428][ T254] ___sys_sendmsg+0xee/0x170 [ 4180.992428][ T254] __sys_sendmsg+0xcd/0x170 [ 4180.992428][ T254] do_syscall_64+0xc6/0x1e0 [ 4180.992428][ T254] [ 4180.994913][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4180.994913][ T254] netdev_get_by_index+0x5e/0x80 [ 4180.994913][ T254] fib6_nh_init+0x3d8/0x1580 [ 4180.994913][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4180.994913][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4180.994913][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4180.994913][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4180.994913][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4180.994913][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4180.994913][ T254] addrconf_dad_begin+0x310/0x670 [ 4180.994913][ T254] addrconf_dad_work+0x10b/0xab0 [ 4180.994913][ T254] process_one_work+0x84d/0x18a0 [ 4180.994913][ T254] worker_thread+0x587/0xd30 [ 4180.994913][ T254] kthread+0x28a/0x350 [ 4180.994913][ T254] ret_from_fork+0x31/0x70 [ 4180.994913][ T254] ret_from_fork_asm+0x1a/0x30 [ 4180.994913][ T254] [ 4180.997323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4180.997323][ T254] netdev_get_by_index+0x5e/0x80 [ 4180.997323][ T254] fib6_nh_init+0x3d8/0x1580 [ 4180.997323][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4180.997323][ T254] ip6_route_add+0x1c/0x140 [ 4180.997323][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4180.997323][ T254] inet6_addr_add+0x4f8/0xa40 [ 4180.997323][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4180.997323][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4180.997323][ T254] netlink_rcv_skb+0x130/0x360 [ 4180.997323][ T254] netlink_unicast+0x449/0x710 [ 4180.997323][ T254] netlink_sendmsg+0x723/0xbe0 [ 4180.997323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4180.997323][ T254] ___sys_sendmsg+0xee/0x170 [ 4180.997323][ T254] __sys_sendmsg+0xcd/0x170 [ 4180.997323][ T254] do_syscall_64+0xc6/0x1e0 [ 4180.997323][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4180.997323][ T254] [ 4180.999872][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4180.999872][ T254] netdev_get_by_index+0x5e/0x80 [ 4180.999872][ T254] fib6_nh_init+0x3d8/0x1580 [ 4180.999872][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4180.999872][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4180.999872][ T254] ipv6_add_addr+0x411/0x2000 [ 4180.999872][ T254] inet6_addr_add+0x30e/0xa40 [ 4180.999872][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4180.999872][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4180.999872][ T254] netlink_rcv_skb+0x130/0x360 [ 4180.999872][ T254] netlink_unicast+0x449/0x710 [ 4180.999872][ T254] netlink_sendmsg+0x723/0xbe0 [ 4180.999872][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4180.999872][ T254] ___sys_sendmsg+0xee/0x170 [ 4180.999872][ T254] __sys_sendmsg+0xcd/0x170 [ 4180.999872][ T254] do_syscall_64+0xc6/0x1e0 [ 4180.999872][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4180.999872][ T254] [ 4181.002410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4181.002410][ T254] netdev_get_by_index+0x5e/0x80 [ 4181.002410][ T254] fib6_nh_init+0x3d8/0x1580 [ 4181.002410][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4181.002410][ T254] ip6_route_add+0x1c/0x140 [ 4181.002410][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4181.002410][ T254] addrconf_add_dev+0xe2/0x170 [ 4181.002410][ T254] inet6_addr_add+0x12f/0xa40 [ 4181.002410][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4181.002410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.002410][ T254] netlink_rcv_skb+0x130/0x360 [ 4181.002410][ T254] netlink_unicast+0x449/0x710 [ 4181.002410][ T254] netlink_sendmsg+0x723/0xbe0 [ 4181.002410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4181.002410][ T254] ___sys_sendmsg+0xee/0x170 [ 4181.002410][ T254] __sys_sendmsg+0xcd/0x170 [ 4181.002410][ T254] do_syscall_64+0xc6/0x1e0 [ 4181.002410][ T254] [ 4181.004915][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4181.004915][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4181.004915][ T254] ipv6_find_idev+0x102/0x170 [ 4181.004915][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.004915][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.004915][ T254] netlink_rcv_skb+0x130/0x360 [ 4181.004915][ T254] netlink_unicast+0x449/0x710 [ 4181.004915][ T254] netlink_sendmsg+0x723/0xbe0 [ 4181.004915][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4181.004915][ T254] ___sys_sendmsg+0xee/0x170 [ 4181.004915][ T254] __sys_sendmsg+0xcd/0x170 [ 4181.004915][ T254] do_syscall_64+0xc6/0x1e0 [ 4181.004915][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.004915][ T254] [ 4181.006891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4181.006891][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4181.006891][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4181.006891][ T254] ipv6_find_idev+0x102/0x170 [ 4181.006891][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4181.006891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4181.006891][ T254] netlink_rcv_skb+0x130/0x360 [ 4181.006891][ T254] netlink_unicast+0x449/0x710 [ 4181.006891][ T254] netlink_sendmsg+0x723/0xbe0 [ 4181.006891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4181.006891][ T254] ___sys_sendmsg+0xee/0x170 [ 4181.006891][ T254] __sys_sendmsg+0xcd/0x170 [ 4181.006891][ T254] do_syscall_64+0xc6/0x1e0 [ 4181.006891][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4181.006891][ T254] [ 4191.247839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4191.248351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.248351][ T254] dst_init+0x84/0x4a0 [ 4191.248351][ T254] dst_alloc+0x97/0x150 [ 4191.248351][ T254] ip6_dst_alloc+0x23/0x90 [ 4191.248351][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4191.248351][ T254] ip6_pol_route+0x56f/0x840 [ 4191.248351][ T254] fib6_rule_lookup+0x334/0x630 [ 4191.248351][ T254] ip6_route_output_flags+0x259/0x480 [ 4191.248351][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4191.248351][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4191.248351][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.248351][ T254] netlink_unicast+0x449/0x710 [ 4191.248351][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.248351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.248351][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.248351][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.248351][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.248351][ T254] [ 4191.250853][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.250853][ T254] netdev_get_by_index+0x5e/0x80 [ 4191.250853][ T254] fib6_nh_init+0x3d8/0x1580 [ 4191.250853][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4191.250853][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4191.250853][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4191.250853][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4191.250853][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4191.250853][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4191.250853][ T254] addrconf_dad_begin+0x310/0x670 [ 4191.250853][ T254] addrconf_dad_work+0x10b/0xab0 [ 4191.250853][ T254] process_one_work+0x84d/0x18a0 [ 4191.250853][ T254] worker_thread+0x587/0xd30 [ 4191.250853][ T254] kthread+0x28a/0x350 [ 4191.250853][ T254] ret_from_fork+0x31/0x70 [ 4191.250853][ T254] ret_from_fork_asm+0x1a/0x30 [ 4191.250853][ T254] [ 4191.253321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.253321][ T254] netdev_get_by_index+0x5e/0x80 [ 4191.253321][ T254] fib6_nh_init+0x3d8/0x1580 [ 4191.253321][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4191.253321][ T254] ip6_route_add+0x1c/0x140 [ 4191.253321][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4191.253321][ T254] inet6_addr_add+0x4f8/0xa40 [ 4191.253321][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4191.253321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4191.253321][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.253321][ T254] netlink_unicast+0x449/0x710 [ 4191.253321][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.253321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.253321][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.253321][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.253321][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.253321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4191.253321][ T254] [ 4191.256078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.256078][ T254] netdev_get_by_index+0x5e/0x80 [ 4191.256078][ T254] fib6_nh_init+0x3d8/0x1580 [ 4191.256078][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4191.256078][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4191.256078][ T254] ipv6_add_addr+0x411/0x2000 [ 4191.256078][ T254] inet6_addr_add+0x30e/0xa40 [ 4191.256078][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4191.256078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4191.256078][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.256078][ T254] netlink_unicast+0x449/0x710 [ 4191.256078][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.256078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.256078][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.256078][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.256078][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.256078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4191.256078][ T254] [ 4191.258749][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.258749][ T254] netdev_get_by_index+0x5e/0x80 [ 4191.258749][ T254] fib6_nh_init+0x3d8/0x1580 [ 4191.258749][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4191.258749][ T254] ip6_route_add+0x1c/0x140 [ 4191.258749][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4191.258749][ T254] addrconf_add_dev+0xe2/0x170 [ 4191.258749][ T254] inet6_addr_add+0x12f/0xa40 [ 4191.258749][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4191.258749][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4191.258749][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.258749][ T254] netlink_unicast+0x449/0x710 [ 4191.258749][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.258749][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.258749][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.258749][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.258749][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.258749][ T254] [ 4191.261252][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.261252][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4191.261252][ T254] ipv6_find_idev+0x102/0x170 [ 4191.261252][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4191.261252][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4191.261252][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.261252][ T254] netlink_unicast+0x449/0x710 [ 4191.261252][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.261252][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.261252][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.261252][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.261252][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.261252][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4191.261252][ T254] [ 4191.263221][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4191.263221][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4191.263221][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4191.263221][ T254] ipv6_find_idev+0x102/0x170 [ 4191.263221][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4191.263221][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4191.263221][ T254] netlink_rcv_skb+0x130/0x360 [ 4191.263221][ T254] netlink_unicast+0x449/0x710 [ 4191.263221][ T254] netlink_sendmsg+0x723/0xbe0 [ 4191.263221][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4191.263221][ T254] ___sys_sendmsg+0xee/0x170 [ 4191.263221][ T254] __sys_sendmsg+0xcd/0x170 [ 4191.263221][ T254] do_syscall_64+0xc6/0x1e0 [ 4191.263221][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4191.263221][ T254] [ 4201.351796][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4201.352327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.352327][ T254] dst_init+0x84/0x4a0 [ 4201.352327][ T254] dst_alloc+0x97/0x150 [ 4201.352327][ T254] ip6_dst_alloc+0x23/0x90 [ 4201.352327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4201.352327][ T254] ip6_pol_route+0x56f/0x840 [ 4201.352327][ T254] fib6_rule_lookup+0x334/0x630 [ 4201.352327][ T254] ip6_route_output_flags+0x259/0x480 [ 4201.352327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4201.352327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4201.352327][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.352327][ T254] netlink_unicast+0x449/0x710 [ 4201.352327][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.352327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.352327][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.352327][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.352327][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.352327][ T254] [ 4201.354561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.354561][ T254] netdev_get_by_index+0x5e/0x80 [ 4201.354561][ T254] fib6_nh_init+0x3d8/0x1580 [ 4201.354561][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4201.354561][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4201.354561][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4201.354561][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4201.354561][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4201.354561][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4201.354561][ T254] addrconf_dad_begin+0x310/0x670 [ 4201.354561][ T254] addrconf_dad_work+0x10b/0xab0 [ 4201.354561][ T254] process_one_work+0x84d/0x18a0 [ 4201.354561][ T254] worker_thread+0x587/0xd30 [ 4201.354561][ T254] kthread+0x28a/0x350 [ 4201.354561][ T254] ret_from_fork+0x31/0x70 [ 4201.354561][ T254] ret_from_fork_asm+0x1a/0x30 [ 4201.354561][ T254] [ 4201.356736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.356736][ T254] netdev_get_by_index+0x5e/0x80 [ 4201.356736][ T254] fib6_nh_init+0x3d8/0x1580 [ 4201.356736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4201.356736][ T254] ip6_route_add+0x1c/0x140 [ 4201.356736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4201.356736][ T254] inet6_addr_add+0x4f8/0xa40 [ 4201.356736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4201.356736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4201.356736][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.356736][ T254] netlink_unicast+0x449/0x710 [ 4201.356736][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.356736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.356736][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.356736][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.356736][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.356736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4201.356736][ T254] [ 4201.359014][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.359014][ T254] netdev_get_by_index+0x5e/0x80 [ 4201.359014][ T254] fib6_nh_init+0x3d8/0x1580 [ 4201.359014][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4201.359014][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4201.359014][ T254] ipv6_add_addr+0x411/0x2000 [ 4201.359014][ T254] inet6_addr_add+0x30e/0xa40 [ 4201.359014][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4201.359014][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4201.359014][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.359014][ T254] netlink_unicast+0x449/0x710 [ 4201.359014][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.359014][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.359014][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.359014][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.359014][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.359014][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4201.359014][ T254] [ 4201.361278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.361278][ T254] netdev_get_by_index+0x5e/0x80 [ 4201.361278][ T254] fib6_nh_init+0x3d8/0x1580 [ 4201.361278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4201.361278][ T254] ip6_route_add+0x1c/0x140 [ 4201.361278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4201.361278][ T254] addrconf_add_dev+0xe2/0x170 [ 4201.361278][ T254] inet6_addr_add+0x12f/0xa40 [ 4201.361278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4201.361278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4201.361278][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.361278][ T254] netlink_unicast+0x449/0x710 [ 4201.361278][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.361278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.361278][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.361278][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.361278][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.361278][ T254] [ 4201.363499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.363499][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4201.363499][ T254] ipv6_find_idev+0x102/0x170 [ 4201.363499][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4201.363499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4201.363499][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.363499][ T254] netlink_unicast+0x449/0x710 [ 4201.363499][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.363499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.363499][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.363499][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.363499][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.363499][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4201.363499][ T254] [ 4201.365246][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4201.365246][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4201.365246][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4201.365246][ T254] ipv6_find_idev+0x102/0x170 [ 4201.365246][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4201.365246][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4201.365246][ T254] netlink_rcv_skb+0x130/0x360 [ 4201.365246][ T254] netlink_unicast+0x449/0x710 [ 4201.365246][ T254] netlink_sendmsg+0x723/0xbe0 [ 4201.365246][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4201.365246][ T254] ___sys_sendmsg+0xee/0x170 [ 4201.365246][ T254] __sys_sendmsg+0xcd/0x170 [ 4201.365246][ T254] do_syscall_64+0xc6/0x1e0 [ 4201.365246][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4201.365246][ T254] [ 4211.615854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4211.616374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.616374][ T254] dst_init+0x84/0x4a0 [ 4211.616374][ T254] dst_alloc+0x97/0x150 [ 4211.616374][ T254] ip6_dst_alloc+0x23/0x90 [ 4211.616374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4211.616374][ T254] ip6_pol_route+0x56f/0x840 [ 4211.616374][ T254] fib6_rule_lookup+0x334/0x630 [ 4211.616374][ T254] ip6_route_output_flags+0x259/0x480 [ 4211.616374][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4211.616374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4211.616374][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.616374][ T254] netlink_unicast+0x449/0x710 [ 4211.616374][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.616374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.616374][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.616374][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.616374][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.616374][ T254] [ 4211.618609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.618609][ T254] netdev_get_by_index+0x5e/0x80 [ 4211.618609][ T254] fib6_nh_init+0x3d8/0x1580 [ 4211.618609][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4211.618609][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4211.618609][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4211.618609][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4211.618609][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4211.618609][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4211.618609][ T254] addrconf_dad_begin+0x310/0x670 [ 4211.618609][ T254] addrconf_dad_work+0x10b/0xab0 [ 4211.618609][ T254] process_one_work+0x84d/0x18a0 [ 4211.618609][ T254] worker_thread+0x587/0xd30 [ 4211.618609][ T254] kthread+0x28a/0x350 [ 4211.618609][ T254] ret_from_fork+0x31/0x70 [ 4211.618609][ T254] ret_from_fork_asm+0x1a/0x30 [ 4211.618609][ T254] [ 4211.620796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.620796][ T254] netdev_get_by_index+0x5e/0x80 [ 4211.620796][ T254] fib6_nh_init+0x3d8/0x1580 [ 4211.620796][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4211.620796][ T254] ip6_route_add+0x1c/0x140 [ 4211.620796][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4211.620796][ T254] inet6_addr_add+0x4f8/0xa40 [ 4211.620796][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4211.620796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4211.620796][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.620796][ T254] netlink_unicast+0x449/0x710 [ 4211.620796][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.620796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.620796][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.620796][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.620796][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.620796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4211.620796][ T254] [ 4211.623063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.623063][ T254] netdev_get_by_index+0x5e/0x80 [ 4211.623063][ T254] fib6_nh_init+0x3d8/0x1580 [ 4211.623063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4211.623063][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4211.623063][ T254] ipv6_add_addr+0x411/0x2000 [ 4211.623063][ T254] inet6_addr_add+0x30e/0xa40 [ 4211.623063][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4211.623063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4211.623063][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.623063][ T254] netlink_unicast+0x449/0x710 [ 4211.623063][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.623063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.623063][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.623063][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.623063][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.623063][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4211.623063][ T254] [ 4211.625334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.625334][ T254] netdev_get_by_index+0x5e/0x80 [ 4211.625334][ T254] fib6_nh_init+0x3d8/0x1580 [ 4211.625334][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4211.625334][ T254] ip6_route_add+0x1c/0x140 [ 4211.625334][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4211.625334][ T254] addrconf_add_dev+0xe2/0x170 [ 4211.625334][ T254] inet6_addr_add+0x12f/0xa40 [ 4211.625334][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4211.625334][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4211.625334][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.625334][ T254] netlink_unicast+0x449/0x710 [ 4211.625334][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.625334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.625334][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.625334][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.625334][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.625334][ T254] [ 4211.627564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.627564][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4211.627564][ T254] ipv6_find_idev+0x102/0x170 [ 4211.627564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4211.627564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4211.627564][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.627564][ T254] netlink_unicast+0x449/0x710 [ 4211.627564][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.627564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.627564][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.627564][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.627564][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.627564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4211.627564][ T254] [ 4211.629325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4211.629325][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4211.629325][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4211.629325][ T254] ipv6_find_idev+0x102/0x170 [ 4211.629325][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4211.629325][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4211.629325][ T254] netlink_rcv_skb+0x130/0x360 [ 4211.629325][ T254] netlink_unicast+0x449/0x710 [ 4211.629325][ T254] netlink_sendmsg+0x723/0xbe0 [ 4211.629325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4211.629325][ T254] ___sys_sendmsg+0xee/0x170 [ 4211.629325][ T254] __sys_sendmsg+0xcd/0x170 [ 4211.629325][ T254] do_syscall_64+0xc6/0x1e0 [ 4211.629325][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4211.629325][ T254] [ 4221.879865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4221.880380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.880380][ T254] dst_init+0x84/0x4a0 [ 4221.880380][ T254] dst_alloc+0x97/0x150 [ 4221.880380][ T254] ip6_dst_alloc+0x23/0x90 [ 4221.880380][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4221.880380][ T254] ip6_pol_route+0x56f/0x840 [ 4221.880380][ T254] fib6_rule_lookup+0x334/0x630 [ 4221.880380][ T254] ip6_route_output_flags+0x259/0x480 [ 4221.880380][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4221.880380][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4221.880380][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.880380][ T254] netlink_unicast+0x449/0x710 [ 4221.880380][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.880380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.880380][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.880380][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.880380][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.880380][ T254] [ 4221.882624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.882624][ T254] netdev_get_by_index+0x5e/0x80 [ 4221.882624][ T254] fib6_nh_init+0x3d8/0x1580 [ 4221.882624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4221.882624][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4221.882624][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4221.882624][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4221.882624][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4221.882624][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4221.882624][ T254] addrconf_dad_begin+0x310/0x670 [ 4221.882624][ T254] addrconf_dad_work+0x10b/0xab0 [ 4221.882624][ T254] process_one_work+0x84d/0x18a0 [ 4221.882624][ T254] worker_thread+0x587/0xd30 [ 4221.882624][ T254] kthread+0x28a/0x350 [ 4221.882624][ T254] ret_from_fork+0x31/0x70 [ 4221.882624][ T254] ret_from_fork_asm+0x1a/0x30 [ 4221.882624][ T254] [ 4221.884793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.884793][ T254] netdev_get_by_index+0x5e/0x80 [ 4221.884793][ T254] fib6_nh_init+0x3d8/0x1580 [ 4221.884793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4221.884793][ T254] ip6_route_add+0x1c/0x140 [ 4221.884793][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4221.884793][ T254] inet6_addr_add+0x4f8/0xa40 [ 4221.884793][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4221.884793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4221.884793][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.884793][ T254] netlink_unicast+0x449/0x710 [ 4221.884793][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.884793][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.884793][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.884793][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.884793][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.884793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4221.884793][ T254] [ 4221.887067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.887067][ T254] netdev_get_by_index+0x5e/0x80 [ 4221.887067][ T254] fib6_nh_init+0x3d8/0x1580 [ 4221.887067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4221.887067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4221.887067][ T254] ipv6_add_addr+0x411/0x2000 [ 4221.887067][ T254] inet6_addr_add+0x30e/0xa40 [ 4221.887067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4221.887067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4221.887067][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.887067][ T254] netlink_unicast+0x449/0x710 [ 4221.887067][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.887067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.887067][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.887067][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.887067][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.887067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4221.887067][ T254] [ 4221.889369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.889369][ T254] netdev_get_by_index+0x5e/0x80 [ 4221.889369][ T254] fib6_nh_init+0x3d8/0x1580 [ 4221.889369][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4221.889369][ T254] ip6_route_add+0x1c/0x140 [ 4221.889369][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4221.889369][ T254] addrconf_add_dev+0xe2/0x170 [ 4221.889369][ T254] inet6_addr_add+0x12f/0xa40 [ 4221.889369][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4221.889369][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4221.889369][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.889369][ T254] netlink_unicast+0x449/0x710 [ 4221.889369][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.889369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.889369][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.889369][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.889369][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.889369][ T254] [ 4221.891597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.891597][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4221.891597][ T254] ipv6_find_idev+0x102/0x170 [ 4221.891597][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4221.891597][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4221.891597][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.891597][ T254] netlink_unicast+0x449/0x710 [ 4221.891597][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.891597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.891597][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.891597][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.891597][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.891597][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4221.891597][ T254] [ 4221.893349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4221.893349][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4221.893349][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4221.893349][ T254] ipv6_find_idev+0x102/0x170 [ 4221.893349][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4221.893349][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4221.893349][ T254] netlink_rcv_skb+0x130/0x360 [ 4221.893349][ T254] netlink_unicast+0x449/0x710 [ 4221.893349][ T254] netlink_sendmsg+0x723/0xbe0 [ 4221.893349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4221.893349][ T254] ___sys_sendmsg+0xee/0x170 [ 4221.893349][ T254] __sys_sendmsg+0xcd/0x170 [ 4221.893349][ T254] do_syscall_64+0xc6/0x1e0 [ 4221.893349][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4221.893349][ T254] [ 4232.143840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4232.144488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.144488][ T254] dst_init+0x84/0x4a0 [ 4232.144488][ T254] dst_alloc+0x97/0x150 [ 4232.144488][ T254] ip6_dst_alloc+0x23/0x90 [ 4232.144488][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4232.144488][ T254] ip6_pol_route+0x56f/0x840 [ 4232.144488][ T254] fib6_rule_lookup+0x334/0x630 [ 4232.144488][ T254] ip6_route_output_flags+0x259/0x480 [ 4232.144488][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4232.144488][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4232.144488][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.144488][ T254] netlink_unicast+0x449/0x710 [ 4232.144488][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.144488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.144488][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.144488][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.144488][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.144488][ T254] [ 4232.146921][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.146921][ T254] netdev_get_by_index+0x5e/0x80 [ 4232.146921][ T254] fib6_nh_init+0x3d8/0x1580 [ 4232.146921][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4232.146921][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4232.146921][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4232.146921][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4232.146921][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4232.146921][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4232.146921][ T254] addrconf_dad_begin+0x310/0x670 [ 4232.146921][ T254] addrconf_dad_work+0x10b/0xab0 [ 4232.146921][ T254] process_one_work+0x84d/0x18a0 [ 4232.146921][ T254] worker_thread+0x587/0xd30 [ 4232.146921][ T254] kthread+0x28a/0x350 [ 4232.146921][ T254] ret_from_fork+0x31/0x70 [ 4232.146921][ T254] ret_from_fork_asm+0x1a/0x30 [ 4232.146921][ T254] [ 4232.149391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.149391][ T254] netdev_get_by_index+0x5e/0x80 [ 4232.149391][ T254] fib6_nh_init+0x3d8/0x1580 [ 4232.149391][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4232.149391][ T254] ip6_route_add+0x1c/0x140 [ 4232.149391][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4232.149391][ T254] inet6_addr_add+0x4f8/0xa40 [ 4232.149391][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.149391][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.149391][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.149391][ T254] netlink_unicast+0x449/0x710 [ 4232.149391][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.149391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.149391][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.149391][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.149391][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.149391][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.149391][ T254] [ 4232.151909][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.151909][ T254] netdev_get_by_index+0x5e/0x80 [ 4232.151909][ T254] fib6_nh_init+0x3d8/0x1580 [ 4232.151909][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4232.151909][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4232.151909][ T254] ipv6_add_addr+0x411/0x2000 [ 4232.151909][ T254] inet6_addr_add+0x30e/0xa40 [ 4232.151909][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.151909][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.151909][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.151909][ T254] netlink_unicast+0x449/0x710 [ 4232.151909][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.151909][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.151909][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.151909][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.151909][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.151909][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.151909][ T254] [ 4232.154404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.154404][ T254] netdev_get_by_index+0x5e/0x80 [ 4232.154404][ T254] fib6_nh_init+0x3d8/0x1580 [ 4232.154404][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4232.154404][ T254] ip6_route_add+0x1c/0x140 [ 4232.154404][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4232.154404][ T254] addrconf_add_dev+0xe2/0x170 [ 4232.154404][ T254] inet6_addr_add+0x12f/0xa40 [ 4232.154404][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4232.154404][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.154404][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.154404][ T254] netlink_unicast+0x449/0x710 [ 4232.154404][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.154404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.154404][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.154404][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.154404][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.154404][ T254] [ 4232.156873][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.156873][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4232.156873][ T254] ipv6_find_idev+0x102/0x170 [ 4232.156873][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.156873][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.156873][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.156873][ T254] netlink_unicast+0x449/0x710 [ 4232.156873][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.156873][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.156873][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.156873][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.156873][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.156873][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.156873][ T254] [ 4232.158831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4232.158831][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4232.158831][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4232.158831][ T254] ipv6_find_idev+0x102/0x170 [ 4232.158831][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4232.158831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4232.158831][ T254] netlink_rcv_skb+0x130/0x360 [ 4232.158831][ T254] netlink_unicast+0x449/0x710 [ 4232.158831][ T254] netlink_sendmsg+0x723/0xbe0 [ 4232.158831][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4232.158831][ T254] ___sys_sendmsg+0xee/0x170 [ 4232.158831][ T254] __sys_sendmsg+0xcd/0x170 [ 4232.158831][ T254] do_syscall_64+0xc6/0x1e0 [ 4232.158831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4232.158831][ T254] [ 4242.407846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4242.408494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.408494][ T254] dst_init+0x84/0x4a0 [ 4242.408494][ T254] dst_alloc+0x97/0x150 [ 4242.408494][ T254] ip6_dst_alloc+0x23/0x90 [ 4242.408494][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4242.408494][ T254] ip6_pol_route+0x56f/0x840 [ 4242.408494][ T254] fib6_rule_lookup+0x334/0x630 [ 4242.408494][ T254] ip6_route_output_flags+0x259/0x480 [ 4242.408494][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4242.408494][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4242.408494][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.408494][ T254] netlink_unicast+0x449/0x710 [ 4242.408494][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.408494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.408494][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.408494][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.408494][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.408494][ T254] [ 4242.411311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.411311][ T254] netdev_get_by_index+0x5e/0x80 [ 4242.411311][ T254] fib6_nh_init+0x3d8/0x1580 [ 4242.411311][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4242.411311][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4242.411311][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4242.411311][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4242.411311][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4242.411311][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4242.411311][ T254] addrconf_dad_begin+0x310/0x670 [ 4242.411311][ T254] addrconf_dad_work+0x10b/0xab0 [ 4242.411311][ T254] process_one_work+0x84d/0x18a0 [ 4242.411311][ T254] worker_thread+0x587/0xd30 [ 4242.411311][ T254] kthread+0x28a/0x350 [ 4242.411311][ T254] ret_from_fork+0x31/0x70 [ 4242.411311][ T254] ret_from_fork_asm+0x1a/0x30 [ 4242.411311][ T254] [ 4242.413693][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.413693][ T254] netdev_get_by_index+0x5e/0x80 [ 4242.413693][ T254] fib6_nh_init+0x3d8/0x1580 [ 4242.413693][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4242.413693][ T254] ip6_route_add+0x1c/0x140 [ 4242.413693][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4242.413693][ T254] inet6_addr_add+0x4f8/0xa40 [ 4242.413693][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4242.413693][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4242.413693][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.413693][ T254] netlink_unicast+0x449/0x710 [ 4242.413693][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.413693][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.413693][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.413693][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.413693][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.413693][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4242.413693][ T254] [ 4242.416195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.416195][ T254] netdev_get_by_index+0x5e/0x80 [ 4242.416195][ T254] fib6_nh_init+0x3d8/0x1580 [ 4242.416195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4242.416195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4242.416195][ T254] ipv6_add_addr+0x411/0x2000 [ 4242.416195][ T254] inet6_addr_add+0x30e/0xa40 [ 4242.416195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4242.416195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4242.416195][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.416195][ T254] netlink_unicast+0x449/0x710 [ 4242.416195][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.416195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.416195][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.416195][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.416195][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.416195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4242.416195][ T254] [ 4242.418674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.418674][ T254] netdev_get_by_index+0x5e/0x80 [ 4242.418674][ T254] fib6_nh_init+0x3d8/0x1580 [ 4242.418674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4242.418674][ T254] ip6_route_add+0x1c/0x140 [ 4242.418674][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4242.418674][ T254] addrconf_add_dev+0xe2/0x170 [ 4242.418674][ T254] inet6_addr_add+0x12f/0xa40 [ 4242.418674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4242.418674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4242.418674][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.418674][ T254] netlink_unicast+0x449/0x710 [ 4242.418674][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.418674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.418674][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.418674][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.418674][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.418674][ T254] [ 4242.421103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.421103][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4242.421103][ T254] ipv6_find_idev+0x102/0x170 [ 4242.421103][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4242.421103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4242.421103][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.421103][ T254] netlink_unicast+0x449/0x710 [ 4242.421103][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.421103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.421103][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.421103][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.421103][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.421103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4242.421103][ T254] [ 4242.423003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4242.423003][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4242.423003][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4242.423003][ T254] ipv6_find_idev+0x102/0x170 [ 4242.423003][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4242.423003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4242.423003][ T254] netlink_rcv_skb+0x130/0x360 [ 4242.423003][ T254] netlink_unicast+0x449/0x710 [ 4242.423003][ T254] netlink_sendmsg+0x723/0xbe0 [ 4242.423003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4242.423003][ T254] ___sys_sendmsg+0xee/0x170 [ 4242.423003][ T254] __sys_sendmsg+0xcd/0x170 [ 4242.423003][ T254] do_syscall_64+0xc6/0x1e0 [ 4242.423003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4242.423003][ T254] [ 4252.535870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4252.536433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.536433][ T254] dst_init+0x84/0x4a0 [ 4252.536433][ T254] dst_alloc+0x97/0x150 [ 4252.536433][ T254] ip6_dst_alloc+0x23/0x90 [ 4252.536433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4252.536433][ T254] ip6_pol_route+0x56f/0x840 [ 4252.536433][ T254] fib6_rule_lookup+0x334/0x630 [ 4252.536433][ T254] ip6_route_output_flags+0x259/0x480 [ 4252.536433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4252.536433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4252.536433][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.536433][ T254] netlink_unicast+0x449/0x710 [ 4252.536433][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.536433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.536433][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.536433][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.536433][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.536433][ T254] [ 4252.539267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.539267][ T254] netdev_get_by_index+0x5e/0x80 [ 4252.539267][ T254] fib6_nh_init+0x3d8/0x1580 [ 4252.539267][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4252.539267][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4252.539267][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4252.539267][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4252.539267][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4252.539267][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4252.539267][ T254] addrconf_dad_begin+0x310/0x670 [ 4252.539267][ T254] addrconf_dad_work+0x10b/0xab0 [ 4252.539267][ T254] process_one_work+0x84d/0x18a0 [ 4252.539267][ T254] worker_thread+0x587/0xd30 [ 4252.539267][ T254] kthread+0x28a/0x350 [ 4252.539267][ T254] ret_from_fork+0x31/0x70 [ 4252.539267][ T254] ret_from_fork_asm+0x1a/0x30 [ 4252.539267][ T254] [ 4252.542169][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.542169][ T254] netdev_get_by_index+0x5e/0x80 [ 4252.542169][ T254] fib6_nh_init+0x3d8/0x1580 [ 4252.542169][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4252.542169][ T254] ip6_route_add+0x1c/0x140 [ 4252.542169][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4252.542169][ T254] inet6_addr_add+0x4f8/0xa40 [ 4252.542169][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4252.542169][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4252.542169][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.542169][ T254] netlink_unicast+0x449/0x710 [ 4252.542169][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.542169][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.542169][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.542169][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.542169][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.542169][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4252.542169][ T254] [ 4252.544646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.544646][ T254] netdev_get_by_index+0x5e/0x80 [ 4252.544646][ T254] fib6_nh_init+0x3d8/0x1580 [ 4252.544646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4252.544646][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4252.544646][ T254] ipv6_add_addr+0x411/0x2000 [ 4252.544646][ T254] inet6_addr_add+0x30e/0xa40 [ 4252.544646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4252.544646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4252.544646][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.544646][ T254] netlink_unicast+0x449/0x710 [ 4252.544646][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.544646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.544646][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.544646][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.544646][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.544646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4252.544646][ T254] [ 4252.547505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.547505][ T254] netdev_get_by_index+0x5e/0x80 [ 4252.547505][ T254] fib6_nh_init+0x3d8/0x1580 [ 4252.547505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4252.547505][ T254] ip6_route_add+0x1c/0x140 [ 4252.547505][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4252.547505][ T254] addrconf_add_dev+0xe2/0x170 [ 4252.547505][ T254] inet6_addr_add+0x12f/0xa40 [ 4252.547505][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4252.547505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4252.547505][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.547505][ T254] netlink_unicast+0x449/0x710 [ 4252.547505][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.547505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.547505][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.547505][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.547505][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.547505][ T254] [ 4252.549949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.549949][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4252.549949][ T254] ipv6_find_idev+0x102/0x170 [ 4252.549949][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4252.549949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4252.549949][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.549949][ T254] netlink_unicast+0x449/0x710 [ 4252.549949][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.549949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.549949][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.549949][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.549949][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.549949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4252.549949][ T254] [ 4252.551863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4252.551863][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4252.551863][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4252.551863][ T254] ipv6_find_idev+0x102/0x170 [ 4252.551863][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4252.551863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4252.551863][ T254] netlink_rcv_skb+0x130/0x360 [ 4252.551863][ T254] netlink_unicast+0x449/0x710 [ 4252.551863][ T254] netlink_sendmsg+0x723/0xbe0 [ 4252.551863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4252.551863][ T254] ___sys_sendmsg+0xee/0x170 [ 4252.551863][ T254] __sys_sendmsg+0xcd/0x170 [ 4252.551863][ T254] do_syscall_64+0xc6/0x1e0 [ 4252.551863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4252.551863][ T254] [ 4262.791839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4262.792471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.792471][ T254] dst_init+0x84/0x4a0 [ 4262.792471][ T254] dst_alloc+0x97/0x150 [ 4262.792471][ T254] ip6_dst_alloc+0x23/0x90 [ 4262.792471][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4262.792471][ T254] ip6_pol_route+0x56f/0x840 [ 4262.792471][ T254] fib6_rule_lookup+0x334/0x630 [ 4262.792471][ T254] ip6_route_output_flags+0x259/0x480 [ 4262.792471][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4262.792471][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4262.792471][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.792471][ T254] netlink_unicast+0x449/0x710 [ 4262.792471][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.792471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.792471][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.792471][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.792471][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.792471][ T254] [ 4262.795599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.795599][ T254] netdev_get_by_index+0x5e/0x80 [ 4262.795599][ T254] fib6_nh_init+0x3d8/0x1580 [ 4262.795599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4262.795599][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4262.795599][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4262.795599][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4262.795599][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4262.795599][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4262.795599][ T254] addrconf_dad_begin+0x310/0x670 [ 4262.795599][ T254] addrconf_dad_work+0x10b/0xab0 [ 4262.795599][ T254] process_one_work+0x84d/0x18a0 [ 4262.795599][ T254] worker_thread+0x587/0xd30 [ 4262.795599][ T254] kthread+0x28a/0x350 [ 4262.795599][ T254] ret_from_fork+0x31/0x70 [ 4262.795599][ T254] ret_from_fork_asm+0x1a/0x30 [ 4262.795599][ T254] [ 4262.798703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.798703][ T254] netdev_get_by_index+0x5e/0x80 [ 4262.798703][ T254] fib6_nh_init+0x3d8/0x1580 [ 4262.798703][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4262.798703][ T254] ip6_route_add+0x1c/0x140 [ 4262.798703][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4262.798703][ T254] inet6_addr_add+0x4f8/0xa40 [ 4262.798703][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4262.798703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4262.798703][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.798703][ T254] netlink_unicast+0x449/0x710 [ 4262.798703][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.798703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.798703][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.798703][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.798703][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.798703][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4262.798703][ T254] [ 4262.801899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.801899][ T254] netdev_get_by_index+0x5e/0x80 [ 4262.801899][ T254] fib6_nh_init+0x3d8/0x1580 [ 4262.801899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4262.801899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4262.801899][ T254] ipv6_add_addr+0x411/0x2000 [ 4262.801899][ T254] inet6_addr_add+0x30e/0xa40 [ 4262.801899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4262.801899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4262.801899][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.801899][ T254] netlink_unicast+0x449/0x710 [ 4262.801899][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.801899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.801899][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.801899][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.801899][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.801899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4262.801899][ T254] [ 4262.805099][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.805099][ T254] netdev_get_by_index+0x5e/0x80 [ 4262.805099][ T254] fib6_nh_init+0x3d8/0x1580 [ 4262.805099][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4262.805099][ T254] ip6_route_add+0x1c/0x140 [ 4262.805099][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4262.805099][ T254] addrconf_add_dev+0xe2/0x170 [ 4262.805099][ T254] inet6_addr_add+0x12f/0xa40 [ 4262.805099][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4262.805099][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4262.805099][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.805099][ T254] netlink_unicast+0x449/0x710 [ 4262.805099][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.805099][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.805099][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.805099][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.805099][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.805099][ T254] [ 4262.808263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.808263][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4262.808263][ T254] ipv6_find_idev+0x102/0x170 [ 4262.808263][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4262.808263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4262.808263][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.808263][ T254] netlink_unicast+0x449/0x710 [ 4262.808263][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.808263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.808263][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.808263][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.808263][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.808263][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4262.808263][ T254] [ 4262.810697][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4262.810697][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4262.810697][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4262.810697][ T254] ipv6_find_idev+0x102/0x170 [ 4262.810697][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4262.810697][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4262.810697][ T254] netlink_rcv_skb+0x130/0x360 [ 4262.810697][ T254] netlink_unicast+0x449/0x710 [ 4262.810697][ T254] netlink_sendmsg+0x723/0xbe0 [ 4262.810697][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4262.810697][ T254] ___sys_sendmsg+0xee/0x170 [ 4262.810697][ T254] __sys_sendmsg+0xcd/0x170 [ 4262.810697][ T254] do_syscall_64+0xc6/0x1e0 [ 4262.810697][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4262.810697][ T254] [ 4272.887839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4272.888486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.888486][ T254] dst_init+0x84/0x4a0 [ 4272.888486][ T254] dst_alloc+0x97/0x150 [ 4272.888486][ T254] ip6_dst_alloc+0x23/0x90 [ 4272.888486][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4272.888486][ T254] ip6_pol_route+0x56f/0x840 [ 4272.888486][ T254] fib6_rule_lookup+0x334/0x630 [ 4272.888486][ T254] ip6_route_output_flags+0x259/0x480 [ 4272.888486][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4272.888486][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4272.888486][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.888486][ T254] netlink_unicast+0x449/0x710 [ 4272.888486][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.888486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.888486][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.888486][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.888486][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.888486][ T254] [ 4272.891062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.891062][ T254] netdev_get_by_index+0x5e/0x80 [ 4272.891062][ T254] fib6_nh_init+0x3d8/0x1580 [ 4272.891062][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4272.891062][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4272.891062][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4272.891062][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4272.891062][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4272.891062][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4272.891062][ T254] addrconf_dad_begin+0x310/0x670 [ 4272.891062][ T254] addrconf_dad_work+0x10b/0xab0 [ 4272.891062][ T254] process_one_work+0x84d/0x18a0 [ 4272.891062][ T254] worker_thread+0x587/0xd30 [ 4272.891062][ T254] kthread+0x28a/0x350 [ 4272.891062][ T254] ret_from_fork+0x31/0x70 [ 4272.891062][ T254] ret_from_fork_asm+0x1a/0x30 [ 4272.891062][ T254] [ 4272.893493][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.893493][ T254] netdev_get_by_index+0x5e/0x80 [ 4272.893493][ T254] fib6_nh_init+0x3d8/0x1580 [ 4272.893493][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4272.893493][ T254] ip6_route_add+0x1c/0x140 [ 4272.893493][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4272.893493][ T254] inet6_addr_add+0x4f8/0xa40 [ 4272.893493][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4272.893493][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4272.893493][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.893493][ T254] netlink_unicast+0x449/0x710 [ 4272.893493][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.893493][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.893493][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.893493][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.893493][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.893493][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4272.893493][ T254] [ 4272.896015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.896015][ T254] netdev_get_by_index+0x5e/0x80 [ 4272.896015][ T254] fib6_nh_init+0x3d8/0x1580 [ 4272.896015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4272.896015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4272.896015][ T254] ipv6_add_addr+0x411/0x2000 [ 4272.896015][ T254] inet6_addr_add+0x30e/0xa40 [ 4272.896015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4272.896015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4272.896015][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.896015][ T254] netlink_unicast+0x449/0x710 [ 4272.896015][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.896015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.896015][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.896015][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.896015][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.896015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4272.896015][ T254] [ 4272.898546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.898546][ T254] netdev_get_by_index+0x5e/0x80 [ 4272.898546][ T254] fib6_nh_init+0x3d8/0x1580 [ 4272.898546][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4272.898546][ T254] ip6_route_add+0x1c/0x140 [ 4272.898546][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4272.898546][ T254] addrconf_add_dev+0xe2/0x170 [ 4272.898546][ T254] inet6_addr_add+0x12f/0xa40 [ 4272.898546][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4272.898546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4272.898546][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.898546][ T254] netlink_unicast+0x449/0x710 [ 4272.898546][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.898546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.898546][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.898546][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.898546][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.898546][ T254] [ 4272.901030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.901030][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4272.901030][ T254] ipv6_find_idev+0x102/0x170 [ 4272.901030][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4272.901030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4272.901030][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.901030][ T254] netlink_unicast+0x449/0x710 [ 4272.901030][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.901030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.901030][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.901030][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.901030][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.901030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4272.901030][ T254] [ 4272.902986][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4272.902986][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4272.902986][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4272.902986][ T254] ipv6_find_idev+0x102/0x170 [ 4272.902986][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4272.902986][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4272.902986][ T254] netlink_rcv_skb+0x130/0x360 [ 4272.902986][ T254] netlink_unicast+0x449/0x710 [ 4272.902986][ T254] netlink_sendmsg+0x723/0xbe0 [ 4272.902986][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4272.902986][ T254] ___sys_sendmsg+0xee/0x170 [ 4272.902986][ T254] __sys_sendmsg+0xcd/0x170 [ 4272.902986][ T254] do_syscall_64+0xc6/0x1e0 [ 4272.902986][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4272.902986][ T254] [ 4283.143784][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4283.144310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.144310][ T254] dst_init+0x84/0x4a0 [ 4283.144310][ T254] dst_alloc+0x97/0x150 [ 4283.144310][ T254] ip6_dst_alloc+0x23/0x90 [ 4283.144310][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4283.144310][ T254] ip6_pol_route+0x56f/0x840 [ 4283.144310][ T254] fib6_rule_lookup+0x334/0x630 [ 4283.144310][ T254] ip6_route_output_flags+0x259/0x480 [ 4283.144310][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4283.144310][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4283.144310][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.144310][ T254] netlink_unicast+0x449/0x710 [ 4283.144310][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.144310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.144310][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.144310][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.144310][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.144310][ T254] [ 4283.146777][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.146777][ T254] netdev_get_by_index+0x5e/0x80 [ 4283.146777][ T254] fib6_nh_init+0x3d8/0x1580 [ 4283.146777][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4283.146777][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4283.146777][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4283.146777][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4283.146777][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4283.146777][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4283.146777][ T254] addrconf_dad_begin+0x310/0x670 [ 4283.146777][ T254] addrconf_dad_work+0x10b/0xab0 [ 4283.146777][ T254] process_one_work+0x84d/0x18a0 [ 4283.146777][ T254] worker_thread+0x587/0xd30 [ 4283.146777][ T254] kthread+0x28a/0x350 [ 4283.146777][ T254] ret_from_fork+0x31/0x70 [ 4283.146777][ T254] ret_from_fork_asm+0x1a/0x30 [ 4283.146777][ T254] [ 4283.149770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.149770][ T254] netdev_get_by_index+0x5e/0x80 [ 4283.149770][ T254] fib6_nh_init+0x3d8/0x1580 [ 4283.149770][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4283.149770][ T254] ip6_route_add+0x1c/0x140 [ 4283.149770][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4283.149770][ T254] inet6_addr_add+0x4f8/0xa40 [ 4283.149770][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4283.149770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4283.149770][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.149770][ T254] netlink_unicast+0x449/0x710 [ 4283.149770][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.149770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.149770][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.149770][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.149770][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.149770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4283.149770][ T254] [ 4283.152956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.152956][ T254] netdev_get_by_index+0x5e/0x80 [ 4283.152956][ T254] fib6_nh_init+0x3d8/0x1580 [ 4283.152956][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4283.152956][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4283.152956][ T254] ipv6_add_addr+0x411/0x2000 [ 4283.152956][ T254] inet6_addr_add+0x30e/0xa40 [ 4283.152956][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4283.152956][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4283.152956][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.152956][ T254] netlink_unicast+0x449/0x710 [ 4283.152956][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.152956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.152956][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.152956][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.152956][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.152956][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4283.152956][ T254] [ 4283.155868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.155868][ T254] netdev_get_by_index+0x5e/0x80 [ 4283.155868][ T254] fib6_nh_init+0x3d8/0x1580 [ 4283.155868][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4283.155868][ T254] ip6_route_add+0x1c/0x140 [ 4283.155868][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4283.155868][ T254] addrconf_add_dev+0xe2/0x170 [ 4283.155868][ T254] inet6_addr_add+0x12f/0xa40 [ 4283.155868][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4283.155868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4283.155868][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.155868][ T254] netlink_unicast+0x449/0x710 [ 4283.155868][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.155868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.155868][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.155868][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.155868][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.155868][ T254] [ 4283.158383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.158383][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4283.158383][ T254] ipv6_find_idev+0x102/0x170 [ 4283.158383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4283.158383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4283.158383][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.158383][ T254] netlink_unicast+0x449/0x710 [ 4283.158383][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.158383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.158383][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.158383][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.158383][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.158383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4283.158383][ T254] [ 4283.160347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4283.160347][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4283.160347][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4283.160347][ T254] ipv6_find_idev+0x102/0x170 [ 4283.160347][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4283.160347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4283.160347][ T254] netlink_rcv_skb+0x130/0x360 [ 4283.160347][ T254] netlink_unicast+0x449/0x710 [ 4283.160347][ T254] netlink_sendmsg+0x723/0xbe0 [ 4283.160347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4283.160347][ T254] ___sys_sendmsg+0xee/0x170 [ 4283.160347][ T254] __sys_sendmsg+0xcd/0x170 [ 4283.160347][ T254] do_syscall_64+0xc6/0x1e0 [ 4283.160347][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4283.160347][ T254] [ 4293.399844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4293.400257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.400257][ T254] dst_init+0x84/0x4a0 [ 4293.400257][ T254] dst_alloc+0x97/0x150 [ 4293.400257][ T254] ip6_dst_alloc+0x23/0x90 [ 4293.400257][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4293.400257][ T254] ip6_pol_route+0x56f/0x840 [ 4293.400257][ T254] fib6_rule_lookup+0x334/0x630 [ 4293.400257][ T254] ip6_route_output_flags+0x259/0x480 [ 4293.400257][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4293.400257][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4293.400257][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.400257][ T254] netlink_unicast+0x449/0x710 [ 4293.400257][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.400257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.400257][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.400257][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.400257][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.400257][ T254] [ 4293.402449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.402449][ T254] netdev_get_by_index+0x5e/0x80 [ 4293.402449][ T254] fib6_nh_init+0x3d8/0x1580 [ 4293.402449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4293.402449][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4293.402449][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4293.402449][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4293.402449][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4293.402449][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4293.402449][ T254] addrconf_dad_begin+0x310/0x670 [ 4293.402449][ T254] addrconf_dad_work+0x10b/0xab0 [ 4293.402449][ T254] process_one_work+0x84d/0x18a0 [ 4293.402449][ T254] worker_thread+0x587/0xd30 [ 4293.402449][ T254] kthread+0x28a/0x350 [ 4293.402449][ T254] ret_from_fork+0x31/0x70 [ 4293.402449][ T254] ret_from_fork_asm+0x1a/0x30 [ 4293.402449][ T254] [ 4293.404589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.404589][ T254] netdev_get_by_index+0x5e/0x80 [ 4293.404589][ T254] fib6_nh_init+0x3d8/0x1580 [ 4293.404589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4293.404589][ T254] ip6_route_add+0x1c/0x140 [ 4293.404589][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4293.404589][ T254] inet6_addr_add+0x4f8/0xa40 [ 4293.404589][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4293.404589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4293.404589][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.404589][ T254] netlink_unicast+0x449/0x710 [ 4293.404589][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.404589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.404589][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.404589][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.404589][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.404589][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4293.404589][ T254] [ 4293.406841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.406841][ T254] netdev_get_by_index+0x5e/0x80 [ 4293.406841][ T254] fib6_nh_init+0x3d8/0x1580 [ 4293.406841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4293.406841][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4293.406841][ T254] ipv6_add_addr+0x411/0x2000 [ 4293.406841][ T254] inet6_addr_add+0x30e/0xa40 [ 4293.406841][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4293.406841][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4293.406841][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.406841][ T254] netlink_unicast+0x449/0x710 [ 4293.406841][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.406841][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.406841][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.406841][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.406841][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.406841][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4293.406841][ T254] [ 4293.409083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.409083][ T254] netdev_get_by_index+0x5e/0x80 [ 4293.409083][ T254] fib6_nh_init+0x3d8/0x1580 [ 4293.409083][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4293.409083][ T254] ip6_route_add+0x1c/0x140 [ 4293.409083][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4293.409083][ T254] addrconf_add_dev+0xe2/0x170 [ 4293.409083][ T254] inet6_addr_add+0x12f/0xa40 [ 4293.409083][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4293.409083][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4293.409083][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.409083][ T254] netlink_unicast+0x449/0x710 [ 4293.409083][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.409083][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.409083][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.409083][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.409083][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.409083][ T254] [ 4293.411280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.411280][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4293.411280][ T254] ipv6_find_idev+0x102/0x170 [ 4293.411280][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4293.411280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4293.411280][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.411280][ T254] netlink_unicast+0x449/0x710 [ 4293.411280][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.411280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.411280][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.411280][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.411280][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.411280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4293.411280][ T254] [ 4293.413002][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4293.413002][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4293.413002][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4293.413002][ T254] ipv6_find_idev+0x102/0x170 [ 4293.413002][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4293.413002][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4293.413002][ T254] netlink_rcv_skb+0x130/0x360 [ 4293.413002][ T254] netlink_unicast+0x449/0x710 [ 4293.413002][ T254] netlink_sendmsg+0x723/0xbe0 [ 4293.413002][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4293.413002][ T254] ___sys_sendmsg+0xee/0x170 [ 4293.413002][ T254] __sys_sendmsg+0xcd/0x170 [ 4293.413002][ T254] do_syscall_64+0xc6/0x1e0 [ 4293.413002][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4293.413002][ T254] [ 4303.447839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4303.448263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.448263][ T254] dst_init+0x84/0x4a0 [ 4303.448263][ T254] dst_alloc+0x97/0x150 [ 4303.448263][ T254] ip6_dst_alloc+0x23/0x90 [ 4303.448263][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4303.448263][ T254] ip6_pol_route+0x56f/0x840 [ 4303.448263][ T254] fib6_rule_lookup+0x334/0x630 [ 4303.448263][ T254] ip6_route_output_flags+0x259/0x480 [ 4303.448263][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4303.448263][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4303.448263][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.448263][ T254] netlink_unicast+0x449/0x710 [ 4303.448263][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.448263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.448263][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.448263][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.448263][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.448263][ T254] [ 4303.450453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.450453][ T254] netdev_get_by_index+0x5e/0x80 [ 4303.450453][ T254] fib6_nh_init+0x3d8/0x1580 [ 4303.450453][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4303.450453][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4303.450453][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4303.450453][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4303.450453][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4303.450453][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4303.450453][ T254] addrconf_dad_begin+0x310/0x670 [ 4303.450453][ T254] addrconf_dad_work+0x10b/0xab0 [ 4303.450453][ T254] process_one_work+0x84d/0x18a0 [ 4303.450453][ T254] worker_thread+0x587/0xd30 [ 4303.450453][ T254] kthread+0x28a/0x350 [ 4303.450453][ T254] ret_from_fork+0x31/0x70 [ 4303.450453][ T254] ret_from_fork_asm+0x1a/0x30 [ 4303.450453][ T254] [ 4303.452589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.452589][ T254] netdev_get_by_index+0x5e/0x80 [ 4303.452589][ T254] fib6_nh_init+0x3d8/0x1580 [ 4303.452589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4303.452589][ T254] ip6_route_add+0x1c/0x140 [ 4303.452589][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4303.452589][ T254] inet6_addr_add+0x4f8/0xa40 [ 4303.452589][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4303.452589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4303.452589][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.452589][ T254] netlink_unicast+0x449/0x710 [ 4303.452589][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.452589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.452589][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.452589][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.452589][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.452589][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4303.452589][ T254] [ 4303.454841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.454841][ T254] netdev_get_by_index+0x5e/0x80 [ 4303.454841][ T254] fib6_nh_init+0x3d8/0x1580 [ 4303.454841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4303.454841][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4303.454841][ T254] ipv6_add_addr+0x411/0x2000 [ 4303.454841][ T254] inet6_addr_add+0x30e/0xa40 [ 4303.454841][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4303.454841][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4303.454841][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.454841][ T254] netlink_unicast+0x449/0x710 [ 4303.454841][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.454841][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.454841][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.454841][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.454841][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.454841][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4303.454841][ T254] [ 4303.457085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.457085][ T254] netdev_get_by_index+0x5e/0x80 [ 4303.457085][ T254] fib6_nh_init+0x3d8/0x1580 [ 4303.457085][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4303.457085][ T254] ip6_route_add+0x1c/0x140 [ 4303.457085][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4303.457085][ T254] addrconf_add_dev+0xe2/0x170 [ 4303.457085][ T254] inet6_addr_add+0x12f/0xa40 [ 4303.457085][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4303.457085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4303.457085][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.457085][ T254] netlink_unicast+0x449/0x710 [ 4303.457085][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.457085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.457085][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.457085][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.457085][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.457085][ T254] [ 4303.459274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.459274][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4303.459274][ T254] ipv6_find_idev+0x102/0x170 [ 4303.459274][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4303.459274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4303.459274][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.459274][ T254] netlink_unicast+0x449/0x710 [ 4303.459274][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.459274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.459274][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.459274][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.459274][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.459274][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4303.459274][ T254] [ 4303.460993][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4303.460993][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4303.460993][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4303.460993][ T254] ipv6_find_idev+0x102/0x170 [ 4303.460993][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4303.460993][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4303.460993][ T254] netlink_rcv_skb+0x130/0x360 [ 4303.460993][ T254] netlink_unicast+0x449/0x710 [ 4303.460993][ T254] netlink_sendmsg+0x723/0xbe0 [ 4303.460993][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4303.460993][ T254] ___sys_sendmsg+0xee/0x170 [ 4303.460993][ T254] __sys_sendmsg+0xcd/0x170 [ 4303.460993][ T254] do_syscall_64+0xc6/0x1e0 [ 4303.460993][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4303.460993][ T254] [ 4313.551868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4313.552338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.552338][ T254] dst_init+0x84/0x4a0 [ 4313.552338][ T254] dst_alloc+0x97/0x150 [ 4313.552338][ T254] ip6_dst_alloc+0x23/0x90 [ 4313.552338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4313.552338][ T254] ip6_pol_route+0x56f/0x840 [ 4313.552338][ T254] fib6_rule_lookup+0x334/0x630 [ 4313.552338][ T254] ip6_route_output_flags+0x259/0x480 [ 4313.552338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4313.552338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4313.552338][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.552338][ T254] netlink_unicast+0x449/0x710 [ 4313.552338][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.552338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.552338][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.552338][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.552338][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.552338][ T254] [ 4313.554523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.554523][ T254] netdev_get_by_index+0x5e/0x80 [ 4313.554523][ T254] fib6_nh_init+0x3d8/0x1580 [ 4313.554523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4313.554523][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4313.554523][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4313.554523][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4313.554523][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4313.554523][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4313.554523][ T254] addrconf_dad_begin+0x310/0x670 [ 4313.554523][ T254] addrconf_dad_work+0x10b/0xab0 [ 4313.554523][ T254] process_one_work+0x84d/0x18a0 [ 4313.554523][ T254] worker_thread+0x587/0xd30 [ 4313.554523][ T254] kthread+0x28a/0x350 [ 4313.554523][ T254] ret_from_fork+0x31/0x70 [ 4313.554523][ T254] ret_from_fork_asm+0x1a/0x30 [ 4313.554523][ T254] [ 4313.556667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.556667][ T254] netdev_get_by_index+0x5e/0x80 [ 4313.556667][ T254] fib6_nh_init+0x3d8/0x1580 [ 4313.556667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4313.556667][ T254] ip6_route_add+0x1c/0x140 [ 4313.556667][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4313.556667][ T254] inet6_addr_add+0x4f8/0xa40 [ 4313.556667][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4313.556667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4313.556667][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.556667][ T254] netlink_unicast+0x449/0x710 [ 4313.556667][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.556667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.556667][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.556667][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.556667][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.556667][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4313.556667][ T254] [ 4313.558914][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.558914][ T254] netdev_get_by_index+0x5e/0x80 [ 4313.558914][ T254] fib6_nh_init+0x3d8/0x1580 [ 4313.558914][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4313.558914][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4313.558914][ T254] ipv6_add_addr+0x411/0x2000 [ 4313.558914][ T254] inet6_addr_add+0x30e/0xa40 [ 4313.558914][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4313.558914][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4313.558914][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.558914][ T254] netlink_unicast+0x449/0x710 [ 4313.558914][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.558914][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.558914][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.558914][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.558914][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.558914][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4313.558914][ T254] [ 4313.561154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.561154][ T254] netdev_get_by_index+0x5e/0x80 [ 4313.561154][ T254] fib6_nh_init+0x3d8/0x1580 [ 4313.561154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4313.561154][ T254] ip6_route_add+0x1c/0x140 [ 4313.561154][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4313.561154][ T254] addrconf_add_dev+0xe2/0x170 [ 4313.561154][ T254] inet6_addr_add+0x12f/0xa40 [ 4313.561154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4313.561154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4313.561154][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.561154][ T254] netlink_unicast+0x449/0x710 [ 4313.561154][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.561154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.561154][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.561154][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.561154][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.561154][ T254] [ 4313.563386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.563386][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4313.563386][ T254] ipv6_find_idev+0x102/0x170 [ 4313.563386][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4313.563386][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4313.563386][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.563386][ T254] netlink_unicast+0x449/0x710 [ 4313.563386][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.563386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.563386][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.563386][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.563386][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.563386][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4313.563386][ T254] [ 4313.565118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4313.565118][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4313.565118][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4313.565118][ T254] ipv6_find_idev+0x102/0x170 [ 4313.565118][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4313.565118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4313.565118][ T254] netlink_rcv_skb+0x130/0x360 [ 4313.565118][ T254] netlink_unicast+0x449/0x710 [ 4313.565118][ T254] netlink_sendmsg+0x723/0xbe0 [ 4313.565118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4313.565118][ T254] ___sys_sendmsg+0xee/0x170 [ 4313.565118][ T254] __sys_sendmsg+0xcd/0x170 [ 4313.565118][ T254] do_syscall_64+0xc6/0x1e0 [ 4313.565118][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4313.565118][ T254] [ 4323.615839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4323.616318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.616318][ T254] dst_init+0x84/0x4a0 [ 4323.616318][ T254] dst_alloc+0x97/0x150 [ 4323.616318][ T254] ip6_dst_alloc+0x23/0x90 [ 4323.616318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4323.616318][ T254] ip6_pol_route+0x56f/0x840 [ 4323.616318][ T254] fib6_rule_lookup+0x334/0x630 [ 4323.616318][ T254] ip6_route_output_flags+0x259/0x480 [ 4323.616318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4323.616318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4323.616318][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.616318][ T254] netlink_unicast+0x449/0x710 [ 4323.616318][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.616318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.616318][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.616318][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.616318][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.616318][ T254] [ 4323.618520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.618520][ T254] netdev_get_by_index+0x5e/0x80 [ 4323.618520][ T254] fib6_nh_init+0x3d8/0x1580 [ 4323.618520][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4323.618520][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4323.618520][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4323.618520][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4323.618520][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4323.618520][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4323.618520][ T254] addrconf_dad_begin+0x310/0x670 [ 4323.618520][ T254] addrconf_dad_work+0x10b/0xab0 [ 4323.618520][ T254] process_one_work+0x84d/0x18a0 [ 4323.618520][ T254] worker_thread+0x587/0xd30 [ 4323.618520][ T254] kthread+0x28a/0x350 [ 4323.618520][ T254] ret_from_fork+0x31/0x70 [ 4323.618520][ T254] ret_from_fork_asm+0x1a/0x30 [ 4323.618520][ T254] [ 4323.620655][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.620655][ T254] netdev_get_by_index+0x5e/0x80 [ 4323.620655][ T254] fib6_nh_init+0x3d8/0x1580 [ 4323.620655][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4323.620655][ T254] ip6_route_add+0x1c/0x140 [ 4323.620655][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4323.620655][ T254] inet6_addr_add+0x4f8/0xa40 [ 4323.620655][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4323.620655][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4323.620655][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.620655][ T254] netlink_unicast+0x449/0x710 [ 4323.620655][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.620655][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.620655][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.620655][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.620655][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.620655][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4323.620655][ T254] [ 4323.622902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.622902][ T254] netdev_get_by_index+0x5e/0x80 [ 4323.622902][ T254] fib6_nh_init+0x3d8/0x1580 [ 4323.622902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4323.622902][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4323.622902][ T254] ipv6_add_addr+0x411/0x2000 [ 4323.622902][ T254] inet6_addr_add+0x30e/0xa40 [ 4323.622902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4323.622902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4323.622902][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.622902][ T254] netlink_unicast+0x449/0x710 [ 4323.622902][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.622902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.622902][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.622902][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.622902][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.622902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4323.622902][ T254] [ 4323.625133][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.625133][ T254] netdev_get_by_index+0x5e/0x80 [ 4323.625133][ T254] fib6_nh_init+0x3d8/0x1580 [ 4323.625133][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4323.625133][ T254] ip6_route_add+0x1c/0x140 [ 4323.625133][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4323.625133][ T254] addrconf_add_dev+0xe2/0x170 [ 4323.625133][ T254] inet6_addr_add+0x12f/0xa40 [ 4323.625133][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4323.625133][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4323.625133][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.625133][ T254] netlink_unicast+0x449/0x710 [ 4323.625133][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.625133][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.625133][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.625133][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.625133][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.625133][ T254] [ 4323.627359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.627359][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4323.627359][ T254] ipv6_find_idev+0x102/0x170 [ 4323.627359][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4323.627359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4323.627359][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.627359][ T254] netlink_unicast+0x449/0x710 [ 4323.627359][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.627359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.627359][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.627359][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.627359][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.627359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4323.627359][ T254] [ 4323.629080][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4323.629080][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4323.629080][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4323.629080][ T254] ipv6_find_idev+0x102/0x170 [ 4323.629080][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4323.629080][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4323.629080][ T254] netlink_rcv_skb+0x130/0x360 [ 4323.629080][ T254] netlink_unicast+0x449/0x710 [ 4323.629080][ T254] netlink_sendmsg+0x723/0xbe0 [ 4323.629080][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4323.629080][ T254] ___sys_sendmsg+0xee/0x170 [ 4323.629080][ T254] __sys_sendmsg+0xcd/0x170 [ 4323.629080][ T254] do_syscall_64+0xc6/0x1e0 [ 4323.629080][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4323.629080][ T254] [ 4333.871844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4333.872307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.872307][ T254] dst_init+0x84/0x4a0 [ 4333.872307][ T254] dst_alloc+0x97/0x150 [ 4333.872307][ T254] ip6_dst_alloc+0x23/0x90 [ 4333.872307][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4333.872307][ T254] ip6_pol_route+0x56f/0x840 [ 4333.872307][ T254] fib6_rule_lookup+0x334/0x630 [ 4333.872307][ T254] ip6_route_output_flags+0x259/0x480 [ 4333.872307][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4333.872307][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4333.872307][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.872307][ T254] netlink_unicast+0x449/0x710 [ 4333.872307][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.872307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.872307][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.872307][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.872307][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.872307][ T254] [ 4333.874501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.874501][ T254] netdev_get_by_index+0x5e/0x80 [ 4333.874501][ T254] fib6_nh_init+0x3d8/0x1580 [ 4333.874501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4333.874501][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4333.874501][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4333.874501][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4333.874501][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4333.874501][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4333.874501][ T254] addrconf_dad_begin+0x310/0x670 [ 4333.874501][ T254] addrconf_dad_work+0x10b/0xab0 [ 4333.874501][ T254] process_one_work+0x84d/0x18a0 [ 4333.874501][ T254] worker_thread+0x587/0xd30 [ 4333.874501][ T254] kthread+0x28a/0x350 [ 4333.874501][ T254] ret_from_fork+0x31/0x70 [ 4333.874501][ T254] ret_from_fork_asm+0x1a/0x30 [ 4333.874501][ T254] [ 4333.876641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.876641][ T254] netdev_get_by_index+0x5e/0x80 [ 4333.876641][ T254] fib6_nh_init+0x3d8/0x1580 [ 4333.876641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4333.876641][ T254] ip6_route_add+0x1c/0x140 [ 4333.876641][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4333.876641][ T254] inet6_addr_add+0x4f8/0xa40 [ 4333.876641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4333.876641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4333.876641][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.876641][ T254] netlink_unicast+0x449/0x710 [ 4333.876641][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.876641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.876641][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.876641][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.876641][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.876641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4333.876641][ T254] [ 4333.878899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.878899][ T254] netdev_get_by_index+0x5e/0x80 [ 4333.878899][ T254] fib6_nh_init+0x3d8/0x1580 [ 4333.878899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4333.878899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4333.878899][ T254] ipv6_add_addr+0x411/0x2000 [ 4333.878899][ T254] inet6_addr_add+0x30e/0xa40 [ 4333.878899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4333.878899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4333.878899][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.878899][ T254] netlink_unicast+0x449/0x710 [ 4333.878899][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.878899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.878899][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.878899][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.878899][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.878899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4333.878899][ T254] [ 4333.881136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.881136][ T254] netdev_get_by_index+0x5e/0x80 [ 4333.881136][ T254] fib6_nh_init+0x3d8/0x1580 [ 4333.881136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4333.881136][ T254] ip6_route_add+0x1c/0x140 [ 4333.881136][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4333.881136][ T254] addrconf_add_dev+0xe2/0x170 [ 4333.881136][ T254] inet6_addr_add+0x12f/0xa40 [ 4333.881136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4333.881136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4333.881136][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.881136][ T254] netlink_unicast+0x449/0x710 [ 4333.881136][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.881136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.881136][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.881136][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.881136][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.881136][ T254] [ 4333.883348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.883348][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4333.883348][ T254] ipv6_find_idev+0x102/0x170 [ 4333.883348][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4333.883348][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4333.883348][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.883348][ T254] netlink_unicast+0x449/0x710 [ 4333.883348][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.883348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.883348][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.883348][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.883348][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.883348][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4333.883348][ T254] [ 4333.885068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4333.885068][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4333.885068][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4333.885068][ T254] ipv6_find_idev+0x102/0x170 [ 4333.885068][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4333.885068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4333.885068][ T254] netlink_rcv_skb+0x130/0x360 [ 4333.885068][ T254] netlink_unicast+0x449/0x710 [ 4333.885068][ T254] netlink_sendmsg+0x723/0xbe0 [ 4333.885068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4333.885068][ T254] ___sys_sendmsg+0xee/0x170 [ 4333.885068][ T254] __sys_sendmsg+0xcd/0x170 [ 4333.885068][ T254] do_syscall_64+0xc6/0x1e0 [ 4333.885068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4333.885068][ T254] [ 4344.127846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4344.128327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.128327][ T254] dst_init+0x84/0x4a0 [ 4344.128327][ T254] dst_alloc+0x97/0x150 [ 4344.128327][ T254] ip6_dst_alloc+0x23/0x90 [ 4344.128327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4344.128327][ T254] ip6_pol_route+0x56f/0x840 [ 4344.128327][ T254] fib6_rule_lookup+0x334/0x630 [ 4344.128327][ T254] ip6_route_output_flags+0x259/0x480 [ 4344.128327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4344.128327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4344.128327][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.128327][ T254] netlink_unicast+0x449/0x710 [ 4344.128327][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.128327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.128327][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.128327][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.128327][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.128327][ T254] [ 4344.130506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.130506][ T254] netdev_get_by_index+0x5e/0x80 [ 4344.130506][ T254] fib6_nh_init+0x3d8/0x1580 [ 4344.130506][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4344.130506][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4344.130506][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4344.130506][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4344.130506][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4344.130506][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4344.130506][ T254] addrconf_dad_begin+0x310/0x670 [ 4344.130506][ T254] addrconf_dad_work+0x10b/0xab0 [ 4344.130506][ T254] process_one_work+0x84d/0x18a0 [ 4344.130506][ T254] worker_thread+0x587/0xd30 [ 4344.130506][ T254] kthread+0x28a/0x350 [ 4344.130506][ T254] ret_from_fork+0x31/0x70 [ 4344.130506][ T254] ret_from_fork_asm+0x1a/0x30 [ 4344.130506][ T254] [ 4344.132663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.132663][ T254] netdev_get_by_index+0x5e/0x80 [ 4344.132663][ T254] fib6_nh_init+0x3d8/0x1580 [ 4344.132663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4344.132663][ T254] ip6_route_add+0x1c/0x140 [ 4344.132663][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4344.132663][ T254] inet6_addr_add+0x4f8/0xa40 [ 4344.132663][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4344.132663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4344.132663][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.132663][ T254] netlink_unicast+0x449/0x710 [ 4344.132663][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.132663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.132663][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.132663][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.132663][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.132663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4344.132663][ T254] [ 4344.134902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.134902][ T254] netdev_get_by_index+0x5e/0x80 [ 4344.134902][ T254] fib6_nh_init+0x3d8/0x1580 [ 4344.134902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4344.134902][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4344.134902][ T254] ipv6_add_addr+0x411/0x2000 [ 4344.134902][ T254] inet6_addr_add+0x30e/0xa40 [ 4344.134902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4344.134902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4344.134902][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.134902][ T254] netlink_unicast+0x449/0x710 [ 4344.134902][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.134902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.134902][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.134902][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.134902][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.134902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4344.134902][ T254] [ 4344.137151][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.137151][ T254] netdev_get_by_index+0x5e/0x80 [ 4344.137151][ T254] fib6_nh_init+0x3d8/0x1580 [ 4344.137151][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4344.137151][ T254] ip6_route_add+0x1c/0x140 [ 4344.137151][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4344.137151][ T254] addrconf_add_dev+0xe2/0x170 [ 4344.137151][ T254] inet6_addr_add+0x12f/0xa40 [ 4344.137151][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4344.137151][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4344.137151][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.137151][ T254] netlink_unicast+0x449/0x710 [ 4344.137151][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.137151][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.137151][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.137151][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.137151][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.137151][ T254] [ 4344.139360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.139360][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4344.139360][ T254] ipv6_find_idev+0x102/0x170 [ 4344.139360][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4344.139360][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4344.139360][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.139360][ T254] netlink_unicast+0x449/0x710 [ 4344.139360][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.139360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.139360][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.139360][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.139360][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.139360][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4344.139360][ T254] [ 4344.141084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4344.141084][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4344.141084][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4344.141084][ T254] ipv6_find_idev+0x102/0x170 [ 4344.141084][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4344.141084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4344.141084][ T254] netlink_rcv_skb+0x130/0x360 [ 4344.141084][ T254] netlink_unicast+0x449/0x710 [ 4344.141084][ T254] netlink_sendmsg+0x723/0xbe0 [ 4344.141084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4344.141084][ T254] ___sys_sendmsg+0xee/0x170 [ 4344.141084][ T254] __sys_sendmsg+0xcd/0x170 [ 4344.141084][ T254] do_syscall_64+0xc6/0x1e0 [ 4344.141084][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4344.141084][ T254] [ 4354.175846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4354.176317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.176317][ T254] dst_init+0x84/0x4a0 [ 4354.176317][ T254] dst_alloc+0x97/0x150 [ 4354.176317][ T254] ip6_dst_alloc+0x23/0x90 [ 4354.176317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4354.176317][ T254] ip6_pol_route+0x56f/0x840 [ 4354.176317][ T254] fib6_rule_lookup+0x334/0x630 [ 4354.176317][ T254] ip6_route_output_flags+0x259/0x480 [ 4354.176317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4354.176317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4354.176317][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.176317][ T254] netlink_unicast+0x449/0x710 [ 4354.176317][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.176317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.176317][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.176317][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.176317][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.176317][ T254] [ 4354.178517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.178517][ T254] netdev_get_by_index+0x5e/0x80 [ 4354.178517][ T254] fib6_nh_init+0x3d8/0x1580 [ 4354.178517][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4354.178517][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4354.178517][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4354.178517][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4354.178517][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4354.178517][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4354.178517][ T254] addrconf_dad_begin+0x310/0x670 [ 4354.178517][ T254] addrconf_dad_work+0x10b/0xab0 [ 4354.178517][ T254] process_one_work+0x84d/0x18a0 [ 4354.178517][ T254] worker_thread+0x587/0xd30 [ 4354.178517][ T254] kthread+0x28a/0x350 [ 4354.178517][ T254] ret_from_fork+0x31/0x70 [ 4354.178517][ T254] ret_from_fork_asm+0x1a/0x30 [ 4354.178517][ T254] [ 4354.180682][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.180682][ T254] netdev_get_by_index+0x5e/0x80 [ 4354.180682][ T254] fib6_nh_init+0x3d8/0x1580 [ 4354.180682][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4354.180682][ T254] ip6_route_add+0x1c/0x140 [ 4354.180682][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4354.180682][ T254] inet6_addr_add+0x4f8/0xa40 [ 4354.180682][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4354.180682][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4354.180682][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.180682][ T254] netlink_unicast+0x449/0x710 [ 4354.180682][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.180682][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.180682][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.180682][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.180682][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.180682][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4354.180682][ T254] [ 4354.182919][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.182919][ T254] netdev_get_by_index+0x5e/0x80 [ 4354.182919][ T254] fib6_nh_init+0x3d8/0x1580 [ 4354.182919][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4354.182919][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4354.182919][ T254] ipv6_add_addr+0x411/0x2000 [ 4354.182919][ T254] inet6_addr_add+0x30e/0xa40 [ 4354.182919][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4354.182919][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4354.182919][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.182919][ T254] netlink_unicast+0x449/0x710 [ 4354.182919][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.182919][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.182919][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.182919][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.182919][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.182919][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4354.182919][ T254] [ 4354.185153][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.185153][ T254] netdev_get_by_index+0x5e/0x80 [ 4354.185153][ T254] fib6_nh_init+0x3d8/0x1580 [ 4354.185153][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4354.185153][ T254] ip6_route_add+0x1c/0x140 [ 4354.185153][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4354.185153][ T254] addrconf_add_dev+0xe2/0x170 [ 4354.185153][ T254] inet6_addr_add+0x12f/0xa40 [ 4354.185153][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4354.185153][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4354.185153][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.185153][ T254] netlink_unicast+0x449/0x710 [ 4354.185153][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.185153][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.185153][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.185153][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.185153][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.185153][ T254] [ 4354.187362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.187362][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4354.187362][ T254] ipv6_find_idev+0x102/0x170 [ 4354.187362][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4354.187362][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4354.187362][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.187362][ T254] netlink_unicast+0x449/0x710 [ 4354.187362][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.187362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.187362][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.187362][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.187362][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.187362][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4354.187362][ T254] [ 4354.189091][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4354.189091][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4354.189091][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4354.189091][ T254] ipv6_find_idev+0x102/0x170 [ 4354.189091][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4354.189091][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4354.189091][ T254] netlink_rcv_skb+0x130/0x360 [ 4354.189091][ T254] netlink_unicast+0x449/0x710 [ 4354.189091][ T254] netlink_sendmsg+0x723/0xbe0 [ 4354.189091][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4354.189091][ T254] ___sys_sendmsg+0xee/0x170 [ 4354.189091][ T254] __sys_sendmsg+0xcd/0x170 [ 4354.189091][ T254] do_syscall_64+0xc6/0x1e0 [ 4354.189091][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4354.189091][ T254] [ 4364.383911][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4364.384370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.384370][ T254] dst_init+0x84/0x4a0 [ 4364.384370][ T254] dst_alloc+0x97/0x150 [ 4364.384370][ T254] ip6_dst_alloc+0x23/0x90 [ 4364.384370][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4364.384370][ T254] ip6_pol_route+0x56f/0x840 [ 4364.384370][ T254] fib6_rule_lookup+0x334/0x630 [ 4364.384370][ T254] ip6_route_output_flags+0x259/0x480 [ 4364.384370][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4364.384370][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4364.384370][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.384370][ T254] netlink_unicast+0x449/0x710 [ 4364.384370][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.384370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.384370][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.384370][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.384370][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.384370][ T254] [ 4364.386560][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.386560][ T254] netdev_get_by_index+0x5e/0x80 [ 4364.386560][ T254] fib6_nh_init+0x3d8/0x1580 [ 4364.386560][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4364.386560][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4364.386560][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4364.386560][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4364.386560][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4364.386560][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4364.386560][ T254] addrconf_dad_begin+0x310/0x670 [ 4364.386560][ T254] addrconf_dad_work+0x10b/0xab0 [ 4364.386560][ T254] process_one_work+0x84d/0x18a0 [ 4364.386560][ T254] worker_thread+0x587/0xd30 [ 4364.386560][ T254] kthread+0x28a/0x350 [ 4364.386560][ T254] ret_from_fork+0x31/0x70 [ 4364.386560][ T254] ret_from_fork_asm+0x1a/0x30 [ 4364.386560][ T254] [ 4364.388729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.388729][ T254] netdev_get_by_index+0x5e/0x80 [ 4364.388729][ T254] fib6_nh_init+0x3d8/0x1580 [ 4364.388729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4364.388729][ T254] ip6_route_add+0x1c/0x140 [ 4364.388729][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4364.388729][ T254] inet6_addr_add+0x4f8/0xa40 [ 4364.388729][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4364.388729][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4364.388729][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.388729][ T254] netlink_unicast+0x449/0x710 [ 4364.388729][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.388729][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.388729][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.388729][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.388729][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.388729][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4364.388729][ T254] [ 4364.390969][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.390969][ T254] netdev_get_by_index+0x5e/0x80 [ 4364.390969][ T254] fib6_nh_init+0x3d8/0x1580 [ 4364.390969][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4364.390969][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4364.390969][ T254] ipv6_add_addr+0x411/0x2000 [ 4364.390969][ T254] inet6_addr_add+0x30e/0xa40 [ 4364.390969][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4364.390969][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4364.390969][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.390969][ T254] netlink_unicast+0x449/0x710 [ 4364.390969][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.390969][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.390969][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.390969][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.390969][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.390969][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4364.390969][ T254] [ 4364.393201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.393201][ T254] netdev_get_by_index+0x5e/0x80 [ 4364.393201][ T254] fib6_nh_init+0x3d8/0x1580 [ 4364.393201][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4364.393201][ T254] ip6_route_add+0x1c/0x140 [ 4364.393201][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4364.393201][ T254] addrconf_add_dev+0xe2/0x170 [ 4364.393201][ T254] inet6_addr_add+0x12f/0xa40 [ 4364.393201][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4364.393201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4364.393201][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.393201][ T254] netlink_unicast+0x449/0x710 [ 4364.393201][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.393201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.393201][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.393201][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.393201][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.393201][ T254] [ 4364.395397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.395397][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4364.395397][ T254] ipv6_find_idev+0x102/0x170 [ 4364.395397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4364.395397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4364.395397][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.395397][ T254] netlink_unicast+0x449/0x710 [ 4364.395397][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.395397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.395397][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.395397][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.395397][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.395397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4364.395397][ T254] [ 4364.397124][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4364.397124][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4364.397124][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4364.397124][ T254] ipv6_find_idev+0x102/0x170 [ 4364.397124][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4364.397124][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4364.397124][ T254] netlink_rcv_skb+0x130/0x360 [ 4364.397124][ T254] netlink_unicast+0x449/0x710 [ 4364.397124][ T254] netlink_sendmsg+0x723/0xbe0 [ 4364.397124][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4364.397124][ T254] ___sys_sendmsg+0xee/0x170 [ 4364.397124][ T254] __sys_sendmsg+0xcd/0x170 [ 4364.397124][ T254] do_syscall_64+0xc6/0x1e0 [ 4364.397124][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4364.397124][ T254] [ 4374.639835][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4374.640294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.640294][ T254] dst_init+0x84/0x4a0 [ 4374.640294][ T254] dst_alloc+0x97/0x150 [ 4374.640294][ T254] ip6_dst_alloc+0x23/0x90 [ 4374.640294][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4374.640294][ T254] ip6_pol_route+0x56f/0x840 [ 4374.640294][ T254] fib6_rule_lookup+0x334/0x630 [ 4374.640294][ T254] ip6_route_output_flags+0x259/0x480 [ 4374.640294][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4374.640294][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4374.640294][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.640294][ T254] netlink_unicast+0x449/0x710 [ 4374.640294][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.640294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.640294][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.640294][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.640294][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.640294][ T254] [ 4374.642485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.642485][ T254] netdev_get_by_index+0x5e/0x80 [ 4374.642485][ T254] fib6_nh_init+0x3d8/0x1580 [ 4374.642485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4374.642485][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4374.642485][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4374.642485][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4374.642485][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4374.642485][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4374.642485][ T254] addrconf_dad_begin+0x310/0x670 [ 4374.642485][ T254] addrconf_dad_work+0x10b/0xab0 [ 4374.642485][ T254] process_one_work+0x84d/0x18a0 [ 4374.642485][ T254] worker_thread+0x587/0xd30 [ 4374.642485][ T254] kthread+0x28a/0x350 [ 4374.642485][ T254] ret_from_fork+0x31/0x70 [ 4374.642485][ T254] ret_from_fork_asm+0x1a/0x30 [ 4374.642485][ T254] [ 4374.644641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.644641][ T254] netdev_get_by_index+0x5e/0x80 [ 4374.644641][ T254] fib6_nh_init+0x3d8/0x1580 [ 4374.644641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4374.644641][ T254] ip6_route_add+0x1c/0x140 [ 4374.644641][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4374.644641][ T254] inet6_addr_add+0x4f8/0xa40 [ 4374.644641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4374.644641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4374.644641][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.644641][ T254] netlink_unicast+0x449/0x710 [ 4374.644641][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.644641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.644641][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.644641][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.644641][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.644641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4374.644641][ T254] [ 4374.646889][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.646889][ T254] netdev_get_by_index+0x5e/0x80 [ 4374.646889][ T254] fib6_nh_init+0x3d8/0x1580 [ 4374.646889][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4374.646889][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4374.646889][ T254] ipv6_add_addr+0x411/0x2000 [ 4374.646889][ T254] inet6_addr_add+0x30e/0xa40 [ 4374.646889][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4374.646889][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4374.646889][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.646889][ T254] netlink_unicast+0x449/0x710 [ 4374.646889][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.646889][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.646889][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.646889][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.646889][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.646889][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4374.646889][ T254] [ 4374.649125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.649125][ T254] netdev_get_by_index+0x5e/0x80 [ 4374.649125][ T254] fib6_nh_init+0x3d8/0x1580 [ 4374.649125][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4374.649125][ T254] ip6_route_add+0x1c/0x140 [ 4374.649125][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4374.649125][ T254] addrconf_add_dev+0xe2/0x170 [ 4374.649125][ T254] inet6_addr_add+0x12f/0xa40 [ 4374.649125][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4374.649125][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4374.649125][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.649125][ T254] netlink_unicast+0x449/0x710 [ 4374.649125][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.649125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.649125][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.649125][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.649125][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.649125][ T254] [ 4374.651331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.651331][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4374.651331][ T254] ipv6_find_idev+0x102/0x170 [ 4374.651331][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4374.651331][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4374.651331][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.651331][ T254] netlink_unicast+0x449/0x710 [ 4374.651331][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.651331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.651331][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.651331][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.651331][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.651331][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4374.651331][ T254] [ 4374.653065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4374.653065][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4374.653065][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4374.653065][ T254] ipv6_find_idev+0x102/0x170 [ 4374.653065][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4374.653065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4374.653065][ T254] netlink_rcv_skb+0x130/0x360 [ 4374.653065][ T254] netlink_unicast+0x449/0x710 [ 4374.653065][ T254] netlink_sendmsg+0x723/0xbe0 [ 4374.653065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4374.653065][ T254] ___sys_sendmsg+0xee/0x170 [ 4374.653065][ T254] __sys_sendmsg+0xcd/0x170 [ 4374.653065][ T254] do_syscall_64+0xc6/0x1e0 [ 4374.653065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4374.653065][ T254] [ 4384.895846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4384.896325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.896325][ T254] dst_init+0x84/0x4a0 [ 4384.896325][ T254] dst_alloc+0x97/0x150 [ 4384.896325][ T254] ip6_dst_alloc+0x23/0x90 [ 4384.896325][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4384.896325][ T254] ip6_pol_route+0x56f/0x840 [ 4384.896325][ T254] fib6_rule_lookup+0x334/0x630 [ 4384.896325][ T254] ip6_route_output_flags+0x259/0x480 [ 4384.896325][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4384.896325][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4384.896325][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.896325][ T254] netlink_unicast+0x449/0x710 [ 4384.896325][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.896325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.896325][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.896325][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.896325][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.896325][ T254] [ 4384.898528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.898528][ T254] netdev_get_by_index+0x5e/0x80 [ 4384.898528][ T254] fib6_nh_init+0x3d8/0x1580 [ 4384.898528][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4384.898528][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4384.898528][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4384.898528][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4384.898528][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4384.898528][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4384.898528][ T254] addrconf_dad_begin+0x310/0x670 [ 4384.898528][ T254] addrconf_dad_work+0x10b/0xab0 [ 4384.898528][ T254] process_one_work+0x84d/0x18a0 [ 4384.898528][ T254] worker_thread+0x587/0xd30 [ 4384.898528][ T254] kthread+0x28a/0x350 [ 4384.898528][ T254] ret_from_fork+0x31/0x70 [ 4384.898528][ T254] ret_from_fork_asm+0x1a/0x30 [ 4384.898528][ T254] [ 4384.900669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.900669][ T254] netdev_get_by_index+0x5e/0x80 [ 4384.900669][ T254] fib6_nh_init+0x3d8/0x1580 [ 4384.900669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4384.900669][ T254] ip6_route_add+0x1c/0x140 [ 4384.900669][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4384.900669][ T254] inet6_addr_add+0x4f8/0xa40 [ 4384.900669][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4384.900669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4384.900669][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.900669][ T254] netlink_unicast+0x449/0x710 [ 4384.900669][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.900669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.900669][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.900669][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.900669][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.900669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4384.900669][ T254] [ 4384.902901][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.902901][ T254] netdev_get_by_index+0x5e/0x80 [ 4384.902901][ T254] fib6_nh_init+0x3d8/0x1580 [ 4384.902901][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4384.902901][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4384.902901][ T254] ipv6_add_addr+0x411/0x2000 [ 4384.902901][ T254] inet6_addr_add+0x30e/0xa40 [ 4384.902901][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4384.902901][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4384.902901][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.902901][ T254] netlink_unicast+0x449/0x710 [ 4384.902901][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.902901][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.902901][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.902901][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.902901][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.902901][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4384.902901][ T254] [ 4384.905154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.905154][ T254] netdev_get_by_index+0x5e/0x80 [ 4384.905154][ T254] fib6_nh_init+0x3d8/0x1580 [ 4384.905154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4384.905154][ T254] ip6_route_add+0x1c/0x140 [ 4384.905154][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4384.905154][ T254] addrconf_add_dev+0xe2/0x170 [ 4384.905154][ T254] inet6_addr_add+0x12f/0xa40 [ 4384.905154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4384.905154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4384.905154][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.905154][ T254] netlink_unicast+0x449/0x710 [ 4384.905154][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.905154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.905154][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.905154][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.905154][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.905154][ T254] [ 4384.907362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.907362][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4384.907362][ T254] ipv6_find_idev+0x102/0x170 [ 4384.907362][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4384.907362][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4384.907362][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.907362][ T254] netlink_unicast+0x449/0x710 [ 4384.907362][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.907362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.907362][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.907362][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.907362][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.907362][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4384.907362][ T254] [ 4384.909085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4384.909085][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4384.909085][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4384.909085][ T254] ipv6_find_idev+0x102/0x170 [ 4384.909085][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4384.909085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4384.909085][ T254] netlink_rcv_skb+0x130/0x360 [ 4384.909085][ T254] netlink_unicast+0x449/0x710 [ 4384.909085][ T254] netlink_sendmsg+0x723/0xbe0 [ 4384.909085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4384.909085][ T254] ___sys_sendmsg+0xee/0x170 [ 4384.909085][ T254] __sys_sendmsg+0xcd/0x170 [ 4384.909085][ T254] do_syscall_64+0xc6/0x1e0 [ 4384.909085][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4384.909085][ T254] [ 4395.151847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4395.152319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.152319][ T254] dst_init+0x84/0x4a0 [ 4395.152319][ T254] dst_alloc+0x97/0x150 [ 4395.152319][ T254] ip6_dst_alloc+0x23/0x90 [ 4395.152319][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4395.152319][ T254] ip6_pol_route+0x56f/0x840 [ 4395.152319][ T254] fib6_rule_lookup+0x334/0x630 [ 4395.152319][ T254] ip6_route_output_flags+0x259/0x480 [ 4395.152319][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4395.152319][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4395.152319][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.152319][ T254] netlink_unicast+0x449/0x710 [ 4395.152319][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.152319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.152319][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.152319][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.152319][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.152319][ T254] [ 4395.154508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.154508][ T254] netdev_get_by_index+0x5e/0x80 [ 4395.154508][ T254] fib6_nh_init+0x3d8/0x1580 [ 4395.154508][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4395.154508][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4395.154508][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4395.154508][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4395.154508][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4395.154508][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4395.154508][ T254] addrconf_dad_begin+0x310/0x670 [ 4395.154508][ T254] addrconf_dad_work+0x10b/0xab0 [ 4395.154508][ T254] process_one_work+0x84d/0x18a0 [ 4395.154508][ T254] worker_thread+0x587/0xd30 [ 4395.154508][ T254] kthread+0x28a/0x350 [ 4395.154508][ T254] ret_from_fork+0x31/0x70 [ 4395.154508][ T254] ret_from_fork_asm+0x1a/0x30 [ 4395.154508][ T254] [ 4395.156679][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.156679][ T254] netdev_get_by_index+0x5e/0x80 [ 4395.156679][ T254] fib6_nh_init+0x3d8/0x1580 [ 4395.156679][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4395.156679][ T254] ip6_route_add+0x1c/0x140 [ 4395.156679][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4395.156679][ T254] inet6_addr_add+0x4f8/0xa40 [ 4395.156679][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4395.156679][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4395.156679][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.156679][ T254] netlink_unicast+0x449/0x710 [ 4395.156679][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.156679][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.156679][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.156679][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.156679][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.156679][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4395.156679][ T254] [ 4395.158911][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.158911][ T254] netdev_get_by_index+0x5e/0x80 [ 4395.158911][ T254] fib6_nh_init+0x3d8/0x1580 [ 4395.158911][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4395.158911][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4395.158911][ T254] ipv6_add_addr+0x411/0x2000 [ 4395.158911][ T254] inet6_addr_add+0x30e/0xa40 [ 4395.158911][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4395.158911][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4395.158911][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.158911][ T254] netlink_unicast+0x449/0x710 [ 4395.158911][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.158911][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.158911][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.158911][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.158911][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.158911][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4395.158911][ T254] [ 4395.161140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.161140][ T254] netdev_get_by_index+0x5e/0x80 [ 4395.161140][ T254] fib6_nh_init+0x3d8/0x1580 [ 4395.161140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4395.161140][ T254] ip6_route_add+0x1c/0x140 [ 4395.161140][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4395.161140][ T254] addrconf_add_dev+0xe2/0x170 [ 4395.161140][ T254] inet6_addr_add+0x12f/0xa40 [ 4395.161140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4395.161140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4395.161140][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.161140][ T254] netlink_unicast+0x449/0x710 [ 4395.161140][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.161140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.161140][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.161140][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.161140][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.161140][ T254] [ 4395.163327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.163327][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4395.163327][ T254] ipv6_find_idev+0x102/0x170 [ 4395.163327][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4395.163327][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4395.163327][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.163327][ T254] netlink_unicast+0x449/0x710 [ 4395.163327][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.163327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.163327][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.163327][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.163327][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.163327][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4395.163327][ T254] [ 4395.165044][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4395.165044][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4395.165044][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4395.165044][ T254] ipv6_find_idev+0x102/0x170 [ 4395.165044][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4395.165044][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4395.165044][ T254] netlink_rcv_skb+0x130/0x360 [ 4395.165044][ T254] netlink_unicast+0x449/0x710 [ 4395.165044][ T254] netlink_sendmsg+0x723/0xbe0 [ 4395.165044][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4395.165044][ T254] ___sys_sendmsg+0xee/0x170 [ 4395.165044][ T254] __sys_sendmsg+0xcd/0x170 [ 4395.165044][ T254] do_syscall_64+0xc6/0x1e0 [ 4395.165044][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4395.165044][ T254] [ 4405.407867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4405.408327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.408327][ T254] dst_init+0x84/0x4a0 [ 4405.408327][ T254] dst_alloc+0x97/0x150 [ 4405.408327][ T254] ip6_dst_alloc+0x23/0x90 [ 4405.408327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4405.408327][ T254] ip6_pol_route+0x56f/0x840 [ 4405.408327][ T254] fib6_rule_lookup+0x334/0x630 [ 4405.408327][ T254] ip6_route_output_flags+0x259/0x480 [ 4405.408327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4405.408327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4405.408327][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.408327][ T254] netlink_unicast+0x449/0x710 [ 4405.408327][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.408327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.408327][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.408327][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.408327][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.408327][ T254] [ 4405.410533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.410533][ T254] netdev_get_by_index+0x5e/0x80 [ 4405.410533][ T254] fib6_nh_init+0x3d8/0x1580 [ 4405.410533][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4405.410533][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4405.410533][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4405.410533][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4405.410533][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4405.410533][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4405.410533][ T254] addrconf_dad_begin+0x310/0x670 [ 4405.410533][ T254] addrconf_dad_work+0x10b/0xab0 [ 4405.410533][ T254] process_one_work+0x84d/0x18a0 [ 4405.410533][ T254] worker_thread+0x587/0xd30 [ 4405.410533][ T254] kthread+0x28a/0x350 [ 4405.410533][ T254] ret_from_fork+0x31/0x70 [ 4405.410533][ T254] ret_from_fork_asm+0x1a/0x30 [ 4405.410533][ T254] [ 4405.412672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.412672][ T254] netdev_get_by_index+0x5e/0x80 [ 4405.412672][ T254] fib6_nh_init+0x3d8/0x1580 [ 4405.412672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4405.412672][ T254] ip6_route_add+0x1c/0x140 [ 4405.412672][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4405.412672][ T254] inet6_addr_add+0x4f8/0xa40 [ 4405.412672][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4405.412672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4405.412672][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.412672][ T254] netlink_unicast+0x449/0x710 [ 4405.412672][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.412672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.412672][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.412672][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.412672][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.412672][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4405.412672][ T254] [ 4405.414916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.414916][ T254] netdev_get_by_index+0x5e/0x80 [ 4405.414916][ T254] fib6_nh_init+0x3d8/0x1580 [ 4405.414916][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4405.414916][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4405.414916][ T254] ipv6_add_addr+0x411/0x2000 [ 4405.414916][ T254] inet6_addr_add+0x30e/0xa40 [ 4405.414916][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4405.414916][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4405.414916][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.414916][ T254] netlink_unicast+0x449/0x710 [ 4405.414916][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.414916][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.414916][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.414916][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.414916][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.414916][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4405.414916][ T254] [ 4405.417172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.417172][ T254] netdev_get_by_index+0x5e/0x80 [ 4405.417172][ T254] fib6_nh_init+0x3d8/0x1580 [ 4405.417172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4405.417172][ T254] ip6_route_add+0x1c/0x140 [ 4405.417172][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4405.417172][ T254] addrconf_add_dev+0xe2/0x170 [ 4405.417172][ T254] inet6_addr_add+0x12f/0xa40 [ 4405.417172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4405.417172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4405.417172][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.417172][ T254] netlink_unicast+0x449/0x710 [ 4405.417172][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.417172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.417172][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.417172][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.417172][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.417172][ T254] [ 4405.419371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.419371][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4405.419371][ T254] ipv6_find_idev+0x102/0x170 [ 4405.419371][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4405.419371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4405.419371][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.419371][ T254] netlink_unicast+0x449/0x710 [ 4405.419371][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.419371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.419371][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.419371][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.419371][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.419371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4405.419371][ T254] [ 4405.421091][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4405.421091][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4405.421091][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4405.421091][ T254] ipv6_find_idev+0x102/0x170 [ 4405.421091][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4405.421091][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4405.421091][ T254] netlink_rcv_skb+0x130/0x360 [ 4405.421091][ T254] netlink_unicast+0x449/0x710 [ 4405.421091][ T254] netlink_sendmsg+0x723/0xbe0 [ 4405.421091][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4405.421091][ T254] ___sys_sendmsg+0xee/0x170 [ 4405.421091][ T254] __sys_sendmsg+0xcd/0x170 [ 4405.421091][ T254] do_syscall_64+0xc6/0x1e0 [ 4405.421091][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4405.421091][ T254] [ 4415.663855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4415.664281][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.664281][ T254] dst_init+0x84/0x4a0 [ 4415.664281][ T254] dst_alloc+0x97/0x150 [ 4415.664281][ T254] ip6_dst_alloc+0x23/0x90 [ 4415.664281][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4415.664281][ T254] ip6_pol_route+0x56f/0x840 [ 4415.664281][ T254] fib6_rule_lookup+0x334/0x630 [ 4415.664281][ T254] ip6_route_output_flags+0x259/0x480 [ 4415.664281][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4415.664281][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4415.664281][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.664281][ T254] netlink_unicast+0x449/0x710 [ 4415.664281][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.664281][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.664281][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.664281][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.664281][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.664281][ T254] [ 4415.666476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.666476][ T254] netdev_get_by_index+0x5e/0x80 [ 4415.666476][ T254] fib6_nh_init+0x3d8/0x1580 [ 4415.666476][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4415.666476][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4415.666476][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4415.666476][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4415.666476][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4415.666476][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4415.666476][ T254] addrconf_dad_begin+0x310/0x670 [ 4415.666476][ T254] addrconf_dad_work+0x10b/0xab0 [ 4415.666476][ T254] process_one_work+0x84d/0x18a0 [ 4415.666476][ T254] worker_thread+0x587/0xd30 [ 4415.666476][ T254] kthread+0x28a/0x350 [ 4415.666476][ T254] ret_from_fork+0x31/0x70 [ 4415.666476][ T254] ret_from_fork_asm+0x1a/0x30 [ 4415.666476][ T254] [ 4415.668625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.668625][ T254] netdev_get_by_index+0x5e/0x80 [ 4415.668625][ T254] fib6_nh_init+0x3d8/0x1580 [ 4415.668625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4415.668625][ T254] ip6_route_add+0x1c/0x140 [ 4415.668625][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4415.668625][ T254] inet6_addr_add+0x4f8/0xa40 [ 4415.668625][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4415.668625][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4415.668625][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.668625][ T254] netlink_unicast+0x449/0x710 [ 4415.668625][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.668625][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.668625][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.668625][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.668625][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.668625][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4415.668625][ T254] [ 4415.670867][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.670867][ T254] netdev_get_by_index+0x5e/0x80 [ 4415.670867][ T254] fib6_nh_init+0x3d8/0x1580 [ 4415.670867][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4415.670867][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4415.670867][ T254] ipv6_add_addr+0x411/0x2000 [ 4415.670867][ T254] inet6_addr_add+0x30e/0xa40 [ 4415.670867][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4415.670867][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4415.670867][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.670867][ T254] netlink_unicast+0x449/0x710 [ 4415.670867][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.670867][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.670867][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.670867][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.670867][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.670867][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4415.670867][ T254] [ 4415.673101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.673101][ T254] netdev_get_by_index+0x5e/0x80 [ 4415.673101][ T254] fib6_nh_init+0x3d8/0x1580 [ 4415.673101][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4415.673101][ T254] ip6_route_add+0x1c/0x140 [ 4415.673101][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4415.673101][ T254] addrconf_add_dev+0xe2/0x170 [ 4415.673101][ T254] inet6_addr_add+0x12f/0xa40 [ 4415.673101][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4415.673101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4415.673101][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.673101][ T254] netlink_unicast+0x449/0x710 [ 4415.673101][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.673101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.673101][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.673101][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.673101][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.673101][ T254] [ 4415.675306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.675306][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4415.675306][ T254] ipv6_find_idev+0x102/0x170 [ 4415.675306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4415.675306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4415.675306][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.675306][ T254] netlink_unicast+0x449/0x710 [ 4415.675306][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.675306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.675306][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.675306][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.675306][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.675306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4415.675306][ T254] [ 4415.677042][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4415.677042][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4415.677042][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4415.677042][ T254] ipv6_find_idev+0x102/0x170 [ 4415.677042][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4415.677042][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4415.677042][ T254] netlink_rcv_skb+0x130/0x360 [ 4415.677042][ T254] netlink_unicast+0x449/0x710 [ 4415.677042][ T254] netlink_sendmsg+0x723/0xbe0 [ 4415.677042][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4415.677042][ T254] ___sys_sendmsg+0xee/0x170 [ 4415.677042][ T254] __sys_sendmsg+0xcd/0x170 [ 4415.677042][ T254] do_syscall_64+0xc6/0x1e0 [ 4415.677042][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4415.677042][ T254] [ 4425.807847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4425.808326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.808326][ T254] dst_init+0x84/0x4a0 [ 4425.808326][ T254] dst_alloc+0x97/0x150 [ 4425.808326][ T254] ip6_dst_alloc+0x23/0x90 [ 4425.808326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4425.808326][ T254] ip6_pol_route+0x56f/0x840 [ 4425.808326][ T254] fib6_rule_lookup+0x334/0x630 [ 4425.808326][ T254] ip6_route_output_flags+0x259/0x480 [ 4425.808326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4425.808326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4425.808326][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.808326][ T254] netlink_unicast+0x449/0x710 [ 4425.808326][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.808326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.808326][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.808326][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.808326][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.808326][ T254] [ 4425.810516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.810516][ T254] netdev_get_by_index+0x5e/0x80 [ 4425.810516][ T254] fib6_nh_init+0x3d8/0x1580 [ 4425.810516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4425.810516][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4425.810516][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4425.810516][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4425.810516][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4425.810516][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4425.810516][ T254] addrconf_dad_begin+0x310/0x670 [ 4425.810516][ T254] addrconf_dad_work+0x10b/0xab0 [ 4425.810516][ T254] process_one_work+0x84d/0x18a0 [ 4425.810516][ T254] worker_thread+0x587/0xd30 [ 4425.810516][ T254] kthread+0x28a/0x350 [ 4425.810516][ T254] ret_from_fork+0x31/0x70 [ 4425.810516][ T254] ret_from_fork_asm+0x1a/0x30 [ 4425.810516][ T254] [ 4425.812663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.812663][ T254] netdev_get_by_index+0x5e/0x80 [ 4425.812663][ T254] fib6_nh_init+0x3d8/0x1580 [ 4425.812663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4425.812663][ T254] ip6_route_add+0x1c/0x140 [ 4425.812663][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4425.812663][ T254] inet6_addr_add+0x4f8/0xa40 [ 4425.812663][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4425.812663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4425.812663][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.812663][ T254] netlink_unicast+0x449/0x710 [ 4425.812663][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.812663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.812663][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.812663][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.812663][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.812663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4425.812663][ T254] [ 4425.814902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.814902][ T254] netdev_get_by_index+0x5e/0x80 [ 4425.814902][ T254] fib6_nh_init+0x3d8/0x1580 [ 4425.814902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4425.814902][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4425.814902][ T254] ipv6_add_addr+0x411/0x2000 [ 4425.814902][ T254] inet6_addr_add+0x30e/0xa40 [ 4425.814902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4425.814902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4425.814902][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.814902][ T254] netlink_unicast+0x449/0x710 [ 4425.814902][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.814902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.814902][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.814902][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.814902][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.814902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4425.814902][ T254] [ 4425.817156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.817156][ T254] netdev_get_by_index+0x5e/0x80 [ 4425.817156][ T254] fib6_nh_init+0x3d8/0x1580 [ 4425.817156][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4425.817156][ T254] ip6_route_add+0x1c/0x140 [ 4425.817156][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4425.817156][ T254] addrconf_add_dev+0xe2/0x170 [ 4425.817156][ T254] inet6_addr_add+0x12f/0xa40 [ 4425.817156][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4425.817156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4425.817156][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.817156][ T254] netlink_unicast+0x449/0x710 [ 4425.817156][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.817156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.817156][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.817156][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.817156][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.817156][ T254] [ 4425.819351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.819351][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4425.819351][ T254] ipv6_find_idev+0x102/0x170 [ 4425.819351][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4425.819351][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4425.819351][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.819351][ T254] netlink_unicast+0x449/0x710 [ 4425.819351][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.819351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.819351][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.819351][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.819351][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.819351][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4425.819351][ T254] [ 4425.821066][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4425.821066][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4425.821066][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4425.821066][ T254] ipv6_find_idev+0x102/0x170 [ 4425.821066][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4425.821066][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4425.821066][ T254] netlink_rcv_skb+0x130/0x360 [ 4425.821066][ T254] netlink_unicast+0x449/0x710 [ 4425.821066][ T254] netlink_sendmsg+0x723/0xbe0 [ 4425.821066][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4425.821066][ T254] ___sys_sendmsg+0xee/0x170 [ 4425.821066][ T254] __sys_sendmsg+0xcd/0x170 [ 4425.821066][ T254] do_syscall_64+0xc6/0x1e0 [ 4425.821066][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4425.821066][ T254] [ 4436.071852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4436.072334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.072334][ T254] dst_init+0x84/0x4a0 [ 4436.072334][ T254] dst_alloc+0x97/0x150 [ 4436.072334][ T254] ip6_dst_alloc+0x23/0x90 [ 4436.072334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4436.072334][ T254] ip6_pol_route+0x56f/0x840 [ 4436.072334][ T254] fib6_rule_lookup+0x334/0x630 [ 4436.072334][ T254] ip6_route_output_flags+0x259/0x480 [ 4436.072334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4436.072334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4436.072334][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.072334][ T254] netlink_unicast+0x449/0x710 [ 4436.072334][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.072334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.072334][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.072334][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.072334][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.072334][ T254] [ 4436.074529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.074529][ T254] netdev_get_by_index+0x5e/0x80 [ 4436.074529][ T254] fib6_nh_init+0x3d8/0x1580 [ 4436.074529][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4436.074529][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4436.074529][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4436.074529][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4436.074529][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4436.074529][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4436.074529][ T254] addrconf_dad_begin+0x310/0x670 [ 4436.074529][ T254] addrconf_dad_work+0x10b/0xab0 [ 4436.074529][ T254] process_one_work+0x84d/0x18a0 [ 4436.074529][ T254] worker_thread+0x587/0xd30 [ 4436.074529][ T254] kthread+0x28a/0x350 [ 4436.074529][ T254] ret_from_fork+0x31/0x70 [ 4436.074529][ T254] ret_from_fork_asm+0x1a/0x30 [ 4436.074529][ T254] [ 4436.076677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.076677][ T254] netdev_get_by_index+0x5e/0x80 [ 4436.076677][ T254] fib6_nh_init+0x3d8/0x1580 [ 4436.076677][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4436.076677][ T254] ip6_route_add+0x1c/0x140 [ 4436.076677][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4436.076677][ T254] inet6_addr_add+0x4f8/0xa40 [ 4436.076677][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4436.076677][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4436.076677][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.076677][ T254] netlink_unicast+0x449/0x710 [ 4436.076677][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.076677][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.076677][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.076677][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.076677][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.076677][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4436.076677][ T254] [ 4436.078909][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.078909][ T254] netdev_get_by_index+0x5e/0x80 [ 4436.078909][ T254] fib6_nh_init+0x3d8/0x1580 [ 4436.078909][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4436.078909][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4436.078909][ T254] ipv6_add_addr+0x411/0x2000 [ 4436.078909][ T254] inet6_addr_add+0x30e/0xa40 [ 4436.078909][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4436.078909][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4436.078909][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.078909][ T254] netlink_unicast+0x449/0x710 [ 4436.078909][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.078909][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.078909][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.078909][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.078909][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.078909][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4436.078909][ T254] [ 4436.081137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.081137][ T254] netdev_get_by_index+0x5e/0x80 [ 4436.081137][ T254] fib6_nh_init+0x3d8/0x1580 [ 4436.081137][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4436.081137][ T254] ip6_route_add+0x1c/0x140 [ 4436.081137][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4436.081137][ T254] addrconf_add_dev+0xe2/0x170 [ 4436.081137][ T254] inet6_addr_add+0x12f/0xa40 [ 4436.081137][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4436.081137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4436.081137][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.081137][ T254] netlink_unicast+0x449/0x710 [ 4436.081137][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.081137][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.081137][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.081137][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.081137][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.081137][ T254] [ 4436.083333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.083333][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4436.083333][ T254] ipv6_find_idev+0x102/0x170 [ 4436.083333][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4436.083333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4436.083333][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.083333][ T254] netlink_unicast+0x449/0x710 [ 4436.083333][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.083333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.083333][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.083333][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.083333][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.083333][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4436.083333][ T254] [ 4436.085048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4436.085048][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4436.085048][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4436.085048][ T254] ipv6_find_idev+0x102/0x170 [ 4436.085048][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4436.085048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4436.085048][ T254] netlink_rcv_skb+0x130/0x360 [ 4436.085048][ T254] netlink_unicast+0x449/0x710 [ 4436.085048][ T254] netlink_sendmsg+0x723/0xbe0 [ 4436.085048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4436.085048][ T254] ___sys_sendmsg+0xee/0x170 [ 4436.085048][ T254] __sys_sendmsg+0xcd/0x170 [ 4436.085048][ T254] do_syscall_64+0xc6/0x1e0 [ 4436.085048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4436.085048][ T254] [ 4446.335913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4446.336387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.336387][ T254] dst_init+0x84/0x4a0 [ 4446.336387][ T254] dst_alloc+0x97/0x150 [ 4446.336387][ T254] ip6_dst_alloc+0x23/0x90 [ 4446.336387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4446.336387][ T254] ip6_pol_route+0x56f/0x840 [ 4446.336387][ T254] fib6_rule_lookup+0x334/0x630 [ 4446.336387][ T254] ip6_route_output_flags+0x259/0x480 [ 4446.336387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4446.336387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4446.336387][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.336387][ T254] netlink_unicast+0x449/0x710 [ 4446.336387][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.336387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.336387][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.336387][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.336387][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.336387][ T254] [ 4446.338578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.338578][ T254] netdev_get_by_index+0x5e/0x80 [ 4446.338578][ T254] fib6_nh_init+0x3d8/0x1580 [ 4446.338578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4446.338578][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4446.338578][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4446.338578][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4446.338578][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4446.338578][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4446.338578][ T254] addrconf_dad_begin+0x310/0x670 [ 4446.338578][ T254] addrconf_dad_work+0x10b/0xab0 [ 4446.338578][ T254] process_one_work+0x84d/0x18a0 [ 4446.338578][ T254] worker_thread+0x587/0xd30 [ 4446.338578][ T254] kthread+0x28a/0x350 [ 4446.338578][ T254] ret_from_fork+0x31/0x70 [ 4446.338578][ T254] ret_from_fork_asm+0x1a/0x30 [ 4446.338578][ T254] [ 4446.340717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.340717][ T254] netdev_get_by_index+0x5e/0x80 [ 4446.340717][ T254] fib6_nh_init+0x3d8/0x1580 [ 4446.340717][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4446.340717][ T254] ip6_route_add+0x1c/0x140 [ 4446.340717][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4446.340717][ T254] inet6_addr_add+0x4f8/0xa40 [ 4446.340717][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4446.340717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4446.340717][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.340717][ T254] netlink_unicast+0x449/0x710 [ 4446.340717][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.340717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.340717][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.340717][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.340717][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.340717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4446.340717][ T254] [ 4446.342961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.342961][ T254] netdev_get_by_index+0x5e/0x80 [ 4446.342961][ T254] fib6_nh_init+0x3d8/0x1580 [ 4446.342961][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4446.342961][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4446.342961][ T254] ipv6_add_addr+0x411/0x2000 [ 4446.342961][ T254] inet6_addr_add+0x30e/0xa40 [ 4446.342961][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4446.342961][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4446.342961][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.342961][ T254] netlink_unicast+0x449/0x710 [ 4446.342961][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.342961][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.342961][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.342961][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.342961][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.342961][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4446.342961][ T254] [ 4446.345724][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.345724][ T254] netdev_get_by_index+0x5e/0x80 [ 4446.345724][ T254] fib6_nh_init+0x3d8/0x1580 [ 4446.345724][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4446.345724][ T254] ip6_route_add+0x1c/0x140 [ 4446.345724][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4446.345724][ T254] addrconf_add_dev+0xe2/0x170 [ 4446.345724][ T254] inet6_addr_add+0x12f/0xa40 [ 4446.345724][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4446.345724][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4446.345724][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.345724][ T254] netlink_unicast+0x449/0x710 [ 4446.345724][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.345724][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.345724][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.345724][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.345724][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.345724][ T254] [ 4446.347998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.347998][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4446.347998][ T254] ipv6_find_idev+0x102/0x170 [ 4446.347998][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4446.347998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4446.347998][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.347998][ T254] netlink_unicast+0x449/0x710 [ 4446.347998][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.347998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.347998][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.347998][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.347998][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.347998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4446.347998][ T254] [ 4446.349726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4446.349726][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4446.349726][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4446.349726][ T254] ipv6_find_idev+0x102/0x170 [ 4446.349726][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4446.349726][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4446.349726][ T254] netlink_rcv_skb+0x130/0x360 [ 4446.349726][ T254] netlink_unicast+0x449/0x710 [ 4446.349726][ T254] netlink_sendmsg+0x723/0xbe0 [ 4446.349726][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4446.349726][ T254] ___sys_sendmsg+0xee/0x170 [ 4446.349726][ T254] __sys_sendmsg+0xcd/0x170 [ 4446.349726][ T254] do_syscall_64+0xc6/0x1e0 [ 4446.349726][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4446.349726][ T254] [ 4456.351841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4456.352309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.352309][ T254] dst_init+0x84/0x4a0 [ 4456.352309][ T254] dst_alloc+0x97/0x150 [ 4456.352309][ T254] ip6_dst_alloc+0x23/0x90 [ 4456.352309][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4456.352309][ T254] ip6_pol_route+0x56f/0x840 [ 4456.352309][ T254] fib6_rule_lookup+0x334/0x630 [ 4456.352309][ T254] ip6_route_output_flags+0x259/0x480 [ 4456.352309][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4456.352309][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4456.352309][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.352309][ T254] netlink_unicast+0x449/0x710 [ 4456.352309][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.352309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.352309][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.352309][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.352309][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.352309][ T254] [ 4456.354498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.354498][ T254] netdev_get_by_index+0x5e/0x80 [ 4456.354498][ T254] fib6_nh_init+0x3d8/0x1580 [ 4456.354498][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4456.354498][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4456.354498][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4456.354498][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4456.354498][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4456.354498][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4456.354498][ T254] addrconf_dad_begin+0x310/0x670 [ 4456.354498][ T254] addrconf_dad_work+0x10b/0xab0 [ 4456.354498][ T254] process_one_work+0x84d/0x18a0 [ 4456.354498][ T254] worker_thread+0x587/0xd30 [ 4456.354498][ T254] kthread+0x28a/0x350 [ 4456.354498][ T254] ret_from_fork+0x31/0x70 [ 4456.354498][ T254] ret_from_fork_asm+0x1a/0x30 [ 4456.354498][ T254] [ 4456.356658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.356658][ T254] netdev_get_by_index+0x5e/0x80 [ 4456.356658][ T254] fib6_nh_init+0x3d8/0x1580 [ 4456.356658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4456.356658][ T254] ip6_route_add+0x1c/0x140 [ 4456.356658][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4456.356658][ T254] inet6_addr_add+0x4f8/0xa40 [ 4456.356658][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4456.356658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4456.356658][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.356658][ T254] netlink_unicast+0x449/0x710 [ 4456.356658][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.356658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.356658][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.356658][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.356658][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.356658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4456.356658][ T254] [ 4456.358892][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.358892][ T254] netdev_get_by_index+0x5e/0x80 [ 4456.358892][ T254] fib6_nh_init+0x3d8/0x1580 [ 4456.358892][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4456.358892][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4456.358892][ T254] ipv6_add_addr+0x411/0x2000 [ 4456.358892][ T254] inet6_addr_add+0x30e/0xa40 [ 4456.358892][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4456.358892][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4456.358892][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.358892][ T254] netlink_unicast+0x449/0x710 [ 4456.358892][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.358892][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.358892][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.358892][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.358892][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.358892][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4456.358892][ T254] [ 4456.361129][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.361129][ T254] netdev_get_by_index+0x5e/0x80 [ 4456.361129][ T254] fib6_nh_init+0x3d8/0x1580 [ 4456.361129][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4456.361129][ T254] ip6_route_add+0x1c/0x140 [ 4456.361129][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4456.361129][ T254] addrconf_add_dev+0xe2/0x170 [ 4456.361129][ T254] inet6_addr_add+0x12f/0xa40 [ 4456.361129][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4456.361129][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4456.361129][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.361129][ T254] netlink_unicast+0x449/0x710 [ 4456.361129][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.361129][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.361129][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.361129][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.361129][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.361129][ T254] [ 4456.363322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.363322][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4456.363322][ T254] ipv6_find_idev+0x102/0x170 [ 4456.363322][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4456.363322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4456.363322][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.363322][ T254] netlink_unicast+0x449/0x710 [ 4456.363322][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.363322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.363322][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.363322][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.363322][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.363322][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4456.363322][ T254] [ 4456.365046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4456.365046][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4456.365046][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4456.365046][ T254] ipv6_find_idev+0x102/0x170 [ 4456.365046][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4456.365046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4456.365046][ T254] netlink_rcv_skb+0x130/0x360 [ 4456.365046][ T254] netlink_unicast+0x449/0x710 [ 4456.365046][ T254] netlink_sendmsg+0x723/0xbe0 [ 4456.365046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4456.365046][ T254] ___sys_sendmsg+0xee/0x170 [ 4456.365046][ T254] __sys_sendmsg+0xcd/0x170 [ 4456.365046][ T254] do_syscall_64+0xc6/0x1e0 [ 4456.365046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4456.365046][ T254] [ 4466.607844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4466.608305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.608305][ T254] dst_init+0x84/0x4a0 [ 4466.608305][ T254] dst_alloc+0x97/0x150 [ 4466.608305][ T254] ip6_dst_alloc+0x23/0x90 [ 4466.608305][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4466.608305][ T254] ip6_pol_route+0x56f/0x840 [ 4466.608305][ T254] fib6_rule_lookup+0x334/0x630 [ 4466.608305][ T254] ip6_route_output_flags+0x259/0x480 [ 4466.608305][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4466.608305][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4466.608305][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.608305][ T254] netlink_unicast+0x449/0x710 [ 4466.608305][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.608305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.608305][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.608305][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.608305][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.608305][ T254] [ 4466.610496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.610496][ T254] netdev_get_by_index+0x5e/0x80 [ 4466.610496][ T254] fib6_nh_init+0x3d8/0x1580 [ 4466.610496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4466.610496][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4466.610496][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4466.610496][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4466.610496][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4466.610496][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4466.610496][ T254] addrconf_dad_begin+0x310/0x670 [ 4466.610496][ T254] addrconf_dad_work+0x10b/0xab0 [ 4466.610496][ T254] process_one_work+0x84d/0x18a0 [ 4466.610496][ T254] worker_thread+0x587/0xd30 [ 4466.610496][ T254] kthread+0x28a/0x350 [ 4466.610496][ T254] ret_from_fork+0x31/0x70 [ 4466.610496][ T254] ret_from_fork_asm+0x1a/0x30 [ 4466.610496][ T254] [ 4466.612647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.612647][ T254] netdev_get_by_index+0x5e/0x80 [ 4466.612647][ T254] fib6_nh_init+0x3d8/0x1580 [ 4466.612647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4466.612647][ T254] ip6_route_add+0x1c/0x140 [ 4466.612647][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4466.612647][ T254] inet6_addr_add+0x4f8/0xa40 [ 4466.612647][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4466.612647][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4466.612647][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.612647][ T254] netlink_unicast+0x449/0x710 [ 4466.612647][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.612647][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.612647][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.612647][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.612647][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.612647][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4466.612647][ T254] [ 4466.614886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.614886][ T254] netdev_get_by_index+0x5e/0x80 [ 4466.614886][ T254] fib6_nh_init+0x3d8/0x1580 [ 4466.614886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4466.614886][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4466.614886][ T254] ipv6_add_addr+0x411/0x2000 [ 4466.614886][ T254] inet6_addr_add+0x30e/0xa40 [ 4466.614886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4466.614886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4466.614886][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.614886][ T254] netlink_unicast+0x449/0x710 [ 4466.614886][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.614886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.614886][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.614886][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.614886][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.614886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4466.614886][ T254] [ 4466.617127][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.617127][ T254] netdev_get_by_index+0x5e/0x80 [ 4466.617127][ T254] fib6_nh_init+0x3d8/0x1580 [ 4466.617127][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4466.617127][ T254] ip6_route_add+0x1c/0x140 [ 4466.617127][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4466.617127][ T254] addrconf_add_dev+0xe2/0x170 [ 4466.617127][ T254] inet6_addr_add+0x12f/0xa40 [ 4466.617127][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4466.617127][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4466.617127][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.617127][ T254] netlink_unicast+0x449/0x710 [ 4466.617127][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.617127][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.617127][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.617127][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.617127][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.617127][ T254] [ 4466.619319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.619319][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4466.619319][ T254] ipv6_find_idev+0x102/0x170 [ 4466.619319][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4466.619319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4466.619319][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.619319][ T254] netlink_unicast+0x449/0x710 [ 4466.619319][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.619319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.619319][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.619319][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.619319][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.619319][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4466.619319][ T254] [ 4466.621047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4466.621047][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4466.621047][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4466.621047][ T254] ipv6_find_idev+0x102/0x170 [ 4466.621047][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4466.621047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4466.621047][ T254] netlink_rcv_skb+0x130/0x360 [ 4466.621047][ T254] netlink_unicast+0x449/0x710 [ 4466.621047][ T254] netlink_sendmsg+0x723/0xbe0 [ 4466.621047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4466.621047][ T254] ___sys_sendmsg+0xee/0x170 [ 4466.621047][ T254] __sys_sendmsg+0xcd/0x170 [ 4466.621047][ T254] do_syscall_64+0xc6/0x1e0 [ 4466.621047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4466.621047][ T254] [ 4476.863850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4476.864318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.864318][ T254] dst_init+0x84/0x4a0 [ 4476.864318][ T254] dst_alloc+0x97/0x150 [ 4476.864318][ T254] ip6_dst_alloc+0x23/0x90 [ 4476.864318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4476.864318][ T254] ip6_pol_route+0x56f/0x840 [ 4476.864318][ T254] fib6_rule_lookup+0x334/0x630 [ 4476.864318][ T254] ip6_route_output_flags+0x259/0x480 [ 4476.864318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4476.864318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4476.864318][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.864318][ T254] netlink_unicast+0x449/0x710 [ 4476.864318][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.864318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.864318][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.864318][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.864318][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.864318][ T254] [ 4476.866528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.866528][ T254] netdev_get_by_index+0x5e/0x80 [ 4476.866528][ T254] fib6_nh_init+0x3d8/0x1580 [ 4476.866528][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4476.866528][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4476.866528][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4476.866528][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4476.866528][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4476.866528][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4476.866528][ T254] addrconf_dad_begin+0x310/0x670 [ 4476.866528][ T254] addrconf_dad_work+0x10b/0xab0 [ 4476.866528][ T254] process_one_work+0x84d/0x18a0 [ 4476.866528][ T254] worker_thread+0x587/0xd30 [ 4476.866528][ T254] kthread+0x28a/0x350 [ 4476.866528][ T254] ret_from_fork+0x31/0x70 [ 4476.866528][ T254] ret_from_fork_asm+0x1a/0x30 [ 4476.866528][ T254] [ 4476.868674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.868674][ T254] netdev_get_by_index+0x5e/0x80 [ 4476.868674][ T254] fib6_nh_init+0x3d8/0x1580 [ 4476.868674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4476.868674][ T254] ip6_route_add+0x1c/0x140 [ 4476.868674][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4476.868674][ T254] inet6_addr_add+0x4f8/0xa40 [ 4476.868674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4476.868674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4476.868674][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.868674][ T254] netlink_unicast+0x449/0x710 [ 4476.868674][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.868674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.868674][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.868674][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.868674][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.868674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4476.868674][ T254] [ 4476.870916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.870916][ T254] netdev_get_by_index+0x5e/0x80 [ 4476.870916][ T254] fib6_nh_init+0x3d8/0x1580 [ 4476.870916][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4476.870916][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4476.870916][ T254] ipv6_add_addr+0x411/0x2000 [ 4476.870916][ T254] inet6_addr_add+0x30e/0xa40 [ 4476.870916][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4476.870916][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4476.870916][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.870916][ T254] netlink_unicast+0x449/0x710 [ 4476.870916][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.870916][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.870916][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.870916][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.870916][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.870916][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4476.870916][ T254] [ 4476.873154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.873154][ T254] netdev_get_by_index+0x5e/0x80 [ 4476.873154][ T254] fib6_nh_init+0x3d8/0x1580 [ 4476.873154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4476.873154][ T254] ip6_route_add+0x1c/0x140 [ 4476.873154][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4476.873154][ T254] addrconf_add_dev+0xe2/0x170 [ 4476.873154][ T254] inet6_addr_add+0x12f/0xa40 [ 4476.873154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4476.873154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4476.873154][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.873154][ T254] netlink_unicast+0x449/0x710 [ 4476.873154][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.873154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.873154][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.873154][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.873154][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.873154][ T254] [ 4476.875353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.875353][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4476.875353][ T254] ipv6_find_idev+0x102/0x170 [ 4476.875353][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4476.875353][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4476.875353][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.875353][ T254] netlink_unicast+0x449/0x710 [ 4476.875353][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.875353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.875353][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.875353][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.875353][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.875353][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4476.875353][ T254] [ 4476.877078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4476.877078][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4476.877078][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4476.877078][ T254] ipv6_find_idev+0x102/0x170 [ 4476.877078][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4476.877078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4476.877078][ T254] netlink_rcv_skb+0x130/0x360 [ 4476.877078][ T254] netlink_unicast+0x449/0x710 [ 4476.877078][ T254] netlink_sendmsg+0x723/0xbe0 [ 4476.877078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4476.877078][ T254] ___sys_sendmsg+0xee/0x170 [ 4476.877078][ T254] __sys_sendmsg+0xcd/0x170 [ 4476.877078][ T254] do_syscall_64+0xc6/0x1e0 [ 4476.877078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4476.877078][ T254] [ 4487.095865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4487.096371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.096371][ T254] dst_init+0x84/0x4a0 [ 4487.096371][ T254] dst_alloc+0x97/0x150 [ 4487.096371][ T254] ip6_dst_alloc+0x23/0x90 [ 4487.096371][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4487.096371][ T254] ip6_pol_route+0x56f/0x840 [ 4487.096371][ T254] fib6_rule_lookup+0x334/0x630 [ 4487.096371][ T254] ip6_route_output_flags+0x259/0x480 [ 4487.096371][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4487.096371][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4487.096371][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.096371][ T254] netlink_unicast+0x449/0x710 [ 4487.096371][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.096371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.096371][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.096371][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.096371][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.096371][ T254] [ 4487.098579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.098579][ T254] netdev_get_by_index+0x5e/0x80 [ 4487.098579][ T254] fib6_nh_init+0x3d8/0x1580 [ 4487.098579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4487.098579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4487.098579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4487.098579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4487.098579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4487.098579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4487.098579][ T254] addrconf_dad_begin+0x310/0x670 [ 4487.098579][ T254] addrconf_dad_work+0x10b/0xab0 [ 4487.098579][ T254] process_one_work+0x84d/0x18a0 [ 4487.098579][ T254] worker_thread+0x587/0xd30 [ 4487.098579][ T254] kthread+0x28a/0x350 [ 4487.098579][ T254] ret_from_fork+0x31/0x70 [ 4487.098579][ T254] ret_from_fork_asm+0x1a/0x30 [ 4487.098579][ T254] [ 4487.100758][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.100758][ T254] netdev_get_by_index+0x5e/0x80 [ 4487.100758][ T254] fib6_nh_init+0x3d8/0x1580 [ 4487.100758][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4487.100758][ T254] ip6_route_add+0x1c/0x140 [ 4487.100758][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4487.100758][ T254] inet6_addr_add+0x4f8/0xa40 [ 4487.100758][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4487.100758][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4487.100758][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.100758][ T254] netlink_unicast+0x449/0x710 [ 4487.100758][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.100758][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.100758][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.100758][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.100758][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.100758][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4487.100758][ T254] [ 4487.103014][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.103014][ T254] netdev_get_by_index+0x5e/0x80 [ 4487.103014][ T254] fib6_nh_init+0x3d8/0x1580 [ 4487.103014][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4487.103014][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4487.103014][ T254] ipv6_add_addr+0x411/0x2000 [ 4487.103014][ T254] inet6_addr_add+0x30e/0xa40 [ 4487.103014][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4487.103014][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4487.103014][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.103014][ T254] netlink_unicast+0x449/0x710 [ 4487.103014][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.103014][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.103014][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.103014][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.103014][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.103014][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4487.103014][ T254] [ 4487.105282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.105282][ T254] netdev_get_by_index+0x5e/0x80 [ 4487.105282][ T254] fib6_nh_init+0x3d8/0x1580 [ 4487.105282][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4487.105282][ T254] ip6_route_add+0x1c/0x140 [ 4487.105282][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4487.105282][ T254] addrconf_add_dev+0xe2/0x170 [ 4487.105282][ T254] inet6_addr_add+0x12f/0xa40 [ 4487.105282][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4487.105282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4487.105282][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.105282][ T254] netlink_unicast+0x449/0x710 [ 4487.105282][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.105282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.105282][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.105282][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.105282][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.105282][ T254] [ 4487.107505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.107505][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4487.107505][ T254] ipv6_find_idev+0x102/0x170 [ 4487.107505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4487.107505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4487.107505][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.107505][ T254] netlink_unicast+0x449/0x710 [ 4487.107505][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.107505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.107505][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.107505][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.107505][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.107505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4487.107505][ T254] [ 4487.109247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4487.109247][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4487.109247][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4487.109247][ T254] ipv6_find_idev+0x102/0x170 [ 4487.109247][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4487.109247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4487.109247][ T254] netlink_rcv_skb+0x130/0x360 [ 4487.109247][ T254] netlink_unicast+0x449/0x710 [ 4487.109247][ T254] netlink_sendmsg+0x723/0xbe0 [ 4487.109247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4487.109247][ T254] ___sys_sendmsg+0xee/0x170 [ 4487.109247][ T254] __sys_sendmsg+0xcd/0x170 [ 4487.109247][ T254] do_syscall_64+0xc6/0x1e0 [ 4487.109247][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4487.109247][ T254] [ 4497.239845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4497.240334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.240334][ T254] dst_init+0x84/0x4a0 [ 4497.240334][ T254] dst_alloc+0x97/0x150 [ 4497.240334][ T254] ip6_dst_alloc+0x23/0x90 [ 4497.240334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4497.240334][ T254] ip6_pol_route+0x56f/0x840 [ 4497.240334][ T254] fib6_rule_lookup+0x334/0x630 [ 4497.240334][ T254] ip6_route_output_flags+0x259/0x480 [ 4497.240334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4497.240334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4497.240334][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.240334][ T254] netlink_unicast+0x449/0x710 [ 4497.240334][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.240334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.240334][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.240334][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.240334][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.240334][ T254] [ 4497.242553][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.242553][ T254] netdev_get_by_index+0x5e/0x80 [ 4497.242553][ T254] fib6_nh_init+0x3d8/0x1580 [ 4497.242553][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4497.242553][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4497.242553][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4497.242553][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4497.242553][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4497.242553][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4497.242553][ T254] addrconf_dad_begin+0x310/0x670 [ 4497.242553][ T254] addrconf_dad_work+0x10b/0xab0 [ 4497.242553][ T254] process_one_work+0x84d/0x18a0 [ 4497.242553][ T254] worker_thread+0x587/0xd30 [ 4497.242553][ T254] kthread+0x28a/0x350 [ 4497.242553][ T254] ret_from_fork+0x31/0x70 [ 4497.242553][ T254] ret_from_fork_asm+0x1a/0x30 [ 4497.242553][ T254] [ 4497.244723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.244723][ T254] netdev_get_by_index+0x5e/0x80 [ 4497.244723][ T254] fib6_nh_init+0x3d8/0x1580 [ 4497.244723][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4497.244723][ T254] ip6_route_add+0x1c/0x140 [ 4497.244723][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4497.244723][ T254] inet6_addr_add+0x4f8/0xa40 [ 4497.244723][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4497.244723][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4497.244723][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.244723][ T254] netlink_unicast+0x449/0x710 [ 4497.244723][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.244723][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.244723][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.244723][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.244723][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.244723][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4497.244723][ T254] [ 4497.247035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.247035][ T254] netdev_get_by_index+0x5e/0x80 [ 4497.247035][ T254] fib6_nh_init+0x3d8/0x1580 [ 4497.247035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4497.247035][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4497.247035][ T254] ipv6_add_addr+0x411/0x2000 [ 4497.247035][ T254] inet6_addr_add+0x30e/0xa40 [ 4497.247035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4497.247035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4497.247035][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.247035][ T254] netlink_unicast+0x449/0x710 [ 4497.247035][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.247035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.247035][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.247035][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.247035][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.247035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4497.247035][ T254] [ 4497.249300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.249300][ T254] netdev_get_by_index+0x5e/0x80 [ 4497.249300][ T254] fib6_nh_init+0x3d8/0x1580 [ 4497.249300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4497.249300][ T254] ip6_route_add+0x1c/0x140 [ 4497.249300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4497.249300][ T254] addrconf_add_dev+0xe2/0x170 [ 4497.249300][ T254] inet6_addr_add+0x12f/0xa40 [ 4497.249300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4497.249300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4497.249300][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.249300][ T254] netlink_unicast+0x449/0x710 [ 4497.249300][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.249300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.249300][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.249300][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.249300][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.249300][ T254] [ 4497.251514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.251514][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4497.251514][ T254] ipv6_find_idev+0x102/0x170 [ 4497.251514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4497.251514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4497.251514][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.251514][ T254] netlink_unicast+0x449/0x710 [ 4497.251514][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.251514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.251514][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.251514][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.251514][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.251514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4497.251514][ T254] [ 4497.253294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4497.253294][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4497.253294][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4497.253294][ T254] ipv6_find_idev+0x102/0x170 [ 4497.253294][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4497.253294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4497.253294][ T254] netlink_rcv_skb+0x130/0x360 [ 4497.253294][ T254] netlink_unicast+0x449/0x710 [ 4497.253294][ T254] netlink_sendmsg+0x723/0xbe0 [ 4497.253294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4497.253294][ T254] ___sys_sendmsg+0xee/0x170 [ 4497.253294][ T254] __sys_sendmsg+0xcd/0x170 [ 4497.253294][ T254] do_syscall_64+0xc6/0x1e0 [ 4497.253294][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4497.253294][ T254] [ 4507.351840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4507.352323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.352323][ T254] dst_init+0x84/0x4a0 [ 4507.352323][ T254] dst_alloc+0x97/0x150 [ 4507.352323][ T254] ip6_dst_alloc+0x23/0x90 [ 4507.352323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4507.352323][ T254] ip6_pol_route+0x56f/0x840 [ 4507.352323][ T254] fib6_rule_lookup+0x334/0x630 [ 4507.352323][ T254] ip6_route_output_flags+0x259/0x480 [ 4507.352323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4507.352323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4507.352323][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.352323][ T254] netlink_unicast+0x449/0x710 [ 4507.352323][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.352323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.352323][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.352323][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.352323][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.352323][ T254] [ 4507.354547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.354547][ T254] netdev_get_by_index+0x5e/0x80 [ 4507.354547][ T254] fib6_nh_init+0x3d8/0x1580 [ 4507.354547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4507.354547][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4507.354547][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4507.354547][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4507.354547][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4507.354547][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4507.354547][ T254] addrconf_dad_begin+0x310/0x670 [ 4507.354547][ T254] addrconf_dad_work+0x10b/0xab0 [ 4507.354547][ T254] process_one_work+0x84d/0x18a0 [ 4507.354547][ T254] worker_thread+0x587/0xd30 [ 4507.354547][ T254] kthread+0x28a/0x350 [ 4507.354547][ T254] ret_from_fork+0x31/0x70 [ 4507.354547][ T254] ret_from_fork_asm+0x1a/0x30 [ 4507.354547][ T254] [ 4507.356731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.356731][ T254] netdev_get_by_index+0x5e/0x80 [ 4507.356731][ T254] fib6_nh_init+0x3d8/0x1580 [ 4507.356731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4507.356731][ T254] ip6_route_add+0x1c/0x140 [ 4507.356731][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4507.356731][ T254] inet6_addr_add+0x4f8/0xa40 [ 4507.356731][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4507.356731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4507.356731][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.356731][ T254] netlink_unicast+0x449/0x710 [ 4507.356731][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.356731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.356731][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.356731][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.356731][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.356731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4507.356731][ T254] [ 4507.358992][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.358992][ T254] netdev_get_by_index+0x5e/0x80 [ 4507.358992][ T254] fib6_nh_init+0x3d8/0x1580 [ 4507.358992][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4507.358992][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4507.358992][ T254] ipv6_add_addr+0x411/0x2000 [ 4507.358992][ T254] inet6_addr_add+0x30e/0xa40 [ 4507.358992][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4507.358992][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4507.358992][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.358992][ T254] netlink_unicast+0x449/0x710 [ 4507.358992][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.358992][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.358992][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.358992][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.358992][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.358992][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4507.358992][ T254] [ 4507.361278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.361278][ T254] netdev_get_by_index+0x5e/0x80 [ 4507.361278][ T254] fib6_nh_init+0x3d8/0x1580 [ 4507.361278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4507.361278][ T254] ip6_route_add+0x1c/0x140 [ 4507.361278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4507.361278][ T254] addrconf_add_dev+0xe2/0x170 [ 4507.361278][ T254] inet6_addr_add+0x12f/0xa40 [ 4507.361278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4507.361278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4507.361278][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.361278][ T254] netlink_unicast+0x449/0x710 [ 4507.361278][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.361278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.361278][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.361278][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.361278][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.361278][ T254] [ 4507.363500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.363500][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4507.363500][ T254] ipv6_find_idev+0x102/0x170 [ 4507.363500][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4507.363500][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4507.363500][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.363500][ T254] netlink_unicast+0x449/0x710 [ 4507.363500][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.363500][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.363500][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.363500][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.363500][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.363500][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4507.363500][ T254] [ 4507.365312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4507.365312][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4507.365312][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4507.365312][ T254] ipv6_find_idev+0x102/0x170 [ 4507.365312][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4507.365312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4507.365312][ T254] netlink_rcv_skb+0x130/0x360 [ 4507.365312][ T254] netlink_unicast+0x449/0x710 [ 4507.365312][ T254] netlink_sendmsg+0x723/0xbe0 [ 4507.365312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4507.365312][ T254] ___sys_sendmsg+0xee/0x170 [ 4507.365312][ T254] __sys_sendmsg+0xcd/0x170 [ 4507.365312][ T254] do_syscall_64+0xc6/0x1e0 [ 4507.365312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4507.365312][ T254] [ 4517.551837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4517.552306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.552306][ T254] dst_init+0x84/0x4a0 [ 4517.552306][ T254] dst_alloc+0x97/0x150 [ 4517.552306][ T254] ip6_dst_alloc+0x23/0x90 [ 4517.552306][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4517.552306][ T254] ip6_pol_route+0x56f/0x840 [ 4517.552306][ T254] fib6_rule_lookup+0x334/0x630 [ 4517.552306][ T254] ip6_route_output_flags+0x259/0x480 [ 4517.552306][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4517.552306][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4517.552306][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.552306][ T254] netlink_unicast+0x449/0x710 [ 4517.552306][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.552306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.552306][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.552306][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.552306][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.552306][ T254] [ 4517.554502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.554502][ T254] netdev_get_by_index+0x5e/0x80 [ 4517.554502][ T254] fib6_nh_init+0x3d8/0x1580 [ 4517.554502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4517.554502][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4517.554502][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4517.554502][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4517.554502][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4517.554502][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4517.554502][ T254] addrconf_dad_begin+0x310/0x670 [ 4517.554502][ T254] addrconf_dad_work+0x10b/0xab0 [ 4517.554502][ T254] process_one_work+0x84d/0x18a0 [ 4517.554502][ T254] worker_thread+0x587/0xd30 [ 4517.554502][ T254] kthread+0x28a/0x350 [ 4517.554502][ T254] ret_from_fork+0x31/0x70 [ 4517.554502][ T254] ret_from_fork_asm+0x1a/0x30 [ 4517.554502][ T254] [ 4517.556663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.556663][ T254] netdev_get_by_index+0x5e/0x80 [ 4517.556663][ T254] fib6_nh_init+0x3d8/0x1580 [ 4517.556663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4517.556663][ T254] ip6_route_add+0x1c/0x140 [ 4517.556663][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4517.556663][ T254] inet6_addr_add+0x4f8/0xa40 [ 4517.556663][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4517.556663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4517.556663][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.556663][ T254] netlink_unicast+0x449/0x710 [ 4517.556663][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.556663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.556663][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.556663][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.556663][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.556663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4517.556663][ T254] [ 4517.558897][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.558897][ T254] netdev_get_by_index+0x5e/0x80 [ 4517.558897][ T254] fib6_nh_init+0x3d8/0x1580 [ 4517.558897][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4517.558897][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4517.558897][ T254] ipv6_add_addr+0x411/0x2000 [ 4517.558897][ T254] inet6_addr_add+0x30e/0xa40 [ 4517.558897][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4517.558897][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4517.558897][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.558897][ T254] netlink_unicast+0x449/0x710 [ 4517.558897][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.558897][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.558897][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.558897][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.558897][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.558897][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4517.558897][ T254] [ 4517.561132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.561132][ T254] netdev_get_by_index+0x5e/0x80 [ 4517.561132][ T254] fib6_nh_init+0x3d8/0x1580 [ 4517.561132][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4517.561132][ T254] ip6_route_add+0x1c/0x140 [ 4517.561132][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4517.561132][ T254] addrconf_add_dev+0xe2/0x170 [ 4517.561132][ T254] inet6_addr_add+0x12f/0xa40 [ 4517.561132][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4517.561132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4517.561132][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.561132][ T254] netlink_unicast+0x449/0x710 [ 4517.561132][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.561132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.561132][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.561132][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.561132][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.561132][ T254] [ 4517.563326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.563326][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4517.563326][ T254] ipv6_find_idev+0x102/0x170 [ 4517.563326][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4517.563326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4517.563326][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.563326][ T254] netlink_unicast+0x449/0x710 [ 4517.563326][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.563326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.563326][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.563326][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.563326][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.563326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4517.563326][ T254] [ 4517.565047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4517.565047][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4517.565047][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4517.565047][ T254] ipv6_find_idev+0x102/0x170 [ 4517.565047][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4517.565047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4517.565047][ T254] netlink_rcv_skb+0x130/0x360 [ 4517.565047][ T254] netlink_unicast+0x449/0x710 [ 4517.565047][ T254] netlink_sendmsg+0x723/0xbe0 [ 4517.565047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4517.565047][ T254] ___sys_sendmsg+0xee/0x170 [ 4517.565047][ T254] __sys_sendmsg+0xcd/0x170 [ 4517.565047][ T254] do_syscall_64+0xc6/0x1e0 [ 4517.565047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4517.565047][ T254] [ 4527.615846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4527.616335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.616335][ T254] dst_init+0x84/0x4a0 [ 4527.616335][ T254] dst_alloc+0x97/0x150 [ 4527.616335][ T254] ip6_dst_alloc+0x23/0x90 [ 4527.616335][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4527.616335][ T254] ip6_pol_route+0x56f/0x840 [ 4527.616335][ T254] fib6_rule_lookup+0x334/0x630 [ 4527.616335][ T254] ip6_route_output_flags+0x259/0x480 [ 4527.616335][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4527.616335][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4527.616335][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.616335][ T254] netlink_unicast+0x449/0x710 [ 4527.616335][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.616335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.616335][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.616335][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.616335][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.616335][ T254] [ 4527.618523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.618523][ T254] netdev_get_by_index+0x5e/0x80 [ 4527.618523][ T254] fib6_nh_init+0x3d8/0x1580 [ 4527.618523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4527.618523][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4527.618523][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4527.618523][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4527.618523][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4527.618523][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4527.618523][ T254] addrconf_dad_begin+0x310/0x670 [ 4527.618523][ T254] addrconf_dad_work+0x10b/0xab0 [ 4527.618523][ T254] process_one_work+0x84d/0x18a0 [ 4527.618523][ T254] worker_thread+0x587/0xd30 [ 4527.618523][ T254] kthread+0x28a/0x350 [ 4527.618523][ T254] ret_from_fork+0x31/0x70 [ 4527.618523][ T254] ret_from_fork_asm+0x1a/0x30 [ 4527.618523][ T254] [ 4527.620664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.620664][ T254] netdev_get_by_index+0x5e/0x80 [ 4527.620664][ T254] fib6_nh_init+0x3d8/0x1580 [ 4527.620664][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4527.620664][ T254] ip6_route_add+0x1c/0x140 [ 4527.620664][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4527.620664][ T254] inet6_addr_add+0x4f8/0xa40 [ 4527.620664][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4527.620664][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4527.620664][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.620664][ T254] netlink_unicast+0x449/0x710 [ 4527.620664][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.620664][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.620664][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.620664][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.620664][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.620664][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4527.620664][ T254] [ 4527.622899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.622899][ T254] netdev_get_by_index+0x5e/0x80 [ 4527.622899][ T254] fib6_nh_init+0x3d8/0x1580 [ 4527.622899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4527.622899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4527.622899][ T254] ipv6_add_addr+0x411/0x2000 [ 4527.622899][ T254] inet6_addr_add+0x30e/0xa40 [ 4527.622899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4527.622899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4527.622899][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.622899][ T254] netlink_unicast+0x449/0x710 [ 4527.622899][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.622899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.622899][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.622899][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.622899][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.622899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4527.622899][ T254] [ 4527.625142][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.625142][ T254] netdev_get_by_index+0x5e/0x80 [ 4527.625142][ T254] fib6_nh_init+0x3d8/0x1580 [ 4527.625142][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4527.625142][ T254] ip6_route_add+0x1c/0x140 [ 4527.625142][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4527.625142][ T254] addrconf_add_dev+0xe2/0x170 [ 4527.625142][ T254] inet6_addr_add+0x12f/0xa40 [ 4527.625142][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4527.625142][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4527.625142][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.625142][ T254] netlink_unicast+0x449/0x710 [ 4527.625142][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.625142][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.625142][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.625142][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.625142][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.625142][ T254] [ 4527.627352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.627352][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4527.627352][ T254] ipv6_find_idev+0x102/0x170 [ 4527.627352][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4527.627352][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4527.627352][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.627352][ T254] netlink_unicast+0x449/0x710 [ 4527.627352][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.627352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.627352][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.627352][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.627352][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.627352][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4527.627352][ T254] [ 4527.629078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4527.629078][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4527.629078][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4527.629078][ T254] ipv6_find_idev+0x102/0x170 [ 4527.629078][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4527.629078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4527.629078][ T254] netlink_rcv_skb+0x130/0x360 [ 4527.629078][ T254] netlink_unicast+0x449/0x710 [ 4527.629078][ T254] netlink_sendmsg+0x723/0xbe0 [ 4527.629078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4527.629078][ T254] ___sys_sendmsg+0xee/0x170 [ 4527.629078][ T254] __sys_sendmsg+0xcd/0x170 [ 4527.629078][ T254] do_syscall_64+0xc6/0x1e0 [ 4527.629078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4527.629078][ T254] [ 4537.871843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4537.872315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.872315][ T254] dst_init+0x84/0x4a0 [ 4537.872315][ T254] dst_alloc+0x97/0x150 [ 4537.872315][ T254] ip6_dst_alloc+0x23/0x90 [ 4537.872315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4537.872315][ T254] ip6_pol_route+0x56f/0x840 [ 4537.872315][ T254] fib6_rule_lookup+0x334/0x630 [ 4537.872315][ T254] ip6_route_output_flags+0x259/0x480 [ 4537.872315][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4537.872315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4537.872315][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.872315][ T254] netlink_unicast+0x449/0x710 [ 4537.872315][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.872315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.872315][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.872315][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.872315][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.872315][ T254] [ 4537.874502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.874502][ T254] netdev_get_by_index+0x5e/0x80 [ 4537.874502][ T254] fib6_nh_init+0x3d8/0x1580 [ 4537.874502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4537.874502][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4537.874502][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4537.874502][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4537.874502][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4537.874502][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4537.874502][ T254] addrconf_dad_begin+0x310/0x670 [ 4537.874502][ T254] addrconf_dad_work+0x10b/0xab0 [ 4537.874502][ T254] process_one_work+0x84d/0x18a0 [ 4537.874502][ T254] worker_thread+0x587/0xd30 [ 4537.874502][ T254] kthread+0x28a/0x350 [ 4537.874502][ T254] ret_from_fork+0x31/0x70 [ 4537.874502][ T254] ret_from_fork_asm+0x1a/0x30 [ 4537.874502][ T254] [ 4537.876654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.876654][ T254] netdev_get_by_index+0x5e/0x80 [ 4537.876654][ T254] fib6_nh_init+0x3d8/0x1580 [ 4537.876654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4537.876654][ T254] ip6_route_add+0x1c/0x140 [ 4537.876654][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4537.876654][ T254] inet6_addr_add+0x4f8/0xa40 [ 4537.876654][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4537.876654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4537.876654][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.876654][ T254] netlink_unicast+0x449/0x710 [ 4537.876654][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.876654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.876654][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.876654][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.876654][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.876654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4537.876654][ T254] [ 4537.878884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.878884][ T254] netdev_get_by_index+0x5e/0x80 [ 4537.878884][ T254] fib6_nh_init+0x3d8/0x1580 [ 4537.878884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4537.878884][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4537.878884][ T254] ipv6_add_addr+0x411/0x2000 [ 4537.878884][ T254] inet6_addr_add+0x30e/0xa40 [ 4537.878884][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4537.878884][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4537.878884][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.878884][ T254] netlink_unicast+0x449/0x710 [ 4537.878884][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.878884][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.878884][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.878884][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.878884][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.878884][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4537.878884][ T254] [ 4537.881119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.881119][ T254] netdev_get_by_index+0x5e/0x80 [ 4537.881119][ T254] fib6_nh_init+0x3d8/0x1580 [ 4537.881119][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4537.881119][ T254] ip6_route_add+0x1c/0x140 [ 4537.881119][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4537.881119][ T254] addrconf_add_dev+0xe2/0x170 [ 4537.881119][ T254] inet6_addr_add+0x12f/0xa40 [ 4537.881119][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4537.881119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4537.881119][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.881119][ T254] netlink_unicast+0x449/0x710 [ 4537.881119][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.881119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.881119][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.881119][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.881119][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.881119][ T254] [ 4537.883308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.883308][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4537.883308][ T254] ipv6_find_idev+0x102/0x170 [ 4537.883308][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4537.883308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4537.883308][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.883308][ T254] netlink_unicast+0x449/0x710 [ 4537.883308][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.883308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.883308][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.883308][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.883308][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.883308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4537.883308][ T254] [ 4537.885036][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4537.885036][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4537.885036][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4537.885036][ T254] ipv6_find_idev+0x102/0x170 [ 4537.885036][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4537.885036][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4537.885036][ T254] netlink_rcv_skb+0x130/0x360 [ 4537.885036][ T254] netlink_unicast+0x449/0x710 [ 4537.885036][ T254] netlink_sendmsg+0x723/0xbe0 [ 4537.885036][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4537.885036][ T254] ___sys_sendmsg+0xee/0x170 [ 4537.885036][ T254] __sys_sendmsg+0xcd/0x170 [ 4537.885036][ T254] do_syscall_64+0xc6/0x1e0 [ 4537.885036][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4537.885036][ T254] [ 4548.127855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4548.128320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.128320][ T254] dst_init+0x84/0x4a0 [ 4548.128320][ T254] dst_alloc+0x97/0x150 [ 4548.128320][ T254] ip6_dst_alloc+0x23/0x90 [ 4548.128320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4548.128320][ T254] ip6_pol_route+0x56f/0x840 [ 4548.128320][ T254] fib6_rule_lookup+0x334/0x630 [ 4548.128320][ T254] ip6_route_output_flags+0x259/0x480 [ 4548.128320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4548.128320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4548.128320][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.128320][ T254] netlink_unicast+0x449/0x710 [ 4548.128320][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.128320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.128320][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.128320][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.128320][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.128320][ T254] [ 4548.130510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.130510][ T254] netdev_get_by_index+0x5e/0x80 [ 4548.130510][ T254] fib6_nh_init+0x3d8/0x1580 [ 4548.130510][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4548.130510][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4548.130510][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4548.130510][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4548.130510][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4548.130510][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4548.130510][ T254] addrconf_dad_begin+0x310/0x670 [ 4548.130510][ T254] addrconf_dad_work+0x10b/0xab0 [ 4548.130510][ T254] process_one_work+0x84d/0x18a0 [ 4548.130510][ T254] worker_thread+0x587/0xd30 [ 4548.130510][ T254] kthread+0x28a/0x350 [ 4548.130510][ T254] ret_from_fork+0x31/0x70 [ 4548.130510][ T254] ret_from_fork_asm+0x1a/0x30 [ 4548.130510][ T254] [ 4548.132740][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.132740][ T254] netdev_get_by_index+0x5e/0x80 [ 4548.132740][ T254] fib6_nh_init+0x3d8/0x1580 [ 4548.132740][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4548.132740][ T254] ip6_route_add+0x1c/0x140 [ 4548.132740][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4548.132740][ T254] inet6_addr_add+0x4f8/0xa40 [ 4548.132740][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4548.132740][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4548.132740][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.132740][ T254] netlink_unicast+0x449/0x710 [ 4548.132740][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.132740][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.132740][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.132740][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.132740][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.132740][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4548.132740][ T254] [ 4548.134983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.134983][ T254] netdev_get_by_index+0x5e/0x80 [ 4548.134983][ T254] fib6_nh_init+0x3d8/0x1580 [ 4548.134983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4548.134983][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4548.134983][ T254] ipv6_add_addr+0x411/0x2000 [ 4548.134983][ T254] inet6_addr_add+0x30e/0xa40 [ 4548.134983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4548.134983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4548.134983][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.134983][ T254] netlink_unicast+0x449/0x710 [ 4548.134983][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.134983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.134983][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.134983][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.134983][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.134983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4548.134983][ T254] [ 4548.137226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.137226][ T254] netdev_get_by_index+0x5e/0x80 [ 4548.137226][ T254] fib6_nh_init+0x3d8/0x1580 [ 4548.137226][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4548.137226][ T254] ip6_route_add+0x1c/0x140 [ 4548.137226][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4548.137226][ T254] addrconf_add_dev+0xe2/0x170 [ 4548.137226][ T254] inet6_addr_add+0x12f/0xa40 [ 4548.137226][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4548.137226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4548.137226][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.137226][ T254] netlink_unicast+0x449/0x710 [ 4548.137226][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.137226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.137226][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.137226][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.137226][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.137226][ T254] [ 4548.139424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.139424][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4548.139424][ T254] ipv6_find_idev+0x102/0x170 [ 4548.139424][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4548.139424][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4548.139424][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.139424][ T254] netlink_unicast+0x449/0x710 [ 4548.139424][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.139424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.139424][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.139424][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.139424][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.139424][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4548.139424][ T254] [ 4548.141144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4548.141144][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4548.141144][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4548.141144][ T254] ipv6_find_idev+0x102/0x170 [ 4548.141144][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4548.141144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4548.141144][ T254] netlink_rcv_skb+0x130/0x360 [ 4548.141144][ T254] netlink_unicast+0x449/0x710 [ 4548.141144][ T254] netlink_sendmsg+0x723/0xbe0 [ 4548.141144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4548.141144][ T254] ___sys_sendmsg+0xee/0x170 [ 4548.141144][ T254] __sys_sendmsg+0xcd/0x170 [ 4548.141144][ T254] do_syscall_64+0xc6/0x1e0 [ 4548.141144][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4548.141144][ T254] [ 4558.383843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4558.384316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.384316][ T254] dst_init+0x84/0x4a0 [ 4558.384316][ T254] dst_alloc+0x97/0x150 [ 4558.384316][ T254] ip6_dst_alloc+0x23/0x90 [ 4558.384316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4558.384316][ T254] ip6_pol_route+0x56f/0x840 [ 4558.384316][ T254] fib6_rule_lookup+0x334/0x630 [ 4558.384316][ T254] ip6_route_output_flags+0x259/0x480 [ 4558.384316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4558.384316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4558.384316][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.384316][ T254] netlink_unicast+0x449/0x710 [ 4558.384316][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.384316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.384316][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.384316][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.384316][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.384316][ T254] [ 4558.386514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.386514][ T254] netdev_get_by_index+0x5e/0x80 [ 4558.386514][ T254] fib6_nh_init+0x3d8/0x1580 [ 4558.386514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4558.386514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4558.386514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4558.386514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4558.386514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4558.386514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4558.386514][ T254] addrconf_dad_begin+0x310/0x670 [ 4558.386514][ T254] addrconf_dad_work+0x10b/0xab0 [ 4558.386514][ T254] process_one_work+0x84d/0x18a0 [ 4558.386514][ T254] worker_thread+0x587/0xd30 [ 4558.386514][ T254] kthread+0x28a/0x350 [ 4558.386514][ T254] ret_from_fork+0x31/0x70 [ 4558.386514][ T254] ret_from_fork_asm+0x1a/0x30 [ 4558.386514][ T254] [ 4558.388650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.388650][ T254] netdev_get_by_index+0x5e/0x80 [ 4558.388650][ T254] fib6_nh_init+0x3d8/0x1580 [ 4558.388650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4558.388650][ T254] ip6_route_add+0x1c/0x140 [ 4558.388650][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4558.388650][ T254] inet6_addr_add+0x4f8/0xa40 [ 4558.388650][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4558.388650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4558.388650][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.388650][ T254] netlink_unicast+0x449/0x710 [ 4558.388650][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.388650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.388650][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.388650][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.388650][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.388650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4558.388650][ T254] [ 4558.390881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.390881][ T254] netdev_get_by_index+0x5e/0x80 [ 4558.390881][ T254] fib6_nh_init+0x3d8/0x1580 [ 4558.390881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4558.390881][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4558.390881][ T254] ipv6_add_addr+0x411/0x2000 [ 4558.390881][ T254] inet6_addr_add+0x30e/0xa40 [ 4558.390881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4558.390881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4558.390881][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.390881][ T254] netlink_unicast+0x449/0x710 [ 4558.390881][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.390881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.390881][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.390881][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.390881][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.390881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4558.390881][ T254] [ 4558.393174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.393174][ T254] netdev_get_by_index+0x5e/0x80 [ 4558.393174][ T254] fib6_nh_init+0x3d8/0x1580 [ 4558.393174][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4558.393174][ T254] ip6_route_add+0x1c/0x140 [ 4558.393174][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4558.393174][ T254] addrconf_add_dev+0xe2/0x170 [ 4558.393174][ T254] inet6_addr_add+0x12f/0xa40 [ 4558.393174][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4558.393174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4558.393174][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.393174][ T254] netlink_unicast+0x449/0x710 [ 4558.393174][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.393174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.393174][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.393174][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.393174][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.393174][ T254] [ 4558.395378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.395378][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4558.395378][ T254] ipv6_find_idev+0x102/0x170 [ 4558.395378][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4558.395378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4558.395378][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.395378][ T254] netlink_unicast+0x449/0x710 [ 4558.395378][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.395378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.395378][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.395378][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.395378][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.395378][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4558.395378][ T254] [ 4558.397106][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4558.397106][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4558.397106][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4558.397106][ T254] ipv6_find_idev+0x102/0x170 [ 4558.397106][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4558.397106][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4558.397106][ T254] netlink_rcv_skb+0x130/0x360 [ 4558.397106][ T254] netlink_unicast+0x449/0x710 [ 4558.397106][ T254] netlink_sendmsg+0x723/0xbe0 [ 4558.397106][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4558.397106][ T254] ___sys_sendmsg+0xee/0x170 [ 4558.397106][ T254] __sys_sendmsg+0xcd/0x170 [ 4558.397106][ T254] do_syscall_64+0xc6/0x1e0 [ 4558.397106][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4558.397106][ T254] [ 4568.639843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4568.640331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.640331][ T254] dst_init+0x84/0x4a0 [ 4568.640331][ T254] dst_alloc+0x97/0x150 [ 4568.640331][ T254] ip6_dst_alloc+0x23/0x90 [ 4568.640331][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4568.640331][ T254] ip6_pol_route+0x56f/0x840 [ 4568.640331][ T254] fib6_rule_lookup+0x334/0x630 [ 4568.640331][ T254] ip6_route_output_flags+0x259/0x480 [ 4568.640331][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4568.640331][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4568.640331][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.640331][ T254] netlink_unicast+0x449/0x710 [ 4568.640331][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.640331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.640331][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.640331][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.640331][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.640331][ T254] [ 4568.642519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.642519][ T254] netdev_get_by_index+0x5e/0x80 [ 4568.642519][ T254] fib6_nh_init+0x3d8/0x1580 [ 4568.642519][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4568.642519][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4568.642519][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4568.642519][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4568.642519][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4568.642519][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4568.642519][ T254] addrconf_dad_begin+0x310/0x670 [ 4568.642519][ T254] addrconf_dad_work+0x10b/0xab0 [ 4568.642519][ T254] process_one_work+0x84d/0x18a0 [ 4568.642519][ T254] worker_thread+0x587/0xd30 [ 4568.642519][ T254] kthread+0x28a/0x350 [ 4568.642519][ T254] ret_from_fork+0x31/0x70 [ 4568.642519][ T254] ret_from_fork_asm+0x1a/0x30 [ 4568.642519][ T254] [ 4568.644761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.644761][ T254] netdev_get_by_index+0x5e/0x80 [ 4568.644761][ T254] fib6_nh_init+0x3d8/0x1580 [ 4568.644761][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4568.644761][ T254] ip6_route_add+0x1c/0x140 [ 4568.644761][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4568.644761][ T254] inet6_addr_add+0x4f8/0xa40 [ 4568.644761][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4568.644761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4568.644761][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.644761][ T254] netlink_unicast+0x449/0x710 [ 4568.644761][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.644761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.644761][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.644761][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.644761][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.644761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4568.644761][ T254] [ 4568.647021][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.647021][ T254] netdev_get_by_index+0x5e/0x80 [ 4568.647021][ T254] fib6_nh_init+0x3d8/0x1580 [ 4568.647021][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4568.647021][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4568.647021][ T254] ipv6_add_addr+0x411/0x2000 [ 4568.647021][ T254] inet6_addr_add+0x30e/0xa40 [ 4568.647021][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4568.647021][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4568.647021][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.647021][ T254] netlink_unicast+0x449/0x710 [ 4568.647021][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.647021][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.647021][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.647021][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.647021][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.647021][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4568.647021][ T254] [ 4568.649259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.649259][ T254] netdev_get_by_index+0x5e/0x80 [ 4568.649259][ T254] fib6_nh_init+0x3d8/0x1580 [ 4568.649259][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4568.649259][ T254] ip6_route_add+0x1c/0x140 [ 4568.649259][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4568.649259][ T254] addrconf_add_dev+0xe2/0x170 [ 4568.649259][ T254] inet6_addr_add+0x12f/0xa40 [ 4568.649259][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4568.649259][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4568.649259][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.649259][ T254] netlink_unicast+0x449/0x710 [ 4568.649259][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.649259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.649259][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.649259][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.649259][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.649259][ T254] [ 4568.651461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.651461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4568.651461][ T254] ipv6_find_idev+0x102/0x170 [ 4568.651461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4568.651461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4568.651461][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.651461][ T254] netlink_unicast+0x449/0x710 [ 4568.651461][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.651461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.651461][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.651461][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.651461][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.651461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4568.651461][ T254] [ 4568.653179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4568.653179][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4568.653179][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4568.653179][ T254] ipv6_find_idev+0x102/0x170 [ 4568.653179][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4568.653179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4568.653179][ T254] netlink_rcv_skb+0x130/0x360 [ 4568.653179][ T254] netlink_unicast+0x449/0x710 [ 4568.653179][ T254] netlink_sendmsg+0x723/0xbe0 [ 4568.653179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4568.653179][ T254] ___sys_sendmsg+0xee/0x170 [ 4568.653179][ T254] __sys_sendmsg+0xcd/0x170 [ 4568.653179][ T254] do_syscall_64+0xc6/0x1e0 [ 4568.653179][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4568.653179][ T254] [ 4578.727838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4578.728300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.728300][ T254] dst_init+0x84/0x4a0 [ 4578.728300][ T254] dst_alloc+0x97/0x150 [ 4578.728300][ T254] ip6_dst_alloc+0x23/0x90 [ 4578.728300][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4578.728300][ T254] ip6_pol_route+0x56f/0x840 [ 4578.728300][ T254] fib6_rule_lookup+0x334/0x630 [ 4578.728300][ T254] ip6_route_output_flags+0x259/0x480 [ 4578.728300][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4578.728300][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4578.728300][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.728300][ T254] netlink_unicast+0x449/0x710 [ 4578.728300][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.728300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.728300][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.728300][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.728300][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.728300][ T254] [ 4578.730498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.730498][ T254] netdev_get_by_index+0x5e/0x80 [ 4578.730498][ T254] fib6_nh_init+0x3d8/0x1580 [ 4578.730498][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4578.730498][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4578.730498][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4578.730498][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4578.730498][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4578.730498][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4578.730498][ T254] addrconf_dad_begin+0x310/0x670 [ 4578.730498][ T254] addrconf_dad_work+0x10b/0xab0 [ 4578.730498][ T254] process_one_work+0x84d/0x18a0 [ 4578.730498][ T254] worker_thread+0x587/0xd30 [ 4578.730498][ T254] kthread+0x28a/0x350 [ 4578.730498][ T254] ret_from_fork+0x31/0x70 [ 4578.730498][ T254] ret_from_fork_asm+0x1a/0x30 [ 4578.730498][ T254] [ 4578.732634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.732634][ T254] netdev_get_by_index+0x5e/0x80 [ 4578.732634][ T254] fib6_nh_init+0x3d8/0x1580 [ 4578.732634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4578.732634][ T254] ip6_route_add+0x1c/0x140 [ 4578.732634][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4578.732634][ T254] inet6_addr_add+0x4f8/0xa40 [ 4578.732634][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4578.732634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4578.732634][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.732634][ T254] netlink_unicast+0x449/0x710 [ 4578.732634][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.732634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.732634][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.732634][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.732634][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.732634][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4578.732634][ T254] [ 4578.734882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.734882][ T254] netdev_get_by_index+0x5e/0x80 [ 4578.734882][ T254] fib6_nh_init+0x3d8/0x1580 [ 4578.734882][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4578.734882][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4578.734882][ T254] ipv6_add_addr+0x411/0x2000 [ 4578.734882][ T254] inet6_addr_add+0x30e/0xa40 [ 4578.734882][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4578.734882][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4578.734882][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.734882][ T254] netlink_unicast+0x449/0x710 [ 4578.734882][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.734882][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.734882][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.734882][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.734882][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.734882][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4578.734882][ T254] [ 4578.737114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.737114][ T254] netdev_get_by_index+0x5e/0x80 [ 4578.737114][ T254] fib6_nh_init+0x3d8/0x1580 [ 4578.737114][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4578.737114][ T254] ip6_route_add+0x1c/0x140 [ 4578.737114][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4578.737114][ T254] addrconf_add_dev+0xe2/0x170 [ 4578.737114][ T254] inet6_addr_add+0x12f/0xa40 [ 4578.737114][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4578.737114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4578.737114][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.737114][ T254] netlink_unicast+0x449/0x710 [ 4578.737114][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.737114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.737114][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.737114][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.737114][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.737114][ T254] [ 4578.739313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.739313][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4578.739313][ T254] ipv6_find_idev+0x102/0x170 [ 4578.739313][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4578.739313][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4578.739313][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.739313][ T254] netlink_unicast+0x449/0x710 [ 4578.739313][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.739313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.739313][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.739313][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.739313][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.739313][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4578.739313][ T254] [ 4578.741048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4578.741048][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4578.741048][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4578.741048][ T254] ipv6_find_idev+0x102/0x170 [ 4578.741048][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4578.741048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4578.741048][ T254] netlink_rcv_skb+0x130/0x360 [ 4578.741048][ T254] netlink_unicast+0x449/0x710 [ 4578.741048][ T254] netlink_sendmsg+0x723/0xbe0 [ 4578.741048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4578.741048][ T254] ___sys_sendmsg+0xee/0x170 [ 4578.741048][ T254] __sys_sendmsg+0xcd/0x170 [ 4578.741048][ T254] do_syscall_64+0xc6/0x1e0 [ 4578.741048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4578.741048][ T254] [ 4588.991850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4588.992323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4588.992323][ T254] dst_init+0x84/0x4a0 [ 4588.992323][ T254] dst_alloc+0x97/0x150 [ 4588.992323][ T254] ip6_dst_alloc+0x23/0x90 [ 4588.992323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4588.992323][ T254] ip6_pol_route+0x56f/0x840 [ 4588.992323][ T254] fib6_rule_lookup+0x334/0x630 [ 4588.992323][ T254] ip6_route_output_flags+0x259/0x480 [ 4588.992323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4588.992323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4588.992323][ T254] netlink_rcv_skb+0x130/0x360 [ 4588.992323][ T254] netlink_unicast+0x449/0x710 [ 4588.992323][ T254] netlink_sendmsg+0x723/0xbe0 [ 4588.992323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4588.992323][ T254] ___sys_sendmsg+0xee/0x170 [ 4588.992323][ T254] __sys_sendmsg+0xcd/0x170 [ 4588.992323][ T254] do_syscall_64+0xc6/0x1e0 [ 4588.992323][ T254] [ 4588.994516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4588.994516][ T254] netdev_get_by_index+0x5e/0x80 [ 4588.994516][ T254] fib6_nh_init+0x3d8/0x1580 [ 4588.994516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4588.994516][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4588.994516][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4588.994516][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4588.994516][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4588.994516][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4588.994516][ T254] addrconf_dad_begin+0x310/0x670 [ 4588.994516][ T254] addrconf_dad_work+0x10b/0xab0 [ 4588.994516][ T254] process_one_work+0x84d/0x18a0 [ 4588.994516][ T254] worker_thread+0x587/0xd30 [ 4588.994516][ T254] kthread+0x28a/0x350 [ 4588.994516][ T254] ret_from_fork+0x31/0x70 [ 4588.994516][ T254] ret_from_fork_asm+0x1a/0x30 [ 4588.994516][ T254] [ 4588.996668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4588.996668][ T254] netdev_get_by_index+0x5e/0x80 [ 4588.996668][ T254] fib6_nh_init+0x3d8/0x1580 [ 4588.996668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4588.996668][ T254] ip6_route_add+0x1c/0x140 [ 4588.996668][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4588.996668][ T254] inet6_addr_add+0x4f8/0xa40 [ 4588.996668][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4588.996668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4588.996668][ T254] netlink_rcv_skb+0x130/0x360 [ 4588.996668][ T254] netlink_unicast+0x449/0x710 [ 4588.996668][ T254] netlink_sendmsg+0x723/0xbe0 [ 4588.996668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4588.996668][ T254] ___sys_sendmsg+0xee/0x170 [ 4588.996668][ T254] __sys_sendmsg+0xcd/0x170 [ 4588.996668][ T254] do_syscall_64+0xc6/0x1e0 [ 4588.996668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4588.996668][ T254] [ 4588.998905][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4588.998905][ T254] netdev_get_by_index+0x5e/0x80 [ 4588.998905][ T254] fib6_nh_init+0x3d8/0x1580 [ 4588.998905][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4588.998905][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4588.998905][ T254] ipv6_add_addr+0x411/0x2000 [ 4588.998905][ T254] inet6_addr_add+0x30e/0xa40 [ 4588.998905][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4588.998905][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4588.998905][ T254] netlink_rcv_skb+0x130/0x360 [ 4588.998905][ T254] netlink_unicast+0x449/0x710 [ 4588.998905][ T254] netlink_sendmsg+0x723/0xbe0 [ 4588.998905][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4588.998905][ T254] ___sys_sendmsg+0xee/0x170 [ 4588.998905][ T254] __sys_sendmsg+0xcd/0x170 [ 4588.998905][ T254] do_syscall_64+0xc6/0x1e0 [ 4588.998905][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4588.998905][ T254] [ 4589.001145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4589.001145][ T254] netdev_get_by_index+0x5e/0x80 [ 4589.001145][ T254] fib6_nh_init+0x3d8/0x1580 [ 4589.001145][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4589.001145][ T254] ip6_route_add+0x1c/0x140 [ 4589.001145][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4589.001145][ T254] addrconf_add_dev+0xe2/0x170 [ 4589.001145][ T254] inet6_addr_add+0x12f/0xa40 [ 4589.001145][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4589.001145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4589.001145][ T254] netlink_rcv_skb+0x130/0x360 [ 4589.001145][ T254] netlink_unicast+0x449/0x710 [ 4589.001145][ T254] netlink_sendmsg+0x723/0xbe0 [ 4589.001145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4589.001145][ T254] ___sys_sendmsg+0xee/0x170 [ 4589.001145][ T254] __sys_sendmsg+0xcd/0x170 [ 4589.001145][ T254] do_syscall_64+0xc6/0x1e0 [ 4589.001145][ T254] [ 4589.003338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4589.003338][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4589.003338][ T254] ipv6_find_idev+0x102/0x170 [ 4589.003338][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4589.003338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4589.003338][ T254] netlink_rcv_skb+0x130/0x360 [ 4589.003338][ T254] netlink_unicast+0x449/0x710 [ 4589.003338][ T254] netlink_sendmsg+0x723/0xbe0 [ 4589.003338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4589.003338][ T254] ___sys_sendmsg+0xee/0x170 [ 4589.003338][ T254] __sys_sendmsg+0xcd/0x170 [ 4589.003338][ T254] do_syscall_64+0xc6/0x1e0 [ 4589.003338][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4589.003338][ T254] [ 4589.005062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4589.005062][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4589.005062][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4589.005062][ T254] ipv6_find_idev+0x102/0x170 [ 4589.005062][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4589.005062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4589.005062][ T254] netlink_rcv_skb+0x130/0x360 [ 4589.005062][ T254] netlink_unicast+0x449/0x710 [ 4589.005062][ T254] netlink_sendmsg+0x723/0xbe0 [ 4589.005062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4589.005062][ T254] ___sys_sendmsg+0xee/0x170 [ 4589.005062][ T254] __sys_sendmsg+0xcd/0x170 [ 4589.005062][ T254] do_syscall_64+0xc6/0x1e0 [ 4589.005062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4589.005062][ T254] [ 4599.095844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4599.096318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.096318][ T254] dst_init+0x84/0x4a0 [ 4599.096318][ T254] dst_alloc+0x97/0x150 [ 4599.096318][ T254] ip6_dst_alloc+0x23/0x90 [ 4599.096318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4599.096318][ T254] ip6_pol_route+0x56f/0x840 [ 4599.096318][ T254] fib6_rule_lookup+0x334/0x630 [ 4599.096318][ T254] ip6_route_output_flags+0x259/0x480 [ 4599.096318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4599.096318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4599.096318][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.096318][ T254] netlink_unicast+0x449/0x710 [ 4599.096318][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.096318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.096318][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.096318][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.096318][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.096318][ T254] [ 4599.098505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.098505][ T254] netdev_get_by_index+0x5e/0x80 [ 4599.098505][ T254] fib6_nh_init+0x3d8/0x1580 [ 4599.098505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4599.098505][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4599.098505][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4599.098505][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4599.098505][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4599.098505][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4599.098505][ T254] addrconf_dad_begin+0x310/0x670 [ 4599.098505][ T254] addrconf_dad_work+0x10b/0xab0 [ 4599.098505][ T254] process_one_work+0x84d/0x18a0 [ 4599.098505][ T254] worker_thread+0x587/0xd30 [ 4599.098505][ T254] kthread+0x28a/0x350 [ 4599.098505][ T254] ret_from_fork+0x31/0x70 [ 4599.098505][ T254] ret_from_fork_asm+0x1a/0x30 [ 4599.098505][ T254] [ 4599.100681][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.100681][ T254] netdev_get_by_index+0x5e/0x80 [ 4599.100681][ T254] fib6_nh_init+0x3d8/0x1580 [ 4599.100681][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4599.100681][ T254] ip6_route_add+0x1c/0x140 [ 4599.100681][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4599.100681][ T254] inet6_addr_add+0x4f8/0xa40 [ 4599.100681][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4599.100681][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4599.100681][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.100681][ T254] netlink_unicast+0x449/0x710 [ 4599.100681][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.100681][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.100681][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.100681][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.100681][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.100681][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4599.100681][ T254] [ 4599.102920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.102920][ T254] netdev_get_by_index+0x5e/0x80 [ 4599.102920][ T254] fib6_nh_init+0x3d8/0x1580 [ 4599.102920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4599.102920][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4599.102920][ T254] ipv6_add_addr+0x411/0x2000 [ 4599.102920][ T254] inet6_addr_add+0x30e/0xa40 [ 4599.102920][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4599.102920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4599.102920][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.102920][ T254] netlink_unicast+0x449/0x710 [ 4599.102920][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.102920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.102920][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.102920][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.102920][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.102920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4599.102920][ T254] [ 4599.105156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.105156][ T254] netdev_get_by_index+0x5e/0x80 [ 4599.105156][ T254] fib6_nh_init+0x3d8/0x1580 [ 4599.105156][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4599.105156][ T254] ip6_route_add+0x1c/0x140 [ 4599.105156][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4599.105156][ T254] addrconf_add_dev+0xe2/0x170 [ 4599.105156][ T254] inet6_addr_add+0x12f/0xa40 [ 4599.105156][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4599.105156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4599.105156][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.105156][ T254] netlink_unicast+0x449/0x710 [ 4599.105156][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.105156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.105156][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.105156][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.105156][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.105156][ T254] [ 4599.107366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.107366][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4599.107366][ T254] ipv6_find_idev+0x102/0x170 [ 4599.107366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4599.107366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4599.107366][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.107366][ T254] netlink_unicast+0x449/0x710 [ 4599.107366][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.107366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.107366][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.107366][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.107366][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.107366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4599.107366][ T254] [ 4599.109109][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4599.109109][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4599.109109][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4599.109109][ T254] ipv6_find_idev+0x102/0x170 [ 4599.109109][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4599.109109][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4599.109109][ T254] netlink_rcv_skb+0x130/0x360 [ 4599.109109][ T254] netlink_unicast+0x449/0x710 [ 4599.109109][ T254] netlink_sendmsg+0x723/0xbe0 [ 4599.109109][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4599.109109][ T254] ___sys_sendmsg+0xee/0x170 [ 4599.109109][ T254] __sys_sendmsg+0xcd/0x170 [ 4599.109109][ T254] do_syscall_64+0xc6/0x1e0 [ 4599.109109][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4599.109109][ T254] [ 4609.351851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4609.352316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.352316][ T254] dst_init+0x84/0x4a0 [ 4609.352316][ T254] dst_alloc+0x97/0x150 [ 4609.352316][ T254] ip6_dst_alloc+0x23/0x90 [ 4609.352316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4609.352316][ T254] ip6_pol_route+0x56f/0x840 [ 4609.352316][ T254] fib6_rule_lookup+0x334/0x630 [ 4609.352316][ T254] ip6_route_output_flags+0x259/0x480 [ 4609.352316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4609.352316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4609.352316][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.352316][ T254] netlink_unicast+0x449/0x710 [ 4609.352316][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.352316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.352316][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.352316][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.352316][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.352316][ T254] [ 4609.354510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.354510][ T254] netdev_get_by_index+0x5e/0x80 [ 4609.354510][ T254] fib6_nh_init+0x3d8/0x1580 [ 4609.354510][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4609.354510][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4609.354510][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4609.354510][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4609.354510][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4609.354510][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4609.354510][ T254] addrconf_dad_begin+0x310/0x670 [ 4609.354510][ T254] addrconf_dad_work+0x10b/0xab0 [ 4609.354510][ T254] process_one_work+0x84d/0x18a0 [ 4609.354510][ T254] worker_thread+0x587/0xd30 [ 4609.354510][ T254] kthread+0x28a/0x350 [ 4609.354510][ T254] ret_from_fork+0x31/0x70 [ 4609.354510][ T254] ret_from_fork_asm+0x1a/0x30 [ 4609.354510][ T254] [ 4609.356660][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.356660][ T254] netdev_get_by_index+0x5e/0x80 [ 4609.356660][ T254] fib6_nh_init+0x3d8/0x1580 [ 4609.356660][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4609.356660][ T254] ip6_route_add+0x1c/0x140 [ 4609.356660][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4609.356660][ T254] inet6_addr_add+0x4f8/0xa40 [ 4609.356660][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4609.356660][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4609.356660][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.356660][ T254] netlink_unicast+0x449/0x710 [ 4609.356660][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.356660][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.356660][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.356660][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.356660][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.356660][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4609.356660][ T254] [ 4609.358891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.358891][ T254] netdev_get_by_index+0x5e/0x80 [ 4609.358891][ T254] fib6_nh_init+0x3d8/0x1580 [ 4609.358891][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4609.358891][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4609.358891][ T254] ipv6_add_addr+0x411/0x2000 [ 4609.358891][ T254] inet6_addr_add+0x30e/0xa40 [ 4609.358891][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4609.358891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4609.358891][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.358891][ T254] netlink_unicast+0x449/0x710 [ 4609.358891][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.358891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.358891][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.358891][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.358891][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.358891][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4609.358891][ T254] [ 4609.361121][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.361121][ T254] netdev_get_by_index+0x5e/0x80 [ 4609.361121][ T254] fib6_nh_init+0x3d8/0x1580 [ 4609.361121][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4609.361121][ T254] ip6_route_add+0x1c/0x140 [ 4609.361121][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4609.361121][ T254] addrconf_add_dev+0xe2/0x170 [ 4609.361121][ T254] inet6_addr_add+0x12f/0xa40 [ 4609.361121][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4609.361121][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4609.361121][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.361121][ T254] netlink_unicast+0x449/0x710 [ 4609.361121][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.361121][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.361121][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.361121][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.361121][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.361121][ T254] [ 4609.363330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.363330][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4609.363330][ T254] ipv6_find_idev+0x102/0x170 [ 4609.363330][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4609.363330][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4609.363330][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.363330][ T254] netlink_unicast+0x449/0x710 [ 4609.363330][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.363330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.363330][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.363330][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.363330][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.363330][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4609.363330][ T254] [ 4609.365058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4609.365058][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4609.365058][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4609.365058][ T254] ipv6_find_idev+0x102/0x170 [ 4609.365058][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4609.365058][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4609.365058][ T254] netlink_rcv_skb+0x130/0x360 [ 4609.365058][ T254] netlink_unicast+0x449/0x710 [ 4609.365058][ T254] netlink_sendmsg+0x723/0xbe0 [ 4609.365058][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4609.365058][ T254] ___sys_sendmsg+0xee/0x170 [ 4609.365058][ T254] __sys_sendmsg+0xcd/0x170 [ 4609.365058][ T254] do_syscall_64+0xc6/0x1e0 [ 4609.365058][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4609.365058][ T254] [ 4619.607858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4619.608317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.608317][ T254] dst_init+0x84/0x4a0 [ 4619.608317][ T254] dst_alloc+0x97/0x150 [ 4619.608317][ T254] ip6_dst_alloc+0x23/0x90 [ 4619.608317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4619.608317][ T254] ip6_pol_route+0x56f/0x840 [ 4619.608317][ T254] fib6_rule_lookup+0x334/0x630 [ 4619.608317][ T254] ip6_route_output_flags+0x259/0x480 [ 4619.608317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4619.608317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4619.608317][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.608317][ T254] netlink_unicast+0x449/0x710 [ 4619.608317][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.608317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.608317][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.608317][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.608317][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.608317][ T254] [ 4619.610509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.610509][ T254] netdev_get_by_index+0x5e/0x80 [ 4619.610509][ T254] fib6_nh_init+0x3d8/0x1580 [ 4619.610509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4619.610509][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4619.610509][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4619.610509][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4619.610509][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4619.610509][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4619.610509][ T254] addrconf_dad_begin+0x310/0x670 [ 4619.610509][ T254] addrconf_dad_work+0x10b/0xab0 [ 4619.610509][ T254] process_one_work+0x84d/0x18a0 [ 4619.610509][ T254] worker_thread+0x587/0xd30 [ 4619.610509][ T254] kthread+0x28a/0x350 [ 4619.610509][ T254] ret_from_fork+0x31/0x70 [ 4619.610509][ T254] ret_from_fork_asm+0x1a/0x30 [ 4619.610509][ T254] [ 4619.612648][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.612648][ T254] netdev_get_by_index+0x5e/0x80 [ 4619.612648][ T254] fib6_nh_init+0x3d8/0x1580 [ 4619.612648][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4619.612648][ T254] ip6_route_add+0x1c/0x140 [ 4619.612648][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4619.612648][ T254] inet6_addr_add+0x4f8/0xa40 [ 4619.612648][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4619.612648][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4619.612648][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.612648][ T254] netlink_unicast+0x449/0x710 [ 4619.612648][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.612648][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.612648][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.612648][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.612648][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.612648][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4619.612648][ T254] [ 4619.614885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.614885][ T254] netdev_get_by_index+0x5e/0x80 [ 4619.614885][ T254] fib6_nh_init+0x3d8/0x1580 [ 4619.614885][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4619.614885][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4619.614885][ T254] ipv6_add_addr+0x411/0x2000 [ 4619.614885][ T254] inet6_addr_add+0x30e/0xa40 [ 4619.614885][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4619.614885][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4619.614885][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.614885][ T254] netlink_unicast+0x449/0x710 [ 4619.614885][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.614885][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.614885][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.614885][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.614885][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.614885][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4619.614885][ T254] [ 4619.617126][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.617126][ T254] netdev_get_by_index+0x5e/0x80 [ 4619.617126][ T254] fib6_nh_init+0x3d8/0x1580 [ 4619.617126][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4619.617126][ T254] ip6_route_add+0x1c/0x140 [ 4619.617126][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4619.617126][ T254] addrconf_add_dev+0xe2/0x170 [ 4619.617126][ T254] inet6_addr_add+0x12f/0xa40 [ 4619.617126][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4619.617126][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4619.617126][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.617126][ T254] netlink_unicast+0x449/0x710 [ 4619.617126][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.617126][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.617126][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.617126][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.617126][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.617126][ T254] [ 4619.619339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.619339][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4619.619339][ T254] ipv6_find_idev+0x102/0x170 [ 4619.619339][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4619.619339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4619.619339][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.619339][ T254] netlink_unicast+0x449/0x710 [ 4619.619339][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.619339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.619339][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.619339][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.619339][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.619339][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4619.619339][ T254] [ 4619.621060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4619.621060][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4619.621060][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4619.621060][ T254] ipv6_find_idev+0x102/0x170 [ 4619.621060][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4619.621060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4619.621060][ T254] netlink_rcv_skb+0x130/0x360 [ 4619.621060][ T254] netlink_unicast+0x449/0x710 [ 4619.621060][ T254] netlink_sendmsg+0x723/0xbe0 [ 4619.621060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4619.621060][ T254] ___sys_sendmsg+0xee/0x170 [ 4619.621060][ T254] __sys_sendmsg+0xcd/0x170 [ 4619.621060][ T254] do_syscall_64+0xc6/0x1e0 [ 4619.621060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4619.621060][ T254] [ 4629.863881][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4629.864349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.864349][ T254] dst_init+0x84/0x4a0 [ 4629.864349][ T254] dst_alloc+0x97/0x150 [ 4629.864349][ T254] ip6_dst_alloc+0x23/0x90 [ 4629.864349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4629.864349][ T254] ip6_pol_route+0x56f/0x840 [ 4629.864349][ T254] fib6_rule_lookup+0x334/0x630 [ 4629.864349][ T254] ip6_route_output_flags+0x259/0x480 [ 4629.864349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4629.864349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4629.864349][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.864349][ T254] netlink_unicast+0x449/0x710 [ 4629.864349][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.864349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.864349][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.864349][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.864349][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.864349][ T254] [ 4629.866547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.866547][ T254] netdev_get_by_index+0x5e/0x80 [ 4629.866547][ T254] fib6_nh_init+0x3d8/0x1580 [ 4629.866547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4629.866547][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4629.866547][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4629.866547][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4629.866547][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4629.866547][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4629.866547][ T254] addrconf_dad_begin+0x310/0x670 [ 4629.866547][ T254] addrconf_dad_work+0x10b/0xab0 [ 4629.866547][ T254] process_one_work+0x84d/0x18a0 [ 4629.866547][ T254] worker_thread+0x587/0xd30 [ 4629.866547][ T254] kthread+0x28a/0x350 [ 4629.866547][ T254] ret_from_fork+0x31/0x70 [ 4629.866547][ T254] ret_from_fork_asm+0x1a/0x30 [ 4629.866547][ T254] [ 4629.868691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.868691][ T254] netdev_get_by_index+0x5e/0x80 [ 4629.868691][ T254] fib6_nh_init+0x3d8/0x1580 [ 4629.868691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4629.868691][ T254] ip6_route_add+0x1c/0x140 [ 4629.868691][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4629.868691][ T254] inet6_addr_add+0x4f8/0xa40 [ 4629.868691][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4629.868691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4629.868691][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.868691][ T254] netlink_unicast+0x449/0x710 [ 4629.868691][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.868691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.868691][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.868691][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.868691][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.868691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4629.868691][ T254] [ 4629.870940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.870940][ T254] netdev_get_by_index+0x5e/0x80 [ 4629.870940][ T254] fib6_nh_init+0x3d8/0x1580 [ 4629.870940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4629.870940][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4629.870940][ T254] ipv6_add_addr+0x411/0x2000 [ 4629.870940][ T254] inet6_addr_add+0x30e/0xa40 [ 4629.870940][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4629.870940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4629.870940][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.870940][ T254] netlink_unicast+0x449/0x710 [ 4629.870940][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.870940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.870940][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.870940][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.870940][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.870940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4629.870940][ T254] [ 4629.873184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.873184][ T254] netdev_get_by_index+0x5e/0x80 [ 4629.873184][ T254] fib6_nh_init+0x3d8/0x1580 [ 4629.873184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4629.873184][ T254] ip6_route_add+0x1c/0x140 [ 4629.873184][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4629.873184][ T254] addrconf_add_dev+0xe2/0x170 [ 4629.873184][ T254] inet6_addr_add+0x12f/0xa40 [ 4629.873184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4629.873184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4629.873184][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.873184][ T254] netlink_unicast+0x449/0x710 [ 4629.873184][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.873184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.873184][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.873184][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.873184][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.873184][ T254] [ 4629.875771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.875771][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4629.875771][ T254] ipv6_find_idev+0x102/0x170 [ 4629.875771][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4629.875771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4629.875771][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.875771][ T254] netlink_unicast+0x449/0x710 [ 4629.875771][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.875771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.875771][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.875771][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.875771][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.875771][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4629.875771][ T254] [ 4629.877495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4629.877495][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4629.877495][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4629.877495][ T254] ipv6_find_idev+0x102/0x170 [ 4629.877495][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4629.877495][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4629.877495][ T254] netlink_rcv_skb+0x130/0x360 [ 4629.877495][ T254] netlink_unicast+0x449/0x710 [ 4629.877495][ T254] netlink_sendmsg+0x723/0xbe0 [ 4629.877495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4629.877495][ T254] ___sys_sendmsg+0xee/0x170 [ 4629.877495][ T254] __sys_sendmsg+0xcd/0x170 [ 4629.877495][ T254] do_syscall_64+0xc6/0x1e0 [ 4629.877495][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4629.877495][ T254] [ 4640.119844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4640.120323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.120323][ T254] dst_init+0x84/0x4a0 [ 4640.120323][ T254] dst_alloc+0x97/0x150 [ 4640.120323][ T254] ip6_dst_alloc+0x23/0x90 [ 4640.120323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4640.120323][ T254] ip6_pol_route+0x56f/0x840 [ 4640.120323][ T254] fib6_rule_lookup+0x334/0x630 [ 4640.120323][ T254] ip6_route_output_flags+0x259/0x480 [ 4640.120323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4640.120323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4640.120323][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.120323][ T254] netlink_unicast+0x449/0x710 [ 4640.120323][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.120323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.120323][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.120323][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.120323][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.120323][ T254] [ 4640.122534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.122534][ T254] netdev_get_by_index+0x5e/0x80 [ 4640.122534][ T254] fib6_nh_init+0x3d8/0x1580 [ 4640.122534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4640.122534][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4640.122534][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4640.122534][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4640.122534][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4640.122534][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4640.122534][ T254] addrconf_dad_begin+0x310/0x670 [ 4640.122534][ T254] addrconf_dad_work+0x10b/0xab0 [ 4640.122534][ T254] process_one_work+0x84d/0x18a0 [ 4640.122534][ T254] worker_thread+0x587/0xd30 [ 4640.122534][ T254] kthread+0x28a/0x350 [ 4640.122534][ T254] ret_from_fork+0x31/0x70 [ 4640.122534][ T254] ret_from_fork_asm+0x1a/0x30 [ 4640.122534][ T254] [ 4640.124709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.124709][ T254] netdev_get_by_index+0x5e/0x80 [ 4640.124709][ T254] fib6_nh_init+0x3d8/0x1580 [ 4640.124709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4640.124709][ T254] ip6_route_add+0x1c/0x140 [ 4640.124709][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4640.124709][ T254] inet6_addr_add+0x4f8/0xa40 [ 4640.124709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4640.124709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4640.124709][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.124709][ T254] netlink_unicast+0x449/0x710 [ 4640.124709][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.124709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.124709][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.124709][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.124709][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.124709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4640.124709][ T254] [ 4640.126991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.126991][ T254] netdev_get_by_index+0x5e/0x80 [ 4640.126991][ T254] fib6_nh_init+0x3d8/0x1580 [ 4640.126991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4640.126991][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4640.126991][ T254] ipv6_add_addr+0x411/0x2000 [ 4640.126991][ T254] inet6_addr_add+0x30e/0xa40 [ 4640.126991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4640.126991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4640.126991][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.126991][ T254] netlink_unicast+0x449/0x710 [ 4640.126991][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.126991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.126991][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.126991][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.126991][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.126991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4640.126991][ T254] [ 4640.129260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.129260][ T254] netdev_get_by_index+0x5e/0x80 [ 4640.129260][ T254] fib6_nh_init+0x3d8/0x1580 [ 4640.129260][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4640.129260][ T254] ip6_route_add+0x1c/0x140 [ 4640.129260][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4640.129260][ T254] addrconf_add_dev+0xe2/0x170 [ 4640.129260][ T254] inet6_addr_add+0x12f/0xa40 [ 4640.129260][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4640.129260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4640.129260][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.129260][ T254] netlink_unicast+0x449/0x710 [ 4640.129260][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.129260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.129260][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.129260][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.129260][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.129260][ T254] [ 4640.131479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.131479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4640.131479][ T254] ipv6_find_idev+0x102/0x170 [ 4640.131479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4640.131479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4640.131479][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.131479][ T254] netlink_unicast+0x449/0x710 [ 4640.131479][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.131479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.131479][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.131479][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.131479][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.131479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4640.131479][ T254] [ 4640.133221][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4640.133221][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4640.133221][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4640.133221][ T254] ipv6_find_idev+0x102/0x170 [ 4640.133221][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4640.133221][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4640.133221][ T254] netlink_rcv_skb+0x130/0x360 [ 4640.133221][ T254] netlink_unicast+0x449/0x710 [ 4640.133221][ T254] netlink_sendmsg+0x723/0xbe0 [ 4640.133221][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4640.133221][ T254] ___sys_sendmsg+0xee/0x170 [ 4640.133221][ T254] __sys_sendmsg+0xcd/0x170 [ 4640.133221][ T254] do_syscall_64+0xc6/0x1e0 [ 4640.133221][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4640.133221][ T254] [ 4650.375870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4650.376332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.376332][ T254] dst_init+0x84/0x4a0 [ 4650.376332][ T254] dst_alloc+0x97/0x150 [ 4650.376332][ T254] ip6_dst_alloc+0x23/0x90 [ 4650.376332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4650.376332][ T254] ip6_pol_route+0x56f/0x840 [ 4650.376332][ T254] fib6_rule_lookup+0x334/0x630 [ 4650.376332][ T254] ip6_route_output_flags+0x259/0x480 [ 4650.376332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4650.376332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4650.376332][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.376332][ T254] netlink_unicast+0x449/0x710 [ 4650.376332][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.376332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.376332][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.376332][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.376332][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.376332][ T254] [ 4650.378526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.378526][ T254] netdev_get_by_index+0x5e/0x80 [ 4650.378526][ T254] fib6_nh_init+0x3d8/0x1580 [ 4650.378526][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4650.378526][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4650.378526][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4650.378526][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4650.378526][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4650.378526][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4650.378526][ T254] addrconf_dad_begin+0x310/0x670 [ 4650.378526][ T254] addrconf_dad_work+0x10b/0xab0 [ 4650.378526][ T254] process_one_work+0x84d/0x18a0 [ 4650.378526][ T254] worker_thread+0x587/0xd30 [ 4650.378526][ T254] kthread+0x28a/0x350 [ 4650.378526][ T254] ret_from_fork+0x31/0x70 [ 4650.378526][ T254] ret_from_fork_asm+0x1a/0x30 [ 4650.378526][ T254] [ 4650.380672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.380672][ T254] netdev_get_by_index+0x5e/0x80 [ 4650.380672][ T254] fib6_nh_init+0x3d8/0x1580 [ 4650.380672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4650.380672][ T254] ip6_route_add+0x1c/0x140 [ 4650.380672][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4650.380672][ T254] inet6_addr_add+0x4f8/0xa40 [ 4650.380672][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4650.380672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4650.380672][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.380672][ T254] netlink_unicast+0x449/0x710 [ 4650.380672][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.380672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.380672][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.380672][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.380672][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.380672][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4650.380672][ T254] [ 4650.382934][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.382934][ T254] netdev_get_by_index+0x5e/0x80 [ 4650.382934][ T254] fib6_nh_init+0x3d8/0x1580 [ 4650.382934][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4650.382934][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4650.382934][ T254] ipv6_add_addr+0x411/0x2000 [ 4650.382934][ T254] inet6_addr_add+0x30e/0xa40 [ 4650.382934][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4650.382934][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4650.382934][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.382934][ T254] netlink_unicast+0x449/0x710 [ 4650.382934][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.382934][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.382934][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.382934][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.382934][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.382934][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4650.382934][ T254] [ 4650.385172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.385172][ T254] netdev_get_by_index+0x5e/0x80 [ 4650.385172][ T254] fib6_nh_init+0x3d8/0x1580 [ 4650.385172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4650.385172][ T254] ip6_route_add+0x1c/0x140 [ 4650.385172][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4650.385172][ T254] addrconf_add_dev+0xe2/0x170 [ 4650.385172][ T254] inet6_addr_add+0x12f/0xa40 [ 4650.385172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4650.385172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4650.385172][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.385172][ T254] netlink_unicast+0x449/0x710 [ 4650.385172][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.385172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.385172][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.385172][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.385172][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.385172][ T254] [ 4650.387381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.387381][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4650.387381][ T254] ipv6_find_idev+0x102/0x170 [ 4650.387381][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4650.387381][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4650.387381][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.387381][ T254] netlink_unicast+0x449/0x710 [ 4650.387381][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.387381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.387381][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.387381][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.387381][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.387381][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4650.387381][ T254] [ 4650.389100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4650.389100][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4650.389100][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4650.389100][ T254] ipv6_find_idev+0x102/0x170 [ 4650.389100][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4650.389100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4650.389100][ T254] netlink_rcv_skb+0x130/0x360 [ 4650.389100][ T254] netlink_unicast+0x449/0x710 [ 4650.389100][ T254] netlink_sendmsg+0x723/0xbe0 [ 4650.389100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4650.389100][ T254] ___sys_sendmsg+0xee/0x170 [ 4650.389100][ T254] __sys_sendmsg+0xcd/0x170 [ 4650.389100][ T254] do_syscall_64+0xc6/0x1e0 [ 4650.389100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4650.389100][ T254] [ 4660.639853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4660.640325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.640325][ T254] dst_init+0x84/0x4a0 [ 4660.640325][ T254] dst_alloc+0x97/0x150 [ 4660.640325][ T254] ip6_dst_alloc+0x23/0x90 [ 4660.640325][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4660.640325][ T254] ip6_pol_route+0x56f/0x840 [ 4660.640325][ T254] fib6_rule_lookup+0x334/0x630 [ 4660.640325][ T254] ip6_route_output_flags+0x259/0x480 [ 4660.640325][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4660.640325][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4660.640325][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.640325][ T254] netlink_unicast+0x449/0x710 [ 4660.640325][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.640325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.640325][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.640325][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.640325][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.640325][ T254] [ 4660.642522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.642522][ T254] netdev_get_by_index+0x5e/0x80 [ 4660.642522][ T254] fib6_nh_init+0x3d8/0x1580 [ 4660.642522][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4660.642522][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4660.642522][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4660.642522][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4660.642522][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4660.642522][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4660.642522][ T254] addrconf_dad_begin+0x310/0x670 [ 4660.642522][ T254] addrconf_dad_work+0x10b/0xab0 [ 4660.642522][ T254] process_one_work+0x84d/0x18a0 [ 4660.642522][ T254] worker_thread+0x587/0xd30 [ 4660.642522][ T254] kthread+0x28a/0x350 [ 4660.642522][ T254] ret_from_fork+0x31/0x70 [ 4660.642522][ T254] ret_from_fork_asm+0x1a/0x30 [ 4660.642522][ T254] [ 4660.644686][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.644686][ T254] netdev_get_by_index+0x5e/0x80 [ 4660.644686][ T254] fib6_nh_init+0x3d8/0x1580 [ 4660.644686][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4660.644686][ T254] ip6_route_add+0x1c/0x140 [ 4660.644686][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4660.644686][ T254] inet6_addr_add+0x4f8/0xa40 [ 4660.644686][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4660.644686][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4660.644686][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.644686][ T254] netlink_unicast+0x449/0x710 [ 4660.644686][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.644686][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.644686][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.644686][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.644686][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.644686][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4660.644686][ T254] [ 4660.646938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.646938][ T254] netdev_get_by_index+0x5e/0x80 [ 4660.646938][ T254] fib6_nh_init+0x3d8/0x1580 [ 4660.646938][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4660.646938][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4660.646938][ T254] ipv6_add_addr+0x411/0x2000 [ 4660.646938][ T254] inet6_addr_add+0x30e/0xa40 [ 4660.646938][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4660.646938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4660.646938][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.646938][ T254] netlink_unicast+0x449/0x710 [ 4660.646938][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.646938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.646938][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.646938][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.646938][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.646938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4660.646938][ T254] [ 4660.649175][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.649175][ T254] netdev_get_by_index+0x5e/0x80 [ 4660.649175][ T254] fib6_nh_init+0x3d8/0x1580 [ 4660.649175][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4660.649175][ T254] ip6_route_add+0x1c/0x140 [ 4660.649175][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4660.649175][ T254] addrconf_add_dev+0xe2/0x170 [ 4660.649175][ T254] inet6_addr_add+0x12f/0xa40 [ 4660.649175][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4660.649175][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4660.649175][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.649175][ T254] netlink_unicast+0x449/0x710 [ 4660.649175][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.649175][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.649175][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.649175][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.649175][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.649175][ T254] [ 4660.651373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.651373][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4660.651373][ T254] ipv6_find_idev+0x102/0x170 [ 4660.651373][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4660.651373][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4660.651373][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.651373][ T254] netlink_unicast+0x449/0x710 [ 4660.651373][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.651373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.651373][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.651373][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.651373][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.651373][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4660.651373][ T254] [ 4660.653096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4660.653096][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4660.653096][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4660.653096][ T254] ipv6_find_idev+0x102/0x170 [ 4660.653096][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4660.653096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4660.653096][ T254] netlink_rcv_skb+0x130/0x360 [ 4660.653096][ T254] netlink_unicast+0x449/0x710 [ 4660.653096][ T254] netlink_sendmsg+0x723/0xbe0 [ 4660.653096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4660.653096][ T254] ___sys_sendmsg+0xee/0x170 [ 4660.653096][ T254] __sys_sendmsg+0xcd/0x170 [ 4660.653096][ T254] do_syscall_64+0xc6/0x1e0 [ 4660.653096][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4660.653096][ T254] [ 4670.895850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4670.896312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.896312][ T254] dst_init+0x84/0x4a0 [ 4670.896312][ T254] dst_alloc+0x97/0x150 [ 4670.896312][ T254] ip6_dst_alloc+0x23/0x90 [ 4670.896312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4670.896312][ T254] ip6_pol_route+0x56f/0x840 [ 4670.896312][ T254] fib6_rule_lookup+0x334/0x630 [ 4670.896312][ T254] ip6_route_output_flags+0x259/0x480 [ 4670.896312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4670.896312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4670.896312][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.896312][ T254] netlink_unicast+0x449/0x710 [ 4670.896312][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.896312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.896312][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.896312][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.896312][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.896312][ T254] [ 4670.899035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.899035][ T254] netdev_get_by_index+0x5e/0x80 [ 4670.899035][ T254] fib6_nh_init+0x3d8/0x1580 [ 4670.899035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4670.899035][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4670.899035][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4670.899035][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4670.899035][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4670.899035][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4670.899035][ T254] addrconf_dad_begin+0x310/0x670 [ 4670.899035][ T254] addrconf_dad_work+0x10b/0xab0 [ 4670.899035][ T254] process_one_work+0x84d/0x18a0 [ 4670.899035][ T254] worker_thread+0x587/0xd30 [ 4670.899035][ T254] kthread+0x28a/0x350 [ 4670.899035][ T254] ret_from_fork+0x31/0x70 [ 4670.899035][ T254] ret_from_fork_asm+0x1a/0x30 [ 4670.899035][ T254] [ 4670.901181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.901181][ T254] netdev_get_by_index+0x5e/0x80 [ 4670.901181][ T254] fib6_nh_init+0x3d8/0x1580 [ 4670.901181][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4670.901181][ T254] ip6_route_add+0x1c/0x140 [ 4670.901181][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4670.901181][ T254] inet6_addr_add+0x4f8/0xa40 [ 4670.901181][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4670.901181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4670.901181][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.901181][ T254] netlink_unicast+0x449/0x710 [ 4670.901181][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.901181][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.901181][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.901181][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.901181][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.901181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4670.901181][ T254] [ 4670.903414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.903414][ T254] netdev_get_by_index+0x5e/0x80 [ 4670.903414][ T254] fib6_nh_init+0x3d8/0x1580 [ 4670.903414][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4670.903414][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4670.903414][ T254] ipv6_add_addr+0x411/0x2000 [ 4670.903414][ T254] inet6_addr_add+0x30e/0xa40 [ 4670.903414][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4670.903414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4670.903414][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.903414][ T254] netlink_unicast+0x449/0x710 [ 4670.903414][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.903414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.903414][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.903414][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.903414][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.903414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4670.903414][ T254] [ 4670.905655][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.905655][ T254] netdev_get_by_index+0x5e/0x80 [ 4670.905655][ T254] fib6_nh_init+0x3d8/0x1580 [ 4670.905655][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4670.905655][ T254] ip6_route_add+0x1c/0x140 [ 4670.905655][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4670.905655][ T254] addrconf_add_dev+0xe2/0x170 [ 4670.905655][ T254] inet6_addr_add+0x12f/0xa40 [ 4670.905655][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4670.905655][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4670.905655][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.905655][ T254] netlink_unicast+0x449/0x710 [ 4670.905655][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.905655][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.905655][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.905655][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.905655][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.905655][ T254] [ 4670.907848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.907848][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4670.907848][ T254] ipv6_find_idev+0x102/0x170 [ 4670.907848][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4670.907848][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4670.907848][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.907848][ T254] netlink_unicast+0x449/0x710 [ 4670.907848][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.907848][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.907848][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.907848][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.907848][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.907848][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4670.907848][ T254] [ 4670.909575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4670.909575][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4670.909575][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4670.909575][ T254] ipv6_find_idev+0x102/0x170 [ 4670.909575][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4670.909575][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4670.909575][ T254] netlink_rcv_skb+0x130/0x360 [ 4670.909575][ T254] netlink_unicast+0x449/0x710 [ 4670.909575][ T254] netlink_sendmsg+0x723/0xbe0 [ 4670.909575][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4670.909575][ T254] ___sys_sendmsg+0xee/0x170 [ 4670.909575][ T254] __sys_sendmsg+0xcd/0x170 [ 4670.909575][ T254] do_syscall_64+0xc6/0x1e0 [ 4670.909575][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4670.909575][ T254] [ 4681.151872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4681.152362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.152362][ T254] dst_init+0x84/0x4a0 [ 4681.152362][ T254] dst_alloc+0x97/0x150 [ 4681.152362][ T254] ip6_dst_alloc+0x23/0x90 [ 4681.152362][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4681.152362][ T254] ip6_pol_route+0x56f/0x840 [ 4681.152362][ T254] fib6_rule_lookup+0x334/0x630 [ 4681.152362][ T254] ip6_route_output_flags+0x259/0x480 [ 4681.152362][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4681.152362][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4681.152362][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.152362][ T254] netlink_unicast+0x449/0x710 [ 4681.152362][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.152362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.152362][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.152362][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.152362][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.152362][ T254] [ 4681.154574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.154574][ T254] netdev_get_by_index+0x5e/0x80 [ 4681.154574][ T254] fib6_nh_init+0x3d8/0x1580 [ 4681.154574][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4681.154574][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4681.154574][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4681.154574][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4681.154574][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4681.154574][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4681.154574][ T254] addrconf_dad_begin+0x310/0x670 [ 4681.154574][ T254] addrconf_dad_work+0x10b/0xab0 [ 4681.154574][ T254] process_one_work+0x84d/0x18a0 [ 4681.154574][ T254] worker_thread+0x587/0xd30 [ 4681.154574][ T254] kthread+0x28a/0x350 [ 4681.154574][ T254] ret_from_fork+0x31/0x70 [ 4681.154574][ T254] ret_from_fork_asm+0x1a/0x30 [ 4681.154574][ T254] [ 4681.156758][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.156758][ T254] netdev_get_by_index+0x5e/0x80 [ 4681.156758][ T254] fib6_nh_init+0x3d8/0x1580 [ 4681.156758][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4681.156758][ T254] ip6_route_add+0x1c/0x140 [ 4681.156758][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4681.156758][ T254] inet6_addr_add+0x4f8/0xa40 [ 4681.156758][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4681.156758][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4681.156758][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.156758][ T254] netlink_unicast+0x449/0x710 [ 4681.156758][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.156758][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.156758][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.156758][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.156758][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.156758][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4681.156758][ T254] [ 4681.159018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.159018][ T254] netdev_get_by_index+0x5e/0x80 [ 4681.159018][ T254] fib6_nh_init+0x3d8/0x1580 [ 4681.159018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4681.159018][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4681.159018][ T254] ipv6_add_addr+0x411/0x2000 [ 4681.159018][ T254] inet6_addr_add+0x30e/0xa40 [ 4681.159018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4681.159018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4681.159018][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.159018][ T254] netlink_unicast+0x449/0x710 [ 4681.159018][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.159018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.159018][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.159018][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.159018][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.159018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4681.159018][ T254] [ 4681.161276][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.161276][ T254] netdev_get_by_index+0x5e/0x80 [ 4681.161276][ T254] fib6_nh_init+0x3d8/0x1580 [ 4681.161276][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4681.161276][ T254] ip6_route_add+0x1c/0x140 [ 4681.161276][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4681.161276][ T254] addrconf_add_dev+0xe2/0x170 [ 4681.161276][ T254] inet6_addr_add+0x12f/0xa40 [ 4681.161276][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4681.161276][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4681.161276][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.161276][ T254] netlink_unicast+0x449/0x710 [ 4681.161276][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.161276][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.161276][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.161276][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.161276][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.161276][ T254] [ 4681.163495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.163495][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4681.163495][ T254] ipv6_find_idev+0x102/0x170 [ 4681.163495][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4681.163495][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4681.163495][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.163495][ T254] netlink_unicast+0x449/0x710 [ 4681.163495][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.163495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.163495][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.163495][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.163495][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.163495][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4681.163495][ T254] [ 4681.165243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4681.165243][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4681.165243][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4681.165243][ T254] ipv6_find_idev+0x102/0x170 [ 4681.165243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4681.165243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4681.165243][ T254] netlink_rcv_skb+0x130/0x360 [ 4681.165243][ T254] netlink_unicast+0x449/0x710 [ 4681.165243][ T254] netlink_sendmsg+0x723/0xbe0 [ 4681.165243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4681.165243][ T254] ___sys_sendmsg+0xee/0x170 [ 4681.165243][ T254] __sys_sendmsg+0xcd/0x170 [ 4681.165243][ T254] do_syscall_64+0xc6/0x1e0 [ 4681.165243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4681.165243][ T254] [ 4691.175846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4691.176312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.176312][ T254] dst_init+0x84/0x4a0 [ 4691.176312][ T254] dst_alloc+0x97/0x150 [ 4691.176312][ T254] ip6_dst_alloc+0x23/0x90 [ 4691.176312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4691.176312][ T254] ip6_pol_route+0x56f/0x840 [ 4691.176312][ T254] fib6_rule_lookup+0x334/0x630 [ 4691.176312][ T254] ip6_route_output_flags+0x259/0x480 [ 4691.176312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4691.176312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4691.176312][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.176312][ T254] netlink_unicast+0x449/0x710 [ 4691.176312][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.176312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.176312][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.176312][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.176312][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.176312][ T254] [ 4691.178514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.178514][ T254] netdev_get_by_index+0x5e/0x80 [ 4691.178514][ T254] fib6_nh_init+0x3d8/0x1580 [ 4691.178514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4691.178514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4691.178514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4691.178514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4691.178514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4691.178514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4691.178514][ T254] addrconf_dad_begin+0x310/0x670 [ 4691.178514][ T254] addrconf_dad_work+0x10b/0xab0 [ 4691.178514][ T254] process_one_work+0x84d/0x18a0 [ 4691.178514][ T254] worker_thread+0x587/0xd30 [ 4691.178514][ T254] kthread+0x28a/0x350 [ 4691.178514][ T254] ret_from_fork+0x31/0x70 [ 4691.178514][ T254] ret_from_fork_asm+0x1a/0x30 [ 4691.178514][ T254] [ 4691.180666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.180666][ T254] netdev_get_by_index+0x5e/0x80 [ 4691.180666][ T254] fib6_nh_init+0x3d8/0x1580 [ 4691.180666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4691.180666][ T254] ip6_route_add+0x1c/0x140 [ 4691.180666][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4691.180666][ T254] inet6_addr_add+0x4f8/0xa40 [ 4691.180666][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4691.180666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4691.180666][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.180666][ T254] netlink_unicast+0x449/0x710 [ 4691.180666][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.180666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.180666][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.180666][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.180666][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.180666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4691.180666][ T254] [ 4691.182906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.182906][ T254] netdev_get_by_index+0x5e/0x80 [ 4691.182906][ T254] fib6_nh_init+0x3d8/0x1580 [ 4691.182906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4691.182906][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4691.182906][ T254] ipv6_add_addr+0x411/0x2000 [ 4691.182906][ T254] inet6_addr_add+0x30e/0xa40 [ 4691.182906][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4691.182906][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4691.182906][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.182906][ T254] netlink_unicast+0x449/0x710 [ 4691.182906][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.182906][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.182906][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.182906][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.182906][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.182906][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4691.182906][ T254] [ 4691.185140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.185140][ T254] netdev_get_by_index+0x5e/0x80 [ 4691.185140][ T254] fib6_nh_init+0x3d8/0x1580 [ 4691.185140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4691.185140][ T254] ip6_route_add+0x1c/0x140 [ 4691.185140][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4691.185140][ T254] addrconf_add_dev+0xe2/0x170 [ 4691.185140][ T254] inet6_addr_add+0x12f/0xa40 [ 4691.185140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4691.185140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4691.185140][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.185140][ T254] netlink_unicast+0x449/0x710 [ 4691.185140][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.185140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.185140][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.185140][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.185140][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.185140][ T254] [ 4691.187347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.187347][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4691.187347][ T254] ipv6_find_idev+0x102/0x170 [ 4691.187347][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4691.187347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4691.187347][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.187347][ T254] netlink_unicast+0x449/0x710 [ 4691.187347][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.187347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.187347][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.187347][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.187347][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.187347][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4691.187347][ T254] [ 4691.189070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4691.189070][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4691.189070][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4691.189070][ T254] ipv6_find_idev+0x102/0x170 [ 4691.189070][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4691.189070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4691.189070][ T254] netlink_rcv_skb+0x130/0x360 [ 4691.189070][ T254] netlink_unicast+0x449/0x710 [ 4691.189070][ T254] netlink_sendmsg+0x723/0xbe0 [ 4691.189070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4691.189070][ T254] ___sys_sendmsg+0xee/0x170 [ 4691.189070][ T254] __sys_sendmsg+0xcd/0x170 [ 4691.189070][ T254] do_syscall_64+0xc6/0x1e0 [ 4691.189070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4691.189070][ T254] [ 4701.359845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4701.360314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.360314][ T254] dst_init+0x84/0x4a0 [ 4701.360314][ T254] dst_alloc+0x97/0x150 [ 4701.360314][ T254] ip6_dst_alloc+0x23/0x90 [ 4701.360314][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4701.360314][ T254] ip6_pol_route+0x56f/0x840 [ 4701.360314][ T254] fib6_rule_lookup+0x334/0x630 [ 4701.360314][ T254] ip6_route_output_flags+0x259/0x480 [ 4701.360314][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4701.360314][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4701.360314][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.360314][ T254] netlink_unicast+0x449/0x710 [ 4701.360314][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.360314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.360314][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.360314][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.360314][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.360314][ T254] [ 4701.362514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.362514][ T254] netdev_get_by_index+0x5e/0x80 [ 4701.362514][ T254] fib6_nh_init+0x3d8/0x1580 [ 4701.362514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4701.362514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4701.362514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4701.362514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4701.362514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4701.362514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4701.362514][ T254] addrconf_dad_begin+0x310/0x670 [ 4701.362514][ T254] addrconf_dad_work+0x10b/0xab0 [ 4701.362514][ T254] process_one_work+0x84d/0x18a0 [ 4701.362514][ T254] worker_thread+0x587/0xd30 [ 4701.362514][ T254] kthread+0x28a/0x350 [ 4701.362514][ T254] ret_from_fork+0x31/0x70 [ 4701.362514][ T254] ret_from_fork_asm+0x1a/0x30 [ 4701.362514][ T254] [ 4701.364670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.364670][ T254] netdev_get_by_index+0x5e/0x80 [ 4701.364670][ T254] fib6_nh_init+0x3d8/0x1580 [ 4701.364670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4701.364670][ T254] ip6_route_add+0x1c/0x140 [ 4701.364670][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4701.364670][ T254] inet6_addr_add+0x4f8/0xa40 [ 4701.364670][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4701.364670][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4701.364670][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.364670][ T254] netlink_unicast+0x449/0x710 [ 4701.364670][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.364670][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.364670][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.364670][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.364670][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.364670][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4701.364670][ T254] [ 4701.366920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.366920][ T254] netdev_get_by_index+0x5e/0x80 [ 4701.366920][ T254] fib6_nh_init+0x3d8/0x1580 [ 4701.366920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4701.366920][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4701.366920][ T254] ipv6_add_addr+0x411/0x2000 [ 4701.366920][ T254] inet6_addr_add+0x30e/0xa40 [ 4701.366920][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4701.366920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4701.366920][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.366920][ T254] netlink_unicast+0x449/0x710 [ 4701.366920][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.366920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.366920][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.366920][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.366920][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.366920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4701.366920][ T254] [ 4701.369159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.369159][ T254] netdev_get_by_index+0x5e/0x80 [ 4701.369159][ T254] fib6_nh_init+0x3d8/0x1580 [ 4701.369159][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4701.369159][ T254] ip6_route_add+0x1c/0x140 [ 4701.369159][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4701.369159][ T254] addrconf_add_dev+0xe2/0x170 [ 4701.369159][ T254] inet6_addr_add+0x12f/0xa40 [ 4701.369159][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4701.369159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4701.369159][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.369159][ T254] netlink_unicast+0x449/0x710 [ 4701.369159][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.369159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.369159][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.369159][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.369159][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.369159][ T254] [ 4701.371346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.371346][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4701.371346][ T254] ipv6_find_idev+0x102/0x170 [ 4701.371346][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4701.371346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4701.371346][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.371346][ T254] netlink_unicast+0x449/0x710 [ 4701.371346][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.371346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.371346][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.371346][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.371346][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.371346][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4701.371346][ T254] [ 4701.373164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4701.373164][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4701.373164][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4701.373164][ T254] ipv6_find_idev+0x102/0x170 [ 4701.373164][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4701.373164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4701.373164][ T254] netlink_rcv_skb+0x130/0x360 [ 4701.373164][ T254] netlink_unicast+0x449/0x710 [ 4701.373164][ T254] netlink_sendmsg+0x723/0xbe0 [ 4701.373164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4701.373164][ T254] ___sys_sendmsg+0xee/0x170 [ 4701.373164][ T254] __sys_sendmsg+0xcd/0x170 [ 4701.373164][ T254] do_syscall_64+0xc6/0x1e0 [ 4701.373164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4701.373164][ T254] [ 4711.455916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4711.456332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.456332][ T254] dst_init+0x84/0x4a0 [ 4711.456332][ T254] dst_alloc+0x97/0x150 [ 4711.456332][ T254] ip6_dst_alloc+0x23/0x90 [ 4711.456332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4711.456332][ T254] ip6_pol_route+0x56f/0x840 [ 4711.456332][ T254] fib6_rule_lookup+0x334/0x630 [ 4711.456332][ T254] ip6_route_output_flags+0x259/0x480 [ 4711.456332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4711.456332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4711.456332][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.456332][ T254] netlink_unicast+0x449/0x710 [ 4711.456332][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.456332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.456332][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.456332][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.456332][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.456332][ T254] [ 4711.458510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.458510][ T254] netdev_get_by_index+0x5e/0x80 [ 4711.458510][ T254] fib6_nh_init+0x3d8/0x1580 [ 4711.458510][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4711.458510][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4711.458510][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4711.458510][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4711.458510][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4711.458510][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4711.458510][ T254] addrconf_dad_begin+0x310/0x670 [ 4711.458510][ T254] addrconf_dad_work+0x10b/0xab0 [ 4711.458510][ T254] process_one_work+0x84d/0x18a0 [ 4711.458510][ T254] worker_thread+0x587/0xd30 [ 4711.458510][ T254] kthread+0x28a/0x350 [ 4711.458510][ T254] ret_from_fork+0x31/0x70 [ 4711.458510][ T254] ret_from_fork_asm+0x1a/0x30 [ 4711.458510][ T254] [ 4711.460666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.460666][ T254] netdev_get_by_index+0x5e/0x80 [ 4711.460666][ T254] fib6_nh_init+0x3d8/0x1580 [ 4711.460666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4711.460666][ T254] ip6_route_add+0x1c/0x140 [ 4711.460666][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4711.460666][ T254] inet6_addr_add+0x4f8/0xa40 [ 4711.460666][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4711.460666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4711.460666][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.460666][ T254] netlink_unicast+0x449/0x710 [ 4711.460666][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.460666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.460666][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.460666][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.460666][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.460666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4711.460666][ T254] [ 4711.462899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.462899][ T254] netdev_get_by_index+0x5e/0x80 [ 4711.462899][ T254] fib6_nh_init+0x3d8/0x1580 [ 4711.462899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4711.462899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4711.462899][ T254] ipv6_add_addr+0x411/0x2000 [ 4711.462899][ T254] inet6_addr_add+0x30e/0xa40 [ 4711.462899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4711.462899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4711.462899][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.462899][ T254] netlink_unicast+0x449/0x710 [ 4711.462899][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.462899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.462899][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.462899][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.462899][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.462899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4711.462899][ T254] [ 4711.465149][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.465149][ T254] netdev_get_by_index+0x5e/0x80 [ 4711.465149][ T254] fib6_nh_init+0x3d8/0x1580 [ 4711.465149][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4711.465149][ T254] ip6_route_add+0x1c/0x140 [ 4711.465149][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4711.465149][ T254] addrconf_add_dev+0xe2/0x170 [ 4711.465149][ T254] inet6_addr_add+0x12f/0xa40 [ 4711.465149][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4711.465149][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4711.465149][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.465149][ T254] netlink_unicast+0x449/0x710 [ 4711.465149][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.465149][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.465149][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.465149][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.465149][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.465149][ T254] [ 4711.467344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.467344][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4711.467344][ T254] ipv6_find_idev+0x102/0x170 [ 4711.467344][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4711.467344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4711.467344][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.467344][ T254] netlink_unicast+0x449/0x710 [ 4711.467344][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.467344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.467344][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.467344][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.467344][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.467344][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4711.467344][ T254] [ 4711.469057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4711.469057][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4711.469057][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4711.469057][ T254] ipv6_find_idev+0x102/0x170 [ 4711.469057][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4711.469057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4711.469057][ T254] netlink_rcv_skb+0x130/0x360 [ 4711.469057][ T254] netlink_unicast+0x449/0x710 [ 4711.469057][ T254] netlink_sendmsg+0x723/0xbe0 [ 4711.469057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4711.469057][ T254] ___sys_sendmsg+0xee/0x170 [ 4711.469057][ T254] __sys_sendmsg+0xcd/0x170 [ 4711.469057][ T254] do_syscall_64+0xc6/0x1e0 [ 4711.469057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4711.469057][ T254] [ 4721.663850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4721.664314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.664314][ T254] dst_init+0x84/0x4a0 [ 4721.664314][ T254] dst_alloc+0x97/0x150 [ 4721.664314][ T254] ip6_dst_alloc+0x23/0x90 [ 4721.664314][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4721.664314][ T254] ip6_pol_route+0x56f/0x840 [ 4721.664314][ T254] fib6_rule_lookup+0x334/0x630 [ 4721.664314][ T254] ip6_route_output_flags+0x259/0x480 [ 4721.664314][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4721.664314][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4721.664314][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.664314][ T254] netlink_unicast+0x449/0x710 [ 4721.664314][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.664314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.664314][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.664314][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.664314][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.664314][ T254] [ 4721.666630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.666630][ T254] netdev_get_by_index+0x5e/0x80 [ 4721.666630][ T254] fib6_nh_init+0x3d8/0x1580 [ 4721.666630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4721.666630][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4721.666630][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4721.666630][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4721.666630][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4721.666630][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4721.666630][ T254] addrconf_dad_begin+0x310/0x670 [ 4721.666630][ T254] addrconf_dad_work+0x10b/0xab0 [ 4721.666630][ T254] process_one_work+0x84d/0x18a0 [ 4721.666630][ T254] worker_thread+0x587/0xd30 [ 4721.666630][ T254] kthread+0x28a/0x350 [ 4721.666630][ T254] ret_from_fork+0x31/0x70 [ 4721.666630][ T254] ret_from_fork_asm+0x1a/0x30 [ 4721.666630][ T254] [ 4721.668765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.668765][ T254] netdev_get_by_index+0x5e/0x80 [ 4721.668765][ T254] fib6_nh_init+0x3d8/0x1580 [ 4721.668765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4721.668765][ T254] ip6_route_add+0x1c/0x140 [ 4721.668765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4721.668765][ T254] inet6_addr_add+0x4f8/0xa40 [ 4721.668765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4721.668765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4721.668765][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.668765][ T254] netlink_unicast+0x449/0x710 [ 4721.668765][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.668765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.668765][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.668765][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.668765][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.668765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4721.668765][ T254] [ 4721.670998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.670998][ T254] netdev_get_by_index+0x5e/0x80 [ 4721.670998][ T254] fib6_nh_init+0x3d8/0x1580 [ 4721.670998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4721.670998][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4721.670998][ T254] ipv6_add_addr+0x411/0x2000 [ 4721.670998][ T254] inet6_addr_add+0x30e/0xa40 [ 4721.670998][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4721.670998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4721.670998][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.670998][ T254] netlink_unicast+0x449/0x710 [ 4721.670998][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.670998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.670998][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.670998][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.670998][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.670998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4721.670998][ T254] [ 4721.673231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.673231][ T254] netdev_get_by_index+0x5e/0x80 [ 4721.673231][ T254] fib6_nh_init+0x3d8/0x1580 [ 4721.673231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4721.673231][ T254] ip6_route_add+0x1c/0x140 [ 4721.673231][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4721.673231][ T254] addrconf_add_dev+0xe2/0x170 [ 4721.673231][ T254] inet6_addr_add+0x12f/0xa40 [ 4721.673231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4721.673231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4721.673231][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.673231][ T254] netlink_unicast+0x449/0x710 [ 4721.673231][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.673231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.673231][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.673231][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.673231][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.673231][ T254] [ 4721.675434][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.675434][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4721.675434][ T254] ipv6_find_idev+0x102/0x170 [ 4721.675434][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4721.675434][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4721.675434][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.675434][ T254] netlink_unicast+0x449/0x710 [ 4721.675434][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.675434][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.675434][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.675434][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.675434][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.675434][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4721.675434][ T254] [ 4721.677147][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4721.677147][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4721.677147][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4721.677147][ T254] ipv6_find_idev+0x102/0x170 [ 4721.677147][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4721.677147][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4721.677147][ T254] netlink_rcv_skb+0x130/0x360 [ 4721.677147][ T254] netlink_unicast+0x449/0x710 [ 4721.677147][ T254] netlink_sendmsg+0x723/0xbe0 [ 4721.677147][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4721.677147][ T254] ___sys_sendmsg+0xee/0x170 [ 4721.677147][ T254] __sys_sendmsg+0xcd/0x170 [ 4721.677147][ T254] do_syscall_64+0xc6/0x1e0 [ 4721.677147][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4721.677147][ T254] [ 4731.871783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4731.872248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.872248][ T254] dst_init+0x84/0x4a0 [ 4731.872248][ T254] dst_alloc+0x97/0x150 [ 4731.872248][ T254] ip6_dst_alloc+0x23/0x90 [ 4731.872248][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4731.872248][ T254] ip6_pol_route+0x56f/0x840 [ 4731.872248][ T254] fib6_rule_lookup+0x334/0x630 [ 4731.872248][ T254] ip6_route_output_flags+0x259/0x480 [ 4731.872248][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4731.872248][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4731.872248][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.872248][ T254] netlink_unicast+0x449/0x710 [ 4731.872248][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.872248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.872248][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.872248][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.872248][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.872248][ T254] [ 4731.874431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.874431][ T254] netdev_get_by_index+0x5e/0x80 [ 4731.874431][ T254] fib6_nh_init+0x3d8/0x1580 [ 4731.874431][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4731.874431][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4731.874431][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4731.874431][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4731.874431][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4731.874431][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4731.874431][ T254] addrconf_dad_begin+0x310/0x670 [ 4731.874431][ T254] addrconf_dad_work+0x10b/0xab0 [ 4731.874431][ T254] process_one_work+0x84d/0x18a0 [ 4731.874431][ T254] worker_thread+0x587/0xd30 [ 4731.874431][ T254] kthread+0x28a/0x350 [ 4731.874431][ T254] ret_from_fork+0x31/0x70 [ 4731.874431][ T254] ret_from_fork_asm+0x1a/0x30 [ 4731.874431][ T254] [ 4731.876586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.876586][ T254] netdev_get_by_index+0x5e/0x80 [ 4731.876586][ T254] fib6_nh_init+0x3d8/0x1580 [ 4731.876586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4731.876586][ T254] ip6_route_add+0x1c/0x140 [ 4731.876586][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4731.876586][ T254] inet6_addr_add+0x4f8/0xa40 [ 4731.876586][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4731.876586][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4731.876586][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.876586][ T254] netlink_unicast+0x449/0x710 [ 4731.876586][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.876586][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.876586][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.876586][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.876586][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.876586][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4731.876586][ T254] [ 4731.878819][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.878819][ T254] netdev_get_by_index+0x5e/0x80 [ 4731.878819][ T254] fib6_nh_init+0x3d8/0x1580 [ 4731.878819][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4731.878819][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4731.878819][ T254] ipv6_add_addr+0x411/0x2000 [ 4731.878819][ T254] inet6_addr_add+0x30e/0xa40 [ 4731.878819][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4731.878819][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4731.878819][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.878819][ T254] netlink_unicast+0x449/0x710 [ 4731.878819][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.878819][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.878819][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.878819][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.878819][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.878819][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4731.878819][ T254] [ 4731.881055][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.881055][ T254] netdev_get_by_index+0x5e/0x80 [ 4731.881055][ T254] fib6_nh_init+0x3d8/0x1580 [ 4731.881055][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4731.881055][ T254] ip6_route_add+0x1c/0x140 [ 4731.881055][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4731.881055][ T254] addrconf_add_dev+0xe2/0x170 [ 4731.881055][ T254] inet6_addr_add+0x12f/0xa40 [ 4731.881055][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4731.881055][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4731.881055][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.881055][ T254] netlink_unicast+0x449/0x710 [ 4731.881055][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.881055][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.881055][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.881055][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.881055][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.881055][ T254] [ 4731.883245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.883245][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4731.883245][ T254] ipv6_find_idev+0x102/0x170 [ 4731.883245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4731.883245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4731.883245][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.883245][ T254] netlink_unicast+0x449/0x710 [ 4731.883245][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.883245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.883245][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.883245][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.883245][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.883245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4731.883245][ T254] [ 4731.884961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4731.884961][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4731.884961][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4731.884961][ T254] ipv6_find_idev+0x102/0x170 [ 4731.884961][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4731.884961][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4731.884961][ T254] netlink_rcv_skb+0x130/0x360 [ 4731.884961][ T254] netlink_unicast+0x449/0x710 [ 4731.884961][ T254] netlink_sendmsg+0x723/0xbe0 [ 4731.884961][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4731.884961][ T254] ___sys_sendmsg+0xee/0x170 [ 4731.884961][ T254] __sys_sendmsg+0xcd/0x170 [ 4731.884961][ T254] do_syscall_64+0xc6/0x1e0 [ 4731.884961][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4731.884961][ T254] [ 4741.919851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4741.920278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.920278][ T254] dst_init+0x84/0x4a0 [ 4741.920278][ T254] dst_alloc+0x97/0x150 [ 4741.920278][ T254] ip6_dst_alloc+0x23/0x90 [ 4741.920278][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4741.920278][ T254] ip6_pol_route+0x56f/0x840 [ 4741.920278][ T254] fib6_rule_lookup+0x334/0x630 [ 4741.920278][ T254] ip6_route_output_flags+0x259/0x480 [ 4741.920278][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4741.920278][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4741.920278][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.920278][ T254] netlink_unicast+0x449/0x710 [ 4741.920278][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.920278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.920278][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.920278][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.920278][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.920278][ T254] [ 4741.922461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.922461][ T254] netdev_get_by_index+0x5e/0x80 [ 4741.922461][ T254] fib6_nh_init+0x3d8/0x1580 [ 4741.922461][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4741.922461][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4741.922461][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4741.922461][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4741.922461][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4741.922461][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4741.922461][ T254] addrconf_dad_begin+0x310/0x670 [ 4741.922461][ T254] addrconf_dad_work+0x10b/0xab0 [ 4741.922461][ T254] process_one_work+0x84d/0x18a0 [ 4741.922461][ T254] worker_thread+0x587/0xd30 [ 4741.922461][ T254] kthread+0x28a/0x350 [ 4741.922461][ T254] ret_from_fork+0x31/0x70 [ 4741.922461][ T254] ret_from_fork_asm+0x1a/0x30 [ 4741.922461][ T254] [ 4741.924600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.924600][ T254] netdev_get_by_index+0x5e/0x80 [ 4741.924600][ T254] fib6_nh_init+0x3d8/0x1580 [ 4741.924600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4741.924600][ T254] ip6_route_add+0x1c/0x140 [ 4741.924600][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4741.924600][ T254] inet6_addr_add+0x4f8/0xa40 [ 4741.924600][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4741.924600][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4741.924600][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.924600][ T254] netlink_unicast+0x449/0x710 [ 4741.924600][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.924600][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.924600][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.924600][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.924600][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.924600][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4741.924600][ T254] [ 4741.926866][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.926866][ T254] netdev_get_by_index+0x5e/0x80 [ 4741.926866][ T254] fib6_nh_init+0x3d8/0x1580 [ 4741.926866][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4741.926866][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4741.926866][ T254] ipv6_add_addr+0x411/0x2000 [ 4741.926866][ T254] inet6_addr_add+0x30e/0xa40 [ 4741.926866][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4741.926866][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4741.926866][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.926866][ T254] netlink_unicast+0x449/0x710 [ 4741.926866][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.926866][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.926866][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.926866][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.926866][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.926866][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4741.926866][ T254] [ 4741.929115][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.929115][ T254] netdev_get_by_index+0x5e/0x80 [ 4741.929115][ T254] fib6_nh_init+0x3d8/0x1580 [ 4741.929115][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4741.929115][ T254] ip6_route_add+0x1c/0x140 [ 4741.929115][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4741.929115][ T254] addrconf_add_dev+0xe2/0x170 [ 4741.929115][ T254] inet6_addr_add+0x12f/0xa40 [ 4741.929115][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4741.929115][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4741.929115][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.929115][ T254] netlink_unicast+0x449/0x710 [ 4741.929115][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.929115][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.929115][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.929115][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.929115][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.929115][ T254] [ 4741.931310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.931310][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4741.931310][ T254] ipv6_find_idev+0x102/0x170 [ 4741.931310][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4741.931310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4741.931310][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.931310][ T254] netlink_unicast+0x449/0x710 [ 4741.931310][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.931310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.931310][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.931310][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.931310][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.931310][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4741.931310][ T254] [ 4741.933037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4741.933037][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4741.933037][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4741.933037][ T254] ipv6_find_idev+0x102/0x170 [ 4741.933037][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4741.933037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4741.933037][ T254] netlink_rcv_skb+0x130/0x360 [ 4741.933037][ T254] netlink_unicast+0x449/0x710 [ 4741.933037][ T254] netlink_sendmsg+0x723/0xbe0 [ 4741.933037][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4741.933037][ T254] ___sys_sendmsg+0xee/0x170 [ 4741.933037][ T254] __sys_sendmsg+0xcd/0x170 [ 4741.933037][ T254] do_syscall_64+0xc6/0x1e0 [ 4741.933037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4741.933037][ T254] [ 4751.943853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4751.944319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.944319][ T254] dst_init+0x84/0x4a0 [ 4751.944319][ T254] dst_alloc+0x97/0x150 [ 4751.944319][ T254] ip6_dst_alloc+0x23/0x90 [ 4751.944319][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4751.944319][ T254] ip6_pol_route+0x56f/0x840 [ 4751.944319][ T254] fib6_rule_lookup+0x334/0x630 [ 4751.944319][ T254] ip6_route_output_flags+0x259/0x480 [ 4751.944319][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4751.944319][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4751.944319][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.944319][ T254] netlink_unicast+0x449/0x710 [ 4751.944319][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.944319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.944319][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.944319][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.944319][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.944319][ T254] [ 4751.946513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.946513][ T254] netdev_get_by_index+0x5e/0x80 [ 4751.946513][ T254] fib6_nh_init+0x3d8/0x1580 [ 4751.946513][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4751.946513][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4751.946513][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4751.946513][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4751.946513][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4751.946513][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4751.946513][ T254] addrconf_dad_begin+0x310/0x670 [ 4751.946513][ T254] addrconf_dad_work+0x10b/0xab0 [ 4751.946513][ T254] process_one_work+0x84d/0x18a0 [ 4751.946513][ T254] worker_thread+0x587/0xd30 [ 4751.946513][ T254] kthread+0x28a/0x350 [ 4751.946513][ T254] ret_from_fork+0x31/0x70 [ 4751.946513][ T254] ret_from_fork_asm+0x1a/0x30 [ 4751.946513][ T254] [ 4751.948652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.948652][ T254] netdev_get_by_index+0x5e/0x80 [ 4751.948652][ T254] fib6_nh_init+0x3d8/0x1580 [ 4751.948652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4751.948652][ T254] ip6_route_add+0x1c/0x140 [ 4751.948652][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4751.948652][ T254] inet6_addr_add+0x4f8/0xa40 [ 4751.948652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4751.948652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4751.948652][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.948652][ T254] netlink_unicast+0x449/0x710 [ 4751.948652][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.948652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.948652][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.948652][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.948652][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.948652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4751.948652][ T254] [ 4751.950882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.950882][ T254] netdev_get_by_index+0x5e/0x80 [ 4751.950882][ T254] fib6_nh_init+0x3d8/0x1580 [ 4751.950882][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4751.950882][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4751.950882][ T254] ipv6_add_addr+0x411/0x2000 [ 4751.950882][ T254] inet6_addr_add+0x30e/0xa40 [ 4751.950882][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4751.950882][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4751.950882][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.950882][ T254] netlink_unicast+0x449/0x710 [ 4751.950882][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.950882][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.950882][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.950882][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.950882][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.950882][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4751.950882][ T254] [ 4751.953118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.953118][ T254] netdev_get_by_index+0x5e/0x80 [ 4751.953118][ T254] fib6_nh_init+0x3d8/0x1580 [ 4751.953118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4751.953118][ T254] ip6_route_add+0x1c/0x140 [ 4751.953118][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4751.953118][ T254] addrconf_add_dev+0xe2/0x170 [ 4751.953118][ T254] inet6_addr_add+0x12f/0xa40 [ 4751.953118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4751.953118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4751.953118][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.953118][ T254] netlink_unicast+0x449/0x710 [ 4751.953118][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.953118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.953118][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.953118][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.953118][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.953118][ T254] [ 4751.955361][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.955361][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4751.955361][ T254] ipv6_find_idev+0x102/0x170 [ 4751.955361][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4751.955361][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4751.955361][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.955361][ T254] netlink_unicast+0x449/0x710 [ 4751.955361][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.955361][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.955361][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.955361][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.955361][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.955361][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4751.955361][ T254] [ 4751.957085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4751.957085][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4751.957085][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4751.957085][ T254] ipv6_find_idev+0x102/0x170 [ 4751.957085][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4751.957085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4751.957085][ T254] netlink_rcv_skb+0x130/0x360 [ 4751.957085][ T254] netlink_unicast+0x449/0x710 [ 4751.957085][ T254] netlink_sendmsg+0x723/0xbe0 [ 4751.957085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4751.957085][ T254] ___sys_sendmsg+0xee/0x170 [ 4751.957085][ T254] __sys_sendmsg+0xcd/0x170 [ 4751.957085][ T254] do_syscall_64+0xc6/0x1e0 [ 4751.957085][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4751.957085][ T254] [ 4762.167864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4762.168360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.168360][ T254] dst_init+0x84/0x4a0 [ 4762.168360][ T254] dst_alloc+0x97/0x150 [ 4762.168360][ T254] ip6_dst_alloc+0x23/0x90 [ 4762.168360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4762.168360][ T254] ip6_pol_route+0x56f/0x840 [ 4762.168360][ T254] fib6_rule_lookup+0x334/0x630 [ 4762.168360][ T254] ip6_route_output_flags+0x259/0x480 [ 4762.168360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4762.168360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4762.168360][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.168360][ T254] netlink_unicast+0x449/0x710 [ 4762.168360][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.168360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.168360][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.168360][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.168360][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.168360][ T254] [ 4762.170593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.170593][ T254] netdev_get_by_index+0x5e/0x80 [ 4762.170593][ T254] fib6_nh_init+0x3d8/0x1580 [ 4762.170593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4762.170593][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4762.170593][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4762.170593][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4762.170593][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4762.170593][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4762.170593][ T254] addrconf_dad_begin+0x310/0x670 [ 4762.170593][ T254] addrconf_dad_work+0x10b/0xab0 [ 4762.170593][ T254] process_one_work+0x84d/0x18a0 [ 4762.170593][ T254] worker_thread+0x587/0xd30 [ 4762.170593][ T254] kthread+0x28a/0x350 [ 4762.170593][ T254] ret_from_fork+0x31/0x70 [ 4762.170593][ T254] ret_from_fork_asm+0x1a/0x30 [ 4762.170593][ T254] [ 4762.172760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.172760][ T254] netdev_get_by_index+0x5e/0x80 [ 4762.172760][ T254] fib6_nh_init+0x3d8/0x1580 [ 4762.172760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4762.172760][ T254] ip6_route_add+0x1c/0x140 [ 4762.172760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4762.172760][ T254] inet6_addr_add+0x4f8/0xa40 [ 4762.172760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4762.172760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4762.172760][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.172760][ T254] netlink_unicast+0x449/0x710 [ 4762.172760][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.172760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.172760][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.172760][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.172760][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.172760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4762.172760][ T254] [ 4762.175046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.175046][ T254] netdev_get_by_index+0x5e/0x80 [ 4762.175046][ T254] fib6_nh_init+0x3d8/0x1580 [ 4762.175046][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4762.175046][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4762.175046][ T254] ipv6_add_addr+0x411/0x2000 [ 4762.175046][ T254] inet6_addr_add+0x30e/0xa40 [ 4762.175046][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4762.175046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4762.175046][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.175046][ T254] netlink_unicast+0x449/0x710 [ 4762.175046][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.175046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.175046][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.175046][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.175046][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.175046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4762.175046][ T254] [ 4762.177301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.177301][ T254] netdev_get_by_index+0x5e/0x80 [ 4762.177301][ T254] fib6_nh_init+0x3d8/0x1580 [ 4762.177301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4762.177301][ T254] ip6_route_add+0x1c/0x140 [ 4762.177301][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4762.177301][ T254] addrconf_add_dev+0xe2/0x170 [ 4762.177301][ T254] inet6_addr_add+0x12f/0xa40 [ 4762.177301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4762.177301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4762.177301][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.177301][ T254] netlink_unicast+0x449/0x710 [ 4762.177301][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.177301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.177301][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.177301][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.177301][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.177301][ T254] [ 4762.179521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.179521][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4762.179521][ T254] ipv6_find_idev+0x102/0x170 [ 4762.179521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4762.179521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4762.179521][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.179521][ T254] netlink_unicast+0x449/0x710 [ 4762.179521][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.179521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.179521][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.179521][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.179521][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.179521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4762.179521][ T254] [ 4762.181256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4762.181256][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4762.181256][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4762.181256][ T254] ipv6_find_idev+0x102/0x170 [ 4762.181256][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4762.181256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4762.181256][ T254] netlink_rcv_skb+0x130/0x360 [ 4762.181256][ T254] netlink_unicast+0x449/0x710 [ 4762.181256][ T254] netlink_sendmsg+0x723/0xbe0 [ 4762.181256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4762.181256][ T254] ___sys_sendmsg+0xee/0x170 [ 4762.181256][ T254] __sys_sendmsg+0xcd/0x170 [ 4762.181256][ T254] do_syscall_64+0xc6/0x1e0 [ 4762.181256][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4762.181256][ T254] [ 4772.423857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4772.424341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.424341][ T254] dst_init+0x84/0x4a0 [ 4772.424341][ T254] dst_alloc+0x97/0x150 [ 4772.424341][ T254] ip6_dst_alloc+0x23/0x90 [ 4772.424341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4772.424341][ T254] ip6_pol_route+0x56f/0x840 [ 4772.424341][ T254] fib6_rule_lookup+0x334/0x630 [ 4772.424341][ T254] ip6_route_output_flags+0x259/0x480 [ 4772.424341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4772.424341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4772.424341][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.424341][ T254] netlink_unicast+0x449/0x710 [ 4772.424341][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.424341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.424341][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.424341][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.424341][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.424341][ T254] [ 4772.426662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.426662][ T254] netdev_get_by_index+0x5e/0x80 [ 4772.426662][ T254] fib6_nh_init+0x3d8/0x1580 [ 4772.426662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4772.426662][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4772.426662][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4772.426662][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4772.426662][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4772.426662][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4772.426662][ T254] addrconf_dad_begin+0x310/0x670 [ 4772.426662][ T254] addrconf_dad_work+0x10b/0xab0 [ 4772.426662][ T254] process_one_work+0x84d/0x18a0 [ 4772.426662][ T254] worker_thread+0x587/0xd30 [ 4772.426662][ T254] kthread+0x28a/0x350 [ 4772.426662][ T254] ret_from_fork+0x31/0x70 [ 4772.426662][ T254] ret_from_fork_asm+0x1a/0x30 [ 4772.426662][ T254] [ 4772.428829][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.428829][ T254] netdev_get_by_index+0x5e/0x80 [ 4772.428829][ T254] fib6_nh_init+0x3d8/0x1580 [ 4772.428829][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4772.428829][ T254] ip6_route_add+0x1c/0x140 [ 4772.428829][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4772.428829][ T254] inet6_addr_add+0x4f8/0xa40 [ 4772.428829][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4772.428829][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4772.428829][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.428829][ T254] netlink_unicast+0x449/0x710 [ 4772.428829][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.428829][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.428829][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.428829][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.428829][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.428829][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4772.428829][ T254] [ 4772.431097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.431097][ T254] netdev_get_by_index+0x5e/0x80 [ 4772.431097][ T254] fib6_nh_init+0x3d8/0x1580 [ 4772.431097][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4772.431097][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4772.431097][ T254] ipv6_add_addr+0x411/0x2000 [ 4772.431097][ T254] inet6_addr_add+0x30e/0xa40 [ 4772.431097][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4772.431097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4772.431097][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.431097][ T254] netlink_unicast+0x449/0x710 [ 4772.431097][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.431097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.431097][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.431097][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.431097][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.431097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4772.431097][ T254] [ 4772.433360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.433360][ T254] netdev_get_by_index+0x5e/0x80 [ 4772.433360][ T254] fib6_nh_init+0x3d8/0x1580 [ 4772.433360][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4772.433360][ T254] ip6_route_add+0x1c/0x140 [ 4772.433360][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4772.433360][ T254] addrconf_add_dev+0xe2/0x170 [ 4772.433360][ T254] inet6_addr_add+0x12f/0xa40 [ 4772.433360][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4772.433360][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4772.433360][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.433360][ T254] netlink_unicast+0x449/0x710 [ 4772.433360][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.433360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.433360][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.433360][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.433360][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.433360][ T254] [ 4772.435589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.435589][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4772.435589][ T254] ipv6_find_idev+0x102/0x170 [ 4772.435589][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4772.435589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4772.435589][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.435589][ T254] netlink_unicast+0x449/0x710 [ 4772.435589][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.435589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.435589][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.435589][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.435589][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.435589][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4772.435589][ T254] [ 4772.437355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4772.437355][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4772.437355][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4772.437355][ T254] ipv6_find_idev+0x102/0x170 [ 4772.437355][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4772.437355][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4772.437355][ T254] netlink_rcv_skb+0x130/0x360 [ 4772.437355][ T254] netlink_unicast+0x449/0x710 [ 4772.437355][ T254] netlink_sendmsg+0x723/0xbe0 [ 4772.437355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4772.437355][ T254] ___sys_sendmsg+0xee/0x170 [ 4772.437355][ T254] __sys_sendmsg+0xcd/0x170 [ 4772.437355][ T254] do_syscall_64+0xc6/0x1e0 [ 4772.437355][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4772.437355][ T254] [ 4782.679844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4782.680332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.680332][ T254] dst_init+0x84/0x4a0 [ 4782.680332][ T254] dst_alloc+0x97/0x150 [ 4782.680332][ T254] ip6_dst_alloc+0x23/0x90 [ 4782.680332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4782.680332][ T254] ip6_pol_route+0x56f/0x840 [ 4782.680332][ T254] fib6_rule_lookup+0x334/0x630 [ 4782.680332][ T254] ip6_route_output_flags+0x259/0x480 [ 4782.680332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4782.680332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4782.680332][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.680332][ T254] netlink_unicast+0x449/0x710 [ 4782.680332][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.680332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.680332][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.680332][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.680332][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.680332][ T254] [ 4782.682542][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.682542][ T254] netdev_get_by_index+0x5e/0x80 [ 4782.682542][ T254] fib6_nh_init+0x3d8/0x1580 [ 4782.682542][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4782.682542][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4782.682542][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4782.682542][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4782.682542][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4782.682542][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4782.682542][ T254] addrconf_dad_begin+0x310/0x670 [ 4782.682542][ T254] addrconf_dad_work+0x10b/0xab0 [ 4782.682542][ T254] process_one_work+0x84d/0x18a0 [ 4782.682542][ T254] worker_thread+0x587/0xd30 [ 4782.682542][ T254] kthread+0x28a/0x350 [ 4782.682542][ T254] ret_from_fork+0x31/0x70 [ 4782.682542][ T254] ret_from_fork_asm+0x1a/0x30 [ 4782.682542][ T254] [ 4782.684707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.684707][ T254] netdev_get_by_index+0x5e/0x80 [ 4782.684707][ T254] fib6_nh_init+0x3d8/0x1580 [ 4782.684707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4782.684707][ T254] ip6_route_add+0x1c/0x140 [ 4782.684707][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4782.684707][ T254] inet6_addr_add+0x4f8/0xa40 [ 4782.684707][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4782.684707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4782.684707][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.684707][ T254] netlink_unicast+0x449/0x710 [ 4782.684707][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.684707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.684707][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.684707][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.684707][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.684707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4782.684707][ T254] [ 4782.686984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.686984][ T254] netdev_get_by_index+0x5e/0x80 [ 4782.686984][ T254] fib6_nh_init+0x3d8/0x1580 [ 4782.686984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4782.686984][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4782.686984][ T254] ipv6_add_addr+0x411/0x2000 [ 4782.686984][ T254] inet6_addr_add+0x30e/0xa40 [ 4782.686984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4782.686984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4782.686984][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.686984][ T254] netlink_unicast+0x449/0x710 [ 4782.686984][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.686984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.686984][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.686984][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.686984][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.686984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4782.686984][ T254] [ 4782.689240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.689240][ T254] netdev_get_by_index+0x5e/0x80 [ 4782.689240][ T254] fib6_nh_init+0x3d8/0x1580 [ 4782.689240][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4782.689240][ T254] ip6_route_add+0x1c/0x140 [ 4782.689240][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4782.689240][ T254] addrconf_add_dev+0xe2/0x170 [ 4782.689240][ T254] inet6_addr_add+0x12f/0xa40 [ 4782.689240][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4782.689240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4782.689240][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.689240][ T254] netlink_unicast+0x449/0x710 [ 4782.689240][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.689240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.689240][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.689240][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.689240][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.689240][ T254] [ 4782.691453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.691453][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4782.691453][ T254] ipv6_find_idev+0x102/0x170 [ 4782.691453][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4782.691453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4782.691453][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.691453][ T254] netlink_unicast+0x449/0x710 [ 4782.691453][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.691453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.691453][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.691453][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.691453][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.691453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4782.691453][ T254] [ 4782.693191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4782.693191][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4782.693191][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4782.693191][ T254] ipv6_find_idev+0x102/0x170 [ 4782.693191][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4782.693191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4782.693191][ T254] netlink_rcv_skb+0x130/0x360 [ 4782.693191][ T254] netlink_unicast+0x449/0x710 [ 4782.693191][ T254] netlink_sendmsg+0x723/0xbe0 [ 4782.693191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4782.693191][ T254] ___sys_sendmsg+0xee/0x170 [ 4782.693191][ T254] __sys_sendmsg+0xcd/0x170 [ 4782.693191][ T254] do_syscall_64+0xc6/0x1e0 [ 4782.693191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4782.693191][ T254] [ 4792.935845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4792.936284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.936284][ T254] dst_init+0x84/0x4a0 [ 4792.936284][ T254] dst_alloc+0x97/0x150 [ 4792.936284][ T254] ip6_dst_alloc+0x23/0x90 [ 4792.936284][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4792.936284][ T254] ip6_pol_route+0x56f/0x840 [ 4792.936284][ T254] fib6_rule_lookup+0x334/0x630 [ 4792.936284][ T254] ip6_route_output_flags+0x259/0x480 [ 4792.936284][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4792.936284][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4792.936284][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.936284][ T254] netlink_unicast+0x449/0x710 [ 4792.936284][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.936284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.936284][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.936284][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.936284][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.936284][ T254] [ 4792.938495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.938495][ T254] netdev_get_by_index+0x5e/0x80 [ 4792.938495][ T254] fib6_nh_init+0x3d8/0x1580 [ 4792.938495][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4792.938495][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4792.938495][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4792.938495][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4792.938495][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4792.938495][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4792.938495][ T254] addrconf_dad_begin+0x310/0x670 [ 4792.938495][ T254] addrconf_dad_work+0x10b/0xab0 [ 4792.938495][ T254] process_one_work+0x84d/0x18a0 [ 4792.938495][ T254] worker_thread+0x587/0xd30 [ 4792.938495][ T254] kthread+0x28a/0x350 [ 4792.938495][ T254] ret_from_fork+0x31/0x70 [ 4792.938495][ T254] ret_from_fork_asm+0x1a/0x30 [ 4792.938495][ T254] [ 4792.940657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.940657][ T254] netdev_get_by_index+0x5e/0x80 [ 4792.940657][ T254] fib6_nh_init+0x3d8/0x1580 [ 4792.940657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4792.940657][ T254] ip6_route_add+0x1c/0x140 [ 4792.940657][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4792.940657][ T254] inet6_addr_add+0x4f8/0xa40 [ 4792.940657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4792.940657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4792.940657][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.940657][ T254] netlink_unicast+0x449/0x710 [ 4792.940657][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.940657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.940657][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.940657][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.940657][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.940657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4792.940657][ T254] [ 4792.942920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.942920][ T254] netdev_get_by_index+0x5e/0x80 [ 4792.942920][ T254] fib6_nh_init+0x3d8/0x1580 [ 4792.942920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4792.942920][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4792.942920][ T254] ipv6_add_addr+0x411/0x2000 [ 4792.942920][ T254] inet6_addr_add+0x30e/0xa40 [ 4792.942920][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4792.942920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4792.942920][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.942920][ T254] netlink_unicast+0x449/0x710 [ 4792.942920][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.942920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.942920][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.942920][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.942920][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.942920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4792.942920][ T254] [ 4792.945272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.945272][ T254] netdev_get_by_index+0x5e/0x80 [ 4792.945272][ T254] fib6_nh_init+0x3d8/0x1580 [ 4792.945272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4792.945272][ T254] ip6_route_add+0x1c/0x140 [ 4792.945272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4792.945272][ T254] addrconf_add_dev+0xe2/0x170 [ 4792.945272][ T254] inet6_addr_add+0x12f/0xa40 [ 4792.945272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4792.945272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4792.945272][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.945272][ T254] netlink_unicast+0x449/0x710 [ 4792.945272][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.945272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.945272][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.945272][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.945272][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.945272][ T254] [ 4792.947504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.947504][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4792.947504][ T254] ipv6_find_idev+0x102/0x170 [ 4792.947504][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4792.947504][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4792.947504][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.947504][ T254] netlink_unicast+0x449/0x710 [ 4792.947504][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.947504][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.947504][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.947504][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.947504][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.947504][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4792.947504][ T254] [ 4792.949243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4792.949243][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4792.949243][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4792.949243][ T254] ipv6_find_idev+0x102/0x170 [ 4792.949243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4792.949243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4792.949243][ T254] netlink_rcv_skb+0x130/0x360 [ 4792.949243][ T254] netlink_unicast+0x449/0x710 [ 4792.949243][ T254] netlink_sendmsg+0x723/0xbe0 [ 4792.949243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4792.949243][ T254] ___sys_sendmsg+0xee/0x170 [ 4792.949243][ T254] __sys_sendmsg+0xcd/0x170 [ 4792.949243][ T254] do_syscall_64+0xc6/0x1e0 [ 4792.949243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4792.949243][ T254] [ 4803.191871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4803.192338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.192338][ T254] dst_init+0x84/0x4a0 [ 4803.192338][ T254] dst_alloc+0x97/0x150 [ 4803.192338][ T254] ip6_dst_alloc+0x23/0x90 [ 4803.192338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4803.192338][ T254] ip6_pol_route+0x56f/0x840 [ 4803.192338][ T254] fib6_rule_lookup+0x334/0x630 [ 4803.192338][ T254] ip6_route_output_flags+0x259/0x480 [ 4803.192338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4803.192338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4803.192338][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.192338][ T254] netlink_unicast+0x449/0x710 [ 4803.192338][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.192338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.192338][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.192338][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.192338][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.192338][ T254] [ 4803.194532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.194532][ T254] netdev_get_by_index+0x5e/0x80 [ 4803.194532][ T254] fib6_nh_init+0x3d8/0x1580 [ 4803.194532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4803.194532][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4803.194532][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4803.194532][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4803.194532][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4803.194532][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4803.194532][ T254] addrconf_dad_begin+0x310/0x670 [ 4803.194532][ T254] addrconf_dad_work+0x10b/0xab0 [ 4803.194532][ T254] process_one_work+0x84d/0x18a0 [ 4803.194532][ T254] worker_thread+0x587/0xd30 [ 4803.194532][ T254] kthread+0x28a/0x350 [ 4803.194532][ T254] ret_from_fork+0x31/0x70 [ 4803.194532][ T254] ret_from_fork_asm+0x1a/0x30 [ 4803.194532][ T254] [ 4803.196770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.196770][ T254] netdev_get_by_index+0x5e/0x80 [ 4803.196770][ T254] fib6_nh_init+0x3d8/0x1580 [ 4803.196770][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4803.196770][ T254] ip6_route_add+0x1c/0x140 [ 4803.196770][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4803.196770][ T254] inet6_addr_add+0x4f8/0xa40 [ 4803.196770][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4803.196770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4803.196770][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.196770][ T254] netlink_unicast+0x449/0x710 [ 4803.196770][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.196770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.196770][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.196770][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.196770][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.196770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4803.196770][ T254] [ 4803.199012][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.199012][ T254] netdev_get_by_index+0x5e/0x80 [ 4803.199012][ T254] fib6_nh_init+0x3d8/0x1580 [ 4803.199012][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4803.199012][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4803.199012][ T254] ipv6_add_addr+0x411/0x2000 [ 4803.199012][ T254] inet6_addr_add+0x30e/0xa40 [ 4803.199012][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4803.199012][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4803.199012][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.199012][ T254] netlink_unicast+0x449/0x710 [ 4803.199012][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.199012][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.199012][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.199012][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.199012][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.199012][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4803.199012][ T254] [ 4803.201242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.201242][ T254] netdev_get_by_index+0x5e/0x80 [ 4803.201242][ T254] fib6_nh_init+0x3d8/0x1580 [ 4803.201242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4803.201242][ T254] ip6_route_add+0x1c/0x140 [ 4803.201242][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4803.201242][ T254] addrconf_add_dev+0xe2/0x170 [ 4803.201242][ T254] inet6_addr_add+0x12f/0xa40 [ 4803.201242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4803.201242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4803.201242][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.201242][ T254] netlink_unicast+0x449/0x710 [ 4803.201242][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.201242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.201242][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.201242][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.201242][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.201242][ T254] [ 4803.203437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.203437][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4803.203437][ T254] ipv6_find_idev+0x102/0x170 [ 4803.203437][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4803.203437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4803.203437][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.203437][ T254] netlink_unicast+0x449/0x710 [ 4803.203437][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.203437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.203437][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.203437][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.203437][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.203437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4803.203437][ T254] [ 4803.205192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4803.205192][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4803.205192][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4803.205192][ T254] ipv6_find_idev+0x102/0x170 [ 4803.205192][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4803.205192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4803.205192][ T254] netlink_rcv_skb+0x130/0x360 [ 4803.205192][ T254] netlink_unicast+0x449/0x710 [ 4803.205192][ T254] netlink_sendmsg+0x723/0xbe0 [ 4803.205192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4803.205192][ T254] ___sys_sendmsg+0xee/0x170 [ 4803.205192][ T254] __sys_sendmsg+0xcd/0x170 [ 4803.205192][ T254] do_syscall_64+0xc6/0x1e0 [ 4803.205192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4803.205192][ T254] [ 4813.367862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4813.368320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.368320][ T254] dst_init+0x84/0x4a0 [ 4813.368320][ T254] dst_alloc+0x97/0x150 [ 4813.368320][ T254] ip6_dst_alloc+0x23/0x90 [ 4813.368320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4813.368320][ T254] ip6_pol_route+0x56f/0x840 [ 4813.368320][ T254] fib6_rule_lookup+0x334/0x630 [ 4813.368320][ T254] ip6_route_output_flags+0x259/0x480 [ 4813.368320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4813.368320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4813.368320][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.368320][ T254] netlink_unicast+0x449/0x710 [ 4813.368320][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.368320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.368320][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.368320][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.368320][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.368320][ T254] [ 4813.370511][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.370511][ T254] netdev_get_by_index+0x5e/0x80 [ 4813.370511][ T254] fib6_nh_init+0x3d8/0x1580 [ 4813.370511][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4813.370511][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4813.370511][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4813.370511][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4813.370511][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4813.370511][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4813.370511][ T254] addrconf_dad_begin+0x310/0x670 [ 4813.370511][ T254] addrconf_dad_work+0x10b/0xab0 [ 4813.370511][ T254] process_one_work+0x84d/0x18a0 [ 4813.370511][ T254] worker_thread+0x587/0xd30 [ 4813.370511][ T254] kthread+0x28a/0x350 [ 4813.370511][ T254] ret_from_fork+0x31/0x70 [ 4813.370511][ T254] ret_from_fork_asm+0x1a/0x30 [ 4813.370511][ T254] [ 4813.372646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.372646][ T254] netdev_get_by_index+0x5e/0x80 [ 4813.372646][ T254] fib6_nh_init+0x3d8/0x1580 [ 4813.372646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4813.372646][ T254] ip6_route_add+0x1c/0x140 [ 4813.372646][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4813.372646][ T254] inet6_addr_add+0x4f8/0xa40 [ 4813.372646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4813.372646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4813.372646][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.372646][ T254] netlink_unicast+0x449/0x710 [ 4813.372646][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.372646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.372646][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.372646][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.372646][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.372646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4813.372646][ T254] [ 4813.374893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.374893][ T254] netdev_get_by_index+0x5e/0x80 [ 4813.374893][ T254] fib6_nh_init+0x3d8/0x1580 [ 4813.374893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4813.374893][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4813.374893][ T254] ipv6_add_addr+0x411/0x2000 [ 4813.374893][ T254] inet6_addr_add+0x30e/0xa40 [ 4813.374893][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4813.374893][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4813.374893][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.374893][ T254] netlink_unicast+0x449/0x710 [ 4813.374893][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.374893][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.374893][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.374893][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.374893][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.374893][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4813.374893][ T254] [ 4813.377122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.377122][ T254] netdev_get_by_index+0x5e/0x80 [ 4813.377122][ T254] fib6_nh_init+0x3d8/0x1580 [ 4813.377122][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4813.377122][ T254] ip6_route_add+0x1c/0x140 [ 4813.377122][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4813.377122][ T254] addrconf_add_dev+0xe2/0x170 [ 4813.377122][ T254] inet6_addr_add+0x12f/0xa40 [ 4813.377122][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4813.377122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4813.377122][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.377122][ T254] netlink_unicast+0x449/0x710 [ 4813.377122][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.377122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.377122][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.377122][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.377122][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.377122][ T254] [ 4813.379317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.379317][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4813.379317][ T254] ipv6_find_idev+0x102/0x170 [ 4813.379317][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4813.379317][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4813.379317][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.379317][ T254] netlink_unicast+0x449/0x710 [ 4813.379317][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.379317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.379317][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.379317][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.379317][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.379317][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4813.379317][ T254] [ 4813.381032][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4813.381032][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4813.381032][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4813.381032][ T254] ipv6_find_idev+0x102/0x170 [ 4813.381032][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4813.381032][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4813.381032][ T254] netlink_rcv_skb+0x130/0x360 [ 4813.381032][ T254] netlink_unicast+0x449/0x710 [ 4813.381032][ T254] netlink_sendmsg+0x723/0xbe0 [ 4813.381032][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4813.381032][ T254] ___sys_sendmsg+0xee/0x170 [ 4813.381032][ T254] __sys_sendmsg+0xcd/0x170 [ 4813.381032][ T254] do_syscall_64+0xc6/0x1e0 [ 4813.381032][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4813.381032][ T254] [ 4823.519847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4823.520313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.520313][ T254] dst_init+0x84/0x4a0 [ 4823.520313][ T254] dst_alloc+0x97/0x150 [ 4823.520313][ T254] ip6_dst_alloc+0x23/0x90 [ 4823.520313][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4823.520313][ T254] ip6_pol_route+0x56f/0x840 [ 4823.520313][ T254] fib6_rule_lookup+0x334/0x630 [ 4823.520313][ T254] ip6_route_output_flags+0x259/0x480 [ 4823.520313][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4823.520313][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4823.520313][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.520313][ T254] netlink_unicast+0x449/0x710 [ 4823.520313][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.520313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.520313][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.520313][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.520313][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.520313][ T254] [ 4823.522602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.522602][ T254] netdev_get_by_index+0x5e/0x80 [ 4823.522602][ T254] fib6_nh_init+0x3d8/0x1580 [ 4823.522602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4823.522602][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4823.522602][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4823.522602][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4823.522602][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4823.522602][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4823.522602][ T254] addrconf_dad_begin+0x310/0x670 [ 4823.522602][ T254] addrconf_dad_work+0x10b/0xab0 [ 4823.522602][ T254] process_one_work+0x84d/0x18a0 [ 4823.522602][ T254] worker_thread+0x587/0xd30 [ 4823.522602][ T254] kthread+0x28a/0x350 [ 4823.522602][ T254] ret_from_fork+0x31/0x70 [ 4823.522602][ T254] ret_from_fork_asm+0x1a/0x30 [ 4823.522602][ T254] [ 4823.524760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.524760][ T254] netdev_get_by_index+0x5e/0x80 [ 4823.524760][ T254] fib6_nh_init+0x3d8/0x1580 [ 4823.524760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4823.524760][ T254] ip6_route_add+0x1c/0x140 [ 4823.524760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4823.524760][ T254] inet6_addr_add+0x4f8/0xa40 [ 4823.524760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4823.524760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4823.524760][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.524760][ T254] netlink_unicast+0x449/0x710 [ 4823.524760][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.524760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.524760][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.524760][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.524760][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.524760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4823.524760][ T254] [ 4823.526993][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.526993][ T254] netdev_get_by_index+0x5e/0x80 [ 4823.526993][ T254] fib6_nh_init+0x3d8/0x1580 [ 4823.526993][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4823.526993][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4823.526993][ T254] ipv6_add_addr+0x411/0x2000 [ 4823.526993][ T254] inet6_addr_add+0x30e/0xa40 [ 4823.526993][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4823.526993][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4823.526993][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.526993][ T254] netlink_unicast+0x449/0x710 [ 4823.526993][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.526993][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.526993][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.526993][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.526993][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.526993][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4823.526993][ T254] [ 4823.529610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.529610][ T254] netdev_get_by_index+0x5e/0x80 [ 4823.529610][ T254] fib6_nh_init+0x3d8/0x1580 [ 4823.529610][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4823.529610][ T254] ip6_route_add+0x1c/0x140 [ 4823.529610][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4823.529610][ T254] addrconf_add_dev+0xe2/0x170 [ 4823.529610][ T254] inet6_addr_add+0x12f/0xa40 [ 4823.529610][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4823.529610][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4823.529610][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.529610][ T254] netlink_unicast+0x449/0x710 [ 4823.529610][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.529610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.529610][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.529610][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.529610][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.529610][ T254] [ 4823.531803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.531803][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4823.531803][ T254] ipv6_find_idev+0x102/0x170 [ 4823.531803][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4823.531803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4823.531803][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.531803][ T254] netlink_unicast+0x449/0x710 [ 4823.531803][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.531803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.531803][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.531803][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.531803][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.531803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4823.531803][ T254] [ 4823.533519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4823.533519][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4823.533519][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4823.533519][ T254] ipv6_find_idev+0x102/0x170 [ 4823.533519][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4823.533519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4823.533519][ T254] netlink_rcv_skb+0x130/0x360 [ 4823.533519][ T254] netlink_unicast+0x449/0x710 [ 4823.533519][ T254] netlink_sendmsg+0x723/0xbe0 [ 4823.533519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4823.533519][ T254] ___sys_sendmsg+0xee/0x170 [ 4823.533519][ T254] __sys_sendmsg+0xcd/0x170 [ 4823.533519][ T254] do_syscall_64+0xc6/0x1e0 [ 4823.533519][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4823.533519][ T254] [ 4833.775852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4833.776313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.776313][ T254] dst_init+0x84/0x4a0 [ 4833.776313][ T254] dst_alloc+0x97/0x150 [ 4833.776313][ T254] ip6_dst_alloc+0x23/0x90 [ 4833.776313][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4833.776313][ T254] ip6_pol_route+0x56f/0x840 [ 4833.776313][ T254] fib6_rule_lookup+0x334/0x630 [ 4833.776313][ T254] ip6_route_output_flags+0x259/0x480 [ 4833.776313][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4833.776313][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4833.776313][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.776313][ T254] netlink_unicast+0x449/0x710 [ 4833.776313][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.776313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.776313][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.776313][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.776313][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.776313][ T254] [ 4833.778518][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.778518][ T254] netdev_get_by_index+0x5e/0x80 [ 4833.778518][ T254] fib6_nh_init+0x3d8/0x1580 [ 4833.778518][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4833.778518][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4833.778518][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4833.778518][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4833.778518][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4833.778518][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4833.778518][ T254] addrconf_dad_begin+0x310/0x670 [ 4833.778518][ T254] addrconf_dad_work+0x10b/0xab0 [ 4833.778518][ T254] process_one_work+0x84d/0x18a0 [ 4833.778518][ T254] worker_thread+0x587/0xd30 [ 4833.778518][ T254] kthread+0x28a/0x350 [ 4833.778518][ T254] ret_from_fork+0x31/0x70 [ 4833.778518][ T254] ret_from_fork_asm+0x1a/0x30 [ 4833.778518][ T254] [ 4833.780656][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.780656][ T254] netdev_get_by_index+0x5e/0x80 [ 4833.780656][ T254] fib6_nh_init+0x3d8/0x1580 [ 4833.780656][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4833.780656][ T254] ip6_route_add+0x1c/0x140 [ 4833.780656][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4833.780656][ T254] inet6_addr_add+0x4f8/0xa40 [ 4833.780656][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4833.780656][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4833.780656][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.780656][ T254] netlink_unicast+0x449/0x710 [ 4833.780656][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.780656][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.780656][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.780656][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.780656][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.780656][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4833.780656][ T254] [ 4833.782895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.782895][ T254] netdev_get_by_index+0x5e/0x80 [ 4833.782895][ T254] fib6_nh_init+0x3d8/0x1580 [ 4833.782895][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4833.782895][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4833.782895][ T254] ipv6_add_addr+0x411/0x2000 [ 4833.782895][ T254] inet6_addr_add+0x30e/0xa40 [ 4833.782895][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4833.782895][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4833.782895][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.782895][ T254] netlink_unicast+0x449/0x710 [ 4833.782895][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.782895][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.782895][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.782895][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.782895][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.782895][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4833.782895][ T254] [ 4833.785148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.785148][ T254] netdev_get_by_index+0x5e/0x80 [ 4833.785148][ T254] fib6_nh_init+0x3d8/0x1580 [ 4833.785148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4833.785148][ T254] ip6_route_add+0x1c/0x140 [ 4833.785148][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4833.785148][ T254] addrconf_add_dev+0xe2/0x170 [ 4833.785148][ T254] inet6_addr_add+0x12f/0xa40 [ 4833.785148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4833.785148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4833.785148][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.785148][ T254] netlink_unicast+0x449/0x710 [ 4833.785148][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.785148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.785148][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.785148][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.785148][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.785148][ T254] [ 4833.787340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.787340][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4833.787340][ T254] ipv6_find_idev+0x102/0x170 [ 4833.787340][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4833.787340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4833.787340][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.787340][ T254] netlink_unicast+0x449/0x710 [ 4833.787340][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.787340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.787340][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.787340][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.787340][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.787340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4833.787340][ T254] [ 4833.789057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4833.789057][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4833.789057][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4833.789057][ T254] ipv6_find_idev+0x102/0x170 [ 4833.789057][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4833.789057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4833.789057][ T254] netlink_rcv_skb+0x130/0x360 [ 4833.789057][ T254] netlink_unicast+0x449/0x710 [ 4833.789057][ T254] netlink_sendmsg+0x723/0xbe0 [ 4833.789057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4833.789057][ T254] ___sys_sendmsg+0xee/0x170 [ 4833.789057][ T254] __sys_sendmsg+0xcd/0x170 [ 4833.789057][ T254] do_syscall_64+0xc6/0x1e0 [ 4833.789057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4833.789057][ T254] [ 4843.863845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4843.864303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.864303][ T254] dst_init+0x84/0x4a0 [ 4843.864303][ T254] dst_alloc+0x97/0x150 [ 4843.864303][ T254] ip6_dst_alloc+0x23/0x90 [ 4843.864303][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4843.864303][ T254] ip6_pol_route+0x56f/0x840 [ 4843.864303][ T254] fib6_rule_lookup+0x334/0x630 [ 4843.864303][ T254] ip6_route_output_flags+0x259/0x480 [ 4843.864303][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4843.864303][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4843.864303][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.864303][ T254] netlink_unicast+0x449/0x710 [ 4843.864303][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.864303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.864303][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.864303][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.864303][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.864303][ T254] [ 4843.866514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.866514][ T254] netdev_get_by_index+0x5e/0x80 [ 4843.866514][ T254] fib6_nh_init+0x3d8/0x1580 [ 4843.866514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4843.866514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4843.866514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4843.866514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4843.866514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4843.866514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4843.866514][ T254] addrconf_dad_begin+0x310/0x670 [ 4843.866514][ T254] addrconf_dad_work+0x10b/0xab0 [ 4843.866514][ T254] process_one_work+0x84d/0x18a0 [ 4843.866514][ T254] worker_thread+0x587/0xd30 [ 4843.866514][ T254] kthread+0x28a/0x350 [ 4843.866514][ T254] ret_from_fork+0x31/0x70 [ 4843.866514][ T254] ret_from_fork_asm+0x1a/0x30 [ 4843.866514][ T254] [ 4843.868651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.868651][ T254] netdev_get_by_index+0x5e/0x80 [ 4843.868651][ T254] fib6_nh_init+0x3d8/0x1580 [ 4843.868651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4843.868651][ T254] ip6_route_add+0x1c/0x140 [ 4843.868651][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4843.868651][ T254] inet6_addr_add+0x4f8/0xa40 [ 4843.868651][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4843.868651][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4843.868651][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.868651][ T254] netlink_unicast+0x449/0x710 [ 4843.868651][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.868651][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.868651][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.868651][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.868651][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.868651][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4843.868651][ T254] [ 4843.870890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.870890][ T254] netdev_get_by_index+0x5e/0x80 [ 4843.870890][ T254] fib6_nh_init+0x3d8/0x1580 [ 4843.870890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4843.870890][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4843.870890][ T254] ipv6_add_addr+0x411/0x2000 [ 4843.870890][ T254] inet6_addr_add+0x30e/0xa40 [ 4843.870890][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4843.870890][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4843.870890][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.870890][ T254] netlink_unicast+0x449/0x710 [ 4843.870890][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.870890][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.870890][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.870890][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.870890][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.870890][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4843.870890][ T254] [ 4843.873126][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.873126][ T254] netdev_get_by_index+0x5e/0x80 [ 4843.873126][ T254] fib6_nh_init+0x3d8/0x1580 [ 4843.873126][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4843.873126][ T254] ip6_route_add+0x1c/0x140 [ 4843.873126][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4843.873126][ T254] addrconf_add_dev+0xe2/0x170 [ 4843.873126][ T254] inet6_addr_add+0x12f/0xa40 [ 4843.873126][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4843.873126][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4843.873126][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.873126][ T254] netlink_unicast+0x449/0x710 [ 4843.873126][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.873126][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.873126][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.873126][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.873126][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.873126][ T254] [ 4843.875321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.875321][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4843.875321][ T254] ipv6_find_idev+0x102/0x170 [ 4843.875321][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4843.875321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4843.875321][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.875321][ T254] netlink_unicast+0x449/0x710 [ 4843.875321][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.875321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.875321][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.875321][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.875321][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.875321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4843.875321][ T254] [ 4843.877044][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4843.877044][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4843.877044][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4843.877044][ T254] ipv6_find_idev+0x102/0x170 [ 4843.877044][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4843.877044][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4843.877044][ T254] netlink_rcv_skb+0x130/0x360 [ 4843.877044][ T254] netlink_unicast+0x449/0x710 [ 4843.877044][ T254] netlink_sendmsg+0x723/0xbe0 [ 4843.877044][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4843.877044][ T254] ___sys_sendmsg+0xee/0x170 [ 4843.877044][ T254] __sys_sendmsg+0xcd/0x170 [ 4843.877044][ T254] do_syscall_64+0xc6/0x1e0 [ 4843.877044][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4843.877044][ T254] [ 4853.919843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4853.920304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.920304][ T254] dst_init+0x84/0x4a0 [ 4853.920304][ T254] dst_alloc+0x97/0x150 [ 4853.920304][ T254] ip6_dst_alloc+0x23/0x90 [ 4853.920304][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4853.920304][ T254] ip6_pol_route+0x56f/0x840 [ 4853.920304][ T254] fib6_rule_lookup+0x334/0x630 [ 4853.920304][ T254] ip6_route_output_flags+0x259/0x480 [ 4853.920304][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4853.920304][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4853.920304][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.920304][ T254] netlink_unicast+0x449/0x710 [ 4853.920304][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.920304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.920304][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.920304][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.920304][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.920304][ T254] [ 4853.922500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.922500][ T254] netdev_get_by_index+0x5e/0x80 [ 4853.922500][ T254] fib6_nh_init+0x3d8/0x1580 [ 4853.922500][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4853.922500][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4853.922500][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4853.922500][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4853.922500][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4853.922500][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4853.922500][ T254] addrconf_dad_begin+0x310/0x670 [ 4853.922500][ T254] addrconf_dad_work+0x10b/0xab0 [ 4853.922500][ T254] process_one_work+0x84d/0x18a0 [ 4853.922500][ T254] worker_thread+0x587/0xd30 [ 4853.922500][ T254] kthread+0x28a/0x350 [ 4853.922500][ T254] ret_from_fork+0x31/0x70 [ 4853.922500][ T254] ret_from_fork_asm+0x1a/0x30 [ 4853.922500][ T254] [ 4853.924657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.924657][ T254] netdev_get_by_index+0x5e/0x80 [ 4853.924657][ T254] fib6_nh_init+0x3d8/0x1580 [ 4853.924657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4853.924657][ T254] ip6_route_add+0x1c/0x140 [ 4853.924657][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4853.924657][ T254] inet6_addr_add+0x4f8/0xa40 [ 4853.924657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4853.924657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4853.924657][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.924657][ T254] netlink_unicast+0x449/0x710 [ 4853.924657][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.924657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.924657][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.924657][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.924657][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.924657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4853.924657][ T254] [ 4853.926883][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.926883][ T254] netdev_get_by_index+0x5e/0x80 [ 4853.926883][ T254] fib6_nh_init+0x3d8/0x1580 [ 4853.926883][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4853.926883][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4853.926883][ T254] ipv6_add_addr+0x411/0x2000 [ 4853.926883][ T254] inet6_addr_add+0x30e/0xa40 [ 4853.926883][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4853.926883][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4853.926883][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.926883][ T254] netlink_unicast+0x449/0x710 [ 4853.926883][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.926883][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.926883][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.926883][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.926883][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.926883][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4853.926883][ T254] [ 4853.929112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.929112][ T254] netdev_get_by_index+0x5e/0x80 [ 4853.929112][ T254] fib6_nh_init+0x3d8/0x1580 [ 4853.929112][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4853.929112][ T254] ip6_route_add+0x1c/0x140 [ 4853.929112][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4853.929112][ T254] addrconf_add_dev+0xe2/0x170 [ 4853.929112][ T254] inet6_addr_add+0x12f/0xa40 [ 4853.929112][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4853.929112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4853.929112][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.929112][ T254] netlink_unicast+0x449/0x710 [ 4853.929112][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.929112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.929112][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.929112][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.929112][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.929112][ T254] [ 4853.931302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.931302][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4853.931302][ T254] ipv6_find_idev+0x102/0x170 [ 4853.931302][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4853.931302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4853.931302][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.931302][ T254] netlink_unicast+0x449/0x710 [ 4853.931302][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.931302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.931302][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.931302][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.931302][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.931302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4853.931302][ T254] [ 4853.933029][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4853.933029][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4853.933029][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4853.933029][ T254] ipv6_find_idev+0x102/0x170 [ 4853.933029][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4853.933029][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4853.933029][ T254] netlink_rcv_skb+0x130/0x360 [ 4853.933029][ T254] netlink_unicast+0x449/0x710 [ 4853.933029][ T254] netlink_sendmsg+0x723/0xbe0 [ 4853.933029][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4853.933029][ T254] ___sys_sendmsg+0xee/0x170 [ 4853.933029][ T254] __sys_sendmsg+0xcd/0x170 [ 4853.933029][ T254] do_syscall_64+0xc6/0x1e0 [ 4853.933029][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4853.933029][ T254] [ 4864.175843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4864.176314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.176314][ T254] dst_init+0x84/0x4a0 [ 4864.176314][ T254] dst_alloc+0x97/0x150 [ 4864.176314][ T254] ip6_dst_alloc+0x23/0x90 [ 4864.176314][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4864.176314][ T254] ip6_pol_route+0x56f/0x840 [ 4864.176314][ T254] fib6_rule_lookup+0x334/0x630 [ 4864.176314][ T254] ip6_route_output_flags+0x259/0x480 [ 4864.176314][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4864.176314][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4864.176314][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.176314][ T254] netlink_unicast+0x449/0x710 [ 4864.176314][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.176314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.176314][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.176314][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.176314][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.176314][ T254] [ 4864.178505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.178505][ T254] netdev_get_by_index+0x5e/0x80 [ 4864.178505][ T254] fib6_nh_init+0x3d8/0x1580 [ 4864.178505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4864.178505][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4864.178505][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4864.178505][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4864.178505][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4864.178505][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4864.178505][ T254] addrconf_dad_begin+0x310/0x670 [ 4864.178505][ T254] addrconf_dad_work+0x10b/0xab0 [ 4864.178505][ T254] process_one_work+0x84d/0x18a0 [ 4864.178505][ T254] worker_thread+0x587/0xd30 [ 4864.178505][ T254] kthread+0x28a/0x350 [ 4864.178505][ T254] ret_from_fork+0x31/0x70 [ 4864.178505][ T254] ret_from_fork_asm+0x1a/0x30 [ 4864.178505][ T254] [ 4864.180644][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.180644][ T254] netdev_get_by_index+0x5e/0x80 [ 4864.180644][ T254] fib6_nh_init+0x3d8/0x1580 [ 4864.180644][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4864.180644][ T254] ip6_route_add+0x1c/0x140 [ 4864.180644][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4864.180644][ T254] inet6_addr_add+0x4f8/0xa40 [ 4864.180644][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4864.180644][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4864.180644][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.180644][ T254] netlink_unicast+0x449/0x710 [ 4864.180644][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.180644][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.180644][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.180644][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.180644][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.180644][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4864.180644][ T254] [ 4864.182878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.182878][ T254] netdev_get_by_index+0x5e/0x80 [ 4864.182878][ T254] fib6_nh_init+0x3d8/0x1580 [ 4864.182878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4864.182878][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4864.182878][ T254] ipv6_add_addr+0x411/0x2000 [ 4864.182878][ T254] inet6_addr_add+0x30e/0xa40 [ 4864.182878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4864.182878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4864.182878][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.182878][ T254] netlink_unicast+0x449/0x710 [ 4864.182878][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.182878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.182878][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.182878][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.182878][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.182878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4864.182878][ T254] [ 4864.185134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.185134][ T254] netdev_get_by_index+0x5e/0x80 [ 4864.185134][ T254] fib6_nh_init+0x3d8/0x1580 [ 4864.185134][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4864.185134][ T254] ip6_route_add+0x1c/0x140 [ 4864.185134][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4864.185134][ T254] addrconf_add_dev+0xe2/0x170 [ 4864.185134][ T254] inet6_addr_add+0x12f/0xa40 [ 4864.185134][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4864.185134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4864.185134][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.185134][ T254] netlink_unicast+0x449/0x710 [ 4864.185134][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.185134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.185134][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.185134][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.185134][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.185134][ T254] [ 4864.187336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.187336][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4864.187336][ T254] ipv6_find_idev+0x102/0x170 [ 4864.187336][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4864.187336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4864.187336][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.187336][ T254] netlink_unicast+0x449/0x710 [ 4864.187336][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.187336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.187336][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.187336][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.187336][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.187336][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4864.187336][ T254] [ 4864.189053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4864.189053][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4864.189053][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4864.189053][ T254] ipv6_find_idev+0x102/0x170 [ 4864.189053][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4864.189053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4864.189053][ T254] netlink_rcv_skb+0x130/0x360 [ 4864.189053][ T254] netlink_unicast+0x449/0x710 [ 4864.189053][ T254] netlink_sendmsg+0x723/0xbe0 [ 4864.189053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4864.189053][ T254] ___sys_sendmsg+0xee/0x170 [ 4864.189053][ T254] __sys_sendmsg+0xcd/0x170 [ 4864.189053][ T254] do_syscall_64+0xc6/0x1e0 [ 4864.189053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4864.189053][ T254] [ 4874.223844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4874.224311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.224311][ T254] dst_init+0x84/0x4a0 [ 4874.224311][ T254] dst_alloc+0x97/0x150 [ 4874.224311][ T254] ip6_dst_alloc+0x23/0x90 [ 4874.224311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4874.224311][ T254] ip6_pol_route+0x56f/0x840 [ 4874.224311][ T254] fib6_rule_lookup+0x334/0x630 [ 4874.224311][ T254] ip6_route_output_flags+0x259/0x480 [ 4874.224311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4874.224311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4874.224311][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.224311][ T254] netlink_unicast+0x449/0x710 [ 4874.224311][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.224311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.224311][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.224311][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.224311][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.224311][ T254] [ 4874.226606][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.226606][ T254] netdev_get_by_index+0x5e/0x80 [ 4874.226606][ T254] fib6_nh_init+0x3d8/0x1580 [ 4874.226606][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4874.226606][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4874.226606][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4874.226606][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4874.226606][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4874.226606][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4874.226606][ T254] addrconf_dad_begin+0x310/0x670 [ 4874.226606][ T254] addrconf_dad_work+0x10b/0xab0 [ 4874.226606][ T254] process_one_work+0x84d/0x18a0 [ 4874.226606][ T254] worker_thread+0x587/0xd30 [ 4874.226606][ T254] kthread+0x28a/0x350 [ 4874.226606][ T254] ret_from_fork+0x31/0x70 [ 4874.226606][ T254] ret_from_fork_asm+0x1a/0x30 [ 4874.226606][ T254] [ 4874.228738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.228738][ T254] netdev_get_by_index+0x5e/0x80 [ 4874.228738][ T254] fib6_nh_init+0x3d8/0x1580 [ 4874.228738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4874.228738][ T254] ip6_route_add+0x1c/0x140 [ 4874.228738][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4874.228738][ T254] inet6_addr_add+0x4f8/0xa40 [ 4874.228738][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4874.228738][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4874.228738][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.228738][ T254] netlink_unicast+0x449/0x710 [ 4874.228738][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.228738][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.228738][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.228738][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.228738][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.228738][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4874.228738][ T254] [ 4874.230969][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.230969][ T254] netdev_get_by_index+0x5e/0x80 [ 4874.230969][ T254] fib6_nh_init+0x3d8/0x1580 [ 4874.230969][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4874.230969][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4874.230969][ T254] ipv6_add_addr+0x411/0x2000 [ 4874.230969][ T254] inet6_addr_add+0x30e/0xa40 [ 4874.230969][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4874.230969][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4874.230969][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.230969][ T254] netlink_unicast+0x449/0x710 [ 4874.230969][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.230969][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.230969][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.230969][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.230969][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.230969][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4874.230969][ T254] [ 4874.233208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.233208][ T254] netdev_get_by_index+0x5e/0x80 [ 4874.233208][ T254] fib6_nh_init+0x3d8/0x1580 [ 4874.233208][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4874.233208][ T254] ip6_route_add+0x1c/0x140 [ 4874.233208][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4874.233208][ T254] addrconf_add_dev+0xe2/0x170 [ 4874.233208][ T254] inet6_addr_add+0x12f/0xa40 [ 4874.233208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4874.233208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4874.233208][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.233208][ T254] netlink_unicast+0x449/0x710 [ 4874.233208][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.233208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.233208][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.233208][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.233208][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.233208][ T254] [ 4874.235413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.235413][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4874.235413][ T254] ipv6_find_idev+0x102/0x170 [ 4874.235413][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4874.235413][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4874.235413][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.235413][ T254] netlink_unicast+0x449/0x710 [ 4874.235413][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.235413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.235413][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.235413][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.235413][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.235413][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4874.235413][ T254] [ 4874.237129][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4874.237129][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4874.237129][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4874.237129][ T254] ipv6_find_idev+0x102/0x170 [ 4874.237129][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4874.237129][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4874.237129][ T254] netlink_rcv_skb+0x130/0x360 [ 4874.237129][ T254] netlink_unicast+0x449/0x710 [ 4874.237129][ T254] netlink_sendmsg+0x723/0xbe0 [ 4874.237129][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4874.237129][ T254] ___sys_sendmsg+0xee/0x170 [ 4874.237129][ T254] __sys_sendmsg+0xcd/0x170 [ 4874.237129][ T254] do_syscall_64+0xc6/0x1e0 [ 4874.237129][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4874.237129][ T254] [ 4884.479937][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4884.480398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.480398][ T254] dst_init+0x84/0x4a0 [ 4884.480398][ T254] dst_alloc+0x97/0x150 [ 4884.480398][ T254] ip6_dst_alloc+0x23/0x90 [ 4884.480398][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4884.480398][ T254] ip6_pol_route+0x56f/0x840 [ 4884.480398][ T254] fib6_rule_lookup+0x334/0x630 [ 4884.480398][ T254] ip6_route_output_flags+0x259/0x480 [ 4884.480398][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4884.480398][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4884.480398][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.480398][ T254] netlink_unicast+0x449/0x710 [ 4884.480398][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.480398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.480398][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.480398][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.480398][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.480398][ T254] [ 4884.482589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.482589][ T254] netdev_get_by_index+0x5e/0x80 [ 4884.482589][ T254] fib6_nh_init+0x3d8/0x1580 [ 4884.482589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4884.482589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4884.482589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4884.482589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4884.482589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4884.482589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4884.482589][ T254] addrconf_dad_begin+0x310/0x670 [ 4884.482589][ T254] addrconf_dad_work+0x10b/0xab0 [ 4884.482589][ T254] process_one_work+0x84d/0x18a0 [ 4884.482589][ T254] worker_thread+0x587/0xd30 [ 4884.482589][ T254] kthread+0x28a/0x350 [ 4884.482589][ T254] ret_from_fork+0x31/0x70 [ 4884.482589][ T254] ret_from_fork_asm+0x1a/0x30 [ 4884.482589][ T254] [ 4884.484737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.484737][ T254] netdev_get_by_index+0x5e/0x80 [ 4884.484737][ T254] fib6_nh_init+0x3d8/0x1580 [ 4884.484737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4884.484737][ T254] ip6_route_add+0x1c/0x140 [ 4884.484737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4884.484737][ T254] inet6_addr_add+0x4f8/0xa40 [ 4884.484737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4884.484737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4884.484737][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.484737][ T254] netlink_unicast+0x449/0x710 [ 4884.484737][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.484737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.484737][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.484737][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.484737][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.484737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4884.484737][ T254] [ 4884.486975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.486975][ T254] netdev_get_by_index+0x5e/0x80 [ 4884.486975][ T254] fib6_nh_init+0x3d8/0x1580 [ 4884.486975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4884.486975][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4884.486975][ T254] ipv6_add_addr+0x411/0x2000 [ 4884.486975][ T254] inet6_addr_add+0x30e/0xa40 [ 4884.486975][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4884.486975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4884.486975][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.486975][ T254] netlink_unicast+0x449/0x710 [ 4884.486975][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.486975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.486975][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.486975][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.486975][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.486975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4884.486975][ T254] [ 4884.490117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.490117][ T254] netdev_get_by_index+0x5e/0x80 [ 4884.490117][ T254] fib6_nh_init+0x3d8/0x1580 [ 4884.490117][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4884.490117][ T254] ip6_route_add+0x1c/0x140 [ 4884.490117][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4884.490117][ T254] addrconf_add_dev+0xe2/0x170 [ 4884.490117][ T254] inet6_addr_add+0x12f/0xa40 [ 4884.490117][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4884.490117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4884.490117][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.490117][ T254] netlink_unicast+0x449/0x710 [ 4884.490117][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.490117][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.490117][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.490117][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.490117][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.490117][ T254] [ 4884.492301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.492301][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4884.492301][ T254] ipv6_find_idev+0x102/0x170 [ 4884.492301][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4884.492301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4884.492301][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.492301][ T254] netlink_unicast+0x449/0x710 [ 4884.492301][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.492301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.492301][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.492301][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.492301][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.492301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4884.492301][ T254] [ 4884.494018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4884.494018][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4884.494018][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4884.494018][ T254] ipv6_find_idev+0x102/0x170 [ 4884.494018][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4884.494018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4884.494018][ T254] netlink_rcv_skb+0x130/0x360 [ 4884.494018][ T254] netlink_unicast+0x449/0x710 [ 4884.494018][ T254] netlink_sendmsg+0x723/0xbe0 [ 4884.494018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4884.494018][ T254] ___sys_sendmsg+0xee/0x170 [ 4884.494018][ T254] __sys_sendmsg+0xcd/0x170 [ 4884.494018][ T254] do_syscall_64+0xc6/0x1e0 [ 4884.494018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4884.494018][ T254] [ 4894.631844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4894.632344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.632344][ T254] dst_init+0x84/0x4a0 [ 4894.632344][ T254] dst_alloc+0x97/0x150 [ 4894.632344][ T254] ip6_dst_alloc+0x23/0x90 [ 4894.632344][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4894.632344][ T254] ip6_pol_route+0x56f/0x840 [ 4894.632344][ T254] fib6_rule_lookup+0x334/0x630 [ 4894.632344][ T254] ip6_route_output_flags+0x259/0x480 [ 4894.632344][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4894.632344][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4894.632344][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.632344][ T254] netlink_unicast+0x449/0x710 [ 4894.632344][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.632344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.632344][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.632344][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.632344][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.632344][ T254] [ 4894.634566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.634566][ T254] netdev_get_by_index+0x5e/0x80 [ 4894.634566][ T254] fib6_nh_init+0x3d8/0x1580 [ 4894.634566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4894.634566][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4894.634566][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4894.634566][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4894.634566][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4894.634566][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4894.634566][ T254] addrconf_dad_begin+0x310/0x670 [ 4894.634566][ T254] addrconf_dad_work+0x10b/0xab0 [ 4894.634566][ T254] process_one_work+0x84d/0x18a0 [ 4894.634566][ T254] worker_thread+0x587/0xd30 [ 4894.634566][ T254] kthread+0x28a/0x350 [ 4894.634566][ T254] ret_from_fork+0x31/0x70 [ 4894.634566][ T254] ret_from_fork_asm+0x1a/0x30 [ 4894.634566][ T254] [ 4894.636736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.636736][ T254] netdev_get_by_index+0x5e/0x80 [ 4894.636736][ T254] fib6_nh_init+0x3d8/0x1580 [ 4894.636736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4894.636736][ T254] ip6_route_add+0x1c/0x140 [ 4894.636736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4894.636736][ T254] inet6_addr_add+0x4f8/0xa40 [ 4894.636736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4894.636736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4894.636736][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.636736][ T254] netlink_unicast+0x449/0x710 [ 4894.636736][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.636736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.636736][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.636736][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.636736][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.636736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4894.636736][ T254] [ 4894.639443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.639443][ T254] netdev_get_by_index+0x5e/0x80 [ 4894.639443][ T254] fib6_nh_init+0x3d8/0x1580 [ 4894.639443][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4894.639443][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4894.639443][ T254] ipv6_add_addr+0x411/0x2000 [ 4894.639443][ T254] inet6_addr_add+0x30e/0xa40 [ 4894.639443][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4894.639443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4894.639443][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.639443][ T254] netlink_unicast+0x449/0x710 [ 4894.639443][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.639443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.639443][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.639443][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.639443][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.639443][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4894.639443][ T254] [ 4894.641698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.641698][ T254] netdev_get_by_index+0x5e/0x80 [ 4894.641698][ T254] fib6_nh_init+0x3d8/0x1580 [ 4894.641698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4894.641698][ T254] ip6_route_add+0x1c/0x140 [ 4894.641698][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4894.641698][ T254] addrconf_add_dev+0xe2/0x170 [ 4894.641698][ T254] inet6_addr_add+0x12f/0xa40 [ 4894.641698][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4894.641698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4894.641698][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.641698][ T254] netlink_unicast+0x449/0x710 [ 4894.641698][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.641698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.641698][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.641698][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.641698][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.641698][ T254] [ 4894.643912][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.643912][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4894.643912][ T254] ipv6_find_idev+0x102/0x170 [ 4894.643912][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4894.643912][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4894.643912][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.643912][ T254] netlink_unicast+0x449/0x710 [ 4894.643912][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.643912][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.643912][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.643912][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.643912][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.643912][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4894.643912][ T254] [ 4894.645655][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4894.645655][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4894.645655][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4894.645655][ T254] ipv6_find_idev+0x102/0x170 [ 4894.645655][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4894.645655][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4894.645655][ T254] netlink_rcv_skb+0x130/0x360 [ 4894.645655][ T254] netlink_unicast+0x449/0x710 [ 4894.645655][ T254] netlink_sendmsg+0x723/0xbe0 [ 4894.645655][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4894.645655][ T254] ___sys_sendmsg+0xee/0x170 [ 4894.645655][ T254] __sys_sendmsg+0xcd/0x170 [ 4894.645655][ T254] do_syscall_64+0xc6/0x1e0 [ 4894.645655][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4894.645655][ T254] [ 4904.887839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4904.888322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.888322][ T254] dst_init+0x84/0x4a0 [ 4904.888322][ T254] dst_alloc+0x97/0x150 [ 4904.888322][ T254] ip6_dst_alloc+0x23/0x90 [ 4904.888322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4904.888322][ T254] ip6_pol_route+0x56f/0x840 [ 4904.888322][ T254] fib6_rule_lookup+0x334/0x630 [ 4904.888322][ T254] ip6_route_output_flags+0x259/0x480 [ 4904.888322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4904.888322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4904.888322][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.888322][ T254] netlink_unicast+0x449/0x710 [ 4904.888322][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.888322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.888322][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.888322][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.888322][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.888322][ T254] [ 4904.890543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.890543][ T254] netdev_get_by_index+0x5e/0x80 [ 4904.890543][ T254] fib6_nh_init+0x3d8/0x1580 [ 4904.890543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4904.890543][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4904.890543][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4904.890543][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4904.890543][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4904.890543][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4904.890543][ T254] addrconf_dad_begin+0x310/0x670 [ 4904.890543][ T254] addrconf_dad_work+0x10b/0xab0 [ 4904.890543][ T254] process_one_work+0x84d/0x18a0 [ 4904.890543][ T254] worker_thread+0x587/0xd30 [ 4904.890543][ T254] kthread+0x28a/0x350 [ 4904.890543][ T254] ret_from_fork+0x31/0x70 [ 4904.890543][ T254] ret_from_fork_asm+0x1a/0x30 [ 4904.890543][ T254] [ 4904.892706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.892706][ T254] netdev_get_by_index+0x5e/0x80 [ 4904.892706][ T254] fib6_nh_init+0x3d8/0x1580 [ 4904.892706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4904.892706][ T254] ip6_route_add+0x1c/0x140 [ 4904.892706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4904.892706][ T254] inet6_addr_add+0x4f8/0xa40 [ 4904.892706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4904.892706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4904.892706][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.892706][ T254] netlink_unicast+0x449/0x710 [ 4904.892706][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.892706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.892706][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.892706][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.892706][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.892706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4904.892706][ T254] [ 4904.895000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.895000][ T254] netdev_get_by_index+0x5e/0x80 [ 4904.895000][ T254] fib6_nh_init+0x3d8/0x1580 [ 4904.895000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4904.895000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4904.895000][ T254] ipv6_add_addr+0x411/0x2000 [ 4904.895000][ T254] inet6_addr_add+0x30e/0xa40 [ 4904.895000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4904.895000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4904.895000][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.895000][ T254] netlink_unicast+0x449/0x710 [ 4904.895000][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.895000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.895000][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.895000][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.895000][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.895000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4904.895000][ T254] [ 4904.897299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.897299][ T254] netdev_get_by_index+0x5e/0x80 [ 4904.897299][ T254] fib6_nh_init+0x3d8/0x1580 [ 4904.897299][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4904.897299][ T254] ip6_route_add+0x1c/0x140 [ 4904.897299][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4904.897299][ T254] addrconf_add_dev+0xe2/0x170 [ 4904.897299][ T254] inet6_addr_add+0x12f/0xa40 [ 4904.897299][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4904.897299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4904.897299][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.897299][ T254] netlink_unicast+0x449/0x710 [ 4904.897299][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.897299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.897299][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.897299][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.897299][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.897299][ T254] [ 4904.899946][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.899946][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4904.899946][ T254] ipv6_find_idev+0x102/0x170 [ 4904.899946][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4904.899946][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4904.899946][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.899946][ T254] netlink_unicast+0x449/0x710 [ 4904.899946][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.899946][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.899946][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.899946][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.899946][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.899946][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4904.899946][ T254] [ 4904.901678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4904.901678][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4904.901678][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4904.901678][ T254] ipv6_find_idev+0x102/0x170 [ 4904.901678][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4904.901678][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4904.901678][ T254] netlink_rcv_skb+0x130/0x360 [ 4904.901678][ T254] netlink_unicast+0x449/0x710 [ 4904.901678][ T254] netlink_sendmsg+0x723/0xbe0 [ 4904.901678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4904.901678][ T254] ___sys_sendmsg+0xee/0x170 [ 4904.901678][ T254] __sys_sendmsg+0xcd/0x170 [ 4904.901678][ T254] do_syscall_64+0xc6/0x1e0 [ 4904.901678][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4904.901678][ T254] [ 4915.143872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4915.144308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.144308][ T254] dst_init+0x84/0x4a0 [ 4915.144308][ T254] dst_alloc+0x97/0x150 [ 4915.144308][ T254] ip6_dst_alloc+0x23/0x90 [ 4915.144308][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4915.144308][ T254] ip6_pol_route+0x56f/0x840 [ 4915.144308][ T254] fib6_rule_lookup+0x334/0x630 [ 4915.144308][ T254] ip6_route_output_flags+0x259/0x480 [ 4915.144308][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4915.144308][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4915.144308][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.144308][ T254] netlink_unicast+0x449/0x710 [ 4915.144308][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.144308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.144308][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.144308][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.144308][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.144308][ T254] [ 4915.146515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.146515][ T254] netdev_get_by_index+0x5e/0x80 [ 4915.146515][ T254] fib6_nh_init+0x3d8/0x1580 [ 4915.146515][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4915.146515][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4915.146515][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4915.146515][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4915.146515][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4915.146515][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4915.146515][ T254] addrconf_dad_begin+0x310/0x670 [ 4915.146515][ T254] addrconf_dad_work+0x10b/0xab0 [ 4915.146515][ T254] process_one_work+0x84d/0x18a0 [ 4915.146515][ T254] worker_thread+0x587/0xd30 [ 4915.146515][ T254] kthread+0x28a/0x350 [ 4915.146515][ T254] ret_from_fork+0x31/0x70 [ 4915.146515][ T254] ret_from_fork_asm+0x1a/0x30 [ 4915.146515][ T254] [ 4915.148678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.148678][ T254] netdev_get_by_index+0x5e/0x80 [ 4915.148678][ T254] fib6_nh_init+0x3d8/0x1580 [ 4915.148678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4915.148678][ T254] ip6_route_add+0x1c/0x140 [ 4915.148678][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4915.148678][ T254] inet6_addr_add+0x4f8/0xa40 [ 4915.148678][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4915.148678][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4915.148678][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.148678][ T254] netlink_unicast+0x449/0x710 [ 4915.148678][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.148678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.148678][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.148678][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.148678][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.148678][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4915.148678][ T254] [ 4915.150937][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.150937][ T254] netdev_get_by_index+0x5e/0x80 [ 4915.150937][ T254] fib6_nh_init+0x3d8/0x1580 [ 4915.150937][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4915.150937][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4915.150937][ T254] ipv6_add_addr+0x411/0x2000 [ 4915.150937][ T254] inet6_addr_add+0x30e/0xa40 [ 4915.150937][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4915.150937][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4915.150937][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.150937][ T254] netlink_unicast+0x449/0x710 [ 4915.150937][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.150937][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.150937][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.150937][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.150937][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.150937][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4915.150937][ T254] [ 4915.153199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.153199][ T254] netdev_get_by_index+0x5e/0x80 [ 4915.153199][ T254] fib6_nh_init+0x3d8/0x1580 [ 4915.153199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4915.153199][ T254] ip6_route_add+0x1c/0x140 [ 4915.153199][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4915.153199][ T254] addrconf_add_dev+0xe2/0x170 [ 4915.153199][ T254] inet6_addr_add+0x12f/0xa40 [ 4915.153199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4915.153199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4915.153199][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.153199][ T254] netlink_unicast+0x449/0x710 [ 4915.153199][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.153199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.153199][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.153199][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.153199][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.153199][ T254] [ 4915.155425][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.155425][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4915.155425][ T254] ipv6_find_idev+0x102/0x170 [ 4915.155425][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4915.155425][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4915.155425][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.155425][ T254] netlink_unicast+0x449/0x710 [ 4915.155425][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.155425][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.155425][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.155425][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.155425][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.155425][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4915.155425][ T254] [ 4915.157166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4915.157166][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4915.157166][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4915.157166][ T254] ipv6_find_idev+0x102/0x170 [ 4915.157166][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4915.157166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4915.157166][ T254] netlink_rcv_skb+0x130/0x360 [ 4915.157166][ T254] netlink_unicast+0x449/0x710 [ 4915.157166][ T254] netlink_sendmsg+0x723/0xbe0 [ 4915.157166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4915.157166][ T254] ___sys_sendmsg+0xee/0x170 [ 4915.157166][ T254] __sys_sendmsg+0xcd/0x170 [ 4915.157166][ T254] do_syscall_64+0xc6/0x1e0 [ 4915.157166][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4915.157166][ T254] [ 4925.399846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4925.400387][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.400387][ T254] dst_init+0x84/0x4a0 [ 4925.400387][ T254] dst_alloc+0x97/0x150 [ 4925.400387][ T254] ip6_dst_alloc+0x23/0x90 [ 4925.400387][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4925.400387][ T254] ip6_pol_route+0x56f/0x840 [ 4925.400387][ T254] fib6_rule_lookup+0x334/0x630 [ 4925.400387][ T254] ip6_route_output_flags+0x259/0x480 [ 4925.400387][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4925.400387][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4925.400387][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.400387][ T254] netlink_unicast+0x449/0x710 [ 4925.400387][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.400387][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.400387][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.400387][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.400387][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.400387][ T254] [ 4925.403161][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.403161][ T254] netdev_get_by_index+0x5e/0x80 [ 4925.403161][ T254] fib6_nh_init+0x3d8/0x1580 [ 4925.403161][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4925.403161][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4925.403161][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4925.403161][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4925.403161][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4925.403161][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4925.403161][ T254] addrconf_dad_begin+0x310/0x670 [ 4925.403161][ T254] addrconf_dad_work+0x10b/0xab0 [ 4925.403161][ T254] process_one_work+0x84d/0x18a0 [ 4925.403161][ T254] worker_thread+0x587/0xd30 [ 4925.403161][ T254] kthread+0x28a/0x350 [ 4925.403161][ T254] ret_from_fork+0x31/0x70 [ 4925.403161][ T254] ret_from_fork_asm+0x1a/0x30 [ 4925.403161][ T254] [ 4925.405359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.405359][ T254] netdev_get_by_index+0x5e/0x80 [ 4925.405359][ T254] fib6_nh_init+0x3d8/0x1580 [ 4925.405359][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4925.405359][ T254] ip6_route_add+0x1c/0x140 [ 4925.405359][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4925.405359][ T254] inet6_addr_add+0x4f8/0xa40 [ 4925.405359][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4925.405359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4925.405359][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.405359][ T254] netlink_unicast+0x449/0x710 [ 4925.405359][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.405359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.405359][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.405359][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.405359][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.405359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4925.405359][ T254] [ 4925.407611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.407611][ T254] netdev_get_by_index+0x5e/0x80 [ 4925.407611][ T254] fib6_nh_init+0x3d8/0x1580 [ 4925.407611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4925.407611][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4925.407611][ T254] ipv6_add_addr+0x411/0x2000 [ 4925.407611][ T254] inet6_addr_add+0x30e/0xa40 [ 4925.407611][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4925.407611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4925.407611][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.407611][ T254] netlink_unicast+0x449/0x710 [ 4925.407611][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.407611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.407611][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.407611][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.407611][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.407611][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4925.407611][ T254] [ 4925.409869][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.409869][ T254] netdev_get_by_index+0x5e/0x80 [ 4925.409869][ T254] fib6_nh_init+0x3d8/0x1580 [ 4925.409869][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4925.409869][ T254] ip6_route_add+0x1c/0x140 [ 4925.409869][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4925.409869][ T254] addrconf_add_dev+0xe2/0x170 [ 4925.409869][ T254] inet6_addr_add+0x12f/0xa40 [ 4925.409869][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4925.409869][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4925.409869][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.409869][ T254] netlink_unicast+0x449/0x710 [ 4925.409869][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.409869][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.409869][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.409869][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.409869][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.409869][ T254] [ 4925.412083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.412083][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4925.412083][ T254] ipv6_find_idev+0x102/0x170 [ 4925.412083][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4925.412083][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4925.412083][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.412083][ T254] netlink_unicast+0x449/0x710 [ 4925.412083][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.412083][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.412083][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.412083][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.412083][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.412083][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4925.412083][ T254] [ 4925.413822][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4925.413822][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4925.413822][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4925.413822][ T254] ipv6_find_idev+0x102/0x170 [ 4925.413822][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4925.413822][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4925.413822][ T254] netlink_rcv_skb+0x130/0x360 [ 4925.413822][ T254] netlink_unicast+0x449/0x710 [ 4925.413822][ T254] netlink_sendmsg+0x723/0xbe0 [ 4925.413822][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4925.413822][ T254] ___sys_sendmsg+0xee/0x170 [ 4925.413822][ T254] __sys_sendmsg+0xcd/0x170 [ 4925.413822][ T254] do_syscall_64+0xc6/0x1e0 [ 4925.413822][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4925.413822][ T254] [ 4935.655848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4935.656342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.656342][ T254] dst_init+0x84/0x4a0 [ 4935.656342][ T254] dst_alloc+0x97/0x150 [ 4935.656342][ T254] ip6_dst_alloc+0x23/0x90 [ 4935.656342][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4935.656342][ T254] ip6_pol_route+0x56f/0x840 [ 4935.656342][ T254] fib6_rule_lookup+0x334/0x630 [ 4935.656342][ T254] ip6_route_output_flags+0x259/0x480 [ 4935.656342][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4935.656342][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4935.656342][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.656342][ T254] netlink_unicast+0x449/0x710 [ 4935.656342][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.656342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.656342][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.656342][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.656342][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.656342][ T254] [ 4935.658549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.658549][ T254] netdev_get_by_index+0x5e/0x80 [ 4935.658549][ T254] fib6_nh_init+0x3d8/0x1580 [ 4935.658549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4935.658549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4935.658549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4935.658549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4935.658549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4935.658549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4935.658549][ T254] addrconf_dad_begin+0x310/0x670 [ 4935.658549][ T254] addrconf_dad_work+0x10b/0xab0 [ 4935.658549][ T254] process_one_work+0x84d/0x18a0 [ 4935.658549][ T254] worker_thread+0x587/0xd30 [ 4935.658549][ T254] kthread+0x28a/0x350 [ 4935.658549][ T254] ret_from_fork+0x31/0x70 [ 4935.658549][ T254] ret_from_fork_asm+0x1a/0x30 [ 4935.658549][ T254] [ 4935.660713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.660713][ T254] netdev_get_by_index+0x5e/0x80 [ 4935.660713][ T254] fib6_nh_init+0x3d8/0x1580 [ 4935.660713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4935.660713][ T254] ip6_route_add+0x1c/0x140 [ 4935.660713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4935.660713][ T254] inet6_addr_add+0x4f8/0xa40 [ 4935.660713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4935.660713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4935.660713][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.660713][ T254] netlink_unicast+0x449/0x710 [ 4935.660713][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.660713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.660713][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.660713][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.660713][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.660713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4935.660713][ T254] [ 4935.662976][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.662976][ T254] netdev_get_by_index+0x5e/0x80 [ 4935.662976][ T254] fib6_nh_init+0x3d8/0x1580 [ 4935.662976][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4935.662976][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4935.662976][ T254] ipv6_add_addr+0x411/0x2000 [ 4935.662976][ T254] inet6_addr_add+0x30e/0xa40 [ 4935.662976][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4935.662976][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4935.662976][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.662976][ T254] netlink_unicast+0x449/0x710 [ 4935.662976][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.662976][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.662976][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.662976][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.662976][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.662976][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4935.662976][ T254] [ 4935.665251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.665251][ T254] netdev_get_by_index+0x5e/0x80 [ 4935.665251][ T254] fib6_nh_init+0x3d8/0x1580 [ 4935.665251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4935.665251][ T254] ip6_route_add+0x1c/0x140 [ 4935.665251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4935.665251][ T254] addrconf_add_dev+0xe2/0x170 [ 4935.665251][ T254] inet6_addr_add+0x12f/0xa40 [ 4935.665251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4935.665251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4935.665251][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.665251][ T254] netlink_unicast+0x449/0x710 [ 4935.665251][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.665251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.665251][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.665251][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.665251][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.665251][ T254] [ 4935.667469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.667469][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4935.667469][ T254] ipv6_find_idev+0x102/0x170 [ 4935.667469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4935.667469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4935.667469][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.667469][ T254] netlink_unicast+0x449/0x710 [ 4935.667469][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.667469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.667469][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.667469][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.667469][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.667469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4935.667469][ T254] [ 4935.669205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4935.669205][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4935.669205][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4935.669205][ T254] ipv6_find_idev+0x102/0x170 [ 4935.669205][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4935.669205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4935.669205][ T254] netlink_rcv_skb+0x130/0x360 [ 4935.669205][ T254] netlink_unicast+0x449/0x710 [ 4935.669205][ T254] netlink_sendmsg+0x723/0xbe0 [ 4935.669205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4935.669205][ T254] ___sys_sendmsg+0xee/0x170 [ 4935.669205][ T254] __sys_sendmsg+0xcd/0x170 [ 4935.669205][ T254] do_syscall_64+0xc6/0x1e0 [ 4935.669205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4935.669205][ T254] [ 4945.911841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4945.912350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.912350][ T254] dst_init+0x84/0x4a0 [ 4945.912350][ T254] dst_alloc+0x97/0x150 [ 4945.912350][ T254] ip6_dst_alloc+0x23/0x90 [ 4945.912350][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4945.912350][ T254] ip6_pol_route+0x56f/0x840 [ 4945.912350][ T254] fib6_rule_lookup+0x334/0x630 [ 4945.912350][ T254] ip6_route_output_flags+0x259/0x480 [ 4945.912350][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4945.912350][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4945.912350][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.912350][ T254] netlink_unicast+0x449/0x710 [ 4945.912350][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.912350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.912350][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.912350][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.912350][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.912350][ T254] [ 4945.914608][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.914608][ T254] netdev_get_by_index+0x5e/0x80 [ 4945.914608][ T254] fib6_nh_init+0x3d8/0x1580 [ 4945.914608][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4945.914608][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4945.914608][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4945.914608][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4945.914608][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4945.914608][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4945.914608][ T254] addrconf_dad_begin+0x310/0x670 [ 4945.914608][ T254] addrconf_dad_work+0x10b/0xab0 [ 4945.914608][ T254] process_one_work+0x84d/0x18a0 [ 4945.914608][ T254] worker_thread+0x587/0xd30 [ 4945.914608][ T254] kthread+0x28a/0x350 [ 4945.914608][ T254] ret_from_fork+0x31/0x70 [ 4945.914608][ T254] ret_from_fork_asm+0x1a/0x30 [ 4945.914608][ T254] [ 4945.916772][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.916772][ T254] netdev_get_by_index+0x5e/0x80 [ 4945.916772][ T254] fib6_nh_init+0x3d8/0x1580 [ 4945.916772][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4945.916772][ T254] ip6_route_add+0x1c/0x140 [ 4945.916772][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4945.916772][ T254] inet6_addr_add+0x4f8/0xa40 [ 4945.916772][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4945.916772][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4945.916772][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.916772][ T254] netlink_unicast+0x449/0x710 [ 4945.916772][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.916772][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.916772][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.916772][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.916772][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.916772][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4945.916772][ T254] [ 4945.919038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.919038][ T254] netdev_get_by_index+0x5e/0x80 [ 4945.919038][ T254] fib6_nh_init+0x3d8/0x1580 [ 4945.919038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4945.919038][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4945.919038][ T254] ipv6_add_addr+0x411/0x2000 [ 4945.919038][ T254] inet6_addr_add+0x30e/0xa40 [ 4945.919038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4945.919038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4945.919038][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.919038][ T254] netlink_unicast+0x449/0x710 [ 4945.919038][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.919038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.919038][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.919038][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.919038][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.919038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4945.919038][ T254] [ 4945.921289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.921289][ T254] netdev_get_by_index+0x5e/0x80 [ 4945.921289][ T254] fib6_nh_init+0x3d8/0x1580 [ 4945.921289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4945.921289][ T254] ip6_route_add+0x1c/0x140 [ 4945.921289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4945.921289][ T254] addrconf_add_dev+0xe2/0x170 [ 4945.921289][ T254] inet6_addr_add+0x12f/0xa40 [ 4945.921289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4945.921289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4945.921289][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.921289][ T254] netlink_unicast+0x449/0x710 [ 4945.921289][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.921289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.921289][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.921289][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.921289][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.921289][ T254] [ 4945.923507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.923507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4945.923507][ T254] ipv6_find_idev+0x102/0x170 [ 4945.923507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4945.923507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4945.923507][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.923507][ T254] netlink_unicast+0x449/0x710 [ 4945.923507][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.923507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.923507][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.923507][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.923507][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.923507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4945.923507][ T254] [ 4945.925251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4945.925251][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4945.925251][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4945.925251][ T254] ipv6_find_idev+0x102/0x170 [ 4945.925251][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4945.925251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4945.925251][ T254] netlink_rcv_skb+0x130/0x360 [ 4945.925251][ T254] netlink_unicast+0x449/0x710 [ 4945.925251][ T254] netlink_sendmsg+0x723/0xbe0 [ 4945.925251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4945.925251][ T254] ___sys_sendmsg+0xee/0x170 [ 4945.925251][ T254] __sys_sendmsg+0xcd/0x170 [ 4945.925251][ T254] do_syscall_64+0xc6/0x1e0 [ 4945.925251][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4945.925251][ T254] [ 4956.111844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4956.112326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.112326][ T254] dst_init+0x84/0x4a0 [ 4956.112326][ T254] dst_alloc+0x97/0x150 [ 4956.112326][ T254] ip6_dst_alloc+0x23/0x90 [ 4956.112326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4956.112326][ T254] ip6_pol_route+0x56f/0x840 [ 4956.112326][ T254] fib6_rule_lookup+0x334/0x630 [ 4956.112326][ T254] ip6_route_output_flags+0x259/0x480 [ 4956.112326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4956.112326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4956.112326][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.112326][ T254] netlink_unicast+0x449/0x710 [ 4956.112326][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.112326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.112326][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.112326][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.112326][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.112326][ T254] [ 4956.114570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.114570][ T254] netdev_get_by_index+0x5e/0x80 [ 4956.114570][ T254] fib6_nh_init+0x3d8/0x1580 [ 4956.114570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4956.114570][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4956.114570][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4956.114570][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4956.114570][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4956.114570][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4956.114570][ T254] addrconf_dad_begin+0x310/0x670 [ 4956.114570][ T254] addrconf_dad_work+0x10b/0xab0 [ 4956.114570][ T254] process_one_work+0x84d/0x18a0 [ 4956.114570][ T254] worker_thread+0x587/0xd30 [ 4956.114570][ T254] kthread+0x28a/0x350 [ 4956.114570][ T254] ret_from_fork+0x31/0x70 [ 4956.114570][ T254] ret_from_fork_asm+0x1a/0x30 [ 4956.114570][ T254] [ 4956.116737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.116737][ T254] netdev_get_by_index+0x5e/0x80 [ 4956.116737][ T254] fib6_nh_init+0x3d8/0x1580 [ 4956.116737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4956.116737][ T254] ip6_route_add+0x1c/0x140 [ 4956.116737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4956.116737][ T254] inet6_addr_add+0x4f8/0xa40 [ 4956.116737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4956.116737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4956.116737][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.116737][ T254] netlink_unicast+0x449/0x710 [ 4956.116737][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.116737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.116737][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.116737][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.116737][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.116737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4956.116737][ T254] [ 4956.118990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.118990][ T254] netdev_get_by_index+0x5e/0x80 [ 4956.118990][ T254] fib6_nh_init+0x3d8/0x1580 [ 4956.118990][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4956.118990][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4956.118990][ T254] ipv6_add_addr+0x411/0x2000 [ 4956.118990][ T254] inet6_addr_add+0x30e/0xa40 [ 4956.118990][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4956.118990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4956.118990][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.118990][ T254] netlink_unicast+0x449/0x710 [ 4956.118990][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.118990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.118990][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.118990][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.118990][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.118990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4956.118990][ T254] [ 4956.121247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.121247][ T254] netdev_get_by_index+0x5e/0x80 [ 4956.121247][ T254] fib6_nh_init+0x3d8/0x1580 [ 4956.121247][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4956.121247][ T254] ip6_route_add+0x1c/0x140 [ 4956.121247][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4956.121247][ T254] addrconf_add_dev+0xe2/0x170 [ 4956.121247][ T254] inet6_addr_add+0x12f/0xa40 [ 4956.121247][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4956.121247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4956.121247][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.121247][ T254] netlink_unicast+0x449/0x710 [ 4956.121247][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.121247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.121247][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.121247][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.121247][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.121247][ T254] [ 4956.123461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.123461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4956.123461][ T254] ipv6_find_idev+0x102/0x170 [ 4956.123461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4956.123461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4956.123461][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.123461][ T254] netlink_unicast+0x449/0x710 [ 4956.123461][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.123461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.123461][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.123461][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.123461][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.123461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4956.123461][ T254] [ 4956.125211][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4956.125211][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4956.125211][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4956.125211][ T254] ipv6_find_idev+0x102/0x170 [ 4956.125211][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4956.125211][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4956.125211][ T254] netlink_rcv_skb+0x130/0x360 [ 4956.125211][ T254] netlink_unicast+0x449/0x710 [ 4956.125211][ T254] netlink_sendmsg+0x723/0xbe0 [ 4956.125211][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4956.125211][ T254] ___sys_sendmsg+0xee/0x170 [ 4956.125211][ T254] __sys_sendmsg+0xcd/0x170 [ 4956.125211][ T254] do_syscall_64+0xc6/0x1e0 [ 4956.125211][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4956.125211][ T254] [ 4966.367845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4966.368334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.368334][ T254] dst_init+0x84/0x4a0 [ 4966.368334][ T254] dst_alloc+0x97/0x150 [ 4966.368334][ T254] ip6_dst_alloc+0x23/0x90 [ 4966.368334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4966.368334][ T254] ip6_pol_route+0x56f/0x840 [ 4966.368334][ T254] fib6_rule_lookup+0x334/0x630 [ 4966.368334][ T254] ip6_route_output_flags+0x259/0x480 [ 4966.368334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4966.368334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4966.368334][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.368334][ T254] netlink_unicast+0x449/0x710 [ 4966.368334][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.368334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.368334][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.368334][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.368334][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.368334][ T254] [ 4966.370550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.370550][ T254] netdev_get_by_index+0x5e/0x80 [ 4966.370550][ T254] fib6_nh_init+0x3d8/0x1580 [ 4966.370550][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4966.370550][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4966.370550][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4966.370550][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4966.370550][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4966.370550][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4966.370550][ T254] addrconf_dad_begin+0x310/0x670 [ 4966.370550][ T254] addrconf_dad_work+0x10b/0xab0 [ 4966.370550][ T254] process_one_work+0x84d/0x18a0 [ 4966.370550][ T254] worker_thread+0x587/0xd30 [ 4966.370550][ T254] kthread+0x28a/0x350 [ 4966.370550][ T254] ret_from_fork+0x31/0x70 [ 4966.370550][ T254] ret_from_fork_asm+0x1a/0x30 [ 4966.370550][ T254] [ 4966.372717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.372717][ T254] netdev_get_by_index+0x5e/0x80 [ 4966.372717][ T254] fib6_nh_init+0x3d8/0x1580 [ 4966.372717][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4966.372717][ T254] ip6_route_add+0x1c/0x140 [ 4966.372717][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4966.372717][ T254] inet6_addr_add+0x4f8/0xa40 [ 4966.372717][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4966.372717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4966.372717][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.372717][ T254] netlink_unicast+0x449/0x710 [ 4966.372717][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.372717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.372717][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.372717][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.372717][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.372717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4966.372717][ T254] [ 4966.375097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.375097][ T254] netdev_get_by_index+0x5e/0x80 [ 4966.375097][ T254] fib6_nh_init+0x3d8/0x1580 [ 4966.375097][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4966.375097][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4966.375097][ T254] ipv6_add_addr+0x411/0x2000 [ 4966.375097][ T254] inet6_addr_add+0x30e/0xa40 [ 4966.375097][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4966.375097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4966.375097][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.375097][ T254] netlink_unicast+0x449/0x710 [ 4966.375097][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.375097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.375097][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.375097][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.375097][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.375097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4966.375097][ T254] [ 4966.377360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.377360][ T254] netdev_get_by_index+0x5e/0x80 [ 4966.377360][ T254] fib6_nh_init+0x3d8/0x1580 [ 4966.377360][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4966.377360][ T254] ip6_route_add+0x1c/0x140 [ 4966.377360][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4966.377360][ T254] addrconf_add_dev+0xe2/0x170 [ 4966.377360][ T254] inet6_addr_add+0x12f/0xa40 [ 4966.377360][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4966.377360][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4966.377360][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.377360][ T254] netlink_unicast+0x449/0x710 [ 4966.377360][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.377360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.377360][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.377360][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.377360][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.377360][ T254] [ 4966.379576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.379576][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4966.379576][ T254] ipv6_find_idev+0x102/0x170 [ 4966.379576][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4966.379576][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4966.379576][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.379576][ T254] netlink_unicast+0x449/0x710 [ 4966.379576][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.379576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.379576][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.379576][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.379576][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.379576][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4966.379576][ T254] [ 4966.381320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4966.381320][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4966.381320][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4966.381320][ T254] ipv6_find_idev+0x102/0x170 [ 4966.381320][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4966.381320][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4966.381320][ T254] netlink_rcv_skb+0x130/0x360 [ 4966.381320][ T254] netlink_unicast+0x449/0x710 [ 4966.381320][ T254] netlink_sendmsg+0x723/0xbe0 [ 4966.381320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4966.381320][ T254] ___sys_sendmsg+0xee/0x170 [ 4966.381320][ T254] __sys_sendmsg+0xcd/0x170 [ 4966.381320][ T254] do_syscall_64+0xc6/0x1e0 [ 4966.381320][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4966.381320][ T254] [ 4976.623926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4976.624410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.624410][ T254] dst_init+0x84/0x4a0 [ 4976.624410][ T254] dst_alloc+0x97/0x150 [ 4976.624410][ T254] ip6_dst_alloc+0x23/0x90 [ 4976.624410][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4976.624410][ T254] ip6_pol_route+0x56f/0x840 [ 4976.624410][ T254] fib6_rule_lookup+0x334/0x630 [ 4976.624410][ T254] ip6_route_output_flags+0x259/0x480 [ 4976.624410][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4976.624410][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4976.624410][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.624410][ T254] netlink_unicast+0x449/0x710 [ 4976.624410][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.624410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.624410][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.624410][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.624410][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.624410][ T254] [ 4976.626624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.626624][ T254] netdev_get_by_index+0x5e/0x80 [ 4976.626624][ T254] fib6_nh_init+0x3d8/0x1580 [ 4976.626624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4976.626624][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4976.626624][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4976.626624][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4976.626624][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4976.626624][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4976.626624][ T254] addrconf_dad_begin+0x310/0x670 [ 4976.626624][ T254] addrconf_dad_work+0x10b/0xab0 [ 4976.626624][ T254] process_one_work+0x84d/0x18a0 [ 4976.626624][ T254] worker_thread+0x587/0xd30 [ 4976.626624][ T254] kthread+0x28a/0x350 [ 4976.626624][ T254] ret_from_fork+0x31/0x70 [ 4976.626624][ T254] ret_from_fork_asm+0x1a/0x30 [ 4976.626624][ T254] [ 4976.628786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.628786][ T254] netdev_get_by_index+0x5e/0x80 [ 4976.628786][ T254] fib6_nh_init+0x3d8/0x1580 [ 4976.628786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4976.628786][ T254] ip6_route_add+0x1c/0x140 [ 4976.628786][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4976.628786][ T254] inet6_addr_add+0x4f8/0xa40 [ 4976.628786][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4976.628786][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4976.628786][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.628786][ T254] netlink_unicast+0x449/0x710 [ 4976.628786][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.628786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.628786][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.628786][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.628786][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.628786][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4976.628786][ T254] [ 4976.631050][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.631050][ T254] netdev_get_by_index+0x5e/0x80 [ 4976.631050][ T254] fib6_nh_init+0x3d8/0x1580 [ 4976.631050][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4976.631050][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4976.631050][ T254] ipv6_add_addr+0x411/0x2000 [ 4976.631050][ T254] inet6_addr_add+0x30e/0xa40 [ 4976.631050][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4976.631050][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4976.631050][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.631050][ T254] netlink_unicast+0x449/0x710 [ 4976.631050][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.631050][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.631050][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.631050][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.631050][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.631050][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4976.631050][ T254] [ 4976.633432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.633432][ T254] netdev_get_by_index+0x5e/0x80 [ 4976.633432][ T254] fib6_nh_init+0x3d8/0x1580 [ 4976.633432][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4976.633432][ T254] ip6_route_add+0x1c/0x140 [ 4976.633432][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4976.633432][ T254] addrconf_add_dev+0xe2/0x170 [ 4976.633432][ T254] inet6_addr_add+0x12f/0xa40 [ 4976.633432][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4976.633432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4976.633432][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.633432][ T254] netlink_unicast+0x449/0x710 [ 4976.633432][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.633432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.633432][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.633432][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.633432][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.633432][ T254] [ 4976.635667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.635667][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4976.635667][ T254] ipv6_find_idev+0x102/0x170 [ 4976.635667][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4976.635667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4976.635667][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.635667][ T254] netlink_unicast+0x449/0x710 [ 4976.635667][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.635667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.635667][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.635667][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.635667][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.635667][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4976.635667][ T254] [ 4976.637404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4976.637404][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4976.637404][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4976.637404][ T254] ipv6_find_idev+0x102/0x170 [ 4976.637404][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4976.637404][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4976.637404][ T254] netlink_rcv_skb+0x130/0x360 [ 4976.637404][ T254] netlink_unicast+0x449/0x710 [ 4976.637404][ T254] netlink_sendmsg+0x723/0xbe0 [ 4976.637404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4976.637404][ T254] ___sys_sendmsg+0xee/0x170 [ 4976.637404][ T254] __sys_sendmsg+0xcd/0x170 [ 4976.637404][ T254] do_syscall_64+0xc6/0x1e0 [ 4976.637404][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4976.637404][ T254] [ 4986.879847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4986.880285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.880285][ T254] dst_init+0x84/0x4a0 [ 4986.880285][ T254] dst_alloc+0x97/0x150 [ 4986.880285][ T254] ip6_dst_alloc+0x23/0x90 [ 4986.880285][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4986.880285][ T254] ip6_pol_route+0x56f/0x840 [ 4986.880285][ T254] fib6_rule_lookup+0x334/0x630 [ 4986.880285][ T254] ip6_route_output_flags+0x259/0x480 [ 4986.880285][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4986.880285][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4986.880285][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.880285][ T254] netlink_unicast+0x449/0x710 [ 4986.880285][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.880285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.880285][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.880285][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.880285][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.880285][ T254] [ 4986.882500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.882500][ T254] netdev_get_by_index+0x5e/0x80 [ 4986.882500][ T254] fib6_nh_init+0x3d8/0x1580 [ 4986.882500][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4986.882500][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4986.882500][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4986.882500][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4986.882500][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4986.882500][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4986.882500][ T254] addrconf_dad_begin+0x310/0x670 [ 4986.882500][ T254] addrconf_dad_work+0x10b/0xab0 [ 4986.882500][ T254] process_one_work+0x84d/0x18a0 [ 4986.882500][ T254] worker_thread+0x587/0xd30 [ 4986.882500][ T254] kthread+0x28a/0x350 [ 4986.882500][ T254] ret_from_fork+0x31/0x70 [ 4986.882500][ T254] ret_from_fork_asm+0x1a/0x30 [ 4986.882500][ T254] [ 4986.884671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.884671][ T254] netdev_get_by_index+0x5e/0x80 [ 4986.884671][ T254] fib6_nh_init+0x3d8/0x1580 [ 4986.884671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4986.884671][ T254] ip6_route_add+0x1c/0x140 [ 4986.884671][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4986.884671][ T254] inet6_addr_add+0x4f8/0xa40 [ 4986.884671][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4986.884671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4986.884671][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.884671][ T254] netlink_unicast+0x449/0x710 [ 4986.884671][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.884671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.884671][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.884671][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.884671][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.884671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4986.884671][ T254] [ 4986.886935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.886935][ T254] netdev_get_by_index+0x5e/0x80 [ 4986.886935][ T254] fib6_nh_init+0x3d8/0x1580 [ 4986.886935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4986.886935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4986.886935][ T254] ipv6_add_addr+0x411/0x2000 [ 4986.886935][ T254] inet6_addr_add+0x30e/0xa40 [ 4986.886935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4986.886935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4986.886935][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.886935][ T254] netlink_unicast+0x449/0x710 [ 4986.886935][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.886935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.886935][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.886935][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.886935][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.886935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4986.886935][ T254] [ 4986.889190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.889190][ T254] netdev_get_by_index+0x5e/0x80 [ 4986.889190][ T254] fib6_nh_init+0x3d8/0x1580 [ 4986.889190][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4986.889190][ T254] ip6_route_add+0x1c/0x140 [ 4986.889190][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4986.889190][ T254] addrconf_add_dev+0xe2/0x170 [ 4986.889190][ T254] inet6_addr_add+0x12f/0xa40 [ 4986.889190][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4986.889190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4986.889190][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.889190][ T254] netlink_unicast+0x449/0x710 [ 4986.889190][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.889190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.889190][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.889190][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.889190][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.889190][ T254] [ 4986.891409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.891409][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4986.891409][ T254] ipv6_find_idev+0x102/0x170 [ 4986.891409][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4986.891409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4986.891409][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.891409][ T254] netlink_unicast+0x449/0x710 [ 4986.891409][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.891409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.891409][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.891409][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.891409][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.891409][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4986.891409][ T254] [ 4986.893149][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4986.893149][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4986.893149][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4986.893149][ T254] ipv6_find_idev+0x102/0x170 [ 4986.893149][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4986.893149][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4986.893149][ T254] netlink_rcv_skb+0x130/0x360 [ 4986.893149][ T254] netlink_unicast+0x449/0x710 [ 4986.893149][ T254] netlink_sendmsg+0x723/0xbe0 [ 4986.893149][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4986.893149][ T254] ___sys_sendmsg+0xee/0x170 [ 4986.893149][ T254] __sys_sendmsg+0xcd/0x170 [ 4986.893149][ T254] do_syscall_64+0xc6/0x1e0 [ 4986.893149][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4986.893149][ T254] [ 4997.135840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 4997.136320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.136320][ T254] dst_init+0x84/0x4a0 [ 4997.136320][ T254] dst_alloc+0x97/0x150 [ 4997.136320][ T254] ip6_dst_alloc+0x23/0x90 [ 4997.136320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 4997.136320][ T254] ip6_pol_route+0x56f/0x840 [ 4997.136320][ T254] fib6_rule_lookup+0x334/0x630 [ 4997.136320][ T254] ip6_route_output_flags+0x259/0x480 [ 4997.136320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 4997.136320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 4997.136320][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.136320][ T254] netlink_unicast+0x449/0x710 [ 4997.136320][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.136320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.136320][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.136320][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.136320][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.136320][ T254] [ 4997.138534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.138534][ T254] netdev_get_by_index+0x5e/0x80 [ 4997.138534][ T254] fib6_nh_init+0x3d8/0x1580 [ 4997.138534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4997.138534][ T254] addrconf_f6i_alloc+0x265/0x560 [ 4997.138534][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 4997.138534][ T254] addrconf_join_anycast+0x1c0/0x220 [ 4997.138534][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 4997.138534][ T254] addrconf_dad_completed+0x12b/0xe20 [ 4997.138534][ T254] addrconf_dad_begin+0x310/0x670 [ 4997.138534][ T254] addrconf_dad_work+0x10b/0xab0 [ 4997.138534][ T254] process_one_work+0x84d/0x18a0 [ 4997.138534][ T254] worker_thread+0x587/0xd30 [ 4997.138534][ T254] kthread+0x28a/0x350 [ 4997.138534][ T254] ret_from_fork+0x31/0x70 [ 4997.138534][ T254] ret_from_fork_asm+0x1a/0x30 [ 4997.138534][ T254] [ 4997.140712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.140712][ T254] netdev_get_by_index+0x5e/0x80 [ 4997.140712][ T254] fib6_nh_init+0x3d8/0x1580 [ 4997.140712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4997.140712][ T254] ip6_route_add+0x1c/0x140 [ 4997.140712][ T254] addrconf_prefix_route+0x2a6/0x430 [ 4997.140712][ T254] inet6_addr_add+0x4f8/0xa40 [ 4997.140712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4997.140712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4997.140712][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.140712][ T254] netlink_unicast+0x449/0x710 [ 4997.140712][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.140712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.140712][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.140712][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.140712][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.140712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4997.140712][ T254] [ 4997.142995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.142995][ T254] netdev_get_by_index+0x5e/0x80 [ 4997.142995][ T254] fib6_nh_init+0x3d8/0x1580 [ 4997.142995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4997.142995][ T254] addrconf_f6i_alloc+0x315/0x560 [ 4997.142995][ T254] ipv6_add_addr+0x411/0x2000 [ 4997.142995][ T254] inet6_addr_add+0x30e/0xa40 [ 4997.142995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4997.142995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4997.142995][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.142995][ T254] netlink_unicast+0x449/0x710 [ 4997.142995][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.142995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.142995][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.142995][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.142995][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.142995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4997.142995][ T254] [ 4997.145309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.145309][ T254] netdev_get_by_index+0x5e/0x80 [ 4997.145309][ T254] fib6_nh_init+0x3d8/0x1580 [ 4997.145309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 4997.145309][ T254] ip6_route_add+0x1c/0x140 [ 4997.145309][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 4997.145309][ T254] addrconf_add_dev+0xe2/0x170 [ 4997.145309][ T254] inet6_addr_add+0x12f/0xa40 [ 4997.145309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 4997.145309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4997.145309][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.145309][ T254] netlink_unicast+0x449/0x710 [ 4997.145309][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.145309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.145309][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.145309][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.145309][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.145309][ T254] [ 4997.147532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.147532][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 4997.147532][ T254] ipv6_find_idev+0x102/0x170 [ 4997.147532][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4997.147532][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4997.147532][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.147532][ T254] netlink_unicast+0x449/0x710 [ 4997.147532][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.147532][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.147532][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.147532][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.147532][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.147532][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4997.147532][ T254] [ 4997.149282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 4997.149282][ T254] neigh_parms_alloc+0x1e5/0x510 [ 4997.149282][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 4997.149282][ T254] ipv6_find_idev+0x102/0x170 [ 4997.149282][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 4997.149282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 4997.149282][ T254] netlink_rcv_skb+0x130/0x360 [ 4997.149282][ T254] netlink_unicast+0x449/0x710 [ 4997.149282][ T254] netlink_sendmsg+0x723/0xbe0 [ 4997.149282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 4997.149282][ T254] ___sys_sendmsg+0xee/0x170 [ 4997.149282][ T254] __sys_sendmsg+0xcd/0x170 [ 4997.149282][ T254] do_syscall_64+0xc6/0x1e0 [ 4997.149282][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 4997.149282][ T254] [ 5007.287931][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5007.288630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.288630][ T254] dst_init+0x84/0x4a0 [ 5007.288630][ T254] dst_alloc+0x97/0x150 [ 5007.288630][ T254] ip6_dst_alloc+0x23/0x90 [ 5007.288630][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5007.288630][ T254] ip6_pol_route+0x56f/0x840 [ 5007.288630][ T254] fib6_rule_lookup+0x334/0x630 [ 5007.288630][ T254] ip6_route_output_flags+0x259/0x480 [ 5007.288630][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5007.288630][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5007.288630][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.288630][ T254] netlink_unicast+0x449/0x710 [ 5007.288630][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.288630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.288630][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.288630][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.288630][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.288630][ T254] [ 5007.290852][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.290852][ T254] netdev_get_by_index+0x5e/0x80 [ 5007.290852][ T254] fib6_nh_init+0x3d8/0x1580 [ 5007.290852][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5007.290852][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5007.290852][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5007.290852][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5007.290852][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5007.290852][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5007.290852][ T254] addrconf_dad_begin+0x310/0x670 [ 5007.290852][ T254] addrconf_dad_work+0x10b/0xab0 [ 5007.290852][ T254] process_one_work+0x84d/0x18a0 [ 5007.290852][ T254] worker_thread+0x587/0xd30 [ 5007.290852][ T254] kthread+0x28a/0x350 [ 5007.290852][ T254] ret_from_fork+0x31/0x70 [ 5007.290852][ T254] ret_from_fork_asm+0x1a/0x30 [ 5007.290852][ T254] [ 5007.293025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.293025][ T254] netdev_get_by_index+0x5e/0x80 [ 5007.293025][ T254] fib6_nh_init+0x3d8/0x1580 [ 5007.293025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5007.293025][ T254] ip6_route_add+0x1c/0x140 [ 5007.293025][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5007.293025][ T254] inet6_addr_add+0x4f8/0xa40 [ 5007.293025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5007.293025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5007.293025][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.293025][ T254] netlink_unicast+0x449/0x710 [ 5007.293025][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.293025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.293025][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.293025][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.293025][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.293025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5007.293025][ T254] [ 5007.295297][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.295297][ T254] netdev_get_by_index+0x5e/0x80 [ 5007.295297][ T254] fib6_nh_init+0x3d8/0x1580 [ 5007.295297][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5007.295297][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5007.295297][ T254] ipv6_add_addr+0x411/0x2000 [ 5007.295297][ T254] inet6_addr_add+0x30e/0xa40 [ 5007.295297][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5007.295297][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5007.295297][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.295297][ T254] netlink_unicast+0x449/0x710 [ 5007.295297][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.295297][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.295297][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.295297][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.295297][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.295297][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5007.295297][ T254] [ 5007.297572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.297572][ T254] netdev_get_by_index+0x5e/0x80 [ 5007.297572][ T254] fib6_nh_init+0x3d8/0x1580 [ 5007.297572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5007.297572][ T254] ip6_route_add+0x1c/0x140 [ 5007.297572][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5007.297572][ T254] addrconf_add_dev+0xe2/0x170 [ 5007.297572][ T254] inet6_addr_add+0x12f/0xa40 [ 5007.297572][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5007.297572][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5007.297572][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.297572][ T254] netlink_unicast+0x449/0x710 [ 5007.297572][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.297572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.297572][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.297572][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.297572][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.297572][ T254] [ 5007.299797][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.299797][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5007.299797][ T254] ipv6_find_idev+0x102/0x170 [ 5007.299797][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5007.299797][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5007.299797][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.299797][ T254] netlink_unicast+0x449/0x710 [ 5007.299797][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.299797][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.299797][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.299797][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.299797][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.299797][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5007.299797][ T254] [ 5007.301630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5007.301630][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5007.301630][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5007.301630][ T254] ipv6_find_idev+0x102/0x170 [ 5007.301630][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5007.301630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5007.301630][ T254] netlink_rcv_skb+0x130/0x360 [ 5007.301630][ T254] netlink_unicast+0x449/0x710 [ 5007.301630][ T254] netlink_sendmsg+0x723/0xbe0 [ 5007.301630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5007.301630][ T254] ___sys_sendmsg+0xee/0x170 [ 5007.301630][ T254] __sys_sendmsg+0xcd/0x170 [ 5007.301630][ T254] do_syscall_64+0xc6/0x1e0 [ 5007.301630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5007.301630][ T254] [ 5017.551839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5017.552325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.552325][ T254] dst_init+0x84/0x4a0 [ 5017.552325][ T254] dst_alloc+0x97/0x150 [ 5017.552325][ T254] ip6_dst_alloc+0x23/0x90 [ 5017.552325][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5017.552325][ T254] ip6_pol_route+0x56f/0x840 [ 5017.552325][ T254] fib6_rule_lookup+0x334/0x630 [ 5017.552325][ T254] ip6_route_output_flags+0x259/0x480 [ 5017.552325][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5017.552325][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5017.552325][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.552325][ T254] netlink_unicast+0x449/0x710 [ 5017.552325][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.552325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.552325][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.552325][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.552325][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.552325][ T254] [ 5017.554552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.554552][ T254] netdev_get_by_index+0x5e/0x80 [ 5017.554552][ T254] fib6_nh_init+0x3d8/0x1580 [ 5017.554552][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5017.554552][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5017.554552][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5017.554552][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5017.554552][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5017.554552][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5017.554552][ T254] addrconf_dad_begin+0x310/0x670 [ 5017.554552][ T254] addrconf_dad_work+0x10b/0xab0 [ 5017.554552][ T254] process_one_work+0x84d/0x18a0 [ 5017.554552][ T254] worker_thread+0x587/0xd30 [ 5017.554552][ T254] kthread+0x28a/0x350 [ 5017.554552][ T254] ret_from_fork+0x31/0x70 [ 5017.554552][ T254] ret_from_fork_asm+0x1a/0x30 [ 5017.554552][ T254] [ 5017.556722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.556722][ T254] netdev_get_by_index+0x5e/0x80 [ 5017.556722][ T254] fib6_nh_init+0x3d8/0x1580 [ 5017.556722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5017.556722][ T254] ip6_route_add+0x1c/0x140 [ 5017.556722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5017.556722][ T254] inet6_addr_add+0x4f8/0xa40 [ 5017.556722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5017.556722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5017.556722][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.556722][ T254] netlink_unicast+0x449/0x710 [ 5017.556722][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.556722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.556722][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.556722][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.556722][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.556722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5017.556722][ T254] [ 5017.558981][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.558981][ T254] netdev_get_by_index+0x5e/0x80 [ 5017.558981][ T254] fib6_nh_init+0x3d8/0x1580 [ 5017.558981][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5017.558981][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5017.558981][ T254] ipv6_add_addr+0x411/0x2000 [ 5017.558981][ T254] inet6_addr_add+0x30e/0xa40 [ 5017.558981][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5017.558981][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5017.558981][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.558981][ T254] netlink_unicast+0x449/0x710 [ 5017.558981][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.558981][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.558981][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.558981][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.558981][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.558981][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5017.558981][ T254] [ 5017.561236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.561236][ T254] netdev_get_by_index+0x5e/0x80 [ 5017.561236][ T254] fib6_nh_init+0x3d8/0x1580 [ 5017.561236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5017.561236][ T254] ip6_route_add+0x1c/0x140 [ 5017.561236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5017.561236][ T254] addrconf_add_dev+0xe2/0x170 [ 5017.561236][ T254] inet6_addr_add+0x12f/0xa40 [ 5017.561236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5017.561236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5017.561236][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.561236][ T254] netlink_unicast+0x449/0x710 [ 5017.561236][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.561236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.561236][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.561236][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.561236][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.561236][ T254] [ 5017.563448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.563448][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5017.563448][ T254] ipv6_find_idev+0x102/0x170 [ 5017.563448][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5017.563448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5017.563448][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.563448][ T254] netlink_unicast+0x449/0x710 [ 5017.563448][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.563448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.563448][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.563448][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.563448][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.563448][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5017.563448][ T254] [ 5017.565192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5017.565192][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5017.565192][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5017.565192][ T254] ipv6_find_idev+0x102/0x170 [ 5017.565192][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5017.565192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5017.565192][ T254] netlink_rcv_skb+0x130/0x360 [ 5017.565192][ T254] netlink_unicast+0x449/0x710 [ 5017.565192][ T254] netlink_sendmsg+0x723/0xbe0 [ 5017.565192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5017.565192][ T254] ___sys_sendmsg+0xee/0x170 [ 5017.565192][ T254] __sys_sendmsg+0xcd/0x170 [ 5017.565192][ T254] do_syscall_64+0xc6/0x1e0 [ 5017.565192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5017.565192][ T254] [ 5027.839912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5027.840384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.840384][ T254] dst_init+0x84/0x4a0 [ 5027.840384][ T254] dst_alloc+0x97/0x150 [ 5027.840384][ T254] ip6_dst_alloc+0x23/0x90 [ 5027.840384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5027.840384][ T254] ip6_pol_route+0x56f/0x840 [ 5027.840384][ T254] fib6_rule_lookup+0x334/0x630 [ 5027.840384][ T254] ip6_route_output_flags+0x259/0x480 [ 5027.840384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5027.840384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5027.840384][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.840384][ T254] netlink_unicast+0x449/0x710 [ 5027.840384][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.840384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.840384][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.840384][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.840384][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.840384][ T254] [ 5027.842613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.842613][ T254] netdev_get_by_index+0x5e/0x80 [ 5027.842613][ T254] fib6_nh_init+0x3d8/0x1580 [ 5027.842613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5027.842613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5027.842613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5027.842613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5027.842613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5027.842613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5027.842613][ T254] addrconf_dad_begin+0x310/0x670 [ 5027.842613][ T254] addrconf_dad_work+0x10b/0xab0 [ 5027.842613][ T254] process_one_work+0x84d/0x18a0 [ 5027.842613][ T254] worker_thread+0x587/0xd30 [ 5027.842613][ T254] kthread+0x28a/0x350 [ 5027.842613][ T254] ret_from_fork+0x31/0x70 [ 5027.842613][ T254] ret_from_fork_asm+0x1a/0x30 [ 5027.842613][ T254] [ 5027.844765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.844765][ T254] netdev_get_by_index+0x5e/0x80 [ 5027.844765][ T254] fib6_nh_init+0x3d8/0x1580 [ 5027.844765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5027.844765][ T254] ip6_route_add+0x1c/0x140 [ 5027.844765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5027.844765][ T254] inet6_addr_add+0x4f8/0xa40 [ 5027.844765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5027.844765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5027.844765][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.844765][ T254] netlink_unicast+0x449/0x710 [ 5027.844765][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.844765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.844765][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.844765][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.844765][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.844765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5027.844765][ T254] [ 5027.847027][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.847027][ T254] netdev_get_by_index+0x5e/0x80 [ 5027.847027][ T254] fib6_nh_init+0x3d8/0x1580 [ 5027.847027][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5027.847027][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5027.847027][ T254] ipv6_add_addr+0x411/0x2000 [ 5027.847027][ T254] inet6_addr_add+0x30e/0xa40 [ 5027.847027][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5027.847027][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5027.847027][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.847027][ T254] netlink_unicast+0x449/0x710 [ 5027.847027][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.847027][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.847027][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.847027][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.847027][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.847027][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5027.847027][ T254] [ 5027.849262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.849262][ T254] netdev_get_by_index+0x5e/0x80 [ 5027.849262][ T254] fib6_nh_init+0x3d8/0x1580 [ 5027.849262][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5027.849262][ T254] ip6_route_add+0x1c/0x140 [ 5027.849262][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5027.849262][ T254] addrconf_add_dev+0xe2/0x170 [ 5027.849262][ T254] inet6_addr_add+0x12f/0xa40 [ 5027.849262][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5027.849262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5027.849262][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.849262][ T254] netlink_unicast+0x449/0x710 [ 5027.849262][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.849262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.849262][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.849262][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.849262][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.849262][ T254] [ 5027.851484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.851484][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5027.851484][ T254] ipv6_find_idev+0x102/0x170 [ 5027.851484][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5027.851484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5027.851484][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.851484][ T254] netlink_unicast+0x449/0x710 [ 5027.851484][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.851484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.851484][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.851484][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.851484][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.851484][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5027.851484][ T254] [ 5027.853200][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5027.853200][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5027.853200][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5027.853200][ T254] ipv6_find_idev+0x102/0x170 [ 5027.853200][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5027.853200][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5027.853200][ T254] netlink_rcv_skb+0x130/0x360 [ 5027.853200][ T254] netlink_unicast+0x449/0x710 [ 5027.853200][ T254] netlink_sendmsg+0x723/0xbe0 [ 5027.853200][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5027.853200][ T254] ___sys_sendmsg+0xee/0x170 [ 5027.853200][ T254] __sys_sendmsg+0xcd/0x170 [ 5027.853200][ T254] do_syscall_64+0xc6/0x1e0 [ 5027.853200][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5027.853200][ T254] [ 5037.935807][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5037.936447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.936447][ T254] dst_init+0x84/0x4a0 [ 5037.936447][ T254] dst_alloc+0x97/0x150 [ 5037.936447][ T254] ip6_dst_alloc+0x23/0x90 [ 5037.936447][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5037.936447][ T254] ip6_pol_route+0x56f/0x840 [ 5037.936447][ T254] fib6_rule_lookup+0x334/0x630 [ 5037.936447][ T254] ip6_route_output_flags+0x259/0x480 [ 5037.936447][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5037.936447][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5037.936447][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.936447][ T254] netlink_unicast+0x449/0x710 [ 5037.936447][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.936447][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.936447][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.936447][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.936447][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.936447][ T254] [ 5037.939830][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.939830][ T254] netdev_get_by_index+0x5e/0x80 [ 5037.939830][ T254] fib6_nh_init+0x3d8/0x1580 [ 5037.939830][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5037.939830][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5037.939830][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5037.939830][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5037.939830][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5037.939830][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5037.939830][ T254] addrconf_dad_begin+0x310/0x670 [ 5037.939830][ T254] addrconf_dad_work+0x10b/0xab0 [ 5037.939830][ T254] process_one_work+0x84d/0x18a0 [ 5037.939830][ T254] worker_thread+0x587/0xd30 [ 5037.939830][ T254] kthread+0x28a/0x350 [ 5037.939830][ T254] ret_from_fork+0x31/0x70 [ 5037.939830][ T254] ret_from_fork_asm+0x1a/0x30 [ 5037.939830][ T254] [ 5037.943065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.943065][ T254] netdev_get_by_index+0x5e/0x80 [ 5037.943065][ T254] fib6_nh_init+0x3d8/0x1580 [ 5037.943065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5037.943065][ T254] ip6_route_add+0x1c/0x140 [ 5037.943065][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5037.943065][ T254] inet6_addr_add+0x4f8/0xa40 [ 5037.943065][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5037.943065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5037.943065][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.943065][ T254] netlink_unicast+0x449/0x710 [ 5037.943065][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.943065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.943065][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.943065][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.943065][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.943065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5037.943065][ T254] [ 5037.946538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.946538][ T254] netdev_get_by_index+0x5e/0x80 [ 5037.946538][ T254] fib6_nh_init+0x3d8/0x1580 [ 5037.946538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5037.946538][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5037.946538][ T254] ipv6_add_addr+0x411/0x2000 [ 5037.946538][ T254] inet6_addr_add+0x30e/0xa40 [ 5037.946538][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5037.946538][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5037.946538][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.946538][ T254] netlink_unicast+0x449/0x710 [ 5037.946538][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.946538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.946538][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.946538][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.946538][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.946538][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5037.946538][ T254] [ 5037.950097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.950097][ T254] netdev_get_by_index+0x5e/0x80 [ 5037.950097][ T254] fib6_nh_init+0x3d8/0x1580 [ 5037.950097][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5037.950097][ T254] ip6_route_add+0x1c/0x140 [ 5037.950097][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5037.950097][ T254] addrconf_add_dev+0xe2/0x170 [ 5037.950097][ T254] inet6_addr_add+0x12f/0xa40 [ 5037.950097][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5037.950097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5037.950097][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.950097][ T254] netlink_unicast+0x449/0x710 [ 5037.950097][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.950097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.950097][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.950097][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.950097][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.950097][ T254] [ 5037.953549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.953549][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5037.953549][ T254] ipv6_find_idev+0x102/0x170 [ 5037.953549][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5037.953549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5037.953549][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.953549][ T254] netlink_unicast+0x449/0x710 [ 5037.953549][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.953549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.953549][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.953549][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.953549][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.953549][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5037.953549][ T254] [ 5037.956131][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5037.956131][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5037.956131][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5037.956131][ T254] ipv6_find_idev+0x102/0x170 [ 5037.956131][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5037.956131][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5037.956131][ T254] netlink_rcv_skb+0x130/0x360 [ 5037.956131][ T254] netlink_unicast+0x449/0x710 [ 5037.956131][ T254] netlink_sendmsg+0x723/0xbe0 [ 5037.956131][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5037.956131][ T254] ___sys_sendmsg+0xee/0x170 [ 5037.956131][ T254] __sys_sendmsg+0xcd/0x170 [ 5037.956131][ T254] do_syscall_64+0xc6/0x1e0 [ 5037.956131][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5037.956131][ T254] [ 5048.023849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5048.024338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.024338][ T254] dst_init+0x84/0x4a0 [ 5048.024338][ T254] dst_alloc+0x97/0x150 [ 5048.024338][ T254] ip6_dst_alloc+0x23/0x90 [ 5048.024338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5048.024338][ T254] ip6_pol_route+0x56f/0x840 [ 5048.024338][ T254] fib6_rule_lookup+0x334/0x630 [ 5048.024338][ T254] ip6_route_output_flags+0x259/0x480 [ 5048.024338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5048.024338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5048.024338][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.024338][ T254] netlink_unicast+0x449/0x710 [ 5048.024338][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.024338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.024338][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.024338][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.024338][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.024338][ T254] [ 5048.026527][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.026527][ T254] netdev_get_by_index+0x5e/0x80 [ 5048.026527][ T254] fib6_nh_init+0x3d8/0x1580 [ 5048.026527][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5048.026527][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5048.026527][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5048.026527][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5048.026527][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5048.026527][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5048.026527][ T254] addrconf_dad_begin+0x310/0x670 [ 5048.026527][ T254] addrconf_dad_work+0x10b/0xab0 [ 5048.026527][ T254] process_one_work+0x84d/0x18a0 [ 5048.026527][ T254] worker_thread+0x587/0xd30 [ 5048.026527][ T254] kthread+0x28a/0x350 [ 5048.026527][ T254] ret_from_fork+0x31/0x70 [ 5048.026527][ T254] ret_from_fork_asm+0x1a/0x30 [ 5048.026527][ T254] [ 5048.028662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.028662][ T254] netdev_get_by_index+0x5e/0x80 [ 5048.028662][ T254] fib6_nh_init+0x3d8/0x1580 [ 5048.028662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5048.028662][ T254] ip6_route_add+0x1c/0x140 [ 5048.028662][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5048.028662][ T254] inet6_addr_add+0x4f8/0xa40 [ 5048.028662][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5048.028662][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5048.028662][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.028662][ T254] netlink_unicast+0x449/0x710 [ 5048.028662][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.028662][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.028662][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.028662][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.028662][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.028662][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5048.028662][ T254] [ 5048.030903][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.030903][ T254] netdev_get_by_index+0x5e/0x80 [ 5048.030903][ T254] fib6_nh_init+0x3d8/0x1580 [ 5048.030903][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5048.030903][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5048.030903][ T254] ipv6_add_addr+0x411/0x2000 [ 5048.030903][ T254] inet6_addr_add+0x30e/0xa40 [ 5048.030903][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5048.030903][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5048.030903][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.030903][ T254] netlink_unicast+0x449/0x710 [ 5048.030903][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.030903][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.030903][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.030903][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.030903][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.030903][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5048.030903][ T254] [ 5048.033134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.033134][ T254] netdev_get_by_index+0x5e/0x80 [ 5048.033134][ T254] fib6_nh_init+0x3d8/0x1580 [ 5048.033134][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5048.033134][ T254] ip6_route_add+0x1c/0x140 [ 5048.033134][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5048.033134][ T254] addrconf_add_dev+0xe2/0x170 [ 5048.033134][ T254] inet6_addr_add+0x12f/0xa40 [ 5048.033134][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5048.033134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5048.033134][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.033134][ T254] netlink_unicast+0x449/0x710 [ 5048.033134][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.033134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.033134][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.033134][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.033134][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.033134][ T254] [ 5048.035366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.035366][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5048.035366][ T254] ipv6_find_idev+0x102/0x170 [ 5048.035366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5048.035366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5048.035366][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.035366][ T254] netlink_unicast+0x449/0x710 [ 5048.035366][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.035366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.035366][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.035366][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.035366][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.035366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5048.035366][ T254] [ 5048.037083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5048.037083][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5048.037083][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5048.037083][ T254] ipv6_find_idev+0x102/0x170 [ 5048.037083][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5048.037083][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5048.037083][ T254] netlink_rcv_skb+0x130/0x360 [ 5048.037083][ T254] netlink_unicast+0x449/0x710 [ 5048.037083][ T254] netlink_sendmsg+0x723/0xbe0 [ 5048.037083][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5048.037083][ T254] ___sys_sendmsg+0xee/0x170 [ 5048.037083][ T254] __sys_sendmsg+0xcd/0x170 [ 5048.037083][ T254] do_syscall_64+0xc6/0x1e0 [ 5048.037083][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5048.037083][ T254] [ 5058.279949][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5058.280611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.280611][ T254] dst_init+0x84/0x4a0 [ 5058.280611][ T254] dst_alloc+0x97/0x150 [ 5058.280611][ T254] ip6_dst_alloc+0x23/0x90 [ 5058.280611][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5058.280611][ T254] ip6_pol_route+0x56f/0x840 [ 5058.280611][ T254] fib6_rule_lookup+0x334/0x630 [ 5058.280611][ T254] ip6_route_output_flags+0x259/0x480 [ 5058.280611][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5058.280611][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5058.280611][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.280611][ T254] netlink_unicast+0x449/0x710 [ 5058.280611][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.280611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.280611][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.280611][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.280611][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.280611][ T254] [ 5058.282847][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.282847][ T254] netdev_get_by_index+0x5e/0x80 [ 5058.282847][ T254] fib6_nh_init+0x3d8/0x1580 [ 5058.282847][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5058.282847][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5058.282847][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5058.282847][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5058.282847][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5058.282847][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5058.282847][ T254] addrconf_dad_begin+0x310/0x670 [ 5058.282847][ T254] addrconf_dad_work+0x10b/0xab0 [ 5058.282847][ T254] process_one_work+0x84d/0x18a0 [ 5058.282847][ T254] worker_thread+0x587/0xd30 [ 5058.282847][ T254] kthread+0x28a/0x350 [ 5058.282847][ T254] ret_from_fork+0x31/0x70 [ 5058.282847][ T254] ret_from_fork_asm+0x1a/0x30 [ 5058.282847][ T254] [ 5058.285023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.285023][ T254] netdev_get_by_index+0x5e/0x80 [ 5058.285023][ T254] fib6_nh_init+0x3d8/0x1580 [ 5058.285023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5058.285023][ T254] ip6_route_add+0x1c/0x140 [ 5058.285023][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5058.285023][ T254] inet6_addr_add+0x4f8/0xa40 [ 5058.285023][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5058.285023][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5058.285023][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.285023][ T254] netlink_unicast+0x449/0x710 [ 5058.285023][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.285023][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.285023][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.285023][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.285023][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.285023][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5058.285023][ T254] [ 5058.287315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.287315][ T254] netdev_get_by_index+0x5e/0x80 [ 5058.287315][ T254] fib6_nh_init+0x3d8/0x1580 [ 5058.287315][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5058.287315][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5058.287315][ T254] ipv6_add_addr+0x411/0x2000 [ 5058.287315][ T254] inet6_addr_add+0x30e/0xa40 [ 5058.287315][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5058.287315][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5058.287315][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.287315][ T254] netlink_unicast+0x449/0x710 [ 5058.287315][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.287315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.287315][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.287315][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.287315][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.287315][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5058.287315][ T254] [ 5058.289589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.289589][ T254] netdev_get_by_index+0x5e/0x80 [ 5058.289589][ T254] fib6_nh_init+0x3d8/0x1580 [ 5058.289589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5058.289589][ T254] ip6_route_add+0x1c/0x140 [ 5058.289589][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5058.289589][ T254] addrconf_add_dev+0xe2/0x170 [ 5058.289589][ T254] inet6_addr_add+0x12f/0xa40 [ 5058.289589][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5058.289589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5058.289589][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.289589][ T254] netlink_unicast+0x449/0x710 [ 5058.289589][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.289589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.289589][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.289589][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.289589][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.289589][ T254] [ 5058.291817][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.291817][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5058.291817][ T254] ipv6_find_idev+0x102/0x170 [ 5058.291817][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5058.291817][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5058.291817][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.291817][ T254] netlink_unicast+0x449/0x710 [ 5058.291817][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.291817][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.291817][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.291817][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.291817][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.291817][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5058.291817][ T254] [ 5058.293551][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5058.293551][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5058.293551][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5058.293551][ T254] ipv6_find_idev+0x102/0x170 [ 5058.293551][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5058.293551][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5058.293551][ T254] netlink_rcv_skb+0x130/0x360 [ 5058.293551][ T254] netlink_unicast+0x449/0x710 [ 5058.293551][ T254] netlink_sendmsg+0x723/0xbe0 [ 5058.293551][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5058.293551][ T254] ___sys_sendmsg+0xee/0x170 [ 5058.293551][ T254] __sys_sendmsg+0xcd/0x170 [ 5058.293551][ T254] do_syscall_64+0xc6/0x1e0 [ 5058.293551][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5058.293551][ T254] [ 5068.535903][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5068.536647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.536647][ T254] dst_init+0x84/0x4a0 [ 5068.536647][ T254] dst_alloc+0x97/0x150 [ 5068.536647][ T254] ip6_dst_alloc+0x23/0x90 [ 5068.536647][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5068.536647][ T254] ip6_pol_route+0x56f/0x840 [ 5068.536647][ T254] fib6_rule_lookup+0x334/0x630 [ 5068.536647][ T254] ip6_route_output_flags+0x259/0x480 [ 5068.536647][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5068.536647][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5068.536647][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.536647][ T254] netlink_unicast+0x449/0x710 [ 5068.536647][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.536647][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.536647][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.536647][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.536647][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.536647][ T254] [ 5068.538884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.538884][ T254] netdev_get_by_index+0x5e/0x80 [ 5068.538884][ T254] fib6_nh_init+0x3d8/0x1580 [ 5068.538884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5068.538884][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5068.538884][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5068.538884][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5068.538884][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5068.538884][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5068.538884][ T254] addrconf_dad_begin+0x310/0x670 [ 5068.538884][ T254] addrconf_dad_work+0x10b/0xab0 [ 5068.538884][ T254] process_one_work+0x84d/0x18a0 [ 5068.538884][ T254] worker_thread+0x587/0xd30 [ 5068.538884][ T254] kthread+0x28a/0x350 [ 5068.538884][ T254] ret_from_fork+0x31/0x70 [ 5068.538884][ T254] ret_from_fork_asm+0x1a/0x30 [ 5068.538884][ T254] [ 5068.541089][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.541089][ T254] netdev_get_by_index+0x5e/0x80 [ 5068.541089][ T254] fib6_nh_init+0x3d8/0x1580 [ 5068.541089][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5068.541089][ T254] ip6_route_add+0x1c/0x140 [ 5068.541089][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5068.541089][ T254] inet6_addr_add+0x4f8/0xa40 [ 5068.541089][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5068.541089][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5068.541089][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.541089][ T254] netlink_unicast+0x449/0x710 [ 5068.541089][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.541089][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.541089][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.541089][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.541089][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.541089][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5068.541089][ T254] [ 5068.543397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.543397][ T254] netdev_get_by_index+0x5e/0x80 [ 5068.543397][ T254] fib6_nh_init+0x3d8/0x1580 [ 5068.543397][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5068.543397][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5068.543397][ T254] ipv6_add_addr+0x411/0x2000 [ 5068.543397][ T254] inet6_addr_add+0x30e/0xa40 [ 5068.543397][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5068.543397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5068.543397][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.543397][ T254] netlink_unicast+0x449/0x710 [ 5068.543397][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.543397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.543397][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.543397][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.543397][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.543397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5068.543397][ T254] [ 5068.545790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.545790][ T254] netdev_get_by_index+0x5e/0x80 [ 5068.545790][ T254] fib6_nh_init+0x3d8/0x1580 [ 5068.545790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5068.545790][ T254] ip6_route_add+0x1c/0x140 [ 5068.545790][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5068.545790][ T254] addrconf_add_dev+0xe2/0x170 [ 5068.545790][ T254] inet6_addr_add+0x12f/0xa40 [ 5068.545790][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5068.545790][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5068.545790][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.545790][ T254] netlink_unicast+0x449/0x710 [ 5068.545790][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.545790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.545790][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.545790][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.545790][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.545790][ T254] [ 5068.548016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.548016][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5068.548016][ T254] ipv6_find_idev+0x102/0x170 [ 5068.548016][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5068.548016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5068.548016][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.548016][ T254] netlink_unicast+0x449/0x710 [ 5068.548016][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.548016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.548016][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.548016][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.548016][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.548016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5068.548016][ T254] [ 5068.549740][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5068.549740][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5068.549740][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5068.549740][ T254] ipv6_find_idev+0x102/0x170 [ 5068.549740][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5068.549740][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5068.549740][ T254] netlink_rcv_skb+0x130/0x360 [ 5068.549740][ T254] netlink_unicast+0x449/0x710 [ 5068.549740][ T254] netlink_sendmsg+0x723/0xbe0 [ 5068.549740][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5068.549740][ T254] ___sys_sendmsg+0xee/0x170 [ 5068.549740][ T254] __sys_sendmsg+0xcd/0x170 [ 5068.549740][ T254] do_syscall_64+0xc6/0x1e0 [ 5068.549740][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5068.549740][ T254] [ 5078.791859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5078.792572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.792572][ T254] dst_init+0x84/0x4a0 [ 5078.792572][ T254] dst_alloc+0x97/0x150 [ 5078.792572][ T254] ip6_dst_alloc+0x23/0x90 [ 5078.792572][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5078.792572][ T254] ip6_pol_route+0x56f/0x840 [ 5078.792572][ T254] fib6_rule_lookup+0x334/0x630 [ 5078.792572][ T254] ip6_route_output_flags+0x259/0x480 [ 5078.792572][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5078.792572][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5078.792572][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.792572][ T254] netlink_unicast+0x449/0x710 [ 5078.792572][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.792572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.792572][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.792572][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.792572][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.792572][ T254] [ 5078.794818][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.794818][ T254] netdev_get_by_index+0x5e/0x80 [ 5078.794818][ T254] fib6_nh_init+0x3d8/0x1580 [ 5078.794818][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5078.794818][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5078.794818][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5078.794818][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5078.794818][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5078.794818][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5078.794818][ T254] addrconf_dad_begin+0x310/0x670 [ 5078.794818][ T254] addrconf_dad_work+0x10b/0xab0 [ 5078.794818][ T254] process_one_work+0x84d/0x18a0 [ 5078.794818][ T254] worker_thread+0x587/0xd30 [ 5078.794818][ T254] kthread+0x28a/0x350 [ 5078.794818][ T254] ret_from_fork+0x31/0x70 [ 5078.794818][ T254] ret_from_fork_asm+0x1a/0x30 [ 5078.794818][ T254] [ 5078.797005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.797005][ T254] netdev_get_by_index+0x5e/0x80 [ 5078.797005][ T254] fib6_nh_init+0x3d8/0x1580 [ 5078.797005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5078.797005][ T254] ip6_route_add+0x1c/0x140 [ 5078.797005][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5078.797005][ T254] inet6_addr_add+0x4f8/0xa40 [ 5078.797005][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5078.797005][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5078.797005][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.797005][ T254] netlink_unicast+0x449/0x710 [ 5078.797005][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.797005][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.797005][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.797005][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.797005][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.797005][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5078.797005][ T254] [ 5078.799294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.799294][ T254] netdev_get_by_index+0x5e/0x80 [ 5078.799294][ T254] fib6_nh_init+0x3d8/0x1580 [ 5078.799294][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5078.799294][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5078.799294][ T254] ipv6_add_addr+0x411/0x2000 [ 5078.799294][ T254] inet6_addr_add+0x30e/0xa40 [ 5078.799294][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5078.799294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5078.799294][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.799294][ T254] netlink_unicast+0x449/0x710 [ 5078.799294][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.799294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.799294][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.799294][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.799294][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.799294][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5078.799294][ T254] [ 5078.801534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.801534][ T254] netdev_get_by_index+0x5e/0x80 [ 5078.801534][ T254] fib6_nh_init+0x3d8/0x1580 [ 5078.801534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5078.801534][ T254] ip6_route_add+0x1c/0x140 [ 5078.801534][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5078.801534][ T254] addrconf_add_dev+0xe2/0x170 [ 5078.801534][ T254] inet6_addr_add+0x12f/0xa40 [ 5078.801534][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5078.801534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5078.801534][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.801534][ T254] netlink_unicast+0x449/0x710 [ 5078.801534][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.801534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.801534][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.801534][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.801534][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.801534][ T254] [ 5078.803739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.803739][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5078.803739][ T254] ipv6_find_idev+0x102/0x170 [ 5078.803739][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5078.803739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5078.803739][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.803739][ T254] netlink_unicast+0x449/0x710 [ 5078.803739][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.803739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.803739][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.803739][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.803739][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.803739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5078.803739][ T254] [ 5078.805470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5078.805470][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5078.805470][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5078.805470][ T254] ipv6_find_idev+0x102/0x170 [ 5078.805470][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5078.805470][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5078.805470][ T254] netlink_rcv_skb+0x130/0x360 [ 5078.805470][ T254] netlink_unicast+0x449/0x710 [ 5078.805470][ T254] netlink_sendmsg+0x723/0xbe0 [ 5078.805470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5078.805470][ T254] ___sys_sendmsg+0xee/0x170 [ 5078.805470][ T254] __sys_sendmsg+0xcd/0x170 [ 5078.805470][ T254] do_syscall_64+0xc6/0x1e0 [ 5078.805470][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5078.805470][ T254] [ 5088.879853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5088.880516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.880516][ T254] dst_init+0x84/0x4a0 [ 5088.880516][ T254] dst_alloc+0x97/0x150 [ 5088.880516][ T254] ip6_dst_alloc+0x23/0x90 [ 5088.880516][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5088.880516][ T254] ip6_pol_route+0x56f/0x840 [ 5088.880516][ T254] fib6_rule_lookup+0x334/0x630 [ 5088.880516][ T254] ip6_route_output_flags+0x259/0x480 [ 5088.880516][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5088.880516][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5088.880516][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.880516][ T254] netlink_unicast+0x449/0x710 [ 5088.880516][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.880516][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.880516][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.880516][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.880516][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.880516][ T254] [ 5088.882708][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.882708][ T254] netdev_get_by_index+0x5e/0x80 [ 5088.882708][ T254] fib6_nh_init+0x3d8/0x1580 [ 5088.882708][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5088.882708][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5088.882708][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5088.882708][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5088.882708][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5088.882708][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5088.882708][ T254] addrconf_dad_begin+0x310/0x670 [ 5088.882708][ T254] addrconf_dad_work+0x10b/0xab0 [ 5088.882708][ T254] process_one_work+0x84d/0x18a0 [ 5088.882708][ T254] worker_thread+0x587/0xd30 [ 5088.882708][ T254] kthread+0x28a/0x350 [ 5088.882708][ T254] ret_from_fork+0x31/0x70 [ 5088.882708][ T254] ret_from_fork_asm+0x1a/0x30 [ 5088.882708][ T254] [ 5088.884854][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.884854][ T254] netdev_get_by_index+0x5e/0x80 [ 5088.884854][ T254] fib6_nh_init+0x3d8/0x1580 [ 5088.884854][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5088.884854][ T254] ip6_route_add+0x1c/0x140 [ 5088.884854][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5088.884854][ T254] inet6_addr_add+0x4f8/0xa40 [ 5088.884854][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5088.884854][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5088.884854][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.884854][ T254] netlink_unicast+0x449/0x710 [ 5088.884854][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.884854][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.884854][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.884854][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.884854][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.884854][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5088.884854][ T254] [ 5088.887096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.887096][ T254] netdev_get_by_index+0x5e/0x80 [ 5088.887096][ T254] fib6_nh_init+0x3d8/0x1580 [ 5088.887096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5088.887096][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5088.887096][ T254] ipv6_add_addr+0x411/0x2000 [ 5088.887096][ T254] inet6_addr_add+0x30e/0xa40 [ 5088.887096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5088.887096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5088.887096][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.887096][ T254] netlink_unicast+0x449/0x710 [ 5088.887096][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.887096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.887096][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.887096][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.887096][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.887096][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5088.887096][ T254] [ 5088.889318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.889318][ T254] netdev_get_by_index+0x5e/0x80 [ 5088.889318][ T254] fib6_nh_init+0x3d8/0x1580 [ 5088.889318][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5088.889318][ T254] ip6_route_add+0x1c/0x140 [ 5088.889318][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5088.889318][ T254] addrconf_add_dev+0xe2/0x170 [ 5088.889318][ T254] inet6_addr_add+0x12f/0xa40 [ 5088.889318][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5088.889318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5088.889318][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.889318][ T254] netlink_unicast+0x449/0x710 [ 5088.889318][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.889318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.889318][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.889318][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.889318][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.889318][ T254] [ 5088.891508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.891508][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5088.891508][ T254] ipv6_find_idev+0x102/0x170 [ 5088.891508][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5088.891508][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5088.891508][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.891508][ T254] netlink_unicast+0x449/0x710 [ 5088.891508][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.891508][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.891508][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.891508][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.891508][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.891508][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5088.891508][ T254] [ 5088.893227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5088.893227][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5088.893227][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5088.893227][ T254] ipv6_find_idev+0x102/0x170 [ 5088.893227][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5088.893227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5088.893227][ T254] netlink_rcv_skb+0x130/0x360 [ 5088.893227][ T254] netlink_unicast+0x449/0x710 [ 5088.893227][ T254] netlink_sendmsg+0x723/0xbe0 [ 5088.893227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5088.893227][ T254] ___sys_sendmsg+0xee/0x170 [ 5088.893227][ T254] __sys_sendmsg+0xcd/0x170 [ 5088.893227][ T254] do_syscall_64+0xc6/0x1e0 [ 5088.893227][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5088.893227][ T254] [ 5099.135917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5099.136698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.136698][ T254] dst_init+0x84/0x4a0 [ 5099.136698][ T254] dst_alloc+0x97/0x150 [ 5099.136698][ T254] ip6_dst_alloc+0x23/0x90 [ 5099.136698][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5099.136698][ T254] ip6_pol_route+0x56f/0x840 [ 5099.136698][ T254] fib6_rule_lookup+0x334/0x630 [ 5099.136698][ T254] ip6_route_output_flags+0x259/0x480 [ 5099.136698][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5099.136698][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5099.136698][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.136698][ T254] netlink_unicast+0x449/0x710 [ 5099.136698][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.136698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.136698][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.136698][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.136698][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.136698][ T254] [ 5099.138893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.138893][ T254] netdev_get_by_index+0x5e/0x80 [ 5099.138893][ T254] fib6_nh_init+0x3d8/0x1580 [ 5099.138893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5099.138893][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5099.138893][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5099.138893][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5099.138893][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5099.138893][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5099.138893][ T254] addrconf_dad_begin+0x310/0x670 [ 5099.138893][ T254] addrconf_dad_work+0x10b/0xab0 [ 5099.138893][ T254] process_one_work+0x84d/0x18a0 [ 5099.138893][ T254] worker_thread+0x587/0xd30 [ 5099.138893][ T254] kthread+0x28a/0x350 [ 5099.138893][ T254] ret_from_fork+0x31/0x70 [ 5099.138893][ T254] ret_from_fork_asm+0x1a/0x30 [ 5099.138893][ T254] [ 5099.141065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.141065][ T254] netdev_get_by_index+0x5e/0x80 [ 5099.141065][ T254] fib6_nh_init+0x3d8/0x1580 [ 5099.141065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5099.141065][ T254] ip6_route_add+0x1c/0x140 [ 5099.141065][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5099.141065][ T254] inet6_addr_add+0x4f8/0xa40 [ 5099.141065][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5099.141065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5099.141065][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.141065][ T254] netlink_unicast+0x449/0x710 [ 5099.141065][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.141065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.141065][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.141065][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.141065][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.141065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5099.141065][ T254] [ 5099.143329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.143329][ T254] netdev_get_by_index+0x5e/0x80 [ 5099.143329][ T254] fib6_nh_init+0x3d8/0x1580 [ 5099.143329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5099.143329][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5099.143329][ T254] ipv6_add_addr+0x411/0x2000 [ 5099.143329][ T254] inet6_addr_add+0x30e/0xa40 [ 5099.143329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5099.143329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5099.143329][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.143329][ T254] netlink_unicast+0x449/0x710 [ 5099.143329][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.143329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.143329][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.143329][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.143329][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.143329][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5099.143329][ T254] [ 5099.145574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.145574][ T254] netdev_get_by_index+0x5e/0x80 [ 5099.145574][ T254] fib6_nh_init+0x3d8/0x1580 [ 5099.145574][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5099.145574][ T254] ip6_route_add+0x1c/0x140 [ 5099.145574][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5099.145574][ T254] addrconf_add_dev+0xe2/0x170 [ 5099.145574][ T254] inet6_addr_add+0x12f/0xa40 [ 5099.145574][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5099.145574][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5099.145574][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.145574][ T254] netlink_unicast+0x449/0x710 [ 5099.145574][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.145574][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.145574][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.145574][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.145574][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.145574][ T254] [ 5099.147771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.147771][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5099.147771][ T254] ipv6_find_idev+0x102/0x170 [ 5099.147771][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5099.147771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5099.147771][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.147771][ T254] netlink_unicast+0x449/0x710 [ 5099.147771][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.147771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.147771][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.147771][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.147771][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.147771][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5099.147771][ T254] [ 5099.149493][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5099.149493][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5099.149493][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5099.149493][ T254] ipv6_find_idev+0x102/0x170 [ 5099.149493][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5099.149493][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5099.149493][ T254] netlink_rcv_skb+0x130/0x360 [ 5099.149493][ T254] netlink_unicast+0x449/0x710 [ 5099.149493][ T254] netlink_sendmsg+0x723/0xbe0 [ 5099.149493][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5099.149493][ T254] ___sys_sendmsg+0xee/0x170 [ 5099.149493][ T254] __sys_sendmsg+0xcd/0x170 [ 5099.149493][ T254] do_syscall_64+0xc6/0x1e0 [ 5099.149493][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5099.149493][ T254] [ 5109.391844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5109.392316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.392316][ T254] dst_init+0x84/0x4a0 [ 5109.392316][ T254] dst_alloc+0x97/0x150 [ 5109.392316][ T254] ip6_dst_alloc+0x23/0x90 [ 5109.392316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5109.392316][ T254] ip6_pol_route+0x56f/0x840 [ 5109.392316][ T254] fib6_rule_lookup+0x334/0x630 [ 5109.392316][ T254] ip6_route_output_flags+0x259/0x480 [ 5109.392316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5109.392316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5109.392316][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.392316][ T254] netlink_unicast+0x449/0x710 [ 5109.392316][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.392316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.392316][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.392316][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.392316][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.392316][ T254] [ 5109.394573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.394573][ T254] netdev_get_by_index+0x5e/0x80 [ 5109.394573][ T254] fib6_nh_init+0x3d8/0x1580 [ 5109.394573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5109.394573][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5109.394573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5109.394573][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5109.394573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5109.394573][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5109.394573][ T254] addrconf_dad_begin+0x310/0x670 [ 5109.394573][ T254] addrconf_dad_work+0x10b/0xab0 [ 5109.394573][ T254] process_one_work+0x84d/0x18a0 [ 5109.394573][ T254] worker_thread+0x587/0xd30 [ 5109.394573][ T254] kthread+0x28a/0x350 [ 5109.394573][ T254] ret_from_fork+0x31/0x70 [ 5109.394573][ T254] ret_from_fork_asm+0x1a/0x30 [ 5109.394573][ T254] [ 5109.396751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.396751][ T254] netdev_get_by_index+0x5e/0x80 [ 5109.396751][ T254] fib6_nh_init+0x3d8/0x1580 [ 5109.396751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5109.396751][ T254] ip6_route_add+0x1c/0x140 [ 5109.396751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5109.396751][ T254] inet6_addr_add+0x4f8/0xa40 [ 5109.396751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5109.396751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5109.396751][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.396751][ T254] netlink_unicast+0x449/0x710 [ 5109.396751][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.396751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.396751][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.396751][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.396751][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.396751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5109.396751][ T254] [ 5109.399030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.399030][ T254] netdev_get_by_index+0x5e/0x80 [ 5109.399030][ T254] fib6_nh_init+0x3d8/0x1580 [ 5109.399030][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5109.399030][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5109.399030][ T254] ipv6_add_addr+0x411/0x2000 [ 5109.399030][ T254] inet6_addr_add+0x30e/0xa40 [ 5109.399030][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5109.399030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5109.399030][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.399030][ T254] netlink_unicast+0x449/0x710 [ 5109.399030][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.399030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.399030][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.399030][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.399030][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.399030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5109.399030][ T254] [ 5109.401326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.401326][ T254] netdev_get_by_index+0x5e/0x80 [ 5109.401326][ T254] fib6_nh_init+0x3d8/0x1580 [ 5109.401326][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5109.401326][ T254] ip6_route_add+0x1c/0x140 [ 5109.401326][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5109.401326][ T254] addrconf_add_dev+0xe2/0x170 [ 5109.401326][ T254] inet6_addr_add+0x12f/0xa40 [ 5109.401326][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5109.401326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5109.401326][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.401326][ T254] netlink_unicast+0x449/0x710 [ 5109.401326][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.401326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.401326][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.401326][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.401326][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.401326][ T254] [ 5109.403564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.403564][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5109.403564][ T254] ipv6_find_idev+0x102/0x170 [ 5109.403564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5109.403564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5109.403564][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.403564][ T254] netlink_unicast+0x449/0x710 [ 5109.403564][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.403564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.403564][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.403564][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.403564][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.403564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5109.403564][ T254] [ 5109.405294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5109.405294][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5109.405294][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5109.405294][ T254] ipv6_find_idev+0x102/0x170 [ 5109.405294][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5109.405294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5109.405294][ T254] netlink_rcv_skb+0x130/0x360 [ 5109.405294][ T254] netlink_unicast+0x449/0x710 [ 5109.405294][ T254] netlink_sendmsg+0x723/0xbe0 [ 5109.405294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5109.405294][ T254] ___sys_sendmsg+0xee/0x170 [ 5109.405294][ T254] __sys_sendmsg+0xcd/0x170 [ 5109.405294][ T254] do_syscall_64+0xc6/0x1e0 [ 5109.405294][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5109.405294][ T254] [ 5119.647778][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5119.648239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.648239][ T254] dst_init+0x84/0x4a0 [ 5119.648239][ T254] dst_alloc+0x97/0x150 [ 5119.648239][ T254] ip6_dst_alloc+0x23/0x90 [ 5119.648239][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5119.648239][ T254] ip6_pol_route+0x56f/0x840 [ 5119.648239][ T254] fib6_rule_lookup+0x334/0x630 [ 5119.648239][ T254] ip6_route_output_flags+0x259/0x480 [ 5119.648239][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5119.648239][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5119.648239][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.648239][ T254] netlink_unicast+0x449/0x710 [ 5119.648239][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.648239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.648239][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.648239][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.648239][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.648239][ T254] [ 5119.650447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.650447][ T254] netdev_get_by_index+0x5e/0x80 [ 5119.650447][ T254] fib6_nh_init+0x3d8/0x1580 [ 5119.650447][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5119.650447][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5119.650447][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5119.650447][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5119.650447][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5119.650447][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5119.650447][ T254] addrconf_dad_begin+0x310/0x670 [ 5119.650447][ T254] addrconf_dad_work+0x10b/0xab0 [ 5119.650447][ T254] process_one_work+0x84d/0x18a0 [ 5119.650447][ T254] worker_thread+0x587/0xd30 [ 5119.650447][ T254] kthread+0x28a/0x350 [ 5119.650447][ T254] ret_from_fork+0x31/0x70 [ 5119.650447][ T254] ret_from_fork_asm+0x1a/0x30 [ 5119.650447][ T254] [ 5119.652598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.652598][ T254] netdev_get_by_index+0x5e/0x80 [ 5119.652598][ T254] fib6_nh_init+0x3d8/0x1580 [ 5119.652598][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5119.652598][ T254] ip6_route_add+0x1c/0x140 [ 5119.652598][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5119.652598][ T254] inet6_addr_add+0x4f8/0xa40 [ 5119.652598][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5119.652598][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5119.652598][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.652598][ T254] netlink_unicast+0x449/0x710 [ 5119.652598][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.652598][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.652598][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.652598][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.652598][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.652598][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5119.652598][ T254] [ 5119.654844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.654844][ T254] netdev_get_by_index+0x5e/0x80 [ 5119.654844][ T254] fib6_nh_init+0x3d8/0x1580 [ 5119.654844][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5119.654844][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5119.654844][ T254] ipv6_add_addr+0x411/0x2000 [ 5119.654844][ T254] inet6_addr_add+0x30e/0xa40 [ 5119.654844][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5119.654844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5119.654844][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.654844][ T254] netlink_unicast+0x449/0x710 [ 5119.654844][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.654844][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.654844][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.654844][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.654844][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.654844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5119.654844][ T254] [ 5119.657074][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.657074][ T254] netdev_get_by_index+0x5e/0x80 [ 5119.657074][ T254] fib6_nh_init+0x3d8/0x1580 [ 5119.657074][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5119.657074][ T254] ip6_route_add+0x1c/0x140 [ 5119.657074][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5119.657074][ T254] addrconf_add_dev+0xe2/0x170 [ 5119.657074][ T254] inet6_addr_add+0x12f/0xa40 [ 5119.657074][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5119.657074][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5119.657074][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.657074][ T254] netlink_unicast+0x449/0x710 [ 5119.657074][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.657074][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.657074][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.657074][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.657074][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.657074][ T254] [ 5119.659272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.659272][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5119.659272][ T254] ipv6_find_idev+0x102/0x170 [ 5119.659272][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5119.659272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5119.659272][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.659272][ T254] netlink_unicast+0x449/0x710 [ 5119.659272][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.659272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.659272][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.659272][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.659272][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.659272][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5119.659272][ T254] [ 5119.661009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5119.661009][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5119.661009][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5119.661009][ T254] ipv6_find_idev+0x102/0x170 [ 5119.661009][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5119.661009][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5119.661009][ T254] netlink_rcv_skb+0x130/0x360 [ 5119.661009][ T254] netlink_unicast+0x449/0x710 [ 5119.661009][ T254] netlink_sendmsg+0x723/0xbe0 [ 5119.661009][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5119.661009][ T254] ___sys_sendmsg+0xee/0x170 [ 5119.661009][ T254] __sys_sendmsg+0xcd/0x170 [ 5119.661009][ T254] do_syscall_64+0xc6/0x1e0 [ 5119.661009][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5119.661009][ T254] [ 5129.911860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5129.912739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.912739][ T254] dst_init+0x84/0x4a0 [ 5129.912739][ T254] dst_alloc+0x97/0x150 [ 5129.912739][ T254] ip6_dst_alloc+0x23/0x90 [ 5129.912739][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5129.912739][ T254] ip6_pol_route+0x56f/0x840 [ 5129.912739][ T254] fib6_rule_lookup+0x334/0x630 [ 5129.912739][ T254] ip6_route_output_flags+0x259/0x480 [ 5129.912739][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5129.912739][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5129.912739][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.912739][ T254] netlink_unicast+0x449/0x710 [ 5129.912739][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.912739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.912739][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.912739][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.912739][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.912739][ T254] [ 5129.914965][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.914965][ T254] netdev_get_by_index+0x5e/0x80 [ 5129.914965][ T254] fib6_nh_init+0x3d8/0x1580 [ 5129.914965][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5129.914965][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5129.914965][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5129.914965][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5129.914965][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5129.914965][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5129.914965][ T254] addrconf_dad_begin+0x310/0x670 [ 5129.914965][ T254] addrconf_dad_work+0x10b/0xab0 [ 5129.914965][ T254] process_one_work+0x84d/0x18a0 [ 5129.914965][ T254] worker_thread+0x587/0xd30 [ 5129.914965][ T254] kthread+0x28a/0x350 [ 5129.914965][ T254] ret_from_fork+0x31/0x70 [ 5129.914965][ T254] ret_from_fork_asm+0x1a/0x30 [ 5129.914965][ T254] [ 5129.917103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.917103][ T254] netdev_get_by_index+0x5e/0x80 [ 5129.917103][ T254] fib6_nh_init+0x3d8/0x1580 [ 5129.917103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5129.917103][ T254] ip6_route_add+0x1c/0x140 [ 5129.917103][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5129.917103][ T254] inet6_addr_add+0x4f8/0xa40 [ 5129.917103][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5129.917103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5129.917103][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.917103][ T254] netlink_unicast+0x449/0x710 [ 5129.917103][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.917103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.917103][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.917103][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.917103][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.917103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5129.917103][ T254] [ 5129.919339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.919339][ T254] netdev_get_by_index+0x5e/0x80 [ 5129.919339][ T254] fib6_nh_init+0x3d8/0x1580 [ 5129.919339][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5129.919339][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5129.919339][ T254] ipv6_add_addr+0x411/0x2000 [ 5129.919339][ T254] inet6_addr_add+0x30e/0xa40 [ 5129.919339][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5129.919339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5129.919339][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.919339][ T254] netlink_unicast+0x449/0x710 [ 5129.919339][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.919339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.919339][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.919339][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.919339][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.919339][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5129.919339][ T254] [ 5129.921573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.921573][ T254] netdev_get_by_index+0x5e/0x80 [ 5129.921573][ T254] fib6_nh_init+0x3d8/0x1580 [ 5129.921573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5129.921573][ T254] ip6_route_add+0x1c/0x140 [ 5129.921573][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5129.921573][ T254] addrconf_add_dev+0xe2/0x170 [ 5129.921573][ T254] inet6_addr_add+0x12f/0xa40 [ 5129.921573][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5129.921573][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5129.921573][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.921573][ T254] netlink_unicast+0x449/0x710 [ 5129.921573][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.921573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.921573][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.921573][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.921573][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.921573][ T254] [ 5129.923768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.923768][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5129.923768][ T254] ipv6_find_idev+0x102/0x170 [ 5129.923768][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5129.923768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5129.923768][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.923768][ T254] netlink_unicast+0x449/0x710 [ 5129.923768][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.923768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.923768][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.923768][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.923768][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.923768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5129.923768][ T254] [ 5129.925503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5129.925503][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5129.925503][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5129.925503][ T254] ipv6_find_idev+0x102/0x170 [ 5129.925503][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5129.925503][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5129.925503][ T254] netlink_rcv_skb+0x130/0x360 [ 5129.925503][ T254] netlink_unicast+0x449/0x710 [ 5129.925503][ T254] netlink_sendmsg+0x723/0xbe0 [ 5129.925503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5129.925503][ T254] ___sys_sendmsg+0xee/0x170 [ 5129.925503][ T254] __sys_sendmsg+0xcd/0x170 [ 5129.925503][ T254] do_syscall_64+0xc6/0x1e0 [ 5129.925503][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5129.925503][ T254] [ 5140.167857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5140.168597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.168597][ T254] dst_init+0x84/0x4a0 [ 5140.168597][ T254] dst_alloc+0x97/0x150 [ 5140.168597][ T254] ip6_dst_alloc+0x23/0x90 [ 5140.168597][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5140.168597][ T254] ip6_pol_route+0x56f/0x840 [ 5140.168597][ T254] fib6_rule_lookup+0x334/0x630 [ 5140.168597][ T254] ip6_route_output_flags+0x259/0x480 [ 5140.168597][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5140.168597][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5140.168597][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.168597][ T254] netlink_unicast+0x449/0x710 [ 5140.168597][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.168597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.168597][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.168597][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.168597][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.168597][ T254] [ 5140.170838][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.170838][ T254] netdev_get_by_index+0x5e/0x80 [ 5140.170838][ T254] fib6_nh_init+0x3d8/0x1580 [ 5140.170838][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5140.170838][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5140.170838][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5140.170838][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5140.170838][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5140.170838][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5140.170838][ T254] addrconf_dad_begin+0x310/0x670 [ 5140.170838][ T254] addrconf_dad_work+0x10b/0xab0 [ 5140.170838][ T254] process_one_work+0x84d/0x18a0 [ 5140.170838][ T254] worker_thread+0x587/0xd30 [ 5140.170838][ T254] kthread+0x28a/0x350 [ 5140.170838][ T254] ret_from_fork+0x31/0x70 [ 5140.170838][ T254] ret_from_fork_asm+0x1a/0x30 [ 5140.170838][ T254] [ 5140.173035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.173035][ T254] netdev_get_by_index+0x5e/0x80 [ 5140.173035][ T254] fib6_nh_init+0x3d8/0x1580 [ 5140.173035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5140.173035][ T254] ip6_route_add+0x1c/0x140 [ 5140.173035][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5140.173035][ T254] inet6_addr_add+0x4f8/0xa40 [ 5140.173035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5140.173035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5140.173035][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.173035][ T254] netlink_unicast+0x449/0x710 [ 5140.173035][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.173035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.173035][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.173035][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.173035][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.173035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5140.173035][ T254] [ 5140.175308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.175308][ T254] netdev_get_by_index+0x5e/0x80 [ 5140.175308][ T254] fib6_nh_init+0x3d8/0x1580 [ 5140.175308][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5140.175308][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5140.175308][ T254] ipv6_add_addr+0x411/0x2000 [ 5140.175308][ T254] inet6_addr_add+0x30e/0xa40 [ 5140.175308][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5140.175308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5140.175308][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.175308][ T254] netlink_unicast+0x449/0x710 [ 5140.175308][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.175308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.175308][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.175308][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.175308][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.175308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5140.175308][ T254] [ 5140.177582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.177582][ T254] netdev_get_by_index+0x5e/0x80 [ 5140.177582][ T254] fib6_nh_init+0x3d8/0x1580 [ 5140.177582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5140.177582][ T254] ip6_route_add+0x1c/0x140 [ 5140.177582][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5140.177582][ T254] addrconf_add_dev+0xe2/0x170 [ 5140.177582][ T254] inet6_addr_add+0x12f/0xa40 [ 5140.177582][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5140.177582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5140.177582][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.177582][ T254] netlink_unicast+0x449/0x710 [ 5140.177582][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.177582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.177582][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.177582][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.177582][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.177582][ T254] [ 5140.179811][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.179811][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5140.179811][ T254] ipv6_find_idev+0x102/0x170 [ 5140.179811][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5140.179811][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5140.179811][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.179811][ T254] netlink_unicast+0x449/0x710 [ 5140.179811][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.179811][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.179811][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.179811][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.179811][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.179811][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5140.179811][ T254] [ 5140.181533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5140.181533][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5140.181533][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5140.181533][ T254] ipv6_find_idev+0x102/0x170 [ 5140.181533][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5140.181533][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5140.181533][ T254] netlink_rcv_skb+0x130/0x360 [ 5140.181533][ T254] netlink_unicast+0x449/0x710 [ 5140.181533][ T254] netlink_sendmsg+0x723/0xbe0 [ 5140.181533][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5140.181533][ T254] ___sys_sendmsg+0xee/0x170 [ 5140.181533][ T254] __sys_sendmsg+0xcd/0x170 [ 5140.181533][ T254] do_syscall_64+0xc6/0x1e0 [ 5140.181533][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5140.181533][ T254] [ 5150.272039][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5150.272646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.272646][ T254] dst_init+0x84/0x4a0 [ 5150.272646][ T254] dst_alloc+0x97/0x150 [ 5150.272646][ T254] ip6_dst_alloc+0x23/0x90 [ 5150.272646][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5150.272646][ T254] ip6_pol_route+0x56f/0x840 [ 5150.272646][ T254] fib6_rule_lookup+0x334/0x630 [ 5150.272646][ T254] ip6_route_output_flags+0x259/0x480 [ 5150.272646][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5150.272646][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5150.272646][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.272646][ T254] netlink_unicast+0x449/0x710 [ 5150.272646][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.272646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.272646][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.272646][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.272646][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.272646][ T254] [ 5150.274896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.274896][ T254] netdev_get_by_index+0x5e/0x80 [ 5150.274896][ T254] fib6_nh_init+0x3d8/0x1580 [ 5150.274896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5150.274896][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5150.274896][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5150.274896][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5150.274896][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5150.274896][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5150.274896][ T254] addrconf_dad_begin+0x310/0x670 [ 5150.274896][ T254] addrconf_dad_work+0x10b/0xab0 [ 5150.274896][ T254] process_one_work+0x84d/0x18a0 [ 5150.274896][ T254] worker_thread+0x587/0xd30 [ 5150.274896][ T254] kthread+0x28a/0x350 [ 5150.274896][ T254] ret_from_fork+0x31/0x70 [ 5150.274896][ T254] ret_from_fork_asm+0x1a/0x30 [ 5150.274896][ T254] [ 5150.277062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.277062][ T254] netdev_get_by_index+0x5e/0x80 [ 5150.277062][ T254] fib6_nh_init+0x3d8/0x1580 [ 5150.277062][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5150.277062][ T254] ip6_route_add+0x1c/0x140 [ 5150.277062][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5150.277062][ T254] inet6_addr_add+0x4f8/0xa40 [ 5150.277062][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5150.277062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5150.277062][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.277062][ T254] netlink_unicast+0x449/0x710 [ 5150.277062][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.277062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.277062][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.277062][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.277062][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.277062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5150.277062][ T254] [ 5150.279301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.279301][ T254] netdev_get_by_index+0x5e/0x80 [ 5150.279301][ T254] fib6_nh_init+0x3d8/0x1580 [ 5150.279301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5150.279301][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5150.279301][ T254] ipv6_add_addr+0x411/0x2000 [ 5150.279301][ T254] inet6_addr_add+0x30e/0xa40 [ 5150.279301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5150.279301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5150.279301][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.279301][ T254] netlink_unicast+0x449/0x710 [ 5150.279301][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.279301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.279301][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.279301][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.279301][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.279301][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5150.279301][ T254] [ 5150.281538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.281538][ T254] netdev_get_by_index+0x5e/0x80 [ 5150.281538][ T254] fib6_nh_init+0x3d8/0x1580 [ 5150.281538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5150.281538][ T254] ip6_route_add+0x1c/0x140 [ 5150.281538][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5150.281538][ T254] addrconf_add_dev+0xe2/0x170 [ 5150.281538][ T254] inet6_addr_add+0x12f/0xa40 [ 5150.281538][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5150.281538][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5150.281538][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.281538][ T254] netlink_unicast+0x449/0x710 [ 5150.281538][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.281538][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.281538][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.281538][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.281538][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.281538][ T254] [ 5150.283755][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.283755][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5150.283755][ T254] ipv6_find_idev+0x102/0x170 [ 5150.283755][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5150.283755][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5150.283755][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.283755][ T254] netlink_unicast+0x449/0x710 [ 5150.283755][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.283755][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.283755][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.283755][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.283755][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.283755][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5150.283755][ T254] [ 5150.285480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5150.285480][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5150.285480][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5150.285480][ T254] ipv6_find_idev+0x102/0x170 [ 5150.285480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5150.285480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5150.285480][ T254] netlink_rcv_skb+0x130/0x360 [ 5150.285480][ T254] netlink_unicast+0x449/0x710 [ 5150.285480][ T254] netlink_sendmsg+0x723/0xbe0 [ 5150.285480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5150.285480][ T254] ___sys_sendmsg+0xee/0x170 [ 5150.285480][ T254] __sys_sendmsg+0xcd/0x170 [ 5150.285480][ T254] do_syscall_64+0xc6/0x1e0 [ 5150.285480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5150.285480][ T254] [ 5160.311863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5160.312670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.312670][ T254] dst_init+0x84/0x4a0 [ 5160.312670][ T254] dst_alloc+0x97/0x150 [ 5160.312670][ T254] ip6_dst_alloc+0x23/0x90 [ 5160.312670][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5160.312670][ T254] ip6_pol_route+0x56f/0x840 [ 5160.312670][ T254] fib6_rule_lookup+0x334/0x630 [ 5160.312670][ T254] ip6_route_output_flags+0x259/0x480 [ 5160.312670][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5160.312670][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5160.312670][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.312670][ T254] netlink_unicast+0x449/0x710 [ 5160.312670][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.312670][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.312670][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.312670][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.312670][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.312670][ T254] [ 5160.314893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.314893][ T254] netdev_get_by_index+0x5e/0x80 [ 5160.314893][ T254] fib6_nh_init+0x3d8/0x1580 [ 5160.314893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5160.314893][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5160.314893][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5160.314893][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5160.314893][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5160.314893][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5160.314893][ T254] addrconf_dad_begin+0x310/0x670 [ 5160.314893][ T254] addrconf_dad_work+0x10b/0xab0 [ 5160.314893][ T254] process_one_work+0x84d/0x18a0 [ 5160.314893][ T254] worker_thread+0x587/0xd30 [ 5160.314893][ T254] kthread+0x28a/0x350 [ 5160.314893][ T254] ret_from_fork+0x31/0x70 [ 5160.314893][ T254] ret_from_fork_asm+0x1a/0x30 [ 5160.314893][ T254] [ 5160.317031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.317031][ T254] netdev_get_by_index+0x5e/0x80 [ 5160.317031][ T254] fib6_nh_init+0x3d8/0x1580 [ 5160.317031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5160.317031][ T254] ip6_route_add+0x1c/0x140 [ 5160.317031][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5160.317031][ T254] inet6_addr_add+0x4f8/0xa40 [ 5160.317031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5160.317031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5160.317031][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.317031][ T254] netlink_unicast+0x449/0x710 [ 5160.317031][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.317031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.317031][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.317031][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.317031][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.317031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5160.317031][ T254] [ 5160.319280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.319280][ T254] netdev_get_by_index+0x5e/0x80 [ 5160.319280][ T254] fib6_nh_init+0x3d8/0x1580 [ 5160.319280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5160.319280][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5160.319280][ T254] ipv6_add_addr+0x411/0x2000 [ 5160.319280][ T254] inet6_addr_add+0x30e/0xa40 [ 5160.319280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5160.319280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5160.319280][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.319280][ T254] netlink_unicast+0x449/0x710 [ 5160.319280][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.319280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.319280][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.319280][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.319280][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.319280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5160.319280][ T254] [ 5160.321526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.321526][ T254] netdev_get_by_index+0x5e/0x80 [ 5160.321526][ T254] fib6_nh_init+0x3d8/0x1580 [ 5160.321526][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5160.321526][ T254] ip6_route_add+0x1c/0x140 [ 5160.321526][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5160.321526][ T254] addrconf_add_dev+0xe2/0x170 [ 5160.321526][ T254] inet6_addr_add+0x12f/0xa40 [ 5160.321526][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5160.321526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5160.321526][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.321526][ T254] netlink_unicast+0x449/0x710 [ 5160.321526][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.321526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.321526][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.321526][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.321526][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.321526][ T254] [ 5160.323720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.323720][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5160.323720][ T254] ipv6_find_idev+0x102/0x170 [ 5160.323720][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5160.323720][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5160.323720][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.323720][ T254] netlink_unicast+0x449/0x710 [ 5160.323720][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.323720][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.323720][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.323720][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.323720][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.323720][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5160.323720][ T254] [ 5160.325439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5160.325439][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5160.325439][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5160.325439][ T254] ipv6_find_idev+0x102/0x170 [ 5160.325439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5160.325439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5160.325439][ T254] netlink_rcv_skb+0x130/0x360 [ 5160.325439][ T254] netlink_unicast+0x449/0x710 [ 5160.325439][ T254] netlink_sendmsg+0x723/0xbe0 [ 5160.325439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5160.325439][ T254] ___sys_sendmsg+0xee/0x170 [ 5160.325439][ T254] __sys_sendmsg+0xcd/0x170 [ 5160.325439][ T254] do_syscall_64+0xc6/0x1e0 [ 5160.325439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5160.325439][ T254] [ 5170.503866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5170.504786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.504786][ T254] dst_init+0x84/0x4a0 [ 5170.504786][ T254] dst_alloc+0x97/0x150 [ 5170.504786][ T254] ip6_dst_alloc+0x23/0x90 [ 5170.504786][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5170.504786][ T254] ip6_pol_route+0x56f/0x840 [ 5170.504786][ T254] fib6_rule_lookup+0x334/0x630 [ 5170.504786][ T254] ip6_route_output_flags+0x259/0x480 [ 5170.504786][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5170.504786][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5170.504786][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.504786][ T254] netlink_unicast+0x449/0x710 [ 5170.504786][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.504786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.504786][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.504786][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.504786][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.504786][ T254] [ 5170.507025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.507025][ T254] netdev_get_by_index+0x5e/0x80 [ 5170.507025][ T254] fib6_nh_init+0x3d8/0x1580 [ 5170.507025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5170.507025][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5170.507025][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5170.507025][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5170.507025][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5170.507025][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5170.507025][ T254] addrconf_dad_begin+0x310/0x670 [ 5170.507025][ T254] addrconf_dad_work+0x10b/0xab0 [ 5170.507025][ T254] process_one_work+0x84d/0x18a0 [ 5170.507025][ T254] worker_thread+0x587/0xd30 [ 5170.507025][ T254] kthread+0x28a/0x350 [ 5170.507025][ T254] ret_from_fork+0x31/0x70 [ 5170.507025][ T254] ret_from_fork_asm+0x1a/0x30 [ 5170.507025][ T254] [ 5170.509165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.509165][ T254] netdev_get_by_index+0x5e/0x80 [ 5170.509165][ T254] fib6_nh_init+0x3d8/0x1580 [ 5170.509165][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5170.509165][ T254] ip6_route_add+0x1c/0x140 [ 5170.509165][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5170.509165][ T254] inet6_addr_add+0x4f8/0xa40 [ 5170.509165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5170.509165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5170.509165][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.509165][ T254] netlink_unicast+0x449/0x710 [ 5170.509165][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.509165][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.509165][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.509165][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.509165][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.509165][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5170.509165][ T254] [ 5170.511452][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.511452][ T254] netdev_get_by_index+0x5e/0x80 [ 5170.511452][ T254] fib6_nh_init+0x3d8/0x1580 [ 5170.511452][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5170.511452][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5170.511452][ T254] ipv6_add_addr+0x411/0x2000 [ 5170.511452][ T254] inet6_addr_add+0x30e/0xa40 [ 5170.511452][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5170.511452][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5170.511452][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.511452][ T254] netlink_unicast+0x449/0x710 [ 5170.511452][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.511452][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.511452][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.511452][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.511452][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.511452][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5170.511452][ T254] [ 5170.513714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.513714][ T254] netdev_get_by_index+0x5e/0x80 [ 5170.513714][ T254] fib6_nh_init+0x3d8/0x1580 [ 5170.513714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5170.513714][ T254] ip6_route_add+0x1c/0x140 [ 5170.513714][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5170.513714][ T254] addrconf_add_dev+0xe2/0x170 [ 5170.513714][ T254] inet6_addr_add+0x12f/0xa40 [ 5170.513714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5170.513714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5170.513714][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.513714][ T254] netlink_unicast+0x449/0x710 [ 5170.513714][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.513714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.513714][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.513714][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.513714][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.513714][ T254] [ 5170.515920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.515920][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5170.515920][ T254] ipv6_find_idev+0x102/0x170 [ 5170.515920][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5170.515920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5170.515920][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.515920][ T254] netlink_unicast+0x449/0x710 [ 5170.515920][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.515920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.515920][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.515920][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.515920][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.515920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5170.515920][ T254] [ 5170.517643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5170.517643][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5170.517643][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5170.517643][ T254] ipv6_find_idev+0x102/0x170 [ 5170.517643][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5170.517643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5170.517643][ T254] netlink_rcv_skb+0x130/0x360 [ 5170.517643][ T254] netlink_unicast+0x449/0x710 [ 5170.517643][ T254] netlink_sendmsg+0x723/0xbe0 [ 5170.517643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5170.517643][ T254] ___sys_sendmsg+0xee/0x170 [ 5170.517643][ T254] __sys_sendmsg+0xcd/0x170 [ 5170.517643][ T254] do_syscall_64+0xc6/0x1e0 [ 5170.517643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5170.517643][ T254] [ 5180.759779][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5180.760249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.760249][ T254] dst_init+0x84/0x4a0 [ 5180.760249][ T254] dst_alloc+0x97/0x150 [ 5180.760249][ T254] ip6_dst_alloc+0x23/0x90 [ 5180.760249][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5180.760249][ T254] ip6_pol_route+0x56f/0x840 [ 5180.760249][ T254] fib6_rule_lookup+0x334/0x630 [ 5180.760249][ T254] ip6_route_output_flags+0x259/0x480 [ 5180.760249][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5180.760249][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5180.760249][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.760249][ T254] netlink_unicast+0x449/0x710 [ 5180.760249][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.760249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.760249][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.760249][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.760249][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.760249][ T254] [ 5180.762436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.762436][ T254] netdev_get_by_index+0x5e/0x80 [ 5180.762436][ T254] fib6_nh_init+0x3d8/0x1580 [ 5180.762436][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5180.762436][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5180.762436][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5180.762436][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5180.762436][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5180.762436][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5180.762436][ T254] addrconf_dad_begin+0x310/0x670 [ 5180.762436][ T254] addrconf_dad_work+0x10b/0xab0 [ 5180.762436][ T254] process_one_work+0x84d/0x18a0 [ 5180.762436][ T254] worker_thread+0x587/0xd30 [ 5180.762436][ T254] kthread+0x28a/0x350 [ 5180.762436][ T254] ret_from_fork+0x31/0x70 [ 5180.762436][ T254] ret_from_fork_asm+0x1a/0x30 [ 5180.762436][ T254] [ 5180.764629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.764629][ T254] netdev_get_by_index+0x5e/0x80 [ 5180.764629][ T254] fib6_nh_init+0x3d8/0x1580 [ 5180.764629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5180.764629][ T254] ip6_route_add+0x1c/0x140 [ 5180.764629][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5180.764629][ T254] inet6_addr_add+0x4f8/0xa40 [ 5180.764629][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5180.764629][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5180.764629][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.764629][ T254] netlink_unicast+0x449/0x710 [ 5180.764629][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.764629][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.764629][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.764629][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.764629][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.764629][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5180.764629][ T254] [ 5180.766859][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.766859][ T254] netdev_get_by_index+0x5e/0x80 [ 5180.766859][ T254] fib6_nh_init+0x3d8/0x1580 [ 5180.766859][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5180.766859][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5180.766859][ T254] ipv6_add_addr+0x411/0x2000 [ 5180.766859][ T254] inet6_addr_add+0x30e/0xa40 [ 5180.766859][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5180.766859][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5180.766859][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.766859][ T254] netlink_unicast+0x449/0x710 [ 5180.766859][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.766859][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.766859][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.766859][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.766859][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.766859][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5180.766859][ T254] [ 5180.769095][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.769095][ T254] netdev_get_by_index+0x5e/0x80 [ 5180.769095][ T254] fib6_nh_init+0x3d8/0x1580 [ 5180.769095][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5180.769095][ T254] ip6_route_add+0x1c/0x140 [ 5180.769095][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5180.769095][ T254] addrconf_add_dev+0xe2/0x170 [ 5180.769095][ T254] inet6_addr_add+0x12f/0xa40 [ 5180.769095][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5180.769095][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5180.769095][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.769095][ T254] netlink_unicast+0x449/0x710 [ 5180.769095][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.769095][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.769095][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.769095][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.769095][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.769095][ T254] [ 5180.771282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.771282][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5180.771282][ T254] ipv6_find_idev+0x102/0x170 [ 5180.771282][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5180.771282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5180.771282][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.771282][ T254] netlink_unicast+0x449/0x710 [ 5180.771282][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.771282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.771282][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.771282][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.771282][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.771282][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5180.771282][ T254] [ 5180.773015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5180.773015][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5180.773015][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5180.773015][ T254] ipv6_find_idev+0x102/0x170 [ 5180.773015][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5180.773015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5180.773015][ T254] netlink_rcv_skb+0x130/0x360 [ 5180.773015][ T254] netlink_unicast+0x449/0x710 [ 5180.773015][ T254] netlink_sendmsg+0x723/0xbe0 [ 5180.773015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5180.773015][ T254] ___sys_sendmsg+0xee/0x170 [ 5180.773015][ T254] __sys_sendmsg+0xcd/0x170 [ 5180.773015][ T254] do_syscall_64+0xc6/0x1e0 [ 5180.773015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5180.773015][ T254] [ 5191.015860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5191.016567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.016567][ T254] dst_init+0x84/0x4a0 [ 5191.016567][ T254] dst_alloc+0x97/0x150 [ 5191.016567][ T254] ip6_dst_alloc+0x23/0x90 [ 5191.016567][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5191.016567][ T254] ip6_pol_route+0x56f/0x840 [ 5191.016567][ T254] fib6_rule_lookup+0x334/0x630 [ 5191.016567][ T254] ip6_route_output_flags+0x259/0x480 [ 5191.016567][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5191.016567][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5191.016567][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.016567][ T254] netlink_unicast+0x449/0x710 [ 5191.016567][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.016567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.016567][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.016567][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.016567][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.016567][ T254] [ 5191.019405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.019405][ T254] netdev_get_by_index+0x5e/0x80 [ 5191.019405][ T254] fib6_nh_init+0x3d8/0x1580 [ 5191.019405][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5191.019405][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5191.019405][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5191.019405][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5191.019405][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5191.019405][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5191.019405][ T254] addrconf_dad_begin+0x310/0x670 [ 5191.019405][ T254] addrconf_dad_work+0x10b/0xab0 [ 5191.019405][ T254] process_one_work+0x84d/0x18a0 [ 5191.019405][ T254] worker_thread+0x587/0xd30 [ 5191.019405][ T254] kthread+0x28a/0x350 [ 5191.019405][ T254] ret_from_fork+0x31/0x70 [ 5191.019405][ T254] ret_from_fork_asm+0x1a/0x30 [ 5191.019405][ T254] [ 5191.021547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.021547][ T254] netdev_get_by_index+0x5e/0x80 [ 5191.021547][ T254] fib6_nh_init+0x3d8/0x1580 [ 5191.021547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5191.021547][ T254] ip6_route_add+0x1c/0x140 [ 5191.021547][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5191.021547][ T254] inet6_addr_add+0x4f8/0xa40 [ 5191.021547][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5191.021547][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5191.021547][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.021547][ T254] netlink_unicast+0x449/0x710 [ 5191.021547][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.021547][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.021547][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.021547][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.021547][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.021547][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5191.021547][ T254] [ 5191.023794][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.023794][ T254] netdev_get_by_index+0x5e/0x80 [ 5191.023794][ T254] fib6_nh_init+0x3d8/0x1580 [ 5191.023794][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5191.023794][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5191.023794][ T254] ipv6_add_addr+0x411/0x2000 [ 5191.023794][ T254] inet6_addr_add+0x30e/0xa40 [ 5191.023794][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5191.023794][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5191.023794][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.023794][ T254] netlink_unicast+0x449/0x710 [ 5191.023794][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.023794][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.023794][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.023794][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.023794][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.023794][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5191.023794][ T254] [ 5191.026036][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.026036][ T254] netdev_get_by_index+0x5e/0x80 [ 5191.026036][ T254] fib6_nh_init+0x3d8/0x1580 [ 5191.026036][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5191.026036][ T254] ip6_route_add+0x1c/0x140 [ 5191.026036][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5191.026036][ T254] addrconf_add_dev+0xe2/0x170 [ 5191.026036][ T254] inet6_addr_add+0x12f/0xa40 [ 5191.026036][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5191.026036][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5191.026036][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.026036][ T254] netlink_unicast+0x449/0x710 [ 5191.026036][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.026036][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.026036][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.026036][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.026036][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.026036][ T254] [ 5191.028233][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.028233][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5191.028233][ T254] ipv6_find_idev+0x102/0x170 [ 5191.028233][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5191.028233][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5191.028233][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.028233][ T254] netlink_unicast+0x449/0x710 [ 5191.028233][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.028233][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.028233][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.028233][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.028233][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.028233][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5191.028233][ T254] [ 5191.029964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5191.029964][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5191.029964][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5191.029964][ T254] ipv6_find_idev+0x102/0x170 [ 5191.029964][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5191.029964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5191.029964][ T254] netlink_rcv_skb+0x130/0x360 [ 5191.029964][ T254] netlink_unicast+0x449/0x710 [ 5191.029964][ T254] netlink_sendmsg+0x723/0xbe0 [ 5191.029964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5191.029964][ T254] ___sys_sendmsg+0xee/0x170 [ 5191.029964][ T254] __sys_sendmsg+0xcd/0x170 [ 5191.029964][ T254] do_syscall_64+0xc6/0x1e0 [ 5191.029964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5191.029964][ T254] [ 5201.271847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5201.272669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.272669][ T254] dst_init+0x84/0x4a0 [ 5201.272669][ T254] dst_alloc+0x97/0x150 [ 5201.272669][ T254] ip6_dst_alloc+0x23/0x90 [ 5201.272669][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5201.272669][ T254] ip6_pol_route+0x56f/0x840 [ 5201.272669][ T254] fib6_rule_lookup+0x334/0x630 [ 5201.272669][ T254] ip6_route_output_flags+0x259/0x480 [ 5201.272669][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5201.272669][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5201.272669][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.272669][ T254] netlink_unicast+0x449/0x710 [ 5201.272669][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.272669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.272669][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.272669][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.272669][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.272669][ T254] [ 5201.275263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.275263][ T254] netdev_get_by_index+0x5e/0x80 [ 5201.275263][ T254] fib6_nh_init+0x3d8/0x1580 [ 5201.275263][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5201.275263][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5201.275263][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5201.275263][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5201.275263][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5201.275263][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5201.275263][ T254] addrconf_dad_begin+0x310/0x670 [ 5201.275263][ T254] addrconf_dad_work+0x10b/0xab0 [ 5201.275263][ T254] process_one_work+0x84d/0x18a0 [ 5201.275263][ T254] worker_thread+0x587/0xd30 [ 5201.275263][ T254] kthread+0x28a/0x350 [ 5201.275263][ T254] ret_from_fork+0x31/0x70 [ 5201.275263][ T254] ret_from_fork_asm+0x1a/0x30 [ 5201.275263][ T254] [ 5201.277393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.277393][ T254] netdev_get_by_index+0x5e/0x80 [ 5201.277393][ T254] fib6_nh_init+0x3d8/0x1580 [ 5201.277393][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5201.277393][ T254] ip6_route_add+0x1c/0x140 [ 5201.277393][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5201.277393][ T254] inet6_addr_add+0x4f8/0xa40 [ 5201.277393][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5201.277393][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5201.277393][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.277393][ T254] netlink_unicast+0x449/0x710 [ 5201.277393][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.277393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.277393][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.277393][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.277393][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.277393][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5201.277393][ T254] [ 5201.279621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.279621][ T254] netdev_get_by_index+0x5e/0x80 [ 5201.279621][ T254] fib6_nh_init+0x3d8/0x1580 [ 5201.279621][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5201.279621][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5201.279621][ T254] ipv6_add_addr+0x411/0x2000 [ 5201.279621][ T254] inet6_addr_add+0x30e/0xa40 [ 5201.279621][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5201.279621][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5201.279621][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.279621][ T254] netlink_unicast+0x449/0x710 [ 5201.279621][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.279621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.279621][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.279621][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.279621][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.279621][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5201.279621][ T254] [ 5201.281862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.281862][ T254] netdev_get_by_index+0x5e/0x80 [ 5201.281862][ T254] fib6_nh_init+0x3d8/0x1580 [ 5201.281862][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5201.281862][ T254] ip6_route_add+0x1c/0x140 [ 5201.281862][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5201.281862][ T254] addrconf_add_dev+0xe2/0x170 [ 5201.281862][ T254] inet6_addr_add+0x12f/0xa40 [ 5201.281862][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5201.281862][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5201.281862][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.281862][ T254] netlink_unicast+0x449/0x710 [ 5201.281862][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.281862][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.281862][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.281862][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.281862][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.281862][ T254] [ 5201.284057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.284057][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5201.284057][ T254] ipv6_find_idev+0x102/0x170 [ 5201.284057][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5201.284057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5201.284057][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.284057][ T254] netlink_unicast+0x449/0x710 [ 5201.284057][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.284057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.284057][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.284057][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.284057][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.284057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5201.284057][ T254] [ 5201.285769][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5201.285769][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5201.285769][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5201.285769][ T254] ipv6_find_idev+0x102/0x170 [ 5201.285769][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5201.285769][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5201.285769][ T254] netlink_rcv_skb+0x130/0x360 [ 5201.285769][ T254] netlink_unicast+0x449/0x710 [ 5201.285769][ T254] netlink_sendmsg+0x723/0xbe0 [ 5201.285769][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5201.285769][ T254] ___sys_sendmsg+0xee/0x170 [ 5201.285769][ T254] __sys_sendmsg+0xcd/0x170 [ 5201.285769][ T254] do_syscall_64+0xc6/0x1e0 [ 5201.285769][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5201.285769][ T254] [ 5211.527783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5211.528243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.528243][ T254] dst_init+0x84/0x4a0 [ 5211.528243][ T254] dst_alloc+0x97/0x150 [ 5211.528243][ T254] ip6_dst_alloc+0x23/0x90 [ 5211.528243][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5211.528243][ T254] ip6_pol_route+0x56f/0x840 [ 5211.528243][ T254] fib6_rule_lookup+0x334/0x630 [ 5211.528243][ T254] ip6_route_output_flags+0x259/0x480 [ 5211.528243][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5211.528243][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5211.528243][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.528243][ T254] netlink_unicast+0x449/0x710 [ 5211.528243][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.528243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.528243][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.528243][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.528243][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.528243][ T254] [ 5211.530444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.530444][ T254] netdev_get_by_index+0x5e/0x80 [ 5211.530444][ T254] fib6_nh_init+0x3d8/0x1580 [ 5211.530444][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5211.530444][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5211.530444][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5211.530444][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5211.530444][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5211.530444][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5211.530444][ T254] addrconf_dad_begin+0x310/0x670 [ 5211.530444][ T254] addrconf_dad_work+0x10b/0xab0 [ 5211.530444][ T254] process_one_work+0x84d/0x18a0 [ 5211.530444][ T254] worker_thread+0x587/0xd30 [ 5211.530444][ T254] kthread+0x28a/0x350 [ 5211.530444][ T254] ret_from_fork+0x31/0x70 [ 5211.530444][ T254] ret_from_fork_asm+0x1a/0x30 [ 5211.530444][ T254] [ 5211.532583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.532583][ T254] netdev_get_by_index+0x5e/0x80 [ 5211.532583][ T254] fib6_nh_init+0x3d8/0x1580 [ 5211.532583][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5211.532583][ T254] ip6_route_add+0x1c/0x140 [ 5211.532583][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5211.532583][ T254] inet6_addr_add+0x4f8/0xa40 [ 5211.532583][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5211.532583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5211.532583][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.532583][ T254] netlink_unicast+0x449/0x710 [ 5211.532583][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.532583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.532583][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.532583][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.532583][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.532583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5211.532583][ T254] [ 5211.534824][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.534824][ T254] netdev_get_by_index+0x5e/0x80 [ 5211.534824][ T254] fib6_nh_init+0x3d8/0x1580 [ 5211.534824][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5211.534824][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5211.534824][ T254] ipv6_add_addr+0x411/0x2000 [ 5211.534824][ T254] inet6_addr_add+0x30e/0xa40 [ 5211.534824][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5211.534824][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5211.534824][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.534824][ T254] netlink_unicast+0x449/0x710 [ 5211.534824][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.534824][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.534824][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.534824][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.534824][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.534824][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5211.534824][ T254] [ 5211.537054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.537054][ T254] netdev_get_by_index+0x5e/0x80 [ 5211.537054][ T254] fib6_nh_init+0x3d8/0x1580 [ 5211.537054][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5211.537054][ T254] ip6_route_add+0x1c/0x140 [ 5211.537054][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5211.537054][ T254] addrconf_add_dev+0xe2/0x170 [ 5211.537054][ T254] inet6_addr_add+0x12f/0xa40 [ 5211.537054][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5211.537054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5211.537054][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.537054][ T254] netlink_unicast+0x449/0x710 [ 5211.537054][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.537054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.537054][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.537054][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.537054][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.537054][ T254] [ 5211.539238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.539238][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5211.539238][ T254] ipv6_find_idev+0x102/0x170 [ 5211.539238][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5211.539238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5211.539238][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.539238][ T254] netlink_unicast+0x449/0x710 [ 5211.539238][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.539238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.539238][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.539238][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.539238][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.539238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5211.539238][ T254] [ 5211.540956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5211.540956][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5211.540956][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5211.540956][ T254] ipv6_find_idev+0x102/0x170 [ 5211.540956][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5211.540956][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5211.540956][ T254] netlink_rcv_skb+0x130/0x360 [ 5211.540956][ T254] netlink_unicast+0x449/0x710 [ 5211.540956][ T254] netlink_sendmsg+0x723/0xbe0 [ 5211.540956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5211.540956][ T254] ___sys_sendmsg+0xee/0x170 [ 5211.540956][ T254] __sys_sendmsg+0xcd/0x170 [ 5211.540956][ T254] do_syscall_64+0xc6/0x1e0 [ 5211.540956][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5211.540956][ T254] [ 5221.727853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5221.728341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.728341][ T254] dst_init+0x84/0x4a0 [ 5221.728341][ T254] dst_alloc+0x97/0x150 [ 5221.728341][ T254] ip6_dst_alloc+0x23/0x90 [ 5221.728341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5221.728341][ T254] ip6_pol_route+0x56f/0x840 [ 5221.728341][ T254] fib6_rule_lookup+0x334/0x630 [ 5221.728341][ T254] ip6_route_output_flags+0x259/0x480 [ 5221.728341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5221.728341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5221.728341][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.728341][ T254] netlink_unicast+0x449/0x710 [ 5221.728341][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.728341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.728341][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.728341][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.728341][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.728341][ T254] [ 5221.730535][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.730535][ T254] netdev_get_by_index+0x5e/0x80 [ 5221.730535][ T254] fib6_nh_init+0x3d8/0x1580 [ 5221.730535][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5221.730535][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5221.730535][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5221.730535][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5221.730535][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5221.730535][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5221.730535][ T254] addrconf_dad_begin+0x310/0x670 [ 5221.730535][ T254] addrconf_dad_work+0x10b/0xab0 [ 5221.730535][ T254] process_one_work+0x84d/0x18a0 [ 5221.730535][ T254] worker_thread+0x587/0xd30 [ 5221.730535][ T254] kthread+0x28a/0x350 [ 5221.730535][ T254] ret_from_fork+0x31/0x70 [ 5221.730535][ T254] ret_from_fork_asm+0x1a/0x30 [ 5221.730535][ T254] [ 5221.732700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.732700][ T254] netdev_get_by_index+0x5e/0x80 [ 5221.732700][ T254] fib6_nh_init+0x3d8/0x1580 [ 5221.732700][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5221.732700][ T254] ip6_route_add+0x1c/0x140 [ 5221.732700][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5221.732700][ T254] inet6_addr_add+0x4f8/0xa40 [ 5221.732700][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5221.732700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5221.732700][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.732700][ T254] netlink_unicast+0x449/0x710 [ 5221.732700][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.732700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.732700][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.732700][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.732700][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.732700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5221.732700][ T254] [ 5221.734962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.734962][ T254] netdev_get_by_index+0x5e/0x80 [ 5221.734962][ T254] fib6_nh_init+0x3d8/0x1580 [ 5221.734962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5221.734962][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5221.734962][ T254] ipv6_add_addr+0x411/0x2000 [ 5221.734962][ T254] inet6_addr_add+0x30e/0xa40 [ 5221.734962][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5221.734962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5221.734962][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.734962][ T254] netlink_unicast+0x449/0x710 [ 5221.734962][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.734962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.734962][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.734962][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.734962][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.734962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5221.734962][ T254] [ 5221.737600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.737600][ T254] netdev_get_by_index+0x5e/0x80 [ 5221.737600][ T254] fib6_nh_init+0x3d8/0x1580 [ 5221.737600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5221.737600][ T254] ip6_route_add+0x1c/0x140 [ 5221.737600][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5221.737600][ T254] addrconf_add_dev+0xe2/0x170 [ 5221.737600][ T254] inet6_addr_add+0x12f/0xa40 [ 5221.737600][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5221.737600][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5221.737600][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.737600][ T254] netlink_unicast+0x449/0x710 [ 5221.737600][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.737600][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.737600][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.737600][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.737600][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.737600][ T254] [ 5221.739796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.739796][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5221.739796][ T254] ipv6_find_idev+0x102/0x170 [ 5221.739796][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5221.739796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5221.739796][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.739796][ T254] netlink_unicast+0x449/0x710 [ 5221.739796][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.739796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.739796][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.739796][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.739796][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.739796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5221.739796][ T254] [ 5221.741536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5221.741536][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5221.741536][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5221.741536][ T254] ipv6_find_idev+0x102/0x170 [ 5221.741536][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5221.741536][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5221.741536][ T254] netlink_rcv_skb+0x130/0x360 [ 5221.741536][ T254] netlink_unicast+0x449/0x710 [ 5221.741536][ T254] netlink_sendmsg+0x723/0xbe0 [ 5221.741536][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5221.741536][ T254] ___sys_sendmsg+0xee/0x170 [ 5221.741536][ T254] __sys_sendmsg+0xcd/0x170 [ 5221.741536][ T254] do_syscall_64+0xc6/0x1e0 [ 5221.741536][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5221.741536][ T254] [ 5231.983856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5231.984604][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.984604][ T254] dst_init+0x84/0x4a0 [ 5231.984604][ T254] dst_alloc+0x97/0x150 [ 5231.984604][ T254] ip6_dst_alloc+0x23/0x90 [ 5231.984604][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5231.984604][ T254] ip6_pol_route+0x56f/0x840 [ 5231.984604][ T254] fib6_rule_lookup+0x334/0x630 [ 5231.984604][ T254] ip6_route_output_flags+0x259/0x480 [ 5231.984604][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5231.984604][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5231.984604][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.984604][ T254] netlink_unicast+0x449/0x710 [ 5231.984604][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.984604][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.984604][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.984604][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.984604][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.984604][ T254] [ 5231.986797][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.986797][ T254] netdev_get_by_index+0x5e/0x80 [ 5231.986797][ T254] fib6_nh_init+0x3d8/0x1580 [ 5231.986797][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5231.986797][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5231.986797][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5231.986797][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5231.986797][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5231.986797][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5231.986797][ T254] addrconf_dad_begin+0x310/0x670 [ 5231.986797][ T254] addrconf_dad_work+0x10b/0xab0 [ 5231.986797][ T254] process_one_work+0x84d/0x18a0 [ 5231.986797][ T254] worker_thread+0x587/0xd30 [ 5231.986797][ T254] kthread+0x28a/0x350 [ 5231.986797][ T254] ret_from_fork+0x31/0x70 [ 5231.986797][ T254] ret_from_fork_asm+0x1a/0x30 [ 5231.986797][ T254] [ 5231.988940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.988940][ T254] netdev_get_by_index+0x5e/0x80 [ 5231.988940][ T254] fib6_nh_init+0x3d8/0x1580 [ 5231.988940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5231.988940][ T254] ip6_route_add+0x1c/0x140 [ 5231.988940][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5231.988940][ T254] inet6_addr_add+0x4f8/0xa40 [ 5231.988940][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5231.988940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5231.988940][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.988940][ T254] netlink_unicast+0x449/0x710 [ 5231.988940][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.988940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.988940][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.988940][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.988940][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.988940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5231.988940][ T254] [ 5231.991176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.991176][ T254] netdev_get_by_index+0x5e/0x80 [ 5231.991176][ T254] fib6_nh_init+0x3d8/0x1580 [ 5231.991176][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5231.991176][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5231.991176][ T254] ipv6_add_addr+0x411/0x2000 [ 5231.991176][ T254] inet6_addr_add+0x30e/0xa40 [ 5231.991176][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5231.991176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5231.991176][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.991176][ T254] netlink_unicast+0x449/0x710 [ 5231.991176][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.991176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.991176][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.991176][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.991176][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.991176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5231.991176][ T254] [ 5231.993427][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.993427][ T254] netdev_get_by_index+0x5e/0x80 [ 5231.993427][ T254] fib6_nh_init+0x3d8/0x1580 [ 5231.993427][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5231.993427][ T254] ip6_route_add+0x1c/0x140 [ 5231.993427][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5231.993427][ T254] addrconf_add_dev+0xe2/0x170 [ 5231.993427][ T254] inet6_addr_add+0x12f/0xa40 [ 5231.993427][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5231.993427][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5231.993427][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.993427][ T254] netlink_unicast+0x449/0x710 [ 5231.993427][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.993427][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.993427][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.993427][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.993427][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.993427][ T254] [ 5231.995621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.995621][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5231.995621][ T254] ipv6_find_idev+0x102/0x170 [ 5231.995621][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5231.995621][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5231.995621][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.995621][ T254] netlink_unicast+0x449/0x710 [ 5231.995621][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.995621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.995621][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.995621][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.995621][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.995621][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5231.995621][ T254] [ 5231.997352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5231.997352][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5231.997352][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5231.997352][ T254] ipv6_find_idev+0x102/0x170 [ 5231.997352][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5231.997352][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5231.997352][ T254] netlink_rcv_skb+0x130/0x360 [ 5231.997352][ T254] netlink_unicast+0x449/0x710 [ 5231.997352][ T254] netlink_sendmsg+0x723/0xbe0 [ 5231.997352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5231.997352][ T254] ___sys_sendmsg+0xee/0x170 [ 5231.997352][ T254] __sys_sendmsg+0xcd/0x170 [ 5231.997352][ T254] do_syscall_64+0xc6/0x1e0 [ 5231.997352][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5231.997352][ T254] [ 5242.247853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5242.248652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.248652][ T254] dst_init+0x84/0x4a0 [ 5242.248652][ T254] dst_alloc+0x97/0x150 [ 5242.248652][ T254] ip6_dst_alloc+0x23/0x90 [ 5242.248652][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5242.248652][ T254] ip6_pol_route+0x56f/0x840 [ 5242.248652][ T254] fib6_rule_lookup+0x334/0x630 [ 5242.248652][ T254] ip6_route_output_flags+0x259/0x480 [ 5242.248652][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5242.248652][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5242.248652][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.248652][ T254] netlink_unicast+0x449/0x710 [ 5242.248652][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.248652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.248652][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.248652][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.248652][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.248652][ T254] [ 5242.250845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.250845][ T254] netdev_get_by_index+0x5e/0x80 [ 5242.250845][ T254] fib6_nh_init+0x3d8/0x1580 [ 5242.250845][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5242.250845][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5242.250845][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5242.250845][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5242.250845][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5242.250845][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5242.250845][ T254] addrconf_dad_begin+0x310/0x670 [ 5242.250845][ T254] addrconf_dad_work+0x10b/0xab0 [ 5242.250845][ T254] process_one_work+0x84d/0x18a0 [ 5242.250845][ T254] worker_thread+0x587/0xd30 [ 5242.250845][ T254] kthread+0x28a/0x350 [ 5242.250845][ T254] ret_from_fork+0x31/0x70 [ 5242.250845][ T254] ret_from_fork_asm+0x1a/0x30 [ 5242.250845][ T254] [ 5242.252986][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.252986][ T254] netdev_get_by_index+0x5e/0x80 [ 5242.252986][ T254] fib6_nh_init+0x3d8/0x1580 [ 5242.252986][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5242.252986][ T254] ip6_route_add+0x1c/0x140 [ 5242.252986][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5242.252986][ T254] inet6_addr_add+0x4f8/0xa40 [ 5242.252986][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5242.252986][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5242.252986][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.252986][ T254] netlink_unicast+0x449/0x710 [ 5242.252986][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.252986][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.252986][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.252986][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.252986][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.252986][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5242.252986][ T254] [ 5242.255219][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.255219][ T254] netdev_get_by_index+0x5e/0x80 [ 5242.255219][ T254] fib6_nh_init+0x3d8/0x1580 [ 5242.255219][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5242.255219][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5242.255219][ T254] ipv6_add_addr+0x411/0x2000 [ 5242.255219][ T254] inet6_addr_add+0x30e/0xa40 [ 5242.255219][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5242.255219][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5242.255219][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.255219][ T254] netlink_unicast+0x449/0x710 [ 5242.255219][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.255219][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.255219][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.255219][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.255219][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.255219][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5242.255219][ T254] [ 5242.257449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.257449][ T254] netdev_get_by_index+0x5e/0x80 [ 5242.257449][ T254] fib6_nh_init+0x3d8/0x1580 [ 5242.257449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5242.257449][ T254] ip6_route_add+0x1c/0x140 [ 5242.257449][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5242.257449][ T254] addrconf_add_dev+0xe2/0x170 [ 5242.257449][ T254] inet6_addr_add+0x12f/0xa40 [ 5242.257449][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5242.257449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5242.257449][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.257449][ T254] netlink_unicast+0x449/0x710 [ 5242.257449][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.257449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.257449][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.257449][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.257449][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.257449][ T254] [ 5242.259653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.259653][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5242.259653][ T254] ipv6_find_idev+0x102/0x170 [ 5242.259653][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5242.259653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5242.259653][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.259653][ T254] netlink_unicast+0x449/0x710 [ 5242.259653][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.259653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.259653][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.259653][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.259653][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.259653][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5242.259653][ T254] [ 5242.261371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5242.261371][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5242.261371][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5242.261371][ T254] ipv6_find_idev+0x102/0x170 [ 5242.261371][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5242.261371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5242.261371][ T254] netlink_rcv_skb+0x130/0x360 [ 5242.261371][ T254] netlink_unicast+0x449/0x710 [ 5242.261371][ T254] netlink_sendmsg+0x723/0xbe0 [ 5242.261371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5242.261371][ T254] ___sys_sendmsg+0xee/0x170 [ 5242.261371][ T254] __sys_sendmsg+0xcd/0x170 [ 5242.261371][ T254] do_syscall_64+0xc6/0x1e0 [ 5242.261371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5242.261371][ T254] [ 5252.511872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5252.512343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.512343][ T254] dst_init+0x84/0x4a0 [ 5252.512343][ T254] dst_alloc+0x97/0x150 [ 5252.512343][ T254] ip6_dst_alloc+0x23/0x90 [ 5252.512343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5252.512343][ T254] ip6_pol_route+0x56f/0x840 [ 5252.512343][ T254] fib6_rule_lookup+0x334/0x630 [ 5252.512343][ T254] ip6_route_output_flags+0x259/0x480 [ 5252.512343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5252.512343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5252.512343][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.512343][ T254] netlink_unicast+0x449/0x710 [ 5252.512343][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.512343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.512343][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.512343][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.512343][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.512343][ T254] [ 5252.514545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.514545][ T254] netdev_get_by_index+0x5e/0x80 [ 5252.514545][ T254] fib6_nh_init+0x3d8/0x1580 [ 5252.514545][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5252.514545][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5252.514545][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5252.514545][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5252.514545][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5252.514545][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5252.514545][ T254] addrconf_dad_begin+0x310/0x670 [ 5252.514545][ T254] addrconf_dad_work+0x10b/0xab0 [ 5252.514545][ T254] process_one_work+0x84d/0x18a0 [ 5252.514545][ T254] worker_thread+0x587/0xd30 [ 5252.514545][ T254] kthread+0x28a/0x350 [ 5252.514545][ T254] ret_from_fork+0x31/0x70 [ 5252.514545][ T254] ret_from_fork_asm+0x1a/0x30 [ 5252.514545][ T254] [ 5252.516678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.516678][ T254] netdev_get_by_index+0x5e/0x80 [ 5252.516678][ T254] fib6_nh_init+0x3d8/0x1580 [ 5252.516678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5252.516678][ T254] ip6_route_add+0x1c/0x140 [ 5252.516678][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5252.516678][ T254] inet6_addr_add+0x4f8/0xa40 [ 5252.516678][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5252.516678][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5252.516678][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.516678][ T254] netlink_unicast+0x449/0x710 [ 5252.516678][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.516678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.516678][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.516678][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.516678][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.516678][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5252.516678][ T254] [ 5252.518913][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.518913][ T254] netdev_get_by_index+0x5e/0x80 [ 5252.518913][ T254] fib6_nh_init+0x3d8/0x1580 [ 5252.518913][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5252.518913][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5252.518913][ T254] ipv6_add_addr+0x411/0x2000 [ 5252.518913][ T254] inet6_addr_add+0x30e/0xa40 [ 5252.518913][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5252.518913][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5252.518913][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.518913][ T254] netlink_unicast+0x449/0x710 [ 5252.518913][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.518913][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.518913][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.518913][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.518913][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.518913][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5252.518913][ T254] [ 5252.521150][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.521150][ T254] netdev_get_by_index+0x5e/0x80 [ 5252.521150][ T254] fib6_nh_init+0x3d8/0x1580 [ 5252.521150][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5252.521150][ T254] ip6_route_add+0x1c/0x140 [ 5252.521150][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5252.521150][ T254] addrconf_add_dev+0xe2/0x170 [ 5252.521150][ T254] inet6_addr_add+0x12f/0xa40 [ 5252.521150][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5252.521150][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5252.521150][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.521150][ T254] netlink_unicast+0x449/0x710 [ 5252.521150][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.521150][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.521150][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.521150][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.521150][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.521150][ T254] [ 5252.523343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.523343][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5252.523343][ T254] ipv6_find_idev+0x102/0x170 [ 5252.523343][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5252.523343][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5252.523343][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.523343][ T254] netlink_unicast+0x449/0x710 [ 5252.523343][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.523343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.523343][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.523343][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.523343][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.523343][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5252.523343][ T254] [ 5252.525064][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5252.525064][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5252.525064][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5252.525064][ T254] ipv6_find_idev+0x102/0x170 [ 5252.525064][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5252.525064][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5252.525064][ T254] netlink_rcv_skb+0x130/0x360 [ 5252.525064][ T254] netlink_unicast+0x449/0x710 [ 5252.525064][ T254] netlink_sendmsg+0x723/0xbe0 [ 5252.525064][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5252.525064][ T254] ___sys_sendmsg+0xee/0x170 [ 5252.525064][ T254] __sys_sendmsg+0xcd/0x170 [ 5252.525064][ T254] do_syscall_64+0xc6/0x1e0 [ 5252.525064][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5252.525064][ T254] [ 5262.775853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5262.776556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.776556][ T254] dst_init+0x84/0x4a0 [ 5262.776556][ T254] dst_alloc+0x97/0x150 [ 5262.776556][ T254] ip6_dst_alloc+0x23/0x90 [ 5262.776556][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5262.776556][ T254] ip6_pol_route+0x56f/0x840 [ 5262.776556][ T254] fib6_rule_lookup+0x334/0x630 [ 5262.776556][ T254] ip6_route_output_flags+0x259/0x480 [ 5262.776556][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5262.776556][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5262.776556][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.776556][ T254] netlink_unicast+0x449/0x710 [ 5262.776556][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.776556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.776556][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.776556][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.776556][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.776556][ T254] [ 5262.778784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.778784][ T254] netdev_get_by_index+0x5e/0x80 [ 5262.778784][ T254] fib6_nh_init+0x3d8/0x1580 [ 5262.778784][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5262.778784][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5262.778784][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5262.778784][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5262.778784][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5262.778784][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5262.778784][ T254] addrconf_dad_begin+0x310/0x670 [ 5262.778784][ T254] addrconf_dad_work+0x10b/0xab0 [ 5262.778784][ T254] process_one_work+0x84d/0x18a0 [ 5262.778784][ T254] worker_thread+0x587/0xd30 [ 5262.778784][ T254] kthread+0x28a/0x350 [ 5262.778784][ T254] ret_from_fork+0x31/0x70 [ 5262.778784][ T254] ret_from_fork_asm+0x1a/0x30 [ 5262.778784][ T254] [ 5262.780968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.780968][ T254] netdev_get_by_index+0x5e/0x80 [ 5262.780968][ T254] fib6_nh_init+0x3d8/0x1580 [ 5262.780968][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5262.780968][ T254] ip6_route_add+0x1c/0x140 [ 5262.780968][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5262.780968][ T254] inet6_addr_add+0x4f8/0xa40 [ 5262.780968][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5262.780968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5262.780968][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.780968][ T254] netlink_unicast+0x449/0x710 [ 5262.780968][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.780968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.780968][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.780968][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.780968][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.780968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5262.780968][ T254] [ 5262.783246][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.783246][ T254] netdev_get_by_index+0x5e/0x80 [ 5262.783246][ T254] fib6_nh_init+0x3d8/0x1580 [ 5262.783246][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5262.783246][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5262.783246][ T254] ipv6_add_addr+0x411/0x2000 [ 5262.783246][ T254] inet6_addr_add+0x30e/0xa40 [ 5262.783246][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5262.783246][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5262.783246][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.783246][ T254] netlink_unicast+0x449/0x710 [ 5262.783246][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.783246][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.783246][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.783246][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.783246][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.783246][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5262.783246][ T254] [ 5262.785516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.785516][ T254] netdev_get_by_index+0x5e/0x80 [ 5262.785516][ T254] fib6_nh_init+0x3d8/0x1580 [ 5262.785516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5262.785516][ T254] ip6_route_add+0x1c/0x140 [ 5262.785516][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5262.785516][ T254] addrconf_add_dev+0xe2/0x170 [ 5262.785516][ T254] inet6_addr_add+0x12f/0xa40 [ 5262.785516][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5262.785516][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5262.785516][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.785516][ T254] netlink_unicast+0x449/0x710 [ 5262.785516][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.785516][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.785516][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.785516][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.785516][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.785516][ T254] [ 5262.787713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.787713][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5262.787713][ T254] ipv6_find_idev+0x102/0x170 [ 5262.787713][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5262.787713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5262.787713][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.787713][ T254] netlink_unicast+0x449/0x710 [ 5262.787713][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.787713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.787713][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.787713][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.787713][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.787713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5262.787713][ T254] [ 5262.789437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5262.789437][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5262.789437][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5262.789437][ T254] ipv6_find_idev+0x102/0x170 [ 5262.789437][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5262.789437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5262.789437][ T254] netlink_rcv_skb+0x130/0x360 [ 5262.789437][ T254] netlink_unicast+0x449/0x710 [ 5262.789437][ T254] netlink_sendmsg+0x723/0xbe0 [ 5262.789437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5262.789437][ T254] ___sys_sendmsg+0xee/0x170 [ 5262.789437][ T254] __sys_sendmsg+0xcd/0x170 [ 5262.789437][ T254] do_syscall_64+0xc6/0x1e0 [ 5262.789437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5262.789437][ T254] [ 5272.840046][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5272.840636][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.840636][ T254] dst_init+0x84/0x4a0 [ 5272.840636][ T254] dst_alloc+0x97/0x150 [ 5272.840636][ T254] ip6_dst_alloc+0x23/0x90 [ 5272.840636][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5272.840636][ T254] ip6_pol_route+0x56f/0x840 [ 5272.840636][ T254] fib6_rule_lookup+0x334/0x630 [ 5272.840636][ T254] ip6_route_output_flags+0x259/0x480 [ 5272.840636][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5272.840636][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5272.840636][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.840636][ T254] netlink_unicast+0x449/0x710 [ 5272.840636][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.840636][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.840636][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.840636][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.840636][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.840636][ T254] [ 5272.842873][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.842873][ T254] netdev_get_by_index+0x5e/0x80 [ 5272.842873][ T254] fib6_nh_init+0x3d8/0x1580 [ 5272.842873][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5272.842873][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5272.842873][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5272.842873][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5272.842873][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5272.842873][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5272.842873][ T254] addrconf_dad_begin+0x310/0x670 [ 5272.842873][ T254] addrconf_dad_work+0x10b/0xab0 [ 5272.842873][ T254] process_one_work+0x84d/0x18a0 [ 5272.842873][ T254] worker_thread+0x587/0xd30 [ 5272.842873][ T254] kthread+0x28a/0x350 [ 5272.842873][ T254] ret_from_fork+0x31/0x70 [ 5272.842873][ T254] ret_from_fork_asm+0x1a/0x30 [ 5272.842873][ T254] [ 5272.845018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.845018][ T254] netdev_get_by_index+0x5e/0x80 [ 5272.845018][ T254] fib6_nh_init+0x3d8/0x1580 [ 5272.845018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5272.845018][ T254] ip6_route_add+0x1c/0x140 [ 5272.845018][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5272.845018][ T254] inet6_addr_add+0x4f8/0xa40 [ 5272.845018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5272.845018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5272.845018][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.845018][ T254] netlink_unicast+0x449/0x710 [ 5272.845018][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.845018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.845018][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.845018][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.845018][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.845018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5272.845018][ T254] [ 5272.847271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.847271][ T254] netdev_get_by_index+0x5e/0x80 [ 5272.847271][ T254] fib6_nh_init+0x3d8/0x1580 [ 5272.847271][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5272.847271][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5272.847271][ T254] ipv6_add_addr+0x411/0x2000 [ 5272.847271][ T254] inet6_addr_add+0x30e/0xa40 [ 5272.847271][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5272.847271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5272.847271][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.847271][ T254] netlink_unicast+0x449/0x710 [ 5272.847271][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.847271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.847271][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.847271][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.847271][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.847271][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5272.847271][ T254] [ 5272.849554][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.849554][ T254] netdev_get_by_index+0x5e/0x80 [ 5272.849554][ T254] fib6_nh_init+0x3d8/0x1580 [ 5272.849554][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5272.849554][ T254] ip6_route_add+0x1c/0x140 [ 5272.849554][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5272.849554][ T254] addrconf_add_dev+0xe2/0x170 [ 5272.849554][ T254] inet6_addr_add+0x12f/0xa40 [ 5272.849554][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5272.849554][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5272.849554][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.849554][ T254] netlink_unicast+0x449/0x710 [ 5272.849554][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.849554][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.849554][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.849554][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.849554][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.849554][ T254] [ 5272.851761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.851761][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5272.851761][ T254] ipv6_find_idev+0x102/0x170 [ 5272.851761][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5272.851761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5272.851761][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.851761][ T254] netlink_unicast+0x449/0x710 [ 5272.851761][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.851761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.851761][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.851761][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.851761][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.851761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5272.851761][ T254] [ 5272.853488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5272.853488][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5272.853488][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5272.853488][ T254] ipv6_find_idev+0x102/0x170 [ 5272.853488][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5272.853488][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5272.853488][ T254] netlink_rcv_skb+0x130/0x360 [ 5272.853488][ T254] netlink_unicast+0x449/0x710 [ 5272.853488][ T254] netlink_sendmsg+0x723/0xbe0 [ 5272.853488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5272.853488][ T254] ___sys_sendmsg+0xee/0x170 [ 5272.853488][ T254] __sys_sendmsg+0xcd/0x170 [ 5272.853488][ T254] do_syscall_64+0xc6/0x1e0 [ 5272.853488][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5272.853488][ T254] [ 5283.095781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5283.096272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.096272][ T254] dst_init+0x84/0x4a0 [ 5283.096272][ T254] dst_alloc+0x97/0x150 [ 5283.096272][ T254] ip6_dst_alloc+0x23/0x90 [ 5283.096272][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5283.096272][ T254] ip6_pol_route+0x56f/0x840 [ 5283.096272][ T254] fib6_rule_lookup+0x334/0x630 [ 5283.096272][ T254] ip6_route_output_flags+0x259/0x480 [ 5283.096272][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5283.096272][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5283.096272][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.096272][ T254] netlink_unicast+0x449/0x710 [ 5283.096272][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.096272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.096272][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.096272][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.096272][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.096272][ T254] [ 5283.098470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.098470][ T254] netdev_get_by_index+0x5e/0x80 [ 5283.098470][ T254] fib6_nh_init+0x3d8/0x1580 [ 5283.098470][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5283.098470][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5283.098470][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5283.098470][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5283.098470][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5283.098470][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5283.098470][ T254] addrconf_dad_begin+0x310/0x670 [ 5283.098470][ T254] addrconf_dad_work+0x10b/0xab0 [ 5283.098470][ T254] process_one_work+0x84d/0x18a0 [ 5283.098470][ T254] worker_thread+0x587/0xd30 [ 5283.098470][ T254] kthread+0x28a/0x350 [ 5283.098470][ T254] ret_from_fork+0x31/0x70 [ 5283.098470][ T254] ret_from_fork_asm+0x1a/0x30 [ 5283.098470][ T254] [ 5283.100626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.100626][ T254] netdev_get_by_index+0x5e/0x80 [ 5283.100626][ T254] fib6_nh_init+0x3d8/0x1580 [ 5283.100626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5283.100626][ T254] ip6_route_add+0x1c/0x140 [ 5283.100626][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5283.100626][ T254] inet6_addr_add+0x4f8/0xa40 [ 5283.100626][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5283.100626][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5283.100626][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.100626][ T254] netlink_unicast+0x449/0x710 [ 5283.100626][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.100626][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.100626][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.100626][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.100626][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.100626][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5283.100626][ T254] [ 5283.102901][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.102901][ T254] netdev_get_by_index+0x5e/0x80 [ 5283.102901][ T254] fib6_nh_init+0x3d8/0x1580 [ 5283.102901][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5283.102901][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5283.102901][ T254] ipv6_add_addr+0x411/0x2000 [ 5283.102901][ T254] inet6_addr_add+0x30e/0xa40 [ 5283.102901][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5283.102901][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5283.102901][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.102901][ T254] netlink_unicast+0x449/0x710 [ 5283.102901][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.102901][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.102901][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.102901][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.102901][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.102901][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5283.102901][ T254] [ 5283.105171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.105171][ T254] netdev_get_by_index+0x5e/0x80 [ 5283.105171][ T254] fib6_nh_init+0x3d8/0x1580 [ 5283.105171][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5283.105171][ T254] ip6_route_add+0x1c/0x140 [ 5283.105171][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5283.105171][ T254] addrconf_add_dev+0xe2/0x170 [ 5283.105171][ T254] inet6_addr_add+0x12f/0xa40 [ 5283.105171][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5283.105171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5283.105171][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.105171][ T254] netlink_unicast+0x449/0x710 [ 5283.105171][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.105171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.105171][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.105171][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.105171][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.105171][ T254] [ 5283.107410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.107410][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5283.107410][ T254] ipv6_find_idev+0x102/0x170 [ 5283.107410][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5283.107410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5283.107410][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.107410][ T254] netlink_unicast+0x449/0x710 [ 5283.107410][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.107410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.107410][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.107410][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.107410][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.107410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5283.107410][ T254] [ 5283.109135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5283.109135][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5283.109135][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5283.109135][ T254] ipv6_find_idev+0x102/0x170 [ 5283.109135][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5283.109135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5283.109135][ T254] netlink_rcv_skb+0x130/0x360 [ 5283.109135][ T254] netlink_unicast+0x449/0x710 [ 5283.109135][ T254] netlink_sendmsg+0x723/0xbe0 [ 5283.109135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5283.109135][ T254] ___sys_sendmsg+0xee/0x170 [ 5283.109135][ T254] __sys_sendmsg+0xcd/0x170 [ 5283.109135][ T254] do_syscall_64+0xc6/0x1e0 [ 5283.109135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5283.109135][ T254] [ 5293.351863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5293.352801][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.352801][ T254] dst_init+0x84/0x4a0 [ 5293.352801][ T254] dst_alloc+0x97/0x150 [ 5293.352801][ T254] ip6_dst_alloc+0x23/0x90 [ 5293.352801][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5293.352801][ T254] ip6_pol_route+0x56f/0x840 [ 5293.352801][ T254] fib6_rule_lookup+0x334/0x630 [ 5293.352801][ T254] ip6_route_output_flags+0x259/0x480 [ 5293.352801][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5293.352801][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5293.352801][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.352801][ T254] netlink_unicast+0x449/0x710 [ 5293.352801][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.352801][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.352801][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.352801][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.352801][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.352801][ T254] [ 5293.355018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.355018][ T254] netdev_get_by_index+0x5e/0x80 [ 5293.355018][ T254] fib6_nh_init+0x3d8/0x1580 [ 5293.355018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5293.355018][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5293.355018][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5293.355018][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5293.355018][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5293.355018][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5293.355018][ T254] addrconf_dad_begin+0x310/0x670 [ 5293.355018][ T254] addrconf_dad_work+0x10b/0xab0 [ 5293.355018][ T254] process_one_work+0x84d/0x18a0 [ 5293.355018][ T254] worker_thread+0x587/0xd30 [ 5293.355018][ T254] kthread+0x28a/0x350 [ 5293.355018][ T254] ret_from_fork+0x31/0x70 [ 5293.355018][ T254] ret_from_fork_asm+0x1a/0x30 [ 5293.355018][ T254] [ 5293.357214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.357214][ T254] netdev_get_by_index+0x5e/0x80 [ 5293.357214][ T254] fib6_nh_init+0x3d8/0x1580 [ 5293.357214][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5293.357214][ T254] ip6_route_add+0x1c/0x140 [ 5293.357214][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5293.357214][ T254] inet6_addr_add+0x4f8/0xa40 [ 5293.357214][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5293.357214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5293.357214][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.357214][ T254] netlink_unicast+0x449/0x710 [ 5293.357214][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.357214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.357214][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.357214][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.357214][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.357214][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5293.357214][ T254] [ 5293.359454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.359454][ T254] netdev_get_by_index+0x5e/0x80 [ 5293.359454][ T254] fib6_nh_init+0x3d8/0x1580 [ 5293.359454][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5293.359454][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5293.359454][ T254] ipv6_add_addr+0x411/0x2000 [ 5293.359454][ T254] inet6_addr_add+0x30e/0xa40 [ 5293.359454][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5293.359454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5293.359454][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.359454][ T254] netlink_unicast+0x449/0x710 [ 5293.359454][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.359454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.359454][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.359454][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.359454][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.359454][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5293.359454][ T254] [ 5293.361694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.361694][ T254] netdev_get_by_index+0x5e/0x80 [ 5293.361694][ T254] fib6_nh_init+0x3d8/0x1580 [ 5293.361694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5293.361694][ T254] ip6_route_add+0x1c/0x140 [ 5293.361694][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5293.361694][ T254] addrconf_add_dev+0xe2/0x170 [ 5293.361694][ T254] inet6_addr_add+0x12f/0xa40 [ 5293.361694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5293.361694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5293.361694][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.361694][ T254] netlink_unicast+0x449/0x710 [ 5293.361694][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.361694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.361694][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.361694][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.361694][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.361694][ T254] [ 5293.363901][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.363901][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5293.363901][ T254] ipv6_find_idev+0x102/0x170 [ 5293.363901][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5293.363901][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5293.363901][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.363901][ T254] netlink_unicast+0x449/0x710 [ 5293.363901][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.363901][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.363901][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.363901][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.363901][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.363901][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5293.363901][ T254] [ 5293.365622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5293.365622][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5293.365622][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5293.365622][ T254] ipv6_find_idev+0x102/0x170 [ 5293.365622][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5293.365622][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5293.365622][ T254] netlink_rcv_skb+0x130/0x360 [ 5293.365622][ T254] netlink_unicast+0x449/0x710 [ 5293.365622][ T254] netlink_sendmsg+0x723/0xbe0 [ 5293.365622][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5293.365622][ T254] ___sys_sendmsg+0xee/0x170 [ 5293.365622][ T254] __sys_sendmsg+0xcd/0x170 [ 5293.365622][ T254] do_syscall_64+0xc6/0x1e0 [ 5293.365622][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5293.365622][ T254] [ 5303.479918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5303.480617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.480617][ T254] dst_init+0x84/0x4a0 [ 5303.480617][ T254] dst_alloc+0x97/0x150 [ 5303.480617][ T254] ip6_dst_alloc+0x23/0x90 [ 5303.480617][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5303.480617][ T254] ip6_pol_route+0x56f/0x840 [ 5303.480617][ T254] fib6_rule_lookup+0x334/0x630 [ 5303.480617][ T254] ip6_route_output_flags+0x259/0x480 [ 5303.480617][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5303.480617][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5303.480617][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.480617][ T254] netlink_unicast+0x449/0x710 [ 5303.480617][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.480617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.480617][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.480617][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.480617][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.480617][ T254] [ 5303.482878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.482878][ T254] netdev_get_by_index+0x5e/0x80 [ 5303.482878][ T254] fib6_nh_init+0x3d8/0x1580 [ 5303.482878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5303.482878][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5303.482878][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5303.482878][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5303.482878][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5303.482878][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5303.482878][ T254] addrconf_dad_begin+0x310/0x670 [ 5303.482878][ T254] addrconf_dad_work+0x10b/0xab0 [ 5303.482878][ T254] process_one_work+0x84d/0x18a0 [ 5303.482878][ T254] worker_thread+0x587/0xd30 [ 5303.482878][ T254] kthread+0x28a/0x350 [ 5303.482878][ T254] ret_from_fork+0x31/0x70 [ 5303.482878][ T254] ret_from_fork_asm+0x1a/0x30 [ 5303.482878][ T254] [ 5303.485230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.485230][ T254] netdev_get_by_index+0x5e/0x80 [ 5303.485230][ T254] fib6_nh_init+0x3d8/0x1580 [ 5303.485230][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5303.485230][ T254] ip6_route_add+0x1c/0x140 [ 5303.485230][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5303.485230][ T254] inet6_addr_add+0x4f8/0xa40 [ 5303.485230][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5303.485230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5303.485230][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.485230][ T254] netlink_unicast+0x449/0x710 [ 5303.485230][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.485230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.485230][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.485230][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.485230][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.485230][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5303.485230][ T254] [ 5303.487704][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.487704][ T254] netdev_get_by_index+0x5e/0x80 [ 5303.487704][ T254] fib6_nh_init+0x3d8/0x1580 [ 5303.487704][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5303.487704][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5303.487704][ T254] ipv6_add_addr+0x411/0x2000 [ 5303.487704][ T254] inet6_addr_add+0x30e/0xa40 [ 5303.487704][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5303.487704][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5303.487704][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.487704][ T254] netlink_unicast+0x449/0x710 [ 5303.487704][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.487704][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.487704][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.487704][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.487704][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.487704][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5303.487704][ T254] [ 5303.489954][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.489954][ T254] netdev_get_by_index+0x5e/0x80 [ 5303.489954][ T254] fib6_nh_init+0x3d8/0x1580 [ 5303.489954][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5303.489954][ T254] ip6_route_add+0x1c/0x140 [ 5303.489954][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5303.489954][ T254] addrconf_add_dev+0xe2/0x170 [ 5303.489954][ T254] inet6_addr_add+0x12f/0xa40 [ 5303.489954][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5303.489954][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5303.489954][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.489954][ T254] netlink_unicast+0x449/0x710 [ 5303.489954][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.489954][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.489954][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.489954][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.489954][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.489954][ T254] [ 5303.492159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.492159][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5303.492159][ T254] ipv6_find_idev+0x102/0x170 [ 5303.492159][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5303.492159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5303.492159][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.492159][ T254] netlink_unicast+0x449/0x710 [ 5303.492159][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.492159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.492159][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.492159][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.492159][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.492159][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5303.492159][ T254] [ 5303.493893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5303.493893][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5303.493893][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5303.493893][ T254] ipv6_find_idev+0x102/0x170 [ 5303.493893][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5303.493893][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5303.493893][ T254] netlink_rcv_skb+0x130/0x360 [ 5303.493893][ T254] netlink_unicast+0x449/0x710 [ 5303.493893][ T254] netlink_sendmsg+0x723/0xbe0 [ 5303.493893][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5303.493893][ T254] ___sys_sendmsg+0xee/0x170 [ 5303.493893][ T254] __sys_sendmsg+0xcd/0x170 [ 5303.493893][ T254] do_syscall_64+0xc6/0x1e0 [ 5303.493893][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5303.493893][ T254] [ 5313.735923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5313.736716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.736716][ T254] dst_init+0x84/0x4a0 [ 5313.736716][ T254] dst_alloc+0x97/0x150 [ 5313.736716][ T254] ip6_dst_alloc+0x23/0x90 [ 5313.736716][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5313.736716][ T254] ip6_pol_route+0x56f/0x840 [ 5313.736716][ T254] fib6_rule_lookup+0x334/0x630 [ 5313.736716][ T254] ip6_route_output_flags+0x259/0x480 [ 5313.736716][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5313.736716][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5313.736716][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.736716][ T254] netlink_unicast+0x449/0x710 [ 5313.736716][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.736716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.736716][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.736716][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.736716][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.736716][ T254] [ 5313.738957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.738957][ T254] netdev_get_by_index+0x5e/0x80 [ 5313.738957][ T254] fib6_nh_init+0x3d8/0x1580 [ 5313.738957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5313.738957][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5313.738957][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5313.738957][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5313.738957][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5313.738957][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5313.738957][ T254] addrconf_dad_begin+0x310/0x670 [ 5313.738957][ T254] addrconf_dad_work+0x10b/0xab0 [ 5313.738957][ T254] process_one_work+0x84d/0x18a0 [ 5313.738957][ T254] worker_thread+0x587/0xd30 [ 5313.738957][ T254] kthread+0x28a/0x350 [ 5313.738957][ T254] ret_from_fork+0x31/0x70 [ 5313.738957][ T254] ret_from_fork_asm+0x1a/0x30 [ 5313.738957][ T254] [ 5313.741100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.741100][ T254] netdev_get_by_index+0x5e/0x80 [ 5313.741100][ T254] fib6_nh_init+0x3d8/0x1580 [ 5313.741100][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5313.741100][ T254] ip6_route_add+0x1c/0x140 [ 5313.741100][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5313.741100][ T254] inet6_addr_add+0x4f8/0xa40 [ 5313.741100][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5313.741100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5313.741100][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.741100][ T254] netlink_unicast+0x449/0x710 [ 5313.741100][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.741100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.741100][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.741100][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.741100][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.741100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5313.741100][ T254] [ 5313.743430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.743430][ T254] netdev_get_by_index+0x5e/0x80 [ 5313.743430][ T254] fib6_nh_init+0x3d8/0x1580 [ 5313.743430][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5313.743430][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5313.743430][ T254] ipv6_add_addr+0x411/0x2000 [ 5313.743430][ T254] inet6_addr_add+0x30e/0xa40 [ 5313.743430][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5313.743430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5313.743430][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.743430][ T254] netlink_unicast+0x449/0x710 [ 5313.743430][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.743430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.743430][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.743430][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.743430][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.743430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5313.743430][ T254] [ 5313.745861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.745861][ T254] netdev_get_by_index+0x5e/0x80 [ 5313.745861][ T254] fib6_nh_init+0x3d8/0x1580 [ 5313.745861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5313.745861][ T254] ip6_route_add+0x1c/0x140 [ 5313.745861][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5313.745861][ T254] addrconf_add_dev+0xe2/0x170 [ 5313.745861][ T254] inet6_addr_add+0x12f/0xa40 [ 5313.745861][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5313.745861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5313.745861][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.745861][ T254] netlink_unicast+0x449/0x710 [ 5313.745861][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.745861][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.745861][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.745861][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.745861][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.745861][ T254] [ 5313.748262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.748262][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5313.748262][ T254] ipv6_find_idev+0x102/0x170 [ 5313.748262][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5313.748262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5313.748262][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.748262][ T254] netlink_unicast+0x449/0x710 [ 5313.748262][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.748262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.748262][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.748262][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.748262][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.748262][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5313.748262][ T254] [ 5313.750154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5313.750154][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5313.750154][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5313.750154][ T254] ipv6_find_idev+0x102/0x170 [ 5313.750154][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5313.750154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5313.750154][ T254] netlink_rcv_skb+0x130/0x360 [ 5313.750154][ T254] netlink_unicast+0x449/0x710 [ 5313.750154][ T254] netlink_sendmsg+0x723/0xbe0 [ 5313.750154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5313.750154][ T254] ___sys_sendmsg+0xee/0x170 [ 5313.750154][ T254] __sys_sendmsg+0xcd/0x170 [ 5313.750154][ T254] do_syscall_64+0xc6/0x1e0 [ 5313.750154][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5313.750154][ T254] [ 5323.967848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5323.968297][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.968297][ T254] dst_init+0x84/0x4a0 [ 5323.968297][ T254] dst_alloc+0x97/0x150 [ 5323.968297][ T254] ip6_dst_alloc+0x23/0x90 [ 5323.968297][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5323.968297][ T254] ip6_pol_route+0x56f/0x840 [ 5323.968297][ T254] fib6_rule_lookup+0x334/0x630 [ 5323.968297][ T254] ip6_route_output_flags+0x259/0x480 [ 5323.968297][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5323.968297][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5323.968297][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.968297][ T254] netlink_unicast+0x449/0x710 [ 5323.968297][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.968297][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.968297][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.968297][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.968297][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.968297][ T254] [ 5323.970673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.970673][ T254] netdev_get_by_index+0x5e/0x80 [ 5323.970673][ T254] fib6_nh_init+0x3d8/0x1580 [ 5323.970673][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5323.970673][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5323.970673][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5323.970673][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5323.970673][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5323.970673][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5323.970673][ T254] addrconf_dad_begin+0x310/0x670 [ 5323.970673][ T254] addrconf_dad_work+0x10b/0xab0 [ 5323.970673][ T254] process_one_work+0x84d/0x18a0 [ 5323.970673][ T254] worker_thread+0x587/0xd30 [ 5323.970673][ T254] kthread+0x28a/0x350 [ 5323.970673][ T254] ret_from_fork+0x31/0x70 [ 5323.970673][ T254] ret_from_fork_asm+0x1a/0x30 [ 5323.970673][ T254] [ 5323.972982][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.972982][ T254] netdev_get_by_index+0x5e/0x80 [ 5323.972982][ T254] fib6_nh_init+0x3d8/0x1580 [ 5323.972982][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5323.972982][ T254] ip6_route_add+0x1c/0x140 [ 5323.972982][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5323.972982][ T254] inet6_addr_add+0x4f8/0xa40 [ 5323.972982][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5323.972982][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5323.972982][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.972982][ T254] netlink_unicast+0x449/0x710 [ 5323.972982][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.972982][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.972982][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.972982][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.972982][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.972982][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5323.972982][ T254] [ 5323.975222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.975222][ T254] netdev_get_by_index+0x5e/0x80 [ 5323.975222][ T254] fib6_nh_init+0x3d8/0x1580 [ 5323.975222][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5323.975222][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5323.975222][ T254] ipv6_add_addr+0x411/0x2000 [ 5323.975222][ T254] inet6_addr_add+0x30e/0xa40 [ 5323.975222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5323.975222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5323.975222][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.975222][ T254] netlink_unicast+0x449/0x710 [ 5323.975222][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.975222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.975222][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.975222][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.975222][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.975222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5323.975222][ T254] [ 5323.977463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.977463][ T254] netdev_get_by_index+0x5e/0x80 [ 5323.977463][ T254] fib6_nh_init+0x3d8/0x1580 [ 5323.977463][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5323.977463][ T254] ip6_route_add+0x1c/0x140 [ 5323.977463][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5323.977463][ T254] addrconf_add_dev+0xe2/0x170 [ 5323.977463][ T254] inet6_addr_add+0x12f/0xa40 [ 5323.977463][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5323.977463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5323.977463][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.977463][ T254] netlink_unicast+0x449/0x710 [ 5323.977463][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.977463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.977463][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.977463][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.977463][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.977463][ T254] [ 5323.979656][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.979656][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5323.979656][ T254] ipv6_find_idev+0x102/0x170 [ 5323.979656][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5323.979656][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5323.979656][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.979656][ T254] netlink_unicast+0x449/0x710 [ 5323.979656][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.979656][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.979656][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.979656][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.979656][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.979656][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5323.979656][ T254] [ 5323.981381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5323.981381][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5323.981381][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5323.981381][ T254] ipv6_find_idev+0x102/0x170 [ 5323.981381][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5323.981381][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5323.981381][ T254] netlink_rcv_skb+0x130/0x360 [ 5323.981381][ T254] netlink_unicast+0x449/0x710 [ 5323.981381][ T254] netlink_sendmsg+0x723/0xbe0 [ 5323.981381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5323.981381][ T254] ___sys_sendmsg+0xee/0x170 [ 5323.981381][ T254] __sys_sendmsg+0xcd/0x170 [ 5323.981381][ T254] do_syscall_64+0xc6/0x1e0 [ 5323.981381][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5323.981381][ T254] [ 5334.223877][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5334.224850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.224850][ T254] dst_init+0x84/0x4a0 [ 5334.224850][ T254] dst_alloc+0x97/0x150 [ 5334.224850][ T254] ip6_dst_alloc+0x23/0x90 [ 5334.224850][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5334.224850][ T254] ip6_pol_route+0x56f/0x840 [ 5334.224850][ T254] fib6_rule_lookup+0x334/0x630 [ 5334.224850][ T254] ip6_route_output_flags+0x259/0x480 [ 5334.224850][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5334.224850][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5334.224850][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.224850][ T254] netlink_unicast+0x449/0x710 [ 5334.224850][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.224850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.224850][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.224850][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.224850][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.224850][ T254] [ 5334.227111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.227111][ T254] netdev_get_by_index+0x5e/0x80 [ 5334.227111][ T254] fib6_nh_init+0x3d8/0x1580 [ 5334.227111][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5334.227111][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5334.227111][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5334.227111][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5334.227111][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5334.227111][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5334.227111][ T254] addrconf_dad_begin+0x310/0x670 [ 5334.227111][ T254] addrconf_dad_work+0x10b/0xab0 [ 5334.227111][ T254] process_one_work+0x84d/0x18a0 [ 5334.227111][ T254] worker_thread+0x587/0xd30 [ 5334.227111][ T254] kthread+0x28a/0x350 [ 5334.227111][ T254] ret_from_fork+0x31/0x70 [ 5334.227111][ T254] ret_from_fork_asm+0x1a/0x30 [ 5334.227111][ T254] [ 5334.229302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.229302][ T254] netdev_get_by_index+0x5e/0x80 [ 5334.229302][ T254] fib6_nh_init+0x3d8/0x1580 [ 5334.229302][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5334.229302][ T254] ip6_route_add+0x1c/0x140 [ 5334.229302][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5334.229302][ T254] inet6_addr_add+0x4f8/0xa40 [ 5334.229302][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5334.229302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5334.229302][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.229302][ T254] netlink_unicast+0x449/0x710 [ 5334.229302][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.229302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.229302][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.229302][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.229302][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.229302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5334.229302][ T254] [ 5334.231590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.231590][ T254] netdev_get_by_index+0x5e/0x80 [ 5334.231590][ T254] fib6_nh_init+0x3d8/0x1580 [ 5334.231590][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5334.231590][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5334.231590][ T254] ipv6_add_addr+0x411/0x2000 [ 5334.231590][ T254] inet6_addr_add+0x30e/0xa40 [ 5334.231590][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5334.231590][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5334.231590][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.231590][ T254] netlink_unicast+0x449/0x710 [ 5334.231590][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.231590][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.231590][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.231590][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.231590][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.231590][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5334.231590][ T254] [ 5334.233835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.233835][ T254] netdev_get_by_index+0x5e/0x80 [ 5334.233835][ T254] fib6_nh_init+0x3d8/0x1580 [ 5334.233835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5334.233835][ T254] ip6_route_add+0x1c/0x140 [ 5334.233835][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5334.233835][ T254] addrconf_add_dev+0xe2/0x170 [ 5334.233835][ T254] inet6_addr_add+0x12f/0xa40 [ 5334.233835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5334.233835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5334.233835][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.233835][ T254] netlink_unicast+0x449/0x710 [ 5334.233835][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.233835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.233835][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.233835][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.233835][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.233835][ T254] [ 5334.236059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.236059][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5334.236059][ T254] ipv6_find_idev+0x102/0x170 [ 5334.236059][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5334.236059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5334.236059][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.236059][ T254] netlink_unicast+0x449/0x710 [ 5334.236059][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.236059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.236059][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.236059][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.236059][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.236059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5334.236059][ T254] [ 5334.237778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5334.237778][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5334.237778][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5334.237778][ T254] ipv6_find_idev+0x102/0x170 [ 5334.237778][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5334.237778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5334.237778][ T254] netlink_rcv_skb+0x130/0x360 [ 5334.237778][ T254] netlink_unicast+0x449/0x710 [ 5334.237778][ T254] netlink_sendmsg+0x723/0xbe0 [ 5334.237778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5334.237778][ T254] ___sys_sendmsg+0xee/0x170 [ 5334.237778][ T254] __sys_sendmsg+0xcd/0x170 [ 5334.237778][ T254] do_syscall_64+0xc6/0x1e0 [ 5334.237778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5334.237778][ T254] [ 5344.479924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5344.480846][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.480846][ T254] dst_init+0x84/0x4a0 [ 5344.480846][ T254] dst_alloc+0x97/0x150 [ 5344.480846][ T254] ip6_dst_alloc+0x23/0x90 [ 5344.480846][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5344.480846][ T254] ip6_pol_route+0x56f/0x840 [ 5344.480846][ T254] fib6_rule_lookup+0x334/0x630 [ 5344.480846][ T254] ip6_route_output_flags+0x259/0x480 [ 5344.480846][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5344.480846][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5344.480846][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.480846][ T254] netlink_unicast+0x449/0x710 [ 5344.480846][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.480846][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.480846][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.480846][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.480846][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.480846][ T254] [ 5344.483112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.483112][ T254] netdev_get_by_index+0x5e/0x80 [ 5344.483112][ T254] fib6_nh_init+0x3d8/0x1580 [ 5344.483112][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5344.483112][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5344.483112][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5344.483112][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5344.483112][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5344.483112][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5344.483112][ T254] addrconf_dad_begin+0x310/0x670 [ 5344.483112][ T254] addrconf_dad_work+0x10b/0xab0 [ 5344.483112][ T254] process_one_work+0x84d/0x18a0 [ 5344.483112][ T254] worker_thread+0x587/0xd30 [ 5344.483112][ T254] kthread+0x28a/0x350 [ 5344.483112][ T254] ret_from_fork+0x31/0x70 [ 5344.483112][ T254] ret_from_fork_asm+0x1a/0x30 [ 5344.483112][ T254] [ 5344.485296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.485296][ T254] netdev_get_by_index+0x5e/0x80 [ 5344.485296][ T254] fib6_nh_init+0x3d8/0x1580 [ 5344.485296][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5344.485296][ T254] ip6_route_add+0x1c/0x140 [ 5344.485296][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5344.485296][ T254] inet6_addr_add+0x4f8/0xa40 [ 5344.485296][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5344.485296][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5344.485296][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.485296][ T254] netlink_unicast+0x449/0x710 [ 5344.485296][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.485296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.485296][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.485296][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.485296][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.485296][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5344.485296][ T254] [ 5344.487570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.487570][ T254] netdev_get_by_index+0x5e/0x80 [ 5344.487570][ T254] fib6_nh_init+0x3d8/0x1580 [ 5344.487570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5344.487570][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5344.487570][ T254] ipv6_add_addr+0x411/0x2000 [ 5344.487570][ T254] inet6_addr_add+0x30e/0xa40 [ 5344.487570][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5344.487570][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5344.487570][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.487570][ T254] netlink_unicast+0x449/0x710 [ 5344.487570][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.487570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.487570][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.487570][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.487570][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.487570][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5344.487570][ T254] [ 5344.489825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.489825][ T254] netdev_get_by_index+0x5e/0x80 [ 5344.489825][ T254] fib6_nh_init+0x3d8/0x1580 [ 5344.489825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5344.489825][ T254] ip6_route_add+0x1c/0x140 [ 5344.489825][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5344.489825][ T254] addrconf_add_dev+0xe2/0x170 [ 5344.489825][ T254] inet6_addr_add+0x12f/0xa40 [ 5344.489825][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5344.489825][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5344.489825][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.489825][ T254] netlink_unicast+0x449/0x710 [ 5344.489825][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.489825][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.489825][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.489825][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.489825][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.489825][ T254] [ 5344.492022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.492022][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5344.492022][ T254] ipv6_find_idev+0x102/0x170 [ 5344.492022][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5344.492022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5344.492022][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.492022][ T254] netlink_unicast+0x449/0x710 [ 5344.492022][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.492022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.492022][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.492022][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.492022][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.492022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5344.492022][ T254] [ 5344.493748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5344.493748][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5344.493748][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5344.493748][ T254] ipv6_find_idev+0x102/0x170 [ 5344.493748][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5344.493748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5344.493748][ T254] netlink_rcv_skb+0x130/0x360 [ 5344.493748][ T254] netlink_unicast+0x449/0x710 [ 5344.493748][ T254] netlink_sendmsg+0x723/0xbe0 [ 5344.493748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5344.493748][ T254] ___sys_sendmsg+0xee/0x170 [ 5344.493748][ T254] __sys_sendmsg+0xcd/0x170 [ 5344.493748][ T254] do_syscall_64+0xc6/0x1e0 [ 5344.493748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5344.493748][ T254] [ 5354.735924][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5354.736717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.736717][ T254] dst_init+0x84/0x4a0 [ 5354.736717][ T254] dst_alloc+0x97/0x150 [ 5354.736717][ T254] ip6_dst_alloc+0x23/0x90 [ 5354.736717][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5354.736717][ T254] ip6_pol_route+0x56f/0x840 [ 5354.736717][ T254] fib6_rule_lookup+0x334/0x630 [ 5354.736717][ T254] ip6_route_output_flags+0x259/0x480 [ 5354.736717][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5354.736717][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5354.736717][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.736717][ T254] netlink_unicast+0x449/0x710 [ 5354.736717][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.736717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.736717][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.736717][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.736717][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.736717][ T254] [ 5354.738929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.738929][ T254] netdev_get_by_index+0x5e/0x80 [ 5354.738929][ T254] fib6_nh_init+0x3d8/0x1580 [ 5354.738929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5354.738929][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5354.738929][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5354.738929][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5354.738929][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5354.738929][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5354.738929][ T254] addrconf_dad_begin+0x310/0x670 [ 5354.738929][ T254] addrconf_dad_work+0x10b/0xab0 [ 5354.738929][ T254] process_one_work+0x84d/0x18a0 [ 5354.738929][ T254] worker_thread+0x587/0xd30 [ 5354.738929][ T254] kthread+0x28a/0x350 [ 5354.738929][ T254] ret_from_fork+0x31/0x70 [ 5354.738929][ T254] ret_from_fork_asm+0x1a/0x30 [ 5354.738929][ T254] [ 5354.741076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.741076][ T254] netdev_get_by_index+0x5e/0x80 [ 5354.741076][ T254] fib6_nh_init+0x3d8/0x1580 [ 5354.741076][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5354.741076][ T254] ip6_route_add+0x1c/0x140 [ 5354.741076][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5354.741076][ T254] inet6_addr_add+0x4f8/0xa40 [ 5354.741076][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5354.741076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5354.741076][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.741076][ T254] netlink_unicast+0x449/0x710 [ 5354.741076][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.741076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.741076][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.741076][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.741076][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.741076][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5354.741076][ T254] [ 5354.743345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.743345][ T254] netdev_get_by_index+0x5e/0x80 [ 5354.743345][ T254] fib6_nh_init+0x3d8/0x1580 [ 5354.743345][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5354.743345][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5354.743345][ T254] ipv6_add_addr+0x411/0x2000 [ 5354.743345][ T254] inet6_addr_add+0x30e/0xa40 [ 5354.743345][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5354.743345][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5354.743345][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.743345][ T254] netlink_unicast+0x449/0x710 [ 5354.743345][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.743345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.743345][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.743345][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.743345][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.743345][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5354.743345][ T254] [ 5354.745589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.745589][ T254] netdev_get_by_index+0x5e/0x80 [ 5354.745589][ T254] fib6_nh_init+0x3d8/0x1580 [ 5354.745589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5354.745589][ T254] ip6_route_add+0x1c/0x140 [ 5354.745589][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5354.745589][ T254] addrconf_add_dev+0xe2/0x170 [ 5354.745589][ T254] inet6_addr_add+0x12f/0xa40 [ 5354.745589][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5354.745589][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5354.745589][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.745589][ T254] netlink_unicast+0x449/0x710 [ 5354.745589][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.745589][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.745589][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.745589][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.745589][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.745589][ T254] [ 5354.747778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.747778][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5354.747778][ T254] ipv6_find_idev+0x102/0x170 [ 5354.747778][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5354.747778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5354.747778][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.747778][ T254] netlink_unicast+0x449/0x710 [ 5354.747778][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.747778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.747778][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.747778][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.747778][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.747778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5354.747778][ T254] [ 5354.749513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5354.749513][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5354.749513][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5354.749513][ T254] ipv6_find_idev+0x102/0x170 [ 5354.749513][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5354.749513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5354.749513][ T254] netlink_rcv_skb+0x130/0x360 [ 5354.749513][ T254] netlink_unicast+0x449/0x710 [ 5354.749513][ T254] netlink_sendmsg+0x723/0xbe0 [ 5354.749513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5354.749513][ T254] ___sys_sendmsg+0xee/0x170 [ 5354.749513][ T254] __sys_sendmsg+0xcd/0x170 [ 5354.749513][ T254] do_syscall_64+0xc6/0x1e0 [ 5354.749513][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5354.749513][ T254] [ 5364.991919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5364.992734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5364.992734][ T254] dst_init+0x84/0x4a0 [ 5364.992734][ T254] dst_alloc+0x97/0x150 [ 5364.992734][ T254] ip6_dst_alloc+0x23/0x90 [ 5364.992734][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5364.992734][ T254] ip6_pol_route+0x56f/0x840 [ 5364.992734][ T254] fib6_rule_lookup+0x334/0x630 [ 5364.992734][ T254] ip6_route_output_flags+0x259/0x480 [ 5364.992734][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5364.992734][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5364.992734][ T254] netlink_rcv_skb+0x130/0x360 [ 5364.992734][ T254] netlink_unicast+0x449/0x710 [ 5364.992734][ T254] netlink_sendmsg+0x723/0xbe0 [ 5364.992734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5364.992734][ T254] ___sys_sendmsg+0xee/0x170 [ 5364.992734][ T254] __sys_sendmsg+0xcd/0x170 [ 5364.992734][ T254] do_syscall_64+0xc6/0x1e0 [ 5364.992734][ T254] [ 5364.994956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5364.994956][ T254] netdev_get_by_index+0x5e/0x80 [ 5364.994956][ T254] fib6_nh_init+0x3d8/0x1580 [ 5364.994956][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5364.994956][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5364.994956][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5364.994956][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5364.994956][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5364.994956][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5364.994956][ T254] addrconf_dad_begin+0x310/0x670 [ 5364.994956][ T254] addrconf_dad_work+0x10b/0xab0 [ 5364.994956][ T254] process_one_work+0x84d/0x18a0 [ 5364.994956][ T254] worker_thread+0x587/0xd30 [ 5364.994956][ T254] kthread+0x28a/0x350 [ 5364.994956][ T254] ret_from_fork+0x31/0x70 [ 5364.994956][ T254] ret_from_fork_asm+0x1a/0x30 [ 5364.994956][ T254] [ 5364.997102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5364.997102][ T254] netdev_get_by_index+0x5e/0x80 [ 5364.997102][ T254] fib6_nh_init+0x3d8/0x1580 [ 5364.997102][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5364.997102][ T254] ip6_route_add+0x1c/0x140 [ 5364.997102][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5364.997102][ T254] inet6_addr_add+0x4f8/0xa40 [ 5364.997102][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5364.997102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5364.997102][ T254] netlink_rcv_skb+0x130/0x360 [ 5364.997102][ T254] netlink_unicast+0x449/0x710 [ 5364.997102][ T254] netlink_sendmsg+0x723/0xbe0 [ 5364.997102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5364.997102][ T254] ___sys_sendmsg+0xee/0x170 [ 5364.997102][ T254] __sys_sendmsg+0xcd/0x170 [ 5364.997102][ T254] do_syscall_64+0xc6/0x1e0 [ 5364.997102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5364.997102][ T254] [ 5364.999340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5364.999340][ T254] netdev_get_by_index+0x5e/0x80 [ 5364.999340][ T254] fib6_nh_init+0x3d8/0x1580 [ 5364.999340][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5364.999340][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5364.999340][ T254] ipv6_add_addr+0x411/0x2000 [ 5364.999340][ T254] inet6_addr_add+0x30e/0xa40 [ 5364.999340][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5364.999340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5364.999340][ T254] netlink_rcv_skb+0x130/0x360 [ 5364.999340][ T254] netlink_unicast+0x449/0x710 [ 5364.999340][ T254] netlink_sendmsg+0x723/0xbe0 [ 5364.999340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5364.999340][ T254] ___sys_sendmsg+0xee/0x170 [ 5364.999340][ T254] __sys_sendmsg+0xcd/0x170 [ 5364.999340][ T254] do_syscall_64+0xc6/0x1e0 [ 5364.999340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5364.999340][ T254] [ 5365.001577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5365.001577][ T254] netdev_get_by_index+0x5e/0x80 [ 5365.001577][ T254] fib6_nh_init+0x3d8/0x1580 [ 5365.001577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5365.001577][ T254] ip6_route_add+0x1c/0x140 [ 5365.001577][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5365.001577][ T254] addrconf_add_dev+0xe2/0x170 [ 5365.001577][ T254] inet6_addr_add+0x12f/0xa40 [ 5365.001577][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5365.001577][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5365.001577][ T254] netlink_rcv_skb+0x130/0x360 [ 5365.001577][ T254] netlink_unicast+0x449/0x710 [ 5365.001577][ T254] netlink_sendmsg+0x723/0xbe0 [ 5365.001577][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5365.001577][ T254] ___sys_sendmsg+0xee/0x170 [ 5365.001577][ T254] __sys_sendmsg+0xcd/0x170 [ 5365.001577][ T254] do_syscall_64+0xc6/0x1e0 [ 5365.001577][ T254] [ 5365.003776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5365.003776][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5365.003776][ T254] ipv6_find_idev+0x102/0x170 [ 5365.003776][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5365.003776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5365.003776][ T254] netlink_rcv_skb+0x130/0x360 [ 5365.003776][ T254] netlink_unicast+0x449/0x710 [ 5365.003776][ T254] netlink_sendmsg+0x723/0xbe0 [ 5365.003776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5365.003776][ T254] ___sys_sendmsg+0xee/0x170 [ 5365.003776][ T254] __sys_sendmsg+0xcd/0x170 [ 5365.003776][ T254] do_syscall_64+0xc6/0x1e0 [ 5365.003776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5365.003776][ T254] [ 5365.005493][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5365.005493][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5365.005493][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5365.005493][ T254] ipv6_find_idev+0x102/0x170 [ 5365.005493][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5365.005493][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5365.005493][ T254] netlink_rcv_skb+0x130/0x360 [ 5365.005493][ T254] netlink_unicast+0x449/0x710 [ 5365.005493][ T254] netlink_sendmsg+0x723/0xbe0 [ 5365.005493][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5365.005493][ T254] ___sys_sendmsg+0xee/0x170 [ 5365.005493][ T254] __sys_sendmsg+0xcd/0x170 [ 5365.005493][ T254] do_syscall_64+0xc6/0x1e0 [ 5365.005493][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5365.005493][ T254] [ 5375.071901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5375.072863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.072863][ T254] dst_init+0x84/0x4a0 [ 5375.072863][ T254] dst_alloc+0x97/0x150 [ 5375.072863][ T254] ip6_dst_alloc+0x23/0x90 [ 5375.072863][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5375.072863][ T254] ip6_pol_route+0x56f/0x840 [ 5375.072863][ T254] fib6_rule_lookup+0x334/0x630 [ 5375.072863][ T254] ip6_route_output_flags+0x259/0x480 [ 5375.072863][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5375.072863][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5375.072863][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.072863][ T254] netlink_unicast+0x449/0x710 [ 5375.072863][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.072863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.072863][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.072863][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.072863][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.072863][ T254] [ 5375.075075][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.075075][ T254] netdev_get_by_index+0x5e/0x80 [ 5375.075075][ T254] fib6_nh_init+0x3d8/0x1580 [ 5375.075075][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5375.075075][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5375.075075][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5375.075075][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5375.075075][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5375.075075][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5375.075075][ T254] addrconf_dad_begin+0x310/0x670 [ 5375.075075][ T254] addrconf_dad_work+0x10b/0xab0 [ 5375.075075][ T254] process_one_work+0x84d/0x18a0 [ 5375.075075][ T254] worker_thread+0x587/0xd30 [ 5375.075075][ T254] kthread+0x28a/0x350 [ 5375.075075][ T254] ret_from_fork+0x31/0x70 [ 5375.075075][ T254] ret_from_fork_asm+0x1a/0x30 [ 5375.075075][ T254] [ 5375.077240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.077240][ T254] netdev_get_by_index+0x5e/0x80 [ 5375.077240][ T254] fib6_nh_init+0x3d8/0x1580 [ 5375.077240][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5375.077240][ T254] ip6_route_add+0x1c/0x140 [ 5375.077240][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5375.077240][ T254] inet6_addr_add+0x4f8/0xa40 [ 5375.077240][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5375.077240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5375.077240][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.077240][ T254] netlink_unicast+0x449/0x710 [ 5375.077240][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.077240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.077240][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.077240][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.077240][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.077240][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5375.077240][ T254] [ 5375.079502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.079502][ T254] netdev_get_by_index+0x5e/0x80 [ 5375.079502][ T254] fib6_nh_init+0x3d8/0x1580 [ 5375.079502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5375.079502][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5375.079502][ T254] ipv6_add_addr+0x411/0x2000 [ 5375.079502][ T254] inet6_addr_add+0x30e/0xa40 [ 5375.079502][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5375.079502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5375.079502][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.079502][ T254] netlink_unicast+0x449/0x710 [ 5375.079502][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.079502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.079502][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.079502][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.079502][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.079502][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5375.079502][ T254] [ 5375.081756][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.081756][ T254] netdev_get_by_index+0x5e/0x80 [ 5375.081756][ T254] fib6_nh_init+0x3d8/0x1580 [ 5375.081756][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5375.081756][ T254] ip6_route_add+0x1c/0x140 [ 5375.081756][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5375.081756][ T254] addrconf_add_dev+0xe2/0x170 [ 5375.081756][ T254] inet6_addr_add+0x12f/0xa40 [ 5375.081756][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5375.081756][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5375.081756][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.081756][ T254] netlink_unicast+0x449/0x710 [ 5375.081756][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.081756][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.081756][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.081756][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.081756][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.081756][ T254] [ 5375.083975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.083975][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5375.083975][ T254] ipv6_find_idev+0x102/0x170 [ 5375.083975][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5375.083975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5375.083975][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.083975][ T254] netlink_unicast+0x449/0x710 [ 5375.083975][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.083975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.083975][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.083975][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.083975][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.083975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5375.083975][ T254] [ 5375.085712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5375.085712][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5375.085712][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5375.085712][ T254] ipv6_find_idev+0x102/0x170 [ 5375.085712][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5375.085712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5375.085712][ T254] netlink_rcv_skb+0x130/0x360 [ 5375.085712][ T254] netlink_unicast+0x449/0x710 [ 5375.085712][ T254] netlink_sendmsg+0x723/0xbe0 [ 5375.085712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5375.085712][ T254] ___sys_sendmsg+0xee/0x170 [ 5375.085712][ T254] __sys_sendmsg+0xcd/0x170 [ 5375.085712][ T254] do_syscall_64+0xc6/0x1e0 [ 5375.085712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5375.085712][ T254] [ 5385.215941][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5385.216611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.216611][ T254] dst_init+0x84/0x4a0 [ 5385.216611][ T254] dst_alloc+0x97/0x150 [ 5385.216611][ T254] ip6_dst_alloc+0x23/0x90 [ 5385.216611][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5385.216611][ T254] ip6_pol_route+0x56f/0x840 [ 5385.216611][ T254] fib6_rule_lookup+0x334/0x630 [ 5385.216611][ T254] ip6_route_output_flags+0x259/0x480 [ 5385.216611][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5385.216611][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5385.216611][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.216611][ T254] netlink_unicast+0x449/0x710 [ 5385.216611][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.216611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.216611][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.216611][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.216611][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.216611][ T254] [ 5385.218856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.218856][ T254] netdev_get_by_index+0x5e/0x80 [ 5385.218856][ T254] fib6_nh_init+0x3d8/0x1580 [ 5385.218856][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5385.218856][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5385.218856][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5385.218856][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5385.218856][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5385.218856][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5385.218856][ T254] addrconf_dad_begin+0x310/0x670 [ 5385.218856][ T254] addrconf_dad_work+0x10b/0xab0 [ 5385.218856][ T254] process_one_work+0x84d/0x18a0 [ 5385.218856][ T254] worker_thread+0x587/0xd30 [ 5385.218856][ T254] kthread+0x28a/0x350 [ 5385.218856][ T254] ret_from_fork+0x31/0x70 [ 5385.218856][ T254] ret_from_fork_asm+0x1a/0x30 [ 5385.218856][ T254] [ 5385.221055][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.221055][ T254] netdev_get_by_index+0x5e/0x80 [ 5385.221055][ T254] fib6_nh_init+0x3d8/0x1580 [ 5385.221055][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5385.221055][ T254] ip6_route_add+0x1c/0x140 [ 5385.221055][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5385.221055][ T254] inet6_addr_add+0x4f8/0xa40 [ 5385.221055][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5385.221055][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5385.221055][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.221055][ T254] netlink_unicast+0x449/0x710 [ 5385.221055][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.221055][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.221055][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.221055][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.221055][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.221055][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5385.221055][ T254] [ 5385.223328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.223328][ T254] netdev_get_by_index+0x5e/0x80 [ 5385.223328][ T254] fib6_nh_init+0x3d8/0x1580 [ 5385.223328][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5385.223328][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5385.223328][ T254] ipv6_add_addr+0x411/0x2000 [ 5385.223328][ T254] inet6_addr_add+0x30e/0xa40 [ 5385.223328][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5385.223328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5385.223328][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.223328][ T254] netlink_unicast+0x449/0x710 [ 5385.223328][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.223328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.223328][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.223328][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.223328][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.223328][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5385.223328][ T254] [ 5385.225605][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.225605][ T254] netdev_get_by_index+0x5e/0x80 [ 5385.225605][ T254] fib6_nh_init+0x3d8/0x1580 [ 5385.225605][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5385.225605][ T254] ip6_route_add+0x1c/0x140 [ 5385.225605][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5385.225605][ T254] addrconf_add_dev+0xe2/0x170 [ 5385.225605][ T254] inet6_addr_add+0x12f/0xa40 [ 5385.225605][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5385.225605][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5385.225605][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.225605][ T254] netlink_unicast+0x449/0x710 [ 5385.225605][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.225605][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.225605][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.225605][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.225605][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.225605][ T254] [ 5385.227835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.227835][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5385.227835][ T254] ipv6_find_idev+0x102/0x170 [ 5385.227835][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5385.227835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5385.227835][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.227835][ T254] netlink_unicast+0x449/0x710 [ 5385.227835][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.227835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.227835][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.227835][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.227835][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.227835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5385.227835][ T254] [ 5385.229583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5385.229583][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5385.229583][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5385.229583][ T254] ipv6_find_idev+0x102/0x170 [ 5385.229583][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5385.229583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5385.229583][ T254] netlink_rcv_skb+0x130/0x360 [ 5385.229583][ T254] netlink_unicast+0x449/0x710 [ 5385.229583][ T254] netlink_sendmsg+0x723/0xbe0 [ 5385.229583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5385.229583][ T254] ___sys_sendmsg+0xee/0x170 [ 5385.229583][ T254] __sys_sendmsg+0xcd/0x170 [ 5385.229583][ T254] do_syscall_64+0xc6/0x1e0 [ 5385.229583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5385.229583][ T254] [ 5395.351855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5395.352287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.352287][ T254] dst_init+0x84/0x4a0 [ 5395.352287][ T254] dst_alloc+0x97/0x150 [ 5395.352287][ T254] ip6_dst_alloc+0x23/0x90 [ 5395.352287][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5395.352287][ T254] ip6_pol_route+0x56f/0x840 [ 5395.352287][ T254] fib6_rule_lookup+0x334/0x630 [ 5395.352287][ T254] ip6_route_output_flags+0x259/0x480 [ 5395.352287][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5395.352287][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5395.352287][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.352287][ T254] netlink_unicast+0x449/0x710 [ 5395.352287][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.352287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.352287][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.352287][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.352287][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.352287][ T254] [ 5395.354503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.354503][ T254] netdev_get_by_index+0x5e/0x80 [ 5395.354503][ T254] fib6_nh_init+0x3d8/0x1580 [ 5395.354503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5395.354503][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5395.354503][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5395.354503][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5395.354503][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5395.354503][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5395.354503][ T254] addrconf_dad_begin+0x310/0x670 [ 5395.354503][ T254] addrconf_dad_work+0x10b/0xab0 [ 5395.354503][ T254] process_one_work+0x84d/0x18a0 [ 5395.354503][ T254] worker_thread+0x587/0xd30 [ 5395.354503][ T254] kthread+0x28a/0x350 [ 5395.354503][ T254] ret_from_fork+0x31/0x70 [ 5395.354503][ T254] ret_from_fork_asm+0x1a/0x30 [ 5395.354503][ T254] [ 5395.356674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.356674][ T254] netdev_get_by_index+0x5e/0x80 [ 5395.356674][ T254] fib6_nh_init+0x3d8/0x1580 [ 5395.356674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5395.356674][ T254] ip6_route_add+0x1c/0x140 [ 5395.356674][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5395.356674][ T254] inet6_addr_add+0x4f8/0xa40 [ 5395.356674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5395.356674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5395.356674][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.356674][ T254] netlink_unicast+0x449/0x710 [ 5395.356674][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.356674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.356674][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.356674][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.356674][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.356674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5395.356674][ T254] [ 5395.358931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.358931][ T254] netdev_get_by_index+0x5e/0x80 [ 5395.358931][ T254] fib6_nh_init+0x3d8/0x1580 [ 5395.358931][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5395.358931][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5395.358931][ T254] ipv6_add_addr+0x411/0x2000 [ 5395.358931][ T254] inet6_addr_add+0x30e/0xa40 [ 5395.358931][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5395.358931][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5395.358931][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.358931][ T254] netlink_unicast+0x449/0x710 [ 5395.358931][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.358931][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.358931][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.358931][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.358931][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.358931][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5395.358931][ T254] [ 5395.361192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.361192][ T254] netdev_get_by_index+0x5e/0x80 [ 5395.361192][ T254] fib6_nh_init+0x3d8/0x1580 [ 5395.361192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5395.361192][ T254] ip6_route_add+0x1c/0x140 [ 5395.361192][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5395.361192][ T254] addrconf_add_dev+0xe2/0x170 [ 5395.361192][ T254] inet6_addr_add+0x12f/0xa40 [ 5395.361192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5395.361192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5395.361192][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.361192][ T254] netlink_unicast+0x449/0x710 [ 5395.361192][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.361192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.361192][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.361192][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.361192][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.361192][ T254] [ 5395.363412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.363412][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5395.363412][ T254] ipv6_find_idev+0x102/0x170 [ 5395.363412][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5395.363412][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5395.363412][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.363412][ T254] netlink_unicast+0x449/0x710 [ 5395.363412][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.363412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.363412][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.363412][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.363412][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.363412][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5395.363412][ T254] [ 5395.365163][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5395.365163][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5395.365163][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5395.365163][ T254] ipv6_find_idev+0x102/0x170 [ 5395.365163][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5395.365163][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5395.365163][ T254] netlink_rcv_skb+0x130/0x360 [ 5395.365163][ T254] netlink_unicast+0x449/0x710 [ 5395.365163][ T254] netlink_sendmsg+0x723/0xbe0 [ 5395.365163][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5395.365163][ T254] ___sys_sendmsg+0xee/0x170 [ 5395.365163][ T254] __sys_sendmsg+0xcd/0x170 [ 5395.365163][ T254] do_syscall_64+0xc6/0x1e0 [ 5395.365163][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5395.365163][ T254] [ 5405.607917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5405.608717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.608717][ T254] dst_init+0x84/0x4a0 [ 5405.608717][ T254] dst_alloc+0x97/0x150 [ 5405.608717][ T254] ip6_dst_alloc+0x23/0x90 [ 5405.608717][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5405.608717][ T254] ip6_pol_route+0x56f/0x840 [ 5405.608717][ T254] fib6_rule_lookup+0x334/0x630 [ 5405.608717][ T254] ip6_route_output_flags+0x259/0x480 [ 5405.608717][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5405.608717][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5405.608717][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.608717][ T254] netlink_unicast+0x449/0x710 [ 5405.608717][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.608717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.608717][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.608717][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.608717][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.608717][ T254] [ 5405.610957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.610957][ T254] netdev_get_by_index+0x5e/0x80 [ 5405.610957][ T254] fib6_nh_init+0x3d8/0x1580 [ 5405.610957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5405.610957][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5405.610957][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5405.610957][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5405.610957][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5405.610957][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5405.610957][ T254] addrconf_dad_begin+0x310/0x670 [ 5405.610957][ T254] addrconf_dad_work+0x10b/0xab0 [ 5405.610957][ T254] process_one_work+0x84d/0x18a0 [ 5405.610957][ T254] worker_thread+0x587/0xd30 [ 5405.610957][ T254] kthread+0x28a/0x350 [ 5405.610957][ T254] ret_from_fork+0x31/0x70 [ 5405.610957][ T254] ret_from_fork_asm+0x1a/0x30 [ 5405.610957][ T254] [ 5405.613131][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.613131][ T254] netdev_get_by_index+0x5e/0x80 [ 5405.613131][ T254] fib6_nh_init+0x3d8/0x1580 [ 5405.613131][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5405.613131][ T254] ip6_route_add+0x1c/0x140 [ 5405.613131][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5405.613131][ T254] inet6_addr_add+0x4f8/0xa40 [ 5405.613131][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5405.613131][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5405.613131][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.613131][ T254] netlink_unicast+0x449/0x710 [ 5405.613131][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.613131][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.613131][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.613131][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.613131][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.613131][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5405.613131][ T254] [ 5405.615393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.615393][ T254] netdev_get_by_index+0x5e/0x80 [ 5405.615393][ T254] fib6_nh_init+0x3d8/0x1580 [ 5405.615393][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5405.615393][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5405.615393][ T254] ipv6_add_addr+0x411/0x2000 [ 5405.615393][ T254] inet6_addr_add+0x30e/0xa40 [ 5405.615393][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5405.615393][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5405.615393][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.615393][ T254] netlink_unicast+0x449/0x710 [ 5405.615393][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.615393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.615393][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.615393][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.615393][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.615393][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5405.615393][ T254] [ 5405.617646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.617646][ T254] netdev_get_by_index+0x5e/0x80 [ 5405.617646][ T254] fib6_nh_init+0x3d8/0x1580 [ 5405.617646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5405.617646][ T254] ip6_route_add+0x1c/0x140 [ 5405.617646][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5405.617646][ T254] addrconf_add_dev+0xe2/0x170 [ 5405.617646][ T254] inet6_addr_add+0x12f/0xa40 [ 5405.617646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5405.617646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5405.617646][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.617646][ T254] netlink_unicast+0x449/0x710 [ 5405.617646][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.617646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.617646][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.617646][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.617646][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.617646][ T254] [ 5405.619862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.619862][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5405.619862][ T254] ipv6_find_idev+0x102/0x170 [ 5405.619862][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5405.619862][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5405.619862][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.619862][ T254] netlink_unicast+0x449/0x710 [ 5405.619862][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.619862][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.619862][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.619862][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.619862][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.619862][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5405.619862][ T254] [ 5405.621603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5405.621603][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5405.621603][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5405.621603][ T254] ipv6_find_idev+0x102/0x170 [ 5405.621603][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5405.621603][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5405.621603][ T254] netlink_rcv_skb+0x130/0x360 [ 5405.621603][ T254] netlink_unicast+0x449/0x710 [ 5405.621603][ T254] netlink_sendmsg+0x723/0xbe0 [ 5405.621603][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5405.621603][ T254] ___sys_sendmsg+0xee/0x170 [ 5405.621603][ T254] __sys_sendmsg+0xcd/0x170 [ 5405.621603][ T254] do_syscall_64+0xc6/0x1e0 [ 5405.621603][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5405.621603][ T254] [ 5415.863870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5415.864362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.864362][ T254] dst_init+0x84/0x4a0 [ 5415.864362][ T254] dst_alloc+0x97/0x150 [ 5415.864362][ T254] ip6_dst_alloc+0x23/0x90 [ 5415.864362][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5415.864362][ T254] ip6_pol_route+0x56f/0x840 [ 5415.864362][ T254] fib6_rule_lookup+0x334/0x630 [ 5415.864362][ T254] ip6_route_output_flags+0x259/0x480 [ 5415.864362][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5415.864362][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5415.864362][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.864362][ T254] netlink_unicast+0x449/0x710 [ 5415.864362][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.864362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.864362][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.864362][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.864362][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.864362][ T254] [ 5415.866580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.866580][ T254] netdev_get_by_index+0x5e/0x80 [ 5415.866580][ T254] fib6_nh_init+0x3d8/0x1580 [ 5415.866580][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5415.866580][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5415.866580][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5415.866580][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5415.866580][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5415.866580][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5415.866580][ T254] addrconf_dad_begin+0x310/0x670 [ 5415.866580][ T254] addrconf_dad_work+0x10b/0xab0 [ 5415.866580][ T254] process_one_work+0x84d/0x18a0 [ 5415.866580][ T254] worker_thread+0x587/0xd30 [ 5415.866580][ T254] kthread+0x28a/0x350 [ 5415.866580][ T254] ret_from_fork+0x31/0x70 [ 5415.866580][ T254] ret_from_fork_asm+0x1a/0x30 [ 5415.866580][ T254] [ 5415.868737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.868737][ T254] netdev_get_by_index+0x5e/0x80 [ 5415.868737][ T254] fib6_nh_init+0x3d8/0x1580 [ 5415.868737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5415.868737][ T254] ip6_route_add+0x1c/0x140 [ 5415.868737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5415.868737][ T254] inet6_addr_add+0x4f8/0xa40 [ 5415.868737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5415.868737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5415.868737][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.868737][ T254] netlink_unicast+0x449/0x710 [ 5415.868737][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.868737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.868737][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.868737][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.868737][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.868737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5415.868737][ T254] [ 5415.870998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.870998][ T254] netdev_get_by_index+0x5e/0x80 [ 5415.870998][ T254] fib6_nh_init+0x3d8/0x1580 [ 5415.870998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5415.870998][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5415.870998][ T254] ipv6_add_addr+0x411/0x2000 [ 5415.870998][ T254] inet6_addr_add+0x30e/0xa40 [ 5415.870998][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5415.870998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5415.870998][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.870998][ T254] netlink_unicast+0x449/0x710 [ 5415.870998][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.870998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.870998][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.870998][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.870998][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.870998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5415.870998][ T254] [ 5415.873263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.873263][ T254] netdev_get_by_index+0x5e/0x80 [ 5415.873263][ T254] fib6_nh_init+0x3d8/0x1580 [ 5415.873263][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5415.873263][ T254] ip6_route_add+0x1c/0x140 [ 5415.873263][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5415.873263][ T254] addrconf_add_dev+0xe2/0x170 [ 5415.873263][ T254] inet6_addr_add+0x12f/0xa40 [ 5415.873263][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5415.873263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5415.873263][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.873263][ T254] netlink_unicast+0x449/0x710 [ 5415.873263][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.873263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.873263][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.873263][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.873263][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.873263][ T254] [ 5415.875501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.875501][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5415.875501][ T254] ipv6_find_idev+0x102/0x170 [ 5415.875501][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5415.875501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5415.875501][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.875501][ T254] netlink_unicast+0x449/0x710 [ 5415.875501][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.875501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.875501][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.875501][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.875501][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.875501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5415.875501][ T254] [ 5415.877236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5415.877236][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5415.877236][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5415.877236][ T254] ipv6_find_idev+0x102/0x170 [ 5415.877236][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5415.877236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5415.877236][ T254] netlink_rcv_skb+0x130/0x360 [ 5415.877236][ T254] netlink_unicast+0x449/0x710 [ 5415.877236][ T254] netlink_sendmsg+0x723/0xbe0 [ 5415.877236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5415.877236][ T254] ___sys_sendmsg+0xee/0x170 [ 5415.877236][ T254] __sys_sendmsg+0xcd/0x170 [ 5415.877236][ T254] do_syscall_64+0xc6/0x1e0 [ 5415.877236][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5415.877236][ T254] [ 5426.119919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5426.120723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.120723][ T254] dst_init+0x84/0x4a0 [ 5426.120723][ T254] dst_alloc+0x97/0x150 [ 5426.120723][ T254] ip6_dst_alloc+0x23/0x90 [ 5426.120723][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5426.120723][ T254] ip6_pol_route+0x56f/0x840 [ 5426.120723][ T254] fib6_rule_lookup+0x334/0x630 [ 5426.120723][ T254] ip6_route_output_flags+0x259/0x480 [ 5426.120723][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5426.120723][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5426.120723][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.120723][ T254] netlink_unicast+0x449/0x710 [ 5426.120723][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.120723][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.120723][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.120723][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.120723][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.120723][ T254] [ 5426.123223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.123223][ T254] netdev_get_by_index+0x5e/0x80 [ 5426.123223][ T254] fib6_nh_init+0x3d8/0x1580 [ 5426.123223][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5426.123223][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5426.123223][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5426.123223][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5426.123223][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5426.123223][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5426.123223][ T254] addrconf_dad_begin+0x310/0x670 [ 5426.123223][ T254] addrconf_dad_work+0x10b/0xab0 [ 5426.123223][ T254] process_one_work+0x84d/0x18a0 [ 5426.123223][ T254] worker_thread+0x587/0xd30 [ 5426.123223][ T254] kthread+0x28a/0x350 [ 5426.123223][ T254] ret_from_fork+0x31/0x70 [ 5426.123223][ T254] ret_from_fork_asm+0x1a/0x30 [ 5426.123223][ T254] [ 5426.125421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.125421][ T254] netdev_get_by_index+0x5e/0x80 [ 5426.125421][ T254] fib6_nh_init+0x3d8/0x1580 [ 5426.125421][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5426.125421][ T254] ip6_route_add+0x1c/0x140 [ 5426.125421][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5426.125421][ T254] inet6_addr_add+0x4f8/0xa40 [ 5426.125421][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5426.125421][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5426.125421][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.125421][ T254] netlink_unicast+0x449/0x710 [ 5426.125421][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.125421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.125421][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.125421][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.125421][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.125421][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5426.125421][ T254] [ 5426.127673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.127673][ T254] netdev_get_by_index+0x5e/0x80 [ 5426.127673][ T254] fib6_nh_init+0x3d8/0x1580 [ 5426.127673][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5426.127673][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5426.127673][ T254] ipv6_add_addr+0x411/0x2000 [ 5426.127673][ T254] inet6_addr_add+0x30e/0xa40 [ 5426.127673][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5426.127673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5426.127673][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.127673][ T254] netlink_unicast+0x449/0x710 [ 5426.127673][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.127673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.127673][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.127673][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.127673][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.127673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5426.127673][ T254] [ 5426.129925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.129925][ T254] netdev_get_by_index+0x5e/0x80 [ 5426.129925][ T254] fib6_nh_init+0x3d8/0x1580 [ 5426.129925][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5426.129925][ T254] ip6_route_add+0x1c/0x140 [ 5426.129925][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5426.129925][ T254] addrconf_add_dev+0xe2/0x170 [ 5426.129925][ T254] inet6_addr_add+0x12f/0xa40 [ 5426.129925][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5426.129925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5426.129925][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.129925][ T254] netlink_unicast+0x449/0x710 [ 5426.129925][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.129925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.129925][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.129925][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.129925][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.129925][ T254] [ 5426.132151][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.132151][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5426.132151][ T254] ipv6_find_idev+0x102/0x170 [ 5426.132151][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5426.132151][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5426.132151][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.132151][ T254] netlink_unicast+0x449/0x710 [ 5426.132151][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.132151][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.132151][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.132151][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.132151][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.132151][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5426.132151][ T254] [ 5426.133886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5426.133886][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5426.133886][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5426.133886][ T254] ipv6_find_idev+0x102/0x170 [ 5426.133886][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5426.133886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5426.133886][ T254] netlink_rcv_skb+0x130/0x360 [ 5426.133886][ T254] netlink_unicast+0x449/0x710 [ 5426.133886][ T254] netlink_sendmsg+0x723/0xbe0 [ 5426.133886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5426.133886][ T254] ___sys_sendmsg+0xee/0x170 [ 5426.133886][ T254] __sys_sendmsg+0xcd/0x170 [ 5426.133886][ T254] do_syscall_64+0xc6/0x1e0 [ 5426.133886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5426.133886][ T254] [ 5436.375925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5436.376751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.376751][ T254] dst_init+0x84/0x4a0 [ 5436.376751][ T254] dst_alloc+0x97/0x150 [ 5436.376751][ T254] ip6_dst_alloc+0x23/0x90 [ 5436.376751][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5436.376751][ T254] ip6_pol_route+0x56f/0x840 [ 5436.376751][ T254] fib6_rule_lookup+0x334/0x630 [ 5436.376751][ T254] ip6_route_output_flags+0x259/0x480 [ 5436.376751][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5436.376751][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5436.376751][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.376751][ T254] netlink_unicast+0x449/0x710 [ 5436.376751][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.376751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.376751][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.376751][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.376751][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.376751][ T254] [ 5436.378958][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.378958][ T254] netdev_get_by_index+0x5e/0x80 [ 5436.378958][ T254] fib6_nh_init+0x3d8/0x1580 [ 5436.378958][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5436.378958][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5436.378958][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5436.378958][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5436.378958][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5436.378958][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5436.378958][ T254] addrconf_dad_begin+0x310/0x670 [ 5436.378958][ T254] addrconf_dad_work+0x10b/0xab0 [ 5436.378958][ T254] process_one_work+0x84d/0x18a0 [ 5436.378958][ T254] worker_thread+0x587/0xd30 [ 5436.378958][ T254] kthread+0x28a/0x350 [ 5436.378958][ T254] ret_from_fork+0x31/0x70 [ 5436.378958][ T254] ret_from_fork_asm+0x1a/0x30 [ 5436.378958][ T254] [ 5436.381122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.381122][ T254] netdev_get_by_index+0x5e/0x80 [ 5436.381122][ T254] fib6_nh_init+0x3d8/0x1580 [ 5436.381122][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5436.381122][ T254] ip6_route_add+0x1c/0x140 [ 5436.381122][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5436.381122][ T254] inet6_addr_add+0x4f8/0xa40 [ 5436.381122][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5436.381122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5436.381122][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.381122][ T254] netlink_unicast+0x449/0x710 [ 5436.381122][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.381122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.381122][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.381122][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.381122][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.381122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5436.381122][ T254] [ 5436.383782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.383782][ T254] netdev_get_by_index+0x5e/0x80 [ 5436.383782][ T254] fib6_nh_init+0x3d8/0x1580 [ 5436.383782][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5436.383782][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5436.383782][ T254] ipv6_add_addr+0x411/0x2000 [ 5436.383782][ T254] inet6_addr_add+0x30e/0xa40 [ 5436.383782][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5436.383782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5436.383782][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.383782][ T254] netlink_unicast+0x449/0x710 [ 5436.383782][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.383782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.383782][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.383782][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.383782][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.383782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5436.383782][ T254] [ 5436.386038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.386038][ T254] netdev_get_by_index+0x5e/0x80 [ 5436.386038][ T254] fib6_nh_init+0x3d8/0x1580 [ 5436.386038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5436.386038][ T254] ip6_route_add+0x1c/0x140 [ 5436.386038][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5436.386038][ T254] addrconf_add_dev+0xe2/0x170 [ 5436.386038][ T254] inet6_addr_add+0x12f/0xa40 [ 5436.386038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5436.386038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5436.386038][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.386038][ T254] netlink_unicast+0x449/0x710 [ 5436.386038][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.386038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.386038][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.386038][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.386038][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.386038][ T254] [ 5436.388266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.388266][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5436.388266][ T254] ipv6_find_idev+0x102/0x170 [ 5436.388266][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5436.388266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5436.388266][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.388266][ T254] netlink_unicast+0x449/0x710 [ 5436.388266][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.388266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.388266][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.388266][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.388266][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.388266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5436.388266][ T254] [ 5436.390003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5436.390003][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5436.390003][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5436.390003][ T254] ipv6_find_idev+0x102/0x170 [ 5436.390003][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5436.390003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5436.390003][ T254] netlink_rcv_skb+0x130/0x360 [ 5436.390003][ T254] netlink_unicast+0x449/0x710 [ 5436.390003][ T254] netlink_sendmsg+0x723/0xbe0 [ 5436.390003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5436.390003][ T254] ___sys_sendmsg+0xee/0x170 [ 5436.390003][ T254] __sys_sendmsg+0xcd/0x170 [ 5436.390003][ T254] do_syscall_64+0xc6/0x1e0 [ 5436.390003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5436.390003][ T254] [ 5446.607850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5446.608358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.608358][ T254] dst_init+0x84/0x4a0 [ 5446.608358][ T254] dst_alloc+0x97/0x150 [ 5446.608358][ T254] ip6_dst_alloc+0x23/0x90 [ 5446.608358][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5446.608358][ T254] ip6_pol_route+0x56f/0x840 [ 5446.608358][ T254] fib6_rule_lookup+0x334/0x630 [ 5446.608358][ T254] ip6_route_output_flags+0x259/0x480 [ 5446.608358][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5446.608358][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5446.608358][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.608358][ T254] netlink_unicast+0x449/0x710 [ 5446.608358][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.608358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.608358][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.608358][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.608358][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.608358][ T254] [ 5446.610701][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.610701][ T254] netdev_get_by_index+0x5e/0x80 [ 5446.610701][ T254] fib6_nh_init+0x3d8/0x1580 [ 5446.610701][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5446.610701][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5446.610701][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5446.610701][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5446.610701][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5446.610701][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5446.610701][ T254] addrconf_dad_begin+0x310/0x670 [ 5446.610701][ T254] addrconf_dad_work+0x10b/0xab0 [ 5446.610701][ T254] process_one_work+0x84d/0x18a0 [ 5446.610701][ T254] worker_thread+0x587/0xd30 [ 5446.610701][ T254] kthread+0x28a/0x350 [ 5446.610701][ T254] ret_from_fork+0x31/0x70 [ 5446.610701][ T254] ret_from_fork_asm+0x1a/0x30 [ 5446.610701][ T254] [ 5446.612910][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.612910][ T254] netdev_get_by_index+0x5e/0x80 [ 5446.612910][ T254] fib6_nh_init+0x3d8/0x1580 [ 5446.612910][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5446.612910][ T254] ip6_route_add+0x1c/0x140 [ 5446.612910][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5446.612910][ T254] inet6_addr_add+0x4f8/0xa40 [ 5446.612910][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5446.612910][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5446.612910][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.612910][ T254] netlink_unicast+0x449/0x710 [ 5446.612910][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.612910][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.612910][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.612910][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.612910][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.612910][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5446.612910][ T254] [ 5446.615194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.615194][ T254] netdev_get_by_index+0x5e/0x80 [ 5446.615194][ T254] fib6_nh_init+0x3d8/0x1580 [ 5446.615194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5446.615194][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5446.615194][ T254] ipv6_add_addr+0x411/0x2000 [ 5446.615194][ T254] inet6_addr_add+0x30e/0xa40 [ 5446.615194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5446.615194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5446.615194][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.615194][ T254] netlink_unicast+0x449/0x710 [ 5446.615194][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.615194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.615194][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.615194][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.615194][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.615194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5446.615194][ T254] [ 5446.617477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.617477][ T254] netdev_get_by_index+0x5e/0x80 [ 5446.617477][ T254] fib6_nh_init+0x3d8/0x1580 [ 5446.617477][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5446.617477][ T254] ip6_route_add+0x1c/0x140 [ 5446.617477][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5446.617477][ T254] addrconf_add_dev+0xe2/0x170 [ 5446.617477][ T254] inet6_addr_add+0x12f/0xa40 [ 5446.617477][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5446.617477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5446.617477][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.617477][ T254] netlink_unicast+0x449/0x710 [ 5446.617477][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.617477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.617477][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.617477][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.617477][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.617477][ T254] [ 5446.619698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.619698][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5446.619698][ T254] ipv6_find_idev+0x102/0x170 [ 5446.619698][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5446.619698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5446.619698][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.619698][ T254] netlink_unicast+0x449/0x710 [ 5446.619698][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.619698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.619698][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.619698][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.619698][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.619698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5446.619698][ T254] [ 5446.621445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5446.621445][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5446.621445][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5446.621445][ T254] ipv6_find_idev+0x102/0x170 [ 5446.621445][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5446.621445][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5446.621445][ T254] netlink_rcv_skb+0x130/0x360 [ 5446.621445][ T254] netlink_unicast+0x449/0x710 [ 5446.621445][ T254] netlink_sendmsg+0x723/0xbe0 [ 5446.621445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5446.621445][ T254] ___sys_sendmsg+0xee/0x170 [ 5446.621445][ T254] __sys_sendmsg+0xcd/0x170 [ 5446.621445][ T254] do_syscall_64+0xc6/0x1e0 [ 5446.621445][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5446.621445][ T254] [ 5456.863944][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5456.864670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.864670][ T254] dst_init+0x84/0x4a0 [ 5456.864670][ T254] dst_alloc+0x97/0x150 [ 5456.864670][ T254] ip6_dst_alloc+0x23/0x90 [ 5456.864670][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5456.864670][ T254] ip6_pol_route+0x56f/0x840 [ 5456.864670][ T254] fib6_rule_lookup+0x334/0x630 [ 5456.864670][ T254] ip6_route_output_flags+0x259/0x480 [ 5456.864670][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5456.864670][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5456.864670][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.864670][ T254] netlink_unicast+0x449/0x710 [ 5456.864670][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.864670][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.864670][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.864670][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.864670][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.864670][ T254] [ 5456.866906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.866906][ T254] netdev_get_by_index+0x5e/0x80 [ 5456.866906][ T254] fib6_nh_init+0x3d8/0x1580 [ 5456.866906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5456.866906][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5456.866906][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5456.866906][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5456.866906][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5456.866906][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5456.866906][ T254] addrconf_dad_begin+0x310/0x670 [ 5456.866906][ T254] addrconf_dad_work+0x10b/0xab0 [ 5456.866906][ T254] process_one_work+0x84d/0x18a0 [ 5456.866906][ T254] worker_thread+0x587/0xd30 [ 5456.866906][ T254] kthread+0x28a/0x350 [ 5456.866906][ T254] ret_from_fork+0x31/0x70 [ 5456.866906][ T254] ret_from_fork_asm+0x1a/0x30 [ 5456.866906][ T254] [ 5456.869106][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.869106][ T254] netdev_get_by_index+0x5e/0x80 [ 5456.869106][ T254] fib6_nh_init+0x3d8/0x1580 [ 5456.869106][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5456.869106][ T254] ip6_route_add+0x1c/0x140 [ 5456.869106][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5456.869106][ T254] inet6_addr_add+0x4f8/0xa40 [ 5456.869106][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5456.869106][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5456.869106][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.869106][ T254] netlink_unicast+0x449/0x710 [ 5456.869106][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.869106][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.869106][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.869106][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.869106][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.869106][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5456.869106][ T254] [ 5456.871406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.871406][ T254] netdev_get_by_index+0x5e/0x80 [ 5456.871406][ T254] fib6_nh_init+0x3d8/0x1580 [ 5456.871406][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5456.871406][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5456.871406][ T254] ipv6_add_addr+0x411/0x2000 [ 5456.871406][ T254] inet6_addr_add+0x30e/0xa40 [ 5456.871406][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5456.871406][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5456.871406][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.871406][ T254] netlink_unicast+0x449/0x710 [ 5456.871406][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.871406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.871406][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.871406][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.871406][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.871406][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5456.871406][ T254] [ 5456.873683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.873683][ T254] netdev_get_by_index+0x5e/0x80 [ 5456.873683][ T254] fib6_nh_init+0x3d8/0x1580 [ 5456.873683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5456.873683][ T254] ip6_route_add+0x1c/0x140 [ 5456.873683][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5456.873683][ T254] addrconf_add_dev+0xe2/0x170 [ 5456.873683][ T254] inet6_addr_add+0x12f/0xa40 [ 5456.873683][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5456.873683][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5456.873683][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.873683][ T254] netlink_unicast+0x449/0x710 [ 5456.873683][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.873683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.873683][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.873683][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.873683][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.873683][ T254] [ 5456.875940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.875940][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5456.875940][ T254] ipv6_find_idev+0x102/0x170 [ 5456.875940][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5456.875940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5456.875940][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.875940][ T254] netlink_unicast+0x449/0x710 [ 5456.875940][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.875940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.875940][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.875940][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.875940][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.875940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5456.875940][ T254] [ 5456.877683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5456.877683][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5456.877683][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5456.877683][ T254] ipv6_find_idev+0x102/0x170 [ 5456.877683][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5456.877683][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5456.877683][ T254] netlink_rcv_skb+0x130/0x360 [ 5456.877683][ T254] netlink_unicast+0x449/0x710 [ 5456.877683][ T254] netlink_sendmsg+0x723/0xbe0 [ 5456.877683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5456.877683][ T254] ___sys_sendmsg+0xee/0x170 [ 5456.877683][ T254] __sys_sendmsg+0xcd/0x170 [ 5456.877683][ T254] do_syscall_64+0xc6/0x1e0 [ 5456.877683][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5456.877683][ T254] [ 5467.119852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5467.120320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.120320][ T254] dst_init+0x84/0x4a0 [ 5467.120320][ T254] dst_alloc+0x97/0x150 [ 5467.120320][ T254] ip6_dst_alloc+0x23/0x90 [ 5467.120320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5467.120320][ T254] ip6_pol_route+0x56f/0x840 [ 5467.120320][ T254] fib6_rule_lookup+0x334/0x630 [ 5467.120320][ T254] ip6_route_output_flags+0x259/0x480 [ 5467.120320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5467.120320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5467.120320][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.120320][ T254] netlink_unicast+0x449/0x710 [ 5467.120320][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.120320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.120320][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.120320][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.120320][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.120320][ T254] [ 5467.122534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.122534][ T254] netdev_get_by_index+0x5e/0x80 [ 5467.122534][ T254] fib6_nh_init+0x3d8/0x1580 [ 5467.122534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5467.122534][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5467.122534][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5467.122534][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5467.122534][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5467.122534][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5467.122534][ T254] addrconf_dad_begin+0x310/0x670 [ 5467.122534][ T254] addrconf_dad_work+0x10b/0xab0 [ 5467.122534][ T254] process_one_work+0x84d/0x18a0 [ 5467.122534][ T254] worker_thread+0x587/0xd30 [ 5467.122534][ T254] kthread+0x28a/0x350 [ 5467.122534][ T254] ret_from_fork+0x31/0x70 [ 5467.122534][ T254] ret_from_fork_asm+0x1a/0x30 [ 5467.122534][ T254] [ 5467.124679][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.124679][ T254] netdev_get_by_index+0x5e/0x80 [ 5467.124679][ T254] fib6_nh_init+0x3d8/0x1580 [ 5467.124679][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5467.124679][ T254] ip6_route_add+0x1c/0x140 [ 5467.124679][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5467.124679][ T254] inet6_addr_add+0x4f8/0xa40 [ 5467.124679][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5467.124679][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5467.124679][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.124679][ T254] netlink_unicast+0x449/0x710 [ 5467.124679][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.124679][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.124679][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.124679][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.124679][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.124679][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5467.124679][ T254] [ 5467.126928][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.126928][ T254] netdev_get_by_index+0x5e/0x80 [ 5467.126928][ T254] fib6_nh_init+0x3d8/0x1580 [ 5467.126928][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5467.126928][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5467.126928][ T254] ipv6_add_addr+0x411/0x2000 [ 5467.126928][ T254] inet6_addr_add+0x30e/0xa40 [ 5467.126928][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5467.126928][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5467.126928][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.126928][ T254] netlink_unicast+0x449/0x710 [ 5467.126928][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.126928][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.126928][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.126928][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.126928][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.126928][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5467.126928][ T254] [ 5467.129180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.129180][ T254] netdev_get_by_index+0x5e/0x80 [ 5467.129180][ T254] fib6_nh_init+0x3d8/0x1580 [ 5467.129180][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5467.129180][ T254] ip6_route_add+0x1c/0x140 [ 5467.129180][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5467.129180][ T254] addrconf_add_dev+0xe2/0x170 [ 5467.129180][ T254] inet6_addr_add+0x12f/0xa40 [ 5467.129180][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5467.129180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5467.129180][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.129180][ T254] netlink_unicast+0x449/0x710 [ 5467.129180][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.129180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.129180][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.129180][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.129180][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.129180][ T254] [ 5467.131380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.131380][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5467.131380][ T254] ipv6_find_idev+0x102/0x170 [ 5467.131380][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5467.131380][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5467.131380][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.131380][ T254] netlink_unicast+0x449/0x710 [ 5467.131380][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.131380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.131380][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.131380][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.131380][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.131380][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5467.131380][ T254] [ 5467.133113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5467.133113][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5467.133113][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5467.133113][ T254] ipv6_find_idev+0x102/0x170 [ 5467.133113][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5467.133113][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5467.133113][ T254] netlink_rcv_skb+0x130/0x360 [ 5467.133113][ T254] netlink_unicast+0x449/0x710 [ 5467.133113][ T254] netlink_sendmsg+0x723/0xbe0 [ 5467.133113][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5467.133113][ T254] ___sys_sendmsg+0xee/0x170 [ 5467.133113][ T254] __sys_sendmsg+0xcd/0x170 [ 5467.133113][ T254] do_syscall_64+0xc6/0x1e0 [ 5467.133113][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5467.133113][ T254] [ 5477.375890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5477.376377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.376377][ T254] dst_init+0x84/0x4a0 [ 5477.376377][ T254] dst_alloc+0x97/0x150 [ 5477.376377][ T254] ip6_dst_alloc+0x23/0x90 [ 5477.376377][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5477.376377][ T254] ip6_pol_route+0x56f/0x840 [ 5477.376377][ T254] fib6_rule_lookup+0x334/0x630 [ 5477.376377][ T254] ip6_route_output_flags+0x259/0x480 [ 5477.376377][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5477.376377][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5477.376377][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.376377][ T254] netlink_unicast+0x449/0x710 [ 5477.376377][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.376377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.376377][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.376377][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.376377][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.376377][ T254] [ 5477.378602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.378602][ T254] netdev_get_by_index+0x5e/0x80 [ 5477.378602][ T254] fib6_nh_init+0x3d8/0x1580 [ 5477.378602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5477.378602][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5477.378602][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5477.378602][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5477.378602][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5477.378602][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5477.378602][ T254] addrconf_dad_begin+0x310/0x670 [ 5477.378602][ T254] addrconf_dad_work+0x10b/0xab0 [ 5477.378602][ T254] process_one_work+0x84d/0x18a0 [ 5477.378602][ T254] worker_thread+0x587/0xd30 [ 5477.378602][ T254] kthread+0x28a/0x350 [ 5477.378602][ T254] ret_from_fork+0x31/0x70 [ 5477.378602][ T254] ret_from_fork_asm+0x1a/0x30 [ 5477.378602][ T254] [ 5477.380785][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.380785][ T254] netdev_get_by_index+0x5e/0x80 [ 5477.380785][ T254] fib6_nh_init+0x3d8/0x1580 [ 5477.380785][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5477.380785][ T254] ip6_route_add+0x1c/0x140 [ 5477.380785][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5477.380785][ T254] inet6_addr_add+0x4f8/0xa40 [ 5477.380785][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5477.380785][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5477.380785][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.380785][ T254] netlink_unicast+0x449/0x710 [ 5477.380785][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.380785][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.380785][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.380785][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.380785][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.380785][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5477.380785][ T254] [ 5477.383067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.383067][ T254] netdev_get_by_index+0x5e/0x80 [ 5477.383067][ T254] fib6_nh_init+0x3d8/0x1580 [ 5477.383067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5477.383067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5477.383067][ T254] ipv6_add_addr+0x411/0x2000 [ 5477.383067][ T254] inet6_addr_add+0x30e/0xa40 [ 5477.383067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5477.383067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5477.383067][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.383067][ T254] netlink_unicast+0x449/0x710 [ 5477.383067][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.383067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.383067][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.383067][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.383067][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.383067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5477.383067][ T254] [ 5477.385367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.385367][ T254] netdev_get_by_index+0x5e/0x80 [ 5477.385367][ T254] fib6_nh_init+0x3d8/0x1580 [ 5477.385367][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5477.385367][ T254] ip6_route_add+0x1c/0x140 [ 5477.385367][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5477.385367][ T254] addrconf_add_dev+0xe2/0x170 [ 5477.385367][ T254] inet6_addr_add+0x12f/0xa40 [ 5477.385367][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5477.385367][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5477.385367][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.385367][ T254] netlink_unicast+0x449/0x710 [ 5477.385367][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.385367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.385367][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.385367][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.385367][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.385367][ T254] [ 5477.387567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.387567][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5477.387567][ T254] ipv6_find_idev+0x102/0x170 [ 5477.387567][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5477.387567][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5477.387567][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.387567][ T254] netlink_unicast+0x449/0x710 [ 5477.387567][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.387567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.387567][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.387567][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.387567][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.387567][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5477.387567][ T254] [ 5477.389292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5477.389292][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5477.389292][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5477.389292][ T254] ipv6_find_idev+0x102/0x170 [ 5477.389292][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5477.389292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5477.389292][ T254] netlink_rcv_skb+0x130/0x360 [ 5477.389292][ T254] netlink_unicast+0x449/0x710 [ 5477.389292][ T254] netlink_sendmsg+0x723/0xbe0 [ 5477.389292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5477.389292][ T254] ___sys_sendmsg+0xee/0x170 [ 5477.389292][ T254] __sys_sendmsg+0xcd/0x170 [ 5477.389292][ T254] do_syscall_64+0xc6/0x1e0 [ 5477.389292][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5477.389292][ T254] [ 5487.631848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5487.632322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.632322][ T254] dst_init+0x84/0x4a0 [ 5487.632322][ T254] dst_alloc+0x97/0x150 [ 5487.632322][ T254] ip6_dst_alloc+0x23/0x90 [ 5487.632322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5487.632322][ T254] ip6_pol_route+0x56f/0x840 [ 5487.632322][ T254] fib6_rule_lookup+0x334/0x630 [ 5487.632322][ T254] ip6_route_output_flags+0x259/0x480 [ 5487.632322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5487.632322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5487.632322][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.632322][ T254] netlink_unicast+0x449/0x710 [ 5487.632322][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.632322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.632322][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.632322][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.632322][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.632322][ T254] [ 5487.634514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.634514][ T254] netdev_get_by_index+0x5e/0x80 [ 5487.634514][ T254] fib6_nh_init+0x3d8/0x1580 [ 5487.634514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5487.634514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5487.634514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5487.634514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5487.634514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5487.634514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5487.634514][ T254] addrconf_dad_begin+0x310/0x670 [ 5487.634514][ T254] addrconf_dad_work+0x10b/0xab0 [ 5487.634514][ T254] process_one_work+0x84d/0x18a0 [ 5487.634514][ T254] worker_thread+0x587/0xd30 [ 5487.634514][ T254] kthread+0x28a/0x350 [ 5487.634514][ T254] ret_from_fork+0x31/0x70 [ 5487.634514][ T254] ret_from_fork_asm+0x1a/0x30 [ 5487.634514][ T254] [ 5487.636659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.636659][ T254] netdev_get_by_index+0x5e/0x80 [ 5487.636659][ T254] fib6_nh_init+0x3d8/0x1580 [ 5487.636659][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5487.636659][ T254] ip6_route_add+0x1c/0x140 [ 5487.636659][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5487.636659][ T254] inet6_addr_add+0x4f8/0xa40 [ 5487.636659][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5487.636659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5487.636659][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.636659][ T254] netlink_unicast+0x449/0x710 [ 5487.636659][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.636659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.636659][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.636659][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.636659][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.636659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5487.636659][ T254] [ 5487.638903][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.638903][ T254] netdev_get_by_index+0x5e/0x80 [ 5487.638903][ T254] fib6_nh_init+0x3d8/0x1580 [ 5487.638903][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5487.638903][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5487.638903][ T254] ipv6_add_addr+0x411/0x2000 [ 5487.638903][ T254] inet6_addr_add+0x30e/0xa40 [ 5487.638903][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5487.638903][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5487.638903][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.638903][ T254] netlink_unicast+0x449/0x710 [ 5487.638903][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.638903][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.638903][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.638903][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.638903][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.638903][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5487.638903][ T254] [ 5487.641144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.641144][ T254] netdev_get_by_index+0x5e/0x80 [ 5487.641144][ T254] fib6_nh_init+0x3d8/0x1580 [ 5487.641144][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5487.641144][ T254] ip6_route_add+0x1c/0x140 [ 5487.641144][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5487.641144][ T254] addrconf_add_dev+0xe2/0x170 [ 5487.641144][ T254] inet6_addr_add+0x12f/0xa40 [ 5487.641144][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5487.641144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5487.641144][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.641144][ T254] netlink_unicast+0x449/0x710 [ 5487.641144][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.641144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.641144][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.641144][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.641144][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.641144][ T254] [ 5487.643356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.643356][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5487.643356][ T254] ipv6_find_idev+0x102/0x170 [ 5487.643356][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5487.643356][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5487.643356][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.643356][ T254] netlink_unicast+0x449/0x710 [ 5487.643356][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.643356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.643356][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.643356][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.643356][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.643356][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5487.643356][ T254] [ 5487.645082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5487.645082][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5487.645082][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5487.645082][ T254] ipv6_find_idev+0x102/0x170 [ 5487.645082][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5487.645082][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5487.645082][ T254] netlink_rcv_skb+0x130/0x360 [ 5487.645082][ T254] netlink_unicast+0x449/0x710 [ 5487.645082][ T254] netlink_sendmsg+0x723/0xbe0 [ 5487.645082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5487.645082][ T254] ___sys_sendmsg+0xee/0x170 [ 5487.645082][ T254] __sys_sendmsg+0xcd/0x170 [ 5487.645082][ T254] do_syscall_64+0xc6/0x1e0 [ 5487.645082][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5487.645082][ T254] [ 5497.871848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5497.872273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.872273][ T254] dst_init+0x84/0x4a0 [ 5497.872273][ T254] dst_alloc+0x97/0x150 [ 5497.872273][ T254] ip6_dst_alloc+0x23/0x90 [ 5497.872273][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5497.872273][ T254] ip6_pol_route+0x56f/0x840 [ 5497.872273][ T254] fib6_rule_lookup+0x334/0x630 [ 5497.872273][ T254] ip6_route_output_flags+0x259/0x480 [ 5497.872273][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5497.872273][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5497.872273][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.872273][ T254] netlink_unicast+0x449/0x710 [ 5497.872273][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.872273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.872273][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.872273][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.872273][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.872273][ T254] [ 5497.874576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.874576][ T254] netdev_get_by_index+0x5e/0x80 [ 5497.874576][ T254] fib6_nh_init+0x3d8/0x1580 [ 5497.874576][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5497.874576][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5497.874576][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5497.874576][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5497.874576][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5497.874576][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5497.874576][ T254] addrconf_dad_begin+0x310/0x670 [ 5497.874576][ T254] addrconf_dad_work+0x10b/0xab0 [ 5497.874576][ T254] process_one_work+0x84d/0x18a0 [ 5497.874576][ T254] worker_thread+0x587/0xd30 [ 5497.874576][ T254] kthread+0x28a/0x350 [ 5497.874576][ T254] ret_from_fork+0x31/0x70 [ 5497.874576][ T254] ret_from_fork_asm+0x1a/0x30 [ 5497.874576][ T254] [ 5497.876718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.876718][ T254] netdev_get_by_index+0x5e/0x80 [ 5497.876718][ T254] fib6_nh_init+0x3d8/0x1580 [ 5497.876718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5497.876718][ T254] ip6_route_add+0x1c/0x140 [ 5497.876718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5497.876718][ T254] inet6_addr_add+0x4f8/0xa40 [ 5497.876718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5497.876718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5497.876718][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.876718][ T254] netlink_unicast+0x449/0x710 [ 5497.876718][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.876718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.876718][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.876718][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.876718][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.876718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5497.876718][ T254] [ 5497.878959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.878959][ T254] netdev_get_by_index+0x5e/0x80 [ 5497.878959][ T254] fib6_nh_init+0x3d8/0x1580 [ 5497.878959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5497.878959][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5497.878959][ T254] ipv6_add_addr+0x411/0x2000 [ 5497.878959][ T254] inet6_addr_add+0x30e/0xa40 [ 5497.878959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5497.878959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5497.878959][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.878959][ T254] netlink_unicast+0x449/0x710 [ 5497.878959][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.878959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.878959][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.878959][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.878959][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.878959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5497.878959][ T254] [ 5497.881200][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.881200][ T254] netdev_get_by_index+0x5e/0x80 [ 5497.881200][ T254] fib6_nh_init+0x3d8/0x1580 [ 5497.881200][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5497.881200][ T254] ip6_route_add+0x1c/0x140 [ 5497.881200][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5497.881200][ T254] addrconf_add_dev+0xe2/0x170 [ 5497.881200][ T254] inet6_addr_add+0x12f/0xa40 [ 5497.881200][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5497.881200][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5497.881200][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.881200][ T254] netlink_unicast+0x449/0x710 [ 5497.881200][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.881200][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.881200][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.881200][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.881200][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.881200][ T254] [ 5497.883429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.883429][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5497.883429][ T254] ipv6_find_idev+0x102/0x170 [ 5497.883429][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5497.883429][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5497.883429][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.883429][ T254] netlink_unicast+0x449/0x710 [ 5497.883429][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.883429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.883429][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.883429][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.883429][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.883429][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5497.883429][ T254] [ 5497.885155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5497.885155][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5497.885155][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5497.885155][ T254] ipv6_find_idev+0x102/0x170 [ 5497.885155][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5497.885155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5497.885155][ T254] netlink_rcv_skb+0x130/0x360 [ 5497.885155][ T254] netlink_unicast+0x449/0x710 [ 5497.885155][ T254] netlink_sendmsg+0x723/0xbe0 [ 5497.885155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5497.885155][ T254] ___sys_sendmsg+0xee/0x170 [ 5497.885155][ T254] __sys_sendmsg+0xcd/0x170 [ 5497.885155][ T254] do_syscall_64+0xc6/0x1e0 [ 5497.885155][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5497.885155][ T254] [ 5508.119898][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5508.120342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.120342][ T254] dst_init+0x84/0x4a0 [ 5508.120342][ T254] dst_alloc+0x97/0x150 [ 5508.120342][ T254] ip6_dst_alloc+0x23/0x90 [ 5508.120342][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5508.120342][ T254] ip6_pol_route+0x56f/0x840 [ 5508.120342][ T254] fib6_rule_lookup+0x334/0x630 [ 5508.120342][ T254] ip6_route_output_flags+0x259/0x480 [ 5508.120342][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5508.120342][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5508.120342][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.120342][ T254] netlink_unicast+0x449/0x710 [ 5508.120342][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.120342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.120342][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.120342][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.120342][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.120342][ T254] [ 5508.122582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.122582][ T254] netdev_get_by_index+0x5e/0x80 [ 5508.122582][ T254] fib6_nh_init+0x3d8/0x1580 [ 5508.122582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5508.122582][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5508.122582][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5508.122582][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5508.122582][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5508.122582][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5508.122582][ T254] addrconf_dad_begin+0x310/0x670 [ 5508.122582][ T254] addrconf_dad_work+0x10b/0xab0 [ 5508.122582][ T254] process_one_work+0x84d/0x18a0 [ 5508.122582][ T254] worker_thread+0x587/0xd30 [ 5508.122582][ T254] kthread+0x28a/0x350 [ 5508.122582][ T254] ret_from_fork+0x31/0x70 [ 5508.122582][ T254] ret_from_fork_asm+0x1a/0x30 [ 5508.122582][ T254] [ 5508.124747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.124747][ T254] netdev_get_by_index+0x5e/0x80 [ 5508.124747][ T254] fib6_nh_init+0x3d8/0x1580 [ 5508.124747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5508.124747][ T254] ip6_route_add+0x1c/0x140 [ 5508.124747][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5508.124747][ T254] inet6_addr_add+0x4f8/0xa40 [ 5508.124747][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5508.124747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5508.124747][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.124747][ T254] netlink_unicast+0x449/0x710 [ 5508.124747][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.124747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.124747][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.124747][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.124747][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.124747][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5508.124747][ T254] [ 5508.127009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.127009][ T254] netdev_get_by_index+0x5e/0x80 [ 5508.127009][ T254] fib6_nh_init+0x3d8/0x1580 [ 5508.127009][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5508.127009][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5508.127009][ T254] ipv6_add_addr+0x411/0x2000 [ 5508.127009][ T254] inet6_addr_add+0x30e/0xa40 [ 5508.127009][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5508.127009][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5508.127009][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.127009][ T254] netlink_unicast+0x449/0x710 [ 5508.127009][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.127009][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.127009][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.127009][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.127009][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.127009][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5508.127009][ T254] [ 5508.129272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.129272][ T254] netdev_get_by_index+0x5e/0x80 [ 5508.129272][ T254] fib6_nh_init+0x3d8/0x1580 [ 5508.129272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5508.129272][ T254] ip6_route_add+0x1c/0x140 [ 5508.129272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5508.129272][ T254] addrconf_add_dev+0xe2/0x170 [ 5508.129272][ T254] inet6_addr_add+0x12f/0xa40 [ 5508.129272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5508.129272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5508.129272][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.129272][ T254] netlink_unicast+0x449/0x710 [ 5508.129272][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.129272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.129272][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.129272][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.129272][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.129272][ T254] [ 5508.131503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.131503][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5508.131503][ T254] ipv6_find_idev+0x102/0x170 [ 5508.131503][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5508.131503][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5508.131503][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.131503][ T254] netlink_unicast+0x449/0x710 [ 5508.131503][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.131503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.131503][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.131503][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.131503][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.131503][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5508.131503][ T254] [ 5508.133265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5508.133265][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5508.133265][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5508.133265][ T254] ipv6_find_idev+0x102/0x170 [ 5508.133265][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5508.133265][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5508.133265][ T254] netlink_rcv_skb+0x130/0x360 [ 5508.133265][ T254] netlink_unicast+0x449/0x710 [ 5508.133265][ T254] netlink_sendmsg+0x723/0xbe0 [ 5508.133265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5508.133265][ T254] ___sys_sendmsg+0xee/0x170 [ 5508.133265][ T254] __sys_sendmsg+0xcd/0x170 [ 5508.133265][ T254] do_syscall_64+0xc6/0x1e0 [ 5508.133265][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5508.133265][ T254] [ 5518.375822][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5518.376260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.376260][ T254] dst_init+0x84/0x4a0 [ 5518.376260][ T254] dst_alloc+0x97/0x150 [ 5518.376260][ T254] ip6_dst_alloc+0x23/0x90 [ 5518.376260][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5518.376260][ T254] ip6_pol_route+0x56f/0x840 [ 5518.376260][ T254] fib6_rule_lookup+0x334/0x630 [ 5518.376260][ T254] ip6_route_output_flags+0x259/0x480 [ 5518.376260][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5518.376260][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5518.376260][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.376260][ T254] netlink_unicast+0x449/0x710 [ 5518.376260][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.376260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.376260][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.376260][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.376260][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.376260][ T254] [ 5518.378474][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.378474][ T254] netdev_get_by_index+0x5e/0x80 [ 5518.378474][ T254] fib6_nh_init+0x3d8/0x1580 [ 5518.378474][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5518.378474][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5518.378474][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5518.378474][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5518.378474][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5518.378474][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5518.378474][ T254] addrconf_dad_begin+0x310/0x670 [ 5518.378474][ T254] addrconf_dad_work+0x10b/0xab0 [ 5518.378474][ T254] process_one_work+0x84d/0x18a0 [ 5518.378474][ T254] worker_thread+0x587/0xd30 [ 5518.378474][ T254] kthread+0x28a/0x350 [ 5518.378474][ T254] ret_from_fork+0x31/0x70 [ 5518.378474][ T254] ret_from_fork_asm+0x1a/0x30 [ 5518.378474][ T254] [ 5518.380746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.380746][ T254] netdev_get_by_index+0x5e/0x80 [ 5518.380746][ T254] fib6_nh_init+0x3d8/0x1580 [ 5518.380746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5518.380746][ T254] ip6_route_add+0x1c/0x140 [ 5518.380746][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5518.380746][ T254] inet6_addr_add+0x4f8/0xa40 [ 5518.380746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5518.380746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5518.380746][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.380746][ T254] netlink_unicast+0x449/0x710 [ 5518.380746][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.380746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.380746][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.380746][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.380746][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.380746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5518.380746][ T254] [ 5518.383039][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.383039][ T254] netdev_get_by_index+0x5e/0x80 [ 5518.383039][ T254] fib6_nh_init+0x3d8/0x1580 [ 5518.383039][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5518.383039][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5518.383039][ T254] ipv6_add_addr+0x411/0x2000 [ 5518.383039][ T254] inet6_addr_add+0x30e/0xa40 [ 5518.383039][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5518.383039][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5518.383039][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.383039][ T254] netlink_unicast+0x449/0x710 [ 5518.383039][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.383039][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.383039][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.383039][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.383039][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.383039][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5518.383039][ T254] [ 5518.385296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.385296][ T254] netdev_get_by_index+0x5e/0x80 [ 5518.385296][ T254] fib6_nh_init+0x3d8/0x1580 [ 5518.385296][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5518.385296][ T254] ip6_route_add+0x1c/0x140 [ 5518.385296][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5518.385296][ T254] addrconf_add_dev+0xe2/0x170 [ 5518.385296][ T254] inet6_addr_add+0x12f/0xa40 [ 5518.385296][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5518.385296][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5518.385296][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.385296][ T254] netlink_unicast+0x449/0x710 [ 5518.385296][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.385296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.385296][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.385296][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.385296][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.385296][ T254] [ 5518.387509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.387509][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5518.387509][ T254] ipv6_find_idev+0x102/0x170 [ 5518.387509][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5518.387509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5518.387509][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.387509][ T254] netlink_unicast+0x449/0x710 [ 5518.387509][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.387509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.387509][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.387509][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.387509][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.387509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5518.387509][ T254] [ 5518.389243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5518.389243][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5518.389243][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5518.389243][ T254] ipv6_find_idev+0x102/0x170 [ 5518.389243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5518.389243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5518.389243][ T254] netlink_rcv_skb+0x130/0x360 [ 5518.389243][ T254] netlink_unicast+0x449/0x710 [ 5518.389243][ T254] netlink_sendmsg+0x723/0xbe0 [ 5518.389243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5518.389243][ T254] ___sys_sendmsg+0xee/0x170 [ 5518.389243][ T254] __sys_sendmsg+0xcd/0x170 [ 5518.389243][ T254] do_syscall_64+0xc6/0x1e0 [ 5518.389243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5518.389243][ T254] [ 5528.631917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5528.632685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.632685][ T254] dst_init+0x84/0x4a0 [ 5528.632685][ T254] dst_alloc+0x97/0x150 [ 5528.632685][ T254] ip6_dst_alloc+0x23/0x90 [ 5528.632685][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5528.632685][ T254] ip6_pol_route+0x56f/0x840 [ 5528.632685][ T254] fib6_rule_lookup+0x334/0x630 [ 5528.632685][ T254] ip6_route_output_flags+0x259/0x480 [ 5528.632685][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5528.632685][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5528.632685][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.632685][ T254] netlink_unicast+0x449/0x710 [ 5528.632685][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.632685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.632685][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.632685][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.632685][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.632685][ T254] [ 5528.634914][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.634914][ T254] netdev_get_by_index+0x5e/0x80 [ 5528.634914][ T254] fib6_nh_init+0x3d8/0x1580 [ 5528.634914][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5528.634914][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5528.634914][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5528.634914][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5528.634914][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5528.634914][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5528.634914][ T254] addrconf_dad_begin+0x310/0x670 [ 5528.634914][ T254] addrconf_dad_work+0x10b/0xab0 [ 5528.634914][ T254] process_one_work+0x84d/0x18a0 [ 5528.634914][ T254] worker_thread+0x587/0xd30 [ 5528.634914][ T254] kthread+0x28a/0x350 [ 5528.634914][ T254] ret_from_fork+0x31/0x70 [ 5528.634914][ T254] ret_from_fork_asm+0x1a/0x30 [ 5528.634914][ T254] [ 5528.637078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.637078][ T254] netdev_get_by_index+0x5e/0x80 [ 5528.637078][ T254] fib6_nh_init+0x3d8/0x1580 [ 5528.637078][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5528.637078][ T254] ip6_route_add+0x1c/0x140 [ 5528.637078][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5528.637078][ T254] inet6_addr_add+0x4f8/0xa40 [ 5528.637078][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5528.637078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5528.637078][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.637078][ T254] netlink_unicast+0x449/0x710 [ 5528.637078][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.637078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.637078][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.637078][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.637078][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.637078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5528.637078][ T254] [ 5528.639337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.639337][ T254] netdev_get_by_index+0x5e/0x80 [ 5528.639337][ T254] fib6_nh_init+0x3d8/0x1580 [ 5528.639337][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5528.639337][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5528.639337][ T254] ipv6_add_addr+0x411/0x2000 [ 5528.639337][ T254] inet6_addr_add+0x30e/0xa40 [ 5528.639337][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5528.639337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5528.639337][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.639337][ T254] netlink_unicast+0x449/0x710 [ 5528.639337][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.639337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.639337][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.639337][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.639337][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.639337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5528.639337][ T254] [ 5528.641613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.641613][ T254] netdev_get_by_index+0x5e/0x80 [ 5528.641613][ T254] fib6_nh_init+0x3d8/0x1580 [ 5528.641613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5528.641613][ T254] ip6_route_add+0x1c/0x140 [ 5528.641613][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5528.641613][ T254] addrconf_add_dev+0xe2/0x170 [ 5528.641613][ T254] inet6_addr_add+0x12f/0xa40 [ 5528.641613][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5528.641613][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5528.641613][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.641613][ T254] netlink_unicast+0x449/0x710 [ 5528.641613][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.641613][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.641613][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.641613][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.641613][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.641613][ T254] [ 5528.643829][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.643829][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5528.643829][ T254] ipv6_find_idev+0x102/0x170 [ 5528.643829][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5528.643829][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5528.643829][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.643829][ T254] netlink_unicast+0x449/0x710 [ 5528.643829][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.643829][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.643829][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.643829][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.643829][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.643829][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5528.643829][ T254] [ 5528.645590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5528.645590][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5528.645590][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5528.645590][ T254] ipv6_find_idev+0x102/0x170 [ 5528.645590][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5528.645590][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5528.645590][ T254] netlink_rcv_skb+0x130/0x360 [ 5528.645590][ T254] netlink_unicast+0x449/0x710 [ 5528.645590][ T254] netlink_sendmsg+0x723/0xbe0 [ 5528.645590][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5528.645590][ T254] ___sys_sendmsg+0xee/0x170 [ 5528.645590][ T254] __sys_sendmsg+0xcd/0x170 [ 5528.645590][ T254] do_syscall_64+0xc6/0x1e0 [ 5528.645590][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5528.645590][ T254] [ 5538.887885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5538.888368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.888368][ T254] dst_init+0x84/0x4a0 [ 5538.888368][ T254] dst_alloc+0x97/0x150 [ 5538.888368][ T254] ip6_dst_alloc+0x23/0x90 [ 5538.888368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5538.888368][ T254] ip6_pol_route+0x56f/0x840 [ 5538.888368][ T254] fib6_rule_lookup+0x334/0x630 [ 5538.888368][ T254] ip6_route_output_flags+0x259/0x480 [ 5538.888368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5538.888368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5538.888368][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.888368][ T254] netlink_unicast+0x449/0x710 [ 5538.888368][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.888368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.888368][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.888368][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.888368][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.888368][ T254] [ 5538.890564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.890564][ T254] netdev_get_by_index+0x5e/0x80 [ 5538.890564][ T254] fib6_nh_init+0x3d8/0x1580 [ 5538.890564][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5538.890564][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5538.890564][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5538.890564][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5538.890564][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5538.890564][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5538.890564][ T254] addrconf_dad_begin+0x310/0x670 [ 5538.890564][ T254] addrconf_dad_work+0x10b/0xab0 [ 5538.890564][ T254] process_one_work+0x84d/0x18a0 [ 5538.890564][ T254] worker_thread+0x587/0xd30 [ 5538.890564][ T254] kthread+0x28a/0x350 [ 5538.890564][ T254] ret_from_fork+0x31/0x70 [ 5538.890564][ T254] ret_from_fork_asm+0x1a/0x30 [ 5538.890564][ T254] [ 5538.892713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.892713][ T254] netdev_get_by_index+0x5e/0x80 [ 5538.892713][ T254] fib6_nh_init+0x3d8/0x1580 [ 5538.892713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5538.892713][ T254] ip6_route_add+0x1c/0x140 [ 5538.892713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5538.892713][ T254] inet6_addr_add+0x4f8/0xa40 [ 5538.892713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5538.892713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5538.892713][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.892713][ T254] netlink_unicast+0x449/0x710 [ 5538.892713][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.892713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.892713][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.892713][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.892713][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.892713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5538.892713][ T254] [ 5538.894961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.894961][ T254] netdev_get_by_index+0x5e/0x80 [ 5538.894961][ T254] fib6_nh_init+0x3d8/0x1580 [ 5538.894961][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5538.894961][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5538.894961][ T254] ipv6_add_addr+0x411/0x2000 [ 5538.894961][ T254] inet6_addr_add+0x30e/0xa40 [ 5538.894961][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5538.894961][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5538.894961][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.894961][ T254] netlink_unicast+0x449/0x710 [ 5538.894961][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.894961][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.894961][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.894961][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.894961][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.894961][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5538.894961][ T254] [ 5538.897190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.897190][ T254] netdev_get_by_index+0x5e/0x80 [ 5538.897190][ T254] fib6_nh_init+0x3d8/0x1580 [ 5538.897190][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5538.897190][ T254] ip6_route_add+0x1c/0x140 [ 5538.897190][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5538.897190][ T254] addrconf_add_dev+0xe2/0x170 [ 5538.897190][ T254] inet6_addr_add+0x12f/0xa40 [ 5538.897190][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5538.897190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5538.897190][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.897190][ T254] netlink_unicast+0x449/0x710 [ 5538.897190][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.897190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.897190][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.897190][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.897190][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.897190][ T254] [ 5538.899383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.899383][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5538.899383][ T254] ipv6_find_idev+0x102/0x170 [ 5538.899383][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5538.899383][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5538.899383][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.899383][ T254] netlink_unicast+0x449/0x710 [ 5538.899383][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.899383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.899383][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.899383][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.899383][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.899383][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5538.899383][ T254] [ 5538.901102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5538.901102][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5538.901102][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5538.901102][ T254] ipv6_find_idev+0x102/0x170 [ 5538.901102][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5538.901102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5538.901102][ T254] netlink_rcv_skb+0x130/0x360 [ 5538.901102][ T254] netlink_unicast+0x449/0x710 [ 5538.901102][ T254] netlink_sendmsg+0x723/0xbe0 [ 5538.901102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5538.901102][ T254] ___sys_sendmsg+0xee/0x170 [ 5538.901102][ T254] __sys_sendmsg+0xcd/0x170 [ 5538.901102][ T254] do_syscall_64+0xc6/0x1e0 [ 5538.901102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5538.901102][ T254] [ 5549.143838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5549.144312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.144312][ T254] dst_init+0x84/0x4a0 [ 5549.144312][ T254] dst_alloc+0x97/0x150 [ 5549.144312][ T254] ip6_dst_alloc+0x23/0x90 [ 5549.144312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5549.144312][ T254] ip6_pol_route+0x56f/0x840 [ 5549.144312][ T254] fib6_rule_lookup+0x334/0x630 [ 5549.144312][ T254] ip6_route_output_flags+0x259/0x480 [ 5549.144312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5549.144312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5549.144312][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.144312][ T254] netlink_unicast+0x449/0x710 [ 5549.144312][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.144312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.144312][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.144312][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.144312][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.144312][ T254] [ 5549.146508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.146508][ T254] netdev_get_by_index+0x5e/0x80 [ 5549.146508][ T254] fib6_nh_init+0x3d8/0x1580 [ 5549.146508][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5549.146508][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5549.146508][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5549.146508][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5549.146508][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5549.146508][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5549.146508][ T254] addrconf_dad_begin+0x310/0x670 [ 5549.146508][ T254] addrconf_dad_work+0x10b/0xab0 [ 5549.146508][ T254] process_one_work+0x84d/0x18a0 [ 5549.146508][ T254] worker_thread+0x587/0xd30 [ 5549.146508][ T254] kthread+0x28a/0x350 [ 5549.146508][ T254] ret_from_fork+0x31/0x70 [ 5549.146508][ T254] ret_from_fork_asm+0x1a/0x30 [ 5549.146508][ T254] [ 5549.148763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.148763][ T254] netdev_get_by_index+0x5e/0x80 [ 5549.148763][ T254] fib6_nh_init+0x3d8/0x1580 [ 5549.148763][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5549.148763][ T254] ip6_route_add+0x1c/0x140 [ 5549.148763][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5549.148763][ T254] inet6_addr_add+0x4f8/0xa40 [ 5549.148763][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5549.148763][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5549.148763][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.148763][ T254] netlink_unicast+0x449/0x710 [ 5549.148763][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.148763][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.148763][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.148763][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.148763][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.148763][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5549.148763][ T254] [ 5549.151004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.151004][ T254] netdev_get_by_index+0x5e/0x80 [ 5549.151004][ T254] fib6_nh_init+0x3d8/0x1580 [ 5549.151004][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5549.151004][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5549.151004][ T254] ipv6_add_addr+0x411/0x2000 [ 5549.151004][ T254] inet6_addr_add+0x30e/0xa40 [ 5549.151004][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5549.151004][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5549.151004][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.151004][ T254] netlink_unicast+0x449/0x710 [ 5549.151004][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.151004][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.151004][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.151004][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.151004][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.151004][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5549.151004][ T254] [ 5549.153252][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.153252][ T254] netdev_get_by_index+0x5e/0x80 [ 5549.153252][ T254] fib6_nh_init+0x3d8/0x1580 [ 5549.153252][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5549.153252][ T254] ip6_route_add+0x1c/0x140 [ 5549.153252][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5549.153252][ T254] addrconf_add_dev+0xe2/0x170 [ 5549.153252][ T254] inet6_addr_add+0x12f/0xa40 [ 5549.153252][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5549.153252][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5549.153252][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.153252][ T254] netlink_unicast+0x449/0x710 [ 5549.153252][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.153252][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.153252][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.153252][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.153252][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.153252][ T254] [ 5549.155447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.155447][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5549.155447][ T254] ipv6_find_idev+0x102/0x170 [ 5549.155447][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5549.155447][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5549.155447][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.155447][ T254] netlink_unicast+0x449/0x710 [ 5549.155447][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.155447][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.155447][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.155447][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.155447][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.155447][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5549.155447][ T254] [ 5549.157168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5549.157168][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5549.157168][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5549.157168][ T254] ipv6_find_idev+0x102/0x170 [ 5549.157168][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5549.157168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5549.157168][ T254] netlink_rcv_skb+0x130/0x360 [ 5549.157168][ T254] netlink_unicast+0x449/0x710 [ 5549.157168][ T254] netlink_sendmsg+0x723/0xbe0 [ 5549.157168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5549.157168][ T254] ___sys_sendmsg+0xee/0x170 [ 5549.157168][ T254] __sys_sendmsg+0xcd/0x170 [ 5549.157168][ T254] do_syscall_64+0xc6/0x1e0 [ 5549.157168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5549.157168][ T254] [ 5559.271872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5559.272343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.272343][ T254] dst_init+0x84/0x4a0 [ 5559.272343][ T254] dst_alloc+0x97/0x150 [ 5559.272343][ T254] ip6_dst_alloc+0x23/0x90 [ 5559.272343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5559.272343][ T254] ip6_pol_route+0x56f/0x840 [ 5559.272343][ T254] fib6_rule_lookup+0x334/0x630 [ 5559.272343][ T254] ip6_route_output_flags+0x259/0x480 [ 5559.272343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5559.272343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5559.272343][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.272343][ T254] netlink_unicast+0x449/0x710 [ 5559.272343][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.272343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.272343][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.272343][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.272343][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.272343][ T254] [ 5559.274545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.274545][ T254] netdev_get_by_index+0x5e/0x80 [ 5559.274545][ T254] fib6_nh_init+0x3d8/0x1580 [ 5559.274545][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5559.274545][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5559.274545][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5559.274545][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5559.274545][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5559.274545][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5559.274545][ T254] addrconf_dad_begin+0x310/0x670 [ 5559.274545][ T254] addrconf_dad_work+0x10b/0xab0 [ 5559.274545][ T254] process_one_work+0x84d/0x18a0 [ 5559.274545][ T254] worker_thread+0x587/0xd30 [ 5559.274545][ T254] kthread+0x28a/0x350 [ 5559.274545][ T254] ret_from_fork+0x31/0x70 [ 5559.274545][ T254] ret_from_fork_asm+0x1a/0x30 [ 5559.274545][ T254] [ 5559.276707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.276707][ T254] netdev_get_by_index+0x5e/0x80 [ 5559.276707][ T254] fib6_nh_init+0x3d8/0x1580 [ 5559.276707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5559.276707][ T254] ip6_route_add+0x1c/0x140 [ 5559.276707][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5559.276707][ T254] inet6_addr_add+0x4f8/0xa40 [ 5559.276707][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5559.276707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5559.276707][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.276707][ T254] netlink_unicast+0x449/0x710 [ 5559.276707][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.276707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.276707][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.276707][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.276707][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.276707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5559.276707][ T254] [ 5559.278959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.278959][ T254] netdev_get_by_index+0x5e/0x80 [ 5559.278959][ T254] fib6_nh_init+0x3d8/0x1580 [ 5559.278959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5559.278959][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5559.278959][ T254] ipv6_add_addr+0x411/0x2000 [ 5559.278959][ T254] inet6_addr_add+0x30e/0xa40 [ 5559.278959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5559.278959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5559.278959][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.278959][ T254] netlink_unicast+0x449/0x710 [ 5559.278959][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.278959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.278959][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.278959][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.278959][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.278959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5559.278959][ T254] [ 5559.281192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.281192][ T254] netdev_get_by_index+0x5e/0x80 [ 5559.281192][ T254] fib6_nh_init+0x3d8/0x1580 [ 5559.281192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5559.281192][ T254] ip6_route_add+0x1c/0x140 [ 5559.281192][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5559.281192][ T254] addrconf_add_dev+0xe2/0x170 [ 5559.281192][ T254] inet6_addr_add+0x12f/0xa40 [ 5559.281192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5559.281192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5559.281192][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.281192][ T254] netlink_unicast+0x449/0x710 [ 5559.281192][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.281192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.281192][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.281192][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.281192][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.281192][ T254] [ 5559.283416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.283416][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5559.283416][ T254] ipv6_find_idev+0x102/0x170 [ 5559.283416][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5559.283416][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5559.283416][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.283416][ T254] netlink_unicast+0x449/0x710 [ 5559.283416][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.283416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.283416][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.283416][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.283416][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.283416][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5559.283416][ T254] [ 5559.285139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5559.285139][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5559.285139][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5559.285139][ T254] ipv6_find_idev+0x102/0x170 [ 5559.285139][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5559.285139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5559.285139][ T254] netlink_rcv_skb+0x130/0x360 [ 5559.285139][ T254] netlink_unicast+0x449/0x710 [ 5559.285139][ T254] netlink_sendmsg+0x723/0xbe0 [ 5559.285139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5559.285139][ T254] ___sys_sendmsg+0xee/0x170 [ 5559.285139][ T254] __sys_sendmsg+0xcd/0x170 [ 5559.285139][ T254] do_syscall_64+0xc6/0x1e0 [ 5559.285139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5559.285139][ T254] [ 5569.351928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5569.352989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.352989][ T254] dst_init+0x84/0x4a0 [ 5569.352989][ T254] dst_alloc+0x97/0x150 [ 5569.352989][ T254] ip6_dst_alloc+0x23/0x90 [ 5569.352989][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5569.352989][ T254] ip6_pol_route+0x56f/0x840 [ 5569.352989][ T254] fib6_rule_lookup+0x334/0x630 [ 5569.352989][ T254] ip6_route_output_flags+0x259/0x480 [ 5569.352989][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5569.352989][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5569.352989][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.352989][ T254] netlink_unicast+0x449/0x710 [ 5569.352989][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.352989][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.352989][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.352989][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.352989][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.352989][ T254] [ 5569.355221][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.355221][ T254] netdev_get_by_index+0x5e/0x80 [ 5569.355221][ T254] fib6_nh_init+0x3d8/0x1580 [ 5569.355221][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5569.355221][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5569.355221][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5569.355221][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5569.355221][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5569.355221][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5569.355221][ T254] addrconf_dad_begin+0x310/0x670 [ 5569.355221][ T254] addrconf_dad_work+0x10b/0xab0 [ 5569.355221][ T254] process_one_work+0x84d/0x18a0 [ 5569.355221][ T254] worker_thread+0x587/0xd30 [ 5569.355221][ T254] kthread+0x28a/0x350 [ 5569.355221][ T254] ret_from_fork+0x31/0x70 [ 5569.355221][ T254] ret_from_fork_asm+0x1a/0x30 [ 5569.355221][ T254] [ 5569.357392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.357392][ T254] netdev_get_by_index+0x5e/0x80 [ 5569.357392][ T254] fib6_nh_init+0x3d8/0x1580 [ 5569.357392][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5569.357392][ T254] ip6_route_add+0x1c/0x140 [ 5569.357392][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5569.357392][ T254] inet6_addr_add+0x4f8/0xa40 [ 5569.357392][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5569.357392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5569.357392][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.357392][ T254] netlink_unicast+0x449/0x710 [ 5569.357392][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.357392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.357392][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.357392][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.357392][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.357392][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5569.357392][ T254] [ 5569.359627][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.359627][ T254] netdev_get_by_index+0x5e/0x80 [ 5569.359627][ T254] fib6_nh_init+0x3d8/0x1580 [ 5569.359627][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5569.359627][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5569.359627][ T254] ipv6_add_addr+0x411/0x2000 [ 5569.359627][ T254] inet6_addr_add+0x30e/0xa40 [ 5569.359627][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5569.359627][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5569.359627][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.359627][ T254] netlink_unicast+0x449/0x710 [ 5569.359627][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.359627][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.359627][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.359627][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.359627][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.359627][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5569.359627][ T254] [ 5569.361878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.361878][ T254] netdev_get_by_index+0x5e/0x80 [ 5569.361878][ T254] fib6_nh_init+0x3d8/0x1580 [ 5569.361878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5569.361878][ T254] ip6_route_add+0x1c/0x140 [ 5569.361878][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5569.361878][ T254] addrconf_add_dev+0xe2/0x170 [ 5569.361878][ T254] inet6_addr_add+0x12f/0xa40 [ 5569.361878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5569.361878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5569.361878][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.361878][ T254] netlink_unicast+0x449/0x710 [ 5569.361878][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.361878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.361878][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.361878][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.361878][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.361878][ T254] [ 5569.364079][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.364079][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5569.364079][ T254] ipv6_find_idev+0x102/0x170 [ 5569.364079][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5569.364079][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5569.364079][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.364079][ T254] netlink_unicast+0x449/0x710 [ 5569.364079][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.364079][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.364079][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.364079][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.364079][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.364079][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5569.364079][ T254] [ 5569.365828][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5569.365828][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5569.365828][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5569.365828][ T254] ipv6_find_idev+0x102/0x170 [ 5569.365828][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5569.365828][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5569.365828][ T254] netlink_rcv_skb+0x130/0x360 [ 5569.365828][ T254] netlink_unicast+0x449/0x710 [ 5569.365828][ T254] netlink_sendmsg+0x723/0xbe0 [ 5569.365828][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5569.365828][ T254] ___sys_sendmsg+0xee/0x170 [ 5569.365828][ T254] __sys_sendmsg+0xcd/0x170 [ 5569.365828][ T254] do_syscall_64+0xc6/0x1e0 [ 5569.365828][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5569.365828][ T254] [ 5579.375891][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5579.376360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.376360][ T254] dst_init+0x84/0x4a0 [ 5579.376360][ T254] dst_alloc+0x97/0x150 [ 5579.376360][ T254] ip6_dst_alloc+0x23/0x90 [ 5579.376360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5579.376360][ T254] ip6_pol_route+0x56f/0x840 [ 5579.376360][ T254] fib6_rule_lookup+0x334/0x630 [ 5579.376360][ T254] ip6_route_output_flags+0x259/0x480 [ 5579.376360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5579.376360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5579.376360][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.376360][ T254] netlink_unicast+0x449/0x710 [ 5579.376360][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.376360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.376360][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.376360][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.376360][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.376360][ T254] [ 5579.378561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.378561][ T254] netdev_get_by_index+0x5e/0x80 [ 5579.378561][ T254] fib6_nh_init+0x3d8/0x1580 [ 5579.378561][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5579.378561][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5579.378561][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5579.378561][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5579.378561][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5579.378561][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5579.378561][ T254] addrconf_dad_begin+0x310/0x670 [ 5579.378561][ T254] addrconf_dad_work+0x10b/0xab0 [ 5579.378561][ T254] process_one_work+0x84d/0x18a0 [ 5579.378561][ T254] worker_thread+0x587/0xd30 [ 5579.378561][ T254] kthread+0x28a/0x350 [ 5579.378561][ T254] ret_from_fork+0x31/0x70 [ 5579.378561][ T254] ret_from_fork_asm+0x1a/0x30 [ 5579.378561][ T254] [ 5579.380706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.380706][ T254] netdev_get_by_index+0x5e/0x80 [ 5579.380706][ T254] fib6_nh_init+0x3d8/0x1580 [ 5579.380706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5579.380706][ T254] ip6_route_add+0x1c/0x140 [ 5579.380706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5579.380706][ T254] inet6_addr_add+0x4f8/0xa40 [ 5579.380706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5579.380706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5579.380706][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.380706][ T254] netlink_unicast+0x449/0x710 [ 5579.380706][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.380706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.380706][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.380706][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.380706][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.380706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5579.380706][ T254] [ 5579.382967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.382967][ T254] netdev_get_by_index+0x5e/0x80 [ 5579.382967][ T254] fib6_nh_init+0x3d8/0x1580 [ 5579.382967][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5579.382967][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5579.382967][ T254] ipv6_add_addr+0x411/0x2000 [ 5579.382967][ T254] inet6_addr_add+0x30e/0xa40 [ 5579.382967][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5579.382967][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5579.382967][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.382967][ T254] netlink_unicast+0x449/0x710 [ 5579.382967][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.382967][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.382967][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.382967][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.382967][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.382967][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5579.382967][ T254] [ 5579.385205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.385205][ T254] netdev_get_by_index+0x5e/0x80 [ 5579.385205][ T254] fib6_nh_init+0x3d8/0x1580 [ 5579.385205][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5579.385205][ T254] ip6_route_add+0x1c/0x140 [ 5579.385205][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5579.385205][ T254] addrconf_add_dev+0xe2/0x170 [ 5579.385205][ T254] inet6_addr_add+0x12f/0xa40 [ 5579.385205][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5579.385205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5579.385205][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.385205][ T254] netlink_unicast+0x449/0x710 [ 5579.385205][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.385205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.385205][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.385205][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.385205][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.385205][ T254] [ 5579.387413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.387413][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5579.387413][ T254] ipv6_find_idev+0x102/0x170 [ 5579.387413][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5579.387413][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5579.387413][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.387413][ T254] netlink_unicast+0x449/0x710 [ 5579.387413][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.387413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.387413][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.387413][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.387413][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.387413][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5579.387413][ T254] [ 5579.389146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5579.389146][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5579.389146][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5579.389146][ T254] ipv6_find_idev+0x102/0x170 [ 5579.389146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5579.389146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5579.389146][ T254] netlink_rcv_skb+0x130/0x360 [ 5579.389146][ T254] netlink_unicast+0x449/0x710 [ 5579.389146][ T254] netlink_sendmsg+0x723/0xbe0 [ 5579.389146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5579.389146][ T254] ___sys_sendmsg+0xee/0x170 [ 5579.389146][ T254] __sys_sendmsg+0xcd/0x170 [ 5579.389146][ T254] do_syscall_64+0xc6/0x1e0 [ 5579.389146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5579.389146][ T254] [ 5589.639921][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5589.640750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.640750][ T254] dst_init+0x84/0x4a0 [ 5589.640750][ T254] dst_alloc+0x97/0x150 [ 5589.640750][ T254] ip6_dst_alloc+0x23/0x90 [ 5589.640750][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5589.640750][ T254] ip6_pol_route+0x56f/0x840 [ 5589.640750][ T254] fib6_rule_lookup+0x334/0x630 [ 5589.640750][ T254] ip6_route_output_flags+0x259/0x480 [ 5589.640750][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5589.640750][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5589.640750][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.640750][ T254] netlink_unicast+0x449/0x710 [ 5589.640750][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.640750][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.640750][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.640750][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.640750][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.640750][ T254] [ 5589.643005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.643005][ T254] netdev_get_by_index+0x5e/0x80 [ 5589.643005][ T254] fib6_nh_init+0x3d8/0x1580 [ 5589.643005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5589.643005][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5589.643005][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5589.643005][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5589.643005][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5589.643005][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5589.643005][ T254] addrconf_dad_begin+0x310/0x670 [ 5589.643005][ T254] addrconf_dad_work+0x10b/0xab0 [ 5589.643005][ T254] process_one_work+0x84d/0x18a0 [ 5589.643005][ T254] worker_thread+0x587/0xd30 [ 5589.643005][ T254] kthread+0x28a/0x350 [ 5589.643005][ T254] ret_from_fork+0x31/0x70 [ 5589.643005][ T254] ret_from_fork_asm+0x1a/0x30 [ 5589.643005][ T254] [ 5589.645160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.645160][ T254] netdev_get_by_index+0x5e/0x80 [ 5589.645160][ T254] fib6_nh_init+0x3d8/0x1580 [ 5589.645160][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5589.645160][ T254] ip6_route_add+0x1c/0x140 [ 5589.645160][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5589.645160][ T254] inet6_addr_add+0x4f8/0xa40 [ 5589.645160][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5589.645160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5589.645160][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.645160][ T254] netlink_unicast+0x449/0x710 [ 5589.645160][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.645160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.645160][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.645160][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.645160][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.645160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5589.645160][ T254] [ 5589.647449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.647449][ T254] netdev_get_by_index+0x5e/0x80 [ 5589.647449][ T254] fib6_nh_init+0x3d8/0x1580 [ 5589.647449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5589.647449][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5589.647449][ T254] ipv6_add_addr+0x411/0x2000 [ 5589.647449][ T254] inet6_addr_add+0x30e/0xa40 [ 5589.647449][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5589.647449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5589.647449][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.647449][ T254] netlink_unicast+0x449/0x710 [ 5589.647449][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.647449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.647449][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.647449][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.647449][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.647449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5589.647449][ T254] [ 5589.649752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.649752][ T254] netdev_get_by_index+0x5e/0x80 [ 5589.649752][ T254] fib6_nh_init+0x3d8/0x1580 [ 5589.649752][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5589.649752][ T254] ip6_route_add+0x1c/0x140 [ 5589.649752][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5589.649752][ T254] addrconf_add_dev+0xe2/0x170 [ 5589.649752][ T254] inet6_addr_add+0x12f/0xa40 [ 5589.649752][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5589.649752][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5589.649752][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.649752][ T254] netlink_unicast+0x449/0x710 [ 5589.649752][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.649752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.649752][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.649752][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.649752][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.649752][ T254] [ 5589.651957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.651957][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5589.651957][ T254] ipv6_find_idev+0x102/0x170 [ 5589.651957][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5589.651957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5589.651957][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.651957][ T254] netlink_unicast+0x449/0x710 [ 5589.651957][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.651957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.651957][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.651957][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.651957][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.651957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5589.651957][ T254] [ 5589.653680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5589.653680][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5589.653680][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5589.653680][ T254] ipv6_find_idev+0x102/0x170 [ 5589.653680][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5589.653680][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5589.653680][ T254] netlink_rcv_skb+0x130/0x360 [ 5589.653680][ T254] netlink_unicast+0x449/0x710 [ 5589.653680][ T254] netlink_sendmsg+0x723/0xbe0 [ 5589.653680][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5589.653680][ T254] ___sys_sendmsg+0xee/0x170 [ 5589.653680][ T254] __sys_sendmsg+0xcd/0x170 [ 5589.653680][ T254] do_syscall_64+0xc6/0x1e0 [ 5589.653680][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5589.653680][ T254] [ 5599.863948][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5599.864814][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.864814][ T254] dst_init+0x84/0x4a0 [ 5599.864814][ T254] dst_alloc+0x97/0x150 [ 5599.864814][ T254] ip6_dst_alloc+0x23/0x90 [ 5599.864814][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5599.864814][ T254] ip6_pol_route+0x56f/0x840 [ 5599.864814][ T254] fib6_rule_lookup+0x334/0x630 [ 5599.864814][ T254] ip6_route_output_flags+0x259/0x480 [ 5599.864814][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5599.864814][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5599.864814][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.864814][ T254] netlink_unicast+0x449/0x710 [ 5599.864814][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.864814][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.864814][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.864814][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.864814][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.864814][ T254] [ 5599.867044][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.867044][ T254] netdev_get_by_index+0x5e/0x80 [ 5599.867044][ T254] fib6_nh_init+0x3d8/0x1580 [ 5599.867044][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5599.867044][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5599.867044][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5599.867044][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5599.867044][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5599.867044][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5599.867044][ T254] addrconf_dad_begin+0x310/0x670 [ 5599.867044][ T254] addrconf_dad_work+0x10b/0xab0 [ 5599.867044][ T254] process_one_work+0x84d/0x18a0 [ 5599.867044][ T254] worker_thread+0x587/0xd30 [ 5599.867044][ T254] kthread+0x28a/0x350 [ 5599.867044][ T254] ret_from_fork+0x31/0x70 [ 5599.867044][ T254] ret_from_fork_asm+0x1a/0x30 [ 5599.867044][ T254] [ 5599.869209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.869209][ T254] netdev_get_by_index+0x5e/0x80 [ 5599.869209][ T254] fib6_nh_init+0x3d8/0x1580 [ 5599.869209][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5599.869209][ T254] ip6_route_add+0x1c/0x140 [ 5599.869209][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5599.869209][ T254] inet6_addr_add+0x4f8/0xa40 [ 5599.869209][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5599.869209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5599.869209][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.869209][ T254] netlink_unicast+0x449/0x710 [ 5599.869209][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.869209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.869209][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.869209][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.869209][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.869209][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5599.869209][ T254] [ 5599.871465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.871465][ T254] netdev_get_by_index+0x5e/0x80 [ 5599.871465][ T254] fib6_nh_init+0x3d8/0x1580 [ 5599.871465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5599.871465][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5599.871465][ T254] ipv6_add_addr+0x411/0x2000 [ 5599.871465][ T254] inet6_addr_add+0x30e/0xa40 [ 5599.871465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5599.871465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5599.871465][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.871465][ T254] netlink_unicast+0x449/0x710 [ 5599.871465][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.871465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.871465][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.871465][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.871465][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.871465][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5599.871465][ T254] [ 5599.873703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.873703][ T254] netdev_get_by_index+0x5e/0x80 [ 5599.873703][ T254] fib6_nh_init+0x3d8/0x1580 [ 5599.873703][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5599.873703][ T254] ip6_route_add+0x1c/0x140 [ 5599.873703][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5599.873703][ T254] addrconf_add_dev+0xe2/0x170 [ 5599.873703][ T254] inet6_addr_add+0x12f/0xa40 [ 5599.873703][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5599.873703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5599.873703][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.873703][ T254] netlink_unicast+0x449/0x710 [ 5599.873703][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.873703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.873703][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.873703][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.873703][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.873703][ T254] [ 5599.875899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.875899][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5599.875899][ T254] ipv6_find_idev+0x102/0x170 [ 5599.875899][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5599.875899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5599.875899][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.875899][ T254] netlink_unicast+0x449/0x710 [ 5599.875899][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.875899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.875899][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.875899][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.875899][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.875899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5599.875899][ T254] [ 5599.877632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5599.877632][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5599.877632][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5599.877632][ T254] ipv6_find_idev+0x102/0x170 [ 5599.877632][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5599.877632][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5599.877632][ T254] netlink_rcv_skb+0x130/0x360 [ 5599.877632][ T254] netlink_unicast+0x449/0x710 [ 5599.877632][ T254] netlink_sendmsg+0x723/0xbe0 [ 5599.877632][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5599.877632][ T254] ___sys_sendmsg+0xee/0x170 [ 5599.877632][ T254] __sys_sendmsg+0xcd/0x170 [ 5599.877632][ T254] do_syscall_64+0xc6/0x1e0 [ 5599.877632][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5599.877632][ T254] [ 5610.119886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5610.120801][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.120801][ T254] dst_init+0x84/0x4a0 [ 5610.120801][ T254] dst_alloc+0x97/0x150 [ 5610.120801][ T254] ip6_dst_alloc+0x23/0x90 [ 5610.120801][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5610.120801][ T254] ip6_pol_route+0x56f/0x840 [ 5610.120801][ T254] fib6_rule_lookup+0x334/0x630 [ 5610.120801][ T254] ip6_route_output_flags+0x259/0x480 [ 5610.120801][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5610.120801][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5610.120801][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.120801][ T254] netlink_unicast+0x449/0x710 [ 5610.120801][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.120801][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.120801][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.120801][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.120801][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.120801][ T254] [ 5610.123034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.123034][ T254] netdev_get_by_index+0x5e/0x80 [ 5610.123034][ T254] fib6_nh_init+0x3d8/0x1580 [ 5610.123034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5610.123034][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5610.123034][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5610.123034][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5610.123034][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5610.123034][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5610.123034][ T254] addrconf_dad_begin+0x310/0x670 [ 5610.123034][ T254] addrconf_dad_work+0x10b/0xab0 [ 5610.123034][ T254] process_one_work+0x84d/0x18a0 [ 5610.123034][ T254] worker_thread+0x587/0xd30 [ 5610.123034][ T254] kthread+0x28a/0x350 [ 5610.123034][ T254] ret_from_fork+0x31/0x70 [ 5610.123034][ T254] ret_from_fork_asm+0x1a/0x30 [ 5610.123034][ T254] [ 5610.125204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.125204][ T254] netdev_get_by_index+0x5e/0x80 [ 5610.125204][ T254] fib6_nh_init+0x3d8/0x1580 [ 5610.125204][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5610.125204][ T254] ip6_route_add+0x1c/0x140 [ 5610.125204][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5610.125204][ T254] inet6_addr_add+0x4f8/0xa40 [ 5610.125204][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5610.125204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5610.125204][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.125204][ T254] netlink_unicast+0x449/0x710 [ 5610.125204][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.125204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.125204][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.125204][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.125204][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.125204][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5610.125204][ T254] [ 5610.127487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.127487][ T254] netdev_get_by_index+0x5e/0x80 [ 5610.127487][ T254] fib6_nh_init+0x3d8/0x1580 [ 5610.127487][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5610.127487][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5610.127487][ T254] ipv6_add_addr+0x411/0x2000 [ 5610.127487][ T254] inet6_addr_add+0x30e/0xa40 [ 5610.127487][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5610.127487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5610.127487][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.127487][ T254] netlink_unicast+0x449/0x710 [ 5610.127487][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.127487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.127487][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.127487][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.127487][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.127487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5610.127487][ T254] [ 5610.129764][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.129764][ T254] netdev_get_by_index+0x5e/0x80 [ 5610.129764][ T254] fib6_nh_init+0x3d8/0x1580 [ 5610.129764][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5610.129764][ T254] ip6_route_add+0x1c/0x140 [ 5610.129764][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5610.129764][ T254] addrconf_add_dev+0xe2/0x170 [ 5610.129764][ T254] inet6_addr_add+0x12f/0xa40 [ 5610.129764][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5610.129764][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5610.129764][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.129764][ T254] netlink_unicast+0x449/0x710 [ 5610.129764][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.129764][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.129764][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.129764][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.129764][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.129764][ T254] [ 5610.132003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.132003][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5610.132003][ T254] ipv6_find_idev+0x102/0x170 [ 5610.132003][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5610.132003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5610.132003][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.132003][ T254] netlink_unicast+0x449/0x710 [ 5610.132003][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.132003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.132003][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.132003][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.132003][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.132003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5610.132003][ T254] [ 5610.133722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5610.133722][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5610.133722][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5610.133722][ T254] ipv6_find_idev+0x102/0x170 [ 5610.133722][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5610.133722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5610.133722][ T254] netlink_rcv_skb+0x130/0x360 [ 5610.133722][ T254] netlink_unicast+0x449/0x710 [ 5610.133722][ T254] netlink_sendmsg+0x723/0xbe0 [ 5610.133722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5610.133722][ T254] ___sys_sendmsg+0xee/0x170 [ 5610.133722][ T254] __sys_sendmsg+0xcd/0x170 [ 5610.133722][ T254] do_syscall_64+0xc6/0x1e0 [ 5610.133722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5610.133722][ T254] [ 5620.375844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5620.376263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.376263][ T254] dst_init+0x84/0x4a0 [ 5620.376263][ T254] dst_alloc+0x97/0x150 [ 5620.376263][ T254] ip6_dst_alloc+0x23/0x90 [ 5620.376263][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5620.376263][ T254] ip6_pol_route+0x56f/0x840 [ 5620.376263][ T254] fib6_rule_lookup+0x334/0x630 [ 5620.376263][ T254] ip6_route_output_flags+0x259/0x480 [ 5620.376263][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5620.376263][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5620.376263][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.376263][ T254] netlink_unicast+0x449/0x710 [ 5620.376263][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.376263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.376263][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.376263][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.376263][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.376263][ T254] [ 5620.378460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.378460][ T254] netdev_get_by_index+0x5e/0x80 [ 5620.378460][ T254] fib6_nh_init+0x3d8/0x1580 [ 5620.378460][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5620.378460][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5620.378460][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5620.378460][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5620.378460][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5620.378460][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5620.378460][ T254] addrconf_dad_begin+0x310/0x670 [ 5620.378460][ T254] addrconf_dad_work+0x10b/0xab0 [ 5620.378460][ T254] process_one_work+0x84d/0x18a0 [ 5620.378460][ T254] worker_thread+0x587/0xd30 [ 5620.378460][ T254] kthread+0x28a/0x350 [ 5620.378460][ T254] ret_from_fork+0x31/0x70 [ 5620.378460][ T254] ret_from_fork_asm+0x1a/0x30 [ 5620.378460][ T254] [ 5620.380607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.380607][ T254] netdev_get_by_index+0x5e/0x80 [ 5620.380607][ T254] fib6_nh_init+0x3d8/0x1580 [ 5620.380607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5620.380607][ T254] ip6_route_add+0x1c/0x140 [ 5620.380607][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5620.380607][ T254] inet6_addr_add+0x4f8/0xa40 [ 5620.380607][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5620.380607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5620.380607][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.380607][ T254] netlink_unicast+0x449/0x710 [ 5620.380607][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.380607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.380607][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.380607][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.380607][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.380607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5620.380607][ T254] [ 5620.382864][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.382864][ T254] netdev_get_by_index+0x5e/0x80 [ 5620.382864][ T254] fib6_nh_init+0x3d8/0x1580 [ 5620.382864][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5620.382864][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5620.382864][ T254] ipv6_add_addr+0x411/0x2000 [ 5620.382864][ T254] inet6_addr_add+0x30e/0xa40 [ 5620.382864][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5620.382864][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5620.382864][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.382864][ T254] netlink_unicast+0x449/0x710 [ 5620.382864][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.382864][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.382864][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.382864][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.382864][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.382864][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5620.382864][ T254] [ 5620.385099][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.385099][ T254] netdev_get_by_index+0x5e/0x80 [ 5620.385099][ T254] fib6_nh_init+0x3d8/0x1580 [ 5620.385099][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5620.385099][ T254] ip6_route_add+0x1c/0x140 [ 5620.385099][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5620.385099][ T254] addrconf_add_dev+0xe2/0x170 [ 5620.385099][ T254] inet6_addr_add+0x12f/0xa40 [ 5620.385099][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5620.385099][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5620.385099][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.385099][ T254] netlink_unicast+0x449/0x710 [ 5620.385099][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.385099][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.385099][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.385099][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.385099][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.385099][ T254] [ 5620.387306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.387306][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5620.387306][ T254] ipv6_find_idev+0x102/0x170 [ 5620.387306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5620.387306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5620.387306][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.387306][ T254] netlink_unicast+0x449/0x710 [ 5620.387306][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.387306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.387306][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.387306][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.387306][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.387306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5620.387306][ T254] [ 5620.389022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5620.389022][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5620.389022][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5620.389022][ T254] ipv6_find_idev+0x102/0x170 [ 5620.389022][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5620.389022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5620.389022][ T254] netlink_rcv_skb+0x130/0x360 [ 5620.389022][ T254] netlink_unicast+0x449/0x710 [ 5620.389022][ T254] netlink_sendmsg+0x723/0xbe0 [ 5620.389022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5620.389022][ T254] ___sys_sendmsg+0xee/0x170 [ 5620.389022][ T254] __sys_sendmsg+0xcd/0x170 [ 5620.389022][ T254] do_syscall_64+0xc6/0x1e0 [ 5620.389022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5620.389022][ T254] [ 5630.631852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5630.632327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.632327][ T254] dst_init+0x84/0x4a0 [ 5630.632327][ T254] dst_alloc+0x97/0x150 [ 5630.632327][ T254] ip6_dst_alloc+0x23/0x90 [ 5630.632327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5630.632327][ T254] ip6_pol_route+0x56f/0x840 [ 5630.632327][ T254] fib6_rule_lookup+0x334/0x630 [ 5630.632327][ T254] ip6_route_output_flags+0x259/0x480 [ 5630.632327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5630.632327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5630.632327][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.632327][ T254] netlink_unicast+0x449/0x710 [ 5630.632327][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.632327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.632327][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.632327][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.632327][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.632327][ T254] [ 5630.634508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.634508][ T254] netdev_get_by_index+0x5e/0x80 [ 5630.634508][ T254] fib6_nh_init+0x3d8/0x1580 [ 5630.634508][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5630.634508][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5630.634508][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5630.634508][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5630.634508][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5630.634508][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5630.634508][ T254] addrconf_dad_begin+0x310/0x670 [ 5630.634508][ T254] addrconf_dad_work+0x10b/0xab0 [ 5630.634508][ T254] process_one_work+0x84d/0x18a0 [ 5630.634508][ T254] worker_thread+0x587/0xd30 [ 5630.634508][ T254] kthread+0x28a/0x350 [ 5630.634508][ T254] ret_from_fork+0x31/0x70 [ 5630.634508][ T254] ret_from_fork_asm+0x1a/0x30 [ 5630.634508][ T254] [ 5630.636651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.636651][ T254] netdev_get_by_index+0x5e/0x80 [ 5630.636651][ T254] fib6_nh_init+0x3d8/0x1580 [ 5630.636651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5630.636651][ T254] ip6_route_add+0x1c/0x140 [ 5630.636651][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5630.636651][ T254] inet6_addr_add+0x4f8/0xa40 [ 5630.636651][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5630.636651][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5630.636651][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.636651][ T254] netlink_unicast+0x449/0x710 [ 5630.636651][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.636651][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.636651][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.636651][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.636651][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.636651][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5630.636651][ T254] [ 5630.638906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.638906][ T254] netdev_get_by_index+0x5e/0x80 [ 5630.638906][ T254] fib6_nh_init+0x3d8/0x1580 [ 5630.638906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5630.638906][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5630.638906][ T254] ipv6_add_addr+0x411/0x2000 [ 5630.638906][ T254] inet6_addr_add+0x30e/0xa40 [ 5630.638906][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5630.638906][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5630.638906][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.638906][ T254] netlink_unicast+0x449/0x710 [ 5630.638906][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.638906][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.638906][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.638906][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.638906][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.638906][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5630.638906][ T254] [ 5630.641245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.641245][ T254] netdev_get_by_index+0x5e/0x80 [ 5630.641245][ T254] fib6_nh_init+0x3d8/0x1580 [ 5630.641245][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5630.641245][ T254] ip6_route_add+0x1c/0x140 [ 5630.641245][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5630.641245][ T254] addrconf_add_dev+0xe2/0x170 [ 5630.641245][ T254] inet6_addr_add+0x12f/0xa40 [ 5630.641245][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5630.641245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5630.641245][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.641245][ T254] netlink_unicast+0x449/0x710 [ 5630.641245][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.641245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.641245][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.641245][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.641245][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.641245][ T254] [ 5630.643455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.643455][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5630.643455][ T254] ipv6_find_idev+0x102/0x170 [ 5630.643455][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5630.643455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5630.643455][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.643455][ T254] netlink_unicast+0x449/0x710 [ 5630.643455][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.643455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.643455][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.643455][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.643455][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.643455][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5630.643455][ T254] [ 5630.645175][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5630.645175][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5630.645175][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5630.645175][ T254] ipv6_find_idev+0x102/0x170 [ 5630.645175][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5630.645175][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5630.645175][ T254] netlink_rcv_skb+0x130/0x360 [ 5630.645175][ T254] netlink_unicast+0x449/0x710 [ 5630.645175][ T254] netlink_sendmsg+0x723/0xbe0 [ 5630.645175][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5630.645175][ T254] ___sys_sendmsg+0xee/0x170 [ 5630.645175][ T254] __sys_sendmsg+0xcd/0x170 [ 5630.645175][ T254] do_syscall_64+0xc6/0x1e0 [ 5630.645175][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5630.645175][ T254] [ 5640.887857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5640.888320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.888320][ T254] dst_init+0x84/0x4a0 [ 5640.888320][ T254] dst_alloc+0x97/0x150 [ 5640.888320][ T254] ip6_dst_alloc+0x23/0x90 [ 5640.888320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5640.888320][ T254] ip6_pol_route+0x56f/0x840 [ 5640.888320][ T254] fib6_rule_lookup+0x334/0x630 [ 5640.888320][ T254] ip6_route_output_flags+0x259/0x480 [ 5640.888320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5640.888320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5640.888320][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.888320][ T254] netlink_unicast+0x449/0x710 [ 5640.888320][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.888320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.888320][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.888320][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.888320][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.888320][ T254] [ 5640.890531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.890531][ T254] netdev_get_by_index+0x5e/0x80 [ 5640.890531][ T254] fib6_nh_init+0x3d8/0x1580 [ 5640.890531][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5640.890531][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5640.890531][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5640.890531][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5640.890531][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5640.890531][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5640.890531][ T254] addrconf_dad_begin+0x310/0x670 [ 5640.890531][ T254] addrconf_dad_work+0x10b/0xab0 [ 5640.890531][ T254] process_one_work+0x84d/0x18a0 [ 5640.890531][ T254] worker_thread+0x587/0xd30 [ 5640.890531][ T254] kthread+0x28a/0x350 [ 5640.890531][ T254] ret_from_fork+0x31/0x70 [ 5640.890531][ T254] ret_from_fork_asm+0x1a/0x30 [ 5640.890531][ T254] [ 5640.893202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.893202][ T254] netdev_get_by_index+0x5e/0x80 [ 5640.893202][ T254] fib6_nh_init+0x3d8/0x1580 [ 5640.893202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5640.893202][ T254] ip6_route_add+0x1c/0x140 [ 5640.893202][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5640.893202][ T254] inet6_addr_add+0x4f8/0xa40 [ 5640.893202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5640.893202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5640.893202][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.893202][ T254] netlink_unicast+0x449/0x710 [ 5640.893202][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.893202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.893202][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.893202][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.893202][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.893202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5640.893202][ T254] [ 5640.895436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.895436][ T254] netdev_get_by_index+0x5e/0x80 [ 5640.895436][ T254] fib6_nh_init+0x3d8/0x1580 [ 5640.895436][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5640.895436][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5640.895436][ T254] ipv6_add_addr+0x411/0x2000 [ 5640.895436][ T254] inet6_addr_add+0x30e/0xa40 [ 5640.895436][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5640.895436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5640.895436][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.895436][ T254] netlink_unicast+0x449/0x710 [ 5640.895436][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.895436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.895436][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.895436][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.895436][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.895436][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5640.895436][ T254] [ 5640.897667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.897667][ T254] netdev_get_by_index+0x5e/0x80 [ 5640.897667][ T254] fib6_nh_init+0x3d8/0x1580 [ 5640.897667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5640.897667][ T254] ip6_route_add+0x1c/0x140 [ 5640.897667][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5640.897667][ T254] addrconf_add_dev+0xe2/0x170 [ 5640.897667][ T254] inet6_addr_add+0x12f/0xa40 [ 5640.897667][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5640.897667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5640.897667][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.897667][ T254] netlink_unicast+0x449/0x710 [ 5640.897667][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.897667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.897667][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.897667][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.897667][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.897667][ T254] [ 5640.899857][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.899857][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5640.899857][ T254] ipv6_find_idev+0x102/0x170 [ 5640.899857][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5640.899857][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5640.899857][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.899857][ T254] netlink_unicast+0x449/0x710 [ 5640.899857][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.899857][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.899857][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.899857][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.899857][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.899857][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5640.899857][ T254] [ 5640.901583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5640.901583][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5640.901583][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5640.901583][ T254] ipv6_find_idev+0x102/0x170 [ 5640.901583][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5640.901583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5640.901583][ T254] netlink_rcv_skb+0x130/0x360 [ 5640.901583][ T254] netlink_unicast+0x449/0x710 [ 5640.901583][ T254] netlink_sendmsg+0x723/0xbe0 [ 5640.901583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5640.901583][ T254] ___sys_sendmsg+0xee/0x170 [ 5640.901583][ T254] __sys_sendmsg+0xcd/0x170 [ 5640.901583][ T254] do_syscall_64+0xc6/0x1e0 [ 5640.901583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5640.901583][ T254] [ 5650.943872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5650.944360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.944360][ T254] dst_init+0x84/0x4a0 [ 5650.944360][ T254] dst_alloc+0x97/0x150 [ 5650.944360][ T254] ip6_dst_alloc+0x23/0x90 [ 5650.944360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5650.944360][ T254] ip6_pol_route+0x56f/0x840 [ 5650.944360][ T254] fib6_rule_lookup+0x334/0x630 [ 5650.944360][ T254] ip6_route_output_flags+0x259/0x480 [ 5650.944360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5650.944360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5650.944360][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.944360][ T254] netlink_unicast+0x449/0x710 [ 5650.944360][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.944360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.944360][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.944360][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.944360][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.944360][ T254] [ 5650.946579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.946579][ T254] netdev_get_by_index+0x5e/0x80 [ 5650.946579][ T254] fib6_nh_init+0x3d8/0x1580 [ 5650.946579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5650.946579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5650.946579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5650.946579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5650.946579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5650.946579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5650.946579][ T254] addrconf_dad_begin+0x310/0x670 [ 5650.946579][ T254] addrconf_dad_work+0x10b/0xab0 [ 5650.946579][ T254] process_one_work+0x84d/0x18a0 [ 5650.946579][ T254] worker_thread+0x587/0xd30 [ 5650.946579][ T254] kthread+0x28a/0x350 [ 5650.946579][ T254] ret_from_fork+0x31/0x70 [ 5650.946579][ T254] ret_from_fork_asm+0x1a/0x30 [ 5650.946579][ T254] [ 5650.948736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.948736][ T254] netdev_get_by_index+0x5e/0x80 [ 5650.948736][ T254] fib6_nh_init+0x3d8/0x1580 [ 5650.948736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5650.948736][ T254] ip6_route_add+0x1c/0x140 [ 5650.948736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5650.948736][ T254] inet6_addr_add+0x4f8/0xa40 [ 5650.948736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5650.948736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5650.948736][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.948736][ T254] netlink_unicast+0x449/0x710 [ 5650.948736][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.948736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.948736][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.948736][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.948736][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.948736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5650.948736][ T254] [ 5650.951038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.951038][ T254] netdev_get_by_index+0x5e/0x80 [ 5650.951038][ T254] fib6_nh_init+0x3d8/0x1580 [ 5650.951038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5650.951038][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5650.951038][ T254] ipv6_add_addr+0x411/0x2000 [ 5650.951038][ T254] inet6_addr_add+0x30e/0xa40 [ 5650.951038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5650.951038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5650.951038][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.951038][ T254] netlink_unicast+0x449/0x710 [ 5650.951038][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.951038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.951038][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.951038][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.951038][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.951038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5650.951038][ T254] [ 5650.953300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.953300][ T254] netdev_get_by_index+0x5e/0x80 [ 5650.953300][ T254] fib6_nh_init+0x3d8/0x1580 [ 5650.953300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5650.953300][ T254] ip6_route_add+0x1c/0x140 [ 5650.953300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5650.953300][ T254] addrconf_add_dev+0xe2/0x170 [ 5650.953300][ T254] inet6_addr_add+0x12f/0xa40 [ 5650.953300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5650.953300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5650.953300][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.953300][ T254] netlink_unicast+0x449/0x710 [ 5650.953300][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.953300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.953300][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.953300][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.953300][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.953300][ T254] [ 5650.955516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.955516][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5650.955516][ T254] ipv6_find_idev+0x102/0x170 [ 5650.955516][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5650.955516][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5650.955516][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.955516][ T254] netlink_unicast+0x449/0x710 [ 5650.955516][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.955516][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.955516][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.955516][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.955516][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.955516][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5650.955516][ T254] [ 5650.957255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5650.957255][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5650.957255][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5650.957255][ T254] ipv6_find_idev+0x102/0x170 [ 5650.957255][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5650.957255][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5650.957255][ T254] netlink_rcv_skb+0x130/0x360 [ 5650.957255][ T254] netlink_unicast+0x449/0x710 [ 5650.957255][ T254] netlink_sendmsg+0x723/0xbe0 [ 5650.957255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5650.957255][ T254] ___sys_sendmsg+0xee/0x170 [ 5650.957255][ T254] __sys_sendmsg+0xcd/0x170 [ 5650.957255][ T254] do_syscall_64+0xc6/0x1e0 [ 5650.957255][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5650.957255][ T254] [ 5661.199883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5661.200382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.200382][ T254] dst_init+0x84/0x4a0 [ 5661.200382][ T254] dst_alloc+0x97/0x150 [ 5661.200382][ T254] ip6_dst_alloc+0x23/0x90 [ 5661.200382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5661.200382][ T254] ip6_pol_route+0x56f/0x840 [ 5661.200382][ T254] fib6_rule_lookup+0x334/0x630 [ 5661.200382][ T254] ip6_route_output_flags+0x259/0x480 [ 5661.200382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5661.200382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5661.200382][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.200382][ T254] netlink_unicast+0x449/0x710 [ 5661.200382][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.200382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.200382][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.200382][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.200382][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.200382][ T254] [ 5661.202600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.202600][ T254] netdev_get_by_index+0x5e/0x80 [ 5661.202600][ T254] fib6_nh_init+0x3d8/0x1580 [ 5661.202600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5661.202600][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5661.202600][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5661.202600][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5661.202600][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5661.202600][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5661.202600][ T254] addrconf_dad_begin+0x310/0x670 [ 5661.202600][ T254] addrconf_dad_work+0x10b/0xab0 [ 5661.202600][ T254] process_one_work+0x84d/0x18a0 [ 5661.202600][ T254] worker_thread+0x587/0xd30 [ 5661.202600][ T254] kthread+0x28a/0x350 [ 5661.202600][ T254] ret_from_fork+0x31/0x70 [ 5661.202600][ T254] ret_from_fork_asm+0x1a/0x30 [ 5661.202600][ T254] [ 5661.204774][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.204774][ T254] netdev_get_by_index+0x5e/0x80 [ 5661.204774][ T254] fib6_nh_init+0x3d8/0x1580 [ 5661.204774][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5661.204774][ T254] ip6_route_add+0x1c/0x140 [ 5661.204774][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5661.204774][ T254] inet6_addr_add+0x4f8/0xa40 [ 5661.204774][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5661.204774][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5661.204774][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.204774][ T254] netlink_unicast+0x449/0x710 [ 5661.204774][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.204774][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.204774][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.204774][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.204774][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.204774][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5661.204774][ T254] [ 5661.207028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.207028][ T254] netdev_get_by_index+0x5e/0x80 [ 5661.207028][ T254] fib6_nh_init+0x3d8/0x1580 [ 5661.207028][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5661.207028][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5661.207028][ T254] ipv6_add_addr+0x411/0x2000 [ 5661.207028][ T254] inet6_addr_add+0x30e/0xa40 [ 5661.207028][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5661.207028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5661.207028][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.207028][ T254] netlink_unicast+0x449/0x710 [ 5661.207028][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.207028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.207028][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.207028][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.207028][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.207028][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5661.207028][ T254] [ 5661.209661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.209661][ T254] netdev_get_by_index+0x5e/0x80 [ 5661.209661][ T254] fib6_nh_init+0x3d8/0x1580 [ 5661.209661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5661.209661][ T254] ip6_route_add+0x1c/0x140 [ 5661.209661][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5661.209661][ T254] addrconf_add_dev+0xe2/0x170 [ 5661.209661][ T254] inet6_addr_add+0x12f/0xa40 [ 5661.209661][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5661.209661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5661.209661][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.209661][ T254] netlink_unicast+0x449/0x710 [ 5661.209661][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.209661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.209661][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.209661][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.209661][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.209661][ T254] [ 5661.211878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.211878][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5661.211878][ T254] ipv6_find_idev+0x102/0x170 [ 5661.211878][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5661.211878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5661.211878][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.211878][ T254] netlink_unicast+0x449/0x710 [ 5661.211878][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.211878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.211878][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.211878][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.211878][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.211878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5661.211878][ T254] [ 5661.213615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5661.213615][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5661.213615][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5661.213615][ T254] ipv6_find_idev+0x102/0x170 [ 5661.213615][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5661.213615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5661.213615][ T254] netlink_rcv_skb+0x130/0x360 [ 5661.213615][ T254] netlink_unicast+0x449/0x710 [ 5661.213615][ T254] netlink_sendmsg+0x723/0xbe0 [ 5661.213615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5661.213615][ T254] ___sys_sendmsg+0xee/0x170 [ 5661.213615][ T254] __sys_sendmsg+0xcd/0x170 [ 5661.213615][ T254] do_syscall_64+0xc6/0x1e0 [ 5661.213615][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5661.213615][ T254] [ 5671.287882][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5671.288375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.288375][ T254] dst_init+0x84/0x4a0 [ 5671.288375][ T254] dst_alloc+0x97/0x150 [ 5671.288375][ T254] ip6_dst_alloc+0x23/0x90 [ 5671.288375][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5671.288375][ T254] ip6_pol_route+0x56f/0x840 [ 5671.288375][ T254] fib6_rule_lookup+0x334/0x630 [ 5671.288375][ T254] ip6_route_output_flags+0x259/0x480 [ 5671.288375][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5671.288375][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5671.288375][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.288375][ T254] netlink_unicast+0x449/0x710 [ 5671.288375][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.288375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.288375][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.288375][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.288375][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.288375][ T254] [ 5671.290638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.290638][ T254] netdev_get_by_index+0x5e/0x80 [ 5671.290638][ T254] fib6_nh_init+0x3d8/0x1580 [ 5671.290638][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5671.290638][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5671.290638][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5671.290638][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5671.290638][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5671.290638][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5671.290638][ T254] addrconf_dad_begin+0x310/0x670 [ 5671.290638][ T254] addrconf_dad_work+0x10b/0xab0 [ 5671.290638][ T254] process_one_work+0x84d/0x18a0 [ 5671.290638][ T254] worker_thread+0x587/0xd30 [ 5671.290638][ T254] kthread+0x28a/0x350 [ 5671.290638][ T254] ret_from_fork+0x31/0x70 [ 5671.290638][ T254] ret_from_fork_asm+0x1a/0x30 [ 5671.290638][ T254] [ 5671.292809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.292809][ T254] netdev_get_by_index+0x5e/0x80 [ 5671.292809][ T254] fib6_nh_init+0x3d8/0x1580 [ 5671.292809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5671.292809][ T254] ip6_route_add+0x1c/0x140 [ 5671.292809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5671.292809][ T254] inet6_addr_add+0x4f8/0xa40 [ 5671.292809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5671.292809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5671.292809][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.292809][ T254] netlink_unicast+0x449/0x710 [ 5671.292809][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.292809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.292809][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.292809][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.292809][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.292809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5671.292809][ T254] [ 5671.295070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.295070][ T254] netdev_get_by_index+0x5e/0x80 [ 5671.295070][ T254] fib6_nh_init+0x3d8/0x1580 [ 5671.295070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5671.295070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5671.295070][ T254] ipv6_add_addr+0x411/0x2000 [ 5671.295070][ T254] inet6_addr_add+0x30e/0xa40 [ 5671.295070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5671.295070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5671.295070][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.295070][ T254] netlink_unicast+0x449/0x710 [ 5671.295070][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.295070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.295070][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.295070][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.295070][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.295070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5671.295070][ T254] [ 5671.297325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.297325][ T254] netdev_get_by_index+0x5e/0x80 [ 5671.297325][ T254] fib6_nh_init+0x3d8/0x1580 [ 5671.297325][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5671.297325][ T254] ip6_route_add+0x1c/0x140 [ 5671.297325][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5671.297325][ T254] addrconf_add_dev+0xe2/0x170 [ 5671.297325][ T254] inet6_addr_add+0x12f/0xa40 [ 5671.297325][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5671.297325][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5671.297325][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.297325][ T254] netlink_unicast+0x449/0x710 [ 5671.297325][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.297325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.297325][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.297325][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.297325][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.297325][ T254] [ 5671.299546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.299546][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5671.299546][ T254] ipv6_find_idev+0x102/0x170 [ 5671.299546][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5671.299546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5671.299546][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.299546][ T254] netlink_unicast+0x449/0x710 [ 5671.299546][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.299546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.299546][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.299546][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.299546][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.299546][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5671.299546][ T254] [ 5671.301292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5671.301292][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5671.301292][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5671.301292][ T254] ipv6_find_idev+0x102/0x170 [ 5671.301292][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5671.301292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5671.301292][ T254] netlink_rcv_skb+0x130/0x360 [ 5671.301292][ T254] netlink_unicast+0x449/0x710 [ 5671.301292][ T254] netlink_sendmsg+0x723/0xbe0 [ 5671.301292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5671.301292][ T254] ___sys_sendmsg+0xee/0x170 [ 5671.301292][ T254] __sys_sendmsg+0xcd/0x170 [ 5671.301292][ T254] do_syscall_64+0xc6/0x1e0 [ 5671.301292][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5671.301292][ T254] [ 5681.543889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5681.544312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.544312][ T254] dst_init+0x84/0x4a0 [ 5681.544312][ T254] dst_alloc+0x97/0x150 [ 5681.544312][ T254] ip6_dst_alloc+0x23/0x90 [ 5681.544312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5681.544312][ T254] ip6_pol_route+0x56f/0x840 [ 5681.544312][ T254] fib6_rule_lookup+0x334/0x630 [ 5681.544312][ T254] ip6_route_output_flags+0x259/0x480 [ 5681.544312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5681.544312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5681.544312][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.544312][ T254] netlink_unicast+0x449/0x710 [ 5681.544312][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.544312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.544312][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.544312][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.544312][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.544312][ T254] [ 5681.546502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.546502][ T254] netdev_get_by_index+0x5e/0x80 [ 5681.546502][ T254] fib6_nh_init+0x3d8/0x1580 [ 5681.546502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5681.546502][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5681.546502][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5681.546502][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5681.546502][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5681.546502][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5681.546502][ T254] addrconf_dad_begin+0x310/0x670 [ 5681.546502][ T254] addrconf_dad_work+0x10b/0xab0 [ 5681.546502][ T254] process_one_work+0x84d/0x18a0 [ 5681.546502][ T254] worker_thread+0x587/0xd30 [ 5681.546502][ T254] kthread+0x28a/0x350 [ 5681.546502][ T254] ret_from_fork+0x31/0x70 [ 5681.546502][ T254] ret_from_fork_asm+0x1a/0x30 [ 5681.546502][ T254] [ 5681.548643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.548643][ T254] netdev_get_by_index+0x5e/0x80 [ 5681.548643][ T254] fib6_nh_init+0x3d8/0x1580 [ 5681.548643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5681.548643][ T254] ip6_route_add+0x1c/0x140 [ 5681.548643][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5681.548643][ T254] inet6_addr_add+0x4f8/0xa40 [ 5681.548643][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5681.548643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5681.548643][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.548643][ T254] netlink_unicast+0x449/0x710 [ 5681.548643][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.548643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.548643][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.548643][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.548643][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.548643][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5681.548643][ T254] [ 5681.550891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.550891][ T254] netdev_get_by_index+0x5e/0x80 [ 5681.550891][ T254] fib6_nh_init+0x3d8/0x1580 [ 5681.550891][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5681.550891][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5681.550891][ T254] ipv6_add_addr+0x411/0x2000 [ 5681.550891][ T254] inet6_addr_add+0x30e/0xa40 [ 5681.550891][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5681.550891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5681.550891][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.550891][ T254] netlink_unicast+0x449/0x710 [ 5681.550891][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.550891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.550891][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.550891][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.550891][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.550891][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5681.550891][ T254] [ 5681.553185][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.553185][ T254] netdev_get_by_index+0x5e/0x80 [ 5681.553185][ T254] fib6_nh_init+0x3d8/0x1580 [ 5681.553185][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5681.553185][ T254] ip6_route_add+0x1c/0x140 [ 5681.553185][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5681.553185][ T254] addrconf_add_dev+0xe2/0x170 [ 5681.553185][ T254] inet6_addr_add+0x12f/0xa40 [ 5681.553185][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5681.553185][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5681.553185][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.553185][ T254] netlink_unicast+0x449/0x710 [ 5681.553185][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.553185][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.553185][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.553185][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.553185][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.553185][ T254] [ 5681.555385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.555385][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5681.555385][ T254] ipv6_find_idev+0x102/0x170 [ 5681.555385][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5681.555385][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5681.555385][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.555385][ T254] netlink_unicast+0x449/0x710 [ 5681.555385][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.555385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.555385][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.555385][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.555385][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.555385][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5681.555385][ T254] [ 5681.557107][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5681.557107][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5681.557107][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5681.557107][ T254] ipv6_find_idev+0x102/0x170 [ 5681.557107][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5681.557107][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5681.557107][ T254] netlink_rcv_skb+0x130/0x360 [ 5681.557107][ T254] netlink_unicast+0x449/0x710 [ 5681.557107][ T254] netlink_sendmsg+0x723/0xbe0 [ 5681.557107][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5681.557107][ T254] ___sys_sendmsg+0xee/0x170 [ 5681.557107][ T254] __sys_sendmsg+0xcd/0x170 [ 5681.557107][ T254] do_syscall_64+0xc6/0x1e0 [ 5681.557107][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5681.557107][ T254] [ 5691.567976][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5691.568455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.568455][ T254] dst_init+0x84/0x4a0 [ 5691.568455][ T254] dst_alloc+0x97/0x150 [ 5691.568455][ T254] ip6_dst_alloc+0x23/0x90 [ 5691.568455][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5691.568455][ T254] ip6_pol_route+0x56f/0x840 [ 5691.568455][ T254] fib6_rule_lookup+0x334/0x630 [ 5691.568455][ T254] ip6_route_output_flags+0x259/0x480 [ 5691.568455][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5691.568455][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5691.568455][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.568455][ T254] netlink_unicast+0x449/0x710 [ 5691.568455][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.568455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.568455][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.568455][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.568455][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.568455][ T254] [ 5691.570638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.570638][ T254] netdev_get_by_index+0x5e/0x80 [ 5691.570638][ T254] fib6_nh_init+0x3d8/0x1580 [ 5691.570638][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5691.570638][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5691.570638][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5691.570638][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5691.570638][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5691.570638][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5691.570638][ T254] addrconf_dad_begin+0x310/0x670 [ 5691.570638][ T254] addrconf_dad_work+0x10b/0xab0 [ 5691.570638][ T254] process_one_work+0x84d/0x18a0 [ 5691.570638][ T254] worker_thread+0x587/0xd30 [ 5691.570638][ T254] kthread+0x28a/0x350 [ 5691.570638][ T254] ret_from_fork+0x31/0x70 [ 5691.570638][ T254] ret_from_fork_asm+0x1a/0x30 [ 5691.570638][ T254] [ 5691.572828][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.572828][ T254] netdev_get_by_index+0x5e/0x80 [ 5691.572828][ T254] fib6_nh_init+0x3d8/0x1580 [ 5691.572828][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5691.572828][ T254] ip6_route_add+0x1c/0x140 [ 5691.572828][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5691.572828][ T254] inet6_addr_add+0x4f8/0xa40 [ 5691.572828][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5691.572828][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5691.572828][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.572828][ T254] netlink_unicast+0x449/0x710 [ 5691.572828][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.572828][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.572828][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.572828][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.572828][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.572828][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5691.572828][ T254] [ 5691.575063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.575063][ T254] netdev_get_by_index+0x5e/0x80 [ 5691.575063][ T254] fib6_nh_init+0x3d8/0x1580 [ 5691.575063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5691.575063][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5691.575063][ T254] ipv6_add_addr+0x411/0x2000 [ 5691.575063][ T254] inet6_addr_add+0x30e/0xa40 [ 5691.575063][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5691.575063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5691.575063][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.575063][ T254] netlink_unicast+0x449/0x710 [ 5691.575063][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.575063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.575063][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.575063][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.575063][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.575063][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5691.575063][ T254] [ 5691.577301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.577301][ T254] netdev_get_by_index+0x5e/0x80 [ 5691.577301][ T254] fib6_nh_init+0x3d8/0x1580 [ 5691.577301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5691.577301][ T254] ip6_route_add+0x1c/0x140 [ 5691.577301][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5691.577301][ T254] addrconf_add_dev+0xe2/0x170 [ 5691.577301][ T254] inet6_addr_add+0x12f/0xa40 [ 5691.577301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5691.577301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5691.577301][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.577301][ T254] netlink_unicast+0x449/0x710 [ 5691.577301][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.577301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.577301][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.577301][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.577301][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.577301][ T254] [ 5691.579491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.579491][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5691.579491][ T254] ipv6_find_idev+0x102/0x170 [ 5691.579491][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5691.579491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5691.579491][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.579491][ T254] netlink_unicast+0x449/0x710 [ 5691.579491][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.579491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.579491][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.579491][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.579491][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.579491][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5691.579491][ T254] [ 5691.581230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5691.581230][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5691.581230][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5691.581230][ T254] ipv6_find_idev+0x102/0x170 [ 5691.581230][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5691.581230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5691.581230][ T254] netlink_rcv_skb+0x130/0x360 [ 5691.581230][ T254] netlink_unicast+0x449/0x710 [ 5691.581230][ T254] netlink_sendmsg+0x723/0xbe0 [ 5691.581230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5691.581230][ T254] ___sys_sendmsg+0xee/0x170 [ 5691.581230][ T254] __sys_sendmsg+0xcd/0x170 [ 5691.581230][ T254] do_syscall_64+0xc6/0x1e0 [ 5691.581230][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5691.581230][ T254] [ 5701.743846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5701.744251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.744251][ T254] dst_init+0x84/0x4a0 [ 5701.744251][ T254] dst_alloc+0x97/0x150 [ 5701.744251][ T254] ip6_dst_alloc+0x23/0x90 [ 5701.744251][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5701.744251][ T254] ip6_pol_route+0x56f/0x840 [ 5701.744251][ T254] fib6_rule_lookup+0x334/0x630 [ 5701.744251][ T254] ip6_route_output_flags+0x259/0x480 [ 5701.744251][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5701.744251][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5701.744251][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.744251][ T254] netlink_unicast+0x449/0x710 [ 5701.744251][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.744251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.744251][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.744251][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.744251][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.744251][ T254] [ 5701.746430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.746430][ T254] netdev_get_by_index+0x5e/0x80 [ 5701.746430][ T254] fib6_nh_init+0x3d8/0x1580 [ 5701.746430][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5701.746430][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5701.746430][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5701.746430][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5701.746430][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5701.746430][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5701.746430][ T254] addrconf_dad_begin+0x310/0x670 [ 5701.746430][ T254] addrconf_dad_work+0x10b/0xab0 [ 5701.746430][ T254] process_one_work+0x84d/0x18a0 [ 5701.746430][ T254] worker_thread+0x587/0xd30 [ 5701.746430][ T254] kthread+0x28a/0x350 [ 5701.746430][ T254] ret_from_fork+0x31/0x70 [ 5701.746430][ T254] ret_from_fork_asm+0x1a/0x30 [ 5701.746430][ T254] [ 5701.748593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.748593][ T254] netdev_get_by_index+0x5e/0x80 [ 5701.748593][ T254] fib6_nh_init+0x3d8/0x1580 [ 5701.748593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5701.748593][ T254] ip6_route_add+0x1c/0x140 [ 5701.748593][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5701.748593][ T254] inet6_addr_add+0x4f8/0xa40 [ 5701.748593][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5701.748593][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5701.748593][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.748593][ T254] netlink_unicast+0x449/0x710 [ 5701.748593][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.748593][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.748593][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.748593][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.748593][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.748593][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5701.748593][ T254] [ 5701.750849][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.750849][ T254] netdev_get_by_index+0x5e/0x80 [ 5701.750849][ T254] fib6_nh_init+0x3d8/0x1580 [ 5701.750849][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5701.750849][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5701.750849][ T254] ipv6_add_addr+0x411/0x2000 [ 5701.750849][ T254] inet6_addr_add+0x30e/0xa40 [ 5701.750849][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5701.750849][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5701.750849][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.750849][ T254] netlink_unicast+0x449/0x710 [ 5701.750849][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.750849][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.750849][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.750849][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.750849][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.750849][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5701.750849][ T254] [ 5701.753084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.753084][ T254] netdev_get_by_index+0x5e/0x80 [ 5701.753084][ T254] fib6_nh_init+0x3d8/0x1580 [ 5701.753084][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5701.753084][ T254] ip6_route_add+0x1c/0x140 [ 5701.753084][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5701.753084][ T254] addrconf_add_dev+0xe2/0x170 [ 5701.753084][ T254] inet6_addr_add+0x12f/0xa40 [ 5701.753084][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5701.753084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5701.753084][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.753084][ T254] netlink_unicast+0x449/0x710 [ 5701.753084][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.753084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.753084][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.753084][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.753084][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.753084][ T254] [ 5701.755279][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.755279][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5701.755279][ T254] ipv6_find_idev+0x102/0x170 [ 5701.755279][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5701.755279][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5701.755279][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.755279][ T254] netlink_unicast+0x449/0x710 [ 5701.755279][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.755279][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.755279][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.755279][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.755279][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.755279][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5701.755279][ T254] [ 5701.756998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5701.756998][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5701.756998][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5701.756998][ T254] ipv6_find_idev+0x102/0x170 [ 5701.756998][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5701.756998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5701.756998][ T254] netlink_rcv_skb+0x130/0x360 [ 5701.756998][ T254] netlink_unicast+0x449/0x710 [ 5701.756998][ T254] netlink_sendmsg+0x723/0xbe0 [ 5701.756998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5701.756998][ T254] ___sys_sendmsg+0xee/0x170 [ 5701.756998][ T254] __sys_sendmsg+0xcd/0x170 [ 5701.756998][ T254] do_syscall_64+0xc6/0x1e0 [ 5701.756998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5701.756998][ T254] [ 5712.007864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5712.008278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.008278][ T254] dst_init+0x84/0x4a0 [ 5712.008278][ T254] dst_alloc+0x97/0x150 [ 5712.008278][ T254] ip6_dst_alloc+0x23/0x90 [ 5712.008278][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5712.008278][ T254] ip6_pol_route+0x56f/0x840 [ 5712.008278][ T254] fib6_rule_lookup+0x334/0x630 [ 5712.008278][ T254] ip6_route_output_flags+0x259/0x480 [ 5712.008278][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5712.008278][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5712.008278][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.008278][ T254] netlink_unicast+0x449/0x710 [ 5712.008278][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.008278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.008278][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.008278][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.008278][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.008278][ T254] [ 5712.010559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.010559][ T254] netdev_get_by_index+0x5e/0x80 [ 5712.010559][ T254] fib6_nh_init+0x3d8/0x1580 [ 5712.010559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5712.010559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5712.010559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5712.010559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5712.010559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5712.010559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5712.010559][ T254] addrconf_dad_begin+0x310/0x670 [ 5712.010559][ T254] addrconf_dad_work+0x10b/0xab0 [ 5712.010559][ T254] process_one_work+0x84d/0x18a0 [ 5712.010559][ T254] worker_thread+0x587/0xd30 [ 5712.010559][ T254] kthread+0x28a/0x350 [ 5712.010559][ T254] ret_from_fork+0x31/0x70 [ 5712.010559][ T254] ret_from_fork_asm+0x1a/0x30 [ 5712.010559][ T254] [ 5712.012713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.012713][ T254] netdev_get_by_index+0x5e/0x80 [ 5712.012713][ T254] fib6_nh_init+0x3d8/0x1580 [ 5712.012713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5712.012713][ T254] ip6_route_add+0x1c/0x140 [ 5712.012713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5712.012713][ T254] inet6_addr_add+0x4f8/0xa40 [ 5712.012713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5712.012713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5712.012713][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.012713][ T254] netlink_unicast+0x449/0x710 [ 5712.012713][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.012713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.012713][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.012713][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.012713][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.012713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5712.012713][ T254] [ 5712.014954][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.014954][ T254] netdev_get_by_index+0x5e/0x80 [ 5712.014954][ T254] fib6_nh_init+0x3d8/0x1580 [ 5712.014954][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5712.014954][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5712.014954][ T254] ipv6_add_addr+0x411/0x2000 [ 5712.014954][ T254] inet6_addr_add+0x30e/0xa40 [ 5712.014954][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5712.014954][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5712.014954][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.014954][ T254] netlink_unicast+0x449/0x710 [ 5712.014954][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.014954][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.014954][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.014954][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.014954][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.014954][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5712.014954][ T254] [ 5712.017192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.017192][ T254] netdev_get_by_index+0x5e/0x80 [ 5712.017192][ T254] fib6_nh_init+0x3d8/0x1580 [ 5712.017192][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5712.017192][ T254] ip6_route_add+0x1c/0x140 [ 5712.017192][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5712.017192][ T254] addrconf_add_dev+0xe2/0x170 [ 5712.017192][ T254] inet6_addr_add+0x12f/0xa40 [ 5712.017192][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5712.017192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5712.017192][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.017192][ T254] netlink_unicast+0x449/0x710 [ 5712.017192][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.017192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.017192][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.017192][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.017192][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.017192][ T254] [ 5712.019396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.019396][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5712.019396][ T254] ipv6_find_idev+0x102/0x170 [ 5712.019396][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5712.019396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5712.019396][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.019396][ T254] netlink_unicast+0x449/0x710 [ 5712.019396][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.019396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.019396][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.019396][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.019396][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.019396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5712.019396][ T254] [ 5712.021143][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5712.021143][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5712.021143][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5712.021143][ T254] ipv6_find_idev+0x102/0x170 [ 5712.021143][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5712.021143][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5712.021143][ T254] netlink_rcv_skb+0x130/0x360 [ 5712.021143][ T254] netlink_unicast+0x449/0x710 [ 5712.021143][ T254] netlink_sendmsg+0x723/0xbe0 [ 5712.021143][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5712.021143][ T254] ___sys_sendmsg+0xee/0x170 [ 5712.021143][ T254] __sys_sendmsg+0xcd/0x170 [ 5712.021143][ T254] do_syscall_64+0xc6/0x1e0 [ 5712.021143][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5712.021143][ T254] [ 5722.271917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5722.272429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.272429][ T254] dst_init+0x84/0x4a0 [ 5722.272429][ T254] dst_alloc+0x97/0x150 [ 5722.272429][ T254] ip6_dst_alloc+0x23/0x90 [ 5722.272429][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5722.272429][ T254] ip6_pol_route+0x56f/0x840 [ 5722.272429][ T254] fib6_rule_lookup+0x334/0x630 [ 5722.272429][ T254] ip6_route_output_flags+0x259/0x480 [ 5722.272429][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5722.272429][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5722.272429][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.272429][ T254] netlink_unicast+0x449/0x710 [ 5722.272429][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.272429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.272429][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.272429][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.272429][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.272429][ T254] [ 5722.274643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.274643][ T254] netdev_get_by_index+0x5e/0x80 [ 5722.274643][ T254] fib6_nh_init+0x3d8/0x1580 [ 5722.274643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5722.274643][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5722.274643][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5722.274643][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5722.274643][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5722.274643][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5722.274643][ T254] addrconf_dad_begin+0x310/0x670 [ 5722.274643][ T254] addrconf_dad_work+0x10b/0xab0 [ 5722.274643][ T254] process_one_work+0x84d/0x18a0 [ 5722.274643][ T254] worker_thread+0x587/0xd30 [ 5722.274643][ T254] kthread+0x28a/0x350 [ 5722.274643][ T254] ret_from_fork+0x31/0x70 [ 5722.274643][ T254] ret_from_fork_asm+0x1a/0x30 [ 5722.274643][ T254] [ 5722.276793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.276793][ T254] netdev_get_by_index+0x5e/0x80 [ 5722.276793][ T254] fib6_nh_init+0x3d8/0x1580 [ 5722.276793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5722.276793][ T254] ip6_route_add+0x1c/0x140 [ 5722.276793][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5722.276793][ T254] inet6_addr_add+0x4f8/0xa40 [ 5722.276793][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5722.276793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5722.276793][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.276793][ T254] netlink_unicast+0x449/0x710 [ 5722.276793][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.276793][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.276793][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.276793][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.276793][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.276793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5722.276793][ T254] [ 5722.279558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.279558][ T254] netdev_get_by_index+0x5e/0x80 [ 5722.279558][ T254] fib6_nh_init+0x3d8/0x1580 [ 5722.279558][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5722.279558][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5722.279558][ T254] ipv6_add_addr+0x411/0x2000 [ 5722.279558][ T254] inet6_addr_add+0x30e/0xa40 [ 5722.279558][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5722.279558][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5722.279558][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.279558][ T254] netlink_unicast+0x449/0x710 [ 5722.279558][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.279558][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.279558][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.279558][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.279558][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.279558][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5722.279558][ T254] [ 5722.281810][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.281810][ T254] netdev_get_by_index+0x5e/0x80 [ 5722.281810][ T254] fib6_nh_init+0x3d8/0x1580 [ 5722.281810][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5722.281810][ T254] ip6_route_add+0x1c/0x140 [ 5722.281810][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5722.281810][ T254] addrconf_add_dev+0xe2/0x170 [ 5722.281810][ T254] inet6_addr_add+0x12f/0xa40 [ 5722.281810][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5722.281810][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5722.281810][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.281810][ T254] netlink_unicast+0x449/0x710 [ 5722.281810][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.281810][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.281810][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.281810][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.281810][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.281810][ T254] [ 5722.284007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.284007][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5722.284007][ T254] ipv6_find_idev+0x102/0x170 [ 5722.284007][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5722.284007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5722.284007][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.284007][ T254] netlink_unicast+0x449/0x710 [ 5722.284007][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.284007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.284007][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.284007][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.284007][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.284007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5722.284007][ T254] [ 5722.285737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5722.285737][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5722.285737][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5722.285737][ T254] ipv6_find_idev+0x102/0x170 [ 5722.285737][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5722.285737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5722.285737][ T254] netlink_rcv_skb+0x130/0x360 [ 5722.285737][ T254] netlink_unicast+0x449/0x710 [ 5722.285737][ T254] netlink_sendmsg+0x723/0xbe0 [ 5722.285737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5722.285737][ T254] ___sys_sendmsg+0xee/0x170 [ 5722.285737][ T254] __sys_sendmsg+0xcd/0x170 [ 5722.285737][ T254] do_syscall_64+0xc6/0x1e0 [ 5722.285737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5722.285737][ T254] [ 5732.535813][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5732.536301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.536301][ T254] dst_init+0x84/0x4a0 [ 5732.536301][ T254] dst_alloc+0x97/0x150 [ 5732.536301][ T254] ip6_dst_alloc+0x23/0x90 [ 5732.536301][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5732.536301][ T254] ip6_pol_route+0x56f/0x840 [ 5732.536301][ T254] fib6_rule_lookup+0x334/0x630 [ 5732.536301][ T254] ip6_route_output_flags+0x259/0x480 [ 5732.536301][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5732.536301][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5732.536301][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.536301][ T254] netlink_unicast+0x449/0x710 [ 5732.536301][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.536301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.536301][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.536301][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.536301][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.536301][ T254] [ 5732.538496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.538496][ T254] netdev_get_by_index+0x5e/0x80 [ 5732.538496][ T254] fib6_nh_init+0x3d8/0x1580 [ 5732.538496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5732.538496][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5732.538496][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5732.538496][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5732.538496][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5732.538496][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5732.538496][ T254] addrconf_dad_begin+0x310/0x670 [ 5732.538496][ T254] addrconf_dad_work+0x10b/0xab0 [ 5732.538496][ T254] process_one_work+0x84d/0x18a0 [ 5732.538496][ T254] worker_thread+0x587/0xd30 [ 5732.538496][ T254] kthread+0x28a/0x350 [ 5732.538496][ T254] ret_from_fork+0x31/0x70 [ 5732.538496][ T254] ret_from_fork_asm+0x1a/0x30 [ 5732.538496][ T254] [ 5732.540649][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.540649][ T254] netdev_get_by_index+0x5e/0x80 [ 5732.540649][ T254] fib6_nh_init+0x3d8/0x1580 [ 5732.540649][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5732.540649][ T254] ip6_route_add+0x1c/0x140 [ 5732.540649][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5732.540649][ T254] inet6_addr_add+0x4f8/0xa40 [ 5732.540649][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5732.540649][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5732.540649][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.540649][ T254] netlink_unicast+0x449/0x710 [ 5732.540649][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.540649][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.540649][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.540649][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.540649][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.540649][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5732.540649][ T254] [ 5732.542883][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.542883][ T254] netdev_get_by_index+0x5e/0x80 [ 5732.542883][ T254] fib6_nh_init+0x3d8/0x1580 [ 5732.542883][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5732.542883][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5732.542883][ T254] ipv6_add_addr+0x411/0x2000 [ 5732.542883][ T254] inet6_addr_add+0x30e/0xa40 [ 5732.542883][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5732.542883][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5732.542883][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.542883][ T254] netlink_unicast+0x449/0x710 [ 5732.542883][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.542883][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.542883][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.542883][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.542883][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.542883][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5732.542883][ T254] [ 5732.545130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.545130][ T254] netdev_get_by_index+0x5e/0x80 [ 5732.545130][ T254] fib6_nh_init+0x3d8/0x1580 [ 5732.545130][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5732.545130][ T254] ip6_route_add+0x1c/0x140 [ 5732.545130][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5732.545130][ T254] addrconf_add_dev+0xe2/0x170 [ 5732.545130][ T254] inet6_addr_add+0x12f/0xa40 [ 5732.545130][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5732.545130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5732.545130][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.545130][ T254] netlink_unicast+0x449/0x710 [ 5732.545130][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.545130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.545130][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.545130][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.545130][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.545130][ T254] [ 5732.547337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.547337][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5732.547337][ T254] ipv6_find_idev+0x102/0x170 [ 5732.547337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5732.547337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5732.547337][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.547337][ T254] netlink_unicast+0x449/0x710 [ 5732.547337][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.547337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.547337][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.547337][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.547337][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.547337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5732.547337][ T254] [ 5732.549066][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5732.549066][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5732.549066][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5732.549066][ T254] ipv6_find_idev+0x102/0x170 [ 5732.549066][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5732.549066][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5732.549066][ T254] netlink_rcv_skb+0x130/0x360 [ 5732.549066][ T254] netlink_unicast+0x449/0x710 [ 5732.549066][ T254] netlink_sendmsg+0x723/0xbe0 [ 5732.549066][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5732.549066][ T254] ___sys_sendmsg+0xee/0x170 [ 5732.549066][ T254] __sys_sendmsg+0xcd/0x170 [ 5732.549066][ T254] do_syscall_64+0xc6/0x1e0 [ 5732.549066][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5732.549066][ T254] [ 5742.799831][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5742.800314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.800314][ T254] dst_init+0x84/0x4a0 [ 5742.800314][ T254] dst_alloc+0x97/0x150 [ 5742.800314][ T254] ip6_dst_alloc+0x23/0x90 [ 5742.800314][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5742.800314][ T254] ip6_pol_route+0x56f/0x840 [ 5742.800314][ T254] fib6_rule_lookup+0x334/0x630 [ 5742.800314][ T254] ip6_route_output_flags+0x259/0x480 [ 5742.800314][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5742.800314][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5742.800314][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.800314][ T254] netlink_unicast+0x449/0x710 [ 5742.800314][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.800314][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.800314][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.800314][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.800314][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.800314][ T254] [ 5742.802896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.802896][ T254] netdev_get_by_index+0x5e/0x80 [ 5742.802896][ T254] fib6_nh_init+0x3d8/0x1580 [ 5742.802896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5742.802896][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5742.802896][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5742.802896][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5742.802896][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5742.802896][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5742.802896][ T254] addrconf_dad_begin+0x310/0x670 [ 5742.802896][ T254] addrconf_dad_work+0x10b/0xab0 [ 5742.802896][ T254] process_one_work+0x84d/0x18a0 [ 5742.802896][ T254] worker_thread+0x587/0xd30 [ 5742.802896][ T254] kthread+0x28a/0x350 [ 5742.802896][ T254] ret_from_fork+0x31/0x70 [ 5742.802896][ T254] ret_from_fork_asm+0x1a/0x30 [ 5742.802896][ T254] [ 5742.805035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.805035][ T254] netdev_get_by_index+0x5e/0x80 [ 5742.805035][ T254] fib6_nh_init+0x3d8/0x1580 [ 5742.805035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5742.805035][ T254] ip6_route_add+0x1c/0x140 [ 5742.805035][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5742.805035][ T254] inet6_addr_add+0x4f8/0xa40 [ 5742.805035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5742.805035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5742.805035][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.805035][ T254] netlink_unicast+0x449/0x710 [ 5742.805035][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.805035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.805035][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.805035][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.805035][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.805035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5742.805035][ T254] [ 5742.807308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.807308][ T254] netdev_get_by_index+0x5e/0x80 [ 5742.807308][ T254] fib6_nh_init+0x3d8/0x1580 [ 5742.807308][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5742.807308][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5742.807308][ T254] ipv6_add_addr+0x411/0x2000 [ 5742.807308][ T254] inet6_addr_add+0x30e/0xa40 [ 5742.807308][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5742.807308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5742.807308][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.807308][ T254] netlink_unicast+0x449/0x710 [ 5742.807308][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.807308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.807308][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.807308][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.807308][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.807308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5742.807308][ T254] [ 5742.809534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.809534][ T254] netdev_get_by_index+0x5e/0x80 [ 5742.809534][ T254] fib6_nh_init+0x3d8/0x1580 [ 5742.809534][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5742.809534][ T254] ip6_route_add+0x1c/0x140 [ 5742.809534][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5742.809534][ T254] addrconf_add_dev+0xe2/0x170 [ 5742.809534][ T254] inet6_addr_add+0x12f/0xa40 [ 5742.809534][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5742.809534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5742.809534][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.809534][ T254] netlink_unicast+0x449/0x710 [ 5742.809534][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.809534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.809534][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.809534][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.809534][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.809534][ T254] [ 5742.811723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.811723][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5742.811723][ T254] ipv6_find_idev+0x102/0x170 [ 5742.811723][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5742.811723][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5742.811723][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.811723][ T254] netlink_unicast+0x449/0x710 [ 5742.811723][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.811723][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.811723][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.811723][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.811723][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.811723][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5742.811723][ T254] [ 5742.813436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5742.813436][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5742.813436][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5742.813436][ T254] ipv6_find_idev+0x102/0x170 [ 5742.813436][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5742.813436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5742.813436][ T254] netlink_rcv_skb+0x130/0x360 [ 5742.813436][ T254] netlink_unicast+0x449/0x710 [ 5742.813436][ T254] netlink_sendmsg+0x723/0xbe0 [ 5742.813436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5742.813436][ T254] ___sys_sendmsg+0xee/0x170 [ 5742.813436][ T254] __sys_sendmsg+0xcd/0x170 [ 5742.813436][ T254] do_syscall_64+0xc6/0x1e0 [ 5742.813436][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5742.813436][ T254] [ 5752.895874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5752.896355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.896355][ T254] dst_init+0x84/0x4a0 [ 5752.896355][ T254] dst_alloc+0x97/0x150 [ 5752.896355][ T254] ip6_dst_alloc+0x23/0x90 [ 5752.896355][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5752.896355][ T254] ip6_pol_route+0x56f/0x840 [ 5752.896355][ T254] fib6_rule_lookup+0x334/0x630 [ 5752.896355][ T254] ip6_route_output_flags+0x259/0x480 [ 5752.896355][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5752.896355][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5752.896355][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.896355][ T254] netlink_unicast+0x449/0x710 [ 5752.896355][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.896355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.896355][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.896355][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.896355][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.896355][ T254] [ 5752.898570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.898570][ T254] netdev_get_by_index+0x5e/0x80 [ 5752.898570][ T254] fib6_nh_init+0x3d8/0x1580 [ 5752.898570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5752.898570][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5752.898570][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5752.898570][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5752.898570][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5752.898570][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5752.898570][ T254] addrconf_dad_begin+0x310/0x670 [ 5752.898570][ T254] addrconf_dad_work+0x10b/0xab0 [ 5752.898570][ T254] process_one_work+0x84d/0x18a0 [ 5752.898570][ T254] worker_thread+0x587/0xd30 [ 5752.898570][ T254] kthread+0x28a/0x350 [ 5752.898570][ T254] ret_from_fork+0x31/0x70 [ 5752.898570][ T254] ret_from_fork_asm+0x1a/0x30 [ 5752.898570][ T254] [ 5752.900793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.900793][ T254] netdev_get_by_index+0x5e/0x80 [ 5752.900793][ T254] fib6_nh_init+0x3d8/0x1580 [ 5752.900793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5752.900793][ T254] ip6_route_add+0x1c/0x140 [ 5752.900793][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5752.900793][ T254] inet6_addr_add+0x4f8/0xa40 [ 5752.900793][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5752.900793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5752.900793][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.900793][ T254] netlink_unicast+0x449/0x710 [ 5752.900793][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.900793][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.900793][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.900793][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.900793][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.900793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5752.900793][ T254] [ 5752.903066][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.903066][ T254] netdev_get_by_index+0x5e/0x80 [ 5752.903066][ T254] fib6_nh_init+0x3d8/0x1580 [ 5752.903066][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5752.903066][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5752.903066][ T254] ipv6_add_addr+0x411/0x2000 [ 5752.903066][ T254] inet6_addr_add+0x30e/0xa40 [ 5752.903066][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5752.903066][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5752.903066][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.903066][ T254] netlink_unicast+0x449/0x710 [ 5752.903066][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.903066][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.903066][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.903066][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.903066][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.903066][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5752.903066][ T254] [ 5752.905322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.905322][ T254] netdev_get_by_index+0x5e/0x80 [ 5752.905322][ T254] fib6_nh_init+0x3d8/0x1580 [ 5752.905322][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5752.905322][ T254] ip6_route_add+0x1c/0x140 [ 5752.905322][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5752.905322][ T254] addrconf_add_dev+0xe2/0x170 [ 5752.905322][ T254] inet6_addr_add+0x12f/0xa40 [ 5752.905322][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5752.905322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5752.905322][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.905322][ T254] netlink_unicast+0x449/0x710 [ 5752.905322][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.905322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.905322][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.905322][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.905322][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.905322][ T254] [ 5752.907543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.907543][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5752.907543][ T254] ipv6_find_idev+0x102/0x170 [ 5752.907543][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5752.907543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5752.907543][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.907543][ T254] netlink_unicast+0x449/0x710 [ 5752.907543][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.907543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.907543][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.907543][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.907543][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.907543][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5752.907543][ T254] [ 5752.909283][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5752.909283][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5752.909283][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5752.909283][ T254] ipv6_find_idev+0x102/0x170 [ 5752.909283][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5752.909283][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5752.909283][ T254] netlink_rcv_skb+0x130/0x360 [ 5752.909283][ T254] netlink_unicast+0x449/0x710 [ 5752.909283][ T254] netlink_sendmsg+0x723/0xbe0 [ 5752.909283][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5752.909283][ T254] ___sys_sendmsg+0xee/0x170 [ 5752.909283][ T254] __sys_sendmsg+0xcd/0x170 [ 5752.909283][ T254] do_syscall_64+0xc6/0x1e0 [ 5752.909283][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5752.909283][ T254] [ 5762.935865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5762.936348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.936348][ T254] dst_init+0x84/0x4a0 [ 5762.936348][ T254] dst_alloc+0x97/0x150 [ 5762.936348][ T254] ip6_dst_alloc+0x23/0x90 [ 5762.936348][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5762.936348][ T254] ip6_pol_route+0x56f/0x840 [ 5762.936348][ T254] fib6_rule_lookup+0x334/0x630 [ 5762.936348][ T254] ip6_route_output_flags+0x259/0x480 [ 5762.936348][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5762.936348][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5762.936348][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.936348][ T254] netlink_unicast+0x449/0x710 [ 5762.936348][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.936348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.936348][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.936348][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.936348][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.936348][ T254] [ 5762.938558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.938558][ T254] netdev_get_by_index+0x5e/0x80 [ 5762.938558][ T254] fib6_nh_init+0x3d8/0x1580 [ 5762.938558][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5762.938558][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5762.938558][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5762.938558][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5762.938558][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5762.938558][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5762.938558][ T254] addrconf_dad_begin+0x310/0x670 [ 5762.938558][ T254] addrconf_dad_work+0x10b/0xab0 [ 5762.938558][ T254] process_one_work+0x84d/0x18a0 [ 5762.938558][ T254] worker_thread+0x587/0xd30 [ 5762.938558][ T254] kthread+0x28a/0x350 [ 5762.938558][ T254] ret_from_fork+0x31/0x70 [ 5762.938558][ T254] ret_from_fork_asm+0x1a/0x30 [ 5762.938558][ T254] [ 5762.940748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.940748][ T254] netdev_get_by_index+0x5e/0x80 [ 5762.940748][ T254] fib6_nh_init+0x3d8/0x1580 [ 5762.940748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5762.940748][ T254] ip6_route_add+0x1c/0x140 [ 5762.940748][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5762.940748][ T254] inet6_addr_add+0x4f8/0xa40 [ 5762.940748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5762.940748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5762.940748][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.940748][ T254] netlink_unicast+0x449/0x710 [ 5762.940748][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.940748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.940748][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.940748][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.940748][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.940748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5762.940748][ T254] [ 5762.943023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.943023][ T254] netdev_get_by_index+0x5e/0x80 [ 5762.943023][ T254] fib6_nh_init+0x3d8/0x1580 [ 5762.943023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5762.943023][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5762.943023][ T254] ipv6_add_addr+0x411/0x2000 [ 5762.943023][ T254] inet6_addr_add+0x30e/0xa40 [ 5762.943023][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5762.943023][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5762.943023][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.943023][ T254] netlink_unicast+0x449/0x710 [ 5762.943023][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.943023][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.943023][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.943023][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.943023][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.943023][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5762.943023][ T254] [ 5762.945280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.945280][ T254] netdev_get_by_index+0x5e/0x80 [ 5762.945280][ T254] fib6_nh_init+0x3d8/0x1580 [ 5762.945280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5762.945280][ T254] ip6_route_add+0x1c/0x140 [ 5762.945280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5762.945280][ T254] addrconf_add_dev+0xe2/0x170 [ 5762.945280][ T254] inet6_addr_add+0x12f/0xa40 [ 5762.945280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5762.945280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5762.945280][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.945280][ T254] netlink_unicast+0x449/0x710 [ 5762.945280][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.945280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.945280][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.945280][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.945280][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.945280][ T254] [ 5762.947491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.947491][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5762.947491][ T254] ipv6_find_idev+0x102/0x170 [ 5762.947491][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5762.947491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5762.947491][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.947491][ T254] netlink_unicast+0x449/0x710 [ 5762.947491][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.947491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.947491][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.947491][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.947491][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.947491][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5762.947491][ T254] [ 5762.949223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5762.949223][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5762.949223][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5762.949223][ T254] ipv6_find_idev+0x102/0x170 [ 5762.949223][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5762.949223][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5762.949223][ T254] netlink_rcv_skb+0x130/0x360 [ 5762.949223][ T254] netlink_unicast+0x449/0x710 [ 5762.949223][ T254] netlink_sendmsg+0x723/0xbe0 [ 5762.949223][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5762.949223][ T254] ___sys_sendmsg+0xee/0x170 [ 5762.949223][ T254] __sys_sendmsg+0xcd/0x170 [ 5762.949223][ T254] do_syscall_64+0xc6/0x1e0 [ 5762.949223][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5762.949223][ T254] [ 5772.983868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5772.984343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.984343][ T254] dst_init+0x84/0x4a0 [ 5772.984343][ T254] dst_alloc+0x97/0x150 [ 5772.984343][ T254] ip6_dst_alloc+0x23/0x90 [ 5772.984343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5772.984343][ T254] ip6_pol_route+0x56f/0x840 [ 5772.984343][ T254] fib6_rule_lookup+0x334/0x630 [ 5772.984343][ T254] ip6_route_output_flags+0x259/0x480 [ 5772.984343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5772.984343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5772.984343][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.984343][ T254] netlink_unicast+0x449/0x710 [ 5772.984343][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.984343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.984343][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.984343][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.984343][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.984343][ T254] [ 5772.986521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.986521][ T254] netdev_get_by_index+0x5e/0x80 [ 5772.986521][ T254] fib6_nh_init+0x3d8/0x1580 [ 5772.986521][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5772.986521][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5772.986521][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5772.986521][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5772.986521][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5772.986521][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5772.986521][ T254] addrconf_dad_begin+0x310/0x670 [ 5772.986521][ T254] addrconf_dad_work+0x10b/0xab0 [ 5772.986521][ T254] process_one_work+0x84d/0x18a0 [ 5772.986521][ T254] worker_thread+0x587/0xd30 [ 5772.986521][ T254] kthread+0x28a/0x350 [ 5772.986521][ T254] ret_from_fork+0x31/0x70 [ 5772.986521][ T254] ret_from_fork_asm+0x1a/0x30 [ 5772.986521][ T254] [ 5772.988760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.988760][ T254] netdev_get_by_index+0x5e/0x80 [ 5772.988760][ T254] fib6_nh_init+0x3d8/0x1580 [ 5772.988760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5772.988760][ T254] ip6_route_add+0x1c/0x140 [ 5772.988760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5772.988760][ T254] inet6_addr_add+0x4f8/0xa40 [ 5772.988760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5772.988760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5772.988760][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.988760][ T254] netlink_unicast+0x449/0x710 [ 5772.988760][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.988760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.988760][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.988760][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.988760][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.988760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5772.988760][ T254] [ 5772.991003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.991003][ T254] netdev_get_by_index+0x5e/0x80 [ 5772.991003][ T254] fib6_nh_init+0x3d8/0x1580 [ 5772.991003][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5772.991003][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5772.991003][ T254] ipv6_add_addr+0x411/0x2000 [ 5772.991003][ T254] inet6_addr_add+0x30e/0xa40 [ 5772.991003][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5772.991003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5772.991003][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.991003][ T254] netlink_unicast+0x449/0x710 [ 5772.991003][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.991003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.991003][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.991003][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.991003][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.991003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5772.991003][ T254] [ 5772.993242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.993242][ T254] netdev_get_by_index+0x5e/0x80 [ 5772.993242][ T254] fib6_nh_init+0x3d8/0x1580 [ 5772.993242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5772.993242][ T254] ip6_route_add+0x1c/0x140 [ 5772.993242][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5772.993242][ T254] addrconf_add_dev+0xe2/0x170 [ 5772.993242][ T254] inet6_addr_add+0x12f/0xa40 [ 5772.993242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5772.993242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5772.993242][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.993242][ T254] netlink_unicast+0x449/0x710 [ 5772.993242][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.993242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.993242][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.993242][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.993242][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.993242][ T254] [ 5772.995431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.995431][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5772.995431][ T254] ipv6_find_idev+0x102/0x170 [ 5772.995431][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5772.995431][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5772.995431][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.995431][ T254] netlink_unicast+0x449/0x710 [ 5772.995431][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.995431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.995431][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.995431][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.995431][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.995431][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5772.995431][ T254] [ 5772.997146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5772.997146][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5772.997146][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5772.997146][ T254] ipv6_find_idev+0x102/0x170 [ 5772.997146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5772.997146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5772.997146][ T254] netlink_rcv_skb+0x130/0x360 [ 5772.997146][ T254] netlink_unicast+0x449/0x710 [ 5772.997146][ T254] netlink_sendmsg+0x723/0xbe0 [ 5772.997146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5772.997146][ T254] ___sys_sendmsg+0xee/0x170 [ 5772.997146][ T254] __sys_sendmsg+0xcd/0x170 [ 5772.997146][ T254] do_syscall_64+0xc6/0x1e0 [ 5772.997146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5772.997146][ T254] [ 5783.247850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5783.248316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.248316][ T254] dst_init+0x84/0x4a0 [ 5783.248316][ T254] dst_alloc+0x97/0x150 [ 5783.248316][ T254] ip6_dst_alloc+0x23/0x90 [ 5783.248316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5783.248316][ T254] ip6_pol_route+0x56f/0x840 [ 5783.248316][ T254] fib6_rule_lookup+0x334/0x630 [ 5783.248316][ T254] ip6_route_output_flags+0x259/0x480 [ 5783.248316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5783.248316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5783.248316][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.248316][ T254] netlink_unicast+0x449/0x710 [ 5783.248316][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.248316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.248316][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.248316][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.248316][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.248316][ T254] [ 5783.250527][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.250527][ T254] netdev_get_by_index+0x5e/0x80 [ 5783.250527][ T254] fib6_nh_init+0x3d8/0x1580 [ 5783.250527][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5783.250527][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5783.250527][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5783.250527][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5783.250527][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5783.250527][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5783.250527][ T254] addrconf_dad_begin+0x310/0x670 [ 5783.250527][ T254] addrconf_dad_work+0x10b/0xab0 [ 5783.250527][ T254] process_one_work+0x84d/0x18a0 [ 5783.250527][ T254] worker_thread+0x587/0xd30 [ 5783.250527][ T254] kthread+0x28a/0x350 [ 5783.250527][ T254] ret_from_fork+0x31/0x70 [ 5783.250527][ T254] ret_from_fork_asm+0x1a/0x30 [ 5783.250527][ T254] [ 5783.252663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.252663][ T254] netdev_get_by_index+0x5e/0x80 [ 5783.252663][ T254] fib6_nh_init+0x3d8/0x1580 [ 5783.252663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5783.252663][ T254] ip6_route_add+0x1c/0x140 [ 5783.252663][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5783.252663][ T254] inet6_addr_add+0x4f8/0xa40 [ 5783.252663][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5783.252663][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5783.252663][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.252663][ T254] netlink_unicast+0x449/0x710 [ 5783.252663][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.252663][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.252663][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.252663][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.252663][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.252663][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5783.252663][ T254] [ 5783.254902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.254902][ T254] netdev_get_by_index+0x5e/0x80 [ 5783.254902][ T254] fib6_nh_init+0x3d8/0x1580 [ 5783.254902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5783.254902][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5783.254902][ T254] ipv6_add_addr+0x411/0x2000 [ 5783.254902][ T254] inet6_addr_add+0x30e/0xa40 [ 5783.254902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5783.254902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5783.254902][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.254902][ T254] netlink_unicast+0x449/0x710 [ 5783.254902][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.254902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.254902][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.254902][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.254902][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.254902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5783.254902][ T254] [ 5783.257135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.257135][ T254] netdev_get_by_index+0x5e/0x80 [ 5783.257135][ T254] fib6_nh_init+0x3d8/0x1580 [ 5783.257135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5783.257135][ T254] ip6_route_add+0x1c/0x140 [ 5783.257135][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5783.257135][ T254] addrconf_add_dev+0xe2/0x170 [ 5783.257135][ T254] inet6_addr_add+0x12f/0xa40 [ 5783.257135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5783.257135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5783.257135][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.257135][ T254] netlink_unicast+0x449/0x710 [ 5783.257135][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.257135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.257135][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.257135][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.257135][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.257135][ T254] [ 5783.259326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.259326][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5783.259326][ T254] ipv6_find_idev+0x102/0x170 [ 5783.259326][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5783.259326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5783.259326][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.259326][ T254] netlink_unicast+0x449/0x710 [ 5783.259326][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.259326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.259326][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.259326][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.259326][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.259326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5783.259326][ T254] [ 5783.261078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5783.261078][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5783.261078][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5783.261078][ T254] ipv6_find_idev+0x102/0x170 [ 5783.261078][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5783.261078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5783.261078][ T254] netlink_rcv_skb+0x130/0x360 [ 5783.261078][ T254] netlink_unicast+0x449/0x710 [ 5783.261078][ T254] netlink_sendmsg+0x723/0xbe0 [ 5783.261078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5783.261078][ T254] ___sys_sendmsg+0xee/0x170 [ 5783.261078][ T254] __sys_sendmsg+0xcd/0x170 [ 5783.261078][ T254] do_syscall_64+0xc6/0x1e0 [ 5783.261078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5783.261078][ T254] [ 5793.511872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5793.512331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.512331][ T254] dst_init+0x84/0x4a0 [ 5793.512331][ T254] dst_alloc+0x97/0x150 [ 5793.512331][ T254] ip6_dst_alloc+0x23/0x90 [ 5793.512331][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5793.512331][ T254] ip6_pol_route+0x56f/0x840 [ 5793.512331][ T254] fib6_rule_lookup+0x334/0x630 [ 5793.512331][ T254] ip6_route_output_flags+0x259/0x480 [ 5793.512331][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5793.512331][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5793.512331][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.512331][ T254] netlink_unicast+0x449/0x710 [ 5793.512331][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.512331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.512331][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.512331][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.512331][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.512331][ T254] [ 5793.514519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.514519][ T254] netdev_get_by_index+0x5e/0x80 [ 5793.514519][ T254] fib6_nh_init+0x3d8/0x1580 [ 5793.514519][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5793.514519][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5793.514519][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5793.514519][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5793.514519][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5793.514519][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5793.514519][ T254] addrconf_dad_begin+0x310/0x670 [ 5793.514519][ T254] addrconf_dad_work+0x10b/0xab0 [ 5793.514519][ T254] process_one_work+0x84d/0x18a0 [ 5793.514519][ T254] worker_thread+0x587/0xd30 [ 5793.514519][ T254] kthread+0x28a/0x350 [ 5793.514519][ T254] ret_from_fork+0x31/0x70 [ 5793.514519][ T254] ret_from_fork_asm+0x1a/0x30 [ 5793.514519][ T254] [ 5793.516660][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.516660][ T254] netdev_get_by_index+0x5e/0x80 [ 5793.516660][ T254] fib6_nh_init+0x3d8/0x1580 [ 5793.516660][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5793.516660][ T254] ip6_route_add+0x1c/0x140 [ 5793.516660][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5793.516660][ T254] inet6_addr_add+0x4f8/0xa40 [ 5793.516660][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5793.516660][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5793.516660][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.516660][ T254] netlink_unicast+0x449/0x710 [ 5793.516660][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.516660][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.516660][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.516660][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.516660][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.516660][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5793.516660][ T254] [ 5793.518914][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.518914][ T254] netdev_get_by_index+0x5e/0x80 [ 5793.518914][ T254] fib6_nh_init+0x3d8/0x1580 [ 5793.518914][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5793.518914][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5793.518914][ T254] ipv6_add_addr+0x411/0x2000 [ 5793.518914][ T254] inet6_addr_add+0x30e/0xa40 [ 5793.518914][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5793.518914][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5793.518914][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.518914][ T254] netlink_unicast+0x449/0x710 [ 5793.518914][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.518914][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.518914][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.518914][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.518914][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.518914][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5793.518914][ T254] [ 5793.521166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.521166][ T254] netdev_get_by_index+0x5e/0x80 [ 5793.521166][ T254] fib6_nh_init+0x3d8/0x1580 [ 5793.521166][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5793.521166][ T254] ip6_route_add+0x1c/0x140 [ 5793.521166][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5793.521166][ T254] addrconf_add_dev+0xe2/0x170 [ 5793.521166][ T254] inet6_addr_add+0x12f/0xa40 [ 5793.521166][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5793.521166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5793.521166][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.521166][ T254] netlink_unicast+0x449/0x710 [ 5793.521166][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.521166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.521166][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.521166][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.521166][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.521166][ T254] [ 5793.523359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.523359][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5793.523359][ T254] ipv6_find_idev+0x102/0x170 [ 5793.523359][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5793.523359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5793.523359][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.523359][ T254] netlink_unicast+0x449/0x710 [ 5793.523359][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.523359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.523359][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.523359][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.523359][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.523359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5793.523359][ T254] [ 5793.525082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5793.525082][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5793.525082][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5793.525082][ T254] ipv6_find_idev+0x102/0x170 [ 5793.525082][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5793.525082][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5793.525082][ T254] netlink_rcv_skb+0x130/0x360 [ 5793.525082][ T254] netlink_unicast+0x449/0x710 [ 5793.525082][ T254] netlink_sendmsg+0x723/0xbe0 [ 5793.525082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5793.525082][ T254] ___sys_sendmsg+0xee/0x170 [ 5793.525082][ T254] __sys_sendmsg+0xcd/0x170 [ 5793.525082][ T254] do_syscall_64+0xc6/0x1e0 [ 5793.525082][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5793.525082][ T254] [ 5803.775837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5803.776296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.776296][ T254] dst_init+0x84/0x4a0 [ 5803.776296][ T254] dst_alloc+0x97/0x150 [ 5803.776296][ T254] ip6_dst_alloc+0x23/0x90 [ 5803.776296][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5803.776296][ T254] ip6_pol_route+0x56f/0x840 [ 5803.776296][ T254] fib6_rule_lookup+0x334/0x630 [ 5803.776296][ T254] ip6_route_output_flags+0x259/0x480 [ 5803.776296][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5803.776296][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5803.776296][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.776296][ T254] netlink_unicast+0x449/0x710 [ 5803.776296][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.776296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.776296][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.776296][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.776296][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.776296][ T254] [ 5803.778485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.778485][ T254] netdev_get_by_index+0x5e/0x80 [ 5803.778485][ T254] fib6_nh_init+0x3d8/0x1580 [ 5803.778485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5803.778485][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5803.778485][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5803.778485][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5803.778485][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5803.778485][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5803.778485][ T254] addrconf_dad_begin+0x310/0x670 [ 5803.778485][ T254] addrconf_dad_work+0x10b/0xab0 [ 5803.778485][ T254] process_one_work+0x84d/0x18a0 [ 5803.778485][ T254] worker_thread+0x587/0xd30 [ 5803.778485][ T254] kthread+0x28a/0x350 [ 5803.778485][ T254] ret_from_fork+0x31/0x70 [ 5803.778485][ T254] ret_from_fork_asm+0x1a/0x30 [ 5803.778485][ T254] [ 5803.780637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.780637][ T254] netdev_get_by_index+0x5e/0x80 [ 5803.780637][ T254] fib6_nh_init+0x3d8/0x1580 [ 5803.780637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5803.780637][ T254] ip6_route_add+0x1c/0x140 [ 5803.780637][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5803.780637][ T254] inet6_addr_add+0x4f8/0xa40 [ 5803.780637][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5803.780637][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5803.780637][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.780637][ T254] netlink_unicast+0x449/0x710 [ 5803.780637][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.780637][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.780637][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.780637][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.780637][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.780637][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5803.780637][ T254] [ 5803.782874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.782874][ T254] netdev_get_by_index+0x5e/0x80 [ 5803.782874][ T254] fib6_nh_init+0x3d8/0x1580 [ 5803.782874][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5803.782874][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5803.782874][ T254] ipv6_add_addr+0x411/0x2000 [ 5803.782874][ T254] inet6_addr_add+0x30e/0xa40 [ 5803.782874][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5803.782874][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5803.782874][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.782874][ T254] netlink_unicast+0x449/0x710 [ 5803.782874][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.782874][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.782874][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.782874][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.782874][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.782874][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5803.782874][ T254] [ 5803.785110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.785110][ T254] netdev_get_by_index+0x5e/0x80 [ 5803.785110][ T254] fib6_nh_init+0x3d8/0x1580 [ 5803.785110][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5803.785110][ T254] ip6_route_add+0x1c/0x140 [ 5803.785110][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5803.785110][ T254] addrconf_add_dev+0xe2/0x170 [ 5803.785110][ T254] inet6_addr_add+0x12f/0xa40 [ 5803.785110][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5803.785110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5803.785110][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.785110][ T254] netlink_unicast+0x449/0x710 [ 5803.785110][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.785110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.785110][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.785110][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.785110][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.785110][ T254] [ 5803.787304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.787304][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5803.787304][ T254] ipv6_find_idev+0x102/0x170 [ 5803.787304][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5803.787304][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5803.787304][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.787304][ T254] netlink_unicast+0x449/0x710 [ 5803.787304][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.787304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.787304][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.787304][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.787304][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.787304][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5803.787304][ T254] [ 5803.789025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5803.789025][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5803.789025][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5803.789025][ T254] ipv6_find_idev+0x102/0x170 [ 5803.789025][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5803.789025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5803.789025][ T254] netlink_rcv_skb+0x130/0x360 [ 5803.789025][ T254] netlink_unicast+0x449/0x710 [ 5803.789025][ T254] netlink_sendmsg+0x723/0xbe0 [ 5803.789025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5803.789025][ T254] ___sys_sendmsg+0xee/0x170 [ 5803.789025][ T254] __sys_sendmsg+0xcd/0x170 [ 5803.789025][ T254] do_syscall_64+0xc6/0x1e0 [ 5803.789025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5803.789025][ T254] [ 5813.823844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5813.824321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.824321][ T254] dst_init+0x84/0x4a0 [ 5813.824321][ T254] dst_alloc+0x97/0x150 [ 5813.824321][ T254] ip6_dst_alloc+0x23/0x90 [ 5813.824321][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5813.824321][ T254] ip6_pol_route+0x56f/0x840 [ 5813.824321][ T254] fib6_rule_lookup+0x334/0x630 [ 5813.824321][ T254] ip6_route_output_flags+0x259/0x480 [ 5813.824321][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5813.824321][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5813.824321][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.824321][ T254] netlink_unicast+0x449/0x710 [ 5813.824321][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.824321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.824321][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.824321][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.824321][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.824321][ T254] [ 5813.826513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.826513][ T254] netdev_get_by_index+0x5e/0x80 [ 5813.826513][ T254] fib6_nh_init+0x3d8/0x1580 [ 5813.826513][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5813.826513][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5813.826513][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5813.826513][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5813.826513][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5813.826513][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5813.826513][ T254] addrconf_dad_begin+0x310/0x670 [ 5813.826513][ T254] addrconf_dad_work+0x10b/0xab0 [ 5813.826513][ T254] process_one_work+0x84d/0x18a0 [ 5813.826513][ T254] worker_thread+0x587/0xd30 [ 5813.826513][ T254] kthread+0x28a/0x350 [ 5813.826513][ T254] ret_from_fork+0x31/0x70 [ 5813.826513][ T254] ret_from_fork_asm+0x1a/0x30 [ 5813.826513][ T254] [ 5813.828654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.828654][ T254] netdev_get_by_index+0x5e/0x80 [ 5813.828654][ T254] fib6_nh_init+0x3d8/0x1580 [ 5813.828654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5813.828654][ T254] ip6_route_add+0x1c/0x140 [ 5813.828654][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5813.828654][ T254] inet6_addr_add+0x4f8/0xa40 [ 5813.828654][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5813.828654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5813.828654][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.828654][ T254] netlink_unicast+0x449/0x710 [ 5813.828654][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.828654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.828654][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.828654][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.828654][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.828654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5813.828654][ T254] [ 5813.830911][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.830911][ T254] netdev_get_by_index+0x5e/0x80 [ 5813.830911][ T254] fib6_nh_init+0x3d8/0x1580 [ 5813.830911][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5813.830911][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5813.830911][ T254] ipv6_add_addr+0x411/0x2000 [ 5813.830911][ T254] inet6_addr_add+0x30e/0xa40 [ 5813.830911][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5813.830911][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5813.830911][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.830911][ T254] netlink_unicast+0x449/0x710 [ 5813.830911][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.830911][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.830911][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.830911][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.830911][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.830911][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5813.830911][ T254] [ 5813.833144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.833144][ T254] netdev_get_by_index+0x5e/0x80 [ 5813.833144][ T254] fib6_nh_init+0x3d8/0x1580 [ 5813.833144][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5813.833144][ T254] ip6_route_add+0x1c/0x140 [ 5813.833144][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5813.833144][ T254] addrconf_add_dev+0xe2/0x170 [ 5813.833144][ T254] inet6_addr_add+0x12f/0xa40 [ 5813.833144][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5813.833144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5813.833144][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.833144][ T254] netlink_unicast+0x449/0x710 [ 5813.833144][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.833144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.833144][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.833144][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.833144][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.833144][ T254] [ 5813.835341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.835341][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5813.835341][ T254] ipv6_find_idev+0x102/0x170 [ 5813.835341][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5813.835341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5813.835341][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.835341][ T254] netlink_unicast+0x449/0x710 [ 5813.835341][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.835341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.835341][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.835341][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.835341][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.835341][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5813.835341][ T254] [ 5813.837060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5813.837060][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5813.837060][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5813.837060][ T254] ipv6_find_idev+0x102/0x170 [ 5813.837060][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5813.837060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5813.837060][ T254] netlink_rcv_skb+0x130/0x360 [ 5813.837060][ T254] netlink_unicast+0x449/0x710 [ 5813.837060][ T254] netlink_sendmsg+0x723/0xbe0 [ 5813.837060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5813.837060][ T254] ___sys_sendmsg+0xee/0x170 [ 5813.837060][ T254] __sys_sendmsg+0xcd/0x170 [ 5813.837060][ T254] do_syscall_64+0xc6/0x1e0 [ 5813.837060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5813.837060][ T254] [ 5823.903835][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5823.904299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.904299][ T254] dst_init+0x84/0x4a0 [ 5823.904299][ T254] dst_alloc+0x97/0x150 [ 5823.904299][ T254] ip6_dst_alloc+0x23/0x90 [ 5823.904299][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5823.904299][ T254] ip6_pol_route+0x56f/0x840 [ 5823.904299][ T254] fib6_rule_lookup+0x334/0x630 [ 5823.904299][ T254] ip6_route_output_flags+0x259/0x480 [ 5823.904299][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5823.904299][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5823.904299][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.904299][ T254] netlink_unicast+0x449/0x710 [ 5823.904299][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.904299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.904299][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.904299][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.904299][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.904299][ T254] [ 5823.906485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.906485][ T254] netdev_get_by_index+0x5e/0x80 [ 5823.906485][ T254] fib6_nh_init+0x3d8/0x1580 [ 5823.906485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5823.906485][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5823.906485][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5823.906485][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5823.906485][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5823.906485][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5823.906485][ T254] addrconf_dad_begin+0x310/0x670 [ 5823.906485][ T254] addrconf_dad_work+0x10b/0xab0 [ 5823.906485][ T254] process_one_work+0x84d/0x18a0 [ 5823.906485][ T254] worker_thread+0x587/0xd30 [ 5823.906485][ T254] kthread+0x28a/0x350 [ 5823.906485][ T254] ret_from_fork+0x31/0x70 [ 5823.906485][ T254] ret_from_fork_asm+0x1a/0x30 [ 5823.906485][ T254] [ 5823.908628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.908628][ T254] netdev_get_by_index+0x5e/0x80 [ 5823.908628][ T254] fib6_nh_init+0x3d8/0x1580 [ 5823.908628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5823.908628][ T254] ip6_route_add+0x1c/0x140 [ 5823.908628][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5823.908628][ T254] inet6_addr_add+0x4f8/0xa40 [ 5823.908628][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5823.908628][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5823.908628][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.908628][ T254] netlink_unicast+0x449/0x710 [ 5823.908628][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.908628][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.908628][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.908628][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.908628][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.908628][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5823.908628][ T254] [ 5823.910887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.910887][ T254] netdev_get_by_index+0x5e/0x80 [ 5823.910887][ T254] fib6_nh_init+0x3d8/0x1580 [ 5823.910887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5823.910887][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5823.910887][ T254] ipv6_add_addr+0x411/0x2000 [ 5823.910887][ T254] inet6_addr_add+0x30e/0xa40 [ 5823.910887][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5823.910887][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5823.910887][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.910887][ T254] netlink_unicast+0x449/0x710 [ 5823.910887][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.910887][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.910887][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.910887][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.910887][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.910887][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5823.910887][ T254] [ 5823.913129][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.913129][ T254] netdev_get_by_index+0x5e/0x80 [ 5823.913129][ T254] fib6_nh_init+0x3d8/0x1580 [ 5823.913129][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5823.913129][ T254] ip6_route_add+0x1c/0x140 [ 5823.913129][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5823.913129][ T254] addrconf_add_dev+0xe2/0x170 [ 5823.913129][ T254] inet6_addr_add+0x12f/0xa40 [ 5823.913129][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5823.913129][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5823.913129][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.913129][ T254] netlink_unicast+0x449/0x710 [ 5823.913129][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.913129][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.913129][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.913129][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.913129][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.913129][ T254] [ 5823.915321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.915321][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5823.915321][ T254] ipv6_find_idev+0x102/0x170 [ 5823.915321][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5823.915321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5823.915321][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.915321][ T254] netlink_unicast+0x449/0x710 [ 5823.915321][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.915321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.915321][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.915321][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.915321][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.915321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5823.915321][ T254] [ 5823.917043][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5823.917043][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5823.917043][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5823.917043][ T254] ipv6_find_idev+0x102/0x170 [ 5823.917043][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5823.917043][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5823.917043][ T254] netlink_rcv_skb+0x130/0x360 [ 5823.917043][ T254] netlink_unicast+0x449/0x710 [ 5823.917043][ T254] netlink_sendmsg+0x723/0xbe0 [ 5823.917043][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5823.917043][ T254] ___sys_sendmsg+0xee/0x170 [ 5823.917043][ T254] __sys_sendmsg+0xcd/0x170 [ 5823.917043][ T254] do_syscall_64+0xc6/0x1e0 [ 5823.917043][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5823.917043][ T254] [ 5834.159840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5834.160315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.160315][ T254] dst_init+0x84/0x4a0 [ 5834.160315][ T254] dst_alloc+0x97/0x150 [ 5834.160315][ T254] ip6_dst_alloc+0x23/0x90 [ 5834.160315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5834.160315][ T254] ip6_pol_route+0x56f/0x840 [ 5834.160315][ T254] fib6_rule_lookup+0x334/0x630 [ 5834.160315][ T254] ip6_route_output_flags+0x259/0x480 [ 5834.160315][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5834.160315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5834.160315][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.160315][ T254] netlink_unicast+0x449/0x710 [ 5834.160315][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.160315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.160315][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.160315][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.160315][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.160315][ T254] [ 5834.162501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.162501][ T254] netdev_get_by_index+0x5e/0x80 [ 5834.162501][ T254] fib6_nh_init+0x3d8/0x1580 [ 5834.162501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5834.162501][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5834.162501][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5834.162501][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5834.162501][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5834.162501][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5834.162501][ T254] addrconf_dad_begin+0x310/0x670 [ 5834.162501][ T254] addrconf_dad_work+0x10b/0xab0 [ 5834.162501][ T254] process_one_work+0x84d/0x18a0 [ 5834.162501][ T254] worker_thread+0x587/0xd30 [ 5834.162501][ T254] kthread+0x28a/0x350 [ 5834.162501][ T254] ret_from_fork+0x31/0x70 [ 5834.162501][ T254] ret_from_fork_asm+0x1a/0x30 [ 5834.162501][ T254] [ 5834.164639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.164639][ T254] netdev_get_by_index+0x5e/0x80 [ 5834.164639][ T254] fib6_nh_init+0x3d8/0x1580 [ 5834.164639][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5834.164639][ T254] ip6_route_add+0x1c/0x140 [ 5834.164639][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5834.164639][ T254] inet6_addr_add+0x4f8/0xa40 [ 5834.164639][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5834.164639][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5834.164639][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.164639][ T254] netlink_unicast+0x449/0x710 [ 5834.164639][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.164639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.164639][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.164639][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.164639][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.164639][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5834.164639][ T254] [ 5834.166870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.166870][ T254] netdev_get_by_index+0x5e/0x80 [ 5834.166870][ T254] fib6_nh_init+0x3d8/0x1580 [ 5834.166870][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5834.166870][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5834.166870][ T254] ipv6_add_addr+0x411/0x2000 [ 5834.166870][ T254] inet6_addr_add+0x30e/0xa40 [ 5834.166870][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5834.166870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5834.166870][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.166870][ T254] netlink_unicast+0x449/0x710 [ 5834.166870][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.166870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.166870][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.166870][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.166870][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.166870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5834.166870][ T254] [ 5834.169103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.169103][ T254] netdev_get_by_index+0x5e/0x80 [ 5834.169103][ T254] fib6_nh_init+0x3d8/0x1580 [ 5834.169103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5834.169103][ T254] ip6_route_add+0x1c/0x140 [ 5834.169103][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5834.169103][ T254] addrconf_add_dev+0xe2/0x170 [ 5834.169103][ T254] inet6_addr_add+0x12f/0xa40 [ 5834.169103][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5834.169103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5834.169103][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.169103][ T254] netlink_unicast+0x449/0x710 [ 5834.169103][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.169103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.169103][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.169103][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.169103][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.169103][ T254] [ 5834.171299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.171299][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5834.171299][ T254] ipv6_find_idev+0x102/0x170 [ 5834.171299][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5834.171299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5834.171299][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.171299][ T254] netlink_unicast+0x449/0x710 [ 5834.171299][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.171299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.171299][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.171299][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.171299][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.171299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5834.171299][ T254] [ 5834.173016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5834.173016][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5834.173016][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5834.173016][ T254] ipv6_find_idev+0x102/0x170 [ 5834.173016][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5834.173016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5834.173016][ T254] netlink_rcv_skb+0x130/0x360 [ 5834.173016][ T254] netlink_unicast+0x449/0x710 [ 5834.173016][ T254] netlink_sendmsg+0x723/0xbe0 [ 5834.173016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5834.173016][ T254] ___sys_sendmsg+0xee/0x170 [ 5834.173016][ T254] __sys_sendmsg+0xcd/0x170 [ 5834.173016][ T254] do_syscall_64+0xc6/0x1e0 [ 5834.173016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5834.173016][ T254] [ 5844.415938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5844.416408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.416408][ T254] dst_init+0x84/0x4a0 [ 5844.416408][ T254] dst_alloc+0x97/0x150 [ 5844.416408][ T254] ip6_dst_alloc+0x23/0x90 [ 5844.416408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5844.416408][ T254] ip6_pol_route+0x56f/0x840 [ 5844.416408][ T254] fib6_rule_lookup+0x334/0x630 [ 5844.416408][ T254] ip6_route_output_flags+0x259/0x480 [ 5844.416408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5844.416408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5844.416408][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.416408][ T254] netlink_unicast+0x449/0x710 [ 5844.416408][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.416408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.416408][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.416408][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.416408][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.416408][ T254] [ 5844.418591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.418591][ T254] netdev_get_by_index+0x5e/0x80 [ 5844.418591][ T254] fib6_nh_init+0x3d8/0x1580 [ 5844.418591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5844.418591][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5844.418591][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5844.418591][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5844.418591][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5844.418591][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5844.418591][ T254] addrconf_dad_begin+0x310/0x670 [ 5844.418591][ T254] addrconf_dad_work+0x10b/0xab0 [ 5844.418591][ T254] process_one_work+0x84d/0x18a0 [ 5844.418591][ T254] worker_thread+0x587/0xd30 [ 5844.418591][ T254] kthread+0x28a/0x350 [ 5844.418591][ T254] ret_from_fork+0x31/0x70 [ 5844.418591][ T254] ret_from_fork_asm+0x1a/0x30 [ 5844.418591][ T254] [ 5844.420770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.420770][ T254] netdev_get_by_index+0x5e/0x80 [ 5844.420770][ T254] fib6_nh_init+0x3d8/0x1580 [ 5844.420770][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5844.420770][ T254] ip6_route_add+0x1c/0x140 [ 5844.420770][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5844.420770][ T254] inet6_addr_add+0x4f8/0xa40 [ 5844.420770][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5844.420770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5844.420770][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.420770][ T254] netlink_unicast+0x449/0x710 [ 5844.420770][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.420770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.420770][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.420770][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.420770][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.420770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5844.420770][ T254] [ 5844.423005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.423005][ T254] netdev_get_by_index+0x5e/0x80 [ 5844.423005][ T254] fib6_nh_init+0x3d8/0x1580 [ 5844.423005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5844.423005][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5844.423005][ T254] ipv6_add_addr+0x411/0x2000 [ 5844.423005][ T254] inet6_addr_add+0x30e/0xa40 [ 5844.423005][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5844.423005][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5844.423005][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.423005][ T254] netlink_unicast+0x449/0x710 [ 5844.423005][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.423005][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.423005][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.423005][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.423005][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.423005][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5844.423005][ T254] [ 5844.425253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.425253][ T254] netdev_get_by_index+0x5e/0x80 [ 5844.425253][ T254] fib6_nh_init+0x3d8/0x1580 [ 5844.425253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5844.425253][ T254] ip6_route_add+0x1c/0x140 [ 5844.425253][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5844.425253][ T254] addrconf_add_dev+0xe2/0x170 [ 5844.425253][ T254] inet6_addr_add+0x12f/0xa40 [ 5844.425253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5844.425253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5844.425253][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.425253][ T254] netlink_unicast+0x449/0x710 [ 5844.425253][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.425253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.425253][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.425253][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.425253][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.425253][ T254] [ 5844.427460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.427460][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5844.427460][ T254] ipv6_find_idev+0x102/0x170 [ 5844.427460][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5844.427460][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5844.427460][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.427460][ T254] netlink_unicast+0x449/0x710 [ 5844.427460][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.427460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.427460][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.427460][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.427460][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.427460][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5844.427460][ T254] [ 5844.429193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5844.429193][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5844.429193][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5844.429193][ T254] ipv6_find_idev+0x102/0x170 [ 5844.429193][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5844.429193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5844.429193][ T254] netlink_rcv_skb+0x130/0x360 [ 5844.429193][ T254] netlink_unicast+0x449/0x710 [ 5844.429193][ T254] netlink_sendmsg+0x723/0xbe0 [ 5844.429193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5844.429193][ T254] ___sys_sendmsg+0xee/0x170 [ 5844.429193][ T254] __sys_sendmsg+0xcd/0x170 [ 5844.429193][ T254] do_syscall_64+0xc6/0x1e0 [ 5844.429193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5844.429193][ T254] [ 5854.671834][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5854.672308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.672308][ T254] dst_init+0x84/0x4a0 [ 5854.672308][ T254] dst_alloc+0x97/0x150 [ 5854.672308][ T254] ip6_dst_alloc+0x23/0x90 [ 5854.672308][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5854.672308][ T254] ip6_pol_route+0x56f/0x840 [ 5854.672308][ T254] fib6_rule_lookup+0x334/0x630 [ 5854.672308][ T254] ip6_route_output_flags+0x259/0x480 [ 5854.672308][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5854.672308][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5854.672308][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.672308][ T254] netlink_unicast+0x449/0x710 [ 5854.672308][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.672308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.672308][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.672308][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.672308][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.672308][ T254] [ 5854.674502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.674502][ T254] netdev_get_by_index+0x5e/0x80 [ 5854.674502][ T254] fib6_nh_init+0x3d8/0x1580 [ 5854.674502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5854.674502][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5854.674502][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5854.674502][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5854.674502][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5854.674502][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5854.674502][ T254] addrconf_dad_begin+0x310/0x670 [ 5854.674502][ T254] addrconf_dad_work+0x10b/0xab0 [ 5854.674502][ T254] process_one_work+0x84d/0x18a0 [ 5854.674502][ T254] worker_thread+0x587/0xd30 [ 5854.674502][ T254] kthread+0x28a/0x350 [ 5854.674502][ T254] ret_from_fork+0x31/0x70 [ 5854.674502][ T254] ret_from_fork_asm+0x1a/0x30 [ 5854.674502][ T254] [ 5854.676642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.676642][ T254] netdev_get_by_index+0x5e/0x80 [ 5854.676642][ T254] fib6_nh_init+0x3d8/0x1580 [ 5854.676642][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5854.676642][ T254] ip6_route_add+0x1c/0x140 [ 5854.676642][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5854.676642][ T254] inet6_addr_add+0x4f8/0xa40 [ 5854.676642][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5854.676642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5854.676642][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.676642][ T254] netlink_unicast+0x449/0x710 [ 5854.676642][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.676642][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.676642][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.676642][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.676642][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.676642][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5854.676642][ T254] [ 5854.678876][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.678876][ T254] netdev_get_by_index+0x5e/0x80 [ 5854.678876][ T254] fib6_nh_init+0x3d8/0x1580 [ 5854.678876][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5854.678876][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5854.678876][ T254] ipv6_add_addr+0x411/0x2000 [ 5854.678876][ T254] inet6_addr_add+0x30e/0xa40 [ 5854.678876][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5854.678876][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5854.678876][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.678876][ T254] netlink_unicast+0x449/0x710 [ 5854.678876][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.678876][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.678876][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.678876][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.678876][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.678876][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5854.678876][ T254] [ 5854.681513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.681513][ T254] netdev_get_by_index+0x5e/0x80 [ 5854.681513][ T254] fib6_nh_init+0x3d8/0x1580 [ 5854.681513][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5854.681513][ T254] ip6_route_add+0x1c/0x140 [ 5854.681513][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5854.681513][ T254] addrconf_add_dev+0xe2/0x170 [ 5854.681513][ T254] inet6_addr_add+0x12f/0xa40 [ 5854.681513][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5854.681513][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5854.681513][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.681513][ T254] netlink_unicast+0x449/0x710 [ 5854.681513][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.681513][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.681513][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.681513][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.681513][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.681513][ T254] [ 5854.683708][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.683708][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5854.683708][ T254] ipv6_find_idev+0x102/0x170 [ 5854.683708][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5854.683708][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5854.683708][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.683708][ T254] netlink_unicast+0x449/0x710 [ 5854.683708][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.683708][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.683708][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.683708][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.683708][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.683708][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5854.683708][ T254] [ 5854.685434][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5854.685434][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5854.685434][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5854.685434][ T254] ipv6_find_idev+0x102/0x170 [ 5854.685434][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5854.685434][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5854.685434][ T254] netlink_rcv_skb+0x130/0x360 [ 5854.685434][ T254] netlink_unicast+0x449/0x710 [ 5854.685434][ T254] netlink_sendmsg+0x723/0xbe0 [ 5854.685434][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5854.685434][ T254] ___sys_sendmsg+0xee/0x170 [ 5854.685434][ T254] __sys_sendmsg+0xcd/0x170 [ 5854.685434][ T254] do_syscall_64+0xc6/0x1e0 [ 5854.685434][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5854.685434][ T254] [ 5864.927846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5864.928304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.928304][ T254] dst_init+0x84/0x4a0 [ 5864.928304][ T254] dst_alloc+0x97/0x150 [ 5864.928304][ T254] ip6_dst_alloc+0x23/0x90 [ 5864.928304][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5864.928304][ T254] ip6_pol_route+0x56f/0x840 [ 5864.928304][ T254] fib6_rule_lookup+0x334/0x630 [ 5864.928304][ T254] ip6_route_output_flags+0x259/0x480 [ 5864.928304][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5864.928304][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5864.928304][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.928304][ T254] netlink_unicast+0x449/0x710 [ 5864.928304][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.928304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.928304][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.928304][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.928304][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.928304][ T254] [ 5864.930503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.930503][ T254] netdev_get_by_index+0x5e/0x80 [ 5864.930503][ T254] fib6_nh_init+0x3d8/0x1580 [ 5864.930503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5864.930503][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5864.930503][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5864.930503][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5864.930503][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5864.930503][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5864.930503][ T254] addrconf_dad_begin+0x310/0x670 [ 5864.930503][ T254] addrconf_dad_work+0x10b/0xab0 [ 5864.930503][ T254] process_one_work+0x84d/0x18a0 [ 5864.930503][ T254] worker_thread+0x587/0xd30 [ 5864.930503][ T254] kthread+0x28a/0x350 [ 5864.930503][ T254] ret_from_fork+0x31/0x70 [ 5864.930503][ T254] ret_from_fork_asm+0x1a/0x30 [ 5864.930503][ T254] [ 5864.932639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.932639][ T254] netdev_get_by_index+0x5e/0x80 [ 5864.932639][ T254] fib6_nh_init+0x3d8/0x1580 [ 5864.932639][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5864.932639][ T254] ip6_route_add+0x1c/0x140 [ 5864.932639][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5864.932639][ T254] inet6_addr_add+0x4f8/0xa40 [ 5864.932639][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5864.932639][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5864.932639][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.932639][ T254] netlink_unicast+0x449/0x710 [ 5864.932639][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.932639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.932639][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.932639][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.932639][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.932639][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5864.932639][ T254] [ 5864.934885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.934885][ T254] netdev_get_by_index+0x5e/0x80 [ 5864.934885][ T254] fib6_nh_init+0x3d8/0x1580 [ 5864.934885][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5864.934885][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5864.934885][ T254] ipv6_add_addr+0x411/0x2000 [ 5864.934885][ T254] inet6_addr_add+0x30e/0xa40 [ 5864.934885][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5864.934885][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5864.934885][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.934885][ T254] netlink_unicast+0x449/0x710 [ 5864.934885][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.934885][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.934885][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.934885][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.934885][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.934885][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5864.934885][ T254] [ 5864.937127][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.937127][ T254] netdev_get_by_index+0x5e/0x80 [ 5864.937127][ T254] fib6_nh_init+0x3d8/0x1580 [ 5864.937127][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5864.937127][ T254] ip6_route_add+0x1c/0x140 [ 5864.937127][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5864.937127][ T254] addrconf_add_dev+0xe2/0x170 [ 5864.937127][ T254] inet6_addr_add+0x12f/0xa40 [ 5864.937127][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5864.937127][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5864.937127][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.937127][ T254] netlink_unicast+0x449/0x710 [ 5864.937127][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.937127][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.937127][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.937127][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.937127][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.937127][ T254] [ 5864.939423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.939423][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5864.939423][ T254] ipv6_find_idev+0x102/0x170 [ 5864.939423][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5864.939423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5864.939423][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.939423][ T254] netlink_unicast+0x449/0x710 [ 5864.939423][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.939423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.939423][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.939423][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.939423][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.939423][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5864.939423][ T254] [ 5864.941157][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5864.941157][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5864.941157][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5864.941157][ T254] ipv6_find_idev+0x102/0x170 [ 5864.941157][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5864.941157][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5864.941157][ T254] netlink_rcv_skb+0x130/0x360 [ 5864.941157][ T254] netlink_unicast+0x449/0x710 [ 5864.941157][ T254] netlink_sendmsg+0x723/0xbe0 [ 5864.941157][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5864.941157][ T254] ___sys_sendmsg+0xee/0x170 [ 5864.941157][ T254] __sys_sendmsg+0xcd/0x170 [ 5864.941157][ T254] do_syscall_64+0xc6/0x1e0 [ 5864.941157][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5864.941157][ T254] [ 5875.023844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5875.024255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.024255][ T254] dst_init+0x84/0x4a0 [ 5875.024255][ T254] dst_alloc+0x97/0x150 [ 5875.024255][ T254] ip6_dst_alloc+0x23/0x90 [ 5875.024255][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5875.024255][ T254] ip6_pol_route+0x56f/0x840 [ 5875.024255][ T254] fib6_rule_lookup+0x334/0x630 [ 5875.024255][ T254] ip6_route_output_flags+0x259/0x480 [ 5875.024255][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5875.024255][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5875.024255][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.024255][ T254] netlink_unicast+0x449/0x710 [ 5875.024255][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.024255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.024255][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.024255][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.024255][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.024255][ T254] [ 5875.026436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.026436][ T254] netdev_get_by_index+0x5e/0x80 [ 5875.026436][ T254] fib6_nh_init+0x3d8/0x1580 [ 5875.026436][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5875.026436][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5875.026436][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5875.026436][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5875.026436][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5875.026436][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5875.026436][ T254] addrconf_dad_begin+0x310/0x670 [ 5875.026436][ T254] addrconf_dad_work+0x10b/0xab0 [ 5875.026436][ T254] process_one_work+0x84d/0x18a0 [ 5875.026436][ T254] worker_thread+0x587/0xd30 [ 5875.026436][ T254] kthread+0x28a/0x350 [ 5875.026436][ T254] ret_from_fork+0x31/0x70 [ 5875.026436][ T254] ret_from_fork_asm+0x1a/0x30 [ 5875.026436][ T254] [ 5875.028582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.028582][ T254] netdev_get_by_index+0x5e/0x80 [ 5875.028582][ T254] fib6_nh_init+0x3d8/0x1580 [ 5875.028582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5875.028582][ T254] ip6_route_add+0x1c/0x140 [ 5875.028582][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5875.028582][ T254] inet6_addr_add+0x4f8/0xa40 [ 5875.028582][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5875.028582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5875.028582][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.028582][ T254] netlink_unicast+0x449/0x710 [ 5875.028582][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.028582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.028582][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.028582][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.028582][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.028582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5875.028582][ T254] [ 5875.030827][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.030827][ T254] netdev_get_by_index+0x5e/0x80 [ 5875.030827][ T254] fib6_nh_init+0x3d8/0x1580 [ 5875.030827][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5875.030827][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5875.030827][ T254] ipv6_add_addr+0x411/0x2000 [ 5875.030827][ T254] inet6_addr_add+0x30e/0xa40 [ 5875.030827][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5875.030827][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5875.030827][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.030827][ T254] netlink_unicast+0x449/0x710 [ 5875.030827][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.030827][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.030827][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.030827][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.030827][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.030827][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5875.030827][ T254] [ 5875.033077][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.033077][ T254] netdev_get_by_index+0x5e/0x80 [ 5875.033077][ T254] fib6_nh_init+0x3d8/0x1580 [ 5875.033077][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5875.033077][ T254] ip6_route_add+0x1c/0x140 [ 5875.033077][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5875.033077][ T254] addrconf_add_dev+0xe2/0x170 [ 5875.033077][ T254] inet6_addr_add+0x12f/0xa40 [ 5875.033077][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5875.033077][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5875.033077][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.033077][ T254] netlink_unicast+0x449/0x710 [ 5875.033077][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.033077][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.033077][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.033077][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.033077][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.033077][ T254] [ 5875.035266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.035266][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5875.035266][ T254] ipv6_find_idev+0x102/0x170 [ 5875.035266][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5875.035266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5875.035266][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.035266][ T254] netlink_unicast+0x449/0x710 [ 5875.035266][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.035266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.035266][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.035266][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.035266][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.035266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5875.035266][ T254] [ 5875.036983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5875.036983][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5875.036983][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5875.036983][ T254] ipv6_find_idev+0x102/0x170 [ 5875.036983][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5875.036983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5875.036983][ T254] netlink_rcv_skb+0x130/0x360 [ 5875.036983][ T254] netlink_unicast+0x449/0x710 [ 5875.036983][ T254] netlink_sendmsg+0x723/0xbe0 [ 5875.036983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5875.036983][ T254] ___sys_sendmsg+0xee/0x170 [ 5875.036983][ T254] __sys_sendmsg+0xcd/0x170 [ 5875.036983][ T254] do_syscall_64+0xc6/0x1e0 [ 5875.036983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5875.036983][ T254] [ 5885.199787][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5885.200261][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.200261][ T254] dst_init+0x84/0x4a0 [ 5885.200261][ T254] dst_alloc+0x97/0x150 [ 5885.200261][ T254] ip6_dst_alloc+0x23/0x90 [ 5885.200261][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5885.200261][ T254] ip6_pol_route+0x56f/0x840 [ 5885.200261][ T254] fib6_rule_lookup+0x334/0x630 [ 5885.200261][ T254] ip6_route_output_flags+0x259/0x480 [ 5885.200261][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5885.200261][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5885.200261][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.200261][ T254] netlink_unicast+0x449/0x710 [ 5885.200261][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.200261][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.200261][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.200261][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.200261][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.200261][ T254] [ 5885.202448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.202448][ T254] netdev_get_by_index+0x5e/0x80 [ 5885.202448][ T254] fib6_nh_init+0x3d8/0x1580 [ 5885.202448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5885.202448][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5885.202448][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5885.202448][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5885.202448][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5885.202448][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5885.202448][ T254] addrconf_dad_begin+0x310/0x670 [ 5885.202448][ T254] addrconf_dad_work+0x10b/0xab0 [ 5885.202448][ T254] process_one_work+0x84d/0x18a0 [ 5885.202448][ T254] worker_thread+0x587/0xd30 [ 5885.202448][ T254] kthread+0x28a/0x350 [ 5885.202448][ T254] ret_from_fork+0x31/0x70 [ 5885.202448][ T254] ret_from_fork_asm+0x1a/0x30 [ 5885.202448][ T254] [ 5885.204598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.204598][ T254] netdev_get_by_index+0x5e/0x80 [ 5885.204598][ T254] fib6_nh_init+0x3d8/0x1580 [ 5885.204598][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5885.204598][ T254] ip6_route_add+0x1c/0x140 [ 5885.204598][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5885.204598][ T254] inet6_addr_add+0x4f8/0xa40 [ 5885.204598][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5885.204598][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5885.204598][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.204598][ T254] netlink_unicast+0x449/0x710 [ 5885.204598][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.204598][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.204598][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.204598][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.204598][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.204598][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5885.204598][ T254] [ 5885.206833][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.206833][ T254] netdev_get_by_index+0x5e/0x80 [ 5885.206833][ T254] fib6_nh_init+0x3d8/0x1580 [ 5885.206833][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5885.206833][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5885.206833][ T254] ipv6_add_addr+0x411/0x2000 [ 5885.206833][ T254] inet6_addr_add+0x30e/0xa40 [ 5885.206833][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5885.206833][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5885.206833][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.206833][ T254] netlink_unicast+0x449/0x710 [ 5885.206833][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.206833][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.206833][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.206833][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.206833][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.206833][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5885.206833][ T254] [ 5885.209068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.209068][ T254] netdev_get_by_index+0x5e/0x80 [ 5885.209068][ T254] fib6_nh_init+0x3d8/0x1580 [ 5885.209068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5885.209068][ T254] ip6_route_add+0x1c/0x140 [ 5885.209068][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5885.209068][ T254] addrconf_add_dev+0xe2/0x170 [ 5885.209068][ T254] inet6_addr_add+0x12f/0xa40 [ 5885.209068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5885.209068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5885.209068][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.209068][ T254] netlink_unicast+0x449/0x710 [ 5885.209068][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.209068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.209068][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.209068][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.209068][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.209068][ T254] [ 5885.211266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.211266][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5885.211266][ T254] ipv6_find_idev+0x102/0x170 [ 5885.211266][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5885.211266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5885.211266][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.211266][ T254] netlink_unicast+0x449/0x710 [ 5885.211266][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.211266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.211266][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.211266][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.211266][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.211266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5885.211266][ T254] [ 5885.212985][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5885.212985][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5885.212985][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5885.212985][ T254] ipv6_find_idev+0x102/0x170 [ 5885.212985][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5885.212985][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5885.212985][ T254] netlink_rcv_skb+0x130/0x360 [ 5885.212985][ T254] netlink_unicast+0x449/0x710 [ 5885.212985][ T254] netlink_sendmsg+0x723/0xbe0 [ 5885.212985][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5885.212985][ T254] ___sys_sendmsg+0xee/0x170 [ 5885.212985][ T254] __sys_sendmsg+0xcd/0x170 [ 5885.212985][ T254] do_syscall_64+0xc6/0x1e0 [ 5885.212985][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5885.212985][ T254] [ 5895.463853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5895.464316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.464316][ T254] dst_init+0x84/0x4a0 [ 5895.464316][ T254] dst_alloc+0x97/0x150 [ 5895.464316][ T254] ip6_dst_alloc+0x23/0x90 [ 5895.464316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5895.464316][ T254] ip6_pol_route+0x56f/0x840 [ 5895.464316][ T254] fib6_rule_lookup+0x334/0x630 [ 5895.464316][ T254] ip6_route_output_flags+0x259/0x480 [ 5895.464316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5895.464316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5895.464316][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.464316][ T254] netlink_unicast+0x449/0x710 [ 5895.464316][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.464316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.464316][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.464316][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.464316][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.464316][ T254] [ 5895.466505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.466505][ T254] netdev_get_by_index+0x5e/0x80 [ 5895.466505][ T254] fib6_nh_init+0x3d8/0x1580 [ 5895.466505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5895.466505][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5895.466505][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5895.466505][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5895.466505][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5895.466505][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5895.466505][ T254] addrconf_dad_begin+0x310/0x670 [ 5895.466505][ T254] addrconf_dad_work+0x10b/0xab0 [ 5895.466505][ T254] process_one_work+0x84d/0x18a0 [ 5895.466505][ T254] worker_thread+0x587/0xd30 [ 5895.466505][ T254] kthread+0x28a/0x350 [ 5895.466505][ T254] ret_from_fork+0x31/0x70 [ 5895.466505][ T254] ret_from_fork_asm+0x1a/0x30 [ 5895.466505][ T254] [ 5895.468645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.468645][ T254] netdev_get_by_index+0x5e/0x80 [ 5895.468645][ T254] fib6_nh_init+0x3d8/0x1580 [ 5895.468645][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5895.468645][ T254] ip6_route_add+0x1c/0x140 [ 5895.468645][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5895.468645][ T254] inet6_addr_add+0x4f8/0xa40 [ 5895.468645][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5895.468645][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5895.468645][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.468645][ T254] netlink_unicast+0x449/0x710 [ 5895.468645][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.468645][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.468645][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.468645][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.468645][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.468645][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5895.468645][ T254] [ 5895.470912][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.470912][ T254] netdev_get_by_index+0x5e/0x80 [ 5895.470912][ T254] fib6_nh_init+0x3d8/0x1580 [ 5895.470912][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5895.470912][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5895.470912][ T254] ipv6_add_addr+0x411/0x2000 [ 5895.470912][ T254] inet6_addr_add+0x30e/0xa40 [ 5895.470912][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5895.470912][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5895.470912][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.470912][ T254] netlink_unicast+0x449/0x710 [ 5895.470912][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.470912][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.470912][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.470912][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.470912][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.470912][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5895.470912][ T254] [ 5895.473148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.473148][ T254] netdev_get_by_index+0x5e/0x80 [ 5895.473148][ T254] fib6_nh_init+0x3d8/0x1580 [ 5895.473148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5895.473148][ T254] ip6_route_add+0x1c/0x140 [ 5895.473148][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5895.473148][ T254] addrconf_add_dev+0xe2/0x170 [ 5895.473148][ T254] inet6_addr_add+0x12f/0xa40 [ 5895.473148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5895.473148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5895.473148][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.473148][ T254] netlink_unicast+0x449/0x710 [ 5895.473148][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.473148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.473148][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.473148][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.473148][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.473148][ T254] [ 5895.475337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.475337][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5895.475337][ T254] ipv6_find_idev+0x102/0x170 [ 5895.475337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5895.475337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5895.475337][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.475337][ T254] netlink_unicast+0x449/0x710 [ 5895.475337][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.475337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.475337][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.475337][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.475337][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.475337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5895.475337][ T254] [ 5895.477053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5895.477053][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5895.477053][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5895.477053][ T254] ipv6_find_idev+0x102/0x170 [ 5895.477053][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5895.477053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5895.477053][ T254] netlink_rcv_skb+0x130/0x360 [ 5895.477053][ T254] netlink_unicast+0x449/0x710 [ 5895.477053][ T254] netlink_sendmsg+0x723/0xbe0 [ 5895.477053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5895.477053][ T254] ___sys_sendmsg+0xee/0x170 [ 5895.477053][ T254] __sys_sendmsg+0xcd/0x170 [ 5895.477053][ T254] do_syscall_64+0xc6/0x1e0 [ 5895.477053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5895.477053][ T254] [ 5905.727844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5905.728305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.728305][ T254] dst_init+0x84/0x4a0 [ 5905.728305][ T254] dst_alloc+0x97/0x150 [ 5905.728305][ T254] ip6_dst_alloc+0x23/0x90 [ 5905.728305][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5905.728305][ T254] ip6_pol_route+0x56f/0x840 [ 5905.728305][ T254] fib6_rule_lookup+0x334/0x630 [ 5905.728305][ T254] ip6_route_output_flags+0x259/0x480 [ 5905.728305][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5905.728305][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5905.728305][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.728305][ T254] netlink_unicast+0x449/0x710 [ 5905.728305][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.728305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.728305][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.728305][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.728305][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.728305][ T254] [ 5905.730606][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.730606][ T254] netdev_get_by_index+0x5e/0x80 [ 5905.730606][ T254] fib6_nh_init+0x3d8/0x1580 [ 5905.730606][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5905.730606][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5905.730606][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5905.730606][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5905.730606][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5905.730606][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5905.730606][ T254] addrconf_dad_begin+0x310/0x670 [ 5905.730606][ T254] addrconf_dad_work+0x10b/0xab0 [ 5905.730606][ T254] process_one_work+0x84d/0x18a0 [ 5905.730606][ T254] worker_thread+0x587/0xd30 [ 5905.730606][ T254] kthread+0x28a/0x350 [ 5905.730606][ T254] ret_from_fork+0x31/0x70 [ 5905.730606][ T254] ret_from_fork_asm+0x1a/0x30 [ 5905.730606][ T254] [ 5905.732745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.732745][ T254] netdev_get_by_index+0x5e/0x80 [ 5905.732745][ T254] fib6_nh_init+0x3d8/0x1580 [ 5905.732745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5905.732745][ T254] ip6_route_add+0x1c/0x140 [ 5905.732745][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5905.732745][ T254] inet6_addr_add+0x4f8/0xa40 [ 5905.732745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5905.732745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5905.732745][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.732745][ T254] netlink_unicast+0x449/0x710 [ 5905.732745][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.732745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.732745][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.732745][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.732745][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.732745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5905.732745][ T254] [ 5905.734987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.734987][ T254] netdev_get_by_index+0x5e/0x80 [ 5905.734987][ T254] fib6_nh_init+0x3d8/0x1580 [ 5905.734987][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5905.734987][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5905.734987][ T254] ipv6_add_addr+0x411/0x2000 [ 5905.734987][ T254] inet6_addr_add+0x30e/0xa40 [ 5905.734987][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5905.734987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5905.734987][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.734987][ T254] netlink_unicast+0x449/0x710 [ 5905.734987][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.734987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.734987][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.734987][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.734987][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.734987][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5905.734987][ T254] [ 5905.737224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.737224][ T254] netdev_get_by_index+0x5e/0x80 [ 5905.737224][ T254] fib6_nh_init+0x3d8/0x1580 [ 5905.737224][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5905.737224][ T254] ip6_route_add+0x1c/0x140 [ 5905.737224][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5905.737224][ T254] addrconf_add_dev+0xe2/0x170 [ 5905.737224][ T254] inet6_addr_add+0x12f/0xa40 [ 5905.737224][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5905.737224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5905.737224][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.737224][ T254] netlink_unicast+0x449/0x710 [ 5905.737224][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.737224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.737224][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.737224][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.737224][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.737224][ T254] [ 5905.739969][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.739969][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5905.739969][ T254] ipv6_find_idev+0x102/0x170 [ 5905.739969][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5905.739969][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5905.739969][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.739969][ T254] netlink_unicast+0x449/0x710 [ 5905.739969][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.739969][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.739969][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.739969][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.739969][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.739969][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5905.739969][ T254] [ 5905.741695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5905.741695][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5905.741695][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5905.741695][ T254] ipv6_find_idev+0x102/0x170 [ 5905.741695][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5905.741695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5905.741695][ T254] netlink_rcv_skb+0x130/0x360 [ 5905.741695][ T254] netlink_unicast+0x449/0x710 [ 5905.741695][ T254] netlink_sendmsg+0x723/0xbe0 [ 5905.741695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5905.741695][ T254] ___sys_sendmsg+0xee/0x170 [ 5905.741695][ T254] __sys_sendmsg+0xcd/0x170 [ 5905.741695][ T254] do_syscall_64+0xc6/0x1e0 [ 5905.741695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5905.741695][ T254] [ 5915.991873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5915.992347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5915.992347][ T254] dst_init+0x84/0x4a0 [ 5915.992347][ T254] dst_alloc+0x97/0x150 [ 5915.992347][ T254] ip6_dst_alloc+0x23/0x90 [ 5915.992347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5915.992347][ T254] ip6_pol_route+0x56f/0x840 [ 5915.992347][ T254] fib6_rule_lookup+0x334/0x630 [ 5915.992347][ T254] ip6_route_output_flags+0x259/0x480 [ 5915.992347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5915.992347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5915.992347][ T254] netlink_rcv_skb+0x130/0x360 [ 5915.992347][ T254] netlink_unicast+0x449/0x710 [ 5915.992347][ T254] netlink_sendmsg+0x723/0xbe0 [ 5915.992347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5915.992347][ T254] ___sys_sendmsg+0xee/0x170 [ 5915.992347][ T254] __sys_sendmsg+0xcd/0x170 [ 5915.992347][ T254] do_syscall_64+0xc6/0x1e0 [ 5915.992347][ T254] [ 5915.994544][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5915.994544][ T254] netdev_get_by_index+0x5e/0x80 [ 5915.994544][ T254] fib6_nh_init+0x3d8/0x1580 [ 5915.994544][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5915.994544][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5915.994544][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5915.994544][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5915.994544][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5915.994544][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5915.994544][ T254] addrconf_dad_begin+0x310/0x670 [ 5915.994544][ T254] addrconf_dad_work+0x10b/0xab0 [ 5915.994544][ T254] process_one_work+0x84d/0x18a0 [ 5915.994544][ T254] worker_thread+0x587/0xd30 [ 5915.994544][ T254] kthread+0x28a/0x350 [ 5915.994544][ T254] ret_from_fork+0x31/0x70 [ 5915.994544][ T254] ret_from_fork_asm+0x1a/0x30 [ 5915.994544][ T254] [ 5915.996688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5915.996688][ T254] netdev_get_by_index+0x5e/0x80 [ 5915.996688][ T254] fib6_nh_init+0x3d8/0x1580 [ 5915.996688][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5915.996688][ T254] ip6_route_add+0x1c/0x140 [ 5915.996688][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5915.996688][ T254] inet6_addr_add+0x4f8/0xa40 [ 5915.996688][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5915.996688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5915.996688][ T254] netlink_rcv_skb+0x130/0x360 [ 5915.996688][ T254] netlink_unicast+0x449/0x710 [ 5915.996688][ T254] netlink_sendmsg+0x723/0xbe0 [ 5915.996688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5915.996688][ T254] ___sys_sendmsg+0xee/0x170 [ 5915.996688][ T254] __sys_sendmsg+0xcd/0x170 [ 5915.996688][ T254] do_syscall_64+0xc6/0x1e0 [ 5915.996688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5915.996688][ T254] [ 5915.998925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5915.998925][ T254] netdev_get_by_index+0x5e/0x80 [ 5915.998925][ T254] fib6_nh_init+0x3d8/0x1580 [ 5915.998925][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5915.998925][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5915.998925][ T254] ipv6_add_addr+0x411/0x2000 [ 5915.998925][ T254] inet6_addr_add+0x30e/0xa40 [ 5915.998925][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5915.998925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5915.998925][ T254] netlink_rcv_skb+0x130/0x360 [ 5915.998925][ T254] netlink_unicast+0x449/0x710 [ 5915.998925][ T254] netlink_sendmsg+0x723/0xbe0 [ 5915.998925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5915.998925][ T254] ___sys_sendmsg+0xee/0x170 [ 5915.998925][ T254] __sys_sendmsg+0xcd/0x170 [ 5915.998925][ T254] do_syscall_64+0xc6/0x1e0 [ 5915.998925][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5915.998925][ T254] [ 5916.001184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5916.001184][ T254] netdev_get_by_index+0x5e/0x80 [ 5916.001184][ T254] fib6_nh_init+0x3d8/0x1580 [ 5916.001184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5916.001184][ T254] ip6_route_add+0x1c/0x140 [ 5916.001184][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5916.001184][ T254] addrconf_add_dev+0xe2/0x170 [ 5916.001184][ T254] inet6_addr_add+0x12f/0xa40 [ 5916.001184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5916.001184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5916.001184][ T254] netlink_rcv_skb+0x130/0x360 [ 5916.001184][ T254] netlink_unicast+0x449/0x710 [ 5916.001184][ T254] netlink_sendmsg+0x723/0xbe0 [ 5916.001184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5916.001184][ T254] ___sys_sendmsg+0xee/0x170 [ 5916.001184][ T254] __sys_sendmsg+0xcd/0x170 [ 5916.001184][ T254] do_syscall_64+0xc6/0x1e0 [ 5916.001184][ T254] [ 5916.003377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5916.003377][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5916.003377][ T254] ipv6_find_idev+0x102/0x170 [ 5916.003377][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5916.003377][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5916.003377][ T254] netlink_rcv_skb+0x130/0x360 [ 5916.003377][ T254] netlink_unicast+0x449/0x710 [ 5916.003377][ T254] netlink_sendmsg+0x723/0xbe0 [ 5916.003377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5916.003377][ T254] ___sys_sendmsg+0xee/0x170 [ 5916.003377][ T254] __sys_sendmsg+0xcd/0x170 [ 5916.003377][ T254] do_syscall_64+0xc6/0x1e0 [ 5916.003377][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5916.003377][ T254] [ 5916.005103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5916.005103][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5916.005103][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5916.005103][ T254] ipv6_find_idev+0x102/0x170 [ 5916.005103][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5916.005103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5916.005103][ T254] netlink_rcv_skb+0x130/0x360 [ 5916.005103][ T254] netlink_unicast+0x449/0x710 [ 5916.005103][ T254] netlink_sendmsg+0x723/0xbe0 [ 5916.005103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5916.005103][ T254] ___sys_sendmsg+0xee/0x170 [ 5916.005103][ T254] __sys_sendmsg+0xcd/0x170 [ 5916.005103][ T254] do_syscall_64+0xc6/0x1e0 [ 5916.005103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5916.005103][ T254] [ 5926.335849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5926.336320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.336320][ T254] dst_init+0x84/0x4a0 [ 5926.336320][ T254] dst_alloc+0x97/0x150 [ 5926.336320][ T254] ip6_dst_alloc+0x23/0x90 [ 5926.336320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5926.336320][ T254] ip6_pol_route+0x56f/0x840 [ 5926.336320][ T254] fib6_rule_lookup+0x334/0x630 [ 5926.336320][ T254] ip6_route_output_flags+0x259/0x480 [ 5926.336320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5926.336320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5926.336320][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.336320][ T254] netlink_unicast+0x449/0x710 [ 5926.336320][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.336320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.336320][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.336320][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.336320][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.336320][ T254] [ 5926.338509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.338509][ T254] netdev_get_by_index+0x5e/0x80 [ 5926.338509][ T254] fib6_nh_init+0x3d8/0x1580 [ 5926.338509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5926.338509][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5926.338509][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5926.338509][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5926.338509][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5926.338509][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5926.338509][ T254] addrconf_dad_begin+0x310/0x670 [ 5926.338509][ T254] addrconf_dad_work+0x10b/0xab0 [ 5926.338509][ T254] process_one_work+0x84d/0x18a0 [ 5926.338509][ T254] worker_thread+0x587/0xd30 [ 5926.338509][ T254] kthread+0x28a/0x350 [ 5926.338509][ T254] ret_from_fork+0x31/0x70 [ 5926.338509][ T254] ret_from_fork_asm+0x1a/0x30 [ 5926.338509][ T254] [ 5926.340652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.340652][ T254] netdev_get_by_index+0x5e/0x80 [ 5926.340652][ T254] fib6_nh_init+0x3d8/0x1580 [ 5926.340652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5926.340652][ T254] ip6_route_add+0x1c/0x140 [ 5926.340652][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5926.340652][ T254] inet6_addr_add+0x4f8/0xa40 [ 5926.340652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5926.340652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5926.340652][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.340652][ T254] netlink_unicast+0x449/0x710 [ 5926.340652][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.340652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.340652][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.340652][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.340652][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.340652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5926.340652][ T254] [ 5926.342888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.342888][ T254] netdev_get_by_index+0x5e/0x80 [ 5926.342888][ T254] fib6_nh_init+0x3d8/0x1580 [ 5926.342888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5926.342888][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5926.342888][ T254] ipv6_add_addr+0x411/0x2000 [ 5926.342888][ T254] inet6_addr_add+0x30e/0xa40 [ 5926.342888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5926.342888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5926.342888][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.342888][ T254] netlink_unicast+0x449/0x710 [ 5926.342888][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.342888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.342888][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.342888][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.342888][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.342888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5926.342888][ T254] [ 5926.345130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.345130][ T254] netdev_get_by_index+0x5e/0x80 [ 5926.345130][ T254] fib6_nh_init+0x3d8/0x1580 [ 5926.345130][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5926.345130][ T254] ip6_route_add+0x1c/0x140 [ 5926.345130][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5926.345130][ T254] addrconf_add_dev+0xe2/0x170 [ 5926.345130][ T254] inet6_addr_add+0x12f/0xa40 [ 5926.345130][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5926.345130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5926.345130][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.345130][ T254] netlink_unicast+0x449/0x710 [ 5926.345130][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.345130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.345130][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.345130][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.345130][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.345130][ T254] [ 5926.347318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.347318][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5926.347318][ T254] ipv6_find_idev+0x102/0x170 [ 5926.347318][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5926.347318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5926.347318][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.347318][ T254] netlink_unicast+0x449/0x710 [ 5926.347318][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.347318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.347318][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.347318][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.347318][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.347318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5926.347318][ T254] [ 5926.349045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5926.349045][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5926.349045][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5926.349045][ T254] ipv6_find_idev+0x102/0x170 [ 5926.349045][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5926.349045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5926.349045][ T254] netlink_rcv_skb+0x130/0x360 [ 5926.349045][ T254] netlink_unicast+0x449/0x710 [ 5926.349045][ T254] netlink_sendmsg+0x723/0xbe0 [ 5926.349045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5926.349045][ T254] ___sys_sendmsg+0xee/0x170 [ 5926.349045][ T254] __sys_sendmsg+0xcd/0x170 [ 5926.349045][ T254] do_syscall_64+0xc6/0x1e0 [ 5926.349045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5926.349045][ T254] [ 5936.375870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5936.376348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.376348][ T254] dst_init+0x84/0x4a0 [ 5936.376348][ T254] dst_alloc+0x97/0x150 [ 5936.376348][ T254] ip6_dst_alloc+0x23/0x90 [ 5936.376348][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5936.376348][ T254] ip6_pol_route+0x56f/0x840 [ 5936.376348][ T254] fib6_rule_lookup+0x334/0x630 [ 5936.376348][ T254] ip6_route_output_flags+0x259/0x480 [ 5936.376348][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5936.376348][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5936.376348][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.376348][ T254] netlink_unicast+0x449/0x710 [ 5936.376348][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.376348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.376348][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.376348][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.376348][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.376348][ T254] [ 5936.378563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.378563][ T254] netdev_get_by_index+0x5e/0x80 [ 5936.378563][ T254] fib6_nh_init+0x3d8/0x1580 [ 5936.378563][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5936.378563][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5936.378563][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5936.378563][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5936.378563][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5936.378563][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5936.378563][ T254] addrconf_dad_begin+0x310/0x670 [ 5936.378563][ T254] addrconf_dad_work+0x10b/0xab0 [ 5936.378563][ T254] process_one_work+0x84d/0x18a0 [ 5936.378563][ T254] worker_thread+0x587/0xd30 [ 5936.378563][ T254] kthread+0x28a/0x350 [ 5936.378563][ T254] ret_from_fork+0x31/0x70 [ 5936.378563][ T254] ret_from_fork_asm+0x1a/0x30 [ 5936.378563][ T254] [ 5936.380766][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.380766][ T254] netdev_get_by_index+0x5e/0x80 [ 5936.380766][ T254] fib6_nh_init+0x3d8/0x1580 [ 5936.380766][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5936.380766][ T254] ip6_route_add+0x1c/0x140 [ 5936.380766][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5936.380766][ T254] inet6_addr_add+0x4f8/0xa40 [ 5936.380766][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5936.380766][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5936.380766][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.380766][ T254] netlink_unicast+0x449/0x710 [ 5936.380766][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.380766][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.380766][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.380766][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.380766][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.380766][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5936.380766][ T254] [ 5936.383543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.383543][ T254] netdev_get_by_index+0x5e/0x80 [ 5936.383543][ T254] fib6_nh_init+0x3d8/0x1580 [ 5936.383543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5936.383543][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5936.383543][ T254] ipv6_add_addr+0x411/0x2000 [ 5936.383543][ T254] inet6_addr_add+0x30e/0xa40 [ 5936.383543][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5936.383543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5936.383543][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.383543][ T254] netlink_unicast+0x449/0x710 [ 5936.383543][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.383543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.383543][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.383543][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.383543][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.383543][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5936.383543][ T254] [ 5936.385794][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.385794][ T254] netdev_get_by_index+0x5e/0x80 [ 5936.385794][ T254] fib6_nh_init+0x3d8/0x1580 [ 5936.385794][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5936.385794][ T254] ip6_route_add+0x1c/0x140 [ 5936.385794][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5936.385794][ T254] addrconf_add_dev+0xe2/0x170 [ 5936.385794][ T254] inet6_addr_add+0x12f/0xa40 [ 5936.385794][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5936.385794][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5936.385794][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.385794][ T254] netlink_unicast+0x449/0x710 [ 5936.385794][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.385794][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.385794][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.385794][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.385794][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.385794][ T254] [ 5936.388008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.388008][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5936.388008][ T254] ipv6_find_idev+0x102/0x170 [ 5936.388008][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5936.388008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5936.388008][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.388008][ T254] netlink_unicast+0x449/0x710 [ 5936.388008][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.388008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.388008][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.388008][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.388008][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.388008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5936.388008][ T254] [ 5936.389747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5936.389747][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5936.389747][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5936.389747][ T254] ipv6_find_idev+0x102/0x170 [ 5936.389747][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5936.389747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5936.389747][ T254] netlink_rcv_skb+0x130/0x360 [ 5936.389747][ T254] netlink_unicast+0x449/0x710 [ 5936.389747][ T254] netlink_sendmsg+0x723/0xbe0 [ 5936.389747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5936.389747][ T254] ___sys_sendmsg+0xee/0x170 [ 5936.389747][ T254] __sys_sendmsg+0xcd/0x170 [ 5936.389747][ T254] do_syscall_64+0xc6/0x1e0 [ 5936.389747][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5936.389747][ T254] [ 5946.423838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5946.424307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.424307][ T254] dst_init+0x84/0x4a0 [ 5946.424307][ T254] dst_alloc+0x97/0x150 [ 5946.424307][ T254] ip6_dst_alloc+0x23/0x90 [ 5946.424307][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5946.424307][ T254] ip6_pol_route+0x56f/0x840 [ 5946.424307][ T254] fib6_rule_lookup+0x334/0x630 [ 5946.424307][ T254] ip6_route_output_flags+0x259/0x480 [ 5946.424307][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5946.424307][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5946.424307][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.424307][ T254] netlink_unicast+0x449/0x710 [ 5946.424307][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.424307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.424307][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.424307][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.424307][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.424307][ T254] [ 5946.426500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.426500][ T254] netdev_get_by_index+0x5e/0x80 [ 5946.426500][ T254] fib6_nh_init+0x3d8/0x1580 [ 5946.426500][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5946.426500][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5946.426500][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5946.426500][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5946.426500][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5946.426500][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5946.426500][ T254] addrconf_dad_begin+0x310/0x670 [ 5946.426500][ T254] addrconf_dad_work+0x10b/0xab0 [ 5946.426500][ T254] process_one_work+0x84d/0x18a0 [ 5946.426500][ T254] worker_thread+0x587/0xd30 [ 5946.426500][ T254] kthread+0x28a/0x350 [ 5946.426500][ T254] ret_from_fork+0x31/0x70 [ 5946.426500][ T254] ret_from_fork_asm+0x1a/0x30 [ 5946.426500][ T254] [ 5946.428641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.428641][ T254] netdev_get_by_index+0x5e/0x80 [ 5946.428641][ T254] fib6_nh_init+0x3d8/0x1580 [ 5946.428641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5946.428641][ T254] ip6_route_add+0x1c/0x140 [ 5946.428641][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5946.428641][ T254] inet6_addr_add+0x4f8/0xa40 [ 5946.428641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5946.428641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5946.428641][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.428641][ T254] netlink_unicast+0x449/0x710 [ 5946.428641][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.428641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.428641][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.428641][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.428641][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.428641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5946.428641][ T254] [ 5946.430883][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.430883][ T254] netdev_get_by_index+0x5e/0x80 [ 5946.430883][ T254] fib6_nh_init+0x3d8/0x1580 [ 5946.430883][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5946.430883][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5946.430883][ T254] ipv6_add_addr+0x411/0x2000 [ 5946.430883][ T254] inet6_addr_add+0x30e/0xa40 [ 5946.430883][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5946.430883][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5946.430883][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.430883][ T254] netlink_unicast+0x449/0x710 [ 5946.430883][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.430883][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.430883][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.430883][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.430883][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.430883][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5946.430883][ T254] [ 5946.433118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.433118][ T254] netdev_get_by_index+0x5e/0x80 [ 5946.433118][ T254] fib6_nh_init+0x3d8/0x1580 [ 5946.433118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5946.433118][ T254] ip6_route_add+0x1c/0x140 [ 5946.433118][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5946.433118][ T254] addrconf_add_dev+0xe2/0x170 [ 5946.433118][ T254] inet6_addr_add+0x12f/0xa40 [ 5946.433118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5946.433118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5946.433118][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.433118][ T254] netlink_unicast+0x449/0x710 [ 5946.433118][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.433118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.433118][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.433118][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.433118][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.433118][ T254] [ 5946.435337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.435337][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5946.435337][ T254] ipv6_find_idev+0x102/0x170 [ 5946.435337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5946.435337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5946.435337][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.435337][ T254] netlink_unicast+0x449/0x710 [ 5946.435337][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.435337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.435337][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.435337][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.435337][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.435337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5946.435337][ T254] [ 5946.437058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5946.437058][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5946.437058][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5946.437058][ T254] ipv6_find_idev+0x102/0x170 [ 5946.437058][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5946.437058][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5946.437058][ T254] netlink_rcv_skb+0x130/0x360 [ 5946.437058][ T254] netlink_unicast+0x449/0x710 [ 5946.437058][ T254] netlink_sendmsg+0x723/0xbe0 [ 5946.437058][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5946.437058][ T254] ___sys_sendmsg+0xee/0x170 [ 5946.437058][ T254] __sys_sendmsg+0xcd/0x170 [ 5946.437058][ T254] do_syscall_64+0xc6/0x1e0 [ 5946.437058][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5946.437058][ T254] [ 5956.687844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5956.688308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.688308][ T254] dst_init+0x84/0x4a0 [ 5956.688308][ T254] dst_alloc+0x97/0x150 [ 5956.688308][ T254] ip6_dst_alloc+0x23/0x90 [ 5956.688308][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5956.688308][ T254] ip6_pol_route+0x56f/0x840 [ 5956.688308][ T254] fib6_rule_lookup+0x334/0x630 [ 5956.688308][ T254] ip6_route_output_flags+0x259/0x480 [ 5956.688308][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5956.688308][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5956.688308][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.688308][ T254] netlink_unicast+0x449/0x710 [ 5956.688308][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.688308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.688308][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.688308][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.688308][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.688308][ T254] [ 5956.690500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.690500][ T254] netdev_get_by_index+0x5e/0x80 [ 5956.690500][ T254] fib6_nh_init+0x3d8/0x1580 [ 5956.690500][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5956.690500][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5956.690500][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5956.690500][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5956.690500][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5956.690500][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5956.690500][ T254] addrconf_dad_begin+0x310/0x670 [ 5956.690500][ T254] addrconf_dad_work+0x10b/0xab0 [ 5956.690500][ T254] process_one_work+0x84d/0x18a0 [ 5956.690500][ T254] worker_thread+0x587/0xd30 [ 5956.690500][ T254] kthread+0x28a/0x350 [ 5956.690500][ T254] ret_from_fork+0x31/0x70 [ 5956.690500][ T254] ret_from_fork_asm+0x1a/0x30 [ 5956.690500][ T254] [ 5956.692641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.692641][ T254] netdev_get_by_index+0x5e/0x80 [ 5956.692641][ T254] fib6_nh_init+0x3d8/0x1580 [ 5956.692641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5956.692641][ T254] ip6_route_add+0x1c/0x140 [ 5956.692641][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5956.692641][ T254] inet6_addr_add+0x4f8/0xa40 [ 5956.692641][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5956.692641][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5956.692641][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.692641][ T254] netlink_unicast+0x449/0x710 [ 5956.692641][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.692641][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.692641][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.692641][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.692641][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.692641][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5956.692641][ T254] [ 5956.694868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.694868][ T254] netdev_get_by_index+0x5e/0x80 [ 5956.694868][ T254] fib6_nh_init+0x3d8/0x1580 [ 5956.694868][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5956.694868][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5956.694868][ T254] ipv6_add_addr+0x411/0x2000 [ 5956.694868][ T254] inet6_addr_add+0x30e/0xa40 [ 5956.694868][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5956.694868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5956.694868][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.694868][ T254] netlink_unicast+0x449/0x710 [ 5956.694868][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.694868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.694868][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.694868][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.694868][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.694868][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5956.694868][ T254] [ 5956.697103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.697103][ T254] netdev_get_by_index+0x5e/0x80 [ 5956.697103][ T254] fib6_nh_init+0x3d8/0x1580 [ 5956.697103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5956.697103][ T254] ip6_route_add+0x1c/0x140 [ 5956.697103][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5956.697103][ T254] addrconf_add_dev+0xe2/0x170 [ 5956.697103][ T254] inet6_addr_add+0x12f/0xa40 [ 5956.697103][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5956.697103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5956.697103][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.697103][ T254] netlink_unicast+0x449/0x710 [ 5956.697103][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.697103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.697103][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.697103][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.697103][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.697103][ T254] [ 5956.699309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.699309][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5956.699309][ T254] ipv6_find_idev+0x102/0x170 [ 5956.699309][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5956.699309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5956.699309][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.699309][ T254] netlink_unicast+0x449/0x710 [ 5956.699309][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.699309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.699309][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.699309][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.699309][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.699309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5956.699309][ T254] [ 5956.701049][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5956.701049][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5956.701049][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5956.701049][ T254] ipv6_find_idev+0x102/0x170 [ 5956.701049][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5956.701049][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5956.701049][ T254] netlink_rcv_skb+0x130/0x360 [ 5956.701049][ T254] netlink_unicast+0x449/0x710 [ 5956.701049][ T254] netlink_sendmsg+0x723/0xbe0 [ 5956.701049][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5956.701049][ T254] ___sys_sendmsg+0xee/0x170 [ 5956.701049][ T254] __sys_sendmsg+0xcd/0x170 [ 5956.701049][ T254] do_syscall_64+0xc6/0x1e0 [ 5956.701049][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5956.701049][ T254] [ 5966.951843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5966.952326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.952326][ T254] dst_init+0x84/0x4a0 [ 5966.952326][ T254] dst_alloc+0x97/0x150 [ 5966.952326][ T254] ip6_dst_alloc+0x23/0x90 [ 5966.952326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5966.952326][ T254] ip6_pol_route+0x56f/0x840 [ 5966.952326][ T254] fib6_rule_lookup+0x334/0x630 [ 5966.952326][ T254] ip6_route_output_flags+0x259/0x480 [ 5966.952326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5966.952326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5966.952326][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.952326][ T254] netlink_unicast+0x449/0x710 [ 5966.952326][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.952326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.952326][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.952326][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.952326][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.952326][ T254] [ 5966.954536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.954536][ T254] netdev_get_by_index+0x5e/0x80 [ 5966.954536][ T254] fib6_nh_init+0x3d8/0x1580 [ 5966.954536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5966.954536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5966.954536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5966.954536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5966.954536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5966.954536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5966.954536][ T254] addrconf_dad_begin+0x310/0x670 [ 5966.954536][ T254] addrconf_dad_work+0x10b/0xab0 [ 5966.954536][ T254] process_one_work+0x84d/0x18a0 [ 5966.954536][ T254] worker_thread+0x587/0xd30 [ 5966.954536][ T254] kthread+0x28a/0x350 [ 5966.954536][ T254] ret_from_fork+0x31/0x70 [ 5966.954536][ T254] ret_from_fork_asm+0x1a/0x30 [ 5966.954536][ T254] [ 5966.956712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.956712][ T254] netdev_get_by_index+0x5e/0x80 [ 5966.956712][ T254] fib6_nh_init+0x3d8/0x1580 [ 5966.956712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5966.956712][ T254] ip6_route_add+0x1c/0x140 [ 5966.956712][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5966.956712][ T254] inet6_addr_add+0x4f8/0xa40 [ 5966.956712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5966.956712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5966.956712][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.956712][ T254] netlink_unicast+0x449/0x710 [ 5966.956712][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.956712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.956712][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.956712][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.956712][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.956712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5966.956712][ T254] [ 5966.958971][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.958971][ T254] netdev_get_by_index+0x5e/0x80 [ 5966.958971][ T254] fib6_nh_init+0x3d8/0x1580 [ 5966.958971][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5966.958971][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5966.958971][ T254] ipv6_add_addr+0x411/0x2000 [ 5966.958971][ T254] inet6_addr_add+0x30e/0xa40 [ 5966.958971][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5966.958971][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5966.958971][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.958971][ T254] netlink_unicast+0x449/0x710 [ 5966.958971][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.958971][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.958971][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.958971][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.958971][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.958971][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5966.958971][ T254] [ 5966.961239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.961239][ T254] netdev_get_by_index+0x5e/0x80 [ 5966.961239][ T254] fib6_nh_init+0x3d8/0x1580 [ 5966.961239][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5966.961239][ T254] ip6_route_add+0x1c/0x140 [ 5966.961239][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5966.961239][ T254] addrconf_add_dev+0xe2/0x170 [ 5966.961239][ T254] inet6_addr_add+0x12f/0xa40 [ 5966.961239][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5966.961239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5966.961239][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.961239][ T254] netlink_unicast+0x449/0x710 [ 5966.961239][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.961239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.961239][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.961239][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.961239][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.961239][ T254] [ 5966.963453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.963453][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5966.963453][ T254] ipv6_find_idev+0x102/0x170 [ 5966.963453][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5966.963453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5966.963453][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.963453][ T254] netlink_unicast+0x449/0x710 [ 5966.963453][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.963453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.963453][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.963453][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.963453][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.963453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5966.963453][ T254] [ 5966.965189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5966.965189][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5966.965189][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5966.965189][ T254] ipv6_find_idev+0x102/0x170 [ 5966.965189][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5966.965189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5966.965189][ T254] netlink_rcv_skb+0x130/0x360 [ 5966.965189][ T254] netlink_unicast+0x449/0x710 [ 5966.965189][ T254] netlink_sendmsg+0x723/0xbe0 [ 5966.965189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5966.965189][ T254] ___sys_sendmsg+0xee/0x170 [ 5966.965189][ T254] __sys_sendmsg+0xcd/0x170 [ 5966.965189][ T254] do_syscall_64+0xc6/0x1e0 [ 5966.965189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5966.965189][ T254] [ 5977.143847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5977.144324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.144324][ T254] dst_init+0x84/0x4a0 [ 5977.144324][ T254] dst_alloc+0x97/0x150 [ 5977.144324][ T254] ip6_dst_alloc+0x23/0x90 [ 5977.144324][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5977.144324][ T254] ip6_pol_route+0x56f/0x840 [ 5977.144324][ T254] fib6_rule_lookup+0x334/0x630 [ 5977.144324][ T254] ip6_route_output_flags+0x259/0x480 [ 5977.144324][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5977.144324][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5977.144324][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.144324][ T254] netlink_unicast+0x449/0x710 [ 5977.144324][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.144324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.144324][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.144324][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.144324][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.144324][ T254] [ 5977.146547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.146547][ T254] netdev_get_by_index+0x5e/0x80 [ 5977.146547][ T254] fib6_nh_init+0x3d8/0x1580 [ 5977.146547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5977.146547][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5977.146547][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5977.146547][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5977.146547][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5977.146547][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5977.146547][ T254] addrconf_dad_begin+0x310/0x670 [ 5977.146547][ T254] addrconf_dad_work+0x10b/0xab0 [ 5977.146547][ T254] process_one_work+0x84d/0x18a0 [ 5977.146547][ T254] worker_thread+0x587/0xd30 [ 5977.146547][ T254] kthread+0x28a/0x350 [ 5977.146547][ T254] ret_from_fork+0x31/0x70 [ 5977.146547][ T254] ret_from_fork_asm+0x1a/0x30 [ 5977.146547][ T254] [ 5977.148713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.148713][ T254] netdev_get_by_index+0x5e/0x80 [ 5977.148713][ T254] fib6_nh_init+0x3d8/0x1580 [ 5977.148713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5977.148713][ T254] ip6_route_add+0x1c/0x140 [ 5977.148713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5977.148713][ T254] inet6_addr_add+0x4f8/0xa40 [ 5977.148713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5977.148713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5977.148713][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.148713][ T254] netlink_unicast+0x449/0x710 [ 5977.148713][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.148713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.148713][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.148713][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.148713][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.148713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5977.148713][ T254] [ 5977.150993][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.150993][ T254] netdev_get_by_index+0x5e/0x80 [ 5977.150993][ T254] fib6_nh_init+0x3d8/0x1580 [ 5977.150993][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5977.150993][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5977.150993][ T254] ipv6_add_addr+0x411/0x2000 [ 5977.150993][ T254] inet6_addr_add+0x30e/0xa40 [ 5977.150993][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5977.150993][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5977.150993][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.150993][ T254] netlink_unicast+0x449/0x710 [ 5977.150993][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.150993][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.150993][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.150993][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.150993][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.150993][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5977.150993][ T254] [ 5977.153251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.153251][ T254] netdev_get_by_index+0x5e/0x80 [ 5977.153251][ T254] fib6_nh_init+0x3d8/0x1580 [ 5977.153251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5977.153251][ T254] ip6_route_add+0x1c/0x140 [ 5977.153251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5977.153251][ T254] addrconf_add_dev+0xe2/0x170 [ 5977.153251][ T254] inet6_addr_add+0x12f/0xa40 [ 5977.153251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5977.153251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5977.153251][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.153251][ T254] netlink_unicast+0x449/0x710 [ 5977.153251][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.153251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.153251][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.153251][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.153251][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.153251][ T254] [ 5977.155469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.155469][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5977.155469][ T254] ipv6_find_idev+0x102/0x170 [ 5977.155469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5977.155469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5977.155469][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.155469][ T254] netlink_unicast+0x449/0x710 [ 5977.155469][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.155469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.155469][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.155469][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.155469][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.155469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5977.155469][ T254] [ 5977.157208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5977.157208][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5977.157208][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5977.157208][ T254] ipv6_find_idev+0x102/0x170 [ 5977.157208][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5977.157208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5977.157208][ T254] netlink_rcv_skb+0x130/0x360 [ 5977.157208][ T254] netlink_unicast+0x449/0x710 [ 5977.157208][ T254] netlink_sendmsg+0x723/0xbe0 [ 5977.157208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5977.157208][ T254] ___sys_sendmsg+0xee/0x170 [ 5977.157208][ T254] __sys_sendmsg+0xcd/0x170 [ 5977.157208][ T254] do_syscall_64+0xc6/0x1e0 [ 5977.157208][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5977.157208][ T254] [ 5987.191887][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5987.192354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.192354][ T254] dst_init+0x84/0x4a0 [ 5987.192354][ T254] dst_alloc+0x97/0x150 [ 5987.192354][ T254] ip6_dst_alloc+0x23/0x90 [ 5987.192354][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5987.192354][ T254] ip6_pol_route+0x56f/0x840 [ 5987.192354][ T254] fib6_rule_lookup+0x334/0x630 [ 5987.192354][ T254] ip6_route_output_flags+0x259/0x480 [ 5987.192354][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5987.192354][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5987.192354][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.192354][ T254] netlink_unicast+0x449/0x710 [ 5987.192354][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.192354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.192354][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.192354][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.192354][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.192354][ T254] [ 5987.194541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.194541][ T254] netdev_get_by_index+0x5e/0x80 [ 5987.194541][ T254] fib6_nh_init+0x3d8/0x1580 [ 5987.194541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5987.194541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5987.194541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5987.194541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5987.194541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5987.194541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5987.194541][ T254] addrconf_dad_begin+0x310/0x670 [ 5987.194541][ T254] addrconf_dad_work+0x10b/0xab0 [ 5987.194541][ T254] process_one_work+0x84d/0x18a0 [ 5987.194541][ T254] worker_thread+0x587/0xd30 [ 5987.194541][ T254] kthread+0x28a/0x350 [ 5987.194541][ T254] ret_from_fork+0x31/0x70 [ 5987.194541][ T254] ret_from_fork_asm+0x1a/0x30 [ 5987.194541][ T254] [ 5987.196768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.196768][ T254] netdev_get_by_index+0x5e/0x80 [ 5987.196768][ T254] fib6_nh_init+0x3d8/0x1580 [ 5987.196768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5987.196768][ T254] ip6_route_add+0x1c/0x140 [ 5987.196768][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5987.196768][ T254] inet6_addr_add+0x4f8/0xa40 [ 5987.196768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5987.196768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5987.196768][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.196768][ T254] netlink_unicast+0x449/0x710 [ 5987.196768][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.196768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.196768][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.196768][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.196768][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.196768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5987.196768][ T254] [ 5987.199034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.199034][ T254] netdev_get_by_index+0x5e/0x80 [ 5987.199034][ T254] fib6_nh_init+0x3d8/0x1580 [ 5987.199034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5987.199034][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5987.199034][ T254] ipv6_add_addr+0x411/0x2000 [ 5987.199034][ T254] inet6_addr_add+0x30e/0xa40 [ 5987.199034][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5987.199034][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5987.199034][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.199034][ T254] netlink_unicast+0x449/0x710 [ 5987.199034][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.199034][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.199034][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.199034][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.199034][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.199034][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5987.199034][ T254] [ 5987.201288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.201288][ T254] netdev_get_by_index+0x5e/0x80 [ 5987.201288][ T254] fib6_nh_init+0x3d8/0x1580 [ 5987.201288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5987.201288][ T254] ip6_route_add+0x1c/0x140 [ 5987.201288][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5987.201288][ T254] addrconf_add_dev+0xe2/0x170 [ 5987.201288][ T254] inet6_addr_add+0x12f/0xa40 [ 5987.201288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5987.201288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5987.201288][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.201288][ T254] netlink_unicast+0x449/0x710 [ 5987.201288][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.201288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.201288][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.201288][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.201288][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.201288][ T254] [ 5987.203476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.203476][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5987.203476][ T254] ipv6_find_idev+0x102/0x170 [ 5987.203476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5987.203476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5987.203476][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.203476][ T254] netlink_unicast+0x449/0x710 [ 5987.203476][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.203476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.203476][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.203476][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.203476][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.203476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5987.203476][ T254] [ 5987.205192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5987.205192][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5987.205192][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5987.205192][ T254] ipv6_find_idev+0x102/0x170 [ 5987.205192][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5987.205192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5987.205192][ T254] netlink_rcv_skb+0x130/0x360 [ 5987.205192][ T254] netlink_unicast+0x449/0x710 [ 5987.205192][ T254] netlink_sendmsg+0x723/0xbe0 [ 5987.205192][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5987.205192][ T254] ___sys_sendmsg+0xee/0x170 [ 5987.205192][ T254] __sys_sendmsg+0xcd/0x170 [ 5987.205192][ T254] do_syscall_64+0xc6/0x1e0 [ 5987.205192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5987.205192][ T254] [ 5997.295871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 5997.296346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.296346][ T254] dst_init+0x84/0x4a0 [ 5997.296346][ T254] dst_alloc+0x97/0x150 [ 5997.296346][ T254] ip6_dst_alloc+0x23/0x90 [ 5997.296346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 5997.296346][ T254] ip6_pol_route+0x56f/0x840 [ 5997.296346][ T254] fib6_rule_lookup+0x334/0x630 [ 5997.296346][ T254] ip6_route_output_flags+0x259/0x480 [ 5997.296346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 5997.296346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 5997.296346][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.296346][ T254] netlink_unicast+0x449/0x710 [ 5997.296346][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.296346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.296346][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.296346][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.296346][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.296346][ T254] [ 5997.298565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.298565][ T254] netdev_get_by_index+0x5e/0x80 [ 5997.298565][ T254] fib6_nh_init+0x3d8/0x1580 [ 5997.298565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5997.298565][ T254] addrconf_f6i_alloc+0x265/0x560 [ 5997.298565][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 5997.298565][ T254] addrconf_join_anycast+0x1c0/0x220 [ 5997.298565][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 5997.298565][ T254] addrconf_dad_completed+0x12b/0xe20 [ 5997.298565][ T254] addrconf_dad_begin+0x310/0x670 [ 5997.298565][ T254] addrconf_dad_work+0x10b/0xab0 [ 5997.298565][ T254] process_one_work+0x84d/0x18a0 [ 5997.298565][ T254] worker_thread+0x587/0xd30 [ 5997.298565][ T254] kthread+0x28a/0x350 [ 5997.298565][ T254] ret_from_fork+0x31/0x70 [ 5997.298565][ T254] ret_from_fork_asm+0x1a/0x30 [ 5997.298565][ T254] [ 5997.300740][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.300740][ T254] netdev_get_by_index+0x5e/0x80 [ 5997.300740][ T254] fib6_nh_init+0x3d8/0x1580 [ 5997.300740][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5997.300740][ T254] ip6_route_add+0x1c/0x140 [ 5997.300740][ T254] addrconf_prefix_route+0x2a6/0x430 [ 5997.300740][ T254] inet6_addr_add+0x4f8/0xa40 [ 5997.300740][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5997.300740][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5997.300740][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.300740][ T254] netlink_unicast+0x449/0x710 [ 5997.300740][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.300740][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.300740][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.300740][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.300740][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.300740][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5997.300740][ T254] [ 5997.302998][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.302998][ T254] netdev_get_by_index+0x5e/0x80 [ 5997.302998][ T254] fib6_nh_init+0x3d8/0x1580 [ 5997.302998][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5997.302998][ T254] addrconf_f6i_alloc+0x315/0x560 [ 5997.302998][ T254] ipv6_add_addr+0x411/0x2000 [ 5997.302998][ T254] inet6_addr_add+0x30e/0xa40 [ 5997.302998][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5997.302998][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5997.302998][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.302998][ T254] netlink_unicast+0x449/0x710 [ 5997.302998][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.302998][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.302998][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.302998][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.302998][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.302998][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5997.302998][ T254] [ 5997.305253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.305253][ T254] netdev_get_by_index+0x5e/0x80 [ 5997.305253][ T254] fib6_nh_init+0x3d8/0x1580 [ 5997.305253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 5997.305253][ T254] ip6_route_add+0x1c/0x140 [ 5997.305253][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 5997.305253][ T254] addrconf_add_dev+0xe2/0x170 [ 5997.305253][ T254] inet6_addr_add+0x12f/0xa40 [ 5997.305253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 5997.305253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5997.305253][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.305253][ T254] netlink_unicast+0x449/0x710 [ 5997.305253][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.305253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.305253][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.305253][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.305253][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.305253][ T254] [ 5997.307470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.307470][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 5997.307470][ T254] ipv6_find_idev+0x102/0x170 [ 5997.307470][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5997.307470][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5997.307470][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.307470][ T254] netlink_unicast+0x449/0x710 [ 5997.307470][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.307470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.307470][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.307470][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.307470][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.307470][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5997.307470][ T254] [ 5997.309227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 5997.309227][ T254] neigh_parms_alloc+0x1e5/0x510 [ 5997.309227][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 5997.309227][ T254] ipv6_find_idev+0x102/0x170 [ 5997.309227][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 5997.309227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 5997.309227][ T254] netlink_rcv_skb+0x130/0x360 [ 5997.309227][ T254] netlink_unicast+0x449/0x710 [ 5997.309227][ T254] netlink_sendmsg+0x723/0xbe0 [ 5997.309227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 5997.309227][ T254] ___sys_sendmsg+0xee/0x170 [ 5997.309227][ T254] __sys_sendmsg+0xcd/0x170 [ 5997.309227][ T254] do_syscall_64+0xc6/0x1e0 [ 5997.309227][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 5997.309227][ T254] [ 6007.559840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6007.560259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.560259][ T254] dst_init+0x84/0x4a0 [ 6007.560259][ T254] dst_alloc+0x97/0x150 [ 6007.560259][ T254] ip6_dst_alloc+0x23/0x90 [ 6007.560259][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6007.560259][ T254] ip6_pol_route+0x56f/0x840 [ 6007.560259][ T254] fib6_rule_lookup+0x334/0x630 [ 6007.560259][ T254] ip6_route_output_flags+0x259/0x480 [ 6007.560259][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6007.560259][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6007.560259][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.560259][ T254] netlink_unicast+0x449/0x710 [ 6007.560259][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.560259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.560259][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.560259][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.560259][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.560259][ T254] [ 6007.562483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.562483][ T254] netdev_get_by_index+0x5e/0x80 [ 6007.562483][ T254] fib6_nh_init+0x3d8/0x1580 [ 6007.562483][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6007.562483][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6007.562483][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6007.562483][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6007.562483][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6007.562483][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6007.562483][ T254] addrconf_dad_begin+0x310/0x670 [ 6007.562483][ T254] addrconf_dad_work+0x10b/0xab0 [ 6007.562483][ T254] process_one_work+0x84d/0x18a0 [ 6007.562483][ T254] worker_thread+0x587/0xd30 [ 6007.562483][ T254] kthread+0x28a/0x350 [ 6007.562483][ T254] ret_from_fork+0x31/0x70 [ 6007.562483][ T254] ret_from_fork_asm+0x1a/0x30 [ 6007.562483][ T254] [ 6007.564647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.564647][ T254] netdev_get_by_index+0x5e/0x80 [ 6007.564647][ T254] fib6_nh_init+0x3d8/0x1580 [ 6007.564647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6007.564647][ T254] ip6_route_add+0x1c/0x140 [ 6007.564647][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6007.564647][ T254] inet6_addr_add+0x4f8/0xa40 [ 6007.564647][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6007.564647][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6007.564647][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.564647][ T254] netlink_unicast+0x449/0x710 [ 6007.564647][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.564647][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.564647][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.564647][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.564647][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.564647][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6007.564647][ T254] [ 6007.566904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.566904][ T254] netdev_get_by_index+0x5e/0x80 [ 6007.566904][ T254] fib6_nh_init+0x3d8/0x1580 [ 6007.566904][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6007.566904][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6007.566904][ T254] ipv6_add_addr+0x411/0x2000 [ 6007.566904][ T254] inet6_addr_add+0x30e/0xa40 [ 6007.566904][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6007.566904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6007.566904][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.566904][ T254] netlink_unicast+0x449/0x710 [ 6007.566904][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.566904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.566904][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.566904][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.566904][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.566904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6007.566904][ T254] [ 6007.569159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.569159][ T254] netdev_get_by_index+0x5e/0x80 [ 6007.569159][ T254] fib6_nh_init+0x3d8/0x1580 [ 6007.569159][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6007.569159][ T254] ip6_route_add+0x1c/0x140 [ 6007.569159][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6007.569159][ T254] addrconf_add_dev+0xe2/0x170 [ 6007.569159][ T254] inet6_addr_add+0x12f/0xa40 [ 6007.569159][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6007.569159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6007.569159][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.569159][ T254] netlink_unicast+0x449/0x710 [ 6007.569159][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.569159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.569159][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.569159][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.569159][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.569159][ T254] [ 6007.571388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.571388][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6007.571388][ T254] ipv6_find_idev+0x102/0x170 [ 6007.571388][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6007.571388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6007.571388][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.571388][ T254] netlink_unicast+0x449/0x710 [ 6007.571388][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.571388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.571388][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.571388][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.571388][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.571388][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6007.571388][ T254] [ 6007.573125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6007.573125][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6007.573125][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6007.573125][ T254] ipv6_find_idev+0x102/0x170 [ 6007.573125][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6007.573125][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6007.573125][ T254] netlink_rcv_skb+0x130/0x360 [ 6007.573125][ T254] netlink_unicast+0x449/0x710 [ 6007.573125][ T254] netlink_sendmsg+0x723/0xbe0 [ 6007.573125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6007.573125][ T254] ___sys_sendmsg+0xee/0x170 [ 6007.573125][ T254] __sys_sendmsg+0xcd/0x170 [ 6007.573125][ T254] do_syscall_64+0xc6/0x1e0 [ 6007.573125][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6007.573125][ T254] [ 6017.695843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6017.696333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.696333][ T254] dst_init+0x84/0x4a0 [ 6017.696333][ T254] dst_alloc+0x97/0x150 [ 6017.696333][ T254] ip6_dst_alloc+0x23/0x90 [ 6017.696333][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6017.696333][ T254] ip6_pol_route+0x56f/0x840 [ 6017.696333][ T254] fib6_rule_lookup+0x334/0x630 [ 6017.696333][ T254] ip6_route_output_flags+0x259/0x480 [ 6017.696333][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6017.696333][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6017.696333][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.696333][ T254] netlink_unicast+0x449/0x710 [ 6017.696333][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.696333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.696333][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.696333][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.696333][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.696333][ T254] [ 6017.698548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.698548][ T254] netdev_get_by_index+0x5e/0x80 [ 6017.698548][ T254] fib6_nh_init+0x3d8/0x1580 [ 6017.698548][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6017.698548][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6017.698548][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6017.698548][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6017.698548][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6017.698548][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6017.698548][ T254] addrconf_dad_begin+0x310/0x670 [ 6017.698548][ T254] addrconf_dad_work+0x10b/0xab0 [ 6017.698548][ T254] process_one_work+0x84d/0x18a0 [ 6017.698548][ T254] worker_thread+0x587/0xd30 [ 6017.698548][ T254] kthread+0x28a/0x350 [ 6017.698548][ T254] ret_from_fork+0x31/0x70 [ 6017.698548][ T254] ret_from_fork_asm+0x1a/0x30 [ 6017.698548][ T254] [ 6017.700731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.700731][ T254] netdev_get_by_index+0x5e/0x80 [ 6017.700731][ T254] fib6_nh_init+0x3d8/0x1580 [ 6017.700731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6017.700731][ T254] ip6_route_add+0x1c/0x140 [ 6017.700731][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6017.700731][ T254] inet6_addr_add+0x4f8/0xa40 [ 6017.700731][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6017.700731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6017.700731][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.700731][ T254] netlink_unicast+0x449/0x710 [ 6017.700731][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.700731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.700731][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.700731][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.700731][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.700731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6017.700731][ T254] [ 6017.703006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.703006][ T254] netdev_get_by_index+0x5e/0x80 [ 6017.703006][ T254] fib6_nh_init+0x3d8/0x1580 [ 6017.703006][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6017.703006][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6017.703006][ T254] ipv6_add_addr+0x411/0x2000 [ 6017.703006][ T254] inet6_addr_add+0x30e/0xa40 [ 6017.703006][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6017.703006][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6017.703006][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.703006][ T254] netlink_unicast+0x449/0x710 [ 6017.703006][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.703006][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.703006][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.703006][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.703006][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.703006][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6017.703006][ T254] [ 6017.705269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.705269][ T254] netdev_get_by_index+0x5e/0x80 [ 6017.705269][ T254] fib6_nh_init+0x3d8/0x1580 [ 6017.705269][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6017.705269][ T254] ip6_route_add+0x1c/0x140 [ 6017.705269][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6017.705269][ T254] addrconf_add_dev+0xe2/0x170 [ 6017.705269][ T254] inet6_addr_add+0x12f/0xa40 [ 6017.705269][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6017.705269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6017.705269][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.705269][ T254] netlink_unicast+0x449/0x710 [ 6017.705269][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.705269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.705269][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.705269][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.705269][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.705269][ T254] [ 6017.707502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.707502][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6017.707502][ T254] ipv6_find_idev+0x102/0x170 [ 6017.707502][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6017.707502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6017.707502][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.707502][ T254] netlink_unicast+0x449/0x710 [ 6017.707502][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.707502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.707502][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.707502][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.707502][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.707502][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6017.707502][ T254] [ 6017.709248][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6017.709248][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6017.709248][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6017.709248][ T254] ipv6_find_idev+0x102/0x170 [ 6017.709248][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6017.709248][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6017.709248][ T254] netlink_rcv_skb+0x130/0x360 [ 6017.709248][ T254] netlink_unicast+0x449/0x710 [ 6017.709248][ T254] netlink_sendmsg+0x723/0xbe0 [ 6017.709248][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6017.709248][ T254] ___sys_sendmsg+0xee/0x170 [ 6017.709248][ T254] __sys_sendmsg+0xcd/0x170 [ 6017.709248][ T254] do_syscall_64+0xc6/0x1e0 [ 6017.709248][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6017.709248][ T254] [ 6027.951862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6027.952334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.952334][ T254] dst_init+0x84/0x4a0 [ 6027.952334][ T254] dst_alloc+0x97/0x150 [ 6027.952334][ T254] ip6_dst_alloc+0x23/0x90 [ 6027.952334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6027.952334][ T254] ip6_pol_route+0x56f/0x840 [ 6027.952334][ T254] fib6_rule_lookup+0x334/0x630 [ 6027.952334][ T254] ip6_route_output_flags+0x259/0x480 [ 6027.952334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6027.952334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6027.952334][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.952334][ T254] netlink_unicast+0x449/0x710 [ 6027.952334][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.952334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.952334][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.952334][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.952334][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.952334][ T254] [ 6027.954517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.954517][ T254] netdev_get_by_index+0x5e/0x80 [ 6027.954517][ T254] fib6_nh_init+0x3d8/0x1580 [ 6027.954517][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6027.954517][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6027.954517][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6027.954517][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6027.954517][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6027.954517][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6027.954517][ T254] addrconf_dad_begin+0x310/0x670 [ 6027.954517][ T254] addrconf_dad_work+0x10b/0xab0 [ 6027.954517][ T254] process_one_work+0x84d/0x18a0 [ 6027.954517][ T254] worker_thread+0x587/0xd30 [ 6027.954517][ T254] kthread+0x28a/0x350 [ 6027.954517][ T254] ret_from_fork+0x31/0x70 [ 6027.954517][ T254] ret_from_fork_asm+0x1a/0x30 [ 6027.954517][ T254] [ 6027.957177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.957177][ T254] netdev_get_by_index+0x5e/0x80 [ 6027.957177][ T254] fib6_nh_init+0x3d8/0x1580 [ 6027.957177][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6027.957177][ T254] ip6_route_add+0x1c/0x140 [ 6027.957177][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6027.957177][ T254] inet6_addr_add+0x4f8/0xa40 [ 6027.957177][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6027.957177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6027.957177][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.957177][ T254] netlink_unicast+0x449/0x710 [ 6027.957177][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.957177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.957177][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.957177][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.957177][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.957177][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6027.957177][ T254] [ 6027.959417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.959417][ T254] netdev_get_by_index+0x5e/0x80 [ 6027.959417][ T254] fib6_nh_init+0x3d8/0x1580 [ 6027.959417][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6027.959417][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6027.959417][ T254] ipv6_add_addr+0x411/0x2000 [ 6027.959417][ T254] inet6_addr_add+0x30e/0xa40 [ 6027.959417][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6027.959417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6027.959417][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.959417][ T254] netlink_unicast+0x449/0x710 [ 6027.959417][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.959417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.959417][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.959417][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.959417][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.959417][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6027.959417][ T254] [ 6027.961653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.961653][ T254] netdev_get_by_index+0x5e/0x80 [ 6027.961653][ T254] fib6_nh_init+0x3d8/0x1580 [ 6027.961653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6027.961653][ T254] ip6_route_add+0x1c/0x140 [ 6027.961653][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6027.961653][ T254] addrconf_add_dev+0xe2/0x170 [ 6027.961653][ T254] inet6_addr_add+0x12f/0xa40 [ 6027.961653][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6027.961653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6027.961653][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.961653][ T254] netlink_unicast+0x449/0x710 [ 6027.961653][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.961653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.961653][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.961653][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.961653][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.961653][ T254] [ 6027.963848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.963848][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6027.963848][ T254] ipv6_find_idev+0x102/0x170 [ 6027.963848][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6027.963848][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6027.963848][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.963848][ T254] netlink_unicast+0x449/0x710 [ 6027.963848][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.963848][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.963848][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.963848][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.963848][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.963848][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6027.963848][ T254] [ 6027.965571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6027.965571][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6027.965571][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6027.965571][ T254] ipv6_find_idev+0x102/0x170 [ 6027.965571][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6027.965571][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6027.965571][ T254] netlink_rcv_skb+0x130/0x360 [ 6027.965571][ T254] netlink_unicast+0x449/0x710 [ 6027.965571][ T254] netlink_sendmsg+0x723/0xbe0 [ 6027.965571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6027.965571][ T254] ___sys_sendmsg+0xee/0x170 [ 6027.965571][ T254] __sys_sendmsg+0xcd/0x170 [ 6027.965571][ T254] do_syscall_64+0xc6/0x1e0 [ 6027.965571][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6027.965571][ T254] [ 6038.207883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6038.208346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.208346][ T254] dst_init+0x84/0x4a0 [ 6038.208346][ T254] dst_alloc+0x97/0x150 [ 6038.208346][ T254] ip6_dst_alloc+0x23/0x90 [ 6038.208346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6038.208346][ T254] ip6_pol_route+0x56f/0x840 [ 6038.208346][ T254] fib6_rule_lookup+0x334/0x630 [ 6038.208346][ T254] ip6_route_output_flags+0x259/0x480 [ 6038.208346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6038.208346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6038.208346][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.208346][ T254] netlink_unicast+0x449/0x710 [ 6038.208346][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.208346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.208346][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.208346][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.208346][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.208346][ T254] [ 6038.210546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.210546][ T254] netdev_get_by_index+0x5e/0x80 [ 6038.210546][ T254] fib6_nh_init+0x3d8/0x1580 [ 6038.210546][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6038.210546][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6038.210546][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6038.210546][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6038.210546][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6038.210546][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6038.210546][ T254] addrconf_dad_begin+0x310/0x670 [ 6038.210546][ T254] addrconf_dad_work+0x10b/0xab0 [ 6038.210546][ T254] process_one_work+0x84d/0x18a0 [ 6038.210546][ T254] worker_thread+0x587/0xd30 [ 6038.210546][ T254] kthread+0x28a/0x350 [ 6038.210546][ T254] ret_from_fork+0x31/0x70 [ 6038.210546][ T254] ret_from_fork_asm+0x1a/0x30 [ 6038.210546][ T254] [ 6038.212691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.212691][ T254] netdev_get_by_index+0x5e/0x80 [ 6038.212691][ T254] fib6_nh_init+0x3d8/0x1580 [ 6038.212691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6038.212691][ T254] ip6_route_add+0x1c/0x140 [ 6038.212691][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6038.212691][ T254] inet6_addr_add+0x4f8/0xa40 [ 6038.212691][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6038.212691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6038.212691][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.212691][ T254] netlink_unicast+0x449/0x710 [ 6038.212691][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.212691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.212691][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.212691][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.212691][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.212691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6038.212691][ T254] [ 6038.214927][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.214927][ T254] netdev_get_by_index+0x5e/0x80 [ 6038.214927][ T254] fib6_nh_init+0x3d8/0x1580 [ 6038.214927][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6038.214927][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6038.214927][ T254] ipv6_add_addr+0x411/0x2000 [ 6038.214927][ T254] inet6_addr_add+0x30e/0xa40 [ 6038.214927][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6038.214927][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6038.214927][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.214927][ T254] netlink_unicast+0x449/0x710 [ 6038.214927][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.214927][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.214927][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.214927][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.214927][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.214927][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6038.214927][ T254] [ 6038.217176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.217176][ T254] netdev_get_by_index+0x5e/0x80 [ 6038.217176][ T254] fib6_nh_init+0x3d8/0x1580 [ 6038.217176][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6038.217176][ T254] ip6_route_add+0x1c/0x140 [ 6038.217176][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6038.217176][ T254] addrconf_add_dev+0xe2/0x170 [ 6038.217176][ T254] inet6_addr_add+0x12f/0xa40 [ 6038.217176][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6038.217176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6038.217176][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.217176][ T254] netlink_unicast+0x449/0x710 [ 6038.217176][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.217176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.217176][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.217176][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.217176][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.217176][ T254] [ 6038.219762][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.219762][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6038.219762][ T254] ipv6_find_idev+0x102/0x170 [ 6038.219762][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6038.219762][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6038.219762][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.219762][ T254] netlink_unicast+0x449/0x710 [ 6038.219762][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.219762][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.219762][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.219762][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.219762][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.219762][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6038.219762][ T254] [ 6038.221480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6038.221480][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6038.221480][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6038.221480][ T254] ipv6_find_idev+0x102/0x170 [ 6038.221480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6038.221480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6038.221480][ T254] netlink_rcv_skb+0x130/0x360 [ 6038.221480][ T254] netlink_unicast+0x449/0x710 [ 6038.221480][ T254] netlink_sendmsg+0x723/0xbe0 [ 6038.221480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6038.221480][ T254] ___sys_sendmsg+0xee/0x170 [ 6038.221480][ T254] __sys_sendmsg+0xcd/0x170 [ 6038.221480][ T254] do_syscall_64+0xc6/0x1e0 [ 6038.221480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6038.221480][ T254] [ 6048.271851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6048.272324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.272324][ T254] dst_init+0x84/0x4a0 [ 6048.272324][ T254] dst_alloc+0x97/0x150 [ 6048.272324][ T254] ip6_dst_alloc+0x23/0x90 [ 6048.272324][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6048.272324][ T254] ip6_pol_route+0x56f/0x840 [ 6048.272324][ T254] fib6_rule_lookup+0x334/0x630 [ 6048.272324][ T254] ip6_route_output_flags+0x259/0x480 [ 6048.272324][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6048.272324][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6048.272324][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.272324][ T254] netlink_unicast+0x449/0x710 [ 6048.272324][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.272324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.272324][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.272324][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.272324][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.272324][ T254] [ 6048.274519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.274519][ T254] netdev_get_by_index+0x5e/0x80 [ 6048.274519][ T254] fib6_nh_init+0x3d8/0x1580 [ 6048.274519][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6048.274519][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6048.274519][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6048.274519][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6048.274519][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6048.274519][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6048.274519][ T254] addrconf_dad_begin+0x310/0x670 [ 6048.274519][ T254] addrconf_dad_work+0x10b/0xab0 [ 6048.274519][ T254] process_one_work+0x84d/0x18a0 [ 6048.274519][ T254] worker_thread+0x587/0xd30 [ 6048.274519][ T254] kthread+0x28a/0x350 [ 6048.274519][ T254] ret_from_fork+0x31/0x70 [ 6048.274519][ T254] ret_from_fork_asm+0x1a/0x30 [ 6048.274519][ T254] [ 6048.276656][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.276656][ T254] netdev_get_by_index+0x5e/0x80 [ 6048.276656][ T254] fib6_nh_init+0x3d8/0x1580 [ 6048.276656][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6048.276656][ T254] ip6_route_add+0x1c/0x140 [ 6048.276656][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6048.276656][ T254] inet6_addr_add+0x4f8/0xa40 [ 6048.276656][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6048.276656][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6048.276656][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.276656][ T254] netlink_unicast+0x449/0x710 [ 6048.276656][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.276656][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.276656][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.276656][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.276656][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.276656][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6048.276656][ T254] [ 6048.278899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.278899][ T254] netdev_get_by_index+0x5e/0x80 [ 6048.278899][ T254] fib6_nh_init+0x3d8/0x1580 [ 6048.278899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6048.278899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6048.278899][ T254] ipv6_add_addr+0x411/0x2000 [ 6048.278899][ T254] inet6_addr_add+0x30e/0xa40 [ 6048.278899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6048.278899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6048.278899][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.278899][ T254] netlink_unicast+0x449/0x710 [ 6048.278899][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.278899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.278899][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.278899][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.278899][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.278899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6048.278899][ T254] [ 6048.281145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.281145][ T254] netdev_get_by_index+0x5e/0x80 [ 6048.281145][ T254] fib6_nh_init+0x3d8/0x1580 [ 6048.281145][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6048.281145][ T254] ip6_route_add+0x1c/0x140 [ 6048.281145][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6048.281145][ T254] addrconf_add_dev+0xe2/0x170 [ 6048.281145][ T254] inet6_addr_add+0x12f/0xa40 [ 6048.281145][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6048.281145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6048.281145][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.281145][ T254] netlink_unicast+0x449/0x710 [ 6048.281145][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.281145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.281145][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.281145][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.281145][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.281145][ T254] [ 6048.283338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.283338][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6048.283338][ T254] ipv6_find_idev+0x102/0x170 [ 6048.283338][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6048.283338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6048.283338][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.283338][ T254] netlink_unicast+0x449/0x710 [ 6048.283338][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.283338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.283338][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.283338][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.283338][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.283338][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6048.283338][ T254] [ 6048.285050][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6048.285050][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6048.285050][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6048.285050][ T254] ipv6_find_idev+0x102/0x170 [ 6048.285050][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6048.285050][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6048.285050][ T254] netlink_rcv_skb+0x130/0x360 [ 6048.285050][ T254] netlink_unicast+0x449/0x710 [ 6048.285050][ T254] netlink_sendmsg+0x723/0xbe0 [ 6048.285050][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6048.285050][ T254] ___sys_sendmsg+0xee/0x170 [ 6048.285050][ T254] __sys_sendmsg+0xcd/0x170 [ 6048.285050][ T254] do_syscall_64+0xc6/0x1e0 [ 6048.285050][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6048.285050][ T254] [ 6058.527867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6058.528357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.528357][ T254] dst_init+0x84/0x4a0 [ 6058.528357][ T254] dst_alloc+0x97/0x150 [ 6058.528357][ T254] ip6_dst_alloc+0x23/0x90 [ 6058.528357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6058.528357][ T254] ip6_pol_route+0x56f/0x840 [ 6058.528357][ T254] fib6_rule_lookup+0x334/0x630 [ 6058.528357][ T254] ip6_route_output_flags+0x259/0x480 [ 6058.528357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6058.528357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6058.528357][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.528357][ T254] netlink_unicast+0x449/0x710 [ 6058.528357][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.528357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.528357][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.528357][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.528357][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.528357][ T254] [ 6058.530577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.530577][ T254] netdev_get_by_index+0x5e/0x80 [ 6058.530577][ T254] fib6_nh_init+0x3d8/0x1580 [ 6058.530577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6058.530577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6058.530577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6058.530577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6058.530577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6058.530577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6058.530577][ T254] addrconf_dad_begin+0x310/0x670 [ 6058.530577][ T254] addrconf_dad_work+0x10b/0xab0 [ 6058.530577][ T254] process_one_work+0x84d/0x18a0 [ 6058.530577][ T254] worker_thread+0x587/0xd30 [ 6058.530577][ T254] kthread+0x28a/0x350 [ 6058.530577][ T254] ret_from_fork+0x31/0x70 [ 6058.530577][ T254] ret_from_fork_asm+0x1a/0x30 [ 6058.530577][ T254] [ 6058.532742][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.532742][ T254] netdev_get_by_index+0x5e/0x80 [ 6058.532742][ T254] fib6_nh_init+0x3d8/0x1580 [ 6058.532742][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6058.532742][ T254] ip6_route_add+0x1c/0x140 [ 6058.532742][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6058.532742][ T254] inet6_addr_add+0x4f8/0xa40 [ 6058.532742][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6058.532742][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6058.532742][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.532742][ T254] netlink_unicast+0x449/0x710 [ 6058.532742][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.532742][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.532742][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.532742][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.532742][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.532742][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6058.532742][ T254] [ 6058.534999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.534999][ T254] netdev_get_by_index+0x5e/0x80 [ 6058.534999][ T254] fib6_nh_init+0x3d8/0x1580 [ 6058.534999][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6058.534999][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6058.534999][ T254] ipv6_add_addr+0x411/0x2000 [ 6058.534999][ T254] inet6_addr_add+0x30e/0xa40 [ 6058.534999][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6058.534999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6058.534999][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.534999][ T254] netlink_unicast+0x449/0x710 [ 6058.534999][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.534999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.534999][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.534999][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.534999][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.534999][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6058.534999][ T254] [ 6058.537280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.537280][ T254] netdev_get_by_index+0x5e/0x80 [ 6058.537280][ T254] fib6_nh_init+0x3d8/0x1580 [ 6058.537280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6058.537280][ T254] ip6_route_add+0x1c/0x140 [ 6058.537280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6058.537280][ T254] addrconf_add_dev+0xe2/0x170 [ 6058.537280][ T254] inet6_addr_add+0x12f/0xa40 [ 6058.537280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6058.537280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6058.537280][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.537280][ T254] netlink_unicast+0x449/0x710 [ 6058.537280][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.537280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.537280][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.537280][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.537280][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.537280][ T254] [ 6058.539508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.539508][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6058.539508][ T254] ipv6_find_idev+0x102/0x170 [ 6058.539508][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6058.539508][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6058.539508][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.539508][ T254] netlink_unicast+0x449/0x710 [ 6058.539508][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.539508][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.539508][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.539508][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.539508][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.539508][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6058.539508][ T254] [ 6058.541250][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6058.541250][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6058.541250][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6058.541250][ T254] ipv6_find_idev+0x102/0x170 [ 6058.541250][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6058.541250][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6058.541250][ T254] netlink_rcv_skb+0x130/0x360 [ 6058.541250][ T254] netlink_unicast+0x449/0x710 [ 6058.541250][ T254] netlink_sendmsg+0x723/0xbe0 [ 6058.541250][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6058.541250][ T254] ___sys_sendmsg+0xee/0x170 [ 6058.541250][ T254] __sys_sendmsg+0xcd/0x170 [ 6058.541250][ T254] do_syscall_64+0xc6/0x1e0 [ 6058.541250][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6058.541250][ T254] [ 6068.783873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6068.784285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.784285][ T254] dst_init+0x84/0x4a0 [ 6068.784285][ T254] dst_alloc+0x97/0x150 [ 6068.784285][ T254] ip6_dst_alloc+0x23/0x90 [ 6068.784285][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6068.784285][ T254] ip6_pol_route+0x56f/0x840 [ 6068.784285][ T254] fib6_rule_lookup+0x334/0x630 [ 6068.784285][ T254] ip6_route_output_flags+0x259/0x480 [ 6068.784285][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6068.784285][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6068.784285][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.784285][ T254] netlink_unicast+0x449/0x710 [ 6068.784285][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.784285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.784285][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.784285][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.784285][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.784285][ T254] [ 6068.786476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.786476][ T254] netdev_get_by_index+0x5e/0x80 [ 6068.786476][ T254] fib6_nh_init+0x3d8/0x1580 [ 6068.786476][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6068.786476][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6068.786476][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6068.786476][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6068.786476][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6068.786476][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6068.786476][ T254] addrconf_dad_begin+0x310/0x670 [ 6068.786476][ T254] addrconf_dad_work+0x10b/0xab0 [ 6068.786476][ T254] process_one_work+0x84d/0x18a0 [ 6068.786476][ T254] worker_thread+0x587/0xd30 [ 6068.786476][ T254] kthread+0x28a/0x350 [ 6068.786476][ T254] ret_from_fork+0x31/0x70 [ 6068.786476][ T254] ret_from_fork_asm+0x1a/0x30 [ 6068.786476][ T254] [ 6068.788620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.788620][ T254] netdev_get_by_index+0x5e/0x80 [ 6068.788620][ T254] fib6_nh_init+0x3d8/0x1580 [ 6068.788620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6068.788620][ T254] ip6_route_add+0x1c/0x140 [ 6068.788620][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6068.788620][ T254] inet6_addr_add+0x4f8/0xa40 [ 6068.788620][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6068.788620][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6068.788620][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.788620][ T254] netlink_unicast+0x449/0x710 [ 6068.788620][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.788620][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.788620][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.788620][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.788620][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.788620][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6068.788620][ T254] [ 6068.790891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.790891][ T254] netdev_get_by_index+0x5e/0x80 [ 6068.790891][ T254] fib6_nh_init+0x3d8/0x1580 [ 6068.790891][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6068.790891][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6068.790891][ T254] ipv6_add_addr+0x411/0x2000 [ 6068.790891][ T254] inet6_addr_add+0x30e/0xa40 [ 6068.790891][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6068.790891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6068.790891][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.790891][ T254] netlink_unicast+0x449/0x710 [ 6068.790891][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.790891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.790891][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.790891][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.790891][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.790891][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6068.790891][ T254] [ 6068.793508][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.793508][ T254] netdev_get_by_index+0x5e/0x80 [ 6068.793508][ T254] fib6_nh_init+0x3d8/0x1580 [ 6068.793508][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6068.793508][ T254] ip6_route_add+0x1c/0x140 [ 6068.793508][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6068.793508][ T254] addrconf_add_dev+0xe2/0x170 [ 6068.793508][ T254] inet6_addr_add+0x12f/0xa40 [ 6068.793508][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6068.793508][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6068.793508][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.793508][ T254] netlink_unicast+0x449/0x710 [ 6068.793508][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.793508][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.793508][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.793508][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.793508][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.793508][ T254] [ 6068.795699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.795699][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6068.795699][ T254] ipv6_find_idev+0x102/0x170 [ 6068.795699][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6068.795699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6068.795699][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.795699][ T254] netlink_unicast+0x449/0x710 [ 6068.795699][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.795699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.795699][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.795699][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.795699][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.795699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6068.795699][ T254] [ 6068.797417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6068.797417][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6068.797417][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6068.797417][ T254] ipv6_find_idev+0x102/0x170 [ 6068.797417][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6068.797417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6068.797417][ T254] netlink_rcv_skb+0x130/0x360 [ 6068.797417][ T254] netlink_unicast+0x449/0x710 [ 6068.797417][ T254] netlink_sendmsg+0x723/0xbe0 [ 6068.797417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6068.797417][ T254] ___sys_sendmsg+0xee/0x170 [ 6068.797417][ T254] __sys_sendmsg+0xcd/0x170 [ 6068.797417][ T254] do_syscall_64+0xc6/0x1e0 [ 6068.797417][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6068.797417][ T254] [ 6079.039875][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6079.040356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.040356][ T254] dst_init+0x84/0x4a0 [ 6079.040356][ T254] dst_alloc+0x97/0x150 [ 6079.040356][ T254] ip6_dst_alloc+0x23/0x90 [ 6079.040356][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6079.040356][ T254] ip6_pol_route+0x56f/0x840 [ 6079.040356][ T254] fib6_rule_lookup+0x334/0x630 [ 6079.040356][ T254] ip6_route_output_flags+0x259/0x480 [ 6079.040356][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6079.040356][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6079.040356][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.040356][ T254] netlink_unicast+0x449/0x710 [ 6079.040356][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.040356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.040356][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.040356][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.040356][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.040356][ T254] [ 6079.042575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.042575][ T254] netdev_get_by_index+0x5e/0x80 [ 6079.042575][ T254] fib6_nh_init+0x3d8/0x1580 [ 6079.042575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6079.042575][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6079.042575][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6079.042575][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6079.042575][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6079.042575][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6079.042575][ T254] addrconf_dad_begin+0x310/0x670 [ 6079.042575][ T254] addrconf_dad_work+0x10b/0xab0 [ 6079.042575][ T254] process_one_work+0x84d/0x18a0 [ 6079.042575][ T254] worker_thread+0x587/0xd30 [ 6079.042575][ T254] kthread+0x28a/0x350 [ 6079.042575][ T254] ret_from_fork+0x31/0x70 [ 6079.042575][ T254] ret_from_fork_asm+0x1a/0x30 [ 6079.042575][ T254] [ 6079.044734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.044734][ T254] netdev_get_by_index+0x5e/0x80 [ 6079.044734][ T254] fib6_nh_init+0x3d8/0x1580 [ 6079.044734][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6079.044734][ T254] ip6_route_add+0x1c/0x140 [ 6079.044734][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6079.044734][ T254] inet6_addr_add+0x4f8/0xa40 [ 6079.044734][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6079.044734][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6079.044734][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.044734][ T254] netlink_unicast+0x449/0x710 [ 6079.044734][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.044734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.044734][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.044734][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.044734][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.044734][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6079.044734][ T254] [ 6079.047011][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.047011][ T254] netdev_get_by_index+0x5e/0x80 [ 6079.047011][ T254] fib6_nh_init+0x3d8/0x1580 [ 6079.047011][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6079.047011][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6079.047011][ T254] ipv6_add_addr+0x411/0x2000 [ 6079.047011][ T254] inet6_addr_add+0x30e/0xa40 [ 6079.047011][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6079.047011][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6079.047011][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.047011][ T254] netlink_unicast+0x449/0x710 [ 6079.047011][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.047011][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.047011][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.047011][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.047011][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.047011][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6079.047011][ T254] [ 6079.049312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.049312][ T254] netdev_get_by_index+0x5e/0x80 [ 6079.049312][ T254] fib6_nh_init+0x3d8/0x1580 [ 6079.049312][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6079.049312][ T254] ip6_route_add+0x1c/0x140 [ 6079.049312][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6079.049312][ T254] addrconf_add_dev+0xe2/0x170 [ 6079.049312][ T254] inet6_addr_add+0x12f/0xa40 [ 6079.049312][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6079.049312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6079.049312][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.049312][ T254] netlink_unicast+0x449/0x710 [ 6079.049312][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.049312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.049312][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.049312][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.049312][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.049312][ T254] [ 6079.051537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.051537][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6079.051537][ T254] ipv6_find_idev+0x102/0x170 [ 6079.051537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6079.051537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6079.051537][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.051537][ T254] netlink_unicast+0x449/0x710 [ 6079.051537][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.051537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.051537][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.051537][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.051537][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.051537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6079.051537][ T254] [ 6079.053282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6079.053282][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6079.053282][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6079.053282][ T254] ipv6_find_idev+0x102/0x170 [ 6079.053282][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6079.053282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6079.053282][ T254] netlink_rcv_skb+0x130/0x360 [ 6079.053282][ T254] netlink_unicast+0x449/0x710 [ 6079.053282][ T254] netlink_sendmsg+0x723/0xbe0 [ 6079.053282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6079.053282][ T254] ___sys_sendmsg+0xee/0x170 [ 6079.053282][ T254] __sys_sendmsg+0xcd/0x170 [ 6079.053282][ T254] do_syscall_64+0xc6/0x1e0 [ 6079.053282][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6079.053282][ T254] [ 6089.295846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6089.296341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.296341][ T254] dst_init+0x84/0x4a0 [ 6089.296341][ T254] dst_alloc+0x97/0x150 [ 6089.296341][ T254] ip6_dst_alloc+0x23/0x90 [ 6089.296341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6089.296341][ T254] ip6_pol_route+0x56f/0x840 [ 6089.296341][ T254] fib6_rule_lookup+0x334/0x630 [ 6089.296341][ T254] ip6_route_output_flags+0x259/0x480 [ 6089.296341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6089.296341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6089.296341][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.296341][ T254] netlink_unicast+0x449/0x710 [ 6089.296341][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.296341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.296341][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.296341][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.296341][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.296341][ T254] [ 6089.298642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.298642][ T254] netdev_get_by_index+0x5e/0x80 [ 6089.298642][ T254] fib6_nh_init+0x3d8/0x1580 [ 6089.298642][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6089.298642][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6089.298642][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6089.298642][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6089.298642][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6089.298642][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6089.298642][ T254] addrconf_dad_begin+0x310/0x670 [ 6089.298642][ T254] addrconf_dad_work+0x10b/0xab0 [ 6089.298642][ T254] process_one_work+0x84d/0x18a0 [ 6089.298642][ T254] worker_thread+0x587/0xd30 [ 6089.298642][ T254] kthread+0x28a/0x350 [ 6089.298642][ T254] ret_from_fork+0x31/0x70 [ 6089.298642][ T254] ret_from_fork_asm+0x1a/0x30 [ 6089.298642][ T254] [ 6089.300831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.300831][ T254] netdev_get_by_index+0x5e/0x80 [ 6089.300831][ T254] fib6_nh_init+0x3d8/0x1580 [ 6089.300831][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6089.300831][ T254] ip6_route_add+0x1c/0x140 [ 6089.300831][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6089.300831][ T254] inet6_addr_add+0x4f8/0xa40 [ 6089.300831][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6089.300831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6089.300831][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.300831][ T254] netlink_unicast+0x449/0x710 [ 6089.300831][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.300831][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.300831][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.300831][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.300831][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.300831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6089.300831][ T254] [ 6089.303068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.303068][ T254] netdev_get_by_index+0x5e/0x80 [ 6089.303068][ T254] fib6_nh_init+0x3d8/0x1580 [ 6089.303068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6089.303068][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6089.303068][ T254] ipv6_add_addr+0x411/0x2000 [ 6089.303068][ T254] inet6_addr_add+0x30e/0xa40 [ 6089.303068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6089.303068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6089.303068][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.303068][ T254] netlink_unicast+0x449/0x710 [ 6089.303068][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.303068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.303068][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.303068][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.303068][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.303068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6089.303068][ T254] [ 6089.305298][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.305298][ T254] netdev_get_by_index+0x5e/0x80 [ 6089.305298][ T254] fib6_nh_init+0x3d8/0x1580 [ 6089.305298][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6089.305298][ T254] ip6_route_add+0x1c/0x140 [ 6089.305298][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6089.305298][ T254] addrconf_add_dev+0xe2/0x170 [ 6089.305298][ T254] inet6_addr_add+0x12f/0xa40 [ 6089.305298][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6089.305298][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6089.305298][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.305298][ T254] netlink_unicast+0x449/0x710 [ 6089.305298][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.305298][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.305298][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.305298][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.305298][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.305298][ T254] [ 6089.307489][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.307489][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6089.307489][ T254] ipv6_find_idev+0x102/0x170 [ 6089.307489][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6089.307489][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6089.307489][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.307489][ T254] netlink_unicast+0x449/0x710 [ 6089.307489][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.307489][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.307489][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.307489][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.307489][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.307489][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6089.307489][ T254] [ 6089.309213][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6089.309213][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6089.309213][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6089.309213][ T254] ipv6_find_idev+0x102/0x170 [ 6089.309213][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6089.309213][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6089.309213][ T254] netlink_rcv_skb+0x130/0x360 [ 6089.309213][ T254] netlink_unicast+0x449/0x710 [ 6089.309213][ T254] netlink_sendmsg+0x723/0xbe0 [ 6089.309213][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6089.309213][ T254] ___sys_sendmsg+0xee/0x170 [ 6089.309213][ T254] __sys_sendmsg+0xcd/0x170 [ 6089.309213][ T254] do_syscall_64+0xc6/0x1e0 [ 6089.309213][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6089.309213][ T254] [ 6099.551849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6099.552315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.552315][ T254] dst_init+0x84/0x4a0 [ 6099.552315][ T254] dst_alloc+0x97/0x150 [ 6099.552315][ T254] ip6_dst_alloc+0x23/0x90 [ 6099.552315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6099.552315][ T254] ip6_pol_route+0x56f/0x840 [ 6099.552315][ T254] fib6_rule_lookup+0x334/0x630 [ 6099.552315][ T254] ip6_route_output_flags+0x259/0x480 [ 6099.552315][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6099.552315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6099.552315][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.552315][ T254] netlink_unicast+0x449/0x710 [ 6099.552315][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.552315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.552315][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.552315][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.552315][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.552315][ T254] [ 6099.554503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.554503][ T254] netdev_get_by_index+0x5e/0x80 [ 6099.554503][ T254] fib6_nh_init+0x3d8/0x1580 [ 6099.554503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6099.554503][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6099.554503][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6099.554503][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6099.554503][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6099.554503][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6099.554503][ T254] addrconf_dad_begin+0x310/0x670 [ 6099.554503][ T254] addrconf_dad_work+0x10b/0xab0 [ 6099.554503][ T254] process_one_work+0x84d/0x18a0 [ 6099.554503][ T254] worker_thread+0x587/0xd30 [ 6099.554503][ T254] kthread+0x28a/0x350 [ 6099.554503][ T254] ret_from_fork+0x31/0x70 [ 6099.554503][ T254] ret_from_fork_asm+0x1a/0x30 [ 6099.554503][ T254] [ 6099.556650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.556650][ T254] netdev_get_by_index+0x5e/0x80 [ 6099.556650][ T254] fib6_nh_init+0x3d8/0x1580 [ 6099.556650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6099.556650][ T254] ip6_route_add+0x1c/0x140 [ 6099.556650][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6099.556650][ T254] inet6_addr_add+0x4f8/0xa40 [ 6099.556650][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6099.556650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6099.556650][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.556650][ T254] netlink_unicast+0x449/0x710 [ 6099.556650][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.556650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.556650][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.556650][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.556650][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.556650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6099.556650][ T254] [ 6099.558893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.558893][ T254] netdev_get_by_index+0x5e/0x80 [ 6099.558893][ T254] fib6_nh_init+0x3d8/0x1580 [ 6099.558893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6099.558893][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6099.558893][ T254] ipv6_add_addr+0x411/0x2000 [ 6099.558893][ T254] inet6_addr_add+0x30e/0xa40 [ 6099.558893][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6099.558893][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6099.558893][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.558893][ T254] netlink_unicast+0x449/0x710 [ 6099.558893][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.558893][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.558893][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.558893][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.558893][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.558893][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6099.558893][ T254] [ 6099.561146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.561146][ T254] netdev_get_by_index+0x5e/0x80 [ 6099.561146][ T254] fib6_nh_init+0x3d8/0x1580 [ 6099.561146][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6099.561146][ T254] ip6_route_add+0x1c/0x140 [ 6099.561146][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6099.561146][ T254] addrconf_add_dev+0xe2/0x170 [ 6099.561146][ T254] inet6_addr_add+0x12f/0xa40 [ 6099.561146][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6099.561146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6099.561146][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.561146][ T254] netlink_unicast+0x449/0x710 [ 6099.561146][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.561146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.561146][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.561146][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.561146][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.561146][ T254] [ 6099.563335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.563335][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6099.563335][ T254] ipv6_find_idev+0x102/0x170 [ 6099.563335][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6099.563335][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6099.563335][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.563335][ T254] netlink_unicast+0x449/0x710 [ 6099.563335][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.563335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.563335][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.563335][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.563335][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.563335][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6099.563335][ T254] [ 6099.565068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6099.565068][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6099.565068][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6099.565068][ T254] ipv6_find_idev+0x102/0x170 [ 6099.565068][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6099.565068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6099.565068][ T254] netlink_rcv_skb+0x130/0x360 [ 6099.565068][ T254] netlink_unicast+0x449/0x710 [ 6099.565068][ T254] netlink_sendmsg+0x723/0xbe0 [ 6099.565068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6099.565068][ T254] ___sys_sendmsg+0xee/0x170 [ 6099.565068][ T254] __sys_sendmsg+0xcd/0x170 [ 6099.565068][ T254] do_syscall_64+0xc6/0x1e0 [ 6099.565068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6099.565068][ T254] [ 6109.599850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6109.600263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.600263][ T254] dst_init+0x84/0x4a0 [ 6109.600263][ T254] dst_alloc+0x97/0x150 [ 6109.600263][ T254] ip6_dst_alloc+0x23/0x90 [ 6109.600263][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6109.600263][ T254] ip6_pol_route+0x56f/0x840 [ 6109.600263][ T254] fib6_rule_lookup+0x334/0x630 [ 6109.600263][ T254] ip6_route_output_flags+0x259/0x480 [ 6109.600263][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6109.600263][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6109.600263][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.600263][ T254] netlink_unicast+0x449/0x710 [ 6109.600263][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.600263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.600263][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.600263][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.600263][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.600263][ T254] [ 6109.602448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.602448][ T254] netdev_get_by_index+0x5e/0x80 [ 6109.602448][ T254] fib6_nh_init+0x3d8/0x1580 [ 6109.602448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6109.602448][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6109.602448][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6109.602448][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6109.602448][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6109.602448][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6109.602448][ T254] addrconf_dad_begin+0x310/0x670 [ 6109.602448][ T254] addrconf_dad_work+0x10b/0xab0 [ 6109.602448][ T254] process_one_work+0x84d/0x18a0 [ 6109.602448][ T254] worker_thread+0x587/0xd30 [ 6109.602448][ T254] kthread+0x28a/0x350 [ 6109.602448][ T254] ret_from_fork+0x31/0x70 [ 6109.602448][ T254] ret_from_fork_asm+0x1a/0x30 [ 6109.602448][ T254] [ 6109.604582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.604582][ T254] netdev_get_by_index+0x5e/0x80 [ 6109.604582][ T254] fib6_nh_init+0x3d8/0x1580 [ 6109.604582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6109.604582][ T254] ip6_route_add+0x1c/0x140 [ 6109.604582][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6109.604582][ T254] inet6_addr_add+0x4f8/0xa40 [ 6109.604582][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6109.604582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6109.604582][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.604582][ T254] netlink_unicast+0x449/0x710 [ 6109.604582][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.604582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.604582][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.604582][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.604582][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.604582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6109.604582][ T254] [ 6109.606824][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.606824][ T254] netdev_get_by_index+0x5e/0x80 [ 6109.606824][ T254] fib6_nh_init+0x3d8/0x1580 [ 6109.606824][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6109.606824][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6109.606824][ T254] ipv6_add_addr+0x411/0x2000 [ 6109.606824][ T254] inet6_addr_add+0x30e/0xa40 [ 6109.606824][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6109.606824][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6109.606824][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.606824][ T254] netlink_unicast+0x449/0x710 [ 6109.606824][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.606824][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.606824][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.606824][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.606824][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.606824][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6109.606824][ T254] [ 6109.609063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.609063][ T254] netdev_get_by_index+0x5e/0x80 [ 6109.609063][ T254] fib6_nh_init+0x3d8/0x1580 [ 6109.609063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6109.609063][ T254] ip6_route_add+0x1c/0x140 [ 6109.609063][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6109.609063][ T254] addrconf_add_dev+0xe2/0x170 [ 6109.609063][ T254] inet6_addr_add+0x12f/0xa40 [ 6109.609063][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6109.609063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6109.609063][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.609063][ T254] netlink_unicast+0x449/0x710 [ 6109.609063][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.609063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.609063][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.609063][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.609063][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.609063][ T254] [ 6109.611250][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.611250][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6109.611250][ T254] ipv6_find_idev+0x102/0x170 [ 6109.611250][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6109.611250][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6109.611250][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.611250][ T254] netlink_unicast+0x449/0x710 [ 6109.611250][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.611250][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.611250][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.611250][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.611250][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.611250][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6109.611250][ T254] [ 6109.612968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6109.612968][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6109.612968][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6109.612968][ T254] ipv6_find_idev+0x102/0x170 [ 6109.612968][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6109.612968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6109.612968][ T254] netlink_rcv_skb+0x130/0x360 [ 6109.612968][ T254] netlink_unicast+0x449/0x710 [ 6109.612968][ T254] netlink_sendmsg+0x723/0xbe0 [ 6109.612968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6109.612968][ T254] ___sys_sendmsg+0xee/0x170 [ 6109.612968][ T254] __sys_sendmsg+0xcd/0x170 [ 6109.612968][ T254] do_syscall_64+0xc6/0x1e0 [ 6109.612968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6109.612968][ T254] [ 6119.855876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6119.856350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.856350][ T254] dst_init+0x84/0x4a0 [ 6119.856350][ T254] dst_alloc+0x97/0x150 [ 6119.856350][ T254] ip6_dst_alloc+0x23/0x90 [ 6119.856350][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6119.856350][ T254] ip6_pol_route+0x56f/0x840 [ 6119.856350][ T254] fib6_rule_lookup+0x334/0x630 [ 6119.856350][ T254] ip6_route_output_flags+0x259/0x480 [ 6119.856350][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6119.856350][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6119.856350][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.856350][ T254] netlink_unicast+0x449/0x710 [ 6119.856350][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.856350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.856350][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.856350][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.856350][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.856350][ T254] [ 6119.858549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.858549][ T254] netdev_get_by_index+0x5e/0x80 [ 6119.858549][ T254] fib6_nh_init+0x3d8/0x1580 [ 6119.858549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6119.858549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6119.858549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6119.858549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6119.858549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6119.858549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6119.858549][ T254] addrconf_dad_begin+0x310/0x670 [ 6119.858549][ T254] addrconf_dad_work+0x10b/0xab0 [ 6119.858549][ T254] process_one_work+0x84d/0x18a0 [ 6119.858549][ T254] worker_thread+0x587/0xd30 [ 6119.858549][ T254] kthread+0x28a/0x350 [ 6119.858549][ T254] ret_from_fork+0x31/0x70 [ 6119.858549][ T254] ret_from_fork_asm+0x1a/0x30 [ 6119.858549][ T254] [ 6119.860699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.860699][ T254] netdev_get_by_index+0x5e/0x80 [ 6119.860699][ T254] fib6_nh_init+0x3d8/0x1580 [ 6119.860699][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6119.860699][ T254] ip6_route_add+0x1c/0x140 [ 6119.860699][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6119.860699][ T254] inet6_addr_add+0x4f8/0xa40 [ 6119.860699][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6119.860699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6119.860699][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.860699][ T254] netlink_unicast+0x449/0x710 [ 6119.860699][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.860699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.860699][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.860699][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.860699][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.860699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6119.860699][ T254] [ 6119.862935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.862935][ T254] netdev_get_by_index+0x5e/0x80 [ 6119.862935][ T254] fib6_nh_init+0x3d8/0x1580 [ 6119.862935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6119.862935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6119.862935][ T254] ipv6_add_addr+0x411/0x2000 [ 6119.862935][ T254] inet6_addr_add+0x30e/0xa40 [ 6119.862935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6119.862935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6119.862935][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.862935][ T254] netlink_unicast+0x449/0x710 [ 6119.862935][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.862935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.862935][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.862935][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.862935][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.862935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6119.862935][ T254] [ 6119.865170][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.865170][ T254] netdev_get_by_index+0x5e/0x80 [ 6119.865170][ T254] fib6_nh_init+0x3d8/0x1580 [ 6119.865170][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6119.865170][ T254] ip6_route_add+0x1c/0x140 [ 6119.865170][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6119.865170][ T254] addrconf_add_dev+0xe2/0x170 [ 6119.865170][ T254] inet6_addr_add+0x12f/0xa40 [ 6119.865170][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6119.865170][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6119.865170][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.865170][ T254] netlink_unicast+0x449/0x710 [ 6119.865170][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.865170][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.865170][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.865170][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.865170][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.865170][ T254] [ 6119.867365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.867365][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6119.867365][ T254] ipv6_find_idev+0x102/0x170 [ 6119.867365][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6119.867365][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6119.867365][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.867365][ T254] netlink_unicast+0x449/0x710 [ 6119.867365][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.867365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.867365][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.867365][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.867365][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.867365][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6119.867365][ T254] [ 6119.869105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6119.869105][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6119.869105][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6119.869105][ T254] ipv6_find_idev+0x102/0x170 [ 6119.869105][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6119.869105][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6119.869105][ T254] netlink_rcv_skb+0x130/0x360 [ 6119.869105][ T254] netlink_unicast+0x449/0x710 [ 6119.869105][ T254] netlink_sendmsg+0x723/0xbe0 [ 6119.869105][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6119.869105][ T254] ___sys_sendmsg+0xee/0x170 [ 6119.869105][ T254] __sys_sendmsg+0xcd/0x170 [ 6119.869105][ T254] do_syscall_64+0xc6/0x1e0 [ 6119.869105][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6119.869105][ T254] [ 6129.871851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6129.872326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.872326][ T254] dst_init+0x84/0x4a0 [ 6129.872326][ T254] dst_alloc+0x97/0x150 [ 6129.872326][ T254] ip6_dst_alloc+0x23/0x90 [ 6129.872326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6129.872326][ T254] ip6_pol_route+0x56f/0x840 [ 6129.872326][ T254] fib6_rule_lookup+0x334/0x630 [ 6129.872326][ T254] ip6_route_output_flags+0x259/0x480 [ 6129.872326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6129.872326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6129.872326][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.872326][ T254] netlink_unicast+0x449/0x710 [ 6129.872326][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.872326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.872326][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.872326][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.872326][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.872326][ T254] [ 6129.874505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.874505][ T254] netdev_get_by_index+0x5e/0x80 [ 6129.874505][ T254] fib6_nh_init+0x3d8/0x1580 [ 6129.874505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6129.874505][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6129.874505][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6129.874505][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6129.874505][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6129.874505][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6129.874505][ T254] addrconf_dad_begin+0x310/0x670 [ 6129.874505][ T254] addrconf_dad_work+0x10b/0xab0 [ 6129.874505][ T254] process_one_work+0x84d/0x18a0 [ 6129.874505][ T254] worker_thread+0x587/0xd30 [ 6129.874505][ T254] kthread+0x28a/0x350 [ 6129.874505][ T254] ret_from_fork+0x31/0x70 [ 6129.874505][ T254] ret_from_fork_asm+0x1a/0x30 [ 6129.874505][ T254] [ 6129.876661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.876661][ T254] netdev_get_by_index+0x5e/0x80 [ 6129.876661][ T254] fib6_nh_init+0x3d8/0x1580 [ 6129.876661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6129.876661][ T254] ip6_route_add+0x1c/0x140 [ 6129.876661][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6129.876661][ T254] inet6_addr_add+0x4f8/0xa40 [ 6129.876661][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6129.876661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6129.876661][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.876661][ T254] netlink_unicast+0x449/0x710 [ 6129.876661][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.876661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.876661][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.876661][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.876661][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.876661][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6129.876661][ T254] [ 6129.878904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.878904][ T254] netdev_get_by_index+0x5e/0x80 [ 6129.878904][ T254] fib6_nh_init+0x3d8/0x1580 [ 6129.878904][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6129.878904][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6129.878904][ T254] ipv6_add_addr+0x411/0x2000 [ 6129.878904][ T254] inet6_addr_add+0x30e/0xa40 [ 6129.878904][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6129.878904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6129.878904][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.878904][ T254] netlink_unicast+0x449/0x710 [ 6129.878904][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.878904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.878904][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.878904][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.878904][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.878904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6129.878904][ T254] [ 6129.881132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.881132][ T254] netdev_get_by_index+0x5e/0x80 [ 6129.881132][ T254] fib6_nh_init+0x3d8/0x1580 [ 6129.881132][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6129.881132][ T254] ip6_route_add+0x1c/0x140 [ 6129.881132][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6129.881132][ T254] addrconf_add_dev+0xe2/0x170 [ 6129.881132][ T254] inet6_addr_add+0x12f/0xa40 [ 6129.881132][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6129.881132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6129.881132][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.881132][ T254] netlink_unicast+0x449/0x710 [ 6129.881132][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.881132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.881132][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.881132][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.881132][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.881132][ T254] [ 6129.883319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.883319][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6129.883319][ T254] ipv6_find_idev+0x102/0x170 [ 6129.883319][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6129.883319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6129.883319][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.883319][ T254] netlink_unicast+0x449/0x710 [ 6129.883319][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.883319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.883319][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.883319][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.883319][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.883319][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6129.883319][ T254] [ 6129.885046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6129.885046][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6129.885046][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6129.885046][ T254] ipv6_find_idev+0x102/0x170 [ 6129.885046][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6129.885046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6129.885046][ T254] netlink_rcv_skb+0x130/0x360 [ 6129.885046][ T254] netlink_unicast+0x449/0x710 [ 6129.885046][ T254] netlink_sendmsg+0x723/0xbe0 [ 6129.885046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6129.885046][ T254] ___sys_sendmsg+0xee/0x170 [ 6129.885046][ T254] __sys_sendmsg+0xcd/0x170 [ 6129.885046][ T254] do_syscall_64+0xc6/0x1e0 [ 6129.885046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6129.885046][ T254] [ 6140.135844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6140.136337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.136337][ T254] dst_init+0x84/0x4a0 [ 6140.136337][ T254] dst_alloc+0x97/0x150 [ 6140.136337][ T254] ip6_dst_alloc+0x23/0x90 [ 6140.136337][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6140.136337][ T254] ip6_pol_route+0x56f/0x840 [ 6140.136337][ T254] fib6_rule_lookup+0x334/0x630 [ 6140.136337][ T254] ip6_route_output_flags+0x259/0x480 [ 6140.136337][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6140.136337][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6140.136337][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.136337][ T254] netlink_unicast+0x449/0x710 [ 6140.136337][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.136337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.136337][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.136337][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.136337][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.136337][ T254] [ 6140.138525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.138525][ T254] netdev_get_by_index+0x5e/0x80 [ 6140.138525][ T254] fib6_nh_init+0x3d8/0x1580 [ 6140.138525][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6140.138525][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6140.138525][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6140.138525][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6140.138525][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6140.138525][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6140.138525][ T254] addrconf_dad_begin+0x310/0x670 [ 6140.138525][ T254] addrconf_dad_work+0x10b/0xab0 [ 6140.138525][ T254] process_one_work+0x84d/0x18a0 [ 6140.138525][ T254] worker_thread+0x587/0xd30 [ 6140.138525][ T254] kthread+0x28a/0x350 [ 6140.138525][ T254] ret_from_fork+0x31/0x70 [ 6140.138525][ T254] ret_from_fork_asm+0x1a/0x30 [ 6140.138525][ T254] [ 6140.140692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.140692][ T254] netdev_get_by_index+0x5e/0x80 [ 6140.140692][ T254] fib6_nh_init+0x3d8/0x1580 [ 6140.140692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6140.140692][ T254] ip6_route_add+0x1c/0x140 [ 6140.140692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6140.140692][ T254] inet6_addr_add+0x4f8/0xa40 [ 6140.140692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6140.140692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6140.140692][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.140692][ T254] netlink_unicast+0x449/0x710 [ 6140.140692][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.140692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.140692][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.140692][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.140692][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.140692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6140.140692][ T254] [ 6140.142916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.142916][ T254] netdev_get_by_index+0x5e/0x80 [ 6140.142916][ T254] fib6_nh_init+0x3d8/0x1580 [ 6140.142916][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6140.142916][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6140.142916][ T254] ipv6_add_addr+0x411/0x2000 [ 6140.142916][ T254] inet6_addr_add+0x30e/0xa40 [ 6140.142916][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6140.142916][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6140.142916][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.142916][ T254] netlink_unicast+0x449/0x710 [ 6140.142916][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.142916][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.142916][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.142916][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.142916][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.142916][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6140.142916][ T254] [ 6140.145146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.145146][ T254] netdev_get_by_index+0x5e/0x80 [ 6140.145146][ T254] fib6_nh_init+0x3d8/0x1580 [ 6140.145146][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6140.145146][ T254] ip6_route_add+0x1c/0x140 [ 6140.145146][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6140.145146][ T254] addrconf_add_dev+0xe2/0x170 [ 6140.145146][ T254] inet6_addr_add+0x12f/0xa40 [ 6140.145146][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6140.145146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6140.145146][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.145146][ T254] netlink_unicast+0x449/0x710 [ 6140.145146][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.145146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.145146][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.145146][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.145146][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.145146][ T254] [ 6140.147337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.147337][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6140.147337][ T254] ipv6_find_idev+0x102/0x170 [ 6140.147337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6140.147337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6140.147337][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.147337][ T254] netlink_unicast+0x449/0x710 [ 6140.147337][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.147337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.147337][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.147337][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.147337][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.147337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6140.147337][ T254] [ 6140.149168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6140.149168][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6140.149168][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6140.149168][ T254] ipv6_find_idev+0x102/0x170 [ 6140.149168][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6140.149168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6140.149168][ T254] netlink_rcv_skb+0x130/0x360 [ 6140.149168][ T254] netlink_unicast+0x449/0x710 [ 6140.149168][ T254] netlink_sendmsg+0x723/0xbe0 [ 6140.149168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6140.149168][ T254] ___sys_sendmsg+0xee/0x170 [ 6140.149168][ T254] __sys_sendmsg+0xcd/0x170 [ 6140.149168][ T254] do_syscall_64+0xc6/0x1e0 [ 6140.149168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6140.149168][ T254] [ 6150.215857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6150.216343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.216343][ T254] dst_init+0x84/0x4a0 [ 6150.216343][ T254] dst_alloc+0x97/0x150 [ 6150.216343][ T254] ip6_dst_alloc+0x23/0x90 [ 6150.216343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6150.216343][ T254] ip6_pol_route+0x56f/0x840 [ 6150.216343][ T254] fib6_rule_lookup+0x334/0x630 [ 6150.216343][ T254] ip6_route_output_flags+0x259/0x480 [ 6150.216343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6150.216343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6150.216343][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.216343][ T254] netlink_unicast+0x449/0x710 [ 6150.216343][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.216343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.216343][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.216343][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.216343][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.216343][ T254] [ 6150.218536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.218536][ T254] netdev_get_by_index+0x5e/0x80 [ 6150.218536][ T254] fib6_nh_init+0x3d8/0x1580 [ 6150.218536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6150.218536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6150.218536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6150.218536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6150.218536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6150.218536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6150.218536][ T254] addrconf_dad_begin+0x310/0x670 [ 6150.218536][ T254] addrconf_dad_work+0x10b/0xab0 [ 6150.218536][ T254] process_one_work+0x84d/0x18a0 [ 6150.218536][ T254] worker_thread+0x587/0xd30 [ 6150.218536][ T254] kthread+0x28a/0x350 [ 6150.218536][ T254] ret_from_fork+0x31/0x70 [ 6150.218536][ T254] ret_from_fork_asm+0x1a/0x30 [ 6150.218536][ T254] [ 6150.220690][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.220690][ T254] netdev_get_by_index+0x5e/0x80 [ 6150.220690][ T254] fib6_nh_init+0x3d8/0x1580 [ 6150.220690][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6150.220690][ T254] ip6_route_add+0x1c/0x140 [ 6150.220690][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6150.220690][ T254] inet6_addr_add+0x4f8/0xa40 [ 6150.220690][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6150.220690][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6150.220690][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.220690][ T254] netlink_unicast+0x449/0x710 [ 6150.220690][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.220690][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.220690][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.220690][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.220690][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.220690][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6150.220690][ T254] [ 6150.222924][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.222924][ T254] netdev_get_by_index+0x5e/0x80 [ 6150.222924][ T254] fib6_nh_init+0x3d8/0x1580 [ 6150.222924][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6150.222924][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6150.222924][ T254] ipv6_add_addr+0x411/0x2000 [ 6150.222924][ T254] inet6_addr_add+0x30e/0xa40 [ 6150.222924][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6150.222924][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6150.222924][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.222924][ T254] netlink_unicast+0x449/0x710 [ 6150.222924][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.222924][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.222924][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.222924][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.222924][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.222924][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6150.222924][ T254] [ 6150.225155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.225155][ T254] netdev_get_by_index+0x5e/0x80 [ 6150.225155][ T254] fib6_nh_init+0x3d8/0x1580 [ 6150.225155][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6150.225155][ T254] ip6_route_add+0x1c/0x140 [ 6150.225155][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6150.225155][ T254] addrconf_add_dev+0xe2/0x170 [ 6150.225155][ T254] inet6_addr_add+0x12f/0xa40 [ 6150.225155][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6150.225155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6150.225155][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.225155][ T254] netlink_unicast+0x449/0x710 [ 6150.225155][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.225155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.225155][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.225155][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.225155][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.225155][ T254] [ 6150.227355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.227355][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6150.227355][ T254] ipv6_find_idev+0x102/0x170 [ 6150.227355][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6150.227355][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6150.227355][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.227355][ T254] netlink_unicast+0x449/0x710 [ 6150.227355][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.227355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.227355][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.227355][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.227355][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.227355][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6150.227355][ T254] [ 6150.229076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6150.229076][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6150.229076][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6150.229076][ T254] ipv6_find_idev+0x102/0x170 [ 6150.229076][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6150.229076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6150.229076][ T254] netlink_rcv_skb+0x130/0x360 [ 6150.229076][ T254] netlink_unicast+0x449/0x710 [ 6150.229076][ T254] netlink_sendmsg+0x723/0xbe0 [ 6150.229076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6150.229076][ T254] ___sys_sendmsg+0xee/0x170 [ 6150.229076][ T254] __sys_sendmsg+0xcd/0x170 [ 6150.229076][ T254] do_syscall_64+0xc6/0x1e0 [ 6150.229076][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6150.229076][ T254] [ 6160.839971][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6160.840452][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.840452][ T254] dst_init+0x84/0x4a0 [ 6160.840452][ T254] dst_alloc+0x97/0x150 [ 6160.840452][ T254] ip6_dst_alloc+0x23/0x90 [ 6160.840452][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6160.840452][ T254] ip6_pol_route+0x56f/0x840 [ 6160.840452][ T254] fib6_rule_lookup+0x334/0x630 [ 6160.840452][ T254] ip6_route_output_flags+0x259/0x480 [ 6160.840452][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6160.840452][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6160.840452][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.840452][ T254] netlink_unicast+0x449/0x710 [ 6160.840452][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.840452][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.840452][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.840452][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.840452][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.840452][ T254] [ 6160.842645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.842645][ T254] netdev_get_by_index+0x5e/0x80 [ 6160.842645][ T254] fib6_nh_init+0x3d8/0x1580 [ 6160.842645][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6160.842645][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6160.842645][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6160.842645][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6160.842645][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6160.842645][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6160.842645][ T254] addrconf_dad_begin+0x310/0x670 [ 6160.842645][ T254] addrconf_dad_work+0x10b/0xab0 [ 6160.842645][ T254] process_one_work+0x84d/0x18a0 [ 6160.842645][ T254] worker_thread+0x587/0xd30 [ 6160.842645][ T254] kthread+0x28a/0x350 [ 6160.842645][ T254] ret_from_fork+0x31/0x70 [ 6160.842645][ T254] ret_from_fork_asm+0x1a/0x30 [ 6160.842645][ T254] [ 6160.844781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.844781][ T254] netdev_get_by_index+0x5e/0x80 [ 6160.844781][ T254] fib6_nh_init+0x3d8/0x1580 [ 6160.844781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6160.844781][ T254] ip6_route_add+0x1c/0x140 [ 6160.844781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6160.844781][ T254] inet6_addr_add+0x4f8/0xa40 [ 6160.844781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6160.844781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6160.844781][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.844781][ T254] netlink_unicast+0x449/0x710 [ 6160.844781][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.844781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.844781][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.844781][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.844781][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.844781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6160.844781][ T254] [ 6160.847032][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.847032][ T254] netdev_get_by_index+0x5e/0x80 [ 6160.847032][ T254] fib6_nh_init+0x3d8/0x1580 [ 6160.847032][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6160.847032][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6160.847032][ T254] ipv6_add_addr+0x411/0x2000 [ 6160.847032][ T254] inet6_addr_add+0x30e/0xa40 [ 6160.847032][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6160.847032][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6160.847032][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.847032][ T254] netlink_unicast+0x449/0x710 [ 6160.847032][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.847032][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.847032][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.847032][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.847032][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.847032][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6160.847032][ T254] [ 6160.849286][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.849286][ T254] netdev_get_by_index+0x5e/0x80 [ 6160.849286][ T254] fib6_nh_init+0x3d8/0x1580 [ 6160.849286][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6160.849286][ T254] ip6_route_add+0x1c/0x140 [ 6160.849286][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6160.849286][ T254] addrconf_add_dev+0xe2/0x170 [ 6160.849286][ T254] inet6_addr_add+0x12f/0xa40 [ 6160.849286][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6160.849286][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6160.849286][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.849286][ T254] netlink_unicast+0x449/0x710 [ 6160.849286][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.849286][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.849286][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.849286][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.849286][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.849286][ T254] [ 6160.851479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.851479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6160.851479][ T254] ipv6_find_idev+0x102/0x170 [ 6160.851479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6160.851479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6160.851479][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.851479][ T254] netlink_unicast+0x449/0x710 [ 6160.851479][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.851479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.851479][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.851479][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.851479][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.851479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6160.851479][ T254] [ 6160.853204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6160.853204][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6160.853204][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6160.853204][ T254] ipv6_find_idev+0x102/0x170 [ 6160.853204][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6160.853204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6160.853204][ T254] netlink_rcv_skb+0x130/0x360 [ 6160.853204][ T254] netlink_unicast+0x449/0x710 [ 6160.853204][ T254] netlink_sendmsg+0x723/0xbe0 [ 6160.853204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6160.853204][ T254] ___sys_sendmsg+0xee/0x170 [ 6160.853204][ T254] __sys_sendmsg+0xcd/0x170 [ 6160.853204][ T254] do_syscall_64+0xc6/0x1e0 [ 6160.853204][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6160.853204][ T254] [ 6170.911873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6170.912364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.912364][ T254] dst_init+0x84/0x4a0 [ 6170.912364][ T254] dst_alloc+0x97/0x150 [ 6170.912364][ T254] ip6_dst_alloc+0x23/0x90 [ 6170.912364][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6170.912364][ T254] ip6_pol_route+0x56f/0x840 [ 6170.912364][ T254] fib6_rule_lookup+0x334/0x630 [ 6170.912364][ T254] ip6_route_output_flags+0x259/0x480 [ 6170.912364][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6170.912364][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6170.912364][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.912364][ T254] netlink_unicast+0x449/0x710 [ 6170.912364][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.912364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.912364][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.912364][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.912364][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.912364][ T254] [ 6170.914579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.914579][ T254] netdev_get_by_index+0x5e/0x80 [ 6170.914579][ T254] fib6_nh_init+0x3d8/0x1580 [ 6170.914579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6170.914579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6170.914579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6170.914579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6170.914579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6170.914579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6170.914579][ T254] addrconf_dad_begin+0x310/0x670 [ 6170.914579][ T254] addrconf_dad_work+0x10b/0xab0 [ 6170.914579][ T254] process_one_work+0x84d/0x18a0 [ 6170.914579][ T254] worker_thread+0x587/0xd30 [ 6170.914579][ T254] kthread+0x28a/0x350 [ 6170.914579][ T254] ret_from_fork+0x31/0x70 [ 6170.914579][ T254] ret_from_fork_asm+0x1a/0x30 [ 6170.914579][ T254] [ 6170.916750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.916750][ T254] netdev_get_by_index+0x5e/0x80 [ 6170.916750][ T254] fib6_nh_init+0x3d8/0x1580 [ 6170.916750][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6170.916750][ T254] ip6_route_add+0x1c/0x140 [ 6170.916750][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6170.916750][ T254] inet6_addr_add+0x4f8/0xa40 [ 6170.916750][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6170.916750][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6170.916750][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.916750][ T254] netlink_unicast+0x449/0x710 [ 6170.916750][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.916750][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.916750][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.916750][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.916750][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.916750][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6170.916750][ T254] [ 6170.919034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.919034][ T254] netdev_get_by_index+0x5e/0x80 [ 6170.919034][ T254] fib6_nh_init+0x3d8/0x1580 [ 6170.919034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6170.919034][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6170.919034][ T254] ipv6_add_addr+0x411/0x2000 [ 6170.919034][ T254] inet6_addr_add+0x30e/0xa40 [ 6170.919034][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6170.919034][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6170.919034][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.919034][ T254] netlink_unicast+0x449/0x710 [ 6170.919034][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.919034][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.919034][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.919034][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.919034][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.919034][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6170.919034][ T254] [ 6170.921305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.921305][ T254] netdev_get_by_index+0x5e/0x80 [ 6170.921305][ T254] fib6_nh_init+0x3d8/0x1580 [ 6170.921305][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6170.921305][ T254] ip6_route_add+0x1c/0x140 [ 6170.921305][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6170.921305][ T254] addrconf_add_dev+0xe2/0x170 [ 6170.921305][ T254] inet6_addr_add+0x12f/0xa40 [ 6170.921305][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6170.921305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6170.921305][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.921305][ T254] netlink_unicast+0x449/0x710 [ 6170.921305][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.921305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.921305][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.921305][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.921305][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.921305][ T254] [ 6170.923528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.923528][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6170.923528][ T254] ipv6_find_idev+0x102/0x170 [ 6170.923528][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6170.923528][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6170.923528][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.923528][ T254] netlink_unicast+0x449/0x710 [ 6170.923528][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.923528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.923528][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.923528][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.923528][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.923528][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6170.923528][ T254] [ 6170.925264][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6170.925264][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6170.925264][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6170.925264][ T254] ipv6_find_idev+0x102/0x170 [ 6170.925264][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6170.925264][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6170.925264][ T254] netlink_rcv_skb+0x130/0x360 [ 6170.925264][ T254] netlink_unicast+0x449/0x710 [ 6170.925264][ T254] netlink_sendmsg+0x723/0xbe0 [ 6170.925264][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6170.925264][ T254] ___sys_sendmsg+0xee/0x170 [ 6170.925264][ T254] __sys_sendmsg+0xcd/0x170 [ 6170.925264][ T254] do_syscall_64+0xc6/0x1e0 [ 6170.925264][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6170.925264][ T254] [ 6181.167866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6181.168297][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.168297][ T254] dst_init+0x84/0x4a0 [ 6181.168297][ T254] dst_alloc+0x97/0x150 [ 6181.168297][ T254] ip6_dst_alloc+0x23/0x90 [ 6181.168297][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6181.168297][ T254] ip6_pol_route+0x56f/0x840 [ 6181.168297][ T254] fib6_rule_lookup+0x334/0x630 [ 6181.168297][ T254] ip6_route_output_flags+0x259/0x480 [ 6181.168297][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6181.168297][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6181.168297][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.168297][ T254] netlink_unicast+0x449/0x710 [ 6181.168297][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.168297][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.168297][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.168297][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.168297][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.168297][ T254] [ 6181.170536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.170536][ T254] netdev_get_by_index+0x5e/0x80 [ 6181.170536][ T254] fib6_nh_init+0x3d8/0x1580 [ 6181.170536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6181.170536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6181.170536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6181.170536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6181.170536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6181.170536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6181.170536][ T254] addrconf_dad_begin+0x310/0x670 [ 6181.170536][ T254] addrconf_dad_work+0x10b/0xab0 [ 6181.170536][ T254] process_one_work+0x84d/0x18a0 [ 6181.170536][ T254] worker_thread+0x587/0xd30 [ 6181.170536][ T254] kthread+0x28a/0x350 [ 6181.170536][ T254] ret_from_fork+0x31/0x70 [ 6181.170536][ T254] ret_from_fork_asm+0x1a/0x30 [ 6181.170536][ T254] [ 6181.172731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.172731][ T254] netdev_get_by_index+0x5e/0x80 [ 6181.172731][ T254] fib6_nh_init+0x3d8/0x1580 [ 6181.172731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6181.172731][ T254] ip6_route_add+0x1c/0x140 [ 6181.172731][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6181.172731][ T254] inet6_addr_add+0x4f8/0xa40 [ 6181.172731][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6181.172731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6181.172731][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.172731][ T254] netlink_unicast+0x449/0x710 [ 6181.172731][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.172731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.172731][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.172731][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.172731][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.172731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6181.172731][ T254] [ 6181.174995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.174995][ T254] netdev_get_by_index+0x5e/0x80 [ 6181.174995][ T254] fib6_nh_init+0x3d8/0x1580 [ 6181.174995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6181.174995][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6181.174995][ T254] ipv6_add_addr+0x411/0x2000 [ 6181.174995][ T254] inet6_addr_add+0x30e/0xa40 [ 6181.174995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6181.174995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6181.174995][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.174995][ T254] netlink_unicast+0x449/0x710 [ 6181.174995][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.174995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.174995][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.174995][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.174995][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.174995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6181.174995][ T254] [ 6181.177780][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.177780][ T254] netdev_get_by_index+0x5e/0x80 [ 6181.177780][ T254] fib6_nh_init+0x3d8/0x1580 [ 6181.177780][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6181.177780][ T254] ip6_route_add+0x1c/0x140 [ 6181.177780][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6181.177780][ T254] addrconf_add_dev+0xe2/0x170 [ 6181.177780][ T254] inet6_addr_add+0x12f/0xa40 [ 6181.177780][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6181.177780][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6181.177780][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.177780][ T254] netlink_unicast+0x449/0x710 [ 6181.177780][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.177780][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.177780][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.177780][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.177780][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.177780][ T254] [ 6181.180009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.180009][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6181.180009][ T254] ipv6_find_idev+0x102/0x170 [ 6181.180009][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6181.180009][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6181.180009][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.180009][ T254] netlink_unicast+0x449/0x710 [ 6181.180009][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.180009][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.180009][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.180009][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.180009][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.180009][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6181.180009][ T254] [ 6181.181749][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6181.181749][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6181.181749][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6181.181749][ T254] ipv6_find_idev+0x102/0x170 [ 6181.181749][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6181.181749][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6181.181749][ T254] netlink_rcv_skb+0x130/0x360 [ 6181.181749][ T254] netlink_unicast+0x449/0x710 [ 6181.181749][ T254] netlink_sendmsg+0x723/0xbe0 [ 6181.181749][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6181.181749][ T254] ___sys_sendmsg+0xee/0x170 [ 6181.181749][ T254] __sys_sendmsg+0xcd/0x170 [ 6181.181749][ T254] do_syscall_64+0xc6/0x1e0 [ 6181.181749][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6181.181749][ T254] [ 6191.423857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6191.424284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.424284][ T254] dst_init+0x84/0x4a0 [ 6191.424284][ T254] dst_alloc+0x97/0x150 [ 6191.424284][ T254] ip6_dst_alloc+0x23/0x90 [ 6191.424284][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6191.424284][ T254] ip6_pol_route+0x56f/0x840 [ 6191.424284][ T254] fib6_rule_lookup+0x334/0x630 [ 6191.424284][ T254] ip6_route_output_flags+0x259/0x480 [ 6191.424284][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6191.424284][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6191.424284][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.424284][ T254] netlink_unicast+0x449/0x710 [ 6191.424284][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.424284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.424284][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.424284][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.424284][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.424284][ T254] [ 6191.426514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.426514][ T254] netdev_get_by_index+0x5e/0x80 [ 6191.426514][ T254] fib6_nh_init+0x3d8/0x1580 [ 6191.426514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6191.426514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6191.426514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6191.426514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6191.426514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6191.426514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6191.426514][ T254] addrconf_dad_begin+0x310/0x670 [ 6191.426514][ T254] addrconf_dad_work+0x10b/0xab0 [ 6191.426514][ T254] process_one_work+0x84d/0x18a0 [ 6191.426514][ T254] worker_thread+0x587/0xd30 [ 6191.426514][ T254] kthread+0x28a/0x350 [ 6191.426514][ T254] ret_from_fork+0x31/0x70 [ 6191.426514][ T254] ret_from_fork_asm+0x1a/0x30 [ 6191.426514][ T254] [ 6191.428675][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.428675][ T254] netdev_get_by_index+0x5e/0x80 [ 6191.428675][ T254] fib6_nh_init+0x3d8/0x1580 [ 6191.428675][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6191.428675][ T254] ip6_route_add+0x1c/0x140 [ 6191.428675][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6191.428675][ T254] inet6_addr_add+0x4f8/0xa40 [ 6191.428675][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6191.428675][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6191.428675][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.428675][ T254] netlink_unicast+0x449/0x710 [ 6191.428675][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.428675][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.428675][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.428675][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.428675][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.428675][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6191.428675][ T254] [ 6191.430935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.430935][ T254] netdev_get_by_index+0x5e/0x80 [ 6191.430935][ T254] fib6_nh_init+0x3d8/0x1580 [ 6191.430935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6191.430935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6191.430935][ T254] ipv6_add_addr+0x411/0x2000 [ 6191.430935][ T254] inet6_addr_add+0x30e/0xa40 [ 6191.430935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6191.430935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6191.430935][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.430935][ T254] netlink_unicast+0x449/0x710 [ 6191.430935][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.430935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.430935][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.430935][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.430935][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.430935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6191.430935][ T254] [ 6191.433198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.433198][ T254] netdev_get_by_index+0x5e/0x80 [ 6191.433198][ T254] fib6_nh_init+0x3d8/0x1580 [ 6191.433198][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6191.433198][ T254] ip6_route_add+0x1c/0x140 [ 6191.433198][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6191.433198][ T254] addrconf_add_dev+0xe2/0x170 [ 6191.433198][ T254] inet6_addr_add+0x12f/0xa40 [ 6191.433198][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6191.433198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6191.433198][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.433198][ T254] netlink_unicast+0x449/0x710 [ 6191.433198][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.433198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.433198][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.433198][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.433198][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.433198][ T254] [ 6191.435423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.435423][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6191.435423][ T254] ipv6_find_idev+0x102/0x170 [ 6191.435423][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6191.435423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6191.435423][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.435423][ T254] netlink_unicast+0x449/0x710 [ 6191.435423][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.435423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.435423][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.435423][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.435423][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.435423][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6191.435423][ T254] [ 6191.437169][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6191.437169][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6191.437169][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6191.437169][ T254] ipv6_find_idev+0x102/0x170 [ 6191.437169][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6191.437169][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6191.437169][ T254] netlink_rcv_skb+0x130/0x360 [ 6191.437169][ T254] netlink_unicast+0x449/0x710 [ 6191.437169][ T254] netlink_sendmsg+0x723/0xbe0 [ 6191.437169][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6191.437169][ T254] ___sys_sendmsg+0xee/0x170 [ 6191.437169][ T254] __sys_sendmsg+0xcd/0x170 [ 6191.437169][ T254] do_syscall_64+0xc6/0x1e0 [ 6191.437169][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6191.437169][ T254] [ 6201.679878][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6201.680354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.680354][ T254] dst_init+0x84/0x4a0 [ 6201.680354][ T254] dst_alloc+0x97/0x150 [ 6201.680354][ T254] ip6_dst_alloc+0x23/0x90 [ 6201.680354][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6201.680354][ T254] ip6_pol_route+0x56f/0x840 [ 6201.680354][ T254] fib6_rule_lookup+0x334/0x630 [ 6201.680354][ T254] ip6_route_output_flags+0x259/0x480 [ 6201.680354][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6201.680354][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6201.680354][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.680354][ T254] netlink_unicast+0x449/0x710 [ 6201.680354][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.680354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.680354][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.680354][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.680354][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.680354][ T254] [ 6201.682531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.682531][ T254] netdev_get_by_index+0x5e/0x80 [ 6201.682531][ T254] fib6_nh_init+0x3d8/0x1580 [ 6201.682531][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6201.682531][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6201.682531][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6201.682531][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6201.682531][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6201.682531][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6201.682531][ T254] addrconf_dad_begin+0x310/0x670 [ 6201.682531][ T254] addrconf_dad_work+0x10b/0xab0 [ 6201.682531][ T254] process_one_work+0x84d/0x18a0 [ 6201.682531][ T254] worker_thread+0x587/0xd30 [ 6201.682531][ T254] kthread+0x28a/0x350 [ 6201.682531][ T254] ret_from_fork+0x31/0x70 [ 6201.682531][ T254] ret_from_fork_asm+0x1a/0x30 [ 6201.682531][ T254] [ 6201.684669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.684669][ T254] netdev_get_by_index+0x5e/0x80 [ 6201.684669][ T254] fib6_nh_init+0x3d8/0x1580 [ 6201.684669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6201.684669][ T254] ip6_route_add+0x1c/0x140 [ 6201.684669][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6201.684669][ T254] inet6_addr_add+0x4f8/0xa40 [ 6201.684669][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6201.684669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6201.684669][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.684669][ T254] netlink_unicast+0x449/0x710 [ 6201.684669][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.684669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.684669][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.684669][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.684669][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.684669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6201.684669][ T254] [ 6201.687825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.687825][ T254] netdev_get_by_index+0x5e/0x80 [ 6201.687825][ T254] fib6_nh_init+0x3d8/0x1580 [ 6201.687825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6201.687825][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6201.687825][ T254] ipv6_add_addr+0x411/0x2000 [ 6201.687825][ T254] inet6_addr_add+0x30e/0xa40 [ 6201.687825][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6201.687825][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6201.687825][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.687825][ T254] netlink_unicast+0x449/0x710 [ 6201.687825][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.687825][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.687825][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.687825][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.687825][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.687825][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6201.687825][ T254] [ 6201.690068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.690068][ T254] netdev_get_by_index+0x5e/0x80 [ 6201.690068][ T254] fib6_nh_init+0x3d8/0x1580 [ 6201.690068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6201.690068][ T254] ip6_route_add+0x1c/0x140 [ 6201.690068][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6201.690068][ T254] addrconf_add_dev+0xe2/0x170 [ 6201.690068][ T254] inet6_addr_add+0x12f/0xa40 [ 6201.690068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6201.690068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6201.690068][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.690068][ T254] netlink_unicast+0x449/0x710 [ 6201.690068][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.690068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.690068][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.690068][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.690068][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.690068][ T254] [ 6201.692257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.692257][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6201.692257][ T254] ipv6_find_idev+0x102/0x170 [ 6201.692257][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6201.692257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6201.692257][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.692257][ T254] netlink_unicast+0x449/0x710 [ 6201.692257][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.692257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.692257][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.692257][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.692257][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.692257][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6201.692257][ T254] [ 6201.693973][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6201.693973][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6201.693973][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6201.693973][ T254] ipv6_find_idev+0x102/0x170 [ 6201.693973][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6201.693973][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6201.693973][ T254] netlink_rcv_skb+0x130/0x360 [ 6201.693973][ T254] netlink_unicast+0x449/0x710 [ 6201.693973][ T254] netlink_sendmsg+0x723/0xbe0 [ 6201.693973][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6201.693973][ T254] ___sys_sendmsg+0xee/0x170 [ 6201.693973][ T254] __sys_sendmsg+0xcd/0x170 [ 6201.693973][ T254] do_syscall_64+0xc6/0x1e0 [ 6201.693973][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6201.693973][ T254] [ 6211.935878][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6211.936357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.936357][ T254] dst_init+0x84/0x4a0 [ 6211.936357][ T254] dst_alloc+0x97/0x150 [ 6211.936357][ T254] ip6_dst_alloc+0x23/0x90 [ 6211.936357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6211.936357][ T254] ip6_pol_route+0x56f/0x840 [ 6211.936357][ T254] fib6_rule_lookup+0x334/0x630 [ 6211.936357][ T254] ip6_route_output_flags+0x259/0x480 [ 6211.936357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6211.936357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6211.936357][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.936357][ T254] netlink_unicast+0x449/0x710 [ 6211.936357][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.936357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.936357][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.936357][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.936357][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.936357][ T254] [ 6211.938563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.938563][ T254] netdev_get_by_index+0x5e/0x80 [ 6211.938563][ T254] fib6_nh_init+0x3d8/0x1580 [ 6211.938563][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6211.938563][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6211.938563][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6211.938563][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6211.938563][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6211.938563][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6211.938563][ T254] addrconf_dad_begin+0x310/0x670 [ 6211.938563][ T254] addrconf_dad_work+0x10b/0xab0 [ 6211.938563][ T254] process_one_work+0x84d/0x18a0 [ 6211.938563][ T254] worker_thread+0x587/0xd30 [ 6211.938563][ T254] kthread+0x28a/0x350 [ 6211.938563][ T254] ret_from_fork+0x31/0x70 [ 6211.938563][ T254] ret_from_fork_asm+0x1a/0x30 [ 6211.938563][ T254] [ 6211.940705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.940705][ T254] netdev_get_by_index+0x5e/0x80 [ 6211.940705][ T254] fib6_nh_init+0x3d8/0x1580 [ 6211.940705][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6211.940705][ T254] ip6_route_add+0x1c/0x140 [ 6211.940705][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6211.940705][ T254] inet6_addr_add+0x4f8/0xa40 [ 6211.940705][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6211.940705][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6211.940705][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.940705][ T254] netlink_unicast+0x449/0x710 [ 6211.940705][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.940705][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.940705][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.940705][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.940705][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.940705][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6211.940705][ T254] [ 6211.942940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.942940][ T254] netdev_get_by_index+0x5e/0x80 [ 6211.942940][ T254] fib6_nh_init+0x3d8/0x1580 [ 6211.942940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6211.942940][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6211.942940][ T254] ipv6_add_addr+0x411/0x2000 [ 6211.942940][ T254] inet6_addr_add+0x30e/0xa40 [ 6211.942940][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6211.942940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6211.942940][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.942940][ T254] netlink_unicast+0x449/0x710 [ 6211.942940][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.942940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.942940][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.942940][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.942940][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.942940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6211.942940][ T254] [ 6211.945178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.945178][ T254] netdev_get_by_index+0x5e/0x80 [ 6211.945178][ T254] fib6_nh_init+0x3d8/0x1580 [ 6211.945178][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6211.945178][ T254] ip6_route_add+0x1c/0x140 [ 6211.945178][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6211.945178][ T254] addrconf_add_dev+0xe2/0x170 [ 6211.945178][ T254] inet6_addr_add+0x12f/0xa40 [ 6211.945178][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6211.945178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6211.945178][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.945178][ T254] netlink_unicast+0x449/0x710 [ 6211.945178][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.945178][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.945178][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.945178][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.945178][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.945178][ T254] [ 6211.947366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.947366][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6211.947366][ T254] ipv6_find_idev+0x102/0x170 [ 6211.947366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6211.947366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6211.947366][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.947366][ T254] netlink_unicast+0x449/0x710 [ 6211.947366][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.947366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.947366][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.947366][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.947366][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.947366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6211.947366][ T254] [ 6211.949092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6211.949092][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6211.949092][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6211.949092][ T254] ipv6_find_idev+0x102/0x170 [ 6211.949092][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6211.949092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6211.949092][ T254] netlink_rcv_skb+0x130/0x360 [ 6211.949092][ T254] netlink_unicast+0x449/0x710 [ 6211.949092][ T254] netlink_sendmsg+0x723/0xbe0 [ 6211.949092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6211.949092][ T254] ___sys_sendmsg+0xee/0x170 [ 6211.949092][ T254] __sys_sendmsg+0xcd/0x170 [ 6211.949092][ T254] do_syscall_64+0xc6/0x1e0 [ 6211.949092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6211.949092][ T254] [ 6222.055859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6222.056278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.056278][ T254] dst_init+0x84/0x4a0 [ 6222.056278][ T254] dst_alloc+0x97/0x150 [ 6222.056278][ T254] ip6_dst_alloc+0x23/0x90 [ 6222.056278][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6222.056278][ T254] ip6_pol_route+0x56f/0x840 [ 6222.056278][ T254] fib6_rule_lookup+0x334/0x630 [ 6222.056278][ T254] ip6_route_output_flags+0x259/0x480 [ 6222.056278][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6222.056278][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6222.056278][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.056278][ T254] netlink_unicast+0x449/0x710 [ 6222.056278][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.056278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.056278][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.056278][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.056278][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.056278][ T254] [ 6222.058478][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.058478][ T254] netdev_get_by_index+0x5e/0x80 [ 6222.058478][ T254] fib6_nh_init+0x3d8/0x1580 [ 6222.058478][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6222.058478][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6222.058478][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6222.058478][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6222.058478][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6222.058478][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6222.058478][ T254] addrconf_dad_begin+0x310/0x670 [ 6222.058478][ T254] addrconf_dad_work+0x10b/0xab0 [ 6222.058478][ T254] process_one_work+0x84d/0x18a0 [ 6222.058478][ T254] worker_thread+0x587/0xd30 [ 6222.058478][ T254] kthread+0x28a/0x350 [ 6222.058478][ T254] ret_from_fork+0x31/0x70 [ 6222.058478][ T254] ret_from_fork_asm+0x1a/0x30 [ 6222.058478][ T254] [ 6222.061025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.061025][ T254] netdev_get_by_index+0x5e/0x80 [ 6222.061025][ T254] fib6_nh_init+0x3d8/0x1580 [ 6222.061025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6222.061025][ T254] ip6_route_add+0x1c/0x140 [ 6222.061025][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6222.061025][ T254] inet6_addr_add+0x4f8/0xa40 [ 6222.061025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6222.061025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6222.061025][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.061025][ T254] netlink_unicast+0x449/0x710 [ 6222.061025][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.061025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.061025][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.061025][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.061025][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.061025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6222.061025][ T254] [ 6222.063262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.063262][ T254] netdev_get_by_index+0x5e/0x80 [ 6222.063262][ T254] fib6_nh_init+0x3d8/0x1580 [ 6222.063262][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6222.063262][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6222.063262][ T254] ipv6_add_addr+0x411/0x2000 [ 6222.063262][ T254] inet6_addr_add+0x30e/0xa40 [ 6222.063262][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6222.063262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6222.063262][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.063262][ T254] netlink_unicast+0x449/0x710 [ 6222.063262][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.063262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.063262][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.063262][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.063262][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.063262][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6222.063262][ T254] [ 6222.065499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.065499][ T254] netdev_get_by_index+0x5e/0x80 [ 6222.065499][ T254] fib6_nh_init+0x3d8/0x1580 [ 6222.065499][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6222.065499][ T254] ip6_route_add+0x1c/0x140 [ 6222.065499][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6222.065499][ T254] addrconf_add_dev+0xe2/0x170 [ 6222.065499][ T254] inet6_addr_add+0x12f/0xa40 [ 6222.065499][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6222.065499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6222.065499][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.065499][ T254] netlink_unicast+0x449/0x710 [ 6222.065499][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.065499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.065499][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.065499][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.065499][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.065499][ T254] [ 6222.067691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.067691][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6222.067691][ T254] ipv6_find_idev+0x102/0x170 [ 6222.067691][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6222.067691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6222.067691][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.067691][ T254] netlink_unicast+0x449/0x710 [ 6222.067691][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.067691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.067691][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.067691][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.067691][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.067691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6222.067691][ T254] [ 6222.069437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6222.069437][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6222.069437][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6222.069437][ T254] ipv6_find_idev+0x102/0x170 [ 6222.069437][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6222.069437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6222.069437][ T254] netlink_rcv_skb+0x130/0x360 [ 6222.069437][ T254] netlink_unicast+0x449/0x710 [ 6222.069437][ T254] netlink_sendmsg+0x723/0xbe0 [ 6222.069437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6222.069437][ T254] ___sys_sendmsg+0xee/0x170 [ 6222.069437][ T254] __sys_sendmsg+0xcd/0x170 [ 6222.069437][ T254] do_syscall_64+0xc6/0x1e0 [ 6222.069437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6222.069437][ T254] [ 6232.095796][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6232.096303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.096303][ T254] dst_init+0x84/0x4a0 [ 6232.096303][ T254] dst_alloc+0x97/0x150 [ 6232.096303][ T254] ip6_dst_alloc+0x23/0x90 [ 6232.096303][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6232.096303][ T254] ip6_pol_route+0x56f/0x840 [ 6232.096303][ T254] fib6_rule_lookup+0x334/0x630 [ 6232.096303][ T254] ip6_route_output_flags+0x259/0x480 [ 6232.096303][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6232.096303][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6232.096303][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.096303][ T254] netlink_unicast+0x449/0x710 [ 6232.096303][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.096303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.096303][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.096303][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.096303][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.096303][ T254] [ 6232.098650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.098650][ T254] netdev_get_by_index+0x5e/0x80 [ 6232.098650][ T254] fib6_nh_init+0x3d8/0x1580 [ 6232.098650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6232.098650][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6232.098650][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6232.098650][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6232.098650][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6232.098650][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6232.098650][ T254] addrconf_dad_begin+0x310/0x670 [ 6232.098650][ T254] addrconf_dad_work+0x10b/0xab0 [ 6232.098650][ T254] process_one_work+0x84d/0x18a0 [ 6232.098650][ T254] worker_thread+0x587/0xd30 [ 6232.098650][ T254] kthread+0x28a/0x350 [ 6232.098650][ T254] ret_from_fork+0x31/0x70 [ 6232.098650][ T254] ret_from_fork_asm+0x1a/0x30 [ 6232.098650][ T254] [ 6232.100816][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.100816][ T254] netdev_get_by_index+0x5e/0x80 [ 6232.100816][ T254] fib6_nh_init+0x3d8/0x1580 [ 6232.100816][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6232.100816][ T254] ip6_route_add+0x1c/0x140 [ 6232.100816][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6232.100816][ T254] inet6_addr_add+0x4f8/0xa40 [ 6232.100816][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6232.100816][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6232.100816][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.100816][ T254] netlink_unicast+0x449/0x710 [ 6232.100816][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.100816][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.100816][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.100816][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.100816][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.100816][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6232.100816][ T254] [ 6232.103080][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.103080][ T254] netdev_get_by_index+0x5e/0x80 [ 6232.103080][ T254] fib6_nh_init+0x3d8/0x1580 [ 6232.103080][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6232.103080][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6232.103080][ T254] ipv6_add_addr+0x411/0x2000 [ 6232.103080][ T254] inet6_addr_add+0x30e/0xa40 [ 6232.103080][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6232.103080][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6232.103080][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.103080][ T254] netlink_unicast+0x449/0x710 [ 6232.103080][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.103080][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.103080][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.103080][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.103080][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.103080][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6232.103080][ T254] [ 6232.105336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.105336][ T254] netdev_get_by_index+0x5e/0x80 [ 6232.105336][ T254] fib6_nh_init+0x3d8/0x1580 [ 6232.105336][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6232.105336][ T254] ip6_route_add+0x1c/0x140 [ 6232.105336][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6232.105336][ T254] addrconf_add_dev+0xe2/0x170 [ 6232.105336][ T254] inet6_addr_add+0x12f/0xa40 [ 6232.105336][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6232.105336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6232.105336][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.105336][ T254] netlink_unicast+0x449/0x710 [ 6232.105336][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.105336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.105336][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.105336][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.105336][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.105336][ T254] [ 6232.107566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.107566][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6232.107566][ T254] ipv6_find_idev+0x102/0x170 [ 6232.107566][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6232.107566][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6232.107566][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.107566][ T254] netlink_unicast+0x449/0x710 [ 6232.107566][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.107566][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.107566][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.107566][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.107566][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.107566][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6232.107566][ T254] [ 6232.109318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6232.109318][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6232.109318][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6232.109318][ T254] ipv6_find_idev+0x102/0x170 [ 6232.109318][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6232.109318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6232.109318][ T254] netlink_rcv_skb+0x130/0x360 [ 6232.109318][ T254] netlink_unicast+0x449/0x710 [ 6232.109318][ T254] netlink_sendmsg+0x723/0xbe0 [ 6232.109318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6232.109318][ T254] ___sys_sendmsg+0xee/0x170 [ 6232.109318][ T254] __sys_sendmsg+0xcd/0x170 [ 6232.109318][ T254] do_syscall_64+0xc6/0x1e0 [ 6232.109318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6232.109318][ T254] [ 6242.351867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6242.352360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.352360][ T254] dst_init+0x84/0x4a0 [ 6242.352360][ T254] dst_alloc+0x97/0x150 [ 6242.352360][ T254] ip6_dst_alloc+0x23/0x90 [ 6242.352360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6242.352360][ T254] ip6_pol_route+0x56f/0x840 [ 6242.352360][ T254] fib6_rule_lookup+0x334/0x630 [ 6242.352360][ T254] ip6_route_output_flags+0x259/0x480 [ 6242.352360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6242.352360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6242.352360][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.352360][ T254] netlink_unicast+0x449/0x710 [ 6242.352360][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.352360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.352360][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.352360][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.352360][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.352360][ T254] [ 6242.354574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.354574][ T254] netdev_get_by_index+0x5e/0x80 [ 6242.354574][ T254] fib6_nh_init+0x3d8/0x1580 [ 6242.354574][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6242.354574][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6242.354574][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6242.354574][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6242.354574][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6242.354574][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6242.354574][ T254] addrconf_dad_begin+0x310/0x670 [ 6242.354574][ T254] addrconf_dad_work+0x10b/0xab0 [ 6242.354574][ T254] process_one_work+0x84d/0x18a0 [ 6242.354574][ T254] worker_thread+0x587/0xd30 [ 6242.354574][ T254] kthread+0x28a/0x350 [ 6242.354574][ T254] ret_from_fork+0x31/0x70 [ 6242.354574][ T254] ret_from_fork_asm+0x1a/0x30 [ 6242.354574][ T254] [ 6242.356739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.356739][ T254] netdev_get_by_index+0x5e/0x80 [ 6242.356739][ T254] fib6_nh_init+0x3d8/0x1580 [ 6242.356739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6242.356739][ T254] ip6_route_add+0x1c/0x140 [ 6242.356739][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6242.356739][ T254] inet6_addr_add+0x4f8/0xa40 [ 6242.356739][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6242.356739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6242.356739][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.356739][ T254] netlink_unicast+0x449/0x710 [ 6242.356739][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.356739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.356739][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.356739][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.356739][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.356739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6242.356739][ T254] [ 6242.359007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.359007][ T254] netdev_get_by_index+0x5e/0x80 [ 6242.359007][ T254] fib6_nh_init+0x3d8/0x1580 [ 6242.359007][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6242.359007][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6242.359007][ T254] ipv6_add_addr+0x411/0x2000 [ 6242.359007][ T254] inet6_addr_add+0x30e/0xa40 [ 6242.359007][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6242.359007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6242.359007][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.359007][ T254] netlink_unicast+0x449/0x710 [ 6242.359007][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.359007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.359007][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.359007][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.359007][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.359007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6242.359007][ T254] [ 6242.361270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.361270][ T254] netdev_get_by_index+0x5e/0x80 [ 6242.361270][ T254] fib6_nh_init+0x3d8/0x1580 [ 6242.361270][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6242.361270][ T254] ip6_route_add+0x1c/0x140 [ 6242.361270][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6242.361270][ T254] addrconf_add_dev+0xe2/0x170 [ 6242.361270][ T254] inet6_addr_add+0x12f/0xa40 [ 6242.361270][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6242.361270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6242.361270][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.361270][ T254] netlink_unicast+0x449/0x710 [ 6242.361270][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.361270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.361270][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.361270][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.361270][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.361270][ T254] [ 6242.363496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.363496][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6242.363496][ T254] ipv6_find_idev+0x102/0x170 [ 6242.363496][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6242.363496][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6242.363496][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.363496][ T254] netlink_unicast+0x449/0x710 [ 6242.363496][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.363496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.363496][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.363496][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.363496][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.363496][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6242.363496][ T254] [ 6242.365250][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6242.365250][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6242.365250][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6242.365250][ T254] ipv6_find_idev+0x102/0x170 [ 6242.365250][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6242.365250][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6242.365250][ T254] netlink_rcv_skb+0x130/0x360 [ 6242.365250][ T254] netlink_unicast+0x449/0x710 [ 6242.365250][ T254] netlink_sendmsg+0x723/0xbe0 [ 6242.365250][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6242.365250][ T254] ___sys_sendmsg+0xee/0x170 [ 6242.365250][ T254] __sys_sendmsg+0xcd/0x170 [ 6242.365250][ T254] do_syscall_64+0xc6/0x1e0 [ 6242.365250][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6242.365250][ T254] [ 6252.607863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6252.608411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.608411][ T254] dst_init+0x84/0x4a0 [ 6252.608411][ T254] dst_alloc+0x97/0x150 [ 6252.608411][ T254] ip6_dst_alloc+0x23/0x90 [ 6252.608411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6252.608411][ T254] ip6_pol_route+0x56f/0x840 [ 6252.608411][ T254] fib6_rule_lookup+0x334/0x630 [ 6252.608411][ T254] ip6_route_output_flags+0x259/0x480 [ 6252.608411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6252.608411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6252.608411][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.608411][ T254] netlink_unicast+0x449/0x710 [ 6252.608411][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.608411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.608411][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.608411][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.608411][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.608411][ T254] [ 6252.610624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.610624][ T254] netdev_get_by_index+0x5e/0x80 [ 6252.610624][ T254] fib6_nh_init+0x3d8/0x1580 [ 6252.610624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6252.610624][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6252.610624][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6252.610624][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6252.610624][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6252.610624][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6252.610624][ T254] addrconf_dad_begin+0x310/0x670 [ 6252.610624][ T254] addrconf_dad_work+0x10b/0xab0 [ 6252.610624][ T254] process_one_work+0x84d/0x18a0 [ 6252.610624][ T254] worker_thread+0x587/0xd30 [ 6252.610624][ T254] kthread+0x28a/0x350 [ 6252.610624][ T254] ret_from_fork+0x31/0x70 [ 6252.610624][ T254] ret_from_fork_asm+0x1a/0x30 [ 6252.610624][ T254] [ 6252.612789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.612789][ T254] netdev_get_by_index+0x5e/0x80 [ 6252.612789][ T254] fib6_nh_init+0x3d8/0x1580 [ 6252.612789][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6252.612789][ T254] ip6_route_add+0x1c/0x140 [ 6252.612789][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6252.612789][ T254] inet6_addr_add+0x4f8/0xa40 [ 6252.612789][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6252.612789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6252.612789][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.612789][ T254] netlink_unicast+0x449/0x710 [ 6252.612789][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.612789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.612789][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.612789][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.612789][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.612789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6252.612789][ T254] [ 6252.615047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.615047][ T254] netdev_get_by_index+0x5e/0x80 [ 6252.615047][ T254] fib6_nh_init+0x3d8/0x1580 [ 6252.615047][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6252.615047][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6252.615047][ T254] ipv6_add_addr+0x411/0x2000 [ 6252.615047][ T254] inet6_addr_add+0x30e/0xa40 [ 6252.615047][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6252.615047][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6252.615047][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.615047][ T254] netlink_unicast+0x449/0x710 [ 6252.615047][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.615047][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.615047][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.615047][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.615047][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.615047][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6252.615047][ T254] [ 6252.617306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.617306][ T254] netdev_get_by_index+0x5e/0x80 [ 6252.617306][ T254] fib6_nh_init+0x3d8/0x1580 [ 6252.617306][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6252.617306][ T254] ip6_route_add+0x1c/0x140 [ 6252.617306][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6252.617306][ T254] addrconf_add_dev+0xe2/0x170 [ 6252.617306][ T254] inet6_addr_add+0x12f/0xa40 [ 6252.617306][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6252.617306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6252.617306][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.617306][ T254] netlink_unicast+0x449/0x710 [ 6252.617306][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.617306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.617306][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.617306][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.617306][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.617306][ T254] [ 6252.619527][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.619527][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6252.619527][ T254] ipv6_find_idev+0x102/0x170 [ 6252.619527][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6252.619527][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6252.619527][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.619527][ T254] netlink_unicast+0x449/0x710 [ 6252.619527][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.619527][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.619527][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.619527][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.619527][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.619527][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6252.619527][ T254] [ 6252.621273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6252.621273][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6252.621273][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6252.621273][ T254] ipv6_find_idev+0x102/0x170 [ 6252.621273][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6252.621273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6252.621273][ T254] netlink_rcv_skb+0x130/0x360 [ 6252.621273][ T254] netlink_unicast+0x449/0x710 [ 6252.621273][ T254] netlink_sendmsg+0x723/0xbe0 [ 6252.621273][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6252.621273][ T254] ___sys_sendmsg+0xee/0x170 [ 6252.621273][ T254] __sys_sendmsg+0xcd/0x170 [ 6252.621273][ T254] do_syscall_64+0xc6/0x1e0 [ 6252.621273][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6252.621273][ T254] [ 6262.863865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6262.864349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.864349][ T254] dst_init+0x84/0x4a0 [ 6262.864349][ T254] dst_alloc+0x97/0x150 [ 6262.864349][ T254] ip6_dst_alloc+0x23/0x90 [ 6262.864349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6262.864349][ T254] ip6_pol_route+0x56f/0x840 [ 6262.864349][ T254] fib6_rule_lookup+0x334/0x630 [ 6262.864349][ T254] ip6_route_output_flags+0x259/0x480 [ 6262.864349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6262.864349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6262.864349][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.864349][ T254] netlink_unicast+0x449/0x710 [ 6262.864349][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.864349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.864349][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.864349][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.864349][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.864349][ T254] [ 6262.866565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.866565][ T254] netdev_get_by_index+0x5e/0x80 [ 6262.866565][ T254] fib6_nh_init+0x3d8/0x1580 [ 6262.866565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6262.866565][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6262.866565][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6262.866565][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6262.866565][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6262.866565][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6262.866565][ T254] addrconf_dad_begin+0x310/0x670 [ 6262.866565][ T254] addrconf_dad_work+0x10b/0xab0 [ 6262.866565][ T254] process_one_work+0x84d/0x18a0 [ 6262.866565][ T254] worker_thread+0x587/0xd30 [ 6262.866565][ T254] kthread+0x28a/0x350 [ 6262.866565][ T254] ret_from_fork+0x31/0x70 [ 6262.866565][ T254] ret_from_fork_asm+0x1a/0x30 [ 6262.866565][ T254] [ 6262.868751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.868751][ T254] netdev_get_by_index+0x5e/0x80 [ 6262.868751][ T254] fib6_nh_init+0x3d8/0x1580 [ 6262.868751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6262.868751][ T254] ip6_route_add+0x1c/0x140 [ 6262.868751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6262.868751][ T254] inet6_addr_add+0x4f8/0xa40 [ 6262.868751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6262.868751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6262.868751][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.868751][ T254] netlink_unicast+0x449/0x710 [ 6262.868751][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.868751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.868751][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.868751][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.868751][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.868751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6262.868751][ T254] [ 6262.871013][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.871013][ T254] netdev_get_by_index+0x5e/0x80 [ 6262.871013][ T254] fib6_nh_init+0x3d8/0x1580 [ 6262.871013][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6262.871013][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6262.871013][ T254] ipv6_add_addr+0x411/0x2000 [ 6262.871013][ T254] inet6_addr_add+0x30e/0xa40 [ 6262.871013][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6262.871013][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6262.871013][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.871013][ T254] netlink_unicast+0x449/0x710 [ 6262.871013][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.871013][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.871013][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.871013][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.871013][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.871013][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6262.871013][ T254] [ 6262.873272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.873272][ T254] netdev_get_by_index+0x5e/0x80 [ 6262.873272][ T254] fib6_nh_init+0x3d8/0x1580 [ 6262.873272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6262.873272][ T254] ip6_route_add+0x1c/0x140 [ 6262.873272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6262.873272][ T254] addrconf_add_dev+0xe2/0x170 [ 6262.873272][ T254] inet6_addr_add+0x12f/0xa40 [ 6262.873272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6262.873272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6262.873272][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.873272][ T254] netlink_unicast+0x449/0x710 [ 6262.873272][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.873272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.873272][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.873272][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.873272][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.873272][ T254] [ 6262.875507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.875507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6262.875507][ T254] ipv6_find_idev+0x102/0x170 [ 6262.875507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6262.875507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6262.875507][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.875507][ T254] netlink_unicast+0x449/0x710 [ 6262.875507][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.875507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.875507][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.875507][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.875507][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.875507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6262.875507][ T254] [ 6262.877245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6262.877245][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6262.877245][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6262.877245][ T254] ipv6_find_idev+0x102/0x170 [ 6262.877245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6262.877245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6262.877245][ T254] netlink_rcv_skb+0x130/0x360 [ 6262.877245][ T254] netlink_unicast+0x449/0x710 [ 6262.877245][ T254] netlink_sendmsg+0x723/0xbe0 [ 6262.877245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6262.877245][ T254] ___sys_sendmsg+0xee/0x170 [ 6262.877245][ T254] __sys_sendmsg+0xcd/0x170 [ 6262.877245][ T254] do_syscall_64+0xc6/0x1e0 [ 6262.877245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6262.877245][ T254] [ 6273.119854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6273.120373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.120373][ T254] dst_init+0x84/0x4a0 [ 6273.120373][ T254] dst_alloc+0x97/0x150 [ 6273.120373][ T254] ip6_dst_alloc+0x23/0x90 [ 6273.120373][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6273.120373][ T254] ip6_pol_route+0x56f/0x840 [ 6273.120373][ T254] fib6_rule_lookup+0x334/0x630 [ 6273.120373][ T254] ip6_route_output_flags+0x259/0x480 [ 6273.120373][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6273.120373][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6273.120373][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.120373][ T254] netlink_unicast+0x449/0x710 [ 6273.120373][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.120373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.120373][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.120373][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.120373][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.120373][ T254] [ 6273.122668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.122668][ T254] netdev_get_by_index+0x5e/0x80 [ 6273.122668][ T254] fib6_nh_init+0x3d8/0x1580 [ 6273.122668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6273.122668][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6273.122668][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6273.122668][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6273.122668][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6273.122668][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6273.122668][ T254] addrconf_dad_begin+0x310/0x670 [ 6273.122668][ T254] addrconf_dad_work+0x10b/0xab0 [ 6273.122668][ T254] process_one_work+0x84d/0x18a0 [ 6273.122668][ T254] worker_thread+0x587/0xd30 [ 6273.122668][ T254] kthread+0x28a/0x350 [ 6273.122668][ T254] ret_from_fork+0x31/0x70 [ 6273.122668][ T254] ret_from_fork_asm+0x1a/0x30 [ 6273.122668][ T254] [ 6273.124832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.124832][ T254] netdev_get_by_index+0x5e/0x80 [ 6273.124832][ T254] fib6_nh_init+0x3d8/0x1580 [ 6273.124832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6273.124832][ T254] ip6_route_add+0x1c/0x140 [ 6273.124832][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6273.124832][ T254] inet6_addr_add+0x4f8/0xa40 [ 6273.124832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6273.124832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6273.124832][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.124832][ T254] netlink_unicast+0x449/0x710 [ 6273.124832][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.124832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.124832][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.124832][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.124832][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.124832][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6273.124832][ T254] [ 6273.127092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.127092][ T254] netdev_get_by_index+0x5e/0x80 [ 6273.127092][ T254] fib6_nh_init+0x3d8/0x1580 [ 6273.127092][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6273.127092][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6273.127092][ T254] ipv6_add_addr+0x411/0x2000 [ 6273.127092][ T254] inet6_addr_add+0x30e/0xa40 [ 6273.127092][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6273.127092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6273.127092][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.127092][ T254] netlink_unicast+0x449/0x710 [ 6273.127092][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.127092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.127092][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.127092][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.127092][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.127092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6273.127092][ T254] [ 6273.129380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.129380][ T254] netdev_get_by_index+0x5e/0x80 [ 6273.129380][ T254] fib6_nh_init+0x3d8/0x1580 [ 6273.129380][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6273.129380][ T254] ip6_route_add+0x1c/0x140 [ 6273.129380][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6273.129380][ T254] addrconf_add_dev+0xe2/0x170 [ 6273.129380][ T254] inet6_addr_add+0x12f/0xa40 [ 6273.129380][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6273.129380][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6273.129380][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.129380][ T254] netlink_unicast+0x449/0x710 [ 6273.129380][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.129380][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.129380][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.129380][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.129380][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.129380][ T254] [ 6273.131594][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.131594][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6273.131594][ T254] ipv6_find_idev+0x102/0x170 [ 6273.131594][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6273.131594][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6273.131594][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.131594][ T254] netlink_unicast+0x449/0x710 [ 6273.131594][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.131594][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.131594][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.131594][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.131594][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.131594][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6273.131594][ T254] [ 6273.133344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6273.133344][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6273.133344][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6273.133344][ T254] ipv6_find_idev+0x102/0x170 [ 6273.133344][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6273.133344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6273.133344][ T254] netlink_rcv_skb+0x130/0x360 [ 6273.133344][ T254] netlink_unicast+0x449/0x710 [ 6273.133344][ T254] netlink_sendmsg+0x723/0xbe0 [ 6273.133344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6273.133344][ T254] ___sys_sendmsg+0xee/0x170 [ 6273.133344][ T254] __sys_sendmsg+0xcd/0x170 [ 6273.133344][ T254] do_syscall_64+0xc6/0x1e0 [ 6273.133344][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6273.133344][ T254] [ 6283.375893][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6283.376385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.376385][ T254] dst_init+0x84/0x4a0 [ 6283.376385][ T254] dst_alloc+0x97/0x150 [ 6283.376385][ T254] ip6_dst_alloc+0x23/0x90 [ 6283.376385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6283.376385][ T254] ip6_pol_route+0x56f/0x840 [ 6283.376385][ T254] fib6_rule_lookup+0x334/0x630 [ 6283.376385][ T254] ip6_route_output_flags+0x259/0x480 [ 6283.376385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6283.376385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6283.376385][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.376385][ T254] netlink_unicast+0x449/0x710 [ 6283.376385][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.376385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.376385][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.376385][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.376385][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.376385][ T254] [ 6283.378617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.378617][ T254] netdev_get_by_index+0x5e/0x80 [ 6283.378617][ T254] fib6_nh_init+0x3d8/0x1580 [ 6283.378617][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6283.378617][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6283.378617][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6283.378617][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6283.378617][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6283.378617][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6283.378617][ T254] addrconf_dad_begin+0x310/0x670 [ 6283.378617][ T254] addrconf_dad_work+0x10b/0xab0 [ 6283.378617][ T254] process_one_work+0x84d/0x18a0 [ 6283.378617][ T254] worker_thread+0x587/0xd30 [ 6283.378617][ T254] kthread+0x28a/0x350 [ 6283.378617][ T254] ret_from_fork+0x31/0x70 [ 6283.378617][ T254] ret_from_fork_asm+0x1a/0x30 [ 6283.378617][ T254] [ 6283.380781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.380781][ T254] netdev_get_by_index+0x5e/0x80 [ 6283.380781][ T254] fib6_nh_init+0x3d8/0x1580 [ 6283.380781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6283.380781][ T254] ip6_route_add+0x1c/0x140 [ 6283.380781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6283.380781][ T254] inet6_addr_add+0x4f8/0xa40 [ 6283.380781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6283.380781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6283.380781][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.380781][ T254] netlink_unicast+0x449/0x710 [ 6283.380781][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.380781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.380781][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.380781][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.380781][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.380781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6283.380781][ T254] [ 6283.383045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.383045][ T254] netdev_get_by_index+0x5e/0x80 [ 6283.383045][ T254] fib6_nh_init+0x3d8/0x1580 [ 6283.383045][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6283.383045][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6283.383045][ T254] ipv6_add_addr+0x411/0x2000 [ 6283.383045][ T254] inet6_addr_add+0x30e/0xa40 [ 6283.383045][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6283.383045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6283.383045][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.383045][ T254] netlink_unicast+0x449/0x710 [ 6283.383045][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.383045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.383045][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.383045][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.383045][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.383045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6283.383045][ T254] [ 6283.385307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.385307][ T254] netdev_get_by_index+0x5e/0x80 [ 6283.385307][ T254] fib6_nh_init+0x3d8/0x1580 [ 6283.385307][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6283.385307][ T254] ip6_route_add+0x1c/0x140 [ 6283.385307][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6283.385307][ T254] addrconf_add_dev+0xe2/0x170 [ 6283.385307][ T254] inet6_addr_add+0x12f/0xa40 [ 6283.385307][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6283.385307][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6283.385307][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.385307][ T254] netlink_unicast+0x449/0x710 [ 6283.385307][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.385307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.385307][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.385307][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.385307][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.385307][ T254] [ 6283.387529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.387529][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6283.387529][ T254] ipv6_find_idev+0x102/0x170 [ 6283.387529][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6283.387529][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6283.387529][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.387529][ T254] netlink_unicast+0x449/0x710 [ 6283.387529][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.387529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.387529][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.387529][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.387529][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.387529][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6283.387529][ T254] [ 6283.389271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6283.389271][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6283.389271][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6283.389271][ T254] ipv6_find_idev+0x102/0x170 [ 6283.389271][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6283.389271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6283.389271][ T254] netlink_rcv_skb+0x130/0x360 [ 6283.389271][ T254] netlink_unicast+0x449/0x710 [ 6283.389271][ T254] netlink_sendmsg+0x723/0xbe0 [ 6283.389271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6283.389271][ T254] ___sys_sendmsg+0xee/0x170 [ 6283.389271][ T254] __sys_sendmsg+0xcd/0x170 [ 6283.389271][ T254] do_syscall_64+0xc6/0x1e0 [ 6283.389271][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6283.389271][ T254] [ 6293.631869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6293.632351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.632351][ T254] dst_init+0x84/0x4a0 [ 6293.632351][ T254] dst_alloc+0x97/0x150 [ 6293.632351][ T254] ip6_dst_alloc+0x23/0x90 [ 6293.632351][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6293.632351][ T254] ip6_pol_route+0x56f/0x840 [ 6293.632351][ T254] fib6_rule_lookup+0x334/0x630 [ 6293.632351][ T254] ip6_route_output_flags+0x259/0x480 [ 6293.632351][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6293.632351][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6293.632351][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.632351][ T254] netlink_unicast+0x449/0x710 [ 6293.632351][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.632351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.632351][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.632351][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.632351][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.632351][ T254] [ 6293.634572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.634572][ T254] netdev_get_by_index+0x5e/0x80 [ 6293.634572][ T254] fib6_nh_init+0x3d8/0x1580 [ 6293.634572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6293.634572][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6293.634572][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6293.634572][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6293.634572][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6293.634572][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6293.634572][ T254] addrconf_dad_begin+0x310/0x670 [ 6293.634572][ T254] addrconf_dad_work+0x10b/0xab0 [ 6293.634572][ T254] process_one_work+0x84d/0x18a0 [ 6293.634572][ T254] worker_thread+0x587/0xd30 [ 6293.634572][ T254] kthread+0x28a/0x350 [ 6293.634572][ T254] ret_from_fork+0x31/0x70 [ 6293.634572][ T254] ret_from_fork_asm+0x1a/0x30 [ 6293.634572][ T254] [ 6293.636730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.636730][ T254] netdev_get_by_index+0x5e/0x80 [ 6293.636730][ T254] fib6_nh_init+0x3d8/0x1580 [ 6293.636730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6293.636730][ T254] ip6_route_add+0x1c/0x140 [ 6293.636730][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6293.636730][ T254] inet6_addr_add+0x4f8/0xa40 [ 6293.636730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6293.636730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6293.636730][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.636730][ T254] netlink_unicast+0x449/0x710 [ 6293.636730][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.636730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.636730][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.636730][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.636730][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.636730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6293.636730][ T254] [ 6293.639019][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.639019][ T254] netdev_get_by_index+0x5e/0x80 [ 6293.639019][ T254] fib6_nh_init+0x3d8/0x1580 [ 6293.639019][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6293.639019][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6293.639019][ T254] ipv6_add_addr+0x411/0x2000 [ 6293.639019][ T254] inet6_addr_add+0x30e/0xa40 [ 6293.639019][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6293.639019][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6293.639019][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.639019][ T254] netlink_unicast+0x449/0x710 [ 6293.639019][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.639019][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.639019][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.639019][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.639019][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.639019][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6293.639019][ T254] [ 6293.641271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.641271][ T254] netdev_get_by_index+0x5e/0x80 [ 6293.641271][ T254] fib6_nh_init+0x3d8/0x1580 [ 6293.641271][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6293.641271][ T254] ip6_route_add+0x1c/0x140 [ 6293.641271][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6293.641271][ T254] addrconf_add_dev+0xe2/0x170 [ 6293.641271][ T254] inet6_addr_add+0x12f/0xa40 [ 6293.641271][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6293.641271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6293.641271][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.641271][ T254] netlink_unicast+0x449/0x710 [ 6293.641271][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.641271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.641271][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.641271][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.641271][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.641271][ T254] [ 6293.643487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.643487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6293.643487][ T254] ipv6_find_idev+0x102/0x170 [ 6293.643487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6293.643487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6293.643487][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.643487][ T254] netlink_unicast+0x449/0x710 [ 6293.643487][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.643487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.643487][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.643487][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.643487][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.643487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6293.643487][ T254] [ 6293.645227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6293.645227][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6293.645227][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6293.645227][ T254] ipv6_find_idev+0x102/0x170 [ 6293.645227][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6293.645227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6293.645227][ T254] netlink_rcv_skb+0x130/0x360 [ 6293.645227][ T254] netlink_unicast+0x449/0x710 [ 6293.645227][ T254] netlink_sendmsg+0x723/0xbe0 [ 6293.645227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6293.645227][ T254] ___sys_sendmsg+0xee/0x170 [ 6293.645227][ T254] __sys_sendmsg+0xcd/0x170 [ 6293.645227][ T254] do_syscall_64+0xc6/0x1e0 [ 6293.645227][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6293.645227][ T254] [ 6303.887856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6303.888284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.888284][ T254] dst_init+0x84/0x4a0 [ 6303.888284][ T254] dst_alloc+0x97/0x150 [ 6303.888284][ T254] ip6_dst_alloc+0x23/0x90 [ 6303.888284][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6303.888284][ T254] ip6_pol_route+0x56f/0x840 [ 6303.888284][ T254] fib6_rule_lookup+0x334/0x630 [ 6303.888284][ T254] ip6_route_output_flags+0x259/0x480 [ 6303.888284][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6303.888284][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6303.888284][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.888284][ T254] netlink_unicast+0x449/0x710 [ 6303.888284][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.888284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.888284][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.888284][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.888284][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.888284][ T254] [ 6303.890473][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.890473][ T254] netdev_get_by_index+0x5e/0x80 [ 6303.890473][ T254] fib6_nh_init+0x3d8/0x1580 [ 6303.890473][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6303.890473][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6303.890473][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6303.890473][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6303.890473][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6303.890473][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6303.890473][ T254] addrconf_dad_begin+0x310/0x670 [ 6303.890473][ T254] addrconf_dad_work+0x10b/0xab0 [ 6303.890473][ T254] process_one_work+0x84d/0x18a0 [ 6303.890473][ T254] worker_thread+0x587/0xd30 [ 6303.890473][ T254] kthread+0x28a/0x350 [ 6303.890473][ T254] ret_from_fork+0x31/0x70 [ 6303.890473][ T254] ret_from_fork_asm+0x1a/0x30 [ 6303.890473][ T254] [ 6303.892607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.892607][ T254] netdev_get_by_index+0x5e/0x80 [ 6303.892607][ T254] fib6_nh_init+0x3d8/0x1580 [ 6303.892607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6303.892607][ T254] ip6_route_add+0x1c/0x140 [ 6303.892607][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6303.892607][ T254] inet6_addr_add+0x4f8/0xa40 [ 6303.892607][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6303.892607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6303.892607][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.892607][ T254] netlink_unicast+0x449/0x710 [ 6303.892607][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.892607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.892607][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.892607][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.892607][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.892607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6303.892607][ T254] [ 6303.894843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.894843][ T254] netdev_get_by_index+0x5e/0x80 [ 6303.894843][ T254] fib6_nh_init+0x3d8/0x1580 [ 6303.894843][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6303.894843][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6303.894843][ T254] ipv6_add_addr+0x411/0x2000 [ 6303.894843][ T254] inet6_addr_add+0x30e/0xa40 [ 6303.894843][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6303.894843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6303.894843][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.894843][ T254] netlink_unicast+0x449/0x710 [ 6303.894843][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.894843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.894843][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.894843][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.894843][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.894843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6303.894843][ T254] [ 6303.897096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.897096][ T254] netdev_get_by_index+0x5e/0x80 [ 6303.897096][ T254] fib6_nh_init+0x3d8/0x1580 [ 6303.897096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6303.897096][ T254] ip6_route_add+0x1c/0x140 [ 6303.897096][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6303.897096][ T254] addrconf_add_dev+0xe2/0x170 [ 6303.897096][ T254] inet6_addr_add+0x12f/0xa40 [ 6303.897096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6303.897096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6303.897096][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.897096][ T254] netlink_unicast+0x449/0x710 [ 6303.897096][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.897096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.897096][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.897096][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.897096][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.897096][ T254] [ 6303.899296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.899296][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6303.899296][ T254] ipv6_find_idev+0x102/0x170 [ 6303.899296][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6303.899296][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6303.899296][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.899296][ T254] netlink_unicast+0x449/0x710 [ 6303.899296][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.899296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.899296][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.899296][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.899296][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.899296][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6303.899296][ T254] [ 6303.901015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6303.901015][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6303.901015][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6303.901015][ T254] ipv6_find_idev+0x102/0x170 [ 6303.901015][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6303.901015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6303.901015][ T254] netlink_rcv_skb+0x130/0x360 [ 6303.901015][ T254] netlink_unicast+0x449/0x710 [ 6303.901015][ T254] netlink_sendmsg+0x723/0xbe0 [ 6303.901015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6303.901015][ T254] ___sys_sendmsg+0xee/0x170 [ 6303.901015][ T254] __sys_sendmsg+0xcd/0x170 [ 6303.901015][ T254] do_syscall_64+0xc6/0x1e0 [ 6303.901015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6303.901015][ T254] [ 6314.143863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6314.144292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.144292][ T254] dst_init+0x84/0x4a0 [ 6314.144292][ T254] dst_alloc+0x97/0x150 [ 6314.144292][ T254] ip6_dst_alloc+0x23/0x90 [ 6314.144292][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6314.144292][ T254] ip6_pol_route+0x56f/0x840 [ 6314.144292][ T254] fib6_rule_lookup+0x334/0x630 [ 6314.144292][ T254] ip6_route_output_flags+0x259/0x480 [ 6314.144292][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6314.144292][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6314.144292][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.144292][ T254] netlink_unicast+0x449/0x710 [ 6314.144292][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.144292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.144292][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.144292][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.144292][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.144292][ T254] [ 6314.146483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.146483][ T254] netdev_get_by_index+0x5e/0x80 [ 6314.146483][ T254] fib6_nh_init+0x3d8/0x1580 [ 6314.146483][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6314.146483][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6314.146483][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6314.146483][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6314.146483][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6314.146483][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6314.146483][ T254] addrconf_dad_begin+0x310/0x670 [ 6314.146483][ T254] addrconf_dad_work+0x10b/0xab0 [ 6314.146483][ T254] process_one_work+0x84d/0x18a0 [ 6314.146483][ T254] worker_thread+0x587/0xd30 [ 6314.146483][ T254] kthread+0x28a/0x350 [ 6314.146483][ T254] ret_from_fork+0x31/0x70 [ 6314.146483][ T254] ret_from_fork_asm+0x1a/0x30 [ 6314.146483][ T254] [ 6314.148767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.148767][ T254] netdev_get_by_index+0x5e/0x80 [ 6314.148767][ T254] fib6_nh_init+0x3d8/0x1580 [ 6314.148767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6314.148767][ T254] ip6_route_add+0x1c/0x140 [ 6314.148767][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6314.148767][ T254] inet6_addr_add+0x4f8/0xa40 [ 6314.148767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6314.148767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6314.148767][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.148767][ T254] netlink_unicast+0x449/0x710 [ 6314.148767][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.148767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.148767][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.148767][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.148767][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.148767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6314.148767][ T254] [ 6314.151001][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.151001][ T254] netdev_get_by_index+0x5e/0x80 [ 6314.151001][ T254] fib6_nh_init+0x3d8/0x1580 [ 6314.151001][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6314.151001][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6314.151001][ T254] ipv6_add_addr+0x411/0x2000 [ 6314.151001][ T254] inet6_addr_add+0x30e/0xa40 [ 6314.151001][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6314.151001][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6314.151001][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.151001][ T254] netlink_unicast+0x449/0x710 [ 6314.151001][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.151001][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.151001][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.151001][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.151001][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.151001][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6314.151001][ T254] [ 6314.153245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.153245][ T254] netdev_get_by_index+0x5e/0x80 [ 6314.153245][ T254] fib6_nh_init+0x3d8/0x1580 [ 6314.153245][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6314.153245][ T254] ip6_route_add+0x1c/0x140 [ 6314.153245][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6314.153245][ T254] addrconf_add_dev+0xe2/0x170 [ 6314.153245][ T254] inet6_addr_add+0x12f/0xa40 [ 6314.153245][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6314.153245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6314.153245][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.153245][ T254] netlink_unicast+0x449/0x710 [ 6314.153245][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.153245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.153245][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.153245][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.153245][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.153245][ T254] [ 6314.155429][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.155429][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6314.155429][ T254] ipv6_find_idev+0x102/0x170 [ 6314.155429][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6314.155429][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6314.155429][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.155429][ T254] netlink_unicast+0x449/0x710 [ 6314.155429][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.155429][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.155429][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.155429][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.155429][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.155429][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6314.155429][ T254] [ 6314.157144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6314.157144][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6314.157144][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6314.157144][ T254] ipv6_find_idev+0x102/0x170 [ 6314.157144][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6314.157144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6314.157144][ T254] netlink_rcv_skb+0x130/0x360 [ 6314.157144][ T254] netlink_unicast+0x449/0x710 [ 6314.157144][ T254] netlink_sendmsg+0x723/0xbe0 [ 6314.157144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6314.157144][ T254] ___sys_sendmsg+0xee/0x170 [ 6314.157144][ T254] __sys_sendmsg+0xcd/0x170 [ 6314.157144][ T254] do_syscall_64+0xc6/0x1e0 [ 6314.157144][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6314.157144][ T254] [ 6324.247928][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6324.248355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.248355][ T254] dst_init+0x84/0x4a0 [ 6324.248355][ T254] dst_alloc+0x97/0x150 [ 6324.248355][ T254] ip6_dst_alloc+0x23/0x90 [ 6324.248355][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6324.248355][ T254] ip6_pol_route+0x56f/0x840 [ 6324.248355][ T254] fib6_rule_lookup+0x334/0x630 [ 6324.248355][ T254] ip6_route_output_flags+0x259/0x480 [ 6324.248355][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6324.248355][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6324.248355][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.248355][ T254] netlink_unicast+0x449/0x710 [ 6324.248355][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.248355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.248355][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.248355][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.248355][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.248355][ T254] [ 6324.250543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.250543][ T254] netdev_get_by_index+0x5e/0x80 [ 6324.250543][ T254] fib6_nh_init+0x3d8/0x1580 [ 6324.250543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6324.250543][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6324.250543][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6324.250543][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6324.250543][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6324.250543][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6324.250543][ T254] addrconf_dad_begin+0x310/0x670 [ 6324.250543][ T254] addrconf_dad_work+0x10b/0xab0 [ 6324.250543][ T254] process_one_work+0x84d/0x18a0 [ 6324.250543][ T254] worker_thread+0x587/0xd30 [ 6324.250543][ T254] kthread+0x28a/0x350 [ 6324.250543][ T254] ret_from_fork+0x31/0x70 [ 6324.250543][ T254] ret_from_fork_asm+0x1a/0x30 [ 6324.250543][ T254] [ 6324.252695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.252695][ T254] netdev_get_by_index+0x5e/0x80 [ 6324.252695][ T254] fib6_nh_init+0x3d8/0x1580 [ 6324.252695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6324.252695][ T254] ip6_route_add+0x1c/0x140 [ 6324.252695][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6324.252695][ T254] inet6_addr_add+0x4f8/0xa40 [ 6324.252695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6324.252695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6324.252695][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.252695][ T254] netlink_unicast+0x449/0x710 [ 6324.252695][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.252695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.252695][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.252695][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.252695][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.252695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6324.252695][ T254] [ 6324.254929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.254929][ T254] netdev_get_by_index+0x5e/0x80 [ 6324.254929][ T254] fib6_nh_init+0x3d8/0x1580 [ 6324.254929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6324.254929][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6324.254929][ T254] ipv6_add_addr+0x411/0x2000 [ 6324.254929][ T254] inet6_addr_add+0x30e/0xa40 [ 6324.254929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6324.254929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6324.254929][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.254929][ T254] netlink_unicast+0x449/0x710 [ 6324.254929][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.254929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.254929][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.254929][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.254929][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.254929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6324.254929][ T254] [ 6324.257172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.257172][ T254] netdev_get_by_index+0x5e/0x80 [ 6324.257172][ T254] fib6_nh_init+0x3d8/0x1580 [ 6324.257172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6324.257172][ T254] ip6_route_add+0x1c/0x140 [ 6324.257172][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6324.257172][ T254] addrconf_add_dev+0xe2/0x170 [ 6324.257172][ T254] inet6_addr_add+0x12f/0xa40 [ 6324.257172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6324.257172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6324.257172][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.257172][ T254] netlink_unicast+0x449/0x710 [ 6324.257172][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.257172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.257172][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.257172][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.257172][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.257172][ T254] [ 6324.259461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.259461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6324.259461][ T254] ipv6_find_idev+0x102/0x170 [ 6324.259461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6324.259461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6324.259461][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.259461][ T254] netlink_unicast+0x449/0x710 [ 6324.259461][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.259461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.259461][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.259461][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.259461][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.259461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6324.259461][ T254] [ 6324.261187][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6324.261187][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6324.261187][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6324.261187][ T254] ipv6_find_idev+0x102/0x170 [ 6324.261187][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6324.261187][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6324.261187][ T254] netlink_rcv_skb+0x130/0x360 [ 6324.261187][ T254] netlink_unicast+0x449/0x710 [ 6324.261187][ T254] netlink_sendmsg+0x723/0xbe0 [ 6324.261187][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6324.261187][ T254] ___sys_sendmsg+0xee/0x170 [ 6324.261187][ T254] __sys_sendmsg+0xcd/0x170 [ 6324.261187][ T254] do_syscall_64+0xc6/0x1e0 [ 6324.261187][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6324.261187][ T254] [ 6334.263855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6334.264278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.264278][ T254] dst_init+0x84/0x4a0 [ 6334.264278][ T254] dst_alloc+0x97/0x150 [ 6334.264278][ T254] ip6_dst_alloc+0x23/0x90 [ 6334.264278][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6334.264278][ T254] ip6_pol_route+0x56f/0x840 [ 6334.264278][ T254] fib6_rule_lookup+0x334/0x630 [ 6334.264278][ T254] ip6_route_output_flags+0x259/0x480 [ 6334.264278][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6334.264278][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6334.264278][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.264278][ T254] netlink_unicast+0x449/0x710 [ 6334.264278][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.264278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.264278][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.264278][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.264278][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.264278][ T254] [ 6334.266475][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.266475][ T254] netdev_get_by_index+0x5e/0x80 [ 6334.266475][ T254] fib6_nh_init+0x3d8/0x1580 [ 6334.266475][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6334.266475][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6334.266475][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6334.266475][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6334.266475][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6334.266475][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6334.266475][ T254] addrconf_dad_begin+0x310/0x670 [ 6334.266475][ T254] addrconf_dad_work+0x10b/0xab0 [ 6334.266475][ T254] process_one_work+0x84d/0x18a0 [ 6334.266475][ T254] worker_thread+0x587/0xd30 [ 6334.266475][ T254] kthread+0x28a/0x350 [ 6334.266475][ T254] ret_from_fork+0x31/0x70 [ 6334.266475][ T254] ret_from_fork_asm+0x1a/0x30 [ 6334.266475][ T254] [ 6334.268630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.268630][ T254] netdev_get_by_index+0x5e/0x80 [ 6334.268630][ T254] fib6_nh_init+0x3d8/0x1580 [ 6334.268630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6334.268630][ T254] ip6_route_add+0x1c/0x140 [ 6334.268630][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6334.268630][ T254] inet6_addr_add+0x4f8/0xa40 [ 6334.268630][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6334.268630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6334.268630][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.268630][ T254] netlink_unicast+0x449/0x710 [ 6334.268630][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.268630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.268630][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.268630][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.268630][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.268630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6334.268630][ T254] [ 6334.270886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.270886][ T254] netdev_get_by_index+0x5e/0x80 [ 6334.270886][ T254] fib6_nh_init+0x3d8/0x1580 [ 6334.270886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6334.270886][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6334.270886][ T254] ipv6_add_addr+0x411/0x2000 [ 6334.270886][ T254] inet6_addr_add+0x30e/0xa40 [ 6334.270886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6334.270886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6334.270886][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.270886][ T254] netlink_unicast+0x449/0x710 [ 6334.270886][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.270886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.270886][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.270886][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.270886][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.270886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6334.270886][ T254] [ 6334.273172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.273172][ T254] netdev_get_by_index+0x5e/0x80 [ 6334.273172][ T254] fib6_nh_init+0x3d8/0x1580 [ 6334.273172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6334.273172][ T254] ip6_route_add+0x1c/0x140 [ 6334.273172][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6334.273172][ T254] addrconf_add_dev+0xe2/0x170 [ 6334.273172][ T254] inet6_addr_add+0x12f/0xa40 [ 6334.273172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6334.273172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6334.273172][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.273172][ T254] netlink_unicast+0x449/0x710 [ 6334.273172][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.273172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.273172][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.273172][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.273172][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.273172][ T254] [ 6334.275371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.275371][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6334.275371][ T254] ipv6_find_idev+0x102/0x170 [ 6334.275371][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6334.275371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6334.275371][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.275371][ T254] netlink_unicast+0x449/0x710 [ 6334.275371][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.275371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.275371][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.275371][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.275371][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.275371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6334.275371][ T254] [ 6334.277094][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6334.277094][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6334.277094][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6334.277094][ T254] ipv6_find_idev+0x102/0x170 [ 6334.277094][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6334.277094][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6334.277094][ T254] netlink_rcv_skb+0x130/0x360 [ 6334.277094][ T254] netlink_unicast+0x449/0x710 [ 6334.277094][ T254] netlink_sendmsg+0x723/0xbe0 [ 6334.277094][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6334.277094][ T254] ___sys_sendmsg+0xee/0x170 [ 6334.277094][ T254] __sys_sendmsg+0xcd/0x170 [ 6334.277094][ T254] do_syscall_64+0xc6/0x1e0 [ 6334.277094][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6334.277094][ T254] [ 6344.519839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6344.520259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.520259][ T254] dst_init+0x84/0x4a0 [ 6344.520259][ T254] dst_alloc+0x97/0x150 [ 6344.520259][ T254] ip6_dst_alloc+0x23/0x90 [ 6344.520259][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6344.520259][ T254] ip6_pol_route+0x56f/0x840 [ 6344.520259][ T254] fib6_rule_lookup+0x334/0x630 [ 6344.520259][ T254] ip6_route_output_flags+0x259/0x480 [ 6344.520259][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6344.520259][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6344.520259][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.520259][ T254] netlink_unicast+0x449/0x710 [ 6344.520259][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.520259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.520259][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.520259][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.520259][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.520259][ T254] [ 6344.522449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.522449][ T254] netdev_get_by_index+0x5e/0x80 [ 6344.522449][ T254] fib6_nh_init+0x3d8/0x1580 [ 6344.522449][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6344.522449][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6344.522449][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6344.522449][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6344.522449][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6344.522449][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6344.522449][ T254] addrconf_dad_begin+0x310/0x670 [ 6344.522449][ T254] addrconf_dad_work+0x10b/0xab0 [ 6344.522449][ T254] process_one_work+0x84d/0x18a0 [ 6344.522449][ T254] worker_thread+0x587/0xd30 [ 6344.522449][ T254] kthread+0x28a/0x350 [ 6344.522449][ T254] ret_from_fork+0x31/0x70 [ 6344.522449][ T254] ret_from_fork_asm+0x1a/0x30 [ 6344.522449][ T254] [ 6344.524591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.524591][ T254] netdev_get_by_index+0x5e/0x80 [ 6344.524591][ T254] fib6_nh_init+0x3d8/0x1580 [ 6344.524591][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6344.524591][ T254] ip6_route_add+0x1c/0x140 [ 6344.524591][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6344.524591][ T254] inet6_addr_add+0x4f8/0xa40 [ 6344.524591][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6344.524591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6344.524591][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.524591][ T254] netlink_unicast+0x449/0x710 [ 6344.524591][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.524591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.524591][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.524591][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.524591][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.524591][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6344.524591][ T254] [ 6344.526842][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.526842][ T254] netdev_get_by_index+0x5e/0x80 [ 6344.526842][ T254] fib6_nh_init+0x3d8/0x1580 [ 6344.526842][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6344.526842][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6344.526842][ T254] ipv6_add_addr+0x411/0x2000 [ 6344.526842][ T254] inet6_addr_add+0x30e/0xa40 [ 6344.526842][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6344.526842][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6344.526842][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.526842][ T254] netlink_unicast+0x449/0x710 [ 6344.526842][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.526842][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.526842][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.526842][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.526842][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.526842][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6344.526842][ T254] [ 6344.529093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.529093][ T254] netdev_get_by_index+0x5e/0x80 [ 6344.529093][ T254] fib6_nh_init+0x3d8/0x1580 [ 6344.529093][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6344.529093][ T254] ip6_route_add+0x1c/0x140 [ 6344.529093][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6344.529093][ T254] addrconf_add_dev+0xe2/0x170 [ 6344.529093][ T254] inet6_addr_add+0x12f/0xa40 [ 6344.529093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6344.529093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6344.529093][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.529093][ T254] netlink_unicast+0x449/0x710 [ 6344.529093][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.529093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.529093][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.529093][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.529093][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.529093][ T254] [ 6344.531303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.531303][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6344.531303][ T254] ipv6_find_idev+0x102/0x170 [ 6344.531303][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6344.531303][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6344.531303][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.531303][ T254] netlink_unicast+0x449/0x710 [ 6344.531303][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.531303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.531303][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.531303][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.531303][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.531303][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6344.531303][ T254] [ 6344.533028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6344.533028][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6344.533028][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6344.533028][ T254] ipv6_find_idev+0x102/0x170 [ 6344.533028][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6344.533028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6344.533028][ T254] netlink_rcv_skb+0x130/0x360 [ 6344.533028][ T254] netlink_unicast+0x449/0x710 [ 6344.533028][ T254] netlink_sendmsg+0x723/0xbe0 [ 6344.533028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6344.533028][ T254] ___sys_sendmsg+0xee/0x170 [ 6344.533028][ T254] __sys_sendmsg+0xcd/0x170 [ 6344.533028][ T254] do_syscall_64+0xc6/0x1e0 [ 6344.533028][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6344.533028][ T254] [ 6354.775848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6354.776322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.776322][ T254] dst_init+0x84/0x4a0 [ 6354.776322][ T254] dst_alloc+0x97/0x150 [ 6354.776322][ T254] ip6_dst_alloc+0x23/0x90 [ 6354.776322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6354.776322][ T254] ip6_pol_route+0x56f/0x840 [ 6354.776322][ T254] fib6_rule_lookup+0x334/0x630 [ 6354.776322][ T254] ip6_route_output_flags+0x259/0x480 [ 6354.776322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6354.776322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6354.776322][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.776322][ T254] netlink_unicast+0x449/0x710 [ 6354.776322][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.776322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.776322][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.776322][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.776322][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.776322][ T254] [ 6354.778520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.778520][ T254] netdev_get_by_index+0x5e/0x80 [ 6354.778520][ T254] fib6_nh_init+0x3d8/0x1580 [ 6354.778520][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6354.778520][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6354.778520][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6354.778520][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6354.778520][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6354.778520][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6354.778520][ T254] addrconf_dad_begin+0x310/0x670 [ 6354.778520][ T254] addrconf_dad_work+0x10b/0xab0 [ 6354.778520][ T254] process_one_work+0x84d/0x18a0 [ 6354.778520][ T254] worker_thread+0x587/0xd30 [ 6354.778520][ T254] kthread+0x28a/0x350 [ 6354.778520][ T254] ret_from_fork+0x31/0x70 [ 6354.778520][ T254] ret_from_fork_asm+0x1a/0x30 [ 6354.778520][ T254] [ 6354.780695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.780695][ T254] netdev_get_by_index+0x5e/0x80 [ 6354.780695][ T254] fib6_nh_init+0x3d8/0x1580 [ 6354.780695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6354.780695][ T254] ip6_route_add+0x1c/0x140 [ 6354.780695][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6354.780695][ T254] inet6_addr_add+0x4f8/0xa40 [ 6354.780695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6354.780695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6354.780695][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.780695][ T254] netlink_unicast+0x449/0x710 [ 6354.780695][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.780695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.780695][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.780695][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.780695][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.780695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6354.780695][ T254] [ 6354.782942][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.782942][ T254] netdev_get_by_index+0x5e/0x80 [ 6354.782942][ T254] fib6_nh_init+0x3d8/0x1580 [ 6354.782942][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6354.782942][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6354.782942][ T254] ipv6_add_addr+0x411/0x2000 [ 6354.782942][ T254] inet6_addr_add+0x30e/0xa40 [ 6354.782942][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6354.782942][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6354.782942][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.782942][ T254] netlink_unicast+0x449/0x710 [ 6354.782942][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.782942][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.782942][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.782942][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.782942][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.782942][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6354.782942][ T254] [ 6354.785189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.785189][ T254] netdev_get_by_index+0x5e/0x80 [ 6354.785189][ T254] fib6_nh_init+0x3d8/0x1580 [ 6354.785189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6354.785189][ T254] ip6_route_add+0x1c/0x140 [ 6354.785189][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6354.785189][ T254] addrconf_add_dev+0xe2/0x170 [ 6354.785189][ T254] inet6_addr_add+0x12f/0xa40 [ 6354.785189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6354.785189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6354.785189][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.785189][ T254] netlink_unicast+0x449/0x710 [ 6354.785189][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.785189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.785189][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.785189][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.785189][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.785189][ T254] [ 6354.787411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.787411][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6354.787411][ T254] ipv6_find_idev+0x102/0x170 [ 6354.787411][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6354.787411][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6354.787411][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.787411][ T254] netlink_unicast+0x449/0x710 [ 6354.787411][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.787411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.787411][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.787411][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.787411][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.787411][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6354.787411][ T254] [ 6354.789148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6354.789148][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6354.789148][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6354.789148][ T254] ipv6_find_idev+0x102/0x170 [ 6354.789148][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6354.789148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6354.789148][ T254] netlink_rcv_skb+0x130/0x360 [ 6354.789148][ T254] netlink_unicast+0x449/0x710 [ 6354.789148][ T254] netlink_sendmsg+0x723/0xbe0 [ 6354.789148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6354.789148][ T254] ___sys_sendmsg+0xee/0x170 [ 6354.789148][ T254] __sys_sendmsg+0xcd/0x170 [ 6354.789148][ T254] do_syscall_64+0xc6/0x1e0 [ 6354.789148][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6354.789148][ T254] [ 6365.031844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6365.032261][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.032261][ T254] dst_init+0x84/0x4a0 [ 6365.032261][ T254] dst_alloc+0x97/0x150 [ 6365.032261][ T254] ip6_dst_alloc+0x23/0x90 [ 6365.032261][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6365.032261][ T254] ip6_pol_route+0x56f/0x840 [ 6365.032261][ T254] fib6_rule_lookup+0x334/0x630 [ 6365.032261][ T254] ip6_route_output_flags+0x259/0x480 [ 6365.032261][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6365.032261][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6365.032261][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.032261][ T254] netlink_unicast+0x449/0x710 [ 6365.032261][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.032261][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.032261][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.032261][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.032261][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.032261][ T254] [ 6365.034461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.034461][ T254] netdev_get_by_index+0x5e/0x80 [ 6365.034461][ T254] fib6_nh_init+0x3d8/0x1580 [ 6365.034461][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6365.034461][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6365.034461][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6365.034461][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6365.034461][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6365.034461][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6365.034461][ T254] addrconf_dad_begin+0x310/0x670 [ 6365.034461][ T254] addrconf_dad_work+0x10b/0xab0 [ 6365.034461][ T254] process_one_work+0x84d/0x18a0 [ 6365.034461][ T254] worker_thread+0x587/0xd30 [ 6365.034461][ T254] kthread+0x28a/0x350 [ 6365.034461][ T254] ret_from_fork+0x31/0x70 [ 6365.034461][ T254] ret_from_fork_asm+0x1a/0x30 [ 6365.034461][ T254] [ 6365.036603][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.036603][ T254] netdev_get_by_index+0x5e/0x80 [ 6365.036603][ T254] fib6_nh_init+0x3d8/0x1580 [ 6365.036603][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6365.036603][ T254] ip6_route_add+0x1c/0x140 [ 6365.036603][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6365.036603][ T254] inet6_addr_add+0x4f8/0xa40 [ 6365.036603][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6365.036603][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6365.036603][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.036603][ T254] netlink_unicast+0x449/0x710 [ 6365.036603][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.036603][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.036603][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.036603][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.036603][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.036603][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6365.036603][ T254] [ 6365.038870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.038870][ T254] netdev_get_by_index+0x5e/0x80 [ 6365.038870][ T254] fib6_nh_init+0x3d8/0x1580 [ 6365.038870][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6365.038870][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6365.038870][ T254] ipv6_add_addr+0x411/0x2000 [ 6365.038870][ T254] inet6_addr_add+0x30e/0xa40 [ 6365.038870][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6365.038870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6365.038870][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.038870][ T254] netlink_unicast+0x449/0x710 [ 6365.038870][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.038870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.038870][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.038870][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.038870][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.038870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6365.038870][ T254] [ 6365.041119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.041119][ T254] netdev_get_by_index+0x5e/0x80 [ 6365.041119][ T254] fib6_nh_init+0x3d8/0x1580 [ 6365.041119][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6365.041119][ T254] ip6_route_add+0x1c/0x140 [ 6365.041119][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6365.041119][ T254] addrconf_add_dev+0xe2/0x170 [ 6365.041119][ T254] inet6_addr_add+0x12f/0xa40 [ 6365.041119][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6365.041119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6365.041119][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.041119][ T254] netlink_unicast+0x449/0x710 [ 6365.041119][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.041119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.041119][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.041119][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.041119][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.041119][ T254] [ 6365.043325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.043325][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6365.043325][ T254] ipv6_find_idev+0x102/0x170 [ 6365.043325][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6365.043325][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6365.043325][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.043325][ T254] netlink_unicast+0x449/0x710 [ 6365.043325][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.043325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.043325][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.043325][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.043325][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.043325][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6365.043325][ T254] [ 6365.045046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6365.045046][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6365.045046][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6365.045046][ T254] ipv6_find_idev+0x102/0x170 [ 6365.045046][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6365.045046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6365.045046][ T254] netlink_rcv_skb+0x130/0x360 [ 6365.045046][ T254] netlink_unicast+0x449/0x710 [ 6365.045046][ T254] netlink_sendmsg+0x723/0xbe0 [ 6365.045046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6365.045046][ T254] ___sys_sendmsg+0xee/0x170 [ 6365.045046][ T254] __sys_sendmsg+0xcd/0x170 [ 6365.045046][ T254] do_syscall_64+0xc6/0x1e0 [ 6365.045046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6365.045046][ T254] [ 6375.071837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6375.072312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.072312][ T254] dst_init+0x84/0x4a0 [ 6375.072312][ T254] dst_alloc+0x97/0x150 [ 6375.072312][ T254] ip6_dst_alloc+0x23/0x90 [ 6375.072312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6375.072312][ T254] ip6_pol_route+0x56f/0x840 [ 6375.072312][ T254] fib6_rule_lookup+0x334/0x630 [ 6375.072312][ T254] ip6_route_output_flags+0x259/0x480 [ 6375.072312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6375.072312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6375.072312][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.072312][ T254] netlink_unicast+0x449/0x710 [ 6375.072312][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.072312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.072312][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.072312][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.072312][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.072312][ T254] [ 6375.074525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.074525][ T254] netdev_get_by_index+0x5e/0x80 [ 6375.074525][ T254] fib6_nh_init+0x3d8/0x1580 [ 6375.074525][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6375.074525][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6375.074525][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6375.074525][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6375.074525][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6375.074525][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6375.074525][ T254] addrconf_dad_begin+0x310/0x670 [ 6375.074525][ T254] addrconf_dad_work+0x10b/0xab0 [ 6375.074525][ T254] process_one_work+0x84d/0x18a0 [ 6375.074525][ T254] worker_thread+0x587/0xd30 [ 6375.074525][ T254] kthread+0x28a/0x350 [ 6375.074525][ T254] ret_from_fork+0x31/0x70 [ 6375.074525][ T254] ret_from_fork_asm+0x1a/0x30 [ 6375.074525][ T254] [ 6375.076703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.076703][ T254] netdev_get_by_index+0x5e/0x80 [ 6375.076703][ T254] fib6_nh_init+0x3d8/0x1580 [ 6375.076703][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6375.076703][ T254] ip6_route_add+0x1c/0x140 [ 6375.076703][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6375.076703][ T254] inet6_addr_add+0x4f8/0xa40 [ 6375.076703][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6375.076703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6375.076703][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.076703][ T254] netlink_unicast+0x449/0x710 [ 6375.076703][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.076703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.076703][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.076703][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.076703][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.076703][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6375.076703][ T254] [ 6375.078986][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.078986][ T254] netdev_get_by_index+0x5e/0x80 [ 6375.078986][ T254] fib6_nh_init+0x3d8/0x1580 [ 6375.078986][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6375.078986][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6375.078986][ T254] ipv6_add_addr+0x411/0x2000 [ 6375.078986][ T254] inet6_addr_add+0x30e/0xa40 [ 6375.078986][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6375.078986][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6375.078986][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.078986][ T254] netlink_unicast+0x449/0x710 [ 6375.078986][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.078986][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.078986][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.078986][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.078986][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.078986][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6375.078986][ T254] [ 6375.081241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.081241][ T254] netdev_get_by_index+0x5e/0x80 [ 6375.081241][ T254] fib6_nh_init+0x3d8/0x1580 [ 6375.081241][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6375.081241][ T254] ip6_route_add+0x1c/0x140 [ 6375.081241][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6375.081241][ T254] addrconf_add_dev+0xe2/0x170 [ 6375.081241][ T254] inet6_addr_add+0x12f/0xa40 [ 6375.081241][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6375.081241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6375.081241][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.081241][ T254] netlink_unicast+0x449/0x710 [ 6375.081241][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.081241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.081241][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.081241][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.081241][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.081241][ T254] [ 6375.083452][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.083452][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6375.083452][ T254] ipv6_find_idev+0x102/0x170 [ 6375.083452][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6375.083452][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6375.083452][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.083452][ T254] netlink_unicast+0x449/0x710 [ 6375.083452][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.083452][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.083452][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.083452][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.083452][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.083452][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6375.083452][ T254] [ 6375.085195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6375.085195][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6375.085195][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6375.085195][ T254] ipv6_find_idev+0x102/0x170 [ 6375.085195][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6375.085195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6375.085195][ T254] netlink_rcv_skb+0x130/0x360 [ 6375.085195][ T254] netlink_unicast+0x449/0x710 [ 6375.085195][ T254] netlink_sendmsg+0x723/0xbe0 [ 6375.085195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6375.085195][ T254] ___sys_sendmsg+0xee/0x170 [ 6375.085195][ T254] __sys_sendmsg+0xcd/0x170 [ 6375.085195][ T254] do_syscall_64+0xc6/0x1e0 [ 6375.085195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6375.085195][ T254] [ 6385.183848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6385.184335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.184335][ T254] dst_init+0x84/0x4a0 [ 6385.184335][ T254] dst_alloc+0x97/0x150 [ 6385.184335][ T254] ip6_dst_alloc+0x23/0x90 [ 6385.184335][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6385.184335][ T254] ip6_pol_route+0x56f/0x840 [ 6385.184335][ T254] fib6_rule_lookup+0x334/0x630 [ 6385.184335][ T254] ip6_route_output_flags+0x259/0x480 [ 6385.184335][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6385.184335][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6385.184335][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.184335][ T254] netlink_unicast+0x449/0x710 [ 6385.184335][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.184335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.184335][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.184335][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.184335][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.184335][ T254] [ 6385.186549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.186549][ T254] netdev_get_by_index+0x5e/0x80 [ 6385.186549][ T254] fib6_nh_init+0x3d8/0x1580 [ 6385.186549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6385.186549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6385.186549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6385.186549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6385.186549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6385.186549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6385.186549][ T254] addrconf_dad_begin+0x310/0x670 [ 6385.186549][ T254] addrconf_dad_work+0x10b/0xab0 [ 6385.186549][ T254] process_one_work+0x84d/0x18a0 [ 6385.186549][ T254] worker_thread+0x587/0xd30 [ 6385.186549][ T254] kthread+0x28a/0x350 [ 6385.186549][ T254] ret_from_fork+0x31/0x70 [ 6385.186549][ T254] ret_from_fork_asm+0x1a/0x30 [ 6385.186549][ T254] [ 6385.188837][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.188837][ T254] netdev_get_by_index+0x5e/0x80 [ 6385.188837][ T254] fib6_nh_init+0x3d8/0x1580 [ 6385.188837][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6385.188837][ T254] ip6_route_add+0x1c/0x140 [ 6385.188837][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6385.188837][ T254] inet6_addr_add+0x4f8/0xa40 [ 6385.188837][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6385.188837][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6385.188837][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.188837][ T254] netlink_unicast+0x449/0x710 [ 6385.188837][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.188837][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.188837][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.188837][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.188837][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.188837][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6385.188837][ T254] [ 6385.191093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.191093][ T254] netdev_get_by_index+0x5e/0x80 [ 6385.191093][ T254] fib6_nh_init+0x3d8/0x1580 [ 6385.191093][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6385.191093][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6385.191093][ T254] ipv6_add_addr+0x411/0x2000 [ 6385.191093][ T254] inet6_addr_add+0x30e/0xa40 [ 6385.191093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6385.191093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6385.191093][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.191093][ T254] netlink_unicast+0x449/0x710 [ 6385.191093][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.191093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.191093][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.191093][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.191093][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.191093][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6385.191093][ T254] [ 6385.193350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.193350][ T254] netdev_get_by_index+0x5e/0x80 [ 6385.193350][ T254] fib6_nh_init+0x3d8/0x1580 [ 6385.193350][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6385.193350][ T254] ip6_route_add+0x1c/0x140 [ 6385.193350][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6385.193350][ T254] addrconf_add_dev+0xe2/0x170 [ 6385.193350][ T254] inet6_addr_add+0x12f/0xa40 [ 6385.193350][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6385.193350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6385.193350][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.193350][ T254] netlink_unicast+0x449/0x710 [ 6385.193350][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.193350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.193350][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.193350][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.193350][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.193350][ T254] [ 6385.195562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.195562][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6385.195562][ T254] ipv6_find_idev+0x102/0x170 [ 6385.195562][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6385.195562][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6385.195562][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.195562][ T254] netlink_unicast+0x449/0x710 [ 6385.195562][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.195562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.195562][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.195562][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.195562][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.195562][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6385.195562][ T254] [ 6385.197302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6385.197302][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6385.197302][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6385.197302][ T254] ipv6_find_idev+0x102/0x170 [ 6385.197302][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6385.197302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6385.197302][ T254] netlink_rcv_skb+0x130/0x360 [ 6385.197302][ T254] netlink_unicast+0x449/0x710 [ 6385.197302][ T254] netlink_sendmsg+0x723/0xbe0 [ 6385.197302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6385.197302][ T254] ___sys_sendmsg+0xee/0x170 [ 6385.197302][ T254] __sys_sendmsg+0xcd/0x170 [ 6385.197302][ T254] do_syscall_64+0xc6/0x1e0 [ 6385.197302][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6385.197302][ T254] [ 6395.263856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6395.264357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.264357][ T254] dst_init+0x84/0x4a0 [ 6395.264357][ T254] dst_alloc+0x97/0x150 [ 6395.264357][ T254] ip6_dst_alloc+0x23/0x90 [ 6395.264357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6395.264357][ T254] ip6_pol_route+0x56f/0x840 [ 6395.264357][ T254] fib6_rule_lookup+0x334/0x630 [ 6395.264357][ T254] ip6_route_output_flags+0x259/0x480 [ 6395.264357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6395.264357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6395.264357][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.264357][ T254] netlink_unicast+0x449/0x710 [ 6395.264357][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.264357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.264357][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.264357][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.264357][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.264357][ T254] [ 6395.266570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.266570][ T254] netdev_get_by_index+0x5e/0x80 [ 6395.266570][ T254] fib6_nh_init+0x3d8/0x1580 [ 6395.266570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6395.266570][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6395.266570][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6395.266570][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6395.266570][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6395.266570][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6395.266570][ T254] addrconf_dad_begin+0x310/0x670 [ 6395.266570][ T254] addrconf_dad_work+0x10b/0xab0 [ 6395.266570][ T254] process_one_work+0x84d/0x18a0 [ 6395.266570][ T254] worker_thread+0x587/0xd30 [ 6395.266570][ T254] kthread+0x28a/0x350 [ 6395.266570][ T254] ret_from_fork+0x31/0x70 [ 6395.266570][ T254] ret_from_fork_asm+0x1a/0x30 [ 6395.266570][ T254] [ 6395.268754][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.268754][ T254] netdev_get_by_index+0x5e/0x80 [ 6395.268754][ T254] fib6_nh_init+0x3d8/0x1580 [ 6395.268754][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6395.268754][ T254] ip6_route_add+0x1c/0x140 [ 6395.268754][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6395.268754][ T254] inet6_addr_add+0x4f8/0xa40 [ 6395.268754][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6395.268754][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6395.268754][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.268754][ T254] netlink_unicast+0x449/0x710 [ 6395.268754][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.268754][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.268754][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.268754][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.268754][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.268754][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6395.268754][ T254] [ 6395.271012][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.271012][ T254] netdev_get_by_index+0x5e/0x80 [ 6395.271012][ T254] fib6_nh_init+0x3d8/0x1580 [ 6395.271012][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6395.271012][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6395.271012][ T254] ipv6_add_addr+0x411/0x2000 [ 6395.271012][ T254] inet6_addr_add+0x30e/0xa40 [ 6395.271012][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6395.271012][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6395.271012][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.271012][ T254] netlink_unicast+0x449/0x710 [ 6395.271012][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.271012][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.271012][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.271012][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.271012][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.271012][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6395.271012][ T254] [ 6395.273277][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.273277][ T254] netdev_get_by_index+0x5e/0x80 [ 6395.273277][ T254] fib6_nh_init+0x3d8/0x1580 [ 6395.273277][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6395.273277][ T254] ip6_route_add+0x1c/0x140 [ 6395.273277][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6395.273277][ T254] addrconf_add_dev+0xe2/0x170 [ 6395.273277][ T254] inet6_addr_add+0x12f/0xa40 [ 6395.273277][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6395.273277][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6395.273277][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.273277][ T254] netlink_unicast+0x449/0x710 [ 6395.273277][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.273277][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.273277][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.273277][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.273277][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.273277][ T254] [ 6395.275492][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.275492][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6395.275492][ T254] ipv6_find_idev+0x102/0x170 [ 6395.275492][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6395.275492][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6395.275492][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.275492][ T254] netlink_unicast+0x449/0x710 [ 6395.275492][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.275492][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.275492][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.275492][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.275492][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.275492][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6395.275492][ T254] [ 6395.277231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6395.277231][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6395.277231][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6395.277231][ T254] ipv6_find_idev+0x102/0x170 [ 6395.277231][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6395.277231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6395.277231][ T254] netlink_rcv_skb+0x130/0x360 [ 6395.277231][ T254] netlink_unicast+0x449/0x710 [ 6395.277231][ T254] netlink_sendmsg+0x723/0xbe0 [ 6395.277231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6395.277231][ T254] ___sys_sendmsg+0xee/0x170 [ 6395.277231][ T254] __sys_sendmsg+0xcd/0x170 [ 6395.277231][ T254] do_syscall_64+0xc6/0x1e0 [ 6395.277231][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6395.277231][ T254] [ 6405.527839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6405.528265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.528265][ T254] dst_init+0x84/0x4a0 [ 6405.528265][ T254] dst_alloc+0x97/0x150 [ 6405.528265][ T254] ip6_dst_alloc+0x23/0x90 [ 6405.528265][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6405.528265][ T254] ip6_pol_route+0x56f/0x840 [ 6405.528265][ T254] fib6_rule_lookup+0x334/0x630 [ 6405.528265][ T254] ip6_route_output_flags+0x259/0x480 [ 6405.528265][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6405.528265][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6405.528265][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.528265][ T254] netlink_unicast+0x449/0x710 [ 6405.528265][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.528265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.528265][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.528265][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.528265][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.528265][ T254] [ 6405.530497][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.530497][ T254] netdev_get_by_index+0x5e/0x80 [ 6405.530497][ T254] fib6_nh_init+0x3d8/0x1580 [ 6405.530497][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6405.530497][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6405.530497][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6405.530497][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6405.530497][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6405.530497][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6405.530497][ T254] addrconf_dad_begin+0x310/0x670 [ 6405.530497][ T254] addrconf_dad_work+0x10b/0xab0 [ 6405.530497][ T254] process_one_work+0x84d/0x18a0 [ 6405.530497][ T254] worker_thread+0x587/0xd30 [ 6405.530497][ T254] kthread+0x28a/0x350 [ 6405.530497][ T254] ret_from_fork+0x31/0x70 [ 6405.530497][ T254] ret_from_fork_asm+0x1a/0x30 [ 6405.530497][ T254] [ 6405.532668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.532668][ T254] netdev_get_by_index+0x5e/0x80 [ 6405.532668][ T254] fib6_nh_init+0x3d8/0x1580 [ 6405.532668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6405.532668][ T254] ip6_route_add+0x1c/0x140 [ 6405.532668][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6405.532668][ T254] inet6_addr_add+0x4f8/0xa40 [ 6405.532668][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6405.532668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6405.532668][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.532668][ T254] netlink_unicast+0x449/0x710 [ 6405.532668][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.532668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.532668][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.532668][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.532668][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.532668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6405.532668][ T254] [ 6405.534931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.534931][ T254] netdev_get_by_index+0x5e/0x80 [ 6405.534931][ T254] fib6_nh_init+0x3d8/0x1580 [ 6405.534931][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6405.534931][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6405.534931][ T254] ipv6_add_addr+0x411/0x2000 [ 6405.534931][ T254] inet6_addr_add+0x30e/0xa40 [ 6405.534931][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6405.534931][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6405.534931][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.534931][ T254] netlink_unicast+0x449/0x710 [ 6405.534931][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.534931][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.534931][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.534931][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.534931][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.534931][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6405.534931][ T254] [ 6405.537726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.537726][ T254] netdev_get_by_index+0x5e/0x80 [ 6405.537726][ T254] fib6_nh_init+0x3d8/0x1580 [ 6405.537726][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6405.537726][ T254] ip6_route_add+0x1c/0x140 [ 6405.537726][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6405.537726][ T254] addrconf_add_dev+0xe2/0x170 [ 6405.537726][ T254] inet6_addr_add+0x12f/0xa40 [ 6405.537726][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6405.537726][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6405.537726][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.537726][ T254] netlink_unicast+0x449/0x710 [ 6405.537726][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.537726][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.537726][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.537726][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.537726][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.537726][ T254] [ 6405.539937][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.539937][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6405.539937][ T254] ipv6_find_idev+0x102/0x170 [ 6405.539937][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6405.539937][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6405.539937][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.539937][ T254] netlink_unicast+0x449/0x710 [ 6405.539937][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.539937][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.539937][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.539937][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.539937][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.539937][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6405.539937][ T254] [ 6405.542061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6405.542061][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6405.542061][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6405.542061][ T254] ipv6_find_idev+0x102/0x170 [ 6405.542061][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6405.542061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6405.542061][ T254] netlink_rcv_skb+0x130/0x360 [ 6405.542061][ T254] netlink_unicast+0x449/0x710 [ 6405.542061][ T254] netlink_sendmsg+0x723/0xbe0 [ 6405.542061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6405.542061][ T254] ___sys_sendmsg+0xee/0x170 [ 6405.542061][ T254] __sys_sendmsg+0xcd/0x170 [ 6405.542061][ T254] do_syscall_64+0xc6/0x1e0 [ 6405.542061][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6405.542061][ T254] [ 6415.791936][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6415.792354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.792354][ T254] dst_init+0x84/0x4a0 [ 6415.792354][ T254] dst_alloc+0x97/0x150 [ 6415.792354][ T254] ip6_dst_alloc+0x23/0x90 [ 6415.792354][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6415.792354][ T254] ip6_pol_route+0x56f/0x840 [ 6415.792354][ T254] fib6_rule_lookup+0x334/0x630 [ 6415.792354][ T254] ip6_route_output_flags+0x259/0x480 [ 6415.792354][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6415.792354][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6415.792354][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.792354][ T254] netlink_unicast+0x449/0x710 [ 6415.792354][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.792354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.792354][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.792354][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.792354][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.792354][ T254] [ 6415.794549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.794549][ T254] netdev_get_by_index+0x5e/0x80 [ 6415.794549][ T254] fib6_nh_init+0x3d8/0x1580 [ 6415.794549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6415.794549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6415.794549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6415.794549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6415.794549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6415.794549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6415.794549][ T254] addrconf_dad_begin+0x310/0x670 [ 6415.794549][ T254] addrconf_dad_work+0x10b/0xab0 [ 6415.794549][ T254] process_one_work+0x84d/0x18a0 [ 6415.794549][ T254] worker_thread+0x587/0xd30 [ 6415.794549][ T254] kthread+0x28a/0x350 [ 6415.794549][ T254] ret_from_fork+0x31/0x70 [ 6415.794549][ T254] ret_from_fork_asm+0x1a/0x30 [ 6415.794549][ T254] [ 6415.796698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.796698][ T254] netdev_get_by_index+0x5e/0x80 [ 6415.796698][ T254] fib6_nh_init+0x3d8/0x1580 [ 6415.796698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6415.796698][ T254] ip6_route_add+0x1c/0x140 [ 6415.796698][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6415.796698][ T254] inet6_addr_add+0x4f8/0xa40 [ 6415.796698][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6415.796698][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6415.796698][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.796698][ T254] netlink_unicast+0x449/0x710 [ 6415.796698][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.796698][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.796698][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.796698][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.796698][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.796698][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6415.796698][ T254] [ 6415.798960][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.798960][ T254] netdev_get_by_index+0x5e/0x80 [ 6415.798960][ T254] fib6_nh_init+0x3d8/0x1580 [ 6415.798960][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6415.798960][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6415.798960][ T254] ipv6_add_addr+0x411/0x2000 [ 6415.798960][ T254] inet6_addr_add+0x30e/0xa40 [ 6415.798960][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6415.798960][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6415.798960][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.798960][ T254] netlink_unicast+0x449/0x710 [ 6415.798960][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.798960][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.798960][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.798960][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.798960][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.798960][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6415.798960][ T254] [ 6415.801208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.801208][ T254] netdev_get_by_index+0x5e/0x80 [ 6415.801208][ T254] fib6_nh_init+0x3d8/0x1580 [ 6415.801208][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6415.801208][ T254] ip6_route_add+0x1c/0x140 [ 6415.801208][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6415.801208][ T254] addrconf_add_dev+0xe2/0x170 [ 6415.801208][ T254] inet6_addr_add+0x12f/0xa40 [ 6415.801208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6415.801208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6415.801208][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.801208][ T254] netlink_unicast+0x449/0x710 [ 6415.801208][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.801208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.801208][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.801208][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.801208][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.801208][ T254] [ 6415.803410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.803410][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6415.803410][ T254] ipv6_find_idev+0x102/0x170 [ 6415.803410][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6415.803410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6415.803410][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.803410][ T254] netlink_unicast+0x449/0x710 [ 6415.803410][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.803410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.803410][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.803410][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.803410][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.803410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6415.803410][ T254] [ 6415.805517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6415.805517][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6415.805517][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6415.805517][ T254] ipv6_find_idev+0x102/0x170 [ 6415.805517][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6415.805517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6415.805517][ T254] netlink_rcv_skb+0x130/0x360 [ 6415.805517][ T254] netlink_unicast+0x449/0x710 [ 6415.805517][ T254] netlink_sendmsg+0x723/0xbe0 [ 6415.805517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6415.805517][ T254] ___sys_sendmsg+0xee/0x170 [ 6415.805517][ T254] __sys_sendmsg+0xcd/0x170 [ 6415.805517][ T254] do_syscall_64+0xc6/0x1e0 [ 6415.805517][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6415.805517][ T254] [ 6425.967845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6425.968271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.968271][ T254] dst_init+0x84/0x4a0 [ 6425.968271][ T254] dst_alloc+0x97/0x150 [ 6425.968271][ T254] ip6_dst_alloc+0x23/0x90 [ 6425.968271][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6425.968271][ T254] ip6_pol_route+0x56f/0x840 [ 6425.968271][ T254] fib6_rule_lookup+0x334/0x630 [ 6425.968271][ T254] ip6_route_output_flags+0x259/0x480 [ 6425.968271][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6425.968271][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6425.968271][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.968271][ T254] netlink_unicast+0x449/0x710 [ 6425.968271][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.968271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.968271][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.968271][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.968271][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.968271][ T254] [ 6425.970459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.970459][ T254] netdev_get_by_index+0x5e/0x80 [ 6425.970459][ T254] fib6_nh_init+0x3d8/0x1580 [ 6425.970459][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6425.970459][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6425.970459][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6425.970459][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6425.970459][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6425.970459][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6425.970459][ T254] addrconf_dad_begin+0x310/0x670 [ 6425.970459][ T254] addrconf_dad_work+0x10b/0xab0 [ 6425.970459][ T254] process_one_work+0x84d/0x18a0 [ 6425.970459][ T254] worker_thread+0x587/0xd30 [ 6425.970459][ T254] kthread+0x28a/0x350 [ 6425.970459][ T254] ret_from_fork+0x31/0x70 [ 6425.970459][ T254] ret_from_fork_asm+0x1a/0x30 [ 6425.970459][ T254] [ 6425.972602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.972602][ T254] netdev_get_by_index+0x5e/0x80 [ 6425.972602][ T254] fib6_nh_init+0x3d8/0x1580 [ 6425.972602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6425.972602][ T254] ip6_route_add+0x1c/0x140 [ 6425.972602][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6425.972602][ T254] inet6_addr_add+0x4f8/0xa40 [ 6425.972602][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6425.972602][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6425.972602][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.972602][ T254] netlink_unicast+0x449/0x710 [ 6425.972602][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.972602][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.972602][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.972602][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.972602][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.972602][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6425.972602][ T254] [ 6425.974831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.974831][ T254] netdev_get_by_index+0x5e/0x80 [ 6425.974831][ T254] fib6_nh_init+0x3d8/0x1580 [ 6425.974831][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6425.974831][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6425.974831][ T254] ipv6_add_addr+0x411/0x2000 [ 6425.974831][ T254] inet6_addr_add+0x30e/0xa40 [ 6425.974831][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6425.974831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6425.974831][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.974831][ T254] netlink_unicast+0x449/0x710 [ 6425.974831][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.974831][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.974831][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.974831][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.974831][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.974831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6425.974831][ T254] [ 6425.977061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.977061][ T254] netdev_get_by_index+0x5e/0x80 [ 6425.977061][ T254] fib6_nh_init+0x3d8/0x1580 [ 6425.977061][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6425.977061][ T254] ip6_route_add+0x1c/0x140 [ 6425.977061][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6425.977061][ T254] addrconf_add_dev+0xe2/0x170 [ 6425.977061][ T254] inet6_addr_add+0x12f/0xa40 [ 6425.977061][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6425.977061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6425.977061][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.977061][ T254] netlink_unicast+0x449/0x710 [ 6425.977061][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.977061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.977061][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.977061][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.977061][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.977061][ T254] [ 6425.979309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.979309][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6425.979309][ T254] ipv6_find_idev+0x102/0x170 [ 6425.979309][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6425.979309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6425.979309][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.979309][ T254] netlink_unicast+0x449/0x710 [ 6425.979309][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.979309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.979309][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.979309][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.979309][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.979309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6425.979309][ T254] [ 6425.981032][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6425.981032][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6425.981032][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6425.981032][ T254] ipv6_find_idev+0x102/0x170 [ 6425.981032][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6425.981032][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6425.981032][ T254] netlink_rcv_skb+0x130/0x360 [ 6425.981032][ T254] netlink_unicast+0x449/0x710 [ 6425.981032][ T254] netlink_sendmsg+0x723/0xbe0 [ 6425.981032][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6425.981032][ T254] ___sys_sendmsg+0xee/0x170 [ 6425.981032][ T254] __sys_sendmsg+0xcd/0x170 [ 6425.981032][ T254] do_syscall_64+0xc6/0x1e0 [ 6425.981032][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6425.981032][ T254] [ 6436.335959][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6436.336410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.336410][ T254] dst_init+0x84/0x4a0 [ 6436.336410][ T254] dst_alloc+0x97/0x150 [ 6436.336410][ T254] ip6_dst_alloc+0x23/0x90 [ 6436.336410][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6436.336410][ T254] ip6_pol_route+0x56f/0x840 [ 6436.336410][ T254] fib6_rule_lookup+0x334/0x630 [ 6436.336410][ T254] ip6_route_output_flags+0x259/0x480 [ 6436.336410][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6436.336410][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6436.336410][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.336410][ T254] netlink_unicast+0x449/0x710 [ 6436.336410][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.336410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.336410][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.336410][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.336410][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.336410][ T254] [ 6436.338684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.338684][ T254] netdev_get_by_index+0x5e/0x80 [ 6436.338684][ T254] fib6_nh_init+0x3d8/0x1580 [ 6436.338684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6436.338684][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6436.338684][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6436.338684][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6436.338684][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6436.338684][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6436.338684][ T254] addrconf_dad_begin+0x310/0x670 [ 6436.338684][ T254] addrconf_dad_work+0x10b/0xab0 [ 6436.338684][ T254] process_one_work+0x84d/0x18a0 [ 6436.338684][ T254] worker_thread+0x587/0xd30 [ 6436.338684][ T254] kthread+0x28a/0x350 [ 6436.338684][ T254] ret_from_fork+0x31/0x70 [ 6436.338684][ T254] ret_from_fork_asm+0x1a/0x30 [ 6436.338684][ T254] [ 6436.340839][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.340839][ T254] netdev_get_by_index+0x5e/0x80 [ 6436.340839][ T254] fib6_nh_init+0x3d8/0x1580 [ 6436.340839][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6436.340839][ T254] ip6_route_add+0x1c/0x140 [ 6436.340839][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6436.340839][ T254] inet6_addr_add+0x4f8/0xa40 [ 6436.340839][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6436.340839][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6436.340839][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.340839][ T254] netlink_unicast+0x449/0x710 [ 6436.340839][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.340839][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.340839][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.340839][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.340839][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.340839][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6436.340839][ T254] [ 6436.343093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.343093][ T254] netdev_get_by_index+0x5e/0x80 [ 6436.343093][ T254] fib6_nh_init+0x3d8/0x1580 [ 6436.343093][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6436.343093][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6436.343093][ T254] ipv6_add_addr+0x411/0x2000 [ 6436.343093][ T254] inet6_addr_add+0x30e/0xa40 [ 6436.343093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6436.343093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6436.343093][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.343093][ T254] netlink_unicast+0x449/0x710 [ 6436.343093][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.343093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.343093][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.343093][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.343093][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.343093][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6436.343093][ T254] [ 6436.345370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.345370][ T254] netdev_get_by_index+0x5e/0x80 [ 6436.345370][ T254] fib6_nh_init+0x3d8/0x1580 [ 6436.345370][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6436.345370][ T254] ip6_route_add+0x1c/0x140 [ 6436.345370][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6436.345370][ T254] addrconf_add_dev+0xe2/0x170 [ 6436.345370][ T254] inet6_addr_add+0x12f/0xa40 [ 6436.345370][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6436.345370][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6436.345370][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.345370][ T254] netlink_unicast+0x449/0x710 [ 6436.345370][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.345370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.345370][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.345370][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.345370][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.345370][ T254] [ 6436.347685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.347685][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6436.347685][ T254] ipv6_find_idev+0x102/0x170 [ 6436.347685][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6436.347685][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6436.347685][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.347685][ T254] netlink_unicast+0x449/0x710 [ 6436.347685][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.347685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.347685][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.347685][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.347685][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.347685][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6436.347685][ T254] [ 6436.349414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6436.349414][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6436.349414][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6436.349414][ T254] ipv6_find_idev+0x102/0x170 [ 6436.349414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6436.349414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6436.349414][ T254] netlink_rcv_skb+0x130/0x360 [ 6436.349414][ T254] netlink_unicast+0x449/0x710 [ 6436.349414][ T254] netlink_sendmsg+0x723/0xbe0 [ 6436.349414][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6436.349414][ T254] ___sys_sendmsg+0xee/0x170 [ 6436.349414][ T254] __sys_sendmsg+0xcd/0x170 [ 6436.349414][ T254] do_syscall_64+0xc6/0x1e0 [ 6436.349414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6436.349414][ T254] [ 6446.599845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6446.600293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.600293][ T254] dst_init+0x84/0x4a0 [ 6446.600293][ T254] dst_alloc+0x97/0x150 [ 6446.600293][ T254] ip6_dst_alloc+0x23/0x90 [ 6446.600293][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6446.600293][ T254] ip6_pol_route+0x56f/0x840 [ 6446.600293][ T254] fib6_rule_lookup+0x334/0x630 [ 6446.600293][ T254] ip6_route_output_flags+0x259/0x480 [ 6446.600293][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6446.600293][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6446.600293][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.600293][ T254] netlink_unicast+0x449/0x710 [ 6446.600293][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.600293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.600293][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.600293][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.600293][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.600293][ T254] [ 6446.602630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.602630][ T254] netdev_get_by_index+0x5e/0x80 [ 6446.602630][ T254] fib6_nh_init+0x3d8/0x1580 [ 6446.602630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6446.602630][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6446.602630][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6446.602630][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6446.602630][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6446.602630][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6446.602630][ T254] addrconf_dad_begin+0x310/0x670 [ 6446.602630][ T254] addrconf_dad_work+0x10b/0xab0 [ 6446.602630][ T254] process_one_work+0x84d/0x18a0 [ 6446.602630][ T254] worker_thread+0x587/0xd30 [ 6446.602630][ T254] kthread+0x28a/0x350 [ 6446.602630][ T254] ret_from_fork+0x31/0x70 [ 6446.602630][ T254] ret_from_fork_asm+0x1a/0x30 [ 6446.602630][ T254] [ 6446.604929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.604929][ T254] netdev_get_by_index+0x5e/0x80 [ 6446.604929][ T254] fib6_nh_init+0x3d8/0x1580 [ 6446.604929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6446.604929][ T254] ip6_route_add+0x1c/0x140 [ 6446.604929][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6446.604929][ T254] inet6_addr_add+0x4f8/0xa40 [ 6446.604929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6446.604929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6446.604929][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.604929][ T254] netlink_unicast+0x449/0x710 [ 6446.604929][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.604929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.604929][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.604929][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.604929][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.604929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6446.604929][ T254] [ 6446.607340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.607340][ T254] netdev_get_by_index+0x5e/0x80 [ 6446.607340][ T254] fib6_nh_init+0x3d8/0x1580 [ 6446.607340][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6446.607340][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6446.607340][ T254] ipv6_add_addr+0x411/0x2000 [ 6446.607340][ T254] inet6_addr_add+0x30e/0xa40 [ 6446.607340][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6446.607340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6446.607340][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.607340][ T254] netlink_unicast+0x449/0x710 [ 6446.607340][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.607340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.607340][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.607340][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.607340][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.607340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6446.607340][ T254] [ 6446.609744][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.609744][ T254] netdev_get_by_index+0x5e/0x80 [ 6446.609744][ T254] fib6_nh_init+0x3d8/0x1580 [ 6446.609744][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6446.609744][ T254] ip6_route_add+0x1c/0x140 [ 6446.609744][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6446.609744][ T254] addrconf_add_dev+0xe2/0x170 [ 6446.609744][ T254] inet6_addr_add+0x12f/0xa40 [ 6446.609744][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6446.609744][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6446.609744][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.609744][ T254] netlink_unicast+0x449/0x710 [ 6446.609744][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.609744][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.609744][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.609744][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.609744][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.609744][ T254] [ 6446.612103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.612103][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6446.612103][ T254] ipv6_find_idev+0x102/0x170 [ 6446.612103][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6446.612103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6446.612103][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.612103][ T254] netlink_unicast+0x449/0x710 [ 6446.612103][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.612103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.612103][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.612103][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.612103][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.612103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6446.612103][ T254] [ 6446.613948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6446.613948][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6446.613948][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6446.613948][ T254] ipv6_find_idev+0x102/0x170 [ 6446.613948][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6446.613948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6446.613948][ T254] netlink_rcv_skb+0x130/0x360 [ 6446.613948][ T254] netlink_unicast+0x449/0x710 [ 6446.613948][ T254] netlink_sendmsg+0x723/0xbe0 [ 6446.613948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6446.613948][ T254] ___sys_sendmsg+0xee/0x170 [ 6446.613948][ T254] __sys_sendmsg+0xcd/0x170 [ 6446.613948][ T254] do_syscall_64+0xc6/0x1e0 [ 6446.613948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6446.613948][ T254] [ 6456.727859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6456.728323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.728323][ T254] dst_init+0x84/0x4a0 [ 6456.728323][ T254] dst_alloc+0x97/0x150 [ 6456.728323][ T254] ip6_dst_alloc+0x23/0x90 [ 6456.728323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6456.728323][ T254] ip6_pol_route+0x56f/0x840 [ 6456.728323][ T254] fib6_rule_lookup+0x334/0x630 [ 6456.728323][ T254] ip6_route_output_flags+0x259/0x480 [ 6456.728323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6456.728323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6456.728323][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.728323][ T254] netlink_unicast+0x449/0x710 [ 6456.728323][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.728323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.728323][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.728323][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.728323][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.728323][ T254] [ 6456.730541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.730541][ T254] netdev_get_by_index+0x5e/0x80 [ 6456.730541][ T254] fib6_nh_init+0x3d8/0x1580 [ 6456.730541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6456.730541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6456.730541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6456.730541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6456.730541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6456.730541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6456.730541][ T254] addrconf_dad_begin+0x310/0x670 [ 6456.730541][ T254] addrconf_dad_work+0x10b/0xab0 [ 6456.730541][ T254] process_one_work+0x84d/0x18a0 [ 6456.730541][ T254] worker_thread+0x587/0xd30 [ 6456.730541][ T254] kthread+0x28a/0x350 [ 6456.730541][ T254] ret_from_fork+0x31/0x70 [ 6456.730541][ T254] ret_from_fork_asm+0x1a/0x30 [ 6456.730541][ T254] [ 6456.732702][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.732702][ T254] netdev_get_by_index+0x5e/0x80 [ 6456.732702][ T254] fib6_nh_init+0x3d8/0x1580 [ 6456.732702][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6456.732702][ T254] ip6_route_add+0x1c/0x140 [ 6456.732702][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6456.732702][ T254] inet6_addr_add+0x4f8/0xa40 [ 6456.732702][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6456.732702][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6456.732702][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.732702][ T254] netlink_unicast+0x449/0x710 [ 6456.732702][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.732702][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.732702][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.732702][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.732702][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.732702][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6456.732702][ T254] [ 6456.734949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.734949][ T254] netdev_get_by_index+0x5e/0x80 [ 6456.734949][ T254] fib6_nh_init+0x3d8/0x1580 [ 6456.734949][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6456.734949][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6456.734949][ T254] ipv6_add_addr+0x411/0x2000 [ 6456.734949][ T254] inet6_addr_add+0x30e/0xa40 [ 6456.734949][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6456.734949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6456.734949][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.734949][ T254] netlink_unicast+0x449/0x710 [ 6456.734949][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.734949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.734949][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.734949][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.734949][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.734949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6456.734949][ T254] [ 6456.737199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.737199][ T254] netdev_get_by_index+0x5e/0x80 [ 6456.737199][ T254] fib6_nh_init+0x3d8/0x1580 [ 6456.737199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6456.737199][ T254] ip6_route_add+0x1c/0x140 [ 6456.737199][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6456.737199][ T254] addrconf_add_dev+0xe2/0x170 [ 6456.737199][ T254] inet6_addr_add+0x12f/0xa40 [ 6456.737199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6456.737199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6456.737199][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.737199][ T254] netlink_unicast+0x449/0x710 [ 6456.737199][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.737199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.737199][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.737199][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.737199][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.737199][ T254] [ 6456.739422][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.739422][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6456.739422][ T254] ipv6_find_idev+0x102/0x170 [ 6456.739422][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6456.739422][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6456.739422][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.739422][ T254] netlink_unicast+0x449/0x710 [ 6456.739422][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.739422][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.739422][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.739422][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.739422][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.739422][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6456.739422][ T254] [ 6456.741149][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6456.741149][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6456.741149][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6456.741149][ T254] ipv6_find_idev+0x102/0x170 [ 6456.741149][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6456.741149][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6456.741149][ T254] netlink_rcv_skb+0x130/0x360 [ 6456.741149][ T254] netlink_unicast+0x449/0x710 [ 6456.741149][ T254] netlink_sendmsg+0x723/0xbe0 [ 6456.741149][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6456.741149][ T254] ___sys_sendmsg+0xee/0x170 [ 6456.741149][ T254] __sys_sendmsg+0xcd/0x170 [ 6456.741149][ T254] do_syscall_64+0xc6/0x1e0 [ 6456.741149][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6456.741149][ T254] [ 6466.847778][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6466.848191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.848191][ T254] dst_init+0x84/0x4a0 [ 6466.848191][ T254] dst_alloc+0x97/0x150 [ 6466.848191][ T254] ip6_dst_alloc+0x23/0x90 [ 6466.848191][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6466.848191][ T254] ip6_pol_route+0x56f/0x840 [ 6466.848191][ T254] fib6_rule_lookup+0x334/0x630 [ 6466.848191][ T254] ip6_route_output_flags+0x259/0x480 [ 6466.848191][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6466.848191][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6466.848191][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.848191][ T254] netlink_unicast+0x449/0x710 [ 6466.848191][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.848191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.848191][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.848191][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.848191][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.848191][ T254] [ 6466.850382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.850382][ T254] netdev_get_by_index+0x5e/0x80 [ 6466.850382][ T254] fib6_nh_init+0x3d8/0x1580 [ 6466.850382][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6466.850382][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6466.850382][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6466.850382][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6466.850382][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6466.850382][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6466.850382][ T254] addrconf_dad_begin+0x310/0x670 [ 6466.850382][ T254] addrconf_dad_work+0x10b/0xab0 [ 6466.850382][ T254] process_one_work+0x84d/0x18a0 [ 6466.850382][ T254] worker_thread+0x587/0xd30 [ 6466.850382][ T254] kthread+0x28a/0x350 [ 6466.850382][ T254] ret_from_fork+0x31/0x70 [ 6466.850382][ T254] ret_from_fork_asm+0x1a/0x30 [ 6466.850382][ T254] [ 6466.852530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.852530][ T254] netdev_get_by_index+0x5e/0x80 [ 6466.852530][ T254] fib6_nh_init+0x3d8/0x1580 [ 6466.852530][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6466.852530][ T254] ip6_route_add+0x1c/0x140 [ 6466.852530][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6466.852530][ T254] inet6_addr_add+0x4f8/0xa40 [ 6466.852530][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6466.852530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6466.852530][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.852530][ T254] netlink_unicast+0x449/0x710 [ 6466.852530][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.852530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.852530][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.852530][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.852530][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.852530][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6466.852530][ T254] [ 6466.854771][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.854771][ T254] netdev_get_by_index+0x5e/0x80 [ 6466.854771][ T254] fib6_nh_init+0x3d8/0x1580 [ 6466.854771][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6466.854771][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6466.854771][ T254] ipv6_add_addr+0x411/0x2000 [ 6466.854771][ T254] inet6_addr_add+0x30e/0xa40 [ 6466.854771][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6466.854771][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6466.854771][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.854771][ T254] netlink_unicast+0x449/0x710 [ 6466.854771][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.854771][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.854771][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.854771][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.854771][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.854771][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6466.854771][ T254] [ 6466.857015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.857015][ T254] netdev_get_by_index+0x5e/0x80 [ 6466.857015][ T254] fib6_nh_init+0x3d8/0x1580 [ 6466.857015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6466.857015][ T254] ip6_route_add+0x1c/0x140 [ 6466.857015][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6466.857015][ T254] addrconf_add_dev+0xe2/0x170 [ 6466.857015][ T254] inet6_addr_add+0x12f/0xa40 [ 6466.857015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6466.857015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6466.857015][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.857015][ T254] netlink_unicast+0x449/0x710 [ 6466.857015][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.857015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.857015][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.857015][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.857015][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.857015][ T254] [ 6466.859224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.859224][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6466.859224][ T254] ipv6_find_idev+0x102/0x170 [ 6466.859224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6466.859224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6466.859224][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.859224][ T254] netlink_unicast+0x449/0x710 [ 6466.859224][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.859224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.859224][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.859224][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.859224][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.859224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6466.859224][ T254] [ 6466.860961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6466.860961][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6466.860961][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6466.860961][ T254] ipv6_find_idev+0x102/0x170 [ 6466.860961][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6466.860961][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6466.860961][ T254] netlink_rcv_skb+0x130/0x360 [ 6466.860961][ T254] netlink_unicast+0x449/0x710 [ 6466.860961][ T254] netlink_sendmsg+0x723/0xbe0 [ 6466.860961][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6466.860961][ T254] ___sys_sendmsg+0xee/0x170 [ 6466.860961][ T254] __sys_sendmsg+0xcd/0x170 [ 6466.860961][ T254] do_syscall_64+0xc6/0x1e0 [ 6466.860961][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6466.860961][ T254] [ 6476.943870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6476.944294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.944294][ T254] dst_init+0x84/0x4a0 [ 6476.944294][ T254] dst_alloc+0x97/0x150 [ 6476.944294][ T254] ip6_dst_alloc+0x23/0x90 [ 6476.944294][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6476.944294][ T254] ip6_pol_route+0x56f/0x840 [ 6476.944294][ T254] fib6_rule_lookup+0x334/0x630 [ 6476.944294][ T254] ip6_route_output_flags+0x259/0x480 [ 6476.944294][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6476.944294][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6476.944294][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.944294][ T254] netlink_unicast+0x449/0x710 [ 6476.944294][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.944294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.944294][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.944294][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.944294][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.944294][ T254] [ 6476.946510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.946510][ T254] netdev_get_by_index+0x5e/0x80 [ 6476.946510][ T254] fib6_nh_init+0x3d8/0x1580 [ 6476.946510][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6476.946510][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6476.946510][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6476.946510][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6476.946510][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6476.946510][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6476.946510][ T254] addrconf_dad_begin+0x310/0x670 [ 6476.946510][ T254] addrconf_dad_work+0x10b/0xab0 [ 6476.946510][ T254] process_one_work+0x84d/0x18a0 [ 6476.946510][ T254] worker_thread+0x587/0xd30 [ 6476.946510][ T254] kthread+0x28a/0x350 [ 6476.946510][ T254] ret_from_fork+0x31/0x70 [ 6476.946510][ T254] ret_from_fork_asm+0x1a/0x30 [ 6476.946510][ T254] [ 6476.948688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.948688][ T254] netdev_get_by_index+0x5e/0x80 [ 6476.948688][ T254] fib6_nh_init+0x3d8/0x1580 [ 6476.948688][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6476.948688][ T254] ip6_route_add+0x1c/0x140 [ 6476.948688][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6476.948688][ T254] inet6_addr_add+0x4f8/0xa40 [ 6476.948688][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6476.948688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6476.948688][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.948688][ T254] netlink_unicast+0x449/0x710 [ 6476.948688][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.948688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.948688][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.948688][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.948688][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.948688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6476.948688][ T254] [ 6476.950948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.950948][ T254] netdev_get_by_index+0x5e/0x80 [ 6476.950948][ T254] fib6_nh_init+0x3d8/0x1580 [ 6476.950948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6476.950948][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6476.950948][ T254] ipv6_add_addr+0x411/0x2000 [ 6476.950948][ T254] inet6_addr_add+0x30e/0xa40 [ 6476.950948][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6476.950948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6476.950948][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.950948][ T254] netlink_unicast+0x449/0x710 [ 6476.950948][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.950948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.950948][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.950948][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.950948][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.950948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6476.950948][ T254] [ 6476.953206][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.953206][ T254] netdev_get_by_index+0x5e/0x80 [ 6476.953206][ T254] fib6_nh_init+0x3d8/0x1580 [ 6476.953206][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6476.953206][ T254] ip6_route_add+0x1c/0x140 [ 6476.953206][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6476.953206][ T254] addrconf_add_dev+0xe2/0x170 [ 6476.953206][ T254] inet6_addr_add+0x12f/0xa40 [ 6476.953206][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6476.953206][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6476.953206][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.953206][ T254] netlink_unicast+0x449/0x710 [ 6476.953206][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.953206][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.953206][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.953206][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.953206][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.953206][ T254] [ 6476.955439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.955439][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6476.955439][ T254] ipv6_find_idev+0x102/0x170 [ 6476.955439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6476.955439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6476.955439][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.955439][ T254] netlink_unicast+0x449/0x710 [ 6476.955439][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.955439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.955439][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.955439][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.955439][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.955439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6476.955439][ T254] [ 6476.957190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6476.957190][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6476.957190][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6476.957190][ T254] ipv6_find_idev+0x102/0x170 [ 6476.957190][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6476.957190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6476.957190][ T254] netlink_rcv_skb+0x130/0x360 [ 6476.957190][ T254] netlink_unicast+0x449/0x710 [ 6476.957190][ T254] netlink_sendmsg+0x723/0xbe0 [ 6476.957190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6476.957190][ T254] ___sys_sendmsg+0xee/0x170 [ 6476.957190][ T254] __sys_sendmsg+0xcd/0x170 [ 6476.957190][ T254] do_syscall_64+0xc6/0x1e0 [ 6476.957190][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6476.957190][ T254] [ 6487.199788][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6487.200280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.200280][ T254] dst_init+0x84/0x4a0 [ 6487.200280][ T254] dst_alloc+0x97/0x150 [ 6487.200280][ T254] ip6_dst_alloc+0x23/0x90 [ 6487.200280][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6487.200280][ T254] ip6_pol_route+0x56f/0x840 [ 6487.200280][ T254] fib6_rule_lookup+0x334/0x630 [ 6487.200280][ T254] ip6_route_output_flags+0x259/0x480 [ 6487.200280][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6487.200280][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6487.200280][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.200280][ T254] netlink_unicast+0x449/0x710 [ 6487.200280][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.200280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.200280][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.200280][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.200280][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.200280][ T254] [ 6487.202490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.202490][ T254] netdev_get_by_index+0x5e/0x80 [ 6487.202490][ T254] fib6_nh_init+0x3d8/0x1580 [ 6487.202490][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6487.202490][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6487.202490][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6487.202490][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6487.202490][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6487.202490][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6487.202490][ T254] addrconf_dad_begin+0x310/0x670 [ 6487.202490][ T254] addrconf_dad_work+0x10b/0xab0 [ 6487.202490][ T254] process_one_work+0x84d/0x18a0 [ 6487.202490][ T254] worker_thread+0x587/0xd30 [ 6487.202490][ T254] kthread+0x28a/0x350 [ 6487.202490][ T254] ret_from_fork+0x31/0x70 [ 6487.202490][ T254] ret_from_fork_asm+0x1a/0x30 [ 6487.202490][ T254] [ 6487.204652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.204652][ T254] netdev_get_by_index+0x5e/0x80 [ 6487.204652][ T254] fib6_nh_init+0x3d8/0x1580 [ 6487.204652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6487.204652][ T254] ip6_route_add+0x1c/0x140 [ 6487.204652][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6487.204652][ T254] inet6_addr_add+0x4f8/0xa40 [ 6487.204652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6487.204652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6487.204652][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.204652][ T254] netlink_unicast+0x449/0x710 [ 6487.204652][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.204652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.204652][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.204652][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.204652][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.204652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6487.204652][ T254] [ 6487.206935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.206935][ T254] netdev_get_by_index+0x5e/0x80 [ 6487.206935][ T254] fib6_nh_init+0x3d8/0x1580 [ 6487.206935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6487.206935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6487.206935][ T254] ipv6_add_addr+0x411/0x2000 [ 6487.206935][ T254] inet6_addr_add+0x30e/0xa40 [ 6487.206935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6487.206935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6487.206935][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.206935][ T254] netlink_unicast+0x449/0x710 [ 6487.206935][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.206935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.206935][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.206935][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.206935][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.206935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6487.206935][ T254] [ 6487.209237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.209237][ T254] netdev_get_by_index+0x5e/0x80 [ 6487.209237][ T254] fib6_nh_init+0x3d8/0x1580 [ 6487.209237][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6487.209237][ T254] ip6_route_add+0x1c/0x140 [ 6487.209237][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6487.209237][ T254] addrconf_add_dev+0xe2/0x170 [ 6487.209237][ T254] inet6_addr_add+0x12f/0xa40 [ 6487.209237][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6487.209237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6487.209237][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.209237][ T254] netlink_unicast+0x449/0x710 [ 6487.209237][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.209237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.209237][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.209237][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.209237][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.209237][ T254] [ 6487.211460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.211460][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6487.211460][ T254] ipv6_find_idev+0x102/0x170 [ 6487.211460][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6487.211460][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6487.211460][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.211460][ T254] netlink_unicast+0x449/0x710 [ 6487.211460][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.211460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.211460][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.211460][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.211460][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.211460][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6487.211460][ T254] [ 6487.213202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6487.213202][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6487.213202][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6487.213202][ T254] ipv6_find_idev+0x102/0x170 [ 6487.213202][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6487.213202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6487.213202][ T254] netlink_rcv_skb+0x130/0x360 [ 6487.213202][ T254] netlink_unicast+0x449/0x710 [ 6487.213202][ T254] netlink_sendmsg+0x723/0xbe0 [ 6487.213202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6487.213202][ T254] ___sys_sendmsg+0xee/0x170 [ 6487.213202][ T254] __sys_sendmsg+0xcd/0x170 [ 6487.213202][ T254] do_syscall_64+0xc6/0x1e0 [ 6487.213202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6487.213202][ T254] [ 6497.447849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6497.448304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.448304][ T254] dst_init+0x84/0x4a0 [ 6497.448304][ T254] dst_alloc+0x97/0x150 [ 6497.448304][ T254] ip6_dst_alloc+0x23/0x90 [ 6497.448304][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6497.448304][ T254] ip6_pol_route+0x56f/0x840 [ 6497.448304][ T254] fib6_rule_lookup+0x334/0x630 [ 6497.448304][ T254] ip6_route_output_flags+0x259/0x480 [ 6497.448304][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6497.448304][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6497.448304][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.448304][ T254] netlink_unicast+0x449/0x710 [ 6497.448304][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.448304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.448304][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.448304][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.448304][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.448304][ T254] [ 6497.450631][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.450631][ T254] netdev_get_by_index+0x5e/0x80 [ 6497.450631][ T254] fib6_nh_init+0x3d8/0x1580 [ 6497.450631][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6497.450631][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6497.450631][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6497.450631][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6497.450631][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6497.450631][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6497.450631][ T254] addrconf_dad_begin+0x310/0x670 [ 6497.450631][ T254] addrconf_dad_work+0x10b/0xab0 [ 6497.450631][ T254] process_one_work+0x84d/0x18a0 [ 6497.450631][ T254] worker_thread+0x587/0xd30 [ 6497.450631][ T254] kthread+0x28a/0x350 [ 6497.450631][ T254] ret_from_fork+0x31/0x70 [ 6497.450631][ T254] ret_from_fork_asm+0x1a/0x30 [ 6497.450631][ T254] [ 6497.452925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.452925][ T254] netdev_get_by_index+0x5e/0x80 [ 6497.452925][ T254] fib6_nh_init+0x3d8/0x1580 [ 6497.452925][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6497.452925][ T254] ip6_route_add+0x1c/0x140 [ 6497.452925][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6497.452925][ T254] inet6_addr_add+0x4f8/0xa40 [ 6497.452925][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6497.452925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6497.452925][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.452925][ T254] netlink_unicast+0x449/0x710 [ 6497.452925][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.452925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.452925][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.452925][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.452925][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.452925][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6497.452925][ T254] [ 6497.455331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.455331][ T254] netdev_get_by_index+0x5e/0x80 [ 6497.455331][ T254] fib6_nh_init+0x3d8/0x1580 [ 6497.455331][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6497.455331][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6497.455331][ T254] ipv6_add_addr+0x411/0x2000 [ 6497.455331][ T254] inet6_addr_add+0x30e/0xa40 [ 6497.455331][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6497.455331][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6497.455331][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.455331][ T254] netlink_unicast+0x449/0x710 [ 6497.455331][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.455331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.455331][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.455331][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.455331][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.455331][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6497.455331][ T254] [ 6497.458313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.458313][ T254] netdev_get_by_index+0x5e/0x80 [ 6497.458313][ T254] fib6_nh_init+0x3d8/0x1580 [ 6497.458313][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6497.458313][ T254] ip6_route_add+0x1c/0x140 [ 6497.458313][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6497.458313][ T254] addrconf_add_dev+0xe2/0x170 [ 6497.458313][ T254] inet6_addr_add+0x12f/0xa40 [ 6497.458313][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6497.458313][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6497.458313][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.458313][ T254] netlink_unicast+0x449/0x710 [ 6497.458313][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.458313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.458313][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.458313][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.458313][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.458313][ T254] [ 6497.460706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.460706][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6497.460706][ T254] ipv6_find_idev+0x102/0x170 [ 6497.460706][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6497.460706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6497.460706][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.460706][ T254] netlink_unicast+0x449/0x710 [ 6497.460706][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.460706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.460706][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.460706][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.460706][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.460706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6497.460706][ T254] [ 6497.462582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6497.462582][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6497.462582][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6497.462582][ T254] ipv6_find_idev+0x102/0x170 [ 6497.462582][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6497.462582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6497.462582][ T254] netlink_rcv_skb+0x130/0x360 [ 6497.462582][ T254] netlink_unicast+0x449/0x710 [ 6497.462582][ T254] netlink_sendmsg+0x723/0xbe0 [ 6497.462582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6497.462582][ T254] ___sys_sendmsg+0xee/0x170 [ 6497.462582][ T254] __sys_sendmsg+0xcd/0x170 [ 6497.462582][ T254] do_syscall_64+0xc6/0x1e0 [ 6497.462582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6497.462582][ T254] [ 6507.703865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6507.704294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.704294][ T254] dst_init+0x84/0x4a0 [ 6507.704294][ T254] dst_alloc+0x97/0x150 [ 6507.704294][ T254] ip6_dst_alloc+0x23/0x90 [ 6507.704294][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6507.704294][ T254] ip6_pol_route+0x56f/0x840 [ 6507.704294][ T254] fib6_rule_lookup+0x334/0x630 [ 6507.704294][ T254] ip6_route_output_flags+0x259/0x480 [ 6507.704294][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6507.704294][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6507.704294][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.704294][ T254] netlink_unicast+0x449/0x710 [ 6507.704294][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.704294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.704294][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.704294][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.704294][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.704294][ T254] [ 6507.706639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.706639][ T254] netdev_get_by_index+0x5e/0x80 [ 6507.706639][ T254] fib6_nh_init+0x3d8/0x1580 [ 6507.706639][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6507.706639][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6507.706639][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6507.706639][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6507.706639][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6507.706639][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6507.706639][ T254] addrconf_dad_begin+0x310/0x670 [ 6507.706639][ T254] addrconf_dad_work+0x10b/0xab0 [ 6507.706639][ T254] process_one_work+0x84d/0x18a0 [ 6507.706639][ T254] worker_thread+0x587/0xd30 [ 6507.706639][ T254] kthread+0x28a/0x350 [ 6507.706639][ T254] ret_from_fork+0x31/0x70 [ 6507.706639][ T254] ret_from_fork_asm+0x1a/0x30 [ 6507.706639][ T254] [ 6507.708963][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.708963][ T254] netdev_get_by_index+0x5e/0x80 [ 6507.708963][ T254] fib6_nh_init+0x3d8/0x1580 [ 6507.708963][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6507.708963][ T254] ip6_route_add+0x1c/0x140 [ 6507.708963][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6507.708963][ T254] inet6_addr_add+0x4f8/0xa40 [ 6507.708963][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6507.708963][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6507.708963][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.708963][ T254] netlink_unicast+0x449/0x710 [ 6507.708963][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.708963][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.708963][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.708963][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.708963][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.708963][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6507.708963][ T254] [ 6507.711347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.711347][ T254] netdev_get_by_index+0x5e/0x80 [ 6507.711347][ T254] fib6_nh_init+0x3d8/0x1580 [ 6507.711347][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6507.711347][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6507.711347][ T254] ipv6_add_addr+0x411/0x2000 [ 6507.711347][ T254] inet6_addr_add+0x30e/0xa40 [ 6507.711347][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6507.711347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6507.711347][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.711347][ T254] netlink_unicast+0x449/0x710 [ 6507.711347][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.711347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.711347][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.711347][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.711347][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.711347][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6507.711347][ T254] [ 6507.713730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.713730][ T254] netdev_get_by_index+0x5e/0x80 [ 6507.713730][ T254] fib6_nh_init+0x3d8/0x1580 [ 6507.713730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6507.713730][ T254] ip6_route_add+0x1c/0x140 [ 6507.713730][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6507.713730][ T254] addrconf_add_dev+0xe2/0x170 [ 6507.713730][ T254] inet6_addr_add+0x12f/0xa40 [ 6507.713730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6507.713730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6507.713730][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.713730][ T254] netlink_unicast+0x449/0x710 [ 6507.713730][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.713730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.713730][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.713730][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.713730][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.713730][ T254] [ 6507.716522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.716522][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6507.716522][ T254] ipv6_find_idev+0x102/0x170 [ 6507.716522][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6507.716522][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6507.716522][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.716522][ T254] netlink_unicast+0x449/0x710 [ 6507.716522][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.716522][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.716522][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.716522][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.716522][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.716522][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6507.716522][ T254] [ 6507.718397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6507.718397][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6507.718397][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6507.718397][ T254] ipv6_find_idev+0x102/0x170 [ 6507.718397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6507.718397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6507.718397][ T254] netlink_rcv_skb+0x130/0x360 [ 6507.718397][ T254] netlink_unicast+0x449/0x710 [ 6507.718397][ T254] netlink_sendmsg+0x723/0xbe0 [ 6507.718397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6507.718397][ T254] ___sys_sendmsg+0xee/0x170 [ 6507.718397][ T254] __sys_sendmsg+0xcd/0x170 [ 6507.718397][ T254] do_syscall_64+0xc6/0x1e0 [ 6507.718397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6507.718397][ T254] [ 6517.959886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6517.960381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.960381][ T254] dst_init+0x84/0x4a0 [ 6517.960381][ T254] dst_alloc+0x97/0x150 [ 6517.960381][ T254] ip6_dst_alloc+0x23/0x90 [ 6517.960381][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6517.960381][ T254] ip6_pol_route+0x56f/0x840 [ 6517.960381][ T254] fib6_rule_lookup+0x334/0x630 [ 6517.960381][ T254] ip6_route_output_flags+0x259/0x480 [ 6517.960381][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6517.960381][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6517.960381][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.960381][ T254] netlink_unicast+0x449/0x710 [ 6517.960381][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.960381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.960381][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.960381][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.960381][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.960381][ T254] [ 6517.962581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.962581][ T254] netdev_get_by_index+0x5e/0x80 [ 6517.962581][ T254] fib6_nh_init+0x3d8/0x1580 [ 6517.962581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6517.962581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6517.962581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6517.962581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6517.962581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6517.962581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6517.962581][ T254] addrconf_dad_begin+0x310/0x670 [ 6517.962581][ T254] addrconf_dad_work+0x10b/0xab0 [ 6517.962581][ T254] process_one_work+0x84d/0x18a0 [ 6517.962581][ T254] worker_thread+0x587/0xd30 [ 6517.962581][ T254] kthread+0x28a/0x350 [ 6517.962581][ T254] ret_from_fork+0x31/0x70 [ 6517.962581][ T254] ret_from_fork_asm+0x1a/0x30 [ 6517.962581][ T254] [ 6517.964736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.964736][ T254] netdev_get_by_index+0x5e/0x80 [ 6517.964736][ T254] fib6_nh_init+0x3d8/0x1580 [ 6517.964736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6517.964736][ T254] ip6_route_add+0x1c/0x140 [ 6517.964736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6517.964736][ T254] inet6_addr_add+0x4f8/0xa40 [ 6517.964736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6517.964736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6517.964736][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.964736][ T254] netlink_unicast+0x449/0x710 [ 6517.964736][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.964736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.964736][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.964736][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.964736][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.964736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6517.964736][ T254] [ 6517.967022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.967022][ T254] netdev_get_by_index+0x5e/0x80 [ 6517.967022][ T254] fib6_nh_init+0x3d8/0x1580 [ 6517.967022][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6517.967022][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6517.967022][ T254] ipv6_add_addr+0x411/0x2000 [ 6517.967022][ T254] inet6_addr_add+0x30e/0xa40 [ 6517.967022][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6517.967022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6517.967022][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.967022][ T254] netlink_unicast+0x449/0x710 [ 6517.967022][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.967022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.967022][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.967022][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.967022][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.967022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6517.967022][ T254] [ 6517.969269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.969269][ T254] netdev_get_by_index+0x5e/0x80 [ 6517.969269][ T254] fib6_nh_init+0x3d8/0x1580 [ 6517.969269][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6517.969269][ T254] ip6_route_add+0x1c/0x140 [ 6517.969269][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6517.969269][ T254] addrconf_add_dev+0xe2/0x170 [ 6517.969269][ T254] inet6_addr_add+0x12f/0xa40 [ 6517.969269][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6517.969269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6517.969269][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.969269][ T254] netlink_unicast+0x449/0x710 [ 6517.969269][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.969269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.969269][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.969269][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.969269][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.969269][ T254] [ 6517.971484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.971484][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6517.971484][ T254] ipv6_find_idev+0x102/0x170 [ 6517.971484][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6517.971484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6517.971484][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.971484][ T254] netlink_unicast+0x449/0x710 [ 6517.971484][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.971484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.971484][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.971484][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.971484][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.971484][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6517.971484][ T254] [ 6517.973215][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6517.973215][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6517.973215][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6517.973215][ T254] ipv6_find_idev+0x102/0x170 [ 6517.973215][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6517.973215][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6517.973215][ T254] netlink_rcv_skb+0x130/0x360 [ 6517.973215][ T254] netlink_unicast+0x449/0x710 [ 6517.973215][ T254] netlink_sendmsg+0x723/0xbe0 [ 6517.973215][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6517.973215][ T254] ___sys_sendmsg+0xee/0x170 [ 6517.973215][ T254] __sys_sendmsg+0xcd/0x170 [ 6517.973215][ T254] do_syscall_64+0xc6/0x1e0 [ 6517.973215][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6517.973215][ T254] [ 6528.215890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6528.216350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.216350][ T254] dst_init+0x84/0x4a0 [ 6528.216350][ T254] dst_alloc+0x97/0x150 [ 6528.216350][ T254] ip6_dst_alloc+0x23/0x90 [ 6528.216350][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6528.216350][ T254] ip6_pol_route+0x56f/0x840 [ 6528.216350][ T254] fib6_rule_lookup+0x334/0x630 [ 6528.216350][ T254] ip6_route_output_flags+0x259/0x480 [ 6528.216350][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6528.216350][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6528.216350][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.216350][ T254] netlink_unicast+0x449/0x710 [ 6528.216350][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.216350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.216350][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.216350][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.216350][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.216350][ T254] [ 6528.218720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.218720][ T254] netdev_get_by_index+0x5e/0x80 [ 6528.218720][ T254] fib6_nh_init+0x3d8/0x1580 [ 6528.218720][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6528.218720][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6528.218720][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6528.218720][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6528.218720][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6528.218720][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6528.218720][ T254] addrconf_dad_begin+0x310/0x670 [ 6528.218720][ T254] addrconf_dad_work+0x10b/0xab0 [ 6528.218720][ T254] process_one_work+0x84d/0x18a0 [ 6528.218720][ T254] worker_thread+0x587/0xd30 [ 6528.218720][ T254] kthread+0x28a/0x350 [ 6528.218720][ T254] ret_from_fork+0x31/0x70 [ 6528.218720][ T254] ret_from_fork_asm+0x1a/0x30 [ 6528.218720][ T254] [ 6528.221031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.221031][ T254] netdev_get_by_index+0x5e/0x80 [ 6528.221031][ T254] fib6_nh_init+0x3d8/0x1580 [ 6528.221031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6528.221031][ T254] ip6_route_add+0x1c/0x140 [ 6528.221031][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6528.221031][ T254] inet6_addr_add+0x4f8/0xa40 [ 6528.221031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6528.221031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6528.221031][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.221031][ T254] netlink_unicast+0x449/0x710 [ 6528.221031][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.221031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.221031][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.221031][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.221031][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.221031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6528.221031][ T254] [ 6528.223458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.223458][ T254] netdev_get_by_index+0x5e/0x80 [ 6528.223458][ T254] fib6_nh_init+0x3d8/0x1580 [ 6528.223458][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6528.223458][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6528.223458][ T254] ipv6_add_addr+0x411/0x2000 [ 6528.223458][ T254] inet6_addr_add+0x30e/0xa40 [ 6528.223458][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6528.223458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6528.223458][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.223458][ T254] netlink_unicast+0x449/0x710 [ 6528.223458][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.223458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.223458][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.223458][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.223458][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.223458][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6528.223458][ T254] [ 6528.225891][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.225891][ T254] netdev_get_by_index+0x5e/0x80 [ 6528.225891][ T254] fib6_nh_init+0x3d8/0x1580 [ 6528.225891][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6528.225891][ T254] ip6_route_add+0x1c/0x140 [ 6528.225891][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6528.225891][ T254] addrconf_add_dev+0xe2/0x170 [ 6528.225891][ T254] inet6_addr_add+0x12f/0xa40 [ 6528.225891][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6528.225891][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6528.225891][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.225891][ T254] netlink_unicast+0x449/0x710 [ 6528.225891][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.225891][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.225891][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.225891][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.225891][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.225891][ T254] [ 6528.228287][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.228287][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6528.228287][ T254] ipv6_find_idev+0x102/0x170 [ 6528.228287][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6528.228287][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6528.228287][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.228287][ T254] netlink_unicast+0x449/0x710 [ 6528.228287][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.228287][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.228287][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.228287][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.228287][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.228287][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6528.228287][ T254] [ 6528.230172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6528.230172][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6528.230172][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6528.230172][ T254] ipv6_find_idev+0x102/0x170 [ 6528.230172][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6528.230172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6528.230172][ T254] netlink_rcv_skb+0x130/0x360 [ 6528.230172][ T254] netlink_unicast+0x449/0x710 [ 6528.230172][ T254] netlink_sendmsg+0x723/0xbe0 [ 6528.230172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6528.230172][ T254] ___sys_sendmsg+0xee/0x170 [ 6528.230172][ T254] __sys_sendmsg+0xcd/0x170 [ 6528.230172][ T254] do_syscall_64+0xc6/0x1e0 [ 6528.230172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6528.230172][ T254] [ 6538.239883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6538.240335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.240335][ T254] dst_init+0x84/0x4a0 [ 6538.240335][ T254] dst_alloc+0x97/0x150 [ 6538.240335][ T254] ip6_dst_alloc+0x23/0x90 [ 6538.240335][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6538.240335][ T254] ip6_pol_route+0x56f/0x840 [ 6538.240335][ T254] fib6_rule_lookup+0x334/0x630 [ 6538.240335][ T254] ip6_route_output_flags+0x259/0x480 [ 6538.240335][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6538.240335][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6538.240335][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.240335][ T254] netlink_unicast+0x449/0x710 [ 6538.240335][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.240335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.240335][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.240335][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.240335][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.240335][ T254] [ 6538.242683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.242683][ T254] netdev_get_by_index+0x5e/0x80 [ 6538.242683][ T254] fib6_nh_init+0x3d8/0x1580 [ 6538.242683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6538.242683][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6538.242683][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6538.242683][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6538.242683][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6538.242683][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6538.242683][ T254] addrconf_dad_begin+0x310/0x670 [ 6538.242683][ T254] addrconf_dad_work+0x10b/0xab0 [ 6538.242683][ T254] process_one_work+0x84d/0x18a0 [ 6538.242683][ T254] worker_thread+0x587/0xd30 [ 6538.242683][ T254] kthread+0x28a/0x350 [ 6538.242683][ T254] ret_from_fork+0x31/0x70 [ 6538.242683][ T254] ret_from_fork_asm+0x1a/0x30 [ 6538.242683][ T254] [ 6538.244962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.244962][ T254] netdev_get_by_index+0x5e/0x80 [ 6538.244962][ T254] fib6_nh_init+0x3d8/0x1580 [ 6538.244962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6538.244962][ T254] ip6_route_add+0x1c/0x140 [ 6538.244962][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6538.244962][ T254] inet6_addr_add+0x4f8/0xa40 [ 6538.244962][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6538.244962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6538.244962][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.244962][ T254] netlink_unicast+0x449/0x710 [ 6538.244962][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.244962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.244962][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.244962][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.244962][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.244962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6538.244962][ T254] [ 6538.247389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.247389][ T254] netdev_get_by_index+0x5e/0x80 [ 6538.247389][ T254] fib6_nh_init+0x3d8/0x1580 [ 6538.247389][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6538.247389][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6538.247389][ T254] ipv6_add_addr+0x411/0x2000 [ 6538.247389][ T254] inet6_addr_add+0x30e/0xa40 [ 6538.247389][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6538.247389][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6538.247389][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.247389][ T254] netlink_unicast+0x449/0x710 [ 6538.247389][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.247389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.247389][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.247389][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.247389][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.247389][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6538.247389][ T254] [ 6538.249824][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.249824][ T254] netdev_get_by_index+0x5e/0x80 [ 6538.249824][ T254] fib6_nh_init+0x3d8/0x1580 [ 6538.249824][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6538.249824][ T254] ip6_route_add+0x1c/0x140 [ 6538.249824][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6538.249824][ T254] addrconf_add_dev+0xe2/0x170 [ 6538.249824][ T254] inet6_addr_add+0x12f/0xa40 [ 6538.249824][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6538.249824][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6538.249824][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.249824][ T254] netlink_unicast+0x449/0x710 [ 6538.249824][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.249824][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.249824][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.249824][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.249824][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.249824][ T254] [ 6538.252198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.252198][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6538.252198][ T254] ipv6_find_idev+0x102/0x170 [ 6538.252198][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6538.252198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6538.252198][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.252198][ T254] netlink_unicast+0x449/0x710 [ 6538.252198][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.252198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.252198][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.252198][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.252198][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.252198][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6538.252198][ T254] [ 6538.254052][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6538.254052][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6538.254052][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6538.254052][ T254] ipv6_find_idev+0x102/0x170 [ 6538.254052][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6538.254052][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6538.254052][ T254] netlink_rcv_skb+0x130/0x360 [ 6538.254052][ T254] netlink_unicast+0x449/0x710 [ 6538.254052][ T254] netlink_sendmsg+0x723/0xbe0 [ 6538.254052][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6538.254052][ T254] ___sys_sendmsg+0xee/0x170 [ 6538.254052][ T254] __sys_sendmsg+0xcd/0x170 [ 6538.254052][ T254] do_syscall_64+0xc6/0x1e0 [ 6538.254052][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6538.254052][ T254] [ 6548.335916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6548.336382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.336382][ T254] dst_init+0x84/0x4a0 [ 6548.336382][ T254] dst_alloc+0x97/0x150 [ 6548.336382][ T254] ip6_dst_alloc+0x23/0x90 [ 6548.336382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6548.336382][ T254] ip6_pol_route+0x56f/0x840 [ 6548.336382][ T254] fib6_rule_lookup+0x334/0x630 [ 6548.336382][ T254] ip6_route_output_flags+0x259/0x480 [ 6548.336382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6548.336382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6548.336382][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.336382][ T254] netlink_unicast+0x449/0x710 [ 6548.336382][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.336382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.336382][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.336382][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.336382][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.336382][ T254] [ 6548.338696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.338696][ T254] netdev_get_by_index+0x5e/0x80 [ 6548.338696][ T254] fib6_nh_init+0x3d8/0x1580 [ 6548.338696][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6548.338696][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6548.338696][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6548.338696][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6548.338696][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6548.338696][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6548.338696][ T254] addrconf_dad_begin+0x310/0x670 [ 6548.338696][ T254] addrconf_dad_work+0x10b/0xab0 [ 6548.338696][ T254] process_one_work+0x84d/0x18a0 [ 6548.338696][ T254] worker_thread+0x587/0xd30 [ 6548.338696][ T254] kthread+0x28a/0x350 [ 6548.338696][ T254] ret_from_fork+0x31/0x70 [ 6548.338696][ T254] ret_from_fork_asm+0x1a/0x30 [ 6548.338696][ T254] [ 6548.340832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.340832][ T254] netdev_get_by_index+0x5e/0x80 [ 6548.340832][ T254] fib6_nh_init+0x3d8/0x1580 [ 6548.340832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6548.340832][ T254] ip6_route_add+0x1c/0x140 [ 6548.340832][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6548.340832][ T254] inet6_addr_add+0x4f8/0xa40 [ 6548.340832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6548.340832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6548.340832][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.340832][ T254] netlink_unicast+0x449/0x710 [ 6548.340832][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.340832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.340832][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.340832][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.340832][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.340832][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6548.340832][ T254] [ 6548.343074][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.343074][ T254] netdev_get_by_index+0x5e/0x80 [ 6548.343074][ T254] fib6_nh_init+0x3d8/0x1580 [ 6548.343074][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6548.343074][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6548.343074][ T254] ipv6_add_addr+0x411/0x2000 [ 6548.343074][ T254] inet6_addr_add+0x30e/0xa40 [ 6548.343074][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6548.343074][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6548.343074][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.343074][ T254] netlink_unicast+0x449/0x710 [ 6548.343074][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.343074][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.343074][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.343074][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.343074][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.343074][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6548.343074][ T254] [ 6548.345305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.345305][ T254] netdev_get_by_index+0x5e/0x80 [ 6548.345305][ T254] fib6_nh_init+0x3d8/0x1580 [ 6548.345305][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6548.345305][ T254] ip6_route_add+0x1c/0x140 [ 6548.345305][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6548.345305][ T254] addrconf_add_dev+0xe2/0x170 [ 6548.345305][ T254] inet6_addr_add+0x12f/0xa40 [ 6548.345305][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6548.345305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6548.345305][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.345305][ T254] netlink_unicast+0x449/0x710 [ 6548.345305][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.345305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.345305][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.345305][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.345305][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.345305][ T254] [ 6548.347505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.347505][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6548.347505][ T254] ipv6_find_idev+0x102/0x170 [ 6548.347505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6548.347505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6548.347505][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.347505][ T254] netlink_unicast+0x449/0x710 [ 6548.347505][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.347505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.347505][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.347505][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.347505][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.347505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6548.347505][ T254] [ 6548.349235][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6548.349235][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6548.349235][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6548.349235][ T254] ipv6_find_idev+0x102/0x170 [ 6548.349235][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6548.349235][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6548.349235][ T254] netlink_rcv_skb+0x130/0x360 [ 6548.349235][ T254] netlink_unicast+0x449/0x710 [ 6548.349235][ T254] netlink_sendmsg+0x723/0xbe0 [ 6548.349235][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6548.349235][ T254] ___sys_sendmsg+0xee/0x170 [ 6548.349235][ T254] __sys_sendmsg+0xcd/0x170 [ 6548.349235][ T254] do_syscall_64+0xc6/0x1e0 [ 6548.349235][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6548.349235][ T254] [ 6558.375916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6558.376378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.376378][ T254] dst_init+0x84/0x4a0 [ 6558.376378][ T254] dst_alloc+0x97/0x150 [ 6558.376378][ T254] ip6_dst_alloc+0x23/0x90 [ 6558.376378][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6558.376378][ T254] ip6_pol_route+0x56f/0x840 [ 6558.376378][ T254] fib6_rule_lookup+0x334/0x630 [ 6558.376378][ T254] ip6_route_output_flags+0x259/0x480 [ 6558.376378][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6558.376378][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6558.376378][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.376378][ T254] netlink_unicast+0x449/0x710 [ 6558.376378][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.376378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.376378][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.376378][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.376378][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.376378][ T254] [ 6558.378570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.378570][ T254] netdev_get_by_index+0x5e/0x80 [ 6558.378570][ T254] fib6_nh_init+0x3d8/0x1580 [ 6558.378570][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6558.378570][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6558.378570][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6558.378570][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6558.378570][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6558.378570][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6558.378570][ T254] addrconf_dad_begin+0x310/0x670 [ 6558.378570][ T254] addrconf_dad_work+0x10b/0xab0 [ 6558.378570][ T254] process_one_work+0x84d/0x18a0 [ 6558.378570][ T254] worker_thread+0x587/0xd30 [ 6558.378570][ T254] kthread+0x28a/0x350 [ 6558.378570][ T254] ret_from_fork+0x31/0x70 [ 6558.378570][ T254] ret_from_fork_asm+0x1a/0x30 [ 6558.378570][ T254] [ 6558.380706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.380706][ T254] netdev_get_by_index+0x5e/0x80 [ 6558.380706][ T254] fib6_nh_init+0x3d8/0x1580 [ 6558.380706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6558.380706][ T254] ip6_route_add+0x1c/0x140 [ 6558.380706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6558.380706][ T254] inet6_addr_add+0x4f8/0xa40 [ 6558.380706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6558.380706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6558.380706][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.380706][ T254] netlink_unicast+0x449/0x710 [ 6558.380706][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.380706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.380706][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.380706][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.380706][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.380706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6558.380706][ T254] [ 6558.383053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.383053][ T254] netdev_get_by_index+0x5e/0x80 [ 6558.383053][ T254] fib6_nh_init+0x3d8/0x1580 [ 6558.383053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6558.383053][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6558.383053][ T254] ipv6_add_addr+0x411/0x2000 [ 6558.383053][ T254] inet6_addr_add+0x30e/0xa40 [ 6558.383053][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6558.383053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6558.383053][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.383053][ T254] netlink_unicast+0x449/0x710 [ 6558.383053][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.383053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.383053][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.383053][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.383053][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.383053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6558.383053][ T254] [ 6558.385290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.385290][ T254] netdev_get_by_index+0x5e/0x80 [ 6558.385290][ T254] fib6_nh_init+0x3d8/0x1580 [ 6558.385290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6558.385290][ T254] ip6_route_add+0x1c/0x140 [ 6558.385290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6558.385290][ T254] addrconf_add_dev+0xe2/0x170 [ 6558.385290][ T254] inet6_addr_add+0x12f/0xa40 [ 6558.385290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6558.385290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6558.385290][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.385290][ T254] netlink_unicast+0x449/0x710 [ 6558.385290][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.385290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.385290][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.385290][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.385290][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.385290][ T254] [ 6558.387485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.387485][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6558.387485][ T254] ipv6_find_idev+0x102/0x170 [ 6558.387485][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6558.387485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6558.387485][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.387485][ T254] netlink_unicast+0x449/0x710 [ 6558.387485][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.387485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.387485][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.387485][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.387485][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.387485][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6558.387485][ T254] [ 6558.389199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6558.389199][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6558.389199][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6558.389199][ T254] ipv6_find_idev+0x102/0x170 [ 6558.389199][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6558.389199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6558.389199][ T254] netlink_rcv_skb+0x130/0x360 [ 6558.389199][ T254] netlink_unicast+0x449/0x710 [ 6558.389199][ T254] netlink_sendmsg+0x723/0xbe0 [ 6558.389199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6558.389199][ T254] ___sys_sendmsg+0xee/0x170 [ 6558.389199][ T254] __sys_sendmsg+0xcd/0x170 [ 6558.389199][ T254] do_syscall_64+0xc6/0x1e0 [ 6558.389199][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6558.389199][ T254] [ 6568.631848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6568.632320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.632320][ T254] dst_init+0x84/0x4a0 [ 6568.632320][ T254] dst_alloc+0x97/0x150 [ 6568.632320][ T254] ip6_dst_alloc+0x23/0x90 [ 6568.632320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6568.632320][ T254] ip6_pol_route+0x56f/0x840 [ 6568.632320][ T254] fib6_rule_lookup+0x334/0x630 [ 6568.632320][ T254] ip6_route_output_flags+0x259/0x480 [ 6568.632320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6568.632320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6568.632320][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.632320][ T254] netlink_unicast+0x449/0x710 [ 6568.632320][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.632320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.632320][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.632320][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.632320][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.632320][ T254] [ 6568.634503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.634503][ T254] netdev_get_by_index+0x5e/0x80 [ 6568.634503][ T254] fib6_nh_init+0x3d8/0x1580 [ 6568.634503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6568.634503][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6568.634503][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6568.634503][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6568.634503][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6568.634503][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6568.634503][ T254] addrconf_dad_begin+0x310/0x670 [ 6568.634503][ T254] addrconf_dad_work+0x10b/0xab0 [ 6568.634503][ T254] process_one_work+0x84d/0x18a0 [ 6568.634503][ T254] worker_thread+0x587/0xd30 [ 6568.634503][ T254] kthread+0x28a/0x350 [ 6568.634503][ T254] ret_from_fork+0x31/0x70 [ 6568.634503][ T254] ret_from_fork_asm+0x1a/0x30 [ 6568.634503][ T254] [ 6568.636648][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.636648][ T254] netdev_get_by_index+0x5e/0x80 [ 6568.636648][ T254] fib6_nh_init+0x3d8/0x1580 [ 6568.636648][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6568.636648][ T254] ip6_route_add+0x1c/0x140 [ 6568.636648][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6568.636648][ T254] inet6_addr_add+0x4f8/0xa40 [ 6568.636648][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6568.636648][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6568.636648][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.636648][ T254] netlink_unicast+0x449/0x710 [ 6568.636648][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.636648][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.636648][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.636648][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.636648][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.636648][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6568.636648][ T254] [ 6568.638887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.638887][ T254] netdev_get_by_index+0x5e/0x80 [ 6568.638887][ T254] fib6_nh_init+0x3d8/0x1580 [ 6568.638887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6568.638887][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6568.638887][ T254] ipv6_add_addr+0x411/0x2000 [ 6568.638887][ T254] inet6_addr_add+0x30e/0xa40 [ 6568.638887][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6568.638887][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6568.638887][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.638887][ T254] netlink_unicast+0x449/0x710 [ 6568.638887][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.638887][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.638887][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.638887][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.638887][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.638887][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6568.638887][ T254] [ 6568.641135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.641135][ T254] netdev_get_by_index+0x5e/0x80 [ 6568.641135][ T254] fib6_nh_init+0x3d8/0x1580 [ 6568.641135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6568.641135][ T254] ip6_route_add+0x1c/0x140 [ 6568.641135][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6568.641135][ T254] addrconf_add_dev+0xe2/0x170 [ 6568.641135][ T254] inet6_addr_add+0x12f/0xa40 [ 6568.641135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6568.641135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6568.641135][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.641135][ T254] netlink_unicast+0x449/0x710 [ 6568.641135][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.641135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.641135][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.641135][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.641135][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.641135][ T254] [ 6568.643336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.643336][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6568.643336][ T254] ipv6_find_idev+0x102/0x170 [ 6568.643336][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6568.643336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6568.643336][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.643336][ T254] netlink_unicast+0x449/0x710 [ 6568.643336][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.643336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.643336][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.643336][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.643336][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.643336][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6568.643336][ T254] [ 6568.645057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6568.645057][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6568.645057][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6568.645057][ T254] ipv6_find_idev+0x102/0x170 [ 6568.645057][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6568.645057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6568.645057][ T254] netlink_rcv_skb+0x130/0x360 [ 6568.645057][ T254] netlink_unicast+0x449/0x710 [ 6568.645057][ T254] netlink_sendmsg+0x723/0xbe0 [ 6568.645057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6568.645057][ T254] ___sys_sendmsg+0xee/0x170 [ 6568.645057][ T254] __sys_sendmsg+0xcd/0x170 [ 6568.645057][ T254] do_syscall_64+0xc6/0x1e0 [ 6568.645057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6568.645057][ T254] [ 6578.847781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6578.848241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.848241][ T254] dst_init+0x84/0x4a0 [ 6578.848241][ T254] dst_alloc+0x97/0x150 [ 6578.848241][ T254] ip6_dst_alloc+0x23/0x90 [ 6578.848241][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6578.848241][ T254] ip6_pol_route+0x56f/0x840 [ 6578.848241][ T254] fib6_rule_lookup+0x334/0x630 [ 6578.848241][ T254] ip6_route_output_flags+0x259/0x480 [ 6578.848241][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6578.848241][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6578.848241][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.848241][ T254] netlink_unicast+0x449/0x710 [ 6578.848241][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.848241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.848241][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.848241][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.848241][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.848241][ T254] [ 6578.850447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.850447][ T254] netdev_get_by_index+0x5e/0x80 [ 6578.850447][ T254] fib6_nh_init+0x3d8/0x1580 [ 6578.850447][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6578.850447][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6578.850447][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6578.850447][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6578.850447][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6578.850447][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6578.850447][ T254] addrconf_dad_begin+0x310/0x670 [ 6578.850447][ T254] addrconf_dad_work+0x10b/0xab0 [ 6578.850447][ T254] process_one_work+0x84d/0x18a0 [ 6578.850447][ T254] worker_thread+0x587/0xd30 [ 6578.850447][ T254] kthread+0x28a/0x350 [ 6578.850447][ T254] ret_from_fork+0x31/0x70 [ 6578.850447][ T254] ret_from_fork_asm+0x1a/0x30 [ 6578.850447][ T254] [ 6578.852590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.852590][ T254] netdev_get_by_index+0x5e/0x80 [ 6578.852590][ T254] fib6_nh_init+0x3d8/0x1580 [ 6578.852590][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6578.852590][ T254] ip6_route_add+0x1c/0x140 [ 6578.852590][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6578.852590][ T254] inet6_addr_add+0x4f8/0xa40 [ 6578.852590][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6578.852590][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6578.852590][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.852590][ T254] netlink_unicast+0x449/0x710 [ 6578.852590][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.852590][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.852590][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.852590][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.852590][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.852590][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6578.852590][ T254] [ 6578.854826][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.854826][ T254] netdev_get_by_index+0x5e/0x80 [ 6578.854826][ T254] fib6_nh_init+0x3d8/0x1580 [ 6578.854826][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6578.854826][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6578.854826][ T254] ipv6_add_addr+0x411/0x2000 [ 6578.854826][ T254] inet6_addr_add+0x30e/0xa40 [ 6578.854826][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6578.854826][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6578.854826][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.854826][ T254] netlink_unicast+0x449/0x710 [ 6578.854826][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.854826][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.854826][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.854826][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.854826][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.854826][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6578.854826][ T254] [ 6578.857076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.857076][ T254] netdev_get_by_index+0x5e/0x80 [ 6578.857076][ T254] fib6_nh_init+0x3d8/0x1580 [ 6578.857076][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6578.857076][ T254] ip6_route_add+0x1c/0x140 [ 6578.857076][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6578.857076][ T254] addrconf_add_dev+0xe2/0x170 [ 6578.857076][ T254] inet6_addr_add+0x12f/0xa40 [ 6578.857076][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6578.857076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6578.857076][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.857076][ T254] netlink_unicast+0x449/0x710 [ 6578.857076][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.857076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.857076][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.857076][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.857076][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.857076][ T254] [ 6578.859269][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.859269][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6578.859269][ T254] ipv6_find_idev+0x102/0x170 [ 6578.859269][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6578.859269][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6578.859269][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.859269][ T254] netlink_unicast+0x449/0x710 [ 6578.859269][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.859269][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.859269][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.859269][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.859269][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.859269][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6578.859269][ T254] [ 6578.861010][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6578.861010][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6578.861010][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6578.861010][ T254] ipv6_find_idev+0x102/0x170 [ 6578.861010][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6578.861010][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6578.861010][ T254] netlink_rcv_skb+0x130/0x360 [ 6578.861010][ T254] netlink_unicast+0x449/0x710 [ 6578.861010][ T254] netlink_sendmsg+0x723/0xbe0 [ 6578.861010][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6578.861010][ T254] ___sys_sendmsg+0xee/0x170 [ 6578.861010][ T254] __sys_sendmsg+0xcd/0x170 [ 6578.861010][ T254] do_syscall_64+0xc6/0x1e0 [ 6578.861010][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6578.861010][ T254] [ 6589.111846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6589.112330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.112330][ T254] dst_init+0x84/0x4a0 [ 6589.112330][ T254] dst_alloc+0x97/0x150 [ 6589.112330][ T254] ip6_dst_alloc+0x23/0x90 [ 6589.112330][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6589.112330][ T254] ip6_pol_route+0x56f/0x840 [ 6589.112330][ T254] fib6_rule_lookup+0x334/0x630 [ 6589.112330][ T254] ip6_route_output_flags+0x259/0x480 [ 6589.112330][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6589.112330][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6589.112330][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.112330][ T254] netlink_unicast+0x449/0x710 [ 6589.112330][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.112330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.112330][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.112330][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.112330][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.112330][ T254] [ 6589.114544][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.114544][ T254] netdev_get_by_index+0x5e/0x80 [ 6589.114544][ T254] fib6_nh_init+0x3d8/0x1580 [ 6589.114544][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6589.114544][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6589.114544][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6589.114544][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6589.114544][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6589.114544][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6589.114544][ T254] addrconf_dad_begin+0x310/0x670 [ 6589.114544][ T254] addrconf_dad_work+0x10b/0xab0 [ 6589.114544][ T254] process_one_work+0x84d/0x18a0 [ 6589.114544][ T254] worker_thread+0x587/0xd30 [ 6589.114544][ T254] kthread+0x28a/0x350 [ 6589.114544][ T254] ret_from_fork+0x31/0x70 [ 6589.114544][ T254] ret_from_fork_asm+0x1a/0x30 [ 6589.114544][ T254] [ 6589.116728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.116728][ T254] netdev_get_by_index+0x5e/0x80 [ 6589.116728][ T254] fib6_nh_init+0x3d8/0x1580 [ 6589.116728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6589.116728][ T254] ip6_route_add+0x1c/0x140 [ 6589.116728][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6589.116728][ T254] inet6_addr_add+0x4f8/0xa40 [ 6589.116728][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6589.116728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6589.116728][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.116728][ T254] netlink_unicast+0x449/0x710 [ 6589.116728][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.116728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.116728][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.116728][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.116728][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.116728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6589.116728][ T254] [ 6589.118994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.118994][ T254] netdev_get_by_index+0x5e/0x80 [ 6589.118994][ T254] fib6_nh_init+0x3d8/0x1580 [ 6589.118994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6589.118994][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6589.118994][ T254] ipv6_add_addr+0x411/0x2000 [ 6589.118994][ T254] inet6_addr_add+0x30e/0xa40 [ 6589.118994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6589.118994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6589.118994][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.118994][ T254] netlink_unicast+0x449/0x710 [ 6589.118994][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.118994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.118994][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.118994][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.118994][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.118994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6589.118994][ T254] [ 6589.121258][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.121258][ T254] netdev_get_by_index+0x5e/0x80 [ 6589.121258][ T254] fib6_nh_init+0x3d8/0x1580 [ 6589.121258][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6589.121258][ T254] ip6_route_add+0x1c/0x140 [ 6589.121258][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6589.121258][ T254] addrconf_add_dev+0xe2/0x170 [ 6589.121258][ T254] inet6_addr_add+0x12f/0xa40 [ 6589.121258][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6589.121258][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6589.121258][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.121258][ T254] netlink_unicast+0x449/0x710 [ 6589.121258][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.121258][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.121258][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.121258][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.121258][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.121258][ T254] [ 6589.123478][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.123478][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6589.123478][ T254] ipv6_find_idev+0x102/0x170 [ 6589.123478][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6589.123478][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6589.123478][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.123478][ T254] netlink_unicast+0x449/0x710 [ 6589.123478][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.123478][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.123478][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.123478][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.123478][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.123478][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6589.123478][ T254] [ 6589.125213][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6589.125213][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6589.125213][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6589.125213][ T254] ipv6_find_idev+0x102/0x170 [ 6589.125213][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6589.125213][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6589.125213][ T254] netlink_rcv_skb+0x130/0x360 [ 6589.125213][ T254] netlink_unicast+0x449/0x710 [ 6589.125213][ T254] netlink_sendmsg+0x723/0xbe0 [ 6589.125213][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6589.125213][ T254] ___sys_sendmsg+0xee/0x170 [ 6589.125213][ T254] __sys_sendmsg+0xcd/0x170 [ 6589.125213][ T254] do_syscall_64+0xc6/0x1e0 [ 6589.125213][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6589.125213][ T254] [ 6599.375845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6599.376329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.376329][ T254] dst_init+0x84/0x4a0 [ 6599.376329][ T254] dst_alloc+0x97/0x150 [ 6599.376329][ T254] ip6_dst_alloc+0x23/0x90 [ 6599.376329][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6599.376329][ T254] ip6_pol_route+0x56f/0x840 [ 6599.376329][ T254] fib6_rule_lookup+0x334/0x630 [ 6599.376329][ T254] ip6_route_output_flags+0x259/0x480 [ 6599.376329][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6599.376329][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6599.376329][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.376329][ T254] netlink_unicast+0x449/0x710 [ 6599.376329][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.376329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.376329][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.376329][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.376329][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.376329][ T254] [ 6599.378566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.378566][ T254] netdev_get_by_index+0x5e/0x80 [ 6599.378566][ T254] fib6_nh_init+0x3d8/0x1580 [ 6599.378566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6599.378566][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6599.378566][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6599.378566][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6599.378566][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6599.378566][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6599.378566][ T254] addrconf_dad_begin+0x310/0x670 [ 6599.378566][ T254] addrconf_dad_work+0x10b/0xab0 [ 6599.378566][ T254] process_one_work+0x84d/0x18a0 [ 6599.378566][ T254] worker_thread+0x587/0xd30 [ 6599.378566][ T254] kthread+0x28a/0x350 [ 6599.378566][ T254] ret_from_fork+0x31/0x70 [ 6599.378566][ T254] ret_from_fork_asm+0x1a/0x30 [ 6599.378566][ T254] [ 6599.380728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.380728][ T254] netdev_get_by_index+0x5e/0x80 [ 6599.380728][ T254] fib6_nh_init+0x3d8/0x1580 [ 6599.380728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6599.380728][ T254] ip6_route_add+0x1c/0x140 [ 6599.380728][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6599.380728][ T254] inet6_addr_add+0x4f8/0xa40 [ 6599.380728][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6599.380728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6599.380728][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.380728][ T254] netlink_unicast+0x449/0x710 [ 6599.380728][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.380728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.380728][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.380728][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.380728][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.380728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6599.380728][ T254] [ 6599.383005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.383005][ T254] netdev_get_by_index+0x5e/0x80 [ 6599.383005][ T254] fib6_nh_init+0x3d8/0x1580 [ 6599.383005][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6599.383005][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6599.383005][ T254] ipv6_add_addr+0x411/0x2000 [ 6599.383005][ T254] inet6_addr_add+0x30e/0xa40 [ 6599.383005][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6599.383005][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6599.383005][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.383005][ T254] netlink_unicast+0x449/0x710 [ 6599.383005][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.383005][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.383005][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.383005][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.383005][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.383005][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6599.383005][ T254] [ 6599.385266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.385266][ T254] netdev_get_by_index+0x5e/0x80 [ 6599.385266][ T254] fib6_nh_init+0x3d8/0x1580 [ 6599.385266][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6599.385266][ T254] ip6_route_add+0x1c/0x140 [ 6599.385266][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6599.385266][ T254] addrconf_add_dev+0xe2/0x170 [ 6599.385266][ T254] inet6_addr_add+0x12f/0xa40 [ 6599.385266][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6599.385266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6599.385266][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.385266][ T254] netlink_unicast+0x449/0x710 [ 6599.385266][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.385266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.385266][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.385266][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.385266][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.385266][ T254] [ 6599.387483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.387483][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6599.387483][ T254] ipv6_find_idev+0x102/0x170 [ 6599.387483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6599.387483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6599.387483][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.387483][ T254] netlink_unicast+0x449/0x710 [ 6599.387483][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.387483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.387483][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.387483][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.387483][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.387483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6599.387483][ T254] [ 6599.389222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6599.389222][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6599.389222][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6599.389222][ T254] ipv6_find_idev+0x102/0x170 [ 6599.389222][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6599.389222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6599.389222][ T254] netlink_rcv_skb+0x130/0x360 [ 6599.389222][ T254] netlink_unicast+0x449/0x710 [ 6599.389222][ T254] netlink_sendmsg+0x723/0xbe0 [ 6599.389222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6599.389222][ T254] ___sys_sendmsg+0xee/0x170 [ 6599.389222][ T254] __sys_sendmsg+0xcd/0x170 [ 6599.389222][ T254] do_syscall_64+0xc6/0x1e0 [ 6599.389222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6599.389222][ T254] [ 6609.639871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6609.640372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.640372][ T254] dst_init+0x84/0x4a0 [ 6609.640372][ T254] dst_alloc+0x97/0x150 [ 6609.640372][ T254] ip6_dst_alloc+0x23/0x90 [ 6609.640372][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6609.640372][ T254] ip6_pol_route+0x56f/0x840 [ 6609.640372][ T254] fib6_rule_lookup+0x334/0x630 [ 6609.640372][ T254] ip6_route_output_flags+0x259/0x480 [ 6609.640372][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6609.640372][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6609.640372][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.640372][ T254] netlink_unicast+0x449/0x710 [ 6609.640372][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.640372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.640372][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.640372][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.640372][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.640372][ T254] [ 6609.642580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.642580][ T254] netdev_get_by_index+0x5e/0x80 [ 6609.642580][ T254] fib6_nh_init+0x3d8/0x1580 [ 6609.642580][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6609.642580][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6609.642580][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6609.642580][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6609.642580][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6609.642580][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6609.642580][ T254] addrconf_dad_begin+0x310/0x670 [ 6609.642580][ T254] addrconf_dad_work+0x10b/0xab0 [ 6609.642580][ T254] process_one_work+0x84d/0x18a0 [ 6609.642580][ T254] worker_thread+0x587/0xd30 [ 6609.642580][ T254] kthread+0x28a/0x350 [ 6609.642580][ T254] ret_from_fork+0x31/0x70 [ 6609.642580][ T254] ret_from_fork_asm+0x1a/0x30 [ 6609.642580][ T254] [ 6609.644752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.644752][ T254] netdev_get_by_index+0x5e/0x80 [ 6609.644752][ T254] fib6_nh_init+0x3d8/0x1580 [ 6609.644752][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6609.644752][ T254] ip6_route_add+0x1c/0x140 [ 6609.644752][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6609.644752][ T254] inet6_addr_add+0x4f8/0xa40 [ 6609.644752][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6609.644752][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6609.644752][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.644752][ T254] netlink_unicast+0x449/0x710 [ 6609.644752][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.644752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.644752][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.644752][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.644752][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.644752][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6609.644752][ T254] [ 6609.647028][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.647028][ T254] netdev_get_by_index+0x5e/0x80 [ 6609.647028][ T254] fib6_nh_init+0x3d8/0x1580 [ 6609.647028][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6609.647028][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6609.647028][ T254] ipv6_add_addr+0x411/0x2000 [ 6609.647028][ T254] inet6_addr_add+0x30e/0xa40 [ 6609.647028][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6609.647028][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6609.647028][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.647028][ T254] netlink_unicast+0x449/0x710 [ 6609.647028][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.647028][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.647028][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.647028][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.647028][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.647028][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6609.647028][ T254] [ 6609.649286][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.649286][ T254] netdev_get_by_index+0x5e/0x80 [ 6609.649286][ T254] fib6_nh_init+0x3d8/0x1580 [ 6609.649286][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6609.649286][ T254] ip6_route_add+0x1c/0x140 [ 6609.649286][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6609.649286][ T254] addrconf_add_dev+0xe2/0x170 [ 6609.649286][ T254] inet6_addr_add+0x12f/0xa40 [ 6609.649286][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6609.649286][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6609.649286][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.649286][ T254] netlink_unicast+0x449/0x710 [ 6609.649286][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.649286][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.649286][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.649286][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.649286][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.649286][ T254] [ 6609.651507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.651507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6609.651507][ T254] ipv6_find_idev+0x102/0x170 [ 6609.651507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6609.651507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6609.651507][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.651507][ T254] netlink_unicast+0x449/0x710 [ 6609.651507][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.651507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.651507][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.651507][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.651507][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.651507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6609.651507][ T254] [ 6609.653260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6609.653260][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6609.653260][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6609.653260][ T254] ipv6_find_idev+0x102/0x170 [ 6609.653260][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6609.653260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6609.653260][ T254] netlink_rcv_skb+0x130/0x360 [ 6609.653260][ T254] netlink_unicast+0x449/0x710 [ 6609.653260][ T254] netlink_sendmsg+0x723/0xbe0 [ 6609.653260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6609.653260][ T254] ___sys_sendmsg+0xee/0x170 [ 6609.653260][ T254] __sys_sendmsg+0xcd/0x170 [ 6609.653260][ T254] do_syscall_64+0xc6/0x1e0 [ 6609.653260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6609.653260][ T254] [ 6619.679845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6619.680322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.680322][ T254] dst_init+0x84/0x4a0 [ 6619.680322][ T254] dst_alloc+0x97/0x150 [ 6619.680322][ T254] ip6_dst_alloc+0x23/0x90 [ 6619.680322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6619.680322][ T254] ip6_pol_route+0x56f/0x840 [ 6619.680322][ T254] fib6_rule_lookup+0x334/0x630 [ 6619.680322][ T254] ip6_route_output_flags+0x259/0x480 [ 6619.680322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6619.680322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6619.680322][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.680322][ T254] netlink_unicast+0x449/0x710 [ 6619.680322][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.680322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.680322][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.680322][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.680322][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.680322][ T254] [ 6619.682548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.682548][ T254] netdev_get_by_index+0x5e/0x80 [ 6619.682548][ T254] fib6_nh_init+0x3d8/0x1580 [ 6619.682548][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6619.682548][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6619.682548][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6619.682548][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6619.682548][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6619.682548][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6619.682548][ T254] addrconf_dad_begin+0x310/0x670 [ 6619.682548][ T254] addrconf_dad_work+0x10b/0xab0 [ 6619.682548][ T254] process_one_work+0x84d/0x18a0 [ 6619.682548][ T254] worker_thread+0x587/0xd30 [ 6619.682548][ T254] kthread+0x28a/0x350 [ 6619.682548][ T254] ret_from_fork+0x31/0x70 [ 6619.682548][ T254] ret_from_fork_asm+0x1a/0x30 [ 6619.682548][ T254] [ 6619.684718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.684718][ T254] netdev_get_by_index+0x5e/0x80 [ 6619.684718][ T254] fib6_nh_init+0x3d8/0x1580 [ 6619.684718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6619.684718][ T254] ip6_route_add+0x1c/0x140 [ 6619.684718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6619.684718][ T254] inet6_addr_add+0x4f8/0xa40 [ 6619.684718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6619.684718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6619.684718][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.684718][ T254] netlink_unicast+0x449/0x710 [ 6619.684718][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.684718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.684718][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.684718][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.684718][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.684718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6619.684718][ T254] [ 6619.686989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.686989][ T254] netdev_get_by_index+0x5e/0x80 [ 6619.686989][ T254] fib6_nh_init+0x3d8/0x1580 [ 6619.686989][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6619.686989][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6619.686989][ T254] ipv6_add_addr+0x411/0x2000 [ 6619.686989][ T254] inet6_addr_add+0x30e/0xa40 [ 6619.686989][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6619.686989][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6619.686989][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.686989][ T254] netlink_unicast+0x449/0x710 [ 6619.686989][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.686989][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.686989][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.686989][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.686989][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.686989][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6619.686989][ T254] [ 6619.689242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.689242][ T254] netdev_get_by_index+0x5e/0x80 [ 6619.689242][ T254] fib6_nh_init+0x3d8/0x1580 [ 6619.689242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6619.689242][ T254] ip6_route_add+0x1c/0x140 [ 6619.689242][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6619.689242][ T254] addrconf_add_dev+0xe2/0x170 [ 6619.689242][ T254] inet6_addr_add+0x12f/0xa40 [ 6619.689242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6619.689242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6619.689242][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.689242][ T254] netlink_unicast+0x449/0x710 [ 6619.689242][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.689242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.689242][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.689242][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.689242][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.689242][ T254] [ 6619.691461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.691461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6619.691461][ T254] ipv6_find_idev+0x102/0x170 [ 6619.691461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6619.691461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6619.691461][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.691461][ T254] netlink_unicast+0x449/0x710 [ 6619.691461][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.691461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.691461][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.691461][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.691461][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.691461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6619.691461][ T254] [ 6619.693215][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6619.693215][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6619.693215][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6619.693215][ T254] ipv6_find_idev+0x102/0x170 [ 6619.693215][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6619.693215][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6619.693215][ T254] netlink_rcv_skb+0x130/0x360 [ 6619.693215][ T254] netlink_unicast+0x449/0x710 [ 6619.693215][ T254] netlink_sendmsg+0x723/0xbe0 [ 6619.693215][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6619.693215][ T254] ___sys_sendmsg+0xee/0x170 [ 6619.693215][ T254] __sys_sendmsg+0xcd/0x170 [ 6619.693215][ T254] do_syscall_64+0xc6/0x1e0 [ 6619.693215][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6619.693215][ T254] [ 6629.695847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6629.696340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.696340][ T254] dst_init+0x84/0x4a0 [ 6629.696340][ T254] dst_alloc+0x97/0x150 [ 6629.696340][ T254] ip6_dst_alloc+0x23/0x90 [ 6629.696340][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6629.696340][ T254] ip6_pol_route+0x56f/0x840 [ 6629.696340][ T254] fib6_rule_lookup+0x334/0x630 [ 6629.696340][ T254] ip6_route_output_flags+0x259/0x480 [ 6629.696340][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6629.696340][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6629.696340][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.696340][ T254] netlink_unicast+0x449/0x710 [ 6629.696340][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.696340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.696340][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.696340][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.696340][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.696340][ T254] [ 6629.698565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.698565][ T254] netdev_get_by_index+0x5e/0x80 [ 6629.698565][ T254] fib6_nh_init+0x3d8/0x1580 [ 6629.698565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6629.698565][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6629.698565][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6629.698565][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6629.698565][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6629.698565][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6629.698565][ T254] addrconf_dad_begin+0x310/0x670 [ 6629.698565][ T254] addrconf_dad_work+0x10b/0xab0 [ 6629.698565][ T254] process_one_work+0x84d/0x18a0 [ 6629.698565][ T254] worker_thread+0x587/0xd30 [ 6629.698565][ T254] kthread+0x28a/0x350 [ 6629.698565][ T254] ret_from_fork+0x31/0x70 [ 6629.698565][ T254] ret_from_fork_asm+0x1a/0x30 [ 6629.698565][ T254] [ 6629.700727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.700727][ T254] netdev_get_by_index+0x5e/0x80 [ 6629.700727][ T254] fib6_nh_init+0x3d8/0x1580 [ 6629.700727][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6629.700727][ T254] ip6_route_add+0x1c/0x140 [ 6629.700727][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6629.700727][ T254] inet6_addr_add+0x4f8/0xa40 [ 6629.700727][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6629.700727][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6629.700727][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.700727][ T254] netlink_unicast+0x449/0x710 [ 6629.700727][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.700727][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.700727][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.700727][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.700727][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.700727][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6629.700727][ T254] [ 6629.702992][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.702992][ T254] netdev_get_by_index+0x5e/0x80 [ 6629.702992][ T254] fib6_nh_init+0x3d8/0x1580 [ 6629.702992][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6629.702992][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6629.702992][ T254] ipv6_add_addr+0x411/0x2000 [ 6629.702992][ T254] inet6_addr_add+0x30e/0xa40 [ 6629.702992][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6629.702992][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6629.702992][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.702992][ T254] netlink_unicast+0x449/0x710 [ 6629.702992][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.702992][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.702992][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.702992][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.702992][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.702992][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6629.702992][ T254] [ 6629.705251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.705251][ T254] netdev_get_by_index+0x5e/0x80 [ 6629.705251][ T254] fib6_nh_init+0x3d8/0x1580 [ 6629.705251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6629.705251][ T254] ip6_route_add+0x1c/0x140 [ 6629.705251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6629.705251][ T254] addrconf_add_dev+0xe2/0x170 [ 6629.705251][ T254] inet6_addr_add+0x12f/0xa40 [ 6629.705251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6629.705251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6629.705251][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.705251][ T254] netlink_unicast+0x449/0x710 [ 6629.705251][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.705251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.705251][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.705251][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.705251][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.705251][ T254] [ 6629.707496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.707496][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6629.707496][ T254] ipv6_find_idev+0x102/0x170 [ 6629.707496][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6629.707496][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6629.707496][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.707496][ T254] netlink_unicast+0x449/0x710 [ 6629.707496][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.707496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.707496][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.707496][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.707496][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.707496][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6629.707496][ T254] [ 6629.709239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6629.709239][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6629.709239][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6629.709239][ T254] ipv6_find_idev+0x102/0x170 [ 6629.709239][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6629.709239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6629.709239][ T254] netlink_rcv_skb+0x130/0x360 [ 6629.709239][ T254] netlink_unicast+0x449/0x710 [ 6629.709239][ T254] netlink_sendmsg+0x723/0xbe0 [ 6629.709239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6629.709239][ T254] ___sys_sendmsg+0xee/0x170 [ 6629.709239][ T254] __sys_sendmsg+0xcd/0x170 [ 6629.709239][ T254] do_syscall_64+0xc6/0x1e0 [ 6629.709239][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6629.709239][ T254] [ 6639.839841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6639.840352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.840352][ T254] dst_init+0x84/0x4a0 [ 6639.840352][ T254] dst_alloc+0x97/0x150 [ 6639.840352][ T254] ip6_dst_alloc+0x23/0x90 [ 6639.840352][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6639.840352][ T254] ip6_pol_route+0x56f/0x840 [ 6639.840352][ T254] fib6_rule_lookup+0x334/0x630 [ 6639.840352][ T254] ip6_route_output_flags+0x259/0x480 [ 6639.840352][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6639.840352][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6639.840352][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.840352][ T254] netlink_unicast+0x449/0x710 [ 6639.840352][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.840352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.840352][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.840352][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.840352][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.840352][ T254] [ 6639.842575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.842575][ T254] netdev_get_by_index+0x5e/0x80 [ 6639.842575][ T254] fib6_nh_init+0x3d8/0x1580 [ 6639.842575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6639.842575][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6639.842575][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6639.842575][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6639.842575][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6639.842575][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6639.842575][ T254] addrconf_dad_begin+0x310/0x670 [ 6639.842575][ T254] addrconf_dad_work+0x10b/0xab0 [ 6639.842575][ T254] process_one_work+0x84d/0x18a0 [ 6639.842575][ T254] worker_thread+0x587/0xd30 [ 6639.842575][ T254] kthread+0x28a/0x350 [ 6639.842575][ T254] ret_from_fork+0x31/0x70 [ 6639.842575][ T254] ret_from_fork_asm+0x1a/0x30 [ 6639.842575][ T254] [ 6639.844742][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.844742][ T254] netdev_get_by_index+0x5e/0x80 [ 6639.844742][ T254] fib6_nh_init+0x3d8/0x1580 [ 6639.844742][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6639.844742][ T254] ip6_route_add+0x1c/0x140 [ 6639.844742][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6639.844742][ T254] inet6_addr_add+0x4f8/0xa40 [ 6639.844742][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6639.844742][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6639.844742][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.844742][ T254] netlink_unicast+0x449/0x710 [ 6639.844742][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.844742][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.844742][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.844742][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.844742][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.844742][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6639.844742][ T254] [ 6639.847009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.847009][ T254] netdev_get_by_index+0x5e/0x80 [ 6639.847009][ T254] fib6_nh_init+0x3d8/0x1580 [ 6639.847009][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6639.847009][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6639.847009][ T254] ipv6_add_addr+0x411/0x2000 [ 6639.847009][ T254] inet6_addr_add+0x30e/0xa40 [ 6639.847009][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6639.847009][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6639.847009][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.847009][ T254] netlink_unicast+0x449/0x710 [ 6639.847009][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.847009][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.847009][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.847009][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.847009][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.847009][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6639.847009][ T254] [ 6639.849267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.849267][ T254] netdev_get_by_index+0x5e/0x80 [ 6639.849267][ T254] fib6_nh_init+0x3d8/0x1580 [ 6639.849267][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6639.849267][ T254] ip6_route_add+0x1c/0x140 [ 6639.849267][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6639.849267][ T254] addrconf_add_dev+0xe2/0x170 [ 6639.849267][ T254] inet6_addr_add+0x12f/0xa40 [ 6639.849267][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6639.849267][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6639.849267][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.849267][ T254] netlink_unicast+0x449/0x710 [ 6639.849267][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.849267][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.849267][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.849267][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.849267][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.849267][ T254] [ 6639.851480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.851480][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6639.851480][ T254] ipv6_find_idev+0x102/0x170 [ 6639.851480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6639.851480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6639.851480][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.851480][ T254] netlink_unicast+0x449/0x710 [ 6639.851480][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.851480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.851480][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.851480][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.851480][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.851480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6639.851480][ T254] [ 6639.853752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6639.853752][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6639.853752][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6639.853752][ T254] ipv6_find_idev+0x102/0x170 [ 6639.853752][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6639.853752][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6639.853752][ T254] netlink_rcv_skb+0x130/0x360 [ 6639.853752][ T254] netlink_unicast+0x449/0x710 [ 6639.853752][ T254] netlink_sendmsg+0x723/0xbe0 [ 6639.853752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6639.853752][ T254] ___sys_sendmsg+0xee/0x170 [ 6639.853752][ T254] __sys_sendmsg+0xcd/0x170 [ 6639.853752][ T254] do_syscall_64+0xc6/0x1e0 [ 6639.853752][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6639.853752][ T254] [ 6650.103874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6650.104382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.104382][ T254] dst_init+0x84/0x4a0 [ 6650.104382][ T254] dst_alloc+0x97/0x150 [ 6650.104382][ T254] ip6_dst_alloc+0x23/0x90 [ 6650.104382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6650.104382][ T254] ip6_pol_route+0x56f/0x840 [ 6650.104382][ T254] fib6_rule_lookup+0x334/0x630 [ 6650.104382][ T254] ip6_route_output_flags+0x259/0x480 [ 6650.104382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6650.104382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6650.104382][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.104382][ T254] netlink_unicast+0x449/0x710 [ 6650.104382][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.104382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.104382][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.104382][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.104382][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.104382][ T254] [ 6650.106607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.106607][ T254] netdev_get_by_index+0x5e/0x80 [ 6650.106607][ T254] fib6_nh_init+0x3d8/0x1580 [ 6650.106607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6650.106607][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6650.106607][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6650.106607][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6650.106607][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6650.106607][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6650.106607][ T254] addrconf_dad_begin+0x310/0x670 [ 6650.106607][ T254] addrconf_dad_work+0x10b/0xab0 [ 6650.106607][ T254] process_one_work+0x84d/0x18a0 [ 6650.106607][ T254] worker_thread+0x587/0xd30 [ 6650.106607][ T254] kthread+0x28a/0x350 [ 6650.106607][ T254] ret_from_fork+0x31/0x70 [ 6650.106607][ T254] ret_from_fork_asm+0x1a/0x30 [ 6650.106607][ T254] [ 6650.108767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.108767][ T254] netdev_get_by_index+0x5e/0x80 [ 6650.108767][ T254] fib6_nh_init+0x3d8/0x1580 [ 6650.108767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6650.108767][ T254] ip6_route_add+0x1c/0x140 [ 6650.108767][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6650.108767][ T254] inet6_addr_add+0x4f8/0xa40 [ 6650.108767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6650.108767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6650.108767][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.108767][ T254] netlink_unicast+0x449/0x710 [ 6650.108767][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.108767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.108767][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.108767][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.108767][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.108767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6650.108767][ T254] [ 6650.111025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.111025][ T254] netdev_get_by_index+0x5e/0x80 [ 6650.111025][ T254] fib6_nh_init+0x3d8/0x1580 [ 6650.111025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6650.111025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6650.111025][ T254] ipv6_add_addr+0x411/0x2000 [ 6650.111025][ T254] inet6_addr_add+0x30e/0xa40 [ 6650.111025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6650.111025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6650.111025][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.111025][ T254] netlink_unicast+0x449/0x710 [ 6650.111025][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.111025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.111025][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.111025][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.111025][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.111025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6650.111025][ T254] [ 6650.113278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.113278][ T254] netdev_get_by_index+0x5e/0x80 [ 6650.113278][ T254] fib6_nh_init+0x3d8/0x1580 [ 6650.113278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6650.113278][ T254] ip6_route_add+0x1c/0x140 [ 6650.113278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6650.113278][ T254] addrconf_add_dev+0xe2/0x170 [ 6650.113278][ T254] inet6_addr_add+0x12f/0xa40 [ 6650.113278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6650.113278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6650.113278][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.113278][ T254] netlink_unicast+0x449/0x710 [ 6650.113278][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.113278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.113278][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.113278][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.113278][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.113278][ T254] [ 6650.115494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.115494][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6650.115494][ T254] ipv6_find_idev+0x102/0x170 [ 6650.115494][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6650.115494][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6650.115494][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.115494][ T254] netlink_unicast+0x449/0x710 [ 6650.115494][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.115494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.115494][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.115494][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.115494][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.115494][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6650.115494][ T254] [ 6650.117629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6650.117629][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6650.117629][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6650.117629][ T254] ipv6_find_idev+0x102/0x170 [ 6650.117629][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6650.117629][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6650.117629][ T254] netlink_rcv_skb+0x130/0x360 [ 6650.117629][ T254] netlink_unicast+0x449/0x710 [ 6650.117629][ T254] netlink_sendmsg+0x723/0xbe0 [ 6650.117629][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6650.117629][ T254] ___sys_sendmsg+0xee/0x170 [ 6650.117629][ T254] __sys_sendmsg+0xcd/0x170 [ 6650.117629][ T254] do_syscall_64+0xc6/0x1e0 [ 6650.117629][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6650.117629][ T254] [ 6660.367843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6660.368321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.368321][ T254] dst_init+0x84/0x4a0 [ 6660.368321][ T254] dst_alloc+0x97/0x150 [ 6660.368321][ T254] ip6_dst_alloc+0x23/0x90 [ 6660.368321][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6660.368321][ T254] ip6_pol_route+0x56f/0x840 [ 6660.368321][ T254] fib6_rule_lookup+0x334/0x630 [ 6660.368321][ T254] ip6_route_output_flags+0x259/0x480 [ 6660.368321][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6660.368321][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6660.368321][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.368321][ T254] netlink_unicast+0x449/0x710 [ 6660.368321][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.368321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.368321][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.368321][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.368321][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.368321][ T254] [ 6660.370544][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.370544][ T254] netdev_get_by_index+0x5e/0x80 [ 6660.370544][ T254] fib6_nh_init+0x3d8/0x1580 [ 6660.370544][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6660.370544][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6660.370544][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6660.370544][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6660.370544][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6660.370544][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6660.370544][ T254] addrconf_dad_begin+0x310/0x670 [ 6660.370544][ T254] addrconf_dad_work+0x10b/0xab0 [ 6660.370544][ T254] process_one_work+0x84d/0x18a0 [ 6660.370544][ T254] worker_thread+0x587/0xd30 [ 6660.370544][ T254] kthread+0x28a/0x350 [ 6660.370544][ T254] ret_from_fork+0x31/0x70 [ 6660.370544][ T254] ret_from_fork_asm+0x1a/0x30 [ 6660.370544][ T254] [ 6660.372714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.372714][ T254] netdev_get_by_index+0x5e/0x80 [ 6660.372714][ T254] fib6_nh_init+0x3d8/0x1580 [ 6660.372714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6660.372714][ T254] ip6_route_add+0x1c/0x140 [ 6660.372714][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6660.372714][ T254] inet6_addr_add+0x4f8/0xa40 [ 6660.372714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6660.372714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6660.372714][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.372714][ T254] netlink_unicast+0x449/0x710 [ 6660.372714][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.372714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.372714][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.372714][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.372714][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.372714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6660.372714][ T254] [ 6660.374983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.374983][ T254] netdev_get_by_index+0x5e/0x80 [ 6660.374983][ T254] fib6_nh_init+0x3d8/0x1580 [ 6660.374983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6660.374983][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6660.374983][ T254] ipv6_add_addr+0x411/0x2000 [ 6660.374983][ T254] inet6_addr_add+0x30e/0xa40 [ 6660.374983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6660.374983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6660.374983][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.374983][ T254] netlink_unicast+0x449/0x710 [ 6660.374983][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.374983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.374983][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.374983][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.374983][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.374983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6660.374983][ T254] [ 6660.377256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.377256][ T254] netdev_get_by_index+0x5e/0x80 [ 6660.377256][ T254] fib6_nh_init+0x3d8/0x1580 [ 6660.377256][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6660.377256][ T254] ip6_route_add+0x1c/0x140 [ 6660.377256][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6660.377256][ T254] addrconf_add_dev+0xe2/0x170 [ 6660.377256][ T254] inet6_addr_add+0x12f/0xa40 [ 6660.377256][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6660.377256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6660.377256][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.377256][ T254] netlink_unicast+0x449/0x710 [ 6660.377256][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.377256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.377256][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.377256][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.377256][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.377256][ T254] [ 6660.379474][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.379474][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6660.379474][ T254] ipv6_find_idev+0x102/0x170 [ 6660.379474][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6660.379474][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6660.379474][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.379474][ T254] netlink_unicast+0x449/0x710 [ 6660.379474][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.379474][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.379474][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.379474][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.379474][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.379474][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6660.379474][ T254] [ 6660.381214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6660.381214][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6660.381214][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6660.381214][ T254] ipv6_find_idev+0x102/0x170 [ 6660.381214][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6660.381214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6660.381214][ T254] netlink_rcv_skb+0x130/0x360 [ 6660.381214][ T254] netlink_unicast+0x449/0x710 [ 6660.381214][ T254] netlink_sendmsg+0x723/0xbe0 [ 6660.381214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6660.381214][ T254] ___sys_sendmsg+0xee/0x170 [ 6660.381214][ T254] __sys_sendmsg+0xcd/0x170 [ 6660.381214][ T254] do_syscall_64+0xc6/0x1e0 [ 6660.381214][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6660.381214][ T254] [ 6670.631846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6670.632327][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.632327][ T254] dst_init+0x84/0x4a0 [ 6670.632327][ T254] dst_alloc+0x97/0x150 [ 6670.632327][ T254] ip6_dst_alloc+0x23/0x90 [ 6670.632327][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6670.632327][ T254] ip6_pol_route+0x56f/0x840 [ 6670.632327][ T254] fib6_rule_lookup+0x334/0x630 [ 6670.632327][ T254] ip6_route_output_flags+0x259/0x480 [ 6670.632327][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6670.632327][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6670.632327][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.632327][ T254] netlink_unicast+0x449/0x710 [ 6670.632327][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.632327][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.632327][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.632327][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.632327][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.632327][ T254] [ 6670.634550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.634550][ T254] netdev_get_by_index+0x5e/0x80 [ 6670.634550][ T254] fib6_nh_init+0x3d8/0x1580 [ 6670.634550][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6670.634550][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6670.634550][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6670.634550][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6670.634550][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6670.634550][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6670.634550][ T254] addrconf_dad_begin+0x310/0x670 [ 6670.634550][ T254] addrconf_dad_work+0x10b/0xab0 [ 6670.634550][ T254] process_one_work+0x84d/0x18a0 [ 6670.634550][ T254] worker_thread+0x587/0xd30 [ 6670.634550][ T254] kthread+0x28a/0x350 [ 6670.634550][ T254] ret_from_fork+0x31/0x70 [ 6670.634550][ T254] ret_from_fork_asm+0x1a/0x30 [ 6670.634550][ T254] [ 6670.636726][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.636726][ T254] netdev_get_by_index+0x5e/0x80 [ 6670.636726][ T254] fib6_nh_init+0x3d8/0x1580 [ 6670.636726][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6670.636726][ T254] ip6_route_add+0x1c/0x140 [ 6670.636726][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6670.636726][ T254] inet6_addr_add+0x4f8/0xa40 [ 6670.636726][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6670.636726][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6670.636726][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.636726][ T254] netlink_unicast+0x449/0x710 [ 6670.636726][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.636726][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.636726][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.636726][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.636726][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.636726][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6670.636726][ T254] [ 6670.638980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.638980][ T254] netdev_get_by_index+0x5e/0x80 [ 6670.638980][ T254] fib6_nh_init+0x3d8/0x1580 [ 6670.638980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6670.638980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6670.638980][ T254] ipv6_add_addr+0x411/0x2000 [ 6670.638980][ T254] inet6_addr_add+0x30e/0xa40 [ 6670.638980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6670.638980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6670.638980][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.638980][ T254] netlink_unicast+0x449/0x710 [ 6670.638980][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.638980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.638980][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.638980][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.638980][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.638980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6670.638980][ T254] [ 6670.641239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.641239][ T254] netdev_get_by_index+0x5e/0x80 [ 6670.641239][ T254] fib6_nh_init+0x3d8/0x1580 [ 6670.641239][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6670.641239][ T254] ip6_route_add+0x1c/0x140 [ 6670.641239][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6670.641239][ T254] addrconf_add_dev+0xe2/0x170 [ 6670.641239][ T254] inet6_addr_add+0x12f/0xa40 [ 6670.641239][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6670.641239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6670.641239][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.641239][ T254] netlink_unicast+0x449/0x710 [ 6670.641239][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.641239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.641239][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.641239][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.641239][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.641239][ T254] [ 6670.643451][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.643451][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6670.643451][ T254] ipv6_find_idev+0x102/0x170 [ 6670.643451][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6670.643451][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6670.643451][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.643451][ T254] netlink_unicast+0x449/0x710 [ 6670.643451][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.643451][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.643451][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.643451][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.643451][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.643451][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6670.643451][ T254] [ 6670.645190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6670.645190][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6670.645190][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6670.645190][ T254] ipv6_find_idev+0x102/0x170 [ 6670.645190][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6670.645190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6670.645190][ T254] netlink_rcv_skb+0x130/0x360 [ 6670.645190][ T254] netlink_unicast+0x449/0x710 [ 6670.645190][ T254] netlink_sendmsg+0x723/0xbe0 [ 6670.645190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6670.645190][ T254] ___sys_sendmsg+0xee/0x170 [ 6670.645190][ T254] __sys_sendmsg+0xcd/0x170 [ 6670.645190][ T254] do_syscall_64+0xc6/0x1e0 [ 6670.645190][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6670.645190][ T254] [ 6680.895847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6680.896330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.896330][ T254] dst_init+0x84/0x4a0 [ 6680.896330][ T254] dst_alloc+0x97/0x150 [ 6680.896330][ T254] ip6_dst_alloc+0x23/0x90 [ 6680.896330][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6680.896330][ T254] ip6_pol_route+0x56f/0x840 [ 6680.896330][ T254] fib6_rule_lookup+0x334/0x630 [ 6680.896330][ T254] ip6_route_output_flags+0x259/0x480 [ 6680.896330][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6680.896330][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6680.896330][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.896330][ T254] netlink_unicast+0x449/0x710 [ 6680.896330][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.896330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.896330][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.896330][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.896330][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.896330][ T254] [ 6680.898519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.898519][ T254] netdev_get_by_index+0x5e/0x80 [ 6680.898519][ T254] fib6_nh_init+0x3d8/0x1580 [ 6680.898519][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6680.898519][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6680.898519][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6680.898519][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6680.898519][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6680.898519][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6680.898519][ T254] addrconf_dad_begin+0x310/0x670 [ 6680.898519][ T254] addrconf_dad_work+0x10b/0xab0 [ 6680.898519][ T254] process_one_work+0x84d/0x18a0 [ 6680.898519][ T254] worker_thread+0x587/0xd30 [ 6680.898519][ T254] kthread+0x28a/0x350 [ 6680.898519][ T254] ret_from_fork+0x31/0x70 [ 6680.898519][ T254] ret_from_fork_asm+0x1a/0x30 [ 6680.898519][ T254] [ 6680.900656][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.900656][ T254] netdev_get_by_index+0x5e/0x80 [ 6680.900656][ T254] fib6_nh_init+0x3d8/0x1580 [ 6680.900656][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6680.900656][ T254] ip6_route_add+0x1c/0x140 [ 6680.900656][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6680.900656][ T254] inet6_addr_add+0x4f8/0xa40 [ 6680.900656][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6680.900656][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6680.900656][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.900656][ T254] netlink_unicast+0x449/0x710 [ 6680.900656][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.900656][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.900656][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.900656][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.900656][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.900656][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6680.900656][ T254] [ 6680.902888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.902888][ T254] netdev_get_by_index+0x5e/0x80 [ 6680.902888][ T254] fib6_nh_init+0x3d8/0x1580 [ 6680.902888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6680.902888][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6680.902888][ T254] ipv6_add_addr+0x411/0x2000 [ 6680.902888][ T254] inet6_addr_add+0x30e/0xa40 [ 6680.902888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6680.902888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6680.902888][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.902888][ T254] netlink_unicast+0x449/0x710 [ 6680.902888][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.902888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.902888][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.902888][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.902888][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.902888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6680.902888][ T254] [ 6680.905123][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.905123][ T254] netdev_get_by_index+0x5e/0x80 [ 6680.905123][ T254] fib6_nh_init+0x3d8/0x1580 [ 6680.905123][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6680.905123][ T254] ip6_route_add+0x1c/0x140 [ 6680.905123][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6680.905123][ T254] addrconf_add_dev+0xe2/0x170 [ 6680.905123][ T254] inet6_addr_add+0x12f/0xa40 [ 6680.905123][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6680.905123][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6680.905123][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.905123][ T254] netlink_unicast+0x449/0x710 [ 6680.905123][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.905123][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.905123][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.905123][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.905123][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.905123][ T254] [ 6680.907326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.907326][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6680.907326][ T254] ipv6_find_idev+0x102/0x170 [ 6680.907326][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6680.907326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6680.907326][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.907326][ T254] netlink_unicast+0x449/0x710 [ 6680.907326][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.907326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.907326][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.907326][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.907326][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.907326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6680.907326][ T254] [ 6680.909056][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6680.909056][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6680.909056][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6680.909056][ T254] ipv6_find_idev+0x102/0x170 [ 6680.909056][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6680.909056][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6680.909056][ T254] netlink_rcv_skb+0x130/0x360 [ 6680.909056][ T254] netlink_unicast+0x449/0x710 [ 6680.909056][ T254] netlink_sendmsg+0x723/0xbe0 [ 6680.909056][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6680.909056][ T254] ___sys_sendmsg+0xee/0x170 [ 6680.909056][ T254] __sys_sendmsg+0xcd/0x170 [ 6680.909056][ T254] do_syscall_64+0xc6/0x1e0 [ 6680.909056][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6680.909056][ T254] [ 6691.159785][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6691.160245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.160245][ T254] dst_init+0x84/0x4a0 [ 6691.160245][ T254] dst_alloc+0x97/0x150 [ 6691.160245][ T254] ip6_dst_alloc+0x23/0x90 [ 6691.160245][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6691.160245][ T254] ip6_pol_route+0x56f/0x840 [ 6691.160245][ T254] fib6_rule_lookup+0x334/0x630 [ 6691.160245][ T254] ip6_route_output_flags+0x259/0x480 [ 6691.160245][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6691.160245][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6691.160245][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.160245][ T254] netlink_unicast+0x449/0x710 [ 6691.160245][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.160245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.160245][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.160245][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.160245][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.160245][ T254] [ 6691.162458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.162458][ T254] netdev_get_by_index+0x5e/0x80 [ 6691.162458][ T254] fib6_nh_init+0x3d8/0x1580 [ 6691.162458][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6691.162458][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6691.162458][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6691.162458][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6691.162458][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6691.162458][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6691.162458][ T254] addrconf_dad_begin+0x310/0x670 [ 6691.162458][ T254] addrconf_dad_work+0x10b/0xab0 [ 6691.162458][ T254] process_one_work+0x84d/0x18a0 [ 6691.162458][ T254] worker_thread+0x587/0xd30 [ 6691.162458][ T254] kthread+0x28a/0x350 [ 6691.162458][ T254] ret_from_fork+0x31/0x70 [ 6691.162458][ T254] ret_from_fork_asm+0x1a/0x30 [ 6691.162458][ T254] [ 6691.164607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.164607][ T254] netdev_get_by_index+0x5e/0x80 [ 6691.164607][ T254] fib6_nh_init+0x3d8/0x1580 [ 6691.164607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6691.164607][ T254] ip6_route_add+0x1c/0x140 [ 6691.164607][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6691.164607][ T254] inet6_addr_add+0x4f8/0xa40 [ 6691.164607][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6691.164607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6691.164607][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.164607][ T254] netlink_unicast+0x449/0x710 [ 6691.164607][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.164607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.164607][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.164607][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.164607][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.164607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6691.164607][ T254] [ 6691.166865][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.166865][ T254] netdev_get_by_index+0x5e/0x80 [ 6691.166865][ T254] fib6_nh_init+0x3d8/0x1580 [ 6691.166865][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6691.166865][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6691.166865][ T254] ipv6_add_addr+0x411/0x2000 [ 6691.166865][ T254] inet6_addr_add+0x30e/0xa40 [ 6691.166865][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6691.166865][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6691.166865][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.166865][ T254] netlink_unicast+0x449/0x710 [ 6691.166865][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.166865][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.166865][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.166865][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.166865][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.166865][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6691.166865][ T254] [ 6691.169108][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.169108][ T254] netdev_get_by_index+0x5e/0x80 [ 6691.169108][ T254] fib6_nh_init+0x3d8/0x1580 [ 6691.169108][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6691.169108][ T254] ip6_route_add+0x1c/0x140 [ 6691.169108][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6691.169108][ T254] addrconf_add_dev+0xe2/0x170 [ 6691.169108][ T254] inet6_addr_add+0x12f/0xa40 [ 6691.169108][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6691.169108][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6691.169108][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.169108][ T254] netlink_unicast+0x449/0x710 [ 6691.169108][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.169108][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.169108][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.169108][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.169108][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.169108][ T254] [ 6691.171318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.171318][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6691.171318][ T254] ipv6_find_idev+0x102/0x170 [ 6691.171318][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6691.171318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6691.171318][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.171318][ T254] netlink_unicast+0x449/0x710 [ 6691.171318][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.171318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.171318][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.171318][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.171318][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.171318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6691.171318][ T254] [ 6691.173042][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6691.173042][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6691.173042][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6691.173042][ T254] ipv6_find_idev+0x102/0x170 [ 6691.173042][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6691.173042][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6691.173042][ T254] netlink_rcv_skb+0x130/0x360 [ 6691.173042][ T254] netlink_unicast+0x449/0x710 [ 6691.173042][ T254] netlink_sendmsg+0x723/0xbe0 [ 6691.173042][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6691.173042][ T254] ___sys_sendmsg+0xee/0x170 [ 6691.173042][ T254] __sys_sendmsg+0xcd/0x170 [ 6691.173042][ T254] do_syscall_64+0xc6/0x1e0 [ 6691.173042][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6691.173042][ T254] [ 6701.423877][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6701.424362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.424362][ T254] dst_init+0x84/0x4a0 [ 6701.424362][ T254] dst_alloc+0x97/0x150 [ 6701.424362][ T254] ip6_dst_alloc+0x23/0x90 [ 6701.424362][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6701.424362][ T254] ip6_pol_route+0x56f/0x840 [ 6701.424362][ T254] fib6_rule_lookup+0x334/0x630 [ 6701.424362][ T254] ip6_route_output_flags+0x259/0x480 [ 6701.424362][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6701.424362][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6701.424362][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.424362][ T254] netlink_unicast+0x449/0x710 [ 6701.424362][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.424362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.424362][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.424362][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.424362][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.424362][ T254] [ 6701.426574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.426574][ T254] netdev_get_by_index+0x5e/0x80 [ 6701.426574][ T254] fib6_nh_init+0x3d8/0x1580 [ 6701.426574][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6701.426574][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6701.426574][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6701.426574][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6701.426574][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6701.426574][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6701.426574][ T254] addrconf_dad_begin+0x310/0x670 [ 6701.426574][ T254] addrconf_dad_work+0x10b/0xab0 [ 6701.426574][ T254] process_one_work+0x84d/0x18a0 [ 6701.426574][ T254] worker_thread+0x587/0xd30 [ 6701.426574][ T254] kthread+0x28a/0x350 [ 6701.426574][ T254] ret_from_fork+0x31/0x70 [ 6701.426574][ T254] ret_from_fork_asm+0x1a/0x30 [ 6701.426574][ T254] [ 6701.428712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.428712][ T254] netdev_get_by_index+0x5e/0x80 [ 6701.428712][ T254] fib6_nh_init+0x3d8/0x1580 [ 6701.428712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6701.428712][ T254] ip6_route_add+0x1c/0x140 [ 6701.428712][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6701.428712][ T254] inet6_addr_add+0x4f8/0xa40 [ 6701.428712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6701.428712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6701.428712][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.428712][ T254] netlink_unicast+0x449/0x710 [ 6701.428712][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.428712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.428712][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.428712][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.428712][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.428712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6701.428712][ T254] [ 6701.430954][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.430954][ T254] netdev_get_by_index+0x5e/0x80 [ 6701.430954][ T254] fib6_nh_init+0x3d8/0x1580 [ 6701.430954][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6701.430954][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6701.430954][ T254] ipv6_add_addr+0x411/0x2000 [ 6701.430954][ T254] inet6_addr_add+0x30e/0xa40 [ 6701.430954][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6701.430954][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6701.430954][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.430954][ T254] netlink_unicast+0x449/0x710 [ 6701.430954][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.430954][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.430954][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.430954][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.430954][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.430954][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6701.430954][ T254] [ 6701.433200][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.433200][ T254] netdev_get_by_index+0x5e/0x80 [ 6701.433200][ T254] fib6_nh_init+0x3d8/0x1580 [ 6701.433200][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6701.433200][ T254] ip6_route_add+0x1c/0x140 [ 6701.433200][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6701.433200][ T254] addrconf_add_dev+0xe2/0x170 [ 6701.433200][ T254] inet6_addr_add+0x12f/0xa40 [ 6701.433200][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6701.433200][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6701.433200][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.433200][ T254] netlink_unicast+0x449/0x710 [ 6701.433200][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.433200][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.433200][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.433200][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.433200][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.433200][ T254] [ 6701.435393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.435393][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6701.435393][ T254] ipv6_find_idev+0x102/0x170 [ 6701.435393][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6701.435393][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6701.435393][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.435393][ T254] netlink_unicast+0x449/0x710 [ 6701.435393][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.435393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.435393][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.435393][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.435393][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.435393][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6701.435393][ T254] [ 6701.437116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6701.437116][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6701.437116][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6701.437116][ T254] ipv6_find_idev+0x102/0x170 [ 6701.437116][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6701.437116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6701.437116][ T254] netlink_rcv_skb+0x130/0x360 [ 6701.437116][ T254] netlink_unicast+0x449/0x710 [ 6701.437116][ T254] netlink_sendmsg+0x723/0xbe0 [ 6701.437116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6701.437116][ T254] ___sys_sendmsg+0xee/0x170 [ 6701.437116][ T254] __sys_sendmsg+0xcd/0x170 [ 6701.437116][ T254] do_syscall_64+0xc6/0x1e0 [ 6701.437116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6701.437116][ T254] [ 6711.687781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6711.688249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.688249][ T254] dst_init+0x84/0x4a0 [ 6711.688249][ T254] dst_alloc+0x97/0x150 [ 6711.688249][ T254] ip6_dst_alloc+0x23/0x90 [ 6711.688249][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6711.688249][ T254] ip6_pol_route+0x56f/0x840 [ 6711.688249][ T254] fib6_rule_lookup+0x334/0x630 [ 6711.688249][ T254] ip6_route_output_flags+0x259/0x480 [ 6711.688249][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6711.688249][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6711.688249][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.688249][ T254] netlink_unicast+0x449/0x710 [ 6711.688249][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.688249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.688249][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.688249][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.688249][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.688249][ T254] [ 6711.690439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.690439][ T254] netdev_get_by_index+0x5e/0x80 [ 6711.690439][ T254] fib6_nh_init+0x3d8/0x1580 [ 6711.690439][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6711.690439][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6711.690439][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6711.690439][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6711.690439][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6711.690439][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6711.690439][ T254] addrconf_dad_begin+0x310/0x670 [ 6711.690439][ T254] addrconf_dad_work+0x10b/0xab0 [ 6711.690439][ T254] process_one_work+0x84d/0x18a0 [ 6711.690439][ T254] worker_thread+0x587/0xd30 [ 6711.690439][ T254] kthread+0x28a/0x350 [ 6711.690439][ T254] ret_from_fork+0x31/0x70 [ 6711.690439][ T254] ret_from_fork_asm+0x1a/0x30 [ 6711.690439][ T254] [ 6711.692605][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.692605][ T254] netdev_get_by_index+0x5e/0x80 [ 6711.692605][ T254] fib6_nh_init+0x3d8/0x1580 [ 6711.692605][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6711.692605][ T254] ip6_route_add+0x1c/0x140 [ 6711.692605][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6711.692605][ T254] inet6_addr_add+0x4f8/0xa40 [ 6711.692605][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6711.692605][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6711.692605][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.692605][ T254] netlink_unicast+0x449/0x710 [ 6711.692605][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.692605][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.692605][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.692605][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.692605][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.692605][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6711.692605][ T254] [ 6711.694842][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.694842][ T254] netdev_get_by_index+0x5e/0x80 [ 6711.694842][ T254] fib6_nh_init+0x3d8/0x1580 [ 6711.694842][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6711.694842][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6711.694842][ T254] ipv6_add_addr+0x411/0x2000 [ 6711.694842][ T254] inet6_addr_add+0x30e/0xa40 [ 6711.694842][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6711.694842][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6711.694842][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.694842][ T254] netlink_unicast+0x449/0x710 [ 6711.694842][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.694842][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.694842][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.694842][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.694842][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.694842][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6711.694842][ T254] [ 6711.697092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.697092][ T254] netdev_get_by_index+0x5e/0x80 [ 6711.697092][ T254] fib6_nh_init+0x3d8/0x1580 [ 6711.697092][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6711.697092][ T254] ip6_route_add+0x1c/0x140 [ 6711.697092][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6711.697092][ T254] addrconf_add_dev+0xe2/0x170 [ 6711.697092][ T254] inet6_addr_add+0x12f/0xa40 [ 6711.697092][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6711.697092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6711.697092][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.697092][ T254] netlink_unicast+0x449/0x710 [ 6711.697092][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.697092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.697092][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.697092][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.697092][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.697092][ T254] [ 6711.699317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.699317][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6711.699317][ T254] ipv6_find_idev+0x102/0x170 [ 6711.699317][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6711.699317][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6711.699317][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.699317][ T254] netlink_unicast+0x449/0x710 [ 6711.699317][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.699317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.699317][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.699317][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.699317][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.699317][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6711.699317][ T254] [ 6711.701041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6711.701041][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6711.701041][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6711.701041][ T254] ipv6_find_idev+0x102/0x170 [ 6711.701041][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6711.701041][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6711.701041][ T254] netlink_rcv_skb+0x130/0x360 [ 6711.701041][ T254] netlink_unicast+0x449/0x710 [ 6711.701041][ T254] netlink_sendmsg+0x723/0xbe0 [ 6711.701041][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6711.701041][ T254] ___sys_sendmsg+0xee/0x170 [ 6711.701041][ T254] __sys_sendmsg+0xcd/0x170 [ 6711.701041][ T254] do_syscall_64+0xc6/0x1e0 [ 6711.701041][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6711.701041][ T254] [ 6721.951846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6721.952328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.952328][ T254] dst_init+0x84/0x4a0 [ 6721.952328][ T254] dst_alloc+0x97/0x150 [ 6721.952328][ T254] ip6_dst_alloc+0x23/0x90 [ 6721.952328][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6721.952328][ T254] ip6_pol_route+0x56f/0x840 [ 6721.952328][ T254] fib6_rule_lookup+0x334/0x630 [ 6721.952328][ T254] ip6_route_output_flags+0x259/0x480 [ 6721.952328][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6721.952328][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6721.952328][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.952328][ T254] netlink_unicast+0x449/0x710 [ 6721.952328][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.952328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.952328][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.952328][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.952328][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.952328][ T254] [ 6721.954536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.954536][ T254] netdev_get_by_index+0x5e/0x80 [ 6721.954536][ T254] fib6_nh_init+0x3d8/0x1580 [ 6721.954536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6721.954536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6721.954536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6721.954536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6721.954536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6721.954536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6721.954536][ T254] addrconf_dad_begin+0x310/0x670 [ 6721.954536][ T254] addrconf_dad_work+0x10b/0xab0 [ 6721.954536][ T254] process_one_work+0x84d/0x18a0 [ 6721.954536][ T254] worker_thread+0x587/0xd30 [ 6721.954536][ T254] kthread+0x28a/0x350 [ 6721.954536][ T254] ret_from_fork+0x31/0x70 [ 6721.954536][ T254] ret_from_fork_asm+0x1a/0x30 [ 6721.954536][ T254] [ 6721.956699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.956699][ T254] netdev_get_by_index+0x5e/0x80 [ 6721.956699][ T254] fib6_nh_init+0x3d8/0x1580 [ 6721.956699][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6721.956699][ T254] ip6_route_add+0x1c/0x140 [ 6721.956699][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6721.956699][ T254] inet6_addr_add+0x4f8/0xa40 [ 6721.956699][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6721.956699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6721.956699][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.956699][ T254] netlink_unicast+0x449/0x710 [ 6721.956699][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.956699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.956699][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.956699][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.956699][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.956699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6721.956699][ T254] [ 6721.958944][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.958944][ T254] netdev_get_by_index+0x5e/0x80 [ 6721.958944][ T254] fib6_nh_init+0x3d8/0x1580 [ 6721.958944][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6721.958944][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6721.958944][ T254] ipv6_add_addr+0x411/0x2000 [ 6721.958944][ T254] inet6_addr_add+0x30e/0xa40 [ 6721.958944][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6721.958944][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6721.958944][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.958944][ T254] netlink_unicast+0x449/0x710 [ 6721.958944][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.958944][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.958944][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.958944][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.958944][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.958944][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6721.958944][ T254] [ 6721.961194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.961194][ T254] netdev_get_by_index+0x5e/0x80 [ 6721.961194][ T254] fib6_nh_init+0x3d8/0x1580 [ 6721.961194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6721.961194][ T254] ip6_route_add+0x1c/0x140 [ 6721.961194][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6721.961194][ T254] addrconf_add_dev+0xe2/0x170 [ 6721.961194][ T254] inet6_addr_add+0x12f/0xa40 [ 6721.961194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6721.961194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6721.961194][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.961194][ T254] netlink_unicast+0x449/0x710 [ 6721.961194][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.961194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.961194][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.961194][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.961194][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.961194][ T254] [ 6721.963396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.963396][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6721.963396][ T254] ipv6_find_idev+0x102/0x170 [ 6721.963396][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6721.963396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6721.963396][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.963396][ T254] netlink_unicast+0x449/0x710 [ 6721.963396][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.963396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.963396][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.963396][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.963396][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.963396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6721.963396][ T254] [ 6721.965122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6721.965122][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6721.965122][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6721.965122][ T254] ipv6_find_idev+0x102/0x170 [ 6721.965122][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6721.965122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6721.965122][ T254] netlink_rcv_skb+0x130/0x360 [ 6721.965122][ T254] netlink_unicast+0x449/0x710 [ 6721.965122][ T254] netlink_sendmsg+0x723/0xbe0 [ 6721.965122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6721.965122][ T254] ___sys_sendmsg+0xee/0x170 [ 6721.965122][ T254] __sys_sendmsg+0xcd/0x170 [ 6721.965122][ T254] do_syscall_64+0xc6/0x1e0 [ 6721.965122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6721.965122][ T254] [ 6732.103839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6732.104328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.104328][ T254] dst_init+0x84/0x4a0 [ 6732.104328][ T254] dst_alloc+0x97/0x150 [ 6732.104328][ T254] ip6_dst_alloc+0x23/0x90 [ 6732.104328][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6732.104328][ T254] ip6_pol_route+0x56f/0x840 [ 6732.104328][ T254] fib6_rule_lookup+0x334/0x630 [ 6732.104328][ T254] ip6_route_output_flags+0x259/0x480 [ 6732.104328][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6732.104328][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6732.104328][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.104328][ T254] netlink_unicast+0x449/0x710 [ 6732.104328][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.104328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.104328][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.104328][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.104328][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.104328][ T254] [ 6732.106536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.106536][ T254] netdev_get_by_index+0x5e/0x80 [ 6732.106536][ T254] fib6_nh_init+0x3d8/0x1580 [ 6732.106536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6732.106536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6732.106536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6732.106536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6732.106536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6732.106536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6732.106536][ T254] addrconf_dad_begin+0x310/0x670 [ 6732.106536][ T254] addrconf_dad_work+0x10b/0xab0 [ 6732.106536][ T254] process_one_work+0x84d/0x18a0 [ 6732.106536][ T254] worker_thread+0x587/0xd30 [ 6732.106536][ T254] kthread+0x28a/0x350 [ 6732.106536][ T254] ret_from_fork+0x31/0x70 [ 6732.106536][ T254] ret_from_fork_asm+0x1a/0x30 [ 6732.106536][ T254] [ 6732.108677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.108677][ T254] netdev_get_by_index+0x5e/0x80 [ 6732.108677][ T254] fib6_nh_init+0x3d8/0x1580 [ 6732.108677][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6732.108677][ T254] ip6_route_add+0x1c/0x140 [ 6732.108677][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6732.108677][ T254] inet6_addr_add+0x4f8/0xa40 [ 6732.108677][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6732.108677][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6732.108677][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.108677][ T254] netlink_unicast+0x449/0x710 [ 6732.108677][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.108677][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.108677][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.108677][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.108677][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.108677][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6732.108677][ T254] [ 6732.110917][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.110917][ T254] netdev_get_by_index+0x5e/0x80 [ 6732.110917][ T254] fib6_nh_init+0x3d8/0x1580 [ 6732.110917][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6732.110917][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6732.110917][ T254] ipv6_add_addr+0x411/0x2000 [ 6732.110917][ T254] inet6_addr_add+0x30e/0xa40 [ 6732.110917][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6732.110917][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6732.110917][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.110917][ T254] netlink_unicast+0x449/0x710 [ 6732.110917][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.110917][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.110917][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.110917][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.110917][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.110917][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6732.110917][ T254] [ 6732.113157][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.113157][ T254] netdev_get_by_index+0x5e/0x80 [ 6732.113157][ T254] fib6_nh_init+0x3d8/0x1580 [ 6732.113157][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6732.113157][ T254] ip6_route_add+0x1c/0x140 [ 6732.113157][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6732.113157][ T254] addrconf_add_dev+0xe2/0x170 [ 6732.113157][ T254] inet6_addr_add+0x12f/0xa40 [ 6732.113157][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6732.113157][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6732.113157][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.113157][ T254] netlink_unicast+0x449/0x710 [ 6732.113157][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.113157][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.113157][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.113157][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.113157][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.113157][ T254] [ 6732.115359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.115359][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6732.115359][ T254] ipv6_find_idev+0x102/0x170 [ 6732.115359][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6732.115359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6732.115359][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.115359][ T254] netlink_unicast+0x449/0x710 [ 6732.115359][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.115359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.115359][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.115359][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.115359][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.115359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6732.115359][ T254] [ 6732.117088][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6732.117088][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6732.117088][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6732.117088][ T254] ipv6_find_idev+0x102/0x170 [ 6732.117088][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6732.117088][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6732.117088][ T254] netlink_rcv_skb+0x130/0x360 [ 6732.117088][ T254] netlink_unicast+0x449/0x710 [ 6732.117088][ T254] netlink_sendmsg+0x723/0xbe0 [ 6732.117088][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6732.117088][ T254] ___sys_sendmsg+0xee/0x170 [ 6732.117088][ T254] __sys_sendmsg+0xcd/0x170 [ 6732.117088][ T254] do_syscall_64+0xc6/0x1e0 [ 6732.117088][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6732.117088][ T254] [ 6742.271846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6742.272323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.272323][ T254] dst_init+0x84/0x4a0 [ 6742.272323][ T254] dst_alloc+0x97/0x150 [ 6742.272323][ T254] ip6_dst_alloc+0x23/0x90 [ 6742.272323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6742.272323][ T254] ip6_pol_route+0x56f/0x840 [ 6742.272323][ T254] fib6_rule_lookup+0x334/0x630 [ 6742.272323][ T254] ip6_route_output_flags+0x259/0x480 [ 6742.272323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6742.272323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6742.272323][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.272323][ T254] netlink_unicast+0x449/0x710 [ 6742.272323][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.272323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.272323][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.272323][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.272323][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.272323][ T254] [ 6742.274541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.274541][ T254] netdev_get_by_index+0x5e/0x80 [ 6742.274541][ T254] fib6_nh_init+0x3d8/0x1580 [ 6742.274541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6742.274541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6742.274541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6742.274541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6742.274541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6742.274541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6742.274541][ T254] addrconf_dad_begin+0x310/0x670 [ 6742.274541][ T254] addrconf_dad_work+0x10b/0xab0 [ 6742.274541][ T254] process_one_work+0x84d/0x18a0 [ 6742.274541][ T254] worker_thread+0x587/0xd30 [ 6742.274541][ T254] kthread+0x28a/0x350 [ 6742.274541][ T254] ret_from_fork+0x31/0x70 [ 6742.274541][ T254] ret_from_fork_asm+0x1a/0x30 [ 6742.274541][ T254] [ 6742.276716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.276716][ T254] netdev_get_by_index+0x5e/0x80 [ 6742.276716][ T254] fib6_nh_init+0x3d8/0x1580 [ 6742.276716][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6742.276716][ T254] ip6_route_add+0x1c/0x140 [ 6742.276716][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6742.276716][ T254] inet6_addr_add+0x4f8/0xa40 [ 6742.276716][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6742.276716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6742.276716][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.276716][ T254] netlink_unicast+0x449/0x710 [ 6742.276716][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.276716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.276716][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.276716][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.276716][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.276716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6742.276716][ T254] [ 6742.278977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.278977][ T254] netdev_get_by_index+0x5e/0x80 [ 6742.278977][ T254] fib6_nh_init+0x3d8/0x1580 [ 6742.278977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6742.278977][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6742.278977][ T254] ipv6_add_addr+0x411/0x2000 [ 6742.278977][ T254] inet6_addr_add+0x30e/0xa40 [ 6742.278977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6742.278977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6742.278977][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.278977][ T254] netlink_unicast+0x449/0x710 [ 6742.278977][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.278977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.278977][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.278977][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.278977][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.278977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6742.278977][ T254] [ 6742.281256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.281256][ T254] netdev_get_by_index+0x5e/0x80 [ 6742.281256][ T254] fib6_nh_init+0x3d8/0x1580 [ 6742.281256][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6742.281256][ T254] ip6_route_add+0x1c/0x140 [ 6742.281256][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6742.281256][ T254] addrconf_add_dev+0xe2/0x170 [ 6742.281256][ T254] inet6_addr_add+0x12f/0xa40 [ 6742.281256][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6742.281256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6742.281256][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.281256][ T254] netlink_unicast+0x449/0x710 [ 6742.281256][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.281256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.281256][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.281256][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.281256][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.281256][ T254] [ 6742.283468][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.283468][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6742.283468][ T254] ipv6_find_idev+0x102/0x170 [ 6742.283468][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6742.283468][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6742.283468][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.283468][ T254] netlink_unicast+0x449/0x710 [ 6742.283468][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.283468][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.283468][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.283468][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.283468][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.283468][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6742.283468][ T254] [ 6742.285208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6742.285208][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6742.285208][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6742.285208][ T254] ipv6_find_idev+0x102/0x170 [ 6742.285208][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6742.285208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6742.285208][ T254] netlink_rcv_skb+0x130/0x360 [ 6742.285208][ T254] netlink_unicast+0x449/0x710 [ 6742.285208][ T254] netlink_sendmsg+0x723/0xbe0 [ 6742.285208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6742.285208][ T254] ___sys_sendmsg+0xee/0x170 [ 6742.285208][ T254] __sys_sendmsg+0xcd/0x170 [ 6742.285208][ T254] do_syscall_64+0xc6/0x1e0 [ 6742.285208][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6742.285208][ T254] [ 6752.351848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6752.352333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.352333][ T254] dst_init+0x84/0x4a0 [ 6752.352333][ T254] dst_alloc+0x97/0x150 [ 6752.352333][ T254] ip6_dst_alloc+0x23/0x90 [ 6752.352333][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6752.352333][ T254] ip6_pol_route+0x56f/0x840 [ 6752.352333][ T254] fib6_rule_lookup+0x334/0x630 [ 6752.352333][ T254] ip6_route_output_flags+0x259/0x480 [ 6752.352333][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6752.352333][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6752.352333][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.352333][ T254] netlink_unicast+0x449/0x710 [ 6752.352333][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.352333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.352333][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.352333][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.352333][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.352333][ T254] [ 6752.354547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.354547][ T254] netdev_get_by_index+0x5e/0x80 [ 6752.354547][ T254] fib6_nh_init+0x3d8/0x1580 [ 6752.354547][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6752.354547][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6752.354547][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6752.354547][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6752.354547][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6752.354547][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6752.354547][ T254] addrconf_dad_begin+0x310/0x670 [ 6752.354547][ T254] addrconf_dad_work+0x10b/0xab0 [ 6752.354547][ T254] process_one_work+0x84d/0x18a0 [ 6752.354547][ T254] worker_thread+0x587/0xd30 [ 6752.354547][ T254] kthread+0x28a/0x350 [ 6752.354547][ T254] ret_from_fork+0x31/0x70 [ 6752.354547][ T254] ret_from_fork_asm+0x1a/0x30 [ 6752.354547][ T254] [ 6752.356728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.356728][ T254] netdev_get_by_index+0x5e/0x80 [ 6752.356728][ T254] fib6_nh_init+0x3d8/0x1580 [ 6752.356728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6752.356728][ T254] ip6_route_add+0x1c/0x140 [ 6752.356728][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6752.356728][ T254] inet6_addr_add+0x4f8/0xa40 [ 6752.356728][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6752.356728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6752.356728][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.356728][ T254] netlink_unicast+0x449/0x710 [ 6752.356728][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.356728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.356728][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.356728][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.356728][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.356728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6752.356728][ T254] [ 6752.358997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.358997][ T254] netdev_get_by_index+0x5e/0x80 [ 6752.358997][ T254] fib6_nh_init+0x3d8/0x1580 [ 6752.358997][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6752.358997][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6752.358997][ T254] ipv6_add_addr+0x411/0x2000 [ 6752.358997][ T254] inet6_addr_add+0x30e/0xa40 [ 6752.358997][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6752.358997][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6752.358997][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.358997][ T254] netlink_unicast+0x449/0x710 [ 6752.358997][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.358997][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.358997][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.358997][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.358997][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.358997][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6752.358997][ T254] [ 6752.361257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.361257][ T254] netdev_get_by_index+0x5e/0x80 [ 6752.361257][ T254] fib6_nh_init+0x3d8/0x1580 [ 6752.361257][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6752.361257][ T254] ip6_route_add+0x1c/0x140 [ 6752.361257][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6752.361257][ T254] addrconf_add_dev+0xe2/0x170 [ 6752.361257][ T254] inet6_addr_add+0x12f/0xa40 [ 6752.361257][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6752.361257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6752.361257][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.361257][ T254] netlink_unicast+0x449/0x710 [ 6752.361257][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.361257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.361257][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.361257][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.361257][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.361257][ T254] [ 6752.363470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.363470][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6752.363470][ T254] ipv6_find_idev+0x102/0x170 [ 6752.363470][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6752.363470][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6752.363470][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.363470][ T254] netlink_unicast+0x449/0x710 [ 6752.363470][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.363470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.363470][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.363470][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.363470][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.363470][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6752.363470][ T254] [ 6752.365207][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6752.365207][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6752.365207][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6752.365207][ T254] ipv6_find_idev+0x102/0x170 [ 6752.365207][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6752.365207][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6752.365207][ T254] netlink_rcv_skb+0x130/0x360 [ 6752.365207][ T254] netlink_unicast+0x449/0x710 [ 6752.365207][ T254] netlink_sendmsg+0x723/0xbe0 [ 6752.365207][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6752.365207][ T254] ___sys_sendmsg+0xee/0x170 [ 6752.365207][ T254] __sys_sendmsg+0xcd/0x170 [ 6752.365207][ T254] do_syscall_64+0xc6/0x1e0 [ 6752.365207][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6752.365207][ T254] [ 6762.607838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6762.608320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.608320][ T254] dst_init+0x84/0x4a0 [ 6762.608320][ T254] dst_alloc+0x97/0x150 [ 6762.608320][ T254] ip6_dst_alloc+0x23/0x90 [ 6762.608320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6762.608320][ T254] ip6_pol_route+0x56f/0x840 [ 6762.608320][ T254] fib6_rule_lookup+0x334/0x630 [ 6762.608320][ T254] ip6_route_output_flags+0x259/0x480 [ 6762.608320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6762.608320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6762.608320][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.608320][ T254] netlink_unicast+0x449/0x710 [ 6762.608320][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.608320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.608320][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.608320][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.608320][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.608320][ T254] [ 6762.610541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.610541][ T254] netdev_get_by_index+0x5e/0x80 [ 6762.610541][ T254] fib6_nh_init+0x3d8/0x1580 [ 6762.610541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6762.610541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6762.610541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6762.610541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6762.610541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6762.610541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6762.610541][ T254] addrconf_dad_begin+0x310/0x670 [ 6762.610541][ T254] addrconf_dad_work+0x10b/0xab0 [ 6762.610541][ T254] process_one_work+0x84d/0x18a0 [ 6762.610541][ T254] worker_thread+0x587/0xd30 [ 6762.610541][ T254] kthread+0x28a/0x350 [ 6762.610541][ T254] ret_from_fork+0x31/0x70 [ 6762.610541][ T254] ret_from_fork_asm+0x1a/0x30 [ 6762.610541][ T254] [ 6762.612709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.612709][ T254] netdev_get_by_index+0x5e/0x80 [ 6762.612709][ T254] fib6_nh_init+0x3d8/0x1580 [ 6762.612709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6762.612709][ T254] ip6_route_add+0x1c/0x140 [ 6762.612709][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6762.612709][ T254] inet6_addr_add+0x4f8/0xa40 [ 6762.612709][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6762.612709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6762.612709][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.612709][ T254] netlink_unicast+0x449/0x710 [ 6762.612709][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.612709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.612709][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.612709][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.612709][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.612709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6762.612709][ T254] [ 6762.614977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.614977][ T254] netdev_get_by_index+0x5e/0x80 [ 6762.614977][ T254] fib6_nh_init+0x3d8/0x1580 [ 6762.614977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6762.614977][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6762.614977][ T254] ipv6_add_addr+0x411/0x2000 [ 6762.614977][ T254] inet6_addr_add+0x30e/0xa40 [ 6762.614977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6762.614977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6762.614977][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.614977][ T254] netlink_unicast+0x449/0x710 [ 6762.614977][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.614977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.614977][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.614977][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.614977][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.614977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6762.614977][ T254] [ 6762.617263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.617263][ T254] netdev_get_by_index+0x5e/0x80 [ 6762.617263][ T254] fib6_nh_init+0x3d8/0x1580 [ 6762.617263][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6762.617263][ T254] ip6_route_add+0x1c/0x140 [ 6762.617263][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6762.617263][ T254] addrconf_add_dev+0xe2/0x170 [ 6762.617263][ T254] inet6_addr_add+0x12f/0xa40 [ 6762.617263][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6762.617263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6762.617263][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.617263][ T254] netlink_unicast+0x449/0x710 [ 6762.617263][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.617263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.617263][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.617263][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.617263][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.617263][ T254] [ 6762.619487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.619487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6762.619487][ T254] ipv6_find_idev+0x102/0x170 [ 6762.619487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6762.619487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6762.619487][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.619487][ T254] netlink_unicast+0x449/0x710 [ 6762.619487][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.619487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.619487][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.619487][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.619487][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.619487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6762.619487][ T254] [ 6762.621224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6762.621224][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6762.621224][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6762.621224][ T254] ipv6_find_idev+0x102/0x170 [ 6762.621224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6762.621224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6762.621224][ T254] netlink_rcv_skb+0x130/0x360 [ 6762.621224][ T254] netlink_unicast+0x449/0x710 [ 6762.621224][ T254] netlink_sendmsg+0x723/0xbe0 [ 6762.621224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6762.621224][ T254] ___sys_sendmsg+0xee/0x170 [ 6762.621224][ T254] __sys_sendmsg+0xcd/0x170 [ 6762.621224][ T254] do_syscall_64+0xc6/0x1e0 [ 6762.621224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6762.621224][ T254] [ 6772.703785][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6772.704270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.704270][ T254] dst_init+0x84/0x4a0 [ 6772.704270][ T254] dst_alloc+0x97/0x150 [ 6772.704270][ T254] ip6_dst_alloc+0x23/0x90 [ 6772.704270][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6772.704270][ T254] ip6_pol_route+0x56f/0x840 [ 6772.704270][ T254] fib6_rule_lookup+0x334/0x630 [ 6772.704270][ T254] ip6_route_output_flags+0x259/0x480 [ 6772.704270][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6772.704270][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6772.704270][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.704270][ T254] netlink_unicast+0x449/0x710 [ 6772.704270][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.704270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.704270][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.704270][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.704270][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.704270][ T254] [ 6772.706485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.706485][ T254] netdev_get_by_index+0x5e/0x80 [ 6772.706485][ T254] fib6_nh_init+0x3d8/0x1580 [ 6772.706485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6772.706485][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6772.706485][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6772.706485][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6772.706485][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6772.706485][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6772.706485][ T254] addrconf_dad_begin+0x310/0x670 [ 6772.706485][ T254] addrconf_dad_work+0x10b/0xab0 [ 6772.706485][ T254] process_one_work+0x84d/0x18a0 [ 6772.706485][ T254] worker_thread+0x587/0xd30 [ 6772.706485][ T254] kthread+0x28a/0x350 [ 6772.706485][ T254] ret_from_fork+0x31/0x70 [ 6772.706485][ T254] ret_from_fork_asm+0x1a/0x30 [ 6772.706485][ T254] [ 6772.708658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.708658][ T254] netdev_get_by_index+0x5e/0x80 [ 6772.708658][ T254] fib6_nh_init+0x3d8/0x1580 [ 6772.708658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6772.708658][ T254] ip6_route_add+0x1c/0x140 [ 6772.708658][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6772.708658][ T254] inet6_addr_add+0x4f8/0xa40 [ 6772.708658][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6772.708658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6772.708658][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.708658][ T254] netlink_unicast+0x449/0x710 [ 6772.708658][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.708658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.708658][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.708658][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.708658][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.708658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6772.708658][ T254] [ 6772.710916][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.710916][ T254] netdev_get_by_index+0x5e/0x80 [ 6772.710916][ T254] fib6_nh_init+0x3d8/0x1580 [ 6772.710916][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6772.710916][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6772.710916][ T254] ipv6_add_addr+0x411/0x2000 [ 6772.710916][ T254] inet6_addr_add+0x30e/0xa40 [ 6772.710916][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6772.710916][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6772.710916][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.710916][ T254] netlink_unicast+0x449/0x710 [ 6772.710916][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.710916][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.710916][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.710916][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.710916][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.710916][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6772.710916][ T254] [ 6772.713177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.713177][ T254] netdev_get_by_index+0x5e/0x80 [ 6772.713177][ T254] fib6_nh_init+0x3d8/0x1580 [ 6772.713177][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6772.713177][ T254] ip6_route_add+0x1c/0x140 [ 6772.713177][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6772.713177][ T254] addrconf_add_dev+0xe2/0x170 [ 6772.713177][ T254] inet6_addr_add+0x12f/0xa40 [ 6772.713177][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6772.713177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6772.713177][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.713177][ T254] netlink_unicast+0x449/0x710 [ 6772.713177][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.713177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.713177][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.713177][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.713177][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.713177][ T254] [ 6772.715396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.715396][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6772.715396][ T254] ipv6_find_idev+0x102/0x170 [ 6772.715396][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6772.715396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6772.715396][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.715396][ T254] netlink_unicast+0x449/0x710 [ 6772.715396][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.715396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.715396][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.715396][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.715396][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.715396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6772.715396][ T254] [ 6772.717142][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6772.717142][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6772.717142][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6772.717142][ T254] ipv6_find_idev+0x102/0x170 [ 6772.717142][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6772.717142][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6772.717142][ T254] netlink_rcv_skb+0x130/0x360 [ 6772.717142][ T254] netlink_unicast+0x449/0x710 [ 6772.717142][ T254] netlink_sendmsg+0x723/0xbe0 [ 6772.717142][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6772.717142][ T254] ___sys_sendmsg+0xee/0x170 [ 6772.717142][ T254] __sys_sendmsg+0xcd/0x170 [ 6772.717142][ T254] do_syscall_64+0xc6/0x1e0 [ 6772.717142][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6772.717142][ T254] [ 6782.751925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6782.752412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.752412][ T254] dst_init+0x84/0x4a0 [ 6782.752412][ T254] dst_alloc+0x97/0x150 [ 6782.752412][ T254] ip6_dst_alloc+0x23/0x90 [ 6782.752412][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6782.752412][ T254] ip6_pol_route+0x56f/0x840 [ 6782.752412][ T254] fib6_rule_lookup+0x334/0x630 [ 6782.752412][ T254] ip6_route_output_flags+0x259/0x480 [ 6782.752412][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6782.752412][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6782.752412][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.752412][ T254] netlink_unicast+0x449/0x710 [ 6782.752412][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.752412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.752412][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.752412][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.752412][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.752412][ T254] [ 6782.754628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.754628][ T254] netdev_get_by_index+0x5e/0x80 [ 6782.754628][ T254] fib6_nh_init+0x3d8/0x1580 [ 6782.754628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6782.754628][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6782.754628][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6782.754628][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6782.754628][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6782.754628][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6782.754628][ T254] addrconf_dad_begin+0x310/0x670 [ 6782.754628][ T254] addrconf_dad_work+0x10b/0xab0 [ 6782.754628][ T254] process_one_work+0x84d/0x18a0 [ 6782.754628][ T254] worker_thread+0x587/0xd30 [ 6782.754628][ T254] kthread+0x28a/0x350 [ 6782.754628][ T254] ret_from_fork+0x31/0x70 [ 6782.754628][ T254] ret_from_fork_asm+0x1a/0x30 [ 6782.754628][ T254] [ 6782.756813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.756813][ T254] netdev_get_by_index+0x5e/0x80 [ 6782.756813][ T254] fib6_nh_init+0x3d8/0x1580 [ 6782.756813][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6782.756813][ T254] ip6_route_add+0x1c/0x140 [ 6782.756813][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6782.756813][ T254] inet6_addr_add+0x4f8/0xa40 [ 6782.756813][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6782.756813][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6782.756813][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.756813][ T254] netlink_unicast+0x449/0x710 [ 6782.756813][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.756813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.756813][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.756813][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.756813][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.756813][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6782.756813][ T254] [ 6782.759077][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.759077][ T254] netdev_get_by_index+0x5e/0x80 [ 6782.759077][ T254] fib6_nh_init+0x3d8/0x1580 [ 6782.759077][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6782.759077][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6782.759077][ T254] ipv6_add_addr+0x411/0x2000 [ 6782.759077][ T254] inet6_addr_add+0x30e/0xa40 [ 6782.759077][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6782.759077][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6782.759077][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.759077][ T254] netlink_unicast+0x449/0x710 [ 6782.759077][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.759077][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.759077][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.759077][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.759077][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.759077][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6782.759077][ T254] [ 6782.761335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.761335][ T254] netdev_get_by_index+0x5e/0x80 [ 6782.761335][ T254] fib6_nh_init+0x3d8/0x1580 [ 6782.761335][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6782.761335][ T254] ip6_route_add+0x1c/0x140 [ 6782.761335][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6782.761335][ T254] addrconf_add_dev+0xe2/0x170 [ 6782.761335][ T254] inet6_addr_add+0x12f/0xa40 [ 6782.761335][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6782.761335][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6782.761335][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.761335][ T254] netlink_unicast+0x449/0x710 [ 6782.761335][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.761335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.761335][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.761335][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.761335][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.761335][ T254] [ 6782.763551][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.763551][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6782.763551][ T254] ipv6_find_idev+0x102/0x170 [ 6782.763551][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6782.763551][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6782.763551][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.763551][ T254] netlink_unicast+0x449/0x710 [ 6782.763551][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.763551][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.763551][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.763551][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.763551][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.763551][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6782.763551][ T254] [ 6782.765293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6782.765293][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6782.765293][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6782.765293][ T254] ipv6_find_idev+0x102/0x170 [ 6782.765293][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6782.765293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6782.765293][ T254] netlink_rcv_skb+0x130/0x360 [ 6782.765293][ T254] netlink_unicast+0x449/0x710 [ 6782.765293][ T254] netlink_sendmsg+0x723/0xbe0 [ 6782.765293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6782.765293][ T254] ___sys_sendmsg+0xee/0x170 [ 6782.765293][ T254] __sys_sendmsg+0xcd/0x170 [ 6782.765293][ T254] do_syscall_64+0xc6/0x1e0 [ 6782.765293][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6782.765293][ T254] [ 6792.927842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6792.928341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.928341][ T254] dst_init+0x84/0x4a0 [ 6792.928341][ T254] dst_alloc+0x97/0x150 [ 6792.928341][ T254] ip6_dst_alloc+0x23/0x90 [ 6792.928341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6792.928341][ T254] ip6_pol_route+0x56f/0x840 [ 6792.928341][ T254] fib6_rule_lookup+0x334/0x630 [ 6792.928341][ T254] ip6_route_output_flags+0x259/0x480 [ 6792.928341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6792.928341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6792.928341][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.928341][ T254] netlink_unicast+0x449/0x710 [ 6792.928341][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.928341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.928341][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.928341][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.928341][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.928341][ T254] [ 6792.930559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.930559][ T254] netdev_get_by_index+0x5e/0x80 [ 6792.930559][ T254] fib6_nh_init+0x3d8/0x1580 [ 6792.930559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6792.930559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6792.930559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6792.930559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6792.930559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6792.930559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6792.930559][ T254] addrconf_dad_begin+0x310/0x670 [ 6792.930559][ T254] addrconf_dad_work+0x10b/0xab0 [ 6792.930559][ T254] process_one_work+0x84d/0x18a0 [ 6792.930559][ T254] worker_thread+0x587/0xd30 [ 6792.930559][ T254] kthread+0x28a/0x350 [ 6792.930559][ T254] ret_from_fork+0x31/0x70 [ 6792.930559][ T254] ret_from_fork_asm+0x1a/0x30 [ 6792.930559][ T254] [ 6792.932713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.932713][ T254] netdev_get_by_index+0x5e/0x80 [ 6792.932713][ T254] fib6_nh_init+0x3d8/0x1580 [ 6792.932713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6792.932713][ T254] ip6_route_add+0x1c/0x140 [ 6792.932713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6792.932713][ T254] inet6_addr_add+0x4f8/0xa40 [ 6792.932713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6792.932713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6792.932713][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.932713][ T254] netlink_unicast+0x449/0x710 [ 6792.932713][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.932713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.932713][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.932713][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.932713][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.932713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6792.932713][ T254] [ 6792.934968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.934968][ T254] netdev_get_by_index+0x5e/0x80 [ 6792.934968][ T254] fib6_nh_init+0x3d8/0x1580 [ 6792.934968][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6792.934968][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6792.934968][ T254] ipv6_add_addr+0x411/0x2000 [ 6792.934968][ T254] inet6_addr_add+0x30e/0xa40 [ 6792.934968][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6792.934968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6792.934968][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.934968][ T254] netlink_unicast+0x449/0x710 [ 6792.934968][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.934968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.934968][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.934968][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.934968][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.934968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6792.934968][ T254] [ 6792.937225][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.937225][ T254] netdev_get_by_index+0x5e/0x80 [ 6792.937225][ T254] fib6_nh_init+0x3d8/0x1580 [ 6792.937225][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6792.937225][ T254] ip6_route_add+0x1c/0x140 [ 6792.937225][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6792.937225][ T254] addrconf_add_dev+0xe2/0x170 [ 6792.937225][ T254] inet6_addr_add+0x12f/0xa40 [ 6792.937225][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6792.937225][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6792.937225][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.937225][ T254] netlink_unicast+0x449/0x710 [ 6792.937225][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.937225][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.937225][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.937225][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.937225][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.937225][ T254] [ 6792.939442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.939442][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6792.939442][ T254] ipv6_find_idev+0x102/0x170 [ 6792.939442][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6792.939442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6792.939442][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.939442][ T254] netlink_unicast+0x449/0x710 [ 6792.939442][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.939442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.939442][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.939442][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.939442][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.939442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6792.939442][ T254] [ 6792.941172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6792.941172][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6792.941172][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6792.941172][ T254] ipv6_find_idev+0x102/0x170 [ 6792.941172][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6792.941172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6792.941172][ T254] netlink_rcv_skb+0x130/0x360 [ 6792.941172][ T254] netlink_unicast+0x449/0x710 [ 6792.941172][ T254] netlink_sendmsg+0x723/0xbe0 [ 6792.941172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6792.941172][ T254] ___sys_sendmsg+0xee/0x170 [ 6792.941172][ T254] __sys_sendmsg+0xcd/0x170 [ 6792.941172][ T254] do_syscall_64+0xc6/0x1e0 [ 6792.941172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6792.941172][ T254] [ 6803.183851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6803.184317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.184317][ T254] dst_init+0x84/0x4a0 [ 6803.184317][ T254] dst_alloc+0x97/0x150 [ 6803.184317][ T254] ip6_dst_alloc+0x23/0x90 [ 6803.184317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6803.184317][ T254] ip6_pol_route+0x56f/0x840 [ 6803.184317][ T254] fib6_rule_lookup+0x334/0x630 [ 6803.184317][ T254] ip6_route_output_flags+0x259/0x480 [ 6803.184317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6803.184317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6803.184317][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.184317][ T254] netlink_unicast+0x449/0x710 [ 6803.184317][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.184317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.184317][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.184317][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.184317][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.184317][ T254] [ 6803.186532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.186532][ T254] netdev_get_by_index+0x5e/0x80 [ 6803.186532][ T254] fib6_nh_init+0x3d8/0x1580 [ 6803.186532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6803.186532][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6803.186532][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6803.186532][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6803.186532][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6803.186532][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6803.186532][ T254] addrconf_dad_begin+0x310/0x670 [ 6803.186532][ T254] addrconf_dad_work+0x10b/0xab0 [ 6803.186532][ T254] process_one_work+0x84d/0x18a0 [ 6803.186532][ T254] worker_thread+0x587/0xd30 [ 6803.186532][ T254] kthread+0x28a/0x350 [ 6803.186532][ T254] ret_from_fork+0x31/0x70 [ 6803.186532][ T254] ret_from_fork_asm+0x1a/0x30 [ 6803.186532][ T254] [ 6803.188692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.188692][ T254] netdev_get_by_index+0x5e/0x80 [ 6803.188692][ T254] fib6_nh_init+0x3d8/0x1580 [ 6803.188692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6803.188692][ T254] ip6_route_add+0x1c/0x140 [ 6803.188692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6803.188692][ T254] inet6_addr_add+0x4f8/0xa40 [ 6803.188692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6803.188692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6803.188692][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.188692][ T254] netlink_unicast+0x449/0x710 [ 6803.188692][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.188692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.188692][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.188692][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.188692][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.188692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6803.188692][ T254] [ 6803.190930][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.190930][ T254] netdev_get_by_index+0x5e/0x80 [ 6803.190930][ T254] fib6_nh_init+0x3d8/0x1580 [ 6803.190930][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6803.190930][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6803.190930][ T254] ipv6_add_addr+0x411/0x2000 [ 6803.190930][ T254] inet6_addr_add+0x30e/0xa40 [ 6803.190930][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6803.190930][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6803.190930][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.190930][ T254] netlink_unicast+0x449/0x710 [ 6803.190930][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.190930][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.190930][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.190930][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.190930][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.190930][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6803.190930][ T254] [ 6803.193169][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.193169][ T254] netdev_get_by_index+0x5e/0x80 [ 6803.193169][ T254] fib6_nh_init+0x3d8/0x1580 [ 6803.193169][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6803.193169][ T254] ip6_route_add+0x1c/0x140 [ 6803.193169][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6803.193169][ T254] addrconf_add_dev+0xe2/0x170 [ 6803.193169][ T254] inet6_addr_add+0x12f/0xa40 [ 6803.193169][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6803.193169][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6803.193169][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.193169][ T254] netlink_unicast+0x449/0x710 [ 6803.193169][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.193169][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.193169][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.193169][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.193169][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.193169][ T254] [ 6803.195366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.195366][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6803.195366][ T254] ipv6_find_idev+0x102/0x170 [ 6803.195366][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6803.195366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6803.195366][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.195366][ T254] netlink_unicast+0x449/0x710 [ 6803.195366][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.195366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.195366][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.195366][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.195366][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.195366][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6803.195366][ T254] [ 6803.197188][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6803.197188][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6803.197188][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6803.197188][ T254] ipv6_find_idev+0x102/0x170 [ 6803.197188][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6803.197188][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6803.197188][ T254] netlink_rcv_skb+0x130/0x360 [ 6803.197188][ T254] netlink_unicast+0x449/0x710 [ 6803.197188][ T254] netlink_sendmsg+0x723/0xbe0 [ 6803.197188][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6803.197188][ T254] ___sys_sendmsg+0xee/0x170 [ 6803.197188][ T254] __sys_sendmsg+0xcd/0x170 [ 6803.197188][ T254] do_syscall_64+0xc6/0x1e0 [ 6803.197188][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6803.197188][ T254] [ 6813.439848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6813.440307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.440307][ T254] dst_init+0x84/0x4a0 [ 6813.440307][ T254] dst_alloc+0x97/0x150 [ 6813.440307][ T254] ip6_dst_alloc+0x23/0x90 [ 6813.440307][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6813.440307][ T254] ip6_pol_route+0x56f/0x840 [ 6813.440307][ T254] fib6_rule_lookup+0x334/0x630 [ 6813.440307][ T254] ip6_route_output_flags+0x259/0x480 [ 6813.440307][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6813.440307][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6813.440307][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.440307][ T254] netlink_unicast+0x449/0x710 [ 6813.440307][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.440307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.440307][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.440307][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.440307][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.440307][ T254] [ 6813.442514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.442514][ T254] netdev_get_by_index+0x5e/0x80 [ 6813.442514][ T254] fib6_nh_init+0x3d8/0x1580 [ 6813.442514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6813.442514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6813.442514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6813.442514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6813.442514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6813.442514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6813.442514][ T254] addrconf_dad_begin+0x310/0x670 [ 6813.442514][ T254] addrconf_dad_work+0x10b/0xab0 [ 6813.442514][ T254] process_one_work+0x84d/0x18a0 [ 6813.442514][ T254] worker_thread+0x587/0xd30 [ 6813.442514][ T254] kthread+0x28a/0x350 [ 6813.442514][ T254] ret_from_fork+0x31/0x70 [ 6813.442514][ T254] ret_from_fork_asm+0x1a/0x30 [ 6813.442514][ T254] [ 6813.444650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.444650][ T254] netdev_get_by_index+0x5e/0x80 [ 6813.444650][ T254] fib6_nh_init+0x3d8/0x1580 [ 6813.444650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6813.444650][ T254] ip6_route_add+0x1c/0x140 [ 6813.444650][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6813.444650][ T254] inet6_addr_add+0x4f8/0xa40 [ 6813.444650][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6813.444650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6813.444650][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.444650][ T254] netlink_unicast+0x449/0x710 [ 6813.444650][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.444650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.444650][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.444650][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.444650][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.444650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6813.444650][ T254] [ 6813.446922][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.446922][ T254] netdev_get_by_index+0x5e/0x80 [ 6813.446922][ T254] fib6_nh_init+0x3d8/0x1580 [ 6813.446922][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6813.446922][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6813.446922][ T254] ipv6_add_addr+0x411/0x2000 [ 6813.446922][ T254] inet6_addr_add+0x30e/0xa40 [ 6813.446922][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6813.446922][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6813.446922][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.446922][ T254] netlink_unicast+0x449/0x710 [ 6813.446922][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.446922][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.446922][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.446922][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.446922][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.446922][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6813.446922][ T254] [ 6813.449158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.449158][ T254] netdev_get_by_index+0x5e/0x80 [ 6813.449158][ T254] fib6_nh_init+0x3d8/0x1580 [ 6813.449158][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6813.449158][ T254] ip6_route_add+0x1c/0x140 [ 6813.449158][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6813.449158][ T254] addrconf_add_dev+0xe2/0x170 [ 6813.449158][ T254] inet6_addr_add+0x12f/0xa40 [ 6813.449158][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6813.449158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6813.449158][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.449158][ T254] netlink_unicast+0x449/0x710 [ 6813.449158][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.449158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.449158][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.449158][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.449158][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.449158][ T254] [ 6813.451352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.451352][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6813.451352][ T254] ipv6_find_idev+0x102/0x170 [ 6813.451352][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6813.451352][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6813.451352][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.451352][ T254] netlink_unicast+0x449/0x710 [ 6813.451352][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.451352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.451352][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.451352][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.451352][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.451352][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6813.451352][ T254] [ 6813.453070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6813.453070][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6813.453070][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6813.453070][ T254] ipv6_find_idev+0x102/0x170 [ 6813.453070][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6813.453070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6813.453070][ T254] netlink_rcv_skb+0x130/0x360 [ 6813.453070][ T254] netlink_unicast+0x449/0x710 [ 6813.453070][ T254] netlink_sendmsg+0x723/0xbe0 [ 6813.453070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6813.453070][ T254] ___sys_sendmsg+0xee/0x170 [ 6813.453070][ T254] __sys_sendmsg+0xcd/0x170 [ 6813.453070][ T254] do_syscall_64+0xc6/0x1e0 [ 6813.453070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6813.453070][ T254] [ 6823.695846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6823.696316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.696316][ T254] dst_init+0x84/0x4a0 [ 6823.696316][ T254] dst_alloc+0x97/0x150 [ 6823.696316][ T254] ip6_dst_alloc+0x23/0x90 [ 6823.696316][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6823.696316][ T254] ip6_pol_route+0x56f/0x840 [ 6823.696316][ T254] fib6_rule_lookup+0x334/0x630 [ 6823.696316][ T254] ip6_route_output_flags+0x259/0x480 [ 6823.696316][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6823.696316][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6823.696316][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.696316][ T254] netlink_unicast+0x449/0x710 [ 6823.696316][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.696316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.696316][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.696316][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.696316][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.696316][ T254] [ 6823.698498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.698498][ T254] netdev_get_by_index+0x5e/0x80 [ 6823.698498][ T254] fib6_nh_init+0x3d8/0x1580 [ 6823.698498][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6823.698498][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6823.698498][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6823.698498][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6823.698498][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6823.698498][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6823.698498][ T254] addrconf_dad_begin+0x310/0x670 [ 6823.698498][ T254] addrconf_dad_work+0x10b/0xab0 [ 6823.698498][ T254] process_one_work+0x84d/0x18a0 [ 6823.698498][ T254] worker_thread+0x587/0xd30 [ 6823.698498][ T254] kthread+0x28a/0x350 [ 6823.698498][ T254] ret_from_fork+0x31/0x70 [ 6823.698498][ T254] ret_from_fork_asm+0x1a/0x30 [ 6823.698498][ T254] [ 6823.700635][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.700635][ T254] netdev_get_by_index+0x5e/0x80 [ 6823.700635][ T254] fib6_nh_init+0x3d8/0x1580 [ 6823.700635][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6823.700635][ T254] ip6_route_add+0x1c/0x140 [ 6823.700635][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6823.700635][ T254] inet6_addr_add+0x4f8/0xa40 [ 6823.700635][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6823.700635][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6823.700635][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.700635][ T254] netlink_unicast+0x449/0x710 [ 6823.700635][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.700635][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.700635][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.700635][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.700635][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.700635][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6823.700635][ T254] [ 6823.702875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.702875][ T254] netdev_get_by_index+0x5e/0x80 [ 6823.702875][ T254] fib6_nh_init+0x3d8/0x1580 [ 6823.702875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6823.702875][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6823.702875][ T254] ipv6_add_addr+0x411/0x2000 [ 6823.702875][ T254] inet6_addr_add+0x30e/0xa40 [ 6823.702875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6823.702875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6823.702875][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.702875][ T254] netlink_unicast+0x449/0x710 [ 6823.702875][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.702875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.702875][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.702875][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.702875][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.702875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6823.702875][ T254] [ 6823.705104][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.705104][ T254] netdev_get_by_index+0x5e/0x80 [ 6823.705104][ T254] fib6_nh_init+0x3d8/0x1580 [ 6823.705104][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6823.705104][ T254] ip6_route_add+0x1c/0x140 [ 6823.705104][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6823.705104][ T254] addrconf_add_dev+0xe2/0x170 [ 6823.705104][ T254] inet6_addr_add+0x12f/0xa40 [ 6823.705104][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6823.705104][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6823.705104][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.705104][ T254] netlink_unicast+0x449/0x710 [ 6823.705104][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.705104][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.705104][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.705104][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.705104][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.705104][ T254] [ 6823.707299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.707299][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6823.707299][ T254] ipv6_find_idev+0x102/0x170 [ 6823.707299][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6823.707299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6823.707299][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.707299][ T254] netlink_unicast+0x449/0x710 [ 6823.707299][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.707299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.707299][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.707299][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.707299][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.707299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6823.707299][ T254] [ 6823.709014][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6823.709014][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6823.709014][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6823.709014][ T254] ipv6_find_idev+0x102/0x170 [ 6823.709014][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6823.709014][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6823.709014][ T254] netlink_rcv_skb+0x130/0x360 [ 6823.709014][ T254] netlink_unicast+0x449/0x710 [ 6823.709014][ T254] netlink_sendmsg+0x723/0xbe0 [ 6823.709014][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6823.709014][ T254] ___sys_sendmsg+0xee/0x170 [ 6823.709014][ T254] __sys_sendmsg+0xcd/0x170 [ 6823.709014][ T254] do_syscall_64+0xc6/0x1e0 [ 6823.709014][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6823.709014][ T254] [ 6833.951843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6833.952340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.952340][ T254] dst_init+0x84/0x4a0 [ 6833.952340][ T254] dst_alloc+0x97/0x150 [ 6833.952340][ T254] ip6_dst_alloc+0x23/0x90 [ 6833.952340][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6833.952340][ T254] ip6_pol_route+0x56f/0x840 [ 6833.952340][ T254] fib6_rule_lookup+0x334/0x630 [ 6833.952340][ T254] ip6_route_output_flags+0x259/0x480 [ 6833.952340][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6833.952340][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6833.952340][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.952340][ T254] netlink_unicast+0x449/0x710 [ 6833.952340][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.952340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.952340][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.952340][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.952340][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.952340][ T254] [ 6833.954555][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.954555][ T254] netdev_get_by_index+0x5e/0x80 [ 6833.954555][ T254] fib6_nh_init+0x3d8/0x1580 [ 6833.954555][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6833.954555][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6833.954555][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6833.954555][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6833.954555][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6833.954555][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6833.954555][ T254] addrconf_dad_begin+0x310/0x670 [ 6833.954555][ T254] addrconf_dad_work+0x10b/0xab0 [ 6833.954555][ T254] process_one_work+0x84d/0x18a0 [ 6833.954555][ T254] worker_thread+0x587/0xd30 [ 6833.954555][ T254] kthread+0x28a/0x350 [ 6833.954555][ T254] ret_from_fork+0x31/0x70 [ 6833.954555][ T254] ret_from_fork_asm+0x1a/0x30 [ 6833.954555][ T254] [ 6833.956733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.956733][ T254] netdev_get_by_index+0x5e/0x80 [ 6833.956733][ T254] fib6_nh_init+0x3d8/0x1580 [ 6833.956733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6833.956733][ T254] ip6_route_add+0x1c/0x140 [ 6833.956733][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6833.956733][ T254] inet6_addr_add+0x4f8/0xa40 [ 6833.956733][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6833.956733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6833.956733][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.956733][ T254] netlink_unicast+0x449/0x710 [ 6833.956733][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.956733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.956733][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.956733][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.956733][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.956733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6833.956733][ T254] [ 6833.958994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.958994][ T254] netdev_get_by_index+0x5e/0x80 [ 6833.958994][ T254] fib6_nh_init+0x3d8/0x1580 [ 6833.958994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6833.958994][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6833.958994][ T254] ipv6_add_addr+0x411/0x2000 [ 6833.958994][ T254] inet6_addr_add+0x30e/0xa40 [ 6833.958994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6833.958994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6833.958994][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.958994][ T254] netlink_unicast+0x449/0x710 [ 6833.958994][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.958994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.958994][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.958994][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.958994][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.958994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6833.958994][ T254] [ 6833.961257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.961257][ T254] netdev_get_by_index+0x5e/0x80 [ 6833.961257][ T254] fib6_nh_init+0x3d8/0x1580 [ 6833.961257][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6833.961257][ T254] ip6_route_add+0x1c/0x140 [ 6833.961257][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6833.961257][ T254] addrconf_add_dev+0xe2/0x170 [ 6833.961257][ T254] inet6_addr_add+0x12f/0xa40 [ 6833.961257][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6833.961257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6833.961257][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.961257][ T254] netlink_unicast+0x449/0x710 [ 6833.961257][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.961257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.961257][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.961257][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.961257][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.961257][ T254] [ 6833.963476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.963476][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6833.963476][ T254] ipv6_find_idev+0x102/0x170 [ 6833.963476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6833.963476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6833.963476][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.963476][ T254] netlink_unicast+0x449/0x710 [ 6833.963476][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.963476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.963476][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.963476][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.963476][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.963476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6833.963476][ T254] [ 6833.965224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6833.965224][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6833.965224][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6833.965224][ T254] ipv6_find_idev+0x102/0x170 [ 6833.965224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6833.965224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6833.965224][ T254] netlink_rcv_skb+0x130/0x360 [ 6833.965224][ T254] netlink_unicast+0x449/0x710 [ 6833.965224][ T254] netlink_sendmsg+0x723/0xbe0 [ 6833.965224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6833.965224][ T254] ___sys_sendmsg+0xee/0x170 [ 6833.965224][ T254] __sys_sendmsg+0xcd/0x170 [ 6833.965224][ T254] do_syscall_64+0xc6/0x1e0 [ 6833.965224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6833.965224][ T254] [ 6844.007840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6844.008322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.008322][ T254] dst_init+0x84/0x4a0 [ 6844.008322][ T254] dst_alloc+0x97/0x150 [ 6844.008322][ T254] ip6_dst_alloc+0x23/0x90 [ 6844.008322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6844.008322][ T254] ip6_pol_route+0x56f/0x840 [ 6844.008322][ T254] fib6_rule_lookup+0x334/0x630 [ 6844.008322][ T254] ip6_route_output_flags+0x259/0x480 [ 6844.008322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6844.008322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6844.008322][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.008322][ T254] netlink_unicast+0x449/0x710 [ 6844.008322][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.008322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.008322][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.008322][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.008322][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.008322][ T254] [ 6844.010545][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.010545][ T254] netdev_get_by_index+0x5e/0x80 [ 6844.010545][ T254] fib6_nh_init+0x3d8/0x1580 [ 6844.010545][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6844.010545][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6844.010545][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6844.010545][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6844.010545][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6844.010545][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6844.010545][ T254] addrconf_dad_begin+0x310/0x670 [ 6844.010545][ T254] addrconf_dad_work+0x10b/0xab0 [ 6844.010545][ T254] process_one_work+0x84d/0x18a0 [ 6844.010545][ T254] worker_thread+0x587/0xd30 [ 6844.010545][ T254] kthread+0x28a/0x350 [ 6844.010545][ T254] ret_from_fork+0x31/0x70 [ 6844.010545][ T254] ret_from_fork_asm+0x1a/0x30 [ 6844.010545][ T254] [ 6844.012719][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.012719][ T254] netdev_get_by_index+0x5e/0x80 [ 6844.012719][ T254] fib6_nh_init+0x3d8/0x1580 [ 6844.012719][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6844.012719][ T254] ip6_route_add+0x1c/0x140 [ 6844.012719][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6844.012719][ T254] inet6_addr_add+0x4f8/0xa40 [ 6844.012719][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6844.012719][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6844.012719][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.012719][ T254] netlink_unicast+0x449/0x710 [ 6844.012719][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.012719][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.012719][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.012719][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.012719][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.012719][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6844.012719][ T254] [ 6844.014990][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.014990][ T254] netdev_get_by_index+0x5e/0x80 [ 6844.014990][ T254] fib6_nh_init+0x3d8/0x1580 [ 6844.014990][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6844.014990][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6844.014990][ T254] ipv6_add_addr+0x411/0x2000 [ 6844.014990][ T254] inet6_addr_add+0x30e/0xa40 [ 6844.014990][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6844.014990][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6844.014990][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.014990][ T254] netlink_unicast+0x449/0x710 [ 6844.014990][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.014990][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.014990][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.014990][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.014990][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.014990][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6844.014990][ T254] [ 6844.017256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.017256][ T254] netdev_get_by_index+0x5e/0x80 [ 6844.017256][ T254] fib6_nh_init+0x3d8/0x1580 [ 6844.017256][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6844.017256][ T254] ip6_route_add+0x1c/0x140 [ 6844.017256][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6844.017256][ T254] addrconf_add_dev+0xe2/0x170 [ 6844.017256][ T254] inet6_addr_add+0x12f/0xa40 [ 6844.017256][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6844.017256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6844.017256][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.017256][ T254] netlink_unicast+0x449/0x710 [ 6844.017256][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.017256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.017256][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.017256][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.017256][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.017256][ T254] [ 6844.019480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.019480][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6844.019480][ T254] ipv6_find_idev+0x102/0x170 [ 6844.019480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6844.019480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6844.019480][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.019480][ T254] netlink_unicast+0x449/0x710 [ 6844.019480][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.019480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.019480][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.019480][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.019480][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.019480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6844.019480][ T254] [ 6844.021220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6844.021220][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6844.021220][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6844.021220][ T254] ipv6_find_idev+0x102/0x170 [ 6844.021220][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6844.021220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6844.021220][ T254] netlink_rcv_skb+0x130/0x360 [ 6844.021220][ T254] netlink_unicast+0x449/0x710 [ 6844.021220][ T254] netlink_sendmsg+0x723/0xbe0 [ 6844.021220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6844.021220][ T254] ___sys_sendmsg+0xee/0x170 [ 6844.021220][ T254] __sys_sendmsg+0xcd/0x170 [ 6844.021220][ T254] do_syscall_64+0xc6/0x1e0 [ 6844.021220][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6844.021220][ T254] [ 6854.047843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6854.048321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.048321][ T254] dst_init+0x84/0x4a0 [ 6854.048321][ T254] dst_alloc+0x97/0x150 [ 6854.048321][ T254] ip6_dst_alloc+0x23/0x90 [ 6854.048321][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6854.048321][ T254] ip6_pol_route+0x56f/0x840 [ 6854.048321][ T254] fib6_rule_lookup+0x334/0x630 [ 6854.048321][ T254] ip6_route_output_flags+0x259/0x480 [ 6854.048321][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6854.048321][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6854.048321][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.048321][ T254] netlink_unicast+0x449/0x710 [ 6854.048321][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.048321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.048321][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.048321][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.048321][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.048321][ T254] [ 6854.050539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.050539][ T254] netdev_get_by_index+0x5e/0x80 [ 6854.050539][ T254] fib6_nh_init+0x3d8/0x1580 [ 6854.050539][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6854.050539][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6854.050539][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6854.050539][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6854.050539][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6854.050539][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6854.050539][ T254] addrconf_dad_begin+0x310/0x670 [ 6854.050539][ T254] addrconf_dad_work+0x10b/0xab0 [ 6854.050539][ T254] process_one_work+0x84d/0x18a0 [ 6854.050539][ T254] worker_thread+0x587/0xd30 [ 6854.050539][ T254] kthread+0x28a/0x350 [ 6854.050539][ T254] ret_from_fork+0x31/0x70 [ 6854.050539][ T254] ret_from_fork_asm+0x1a/0x30 [ 6854.050539][ T254] [ 6854.052710][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.052710][ T254] netdev_get_by_index+0x5e/0x80 [ 6854.052710][ T254] fib6_nh_init+0x3d8/0x1580 [ 6854.052710][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6854.052710][ T254] ip6_route_add+0x1c/0x140 [ 6854.052710][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6854.052710][ T254] inet6_addr_add+0x4f8/0xa40 [ 6854.052710][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6854.052710][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6854.052710][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.052710][ T254] netlink_unicast+0x449/0x710 [ 6854.052710][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.052710][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.052710][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.052710][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.052710][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.052710][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6854.052710][ T254] [ 6854.054970][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.054970][ T254] netdev_get_by_index+0x5e/0x80 [ 6854.054970][ T254] fib6_nh_init+0x3d8/0x1580 [ 6854.054970][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6854.054970][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6854.054970][ T254] ipv6_add_addr+0x411/0x2000 [ 6854.054970][ T254] inet6_addr_add+0x30e/0xa40 [ 6854.054970][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6854.054970][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6854.054970][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.054970][ T254] netlink_unicast+0x449/0x710 [ 6854.054970][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.054970][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.054970][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.054970][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.054970][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.054970][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6854.054970][ T254] [ 6854.057256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.057256][ T254] netdev_get_by_index+0x5e/0x80 [ 6854.057256][ T254] fib6_nh_init+0x3d8/0x1580 [ 6854.057256][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6854.057256][ T254] ip6_route_add+0x1c/0x140 [ 6854.057256][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6854.057256][ T254] addrconf_add_dev+0xe2/0x170 [ 6854.057256][ T254] inet6_addr_add+0x12f/0xa40 [ 6854.057256][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6854.057256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6854.057256][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.057256][ T254] netlink_unicast+0x449/0x710 [ 6854.057256][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.057256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.057256][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.057256][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.057256][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.057256][ T254] [ 6854.059996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.059996][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6854.059996][ T254] ipv6_find_idev+0x102/0x170 [ 6854.059996][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6854.059996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6854.059996][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.059996][ T254] netlink_unicast+0x449/0x710 [ 6854.059996][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.059996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.059996][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.059996][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.059996][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.059996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6854.059996][ T254] [ 6854.061733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6854.061733][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6854.061733][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6854.061733][ T254] ipv6_find_idev+0x102/0x170 [ 6854.061733][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6854.061733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6854.061733][ T254] netlink_rcv_skb+0x130/0x360 [ 6854.061733][ T254] netlink_unicast+0x449/0x710 [ 6854.061733][ T254] netlink_sendmsg+0x723/0xbe0 [ 6854.061733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6854.061733][ T254] ___sys_sendmsg+0xee/0x170 [ 6854.061733][ T254] __sys_sendmsg+0xcd/0x170 [ 6854.061733][ T254] do_syscall_64+0xc6/0x1e0 [ 6854.061733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6854.061733][ T254] [ 6864.311846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6864.312334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.312334][ T254] dst_init+0x84/0x4a0 [ 6864.312334][ T254] dst_alloc+0x97/0x150 [ 6864.312334][ T254] ip6_dst_alloc+0x23/0x90 [ 6864.312334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6864.312334][ T254] ip6_pol_route+0x56f/0x840 [ 6864.312334][ T254] fib6_rule_lookup+0x334/0x630 [ 6864.312334][ T254] ip6_route_output_flags+0x259/0x480 [ 6864.312334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6864.312334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6864.312334][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.312334][ T254] netlink_unicast+0x449/0x710 [ 6864.312334][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.312334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.312334][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.312334][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.312334][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.312334][ T254] [ 6864.314552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.314552][ T254] netdev_get_by_index+0x5e/0x80 [ 6864.314552][ T254] fib6_nh_init+0x3d8/0x1580 [ 6864.314552][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6864.314552][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6864.314552][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6864.314552][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6864.314552][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6864.314552][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6864.314552][ T254] addrconf_dad_begin+0x310/0x670 [ 6864.314552][ T254] addrconf_dad_work+0x10b/0xab0 [ 6864.314552][ T254] process_one_work+0x84d/0x18a0 [ 6864.314552][ T254] worker_thread+0x587/0xd30 [ 6864.314552][ T254] kthread+0x28a/0x350 [ 6864.314552][ T254] ret_from_fork+0x31/0x70 [ 6864.314552][ T254] ret_from_fork_asm+0x1a/0x30 [ 6864.314552][ T254] [ 6864.316735][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.316735][ T254] netdev_get_by_index+0x5e/0x80 [ 6864.316735][ T254] fib6_nh_init+0x3d8/0x1580 [ 6864.316735][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6864.316735][ T254] ip6_route_add+0x1c/0x140 [ 6864.316735][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6864.316735][ T254] inet6_addr_add+0x4f8/0xa40 [ 6864.316735][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6864.316735][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6864.316735][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.316735][ T254] netlink_unicast+0x449/0x710 [ 6864.316735][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.316735][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.316735][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.316735][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.316735][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.316735][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6864.316735][ T254] [ 6864.318996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.318996][ T254] netdev_get_by_index+0x5e/0x80 [ 6864.318996][ T254] fib6_nh_init+0x3d8/0x1580 [ 6864.318996][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6864.318996][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6864.318996][ T254] ipv6_add_addr+0x411/0x2000 [ 6864.318996][ T254] inet6_addr_add+0x30e/0xa40 [ 6864.318996][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6864.318996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6864.318996][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.318996][ T254] netlink_unicast+0x449/0x710 [ 6864.318996][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.318996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.318996][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.318996][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.318996][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.318996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6864.318996][ T254] [ 6864.321254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.321254][ T254] netdev_get_by_index+0x5e/0x80 [ 6864.321254][ T254] fib6_nh_init+0x3d8/0x1580 [ 6864.321254][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6864.321254][ T254] ip6_route_add+0x1c/0x140 [ 6864.321254][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6864.321254][ T254] addrconf_add_dev+0xe2/0x170 [ 6864.321254][ T254] inet6_addr_add+0x12f/0xa40 [ 6864.321254][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6864.321254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6864.321254][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.321254][ T254] netlink_unicast+0x449/0x710 [ 6864.321254][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.321254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.321254][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.321254][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.321254][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.321254][ T254] [ 6864.323479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.323479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6864.323479][ T254] ipv6_find_idev+0x102/0x170 [ 6864.323479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6864.323479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6864.323479][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.323479][ T254] netlink_unicast+0x449/0x710 [ 6864.323479][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.323479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.323479][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.323479][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.323479][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.323479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6864.323479][ T254] [ 6864.325231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6864.325231][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6864.325231][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6864.325231][ T254] ipv6_find_idev+0x102/0x170 [ 6864.325231][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6864.325231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6864.325231][ T254] netlink_rcv_skb+0x130/0x360 [ 6864.325231][ T254] netlink_unicast+0x449/0x710 [ 6864.325231][ T254] netlink_sendmsg+0x723/0xbe0 [ 6864.325231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6864.325231][ T254] ___sys_sendmsg+0xee/0x170 [ 6864.325231][ T254] __sys_sendmsg+0xcd/0x170 [ 6864.325231][ T254] do_syscall_64+0xc6/0x1e0 [ 6864.325231][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6864.325231][ T254] [ 6874.575912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6874.576407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.576407][ T254] dst_init+0x84/0x4a0 [ 6874.576407][ T254] dst_alloc+0x97/0x150 [ 6874.576407][ T254] ip6_dst_alloc+0x23/0x90 [ 6874.576407][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6874.576407][ T254] ip6_pol_route+0x56f/0x840 [ 6874.576407][ T254] fib6_rule_lookup+0x334/0x630 [ 6874.576407][ T254] ip6_route_output_flags+0x259/0x480 [ 6874.576407][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6874.576407][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6874.576407][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.576407][ T254] netlink_unicast+0x449/0x710 [ 6874.576407][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.576407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.576407][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.576407][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.576407][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.576407][ T254] [ 6874.578620][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.578620][ T254] netdev_get_by_index+0x5e/0x80 [ 6874.578620][ T254] fib6_nh_init+0x3d8/0x1580 [ 6874.578620][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6874.578620][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6874.578620][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6874.578620][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6874.578620][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6874.578620][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6874.578620][ T254] addrconf_dad_begin+0x310/0x670 [ 6874.578620][ T254] addrconf_dad_work+0x10b/0xab0 [ 6874.578620][ T254] process_one_work+0x84d/0x18a0 [ 6874.578620][ T254] worker_thread+0x587/0xd30 [ 6874.578620][ T254] kthread+0x28a/0x350 [ 6874.578620][ T254] ret_from_fork+0x31/0x70 [ 6874.578620][ T254] ret_from_fork_asm+0x1a/0x30 [ 6874.578620][ T254] [ 6874.580796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.580796][ T254] netdev_get_by_index+0x5e/0x80 [ 6874.580796][ T254] fib6_nh_init+0x3d8/0x1580 [ 6874.580796][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6874.580796][ T254] ip6_route_add+0x1c/0x140 [ 6874.580796][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6874.580796][ T254] inet6_addr_add+0x4f8/0xa40 [ 6874.580796][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6874.580796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6874.580796][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.580796][ T254] netlink_unicast+0x449/0x710 [ 6874.580796][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.580796][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.580796][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.580796][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.580796][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.580796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6874.580796][ T254] [ 6874.583079][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.583079][ T254] netdev_get_by_index+0x5e/0x80 [ 6874.583079][ T254] fib6_nh_init+0x3d8/0x1580 [ 6874.583079][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6874.583079][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6874.583079][ T254] ipv6_add_addr+0x411/0x2000 [ 6874.583079][ T254] inet6_addr_add+0x30e/0xa40 [ 6874.583079][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6874.583079][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6874.583079][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.583079][ T254] netlink_unicast+0x449/0x710 [ 6874.583079][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.583079][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.583079][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.583079][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.583079][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.583079][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6874.583079][ T254] [ 6874.585340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.585340][ T254] netdev_get_by_index+0x5e/0x80 [ 6874.585340][ T254] fib6_nh_init+0x3d8/0x1580 [ 6874.585340][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6874.585340][ T254] ip6_route_add+0x1c/0x140 [ 6874.585340][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6874.585340][ T254] addrconf_add_dev+0xe2/0x170 [ 6874.585340][ T254] inet6_addr_add+0x12f/0xa40 [ 6874.585340][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6874.585340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6874.585340][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.585340][ T254] netlink_unicast+0x449/0x710 [ 6874.585340][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.585340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.585340][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.585340][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.585340][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.585340][ T254] [ 6874.587585][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.587585][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6874.587585][ T254] ipv6_find_idev+0x102/0x170 [ 6874.587585][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6874.587585][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6874.587585][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.587585][ T254] netlink_unicast+0x449/0x710 [ 6874.587585][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.587585][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.587585][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.587585][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.587585][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.587585][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6874.587585][ T254] [ 6874.589328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6874.589328][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6874.589328][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6874.589328][ T254] ipv6_find_idev+0x102/0x170 [ 6874.589328][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6874.589328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6874.589328][ T254] netlink_rcv_skb+0x130/0x360 [ 6874.589328][ T254] netlink_unicast+0x449/0x710 [ 6874.589328][ T254] netlink_sendmsg+0x723/0xbe0 [ 6874.589328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6874.589328][ T254] ___sys_sendmsg+0xee/0x170 [ 6874.589328][ T254] __sys_sendmsg+0xcd/0x170 [ 6874.589328][ T254] do_syscall_64+0xc6/0x1e0 [ 6874.589328][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6874.589328][ T254] [ 6884.839836][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6884.840326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.840326][ T254] dst_init+0x84/0x4a0 [ 6884.840326][ T254] dst_alloc+0x97/0x150 [ 6884.840326][ T254] ip6_dst_alloc+0x23/0x90 [ 6884.840326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6884.840326][ T254] ip6_pol_route+0x56f/0x840 [ 6884.840326][ T254] fib6_rule_lookup+0x334/0x630 [ 6884.840326][ T254] ip6_route_output_flags+0x259/0x480 [ 6884.840326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6884.840326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6884.840326][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.840326][ T254] netlink_unicast+0x449/0x710 [ 6884.840326][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.840326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.840326][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.840326][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.840326][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.840326][ T254] [ 6884.842551][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.842551][ T254] netdev_get_by_index+0x5e/0x80 [ 6884.842551][ T254] fib6_nh_init+0x3d8/0x1580 [ 6884.842551][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6884.842551][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6884.842551][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6884.842551][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6884.842551][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6884.842551][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6884.842551][ T254] addrconf_dad_begin+0x310/0x670 [ 6884.842551][ T254] addrconf_dad_work+0x10b/0xab0 [ 6884.842551][ T254] process_one_work+0x84d/0x18a0 [ 6884.842551][ T254] worker_thread+0x587/0xd30 [ 6884.842551][ T254] kthread+0x28a/0x350 [ 6884.842551][ T254] ret_from_fork+0x31/0x70 [ 6884.842551][ T254] ret_from_fork_asm+0x1a/0x30 [ 6884.842551][ T254] [ 6884.844718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.844718][ T254] netdev_get_by_index+0x5e/0x80 [ 6884.844718][ T254] fib6_nh_init+0x3d8/0x1580 [ 6884.844718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6884.844718][ T254] ip6_route_add+0x1c/0x140 [ 6884.844718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6884.844718][ T254] inet6_addr_add+0x4f8/0xa40 [ 6884.844718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6884.844718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6884.844718][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.844718][ T254] netlink_unicast+0x449/0x710 [ 6884.844718][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.844718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.844718][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.844718][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.844718][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.844718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6884.844718][ T254] [ 6884.846995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.846995][ T254] netdev_get_by_index+0x5e/0x80 [ 6884.846995][ T254] fib6_nh_init+0x3d8/0x1580 [ 6884.846995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6884.846995][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6884.846995][ T254] ipv6_add_addr+0x411/0x2000 [ 6884.846995][ T254] inet6_addr_add+0x30e/0xa40 [ 6884.846995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6884.846995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6884.846995][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.846995][ T254] netlink_unicast+0x449/0x710 [ 6884.846995][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.846995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.846995][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.846995][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.846995][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.846995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6884.846995][ T254] [ 6884.849266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.849266][ T254] netdev_get_by_index+0x5e/0x80 [ 6884.849266][ T254] fib6_nh_init+0x3d8/0x1580 [ 6884.849266][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6884.849266][ T254] ip6_route_add+0x1c/0x140 [ 6884.849266][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6884.849266][ T254] addrconf_add_dev+0xe2/0x170 [ 6884.849266][ T254] inet6_addr_add+0x12f/0xa40 [ 6884.849266][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6884.849266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6884.849266][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.849266][ T254] netlink_unicast+0x449/0x710 [ 6884.849266][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.849266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.849266][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.849266][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.849266][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.849266][ T254] [ 6884.851491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.851491][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6884.851491][ T254] ipv6_find_idev+0x102/0x170 [ 6884.851491][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6884.851491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6884.851491][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.851491][ T254] netlink_unicast+0x449/0x710 [ 6884.851491][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.851491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.851491][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.851491][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.851491][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.851491][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6884.851491][ T254] [ 6884.853237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6884.853237][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6884.853237][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6884.853237][ T254] ipv6_find_idev+0x102/0x170 [ 6884.853237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6884.853237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6884.853237][ T254] netlink_rcv_skb+0x130/0x360 [ 6884.853237][ T254] netlink_unicast+0x449/0x710 [ 6884.853237][ T254] netlink_sendmsg+0x723/0xbe0 [ 6884.853237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6884.853237][ T254] ___sys_sendmsg+0xee/0x170 [ 6884.853237][ T254] __sys_sendmsg+0xcd/0x170 [ 6884.853237][ T254] do_syscall_64+0xc6/0x1e0 [ 6884.853237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6884.853237][ T254] [ 6895.103848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6895.104337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.104337][ T254] dst_init+0x84/0x4a0 [ 6895.104337][ T254] dst_alloc+0x97/0x150 [ 6895.104337][ T254] ip6_dst_alloc+0x23/0x90 [ 6895.104337][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6895.104337][ T254] ip6_pol_route+0x56f/0x840 [ 6895.104337][ T254] fib6_rule_lookup+0x334/0x630 [ 6895.104337][ T254] ip6_route_output_flags+0x259/0x480 [ 6895.104337][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6895.104337][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6895.104337][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.104337][ T254] netlink_unicast+0x449/0x710 [ 6895.104337][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.104337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.104337][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.104337][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.104337][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.104337][ T254] [ 6895.106566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.106566][ T254] netdev_get_by_index+0x5e/0x80 [ 6895.106566][ T254] fib6_nh_init+0x3d8/0x1580 [ 6895.106566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6895.106566][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6895.106566][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6895.106566][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6895.106566][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6895.106566][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6895.106566][ T254] addrconf_dad_begin+0x310/0x670 [ 6895.106566][ T254] addrconf_dad_work+0x10b/0xab0 [ 6895.106566][ T254] process_one_work+0x84d/0x18a0 [ 6895.106566][ T254] worker_thread+0x587/0xd30 [ 6895.106566][ T254] kthread+0x28a/0x350 [ 6895.106566][ T254] ret_from_fork+0x31/0x70 [ 6895.106566][ T254] ret_from_fork_asm+0x1a/0x30 [ 6895.106566][ T254] [ 6895.108748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.108748][ T254] netdev_get_by_index+0x5e/0x80 [ 6895.108748][ T254] fib6_nh_init+0x3d8/0x1580 [ 6895.108748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6895.108748][ T254] ip6_route_add+0x1c/0x140 [ 6895.108748][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6895.108748][ T254] inet6_addr_add+0x4f8/0xa40 [ 6895.108748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6895.108748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6895.108748][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.108748][ T254] netlink_unicast+0x449/0x710 [ 6895.108748][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.108748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.108748][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.108748][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.108748][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.108748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6895.108748][ T254] [ 6895.111008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.111008][ T254] netdev_get_by_index+0x5e/0x80 [ 6895.111008][ T254] fib6_nh_init+0x3d8/0x1580 [ 6895.111008][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6895.111008][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6895.111008][ T254] ipv6_add_addr+0x411/0x2000 [ 6895.111008][ T254] inet6_addr_add+0x30e/0xa40 [ 6895.111008][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6895.111008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6895.111008][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.111008][ T254] netlink_unicast+0x449/0x710 [ 6895.111008][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.111008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.111008][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.111008][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.111008][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.111008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6895.111008][ T254] [ 6895.113265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.113265][ T254] netdev_get_by_index+0x5e/0x80 [ 6895.113265][ T254] fib6_nh_init+0x3d8/0x1580 [ 6895.113265][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6895.113265][ T254] ip6_route_add+0x1c/0x140 [ 6895.113265][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6895.113265][ T254] addrconf_add_dev+0xe2/0x170 [ 6895.113265][ T254] inet6_addr_add+0x12f/0xa40 [ 6895.113265][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6895.113265][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6895.113265][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.113265][ T254] netlink_unicast+0x449/0x710 [ 6895.113265][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.113265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.113265][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.113265][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.113265][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.113265][ T254] [ 6895.115492][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.115492][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6895.115492][ T254] ipv6_find_idev+0x102/0x170 [ 6895.115492][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6895.115492][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6895.115492][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.115492][ T254] netlink_unicast+0x449/0x710 [ 6895.115492][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.115492][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.115492][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.115492][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.115492][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.115492][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6895.115492][ T254] [ 6895.117239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6895.117239][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6895.117239][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6895.117239][ T254] ipv6_find_idev+0x102/0x170 [ 6895.117239][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6895.117239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6895.117239][ T254] netlink_rcv_skb+0x130/0x360 [ 6895.117239][ T254] netlink_unicast+0x449/0x710 [ 6895.117239][ T254] netlink_sendmsg+0x723/0xbe0 [ 6895.117239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6895.117239][ T254] ___sys_sendmsg+0xee/0x170 [ 6895.117239][ T254] __sys_sendmsg+0xcd/0x170 [ 6895.117239][ T254] do_syscall_64+0xc6/0x1e0 [ 6895.117239][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6895.117239][ T254] [ 6905.143847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6905.144332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.144332][ T254] dst_init+0x84/0x4a0 [ 6905.144332][ T254] dst_alloc+0x97/0x150 [ 6905.144332][ T254] ip6_dst_alloc+0x23/0x90 [ 6905.144332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6905.144332][ T254] ip6_pol_route+0x56f/0x840 [ 6905.144332][ T254] fib6_rule_lookup+0x334/0x630 [ 6905.144332][ T254] ip6_route_output_flags+0x259/0x480 [ 6905.144332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6905.144332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6905.144332][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.144332][ T254] netlink_unicast+0x449/0x710 [ 6905.144332][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.144332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.144332][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.144332][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.144332][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.144332][ T254] [ 6905.146556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.146556][ T254] netdev_get_by_index+0x5e/0x80 [ 6905.146556][ T254] fib6_nh_init+0x3d8/0x1580 [ 6905.146556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6905.146556][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6905.146556][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6905.146556][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6905.146556][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6905.146556][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6905.146556][ T254] addrconf_dad_begin+0x310/0x670 [ 6905.146556][ T254] addrconf_dad_work+0x10b/0xab0 [ 6905.146556][ T254] process_one_work+0x84d/0x18a0 [ 6905.146556][ T254] worker_thread+0x587/0xd30 [ 6905.146556][ T254] kthread+0x28a/0x350 [ 6905.146556][ T254] ret_from_fork+0x31/0x70 [ 6905.146556][ T254] ret_from_fork_asm+0x1a/0x30 [ 6905.146556][ T254] [ 6905.148714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.148714][ T254] netdev_get_by_index+0x5e/0x80 [ 6905.148714][ T254] fib6_nh_init+0x3d8/0x1580 [ 6905.148714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6905.148714][ T254] ip6_route_add+0x1c/0x140 [ 6905.148714][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6905.148714][ T254] inet6_addr_add+0x4f8/0xa40 [ 6905.148714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6905.148714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6905.148714][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.148714][ T254] netlink_unicast+0x449/0x710 [ 6905.148714][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.148714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.148714][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.148714][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.148714][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.148714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6905.148714][ T254] [ 6905.150973][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.150973][ T254] netdev_get_by_index+0x5e/0x80 [ 6905.150973][ T254] fib6_nh_init+0x3d8/0x1580 [ 6905.150973][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6905.150973][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6905.150973][ T254] ipv6_add_addr+0x411/0x2000 [ 6905.150973][ T254] inet6_addr_add+0x30e/0xa40 [ 6905.150973][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6905.150973][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6905.150973][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.150973][ T254] netlink_unicast+0x449/0x710 [ 6905.150973][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.150973][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.150973][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.150973][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.150973][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.150973][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6905.150973][ T254] [ 6905.153607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.153607][ T254] netdev_get_by_index+0x5e/0x80 [ 6905.153607][ T254] fib6_nh_init+0x3d8/0x1580 [ 6905.153607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6905.153607][ T254] ip6_route_add+0x1c/0x140 [ 6905.153607][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6905.153607][ T254] addrconf_add_dev+0xe2/0x170 [ 6905.153607][ T254] inet6_addr_add+0x12f/0xa40 [ 6905.153607][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6905.153607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6905.153607][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.153607][ T254] netlink_unicast+0x449/0x710 [ 6905.153607][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.153607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.153607][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.153607][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.153607][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.153607][ T254] [ 6905.155830][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.155830][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6905.155830][ T254] ipv6_find_idev+0x102/0x170 [ 6905.155830][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6905.155830][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6905.155830][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.155830][ T254] netlink_unicast+0x449/0x710 [ 6905.155830][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.155830][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.155830][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.155830][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.155830][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.155830][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6905.155830][ T254] [ 6905.157571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6905.157571][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6905.157571][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6905.157571][ T254] ipv6_find_idev+0x102/0x170 [ 6905.157571][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6905.157571][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6905.157571][ T254] netlink_rcv_skb+0x130/0x360 [ 6905.157571][ T254] netlink_unicast+0x449/0x710 [ 6905.157571][ T254] netlink_sendmsg+0x723/0xbe0 [ 6905.157571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6905.157571][ T254] ___sys_sendmsg+0xee/0x170 [ 6905.157571][ T254] __sys_sendmsg+0xcd/0x170 [ 6905.157571][ T254] do_syscall_64+0xc6/0x1e0 [ 6905.157571][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6905.157571][ T254] [ 6915.351844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6915.352331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.352331][ T254] dst_init+0x84/0x4a0 [ 6915.352331][ T254] dst_alloc+0x97/0x150 [ 6915.352331][ T254] ip6_dst_alloc+0x23/0x90 [ 6915.352331][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6915.352331][ T254] ip6_pol_route+0x56f/0x840 [ 6915.352331][ T254] fib6_rule_lookup+0x334/0x630 [ 6915.352331][ T254] ip6_route_output_flags+0x259/0x480 [ 6915.352331][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6915.352331][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6915.352331][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.352331][ T254] netlink_unicast+0x449/0x710 [ 6915.352331][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.352331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.352331][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.352331][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.352331][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.352331][ T254] [ 6915.354541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.354541][ T254] netdev_get_by_index+0x5e/0x80 [ 6915.354541][ T254] fib6_nh_init+0x3d8/0x1580 [ 6915.354541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6915.354541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6915.354541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6915.354541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6915.354541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6915.354541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6915.354541][ T254] addrconf_dad_begin+0x310/0x670 [ 6915.354541][ T254] addrconf_dad_work+0x10b/0xab0 [ 6915.354541][ T254] process_one_work+0x84d/0x18a0 [ 6915.354541][ T254] worker_thread+0x587/0xd30 [ 6915.354541][ T254] kthread+0x28a/0x350 [ 6915.354541][ T254] ret_from_fork+0x31/0x70 [ 6915.354541][ T254] ret_from_fork_asm+0x1a/0x30 [ 6915.354541][ T254] [ 6915.356706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.356706][ T254] netdev_get_by_index+0x5e/0x80 [ 6915.356706][ T254] fib6_nh_init+0x3d8/0x1580 [ 6915.356706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6915.356706][ T254] ip6_route_add+0x1c/0x140 [ 6915.356706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6915.356706][ T254] inet6_addr_add+0x4f8/0xa40 [ 6915.356706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6915.356706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6915.356706][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.356706][ T254] netlink_unicast+0x449/0x710 [ 6915.356706][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.356706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.356706][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.356706][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.356706][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.356706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6915.356706][ T254] [ 6915.358961][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.358961][ T254] netdev_get_by_index+0x5e/0x80 [ 6915.358961][ T254] fib6_nh_init+0x3d8/0x1580 [ 6915.358961][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6915.358961][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6915.358961][ T254] ipv6_add_addr+0x411/0x2000 [ 6915.358961][ T254] inet6_addr_add+0x30e/0xa40 [ 6915.358961][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6915.358961][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6915.358961][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.358961][ T254] netlink_unicast+0x449/0x710 [ 6915.358961][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.358961][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.358961][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.358961][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.358961][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.358961][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6915.358961][ T254] [ 6915.361216][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.361216][ T254] netdev_get_by_index+0x5e/0x80 [ 6915.361216][ T254] fib6_nh_init+0x3d8/0x1580 [ 6915.361216][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6915.361216][ T254] ip6_route_add+0x1c/0x140 [ 6915.361216][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6915.361216][ T254] addrconf_add_dev+0xe2/0x170 [ 6915.361216][ T254] inet6_addr_add+0x12f/0xa40 [ 6915.361216][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6915.361216][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6915.361216][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.361216][ T254] netlink_unicast+0x449/0x710 [ 6915.361216][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.361216][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.361216][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.361216][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.361216][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.361216][ T254] [ 6915.363430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.363430][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6915.363430][ T254] ipv6_find_idev+0x102/0x170 [ 6915.363430][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6915.363430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6915.363430][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.363430][ T254] netlink_unicast+0x449/0x710 [ 6915.363430][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.363430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.363430][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.363430][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.363430][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.363430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6915.363430][ T254] [ 6915.365175][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6915.365175][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6915.365175][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6915.365175][ T254] ipv6_find_idev+0x102/0x170 [ 6915.365175][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6915.365175][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6915.365175][ T254] netlink_rcv_skb+0x130/0x360 [ 6915.365175][ T254] netlink_unicast+0x449/0x710 [ 6915.365175][ T254] netlink_sendmsg+0x723/0xbe0 [ 6915.365175][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6915.365175][ T254] ___sys_sendmsg+0xee/0x170 [ 6915.365175][ T254] __sys_sendmsg+0xcd/0x170 [ 6915.365175][ T254] do_syscall_64+0xc6/0x1e0 [ 6915.365175][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6915.365175][ T254] [ 6925.607855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6925.608337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.608337][ T254] dst_init+0x84/0x4a0 [ 6925.608337][ T254] dst_alloc+0x97/0x150 [ 6925.608337][ T254] ip6_dst_alloc+0x23/0x90 [ 6925.608337][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6925.608337][ T254] ip6_pol_route+0x56f/0x840 [ 6925.608337][ T254] fib6_rule_lookup+0x334/0x630 [ 6925.608337][ T254] ip6_route_output_flags+0x259/0x480 [ 6925.608337][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6925.608337][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6925.608337][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.608337][ T254] netlink_unicast+0x449/0x710 [ 6925.608337][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.608337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.608337][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.608337][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.608337][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.608337][ T254] [ 6925.610555][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.610555][ T254] netdev_get_by_index+0x5e/0x80 [ 6925.610555][ T254] fib6_nh_init+0x3d8/0x1580 [ 6925.610555][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6925.610555][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6925.610555][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6925.610555][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6925.610555][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6925.610555][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6925.610555][ T254] addrconf_dad_begin+0x310/0x670 [ 6925.610555][ T254] addrconf_dad_work+0x10b/0xab0 [ 6925.610555][ T254] process_one_work+0x84d/0x18a0 [ 6925.610555][ T254] worker_thread+0x587/0xd30 [ 6925.610555][ T254] kthread+0x28a/0x350 [ 6925.610555][ T254] ret_from_fork+0x31/0x70 [ 6925.610555][ T254] ret_from_fork_asm+0x1a/0x30 [ 6925.610555][ T254] [ 6925.612725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.612725][ T254] netdev_get_by_index+0x5e/0x80 [ 6925.612725][ T254] fib6_nh_init+0x3d8/0x1580 [ 6925.612725][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6925.612725][ T254] ip6_route_add+0x1c/0x140 [ 6925.612725][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6925.612725][ T254] inet6_addr_add+0x4f8/0xa40 [ 6925.612725][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6925.612725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6925.612725][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.612725][ T254] netlink_unicast+0x449/0x710 [ 6925.612725][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.612725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.612725][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.612725][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.612725][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.612725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6925.612725][ T254] [ 6925.614994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.614994][ T254] netdev_get_by_index+0x5e/0x80 [ 6925.614994][ T254] fib6_nh_init+0x3d8/0x1580 [ 6925.614994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6925.614994][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6925.614994][ T254] ipv6_add_addr+0x411/0x2000 [ 6925.614994][ T254] inet6_addr_add+0x30e/0xa40 [ 6925.614994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6925.614994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6925.614994][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.614994][ T254] netlink_unicast+0x449/0x710 [ 6925.614994][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.614994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.614994][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.614994][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.614994][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.614994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6925.614994][ T254] [ 6925.617271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.617271][ T254] netdev_get_by_index+0x5e/0x80 [ 6925.617271][ T254] fib6_nh_init+0x3d8/0x1580 [ 6925.617271][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6925.617271][ T254] ip6_route_add+0x1c/0x140 [ 6925.617271][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6925.617271][ T254] addrconf_add_dev+0xe2/0x170 [ 6925.617271][ T254] inet6_addr_add+0x12f/0xa40 [ 6925.617271][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6925.617271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6925.617271][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.617271][ T254] netlink_unicast+0x449/0x710 [ 6925.617271][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.617271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.617271][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.617271][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.617271][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.617271][ T254] [ 6925.619486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.619486][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6925.619486][ T254] ipv6_find_idev+0x102/0x170 [ 6925.619486][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6925.619486][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6925.619486][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.619486][ T254] netlink_unicast+0x449/0x710 [ 6925.619486][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.619486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.619486][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.619486][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.619486][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.619486][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6925.619486][ T254] [ 6925.621244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6925.621244][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6925.621244][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6925.621244][ T254] ipv6_find_idev+0x102/0x170 [ 6925.621244][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6925.621244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6925.621244][ T254] netlink_rcv_skb+0x130/0x360 [ 6925.621244][ T254] netlink_unicast+0x449/0x710 [ 6925.621244][ T254] netlink_sendmsg+0x723/0xbe0 [ 6925.621244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6925.621244][ T254] ___sys_sendmsg+0xee/0x170 [ 6925.621244][ T254] __sys_sendmsg+0xcd/0x170 [ 6925.621244][ T254] do_syscall_64+0xc6/0x1e0 [ 6925.621244][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6925.621244][ T254] [ 6935.863851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6935.864367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.864367][ T254] dst_init+0x84/0x4a0 [ 6935.864367][ T254] dst_alloc+0x97/0x150 [ 6935.864367][ T254] ip6_dst_alloc+0x23/0x90 [ 6935.864367][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6935.864367][ T254] ip6_pol_route+0x56f/0x840 [ 6935.864367][ T254] fib6_rule_lookup+0x334/0x630 [ 6935.864367][ T254] ip6_route_output_flags+0x259/0x480 [ 6935.864367][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6935.864367][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6935.864367][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.864367][ T254] netlink_unicast+0x449/0x710 [ 6935.864367][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.864367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.864367][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.864367][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.864367][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.864367][ T254] [ 6935.866565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.866565][ T254] netdev_get_by_index+0x5e/0x80 [ 6935.866565][ T254] fib6_nh_init+0x3d8/0x1580 [ 6935.866565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6935.866565][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6935.866565][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6935.866565][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6935.866565][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6935.866565][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6935.866565][ T254] addrconf_dad_begin+0x310/0x670 [ 6935.866565][ T254] addrconf_dad_work+0x10b/0xab0 [ 6935.866565][ T254] process_one_work+0x84d/0x18a0 [ 6935.866565][ T254] worker_thread+0x587/0xd30 [ 6935.866565][ T254] kthread+0x28a/0x350 [ 6935.866565][ T254] ret_from_fork+0x31/0x70 [ 6935.866565][ T254] ret_from_fork_asm+0x1a/0x30 [ 6935.866565][ T254] [ 6935.868713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.868713][ T254] netdev_get_by_index+0x5e/0x80 [ 6935.868713][ T254] fib6_nh_init+0x3d8/0x1580 [ 6935.868713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6935.868713][ T254] ip6_route_add+0x1c/0x140 [ 6935.868713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6935.868713][ T254] inet6_addr_add+0x4f8/0xa40 [ 6935.868713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6935.868713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6935.868713][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.868713][ T254] netlink_unicast+0x449/0x710 [ 6935.868713][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.868713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.868713][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.868713][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.868713][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.868713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6935.868713][ T254] [ 6935.870949][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.870949][ T254] netdev_get_by_index+0x5e/0x80 [ 6935.870949][ T254] fib6_nh_init+0x3d8/0x1580 [ 6935.870949][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6935.870949][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6935.870949][ T254] ipv6_add_addr+0x411/0x2000 [ 6935.870949][ T254] inet6_addr_add+0x30e/0xa40 [ 6935.870949][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6935.870949][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6935.870949][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.870949][ T254] netlink_unicast+0x449/0x710 [ 6935.870949][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.870949][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.870949][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.870949][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.870949][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.870949][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6935.870949][ T254] [ 6935.873184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.873184][ T254] netdev_get_by_index+0x5e/0x80 [ 6935.873184][ T254] fib6_nh_init+0x3d8/0x1580 [ 6935.873184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6935.873184][ T254] ip6_route_add+0x1c/0x140 [ 6935.873184][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6935.873184][ T254] addrconf_add_dev+0xe2/0x170 [ 6935.873184][ T254] inet6_addr_add+0x12f/0xa40 [ 6935.873184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6935.873184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6935.873184][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.873184][ T254] netlink_unicast+0x449/0x710 [ 6935.873184][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.873184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.873184][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.873184][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.873184][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.873184][ T254] [ 6935.875382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.875382][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6935.875382][ T254] ipv6_find_idev+0x102/0x170 [ 6935.875382][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6935.875382][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6935.875382][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.875382][ T254] netlink_unicast+0x449/0x710 [ 6935.875382][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.875382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.875382][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.875382][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.875382][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.875382][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6935.875382][ T254] [ 6935.877101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6935.877101][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6935.877101][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6935.877101][ T254] ipv6_find_idev+0x102/0x170 [ 6935.877101][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6935.877101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6935.877101][ T254] netlink_rcv_skb+0x130/0x360 [ 6935.877101][ T254] netlink_unicast+0x449/0x710 [ 6935.877101][ T254] netlink_sendmsg+0x723/0xbe0 [ 6935.877101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6935.877101][ T254] ___sys_sendmsg+0xee/0x170 [ 6935.877101][ T254] __sys_sendmsg+0xcd/0x170 [ 6935.877101][ T254] do_syscall_64+0xc6/0x1e0 [ 6935.877101][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6935.877101][ T254] [ 6946.127840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6946.128312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.128312][ T254] dst_init+0x84/0x4a0 [ 6946.128312][ T254] dst_alloc+0x97/0x150 [ 6946.128312][ T254] ip6_dst_alloc+0x23/0x90 [ 6946.128312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6946.128312][ T254] ip6_pol_route+0x56f/0x840 [ 6946.128312][ T254] fib6_rule_lookup+0x334/0x630 [ 6946.128312][ T254] ip6_route_output_flags+0x259/0x480 [ 6946.128312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6946.128312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6946.128312][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.128312][ T254] netlink_unicast+0x449/0x710 [ 6946.128312][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.128312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.128312][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.128312][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.128312][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.128312][ T254] [ 6946.130503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.130503][ T254] netdev_get_by_index+0x5e/0x80 [ 6946.130503][ T254] fib6_nh_init+0x3d8/0x1580 [ 6946.130503][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6946.130503][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6946.130503][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6946.130503][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6946.130503][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6946.130503][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6946.130503][ T254] addrconf_dad_begin+0x310/0x670 [ 6946.130503][ T254] addrconf_dad_work+0x10b/0xab0 [ 6946.130503][ T254] process_one_work+0x84d/0x18a0 [ 6946.130503][ T254] worker_thread+0x587/0xd30 [ 6946.130503][ T254] kthread+0x28a/0x350 [ 6946.130503][ T254] ret_from_fork+0x31/0x70 [ 6946.130503][ T254] ret_from_fork_asm+0x1a/0x30 [ 6946.130503][ T254] [ 6946.132642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.132642][ T254] netdev_get_by_index+0x5e/0x80 [ 6946.132642][ T254] fib6_nh_init+0x3d8/0x1580 [ 6946.132642][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6946.132642][ T254] ip6_route_add+0x1c/0x140 [ 6946.132642][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6946.132642][ T254] inet6_addr_add+0x4f8/0xa40 [ 6946.132642][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6946.132642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6946.132642][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.132642][ T254] netlink_unicast+0x449/0x710 [ 6946.132642][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.132642][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.132642][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.132642][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.132642][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.132642][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6946.132642][ T254] [ 6946.134878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.134878][ T254] netdev_get_by_index+0x5e/0x80 [ 6946.134878][ T254] fib6_nh_init+0x3d8/0x1580 [ 6946.134878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6946.134878][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6946.134878][ T254] ipv6_add_addr+0x411/0x2000 [ 6946.134878][ T254] inet6_addr_add+0x30e/0xa40 [ 6946.134878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6946.134878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6946.134878][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.134878][ T254] netlink_unicast+0x449/0x710 [ 6946.134878][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.134878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.134878][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.134878][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.134878][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.134878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6946.134878][ T254] [ 6946.137113][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.137113][ T254] netdev_get_by_index+0x5e/0x80 [ 6946.137113][ T254] fib6_nh_init+0x3d8/0x1580 [ 6946.137113][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6946.137113][ T254] ip6_route_add+0x1c/0x140 [ 6946.137113][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6946.137113][ T254] addrconf_add_dev+0xe2/0x170 [ 6946.137113][ T254] inet6_addr_add+0x12f/0xa40 [ 6946.137113][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6946.137113][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6946.137113][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.137113][ T254] netlink_unicast+0x449/0x710 [ 6946.137113][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.137113][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.137113][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.137113][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.137113][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.137113][ T254] [ 6946.139316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.139316][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6946.139316][ T254] ipv6_find_idev+0x102/0x170 [ 6946.139316][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6946.139316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6946.139316][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.139316][ T254] netlink_unicast+0x449/0x710 [ 6946.139316][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.139316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.139316][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.139316][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.139316][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.139316][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6946.139316][ T254] [ 6946.141050][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6946.141050][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6946.141050][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6946.141050][ T254] ipv6_find_idev+0x102/0x170 [ 6946.141050][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6946.141050][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6946.141050][ T254] netlink_rcv_skb+0x130/0x360 [ 6946.141050][ T254] netlink_unicast+0x449/0x710 [ 6946.141050][ T254] netlink_sendmsg+0x723/0xbe0 [ 6946.141050][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6946.141050][ T254] ___sys_sendmsg+0xee/0x170 [ 6946.141050][ T254] __sys_sendmsg+0xcd/0x170 [ 6946.141050][ T254] do_syscall_64+0xc6/0x1e0 [ 6946.141050][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6946.141050][ T254] [ 6956.383857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6956.384329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.384329][ T254] dst_init+0x84/0x4a0 [ 6956.384329][ T254] dst_alloc+0x97/0x150 [ 6956.384329][ T254] ip6_dst_alloc+0x23/0x90 [ 6956.384329][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6956.384329][ T254] ip6_pol_route+0x56f/0x840 [ 6956.384329][ T254] fib6_rule_lookup+0x334/0x630 [ 6956.384329][ T254] ip6_route_output_flags+0x259/0x480 [ 6956.384329][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6956.384329][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6956.384329][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.384329][ T254] netlink_unicast+0x449/0x710 [ 6956.384329][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.384329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.384329][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.384329][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.384329][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.384329][ T254] [ 6956.386539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.386539][ T254] netdev_get_by_index+0x5e/0x80 [ 6956.386539][ T254] fib6_nh_init+0x3d8/0x1580 [ 6956.386539][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6956.386539][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6956.386539][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6956.386539][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6956.386539][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6956.386539][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6956.386539][ T254] addrconf_dad_begin+0x310/0x670 [ 6956.386539][ T254] addrconf_dad_work+0x10b/0xab0 [ 6956.386539][ T254] process_one_work+0x84d/0x18a0 [ 6956.386539][ T254] worker_thread+0x587/0xd30 [ 6956.386539][ T254] kthread+0x28a/0x350 [ 6956.386539][ T254] ret_from_fork+0x31/0x70 [ 6956.386539][ T254] ret_from_fork_asm+0x1a/0x30 [ 6956.386539][ T254] [ 6956.388674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.388674][ T254] netdev_get_by_index+0x5e/0x80 [ 6956.388674][ T254] fib6_nh_init+0x3d8/0x1580 [ 6956.388674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6956.388674][ T254] ip6_route_add+0x1c/0x140 [ 6956.388674][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6956.388674][ T254] inet6_addr_add+0x4f8/0xa40 [ 6956.388674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6956.388674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6956.388674][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.388674][ T254] netlink_unicast+0x449/0x710 [ 6956.388674][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.388674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.388674][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.388674][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.388674][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.388674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6956.388674][ T254] [ 6956.390906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.390906][ T254] netdev_get_by_index+0x5e/0x80 [ 6956.390906][ T254] fib6_nh_init+0x3d8/0x1580 [ 6956.390906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6956.390906][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6956.390906][ T254] ipv6_add_addr+0x411/0x2000 [ 6956.390906][ T254] inet6_addr_add+0x30e/0xa40 [ 6956.390906][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6956.390906][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6956.390906][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.390906][ T254] netlink_unicast+0x449/0x710 [ 6956.390906][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.390906][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.390906][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.390906][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.390906][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.390906][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6956.390906][ T254] [ 6956.393144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.393144][ T254] netdev_get_by_index+0x5e/0x80 [ 6956.393144][ T254] fib6_nh_init+0x3d8/0x1580 [ 6956.393144][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6956.393144][ T254] ip6_route_add+0x1c/0x140 [ 6956.393144][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6956.393144][ T254] addrconf_add_dev+0xe2/0x170 [ 6956.393144][ T254] inet6_addr_add+0x12f/0xa40 [ 6956.393144][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6956.393144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6956.393144][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.393144][ T254] netlink_unicast+0x449/0x710 [ 6956.393144][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.393144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.393144][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.393144][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.393144][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.393144][ T254] [ 6956.395351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.395351][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6956.395351][ T254] ipv6_find_idev+0x102/0x170 [ 6956.395351][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6956.395351][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6956.395351][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.395351][ T254] netlink_unicast+0x449/0x710 [ 6956.395351][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.395351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.395351][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.395351][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.395351][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.395351][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6956.395351][ T254] [ 6956.397065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6956.397065][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6956.397065][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6956.397065][ T254] ipv6_find_idev+0x102/0x170 [ 6956.397065][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6956.397065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6956.397065][ T254] netlink_rcv_skb+0x130/0x360 [ 6956.397065][ T254] netlink_unicast+0x449/0x710 [ 6956.397065][ T254] netlink_sendmsg+0x723/0xbe0 [ 6956.397065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6956.397065][ T254] ___sys_sendmsg+0xee/0x170 [ 6956.397065][ T254] __sys_sendmsg+0xcd/0x170 [ 6956.397065][ T254] do_syscall_64+0xc6/0x1e0 [ 6956.397065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6956.397065][ T254] [ 6966.639856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6966.640334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.640334][ T254] dst_init+0x84/0x4a0 [ 6966.640334][ T254] dst_alloc+0x97/0x150 [ 6966.640334][ T254] ip6_dst_alloc+0x23/0x90 [ 6966.640334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6966.640334][ T254] ip6_pol_route+0x56f/0x840 [ 6966.640334][ T254] fib6_rule_lookup+0x334/0x630 [ 6966.640334][ T254] ip6_route_output_flags+0x259/0x480 [ 6966.640334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6966.640334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6966.640334][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.640334][ T254] netlink_unicast+0x449/0x710 [ 6966.640334][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.640334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.640334][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.640334][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.640334][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.640334][ T254] [ 6966.642517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.642517][ T254] netdev_get_by_index+0x5e/0x80 [ 6966.642517][ T254] fib6_nh_init+0x3d8/0x1580 [ 6966.642517][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6966.642517][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6966.642517][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6966.642517][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6966.642517][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6966.642517][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6966.642517][ T254] addrconf_dad_begin+0x310/0x670 [ 6966.642517][ T254] addrconf_dad_work+0x10b/0xab0 [ 6966.642517][ T254] process_one_work+0x84d/0x18a0 [ 6966.642517][ T254] worker_thread+0x587/0xd30 [ 6966.642517][ T254] kthread+0x28a/0x350 [ 6966.642517][ T254] ret_from_fork+0x31/0x70 [ 6966.642517][ T254] ret_from_fork_asm+0x1a/0x30 [ 6966.642517][ T254] [ 6966.644654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.644654][ T254] netdev_get_by_index+0x5e/0x80 [ 6966.644654][ T254] fib6_nh_init+0x3d8/0x1580 [ 6966.644654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6966.644654][ T254] ip6_route_add+0x1c/0x140 [ 6966.644654][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6966.644654][ T254] inet6_addr_add+0x4f8/0xa40 [ 6966.644654][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6966.644654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6966.644654][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.644654][ T254] netlink_unicast+0x449/0x710 [ 6966.644654][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.644654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.644654][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.644654][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.644654][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.644654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6966.644654][ T254] [ 6966.646896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.646896][ T254] netdev_get_by_index+0x5e/0x80 [ 6966.646896][ T254] fib6_nh_init+0x3d8/0x1580 [ 6966.646896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6966.646896][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6966.646896][ T254] ipv6_add_addr+0x411/0x2000 [ 6966.646896][ T254] inet6_addr_add+0x30e/0xa40 [ 6966.646896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6966.646896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6966.646896][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.646896][ T254] netlink_unicast+0x449/0x710 [ 6966.646896][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.646896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.646896][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.646896][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.646896][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.646896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6966.646896][ T254] [ 6966.649154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.649154][ T254] netdev_get_by_index+0x5e/0x80 [ 6966.649154][ T254] fib6_nh_init+0x3d8/0x1580 [ 6966.649154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6966.649154][ T254] ip6_route_add+0x1c/0x140 [ 6966.649154][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6966.649154][ T254] addrconf_add_dev+0xe2/0x170 [ 6966.649154][ T254] inet6_addr_add+0x12f/0xa40 [ 6966.649154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6966.649154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6966.649154][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.649154][ T254] netlink_unicast+0x449/0x710 [ 6966.649154][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.649154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.649154][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.649154][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.649154][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.649154][ T254] [ 6966.651344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.651344][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6966.651344][ T254] ipv6_find_idev+0x102/0x170 [ 6966.651344][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6966.651344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6966.651344][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.651344][ T254] netlink_unicast+0x449/0x710 [ 6966.651344][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.651344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.651344][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.651344][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.651344][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.651344][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6966.651344][ T254] [ 6966.653062][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6966.653062][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6966.653062][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6966.653062][ T254] ipv6_find_idev+0x102/0x170 [ 6966.653062][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6966.653062][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6966.653062][ T254] netlink_rcv_skb+0x130/0x360 [ 6966.653062][ T254] netlink_unicast+0x449/0x710 [ 6966.653062][ T254] netlink_sendmsg+0x723/0xbe0 [ 6966.653062][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6966.653062][ T254] ___sys_sendmsg+0xee/0x170 [ 6966.653062][ T254] __sys_sendmsg+0xcd/0x170 [ 6966.653062][ T254] do_syscall_64+0xc6/0x1e0 [ 6966.653062][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6966.653062][ T254] [ 6976.895842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6976.896321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.896321][ T254] dst_init+0x84/0x4a0 [ 6976.896321][ T254] dst_alloc+0x97/0x150 [ 6976.896321][ T254] ip6_dst_alloc+0x23/0x90 [ 6976.896321][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6976.896321][ T254] ip6_pol_route+0x56f/0x840 [ 6976.896321][ T254] fib6_rule_lookup+0x334/0x630 [ 6976.896321][ T254] ip6_route_output_flags+0x259/0x480 [ 6976.896321][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6976.896321][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6976.896321][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.896321][ T254] netlink_unicast+0x449/0x710 [ 6976.896321][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.896321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.896321][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.896321][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.896321][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.896321][ T254] [ 6976.898507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.898507][ T254] netdev_get_by_index+0x5e/0x80 [ 6976.898507][ T254] fib6_nh_init+0x3d8/0x1580 [ 6976.898507][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6976.898507][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6976.898507][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6976.898507][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6976.898507][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6976.898507][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6976.898507][ T254] addrconf_dad_begin+0x310/0x670 [ 6976.898507][ T254] addrconf_dad_work+0x10b/0xab0 [ 6976.898507][ T254] process_one_work+0x84d/0x18a0 [ 6976.898507][ T254] worker_thread+0x587/0xd30 [ 6976.898507][ T254] kthread+0x28a/0x350 [ 6976.898507][ T254] ret_from_fork+0x31/0x70 [ 6976.898507][ T254] ret_from_fork_asm+0x1a/0x30 [ 6976.898507][ T254] [ 6976.900657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.900657][ T254] netdev_get_by_index+0x5e/0x80 [ 6976.900657][ T254] fib6_nh_init+0x3d8/0x1580 [ 6976.900657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6976.900657][ T254] ip6_route_add+0x1c/0x140 [ 6976.900657][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6976.900657][ T254] inet6_addr_add+0x4f8/0xa40 [ 6976.900657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6976.900657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6976.900657][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.900657][ T254] netlink_unicast+0x449/0x710 [ 6976.900657][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.900657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.900657][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.900657][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.900657][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.900657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6976.900657][ T254] [ 6976.902899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.902899][ T254] netdev_get_by_index+0x5e/0x80 [ 6976.902899][ T254] fib6_nh_init+0x3d8/0x1580 [ 6976.902899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6976.902899][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6976.902899][ T254] ipv6_add_addr+0x411/0x2000 [ 6976.902899][ T254] inet6_addr_add+0x30e/0xa40 [ 6976.902899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6976.902899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6976.902899][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.902899][ T254] netlink_unicast+0x449/0x710 [ 6976.902899][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.902899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.902899][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.902899][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.902899][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.902899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6976.902899][ T254] [ 6976.905143][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.905143][ T254] netdev_get_by_index+0x5e/0x80 [ 6976.905143][ T254] fib6_nh_init+0x3d8/0x1580 [ 6976.905143][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6976.905143][ T254] ip6_route_add+0x1c/0x140 [ 6976.905143][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6976.905143][ T254] addrconf_add_dev+0xe2/0x170 [ 6976.905143][ T254] inet6_addr_add+0x12f/0xa40 [ 6976.905143][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6976.905143][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6976.905143][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.905143][ T254] netlink_unicast+0x449/0x710 [ 6976.905143][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.905143][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.905143][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.905143][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.905143][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.905143][ T254] [ 6976.907337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.907337][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6976.907337][ T254] ipv6_find_idev+0x102/0x170 [ 6976.907337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6976.907337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6976.907337][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.907337][ T254] netlink_unicast+0x449/0x710 [ 6976.907337][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.907337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.907337][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.907337][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.907337][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.907337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6976.907337][ T254] [ 6976.909059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6976.909059][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6976.909059][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6976.909059][ T254] ipv6_find_idev+0x102/0x170 [ 6976.909059][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6976.909059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6976.909059][ T254] netlink_rcv_skb+0x130/0x360 [ 6976.909059][ T254] netlink_unicast+0x449/0x710 [ 6976.909059][ T254] netlink_sendmsg+0x723/0xbe0 [ 6976.909059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6976.909059][ T254] ___sys_sendmsg+0xee/0x170 [ 6976.909059][ T254] __sys_sendmsg+0xcd/0x170 [ 6976.909059][ T254] do_syscall_64+0xc6/0x1e0 [ 6976.909059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6976.909059][ T254] [ 6987.151869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6987.152341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.152341][ T254] dst_init+0x84/0x4a0 [ 6987.152341][ T254] dst_alloc+0x97/0x150 [ 6987.152341][ T254] ip6_dst_alloc+0x23/0x90 [ 6987.152341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6987.152341][ T254] ip6_pol_route+0x56f/0x840 [ 6987.152341][ T254] fib6_rule_lookup+0x334/0x630 [ 6987.152341][ T254] ip6_route_output_flags+0x259/0x480 [ 6987.152341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6987.152341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6987.152341][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.152341][ T254] netlink_unicast+0x449/0x710 [ 6987.152341][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.152341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.152341][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.152341][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.152341][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.152341][ T254] [ 6987.154533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.154533][ T254] netdev_get_by_index+0x5e/0x80 [ 6987.154533][ T254] fib6_nh_init+0x3d8/0x1580 [ 6987.154533][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6987.154533][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6987.154533][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6987.154533][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6987.154533][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6987.154533][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6987.154533][ T254] addrconf_dad_begin+0x310/0x670 [ 6987.154533][ T254] addrconf_dad_work+0x10b/0xab0 [ 6987.154533][ T254] process_one_work+0x84d/0x18a0 [ 6987.154533][ T254] worker_thread+0x587/0xd30 [ 6987.154533][ T254] kthread+0x28a/0x350 [ 6987.154533][ T254] ret_from_fork+0x31/0x70 [ 6987.154533][ T254] ret_from_fork_asm+0x1a/0x30 [ 6987.154533][ T254] [ 6987.156687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.156687][ T254] netdev_get_by_index+0x5e/0x80 [ 6987.156687][ T254] fib6_nh_init+0x3d8/0x1580 [ 6987.156687][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6987.156687][ T254] ip6_route_add+0x1c/0x140 [ 6987.156687][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6987.156687][ T254] inet6_addr_add+0x4f8/0xa40 [ 6987.156687][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6987.156687][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6987.156687][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.156687][ T254] netlink_unicast+0x449/0x710 [ 6987.156687][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.156687][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.156687][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.156687][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.156687][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.156687][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6987.156687][ T254] [ 6987.159341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.159341][ T254] netdev_get_by_index+0x5e/0x80 [ 6987.159341][ T254] fib6_nh_init+0x3d8/0x1580 [ 6987.159341][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6987.159341][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6987.159341][ T254] ipv6_add_addr+0x411/0x2000 [ 6987.159341][ T254] inet6_addr_add+0x30e/0xa40 [ 6987.159341][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6987.159341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6987.159341][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.159341][ T254] netlink_unicast+0x449/0x710 [ 6987.159341][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.159341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.159341][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.159341][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.159341][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.159341][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6987.159341][ T254] [ 6987.161576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.161576][ T254] netdev_get_by_index+0x5e/0x80 [ 6987.161576][ T254] fib6_nh_init+0x3d8/0x1580 [ 6987.161576][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6987.161576][ T254] ip6_route_add+0x1c/0x140 [ 6987.161576][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6987.161576][ T254] addrconf_add_dev+0xe2/0x170 [ 6987.161576][ T254] inet6_addr_add+0x12f/0xa40 [ 6987.161576][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6987.161576][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6987.161576][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.161576][ T254] netlink_unicast+0x449/0x710 [ 6987.161576][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.161576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.161576][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.161576][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.161576][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.161576][ T254] [ 6987.163775][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.163775][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6987.163775][ T254] ipv6_find_idev+0x102/0x170 [ 6987.163775][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6987.163775][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6987.163775][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.163775][ T254] netlink_unicast+0x449/0x710 [ 6987.163775][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.163775][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.163775][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.163775][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.163775][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.163775][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6987.163775][ T254] [ 6987.165503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6987.165503][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6987.165503][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6987.165503][ T254] ipv6_find_idev+0x102/0x170 [ 6987.165503][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6987.165503][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6987.165503][ T254] netlink_rcv_skb+0x130/0x360 [ 6987.165503][ T254] netlink_unicast+0x449/0x710 [ 6987.165503][ T254] netlink_sendmsg+0x723/0xbe0 [ 6987.165503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6987.165503][ T254] ___sys_sendmsg+0xee/0x170 [ 6987.165503][ T254] __sys_sendmsg+0xcd/0x170 [ 6987.165503][ T254] do_syscall_64+0xc6/0x1e0 [ 6987.165503][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6987.165503][ T254] [ 6997.407871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 6997.408363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.408363][ T254] dst_init+0x84/0x4a0 [ 6997.408363][ T254] dst_alloc+0x97/0x150 [ 6997.408363][ T254] ip6_dst_alloc+0x23/0x90 [ 6997.408363][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 6997.408363][ T254] ip6_pol_route+0x56f/0x840 [ 6997.408363][ T254] fib6_rule_lookup+0x334/0x630 [ 6997.408363][ T254] ip6_route_output_flags+0x259/0x480 [ 6997.408363][ T254] inet6_rtm_getroute+0x980/0xf70 [ 6997.408363][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 6997.408363][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.408363][ T254] netlink_unicast+0x449/0x710 [ 6997.408363][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.408363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.408363][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.408363][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.408363][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.408363][ T254] [ 6997.410586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.410586][ T254] netdev_get_by_index+0x5e/0x80 [ 6997.410586][ T254] fib6_nh_init+0x3d8/0x1580 [ 6997.410586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6997.410586][ T254] addrconf_f6i_alloc+0x265/0x560 [ 6997.410586][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 6997.410586][ T254] addrconf_join_anycast+0x1c0/0x220 [ 6997.410586][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 6997.410586][ T254] addrconf_dad_completed+0x12b/0xe20 [ 6997.410586][ T254] addrconf_dad_begin+0x310/0x670 [ 6997.410586][ T254] addrconf_dad_work+0x10b/0xab0 [ 6997.410586][ T254] process_one_work+0x84d/0x18a0 [ 6997.410586][ T254] worker_thread+0x587/0xd30 [ 6997.410586][ T254] kthread+0x28a/0x350 [ 6997.410586][ T254] ret_from_fork+0x31/0x70 [ 6997.410586][ T254] ret_from_fork_asm+0x1a/0x30 [ 6997.410586][ T254] [ 6997.412761][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.412761][ T254] netdev_get_by_index+0x5e/0x80 [ 6997.412761][ T254] fib6_nh_init+0x3d8/0x1580 [ 6997.412761][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6997.412761][ T254] ip6_route_add+0x1c/0x140 [ 6997.412761][ T254] addrconf_prefix_route+0x2a6/0x430 [ 6997.412761][ T254] inet6_addr_add+0x4f8/0xa40 [ 6997.412761][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6997.412761][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6997.412761][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.412761][ T254] netlink_unicast+0x449/0x710 [ 6997.412761][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.412761][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.412761][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.412761][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.412761][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.412761][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6997.412761][ T254] [ 6997.415070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.415070][ T254] netdev_get_by_index+0x5e/0x80 [ 6997.415070][ T254] fib6_nh_init+0x3d8/0x1580 [ 6997.415070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6997.415070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 6997.415070][ T254] ipv6_add_addr+0x411/0x2000 [ 6997.415070][ T254] inet6_addr_add+0x30e/0xa40 [ 6997.415070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6997.415070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6997.415070][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.415070][ T254] netlink_unicast+0x449/0x710 [ 6997.415070][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.415070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.415070][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.415070][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.415070][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.415070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6997.415070][ T254] [ 6997.417336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.417336][ T254] netdev_get_by_index+0x5e/0x80 [ 6997.417336][ T254] fib6_nh_init+0x3d8/0x1580 [ 6997.417336][ T254] ip6_route_info_create+0xf18/0x17d0 [ 6997.417336][ T254] ip6_route_add+0x1c/0x140 [ 6997.417336][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 6997.417336][ T254] addrconf_add_dev+0xe2/0x170 [ 6997.417336][ T254] inet6_addr_add+0x12f/0xa40 [ 6997.417336][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 6997.417336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6997.417336][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.417336][ T254] netlink_unicast+0x449/0x710 [ 6997.417336][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.417336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.417336][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.417336][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.417336][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.417336][ T254] [ 6997.419558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.419558][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 6997.419558][ T254] ipv6_find_idev+0x102/0x170 [ 6997.419558][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6997.419558][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6997.419558][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.419558][ T254] netlink_unicast+0x449/0x710 [ 6997.419558][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.419558][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.419558][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.419558][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.419558][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.419558][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6997.419558][ T254] [ 6997.421294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 6997.421294][ T254] neigh_parms_alloc+0x1e5/0x510 [ 6997.421294][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 6997.421294][ T254] ipv6_find_idev+0x102/0x170 [ 6997.421294][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 6997.421294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 6997.421294][ T254] netlink_rcv_skb+0x130/0x360 [ 6997.421294][ T254] netlink_unicast+0x449/0x710 [ 6997.421294][ T254] netlink_sendmsg+0x723/0xbe0 [ 6997.421294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 6997.421294][ T254] ___sys_sendmsg+0xee/0x170 [ 6997.421294][ T254] __sys_sendmsg+0xcd/0x170 [ 6997.421294][ T254] do_syscall_64+0xc6/0x1e0 [ 6997.421294][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 6997.421294][ T254] [ 7007.663862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7007.664365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.664365][ T254] dst_init+0x84/0x4a0 [ 7007.664365][ T254] dst_alloc+0x97/0x150 [ 7007.664365][ T254] ip6_dst_alloc+0x23/0x90 [ 7007.664365][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7007.664365][ T254] ip6_pol_route+0x56f/0x840 [ 7007.664365][ T254] fib6_rule_lookup+0x334/0x630 [ 7007.664365][ T254] ip6_route_output_flags+0x259/0x480 [ 7007.664365][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7007.664365][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7007.664365][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.664365][ T254] netlink_unicast+0x449/0x710 [ 7007.664365][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.664365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.664365][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.664365][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.664365][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.664365][ T254] [ 7007.667498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.667498][ T254] netdev_get_by_index+0x5e/0x80 [ 7007.667498][ T254] fib6_nh_init+0x3d8/0x1580 [ 7007.667498][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7007.667498][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7007.667498][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7007.667498][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7007.667498][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7007.667498][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7007.667498][ T254] addrconf_dad_begin+0x310/0x670 [ 7007.667498][ T254] addrconf_dad_work+0x10b/0xab0 [ 7007.667498][ T254] process_one_work+0x84d/0x18a0 [ 7007.667498][ T254] worker_thread+0x587/0xd30 [ 7007.667498][ T254] kthread+0x28a/0x350 [ 7007.667498][ T254] ret_from_fork+0x31/0x70 [ 7007.667498][ T254] ret_from_fork_asm+0x1a/0x30 [ 7007.667498][ T254] [ 7007.669666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.669666][ T254] netdev_get_by_index+0x5e/0x80 [ 7007.669666][ T254] fib6_nh_init+0x3d8/0x1580 [ 7007.669666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7007.669666][ T254] ip6_route_add+0x1c/0x140 [ 7007.669666][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7007.669666][ T254] inet6_addr_add+0x4f8/0xa40 [ 7007.669666][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7007.669666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7007.669666][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.669666][ T254] netlink_unicast+0x449/0x710 [ 7007.669666][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.669666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.669666][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.669666][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.669666][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.669666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7007.669666][ T254] [ 7007.671921][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.671921][ T254] netdev_get_by_index+0x5e/0x80 [ 7007.671921][ T254] fib6_nh_init+0x3d8/0x1580 [ 7007.671921][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7007.671921][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7007.671921][ T254] ipv6_add_addr+0x411/0x2000 [ 7007.671921][ T254] inet6_addr_add+0x30e/0xa40 [ 7007.671921][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7007.671921][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7007.671921][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.671921][ T254] netlink_unicast+0x449/0x710 [ 7007.671921][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.671921][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.671921][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.671921][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.671921][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.671921][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7007.671921][ T254] [ 7007.674563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.674563][ T254] netdev_get_by_index+0x5e/0x80 [ 7007.674563][ T254] fib6_nh_init+0x3d8/0x1580 [ 7007.674563][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7007.674563][ T254] ip6_route_add+0x1c/0x140 [ 7007.674563][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7007.674563][ T254] addrconf_add_dev+0xe2/0x170 [ 7007.674563][ T254] inet6_addr_add+0x12f/0xa40 [ 7007.674563][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7007.674563][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7007.674563][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.674563][ T254] netlink_unicast+0x449/0x710 [ 7007.674563][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.674563][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.674563][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.674563][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.674563][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.674563][ T254] [ 7007.676816][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.676816][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7007.676816][ T254] ipv6_find_idev+0x102/0x170 [ 7007.676816][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7007.676816][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7007.676816][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.676816][ T254] netlink_unicast+0x449/0x710 [ 7007.676816][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.676816][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.676816][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.676816][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.676816][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.676816][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7007.676816][ T254] [ 7007.678559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7007.678559][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7007.678559][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7007.678559][ T254] ipv6_find_idev+0x102/0x170 [ 7007.678559][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7007.678559][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7007.678559][ T254] netlink_rcv_skb+0x130/0x360 [ 7007.678559][ T254] netlink_unicast+0x449/0x710 [ 7007.678559][ T254] netlink_sendmsg+0x723/0xbe0 [ 7007.678559][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7007.678559][ T254] ___sys_sendmsg+0xee/0x170 [ 7007.678559][ T254] __sys_sendmsg+0xcd/0x170 [ 7007.678559][ T254] do_syscall_64+0xc6/0x1e0 [ 7007.678559][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7007.678559][ T254] [ 7017.695841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7017.696328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.696328][ T254] dst_init+0x84/0x4a0 [ 7017.696328][ T254] dst_alloc+0x97/0x150 [ 7017.696328][ T254] ip6_dst_alloc+0x23/0x90 [ 7017.696328][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7017.696328][ T254] ip6_pol_route+0x56f/0x840 [ 7017.696328][ T254] fib6_rule_lookup+0x334/0x630 [ 7017.696328][ T254] ip6_route_output_flags+0x259/0x480 [ 7017.696328][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7017.696328][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7017.696328][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.696328][ T254] netlink_unicast+0x449/0x710 [ 7017.696328][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.696328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.696328][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.696328][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.696328][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.696328][ T254] [ 7017.698541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.698541][ T254] netdev_get_by_index+0x5e/0x80 [ 7017.698541][ T254] fib6_nh_init+0x3d8/0x1580 [ 7017.698541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7017.698541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7017.698541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7017.698541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7017.698541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7017.698541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7017.698541][ T254] addrconf_dad_begin+0x310/0x670 [ 7017.698541][ T254] addrconf_dad_work+0x10b/0xab0 [ 7017.698541][ T254] process_one_work+0x84d/0x18a0 [ 7017.698541][ T254] worker_thread+0x587/0xd30 [ 7017.698541][ T254] kthread+0x28a/0x350 [ 7017.698541][ T254] ret_from_fork+0x31/0x70 [ 7017.698541][ T254] ret_from_fork_asm+0x1a/0x30 [ 7017.698541][ T254] [ 7017.700712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.700712][ T254] netdev_get_by_index+0x5e/0x80 [ 7017.700712][ T254] fib6_nh_init+0x3d8/0x1580 [ 7017.700712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7017.700712][ T254] ip6_route_add+0x1c/0x140 [ 7017.700712][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7017.700712][ T254] inet6_addr_add+0x4f8/0xa40 [ 7017.700712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7017.700712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7017.700712][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.700712][ T254] netlink_unicast+0x449/0x710 [ 7017.700712][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.700712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.700712][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.700712][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.700712][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.700712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7017.700712][ T254] [ 7017.702983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.702983][ T254] netdev_get_by_index+0x5e/0x80 [ 7017.702983][ T254] fib6_nh_init+0x3d8/0x1580 [ 7017.702983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7017.702983][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7017.702983][ T254] ipv6_add_addr+0x411/0x2000 [ 7017.702983][ T254] inet6_addr_add+0x30e/0xa40 [ 7017.702983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7017.702983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7017.702983][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.702983][ T254] netlink_unicast+0x449/0x710 [ 7017.702983][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.702983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.702983][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.702983][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.702983][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.702983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7017.702983][ T254] [ 7017.705256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.705256][ T254] netdev_get_by_index+0x5e/0x80 [ 7017.705256][ T254] fib6_nh_init+0x3d8/0x1580 [ 7017.705256][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7017.705256][ T254] ip6_route_add+0x1c/0x140 [ 7017.705256][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7017.705256][ T254] addrconf_add_dev+0xe2/0x170 [ 7017.705256][ T254] inet6_addr_add+0x12f/0xa40 [ 7017.705256][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7017.705256][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7017.705256][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.705256][ T254] netlink_unicast+0x449/0x710 [ 7017.705256][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.705256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.705256][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.705256][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.705256][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.705256][ T254] [ 7017.707494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.707494][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7017.707494][ T254] ipv6_find_idev+0x102/0x170 [ 7017.707494][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7017.707494][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7017.707494][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.707494][ T254] netlink_unicast+0x449/0x710 [ 7017.707494][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.707494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.707494][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.707494][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.707494][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.707494][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7017.707494][ T254] [ 7017.709237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7017.709237][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7017.709237][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7017.709237][ T254] ipv6_find_idev+0x102/0x170 [ 7017.709237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7017.709237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7017.709237][ T254] netlink_rcv_skb+0x130/0x360 [ 7017.709237][ T254] netlink_unicast+0x449/0x710 [ 7017.709237][ T254] netlink_sendmsg+0x723/0xbe0 [ 7017.709237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7017.709237][ T254] ___sys_sendmsg+0xee/0x170 [ 7017.709237][ T254] __sys_sendmsg+0xcd/0x170 [ 7017.709237][ T254] do_syscall_64+0xc6/0x1e0 [ 7017.709237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7017.709237][ T254] [ 7027.743840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7027.744318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.744318][ T254] dst_init+0x84/0x4a0 [ 7027.744318][ T254] dst_alloc+0x97/0x150 [ 7027.744318][ T254] ip6_dst_alloc+0x23/0x90 [ 7027.744318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7027.744318][ T254] ip6_pol_route+0x56f/0x840 [ 7027.744318][ T254] fib6_rule_lookup+0x334/0x630 [ 7027.744318][ T254] ip6_route_output_flags+0x259/0x480 [ 7027.744318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7027.744318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7027.744318][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.744318][ T254] netlink_unicast+0x449/0x710 [ 7027.744318][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.744318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.744318][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.744318][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.744318][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.744318][ T254] [ 7027.746548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.746548][ T254] netdev_get_by_index+0x5e/0x80 [ 7027.746548][ T254] fib6_nh_init+0x3d8/0x1580 [ 7027.746548][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7027.746548][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7027.746548][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7027.746548][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7027.746548][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7027.746548][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7027.746548][ T254] addrconf_dad_begin+0x310/0x670 [ 7027.746548][ T254] addrconf_dad_work+0x10b/0xab0 [ 7027.746548][ T254] process_one_work+0x84d/0x18a0 [ 7027.746548][ T254] worker_thread+0x587/0xd30 [ 7027.746548][ T254] kthread+0x28a/0x350 [ 7027.746548][ T254] ret_from_fork+0x31/0x70 [ 7027.746548][ T254] ret_from_fork_asm+0x1a/0x30 [ 7027.746548][ T254] [ 7027.748715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.748715][ T254] netdev_get_by_index+0x5e/0x80 [ 7027.748715][ T254] fib6_nh_init+0x3d8/0x1580 [ 7027.748715][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7027.748715][ T254] ip6_route_add+0x1c/0x140 [ 7027.748715][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7027.748715][ T254] inet6_addr_add+0x4f8/0xa40 [ 7027.748715][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7027.748715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7027.748715][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.748715][ T254] netlink_unicast+0x449/0x710 [ 7027.748715][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.748715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.748715][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.748715][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.748715][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.748715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7027.748715][ T254] [ 7027.751042][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.751042][ T254] netdev_get_by_index+0x5e/0x80 [ 7027.751042][ T254] fib6_nh_init+0x3d8/0x1580 [ 7027.751042][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7027.751042][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7027.751042][ T254] ipv6_add_addr+0x411/0x2000 [ 7027.751042][ T254] inet6_addr_add+0x30e/0xa40 [ 7027.751042][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7027.751042][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7027.751042][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.751042][ T254] netlink_unicast+0x449/0x710 [ 7027.751042][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.751042][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.751042][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.751042][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.751042][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.751042][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7027.751042][ T254] [ 7027.753301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.753301][ T254] netdev_get_by_index+0x5e/0x80 [ 7027.753301][ T254] fib6_nh_init+0x3d8/0x1580 [ 7027.753301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7027.753301][ T254] ip6_route_add+0x1c/0x140 [ 7027.753301][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7027.753301][ T254] addrconf_add_dev+0xe2/0x170 [ 7027.753301][ T254] inet6_addr_add+0x12f/0xa40 [ 7027.753301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7027.753301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7027.753301][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.753301][ T254] netlink_unicast+0x449/0x710 [ 7027.753301][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.753301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.753301][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.753301][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.753301][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.753301][ T254] [ 7027.755526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.755526][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7027.755526][ T254] ipv6_find_idev+0x102/0x170 [ 7027.755526][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7027.755526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7027.755526][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.755526][ T254] netlink_unicast+0x449/0x710 [ 7027.755526][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.755526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.755526][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.755526][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.755526][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.755526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7027.755526][ T254] [ 7027.757264][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7027.757264][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7027.757264][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7027.757264][ T254] ipv6_find_idev+0x102/0x170 [ 7027.757264][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7027.757264][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7027.757264][ T254] netlink_rcv_skb+0x130/0x360 [ 7027.757264][ T254] netlink_unicast+0x449/0x710 [ 7027.757264][ T254] netlink_sendmsg+0x723/0xbe0 [ 7027.757264][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7027.757264][ T254] ___sys_sendmsg+0xee/0x170 [ 7027.757264][ T254] __sys_sendmsg+0xcd/0x170 [ 7027.757264][ T254] do_syscall_64+0xc6/0x1e0 [ 7027.757264][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7027.757264][ T254] [ 7037.951875][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7037.952369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.952369][ T254] dst_init+0x84/0x4a0 [ 7037.952369][ T254] dst_alloc+0x97/0x150 [ 7037.952369][ T254] ip6_dst_alloc+0x23/0x90 [ 7037.952369][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7037.952369][ T254] ip6_pol_route+0x56f/0x840 [ 7037.952369][ T254] fib6_rule_lookup+0x334/0x630 [ 7037.952369][ T254] ip6_route_output_flags+0x259/0x480 [ 7037.952369][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7037.952369][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7037.952369][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.952369][ T254] netlink_unicast+0x449/0x710 [ 7037.952369][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.952369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.952369][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.952369][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.952369][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.952369][ T254] [ 7037.954581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.954581][ T254] netdev_get_by_index+0x5e/0x80 [ 7037.954581][ T254] fib6_nh_init+0x3d8/0x1580 [ 7037.954581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7037.954581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7037.954581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7037.954581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7037.954581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7037.954581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7037.954581][ T254] addrconf_dad_begin+0x310/0x670 [ 7037.954581][ T254] addrconf_dad_work+0x10b/0xab0 [ 7037.954581][ T254] process_one_work+0x84d/0x18a0 [ 7037.954581][ T254] worker_thread+0x587/0xd30 [ 7037.954581][ T254] kthread+0x28a/0x350 [ 7037.954581][ T254] ret_from_fork+0x31/0x70 [ 7037.954581][ T254] ret_from_fork_asm+0x1a/0x30 [ 7037.954581][ T254] [ 7037.956760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.956760][ T254] netdev_get_by_index+0x5e/0x80 [ 7037.956760][ T254] fib6_nh_init+0x3d8/0x1580 [ 7037.956760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7037.956760][ T254] ip6_route_add+0x1c/0x140 [ 7037.956760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7037.956760][ T254] inet6_addr_add+0x4f8/0xa40 [ 7037.956760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7037.956760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7037.956760][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.956760][ T254] netlink_unicast+0x449/0x710 [ 7037.956760][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.956760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.956760][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.956760][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.956760][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.956760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7037.956760][ T254] [ 7037.959019][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.959019][ T254] netdev_get_by_index+0x5e/0x80 [ 7037.959019][ T254] fib6_nh_init+0x3d8/0x1580 [ 7037.959019][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7037.959019][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7037.959019][ T254] ipv6_add_addr+0x411/0x2000 [ 7037.959019][ T254] inet6_addr_add+0x30e/0xa40 [ 7037.959019][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7037.959019][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7037.959019][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.959019][ T254] netlink_unicast+0x449/0x710 [ 7037.959019][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.959019][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.959019][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.959019][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.959019][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.959019][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7037.959019][ T254] [ 7037.961290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.961290][ T254] netdev_get_by_index+0x5e/0x80 [ 7037.961290][ T254] fib6_nh_init+0x3d8/0x1580 [ 7037.961290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7037.961290][ T254] ip6_route_add+0x1c/0x140 [ 7037.961290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7037.961290][ T254] addrconf_add_dev+0xe2/0x170 [ 7037.961290][ T254] inet6_addr_add+0x12f/0xa40 [ 7037.961290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7037.961290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7037.961290][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.961290][ T254] netlink_unicast+0x449/0x710 [ 7037.961290][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.961290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.961290][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.961290][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.961290][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.961290][ T254] [ 7037.963507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.963507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7037.963507][ T254] ipv6_find_idev+0x102/0x170 [ 7037.963507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7037.963507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7037.963507][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.963507][ T254] netlink_unicast+0x449/0x710 [ 7037.963507][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.963507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.963507][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.963507][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.963507][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.963507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7037.963507][ T254] [ 7037.965249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7037.965249][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7037.965249][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7037.965249][ T254] ipv6_find_idev+0x102/0x170 [ 7037.965249][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7037.965249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7037.965249][ T254] netlink_rcv_skb+0x130/0x360 [ 7037.965249][ T254] netlink_unicast+0x449/0x710 [ 7037.965249][ T254] netlink_sendmsg+0x723/0xbe0 [ 7037.965249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7037.965249][ T254] ___sys_sendmsg+0xee/0x170 [ 7037.965249][ T254] __sys_sendmsg+0xcd/0x170 [ 7037.965249][ T254] do_syscall_64+0xc6/0x1e0 [ 7037.965249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7037.965249][ T254] [ 7048.039865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7048.040339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.040339][ T254] dst_init+0x84/0x4a0 [ 7048.040339][ T254] dst_alloc+0x97/0x150 [ 7048.040339][ T254] ip6_dst_alloc+0x23/0x90 [ 7048.040339][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7048.040339][ T254] ip6_pol_route+0x56f/0x840 [ 7048.040339][ T254] fib6_rule_lookup+0x334/0x630 [ 7048.040339][ T254] ip6_route_output_flags+0x259/0x480 [ 7048.040339][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7048.040339][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7048.040339][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.040339][ T254] netlink_unicast+0x449/0x710 [ 7048.040339][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.040339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.040339][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.040339][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.040339][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.040339][ T254] [ 7048.042521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.042521][ T254] netdev_get_by_index+0x5e/0x80 [ 7048.042521][ T254] fib6_nh_init+0x3d8/0x1580 [ 7048.042521][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7048.042521][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7048.042521][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7048.042521][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7048.042521][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7048.042521][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7048.042521][ T254] addrconf_dad_begin+0x310/0x670 [ 7048.042521][ T254] addrconf_dad_work+0x10b/0xab0 [ 7048.042521][ T254] process_one_work+0x84d/0x18a0 [ 7048.042521][ T254] worker_thread+0x587/0xd30 [ 7048.042521][ T254] kthread+0x28a/0x350 [ 7048.042521][ T254] ret_from_fork+0x31/0x70 [ 7048.042521][ T254] ret_from_fork_asm+0x1a/0x30 [ 7048.042521][ T254] [ 7048.044676][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.044676][ T254] netdev_get_by_index+0x5e/0x80 [ 7048.044676][ T254] fib6_nh_init+0x3d8/0x1580 [ 7048.044676][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7048.044676][ T254] ip6_route_add+0x1c/0x140 [ 7048.044676][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7048.044676][ T254] inet6_addr_add+0x4f8/0xa40 [ 7048.044676][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7048.044676][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7048.044676][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.044676][ T254] netlink_unicast+0x449/0x710 [ 7048.044676][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.044676][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.044676][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.044676][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.044676][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.044676][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7048.044676][ T254] [ 7048.046909][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.046909][ T254] netdev_get_by_index+0x5e/0x80 [ 7048.046909][ T254] fib6_nh_init+0x3d8/0x1580 [ 7048.046909][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7048.046909][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7048.046909][ T254] ipv6_add_addr+0x411/0x2000 [ 7048.046909][ T254] inet6_addr_add+0x30e/0xa40 [ 7048.046909][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7048.046909][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7048.046909][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.046909][ T254] netlink_unicast+0x449/0x710 [ 7048.046909][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.046909][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.046909][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.046909][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.046909][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.046909][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7048.046909][ T254] [ 7048.049139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.049139][ T254] netdev_get_by_index+0x5e/0x80 [ 7048.049139][ T254] fib6_nh_init+0x3d8/0x1580 [ 7048.049139][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7048.049139][ T254] ip6_route_add+0x1c/0x140 [ 7048.049139][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7048.049139][ T254] addrconf_add_dev+0xe2/0x170 [ 7048.049139][ T254] inet6_addr_add+0x12f/0xa40 [ 7048.049139][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7048.049139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7048.049139][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.049139][ T254] netlink_unicast+0x449/0x710 [ 7048.049139][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.049139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.049139][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.049139][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.049139][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.049139][ T254] [ 7048.051339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.051339][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7048.051339][ T254] ipv6_find_idev+0x102/0x170 [ 7048.051339][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7048.051339][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7048.051339][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.051339][ T254] netlink_unicast+0x449/0x710 [ 7048.051339][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.051339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.051339][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.051339][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.051339][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.051339][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7048.051339][ T254] [ 7048.053061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7048.053061][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7048.053061][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7048.053061][ T254] ipv6_find_idev+0x102/0x170 [ 7048.053061][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7048.053061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7048.053061][ T254] netlink_rcv_skb+0x130/0x360 [ 7048.053061][ T254] netlink_unicast+0x449/0x710 [ 7048.053061][ T254] netlink_sendmsg+0x723/0xbe0 [ 7048.053061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7048.053061][ T254] ___sys_sendmsg+0xee/0x170 [ 7048.053061][ T254] __sys_sendmsg+0xcd/0x170 [ 7048.053061][ T254] do_syscall_64+0xc6/0x1e0 [ 7048.053061][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7048.053061][ T254] [ 7058.295835][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7058.296317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.296317][ T254] dst_init+0x84/0x4a0 [ 7058.296317][ T254] dst_alloc+0x97/0x150 [ 7058.296317][ T254] ip6_dst_alloc+0x23/0x90 [ 7058.296317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7058.296317][ T254] ip6_pol_route+0x56f/0x840 [ 7058.296317][ T254] fib6_rule_lookup+0x334/0x630 [ 7058.296317][ T254] ip6_route_output_flags+0x259/0x480 [ 7058.296317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7058.296317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7058.296317][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.296317][ T254] netlink_unicast+0x449/0x710 [ 7058.296317][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.296317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.296317][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.296317][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.296317][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.296317][ T254] [ 7058.298513][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.298513][ T254] netdev_get_by_index+0x5e/0x80 [ 7058.298513][ T254] fib6_nh_init+0x3d8/0x1580 [ 7058.298513][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7058.298513][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7058.298513][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7058.298513][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7058.298513][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7058.298513][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7058.298513][ T254] addrconf_dad_begin+0x310/0x670 [ 7058.298513][ T254] addrconf_dad_work+0x10b/0xab0 [ 7058.298513][ T254] process_one_work+0x84d/0x18a0 [ 7058.298513][ T254] worker_thread+0x587/0xd30 [ 7058.298513][ T254] kthread+0x28a/0x350 [ 7058.298513][ T254] ret_from_fork+0x31/0x70 [ 7058.298513][ T254] ret_from_fork_asm+0x1a/0x30 [ 7058.298513][ T254] [ 7058.300650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.300650][ T254] netdev_get_by_index+0x5e/0x80 [ 7058.300650][ T254] fib6_nh_init+0x3d8/0x1580 [ 7058.300650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7058.300650][ T254] ip6_route_add+0x1c/0x140 [ 7058.300650][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7058.300650][ T254] inet6_addr_add+0x4f8/0xa40 [ 7058.300650][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7058.300650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7058.300650][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.300650][ T254] netlink_unicast+0x449/0x710 [ 7058.300650][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.300650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.300650][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.300650][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.300650][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.300650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7058.300650][ T254] [ 7058.302880][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.302880][ T254] netdev_get_by_index+0x5e/0x80 [ 7058.302880][ T254] fib6_nh_init+0x3d8/0x1580 [ 7058.302880][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7058.302880][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7058.302880][ T254] ipv6_add_addr+0x411/0x2000 [ 7058.302880][ T254] inet6_addr_add+0x30e/0xa40 [ 7058.302880][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7058.302880][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7058.302880][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.302880][ T254] netlink_unicast+0x449/0x710 [ 7058.302880][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.302880][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.302880][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.302880][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.302880][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.302880][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7058.302880][ T254] [ 7058.305643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.305643][ T254] netdev_get_by_index+0x5e/0x80 [ 7058.305643][ T254] fib6_nh_init+0x3d8/0x1580 [ 7058.305643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7058.305643][ T254] ip6_route_add+0x1c/0x140 [ 7058.305643][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7058.305643][ T254] addrconf_add_dev+0xe2/0x170 [ 7058.305643][ T254] inet6_addr_add+0x12f/0xa40 [ 7058.305643][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7058.305643][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7058.305643][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.305643][ T254] netlink_unicast+0x449/0x710 [ 7058.305643][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.305643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.305643][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.305643][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.305643][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.305643][ T254] [ 7058.307833][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.307833][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7058.307833][ T254] ipv6_find_idev+0x102/0x170 [ 7058.307833][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7058.307833][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7058.307833][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.307833][ T254] netlink_unicast+0x449/0x710 [ 7058.307833][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.307833][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.307833][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.307833][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.307833][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.307833][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7058.307833][ T254] [ 7058.309549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7058.309549][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7058.309549][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7058.309549][ T254] ipv6_find_idev+0x102/0x170 [ 7058.309549][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7058.309549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7058.309549][ T254] netlink_rcv_skb+0x130/0x360 [ 7058.309549][ T254] netlink_unicast+0x449/0x710 [ 7058.309549][ T254] netlink_sendmsg+0x723/0xbe0 [ 7058.309549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7058.309549][ T254] ___sys_sendmsg+0xee/0x170 [ 7058.309549][ T254] __sys_sendmsg+0xcd/0x170 [ 7058.309549][ T254] do_syscall_64+0xc6/0x1e0 [ 7058.309549][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7058.309549][ T254] [ 7068.351825][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7068.352534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.352534][ T254] dst_init+0x84/0x4a0 [ 7068.352534][ T254] dst_alloc+0x97/0x150 [ 7068.352534][ T254] ip6_dst_alloc+0x23/0x90 [ 7068.352534][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7068.352534][ T254] ip6_pol_route+0x56f/0x840 [ 7068.352534][ T254] fib6_rule_lookup+0x334/0x630 [ 7068.352534][ T254] ip6_route_output_flags+0x259/0x480 [ 7068.352534][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7068.352534][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7068.352534][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.352534][ T254] netlink_unicast+0x449/0x710 [ 7068.352534][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.352534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.352534][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.352534][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.352534][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.352534][ T254] [ 7068.355841][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.355841][ T254] netdev_get_by_index+0x5e/0x80 [ 7068.355841][ T254] fib6_nh_init+0x3d8/0x1580 [ 7068.355841][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7068.355841][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7068.355841][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7068.355841][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7068.355841][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7068.355841][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7068.355841][ T254] addrconf_dad_begin+0x310/0x670 [ 7068.355841][ T254] addrconf_dad_work+0x10b/0xab0 [ 7068.355841][ T254] process_one_work+0x84d/0x18a0 [ 7068.355841][ T254] worker_thread+0x587/0xd30 [ 7068.355841][ T254] kthread+0x28a/0x350 [ 7068.355841][ T254] ret_from_fork+0x31/0x70 [ 7068.355841][ T254] ret_from_fork_asm+0x1a/0x30 [ 7068.355841][ T254] [ 7068.359139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.359139][ T254] netdev_get_by_index+0x5e/0x80 [ 7068.359139][ T254] fib6_nh_init+0x3d8/0x1580 [ 7068.359139][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7068.359139][ T254] ip6_route_add+0x1c/0x140 [ 7068.359139][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7068.359139][ T254] inet6_addr_add+0x4f8/0xa40 [ 7068.359139][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7068.359139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7068.359139][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.359139][ T254] netlink_unicast+0x449/0x710 [ 7068.359139][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.359139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.359139][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.359139][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.359139][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.359139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7068.359139][ T254] [ 7068.362576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.362576][ T254] netdev_get_by_index+0x5e/0x80 [ 7068.362576][ T254] fib6_nh_init+0x3d8/0x1580 [ 7068.362576][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7068.362576][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7068.362576][ T254] ipv6_add_addr+0x411/0x2000 [ 7068.362576][ T254] inet6_addr_add+0x30e/0xa40 [ 7068.362576][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7068.362576][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7068.362576][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.362576][ T254] netlink_unicast+0x449/0x710 [ 7068.362576][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.362576][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.362576][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.362576][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.362576][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.362576][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7068.362576][ T254] [ 7068.366035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.366035][ T254] netdev_get_by_index+0x5e/0x80 [ 7068.366035][ T254] fib6_nh_init+0x3d8/0x1580 [ 7068.366035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7068.366035][ T254] ip6_route_add+0x1c/0x140 [ 7068.366035][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7068.366035][ T254] addrconf_add_dev+0xe2/0x170 [ 7068.366035][ T254] inet6_addr_add+0x12f/0xa40 [ 7068.366035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7068.366035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7068.366035][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.366035][ T254] netlink_unicast+0x449/0x710 [ 7068.366035][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.366035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.366035][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.366035][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.366035][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.366035][ T254] [ 7068.369409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.369409][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7068.369409][ T254] ipv6_find_idev+0x102/0x170 [ 7068.369409][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7068.369409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7068.369409][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.369409][ T254] netlink_unicast+0x449/0x710 [ 7068.369409][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.369409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.369409][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.369409][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.369409][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.369409][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7068.369409][ T254] [ 7068.372055][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7068.372055][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7068.372055][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7068.372055][ T254] ipv6_find_idev+0x102/0x170 [ 7068.372055][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7068.372055][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7068.372055][ T254] netlink_rcv_skb+0x130/0x360 [ 7068.372055][ T254] netlink_unicast+0x449/0x710 [ 7068.372055][ T254] netlink_sendmsg+0x723/0xbe0 [ 7068.372055][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7068.372055][ T254] ___sys_sendmsg+0xee/0x170 [ 7068.372055][ T254] __sys_sendmsg+0xcd/0x170 [ 7068.372055][ T254] do_syscall_64+0xc6/0x1e0 [ 7068.372055][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7068.372055][ T254] [ 7078.399861][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7078.400339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.400339][ T254] dst_init+0x84/0x4a0 [ 7078.400339][ T254] dst_alloc+0x97/0x150 [ 7078.400339][ T254] ip6_dst_alloc+0x23/0x90 [ 7078.400339][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7078.400339][ T254] ip6_pol_route+0x56f/0x840 [ 7078.400339][ T254] fib6_rule_lookup+0x334/0x630 [ 7078.400339][ T254] ip6_route_output_flags+0x259/0x480 [ 7078.400339][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7078.400339][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7078.400339][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.400339][ T254] netlink_unicast+0x449/0x710 [ 7078.400339][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.400339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.400339][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.400339][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.400339][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.400339][ T254] [ 7078.402528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.402528][ T254] netdev_get_by_index+0x5e/0x80 [ 7078.402528][ T254] fib6_nh_init+0x3d8/0x1580 [ 7078.402528][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7078.402528][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7078.402528][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7078.402528][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7078.402528][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7078.402528][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7078.402528][ T254] addrconf_dad_begin+0x310/0x670 [ 7078.402528][ T254] addrconf_dad_work+0x10b/0xab0 [ 7078.402528][ T254] process_one_work+0x84d/0x18a0 [ 7078.402528][ T254] worker_thread+0x587/0xd30 [ 7078.402528][ T254] kthread+0x28a/0x350 [ 7078.402528][ T254] ret_from_fork+0x31/0x70 [ 7078.402528][ T254] ret_from_fork_asm+0x1a/0x30 [ 7078.402528][ T254] [ 7078.404684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.404684][ T254] netdev_get_by_index+0x5e/0x80 [ 7078.404684][ T254] fib6_nh_init+0x3d8/0x1580 [ 7078.404684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7078.404684][ T254] ip6_route_add+0x1c/0x140 [ 7078.404684][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7078.404684][ T254] inet6_addr_add+0x4f8/0xa40 [ 7078.404684][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7078.404684][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7078.404684][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.404684][ T254] netlink_unicast+0x449/0x710 [ 7078.404684][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.404684][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.404684][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.404684][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.404684][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.404684][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7078.404684][ T254] [ 7078.406919][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.406919][ T254] netdev_get_by_index+0x5e/0x80 [ 7078.406919][ T254] fib6_nh_init+0x3d8/0x1580 [ 7078.406919][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7078.406919][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7078.406919][ T254] ipv6_add_addr+0x411/0x2000 [ 7078.406919][ T254] inet6_addr_add+0x30e/0xa40 [ 7078.406919][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7078.406919][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7078.406919][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.406919][ T254] netlink_unicast+0x449/0x710 [ 7078.406919][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.406919][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.406919][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.406919][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.406919][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.406919][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7078.406919][ T254] [ 7078.409152][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.409152][ T254] netdev_get_by_index+0x5e/0x80 [ 7078.409152][ T254] fib6_nh_init+0x3d8/0x1580 [ 7078.409152][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7078.409152][ T254] ip6_route_add+0x1c/0x140 [ 7078.409152][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7078.409152][ T254] addrconf_add_dev+0xe2/0x170 [ 7078.409152][ T254] inet6_addr_add+0x12f/0xa40 [ 7078.409152][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7078.409152][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7078.409152][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.409152][ T254] netlink_unicast+0x449/0x710 [ 7078.409152][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.409152][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.409152][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.409152][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.409152][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.409152][ T254] [ 7078.411342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.411342][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7078.411342][ T254] ipv6_find_idev+0x102/0x170 [ 7078.411342][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7078.411342][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7078.411342][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.411342][ T254] netlink_unicast+0x449/0x710 [ 7078.411342][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.411342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.411342][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.411342][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.411342][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.411342][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7078.411342][ T254] [ 7078.413072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7078.413072][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7078.413072][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7078.413072][ T254] ipv6_find_idev+0x102/0x170 [ 7078.413072][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7078.413072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7078.413072][ T254] netlink_rcv_skb+0x130/0x360 [ 7078.413072][ T254] netlink_unicast+0x449/0x710 [ 7078.413072][ T254] netlink_sendmsg+0x723/0xbe0 [ 7078.413072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7078.413072][ T254] ___sys_sendmsg+0xee/0x170 [ 7078.413072][ T254] __sys_sendmsg+0xcd/0x170 [ 7078.413072][ T254] do_syscall_64+0xc6/0x1e0 [ 7078.413072][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7078.413072][ T254] [ 7088.416838][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7088.417301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.417301][ T254] dst_init+0x84/0x4a0 [ 7088.417301][ T254] dst_alloc+0x97/0x150 [ 7088.417301][ T254] ip6_dst_alloc+0x23/0x90 [ 7088.417301][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7088.417301][ T254] ip6_pol_route+0x56f/0x840 [ 7088.417301][ T254] fib6_rule_lookup+0x334/0x630 [ 7088.417301][ T254] ip6_route_output_flags+0x259/0x480 [ 7088.417301][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7088.417301][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7088.417301][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.417301][ T254] netlink_unicast+0x449/0x710 [ 7088.417301][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.417301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.417301][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.417301][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.417301][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.417301][ T254] [ 7088.419504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.419504][ T254] netdev_get_by_index+0x5e/0x80 [ 7088.419504][ T254] fib6_nh_init+0x3d8/0x1580 [ 7088.419504][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7088.419504][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7088.419504][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7088.419504][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7088.419504][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7088.419504][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7088.419504][ T254] addrconf_dad_begin+0x310/0x670 [ 7088.419504][ T254] addrconf_dad_work+0x10b/0xab0 [ 7088.419504][ T254] process_one_work+0x84d/0x18a0 [ 7088.419504][ T254] worker_thread+0x587/0xd30 [ 7088.419504][ T254] kthread+0x28a/0x350 [ 7088.419504][ T254] ret_from_fork+0x31/0x70 [ 7088.419504][ T254] ret_from_fork_asm+0x1a/0x30 [ 7088.419504][ T254] [ 7088.421647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.421647][ T254] netdev_get_by_index+0x5e/0x80 [ 7088.421647][ T254] fib6_nh_init+0x3d8/0x1580 [ 7088.421647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7088.421647][ T254] ip6_route_add+0x1c/0x140 [ 7088.421647][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7088.421647][ T254] inet6_addr_add+0x4f8/0xa40 [ 7088.421647][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7088.421647][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7088.421647][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.421647][ T254] netlink_unicast+0x449/0x710 [ 7088.421647][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.421647][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.421647][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.421647][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.421647][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.421647][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7088.421647][ T254] [ 7088.423881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.423881][ T254] netdev_get_by_index+0x5e/0x80 [ 7088.423881][ T254] fib6_nh_init+0x3d8/0x1580 [ 7088.423881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7088.423881][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7088.423881][ T254] ipv6_add_addr+0x411/0x2000 [ 7088.423881][ T254] inet6_addr_add+0x30e/0xa40 [ 7088.423881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7088.423881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7088.423881][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.423881][ T254] netlink_unicast+0x449/0x710 [ 7088.423881][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.423881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.423881][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.423881][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.423881][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.423881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7088.423881][ T254] [ 7088.426128][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.426128][ T254] netdev_get_by_index+0x5e/0x80 [ 7088.426128][ T254] fib6_nh_init+0x3d8/0x1580 [ 7088.426128][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7088.426128][ T254] ip6_route_add+0x1c/0x140 [ 7088.426128][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7088.426128][ T254] addrconf_add_dev+0xe2/0x170 [ 7088.426128][ T254] inet6_addr_add+0x12f/0xa40 [ 7088.426128][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7088.426128][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7088.426128][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.426128][ T254] netlink_unicast+0x449/0x710 [ 7088.426128][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.426128][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.426128][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.426128][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.426128][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.426128][ T254] [ 7088.428331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.428331][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7088.428331][ T254] ipv6_find_idev+0x102/0x170 [ 7088.428331][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7088.428331][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7088.428331][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.428331][ T254] netlink_unicast+0x449/0x710 [ 7088.428331][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.428331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.428331][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.428331][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.428331][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.428331][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7088.428331][ T254] [ 7088.430051][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7088.430051][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7088.430051][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7088.430051][ T254] ipv6_find_idev+0x102/0x170 [ 7088.430051][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7088.430051][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7088.430051][ T254] netlink_rcv_skb+0x130/0x360 [ 7088.430051][ T254] netlink_unicast+0x449/0x710 [ 7088.430051][ T254] netlink_sendmsg+0x723/0xbe0 [ 7088.430051][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7088.430051][ T254] ___sys_sendmsg+0xee/0x170 [ 7088.430051][ T254] __sys_sendmsg+0xcd/0x170 [ 7088.430051][ T254] do_syscall_64+0xc6/0x1e0 [ 7088.430051][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7088.430051][ T254] [ 7098.591908][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7098.592382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.592382][ T254] dst_init+0x84/0x4a0 [ 7098.592382][ T254] dst_alloc+0x97/0x150 [ 7098.592382][ T254] ip6_dst_alloc+0x23/0x90 [ 7098.592382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7098.592382][ T254] ip6_pol_route+0x56f/0x840 [ 7098.592382][ T254] fib6_rule_lookup+0x334/0x630 [ 7098.592382][ T254] ip6_route_output_flags+0x259/0x480 [ 7098.592382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7098.592382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7098.592382][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.592382][ T254] netlink_unicast+0x449/0x710 [ 7098.592382][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.592382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.592382][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.592382][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.592382][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.592382][ T254] [ 7098.594589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.594589][ T254] netdev_get_by_index+0x5e/0x80 [ 7098.594589][ T254] fib6_nh_init+0x3d8/0x1580 [ 7098.594589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7098.594589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7098.594589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7098.594589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7098.594589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7098.594589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7098.594589][ T254] addrconf_dad_begin+0x310/0x670 [ 7098.594589][ T254] addrconf_dad_work+0x10b/0xab0 [ 7098.594589][ T254] process_one_work+0x84d/0x18a0 [ 7098.594589][ T254] worker_thread+0x587/0xd30 [ 7098.594589][ T254] kthread+0x28a/0x350 [ 7098.594589][ T254] ret_from_fork+0x31/0x70 [ 7098.594589][ T254] ret_from_fork_asm+0x1a/0x30 [ 7098.594589][ T254] [ 7098.596722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.596722][ T254] netdev_get_by_index+0x5e/0x80 [ 7098.596722][ T254] fib6_nh_init+0x3d8/0x1580 [ 7098.596722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7098.596722][ T254] ip6_route_add+0x1c/0x140 [ 7098.596722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7098.596722][ T254] inet6_addr_add+0x4f8/0xa40 [ 7098.596722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7098.596722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7098.596722][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.596722][ T254] netlink_unicast+0x449/0x710 [ 7098.596722][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.596722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.596722][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.596722][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.596722][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.596722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7098.596722][ T254] [ 7098.598948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.598948][ T254] netdev_get_by_index+0x5e/0x80 [ 7098.598948][ T254] fib6_nh_init+0x3d8/0x1580 [ 7098.598948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7098.598948][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7098.598948][ T254] ipv6_add_addr+0x411/0x2000 [ 7098.598948][ T254] inet6_addr_add+0x30e/0xa40 [ 7098.598948][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7098.598948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7098.598948][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.598948][ T254] netlink_unicast+0x449/0x710 [ 7098.598948][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.598948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.598948][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.598948][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.598948][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.598948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7098.598948][ T254] [ 7098.601178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.601178][ T254] netdev_get_by_index+0x5e/0x80 [ 7098.601178][ T254] fib6_nh_init+0x3d8/0x1580 [ 7098.601178][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7098.601178][ T254] ip6_route_add+0x1c/0x140 [ 7098.601178][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7098.601178][ T254] addrconf_add_dev+0xe2/0x170 [ 7098.601178][ T254] inet6_addr_add+0x12f/0xa40 [ 7098.601178][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7098.601178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7098.601178][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.601178][ T254] netlink_unicast+0x449/0x710 [ 7098.601178][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.601178][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.601178][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.601178][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.601178][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.601178][ T254] [ 7098.603376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.603376][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7098.603376][ T254] ipv6_find_idev+0x102/0x170 [ 7098.603376][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7098.603376][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7098.603376][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.603376][ T254] netlink_unicast+0x449/0x710 [ 7098.603376][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.603376][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.603376][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.603376][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.603376][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.603376][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7098.603376][ T254] [ 7098.605100][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7098.605100][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7098.605100][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7098.605100][ T254] ipv6_find_idev+0x102/0x170 [ 7098.605100][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7098.605100][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7098.605100][ T254] netlink_rcv_skb+0x130/0x360 [ 7098.605100][ T254] netlink_unicast+0x449/0x710 [ 7098.605100][ T254] netlink_sendmsg+0x723/0xbe0 [ 7098.605100][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7098.605100][ T254] ___sys_sendmsg+0xee/0x170 [ 7098.605100][ T254] __sys_sendmsg+0xcd/0x170 [ 7098.605100][ T254] do_syscall_64+0xc6/0x1e0 [ 7098.605100][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7098.605100][ T254] [ 7108.847847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7108.848318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.848318][ T254] dst_init+0x84/0x4a0 [ 7108.848318][ T254] dst_alloc+0x97/0x150 [ 7108.848318][ T254] ip6_dst_alloc+0x23/0x90 [ 7108.848318][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7108.848318][ T254] ip6_pol_route+0x56f/0x840 [ 7108.848318][ T254] fib6_rule_lookup+0x334/0x630 [ 7108.848318][ T254] ip6_route_output_flags+0x259/0x480 [ 7108.848318][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7108.848318][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7108.848318][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.848318][ T254] netlink_unicast+0x449/0x710 [ 7108.848318][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.848318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.848318][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.848318][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.848318][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.848318][ T254] [ 7108.850507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.850507][ T254] netdev_get_by_index+0x5e/0x80 [ 7108.850507][ T254] fib6_nh_init+0x3d8/0x1580 [ 7108.850507][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7108.850507][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7108.850507][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7108.850507][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7108.850507][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7108.850507][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7108.850507][ T254] addrconf_dad_begin+0x310/0x670 [ 7108.850507][ T254] addrconf_dad_work+0x10b/0xab0 [ 7108.850507][ T254] process_one_work+0x84d/0x18a0 [ 7108.850507][ T254] worker_thread+0x587/0xd30 [ 7108.850507][ T254] kthread+0x28a/0x350 [ 7108.850507][ T254] ret_from_fork+0x31/0x70 [ 7108.850507][ T254] ret_from_fork_asm+0x1a/0x30 [ 7108.850507][ T254] [ 7108.852650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.852650][ T254] netdev_get_by_index+0x5e/0x80 [ 7108.852650][ T254] fib6_nh_init+0x3d8/0x1580 [ 7108.852650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7108.852650][ T254] ip6_route_add+0x1c/0x140 [ 7108.852650][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7108.852650][ T254] inet6_addr_add+0x4f8/0xa40 [ 7108.852650][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7108.852650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7108.852650][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.852650][ T254] netlink_unicast+0x449/0x710 [ 7108.852650][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.852650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.852650][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.852650][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.852650][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.852650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7108.852650][ T254] [ 7108.854997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.854997][ T254] netdev_get_by_index+0x5e/0x80 [ 7108.854997][ T254] fib6_nh_init+0x3d8/0x1580 [ 7108.854997][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7108.854997][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7108.854997][ T254] ipv6_add_addr+0x411/0x2000 [ 7108.854997][ T254] inet6_addr_add+0x30e/0xa40 [ 7108.854997][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7108.854997][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7108.854997][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.854997][ T254] netlink_unicast+0x449/0x710 [ 7108.854997][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.854997][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.854997][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.854997][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.854997][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.854997][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7108.854997][ T254] [ 7108.857251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.857251][ T254] netdev_get_by_index+0x5e/0x80 [ 7108.857251][ T254] fib6_nh_init+0x3d8/0x1580 [ 7108.857251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7108.857251][ T254] ip6_route_add+0x1c/0x140 [ 7108.857251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7108.857251][ T254] addrconf_add_dev+0xe2/0x170 [ 7108.857251][ T254] inet6_addr_add+0x12f/0xa40 [ 7108.857251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7108.857251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7108.857251][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.857251][ T254] netlink_unicast+0x449/0x710 [ 7108.857251][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.857251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.857251][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.857251][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.857251][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.857251][ T254] [ 7108.859442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.859442][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7108.859442][ T254] ipv6_find_idev+0x102/0x170 [ 7108.859442][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7108.859442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7108.859442][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.859442][ T254] netlink_unicast+0x449/0x710 [ 7108.859442][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.859442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.859442][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.859442][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.859442][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.859442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7108.859442][ T254] [ 7108.861158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7108.861158][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7108.861158][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7108.861158][ T254] ipv6_find_idev+0x102/0x170 [ 7108.861158][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7108.861158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7108.861158][ T254] netlink_rcv_skb+0x130/0x360 [ 7108.861158][ T254] netlink_unicast+0x449/0x710 [ 7108.861158][ T254] netlink_sendmsg+0x723/0xbe0 [ 7108.861158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7108.861158][ T254] ___sys_sendmsg+0xee/0x170 [ 7108.861158][ T254] __sys_sendmsg+0xcd/0x170 [ 7108.861158][ T254] do_syscall_64+0xc6/0x1e0 [ 7108.861158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7108.861158][ T254] [ 7119.007868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7119.008353][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.008353][ T254] dst_init+0x84/0x4a0 [ 7119.008353][ T254] dst_alloc+0x97/0x150 [ 7119.008353][ T254] ip6_dst_alloc+0x23/0x90 [ 7119.008353][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7119.008353][ T254] ip6_pol_route+0x56f/0x840 [ 7119.008353][ T254] fib6_rule_lookup+0x334/0x630 [ 7119.008353][ T254] ip6_route_output_flags+0x259/0x480 [ 7119.008353][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7119.008353][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7119.008353][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.008353][ T254] netlink_unicast+0x449/0x710 [ 7119.008353][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.008353][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.008353][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.008353][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.008353][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.008353][ T254] [ 7119.010558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.010558][ T254] netdev_get_by_index+0x5e/0x80 [ 7119.010558][ T254] fib6_nh_init+0x3d8/0x1580 [ 7119.010558][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7119.010558][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7119.010558][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7119.010558][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7119.010558][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7119.010558][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7119.010558][ T254] addrconf_dad_begin+0x310/0x670 [ 7119.010558][ T254] addrconf_dad_work+0x10b/0xab0 [ 7119.010558][ T254] process_one_work+0x84d/0x18a0 [ 7119.010558][ T254] worker_thread+0x587/0xd30 [ 7119.010558][ T254] kthread+0x28a/0x350 [ 7119.010558][ T254] ret_from_fork+0x31/0x70 [ 7119.010558][ T254] ret_from_fork_asm+0x1a/0x30 [ 7119.010558][ T254] [ 7119.012733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.012733][ T254] netdev_get_by_index+0x5e/0x80 [ 7119.012733][ T254] fib6_nh_init+0x3d8/0x1580 [ 7119.012733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7119.012733][ T254] ip6_route_add+0x1c/0x140 [ 7119.012733][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7119.012733][ T254] inet6_addr_add+0x4f8/0xa40 [ 7119.012733][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7119.012733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7119.012733][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.012733][ T254] netlink_unicast+0x449/0x710 [ 7119.012733][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.012733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.012733][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.012733][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.012733][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.012733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7119.012733][ T254] [ 7119.015000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.015000][ T254] netdev_get_by_index+0x5e/0x80 [ 7119.015000][ T254] fib6_nh_init+0x3d8/0x1580 [ 7119.015000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7119.015000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7119.015000][ T254] ipv6_add_addr+0x411/0x2000 [ 7119.015000][ T254] inet6_addr_add+0x30e/0xa40 [ 7119.015000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7119.015000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7119.015000][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.015000][ T254] netlink_unicast+0x449/0x710 [ 7119.015000][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.015000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.015000][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.015000][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.015000][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.015000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7119.015000][ T254] [ 7119.017251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.017251][ T254] netdev_get_by_index+0x5e/0x80 [ 7119.017251][ T254] fib6_nh_init+0x3d8/0x1580 [ 7119.017251][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7119.017251][ T254] ip6_route_add+0x1c/0x140 [ 7119.017251][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7119.017251][ T254] addrconf_add_dev+0xe2/0x170 [ 7119.017251][ T254] inet6_addr_add+0x12f/0xa40 [ 7119.017251][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7119.017251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7119.017251][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.017251][ T254] netlink_unicast+0x449/0x710 [ 7119.017251][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.017251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.017251][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.017251][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.017251][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.017251][ T254] [ 7119.019460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.019460][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7119.019460][ T254] ipv6_find_idev+0x102/0x170 [ 7119.019460][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7119.019460][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7119.019460][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.019460][ T254] netlink_unicast+0x449/0x710 [ 7119.019460][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.019460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.019460][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.019460][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.019460][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.019460][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7119.019460][ T254] [ 7119.021194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7119.021194][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7119.021194][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7119.021194][ T254] ipv6_find_idev+0x102/0x170 [ 7119.021194][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7119.021194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7119.021194][ T254] netlink_rcv_skb+0x130/0x360 [ 7119.021194][ T254] netlink_unicast+0x449/0x710 [ 7119.021194][ T254] netlink_sendmsg+0x723/0xbe0 [ 7119.021194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7119.021194][ T254] ___sys_sendmsg+0xee/0x170 [ 7119.021194][ T254] __sys_sendmsg+0xcd/0x170 [ 7119.021194][ T254] do_syscall_64+0xc6/0x1e0 [ 7119.021194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7119.021194][ T254] [ 7129.271845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7129.272323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.272323][ T254] dst_init+0x84/0x4a0 [ 7129.272323][ T254] dst_alloc+0x97/0x150 [ 7129.272323][ T254] ip6_dst_alloc+0x23/0x90 [ 7129.272323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7129.272323][ T254] ip6_pol_route+0x56f/0x840 [ 7129.272323][ T254] fib6_rule_lookup+0x334/0x630 [ 7129.272323][ T254] ip6_route_output_flags+0x259/0x480 [ 7129.272323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7129.272323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7129.272323][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.272323][ T254] netlink_unicast+0x449/0x710 [ 7129.272323][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.272323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.272323][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.272323][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.272323][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.272323][ T254] [ 7129.274562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.274562][ T254] netdev_get_by_index+0x5e/0x80 [ 7129.274562][ T254] fib6_nh_init+0x3d8/0x1580 [ 7129.274562][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7129.274562][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7129.274562][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7129.274562][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7129.274562][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7129.274562][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7129.274562][ T254] addrconf_dad_begin+0x310/0x670 [ 7129.274562][ T254] addrconf_dad_work+0x10b/0xab0 [ 7129.274562][ T254] process_one_work+0x84d/0x18a0 [ 7129.274562][ T254] worker_thread+0x587/0xd30 [ 7129.274562][ T254] kthread+0x28a/0x350 [ 7129.274562][ T254] ret_from_fork+0x31/0x70 [ 7129.274562][ T254] ret_from_fork_asm+0x1a/0x30 [ 7129.274562][ T254] [ 7129.276722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.276722][ T254] netdev_get_by_index+0x5e/0x80 [ 7129.276722][ T254] fib6_nh_init+0x3d8/0x1580 [ 7129.276722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7129.276722][ T254] ip6_route_add+0x1c/0x140 [ 7129.276722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7129.276722][ T254] inet6_addr_add+0x4f8/0xa40 [ 7129.276722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7129.276722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7129.276722][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.276722][ T254] netlink_unicast+0x449/0x710 [ 7129.276722][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.276722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.276722][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.276722][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.276722][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.276722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7129.276722][ T254] [ 7129.278980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.278980][ T254] netdev_get_by_index+0x5e/0x80 [ 7129.278980][ T254] fib6_nh_init+0x3d8/0x1580 [ 7129.278980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7129.278980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7129.278980][ T254] ipv6_add_addr+0x411/0x2000 [ 7129.278980][ T254] inet6_addr_add+0x30e/0xa40 [ 7129.278980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7129.278980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7129.278980][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.278980][ T254] netlink_unicast+0x449/0x710 [ 7129.278980][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.278980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.278980][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.278980][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.278980][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.278980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7129.278980][ T254] [ 7129.281316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.281316][ T254] netdev_get_by_index+0x5e/0x80 [ 7129.281316][ T254] fib6_nh_init+0x3d8/0x1580 [ 7129.281316][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7129.281316][ T254] ip6_route_add+0x1c/0x140 [ 7129.281316][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7129.281316][ T254] addrconf_add_dev+0xe2/0x170 [ 7129.281316][ T254] inet6_addr_add+0x12f/0xa40 [ 7129.281316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7129.281316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7129.281316][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.281316][ T254] netlink_unicast+0x449/0x710 [ 7129.281316][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.281316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.281316][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.281316][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.281316][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.281316][ T254] [ 7129.283541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.283541][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7129.283541][ T254] ipv6_find_idev+0x102/0x170 [ 7129.283541][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7129.283541][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7129.283541][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.283541][ T254] netlink_unicast+0x449/0x710 [ 7129.283541][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.283541][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.283541][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.283541][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.283541][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.283541][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7129.283541][ T254] [ 7129.285283][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7129.285283][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7129.285283][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7129.285283][ T254] ipv6_find_idev+0x102/0x170 [ 7129.285283][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7129.285283][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7129.285283][ T254] netlink_rcv_skb+0x130/0x360 [ 7129.285283][ T254] netlink_unicast+0x449/0x710 [ 7129.285283][ T254] netlink_sendmsg+0x723/0xbe0 [ 7129.285283][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7129.285283][ T254] ___sys_sendmsg+0xee/0x170 [ 7129.285283][ T254] __sys_sendmsg+0xcd/0x170 [ 7129.285283][ T254] do_syscall_64+0xc6/0x1e0 [ 7129.285283][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7129.285283][ T254] [ 7139.535868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7139.536358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.536358][ T254] dst_init+0x84/0x4a0 [ 7139.536358][ T254] dst_alloc+0x97/0x150 [ 7139.536358][ T254] ip6_dst_alloc+0x23/0x90 [ 7139.536358][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7139.536358][ T254] ip6_pol_route+0x56f/0x840 [ 7139.536358][ T254] fib6_rule_lookup+0x334/0x630 [ 7139.536358][ T254] ip6_route_output_flags+0x259/0x480 [ 7139.536358][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7139.536358][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7139.536358][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.536358][ T254] netlink_unicast+0x449/0x710 [ 7139.536358][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.536358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.536358][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.536358][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.536358][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.536358][ T254] [ 7139.538575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.538575][ T254] netdev_get_by_index+0x5e/0x80 [ 7139.538575][ T254] fib6_nh_init+0x3d8/0x1580 [ 7139.538575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7139.538575][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7139.538575][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7139.538575][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7139.538575][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7139.538575][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7139.538575][ T254] addrconf_dad_begin+0x310/0x670 [ 7139.538575][ T254] addrconf_dad_work+0x10b/0xab0 [ 7139.538575][ T254] process_one_work+0x84d/0x18a0 [ 7139.538575][ T254] worker_thread+0x587/0xd30 [ 7139.538575][ T254] kthread+0x28a/0x350 [ 7139.538575][ T254] ret_from_fork+0x31/0x70 [ 7139.538575][ T254] ret_from_fork_asm+0x1a/0x30 [ 7139.538575][ T254] [ 7139.540746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.540746][ T254] netdev_get_by_index+0x5e/0x80 [ 7139.540746][ T254] fib6_nh_init+0x3d8/0x1580 [ 7139.540746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7139.540746][ T254] ip6_route_add+0x1c/0x140 [ 7139.540746][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7139.540746][ T254] inet6_addr_add+0x4f8/0xa40 [ 7139.540746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7139.540746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7139.540746][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.540746][ T254] netlink_unicast+0x449/0x710 [ 7139.540746][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.540746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.540746][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.540746][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.540746][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.540746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7139.540746][ T254] [ 7139.543009][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.543009][ T254] netdev_get_by_index+0x5e/0x80 [ 7139.543009][ T254] fib6_nh_init+0x3d8/0x1580 [ 7139.543009][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7139.543009][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7139.543009][ T254] ipv6_add_addr+0x411/0x2000 [ 7139.543009][ T254] inet6_addr_add+0x30e/0xa40 [ 7139.543009][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7139.543009][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7139.543009][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.543009][ T254] netlink_unicast+0x449/0x710 [ 7139.543009][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.543009][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.543009][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.543009][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.543009][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.543009][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7139.543009][ T254] [ 7139.545289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.545289][ T254] netdev_get_by_index+0x5e/0x80 [ 7139.545289][ T254] fib6_nh_init+0x3d8/0x1580 [ 7139.545289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7139.545289][ T254] ip6_route_add+0x1c/0x140 [ 7139.545289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7139.545289][ T254] addrconf_add_dev+0xe2/0x170 [ 7139.545289][ T254] inet6_addr_add+0x12f/0xa40 [ 7139.545289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7139.545289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7139.545289][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.545289][ T254] netlink_unicast+0x449/0x710 [ 7139.545289][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.545289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.545289][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.545289][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.545289][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.545289][ T254] [ 7139.547509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.547509][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7139.547509][ T254] ipv6_find_idev+0x102/0x170 [ 7139.547509][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7139.547509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7139.547509][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.547509][ T254] netlink_unicast+0x449/0x710 [ 7139.547509][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.547509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.547509][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.547509][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.547509][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.547509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7139.547509][ T254] [ 7139.549246][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7139.549246][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7139.549246][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7139.549246][ T254] ipv6_find_idev+0x102/0x170 [ 7139.549246][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7139.549246][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7139.549246][ T254] netlink_rcv_skb+0x130/0x360 [ 7139.549246][ T254] netlink_unicast+0x449/0x710 [ 7139.549246][ T254] netlink_sendmsg+0x723/0xbe0 [ 7139.549246][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7139.549246][ T254] ___sys_sendmsg+0xee/0x170 [ 7139.549246][ T254] __sys_sendmsg+0xcd/0x170 [ 7139.549246][ T254] do_syscall_64+0xc6/0x1e0 [ 7139.549246][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7139.549246][ T254] [ 7149.551839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7149.552331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.552331][ T254] dst_init+0x84/0x4a0 [ 7149.552331][ T254] dst_alloc+0x97/0x150 [ 7149.552331][ T254] ip6_dst_alloc+0x23/0x90 [ 7149.552331][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7149.552331][ T254] ip6_pol_route+0x56f/0x840 [ 7149.552331][ T254] fib6_rule_lookup+0x334/0x630 [ 7149.552331][ T254] ip6_route_output_flags+0x259/0x480 [ 7149.552331][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7149.552331][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7149.552331][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.552331][ T254] netlink_unicast+0x449/0x710 [ 7149.552331][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.552331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.552331][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.552331][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.552331][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.552331][ T254] [ 7149.554563][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.554563][ T254] netdev_get_by_index+0x5e/0x80 [ 7149.554563][ T254] fib6_nh_init+0x3d8/0x1580 [ 7149.554563][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7149.554563][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7149.554563][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7149.554563][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7149.554563][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7149.554563][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7149.554563][ T254] addrconf_dad_begin+0x310/0x670 [ 7149.554563][ T254] addrconf_dad_work+0x10b/0xab0 [ 7149.554563][ T254] process_one_work+0x84d/0x18a0 [ 7149.554563][ T254] worker_thread+0x587/0xd30 [ 7149.554563][ T254] kthread+0x28a/0x350 [ 7149.554563][ T254] ret_from_fork+0x31/0x70 [ 7149.554563][ T254] ret_from_fork_asm+0x1a/0x30 [ 7149.554563][ T254] [ 7149.556718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.556718][ T254] netdev_get_by_index+0x5e/0x80 [ 7149.556718][ T254] fib6_nh_init+0x3d8/0x1580 [ 7149.556718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7149.556718][ T254] ip6_route_add+0x1c/0x140 [ 7149.556718][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7149.556718][ T254] inet6_addr_add+0x4f8/0xa40 [ 7149.556718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7149.556718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7149.556718][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.556718][ T254] netlink_unicast+0x449/0x710 [ 7149.556718][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.556718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.556718][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.556718][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.556718][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.556718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7149.556718][ T254] [ 7149.558978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.558978][ T254] netdev_get_by_index+0x5e/0x80 [ 7149.558978][ T254] fib6_nh_init+0x3d8/0x1580 [ 7149.558978][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7149.558978][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7149.558978][ T254] ipv6_add_addr+0x411/0x2000 [ 7149.558978][ T254] inet6_addr_add+0x30e/0xa40 [ 7149.558978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7149.558978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7149.558978][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.558978][ T254] netlink_unicast+0x449/0x710 [ 7149.558978][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.558978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.558978][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.558978][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.558978][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.558978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7149.558978][ T254] [ 7149.561241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.561241][ T254] netdev_get_by_index+0x5e/0x80 [ 7149.561241][ T254] fib6_nh_init+0x3d8/0x1580 [ 7149.561241][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7149.561241][ T254] ip6_route_add+0x1c/0x140 [ 7149.561241][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7149.561241][ T254] addrconf_add_dev+0xe2/0x170 [ 7149.561241][ T254] inet6_addr_add+0x12f/0xa40 [ 7149.561241][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7149.561241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7149.561241][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.561241][ T254] netlink_unicast+0x449/0x710 [ 7149.561241][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.561241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.561241][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.561241][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.561241][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.561241][ T254] [ 7149.563463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.563463][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7149.563463][ T254] ipv6_find_idev+0x102/0x170 [ 7149.563463][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7149.563463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7149.563463][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.563463][ T254] netlink_unicast+0x449/0x710 [ 7149.563463][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.563463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.563463][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.563463][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.563463][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.563463][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7149.563463][ T254] [ 7149.565220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7149.565220][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7149.565220][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7149.565220][ T254] ipv6_find_idev+0x102/0x170 [ 7149.565220][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7149.565220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7149.565220][ T254] netlink_rcv_skb+0x130/0x360 [ 7149.565220][ T254] netlink_unicast+0x449/0x710 [ 7149.565220][ T254] netlink_sendmsg+0x723/0xbe0 [ 7149.565220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7149.565220][ T254] ___sys_sendmsg+0xee/0x170 [ 7149.565220][ T254] __sys_sendmsg+0xcd/0x170 [ 7149.565220][ T254] do_syscall_64+0xc6/0x1e0 [ 7149.565220][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7149.565220][ T254] [ 7159.583865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7159.584367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.584367][ T254] dst_init+0x84/0x4a0 [ 7159.584367][ T254] dst_alloc+0x97/0x150 [ 7159.584367][ T254] ip6_dst_alloc+0x23/0x90 [ 7159.584367][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7159.584367][ T254] ip6_pol_route+0x56f/0x840 [ 7159.584367][ T254] fib6_rule_lookup+0x334/0x630 [ 7159.584367][ T254] ip6_route_output_flags+0x259/0x480 [ 7159.584367][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7159.584367][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7159.584367][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.584367][ T254] netlink_unicast+0x449/0x710 [ 7159.584367][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.584367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.584367][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.584367][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.584367][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.584367][ T254] [ 7159.586582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.586582][ T254] netdev_get_by_index+0x5e/0x80 [ 7159.586582][ T254] fib6_nh_init+0x3d8/0x1580 [ 7159.586582][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7159.586582][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7159.586582][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7159.586582][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7159.586582][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7159.586582][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7159.586582][ T254] addrconf_dad_begin+0x310/0x670 [ 7159.586582][ T254] addrconf_dad_work+0x10b/0xab0 [ 7159.586582][ T254] process_one_work+0x84d/0x18a0 [ 7159.586582][ T254] worker_thread+0x587/0xd30 [ 7159.586582][ T254] kthread+0x28a/0x350 [ 7159.586582][ T254] ret_from_fork+0x31/0x70 [ 7159.586582][ T254] ret_from_fork_asm+0x1a/0x30 [ 7159.586582][ T254] [ 7159.588748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.588748][ T254] netdev_get_by_index+0x5e/0x80 [ 7159.588748][ T254] fib6_nh_init+0x3d8/0x1580 [ 7159.588748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7159.588748][ T254] ip6_route_add+0x1c/0x140 [ 7159.588748][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7159.588748][ T254] inet6_addr_add+0x4f8/0xa40 [ 7159.588748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7159.588748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7159.588748][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.588748][ T254] netlink_unicast+0x449/0x710 [ 7159.588748][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.588748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.588748][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.588748][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.588748][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.588748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7159.588748][ T254] [ 7159.591007][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.591007][ T254] netdev_get_by_index+0x5e/0x80 [ 7159.591007][ T254] fib6_nh_init+0x3d8/0x1580 [ 7159.591007][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7159.591007][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7159.591007][ T254] ipv6_add_addr+0x411/0x2000 [ 7159.591007][ T254] inet6_addr_add+0x30e/0xa40 [ 7159.591007][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7159.591007][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7159.591007][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.591007][ T254] netlink_unicast+0x449/0x710 [ 7159.591007][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.591007][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.591007][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.591007][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.591007][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.591007][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7159.591007][ T254] [ 7159.593272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.593272][ T254] netdev_get_by_index+0x5e/0x80 [ 7159.593272][ T254] fib6_nh_init+0x3d8/0x1580 [ 7159.593272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7159.593272][ T254] ip6_route_add+0x1c/0x140 [ 7159.593272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7159.593272][ T254] addrconf_add_dev+0xe2/0x170 [ 7159.593272][ T254] inet6_addr_add+0x12f/0xa40 [ 7159.593272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7159.593272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7159.593272][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.593272][ T254] netlink_unicast+0x449/0x710 [ 7159.593272][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.593272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.593272][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.593272][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.593272][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.593272][ T254] [ 7159.595501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.595501][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7159.595501][ T254] ipv6_find_idev+0x102/0x170 [ 7159.595501][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7159.595501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7159.595501][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.595501][ T254] netlink_unicast+0x449/0x710 [ 7159.595501][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.595501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.595501][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.595501][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.595501][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.595501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7159.595501][ T254] [ 7159.597245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7159.597245][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7159.597245][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7159.597245][ T254] ipv6_find_idev+0x102/0x170 [ 7159.597245][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7159.597245][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7159.597245][ T254] netlink_rcv_skb+0x130/0x360 [ 7159.597245][ T254] netlink_unicast+0x449/0x710 [ 7159.597245][ T254] netlink_sendmsg+0x723/0xbe0 [ 7159.597245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7159.597245][ T254] ___sys_sendmsg+0xee/0x170 [ 7159.597245][ T254] __sys_sendmsg+0xcd/0x170 [ 7159.597245][ T254] do_syscall_64+0xc6/0x1e0 [ 7159.597245][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7159.597245][ T254] [ 7169.655788][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7169.656270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.656270][ T254] dst_init+0x84/0x4a0 [ 7169.656270][ T254] dst_alloc+0x97/0x150 [ 7169.656270][ T254] ip6_dst_alloc+0x23/0x90 [ 7169.656270][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7169.656270][ T254] ip6_pol_route+0x56f/0x840 [ 7169.656270][ T254] fib6_rule_lookup+0x334/0x630 [ 7169.656270][ T254] ip6_route_output_flags+0x259/0x480 [ 7169.656270][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7169.656270][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7169.656270][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.656270][ T254] netlink_unicast+0x449/0x710 [ 7169.656270][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.656270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.656270][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.656270][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.656270][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.656270][ T254] [ 7169.658496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.658496][ T254] netdev_get_by_index+0x5e/0x80 [ 7169.658496][ T254] fib6_nh_init+0x3d8/0x1580 [ 7169.658496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7169.658496][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7169.658496][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7169.658496][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7169.658496][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7169.658496][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7169.658496][ T254] addrconf_dad_begin+0x310/0x670 [ 7169.658496][ T254] addrconf_dad_work+0x10b/0xab0 [ 7169.658496][ T254] process_one_work+0x84d/0x18a0 [ 7169.658496][ T254] worker_thread+0x587/0xd30 [ 7169.658496][ T254] kthread+0x28a/0x350 [ 7169.658496][ T254] ret_from_fork+0x31/0x70 [ 7169.658496][ T254] ret_from_fork_asm+0x1a/0x30 [ 7169.658496][ T254] [ 7169.661195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.661195][ T254] netdev_get_by_index+0x5e/0x80 [ 7169.661195][ T254] fib6_nh_init+0x3d8/0x1580 [ 7169.661195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7169.661195][ T254] ip6_route_add+0x1c/0x140 [ 7169.661195][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7169.661195][ T254] inet6_addr_add+0x4f8/0xa40 [ 7169.661195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7169.661195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7169.661195][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.661195][ T254] netlink_unicast+0x449/0x710 [ 7169.661195][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.661195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.661195][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.661195][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.661195][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.661195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7169.661195][ T254] [ 7169.663478][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.663478][ T254] netdev_get_by_index+0x5e/0x80 [ 7169.663478][ T254] fib6_nh_init+0x3d8/0x1580 [ 7169.663478][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7169.663478][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7169.663478][ T254] ipv6_add_addr+0x411/0x2000 [ 7169.663478][ T254] inet6_addr_add+0x30e/0xa40 [ 7169.663478][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7169.663478][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7169.663478][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.663478][ T254] netlink_unicast+0x449/0x710 [ 7169.663478][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.663478][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.663478][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.663478][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.663478][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.663478][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7169.663478][ T254] [ 7169.666135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.666135][ T254] netdev_get_by_index+0x5e/0x80 [ 7169.666135][ T254] fib6_nh_init+0x3d8/0x1580 [ 7169.666135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7169.666135][ T254] ip6_route_add+0x1c/0x140 [ 7169.666135][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7169.666135][ T254] addrconf_add_dev+0xe2/0x170 [ 7169.666135][ T254] inet6_addr_add+0x12f/0xa40 [ 7169.666135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7169.666135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7169.666135][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.666135][ T254] netlink_unicast+0x449/0x710 [ 7169.666135][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.666135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.666135][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.666135][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.666135][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.666135][ T254] [ 7169.668375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.668375][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7169.668375][ T254] ipv6_find_idev+0x102/0x170 [ 7169.668375][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7169.668375][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7169.668375][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.668375][ T254] netlink_unicast+0x449/0x710 [ 7169.668375][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.668375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.668375][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.668375][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.668375][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.668375][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7169.668375][ T254] [ 7169.670125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7169.670125][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7169.670125][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7169.670125][ T254] ipv6_find_idev+0x102/0x170 [ 7169.670125][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7169.670125][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7169.670125][ T254] netlink_rcv_skb+0x130/0x360 [ 7169.670125][ T254] netlink_unicast+0x449/0x710 [ 7169.670125][ T254] netlink_sendmsg+0x723/0xbe0 [ 7169.670125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7169.670125][ T254] ___sys_sendmsg+0xee/0x170 [ 7169.670125][ T254] __sys_sendmsg+0xcd/0x170 [ 7169.670125][ T254] do_syscall_64+0xc6/0x1e0 [ 7169.670125][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7169.670125][ T254] [ 7179.911836][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7179.912312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.912312][ T254] dst_init+0x84/0x4a0 [ 7179.912312][ T254] dst_alloc+0x97/0x150 [ 7179.912312][ T254] ip6_dst_alloc+0x23/0x90 [ 7179.912312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7179.912312][ T254] ip6_pol_route+0x56f/0x840 [ 7179.912312][ T254] fib6_rule_lookup+0x334/0x630 [ 7179.912312][ T254] ip6_route_output_flags+0x259/0x480 [ 7179.912312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7179.912312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7179.912312][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.912312][ T254] netlink_unicast+0x449/0x710 [ 7179.912312][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.912312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.912312][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.912312][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.912312][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.912312][ T254] [ 7179.914549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.914549][ T254] netdev_get_by_index+0x5e/0x80 [ 7179.914549][ T254] fib6_nh_init+0x3d8/0x1580 [ 7179.914549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7179.914549][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7179.914549][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7179.914549][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7179.914549][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7179.914549][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7179.914549][ T254] addrconf_dad_begin+0x310/0x670 [ 7179.914549][ T254] addrconf_dad_work+0x10b/0xab0 [ 7179.914549][ T254] process_one_work+0x84d/0x18a0 [ 7179.914549][ T254] worker_thread+0x587/0xd30 [ 7179.914549][ T254] kthread+0x28a/0x350 [ 7179.914549][ T254] ret_from_fork+0x31/0x70 [ 7179.914549][ T254] ret_from_fork_asm+0x1a/0x30 [ 7179.914549][ T254] [ 7179.916713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.916713][ T254] netdev_get_by_index+0x5e/0x80 [ 7179.916713][ T254] fib6_nh_init+0x3d8/0x1580 [ 7179.916713][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7179.916713][ T254] ip6_route_add+0x1c/0x140 [ 7179.916713][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7179.916713][ T254] inet6_addr_add+0x4f8/0xa40 [ 7179.916713][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7179.916713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7179.916713][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.916713][ T254] netlink_unicast+0x449/0x710 [ 7179.916713][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.916713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.916713][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.916713][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.916713][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.916713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7179.916713][ T254] [ 7179.918975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.918975][ T254] netdev_get_by_index+0x5e/0x80 [ 7179.918975][ T254] fib6_nh_init+0x3d8/0x1580 [ 7179.918975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7179.918975][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7179.918975][ T254] ipv6_add_addr+0x411/0x2000 [ 7179.918975][ T254] inet6_addr_add+0x30e/0xa40 [ 7179.918975][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7179.918975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7179.918975][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.918975][ T254] netlink_unicast+0x449/0x710 [ 7179.918975][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.918975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.918975][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.918975][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.918975][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.918975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7179.918975][ T254] [ 7179.921231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.921231][ T254] netdev_get_by_index+0x5e/0x80 [ 7179.921231][ T254] fib6_nh_init+0x3d8/0x1580 [ 7179.921231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7179.921231][ T254] ip6_route_add+0x1c/0x140 [ 7179.921231][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7179.921231][ T254] addrconf_add_dev+0xe2/0x170 [ 7179.921231][ T254] inet6_addr_add+0x12f/0xa40 [ 7179.921231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7179.921231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7179.921231][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.921231][ T254] netlink_unicast+0x449/0x710 [ 7179.921231][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.921231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.921231][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.921231][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.921231][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.921231][ T254] [ 7179.923450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.923450][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7179.923450][ T254] ipv6_find_idev+0x102/0x170 [ 7179.923450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7179.923450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7179.923450][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.923450][ T254] netlink_unicast+0x449/0x710 [ 7179.923450][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.923450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.923450][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.923450][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.923450][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.923450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7179.923450][ T254] [ 7179.925196][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7179.925196][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7179.925196][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7179.925196][ T254] ipv6_find_idev+0x102/0x170 [ 7179.925196][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7179.925196][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7179.925196][ T254] netlink_rcv_skb+0x130/0x360 [ 7179.925196][ T254] netlink_unicast+0x449/0x710 [ 7179.925196][ T254] netlink_sendmsg+0x723/0xbe0 [ 7179.925196][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7179.925196][ T254] ___sys_sendmsg+0xee/0x170 [ 7179.925196][ T254] __sys_sendmsg+0xcd/0x170 [ 7179.925196][ T254] do_syscall_64+0xc6/0x1e0 [ 7179.925196][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7179.925196][ T254] [ 7190.167869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7190.168352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.168352][ T254] dst_init+0x84/0x4a0 [ 7190.168352][ T254] dst_alloc+0x97/0x150 [ 7190.168352][ T254] ip6_dst_alloc+0x23/0x90 [ 7190.168352][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7190.168352][ T254] ip6_pol_route+0x56f/0x840 [ 7190.168352][ T254] fib6_rule_lookup+0x334/0x630 [ 7190.168352][ T254] ip6_route_output_flags+0x259/0x480 [ 7190.168352][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7190.168352][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7190.168352][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.168352][ T254] netlink_unicast+0x449/0x710 [ 7190.168352][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.168352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.168352][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.168352][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.168352][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.168352][ T254] [ 7190.170559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.170559][ T254] netdev_get_by_index+0x5e/0x80 [ 7190.170559][ T254] fib6_nh_init+0x3d8/0x1580 [ 7190.170559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7190.170559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7190.170559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7190.170559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7190.170559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7190.170559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7190.170559][ T254] addrconf_dad_begin+0x310/0x670 [ 7190.170559][ T254] addrconf_dad_work+0x10b/0xab0 [ 7190.170559][ T254] process_one_work+0x84d/0x18a0 [ 7190.170559][ T254] worker_thread+0x587/0xd30 [ 7190.170559][ T254] kthread+0x28a/0x350 [ 7190.170559][ T254] ret_from_fork+0x31/0x70 [ 7190.170559][ T254] ret_from_fork_asm+0x1a/0x30 [ 7190.170559][ T254] [ 7190.172728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.172728][ T254] netdev_get_by_index+0x5e/0x80 [ 7190.172728][ T254] fib6_nh_init+0x3d8/0x1580 [ 7190.172728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7190.172728][ T254] ip6_route_add+0x1c/0x140 [ 7190.172728][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7190.172728][ T254] inet6_addr_add+0x4f8/0xa40 [ 7190.172728][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7190.172728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7190.172728][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.172728][ T254] netlink_unicast+0x449/0x710 [ 7190.172728][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.172728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.172728][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.172728][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.172728][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.172728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7190.172728][ T254] [ 7190.175008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.175008][ T254] netdev_get_by_index+0x5e/0x80 [ 7190.175008][ T254] fib6_nh_init+0x3d8/0x1580 [ 7190.175008][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7190.175008][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7190.175008][ T254] ipv6_add_addr+0x411/0x2000 [ 7190.175008][ T254] inet6_addr_add+0x30e/0xa40 [ 7190.175008][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7190.175008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7190.175008][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.175008][ T254] netlink_unicast+0x449/0x710 [ 7190.175008][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.175008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.175008][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.175008][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.175008][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.175008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7190.175008][ T254] [ 7190.177282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.177282][ T254] netdev_get_by_index+0x5e/0x80 [ 7190.177282][ T254] fib6_nh_init+0x3d8/0x1580 [ 7190.177282][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7190.177282][ T254] ip6_route_add+0x1c/0x140 [ 7190.177282][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7190.177282][ T254] addrconf_add_dev+0xe2/0x170 [ 7190.177282][ T254] inet6_addr_add+0x12f/0xa40 [ 7190.177282][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7190.177282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7190.177282][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.177282][ T254] netlink_unicast+0x449/0x710 [ 7190.177282][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.177282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.177282][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.177282][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.177282][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.177282][ T254] [ 7190.179506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.179506][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7190.179506][ T254] ipv6_find_idev+0x102/0x170 [ 7190.179506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7190.179506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7190.179506][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.179506][ T254] netlink_unicast+0x449/0x710 [ 7190.179506][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.179506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.179506][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.179506][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.179506][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.179506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7190.179506][ T254] [ 7190.181249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7190.181249][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7190.181249][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7190.181249][ T254] ipv6_find_idev+0x102/0x170 [ 7190.181249][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7190.181249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7190.181249][ T254] netlink_rcv_skb+0x130/0x360 [ 7190.181249][ T254] netlink_unicast+0x449/0x710 [ 7190.181249][ T254] netlink_sendmsg+0x723/0xbe0 [ 7190.181249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7190.181249][ T254] ___sys_sendmsg+0xee/0x170 [ 7190.181249][ T254] __sys_sendmsg+0xcd/0x170 [ 7190.181249][ T254] do_syscall_64+0xc6/0x1e0 [ 7190.181249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7190.181249][ T254] [ 7200.423846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7200.424357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.424357][ T254] dst_init+0x84/0x4a0 [ 7200.424357][ T254] dst_alloc+0x97/0x150 [ 7200.424357][ T254] ip6_dst_alloc+0x23/0x90 [ 7200.424357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7200.424357][ T254] ip6_pol_route+0x56f/0x840 [ 7200.424357][ T254] fib6_rule_lookup+0x334/0x630 [ 7200.424357][ T254] ip6_route_output_flags+0x259/0x480 [ 7200.424357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7200.424357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7200.424357][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.424357][ T254] netlink_unicast+0x449/0x710 [ 7200.424357][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.424357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.424357][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.424357][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.424357][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.424357][ T254] [ 7200.426588][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.426588][ T254] netdev_get_by_index+0x5e/0x80 [ 7200.426588][ T254] fib6_nh_init+0x3d8/0x1580 [ 7200.426588][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7200.426588][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7200.426588][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7200.426588][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7200.426588][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7200.426588][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7200.426588][ T254] addrconf_dad_begin+0x310/0x670 [ 7200.426588][ T254] addrconf_dad_work+0x10b/0xab0 [ 7200.426588][ T254] process_one_work+0x84d/0x18a0 [ 7200.426588][ T254] worker_thread+0x587/0xd30 [ 7200.426588][ T254] kthread+0x28a/0x350 [ 7200.426588][ T254] ret_from_fork+0x31/0x70 [ 7200.426588][ T254] ret_from_fork_asm+0x1a/0x30 [ 7200.426588][ T254] [ 7200.428762][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.428762][ T254] netdev_get_by_index+0x5e/0x80 [ 7200.428762][ T254] fib6_nh_init+0x3d8/0x1580 [ 7200.428762][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7200.428762][ T254] ip6_route_add+0x1c/0x140 [ 7200.428762][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7200.428762][ T254] inet6_addr_add+0x4f8/0xa40 [ 7200.428762][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7200.428762][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7200.428762][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.428762][ T254] netlink_unicast+0x449/0x710 [ 7200.428762][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.428762][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.428762][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.428762][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.428762][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.428762][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7200.428762][ T254] [ 7200.431033][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.431033][ T254] netdev_get_by_index+0x5e/0x80 [ 7200.431033][ T254] fib6_nh_init+0x3d8/0x1580 [ 7200.431033][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7200.431033][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7200.431033][ T254] ipv6_add_addr+0x411/0x2000 [ 7200.431033][ T254] inet6_addr_add+0x30e/0xa40 [ 7200.431033][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7200.431033][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7200.431033][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.431033][ T254] netlink_unicast+0x449/0x710 [ 7200.431033][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.431033][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.431033][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.431033][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.431033][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.431033][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7200.431033][ T254] [ 7200.433305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.433305][ T254] netdev_get_by_index+0x5e/0x80 [ 7200.433305][ T254] fib6_nh_init+0x3d8/0x1580 [ 7200.433305][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7200.433305][ T254] ip6_route_add+0x1c/0x140 [ 7200.433305][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7200.433305][ T254] addrconf_add_dev+0xe2/0x170 [ 7200.433305][ T254] inet6_addr_add+0x12f/0xa40 [ 7200.433305][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7200.433305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7200.433305][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.433305][ T254] netlink_unicast+0x449/0x710 [ 7200.433305][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.433305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.433305][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.433305][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.433305][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.433305][ T254] [ 7200.435534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.435534][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7200.435534][ T254] ipv6_find_idev+0x102/0x170 [ 7200.435534][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7200.435534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7200.435534][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.435534][ T254] netlink_unicast+0x449/0x710 [ 7200.435534][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.435534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.435534][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.435534][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.435534][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.435534][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7200.435534][ T254] [ 7200.437274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7200.437274][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7200.437274][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7200.437274][ T254] ipv6_find_idev+0x102/0x170 [ 7200.437274][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7200.437274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7200.437274][ T254] netlink_rcv_skb+0x130/0x360 [ 7200.437274][ T254] netlink_unicast+0x449/0x710 [ 7200.437274][ T254] netlink_sendmsg+0x723/0xbe0 [ 7200.437274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7200.437274][ T254] ___sys_sendmsg+0xee/0x170 [ 7200.437274][ T254] __sys_sendmsg+0xcd/0x170 [ 7200.437274][ T254] do_syscall_64+0xc6/0x1e0 [ 7200.437274][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7200.437274][ T254] [ 7210.679783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7210.680265][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.680265][ T254] dst_init+0x84/0x4a0 [ 7210.680265][ T254] dst_alloc+0x97/0x150 [ 7210.680265][ T254] ip6_dst_alloc+0x23/0x90 [ 7210.680265][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7210.680265][ T254] ip6_pol_route+0x56f/0x840 [ 7210.680265][ T254] fib6_rule_lookup+0x334/0x630 [ 7210.680265][ T254] ip6_route_output_flags+0x259/0x480 [ 7210.680265][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7210.680265][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7210.680265][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.680265][ T254] netlink_unicast+0x449/0x710 [ 7210.680265][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.680265][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.680265][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.680265][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.680265][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.680265][ T254] [ 7210.682510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.682510][ T254] netdev_get_by_index+0x5e/0x80 [ 7210.682510][ T254] fib6_nh_init+0x3d8/0x1580 [ 7210.682510][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7210.682510][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7210.682510][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7210.682510][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7210.682510][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7210.682510][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7210.682510][ T254] addrconf_dad_begin+0x310/0x670 [ 7210.682510][ T254] addrconf_dad_work+0x10b/0xab0 [ 7210.682510][ T254] process_one_work+0x84d/0x18a0 [ 7210.682510][ T254] worker_thread+0x587/0xd30 [ 7210.682510][ T254] kthread+0x28a/0x350 [ 7210.682510][ T254] ret_from_fork+0x31/0x70 [ 7210.682510][ T254] ret_from_fork_asm+0x1a/0x30 [ 7210.682510][ T254] [ 7210.684692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.684692][ T254] netdev_get_by_index+0x5e/0x80 [ 7210.684692][ T254] fib6_nh_init+0x3d8/0x1580 [ 7210.684692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7210.684692][ T254] ip6_route_add+0x1c/0x140 [ 7210.684692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7210.684692][ T254] inet6_addr_add+0x4f8/0xa40 [ 7210.684692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7210.684692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7210.684692][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.684692][ T254] netlink_unicast+0x449/0x710 [ 7210.684692][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.684692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.684692][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.684692][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.684692][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.684692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7210.684692][ T254] [ 7210.686964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.686964][ T254] netdev_get_by_index+0x5e/0x80 [ 7210.686964][ T254] fib6_nh_init+0x3d8/0x1580 [ 7210.686964][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7210.686964][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7210.686964][ T254] ipv6_add_addr+0x411/0x2000 [ 7210.686964][ T254] inet6_addr_add+0x30e/0xa40 [ 7210.686964][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7210.686964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7210.686964][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.686964][ T254] netlink_unicast+0x449/0x710 [ 7210.686964][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.686964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.686964][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.686964][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.686964][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.686964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7210.686964][ T254] [ 7210.689229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.689229][ T254] netdev_get_by_index+0x5e/0x80 [ 7210.689229][ T254] fib6_nh_init+0x3d8/0x1580 [ 7210.689229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7210.689229][ T254] ip6_route_add+0x1c/0x140 [ 7210.689229][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7210.689229][ T254] addrconf_add_dev+0xe2/0x170 [ 7210.689229][ T254] inet6_addr_add+0x12f/0xa40 [ 7210.689229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7210.689229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7210.689229][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.689229][ T254] netlink_unicast+0x449/0x710 [ 7210.689229][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.689229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.689229][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.689229][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.689229][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.689229][ T254] [ 7210.691466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.691466][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7210.691466][ T254] ipv6_find_idev+0x102/0x170 [ 7210.691466][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7210.691466][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7210.691466][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.691466][ T254] netlink_unicast+0x449/0x710 [ 7210.691466][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.691466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.691466][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.691466][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.691466][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.691466][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7210.691466][ T254] [ 7210.693209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7210.693209][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7210.693209][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7210.693209][ T254] ipv6_find_idev+0x102/0x170 [ 7210.693209][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7210.693209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7210.693209][ T254] netlink_rcv_skb+0x130/0x360 [ 7210.693209][ T254] netlink_unicast+0x449/0x710 [ 7210.693209][ T254] netlink_sendmsg+0x723/0xbe0 [ 7210.693209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7210.693209][ T254] ___sys_sendmsg+0xee/0x170 [ 7210.693209][ T254] __sys_sendmsg+0xcd/0x170 [ 7210.693209][ T254] do_syscall_64+0xc6/0x1e0 [ 7210.693209][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7210.693209][ T254] [ 7220.807844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7220.808332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.808332][ T254] dst_init+0x84/0x4a0 [ 7220.808332][ T254] dst_alloc+0x97/0x150 [ 7220.808332][ T254] ip6_dst_alloc+0x23/0x90 [ 7220.808332][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7220.808332][ T254] ip6_pol_route+0x56f/0x840 [ 7220.808332][ T254] fib6_rule_lookup+0x334/0x630 [ 7220.808332][ T254] ip6_route_output_flags+0x259/0x480 [ 7220.808332][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7220.808332][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7220.808332][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.808332][ T254] netlink_unicast+0x449/0x710 [ 7220.808332][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.808332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.808332][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.808332][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.808332][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.808332][ T254] [ 7220.810546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.810546][ T254] netdev_get_by_index+0x5e/0x80 [ 7220.810546][ T254] fib6_nh_init+0x3d8/0x1580 [ 7220.810546][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7220.810546][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7220.810546][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7220.810546][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7220.810546][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7220.810546][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7220.810546][ T254] addrconf_dad_begin+0x310/0x670 [ 7220.810546][ T254] addrconf_dad_work+0x10b/0xab0 [ 7220.810546][ T254] process_one_work+0x84d/0x18a0 [ 7220.810546][ T254] worker_thread+0x587/0xd30 [ 7220.810546][ T254] kthread+0x28a/0x350 [ 7220.810546][ T254] ret_from_fork+0x31/0x70 [ 7220.810546][ T254] ret_from_fork_asm+0x1a/0x30 [ 7220.810546][ T254] [ 7220.812716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.812716][ T254] netdev_get_by_index+0x5e/0x80 [ 7220.812716][ T254] fib6_nh_init+0x3d8/0x1580 [ 7220.812716][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7220.812716][ T254] ip6_route_add+0x1c/0x140 [ 7220.812716][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7220.812716][ T254] inet6_addr_add+0x4f8/0xa40 [ 7220.812716][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7220.812716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7220.812716][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.812716][ T254] netlink_unicast+0x449/0x710 [ 7220.812716][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.812716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.812716][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.812716][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.812716][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.812716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7220.812716][ T254] [ 7220.815031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.815031][ T254] netdev_get_by_index+0x5e/0x80 [ 7220.815031][ T254] fib6_nh_init+0x3d8/0x1580 [ 7220.815031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7220.815031][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7220.815031][ T254] ipv6_add_addr+0x411/0x2000 [ 7220.815031][ T254] inet6_addr_add+0x30e/0xa40 [ 7220.815031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7220.815031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7220.815031][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.815031][ T254] netlink_unicast+0x449/0x710 [ 7220.815031][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.815031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.815031][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.815031][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.815031][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.815031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7220.815031][ T254] [ 7220.817292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.817292][ T254] netdev_get_by_index+0x5e/0x80 [ 7220.817292][ T254] fib6_nh_init+0x3d8/0x1580 [ 7220.817292][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7220.817292][ T254] ip6_route_add+0x1c/0x140 [ 7220.817292][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7220.817292][ T254] addrconf_add_dev+0xe2/0x170 [ 7220.817292][ T254] inet6_addr_add+0x12f/0xa40 [ 7220.817292][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7220.817292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7220.817292][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.817292][ T254] netlink_unicast+0x449/0x710 [ 7220.817292][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.817292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.817292][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.817292][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.817292][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.817292][ T254] [ 7220.819509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.819509][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7220.819509][ T254] ipv6_find_idev+0x102/0x170 [ 7220.819509][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7220.819509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7220.819509][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.819509][ T254] netlink_unicast+0x449/0x710 [ 7220.819509][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.819509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.819509][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.819509][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.819509][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.819509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7220.819509][ T254] [ 7220.821244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7220.821244][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7220.821244][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7220.821244][ T254] ipv6_find_idev+0x102/0x170 [ 7220.821244][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7220.821244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7220.821244][ T254] netlink_rcv_skb+0x130/0x360 [ 7220.821244][ T254] netlink_unicast+0x449/0x710 [ 7220.821244][ T254] netlink_sendmsg+0x723/0xbe0 [ 7220.821244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7220.821244][ T254] ___sys_sendmsg+0xee/0x170 [ 7220.821244][ T254] __sys_sendmsg+0xcd/0x170 [ 7220.821244][ T254] do_syscall_64+0xc6/0x1e0 [ 7220.821244][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7220.821244][ T254] [ 7230.983891][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7230.984382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.984382][ T254] dst_init+0x84/0x4a0 [ 7230.984382][ T254] dst_alloc+0x97/0x150 [ 7230.984382][ T254] ip6_dst_alloc+0x23/0x90 [ 7230.984382][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7230.984382][ T254] ip6_pol_route+0x56f/0x840 [ 7230.984382][ T254] fib6_rule_lookup+0x334/0x630 [ 7230.984382][ T254] ip6_route_output_flags+0x259/0x480 [ 7230.984382][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7230.984382][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7230.984382][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.984382][ T254] netlink_unicast+0x449/0x710 [ 7230.984382][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.984382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.984382][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.984382][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.984382][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.984382][ T254] [ 7230.986598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.986598][ T254] netdev_get_by_index+0x5e/0x80 [ 7230.986598][ T254] fib6_nh_init+0x3d8/0x1580 [ 7230.986598][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7230.986598][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7230.986598][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7230.986598][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7230.986598][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7230.986598][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7230.986598][ T254] addrconf_dad_begin+0x310/0x670 [ 7230.986598][ T254] addrconf_dad_work+0x10b/0xab0 [ 7230.986598][ T254] process_one_work+0x84d/0x18a0 [ 7230.986598][ T254] worker_thread+0x587/0xd30 [ 7230.986598][ T254] kthread+0x28a/0x350 [ 7230.986598][ T254] ret_from_fork+0x31/0x70 [ 7230.986598][ T254] ret_from_fork_asm+0x1a/0x30 [ 7230.986598][ T254] [ 7230.988792][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.988792][ T254] netdev_get_by_index+0x5e/0x80 [ 7230.988792][ T254] fib6_nh_init+0x3d8/0x1580 [ 7230.988792][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7230.988792][ T254] ip6_route_add+0x1c/0x140 [ 7230.988792][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7230.988792][ T254] inet6_addr_add+0x4f8/0xa40 [ 7230.988792][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7230.988792][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7230.988792][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.988792][ T254] netlink_unicast+0x449/0x710 [ 7230.988792][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.988792][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.988792][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.988792][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.988792][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.988792][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7230.988792][ T254] [ 7230.991039][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.991039][ T254] netdev_get_by_index+0x5e/0x80 [ 7230.991039][ T254] fib6_nh_init+0x3d8/0x1580 [ 7230.991039][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7230.991039][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7230.991039][ T254] ipv6_add_addr+0x411/0x2000 [ 7230.991039][ T254] inet6_addr_add+0x30e/0xa40 [ 7230.991039][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7230.991039][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7230.991039][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.991039][ T254] netlink_unicast+0x449/0x710 [ 7230.991039][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.991039][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.991039][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.991039][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.991039][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.991039][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7230.991039][ T254] [ 7230.993286][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.993286][ T254] netdev_get_by_index+0x5e/0x80 [ 7230.993286][ T254] fib6_nh_init+0x3d8/0x1580 [ 7230.993286][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7230.993286][ T254] ip6_route_add+0x1c/0x140 [ 7230.993286][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7230.993286][ T254] addrconf_add_dev+0xe2/0x170 [ 7230.993286][ T254] inet6_addr_add+0x12f/0xa40 [ 7230.993286][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7230.993286][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7230.993286][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.993286][ T254] netlink_unicast+0x449/0x710 [ 7230.993286][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.993286][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.993286][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.993286][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.993286][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.993286][ T254] [ 7230.995498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.995498][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7230.995498][ T254] ipv6_find_idev+0x102/0x170 [ 7230.995498][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7230.995498][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7230.995498][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.995498][ T254] netlink_unicast+0x449/0x710 [ 7230.995498][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.995498][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.995498][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.995498][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.995498][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.995498][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7230.995498][ T254] [ 7230.997217][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7230.997217][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7230.997217][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7230.997217][ T254] ipv6_find_idev+0x102/0x170 [ 7230.997217][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7230.997217][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7230.997217][ T254] netlink_rcv_skb+0x130/0x360 [ 7230.997217][ T254] netlink_unicast+0x449/0x710 [ 7230.997217][ T254] netlink_sendmsg+0x723/0xbe0 [ 7230.997217][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7230.997217][ T254] ___sys_sendmsg+0xee/0x170 [ 7230.997217][ T254] __sys_sendmsg+0xcd/0x170 [ 7230.997217][ T254] do_syscall_64+0xc6/0x1e0 [ 7230.997217][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7230.997217][ T254] [ 7241.151896][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7241.152383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.152383][ T254] dst_init+0x84/0x4a0 [ 7241.152383][ T254] dst_alloc+0x97/0x150 [ 7241.152383][ T254] ip6_dst_alloc+0x23/0x90 [ 7241.152383][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7241.152383][ T254] ip6_pol_route+0x56f/0x840 [ 7241.152383][ T254] fib6_rule_lookup+0x334/0x630 [ 7241.152383][ T254] ip6_route_output_flags+0x259/0x480 [ 7241.152383][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7241.152383][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7241.152383][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.152383][ T254] netlink_unicast+0x449/0x710 [ 7241.152383][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.152383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.152383][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.152383][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.152383][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.152383][ T254] [ 7241.154588][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.154588][ T254] netdev_get_by_index+0x5e/0x80 [ 7241.154588][ T254] fib6_nh_init+0x3d8/0x1580 [ 7241.154588][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7241.154588][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7241.154588][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7241.154588][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7241.154588][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7241.154588][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7241.154588][ T254] addrconf_dad_begin+0x310/0x670 [ 7241.154588][ T254] addrconf_dad_work+0x10b/0xab0 [ 7241.154588][ T254] process_one_work+0x84d/0x18a0 [ 7241.154588][ T254] worker_thread+0x587/0xd30 [ 7241.154588][ T254] kthread+0x28a/0x350 [ 7241.154588][ T254] ret_from_fork+0x31/0x70 [ 7241.154588][ T254] ret_from_fork_asm+0x1a/0x30 [ 7241.154588][ T254] [ 7241.156751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.156751][ T254] netdev_get_by_index+0x5e/0x80 [ 7241.156751][ T254] fib6_nh_init+0x3d8/0x1580 [ 7241.156751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7241.156751][ T254] ip6_route_add+0x1c/0x140 [ 7241.156751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7241.156751][ T254] inet6_addr_add+0x4f8/0xa40 [ 7241.156751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7241.156751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7241.156751][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.156751][ T254] netlink_unicast+0x449/0x710 [ 7241.156751][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.156751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.156751][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.156751][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.156751][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.156751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7241.156751][ T254] [ 7241.158992][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.158992][ T254] netdev_get_by_index+0x5e/0x80 [ 7241.158992][ T254] fib6_nh_init+0x3d8/0x1580 [ 7241.158992][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7241.158992][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7241.158992][ T254] ipv6_add_addr+0x411/0x2000 [ 7241.158992][ T254] inet6_addr_add+0x30e/0xa40 [ 7241.158992][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7241.158992][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7241.158992][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.158992][ T254] netlink_unicast+0x449/0x710 [ 7241.158992][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.158992][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.158992][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.158992][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.158992][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.158992][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7241.158992][ T254] [ 7241.161241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.161241][ T254] netdev_get_by_index+0x5e/0x80 [ 7241.161241][ T254] fib6_nh_init+0x3d8/0x1580 [ 7241.161241][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7241.161241][ T254] ip6_route_add+0x1c/0x140 [ 7241.161241][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7241.161241][ T254] addrconf_add_dev+0xe2/0x170 [ 7241.161241][ T254] inet6_addr_add+0x12f/0xa40 [ 7241.161241][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7241.161241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7241.161241][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.161241][ T254] netlink_unicast+0x449/0x710 [ 7241.161241][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.161241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.161241][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.161241][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.161241][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.161241][ T254] [ 7241.163443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.163443][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7241.163443][ T254] ipv6_find_idev+0x102/0x170 [ 7241.163443][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7241.163443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7241.163443][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.163443][ T254] netlink_unicast+0x449/0x710 [ 7241.163443][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.163443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.163443][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.163443][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.163443][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.163443][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7241.163443][ T254] [ 7241.165176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7241.165176][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7241.165176][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7241.165176][ T254] ipv6_find_idev+0x102/0x170 [ 7241.165176][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7241.165176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7241.165176][ T254] netlink_rcv_skb+0x130/0x360 [ 7241.165176][ T254] netlink_unicast+0x449/0x710 [ 7241.165176][ T254] netlink_sendmsg+0x723/0xbe0 [ 7241.165176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7241.165176][ T254] ___sys_sendmsg+0xee/0x170 [ 7241.165176][ T254] __sys_sendmsg+0xcd/0x170 [ 7241.165176][ T254] do_syscall_64+0xc6/0x1e0 [ 7241.165176][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7241.165176][ T254] [ 7251.199836][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7251.200249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.200249][ T254] dst_init+0x84/0x4a0 [ 7251.200249][ T254] dst_alloc+0x97/0x150 [ 7251.200249][ T254] ip6_dst_alloc+0x23/0x90 [ 7251.200249][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7251.200249][ T254] ip6_pol_route+0x56f/0x840 [ 7251.200249][ T254] fib6_rule_lookup+0x334/0x630 [ 7251.200249][ T254] ip6_route_output_flags+0x259/0x480 [ 7251.200249][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7251.200249][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7251.200249][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.200249][ T254] netlink_unicast+0x449/0x710 [ 7251.200249][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.200249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.200249][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.200249][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.200249][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.200249][ T254] [ 7251.202528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.202528][ T254] netdev_get_by_index+0x5e/0x80 [ 7251.202528][ T254] fib6_nh_init+0x3d8/0x1580 [ 7251.202528][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7251.202528][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7251.202528][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7251.202528][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7251.202528][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7251.202528][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7251.202528][ T254] addrconf_dad_begin+0x310/0x670 [ 7251.202528][ T254] addrconf_dad_work+0x10b/0xab0 [ 7251.202528][ T254] process_one_work+0x84d/0x18a0 [ 7251.202528][ T254] worker_thread+0x587/0xd30 [ 7251.202528][ T254] kthread+0x28a/0x350 [ 7251.202528][ T254] ret_from_fork+0x31/0x70 [ 7251.202528][ T254] ret_from_fork_asm+0x1a/0x30 [ 7251.202528][ T254] [ 7251.204882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.204882][ T254] netdev_get_by_index+0x5e/0x80 [ 7251.204882][ T254] fib6_nh_init+0x3d8/0x1580 [ 7251.204882][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7251.204882][ T254] ip6_route_add+0x1c/0x140 [ 7251.204882][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7251.204882][ T254] inet6_addr_add+0x4f8/0xa40 [ 7251.204882][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7251.204882][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7251.204882][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.204882][ T254] netlink_unicast+0x449/0x710 [ 7251.204882][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.204882][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.204882][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.204882][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.204882][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.204882][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7251.204882][ T254] [ 7251.207310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.207310][ T254] netdev_get_by_index+0x5e/0x80 [ 7251.207310][ T254] fib6_nh_init+0x3d8/0x1580 [ 7251.207310][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7251.207310][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7251.207310][ T254] ipv6_add_addr+0x411/0x2000 [ 7251.207310][ T254] inet6_addr_add+0x30e/0xa40 [ 7251.207310][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7251.207310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7251.207310][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.207310][ T254] netlink_unicast+0x449/0x710 [ 7251.207310][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.207310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.207310][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.207310][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.207310][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.207310][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7251.207310][ T254] [ 7251.209549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.209549][ T254] netdev_get_by_index+0x5e/0x80 [ 7251.209549][ T254] fib6_nh_init+0x3d8/0x1580 [ 7251.209549][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7251.209549][ T254] ip6_route_add+0x1c/0x140 [ 7251.209549][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7251.209549][ T254] addrconf_add_dev+0xe2/0x170 [ 7251.209549][ T254] inet6_addr_add+0x12f/0xa40 [ 7251.209549][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7251.209549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7251.209549][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.209549][ T254] netlink_unicast+0x449/0x710 [ 7251.209549][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.209549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.209549][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.209549][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.209549][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.209549][ T254] [ 7251.211757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.211757][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7251.211757][ T254] ipv6_find_idev+0x102/0x170 [ 7251.211757][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7251.211757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7251.211757][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.211757][ T254] netlink_unicast+0x449/0x710 [ 7251.211757][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.211757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.211757][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.211757][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.211757][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.211757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7251.211757][ T254] [ 7251.213486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7251.213486][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7251.213486][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7251.213486][ T254] ipv6_find_idev+0x102/0x170 [ 7251.213486][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7251.213486][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7251.213486][ T254] netlink_rcv_skb+0x130/0x360 [ 7251.213486][ T254] netlink_unicast+0x449/0x710 [ 7251.213486][ T254] netlink_sendmsg+0x723/0xbe0 [ 7251.213486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7251.213486][ T254] ___sys_sendmsg+0xee/0x170 [ 7251.213486][ T254] __sys_sendmsg+0xcd/0x170 [ 7251.213486][ T254] do_syscall_64+0xc6/0x1e0 [ 7251.213486][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7251.213486][ T254] [ 7261.463956][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7261.464440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.464440][ T254] dst_init+0x84/0x4a0 [ 7261.464440][ T254] dst_alloc+0x97/0x150 [ 7261.464440][ T254] ip6_dst_alloc+0x23/0x90 [ 7261.464440][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7261.464440][ T254] ip6_pol_route+0x56f/0x840 [ 7261.464440][ T254] fib6_rule_lookup+0x334/0x630 [ 7261.464440][ T254] ip6_route_output_flags+0x259/0x480 [ 7261.464440][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7261.464440][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7261.464440][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.464440][ T254] netlink_unicast+0x449/0x710 [ 7261.464440][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.464440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.464440][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.464440][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.464440][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.464440][ T254] [ 7261.466848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.466848][ T254] netdev_get_by_index+0x5e/0x80 [ 7261.466848][ T254] fib6_nh_init+0x3d8/0x1580 [ 7261.466848][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7261.466848][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7261.466848][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7261.466848][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7261.466848][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7261.466848][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7261.466848][ T254] addrconf_dad_begin+0x310/0x670 [ 7261.466848][ T254] addrconf_dad_work+0x10b/0xab0 [ 7261.466848][ T254] process_one_work+0x84d/0x18a0 [ 7261.466848][ T254] worker_thread+0x587/0xd30 [ 7261.466848][ T254] kthread+0x28a/0x350 [ 7261.466848][ T254] ret_from_fork+0x31/0x70 [ 7261.466848][ T254] ret_from_fork_asm+0x1a/0x30 [ 7261.466848][ T254] [ 7261.469204][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.469204][ T254] netdev_get_by_index+0x5e/0x80 [ 7261.469204][ T254] fib6_nh_init+0x3d8/0x1580 [ 7261.469204][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7261.469204][ T254] ip6_route_add+0x1c/0x140 [ 7261.469204][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7261.469204][ T254] inet6_addr_add+0x4f8/0xa40 [ 7261.469204][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7261.469204][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7261.469204][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.469204][ T254] netlink_unicast+0x449/0x710 [ 7261.469204][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.469204][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.469204][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.469204][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.469204][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.469204][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7261.469204][ T254] [ 7261.471642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.471642][ T254] netdev_get_by_index+0x5e/0x80 [ 7261.471642][ T254] fib6_nh_init+0x3d8/0x1580 [ 7261.471642][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7261.471642][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7261.471642][ T254] ipv6_add_addr+0x411/0x2000 [ 7261.471642][ T254] inet6_addr_add+0x30e/0xa40 [ 7261.471642][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7261.471642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7261.471642][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.471642][ T254] netlink_unicast+0x449/0x710 [ 7261.471642][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.471642][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.471642][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.471642][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.471642][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.471642][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7261.471642][ T254] [ 7261.474086][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.474086][ T254] netdev_get_by_index+0x5e/0x80 [ 7261.474086][ T254] fib6_nh_init+0x3d8/0x1580 [ 7261.474086][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7261.474086][ T254] ip6_route_add+0x1c/0x140 [ 7261.474086][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7261.474086][ T254] addrconf_add_dev+0xe2/0x170 [ 7261.474086][ T254] inet6_addr_add+0x12f/0xa40 [ 7261.474086][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7261.474086][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7261.474086][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.474086][ T254] netlink_unicast+0x449/0x710 [ 7261.474086][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.474086][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.474086][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.474086][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.474086][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.474086][ T254] [ 7261.476466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.476466][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7261.476466][ T254] ipv6_find_idev+0x102/0x170 [ 7261.476466][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7261.476466][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7261.476466][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.476466][ T254] netlink_unicast+0x449/0x710 [ 7261.476466][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.476466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.476466][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.476466][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.476466][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.476466][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7261.476466][ T254] [ 7261.478333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7261.478333][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7261.478333][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7261.478333][ T254] ipv6_find_idev+0x102/0x170 [ 7261.478333][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7261.478333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7261.478333][ T254] netlink_rcv_skb+0x130/0x360 [ 7261.478333][ T254] netlink_unicast+0x449/0x710 [ 7261.478333][ T254] netlink_sendmsg+0x723/0xbe0 [ 7261.478333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7261.478333][ T254] ___sys_sendmsg+0xee/0x170 [ 7261.478333][ T254] __sys_sendmsg+0xcd/0x170 [ 7261.478333][ T254] do_syscall_64+0xc6/0x1e0 [ 7261.478333][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7261.478333][ T254] [ 7271.719879][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7271.720349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.720349][ T254] dst_init+0x84/0x4a0 [ 7271.720349][ T254] dst_alloc+0x97/0x150 [ 7271.720349][ T254] ip6_dst_alloc+0x23/0x90 [ 7271.720349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7271.720349][ T254] ip6_pol_route+0x56f/0x840 [ 7271.720349][ T254] fib6_rule_lookup+0x334/0x630 [ 7271.720349][ T254] ip6_route_output_flags+0x259/0x480 [ 7271.720349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7271.720349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7271.720349][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.720349][ T254] netlink_unicast+0x449/0x710 [ 7271.720349][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.720349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.720349][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.720349][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.720349][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.720349][ T254] [ 7271.722566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.722566][ T254] netdev_get_by_index+0x5e/0x80 [ 7271.722566][ T254] fib6_nh_init+0x3d8/0x1580 [ 7271.722566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7271.722566][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7271.722566][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7271.722566][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7271.722566][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7271.722566][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7271.722566][ T254] addrconf_dad_begin+0x310/0x670 [ 7271.722566][ T254] addrconf_dad_work+0x10b/0xab0 [ 7271.722566][ T254] process_one_work+0x84d/0x18a0 [ 7271.722566][ T254] worker_thread+0x587/0xd30 [ 7271.722566][ T254] kthread+0x28a/0x350 [ 7271.722566][ T254] ret_from_fork+0x31/0x70 [ 7271.722566][ T254] ret_from_fork_asm+0x1a/0x30 [ 7271.722566][ T254] [ 7271.724733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.724733][ T254] netdev_get_by_index+0x5e/0x80 [ 7271.724733][ T254] fib6_nh_init+0x3d8/0x1580 [ 7271.724733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7271.724733][ T254] ip6_route_add+0x1c/0x140 [ 7271.724733][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7271.724733][ T254] inet6_addr_add+0x4f8/0xa40 [ 7271.724733][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7271.724733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7271.724733][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.724733][ T254] netlink_unicast+0x449/0x710 [ 7271.724733][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.724733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.724733][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.724733][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.724733][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.724733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7271.724733][ T254] [ 7271.726978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.726978][ T254] netdev_get_by_index+0x5e/0x80 [ 7271.726978][ T254] fib6_nh_init+0x3d8/0x1580 [ 7271.726978][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7271.726978][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7271.726978][ T254] ipv6_add_addr+0x411/0x2000 [ 7271.726978][ T254] inet6_addr_add+0x30e/0xa40 [ 7271.726978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7271.726978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7271.726978][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.726978][ T254] netlink_unicast+0x449/0x710 [ 7271.726978][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.726978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.726978][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.726978][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.726978][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.726978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7271.726978][ T254] [ 7271.729224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.729224][ T254] netdev_get_by_index+0x5e/0x80 [ 7271.729224][ T254] fib6_nh_init+0x3d8/0x1580 [ 7271.729224][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7271.729224][ T254] ip6_route_add+0x1c/0x140 [ 7271.729224][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7271.729224][ T254] addrconf_add_dev+0xe2/0x170 [ 7271.729224][ T254] inet6_addr_add+0x12f/0xa40 [ 7271.729224][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7271.729224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7271.729224][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.729224][ T254] netlink_unicast+0x449/0x710 [ 7271.729224][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.729224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.729224][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.729224][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.729224][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.729224][ T254] [ 7271.731450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.731450][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7271.731450][ T254] ipv6_find_idev+0x102/0x170 [ 7271.731450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7271.731450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7271.731450][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.731450][ T254] netlink_unicast+0x449/0x710 [ 7271.731450][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.731450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.731450][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.731450][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.731450][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.731450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7271.731450][ T254] [ 7271.733178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7271.733178][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7271.733178][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7271.733178][ T254] ipv6_find_idev+0x102/0x170 [ 7271.733178][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7271.733178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7271.733178][ T254] netlink_rcv_skb+0x130/0x360 [ 7271.733178][ T254] netlink_unicast+0x449/0x710 [ 7271.733178][ T254] netlink_sendmsg+0x723/0xbe0 [ 7271.733178][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7271.733178][ T254] ___sys_sendmsg+0xee/0x170 [ 7271.733178][ T254] __sys_sendmsg+0xcd/0x170 [ 7271.733178][ T254] do_syscall_64+0xc6/0x1e0 [ 7271.733178][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7271.733178][ T254] [ 7281.975873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7281.976360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.976360][ T254] dst_init+0x84/0x4a0 [ 7281.976360][ T254] dst_alloc+0x97/0x150 [ 7281.976360][ T254] ip6_dst_alloc+0x23/0x90 [ 7281.976360][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7281.976360][ T254] ip6_pol_route+0x56f/0x840 [ 7281.976360][ T254] fib6_rule_lookup+0x334/0x630 [ 7281.976360][ T254] ip6_route_output_flags+0x259/0x480 [ 7281.976360][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7281.976360][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7281.976360][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.976360][ T254] netlink_unicast+0x449/0x710 [ 7281.976360][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.976360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.976360][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.976360][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.976360][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.976360][ T254] [ 7281.978616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.978616][ T254] netdev_get_by_index+0x5e/0x80 [ 7281.978616][ T254] fib6_nh_init+0x3d8/0x1580 [ 7281.978616][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7281.978616][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7281.978616][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7281.978616][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7281.978616][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7281.978616][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7281.978616][ T254] addrconf_dad_begin+0x310/0x670 [ 7281.978616][ T254] addrconf_dad_work+0x10b/0xab0 [ 7281.978616][ T254] process_one_work+0x84d/0x18a0 [ 7281.978616][ T254] worker_thread+0x587/0xd30 [ 7281.978616][ T254] kthread+0x28a/0x350 [ 7281.978616][ T254] ret_from_fork+0x31/0x70 [ 7281.978616][ T254] ret_from_fork_asm+0x1a/0x30 [ 7281.978616][ T254] [ 7281.980786][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.980786][ T254] netdev_get_by_index+0x5e/0x80 [ 7281.980786][ T254] fib6_nh_init+0x3d8/0x1580 [ 7281.980786][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7281.980786][ T254] ip6_route_add+0x1c/0x140 [ 7281.980786][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7281.980786][ T254] inet6_addr_add+0x4f8/0xa40 [ 7281.980786][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7281.980786][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7281.980786][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.980786][ T254] netlink_unicast+0x449/0x710 [ 7281.980786][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.980786][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.980786][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.980786][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.980786][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.980786][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7281.980786][ T254] [ 7281.983053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.983053][ T254] netdev_get_by_index+0x5e/0x80 [ 7281.983053][ T254] fib6_nh_init+0x3d8/0x1580 [ 7281.983053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7281.983053][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7281.983053][ T254] ipv6_add_addr+0x411/0x2000 [ 7281.983053][ T254] inet6_addr_add+0x30e/0xa40 [ 7281.983053][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7281.983053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7281.983053][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.983053][ T254] netlink_unicast+0x449/0x710 [ 7281.983053][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.983053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.983053][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.983053][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.983053][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.983053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7281.983053][ T254] [ 7281.985323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.985323][ T254] netdev_get_by_index+0x5e/0x80 [ 7281.985323][ T254] fib6_nh_init+0x3d8/0x1580 [ 7281.985323][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7281.985323][ T254] ip6_route_add+0x1c/0x140 [ 7281.985323][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7281.985323][ T254] addrconf_add_dev+0xe2/0x170 [ 7281.985323][ T254] inet6_addr_add+0x12f/0xa40 [ 7281.985323][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7281.985323][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7281.985323][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.985323][ T254] netlink_unicast+0x449/0x710 [ 7281.985323][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.985323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.985323][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.985323][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.985323][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.985323][ T254] [ 7281.987557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.987557][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7281.987557][ T254] ipv6_find_idev+0x102/0x170 [ 7281.987557][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7281.987557][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7281.987557][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.987557][ T254] netlink_unicast+0x449/0x710 [ 7281.987557][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.987557][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.987557][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.987557][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.987557][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.987557][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7281.987557][ T254] [ 7281.989286][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7281.989286][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7281.989286][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7281.989286][ T254] ipv6_find_idev+0x102/0x170 [ 7281.989286][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7281.989286][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7281.989286][ T254] netlink_rcv_skb+0x130/0x360 [ 7281.989286][ T254] netlink_unicast+0x449/0x710 [ 7281.989286][ T254] netlink_sendmsg+0x723/0xbe0 [ 7281.989286][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7281.989286][ T254] ___sys_sendmsg+0xee/0x170 [ 7281.989286][ T254] __sys_sendmsg+0xcd/0x170 [ 7281.989286][ T254] do_syscall_64+0xc6/0x1e0 [ 7281.989286][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7281.989286][ T254] [ 7292.231833][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7292.232302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.232302][ T254] dst_init+0x84/0x4a0 [ 7292.232302][ T254] dst_alloc+0x97/0x150 [ 7292.232302][ T254] ip6_dst_alloc+0x23/0x90 [ 7292.232302][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7292.232302][ T254] ip6_pol_route+0x56f/0x840 [ 7292.232302][ T254] fib6_rule_lookup+0x334/0x630 [ 7292.232302][ T254] ip6_route_output_flags+0x259/0x480 [ 7292.232302][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7292.232302][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7292.232302][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.232302][ T254] netlink_unicast+0x449/0x710 [ 7292.232302][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.232302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.232302][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.232302][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.232302][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.232302][ T254] [ 7292.234516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.234516][ T254] netdev_get_by_index+0x5e/0x80 [ 7292.234516][ T254] fib6_nh_init+0x3d8/0x1580 [ 7292.234516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7292.234516][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7292.234516][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7292.234516][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7292.234516][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7292.234516][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7292.234516][ T254] addrconf_dad_begin+0x310/0x670 [ 7292.234516][ T254] addrconf_dad_work+0x10b/0xab0 [ 7292.234516][ T254] process_one_work+0x84d/0x18a0 [ 7292.234516][ T254] worker_thread+0x587/0xd30 [ 7292.234516][ T254] kthread+0x28a/0x350 [ 7292.234516][ T254] ret_from_fork+0x31/0x70 [ 7292.234516][ T254] ret_from_fork_asm+0x1a/0x30 [ 7292.234516][ T254] [ 7292.236667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.236667][ T254] netdev_get_by_index+0x5e/0x80 [ 7292.236667][ T254] fib6_nh_init+0x3d8/0x1580 [ 7292.236667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7292.236667][ T254] ip6_route_add+0x1c/0x140 [ 7292.236667][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7292.236667][ T254] inet6_addr_add+0x4f8/0xa40 [ 7292.236667][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7292.236667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7292.236667][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.236667][ T254] netlink_unicast+0x449/0x710 [ 7292.236667][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.236667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.236667][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.236667][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.236667][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.236667][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7292.236667][ T254] [ 7292.238906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.238906][ T254] netdev_get_by_index+0x5e/0x80 [ 7292.238906][ T254] fib6_nh_init+0x3d8/0x1580 [ 7292.238906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7292.238906][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7292.238906][ T254] ipv6_add_addr+0x411/0x2000 [ 7292.238906][ T254] inet6_addr_add+0x30e/0xa40 [ 7292.238906][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7292.238906][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7292.238906][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.238906][ T254] netlink_unicast+0x449/0x710 [ 7292.238906][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.238906][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.238906][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.238906][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.238906][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.238906][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7292.238906][ T254] [ 7292.241145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.241145][ T254] netdev_get_by_index+0x5e/0x80 [ 7292.241145][ T254] fib6_nh_init+0x3d8/0x1580 [ 7292.241145][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7292.241145][ T254] ip6_route_add+0x1c/0x140 [ 7292.241145][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7292.241145][ T254] addrconf_add_dev+0xe2/0x170 [ 7292.241145][ T254] inet6_addr_add+0x12f/0xa40 [ 7292.241145][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7292.241145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7292.241145][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.241145][ T254] netlink_unicast+0x449/0x710 [ 7292.241145][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.241145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.241145][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.241145][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.241145][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.241145][ T254] [ 7292.243365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.243365][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7292.243365][ T254] ipv6_find_idev+0x102/0x170 [ 7292.243365][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7292.243365][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7292.243365][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.243365][ T254] netlink_unicast+0x449/0x710 [ 7292.243365][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.243365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.243365][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.243365][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.243365][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.243365][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7292.243365][ T254] [ 7292.245111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7292.245111][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7292.245111][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7292.245111][ T254] ipv6_find_idev+0x102/0x170 [ 7292.245111][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7292.245111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7292.245111][ T254] netlink_rcv_skb+0x130/0x360 [ 7292.245111][ T254] netlink_unicast+0x449/0x710 [ 7292.245111][ T254] netlink_sendmsg+0x723/0xbe0 [ 7292.245111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7292.245111][ T254] ___sys_sendmsg+0xee/0x170 [ 7292.245111][ T254] __sys_sendmsg+0xcd/0x170 [ 7292.245111][ T254] do_syscall_64+0xc6/0x1e0 [ 7292.245111][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7292.245111][ T254] [ 7302.487845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7302.488331][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.488331][ T254] dst_init+0x84/0x4a0 [ 7302.488331][ T254] dst_alloc+0x97/0x150 [ 7302.488331][ T254] ip6_dst_alloc+0x23/0x90 [ 7302.488331][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7302.488331][ T254] ip6_pol_route+0x56f/0x840 [ 7302.488331][ T254] fib6_rule_lookup+0x334/0x630 [ 7302.488331][ T254] ip6_route_output_flags+0x259/0x480 [ 7302.488331][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7302.488331][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7302.488331][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.488331][ T254] netlink_unicast+0x449/0x710 [ 7302.488331][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.488331][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.488331][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.488331][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.488331][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.488331][ T254] [ 7302.490561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.490561][ T254] netdev_get_by_index+0x5e/0x80 [ 7302.490561][ T254] fib6_nh_init+0x3d8/0x1580 [ 7302.490561][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7302.490561][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7302.490561][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7302.490561][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7302.490561][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7302.490561][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7302.490561][ T254] addrconf_dad_begin+0x310/0x670 [ 7302.490561][ T254] addrconf_dad_work+0x10b/0xab0 [ 7302.490561][ T254] process_one_work+0x84d/0x18a0 [ 7302.490561][ T254] worker_thread+0x587/0xd30 [ 7302.490561][ T254] kthread+0x28a/0x350 [ 7302.490561][ T254] ret_from_fork+0x31/0x70 [ 7302.490561][ T254] ret_from_fork_asm+0x1a/0x30 [ 7302.490561][ T254] [ 7302.492699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.492699][ T254] netdev_get_by_index+0x5e/0x80 [ 7302.492699][ T254] fib6_nh_init+0x3d8/0x1580 [ 7302.492699][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7302.492699][ T254] ip6_route_add+0x1c/0x140 [ 7302.492699][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7302.492699][ T254] inet6_addr_add+0x4f8/0xa40 [ 7302.492699][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7302.492699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7302.492699][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.492699][ T254] netlink_unicast+0x449/0x710 [ 7302.492699][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.492699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.492699][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.492699][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.492699][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.492699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7302.492699][ T254] [ 7302.494947][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.494947][ T254] netdev_get_by_index+0x5e/0x80 [ 7302.494947][ T254] fib6_nh_init+0x3d8/0x1580 [ 7302.494947][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7302.494947][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7302.494947][ T254] ipv6_add_addr+0x411/0x2000 [ 7302.494947][ T254] inet6_addr_add+0x30e/0xa40 [ 7302.494947][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7302.494947][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7302.494947][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.494947][ T254] netlink_unicast+0x449/0x710 [ 7302.494947][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.494947][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.494947][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.494947][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.494947][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.494947][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7302.494947][ T254] [ 7302.497184][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.497184][ T254] netdev_get_by_index+0x5e/0x80 [ 7302.497184][ T254] fib6_nh_init+0x3d8/0x1580 [ 7302.497184][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7302.497184][ T254] ip6_route_add+0x1c/0x140 [ 7302.497184][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7302.497184][ T254] addrconf_add_dev+0xe2/0x170 [ 7302.497184][ T254] inet6_addr_add+0x12f/0xa40 [ 7302.497184][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7302.497184][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7302.497184][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.497184][ T254] netlink_unicast+0x449/0x710 [ 7302.497184][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.497184][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.497184][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.497184][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.497184][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.497184][ T254] [ 7302.499409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.499409][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7302.499409][ T254] ipv6_find_idev+0x102/0x170 [ 7302.499409][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7302.499409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7302.499409][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.499409][ T254] netlink_unicast+0x449/0x710 [ 7302.499409][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.499409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.499409][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.499409][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.499409][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.499409][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7302.499409][ T254] [ 7302.501160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7302.501160][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7302.501160][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7302.501160][ T254] ipv6_find_idev+0x102/0x170 [ 7302.501160][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7302.501160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7302.501160][ T254] netlink_rcv_skb+0x130/0x360 [ 7302.501160][ T254] netlink_unicast+0x449/0x710 [ 7302.501160][ T254] netlink_sendmsg+0x723/0xbe0 [ 7302.501160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7302.501160][ T254] ___sys_sendmsg+0xee/0x170 [ 7302.501160][ T254] __sys_sendmsg+0xcd/0x170 [ 7302.501160][ T254] do_syscall_64+0xc6/0x1e0 [ 7302.501160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7302.501160][ T254] [ 7312.615912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7312.616411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.616411][ T254] dst_init+0x84/0x4a0 [ 7312.616411][ T254] dst_alloc+0x97/0x150 [ 7312.616411][ T254] ip6_dst_alloc+0x23/0x90 [ 7312.616411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7312.616411][ T254] ip6_pol_route+0x56f/0x840 [ 7312.616411][ T254] fib6_rule_lookup+0x334/0x630 [ 7312.616411][ T254] ip6_route_output_flags+0x259/0x480 [ 7312.616411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7312.616411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7312.616411][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.616411][ T254] netlink_unicast+0x449/0x710 [ 7312.616411][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.616411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.616411][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.616411][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.616411][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.616411][ T254] [ 7312.618653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.618653][ T254] netdev_get_by_index+0x5e/0x80 [ 7312.618653][ T254] fib6_nh_init+0x3d8/0x1580 [ 7312.618653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7312.618653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7312.618653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7312.618653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7312.618653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7312.618653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7312.618653][ T254] addrconf_dad_begin+0x310/0x670 [ 7312.618653][ T254] addrconf_dad_work+0x10b/0xab0 [ 7312.618653][ T254] process_one_work+0x84d/0x18a0 [ 7312.618653][ T254] worker_thread+0x587/0xd30 [ 7312.618653][ T254] kthread+0x28a/0x350 [ 7312.618653][ T254] ret_from_fork+0x31/0x70 [ 7312.618653][ T254] ret_from_fork_asm+0x1a/0x30 [ 7312.618653][ T254] [ 7312.620830][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.620830][ T254] netdev_get_by_index+0x5e/0x80 [ 7312.620830][ T254] fib6_nh_init+0x3d8/0x1580 [ 7312.620830][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7312.620830][ T254] ip6_route_add+0x1c/0x140 [ 7312.620830][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7312.620830][ T254] inet6_addr_add+0x4f8/0xa40 [ 7312.620830][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7312.620830][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7312.620830][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.620830][ T254] netlink_unicast+0x449/0x710 [ 7312.620830][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.620830][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.620830][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.620830][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.620830][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.620830][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7312.620830][ T254] [ 7312.623125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.623125][ T254] netdev_get_by_index+0x5e/0x80 [ 7312.623125][ T254] fib6_nh_init+0x3d8/0x1580 [ 7312.623125][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7312.623125][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7312.623125][ T254] ipv6_add_addr+0x411/0x2000 [ 7312.623125][ T254] inet6_addr_add+0x30e/0xa40 [ 7312.623125][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7312.623125][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7312.623125][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.623125][ T254] netlink_unicast+0x449/0x710 [ 7312.623125][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.623125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.623125][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.623125][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.623125][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.623125][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7312.623125][ T254] [ 7312.625422][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.625422][ T254] netdev_get_by_index+0x5e/0x80 [ 7312.625422][ T254] fib6_nh_init+0x3d8/0x1580 [ 7312.625422][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7312.625422][ T254] ip6_route_add+0x1c/0x140 [ 7312.625422][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7312.625422][ T254] addrconf_add_dev+0xe2/0x170 [ 7312.625422][ T254] inet6_addr_add+0x12f/0xa40 [ 7312.625422][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7312.625422][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7312.625422][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.625422][ T254] netlink_unicast+0x449/0x710 [ 7312.625422][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.625422][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.625422][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.625422][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.625422][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.625422][ T254] [ 7312.627624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.627624][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7312.627624][ T254] ipv6_find_idev+0x102/0x170 [ 7312.627624][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7312.627624][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7312.627624][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.627624][ T254] netlink_unicast+0x449/0x710 [ 7312.627624][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.627624][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.627624][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.627624][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.627624][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.627624][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7312.627624][ T254] [ 7312.629340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7312.629340][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7312.629340][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7312.629340][ T254] ipv6_find_idev+0x102/0x170 [ 7312.629340][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7312.629340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7312.629340][ T254] netlink_rcv_skb+0x130/0x360 [ 7312.629340][ T254] netlink_unicast+0x449/0x710 [ 7312.629340][ T254] netlink_sendmsg+0x723/0xbe0 [ 7312.629340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7312.629340][ T254] ___sys_sendmsg+0xee/0x170 [ 7312.629340][ T254] __sys_sendmsg+0xcd/0x170 [ 7312.629340][ T254] do_syscall_64+0xc6/0x1e0 [ 7312.629340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7312.629340][ T254] [ 7322.799938][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7322.800664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.800664][ T254] dst_init+0x84/0x4a0 [ 7322.800664][ T254] dst_alloc+0x97/0x150 [ 7322.800664][ T254] ip6_dst_alloc+0x23/0x90 [ 7322.800664][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7322.800664][ T254] ip6_pol_route+0x56f/0x840 [ 7322.800664][ T254] fib6_rule_lookup+0x334/0x630 [ 7322.800664][ T254] ip6_route_output_flags+0x259/0x480 [ 7322.800664][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7322.800664][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7322.800664][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.800664][ T254] netlink_unicast+0x449/0x710 [ 7322.800664][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.800664][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.800664][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.800664][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.800664][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.800664][ T254] [ 7322.802886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.802886][ T254] netdev_get_by_index+0x5e/0x80 [ 7322.802886][ T254] fib6_nh_init+0x3d8/0x1580 [ 7322.802886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7322.802886][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7322.802886][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7322.802886][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7322.802886][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7322.802886][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7322.802886][ T254] addrconf_dad_begin+0x310/0x670 [ 7322.802886][ T254] addrconf_dad_work+0x10b/0xab0 [ 7322.802886][ T254] process_one_work+0x84d/0x18a0 [ 7322.802886][ T254] worker_thread+0x587/0xd30 [ 7322.802886][ T254] kthread+0x28a/0x350 [ 7322.802886][ T254] ret_from_fork+0x31/0x70 [ 7322.802886][ T254] ret_from_fork_asm+0x1a/0x30 [ 7322.802886][ T254] [ 7322.805053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.805053][ T254] netdev_get_by_index+0x5e/0x80 [ 7322.805053][ T254] fib6_nh_init+0x3d8/0x1580 [ 7322.805053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7322.805053][ T254] ip6_route_add+0x1c/0x140 [ 7322.805053][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7322.805053][ T254] inet6_addr_add+0x4f8/0xa40 [ 7322.805053][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7322.805053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7322.805053][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.805053][ T254] netlink_unicast+0x449/0x710 [ 7322.805053][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.805053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.805053][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.805053][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.805053][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.805053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7322.805053][ T254] [ 7322.807299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.807299][ T254] netdev_get_by_index+0x5e/0x80 [ 7322.807299][ T254] fib6_nh_init+0x3d8/0x1580 [ 7322.807299][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7322.807299][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7322.807299][ T254] ipv6_add_addr+0x411/0x2000 [ 7322.807299][ T254] inet6_addr_add+0x30e/0xa40 [ 7322.807299][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7322.807299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7322.807299][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.807299][ T254] netlink_unicast+0x449/0x710 [ 7322.807299][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.807299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.807299][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.807299][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.807299][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.807299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7322.807299][ T254] [ 7322.809546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.809546][ T254] netdev_get_by_index+0x5e/0x80 [ 7322.809546][ T254] fib6_nh_init+0x3d8/0x1580 [ 7322.809546][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7322.809546][ T254] ip6_route_add+0x1c/0x140 [ 7322.809546][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7322.809546][ T254] addrconf_add_dev+0xe2/0x170 [ 7322.809546][ T254] inet6_addr_add+0x12f/0xa40 [ 7322.809546][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7322.809546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7322.809546][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.809546][ T254] netlink_unicast+0x449/0x710 [ 7322.809546][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.809546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.809546][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.809546][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.809546][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.809546][ T254] [ 7322.811755][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.811755][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7322.811755][ T254] ipv6_find_idev+0x102/0x170 [ 7322.811755][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7322.811755][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7322.811755][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.811755][ T254] netlink_unicast+0x449/0x710 [ 7322.811755][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.811755][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.811755][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.811755][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.811755][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.811755][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7322.811755][ T254] [ 7322.813504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7322.813504][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7322.813504][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7322.813504][ T254] ipv6_find_idev+0x102/0x170 [ 7322.813504][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7322.813504][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7322.813504][ T254] netlink_rcv_skb+0x130/0x360 [ 7322.813504][ T254] netlink_unicast+0x449/0x710 [ 7322.813504][ T254] netlink_sendmsg+0x723/0xbe0 [ 7322.813504][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7322.813504][ T254] ___sys_sendmsg+0xee/0x170 [ 7322.813504][ T254] __sys_sendmsg+0xcd/0x170 [ 7322.813504][ T254] do_syscall_64+0xc6/0x1e0 [ 7322.813504][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7322.813504][ T254] [ 7333.055909][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7333.056486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.056486][ T254] dst_init+0x84/0x4a0 [ 7333.056486][ T254] dst_alloc+0x97/0x150 [ 7333.056486][ T254] ip6_dst_alloc+0x23/0x90 [ 7333.056486][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7333.056486][ T254] ip6_pol_route+0x56f/0x840 [ 7333.056486][ T254] fib6_rule_lookup+0x334/0x630 [ 7333.056486][ T254] ip6_route_output_flags+0x259/0x480 [ 7333.056486][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7333.056486][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7333.056486][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.056486][ T254] netlink_unicast+0x449/0x710 [ 7333.056486][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.056486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.056486][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.056486][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.056486][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.056486][ T254] [ 7333.058696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.058696][ T254] netdev_get_by_index+0x5e/0x80 [ 7333.058696][ T254] fib6_nh_init+0x3d8/0x1580 [ 7333.058696][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7333.058696][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7333.058696][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7333.058696][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7333.058696][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7333.058696][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7333.058696][ T254] addrconf_dad_begin+0x310/0x670 [ 7333.058696][ T254] addrconf_dad_work+0x10b/0xab0 [ 7333.058696][ T254] process_one_work+0x84d/0x18a0 [ 7333.058696][ T254] worker_thread+0x587/0xd30 [ 7333.058696][ T254] kthread+0x28a/0x350 [ 7333.058696][ T254] ret_from_fork+0x31/0x70 [ 7333.058696][ T254] ret_from_fork_asm+0x1a/0x30 [ 7333.058696][ T254] [ 7333.060836][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.060836][ T254] netdev_get_by_index+0x5e/0x80 [ 7333.060836][ T254] fib6_nh_init+0x3d8/0x1580 [ 7333.060836][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7333.060836][ T254] ip6_route_add+0x1c/0x140 [ 7333.060836][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7333.060836][ T254] inet6_addr_add+0x4f8/0xa40 [ 7333.060836][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7333.060836][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7333.060836][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.060836][ T254] netlink_unicast+0x449/0x710 [ 7333.060836][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.060836][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.060836][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.060836][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.060836][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.060836][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7333.060836][ T254] [ 7333.063073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.063073][ T254] netdev_get_by_index+0x5e/0x80 [ 7333.063073][ T254] fib6_nh_init+0x3d8/0x1580 [ 7333.063073][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7333.063073][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7333.063073][ T254] ipv6_add_addr+0x411/0x2000 [ 7333.063073][ T254] inet6_addr_add+0x30e/0xa40 [ 7333.063073][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7333.063073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7333.063073][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.063073][ T254] netlink_unicast+0x449/0x710 [ 7333.063073][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.063073][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.063073][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.063073][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.063073][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.063073][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7333.063073][ T254] [ 7333.065318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.065318][ T254] netdev_get_by_index+0x5e/0x80 [ 7333.065318][ T254] fib6_nh_init+0x3d8/0x1580 [ 7333.065318][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7333.065318][ T254] ip6_route_add+0x1c/0x140 [ 7333.065318][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7333.065318][ T254] addrconf_add_dev+0xe2/0x170 [ 7333.065318][ T254] inet6_addr_add+0x12f/0xa40 [ 7333.065318][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7333.065318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7333.065318][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.065318][ T254] netlink_unicast+0x449/0x710 [ 7333.065318][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.065318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.065318][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.065318][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.065318][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.065318][ T254] [ 7333.067522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.067522][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7333.067522][ T254] ipv6_find_idev+0x102/0x170 [ 7333.067522][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7333.067522][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7333.067522][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.067522][ T254] netlink_unicast+0x449/0x710 [ 7333.067522][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.067522][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.067522][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.067522][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.067522][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.067522][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7333.067522][ T254] [ 7333.069262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7333.069262][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7333.069262][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7333.069262][ T254] ipv6_find_idev+0x102/0x170 [ 7333.069262][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7333.069262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7333.069262][ T254] netlink_rcv_skb+0x130/0x360 [ 7333.069262][ T254] netlink_unicast+0x449/0x710 [ 7333.069262][ T254] netlink_sendmsg+0x723/0xbe0 [ 7333.069262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7333.069262][ T254] ___sys_sendmsg+0xee/0x170 [ 7333.069262][ T254] __sys_sendmsg+0xcd/0x170 [ 7333.069262][ T254] do_syscall_64+0xc6/0x1e0 [ 7333.069262][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7333.069262][ T254] [ 7343.143874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7343.144495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.144495][ T254] dst_init+0x84/0x4a0 [ 7343.144495][ T254] dst_alloc+0x97/0x150 [ 7343.144495][ T254] ip6_dst_alloc+0x23/0x90 [ 7343.144495][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7343.144495][ T254] ip6_pol_route+0x56f/0x840 [ 7343.144495][ T254] fib6_rule_lookup+0x334/0x630 [ 7343.144495][ T254] ip6_route_output_flags+0x259/0x480 [ 7343.144495][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7343.144495][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7343.144495][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.144495][ T254] netlink_unicast+0x449/0x710 [ 7343.144495][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.144495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.144495][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.144495][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.144495][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.144495][ T254] [ 7343.146730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.146730][ T254] netdev_get_by_index+0x5e/0x80 [ 7343.146730][ T254] fib6_nh_init+0x3d8/0x1580 [ 7343.146730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7343.146730][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7343.146730][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7343.146730][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7343.146730][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7343.146730][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7343.146730][ T254] addrconf_dad_begin+0x310/0x670 [ 7343.146730][ T254] addrconf_dad_work+0x10b/0xab0 [ 7343.146730][ T254] process_one_work+0x84d/0x18a0 [ 7343.146730][ T254] worker_thread+0x587/0xd30 [ 7343.146730][ T254] kthread+0x28a/0x350 [ 7343.146730][ T254] ret_from_fork+0x31/0x70 [ 7343.146730][ T254] ret_from_fork_asm+0x1a/0x30 [ 7343.146730][ T254] [ 7343.148893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.148893][ T254] netdev_get_by_index+0x5e/0x80 [ 7343.148893][ T254] fib6_nh_init+0x3d8/0x1580 [ 7343.148893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7343.148893][ T254] ip6_route_add+0x1c/0x140 [ 7343.148893][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7343.148893][ T254] inet6_addr_add+0x4f8/0xa40 [ 7343.148893][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7343.148893][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7343.148893][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.148893][ T254] netlink_unicast+0x449/0x710 [ 7343.148893][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.148893][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.148893][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.148893][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.148893][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.148893][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7343.148893][ T254] [ 7343.151163][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.151163][ T254] netdev_get_by_index+0x5e/0x80 [ 7343.151163][ T254] fib6_nh_init+0x3d8/0x1580 [ 7343.151163][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7343.151163][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7343.151163][ T254] ipv6_add_addr+0x411/0x2000 [ 7343.151163][ T254] inet6_addr_add+0x30e/0xa40 [ 7343.151163][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7343.151163][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7343.151163][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.151163][ T254] netlink_unicast+0x449/0x710 [ 7343.151163][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.151163][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.151163][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.151163][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.151163][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.151163][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7343.151163][ T254] [ 7343.153441][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.153441][ T254] netdev_get_by_index+0x5e/0x80 [ 7343.153441][ T254] fib6_nh_init+0x3d8/0x1580 [ 7343.153441][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7343.153441][ T254] ip6_route_add+0x1c/0x140 [ 7343.153441][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7343.153441][ T254] addrconf_add_dev+0xe2/0x170 [ 7343.153441][ T254] inet6_addr_add+0x12f/0xa40 [ 7343.153441][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7343.153441][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7343.153441][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.153441][ T254] netlink_unicast+0x449/0x710 [ 7343.153441][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.153441][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.153441][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.153441][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.153441][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.153441][ T254] [ 7343.155659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.155659][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7343.155659][ T254] ipv6_find_idev+0x102/0x170 [ 7343.155659][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7343.155659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7343.155659][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.155659][ T254] netlink_unicast+0x449/0x710 [ 7343.155659][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.155659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.155659][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.155659][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.155659][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.155659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7343.155659][ T254] [ 7343.157420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7343.157420][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7343.157420][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7343.157420][ T254] ipv6_find_idev+0x102/0x170 [ 7343.157420][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7343.157420][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7343.157420][ T254] netlink_rcv_skb+0x130/0x360 [ 7343.157420][ T254] netlink_unicast+0x449/0x710 [ 7343.157420][ T254] netlink_sendmsg+0x723/0xbe0 [ 7343.157420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7343.157420][ T254] ___sys_sendmsg+0xee/0x170 [ 7343.157420][ T254] __sys_sendmsg+0xcd/0x170 [ 7343.157420][ T254] do_syscall_64+0xc6/0x1e0 [ 7343.157420][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7343.157420][ T254] [ 7353.399856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7353.400388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.400388][ T254] dst_init+0x84/0x4a0 [ 7353.400388][ T254] dst_alloc+0x97/0x150 [ 7353.400388][ T254] ip6_dst_alloc+0x23/0x90 [ 7353.400388][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7353.400388][ T254] ip6_pol_route+0x56f/0x840 [ 7353.400388][ T254] fib6_rule_lookup+0x334/0x630 [ 7353.400388][ T254] ip6_route_output_flags+0x259/0x480 [ 7353.400388][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7353.400388][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7353.400388][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.400388][ T254] netlink_unicast+0x449/0x710 [ 7353.400388][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.400388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.400388][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.400388][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.400388][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.400388][ T254] [ 7353.402610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.402610][ T254] netdev_get_by_index+0x5e/0x80 [ 7353.402610][ T254] fib6_nh_init+0x3d8/0x1580 [ 7353.402610][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7353.402610][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7353.402610][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7353.402610][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7353.402610][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7353.402610][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7353.402610][ T254] addrconf_dad_begin+0x310/0x670 [ 7353.402610][ T254] addrconf_dad_work+0x10b/0xab0 [ 7353.402610][ T254] process_one_work+0x84d/0x18a0 [ 7353.402610][ T254] worker_thread+0x587/0xd30 [ 7353.402610][ T254] kthread+0x28a/0x350 [ 7353.402610][ T254] ret_from_fork+0x31/0x70 [ 7353.402610][ T254] ret_from_fork_asm+0x1a/0x30 [ 7353.402610][ T254] [ 7353.404778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.404778][ T254] netdev_get_by_index+0x5e/0x80 [ 7353.404778][ T254] fib6_nh_init+0x3d8/0x1580 [ 7353.404778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7353.404778][ T254] ip6_route_add+0x1c/0x140 [ 7353.404778][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7353.404778][ T254] inet6_addr_add+0x4f8/0xa40 [ 7353.404778][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7353.404778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7353.404778][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.404778][ T254] netlink_unicast+0x449/0x710 [ 7353.404778][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.404778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.404778][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.404778][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.404778][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.404778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7353.404778][ T254] [ 7353.407020][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.407020][ T254] netdev_get_by_index+0x5e/0x80 [ 7353.407020][ T254] fib6_nh_init+0x3d8/0x1580 [ 7353.407020][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7353.407020][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7353.407020][ T254] ipv6_add_addr+0x411/0x2000 [ 7353.407020][ T254] inet6_addr_add+0x30e/0xa40 [ 7353.407020][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7353.407020][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7353.407020][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.407020][ T254] netlink_unicast+0x449/0x710 [ 7353.407020][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.407020][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.407020][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.407020][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.407020][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.407020][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7353.407020][ T254] [ 7353.409264][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.409264][ T254] netdev_get_by_index+0x5e/0x80 [ 7353.409264][ T254] fib6_nh_init+0x3d8/0x1580 [ 7353.409264][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7353.409264][ T254] ip6_route_add+0x1c/0x140 [ 7353.409264][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7353.409264][ T254] addrconf_add_dev+0xe2/0x170 [ 7353.409264][ T254] inet6_addr_add+0x12f/0xa40 [ 7353.409264][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7353.409264][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7353.409264][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.409264][ T254] netlink_unicast+0x449/0x710 [ 7353.409264][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.409264][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.409264][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.409264][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.409264][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.409264][ T254] [ 7353.411477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.411477][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7353.411477][ T254] ipv6_find_idev+0x102/0x170 [ 7353.411477][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7353.411477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7353.411477][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.411477][ T254] netlink_unicast+0x449/0x710 [ 7353.411477][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.411477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.411477][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.411477][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.411477][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.411477][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7353.411477][ T254] [ 7353.413217][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7353.413217][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7353.413217][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7353.413217][ T254] ipv6_find_idev+0x102/0x170 [ 7353.413217][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7353.413217][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7353.413217][ T254] netlink_rcv_skb+0x130/0x360 [ 7353.413217][ T254] netlink_unicast+0x449/0x710 [ 7353.413217][ T254] netlink_sendmsg+0x723/0xbe0 [ 7353.413217][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7353.413217][ T254] ___sys_sendmsg+0xee/0x170 [ 7353.413217][ T254] __sys_sendmsg+0xcd/0x170 [ 7353.413217][ T254] do_syscall_64+0xc6/0x1e0 [ 7353.413217][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7353.413217][ T254] [ 7363.655797][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7363.656282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.656282][ T254] dst_init+0x84/0x4a0 [ 7363.656282][ T254] dst_alloc+0x97/0x150 [ 7363.656282][ T254] ip6_dst_alloc+0x23/0x90 [ 7363.656282][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7363.656282][ T254] ip6_pol_route+0x56f/0x840 [ 7363.656282][ T254] fib6_rule_lookup+0x334/0x630 [ 7363.656282][ T254] ip6_route_output_flags+0x259/0x480 [ 7363.656282][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7363.656282][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7363.656282][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.656282][ T254] netlink_unicast+0x449/0x710 [ 7363.656282][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.656282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.656282][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.656282][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.656282][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.656282][ T254] [ 7363.658502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.658502][ T254] netdev_get_by_index+0x5e/0x80 [ 7363.658502][ T254] fib6_nh_init+0x3d8/0x1580 [ 7363.658502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7363.658502][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7363.658502][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7363.658502][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7363.658502][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7363.658502][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7363.658502][ T254] addrconf_dad_begin+0x310/0x670 [ 7363.658502][ T254] addrconf_dad_work+0x10b/0xab0 [ 7363.658502][ T254] process_one_work+0x84d/0x18a0 [ 7363.658502][ T254] worker_thread+0x587/0xd30 [ 7363.658502][ T254] kthread+0x28a/0x350 [ 7363.658502][ T254] ret_from_fork+0x31/0x70 [ 7363.658502][ T254] ret_from_fork_asm+0x1a/0x30 [ 7363.658502][ T254] [ 7363.660646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.660646][ T254] netdev_get_by_index+0x5e/0x80 [ 7363.660646][ T254] fib6_nh_init+0x3d8/0x1580 [ 7363.660646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7363.660646][ T254] ip6_route_add+0x1c/0x140 [ 7363.660646][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7363.660646][ T254] inet6_addr_add+0x4f8/0xa40 [ 7363.660646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7363.660646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7363.660646][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.660646][ T254] netlink_unicast+0x449/0x710 [ 7363.660646][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.660646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.660646][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.660646][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.660646][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.660646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7363.660646][ T254] [ 7363.662883][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.662883][ T254] netdev_get_by_index+0x5e/0x80 [ 7363.662883][ T254] fib6_nh_init+0x3d8/0x1580 [ 7363.662883][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7363.662883][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7363.662883][ T254] ipv6_add_addr+0x411/0x2000 [ 7363.662883][ T254] inet6_addr_add+0x30e/0xa40 [ 7363.662883][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7363.662883][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7363.662883][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.662883][ T254] netlink_unicast+0x449/0x710 [ 7363.662883][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.662883][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.662883][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.662883][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.662883][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.662883][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7363.662883][ T254] [ 7363.665136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.665136][ T254] netdev_get_by_index+0x5e/0x80 [ 7363.665136][ T254] fib6_nh_init+0x3d8/0x1580 [ 7363.665136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7363.665136][ T254] ip6_route_add+0x1c/0x140 [ 7363.665136][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7363.665136][ T254] addrconf_add_dev+0xe2/0x170 [ 7363.665136][ T254] inet6_addr_add+0x12f/0xa40 [ 7363.665136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7363.665136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7363.665136][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.665136][ T254] netlink_unicast+0x449/0x710 [ 7363.665136][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.665136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.665136][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.665136][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.665136][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.665136][ T254] [ 7363.667344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.667344][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7363.667344][ T254] ipv6_find_idev+0x102/0x170 [ 7363.667344][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7363.667344][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7363.667344][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.667344][ T254] netlink_unicast+0x449/0x710 [ 7363.667344][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.667344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.667344][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.667344][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.667344][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.667344][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7363.667344][ T254] [ 7363.669073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7363.669073][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7363.669073][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7363.669073][ T254] ipv6_find_idev+0x102/0x170 [ 7363.669073][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7363.669073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7363.669073][ T254] netlink_rcv_skb+0x130/0x360 [ 7363.669073][ T254] netlink_unicast+0x449/0x710 [ 7363.669073][ T254] netlink_sendmsg+0x723/0xbe0 [ 7363.669073][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7363.669073][ T254] ___sys_sendmsg+0xee/0x170 [ 7363.669073][ T254] __sys_sendmsg+0xcd/0x170 [ 7363.669073][ T254] do_syscall_64+0xc6/0x1e0 [ 7363.669073][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7363.669073][ T254] [ 7373.911848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7373.912370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.912370][ T254] dst_init+0x84/0x4a0 [ 7373.912370][ T254] dst_alloc+0x97/0x150 [ 7373.912370][ T254] ip6_dst_alloc+0x23/0x90 [ 7373.912370][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7373.912370][ T254] ip6_pol_route+0x56f/0x840 [ 7373.912370][ T254] fib6_rule_lookup+0x334/0x630 [ 7373.912370][ T254] ip6_route_output_flags+0x259/0x480 [ 7373.912370][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7373.912370][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7373.912370][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.912370][ T254] netlink_unicast+0x449/0x710 [ 7373.912370][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.912370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.912370][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.912370][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.912370][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.912370][ T254] [ 7373.914581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.914581][ T254] netdev_get_by_index+0x5e/0x80 [ 7373.914581][ T254] fib6_nh_init+0x3d8/0x1580 [ 7373.914581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7373.914581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7373.914581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7373.914581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7373.914581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7373.914581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7373.914581][ T254] addrconf_dad_begin+0x310/0x670 [ 7373.914581][ T254] addrconf_dad_work+0x10b/0xab0 [ 7373.914581][ T254] process_one_work+0x84d/0x18a0 [ 7373.914581][ T254] worker_thread+0x587/0xd30 [ 7373.914581][ T254] kthread+0x28a/0x350 [ 7373.914581][ T254] ret_from_fork+0x31/0x70 [ 7373.914581][ T254] ret_from_fork_asm+0x1a/0x30 [ 7373.914581][ T254] [ 7373.916741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.916741][ T254] netdev_get_by_index+0x5e/0x80 [ 7373.916741][ T254] fib6_nh_init+0x3d8/0x1580 [ 7373.916741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7373.916741][ T254] ip6_route_add+0x1c/0x140 [ 7373.916741][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7373.916741][ T254] inet6_addr_add+0x4f8/0xa40 [ 7373.916741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7373.916741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7373.916741][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.916741][ T254] netlink_unicast+0x449/0x710 [ 7373.916741][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.916741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.916741][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.916741][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.916741][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.916741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7373.916741][ T254] [ 7373.918991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.918991][ T254] netdev_get_by_index+0x5e/0x80 [ 7373.918991][ T254] fib6_nh_init+0x3d8/0x1580 [ 7373.918991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7373.918991][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7373.918991][ T254] ipv6_add_addr+0x411/0x2000 [ 7373.918991][ T254] inet6_addr_add+0x30e/0xa40 [ 7373.918991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7373.918991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7373.918991][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.918991][ T254] netlink_unicast+0x449/0x710 [ 7373.918991][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.918991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.918991][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.918991][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.918991][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.918991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7373.918991][ T254] [ 7373.921244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.921244][ T254] netdev_get_by_index+0x5e/0x80 [ 7373.921244][ T254] fib6_nh_init+0x3d8/0x1580 [ 7373.921244][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7373.921244][ T254] ip6_route_add+0x1c/0x140 [ 7373.921244][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7373.921244][ T254] addrconf_add_dev+0xe2/0x170 [ 7373.921244][ T254] inet6_addr_add+0x12f/0xa40 [ 7373.921244][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7373.921244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7373.921244][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.921244][ T254] netlink_unicast+0x449/0x710 [ 7373.921244][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.921244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.921244][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.921244][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.921244][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.921244][ T254] [ 7373.923447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.923447][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7373.923447][ T254] ipv6_find_idev+0x102/0x170 [ 7373.923447][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7373.923447][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7373.923447][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.923447][ T254] netlink_unicast+0x449/0x710 [ 7373.923447][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.923447][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.923447][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.923447][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.923447][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.923447][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7373.923447][ T254] [ 7373.925171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7373.925171][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7373.925171][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7373.925171][ T254] ipv6_find_idev+0x102/0x170 [ 7373.925171][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7373.925171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7373.925171][ T254] netlink_rcv_skb+0x130/0x360 [ 7373.925171][ T254] netlink_unicast+0x449/0x710 [ 7373.925171][ T254] netlink_sendmsg+0x723/0xbe0 [ 7373.925171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7373.925171][ T254] ___sys_sendmsg+0xee/0x170 [ 7373.925171][ T254] __sys_sendmsg+0xcd/0x170 [ 7373.925171][ T254] do_syscall_64+0xc6/0x1e0 [ 7373.925171][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7373.925171][ T254] [ 7384.184053][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7384.184717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.184717][ T254] dst_init+0x84/0x4a0 [ 7384.184717][ T254] dst_alloc+0x97/0x150 [ 7384.184717][ T254] ip6_dst_alloc+0x23/0x90 [ 7384.184717][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7384.184717][ T254] ip6_pol_route+0x56f/0x840 [ 7384.184717][ T254] fib6_rule_lookup+0x334/0x630 [ 7384.184717][ T254] ip6_route_output_flags+0x259/0x480 [ 7384.184717][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7384.184717][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7384.184717][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.184717][ T254] netlink_unicast+0x449/0x710 [ 7384.184717][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.184717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.184717][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.184717][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.184717][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.184717][ T254] [ 7384.186982][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.186982][ T254] netdev_get_by_index+0x5e/0x80 [ 7384.186982][ T254] fib6_nh_init+0x3d8/0x1580 [ 7384.186982][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7384.186982][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7384.186982][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7384.186982][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7384.186982][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7384.186982][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7384.186982][ T254] addrconf_dad_begin+0x310/0x670 [ 7384.186982][ T254] addrconf_dad_work+0x10b/0xab0 [ 7384.186982][ T254] process_one_work+0x84d/0x18a0 [ 7384.186982][ T254] worker_thread+0x587/0xd30 [ 7384.186982][ T254] kthread+0x28a/0x350 [ 7384.186982][ T254] ret_from_fork+0x31/0x70 [ 7384.186982][ T254] ret_from_fork_asm+0x1a/0x30 [ 7384.186982][ T254] [ 7384.189198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.189198][ T254] netdev_get_by_index+0x5e/0x80 [ 7384.189198][ T254] fib6_nh_init+0x3d8/0x1580 [ 7384.189198][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7384.189198][ T254] ip6_route_add+0x1c/0x140 [ 7384.189198][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7384.189198][ T254] inet6_addr_add+0x4f8/0xa40 [ 7384.189198][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7384.189198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7384.189198][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.189198][ T254] netlink_unicast+0x449/0x710 [ 7384.189198][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.189198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.189198][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.189198][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.189198][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.189198][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7384.189198][ T254] [ 7384.191476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.191476][ T254] netdev_get_by_index+0x5e/0x80 [ 7384.191476][ T254] fib6_nh_init+0x3d8/0x1580 [ 7384.191476][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7384.191476][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7384.191476][ T254] ipv6_add_addr+0x411/0x2000 [ 7384.191476][ T254] inet6_addr_add+0x30e/0xa40 [ 7384.191476][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7384.191476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7384.191476][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.191476][ T254] netlink_unicast+0x449/0x710 [ 7384.191476][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.191476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.191476][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.191476][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.191476][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.191476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7384.191476][ T254] [ 7384.193743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.193743][ T254] netdev_get_by_index+0x5e/0x80 [ 7384.193743][ T254] fib6_nh_init+0x3d8/0x1580 [ 7384.193743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7384.193743][ T254] ip6_route_add+0x1c/0x140 [ 7384.193743][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7384.193743][ T254] addrconf_add_dev+0xe2/0x170 [ 7384.193743][ T254] inet6_addr_add+0x12f/0xa40 [ 7384.193743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7384.193743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7384.193743][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.193743][ T254] netlink_unicast+0x449/0x710 [ 7384.193743][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.193743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.193743][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.193743][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.193743][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.193743][ T254] [ 7384.195962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.195962][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7384.195962][ T254] ipv6_find_idev+0x102/0x170 [ 7384.195962][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7384.195962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7384.195962][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.195962][ T254] netlink_unicast+0x449/0x710 [ 7384.195962][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.195962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.195962][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.195962][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.195962][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.195962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7384.195962][ T254] [ 7384.197700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7384.197700][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7384.197700][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7384.197700][ T254] ipv6_find_idev+0x102/0x170 [ 7384.197700][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7384.197700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7384.197700][ T254] netlink_rcv_skb+0x130/0x360 [ 7384.197700][ T254] netlink_unicast+0x449/0x710 [ 7384.197700][ T254] netlink_sendmsg+0x723/0xbe0 [ 7384.197700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7384.197700][ T254] ___sys_sendmsg+0xee/0x170 [ 7384.197700][ T254] __sys_sendmsg+0xcd/0x170 [ 7384.197700][ T254] do_syscall_64+0xc6/0x1e0 [ 7384.197700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7384.197700][ T254] [ 7394.439861][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7394.440622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.440622][ T254] dst_init+0x84/0x4a0 [ 7394.440622][ T254] dst_alloc+0x97/0x150 [ 7394.440622][ T254] ip6_dst_alloc+0x23/0x90 [ 7394.440622][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7394.440622][ T254] ip6_pol_route+0x56f/0x840 [ 7394.440622][ T254] fib6_rule_lookup+0x334/0x630 [ 7394.440622][ T254] ip6_route_output_flags+0x259/0x480 [ 7394.440622][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7394.440622][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7394.440622][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.440622][ T254] netlink_unicast+0x449/0x710 [ 7394.440622][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.440622][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.440622][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.440622][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.440622][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.440622][ T254] [ 7394.442862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.442862][ T254] netdev_get_by_index+0x5e/0x80 [ 7394.442862][ T254] fib6_nh_init+0x3d8/0x1580 [ 7394.442862][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7394.442862][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7394.442862][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7394.442862][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7394.442862][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7394.442862][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7394.442862][ T254] addrconf_dad_begin+0x310/0x670 [ 7394.442862][ T254] addrconf_dad_work+0x10b/0xab0 [ 7394.442862][ T254] process_one_work+0x84d/0x18a0 [ 7394.442862][ T254] worker_thread+0x587/0xd30 [ 7394.442862][ T254] kthread+0x28a/0x350 [ 7394.442862][ T254] ret_from_fork+0x31/0x70 [ 7394.442862][ T254] ret_from_fork_asm+0x1a/0x30 [ 7394.442862][ T254] [ 7394.445042][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.445042][ T254] netdev_get_by_index+0x5e/0x80 [ 7394.445042][ T254] fib6_nh_init+0x3d8/0x1580 [ 7394.445042][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7394.445042][ T254] ip6_route_add+0x1c/0x140 [ 7394.445042][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7394.445042][ T254] inet6_addr_add+0x4f8/0xa40 [ 7394.445042][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7394.445042][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7394.445042][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.445042][ T254] netlink_unicast+0x449/0x710 [ 7394.445042][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.445042][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.445042][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.445042][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.445042][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.445042][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7394.445042][ T254] [ 7394.447371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.447371][ T254] netdev_get_by_index+0x5e/0x80 [ 7394.447371][ T254] fib6_nh_init+0x3d8/0x1580 [ 7394.447371][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7394.447371][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7394.447371][ T254] ipv6_add_addr+0x411/0x2000 [ 7394.447371][ T254] inet6_addr_add+0x30e/0xa40 [ 7394.447371][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7394.447371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7394.447371][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.447371][ T254] netlink_unicast+0x449/0x710 [ 7394.447371][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.447371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.447371][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.447371][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.447371][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.447371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7394.447371][ T254] [ 7394.449667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.449667][ T254] netdev_get_by_index+0x5e/0x80 [ 7394.449667][ T254] fib6_nh_init+0x3d8/0x1580 [ 7394.449667][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7394.449667][ T254] ip6_route_add+0x1c/0x140 [ 7394.449667][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7394.449667][ T254] addrconf_add_dev+0xe2/0x170 [ 7394.449667][ T254] inet6_addr_add+0x12f/0xa40 [ 7394.449667][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7394.449667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7394.449667][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.449667][ T254] netlink_unicast+0x449/0x710 [ 7394.449667][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.449667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.449667][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.449667][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.449667][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.449667][ T254] [ 7394.451881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.451881][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7394.451881][ T254] ipv6_find_idev+0x102/0x170 [ 7394.451881][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7394.451881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7394.451881][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.451881][ T254] netlink_unicast+0x449/0x710 [ 7394.451881][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.451881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.451881][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.451881][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.451881][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.451881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7394.451881][ T254] [ 7394.453625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7394.453625][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7394.453625][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7394.453625][ T254] ipv6_find_idev+0x102/0x170 [ 7394.453625][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7394.453625][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7394.453625][ T254] netlink_rcv_skb+0x130/0x360 [ 7394.453625][ T254] netlink_unicast+0x449/0x710 [ 7394.453625][ T254] netlink_sendmsg+0x723/0xbe0 [ 7394.453625][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7394.453625][ T254] ___sys_sendmsg+0xee/0x170 [ 7394.453625][ T254] __sys_sendmsg+0xcd/0x170 [ 7394.453625][ T254] do_syscall_64+0xc6/0x1e0 [ 7394.453625][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7394.453625][ T254] [ 7404.695864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7404.696649][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.696649][ T254] dst_init+0x84/0x4a0 [ 7404.696649][ T254] dst_alloc+0x97/0x150 [ 7404.696649][ T254] ip6_dst_alloc+0x23/0x90 [ 7404.696649][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7404.696649][ T254] ip6_pol_route+0x56f/0x840 [ 7404.696649][ T254] fib6_rule_lookup+0x334/0x630 [ 7404.696649][ T254] ip6_route_output_flags+0x259/0x480 [ 7404.696649][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7404.696649][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7404.696649][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.696649][ T254] netlink_unicast+0x449/0x710 [ 7404.696649][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.696649][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.696649][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.696649][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.696649][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.696649][ T254] [ 7404.698915][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.698915][ T254] netdev_get_by_index+0x5e/0x80 [ 7404.698915][ T254] fib6_nh_init+0x3d8/0x1580 [ 7404.698915][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7404.698915][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7404.698915][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7404.698915][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7404.698915][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7404.698915][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7404.698915][ T254] addrconf_dad_begin+0x310/0x670 [ 7404.698915][ T254] addrconf_dad_work+0x10b/0xab0 [ 7404.698915][ T254] process_one_work+0x84d/0x18a0 [ 7404.698915][ T254] worker_thread+0x587/0xd30 [ 7404.698915][ T254] kthread+0x28a/0x350 [ 7404.698915][ T254] ret_from_fork+0x31/0x70 [ 7404.698915][ T254] ret_from_fork_asm+0x1a/0x30 [ 7404.698915][ T254] [ 7404.701125][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.701125][ T254] netdev_get_by_index+0x5e/0x80 [ 7404.701125][ T254] fib6_nh_init+0x3d8/0x1580 [ 7404.701125][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7404.701125][ T254] ip6_route_add+0x1c/0x140 [ 7404.701125][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7404.701125][ T254] inet6_addr_add+0x4f8/0xa40 [ 7404.701125][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7404.701125][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7404.701125][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.701125][ T254] netlink_unicast+0x449/0x710 [ 7404.701125][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.701125][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.701125][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.701125][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.701125][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.701125][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7404.701125][ T254] [ 7404.703416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.703416][ T254] netdev_get_by_index+0x5e/0x80 [ 7404.703416][ T254] fib6_nh_init+0x3d8/0x1580 [ 7404.703416][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7404.703416][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7404.703416][ T254] ipv6_add_addr+0x411/0x2000 [ 7404.703416][ T254] inet6_addr_add+0x30e/0xa40 [ 7404.703416][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7404.703416][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7404.703416][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.703416][ T254] netlink_unicast+0x449/0x710 [ 7404.703416][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.703416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.703416][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.703416][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.703416][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.703416][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7404.703416][ T254] [ 7404.705699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.705699][ T254] netdev_get_by_index+0x5e/0x80 [ 7404.705699][ T254] fib6_nh_init+0x3d8/0x1580 [ 7404.705699][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7404.705699][ T254] ip6_route_add+0x1c/0x140 [ 7404.705699][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7404.705699][ T254] addrconf_add_dev+0xe2/0x170 [ 7404.705699][ T254] inet6_addr_add+0x12f/0xa40 [ 7404.705699][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7404.705699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7404.705699][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.705699][ T254] netlink_unicast+0x449/0x710 [ 7404.705699][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.705699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.705699][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.705699][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.705699][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.705699][ T254] [ 7404.707918][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.707918][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7404.707918][ T254] ipv6_find_idev+0x102/0x170 [ 7404.707918][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7404.707918][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7404.707918][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.707918][ T254] netlink_unicast+0x449/0x710 [ 7404.707918][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.707918][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.707918][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.707918][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.707918][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.707918][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7404.707918][ T254] [ 7404.709654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7404.709654][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7404.709654][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7404.709654][ T254] ipv6_find_idev+0x102/0x170 [ 7404.709654][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7404.709654][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7404.709654][ T254] netlink_rcv_skb+0x130/0x360 [ 7404.709654][ T254] netlink_unicast+0x449/0x710 [ 7404.709654][ T254] netlink_sendmsg+0x723/0xbe0 [ 7404.709654][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7404.709654][ T254] ___sys_sendmsg+0xee/0x170 [ 7404.709654][ T254] __sys_sendmsg+0xcd/0x170 [ 7404.709654][ T254] do_syscall_64+0xc6/0x1e0 [ 7404.709654][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7404.709654][ T254] [ 7414.719799][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7414.720317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.720317][ T254] dst_init+0x84/0x4a0 [ 7414.720317][ T254] dst_alloc+0x97/0x150 [ 7414.720317][ T254] ip6_dst_alloc+0x23/0x90 [ 7414.720317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7414.720317][ T254] ip6_pol_route+0x56f/0x840 [ 7414.720317][ T254] fib6_rule_lookup+0x334/0x630 [ 7414.720317][ T254] ip6_route_output_flags+0x259/0x480 [ 7414.720317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7414.720317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7414.720317][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.720317][ T254] netlink_unicast+0x449/0x710 [ 7414.720317][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.720317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.720317][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.720317][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.720317][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.720317][ T254] [ 7414.722528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.722528][ T254] netdev_get_by_index+0x5e/0x80 [ 7414.722528][ T254] fib6_nh_init+0x3d8/0x1580 [ 7414.722528][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7414.722528][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7414.722528][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7414.722528][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7414.722528][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7414.722528][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7414.722528][ T254] addrconf_dad_begin+0x310/0x670 [ 7414.722528][ T254] addrconf_dad_work+0x10b/0xab0 [ 7414.722528][ T254] process_one_work+0x84d/0x18a0 [ 7414.722528][ T254] worker_thread+0x587/0xd30 [ 7414.722528][ T254] kthread+0x28a/0x350 [ 7414.722528][ T254] ret_from_fork+0x31/0x70 [ 7414.722528][ T254] ret_from_fork_asm+0x1a/0x30 [ 7414.722528][ T254] [ 7414.724700][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.724700][ T254] netdev_get_by_index+0x5e/0x80 [ 7414.724700][ T254] fib6_nh_init+0x3d8/0x1580 [ 7414.724700][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7414.724700][ T254] ip6_route_add+0x1c/0x140 [ 7414.724700][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7414.724700][ T254] inet6_addr_add+0x4f8/0xa40 [ 7414.724700][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7414.724700][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7414.724700][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.724700][ T254] netlink_unicast+0x449/0x710 [ 7414.724700][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.724700][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.724700][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.724700][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.724700][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.724700][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7414.724700][ T254] [ 7414.727006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.727006][ T254] netdev_get_by_index+0x5e/0x80 [ 7414.727006][ T254] fib6_nh_init+0x3d8/0x1580 [ 7414.727006][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7414.727006][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7414.727006][ T254] ipv6_add_addr+0x411/0x2000 [ 7414.727006][ T254] inet6_addr_add+0x30e/0xa40 [ 7414.727006][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7414.727006][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7414.727006][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.727006][ T254] netlink_unicast+0x449/0x710 [ 7414.727006][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.727006][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.727006][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.727006][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.727006][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.727006][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7414.727006][ T254] [ 7414.729289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.729289][ T254] netdev_get_by_index+0x5e/0x80 [ 7414.729289][ T254] fib6_nh_init+0x3d8/0x1580 [ 7414.729289][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7414.729289][ T254] ip6_route_add+0x1c/0x140 [ 7414.729289][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7414.729289][ T254] addrconf_add_dev+0xe2/0x170 [ 7414.729289][ T254] inet6_addr_add+0x12f/0xa40 [ 7414.729289][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7414.729289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7414.729289][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.729289][ T254] netlink_unicast+0x449/0x710 [ 7414.729289][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.729289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.729289][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.729289][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.729289][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.729289][ T254] [ 7414.731525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.731525][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7414.731525][ T254] ipv6_find_idev+0x102/0x170 [ 7414.731525][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7414.731525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7414.731525][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.731525][ T254] netlink_unicast+0x449/0x710 [ 7414.731525][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.731525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.731525][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.731525][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.731525][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.731525][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7414.731525][ T254] [ 7414.733274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7414.733274][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7414.733274][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7414.733274][ T254] ipv6_find_idev+0x102/0x170 [ 7414.733274][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7414.733274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7414.733274][ T254] netlink_rcv_skb+0x130/0x360 [ 7414.733274][ T254] netlink_unicast+0x449/0x710 [ 7414.733274][ T254] netlink_sendmsg+0x723/0xbe0 [ 7414.733274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7414.733274][ T254] ___sys_sendmsg+0xee/0x170 [ 7414.733274][ T254] __sys_sendmsg+0xcd/0x170 [ 7414.733274][ T254] do_syscall_64+0xc6/0x1e0 [ 7414.733274][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7414.733274][ T254] [ 7424.975866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7424.976580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.976580][ T254] dst_init+0x84/0x4a0 [ 7424.976580][ T254] dst_alloc+0x97/0x150 [ 7424.976580][ T254] ip6_dst_alloc+0x23/0x90 [ 7424.976580][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7424.976580][ T254] ip6_pol_route+0x56f/0x840 [ 7424.976580][ T254] fib6_rule_lookup+0x334/0x630 [ 7424.976580][ T254] ip6_route_output_flags+0x259/0x480 [ 7424.976580][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7424.976580][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7424.976580][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.976580][ T254] netlink_unicast+0x449/0x710 [ 7424.976580][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.976580][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.976580][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.976580][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.976580][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.976580][ T254] [ 7424.978800][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.978800][ T254] netdev_get_by_index+0x5e/0x80 [ 7424.978800][ T254] fib6_nh_init+0x3d8/0x1580 [ 7424.978800][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7424.978800][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7424.978800][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7424.978800][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7424.978800][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7424.978800][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7424.978800][ T254] addrconf_dad_begin+0x310/0x670 [ 7424.978800][ T254] addrconf_dad_work+0x10b/0xab0 [ 7424.978800][ T254] process_one_work+0x84d/0x18a0 [ 7424.978800][ T254] worker_thread+0x587/0xd30 [ 7424.978800][ T254] kthread+0x28a/0x350 [ 7424.978800][ T254] ret_from_fork+0x31/0x70 [ 7424.978800][ T254] ret_from_fork_asm+0x1a/0x30 [ 7424.978800][ T254] [ 7424.980963][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.980963][ T254] netdev_get_by_index+0x5e/0x80 [ 7424.980963][ T254] fib6_nh_init+0x3d8/0x1580 [ 7424.980963][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7424.980963][ T254] ip6_route_add+0x1c/0x140 [ 7424.980963][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7424.980963][ T254] inet6_addr_add+0x4f8/0xa40 [ 7424.980963][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7424.980963][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7424.980963][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.980963][ T254] netlink_unicast+0x449/0x710 [ 7424.980963][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.980963][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.980963][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.980963][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.980963][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.980963][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7424.980963][ T254] [ 7424.983232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.983232][ T254] netdev_get_by_index+0x5e/0x80 [ 7424.983232][ T254] fib6_nh_init+0x3d8/0x1580 [ 7424.983232][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7424.983232][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7424.983232][ T254] ipv6_add_addr+0x411/0x2000 [ 7424.983232][ T254] inet6_addr_add+0x30e/0xa40 [ 7424.983232][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7424.983232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7424.983232][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.983232][ T254] netlink_unicast+0x449/0x710 [ 7424.983232][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.983232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.983232][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.983232][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.983232][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.983232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7424.983232][ T254] [ 7424.985491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.985491][ T254] netdev_get_by_index+0x5e/0x80 [ 7424.985491][ T254] fib6_nh_init+0x3d8/0x1580 [ 7424.985491][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7424.985491][ T254] ip6_route_add+0x1c/0x140 [ 7424.985491][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7424.985491][ T254] addrconf_add_dev+0xe2/0x170 [ 7424.985491][ T254] inet6_addr_add+0x12f/0xa40 [ 7424.985491][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7424.985491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7424.985491][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.985491][ T254] netlink_unicast+0x449/0x710 [ 7424.985491][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.985491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.985491][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.985491][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.985491][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.985491][ T254] [ 7424.987723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.987723][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7424.987723][ T254] ipv6_find_idev+0x102/0x170 [ 7424.987723][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7424.987723][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7424.987723][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.987723][ T254] netlink_unicast+0x449/0x710 [ 7424.987723][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.987723][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.987723][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.987723][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.987723][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.987723][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7424.987723][ T254] [ 7424.989469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7424.989469][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7424.989469][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7424.989469][ T254] ipv6_find_idev+0x102/0x170 [ 7424.989469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7424.989469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7424.989469][ T254] netlink_rcv_skb+0x130/0x360 [ 7424.989469][ T254] netlink_unicast+0x449/0x710 [ 7424.989469][ T254] netlink_sendmsg+0x723/0xbe0 [ 7424.989469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7424.989469][ T254] ___sys_sendmsg+0xee/0x170 [ 7424.989469][ T254] __sys_sendmsg+0xcd/0x170 [ 7424.989469][ T254] do_syscall_64+0xc6/0x1e0 [ 7424.989469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7424.989469][ T254] [ 7435.231768][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7435.232234][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.232234][ T254] dst_init+0x84/0x4a0 [ 7435.232234][ T254] dst_alloc+0x97/0x150 [ 7435.232234][ T254] ip6_dst_alloc+0x23/0x90 [ 7435.232234][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7435.232234][ T254] ip6_pol_route+0x56f/0x840 [ 7435.232234][ T254] fib6_rule_lookup+0x334/0x630 [ 7435.232234][ T254] ip6_route_output_flags+0x259/0x480 [ 7435.232234][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7435.232234][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7435.232234][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.232234][ T254] netlink_unicast+0x449/0x710 [ 7435.232234][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.232234][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.232234][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.232234][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.232234][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.232234][ T254] [ 7435.234455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.234455][ T254] netdev_get_by_index+0x5e/0x80 [ 7435.234455][ T254] fib6_nh_init+0x3d8/0x1580 [ 7435.234455][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7435.234455][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7435.234455][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7435.234455][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7435.234455][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7435.234455][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7435.234455][ T254] addrconf_dad_begin+0x310/0x670 [ 7435.234455][ T254] addrconf_dad_work+0x10b/0xab0 [ 7435.234455][ T254] process_one_work+0x84d/0x18a0 [ 7435.234455][ T254] worker_thread+0x587/0xd30 [ 7435.234455][ T254] kthread+0x28a/0x350 [ 7435.234455][ T254] ret_from_fork+0x31/0x70 [ 7435.234455][ T254] ret_from_fork_asm+0x1a/0x30 [ 7435.234455][ T254] [ 7435.236602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.236602][ T254] netdev_get_by_index+0x5e/0x80 [ 7435.236602][ T254] fib6_nh_init+0x3d8/0x1580 [ 7435.236602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7435.236602][ T254] ip6_route_add+0x1c/0x140 [ 7435.236602][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7435.236602][ T254] inet6_addr_add+0x4f8/0xa40 [ 7435.236602][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7435.236602][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7435.236602][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.236602][ T254] netlink_unicast+0x449/0x710 [ 7435.236602][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.236602][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.236602][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.236602][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.236602][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.236602][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7435.236602][ T254] [ 7435.238850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.238850][ T254] netdev_get_by_index+0x5e/0x80 [ 7435.238850][ T254] fib6_nh_init+0x3d8/0x1580 [ 7435.238850][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7435.238850][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7435.238850][ T254] ipv6_add_addr+0x411/0x2000 [ 7435.238850][ T254] inet6_addr_add+0x30e/0xa40 [ 7435.238850][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7435.238850][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7435.238850][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.238850][ T254] netlink_unicast+0x449/0x710 [ 7435.238850][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.238850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.238850][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.238850][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.238850][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.238850][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7435.238850][ T254] [ 7435.241096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.241096][ T254] netdev_get_by_index+0x5e/0x80 [ 7435.241096][ T254] fib6_nh_init+0x3d8/0x1580 [ 7435.241096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7435.241096][ T254] ip6_route_add+0x1c/0x140 [ 7435.241096][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7435.241096][ T254] addrconf_add_dev+0xe2/0x170 [ 7435.241096][ T254] inet6_addr_add+0x12f/0xa40 [ 7435.241096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7435.241096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7435.241096][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.241096][ T254] netlink_unicast+0x449/0x710 [ 7435.241096][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.241096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.241096][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.241096][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.241096][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.241096][ T254] [ 7435.243312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.243312][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7435.243312][ T254] ipv6_find_idev+0x102/0x170 [ 7435.243312][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7435.243312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7435.243312][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.243312][ T254] netlink_unicast+0x449/0x710 [ 7435.243312][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.243312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.243312][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.243312][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.243312][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.243312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7435.243312][ T254] [ 7435.245041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7435.245041][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7435.245041][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7435.245041][ T254] ipv6_find_idev+0x102/0x170 [ 7435.245041][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7435.245041][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7435.245041][ T254] netlink_rcv_skb+0x130/0x360 [ 7435.245041][ T254] netlink_unicast+0x449/0x710 [ 7435.245041][ T254] netlink_sendmsg+0x723/0xbe0 [ 7435.245041][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7435.245041][ T254] ___sys_sendmsg+0xee/0x170 [ 7435.245041][ T254] __sys_sendmsg+0xcd/0x170 [ 7435.245041][ T254] do_syscall_64+0xc6/0x1e0 [ 7435.245041][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7435.245041][ T254] [ 7445.247781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7445.248263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.248263][ T254] dst_init+0x84/0x4a0 [ 7445.248263][ T254] dst_alloc+0x97/0x150 [ 7445.248263][ T254] ip6_dst_alloc+0x23/0x90 [ 7445.248263][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7445.248263][ T254] ip6_pol_route+0x56f/0x840 [ 7445.248263][ T254] fib6_rule_lookup+0x334/0x630 [ 7445.248263][ T254] ip6_route_output_flags+0x259/0x480 [ 7445.248263][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7445.248263][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7445.248263][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.248263][ T254] netlink_unicast+0x449/0x710 [ 7445.248263][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.248263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.248263][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.248263][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.248263][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.248263][ T254] [ 7445.250463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.250463][ T254] netdev_get_by_index+0x5e/0x80 [ 7445.250463][ T254] fib6_nh_init+0x3d8/0x1580 [ 7445.250463][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7445.250463][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7445.250463][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7445.250463][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7445.250463][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7445.250463][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7445.250463][ T254] addrconf_dad_begin+0x310/0x670 [ 7445.250463][ T254] addrconf_dad_work+0x10b/0xab0 [ 7445.250463][ T254] process_one_work+0x84d/0x18a0 [ 7445.250463][ T254] worker_thread+0x587/0xd30 [ 7445.250463][ T254] kthread+0x28a/0x350 [ 7445.250463][ T254] ret_from_fork+0x31/0x70 [ 7445.250463][ T254] ret_from_fork_asm+0x1a/0x30 [ 7445.250463][ T254] [ 7445.252618][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.252618][ T254] netdev_get_by_index+0x5e/0x80 [ 7445.252618][ T254] fib6_nh_init+0x3d8/0x1580 [ 7445.252618][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7445.252618][ T254] ip6_route_add+0x1c/0x140 [ 7445.252618][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7445.252618][ T254] inet6_addr_add+0x4f8/0xa40 [ 7445.252618][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7445.252618][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7445.252618][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.252618][ T254] netlink_unicast+0x449/0x710 [ 7445.252618][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.252618][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.252618][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.252618][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.252618][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.252618][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7445.252618][ T254] [ 7445.254865][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.254865][ T254] netdev_get_by_index+0x5e/0x80 [ 7445.254865][ T254] fib6_nh_init+0x3d8/0x1580 [ 7445.254865][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7445.254865][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7445.254865][ T254] ipv6_add_addr+0x411/0x2000 [ 7445.254865][ T254] inet6_addr_add+0x30e/0xa40 [ 7445.254865][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7445.254865][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7445.254865][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.254865][ T254] netlink_unicast+0x449/0x710 [ 7445.254865][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.254865][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.254865][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.254865][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.254865][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.254865][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7445.254865][ T254] [ 7445.257130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.257130][ T254] netdev_get_by_index+0x5e/0x80 [ 7445.257130][ T254] fib6_nh_init+0x3d8/0x1580 [ 7445.257130][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7445.257130][ T254] ip6_route_add+0x1c/0x140 [ 7445.257130][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7445.257130][ T254] addrconf_add_dev+0xe2/0x170 [ 7445.257130][ T254] inet6_addr_add+0x12f/0xa40 [ 7445.257130][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7445.257130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7445.257130][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.257130][ T254] netlink_unicast+0x449/0x710 [ 7445.257130][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.257130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.257130][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.257130][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.257130][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.257130][ T254] [ 7445.259340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.259340][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7445.259340][ T254] ipv6_find_idev+0x102/0x170 [ 7445.259340][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7445.259340][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7445.259340][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.259340][ T254] netlink_unicast+0x449/0x710 [ 7445.259340][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.259340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.259340][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.259340][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.259340][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.259340][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7445.259340][ T254] [ 7445.261061][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7445.261061][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7445.261061][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7445.261061][ T254] ipv6_find_idev+0x102/0x170 [ 7445.261061][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7445.261061][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7445.261061][ T254] netlink_rcv_skb+0x130/0x360 [ 7445.261061][ T254] netlink_unicast+0x449/0x710 [ 7445.261061][ T254] netlink_sendmsg+0x723/0xbe0 [ 7445.261061][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7445.261061][ T254] ___sys_sendmsg+0xee/0x170 [ 7445.261061][ T254] __sys_sendmsg+0xcd/0x170 [ 7445.261061][ T254] do_syscall_64+0xc6/0x1e0 [ 7445.261061][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7445.261061][ T254] [ 7455.327760][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7455.328229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.328229][ T254] dst_init+0x84/0x4a0 [ 7455.328229][ T254] dst_alloc+0x97/0x150 [ 7455.328229][ T254] ip6_dst_alloc+0x23/0x90 [ 7455.328229][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7455.328229][ T254] ip6_pol_route+0x56f/0x840 [ 7455.328229][ T254] fib6_rule_lookup+0x334/0x630 [ 7455.328229][ T254] ip6_route_output_flags+0x259/0x480 [ 7455.328229][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7455.328229][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7455.328229][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.328229][ T254] netlink_unicast+0x449/0x710 [ 7455.328229][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.328229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.328229][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.328229][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.328229][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.328229][ T254] [ 7455.330437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.330437][ T254] netdev_get_by_index+0x5e/0x80 [ 7455.330437][ T254] fib6_nh_init+0x3d8/0x1580 [ 7455.330437][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7455.330437][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7455.330437][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7455.330437][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7455.330437][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7455.330437][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7455.330437][ T254] addrconf_dad_begin+0x310/0x670 [ 7455.330437][ T254] addrconf_dad_work+0x10b/0xab0 [ 7455.330437][ T254] process_one_work+0x84d/0x18a0 [ 7455.330437][ T254] worker_thread+0x587/0xd30 [ 7455.330437][ T254] kthread+0x28a/0x350 [ 7455.330437][ T254] ret_from_fork+0x31/0x70 [ 7455.330437][ T254] ret_from_fork_asm+0x1a/0x30 [ 7455.330437][ T254] [ 7455.332587][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.332587][ T254] netdev_get_by_index+0x5e/0x80 [ 7455.332587][ T254] fib6_nh_init+0x3d8/0x1580 [ 7455.332587][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7455.332587][ T254] ip6_route_add+0x1c/0x140 [ 7455.332587][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7455.332587][ T254] inet6_addr_add+0x4f8/0xa40 [ 7455.332587][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7455.332587][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7455.332587][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.332587][ T254] netlink_unicast+0x449/0x710 [ 7455.332587][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.332587][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.332587][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.332587][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.332587][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.332587][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7455.332587][ T254] [ 7455.334848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.334848][ T254] netdev_get_by_index+0x5e/0x80 [ 7455.334848][ T254] fib6_nh_init+0x3d8/0x1580 [ 7455.334848][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7455.334848][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7455.334848][ T254] ipv6_add_addr+0x411/0x2000 [ 7455.334848][ T254] inet6_addr_add+0x30e/0xa40 [ 7455.334848][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7455.334848][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7455.334848][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.334848][ T254] netlink_unicast+0x449/0x710 [ 7455.334848][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.334848][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.334848][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.334848][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.334848][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.334848][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7455.334848][ T254] [ 7455.337096][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.337096][ T254] netdev_get_by_index+0x5e/0x80 [ 7455.337096][ T254] fib6_nh_init+0x3d8/0x1580 [ 7455.337096][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7455.337096][ T254] ip6_route_add+0x1c/0x140 [ 7455.337096][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7455.337096][ T254] addrconf_add_dev+0xe2/0x170 [ 7455.337096][ T254] inet6_addr_add+0x12f/0xa40 [ 7455.337096][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7455.337096][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7455.337096][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.337096][ T254] netlink_unicast+0x449/0x710 [ 7455.337096][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.337096][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.337096][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.337096][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.337096][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.337096][ T254] [ 7455.339313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.339313][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7455.339313][ T254] ipv6_find_idev+0x102/0x170 [ 7455.339313][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7455.339313][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7455.339313][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.339313][ T254] netlink_unicast+0x449/0x710 [ 7455.339313][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.339313][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.339313][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.339313][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.339313][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.339313][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7455.339313][ T254] [ 7455.341044][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7455.341044][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7455.341044][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7455.341044][ T254] ipv6_find_idev+0x102/0x170 [ 7455.341044][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7455.341044][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7455.341044][ T254] netlink_rcv_skb+0x130/0x360 [ 7455.341044][ T254] netlink_unicast+0x449/0x710 [ 7455.341044][ T254] netlink_sendmsg+0x723/0xbe0 [ 7455.341044][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7455.341044][ T254] ___sys_sendmsg+0xee/0x170 [ 7455.341044][ T254] __sys_sendmsg+0xcd/0x170 [ 7455.341044][ T254] do_syscall_64+0xc6/0x1e0 [ 7455.341044][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7455.341044][ T254] [ 7465.583769][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7465.584237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.584237][ T254] dst_init+0x84/0x4a0 [ 7465.584237][ T254] dst_alloc+0x97/0x150 [ 7465.584237][ T254] ip6_dst_alloc+0x23/0x90 [ 7465.584237][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7465.584237][ T254] ip6_pol_route+0x56f/0x840 [ 7465.584237][ T254] fib6_rule_lookup+0x334/0x630 [ 7465.584237][ T254] ip6_route_output_flags+0x259/0x480 [ 7465.584237][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7465.584237][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7465.584237][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.584237][ T254] netlink_unicast+0x449/0x710 [ 7465.584237][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.584237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.584237][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.584237][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.584237][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.584237][ T254] [ 7465.586444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.586444][ T254] netdev_get_by_index+0x5e/0x80 [ 7465.586444][ T254] fib6_nh_init+0x3d8/0x1580 [ 7465.586444][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7465.586444][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7465.586444][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7465.586444][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7465.586444][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7465.586444][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7465.586444][ T254] addrconf_dad_begin+0x310/0x670 [ 7465.586444][ T254] addrconf_dad_work+0x10b/0xab0 [ 7465.586444][ T254] process_one_work+0x84d/0x18a0 [ 7465.586444][ T254] worker_thread+0x587/0xd30 [ 7465.586444][ T254] kthread+0x28a/0x350 [ 7465.586444][ T254] ret_from_fork+0x31/0x70 [ 7465.586444][ T254] ret_from_fork_asm+0x1a/0x30 [ 7465.586444][ T254] [ 7465.588600][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.588600][ T254] netdev_get_by_index+0x5e/0x80 [ 7465.588600][ T254] fib6_nh_init+0x3d8/0x1580 [ 7465.588600][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7465.588600][ T254] ip6_route_add+0x1c/0x140 [ 7465.588600][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7465.588600][ T254] inet6_addr_add+0x4f8/0xa40 [ 7465.588600][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7465.588600][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7465.588600][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.588600][ T254] netlink_unicast+0x449/0x710 [ 7465.588600][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.588600][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.588600][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.588600][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.588600][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.588600][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7465.588600][ T254] [ 7465.590855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.590855][ T254] netdev_get_by_index+0x5e/0x80 [ 7465.590855][ T254] fib6_nh_init+0x3d8/0x1580 [ 7465.590855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7465.590855][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7465.590855][ T254] ipv6_add_addr+0x411/0x2000 [ 7465.590855][ T254] inet6_addr_add+0x30e/0xa40 [ 7465.590855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7465.590855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7465.590855][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.590855][ T254] netlink_unicast+0x449/0x710 [ 7465.590855][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.590855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.590855][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.590855][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.590855][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.590855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7465.590855][ T254] [ 7465.593107][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.593107][ T254] netdev_get_by_index+0x5e/0x80 [ 7465.593107][ T254] fib6_nh_init+0x3d8/0x1580 [ 7465.593107][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7465.593107][ T254] ip6_route_add+0x1c/0x140 [ 7465.593107][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7465.593107][ T254] addrconf_add_dev+0xe2/0x170 [ 7465.593107][ T254] inet6_addr_add+0x12f/0xa40 [ 7465.593107][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7465.593107][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7465.593107][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.593107][ T254] netlink_unicast+0x449/0x710 [ 7465.593107][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.593107][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.593107][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.593107][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.593107][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.593107][ T254] [ 7465.595321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.595321][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7465.595321][ T254] ipv6_find_idev+0x102/0x170 [ 7465.595321][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7465.595321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7465.595321][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.595321][ T254] netlink_unicast+0x449/0x710 [ 7465.595321][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.595321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.595321][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.595321][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.595321][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.595321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7465.595321][ T254] [ 7465.597053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7465.597053][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7465.597053][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7465.597053][ T254] ipv6_find_idev+0x102/0x170 [ 7465.597053][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7465.597053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7465.597053][ T254] netlink_rcv_skb+0x130/0x360 [ 7465.597053][ T254] netlink_unicast+0x449/0x710 [ 7465.597053][ T254] netlink_sendmsg+0x723/0xbe0 [ 7465.597053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7465.597053][ T254] ___sys_sendmsg+0xee/0x170 [ 7465.597053][ T254] __sys_sendmsg+0xcd/0x170 [ 7465.597053][ T254] do_syscall_64+0xc6/0x1e0 [ 7465.597053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7465.597053][ T254] [ 7475.839772][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7475.840245][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.840245][ T254] dst_init+0x84/0x4a0 [ 7475.840245][ T254] dst_alloc+0x97/0x150 [ 7475.840245][ T254] ip6_dst_alloc+0x23/0x90 [ 7475.840245][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7475.840245][ T254] ip6_pol_route+0x56f/0x840 [ 7475.840245][ T254] fib6_rule_lookup+0x334/0x630 [ 7475.840245][ T254] ip6_route_output_flags+0x259/0x480 [ 7475.840245][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7475.840245][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7475.840245][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.840245][ T254] netlink_unicast+0x449/0x710 [ 7475.840245][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.840245][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.840245][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.840245][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.840245][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.840245][ T254] [ 7475.842447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.842447][ T254] netdev_get_by_index+0x5e/0x80 [ 7475.842447][ T254] fib6_nh_init+0x3d8/0x1580 [ 7475.842447][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7475.842447][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7475.842447][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7475.842447][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7475.842447][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7475.842447][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7475.842447][ T254] addrconf_dad_begin+0x310/0x670 [ 7475.842447][ T254] addrconf_dad_work+0x10b/0xab0 [ 7475.842447][ T254] process_one_work+0x84d/0x18a0 [ 7475.842447][ T254] worker_thread+0x587/0xd30 [ 7475.842447][ T254] kthread+0x28a/0x350 [ 7475.842447][ T254] ret_from_fork+0x31/0x70 [ 7475.842447][ T254] ret_from_fork_asm+0x1a/0x30 [ 7475.842447][ T254] [ 7475.844601][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.844601][ T254] netdev_get_by_index+0x5e/0x80 [ 7475.844601][ T254] fib6_nh_init+0x3d8/0x1580 [ 7475.844601][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7475.844601][ T254] ip6_route_add+0x1c/0x140 [ 7475.844601][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7475.844601][ T254] inet6_addr_add+0x4f8/0xa40 [ 7475.844601][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7475.844601][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7475.844601][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.844601][ T254] netlink_unicast+0x449/0x710 [ 7475.844601][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.844601][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.844601][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.844601][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.844601][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.844601][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7475.844601][ T254] [ 7475.846834][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.846834][ T254] netdev_get_by_index+0x5e/0x80 [ 7475.846834][ T254] fib6_nh_init+0x3d8/0x1580 [ 7475.846834][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7475.846834][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7475.846834][ T254] ipv6_add_addr+0x411/0x2000 [ 7475.846834][ T254] inet6_addr_add+0x30e/0xa40 [ 7475.846834][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7475.846834][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7475.846834][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.846834][ T254] netlink_unicast+0x449/0x710 [ 7475.846834][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.846834][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.846834][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.846834][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.846834][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.846834][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7475.846834][ T254] [ 7475.849079][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.849079][ T254] netdev_get_by_index+0x5e/0x80 [ 7475.849079][ T254] fib6_nh_init+0x3d8/0x1580 [ 7475.849079][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7475.849079][ T254] ip6_route_add+0x1c/0x140 [ 7475.849079][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7475.849079][ T254] addrconf_add_dev+0xe2/0x170 [ 7475.849079][ T254] inet6_addr_add+0x12f/0xa40 [ 7475.849079][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7475.849079][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7475.849079][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.849079][ T254] netlink_unicast+0x449/0x710 [ 7475.849079][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.849079][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.849079][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.849079][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.849079][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.849079][ T254] [ 7475.851293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.851293][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7475.851293][ T254] ipv6_find_idev+0x102/0x170 [ 7475.851293][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7475.851293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7475.851293][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.851293][ T254] netlink_unicast+0x449/0x710 [ 7475.851293][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.851293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.851293][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.851293][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.851293][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.851293][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7475.851293][ T254] [ 7475.853025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7475.853025][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7475.853025][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7475.853025][ T254] ipv6_find_idev+0x102/0x170 [ 7475.853025][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7475.853025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7475.853025][ T254] netlink_rcv_skb+0x130/0x360 [ 7475.853025][ T254] netlink_unicast+0x449/0x710 [ 7475.853025][ T254] netlink_sendmsg+0x723/0xbe0 [ 7475.853025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7475.853025][ T254] ___sys_sendmsg+0xee/0x170 [ 7475.853025][ T254] __sys_sendmsg+0xcd/0x170 [ 7475.853025][ T254] do_syscall_64+0xc6/0x1e0 [ 7475.853025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7475.853025][ T254] [ 7486.095779][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7486.096249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.096249][ T254] dst_init+0x84/0x4a0 [ 7486.096249][ T254] dst_alloc+0x97/0x150 [ 7486.096249][ T254] ip6_dst_alloc+0x23/0x90 [ 7486.096249][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7486.096249][ T254] ip6_pol_route+0x56f/0x840 [ 7486.096249][ T254] fib6_rule_lookup+0x334/0x630 [ 7486.096249][ T254] ip6_route_output_flags+0x259/0x480 [ 7486.096249][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7486.096249][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7486.096249][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.096249][ T254] netlink_unicast+0x449/0x710 [ 7486.096249][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.096249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.096249][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.096249][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.096249][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.096249][ T254] [ 7486.098456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.098456][ T254] netdev_get_by_index+0x5e/0x80 [ 7486.098456][ T254] fib6_nh_init+0x3d8/0x1580 [ 7486.098456][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7486.098456][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7486.098456][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7486.098456][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7486.098456][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7486.098456][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7486.098456][ T254] addrconf_dad_begin+0x310/0x670 [ 7486.098456][ T254] addrconf_dad_work+0x10b/0xab0 [ 7486.098456][ T254] process_one_work+0x84d/0x18a0 [ 7486.098456][ T254] worker_thread+0x587/0xd30 [ 7486.098456][ T254] kthread+0x28a/0x350 [ 7486.098456][ T254] ret_from_fork+0x31/0x70 [ 7486.098456][ T254] ret_from_fork_asm+0x1a/0x30 [ 7486.098456][ T254] [ 7486.100616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.100616][ T254] netdev_get_by_index+0x5e/0x80 [ 7486.100616][ T254] fib6_nh_init+0x3d8/0x1580 [ 7486.100616][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7486.100616][ T254] ip6_route_add+0x1c/0x140 [ 7486.100616][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7486.100616][ T254] inet6_addr_add+0x4f8/0xa40 [ 7486.100616][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7486.100616][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7486.100616][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.100616][ T254] netlink_unicast+0x449/0x710 [ 7486.100616][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.100616][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.100616][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.100616][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.100616][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.100616][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7486.100616][ T254] [ 7486.102881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.102881][ T254] netdev_get_by_index+0x5e/0x80 [ 7486.102881][ T254] fib6_nh_init+0x3d8/0x1580 [ 7486.102881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7486.102881][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7486.102881][ T254] ipv6_add_addr+0x411/0x2000 [ 7486.102881][ T254] inet6_addr_add+0x30e/0xa40 [ 7486.102881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7486.102881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7486.102881][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.102881][ T254] netlink_unicast+0x449/0x710 [ 7486.102881][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.102881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.102881][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.102881][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.102881][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.102881][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7486.102881][ T254] [ 7486.105120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.105120][ T254] netdev_get_by_index+0x5e/0x80 [ 7486.105120][ T254] fib6_nh_init+0x3d8/0x1580 [ 7486.105120][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7486.105120][ T254] ip6_route_add+0x1c/0x140 [ 7486.105120][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7486.105120][ T254] addrconf_add_dev+0xe2/0x170 [ 7486.105120][ T254] inet6_addr_add+0x12f/0xa40 [ 7486.105120][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7486.105120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7486.105120][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.105120][ T254] netlink_unicast+0x449/0x710 [ 7486.105120][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.105120][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.105120][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.105120][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.105120][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.105120][ T254] [ 7486.107332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.107332][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7486.107332][ T254] ipv6_find_idev+0x102/0x170 [ 7486.107332][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7486.107332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7486.107332][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.107332][ T254] netlink_unicast+0x449/0x710 [ 7486.107332][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.107332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.107332][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.107332][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.107332][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.107332][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7486.107332][ T254] [ 7486.109059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7486.109059][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7486.109059][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7486.109059][ T254] ipv6_find_idev+0x102/0x170 [ 7486.109059][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7486.109059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7486.109059][ T254] netlink_rcv_skb+0x130/0x360 [ 7486.109059][ T254] netlink_unicast+0x449/0x710 [ 7486.109059][ T254] netlink_sendmsg+0x723/0xbe0 [ 7486.109059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7486.109059][ T254] ___sys_sendmsg+0xee/0x170 [ 7486.109059][ T254] __sys_sendmsg+0xcd/0x170 [ 7486.109059][ T254] do_syscall_64+0xc6/0x1e0 [ 7486.109059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7486.109059][ T254] [ 7496.351759][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7496.352259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.352259][ T254] dst_init+0x84/0x4a0 [ 7496.352259][ T254] dst_alloc+0x97/0x150 [ 7496.352259][ T254] ip6_dst_alloc+0x23/0x90 [ 7496.352259][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7496.352259][ T254] ip6_pol_route+0x56f/0x840 [ 7496.352259][ T254] fib6_rule_lookup+0x334/0x630 [ 7496.352259][ T254] ip6_route_output_flags+0x259/0x480 [ 7496.352259][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7496.352259][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7496.352259][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.352259][ T254] netlink_unicast+0x449/0x710 [ 7496.352259][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.352259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.352259][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.352259][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.352259][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.352259][ T254] [ 7496.354496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.354496][ T254] netdev_get_by_index+0x5e/0x80 [ 7496.354496][ T254] fib6_nh_init+0x3d8/0x1580 [ 7496.354496][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7496.354496][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7496.354496][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7496.354496][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7496.354496][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7496.354496][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7496.354496][ T254] addrconf_dad_begin+0x310/0x670 [ 7496.354496][ T254] addrconf_dad_work+0x10b/0xab0 [ 7496.354496][ T254] process_one_work+0x84d/0x18a0 [ 7496.354496][ T254] worker_thread+0x587/0xd30 [ 7496.354496][ T254] kthread+0x28a/0x350 [ 7496.354496][ T254] ret_from_fork+0x31/0x70 [ 7496.354496][ T254] ret_from_fork_asm+0x1a/0x30 [ 7496.354496][ T254] [ 7496.356658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.356658][ T254] netdev_get_by_index+0x5e/0x80 [ 7496.356658][ T254] fib6_nh_init+0x3d8/0x1580 [ 7496.356658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7496.356658][ T254] ip6_route_add+0x1c/0x140 [ 7496.356658][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7496.356658][ T254] inet6_addr_add+0x4f8/0xa40 [ 7496.356658][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7496.356658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7496.356658][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.356658][ T254] netlink_unicast+0x449/0x710 [ 7496.356658][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.356658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.356658][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.356658][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.356658][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.356658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7496.356658][ T254] [ 7496.358906][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.358906][ T254] netdev_get_by_index+0x5e/0x80 [ 7496.358906][ T254] fib6_nh_init+0x3d8/0x1580 [ 7496.358906][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7496.358906][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7496.358906][ T254] ipv6_add_addr+0x411/0x2000 [ 7496.358906][ T254] inet6_addr_add+0x30e/0xa40 [ 7496.358906][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7496.358906][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7496.358906][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.358906][ T254] netlink_unicast+0x449/0x710 [ 7496.358906][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.358906][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.358906][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.358906][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.358906][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.358906][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7496.358906][ T254] [ 7496.361148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.361148][ T254] netdev_get_by_index+0x5e/0x80 [ 7496.361148][ T254] fib6_nh_init+0x3d8/0x1580 [ 7496.361148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7496.361148][ T254] ip6_route_add+0x1c/0x140 [ 7496.361148][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7496.361148][ T254] addrconf_add_dev+0xe2/0x170 [ 7496.361148][ T254] inet6_addr_add+0x12f/0xa40 [ 7496.361148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7496.361148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7496.361148][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.361148][ T254] netlink_unicast+0x449/0x710 [ 7496.361148][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.361148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.361148][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.361148][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.361148][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.361148][ T254] [ 7496.363376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.363376][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7496.363376][ T254] ipv6_find_idev+0x102/0x170 [ 7496.363376][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7496.363376][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7496.363376][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.363376][ T254] netlink_unicast+0x449/0x710 [ 7496.363376][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.363376][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.363376][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.363376][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.363376][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.363376][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7496.363376][ T254] [ 7496.365110][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7496.365110][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7496.365110][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7496.365110][ T254] ipv6_find_idev+0x102/0x170 [ 7496.365110][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7496.365110][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7496.365110][ T254] netlink_rcv_skb+0x130/0x360 [ 7496.365110][ T254] netlink_unicast+0x449/0x710 [ 7496.365110][ T254] netlink_sendmsg+0x723/0xbe0 [ 7496.365110][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7496.365110][ T254] ___sys_sendmsg+0xee/0x170 [ 7496.365110][ T254] __sys_sendmsg+0xcd/0x170 [ 7496.365110][ T254] do_syscall_64+0xc6/0x1e0 [ 7496.365110][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7496.365110][ T254] [ 7506.607767][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7506.608247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.608247][ T254] dst_init+0x84/0x4a0 [ 7506.608247][ T254] dst_alloc+0x97/0x150 [ 7506.608247][ T254] ip6_dst_alloc+0x23/0x90 [ 7506.608247][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7506.608247][ T254] ip6_pol_route+0x56f/0x840 [ 7506.608247][ T254] fib6_rule_lookup+0x334/0x630 [ 7506.608247][ T254] ip6_route_output_flags+0x259/0x480 [ 7506.608247][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7506.608247][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7506.608247][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.608247][ T254] netlink_unicast+0x449/0x710 [ 7506.608247][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.608247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.608247][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.608247][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.608247][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.608247][ T254] [ 7506.610461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.610461][ T254] netdev_get_by_index+0x5e/0x80 [ 7506.610461][ T254] fib6_nh_init+0x3d8/0x1580 [ 7506.610461][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7506.610461][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7506.610461][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7506.610461][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7506.610461][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7506.610461][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7506.610461][ T254] addrconf_dad_begin+0x310/0x670 [ 7506.610461][ T254] addrconf_dad_work+0x10b/0xab0 [ 7506.610461][ T254] process_one_work+0x84d/0x18a0 [ 7506.610461][ T254] worker_thread+0x587/0xd30 [ 7506.610461][ T254] kthread+0x28a/0x350 [ 7506.610461][ T254] ret_from_fork+0x31/0x70 [ 7506.610461][ T254] ret_from_fork_asm+0x1a/0x30 [ 7506.610461][ T254] [ 7506.612624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.612624][ T254] netdev_get_by_index+0x5e/0x80 [ 7506.612624][ T254] fib6_nh_init+0x3d8/0x1580 [ 7506.612624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7506.612624][ T254] ip6_route_add+0x1c/0x140 [ 7506.612624][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7506.612624][ T254] inet6_addr_add+0x4f8/0xa40 [ 7506.612624][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7506.612624][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7506.612624][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.612624][ T254] netlink_unicast+0x449/0x710 [ 7506.612624][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.612624][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.612624][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.612624][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.612624][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.612624][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7506.612624][ T254] [ 7506.614868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.614868][ T254] netdev_get_by_index+0x5e/0x80 [ 7506.614868][ T254] fib6_nh_init+0x3d8/0x1580 [ 7506.614868][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7506.614868][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7506.614868][ T254] ipv6_add_addr+0x411/0x2000 [ 7506.614868][ T254] inet6_addr_add+0x30e/0xa40 [ 7506.614868][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7506.614868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7506.614868][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.614868][ T254] netlink_unicast+0x449/0x710 [ 7506.614868][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.614868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.614868][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.614868][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.614868][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.614868][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7506.614868][ T254] [ 7506.617118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.617118][ T254] netdev_get_by_index+0x5e/0x80 [ 7506.617118][ T254] fib6_nh_init+0x3d8/0x1580 [ 7506.617118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7506.617118][ T254] ip6_route_add+0x1c/0x140 [ 7506.617118][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7506.617118][ T254] addrconf_add_dev+0xe2/0x170 [ 7506.617118][ T254] inet6_addr_add+0x12f/0xa40 [ 7506.617118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7506.617118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7506.617118][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.617118][ T254] netlink_unicast+0x449/0x710 [ 7506.617118][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.617118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.617118][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.617118][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.617118][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.617118][ T254] [ 7506.619324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.619324][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7506.619324][ T254] ipv6_find_idev+0x102/0x170 [ 7506.619324][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7506.619324][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7506.619324][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.619324][ T254] netlink_unicast+0x449/0x710 [ 7506.619324][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.619324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.619324][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.619324][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.619324][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.619324][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7506.619324][ T254] [ 7506.621046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7506.621046][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7506.621046][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7506.621046][ T254] ipv6_find_idev+0x102/0x170 [ 7506.621046][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7506.621046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7506.621046][ T254] netlink_rcv_skb+0x130/0x360 [ 7506.621046][ T254] netlink_unicast+0x449/0x710 [ 7506.621046][ T254] netlink_sendmsg+0x723/0xbe0 [ 7506.621046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7506.621046][ T254] ___sys_sendmsg+0xee/0x170 [ 7506.621046][ T254] __sys_sendmsg+0xcd/0x170 [ 7506.621046][ T254] do_syscall_64+0xc6/0x1e0 [ 7506.621046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7506.621046][ T254] [ 7516.735839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7516.736311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.736311][ T254] dst_init+0x84/0x4a0 [ 7516.736311][ T254] dst_alloc+0x97/0x150 [ 7516.736311][ T254] ip6_dst_alloc+0x23/0x90 [ 7516.736311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7516.736311][ T254] ip6_pol_route+0x56f/0x840 [ 7516.736311][ T254] fib6_rule_lookup+0x334/0x630 [ 7516.736311][ T254] ip6_route_output_flags+0x259/0x480 [ 7516.736311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7516.736311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7516.736311][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.736311][ T254] netlink_unicast+0x449/0x710 [ 7516.736311][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.736311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.736311][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.736311][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.736311][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.736311][ T254] [ 7516.738494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.738494][ T254] netdev_get_by_index+0x5e/0x80 [ 7516.738494][ T254] fib6_nh_init+0x3d8/0x1580 [ 7516.738494][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7516.738494][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7516.738494][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7516.738494][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7516.738494][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7516.738494][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7516.738494][ T254] addrconf_dad_begin+0x310/0x670 [ 7516.738494][ T254] addrconf_dad_work+0x10b/0xab0 [ 7516.738494][ T254] process_one_work+0x84d/0x18a0 [ 7516.738494][ T254] worker_thread+0x587/0xd30 [ 7516.738494][ T254] kthread+0x28a/0x350 [ 7516.738494][ T254] ret_from_fork+0x31/0x70 [ 7516.738494][ T254] ret_from_fork_asm+0x1a/0x30 [ 7516.738494][ T254] [ 7516.740646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.740646][ T254] netdev_get_by_index+0x5e/0x80 [ 7516.740646][ T254] fib6_nh_init+0x3d8/0x1580 [ 7516.740646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7516.740646][ T254] ip6_route_add+0x1c/0x140 [ 7516.740646][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7516.740646][ T254] inet6_addr_add+0x4f8/0xa40 [ 7516.740646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7516.740646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7516.740646][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.740646][ T254] netlink_unicast+0x449/0x710 [ 7516.740646][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.740646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.740646][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.740646][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.740646][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.740646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7516.740646][ T254] [ 7516.742921][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.742921][ T254] netdev_get_by_index+0x5e/0x80 [ 7516.742921][ T254] fib6_nh_init+0x3d8/0x1580 [ 7516.742921][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7516.742921][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7516.742921][ T254] ipv6_add_addr+0x411/0x2000 [ 7516.742921][ T254] inet6_addr_add+0x30e/0xa40 [ 7516.742921][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7516.742921][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7516.742921][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.742921][ T254] netlink_unicast+0x449/0x710 [ 7516.742921][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.742921][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.742921][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.742921][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.742921][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.742921][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7516.742921][ T254] [ 7516.745165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.745165][ T254] netdev_get_by_index+0x5e/0x80 [ 7516.745165][ T254] fib6_nh_init+0x3d8/0x1580 [ 7516.745165][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7516.745165][ T254] ip6_route_add+0x1c/0x140 [ 7516.745165][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7516.745165][ T254] addrconf_add_dev+0xe2/0x170 [ 7516.745165][ T254] inet6_addr_add+0x12f/0xa40 [ 7516.745165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7516.745165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7516.745165][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.745165][ T254] netlink_unicast+0x449/0x710 [ 7516.745165][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.745165][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.745165][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.745165][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.745165][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.745165][ T254] [ 7516.747357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.747357][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7516.747357][ T254] ipv6_find_idev+0x102/0x170 [ 7516.747357][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7516.747357][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7516.747357][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.747357][ T254] netlink_unicast+0x449/0x710 [ 7516.747357][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.747357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.747357][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.747357][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.747357][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.747357][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7516.747357][ T254] [ 7516.749104][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7516.749104][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7516.749104][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7516.749104][ T254] ipv6_find_idev+0x102/0x170 [ 7516.749104][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7516.749104][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7516.749104][ T254] netlink_rcv_skb+0x130/0x360 [ 7516.749104][ T254] netlink_unicast+0x449/0x710 [ 7516.749104][ T254] netlink_sendmsg+0x723/0xbe0 [ 7516.749104][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7516.749104][ T254] ___sys_sendmsg+0xee/0x170 [ 7516.749104][ T254] __sys_sendmsg+0xcd/0x170 [ 7516.749104][ T254] do_syscall_64+0xc6/0x1e0 [ 7516.749104][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7516.749104][ T254] [ 7526.959844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7526.960308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.960308][ T254] dst_init+0x84/0x4a0 [ 7526.960308][ T254] dst_alloc+0x97/0x150 [ 7526.960308][ T254] ip6_dst_alloc+0x23/0x90 [ 7526.960308][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7526.960308][ T254] ip6_pol_route+0x56f/0x840 [ 7526.960308][ T254] fib6_rule_lookup+0x334/0x630 [ 7526.960308][ T254] ip6_route_output_flags+0x259/0x480 [ 7526.960308][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7526.960308][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7526.960308][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.960308][ T254] netlink_unicast+0x449/0x710 [ 7526.960308][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.960308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.960308][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.960308][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.960308][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.960308][ T254] [ 7526.962514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.962514][ T254] netdev_get_by_index+0x5e/0x80 [ 7526.962514][ T254] fib6_nh_init+0x3d8/0x1580 [ 7526.962514][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7526.962514][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7526.962514][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7526.962514][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7526.962514][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7526.962514][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7526.962514][ T254] addrconf_dad_begin+0x310/0x670 [ 7526.962514][ T254] addrconf_dad_work+0x10b/0xab0 [ 7526.962514][ T254] process_one_work+0x84d/0x18a0 [ 7526.962514][ T254] worker_thread+0x587/0xd30 [ 7526.962514][ T254] kthread+0x28a/0x350 [ 7526.962514][ T254] ret_from_fork+0x31/0x70 [ 7526.962514][ T254] ret_from_fork_asm+0x1a/0x30 [ 7526.962514][ T254] [ 7526.964661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.964661][ T254] netdev_get_by_index+0x5e/0x80 [ 7526.964661][ T254] fib6_nh_init+0x3d8/0x1580 [ 7526.964661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7526.964661][ T254] ip6_route_add+0x1c/0x140 [ 7526.964661][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7526.964661][ T254] inet6_addr_add+0x4f8/0xa40 [ 7526.964661][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7526.964661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7526.964661][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.964661][ T254] netlink_unicast+0x449/0x710 [ 7526.964661][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.964661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.964661][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.964661][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.964661][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.964661][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7526.964661][ T254] [ 7526.966935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.966935][ T254] netdev_get_by_index+0x5e/0x80 [ 7526.966935][ T254] fib6_nh_init+0x3d8/0x1580 [ 7526.966935][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7526.966935][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7526.966935][ T254] ipv6_add_addr+0x411/0x2000 [ 7526.966935][ T254] inet6_addr_add+0x30e/0xa40 [ 7526.966935][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7526.966935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7526.966935][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.966935][ T254] netlink_unicast+0x449/0x710 [ 7526.966935][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.966935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.966935][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.966935][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.966935][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.966935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7526.966935][ T254] [ 7526.969174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.969174][ T254] netdev_get_by_index+0x5e/0x80 [ 7526.969174][ T254] fib6_nh_init+0x3d8/0x1580 [ 7526.969174][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7526.969174][ T254] ip6_route_add+0x1c/0x140 [ 7526.969174][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7526.969174][ T254] addrconf_add_dev+0xe2/0x170 [ 7526.969174][ T254] inet6_addr_add+0x12f/0xa40 [ 7526.969174][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7526.969174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7526.969174][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.969174][ T254] netlink_unicast+0x449/0x710 [ 7526.969174][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.969174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.969174][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.969174][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.969174][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.969174][ T254] [ 7526.971372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.971372][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7526.971372][ T254] ipv6_find_idev+0x102/0x170 [ 7526.971372][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7526.971372][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7526.971372][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.971372][ T254] netlink_unicast+0x449/0x710 [ 7526.971372][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.971372][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.971372][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.971372][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.971372][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.971372][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7526.971372][ T254] [ 7526.973101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7526.973101][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7526.973101][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7526.973101][ T254] ipv6_find_idev+0x102/0x170 [ 7526.973101][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7526.973101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7526.973101][ T254] netlink_rcv_skb+0x130/0x360 [ 7526.973101][ T254] netlink_unicast+0x449/0x710 [ 7526.973101][ T254] netlink_sendmsg+0x723/0xbe0 [ 7526.973101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7526.973101][ T254] ___sys_sendmsg+0xee/0x170 [ 7526.973101][ T254] __sys_sendmsg+0xcd/0x170 [ 7526.973101][ T254] do_syscall_64+0xc6/0x1e0 [ 7526.973101][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7526.973101][ T254] [ 7537.215843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7537.216320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.216320][ T254] dst_init+0x84/0x4a0 [ 7537.216320][ T254] dst_alloc+0x97/0x150 [ 7537.216320][ T254] ip6_dst_alloc+0x23/0x90 [ 7537.216320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7537.216320][ T254] ip6_pol_route+0x56f/0x840 [ 7537.216320][ T254] fib6_rule_lookup+0x334/0x630 [ 7537.216320][ T254] ip6_route_output_flags+0x259/0x480 [ 7537.216320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7537.216320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7537.216320][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.216320][ T254] netlink_unicast+0x449/0x710 [ 7537.216320][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.216320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.216320][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.216320][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.216320][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.216320][ T254] [ 7537.218524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.218524][ T254] netdev_get_by_index+0x5e/0x80 [ 7537.218524][ T254] fib6_nh_init+0x3d8/0x1580 [ 7537.218524][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7537.218524][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7537.218524][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7537.218524][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7537.218524][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7537.218524][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7537.218524][ T254] addrconf_dad_begin+0x310/0x670 [ 7537.218524][ T254] addrconf_dad_work+0x10b/0xab0 [ 7537.218524][ T254] process_one_work+0x84d/0x18a0 [ 7537.218524][ T254] worker_thread+0x587/0xd30 [ 7537.218524][ T254] kthread+0x28a/0x350 [ 7537.218524][ T254] ret_from_fork+0x31/0x70 [ 7537.218524][ T254] ret_from_fork_asm+0x1a/0x30 [ 7537.218524][ T254] [ 7537.220669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.220669][ T254] netdev_get_by_index+0x5e/0x80 [ 7537.220669][ T254] fib6_nh_init+0x3d8/0x1580 [ 7537.220669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7537.220669][ T254] ip6_route_add+0x1c/0x140 [ 7537.220669][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7537.220669][ T254] inet6_addr_add+0x4f8/0xa40 [ 7537.220669][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7537.220669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7537.220669][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.220669][ T254] netlink_unicast+0x449/0x710 [ 7537.220669][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.220669][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.220669][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.220669][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.220669][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.220669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7537.220669][ T254] [ 7537.222929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.222929][ T254] netdev_get_by_index+0x5e/0x80 [ 7537.222929][ T254] fib6_nh_init+0x3d8/0x1580 [ 7537.222929][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7537.222929][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7537.222929][ T254] ipv6_add_addr+0x411/0x2000 [ 7537.222929][ T254] inet6_addr_add+0x30e/0xa40 [ 7537.222929][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7537.222929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7537.222929][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.222929][ T254] netlink_unicast+0x449/0x710 [ 7537.222929][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.222929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.222929][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.222929][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.222929][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.222929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7537.222929][ T254] [ 7537.225194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.225194][ T254] netdev_get_by_index+0x5e/0x80 [ 7537.225194][ T254] fib6_nh_init+0x3d8/0x1580 [ 7537.225194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7537.225194][ T254] ip6_route_add+0x1c/0x140 [ 7537.225194][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7537.225194][ T254] addrconf_add_dev+0xe2/0x170 [ 7537.225194][ T254] inet6_addr_add+0x12f/0xa40 [ 7537.225194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7537.225194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7537.225194][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.225194][ T254] netlink_unicast+0x449/0x710 [ 7537.225194][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.225194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.225194][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.225194][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.225194][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.225194][ T254] [ 7537.227392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.227392][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7537.227392][ T254] ipv6_find_idev+0x102/0x170 [ 7537.227392][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7537.227392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7537.227392][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.227392][ T254] netlink_unicast+0x449/0x710 [ 7537.227392][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.227392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.227392][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.227392][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.227392][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.227392][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7537.227392][ T254] [ 7537.229119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7537.229119][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7537.229119][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7537.229119][ T254] ipv6_find_idev+0x102/0x170 [ 7537.229119][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7537.229119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7537.229119][ T254] netlink_rcv_skb+0x130/0x360 [ 7537.229119][ T254] netlink_unicast+0x449/0x710 [ 7537.229119][ T254] netlink_sendmsg+0x723/0xbe0 [ 7537.229119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7537.229119][ T254] ___sys_sendmsg+0xee/0x170 [ 7537.229119][ T254] __sys_sendmsg+0xcd/0x170 [ 7537.229119][ T254] do_syscall_64+0xc6/0x1e0 [ 7537.229119][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7537.229119][ T254] [ 7547.471788][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7547.472266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.472266][ T254] dst_init+0x84/0x4a0 [ 7547.472266][ T254] dst_alloc+0x97/0x150 [ 7547.472266][ T254] ip6_dst_alloc+0x23/0x90 [ 7547.472266][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7547.472266][ T254] ip6_pol_route+0x56f/0x840 [ 7547.472266][ T254] fib6_rule_lookup+0x334/0x630 [ 7547.472266][ T254] ip6_route_output_flags+0x259/0x480 [ 7547.472266][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7547.472266][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7547.472266][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.472266][ T254] netlink_unicast+0x449/0x710 [ 7547.472266][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.472266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.472266][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.472266][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.472266][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.472266][ T254] [ 7547.474464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.474464][ T254] netdev_get_by_index+0x5e/0x80 [ 7547.474464][ T254] fib6_nh_init+0x3d8/0x1580 [ 7547.474464][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7547.474464][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7547.474464][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7547.474464][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7547.474464][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7547.474464][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7547.474464][ T254] addrconf_dad_begin+0x310/0x670 [ 7547.474464][ T254] addrconf_dad_work+0x10b/0xab0 [ 7547.474464][ T254] process_one_work+0x84d/0x18a0 [ 7547.474464][ T254] worker_thread+0x587/0xd30 [ 7547.474464][ T254] kthread+0x28a/0x350 [ 7547.474464][ T254] ret_from_fork+0x31/0x70 [ 7547.474464][ T254] ret_from_fork_asm+0x1a/0x30 [ 7547.474464][ T254] [ 7547.476604][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.476604][ T254] netdev_get_by_index+0x5e/0x80 [ 7547.476604][ T254] fib6_nh_init+0x3d8/0x1580 [ 7547.476604][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7547.476604][ T254] ip6_route_add+0x1c/0x140 [ 7547.476604][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7547.476604][ T254] inet6_addr_add+0x4f8/0xa40 [ 7547.476604][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7547.476604][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7547.476604][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.476604][ T254] netlink_unicast+0x449/0x710 [ 7547.476604][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.476604][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.476604][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.476604][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.476604][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.476604][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7547.476604][ T254] [ 7547.478835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.478835][ T254] netdev_get_by_index+0x5e/0x80 [ 7547.478835][ T254] fib6_nh_init+0x3d8/0x1580 [ 7547.478835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7547.478835][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7547.478835][ T254] ipv6_add_addr+0x411/0x2000 [ 7547.478835][ T254] inet6_addr_add+0x30e/0xa40 [ 7547.478835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7547.478835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7547.478835][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.478835][ T254] netlink_unicast+0x449/0x710 [ 7547.478835][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.478835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.478835][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.478835][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.478835][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.478835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7547.478835][ T254] [ 7547.481072][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.481072][ T254] netdev_get_by_index+0x5e/0x80 [ 7547.481072][ T254] fib6_nh_init+0x3d8/0x1580 [ 7547.481072][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7547.481072][ T254] ip6_route_add+0x1c/0x140 [ 7547.481072][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7547.481072][ T254] addrconf_add_dev+0xe2/0x170 [ 7547.481072][ T254] inet6_addr_add+0x12f/0xa40 [ 7547.481072][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7547.481072][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7547.481072][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.481072][ T254] netlink_unicast+0x449/0x710 [ 7547.481072][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.481072][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.481072][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.481072][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.481072][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.481072][ T254] [ 7547.483280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.483280][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7547.483280][ T254] ipv6_find_idev+0x102/0x170 [ 7547.483280][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7547.483280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7547.483280][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.483280][ T254] netlink_unicast+0x449/0x710 [ 7547.483280][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.483280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.483280][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.483280][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.483280][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.483280][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7547.483280][ T254] [ 7547.484996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7547.484996][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7547.484996][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7547.484996][ T254] ipv6_find_idev+0x102/0x170 [ 7547.484996][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7547.484996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7547.484996][ T254] netlink_rcv_skb+0x130/0x360 [ 7547.484996][ T254] netlink_unicast+0x449/0x710 [ 7547.484996][ T254] netlink_sendmsg+0x723/0xbe0 [ 7547.484996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7547.484996][ T254] ___sys_sendmsg+0xee/0x170 [ 7547.484996][ T254] __sys_sendmsg+0xcd/0x170 [ 7547.484996][ T254] do_syscall_64+0xc6/0x1e0 [ 7547.484996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7547.484996][ T254] [ 7557.727828][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7557.728311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.728311][ T254] dst_init+0x84/0x4a0 [ 7557.728311][ T254] dst_alloc+0x97/0x150 [ 7557.728311][ T254] ip6_dst_alloc+0x23/0x90 [ 7557.728311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7557.728311][ T254] ip6_pol_route+0x56f/0x840 [ 7557.728311][ T254] fib6_rule_lookup+0x334/0x630 [ 7557.728311][ T254] ip6_route_output_flags+0x259/0x480 [ 7557.728311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7557.728311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7557.728311][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.728311][ T254] netlink_unicast+0x449/0x710 [ 7557.728311][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.728311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.728311][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.728311][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.728311][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.728311][ T254] [ 7557.730504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.730504][ T254] netdev_get_by_index+0x5e/0x80 [ 7557.730504][ T254] fib6_nh_init+0x3d8/0x1580 [ 7557.730504][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7557.730504][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7557.730504][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7557.730504][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7557.730504][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7557.730504][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7557.730504][ T254] addrconf_dad_begin+0x310/0x670 [ 7557.730504][ T254] addrconf_dad_work+0x10b/0xab0 [ 7557.730504][ T254] process_one_work+0x84d/0x18a0 [ 7557.730504][ T254] worker_thread+0x587/0xd30 [ 7557.730504][ T254] kthread+0x28a/0x350 [ 7557.730504][ T254] ret_from_fork+0x31/0x70 [ 7557.730504][ T254] ret_from_fork_asm+0x1a/0x30 [ 7557.730504][ T254] [ 7557.732653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.732653][ T254] netdev_get_by_index+0x5e/0x80 [ 7557.732653][ T254] fib6_nh_init+0x3d8/0x1580 [ 7557.732653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7557.732653][ T254] ip6_route_add+0x1c/0x140 [ 7557.732653][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7557.732653][ T254] inet6_addr_add+0x4f8/0xa40 [ 7557.732653][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7557.732653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7557.732653][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.732653][ T254] netlink_unicast+0x449/0x710 [ 7557.732653][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.732653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.732653][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.732653][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.732653][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.732653][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7557.732653][ T254] [ 7557.734896][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.734896][ T254] netdev_get_by_index+0x5e/0x80 [ 7557.734896][ T254] fib6_nh_init+0x3d8/0x1580 [ 7557.734896][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7557.734896][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7557.734896][ T254] ipv6_add_addr+0x411/0x2000 [ 7557.734896][ T254] inet6_addr_add+0x30e/0xa40 [ 7557.734896][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7557.734896][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7557.734896][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.734896][ T254] netlink_unicast+0x449/0x710 [ 7557.734896][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.734896][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.734896][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.734896][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.734896][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.734896][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7557.734896][ T254] [ 7557.737140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.737140][ T254] netdev_get_by_index+0x5e/0x80 [ 7557.737140][ T254] fib6_nh_init+0x3d8/0x1580 [ 7557.737140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7557.737140][ T254] ip6_route_add+0x1c/0x140 [ 7557.737140][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7557.737140][ T254] addrconf_add_dev+0xe2/0x170 [ 7557.737140][ T254] inet6_addr_add+0x12f/0xa40 [ 7557.737140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7557.737140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7557.737140][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.737140][ T254] netlink_unicast+0x449/0x710 [ 7557.737140][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.737140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.737140][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.737140][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.737140][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.737140][ T254] [ 7557.739341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.739341][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7557.739341][ T254] ipv6_find_idev+0x102/0x170 [ 7557.739341][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7557.739341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7557.739341][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.739341][ T254] netlink_unicast+0x449/0x710 [ 7557.739341][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.739341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.739341][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.739341][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.739341][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.739341][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7557.739341][ T254] [ 7557.741063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7557.741063][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7557.741063][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7557.741063][ T254] ipv6_find_idev+0x102/0x170 [ 7557.741063][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7557.741063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7557.741063][ T254] netlink_rcv_skb+0x130/0x360 [ 7557.741063][ T254] netlink_unicast+0x449/0x710 [ 7557.741063][ T254] netlink_sendmsg+0x723/0xbe0 [ 7557.741063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7557.741063][ T254] ___sys_sendmsg+0xee/0x170 [ 7557.741063][ T254] __sys_sendmsg+0xcd/0x170 [ 7557.741063][ T254] do_syscall_64+0xc6/0x1e0 [ 7557.741063][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7557.741063][ T254] [ 7567.983853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7567.984370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.984370][ T254] dst_init+0x84/0x4a0 [ 7567.984370][ T254] dst_alloc+0x97/0x150 [ 7567.984370][ T254] ip6_dst_alloc+0x23/0x90 [ 7567.984370][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7567.984370][ T254] ip6_pol_route+0x56f/0x840 [ 7567.984370][ T254] fib6_rule_lookup+0x334/0x630 [ 7567.984370][ T254] ip6_route_output_flags+0x259/0x480 [ 7567.984370][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7567.984370][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7567.984370][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.984370][ T254] netlink_unicast+0x449/0x710 [ 7567.984370][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.984370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.984370][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.984370][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.984370][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.984370][ T254] [ 7567.986568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.986568][ T254] netdev_get_by_index+0x5e/0x80 [ 7567.986568][ T254] fib6_nh_init+0x3d8/0x1580 [ 7567.986568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7567.986568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7567.986568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7567.986568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7567.986568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7567.986568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7567.986568][ T254] addrconf_dad_begin+0x310/0x670 [ 7567.986568][ T254] addrconf_dad_work+0x10b/0xab0 [ 7567.986568][ T254] process_one_work+0x84d/0x18a0 [ 7567.986568][ T254] worker_thread+0x587/0xd30 [ 7567.986568][ T254] kthread+0x28a/0x350 [ 7567.986568][ T254] ret_from_fork+0x31/0x70 [ 7567.986568][ T254] ret_from_fork_asm+0x1a/0x30 [ 7567.986568][ T254] [ 7567.988707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.988707][ T254] netdev_get_by_index+0x5e/0x80 [ 7567.988707][ T254] fib6_nh_init+0x3d8/0x1580 [ 7567.988707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7567.988707][ T254] ip6_route_add+0x1c/0x140 [ 7567.988707][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7567.988707][ T254] inet6_addr_add+0x4f8/0xa40 [ 7567.988707][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7567.988707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7567.988707][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.988707][ T254] netlink_unicast+0x449/0x710 [ 7567.988707][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.988707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.988707][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.988707][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.988707][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.988707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7567.988707][ T254] [ 7567.990938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.990938][ T254] netdev_get_by_index+0x5e/0x80 [ 7567.990938][ T254] fib6_nh_init+0x3d8/0x1580 [ 7567.990938][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7567.990938][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7567.990938][ T254] ipv6_add_addr+0x411/0x2000 [ 7567.990938][ T254] inet6_addr_add+0x30e/0xa40 [ 7567.990938][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7567.990938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7567.990938][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.990938][ T254] netlink_unicast+0x449/0x710 [ 7567.990938][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.990938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.990938][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.990938][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.990938][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.990938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7567.990938][ T254] [ 7567.993199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.993199][ T254] netdev_get_by_index+0x5e/0x80 [ 7567.993199][ T254] fib6_nh_init+0x3d8/0x1580 [ 7567.993199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7567.993199][ T254] ip6_route_add+0x1c/0x140 [ 7567.993199][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7567.993199][ T254] addrconf_add_dev+0xe2/0x170 [ 7567.993199][ T254] inet6_addr_add+0x12f/0xa40 [ 7567.993199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7567.993199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7567.993199][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.993199][ T254] netlink_unicast+0x449/0x710 [ 7567.993199][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.993199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.993199][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.993199][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.993199][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.993199][ T254] [ 7567.995396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.995396][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7567.995396][ T254] ipv6_find_idev+0x102/0x170 [ 7567.995396][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7567.995396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7567.995396][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.995396][ T254] netlink_unicast+0x449/0x710 [ 7567.995396][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.995396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.995396][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.995396][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.995396][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.995396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7567.995396][ T254] [ 7567.997119][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7567.997119][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7567.997119][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7567.997119][ T254] ipv6_find_idev+0x102/0x170 [ 7567.997119][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7567.997119][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7567.997119][ T254] netlink_rcv_skb+0x130/0x360 [ 7567.997119][ T254] netlink_unicast+0x449/0x710 [ 7567.997119][ T254] netlink_sendmsg+0x723/0xbe0 [ 7567.997119][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7567.997119][ T254] ___sys_sendmsg+0xee/0x170 [ 7567.997119][ T254] __sys_sendmsg+0xcd/0x170 [ 7567.997119][ T254] do_syscall_64+0xc6/0x1e0 [ 7567.997119][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7567.997119][ T254] [ 7578.239854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7578.240373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.240373][ T254] dst_init+0x84/0x4a0 [ 7578.240373][ T254] dst_alloc+0x97/0x150 [ 7578.240373][ T254] ip6_dst_alloc+0x23/0x90 [ 7578.240373][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7578.240373][ T254] ip6_pol_route+0x56f/0x840 [ 7578.240373][ T254] fib6_rule_lookup+0x334/0x630 [ 7578.240373][ T254] ip6_route_output_flags+0x259/0x480 [ 7578.240373][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7578.240373][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7578.240373][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.240373][ T254] netlink_unicast+0x449/0x710 [ 7578.240373][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.240373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.240373][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.240373][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.240373][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.240373][ T254] [ 7578.242590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.242590][ T254] netdev_get_by_index+0x5e/0x80 [ 7578.242590][ T254] fib6_nh_init+0x3d8/0x1580 [ 7578.242590][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7578.242590][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7578.242590][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7578.242590][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7578.242590][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7578.242590][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7578.242590][ T254] addrconf_dad_begin+0x310/0x670 [ 7578.242590][ T254] addrconf_dad_work+0x10b/0xab0 [ 7578.242590][ T254] process_one_work+0x84d/0x18a0 [ 7578.242590][ T254] worker_thread+0x587/0xd30 [ 7578.242590][ T254] kthread+0x28a/0x350 [ 7578.242590][ T254] ret_from_fork+0x31/0x70 [ 7578.242590][ T254] ret_from_fork_asm+0x1a/0x30 [ 7578.242590][ T254] [ 7578.244725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.244725][ T254] netdev_get_by_index+0x5e/0x80 [ 7578.244725][ T254] fib6_nh_init+0x3d8/0x1580 [ 7578.244725][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7578.244725][ T254] ip6_route_add+0x1c/0x140 [ 7578.244725][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7578.244725][ T254] inet6_addr_add+0x4f8/0xa40 [ 7578.244725][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7578.244725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7578.244725][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.244725][ T254] netlink_unicast+0x449/0x710 [ 7578.244725][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.244725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.244725][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.244725][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.244725][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.244725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7578.244725][ T254] [ 7578.246964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.246964][ T254] netdev_get_by_index+0x5e/0x80 [ 7578.246964][ T254] fib6_nh_init+0x3d8/0x1580 [ 7578.246964][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7578.246964][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7578.246964][ T254] ipv6_add_addr+0x411/0x2000 [ 7578.246964][ T254] inet6_addr_add+0x30e/0xa40 [ 7578.246964][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7578.246964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7578.246964][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.246964][ T254] netlink_unicast+0x449/0x710 [ 7578.246964][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.246964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.246964][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.246964][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.246964][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.246964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7578.246964][ T254] [ 7578.249198][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.249198][ T254] netdev_get_by_index+0x5e/0x80 [ 7578.249198][ T254] fib6_nh_init+0x3d8/0x1580 [ 7578.249198][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7578.249198][ T254] ip6_route_add+0x1c/0x140 [ 7578.249198][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7578.249198][ T254] addrconf_add_dev+0xe2/0x170 [ 7578.249198][ T254] inet6_addr_add+0x12f/0xa40 [ 7578.249198][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7578.249198][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7578.249198][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.249198][ T254] netlink_unicast+0x449/0x710 [ 7578.249198][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.249198][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.249198][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.249198][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.249198][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.249198][ T254] [ 7578.251391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.251391][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7578.251391][ T254] ipv6_find_idev+0x102/0x170 [ 7578.251391][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7578.251391][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7578.251391][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.251391][ T254] netlink_unicast+0x449/0x710 [ 7578.251391][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.251391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.251391][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.251391][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.251391][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.251391][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7578.251391][ T254] [ 7578.253116][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7578.253116][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7578.253116][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7578.253116][ T254] ipv6_find_idev+0x102/0x170 [ 7578.253116][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7578.253116][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7578.253116][ T254] netlink_rcv_skb+0x130/0x360 [ 7578.253116][ T254] netlink_unicast+0x449/0x710 [ 7578.253116][ T254] netlink_sendmsg+0x723/0xbe0 [ 7578.253116][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7578.253116][ T254] ___sys_sendmsg+0xee/0x170 [ 7578.253116][ T254] __sys_sendmsg+0xcd/0x170 [ 7578.253116][ T254] do_syscall_64+0xc6/0x1e0 [ 7578.253116][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7578.253116][ T254] [ 7588.351848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7588.352341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.352341][ T254] dst_init+0x84/0x4a0 [ 7588.352341][ T254] dst_alloc+0x97/0x150 [ 7588.352341][ T254] ip6_dst_alloc+0x23/0x90 [ 7588.352341][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7588.352341][ T254] ip6_pol_route+0x56f/0x840 [ 7588.352341][ T254] fib6_rule_lookup+0x334/0x630 [ 7588.352341][ T254] ip6_route_output_flags+0x259/0x480 [ 7588.352341][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7588.352341][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7588.352341][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.352341][ T254] netlink_unicast+0x449/0x710 [ 7588.352341][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.352341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.352341][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.352341][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.352341][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.352341][ T254] [ 7588.354530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.354530][ T254] netdev_get_by_index+0x5e/0x80 [ 7588.354530][ T254] fib6_nh_init+0x3d8/0x1580 [ 7588.354530][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7588.354530][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7588.354530][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7588.354530][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7588.354530][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7588.354530][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7588.354530][ T254] addrconf_dad_begin+0x310/0x670 [ 7588.354530][ T254] addrconf_dad_work+0x10b/0xab0 [ 7588.354530][ T254] process_one_work+0x84d/0x18a0 [ 7588.354530][ T254] worker_thread+0x587/0xd30 [ 7588.354530][ T254] kthread+0x28a/0x350 [ 7588.354530][ T254] ret_from_fork+0x31/0x70 [ 7588.354530][ T254] ret_from_fork_asm+0x1a/0x30 [ 7588.354530][ T254] [ 7588.356683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.356683][ T254] netdev_get_by_index+0x5e/0x80 [ 7588.356683][ T254] fib6_nh_init+0x3d8/0x1580 [ 7588.356683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7588.356683][ T254] ip6_route_add+0x1c/0x140 [ 7588.356683][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7588.356683][ T254] inet6_addr_add+0x4f8/0xa40 [ 7588.356683][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7588.356683][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7588.356683][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.356683][ T254] netlink_unicast+0x449/0x710 [ 7588.356683][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.356683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.356683][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.356683][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.356683][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.356683][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7588.356683][ T254] [ 7588.358926][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.358926][ T254] netdev_get_by_index+0x5e/0x80 [ 7588.358926][ T254] fib6_nh_init+0x3d8/0x1580 [ 7588.358926][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7588.358926][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7588.358926][ T254] ipv6_add_addr+0x411/0x2000 [ 7588.358926][ T254] inet6_addr_add+0x30e/0xa40 [ 7588.358926][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7588.358926][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7588.358926][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.358926][ T254] netlink_unicast+0x449/0x710 [ 7588.358926][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.358926][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.358926][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.358926][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.358926][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.358926][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7588.358926][ T254] [ 7588.361166][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.361166][ T254] netdev_get_by_index+0x5e/0x80 [ 7588.361166][ T254] fib6_nh_init+0x3d8/0x1580 [ 7588.361166][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7588.361166][ T254] ip6_route_add+0x1c/0x140 [ 7588.361166][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7588.361166][ T254] addrconf_add_dev+0xe2/0x170 [ 7588.361166][ T254] inet6_addr_add+0x12f/0xa40 [ 7588.361166][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7588.361166][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7588.361166][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.361166][ T254] netlink_unicast+0x449/0x710 [ 7588.361166][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.361166][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.361166][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.361166][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.361166][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.361166][ T254] [ 7588.363373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.363373][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7588.363373][ T254] ipv6_find_idev+0x102/0x170 [ 7588.363373][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7588.363373][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7588.363373][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.363373][ T254] netlink_unicast+0x449/0x710 [ 7588.363373][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.363373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.363373][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.363373][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.363373][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.363373][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7588.363373][ T254] [ 7588.365097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7588.365097][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7588.365097][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7588.365097][ T254] ipv6_find_idev+0x102/0x170 [ 7588.365097][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7588.365097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7588.365097][ T254] netlink_rcv_skb+0x130/0x360 [ 7588.365097][ T254] netlink_unicast+0x449/0x710 [ 7588.365097][ T254] netlink_sendmsg+0x723/0xbe0 [ 7588.365097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7588.365097][ T254] ___sys_sendmsg+0xee/0x170 [ 7588.365097][ T254] __sys_sendmsg+0xcd/0x170 [ 7588.365097][ T254] do_syscall_64+0xc6/0x1e0 [ 7588.365097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7588.365097][ T254] [ 7598.607866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7598.608348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.608348][ T254] dst_init+0x84/0x4a0 [ 7598.608348][ T254] dst_alloc+0x97/0x150 [ 7598.608348][ T254] ip6_dst_alloc+0x23/0x90 [ 7598.608348][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7598.608348][ T254] ip6_pol_route+0x56f/0x840 [ 7598.608348][ T254] fib6_rule_lookup+0x334/0x630 [ 7598.608348][ T254] ip6_route_output_flags+0x259/0x480 [ 7598.608348][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7598.608348][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7598.608348][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.608348][ T254] netlink_unicast+0x449/0x710 [ 7598.608348][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.608348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.608348][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.608348][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.608348][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.608348][ T254] [ 7598.610564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.610564][ T254] netdev_get_by_index+0x5e/0x80 [ 7598.610564][ T254] fib6_nh_init+0x3d8/0x1580 [ 7598.610564][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7598.610564][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7598.610564][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7598.610564][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7598.610564][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7598.610564][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7598.610564][ T254] addrconf_dad_begin+0x310/0x670 [ 7598.610564][ T254] addrconf_dad_work+0x10b/0xab0 [ 7598.610564][ T254] process_one_work+0x84d/0x18a0 [ 7598.610564][ T254] worker_thread+0x587/0xd30 [ 7598.610564][ T254] kthread+0x28a/0x350 [ 7598.610564][ T254] ret_from_fork+0x31/0x70 [ 7598.610564][ T254] ret_from_fork_asm+0x1a/0x30 [ 7598.610564][ T254] [ 7598.612737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.612737][ T254] netdev_get_by_index+0x5e/0x80 [ 7598.612737][ T254] fib6_nh_init+0x3d8/0x1580 [ 7598.612737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7598.612737][ T254] ip6_route_add+0x1c/0x140 [ 7598.612737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7598.612737][ T254] inet6_addr_add+0x4f8/0xa40 [ 7598.612737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7598.612737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7598.612737][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.612737][ T254] netlink_unicast+0x449/0x710 [ 7598.612737][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.612737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.612737][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.612737][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.612737][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.612737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7598.612737][ T254] [ 7598.615008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.615008][ T254] netdev_get_by_index+0x5e/0x80 [ 7598.615008][ T254] fib6_nh_init+0x3d8/0x1580 [ 7598.615008][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7598.615008][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7598.615008][ T254] ipv6_add_addr+0x411/0x2000 [ 7598.615008][ T254] inet6_addr_add+0x30e/0xa40 [ 7598.615008][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7598.615008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7598.615008][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.615008][ T254] netlink_unicast+0x449/0x710 [ 7598.615008][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.615008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.615008][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.615008][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.615008][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.615008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7598.615008][ T254] [ 7598.617262][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.617262][ T254] netdev_get_by_index+0x5e/0x80 [ 7598.617262][ T254] fib6_nh_init+0x3d8/0x1580 [ 7598.617262][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7598.617262][ T254] ip6_route_add+0x1c/0x140 [ 7598.617262][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7598.617262][ T254] addrconf_add_dev+0xe2/0x170 [ 7598.617262][ T254] inet6_addr_add+0x12f/0xa40 [ 7598.617262][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7598.617262][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7598.617262][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.617262][ T254] netlink_unicast+0x449/0x710 [ 7598.617262][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.617262][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.617262][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.617262][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.617262][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.617262][ T254] [ 7598.619480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.619480][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7598.619480][ T254] ipv6_find_idev+0x102/0x170 [ 7598.619480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7598.619480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7598.619480][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.619480][ T254] netlink_unicast+0x449/0x710 [ 7598.619480][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.619480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.619480][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.619480][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.619480][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.619480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7598.619480][ T254] [ 7598.621214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7598.621214][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7598.621214][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7598.621214][ T254] ipv6_find_idev+0x102/0x170 [ 7598.621214][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7598.621214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7598.621214][ T254] netlink_rcv_skb+0x130/0x360 [ 7598.621214][ T254] netlink_unicast+0x449/0x710 [ 7598.621214][ T254] netlink_sendmsg+0x723/0xbe0 [ 7598.621214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7598.621214][ T254] ___sys_sendmsg+0xee/0x170 [ 7598.621214][ T254] __sys_sendmsg+0xcd/0x170 [ 7598.621214][ T254] do_syscall_64+0xc6/0x1e0 [ 7598.621214][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7598.621214][ T254] [ 7608.863854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7608.864346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.864346][ T254] dst_init+0x84/0x4a0 [ 7608.864346][ T254] dst_alloc+0x97/0x150 [ 7608.864346][ T254] ip6_dst_alloc+0x23/0x90 [ 7608.864346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7608.864346][ T254] ip6_pol_route+0x56f/0x840 [ 7608.864346][ T254] fib6_rule_lookup+0x334/0x630 [ 7608.864346][ T254] ip6_route_output_flags+0x259/0x480 [ 7608.864346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7608.864346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7608.864346][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.864346][ T254] netlink_unicast+0x449/0x710 [ 7608.864346][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.864346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.864346][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.864346][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.864346][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.864346][ T254] [ 7608.866564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.866564][ T254] netdev_get_by_index+0x5e/0x80 [ 7608.866564][ T254] fib6_nh_init+0x3d8/0x1580 [ 7608.866564][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7608.866564][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7608.866564][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7608.866564][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7608.866564][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7608.866564][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7608.866564][ T254] addrconf_dad_begin+0x310/0x670 [ 7608.866564][ T254] addrconf_dad_work+0x10b/0xab0 [ 7608.866564][ T254] process_one_work+0x84d/0x18a0 [ 7608.866564][ T254] worker_thread+0x587/0xd30 [ 7608.866564][ T254] kthread+0x28a/0x350 [ 7608.866564][ T254] ret_from_fork+0x31/0x70 [ 7608.866564][ T254] ret_from_fork_asm+0x1a/0x30 [ 7608.866564][ T254] [ 7608.868751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.868751][ T254] netdev_get_by_index+0x5e/0x80 [ 7608.868751][ T254] fib6_nh_init+0x3d8/0x1580 [ 7608.868751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7608.868751][ T254] ip6_route_add+0x1c/0x140 [ 7608.868751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7608.868751][ T254] inet6_addr_add+0x4f8/0xa40 [ 7608.868751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7608.868751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7608.868751][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.868751][ T254] netlink_unicast+0x449/0x710 [ 7608.868751][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.868751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.868751][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.868751][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.868751][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.868751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7608.868751][ T254] [ 7608.871013][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.871013][ T254] netdev_get_by_index+0x5e/0x80 [ 7608.871013][ T254] fib6_nh_init+0x3d8/0x1580 [ 7608.871013][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7608.871013][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7608.871013][ T254] ipv6_add_addr+0x411/0x2000 [ 7608.871013][ T254] inet6_addr_add+0x30e/0xa40 [ 7608.871013][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7608.871013][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7608.871013][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.871013][ T254] netlink_unicast+0x449/0x710 [ 7608.871013][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.871013][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.871013][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.871013][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.871013][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.871013][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7608.871013][ T254] [ 7608.873288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.873288][ T254] netdev_get_by_index+0x5e/0x80 [ 7608.873288][ T254] fib6_nh_init+0x3d8/0x1580 [ 7608.873288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7608.873288][ T254] ip6_route_add+0x1c/0x140 [ 7608.873288][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7608.873288][ T254] addrconf_add_dev+0xe2/0x170 [ 7608.873288][ T254] inet6_addr_add+0x12f/0xa40 [ 7608.873288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7608.873288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7608.873288][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.873288][ T254] netlink_unicast+0x449/0x710 [ 7608.873288][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.873288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.873288][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.873288][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.873288][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.873288][ T254] [ 7608.875502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.875502][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7608.875502][ T254] ipv6_find_idev+0x102/0x170 [ 7608.875502][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7608.875502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7608.875502][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.875502][ T254] netlink_unicast+0x449/0x710 [ 7608.875502][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.875502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.875502][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.875502][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.875502][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.875502][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7608.875502][ T254] [ 7608.877238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7608.877238][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7608.877238][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7608.877238][ T254] ipv6_find_idev+0x102/0x170 [ 7608.877238][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7608.877238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7608.877238][ T254] netlink_rcv_skb+0x130/0x360 [ 7608.877238][ T254] netlink_unicast+0x449/0x710 [ 7608.877238][ T254] netlink_sendmsg+0x723/0xbe0 [ 7608.877238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7608.877238][ T254] ___sys_sendmsg+0xee/0x170 [ 7608.877238][ T254] __sys_sendmsg+0xcd/0x170 [ 7608.877238][ T254] do_syscall_64+0xc6/0x1e0 [ 7608.877238][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7608.877238][ T254] [ 7619.119876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7619.120363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.120363][ T254] dst_init+0x84/0x4a0 [ 7619.120363][ T254] dst_alloc+0x97/0x150 [ 7619.120363][ T254] ip6_dst_alloc+0x23/0x90 [ 7619.120363][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7619.120363][ T254] ip6_pol_route+0x56f/0x840 [ 7619.120363][ T254] fib6_rule_lookup+0x334/0x630 [ 7619.120363][ T254] ip6_route_output_flags+0x259/0x480 [ 7619.120363][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7619.120363][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7619.120363][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.120363][ T254] netlink_unicast+0x449/0x710 [ 7619.120363][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.120363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.120363][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.120363][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.120363][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.120363][ T254] [ 7619.122592][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.122592][ T254] netdev_get_by_index+0x5e/0x80 [ 7619.122592][ T254] fib6_nh_init+0x3d8/0x1580 [ 7619.122592][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7619.122592][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7619.122592][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7619.122592][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7619.122592][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7619.122592][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7619.122592][ T254] addrconf_dad_begin+0x310/0x670 [ 7619.122592][ T254] addrconf_dad_work+0x10b/0xab0 [ 7619.122592][ T254] process_one_work+0x84d/0x18a0 [ 7619.122592][ T254] worker_thread+0x587/0xd30 [ 7619.122592][ T254] kthread+0x28a/0x350 [ 7619.122592][ T254] ret_from_fork+0x31/0x70 [ 7619.122592][ T254] ret_from_fork_asm+0x1a/0x30 [ 7619.122592][ T254] [ 7619.124760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.124760][ T254] netdev_get_by_index+0x5e/0x80 [ 7619.124760][ T254] fib6_nh_init+0x3d8/0x1580 [ 7619.124760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7619.124760][ T254] ip6_route_add+0x1c/0x140 [ 7619.124760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7619.124760][ T254] inet6_addr_add+0x4f8/0xa40 [ 7619.124760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7619.124760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7619.124760][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.124760][ T254] netlink_unicast+0x449/0x710 [ 7619.124760][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.124760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.124760][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.124760][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.124760][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.124760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7619.124760][ T254] [ 7619.127025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.127025][ T254] netdev_get_by_index+0x5e/0x80 [ 7619.127025][ T254] fib6_nh_init+0x3d8/0x1580 [ 7619.127025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7619.127025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7619.127025][ T254] ipv6_add_addr+0x411/0x2000 [ 7619.127025][ T254] inet6_addr_add+0x30e/0xa40 [ 7619.127025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7619.127025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7619.127025][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.127025][ T254] netlink_unicast+0x449/0x710 [ 7619.127025][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.127025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.127025][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.127025][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.127025][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.127025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7619.127025][ T254] [ 7619.129290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.129290][ T254] netdev_get_by_index+0x5e/0x80 [ 7619.129290][ T254] fib6_nh_init+0x3d8/0x1580 [ 7619.129290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7619.129290][ T254] ip6_route_add+0x1c/0x140 [ 7619.129290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7619.129290][ T254] addrconf_add_dev+0xe2/0x170 [ 7619.129290][ T254] inet6_addr_add+0x12f/0xa40 [ 7619.129290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7619.129290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7619.129290][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.129290][ T254] netlink_unicast+0x449/0x710 [ 7619.129290][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.129290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.129290][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.129290][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.129290][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.129290][ T254] [ 7619.131502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.131502][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7619.131502][ T254] ipv6_find_idev+0x102/0x170 [ 7619.131502][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7619.131502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7619.131502][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.131502][ T254] netlink_unicast+0x449/0x710 [ 7619.131502][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.131502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.131502][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.131502][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.131502][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.131502][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7619.131502][ T254] [ 7619.133251][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7619.133251][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7619.133251][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7619.133251][ T254] ipv6_find_idev+0x102/0x170 [ 7619.133251][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7619.133251][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7619.133251][ T254] netlink_rcv_skb+0x130/0x360 [ 7619.133251][ T254] netlink_unicast+0x449/0x710 [ 7619.133251][ T254] netlink_sendmsg+0x723/0xbe0 [ 7619.133251][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7619.133251][ T254] ___sys_sendmsg+0xee/0x170 [ 7619.133251][ T254] __sys_sendmsg+0xcd/0x170 [ 7619.133251][ T254] do_syscall_64+0xc6/0x1e0 [ 7619.133251][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7619.133251][ T254] [ 7629.375784][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7629.376315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.376315][ T254] dst_init+0x84/0x4a0 [ 7629.376315][ T254] dst_alloc+0x97/0x150 [ 7629.376315][ T254] ip6_dst_alloc+0x23/0x90 [ 7629.376315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7629.376315][ T254] ip6_pol_route+0x56f/0x840 [ 7629.376315][ T254] fib6_rule_lookup+0x334/0x630 [ 7629.376315][ T254] ip6_route_output_flags+0x259/0x480 [ 7629.376315][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7629.376315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7629.376315][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.376315][ T254] netlink_unicast+0x449/0x710 [ 7629.376315][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.376315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.376315][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.376315][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.376315][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.376315][ T254] [ 7629.378524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.378524][ T254] netdev_get_by_index+0x5e/0x80 [ 7629.378524][ T254] fib6_nh_init+0x3d8/0x1580 [ 7629.378524][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7629.378524][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7629.378524][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7629.378524][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7629.378524][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7629.378524][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7629.378524][ T254] addrconf_dad_begin+0x310/0x670 [ 7629.378524][ T254] addrconf_dad_work+0x10b/0xab0 [ 7629.378524][ T254] process_one_work+0x84d/0x18a0 [ 7629.378524][ T254] worker_thread+0x587/0xd30 [ 7629.378524][ T254] kthread+0x28a/0x350 [ 7629.378524][ T254] ret_from_fork+0x31/0x70 [ 7629.378524][ T254] ret_from_fork_asm+0x1a/0x30 [ 7629.378524][ T254] [ 7629.380682][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.380682][ T254] netdev_get_by_index+0x5e/0x80 [ 7629.380682][ T254] fib6_nh_init+0x3d8/0x1580 [ 7629.380682][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7629.380682][ T254] ip6_route_add+0x1c/0x140 [ 7629.380682][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7629.380682][ T254] inet6_addr_add+0x4f8/0xa40 [ 7629.380682][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7629.380682][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7629.380682][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.380682][ T254] netlink_unicast+0x449/0x710 [ 7629.380682][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.380682][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.380682][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.380682][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.380682][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.380682][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7629.380682][ T254] [ 7629.382945][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.382945][ T254] netdev_get_by_index+0x5e/0x80 [ 7629.382945][ T254] fib6_nh_init+0x3d8/0x1580 [ 7629.382945][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7629.382945][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7629.382945][ T254] ipv6_add_addr+0x411/0x2000 [ 7629.382945][ T254] inet6_addr_add+0x30e/0xa40 [ 7629.382945][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7629.382945][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7629.382945][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.382945][ T254] netlink_unicast+0x449/0x710 [ 7629.382945][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.382945][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.382945][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.382945][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.382945][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.382945][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7629.382945][ T254] [ 7629.385199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.385199][ T254] netdev_get_by_index+0x5e/0x80 [ 7629.385199][ T254] fib6_nh_init+0x3d8/0x1580 [ 7629.385199][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7629.385199][ T254] ip6_route_add+0x1c/0x140 [ 7629.385199][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7629.385199][ T254] addrconf_add_dev+0xe2/0x170 [ 7629.385199][ T254] inet6_addr_add+0x12f/0xa40 [ 7629.385199][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7629.385199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7629.385199][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.385199][ T254] netlink_unicast+0x449/0x710 [ 7629.385199][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.385199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.385199][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.385199][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.385199][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.385199][ T254] [ 7629.387417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.387417][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7629.387417][ T254] ipv6_find_idev+0x102/0x170 [ 7629.387417][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7629.387417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7629.387417][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.387417][ T254] netlink_unicast+0x449/0x710 [ 7629.387417][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.387417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.387417][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.387417][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.387417][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.387417][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7629.387417][ T254] [ 7629.389154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7629.389154][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7629.389154][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7629.389154][ T254] ipv6_find_idev+0x102/0x170 [ 7629.389154][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7629.389154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7629.389154][ T254] netlink_rcv_skb+0x130/0x360 [ 7629.389154][ T254] netlink_unicast+0x449/0x710 [ 7629.389154][ T254] netlink_sendmsg+0x723/0xbe0 [ 7629.389154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7629.389154][ T254] ___sys_sendmsg+0xee/0x170 [ 7629.389154][ T254] __sys_sendmsg+0xcd/0x170 [ 7629.389154][ T254] do_syscall_64+0xc6/0x1e0 [ 7629.389154][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7629.389154][ T254] [ 7639.631863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7639.632347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.632347][ T254] dst_init+0x84/0x4a0 [ 7639.632347][ T254] dst_alloc+0x97/0x150 [ 7639.632347][ T254] ip6_dst_alloc+0x23/0x90 [ 7639.632347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7639.632347][ T254] ip6_pol_route+0x56f/0x840 [ 7639.632347][ T254] fib6_rule_lookup+0x334/0x630 [ 7639.632347][ T254] ip6_route_output_flags+0x259/0x480 [ 7639.632347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7639.632347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7639.632347][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.632347][ T254] netlink_unicast+0x449/0x710 [ 7639.632347][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.632347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.632347][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.632347][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.632347][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.632347][ T254] [ 7639.634573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.634573][ T254] netdev_get_by_index+0x5e/0x80 [ 7639.634573][ T254] fib6_nh_init+0x3d8/0x1580 [ 7639.634573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7639.634573][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7639.634573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7639.634573][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7639.634573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7639.634573][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7639.634573][ T254] addrconf_dad_begin+0x310/0x670 [ 7639.634573][ T254] addrconf_dad_work+0x10b/0xab0 [ 7639.634573][ T254] process_one_work+0x84d/0x18a0 [ 7639.634573][ T254] worker_thread+0x587/0xd30 [ 7639.634573][ T254] kthread+0x28a/0x350 [ 7639.634573][ T254] ret_from_fork+0x31/0x70 [ 7639.634573][ T254] ret_from_fork_asm+0x1a/0x30 [ 7639.634573][ T254] [ 7639.636734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.636734][ T254] netdev_get_by_index+0x5e/0x80 [ 7639.636734][ T254] fib6_nh_init+0x3d8/0x1580 [ 7639.636734][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7639.636734][ T254] ip6_route_add+0x1c/0x140 [ 7639.636734][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7639.636734][ T254] inet6_addr_add+0x4f8/0xa40 [ 7639.636734][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7639.636734][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7639.636734][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.636734][ T254] netlink_unicast+0x449/0x710 [ 7639.636734][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.636734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.636734][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.636734][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.636734][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.636734][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7639.636734][ T254] [ 7639.638989][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.638989][ T254] netdev_get_by_index+0x5e/0x80 [ 7639.638989][ T254] fib6_nh_init+0x3d8/0x1580 [ 7639.638989][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7639.638989][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7639.638989][ T254] ipv6_add_addr+0x411/0x2000 [ 7639.638989][ T254] inet6_addr_add+0x30e/0xa40 [ 7639.638989][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7639.638989][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7639.638989][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.638989][ T254] netlink_unicast+0x449/0x710 [ 7639.638989][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.638989][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.638989][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.638989][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.638989][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.638989][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7639.638989][ T254] [ 7639.641295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.641295][ T254] netdev_get_by_index+0x5e/0x80 [ 7639.641295][ T254] fib6_nh_init+0x3d8/0x1580 [ 7639.641295][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7639.641295][ T254] ip6_route_add+0x1c/0x140 [ 7639.641295][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7639.641295][ T254] addrconf_add_dev+0xe2/0x170 [ 7639.641295][ T254] inet6_addr_add+0x12f/0xa40 [ 7639.641295][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7639.641295][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7639.641295][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.641295][ T254] netlink_unicast+0x449/0x710 [ 7639.641295][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.641295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.641295][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.641295][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.641295][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.641295][ T254] [ 7639.643519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.643519][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7639.643519][ T254] ipv6_find_idev+0x102/0x170 [ 7639.643519][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7639.643519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7639.643519][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.643519][ T254] netlink_unicast+0x449/0x710 [ 7639.643519][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.643519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.643519][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.643519][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.643519][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.643519][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7639.643519][ T254] [ 7639.645268][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7639.645268][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7639.645268][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7639.645268][ T254] ipv6_find_idev+0x102/0x170 [ 7639.645268][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7639.645268][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7639.645268][ T254] netlink_rcv_skb+0x130/0x360 [ 7639.645268][ T254] netlink_unicast+0x449/0x710 [ 7639.645268][ T254] netlink_sendmsg+0x723/0xbe0 [ 7639.645268][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7639.645268][ T254] ___sys_sendmsg+0xee/0x170 [ 7639.645268][ T254] __sys_sendmsg+0xcd/0x170 [ 7639.645268][ T254] do_syscall_64+0xc6/0x1e0 [ 7639.645268][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7639.645268][ T254] [ 7649.839890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7649.840388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.840388][ T254] dst_init+0x84/0x4a0 [ 7649.840388][ T254] dst_alloc+0x97/0x150 [ 7649.840388][ T254] ip6_dst_alloc+0x23/0x90 [ 7649.840388][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7649.840388][ T254] ip6_pol_route+0x56f/0x840 [ 7649.840388][ T254] fib6_rule_lookup+0x334/0x630 [ 7649.840388][ T254] ip6_route_output_flags+0x259/0x480 [ 7649.840388][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7649.840388][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7649.840388][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.840388][ T254] netlink_unicast+0x449/0x710 [ 7649.840388][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.840388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.840388][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.840388][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.840388][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.840388][ T254] [ 7649.842613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.842613][ T254] netdev_get_by_index+0x5e/0x80 [ 7649.842613][ T254] fib6_nh_init+0x3d8/0x1580 [ 7649.842613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7649.842613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7649.842613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7649.842613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7649.842613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7649.842613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7649.842613][ T254] addrconf_dad_begin+0x310/0x670 [ 7649.842613][ T254] addrconf_dad_work+0x10b/0xab0 [ 7649.842613][ T254] process_one_work+0x84d/0x18a0 [ 7649.842613][ T254] worker_thread+0x587/0xd30 [ 7649.842613][ T254] kthread+0x28a/0x350 [ 7649.842613][ T254] ret_from_fork+0x31/0x70 [ 7649.842613][ T254] ret_from_fork_asm+0x1a/0x30 [ 7649.842613][ T254] [ 7649.844765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.844765][ T254] netdev_get_by_index+0x5e/0x80 [ 7649.844765][ T254] fib6_nh_init+0x3d8/0x1580 [ 7649.844765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7649.844765][ T254] ip6_route_add+0x1c/0x140 [ 7649.844765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7649.844765][ T254] inet6_addr_add+0x4f8/0xa40 [ 7649.844765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7649.844765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7649.844765][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.844765][ T254] netlink_unicast+0x449/0x710 [ 7649.844765][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.844765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.844765][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.844765][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.844765][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.844765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7649.844765][ T254] [ 7649.847025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.847025][ T254] netdev_get_by_index+0x5e/0x80 [ 7649.847025][ T254] fib6_nh_init+0x3d8/0x1580 [ 7649.847025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7649.847025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7649.847025][ T254] ipv6_add_addr+0x411/0x2000 [ 7649.847025][ T254] inet6_addr_add+0x30e/0xa40 [ 7649.847025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7649.847025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7649.847025][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.847025][ T254] netlink_unicast+0x449/0x710 [ 7649.847025][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.847025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.847025][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.847025][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.847025][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.847025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7649.847025][ T254] [ 7649.849272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.849272][ T254] netdev_get_by_index+0x5e/0x80 [ 7649.849272][ T254] fib6_nh_init+0x3d8/0x1580 [ 7649.849272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7649.849272][ T254] ip6_route_add+0x1c/0x140 [ 7649.849272][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7649.849272][ T254] addrconf_add_dev+0xe2/0x170 [ 7649.849272][ T254] inet6_addr_add+0x12f/0xa40 [ 7649.849272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7649.849272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7649.849272][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.849272][ T254] netlink_unicast+0x449/0x710 [ 7649.849272][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.849272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.849272][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.849272][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.849272][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.849272][ T254] [ 7649.851483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.851483][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7649.851483][ T254] ipv6_find_idev+0x102/0x170 [ 7649.851483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7649.851483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7649.851483][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.851483][ T254] netlink_unicast+0x449/0x710 [ 7649.851483][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.851483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.851483][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.851483][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.851483][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.851483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7649.851483][ T254] [ 7649.853229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7649.853229][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7649.853229][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7649.853229][ T254] ipv6_find_idev+0x102/0x170 [ 7649.853229][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7649.853229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7649.853229][ T254] netlink_rcv_skb+0x130/0x360 [ 7649.853229][ T254] netlink_unicast+0x449/0x710 [ 7649.853229][ T254] netlink_sendmsg+0x723/0xbe0 [ 7649.853229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7649.853229][ T254] ___sys_sendmsg+0xee/0x170 [ 7649.853229][ T254] __sys_sendmsg+0xcd/0x170 [ 7649.853229][ T254] do_syscall_64+0xc6/0x1e0 [ 7649.853229][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7649.853229][ T254] [ 7660.103854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7660.104344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.104344][ T254] dst_init+0x84/0x4a0 [ 7660.104344][ T254] dst_alloc+0x97/0x150 [ 7660.104344][ T254] ip6_dst_alloc+0x23/0x90 [ 7660.104344][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7660.104344][ T254] ip6_pol_route+0x56f/0x840 [ 7660.104344][ T254] fib6_rule_lookup+0x334/0x630 [ 7660.104344][ T254] ip6_route_output_flags+0x259/0x480 [ 7660.104344][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7660.104344][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7660.104344][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.104344][ T254] netlink_unicast+0x449/0x710 [ 7660.104344][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.104344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.104344][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.104344][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.104344][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.104344][ T254] [ 7660.106552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.106552][ T254] netdev_get_by_index+0x5e/0x80 [ 7660.106552][ T254] fib6_nh_init+0x3d8/0x1580 [ 7660.106552][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7660.106552][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7660.106552][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7660.106552][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7660.106552][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7660.106552][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7660.106552][ T254] addrconf_dad_begin+0x310/0x670 [ 7660.106552][ T254] addrconf_dad_work+0x10b/0xab0 [ 7660.106552][ T254] process_one_work+0x84d/0x18a0 [ 7660.106552][ T254] worker_thread+0x587/0xd30 [ 7660.106552][ T254] kthread+0x28a/0x350 [ 7660.106552][ T254] ret_from_fork+0x31/0x70 [ 7660.106552][ T254] ret_from_fork_asm+0x1a/0x30 [ 7660.106552][ T254] [ 7660.108715][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.108715][ T254] netdev_get_by_index+0x5e/0x80 [ 7660.108715][ T254] fib6_nh_init+0x3d8/0x1580 [ 7660.108715][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7660.108715][ T254] ip6_route_add+0x1c/0x140 [ 7660.108715][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7660.108715][ T254] inet6_addr_add+0x4f8/0xa40 [ 7660.108715][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7660.108715][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7660.108715][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.108715][ T254] netlink_unicast+0x449/0x710 [ 7660.108715][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.108715][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.108715][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.108715][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.108715][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.108715][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7660.108715][ T254] [ 7660.110971][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.110971][ T254] netdev_get_by_index+0x5e/0x80 [ 7660.110971][ T254] fib6_nh_init+0x3d8/0x1580 [ 7660.110971][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7660.110971][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7660.110971][ T254] ipv6_add_addr+0x411/0x2000 [ 7660.110971][ T254] inet6_addr_add+0x30e/0xa40 [ 7660.110971][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7660.110971][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7660.110971][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.110971][ T254] netlink_unicast+0x449/0x710 [ 7660.110971][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.110971][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.110971][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.110971][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.110971][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.110971][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7660.110971][ T254] [ 7660.113253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.113253][ T254] netdev_get_by_index+0x5e/0x80 [ 7660.113253][ T254] fib6_nh_init+0x3d8/0x1580 [ 7660.113253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7660.113253][ T254] ip6_route_add+0x1c/0x140 [ 7660.113253][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7660.113253][ T254] addrconf_add_dev+0xe2/0x170 [ 7660.113253][ T254] inet6_addr_add+0x12f/0xa40 [ 7660.113253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7660.113253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7660.113253][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.113253][ T254] netlink_unicast+0x449/0x710 [ 7660.113253][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.113253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.113253][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.113253][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.113253][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.113253][ T254] [ 7660.115463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.115463][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7660.115463][ T254] ipv6_find_idev+0x102/0x170 [ 7660.115463][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7660.115463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7660.115463][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.115463][ T254] netlink_unicast+0x449/0x710 [ 7660.115463][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.115463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.115463][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.115463][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.115463][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.115463][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7660.115463][ T254] [ 7660.117196][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7660.117196][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7660.117196][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7660.117196][ T254] ipv6_find_idev+0x102/0x170 [ 7660.117196][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7660.117196][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7660.117196][ T254] netlink_rcv_skb+0x130/0x360 [ 7660.117196][ T254] netlink_unicast+0x449/0x710 [ 7660.117196][ T254] netlink_sendmsg+0x723/0xbe0 [ 7660.117196][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7660.117196][ T254] ___sys_sendmsg+0xee/0x170 [ 7660.117196][ T254] __sys_sendmsg+0xcd/0x170 [ 7660.117196][ T254] do_syscall_64+0xc6/0x1e0 [ 7660.117196][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7660.117196][ T254] [ 7670.367847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7670.368338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.368338][ T254] dst_init+0x84/0x4a0 [ 7670.368338][ T254] dst_alloc+0x97/0x150 [ 7670.368338][ T254] ip6_dst_alloc+0x23/0x90 [ 7670.368338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7670.368338][ T254] ip6_pol_route+0x56f/0x840 [ 7670.368338][ T254] fib6_rule_lookup+0x334/0x630 [ 7670.368338][ T254] ip6_route_output_flags+0x259/0x480 [ 7670.368338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7670.368338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7670.368338][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.368338][ T254] netlink_unicast+0x449/0x710 [ 7670.368338][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.368338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.368338][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.368338][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.368338][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.368338][ T254] [ 7670.370567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.370567][ T254] netdev_get_by_index+0x5e/0x80 [ 7670.370567][ T254] fib6_nh_init+0x3d8/0x1580 [ 7670.370567][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7670.370567][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7670.370567][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7670.370567][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7670.370567][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7670.370567][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7670.370567][ T254] addrconf_dad_begin+0x310/0x670 [ 7670.370567][ T254] addrconf_dad_work+0x10b/0xab0 [ 7670.370567][ T254] process_one_work+0x84d/0x18a0 [ 7670.370567][ T254] worker_thread+0x587/0xd30 [ 7670.370567][ T254] kthread+0x28a/0x350 [ 7670.370567][ T254] ret_from_fork+0x31/0x70 [ 7670.370567][ T254] ret_from_fork_asm+0x1a/0x30 [ 7670.370567][ T254] [ 7670.372745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.372745][ T254] netdev_get_by_index+0x5e/0x80 [ 7670.372745][ T254] fib6_nh_init+0x3d8/0x1580 [ 7670.372745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7670.372745][ T254] ip6_route_add+0x1c/0x140 [ 7670.372745][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7670.372745][ T254] inet6_addr_add+0x4f8/0xa40 [ 7670.372745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7670.372745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7670.372745][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.372745][ T254] netlink_unicast+0x449/0x710 [ 7670.372745][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.372745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.372745][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.372745][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.372745][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.372745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7670.372745][ T254] [ 7670.375010][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.375010][ T254] netdev_get_by_index+0x5e/0x80 [ 7670.375010][ T254] fib6_nh_init+0x3d8/0x1580 [ 7670.375010][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7670.375010][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7670.375010][ T254] ipv6_add_addr+0x411/0x2000 [ 7670.375010][ T254] inet6_addr_add+0x30e/0xa40 [ 7670.375010][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7670.375010][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7670.375010][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.375010][ T254] netlink_unicast+0x449/0x710 [ 7670.375010][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.375010][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.375010][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.375010][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.375010][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.375010][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7670.375010][ T254] [ 7670.377271][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.377271][ T254] netdev_get_by_index+0x5e/0x80 [ 7670.377271][ T254] fib6_nh_init+0x3d8/0x1580 [ 7670.377271][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7670.377271][ T254] ip6_route_add+0x1c/0x140 [ 7670.377271][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7670.377271][ T254] addrconf_add_dev+0xe2/0x170 [ 7670.377271][ T254] inet6_addr_add+0x12f/0xa40 [ 7670.377271][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7670.377271][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7670.377271][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.377271][ T254] netlink_unicast+0x449/0x710 [ 7670.377271][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.377271][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.377271][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.377271][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.377271][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.377271][ T254] [ 7670.379492][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.379492][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7670.379492][ T254] ipv6_find_idev+0x102/0x170 [ 7670.379492][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7670.379492][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7670.379492][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.379492][ T254] netlink_unicast+0x449/0x710 [ 7670.379492][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.379492][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.379492][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.379492][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.379492][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.379492][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7670.379492][ T254] [ 7670.381237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7670.381237][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7670.381237][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7670.381237][ T254] ipv6_find_idev+0x102/0x170 [ 7670.381237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7670.381237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7670.381237][ T254] netlink_rcv_skb+0x130/0x360 [ 7670.381237][ T254] netlink_unicast+0x449/0x710 [ 7670.381237][ T254] netlink_sendmsg+0x723/0xbe0 [ 7670.381237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7670.381237][ T254] ___sys_sendmsg+0xee/0x170 [ 7670.381237][ T254] __sys_sendmsg+0xcd/0x170 [ 7670.381237][ T254] do_syscall_64+0xc6/0x1e0 [ 7670.381237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7670.381237][ T254] [ 7680.543868][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7680.544367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.544367][ T254] dst_init+0x84/0x4a0 [ 7680.544367][ T254] dst_alloc+0x97/0x150 [ 7680.544367][ T254] ip6_dst_alloc+0x23/0x90 [ 7680.544367][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7680.544367][ T254] ip6_pol_route+0x56f/0x840 [ 7680.544367][ T254] fib6_rule_lookup+0x334/0x630 [ 7680.544367][ T254] ip6_route_output_flags+0x259/0x480 [ 7680.544367][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7680.544367][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7680.544367][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.544367][ T254] netlink_unicast+0x449/0x710 [ 7680.544367][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.544367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.544367][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.544367][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.544367][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.544367][ T254] [ 7680.546584][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.546584][ T254] netdev_get_by_index+0x5e/0x80 [ 7680.546584][ T254] fib6_nh_init+0x3d8/0x1580 [ 7680.546584][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7680.546584][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7680.546584][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7680.546584][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7680.546584][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7680.546584][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7680.546584][ T254] addrconf_dad_begin+0x310/0x670 [ 7680.546584][ T254] addrconf_dad_work+0x10b/0xab0 [ 7680.546584][ T254] process_one_work+0x84d/0x18a0 [ 7680.546584][ T254] worker_thread+0x587/0xd30 [ 7680.546584][ T254] kthread+0x28a/0x350 [ 7680.546584][ T254] ret_from_fork+0x31/0x70 [ 7680.546584][ T254] ret_from_fork_asm+0x1a/0x30 [ 7680.546584][ T254] [ 7680.548746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.548746][ T254] netdev_get_by_index+0x5e/0x80 [ 7680.548746][ T254] fib6_nh_init+0x3d8/0x1580 [ 7680.548746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7680.548746][ T254] ip6_route_add+0x1c/0x140 [ 7680.548746][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7680.548746][ T254] inet6_addr_add+0x4f8/0xa40 [ 7680.548746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7680.548746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7680.548746][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.548746][ T254] netlink_unicast+0x449/0x710 [ 7680.548746][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.548746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.548746][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.548746][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.548746][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.548746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7680.548746][ T254] [ 7680.551017][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.551017][ T254] netdev_get_by_index+0x5e/0x80 [ 7680.551017][ T254] fib6_nh_init+0x3d8/0x1580 [ 7680.551017][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7680.551017][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7680.551017][ T254] ipv6_add_addr+0x411/0x2000 [ 7680.551017][ T254] inet6_addr_add+0x30e/0xa40 [ 7680.551017][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7680.551017][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7680.551017][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.551017][ T254] netlink_unicast+0x449/0x710 [ 7680.551017][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.551017][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.551017][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.551017][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.551017][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.551017][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7680.551017][ T254] [ 7680.553277][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.553277][ T254] netdev_get_by_index+0x5e/0x80 [ 7680.553277][ T254] fib6_nh_init+0x3d8/0x1580 [ 7680.553277][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7680.553277][ T254] ip6_route_add+0x1c/0x140 [ 7680.553277][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7680.553277][ T254] addrconf_add_dev+0xe2/0x170 [ 7680.553277][ T254] inet6_addr_add+0x12f/0xa40 [ 7680.553277][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7680.553277][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7680.553277][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.553277][ T254] netlink_unicast+0x449/0x710 [ 7680.553277][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.553277][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.553277][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.553277][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.553277][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.553277][ T254] [ 7680.555491][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.555491][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7680.555491][ T254] ipv6_find_idev+0x102/0x170 [ 7680.555491][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7680.555491][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7680.555491][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.555491][ T254] netlink_unicast+0x449/0x710 [ 7680.555491][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.555491][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.555491][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.555491][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.555491][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.555491][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7680.555491][ T254] [ 7680.557219][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7680.557219][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7680.557219][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7680.557219][ T254] ipv6_find_idev+0x102/0x170 [ 7680.557219][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7680.557219][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7680.557219][ T254] netlink_rcv_skb+0x130/0x360 [ 7680.557219][ T254] netlink_unicast+0x449/0x710 [ 7680.557219][ T254] netlink_sendmsg+0x723/0xbe0 [ 7680.557219][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7680.557219][ T254] ___sys_sendmsg+0xee/0x170 [ 7680.557219][ T254] __sys_sendmsg+0xcd/0x170 [ 7680.557219][ T254] do_syscall_64+0xc6/0x1e0 [ 7680.557219][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7680.557219][ T254] [ 7690.839957][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7690.840442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.840442][ T254] dst_init+0x84/0x4a0 [ 7690.840442][ T254] dst_alloc+0x97/0x150 [ 7690.840442][ T254] ip6_dst_alloc+0x23/0x90 [ 7690.840442][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7690.840442][ T254] ip6_pol_route+0x56f/0x840 [ 7690.840442][ T254] fib6_rule_lookup+0x334/0x630 [ 7690.840442][ T254] ip6_route_output_flags+0x259/0x480 [ 7690.840442][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7690.840442][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7690.840442][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.840442][ T254] netlink_unicast+0x449/0x710 [ 7690.840442][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.840442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.840442][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.840442][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.840442][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.840442][ T254] [ 7690.842683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.842683][ T254] netdev_get_by_index+0x5e/0x80 [ 7690.842683][ T254] fib6_nh_init+0x3d8/0x1580 [ 7690.842683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7690.842683][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7690.842683][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7690.842683][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7690.842683][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7690.842683][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7690.842683][ T254] addrconf_dad_begin+0x310/0x670 [ 7690.842683][ T254] addrconf_dad_work+0x10b/0xab0 [ 7690.842683][ T254] process_one_work+0x84d/0x18a0 [ 7690.842683][ T254] worker_thread+0x587/0xd30 [ 7690.842683][ T254] kthread+0x28a/0x350 [ 7690.842683][ T254] ret_from_fork+0x31/0x70 [ 7690.842683][ T254] ret_from_fork_asm+0x1a/0x30 [ 7690.842683][ T254] [ 7690.844840][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.844840][ T254] netdev_get_by_index+0x5e/0x80 [ 7690.844840][ T254] fib6_nh_init+0x3d8/0x1580 [ 7690.844840][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7690.844840][ T254] ip6_route_add+0x1c/0x140 [ 7690.844840][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7690.844840][ T254] inet6_addr_add+0x4f8/0xa40 [ 7690.844840][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7690.844840][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7690.844840][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.844840][ T254] netlink_unicast+0x449/0x710 [ 7690.844840][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.844840][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.844840][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.844840][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.844840][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.844840][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7690.844840][ T254] [ 7690.847095][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.847095][ T254] netdev_get_by_index+0x5e/0x80 [ 7690.847095][ T254] fib6_nh_init+0x3d8/0x1580 [ 7690.847095][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7690.847095][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7690.847095][ T254] ipv6_add_addr+0x411/0x2000 [ 7690.847095][ T254] inet6_addr_add+0x30e/0xa40 [ 7690.847095][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7690.847095][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7690.847095][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.847095][ T254] netlink_unicast+0x449/0x710 [ 7690.847095][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.847095][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.847095][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.847095][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.847095][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.847095][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7690.847095][ T254] [ 7690.849355][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.849355][ T254] netdev_get_by_index+0x5e/0x80 [ 7690.849355][ T254] fib6_nh_init+0x3d8/0x1580 [ 7690.849355][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7690.849355][ T254] ip6_route_add+0x1c/0x140 [ 7690.849355][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7690.849355][ T254] addrconf_add_dev+0xe2/0x170 [ 7690.849355][ T254] inet6_addr_add+0x12f/0xa40 [ 7690.849355][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7690.849355][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7690.849355][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.849355][ T254] netlink_unicast+0x449/0x710 [ 7690.849355][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.849355][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.849355][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.849355][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.849355][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.849355][ T254] [ 7690.851583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.851583][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7690.851583][ T254] ipv6_find_idev+0x102/0x170 [ 7690.851583][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7690.851583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7690.851583][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.851583][ T254] netlink_unicast+0x449/0x710 [ 7690.851583][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.851583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.851583][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.851583][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.851583][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.851583][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7690.851583][ T254] [ 7690.853336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7690.853336][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7690.853336][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7690.853336][ T254] ipv6_find_idev+0x102/0x170 [ 7690.853336][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7690.853336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7690.853336][ T254] netlink_rcv_skb+0x130/0x360 [ 7690.853336][ T254] netlink_unicast+0x449/0x710 [ 7690.853336][ T254] netlink_sendmsg+0x723/0xbe0 [ 7690.853336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7690.853336][ T254] ___sys_sendmsg+0xee/0x170 [ 7690.853336][ T254] __sys_sendmsg+0xcd/0x170 [ 7690.853336][ T254] do_syscall_64+0xc6/0x1e0 [ 7690.853336][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7690.853336][ T254] [ 7701.095867][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7701.096359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.096359][ T254] dst_init+0x84/0x4a0 [ 7701.096359][ T254] dst_alloc+0x97/0x150 [ 7701.096359][ T254] ip6_dst_alloc+0x23/0x90 [ 7701.096359][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7701.096359][ T254] ip6_pol_route+0x56f/0x840 [ 7701.096359][ T254] fib6_rule_lookup+0x334/0x630 [ 7701.096359][ T254] ip6_route_output_flags+0x259/0x480 [ 7701.096359][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7701.096359][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7701.096359][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.096359][ T254] netlink_unicast+0x449/0x710 [ 7701.096359][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.096359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.096359][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.096359][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.096359][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.096359][ T254] [ 7701.098581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.098581][ T254] netdev_get_by_index+0x5e/0x80 [ 7701.098581][ T254] fib6_nh_init+0x3d8/0x1580 [ 7701.098581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7701.098581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7701.098581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7701.098581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7701.098581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7701.098581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7701.098581][ T254] addrconf_dad_begin+0x310/0x670 [ 7701.098581][ T254] addrconf_dad_work+0x10b/0xab0 [ 7701.098581][ T254] process_one_work+0x84d/0x18a0 [ 7701.098581][ T254] worker_thread+0x587/0xd30 [ 7701.098581][ T254] kthread+0x28a/0x350 [ 7701.098581][ T254] ret_from_fork+0x31/0x70 [ 7701.098581][ T254] ret_from_fork_asm+0x1a/0x30 [ 7701.098581][ T254] [ 7701.100758][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.100758][ T254] netdev_get_by_index+0x5e/0x80 [ 7701.100758][ T254] fib6_nh_init+0x3d8/0x1580 [ 7701.100758][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7701.100758][ T254] ip6_route_add+0x1c/0x140 [ 7701.100758][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7701.100758][ T254] inet6_addr_add+0x4f8/0xa40 [ 7701.100758][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7701.100758][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7701.100758][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.100758][ T254] netlink_unicast+0x449/0x710 [ 7701.100758][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.100758][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.100758][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.100758][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.100758][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.100758][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7701.100758][ T254] [ 7701.103025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.103025][ T254] netdev_get_by_index+0x5e/0x80 [ 7701.103025][ T254] fib6_nh_init+0x3d8/0x1580 [ 7701.103025][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7701.103025][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7701.103025][ T254] ipv6_add_addr+0x411/0x2000 [ 7701.103025][ T254] inet6_addr_add+0x30e/0xa40 [ 7701.103025][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7701.103025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7701.103025][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.103025][ T254] netlink_unicast+0x449/0x710 [ 7701.103025][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.103025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.103025][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.103025][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.103025][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.103025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7701.103025][ T254] [ 7701.105282][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.105282][ T254] netdev_get_by_index+0x5e/0x80 [ 7701.105282][ T254] fib6_nh_init+0x3d8/0x1580 [ 7701.105282][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7701.105282][ T254] ip6_route_add+0x1c/0x140 [ 7701.105282][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7701.105282][ T254] addrconf_add_dev+0xe2/0x170 [ 7701.105282][ T254] inet6_addr_add+0x12f/0xa40 [ 7701.105282][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7701.105282][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7701.105282][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.105282][ T254] netlink_unicast+0x449/0x710 [ 7701.105282][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.105282][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.105282][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.105282][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.105282][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.105282][ T254] [ 7701.107510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.107510][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7701.107510][ T254] ipv6_find_idev+0x102/0x170 [ 7701.107510][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7701.107510][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7701.107510][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.107510][ T254] netlink_unicast+0x449/0x710 [ 7701.107510][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.107510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.107510][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.107510][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.107510][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.107510][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7701.107510][ T254] [ 7701.109243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7701.109243][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7701.109243][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7701.109243][ T254] ipv6_find_idev+0x102/0x170 [ 7701.109243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7701.109243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7701.109243][ T254] netlink_rcv_skb+0x130/0x360 [ 7701.109243][ T254] netlink_unicast+0x449/0x710 [ 7701.109243][ T254] netlink_sendmsg+0x723/0xbe0 [ 7701.109243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7701.109243][ T254] ___sys_sendmsg+0xee/0x170 [ 7701.109243][ T254] __sys_sendmsg+0xcd/0x170 [ 7701.109243][ T254] do_syscall_64+0xc6/0x1e0 [ 7701.109243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7701.109243][ T254] [ 7711.351849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7711.352339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.352339][ T254] dst_init+0x84/0x4a0 [ 7711.352339][ T254] dst_alloc+0x97/0x150 [ 7711.352339][ T254] ip6_dst_alloc+0x23/0x90 [ 7711.352339][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7711.352339][ T254] ip6_pol_route+0x56f/0x840 [ 7711.352339][ T254] fib6_rule_lookup+0x334/0x630 [ 7711.352339][ T254] ip6_route_output_flags+0x259/0x480 [ 7711.352339][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7711.352339][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7711.352339][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.352339][ T254] netlink_unicast+0x449/0x710 [ 7711.352339][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.352339][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.352339][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.352339][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.352339][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.352339][ T254] [ 7711.354552][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.354552][ T254] netdev_get_by_index+0x5e/0x80 [ 7711.354552][ T254] fib6_nh_init+0x3d8/0x1580 [ 7711.354552][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7711.354552][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7711.354552][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7711.354552][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7711.354552][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7711.354552][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7711.354552][ T254] addrconf_dad_begin+0x310/0x670 [ 7711.354552][ T254] addrconf_dad_work+0x10b/0xab0 [ 7711.354552][ T254] process_one_work+0x84d/0x18a0 [ 7711.354552][ T254] worker_thread+0x587/0xd30 [ 7711.354552][ T254] kthread+0x28a/0x350 [ 7711.354552][ T254] ret_from_fork+0x31/0x70 [ 7711.354552][ T254] ret_from_fork_asm+0x1a/0x30 [ 7711.354552][ T254] [ 7711.356712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.356712][ T254] netdev_get_by_index+0x5e/0x80 [ 7711.356712][ T254] fib6_nh_init+0x3d8/0x1580 [ 7711.356712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7711.356712][ T254] ip6_route_add+0x1c/0x140 [ 7711.356712][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7711.356712][ T254] inet6_addr_add+0x4f8/0xa40 [ 7711.356712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7711.356712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7711.356712][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.356712][ T254] netlink_unicast+0x449/0x710 [ 7711.356712][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.356712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.356712][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.356712][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.356712][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.356712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7711.356712][ T254] [ 7711.358964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.358964][ T254] netdev_get_by_index+0x5e/0x80 [ 7711.358964][ T254] fib6_nh_init+0x3d8/0x1580 [ 7711.358964][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7711.358964][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7711.358964][ T254] ipv6_add_addr+0x411/0x2000 [ 7711.358964][ T254] inet6_addr_add+0x30e/0xa40 [ 7711.358964][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7711.358964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7711.358964][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.358964][ T254] netlink_unicast+0x449/0x710 [ 7711.358964][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.358964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.358964][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.358964][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.358964][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.358964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7711.358964][ T254] [ 7711.361224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.361224][ T254] netdev_get_by_index+0x5e/0x80 [ 7711.361224][ T254] fib6_nh_init+0x3d8/0x1580 [ 7711.361224][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7711.361224][ T254] ip6_route_add+0x1c/0x140 [ 7711.361224][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7711.361224][ T254] addrconf_add_dev+0xe2/0x170 [ 7711.361224][ T254] inet6_addr_add+0x12f/0xa40 [ 7711.361224][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7711.361224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7711.361224][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.361224][ T254] netlink_unicast+0x449/0x710 [ 7711.361224][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.361224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.361224][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.361224][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.361224][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.361224][ T254] [ 7711.363451][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.363451][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7711.363451][ T254] ipv6_find_idev+0x102/0x170 [ 7711.363451][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7711.363451][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7711.363451][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.363451][ T254] netlink_unicast+0x449/0x710 [ 7711.363451][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.363451][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.363451][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.363451][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.363451][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.363451][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7711.363451][ T254] [ 7711.365190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7711.365190][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7711.365190][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7711.365190][ T254] ipv6_find_idev+0x102/0x170 [ 7711.365190][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7711.365190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7711.365190][ T254] netlink_rcv_skb+0x130/0x360 [ 7711.365190][ T254] netlink_unicast+0x449/0x710 [ 7711.365190][ T254] netlink_sendmsg+0x723/0xbe0 [ 7711.365190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7711.365190][ T254] ___sys_sendmsg+0xee/0x170 [ 7711.365190][ T254] __sys_sendmsg+0xcd/0x170 [ 7711.365190][ T254] do_syscall_64+0xc6/0x1e0 [ 7711.365190][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7711.365190][ T254] [ 7721.495768][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7721.496243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.496243][ T254] dst_init+0x84/0x4a0 [ 7721.496243][ T254] dst_alloc+0x97/0x150 [ 7721.496243][ T254] ip6_dst_alloc+0x23/0x90 [ 7721.496243][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7721.496243][ T254] ip6_pol_route+0x56f/0x840 [ 7721.496243][ T254] fib6_rule_lookup+0x334/0x630 [ 7721.496243][ T254] ip6_route_output_flags+0x259/0x480 [ 7721.496243][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7721.496243][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7721.496243][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.496243][ T254] netlink_unicast+0x449/0x710 [ 7721.496243][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.496243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.496243][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.496243][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.496243][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.496243][ T254] [ 7721.498457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.498457][ T254] netdev_get_by_index+0x5e/0x80 [ 7721.498457][ T254] fib6_nh_init+0x3d8/0x1580 [ 7721.498457][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7721.498457][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7721.498457][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7721.498457][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7721.498457][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7721.498457][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7721.498457][ T254] addrconf_dad_begin+0x310/0x670 [ 7721.498457][ T254] addrconf_dad_work+0x10b/0xab0 [ 7721.498457][ T254] process_one_work+0x84d/0x18a0 [ 7721.498457][ T254] worker_thread+0x587/0xd30 [ 7721.498457][ T254] kthread+0x28a/0x350 [ 7721.498457][ T254] ret_from_fork+0x31/0x70 [ 7721.498457][ T254] ret_from_fork_asm+0x1a/0x30 [ 7721.498457][ T254] [ 7721.500613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.500613][ T254] netdev_get_by_index+0x5e/0x80 [ 7721.500613][ T254] fib6_nh_init+0x3d8/0x1580 [ 7721.500613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7721.500613][ T254] ip6_route_add+0x1c/0x140 [ 7721.500613][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7721.500613][ T254] inet6_addr_add+0x4f8/0xa40 [ 7721.500613][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7721.500613][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7721.500613][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.500613][ T254] netlink_unicast+0x449/0x710 [ 7721.500613][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.500613][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.500613][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.500613][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.500613][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.500613][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7721.500613][ T254] [ 7721.502879][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.502879][ T254] netdev_get_by_index+0x5e/0x80 [ 7721.502879][ T254] fib6_nh_init+0x3d8/0x1580 [ 7721.502879][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7721.502879][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7721.502879][ T254] ipv6_add_addr+0x411/0x2000 [ 7721.502879][ T254] inet6_addr_add+0x30e/0xa40 [ 7721.502879][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7721.502879][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7721.502879][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.502879][ T254] netlink_unicast+0x449/0x710 [ 7721.502879][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.502879][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.502879][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.502879][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.502879][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.502879][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7721.502879][ T254] [ 7721.505123][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.505123][ T254] netdev_get_by_index+0x5e/0x80 [ 7721.505123][ T254] fib6_nh_init+0x3d8/0x1580 [ 7721.505123][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7721.505123][ T254] ip6_route_add+0x1c/0x140 [ 7721.505123][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7721.505123][ T254] addrconf_add_dev+0xe2/0x170 [ 7721.505123][ T254] inet6_addr_add+0x12f/0xa40 [ 7721.505123][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7721.505123][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7721.505123][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.505123][ T254] netlink_unicast+0x449/0x710 [ 7721.505123][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.505123][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.505123][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.505123][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.505123][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.505123][ T254] [ 7721.507333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.507333][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7721.507333][ T254] ipv6_find_idev+0x102/0x170 [ 7721.507333][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7721.507333][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7721.507333][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.507333][ T254] netlink_unicast+0x449/0x710 [ 7721.507333][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.507333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.507333][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.507333][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.507333][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.507333][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7721.507333][ T254] [ 7721.509056][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7721.509056][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7721.509056][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7721.509056][ T254] ipv6_find_idev+0x102/0x170 [ 7721.509056][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7721.509056][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7721.509056][ T254] netlink_rcv_skb+0x130/0x360 [ 7721.509056][ T254] netlink_unicast+0x449/0x710 [ 7721.509056][ T254] netlink_sendmsg+0x723/0xbe0 [ 7721.509056][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7721.509056][ T254] ___sys_sendmsg+0xee/0x170 [ 7721.509056][ T254] __sys_sendmsg+0xcd/0x170 [ 7721.509056][ T254] do_syscall_64+0xc6/0x1e0 [ 7721.509056][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7721.509056][ T254] [ 7731.751768][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7731.752243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.752243][ T254] dst_init+0x84/0x4a0 [ 7731.752243][ T254] dst_alloc+0x97/0x150 [ 7731.752243][ T254] ip6_dst_alloc+0x23/0x90 [ 7731.752243][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7731.752243][ T254] ip6_pol_route+0x56f/0x840 [ 7731.752243][ T254] fib6_rule_lookup+0x334/0x630 [ 7731.752243][ T254] ip6_route_output_flags+0x259/0x480 [ 7731.752243][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7731.752243][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7731.752243][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.752243][ T254] netlink_unicast+0x449/0x710 [ 7731.752243][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.752243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.752243][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.752243][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.752243][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.752243][ T254] [ 7731.754448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.754448][ T254] netdev_get_by_index+0x5e/0x80 [ 7731.754448][ T254] fib6_nh_init+0x3d8/0x1580 [ 7731.754448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7731.754448][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7731.754448][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7731.754448][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7731.754448][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7731.754448][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7731.754448][ T254] addrconf_dad_begin+0x310/0x670 [ 7731.754448][ T254] addrconf_dad_work+0x10b/0xab0 [ 7731.754448][ T254] process_one_work+0x84d/0x18a0 [ 7731.754448][ T254] worker_thread+0x587/0xd30 [ 7731.754448][ T254] kthread+0x28a/0x350 [ 7731.754448][ T254] ret_from_fork+0x31/0x70 [ 7731.754448][ T254] ret_from_fork_asm+0x1a/0x30 [ 7731.754448][ T254] [ 7731.756596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.756596][ T254] netdev_get_by_index+0x5e/0x80 [ 7731.756596][ T254] fib6_nh_init+0x3d8/0x1580 [ 7731.756596][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7731.756596][ T254] ip6_route_add+0x1c/0x140 [ 7731.756596][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7731.756596][ T254] inet6_addr_add+0x4f8/0xa40 [ 7731.756596][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7731.756596][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7731.756596][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.756596][ T254] netlink_unicast+0x449/0x710 [ 7731.756596][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.756596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.756596][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.756596][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.756596][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.756596][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7731.756596][ T254] [ 7731.758829][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.758829][ T254] netdev_get_by_index+0x5e/0x80 [ 7731.758829][ T254] fib6_nh_init+0x3d8/0x1580 [ 7731.758829][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7731.758829][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7731.758829][ T254] ipv6_add_addr+0x411/0x2000 [ 7731.758829][ T254] inet6_addr_add+0x30e/0xa40 [ 7731.758829][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7731.758829][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7731.758829][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.758829][ T254] netlink_unicast+0x449/0x710 [ 7731.758829][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.758829][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.758829][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.758829][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.758829][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.758829][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7731.758829][ T254] [ 7731.761067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.761067][ T254] netdev_get_by_index+0x5e/0x80 [ 7731.761067][ T254] fib6_nh_init+0x3d8/0x1580 [ 7731.761067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7731.761067][ T254] ip6_route_add+0x1c/0x140 [ 7731.761067][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7731.761067][ T254] addrconf_add_dev+0xe2/0x170 [ 7731.761067][ T254] inet6_addr_add+0x12f/0xa40 [ 7731.761067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7731.761067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7731.761067][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.761067][ T254] netlink_unicast+0x449/0x710 [ 7731.761067][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.761067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.761067][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.761067][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.761067][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.761067][ T254] [ 7731.763299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.763299][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7731.763299][ T254] ipv6_find_idev+0x102/0x170 [ 7731.763299][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7731.763299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7731.763299][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.763299][ T254] netlink_unicast+0x449/0x710 [ 7731.763299][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.763299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.763299][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.763299][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.763299][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.763299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7731.763299][ T254] [ 7731.765022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7731.765022][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7731.765022][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7731.765022][ T254] ipv6_find_idev+0x102/0x170 [ 7731.765022][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7731.765022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7731.765022][ T254] netlink_rcv_skb+0x130/0x360 [ 7731.765022][ T254] netlink_unicast+0x449/0x710 [ 7731.765022][ T254] netlink_sendmsg+0x723/0xbe0 [ 7731.765022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7731.765022][ T254] ___sys_sendmsg+0xee/0x170 [ 7731.765022][ T254] __sys_sendmsg+0xcd/0x170 [ 7731.765022][ T254] do_syscall_64+0xc6/0x1e0 [ 7731.765022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7731.765022][ T254] [ 7742.007766][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7742.008260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.008260][ T254] dst_init+0x84/0x4a0 [ 7742.008260][ T254] dst_alloc+0x97/0x150 [ 7742.008260][ T254] ip6_dst_alloc+0x23/0x90 [ 7742.008260][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7742.008260][ T254] ip6_pol_route+0x56f/0x840 [ 7742.008260][ T254] fib6_rule_lookup+0x334/0x630 [ 7742.008260][ T254] ip6_route_output_flags+0x259/0x480 [ 7742.008260][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7742.008260][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7742.008260][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.008260][ T254] netlink_unicast+0x449/0x710 [ 7742.008260][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.008260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.008260][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.008260][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.008260][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.008260][ T254] [ 7742.010459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.010459][ T254] netdev_get_by_index+0x5e/0x80 [ 7742.010459][ T254] fib6_nh_init+0x3d8/0x1580 [ 7742.010459][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7742.010459][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7742.010459][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7742.010459][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7742.010459][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7742.010459][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7742.010459][ T254] addrconf_dad_begin+0x310/0x670 [ 7742.010459][ T254] addrconf_dad_work+0x10b/0xab0 [ 7742.010459][ T254] process_one_work+0x84d/0x18a0 [ 7742.010459][ T254] worker_thread+0x587/0xd30 [ 7742.010459][ T254] kthread+0x28a/0x350 [ 7742.010459][ T254] ret_from_fork+0x31/0x70 [ 7742.010459][ T254] ret_from_fork_asm+0x1a/0x30 [ 7742.010459][ T254] [ 7742.012630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.012630][ T254] netdev_get_by_index+0x5e/0x80 [ 7742.012630][ T254] fib6_nh_init+0x3d8/0x1580 [ 7742.012630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7742.012630][ T254] ip6_route_add+0x1c/0x140 [ 7742.012630][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7742.012630][ T254] inet6_addr_add+0x4f8/0xa40 [ 7742.012630][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7742.012630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7742.012630][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.012630][ T254] netlink_unicast+0x449/0x710 [ 7742.012630][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.012630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.012630][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.012630][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.012630][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.012630][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7742.012630][ T254] [ 7742.014872][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.014872][ T254] netdev_get_by_index+0x5e/0x80 [ 7742.014872][ T254] fib6_nh_init+0x3d8/0x1580 [ 7742.014872][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7742.014872][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7742.014872][ T254] ipv6_add_addr+0x411/0x2000 [ 7742.014872][ T254] inet6_addr_add+0x30e/0xa40 [ 7742.014872][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7742.014872][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7742.014872][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.014872][ T254] netlink_unicast+0x449/0x710 [ 7742.014872][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.014872][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.014872][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.014872][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.014872][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.014872][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7742.014872][ T254] [ 7742.017124][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.017124][ T254] netdev_get_by_index+0x5e/0x80 [ 7742.017124][ T254] fib6_nh_init+0x3d8/0x1580 [ 7742.017124][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7742.017124][ T254] ip6_route_add+0x1c/0x140 [ 7742.017124][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7742.017124][ T254] addrconf_add_dev+0xe2/0x170 [ 7742.017124][ T254] inet6_addr_add+0x12f/0xa40 [ 7742.017124][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7742.017124][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7742.017124][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.017124][ T254] netlink_unicast+0x449/0x710 [ 7742.017124][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.017124][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.017124][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.017124][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.017124][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.017124][ T254] [ 7742.019421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.019421][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7742.019421][ T254] ipv6_find_idev+0x102/0x170 [ 7742.019421][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7742.019421][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7742.019421][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.019421][ T254] netlink_unicast+0x449/0x710 [ 7742.019421][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.019421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.019421][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.019421][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.019421][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.019421][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7742.019421][ T254] [ 7742.021145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7742.021145][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7742.021145][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7742.021145][ T254] ipv6_find_idev+0x102/0x170 [ 7742.021145][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7742.021145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7742.021145][ T254] netlink_rcv_skb+0x130/0x360 [ 7742.021145][ T254] netlink_unicast+0x449/0x710 [ 7742.021145][ T254] netlink_sendmsg+0x723/0xbe0 [ 7742.021145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7742.021145][ T254] ___sys_sendmsg+0xee/0x170 [ 7742.021145][ T254] __sys_sendmsg+0xcd/0x170 [ 7742.021145][ T254] do_syscall_64+0xc6/0x1e0 [ 7742.021145][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7742.021145][ T254] [ 7752.263775][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7752.264266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.264266][ T254] dst_init+0x84/0x4a0 [ 7752.264266][ T254] dst_alloc+0x97/0x150 [ 7752.264266][ T254] ip6_dst_alloc+0x23/0x90 [ 7752.264266][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7752.264266][ T254] ip6_pol_route+0x56f/0x840 [ 7752.264266][ T254] fib6_rule_lookup+0x334/0x630 [ 7752.264266][ T254] ip6_route_output_flags+0x259/0x480 [ 7752.264266][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7752.264266][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7752.264266][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.264266][ T254] netlink_unicast+0x449/0x710 [ 7752.264266][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.264266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.264266][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.264266][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.264266][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.264266][ T254] [ 7752.266474][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.266474][ T254] netdev_get_by_index+0x5e/0x80 [ 7752.266474][ T254] fib6_nh_init+0x3d8/0x1580 [ 7752.266474][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7752.266474][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7752.266474][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7752.266474][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7752.266474][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7752.266474][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7752.266474][ T254] addrconf_dad_begin+0x310/0x670 [ 7752.266474][ T254] addrconf_dad_work+0x10b/0xab0 [ 7752.266474][ T254] process_one_work+0x84d/0x18a0 [ 7752.266474][ T254] worker_thread+0x587/0xd30 [ 7752.266474][ T254] kthread+0x28a/0x350 [ 7752.266474][ T254] ret_from_fork+0x31/0x70 [ 7752.266474][ T254] ret_from_fork_asm+0x1a/0x30 [ 7752.266474][ T254] [ 7752.268613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.268613][ T254] netdev_get_by_index+0x5e/0x80 [ 7752.268613][ T254] fib6_nh_init+0x3d8/0x1580 [ 7752.268613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7752.268613][ T254] ip6_route_add+0x1c/0x140 [ 7752.268613][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7752.268613][ T254] inet6_addr_add+0x4f8/0xa40 [ 7752.268613][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7752.268613][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7752.268613][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.268613][ T254] netlink_unicast+0x449/0x710 [ 7752.268613][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.268613][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.268613][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.268613][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.268613][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.268613][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7752.268613][ T254] [ 7752.270858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.270858][ T254] netdev_get_by_index+0x5e/0x80 [ 7752.270858][ T254] fib6_nh_init+0x3d8/0x1580 [ 7752.270858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7752.270858][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7752.270858][ T254] ipv6_add_addr+0x411/0x2000 [ 7752.270858][ T254] inet6_addr_add+0x30e/0xa40 [ 7752.270858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7752.270858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7752.270858][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.270858][ T254] netlink_unicast+0x449/0x710 [ 7752.270858][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.270858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.270858][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.270858][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.270858][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.270858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7752.270858][ T254] [ 7752.273115][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.273115][ T254] netdev_get_by_index+0x5e/0x80 [ 7752.273115][ T254] fib6_nh_init+0x3d8/0x1580 [ 7752.273115][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7752.273115][ T254] ip6_route_add+0x1c/0x140 [ 7752.273115][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7752.273115][ T254] addrconf_add_dev+0xe2/0x170 [ 7752.273115][ T254] inet6_addr_add+0x12f/0xa40 [ 7752.273115][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7752.273115][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7752.273115][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.273115][ T254] netlink_unicast+0x449/0x710 [ 7752.273115][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.273115][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.273115][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.273115][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.273115][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.273115][ T254] [ 7752.275321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.275321][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7752.275321][ T254] ipv6_find_idev+0x102/0x170 [ 7752.275321][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7752.275321][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7752.275321][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.275321][ T254] netlink_unicast+0x449/0x710 [ 7752.275321][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.275321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.275321][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.275321][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.275321][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.275321][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7752.275321][ T254] [ 7752.277048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7752.277048][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7752.277048][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7752.277048][ T254] ipv6_find_idev+0x102/0x170 [ 7752.277048][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7752.277048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7752.277048][ T254] netlink_rcv_skb+0x130/0x360 [ 7752.277048][ T254] netlink_unicast+0x449/0x710 [ 7752.277048][ T254] netlink_sendmsg+0x723/0xbe0 [ 7752.277048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7752.277048][ T254] ___sys_sendmsg+0xee/0x170 [ 7752.277048][ T254] __sys_sendmsg+0xcd/0x170 [ 7752.277048][ T254] do_syscall_64+0xc6/0x1e0 [ 7752.277048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7752.277048][ T254] [ 7762.319844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7762.320312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.320312][ T254] dst_init+0x84/0x4a0 [ 7762.320312][ T254] dst_alloc+0x97/0x150 [ 7762.320312][ T254] ip6_dst_alloc+0x23/0x90 [ 7762.320312][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7762.320312][ T254] ip6_pol_route+0x56f/0x840 [ 7762.320312][ T254] fib6_rule_lookup+0x334/0x630 [ 7762.320312][ T254] ip6_route_output_flags+0x259/0x480 [ 7762.320312][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7762.320312][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7762.320312][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.320312][ T254] netlink_unicast+0x449/0x710 [ 7762.320312][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.320312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.320312][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.320312][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.320312][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.320312][ T254] [ 7762.322512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.322512][ T254] netdev_get_by_index+0x5e/0x80 [ 7762.322512][ T254] fib6_nh_init+0x3d8/0x1580 [ 7762.322512][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7762.322512][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7762.322512][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7762.322512][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7762.322512][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7762.322512][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7762.322512][ T254] addrconf_dad_begin+0x310/0x670 [ 7762.322512][ T254] addrconf_dad_work+0x10b/0xab0 [ 7762.322512][ T254] process_one_work+0x84d/0x18a0 [ 7762.322512][ T254] worker_thread+0x587/0xd30 [ 7762.322512][ T254] kthread+0x28a/0x350 [ 7762.322512][ T254] ret_from_fork+0x31/0x70 [ 7762.322512][ T254] ret_from_fork_asm+0x1a/0x30 [ 7762.322512][ T254] [ 7762.324652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.324652][ T254] netdev_get_by_index+0x5e/0x80 [ 7762.324652][ T254] fib6_nh_init+0x3d8/0x1580 [ 7762.324652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7762.324652][ T254] ip6_route_add+0x1c/0x140 [ 7762.324652][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7762.324652][ T254] inet6_addr_add+0x4f8/0xa40 [ 7762.324652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7762.324652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7762.324652][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.324652][ T254] netlink_unicast+0x449/0x710 [ 7762.324652][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.324652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.324652][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.324652][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.324652][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.324652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7762.324652][ T254] [ 7762.326887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.326887][ T254] netdev_get_by_index+0x5e/0x80 [ 7762.326887][ T254] fib6_nh_init+0x3d8/0x1580 [ 7762.326887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7762.326887][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7762.326887][ T254] ipv6_add_addr+0x411/0x2000 [ 7762.326887][ T254] inet6_addr_add+0x30e/0xa40 [ 7762.326887][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7762.326887][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7762.326887][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.326887][ T254] netlink_unicast+0x449/0x710 [ 7762.326887][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.326887][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.326887][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.326887][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.326887][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.326887][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7762.326887][ T254] [ 7762.329126][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.329126][ T254] netdev_get_by_index+0x5e/0x80 [ 7762.329126][ T254] fib6_nh_init+0x3d8/0x1580 [ 7762.329126][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7762.329126][ T254] ip6_route_add+0x1c/0x140 [ 7762.329126][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7762.329126][ T254] addrconf_add_dev+0xe2/0x170 [ 7762.329126][ T254] inet6_addr_add+0x12f/0xa40 [ 7762.329126][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7762.329126][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7762.329126][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.329126][ T254] netlink_unicast+0x449/0x710 [ 7762.329126][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.329126][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.329126][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.329126][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.329126][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.329126][ T254] [ 7762.331318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.331318][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7762.331318][ T254] ipv6_find_idev+0x102/0x170 [ 7762.331318][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7762.331318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7762.331318][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.331318][ T254] netlink_unicast+0x449/0x710 [ 7762.331318][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.331318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.331318][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.331318][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.331318][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.331318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7762.331318][ T254] [ 7762.333045][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7762.333045][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7762.333045][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7762.333045][ T254] ipv6_find_idev+0x102/0x170 [ 7762.333045][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7762.333045][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7762.333045][ T254] netlink_rcv_skb+0x130/0x360 [ 7762.333045][ T254] netlink_unicast+0x449/0x710 [ 7762.333045][ T254] netlink_sendmsg+0x723/0xbe0 [ 7762.333045][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7762.333045][ T254] ___sys_sendmsg+0xee/0x170 [ 7762.333045][ T254] __sys_sendmsg+0xcd/0x170 [ 7762.333045][ T254] do_syscall_64+0xc6/0x1e0 [ 7762.333045][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7762.333045][ T254] [ 7772.375847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7772.376346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.376346][ T254] dst_init+0x84/0x4a0 [ 7772.376346][ T254] dst_alloc+0x97/0x150 [ 7772.376346][ T254] ip6_dst_alloc+0x23/0x90 [ 7772.376346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7772.376346][ T254] ip6_pol_route+0x56f/0x840 [ 7772.376346][ T254] fib6_rule_lookup+0x334/0x630 [ 7772.376346][ T254] ip6_route_output_flags+0x259/0x480 [ 7772.376346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7772.376346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7772.376346][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.376346][ T254] netlink_unicast+0x449/0x710 [ 7772.376346][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.376346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.376346][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.376346][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.376346][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.376346][ T254] [ 7772.378568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.378568][ T254] netdev_get_by_index+0x5e/0x80 [ 7772.378568][ T254] fib6_nh_init+0x3d8/0x1580 [ 7772.378568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7772.378568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7772.378568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7772.378568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7772.378568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7772.378568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7772.378568][ T254] addrconf_dad_begin+0x310/0x670 [ 7772.378568][ T254] addrconf_dad_work+0x10b/0xab0 [ 7772.378568][ T254] process_one_work+0x84d/0x18a0 [ 7772.378568][ T254] worker_thread+0x587/0xd30 [ 7772.378568][ T254] kthread+0x28a/0x350 [ 7772.378568][ T254] ret_from_fork+0x31/0x70 [ 7772.378568][ T254] ret_from_fork_asm+0x1a/0x30 [ 7772.378568][ T254] [ 7772.380743][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.380743][ T254] netdev_get_by_index+0x5e/0x80 [ 7772.380743][ T254] fib6_nh_init+0x3d8/0x1580 [ 7772.380743][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7772.380743][ T254] ip6_route_add+0x1c/0x140 [ 7772.380743][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7772.380743][ T254] inet6_addr_add+0x4f8/0xa40 [ 7772.380743][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7772.380743][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7772.380743][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.380743][ T254] netlink_unicast+0x449/0x710 [ 7772.380743][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.380743][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.380743][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.380743][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.380743][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.380743][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7772.380743][ T254] [ 7772.383015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.383015][ T254] netdev_get_by_index+0x5e/0x80 [ 7772.383015][ T254] fib6_nh_init+0x3d8/0x1580 [ 7772.383015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7772.383015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7772.383015][ T254] ipv6_add_addr+0x411/0x2000 [ 7772.383015][ T254] inet6_addr_add+0x30e/0xa40 [ 7772.383015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7772.383015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7772.383015][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.383015][ T254] netlink_unicast+0x449/0x710 [ 7772.383015][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.383015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.383015][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.383015][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.383015][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.383015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7772.383015][ T254] [ 7772.385274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.385274][ T254] netdev_get_by_index+0x5e/0x80 [ 7772.385274][ T254] fib6_nh_init+0x3d8/0x1580 [ 7772.385274][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7772.385274][ T254] ip6_route_add+0x1c/0x140 [ 7772.385274][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7772.385274][ T254] addrconf_add_dev+0xe2/0x170 [ 7772.385274][ T254] inet6_addr_add+0x12f/0xa40 [ 7772.385274][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7772.385274][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7772.385274][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.385274][ T254] netlink_unicast+0x449/0x710 [ 7772.385274][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.385274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.385274][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.385274][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.385274][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.385274][ T254] [ 7772.387569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.387569][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7772.387569][ T254] ipv6_find_idev+0x102/0x170 [ 7772.387569][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7772.387569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7772.387569][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.387569][ T254] netlink_unicast+0x449/0x710 [ 7772.387569][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.387569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.387569][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.387569][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.387569][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.387569][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7772.387569][ T254] [ 7772.389308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7772.389308][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7772.389308][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7772.389308][ T254] ipv6_find_idev+0x102/0x170 [ 7772.389308][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7772.389308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7772.389308][ T254] netlink_rcv_skb+0x130/0x360 [ 7772.389308][ T254] netlink_unicast+0x449/0x710 [ 7772.389308][ T254] netlink_sendmsg+0x723/0xbe0 [ 7772.389308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7772.389308][ T254] ___sys_sendmsg+0xee/0x170 [ 7772.389308][ T254] __sys_sendmsg+0xcd/0x170 [ 7772.389308][ T254] do_syscall_64+0xc6/0x1e0 [ 7772.389308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7772.389308][ T254] [ 7782.639847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7782.640340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.640340][ T254] dst_init+0x84/0x4a0 [ 7782.640340][ T254] dst_alloc+0x97/0x150 [ 7782.640340][ T254] ip6_dst_alloc+0x23/0x90 [ 7782.640340][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7782.640340][ T254] ip6_pol_route+0x56f/0x840 [ 7782.640340][ T254] fib6_rule_lookup+0x334/0x630 [ 7782.640340][ T254] ip6_route_output_flags+0x259/0x480 [ 7782.640340][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7782.640340][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7782.640340][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.640340][ T254] netlink_unicast+0x449/0x710 [ 7782.640340][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.640340][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.640340][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.640340][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.640340][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.640340][ T254] [ 7782.642557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.642557][ T254] netdev_get_by_index+0x5e/0x80 [ 7782.642557][ T254] fib6_nh_init+0x3d8/0x1580 [ 7782.642557][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7782.642557][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7782.642557][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7782.642557][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7782.642557][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7782.642557][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7782.642557][ T254] addrconf_dad_begin+0x310/0x670 [ 7782.642557][ T254] addrconf_dad_work+0x10b/0xab0 [ 7782.642557][ T254] process_one_work+0x84d/0x18a0 [ 7782.642557][ T254] worker_thread+0x587/0xd30 [ 7782.642557][ T254] kthread+0x28a/0x350 [ 7782.642557][ T254] ret_from_fork+0x31/0x70 [ 7782.642557][ T254] ret_from_fork_asm+0x1a/0x30 [ 7782.642557][ T254] [ 7782.644706][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.644706][ T254] netdev_get_by_index+0x5e/0x80 [ 7782.644706][ T254] fib6_nh_init+0x3d8/0x1580 [ 7782.644706][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7782.644706][ T254] ip6_route_add+0x1c/0x140 [ 7782.644706][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7782.644706][ T254] inet6_addr_add+0x4f8/0xa40 [ 7782.644706][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7782.644706][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7782.644706][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.644706][ T254] netlink_unicast+0x449/0x710 [ 7782.644706][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.644706][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.644706][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.644706][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.644706][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.644706][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7782.644706][ T254] [ 7782.646940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.646940][ T254] netdev_get_by_index+0x5e/0x80 [ 7782.646940][ T254] fib6_nh_init+0x3d8/0x1580 [ 7782.646940][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7782.646940][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7782.646940][ T254] ipv6_add_addr+0x411/0x2000 [ 7782.646940][ T254] inet6_addr_add+0x30e/0xa40 [ 7782.646940][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7782.646940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7782.646940][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.646940][ T254] netlink_unicast+0x449/0x710 [ 7782.646940][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.646940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.646940][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.646940][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.646940][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.646940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7782.646940][ T254] [ 7782.649168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.649168][ T254] netdev_get_by_index+0x5e/0x80 [ 7782.649168][ T254] fib6_nh_init+0x3d8/0x1580 [ 7782.649168][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7782.649168][ T254] ip6_route_add+0x1c/0x140 [ 7782.649168][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7782.649168][ T254] addrconf_add_dev+0xe2/0x170 [ 7782.649168][ T254] inet6_addr_add+0x12f/0xa40 [ 7782.649168][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7782.649168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7782.649168][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.649168][ T254] netlink_unicast+0x449/0x710 [ 7782.649168][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.649168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.649168][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.649168][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.649168][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.649168][ T254] [ 7782.651371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.651371][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7782.651371][ T254] ipv6_find_idev+0x102/0x170 [ 7782.651371][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7782.651371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7782.651371][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.651371][ T254] netlink_unicast+0x449/0x710 [ 7782.651371][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.651371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.651371][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.651371][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.651371][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.651371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7782.651371][ T254] [ 7782.653089][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7782.653089][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7782.653089][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7782.653089][ T254] ipv6_find_idev+0x102/0x170 [ 7782.653089][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7782.653089][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7782.653089][ T254] netlink_rcv_skb+0x130/0x360 [ 7782.653089][ T254] netlink_unicast+0x449/0x710 [ 7782.653089][ T254] netlink_sendmsg+0x723/0xbe0 [ 7782.653089][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7782.653089][ T254] ___sys_sendmsg+0xee/0x170 [ 7782.653089][ T254] __sys_sendmsg+0xcd/0x170 [ 7782.653089][ T254] do_syscall_64+0xc6/0x1e0 [ 7782.653089][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7782.653089][ T254] [ 7792.727845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7792.728338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.728338][ T254] dst_init+0x84/0x4a0 [ 7792.728338][ T254] dst_alloc+0x97/0x150 [ 7792.728338][ T254] ip6_dst_alloc+0x23/0x90 [ 7792.728338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7792.728338][ T254] ip6_pol_route+0x56f/0x840 [ 7792.728338][ T254] fib6_rule_lookup+0x334/0x630 [ 7792.728338][ T254] ip6_route_output_flags+0x259/0x480 [ 7792.728338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7792.728338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7792.728338][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.728338][ T254] netlink_unicast+0x449/0x710 [ 7792.728338][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.728338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.728338][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.728338][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.728338][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.728338][ T254] [ 7792.730556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.730556][ T254] netdev_get_by_index+0x5e/0x80 [ 7792.730556][ T254] fib6_nh_init+0x3d8/0x1580 [ 7792.730556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7792.730556][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7792.730556][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7792.730556][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7792.730556][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7792.730556][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7792.730556][ T254] addrconf_dad_begin+0x310/0x670 [ 7792.730556][ T254] addrconf_dad_work+0x10b/0xab0 [ 7792.730556][ T254] process_one_work+0x84d/0x18a0 [ 7792.730556][ T254] worker_thread+0x587/0xd30 [ 7792.730556][ T254] kthread+0x28a/0x350 [ 7792.730556][ T254] ret_from_fork+0x31/0x70 [ 7792.730556][ T254] ret_from_fork_asm+0x1a/0x30 [ 7792.730556][ T254] [ 7792.732768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.732768][ T254] netdev_get_by_index+0x5e/0x80 [ 7792.732768][ T254] fib6_nh_init+0x3d8/0x1580 [ 7792.732768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7792.732768][ T254] ip6_route_add+0x1c/0x140 [ 7792.732768][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7792.732768][ T254] inet6_addr_add+0x4f8/0xa40 [ 7792.732768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7792.732768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7792.732768][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.732768][ T254] netlink_unicast+0x449/0x710 [ 7792.732768][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.732768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.732768][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.732768][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.732768][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.732768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7792.732768][ T254] [ 7792.735029][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.735029][ T254] netdev_get_by_index+0x5e/0x80 [ 7792.735029][ T254] fib6_nh_init+0x3d8/0x1580 [ 7792.735029][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7792.735029][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7792.735029][ T254] ipv6_add_addr+0x411/0x2000 [ 7792.735029][ T254] inet6_addr_add+0x30e/0xa40 [ 7792.735029][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7792.735029][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7792.735029][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.735029][ T254] netlink_unicast+0x449/0x710 [ 7792.735029][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.735029][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.735029][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.735029][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.735029][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.735029][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7792.735029][ T254] [ 7792.737288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.737288][ T254] netdev_get_by_index+0x5e/0x80 [ 7792.737288][ T254] fib6_nh_init+0x3d8/0x1580 [ 7792.737288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7792.737288][ T254] ip6_route_add+0x1c/0x140 [ 7792.737288][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7792.737288][ T254] addrconf_add_dev+0xe2/0x170 [ 7792.737288][ T254] inet6_addr_add+0x12f/0xa40 [ 7792.737288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7792.737288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7792.737288][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.737288][ T254] netlink_unicast+0x449/0x710 [ 7792.737288][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.737288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.737288][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.737288][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.737288][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.737288][ T254] [ 7792.739517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.739517][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7792.739517][ T254] ipv6_find_idev+0x102/0x170 [ 7792.739517][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7792.739517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7792.739517][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.739517][ T254] netlink_unicast+0x449/0x710 [ 7792.739517][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.739517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.739517][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.739517][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.739517][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.739517][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7792.739517][ T254] [ 7792.741258][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7792.741258][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7792.741258][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7792.741258][ T254] ipv6_find_idev+0x102/0x170 [ 7792.741258][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7792.741258][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7792.741258][ T254] netlink_rcv_skb+0x130/0x360 [ 7792.741258][ T254] netlink_unicast+0x449/0x710 [ 7792.741258][ T254] netlink_sendmsg+0x723/0xbe0 [ 7792.741258][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7792.741258][ T254] ___sys_sendmsg+0xee/0x170 [ 7792.741258][ T254] __sys_sendmsg+0xcd/0x170 [ 7792.741258][ T254] do_syscall_64+0xc6/0x1e0 [ 7792.741258][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7792.741258][ T254] [ 7802.863849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7802.864344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.864344][ T254] dst_init+0x84/0x4a0 [ 7802.864344][ T254] dst_alloc+0x97/0x150 [ 7802.864344][ T254] ip6_dst_alloc+0x23/0x90 [ 7802.864344][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7802.864344][ T254] ip6_pol_route+0x56f/0x840 [ 7802.864344][ T254] fib6_rule_lookup+0x334/0x630 [ 7802.864344][ T254] ip6_route_output_flags+0x259/0x480 [ 7802.864344][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7802.864344][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7802.864344][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.864344][ T254] netlink_unicast+0x449/0x710 [ 7802.864344][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.864344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.864344][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.864344][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.864344][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.864344][ T254] [ 7802.866571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.866571][ T254] netdev_get_by_index+0x5e/0x80 [ 7802.866571][ T254] fib6_nh_init+0x3d8/0x1580 [ 7802.866571][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7802.866571][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7802.866571][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7802.866571][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7802.866571][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7802.866571][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7802.866571][ T254] addrconf_dad_begin+0x310/0x670 [ 7802.866571][ T254] addrconf_dad_work+0x10b/0xab0 [ 7802.866571][ T254] process_one_work+0x84d/0x18a0 [ 7802.866571][ T254] worker_thread+0x587/0xd30 [ 7802.866571][ T254] kthread+0x28a/0x350 [ 7802.866571][ T254] ret_from_fork+0x31/0x70 [ 7802.866571][ T254] ret_from_fork_asm+0x1a/0x30 [ 7802.866571][ T254] [ 7802.868741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.868741][ T254] netdev_get_by_index+0x5e/0x80 [ 7802.868741][ T254] fib6_nh_init+0x3d8/0x1580 [ 7802.868741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7802.868741][ T254] ip6_route_add+0x1c/0x140 [ 7802.868741][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7802.868741][ T254] inet6_addr_add+0x4f8/0xa40 [ 7802.868741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7802.868741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7802.868741][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.868741][ T254] netlink_unicast+0x449/0x710 [ 7802.868741][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.868741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.868741][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.868741][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.868741][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.868741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7802.868741][ T254] [ 7802.871004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.871004][ T254] netdev_get_by_index+0x5e/0x80 [ 7802.871004][ T254] fib6_nh_init+0x3d8/0x1580 [ 7802.871004][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7802.871004][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7802.871004][ T254] ipv6_add_addr+0x411/0x2000 [ 7802.871004][ T254] inet6_addr_add+0x30e/0xa40 [ 7802.871004][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7802.871004][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7802.871004][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.871004][ T254] netlink_unicast+0x449/0x710 [ 7802.871004][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.871004][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.871004][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.871004][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.871004][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.871004][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7802.871004][ T254] [ 7802.873294][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.873294][ T254] netdev_get_by_index+0x5e/0x80 [ 7802.873294][ T254] fib6_nh_init+0x3d8/0x1580 [ 7802.873294][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7802.873294][ T254] ip6_route_add+0x1c/0x140 [ 7802.873294][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7802.873294][ T254] addrconf_add_dev+0xe2/0x170 [ 7802.873294][ T254] inet6_addr_add+0x12f/0xa40 [ 7802.873294][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7802.873294][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7802.873294][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.873294][ T254] netlink_unicast+0x449/0x710 [ 7802.873294][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.873294][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.873294][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.873294][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.873294][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.873294][ T254] [ 7802.875517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.875517][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7802.875517][ T254] ipv6_find_idev+0x102/0x170 [ 7802.875517][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7802.875517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7802.875517][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.875517][ T254] netlink_unicast+0x449/0x710 [ 7802.875517][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.875517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.875517][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.875517][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.875517][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.875517][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7802.875517][ T254] [ 7802.877260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7802.877260][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7802.877260][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7802.877260][ T254] ipv6_find_idev+0x102/0x170 [ 7802.877260][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7802.877260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7802.877260][ T254] netlink_rcv_skb+0x130/0x360 [ 7802.877260][ T254] netlink_unicast+0x449/0x710 [ 7802.877260][ T254] netlink_sendmsg+0x723/0xbe0 [ 7802.877260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7802.877260][ T254] ___sys_sendmsg+0xee/0x170 [ 7802.877260][ T254] __sys_sendmsg+0xcd/0x170 [ 7802.877260][ T254] do_syscall_64+0xc6/0x1e0 [ 7802.877260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7802.877260][ T254] [ 7813.127865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7813.128374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.128374][ T254] dst_init+0x84/0x4a0 [ 7813.128374][ T254] dst_alloc+0x97/0x150 [ 7813.128374][ T254] ip6_dst_alloc+0x23/0x90 [ 7813.128374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7813.128374][ T254] ip6_pol_route+0x56f/0x840 [ 7813.128374][ T254] fib6_rule_lookup+0x334/0x630 [ 7813.128374][ T254] ip6_route_output_flags+0x259/0x480 [ 7813.128374][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7813.128374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7813.128374][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.128374][ T254] netlink_unicast+0x449/0x710 [ 7813.128374][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.128374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.128374][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.128374][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.128374][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.128374][ T254] [ 7813.130598][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.130598][ T254] netdev_get_by_index+0x5e/0x80 [ 7813.130598][ T254] fib6_nh_init+0x3d8/0x1580 [ 7813.130598][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7813.130598][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7813.130598][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7813.130598][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7813.130598][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7813.130598][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7813.130598][ T254] addrconf_dad_begin+0x310/0x670 [ 7813.130598][ T254] addrconf_dad_work+0x10b/0xab0 [ 7813.130598][ T254] process_one_work+0x84d/0x18a0 [ 7813.130598][ T254] worker_thread+0x587/0xd30 [ 7813.130598][ T254] kthread+0x28a/0x350 [ 7813.130598][ T254] ret_from_fork+0x31/0x70 [ 7813.130598][ T254] ret_from_fork_asm+0x1a/0x30 [ 7813.130598][ T254] [ 7813.132778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.132778][ T254] netdev_get_by_index+0x5e/0x80 [ 7813.132778][ T254] fib6_nh_init+0x3d8/0x1580 [ 7813.132778][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7813.132778][ T254] ip6_route_add+0x1c/0x140 [ 7813.132778][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7813.132778][ T254] inet6_addr_add+0x4f8/0xa40 [ 7813.132778][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7813.132778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7813.132778][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.132778][ T254] netlink_unicast+0x449/0x710 [ 7813.132778][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.132778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.132778][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.132778][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.132778][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.132778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7813.132778][ T254] [ 7813.135037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.135037][ T254] netdev_get_by_index+0x5e/0x80 [ 7813.135037][ T254] fib6_nh_init+0x3d8/0x1580 [ 7813.135037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7813.135037][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7813.135037][ T254] ipv6_add_addr+0x411/0x2000 [ 7813.135037][ T254] inet6_addr_add+0x30e/0xa40 [ 7813.135037][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7813.135037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7813.135037][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.135037][ T254] netlink_unicast+0x449/0x710 [ 7813.135037][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.135037][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.135037][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.135037][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.135037][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.135037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7813.135037][ T254] [ 7813.137307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.137307][ T254] netdev_get_by_index+0x5e/0x80 [ 7813.137307][ T254] fib6_nh_init+0x3d8/0x1580 [ 7813.137307][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7813.137307][ T254] ip6_route_add+0x1c/0x140 [ 7813.137307][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7813.137307][ T254] addrconf_add_dev+0xe2/0x170 [ 7813.137307][ T254] inet6_addr_add+0x12f/0xa40 [ 7813.137307][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7813.137307][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7813.137307][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.137307][ T254] netlink_unicast+0x449/0x710 [ 7813.137307][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.137307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.137307][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.137307][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.137307][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.137307][ T254] [ 7813.139534][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.139534][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7813.139534][ T254] ipv6_find_idev+0x102/0x170 [ 7813.139534][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7813.139534][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7813.139534][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.139534][ T254] netlink_unicast+0x449/0x710 [ 7813.139534][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.139534][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.139534][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.139534][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.139534][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.139534][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7813.139534][ T254] [ 7813.141285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7813.141285][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7813.141285][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7813.141285][ T254] ipv6_find_idev+0x102/0x170 [ 7813.141285][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7813.141285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7813.141285][ T254] netlink_rcv_skb+0x130/0x360 [ 7813.141285][ T254] netlink_unicast+0x449/0x710 [ 7813.141285][ T254] netlink_sendmsg+0x723/0xbe0 [ 7813.141285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7813.141285][ T254] ___sys_sendmsg+0xee/0x170 [ 7813.141285][ T254] __sys_sendmsg+0xcd/0x170 [ 7813.141285][ T254] do_syscall_64+0xc6/0x1e0 [ 7813.141285][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7813.141285][ T254] [ 7823.391847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7823.392342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.392342][ T254] dst_init+0x84/0x4a0 [ 7823.392342][ T254] dst_alloc+0x97/0x150 [ 7823.392342][ T254] ip6_dst_alloc+0x23/0x90 [ 7823.392342][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7823.392342][ T254] ip6_pol_route+0x56f/0x840 [ 7823.392342][ T254] fib6_rule_lookup+0x334/0x630 [ 7823.392342][ T254] ip6_route_output_flags+0x259/0x480 [ 7823.392342][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7823.392342][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7823.392342][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.392342][ T254] netlink_unicast+0x449/0x710 [ 7823.392342][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.392342][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.392342][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.392342][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.392342][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.392342][ T254] [ 7823.394569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.394569][ T254] netdev_get_by_index+0x5e/0x80 [ 7823.394569][ T254] fib6_nh_init+0x3d8/0x1580 [ 7823.394569][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7823.394569][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7823.394569][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7823.394569][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7823.394569][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7823.394569][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7823.394569][ T254] addrconf_dad_begin+0x310/0x670 [ 7823.394569][ T254] addrconf_dad_work+0x10b/0xab0 [ 7823.394569][ T254] process_one_work+0x84d/0x18a0 [ 7823.394569][ T254] worker_thread+0x587/0xd30 [ 7823.394569][ T254] kthread+0x28a/0x350 [ 7823.394569][ T254] ret_from_fork+0x31/0x70 [ 7823.394569][ T254] ret_from_fork_asm+0x1a/0x30 [ 7823.394569][ T254] [ 7823.396735][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.396735][ T254] netdev_get_by_index+0x5e/0x80 [ 7823.396735][ T254] fib6_nh_init+0x3d8/0x1580 [ 7823.396735][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7823.396735][ T254] ip6_route_add+0x1c/0x140 [ 7823.396735][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7823.396735][ T254] inet6_addr_add+0x4f8/0xa40 [ 7823.396735][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7823.396735][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7823.396735][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.396735][ T254] netlink_unicast+0x449/0x710 [ 7823.396735][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.396735][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.396735][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.396735][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.396735][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.396735][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7823.396735][ T254] [ 7823.399000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.399000][ T254] netdev_get_by_index+0x5e/0x80 [ 7823.399000][ T254] fib6_nh_init+0x3d8/0x1580 [ 7823.399000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7823.399000][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7823.399000][ T254] ipv6_add_addr+0x411/0x2000 [ 7823.399000][ T254] inet6_addr_add+0x30e/0xa40 [ 7823.399000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7823.399000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7823.399000][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.399000][ T254] netlink_unicast+0x449/0x710 [ 7823.399000][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.399000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.399000][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.399000][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.399000][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.399000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7823.399000][ T254] [ 7823.401284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.401284][ T254] netdev_get_by_index+0x5e/0x80 [ 7823.401284][ T254] fib6_nh_init+0x3d8/0x1580 [ 7823.401284][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7823.401284][ T254] ip6_route_add+0x1c/0x140 [ 7823.401284][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7823.401284][ T254] addrconf_add_dev+0xe2/0x170 [ 7823.401284][ T254] inet6_addr_add+0x12f/0xa40 [ 7823.401284][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7823.401284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7823.401284][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.401284][ T254] netlink_unicast+0x449/0x710 [ 7823.401284][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.401284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.401284][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.401284][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.401284][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.401284][ T254] [ 7823.403506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.403506][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7823.403506][ T254] ipv6_find_idev+0x102/0x170 [ 7823.403506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7823.403506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7823.403506][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.403506][ T254] netlink_unicast+0x449/0x710 [ 7823.403506][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.403506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.403506][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.403506][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.403506][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.403506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7823.403506][ T254] [ 7823.405247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7823.405247][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7823.405247][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7823.405247][ T254] ipv6_find_idev+0x102/0x170 [ 7823.405247][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7823.405247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7823.405247][ T254] netlink_rcv_skb+0x130/0x360 [ 7823.405247][ T254] netlink_unicast+0x449/0x710 [ 7823.405247][ T254] netlink_sendmsg+0x723/0xbe0 [ 7823.405247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7823.405247][ T254] ___sys_sendmsg+0xee/0x170 [ 7823.405247][ T254] __sys_sendmsg+0xcd/0x170 [ 7823.405247][ T254] do_syscall_64+0xc6/0x1e0 [ 7823.405247][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7823.405247][ T254] [ 7833.519866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7833.520359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.520359][ T254] dst_init+0x84/0x4a0 [ 7833.520359][ T254] dst_alloc+0x97/0x150 [ 7833.520359][ T254] ip6_dst_alloc+0x23/0x90 [ 7833.520359][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7833.520359][ T254] ip6_pol_route+0x56f/0x840 [ 7833.520359][ T254] fib6_rule_lookup+0x334/0x630 [ 7833.520359][ T254] ip6_route_output_flags+0x259/0x480 [ 7833.520359][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7833.520359][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7833.520359][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.520359][ T254] netlink_unicast+0x449/0x710 [ 7833.520359][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.520359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.520359][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.520359][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.520359][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.520359][ T254] [ 7833.522587][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.522587][ T254] netdev_get_by_index+0x5e/0x80 [ 7833.522587][ T254] fib6_nh_init+0x3d8/0x1580 [ 7833.522587][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7833.522587][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7833.522587][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7833.522587][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7833.522587][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7833.522587][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7833.522587][ T254] addrconf_dad_begin+0x310/0x670 [ 7833.522587][ T254] addrconf_dad_work+0x10b/0xab0 [ 7833.522587][ T254] process_one_work+0x84d/0x18a0 [ 7833.522587][ T254] worker_thread+0x587/0xd30 [ 7833.522587][ T254] kthread+0x28a/0x350 [ 7833.522587][ T254] ret_from_fork+0x31/0x70 [ 7833.522587][ T254] ret_from_fork_asm+0x1a/0x30 [ 7833.522587][ T254] [ 7833.524752][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.524752][ T254] netdev_get_by_index+0x5e/0x80 [ 7833.524752][ T254] fib6_nh_init+0x3d8/0x1580 [ 7833.524752][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7833.524752][ T254] ip6_route_add+0x1c/0x140 [ 7833.524752][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7833.524752][ T254] inet6_addr_add+0x4f8/0xa40 [ 7833.524752][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7833.524752][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7833.524752][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.524752][ T254] netlink_unicast+0x449/0x710 [ 7833.524752][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.524752][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.524752][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.524752][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.524752][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.524752][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7833.524752][ T254] [ 7833.527020][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.527020][ T254] netdev_get_by_index+0x5e/0x80 [ 7833.527020][ T254] fib6_nh_init+0x3d8/0x1580 [ 7833.527020][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7833.527020][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7833.527020][ T254] ipv6_add_addr+0x411/0x2000 [ 7833.527020][ T254] inet6_addr_add+0x30e/0xa40 [ 7833.527020][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7833.527020][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7833.527020][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.527020][ T254] netlink_unicast+0x449/0x710 [ 7833.527020][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.527020][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.527020][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.527020][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.527020][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.527020][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7833.527020][ T254] [ 7833.529278][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.529278][ T254] netdev_get_by_index+0x5e/0x80 [ 7833.529278][ T254] fib6_nh_init+0x3d8/0x1580 [ 7833.529278][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7833.529278][ T254] ip6_route_add+0x1c/0x140 [ 7833.529278][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7833.529278][ T254] addrconf_add_dev+0xe2/0x170 [ 7833.529278][ T254] inet6_addr_add+0x12f/0xa40 [ 7833.529278][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7833.529278][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7833.529278][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.529278][ T254] netlink_unicast+0x449/0x710 [ 7833.529278][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.529278][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.529278][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.529278][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.529278][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.529278][ T254] [ 7833.531496][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.531496][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7833.531496][ T254] ipv6_find_idev+0x102/0x170 [ 7833.531496][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7833.531496][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7833.531496][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.531496][ T254] netlink_unicast+0x449/0x710 [ 7833.531496][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.531496][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.531496][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.531496][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.531496][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.531496][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7833.531496][ T254] [ 7833.533228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7833.533228][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7833.533228][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7833.533228][ T254] ipv6_find_idev+0x102/0x170 [ 7833.533228][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7833.533228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7833.533228][ T254] netlink_rcv_skb+0x130/0x360 [ 7833.533228][ T254] netlink_unicast+0x449/0x710 [ 7833.533228][ T254] netlink_sendmsg+0x723/0xbe0 [ 7833.533228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7833.533228][ T254] ___sys_sendmsg+0xee/0x170 [ 7833.533228][ T254] __sys_sendmsg+0xcd/0x170 [ 7833.533228][ T254] do_syscall_64+0xc6/0x1e0 [ 7833.533228][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7833.533228][ T254] [ 7843.775859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7843.776356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.776356][ T254] dst_init+0x84/0x4a0 [ 7843.776356][ T254] dst_alloc+0x97/0x150 [ 7843.776356][ T254] ip6_dst_alloc+0x23/0x90 [ 7843.776356][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7843.776356][ T254] ip6_pol_route+0x56f/0x840 [ 7843.776356][ T254] fib6_rule_lookup+0x334/0x630 [ 7843.776356][ T254] ip6_route_output_flags+0x259/0x480 [ 7843.776356][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7843.776356][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7843.776356][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.776356][ T254] netlink_unicast+0x449/0x710 [ 7843.776356][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.776356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.776356][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.776356][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.776356][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.776356][ T254] [ 7843.778581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.778581][ T254] netdev_get_by_index+0x5e/0x80 [ 7843.778581][ T254] fib6_nh_init+0x3d8/0x1580 [ 7843.778581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7843.778581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7843.778581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7843.778581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7843.778581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7843.778581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7843.778581][ T254] addrconf_dad_begin+0x310/0x670 [ 7843.778581][ T254] addrconf_dad_work+0x10b/0xab0 [ 7843.778581][ T254] process_one_work+0x84d/0x18a0 [ 7843.778581][ T254] worker_thread+0x587/0xd30 [ 7843.778581][ T254] kthread+0x28a/0x350 [ 7843.778581][ T254] ret_from_fork+0x31/0x70 [ 7843.778581][ T254] ret_from_fork_asm+0x1a/0x30 [ 7843.778581][ T254] [ 7843.780751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.780751][ T254] netdev_get_by_index+0x5e/0x80 [ 7843.780751][ T254] fib6_nh_init+0x3d8/0x1580 [ 7843.780751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7843.780751][ T254] ip6_route_add+0x1c/0x140 [ 7843.780751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7843.780751][ T254] inet6_addr_add+0x4f8/0xa40 [ 7843.780751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7843.780751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7843.780751][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.780751][ T254] netlink_unicast+0x449/0x710 [ 7843.780751][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.780751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.780751][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.780751][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.780751][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.780751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7843.780751][ T254] [ 7843.783037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.783037][ T254] netdev_get_by_index+0x5e/0x80 [ 7843.783037][ T254] fib6_nh_init+0x3d8/0x1580 [ 7843.783037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7843.783037][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7843.783037][ T254] ipv6_add_addr+0x411/0x2000 [ 7843.783037][ T254] inet6_addr_add+0x30e/0xa40 [ 7843.783037][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7843.783037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7843.783037][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.783037][ T254] netlink_unicast+0x449/0x710 [ 7843.783037][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.783037][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.783037][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.783037][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.783037][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.783037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7843.783037][ T254] [ 7843.785298][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.785298][ T254] netdev_get_by_index+0x5e/0x80 [ 7843.785298][ T254] fib6_nh_init+0x3d8/0x1580 [ 7843.785298][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7843.785298][ T254] ip6_route_add+0x1c/0x140 [ 7843.785298][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7843.785298][ T254] addrconf_add_dev+0xe2/0x170 [ 7843.785298][ T254] inet6_addr_add+0x12f/0xa40 [ 7843.785298][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7843.785298][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7843.785298][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.785298][ T254] netlink_unicast+0x449/0x710 [ 7843.785298][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.785298][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.785298][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.785298][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.785298][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.785298][ T254] [ 7843.787526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.787526][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7843.787526][ T254] ipv6_find_idev+0x102/0x170 [ 7843.787526][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7843.787526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7843.787526][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.787526][ T254] netlink_unicast+0x449/0x710 [ 7843.787526][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.787526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.787526][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.787526][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.787526][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.787526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7843.787526][ T254] [ 7843.789316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7843.789316][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7843.789316][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7843.789316][ T254] ipv6_find_idev+0x102/0x170 [ 7843.789316][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7843.789316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7843.789316][ T254] netlink_rcv_skb+0x130/0x360 [ 7843.789316][ T254] netlink_unicast+0x449/0x710 [ 7843.789316][ T254] netlink_sendmsg+0x723/0xbe0 [ 7843.789316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7843.789316][ T254] ___sys_sendmsg+0xee/0x170 [ 7843.789316][ T254] __sys_sendmsg+0xcd/0x170 [ 7843.789316][ T254] do_syscall_64+0xc6/0x1e0 [ 7843.789316][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7843.789316][ T254] [ 7854.031839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7854.032333][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.032333][ T254] dst_init+0x84/0x4a0 [ 7854.032333][ T254] dst_alloc+0x97/0x150 [ 7854.032333][ T254] ip6_dst_alloc+0x23/0x90 [ 7854.032333][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7854.032333][ T254] ip6_pol_route+0x56f/0x840 [ 7854.032333][ T254] fib6_rule_lookup+0x334/0x630 [ 7854.032333][ T254] ip6_route_output_flags+0x259/0x480 [ 7854.032333][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7854.032333][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7854.032333][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.032333][ T254] netlink_unicast+0x449/0x710 [ 7854.032333][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.032333][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.032333][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.032333][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.032333][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.032333][ T254] [ 7854.034568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.034568][ T254] netdev_get_by_index+0x5e/0x80 [ 7854.034568][ T254] fib6_nh_init+0x3d8/0x1580 [ 7854.034568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7854.034568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7854.034568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7854.034568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7854.034568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7854.034568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7854.034568][ T254] addrconf_dad_begin+0x310/0x670 [ 7854.034568][ T254] addrconf_dad_work+0x10b/0xab0 [ 7854.034568][ T254] process_one_work+0x84d/0x18a0 [ 7854.034568][ T254] worker_thread+0x587/0xd30 [ 7854.034568][ T254] kthread+0x28a/0x350 [ 7854.034568][ T254] ret_from_fork+0x31/0x70 [ 7854.034568][ T254] ret_from_fork_asm+0x1a/0x30 [ 7854.034568][ T254] [ 7854.036739][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.036739][ T254] netdev_get_by_index+0x5e/0x80 [ 7854.036739][ T254] fib6_nh_init+0x3d8/0x1580 [ 7854.036739][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7854.036739][ T254] ip6_route_add+0x1c/0x140 [ 7854.036739][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7854.036739][ T254] inet6_addr_add+0x4f8/0xa40 [ 7854.036739][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7854.036739][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7854.036739][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.036739][ T254] netlink_unicast+0x449/0x710 [ 7854.036739][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.036739][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.036739][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.036739][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.036739][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.036739][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7854.036739][ T254] [ 7854.038997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.038997][ T254] netdev_get_by_index+0x5e/0x80 [ 7854.038997][ T254] fib6_nh_init+0x3d8/0x1580 [ 7854.038997][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7854.038997][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7854.038997][ T254] ipv6_add_addr+0x411/0x2000 [ 7854.038997][ T254] inet6_addr_add+0x30e/0xa40 [ 7854.038997][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7854.038997][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7854.038997][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.038997][ T254] netlink_unicast+0x449/0x710 [ 7854.038997][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.038997][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.038997][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.038997][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.038997][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.038997][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7854.038997][ T254] [ 7854.041288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.041288][ T254] netdev_get_by_index+0x5e/0x80 [ 7854.041288][ T254] fib6_nh_init+0x3d8/0x1580 [ 7854.041288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7854.041288][ T254] ip6_route_add+0x1c/0x140 [ 7854.041288][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7854.041288][ T254] addrconf_add_dev+0xe2/0x170 [ 7854.041288][ T254] inet6_addr_add+0x12f/0xa40 [ 7854.041288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7854.041288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7854.041288][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.041288][ T254] netlink_unicast+0x449/0x710 [ 7854.041288][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.041288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.041288][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.041288][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.041288][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.041288][ T254] [ 7854.043507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.043507][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7854.043507][ T254] ipv6_find_idev+0x102/0x170 [ 7854.043507][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7854.043507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7854.043507][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.043507][ T254] netlink_unicast+0x449/0x710 [ 7854.043507][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.043507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.043507][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.043507][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.043507][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.043507][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7854.043507][ T254] [ 7854.045243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7854.045243][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7854.045243][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7854.045243][ T254] ipv6_find_idev+0x102/0x170 [ 7854.045243][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7854.045243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7854.045243][ T254] netlink_rcv_skb+0x130/0x360 [ 7854.045243][ T254] netlink_unicast+0x449/0x710 [ 7854.045243][ T254] netlink_sendmsg+0x723/0xbe0 [ 7854.045243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7854.045243][ T254] ___sys_sendmsg+0xee/0x170 [ 7854.045243][ T254] __sys_sendmsg+0xcd/0x170 [ 7854.045243][ T254] do_syscall_64+0xc6/0x1e0 [ 7854.045243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7854.045243][ T254] [ 7864.287848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7864.288330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.288330][ T254] dst_init+0x84/0x4a0 [ 7864.288330][ T254] dst_alloc+0x97/0x150 [ 7864.288330][ T254] ip6_dst_alloc+0x23/0x90 [ 7864.288330][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7864.288330][ T254] ip6_pol_route+0x56f/0x840 [ 7864.288330][ T254] fib6_rule_lookup+0x334/0x630 [ 7864.288330][ T254] ip6_route_output_flags+0x259/0x480 [ 7864.288330][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7864.288330][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7864.288330][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.288330][ T254] netlink_unicast+0x449/0x710 [ 7864.288330][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.288330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.288330][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.288330][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.288330][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.288330][ T254] [ 7864.290540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.290540][ T254] netdev_get_by_index+0x5e/0x80 [ 7864.290540][ T254] fib6_nh_init+0x3d8/0x1580 [ 7864.290540][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7864.290540][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7864.290540][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7864.290540][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7864.290540][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7864.290540][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7864.290540][ T254] addrconf_dad_begin+0x310/0x670 [ 7864.290540][ T254] addrconf_dad_work+0x10b/0xab0 [ 7864.290540][ T254] process_one_work+0x84d/0x18a0 [ 7864.290540][ T254] worker_thread+0x587/0xd30 [ 7864.290540][ T254] kthread+0x28a/0x350 [ 7864.290540][ T254] ret_from_fork+0x31/0x70 [ 7864.290540][ T254] ret_from_fork_asm+0x1a/0x30 [ 7864.290540][ T254] [ 7864.292719][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.292719][ T254] netdev_get_by_index+0x5e/0x80 [ 7864.292719][ T254] fib6_nh_init+0x3d8/0x1580 [ 7864.292719][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7864.292719][ T254] ip6_route_add+0x1c/0x140 [ 7864.292719][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7864.292719][ T254] inet6_addr_add+0x4f8/0xa40 [ 7864.292719][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7864.292719][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7864.292719][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.292719][ T254] netlink_unicast+0x449/0x710 [ 7864.292719][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.292719][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.292719][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.292719][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.292719][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.292719][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7864.292719][ T254] [ 7864.294980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.294980][ T254] netdev_get_by_index+0x5e/0x80 [ 7864.294980][ T254] fib6_nh_init+0x3d8/0x1580 [ 7864.294980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7864.294980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7864.294980][ T254] ipv6_add_addr+0x411/0x2000 [ 7864.294980][ T254] inet6_addr_add+0x30e/0xa40 [ 7864.294980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7864.294980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7864.294980][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.294980][ T254] netlink_unicast+0x449/0x710 [ 7864.294980][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.294980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.294980][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.294980][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.294980][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.294980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7864.294980][ T254] [ 7864.297238][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.297238][ T254] netdev_get_by_index+0x5e/0x80 [ 7864.297238][ T254] fib6_nh_init+0x3d8/0x1580 [ 7864.297238][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7864.297238][ T254] ip6_route_add+0x1c/0x140 [ 7864.297238][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7864.297238][ T254] addrconf_add_dev+0xe2/0x170 [ 7864.297238][ T254] inet6_addr_add+0x12f/0xa40 [ 7864.297238][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7864.297238][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7864.297238][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.297238][ T254] netlink_unicast+0x449/0x710 [ 7864.297238][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.297238][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.297238][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.297238][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.297238][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.297238][ T254] [ 7864.299461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.299461][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7864.299461][ T254] ipv6_find_idev+0x102/0x170 [ 7864.299461][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7864.299461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7864.299461][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.299461][ T254] netlink_unicast+0x449/0x710 [ 7864.299461][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.299461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.299461][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.299461][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.299461][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.299461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7864.299461][ T254] [ 7864.301206][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7864.301206][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7864.301206][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7864.301206][ T254] ipv6_find_idev+0x102/0x170 [ 7864.301206][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7864.301206][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7864.301206][ T254] netlink_rcv_skb+0x130/0x360 [ 7864.301206][ T254] netlink_unicast+0x449/0x710 [ 7864.301206][ T254] netlink_sendmsg+0x723/0xbe0 [ 7864.301206][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7864.301206][ T254] ___sys_sendmsg+0xee/0x170 [ 7864.301206][ T254] __sys_sendmsg+0xcd/0x170 [ 7864.301206][ T254] do_syscall_64+0xc6/0x1e0 [ 7864.301206][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7864.301206][ T254] [ 7874.351842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7874.352330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.352330][ T254] dst_init+0x84/0x4a0 [ 7874.352330][ T254] dst_alloc+0x97/0x150 [ 7874.352330][ T254] ip6_dst_alloc+0x23/0x90 [ 7874.352330][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7874.352330][ T254] ip6_pol_route+0x56f/0x840 [ 7874.352330][ T254] fib6_rule_lookup+0x334/0x630 [ 7874.352330][ T254] ip6_route_output_flags+0x259/0x480 [ 7874.352330][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7874.352330][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7874.352330][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.352330][ T254] netlink_unicast+0x449/0x710 [ 7874.352330][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.352330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.352330][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.352330][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.352330][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.352330][ T254] [ 7874.354556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.354556][ T254] netdev_get_by_index+0x5e/0x80 [ 7874.354556][ T254] fib6_nh_init+0x3d8/0x1580 [ 7874.354556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7874.354556][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7874.354556][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7874.354556][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7874.354556][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7874.354556][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7874.354556][ T254] addrconf_dad_begin+0x310/0x670 [ 7874.354556][ T254] addrconf_dad_work+0x10b/0xab0 [ 7874.354556][ T254] process_one_work+0x84d/0x18a0 [ 7874.354556][ T254] worker_thread+0x587/0xd30 [ 7874.354556][ T254] kthread+0x28a/0x350 [ 7874.354556][ T254] ret_from_fork+0x31/0x70 [ 7874.354556][ T254] ret_from_fork_asm+0x1a/0x30 [ 7874.354556][ T254] [ 7874.356725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.356725][ T254] netdev_get_by_index+0x5e/0x80 [ 7874.356725][ T254] fib6_nh_init+0x3d8/0x1580 [ 7874.356725][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7874.356725][ T254] ip6_route_add+0x1c/0x140 [ 7874.356725][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7874.356725][ T254] inet6_addr_add+0x4f8/0xa40 [ 7874.356725][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7874.356725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7874.356725][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.356725][ T254] netlink_unicast+0x449/0x710 [ 7874.356725][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.356725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.356725][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.356725][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.356725][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.356725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7874.356725][ T254] [ 7874.358984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.358984][ T254] netdev_get_by_index+0x5e/0x80 [ 7874.358984][ T254] fib6_nh_init+0x3d8/0x1580 [ 7874.358984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7874.358984][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7874.358984][ T254] ipv6_add_addr+0x411/0x2000 [ 7874.358984][ T254] inet6_addr_add+0x30e/0xa40 [ 7874.358984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7874.358984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7874.358984][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.358984][ T254] netlink_unicast+0x449/0x710 [ 7874.358984][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.358984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.358984][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.358984][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.358984][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.358984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7874.358984][ T254] [ 7874.361257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.361257][ T254] netdev_get_by_index+0x5e/0x80 [ 7874.361257][ T254] fib6_nh_init+0x3d8/0x1580 [ 7874.361257][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7874.361257][ T254] ip6_route_add+0x1c/0x140 [ 7874.361257][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7874.361257][ T254] addrconf_add_dev+0xe2/0x170 [ 7874.361257][ T254] inet6_addr_add+0x12f/0xa40 [ 7874.361257][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7874.361257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7874.361257][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.361257][ T254] netlink_unicast+0x449/0x710 [ 7874.361257][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.361257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.361257][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.361257][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.361257][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.361257][ T254] [ 7874.363476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.363476][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7874.363476][ T254] ipv6_find_idev+0x102/0x170 [ 7874.363476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7874.363476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7874.363476][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.363476][ T254] netlink_unicast+0x449/0x710 [ 7874.363476][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.363476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.363476][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.363476][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.363476][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.363476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7874.363476][ T254] [ 7874.365214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7874.365214][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7874.365214][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7874.365214][ T254] ipv6_find_idev+0x102/0x170 [ 7874.365214][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7874.365214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7874.365214][ T254] netlink_rcv_skb+0x130/0x360 [ 7874.365214][ T254] netlink_unicast+0x449/0x710 [ 7874.365214][ T254] netlink_sendmsg+0x723/0xbe0 [ 7874.365214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7874.365214][ T254] ___sys_sendmsg+0xee/0x170 [ 7874.365214][ T254] __sys_sendmsg+0xcd/0x170 [ 7874.365214][ T254] do_syscall_64+0xc6/0x1e0 [ 7874.365214][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7874.365214][ T254] [ 7884.471854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7884.472487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.472487][ T254] dst_init+0x84/0x4a0 [ 7884.472487][ T254] dst_alloc+0x97/0x150 [ 7884.472487][ T254] ip6_dst_alloc+0x23/0x90 [ 7884.472487][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7884.472487][ T254] ip6_pol_route+0x56f/0x840 [ 7884.472487][ T254] fib6_rule_lookup+0x334/0x630 [ 7884.472487][ T254] ip6_route_output_flags+0x259/0x480 [ 7884.472487][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7884.472487][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7884.472487][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.472487][ T254] netlink_unicast+0x449/0x710 [ 7884.472487][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.472487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.472487][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.472487][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.472487][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.472487][ T254] [ 7884.476034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.476034][ T254] netdev_get_by_index+0x5e/0x80 [ 7884.476034][ T254] fib6_nh_init+0x3d8/0x1580 [ 7884.476034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7884.476034][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7884.476034][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7884.476034][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7884.476034][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7884.476034][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7884.476034][ T254] addrconf_dad_begin+0x310/0x670 [ 7884.476034][ T254] addrconf_dad_work+0x10b/0xab0 [ 7884.476034][ T254] process_one_work+0x84d/0x18a0 [ 7884.476034][ T254] worker_thread+0x587/0xd30 [ 7884.476034][ T254] kthread+0x28a/0x350 [ 7884.476034][ T254] ret_from_fork+0x31/0x70 [ 7884.476034][ T254] ret_from_fork_asm+0x1a/0x30 [ 7884.476034][ T254] [ 7884.479532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.479532][ T254] netdev_get_by_index+0x5e/0x80 [ 7884.479532][ T254] fib6_nh_init+0x3d8/0x1580 [ 7884.479532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7884.479532][ T254] ip6_route_add+0x1c/0x140 [ 7884.479532][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7884.479532][ T254] inet6_addr_add+0x4f8/0xa40 [ 7884.479532][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7884.479532][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7884.479532][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.479532][ T254] netlink_unicast+0x449/0x710 [ 7884.479532][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.479532][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.479532][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.479532][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.479532][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.479532][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7884.479532][ T254] [ 7884.483185][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.483185][ T254] netdev_get_by_index+0x5e/0x80 [ 7884.483185][ T254] fib6_nh_init+0x3d8/0x1580 [ 7884.483185][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7884.483185][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7884.483185][ T254] ipv6_add_addr+0x411/0x2000 [ 7884.483185][ T254] inet6_addr_add+0x30e/0xa40 [ 7884.483185][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7884.483185][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7884.483185][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.483185][ T254] netlink_unicast+0x449/0x710 [ 7884.483185][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.483185][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.483185][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.483185][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.483185][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.483185][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7884.483185][ T254] [ 7884.486848][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.486848][ T254] netdev_get_by_index+0x5e/0x80 [ 7884.486848][ T254] fib6_nh_init+0x3d8/0x1580 [ 7884.486848][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7884.486848][ T254] ip6_route_add+0x1c/0x140 [ 7884.486848][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7884.486848][ T254] addrconf_add_dev+0xe2/0x170 [ 7884.486848][ T254] inet6_addr_add+0x12f/0xa40 [ 7884.486848][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7884.486848][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7884.486848][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.486848][ T254] netlink_unicast+0x449/0x710 [ 7884.486848][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.486848][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.486848][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.486848][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.486848][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.486848][ T254] [ 7884.490433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.490433][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7884.490433][ T254] ipv6_find_idev+0x102/0x170 [ 7884.490433][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7884.490433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7884.490433][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.490433][ T254] netlink_unicast+0x449/0x710 [ 7884.490433][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.490433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.490433][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.490433][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.490433][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.490433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7884.490433][ T254] [ 7884.493267][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7884.493267][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7884.493267][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7884.493267][ T254] ipv6_find_idev+0x102/0x170 [ 7884.493267][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7884.493267][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7884.493267][ T254] netlink_rcv_skb+0x130/0x360 [ 7884.493267][ T254] netlink_unicast+0x449/0x710 [ 7884.493267][ T254] netlink_sendmsg+0x723/0xbe0 [ 7884.493267][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7884.493267][ T254] ___sys_sendmsg+0xee/0x170 [ 7884.493267][ T254] __sys_sendmsg+0xcd/0x170 [ 7884.493267][ T254] do_syscall_64+0xc6/0x1e0 [ 7884.493267][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7884.493267][ T254] [ 7894.567860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7894.568397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.568397][ T254] dst_init+0x84/0x4a0 [ 7894.568397][ T254] dst_alloc+0x97/0x150 [ 7894.568397][ T254] ip6_dst_alloc+0x23/0x90 [ 7894.568397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7894.568397][ T254] ip6_pol_route+0x56f/0x840 [ 7894.568397][ T254] fib6_rule_lookup+0x334/0x630 [ 7894.568397][ T254] ip6_route_output_flags+0x259/0x480 [ 7894.568397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7894.568397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7894.568397][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.568397][ T254] netlink_unicast+0x449/0x710 [ 7894.568397][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.568397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.568397][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.568397][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.568397][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.568397][ T254] [ 7894.571942][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.571942][ T254] netdev_get_by_index+0x5e/0x80 [ 7894.571942][ T254] fib6_nh_init+0x3d8/0x1580 [ 7894.571942][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7894.571942][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7894.571942][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7894.571942][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7894.571942][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7894.571942][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7894.571942][ T254] addrconf_dad_begin+0x310/0x670 [ 7894.571942][ T254] addrconf_dad_work+0x10b/0xab0 [ 7894.571942][ T254] process_one_work+0x84d/0x18a0 [ 7894.571942][ T254] worker_thread+0x587/0xd30 [ 7894.571942][ T254] kthread+0x28a/0x350 [ 7894.571942][ T254] ret_from_fork+0x31/0x70 [ 7894.571942][ T254] ret_from_fork_asm+0x1a/0x30 [ 7894.571942][ T254] [ 7894.575433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.575433][ T254] netdev_get_by_index+0x5e/0x80 [ 7894.575433][ T254] fib6_nh_init+0x3d8/0x1580 [ 7894.575433][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7894.575433][ T254] ip6_route_add+0x1c/0x140 [ 7894.575433][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7894.575433][ T254] inet6_addr_add+0x4f8/0xa40 [ 7894.575433][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7894.575433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7894.575433][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.575433][ T254] netlink_unicast+0x449/0x710 [ 7894.575433][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.575433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.575433][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.575433][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.575433][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.575433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7894.575433][ T254] [ 7894.579081][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.579081][ T254] netdev_get_by_index+0x5e/0x80 [ 7894.579081][ T254] fib6_nh_init+0x3d8/0x1580 [ 7894.579081][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7894.579081][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7894.579081][ T254] ipv6_add_addr+0x411/0x2000 [ 7894.579081][ T254] inet6_addr_add+0x30e/0xa40 [ 7894.579081][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7894.579081][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7894.579081][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.579081][ T254] netlink_unicast+0x449/0x710 [ 7894.579081][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.579081][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.579081][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.579081][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.579081][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.579081][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7894.579081][ T254] [ 7894.582745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.582745][ T254] netdev_get_by_index+0x5e/0x80 [ 7894.582745][ T254] fib6_nh_init+0x3d8/0x1580 [ 7894.582745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7894.582745][ T254] ip6_route_add+0x1c/0x140 [ 7894.582745][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7894.582745][ T254] addrconf_add_dev+0xe2/0x170 [ 7894.582745][ T254] inet6_addr_add+0x12f/0xa40 [ 7894.582745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7894.582745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7894.582745][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.582745][ T254] netlink_unicast+0x449/0x710 [ 7894.582745][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.582745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.582745][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.582745][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.582745][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.582745][ T254] [ 7894.586335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.586335][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7894.586335][ T254] ipv6_find_idev+0x102/0x170 [ 7894.586335][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7894.586335][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7894.586335][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.586335][ T254] netlink_unicast+0x449/0x710 [ 7894.586335][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.586335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.586335][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.586335][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.586335][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.586335][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7894.586335][ T254] [ 7894.589146][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7894.589146][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7894.589146][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7894.589146][ T254] ipv6_find_idev+0x102/0x170 [ 7894.589146][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7894.589146][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7894.589146][ T254] netlink_rcv_skb+0x130/0x360 [ 7894.589146][ T254] netlink_unicast+0x449/0x710 [ 7894.589146][ T254] netlink_sendmsg+0x723/0xbe0 [ 7894.589146][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7894.589146][ T254] ___sys_sendmsg+0xee/0x170 [ 7894.589146][ T254] __sys_sendmsg+0xcd/0x170 [ 7894.589146][ T254] do_syscall_64+0xc6/0x1e0 [ 7894.589146][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7894.589146][ T254] [ 7904.711856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7904.712509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.712509][ T254] dst_init+0x84/0x4a0 [ 7904.712509][ T254] dst_alloc+0x97/0x150 [ 7904.712509][ T254] ip6_dst_alloc+0x23/0x90 [ 7904.712509][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7904.712509][ T254] ip6_pol_route+0x56f/0x840 [ 7904.712509][ T254] fib6_rule_lookup+0x334/0x630 [ 7904.712509][ T254] ip6_route_output_flags+0x259/0x480 [ 7904.712509][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7904.712509][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7904.712509][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.712509][ T254] netlink_unicast+0x449/0x710 [ 7904.712509][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.712509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.712509][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.712509][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.712509][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.712509][ T254] [ 7904.716047][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.716047][ T254] netdev_get_by_index+0x5e/0x80 [ 7904.716047][ T254] fib6_nh_init+0x3d8/0x1580 [ 7904.716047][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7904.716047][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7904.716047][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7904.716047][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7904.716047][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7904.716047][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7904.716047][ T254] addrconf_dad_begin+0x310/0x670 [ 7904.716047][ T254] addrconf_dad_work+0x10b/0xab0 [ 7904.716047][ T254] process_one_work+0x84d/0x18a0 [ 7904.716047][ T254] worker_thread+0x587/0xd30 [ 7904.716047][ T254] kthread+0x28a/0x350 [ 7904.716047][ T254] ret_from_fork+0x31/0x70 [ 7904.716047][ T254] ret_from_fork_asm+0x1a/0x30 [ 7904.716047][ T254] [ 7904.719525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.719525][ T254] netdev_get_by_index+0x5e/0x80 [ 7904.719525][ T254] fib6_nh_init+0x3d8/0x1580 [ 7904.719525][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7904.719525][ T254] ip6_route_add+0x1c/0x140 [ 7904.719525][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7904.719525][ T254] inet6_addr_add+0x4f8/0xa40 [ 7904.719525][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7904.719525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7904.719525][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.719525][ T254] netlink_unicast+0x449/0x710 [ 7904.719525][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.719525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.719525][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.719525][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.719525][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.719525][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7904.719525][ T254] [ 7904.723189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.723189][ T254] netdev_get_by_index+0x5e/0x80 [ 7904.723189][ T254] fib6_nh_init+0x3d8/0x1580 [ 7904.723189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7904.723189][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7904.723189][ T254] ipv6_add_addr+0x411/0x2000 [ 7904.723189][ T254] inet6_addr_add+0x30e/0xa40 [ 7904.723189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7904.723189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7904.723189][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.723189][ T254] netlink_unicast+0x449/0x710 [ 7904.723189][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.723189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.723189][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.723189][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.723189][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.723189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7904.723189][ T254] [ 7904.726862][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.726862][ T254] netdev_get_by_index+0x5e/0x80 [ 7904.726862][ T254] fib6_nh_init+0x3d8/0x1580 [ 7904.726862][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7904.726862][ T254] ip6_route_add+0x1c/0x140 [ 7904.726862][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7904.726862][ T254] addrconf_add_dev+0xe2/0x170 [ 7904.726862][ T254] inet6_addr_add+0x12f/0xa40 [ 7904.726862][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7904.726862][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7904.726862][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.726862][ T254] netlink_unicast+0x449/0x710 [ 7904.726862][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.726862][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.726862][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.726862][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.726862][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.726862][ T254] [ 7904.730446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.730446][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7904.730446][ T254] ipv6_find_idev+0x102/0x170 [ 7904.730446][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7904.730446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7904.730446][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.730446][ T254] netlink_unicast+0x449/0x710 [ 7904.730446][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.730446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.730446][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.730446][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.730446][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.730446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7904.730446][ T254] [ 7904.733281][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7904.733281][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7904.733281][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7904.733281][ T254] ipv6_find_idev+0x102/0x170 [ 7904.733281][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7904.733281][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7904.733281][ T254] netlink_rcv_skb+0x130/0x360 [ 7904.733281][ T254] netlink_unicast+0x449/0x710 [ 7904.733281][ T254] netlink_sendmsg+0x723/0xbe0 [ 7904.733281][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7904.733281][ T254] ___sys_sendmsg+0xee/0x170 [ 7904.733281][ T254] __sys_sendmsg+0xcd/0x170 [ 7904.733281][ T254] do_syscall_64+0xc6/0x1e0 [ 7904.733281][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7904.733281][ T254] [ 7914.975849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7914.976345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.976345][ T254] dst_init+0x84/0x4a0 [ 7914.976345][ T254] dst_alloc+0x97/0x150 [ 7914.976345][ T254] ip6_dst_alloc+0x23/0x90 [ 7914.976345][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7914.976345][ T254] ip6_pol_route+0x56f/0x840 [ 7914.976345][ T254] fib6_rule_lookup+0x334/0x630 [ 7914.976345][ T254] ip6_route_output_flags+0x259/0x480 [ 7914.976345][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7914.976345][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7914.976345][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.976345][ T254] netlink_unicast+0x449/0x710 [ 7914.976345][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.976345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.976345][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.976345][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.976345][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.976345][ T254] [ 7914.978530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.978530][ T254] netdev_get_by_index+0x5e/0x80 [ 7914.978530][ T254] fib6_nh_init+0x3d8/0x1580 [ 7914.978530][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7914.978530][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7914.978530][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7914.978530][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7914.978530][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7914.978530][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7914.978530][ T254] addrconf_dad_begin+0x310/0x670 [ 7914.978530][ T254] addrconf_dad_work+0x10b/0xab0 [ 7914.978530][ T254] process_one_work+0x84d/0x18a0 [ 7914.978530][ T254] worker_thread+0x587/0xd30 [ 7914.978530][ T254] kthread+0x28a/0x350 [ 7914.978530][ T254] ret_from_fork+0x31/0x70 [ 7914.978530][ T254] ret_from_fork_asm+0x1a/0x30 [ 7914.978530][ T254] [ 7914.980685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.980685][ T254] netdev_get_by_index+0x5e/0x80 [ 7914.980685][ T254] fib6_nh_init+0x3d8/0x1580 [ 7914.980685][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7914.980685][ T254] ip6_route_add+0x1c/0x140 [ 7914.980685][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7914.980685][ T254] inet6_addr_add+0x4f8/0xa40 [ 7914.980685][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7914.980685][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7914.980685][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.980685][ T254] netlink_unicast+0x449/0x710 [ 7914.980685][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.980685][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.980685][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.980685][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.980685][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.980685][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7914.980685][ T254] [ 7914.982919][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.982919][ T254] netdev_get_by_index+0x5e/0x80 [ 7914.982919][ T254] fib6_nh_init+0x3d8/0x1580 [ 7914.982919][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7914.982919][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7914.982919][ T254] ipv6_add_addr+0x411/0x2000 [ 7914.982919][ T254] inet6_addr_add+0x30e/0xa40 [ 7914.982919][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7914.982919][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7914.982919][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.982919][ T254] netlink_unicast+0x449/0x710 [ 7914.982919][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.982919][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.982919][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.982919][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.982919][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.982919][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7914.982919][ T254] [ 7914.985161][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.985161][ T254] netdev_get_by_index+0x5e/0x80 [ 7914.985161][ T254] fib6_nh_init+0x3d8/0x1580 [ 7914.985161][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7914.985161][ T254] ip6_route_add+0x1c/0x140 [ 7914.985161][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7914.985161][ T254] addrconf_add_dev+0xe2/0x170 [ 7914.985161][ T254] inet6_addr_add+0x12f/0xa40 [ 7914.985161][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7914.985161][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7914.985161][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.985161][ T254] netlink_unicast+0x449/0x710 [ 7914.985161][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.985161][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.985161][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.985161][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.985161][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.985161][ T254] [ 7914.987358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.987358][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7914.987358][ T254] ipv6_find_idev+0x102/0x170 [ 7914.987358][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7914.987358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7914.987358][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.987358][ T254] netlink_unicast+0x449/0x710 [ 7914.987358][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.987358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.987358][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.987358][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.987358][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.987358][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7914.987358][ T254] [ 7914.989081][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7914.989081][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7914.989081][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7914.989081][ T254] ipv6_find_idev+0x102/0x170 [ 7914.989081][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7914.989081][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7914.989081][ T254] netlink_rcv_skb+0x130/0x360 [ 7914.989081][ T254] netlink_unicast+0x449/0x710 [ 7914.989081][ T254] netlink_sendmsg+0x723/0xbe0 [ 7914.989081][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7914.989081][ T254] ___sys_sendmsg+0xee/0x170 [ 7914.989081][ T254] __sys_sendmsg+0xcd/0x170 [ 7914.989081][ T254] do_syscall_64+0xc6/0x1e0 [ 7914.989081][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7914.989081][ T254] [ 7925.159890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7925.160369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.160369][ T254] dst_init+0x84/0x4a0 [ 7925.160369][ T254] dst_alloc+0x97/0x150 [ 7925.160369][ T254] ip6_dst_alloc+0x23/0x90 [ 7925.160369][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7925.160369][ T254] ip6_pol_route+0x56f/0x840 [ 7925.160369][ T254] fib6_rule_lookup+0x334/0x630 [ 7925.160369][ T254] ip6_route_output_flags+0x259/0x480 [ 7925.160369][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7925.160369][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7925.160369][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.160369][ T254] netlink_unicast+0x449/0x710 [ 7925.160369][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.160369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.160369][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.160369][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.160369][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.160369][ T254] [ 7925.162575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.162575][ T254] netdev_get_by_index+0x5e/0x80 [ 7925.162575][ T254] fib6_nh_init+0x3d8/0x1580 [ 7925.162575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7925.162575][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7925.162575][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7925.162575][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7925.162575][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7925.162575][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7925.162575][ T254] addrconf_dad_begin+0x310/0x670 [ 7925.162575][ T254] addrconf_dad_work+0x10b/0xab0 [ 7925.162575][ T254] process_one_work+0x84d/0x18a0 [ 7925.162575][ T254] worker_thread+0x587/0xd30 [ 7925.162575][ T254] kthread+0x28a/0x350 [ 7925.162575][ T254] ret_from_fork+0x31/0x70 [ 7925.162575][ T254] ret_from_fork_asm+0x1a/0x30 [ 7925.162575][ T254] [ 7925.164731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.164731][ T254] netdev_get_by_index+0x5e/0x80 [ 7925.164731][ T254] fib6_nh_init+0x3d8/0x1580 [ 7925.164731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7925.164731][ T254] ip6_route_add+0x1c/0x140 [ 7925.164731][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7925.164731][ T254] inet6_addr_add+0x4f8/0xa40 [ 7925.164731][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7925.164731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7925.164731][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.164731][ T254] netlink_unicast+0x449/0x710 [ 7925.164731][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.164731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.164731][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.164731][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.164731][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.164731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7925.164731][ T254] [ 7925.166976][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.166976][ T254] netdev_get_by_index+0x5e/0x80 [ 7925.166976][ T254] fib6_nh_init+0x3d8/0x1580 [ 7925.166976][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7925.166976][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7925.166976][ T254] ipv6_add_addr+0x411/0x2000 [ 7925.166976][ T254] inet6_addr_add+0x30e/0xa40 [ 7925.166976][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7925.166976][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7925.166976][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.166976][ T254] netlink_unicast+0x449/0x710 [ 7925.166976][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.166976][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.166976][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.166976][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.166976][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.166976][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7925.166976][ T254] [ 7925.169214][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.169214][ T254] netdev_get_by_index+0x5e/0x80 [ 7925.169214][ T254] fib6_nh_init+0x3d8/0x1580 [ 7925.169214][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7925.169214][ T254] ip6_route_add+0x1c/0x140 [ 7925.169214][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7925.169214][ T254] addrconf_add_dev+0xe2/0x170 [ 7925.169214][ T254] inet6_addr_add+0x12f/0xa40 [ 7925.169214][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7925.169214][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7925.169214][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.169214][ T254] netlink_unicast+0x449/0x710 [ 7925.169214][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.169214][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.169214][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.169214][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.169214][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.169214][ T254] [ 7925.171418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.171418][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7925.171418][ T254] ipv6_find_idev+0x102/0x170 [ 7925.171418][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7925.171418][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7925.171418][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.171418][ T254] netlink_unicast+0x449/0x710 [ 7925.171418][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.171418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.171418][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.171418][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.171418][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.171418][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7925.171418][ T254] [ 7925.173137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7925.173137][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7925.173137][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7925.173137][ T254] ipv6_find_idev+0x102/0x170 [ 7925.173137][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7925.173137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7925.173137][ T254] netlink_rcv_skb+0x130/0x360 [ 7925.173137][ T254] netlink_unicast+0x449/0x710 [ 7925.173137][ T254] netlink_sendmsg+0x723/0xbe0 [ 7925.173137][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7925.173137][ T254] ___sys_sendmsg+0xee/0x170 [ 7925.173137][ T254] __sys_sendmsg+0xcd/0x170 [ 7925.173137][ T254] do_syscall_64+0xc6/0x1e0 [ 7925.173137][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7925.173137][ T254] [ 7935.839889][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7935.840366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.840366][ T254] dst_init+0x84/0x4a0 [ 7935.840366][ T254] dst_alloc+0x97/0x150 [ 7935.840366][ T254] ip6_dst_alloc+0x23/0x90 [ 7935.840366][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7935.840366][ T254] ip6_pol_route+0x56f/0x840 [ 7935.840366][ T254] fib6_rule_lookup+0x334/0x630 [ 7935.840366][ T254] ip6_route_output_flags+0x259/0x480 [ 7935.840366][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7935.840366][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7935.840366][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.840366][ T254] netlink_unicast+0x449/0x710 [ 7935.840366][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.840366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.840366][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.840366][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.840366][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.840366][ T254] [ 7935.842577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.842577][ T254] netdev_get_by_index+0x5e/0x80 [ 7935.842577][ T254] fib6_nh_init+0x3d8/0x1580 [ 7935.842577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7935.842577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7935.842577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7935.842577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7935.842577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7935.842577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7935.842577][ T254] addrconf_dad_begin+0x310/0x670 [ 7935.842577][ T254] addrconf_dad_work+0x10b/0xab0 [ 7935.842577][ T254] process_one_work+0x84d/0x18a0 [ 7935.842577][ T254] worker_thread+0x587/0xd30 [ 7935.842577][ T254] kthread+0x28a/0x350 [ 7935.842577][ T254] ret_from_fork+0x31/0x70 [ 7935.842577][ T254] ret_from_fork_asm+0x1a/0x30 [ 7935.842577][ T254] [ 7935.844716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.844716][ T254] netdev_get_by_index+0x5e/0x80 [ 7935.844716][ T254] fib6_nh_init+0x3d8/0x1580 [ 7935.844716][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7935.844716][ T254] ip6_route_add+0x1c/0x140 [ 7935.844716][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7935.844716][ T254] inet6_addr_add+0x4f8/0xa40 [ 7935.844716][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7935.844716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7935.844716][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.844716][ T254] netlink_unicast+0x449/0x710 [ 7935.844716][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.844716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.844716][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.844716][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.844716][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.844716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7935.844716][ T254] [ 7935.846954][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.846954][ T254] netdev_get_by_index+0x5e/0x80 [ 7935.846954][ T254] fib6_nh_init+0x3d8/0x1580 [ 7935.846954][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7935.846954][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7935.846954][ T254] ipv6_add_addr+0x411/0x2000 [ 7935.846954][ T254] inet6_addr_add+0x30e/0xa40 [ 7935.846954][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7935.846954][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7935.846954][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.846954][ T254] netlink_unicast+0x449/0x710 [ 7935.846954][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.846954][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.846954][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.846954][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.846954][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.846954][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7935.846954][ T254] [ 7935.849186][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.849186][ T254] netdev_get_by_index+0x5e/0x80 [ 7935.849186][ T254] fib6_nh_init+0x3d8/0x1580 [ 7935.849186][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7935.849186][ T254] ip6_route_add+0x1c/0x140 [ 7935.849186][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7935.849186][ T254] addrconf_add_dev+0xe2/0x170 [ 7935.849186][ T254] inet6_addr_add+0x12f/0xa40 [ 7935.849186][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7935.849186][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7935.849186][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.849186][ T254] netlink_unicast+0x449/0x710 [ 7935.849186][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.849186][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.849186][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.849186][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.849186][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.849186][ T254] [ 7935.851395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.851395][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7935.851395][ T254] ipv6_find_idev+0x102/0x170 [ 7935.851395][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7935.851395][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7935.851395][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.851395][ T254] netlink_unicast+0x449/0x710 [ 7935.851395][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.851395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.851395][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.851395][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.851395][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.851395][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7935.851395][ T254] [ 7935.853111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7935.853111][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7935.853111][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7935.853111][ T254] ipv6_find_idev+0x102/0x170 [ 7935.853111][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7935.853111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7935.853111][ T254] netlink_rcv_skb+0x130/0x360 [ 7935.853111][ T254] netlink_unicast+0x449/0x710 [ 7935.853111][ T254] netlink_sendmsg+0x723/0xbe0 [ 7935.853111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7935.853111][ T254] ___sys_sendmsg+0xee/0x170 [ 7935.853111][ T254] __sys_sendmsg+0xcd/0x170 [ 7935.853111][ T254] do_syscall_64+0xc6/0x1e0 [ 7935.853111][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7935.853111][ T254] [ 7946.095853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7946.096326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.096326][ T254] dst_init+0x84/0x4a0 [ 7946.096326][ T254] dst_alloc+0x97/0x150 [ 7946.096326][ T254] ip6_dst_alloc+0x23/0x90 [ 7946.096326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7946.096326][ T254] ip6_pol_route+0x56f/0x840 [ 7946.096326][ T254] fib6_rule_lookup+0x334/0x630 [ 7946.096326][ T254] ip6_route_output_flags+0x259/0x480 [ 7946.096326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7946.096326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7946.096326][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.096326][ T254] netlink_unicast+0x449/0x710 [ 7946.096326][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.096326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.096326][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.096326][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.096326][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.096326][ T254] [ 7946.098540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.098540][ T254] netdev_get_by_index+0x5e/0x80 [ 7946.098540][ T254] fib6_nh_init+0x3d8/0x1580 [ 7946.098540][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7946.098540][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7946.098540][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7946.098540][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7946.098540][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7946.098540][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7946.098540][ T254] addrconf_dad_begin+0x310/0x670 [ 7946.098540][ T254] addrconf_dad_work+0x10b/0xab0 [ 7946.098540][ T254] process_one_work+0x84d/0x18a0 [ 7946.098540][ T254] worker_thread+0x587/0xd30 [ 7946.098540][ T254] kthread+0x28a/0x350 [ 7946.098540][ T254] ret_from_fork+0x31/0x70 [ 7946.098540][ T254] ret_from_fork_asm+0x1a/0x30 [ 7946.098540][ T254] [ 7946.100714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.100714][ T254] netdev_get_by_index+0x5e/0x80 [ 7946.100714][ T254] fib6_nh_init+0x3d8/0x1580 [ 7946.100714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7946.100714][ T254] ip6_route_add+0x1c/0x140 [ 7946.100714][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7946.100714][ T254] inet6_addr_add+0x4f8/0xa40 [ 7946.100714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7946.100714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7946.100714][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.100714][ T254] netlink_unicast+0x449/0x710 [ 7946.100714][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.100714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.100714][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.100714][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.100714][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.100714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7946.100714][ T254] [ 7946.102953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.102953][ T254] netdev_get_by_index+0x5e/0x80 [ 7946.102953][ T254] fib6_nh_init+0x3d8/0x1580 [ 7946.102953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7946.102953][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7946.102953][ T254] ipv6_add_addr+0x411/0x2000 [ 7946.102953][ T254] inet6_addr_add+0x30e/0xa40 [ 7946.102953][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7946.102953][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7946.102953][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.102953][ T254] netlink_unicast+0x449/0x710 [ 7946.102953][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.102953][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.102953][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.102953][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.102953][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.102953][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7946.102953][ T254] [ 7946.105201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.105201][ T254] netdev_get_by_index+0x5e/0x80 [ 7946.105201][ T254] fib6_nh_init+0x3d8/0x1580 [ 7946.105201][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7946.105201][ T254] ip6_route_add+0x1c/0x140 [ 7946.105201][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7946.105201][ T254] addrconf_add_dev+0xe2/0x170 [ 7946.105201][ T254] inet6_addr_add+0x12f/0xa40 [ 7946.105201][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7946.105201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7946.105201][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.105201][ T254] netlink_unicast+0x449/0x710 [ 7946.105201][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.105201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.105201][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.105201][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.105201][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.105201][ T254] [ 7946.107398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.107398][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7946.107398][ T254] ipv6_find_idev+0x102/0x170 [ 7946.107398][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7946.107398][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7946.107398][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.107398][ T254] netlink_unicast+0x449/0x710 [ 7946.107398][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.107398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.107398][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.107398][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.107398][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.107398][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7946.107398][ T254] [ 7946.109123][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7946.109123][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7946.109123][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7946.109123][ T254] ipv6_find_idev+0x102/0x170 [ 7946.109123][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7946.109123][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7946.109123][ T254] netlink_rcv_skb+0x130/0x360 [ 7946.109123][ T254] netlink_unicast+0x449/0x710 [ 7946.109123][ T254] netlink_sendmsg+0x723/0xbe0 [ 7946.109123][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7946.109123][ T254] ___sys_sendmsg+0xee/0x170 [ 7946.109123][ T254] __sys_sendmsg+0xcd/0x170 [ 7946.109123][ T254] do_syscall_64+0xc6/0x1e0 [ 7946.109123][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7946.109123][ T254] [ 7956.143853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7956.144330][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.144330][ T254] dst_init+0x84/0x4a0 [ 7956.144330][ T254] dst_alloc+0x97/0x150 [ 7956.144330][ T254] ip6_dst_alloc+0x23/0x90 [ 7956.144330][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7956.144330][ T254] ip6_pol_route+0x56f/0x840 [ 7956.144330][ T254] fib6_rule_lookup+0x334/0x630 [ 7956.144330][ T254] ip6_route_output_flags+0x259/0x480 [ 7956.144330][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7956.144330][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7956.144330][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.144330][ T254] netlink_unicast+0x449/0x710 [ 7956.144330][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.144330][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.144330][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.144330][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.144330][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.144330][ T254] [ 7956.146522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.146522][ T254] netdev_get_by_index+0x5e/0x80 [ 7956.146522][ T254] fib6_nh_init+0x3d8/0x1580 [ 7956.146522][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7956.146522][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7956.146522][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7956.146522][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7956.146522][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7956.146522][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7956.146522][ T254] addrconf_dad_begin+0x310/0x670 [ 7956.146522][ T254] addrconf_dad_work+0x10b/0xab0 [ 7956.146522][ T254] process_one_work+0x84d/0x18a0 [ 7956.146522][ T254] worker_thread+0x587/0xd30 [ 7956.146522][ T254] kthread+0x28a/0x350 [ 7956.146522][ T254] ret_from_fork+0x31/0x70 [ 7956.146522][ T254] ret_from_fork_asm+0x1a/0x30 [ 7956.146522][ T254] [ 7956.148668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.148668][ T254] netdev_get_by_index+0x5e/0x80 [ 7956.148668][ T254] fib6_nh_init+0x3d8/0x1580 [ 7956.148668][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7956.148668][ T254] ip6_route_add+0x1c/0x140 [ 7956.148668][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7956.148668][ T254] inet6_addr_add+0x4f8/0xa40 [ 7956.148668][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7956.148668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7956.148668][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.148668][ T254] netlink_unicast+0x449/0x710 [ 7956.148668][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.148668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.148668][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.148668][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.148668][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.148668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7956.148668][ T254] [ 7956.150915][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.150915][ T254] netdev_get_by_index+0x5e/0x80 [ 7956.150915][ T254] fib6_nh_init+0x3d8/0x1580 [ 7956.150915][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7956.150915][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7956.150915][ T254] ipv6_add_addr+0x411/0x2000 [ 7956.150915][ T254] inet6_addr_add+0x30e/0xa40 [ 7956.150915][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7956.150915][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7956.150915][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.150915][ T254] netlink_unicast+0x449/0x710 [ 7956.150915][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.150915][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.150915][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.150915][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.150915][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.150915][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7956.150915][ T254] [ 7956.153156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.153156][ T254] netdev_get_by_index+0x5e/0x80 [ 7956.153156][ T254] fib6_nh_init+0x3d8/0x1580 [ 7956.153156][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7956.153156][ T254] ip6_route_add+0x1c/0x140 [ 7956.153156][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7956.153156][ T254] addrconf_add_dev+0xe2/0x170 [ 7956.153156][ T254] inet6_addr_add+0x12f/0xa40 [ 7956.153156][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7956.153156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7956.153156][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.153156][ T254] netlink_unicast+0x449/0x710 [ 7956.153156][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.153156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.153156][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.153156][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.153156][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.153156][ T254] [ 7956.155358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.155358][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7956.155358][ T254] ipv6_find_idev+0x102/0x170 [ 7956.155358][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7956.155358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7956.155358][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.155358][ T254] netlink_unicast+0x449/0x710 [ 7956.155358][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.155358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.155358][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.155358][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.155358][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.155358][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7956.155358][ T254] [ 7956.157085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7956.157085][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7956.157085][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7956.157085][ T254] ipv6_find_idev+0x102/0x170 [ 7956.157085][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7956.157085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7956.157085][ T254] netlink_rcv_skb+0x130/0x360 [ 7956.157085][ T254] netlink_unicast+0x449/0x710 [ 7956.157085][ T254] netlink_sendmsg+0x723/0xbe0 [ 7956.157085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7956.157085][ T254] ___sys_sendmsg+0xee/0x170 [ 7956.157085][ T254] __sys_sendmsg+0xcd/0x170 [ 7956.157085][ T254] do_syscall_64+0xc6/0x1e0 [ 7956.157085][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7956.157085][ T254] [ 7966.351787][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7966.352256][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.352256][ T254] dst_init+0x84/0x4a0 [ 7966.352256][ T254] dst_alloc+0x97/0x150 [ 7966.352256][ T254] ip6_dst_alloc+0x23/0x90 [ 7966.352256][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7966.352256][ T254] ip6_pol_route+0x56f/0x840 [ 7966.352256][ T254] fib6_rule_lookup+0x334/0x630 [ 7966.352256][ T254] ip6_route_output_flags+0x259/0x480 [ 7966.352256][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7966.352256][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7966.352256][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.352256][ T254] netlink_unicast+0x449/0x710 [ 7966.352256][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.352256][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.352256][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.352256][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.352256][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.352256][ T254] [ 7966.354450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.354450][ T254] netdev_get_by_index+0x5e/0x80 [ 7966.354450][ T254] fib6_nh_init+0x3d8/0x1580 [ 7966.354450][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7966.354450][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7966.354450][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7966.354450][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7966.354450][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7966.354450][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7966.354450][ T254] addrconf_dad_begin+0x310/0x670 [ 7966.354450][ T254] addrconf_dad_work+0x10b/0xab0 [ 7966.354450][ T254] process_one_work+0x84d/0x18a0 [ 7966.354450][ T254] worker_thread+0x587/0xd30 [ 7966.354450][ T254] kthread+0x28a/0x350 [ 7966.354450][ T254] ret_from_fork+0x31/0x70 [ 7966.354450][ T254] ret_from_fork_asm+0x1a/0x30 [ 7966.354450][ T254] [ 7966.356594][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.356594][ T254] netdev_get_by_index+0x5e/0x80 [ 7966.356594][ T254] fib6_nh_init+0x3d8/0x1580 [ 7966.356594][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7966.356594][ T254] ip6_route_add+0x1c/0x140 [ 7966.356594][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7966.356594][ T254] inet6_addr_add+0x4f8/0xa40 [ 7966.356594][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7966.356594][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7966.356594][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.356594][ T254] netlink_unicast+0x449/0x710 [ 7966.356594][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.356594][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.356594][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.356594][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.356594][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.356594][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7966.356594][ T254] [ 7966.358832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.358832][ T254] netdev_get_by_index+0x5e/0x80 [ 7966.358832][ T254] fib6_nh_init+0x3d8/0x1580 [ 7966.358832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7966.358832][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7966.358832][ T254] ipv6_add_addr+0x411/0x2000 [ 7966.358832][ T254] inet6_addr_add+0x30e/0xa40 [ 7966.358832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7966.358832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7966.358832][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.358832][ T254] netlink_unicast+0x449/0x710 [ 7966.358832][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.358832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.358832][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.358832][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.358832][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.358832][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7966.358832][ T254] [ 7966.361076][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.361076][ T254] netdev_get_by_index+0x5e/0x80 [ 7966.361076][ T254] fib6_nh_init+0x3d8/0x1580 [ 7966.361076][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7966.361076][ T254] ip6_route_add+0x1c/0x140 [ 7966.361076][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7966.361076][ T254] addrconf_add_dev+0xe2/0x170 [ 7966.361076][ T254] inet6_addr_add+0x12f/0xa40 [ 7966.361076][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7966.361076][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7966.361076][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.361076][ T254] netlink_unicast+0x449/0x710 [ 7966.361076][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.361076][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.361076][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.361076][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.361076][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.361076][ T254] [ 7966.363270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.363270][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7966.363270][ T254] ipv6_find_idev+0x102/0x170 [ 7966.363270][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7966.363270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7966.363270][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.363270][ T254] netlink_unicast+0x449/0x710 [ 7966.363270][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.363270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.363270][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.363270][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.363270][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.363270][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7966.363270][ T254] [ 7966.364982][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7966.364982][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7966.364982][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7966.364982][ T254] ipv6_find_idev+0x102/0x170 [ 7966.364982][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7966.364982][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7966.364982][ T254] netlink_rcv_skb+0x130/0x360 [ 7966.364982][ T254] netlink_unicast+0x449/0x710 [ 7966.364982][ T254] netlink_sendmsg+0x723/0xbe0 [ 7966.364982][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7966.364982][ T254] ___sys_sendmsg+0xee/0x170 [ 7966.364982][ T254] __sys_sendmsg+0xcd/0x170 [ 7966.364982][ T254] do_syscall_64+0xc6/0x1e0 [ 7966.364982][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7966.364982][ T254] [ 7976.447840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7976.448320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.448320][ T254] dst_init+0x84/0x4a0 [ 7976.448320][ T254] dst_alloc+0x97/0x150 [ 7976.448320][ T254] ip6_dst_alloc+0x23/0x90 [ 7976.448320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7976.448320][ T254] ip6_pol_route+0x56f/0x840 [ 7976.448320][ T254] fib6_rule_lookup+0x334/0x630 [ 7976.448320][ T254] ip6_route_output_flags+0x259/0x480 [ 7976.448320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7976.448320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7976.448320][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.448320][ T254] netlink_unicast+0x449/0x710 [ 7976.448320][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.448320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.448320][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.448320][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.448320][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.448320][ T254] [ 7976.450550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.450550][ T254] netdev_get_by_index+0x5e/0x80 [ 7976.450550][ T254] fib6_nh_init+0x3d8/0x1580 [ 7976.450550][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7976.450550][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7976.450550][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7976.450550][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7976.450550][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7976.450550][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7976.450550][ T254] addrconf_dad_begin+0x310/0x670 [ 7976.450550][ T254] addrconf_dad_work+0x10b/0xab0 [ 7976.450550][ T254] process_one_work+0x84d/0x18a0 [ 7976.450550][ T254] worker_thread+0x587/0xd30 [ 7976.450550][ T254] kthread+0x28a/0x350 [ 7976.450550][ T254] ret_from_fork+0x31/0x70 [ 7976.450550][ T254] ret_from_fork_asm+0x1a/0x30 [ 7976.450550][ T254] [ 7976.452714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.452714][ T254] netdev_get_by_index+0x5e/0x80 [ 7976.452714][ T254] fib6_nh_init+0x3d8/0x1580 [ 7976.452714][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7976.452714][ T254] ip6_route_add+0x1c/0x140 [ 7976.452714][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7976.452714][ T254] inet6_addr_add+0x4f8/0xa40 [ 7976.452714][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7976.452714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7976.452714][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.452714][ T254] netlink_unicast+0x449/0x710 [ 7976.452714][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.452714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.452714][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.452714][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.452714][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.452714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7976.452714][ T254] [ 7976.454971][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.454971][ T254] netdev_get_by_index+0x5e/0x80 [ 7976.454971][ T254] fib6_nh_init+0x3d8/0x1580 [ 7976.454971][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7976.454971][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7976.454971][ T254] ipv6_add_addr+0x411/0x2000 [ 7976.454971][ T254] inet6_addr_add+0x30e/0xa40 [ 7976.454971][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7976.454971][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7976.454971][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.454971][ T254] netlink_unicast+0x449/0x710 [ 7976.454971][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.454971][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.454971][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.454971][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.454971][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.454971][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7976.454971][ T254] [ 7976.457231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.457231][ T254] netdev_get_by_index+0x5e/0x80 [ 7976.457231][ T254] fib6_nh_init+0x3d8/0x1580 [ 7976.457231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7976.457231][ T254] ip6_route_add+0x1c/0x140 [ 7976.457231][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7976.457231][ T254] addrconf_add_dev+0xe2/0x170 [ 7976.457231][ T254] inet6_addr_add+0x12f/0xa40 [ 7976.457231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7976.457231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7976.457231][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.457231][ T254] netlink_unicast+0x449/0x710 [ 7976.457231][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.457231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.457231][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.457231][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.457231][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.457231][ T254] [ 7976.459462][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.459462][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7976.459462][ T254] ipv6_find_idev+0x102/0x170 [ 7976.459462][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7976.459462][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7976.459462][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.459462][ T254] netlink_unicast+0x449/0x710 [ 7976.459462][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.459462][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.459462][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.459462][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.459462][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.459462][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7976.459462][ T254] [ 7976.461205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7976.461205][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7976.461205][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7976.461205][ T254] ipv6_find_idev+0x102/0x170 [ 7976.461205][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7976.461205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7976.461205][ T254] netlink_rcv_skb+0x130/0x360 [ 7976.461205][ T254] netlink_unicast+0x449/0x710 [ 7976.461205][ T254] netlink_sendmsg+0x723/0xbe0 [ 7976.461205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7976.461205][ T254] ___sys_sendmsg+0xee/0x170 [ 7976.461205][ T254] __sys_sendmsg+0xcd/0x170 [ 7976.461205][ T254] do_syscall_64+0xc6/0x1e0 [ 7976.461205][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7976.461205][ T254] [ 7986.703834][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7986.704345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.704345][ T254] dst_init+0x84/0x4a0 [ 7986.704345][ T254] dst_alloc+0x97/0x150 [ 7986.704345][ T254] ip6_dst_alloc+0x23/0x90 [ 7986.704345][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7986.704345][ T254] ip6_pol_route+0x56f/0x840 [ 7986.704345][ T254] fib6_rule_lookup+0x334/0x630 [ 7986.704345][ T254] ip6_route_output_flags+0x259/0x480 [ 7986.704345][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7986.704345][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7986.704345][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.704345][ T254] netlink_unicast+0x449/0x710 [ 7986.704345][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.704345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.704345][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.704345][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.704345][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.704345][ T254] [ 7986.706559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.706559][ T254] netdev_get_by_index+0x5e/0x80 [ 7986.706559][ T254] fib6_nh_init+0x3d8/0x1580 [ 7986.706559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7986.706559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7986.706559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7986.706559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7986.706559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7986.706559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7986.706559][ T254] addrconf_dad_begin+0x310/0x670 [ 7986.706559][ T254] addrconf_dad_work+0x10b/0xab0 [ 7986.706559][ T254] process_one_work+0x84d/0x18a0 [ 7986.706559][ T254] worker_thread+0x587/0xd30 [ 7986.706559][ T254] kthread+0x28a/0x350 [ 7986.706559][ T254] ret_from_fork+0x31/0x70 [ 7986.706559][ T254] ret_from_fork_asm+0x1a/0x30 [ 7986.706559][ T254] [ 7986.708722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.708722][ T254] netdev_get_by_index+0x5e/0x80 [ 7986.708722][ T254] fib6_nh_init+0x3d8/0x1580 [ 7986.708722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7986.708722][ T254] ip6_route_add+0x1c/0x140 [ 7986.708722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7986.708722][ T254] inet6_addr_add+0x4f8/0xa40 [ 7986.708722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7986.708722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7986.708722][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.708722][ T254] netlink_unicast+0x449/0x710 [ 7986.708722][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.708722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.708722][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.708722][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.708722][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.708722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7986.708722][ T254] [ 7986.710980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.710980][ T254] netdev_get_by_index+0x5e/0x80 [ 7986.710980][ T254] fib6_nh_init+0x3d8/0x1580 [ 7986.710980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7986.710980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7986.710980][ T254] ipv6_add_addr+0x411/0x2000 [ 7986.710980][ T254] inet6_addr_add+0x30e/0xa40 [ 7986.710980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7986.710980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7986.710980][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.710980][ T254] netlink_unicast+0x449/0x710 [ 7986.710980][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.710980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.710980][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.710980][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.710980][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.710980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7986.710980][ T254] [ 7986.713230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.713230][ T254] netdev_get_by_index+0x5e/0x80 [ 7986.713230][ T254] fib6_nh_init+0x3d8/0x1580 [ 7986.713230][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7986.713230][ T254] ip6_route_add+0x1c/0x140 [ 7986.713230][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7986.713230][ T254] addrconf_add_dev+0xe2/0x170 [ 7986.713230][ T254] inet6_addr_add+0x12f/0xa40 [ 7986.713230][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7986.713230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7986.713230][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.713230][ T254] netlink_unicast+0x449/0x710 [ 7986.713230][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.713230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.713230][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.713230][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.713230][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.713230][ T254] [ 7986.715444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.715444][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7986.715444][ T254] ipv6_find_idev+0x102/0x170 [ 7986.715444][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7986.715444][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7986.715444][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.715444][ T254] netlink_unicast+0x449/0x710 [ 7986.715444][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.715444][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.715444][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.715444][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.715444][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.715444][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7986.715444][ T254] [ 7986.717181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7986.717181][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7986.717181][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7986.717181][ T254] ipv6_find_idev+0x102/0x170 [ 7986.717181][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7986.717181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7986.717181][ T254] netlink_rcv_skb+0x130/0x360 [ 7986.717181][ T254] netlink_unicast+0x449/0x710 [ 7986.717181][ T254] netlink_sendmsg+0x723/0xbe0 [ 7986.717181][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7986.717181][ T254] ___sys_sendmsg+0xee/0x170 [ 7986.717181][ T254] __sys_sendmsg+0xcd/0x170 [ 7986.717181][ T254] do_syscall_64+0xc6/0x1e0 [ 7986.717181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7986.717181][ T254] [ 7996.863874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 7996.864347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.864347][ T254] dst_init+0x84/0x4a0 [ 7996.864347][ T254] dst_alloc+0x97/0x150 [ 7996.864347][ T254] ip6_dst_alloc+0x23/0x90 [ 7996.864347][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 7996.864347][ T254] ip6_pol_route+0x56f/0x840 [ 7996.864347][ T254] fib6_rule_lookup+0x334/0x630 [ 7996.864347][ T254] ip6_route_output_flags+0x259/0x480 [ 7996.864347][ T254] inet6_rtm_getroute+0x980/0xf70 [ 7996.864347][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 7996.864347][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.864347][ T254] netlink_unicast+0x449/0x710 [ 7996.864347][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.864347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.864347][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.864347][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.864347][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.864347][ T254] [ 7996.866536][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.866536][ T254] netdev_get_by_index+0x5e/0x80 [ 7996.866536][ T254] fib6_nh_init+0x3d8/0x1580 [ 7996.866536][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7996.866536][ T254] addrconf_f6i_alloc+0x265/0x560 [ 7996.866536][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 7996.866536][ T254] addrconf_join_anycast+0x1c0/0x220 [ 7996.866536][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 7996.866536][ T254] addrconf_dad_completed+0x12b/0xe20 [ 7996.866536][ T254] addrconf_dad_begin+0x310/0x670 [ 7996.866536][ T254] addrconf_dad_work+0x10b/0xab0 [ 7996.866536][ T254] process_one_work+0x84d/0x18a0 [ 7996.866536][ T254] worker_thread+0x587/0xd30 [ 7996.866536][ T254] kthread+0x28a/0x350 [ 7996.866536][ T254] ret_from_fork+0x31/0x70 [ 7996.866536][ T254] ret_from_fork_asm+0x1a/0x30 [ 7996.866536][ T254] [ 7996.868683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.868683][ T254] netdev_get_by_index+0x5e/0x80 [ 7996.868683][ T254] fib6_nh_init+0x3d8/0x1580 [ 7996.868683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7996.868683][ T254] ip6_route_add+0x1c/0x140 [ 7996.868683][ T254] addrconf_prefix_route+0x2a6/0x430 [ 7996.868683][ T254] inet6_addr_add+0x4f8/0xa40 [ 7996.868683][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7996.868683][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7996.868683][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.868683][ T254] netlink_unicast+0x449/0x710 [ 7996.868683][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.868683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.868683][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.868683][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.868683][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.868683][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7996.868683][ T254] [ 7996.870924][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.870924][ T254] netdev_get_by_index+0x5e/0x80 [ 7996.870924][ T254] fib6_nh_init+0x3d8/0x1580 [ 7996.870924][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7996.870924][ T254] addrconf_f6i_alloc+0x315/0x560 [ 7996.870924][ T254] ipv6_add_addr+0x411/0x2000 [ 7996.870924][ T254] inet6_addr_add+0x30e/0xa40 [ 7996.870924][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7996.870924][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7996.870924][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.870924][ T254] netlink_unicast+0x449/0x710 [ 7996.870924][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.870924][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.870924][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.870924][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.870924][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.870924][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7996.870924][ T254] [ 7996.873164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.873164][ T254] netdev_get_by_index+0x5e/0x80 [ 7996.873164][ T254] fib6_nh_init+0x3d8/0x1580 [ 7996.873164][ T254] ip6_route_info_create+0xf18/0x17d0 [ 7996.873164][ T254] ip6_route_add+0x1c/0x140 [ 7996.873164][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 7996.873164][ T254] addrconf_add_dev+0xe2/0x170 [ 7996.873164][ T254] inet6_addr_add+0x12f/0xa40 [ 7996.873164][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 7996.873164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7996.873164][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.873164][ T254] netlink_unicast+0x449/0x710 [ 7996.873164][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.873164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.873164][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.873164][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.873164][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.873164][ T254] [ 7996.875369][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.875369][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 7996.875369][ T254] ipv6_find_idev+0x102/0x170 [ 7996.875369][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7996.875369][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7996.875369][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.875369][ T254] netlink_unicast+0x449/0x710 [ 7996.875369][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.875369][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.875369][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.875369][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.875369][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.875369][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7996.875369][ T254] [ 7996.877099][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 7996.877099][ T254] neigh_parms_alloc+0x1e5/0x510 [ 7996.877099][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 7996.877099][ T254] ipv6_find_idev+0x102/0x170 [ 7996.877099][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 7996.877099][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 7996.877099][ T254] netlink_rcv_skb+0x130/0x360 [ 7996.877099][ T254] netlink_unicast+0x449/0x710 [ 7996.877099][ T254] netlink_sendmsg+0x723/0xbe0 [ 7996.877099][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 7996.877099][ T254] ___sys_sendmsg+0xee/0x170 [ 7996.877099][ T254] __sys_sendmsg+0xcd/0x170 [ 7996.877099][ T254] do_syscall_64+0xc6/0x1e0 [ 7996.877099][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 7996.877099][ T254] [ 8007.119847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8007.120334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.120334][ T254] dst_init+0x84/0x4a0 [ 8007.120334][ T254] dst_alloc+0x97/0x150 [ 8007.120334][ T254] ip6_dst_alloc+0x23/0x90 [ 8007.120334][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8007.120334][ T254] ip6_pol_route+0x56f/0x840 [ 8007.120334][ T254] fib6_rule_lookup+0x334/0x630 [ 8007.120334][ T254] ip6_route_output_flags+0x259/0x480 [ 8007.120334][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8007.120334][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8007.120334][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.120334][ T254] netlink_unicast+0x449/0x710 [ 8007.120334][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.120334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.120334][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.120334][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.120334][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.120334][ T254] [ 8007.122533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.122533][ T254] netdev_get_by_index+0x5e/0x80 [ 8007.122533][ T254] fib6_nh_init+0x3d8/0x1580 [ 8007.122533][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8007.122533][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8007.122533][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8007.122533][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8007.122533][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8007.122533][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8007.122533][ T254] addrconf_dad_begin+0x310/0x670 [ 8007.122533][ T254] addrconf_dad_work+0x10b/0xab0 [ 8007.122533][ T254] process_one_work+0x84d/0x18a0 [ 8007.122533][ T254] worker_thread+0x587/0xd30 [ 8007.122533][ T254] kthread+0x28a/0x350 [ 8007.122533][ T254] ret_from_fork+0x31/0x70 [ 8007.122533][ T254] ret_from_fork_asm+0x1a/0x30 [ 8007.122533][ T254] [ 8007.124673][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.124673][ T254] netdev_get_by_index+0x5e/0x80 [ 8007.124673][ T254] fib6_nh_init+0x3d8/0x1580 [ 8007.124673][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8007.124673][ T254] ip6_route_add+0x1c/0x140 [ 8007.124673][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8007.124673][ T254] inet6_addr_add+0x4f8/0xa40 [ 8007.124673][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8007.124673][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8007.124673][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.124673][ T254] netlink_unicast+0x449/0x710 [ 8007.124673][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.124673][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.124673][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.124673][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.124673][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.124673][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8007.124673][ T254] [ 8007.126911][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.126911][ T254] netdev_get_by_index+0x5e/0x80 [ 8007.126911][ T254] fib6_nh_init+0x3d8/0x1580 [ 8007.126911][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8007.126911][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8007.126911][ T254] ipv6_add_addr+0x411/0x2000 [ 8007.126911][ T254] inet6_addr_add+0x30e/0xa40 [ 8007.126911][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8007.126911][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8007.126911][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.126911][ T254] netlink_unicast+0x449/0x710 [ 8007.126911][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.126911][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.126911][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.126911][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.126911][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.126911][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8007.126911][ T254] [ 8007.129159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.129159][ T254] netdev_get_by_index+0x5e/0x80 [ 8007.129159][ T254] fib6_nh_init+0x3d8/0x1580 [ 8007.129159][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8007.129159][ T254] ip6_route_add+0x1c/0x140 [ 8007.129159][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8007.129159][ T254] addrconf_add_dev+0xe2/0x170 [ 8007.129159][ T254] inet6_addr_add+0x12f/0xa40 [ 8007.129159][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8007.129159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8007.129159][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.129159][ T254] netlink_unicast+0x449/0x710 [ 8007.129159][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.129159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.129159][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.129159][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.129159][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.129159][ T254] [ 8007.131364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.131364][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8007.131364][ T254] ipv6_find_idev+0x102/0x170 [ 8007.131364][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8007.131364][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8007.131364][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.131364][ T254] netlink_unicast+0x449/0x710 [ 8007.131364][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.131364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.131364][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.131364][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.131364][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.131364][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8007.131364][ T254] [ 8007.133088][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8007.133088][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8007.133088][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8007.133088][ T254] ipv6_find_idev+0x102/0x170 [ 8007.133088][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8007.133088][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8007.133088][ T254] netlink_rcv_skb+0x130/0x360 [ 8007.133088][ T254] netlink_unicast+0x449/0x710 [ 8007.133088][ T254] netlink_sendmsg+0x723/0xbe0 [ 8007.133088][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8007.133088][ T254] ___sys_sendmsg+0xee/0x170 [ 8007.133088][ T254] __sys_sendmsg+0xcd/0x170 [ 8007.133088][ T254] do_syscall_64+0xc6/0x1e0 [ 8007.133088][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8007.133088][ T254] [ 8017.167932][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8017.168632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.168632][ T254] dst_init+0x84/0x4a0 [ 8017.168632][ T254] dst_alloc+0x97/0x150 [ 8017.168632][ T254] ip6_dst_alloc+0x23/0x90 [ 8017.168632][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8017.168632][ T254] ip6_pol_route+0x56f/0x840 [ 8017.168632][ T254] fib6_rule_lookup+0x334/0x630 [ 8017.168632][ T254] ip6_route_output_flags+0x259/0x480 [ 8017.168632][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8017.168632][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8017.168632][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.168632][ T254] netlink_unicast+0x449/0x710 [ 8017.168632][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.168632][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.168632][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.168632][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.168632][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.168632][ T254] [ 8017.170909][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.170909][ T254] netdev_get_by_index+0x5e/0x80 [ 8017.170909][ T254] fib6_nh_init+0x3d8/0x1580 [ 8017.170909][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8017.170909][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8017.170909][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8017.170909][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8017.170909][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8017.170909][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8017.170909][ T254] addrconf_dad_begin+0x310/0x670 [ 8017.170909][ T254] addrconf_dad_work+0x10b/0xab0 [ 8017.170909][ T254] process_one_work+0x84d/0x18a0 [ 8017.170909][ T254] worker_thread+0x587/0xd30 [ 8017.170909][ T254] kthread+0x28a/0x350 [ 8017.170909][ T254] ret_from_fork+0x31/0x70 [ 8017.170909][ T254] ret_from_fork_asm+0x1a/0x30 [ 8017.170909][ T254] [ 8017.173084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.173084][ T254] netdev_get_by_index+0x5e/0x80 [ 8017.173084][ T254] fib6_nh_init+0x3d8/0x1580 [ 8017.173084][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8017.173084][ T254] ip6_route_add+0x1c/0x140 [ 8017.173084][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8017.173084][ T254] inet6_addr_add+0x4f8/0xa40 [ 8017.173084][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8017.173084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8017.173084][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.173084][ T254] netlink_unicast+0x449/0x710 [ 8017.173084][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.173084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.173084][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.173084][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.173084][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.173084][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8017.173084][ T254] [ 8017.175332][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.175332][ T254] netdev_get_by_index+0x5e/0x80 [ 8017.175332][ T254] fib6_nh_init+0x3d8/0x1580 [ 8017.175332][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8017.175332][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8017.175332][ T254] ipv6_add_addr+0x411/0x2000 [ 8017.175332][ T254] inet6_addr_add+0x30e/0xa40 [ 8017.175332][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8017.175332][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8017.175332][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.175332][ T254] netlink_unicast+0x449/0x710 [ 8017.175332][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.175332][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.175332][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.175332][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.175332][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.175332][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8017.175332][ T254] [ 8017.177583][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.177583][ T254] netdev_get_by_index+0x5e/0x80 [ 8017.177583][ T254] fib6_nh_init+0x3d8/0x1580 [ 8017.177583][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8017.177583][ T254] ip6_route_add+0x1c/0x140 [ 8017.177583][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8017.177583][ T254] addrconf_add_dev+0xe2/0x170 [ 8017.177583][ T254] inet6_addr_add+0x12f/0xa40 [ 8017.177583][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8017.177583][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8017.177583][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.177583][ T254] netlink_unicast+0x449/0x710 [ 8017.177583][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.177583][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.177583][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.177583][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.177583][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.177583][ T254] [ 8017.179782][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.179782][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8017.179782][ T254] ipv6_find_idev+0x102/0x170 [ 8017.179782][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8017.179782][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8017.179782][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.179782][ T254] netlink_unicast+0x449/0x710 [ 8017.179782][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.179782][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.179782][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.179782][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.179782][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.179782][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8017.179782][ T254] [ 8017.181529][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8017.181529][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8017.181529][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8017.181529][ T254] ipv6_find_idev+0x102/0x170 [ 8017.181529][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8017.181529][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8017.181529][ T254] netlink_rcv_skb+0x130/0x360 [ 8017.181529][ T254] netlink_unicast+0x449/0x710 [ 8017.181529][ T254] netlink_sendmsg+0x723/0xbe0 [ 8017.181529][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8017.181529][ T254] ___sys_sendmsg+0xee/0x170 [ 8017.181529][ T254] __sys_sendmsg+0xcd/0x170 [ 8017.181529][ T254] do_syscall_64+0xc6/0x1e0 [ 8017.181529][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8017.181529][ T254] [ 8027.431918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8027.432709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.432709][ T254] dst_init+0x84/0x4a0 [ 8027.432709][ T254] dst_alloc+0x97/0x150 [ 8027.432709][ T254] ip6_dst_alloc+0x23/0x90 [ 8027.432709][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8027.432709][ T254] ip6_pol_route+0x56f/0x840 [ 8027.432709][ T254] fib6_rule_lookup+0x334/0x630 [ 8027.432709][ T254] ip6_route_output_flags+0x259/0x480 [ 8027.432709][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8027.432709][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8027.432709][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.432709][ T254] netlink_unicast+0x449/0x710 [ 8027.432709][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.432709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.432709][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.432709][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.432709][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.432709][ T254] [ 8027.434975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.434975][ T254] netdev_get_by_index+0x5e/0x80 [ 8027.434975][ T254] fib6_nh_init+0x3d8/0x1580 [ 8027.434975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8027.434975][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8027.434975][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8027.434975][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8027.434975][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8027.434975][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8027.434975][ T254] addrconf_dad_begin+0x310/0x670 [ 8027.434975][ T254] addrconf_dad_work+0x10b/0xab0 [ 8027.434975][ T254] process_one_work+0x84d/0x18a0 [ 8027.434975][ T254] worker_thread+0x587/0xd30 [ 8027.434975][ T254] kthread+0x28a/0x350 [ 8027.434975][ T254] ret_from_fork+0x31/0x70 [ 8027.434975][ T254] ret_from_fork_asm+0x1a/0x30 [ 8027.434975][ T254] [ 8027.437154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.437154][ T254] netdev_get_by_index+0x5e/0x80 [ 8027.437154][ T254] fib6_nh_init+0x3d8/0x1580 [ 8027.437154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8027.437154][ T254] ip6_route_add+0x1c/0x140 [ 8027.437154][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8027.437154][ T254] inet6_addr_add+0x4f8/0xa40 [ 8027.437154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8027.437154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8027.437154][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.437154][ T254] netlink_unicast+0x449/0x710 [ 8027.437154][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.437154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.437154][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.437154][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.437154][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.437154][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8027.437154][ T254] [ 8027.439418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.439418][ T254] netdev_get_by_index+0x5e/0x80 [ 8027.439418][ T254] fib6_nh_init+0x3d8/0x1580 [ 8027.439418][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8027.439418][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8027.439418][ T254] ipv6_add_addr+0x411/0x2000 [ 8027.439418][ T254] inet6_addr_add+0x30e/0xa40 [ 8027.439418][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8027.439418][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8027.439418][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.439418][ T254] netlink_unicast+0x449/0x710 [ 8027.439418][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.439418][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.439418][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.439418][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.439418][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.439418][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8027.439418][ T254] [ 8027.441672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.441672][ T254] netdev_get_by_index+0x5e/0x80 [ 8027.441672][ T254] fib6_nh_init+0x3d8/0x1580 [ 8027.441672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8027.441672][ T254] ip6_route_add+0x1c/0x140 [ 8027.441672][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8027.441672][ T254] addrconf_add_dev+0xe2/0x170 [ 8027.441672][ T254] inet6_addr_add+0x12f/0xa40 [ 8027.441672][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8027.441672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8027.441672][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.441672][ T254] netlink_unicast+0x449/0x710 [ 8027.441672][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.441672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.441672][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.441672][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.441672][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.441672][ T254] [ 8027.443871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.443871][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8027.443871][ T254] ipv6_find_idev+0x102/0x170 [ 8027.443871][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8027.443871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8027.443871][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.443871][ T254] netlink_unicast+0x449/0x710 [ 8027.443871][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.443871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.443871][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.443871][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.443871][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.443871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8027.443871][ T254] [ 8027.445591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8027.445591][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8027.445591][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8027.445591][ T254] ipv6_find_idev+0x102/0x170 [ 8027.445591][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8027.445591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8027.445591][ T254] netlink_rcv_skb+0x130/0x360 [ 8027.445591][ T254] netlink_unicast+0x449/0x710 [ 8027.445591][ T254] netlink_sendmsg+0x723/0xbe0 [ 8027.445591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8027.445591][ T254] ___sys_sendmsg+0xee/0x170 [ 8027.445591][ T254] __sys_sendmsg+0xcd/0x170 [ 8027.445591][ T254] do_syscall_64+0xc6/0x1e0 [ 8027.445591][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8027.445591][ T254] [ 8037.695893][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8037.696367][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.696367][ T254] dst_init+0x84/0x4a0 [ 8037.696367][ T254] dst_alloc+0x97/0x150 [ 8037.696367][ T254] ip6_dst_alloc+0x23/0x90 [ 8037.696367][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8037.696367][ T254] ip6_pol_route+0x56f/0x840 [ 8037.696367][ T254] fib6_rule_lookup+0x334/0x630 [ 8037.696367][ T254] ip6_route_output_flags+0x259/0x480 [ 8037.696367][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8037.696367][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8037.696367][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.696367][ T254] netlink_unicast+0x449/0x710 [ 8037.696367][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.696367][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.696367][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.696367][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.696367][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.696367][ T254] [ 8037.698738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.698738][ T254] netdev_get_by_index+0x5e/0x80 [ 8037.698738][ T254] fib6_nh_init+0x3d8/0x1580 [ 8037.698738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8037.698738][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8037.698738][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8037.698738][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8037.698738][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8037.698738][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8037.698738][ T254] addrconf_dad_begin+0x310/0x670 [ 8037.698738][ T254] addrconf_dad_work+0x10b/0xab0 [ 8037.698738][ T254] process_one_work+0x84d/0x18a0 [ 8037.698738][ T254] worker_thread+0x587/0xd30 [ 8037.698738][ T254] kthread+0x28a/0x350 [ 8037.698738][ T254] ret_from_fork+0x31/0x70 [ 8037.698738][ T254] ret_from_fork_asm+0x1a/0x30 [ 8037.698738][ T254] [ 8037.701095][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.701095][ T254] netdev_get_by_index+0x5e/0x80 [ 8037.701095][ T254] fib6_nh_init+0x3d8/0x1580 [ 8037.701095][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8037.701095][ T254] ip6_route_add+0x1c/0x140 [ 8037.701095][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8037.701095][ T254] inet6_addr_add+0x4f8/0xa40 [ 8037.701095][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8037.701095][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8037.701095][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.701095][ T254] netlink_unicast+0x449/0x710 [ 8037.701095][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.701095][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.701095][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.701095][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.701095][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.701095][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8037.701095][ T254] [ 8037.703575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.703575][ T254] netdev_get_by_index+0x5e/0x80 [ 8037.703575][ T254] fib6_nh_init+0x3d8/0x1580 [ 8037.703575][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8037.703575][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8037.703575][ T254] ipv6_add_addr+0x411/0x2000 [ 8037.703575][ T254] inet6_addr_add+0x30e/0xa40 [ 8037.703575][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8037.703575][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8037.703575][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.703575][ T254] netlink_unicast+0x449/0x710 [ 8037.703575][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.703575][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.703575][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.703575][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.703575][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.703575][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8037.703575][ T254] [ 8037.706071][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.706071][ T254] netdev_get_by_index+0x5e/0x80 [ 8037.706071][ T254] fib6_nh_init+0x3d8/0x1580 [ 8037.706071][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8037.706071][ T254] ip6_route_add+0x1c/0x140 [ 8037.706071][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8037.706071][ T254] addrconf_add_dev+0xe2/0x170 [ 8037.706071][ T254] inet6_addr_add+0x12f/0xa40 [ 8037.706071][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8037.706071][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8037.706071][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.706071][ T254] netlink_unicast+0x449/0x710 [ 8037.706071][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.706071][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.706071][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.706071][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.706071][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.706071][ T254] [ 8037.708543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.708543][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8037.708543][ T254] ipv6_find_idev+0x102/0x170 [ 8037.708543][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8037.708543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8037.708543][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.708543][ T254] netlink_unicast+0x449/0x710 [ 8037.708543][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.708543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.708543][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.708543][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.708543][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.708543][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8037.708543][ T254] [ 8037.710457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8037.710457][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8037.710457][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8037.710457][ T254] ipv6_find_idev+0x102/0x170 [ 8037.710457][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8037.710457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8037.710457][ T254] netlink_rcv_skb+0x130/0x360 [ 8037.710457][ T254] netlink_unicast+0x449/0x710 [ 8037.710457][ T254] netlink_sendmsg+0x723/0xbe0 [ 8037.710457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8037.710457][ T254] ___sys_sendmsg+0xee/0x170 [ 8037.710457][ T254] __sys_sendmsg+0xcd/0x170 [ 8037.710457][ T254] do_syscall_64+0xc6/0x1e0 [ 8037.710457][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8037.710457][ T254] [ 8047.775856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8047.776324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.776324][ T254] dst_init+0x84/0x4a0 [ 8047.776324][ T254] dst_alloc+0x97/0x150 [ 8047.776324][ T254] ip6_dst_alloc+0x23/0x90 [ 8047.776324][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8047.776324][ T254] ip6_pol_route+0x56f/0x840 [ 8047.776324][ T254] fib6_rule_lookup+0x334/0x630 [ 8047.776324][ T254] ip6_route_output_flags+0x259/0x480 [ 8047.776324][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8047.776324][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8047.776324][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.776324][ T254] netlink_unicast+0x449/0x710 [ 8047.776324][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.776324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.776324][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.776324][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.776324][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.776324][ T254] [ 8047.778521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.778521][ T254] netdev_get_by_index+0x5e/0x80 [ 8047.778521][ T254] fib6_nh_init+0x3d8/0x1580 [ 8047.778521][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8047.778521][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8047.778521][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8047.778521][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8047.778521][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8047.778521][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8047.778521][ T254] addrconf_dad_begin+0x310/0x670 [ 8047.778521][ T254] addrconf_dad_work+0x10b/0xab0 [ 8047.778521][ T254] process_one_work+0x84d/0x18a0 [ 8047.778521][ T254] worker_thread+0x587/0xd30 [ 8047.778521][ T254] kthread+0x28a/0x350 [ 8047.778521][ T254] ret_from_fork+0x31/0x70 [ 8047.778521][ T254] ret_from_fork_asm+0x1a/0x30 [ 8047.778521][ T254] [ 8047.780676][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.780676][ T254] netdev_get_by_index+0x5e/0x80 [ 8047.780676][ T254] fib6_nh_init+0x3d8/0x1580 [ 8047.780676][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8047.780676][ T254] ip6_route_add+0x1c/0x140 [ 8047.780676][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8047.780676][ T254] inet6_addr_add+0x4f8/0xa40 [ 8047.780676][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8047.780676][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8047.780676][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.780676][ T254] netlink_unicast+0x449/0x710 [ 8047.780676][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.780676][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.780676][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.780676][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.780676][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.780676][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8047.780676][ T254] [ 8047.782915][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.782915][ T254] netdev_get_by_index+0x5e/0x80 [ 8047.782915][ T254] fib6_nh_init+0x3d8/0x1580 [ 8047.782915][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8047.782915][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8047.782915][ T254] ipv6_add_addr+0x411/0x2000 [ 8047.782915][ T254] inet6_addr_add+0x30e/0xa40 [ 8047.782915][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8047.782915][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8047.782915][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.782915][ T254] netlink_unicast+0x449/0x710 [ 8047.782915][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.782915][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.782915][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.782915][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.782915][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.782915][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8047.782915][ T254] [ 8047.785154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.785154][ T254] netdev_get_by_index+0x5e/0x80 [ 8047.785154][ T254] fib6_nh_init+0x3d8/0x1580 [ 8047.785154][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8047.785154][ T254] ip6_route_add+0x1c/0x140 [ 8047.785154][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8047.785154][ T254] addrconf_add_dev+0xe2/0x170 [ 8047.785154][ T254] inet6_addr_add+0x12f/0xa40 [ 8047.785154][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8047.785154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8047.785154][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.785154][ T254] netlink_unicast+0x449/0x710 [ 8047.785154][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.785154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.785154][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.785154][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.785154][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.785154][ T254] [ 8047.787350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.787350][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8047.787350][ T254] ipv6_find_idev+0x102/0x170 [ 8047.787350][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8047.787350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8047.787350][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.787350][ T254] netlink_unicast+0x449/0x710 [ 8047.787350][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.787350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.787350][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.787350][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.787350][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.787350][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8047.787350][ T254] [ 8047.789081][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8047.789081][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8047.789081][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8047.789081][ T254] ipv6_find_idev+0x102/0x170 [ 8047.789081][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8047.789081][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8047.789081][ T254] netlink_rcv_skb+0x130/0x360 [ 8047.789081][ T254] netlink_unicast+0x449/0x710 [ 8047.789081][ T254] netlink_sendmsg+0x723/0xbe0 [ 8047.789081][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8047.789081][ T254] ___sys_sendmsg+0xee/0x170 [ 8047.789081][ T254] __sys_sendmsg+0xcd/0x170 [ 8047.789081][ T254] do_syscall_64+0xc6/0x1e0 [ 8047.789081][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8047.789081][ T254] [ 8058.031839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8058.032259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.032259][ T254] dst_init+0x84/0x4a0 [ 8058.032259][ T254] dst_alloc+0x97/0x150 [ 8058.032259][ T254] ip6_dst_alloc+0x23/0x90 [ 8058.032259][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8058.032259][ T254] ip6_pol_route+0x56f/0x840 [ 8058.032259][ T254] fib6_rule_lookup+0x334/0x630 [ 8058.032259][ T254] ip6_route_output_flags+0x259/0x480 [ 8058.032259][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8058.032259][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8058.032259][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.032259][ T254] netlink_unicast+0x449/0x710 [ 8058.032259][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.032259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.032259][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.032259][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.032259][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.032259][ T254] [ 8058.034490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.034490][ T254] netdev_get_by_index+0x5e/0x80 [ 8058.034490][ T254] fib6_nh_init+0x3d8/0x1580 [ 8058.034490][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8058.034490][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8058.034490][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8058.034490][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8058.034490][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8058.034490][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8058.034490][ T254] addrconf_dad_begin+0x310/0x670 [ 8058.034490][ T254] addrconf_dad_work+0x10b/0xab0 [ 8058.034490][ T254] process_one_work+0x84d/0x18a0 [ 8058.034490][ T254] worker_thread+0x587/0xd30 [ 8058.034490][ T254] kthread+0x28a/0x350 [ 8058.034490][ T254] ret_from_fork+0x31/0x70 [ 8058.034490][ T254] ret_from_fork_asm+0x1a/0x30 [ 8058.034490][ T254] [ 8058.036678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.036678][ T254] netdev_get_by_index+0x5e/0x80 [ 8058.036678][ T254] fib6_nh_init+0x3d8/0x1580 [ 8058.036678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8058.036678][ T254] ip6_route_add+0x1c/0x140 [ 8058.036678][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8058.036678][ T254] inet6_addr_add+0x4f8/0xa40 [ 8058.036678][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8058.036678][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8058.036678][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.036678][ T254] netlink_unicast+0x449/0x710 [ 8058.036678][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.036678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.036678][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.036678][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.036678][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.036678][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8058.036678][ T254] [ 8058.039002][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.039002][ T254] netdev_get_by_index+0x5e/0x80 [ 8058.039002][ T254] fib6_nh_init+0x3d8/0x1580 [ 8058.039002][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8058.039002][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8058.039002][ T254] ipv6_add_addr+0x411/0x2000 [ 8058.039002][ T254] inet6_addr_add+0x30e/0xa40 [ 8058.039002][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8058.039002][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8058.039002][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.039002][ T254] netlink_unicast+0x449/0x710 [ 8058.039002][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.039002][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.039002][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.039002][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.039002][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.039002][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8058.039002][ T254] [ 8058.041303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.041303][ T254] netdev_get_by_index+0x5e/0x80 [ 8058.041303][ T254] fib6_nh_init+0x3d8/0x1580 [ 8058.041303][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8058.041303][ T254] ip6_route_add+0x1c/0x140 [ 8058.041303][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8058.041303][ T254] addrconf_add_dev+0xe2/0x170 [ 8058.041303][ T254] inet6_addr_add+0x12f/0xa40 [ 8058.041303][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8058.041303][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8058.041303][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.041303][ T254] netlink_unicast+0x449/0x710 [ 8058.041303][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.041303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.041303][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.041303][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.041303][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.041303][ T254] [ 8058.043537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.043537][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8058.043537][ T254] ipv6_find_idev+0x102/0x170 [ 8058.043537][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8058.043537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8058.043537][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.043537][ T254] netlink_unicast+0x449/0x710 [ 8058.043537][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.043537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.043537][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.043537][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.043537][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.043537][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8058.043537][ T254] [ 8058.045277][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8058.045277][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8058.045277][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8058.045277][ T254] ipv6_find_idev+0x102/0x170 [ 8058.045277][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8058.045277][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8058.045277][ T254] netlink_rcv_skb+0x130/0x360 [ 8058.045277][ T254] netlink_unicast+0x449/0x710 [ 8058.045277][ T254] netlink_sendmsg+0x723/0xbe0 [ 8058.045277][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8058.045277][ T254] ___sys_sendmsg+0xee/0x170 [ 8058.045277][ T254] __sys_sendmsg+0xcd/0x170 [ 8058.045277][ T254] do_syscall_64+0xc6/0x1e0 [ 8058.045277][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8058.045277][ T254] [ 8068.287869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8068.288326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.288326][ T254] dst_init+0x84/0x4a0 [ 8068.288326][ T254] dst_alloc+0x97/0x150 [ 8068.288326][ T254] ip6_dst_alloc+0x23/0x90 [ 8068.288326][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8068.288326][ T254] ip6_pol_route+0x56f/0x840 [ 8068.288326][ T254] fib6_rule_lookup+0x334/0x630 [ 8068.288326][ T254] ip6_route_output_flags+0x259/0x480 [ 8068.288326][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8068.288326][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8068.288326][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.288326][ T254] netlink_unicast+0x449/0x710 [ 8068.288326][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.288326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.288326][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.288326][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.288326][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.288326][ T254] [ 8068.290688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.290688][ T254] netdev_get_by_index+0x5e/0x80 [ 8068.290688][ T254] fib6_nh_init+0x3d8/0x1580 [ 8068.290688][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8068.290688][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8068.290688][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8068.290688][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8068.290688][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8068.290688][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8068.290688][ T254] addrconf_dad_begin+0x310/0x670 [ 8068.290688][ T254] addrconf_dad_work+0x10b/0xab0 [ 8068.290688][ T254] process_one_work+0x84d/0x18a0 [ 8068.290688][ T254] worker_thread+0x587/0xd30 [ 8068.290688][ T254] kthread+0x28a/0x350 [ 8068.290688][ T254] ret_from_fork+0x31/0x70 [ 8068.290688][ T254] ret_from_fork_asm+0x1a/0x30 [ 8068.290688][ T254] [ 8068.293003][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.293003][ T254] netdev_get_by_index+0x5e/0x80 [ 8068.293003][ T254] fib6_nh_init+0x3d8/0x1580 [ 8068.293003][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8068.293003][ T254] ip6_route_add+0x1c/0x140 [ 8068.293003][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8068.293003][ T254] inet6_addr_add+0x4f8/0xa40 [ 8068.293003][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8068.293003][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8068.293003][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.293003][ T254] netlink_unicast+0x449/0x710 [ 8068.293003][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.293003][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.293003][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.293003][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.293003][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.293003][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8068.293003][ T254] [ 8068.295442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.295442][ T254] netdev_get_by_index+0x5e/0x80 [ 8068.295442][ T254] fib6_nh_init+0x3d8/0x1580 [ 8068.295442][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8068.295442][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8068.295442][ T254] ipv6_add_addr+0x411/0x2000 [ 8068.295442][ T254] inet6_addr_add+0x30e/0xa40 [ 8068.295442][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8068.295442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8068.295442][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.295442][ T254] netlink_unicast+0x449/0x710 [ 8068.295442][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.295442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.295442][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.295442][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.295442][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.295442][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8068.295442][ T254] [ 8068.297881][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.297881][ T254] netdev_get_by_index+0x5e/0x80 [ 8068.297881][ T254] fib6_nh_init+0x3d8/0x1580 [ 8068.297881][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8068.297881][ T254] ip6_route_add+0x1c/0x140 [ 8068.297881][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8068.297881][ T254] addrconf_add_dev+0xe2/0x170 [ 8068.297881][ T254] inet6_addr_add+0x12f/0xa40 [ 8068.297881][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8068.297881][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8068.297881][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.297881][ T254] netlink_unicast+0x449/0x710 [ 8068.297881][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.297881][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.297881][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.297881][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.297881][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.297881][ T254] [ 8068.300296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.300296][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8068.300296][ T254] ipv6_find_idev+0x102/0x170 [ 8068.300296][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8068.300296][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8068.300296][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.300296][ T254] netlink_unicast+0x449/0x710 [ 8068.300296][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.300296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.300296][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.300296][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.300296][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.300296][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8068.300296][ T254] [ 8068.302106][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8068.302106][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8068.302106][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8068.302106][ T254] ipv6_find_idev+0x102/0x170 [ 8068.302106][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8068.302106][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8068.302106][ T254] netlink_rcv_skb+0x130/0x360 [ 8068.302106][ T254] netlink_unicast+0x449/0x710 [ 8068.302106][ T254] netlink_sendmsg+0x723/0xbe0 [ 8068.302106][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8068.302106][ T254] ___sys_sendmsg+0xee/0x170 [ 8068.302106][ T254] __sys_sendmsg+0xcd/0x170 [ 8068.302106][ T254] do_syscall_64+0xc6/0x1e0 [ 8068.302106][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8068.302106][ T254] [ 8078.383862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8078.384283][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.384283][ T254] dst_init+0x84/0x4a0 [ 8078.384283][ T254] dst_alloc+0x97/0x150 [ 8078.384283][ T254] ip6_dst_alloc+0x23/0x90 [ 8078.384283][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8078.384283][ T254] ip6_pol_route+0x56f/0x840 [ 8078.384283][ T254] fib6_rule_lookup+0x334/0x630 [ 8078.384283][ T254] ip6_route_output_flags+0x259/0x480 [ 8078.384283][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8078.384283][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8078.384283][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.384283][ T254] netlink_unicast+0x449/0x710 [ 8078.384283][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.384283][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.384283][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.384283][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.384283][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.384283][ T254] [ 8078.386651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.386651][ T254] netdev_get_by_index+0x5e/0x80 [ 8078.386651][ T254] fib6_nh_init+0x3d8/0x1580 [ 8078.386651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8078.386651][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8078.386651][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8078.386651][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8078.386651][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8078.386651][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8078.386651][ T254] addrconf_dad_begin+0x310/0x670 [ 8078.386651][ T254] addrconf_dad_work+0x10b/0xab0 [ 8078.386651][ T254] process_one_work+0x84d/0x18a0 [ 8078.386651][ T254] worker_thread+0x587/0xd30 [ 8078.386651][ T254] kthread+0x28a/0x350 [ 8078.386651][ T254] ret_from_fork+0x31/0x70 [ 8078.386651][ T254] ret_from_fork_asm+0x1a/0x30 [ 8078.386651][ T254] [ 8078.388809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.388809][ T254] netdev_get_by_index+0x5e/0x80 [ 8078.388809][ T254] fib6_nh_init+0x3d8/0x1580 [ 8078.388809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8078.388809][ T254] ip6_route_add+0x1c/0x140 [ 8078.388809][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8078.388809][ T254] inet6_addr_add+0x4f8/0xa40 [ 8078.388809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8078.388809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8078.388809][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.388809][ T254] netlink_unicast+0x449/0x710 [ 8078.388809][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.388809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.388809][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.388809][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.388809][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.388809][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8078.388809][ T254] [ 8078.391063][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.391063][ T254] netdev_get_by_index+0x5e/0x80 [ 8078.391063][ T254] fib6_nh_init+0x3d8/0x1580 [ 8078.391063][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8078.391063][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8078.391063][ T254] ipv6_add_addr+0x411/0x2000 [ 8078.391063][ T254] inet6_addr_add+0x30e/0xa40 [ 8078.391063][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8078.391063][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8078.391063][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.391063][ T254] netlink_unicast+0x449/0x710 [ 8078.391063][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.391063][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.391063][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.391063][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.391063][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.391063][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8078.391063][ T254] [ 8078.393334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.393334][ T254] netdev_get_by_index+0x5e/0x80 [ 8078.393334][ T254] fib6_nh_init+0x3d8/0x1580 [ 8078.393334][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8078.393334][ T254] ip6_route_add+0x1c/0x140 [ 8078.393334][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8078.393334][ T254] addrconf_add_dev+0xe2/0x170 [ 8078.393334][ T254] inet6_addr_add+0x12f/0xa40 [ 8078.393334][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8078.393334][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8078.393334][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.393334][ T254] netlink_unicast+0x449/0x710 [ 8078.393334][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.393334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.393334][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.393334][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.393334][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.393334][ T254] [ 8078.395547][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.395547][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8078.395547][ T254] ipv6_find_idev+0x102/0x170 [ 8078.395547][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8078.395547][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8078.395547][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.395547][ T254] netlink_unicast+0x449/0x710 [ 8078.395547][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.395547][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.395547][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.395547][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.395547][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.395547][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8078.395547][ T254] [ 8078.397268][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8078.397268][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8078.397268][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8078.397268][ T254] ipv6_find_idev+0x102/0x170 [ 8078.397268][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8078.397268][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8078.397268][ T254] netlink_rcv_skb+0x130/0x360 [ 8078.397268][ T254] netlink_unicast+0x449/0x710 [ 8078.397268][ T254] netlink_sendmsg+0x723/0xbe0 [ 8078.397268][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8078.397268][ T254] ___sys_sendmsg+0xee/0x170 [ 8078.397268][ T254] __sys_sendmsg+0xcd/0x170 [ 8078.397268][ T254] do_syscall_64+0xc6/0x1e0 [ 8078.397268][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8078.397268][ T254] [ 8088.615920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8088.616436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.616436][ T254] dst_init+0x84/0x4a0 [ 8088.616436][ T254] dst_alloc+0x97/0x150 [ 8088.616436][ T254] ip6_dst_alloc+0x23/0x90 [ 8088.616436][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8088.616436][ T254] ip6_pol_route+0x56f/0x840 [ 8088.616436][ T254] fib6_rule_lookup+0x334/0x630 [ 8088.616436][ T254] ip6_route_output_flags+0x259/0x480 [ 8088.616436][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8088.616436][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8088.616436][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.616436][ T254] netlink_unicast+0x449/0x710 [ 8088.616436][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.616436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.616436][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.616436][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.616436][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.616436][ T254] [ 8088.618644][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.618644][ T254] netdev_get_by_index+0x5e/0x80 [ 8088.618644][ T254] fib6_nh_init+0x3d8/0x1580 [ 8088.618644][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8088.618644][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8088.618644][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8088.618644][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8088.618644][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8088.618644][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8088.618644][ T254] addrconf_dad_begin+0x310/0x670 [ 8088.618644][ T254] addrconf_dad_work+0x10b/0xab0 [ 8088.618644][ T254] process_one_work+0x84d/0x18a0 [ 8088.618644][ T254] worker_thread+0x587/0xd30 [ 8088.618644][ T254] kthread+0x28a/0x350 [ 8088.618644][ T254] ret_from_fork+0x31/0x70 [ 8088.618644][ T254] ret_from_fork_asm+0x1a/0x30 [ 8088.618644][ T254] [ 8088.620799][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.620799][ T254] netdev_get_by_index+0x5e/0x80 [ 8088.620799][ T254] fib6_nh_init+0x3d8/0x1580 [ 8088.620799][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8088.620799][ T254] ip6_route_add+0x1c/0x140 [ 8088.620799][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8088.620799][ T254] inet6_addr_add+0x4f8/0xa40 [ 8088.620799][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8088.620799][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8088.620799][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.620799][ T254] netlink_unicast+0x449/0x710 [ 8088.620799][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.620799][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.620799][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.620799][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.620799][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.620799][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8088.620799][ T254] [ 8088.623038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.623038][ T254] netdev_get_by_index+0x5e/0x80 [ 8088.623038][ T254] fib6_nh_init+0x3d8/0x1580 [ 8088.623038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8088.623038][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8088.623038][ T254] ipv6_add_addr+0x411/0x2000 [ 8088.623038][ T254] inet6_addr_add+0x30e/0xa40 [ 8088.623038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8088.623038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8088.623038][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.623038][ T254] netlink_unicast+0x449/0x710 [ 8088.623038][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.623038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.623038][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.623038][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.623038][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.623038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8088.623038][ T254] [ 8088.625283][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.625283][ T254] netdev_get_by_index+0x5e/0x80 [ 8088.625283][ T254] fib6_nh_init+0x3d8/0x1580 [ 8088.625283][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8088.625283][ T254] ip6_route_add+0x1c/0x140 [ 8088.625283][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8088.625283][ T254] addrconf_add_dev+0xe2/0x170 [ 8088.625283][ T254] inet6_addr_add+0x12f/0xa40 [ 8088.625283][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8088.625283][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8088.625283][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.625283][ T254] netlink_unicast+0x449/0x710 [ 8088.625283][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.625283][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.625283][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.625283][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.625283][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.625283][ T254] [ 8088.627480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.627480][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8088.627480][ T254] ipv6_find_idev+0x102/0x170 [ 8088.627480][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8088.627480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8088.627480][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.627480][ T254] netlink_unicast+0x449/0x710 [ 8088.627480][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.627480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.627480][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.627480][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.627480][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.627480][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8088.627480][ T254] [ 8088.629203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8088.629203][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8088.629203][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8088.629203][ T254] ipv6_find_idev+0x102/0x170 [ 8088.629203][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8088.629203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8088.629203][ T254] netlink_rcv_skb+0x130/0x360 [ 8088.629203][ T254] netlink_unicast+0x449/0x710 [ 8088.629203][ T254] netlink_sendmsg+0x723/0xbe0 [ 8088.629203][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8088.629203][ T254] ___sys_sendmsg+0xee/0x170 [ 8088.629203][ T254] __sys_sendmsg+0xcd/0x170 [ 8088.629203][ T254] do_syscall_64+0xc6/0x1e0 [ 8088.629203][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8088.629203][ T254] [ 8098.871839][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8098.872310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.872310][ T254] dst_init+0x84/0x4a0 [ 8098.872310][ T254] dst_alloc+0x97/0x150 [ 8098.872310][ T254] ip6_dst_alloc+0x23/0x90 [ 8098.872310][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8098.872310][ T254] ip6_pol_route+0x56f/0x840 [ 8098.872310][ T254] fib6_rule_lookup+0x334/0x630 [ 8098.872310][ T254] ip6_route_output_flags+0x259/0x480 [ 8098.872310][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8098.872310][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8098.872310][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.872310][ T254] netlink_unicast+0x449/0x710 [ 8098.872310][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.872310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.872310][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.872310][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.872310][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.872310][ T254] [ 8098.874504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.874504][ T254] netdev_get_by_index+0x5e/0x80 [ 8098.874504][ T254] fib6_nh_init+0x3d8/0x1580 [ 8098.874504][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8098.874504][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8098.874504][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8098.874504][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8098.874504][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8098.874504][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8098.874504][ T254] addrconf_dad_begin+0x310/0x670 [ 8098.874504][ T254] addrconf_dad_work+0x10b/0xab0 [ 8098.874504][ T254] process_one_work+0x84d/0x18a0 [ 8098.874504][ T254] worker_thread+0x587/0xd30 [ 8098.874504][ T254] kthread+0x28a/0x350 [ 8098.874504][ T254] ret_from_fork+0x31/0x70 [ 8098.874504][ T254] ret_from_fork_asm+0x1a/0x30 [ 8098.874504][ T254] [ 8098.876646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.876646][ T254] netdev_get_by_index+0x5e/0x80 [ 8098.876646][ T254] fib6_nh_init+0x3d8/0x1580 [ 8098.876646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8098.876646][ T254] ip6_route_add+0x1c/0x140 [ 8098.876646][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8098.876646][ T254] inet6_addr_add+0x4f8/0xa40 [ 8098.876646][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8098.876646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8098.876646][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.876646][ T254] netlink_unicast+0x449/0x710 [ 8098.876646][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.876646][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.876646][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.876646][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.876646][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.876646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8098.876646][ T254] [ 8098.878895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.878895][ T254] netdev_get_by_index+0x5e/0x80 [ 8098.878895][ T254] fib6_nh_init+0x3d8/0x1580 [ 8098.878895][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8098.878895][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8098.878895][ T254] ipv6_add_addr+0x411/0x2000 [ 8098.878895][ T254] inet6_addr_add+0x30e/0xa40 [ 8098.878895][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8098.878895][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8098.878895][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.878895][ T254] netlink_unicast+0x449/0x710 [ 8098.878895][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.878895][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.878895][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.878895][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.878895][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.878895][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8098.878895][ T254] [ 8098.881177][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.881177][ T254] netdev_get_by_index+0x5e/0x80 [ 8098.881177][ T254] fib6_nh_init+0x3d8/0x1580 [ 8098.881177][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8098.881177][ T254] ip6_route_add+0x1c/0x140 [ 8098.881177][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8098.881177][ T254] addrconf_add_dev+0xe2/0x170 [ 8098.881177][ T254] inet6_addr_add+0x12f/0xa40 [ 8098.881177][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8098.881177][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8098.881177][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.881177][ T254] netlink_unicast+0x449/0x710 [ 8098.881177][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.881177][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.881177][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.881177][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.881177][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.881177][ T254] [ 8098.883368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.883368][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8098.883368][ T254] ipv6_find_idev+0x102/0x170 [ 8098.883368][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8098.883368][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8098.883368][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.883368][ T254] netlink_unicast+0x449/0x710 [ 8098.883368][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.883368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.883368][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.883368][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.883368][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.883368][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8098.883368][ T254] [ 8098.885092][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8098.885092][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8098.885092][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8098.885092][ T254] ipv6_find_idev+0x102/0x170 [ 8098.885092][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8098.885092][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8098.885092][ T254] netlink_rcv_skb+0x130/0x360 [ 8098.885092][ T254] netlink_unicast+0x449/0x710 [ 8098.885092][ T254] netlink_sendmsg+0x723/0xbe0 [ 8098.885092][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8098.885092][ T254] ___sys_sendmsg+0xee/0x170 [ 8098.885092][ T254] __sys_sendmsg+0xcd/0x170 [ 8098.885092][ T254] do_syscall_64+0xc6/0x1e0 [ 8098.885092][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8098.885092][ T254] [ 8109.127833][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8109.128300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.128300][ T254] dst_init+0x84/0x4a0 [ 8109.128300][ T254] dst_alloc+0x97/0x150 [ 8109.128300][ T254] ip6_dst_alloc+0x23/0x90 [ 8109.128300][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8109.128300][ T254] ip6_pol_route+0x56f/0x840 [ 8109.128300][ T254] fib6_rule_lookup+0x334/0x630 [ 8109.128300][ T254] ip6_route_output_flags+0x259/0x480 [ 8109.128300][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8109.128300][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8109.128300][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.128300][ T254] netlink_unicast+0x449/0x710 [ 8109.128300][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.128300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.128300][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.128300][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.128300][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.128300][ T254] [ 8109.130516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.130516][ T254] netdev_get_by_index+0x5e/0x80 [ 8109.130516][ T254] fib6_nh_init+0x3d8/0x1580 [ 8109.130516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8109.130516][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8109.130516][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8109.130516][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8109.130516][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8109.130516][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8109.130516][ T254] addrconf_dad_begin+0x310/0x670 [ 8109.130516][ T254] addrconf_dad_work+0x10b/0xab0 [ 8109.130516][ T254] process_one_work+0x84d/0x18a0 [ 8109.130516][ T254] worker_thread+0x587/0xd30 [ 8109.130516][ T254] kthread+0x28a/0x350 [ 8109.130516][ T254] ret_from_fork+0x31/0x70 [ 8109.130516][ T254] ret_from_fork_asm+0x1a/0x30 [ 8109.130516][ T254] [ 8109.132658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.132658][ T254] netdev_get_by_index+0x5e/0x80 [ 8109.132658][ T254] fib6_nh_init+0x3d8/0x1580 [ 8109.132658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8109.132658][ T254] ip6_route_add+0x1c/0x140 [ 8109.132658][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8109.132658][ T254] inet6_addr_add+0x4f8/0xa40 [ 8109.132658][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8109.132658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8109.132658][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.132658][ T254] netlink_unicast+0x449/0x710 [ 8109.132658][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.132658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.132658][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.132658][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.132658][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.132658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8109.132658][ T254] [ 8109.134895][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.134895][ T254] netdev_get_by_index+0x5e/0x80 [ 8109.134895][ T254] fib6_nh_init+0x3d8/0x1580 [ 8109.134895][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8109.134895][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8109.134895][ T254] ipv6_add_addr+0x411/0x2000 [ 8109.134895][ T254] inet6_addr_add+0x30e/0xa40 [ 8109.134895][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8109.134895][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8109.134895][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.134895][ T254] netlink_unicast+0x449/0x710 [ 8109.134895][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.134895][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.134895][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.134895][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.134895][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.134895][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8109.134895][ T254] [ 8109.137134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.137134][ T254] netdev_get_by_index+0x5e/0x80 [ 8109.137134][ T254] fib6_nh_init+0x3d8/0x1580 [ 8109.137134][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8109.137134][ T254] ip6_route_add+0x1c/0x140 [ 8109.137134][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8109.137134][ T254] addrconf_add_dev+0xe2/0x170 [ 8109.137134][ T254] inet6_addr_add+0x12f/0xa40 [ 8109.137134][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8109.137134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8109.137134][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.137134][ T254] netlink_unicast+0x449/0x710 [ 8109.137134][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.137134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.137134][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.137134][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.137134][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.137134][ T254] [ 8109.139343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.139343][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8109.139343][ T254] ipv6_find_idev+0x102/0x170 [ 8109.139343][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8109.139343][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8109.139343][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.139343][ T254] netlink_unicast+0x449/0x710 [ 8109.139343][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.139343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.139343][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.139343][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.139343][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.139343][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8109.139343][ T254] [ 8109.141068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8109.141068][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8109.141068][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8109.141068][ T254] ipv6_find_idev+0x102/0x170 [ 8109.141068][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8109.141068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8109.141068][ T254] netlink_rcv_skb+0x130/0x360 [ 8109.141068][ T254] netlink_unicast+0x449/0x710 [ 8109.141068][ T254] netlink_sendmsg+0x723/0xbe0 [ 8109.141068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8109.141068][ T254] ___sys_sendmsg+0xee/0x170 [ 8109.141068][ T254] __sys_sendmsg+0xcd/0x170 [ 8109.141068][ T254] do_syscall_64+0xc6/0x1e0 [ 8109.141068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8109.141068][ T254] [ 8119.383904][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8119.384626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.384626][ T254] dst_init+0x84/0x4a0 [ 8119.384626][ T254] dst_alloc+0x97/0x150 [ 8119.384626][ T254] ip6_dst_alloc+0x23/0x90 [ 8119.384626][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8119.384626][ T254] ip6_pol_route+0x56f/0x840 [ 8119.384626][ T254] fib6_rule_lookup+0x334/0x630 [ 8119.384626][ T254] ip6_route_output_flags+0x259/0x480 [ 8119.384626][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8119.384626][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8119.384626][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.384626][ T254] netlink_unicast+0x449/0x710 [ 8119.384626][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.384626][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.384626][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.384626][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.384626][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.384626][ T254] [ 8119.386869][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.386869][ T254] netdev_get_by_index+0x5e/0x80 [ 8119.386869][ T254] fib6_nh_init+0x3d8/0x1580 [ 8119.386869][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8119.386869][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8119.386869][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8119.386869][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8119.386869][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8119.386869][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8119.386869][ T254] addrconf_dad_begin+0x310/0x670 [ 8119.386869][ T254] addrconf_dad_work+0x10b/0xab0 [ 8119.386869][ T254] process_one_work+0x84d/0x18a0 [ 8119.386869][ T254] worker_thread+0x587/0xd30 [ 8119.386869][ T254] kthread+0x28a/0x350 [ 8119.386869][ T254] ret_from_fork+0x31/0x70 [ 8119.386869][ T254] ret_from_fork_asm+0x1a/0x30 [ 8119.386869][ T254] [ 8119.389054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.389054][ T254] netdev_get_by_index+0x5e/0x80 [ 8119.389054][ T254] fib6_nh_init+0x3d8/0x1580 [ 8119.389054][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8119.389054][ T254] ip6_route_add+0x1c/0x140 [ 8119.389054][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8119.389054][ T254] inet6_addr_add+0x4f8/0xa40 [ 8119.389054][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8119.389054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8119.389054][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.389054][ T254] netlink_unicast+0x449/0x710 [ 8119.389054][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.389054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.389054][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.389054][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.389054][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.389054][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8119.389054][ T254] [ 8119.391325][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.391325][ T254] netdev_get_by_index+0x5e/0x80 [ 8119.391325][ T254] fib6_nh_init+0x3d8/0x1580 [ 8119.391325][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8119.391325][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8119.391325][ T254] ipv6_add_addr+0x411/0x2000 [ 8119.391325][ T254] inet6_addr_add+0x30e/0xa40 [ 8119.391325][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8119.391325][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8119.391325][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.391325][ T254] netlink_unicast+0x449/0x710 [ 8119.391325][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.391325][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.391325][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.391325][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.391325][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.391325][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8119.391325][ T254] [ 8119.393569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.393569][ T254] netdev_get_by_index+0x5e/0x80 [ 8119.393569][ T254] fib6_nh_init+0x3d8/0x1580 [ 8119.393569][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8119.393569][ T254] ip6_route_add+0x1c/0x140 [ 8119.393569][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8119.393569][ T254] addrconf_add_dev+0xe2/0x170 [ 8119.393569][ T254] inet6_addr_add+0x12f/0xa40 [ 8119.393569][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8119.393569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8119.393569][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.393569][ T254] netlink_unicast+0x449/0x710 [ 8119.393569][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.393569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.393569][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.393569][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.393569][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.393569][ T254] [ 8119.395773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.395773][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8119.395773][ T254] ipv6_find_idev+0x102/0x170 [ 8119.395773][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8119.395773][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8119.395773][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.395773][ T254] netlink_unicast+0x449/0x710 [ 8119.395773][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.395773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.395773][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.395773][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.395773][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.395773][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8119.395773][ T254] [ 8119.397494][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8119.397494][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8119.397494][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8119.397494][ T254] ipv6_find_idev+0x102/0x170 [ 8119.397494][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8119.397494][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8119.397494][ T254] netlink_rcv_skb+0x130/0x360 [ 8119.397494][ T254] netlink_unicast+0x449/0x710 [ 8119.397494][ T254] netlink_sendmsg+0x723/0xbe0 [ 8119.397494][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8119.397494][ T254] ___sys_sendmsg+0xee/0x170 [ 8119.397494][ T254] __sys_sendmsg+0xcd/0x170 [ 8119.397494][ T254] do_syscall_64+0xc6/0x1e0 [ 8119.397494][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8119.397494][ T254] [ 8129.639860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8129.640275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.640275][ T254] dst_init+0x84/0x4a0 [ 8129.640275][ T254] dst_alloc+0x97/0x150 [ 8129.640275][ T254] ip6_dst_alloc+0x23/0x90 [ 8129.640275][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8129.640275][ T254] ip6_pol_route+0x56f/0x840 [ 8129.640275][ T254] fib6_rule_lookup+0x334/0x630 [ 8129.640275][ T254] ip6_route_output_flags+0x259/0x480 [ 8129.640275][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8129.640275][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8129.640275][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.640275][ T254] netlink_unicast+0x449/0x710 [ 8129.640275][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.640275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.640275][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.640275][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.640275][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.640275][ T254] [ 8129.642501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.642501][ T254] netdev_get_by_index+0x5e/0x80 [ 8129.642501][ T254] fib6_nh_init+0x3d8/0x1580 [ 8129.642501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8129.642501][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8129.642501][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8129.642501][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8129.642501][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8129.642501][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8129.642501][ T254] addrconf_dad_begin+0x310/0x670 [ 8129.642501][ T254] addrconf_dad_work+0x10b/0xab0 [ 8129.642501][ T254] process_one_work+0x84d/0x18a0 [ 8129.642501][ T254] worker_thread+0x587/0xd30 [ 8129.642501][ T254] kthread+0x28a/0x350 [ 8129.642501][ T254] ret_from_fork+0x31/0x70 [ 8129.642501][ T254] ret_from_fork_asm+0x1a/0x30 [ 8129.642501][ T254] [ 8129.644644][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.644644][ T254] netdev_get_by_index+0x5e/0x80 [ 8129.644644][ T254] fib6_nh_init+0x3d8/0x1580 [ 8129.644644][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8129.644644][ T254] ip6_route_add+0x1c/0x140 [ 8129.644644][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8129.644644][ T254] inet6_addr_add+0x4f8/0xa40 [ 8129.644644][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8129.644644][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8129.644644][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.644644][ T254] netlink_unicast+0x449/0x710 [ 8129.644644][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.644644][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.644644][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.644644][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.644644][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.644644][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8129.644644][ T254] [ 8129.646886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.646886][ T254] netdev_get_by_index+0x5e/0x80 [ 8129.646886][ T254] fib6_nh_init+0x3d8/0x1580 [ 8129.646886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8129.646886][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8129.646886][ T254] ipv6_add_addr+0x411/0x2000 [ 8129.646886][ T254] inet6_addr_add+0x30e/0xa40 [ 8129.646886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8129.646886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8129.646886][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.646886][ T254] netlink_unicast+0x449/0x710 [ 8129.646886][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.646886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.646886][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.646886][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.646886][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.646886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8129.646886][ T254] [ 8129.649144][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.649144][ T254] netdev_get_by_index+0x5e/0x80 [ 8129.649144][ T254] fib6_nh_init+0x3d8/0x1580 [ 8129.649144][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8129.649144][ T254] ip6_route_add+0x1c/0x140 [ 8129.649144][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8129.649144][ T254] addrconf_add_dev+0xe2/0x170 [ 8129.649144][ T254] inet6_addr_add+0x12f/0xa40 [ 8129.649144][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8129.649144][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8129.649144][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.649144][ T254] netlink_unicast+0x449/0x710 [ 8129.649144][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.649144][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.649144][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.649144][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.649144][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.649144][ T254] [ 8129.651354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.651354][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8129.651354][ T254] ipv6_find_idev+0x102/0x170 [ 8129.651354][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8129.651354][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8129.651354][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.651354][ T254] netlink_unicast+0x449/0x710 [ 8129.651354][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.651354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.651354][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.651354][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.651354][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.651354][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8129.651354][ T254] [ 8129.653078][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8129.653078][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8129.653078][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8129.653078][ T254] ipv6_find_idev+0x102/0x170 [ 8129.653078][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8129.653078][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8129.653078][ T254] netlink_rcv_skb+0x130/0x360 [ 8129.653078][ T254] netlink_unicast+0x449/0x710 [ 8129.653078][ T254] netlink_sendmsg+0x723/0xbe0 [ 8129.653078][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8129.653078][ T254] ___sys_sendmsg+0xee/0x170 [ 8129.653078][ T254] __sys_sendmsg+0xcd/0x170 [ 8129.653078][ T254] do_syscall_64+0xc6/0x1e0 [ 8129.653078][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8129.653078][ T254] [ 8139.895932][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8139.896570][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.896570][ T254] dst_init+0x84/0x4a0 [ 8139.896570][ T254] dst_alloc+0x97/0x150 [ 8139.896570][ T254] ip6_dst_alloc+0x23/0x90 [ 8139.896570][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8139.896570][ T254] ip6_pol_route+0x56f/0x840 [ 8139.896570][ T254] fib6_rule_lookup+0x334/0x630 [ 8139.896570][ T254] ip6_route_output_flags+0x259/0x480 [ 8139.896570][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8139.896570][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8139.896570][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.896570][ T254] netlink_unicast+0x449/0x710 [ 8139.896570][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.896570][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.896570][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.896570][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.896570][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.896570][ T254] [ 8139.898788][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.898788][ T254] netdev_get_by_index+0x5e/0x80 [ 8139.898788][ T254] fib6_nh_init+0x3d8/0x1580 [ 8139.898788][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8139.898788][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8139.898788][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8139.898788][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8139.898788][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8139.898788][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8139.898788][ T254] addrconf_dad_begin+0x310/0x670 [ 8139.898788][ T254] addrconf_dad_work+0x10b/0xab0 [ 8139.898788][ T254] process_one_work+0x84d/0x18a0 [ 8139.898788][ T254] worker_thread+0x587/0xd30 [ 8139.898788][ T254] kthread+0x28a/0x350 [ 8139.898788][ T254] ret_from_fork+0x31/0x70 [ 8139.898788][ T254] ret_from_fork_asm+0x1a/0x30 [ 8139.898788][ T254] [ 8139.900938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.900938][ T254] netdev_get_by_index+0x5e/0x80 [ 8139.900938][ T254] fib6_nh_init+0x3d8/0x1580 [ 8139.900938][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8139.900938][ T254] ip6_route_add+0x1c/0x140 [ 8139.900938][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8139.900938][ T254] inet6_addr_add+0x4f8/0xa40 [ 8139.900938][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8139.900938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8139.900938][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.900938][ T254] netlink_unicast+0x449/0x710 [ 8139.900938][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.900938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.900938][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.900938][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.900938][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.900938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8139.900938][ T254] [ 8139.903172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.903172][ T254] netdev_get_by_index+0x5e/0x80 [ 8139.903172][ T254] fib6_nh_init+0x3d8/0x1580 [ 8139.903172][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8139.903172][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8139.903172][ T254] ipv6_add_addr+0x411/0x2000 [ 8139.903172][ T254] inet6_addr_add+0x30e/0xa40 [ 8139.903172][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8139.903172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8139.903172][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.903172][ T254] netlink_unicast+0x449/0x710 [ 8139.903172][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.903172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.903172][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.903172][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.903172][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.903172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8139.903172][ T254] [ 8139.905408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.905408][ T254] netdev_get_by_index+0x5e/0x80 [ 8139.905408][ T254] fib6_nh_init+0x3d8/0x1580 [ 8139.905408][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8139.905408][ T254] ip6_route_add+0x1c/0x140 [ 8139.905408][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8139.905408][ T254] addrconf_add_dev+0xe2/0x170 [ 8139.905408][ T254] inet6_addr_add+0x12f/0xa40 [ 8139.905408][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8139.905408][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8139.905408][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.905408][ T254] netlink_unicast+0x449/0x710 [ 8139.905408][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.905408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.905408][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.905408][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.905408][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.905408][ T254] [ 8139.907616][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.907616][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8139.907616][ T254] ipv6_find_idev+0x102/0x170 [ 8139.907616][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8139.907616][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8139.907616][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.907616][ T254] netlink_unicast+0x449/0x710 [ 8139.907616][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.907616][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.907616][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.907616][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.907616][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.907616][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8139.907616][ T254] [ 8139.909337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8139.909337][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8139.909337][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8139.909337][ T254] ipv6_find_idev+0x102/0x170 [ 8139.909337][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8139.909337][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8139.909337][ T254] netlink_rcv_skb+0x130/0x360 [ 8139.909337][ T254] netlink_unicast+0x449/0x710 [ 8139.909337][ T254] netlink_sendmsg+0x723/0xbe0 [ 8139.909337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8139.909337][ T254] ___sys_sendmsg+0xee/0x170 [ 8139.909337][ T254] __sys_sendmsg+0xcd/0x170 [ 8139.909337][ T254] do_syscall_64+0xc6/0x1e0 [ 8139.909337][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8139.909337][ T254] [ 8149.943899][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8149.944569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.944569][ T254] dst_init+0x84/0x4a0 [ 8149.944569][ T254] dst_alloc+0x97/0x150 [ 8149.944569][ T254] ip6_dst_alloc+0x23/0x90 [ 8149.944569][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8149.944569][ T254] ip6_pol_route+0x56f/0x840 [ 8149.944569][ T254] fib6_rule_lookup+0x334/0x630 [ 8149.944569][ T254] ip6_route_output_flags+0x259/0x480 [ 8149.944569][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8149.944569][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8149.944569][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.944569][ T254] netlink_unicast+0x449/0x710 [ 8149.944569][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.944569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.944569][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.944569][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.944569][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.944569][ T254] [ 8149.946826][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.946826][ T254] netdev_get_by_index+0x5e/0x80 [ 8149.946826][ T254] fib6_nh_init+0x3d8/0x1580 [ 8149.946826][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8149.946826][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8149.946826][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8149.946826][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8149.946826][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8149.946826][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8149.946826][ T254] addrconf_dad_begin+0x310/0x670 [ 8149.946826][ T254] addrconf_dad_work+0x10b/0xab0 [ 8149.946826][ T254] process_one_work+0x84d/0x18a0 [ 8149.946826][ T254] worker_thread+0x587/0xd30 [ 8149.946826][ T254] kthread+0x28a/0x350 [ 8149.946826][ T254] ret_from_fork+0x31/0x70 [ 8149.946826][ T254] ret_from_fork_asm+0x1a/0x30 [ 8149.946826][ T254] [ 8149.949017][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.949017][ T254] netdev_get_by_index+0x5e/0x80 [ 8149.949017][ T254] fib6_nh_init+0x3d8/0x1580 [ 8149.949017][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8149.949017][ T254] ip6_route_add+0x1c/0x140 [ 8149.949017][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8149.949017][ T254] inet6_addr_add+0x4f8/0xa40 [ 8149.949017][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8149.949017][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8149.949017][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.949017][ T254] netlink_unicast+0x449/0x710 [ 8149.949017][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.949017][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.949017][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.949017][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.949017][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.949017][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8149.949017][ T254] [ 8149.951326][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.951326][ T254] netdev_get_by_index+0x5e/0x80 [ 8149.951326][ T254] fib6_nh_init+0x3d8/0x1580 [ 8149.951326][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8149.951326][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8149.951326][ T254] ipv6_add_addr+0x411/0x2000 [ 8149.951326][ T254] inet6_addr_add+0x30e/0xa40 [ 8149.951326][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8149.951326][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8149.951326][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.951326][ T254] netlink_unicast+0x449/0x710 [ 8149.951326][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.951326][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.951326][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.951326][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.951326][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.951326][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8149.951326][ T254] [ 8149.953630][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.953630][ T254] netdev_get_by_index+0x5e/0x80 [ 8149.953630][ T254] fib6_nh_init+0x3d8/0x1580 [ 8149.953630][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8149.953630][ T254] ip6_route_add+0x1c/0x140 [ 8149.953630][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8149.953630][ T254] addrconf_add_dev+0xe2/0x170 [ 8149.953630][ T254] inet6_addr_add+0x12f/0xa40 [ 8149.953630][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8149.953630][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8149.953630][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.953630][ T254] netlink_unicast+0x449/0x710 [ 8149.953630][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.953630][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.953630][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.953630][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.953630][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.953630][ T254] [ 8149.955844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.955844][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8149.955844][ T254] ipv6_find_idev+0x102/0x170 [ 8149.955844][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8149.955844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8149.955844][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.955844][ T254] netlink_unicast+0x449/0x710 [ 8149.955844][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.955844][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.955844][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.955844][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.955844][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.955844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8149.955844][ T254] [ 8149.957579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8149.957579][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8149.957579][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8149.957579][ T254] ipv6_find_idev+0x102/0x170 [ 8149.957579][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8149.957579][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8149.957579][ T254] netlink_rcv_skb+0x130/0x360 [ 8149.957579][ T254] netlink_unicast+0x449/0x710 [ 8149.957579][ T254] netlink_sendmsg+0x723/0xbe0 [ 8149.957579][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8149.957579][ T254] ___sys_sendmsg+0xee/0x170 [ 8149.957579][ T254] __sys_sendmsg+0xcd/0x170 [ 8149.957579][ T254] do_syscall_64+0xc6/0x1e0 [ 8149.957579][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8149.957579][ T254] [ 8160.191884][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8160.192643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.192643][ T254] dst_init+0x84/0x4a0 [ 8160.192643][ T254] dst_alloc+0x97/0x150 [ 8160.192643][ T254] ip6_dst_alloc+0x23/0x90 [ 8160.192643][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8160.192643][ T254] ip6_pol_route+0x56f/0x840 [ 8160.192643][ T254] fib6_rule_lookup+0x334/0x630 [ 8160.192643][ T254] ip6_route_output_flags+0x259/0x480 [ 8160.192643][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8160.192643][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8160.192643][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.192643][ T254] netlink_unicast+0x449/0x710 [ 8160.192643][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.192643][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.192643][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.192643][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.192643][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.192643][ T254] [ 8160.194920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.194920][ T254] netdev_get_by_index+0x5e/0x80 [ 8160.194920][ T254] fib6_nh_init+0x3d8/0x1580 [ 8160.194920][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8160.194920][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8160.194920][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8160.194920][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8160.194920][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8160.194920][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8160.194920][ T254] addrconf_dad_begin+0x310/0x670 [ 8160.194920][ T254] addrconf_dad_work+0x10b/0xab0 [ 8160.194920][ T254] process_one_work+0x84d/0x18a0 [ 8160.194920][ T254] worker_thread+0x587/0xd30 [ 8160.194920][ T254] kthread+0x28a/0x350 [ 8160.194920][ T254] ret_from_fork+0x31/0x70 [ 8160.194920][ T254] ret_from_fork_asm+0x1a/0x30 [ 8160.194920][ T254] [ 8160.197103][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.197103][ T254] netdev_get_by_index+0x5e/0x80 [ 8160.197103][ T254] fib6_nh_init+0x3d8/0x1580 [ 8160.197103][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8160.197103][ T254] ip6_route_add+0x1c/0x140 [ 8160.197103][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8160.197103][ T254] inet6_addr_add+0x4f8/0xa40 [ 8160.197103][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8160.197103][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8160.197103][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.197103][ T254] netlink_unicast+0x449/0x710 [ 8160.197103][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.197103][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.197103][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.197103][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.197103][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.197103][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8160.197103][ T254] [ 8160.199363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.199363][ T254] netdev_get_by_index+0x5e/0x80 [ 8160.199363][ T254] fib6_nh_init+0x3d8/0x1580 [ 8160.199363][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8160.199363][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8160.199363][ T254] ipv6_add_addr+0x411/0x2000 [ 8160.199363][ T254] inet6_addr_add+0x30e/0xa40 [ 8160.199363][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8160.199363][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8160.199363][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.199363][ T254] netlink_unicast+0x449/0x710 [ 8160.199363][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.199363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.199363][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.199363][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.199363][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.199363][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8160.199363][ T254] [ 8160.201628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.201628][ T254] netdev_get_by_index+0x5e/0x80 [ 8160.201628][ T254] fib6_nh_init+0x3d8/0x1580 [ 8160.201628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8160.201628][ T254] ip6_route_add+0x1c/0x140 [ 8160.201628][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8160.201628][ T254] addrconf_add_dev+0xe2/0x170 [ 8160.201628][ T254] inet6_addr_add+0x12f/0xa40 [ 8160.201628][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8160.201628][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8160.201628][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.201628][ T254] netlink_unicast+0x449/0x710 [ 8160.201628][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.201628][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.201628][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.201628][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.201628][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.201628][ T254] [ 8160.203830][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.203830][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8160.203830][ T254] ipv6_find_idev+0x102/0x170 [ 8160.203830][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8160.203830][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8160.203830][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.203830][ T254] netlink_unicast+0x449/0x710 [ 8160.203830][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.203830][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.203830][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.203830][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.203830][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.203830][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8160.203830][ T254] [ 8160.205554][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8160.205554][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8160.205554][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8160.205554][ T254] ipv6_find_idev+0x102/0x170 [ 8160.205554][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8160.205554][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8160.205554][ T254] netlink_rcv_skb+0x130/0x360 [ 8160.205554][ T254] netlink_unicast+0x449/0x710 [ 8160.205554][ T254] netlink_sendmsg+0x723/0xbe0 [ 8160.205554][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8160.205554][ T254] ___sys_sendmsg+0xee/0x170 [ 8160.205554][ T254] __sys_sendmsg+0xcd/0x170 [ 8160.205554][ T254] do_syscall_64+0xc6/0x1e0 [ 8160.205554][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8160.205554][ T254] [ 8170.407842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8170.408323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.408323][ T254] dst_init+0x84/0x4a0 [ 8170.408323][ T254] dst_alloc+0x97/0x150 [ 8170.408323][ T254] ip6_dst_alloc+0x23/0x90 [ 8170.408323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8170.408323][ T254] ip6_pol_route+0x56f/0x840 [ 8170.408323][ T254] fib6_rule_lookup+0x334/0x630 [ 8170.408323][ T254] ip6_route_output_flags+0x259/0x480 [ 8170.408323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8170.408323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8170.408323][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.408323][ T254] netlink_unicast+0x449/0x710 [ 8170.408323][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.408323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.408323][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.408323][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.408323][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.408323][ T254] [ 8170.410520][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.410520][ T254] netdev_get_by_index+0x5e/0x80 [ 8170.410520][ T254] fib6_nh_init+0x3d8/0x1580 [ 8170.410520][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8170.410520][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8170.410520][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8170.410520][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8170.410520][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8170.410520][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8170.410520][ T254] addrconf_dad_begin+0x310/0x670 [ 8170.410520][ T254] addrconf_dad_work+0x10b/0xab0 [ 8170.410520][ T254] process_one_work+0x84d/0x18a0 [ 8170.410520][ T254] worker_thread+0x587/0xd30 [ 8170.410520][ T254] kthread+0x28a/0x350 [ 8170.410520][ T254] ret_from_fork+0x31/0x70 [ 8170.410520][ T254] ret_from_fork_asm+0x1a/0x30 [ 8170.410520][ T254] [ 8170.412657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.412657][ T254] netdev_get_by_index+0x5e/0x80 [ 8170.412657][ T254] fib6_nh_init+0x3d8/0x1580 [ 8170.412657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8170.412657][ T254] ip6_route_add+0x1c/0x140 [ 8170.412657][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8170.412657][ T254] inet6_addr_add+0x4f8/0xa40 [ 8170.412657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8170.412657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8170.412657][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.412657][ T254] netlink_unicast+0x449/0x710 [ 8170.412657][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.412657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.412657][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.412657][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.412657][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.412657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8170.412657][ T254] [ 8170.414887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.414887][ T254] netdev_get_by_index+0x5e/0x80 [ 8170.414887][ T254] fib6_nh_init+0x3d8/0x1580 [ 8170.414887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8170.414887][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8170.414887][ T254] ipv6_add_addr+0x411/0x2000 [ 8170.414887][ T254] inet6_addr_add+0x30e/0xa40 [ 8170.414887][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8170.414887][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8170.414887][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.414887][ T254] netlink_unicast+0x449/0x710 [ 8170.414887][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.414887][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.414887][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.414887][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.414887][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.414887][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8170.414887][ T254] [ 8170.417126][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.417126][ T254] netdev_get_by_index+0x5e/0x80 [ 8170.417126][ T254] fib6_nh_init+0x3d8/0x1580 [ 8170.417126][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8170.417126][ T254] ip6_route_add+0x1c/0x140 [ 8170.417126][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8170.417126][ T254] addrconf_add_dev+0xe2/0x170 [ 8170.417126][ T254] inet6_addr_add+0x12f/0xa40 [ 8170.417126][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8170.417126][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8170.417126][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.417126][ T254] netlink_unicast+0x449/0x710 [ 8170.417126][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.417126][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.417126][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.417126][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.417126][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.417126][ T254] [ 8170.419317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.419317][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8170.419317][ T254] ipv6_find_idev+0x102/0x170 [ 8170.419317][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8170.419317][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8170.419317][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.419317][ T254] netlink_unicast+0x449/0x710 [ 8170.419317][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.419317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.419317][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.419317][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.419317][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.419317][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8170.419317][ T254] [ 8170.421048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8170.421048][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8170.421048][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8170.421048][ T254] ipv6_find_idev+0x102/0x170 [ 8170.421048][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8170.421048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8170.421048][ T254] netlink_rcv_skb+0x130/0x360 [ 8170.421048][ T254] netlink_unicast+0x449/0x710 [ 8170.421048][ T254] netlink_sendmsg+0x723/0xbe0 [ 8170.421048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8170.421048][ T254] ___sys_sendmsg+0xee/0x170 [ 8170.421048][ T254] __sys_sendmsg+0xcd/0x170 [ 8170.421048][ T254] do_syscall_64+0xc6/0x1e0 [ 8170.421048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8170.421048][ T254] [ 8180.671954][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8180.672803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.672803][ T254] dst_init+0x84/0x4a0 [ 8180.672803][ T254] dst_alloc+0x97/0x150 [ 8180.672803][ T254] ip6_dst_alloc+0x23/0x90 [ 8180.672803][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8180.672803][ T254] ip6_pol_route+0x56f/0x840 [ 8180.672803][ T254] fib6_rule_lookup+0x334/0x630 [ 8180.672803][ T254] ip6_route_output_flags+0x259/0x480 [ 8180.672803][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8180.672803][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8180.672803][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.672803][ T254] netlink_unicast+0x449/0x710 [ 8180.672803][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.672803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.672803][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.672803][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.672803][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.672803][ T254] [ 8180.675053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.675053][ T254] netdev_get_by_index+0x5e/0x80 [ 8180.675053][ T254] fib6_nh_init+0x3d8/0x1580 [ 8180.675053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8180.675053][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8180.675053][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8180.675053][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8180.675053][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8180.675053][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8180.675053][ T254] addrconf_dad_begin+0x310/0x670 [ 8180.675053][ T254] addrconf_dad_work+0x10b/0xab0 [ 8180.675053][ T254] process_one_work+0x84d/0x18a0 [ 8180.675053][ T254] worker_thread+0x587/0xd30 [ 8180.675053][ T254] kthread+0x28a/0x350 [ 8180.675053][ T254] ret_from_fork+0x31/0x70 [ 8180.675053][ T254] ret_from_fork_asm+0x1a/0x30 [ 8180.675053][ T254] [ 8180.677244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.677244][ T254] netdev_get_by_index+0x5e/0x80 [ 8180.677244][ T254] fib6_nh_init+0x3d8/0x1580 [ 8180.677244][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8180.677244][ T254] ip6_route_add+0x1c/0x140 [ 8180.677244][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8180.677244][ T254] inet6_addr_add+0x4f8/0xa40 [ 8180.677244][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8180.677244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8180.677244][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.677244][ T254] netlink_unicast+0x449/0x710 [ 8180.677244][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.677244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.677244][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.677244][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.677244][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.677244][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8180.677244][ T254] [ 8180.679543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.679543][ T254] netdev_get_by_index+0x5e/0x80 [ 8180.679543][ T254] fib6_nh_init+0x3d8/0x1580 [ 8180.679543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8180.679543][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8180.679543][ T254] ipv6_add_addr+0x411/0x2000 [ 8180.679543][ T254] inet6_addr_add+0x30e/0xa40 [ 8180.679543][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8180.679543][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8180.679543][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.679543][ T254] netlink_unicast+0x449/0x710 [ 8180.679543][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.679543][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.679543][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.679543][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.679543][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.679543][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8180.679543][ T254] [ 8180.681791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.681791][ T254] netdev_get_by_index+0x5e/0x80 [ 8180.681791][ T254] fib6_nh_init+0x3d8/0x1580 [ 8180.681791][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8180.681791][ T254] ip6_route_add+0x1c/0x140 [ 8180.681791][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8180.681791][ T254] addrconf_add_dev+0xe2/0x170 [ 8180.681791][ T254] inet6_addr_add+0x12f/0xa40 [ 8180.681791][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8180.681791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8180.681791][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.681791][ T254] netlink_unicast+0x449/0x710 [ 8180.681791][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.681791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.681791][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.681791][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.681791][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.681791][ T254] [ 8180.684000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.684000][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8180.684000][ T254] ipv6_find_idev+0x102/0x170 [ 8180.684000][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8180.684000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8180.684000][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.684000][ T254] netlink_unicast+0x449/0x710 [ 8180.684000][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.684000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.684000][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.684000][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.684000][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.684000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8180.684000][ T254] [ 8180.685744][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8180.685744][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8180.685744][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8180.685744][ T254] ipv6_find_idev+0x102/0x170 [ 8180.685744][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8180.685744][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8180.685744][ T254] netlink_rcv_skb+0x130/0x360 [ 8180.685744][ T254] netlink_unicast+0x449/0x710 [ 8180.685744][ T254] netlink_sendmsg+0x723/0xbe0 [ 8180.685744][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8180.685744][ T254] ___sys_sendmsg+0xee/0x170 [ 8180.685744][ T254] __sys_sendmsg+0xcd/0x170 [ 8180.685744][ T254] do_syscall_64+0xc6/0x1e0 [ 8180.685744][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8180.685744][ T254] [ 8190.935926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8190.936672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.936672][ T254] dst_init+0x84/0x4a0 [ 8190.936672][ T254] dst_alloc+0x97/0x150 [ 8190.936672][ T254] ip6_dst_alloc+0x23/0x90 [ 8190.936672][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8190.936672][ T254] ip6_pol_route+0x56f/0x840 [ 8190.936672][ T254] fib6_rule_lookup+0x334/0x630 [ 8190.936672][ T254] ip6_route_output_flags+0x259/0x480 [ 8190.936672][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8190.936672][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8190.936672][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.936672][ T254] netlink_unicast+0x449/0x710 [ 8190.936672][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.936672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.936672][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.936672][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.936672][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.936672][ T254] [ 8190.938901][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.938901][ T254] netdev_get_by_index+0x5e/0x80 [ 8190.938901][ T254] fib6_nh_init+0x3d8/0x1580 [ 8190.938901][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8190.938901][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8190.938901][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8190.938901][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8190.938901][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8190.938901][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8190.938901][ T254] addrconf_dad_begin+0x310/0x670 [ 8190.938901][ T254] addrconf_dad_work+0x10b/0xab0 [ 8190.938901][ T254] process_one_work+0x84d/0x18a0 [ 8190.938901][ T254] worker_thread+0x587/0xd30 [ 8190.938901][ T254] kthread+0x28a/0x350 [ 8190.938901][ T254] ret_from_fork+0x31/0x70 [ 8190.938901][ T254] ret_from_fork_asm+0x1a/0x30 [ 8190.938901][ T254] [ 8190.941067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.941067][ T254] netdev_get_by_index+0x5e/0x80 [ 8190.941067][ T254] fib6_nh_init+0x3d8/0x1580 [ 8190.941067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8190.941067][ T254] ip6_route_add+0x1c/0x140 [ 8190.941067][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8190.941067][ T254] inet6_addr_add+0x4f8/0xa40 [ 8190.941067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8190.941067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8190.941067][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.941067][ T254] netlink_unicast+0x449/0x710 [ 8190.941067][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.941067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.941067][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.941067][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.941067][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.941067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8190.941067][ T254] [ 8190.943318][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.943318][ T254] netdev_get_by_index+0x5e/0x80 [ 8190.943318][ T254] fib6_nh_init+0x3d8/0x1580 [ 8190.943318][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8190.943318][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8190.943318][ T254] ipv6_add_addr+0x411/0x2000 [ 8190.943318][ T254] inet6_addr_add+0x30e/0xa40 [ 8190.943318][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8190.943318][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8190.943318][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.943318][ T254] netlink_unicast+0x449/0x710 [ 8190.943318][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.943318][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.943318][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.943318][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.943318][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.943318][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8190.943318][ T254] [ 8190.945561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.945561][ T254] netdev_get_by_index+0x5e/0x80 [ 8190.945561][ T254] fib6_nh_init+0x3d8/0x1580 [ 8190.945561][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8190.945561][ T254] ip6_route_add+0x1c/0x140 [ 8190.945561][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8190.945561][ T254] addrconf_add_dev+0xe2/0x170 [ 8190.945561][ T254] inet6_addr_add+0x12f/0xa40 [ 8190.945561][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8190.945561][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8190.945561][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.945561][ T254] netlink_unicast+0x449/0x710 [ 8190.945561][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.945561][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.945561][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.945561][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.945561][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.945561][ T254] [ 8190.947764][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.947764][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8190.947764][ T254] ipv6_find_idev+0x102/0x170 [ 8190.947764][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8190.947764][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8190.947764][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.947764][ T254] netlink_unicast+0x449/0x710 [ 8190.947764][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.947764][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.947764][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.947764][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.947764][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.947764][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8190.947764][ T254] [ 8190.949506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8190.949506][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8190.949506][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8190.949506][ T254] ipv6_find_idev+0x102/0x170 [ 8190.949506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8190.949506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8190.949506][ T254] netlink_rcv_skb+0x130/0x360 [ 8190.949506][ T254] netlink_unicast+0x449/0x710 [ 8190.949506][ T254] netlink_sendmsg+0x723/0xbe0 [ 8190.949506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8190.949506][ T254] ___sys_sendmsg+0xee/0x170 [ 8190.949506][ T254] __sys_sendmsg+0xcd/0x170 [ 8190.949506][ T254] do_syscall_64+0xc6/0x1e0 [ 8190.949506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8190.949506][ T254] [ 8201.199853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8201.200270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.200270][ T254] dst_init+0x84/0x4a0 [ 8201.200270][ T254] dst_alloc+0x97/0x150 [ 8201.200270][ T254] ip6_dst_alloc+0x23/0x90 [ 8201.200270][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8201.200270][ T254] ip6_pol_route+0x56f/0x840 [ 8201.200270][ T254] fib6_rule_lookup+0x334/0x630 [ 8201.200270][ T254] ip6_route_output_flags+0x259/0x480 [ 8201.200270][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8201.200270][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8201.200270][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.200270][ T254] netlink_unicast+0x449/0x710 [ 8201.200270][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.200270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.200270][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.200270][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.200270][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.200270][ T254] [ 8201.202512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.202512][ T254] netdev_get_by_index+0x5e/0x80 [ 8201.202512][ T254] fib6_nh_init+0x3d8/0x1580 [ 8201.202512][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8201.202512][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8201.202512][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8201.202512][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8201.202512][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8201.202512][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8201.202512][ T254] addrconf_dad_begin+0x310/0x670 [ 8201.202512][ T254] addrconf_dad_work+0x10b/0xab0 [ 8201.202512][ T254] process_one_work+0x84d/0x18a0 [ 8201.202512][ T254] worker_thread+0x587/0xd30 [ 8201.202512][ T254] kthread+0x28a/0x350 [ 8201.202512][ T254] ret_from_fork+0x31/0x70 [ 8201.202512][ T254] ret_from_fork_asm+0x1a/0x30 [ 8201.202512][ T254] [ 8201.204691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.204691][ T254] netdev_get_by_index+0x5e/0x80 [ 8201.204691][ T254] fib6_nh_init+0x3d8/0x1580 [ 8201.204691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8201.204691][ T254] ip6_route_add+0x1c/0x140 [ 8201.204691][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8201.204691][ T254] inet6_addr_add+0x4f8/0xa40 [ 8201.204691][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8201.204691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8201.204691][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.204691][ T254] netlink_unicast+0x449/0x710 [ 8201.204691][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.204691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.204691][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.204691][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.204691][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.204691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8201.204691][ T254] [ 8201.206958][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.206958][ T254] netdev_get_by_index+0x5e/0x80 [ 8201.206958][ T254] fib6_nh_init+0x3d8/0x1580 [ 8201.206958][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8201.206958][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8201.206958][ T254] ipv6_add_addr+0x411/0x2000 [ 8201.206958][ T254] inet6_addr_add+0x30e/0xa40 [ 8201.206958][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8201.206958][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8201.206958][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.206958][ T254] netlink_unicast+0x449/0x710 [ 8201.206958][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.206958][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.206958][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.206958][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.206958][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.206958][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8201.206958][ T254] [ 8201.209200][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.209200][ T254] netdev_get_by_index+0x5e/0x80 [ 8201.209200][ T254] fib6_nh_init+0x3d8/0x1580 [ 8201.209200][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8201.209200][ T254] ip6_route_add+0x1c/0x140 [ 8201.209200][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8201.209200][ T254] addrconf_add_dev+0xe2/0x170 [ 8201.209200][ T254] inet6_addr_add+0x12f/0xa40 [ 8201.209200][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8201.209200][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8201.209200][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.209200][ T254] netlink_unicast+0x449/0x710 [ 8201.209200][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.209200][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.209200][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.209200][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.209200][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.209200][ T254] [ 8201.211407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.211407][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8201.211407][ T254] ipv6_find_idev+0x102/0x170 [ 8201.211407][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8201.211407][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8201.211407][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.211407][ T254] netlink_unicast+0x449/0x710 [ 8201.211407][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.211407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.211407][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.211407][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.211407][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.211407][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8201.211407][ T254] [ 8201.213134][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8201.213134][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8201.213134][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8201.213134][ T254] ipv6_find_idev+0x102/0x170 [ 8201.213134][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8201.213134][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8201.213134][ T254] netlink_rcv_skb+0x130/0x360 [ 8201.213134][ T254] netlink_unicast+0x449/0x710 [ 8201.213134][ T254] netlink_sendmsg+0x723/0xbe0 [ 8201.213134][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8201.213134][ T254] ___sys_sendmsg+0xee/0x170 [ 8201.213134][ T254] __sys_sendmsg+0xcd/0x170 [ 8201.213134][ T254] do_syscall_64+0xc6/0x1e0 [ 8201.213134][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8201.213134][ T254] [ 8211.463794][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8211.464274][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.464274][ T254] dst_init+0x84/0x4a0 [ 8211.464274][ T254] dst_alloc+0x97/0x150 [ 8211.464274][ T254] ip6_dst_alloc+0x23/0x90 [ 8211.464274][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8211.464274][ T254] ip6_pol_route+0x56f/0x840 [ 8211.464274][ T254] fib6_rule_lookup+0x334/0x630 [ 8211.464274][ T254] ip6_route_output_flags+0x259/0x480 [ 8211.464274][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8211.464274][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8211.464274][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.464274][ T254] netlink_unicast+0x449/0x710 [ 8211.464274][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.464274][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.464274][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.464274][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.464274][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.464274][ T254] [ 8211.466501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.466501][ T254] netdev_get_by_index+0x5e/0x80 [ 8211.466501][ T254] fib6_nh_init+0x3d8/0x1580 [ 8211.466501][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8211.466501][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8211.466501][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8211.466501][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8211.466501][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8211.466501][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8211.466501][ T254] addrconf_dad_begin+0x310/0x670 [ 8211.466501][ T254] addrconf_dad_work+0x10b/0xab0 [ 8211.466501][ T254] process_one_work+0x84d/0x18a0 [ 8211.466501][ T254] worker_thread+0x587/0xd30 [ 8211.466501][ T254] kthread+0x28a/0x350 [ 8211.466501][ T254] ret_from_fork+0x31/0x70 [ 8211.466501][ T254] ret_from_fork_asm+0x1a/0x30 [ 8211.466501][ T254] [ 8211.468666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.468666][ T254] netdev_get_by_index+0x5e/0x80 [ 8211.468666][ T254] fib6_nh_init+0x3d8/0x1580 [ 8211.468666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8211.468666][ T254] ip6_route_add+0x1c/0x140 [ 8211.468666][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8211.468666][ T254] inet6_addr_add+0x4f8/0xa40 [ 8211.468666][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8211.468666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8211.468666][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.468666][ T254] netlink_unicast+0x449/0x710 [ 8211.468666][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.468666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.468666][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.468666][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.468666][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.468666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8211.468666][ T254] [ 8211.470967][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.470967][ T254] netdev_get_by_index+0x5e/0x80 [ 8211.470967][ T254] fib6_nh_init+0x3d8/0x1580 [ 8211.470967][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8211.470967][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8211.470967][ T254] ipv6_add_addr+0x411/0x2000 [ 8211.470967][ T254] inet6_addr_add+0x30e/0xa40 [ 8211.470967][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8211.470967][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8211.470967][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.470967][ T254] netlink_unicast+0x449/0x710 [ 8211.470967][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.470967][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.470967][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.470967][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.470967][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.470967][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8211.470967][ T254] [ 8211.473222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.473222][ T254] netdev_get_by_index+0x5e/0x80 [ 8211.473222][ T254] fib6_nh_init+0x3d8/0x1580 [ 8211.473222][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8211.473222][ T254] ip6_route_add+0x1c/0x140 [ 8211.473222][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8211.473222][ T254] addrconf_add_dev+0xe2/0x170 [ 8211.473222][ T254] inet6_addr_add+0x12f/0xa40 [ 8211.473222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8211.473222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8211.473222][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.473222][ T254] netlink_unicast+0x449/0x710 [ 8211.473222][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.473222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.473222][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.473222][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.473222][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.473222][ T254] [ 8211.475430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.475430][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8211.475430][ T254] ipv6_find_idev+0x102/0x170 [ 8211.475430][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8211.475430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8211.475430][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.475430][ T254] netlink_unicast+0x449/0x710 [ 8211.475430][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.475430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.475430][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.475430][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.475430][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.475430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8211.475430][ T254] [ 8211.477172][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8211.477172][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8211.477172][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8211.477172][ T254] ipv6_find_idev+0x102/0x170 [ 8211.477172][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8211.477172][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8211.477172][ T254] netlink_rcv_skb+0x130/0x360 [ 8211.477172][ T254] netlink_unicast+0x449/0x710 [ 8211.477172][ T254] netlink_sendmsg+0x723/0xbe0 [ 8211.477172][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8211.477172][ T254] ___sys_sendmsg+0xee/0x170 [ 8211.477172][ T254] __sys_sendmsg+0xcd/0x170 [ 8211.477172][ T254] do_syscall_64+0xc6/0x1e0 [ 8211.477172][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8211.477172][ T254] [ 8221.543934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8221.544683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.544683][ T254] dst_init+0x84/0x4a0 [ 8221.544683][ T254] dst_alloc+0x97/0x150 [ 8221.544683][ T254] ip6_dst_alloc+0x23/0x90 [ 8221.544683][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8221.544683][ T254] ip6_pol_route+0x56f/0x840 [ 8221.544683][ T254] fib6_rule_lookup+0x334/0x630 [ 8221.544683][ T254] ip6_route_output_flags+0x259/0x480 [ 8221.544683][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8221.544683][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8221.544683][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.544683][ T254] netlink_unicast+0x449/0x710 [ 8221.544683][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.544683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.544683][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.544683][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.544683][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.544683][ T254] [ 8221.546887][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.546887][ T254] netdev_get_by_index+0x5e/0x80 [ 8221.546887][ T254] fib6_nh_init+0x3d8/0x1580 [ 8221.546887][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8221.546887][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8221.546887][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8221.546887][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8221.546887][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8221.546887][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8221.546887][ T254] addrconf_dad_begin+0x310/0x670 [ 8221.546887][ T254] addrconf_dad_work+0x10b/0xab0 [ 8221.546887][ T254] process_one_work+0x84d/0x18a0 [ 8221.546887][ T254] worker_thread+0x587/0xd30 [ 8221.546887][ T254] kthread+0x28a/0x350 [ 8221.546887][ T254] ret_from_fork+0x31/0x70 [ 8221.546887][ T254] ret_from_fork_asm+0x1a/0x30 [ 8221.546887][ T254] [ 8221.549053][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.549053][ T254] netdev_get_by_index+0x5e/0x80 [ 8221.549053][ T254] fib6_nh_init+0x3d8/0x1580 [ 8221.549053][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8221.549053][ T254] ip6_route_add+0x1c/0x140 [ 8221.549053][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8221.549053][ T254] inet6_addr_add+0x4f8/0xa40 [ 8221.549053][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8221.549053][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8221.549053][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.549053][ T254] netlink_unicast+0x449/0x710 [ 8221.549053][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.549053][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.549053][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.549053][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.549053][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.549053][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8221.549053][ T254] [ 8221.551389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.551389][ T254] netdev_get_by_index+0x5e/0x80 [ 8221.551389][ T254] fib6_nh_init+0x3d8/0x1580 [ 8221.551389][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8221.551389][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8221.551389][ T254] ipv6_add_addr+0x411/0x2000 [ 8221.551389][ T254] inet6_addr_add+0x30e/0xa40 [ 8221.551389][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8221.551389][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8221.551389][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.551389][ T254] netlink_unicast+0x449/0x710 [ 8221.551389][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.551389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.551389][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.551389][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.551389][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.551389][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8221.551389][ T254] [ 8221.553634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.553634][ T254] netdev_get_by_index+0x5e/0x80 [ 8221.553634][ T254] fib6_nh_init+0x3d8/0x1580 [ 8221.553634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8221.553634][ T254] ip6_route_add+0x1c/0x140 [ 8221.553634][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8221.553634][ T254] addrconf_add_dev+0xe2/0x170 [ 8221.553634][ T254] inet6_addr_add+0x12f/0xa40 [ 8221.553634][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8221.553634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8221.553634][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.553634][ T254] netlink_unicast+0x449/0x710 [ 8221.553634][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.553634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.553634][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.553634][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.553634][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.553634][ T254] [ 8221.555843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.555843][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8221.555843][ T254] ipv6_find_idev+0x102/0x170 [ 8221.555843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8221.555843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8221.555843][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.555843][ T254] netlink_unicast+0x449/0x710 [ 8221.555843][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.555843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.555843][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.555843][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.555843][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.555843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8221.555843][ T254] [ 8221.557573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8221.557573][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8221.557573][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8221.557573][ T254] ipv6_find_idev+0x102/0x170 [ 8221.557573][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8221.557573][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8221.557573][ T254] netlink_rcv_skb+0x130/0x360 [ 8221.557573][ T254] netlink_unicast+0x449/0x710 [ 8221.557573][ T254] netlink_sendmsg+0x723/0xbe0 [ 8221.557573][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8221.557573][ T254] ___sys_sendmsg+0xee/0x170 [ 8221.557573][ T254] __sys_sendmsg+0xcd/0x170 [ 8221.557573][ T254] do_syscall_64+0xc6/0x1e0 [ 8221.557573][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8221.557573][ T254] [ 8231.591922][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8231.592574][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.592574][ T254] dst_init+0x84/0x4a0 [ 8231.592574][ T254] dst_alloc+0x97/0x150 [ 8231.592574][ T254] ip6_dst_alloc+0x23/0x90 [ 8231.592574][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8231.592574][ T254] ip6_pol_route+0x56f/0x840 [ 8231.592574][ T254] fib6_rule_lookup+0x334/0x630 [ 8231.592574][ T254] ip6_route_output_flags+0x259/0x480 [ 8231.592574][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8231.592574][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8231.592574][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.592574][ T254] netlink_unicast+0x449/0x710 [ 8231.592574][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.592574][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.592574][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.592574][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.592574][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.592574][ T254] [ 8231.594765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.594765][ T254] netdev_get_by_index+0x5e/0x80 [ 8231.594765][ T254] fib6_nh_init+0x3d8/0x1580 [ 8231.594765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8231.594765][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8231.594765][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8231.594765][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8231.594765][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8231.594765][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8231.594765][ T254] addrconf_dad_begin+0x310/0x670 [ 8231.594765][ T254] addrconf_dad_work+0x10b/0xab0 [ 8231.594765][ T254] process_one_work+0x84d/0x18a0 [ 8231.594765][ T254] worker_thread+0x587/0xd30 [ 8231.594765][ T254] kthread+0x28a/0x350 [ 8231.594765][ T254] ret_from_fork+0x31/0x70 [ 8231.594765][ T254] ret_from_fork_asm+0x1a/0x30 [ 8231.594765][ T254] [ 8231.596904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.596904][ T254] netdev_get_by_index+0x5e/0x80 [ 8231.596904][ T254] fib6_nh_init+0x3d8/0x1580 [ 8231.596904][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8231.596904][ T254] ip6_route_add+0x1c/0x140 [ 8231.596904][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8231.596904][ T254] inet6_addr_add+0x4f8/0xa40 [ 8231.596904][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8231.596904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8231.596904][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.596904][ T254] netlink_unicast+0x449/0x710 [ 8231.596904][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.596904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.596904][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.596904][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.596904][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.596904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8231.596904][ T254] [ 8231.599141][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.599141][ T254] netdev_get_by_index+0x5e/0x80 [ 8231.599141][ T254] fib6_nh_init+0x3d8/0x1580 [ 8231.599141][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8231.599141][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8231.599141][ T254] ipv6_add_addr+0x411/0x2000 [ 8231.599141][ T254] inet6_addr_add+0x30e/0xa40 [ 8231.599141][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8231.599141][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8231.599141][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.599141][ T254] netlink_unicast+0x449/0x710 [ 8231.599141][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.599141][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.599141][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.599141][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.599141][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.599141][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8231.599141][ T254] [ 8231.601409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.601409][ T254] netdev_get_by_index+0x5e/0x80 [ 8231.601409][ T254] fib6_nh_init+0x3d8/0x1580 [ 8231.601409][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8231.601409][ T254] ip6_route_add+0x1c/0x140 [ 8231.601409][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8231.601409][ T254] addrconf_add_dev+0xe2/0x170 [ 8231.601409][ T254] inet6_addr_add+0x12f/0xa40 [ 8231.601409][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8231.601409][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8231.601409][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.601409][ T254] netlink_unicast+0x449/0x710 [ 8231.601409][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.601409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.601409][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.601409][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.601409][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.601409][ T254] [ 8231.603610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.603610][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8231.603610][ T254] ipv6_find_idev+0x102/0x170 [ 8231.603610][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8231.603610][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8231.603610][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.603610][ T254] netlink_unicast+0x449/0x710 [ 8231.603610][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.603610][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.603610][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.603610][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.603610][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.603610][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8231.603610][ T254] [ 8231.605334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8231.605334][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8231.605334][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8231.605334][ T254] ipv6_find_idev+0x102/0x170 [ 8231.605334][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8231.605334][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8231.605334][ T254] netlink_rcv_skb+0x130/0x360 [ 8231.605334][ T254] netlink_unicast+0x449/0x710 [ 8231.605334][ T254] netlink_sendmsg+0x723/0xbe0 [ 8231.605334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8231.605334][ T254] ___sys_sendmsg+0xee/0x170 [ 8231.605334][ T254] __sys_sendmsg+0xcd/0x170 [ 8231.605334][ T254] do_syscall_64+0xc6/0x1e0 [ 8231.605334][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8231.605334][ T254] [ 8241.655960][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8241.656621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.656621][ T254] dst_init+0x84/0x4a0 [ 8241.656621][ T254] dst_alloc+0x97/0x150 [ 8241.656621][ T254] ip6_dst_alloc+0x23/0x90 [ 8241.656621][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8241.656621][ T254] ip6_pol_route+0x56f/0x840 [ 8241.656621][ T254] fib6_rule_lookup+0x334/0x630 [ 8241.656621][ T254] ip6_route_output_flags+0x259/0x480 [ 8241.656621][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8241.656621][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8241.656621][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.656621][ T254] netlink_unicast+0x449/0x710 [ 8241.656621][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.656621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.656621][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.656621][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.656621][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.656621][ T254] [ 8241.658815][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.658815][ T254] netdev_get_by_index+0x5e/0x80 [ 8241.658815][ T254] fib6_nh_init+0x3d8/0x1580 [ 8241.658815][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8241.658815][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8241.658815][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8241.658815][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8241.658815][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8241.658815][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8241.658815][ T254] addrconf_dad_begin+0x310/0x670 [ 8241.658815][ T254] addrconf_dad_work+0x10b/0xab0 [ 8241.658815][ T254] process_one_work+0x84d/0x18a0 [ 8241.658815][ T254] worker_thread+0x587/0xd30 [ 8241.658815][ T254] kthread+0x28a/0x350 [ 8241.658815][ T254] ret_from_fork+0x31/0x70 [ 8241.658815][ T254] ret_from_fork_asm+0x1a/0x30 [ 8241.658815][ T254] [ 8241.660973][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.660973][ T254] netdev_get_by_index+0x5e/0x80 [ 8241.660973][ T254] fib6_nh_init+0x3d8/0x1580 [ 8241.660973][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8241.660973][ T254] ip6_route_add+0x1c/0x140 [ 8241.660973][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8241.660973][ T254] inet6_addr_add+0x4f8/0xa40 [ 8241.660973][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8241.660973][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8241.660973][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.660973][ T254] netlink_unicast+0x449/0x710 [ 8241.660973][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.660973][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.660973][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.660973][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.660973][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.660973][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8241.660973][ T254] [ 8241.663222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.663222][ T254] netdev_get_by_index+0x5e/0x80 [ 8241.663222][ T254] fib6_nh_init+0x3d8/0x1580 [ 8241.663222][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8241.663222][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8241.663222][ T254] ipv6_add_addr+0x411/0x2000 [ 8241.663222][ T254] inet6_addr_add+0x30e/0xa40 [ 8241.663222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8241.663222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8241.663222][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.663222][ T254] netlink_unicast+0x449/0x710 [ 8241.663222][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.663222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.663222][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.663222][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.663222][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.663222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8241.663222][ T254] [ 8241.665455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.665455][ T254] netdev_get_by_index+0x5e/0x80 [ 8241.665455][ T254] fib6_nh_init+0x3d8/0x1580 [ 8241.665455][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8241.665455][ T254] ip6_route_add+0x1c/0x140 [ 8241.665455][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8241.665455][ T254] addrconf_add_dev+0xe2/0x170 [ 8241.665455][ T254] inet6_addr_add+0x12f/0xa40 [ 8241.665455][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8241.665455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8241.665455][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.665455][ T254] netlink_unicast+0x449/0x710 [ 8241.665455][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.665455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.665455][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.665455][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.665455][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.665455][ T254] [ 8241.667651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.667651][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8241.667651][ T254] ipv6_find_idev+0x102/0x170 [ 8241.667651][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8241.667651][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8241.667651][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.667651][ T254] netlink_unicast+0x449/0x710 [ 8241.667651][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.667651][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.667651][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.667651][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.667651][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.667651][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8241.667651][ T254] [ 8241.669388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8241.669388][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8241.669388][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8241.669388][ T254] ipv6_find_idev+0x102/0x170 [ 8241.669388][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8241.669388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8241.669388][ T254] netlink_rcv_skb+0x130/0x360 [ 8241.669388][ T254] netlink_unicast+0x449/0x710 [ 8241.669388][ T254] netlink_sendmsg+0x723/0xbe0 [ 8241.669388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8241.669388][ T254] ___sys_sendmsg+0xee/0x170 [ 8241.669388][ T254] __sys_sendmsg+0xcd/0x170 [ 8241.669388][ T254] do_syscall_64+0xc6/0x1e0 [ 8241.669388][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8241.669388][ T254] [ 8251.863856][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8251.864596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.864596][ T254] dst_init+0x84/0x4a0 [ 8251.864596][ T254] dst_alloc+0x97/0x150 [ 8251.864596][ T254] ip6_dst_alloc+0x23/0x90 [ 8251.864596][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8251.864596][ T254] ip6_pol_route+0x56f/0x840 [ 8251.864596][ T254] fib6_rule_lookup+0x334/0x630 [ 8251.864596][ T254] ip6_route_output_flags+0x259/0x480 [ 8251.864596][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8251.864596][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8251.864596][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.864596][ T254] netlink_unicast+0x449/0x710 [ 8251.864596][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.864596][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.864596][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.864596][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.864596][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.864596][ T254] [ 8251.866843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.866843][ T254] netdev_get_by_index+0x5e/0x80 [ 8251.866843][ T254] fib6_nh_init+0x3d8/0x1580 [ 8251.866843][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8251.866843][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8251.866843][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8251.866843][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8251.866843][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8251.866843][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8251.866843][ T254] addrconf_dad_begin+0x310/0x670 [ 8251.866843][ T254] addrconf_dad_work+0x10b/0xab0 [ 8251.866843][ T254] process_one_work+0x84d/0x18a0 [ 8251.866843][ T254] worker_thread+0x587/0xd30 [ 8251.866843][ T254] kthread+0x28a/0x350 [ 8251.866843][ T254] ret_from_fork+0x31/0x70 [ 8251.866843][ T254] ret_from_fork_asm+0x1a/0x30 [ 8251.866843][ T254] [ 8251.869058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.869058][ T254] netdev_get_by_index+0x5e/0x80 [ 8251.869058][ T254] fib6_nh_init+0x3d8/0x1580 [ 8251.869058][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8251.869058][ T254] ip6_route_add+0x1c/0x140 [ 8251.869058][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8251.869058][ T254] inet6_addr_add+0x4f8/0xa40 [ 8251.869058][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8251.869058][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8251.869058][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.869058][ T254] netlink_unicast+0x449/0x710 [ 8251.869058][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.869058][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.869058][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.869058][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.869058][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.869058][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8251.869058][ T254] [ 8251.871403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.871403][ T254] netdev_get_by_index+0x5e/0x80 [ 8251.871403][ T254] fib6_nh_init+0x3d8/0x1580 [ 8251.871403][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8251.871403][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8251.871403][ T254] ipv6_add_addr+0x411/0x2000 [ 8251.871403][ T254] inet6_addr_add+0x30e/0xa40 [ 8251.871403][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8251.871403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8251.871403][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.871403][ T254] netlink_unicast+0x449/0x710 [ 8251.871403][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.871403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.871403][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.871403][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.871403][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.871403][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8251.871403][ T254] [ 8251.873730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.873730][ T254] netdev_get_by_index+0x5e/0x80 [ 8251.873730][ T254] fib6_nh_init+0x3d8/0x1580 [ 8251.873730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8251.873730][ T254] ip6_route_add+0x1c/0x140 [ 8251.873730][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8251.873730][ T254] addrconf_add_dev+0xe2/0x170 [ 8251.873730][ T254] inet6_addr_add+0x12f/0xa40 [ 8251.873730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8251.873730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8251.873730][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.873730][ T254] netlink_unicast+0x449/0x710 [ 8251.873730][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.873730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.873730][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.873730][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.873730][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.873730][ T254] [ 8251.875962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.875962][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8251.875962][ T254] ipv6_find_idev+0x102/0x170 [ 8251.875962][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8251.875962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8251.875962][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.875962][ T254] netlink_unicast+0x449/0x710 [ 8251.875962][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.875962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.875962][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.875962][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.875962][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.875962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8251.875962][ T254] [ 8251.877855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8251.877855][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8251.877855][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8251.877855][ T254] ipv6_find_idev+0x102/0x170 [ 8251.877855][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8251.877855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8251.877855][ T254] netlink_rcv_skb+0x130/0x360 [ 8251.877855][ T254] netlink_unicast+0x449/0x710 [ 8251.877855][ T254] netlink_sendmsg+0x723/0xbe0 [ 8251.877855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8251.877855][ T254] ___sys_sendmsg+0xee/0x170 [ 8251.877855][ T254] __sys_sendmsg+0xcd/0x170 [ 8251.877855][ T254] do_syscall_64+0xc6/0x1e0 [ 8251.877855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8251.877855][ T254] [ 8262.119962][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8262.120683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.120683][ T254] dst_init+0x84/0x4a0 [ 8262.120683][ T254] dst_alloc+0x97/0x150 [ 8262.120683][ T254] ip6_dst_alloc+0x23/0x90 [ 8262.120683][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8262.120683][ T254] ip6_pol_route+0x56f/0x840 [ 8262.120683][ T254] fib6_rule_lookup+0x334/0x630 [ 8262.120683][ T254] ip6_route_output_flags+0x259/0x480 [ 8262.120683][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8262.120683][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8262.120683][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.120683][ T254] netlink_unicast+0x449/0x710 [ 8262.120683][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.120683][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.120683][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.120683][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.120683][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.120683][ T254] [ 8262.122959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.122959][ T254] netdev_get_by_index+0x5e/0x80 [ 8262.122959][ T254] fib6_nh_init+0x3d8/0x1580 [ 8262.122959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8262.122959][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8262.122959][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8262.122959][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8262.122959][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8262.122959][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8262.122959][ T254] addrconf_dad_begin+0x310/0x670 [ 8262.122959][ T254] addrconf_dad_work+0x10b/0xab0 [ 8262.122959][ T254] process_one_work+0x84d/0x18a0 [ 8262.122959][ T254] worker_thread+0x587/0xd30 [ 8262.122959][ T254] kthread+0x28a/0x350 [ 8262.122959][ T254] ret_from_fork+0x31/0x70 [ 8262.122959][ T254] ret_from_fork_asm+0x1a/0x30 [ 8262.122959][ T254] [ 8262.125244][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.125244][ T254] netdev_get_by_index+0x5e/0x80 [ 8262.125244][ T254] fib6_nh_init+0x3d8/0x1580 [ 8262.125244][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8262.125244][ T254] ip6_route_add+0x1c/0x140 [ 8262.125244][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8262.125244][ T254] inet6_addr_add+0x4f8/0xa40 [ 8262.125244][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8262.125244][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8262.125244][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.125244][ T254] netlink_unicast+0x449/0x710 [ 8262.125244][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.125244][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.125244][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.125244][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.125244][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.125244][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8262.125244][ T254] [ 8262.127578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.127578][ T254] netdev_get_by_index+0x5e/0x80 [ 8262.127578][ T254] fib6_nh_init+0x3d8/0x1580 [ 8262.127578][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8262.127578][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8262.127578][ T254] ipv6_add_addr+0x411/0x2000 [ 8262.127578][ T254] inet6_addr_add+0x30e/0xa40 [ 8262.127578][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8262.127578][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8262.127578][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.127578][ T254] netlink_unicast+0x449/0x710 [ 8262.127578][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.127578][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.127578][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.127578][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.127578][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.127578][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8262.127578][ T254] [ 8262.129903][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.129903][ T254] netdev_get_by_index+0x5e/0x80 [ 8262.129903][ T254] fib6_nh_init+0x3d8/0x1580 [ 8262.129903][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8262.129903][ T254] ip6_route_add+0x1c/0x140 [ 8262.129903][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8262.129903][ T254] addrconf_add_dev+0xe2/0x170 [ 8262.129903][ T254] inet6_addr_add+0x12f/0xa40 [ 8262.129903][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8262.129903][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8262.129903][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.129903][ T254] netlink_unicast+0x449/0x710 [ 8262.129903][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.129903][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.129903][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.129903][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.129903][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.129903][ T254] [ 8262.132139][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.132139][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8262.132139][ T254] ipv6_find_idev+0x102/0x170 [ 8262.132139][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8262.132139][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8262.132139][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.132139][ T254] netlink_unicast+0x449/0x710 [ 8262.132139][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.132139][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.132139][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.132139][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.132139][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.132139][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8262.132139][ T254] [ 8262.133882][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8262.133882][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8262.133882][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8262.133882][ T254] ipv6_find_idev+0x102/0x170 [ 8262.133882][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8262.133882][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8262.133882][ T254] netlink_rcv_skb+0x130/0x360 [ 8262.133882][ T254] netlink_unicast+0x449/0x710 [ 8262.133882][ T254] netlink_sendmsg+0x723/0xbe0 [ 8262.133882][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8262.133882][ T254] ___sys_sendmsg+0xee/0x170 [ 8262.133882][ T254] __sys_sendmsg+0xcd/0x170 [ 8262.133882][ T254] do_syscall_64+0xc6/0x1e0 [ 8262.133882][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8262.133882][ T254] [ 8272.383869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8272.384343][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.384343][ T254] dst_init+0x84/0x4a0 [ 8272.384343][ T254] dst_alloc+0x97/0x150 [ 8272.384343][ T254] ip6_dst_alloc+0x23/0x90 [ 8272.384343][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8272.384343][ T254] ip6_pol_route+0x56f/0x840 [ 8272.384343][ T254] fib6_rule_lookup+0x334/0x630 [ 8272.384343][ T254] ip6_route_output_flags+0x259/0x480 [ 8272.384343][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8272.384343][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8272.384343][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.384343][ T254] netlink_unicast+0x449/0x710 [ 8272.384343][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.384343][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.384343][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.384343][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.384343][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.384343][ T254] [ 8272.386543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.386543][ T254] netdev_get_by_index+0x5e/0x80 [ 8272.386543][ T254] fib6_nh_init+0x3d8/0x1580 [ 8272.386543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8272.386543][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8272.386543][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8272.386543][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8272.386543][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8272.386543][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8272.386543][ T254] addrconf_dad_begin+0x310/0x670 [ 8272.386543][ T254] addrconf_dad_work+0x10b/0xab0 [ 8272.386543][ T254] process_one_work+0x84d/0x18a0 [ 8272.386543][ T254] worker_thread+0x587/0xd30 [ 8272.386543][ T254] kthread+0x28a/0x350 [ 8272.386543][ T254] ret_from_fork+0x31/0x70 [ 8272.386543][ T254] ret_from_fork_asm+0x1a/0x30 [ 8272.386543][ T254] [ 8272.388680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.388680][ T254] netdev_get_by_index+0x5e/0x80 [ 8272.388680][ T254] fib6_nh_init+0x3d8/0x1580 [ 8272.388680][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8272.388680][ T254] ip6_route_add+0x1c/0x140 [ 8272.388680][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8272.388680][ T254] inet6_addr_add+0x4f8/0xa40 [ 8272.388680][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8272.388680][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8272.388680][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.388680][ T254] netlink_unicast+0x449/0x710 [ 8272.388680][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.388680][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.388680][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.388680][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.388680][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.388680][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8272.388680][ T254] [ 8272.390938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.390938][ T254] netdev_get_by_index+0x5e/0x80 [ 8272.390938][ T254] fib6_nh_init+0x3d8/0x1580 [ 8272.390938][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8272.390938][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8272.390938][ T254] ipv6_add_addr+0x411/0x2000 [ 8272.390938][ T254] inet6_addr_add+0x30e/0xa40 [ 8272.390938][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8272.390938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8272.390938][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.390938][ T254] netlink_unicast+0x449/0x710 [ 8272.390938][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.390938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.390938][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.390938][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.390938][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.390938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8272.390938][ T254] [ 8272.393176][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.393176][ T254] netdev_get_by_index+0x5e/0x80 [ 8272.393176][ T254] fib6_nh_init+0x3d8/0x1580 [ 8272.393176][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8272.393176][ T254] ip6_route_add+0x1c/0x140 [ 8272.393176][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8272.393176][ T254] addrconf_add_dev+0xe2/0x170 [ 8272.393176][ T254] inet6_addr_add+0x12f/0xa40 [ 8272.393176][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8272.393176][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8272.393176][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.393176][ T254] netlink_unicast+0x449/0x710 [ 8272.393176][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.393176][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.393176][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.393176][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.393176][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.393176][ T254] [ 8272.395375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.395375][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8272.395375][ T254] ipv6_find_idev+0x102/0x170 [ 8272.395375][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8272.395375][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8272.395375][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.395375][ T254] netlink_unicast+0x449/0x710 [ 8272.395375][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.395375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.395375][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.395375][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.395375][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.395375][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8272.395375][ T254] [ 8272.397115][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8272.397115][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8272.397115][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8272.397115][ T254] ipv6_find_idev+0x102/0x170 [ 8272.397115][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8272.397115][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8272.397115][ T254] netlink_rcv_skb+0x130/0x360 [ 8272.397115][ T254] netlink_unicast+0x449/0x710 [ 8272.397115][ T254] netlink_sendmsg+0x723/0xbe0 [ 8272.397115][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8272.397115][ T254] ___sys_sendmsg+0xee/0x170 [ 8272.397115][ T254] __sys_sendmsg+0xcd/0x170 [ 8272.397115][ T254] do_syscall_64+0xc6/0x1e0 [ 8272.397115][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8272.397115][ T254] [ 8282.647804][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8282.648419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.648419][ T254] dst_init+0x84/0x4a0 [ 8282.648419][ T254] dst_alloc+0x97/0x150 [ 8282.648419][ T254] ip6_dst_alloc+0x23/0x90 [ 8282.648419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8282.648419][ T254] ip6_pol_route+0x56f/0x840 [ 8282.648419][ T254] fib6_rule_lookup+0x334/0x630 [ 8282.648419][ T254] ip6_route_output_flags+0x259/0x480 [ 8282.648419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8282.648419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8282.648419][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.648419][ T254] netlink_unicast+0x449/0x710 [ 8282.648419][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.648419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.648419][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.648419][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.648419][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.648419][ T254] [ 8282.651975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.651975][ T254] netdev_get_by_index+0x5e/0x80 [ 8282.651975][ T254] fib6_nh_init+0x3d8/0x1580 [ 8282.651975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8282.651975][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8282.651975][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8282.651975][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8282.651975][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8282.651975][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8282.651975][ T254] addrconf_dad_begin+0x310/0x670 [ 8282.651975][ T254] addrconf_dad_work+0x10b/0xab0 [ 8282.651975][ T254] process_one_work+0x84d/0x18a0 [ 8282.651975][ T254] worker_thread+0x587/0xd30 [ 8282.651975][ T254] kthread+0x28a/0x350 [ 8282.651975][ T254] ret_from_fork+0x31/0x70 [ 8282.651975][ T254] ret_from_fork_asm+0x1a/0x30 [ 8282.651975][ T254] [ 8282.655482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.655482][ T254] netdev_get_by_index+0x5e/0x80 [ 8282.655482][ T254] fib6_nh_init+0x3d8/0x1580 [ 8282.655482][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8282.655482][ T254] ip6_route_add+0x1c/0x140 [ 8282.655482][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8282.655482][ T254] inet6_addr_add+0x4f8/0xa40 [ 8282.655482][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8282.655482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8282.655482][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.655482][ T254] netlink_unicast+0x449/0x710 [ 8282.655482][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.655482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.655482][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.655482][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.655482][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.655482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8282.655482][ T254] [ 8282.659137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.659137][ T254] netdev_get_by_index+0x5e/0x80 [ 8282.659137][ T254] fib6_nh_init+0x3d8/0x1580 [ 8282.659137][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8282.659137][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8282.659137][ T254] ipv6_add_addr+0x411/0x2000 [ 8282.659137][ T254] inet6_addr_add+0x30e/0xa40 [ 8282.659137][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8282.659137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8282.659137][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.659137][ T254] netlink_unicast+0x449/0x710 [ 8282.659137][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.659137][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.659137][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.659137][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.659137][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.659137][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8282.659137][ T254] [ 8282.662791][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.662791][ T254] netdev_get_by_index+0x5e/0x80 [ 8282.662791][ T254] fib6_nh_init+0x3d8/0x1580 [ 8282.662791][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8282.662791][ T254] ip6_route_add+0x1c/0x140 [ 8282.662791][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8282.662791][ T254] addrconf_add_dev+0xe2/0x170 [ 8282.662791][ T254] inet6_addr_add+0x12f/0xa40 [ 8282.662791][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8282.662791][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8282.662791][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.662791][ T254] netlink_unicast+0x449/0x710 [ 8282.662791][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.662791][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.662791][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.662791][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.662791][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.662791][ T254] [ 8282.666371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.666371][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8282.666371][ T254] ipv6_find_idev+0x102/0x170 [ 8282.666371][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8282.666371][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8282.666371][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.666371][ T254] netlink_unicast+0x449/0x710 [ 8282.666371][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.666371][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.666371][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.666371][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.666371][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.666371][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8282.666371][ T254] [ 8282.669194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8282.669194][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8282.669194][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8282.669194][ T254] ipv6_find_idev+0x102/0x170 [ 8282.669194][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8282.669194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8282.669194][ T254] netlink_rcv_skb+0x130/0x360 [ 8282.669194][ T254] netlink_unicast+0x449/0x710 [ 8282.669194][ T254] netlink_sendmsg+0x723/0xbe0 [ 8282.669194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8282.669194][ T254] ___sys_sendmsg+0xee/0x170 [ 8282.669194][ T254] __sys_sendmsg+0xcd/0x170 [ 8282.669194][ T254] do_syscall_64+0xc6/0x1e0 [ 8282.669194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8282.669194][ T254] [ 8292.847846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8292.848329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.848329][ T254] dst_init+0x84/0x4a0 [ 8292.848329][ T254] dst_alloc+0x97/0x150 [ 8292.848329][ T254] ip6_dst_alloc+0x23/0x90 [ 8292.848329][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8292.848329][ T254] ip6_pol_route+0x56f/0x840 [ 8292.848329][ T254] fib6_rule_lookup+0x334/0x630 [ 8292.848329][ T254] ip6_route_output_flags+0x259/0x480 [ 8292.848329][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8292.848329][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8292.848329][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.848329][ T254] netlink_unicast+0x449/0x710 [ 8292.848329][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.848329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.848329][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.848329][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.848329][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.848329][ T254] [ 8292.850543][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.850543][ T254] netdev_get_by_index+0x5e/0x80 [ 8292.850543][ T254] fib6_nh_init+0x3d8/0x1580 [ 8292.850543][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8292.850543][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8292.850543][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8292.850543][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8292.850543][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8292.850543][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8292.850543][ T254] addrconf_dad_begin+0x310/0x670 [ 8292.850543][ T254] addrconf_dad_work+0x10b/0xab0 [ 8292.850543][ T254] process_one_work+0x84d/0x18a0 [ 8292.850543][ T254] worker_thread+0x587/0xd30 [ 8292.850543][ T254] kthread+0x28a/0x350 [ 8292.850543][ T254] ret_from_fork+0x31/0x70 [ 8292.850543][ T254] ret_from_fork_asm+0x1a/0x30 [ 8292.850543][ T254] [ 8292.852691][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.852691][ T254] netdev_get_by_index+0x5e/0x80 [ 8292.852691][ T254] fib6_nh_init+0x3d8/0x1580 [ 8292.852691][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8292.852691][ T254] ip6_route_add+0x1c/0x140 [ 8292.852691][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8292.852691][ T254] inet6_addr_add+0x4f8/0xa40 [ 8292.852691][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8292.852691][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8292.852691][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.852691][ T254] netlink_unicast+0x449/0x710 [ 8292.852691][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.852691][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.852691][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.852691][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.852691][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.852691][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8292.852691][ T254] [ 8292.854939][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.854939][ T254] netdev_get_by_index+0x5e/0x80 [ 8292.854939][ T254] fib6_nh_init+0x3d8/0x1580 [ 8292.854939][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8292.854939][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8292.854939][ T254] ipv6_add_addr+0x411/0x2000 [ 8292.854939][ T254] inet6_addr_add+0x30e/0xa40 [ 8292.854939][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8292.854939][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8292.854939][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.854939][ T254] netlink_unicast+0x449/0x710 [ 8292.854939][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.854939][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.854939][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.854939][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.854939][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.854939][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8292.854939][ T254] [ 8292.857183][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.857183][ T254] netdev_get_by_index+0x5e/0x80 [ 8292.857183][ T254] fib6_nh_init+0x3d8/0x1580 [ 8292.857183][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8292.857183][ T254] ip6_route_add+0x1c/0x140 [ 8292.857183][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8292.857183][ T254] addrconf_add_dev+0xe2/0x170 [ 8292.857183][ T254] inet6_addr_add+0x12f/0xa40 [ 8292.857183][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8292.857183][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8292.857183][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.857183][ T254] netlink_unicast+0x449/0x710 [ 8292.857183][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.857183][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.857183][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.857183][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.857183][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.857183][ T254] [ 8292.859390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.859390][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8292.859390][ T254] ipv6_find_idev+0x102/0x170 [ 8292.859390][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8292.859390][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8292.859390][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.859390][ T254] netlink_unicast+0x449/0x710 [ 8292.859390][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.859390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.859390][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.859390][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.859390][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.859390][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8292.859390][ T254] [ 8292.861112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8292.861112][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8292.861112][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8292.861112][ T254] ipv6_find_idev+0x102/0x170 [ 8292.861112][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8292.861112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8292.861112][ T254] netlink_rcv_skb+0x130/0x360 [ 8292.861112][ T254] netlink_unicast+0x449/0x710 [ 8292.861112][ T254] netlink_sendmsg+0x723/0xbe0 [ 8292.861112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8292.861112][ T254] ___sys_sendmsg+0xee/0x170 [ 8292.861112][ T254] __sys_sendmsg+0xcd/0x170 [ 8292.861112][ T254] do_syscall_64+0xc6/0x1e0 [ 8292.861112][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8292.861112][ T254] [ 8303.103858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8303.104406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.104406][ T254] dst_init+0x84/0x4a0 [ 8303.104406][ T254] dst_alloc+0x97/0x150 [ 8303.104406][ T254] ip6_dst_alloc+0x23/0x90 [ 8303.104406][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8303.104406][ T254] ip6_pol_route+0x56f/0x840 [ 8303.104406][ T254] fib6_rule_lookup+0x334/0x630 [ 8303.104406][ T254] ip6_route_output_flags+0x259/0x480 [ 8303.104406][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8303.104406][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8303.104406][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.104406][ T254] netlink_unicast+0x449/0x710 [ 8303.104406][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.104406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.104406][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.104406][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.104406][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.104406][ T254] [ 8303.106643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.106643][ T254] netdev_get_by_index+0x5e/0x80 [ 8303.106643][ T254] fib6_nh_init+0x3d8/0x1580 [ 8303.106643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8303.106643][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8303.106643][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8303.106643][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8303.106643][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8303.106643][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8303.106643][ T254] addrconf_dad_begin+0x310/0x670 [ 8303.106643][ T254] addrconf_dad_work+0x10b/0xab0 [ 8303.106643][ T254] process_one_work+0x84d/0x18a0 [ 8303.106643][ T254] worker_thread+0x587/0xd30 [ 8303.106643][ T254] kthread+0x28a/0x350 [ 8303.106643][ T254] ret_from_fork+0x31/0x70 [ 8303.106643][ T254] ret_from_fork_asm+0x1a/0x30 [ 8303.106643][ T254] [ 8303.108806][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.108806][ T254] netdev_get_by_index+0x5e/0x80 [ 8303.108806][ T254] fib6_nh_init+0x3d8/0x1580 [ 8303.108806][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8303.108806][ T254] ip6_route_add+0x1c/0x140 [ 8303.108806][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8303.108806][ T254] inet6_addr_add+0x4f8/0xa40 [ 8303.108806][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8303.108806][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8303.108806][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.108806][ T254] netlink_unicast+0x449/0x710 [ 8303.108806][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.108806][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.108806][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.108806][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.108806][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.108806][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8303.108806][ T254] [ 8303.111080][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.111080][ T254] netdev_get_by_index+0x5e/0x80 [ 8303.111080][ T254] fib6_nh_init+0x3d8/0x1580 [ 8303.111080][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8303.111080][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8303.111080][ T254] ipv6_add_addr+0x411/0x2000 [ 8303.111080][ T254] inet6_addr_add+0x30e/0xa40 [ 8303.111080][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8303.111080][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8303.111080][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.111080][ T254] netlink_unicast+0x449/0x710 [ 8303.111080][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.111080][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.111080][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.111080][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.111080][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.111080][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8303.111080][ T254] [ 8303.113334][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.113334][ T254] netdev_get_by_index+0x5e/0x80 [ 8303.113334][ T254] fib6_nh_init+0x3d8/0x1580 [ 8303.113334][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8303.113334][ T254] ip6_route_add+0x1c/0x140 [ 8303.113334][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8303.113334][ T254] addrconf_add_dev+0xe2/0x170 [ 8303.113334][ T254] inet6_addr_add+0x12f/0xa40 [ 8303.113334][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8303.113334][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8303.113334][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.113334][ T254] netlink_unicast+0x449/0x710 [ 8303.113334][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.113334][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.113334][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.113334][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.113334][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.113334][ T254] [ 8303.115550][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.115550][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8303.115550][ T254] ipv6_find_idev+0x102/0x170 [ 8303.115550][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8303.115550][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8303.115550][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.115550][ T254] netlink_unicast+0x449/0x710 [ 8303.115550][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.115550][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.115550][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.115550][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.115550][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.115550][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8303.115550][ T254] [ 8303.117292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8303.117292][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8303.117292][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8303.117292][ T254] ipv6_find_idev+0x102/0x170 [ 8303.117292][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8303.117292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8303.117292][ T254] netlink_rcv_skb+0x130/0x360 [ 8303.117292][ T254] netlink_unicast+0x449/0x710 [ 8303.117292][ T254] netlink_sendmsg+0x723/0xbe0 [ 8303.117292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8303.117292][ T254] ___sys_sendmsg+0xee/0x170 [ 8303.117292][ T254] __sys_sendmsg+0xcd/0x170 [ 8303.117292][ T254] do_syscall_64+0xc6/0x1e0 [ 8303.117292][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8303.117292][ T254] [ 8313.239808][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8313.240295][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.240295][ T254] dst_init+0x84/0x4a0 [ 8313.240295][ T254] dst_alloc+0x97/0x150 [ 8313.240295][ T254] ip6_dst_alloc+0x23/0x90 [ 8313.240295][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8313.240295][ T254] ip6_pol_route+0x56f/0x840 [ 8313.240295][ T254] fib6_rule_lookup+0x334/0x630 [ 8313.240295][ T254] ip6_route_output_flags+0x259/0x480 [ 8313.240295][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8313.240295][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8313.240295][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.240295][ T254] netlink_unicast+0x449/0x710 [ 8313.240295][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.240295][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.240295][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.240295][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.240295][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.240295][ T254] [ 8313.242489][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.242489][ T254] netdev_get_by_index+0x5e/0x80 [ 8313.242489][ T254] fib6_nh_init+0x3d8/0x1580 [ 8313.242489][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8313.242489][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8313.242489][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8313.242489][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8313.242489][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8313.242489][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8313.242489][ T254] addrconf_dad_begin+0x310/0x670 [ 8313.242489][ T254] addrconf_dad_work+0x10b/0xab0 [ 8313.242489][ T254] process_one_work+0x84d/0x18a0 [ 8313.242489][ T254] worker_thread+0x587/0xd30 [ 8313.242489][ T254] kthread+0x28a/0x350 [ 8313.242489][ T254] ret_from_fork+0x31/0x70 [ 8313.242489][ T254] ret_from_fork_asm+0x1a/0x30 [ 8313.242489][ T254] [ 8313.244628][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.244628][ T254] netdev_get_by_index+0x5e/0x80 [ 8313.244628][ T254] fib6_nh_init+0x3d8/0x1580 [ 8313.244628][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8313.244628][ T254] ip6_route_add+0x1c/0x140 [ 8313.244628][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8313.244628][ T254] inet6_addr_add+0x4f8/0xa40 [ 8313.244628][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8313.244628][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8313.244628][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.244628][ T254] netlink_unicast+0x449/0x710 [ 8313.244628][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.244628][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.244628][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.244628][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.244628][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.244628][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8313.244628][ T254] [ 8313.246868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.246868][ T254] netdev_get_by_index+0x5e/0x80 [ 8313.246868][ T254] fib6_nh_init+0x3d8/0x1580 [ 8313.246868][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8313.246868][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8313.246868][ T254] ipv6_add_addr+0x411/0x2000 [ 8313.246868][ T254] inet6_addr_add+0x30e/0xa40 [ 8313.246868][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8313.246868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8313.246868][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.246868][ T254] netlink_unicast+0x449/0x710 [ 8313.246868][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.246868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.246868][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.246868][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.246868][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.246868][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8313.246868][ T254] [ 8313.249111][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.249111][ T254] netdev_get_by_index+0x5e/0x80 [ 8313.249111][ T254] fib6_nh_init+0x3d8/0x1580 [ 8313.249111][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8313.249111][ T254] ip6_route_add+0x1c/0x140 [ 8313.249111][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8313.249111][ T254] addrconf_add_dev+0xe2/0x170 [ 8313.249111][ T254] inet6_addr_add+0x12f/0xa40 [ 8313.249111][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8313.249111][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8313.249111][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.249111][ T254] netlink_unicast+0x449/0x710 [ 8313.249111][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.249111][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.249111][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.249111][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.249111][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.249111][ T254] [ 8313.251303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.251303][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8313.251303][ T254] ipv6_find_idev+0x102/0x170 [ 8313.251303][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8313.251303][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8313.251303][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.251303][ T254] netlink_unicast+0x449/0x710 [ 8313.251303][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.251303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.251303][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.251303][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.251303][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.251303][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8313.251303][ T254] [ 8313.253018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8313.253018][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8313.253018][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8313.253018][ T254] ipv6_find_idev+0x102/0x170 [ 8313.253018][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8313.253018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8313.253018][ T254] netlink_rcv_skb+0x130/0x360 [ 8313.253018][ T254] netlink_unicast+0x449/0x710 [ 8313.253018][ T254] netlink_sendmsg+0x723/0xbe0 [ 8313.253018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8313.253018][ T254] ___sys_sendmsg+0xee/0x170 [ 8313.253018][ T254] __sys_sendmsg+0xcd/0x170 [ 8313.253018][ T254] do_syscall_64+0xc6/0x1e0 [ 8313.253018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8313.253018][ T254] [ 8323.495871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8323.496351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.496351][ T254] dst_init+0x84/0x4a0 [ 8323.496351][ T254] dst_alloc+0x97/0x150 [ 8323.496351][ T254] ip6_dst_alloc+0x23/0x90 [ 8323.496351][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8323.496351][ T254] ip6_pol_route+0x56f/0x840 [ 8323.496351][ T254] fib6_rule_lookup+0x334/0x630 [ 8323.496351][ T254] ip6_route_output_flags+0x259/0x480 [ 8323.496351][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8323.496351][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8323.496351][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.496351][ T254] netlink_unicast+0x449/0x710 [ 8323.496351][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.496351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.496351][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.496351][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.496351][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.496351][ T254] [ 8323.498542][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.498542][ T254] netdev_get_by_index+0x5e/0x80 [ 8323.498542][ T254] fib6_nh_init+0x3d8/0x1580 [ 8323.498542][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8323.498542][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8323.498542][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8323.498542][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8323.498542][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8323.498542][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8323.498542][ T254] addrconf_dad_begin+0x310/0x670 [ 8323.498542][ T254] addrconf_dad_work+0x10b/0xab0 [ 8323.498542][ T254] process_one_work+0x84d/0x18a0 [ 8323.498542][ T254] worker_thread+0x587/0xd30 [ 8323.498542][ T254] kthread+0x28a/0x350 [ 8323.498542][ T254] ret_from_fork+0x31/0x70 [ 8323.498542][ T254] ret_from_fork_asm+0x1a/0x30 [ 8323.498542][ T254] [ 8323.500694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.500694][ T254] netdev_get_by_index+0x5e/0x80 [ 8323.500694][ T254] fib6_nh_init+0x3d8/0x1580 [ 8323.500694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8323.500694][ T254] ip6_route_add+0x1c/0x140 [ 8323.500694][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8323.500694][ T254] inet6_addr_add+0x4f8/0xa40 [ 8323.500694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8323.500694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8323.500694][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.500694][ T254] netlink_unicast+0x449/0x710 [ 8323.500694][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.500694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.500694][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.500694][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.500694][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.500694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8323.500694][ T254] [ 8323.502931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.502931][ T254] netdev_get_by_index+0x5e/0x80 [ 8323.502931][ T254] fib6_nh_init+0x3d8/0x1580 [ 8323.502931][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8323.502931][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8323.502931][ T254] ipv6_add_addr+0x411/0x2000 [ 8323.502931][ T254] inet6_addr_add+0x30e/0xa40 [ 8323.502931][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8323.502931][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8323.502931][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.502931][ T254] netlink_unicast+0x449/0x710 [ 8323.502931][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.502931][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.502931][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.502931][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.502931][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.502931][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8323.502931][ T254] [ 8323.505168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.505168][ T254] netdev_get_by_index+0x5e/0x80 [ 8323.505168][ T254] fib6_nh_init+0x3d8/0x1580 [ 8323.505168][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8323.505168][ T254] ip6_route_add+0x1c/0x140 [ 8323.505168][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8323.505168][ T254] addrconf_add_dev+0xe2/0x170 [ 8323.505168][ T254] inet6_addr_add+0x12f/0xa40 [ 8323.505168][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8323.505168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8323.505168][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.505168][ T254] netlink_unicast+0x449/0x710 [ 8323.505168][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.505168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.505168][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.505168][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.505168][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.505168][ T254] [ 8323.507364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.507364][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8323.507364][ T254] ipv6_find_idev+0x102/0x170 [ 8323.507364][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8323.507364][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8323.507364][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.507364][ T254] netlink_unicast+0x449/0x710 [ 8323.507364][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.507364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.507364][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.507364][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.507364][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.507364][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8323.507364][ T254] [ 8323.509093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8323.509093][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8323.509093][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8323.509093][ T254] ipv6_find_idev+0x102/0x170 [ 8323.509093][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8323.509093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8323.509093][ T254] netlink_rcv_skb+0x130/0x360 [ 8323.509093][ T254] netlink_unicast+0x449/0x710 [ 8323.509093][ T254] netlink_sendmsg+0x723/0xbe0 [ 8323.509093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8323.509093][ T254] ___sys_sendmsg+0xee/0x170 [ 8323.509093][ T254] __sys_sendmsg+0xcd/0x170 [ 8323.509093][ T254] do_syscall_64+0xc6/0x1e0 [ 8323.509093][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8323.509093][ T254] [ 8333.751913][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8333.752703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.752703][ T254] dst_init+0x84/0x4a0 [ 8333.752703][ T254] dst_alloc+0x97/0x150 [ 8333.752703][ T254] ip6_dst_alloc+0x23/0x90 [ 8333.752703][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8333.752703][ T254] ip6_pol_route+0x56f/0x840 [ 8333.752703][ T254] fib6_rule_lookup+0x334/0x630 [ 8333.752703][ T254] ip6_route_output_flags+0x259/0x480 [ 8333.752703][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8333.752703][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8333.752703][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.752703][ T254] netlink_unicast+0x449/0x710 [ 8333.752703][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.752703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.752703][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.752703][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.752703][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.752703][ T254] [ 8333.754975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.754975][ T254] netdev_get_by_index+0x5e/0x80 [ 8333.754975][ T254] fib6_nh_init+0x3d8/0x1580 [ 8333.754975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8333.754975][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8333.754975][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8333.754975][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8333.754975][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8333.754975][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8333.754975][ T254] addrconf_dad_begin+0x310/0x670 [ 8333.754975][ T254] addrconf_dad_work+0x10b/0xab0 [ 8333.754975][ T254] process_one_work+0x84d/0x18a0 [ 8333.754975][ T254] worker_thread+0x587/0xd30 [ 8333.754975][ T254] kthread+0x28a/0x350 [ 8333.754975][ T254] ret_from_fork+0x31/0x70 [ 8333.754975][ T254] ret_from_fork_asm+0x1a/0x30 [ 8333.754975][ T254] [ 8333.757148][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.757148][ T254] netdev_get_by_index+0x5e/0x80 [ 8333.757148][ T254] fib6_nh_init+0x3d8/0x1580 [ 8333.757148][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8333.757148][ T254] ip6_route_add+0x1c/0x140 [ 8333.757148][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8333.757148][ T254] inet6_addr_add+0x4f8/0xa40 [ 8333.757148][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8333.757148][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8333.757148][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.757148][ T254] netlink_unicast+0x449/0x710 [ 8333.757148][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.757148][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.757148][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.757148][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.757148][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.757148][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8333.757148][ T254] [ 8333.759399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.759399][ T254] netdev_get_by_index+0x5e/0x80 [ 8333.759399][ T254] fib6_nh_init+0x3d8/0x1580 [ 8333.759399][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8333.759399][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8333.759399][ T254] ipv6_add_addr+0x411/0x2000 [ 8333.759399][ T254] inet6_addr_add+0x30e/0xa40 [ 8333.759399][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8333.759399][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8333.759399][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.759399][ T254] netlink_unicast+0x449/0x710 [ 8333.759399][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.759399][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.759399][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.759399][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.759399][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.759399][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8333.759399][ T254] [ 8333.761745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.761745][ T254] netdev_get_by_index+0x5e/0x80 [ 8333.761745][ T254] fib6_nh_init+0x3d8/0x1580 [ 8333.761745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8333.761745][ T254] ip6_route_add+0x1c/0x140 [ 8333.761745][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8333.761745][ T254] addrconf_add_dev+0xe2/0x170 [ 8333.761745][ T254] inet6_addr_add+0x12f/0xa40 [ 8333.761745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8333.761745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8333.761745][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.761745][ T254] netlink_unicast+0x449/0x710 [ 8333.761745][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.761745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.761745][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.761745][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.761745][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.761745][ T254] [ 8333.763948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.763948][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8333.763948][ T254] ipv6_find_idev+0x102/0x170 [ 8333.763948][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8333.763948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8333.763948][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.763948][ T254] netlink_unicast+0x449/0x710 [ 8333.763948][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.763948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.763948][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.763948][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.763948][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.763948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8333.763948][ T254] [ 8333.765666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8333.765666][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8333.765666][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8333.765666][ T254] ipv6_find_idev+0x102/0x170 [ 8333.765666][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8333.765666][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8333.765666][ T254] netlink_rcv_skb+0x130/0x360 [ 8333.765666][ T254] netlink_unicast+0x449/0x710 [ 8333.765666][ T254] netlink_sendmsg+0x723/0xbe0 [ 8333.765666][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8333.765666][ T254] ___sys_sendmsg+0xee/0x170 [ 8333.765666][ T254] __sys_sendmsg+0xcd/0x170 [ 8333.765666][ T254] do_syscall_64+0xc6/0x1e0 [ 8333.765666][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8333.765666][ T254] [ 8343.919784][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8343.920193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.920193][ T254] dst_init+0x84/0x4a0 [ 8343.920193][ T254] dst_alloc+0x97/0x150 [ 8343.920193][ T254] ip6_dst_alloc+0x23/0x90 [ 8343.920193][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8343.920193][ T254] ip6_pol_route+0x56f/0x840 [ 8343.920193][ T254] fib6_rule_lookup+0x334/0x630 [ 8343.920193][ T254] ip6_route_output_flags+0x259/0x480 [ 8343.920193][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8343.920193][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8343.920193][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.920193][ T254] netlink_unicast+0x449/0x710 [ 8343.920193][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.920193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.920193][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.920193][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.920193][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.920193][ T254] [ 8343.922377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.922377][ T254] netdev_get_by_index+0x5e/0x80 [ 8343.922377][ T254] fib6_nh_init+0x3d8/0x1580 [ 8343.922377][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8343.922377][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8343.922377][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8343.922377][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8343.922377][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8343.922377][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8343.922377][ T254] addrconf_dad_begin+0x310/0x670 [ 8343.922377][ T254] addrconf_dad_work+0x10b/0xab0 [ 8343.922377][ T254] process_one_work+0x84d/0x18a0 [ 8343.922377][ T254] worker_thread+0x587/0xd30 [ 8343.922377][ T254] kthread+0x28a/0x350 [ 8343.922377][ T254] ret_from_fork+0x31/0x70 [ 8343.922377][ T254] ret_from_fork_asm+0x1a/0x30 [ 8343.922377][ T254] [ 8343.924505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.924505][ T254] netdev_get_by_index+0x5e/0x80 [ 8343.924505][ T254] fib6_nh_init+0x3d8/0x1580 [ 8343.924505][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8343.924505][ T254] ip6_route_add+0x1c/0x140 [ 8343.924505][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8343.924505][ T254] inet6_addr_add+0x4f8/0xa40 [ 8343.924505][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8343.924505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8343.924505][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.924505][ T254] netlink_unicast+0x449/0x710 [ 8343.924505][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.924505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.924505][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.924505][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.924505][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.924505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8343.924505][ T254] [ 8343.926732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.926732][ T254] netdev_get_by_index+0x5e/0x80 [ 8343.926732][ T254] fib6_nh_init+0x3d8/0x1580 [ 8343.926732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8343.926732][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8343.926732][ T254] ipv6_add_addr+0x411/0x2000 [ 8343.926732][ T254] inet6_addr_add+0x30e/0xa40 [ 8343.926732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8343.926732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8343.926732][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.926732][ T254] netlink_unicast+0x449/0x710 [ 8343.926732][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.926732][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.926732][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.926732][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.926732][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.926732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8343.926732][ T254] [ 8343.928978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.928978][ T254] netdev_get_by_index+0x5e/0x80 [ 8343.928978][ T254] fib6_nh_init+0x3d8/0x1580 [ 8343.928978][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8343.928978][ T254] ip6_route_add+0x1c/0x140 [ 8343.928978][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8343.928978][ T254] addrconf_add_dev+0xe2/0x170 [ 8343.928978][ T254] inet6_addr_add+0x12f/0xa40 [ 8343.928978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8343.928978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8343.928978][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.928978][ T254] netlink_unicast+0x449/0x710 [ 8343.928978][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.928978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.928978][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.928978][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.928978][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.928978][ T254] [ 8343.931161][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.931161][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8343.931161][ T254] ipv6_find_idev+0x102/0x170 [ 8343.931161][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8343.931161][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8343.931161][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.931161][ T254] netlink_unicast+0x449/0x710 [ 8343.931161][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.931161][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.931161][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.931161][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.931161][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.931161][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8343.931161][ T254] [ 8343.932874][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8343.932874][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8343.932874][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8343.932874][ T254] ipv6_find_idev+0x102/0x170 [ 8343.932874][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8343.932874][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8343.932874][ T254] netlink_rcv_skb+0x130/0x360 [ 8343.932874][ T254] netlink_unicast+0x449/0x710 [ 8343.932874][ T254] netlink_sendmsg+0x723/0xbe0 [ 8343.932874][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8343.932874][ T254] ___sys_sendmsg+0xee/0x170 [ 8343.932874][ T254] __sys_sendmsg+0xcd/0x170 [ 8343.932874][ T254] do_syscall_64+0xc6/0x1e0 [ 8343.932874][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8343.932874][ T254] [ 8354.151835][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8354.152365][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.152365][ T254] dst_init+0x84/0x4a0 [ 8354.152365][ T254] dst_alloc+0x97/0x150 [ 8354.152365][ T254] ip6_dst_alloc+0x23/0x90 [ 8354.152365][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8354.152365][ T254] ip6_pol_route+0x56f/0x840 [ 8354.152365][ T254] fib6_rule_lookup+0x334/0x630 [ 8354.152365][ T254] ip6_route_output_flags+0x259/0x480 [ 8354.152365][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8354.152365][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8354.152365][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.152365][ T254] netlink_unicast+0x449/0x710 [ 8354.152365][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.152365][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.152365][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.152365][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.152365][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.152365][ T254] [ 8354.154613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.154613][ T254] netdev_get_by_index+0x5e/0x80 [ 8354.154613][ T254] fib6_nh_init+0x3d8/0x1580 [ 8354.154613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8354.154613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8354.154613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8354.154613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8354.154613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8354.154613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8354.154613][ T254] addrconf_dad_begin+0x310/0x670 [ 8354.154613][ T254] addrconf_dad_work+0x10b/0xab0 [ 8354.154613][ T254] process_one_work+0x84d/0x18a0 [ 8354.154613][ T254] worker_thread+0x587/0xd30 [ 8354.154613][ T254] kthread+0x28a/0x350 [ 8354.154613][ T254] ret_from_fork+0x31/0x70 [ 8354.154613][ T254] ret_from_fork_asm+0x1a/0x30 [ 8354.154613][ T254] [ 8354.156812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.156812][ T254] netdev_get_by_index+0x5e/0x80 [ 8354.156812][ T254] fib6_nh_init+0x3d8/0x1580 [ 8354.156812][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8354.156812][ T254] ip6_route_add+0x1c/0x140 [ 8354.156812][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8354.156812][ T254] inet6_addr_add+0x4f8/0xa40 [ 8354.156812][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8354.156812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8354.156812][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.156812][ T254] netlink_unicast+0x449/0x710 [ 8354.156812][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.156812][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.156812][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.156812][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.156812][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.156812][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8354.156812][ T254] [ 8354.159084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.159084][ T254] netdev_get_by_index+0x5e/0x80 [ 8354.159084][ T254] fib6_nh_init+0x3d8/0x1580 [ 8354.159084][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8354.159084][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8354.159084][ T254] ipv6_add_addr+0x411/0x2000 [ 8354.159084][ T254] inet6_addr_add+0x30e/0xa40 [ 8354.159084][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8354.159084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8354.159084][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.159084][ T254] netlink_unicast+0x449/0x710 [ 8354.159084][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.159084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.159084][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.159084][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.159084][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.159084][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8354.159084][ T254] [ 8354.161351][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.161351][ T254] netdev_get_by_index+0x5e/0x80 [ 8354.161351][ T254] fib6_nh_init+0x3d8/0x1580 [ 8354.161351][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8354.161351][ T254] ip6_route_add+0x1c/0x140 [ 8354.161351][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8354.161351][ T254] addrconf_add_dev+0xe2/0x170 [ 8354.161351][ T254] inet6_addr_add+0x12f/0xa40 [ 8354.161351][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8354.161351][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8354.161351][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.161351][ T254] netlink_unicast+0x449/0x710 [ 8354.161351][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.161351][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.161351][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.161351][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.161351][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.161351][ T254] [ 8354.163578][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.163578][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8354.163578][ T254] ipv6_find_idev+0x102/0x170 [ 8354.163578][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8354.163578][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8354.163578][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.163578][ T254] netlink_unicast+0x449/0x710 [ 8354.163578][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.163578][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.163578][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.163578][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.163578][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.163578][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8354.163578][ T254] [ 8354.165328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8354.165328][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8354.165328][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8354.165328][ T254] ipv6_find_idev+0x102/0x170 [ 8354.165328][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8354.165328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8354.165328][ T254] netlink_rcv_skb+0x130/0x360 [ 8354.165328][ T254] netlink_unicast+0x449/0x710 [ 8354.165328][ T254] netlink_sendmsg+0x723/0xbe0 [ 8354.165328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8354.165328][ T254] ___sys_sendmsg+0xee/0x170 [ 8354.165328][ T254] __sys_sendmsg+0xcd/0x170 [ 8354.165328][ T254] do_syscall_64+0xc6/0x1e0 [ 8354.165328][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8354.165328][ T254] [ 8364.407901][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8364.408375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.408375][ T254] dst_init+0x84/0x4a0 [ 8364.408375][ T254] dst_alloc+0x97/0x150 [ 8364.408375][ T254] ip6_dst_alloc+0x23/0x90 [ 8364.408375][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8364.408375][ T254] ip6_pol_route+0x56f/0x840 [ 8364.408375][ T254] fib6_rule_lookup+0x334/0x630 [ 8364.408375][ T254] ip6_route_output_flags+0x259/0x480 [ 8364.408375][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8364.408375][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8364.408375][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.408375][ T254] netlink_unicast+0x449/0x710 [ 8364.408375][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.408375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.408375][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.408375][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.408375][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.408375][ T254] [ 8364.410586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.410586][ T254] netdev_get_by_index+0x5e/0x80 [ 8364.410586][ T254] fib6_nh_init+0x3d8/0x1580 [ 8364.410586][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8364.410586][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8364.410586][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8364.410586][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8364.410586][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8364.410586][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8364.410586][ T254] addrconf_dad_begin+0x310/0x670 [ 8364.410586][ T254] addrconf_dad_work+0x10b/0xab0 [ 8364.410586][ T254] process_one_work+0x84d/0x18a0 [ 8364.410586][ T254] worker_thread+0x587/0xd30 [ 8364.410586][ T254] kthread+0x28a/0x350 [ 8364.410586][ T254] ret_from_fork+0x31/0x70 [ 8364.410586][ T254] ret_from_fork_asm+0x1a/0x30 [ 8364.410586][ T254] [ 8364.412776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.412776][ T254] netdev_get_by_index+0x5e/0x80 [ 8364.412776][ T254] fib6_nh_init+0x3d8/0x1580 [ 8364.412776][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8364.412776][ T254] ip6_route_add+0x1c/0x140 [ 8364.412776][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8364.412776][ T254] inet6_addr_add+0x4f8/0xa40 [ 8364.412776][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8364.412776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8364.412776][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.412776][ T254] netlink_unicast+0x449/0x710 [ 8364.412776][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.412776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.412776][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.412776][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.412776][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.412776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8364.412776][ T254] [ 8364.415034][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.415034][ T254] netdev_get_by_index+0x5e/0x80 [ 8364.415034][ T254] fib6_nh_init+0x3d8/0x1580 [ 8364.415034][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8364.415034][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8364.415034][ T254] ipv6_add_addr+0x411/0x2000 [ 8364.415034][ T254] inet6_addr_add+0x30e/0xa40 [ 8364.415034][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8364.415034][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8364.415034][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.415034][ T254] netlink_unicast+0x449/0x710 [ 8364.415034][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.415034][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.415034][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.415034][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.415034][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.415034][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8364.415034][ T254] [ 8364.417288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.417288][ T254] netdev_get_by_index+0x5e/0x80 [ 8364.417288][ T254] fib6_nh_init+0x3d8/0x1580 [ 8364.417288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8364.417288][ T254] ip6_route_add+0x1c/0x140 [ 8364.417288][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8364.417288][ T254] addrconf_add_dev+0xe2/0x170 [ 8364.417288][ T254] inet6_addr_add+0x12f/0xa40 [ 8364.417288][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8364.417288][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8364.417288][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.417288][ T254] netlink_unicast+0x449/0x710 [ 8364.417288][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.417288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.417288][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.417288][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.417288][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.417288][ T254] [ 8364.419487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.419487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8364.419487][ T254] ipv6_find_idev+0x102/0x170 [ 8364.419487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8364.419487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8364.419487][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.419487][ T254] netlink_unicast+0x449/0x710 [ 8364.419487][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.419487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.419487][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.419487][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.419487][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.419487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8364.419487][ T254] [ 8364.421197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8364.421197][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8364.421197][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8364.421197][ T254] ipv6_find_idev+0x102/0x170 [ 8364.421197][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8364.421197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8364.421197][ T254] netlink_rcv_skb+0x130/0x360 [ 8364.421197][ T254] netlink_unicast+0x449/0x710 [ 8364.421197][ T254] netlink_sendmsg+0x723/0xbe0 [ 8364.421197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8364.421197][ T254] ___sys_sendmsg+0xee/0x170 [ 8364.421197][ T254] __sys_sendmsg+0xcd/0x170 [ 8364.421197][ T254] do_syscall_64+0xc6/0x1e0 [ 8364.421197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8364.421197][ T254] [ 8374.527846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8374.528257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.528257][ T254] dst_init+0x84/0x4a0 [ 8374.528257][ T254] dst_alloc+0x97/0x150 [ 8374.528257][ T254] ip6_dst_alloc+0x23/0x90 [ 8374.528257][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8374.528257][ T254] ip6_pol_route+0x56f/0x840 [ 8374.528257][ T254] fib6_rule_lookup+0x334/0x630 [ 8374.528257][ T254] ip6_route_output_flags+0x259/0x480 [ 8374.528257][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8374.528257][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8374.528257][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.528257][ T254] netlink_unicast+0x449/0x710 [ 8374.528257][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.528257][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.528257][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.528257][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.528257][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.528257][ T254] [ 8374.530459][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.530459][ T254] netdev_get_by_index+0x5e/0x80 [ 8374.530459][ T254] fib6_nh_init+0x3d8/0x1580 [ 8374.530459][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8374.530459][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8374.530459][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8374.530459][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8374.530459][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8374.530459][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8374.530459][ T254] addrconf_dad_begin+0x310/0x670 [ 8374.530459][ T254] addrconf_dad_work+0x10b/0xab0 [ 8374.530459][ T254] process_one_work+0x84d/0x18a0 [ 8374.530459][ T254] worker_thread+0x587/0xd30 [ 8374.530459][ T254] kthread+0x28a/0x350 [ 8374.530459][ T254] ret_from_fork+0x31/0x70 [ 8374.530459][ T254] ret_from_fork_asm+0x1a/0x30 [ 8374.530459][ T254] [ 8374.532595][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.532595][ T254] netdev_get_by_index+0x5e/0x80 [ 8374.532595][ T254] fib6_nh_init+0x3d8/0x1580 [ 8374.532595][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8374.532595][ T254] ip6_route_add+0x1c/0x140 [ 8374.532595][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8374.532595][ T254] inet6_addr_add+0x4f8/0xa40 [ 8374.532595][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8374.532595][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8374.532595][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.532595][ T254] netlink_unicast+0x449/0x710 [ 8374.532595][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.532595][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.532595][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.532595][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.532595][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.532595][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8374.532595][ T254] [ 8374.534829][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.534829][ T254] netdev_get_by_index+0x5e/0x80 [ 8374.534829][ T254] fib6_nh_init+0x3d8/0x1580 [ 8374.534829][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8374.534829][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8374.534829][ T254] ipv6_add_addr+0x411/0x2000 [ 8374.534829][ T254] inet6_addr_add+0x30e/0xa40 [ 8374.534829][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8374.534829][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8374.534829][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.534829][ T254] netlink_unicast+0x449/0x710 [ 8374.534829][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.534829][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.534829][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.534829][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.534829][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.534829][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8374.534829][ T254] [ 8374.537058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.537058][ T254] netdev_get_by_index+0x5e/0x80 [ 8374.537058][ T254] fib6_nh_init+0x3d8/0x1580 [ 8374.537058][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8374.537058][ T254] ip6_route_add+0x1c/0x140 [ 8374.537058][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8374.537058][ T254] addrconf_add_dev+0xe2/0x170 [ 8374.537058][ T254] inet6_addr_add+0x12f/0xa40 [ 8374.537058][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8374.537058][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8374.537058][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.537058][ T254] netlink_unicast+0x449/0x710 [ 8374.537058][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.537058][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.537058][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.537058][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.537058][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.537058][ T254] [ 8374.539258][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.539258][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8374.539258][ T254] ipv6_find_idev+0x102/0x170 [ 8374.539258][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8374.539258][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8374.539258][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.539258][ T254] netlink_unicast+0x449/0x710 [ 8374.539258][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.539258][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.539258][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.539258][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.539258][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.539258][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8374.539258][ T254] [ 8374.540987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8374.540987][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8374.540987][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8374.540987][ T254] ipv6_find_idev+0x102/0x170 [ 8374.540987][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8374.540987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8374.540987][ T254] netlink_rcv_skb+0x130/0x360 [ 8374.540987][ T254] netlink_unicast+0x449/0x710 [ 8374.540987][ T254] netlink_sendmsg+0x723/0xbe0 [ 8374.540987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8374.540987][ T254] ___sys_sendmsg+0xee/0x170 [ 8374.540987][ T254] __sys_sendmsg+0xcd/0x170 [ 8374.540987][ T254] do_syscall_64+0xc6/0x1e0 [ 8374.540987][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8374.540987][ T254] [ 8384.783840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8384.784247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.784247][ T254] dst_init+0x84/0x4a0 [ 8384.784247][ T254] dst_alloc+0x97/0x150 [ 8384.784247][ T254] ip6_dst_alloc+0x23/0x90 [ 8384.784247][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8384.784247][ T254] ip6_pol_route+0x56f/0x840 [ 8384.784247][ T254] fib6_rule_lookup+0x334/0x630 [ 8384.784247][ T254] ip6_route_output_flags+0x259/0x480 [ 8384.784247][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8384.784247][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8384.784247][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.784247][ T254] netlink_unicast+0x449/0x710 [ 8384.784247][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.784247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.784247][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.784247][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.784247][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.784247][ T254] [ 8384.786541][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.786541][ T254] netdev_get_by_index+0x5e/0x80 [ 8384.786541][ T254] fib6_nh_init+0x3d8/0x1580 [ 8384.786541][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8384.786541][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8384.786541][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8384.786541][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8384.786541][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8384.786541][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8384.786541][ T254] addrconf_dad_begin+0x310/0x670 [ 8384.786541][ T254] addrconf_dad_work+0x10b/0xab0 [ 8384.786541][ T254] process_one_work+0x84d/0x18a0 [ 8384.786541][ T254] worker_thread+0x587/0xd30 [ 8384.786541][ T254] kthread+0x28a/0x350 [ 8384.786541][ T254] ret_from_fork+0x31/0x70 [ 8384.786541][ T254] ret_from_fork_asm+0x1a/0x30 [ 8384.786541][ T254] [ 8384.788695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.788695][ T254] netdev_get_by_index+0x5e/0x80 [ 8384.788695][ T254] fib6_nh_init+0x3d8/0x1580 [ 8384.788695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8384.788695][ T254] ip6_route_add+0x1c/0x140 [ 8384.788695][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8384.788695][ T254] inet6_addr_add+0x4f8/0xa40 [ 8384.788695][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8384.788695][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8384.788695][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.788695][ T254] netlink_unicast+0x449/0x710 [ 8384.788695][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.788695][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.788695][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.788695][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.788695][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.788695][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8384.788695][ T254] [ 8384.790931][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.790931][ T254] netdev_get_by_index+0x5e/0x80 [ 8384.790931][ T254] fib6_nh_init+0x3d8/0x1580 [ 8384.790931][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8384.790931][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8384.790931][ T254] ipv6_add_addr+0x411/0x2000 [ 8384.790931][ T254] inet6_addr_add+0x30e/0xa40 [ 8384.790931][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8384.790931][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8384.790931][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.790931][ T254] netlink_unicast+0x449/0x710 [ 8384.790931][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.790931][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.790931][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.790931][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.790931][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.790931][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8384.790931][ T254] [ 8384.793165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.793165][ T254] netdev_get_by_index+0x5e/0x80 [ 8384.793165][ T254] fib6_nh_init+0x3d8/0x1580 [ 8384.793165][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8384.793165][ T254] ip6_route_add+0x1c/0x140 [ 8384.793165][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8384.793165][ T254] addrconf_add_dev+0xe2/0x170 [ 8384.793165][ T254] inet6_addr_add+0x12f/0xa40 [ 8384.793165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8384.793165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8384.793165][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.793165][ T254] netlink_unicast+0x449/0x710 [ 8384.793165][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.793165][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.793165][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.793165][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.793165][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.793165][ T254] [ 8384.795358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.795358][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8384.795358][ T254] ipv6_find_idev+0x102/0x170 [ 8384.795358][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8384.795358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8384.795358][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.795358][ T254] netlink_unicast+0x449/0x710 [ 8384.795358][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.795358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.795358][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.795358][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.795358][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.795358][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8384.795358][ T254] [ 8384.797084][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8384.797084][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8384.797084][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8384.797084][ T254] ipv6_find_idev+0x102/0x170 [ 8384.797084][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8384.797084][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8384.797084][ T254] netlink_rcv_skb+0x130/0x360 [ 8384.797084][ T254] netlink_unicast+0x449/0x710 [ 8384.797084][ T254] netlink_sendmsg+0x723/0xbe0 [ 8384.797084][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8384.797084][ T254] ___sys_sendmsg+0xee/0x170 [ 8384.797084][ T254] __sys_sendmsg+0xcd/0x170 [ 8384.797084][ T254] do_syscall_64+0xc6/0x1e0 [ 8384.797084][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8384.797084][ T254] [ 8395.039845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8395.040337][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.040337][ T254] dst_init+0x84/0x4a0 [ 8395.040337][ T254] dst_alloc+0x97/0x150 [ 8395.040337][ T254] ip6_dst_alloc+0x23/0x90 [ 8395.040337][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8395.040337][ T254] ip6_pol_route+0x56f/0x840 [ 8395.040337][ T254] fib6_rule_lookup+0x334/0x630 [ 8395.040337][ T254] ip6_route_output_flags+0x259/0x480 [ 8395.040337][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8395.040337][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8395.040337][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.040337][ T254] netlink_unicast+0x449/0x710 [ 8395.040337][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.040337][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.040337][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.040337][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.040337][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.040337][ T254] [ 8395.042612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.042612][ T254] netdev_get_by_index+0x5e/0x80 [ 8395.042612][ T254] fib6_nh_init+0x3d8/0x1580 [ 8395.042612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8395.042612][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8395.042612][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8395.042612][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8395.042612][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8395.042612][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8395.042612][ T254] addrconf_dad_begin+0x310/0x670 [ 8395.042612][ T254] addrconf_dad_work+0x10b/0xab0 [ 8395.042612][ T254] process_one_work+0x84d/0x18a0 [ 8395.042612][ T254] worker_thread+0x587/0xd30 [ 8395.042612][ T254] kthread+0x28a/0x350 [ 8395.042612][ T254] ret_from_fork+0x31/0x70 [ 8395.042612][ T254] ret_from_fork_asm+0x1a/0x30 [ 8395.042612][ T254] [ 8395.044765][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.044765][ T254] netdev_get_by_index+0x5e/0x80 [ 8395.044765][ T254] fib6_nh_init+0x3d8/0x1580 [ 8395.044765][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8395.044765][ T254] ip6_route_add+0x1c/0x140 [ 8395.044765][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8395.044765][ T254] inet6_addr_add+0x4f8/0xa40 [ 8395.044765][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8395.044765][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8395.044765][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.044765][ T254] netlink_unicast+0x449/0x710 [ 8395.044765][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.044765][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.044765][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.044765][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.044765][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.044765][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8395.044765][ T254] [ 8395.047016][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.047016][ T254] netdev_get_by_index+0x5e/0x80 [ 8395.047016][ T254] fib6_nh_init+0x3d8/0x1580 [ 8395.047016][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8395.047016][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8395.047016][ T254] ipv6_add_addr+0x411/0x2000 [ 8395.047016][ T254] inet6_addr_add+0x30e/0xa40 [ 8395.047016][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8395.047016][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8395.047016][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.047016][ T254] netlink_unicast+0x449/0x710 [ 8395.047016][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.047016][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.047016][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.047016][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.047016][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.047016][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8395.047016][ T254] [ 8395.049284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.049284][ T254] netdev_get_by_index+0x5e/0x80 [ 8395.049284][ T254] fib6_nh_init+0x3d8/0x1580 [ 8395.049284][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8395.049284][ T254] ip6_route_add+0x1c/0x140 [ 8395.049284][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8395.049284][ T254] addrconf_add_dev+0xe2/0x170 [ 8395.049284][ T254] inet6_addr_add+0x12f/0xa40 [ 8395.049284][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8395.049284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8395.049284][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.049284][ T254] netlink_unicast+0x449/0x710 [ 8395.049284][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.049284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.049284][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.049284][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.049284][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.049284][ T254] [ 8395.051477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.051477][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8395.051477][ T254] ipv6_find_idev+0x102/0x170 [ 8395.051477][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8395.051477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8395.051477][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.051477][ T254] netlink_unicast+0x449/0x710 [ 8395.051477][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.051477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.051477][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.051477][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.051477][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.051477][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8395.051477][ T254] [ 8395.053203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8395.053203][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8395.053203][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8395.053203][ T254] ipv6_find_idev+0x102/0x170 [ 8395.053203][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8395.053203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8395.053203][ T254] netlink_rcv_skb+0x130/0x360 [ 8395.053203][ T254] netlink_unicast+0x449/0x710 [ 8395.053203][ T254] netlink_sendmsg+0x723/0xbe0 [ 8395.053203][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8395.053203][ T254] ___sys_sendmsg+0xee/0x170 [ 8395.053203][ T254] __sys_sendmsg+0xcd/0x170 [ 8395.053203][ T254] do_syscall_64+0xc6/0x1e0 [ 8395.053203][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8395.053203][ T254] [ 8405.191894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8405.192385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.192385][ T254] dst_init+0x84/0x4a0 [ 8405.192385][ T254] dst_alloc+0x97/0x150 [ 8405.192385][ T254] ip6_dst_alloc+0x23/0x90 [ 8405.192385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8405.192385][ T254] ip6_pol_route+0x56f/0x840 [ 8405.192385][ T254] fib6_rule_lookup+0x334/0x630 [ 8405.192385][ T254] ip6_route_output_flags+0x259/0x480 [ 8405.192385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8405.192385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8405.192385][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.192385][ T254] netlink_unicast+0x449/0x710 [ 8405.192385][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.192385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.192385][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.192385][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.192385][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.192385][ T254] [ 8405.194626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.194626][ T254] netdev_get_by_index+0x5e/0x80 [ 8405.194626][ T254] fib6_nh_init+0x3d8/0x1580 [ 8405.194626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8405.194626][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8405.194626][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8405.194626][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8405.194626][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8405.194626][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8405.194626][ T254] addrconf_dad_begin+0x310/0x670 [ 8405.194626][ T254] addrconf_dad_work+0x10b/0xab0 [ 8405.194626][ T254] process_one_work+0x84d/0x18a0 [ 8405.194626][ T254] worker_thread+0x587/0xd30 [ 8405.194626][ T254] kthread+0x28a/0x350 [ 8405.194626][ T254] ret_from_fork+0x31/0x70 [ 8405.194626][ T254] ret_from_fork_asm+0x1a/0x30 [ 8405.194626][ T254] [ 8405.196822][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.196822][ T254] netdev_get_by_index+0x5e/0x80 [ 8405.196822][ T254] fib6_nh_init+0x3d8/0x1580 [ 8405.196822][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8405.196822][ T254] ip6_route_add+0x1c/0x140 [ 8405.196822][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8405.196822][ T254] inet6_addr_add+0x4f8/0xa40 [ 8405.196822][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8405.196822][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8405.196822][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.196822][ T254] netlink_unicast+0x449/0x710 [ 8405.196822][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.196822][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.196822][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.196822][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.196822][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.196822][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8405.196822][ T254] [ 8405.199085][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.199085][ T254] netdev_get_by_index+0x5e/0x80 [ 8405.199085][ T254] fib6_nh_init+0x3d8/0x1580 [ 8405.199085][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8405.199085][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8405.199085][ T254] ipv6_add_addr+0x411/0x2000 [ 8405.199085][ T254] inet6_addr_add+0x30e/0xa40 [ 8405.199085][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8405.199085][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8405.199085][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.199085][ T254] netlink_unicast+0x449/0x710 [ 8405.199085][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.199085][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.199085][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.199085][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.199085][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.199085][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8405.199085][ T254] [ 8405.201323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.201323][ T254] netdev_get_by_index+0x5e/0x80 [ 8405.201323][ T254] fib6_nh_init+0x3d8/0x1580 [ 8405.201323][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8405.201323][ T254] ip6_route_add+0x1c/0x140 [ 8405.201323][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8405.201323][ T254] addrconf_add_dev+0xe2/0x170 [ 8405.201323][ T254] inet6_addr_add+0x12f/0xa40 [ 8405.201323][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8405.201323][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8405.201323][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.201323][ T254] netlink_unicast+0x449/0x710 [ 8405.201323][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.201323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.201323][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.201323][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.201323][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.201323][ T254] [ 8405.203587][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.203587][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8405.203587][ T254] ipv6_find_idev+0x102/0x170 [ 8405.203587][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8405.203587][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8405.203587][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.203587][ T254] netlink_unicast+0x449/0x710 [ 8405.203587][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.203587][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.203587][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.203587][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.203587][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.203587][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8405.203587][ T254] [ 8405.205309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8405.205309][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8405.205309][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8405.205309][ T254] ipv6_find_idev+0x102/0x170 [ 8405.205309][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8405.205309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8405.205309][ T254] netlink_rcv_skb+0x130/0x360 [ 8405.205309][ T254] netlink_unicast+0x449/0x710 [ 8405.205309][ T254] netlink_sendmsg+0x723/0xbe0 [ 8405.205309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8405.205309][ T254] ___sys_sendmsg+0xee/0x170 [ 8405.205309][ T254] __sys_sendmsg+0xcd/0x170 [ 8405.205309][ T254] do_syscall_64+0xc6/0x1e0 [ 8405.205309][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8405.205309][ T254] [ 8415.295947][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8415.296678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.296678][ T254] dst_init+0x84/0x4a0 [ 8415.296678][ T254] dst_alloc+0x97/0x150 [ 8415.296678][ T254] ip6_dst_alloc+0x23/0x90 [ 8415.296678][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8415.296678][ T254] ip6_pol_route+0x56f/0x840 [ 8415.296678][ T254] fib6_rule_lookup+0x334/0x630 [ 8415.296678][ T254] ip6_route_output_flags+0x259/0x480 [ 8415.296678][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8415.296678][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8415.296678][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.296678][ T254] netlink_unicast+0x449/0x710 [ 8415.296678][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.296678][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.296678][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.296678][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.296678][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.296678][ T254] [ 8415.298893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.298893][ T254] netdev_get_by_index+0x5e/0x80 [ 8415.298893][ T254] fib6_nh_init+0x3d8/0x1580 [ 8415.298893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8415.298893][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8415.298893][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8415.298893][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8415.298893][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8415.298893][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8415.298893][ T254] addrconf_dad_begin+0x310/0x670 [ 8415.298893][ T254] addrconf_dad_work+0x10b/0xab0 [ 8415.298893][ T254] process_one_work+0x84d/0x18a0 [ 8415.298893][ T254] worker_thread+0x587/0xd30 [ 8415.298893][ T254] kthread+0x28a/0x350 [ 8415.298893][ T254] ret_from_fork+0x31/0x70 [ 8415.298893][ T254] ret_from_fork_asm+0x1a/0x30 [ 8415.298893][ T254] [ 8415.301037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.301037][ T254] netdev_get_by_index+0x5e/0x80 [ 8415.301037][ T254] fib6_nh_init+0x3d8/0x1580 [ 8415.301037][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8415.301037][ T254] ip6_route_add+0x1c/0x140 [ 8415.301037][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8415.301037][ T254] inet6_addr_add+0x4f8/0xa40 [ 8415.301037][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8415.301037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8415.301037][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.301037][ T254] netlink_unicast+0x449/0x710 [ 8415.301037][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.301037][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.301037][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.301037][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.301037][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.301037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8415.301037][ T254] [ 8415.303268][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.303268][ T254] netdev_get_by_index+0x5e/0x80 [ 8415.303268][ T254] fib6_nh_init+0x3d8/0x1580 [ 8415.303268][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8415.303268][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8415.303268][ T254] ipv6_add_addr+0x411/0x2000 [ 8415.303268][ T254] inet6_addr_add+0x30e/0xa40 [ 8415.303268][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8415.303268][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8415.303268][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.303268][ T254] netlink_unicast+0x449/0x710 [ 8415.303268][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.303268][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.303268][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.303268][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.303268][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.303268][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8415.303268][ T254] [ 8415.305502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.305502][ T254] netdev_get_by_index+0x5e/0x80 [ 8415.305502][ T254] fib6_nh_init+0x3d8/0x1580 [ 8415.305502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8415.305502][ T254] ip6_route_add+0x1c/0x140 [ 8415.305502][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8415.305502][ T254] addrconf_add_dev+0xe2/0x170 [ 8415.305502][ T254] inet6_addr_add+0x12f/0xa40 [ 8415.305502][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8415.305502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8415.305502][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.305502][ T254] netlink_unicast+0x449/0x710 [ 8415.305502][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.305502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.305502][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.305502][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.305502][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.305502][ T254] [ 8415.307697][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.307697][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8415.307697][ T254] ipv6_find_idev+0x102/0x170 [ 8415.307697][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8415.307697][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8415.307697][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.307697][ T254] netlink_unicast+0x449/0x710 [ 8415.307697][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.307697][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.307697][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.307697][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.307697][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.307697][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8415.307697][ T254] [ 8415.309447][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8415.309447][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8415.309447][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8415.309447][ T254] ipv6_find_idev+0x102/0x170 [ 8415.309447][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8415.309447][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8415.309447][ T254] netlink_rcv_skb+0x130/0x360 [ 8415.309447][ T254] netlink_unicast+0x449/0x710 [ 8415.309447][ T254] netlink_sendmsg+0x723/0xbe0 [ 8415.309447][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8415.309447][ T254] ___sys_sendmsg+0xee/0x170 [ 8415.309447][ T254] __sys_sendmsg+0xcd/0x170 [ 8415.309447][ T254] do_syscall_64+0xc6/0x1e0 [ 8415.309447][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8415.309447][ T254] [ 8425.551818][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8425.552303][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.552303][ T254] dst_init+0x84/0x4a0 [ 8425.552303][ T254] dst_alloc+0x97/0x150 [ 8425.552303][ T254] ip6_dst_alloc+0x23/0x90 [ 8425.552303][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8425.552303][ T254] ip6_pol_route+0x56f/0x840 [ 8425.552303][ T254] fib6_rule_lookup+0x334/0x630 [ 8425.552303][ T254] ip6_route_output_flags+0x259/0x480 [ 8425.552303][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8425.552303][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8425.552303][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.552303][ T254] netlink_unicast+0x449/0x710 [ 8425.552303][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.552303][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.552303][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.552303][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.552303][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.552303][ T254] [ 8425.554539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.554539][ T254] netdev_get_by_index+0x5e/0x80 [ 8425.554539][ T254] fib6_nh_init+0x3d8/0x1580 [ 8425.554539][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8425.554539][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8425.554539][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8425.554539][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8425.554539][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8425.554539][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8425.554539][ T254] addrconf_dad_begin+0x310/0x670 [ 8425.554539][ T254] addrconf_dad_work+0x10b/0xab0 [ 8425.554539][ T254] process_one_work+0x84d/0x18a0 [ 8425.554539][ T254] worker_thread+0x587/0xd30 [ 8425.554539][ T254] kthread+0x28a/0x350 [ 8425.554539][ T254] ret_from_fork+0x31/0x70 [ 8425.554539][ T254] ret_from_fork_asm+0x1a/0x30 [ 8425.554539][ T254] [ 8425.556702][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.556702][ T254] netdev_get_by_index+0x5e/0x80 [ 8425.556702][ T254] fib6_nh_init+0x3d8/0x1580 [ 8425.556702][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8425.556702][ T254] ip6_route_add+0x1c/0x140 [ 8425.556702][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8425.556702][ T254] inet6_addr_add+0x4f8/0xa40 [ 8425.556702][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8425.556702][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8425.556702][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.556702][ T254] netlink_unicast+0x449/0x710 [ 8425.556702][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.556702][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.556702][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.556702][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.556702][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.556702][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8425.556702][ T254] [ 8425.558995][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.558995][ T254] netdev_get_by_index+0x5e/0x80 [ 8425.558995][ T254] fib6_nh_init+0x3d8/0x1580 [ 8425.558995][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8425.558995][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8425.558995][ T254] ipv6_add_addr+0x411/0x2000 [ 8425.558995][ T254] inet6_addr_add+0x30e/0xa40 [ 8425.558995][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8425.558995][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8425.558995][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.558995][ T254] netlink_unicast+0x449/0x710 [ 8425.558995][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.558995][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.558995][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.558995][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.558995][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.558995][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8425.558995][ T254] [ 8425.561242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.561242][ T254] netdev_get_by_index+0x5e/0x80 [ 8425.561242][ T254] fib6_nh_init+0x3d8/0x1580 [ 8425.561242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8425.561242][ T254] ip6_route_add+0x1c/0x140 [ 8425.561242][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8425.561242][ T254] addrconf_add_dev+0xe2/0x170 [ 8425.561242][ T254] inet6_addr_add+0x12f/0xa40 [ 8425.561242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8425.561242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8425.561242][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.561242][ T254] netlink_unicast+0x449/0x710 [ 8425.561242][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.561242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.561242][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.561242][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.561242][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.561242][ T254] [ 8425.563449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.563449][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8425.563449][ T254] ipv6_find_idev+0x102/0x170 [ 8425.563449][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8425.563449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8425.563449][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.563449][ T254] netlink_unicast+0x449/0x710 [ 8425.563449][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.563449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.563449][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.563449][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.563449][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.563449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8425.563449][ T254] [ 8425.565341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8425.565341][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8425.565341][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8425.565341][ T254] ipv6_find_idev+0x102/0x170 [ 8425.565341][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8425.565341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8425.565341][ T254] netlink_rcv_skb+0x130/0x360 [ 8425.565341][ T254] netlink_unicast+0x449/0x710 [ 8425.565341][ T254] netlink_sendmsg+0x723/0xbe0 [ 8425.565341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8425.565341][ T254] ___sys_sendmsg+0xee/0x170 [ 8425.565341][ T254] __sys_sendmsg+0xcd/0x170 [ 8425.565341][ T254] do_syscall_64+0xc6/0x1e0 [ 8425.565341][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8425.565341][ T254] [ 8435.807939][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8435.808664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.808664][ T254] dst_init+0x84/0x4a0 [ 8435.808664][ T254] dst_alloc+0x97/0x150 [ 8435.808664][ T254] ip6_dst_alloc+0x23/0x90 [ 8435.808664][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8435.808664][ T254] ip6_pol_route+0x56f/0x840 [ 8435.808664][ T254] fib6_rule_lookup+0x334/0x630 [ 8435.808664][ T254] ip6_route_output_flags+0x259/0x480 [ 8435.808664][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8435.808664][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8435.808664][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.808664][ T254] netlink_unicast+0x449/0x710 [ 8435.808664][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.808664][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.808664][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.808664][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.808664][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.808664][ T254] [ 8435.812661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.812661][ T254] netdev_get_by_index+0x5e/0x80 [ 8435.812661][ T254] fib6_nh_init+0x3d8/0x1580 [ 8435.812661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8435.812661][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8435.812661][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8435.812661][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8435.812661][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8435.812661][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8435.812661][ T254] addrconf_dad_begin+0x310/0x670 [ 8435.812661][ T254] addrconf_dad_work+0x10b/0xab0 [ 8435.812661][ T254] process_one_work+0x84d/0x18a0 [ 8435.812661][ T254] worker_thread+0x587/0xd30 [ 8435.812661][ T254] kthread+0x28a/0x350 [ 8435.812661][ T254] ret_from_fork+0x31/0x70 [ 8435.812661][ T254] ret_from_fork_asm+0x1a/0x30 [ 8435.812661][ T254] [ 8435.816801][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.816801][ T254] netdev_get_by_index+0x5e/0x80 [ 8435.816801][ T254] fib6_nh_init+0x3d8/0x1580 [ 8435.816801][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8435.816801][ T254] ip6_route_add+0x1c/0x140 [ 8435.816801][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8435.816801][ T254] inet6_addr_add+0x4f8/0xa40 [ 8435.816801][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8435.816801][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8435.816801][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.816801][ T254] netlink_unicast+0x449/0x710 [ 8435.816801][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.816801][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.816801][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.816801][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.816801][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.816801][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8435.816801][ T254] [ 8435.822394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.822394][ T254] netdev_get_by_index+0x5e/0x80 [ 8435.822394][ T254] fib6_nh_init+0x3d8/0x1580 [ 8435.822394][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8435.822394][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8435.822394][ T254] ipv6_add_addr+0x411/0x2000 [ 8435.822394][ T254] inet6_addr_add+0x30e/0xa40 [ 8435.822394][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8435.822394][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8435.822394][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.822394][ T254] netlink_unicast+0x449/0x710 [ 8435.822394][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.822394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.822394][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.822394][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.822394][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.822394][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8435.822394][ T254] [ 8435.832420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.832420][ T254] netdev_get_by_index+0x5e/0x80 [ 8435.832420][ T254] fib6_nh_init+0x3d8/0x1580 [ 8435.832420][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8435.832420][ T254] ip6_route_add+0x1c/0x140 [ 8435.832420][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8435.832420][ T254] addrconf_add_dev+0xe2/0x170 [ 8435.832420][ T254] inet6_addr_add+0x12f/0xa40 [ 8435.832420][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8435.832420][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8435.832420][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.832420][ T254] netlink_unicast+0x449/0x710 [ 8435.832420][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.832420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.832420][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.832420][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.832420][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.832420][ T254] [ 8435.839179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.839179][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8435.839179][ T254] ipv6_find_idev+0x102/0x170 [ 8435.839179][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8435.839179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8435.839179][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.839179][ T254] netlink_unicast+0x449/0x710 [ 8435.839179][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.839179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.839179][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.839179][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.839179][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.839179][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8435.839179][ T254] [ 8435.844312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8435.844312][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8435.844312][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8435.844312][ T254] ipv6_find_idev+0x102/0x170 [ 8435.844312][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8435.844312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8435.844312][ T254] netlink_rcv_skb+0x130/0x360 [ 8435.844312][ T254] netlink_unicast+0x449/0x710 [ 8435.844312][ T254] netlink_sendmsg+0x723/0xbe0 [ 8435.844312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8435.844312][ T254] ___sys_sendmsg+0xee/0x170 [ 8435.844312][ T254] __sys_sendmsg+0xcd/0x170 [ 8435.844312][ T254] do_syscall_64+0xc6/0x1e0 [ 8435.844312][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8435.844312][ T254] [ 8446.095945][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8446.096734][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.096734][ T254] dst_init+0x84/0x4a0 [ 8446.096734][ T254] dst_alloc+0x97/0x150 [ 8446.096734][ T254] ip6_dst_alloc+0x23/0x90 [ 8446.096734][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8446.096734][ T254] ip6_pol_route+0x56f/0x840 [ 8446.096734][ T254] fib6_rule_lookup+0x334/0x630 [ 8446.096734][ T254] ip6_route_output_flags+0x259/0x480 [ 8446.096734][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8446.096734][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8446.096734][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.096734][ T254] netlink_unicast+0x449/0x710 [ 8446.096734][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.096734][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.096734][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.096734][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.096734][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.096734][ T254] [ 8446.113532][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.113532][ T254] netdev_get_by_index+0x5e/0x80 [ 8446.113532][ T254] fib6_nh_init+0x3d8/0x1580 [ 8446.113532][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8446.113532][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8446.113532][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8446.113532][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8446.113532][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8446.113532][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8446.113532][ T254] addrconf_dad_begin+0x310/0x670 [ 8446.113532][ T254] addrconf_dad_work+0x10b/0xab0 [ 8446.113532][ T254] process_one_work+0x84d/0x18a0 [ 8446.113532][ T254] worker_thread+0x587/0xd30 [ 8446.113532][ T254] kthread+0x28a/0x350 [ 8446.113532][ T254] ret_from_fork+0x31/0x70 [ 8446.113532][ T254] ret_from_fork_asm+0x1a/0x30 [ 8446.113532][ T254] [ 8446.118687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.118687][ T254] netdev_get_by_index+0x5e/0x80 [ 8446.118687][ T254] fib6_nh_init+0x3d8/0x1580 [ 8446.118687][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8446.118687][ T254] ip6_route_add+0x1c/0x140 [ 8446.118687][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8446.118687][ T254] inet6_addr_add+0x4f8/0xa40 [ 8446.118687][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8446.118687][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8446.118687][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.118687][ T254] netlink_unicast+0x449/0x710 [ 8446.118687][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.118687][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.118687][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.118687][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.118687][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.118687][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8446.118687][ T254] [ 8446.124585][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.124585][ T254] netdev_get_by_index+0x5e/0x80 [ 8446.124585][ T254] fib6_nh_init+0x3d8/0x1580 [ 8446.124585][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8446.124585][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8446.124585][ T254] ipv6_add_addr+0x411/0x2000 [ 8446.124585][ T254] inet6_addr_add+0x30e/0xa40 [ 8446.124585][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8446.124585][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8446.124585][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.124585][ T254] netlink_unicast+0x449/0x710 [ 8446.124585][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.124585][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.124585][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.124585][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.124585][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.124585][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8446.124585][ T254] [ 8446.131567][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.131567][ T254] netdev_get_by_index+0x5e/0x80 [ 8446.131567][ T254] fib6_nh_init+0x3d8/0x1580 [ 8446.131567][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8446.131567][ T254] ip6_route_add+0x1c/0x140 [ 8446.131567][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8446.131567][ T254] addrconf_add_dev+0xe2/0x170 [ 8446.131567][ T254] inet6_addr_add+0x12f/0xa40 [ 8446.131567][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8446.131567][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8446.131567][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.131567][ T254] netlink_unicast+0x449/0x710 [ 8446.131567][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.131567][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.131567][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.131567][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.131567][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.131567][ T254] [ 8446.138449][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.138449][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8446.138449][ T254] ipv6_find_idev+0x102/0x170 [ 8446.138449][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8446.138449][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8446.138449][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.138449][ T254] netlink_unicast+0x449/0x710 [ 8446.138449][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.138449][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.138449][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.138449][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.138449][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.138449][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8446.138449][ T254] [ 8446.143833][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8446.143833][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8446.143833][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8446.143833][ T254] ipv6_find_idev+0x102/0x170 [ 8446.143833][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8446.143833][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8446.143833][ T254] netlink_rcv_skb+0x130/0x360 [ 8446.143833][ T254] netlink_unicast+0x449/0x710 [ 8446.143833][ T254] netlink_sendmsg+0x723/0xbe0 [ 8446.143833][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8446.143833][ T254] ___sys_sendmsg+0xee/0x170 [ 8446.143833][ T254] __sys_sendmsg+0xcd/0x170 [ 8446.143833][ T254] do_syscall_64+0xc6/0x1e0 [ 8446.143833][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8446.143833][ T254] [ 8456.392191][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8456.409233][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.409233][ T254] dst_init+0x84/0x4a0 [ 8456.409233][ T254] dst_alloc+0x97/0x150 [ 8456.409233][ T254] ip6_dst_alloc+0x23/0x90 [ 8456.409233][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8456.409233][ T254] ip6_pol_route+0x56f/0x840 [ 8456.409233][ T254] fib6_rule_lookup+0x334/0x630 [ 8456.409233][ T254] ip6_route_output_flags+0x259/0x480 [ 8456.409233][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8456.409233][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8456.409233][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.409233][ T254] netlink_unicast+0x449/0x710 [ 8456.409233][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.409233][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.409233][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.409233][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.409233][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.409233][ T254] [ 8456.413288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.413288][ T254] netdev_get_by_index+0x5e/0x80 [ 8456.413288][ T254] fib6_nh_init+0x3d8/0x1580 [ 8456.413288][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8456.413288][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8456.413288][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8456.413288][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8456.413288][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8456.413288][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8456.413288][ T254] addrconf_dad_begin+0x310/0x670 [ 8456.413288][ T254] addrconf_dad_work+0x10b/0xab0 [ 8456.413288][ T254] process_one_work+0x84d/0x18a0 [ 8456.413288][ T254] worker_thread+0x587/0xd30 [ 8456.413288][ T254] kthread+0x28a/0x350 [ 8456.413288][ T254] ret_from_fork+0x31/0x70 [ 8456.413288][ T254] ret_from_fork_asm+0x1a/0x30 [ 8456.413288][ T254] [ 8456.427379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.427379][ T254] netdev_get_by_index+0x5e/0x80 [ 8456.427379][ T254] fib6_nh_init+0x3d8/0x1580 [ 8456.427379][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8456.427379][ T254] ip6_route_add+0x1c/0x140 [ 8456.427379][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8456.427379][ T254] inet6_addr_add+0x4f8/0xa40 [ 8456.427379][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8456.427379][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8456.427379][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.427379][ T254] netlink_unicast+0x449/0x710 [ 8456.427379][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.427379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.427379][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.427379][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.427379][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.427379][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8456.427379][ T254] [ 8456.434495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.434495][ T254] netdev_get_by_index+0x5e/0x80 [ 8456.434495][ T254] fib6_nh_init+0x3d8/0x1580 [ 8456.434495][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8456.434495][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8456.434495][ T254] ipv6_add_addr+0x411/0x2000 [ 8456.434495][ T254] inet6_addr_add+0x30e/0xa40 [ 8456.434495][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8456.434495][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8456.434495][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.434495][ T254] netlink_unicast+0x449/0x710 [ 8456.434495][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.434495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.434495][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.434495][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.434495][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.434495][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8456.434495][ T254] [ 8456.441557][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.441557][ T254] netdev_get_by_index+0x5e/0x80 [ 8456.441557][ T254] fib6_nh_init+0x3d8/0x1580 [ 8456.441557][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8456.441557][ T254] ip6_route_add+0x1c/0x140 [ 8456.441557][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8456.441557][ T254] addrconf_add_dev+0xe2/0x170 [ 8456.441557][ T254] inet6_addr_add+0x12f/0xa40 [ 8456.441557][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8456.441557][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8456.441557][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.441557][ T254] netlink_unicast+0x449/0x710 [ 8456.441557][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.441557][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.441557][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.441557][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.441557][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.441557][ T254] [ 8456.448514][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.448514][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8456.448514][ T254] ipv6_find_idev+0x102/0x170 [ 8456.448514][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8456.448514][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8456.448514][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.448514][ T254] netlink_unicast+0x449/0x710 [ 8456.448514][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.448514][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.448514][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.448514][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.448514][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.448514][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8456.448514][ T254] [ 8456.453886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8456.453886][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8456.453886][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8456.453886][ T254] ipv6_find_idev+0x102/0x170 [ 8456.453886][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8456.453886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8456.453886][ T254] netlink_rcv_skb+0x130/0x360 [ 8456.453886][ T254] netlink_unicast+0x449/0x710 [ 8456.453886][ T254] netlink_sendmsg+0x723/0xbe0 [ 8456.453886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8456.453886][ T254] ___sys_sendmsg+0xee/0x170 [ 8456.453886][ T254] __sys_sendmsg+0xcd/0x170 [ 8456.453886][ T254] do_syscall_64+0xc6/0x1e0 [ 8456.453886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8456.453886][ T254] [ 8466.823991][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8466.824472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.824472][ T254] dst_init+0x84/0x4a0 [ 8466.824472][ T254] dst_alloc+0x97/0x150 [ 8466.824472][ T254] ip6_dst_alloc+0x23/0x90 [ 8466.824472][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8466.824472][ T254] ip6_pol_route+0x56f/0x840 [ 8466.824472][ T254] fib6_rule_lookup+0x334/0x630 [ 8466.824472][ T254] ip6_route_output_flags+0x259/0x480 [ 8466.824472][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8466.824472][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8466.824472][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.824472][ T254] netlink_unicast+0x449/0x710 [ 8466.824472][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.824472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.824472][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.824472][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.824472][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.824472][ T254] [ 8466.826670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.826670][ T254] netdev_get_by_index+0x5e/0x80 [ 8466.826670][ T254] fib6_nh_init+0x3d8/0x1580 [ 8466.826670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8466.826670][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8466.826670][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8466.826670][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8466.826670][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8466.826670][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8466.826670][ T254] addrconf_dad_begin+0x310/0x670 [ 8466.826670][ T254] addrconf_dad_work+0x10b/0xab0 [ 8466.826670][ T254] process_one_work+0x84d/0x18a0 [ 8466.826670][ T254] worker_thread+0x587/0xd30 [ 8466.826670][ T254] kthread+0x28a/0x350 [ 8466.826670][ T254] ret_from_fork+0x31/0x70 [ 8466.826670][ T254] ret_from_fork_asm+0x1a/0x30 [ 8466.826670][ T254] [ 8466.828826][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.828826][ T254] netdev_get_by_index+0x5e/0x80 [ 8466.828826][ T254] fib6_nh_init+0x3d8/0x1580 [ 8466.828826][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8466.828826][ T254] ip6_route_add+0x1c/0x140 [ 8466.828826][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8466.828826][ T254] inet6_addr_add+0x4f8/0xa40 [ 8466.828826][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8466.828826][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8466.828826][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.828826][ T254] netlink_unicast+0x449/0x710 [ 8466.828826][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.828826][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.828826][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.828826][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.828826][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.828826][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8466.828826][ T254] [ 8466.831068][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.831068][ T254] netdev_get_by_index+0x5e/0x80 [ 8466.831068][ T254] fib6_nh_init+0x3d8/0x1580 [ 8466.831068][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8466.831068][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8466.831068][ T254] ipv6_add_addr+0x411/0x2000 [ 8466.831068][ T254] inet6_addr_add+0x30e/0xa40 [ 8466.831068][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8466.831068][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8466.831068][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.831068][ T254] netlink_unicast+0x449/0x710 [ 8466.831068][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.831068][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.831068][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.831068][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.831068][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.831068][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8466.831068][ T254] [ 8466.833316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.833316][ T254] netdev_get_by_index+0x5e/0x80 [ 8466.833316][ T254] fib6_nh_init+0x3d8/0x1580 [ 8466.833316][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8466.833316][ T254] ip6_route_add+0x1c/0x140 [ 8466.833316][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8466.833316][ T254] addrconf_add_dev+0xe2/0x170 [ 8466.833316][ T254] inet6_addr_add+0x12f/0xa40 [ 8466.833316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8466.833316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8466.833316][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.833316][ T254] netlink_unicast+0x449/0x710 [ 8466.833316][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.833316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.833316][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.833316][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.833316][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.833316][ T254] [ 8466.835517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.835517][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8466.835517][ T254] ipv6_find_idev+0x102/0x170 [ 8466.835517][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8466.835517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8466.835517][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.835517][ T254] netlink_unicast+0x449/0x710 [ 8466.835517][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.835517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.835517][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.835517][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.835517][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.835517][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8466.835517][ T254] [ 8466.837266][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8466.837266][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8466.837266][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8466.837266][ T254] ipv6_find_idev+0x102/0x170 [ 8466.837266][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8466.837266][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8466.837266][ T254] netlink_rcv_skb+0x130/0x360 [ 8466.837266][ T254] netlink_unicast+0x449/0x710 [ 8466.837266][ T254] netlink_sendmsg+0x723/0xbe0 [ 8466.837266][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8466.837266][ T254] ___sys_sendmsg+0xee/0x170 [ 8466.837266][ T254] __sys_sendmsg+0xcd/0x170 [ 8466.837266][ T254] do_syscall_64+0xc6/0x1e0 [ 8466.837266][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8466.837266][ T254] [ 8477.079876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8477.080338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.080338][ T254] dst_init+0x84/0x4a0 [ 8477.080338][ T254] dst_alloc+0x97/0x150 [ 8477.080338][ T254] ip6_dst_alloc+0x23/0x90 [ 8477.080338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8477.080338][ T254] ip6_pol_route+0x56f/0x840 [ 8477.080338][ T254] fib6_rule_lookup+0x334/0x630 [ 8477.080338][ T254] ip6_route_output_flags+0x259/0x480 [ 8477.080338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8477.080338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8477.080338][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.080338][ T254] netlink_unicast+0x449/0x710 [ 8477.080338][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.080338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.080338][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.080338][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.080338][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.080338][ T254] [ 8477.082548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.082548][ T254] netdev_get_by_index+0x5e/0x80 [ 8477.082548][ T254] fib6_nh_init+0x3d8/0x1580 [ 8477.082548][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8477.082548][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8477.082548][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8477.082548][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8477.082548][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8477.082548][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8477.082548][ T254] addrconf_dad_begin+0x310/0x670 [ 8477.082548][ T254] addrconf_dad_work+0x10b/0xab0 [ 8477.082548][ T254] process_one_work+0x84d/0x18a0 [ 8477.082548][ T254] worker_thread+0x587/0xd30 [ 8477.082548][ T254] kthread+0x28a/0x350 [ 8477.082548][ T254] ret_from_fork+0x31/0x70 [ 8477.082548][ T254] ret_from_fork_asm+0x1a/0x30 [ 8477.082548][ T254] [ 8477.084696][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.084696][ T254] netdev_get_by_index+0x5e/0x80 [ 8477.084696][ T254] fib6_nh_init+0x3d8/0x1580 [ 8477.084696][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8477.084696][ T254] ip6_route_add+0x1c/0x140 [ 8477.084696][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8477.084696][ T254] inet6_addr_add+0x4f8/0xa40 [ 8477.084696][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8477.084696][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8477.084696][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.084696][ T254] netlink_unicast+0x449/0x710 [ 8477.084696][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.084696][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.084696][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.084696][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.084696][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.084696][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8477.084696][ T254] [ 8477.086944][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.086944][ T254] netdev_get_by_index+0x5e/0x80 [ 8477.086944][ T254] fib6_nh_init+0x3d8/0x1580 [ 8477.086944][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8477.086944][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8477.086944][ T254] ipv6_add_addr+0x411/0x2000 [ 8477.086944][ T254] inet6_addr_add+0x30e/0xa40 [ 8477.086944][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8477.086944][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8477.086944][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.086944][ T254] netlink_unicast+0x449/0x710 [ 8477.086944][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.086944][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.086944][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.086944][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.086944][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.086944][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8477.086944][ T254] [ 8477.089194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.089194][ T254] netdev_get_by_index+0x5e/0x80 [ 8477.089194][ T254] fib6_nh_init+0x3d8/0x1580 [ 8477.089194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8477.089194][ T254] ip6_route_add+0x1c/0x140 [ 8477.089194][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8477.089194][ T254] addrconf_add_dev+0xe2/0x170 [ 8477.089194][ T254] inet6_addr_add+0x12f/0xa40 [ 8477.089194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8477.089194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8477.089194][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.089194][ T254] netlink_unicast+0x449/0x710 [ 8477.089194][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.089194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.089194][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.089194][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.089194][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.089194][ T254] [ 8477.091398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.091398][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8477.091398][ T254] ipv6_find_idev+0x102/0x170 [ 8477.091398][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8477.091398][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8477.091398][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.091398][ T254] netlink_unicast+0x449/0x710 [ 8477.091398][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.091398][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.091398][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.091398][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.091398][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.091398][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8477.091398][ T254] [ 8477.093124][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8477.093124][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8477.093124][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8477.093124][ T254] ipv6_find_idev+0x102/0x170 [ 8477.093124][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8477.093124][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8477.093124][ T254] netlink_rcv_skb+0x130/0x360 [ 8477.093124][ T254] netlink_unicast+0x449/0x710 [ 8477.093124][ T254] netlink_sendmsg+0x723/0xbe0 [ 8477.093124][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8477.093124][ T254] ___sys_sendmsg+0xee/0x170 [ 8477.093124][ T254] __sys_sendmsg+0xcd/0x170 [ 8477.093124][ T254] do_syscall_64+0xc6/0x1e0 [ 8477.093124][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8477.093124][ T254] [ 8487.335912][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8487.336432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.336432][ T254] dst_init+0x84/0x4a0 [ 8487.336432][ T254] dst_alloc+0x97/0x150 [ 8487.336432][ T254] ip6_dst_alloc+0x23/0x90 [ 8487.336432][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8487.336432][ T254] ip6_pol_route+0x56f/0x840 [ 8487.336432][ T254] fib6_rule_lookup+0x334/0x630 [ 8487.336432][ T254] ip6_route_output_flags+0x259/0x480 [ 8487.336432][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8487.336432][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8487.336432][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.336432][ T254] netlink_unicast+0x449/0x710 [ 8487.336432][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.336432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.336432][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.336432][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.336432][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.336432][ T254] [ 8487.338666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.338666][ T254] netdev_get_by_index+0x5e/0x80 [ 8487.338666][ T254] fib6_nh_init+0x3d8/0x1580 [ 8487.338666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8487.338666][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8487.338666][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8487.338666][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8487.338666][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8487.338666][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8487.338666][ T254] addrconf_dad_begin+0x310/0x670 [ 8487.338666][ T254] addrconf_dad_work+0x10b/0xab0 [ 8487.338666][ T254] process_one_work+0x84d/0x18a0 [ 8487.338666][ T254] worker_thread+0x587/0xd30 [ 8487.338666][ T254] kthread+0x28a/0x350 [ 8487.338666][ T254] ret_from_fork+0x31/0x70 [ 8487.338666][ T254] ret_from_fork_asm+0x1a/0x30 [ 8487.338666][ T254] [ 8487.340807][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.340807][ T254] netdev_get_by_index+0x5e/0x80 [ 8487.340807][ T254] fib6_nh_init+0x3d8/0x1580 [ 8487.340807][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8487.340807][ T254] ip6_route_add+0x1c/0x140 [ 8487.340807][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8487.340807][ T254] inet6_addr_add+0x4f8/0xa40 [ 8487.340807][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8487.340807][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8487.340807][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.340807][ T254] netlink_unicast+0x449/0x710 [ 8487.340807][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.340807][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.340807][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.340807][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.340807][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.340807][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8487.340807][ T254] [ 8487.343054][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.343054][ T254] netdev_get_by_index+0x5e/0x80 [ 8487.343054][ T254] fib6_nh_init+0x3d8/0x1580 [ 8487.343054][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8487.343054][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8487.343054][ T254] ipv6_add_addr+0x411/0x2000 [ 8487.343054][ T254] inet6_addr_add+0x30e/0xa40 [ 8487.343054][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8487.343054][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8487.343054][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.343054][ T254] netlink_unicast+0x449/0x710 [ 8487.343054][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.343054][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.343054][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.343054][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.343054][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.343054][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8487.343054][ T254] [ 8487.345310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.345310][ T254] netdev_get_by_index+0x5e/0x80 [ 8487.345310][ T254] fib6_nh_init+0x3d8/0x1580 [ 8487.345310][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8487.345310][ T254] ip6_route_add+0x1c/0x140 [ 8487.345310][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8487.345310][ T254] addrconf_add_dev+0xe2/0x170 [ 8487.345310][ T254] inet6_addr_add+0x12f/0xa40 [ 8487.345310][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8487.345310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8487.345310][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.345310][ T254] netlink_unicast+0x449/0x710 [ 8487.345310][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.345310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.345310][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.345310][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.345310][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.345310][ T254] [ 8487.347621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.347621][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8487.347621][ T254] ipv6_find_idev+0x102/0x170 [ 8487.347621][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8487.347621][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8487.347621][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.347621][ T254] netlink_unicast+0x449/0x710 [ 8487.347621][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.347621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.347621][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.347621][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.347621][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.347621][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8487.347621][ T254] [ 8487.349359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8487.349359][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8487.349359][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8487.349359][ T254] ipv6_find_idev+0x102/0x170 [ 8487.349359][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8487.349359][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8487.349359][ T254] netlink_rcv_skb+0x130/0x360 [ 8487.349359][ T254] netlink_unicast+0x449/0x710 [ 8487.349359][ T254] netlink_sendmsg+0x723/0xbe0 [ 8487.349359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8487.349359][ T254] ___sys_sendmsg+0xee/0x170 [ 8487.349359][ T254] __sys_sendmsg+0xcd/0x170 [ 8487.349359][ T254] do_syscall_64+0xc6/0x1e0 [ 8487.349359][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8487.349359][ T254] [ 8497.591900][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8497.592386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.592386][ T254] dst_init+0x84/0x4a0 [ 8497.592386][ T254] dst_alloc+0x97/0x150 [ 8497.592386][ T254] ip6_dst_alloc+0x23/0x90 [ 8497.592386][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8497.592386][ T254] ip6_pol_route+0x56f/0x840 [ 8497.592386][ T254] fib6_rule_lookup+0x334/0x630 [ 8497.592386][ T254] ip6_route_output_flags+0x259/0x480 [ 8497.592386][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8497.592386][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8497.592386][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.592386][ T254] netlink_unicast+0x449/0x710 [ 8497.592386][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.592386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.592386][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.592386][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.592386][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.592386][ T254] [ 8497.594590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.594590][ T254] netdev_get_by_index+0x5e/0x80 [ 8497.594590][ T254] fib6_nh_init+0x3d8/0x1580 [ 8497.594590][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8497.594590][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8497.594590][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8497.594590][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8497.594590][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8497.594590][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8497.594590][ T254] addrconf_dad_begin+0x310/0x670 [ 8497.594590][ T254] addrconf_dad_work+0x10b/0xab0 [ 8497.594590][ T254] process_one_work+0x84d/0x18a0 [ 8497.594590][ T254] worker_thread+0x587/0xd30 [ 8497.594590][ T254] kthread+0x28a/0x350 [ 8497.594590][ T254] ret_from_fork+0x31/0x70 [ 8497.594590][ T254] ret_from_fork_asm+0x1a/0x30 [ 8497.594590][ T254] [ 8497.596745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.596745][ T254] netdev_get_by_index+0x5e/0x80 [ 8497.596745][ T254] fib6_nh_init+0x3d8/0x1580 [ 8497.596745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8497.596745][ T254] ip6_route_add+0x1c/0x140 [ 8497.596745][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8497.596745][ T254] inet6_addr_add+0x4f8/0xa40 [ 8497.596745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8497.596745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8497.596745][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.596745][ T254] netlink_unicast+0x449/0x710 [ 8497.596745][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.596745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.596745][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.596745][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.596745][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.596745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8497.596745][ T254] [ 8497.599015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.599015][ T254] netdev_get_by_index+0x5e/0x80 [ 8497.599015][ T254] fib6_nh_init+0x3d8/0x1580 [ 8497.599015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8497.599015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8497.599015][ T254] ipv6_add_addr+0x411/0x2000 [ 8497.599015][ T254] inet6_addr_add+0x30e/0xa40 [ 8497.599015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8497.599015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8497.599015][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.599015][ T254] netlink_unicast+0x449/0x710 [ 8497.599015][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.599015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.599015][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.599015][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.599015][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.599015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8497.599015][ T254] [ 8497.601301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.601301][ T254] netdev_get_by_index+0x5e/0x80 [ 8497.601301][ T254] fib6_nh_init+0x3d8/0x1580 [ 8497.601301][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8497.601301][ T254] ip6_route_add+0x1c/0x140 [ 8497.601301][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8497.601301][ T254] addrconf_add_dev+0xe2/0x170 [ 8497.601301][ T254] inet6_addr_add+0x12f/0xa40 [ 8497.601301][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8497.601301][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8497.601301][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.601301][ T254] netlink_unicast+0x449/0x710 [ 8497.601301][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.601301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.601301][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.601301][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.601301][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.601301][ T254] [ 8497.603498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.603498][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8497.603498][ T254] ipv6_find_idev+0x102/0x170 [ 8497.603498][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8497.603498][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8497.603498][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.603498][ T254] netlink_unicast+0x449/0x710 [ 8497.603498][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.603498][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.603498][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.603498][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.603498][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.603498][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8497.603498][ T254] [ 8497.605228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8497.605228][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8497.605228][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8497.605228][ T254] ipv6_find_idev+0x102/0x170 [ 8497.605228][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8497.605228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8497.605228][ T254] netlink_rcv_skb+0x130/0x360 [ 8497.605228][ T254] netlink_unicast+0x449/0x710 [ 8497.605228][ T254] netlink_sendmsg+0x723/0xbe0 [ 8497.605228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8497.605228][ T254] ___sys_sendmsg+0xee/0x170 [ 8497.605228][ T254] __sys_sendmsg+0xcd/0x170 [ 8497.605228][ T254] do_syscall_64+0xc6/0x1e0 [ 8497.605228][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8497.605228][ T254] [ 8507.847881][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8507.848383][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.848383][ T254] dst_init+0x84/0x4a0 [ 8507.848383][ T254] dst_alloc+0x97/0x150 [ 8507.848383][ T254] ip6_dst_alloc+0x23/0x90 [ 8507.848383][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8507.848383][ T254] ip6_pol_route+0x56f/0x840 [ 8507.848383][ T254] fib6_rule_lookup+0x334/0x630 [ 8507.848383][ T254] ip6_route_output_flags+0x259/0x480 [ 8507.848383][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8507.848383][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8507.848383][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.848383][ T254] netlink_unicast+0x449/0x710 [ 8507.848383][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.848383][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.848383][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.848383][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.848383][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.848383][ T254] [ 8507.850845][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.850845][ T254] netdev_get_by_index+0x5e/0x80 [ 8507.850845][ T254] fib6_nh_init+0x3d8/0x1580 [ 8507.850845][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8507.850845][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8507.850845][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8507.850845][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8507.850845][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8507.850845][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8507.850845][ T254] addrconf_dad_begin+0x310/0x670 [ 8507.850845][ T254] addrconf_dad_work+0x10b/0xab0 [ 8507.850845][ T254] process_one_work+0x84d/0x18a0 [ 8507.850845][ T254] worker_thread+0x587/0xd30 [ 8507.850845][ T254] kthread+0x28a/0x350 [ 8507.850845][ T254] ret_from_fork+0x31/0x70 [ 8507.850845][ T254] ret_from_fork_asm+0x1a/0x30 [ 8507.850845][ T254] [ 8507.853229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.853229][ T254] netdev_get_by_index+0x5e/0x80 [ 8507.853229][ T254] fib6_nh_init+0x3d8/0x1580 [ 8507.853229][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8507.853229][ T254] ip6_route_add+0x1c/0x140 [ 8507.853229][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8507.853229][ T254] inet6_addr_add+0x4f8/0xa40 [ 8507.853229][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8507.853229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8507.853229][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.853229][ T254] netlink_unicast+0x449/0x710 [ 8507.853229][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.853229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.853229][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.853229][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.853229][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.853229][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8507.853229][ T254] [ 8507.855725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.855725][ T254] netdev_get_by_index+0x5e/0x80 [ 8507.855725][ T254] fib6_nh_init+0x3d8/0x1580 [ 8507.855725][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8507.855725][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8507.855725][ T254] ipv6_add_addr+0x411/0x2000 [ 8507.855725][ T254] inet6_addr_add+0x30e/0xa40 [ 8507.855725][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8507.855725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8507.855725][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.855725][ T254] netlink_unicast+0x449/0x710 [ 8507.855725][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.855725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.855725][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.855725][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.855725][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.855725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8507.855725][ T254] [ 8507.858226][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.858226][ T254] netdev_get_by_index+0x5e/0x80 [ 8507.858226][ T254] fib6_nh_init+0x3d8/0x1580 [ 8507.858226][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8507.858226][ T254] ip6_route_add+0x1c/0x140 [ 8507.858226][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8507.858226][ T254] addrconf_add_dev+0xe2/0x170 [ 8507.858226][ T254] inet6_addr_add+0x12f/0xa40 [ 8507.858226][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8507.858226][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8507.858226][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.858226][ T254] netlink_unicast+0x449/0x710 [ 8507.858226][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.858226][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.858226][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.858226][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.858226][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.858226][ T254] [ 8507.860652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.860652][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8507.860652][ T254] ipv6_find_idev+0x102/0x170 [ 8507.860652][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8507.860652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8507.860652][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.860652][ T254] netlink_unicast+0x449/0x710 [ 8507.860652][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.860652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.860652][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.860652][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.860652][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.860652][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8507.860652][ T254] [ 8507.862564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8507.862564][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8507.862564][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8507.862564][ T254] ipv6_find_idev+0x102/0x170 [ 8507.862564][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8507.862564][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8507.862564][ T254] netlink_rcv_skb+0x130/0x360 [ 8507.862564][ T254] netlink_unicast+0x449/0x710 [ 8507.862564][ T254] netlink_sendmsg+0x723/0xbe0 [ 8507.862564][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8507.862564][ T254] ___sys_sendmsg+0xee/0x170 [ 8507.862564][ T254] __sys_sendmsg+0xcd/0x170 [ 8507.862564][ T254] do_syscall_64+0xc6/0x1e0 [ 8507.862564][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8507.862564][ T254] [ 8518.103864][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8518.104436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.104436][ T254] dst_init+0x84/0x4a0 [ 8518.104436][ T254] dst_alloc+0x97/0x150 [ 8518.104436][ T254] ip6_dst_alloc+0x23/0x90 [ 8518.104436][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8518.104436][ T254] ip6_pol_route+0x56f/0x840 [ 8518.104436][ T254] fib6_rule_lookup+0x334/0x630 [ 8518.104436][ T254] ip6_route_output_flags+0x259/0x480 [ 8518.104436][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8518.104436][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8518.104436][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.104436][ T254] netlink_unicast+0x449/0x710 [ 8518.104436][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.104436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.104436][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.104436][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.104436][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.104436][ T254] [ 8518.106729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.106729][ T254] netdev_get_by_index+0x5e/0x80 [ 8518.106729][ T254] fib6_nh_init+0x3d8/0x1580 [ 8518.106729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8518.106729][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8518.106729][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8518.106729][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8518.106729][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8518.106729][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8518.106729][ T254] addrconf_dad_begin+0x310/0x670 [ 8518.106729][ T254] addrconf_dad_work+0x10b/0xab0 [ 8518.106729][ T254] process_one_work+0x84d/0x18a0 [ 8518.106729][ T254] worker_thread+0x587/0xd30 [ 8518.106729][ T254] kthread+0x28a/0x350 [ 8518.106729][ T254] ret_from_fork+0x31/0x70 [ 8518.106729][ T254] ret_from_fork_asm+0x1a/0x30 [ 8518.106729][ T254] [ 8518.108948][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.108948][ T254] netdev_get_by_index+0x5e/0x80 [ 8518.108948][ T254] fib6_nh_init+0x3d8/0x1580 [ 8518.108948][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8518.108948][ T254] ip6_route_add+0x1c/0x140 [ 8518.108948][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8518.108948][ T254] inet6_addr_add+0x4f8/0xa40 [ 8518.108948][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8518.108948][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8518.108948][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.108948][ T254] netlink_unicast+0x449/0x710 [ 8518.108948][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.108948][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.108948][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.108948][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.108948][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.108948][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8518.108948][ T254] [ 8518.111249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.111249][ T254] netdev_get_by_index+0x5e/0x80 [ 8518.111249][ T254] fib6_nh_init+0x3d8/0x1580 [ 8518.111249][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8518.111249][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8518.111249][ T254] ipv6_add_addr+0x411/0x2000 [ 8518.111249][ T254] inet6_addr_add+0x30e/0xa40 [ 8518.111249][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8518.111249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8518.111249][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.111249][ T254] netlink_unicast+0x449/0x710 [ 8518.111249][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.111249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.111249][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.111249][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.111249][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.111249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8518.111249][ T254] [ 8518.113556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.113556][ T254] netdev_get_by_index+0x5e/0x80 [ 8518.113556][ T254] fib6_nh_init+0x3d8/0x1580 [ 8518.113556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8518.113556][ T254] ip6_route_add+0x1c/0x140 [ 8518.113556][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8518.113556][ T254] addrconf_add_dev+0xe2/0x170 [ 8518.113556][ T254] inet6_addr_add+0x12f/0xa40 [ 8518.113556][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8518.113556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8518.113556][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.113556][ T254] netlink_unicast+0x449/0x710 [ 8518.113556][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.113556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.113556][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.113556][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.113556][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.113556][ T254] [ 8518.115843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.115843][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8518.115843][ T254] ipv6_find_idev+0x102/0x170 [ 8518.115843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8518.115843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8518.115843][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.115843][ T254] netlink_unicast+0x449/0x710 [ 8518.115843][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.115843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.115843][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.115843][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.115843][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.115843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8518.115843][ T254] [ 8518.117621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8518.117621][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8518.117621][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8518.117621][ T254] ipv6_find_idev+0x102/0x170 [ 8518.117621][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8518.117621][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8518.117621][ T254] netlink_rcv_skb+0x130/0x360 [ 8518.117621][ T254] netlink_unicast+0x449/0x710 [ 8518.117621][ T254] netlink_sendmsg+0x723/0xbe0 [ 8518.117621][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8518.117621][ T254] ___sys_sendmsg+0xee/0x170 [ 8518.117621][ T254] __sys_sendmsg+0xcd/0x170 [ 8518.117621][ T254] do_syscall_64+0xc6/0x1e0 [ 8518.117621][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8518.117621][ T254] [ 8528.416807][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8528.417288][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.417288][ T254] dst_init+0x84/0x4a0 [ 8528.417288][ T254] dst_alloc+0x97/0x150 [ 8528.417288][ T254] ip6_dst_alloc+0x23/0x90 [ 8528.417288][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8528.417288][ T254] ip6_pol_route+0x56f/0x840 [ 8528.417288][ T254] fib6_rule_lookup+0x334/0x630 [ 8528.417288][ T254] ip6_route_output_flags+0x259/0x480 [ 8528.417288][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8528.417288][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8528.417288][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.417288][ T254] netlink_unicast+0x449/0x710 [ 8528.417288][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.417288][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.417288][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.417288][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.417288][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.417288][ T254] [ 8528.419559][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.419559][ T254] netdev_get_by_index+0x5e/0x80 [ 8528.419559][ T254] fib6_nh_init+0x3d8/0x1580 [ 8528.419559][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8528.419559][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8528.419559][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8528.419559][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8528.419559][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8528.419559][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8528.419559][ T254] addrconf_dad_begin+0x310/0x670 [ 8528.419559][ T254] addrconf_dad_work+0x10b/0xab0 [ 8528.419559][ T254] process_one_work+0x84d/0x18a0 [ 8528.419559][ T254] worker_thread+0x587/0xd30 [ 8528.419559][ T254] kthread+0x28a/0x350 [ 8528.419559][ T254] ret_from_fork+0x31/0x70 [ 8528.419559][ T254] ret_from_fork_asm+0x1a/0x30 [ 8528.419559][ T254] [ 8528.421748][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.421748][ T254] netdev_get_by_index+0x5e/0x80 [ 8528.421748][ T254] fib6_nh_init+0x3d8/0x1580 [ 8528.421748][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8528.421748][ T254] ip6_route_add+0x1c/0x140 [ 8528.421748][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8528.421748][ T254] inet6_addr_add+0x4f8/0xa40 [ 8528.421748][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8528.421748][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8528.421748][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.421748][ T254] netlink_unicast+0x449/0x710 [ 8528.421748][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.421748][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.421748][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.421748][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.421748][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.421748][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8528.421748][ T254] [ 8528.424065][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.424065][ T254] netdev_get_by_index+0x5e/0x80 [ 8528.424065][ T254] fib6_nh_init+0x3d8/0x1580 [ 8528.424065][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8528.424065][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8528.424065][ T254] ipv6_add_addr+0x411/0x2000 [ 8528.424065][ T254] inet6_addr_add+0x30e/0xa40 [ 8528.424065][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8528.424065][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8528.424065][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.424065][ T254] netlink_unicast+0x449/0x710 [ 8528.424065][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.424065][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.424065][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.424065][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.424065][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.424065][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8528.424065][ T254] [ 8528.426379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.426379][ T254] netdev_get_by_index+0x5e/0x80 [ 8528.426379][ T254] fib6_nh_init+0x3d8/0x1580 [ 8528.426379][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8528.426379][ T254] ip6_route_add+0x1c/0x140 [ 8528.426379][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8528.426379][ T254] addrconf_add_dev+0xe2/0x170 [ 8528.426379][ T254] inet6_addr_add+0x12f/0xa40 [ 8528.426379][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8528.426379][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8528.426379][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.426379][ T254] netlink_unicast+0x449/0x710 [ 8528.426379][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.426379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.426379][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.426379][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.426379][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.426379][ T254] [ 8528.428681][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.428681][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8528.428681][ T254] ipv6_find_idev+0x102/0x170 [ 8528.428681][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8528.428681][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8528.428681][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.428681][ T254] netlink_unicast+0x449/0x710 [ 8528.428681][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.428681][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.428681][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.428681][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.428681][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.428681][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8528.428681][ T254] [ 8528.430462][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8528.430462][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8528.430462][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8528.430462][ T254] ipv6_find_idev+0x102/0x170 [ 8528.430462][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8528.430462][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8528.430462][ T254] netlink_rcv_skb+0x130/0x360 [ 8528.430462][ T254] netlink_unicast+0x449/0x710 [ 8528.430462][ T254] netlink_sendmsg+0x723/0xbe0 [ 8528.430462][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8528.430462][ T254] ___sys_sendmsg+0xee/0x170 [ 8528.430462][ T254] __sys_sendmsg+0xcd/0x170 [ 8528.430462][ T254] do_syscall_64+0xc6/0x1e0 [ 8528.430462][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8528.430462][ T254] [ 8538.671871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8538.672378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.672378][ T254] dst_init+0x84/0x4a0 [ 8538.672378][ T254] dst_alloc+0x97/0x150 [ 8538.672378][ T254] ip6_dst_alloc+0x23/0x90 [ 8538.672378][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8538.672378][ T254] ip6_pol_route+0x56f/0x840 [ 8538.672378][ T254] fib6_rule_lookup+0x334/0x630 [ 8538.672378][ T254] ip6_route_output_flags+0x259/0x480 [ 8538.672378][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8538.672378][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8538.672378][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.672378][ T254] netlink_unicast+0x449/0x710 [ 8538.672378][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.672378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.672378][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.672378][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.672378][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.672378][ T254] [ 8538.674650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.674650][ T254] netdev_get_by_index+0x5e/0x80 [ 8538.674650][ T254] fib6_nh_init+0x3d8/0x1580 [ 8538.674650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8538.674650][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8538.674650][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8538.674650][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8538.674650][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8538.674650][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8538.674650][ T254] addrconf_dad_begin+0x310/0x670 [ 8538.674650][ T254] addrconf_dad_work+0x10b/0xab0 [ 8538.674650][ T254] process_one_work+0x84d/0x18a0 [ 8538.674650][ T254] worker_thread+0x587/0xd30 [ 8538.674650][ T254] kthread+0x28a/0x350 [ 8538.674650][ T254] ret_from_fork+0x31/0x70 [ 8538.674650][ T254] ret_from_fork_asm+0x1a/0x30 [ 8538.674650][ T254] [ 8538.676875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.676875][ T254] netdev_get_by_index+0x5e/0x80 [ 8538.676875][ T254] fib6_nh_init+0x3d8/0x1580 [ 8538.676875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8538.676875][ T254] ip6_route_add+0x1c/0x140 [ 8538.676875][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8538.676875][ T254] inet6_addr_add+0x4f8/0xa40 [ 8538.676875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8538.676875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8538.676875][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.676875][ T254] netlink_unicast+0x449/0x710 [ 8538.676875][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.676875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.676875][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.676875][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.676875][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.676875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8538.676875][ T254] [ 8538.679190][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.679190][ T254] netdev_get_by_index+0x5e/0x80 [ 8538.679190][ T254] fib6_nh_init+0x3d8/0x1580 [ 8538.679190][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8538.679190][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8538.679190][ T254] ipv6_add_addr+0x411/0x2000 [ 8538.679190][ T254] inet6_addr_add+0x30e/0xa40 [ 8538.679190][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8538.679190][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8538.679190][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.679190][ T254] netlink_unicast+0x449/0x710 [ 8538.679190][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.679190][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.679190][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.679190][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.679190][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.679190][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8538.679190][ T254] [ 8538.681499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.681499][ T254] netdev_get_by_index+0x5e/0x80 [ 8538.681499][ T254] fib6_nh_init+0x3d8/0x1580 [ 8538.681499][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8538.681499][ T254] ip6_route_add+0x1c/0x140 [ 8538.681499][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8538.681499][ T254] addrconf_add_dev+0xe2/0x170 [ 8538.681499][ T254] inet6_addr_add+0x12f/0xa40 [ 8538.681499][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8538.681499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8538.681499][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.681499][ T254] netlink_unicast+0x449/0x710 [ 8538.681499][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.681499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.681499][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.681499][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.681499][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.681499][ T254] [ 8538.683768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.683768][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8538.683768][ T254] ipv6_find_idev+0x102/0x170 [ 8538.683768][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8538.683768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8538.683768][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.683768][ T254] netlink_unicast+0x449/0x710 [ 8538.683768][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.683768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.683768][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.683768][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.683768][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.683768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8538.683768][ T254] [ 8538.685549][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8538.685549][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8538.685549][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8538.685549][ T254] ipv6_find_idev+0x102/0x170 [ 8538.685549][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8538.685549][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8538.685549][ T254] netlink_rcv_skb+0x130/0x360 [ 8538.685549][ T254] netlink_unicast+0x449/0x710 [ 8538.685549][ T254] netlink_sendmsg+0x723/0xbe0 [ 8538.685549][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8538.685549][ T254] ___sys_sendmsg+0xee/0x170 [ 8538.685549][ T254] __sys_sendmsg+0xcd/0x170 [ 8538.685549][ T254] do_syscall_64+0xc6/0x1e0 [ 8538.685549][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8538.685549][ T254] [ 8548.927840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8548.928320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.928320][ T254] dst_init+0x84/0x4a0 [ 8548.928320][ T254] dst_alloc+0x97/0x150 [ 8548.928320][ T254] ip6_dst_alloc+0x23/0x90 [ 8548.928320][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8548.928320][ T254] ip6_pol_route+0x56f/0x840 [ 8548.928320][ T254] fib6_rule_lookup+0x334/0x630 [ 8548.928320][ T254] ip6_route_output_flags+0x259/0x480 [ 8548.928320][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8548.928320][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8548.928320][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.928320][ T254] netlink_unicast+0x449/0x710 [ 8548.928320][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.928320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.928320][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.928320][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.928320][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.928320][ T254] [ 8548.930793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.930793][ T254] netdev_get_by_index+0x5e/0x80 [ 8548.930793][ T254] fib6_nh_init+0x3d8/0x1580 [ 8548.930793][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8548.930793][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8548.930793][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8548.930793][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8548.930793][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8548.930793][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8548.930793][ T254] addrconf_dad_begin+0x310/0x670 [ 8548.930793][ T254] addrconf_dad_work+0x10b/0xab0 [ 8548.930793][ T254] process_one_work+0x84d/0x18a0 [ 8548.930793][ T254] worker_thread+0x587/0xd30 [ 8548.930793][ T254] kthread+0x28a/0x350 [ 8548.930793][ T254] ret_from_fork+0x31/0x70 [ 8548.930793][ T254] ret_from_fork_asm+0x1a/0x30 [ 8548.930793][ T254] [ 8548.933348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.933348][ T254] netdev_get_by_index+0x5e/0x80 [ 8548.933348][ T254] fib6_nh_init+0x3d8/0x1580 [ 8548.933348][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8548.933348][ T254] ip6_route_add+0x1c/0x140 [ 8548.933348][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8548.933348][ T254] inet6_addr_add+0x4f8/0xa40 [ 8548.933348][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8548.933348][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8548.933348][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.933348][ T254] netlink_unicast+0x449/0x710 [ 8548.933348][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.933348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.933348][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.933348][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.933348][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.933348][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8548.933348][ T254] [ 8548.935871][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.935871][ T254] netdev_get_by_index+0x5e/0x80 [ 8548.935871][ T254] fib6_nh_init+0x3d8/0x1580 [ 8548.935871][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8548.935871][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8548.935871][ T254] ipv6_add_addr+0x411/0x2000 [ 8548.935871][ T254] inet6_addr_add+0x30e/0xa40 [ 8548.935871][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8548.935871][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8548.935871][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.935871][ T254] netlink_unicast+0x449/0x710 [ 8548.935871][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.935871][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.935871][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.935871][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.935871][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.935871][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8548.935871][ T254] [ 8548.938441][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.938441][ T254] netdev_get_by_index+0x5e/0x80 [ 8548.938441][ T254] fib6_nh_init+0x3d8/0x1580 [ 8548.938441][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8548.938441][ T254] ip6_route_add+0x1c/0x140 [ 8548.938441][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8548.938441][ T254] addrconf_add_dev+0xe2/0x170 [ 8548.938441][ T254] inet6_addr_add+0x12f/0xa40 [ 8548.938441][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8548.938441][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8548.938441][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.938441][ T254] netlink_unicast+0x449/0x710 [ 8548.938441][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.938441][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.938441][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.938441][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.938441][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.938441][ T254] [ 8548.940908][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.940908][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8548.940908][ T254] ipv6_find_idev+0x102/0x170 [ 8548.940908][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8548.940908][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8548.940908][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.940908][ T254] netlink_unicast+0x449/0x710 [ 8548.940908][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.940908][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.940908][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.940908][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.940908][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.940908][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8548.940908][ T254] [ 8548.942863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8548.942863][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8548.942863][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8548.942863][ T254] ipv6_find_idev+0x102/0x170 [ 8548.942863][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8548.942863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8548.942863][ T254] netlink_rcv_skb+0x130/0x360 [ 8548.942863][ T254] netlink_unicast+0x449/0x710 [ 8548.942863][ T254] netlink_sendmsg+0x723/0xbe0 [ 8548.942863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8548.942863][ T254] ___sys_sendmsg+0xee/0x170 [ 8548.942863][ T254] __sys_sendmsg+0xcd/0x170 [ 8548.942863][ T254] do_syscall_64+0xc6/0x1e0 [ 8548.942863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8548.942863][ T254] [ 8559.119843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8559.120304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.120304][ T254] dst_init+0x84/0x4a0 [ 8559.120304][ T254] dst_alloc+0x97/0x150 [ 8559.120304][ T254] ip6_dst_alloc+0x23/0x90 [ 8559.120304][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8559.120304][ T254] ip6_pol_route+0x56f/0x840 [ 8559.120304][ T254] fib6_rule_lookup+0x334/0x630 [ 8559.120304][ T254] ip6_route_output_flags+0x259/0x480 [ 8559.120304][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8559.120304][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8559.120304][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.120304][ T254] netlink_unicast+0x449/0x710 [ 8559.120304][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.120304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.120304][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.120304][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.120304][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.120304][ T254] [ 8559.122540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.122540][ T254] netdev_get_by_index+0x5e/0x80 [ 8559.122540][ T254] fib6_nh_init+0x3d8/0x1580 [ 8559.122540][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8559.122540][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8559.122540][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8559.122540][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8559.122540][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8559.122540][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8559.122540][ T254] addrconf_dad_begin+0x310/0x670 [ 8559.122540][ T254] addrconf_dad_work+0x10b/0xab0 [ 8559.122540][ T254] process_one_work+0x84d/0x18a0 [ 8559.122540][ T254] worker_thread+0x587/0xd30 [ 8559.122540][ T254] kthread+0x28a/0x350 [ 8559.122540][ T254] ret_from_fork+0x31/0x70 [ 8559.122540][ T254] ret_from_fork_asm+0x1a/0x30 [ 8559.122540][ T254] [ 8559.124757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.124757][ T254] netdev_get_by_index+0x5e/0x80 [ 8559.124757][ T254] fib6_nh_init+0x3d8/0x1580 [ 8559.124757][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8559.124757][ T254] ip6_route_add+0x1c/0x140 [ 8559.124757][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8559.124757][ T254] inet6_addr_add+0x4f8/0xa40 [ 8559.124757][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8559.124757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8559.124757][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.124757][ T254] netlink_unicast+0x449/0x710 [ 8559.124757][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.124757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.124757][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.124757][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.124757][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.124757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8559.124757][ T254] [ 8559.127011][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.127011][ T254] netdev_get_by_index+0x5e/0x80 [ 8559.127011][ T254] fib6_nh_init+0x3d8/0x1580 [ 8559.127011][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8559.127011][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8559.127011][ T254] ipv6_add_addr+0x411/0x2000 [ 8559.127011][ T254] inet6_addr_add+0x30e/0xa40 [ 8559.127011][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8559.127011][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8559.127011][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.127011][ T254] netlink_unicast+0x449/0x710 [ 8559.127011][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.127011][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.127011][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.127011][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.127011][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.127011][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8559.127011][ T254] [ 8559.129264][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.129264][ T254] netdev_get_by_index+0x5e/0x80 [ 8559.129264][ T254] fib6_nh_init+0x3d8/0x1580 [ 8559.129264][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8559.129264][ T254] ip6_route_add+0x1c/0x140 [ 8559.129264][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8559.129264][ T254] addrconf_add_dev+0xe2/0x170 [ 8559.129264][ T254] inet6_addr_add+0x12f/0xa40 [ 8559.129264][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8559.129264][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8559.129264][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.129264][ T254] netlink_unicast+0x449/0x710 [ 8559.129264][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.129264][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.129264][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.129264][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.129264][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.129264][ T254] [ 8559.131472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.131472][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8559.131472][ T254] ipv6_find_idev+0x102/0x170 [ 8559.131472][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8559.131472][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8559.131472][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.131472][ T254] netlink_unicast+0x449/0x710 [ 8559.131472][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.131472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.131472][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.131472][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.131472][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.131472][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8559.131472][ T254] [ 8559.133222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8559.133222][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8559.133222][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8559.133222][ T254] ipv6_find_idev+0x102/0x170 [ 8559.133222][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8559.133222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8559.133222][ T254] netlink_rcv_skb+0x130/0x360 [ 8559.133222][ T254] netlink_unicast+0x449/0x710 [ 8559.133222][ T254] netlink_sendmsg+0x723/0xbe0 [ 8559.133222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8559.133222][ T254] ___sys_sendmsg+0xee/0x170 [ 8559.133222][ T254] __sys_sendmsg+0xcd/0x170 [ 8559.133222][ T254] do_syscall_64+0xc6/0x1e0 [ 8559.133222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8559.133222][ T254] [ 8569.223897][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8569.224436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.224436][ T254] dst_init+0x84/0x4a0 [ 8569.224436][ T254] dst_alloc+0x97/0x150 [ 8569.224436][ T254] ip6_dst_alloc+0x23/0x90 [ 8569.224436][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8569.224436][ T254] ip6_pol_route+0x56f/0x840 [ 8569.224436][ T254] fib6_rule_lookup+0x334/0x630 [ 8569.224436][ T254] ip6_route_output_flags+0x259/0x480 [ 8569.224436][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8569.224436][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8569.224436][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.224436][ T254] netlink_unicast+0x449/0x710 [ 8569.224436][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.224436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.224436][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.224436][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.224436][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.224436][ T254] [ 8569.226670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.226670][ T254] netdev_get_by_index+0x5e/0x80 [ 8569.226670][ T254] fib6_nh_init+0x3d8/0x1580 [ 8569.226670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8569.226670][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8569.226670][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8569.226670][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8569.226670][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8569.226670][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8569.226670][ T254] addrconf_dad_begin+0x310/0x670 [ 8569.226670][ T254] addrconf_dad_work+0x10b/0xab0 [ 8569.226670][ T254] process_one_work+0x84d/0x18a0 [ 8569.226670][ T254] worker_thread+0x587/0xd30 [ 8569.226670][ T254] kthread+0x28a/0x350 [ 8569.226670][ T254] ret_from_fork+0x31/0x70 [ 8569.226670][ T254] ret_from_fork_asm+0x1a/0x30 [ 8569.226670][ T254] [ 8569.228832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.228832][ T254] netdev_get_by_index+0x5e/0x80 [ 8569.228832][ T254] fib6_nh_init+0x3d8/0x1580 [ 8569.228832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8569.228832][ T254] ip6_route_add+0x1c/0x140 [ 8569.228832][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8569.228832][ T254] inet6_addr_add+0x4f8/0xa40 [ 8569.228832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8569.228832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8569.228832][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.228832][ T254] netlink_unicast+0x449/0x710 [ 8569.228832][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.228832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.228832][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.228832][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.228832][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.228832][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8569.228832][ T254] [ 8569.231074][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.231074][ T254] netdev_get_by_index+0x5e/0x80 [ 8569.231074][ T254] fib6_nh_init+0x3d8/0x1580 [ 8569.231074][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8569.231074][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8569.231074][ T254] ipv6_add_addr+0x411/0x2000 [ 8569.231074][ T254] inet6_addr_add+0x30e/0xa40 [ 8569.231074][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8569.231074][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8569.231074][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.231074][ T254] netlink_unicast+0x449/0x710 [ 8569.231074][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.231074][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.231074][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.231074][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.231074][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.231074][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8569.231074][ T254] [ 8569.233329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.233329][ T254] netdev_get_by_index+0x5e/0x80 [ 8569.233329][ T254] fib6_nh_init+0x3d8/0x1580 [ 8569.233329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8569.233329][ T254] ip6_route_add+0x1c/0x140 [ 8569.233329][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8569.233329][ T254] addrconf_add_dev+0xe2/0x170 [ 8569.233329][ T254] inet6_addr_add+0x12f/0xa40 [ 8569.233329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8569.233329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8569.233329][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.233329][ T254] netlink_unicast+0x449/0x710 [ 8569.233329][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.233329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.233329][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.233329][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.233329][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.233329][ T254] [ 8569.235522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.235522][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8569.235522][ T254] ipv6_find_idev+0x102/0x170 [ 8569.235522][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8569.235522][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8569.235522][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.235522][ T254] netlink_unicast+0x449/0x710 [ 8569.235522][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.235522][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.235522][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.235522][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.235522][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.235522][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8569.235522][ T254] [ 8569.237259][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8569.237259][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8569.237259][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8569.237259][ T254] ipv6_find_idev+0x102/0x170 [ 8569.237259][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8569.237259][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8569.237259][ T254] netlink_rcv_skb+0x130/0x360 [ 8569.237259][ T254] netlink_unicast+0x449/0x710 [ 8569.237259][ T254] netlink_sendmsg+0x723/0xbe0 [ 8569.237259][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8569.237259][ T254] ___sys_sendmsg+0xee/0x170 [ 8569.237259][ T254] __sys_sendmsg+0xcd/0x170 [ 8569.237259][ T254] do_syscall_64+0xc6/0x1e0 [ 8569.237259][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8569.237259][ T254] [ 8579.423887][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8579.424375][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.424375][ T254] dst_init+0x84/0x4a0 [ 8579.424375][ T254] dst_alloc+0x97/0x150 [ 8579.424375][ T254] ip6_dst_alloc+0x23/0x90 [ 8579.424375][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8579.424375][ T254] ip6_pol_route+0x56f/0x840 [ 8579.424375][ T254] fib6_rule_lookup+0x334/0x630 [ 8579.424375][ T254] ip6_route_output_flags+0x259/0x480 [ 8579.424375][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8579.424375][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8579.424375][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.424375][ T254] netlink_unicast+0x449/0x710 [ 8579.424375][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.424375][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.424375][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.424375][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.424375][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.424375][ T254] [ 8579.426712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.426712][ T254] netdev_get_by_index+0x5e/0x80 [ 8579.426712][ T254] fib6_nh_init+0x3d8/0x1580 [ 8579.426712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8579.426712][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8579.426712][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8579.426712][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8579.426712][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8579.426712][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8579.426712][ T254] addrconf_dad_begin+0x310/0x670 [ 8579.426712][ T254] addrconf_dad_work+0x10b/0xab0 [ 8579.426712][ T254] process_one_work+0x84d/0x18a0 [ 8579.426712][ T254] worker_thread+0x587/0xd30 [ 8579.426712][ T254] kthread+0x28a/0x350 [ 8579.426712][ T254] ret_from_fork+0x31/0x70 [ 8579.426712][ T254] ret_from_fork_asm+0x1a/0x30 [ 8579.426712][ T254] [ 8579.428917][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.428917][ T254] netdev_get_by_index+0x5e/0x80 [ 8579.428917][ T254] fib6_nh_init+0x3d8/0x1580 [ 8579.428917][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8579.428917][ T254] ip6_route_add+0x1c/0x140 [ 8579.428917][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8579.428917][ T254] inet6_addr_add+0x4f8/0xa40 [ 8579.428917][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8579.428917][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8579.428917][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.428917][ T254] netlink_unicast+0x449/0x710 [ 8579.428917][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.428917][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.428917][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.428917][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.428917][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.428917][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8579.428917][ T254] [ 8579.431195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.431195][ T254] netdev_get_by_index+0x5e/0x80 [ 8579.431195][ T254] fib6_nh_init+0x3d8/0x1580 [ 8579.431195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8579.431195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8579.431195][ T254] ipv6_add_addr+0x411/0x2000 [ 8579.431195][ T254] inet6_addr_add+0x30e/0xa40 [ 8579.431195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8579.431195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8579.431195][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.431195][ T254] netlink_unicast+0x449/0x710 [ 8579.431195][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.431195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.431195][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.431195][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.431195][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.431195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8579.431195][ T254] [ 8579.433458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.433458][ T254] netdev_get_by_index+0x5e/0x80 [ 8579.433458][ T254] fib6_nh_init+0x3d8/0x1580 [ 8579.433458][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8579.433458][ T254] ip6_route_add+0x1c/0x140 [ 8579.433458][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8579.433458][ T254] addrconf_add_dev+0xe2/0x170 [ 8579.433458][ T254] inet6_addr_add+0x12f/0xa40 [ 8579.433458][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8579.433458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8579.433458][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.433458][ T254] netlink_unicast+0x449/0x710 [ 8579.433458][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.433458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.433458][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.433458][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.433458][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.433458][ T254] [ 8579.435688][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.435688][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8579.435688][ T254] ipv6_find_idev+0x102/0x170 [ 8579.435688][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8579.435688][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8579.435688][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.435688][ T254] netlink_unicast+0x449/0x710 [ 8579.435688][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.435688][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.435688][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.435688][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.435688][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.435688][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8579.435688][ T254] [ 8579.437446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8579.437446][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8579.437446][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8579.437446][ T254] ipv6_find_idev+0x102/0x170 [ 8579.437446][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8579.437446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8579.437446][ T254] netlink_rcv_skb+0x130/0x360 [ 8579.437446][ T254] netlink_unicast+0x449/0x710 [ 8579.437446][ T254] netlink_sendmsg+0x723/0xbe0 [ 8579.437446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8579.437446][ T254] ___sys_sendmsg+0xee/0x170 [ 8579.437446][ T254] __sys_sendmsg+0xcd/0x170 [ 8579.437446][ T254] do_syscall_64+0xc6/0x1e0 [ 8579.437446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8579.437446][ T254] [ 8589.679847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8589.680311][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.680311][ T254] dst_init+0x84/0x4a0 [ 8589.680311][ T254] dst_alloc+0x97/0x150 [ 8589.680311][ T254] ip6_dst_alloc+0x23/0x90 [ 8589.680311][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8589.680311][ T254] ip6_pol_route+0x56f/0x840 [ 8589.680311][ T254] fib6_rule_lookup+0x334/0x630 [ 8589.680311][ T254] ip6_route_output_flags+0x259/0x480 [ 8589.680311][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8589.680311][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8589.680311][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.680311][ T254] netlink_unicast+0x449/0x710 [ 8589.680311][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.680311][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.680311][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.680311][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.680311][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.680311][ T254] [ 8589.682509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.682509][ T254] netdev_get_by_index+0x5e/0x80 [ 8589.682509][ T254] fib6_nh_init+0x3d8/0x1580 [ 8589.682509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8589.682509][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8589.682509][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8589.682509][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8589.682509][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8589.682509][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8589.682509][ T254] addrconf_dad_begin+0x310/0x670 [ 8589.682509][ T254] addrconf_dad_work+0x10b/0xab0 [ 8589.682509][ T254] process_one_work+0x84d/0x18a0 [ 8589.682509][ T254] worker_thread+0x587/0xd30 [ 8589.682509][ T254] kthread+0x28a/0x350 [ 8589.682509][ T254] ret_from_fork+0x31/0x70 [ 8589.682509][ T254] ret_from_fork_asm+0x1a/0x30 [ 8589.682509][ T254] [ 8589.684658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.684658][ T254] netdev_get_by_index+0x5e/0x80 [ 8589.684658][ T254] fib6_nh_init+0x3d8/0x1580 [ 8589.684658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8589.684658][ T254] ip6_route_add+0x1c/0x140 [ 8589.684658][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8589.684658][ T254] inet6_addr_add+0x4f8/0xa40 [ 8589.684658][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8589.684658][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8589.684658][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.684658][ T254] netlink_unicast+0x449/0x710 [ 8589.684658][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.684658][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.684658][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.684658][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.684658][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.684658][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8589.684658][ T254] [ 8589.686890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.686890][ T254] netdev_get_by_index+0x5e/0x80 [ 8589.686890][ T254] fib6_nh_init+0x3d8/0x1580 [ 8589.686890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8589.686890][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8589.686890][ T254] ipv6_add_addr+0x411/0x2000 [ 8589.686890][ T254] inet6_addr_add+0x30e/0xa40 [ 8589.686890][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8589.686890][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8589.686890][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.686890][ T254] netlink_unicast+0x449/0x710 [ 8589.686890][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.686890][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.686890][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.686890][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.686890][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.686890][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8589.686890][ T254] [ 8589.689137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.689137][ T254] netdev_get_by_index+0x5e/0x80 [ 8589.689137][ T254] fib6_nh_init+0x3d8/0x1580 [ 8589.689137][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8589.689137][ T254] ip6_route_add+0x1c/0x140 [ 8589.689137][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8589.689137][ T254] addrconf_add_dev+0xe2/0x170 [ 8589.689137][ T254] inet6_addr_add+0x12f/0xa40 [ 8589.689137][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8589.689137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8589.689137][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.689137][ T254] netlink_unicast+0x449/0x710 [ 8589.689137][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.689137][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.689137][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.689137][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.689137][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.689137][ T254] [ 8589.691338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.691338][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8589.691338][ T254] ipv6_find_idev+0x102/0x170 [ 8589.691338][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8589.691338][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8589.691338][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.691338][ T254] netlink_unicast+0x449/0x710 [ 8589.691338][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.691338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.691338][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.691338][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.691338][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.691338][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8589.691338][ T254] [ 8589.693066][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8589.693066][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8589.693066][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8589.693066][ T254] ipv6_find_idev+0x102/0x170 [ 8589.693066][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8589.693066][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8589.693066][ T254] netlink_rcv_skb+0x130/0x360 [ 8589.693066][ T254] netlink_unicast+0x449/0x710 [ 8589.693066][ T254] netlink_sendmsg+0x723/0xbe0 [ 8589.693066][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8589.693066][ T254] ___sys_sendmsg+0xee/0x170 [ 8589.693066][ T254] __sys_sendmsg+0xcd/0x170 [ 8589.693066][ T254] do_syscall_64+0xc6/0x1e0 [ 8589.693066][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8589.693066][ T254] [ 8599.831918][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8599.832403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.832403][ T254] dst_init+0x84/0x4a0 [ 8599.832403][ T254] dst_alloc+0x97/0x150 [ 8599.832403][ T254] ip6_dst_alloc+0x23/0x90 [ 8599.832403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8599.832403][ T254] ip6_pol_route+0x56f/0x840 [ 8599.832403][ T254] fib6_rule_lookup+0x334/0x630 [ 8599.832403][ T254] ip6_route_output_flags+0x259/0x480 [ 8599.832403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8599.832403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8599.832403][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.832403][ T254] netlink_unicast+0x449/0x710 [ 8599.832403][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.832403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.832403][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.832403][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.832403][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.832403][ T254] [ 8599.834637][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.834637][ T254] netdev_get_by_index+0x5e/0x80 [ 8599.834637][ T254] fib6_nh_init+0x3d8/0x1580 [ 8599.834637][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8599.834637][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8599.834637][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8599.834637][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8599.834637][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8599.834637][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8599.834637][ T254] addrconf_dad_begin+0x310/0x670 [ 8599.834637][ T254] addrconf_dad_work+0x10b/0xab0 [ 8599.834637][ T254] process_one_work+0x84d/0x18a0 [ 8599.834637][ T254] worker_thread+0x587/0xd30 [ 8599.834637][ T254] kthread+0x28a/0x350 [ 8599.834637][ T254] ret_from_fork+0x31/0x70 [ 8599.834637][ T254] ret_from_fork_asm+0x1a/0x30 [ 8599.834637][ T254] [ 8599.836861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.836861][ T254] netdev_get_by_index+0x5e/0x80 [ 8599.836861][ T254] fib6_nh_init+0x3d8/0x1580 [ 8599.836861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8599.836861][ T254] ip6_route_add+0x1c/0x140 [ 8599.836861][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8599.836861][ T254] inet6_addr_add+0x4f8/0xa40 [ 8599.836861][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8599.836861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8599.836861][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.836861][ T254] netlink_unicast+0x449/0x710 [ 8599.836861][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.836861][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.836861][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.836861][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.836861][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.836861][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8599.836861][ T254] [ 8599.839168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.839168][ T254] netdev_get_by_index+0x5e/0x80 [ 8599.839168][ T254] fib6_nh_init+0x3d8/0x1580 [ 8599.839168][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8599.839168][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8599.839168][ T254] ipv6_add_addr+0x411/0x2000 [ 8599.839168][ T254] inet6_addr_add+0x30e/0xa40 [ 8599.839168][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8599.839168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8599.839168][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.839168][ T254] netlink_unicast+0x449/0x710 [ 8599.839168][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.839168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.839168][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.839168][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.839168][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.839168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8599.839168][ T254] [ 8599.841430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.841430][ T254] netdev_get_by_index+0x5e/0x80 [ 8599.841430][ T254] fib6_nh_init+0x3d8/0x1580 [ 8599.841430][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8599.841430][ T254] ip6_route_add+0x1c/0x140 [ 8599.841430][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8599.841430][ T254] addrconf_add_dev+0xe2/0x170 [ 8599.841430][ T254] inet6_addr_add+0x12f/0xa40 [ 8599.841430][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8599.841430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8599.841430][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.841430][ T254] netlink_unicast+0x449/0x710 [ 8599.841430][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.841430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.841430][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.841430][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.841430][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.841430][ T254] [ 8599.843671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.843671][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8599.843671][ T254] ipv6_find_idev+0x102/0x170 [ 8599.843671][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8599.843671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8599.843671][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.843671][ T254] netlink_unicast+0x449/0x710 [ 8599.843671][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.843671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.843671][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.843671][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.843671][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.843671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8599.843671][ T254] [ 8599.845416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8599.845416][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8599.845416][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8599.845416][ T254] ipv6_find_idev+0x102/0x170 [ 8599.845416][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8599.845416][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8599.845416][ T254] netlink_rcv_skb+0x130/0x360 [ 8599.845416][ T254] netlink_unicast+0x449/0x710 [ 8599.845416][ T254] netlink_sendmsg+0x723/0xbe0 [ 8599.845416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8599.845416][ T254] ___sys_sendmsg+0xee/0x170 [ 8599.845416][ T254] __sys_sendmsg+0xcd/0x170 [ 8599.845416][ T254] do_syscall_64+0xc6/0x1e0 [ 8599.845416][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8599.845416][ T254] [ 8610.336000][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8610.336483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.336483][ T254] dst_init+0x84/0x4a0 [ 8610.336483][ T254] dst_alloc+0x97/0x150 [ 8610.336483][ T254] ip6_dst_alloc+0x23/0x90 [ 8610.336483][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8610.336483][ T254] ip6_pol_route+0x56f/0x840 [ 8610.336483][ T254] fib6_rule_lookup+0x334/0x630 [ 8610.336483][ T254] ip6_route_output_flags+0x259/0x480 [ 8610.336483][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8610.336483][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8610.336483][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.336483][ T254] netlink_unicast+0x449/0x710 [ 8610.336483][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.336483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.336483][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.336483][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.336483][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.336483][ T254] [ 8610.338737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.338737][ T254] netdev_get_by_index+0x5e/0x80 [ 8610.338737][ T254] fib6_nh_init+0x3d8/0x1580 [ 8610.338737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8610.338737][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8610.338737][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8610.338737][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8610.338737][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8610.338737][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8610.338737][ T254] addrconf_dad_begin+0x310/0x670 [ 8610.338737][ T254] addrconf_dad_work+0x10b/0xab0 [ 8610.338737][ T254] process_one_work+0x84d/0x18a0 [ 8610.338737][ T254] worker_thread+0x587/0xd30 [ 8610.338737][ T254] kthread+0x28a/0x350 [ 8610.338737][ T254] ret_from_fork+0x31/0x70 [ 8610.338737][ T254] ret_from_fork_asm+0x1a/0x30 [ 8610.338737][ T254] [ 8610.340904][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.340904][ T254] netdev_get_by_index+0x5e/0x80 [ 8610.340904][ T254] fib6_nh_init+0x3d8/0x1580 [ 8610.340904][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8610.340904][ T254] ip6_route_add+0x1c/0x140 [ 8610.340904][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8610.340904][ T254] inet6_addr_add+0x4f8/0xa40 [ 8610.340904][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8610.340904][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8610.340904][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.340904][ T254] netlink_unicast+0x449/0x710 [ 8610.340904][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.340904][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.340904][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.340904][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.340904][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.340904][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8610.340904][ T254] [ 8610.343195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.343195][ T254] netdev_get_by_index+0x5e/0x80 [ 8610.343195][ T254] fib6_nh_init+0x3d8/0x1580 [ 8610.343195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8610.343195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8610.343195][ T254] ipv6_add_addr+0x411/0x2000 [ 8610.343195][ T254] inet6_addr_add+0x30e/0xa40 [ 8610.343195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8610.343195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8610.343195][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.343195][ T254] netlink_unicast+0x449/0x710 [ 8610.343195][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.343195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.343195][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.343195][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.343195][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.343195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8610.343195][ T254] [ 8610.345467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.345467][ T254] netdev_get_by_index+0x5e/0x80 [ 8610.345467][ T254] fib6_nh_init+0x3d8/0x1580 [ 8610.345467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8610.345467][ T254] ip6_route_add+0x1c/0x140 [ 8610.345467][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8610.345467][ T254] addrconf_add_dev+0xe2/0x170 [ 8610.345467][ T254] inet6_addr_add+0x12f/0xa40 [ 8610.345467][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8610.345467][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8610.345467][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.345467][ T254] netlink_unicast+0x449/0x710 [ 8610.345467][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.345467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.345467][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.345467][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.345467][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.345467][ T254] [ 8610.347680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.347680][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8610.347680][ T254] ipv6_find_idev+0x102/0x170 [ 8610.347680][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8610.347680][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8610.347680][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.347680][ T254] netlink_unicast+0x449/0x710 [ 8610.347680][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.347680][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.347680][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.347680][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.347680][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.347680][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8610.347680][ T254] [ 8610.349416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8610.349416][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8610.349416][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8610.349416][ T254] ipv6_find_idev+0x102/0x170 [ 8610.349416][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8610.349416][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8610.349416][ T254] netlink_rcv_skb+0x130/0x360 [ 8610.349416][ T254] netlink_unicast+0x449/0x710 [ 8610.349416][ T254] netlink_sendmsg+0x723/0xbe0 [ 8610.349416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8610.349416][ T254] ___sys_sendmsg+0xee/0x170 [ 8610.349416][ T254] __sys_sendmsg+0xcd/0x170 [ 8610.349416][ T254] do_syscall_64+0xc6/0x1e0 [ 8610.349416][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8610.349416][ T254] [ 8620.359873][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8620.360344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.360344][ T254] dst_init+0x84/0x4a0 [ 8620.360344][ T254] dst_alloc+0x97/0x150 [ 8620.360344][ T254] ip6_dst_alloc+0x23/0x90 [ 8620.360344][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8620.360344][ T254] ip6_pol_route+0x56f/0x840 [ 8620.360344][ T254] fib6_rule_lookup+0x334/0x630 [ 8620.360344][ T254] ip6_route_output_flags+0x259/0x480 [ 8620.360344][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8620.360344][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8620.360344][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.360344][ T254] netlink_unicast+0x449/0x710 [ 8620.360344][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.360344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.360344][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.360344][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.360344][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.360344][ T254] [ 8620.362643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.362643][ T254] netdev_get_by_index+0x5e/0x80 [ 8620.362643][ T254] fib6_nh_init+0x3d8/0x1580 [ 8620.362643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8620.362643][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8620.362643][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8620.362643][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8620.362643][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8620.362643][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8620.362643][ T254] addrconf_dad_begin+0x310/0x670 [ 8620.362643][ T254] addrconf_dad_work+0x10b/0xab0 [ 8620.362643][ T254] process_one_work+0x84d/0x18a0 [ 8620.362643][ T254] worker_thread+0x587/0xd30 [ 8620.362643][ T254] kthread+0x28a/0x350 [ 8620.362643][ T254] ret_from_fork+0x31/0x70 [ 8620.362643][ T254] ret_from_fork_asm+0x1a/0x30 [ 8620.362643][ T254] [ 8620.364824][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.364824][ T254] netdev_get_by_index+0x5e/0x80 [ 8620.364824][ T254] fib6_nh_init+0x3d8/0x1580 [ 8620.364824][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8620.364824][ T254] ip6_route_add+0x1c/0x140 [ 8620.364824][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8620.364824][ T254] inet6_addr_add+0x4f8/0xa40 [ 8620.364824][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8620.364824][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8620.364824][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.364824][ T254] netlink_unicast+0x449/0x710 [ 8620.364824][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.364824][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.364824][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.364824][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.364824][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.364824][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8620.364824][ T254] [ 8620.367105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.367105][ T254] netdev_get_by_index+0x5e/0x80 [ 8620.367105][ T254] fib6_nh_init+0x3d8/0x1580 [ 8620.367105][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8620.367105][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8620.367105][ T254] ipv6_add_addr+0x411/0x2000 [ 8620.367105][ T254] inet6_addr_add+0x30e/0xa40 [ 8620.367105][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8620.367105][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8620.367105][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.367105][ T254] netlink_unicast+0x449/0x710 [ 8620.367105][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.367105][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.367105][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.367105][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.367105][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.367105][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8620.367105][ T254] [ 8620.369402][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.369402][ T254] netdev_get_by_index+0x5e/0x80 [ 8620.369402][ T254] fib6_nh_init+0x3d8/0x1580 [ 8620.369402][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8620.369402][ T254] ip6_route_add+0x1c/0x140 [ 8620.369402][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8620.369402][ T254] addrconf_add_dev+0xe2/0x170 [ 8620.369402][ T254] inet6_addr_add+0x12f/0xa40 [ 8620.369402][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8620.369402][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8620.369402][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.369402][ T254] netlink_unicast+0x449/0x710 [ 8620.369402][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.369402][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.369402][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.369402][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.369402][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.369402][ T254] [ 8620.371733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.371733][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8620.371733][ T254] ipv6_find_idev+0x102/0x170 [ 8620.371733][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8620.371733][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8620.371733][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.371733][ T254] netlink_unicast+0x449/0x710 [ 8620.371733][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.371733][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.371733][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.371733][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.371733][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.371733][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8620.371733][ T254] [ 8620.373503][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8620.373503][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8620.373503][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8620.373503][ T254] ipv6_find_idev+0x102/0x170 [ 8620.373503][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8620.373503][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8620.373503][ T254] netlink_rcv_skb+0x130/0x360 [ 8620.373503][ T254] netlink_unicast+0x449/0x710 [ 8620.373503][ T254] netlink_sendmsg+0x723/0xbe0 [ 8620.373503][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8620.373503][ T254] ___sys_sendmsg+0xee/0x170 [ 8620.373503][ T254] __sys_sendmsg+0xcd/0x170 [ 8620.373503][ T254] do_syscall_64+0xc6/0x1e0 [ 8620.373503][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8620.373503][ T254] [ 8630.615900][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8630.616445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.616445][ T254] dst_init+0x84/0x4a0 [ 8630.616445][ T254] dst_alloc+0x97/0x150 [ 8630.616445][ T254] ip6_dst_alloc+0x23/0x90 [ 8630.616445][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8630.616445][ T254] ip6_pol_route+0x56f/0x840 [ 8630.616445][ T254] fib6_rule_lookup+0x334/0x630 [ 8630.616445][ T254] ip6_route_output_flags+0x259/0x480 [ 8630.616445][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8630.616445][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8630.616445][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.616445][ T254] netlink_unicast+0x449/0x710 [ 8630.616445][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.616445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.616445][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.616445][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.616445][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.616445][ T254] [ 8630.618751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.618751][ T254] netdev_get_by_index+0x5e/0x80 [ 8630.618751][ T254] fib6_nh_init+0x3d8/0x1580 [ 8630.618751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8630.618751][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8630.618751][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8630.618751][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8630.618751][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8630.618751][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8630.618751][ T254] addrconf_dad_begin+0x310/0x670 [ 8630.618751][ T254] addrconf_dad_work+0x10b/0xab0 [ 8630.618751][ T254] process_one_work+0x84d/0x18a0 [ 8630.618751][ T254] worker_thread+0x587/0xd30 [ 8630.618751][ T254] kthread+0x28a/0x350 [ 8630.618751][ T254] ret_from_fork+0x31/0x70 [ 8630.618751][ T254] ret_from_fork_asm+0x1a/0x30 [ 8630.618751][ T254] [ 8630.620966][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.620966][ T254] netdev_get_by_index+0x5e/0x80 [ 8630.620966][ T254] fib6_nh_init+0x3d8/0x1580 [ 8630.620966][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8630.620966][ T254] ip6_route_add+0x1c/0x140 [ 8630.620966][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8630.620966][ T254] inet6_addr_add+0x4f8/0xa40 [ 8630.620966][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8630.620966][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8630.620966][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.620966][ T254] netlink_unicast+0x449/0x710 [ 8630.620966][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.620966][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.620966][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.620966][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.620966][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.620966][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8630.620966][ T254] [ 8630.623277][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.623277][ T254] netdev_get_by_index+0x5e/0x80 [ 8630.623277][ T254] fib6_nh_init+0x3d8/0x1580 [ 8630.623277][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8630.623277][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8630.623277][ T254] ipv6_add_addr+0x411/0x2000 [ 8630.623277][ T254] inet6_addr_add+0x30e/0xa40 [ 8630.623277][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8630.623277][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8630.623277][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.623277][ T254] netlink_unicast+0x449/0x710 [ 8630.623277][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.623277][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.623277][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.623277][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.623277][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.623277][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8630.623277][ T254] [ 8630.625572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.625572][ T254] netdev_get_by_index+0x5e/0x80 [ 8630.625572][ T254] fib6_nh_init+0x3d8/0x1580 [ 8630.625572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8630.625572][ T254] ip6_route_add+0x1c/0x140 [ 8630.625572][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8630.625572][ T254] addrconf_add_dev+0xe2/0x170 [ 8630.625572][ T254] inet6_addr_add+0x12f/0xa40 [ 8630.625572][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8630.625572][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8630.625572][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.625572][ T254] netlink_unicast+0x449/0x710 [ 8630.625572][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.625572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.625572][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.625572][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.625572][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.625572][ T254] [ 8630.627843][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.627843][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8630.627843][ T254] ipv6_find_idev+0x102/0x170 [ 8630.627843][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8630.627843][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8630.627843][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.627843][ T254] netlink_unicast+0x449/0x710 [ 8630.627843][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.627843][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.627843][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.627843][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.627843][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.627843][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8630.627843][ T254] [ 8630.629611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8630.629611][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8630.629611][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8630.629611][ T254] ipv6_find_idev+0x102/0x170 [ 8630.629611][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8630.629611][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8630.629611][ T254] netlink_rcv_skb+0x130/0x360 [ 8630.629611][ T254] netlink_unicast+0x449/0x710 [ 8630.629611][ T254] netlink_sendmsg+0x723/0xbe0 [ 8630.629611][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8630.629611][ T254] ___sys_sendmsg+0xee/0x170 [ 8630.629611][ T254] __sys_sendmsg+0xcd/0x170 [ 8630.629611][ T254] do_syscall_64+0xc6/0x1e0 [ 8630.629611][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8630.629611][ T254] [ 8640.871865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8640.872391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.872391][ T254] dst_init+0x84/0x4a0 [ 8640.872391][ T254] dst_alloc+0x97/0x150 [ 8640.872391][ T254] ip6_dst_alloc+0x23/0x90 [ 8640.872391][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8640.872391][ T254] ip6_pol_route+0x56f/0x840 [ 8640.872391][ T254] fib6_rule_lookup+0x334/0x630 [ 8640.872391][ T254] ip6_route_output_flags+0x259/0x480 [ 8640.872391][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8640.872391][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8640.872391][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.872391][ T254] netlink_unicast+0x449/0x710 [ 8640.872391][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.872391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.872391][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.872391][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.872391][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.872391][ T254] [ 8640.874670][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.874670][ T254] netdev_get_by_index+0x5e/0x80 [ 8640.874670][ T254] fib6_nh_init+0x3d8/0x1580 [ 8640.874670][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8640.874670][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8640.874670][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8640.874670][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8640.874670][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8640.874670][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8640.874670][ T254] addrconf_dad_begin+0x310/0x670 [ 8640.874670][ T254] addrconf_dad_work+0x10b/0xab0 [ 8640.874670][ T254] process_one_work+0x84d/0x18a0 [ 8640.874670][ T254] worker_thread+0x587/0xd30 [ 8640.874670][ T254] kthread+0x28a/0x350 [ 8640.874670][ T254] ret_from_fork+0x31/0x70 [ 8640.874670][ T254] ret_from_fork_asm+0x1a/0x30 [ 8640.874670][ T254] [ 8640.876877][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.876877][ T254] netdev_get_by_index+0x5e/0x80 [ 8640.876877][ T254] fib6_nh_init+0x3d8/0x1580 [ 8640.876877][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8640.876877][ T254] ip6_route_add+0x1c/0x140 [ 8640.876877][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8640.876877][ T254] inet6_addr_add+0x4f8/0xa40 [ 8640.876877][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8640.876877][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8640.876877][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.876877][ T254] netlink_unicast+0x449/0x710 [ 8640.876877][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.876877][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.876877][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.876877][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.876877][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.876877][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8640.876877][ T254] [ 8640.879232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.879232][ T254] netdev_get_by_index+0x5e/0x80 [ 8640.879232][ T254] fib6_nh_init+0x3d8/0x1580 [ 8640.879232][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8640.879232][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8640.879232][ T254] ipv6_add_addr+0x411/0x2000 [ 8640.879232][ T254] inet6_addr_add+0x30e/0xa40 [ 8640.879232][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8640.879232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8640.879232][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.879232][ T254] netlink_unicast+0x449/0x710 [ 8640.879232][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.879232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.879232][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.879232][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.879232][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.879232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8640.879232][ T254] [ 8640.881617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.881617][ T254] netdev_get_by_index+0x5e/0x80 [ 8640.881617][ T254] fib6_nh_init+0x3d8/0x1580 [ 8640.881617][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8640.881617][ T254] ip6_route_add+0x1c/0x140 [ 8640.881617][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8640.881617][ T254] addrconf_add_dev+0xe2/0x170 [ 8640.881617][ T254] inet6_addr_add+0x12f/0xa40 [ 8640.881617][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8640.881617][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8640.881617][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.881617][ T254] netlink_unicast+0x449/0x710 [ 8640.881617][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.881617][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.881617][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.881617][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.881617][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.881617][ T254] [ 8640.884015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.884015][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8640.884015][ T254] ipv6_find_idev+0x102/0x170 [ 8640.884015][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8640.884015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8640.884015][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.884015][ T254] netlink_unicast+0x449/0x710 [ 8640.884015][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.884015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.884015][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.884015][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.884015][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.884015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8640.884015][ T254] [ 8640.885894][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8640.885894][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8640.885894][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8640.885894][ T254] ipv6_find_idev+0x102/0x170 [ 8640.885894][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8640.885894][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8640.885894][ T254] netlink_rcv_skb+0x130/0x360 [ 8640.885894][ T254] netlink_unicast+0x449/0x710 [ 8640.885894][ T254] netlink_sendmsg+0x723/0xbe0 [ 8640.885894][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8640.885894][ T254] ___sys_sendmsg+0xee/0x170 [ 8640.885894][ T254] __sys_sendmsg+0xcd/0x170 [ 8640.885894][ T254] do_syscall_64+0xc6/0x1e0 [ 8640.885894][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8640.885894][ T254] [ 8650.991895][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8650.992370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8650.992370][ T254] dst_init+0x84/0x4a0 [ 8650.992370][ T254] dst_alloc+0x97/0x150 [ 8650.992370][ T254] ip6_dst_alloc+0x23/0x90 [ 8650.992370][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8650.992370][ T254] ip6_pol_route+0x56f/0x840 [ 8650.992370][ T254] fib6_rule_lookup+0x334/0x630 [ 8650.992370][ T254] ip6_route_output_flags+0x259/0x480 [ 8650.992370][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8650.992370][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8650.992370][ T254] netlink_rcv_skb+0x130/0x360 [ 8650.992370][ T254] netlink_unicast+0x449/0x710 [ 8650.992370][ T254] netlink_sendmsg+0x723/0xbe0 [ 8650.992370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8650.992370][ T254] ___sys_sendmsg+0xee/0x170 [ 8650.992370][ T254] __sys_sendmsg+0xcd/0x170 [ 8650.992370][ T254] do_syscall_64+0xc6/0x1e0 [ 8650.992370][ T254] [ 8650.994597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8650.994597][ T254] netdev_get_by_index+0x5e/0x80 [ 8650.994597][ T254] fib6_nh_init+0x3d8/0x1580 [ 8650.994597][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8650.994597][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8650.994597][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8650.994597][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8650.994597][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8650.994597][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8650.994597][ T254] addrconf_dad_begin+0x310/0x670 [ 8650.994597][ T254] addrconf_dad_work+0x10b/0xab0 [ 8650.994597][ T254] process_one_work+0x84d/0x18a0 [ 8650.994597][ T254] worker_thread+0x587/0xd30 [ 8650.994597][ T254] kthread+0x28a/0x350 [ 8650.994597][ T254] ret_from_fork+0x31/0x70 [ 8650.994597][ T254] ret_from_fork_asm+0x1a/0x30 [ 8650.994597][ T254] [ 8650.996784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8650.996784][ T254] netdev_get_by_index+0x5e/0x80 [ 8650.996784][ T254] fib6_nh_init+0x3d8/0x1580 [ 8650.996784][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8650.996784][ T254] ip6_route_add+0x1c/0x140 [ 8650.996784][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8650.996784][ T254] inet6_addr_add+0x4f8/0xa40 [ 8650.996784][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8650.996784][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8650.996784][ T254] netlink_rcv_skb+0x130/0x360 [ 8650.996784][ T254] netlink_unicast+0x449/0x710 [ 8650.996784][ T254] netlink_sendmsg+0x723/0xbe0 [ 8650.996784][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8650.996784][ T254] ___sys_sendmsg+0xee/0x170 [ 8650.996784][ T254] __sys_sendmsg+0xcd/0x170 [ 8650.996784][ T254] do_syscall_64+0xc6/0x1e0 [ 8650.996784][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8650.996784][ T254] [ 8650.999060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8650.999060][ T254] netdev_get_by_index+0x5e/0x80 [ 8650.999060][ T254] fib6_nh_init+0x3d8/0x1580 [ 8650.999060][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8650.999060][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8650.999060][ T254] ipv6_add_addr+0x411/0x2000 [ 8650.999060][ T254] inet6_addr_add+0x30e/0xa40 [ 8650.999060][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8650.999060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8650.999060][ T254] netlink_rcv_skb+0x130/0x360 [ 8650.999060][ T254] netlink_unicast+0x449/0x710 [ 8650.999060][ T254] netlink_sendmsg+0x723/0xbe0 [ 8650.999060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8650.999060][ T254] ___sys_sendmsg+0xee/0x170 [ 8650.999060][ T254] __sys_sendmsg+0xcd/0x170 [ 8650.999060][ T254] do_syscall_64+0xc6/0x1e0 [ 8650.999060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8650.999060][ T254] [ 8651.001336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8651.001336][ T254] netdev_get_by_index+0x5e/0x80 [ 8651.001336][ T254] fib6_nh_init+0x3d8/0x1580 [ 8651.001336][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8651.001336][ T254] ip6_route_add+0x1c/0x140 [ 8651.001336][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8651.001336][ T254] addrconf_add_dev+0xe2/0x170 [ 8651.001336][ T254] inet6_addr_add+0x12f/0xa40 [ 8651.001336][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8651.001336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8651.001336][ T254] netlink_rcv_skb+0x130/0x360 [ 8651.001336][ T254] netlink_unicast+0x449/0x710 [ 8651.001336][ T254] netlink_sendmsg+0x723/0xbe0 [ 8651.001336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8651.001336][ T254] ___sys_sendmsg+0xee/0x170 [ 8651.001336][ T254] __sys_sendmsg+0xcd/0x170 [ 8651.001336][ T254] do_syscall_64+0xc6/0x1e0 [ 8651.001336][ T254] [ 8651.003548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8651.003548][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8651.003548][ T254] ipv6_find_idev+0x102/0x170 [ 8651.003548][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8651.003548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8651.003548][ T254] netlink_rcv_skb+0x130/0x360 [ 8651.003548][ T254] netlink_unicast+0x449/0x710 [ 8651.003548][ T254] netlink_sendmsg+0x723/0xbe0 [ 8651.003548][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8651.003548][ T254] ___sys_sendmsg+0xee/0x170 [ 8651.003548][ T254] __sys_sendmsg+0xcd/0x170 [ 8651.003548][ T254] do_syscall_64+0xc6/0x1e0 [ 8651.003548][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8651.003548][ T254] [ 8651.005306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8651.005306][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8651.005306][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8651.005306][ T254] ipv6_find_idev+0x102/0x170 [ 8651.005306][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8651.005306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8651.005306][ T254] netlink_rcv_skb+0x130/0x360 [ 8651.005306][ T254] netlink_unicast+0x449/0x710 [ 8651.005306][ T254] netlink_sendmsg+0x723/0xbe0 [ 8651.005306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8651.005306][ T254] ___sys_sendmsg+0xee/0x170 [ 8651.005306][ T254] __sys_sendmsg+0xcd/0x170 [ 8651.005306][ T254] do_syscall_64+0xc6/0x1e0 [ 8651.005306][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8651.005306][ T254] [ 8661.247841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8661.248317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.248317][ T254] dst_init+0x84/0x4a0 [ 8661.248317][ T254] dst_alloc+0x97/0x150 [ 8661.248317][ T254] ip6_dst_alloc+0x23/0x90 [ 8661.248317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8661.248317][ T254] ip6_pol_route+0x56f/0x840 [ 8661.248317][ T254] fib6_rule_lookup+0x334/0x630 [ 8661.248317][ T254] ip6_route_output_flags+0x259/0x480 [ 8661.248317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8661.248317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8661.248317][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.248317][ T254] netlink_unicast+0x449/0x710 [ 8661.248317][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.248317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.248317][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.248317][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.248317][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.248317][ T254] [ 8661.250558][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.250558][ T254] netdev_get_by_index+0x5e/0x80 [ 8661.250558][ T254] fib6_nh_init+0x3d8/0x1580 [ 8661.250558][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8661.250558][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8661.250558][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8661.250558][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8661.250558][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8661.250558][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8661.250558][ T254] addrconf_dad_begin+0x310/0x670 [ 8661.250558][ T254] addrconf_dad_work+0x10b/0xab0 [ 8661.250558][ T254] process_one_work+0x84d/0x18a0 [ 8661.250558][ T254] worker_thread+0x587/0xd30 [ 8661.250558][ T254] kthread+0x28a/0x350 [ 8661.250558][ T254] ret_from_fork+0x31/0x70 [ 8661.250558][ T254] ret_from_fork_asm+0x1a/0x30 [ 8661.250558][ T254] [ 8661.252721][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.252721][ T254] netdev_get_by_index+0x5e/0x80 [ 8661.252721][ T254] fib6_nh_init+0x3d8/0x1580 [ 8661.252721][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8661.252721][ T254] ip6_route_add+0x1c/0x140 [ 8661.252721][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8661.252721][ T254] inet6_addr_add+0x4f8/0xa40 [ 8661.252721][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8661.252721][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8661.252721][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.252721][ T254] netlink_unicast+0x449/0x710 [ 8661.252721][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.252721][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.252721][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.252721][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.252721][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.252721][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8661.252721][ T254] [ 8661.254972][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.254972][ T254] netdev_get_by_index+0x5e/0x80 [ 8661.254972][ T254] fib6_nh_init+0x3d8/0x1580 [ 8661.254972][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8661.254972][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8661.254972][ T254] ipv6_add_addr+0x411/0x2000 [ 8661.254972][ T254] inet6_addr_add+0x30e/0xa40 [ 8661.254972][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8661.254972][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8661.254972][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.254972][ T254] netlink_unicast+0x449/0x710 [ 8661.254972][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.254972][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.254972][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.254972][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.254972][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.254972][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8661.254972][ T254] [ 8661.257236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.257236][ T254] netdev_get_by_index+0x5e/0x80 [ 8661.257236][ T254] fib6_nh_init+0x3d8/0x1580 [ 8661.257236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8661.257236][ T254] ip6_route_add+0x1c/0x140 [ 8661.257236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8661.257236][ T254] addrconf_add_dev+0xe2/0x170 [ 8661.257236][ T254] inet6_addr_add+0x12f/0xa40 [ 8661.257236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8661.257236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8661.257236][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.257236][ T254] netlink_unicast+0x449/0x710 [ 8661.257236][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.257236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.257236][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.257236][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.257236][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.257236][ T254] [ 8661.259479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.259479][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8661.259479][ T254] ipv6_find_idev+0x102/0x170 [ 8661.259479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8661.259479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8661.259479][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.259479][ T254] netlink_unicast+0x449/0x710 [ 8661.259479][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.259479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.259479][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.259479][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.259479][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.259479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8661.259479][ T254] [ 8661.261224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8661.261224][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8661.261224][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8661.261224][ T254] ipv6_find_idev+0x102/0x170 [ 8661.261224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8661.261224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8661.261224][ T254] netlink_rcv_skb+0x130/0x360 [ 8661.261224][ T254] netlink_unicast+0x449/0x710 [ 8661.261224][ T254] netlink_sendmsg+0x723/0xbe0 [ 8661.261224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8661.261224][ T254] ___sys_sendmsg+0xee/0x170 [ 8661.261224][ T254] __sys_sendmsg+0xcd/0x170 [ 8661.261224][ T254] do_syscall_64+0xc6/0x1e0 [ 8661.261224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8661.261224][ T254] [ 8671.503866][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8671.504388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.504388][ T254] dst_init+0x84/0x4a0 [ 8671.504388][ T254] dst_alloc+0x97/0x150 [ 8671.504388][ T254] ip6_dst_alloc+0x23/0x90 [ 8671.504388][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8671.504388][ T254] ip6_pol_route+0x56f/0x840 [ 8671.504388][ T254] fib6_rule_lookup+0x334/0x630 [ 8671.504388][ T254] ip6_route_output_flags+0x259/0x480 [ 8671.504388][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8671.504388][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8671.504388][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.504388][ T254] netlink_unicast+0x449/0x710 [ 8671.504388][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.504388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.504388][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.504388][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.504388][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.504388][ T254] [ 8671.506602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.506602][ T254] netdev_get_by_index+0x5e/0x80 [ 8671.506602][ T254] fib6_nh_init+0x3d8/0x1580 [ 8671.506602][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8671.506602][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8671.506602][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8671.506602][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8671.506602][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8671.506602][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8671.506602][ T254] addrconf_dad_begin+0x310/0x670 [ 8671.506602][ T254] addrconf_dad_work+0x10b/0xab0 [ 8671.506602][ T254] process_one_work+0x84d/0x18a0 [ 8671.506602][ T254] worker_thread+0x587/0xd30 [ 8671.506602][ T254] kthread+0x28a/0x350 [ 8671.506602][ T254] ret_from_fork+0x31/0x70 [ 8671.506602][ T254] ret_from_fork_asm+0x1a/0x30 [ 8671.506602][ T254] [ 8671.508773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.508773][ T254] netdev_get_by_index+0x5e/0x80 [ 8671.508773][ T254] fib6_nh_init+0x3d8/0x1580 [ 8671.508773][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8671.508773][ T254] ip6_route_add+0x1c/0x140 [ 8671.508773][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8671.508773][ T254] inet6_addr_add+0x4f8/0xa40 [ 8671.508773][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8671.508773][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8671.508773][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.508773][ T254] netlink_unicast+0x449/0x710 [ 8671.508773][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.508773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.508773][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.508773][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.508773][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.508773][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8671.508773][ T254] [ 8671.511130][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.511130][ T254] netdev_get_by_index+0x5e/0x80 [ 8671.511130][ T254] fib6_nh_init+0x3d8/0x1580 [ 8671.511130][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8671.511130][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8671.511130][ T254] ipv6_add_addr+0x411/0x2000 [ 8671.511130][ T254] inet6_addr_add+0x30e/0xa40 [ 8671.511130][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8671.511130][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8671.511130][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.511130][ T254] netlink_unicast+0x449/0x710 [ 8671.511130][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.511130][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.511130][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.511130][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.511130][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.511130][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8671.511130][ T254] [ 8671.513403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.513403][ T254] netdev_get_by_index+0x5e/0x80 [ 8671.513403][ T254] fib6_nh_init+0x3d8/0x1580 [ 8671.513403][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8671.513403][ T254] ip6_route_add+0x1c/0x140 [ 8671.513403][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8671.513403][ T254] addrconf_add_dev+0xe2/0x170 [ 8671.513403][ T254] inet6_addr_add+0x12f/0xa40 [ 8671.513403][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8671.513403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8671.513403][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.513403][ T254] netlink_unicast+0x449/0x710 [ 8671.513403][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.513403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.513403][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.513403][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.513403][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.513403][ T254] [ 8671.515594][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.515594][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8671.515594][ T254] ipv6_find_idev+0x102/0x170 [ 8671.515594][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8671.515594][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8671.515594][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.515594][ T254] netlink_unicast+0x449/0x710 [ 8671.515594][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.515594][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.515594][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.515594][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.515594][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.515594][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8671.515594][ T254] [ 8671.517316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8671.517316][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8671.517316][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8671.517316][ T254] ipv6_find_idev+0x102/0x170 [ 8671.517316][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8671.517316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8671.517316][ T254] netlink_rcv_skb+0x130/0x360 [ 8671.517316][ T254] netlink_unicast+0x449/0x710 [ 8671.517316][ T254] netlink_sendmsg+0x723/0xbe0 [ 8671.517316][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8671.517316][ T254] ___sys_sendmsg+0xee/0x170 [ 8671.517316][ T254] __sys_sendmsg+0xcd/0x170 [ 8671.517316][ T254] do_syscall_64+0xc6/0x1e0 [ 8671.517316][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8671.517316][ T254] [ 8681.671858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8681.672384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.672384][ T254] dst_init+0x84/0x4a0 [ 8681.672384][ T254] dst_alloc+0x97/0x150 [ 8681.672384][ T254] ip6_dst_alloc+0x23/0x90 [ 8681.672384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8681.672384][ T254] ip6_pol_route+0x56f/0x840 [ 8681.672384][ T254] fib6_rule_lookup+0x334/0x630 [ 8681.672384][ T254] ip6_route_output_flags+0x259/0x480 [ 8681.672384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8681.672384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8681.672384][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.672384][ T254] netlink_unicast+0x449/0x710 [ 8681.672384][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.672384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.672384][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.672384][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.672384][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.672384][ T254] [ 8681.674592][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.674592][ T254] netdev_get_by_index+0x5e/0x80 [ 8681.674592][ T254] fib6_nh_init+0x3d8/0x1580 [ 8681.674592][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8681.674592][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8681.674592][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8681.674592][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8681.674592][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8681.674592][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8681.674592][ T254] addrconf_dad_begin+0x310/0x670 [ 8681.674592][ T254] addrconf_dad_work+0x10b/0xab0 [ 8681.674592][ T254] process_one_work+0x84d/0x18a0 [ 8681.674592][ T254] worker_thread+0x587/0xd30 [ 8681.674592][ T254] kthread+0x28a/0x350 [ 8681.674592][ T254] ret_from_fork+0x31/0x70 [ 8681.674592][ T254] ret_from_fork_asm+0x1a/0x30 [ 8681.674592][ T254] [ 8681.676742][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.676742][ T254] netdev_get_by_index+0x5e/0x80 [ 8681.676742][ T254] fib6_nh_init+0x3d8/0x1580 [ 8681.676742][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8681.676742][ T254] ip6_route_add+0x1c/0x140 [ 8681.676742][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8681.676742][ T254] inet6_addr_add+0x4f8/0xa40 [ 8681.676742][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8681.676742][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8681.676742][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.676742][ T254] netlink_unicast+0x449/0x710 [ 8681.676742][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.676742][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.676742][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.676742][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.676742][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.676742][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8681.676742][ T254] [ 8681.678999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.678999][ T254] netdev_get_by_index+0x5e/0x80 [ 8681.678999][ T254] fib6_nh_init+0x3d8/0x1580 [ 8681.678999][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8681.678999][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8681.678999][ T254] ipv6_add_addr+0x411/0x2000 [ 8681.678999][ T254] inet6_addr_add+0x30e/0xa40 [ 8681.678999][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8681.678999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8681.678999][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.678999][ T254] netlink_unicast+0x449/0x710 [ 8681.678999][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.678999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.678999][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.678999][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.678999][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.678999][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8681.678999][ T254] [ 8681.681240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.681240][ T254] netdev_get_by_index+0x5e/0x80 [ 8681.681240][ T254] fib6_nh_init+0x3d8/0x1580 [ 8681.681240][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8681.681240][ T254] ip6_route_add+0x1c/0x140 [ 8681.681240][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8681.681240][ T254] addrconf_add_dev+0xe2/0x170 [ 8681.681240][ T254] inet6_addr_add+0x12f/0xa40 [ 8681.681240][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8681.681240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8681.681240][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.681240][ T254] netlink_unicast+0x449/0x710 [ 8681.681240][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.681240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.681240][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.681240][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.681240][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.681240][ T254] [ 8681.683438][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.683438][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8681.683438][ T254] ipv6_find_idev+0x102/0x170 [ 8681.683438][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8681.683438][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8681.683438][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.683438][ T254] netlink_unicast+0x449/0x710 [ 8681.683438][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.683438][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.683438][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.683438][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.683438][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.683438][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8681.683438][ T254] [ 8681.685191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8681.685191][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8681.685191][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8681.685191][ T254] ipv6_find_idev+0x102/0x170 [ 8681.685191][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8681.685191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8681.685191][ T254] netlink_rcv_skb+0x130/0x360 [ 8681.685191][ T254] netlink_unicast+0x449/0x710 [ 8681.685191][ T254] netlink_sendmsg+0x723/0xbe0 [ 8681.685191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8681.685191][ T254] ___sys_sendmsg+0xee/0x170 [ 8681.685191][ T254] __sys_sendmsg+0xcd/0x170 [ 8681.685191][ T254] do_syscall_64+0xc6/0x1e0 [ 8681.685191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8681.685191][ T254] [ 8691.935865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8691.936409][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.936409][ T254] dst_init+0x84/0x4a0 [ 8691.936409][ T254] dst_alloc+0x97/0x150 [ 8691.936409][ T254] ip6_dst_alloc+0x23/0x90 [ 8691.936409][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8691.936409][ T254] ip6_pol_route+0x56f/0x840 [ 8691.936409][ T254] fib6_rule_lookup+0x334/0x630 [ 8691.936409][ T254] ip6_route_output_flags+0x259/0x480 [ 8691.936409][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8691.936409][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8691.936409][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.936409][ T254] netlink_unicast+0x449/0x710 [ 8691.936409][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.936409][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.936409][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.936409][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.936409][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.936409][ T254] [ 8691.938618][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.938618][ T254] netdev_get_by_index+0x5e/0x80 [ 8691.938618][ T254] fib6_nh_init+0x3d8/0x1580 [ 8691.938618][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8691.938618][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8691.938618][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8691.938618][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8691.938618][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8691.938618][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8691.938618][ T254] addrconf_dad_begin+0x310/0x670 [ 8691.938618][ T254] addrconf_dad_work+0x10b/0xab0 [ 8691.938618][ T254] process_one_work+0x84d/0x18a0 [ 8691.938618][ T254] worker_thread+0x587/0xd30 [ 8691.938618][ T254] kthread+0x28a/0x350 [ 8691.938618][ T254] ret_from_fork+0x31/0x70 [ 8691.938618][ T254] ret_from_fork_asm+0x1a/0x30 [ 8691.938618][ T254] [ 8691.940768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.940768][ T254] netdev_get_by_index+0x5e/0x80 [ 8691.940768][ T254] fib6_nh_init+0x3d8/0x1580 [ 8691.940768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8691.940768][ T254] ip6_route_add+0x1c/0x140 [ 8691.940768][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8691.940768][ T254] inet6_addr_add+0x4f8/0xa40 [ 8691.940768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8691.940768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8691.940768][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.940768][ T254] netlink_unicast+0x449/0x710 [ 8691.940768][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.940768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.940768][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.940768][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.940768][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.940768][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8691.940768][ T254] [ 8691.943011][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.943011][ T254] netdev_get_by_index+0x5e/0x80 [ 8691.943011][ T254] fib6_nh_init+0x3d8/0x1580 [ 8691.943011][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8691.943011][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8691.943011][ T254] ipv6_add_addr+0x411/0x2000 [ 8691.943011][ T254] inet6_addr_add+0x30e/0xa40 [ 8691.943011][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8691.943011][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8691.943011][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.943011][ T254] netlink_unicast+0x449/0x710 [ 8691.943011][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.943011][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.943011][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.943011][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.943011][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.943011][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8691.943011][ T254] [ 8691.945253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.945253][ T254] netdev_get_by_index+0x5e/0x80 [ 8691.945253][ T254] fib6_nh_init+0x3d8/0x1580 [ 8691.945253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8691.945253][ T254] ip6_route_add+0x1c/0x140 [ 8691.945253][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8691.945253][ T254] addrconf_add_dev+0xe2/0x170 [ 8691.945253][ T254] inet6_addr_add+0x12f/0xa40 [ 8691.945253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8691.945253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8691.945253][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.945253][ T254] netlink_unicast+0x449/0x710 [ 8691.945253][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.945253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.945253][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.945253][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.945253][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.945253][ T254] [ 8691.947483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.947483][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8691.947483][ T254] ipv6_find_idev+0x102/0x170 [ 8691.947483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8691.947483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8691.947483][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.947483][ T254] netlink_unicast+0x449/0x710 [ 8691.947483][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.947483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.947483][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.947483][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.947483][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.947483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8691.947483][ T254] [ 8691.949208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8691.949208][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8691.949208][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8691.949208][ T254] ipv6_find_idev+0x102/0x170 [ 8691.949208][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8691.949208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8691.949208][ T254] netlink_rcv_skb+0x130/0x360 [ 8691.949208][ T254] netlink_unicast+0x449/0x710 [ 8691.949208][ T254] netlink_sendmsg+0x723/0xbe0 [ 8691.949208][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8691.949208][ T254] ___sys_sendmsg+0xee/0x170 [ 8691.949208][ T254] __sys_sendmsg+0xcd/0x170 [ 8691.949208][ T254] do_syscall_64+0xc6/0x1e0 [ 8691.949208][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8691.949208][ T254] [ 8702.095835][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8702.096379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.096379][ T254] dst_init+0x84/0x4a0 [ 8702.096379][ T254] dst_alloc+0x97/0x150 [ 8702.096379][ T254] ip6_dst_alloc+0x23/0x90 [ 8702.096379][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8702.096379][ T254] ip6_pol_route+0x56f/0x840 [ 8702.096379][ T254] fib6_rule_lookup+0x334/0x630 [ 8702.096379][ T254] ip6_route_output_flags+0x259/0x480 [ 8702.096379][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8702.096379][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8702.096379][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.096379][ T254] netlink_unicast+0x449/0x710 [ 8702.096379][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.096379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.096379][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.096379][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.096379][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.096379][ T254] [ 8702.098663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.098663][ T254] netdev_get_by_index+0x5e/0x80 [ 8702.098663][ T254] fib6_nh_init+0x3d8/0x1580 [ 8702.098663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8702.098663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8702.098663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8702.098663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8702.098663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8702.098663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8702.098663][ T254] addrconf_dad_begin+0x310/0x670 [ 8702.098663][ T254] addrconf_dad_work+0x10b/0xab0 [ 8702.098663][ T254] process_one_work+0x84d/0x18a0 [ 8702.098663][ T254] worker_thread+0x587/0xd30 [ 8702.098663][ T254] kthread+0x28a/0x350 [ 8702.098663][ T254] ret_from_fork+0x31/0x70 [ 8702.098663][ T254] ret_from_fork_asm+0x1a/0x30 [ 8702.098663][ T254] [ 8702.100888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.100888][ T254] netdev_get_by_index+0x5e/0x80 [ 8702.100888][ T254] fib6_nh_init+0x3d8/0x1580 [ 8702.100888][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8702.100888][ T254] ip6_route_add+0x1c/0x140 [ 8702.100888][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8702.100888][ T254] inet6_addr_add+0x4f8/0xa40 [ 8702.100888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8702.100888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8702.100888][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.100888][ T254] netlink_unicast+0x449/0x710 [ 8702.100888][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.100888][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.100888][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.100888][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.100888][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.100888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8702.100888][ T254] [ 8702.103191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.103191][ T254] netdev_get_by_index+0x5e/0x80 [ 8702.103191][ T254] fib6_nh_init+0x3d8/0x1580 [ 8702.103191][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8702.103191][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8702.103191][ T254] ipv6_add_addr+0x411/0x2000 [ 8702.103191][ T254] inet6_addr_add+0x30e/0xa40 [ 8702.103191][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8702.103191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8702.103191][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.103191][ T254] netlink_unicast+0x449/0x710 [ 8702.103191][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.103191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.103191][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.103191][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.103191][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.103191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8702.103191][ T254] [ 8702.105484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.105484][ T254] netdev_get_by_index+0x5e/0x80 [ 8702.105484][ T254] fib6_nh_init+0x3d8/0x1580 [ 8702.105484][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8702.105484][ T254] ip6_route_add+0x1c/0x140 [ 8702.105484][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8702.105484][ T254] addrconf_add_dev+0xe2/0x170 [ 8702.105484][ T254] inet6_addr_add+0x12f/0xa40 [ 8702.105484][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8702.105484][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8702.105484][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.105484][ T254] netlink_unicast+0x449/0x710 [ 8702.105484][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.105484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.105484][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.105484][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.105484][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.105484][ T254] [ 8702.107757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.107757][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8702.107757][ T254] ipv6_find_idev+0x102/0x170 [ 8702.107757][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8702.107757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8702.107757][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.107757][ T254] netlink_unicast+0x449/0x710 [ 8702.107757][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.107757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.107757][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.107757][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.107757][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.107757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8702.107757][ T254] [ 8702.109542][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8702.109542][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8702.109542][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8702.109542][ T254] ipv6_find_idev+0x102/0x170 [ 8702.109542][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8702.109542][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8702.109542][ T254] netlink_rcv_skb+0x130/0x360 [ 8702.109542][ T254] netlink_unicast+0x449/0x710 [ 8702.109542][ T254] netlink_sendmsg+0x723/0xbe0 [ 8702.109542][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8702.109542][ T254] ___sys_sendmsg+0xee/0x170 [ 8702.109542][ T254] __sys_sendmsg+0xcd/0x170 [ 8702.109542][ T254] do_syscall_64+0xc6/0x1e0 [ 8702.109542][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8702.109542][ T254] [ 8712.191941][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8712.192428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.192428][ T254] dst_init+0x84/0x4a0 [ 8712.192428][ T254] dst_alloc+0x97/0x150 [ 8712.192428][ T254] ip6_dst_alloc+0x23/0x90 [ 8712.192428][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8712.192428][ T254] ip6_pol_route+0x56f/0x840 [ 8712.192428][ T254] fib6_rule_lookup+0x334/0x630 [ 8712.192428][ T254] ip6_route_output_flags+0x259/0x480 [ 8712.192428][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8712.192428][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8712.192428][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.192428][ T254] netlink_unicast+0x449/0x710 [ 8712.192428][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.192428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.192428][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.192428][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.192428][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.192428][ T254] [ 8712.194735][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.194735][ T254] netdev_get_by_index+0x5e/0x80 [ 8712.194735][ T254] fib6_nh_init+0x3d8/0x1580 [ 8712.194735][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8712.194735][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8712.194735][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8712.194735][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8712.194735][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8712.194735][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8712.194735][ T254] addrconf_dad_begin+0x310/0x670 [ 8712.194735][ T254] addrconf_dad_work+0x10b/0xab0 [ 8712.194735][ T254] process_one_work+0x84d/0x18a0 [ 8712.194735][ T254] worker_thread+0x587/0xd30 [ 8712.194735][ T254] kthread+0x28a/0x350 [ 8712.194735][ T254] ret_from_fork+0x31/0x70 [ 8712.194735][ T254] ret_from_fork_asm+0x1a/0x30 [ 8712.194735][ T254] [ 8712.196937][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.196937][ T254] netdev_get_by_index+0x5e/0x80 [ 8712.196937][ T254] fib6_nh_init+0x3d8/0x1580 [ 8712.196937][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8712.196937][ T254] ip6_route_add+0x1c/0x140 [ 8712.196937][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8712.196937][ T254] inet6_addr_add+0x4f8/0xa40 [ 8712.196937][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8712.196937][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8712.196937][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.196937][ T254] netlink_unicast+0x449/0x710 [ 8712.196937][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.196937][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.196937][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.196937][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.196937][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.196937][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8712.196937][ T254] [ 8712.199236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.199236][ T254] netdev_get_by_index+0x5e/0x80 [ 8712.199236][ T254] fib6_nh_init+0x3d8/0x1580 [ 8712.199236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8712.199236][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8712.199236][ T254] ipv6_add_addr+0x411/0x2000 [ 8712.199236][ T254] inet6_addr_add+0x30e/0xa40 [ 8712.199236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8712.199236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8712.199236][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.199236][ T254] netlink_unicast+0x449/0x710 [ 8712.199236][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.199236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.199236][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.199236][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.199236][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.199236][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8712.199236][ T254] [ 8712.201537][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.201537][ T254] netdev_get_by_index+0x5e/0x80 [ 8712.201537][ T254] fib6_nh_init+0x3d8/0x1580 [ 8712.201537][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8712.201537][ T254] ip6_route_add+0x1c/0x140 [ 8712.201537][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8712.201537][ T254] addrconf_add_dev+0xe2/0x170 [ 8712.201537][ T254] inet6_addr_add+0x12f/0xa40 [ 8712.201537][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8712.201537][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8712.201537][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.201537][ T254] netlink_unicast+0x449/0x710 [ 8712.201537][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.201537][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.201537][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.201537][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.201537][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.201537][ T254] [ 8712.203873][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.203873][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8712.203873][ T254] ipv6_find_idev+0x102/0x170 [ 8712.203873][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8712.203873][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8712.203873][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.203873][ T254] netlink_unicast+0x449/0x710 [ 8712.203873][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.203873][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.203873][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.203873][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.203873][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.203873][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8712.203873][ T254] [ 8712.205602][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8712.205602][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8712.205602][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8712.205602][ T254] ipv6_find_idev+0x102/0x170 [ 8712.205602][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8712.205602][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8712.205602][ T254] netlink_rcv_skb+0x130/0x360 [ 8712.205602][ T254] netlink_unicast+0x449/0x710 [ 8712.205602][ T254] netlink_sendmsg+0x723/0xbe0 [ 8712.205602][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8712.205602][ T254] ___sys_sendmsg+0xee/0x170 [ 8712.205602][ T254] __sys_sendmsg+0xcd/0x170 [ 8712.205602][ T254] do_syscall_64+0xc6/0x1e0 [ 8712.205602][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8712.205602][ T254] [ 8722.447825][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8722.448296][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.448296][ T254] dst_init+0x84/0x4a0 [ 8722.448296][ T254] dst_alloc+0x97/0x150 [ 8722.448296][ T254] ip6_dst_alloc+0x23/0x90 [ 8722.448296][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8722.448296][ T254] ip6_pol_route+0x56f/0x840 [ 8722.448296][ T254] fib6_rule_lookup+0x334/0x630 [ 8722.448296][ T254] ip6_route_output_flags+0x259/0x480 [ 8722.448296][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8722.448296][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8722.448296][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.448296][ T254] netlink_unicast+0x449/0x710 [ 8722.448296][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.448296][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.448296][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.448296][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.448296][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.448296][ T254] [ 8722.450538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.450538][ T254] netdev_get_by_index+0x5e/0x80 [ 8722.450538][ T254] fib6_nh_init+0x3d8/0x1580 [ 8722.450538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8722.450538][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8722.450538][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8722.450538][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8722.450538][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8722.450538][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8722.450538][ T254] addrconf_dad_begin+0x310/0x670 [ 8722.450538][ T254] addrconf_dad_work+0x10b/0xab0 [ 8722.450538][ T254] process_one_work+0x84d/0x18a0 [ 8722.450538][ T254] worker_thread+0x587/0xd30 [ 8722.450538][ T254] kthread+0x28a/0x350 [ 8722.450538][ T254] ret_from_fork+0x31/0x70 [ 8722.450538][ T254] ret_from_fork_asm+0x1a/0x30 [ 8722.450538][ T254] [ 8722.452763][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.452763][ T254] netdev_get_by_index+0x5e/0x80 [ 8722.452763][ T254] fib6_nh_init+0x3d8/0x1580 [ 8722.452763][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8722.452763][ T254] ip6_route_add+0x1c/0x140 [ 8722.452763][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8722.452763][ T254] inet6_addr_add+0x4f8/0xa40 [ 8722.452763][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8722.452763][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8722.452763][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.452763][ T254] netlink_unicast+0x449/0x710 [ 8722.452763][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.452763][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.452763][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.452763][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.452763][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.452763][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8722.452763][ T254] [ 8722.455064][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.455064][ T254] netdev_get_by_index+0x5e/0x80 [ 8722.455064][ T254] fib6_nh_init+0x3d8/0x1580 [ 8722.455064][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8722.455064][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8722.455064][ T254] ipv6_add_addr+0x411/0x2000 [ 8722.455064][ T254] inet6_addr_add+0x30e/0xa40 [ 8722.455064][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8722.455064][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8722.455064][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.455064][ T254] netlink_unicast+0x449/0x710 [ 8722.455064][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.455064][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.455064][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.455064][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.455064][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.455064][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8722.455064][ T254] [ 8722.457382][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.457382][ T254] netdev_get_by_index+0x5e/0x80 [ 8722.457382][ T254] fib6_nh_init+0x3d8/0x1580 [ 8722.457382][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8722.457382][ T254] ip6_route_add+0x1c/0x140 [ 8722.457382][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8722.457382][ T254] addrconf_add_dev+0xe2/0x170 [ 8722.457382][ T254] inet6_addr_add+0x12f/0xa40 [ 8722.457382][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8722.457382][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8722.457382][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.457382][ T254] netlink_unicast+0x449/0x710 [ 8722.457382][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.457382][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.457382][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.457382][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.457382][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.457382][ T254] [ 8722.459705][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.459705][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8722.459705][ T254] ipv6_find_idev+0x102/0x170 [ 8722.459705][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8722.459705][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8722.459705][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.459705][ T254] netlink_unicast+0x449/0x710 [ 8722.459705][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.459705][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.459705][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.459705][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.459705][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.459705][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8722.459705][ T254] [ 8722.461475][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8722.461475][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8722.461475][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8722.461475][ T254] ipv6_find_idev+0x102/0x170 [ 8722.461475][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8722.461475][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8722.461475][ T254] netlink_rcv_skb+0x130/0x360 [ 8722.461475][ T254] netlink_unicast+0x449/0x710 [ 8722.461475][ T254] netlink_sendmsg+0x723/0xbe0 [ 8722.461475][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8722.461475][ T254] ___sys_sendmsg+0xee/0x170 [ 8722.461475][ T254] __sys_sendmsg+0xcd/0x170 [ 8722.461475][ T254] do_syscall_64+0xc6/0x1e0 [ 8722.461475][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8722.461475][ T254] [ 8732.703797][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8732.704275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.704275][ T254] dst_init+0x84/0x4a0 [ 8732.704275][ T254] dst_alloc+0x97/0x150 [ 8732.704275][ T254] ip6_dst_alloc+0x23/0x90 [ 8732.704275][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8732.704275][ T254] ip6_pol_route+0x56f/0x840 [ 8732.704275][ T254] fib6_rule_lookup+0x334/0x630 [ 8732.704275][ T254] ip6_route_output_flags+0x259/0x480 [ 8732.704275][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8732.704275][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8732.704275][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.704275][ T254] netlink_unicast+0x449/0x710 [ 8732.704275][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.704275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.704275][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.704275][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.704275][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.704275][ T254] [ 8732.706647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.706647][ T254] netdev_get_by_index+0x5e/0x80 [ 8732.706647][ T254] fib6_nh_init+0x3d8/0x1580 [ 8732.706647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8732.706647][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8732.706647][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8732.706647][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8732.706647][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8732.706647][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8732.706647][ T254] addrconf_dad_begin+0x310/0x670 [ 8732.706647][ T254] addrconf_dad_work+0x10b/0xab0 [ 8732.706647][ T254] process_one_work+0x84d/0x18a0 [ 8732.706647][ T254] worker_thread+0x587/0xd30 [ 8732.706647][ T254] kthread+0x28a/0x350 [ 8732.706647][ T254] ret_from_fork+0x31/0x70 [ 8732.706647][ T254] ret_from_fork_asm+0x1a/0x30 [ 8732.706647][ T254] [ 8732.708802][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.708802][ T254] netdev_get_by_index+0x5e/0x80 [ 8732.708802][ T254] fib6_nh_init+0x3d8/0x1580 [ 8732.708802][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8732.708802][ T254] ip6_route_add+0x1c/0x140 [ 8732.708802][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8732.708802][ T254] inet6_addr_add+0x4f8/0xa40 [ 8732.708802][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8732.708802][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8732.708802][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.708802][ T254] netlink_unicast+0x449/0x710 [ 8732.708802][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.708802][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.708802][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.708802][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.708802][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.708802][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8732.708802][ T254] [ 8732.711050][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.711050][ T254] netdev_get_by_index+0x5e/0x80 [ 8732.711050][ T254] fib6_nh_init+0x3d8/0x1580 [ 8732.711050][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8732.711050][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8732.711050][ T254] ipv6_add_addr+0x411/0x2000 [ 8732.711050][ T254] inet6_addr_add+0x30e/0xa40 [ 8732.711050][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8732.711050][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8732.711050][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.711050][ T254] netlink_unicast+0x449/0x710 [ 8732.711050][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.711050][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.711050][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.711050][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.711050][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.711050][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8732.711050][ T254] [ 8732.713292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.713292][ T254] netdev_get_by_index+0x5e/0x80 [ 8732.713292][ T254] fib6_nh_init+0x3d8/0x1580 [ 8732.713292][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8732.713292][ T254] ip6_route_add+0x1c/0x140 [ 8732.713292][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8732.713292][ T254] addrconf_add_dev+0xe2/0x170 [ 8732.713292][ T254] inet6_addr_add+0x12f/0xa40 [ 8732.713292][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8732.713292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8732.713292][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.713292][ T254] netlink_unicast+0x449/0x710 [ 8732.713292][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.713292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.713292][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.713292][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.713292][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.713292][ T254] [ 8732.715569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.715569][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8732.715569][ T254] ipv6_find_idev+0x102/0x170 [ 8732.715569][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8732.715569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8732.715569][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.715569][ T254] netlink_unicast+0x449/0x710 [ 8732.715569][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.715569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.715569][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.715569][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.715569][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.715569][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8732.715569][ T254] [ 8732.717304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8732.717304][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8732.717304][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8732.717304][ T254] ipv6_find_idev+0x102/0x170 [ 8732.717304][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8732.717304][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8732.717304][ T254] netlink_rcv_skb+0x130/0x360 [ 8732.717304][ T254] netlink_unicast+0x449/0x710 [ 8732.717304][ T254] netlink_sendmsg+0x723/0xbe0 [ 8732.717304][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8732.717304][ T254] ___sys_sendmsg+0xee/0x170 [ 8732.717304][ T254] __sys_sendmsg+0xcd/0x170 [ 8732.717304][ T254] do_syscall_64+0xc6/0x1e0 [ 8732.717304][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8732.717304][ T254] [ 8742.959814][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8742.960335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.960335][ T254] dst_init+0x84/0x4a0 [ 8742.960335][ T254] dst_alloc+0x97/0x150 [ 8742.960335][ T254] ip6_dst_alloc+0x23/0x90 [ 8742.960335][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8742.960335][ T254] ip6_pol_route+0x56f/0x840 [ 8742.960335][ T254] fib6_rule_lookup+0x334/0x630 [ 8742.960335][ T254] ip6_route_output_flags+0x259/0x480 [ 8742.960335][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8742.960335][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8742.960335][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.960335][ T254] netlink_unicast+0x449/0x710 [ 8742.960335][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.960335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.960335][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.960335][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.960335][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.960335][ T254] [ 8742.962565][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.962565][ T254] netdev_get_by_index+0x5e/0x80 [ 8742.962565][ T254] fib6_nh_init+0x3d8/0x1580 [ 8742.962565][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8742.962565][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8742.962565][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8742.962565][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8742.962565][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8742.962565][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8742.962565][ T254] addrconf_dad_begin+0x310/0x670 [ 8742.962565][ T254] addrconf_dad_work+0x10b/0xab0 [ 8742.962565][ T254] process_one_work+0x84d/0x18a0 [ 8742.962565][ T254] worker_thread+0x587/0xd30 [ 8742.962565][ T254] kthread+0x28a/0x350 [ 8742.962565][ T254] ret_from_fork+0x31/0x70 [ 8742.962565][ T254] ret_from_fork_asm+0x1a/0x30 [ 8742.962565][ T254] [ 8742.964707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.964707][ T254] netdev_get_by_index+0x5e/0x80 [ 8742.964707][ T254] fib6_nh_init+0x3d8/0x1580 [ 8742.964707][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8742.964707][ T254] ip6_route_add+0x1c/0x140 [ 8742.964707][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8742.964707][ T254] inet6_addr_add+0x4f8/0xa40 [ 8742.964707][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8742.964707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8742.964707][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.964707][ T254] netlink_unicast+0x449/0x710 [ 8742.964707][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.964707][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.964707][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.964707][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.964707][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.964707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8742.964707][ T254] [ 8742.966957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.966957][ T254] netdev_get_by_index+0x5e/0x80 [ 8742.966957][ T254] fib6_nh_init+0x3d8/0x1580 [ 8742.966957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8742.966957][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8742.966957][ T254] ipv6_add_addr+0x411/0x2000 [ 8742.966957][ T254] inet6_addr_add+0x30e/0xa40 [ 8742.966957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8742.966957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8742.966957][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.966957][ T254] netlink_unicast+0x449/0x710 [ 8742.966957][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.966957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.966957][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.966957][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.966957][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.966957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8742.966957][ T254] [ 8742.969201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.969201][ T254] netdev_get_by_index+0x5e/0x80 [ 8742.969201][ T254] fib6_nh_init+0x3d8/0x1580 [ 8742.969201][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8742.969201][ T254] ip6_route_add+0x1c/0x140 [ 8742.969201][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8742.969201][ T254] addrconf_add_dev+0xe2/0x170 [ 8742.969201][ T254] inet6_addr_add+0x12f/0xa40 [ 8742.969201][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8742.969201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8742.969201][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.969201][ T254] netlink_unicast+0x449/0x710 [ 8742.969201][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.969201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.969201][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.969201][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.969201][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.969201][ T254] [ 8742.971406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.971406][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8742.971406][ T254] ipv6_find_idev+0x102/0x170 [ 8742.971406][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8742.971406][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8742.971406][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.971406][ T254] netlink_unicast+0x449/0x710 [ 8742.971406][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.971406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.971406][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.971406][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.971406][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.971406][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8742.971406][ T254] [ 8742.973127][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8742.973127][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8742.973127][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8742.973127][ T254] ipv6_find_idev+0x102/0x170 [ 8742.973127][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8742.973127][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8742.973127][ T254] netlink_rcv_skb+0x130/0x360 [ 8742.973127][ T254] netlink_unicast+0x449/0x710 [ 8742.973127][ T254] netlink_sendmsg+0x723/0xbe0 [ 8742.973127][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8742.973127][ T254] ___sys_sendmsg+0xee/0x170 [ 8742.973127][ T254] __sys_sendmsg+0xcd/0x170 [ 8742.973127][ T254] do_syscall_64+0xc6/0x1e0 [ 8742.973127][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8742.973127][ T254] [ 8753.215898][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8753.216368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.216368][ T254] dst_init+0x84/0x4a0 [ 8753.216368][ T254] dst_alloc+0x97/0x150 [ 8753.216368][ T254] ip6_dst_alloc+0x23/0x90 [ 8753.216368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8753.216368][ T254] ip6_pol_route+0x56f/0x840 [ 8753.216368][ T254] fib6_rule_lookup+0x334/0x630 [ 8753.216368][ T254] ip6_route_output_flags+0x259/0x480 [ 8753.216368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8753.216368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8753.216368][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.216368][ T254] netlink_unicast+0x449/0x710 [ 8753.216368][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.216368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.216368][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.216368][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.216368][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.216368][ T254] [ 8753.218597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.218597][ T254] netdev_get_by_index+0x5e/0x80 [ 8753.218597][ T254] fib6_nh_init+0x3d8/0x1580 [ 8753.218597][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8753.218597][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8753.218597][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8753.218597][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8753.218597][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8753.218597][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8753.218597][ T254] addrconf_dad_begin+0x310/0x670 [ 8753.218597][ T254] addrconf_dad_work+0x10b/0xab0 [ 8753.218597][ T254] process_one_work+0x84d/0x18a0 [ 8753.218597][ T254] worker_thread+0x587/0xd30 [ 8753.218597][ T254] kthread+0x28a/0x350 [ 8753.218597][ T254] ret_from_fork+0x31/0x70 [ 8753.218597][ T254] ret_from_fork_asm+0x1a/0x30 [ 8753.218597][ T254] [ 8753.220745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.220745][ T254] netdev_get_by_index+0x5e/0x80 [ 8753.220745][ T254] fib6_nh_init+0x3d8/0x1580 [ 8753.220745][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8753.220745][ T254] ip6_route_add+0x1c/0x140 [ 8753.220745][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8753.220745][ T254] inet6_addr_add+0x4f8/0xa40 [ 8753.220745][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8753.220745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8753.220745][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.220745][ T254] netlink_unicast+0x449/0x710 [ 8753.220745][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.220745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.220745][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.220745][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.220745][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.220745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8753.220745][ T254] [ 8753.222996][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.222996][ T254] netdev_get_by_index+0x5e/0x80 [ 8753.222996][ T254] fib6_nh_init+0x3d8/0x1580 [ 8753.222996][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8753.222996][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8753.222996][ T254] ipv6_add_addr+0x411/0x2000 [ 8753.222996][ T254] inet6_addr_add+0x30e/0xa40 [ 8753.222996][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8753.222996][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8753.222996][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.222996][ T254] netlink_unicast+0x449/0x710 [ 8753.222996][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.222996][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.222996][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.222996][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.222996][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.222996][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8753.222996][ T254] [ 8753.225240][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.225240][ T254] netdev_get_by_index+0x5e/0x80 [ 8753.225240][ T254] fib6_nh_init+0x3d8/0x1580 [ 8753.225240][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8753.225240][ T254] ip6_route_add+0x1c/0x140 [ 8753.225240][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8753.225240][ T254] addrconf_add_dev+0xe2/0x170 [ 8753.225240][ T254] inet6_addr_add+0x12f/0xa40 [ 8753.225240][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8753.225240][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8753.225240][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.225240][ T254] netlink_unicast+0x449/0x710 [ 8753.225240][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.225240][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.225240][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.225240][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.225240][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.225240][ T254] [ 8753.227456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.227456][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8753.227456][ T254] ipv6_find_idev+0x102/0x170 [ 8753.227456][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8753.227456][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8753.227456][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.227456][ T254] netlink_unicast+0x449/0x710 [ 8753.227456][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.227456][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.227456][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.227456][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.227456][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.227456][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8753.227456][ T254] [ 8753.229194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8753.229194][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8753.229194][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8753.229194][ T254] ipv6_find_idev+0x102/0x170 [ 8753.229194][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8753.229194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8753.229194][ T254] netlink_rcv_skb+0x130/0x360 [ 8753.229194][ T254] netlink_unicast+0x449/0x710 [ 8753.229194][ T254] netlink_sendmsg+0x723/0xbe0 [ 8753.229194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8753.229194][ T254] ___sys_sendmsg+0xee/0x170 [ 8753.229194][ T254] __sys_sendmsg+0xcd/0x170 [ 8753.229194][ T254] do_syscall_64+0xc6/0x1e0 [ 8753.229194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8753.229194][ T254] [ 8763.839947][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8763.840477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.840477][ T254] dst_init+0x84/0x4a0 [ 8763.840477][ T254] dst_alloc+0x97/0x150 [ 8763.840477][ T254] ip6_dst_alloc+0x23/0x90 [ 8763.840477][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8763.840477][ T254] ip6_pol_route+0x56f/0x840 [ 8763.840477][ T254] fib6_rule_lookup+0x334/0x630 [ 8763.840477][ T254] ip6_route_output_flags+0x259/0x480 [ 8763.840477][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8763.840477][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8763.840477][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.840477][ T254] netlink_unicast+0x449/0x710 [ 8763.840477][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.840477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.840477][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.840477][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.840477][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.840477][ T254] [ 8763.842685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.842685][ T254] netdev_get_by_index+0x5e/0x80 [ 8763.842685][ T254] fib6_nh_init+0x3d8/0x1580 [ 8763.842685][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8763.842685][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8763.842685][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8763.842685][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8763.842685][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8763.842685][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8763.842685][ T254] addrconf_dad_begin+0x310/0x670 [ 8763.842685][ T254] addrconf_dad_work+0x10b/0xab0 [ 8763.842685][ T254] process_one_work+0x84d/0x18a0 [ 8763.842685][ T254] worker_thread+0x587/0xd30 [ 8763.842685][ T254] kthread+0x28a/0x350 [ 8763.842685][ T254] ret_from_fork+0x31/0x70 [ 8763.842685][ T254] ret_from_fork_asm+0x1a/0x30 [ 8763.842685][ T254] [ 8763.844846][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.844846][ T254] netdev_get_by_index+0x5e/0x80 [ 8763.844846][ T254] fib6_nh_init+0x3d8/0x1580 [ 8763.844846][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8763.844846][ T254] ip6_route_add+0x1c/0x140 [ 8763.844846][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8763.844846][ T254] inet6_addr_add+0x4f8/0xa40 [ 8763.844846][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8763.844846][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8763.844846][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.844846][ T254] netlink_unicast+0x449/0x710 [ 8763.844846][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.844846][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.844846][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.844846][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.844846][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.844846][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8763.844846][ T254] [ 8763.847114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.847114][ T254] netdev_get_by_index+0x5e/0x80 [ 8763.847114][ T254] fib6_nh_init+0x3d8/0x1580 [ 8763.847114][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8763.847114][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8763.847114][ T254] ipv6_add_addr+0x411/0x2000 [ 8763.847114][ T254] inet6_addr_add+0x30e/0xa40 [ 8763.847114][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8763.847114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8763.847114][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.847114][ T254] netlink_unicast+0x449/0x710 [ 8763.847114][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.847114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.847114][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.847114][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.847114][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.847114][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8763.847114][ T254] [ 8763.849360][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.849360][ T254] netdev_get_by_index+0x5e/0x80 [ 8763.849360][ T254] fib6_nh_init+0x3d8/0x1580 [ 8763.849360][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8763.849360][ T254] ip6_route_add+0x1c/0x140 [ 8763.849360][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8763.849360][ T254] addrconf_add_dev+0xe2/0x170 [ 8763.849360][ T254] inet6_addr_add+0x12f/0xa40 [ 8763.849360][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8763.849360][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8763.849360][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.849360][ T254] netlink_unicast+0x449/0x710 [ 8763.849360][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.849360][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.849360][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.849360][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.849360][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.849360][ T254] [ 8763.851561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.851561][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8763.851561][ T254] ipv6_find_idev+0x102/0x170 [ 8763.851561][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8763.851561][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8763.851561][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.851561][ T254] netlink_unicast+0x449/0x710 [ 8763.851561][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.851561][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.851561][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.851561][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.851561][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.851561][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8763.851561][ T254] [ 8763.853284][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8763.853284][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8763.853284][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8763.853284][ T254] ipv6_find_idev+0x102/0x170 [ 8763.853284][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8763.853284][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8763.853284][ T254] netlink_rcv_skb+0x130/0x360 [ 8763.853284][ T254] netlink_unicast+0x449/0x710 [ 8763.853284][ T254] netlink_sendmsg+0x723/0xbe0 [ 8763.853284][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8763.853284][ T254] ___sys_sendmsg+0xee/0x170 [ 8763.853284][ T254] __sys_sendmsg+0xcd/0x170 [ 8763.853284][ T254] do_syscall_64+0xc6/0x1e0 [ 8763.853284][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8763.853284][ T254] [ 8774.103919][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8774.104446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.104446][ T254] dst_init+0x84/0x4a0 [ 8774.104446][ T254] dst_alloc+0x97/0x150 [ 8774.104446][ T254] ip6_dst_alloc+0x23/0x90 [ 8774.104446][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8774.104446][ T254] ip6_pol_route+0x56f/0x840 [ 8774.104446][ T254] fib6_rule_lookup+0x334/0x630 [ 8774.104446][ T254] ip6_route_output_flags+0x259/0x480 [ 8774.104446][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8774.104446][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8774.104446][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.104446][ T254] netlink_unicast+0x449/0x710 [ 8774.104446][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.104446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.104446][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.104446][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.104446][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.104446][ T254] [ 8774.106666][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.106666][ T254] netdev_get_by_index+0x5e/0x80 [ 8774.106666][ T254] fib6_nh_init+0x3d8/0x1580 [ 8774.106666][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8774.106666][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8774.106666][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8774.106666][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8774.106666][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8774.106666][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8774.106666][ T254] addrconf_dad_begin+0x310/0x670 [ 8774.106666][ T254] addrconf_dad_work+0x10b/0xab0 [ 8774.106666][ T254] process_one_work+0x84d/0x18a0 [ 8774.106666][ T254] worker_thread+0x587/0xd30 [ 8774.106666][ T254] kthread+0x28a/0x350 [ 8774.106666][ T254] ret_from_fork+0x31/0x70 [ 8774.106666][ T254] ret_from_fork_asm+0x1a/0x30 [ 8774.106666][ T254] [ 8774.108823][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.108823][ T254] netdev_get_by_index+0x5e/0x80 [ 8774.108823][ T254] fib6_nh_init+0x3d8/0x1580 [ 8774.108823][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8774.108823][ T254] ip6_route_add+0x1c/0x140 [ 8774.108823][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8774.108823][ T254] inet6_addr_add+0x4f8/0xa40 [ 8774.108823][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8774.108823][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8774.108823][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.108823][ T254] netlink_unicast+0x449/0x710 [ 8774.108823][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.108823][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.108823][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.108823][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.108823][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.108823][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8774.108823][ T254] [ 8774.111067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.111067][ T254] netdev_get_by_index+0x5e/0x80 [ 8774.111067][ T254] fib6_nh_init+0x3d8/0x1580 [ 8774.111067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8774.111067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8774.111067][ T254] ipv6_add_addr+0x411/0x2000 [ 8774.111067][ T254] inet6_addr_add+0x30e/0xa40 [ 8774.111067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8774.111067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8774.111067][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.111067][ T254] netlink_unicast+0x449/0x710 [ 8774.111067][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.111067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.111067][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.111067][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.111067][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.111067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8774.111067][ T254] [ 8774.113302][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.113302][ T254] netdev_get_by_index+0x5e/0x80 [ 8774.113302][ T254] fib6_nh_init+0x3d8/0x1580 [ 8774.113302][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8774.113302][ T254] ip6_route_add+0x1c/0x140 [ 8774.113302][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8774.113302][ T254] addrconf_add_dev+0xe2/0x170 [ 8774.113302][ T254] inet6_addr_add+0x12f/0xa40 [ 8774.113302][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8774.113302][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8774.113302][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.113302][ T254] netlink_unicast+0x449/0x710 [ 8774.113302][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.113302][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.113302][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.113302][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.113302][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.113302][ T254] [ 8774.115504][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.115504][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8774.115504][ T254] ipv6_find_idev+0x102/0x170 [ 8774.115504][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8774.115504][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8774.115504][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.115504][ T254] netlink_unicast+0x449/0x710 [ 8774.115504][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.115504][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.115504][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.115504][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.115504][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.115504][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8774.115504][ T254] [ 8774.117232][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8774.117232][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8774.117232][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8774.117232][ T254] ipv6_find_idev+0x102/0x170 [ 8774.117232][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8774.117232][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8774.117232][ T254] netlink_rcv_skb+0x130/0x360 [ 8774.117232][ T254] netlink_unicast+0x449/0x710 [ 8774.117232][ T254] netlink_sendmsg+0x723/0xbe0 [ 8774.117232][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8774.117232][ T254] ___sys_sendmsg+0xee/0x170 [ 8774.117232][ T254] __sys_sendmsg+0xcd/0x170 [ 8774.117232][ T254] do_syscall_64+0xc6/0x1e0 [ 8774.117232][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8774.117232][ T254] [ 8784.367841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8784.368359][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.368359][ T254] dst_init+0x84/0x4a0 [ 8784.368359][ T254] dst_alloc+0x97/0x150 [ 8784.368359][ T254] ip6_dst_alloc+0x23/0x90 [ 8784.368359][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8784.368359][ T254] ip6_pol_route+0x56f/0x840 [ 8784.368359][ T254] fib6_rule_lookup+0x334/0x630 [ 8784.368359][ T254] ip6_route_output_flags+0x259/0x480 [ 8784.368359][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8784.368359][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8784.368359][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.368359][ T254] netlink_unicast+0x449/0x710 [ 8784.368359][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.368359][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.368359][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.368359][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.368359][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.368359][ T254] [ 8784.370577][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.370577][ T254] netdev_get_by_index+0x5e/0x80 [ 8784.370577][ T254] fib6_nh_init+0x3d8/0x1580 [ 8784.370577][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8784.370577][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8784.370577][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8784.370577][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8784.370577][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8784.370577][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8784.370577][ T254] addrconf_dad_begin+0x310/0x670 [ 8784.370577][ T254] addrconf_dad_work+0x10b/0xab0 [ 8784.370577][ T254] process_one_work+0x84d/0x18a0 [ 8784.370577][ T254] worker_thread+0x587/0xd30 [ 8784.370577][ T254] kthread+0x28a/0x350 [ 8784.370577][ T254] ret_from_fork+0x31/0x70 [ 8784.370577][ T254] ret_from_fork_asm+0x1a/0x30 [ 8784.370577][ T254] [ 8784.372729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.372729][ T254] netdev_get_by_index+0x5e/0x80 [ 8784.372729][ T254] fib6_nh_init+0x3d8/0x1580 [ 8784.372729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8784.372729][ T254] ip6_route_add+0x1c/0x140 [ 8784.372729][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8784.372729][ T254] inet6_addr_add+0x4f8/0xa40 [ 8784.372729][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8784.372729][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8784.372729][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.372729][ T254] netlink_unicast+0x449/0x710 [ 8784.372729][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.372729][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.372729][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.372729][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.372729][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.372729][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8784.372729][ T254] [ 8784.374980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.374980][ T254] netdev_get_by_index+0x5e/0x80 [ 8784.374980][ T254] fib6_nh_init+0x3d8/0x1580 [ 8784.374980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8784.374980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8784.374980][ T254] ipv6_add_addr+0x411/0x2000 [ 8784.374980][ T254] inet6_addr_add+0x30e/0xa40 [ 8784.374980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8784.374980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8784.374980][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.374980][ T254] netlink_unicast+0x449/0x710 [ 8784.374980][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.374980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.374980][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.374980][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.374980][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.374980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8784.374980][ T254] [ 8784.377239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.377239][ T254] netdev_get_by_index+0x5e/0x80 [ 8784.377239][ T254] fib6_nh_init+0x3d8/0x1580 [ 8784.377239][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8784.377239][ T254] ip6_route_add+0x1c/0x140 [ 8784.377239][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8784.377239][ T254] addrconf_add_dev+0xe2/0x170 [ 8784.377239][ T254] inet6_addr_add+0x12f/0xa40 [ 8784.377239][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8784.377239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8784.377239][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.377239][ T254] netlink_unicast+0x449/0x710 [ 8784.377239][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.377239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.377239][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.377239][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.377239][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.377239][ T254] [ 8784.379439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.379439][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8784.379439][ T254] ipv6_find_idev+0x102/0x170 [ 8784.379439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8784.379439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8784.379439][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.379439][ T254] netlink_unicast+0x449/0x710 [ 8784.379439][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.379439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.379439][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.379439][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.379439][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.379439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8784.379439][ T254] [ 8784.381163][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8784.381163][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8784.381163][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8784.381163][ T254] ipv6_find_idev+0x102/0x170 [ 8784.381163][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8784.381163][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8784.381163][ T254] netlink_rcv_skb+0x130/0x360 [ 8784.381163][ T254] netlink_unicast+0x449/0x710 [ 8784.381163][ T254] netlink_sendmsg+0x723/0xbe0 [ 8784.381163][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8784.381163][ T254] ___sys_sendmsg+0xee/0x170 [ 8784.381163][ T254] __sys_sendmsg+0xcd/0x170 [ 8784.381163][ T254] do_syscall_64+0xc6/0x1e0 [ 8784.381163][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8784.381163][ T254] [ 8794.591853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8794.592384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.592384][ T254] dst_init+0x84/0x4a0 [ 8794.592384][ T254] dst_alloc+0x97/0x150 [ 8794.592384][ T254] ip6_dst_alloc+0x23/0x90 [ 8794.592384][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8794.592384][ T254] ip6_pol_route+0x56f/0x840 [ 8794.592384][ T254] fib6_rule_lookup+0x334/0x630 [ 8794.592384][ T254] ip6_route_output_flags+0x259/0x480 [ 8794.592384][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8794.592384][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8794.592384][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.592384][ T254] netlink_unicast+0x449/0x710 [ 8794.592384][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.592384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.592384][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.592384][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.592384][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.592384][ T254] [ 8794.594589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.594589][ T254] netdev_get_by_index+0x5e/0x80 [ 8794.594589][ T254] fib6_nh_init+0x3d8/0x1580 [ 8794.594589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8794.594589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8794.594589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8794.594589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8794.594589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8794.594589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8794.594589][ T254] addrconf_dad_begin+0x310/0x670 [ 8794.594589][ T254] addrconf_dad_work+0x10b/0xab0 [ 8794.594589][ T254] process_one_work+0x84d/0x18a0 [ 8794.594589][ T254] worker_thread+0x587/0xd30 [ 8794.594589][ T254] kthread+0x28a/0x350 [ 8794.594589][ T254] ret_from_fork+0x31/0x70 [ 8794.594589][ T254] ret_from_fork_asm+0x1a/0x30 [ 8794.594589][ T254] [ 8794.596797][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.596797][ T254] netdev_get_by_index+0x5e/0x80 [ 8794.596797][ T254] fib6_nh_init+0x3d8/0x1580 [ 8794.596797][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8794.596797][ T254] ip6_route_add+0x1c/0x140 [ 8794.596797][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8794.596797][ T254] inet6_addr_add+0x4f8/0xa40 [ 8794.596797][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8794.596797][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8794.596797][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.596797][ T254] netlink_unicast+0x449/0x710 [ 8794.596797][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.596797][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.596797][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.596797][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.596797][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.596797][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8794.596797][ T254] [ 8794.599035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.599035][ T254] netdev_get_by_index+0x5e/0x80 [ 8794.599035][ T254] fib6_nh_init+0x3d8/0x1580 [ 8794.599035][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8794.599035][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8794.599035][ T254] ipv6_add_addr+0x411/0x2000 [ 8794.599035][ T254] inet6_addr_add+0x30e/0xa40 [ 8794.599035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8794.599035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8794.599035][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.599035][ T254] netlink_unicast+0x449/0x710 [ 8794.599035][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.599035][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.599035][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.599035][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.599035][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.599035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8794.599035][ T254] [ 8794.601291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.601291][ T254] netdev_get_by_index+0x5e/0x80 [ 8794.601291][ T254] fib6_nh_init+0x3d8/0x1580 [ 8794.601291][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8794.601291][ T254] ip6_route_add+0x1c/0x140 [ 8794.601291][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8794.601291][ T254] addrconf_add_dev+0xe2/0x170 [ 8794.601291][ T254] inet6_addr_add+0x12f/0xa40 [ 8794.601291][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8794.601291][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8794.601291][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.601291][ T254] netlink_unicast+0x449/0x710 [ 8794.601291][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.601291][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.601291][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.601291][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.601291][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.601291][ T254] [ 8794.603490][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.603490][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8794.603490][ T254] ipv6_find_idev+0x102/0x170 [ 8794.603490][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8794.603490][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8794.603490][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.603490][ T254] netlink_unicast+0x449/0x710 [ 8794.603490][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.603490][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.603490][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.603490][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.603490][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.603490][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8794.603490][ T254] [ 8794.605220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8794.605220][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8794.605220][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8794.605220][ T254] ipv6_find_idev+0x102/0x170 [ 8794.605220][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8794.605220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8794.605220][ T254] netlink_rcv_skb+0x130/0x360 [ 8794.605220][ T254] netlink_unicast+0x449/0x710 [ 8794.605220][ T254] netlink_sendmsg+0x723/0xbe0 [ 8794.605220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8794.605220][ T254] ___sys_sendmsg+0xee/0x170 [ 8794.605220][ T254] __sys_sendmsg+0xcd/0x170 [ 8794.605220][ T254] do_syscall_64+0xc6/0x1e0 [ 8794.605220][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8794.605220][ T254] [ 8804.847837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8804.848374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.848374][ T254] dst_init+0x84/0x4a0 [ 8804.848374][ T254] dst_alloc+0x97/0x150 [ 8804.848374][ T254] ip6_dst_alloc+0x23/0x90 [ 8804.848374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8804.848374][ T254] ip6_pol_route+0x56f/0x840 [ 8804.848374][ T254] fib6_rule_lookup+0x334/0x630 [ 8804.848374][ T254] ip6_route_output_flags+0x259/0x480 [ 8804.848374][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8804.848374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8804.848374][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.848374][ T254] netlink_unicast+0x449/0x710 [ 8804.848374][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.848374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.848374][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.848374][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.848374][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.848374][ T254] [ 8804.850576][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.850576][ T254] netdev_get_by_index+0x5e/0x80 [ 8804.850576][ T254] fib6_nh_init+0x3d8/0x1580 [ 8804.850576][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8804.850576][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8804.850576][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8804.850576][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8804.850576][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8804.850576][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8804.850576][ T254] addrconf_dad_begin+0x310/0x670 [ 8804.850576][ T254] addrconf_dad_work+0x10b/0xab0 [ 8804.850576][ T254] process_one_work+0x84d/0x18a0 [ 8804.850576][ T254] worker_thread+0x587/0xd30 [ 8804.850576][ T254] kthread+0x28a/0x350 [ 8804.850576][ T254] ret_from_fork+0x31/0x70 [ 8804.850576][ T254] ret_from_fork_asm+0x1a/0x30 [ 8804.850576][ T254] [ 8804.852729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.852729][ T254] netdev_get_by_index+0x5e/0x80 [ 8804.852729][ T254] fib6_nh_init+0x3d8/0x1580 [ 8804.852729][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8804.852729][ T254] ip6_route_add+0x1c/0x140 [ 8804.852729][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8804.852729][ T254] inet6_addr_add+0x4f8/0xa40 [ 8804.852729][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8804.852729][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8804.852729][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.852729][ T254] netlink_unicast+0x449/0x710 [ 8804.852729][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.852729][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.852729][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.852729][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.852729][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.852729][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8804.852729][ T254] [ 8804.855039][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.855039][ T254] netdev_get_by_index+0x5e/0x80 [ 8804.855039][ T254] fib6_nh_init+0x3d8/0x1580 [ 8804.855039][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8804.855039][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8804.855039][ T254] ipv6_add_addr+0x411/0x2000 [ 8804.855039][ T254] inet6_addr_add+0x30e/0xa40 [ 8804.855039][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8804.855039][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8804.855039][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.855039][ T254] netlink_unicast+0x449/0x710 [ 8804.855039][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.855039][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.855039][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.855039][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.855039][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.855039][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8804.855039][ T254] [ 8804.857345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.857345][ T254] netdev_get_by_index+0x5e/0x80 [ 8804.857345][ T254] fib6_nh_init+0x3d8/0x1580 [ 8804.857345][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8804.857345][ T254] ip6_route_add+0x1c/0x140 [ 8804.857345][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8804.857345][ T254] addrconf_add_dev+0xe2/0x170 [ 8804.857345][ T254] inet6_addr_add+0x12f/0xa40 [ 8804.857345][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8804.857345][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8804.857345][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.857345][ T254] netlink_unicast+0x449/0x710 [ 8804.857345][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.857345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.857345][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.857345][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.857345][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.857345][ T254] [ 8804.859607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.859607][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8804.859607][ T254] ipv6_find_idev+0x102/0x170 [ 8804.859607][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8804.859607][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8804.859607][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.859607][ T254] netlink_unicast+0x449/0x710 [ 8804.859607][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.859607][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.859607][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.859607][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.859607][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.859607][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8804.859607][ T254] [ 8804.861378][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8804.861378][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8804.861378][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8804.861378][ T254] ipv6_find_idev+0x102/0x170 [ 8804.861378][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8804.861378][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8804.861378][ T254] netlink_rcv_skb+0x130/0x360 [ 8804.861378][ T254] netlink_unicast+0x449/0x710 [ 8804.861378][ T254] netlink_sendmsg+0x723/0xbe0 [ 8804.861378][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8804.861378][ T254] ___sys_sendmsg+0xee/0x170 [ 8804.861378][ T254] __sys_sendmsg+0xcd/0x170 [ 8804.861378][ T254] do_syscall_64+0xc6/0x1e0 [ 8804.861378][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8804.861378][ T254] [ 8814.935842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8814.936321][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.936321][ T254] dst_init+0x84/0x4a0 [ 8814.936321][ T254] dst_alloc+0x97/0x150 [ 8814.936321][ T254] ip6_dst_alloc+0x23/0x90 [ 8814.936321][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8814.936321][ T254] ip6_pol_route+0x56f/0x840 [ 8814.936321][ T254] fib6_rule_lookup+0x334/0x630 [ 8814.936321][ T254] ip6_route_output_flags+0x259/0x480 [ 8814.936321][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8814.936321][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8814.936321][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.936321][ T254] netlink_unicast+0x449/0x710 [ 8814.936321][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.936321][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.936321][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.936321][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.936321][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.936321][ T254] [ 8814.938643][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.938643][ T254] netdev_get_by_index+0x5e/0x80 [ 8814.938643][ T254] fib6_nh_init+0x3d8/0x1580 [ 8814.938643][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8814.938643][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8814.938643][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8814.938643][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8814.938643][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8814.938643][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8814.938643][ T254] addrconf_dad_begin+0x310/0x670 [ 8814.938643][ T254] addrconf_dad_work+0x10b/0xab0 [ 8814.938643][ T254] process_one_work+0x84d/0x18a0 [ 8814.938643][ T254] worker_thread+0x587/0xd30 [ 8814.938643][ T254] kthread+0x28a/0x350 [ 8814.938643][ T254] ret_from_fork+0x31/0x70 [ 8814.938643][ T254] ret_from_fork_asm+0x1a/0x30 [ 8814.938643][ T254] [ 8814.940849][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.940849][ T254] netdev_get_by_index+0x5e/0x80 [ 8814.940849][ T254] fib6_nh_init+0x3d8/0x1580 [ 8814.940849][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8814.940849][ T254] ip6_route_add+0x1c/0x140 [ 8814.940849][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8814.940849][ T254] inet6_addr_add+0x4f8/0xa40 [ 8814.940849][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8814.940849][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8814.940849][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.940849][ T254] netlink_unicast+0x449/0x710 [ 8814.940849][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.940849][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.940849][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.940849][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.940849][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.940849][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8814.940849][ T254] [ 8814.943159][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.943159][ T254] netdev_get_by_index+0x5e/0x80 [ 8814.943159][ T254] fib6_nh_init+0x3d8/0x1580 [ 8814.943159][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8814.943159][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8814.943159][ T254] ipv6_add_addr+0x411/0x2000 [ 8814.943159][ T254] inet6_addr_add+0x30e/0xa40 [ 8814.943159][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8814.943159][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8814.943159][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.943159][ T254] netlink_unicast+0x449/0x710 [ 8814.943159][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.943159][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.943159][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.943159][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.943159][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.943159][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8814.943159][ T254] [ 8814.945463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.945463][ T254] netdev_get_by_index+0x5e/0x80 [ 8814.945463][ T254] fib6_nh_init+0x3d8/0x1580 [ 8814.945463][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8814.945463][ T254] ip6_route_add+0x1c/0x140 [ 8814.945463][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8814.945463][ T254] addrconf_add_dev+0xe2/0x170 [ 8814.945463][ T254] inet6_addr_add+0x12f/0xa40 [ 8814.945463][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8814.945463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8814.945463][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.945463][ T254] netlink_unicast+0x449/0x710 [ 8814.945463][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.945463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.945463][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.945463][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.945463][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.945463][ T254] [ 8814.947750][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.947750][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8814.947750][ T254] ipv6_find_idev+0x102/0x170 [ 8814.947750][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8814.947750][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8814.947750][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.947750][ T254] netlink_unicast+0x449/0x710 [ 8814.947750][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.947750][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.947750][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.947750][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.947750][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.947750][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8814.947750][ T254] [ 8814.949525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8814.949525][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8814.949525][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8814.949525][ T254] ipv6_find_idev+0x102/0x170 [ 8814.949525][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8814.949525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8814.949525][ T254] netlink_rcv_skb+0x130/0x360 [ 8814.949525][ T254] netlink_unicast+0x449/0x710 [ 8814.949525][ T254] netlink_sendmsg+0x723/0xbe0 [ 8814.949525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8814.949525][ T254] ___sys_sendmsg+0xee/0x170 [ 8814.949525][ T254] __sys_sendmsg+0xcd/0x170 [ 8814.949525][ T254] do_syscall_64+0xc6/0x1e0 [ 8814.949525][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8814.949525][ T254] [ 8825.199837][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8825.200323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.200323][ T254] dst_init+0x84/0x4a0 [ 8825.200323][ T254] dst_alloc+0x97/0x150 [ 8825.200323][ T254] ip6_dst_alloc+0x23/0x90 [ 8825.200323][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8825.200323][ T254] ip6_pol_route+0x56f/0x840 [ 8825.200323][ T254] fib6_rule_lookup+0x334/0x630 [ 8825.200323][ T254] ip6_route_output_flags+0x259/0x480 [ 8825.200323][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8825.200323][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8825.200323][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.200323][ T254] netlink_unicast+0x449/0x710 [ 8825.200323][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.200323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.200323][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.200323][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.200323][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.200323][ T254] [ 8825.202634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.202634][ T254] netdev_get_by_index+0x5e/0x80 [ 8825.202634][ T254] fib6_nh_init+0x3d8/0x1580 [ 8825.202634][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8825.202634][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8825.202634][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8825.202634][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8825.202634][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8825.202634][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8825.202634][ T254] addrconf_dad_begin+0x310/0x670 [ 8825.202634][ T254] addrconf_dad_work+0x10b/0xab0 [ 8825.202634][ T254] process_one_work+0x84d/0x18a0 [ 8825.202634][ T254] worker_thread+0x587/0xd30 [ 8825.202634][ T254] kthread+0x28a/0x350 [ 8825.202634][ T254] ret_from_fork+0x31/0x70 [ 8825.202634][ T254] ret_from_fork_asm+0x1a/0x30 [ 8825.202634][ T254] [ 8825.204857][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.204857][ T254] netdev_get_by_index+0x5e/0x80 [ 8825.204857][ T254] fib6_nh_init+0x3d8/0x1580 [ 8825.204857][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8825.204857][ T254] ip6_route_add+0x1c/0x140 [ 8825.204857][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8825.204857][ T254] inet6_addr_add+0x4f8/0xa40 [ 8825.204857][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8825.204857][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8825.204857][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.204857][ T254] netlink_unicast+0x449/0x710 [ 8825.204857][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.204857][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.204857][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.204857][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.204857][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.204857][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8825.204857][ T254] [ 8825.207185][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.207185][ T254] netdev_get_by_index+0x5e/0x80 [ 8825.207185][ T254] fib6_nh_init+0x3d8/0x1580 [ 8825.207185][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8825.207185][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8825.207185][ T254] ipv6_add_addr+0x411/0x2000 [ 8825.207185][ T254] inet6_addr_add+0x30e/0xa40 [ 8825.207185][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8825.207185][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8825.207185][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.207185][ T254] netlink_unicast+0x449/0x710 [ 8825.207185][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.207185][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.207185][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.207185][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.207185][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.207185][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8825.207185][ T254] [ 8825.209502][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.209502][ T254] netdev_get_by_index+0x5e/0x80 [ 8825.209502][ T254] fib6_nh_init+0x3d8/0x1580 [ 8825.209502][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8825.209502][ T254] ip6_route_add+0x1c/0x140 [ 8825.209502][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8825.209502][ T254] addrconf_add_dev+0xe2/0x170 [ 8825.209502][ T254] inet6_addr_add+0x12f/0xa40 [ 8825.209502][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8825.209502][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8825.209502][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.209502][ T254] netlink_unicast+0x449/0x710 [ 8825.209502][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.209502][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.209502][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.209502][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.209502][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.209502][ T254] [ 8825.211767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.211767][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8825.211767][ T254] ipv6_find_idev+0x102/0x170 [ 8825.211767][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8825.211767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8825.211767][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.211767][ T254] netlink_unicast+0x449/0x710 [ 8825.211767][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.211767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.211767][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.211767][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.211767][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.211767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8825.211767][ T254] [ 8825.213548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8825.213548][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8825.213548][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8825.213548][ T254] ipv6_find_idev+0x102/0x170 [ 8825.213548][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8825.213548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8825.213548][ T254] netlink_rcv_skb+0x130/0x360 [ 8825.213548][ T254] netlink_unicast+0x449/0x710 [ 8825.213548][ T254] netlink_sendmsg+0x723/0xbe0 [ 8825.213548][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8825.213548][ T254] ___sys_sendmsg+0xee/0x170 [ 8825.213548][ T254] __sys_sendmsg+0xcd/0x170 [ 8825.213548][ T254] do_syscall_64+0xc6/0x1e0 [ 8825.213548][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8825.213548][ T254] [ 8835.463892][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8835.464461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.464461][ T254] dst_init+0x84/0x4a0 [ 8835.464461][ T254] dst_alloc+0x97/0x150 [ 8835.464461][ T254] ip6_dst_alloc+0x23/0x90 [ 8835.464461][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8835.464461][ T254] ip6_pol_route+0x56f/0x840 [ 8835.464461][ T254] fib6_rule_lookup+0x334/0x630 [ 8835.464461][ T254] ip6_route_output_flags+0x259/0x480 [ 8835.464461][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8835.464461][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8835.464461][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.464461][ T254] netlink_unicast+0x449/0x710 [ 8835.464461][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.464461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.464461][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.464461][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.464461][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.464461][ T254] [ 8835.466769][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.466769][ T254] netdev_get_by_index+0x5e/0x80 [ 8835.466769][ T254] fib6_nh_init+0x3d8/0x1580 [ 8835.466769][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8835.466769][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8835.466769][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8835.466769][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8835.466769][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8835.466769][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8835.466769][ T254] addrconf_dad_begin+0x310/0x670 [ 8835.466769][ T254] addrconf_dad_work+0x10b/0xab0 [ 8835.466769][ T254] process_one_work+0x84d/0x18a0 [ 8835.466769][ T254] worker_thread+0x587/0xd30 [ 8835.466769][ T254] kthread+0x28a/0x350 [ 8835.466769][ T254] ret_from_fork+0x31/0x70 [ 8835.466769][ T254] ret_from_fork_asm+0x1a/0x30 [ 8835.466769][ T254] [ 8835.468983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.468983][ T254] netdev_get_by_index+0x5e/0x80 [ 8835.468983][ T254] fib6_nh_init+0x3d8/0x1580 [ 8835.468983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8835.468983][ T254] ip6_route_add+0x1c/0x140 [ 8835.468983][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8835.468983][ T254] inet6_addr_add+0x4f8/0xa40 [ 8835.468983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8835.468983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8835.468983][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.468983][ T254] netlink_unicast+0x449/0x710 [ 8835.468983][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.468983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.468983][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.468983][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.468983][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.468983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8835.468983][ T254] [ 8835.471300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.471300][ T254] netdev_get_by_index+0x5e/0x80 [ 8835.471300][ T254] fib6_nh_init+0x3d8/0x1580 [ 8835.471300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8835.471300][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8835.471300][ T254] ipv6_add_addr+0x411/0x2000 [ 8835.471300][ T254] inet6_addr_add+0x30e/0xa40 [ 8835.471300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8835.471300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8835.471300][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.471300][ T254] netlink_unicast+0x449/0x710 [ 8835.471300][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.471300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.471300][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.471300][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.471300][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.471300][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8835.471300][ T254] [ 8835.473627][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.473627][ T254] netdev_get_by_index+0x5e/0x80 [ 8835.473627][ T254] fib6_nh_init+0x3d8/0x1580 [ 8835.473627][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8835.473627][ T254] ip6_route_add+0x1c/0x140 [ 8835.473627][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8835.473627][ T254] addrconf_add_dev+0xe2/0x170 [ 8835.473627][ T254] inet6_addr_add+0x12f/0xa40 [ 8835.473627][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8835.473627][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8835.473627][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.473627][ T254] netlink_unicast+0x449/0x710 [ 8835.473627][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.473627][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.473627][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.473627][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.473627][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.473627][ T254] [ 8835.475892][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.475892][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8835.475892][ T254] ipv6_find_idev+0x102/0x170 [ 8835.475892][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8835.475892][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8835.475892][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.475892][ T254] netlink_unicast+0x449/0x710 [ 8835.475892][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.475892][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.475892][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.475892][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.475892][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.475892][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8835.475892][ T254] [ 8835.477676][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8835.477676][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8835.477676][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8835.477676][ T254] ipv6_find_idev+0x102/0x170 [ 8835.477676][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8835.477676][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8835.477676][ T254] netlink_rcv_skb+0x130/0x360 [ 8835.477676][ T254] netlink_unicast+0x449/0x710 [ 8835.477676][ T254] netlink_sendmsg+0x723/0xbe0 [ 8835.477676][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8835.477676][ T254] ___sys_sendmsg+0xee/0x170 [ 8835.477676][ T254] __sys_sendmsg+0xcd/0x170 [ 8835.477676][ T254] do_syscall_64+0xc6/0x1e0 [ 8835.477676][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8835.477676][ T254] [ 8845.727768][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8845.728322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.728322][ T254] dst_init+0x84/0x4a0 [ 8845.728322][ T254] dst_alloc+0x97/0x150 [ 8845.728322][ T254] ip6_dst_alloc+0x23/0x90 [ 8845.728322][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8845.728322][ T254] ip6_pol_route+0x56f/0x840 [ 8845.728322][ T254] fib6_rule_lookup+0x334/0x630 [ 8845.728322][ T254] ip6_route_output_flags+0x259/0x480 [ 8845.728322][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8845.728322][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8845.728322][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.728322][ T254] netlink_unicast+0x449/0x710 [ 8845.728322][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.728322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.728322][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.728322][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.728322][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.728322][ T254] [ 8845.730595][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.730595][ T254] netdev_get_by_index+0x5e/0x80 [ 8845.730595][ T254] fib6_nh_init+0x3d8/0x1580 [ 8845.730595][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8845.730595][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8845.730595][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8845.730595][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8845.730595][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8845.730595][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8845.730595][ T254] addrconf_dad_begin+0x310/0x670 [ 8845.730595][ T254] addrconf_dad_work+0x10b/0xab0 [ 8845.730595][ T254] process_one_work+0x84d/0x18a0 [ 8845.730595][ T254] worker_thread+0x587/0xd30 [ 8845.730595][ T254] kthread+0x28a/0x350 [ 8845.730595][ T254] ret_from_fork+0x31/0x70 [ 8845.730595][ T254] ret_from_fork_asm+0x1a/0x30 [ 8845.730595][ T254] [ 8845.732813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.732813][ T254] netdev_get_by_index+0x5e/0x80 [ 8845.732813][ T254] fib6_nh_init+0x3d8/0x1580 [ 8845.732813][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8845.732813][ T254] ip6_route_add+0x1c/0x140 [ 8845.732813][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8845.732813][ T254] inet6_addr_add+0x4f8/0xa40 [ 8845.732813][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8845.732813][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8845.732813][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.732813][ T254] netlink_unicast+0x449/0x710 [ 8845.732813][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.732813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.732813][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.732813][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.732813][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.732813][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8845.732813][ T254] [ 8845.735122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.735122][ T254] netdev_get_by_index+0x5e/0x80 [ 8845.735122][ T254] fib6_nh_init+0x3d8/0x1580 [ 8845.735122][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8845.735122][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8845.735122][ T254] ipv6_add_addr+0x411/0x2000 [ 8845.735122][ T254] inet6_addr_add+0x30e/0xa40 [ 8845.735122][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8845.735122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8845.735122][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.735122][ T254] netlink_unicast+0x449/0x710 [ 8845.735122][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.735122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.735122][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.735122][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.735122][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.735122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8845.735122][ T254] [ 8845.737443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.737443][ T254] netdev_get_by_index+0x5e/0x80 [ 8845.737443][ T254] fib6_nh_init+0x3d8/0x1580 [ 8845.737443][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8845.737443][ T254] ip6_route_add+0x1c/0x140 [ 8845.737443][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8845.737443][ T254] addrconf_add_dev+0xe2/0x170 [ 8845.737443][ T254] inet6_addr_add+0x12f/0xa40 [ 8845.737443][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8845.737443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8845.737443][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.737443][ T254] netlink_unicast+0x449/0x710 [ 8845.737443][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.737443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.737443][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.737443][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.737443][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.737443][ T254] [ 8845.739759][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.739759][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8845.739759][ T254] ipv6_find_idev+0x102/0x170 [ 8845.739759][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8845.739759][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8845.739759][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.739759][ T254] netlink_unicast+0x449/0x710 [ 8845.739759][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.739759][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.739759][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.739759][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.739759][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.739759][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8845.739759][ T254] [ 8845.741540][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8845.741540][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8845.741540][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8845.741540][ T254] ipv6_find_idev+0x102/0x170 [ 8845.741540][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8845.741540][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8845.741540][ T254] netlink_rcv_skb+0x130/0x360 [ 8845.741540][ T254] netlink_unicast+0x449/0x710 [ 8845.741540][ T254] netlink_sendmsg+0x723/0xbe0 [ 8845.741540][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8845.741540][ T254] ___sys_sendmsg+0xee/0x170 [ 8845.741540][ T254] __sys_sendmsg+0xcd/0x170 [ 8845.741540][ T254] do_syscall_64+0xc6/0x1e0 [ 8845.741540][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8845.741540][ T254] [ 8855.743780][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8855.744328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.744328][ T254] dst_init+0x84/0x4a0 [ 8855.744328][ T254] dst_alloc+0x97/0x150 [ 8855.744328][ T254] ip6_dst_alloc+0x23/0x90 [ 8855.744328][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8855.744328][ T254] ip6_pol_route+0x56f/0x840 [ 8855.744328][ T254] fib6_rule_lookup+0x334/0x630 [ 8855.744328][ T254] ip6_route_output_flags+0x259/0x480 [ 8855.744328][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8855.744328][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8855.744328][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.744328][ T254] netlink_unicast+0x449/0x710 [ 8855.744328][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.744328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.744328][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.744328][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.744328][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.744328][ T254] [ 8855.746647][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.746647][ T254] netdev_get_by_index+0x5e/0x80 [ 8855.746647][ T254] fib6_nh_init+0x3d8/0x1580 [ 8855.746647][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8855.746647][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8855.746647][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8855.746647][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8855.746647][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8855.746647][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8855.746647][ T254] addrconf_dad_begin+0x310/0x670 [ 8855.746647][ T254] addrconf_dad_work+0x10b/0xab0 [ 8855.746647][ T254] process_one_work+0x84d/0x18a0 [ 8855.746647][ T254] worker_thread+0x587/0xd30 [ 8855.746647][ T254] kthread+0x28a/0x350 [ 8855.746647][ T254] ret_from_fork+0x31/0x70 [ 8855.746647][ T254] ret_from_fork_asm+0x1a/0x30 [ 8855.746647][ T254] [ 8855.748872][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.748872][ T254] netdev_get_by_index+0x5e/0x80 [ 8855.748872][ T254] fib6_nh_init+0x3d8/0x1580 [ 8855.748872][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8855.748872][ T254] ip6_route_add+0x1c/0x140 [ 8855.748872][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8855.748872][ T254] inet6_addr_add+0x4f8/0xa40 [ 8855.748872][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8855.748872][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8855.748872][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.748872][ T254] netlink_unicast+0x449/0x710 [ 8855.748872][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.748872][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.748872][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.748872][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.748872][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.748872][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8855.748872][ T254] [ 8855.751202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.751202][ T254] netdev_get_by_index+0x5e/0x80 [ 8855.751202][ T254] fib6_nh_init+0x3d8/0x1580 [ 8855.751202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8855.751202][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8855.751202][ T254] ipv6_add_addr+0x411/0x2000 [ 8855.751202][ T254] inet6_addr_add+0x30e/0xa40 [ 8855.751202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8855.751202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8855.751202][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.751202][ T254] netlink_unicast+0x449/0x710 [ 8855.751202][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.751202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.751202][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.751202][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.751202][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.751202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8855.751202][ T254] [ 8855.753517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.753517][ T254] netdev_get_by_index+0x5e/0x80 [ 8855.753517][ T254] fib6_nh_init+0x3d8/0x1580 [ 8855.753517][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8855.753517][ T254] ip6_route_add+0x1c/0x140 [ 8855.753517][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8855.753517][ T254] addrconf_add_dev+0xe2/0x170 [ 8855.753517][ T254] inet6_addr_add+0x12f/0xa40 [ 8855.753517][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8855.753517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8855.753517][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.753517][ T254] netlink_unicast+0x449/0x710 [ 8855.753517][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.753517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.753517][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.753517][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.753517][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.753517][ T254] [ 8855.755773][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.755773][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8855.755773][ T254] ipv6_find_idev+0x102/0x170 [ 8855.755773][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8855.755773][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8855.755773][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.755773][ T254] netlink_unicast+0x449/0x710 [ 8855.755773][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.755773][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.755773][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.755773][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.755773][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.755773][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8855.755773][ T254] [ 8855.757562][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8855.757562][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8855.757562][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8855.757562][ T254] ipv6_find_idev+0x102/0x170 [ 8855.757562][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8855.757562][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8855.757562][ T254] netlink_rcv_skb+0x130/0x360 [ 8855.757562][ T254] netlink_unicast+0x449/0x710 [ 8855.757562][ T254] netlink_sendmsg+0x723/0xbe0 [ 8855.757562][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8855.757562][ T254] ___sys_sendmsg+0xee/0x170 [ 8855.757562][ T254] __sys_sendmsg+0xcd/0x170 [ 8855.757562][ T254] do_syscall_64+0xc6/0x1e0 [ 8855.757562][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8855.757562][ T254] [ 8865.791857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8865.792403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.792403][ T254] dst_init+0x84/0x4a0 [ 8865.792403][ T254] dst_alloc+0x97/0x150 [ 8865.792403][ T254] ip6_dst_alloc+0x23/0x90 [ 8865.792403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8865.792403][ T254] ip6_pol_route+0x56f/0x840 [ 8865.792403][ T254] fib6_rule_lookup+0x334/0x630 [ 8865.792403][ T254] ip6_route_output_flags+0x259/0x480 [ 8865.792403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8865.792403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8865.792403][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.792403][ T254] netlink_unicast+0x449/0x710 [ 8865.792403][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.792403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.792403][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.792403][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.792403][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.792403][ T254] [ 8865.794664][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.794664][ T254] netdev_get_by_index+0x5e/0x80 [ 8865.794664][ T254] fib6_nh_init+0x3d8/0x1580 [ 8865.794664][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8865.794664][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8865.794664][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8865.794664][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8865.794664][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8865.794664][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8865.794664][ T254] addrconf_dad_begin+0x310/0x670 [ 8865.794664][ T254] addrconf_dad_work+0x10b/0xab0 [ 8865.794664][ T254] process_one_work+0x84d/0x18a0 [ 8865.794664][ T254] worker_thread+0x587/0xd30 [ 8865.794664][ T254] kthread+0x28a/0x350 [ 8865.794664][ T254] ret_from_fork+0x31/0x70 [ 8865.794664][ T254] ret_from_fork_asm+0x1a/0x30 [ 8865.794664][ T254] [ 8865.796878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.796878][ T254] netdev_get_by_index+0x5e/0x80 [ 8865.796878][ T254] fib6_nh_init+0x3d8/0x1580 [ 8865.796878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8865.796878][ T254] ip6_route_add+0x1c/0x140 [ 8865.796878][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8865.796878][ T254] inet6_addr_add+0x4f8/0xa40 [ 8865.796878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8865.796878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8865.796878][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.796878][ T254] netlink_unicast+0x449/0x710 [ 8865.796878][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.796878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.796878][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.796878][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.796878][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.796878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8865.796878][ T254] [ 8865.799168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.799168][ T254] netdev_get_by_index+0x5e/0x80 [ 8865.799168][ T254] fib6_nh_init+0x3d8/0x1580 [ 8865.799168][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8865.799168][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8865.799168][ T254] ipv6_add_addr+0x411/0x2000 [ 8865.799168][ T254] inet6_addr_add+0x30e/0xa40 [ 8865.799168][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8865.799168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8865.799168][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.799168][ T254] netlink_unicast+0x449/0x710 [ 8865.799168][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.799168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.799168][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.799168][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.799168][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.799168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8865.799168][ T254] [ 8865.801454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.801454][ T254] netdev_get_by_index+0x5e/0x80 [ 8865.801454][ T254] fib6_nh_init+0x3d8/0x1580 [ 8865.801454][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8865.801454][ T254] ip6_route_add+0x1c/0x140 [ 8865.801454][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8865.801454][ T254] addrconf_add_dev+0xe2/0x170 [ 8865.801454][ T254] inet6_addr_add+0x12f/0xa40 [ 8865.801454][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8865.801454][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8865.801454][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.801454][ T254] netlink_unicast+0x449/0x710 [ 8865.801454][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.801454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.801454][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.801454][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.801454][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.801454][ T254] [ 8865.803703][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.803703][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8865.803703][ T254] ipv6_find_idev+0x102/0x170 [ 8865.803703][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8865.803703][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8865.803703][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.803703][ T254] netlink_unicast+0x449/0x710 [ 8865.803703][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.803703][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.803703][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.803703][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.803703][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.803703][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8865.803703][ T254] [ 8865.805464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8865.805464][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8865.805464][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8865.805464][ T254] ipv6_find_idev+0x102/0x170 [ 8865.805464][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8865.805464][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8865.805464][ T254] netlink_rcv_skb+0x130/0x360 [ 8865.805464][ T254] netlink_unicast+0x449/0x710 [ 8865.805464][ T254] netlink_sendmsg+0x723/0xbe0 [ 8865.805464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8865.805464][ T254] ___sys_sendmsg+0xee/0x170 [ 8865.805464][ T254] __sys_sendmsg+0xcd/0x170 [ 8865.805464][ T254] do_syscall_64+0xc6/0x1e0 [ 8865.805464][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8865.805464][ T254] [ 8876.047876][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8876.048403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.048403][ T254] dst_init+0x84/0x4a0 [ 8876.048403][ T254] dst_alloc+0x97/0x150 [ 8876.048403][ T254] ip6_dst_alloc+0x23/0x90 [ 8876.048403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8876.048403][ T254] ip6_pol_route+0x56f/0x840 [ 8876.048403][ T254] fib6_rule_lookup+0x334/0x630 [ 8876.048403][ T254] ip6_route_output_flags+0x259/0x480 [ 8876.048403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8876.048403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8876.048403][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.048403][ T254] netlink_unicast+0x449/0x710 [ 8876.048403][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.048403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.048403][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.048403][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.048403][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.048403][ T254] [ 8876.050669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.050669][ T254] netdev_get_by_index+0x5e/0x80 [ 8876.050669][ T254] fib6_nh_init+0x3d8/0x1580 [ 8876.050669][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8876.050669][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8876.050669][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8876.050669][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8876.050669][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8876.050669][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8876.050669][ T254] addrconf_dad_begin+0x310/0x670 [ 8876.050669][ T254] addrconf_dad_work+0x10b/0xab0 [ 8876.050669][ T254] process_one_work+0x84d/0x18a0 [ 8876.050669][ T254] worker_thread+0x587/0xd30 [ 8876.050669][ T254] kthread+0x28a/0x350 [ 8876.050669][ T254] ret_from_fork+0x31/0x70 [ 8876.050669][ T254] ret_from_fork_asm+0x1a/0x30 [ 8876.050669][ T254] [ 8876.052873][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.052873][ T254] netdev_get_by_index+0x5e/0x80 [ 8876.052873][ T254] fib6_nh_init+0x3d8/0x1580 [ 8876.052873][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8876.052873][ T254] ip6_route_add+0x1c/0x140 [ 8876.052873][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8876.052873][ T254] inet6_addr_add+0x4f8/0xa40 [ 8876.052873][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8876.052873][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8876.052873][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.052873][ T254] netlink_unicast+0x449/0x710 [ 8876.052873][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.052873][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.052873][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.052873][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.052873][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.052873][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8876.052873][ T254] [ 8876.055164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.055164][ T254] netdev_get_by_index+0x5e/0x80 [ 8876.055164][ T254] fib6_nh_init+0x3d8/0x1580 [ 8876.055164][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8876.055164][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8876.055164][ T254] ipv6_add_addr+0x411/0x2000 [ 8876.055164][ T254] inet6_addr_add+0x30e/0xa40 [ 8876.055164][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8876.055164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8876.055164][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.055164][ T254] netlink_unicast+0x449/0x710 [ 8876.055164][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.055164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.055164][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.055164][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.055164][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.055164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8876.055164][ T254] [ 8876.057471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.057471][ T254] netdev_get_by_index+0x5e/0x80 [ 8876.057471][ T254] fib6_nh_init+0x3d8/0x1580 [ 8876.057471][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8876.057471][ T254] ip6_route_add+0x1c/0x140 [ 8876.057471][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8876.057471][ T254] addrconf_add_dev+0xe2/0x170 [ 8876.057471][ T254] inet6_addr_add+0x12f/0xa40 [ 8876.057471][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8876.057471][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8876.057471][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.057471][ T254] netlink_unicast+0x449/0x710 [ 8876.057471][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.057471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.057471][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.057471][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.057471][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.057471][ T254] [ 8876.059745][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.059745][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8876.059745][ T254] ipv6_find_idev+0x102/0x170 [ 8876.059745][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8876.059745][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8876.059745][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.059745][ T254] netlink_unicast+0x449/0x710 [ 8876.059745][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.059745][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.059745][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.059745][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.059745][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.059745][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8876.059745][ T254] [ 8876.061510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8876.061510][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8876.061510][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8876.061510][ T254] ipv6_find_idev+0x102/0x170 [ 8876.061510][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8876.061510][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8876.061510][ T254] netlink_rcv_skb+0x130/0x360 [ 8876.061510][ T254] netlink_unicast+0x449/0x710 [ 8876.061510][ T254] netlink_sendmsg+0x723/0xbe0 [ 8876.061510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8876.061510][ T254] ___sys_sendmsg+0xee/0x170 [ 8876.061510][ T254] __sys_sendmsg+0xcd/0x170 [ 8876.061510][ T254] do_syscall_64+0xc6/0x1e0 [ 8876.061510][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8876.061510][ T254] [ 8886.303858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8886.304401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.304401][ T254] dst_init+0x84/0x4a0 [ 8886.304401][ T254] dst_alloc+0x97/0x150 [ 8886.304401][ T254] ip6_dst_alloc+0x23/0x90 [ 8886.304401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8886.304401][ T254] ip6_pol_route+0x56f/0x840 [ 8886.304401][ T254] fib6_rule_lookup+0x334/0x630 [ 8886.304401][ T254] ip6_route_output_flags+0x259/0x480 [ 8886.304401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8886.304401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8886.304401][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.304401][ T254] netlink_unicast+0x449/0x710 [ 8886.304401][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.304401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.304401][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.304401][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.304401][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.304401][ T254] [ 8886.306678][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.306678][ T254] netdev_get_by_index+0x5e/0x80 [ 8886.306678][ T254] fib6_nh_init+0x3d8/0x1580 [ 8886.306678][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8886.306678][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8886.306678][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8886.306678][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8886.306678][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8886.306678][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8886.306678][ T254] addrconf_dad_begin+0x310/0x670 [ 8886.306678][ T254] addrconf_dad_work+0x10b/0xab0 [ 8886.306678][ T254] process_one_work+0x84d/0x18a0 [ 8886.306678][ T254] worker_thread+0x587/0xd30 [ 8886.306678][ T254] kthread+0x28a/0x350 [ 8886.306678][ T254] ret_from_fork+0x31/0x70 [ 8886.306678][ T254] ret_from_fork_asm+0x1a/0x30 [ 8886.306678][ T254] [ 8886.308902][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.308902][ T254] netdev_get_by_index+0x5e/0x80 [ 8886.308902][ T254] fib6_nh_init+0x3d8/0x1580 [ 8886.308902][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8886.308902][ T254] ip6_route_add+0x1c/0x140 [ 8886.308902][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8886.308902][ T254] inet6_addr_add+0x4f8/0xa40 [ 8886.308902][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8886.308902][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8886.308902][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.308902][ T254] netlink_unicast+0x449/0x710 [ 8886.308902][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.308902][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.308902][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.308902][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.308902][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.308902][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8886.308902][ T254] [ 8886.311202][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.311202][ T254] netdev_get_by_index+0x5e/0x80 [ 8886.311202][ T254] fib6_nh_init+0x3d8/0x1580 [ 8886.311202][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8886.311202][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8886.311202][ T254] ipv6_add_addr+0x411/0x2000 [ 8886.311202][ T254] inet6_addr_add+0x30e/0xa40 [ 8886.311202][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8886.311202][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8886.311202][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.311202][ T254] netlink_unicast+0x449/0x710 [ 8886.311202][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.311202][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.311202][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.311202][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.311202][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.311202][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8886.311202][ T254] [ 8886.313495][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.313495][ T254] netdev_get_by_index+0x5e/0x80 [ 8886.313495][ T254] fib6_nh_init+0x3d8/0x1580 [ 8886.313495][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8886.313495][ T254] ip6_route_add+0x1c/0x140 [ 8886.313495][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8886.313495][ T254] addrconf_add_dev+0xe2/0x170 [ 8886.313495][ T254] inet6_addr_add+0x12f/0xa40 [ 8886.313495][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8886.313495][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8886.313495][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.313495][ T254] netlink_unicast+0x449/0x710 [ 8886.313495][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.313495][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.313495][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.313495][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.313495][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.313495][ T254] [ 8886.315749][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.315749][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8886.315749][ T254] ipv6_find_idev+0x102/0x170 [ 8886.315749][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8886.315749][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8886.315749][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.315749][ T254] netlink_unicast+0x449/0x710 [ 8886.315749][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.315749][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.315749][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.315749][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.315749][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.315749][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8886.315749][ T254] [ 8886.317523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8886.317523][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8886.317523][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8886.317523][ T254] ipv6_find_idev+0x102/0x170 [ 8886.317523][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8886.317523][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8886.317523][ T254] netlink_rcv_skb+0x130/0x360 [ 8886.317523][ T254] netlink_unicast+0x449/0x710 [ 8886.317523][ T254] netlink_sendmsg+0x723/0xbe0 [ 8886.317523][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8886.317523][ T254] ___sys_sendmsg+0xee/0x170 [ 8886.317523][ T254] __sys_sendmsg+0xcd/0x170 [ 8886.317523][ T254] do_syscall_64+0xc6/0x1e0 [ 8886.317523][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8886.317523][ T254] [ 8896.559849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8896.560390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.560390][ T254] dst_init+0x84/0x4a0 [ 8896.560390][ T254] dst_alloc+0x97/0x150 [ 8896.560390][ T254] ip6_dst_alloc+0x23/0x90 [ 8896.560390][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8896.560390][ T254] ip6_pol_route+0x56f/0x840 [ 8896.560390][ T254] fib6_rule_lookup+0x334/0x630 [ 8896.560390][ T254] ip6_route_output_flags+0x259/0x480 [ 8896.560390][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8896.560390][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8896.560390][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.560390][ T254] netlink_unicast+0x449/0x710 [ 8896.560390][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.560390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.560390][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.560390][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.560390][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.560390][ T254] [ 8896.562658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.562658][ T254] netdev_get_by_index+0x5e/0x80 [ 8896.562658][ T254] fib6_nh_init+0x3d8/0x1580 [ 8896.562658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8896.562658][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8896.562658][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8896.562658][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8896.562658][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8896.562658][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8896.562658][ T254] addrconf_dad_begin+0x310/0x670 [ 8896.562658][ T254] addrconf_dad_work+0x10b/0xab0 [ 8896.562658][ T254] process_one_work+0x84d/0x18a0 [ 8896.562658][ T254] worker_thread+0x587/0xd30 [ 8896.562658][ T254] kthread+0x28a/0x350 [ 8896.562658][ T254] ret_from_fork+0x31/0x70 [ 8896.562658][ T254] ret_from_fork_asm+0x1a/0x30 [ 8896.562658][ T254] [ 8896.564858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.564858][ T254] netdev_get_by_index+0x5e/0x80 [ 8896.564858][ T254] fib6_nh_init+0x3d8/0x1580 [ 8896.564858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8896.564858][ T254] ip6_route_add+0x1c/0x140 [ 8896.564858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8896.564858][ T254] inet6_addr_add+0x4f8/0xa40 [ 8896.564858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8896.564858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8896.564858][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.564858][ T254] netlink_unicast+0x449/0x710 [ 8896.564858][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.564858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.564858][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.564858][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.564858][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.564858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8896.564858][ T254] [ 8896.567193][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.567193][ T254] netdev_get_by_index+0x5e/0x80 [ 8896.567193][ T254] fib6_nh_init+0x3d8/0x1580 [ 8896.567193][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8896.567193][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8896.567193][ T254] ipv6_add_addr+0x411/0x2000 [ 8896.567193][ T254] inet6_addr_add+0x30e/0xa40 [ 8896.567193][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8896.567193][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8896.567193][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.567193][ T254] netlink_unicast+0x449/0x710 [ 8896.567193][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.567193][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.567193][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.567193][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.567193][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.567193][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8896.567193][ T254] [ 8896.569507][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.569507][ T254] netdev_get_by_index+0x5e/0x80 [ 8896.569507][ T254] fib6_nh_init+0x3d8/0x1580 [ 8896.569507][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8896.569507][ T254] ip6_route_add+0x1c/0x140 [ 8896.569507][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8896.569507][ T254] addrconf_add_dev+0xe2/0x170 [ 8896.569507][ T254] inet6_addr_add+0x12f/0xa40 [ 8896.569507][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8896.569507][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8896.569507][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.569507][ T254] netlink_unicast+0x449/0x710 [ 8896.569507][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.569507][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.569507][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.569507][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.569507][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.569507][ T254] [ 8896.571778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.571778][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8896.571778][ T254] ipv6_find_idev+0x102/0x170 [ 8896.571778][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8896.571778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8896.571778][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.571778][ T254] netlink_unicast+0x449/0x710 [ 8896.571778][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.571778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.571778][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.571778][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.571778][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.571778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8896.571778][ T254] [ 8896.573546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8896.573546][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8896.573546][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8896.573546][ T254] ipv6_find_idev+0x102/0x170 [ 8896.573546][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8896.573546][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8896.573546][ T254] netlink_rcv_skb+0x130/0x360 [ 8896.573546][ T254] netlink_unicast+0x449/0x710 [ 8896.573546][ T254] netlink_sendmsg+0x723/0xbe0 [ 8896.573546][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8896.573546][ T254] ___sys_sendmsg+0xee/0x170 [ 8896.573546][ T254] __sys_sendmsg+0xcd/0x170 [ 8896.573546][ T254] do_syscall_64+0xc6/0x1e0 [ 8896.573546][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8896.573546][ T254] [ 8906.815894][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8906.816467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.816467][ T254] dst_init+0x84/0x4a0 [ 8906.816467][ T254] dst_alloc+0x97/0x150 [ 8906.816467][ T254] ip6_dst_alloc+0x23/0x90 [ 8906.816467][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8906.816467][ T254] ip6_pol_route+0x56f/0x840 [ 8906.816467][ T254] fib6_rule_lookup+0x334/0x630 [ 8906.816467][ T254] ip6_route_output_flags+0x259/0x480 [ 8906.816467][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8906.816467][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8906.816467][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.816467][ T254] netlink_unicast+0x449/0x710 [ 8906.816467][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.816467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.816467][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.816467][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.816467][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.816467][ T254] [ 8906.818740][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.818740][ T254] netdev_get_by_index+0x5e/0x80 [ 8906.818740][ T254] fib6_nh_init+0x3d8/0x1580 [ 8906.818740][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8906.818740][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8906.818740][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8906.818740][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8906.818740][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8906.818740][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8906.818740][ T254] addrconf_dad_begin+0x310/0x670 [ 8906.818740][ T254] addrconf_dad_work+0x10b/0xab0 [ 8906.818740][ T254] process_one_work+0x84d/0x18a0 [ 8906.818740][ T254] worker_thread+0x587/0xd30 [ 8906.818740][ T254] kthread+0x28a/0x350 [ 8906.818740][ T254] ret_from_fork+0x31/0x70 [ 8906.818740][ T254] ret_from_fork_asm+0x1a/0x30 [ 8906.818740][ T254] [ 8906.820944][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.820944][ T254] netdev_get_by_index+0x5e/0x80 [ 8906.820944][ T254] fib6_nh_init+0x3d8/0x1580 [ 8906.820944][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8906.820944][ T254] ip6_route_add+0x1c/0x140 [ 8906.820944][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8906.820944][ T254] inet6_addr_add+0x4f8/0xa40 [ 8906.820944][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8906.820944][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8906.820944][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.820944][ T254] netlink_unicast+0x449/0x710 [ 8906.820944][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.820944][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.820944][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.820944][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.820944][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.820944][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8906.820944][ T254] [ 8906.823243][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.823243][ T254] netdev_get_by_index+0x5e/0x80 [ 8906.823243][ T254] fib6_nh_init+0x3d8/0x1580 [ 8906.823243][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8906.823243][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8906.823243][ T254] ipv6_add_addr+0x411/0x2000 [ 8906.823243][ T254] inet6_addr_add+0x30e/0xa40 [ 8906.823243][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8906.823243][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8906.823243][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.823243][ T254] netlink_unicast+0x449/0x710 [ 8906.823243][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.823243][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.823243][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.823243][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.823243][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.823243][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8906.823243][ T254] [ 8906.825553][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.825553][ T254] netdev_get_by_index+0x5e/0x80 [ 8906.825553][ T254] fib6_nh_init+0x3d8/0x1580 [ 8906.825553][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8906.825553][ T254] ip6_route_add+0x1c/0x140 [ 8906.825553][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8906.825553][ T254] addrconf_add_dev+0xe2/0x170 [ 8906.825553][ T254] inet6_addr_add+0x12f/0xa40 [ 8906.825553][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8906.825553][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8906.825553][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.825553][ T254] netlink_unicast+0x449/0x710 [ 8906.825553][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.825553][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.825553][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.825553][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.825553][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.825553][ T254] [ 8906.827813][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.827813][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8906.827813][ T254] ipv6_find_idev+0x102/0x170 [ 8906.827813][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8906.827813][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8906.827813][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.827813][ T254] netlink_unicast+0x449/0x710 [ 8906.827813][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.827813][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.827813][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.827813][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.827813][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.827813][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8906.827813][ T254] [ 8906.829580][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8906.829580][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8906.829580][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8906.829580][ T254] ipv6_find_idev+0x102/0x170 [ 8906.829580][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8906.829580][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8906.829580][ T254] netlink_rcv_skb+0x130/0x360 [ 8906.829580][ T254] netlink_unicast+0x449/0x710 [ 8906.829580][ T254] netlink_sendmsg+0x723/0xbe0 [ 8906.829580][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8906.829580][ T254] ___sys_sendmsg+0xee/0x170 [ 8906.829580][ T254] __sys_sendmsg+0xcd/0x170 [ 8906.829580][ T254] do_syscall_64+0xc6/0x1e0 [ 8906.829580][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8906.829580][ T254] [ 8917.071784][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8917.072310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.072310][ T254] dst_init+0x84/0x4a0 [ 8917.072310][ T254] dst_alloc+0x97/0x150 [ 8917.072310][ T254] ip6_dst_alloc+0x23/0x90 [ 8917.072310][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8917.072310][ T254] ip6_pol_route+0x56f/0x840 [ 8917.072310][ T254] fib6_rule_lookup+0x334/0x630 [ 8917.072310][ T254] ip6_route_output_flags+0x259/0x480 [ 8917.072310][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8917.072310][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8917.072310][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.072310][ T254] netlink_unicast+0x449/0x710 [ 8917.072310][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.072310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.072310][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.072310][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.072310][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.072310][ T254] [ 8917.074613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.074613][ T254] netdev_get_by_index+0x5e/0x80 [ 8917.074613][ T254] fib6_nh_init+0x3d8/0x1580 [ 8917.074613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8917.074613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8917.074613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8917.074613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8917.074613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8917.074613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8917.074613][ T254] addrconf_dad_begin+0x310/0x670 [ 8917.074613][ T254] addrconf_dad_work+0x10b/0xab0 [ 8917.074613][ T254] process_one_work+0x84d/0x18a0 [ 8917.074613][ T254] worker_thread+0x587/0xd30 [ 8917.074613][ T254] kthread+0x28a/0x350 [ 8917.074613][ T254] ret_from_fork+0x31/0x70 [ 8917.074613][ T254] ret_from_fork_asm+0x1a/0x30 [ 8917.074613][ T254] [ 8917.076820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.076820][ T254] netdev_get_by_index+0x5e/0x80 [ 8917.076820][ T254] fib6_nh_init+0x3d8/0x1580 [ 8917.076820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8917.076820][ T254] ip6_route_add+0x1c/0x140 [ 8917.076820][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8917.076820][ T254] inet6_addr_add+0x4f8/0xa40 [ 8917.076820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8917.076820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8917.076820][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.076820][ T254] netlink_unicast+0x449/0x710 [ 8917.076820][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.076820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.076820][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.076820][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.076820][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.076820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8917.076820][ T254] [ 8917.079128][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.079128][ T254] netdev_get_by_index+0x5e/0x80 [ 8917.079128][ T254] fib6_nh_init+0x3d8/0x1580 [ 8917.079128][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8917.079128][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8917.079128][ T254] ipv6_add_addr+0x411/0x2000 [ 8917.079128][ T254] inet6_addr_add+0x30e/0xa40 [ 8917.079128][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8917.079128][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8917.079128][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.079128][ T254] netlink_unicast+0x449/0x710 [ 8917.079128][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.079128][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.079128][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.079128][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.079128][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.079128][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8917.079128][ T254] [ 8917.081417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.081417][ T254] netdev_get_by_index+0x5e/0x80 [ 8917.081417][ T254] fib6_nh_init+0x3d8/0x1580 [ 8917.081417][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8917.081417][ T254] ip6_route_add+0x1c/0x140 [ 8917.081417][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8917.081417][ T254] addrconf_add_dev+0xe2/0x170 [ 8917.081417][ T254] inet6_addr_add+0x12f/0xa40 [ 8917.081417][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8917.081417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8917.081417][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.081417][ T254] netlink_unicast+0x449/0x710 [ 8917.081417][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.081417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.081417][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.081417][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.081417][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.081417][ T254] [ 8917.083667][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.083667][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8917.083667][ T254] ipv6_find_idev+0x102/0x170 [ 8917.083667][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8917.083667][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8917.083667][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.083667][ T254] netlink_unicast+0x449/0x710 [ 8917.083667][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.083667][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.083667][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.083667][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.083667][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.083667][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8917.083667][ T254] [ 8917.085428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8917.085428][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8917.085428][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8917.085428][ T254] ipv6_find_idev+0x102/0x170 [ 8917.085428][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8917.085428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8917.085428][ T254] netlink_rcv_skb+0x130/0x360 [ 8917.085428][ T254] netlink_unicast+0x449/0x710 [ 8917.085428][ T254] netlink_sendmsg+0x723/0xbe0 [ 8917.085428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8917.085428][ T254] ___sys_sendmsg+0xee/0x170 [ 8917.085428][ T254] __sys_sendmsg+0xcd/0x170 [ 8917.085428][ T254] do_syscall_64+0xc6/0x1e0 [ 8917.085428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8917.085428][ T254] [ 8927.167810][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8927.168275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.168275][ T254] dst_init+0x84/0x4a0 [ 8927.168275][ T254] dst_alloc+0x97/0x150 [ 8927.168275][ T254] ip6_dst_alloc+0x23/0x90 [ 8927.168275][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8927.168275][ T254] ip6_pol_route+0x56f/0x840 [ 8927.168275][ T254] fib6_rule_lookup+0x334/0x630 [ 8927.168275][ T254] ip6_route_output_flags+0x259/0x480 [ 8927.168275][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8927.168275][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8927.168275][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.168275][ T254] netlink_unicast+0x449/0x710 [ 8927.168275][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.168275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.168275][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.168275][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.168275][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.168275][ T254] [ 8927.170546][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.170546][ T254] netdev_get_by_index+0x5e/0x80 [ 8927.170546][ T254] fib6_nh_init+0x3d8/0x1580 [ 8927.170546][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8927.170546][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8927.170546][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8927.170546][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8927.170546][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8927.170546][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8927.170546][ T254] addrconf_dad_begin+0x310/0x670 [ 8927.170546][ T254] addrconf_dad_work+0x10b/0xab0 [ 8927.170546][ T254] process_one_work+0x84d/0x18a0 [ 8927.170546][ T254] worker_thread+0x587/0xd30 [ 8927.170546][ T254] kthread+0x28a/0x350 [ 8927.170546][ T254] ret_from_fork+0x31/0x70 [ 8927.170546][ T254] ret_from_fork_asm+0x1a/0x30 [ 8927.170546][ T254] [ 8927.172736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.172736][ T254] netdev_get_by_index+0x5e/0x80 [ 8927.172736][ T254] fib6_nh_init+0x3d8/0x1580 [ 8927.172736][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8927.172736][ T254] ip6_route_add+0x1c/0x140 [ 8927.172736][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8927.172736][ T254] inet6_addr_add+0x4f8/0xa40 [ 8927.172736][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8927.172736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8927.172736][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.172736][ T254] netlink_unicast+0x449/0x710 [ 8927.172736][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.172736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.172736][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.172736][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.172736][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.172736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8927.172736][ T254] [ 8927.175040][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.175040][ T254] netdev_get_by_index+0x5e/0x80 [ 8927.175040][ T254] fib6_nh_init+0x3d8/0x1580 [ 8927.175040][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8927.175040][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8927.175040][ T254] ipv6_add_addr+0x411/0x2000 [ 8927.175040][ T254] inet6_addr_add+0x30e/0xa40 [ 8927.175040][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8927.175040][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8927.175040][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.175040][ T254] netlink_unicast+0x449/0x710 [ 8927.175040][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.175040][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.175040][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.175040][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.175040][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.175040][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8927.175040][ T254] [ 8927.177350][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.177350][ T254] netdev_get_by_index+0x5e/0x80 [ 8927.177350][ T254] fib6_nh_init+0x3d8/0x1580 [ 8927.177350][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8927.177350][ T254] ip6_route_add+0x1c/0x140 [ 8927.177350][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8927.177350][ T254] addrconf_add_dev+0xe2/0x170 [ 8927.177350][ T254] inet6_addr_add+0x12f/0xa40 [ 8927.177350][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8927.177350][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8927.177350][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.177350][ T254] netlink_unicast+0x449/0x710 [ 8927.177350][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.177350][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.177350][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.177350][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.177350][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.177350][ T254] [ 8927.179625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.179625][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8927.179625][ T254] ipv6_find_idev+0x102/0x170 [ 8927.179625][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8927.179625][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8927.179625][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.179625][ T254] netlink_unicast+0x449/0x710 [ 8927.179625][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.179625][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.179625][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.179625][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.179625][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.179625][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8927.179625][ T254] [ 8927.181397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8927.181397][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8927.181397][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8927.181397][ T254] ipv6_find_idev+0x102/0x170 [ 8927.181397][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8927.181397][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8927.181397][ T254] netlink_rcv_skb+0x130/0x360 [ 8927.181397][ T254] netlink_unicast+0x449/0x710 [ 8927.181397][ T254] netlink_sendmsg+0x723/0xbe0 [ 8927.181397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8927.181397][ T254] ___sys_sendmsg+0xee/0x170 [ 8927.181397][ T254] __sys_sendmsg+0xcd/0x170 [ 8927.181397][ T254] do_syscall_64+0xc6/0x1e0 [ 8927.181397][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8927.181397][ T254] [ 8937.431862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8937.432404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.432404][ T254] dst_init+0x84/0x4a0 [ 8937.432404][ T254] dst_alloc+0x97/0x150 [ 8937.432404][ T254] ip6_dst_alloc+0x23/0x90 [ 8937.432404][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8937.432404][ T254] ip6_pol_route+0x56f/0x840 [ 8937.432404][ T254] fib6_rule_lookup+0x334/0x630 [ 8937.432404][ T254] ip6_route_output_flags+0x259/0x480 [ 8937.432404][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8937.432404][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8937.432404][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.432404][ T254] netlink_unicast+0x449/0x710 [ 8937.432404][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.432404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.432404][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.432404][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.432404][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.432404][ T254] [ 8937.434709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.434709][ T254] netdev_get_by_index+0x5e/0x80 [ 8937.434709][ T254] fib6_nh_init+0x3d8/0x1580 [ 8937.434709][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8937.434709][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8937.434709][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8937.434709][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8937.434709][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8937.434709][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8937.434709][ T254] addrconf_dad_begin+0x310/0x670 [ 8937.434709][ T254] addrconf_dad_work+0x10b/0xab0 [ 8937.434709][ T254] process_one_work+0x84d/0x18a0 [ 8937.434709][ T254] worker_thread+0x587/0xd30 [ 8937.434709][ T254] kthread+0x28a/0x350 [ 8937.434709][ T254] ret_from_fork+0x31/0x70 [ 8937.434709][ T254] ret_from_fork_asm+0x1a/0x30 [ 8937.434709][ T254] [ 8937.436953][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.436953][ T254] netdev_get_by_index+0x5e/0x80 [ 8937.436953][ T254] fib6_nh_init+0x3d8/0x1580 [ 8937.436953][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8937.436953][ T254] ip6_route_add+0x1c/0x140 [ 8937.436953][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8937.436953][ T254] inet6_addr_add+0x4f8/0xa40 [ 8937.436953][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8937.436953][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8937.436953][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.436953][ T254] netlink_unicast+0x449/0x710 [ 8937.436953][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.436953][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.436953][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.436953][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.436953][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.436953][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8937.436953][ T254] [ 8937.439285][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.439285][ T254] netdev_get_by_index+0x5e/0x80 [ 8937.439285][ T254] fib6_nh_init+0x3d8/0x1580 [ 8937.439285][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8937.439285][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8937.439285][ T254] ipv6_add_addr+0x411/0x2000 [ 8937.439285][ T254] inet6_addr_add+0x30e/0xa40 [ 8937.439285][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8937.439285][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8937.439285][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.439285][ T254] netlink_unicast+0x449/0x710 [ 8937.439285][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.439285][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.439285][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.439285][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.439285][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.439285][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8937.439285][ T254] [ 8937.441633][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.441633][ T254] netdev_get_by_index+0x5e/0x80 [ 8937.441633][ T254] fib6_nh_init+0x3d8/0x1580 [ 8937.441633][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8937.441633][ T254] ip6_route_add+0x1c/0x140 [ 8937.441633][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8937.441633][ T254] addrconf_add_dev+0xe2/0x170 [ 8937.441633][ T254] inet6_addr_add+0x12f/0xa40 [ 8937.441633][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8937.441633][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8937.441633][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.441633][ T254] netlink_unicast+0x449/0x710 [ 8937.441633][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.441633][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.441633][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.441633][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.441633][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.441633][ T254] [ 8937.443929][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.443929][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8937.443929][ T254] ipv6_find_idev+0x102/0x170 [ 8937.443929][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8937.443929][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8937.443929][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.443929][ T254] netlink_unicast+0x449/0x710 [ 8937.443929][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.443929][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.443929][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.443929][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.443929][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.443929][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8937.443929][ T254] [ 8937.445721][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8937.445721][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8937.445721][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8937.445721][ T254] ipv6_find_idev+0x102/0x170 [ 8937.445721][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8937.445721][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8937.445721][ T254] netlink_rcv_skb+0x130/0x360 [ 8937.445721][ T254] netlink_unicast+0x449/0x710 [ 8937.445721][ T254] netlink_sendmsg+0x723/0xbe0 [ 8937.445721][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8937.445721][ T254] ___sys_sendmsg+0xee/0x170 [ 8937.445721][ T254] __sys_sendmsg+0xcd/0x170 [ 8937.445721][ T254] do_syscall_64+0xc6/0x1e0 [ 8937.445721][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8937.445721][ T254] [ 8947.695770][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8947.696349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.696349][ T254] dst_init+0x84/0x4a0 [ 8947.696349][ T254] dst_alloc+0x97/0x150 [ 8947.696349][ T254] ip6_dst_alloc+0x23/0x90 [ 8947.696349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8947.696349][ T254] ip6_pol_route+0x56f/0x840 [ 8947.696349][ T254] fib6_rule_lookup+0x334/0x630 [ 8947.696349][ T254] ip6_route_output_flags+0x259/0x480 [ 8947.696349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8947.696349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8947.696349][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.696349][ T254] netlink_unicast+0x449/0x710 [ 8947.696349][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.696349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.696349][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.696349][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.696349][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.696349][ T254] [ 8947.698693][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.698693][ T254] netdev_get_by_index+0x5e/0x80 [ 8947.698693][ T254] fib6_nh_init+0x3d8/0x1580 [ 8947.698693][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8947.698693][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8947.698693][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8947.698693][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8947.698693][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8947.698693][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8947.698693][ T254] addrconf_dad_begin+0x310/0x670 [ 8947.698693][ T254] addrconf_dad_work+0x10b/0xab0 [ 8947.698693][ T254] process_one_work+0x84d/0x18a0 [ 8947.698693][ T254] worker_thread+0x587/0xd30 [ 8947.698693][ T254] kthread+0x28a/0x350 [ 8947.698693][ T254] ret_from_fork+0x31/0x70 [ 8947.698693][ T254] ret_from_fork_asm+0x1a/0x30 [ 8947.698693][ T254] [ 8947.700837][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.700837][ T254] netdev_get_by_index+0x5e/0x80 [ 8947.700837][ T254] fib6_nh_init+0x3d8/0x1580 [ 8947.700837][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8947.700837][ T254] ip6_route_add+0x1c/0x140 [ 8947.700837][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8947.700837][ T254] inet6_addr_add+0x4f8/0xa40 [ 8947.700837][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8947.700837][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8947.700837][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.700837][ T254] netlink_unicast+0x449/0x710 [ 8947.700837][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.700837][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.700837][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.700837][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.700837][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.700837][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8947.700837][ T254] [ 8947.703097][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.703097][ T254] netdev_get_by_index+0x5e/0x80 [ 8947.703097][ T254] fib6_nh_init+0x3d8/0x1580 [ 8947.703097][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8947.703097][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8947.703097][ T254] ipv6_add_addr+0x411/0x2000 [ 8947.703097][ T254] inet6_addr_add+0x30e/0xa40 [ 8947.703097][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8947.703097][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8947.703097][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.703097][ T254] netlink_unicast+0x449/0x710 [ 8947.703097][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.703097][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.703097][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.703097][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.703097][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.703097][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8947.703097][ T254] [ 8947.705384][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.705384][ T254] netdev_get_by_index+0x5e/0x80 [ 8947.705384][ T254] fib6_nh_init+0x3d8/0x1580 [ 8947.705384][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8947.705384][ T254] ip6_route_add+0x1c/0x140 [ 8947.705384][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8947.705384][ T254] addrconf_add_dev+0xe2/0x170 [ 8947.705384][ T254] inet6_addr_add+0x12f/0xa40 [ 8947.705384][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8947.705384][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8947.705384][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.705384][ T254] netlink_unicast+0x449/0x710 [ 8947.705384][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.705384][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.705384][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.705384][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.705384][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.705384][ T254] [ 8947.707650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.707650][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8947.707650][ T254] ipv6_find_idev+0x102/0x170 [ 8947.707650][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8947.707650][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8947.707650][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.707650][ T254] netlink_unicast+0x449/0x710 [ 8947.707650][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.707650][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.707650][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.707650][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.707650][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.707650][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8947.707650][ T254] [ 8947.709404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8947.709404][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8947.709404][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8947.709404][ T254] ipv6_find_idev+0x102/0x170 [ 8947.709404][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8947.709404][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8947.709404][ T254] netlink_rcv_skb+0x130/0x360 [ 8947.709404][ T254] netlink_unicast+0x449/0x710 [ 8947.709404][ T254] netlink_sendmsg+0x723/0xbe0 [ 8947.709404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8947.709404][ T254] ___sys_sendmsg+0xee/0x170 [ 8947.709404][ T254] __sys_sendmsg+0xcd/0x170 [ 8947.709404][ T254] do_syscall_64+0xc6/0x1e0 [ 8947.709404][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8947.709404][ T254] [ 8957.959862][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8957.960401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.960401][ T254] dst_init+0x84/0x4a0 [ 8957.960401][ T254] dst_alloc+0x97/0x150 [ 8957.960401][ T254] ip6_dst_alloc+0x23/0x90 [ 8957.960401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8957.960401][ T254] ip6_pol_route+0x56f/0x840 [ 8957.960401][ T254] fib6_rule_lookup+0x334/0x630 [ 8957.960401][ T254] ip6_route_output_flags+0x259/0x480 [ 8957.960401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8957.960401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8957.960401][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.960401][ T254] netlink_unicast+0x449/0x710 [ 8957.960401][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.960401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.960401][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.960401][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.960401][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.960401][ T254] [ 8957.962698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.962698][ T254] netdev_get_by_index+0x5e/0x80 [ 8957.962698][ T254] fib6_nh_init+0x3d8/0x1580 [ 8957.962698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8957.962698][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8957.962698][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8957.962698][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8957.962698][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8957.962698][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8957.962698][ T254] addrconf_dad_begin+0x310/0x670 [ 8957.962698][ T254] addrconf_dad_work+0x10b/0xab0 [ 8957.962698][ T254] process_one_work+0x84d/0x18a0 [ 8957.962698][ T254] worker_thread+0x587/0xd30 [ 8957.962698][ T254] kthread+0x28a/0x350 [ 8957.962698][ T254] ret_from_fork+0x31/0x70 [ 8957.962698][ T254] ret_from_fork_asm+0x1a/0x30 [ 8957.962698][ T254] [ 8957.964926][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.964926][ T254] netdev_get_by_index+0x5e/0x80 [ 8957.964926][ T254] fib6_nh_init+0x3d8/0x1580 [ 8957.964926][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8957.964926][ T254] ip6_route_add+0x1c/0x140 [ 8957.964926][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8957.964926][ T254] inet6_addr_add+0x4f8/0xa40 [ 8957.964926][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8957.964926][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8957.964926][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.964926][ T254] netlink_unicast+0x449/0x710 [ 8957.964926][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.964926][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.964926][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.964926][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.964926][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.964926][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8957.964926][ T254] [ 8957.967272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.967272][ T254] netdev_get_by_index+0x5e/0x80 [ 8957.967272][ T254] fib6_nh_init+0x3d8/0x1580 [ 8957.967272][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8957.967272][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8957.967272][ T254] ipv6_add_addr+0x411/0x2000 [ 8957.967272][ T254] inet6_addr_add+0x30e/0xa40 [ 8957.967272][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8957.967272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8957.967272][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.967272][ T254] netlink_unicast+0x449/0x710 [ 8957.967272][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.967272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.967272][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.967272][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.967272][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.967272][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8957.967272][ T254] [ 8957.969593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.969593][ T254] netdev_get_by_index+0x5e/0x80 [ 8957.969593][ T254] fib6_nh_init+0x3d8/0x1580 [ 8957.969593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8957.969593][ T254] ip6_route_add+0x1c/0x140 [ 8957.969593][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8957.969593][ T254] addrconf_add_dev+0xe2/0x170 [ 8957.969593][ T254] inet6_addr_add+0x12f/0xa40 [ 8957.969593][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8957.969593][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8957.969593][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.969593][ T254] netlink_unicast+0x449/0x710 [ 8957.969593][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.969593][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.969593][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.969593][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.969593][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.969593][ T254] [ 8957.971885][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.971885][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8957.971885][ T254] ipv6_find_idev+0x102/0x170 [ 8957.971885][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8957.971885][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8957.971885][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.971885][ T254] netlink_unicast+0x449/0x710 [ 8957.971885][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.971885][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.971885][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.971885][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.971885][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.971885][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8957.971885][ T254] [ 8957.973692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8957.973692][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8957.973692][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8957.973692][ T254] ipv6_find_idev+0x102/0x170 [ 8957.973692][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8957.973692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8957.973692][ T254] netlink_rcv_skb+0x130/0x360 [ 8957.973692][ T254] netlink_unicast+0x449/0x710 [ 8957.973692][ T254] netlink_sendmsg+0x723/0xbe0 [ 8957.973692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8957.973692][ T254] ___sys_sendmsg+0xee/0x170 [ 8957.973692][ T254] __sys_sendmsg+0xcd/0x170 [ 8957.973692][ T254] do_syscall_64+0xc6/0x1e0 [ 8957.973692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8957.973692][ T254] [ 8968.223966][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8968.224499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.224499][ T254] dst_init+0x84/0x4a0 [ 8968.224499][ T254] dst_alloc+0x97/0x150 [ 8968.224499][ T254] ip6_dst_alloc+0x23/0x90 [ 8968.224499][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8968.224499][ T254] ip6_pol_route+0x56f/0x840 [ 8968.224499][ T254] fib6_rule_lookup+0x334/0x630 [ 8968.224499][ T254] ip6_route_output_flags+0x259/0x480 [ 8968.224499][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8968.224499][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8968.224499][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.224499][ T254] netlink_unicast+0x449/0x710 [ 8968.224499][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.224499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.224499][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.224499][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.224499][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.224499][ T254] [ 8968.226861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.226861][ T254] netdev_get_by_index+0x5e/0x80 [ 8968.226861][ T254] fib6_nh_init+0x3d8/0x1580 [ 8968.226861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8968.226861][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8968.226861][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8968.226861][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8968.226861][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8968.226861][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8968.226861][ T254] addrconf_dad_begin+0x310/0x670 [ 8968.226861][ T254] addrconf_dad_work+0x10b/0xab0 [ 8968.226861][ T254] process_one_work+0x84d/0x18a0 [ 8968.226861][ T254] worker_thread+0x587/0xd30 [ 8968.226861][ T254] kthread+0x28a/0x350 [ 8968.226861][ T254] ret_from_fork+0x31/0x70 [ 8968.226861][ T254] ret_from_fork_asm+0x1a/0x30 [ 8968.226861][ T254] [ 8968.229024][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.229024][ T254] netdev_get_by_index+0x5e/0x80 [ 8968.229024][ T254] fib6_nh_init+0x3d8/0x1580 [ 8968.229024][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8968.229024][ T254] ip6_route_add+0x1c/0x140 [ 8968.229024][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8968.229024][ T254] inet6_addr_add+0x4f8/0xa40 [ 8968.229024][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8968.229024][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8968.229024][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.229024][ T254] netlink_unicast+0x449/0x710 [ 8968.229024][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.229024][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.229024][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.229024][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.229024][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.229024][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8968.229024][ T254] [ 8968.231275][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.231275][ T254] netdev_get_by_index+0x5e/0x80 [ 8968.231275][ T254] fib6_nh_init+0x3d8/0x1580 [ 8968.231275][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8968.231275][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8968.231275][ T254] ipv6_add_addr+0x411/0x2000 [ 8968.231275][ T254] inet6_addr_add+0x30e/0xa40 [ 8968.231275][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8968.231275][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8968.231275][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.231275][ T254] netlink_unicast+0x449/0x710 [ 8968.231275][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.231275][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.231275][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.231275][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.231275][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.231275][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8968.231275][ T254] [ 8968.233517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.233517][ T254] netdev_get_by_index+0x5e/0x80 [ 8968.233517][ T254] fib6_nh_init+0x3d8/0x1580 [ 8968.233517][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8968.233517][ T254] ip6_route_add+0x1c/0x140 [ 8968.233517][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8968.233517][ T254] addrconf_add_dev+0xe2/0x170 [ 8968.233517][ T254] inet6_addr_add+0x12f/0xa40 [ 8968.233517][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8968.233517][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8968.233517][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.233517][ T254] netlink_unicast+0x449/0x710 [ 8968.233517][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.233517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.233517][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.233517][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.233517][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.233517][ T254] [ 8968.235725][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.235725][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8968.235725][ T254] ipv6_find_idev+0x102/0x170 [ 8968.235725][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8968.235725][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8968.235725][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.235725][ T254] netlink_unicast+0x449/0x710 [ 8968.235725][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.235725][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.235725][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.235725][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.235725][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.235725][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8968.235725][ T254] [ 8968.237457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8968.237457][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8968.237457][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8968.237457][ T254] ipv6_find_idev+0x102/0x170 [ 8968.237457][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8968.237457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8968.237457][ T254] netlink_rcv_skb+0x130/0x360 [ 8968.237457][ T254] netlink_unicast+0x449/0x710 [ 8968.237457][ T254] netlink_sendmsg+0x723/0xbe0 [ 8968.237457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8968.237457][ T254] ___sys_sendmsg+0xee/0x170 [ 8968.237457][ T254] __sys_sendmsg+0xcd/0x170 [ 8968.237457][ T254] do_syscall_64+0xc6/0x1e0 [ 8968.237457][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8968.237457][ T254] [ 8978.487875][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8978.488419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.488419][ T254] dst_init+0x84/0x4a0 [ 8978.488419][ T254] dst_alloc+0x97/0x150 [ 8978.488419][ T254] ip6_dst_alloc+0x23/0x90 [ 8978.488419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8978.488419][ T254] ip6_pol_route+0x56f/0x840 [ 8978.488419][ T254] fib6_rule_lookup+0x334/0x630 [ 8978.488419][ T254] ip6_route_output_flags+0x259/0x480 [ 8978.488419][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8978.488419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8978.488419][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.488419][ T254] netlink_unicast+0x449/0x710 [ 8978.488419][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.488419][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.488419][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.488419][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.488419][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.488419][ T254] [ 8978.490624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.490624][ T254] netdev_get_by_index+0x5e/0x80 [ 8978.490624][ T254] fib6_nh_init+0x3d8/0x1580 [ 8978.490624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8978.490624][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8978.490624][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8978.490624][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8978.490624][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8978.490624][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8978.490624][ T254] addrconf_dad_begin+0x310/0x670 [ 8978.490624][ T254] addrconf_dad_work+0x10b/0xab0 [ 8978.490624][ T254] process_one_work+0x84d/0x18a0 [ 8978.490624][ T254] worker_thread+0x587/0xd30 [ 8978.490624][ T254] kthread+0x28a/0x350 [ 8978.490624][ T254] ret_from_fork+0x31/0x70 [ 8978.490624][ T254] ret_from_fork_asm+0x1a/0x30 [ 8978.490624][ T254] [ 8978.492775][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.492775][ T254] netdev_get_by_index+0x5e/0x80 [ 8978.492775][ T254] fib6_nh_init+0x3d8/0x1580 [ 8978.492775][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8978.492775][ T254] ip6_route_add+0x1c/0x140 [ 8978.492775][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8978.492775][ T254] inet6_addr_add+0x4f8/0xa40 [ 8978.492775][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8978.492775][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8978.492775][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.492775][ T254] netlink_unicast+0x449/0x710 [ 8978.492775][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.492775][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.492775][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.492775][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.492775][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.492775][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8978.492775][ T254] [ 8978.495017][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.495017][ T254] netdev_get_by_index+0x5e/0x80 [ 8978.495017][ T254] fib6_nh_init+0x3d8/0x1580 [ 8978.495017][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8978.495017][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8978.495017][ T254] ipv6_add_addr+0x411/0x2000 [ 8978.495017][ T254] inet6_addr_add+0x30e/0xa40 [ 8978.495017][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8978.495017][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8978.495017][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.495017][ T254] netlink_unicast+0x449/0x710 [ 8978.495017][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.495017][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.495017][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.495017][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.495017][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.495017][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8978.495017][ T254] [ 8978.497270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.497270][ T254] netdev_get_by_index+0x5e/0x80 [ 8978.497270][ T254] fib6_nh_init+0x3d8/0x1580 [ 8978.497270][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8978.497270][ T254] ip6_route_add+0x1c/0x140 [ 8978.497270][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8978.497270][ T254] addrconf_add_dev+0xe2/0x170 [ 8978.497270][ T254] inet6_addr_add+0x12f/0xa40 [ 8978.497270][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8978.497270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8978.497270][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.497270][ T254] netlink_unicast+0x449/0x710 [ 8978.497270][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.497270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.497270][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.497270][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.497270][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.497270][ T254] [ 8978.499500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.499500][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8978.499500][ T254] ipv6_find_idev+0x102/0x170 [ 8978.499500][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8978.499500][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8978.499500][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.499500][ T254] netlink_unicast+0x449/0x710 [ 8978.499500][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.499500][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.499500][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.499500][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.499500][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.499500][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8978.499500][ T254] [ 8978.501223][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8978.501223][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8978.501223][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8978.501223][ T254] ipv6_find_idev+0x102/0x170 [ 8978.501223][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8978.501223][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8978.501223][ T254] netlink_rcv_skb+0x130/0x360 [ 8978.501223][ T254] netlink_unicast+0x449/0x710 [ 8978.501223][ T254] netlink_sendmsg+0x723/0xbe0 [ 8978.501223][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8978.501223][ T254] ___sys_sendmsg+0xee/0x170 [ 8978.501223][ T254] __sys_sendmsg+0xcd/0x170 [ 8978.501223][ T254] do_syscall_64+0xc6/0x1e0 [ 8978.501223][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8978.501223][ T254] [ 8988.751872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8988.752445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.752445][ T254] dst_init+0x84/0x4a0 [ 8988.752445][ T254] dst_alloc+0x97/0x150 [ 8988.752445][ T254] ip6_dst_alloc+0x23/0x90 [ 8988.752445][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8988.752445][ T254] ip6_pol_route+0x56f/0x840 [ 8988.752445][ T254] fib6_rule_lookup+0x334/0x630 [ 8988.752445][ T254] ip6_route_output_flags+0x259/0x480 [ 8988.752445][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8988.752445][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8988.752445][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.752445][ T254] netlink_unicast+0x449/0x710 [ 8988.752445][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.752445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.752445][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.752445][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.752445][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.752445][ T254] [ 8988.754687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.754687][ T254] netdev_get_by_index+0x5e/0x80 [ 8988.754687][ T254] fib6_nh_init+0x3d8/0x1580 [ 8988.754687][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8988.754687][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8988.754687][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8988.754687][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8988.754687][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8988.754687][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8988.754687][ T254] addrconf_dad_begin+0x310/0x670 [ 8988.754687][ T254] addrconf_dad_work+0x10b/0xab0 [ 8988.754687][ T254] process_one_work+0x84d/0x18a0 [ 8988.754687][ T254] worker_thread+0x587/0xd30 [ 8988.754687][ T254] kthread+0x28a/0x350 [ 8988.754687][ T254] ret_from_fork+0x31/0x70 [ 8988.754687][ T254] ret_from_fork_asm+0x1a/0x30 [ 8988.754687][ T254] [ 8988.756877][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.756877][ T254] netdev_get_by_index+0x5e/0x80 [ 8988.756877][ T254] fib6_nh_init+0x3d8/0x1580 [ 8988.756877][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8988.756877][ T254] ip6_route_add+0x1c/0x140 [ 8988.756877][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8988.756877][ T254] inet6_addr_add+0x4f8/0xa40 [ 8988.756877][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8988.756877][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8988.756877][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.756877][ T254] netlink_unicast+0x449/0x710 [ 8988.756877][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.756877][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.756877][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.756877][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.756877][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.756877][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8988.756877][ T254] [ 8988.759142][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.759142][ T254] netdev_get_by_index+0x5e/0x80 [ 8988.759142][ T254] fib6_nh_init+0x3d8/0x1580 [ 8988.759142][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8988.759142][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8988.759142][ T254] ipv6_add_addr+0x411/0x2000 [ 8988.759142][ T254] inet6_addr_add+0x30e/0xa40 [ 8988.759142][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8988.759142][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8988.759142][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.759142][ T254] netlink_unicast+0x449/0x710 [ 8988.759142][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.759142][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.759142][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.759142][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.759142][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.759142][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8988.759142][ T254] [ 8988.761423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.761423][ T254] netdev_get_by_index+0x5e/0x80 [ 8988.761423][ T254] fib6_nh_init+0x3d8/0x1580 [ 8988.761423][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8988.761423][ T254] ip6_route_add+0x1c/0x140 [ 8988.761423][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8988.761423][ T254] addrconf_add_dev+0xe2/0x170 [ 8988.761423][ T254] inet6_addr_add+0x12f/0xa40 [ 8988.761423][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8988.761423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8988.761423][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.761423][ T254] netlink_unicast+0x449/0x710 [ 8988.761423][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.761423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.761423][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.761423][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.761423][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.761423][ T254] [ 8988.763659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.763659][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8988.763659][ T254] ipv6_find_idev+0x102/0x170 [ 8988.763659][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8988.763659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8988.763659][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.763659][ T254] netlink_unicast+0x449/0x710 [ 8988.763659][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.763659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.763659][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.763659][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.763659][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.763659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8988.763659][ T254] [ 8988.765440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8988.765440][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8988.765440][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8988.765440][ T254] ipv6_find_idev+0x102/0x170 [ 8988.765440][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8988.765440][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8988.765440][ T254] netlink_rcv_skb+0x130/0x360 [ 8988.765440][ T254] netlink_unicast+0x449/0x710 [ 8988.765440][ T254] netlink_sendmsg+0x723/0xbe0 [ 8988.765440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8988.765440][ T254] ___sys_sendmsg+0xee/0x170 [ 8988.765440][ T254] __sys_sendmsg+0xcd/0x170 [ 8988.765440][ T254] do_syscall_64+0xc6/0x1e0 [ 8988.765440][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8988.765440][ T254] [ 8999.015843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 8999.016417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.016417][ T254] dst_init+0x84/0x4a0 [ 8999.016417][ T254] dst_alloc+0x97/0x150 [ 8999.016417][ T254] ip6_dst_alloc+0x23/0x90 [ 8999.016417][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 8999.016417][ T254] ip6_pol_route+0x56f/0x840 [ 8999.016417][ T254] fib6_rule_lookup+0x334/0x630 [ 8999.016417][ T254] ip6_route_output_flags+0x259/0x480 [ 8999.016417][ T254] inet6_rtm_getroute+0x980/0xf70 [ 8999.016417][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 8999.016417][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.016417][ T254] netlink_unicast+0x449/0x710 [ 8999.016417][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.016417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.016417][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.016417][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.016417][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.016417][ T254] [ 8999.018680][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.018680][ T254] netdev_get_by_index+0x5e/0x80 [ 8999.018680][ T254] fib6_nh_init+0x3d8/0x1580 [ 8999.018680][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8999.018680][ T254] addrconf_f6i_alloc+0x265/0x560 [ 8999.018680][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 8999.018680][ T254] addrconf_join_anycast+0x1c0/0x220 [ 8999.018680][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 8999.018680][ T254] addrconf_dad_completed+0x12b/0xe20 [ 8999.018680][ T254] addrconf_dad_begin+0x310/0x670 [ 8999.018680][ T254] addrconf_dad_work+0x10b/0xab0 [ 8999.018680][ T254] process_one_work+0x84d/0x18a0 [ 8999.018680][ T254] worker_thread+0x587/0xd30 [ 8999.018680][ T254] kthread+0x28a/0x350 [ 8999.018680][ T254] ret_from_fork+0x31/0x70 [ 8999.018680][ T254] ret_from_fork_asm+0x1a/0x30 [ 8999.018680][ T254] [ 8999.020858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.020858][ T254] netdev_get_by_index+0x5e/0x80 [ 8999.020858][ T254] fib6_nh_init+0x3d8/0x1580 [ 8999.020858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8999.020858][ T254] ip6_route_add+0x1c/0x140 [ 8999.020858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 8999.020858][ T254] inet6_addr_add+0x4f8/0xa40 [ 8999.020858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8999.020858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8999.020858][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.020858][ T254] netlink_unicast+0x449/0x710 [ 8999.020858][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.020858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.020858][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.020858][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.020858][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.020858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8999.020858][ T254] [ 8999.023147][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.023147][ T254] netdev_get_by_index+0x5e/0x80 [ 8999.023147][ T254] fib6_nh_init+0x3d8/0x1580 [ 8999.023147][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8999.023147][ T254] addrconf_f6i_alloc+0x315/0x560 [ 8999.023147][ T254] ipv6_add_addr+0x411/0x2000 [ 8999.023147][ T254] inet6_addr_add+0x30e/0xa40 [ 8999.023147][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8999.023147][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8999.023147][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.023147][ T254] netlink_unicast+0x449/0x710 [ 8999.023147][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.023147][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.023147][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.023147][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.023147][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.023147][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8999.023147][ T254] [ 8999.025423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.025423][ T254] netdev_get_by_index+0x5e/0x80 [ 8999.025423][ T254] fib6_nh_init+0x3d8/0x1580 [ 8999.025423][ T254] ip6_route_info_create+0xf18/0x17d0 [ 8999.025423][ T254] ip6_route_add+0x1c/0x140 [ 8999.025423][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 8999.025423][ T254] addrconf_add_dev+0xe2/0x170 [ 8999.025423][ T254] inet6_addr_add+0x12f/0xa40 [ 8999.025423][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 8999.025423][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8999.025423][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.025423][ T254] netlink_unicast+0x449/0x710 [ 8999.025423][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.025423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.025423][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.025423][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.025423][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.025423][ T254] [ 8999.027660][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.027660][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 8999.027660][ T254] ipv6_find_idev+0x102/0x170 [ 8999.027660][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8999.027660][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8999.027660][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.027660][ T254] netlink_unicast+0x449/0x710 [ 8999.027660][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.027660][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.027660][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.027660][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.027660][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.027660][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8999.027660][ T254] [ 8999.029433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 8999.029433][ T254] neigh_parms_alloc+0x1e5/0x510 [ 8999.029433][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 8999.029433][ T254] ipv6_find_idev+0x102/0x170 [ 8999.029433][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 8999.029433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 8999.029433][ T254] netlink_rcv_skb+0x130/0x360 [ 8999.029433][ T254] netlink_unicast+0x449/0x710 [ 8999.029433][ T254] netlink_sendmsg+0x723/0xbe0 [ 8999.029433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 8999.029433][ T254] ___sys_sendmsg+0xee/0x170 [ 8999.029433][ T254] __sys_sendmsg+0xcd/0x170 [ 8999.029433][ T254] do_syscall_64+0xc6/0x1e0 [ 8999.029433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 8999.029433][ T254] [ 9009.279783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9009.280370][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.280370][ T254] dst_init+0x84/0x4a0 [ 9009.280370][ T254] dst_alloc+0x97/0x150 [ 9009.280370][ T254] ip6_dst_alloc+0x23/0x90 [ 9009.280370][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9009.280370][ T254] ip6_pol_route+0x56f/0x840 [ 9009.280370][ T254] fib6_rule_lookup+0x334/0x630 [ 9009.280370][ T254] ip6_route_output_flags+0x259/0x480 [ 9009.280370][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9009.280370][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9009.280370][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.280370][ T254] netlink_unicast+0x449/0x710 [ 9009.280370][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.280370][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.280370][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.280370][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.280370][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.280370][ T254] [ 9009.282609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.282609][ T254] netdev_get_by_index+0x5e/0x80 [ 9009.282609][ T254] fib6_nh_init+0x3d8/0x1580 [ 9009.282609][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9009.282609][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9009.282609][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9009.282609][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9009.282609][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9009.282609][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9009.282609][ T254] addrconf_dad_begin+0x310/0x670 [ 9009.282609][ T254] addrconf_dad_work+0x10b/0xab0 [ 9009.282609][ T254] process_one_work+0x84d/0x18a0 [ 9009.282609][ T254] worker_thread+0x587/0xd30 [ 9009.282609][ T254] kthread+0x28a/0x350 [ 9009.282609][ T254] ret_from_fork+0x31/0x70 [ 9009.282609][ T254] ret_from_fork_asm+0x1a/0x30 [ 9009.282609][ T254] [ 9009.284799][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.284799][ T254] netdev_get_by_index+0x5e/0x80 [ 9009.284799][ T254] fib6_nh_init+0x3d8/0x1580 [ 9009.284799][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9009.284799][ T254] ip6_route_add+0x1c/0x140 [ 9009.284799][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9009.284799][ T254] inet6_addr_add+0x4f8/0xa40 [ 9009.284799][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9009.284799][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9009.284799][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.284799][ T254] netlink_unicast+0x449/0x710 [ 9009.284799][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.284799][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.284799][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.284799][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.284799][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.284799][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9009.284799][ T254] [ 9009.287087][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.287087][ T254] netdev_get_by_index+0x5e/0x80 [ 9009.287087][ T254] fib6_nh_init+0x3d8/0x1580 [ 9009.287087][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9009.287087][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9009.287087][ T254] ipv6_add_addr+0x411/0x2000 [ 9009.287087][ T254] inet6_addr_add+0x30e/0xa40 [ 9009.287087][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9009.287087][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9009.287087][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.287087][ T254] netlink_unicast+0x449/0x710 [ 9009.287087][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.287087][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.287087][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.287087][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.287087][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.287087][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9009.287087][ T254] [ 9009.289362][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.289362][ T254] netdev_get_by_index+0x5e/0x80 [ 9009.289362][ T254] fib6_nh_init+0x3d8/0x1580 [ 9009.289362][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9009.289362][ T254] ip6_route_add+0x1c/0x140 [ 9009.289362][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9009.289362][ T254] addrconf_add_dev+0xe2/0x170 [ 9009.289362][ T254] inet6_addr_add+0x12f/0xa40 [ 9009.289362][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9009.289362][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9009.289362][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.289362][ T254] netlink_unicast+0x449/0x710 [ 9009.289362][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.289362][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.289362][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.289362][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.289362][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.289362][ T254] [ 9009.291591][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.291591][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9009.291591][ T254] ipv6_find_idev+0x102/0x170 [ 9009.291591][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9009.291591][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9009.291591][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.291591][ T254] netlink_unicast+0x449/0x710 [ 9009.291591][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.291591][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.291591][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.291591][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.291591][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.291591][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9009.291591][ T254] [ 9009.293364][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9009.293364][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9009.293364][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9009.293364][ T254] ipv6_find_idev+0x102/0x170 [ 9009.293364][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9009.293364][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9009.293364][ T254] netlink_rcv_skb+0x130/0x360 [ 9009.293364][ T254] netlink_unicast+0x449/0x710 [ 9009.293364][ T254] netlink_sendmsg+0x723/0xbe0 [ 9009.293364][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9009.293364][ T254] ___sys_sendmsg+0xee/0x170 [ 9009.293364][ T254] __sys_sendmsg+0xcd/0x170 [ 9009.293364][ T254] do_syscall_64+0xc6/0x1e0 [ 9009.293364][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9009.293364][ T254] [ 9019.543846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9019.544411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.544411][ T254] dst_init+0x84/0x4a0 [ 9019.544411][ T254] dst_alloc+0x97/0x150 [ 9019.544411][ T254] ip6_dst_alloc+0x23/0x90 [ 9019.544411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9019.544411][ T254] ip6_pol_route+0x56f/0x840 [ 9019.544411][ T254] fib6_rule_lookup+0x334/0x630 [ 9019.544411][ T254] ip6_route_output_flags+0x259/0x480 [ 9019.544411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9019.544411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9019.544411][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.544411][ T254] netlink_unicast+0x449/0x710 [ 9019.544411][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.544411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.544411][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.544411][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.544411][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.544411][ T254] [ 9019.546672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.546672][ T254] netdev_get_by_index+0x5e/0x80 [ 9019.546672][ T254] fib6_nh_init+0x3d8/0x1580 [ 9019.546672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9019.546672][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9019.546672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9019.546672][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9019.546672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9019.546672][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9019.546672][ T254] addrconf_dad_begin+0x310/0x670 [ 9019.546672][ T254] addrconf_dad_work+0x10b/0xab0 [ 9019.546672][ T254] process_one_work+0x84d/0x18a0 [ 9019.546672][ T254] worker_thread+0x587/0xd30 [ 9019.546672][ T254] kthread+0x28a/0x350 [ 9019.546672][ T254] ret_from_fork+0x31/0x70 [ 9019.546672][ T254] ret_from_fork_asm+0x1a/0x30 [ 9019.546672][ T254] [ 9019.548858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.548858][ T254] netdev_get_by_index+0x5e/0x80 [ 9019.548858][ T254] fib6_nh_init+0x3d8/0x1580 [ 9019.548858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9019.548858][ T254] ip6_route_add+0x1c/0x140 [ 9019.548858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9019.548858][ T254] inet6_addr_add+0x4f8/0xa40 [ 9019.548858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9019.548858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9019.548858][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.548858][ T254] netlink_unicast+0x449/0x710 [ 9019.548858][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.548858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.548858][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.548858][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.548858][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.548858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9019.548858][ T254] [ 9019.551135][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.551135][ T254] netdev_get_by_index+0x5e/0x80 [ 9019.551135][ T254] fib6_nh_init+0x3d8/0x1580 [ 9019.551135][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9019.551135][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9019.551135][ T254] ipv6_add_addr+0x411/0x2000 [ 9019.551135][ T254] inet6_addr_add+0x30e/0xa40 [ 9019.551135][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9019.551135][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9019.551135][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.551135][ T254] netlink_unicast+0x449/0x710 [ 9019.551135][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.551135][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.551135][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.551135][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.551135][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.551135][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9019.551135][ T254] [ 9019.553426][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.553426][ T254] netdev_get_by_index+0x5e/0x80 [ 9019.553426][ T254] fib6_nh_init+0x3d8/0x1580 [ 9019.553426][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9019.553426][ T254] ip6_route_add+0x1c/0x140 [ 9019.553426][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9019.553426][ T254] addrconf_add_dev+0xe2/0x170 [ 9019.553426][ T254] inet6_addr_add+0x12f/0xa40 [ 9019.553426][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9019.553426][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9019.553426][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.553426][ T254] netlink_unicast+0x449/0x710 [ 9019.553426][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.553426][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.553426][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.553426][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.553426][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.553426][ T254] [ 9019.555660][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.555660][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9019.555660][ T254] ipv6_find_idev+0x102/0x170 [ 9019.555660][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9019.555660][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9019.555660][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.555660][ T254] netlink_unicast+0x449/0x710 [ 9019.555660][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.555660][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.555660][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.555660][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.555660][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.555660][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9019.555660][ T254] [ 9019.557438][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9019.557438][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9019.557438][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9019.557438][ T254] ipv6_find_idev+0x102/0x170 [ 9019.557438][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9019.557438][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9019.557438][ T254] netlink_rcv_skb+0x130/0x360 [ 9019.557438][ T254] netlink_unicast+0x449/0x710 [ 9019.557438][ T254] netlink_sendmsg+0x723/0xbe0 [ 9019.557438][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9019.557438][ T254] ___sys_sendmsg+0xee/0x170 [ 9019.557438][ T254] __sys_sendmsg+0xcd/0x170 [ 9019.557438][ T254] do_syscall_64+0xc6/0x1e0 [ 9019.557438][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9019.557438][ T254] [ 9029.647920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9029.648492][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.648492][ T254] dst_init+0x84/0x4a0 [ 9029.648492][ T254] dst_alloc+0x97/0x150 [ 9029.648492][ T254] ip6_dst_alloc+0x23/0x90 [ 9029.648492][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9029.648492][ T254] ip6_pol_route+0x56f/0x840 [ 9029.648492][ T254] fib6_rule_lookup+0x334/0x630 [ 9029.648492][ T254] ip6_route_output_flags+0x259/0x480 [ 9029.648492][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9029.648492][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9029.648492][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.648492][ T254] netlink_unicast+0x449/0x710 [ 9029.648492][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.648492][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.648492][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.648492][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.648492][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.648492][ T254] [ 9029.651023][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.651023][ T254] netdev_get_by_index+0x5e/0x80 [ 9029.651023][ T254] fib6_nh_init+0x3d8/0x1580 [ 9029.651023][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9029.651023][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9029.651023][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9029.651023][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9029.651023][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9029.651023][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9029.651023][ T254] addrconf_dad_begin+0x310/0x670 [ 9029.651023][ T254] addrconf_dad_work+0x10b/0xab0 [ 9029.651023][ T254] process_one_work+0x84d/0x18a0 [ 9029.651023][ T254] worker_thread+0x587/0xd30 [ 9029.651023][ T254] kthread+0x28a/0x350 [ 9029.651023][ T254] ret_from_fork+0x31/0x70 [ 9029.651023][ T254] ret_from_fork_asm+0x1a/0x30 [ 9029.651023][ T254] [ 9029.653197][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.653197][ T254] netdev_get_by_index+0x5e/0x80 [ 9029.653197][ T254] fib6_nh_init+0x3d8/0x1580 [ 9029.653197][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9029.653197][ T254] ip6_route_add+0x1c/0x140 [ 9029.653197][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9029.653197][ T254] inet6_addr_add+0x4f8/0xa40 [ 9029.653197][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9029.653197][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9029.653197][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.653197][ T254] netlink_unicast+0x449/0x710 [ 9029.653197][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.653197][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.653197][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.653197][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.653197][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.653197][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9029.653197][ T254] [ 9029.655465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.655465][ T254] netdev_get_by_index+0x5e/0x80 [ 9029.655465][ T254] fib6_nh_init+0x3d8/0x1580 [ 9029.655465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9029.655465][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9029.655465][ T254] ipv6_add_addr+0x411/0x2000 [ 9029.655465][ T254] inet6_addr_add+0x30e/0xa40 [ 9029.655465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9029.655465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9029.655465][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.655465][ T254] netlink_unicast+0x449/0x710 [ 9029.655465][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.655465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.655465][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.655465][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.655465][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.655465][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9029.655465][ T254] [ 9029.657747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.657747][ T254] netdev_get_by_index+0x5e/0x80 [ 9029.657747][ T254] fib6_nh_init+0x3d8/0x1580 [ 9029.657747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9029.657747][ T254] ip6_route_add+0x1c/0x140 [ 9029.657747][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9029.657747][ T254] addrconf_add_dev+0xe2/0x170 [ 9029.657747][ T254] inet6_addr_add+0x12f/0xa40 [ 9029.657747][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9029.657747][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9029.657747][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.657747][ T254] netlink_unicast+0x449/0x710 [ 9029.657747][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.657747][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.657747][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.657747][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.657747][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.657747][ T254] [ 9029.659988][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.659988][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9029.659988][ T254] ipv6_find_idev+0x102/0x170 [ 9029.659988][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9029.659988][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9029.659988][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.659988][ T254] netlink_unicast+0x449/0x710 [ 9029.659988][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.659988][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.659988][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.659988][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.659988][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.659988][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9029.659988][ T254] [ 9029.661727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9029.661727][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9029.661727][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9029.661727][ T254] ipv6_find_idev+0x102/0x170 [ 9029.661727][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9029.661727][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9029.661727][ T254] netlink_rcv_skb+0x130/0x360 [ 9029.661727][ T254] netlink_unicast+0x449/0x710 [ 9029.661727][ T254] netlink_sendmsg+0x723/0xbe0 [ 9029.661727][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9029.661727][ T254] ___sys_sendmsg+0xee/0x170 [ 9029.661727][ T254] __sys_sendmsg+0xcd/0x170 [ 9029.661727][ T254] do_syscall_64+0xc6/0x1e0 [ 9029.661727][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9029.661727][ T254] [ 9039.903880][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9039.904433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.904433][ T254] dst_init+0x84/0x4a0 [ 9039.904433][ T254] dst_alloc+0x97/0x150 [ 9039.904433][ T254] ip6_dst_alloc+0x23/0x90 [ 9039.904433][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9039.904433][ T254] ip6_pol_route+0x56f/0x840 [ 9039.904433][ T254] fib6_rule_lookup+0x334/0x630 [ 9039.904433][ T254] ip6_route_output_flags+0x259/0x480 [ 9039.904433][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9039.904433][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9039.904433][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.904433][ T254] netlink_unicast+0x449/0x710 [ 9039.904433][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.904433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.904433][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.904433][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.904433][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.904433][ T254] [ 9039.906661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.906661][ T254] netdev_get_by_index+0x5e/0x80 [ 9039.906661][ T254] fib6_nh_init+0x3d8/0x1580 [ 9039.906661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9039.906661][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9039.906661][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9039.906661][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9039.906661][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9039.906661][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9039.906661][ T254] addrconf_dad_begin+0x310/0x670 [ 9039.906661][ T254] addrconf_dad_work+0x10b/0xab0 [ 9039.906661][ T254] process_one_work+0x84d/0x18a0 [ 9039.906661][ T254] worker_thread+0x587/0xd30 [ 9039.906661][ T254] kthread+0x28a/0x350 [ 9039.906661][ T254] ret_from_fork+0x31/0x70 [ 9039.906661][ T254] ret_from_fork_asm+0x1a/0x30 [ 9039.906661][ T254] [ 9039.908804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.908804][ T254] netdev_get_by_index+0x5e/0x80 [ 9039.908804][ T254] fib6_nh_init+0x3d8/0x1580 [ 9039.908804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9039.908804][ T254] ip6_route_add+0x1c/0x140 [ 9039.908804][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9039.908804][ T254] inet6_addr_add+0x4f8/0xa40 [ 9039.908804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9039.908804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9039.908804][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.908804][ T254] netlink_unicast+0x449/0x710 [ 9039.908804][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.908804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.908804][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.908804][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.908804][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.908804][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9039.908804][ T254] [ 9039.911048][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.911048][ T254] netdev_get_by_index+0x5e/0x80 [ 9039.911048][ T254] fib6_nh_init+0x3d8/0x1580 [ 9039.911048][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9039.911048][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9039.911048][ T254] ipv6_add_addr+0x411/0x2000 [ 9039.911048][ T254] inet6_addr_add+0x30e/0xa40 [ 9039.911048][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9039.911048][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9039.911048][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.911048][ T254] netlink_unicast+0x449/0x710 [ 9039.911048][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.911048][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.911048][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.911048][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.911048][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.911048][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9039.911048][ T254] [ 9039.913306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.913306][ T254] netdev_get_by_index+0x5e/0x80 [ 9039.913306][ T254] fib6_nh_init+0x3d8/0x1580 [ 9039.913306][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9039.913306][ T254] ip6_route_add+0x1c/0x140 [ 9039.913306][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9039.913306][ T254] addrconf_add_dev+0xe2/0x170 [ 9039.913306][ T254] inet6_addr_add+0x12f/0xa40 [ 9039.913306][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9039.913306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9039.913306][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.913306][ T254] netlink_unicast+0x449/0x710 [ 9039.913306][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.913306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.913306][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.913306][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.913306][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.913306][ T254] [ 9039.915506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.915506][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9039.915506][ T254] ipv6_find_idev+0x102/0x170 [ 9039.915506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9039.915506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9039.915506][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.915506][ T254] netlink_unicast+0x449/0x710 [ 9039.915506][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.915506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.915506][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.915506][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.915506][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.915506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9039.915506][ T254] [ 9039.917229][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9039.917229][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9039.917229][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9039.917229][ T254] ipv6_find_idev+0x102/0x170 [ 9039.917229][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9039.917229][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9039.917229][ T254] netlink_rcv_skb+0x130/0x360 [ 9039.917229][ T254] netlink_unicast+0x449/0x710 [ 9039.917229][ T254] netlink_sendmsg+0x723/0xbe0 [ 9039.917229][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9039.917229][ T254] ___sys_sendmsg+0xee/0x170 [ 9039.917229][ T254] __sys_sendmsg+0xcd/0x170 [ 9039.917229][ T254] do_syscall_64+0xc6/0x1e0 [ 9039.917229][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9039.917229][ T254] [ 9049.919859][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9049.920401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.920401][ T254] dst_init+0x84/0x4a0 [ 9049.920401][ T254] dst_alloc+0x97/0x150 [ 9049.920401][ T254] ip6_dst_alloc+0x23/0x90 [ 9049.920401][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9049.920401][ T254] ip6_pol_route+0x56f/0x840 [ 9049.920401][ T254] fib6_rule_lookup+0x334/0x630 [ 9049.920401][ T254] ip6_route_output_flags+0x259/0x480 [ 9049.920401][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9049.920401][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9049.920401][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.920401][ T254] netlink_unicast+0x449/0x710 [ 9049.920401][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.920401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.920401][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.920401][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.920401][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.920401][ T254] [ 9049.922610][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.922610][ T254] netdev_get_by_index+0x5e/0x80 [ 9049.922610][ T254] fib6_nh_init+0x3d8/0x1580 [ 9049.922610][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9049.922610][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9049.922610][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9049.922610][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9049.922610][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9049.922610][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9049.922610][ T254] addrconf_dad_begin+0x310/0x670 [ 9049.922610][ T254] addrconf_dad_work+0x10b/0xab0 [ 9049.922610][ T254] process_one_work+0x84d/0x18a0 [ 9049.922610][ T254] worker_thread+0x587/0xd30 [ 9049.922610][ T254] kthread+0x28a/0x350 [ 9049.922610][ T254] ret_from_fork+0x31/0x70 [ 9049.922610][ T254] ret_from_fork_asm+0x1a/0x30 [ 9049.922610][ T254] [ 9049.924781][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.924781][ T254] netdev_get_by_index+0x5e/0x80 [ 9049.924781][ T254] fib6_nh_init+0x3d8/0x1580 [ 9049.924781][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9049.924781][ T254] ip6_route_add+0x1c/0x140 [ 9049.924781][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9049.924781][ T254] inet6_addr_add+0x4f8/0xa40 [ 9049.924781][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9049.924781][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9049.924781][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.924781][ T254] netlink_unicast+0x449/0x710 [ 9049.924781][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.924781][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.924781][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.924781][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.924781][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.924781][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9049.924781][ T254] [ 9049.927041][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.927041][ T254] netdev_get_by_index+0x5e/0x80 [ 9049.927041][ T254] fib6_nh_init+0x3d8/0x1580 [ 9049.927041][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9049.927041][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9049.927041][ T254] ipv6_add_addr+0x411/0x2000 [ 9049.927041][ T254] inet6_addr_add+0x30e/0xa40 [ 9049.927041][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9049.927041][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9049.927041][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.927041][ T254] netlink_unicast+0x449/0x710 [ 9049.927041][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.927041][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.927041][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.927041][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.927041][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.927041][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9049.927041][ T254] [ 9049.929290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.929290][ T254] netdev_get_by_index+0x5e/0x80 [ 9049.929290][ T254] fib6_nh_init+0x3d8/0x1580 [ 9049.929290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9049.929290][ T254] ip6_route_add+0x1c/0x140 [ 9049.929290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9049.929290][ T254] addrconf_add_dev+0xe2/0x170 [ 9049.929290][ T254] inet6_addr_add+0x12f/0xa40 [ 9049.929290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9049.929290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9049.929290][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.929290][ T254] netlink_unicast+0x449/0x710 [ 9049.929290][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.929290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.929290][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.929290][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.929290][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.929290][ T254] [ 9049.931487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.931487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9049.931487][ T254] ipv6_find_idev+0x102/0x170 [ 9049.931487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9049.931487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9049.931487][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.931487][ T254] netlink_unicast+0x449/0x710 [ 9049.931487][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.931487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.931487][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.931487][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.931487][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.931487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9049.931487][ T254] [ 9049.933213][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9049.933213][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9049.933213][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9049.933213][ T254] ipv6_find_idev+0x102/0x170 [ 9049.933213][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9049.933213][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9049.933213][ T254] netlink_rcv_skb+0x130/0x360 [ 9049.933213][ T254] netlink_unicast+0x449/0x710 [ 9049.933213][ T254] netlink_sendmsg+0x723/0xbe0 [ 9049.933213][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9049.933213][ T254] ___sys_sendmsg+0xee/0x170 [ 9049.933213][ T254] __sys_sendmsg+0xcd/0x170 [ 9049.933213][ T254] do_syscall_64+0xc6/0x1e0 [ 9049.933213][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9049.933213][ T254] [ 9060.175769][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9060.176349][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.176349][ T254] dst_init+0x84/0x4a0 [ 9060.176349][ T254] dst_alloc+0x97/0x150 [ 9060.176349][ T254] ip6_dst_alloc+0x23/0x90 [ 9060.176349][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9060.176349][ T254] ip6_pol_route+0x56f/0x840 [ 9060.176349][ T254] fib6_rule_lookup+0x334/0x630 [ 9060.176349][ T254] ip6_route_output_flags+0x259/0x480 [ 9060.176349][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9060.176349][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9060.176349][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.176349][ T254] netlink_unicast+0x449/0x710 [ 9060.176349][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.176349][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.176349][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.176349][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.176349][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.176349][ T254] [ 9060.178681][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.178681][ T254] netdev_get_by_index+0x5e/0x80 [ 9060.178681][ T254] fib6_nh_init+0x3d8/0x1580 [ 9060.178681][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9060.178681][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9060.178681][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9060.178681][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9060.178681][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9060.178681][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9060.178681][ T254] addrconf_dad_begin+0x310/0x670 [ 9060.178681][ T254] addrconf_dad_work+0x10b/0xab0 [ 9060.178681][ T254] process_one_work+0x84d/0x18a0 [ 9060.178681][ T254] worker_thread+0x587/0xd30 [ 9060.178681][ T254] kthread+0x28a/0x350 [ 9060.178681][ T254] ret_from_fork+0x31/0x70 [ 9060.178681][ T254] ret_from_fork_asm+0x1a/0x30 [ 9060.178681][ T254] [ 9060.180945][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.180945][ T254] netdev_get_by_index+0x5e/0x80 [ 9060.180945][ T254] fib6_nh_init+0x3d8/0x1580 [ 9060.180945][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9060.180945][ T254] ip6_route_add+0x1c/0x140 [ 9060.180945][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9060.180945][ T254] inet6_addr_add+0x4f8/0xa40 [ 9060.180945][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9060.180945][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9060.180945][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.180945][ T254] netlink_unicast+0x449/0x710 [ 9060.180945][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.180945][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.180945][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.180945][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.180945][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.180945][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9060.180945][ T254] [ 9060.183322][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.183322][ T254] netdev_get_by_index+0x5e/0x80 [ 9060.183322][ T254] fib6_nh_init+0x3d8/0x1580 [ 9060.183322][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9060.183322][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9060.183322][ T254] ipv6_add_addr+0x411/0x2000 [ 9060.183322][ T254] inet6_addr_add+0x30e/0xa40 [ 9060.183322][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9060.183322][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9060.183322][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.183322][ T254] netlink_unicast+0x449/0x710 [ 9060.183322][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.183322][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.183322][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.183322][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.183322][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.183322][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9060.183322][ T254] [ 9060.185694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.185694][ T254] netdev_get_by_index+0x5e/0x80 [ 9060.185694][ T254] fib6_nh_init+0x3d8/0x1580 [ 9060.185694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9060.185694][ T254] ip6_route_add+0x1c/0x140 [ 9060.185694][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9060.185694][ T254] addrconf_add_dev+0xe2/0x170 [ 9060.185694][ T254] inet6_addr_add+0x12f/0xa40 [ 9060.185694][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9060.185694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9060.185694][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.185694][ T254] netlink_unicast+0x449/0x710 [ 9060.185694][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.185694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.185694][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.185694][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.185694][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.185694][ T254] [ 9060.188005][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.188005][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9060.188005][ T254] ipv6_find_idev+0x102/0x170 [ 9060.188005][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9060.188005][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9060.188005][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.188005][ T254] netlink_unicast+0x449/0x710 [ 9060.188005][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.188005][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.188005][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.188005][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.188005][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.188005][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9060.188005][ T254] [ 9060.189831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9060.189831][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9060.189831][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9060.189831][ T254] ipv6_find_idev+0x102/0x170 [ 9060.189831][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9060.189831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9060.189831][ T254] netlink_rcv_skb+0x130/0x360 [ 9060.189831][ T254] netlink_unicast+0x449/0x710 [ 9060.189831][ T254] netlink_sendmsg+0x723/0xbe0 [ 9060.189831][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9060.189831][ T254] ___sys_sendmsg+0xee/0x170 [ 9060.189831][ T254] __sys_sendmsg+0xcd/0x170 [ 9060.189831][ T254] do_syscall_64+0xc6/0x1e0 [ 9060.189831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9060.189831][ T254] [ 9070.680039][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9070.680671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.680671][ T254] dst_init+0x84/0x4a0 [ 9070.680671][ T254] dst_alloc+0x97/0x150 [ 9070.680671][ T254] ip6_dst_alloc+0x23/0x90 [ 9070.680671][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9070.680671][ T254] ip6_pol_route+0x56f/0x840 [ 9070.680671][ T254] fib6_rule_lookup+0x334/0x630 [ 9070.680671][ T254] ip6_route_output_flags+0x259/0x480 [ 9070.680671][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9070.680671][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9070.680671][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.680671][ T254] netlink_unicast+0x449/0x710 [ 9070.680671][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.680671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.680671][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.680671][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.680671][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.680671][ T254] [ 9070.683006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.683006][ T254] netdev_get_by_index+0x5e/0x80 [ 9070.683006][ T254] fib6_nh_init+0x3d8/0x1580 [ 9070.683006][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9070.683006][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9070.683006][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9070.683006][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9070.683006][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9070.683006][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9070.683006][ T254] addrconf_dad_begin+0x310/0x670 [ 9070.683006][ T254] addrconf_dad_work+0x10b/0xab0 [ 9070.683006][ T254] process_one_work+0x84d/0x18a0 [ 9070.683006][ T254] worker_thread+0x587/0xd30 [ 9070.683006][ T254] kthread+0x28a/0x350 [ 9070.683006][ T254] ret_from_fork+0x31/0x70 [ 9070.683006][ T254] ret_from_fork_asm+0x1a/0x30 [ 9070.683006][ T254] [ 9070.685270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.685270][ T254] netdev_get_by_index+0x5e/0x80 [ 9070.685270][ T254] fib6_nh_init+0x3d8/0x1580 [ 9070.685270][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9070.685270][ T254] ip6_route_add+0x1c/0x140 [ 9070.685270][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9070.685270][ T254] inet6_addr_add+0x4f8/0xa40 [ 9070.685270][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9070.685270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9070.685270][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.685270][ T254] netlink_unicast+0x449/0x710 [ 9070.685270][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.685270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.685270][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.685270][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.685270][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.685270][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9070.685270][ T254] [ 9070.687657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.687657][ T254] netdev_get_by_index+0x5e/0x80 [ 9070.687657][ T254] fib6_nh_init+0x3d8/0x1580 [ 9070.687657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9070.687657][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9070.687657][ T254] ipv6_add_addr+0x411/0x2000 [ 9070.687657][ T254] inet6_addr_add+0x30e/0xa40 [ 9070.687657][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9070.687657][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9070.687657][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.687657][ T254] netlink_unicast+0x449/0x710 [ 9070.687657][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.687657][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.687657][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.687657][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.687657][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.687657][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9070.687657][ T254] [ 9070.690015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.690015][ T254] netdev_get_by_index+0x5e/0x80 [ 9070.690015][ T254] fib6_nh_init+0x3d8/0x1580 [ 9070.690015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9070.690015][ T254] ip6_route_add+0x1c/0x140 [ 9070.690015][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9070.690015][ T254] addrconf_add_dev+0xe2/0x170 [ 9070.690015][ T254] inet6_addr_add+0x12f/0xa40 [ 9070.690015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9070.690015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9070.690015][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.690015][ T254] netlink_unicast+0x449/0x710 [ 9070.690015][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.690015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.690015][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.690015][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.690015][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.690015][ T254] [ 9070.692341][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.692341][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9070.692341][ T254] ipv6_find_idev+0x102/0x170 [ 9070.692341][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9070.692341][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9070.692341][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.692341][ T254] netlink_unicast+0x449/0x710 [ 9070.692341][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.692341][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.692341][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.692341][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.692341][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.692341][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9070.692341][ T254] [ 9070.694156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9070.694156][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9070.694156][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9070.694156][ T254] ipv6_find_idev+0x102/0x170 [ 9070.694156][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9070.694156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9070.694156][ T254] netlink_rcv_skb+0x130/0x360 [ 9070.694156][ T254] netlink_unicast+0x449/0x710 [ 9070.694156][ T254] netlink_sendmsg+0x723/0xbe0 [ 9070.694156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9070.694156][ T254] ___sys_sendmsg+0xee/0x170 [ 9070.694156][ T254] __sys_sendmsg+0xcd/0x170 [ 9070.694156][ T254] do_syscall_64+0xc6/0x1e0 [ 9070.694156][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9070.694156][ T254] [ 9080.791871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9080.792461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.792461][ T254] dst_init+0x84/0x4a0 [ 9080.792461][ T254] dst_alloc+0x97/0x150 [ 9080.792461][ T254] ip6_dst_alloc+0x23/0x90 [ 9080.792461][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9080.792461][ T254] ip6_pol_route+0x56f/0x840 [ 9080.792461][ T254] fib6_rule_lookup+0x334/0x630 [ 9080.792461][ T254] ip6_route_output_flags+0x259/0x480 [ 9080.792461][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9080.792461][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9080.792461][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.792461][ T254] netlink_unicast+0x449/0x710 [ 9080.792461][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.792461][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.792461][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.792461][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.792461][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.792461][ T254] [ 9080.794799][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.794799][ T254] netdev_get_by_index+0x5e/0x80 [ 9080.794799][ T254] fib6_nh_init+0x3d8/0x1580 [ 9080.794799][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9080.794799][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9080.794799][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9080.794799][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9080.794799][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9080.794799][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9080.794799][ T254] addrconf_dad_begin+0x310/0x670 [ 9080.794799][ T254] addrconf_dad_work+0x10b/0xab0 [ 9080.794799][ T254] process_one_work+0x84d/0x18a0 [ 9080.794799][ T254] worker_thread+0x587/0xd30 [ 9080.794799][ T254] kthread+0x28a/0x350 [ 9080.794799][ T254] ret_from_fork+0x31/0x70 [ 9080.794799][ T254] ret_from_fork_asm+0x1a/0x30 [ 9080.794799][ T254] [ 9080.797109][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.797109][ T254] netdev_get_by_index+0x5e/0x80 [ 9080.797109][ T254] fib6_nh_init+0x3d8/0x1580 [ 9080.797109][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9080.797109][ T254] ip6_route_add+0x1c/0x140 [ 9080.797109][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9080.797109][ T254] inet6_addr_add+0x4f8/0xa40 [ 9080.797109][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9080.797109][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9080.797109][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.797109][ T254] netlink_unicast+0x449/0x710 [ 9080.797109][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.797109][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.797109][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.797109][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.797109][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.797109][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9080.797109][ T254] [ 9080.799469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.799469][ T254] netdev_get_by_index+0x5e/0x80 [ 9080.799469][ T254] fib6_nh_init+0x3d8/0x1580 [ 9080.799469][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9080.799469][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9080.799469][ T254] ipv6_add_addr+0x411/0x2000 [ 9080.799469][ T254] inet6_addr_add+0x30e/0xa40 [ 9080.799469][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9080.799469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9080.799469][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.799469][ T254] netlink_unicast+0x449/0x710 [ 9080.799469][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.799469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.799469][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.799469][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.799469][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.799469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9080.799469][ T254] [ 9080.801835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.801835][ T254] netdev_get_by_index+0x5e/0x80 [ 9080.801835][ T254] fib6_nh_init+0x3d8/0x1580 [ 9080.801835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9080.801835][ T254] ip6_route_add+0x1c/0x140 [ 9080.801835][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9080.801835][ T254] addrconf_add_dev+0xe2/0x170 [ 9080.801835][ T254] inet6_addr_add+0x12f/0xa40 [ 9080.801835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9080.801835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9080.801835][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.801835][ T254] netlink_unicast+0x449/0x710 [ 9080.801835][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.801835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.801835][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.801835][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.801835][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.801835][ T254] [ 9080.804164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.804164][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9080.804164][ T254] ipv6_find_idev+0x102/0x170 [ 9080.804164][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9080.804164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9080.804164][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.804164][ T254] netlink_unicast+0x449/0x710 [ 9080.804164][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.804164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.804164][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.804164][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.804164][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.804164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9080.804164][ T254] [ 9080.805987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9080.805987][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9080.805987][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9080.805987][ T254] ipv6_find_idev+0x102/0x170 [ 9080.805987][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9080.805987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9080.805987][ T254] netlink_rcv_skb+0x130/0x360 [ 9080.805987][ T254] netlink_unicast+0x449/0x710 [ 9080.805987][ T254] netlink_sendmsg+0x723/0xbe0 [ 9080.805987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9080.805987][ T254] ___sys_sendmsg+0xee/0x170 [ 9080.805987][ T254] __sys_sendmsg+0xcd/0x170 [ 9080.805987][ T254] do_syscall_64+0xc6/0x1e0 [ 9080.805987][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9080.805987][ T254] [ 9091.055880][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9091.056468][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.056468][ T254] dst_init+0x84/0x4a0 [ 9091.056468][ T254] dst_alloc+0x97/0x150 [ 9091.056468][ T254] ip6_dst_alloc+0x23/0x90 [ 9091.056468][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9091.056468][ T254] ip6_pol_route+0x56f/0x840 [ 9091.056468][ T254] fib6_rule_lookup+0x334/0x630 [ 9091.056468][ T254] ip6_route_output_flags+0x259/0x480 [ 9091.056468][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9091.056468][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9091.056468][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.056468][ T254] netlink_unicast+0x449/0x710 [ 9091.056468][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.056468][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.056468][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.056468][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.056468][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.056468][ T254] [ 9091.058812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.058812][ T254] netdev_get_by_index+0x5e/0x80 [ 9091.058812][ T254] fib6_nh_init+0x3d8/0x1580 [ 9091.058812][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9091.058812][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9091.058812][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9091.058812][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9091.058812][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9091.058812][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9091.058812][ T254] addrconf_dad_begin+0x310/0x670 [ 9091.058812][ T254] addrconf_dad_work+0x10b/0xab0 [ 9091.058812][ T254] process_one_work+0x84d/0x18a0 [ 9091.058812][ T254] worker_thread+0x587/0xd30 [ 9091.058812][ T254] kthread+0x28a/0x350 [ 9091.058812][ T254] ret_from_fork+0x31/0x70 [ 9091.058812][ T254] ret_from_fork_asm+0x1a/0x30 [ 9091.058812][ T254] [ 9091.061094][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.061094][ T254] netdev_get_by_index+0x5e/0x80 [ 9091.061094][ T254] fib6_nh_init+0x3d8/0x1580 [ 9091.061094][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9091.061094][ T254] ip6_route_add+0x1c/0x140 [ 9091.061094][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9091.061094][ T254] inet6_addr_add+0x4f8/0xa40 [ 9091.061094][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9091.061094][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9091.061094][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.061094][ T254] netlink_unicast+0x449/0x710 [ 9091.061094][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.061094][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.061094][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.061094][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.061094][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.061094][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9091.061094][ T254] [ 9091.063448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.063448][ T254] netdev_get_by_index+0x5e/0x80 [ 9091.063448][ T254] fib6_nh_init+0x3d8/0x1580 [ 9091.063448][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9091.063448][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9091.063448][ T254] ipv6_add_addr+0x411/0x2000 [ 9091.063448][ T254] inet6_addr_add+0x30e/0xa40 [ 9091.063448][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9091.063448][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9091.063448][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.063448][ T254] netlink_unicast+0x449/0x710 [ 9091.063448][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.063448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.063448][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.063448][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.063448][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.063448][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9091.063448][ T254] [ 9091.065837][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.065837][ T254] netdev_get_by_index+0x5e/0x80 [ 9091.065837][ T254] fib6_nh_init+0x3d8/0x1580 [ 9091.065837][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9091.065837][ T254] ip6_route_add+0x1c/0x140 [ 9091.065837][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9091.065837][ T254] addrconf_add_dev+0xe2/0x170 [ 9091.065837][ T254] inet6_addr_add+0x12f/0xa40 [ 9091.065837][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9091.065837][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9091.065837][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.065837][ T254] netlink_unicast+0x449/0x710 [ 9091.065837][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.065837][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.065837][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.065837][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.065837][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.065837][ T254] [ 9091.068164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.068164][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9091.068164][ T254] ipv6_find_idev+0x102/0x170 [ 9091.068164][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9091.068164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9091.068164][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.068164][ T254] netlink_unicast+0x449/0x710 [ 9091.068164][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.068164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.068164][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.068164][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.068164][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.068164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9091.068164][ T254] [ 9091.070150][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9091.070150][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9091.070150][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9091.070150][ T254] ipv6_find_idev+0x102/0x170 [ 9091.070150][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9091.070150][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9091.070150][ T254] netlink_rcv_skb+0x130/0x360 [ 9091.070150][ T254] netlink_unicast+0x449/0x710 [ 9091.070150][ T254] netlink_sendmsg+0x723/0xbe0 [ 9091.070150][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9091.070150][ T254] ___sys_sendmsg+0xee/0x170 [ 9091.070150][ T254] __sys_sendmsg+0xcd/0x170 [ 9091.070150][ T254] do_syscall_64+0xc6/0x1e0 [ 9091.070150][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9091.070150][ T254] [ 9101.319923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9101.320512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.320512][ T254] dst_init+0x84/0x4a0 [ 9101.320512][ T254] dst_alloc+0x97/0x150 [ 9101.320512][ T254] ip6_dst_alloc+0x23/0x90 [ 9101.320512][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9101.320512][ T254] ip6_pol_route+0x56f/0x840 [ 9101.320512][ T254] fib6_rule_lookup+0x334/0x630 [ 9101.320512][ T254] ip6_route_output_flags+0x259/0x480 [ 9101.320512][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9101.320512][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9101.320512][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.320512][ T254] netlink_unicast+0x449/0x710 [ 9101.320512][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.320512][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.320512][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.320512][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.320512][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.320512][ T254] [ 9101.322836][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.322836][ T254] netdev_get_by_index+0x5e/0x80 [ 9101.322836][ T254] fib6_nh_init+0x3d8/0x1580 [ 9101.322836][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9101.322836][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9101.322836][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9101.322836][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9101.322836][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9101.322836][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9101.322836][ T254] addrconf_dad_begin+0x310/0x670 [ 9101.322836][ T254] addrconf_dad_work+0x10b/0xab0 [ 9101.322836][ T254] process_one_work+0x84d/0x18a0 [ 9101.322836][ T254] worker_thread+0x587/0xd30 [ 9101.322836][ T254] kthread+0x28a/0x350 [ 9101.322836][ T254] ret_from_fork+0x31/0x70 [ 9101.322836][ T254] ret_from_fork_asm+0x1a/0x30 [ 9101.322836][ T254] [ 9101.325101][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.325101][ T254] netdev_get_by_index+0x5e/0x80 [ 9101.325101][ T254] fib6_nh_init+0x3d8/0x1580 [ 9101.325101][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9101.325101][ T254] ip6_route_add+0x1c/0x140 [ 9101.325101][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9101.325101][ T254] inet6_addr_add+0x4f8/0xa40 [ 9101.325101][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9101.325101][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9101.325101][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.325101][ T254] netlink_unicast+0x449/0x710 [ 9101.325101][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.325101][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.325101][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.325101][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.325101][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.325101][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9101.325101][ T254] [ 9101.327465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.327465][ T254] netdev_get_by_index+0x5e/0x80 [ 9101.327465][ T254] fib6_nh_init+0x3d8/0x1580 [ 9101.327465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9101.327465][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9101.327465][ T254] ipv6_add_addr+0x411/0x2000 [ 9101.327465][ T254] inet6_addr_add+0x30e/0xa40 [ 9101.327465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9101.327465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9101.327465][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.327465][ T254] netlink_unicast+0x449/0x710 [ 9101.327465][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.327465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.327465][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.327465][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.327465][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.327465][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9101.327465][ T254] [ 9101.329820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.329820][ T254] netdev_get_by_index+0x5e/0x80 [ 9101.329820][ T254] fib6_nh_init+0x3d8/0x1580 [ 9101.329820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9101.329820][ T254] ip6_route_add+0x1c/0x140 [ 9101.329820][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9101.329820][ T254] addrconf_add_dev+0xe2/0x170 [ 9101.329820][ T254] inet6_addr_add+0x12f/0xa40 [ 9101.329820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9101.329820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9101.329820][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.329820][ T254] netlink_unicast+0x449/0x710 [ 9101.329820][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.329820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.329820][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.329820][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.329820][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.329820][ T254] [ 9101.332132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.332132][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9101.332132][ T254] ipv6_find_idev+0x102/0x170 [ 9101.332132][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9101.332132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9101.332132][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.332132][ T254] netlink_unicast+0x449/0x710 [ 9101.332132][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.332132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.332132][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.332132][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.332132][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.332132][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9101.332132][ T254] [ 9101.333947][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9101.333947][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9101.333947][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9101.333947][ T254] ipv6_find_idev+0x102/0x170 [ 9101.333947][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9101.333947][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9101.333947][ T254] netlink_rcv_skb+0x130/0x360 [ 9101.333947][ T254] netlink_unicast+0x449/0x710 [ 9101.333947][ T254] netlink_sendmsg+0x723/0xbe0 [ 9101.333947][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9101.333947][ T254] ___sys_sendmsg+0xee/0x170 [ 9101.333947][ T254] __sys_sendmsg+0xcd/0x170 [ 9101.333947][ T254] do_syscall_64+0xc6/0x1e0 [ 9101.333947][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9101.333947][ T254] [ 9111.583780][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9111.584357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.584357][ T254] dst_init+0x84/0x4a0 [ 9111.584357][ T254] dst_alloc+0x97/0x150 [ 9111.584357][ T254] ip6_dst_alloc+0x23/0x90 [ 9111.584357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9111.584357][ T254] ip6_pol_route+0x56f/0x840 [ 9111.584357][ T254] fib6_rule_lookup+0x334/0x630 [ 9111.584357][ T254] ip6_route_output_flags+0x259/0x480 [ 9111.584357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9111.584357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9111.584357][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.584357][ T254] netlink_unicast+0x449/0x710 [ 9111.584357][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.584357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.584357][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.584357][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.584357][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.584357][ T254] [ 9111.586694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.586694][ T254] netdev_get_by_index+0x5e/0x80 [ 9111.586694][ T254] fib6_nh_init+0x3d8/0x1580 [ 9111.586694][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9111.586694][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9111.586694][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9111.586694][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9111.586694][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9111.586694][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9111.586694][ T254] addrconf_dad_begin+0x310/0x670 [ 9111.586694][ T254] addrconf_dad_work+0x10b/0xab0 [ 9111.586694][ T254] process_one_work+0x84d/0x18a0 [ 9111.586694][ T254] worker_thread+0x587/0xd30 [ 9111.586694][ T254] kthread+0x28a/0x350 [ 9111.586694][ T254] ret_from_fork+0x31/0x70 [ 9111.586694][ T254] ret_from_fork_asm+0x1a/0x30 [ 9111.586694][ T254] [ 9111.588945][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.588945][ T254] netdev_get_by_index+0x5e/0x80 [ 9111.588945][ T254] fib6_nh_init+0x3d8/0x1580 [ 9111.588945][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9111.588945][ T254] ip6_route_add+0x1c/0x140 [ 9111.588945][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9111.588945][ T254] inet6_addr_add+0x4f8/0xa40 [ 9111.588945][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9111.588945][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9111.588945][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.588945][ T254] netlink_unicast+0x449/0x710 [ 9111.588945][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.588945][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.588945][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.588945][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.588945][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.588945][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9111.588945][ T254] [ 9111.591297][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.591297][ T254] netdev_get_by_index+0x5e/0x80 [ 9111.591297][ T254] fib6_nh_init+0x3d8/0x1580 [ 9111.591297][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9111.591297][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9111.591297][ T254] ipv6_add_addr+0x411/0x2000 [ 9111.591297][ T254] inet6_addr_add+0x30e/0xa40 [ 9111.591297][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9111.591297][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9111.591297][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.591297][ T254] netlink_unicast+0x449/0x710 [ 9111.591297][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.591297][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.591297][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.591297][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.591297][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.591297][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9111.591297][ T254] [ 9111.593652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.593652][ T254] netdev_get_by_index+0x5e/0x80 [ 9111.593652][ T254] fib6_nh_init+0x3d8/0x1580 [ 9111.593652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9111.593652][ T254] ip6_route_add+0x1c/0x140 [ 9111.593652][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9111.593652][ T254] addrconf_add_dev+0xe2/0x170 [ 9111.593652][ T254] inet6_addr_add+0x12f/0xa40 [ 9111.593652][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9111.593652][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9111.593652][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.593652][ T254] netlink_unicast+0x449/0x710 [ 9111.593652][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.593652][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.593652][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.593652][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.593652][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.593652][ T254] [ 9111.595966][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.595966][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9111.595966][ T254] ipv6_find_idev+0x102/0x170 [ 9111.595966][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9111.595966][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9111.595966][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.595966][ T254] netlink_unicast+0x449/0x710 [ 9111.595966][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.595966][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.595966][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.595966][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.595966][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.595966][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9111.595966][ T254] [ 9111.597778][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9111.597778][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9111.597778][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9111.597778][ T254] ipv6_find_idev+0x102/0x170 [ 9111.597778][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9111.597778][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9111.597778][ T254] netlink_rcv_skb+0x130/0x360 [ 9111.597778][ T254] netlink_unicast+0x449/0x710 [ 9111.597778][ T254] netlink_sendmsg+0x723/0xbe0 [ 9111.597778][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9111.597778][ T254] ___sys_sendmsg+0xee/0x170 [ 9111.597778][ T254] __sys_sendmsg+0xcd/0x170 [ 9111.597778][ T254] do_syscall_64+0xc6/0x1e0 [ 9111.597778][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9111.597778][ T254] [ 9121.799834][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9121.800420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.800420][ T254] dst_init+0x84/0x4a0 [ 9121.800420][ T254] dst_alloc+0x97/0x150 [ 9121.800420][ T254] ip6_dst_alloc+0x23/0x90 [ 9121.800420][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9121.800420][ T254] ip6_pol_route+0x56f/0x840 [ 9121.800420][ T254] fib6_rule_lookup+0x334/0x630 [ 9121.800420][ T254] ip6_route_output_flags+0x259/0x480 [ 9121.800420][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9121.800420][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9121.800420][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.800420][ T254] netlink_unicast+0x449/0x710 [ 9121.800420][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.800420][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.800420][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.800420][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.800420][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.800420][ T254] [ 9121.802733][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.802733][ T254] netdev_get_by_index+0x5e/0x80 [ 9121.802733][ T254] fib6_nh_init+0x3d8/0x1580 [ 9121.802733][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9121.802733][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9121.802733][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9121.802733][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9121.802733][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9121.802733][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9121.802733][ T254] addrconf_dad_begin+0x310/0x670 [ 9121.802733][ T254] addrconf_dad_work+0x10b/0xab0 [ 9121.802733][ T254] process_one_work+0x84d/0x18a0 [ 9121.802733][ T254] worker_thread+0x587/0xd30 [ 9121.802733][ T254] kthread+0x28a/0x350 [ 9121.802733][ T254] ret_from_fork+0x31/0x70 [ 9121.802733][ T254] ret_from_fork_asm+0x1a/0x30 [ 9121.802733][ T254] [ 9121.805000][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.805000][ T254] netdev_get_by_index+0x5e/0x80 [ 9121.805000][ T254] fib6_nh_init+0x3d8/0x1580 [ 9121.805000][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9121.805000][ T254] ip6_route_add+0x1c/0x140 [ 9121.805000][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9121.805000][ T254] inet6_addr_add+0x4f8/0xa40 [ 9121.805000][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9121.805000][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9121.805000][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.805000][ T254] netlink_unicast+0x449/0x710 [ 9121.805000][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.805000][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.805000][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.805000][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.805000][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.805000][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9121.805000][ T254] [ 9121.807358][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.807358][ T254] netdev_get_by_index+0x5e/0x80 [ 9121.807358][ T254] fib6_nh_init+0x3d8/0x1580 [ 9121.807358][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9121.807358][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9121.807358][ T254] ipv6_add_addr+0x411/0x2000 [ 9121.807358][ T254] inet6_addr_add+0x30e/0xa40 [ 9121.807358][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9121.807358][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9121.807358][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.807358][ T254] netlink_unicast+0x449/0x710 [ 9121.807358][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.807358][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.807358][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.807358][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.807358][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.807358][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9121.807358][ T254] [ 9121.809718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.809718][ T254] netdev_get_by_index+0x5e/0x80 [ 9121.809718][ T254] fib6_nh_init+0x3d8/0x1580 [ 9121.809718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9121.809718][ T254] ip6_route_add+0x1c/0x140 [ 9121.809718][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9121.809718][ T254] addrconf_add_dev+0xe2/0x170 [ 9121.809718][ T254] inet6_addr_add+0x12f/0xa40 [ 9121.809718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9121.809718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9121.809718][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.809718][ T254] netlink_unicast+0x449/0x710 [ 9121.809718][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.809718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.809718][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.809718][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.809718][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.809718][ T254] [ 9121.812033][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.812033][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9121.812033][ T254] ipv6_find_idev+0x102/0x170 [ 9121.812033][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9121.812033][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9121.812033][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.812033][ T254] netlink_unicast+0x449/0x710 [ 9121.812033][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.812033][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.812033][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.812033][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.812033][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.812033][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9121.812033][ T254] [ 9121.813868][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9121.813868][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9121.813868][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9121.813868][ T254] ipv6_find_idev+0x102/0x170 [ 9121.813868][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9121.813868][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9121.813868][ T254] netlink_rcv_skb+0x130/0x360 [ 9121.813868][ T254] netlink_unicast+0x449/0x710 [ 9121.813868][ T254] netlink_sendmsg+0x723/0xbe0 [ 9121.813868][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9121.813868][ T254] ___sys_sendmsg+0xee/0x170 [ 9121.813868][ T254] __sys_sendmsg+0xcd/0x170 [ 9121.813868][ T254] do_syscall_64+0xc6/0x1e0 [ 9121.813868][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9121.813868][ T254] [ 9131.839869][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9131.840446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.840446][ T254] dst_init+0x84/0x4a0 [ 9131.840446][ T254] dst_alloc+0x97/0x150 [ 9131.840446][ T254] ip6_dst_alloc+0x23/0x90 [ 9131.840446][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9131.840446][ T254] ip6_pol_route+0x56f/0x840 [ 9131.840446][ T254] fib6_rule_lookup+0x334/0x630 [ 9131.840446][ T254] ip6_route_output_flags+0x259/0x480 [ 9131.840446][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9131.840446][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9131.840446][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.840446][ T254] netlink_unicast+0x449/0x710 [ 9131.840446][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.840446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.840446][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.840446][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.840446][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.840446][ T254] [ 9131.842772][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.842772][ T254] netdev_get_by_index+0x5e/0x80 [ 9131.842772][ T254] fib6_nh_init+0x3d8/0x1580 [ 9131.842772][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9131.842772][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9131.842772][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9131.842772][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9131.842772][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9131.842772][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9131.842772][ T254] addrconf_dad_begin+0x310/0x670 [ 9131.842772][ T254] addrconf_dad_work+0x10b/0xab0 [ 9131.842772][ T254] process_one_work+0x84d/0x18a0 [ 9131.842772][ T254] worker_thread+0x587/0xd30 [ 9131.842772][ T254] kthread+0x28a/0x350 [ 9131.842772][ T254] ret_from_fork+0x31/0x70 [ 9131.842772][ T254] ret_from_fork_asm+0x1a/0x30 [ 9131.842772][ T254] [ 9131.845038][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.845038][ T254] netdev_get_by_index+0x5e/0x80 [ 9131.845038][ T254] fib6_nh_init+0x3d8/0x1580 [ 9131.845038][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9131.845038][ T254] ip6_route_add+0x1c/0x140 [ 9131.845038][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9131.845038][ T254] inet6_addr_add+0x4f8/0xa40 [ 9131.845038][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9131.845038][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9131.845038][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.845038][ T254] netlink_unicast+0x449/0x710 [ 9131.845038][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.845038][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.845038][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.845038][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.845038][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.845038][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9131.845038][ T254] [ 9131.847404][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.847404][ T254] netdev_get_by_index+0x5e/0x80 [ 9131.847404][ T254] fib6_nh_init+0x3d8/0x1580 [ 9131.847404][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9131.847404][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9131.847404][ T254] ipv6_add_addr+0x411/0x2000 [ 9131.847404][ T254] inet6_addr_add+0x30e/0xa40 [ 9131.847404][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9131.847404][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9131.847404][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.847404][ T254] netlink_unicast+0x449/0x710 [ 9131.847404][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.847404][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.847404][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.847404][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.847404][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.847404][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9131.847404][ T254] [ 9131.849768][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.849768][ T254] netdev_get_by_index+0x5e/0x80 [ 9131.849768][ T254] fib6_nh_init+0x3d8/0x1580 [ 9131.849768][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9131.849768][ T254] ip6_route_add+0x1c/0x140 [ 9131.849768][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9131.849768][ T254] addrconf_add_dev+0xe2/0x170 [ 9131.849768][ T254] inet6_addr_add+0x12f/0xa40 [ 9131.849768][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9131.849768][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9131.849768][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.849768][ T254] netlink_unicast+0x449/0x710 [ 9131.849768][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.849768][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.849768][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.849768][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.849768][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.849768][ T254] [ 9131.852102][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.852102][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9131.852102][ T254] ipv6_find_idev+0x102/0x170 [ 9131.852102][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9131.852102][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9131.852102][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.852102][ T254] netlink_unicast+0x449/0x710 [ 9131.852102][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.852102][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.852102][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.852102][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.852102][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.852102][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9131.852102][ T254] [ 9131.853920][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9131.853920][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9131.853920][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9131.853920][ T254] ipv6_find_idev+0x102/0x170 [ 9131.853920][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9131.853920][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9131.853920][ T254] netlink_rcv_skb+0x130/0x360 [ 9131.853920][ T254] netlink_unicast+0x449/0x710 [ 9131.853920][ T254] netlink_sendmsg+0x723/0xbe0 [ 9131.853920][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9131.853920][ T254] ___sys_sendmsg+0xee/0x170 [ 9131.853920][ T254] __sys_sendmsg+0xcd/0x170 [ 9131.853920][ T254] do_syscall_64+0xc6/0x1e0 [ 9131.853920][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9131.853920][ T254] [ 9142.095878][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9142.096448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.096448][ T254] dst_init+0x84/0x4a0 [ 9142.096448][ T254] dst_alloc+0x97/0x150 [ 9142.096448][ T254] ip6_dst_alloc+0x23/0x90 [ 9142.096448][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9142.096448][ T254] ip6_pol_route+0x56f/0x840 [ 9142.096448][ T254] fib6_rule_lookup+0x334/0x630 [ 9142.096448][ T254] ip6_route_output_flags+0x259/0x480 [ 9142.096448][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9142.096448][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9142.096448][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.096448][ T254] netlink_unicast+0x449/0x710 [ 9142.096448][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.096448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.096448][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.096448][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.096448][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.096448][ T254] [ 9142.098747][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.098747][ T254] netdev_get_by_index+0x5e/0x80 [ 9142.098747][ T254] fib6_nh_init+0x3d8/0x1580 [ 9142.098747][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9142.098747][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9142.098747][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9142.098747][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9142.098747][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9142.098747][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9142.098747][ T254] addrconf_dad_begin+0x310/0x670 [ 9142.098747][ T254] addrconf_dad_work+0x10b/0xab0 [ 9142.098747][ T254] process_one_work+0x84d/0x18a0 [ 9142.098747][ T254] worker_thread+0x587/0xd30 [ 9142.098747][ T254] kthread+0x28a/0x350 [ 9142.098747][ T254] ret_from_fork+0x31/0x70 [ 9142.098747][ T254] ret_from_fork_asm+0x1a/0x30 [ 9142.098747][ T254] [ 9142.101117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.101117][ T254] netdev_get_by_index+0x5e/0x80 [ 9142.101117][ T254] fib6_nh_init+0x3d8/0x1580 [ 9142.101117][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9142.101117][ T254] ip6_route_add+0x1c/0x140 [ 9142.101117][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9142.101117][ T254] inet6_addr_add+0x4f8/0xa40 [ 9142.101117][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9142.101117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9142.101117][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.101117][ T254] netlink_unicast+0x449/0x710 [ 9142.101117][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.101117][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.101117][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.101117][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.101117][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.101117][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9142.101117][ T254] [ 9142.103467][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.103467][ T254] netdev_get_by_index+0x5e/0x80 [ 9142.103467][ T254] fib6_nh_init+0x3d8/0x1580 [ 9142.103467][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9142.103467][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9142.103467][ T254] ipv6_add_addr+0x411/0x2000 [ 9142.103467][ T254] inet6_addr_add+0x30e/0xa40 [ 9142.103467][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9142.103467][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9142.103467][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.103467][ T254] netlink_unicast+0x449/0x710 [ 9142.103467][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.103467][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.103467][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.103467][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.103467][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.103467][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9142.103467][ T254] [ 9142.105820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.105820][ T254] netdev_get_by_index+0x5e/0x80 [ 9142.105820][ T254] fib6_nh_init+0x3d8/0x1580 [ 9142.105820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9142.105820][ T254] ip6_route_add+0x1c/0x140 [ 9142.105820][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9142.105820][ T254] addrconf_add_dev+0xe2/0x170 [ 9142.105820][ T254] inet6_addr_add+0x12f/0xa40 [ 9142.105820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9142.105820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9142.105820][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.105820][ T254] netlink_unicast+0x449/0x710 [ 9142.105820][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.105820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.105820][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.105820][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.105820][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.105820][ T254] [ 9142.108114][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.108114][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9142.108114][ T254] ipv6_find_idev+0x102/0x170 [ 9142.108114][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9142.108114][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9142.108114][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.108114][ T254] netlink_unicast+0x449/0x710 [ 9142.108114][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.108114][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.108114][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.108114][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.108114][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.108114][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9142.108114][ T254] [ 9142.109928][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9142.109928][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9142.109928][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9142.109928][ T254] ipv6_find_idev+0x102/0x170 [ 9142.109928][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9142.109928][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9142.109928][ T254] netlink_rcv_skb+0x130/0x360 [ 9142.109928][ T254] netlink_unicast+0x449/0x710 [ 9142.109928][ T254] netlink_sendmsg+0x723/0xbe0 [ 9142.109928][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9142.109928][ T254] ___sys_sendmsg+0xee/0x170 [ 9142.109928][ T254] __sys_sendmsg+0xcd/0x170 [ 9142.109928][ T254] do_syscall_64+0xc6/0x1e0 [ 9142.109928][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9142.109928][ T254] [ 9152.351891][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9152.352428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.352428][ T254] dst_init+0x84/0x4a0 [ 9152.352428][ T254] dst_alloc+0x97/0x150 [ 9152.352428][ T254] ip6_dst_alloc+0x23/0x90 [ 9152.352428][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9152.352428][ T254] ip6_pol_route+0x56f/0x840 [ 9152.352428][ T254] fib6_rule_lookup+0x334/0x630 [ 9152.352428][ T254] ip6_route_output_flags+0x259/0x480 [ 9152.352428][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9152.352428][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9152.352428][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.352428][ T254] netlink_unicast+0x449/0x710 [ 9152.352428][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.352428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.352428][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.352428][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.352428][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.352428][ T254] [ 9152.354728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.354728][ T254] netdev_get_by_index+0x5e/0x80 [ 9152.354728][ T254] fib6_nh_init+0x3d8/0x1580 [ 9152.354728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9152.354728][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9152.354728][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9152.354728][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9152.354728][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9152.354728][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9152.354728][ T254] addrconf_dad_begin+0x310/0x670 [ 9152.354728][ T254] addrconf_dad_work+0x10b/0xab0 [ 9152.354728][ T254] process_one_work+0x84d/0x18a0 [ 9152.354728][ T254] worker_thread+0x587/0xd30 [ 9152.354728][ T254] kthread+0x28a/0x350 [ 9152.354728][ T254] ret_from_fork+0x31/0x70 [ 9152.354728][ T254] ret_from_fork_asm+0x1a/0x30 [ 9152.354728][ T254] [ 9152.356982][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.356982][ T254] netdev_get_by_index+0x5e/0x80 [ 9152.356982][ T254] fib6_nh_init+0x3d8/0x1580 [ 9152.356982][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9152.356982][ T254] ip6_route_add+0x1c/0x140 [ 9152.356982][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9152.356982][ T254] inet6_addr_add+0x4f8/0xa40 [ 9152.356982][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9152.356982][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9152.356982][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.356982][ T254] netlink_unicast+0x449/0x710 [ 9152.356982][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.356982][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.356982][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.356982][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.356982][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.356982][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9152.356982][ T254] [ 9152.359323][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.359323][ T254] netdev_get_by_index+0x5e/0x80 [ 9152.359323][ T254] fib6_nh_init+0x3d8/0x1580 [ 9152.359323][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9152.359323][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9152.359323][ T254] ipv6_add_addr+0x411/0x2000 [ 9152.359323][ T254] inet6_addr_add+0x30e/0xa40 [ 9152.359323][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9152.359323][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9152.359323][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.359323][ T254] netlink_unicast+0x449/0x710 [ 9152.359323][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.359323][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.359323][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.359323][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.359323][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.359323][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9152.359323][ T254] [ 9152.361659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.361659][ T254] netdev_get_by_index+0x5e/0x80 [ 9152.361659][ T254] fib6_nh_init+0x3d8/0x1580 [ 9152.361659][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9152.361659][ T254] ip6_route_add+0x1c/0x140 [ 9152.361659][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9152.361659][ T254] addrconf_add_dev+0xe2/0x170 [ 9152.361659][ T254] inet6_addr_add+0x12f/0xa40 [ 9152.361659][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9152.361659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9152.361659][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.361659][ T254] netlink_unicast+0x449/0x710 [ 9152.361659][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.361659][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.361659][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.361659][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.361659][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.361659][ T254] [ 9152.364112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.364112][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9152.364112][ T254] ipv6_find_idev+0x102/0x170 [ 9152.364112][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9152.364112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9152.364112][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.364112][ T254] netlink_unicast+0x449/0x710 [ 9152.364112][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.364112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.364112][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.364112][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.364112][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.364112][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9152.364112][ T254] [ 9152.365940][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9152.365940][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9152.365940][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9152.365940][ T254] ipv6_find_idev+0x102/0x170 [ 9152.365940][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9152.365940][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9152.365940][ T254] netlink_rcv_skb+0x130/0x360 [ 9152.365940][ T254] netlink_unicast+0x449/0x710 [ 9152.365940][ T254] netlink_sendmsg+0x723/0xbe0 [ 9152.365940][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9152.365940][ T254] ___sys_sendmsg+0xee/0x170 [ 9152.365940][ T254] __sys_sendmsg+0xcd/0x170 [ 9152.365940][ T254] do_syscall_64+0xc6/0x1e0 [ 9152.365940][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9152.365940][ T254] [ 9162.607783][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9162.608393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.608393][ T254] dst_init+0x84/0x4a0 [ 9162.608393][ T254] dst_alloc+0x97/0x150 [ 9162.608393][ T254] ip6_dst_alloc+0x23/0x90 [ 9162.608393][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9162.608393][ T254] ip6_pol_route+0x56f/0x840 [ 9162.608393][ T254] fib6_rule_lookup+0x334/0x630 [ 9162.608393][ T254] ip6_route_output_flags+0x259/0x480 [ 9162.608393][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9162.608393][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9162.608393][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.608393][ T254] netlink_unicast+0x449/0x710 [ 9162.608393][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.608393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.608393][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.608393][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.608393][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.608393][ T254] [ 9162.610811][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.610811][ T254] netdev_get_by_index+0x5e/0x80 [ 9162.610811][ T254] fib6_nh_init+0x3d8/0x1580 [ 9162.610811][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9162.610811][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9162.610811][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9162.610811][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9162.610811][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9162.610811][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9162.610811][ T254] addrconf_dad_begin+0x310/0x670 [ 9162.610811][ T254] addrconf_dad_work+0x10b/0xab0 [ 9162.610811][ T254] process_one_work+0x84d/0x18a0 [ 9162.610811][ T254] worker_thread+0x587/0xd30 [ 9162.610811][ T254] kthread+0x28a/0x350 [ 9162.610811][ T254] ret_from_fork+0x31/0x70 [ 9162.610811][ T254] ret_from_fork_asm+0x1a/0x30 [ 9162.610811][ T254] [ 9162.613059][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.613059][ T254] netdev_get_by_index+0x5e/0x80 [ 9162.613059][ T254] fib6_nh_init+0x3d8/0x1580 [ 9162.613059][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9162.613059][ T254] ip6_route_add+0x1c/0x140 [ 9162.613059][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9162.613059][ T254] inet6_addr_add+0x4f8/0xa40 [ 9162.613059][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9162.613059][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9162.613059][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.613059][ T254] netlink_unicast+0x449/0x710 [ 9162.613059][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.613059][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.613059][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.613059][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.613059][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.613059][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9162.613059][ T254] [ 9162.615426][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.615426][ T254] netdev_get_by_index+0x5e/0x80 [ 9162.615426][ T254] fib6_nh_init+0x3d8/0x1580 [ 9162.615426][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9162.615426][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9162.615426][ T254] ipv6_add_addr+0x411/0x2000 [ 9162.615426][ T254] inet6_addr_add+0x30e/0xa40 [ 9162.615426][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9162.615426][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9162.615426][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.615426][ T254] netlink_unicast+0x449/0x710 [ 9162.615426][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.615426][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.615426][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.615426][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.615426][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.615426][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9162.615426][ T254] [ 9162.617776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.617776][ T254] netdev_get_by_index+0x5e/0x80 [ 9162.617776][ T254] fib6_nh_init+0x3d8/0x1580 [ 9162.617776][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9162.617776][ T254] ip6_route_add+0x1c/0x140 [ 9162.617776][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9162.617776][ T254] addrconf_add_dev+0xe2/0x170 [ 9162.617776][ T254] inet6_addr_add+0x12f/0xa40 [ 9162.617776][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9162.617776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9162.617776][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.617776][ T254] netlink_unicast+0x449/0x710 [ 9162.617776][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.617776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.617776][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.617776][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.617776][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.617776][ T254] [ 9162.620095][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.620095][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9162.620095][ T254] ipv6_find_idev+0x102/0x170 [ 9162.620095][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9162.620095][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9162.620095][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.620095][ T254] netlink_unicast+0x449/0x710 [ 9162.620095][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.620095][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.620095][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.620095][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.620095][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.620095][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9162.620095][ T254] [ 9162.621907][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9162.621907][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9162.621907][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9162.621907][ T254] ipv6_find_idev+0x102/0x170 [ 9162.621907][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9162.621907][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9162.621907][ T254] netlink_rcv_skb+0x130/0x360 [ 9162.621907][ T254] netlink_unicast+0x449/0x710 [ 9162.621907][ T254] netlink_sendmsg+0x723/0xbe0 [ 9162.621907][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9162.621907][ T254] ___sys_sendmsg+0xee/0x170 [ 9162.621907][ T254] __sys_sendmsg+0xcd/0x170 [ 9162.621907][ T254] do_syscall_64+0xc6/0x1e0 [ 9162.621907][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9162.621907][ T254] [ 9172.863790][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9172.864393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.864393][ T254] dst_init+0x84/0x4a0 [ 9172.864393][ T254] dst_alloc+0x97/0x150 [ 9172.864393][ T254] ip6_dst_alloc+0x23/0x90 [ 9172.864393][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9172.864393][ T254] ip6_pol_route+0x56f/0x840 [ 9172.864393][ T254] fib6_rule_lookup+0x334/0x630 [ 9172.864393][ T254] ip6_route_output_flags+0x259/0x480 [ 9172.864393][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9172.864393][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9172.864393][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.864393][ T254] netlink_unicast+0x449/0x710 [ 9172.864393][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.864393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.864393][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.864393][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.864393][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.864393][ T254] [ 9172.866723][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.866723][ T254] netdev_get_by_index+0x5e/0x80 [ 9172.866723][ T254] fib6_nh_init+0x3d8/0x1580 [ 9172.866723][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9172.866723][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9172.866723][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9172.866723][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9172.866723][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9172.866723][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9172.866723][ T254] addrconf_dad_begin+0x310/0x670 [ 9172.866723][ T254] addrconf_dad_work+0x10b/0xab0 [ 9172.866723][ T254] process_one_work+0x84d/0x18a0 [ 9172.866723][ T254] worker_thread+0x587/0xd30 [ 9172.866723][ T254] kthread+0x28a/0x350 [ 9172.866723][ T254] ret_from_fork+0x31/0x70 [ 9172.866723][ T254] ret_from_fork_asm+0x1a/0x30 [ 9172.866723][ T254] [ 9172.868957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.868957][ T254] netdev_get_by_index+0x5e/0x80 [ 9172.868957][ T254] fib6_nh_init+0x3d8/0x1580 [ 9172.868957][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9172.868957][ T254] ip6_route_add+0x1c/0x140 [ 9172.868957][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9172.868957][ T254] inet6_addr_add+0x4f8/0xa40 [ 9172.868957][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9172.868957][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9172.868957][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.868957][ T254] netlink_unicast+0x449/0x710 [ 9172.868957][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.868957][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.868957][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.868957][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.868957][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.868957][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9172.868957][ T254] [ 9172.871308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.871308][ T254] netdev_get_by_index+0x5e/0x80 [ 9172.871308][ T254] fib6_nh_init+0x3d8/0x1580 [ 9172.871308][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9172.871308][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9172.871308][ T254] ipv6_add_addr+0x411/0x2000 [ 9172.871308][ T254] inet6_addr_add+0x30e/0xa40 [ 9172.871308][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9172.871308][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9172.871308][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.871308][ T254] netlink_unicast+0x449/0x710 [ 9172.871308][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.871308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.871308][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.871308][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.871308][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.871308][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9172.871308][ T254] [ 9172.873712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.873712][ T254] netdev_get_by_index+0x5e/0x80 [ 9172.873712][ T254] fib6_nh_init+0x3d8/0x1580 [ 9172.873712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9172.873712][ T254] ip6_route_add+0x1c/0x140 [ 9172.873712][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9172.873712][ T254] addrconf_add_dev+0xe2/0x170 [ 9172.873712][ T254] inet6_addr_add+0x12f/0xa40 [ 9172.873712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9172.873712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9172.873712][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.873712][ T254] netlink_unicast+0x449/0x710 [ 9172.873712][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.873712][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.873712][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.873712][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.873712][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.873712][ T254] [ 9172.876222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.876222][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9172.876222][ T254] ipv6_find_idev+0x102/0x170 [ 9172.876222][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9172.876222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9172.876222][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.876222][ T254] netlink_unicast+0x449/0x710 [ 9172.876222][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.876222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.876222][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.876222][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.876222][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.876222][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9172.876222][ T254] [ 9172.878025][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9172.878025][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9172.878025][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9172.878025][ T254] ipv6_find_idev+0x102/0x170 [ 9172.878025][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9172.878025][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9172.878025][ T254] netlink_rcv_skb+0x130/0x360 [ 9172.878025][ T254] netlink_unicast+0x449/0x710 [ 9172.878025][ T254] netlink_sendmsg+0x723/0xbe0 [ 9172.878025][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9172.878025][ T254] ___sys_sendmsg+0xee/0x170 [ 9172.878025][ T254] __sys_sendmsg+0xcd/0x170 [ 9172.878025][ T254] do_syscall_64+0xc6/0x1e0 [ 9172.878025][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9172.878025][ T254] [ 9182.887872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9182.888439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.888439][ T254] dst_init+0x84/0x4a0 [ 9182.888439][ T254] dst_alloc+0x97/0x150 [ 9182.888439][ T254] ip6_dst_alloc+0x23/0x90 [ 9182.888439][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9182.888439][ T254] ip6_pol_route+0x56f/0x840 [ 9182.888439][ T254] fib6_rule_lookup+0x334/0x630 [ 9182.888439][ T254] ip6_route_output_flags+0x259/0x480 [ 9182.888439][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9182.888439][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9182.888439][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.888439][ T254] netlink_unicast+0x449/0x710 [ 9182.888439][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.888439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.888439][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.888439][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.888439][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.888439][ T254] [ 9182.890732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.890732][ T254] netdev_get_by_index+0x5e/0x80 [ 9182.890732][ T254] fib6_nh_init+0x3d8/0x1580 [ 9182.890732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9182.890732][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9182.890732][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9182.890732][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9182.890732][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9182.890732][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9182.890732][ T254] addrconf_dad_begin+0x310/0x670 [ 9182.890732][ T254] addrconf_dad_work+0x10b/0xab0 [ 9182.890732][ T254] process_one_work+0x84d/0x18a0 [ 9182.890732][ T254] worker_thread+0x587/0xd30 [ 9182.890732][ T254] kthread+0x28a/0x350 [ 9182.890732][ T254] ret_from_fork+0x31/0x70 [ 9182.890732][ T254] ret_from_fork_asm+0x1a/0x30 [ 9182.890732][ T254] [ 9182.892969][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.892969][ T254] netdev_get_by_index+0x5e/0x80 [ 9182.892969][ T254] fib6_nh_init+0x3d8/0x1580 [ 9182.892969][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9182.892969][ T254] ip6_route_add+0x1c/0x140 [ 9182.892969][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9182.892969][ T254] inet6_addr_add+0x4f8/0xa40 [ 9182.892969][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9182.892969][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9182.892969][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.892969][ T254] netlink_unicast+0x449/0x710 [ 9182.892969][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.892969][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.892969][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.892969][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.892969][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.892969][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9182.892969][ T254] [ 9182.895320][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.895320][ T254] netdev_get_by_index+0x5e/0x80 [ 9182.895320][ T254] fib6_nh_init+0x3d8/0x1580 [ 9182.895320][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9182.895320][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9182.895320][ T254] ipv6_add_addr+0x411/0x2000 [ 9182.895320][ T254] inet6_addr_add+0x30e/0xa40 [ 9182.895320][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9182.895320][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9182.895320][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.895320][ T254] netlink_unicast+0x449/0x710 [ 9182.895320][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.895320][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.895320][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.895320][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.895320][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.895320][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9182.895320][ T254] [ 9182.897653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.897653][ T254] netdev_get_by_index+0x5e/0x80 [ 9182.897653][ T254] fib6_nh_init+0x3d8/0x1580 [ 9182.897653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9182.897653][ T254] ip6_route_add+0x1c/0x140 [ 9182.897653][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9182.897653][ T254] addrconf_add_dev+0xe2/0x170 [ 9182.897653][ T254] inet6_addr_add+0x12f/0xa40 [ 9182.897653][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9182.897653][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9182.897653][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.897653][ T254] netlink_unicast+0x449/0x710 [ 9182.897653][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.897653][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.897653][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.897653][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.897653][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.897653][ T254] [ 9182.899857][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.899857][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9182.899857][ T254] ipv6_find_idev+0x102/0x170 [ 9182.899857][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9182.899857][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9182.899857][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.899857][ T254] netlink_unicast+0x449/0x710 [ 9182.899857][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.899857][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.899857][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.899857][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.899857][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.899857][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9182.899857][ T254] [ 9182.901585][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9182.901585][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9182.901585][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9182.901585][ T254] ipv6_find_idev+0x102/0x170 [ 9182.901585][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9182.901585][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9182.901585][ T254] netlink_rcv_skb+0x130/0x360 [ 9182.901585][ T254] netlink_unicast+0x449/0x710 [ 9182.901585][ T254] netlink_sendmsg+0x723/0xbe0 [ 9182.901585][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9182.901585][ T254] ___sys_sendmsg+0xee/0x170 [ 9182.901585][ T254] __sys_sendmsg+0xcd/0x170 [ 9182.901585][ T254] do_syscall_64+0xc6/0x1e0 [ 9182.901585][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9182.901585][ T254] [ 9193.151877][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9193.152423][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.152423][ T254] dst_init+0x84/0x4a0 [ 9193.152423][ T254] dst_alloc+0x97/0x150 [ 9193.152423][ T254] ip6_dst_alloc+0x23/0x90 [ 9193.152423][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9193.152423][ T254] ip6_pol_route+0x56f/0x840 [ 9193.152423][ T254] fib6_rule_lookup+0x334/0x630 [ 9193.152423][ T254] ip6_route_output_flags+0x259/0x480 [ 9193.152423][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9193.152423][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9193.152423][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.152423][ T254] netlink_unicast+0x449/0x710 [ 9193.152423][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.152423][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.152423][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.152423][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.152423][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.152423][ T254] [ 9193.154644][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.154644][ T254] netdev_get_by_index+0x5e/0x80 [ 9193.154644][ T254] fib6_nh_init+0x3d8/0x1580 [ 9193.154644][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9193.154644][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9193.154644][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9193.154644][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9193.154644][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9193.154644][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9193.154644][ T254] addrconf_dad_begin+0x310/0x670 [ 9193.154644][ T254] addrconf_dad_work+0x10b/0xab0 [ 9193.154644][ T254] process_one_work+0x84d/0x18a0 [ 9193.154644][ T254] worker_thread+0x587/0xd30 [ 9193.154644][ T254] kthread+0x28a/0x350 [ 9193.154644][ T254] ret_from_fork+0x31/0x70 [ 9193.154644][ T254] ret_from_fork_asm+0x1a/0x30 [ 9193.154644][ T254] [ 9193.156827][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.156827][ T254] netdev_get_by_index+0x5e/0x80 [ 9193.156827][ T254] fib6_nh_init+0x3d8/0x1580 [ 9193.156827][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9193.156827][ T254] ip6_route_add+0x1c/0x140 [ 9193.156827][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9193.156827][ T254] inet6_addr_add+0x4f8/0xa40 [ 9193.156827][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9193.156827][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9193.156827][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.156827][ T254] netlink_unicast+0x449/0x710 [ 9193.156827][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.156827][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.156827][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.156827][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.156827][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.156827][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9193.156827][ T254] [ 9193.159066][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.159066][ T254] netdev_get_by_index+0x5e/0x80 [ 9193.159066][ T254] fib6_nh_init+0x3d8/0x1580 [ 9193.159066][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9193.159066][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9193.159066][ T254] ipv6_add_addr+0x411/0x2000 [ 9193.159066][ T254] inet6_addr_add+0x30e/0xa40 [ 9193.159066][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9193.159066][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9193.159066][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.159066][ T254] netlink_unicast+0x449/0x710 [ 9193.159066][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.159066][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.159066][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.159066][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.159066][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.159066][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9193.159066][ T254] [ 9193.161312][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.161312][ T254] netdev_get_by_index+0x5e/0x80 [ 9193.161312][ T254] fib6_nh_init+0x3d8/0x1580 [ 9193.161312][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9193.161312][ T254] ip6_route_add+0x1c/0x140 [ 9193.161312][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9193.161312][ T254] addrconf_add_dev+0xe2/0x170 [ 9193.161312][ T254] inet6_addr_add+0x12f/0xa40 [ 9193.161312][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9193.161312][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9193.161312][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.161312][ T254] netlink_unicast+0x449/0x710 [ 9193.161312][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.161312][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.161312][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.161312][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.161312][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.161312][ T254] [ 9193.163789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.163789][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9193.163789][ T254] ipv6_find_idev+0x102/0x170 [ 9193.163789][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9193.163789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9193.163789][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.163789][ T254] netlink_unicast+0x449/0x710 [ 9193.163789][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.163789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.163789][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.163789][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.163789][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.163789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9193.163789][ T254] [ 9193.165525][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9193.165525][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9193.165525][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9193.165525][ T254] ipv6_find_idev+0x102/0x170 [ 9193.165525][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9193.165525][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9193.165525][ T254] netlink_rcv_skb+0x130/0x360 [ 9193.165525][ T254] netlink_unicast+0x449/0x710 [ 9193.165525][ T254] netlink_sendmsg+0x723/0xbe0 [ 9193.165525][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9193.165525][ T254] ___sys_sendmsg+0xee/0x170 [ 9193.165525][ T254] __sys_sendmsg+0xcd/0x170 [ 9193.165525][ T254] do_syscall_64+0xc6/0x1e0 [ 9193.165525][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9193.165525][ T254] [ 9203.359879][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9203.360427][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.360427][ T254] dst_init+0x84/0x4a0 [ 9203.360427][ T254] dst_alloc+0x97/0x150 [ 9203.360427][ T254] ip6_dst_alloc+0x23/0x90 [ 9203.360427][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9203.360427][ T254] ip6_pol_route+0x56f/0x840 [ 9203.360427][ T254] fib6_rule_lookup+0x334/0x630 [ 9203.360427][ T254] ip6_route_output_flags+0x259/0x480 [ 9203.360427][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9203.360427][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9203.360427][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.360427][ T254] netlink_unicast+0x449/0x710 [ 9203.360427][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.360427][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.360427][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.360427][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.360427][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.360427][ T254] [ 9203.362639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.362639][ T254] netdev_get_by_index+0x5e/0x80 [ 9203.362639][ T254] fib6_nh_init+0x3d8/0x1580 [ 9203.362639][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9203.362639][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9203.362639][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9203.362639][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9203.362639][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9203.362639][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9203.362639][ T254] addrconf_dad_begin+0x310/0x670 [ 9203.362639][ T254] addrconf_dad_work+0x10b/0xab0 [ 9203.362639][ T254] process_one_work+0x84d/0x18a0 [ 9203.362639][ T254] worker_thread+0x587/0xd30 [ 9203.362639][ T254] kthread+0x28a/0x350 [ 9203.362639][ T254] ret_from_fork+0x31/0x70 [ 9203.362639][ T254] ret_from_fork_asm+0x1a/0x30 [ 9203.362639][ T254] [ 9203.364789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.364789][ T254] netdev_get_by_index+0x5e/0x80 [ 9203.364789][ T254] fib6_nh_init+0x3d8/0x1580 [ 9203.364789][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9203.364789][ T254] ip6_route_add+0x1c/0x140 [ 9203.364789][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9203.364789][ T254] inet6_addr_add+0x4f8/0xa40 [ 9203.364789][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9203.364789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9203.364789][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.364789][ T254] netlink_unicast+0x449/0x710 [ 9203.364789][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.364789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.364789][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.364789][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.364789][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.364789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9203.364789][ T254] [ 9203.367060][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.367060][ T254] netdev_get_by_index+0x5e/0x80 [ 9203.367060][ T254] fib6_nh_init+0x3d8/0x1580 [ 9203.367060][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9203.367060][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9203.367060][ T254] ipv6_add_addr+0x411/0x2000 [ 9203.367060][ T254] inet6_addr_add+0x30e/0xa40 [ 9203.367060][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9203.367060][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9203.367060][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.367060][ T254] netlink_unicast+0x449/0x710 [ 9203.367060][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.367060][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.367060][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.367060][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.367060][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.367060][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9203.367060][ T254] [ 9203.369300][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.369300][ T254] netdev_get_by_index+0x5e/0x80 [ 9203.369300][ T254] fib6_nh_init+0x3d8/0x1580 [ 9203.369300][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9203.369300][ T254] ip6_route_add+0x1c/0x140 [ 9203.369300][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9203.369300][ T254] addrconf_add_dev+0xe2/0x170 [ 9203.369300][ T254] inet6_addr_add+0x12f/0xa40 [ 9203.369300][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9203.369300][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9203.369300][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.369300][ T254] netlink_unicast+0x449/0x710 [ 9203.369300][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.369300][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.369300][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.369300][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.369300][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.369300][ T254] [ 9203.371498][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.371498][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9203.371498][ T254] ipv6_find_idev+0x102/0x170 [ 9203.371498][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9203.371498][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9203.371498][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.371498][ T254] netlink_unicast+0x449/0x710 [ 9203.371498][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.371498][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.371498][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.371498][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.371498][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.371498][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9203.371498][ T254] [ 9203.373224][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9203.373224][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9203.373224][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9203.373224][ T254] ipv6_find_idev+0x102/0x170 [ 9203.373224][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9203.373224][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9203.373224][ T254] netlink_rcv_skb+0x130/0x360 [ 9203.373224][ T254] netlink_unicast+0x449/0x710 [ 9203.373224][ T254] netlink_sendmsg+0x723/0xbe0 [ 9203.373224][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9203.373224][ T254] ___sys_sendmsg+0xee/0x170 [ 9203.373224][ T254] __sys_sendmsg+0xcd/0x170 [ 9203.373224][ T254] do_syscall_64+0xc6/0x1e0 [ 9203.373224][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9203.373224][ T254] [ 9213.623840][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9213.624390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.624390][ T254] dst_init+0x84/0x4a0 [ 9213.624390][ T254] dst_alloc+0x97/0x150 [ 9213.624390][ T254] ip6_dst_alloc+0x23/0x90 [ 9213.624390][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9213.624390][ T254] ip6_pol_route+0x56f/0x840 [ 9213.624390][ T254] fib6_rule_lookup+0x334/0x630 [ 9213.624390][ T254] ip6_route_output_flags+0x259/0x480 [ 9213.624390][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9213.624390][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9213.624390][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.624390][ T254] netlink_unicast+0x449/0x710 [ 9213.624390][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.624390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.624390][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.624390][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.624390][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.624390][ T254] [ 9213.626608][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.626608][ T254] netdev_get_by_index+0x5e/0x80 [ 9213.626608][ T254] fib6_nh_init+0x3d8/0x1580 [ 9213.626608][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9213.626608][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9213.626608][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9213.626608][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9213.626608][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9213.626608][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9213.626608][ T254] addrconf_dad_begin+0x310/0x670 [ 9213.626608][ T254] addrconf_dad_work+0x10b/0xab0 [ 9213.626608][ T254] process_one_work+0x84d/0x18a0 [ 9213.626608][ T254] worker_thread+0x587/0xd30 [ 9213.626608][ T254] kthread+0x28a/0x350 [ 9213.626608][ T254] ret_from_fork+0x31/0x70 [ 9213.626608][ T254] ret_from_fork_asm+0x1a/0x30 [ 9213.626608][ T254] [ 9213.628753][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.628753][ T254] netdev_get_by_index+0x5e/0x80 [ 9213.628753][ T254] fib6_nh_init+0x3d8/0x1580 [ 9213.628753][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9213.628753][ T254] ip6_route_add+0x1c/0x140 [ 9213.628753][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9213.628753][ T254] inet6_addr_add+0x4f8/0xa40 [ 9213.628753][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9213.628753][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9213.628753][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.628753][ T254] netlink_unicast+0x449/0x710 [ 9213.628753][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.628753][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.628753][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.628753][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.628753][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.628753][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9213.628753][ T254] [ 9213.630991][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.630991][ T254] netdev_get_by_index+0x5e/0x80 [ 9213.630991][ T254] fib6_nh_init+0x3d8/0x1580 [ 9213.630991][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9213.630991][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9213.630991][ T254] ipv6_add_addr+0x411/0x2000 [ 9213.630991][ T254] inet6_addr_add+0x30e/0xa40 [ 9213.630991][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9213.630991][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9213.630991][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.630991][ T254] netlink_unicast+0x449/0x710 [ 9213.630991][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.630991][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.630991][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.630991][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.630991][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.630991][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9213.630991][ T254] [ 9213.633233][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.633233][ T254] netdev_get_by_index+0x5e/0x80 [ 9213.633233][ T254] fib6_nh_init+0x3d8/0x1580 [ 9213.633233][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9213.633233][ T254] ip6_route_add+0x1c/0x140 [ 9213.633233][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9213.633233][ T254] addrconf_add_dev+0xe2/0x170 [ 9213.633233][ T254] inet6_addr_add+0x12f/0xa40 [ 9213.633233][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9213.633233][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9213.633233][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.633233][ T254] netlink_unicast+0x449/0x710 [ 9213.633233][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.633233][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.633233][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.633233][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.633233][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.633233][ T254] [ 9213.635436][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.635436][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9213.635436][ T254] ipv6_find_idev+0x102/0x170 [ 9213.635436][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9213.635436][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9213.635436][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.635436][ T254] netlink_unicast+0x449/0x710 [ 9213.635436][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.635436][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.635436][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.635436][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.635436][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.635436][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9213.635436][ T254] [ 9213.637158][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9213.637158][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9213.637158][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9213.637158][ T254] ipv6_find_idev+0x102/0x170 [ 9213.637158][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9213.637158][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9213.637158][ T254] netlink_rcv_skb+0x130/0x360 [ 9213.637158][ T254] netlink_unicast+0x449/0x710 [ 9213.637158][ T254] netlink_sendmsg+0x723/0xbe0 [ 9213.637158][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9213.637158][ T254] ___sys_sendmsg+0xee/0x170 [ 9213.637158][ T254] __sys_sendmsg+0xcd/0x170 [ 9213.637158][ T254] do_syscall_64+0xc6/0x1e0 [ 9213.637158][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9213.637158][ T254] [ 9223.759926][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9223.760484][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.760484][ T254] dst_init+0x84/0x4a0 [ 9223.760484][ T254] dst_alloc+0x97/0x150 [ 9223.760484][ T254] ip6_dst_alloc+0x23/0x90 [ 9223.760484][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9223.760484][ T254] ip6_pol_route+0x56f/0x840 [ 9223.760484][ T254] fib6_rule_lookup+0x334/0x630 [ 9223.760484][ T254] ip6_route_output_flags+0x259/0x480 [ 9223.760484][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9223.760484][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9223.760484][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.760484][ T254] netlink_unicast+0x449/0x710 [ 9223.760484][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.760484][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.760484][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.760484][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.760484][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.760484][ T254] [ 9223.762698][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.762698][ T254] netdev_get_by_index+0x5e/0x80 [ 9223.762698][ T254] fib6_nh_init+0x3d8/0x1580 [ 9223.762698][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9223.762698][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9223.762698][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9223.762698][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9223.762698][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9223.762698][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9223.762698][ T254] addrconf_dad_begin+0x310/0x670 [ 9223.762698][ T254] addrconf_dad_work+0x10b/0xab0 [ 9223.762698][ T254] process_one_work+0x84d/0x18a0 [ 9223.762698][ T254] worker_thread+0x587/0xd30 [ 9223.762698][ T254] kthread+0x28a/0x350 [ 9223.762698][ T254] ret_from_fork+0x31/0x70 [ 9223.762698][ T254] ret_from_fork_asm+0x1a/0x30 [ 9223.762698][ T254] [ 9223.764856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.764856][ T254] netdev_get_by_index+0x5e/0x80 [ 9223.764856][ T254] fib6_nh_init+0x3d8/0x1580 [ 9223.764856][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9223.764856][ T254] ip6_route_add+0x1c/0x140 [ 9223.764856][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9223.764856][ T254] inet6_addr_add+0x4f8/0xa40 [ 9223.764856][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9223.764856][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9223.764856][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.764856][ T254] netlink_unicast+0x449/0x710 [ 9223.764856][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.764856][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.764856][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.764856][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.764856][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.764856][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9223.764856][ T254] [ 9223.767106][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.767106][ T254] netdev_get_by_index+0x5e/0x80 [ 9223.767106][ T254] fib6_nh_init+0x3d8/0x1580 [ 9223.767106][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9223.767106][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9223.767106][ T254] ipv6_add_addr+0x411/0x2000 [ 9223.767106][ T254] inet6_addr_add+0x30e/0xa40 [ 9223.767106][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9223.767106][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9223.767106][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.767106][ T254] netlink_unicast+0x449/0x710 [ 9223.767106][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.767106][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.767106][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.767106][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.767106][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.767106][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9223.767106][ T254] [ 9223.769356][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.769356][ T254] netdev_get_by_index+0x5e/0x80 [ 9223.769356][ T254] fib6_nh_init+0x3d8/0x1580 [ 9223.769356][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9223.769356][ T254] ip6_route_add+0x1c/0x140 [ 9223.769356][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9223.769356][ T254] addrconf_add_dev+0xe2/0x170 [ 9223.769356][ T254] inet6_addr_add+0x12f/0xa40 [ 9223.769356][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9223.769356][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9223.769356][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.769356][ T254] netlink_unicast+0x449/0x710 [ 9223.769356][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.769356][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.769356][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.769356][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.769356][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.769356][ T254] [ 9223.771571][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.771571][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9223.771571][ T254] ipv6_find_idev+0x102/0x170 [ 9223.771571][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9223.771571][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9223.771571][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.771571][ T254] netlink_unicast+0x449/0x710 [ 9223.771571][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.771571][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.771571][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.771571][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.771571][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.771571][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9223.771571][ T254] [ 9223.773293][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9223.773293][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9223.773293][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9223.773293][ T254] ipv6_find_idev+0x102/0x170 [ 9223.773293][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9223.773293][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9223.773293][ T254] netlink_rcv_skb+0x130/0x360 [ 9223.773293][ T254] netlink_unicast+0x449/0x710 [ 9223.773293][ T254] netlink_sendmsg+0x723/0xbe0 [ 9223.773293][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9223.773293][ T254] ___sys_sendmsg+0xee/0x170 [ 9223.773293][ T254] __sys_sendmsg+0xcd/0x170 [ 9223.773293][ T254] do_syscall_64+0xc6/0x1e0 [ 9223.773293][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9223.773293][ T254] [ 9233.807923][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9233.808477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.808477][ T254] dst_init+0x84/0x4a0 [ 9233.808477][ T254] dst_alloc+0x97/0x150 [ 9233.808477][ T254] ip6_dst_alloc+0x23/0x90 [ 9233.808477][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9233.808477][ T254] ip6_pol_route+0x56f/0x840 [ 9233.808477][ T254] fib6_rule_lookup+0x334/0x630 [ 9233.808477][ T254] ip6_route_output_flags+0x259/0x480 [ 9233.808477][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9233.808477][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9233.808477][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.808477][ T254] netlink_unicast+0x449/0x710 [ 9233.808477][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.808477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.808477][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.808477][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.808477][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.808477][ T254] [ 9233.810677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.810677][ T254] netdev_get_by_index+0x5e/0x80 [ 9233.810677][ T254] fib6_nh_init+0x3d8/0x1580 [ 9233.810677][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9233.810677][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9233.810677][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9233.810677][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9233.810677][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9233.810677][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9233.810677][ T254] addrconf_dad_begin+0x310/0x670 [ 9233.810677][ T254] addrconf_dad_work+0x10b/0xab0 [ 9233.810677][ T254] process_one_work+0x84d/0x18a0 [ 9233.810677][ T254] worker_thread+0x587/0xd30 [ 9233.810677][ T254] kthread+0x28a/0x350 [ 9233.810677][ T254] ret_from_fork+0x31/0x70 [ 9233.810677][ T254] ret_from_fork_asm+0x1a/0x30 [ 9233.810677][ T254] [ 9233.812834][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.812834][ T254] netdev_get_by_index+0x5e/0x80 [ 9233.812834][ T254] fib6_nh_init+0x3d8/0x1580 [ 9233.812834][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9233.812834][ T254] ip6_route_add+0x1c/0x140 [ 9233.812834][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9233.812834][ T254] inet6_addr_add+0x4f8/0xa40 [ 9233.812834][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9233.812834][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9233.812834][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.812834][ T254] netlink_unicast+0x449/0x710 [ 9233.812834][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.812834][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.812834][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.812834][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.812834][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.812834][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9233.812834][ T254] [ 9233.815091][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.815091][ T254] netdev_get_by_index+0x5e/0x80 [ 9233.815091][ T254] fib6_nh_init+0x3d8/0x1580 [ 9233.815091][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9233.815091][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9233.815091][ T254] ipv6_add_addr+0x411/0x2000 [ 9233.815091][ T254] inet6_addr_add+0x30e/0xa40 [ 9233.815091][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9233.815091][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9233.815091][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.815091][ T254] netlink_unicast+0x449/0x710 [ 9233.815091][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.815091][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.815091][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.815091][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.815091][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.815091][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9233.815091][ T254] [ 9233.817335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.817335][ T254] netdev_get_by_index+0x5e/0x80 [ 9233.817335][ T254] fib6_nh_init+0x3d8/0x1580 [ 9233.817335][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9233.817335][ T254] ip6_route_add+0x1c/0x140 [ 9233.817335][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9233.817335][ T254] addrconf_add_dev+0xe2/0x170 [ 9233.817335][ T254] inet6_addr_add+0x12f/0xa40 [ 9233.817335][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9233.817335][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9233.817335][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.817335][ T254] netlink_unicast+0x449/0x710 [ 9233.817335][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.817335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.817335][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.817335][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.817335][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.817335][ T254] [ 9233.819535][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.819535][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9233.819535][ T254] ipv6_find_idev+0x102/0x170 [ 9233.819535][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9233.819535][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9233.819535][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.819535][ T254] netlink_unicast+0x449/0x710 [ 9233.819535][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.819535][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.819535][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.819535][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.819535][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.819535][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9233.819535][ T254] [ 9233.821255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9233.821255][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9233.821255][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9233.821255][ T254] ipv6_find_idev+0x102/0x170 [ 9233.821255][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9233.821255][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9233.821255][ T254] netlink_rcv_skb+0x130/0x360 [ 9233.821255][ T254] netlink_unicast+0x449/0x710 [ 9233.821255][ T254] netlink_sendmsg+0x723/0xbe0 [ 9233.821255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9233.821255][ T254] ___sys_sendmsg+0xee/0x170 [ 9233.821255][ T254] __sys_sendmsg+0xcd/0x170 [ 9233.821255][ T254] do_syscall_64+0xc6/0x1e0 [ 9233.821255][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9233.821255][ T254] [ 9243.871885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9243.872354][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.872354][ T254] dst_init+0x84/0x4a0 [ 9243.872354][ T254] dst_alloc+0x97/0x150 [ 9243.872354][ T254] ip6_dst_alloc+0x23/0x90 [ 9243.872354][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9243.872354][ T254] ip6_pol_route+0x56f/0x840 [ 9243.872354][ T254] fib6_rule_lookup+0x334/0x630 [ 9243.872354][ T254] ip6_route_output_flags+0x259/0x480 [ 9243.872354][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9243.872354][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9243.872354][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.872354][ T254] netlink_unicast+0x449/0x710 [ 9243.872354][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.872354][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.872354][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.872354][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.872354][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.872354][ T254] [ 9243.874568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.874568][ T254] netdev_get_by_index+0x5e/0x80 [ 9243.874568][ T254] fib6_nh_init+0x3d8/0x1580 [ 9243.874568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9243.874568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9243.874568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9243.874568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9243.874568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9243.874568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9243.874568][ T254] addrconf_dad_begin+0x310/0x670 [ 9243.874568][ T254] addrconf_dad_work+0x10b/0xab0 [ 9243.874568][ T254] process_one_work+0x84d/0x18a0 [ 9243.874568][ T254] worker_thread+0x587/0xd30 [ 9243.874568][ T254] kthread+0x28a/0x350 [ 9243.874568][ T254] ret_from_fork+0x31/0x70 [ 9243.874568][ T254] ret_from_fork_asm+0x1a/0x30 [ 9243.874568][ T254] [ 9243.876721][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.876721][ T254] netdev_get_by_index+0x5e/0x80 [ 9243.876721][ T254] fib6_nh_init+0x3d8/0x1580 [ 9243.876721][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9243.876721][ T254] ip6_route_add+0x1c/0x140 [ 9243.876721][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9243.876721][ T254] inet6_addr_add+0x4f8/0xa40 [ 9243.876721][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9243.876721][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9243.876721][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.876721][ T254] netlink_unicast+0x449/0x710 [ 9243.876721][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.876721][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.876721][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.876721][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.876721][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.876721][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9243.876721][ T254] [ 9243.878962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.878962][ T254] netdev_get_by_index+0x5e/0x80 [ 9243.878962][ T254] fib6_nh_init+0x3d8/0x1580 [ 9243.878962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9243.878962][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9243.878962][ T254] ipv6_add_addr+0x411/0x2000 [ 9243.878962][ T254] inet6_addr_add+0x30e/0xa40 [ 9243.878962][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9243.878962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9243.878962][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.878962][ T254] netlink_unicast+0x449/0x710 [ 9243.878962][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.878962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.878962][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.878962][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.878962][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.878962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9243.878962][ T254] [ 9243.881201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.881201][ T254] netdev_get_by_index+0x5e/0x80 [ 9243.881201][ T254] fib6_nh_init+0x3d8/0x1580 [ 9243.881201][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9243.881201][ T254] ip6_route_add+0x1c/0x140 [ 9243.881201][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9243.881201][ T254] addrconf_add_dev+0xe2/0x170 [ 9243.881201][ T254] inet6_addr_add+0x12f/0xa40 [ 9243.881201][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9243.881201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9243.881201][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.881201][ T254] netlink_unicast+0x449/0x710 [ 9243.881201][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.881201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.881201][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.881201][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.881201][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.881201][ T254] [ 9243.883402][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.883402][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9243.883402][ T254] ipv6_find_idev+0x102/0x170 [ 9243.883402][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9243.883402][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9243.883402][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.883402][ T254] netlink_unicast+0x449/0x710 [ 9243.883402][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.883402][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.883402][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.883402][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.883402][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.883402][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9243.883402][ T254] [ 9243.885155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9243.885155][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9243.885155][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9243.885155][ T254] ipv6_find_idev+0x102/0x170 [ 9243.885155][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9243.885155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9243.885155][ T254] netlink_rcv_skb+0x130/0x360 [ 9243.885155][ T254] netlink_unicast+0x449/0x710 [ 9243.885155][ T254] netlink_sendmsg+0x723/0xbe0 [ 9243.885155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9243.885155][ T254] ___sys_sendmsg+0xee/0x170 [ 9243.885155][ T254] __sys_sendmsg+0xcd/0x170 [ 9243.885155][ T254] do_syscall_64+0xc6/0x1e0 [ 9243.885155][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9243.885155][ T254] [ 9254.127850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9254.128377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.128377][ T254] dst_init+0x84/0x4a0 [ 9254.128377][ T254] dst_alloc+0x97/0x150 [ 9254.128377][ T254] ip6_dst_alloc+0x23/0x90 [ 9254.128377][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9254.128377][ T254] ip6_pol_route+0x56f/0x840 [ 9254.128377][ T254] fib6_rule_lookup+0x334/0x630 [ 9254.128377][ T254] ip6_route_output_flags+0x259/0x480 [ 9254.128377][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9254.128377][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9254.128377][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.128377][ T254] netlink_unicast+0x449/0x710 [ 9254.128377][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.128377][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.128377][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.128377][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.128377][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.128377][ T254] [ 9254.130607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.130607][ T254] netdev_get_by_index+0x5e/0x80 [ 9254.130607][ T254] fib6_nh_init+0x3d8/0x1580 [ 9254.130607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9254.130607][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9254.130607][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9254.130607][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9254.130607][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9254.130607][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9254.130607][ T254] addrconf_dad_begin+0x310/0x670 [ 9254.130607][ T254] addrconf_dad_work+0x10b/0xab0 [ 9254.130607][ T254] process_one_work+0x84d/0x18a0 [ 9254.130607][ T254] worker_thread+0x587/0xd30 [ 9254.130607][ T254] kthread+0x28a/0x350 [ 9254.130607][ T254] ret_from_fork+0x31/0x70 [ 9254.130607][ T254] ret_from_fork_asm+0x1a/0x30 [ 9254.130607][ T254] [ 9254.132757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.132757][ T254] netdev_get_by_index+0x5e/0x80 [ 9254.132757][ T254] fib6_nh_init+0x3d8/0x1580 [ 9254.132757][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9254.132757][ T254] ip6_route_add+0x1c/0x140 [ 9254.132757][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9254.132757][ T254] inet6_addr_add+0x4f8/0xa40 [ 9254.132757][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9254.132757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9254.132757][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.132757][ T254] netlink_unicast+0x449/0x710 [ 9254.132757][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.132757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.132757][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.132757][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.132757][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.132757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9254.132757][ T254] [ 9254.135022][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.135022][ T254] netdev_get_by_index+0x5e/0x80 [ 9254.135022][ T254] fib6_nh_init+0x3d8/0x1580 [ 9254.135022][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9254.135022][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9254.135022][ T254] ipv6_add_addr+0x411/0x2000 [ 9254.135022][ T254] inet6_addr_add+0x30e/0xa40 [ 9254.135022][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9254.135022][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9254.135022][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.135022][ T254] netlink_unicast+0x449/0x710 [ 9254.135022][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.135022][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.135022][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.135022][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.135022][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.135022][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9254.135022][ T254] [ 9254.137261][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.137261][ T254] netdev_get_by_index+0x5e/0x80 [ 9254.137261][ T254] fib6_nh_init+0x3d8/0x1580 [ 9254.137261][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9254.137261][ T254] ip6_route_add+0x1c/0x140 [ 9254.137261][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9254.137261][ T254] addrconf_add_dev+0xe2/0x170 [ 9254.137261][ T254] inet6_addr_add+0x12f/0xa40 [ 9254.137261][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9254.137261][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9254.137261][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.137261][ T254] netlink_unicast+0x449/0x710 [ 9254.137261][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.137261][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.137261][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.137261][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.137261][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.137261][ T254] [ 9254.139455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.139455][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9254.139455][ T254] ipv6_find_idev+0x102/0x170 [ 9254.139455][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9254.139455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9254.139455][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.139455][ T254] netlink_unicast+0x449/0x710 [ 9254.139455][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.139455][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.139455][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.139455][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.139455][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.139455][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9254.139455][ T254] [ 9254.141181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9254.141181][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9254.141181][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9254.141181][ T254] ipv6_find_idev+0x102/0x170 [ 9254.141181][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9254.141181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9254.141181][ T254] netlink_rcv_skb+0x130/0x360 [ 9254.141181][ T254] netlink_unicast+0x449/0x710 [ 9254.141181][ T254] netlink_sendmsg+0x723/0xbe0 [ 9254.141181][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9254.141181][ T254] ___sys_sendmsg+0xee/0x170 [ 9254.141181][ T254] __sys_sendmsg+0xcd/0x170 [ 9254.141181][ T254] do_syscall_64+0xc6/0x1e0 [ 9254.141181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9254.141181][ T254] [ 9264.383791][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9264.384338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.384338][ T254] dst_init+0x84/0x4a0 [ 9264.384338][ T254] dst_alloc+0x97/0x150 [ 9264.384338][ T254] ip6_dst_alloc+0x23/0x90 [ 9264.384338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9264.384338][ T254] ip6_pol_route+0x56f/0x840 [ 9264.384338][ T254] fib6_rule_lookup+0x334/0x630 [ 9264.384338][ T254] ip6_route_output_flags+0x259/0x480 [ 9264.384338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9264.384338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9264.384338][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.384338][ T254] netlink_unicast+0x449/0x710 [ 9264.384338][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.384338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.384338][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.384338][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.384338][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.384338][ T254] [ 9264.386573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.386573][ T254] netdev_get_by_index+0x5e/0x80 [ 9264.386573][ T254] fib6_nh_init+0x3d8/0x1580 [ 9264.386573][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9264.386573][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9264.386573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9264.386573][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9264.386573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9264.386573][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9264.386573][ T254] addrconf_dad_begin+0x310/0x670 [ 9264.386573][ T254] addrconf_dad_work+0x10b/0xab0 [ 9264.386573][ T254] process_one_work+0x84d/0x18a0 [ 9264.386573][ T254] worker_thread+0x587/0xd30 [ 9264.386573][ T254] kthread+0x28a/0x350 [ 9264.386573][ T254] ret_from_fork+0x31/0x70 [ 9264.386573][ T254] ret_from_fork_asm+0x1a/0x30 [ 9264.386573][ T254] [ 9264.388730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.388730][ T254] netdev_get_by_index+0x5e/0x80 [ 9264.388730][ T254] fib6_nh_init+0x3d8/0x1580 [ 9264.388730][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9264.388730][ T254] ip6_route_add+0x1c/0x140 [ 9264.388730][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9264.388730][ T254] inet6_addr_add+0x4f8/0xa40 [ 9264.388730][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9264.388730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9264.388730][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.388730][ T254] netlink_unicast+0x449/0x710 [ 9264.388730][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.388730][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.388730][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.388730][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.388730][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.388730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9264.388730][ T254] [ 9264.390993][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.390993][ T254] netdev_get_by_index+0x5e/0x80 [ 9264.390993][ T254] fib6_nh_init+0x3d8/0x1580 [ 9264.390993][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9264.390993][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9264.390993][ T254] ipv6_add_addr+0x411/0x2000 [ 9264.390993][ T254] inet6_addr_add+0x30e/0xa40 [ 9264.390993][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9264.390993][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9264.390993][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.390993][ T254] netlink_unicast+0x449/0x710 [ 9264.390993][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.390993][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.390993][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.390993][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.390993][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.390993][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9264.390993][ T254] [ 9264.393249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.393249][ T254] netdev_get_by_index+0x5e/0x80 [ 9264.393249][ T254] fib6_nh_init+0x3d8/0x1580 [ 9264.393249][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9264.393249][ T254] ip6_route_add+0x1c/0x140 [ 9264.393249][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9264.393249][ T254] addrconf_add_dev+0xe2/0x170 [ 9264.393249][ T254] inet6_addr_add+0x12f/0xa40 [ 9264.393249][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9264.393249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9264.393249][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.393249][ T254] netlink_unicast+0x449/0x710 [ 9264.393249][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.393249][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.393249][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.393249][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.393249][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.393249][ T254] [ 9264.395487][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.395487][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9264.395487][ T254] ipv6_find_idev+0x102/0x170 [ 9264.395487][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9264.395487][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9264.395487][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.395487][ T254] netlink_unicast+0x449/0x710 [ 9264.395487][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.395487][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.395487][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.395487][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.395487][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.395487][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9264.395487][ T254] [ 9264.397217][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9264.397217][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9264.397217][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9264.397217][ T254] ipv6_find_idev+0x102/0x170 [ 9264.397217][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9264.397217][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9264.397217][ T254] netlink_rcv_skb+0x130/0x360 [ 9264.397217][ T254] netlink_unicast+0x449/0x710 [ 9264.397217][ T254] netlink_sendmsg+0x723/0xbe0 [ 9264.397217][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9264.397217][ T254] ___sys_sendmsg+0xee/0x170 [ 9264.397217][ T254] __sys_sendmsg+0xcd/0x170 [ 9264.397217][ T254] do_syscall_64+0xc6/0x1e0 [ 9264.397217][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9264.397217][ T254] [ 9274.639847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9274.640403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.640403][ T254] dst_init+0x84/0x4a0 [ 9274.640403][ T254] dst_alloc+0x97/0x150 [ 9274.640403][ T254] ip6_dst_alloc+0x23/0x90 [ 9274.640403][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9274.640403][ T254] ip6_pol_route+0x56f/0x840 [ 9274.640403][ T254] fib6_rule_lookup+0x334/0x630 [ 9274.640403][ T254] ip6_route_output_flags+0x259/0x480 [ 9274.640403][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9274.640403][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9274.640403][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.640403][ T254] netlink_unicast+0x449/0x710 [ 9274.640403][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.640403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.640403][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.640403][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.640403][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.640403][ T254] [ 9274.642632][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.642632][ T254] netdev_get_by_index+0x5e/0x80 [ 9274.642632][ T254] fib6_nh_init+0x3d8/0x1580 [ 9274.642632][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9274.642632][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9274.642632][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9274.642632][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9274.642632][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9274.642632][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9274.642632][ T254] addrconf_dad_begin+0x310/0x670 [ 9274.642632][ T254] addrconf_dad_work+0x10b/0xab0 [ 9274.642632][ T254] process_one_work+0x84d/0x18a0 [ 9274.642632][ T254] worker_thread+0x587/0xd30 [ 9274.642632][ T254] kthread+0x28a/0x350 [ 9274.642632][ T254] ret_from_fork+0x31/0x70 [ 9274.642632][ T254] ret_from_fork_asm+0x1a/0x30 [ 9274.642632][ T254] [ 9274.644799][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.644799][ T254] netdev_get_by_index+0x5e/0x80 [ 9274.644799][ T254] fib6_nh_init+0x3d8/0x1580 [ 9274.644799][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9274.644799][ T254] ip6_route_add+0x1c/0x140 [ 9274.644799][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9274.644799][ T254] inet6_addr_add+0x4f8/0xa40 [ 9274.644799][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9274.644799][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9274.644799][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.644799][ T254] netlink_unicast+0x449/0x710 [ 9274.644799][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.644799][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.644799][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.644799][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.644799][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.644799][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9274.644799][ T254] [ 9274.647046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.647046][ T254] netdev_get_by_index+0x5e/0x80 [ 9274.647046][ T254] fib6_nh_init+0x3d8/0x1580 [ 9274.647046][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9274.647046][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9274.647046][ T254] ipv6_add_addr+0x411/0x2000 [ 9274.647046][ T254] inet6_addr_add+0x30e/0xa40 [ 9274.647046][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9274.647046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9274.647046][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.647046][ T254] netlink_unicast+0x449/0x710 [ 9274.647046][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.647046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.647046][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.647046][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.647046][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.647046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9274.647046][ T254] [ 9274.649305][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.649305][ T254] netdev_get_by_index+0x5e/0x80 [ 9274.649305][ T254] fib6_nh_init+0x3d8/0x1580 [ 9274.649305][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9274.649305][ T254] ip6_route_add+0x1c/0x140 [ 9274.649305][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9274.649305][ T254] addrconf_add_dev+0xe2/0x170 [ 9274.649305][ T254] inet6_addr_add+0x12f/0xa40 [ 9274.649305][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9274.649305][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9274.649305][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.649305][ T254] netlink_unicast+0x449/0x710 [ 9274.649305][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.649305][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.649305][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.649305][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.649305][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.649305][ T254] [ 9274.651515][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.651515][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9274.651515][ T254] ipv6_find_idev+0x102/0x170 [ 9274.651515][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9274.651515][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9274.651515][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.651515][ T254] netlink_unicast+0x449/0x710 [ 9274.651515][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.651515][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.651515][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.651515][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.651515][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.651515][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9274.651515][ T254] [ 9274.653241][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9274.653241][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9274.653241][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9274.653241][ T254] ipv6_find_idev+0x102/0x170 [ 9274.653241][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9274.653241][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9274.653241][ T254] netlink_rcv_skb+0x130/0x360 [ 9274.653241][ T254] netlink_unicast+0x449/0x710 [ 9274.653241][ T254] netlink_sendmsg+0x723/0xbe0 [ 9274.653241][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9274.653241][ T254] ___sys_sendmsg+0xee/0x170 [ 9274.653241][ T254] __sys_sendmsg+0xcd/0x170 [ 9274.653241][ T254] do_syscall_64+0xc6/0x1e0 [ 9274.653241][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9274.653241][ T254] [ 9284.895775][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9284.896308][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.896308][ T254] dst_init+0x84/0x4a0 [ 9284.896308][ T254] dst_alloc+0x97/0x150 [ 9284.896308][ T254] ip6_dst_alloc+0x23/0x90 [ 9284.896308][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9284.896308][ T254] ip6_pol_route+0x56f/0x840 [ 9284.896308][ T254] fib6_rule_lookup+0x334/0x630 [ 9284.896308][ T254] ip6_route_output_flags+0x259/0x480 [ 9284.896308][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9284.896308][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9284.896308][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.896308][ T254] netlink_unicast+0x449/0x710 [ 9284.896308][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.896308][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.896308][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.896308][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.896308][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.896308][ T254] [ 9284.898523][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.898523][ T254] netdev_get_by_index+0x5e/0x80 [ 9284.898523][ T254] fib6_nh_init+0x3d8/0x1580 [ 9284.898523][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9284.898523][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9284.898523][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9284.898523][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9284.898523][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9284.898523][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9284.898523][ T254] addrconf_dad_begin+0x310/0x670 [ 9284.898523][ T254] addrconf_dad_work+0x10b/0xab0 [ 9284.898523][ T254] process_one_work+0x84d/0x18a0 [ 9284.898523][ T254] worker_thread+0x587/0xd30 [ 9284.898523][ T254] kthread+0x28a/0x350 [ 9284.898523][ T254] ret_from_fork+0x31/0x70 [ 9284.898523][ T254] ret_from_fork_asm+0x1a/0x30 [ 9284.898523][ T254] [ 9284.900689][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.900689][ T254] netdev_get_by_index+0x5e/0x80 [ 9284.900689][ T254] fib6_nh_init+0x3d8/0x1580 [ 9284.900689][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9284.900689][ T254] ip6_route_add+0x1c/0x140 [ 9284.900689][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9284.900689][ T254] inet6_addr_add+0x4f8/0xa40 [ 9284.900689][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9284.900689][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9284.900689][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.900689][ T254] netlink_unicast+0x449/0x710 [ 9284.900689][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.900689][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.900689][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.900689][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.900689][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.900689][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9284.900689][ T254] [ 9284.903008][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.903008][ T254] netdev_get_by_index+0x5e/0x80 [ 9284.903008][ T254] fib6_nh_init+0x3d8/0x1580 [ 9284.903008][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9284.903008][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9284.903008][ T254] ipv6_add_addr+0x411/0x2000 [ 9284.903008][ T254] inet6_addr_add+0x30e/0xa40 [ 9284.903008][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9284.903008][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9284.903008][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.903008][ T254] netlink_unicast+0x449/0x710 [ 9284.903008][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.903008][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.903008][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.903008][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.903008][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.903008][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9284.903008][ T254] [ 9284.905346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.905346][ T254] netdev_get_by_index+0x5e/0x80 [ 9284.905346][ T254] fib6_nh_init+0x3d8/0x1580 [ 9284.905346][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9284.905346][ T254] ip6_route_add+0x1c/0x140 [ 9284.905346][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9284.905346][ T254] addrconf_add_dev+0xe2/0x170 [ 9284.905346][ T254] inet6_addr_add+0x12f/0xa40 [ 9284.905346][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9284.905346][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9284.905346][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.905346][ T254] netlink_unicast+0x449/0x710 [ 9284.905346][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.905346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.905346][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.905346][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.905346][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.905346][ T254] [ 9284.907615][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.907615][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9284.907615][ T254] ipv6_find_idev+0x102/0x170 [ 9284.907615][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9284.907615][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9284.907615][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.907615][ T254] netlink_unicast+0x449/0x710 [ 9284.907615][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.907615][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.907615][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.907615][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.907615][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.907615][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9284.907615][ T254] [ 9284.909403][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9284.909403][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9284.909403][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9284.909403][ T254] ipv6_find_idev+0x102/0x170 [ 9284.909403][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9284.909403][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9284.909403][ T254] netlink_rcv_skb+0x130/0x360 [ 9284.909403][ T254] netlink_unicast+0x449/0x710 [ 9284.909403][ T254] netlink_sendmsg+0x723/0xbe0 [ 9284.909403][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9284.909403][ T254] ___sys_sendmsg+0xee/0x170 [ 9284.909403][ T254] __sys_sendmsg+0xcd/0x170 [ 9284.909403][ T254] do_syscall_64+0xc6/0x1e0 [ 9284.909403][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9284.909403][ T254] [ 9294.951779][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9294.952307][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.952307][ T254] dst_init+0x84/0x4a0 [ 9294.952307][ T254] dst_alloc+0x97/0x150 [ 9294.952307][ T254] ip6_dst_alloc+0x23/0x90 [ 9294.952307][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9294.952307][ T254] ip6_pol_route+0x56f/0x840 [ 9294.952307][ T254] fib6_rule_lookup+0x334/0x630 [ 9294.952307][ T254] ip6_route_output_flags+0x259/0x480 [ 9294.952307][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9294.952307][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9294.952307][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.952307][ T254] netlink_unicast+0x449/0x710 [ 9294.952307][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.952307][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.952307][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.952307][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.952307][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.952307][ T254] [ 9294.954780][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.954780][ T254] netdev_get_by_index+0x5e/0x80 [ 9294.954780][ T254] fib6_nh_init+0x3d8/0x1580 [ 9294.954780][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9294.954780][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9294.954780][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9294.954780][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9294.954780][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9294.954780][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9294.954780][ T254] addrconf_dad_begin+0x310/0x670 [ 9294.954780][ T254] addrconf_dad_work+0x10b/0xab0 [ 9294.954780][ T254] process_one_work+0x84d/0x18a0 [ 9294.954780][ T254] worker_thread+0x587/0xd30 [ 9294.954780][ T254] kthread+0x28a/0x350 [ 9294.954780][ T254] ret_from_fork+0x31/0x70 [ 9294.954780][ T254] ret_from_fork_asm+0x1a/0x30 [ 9294.954780][ T254] [ 9294.957167][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.957167][ T254] netdev_get_by_index+0x5e/0x80 [ 9294.957167][ T254] fib6_nh_init+0x3d8/0x1580 [ 9294.957167][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9294.957167][ T254] ip6_route_add+0x1c/0x140 [ 9294.957167][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9294.957167][ T254] inet6_addr_add+0x4f8/0xa40 [ 9294.957167][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9294.957167][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9294.957167][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.957167][ T254] netlink_unicast+0x449/0x710 [ 9294.957167][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.957167][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.957167][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.957167][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.957167][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.957167][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9294.957167][ T254] [ 9294.959684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.959684][ T254] netdev_get_by_index+0x5e/0x80 [ 9294.959684][ T254] fib6_nh_init+0x3d8/0x1580 [ 9294.959684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9294.959684][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9294.959684][ T254] ipv6_add_addr+0x411/0x2000 [ 9294.959684][ T254] inet6_addr_add+0x30e/0xa40 [ 9294.959684][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9294.959684][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9294.959684][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.959684][ T254] netlink_unicast+0x449/0x710 [ 9294.959684][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.959684][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.959684][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.959684][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.959684][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.959684][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9294.959684][ T254] [ 9294.962180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.962180][ T254] netdev_get_by_index+0x5e/0x80 [ 9294.962180][ T254] fib6_nh_init+0x3d8/0x1580 [ 9294.962180][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9294.962180][ T254] ip6_route_add+0x1c/0x140 [ 9294.962180][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9294.962180][ T254] addrconf_add_dev+0xe2/0x170 [ 9294.962180][ T254] inet6_addr_add+0x12f/0xa40 [ 9294.962180][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9294.962180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9294.962180][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.962180][ T254] netlink_unicast+0x449/0x710 [ 9294.962180][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.962180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.962180][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.962180][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.962180][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.962180][ T254] [ 9294.964639][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.964639][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9294.964639][ T254] ipv6_find_idev+0x102/0x170 [ 9294.964639][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9294.964639][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9294.964639][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.964639][ T254] netlink_unicast+0x449/0x710 [ 9294.964639][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.964639][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.964639][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.964639][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.964639][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.964639][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9294.964639][ T254] [ 9294.966561][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9294.966561][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9294.966561][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9294.966561][ T254] ipv6_find_idev+0x102/0x170 [ 9294.966561][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9294.966561][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9294.966561][ T254] netlink_rcv_skb+0x130/0x360 [ 9294.966561][ T254] netlink_unicast+0x449/0x710 [ 9294.966561][ T254] netlink_sendmsg+0x723/0xbe0 [ 9294.966561][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9294.966561][ T254] ___sys_sendmsg+0xee/0x170 [ 9294.966561][ T254] __sys_sendmsg+0xcd/0x170 [ 9294.966561][ T254] do_syscall_64+0xc6/0x1e0 [ 9294.966561][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9294.966561][ T254] [ 9305.207812][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9305.208306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.208306][ T254] dst_init+0x84/0x4a0 [ 9305.208306][ T254] dst_alloc+0x97/0x150 [ 9305.208306][ T254] ip6_dst_alloc+0x23/0x90 [ 9305.208306][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9305.208306][ T254] ip6_pol_route+0x56f/0x840 [ 9305.208306][ T254] fib6_rule_lookup+0x334/0x630 [ 9305.208306][ T254] ip6_route_output_flags+0x259/0x480 [ 9305.208306][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9305.208306][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9305.208306][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.208306][ T254] netlink_unicast+0x449/0x710 [ 9305.208306][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.208306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.208306][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.208306][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.208306][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.208306][ T254] [ 9305.210579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.210579][ T254] netdev_get_by_index+0x5e/0x80 [ 9305.210579][ T254] fib6_nh_init+0x3d8/0x1580 [ 9305.210579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9305.210579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9305.210579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9305.210579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9305.210579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9305.210579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9305.210579][ T254] addrconf_dad_begin+0x310/0x670 [ 9305.210579][ T254] addrconf_dad_work+0x10b/0xab0 [ 9305.210579][ T254] process_one_work+0x84d/0x18a0 [ 9305.210579][ T254] worker_thread+0x587/0xd30 [ 9305.210579][ T254] kthread+0x28a/0x350 [ 9305.210579][ T254] ret_from_fork+0x31/0x70 [ 9305.210579][ T254] ret_from_fork_asm+0x1a/0x30 [ 9305.210579][ T254] [ 9305.212800][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.212800][ T254] netdev_get_by_index+0x5e/0x80 [ 9305.212800][ T254] fib6_nh_init+0x3d8/0x1580 [ 9305.212800][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9305.212800][ T254] ip6_route_add+0x1c/0x140 [ 9305.212800][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9305.212800][ T254] inet6_addr_add+0x4f8/0xa40 [ 9305.212800][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9305.212800][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9305.212800][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.212800][ T254] netlink_unicast+0x449/0x710 [ 9305.212800][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.212800][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.212800][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.212800][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.212800][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.212800][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9305.212800][ T254] [ 9305.215122][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.215122][ T254] netdev_get_by_index+0x5e/0x80 [ 9305.215122][ T254] fib6_nh_init+0x3d8/0x1580 [ 9305.215122][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9305.215122][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9305.215122][ T254] ipv6_add_addr+0x411/0x2000 [ 9305.215122][ T254] inet6_addr_add+0x30e/0xa40 [ 9305.215122][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9305.215122][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9305.215122][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.215122][ T254] netlink_unicast+0x449/0x710 [ 9305.215122][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.215122][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.215122][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.215122][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.215122][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.215122][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9305.215122][ T254] [ 9305.217516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.217516][ T254] netdev_get_by_index+0x5e/0x80 [ 9305.217516][ T254] fib6_nh_init+0x3d8/0x1580 [ 9305.217516][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9305.217516][ T254] ip6_route_add+0x1c/0x140 [ 9305.217516][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9305.217516][ T254] addrconf_add_dev+0xe2/0x170 [ 9305.217516][ T254] inet6_addr_add+0x12f/0xa40 [ 9305.217516][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9305.217516][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9305.217516][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.217516][ T254] netlink_unicast+0x449/0x710 [ 9305.217516][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.217516][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.217516][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.217516][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.217516][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.217516][ T254] [ 9305.219784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.219784][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9305.219784][ T254] ipv6_find_idev+0x102/0x170 [ 9305.219784][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9305.219784][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9305.219784][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.219784][ T254] netlink_unicast+0x449/0x710 [ 9305.219784][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.219784][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.219784][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.219784][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.219784][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.219784][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9305.219784][ T254] [ 9305.221569][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9305.221569][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9305.221569][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9305.221569][ T254] ipv6_find_idev+0x102/0x170 [ 9305.221569][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9305.221569][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9305.221569][ T254] netlink_rcv_skb+0x130/0x360 [ 9305.221569][ T254] netlink_unicast+0x449/0x710 [ 9305.221569][ T254] netlink_sendmsg+0x723/0xbe0 [ 9305.221569][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9305.221569][ T254] ___sys_sendmsg+0xee/0x170 [ 9305.221569][ T254] __sys_sendmsg+0xcd/0x170 [ 9305.221569][ T254] do_syscall_64+0xc6/0x1e0 [ 9305.221569][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9305.221569][ T254] [ 9315.463851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9315.464335][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.464335][ T254] dst_init+0x84/0x4a0 [ 9315.464335][ T254] dst_alloc+0x97/0x150 [ 9315.464335][ T254] ip6_dst_alloc+0x23/0x90 [ 9315.464335][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9315.464335][ T254] ip6_pol_route+0x56f/0x840 [ 9315.464335][ T254] fib6_rule_lookup+0x334/0x630 [ 9315.464335][ T254] ip6_route_output_flags+0x259/0x480 [ 9315.464335][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9315.464335][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9315.464335][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.464335][ T254] netlink_unicast+0x449/0x710 [ 9315.464335][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.464335][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.464335][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.464335][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.464335][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.464335][ T254] [ 9315.466621][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.466621][ T254] netdev_get_by_index+0x5e/0x80 [ 9315.466621][ T254] fib6_nh_init+0x3d8/0x1580 [ 9315.466621][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9315.466621][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9315.466621][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9315.466621][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9315.466621][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9315.466621][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9315.466621][ T254] addrconf_dad_begin+0x310/0x670 [ 9315.466621][ T254] addrconf_dad_work+0x10b/0xab0 [ 9315.466621][ T254] process_one_work+0x84d/0x18a0 [ 9315.466621][ T254] worker_thread+0x587/0xd30 [ 9315.466621][ T254] kthread+0x28a/0x350 [ 9315.466621][ T254] ret_from_fork+0x31/0x70 [ 9315.466621][ T254] ret_from_fork_asm+0x1a/0x30 [ 9315.466621][ T254] [ 9315.468820][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.468820][ T254] netdev_get_by_index+0x5e/0x80 [ 9315.468820][ T254] fib6_nh_init+0x3d8/0x1580 [ 9315.468820][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9315.468820][ T254] ip6_route_add+0x1c/0x140 [ 9315.468820][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9315.468820][ T254] inet6_addr_add+0x4f8/0xa40 [ 9315.468820][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9315.468820][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9315.468820][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.468820][ T254] netlink_unicast+0x449/0x710 [ 9315.468820][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.468820][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.468820][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.468820][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.468820][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.468820][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9315.468820][ T254] [ 9315.471180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.471180][ T254] netdev_get_by_index+0x5e/0x80 [ 9315.471180][ T254] fib6_nh_init+0x3d8/0x1580 [ 9315.471180][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9315.471180][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9315.471180][ T254] ipv6_add_addr+0x411/0x2000 [ 9315.471180][ T254] inet6_addr_add+0x30e/0xa40 [ 9315.471180][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9315.471180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9315.471180][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.471180][ T254] netlink_unicast+0x449/0x710 [ 9315.471180][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.471180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.471180][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.471180][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.471180][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.471180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9315.471180][ T254] [ 9315.473428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.473428][ T254] netdev_get_by_index+0x5e/0x80 [ 9315.473428][ T254] fib6_nh_init+0x3d8/0x1580 [ 9315.473428][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9315.473428][ T254] ip6_route_add+0x1c/0x140 [ 9315.473428][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9315.473428][ T254] addrconf_add_dev+0xe2/0x170 [ 9315.473428][ T254] inet6_addr_add+0x12f/0xa40 [ 9315.473428][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9315.473428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9315.473428][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.473428][ T254] netlink_unicast+0x449/0x710 [ 9315.473428][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.473428][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.473428][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.473428][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.473428][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.473428][ T254] [ 9315.475634][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.475634][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9315.475634][ T254] ipv6_find_idev+0x102/0x170 [ 9315.475634][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9315.475634][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9315.475634][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.475634][ T254] netlink_unicast+0x449/0x710 [ 9315.475634][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.475634][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.475634][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.475634][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.475634][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.475634][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9315.475634][ T254] [ 9315.477357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9315.477357][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9315.477357][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9315.477357][ T254] ipv6_find_idev+0x102/0x170 [ 9315.477357][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9315.477357][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9315.477357][ T254] netlink_rcv_skb+0x130/0x360 [ 9315.477357][ T254] netlink_unicast+0x449/0x710 [ 9315.477357][ T254] netlink_sendmsg+0x723/0xbe0 [ 9315.477357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9315.477357][ T254] ___sys_sendmsg+0xee/0x170 [ 9315.477357][ T254] __sys_sendmsg+0xcd/0x170 [ 9315.477357][ T254] do_syscall_64+0xc6/0x1e0 [ 9315.477357][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9315.477357][ T254] [ 9325.719844][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9325.720374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.720374][ T254] dst_init+0x84/0x4a0 [ 9325.720374][ T254] dst_alloc+0x97/0x150 [ 9325.720374][ T254] ip6_dst_alloc+0x23/0x90 [ 9325.720374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9325.720374][ T254] ip6_pol_route+0x56f/0x840 [ 9325.720374][ T254] fib6_rule_lookup+0x334/0x630 [ 9325.720374][ T254] ip6_route_output_flags+0x259/0x480 [ 9325.720374][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9325.720374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9325.720374][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.720374][ T254] netlink_unicast+0x449/0x710 [ 9325.720374][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.720374][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.720374][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.720374][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.720374][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.720374][ T254] [ 9325.722579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.722579][ T254] netdev_get_by_index+0x5e/0x80 [ 9325.722579][ T254] fib6_nh_init+0x3d8/0x1580 [ 9325.722579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9325.722579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9325.722579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9325.722579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9325.722579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9325.722579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9325.722579][ T254] addrconf_dad_begin+0x310/0x670 [ 9325.722579][ T254] addrconf_dad_work+0x10b/0xab0 [ 9325.722579][ T254] process_one_work+0x84d/0x18a0 [ 9325.722579][ T254] worker_thread+0x587/0xd30 [ 9325.722579][ T254] kthread+0x28a/0x350 [ 9325.722579][ T254] ret_from_fork+0x31/0x70 [ 9325.722579][ T254] ret_from_fork_asm+0x1a/0x30 [ 9325.722579][ T254] [ 9325.724746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.724746][ T254] netdev_get_by_index+0x5e/0x80 [ 9325.724746][ T254] fib6_nh_init+0x3d8/0x1580 [ 9325.724746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9325.724746][ T254] ip6_route_add+0x1c/0x140 [ 9325.724746][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9325.724746][ T254] inet6_addr_add+0x4f8/0xa40 [ 9325.724746][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9325.724746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9325.724746][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.724746][ T254] netlink_unicast+0x449/0x710 [ 9325.724746][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.724746][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.724746][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.724746][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.724746][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.724746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9325.724746][ T254] [ 9325.726981][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.726981][ T254] netdev_get_by_index+0x5e/0x80 [ 9325.726981][ T254] fib6_nh_init+0x3d8/0x1580 [ 9325.726981][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9325.726981][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9325.726981][ T254] ipv6_add_addr+0x411/0x2000 [ 9325.726981][ T254] inet6_addr_add+0x30e/0xa40 [ 9325.726981][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9325.726981][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9325.726981][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.726981][ T254] netlink_unicast+0x449/0x710 [ 9325.726981][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.726981][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.726981][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.726981][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.726981][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.726981][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9325.726981][ T254] [ 9325.729222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.729222][ T254] netdev_get_by_index+0x5e/0x80 [ 9325.729222][ T254] fib6_nh_init+0x3d8/0x1580 [ 9325.729222][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9325.729222][ T254] ip6_route_add+0x1c/0x140 [ 9325.729222][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9325.729222][ T254] addrconf_add_dev+0xe2/0x170 [ 9325.729222][ T254] inet6_addr_add+0x12f/0xa40 [ 9325.729222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9325.729222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9325.729222][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.729222][ T254] netlink_unicast+0x449/0x710 [ 9325.729222][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.729222][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.729222][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.729222][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.729222][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.729222][ T254] [ 9325.731422][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.731422][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9325.731422][ T254] ipv6_find_idev+0x102/0x170 [ 9325.731422][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9325.731422][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9325.731422][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.731422][ T254] netlink_unicast+0x449/0x710 [ 9325.731422][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.731422][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.731422][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.731422][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.731422][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.731422][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9325.731422][ T254] [ 9325.733160][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9325.733160][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9325.733160][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9325.733160][ T254] ipv6_find_idev+0x102/0x170 [ 9325.733160][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9325.733160][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9325.733160][ T254] netlink_rcv_skb+0x130/0x360 [ 9325.733160][ T254] netlink_unicast+0x449/0x710 [ 9325.733160][ T254] netlink_sendmsg+0x723/0xbe0 [ 9325.733160][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9325.733160][ T254] ___sys_sendmsg+0xee/0x170 [ 9325.733160][ T254] __sys_sendmsg+0xcd/0x170 [ 9325.733160][ T254] do_syscall_64+0xc6/0x1e0 [ 9325.733160][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9325.733160][ T254] [ 9335.975809][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9335.976336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.976336][ T254] dst_init+0x84/0x4a0 [ 9335.976336][ T254] dst_alloc+0x97/0x150 [ 9335.976336][ T254] ip6_dst_alloc+0x23/0x90 [ 9335.976336][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9335.976336][ T254] ip6_pol_route+0x56f/0x840 [ 9335.976336][ T254] fib6_rule_lookup+0x334/0x630 [ 9335.976336][ T254] ip6_route_output_flags+0x259/0x480 [ 9335.976336][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9335.976336][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9335.976336][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.976336][ T254] netlink_unicast+0x449/0x710 [ 9335.976336][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.976336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.976336][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.976336][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.976336][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.976336][ T254] [ 9335.978566][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.978566][ T254] netdev_get_by_index+0x5e/0x80 [ 9335.978566][ T254] fib6_nh_init+0x3d8/0x1580 [ 9335.978566][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9335.978566][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9335.978566][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9335.978566][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9335.978566][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9335.978566][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9335.978566][ T254] addrconf_dad_begin+0x310/0x670 [ 9335.978566][ T254] addrconf_dad_work+0x10b/0xab0 [ 9335.978566][ T254] process_one_work+0x84d/0x18a0 [ 9335.978566][ T254] worker_thread+0x587/0xd30 [ 9335.978566][ T254] kthread+0x28a/0x350 [ 9335.978566][ T254] ret_from_fork+0x31/0x70 [ 9335.978566][ T254] ret_from_fork_asm+0x1a/0x30 [ 9335.978566][ T254] [ 9335.980720][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.980720][ T254] netdev_get_by_index+0x5e/0x80 [ 9335.980720][ T254] fib6_nh_init+0x3d8/0x1580 [ 9335.980720][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9335.980720][ T254] ip6_route_add+0x1c/0x140 [ 9335.980720][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9335.980720][ T254] inet6_addr_add+0x4f8/0xa40 [ 9335.980720][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9335.980720][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9335.980720][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.980720][ T254] netlink_unicast+0x449/0x710 [ 9335.980720][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.980720][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.980720][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.980720][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.980720][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.980720][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9335.980720][ T254] [ 9335.982980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.982980][ T254] netdev_get_by_index+0x5e/0x80 [ 9335.982980][ T254] fib6_nh_init+0x3d8/0x1580 [ 9335.982980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9335.982980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9335.982980][ T254] ipv6_add_addr+0x411/0x2000 [ 9335.982980][ T254] inet6_addr_add+0x30e/0xa40 [ 9335.982980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9335.982980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9335.982980][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.982980][ T254] netlink_unicast+0x449/0x710 [ 9335.982980][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.982980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.982980][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.982980][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.982980][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.982980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9335.982980][ T254] [ 9335.985260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.985260][ T254] netdev_get_by_index+0x5e/0x80 [ 9335.985260][ T254] fib6_nh_init+0x3d8/0x1580 [ 9335.985260][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9335.985260][ T254] ip6_route_add+0x1c/0x140 [ 9335.985260][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9335.985260][ T254] addrconf_add_dev+0xe2/0x170 [ 9335.985260][ T254] inet6_addr_add+0x12f/0xa40 [ 9335.985260][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9335.985260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9335.985260][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.985260][ T254] netlink_unicast+0x449/0x710 [ 9335.985260][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.985260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.985260][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.985260][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.985260][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.985260][ T254] [ 9335.987469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.987469][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9335.987469][ T254] ipv6_find_idev+0x102/0x170 [ 9335.987469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9335.987469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9335.987469][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.987469][ T254] netlink_unicast+0x449/0x710 [ 9335.987469][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.987469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.987469][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.987469][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.987469][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.987469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9335.987469][ T254] [ 9335.989220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9335.989220][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9335.989220][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9335.989220][ T254] ipv6_find_idev+0x102/0x170 [ 9335.989220][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9335.989220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9335.989220][ T254] netlink_rcv_skb+0x130/0x360 [ 9335.989220][ T254] netlink_unicast+0x449/0x710 [ 9335.989220][ T254] netlink_sendmsg+0x723/0xbe0 [ 9335.989220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9335.989220][ T254] ___sys_sendmsg+0xee/0x170 [ 9335.989220][ T254] __sys_sendmsg+0xcd/0x170 [ 9335.989220][ T254] do_syscall_64+0xc6/0x1e0 [ 9335.989220][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9335.989220][ T254] [ 9346.231765][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9346.232290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.232290][ T254] dst_init+0x84/0x4a0 [ 9346.232290][ T254] dst_alloc+0x97/0x150 [ 9346.232290][ T254] ip6_dst_alloc+0x23/0x90 [ 9346.232290][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9346.232290][ T254] ip6_pol_route+0x56f/0x840 [ 9346.232290][ T254] fib6_rule_lookup+0x334/0x630 [ 9346.232290][ T254] ip6_route_output_flags+0x259/0x480 [ 9346.232290][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9346.232290][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9346.232290][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.232290][ T254] netlink_unicast+0x449/0x710 [ 9346.232290][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.232290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.232290][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.232290][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.232290][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.232290][ T254] [ 9346.234512][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.234512][ T254] netdev_get_by_index+0x5e/0x80 [ 9346.234512][ T254] fib6_nh_init+0x3d8/0x1580 [ 9346.234512][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9346.234512][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9346.234512][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9346.234512][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9346.234512][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9346.234512][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9346.234512][ T254] addrconf_dad_begin+0x310/0x670 [ 9346.234512][ T254] addrconf_dad_work+0x10b/0xab0 [ 9346.234512][ T254] process_one_work+0x84d/0x18a0 [ 9346.234512][ T254] worker_thread+0x587/0xd30 [ 9346.234512][ T254] kthread+0x28a/0x350 [ 9346.234512][ T254] ret_from_fork+0x31/0x70 [ 9346.234512][ T254] ret_from_fork_asm+0x1a/0x30 [ 9346.234512][ T254] [ 9346.236803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.236803][ T254] netdev_get_by_index+0x5e/0x80 [ 9346.236803][ T254] fib6_nh_init+0x3d8/0x1580 [ 9346.236803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9346.236803][ T254] ip6_route_add+0x1c/0x140 [ 9346.236803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9346.236803][ T254] inet6_addr_add+0x4f8/0xa40 [ 9346.236803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9346.236803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9346.236803][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.236803][ T254] netlink_unicast+0x449/0x710 [ 9346.236803][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.236803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.236803][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.236803][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.236803][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.236803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9346.236803][ T254] [ 9346.239057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.239057][ T254] netdev_get_by_index+0x5e/0x80 [ 9346.239057][ T254] fib6_nh_init+0x3d8/0x1580 [ 9346.239057][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9346.239057][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9346.239057][ T254] ipv6_add_addr+0x411/0x2000 [ 9346.239057][ T254] inet6_addr_add+0x30e/0xa40 [ 9346.239057][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9346.239057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9346.239057][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.239057][ T254] netlink_unicast+0x449/0x710 [ 9346.239057][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.239057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.239057][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.239057][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.239057][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.239057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9346.239057][ T254] [ 9346.241310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.241310][ T254] netdev_get_by_index+0x5e/0x80 [ 9346.241310][ T254] fib6_nh_init+0x3d8/0x1580 [ 9346.241310][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9346.241310][ T254] ip6_route_add+0x1c/0x140 [ 9346.241310][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9346.241310][ T254] addrconf_add_dev+0xe2/0x170 [ 9346.241310][ T254] inet6_addr_add+0x12f/0xa40 [ 9346.241310][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9346.241310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9346.241310][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.241310][ T254] netlink_unicast+0x449/0x710 [ 9346.241310][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.241310][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.241310][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.241310][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.241310][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.241310][ T254] [ 9346.243521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.243521][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9346.243521][ T254] ipv6_find_idev+0x102/0x170 [ 9346.243521][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9346.243521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9346.243521][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.243521][ T254] netlink_unicast+0x449/0x710 [ 9346.243521][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.243521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.243521][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.243521][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.243521][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.243521][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9346.243521][ T254] [ 9346.245263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9346.245263][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9346.245263][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9346.245263][ T254] ipv6_find_idev+0x102/0x170 [ 9346.245263][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9346.245263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9346.245263][ T254] netlink_rcv_skb+0x130/0x360 [ 9346.245263][ T254] netlink_unicast+0x449/0x710 [ 9346.245263][ T254] netlink_sendmsg+0x723/0xbe0 [ 9346.245263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9346.245263][ T254] ___sys_sendmsg+0xee/0x170 [ 9346.245263][ T254] __sys_sendmsg+0xcd/0x170 [ 9346.245263][ T254] do_syscall_64+0xc6/0x1e0 [ 9346.245263][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9346.245263][ T254] [ 9356.487787][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9356.488317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.488317][ T254] dst_init+0x84/0x4a0 [ 9356.488317][ T254] dst_alloc+0x97/0x150 [ 9356.488317][ T254] ip6_dst_alloc+0x23/0x90 [ 9356.488317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9356.488317][ T254] ip6_pol_route+0x56f/0x840 [ 9356.488317][ T254] fib6_rule_lookup+0x334/0x630 [ 9356.488317][ T254] ip6_route_output_flags+0x259/0x480 [ 9356.488317][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9356.488317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9356.488317][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.488317][ T254] netlink_unicast+0x449/0x710 [ 9356.488317][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.488317][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.488317][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.488317][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.488317][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.488317][ T254] [ 9356.490538][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.490538][ T254] netdev_get_by_index+0x5e/0x80 [ 9356.490538][ T254] fib6_nh_init+0x3d8/0x1580 [ 9356.490538][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9356.490538][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9356.490538][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9356.490538][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9356.490538][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9356.490538][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9356.490538][ T254] addrconf_dad_begin+0x310/0x670 [ 9356.490538][ T254] addrconf_dad_work+0x10b/0xab0 [ 9356.490538][ T254] process_one_work+0x84d/0x18a0 [ 9356.490538][ T254] worker_thread+0x587/0xd30 [ 9356.490538][ T254] kthread+0x28a/0x350 [ 9356.490538][ T254] ret_from_fork+0x31/0x70 [ 9356.490538][ T254] ret_from_fork_asm+0x1a/0x30 [ 9356.490538][ T254] [ 9356.492692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.492692][ T254] netdev_get_by_index+0x5e/0x80 [ 9356.492692][ T254] fib6_nh_init+0x3d8/0x1580 [ 9356.492692][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9356.492692][ T254] ip6_route_add+0x1c/0x140 [ 9356.492692][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9356.492692][ T254] inet6_addr_add+0x4f8/0xa40 [ 9356.492692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9356.492692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9356.492692][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.492692][ T254] netlink_unicast+0x449/0x710 [ 9356.492692][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.492692][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.492692][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.492692][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.492692][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.492692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9356.492692][ T254] [ 9356.494959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.494959][ T254] netdev_get_by_index+0x5e/0x80 [ 9356.494959][ T254] fib6_nh_init+0x3d8/0x1580 [ 9356.494959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9356.494959][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9356.494959][ T254] ipv6_add_addr+0x411/0x2000 [ 9356.494959][ T254] inet6_addr_add+0x30e/0xa40 [ 9356.494959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9356.494959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9356.494959][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.494959][ T254] netlink_unicast+0x449/0x710 [ 9356.494959][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.494959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.494959][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.494959][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.494959][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.494959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9356.494959][ T254] [ 9356.497230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.497230][ T254] netdev_get_by_index+0x5e/0x80 [ 9356.497230][ T254] fib6_nh_init+0x3d8/0x1580 [ 9356.497230][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9356.497230][ T254] ip6_route_add+0x1c/0x140 [ 9356.497230][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9356.497230][ T254] addrconf_add_dev+0xe2/0x170 [ 9356.497230][ T254] inet6_addr_add+0x12f/0xa40 [ 9356.497230][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9356.497230][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9356.497230][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.497230][ T254] netlink_unicast+0x449/0x710 [ 9356.497230][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.497230][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.497230][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.497230][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.497230][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.497230][ T254] [ 9356.499450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.499450][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9356.499450][ T254] ipv6_find_idev+0x102/0x170 [ 9356.499450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9356.499450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9356.499450][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.499450][ T254] netlink_unicast+0x449/0x710 [ 9356.499450][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.499450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.499450][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.499450][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.499450][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.499450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9356.499450][ T254] [ 9356.501180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9356.501180][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9356.501180][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9356.501180][ T254] ipv6_find_idev+0x102/0x170 [ 9356.501180][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9356.501180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9356.501180][ T254] netlink_rcv_skb+0x130/0x360 [ 9356.501180][ T254] netlink_unicast+0x449/0x710 [ 9356.501180][ T254] netlink_sendmsg+0x723/0xbe0 [ 9356.501180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9356.501180][ T254] ___sys_sendmsg+0xee/0x170 [ 9356.501180][ T254] __sys_sendmsg+0xcd/0x170 [ 9356.501180][ T254] do_syscall_64+0xc6/0x1e0 [ 9356.501180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9356.501180][ T254] [ 9366.743852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9366.744344][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.744344][ T254] dst_init+0x84/0x4a0 [ 9366.744344][ T254] dst_alloc+0x97/0x150 [ 9366.744344][ T254] ip6_dst_alloc+0x23/0x90 [ 9366.744344][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9366.744344][ T254] ip6_pol_route+0x56f/0x840 [ 9366.744344][ T254] fib6_rule_lookup+0x334/0x630 [ 9366.744344][ T254] ip6_route_output_flags+0x259/0x480 [ 9366.744344][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9366.744344][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9366.744344][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.744344][ T254] netlink_unicast+0x449/0x710 [ 9366.744344][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.744344][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.744344][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.744344][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.744344][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.744344][ T254] [ 9366.746617][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.746617][ T254] netdev_get_by_index+0x5e/0x80 [ 9366.746617][ T254] fib6_nh_init+0x3d8/0x1580 [ 9366.746617][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9366.746617][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9366.746617][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9366.746617][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9366.746617][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9366.746617][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9366.746617][ T254] addrconf_dad_begin+0x310/0x670 [ 9366.746617][ T254] addrconf_dad_work+0x10b/0xab0 [ 9366.746617][ T254] process_one_work+0x84d/0x18a0 [ 9366.746617][ T254] worker_thread+0x587/0xd30 [ 9366.746617][ T254] kthread+0x28a/0x350 [ 9366.746617][ T254] ret_from_fork+0x31/0x70 [ 9366.746617][ T254] ret_from_fork_asm+0x1a/0x30 [ 9366.746617][ T254] [ 9366.748817][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.748817][ T254] netdev_get_by_index+0x5e/0x80 [ 9366.748817][ T254] fib6_nh_init+0x3d8/0x1580 [ 9366.748817][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9366.748817][ T254] ip6_route_add+0x1c/0x140 [ 9366.748817][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9366.748817][ T254] inet6_addr_add+0x4f8/0xa40 [ 9366.748817][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9366.748817][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9366.748817][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.748817][ T254] netlink_unicast+0x449/0x710 [ 9366.748817][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.748817][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.748817][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.748817][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.748817][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.748817][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9366.748817][ T254] [ 9366.751118][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.751118][ T254] netdev_get_by_index+0x5e/0x80 [ 9366.751118][ T254] fib6_nh_init+0x3d8/0x1580 [ 9366.751118][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9366.751118][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9366.751118][ T254] ipv6_add_addr+0x411/0x2000 [ 9366.751118][ T254] inet6_addr_add+0x30e/0xa40 [ 9366.751118][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9366.751118][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9366.751118][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.751118][ T254] netlink_unicast+0x449/0x710 [ 9366.751118][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.751118][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.751118][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.751118][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.751118][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.751118][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9366.751118][ T254] [ 9366.753412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.753412][ T254] netdev_get_by_index+0x5e/0x80 [ 9366.753412][ T254] fib6_nh_init+0x3d8/0x1580 [ 9366.753412][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9366.753412][ T254] ip6_route_add+0x1c/0x140 [ 9366.753412][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9366.753412][ T254] addrconf_add_dev+0xe2/0x170 [ 9366.753412][ T254] inet6_addr_add+0x12f/0xa40 [ 9366.753412][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9366.753412][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9366.753412][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.753412][ T254] netlink_unicast+0x449/0x710 [ 9366.753412][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.753412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.753412][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.753412][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.753412][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.753412][ T254] [ 9366.755677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.755677][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9366.755677][ T254] ipv6_find_idev+0x102/0x170 [ 9366.755677][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9366.755677][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9366.755677][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.755677][ T254] netlink_unicast+0x449/0x710 [ 9366.755677][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.755677][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.755677][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.755677][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.755677][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.755677][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9366.755677][ T254] [ 9366.757444][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9366.757444][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9366.757444][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9366.757444][ T254] ipv6_find_idev+0x102/0x170 [ 9366.757444][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9366.757444][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9366.757444][ T254] netlink_rcv_skb+0x130/0x360 [ 9366.757444][ T254] netlink_unicast+0x449/0x710 [ 9366.757444][ T254] netlink_sendmsg+0x723/0xbe0 [ 9366.757444][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9366.757444][ T254] ___sys_sendmsg+0xee/0x170 [ 9366.757444][ T254] __sys_sendmsg+0xcd/0x170 [ 9366.757444][ T254] do_syscall_64+0xc6/0x1e0 [ 9366.757444][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9366.757444][ T254] [ 9376.999854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9377.000412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.000412][ T254] dst_init+0x84/0x4a0 [ 9377.000412][ T254] dst_alloc+0x97/0x150 [ 9377.000412][ T254] ip6_dst_alloc+0x23/0x90 [ 9377.000412][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9377.000412][ T254] ip6_pol_route+0x56f/0x840 [ 9377.000412][ T254] fib6_rule_lookup+0x334/0x630 [ 9377.000412][ T254] ip6_route_output_flags+0x259/0x480 [ 9377.000412][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9377.000412][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9377.000412][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.000412][ T254] netlink_unicast+0x449/0x710 [ 9377.000412][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.000412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.000412][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.000412][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.000412][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.000412][ T254] [ 9377.002663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.002663][ T254] netdev_get_by_index+0x5e/0x80 [ 9377.002663][ T254] fib6_nh_init+0x3d8/0x1580 [ 9377.002663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9377.002663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9377.002663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9377.002663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9377.002663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9377.002663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9377.002663][ T254] addrconf_dad_begin+0x310/0x670 [ 9377.002663][ T254] addrconf_dad_work+0x10b/0xab0 [ 9377.002663][ T254] process_one_work+0x84d/0x18a0 [ 9377.002663][ T254] worker_thread+0x587/0xd30 [ 9377.002663][ T254] kthread+0x28a/0x350 [ 9377.002663][ T254] ret_from_fork+0x31/0x70 [ 9377.002663][ T254] ret_from_fork_asm+0x1a/0x30 [ 9377.002663][ T254] [ 9377.004975][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.004975][ T254] netdev_get_by_index+0x5e/0x80 [ 9377.004975][ T254] fib6_nh_init+0x3d8/0x1580 [ 9377.004975][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9377.004975][ T254] ip6_route_add+0x1c/0x140 [ 9377.004975][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9377.004975][ T254] inet6_addr_add+0x4f8/0xa40 [ 9377.004975][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9377.004975][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9377.004975][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.004975][ T254] netlink_unicast+0x449/0x710 [ 9377.004975][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.004975][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.004975][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.004975][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.004975][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.004975][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9377.004975][ T254] [ 9377.007216][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.007216][ T254] netdev_get_by_index+0x5e/0x80 [ 9377.007216][ T254] fib6_nh_init+0x3d8/0x1580 [ 9377.007216][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9377.007216][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9377.007216][ T254] ipv6_add_addr+0x411/0x2000 [ 9377.007216][ T254] inet6_addr_add+0x30e/0xa40 [ 9377.007216][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9377.007216][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9377.007216][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.007216][ T254] netlink_unicast+0x449/0x710 [ 9377.007216][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.007216][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.007216][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.007216][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.007216][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.007216][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9377.007216][ T254] [ 9377.009458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.009458][ T254] netdev_get_by_index+0x5e/0x80 [ 9377.009458][ T254] fib6_nh_init+0x3d8/0x1580 [ 9377.009458][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9377.009458][ T254] ip6_route_add+0x1c/0x140 [ 9377.009458][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9377.009458][ T254] addrconf_add_dev+0xe2/0x170 [ 9377.009458][ T254] inet6_addr_add+0x12f/0xa40 [ 9377.009458][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9377.009458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9377.009458][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.009458][ T254] netlink_unicast+0x449/0x710 [ 9377.009458][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.009458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.009458][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.009458][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.009458][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.009458][ T254] [ 9377.011668][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.011668][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9377.011668][ T254] ipv6_find_idev+0x102/0x170 [ 9377.011668][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9377.011668][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9377.011668][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.011668][ T254] netlink_unicast+0x449/0x710 [ 9377.011668][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.011668][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.011668][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.011668][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.011668][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.011668][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9377.011668][ T254] [ 9377.013388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9377.013388][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9377.013388][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9377.013388][ T254] ipv6_find_idev+0x102/0x170 [ 9377.013388][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9377.013388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9377.013388][ T254] netlink_rcv_skb+0x130/0x360 [ 9377.013388][ T254] netlink_unicast+0x449/0x710 [ 9377.013388][ T254] netlink_sendmsg+0x723/0xbe0 [ 9377.013388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9377.013388][ T254] ___sys_sendmsg+0xee/0x170 [ 9377.013388][ T254] __sys_sendmsg+0xcd/0x170 [ 9377.013388][ T254] do_syscall_64+0xc6/0x1e0 [ 9377.013388][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9377.013388][ T254] [ 9387.255872][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9387.256411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.256411][ T254] dst_init+0x84/0x4a0 [ 9387.256411][ T254] dst_alloc+0x97/0x150 [ 9387.256411][ T254] ip6_dst_alloc+0x23/0x90 [ 9387.256411][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9387.256411][ T254] ip6_pol_route+0x56f/0x840 [ 9387.256411][ T254] fib6_rule_lookup+0x334/0x630 [ 9387.256411][ T254] ip6_route_output_flags+0x259/0x480 [ 9387.256411][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9387.256411][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9387.256411][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.256411][ T254] netlink_unicast+0x449/0x710 [ 9387.256411][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.256411][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.256411][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.256411][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.256411][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.256411][ T254] [ 9387.258622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.258622][ T254] netdev_get_by_index+0x5e/0x80 [ 9387.258622][ T254] fib6_nh_init+0x3d8/0x1580 [ 9387.258622][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9387.258622][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9387.258622][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9387.258622][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9387.258622][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9387.258622][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9387.258622][ T254] addrconf_dad_begin+0x310/0x670 [ 9387.258622][ T254] addrconf_dad_work+0x10b/0xab0 [ 9387.258622][ T254] process_one_work+0x84d/0x18a0 [ 9387.258622][ T254] worker_thread+0x587/0xd30 [ 9387.258622][ T254] kthread+0x28a/0x350 [ 9387.258622][ T254] ret_from_fork+0x31/0x70 [ 9387.258622][ T254] ret_from_fork_asm+0x1a/0x30 [ 9387.258622][ T254] [ 9387.260767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.260767][ T254] netdev_get_by_index+0x5e/0x80 [ 9387.260767][ T254] fib6_nh_init+0x3d8/0x1580 [ 9387.260767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9387.260767][ T254] ip6_route_add+0x1c/0x140 [ 9387.260767][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9387.260767][ T254] inet6_addr_add+0x4f8/0xa40 [ 9387.260767][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9387.260767][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9387.260767][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.260767][ T254] netlink_unicast+0x449/0x710 [ 9387.260767][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.260767][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.260767][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.260767][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.260767][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.260767][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9387.260767][ T254] [ 9387.263136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.263136][ T254] netdev_get_by_index+0x5e/0x80 [ 9387.263136][ T254] fib6_nh_init+0x3d8/0x1580 [ 9387.263136][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9387.263136][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9387.263136][ T254] ipv6_add_addr+0x411/0x2000 [ 9387.263136][ T254] inet6_addr_add+0x30e/0xa40 [ 9387.263136][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9387.263136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9387.263136][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.263136][ T254] netlink_unicast+0x449/0x710 [ 9387.263136][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.263136][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.263136][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.263136][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.263136][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.263136][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9387.263136][ T254] [ 9387.265445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.265445][ T254] netdev_get_by_index+0x5e/0x80 [ 9387.265445][ T254] fib6_nh_init+0x3d8/0x1580 [ 9387.265445][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9387.265445][ T254] ip6_route_add+0x1c/0x140 [ 9387.265445][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9387.265445][ T254] addrconf_add_dev+0xe2/0x170 [ 9387.265445][ T254] inet6_addr_add+0x12f/0xa40 [ 9387.265445][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9387.265445][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9387.265445][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.265445][ T254] netlink_unicast+0x449/0x710 [ 9387.265445][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.265445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.265445][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.265445][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.265445][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.265445][ T254] [ 9387.267694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.267694][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9387.267694][ T254] ipv6_find_idev+0x102/0x170 [ 9387.267694][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9387.267694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9387.267694][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.267694][ T254] netlink_unicast+0x449/0x710 [ 9387.267694][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.267694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.267694][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.267694][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.267694][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.267694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9387.267694][ T254] [ 9387.269469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9387.269469][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9387.269469][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9387.269469][ T254] ipv6_find_idev+0x102/0x170 [ 9387.269469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9387.269469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9387.269469][ T254] netlink_rcv_skb+0x130/0x360 [ 9387.269469][ T254] netlink_unicast+0x449/0x710 [ 9387.269469][ T254] netlink_sendmsg+0x723/0xbe0 [ 9387.269469][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9387.269469][ T254] ___sys_sendmsg+0xee/0x170 [ 9387.269469][ T254] __sys_sendmsg+0xcd/0x170 [ 9387.269469][ T254] do_syscall_64+0xc6/0x1e0 [ 9387.269469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9387.269469][ T254] [ 9397.511914][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9397.512470][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.512470][ T254] dst_init+0x84/0x4a0 [ 9397.512470][ T254] dst_alloc+0x97/0x150 [ 9397.512470][ T254] ip6_dst_alloc+0x23/0x90 [ 9397.512470][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9397.512470][ T254] ip6_pol_route+0x56f/0x840 [ 9397.512470][ T254] fib6_rule_lookup+0x334/0x630 [ 9397.512470][ T254] ip6_route_output_flags+0x259/0x480 [ 9397.512470][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9397.512470][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9397.512470][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.512470][ T254] netlink_unicast+0x449/0x710 [ 9397.512470][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.512470][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.512470][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.512470][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.512470][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.512470][ T254] [ 9397.514767][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.514767][ T254] netdev_get_by_index+0x5e/0x80 [ 9397.514767][ T254] fib6_nh_init+0x3d8/0x1580 [ 9397.514767][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9397.514767][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9397.514767][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9397.514767][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9397.514767][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9397.514767][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9397.514767][ T254] addrconf_dad_begin+0x310/0x670 [ 9397.514767][ T254] addrconf_dad_work+0x10b/0xab0 [ 9397.514767][ T254] process_one_work+0x84d/0x18a0 [ 9397.514767][ T254] worker_thread+0x587/0xd30 [ 9397.514767][ T254] kthread+0x28a/0x350 [ 9397.514767][ T254] ret_from_fork+0x31/0x70 [ 9397.514767][ T254] ret_from_fork_asm+0x1a/0x30 [ 9397.514767][ T254] [ 9397.516964][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.516964][ T254] netdev_get_by_index+0x5e/0x80 [ 9397.516964][ T254] fib6_nh_init+0x3d8/0x1580 [ 9397.516964][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9397.516964][ T254] ip6_route_add+0x1c/0x140 [ 9397.516964][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9397.516964][ T254] inet6_addr_add+0x4f8/0xa40 [ 9397.516964][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9397.516964][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9397.516964][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.516964][ T254] netlink_unicast+0x449/0x710 [ 9397.516964][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.516964][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.516964][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.516964][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.516964][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.516964][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9397.516964][ T254] [ 9397.519260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.519260][ T254] netdev_get_by_index+0x5e/0x80 [ 9397.519260][ T254] fib6_nh_init+0x3d8/0x1580 [ 9397.519260][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9397.519260][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9397.519260][ T254] ipv6_add_addr+0x411/0x2000 [ 9397.519260][ T254] inet6_addr_add+0x30e/0xa40 [ 9397.519260][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9397.519260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9397.519260][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.519260][ T254] netlink_unicast+0x449/0x710 [ 9397.519260][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.519260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.519260][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.519260][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.519260][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.519260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9397.519260][ T254] [ 9397.521556][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.521556][ T254] netdev_get_by_index+0x5e/0x80 [ 9397.521556][ T254] fib6_nh_init+0x3d8/0x1580 [ 9397.521556][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9397.521556][ T254] ip6_route_add+0x1c/0x140 [ 9397.521556][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9397.521556][ T254] addrconf_add_dev+0xe2/0x170 [ 9397.521556][ T254] inet6_addr_add+0x12f/0xa40 [ 9397.521556][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9397.521556][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9397.521556][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.521556][ T254] netlink_unicast+0x449/0x710 [ 9397.521556][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.521556][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.521556][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.521556][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.521556][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.521556][ T254] [ 9397.523828][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.523828][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9397.523828][ T254] ipv6_find_idev+0x102/0x170 [ 9397.523828][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9397.523828][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9397.523828][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.523828][ T254] netlink_unicast+0x449/0x710 [ 9397.523828][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.523828][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.523828][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.523828][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.523828][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.523828][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9397.523828][ T254] [ 9397.525597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9397.525597][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9397.525597][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9397.525597][ T254] ipv6_find_idev+0x102/0x170 [ 9397.525597][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9397.525597][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9397.525597][ T254] netlink_rcv_skb+0x130/0x360 [ 9397.525597][ T254] netlink_unicast+0x449/0x710 [ 9397.525597][ T254] netlink_sendmsg+0x723/0xbe0 [ 9397.525597][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9397.525597][ T254] ___sys_sendmsg+0xee/0x170 [ 9397.525597][ T254] __sys_sendmsg+0xcd/0x170 [ 9397.525597][ T254] do_syscall_64+0xc6/0x1e0 [ 9397.525597][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9397.525597][ T254] [ 9407.767809][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9407.768400][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.768400][ T254] dst_init+0x84/0x4a0 [ 9407.768400][ T254] dst_alloc+0x97/0x150 [ 9407.768400][ T254] ip6_dst_alloc+0x23/0x90 [ 9407.768400][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9407.768400][ T254] ip6_pol_route+0x56f/0x840 [ 9407.768400][ T254] fib6_rule_lookup+0x334/0x630 [ 9407.768400][ T254] ip6_route_output_flags+0x259/0x480 [ 9407.768400][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9407.768400][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9407.768400][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.768400][ T254] netlink_unicast+0x449/0x710 [ 9407.768400][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.768400][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.768400][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.768400][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.768400][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.768400][ T254] [ 9407.770695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.770695][ T254] netdev_get_by_index+0x5e/0x80 [ 9407.770695][ T254] fib6_nh_init+0x3d8/0x1580 [ 9407.770695][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9407.770695][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9407.770695][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9407.770695][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9407.770695][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9407.770695][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9407.770695][ T254] addrconf_dad_begin+0x310/0x670 [ 9407.770695][ T254] addrconf_dad_work+0x10b/0xab0 [ 9407.770695][ T254] process_one_work+0x84d/0x18a0 [ 9407.770695][ T254] worker_thread+0x587/0xd30 [ 9407.770695][ T254] kthread+0x28a/0x350 [ 9407.770695][ T254] ret_from_fork+0x31/0x70 [ 9407.770695][ T254] ret_from_fork_asm+0x1a/0x30 [ 9407.770695][ T254] [ 9407.772914][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.772914][ T254] netdev_get_by_index+0x5e/0x80 [ 9407.772914][ T254] fib6_nh_init+0x3d8/0x1580 [ 9407.772914][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9407.772914][ T254] ip6_route_add+0x1c/0x140 [ 9407.772914][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9407.772914][ T254] inet6_addr_add+0x4f8/0xa40 [ 9407.772914][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9407.772914][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9407.772914][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.772914][ T254] netlink_unicast+0x449/0x710 [ 9407.772914][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.772914][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.772914][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.772914][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.772914][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.772914][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9407.772914][ T254] [ 9407.775254][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.775254][ T254] netdev_get_by_index+0x5e/0x80 [ 9407.775254][ T254] fib6_nh_init+0x3d8/0x1580 [ 9407.775254][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9407.775254][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9407.775254][ T254] ipv6_add_addr+0x411/0x2000 [ 9407.775254][ T254] inet6_addr_add+0x30e/0xa40 [ 9407.775254][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9407.775254][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9407.775254][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.775254][ T254] netlink_unicast+0x449/0x710 [ 9407.775254][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.775254][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.775254][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.775254][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.775254][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.775254][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9407.775254][ T254] [ 9407.777594][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.777594][ T254] netdev_get_by_index+0x5e/0x80 [ 9407.777594][ T254] fib6_nh_init+0x3d8/0x1580 [ 9407.777594][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9407.777594][ T254] ip6_route_add+0x1c/0x140 [ 9407.777594][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9407.777594][ T254] addrconf_add_dev+0xe2/0x170 [ 9407.777594][ T254] inet6_addr_add+0x12f/0xa40 [ 9407.777594][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9407.777594][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9407.777594][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.777594][ T254] netlink_unicast+0x449/0x710 [ 9407.777594][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.777594][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.777594][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.777594][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.777594][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.777594][ T254] [ 9407.779877][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.779877][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9407.779877][ T254] ipv6_find_idev+0x102/0x170 [ 9407.779877][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9407.779877][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9407.779877][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.779877][ T254] netlink_unicast+0x449/0x710 [ 9407.779877][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.779877][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.779877][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.779877][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.779877][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.779877][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9407.779877][ T254] [ 9407.781671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9407.781671][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9407.781671][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9407.781671][ T254] ipv6_find_idev+0x102/0x170 [ 9407.781671][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9407.781671][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9407.781671][ T254] netlink_rcv_skb+0x130/0x360 [ 9407.781671][ T254] netlink_unicast+0x449/0x710 [ 9407.781671][ T254] netlink_sendmsg+0x723/0xbe0 [ 9407.781671][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9407.781671][ T254] ___sys_sendmsg+0xee/0x170 [ 9407.781671][ T254] __sys_sendmsg+0xcd/0x170 [ 9407.781671][ T254] do_syscall_64+0xc6/0x1e0 [ 9407.781671][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9407.781671][ T254] [ 9417.983842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9417.984466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.984466][ T254] dst_init+0x84/0x4a0 [ 9417.984466][ T254] dst_alloc+0x97/0x150 [ 9417.984466][ T254] ip6_dst_alloc+0x23/0x90 [ 9417.984466][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9417.984466][ T254] ip6_pol_route+0x56f/0x840 [ 9417.984466][ T254] fib6_rule_lookup+0x334/0x630 [ 9417.984466][ T254] ip6_route_output_flags+0x259/0x480 [ 9417.984466][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9417.984466][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9417.984466][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.984466][ T254] netlink_unicast+0x449/0x710 [ 9417.984466][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.984466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.984466][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.984466][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.984466][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.984466][ T254] [ 9417.986746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.986746][ T254] netdev_get_by_index+0x5e/0x80 [ 9417.986746][ T254] fib6_nh_init+0x3d8/0x1580 [ 9417.986746][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9417.986746][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9417.986746][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9417.986746][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9417.986746][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9417.986746][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9417.986746][ T254] addrconf_dad_begin+0x310/0x670 [ 9417.986746][ T254] addrconf_dad_work+0x10b/0xab0 [ 9417.986746][ T254] process_one_work+0x84d/0x18a0 [ 9417.986746][ T254] worker_thread+0x587/0xd30 [ 9417.986746][ T254] kthread+0x28a/0x350 [ 9417.986746][ T254] ret_from_fork+0x31/0x70 [ 9417.986746][ T254] ret_from_fork_asm+0x1a/0x30 [ 9417.986746][ T254] [ 9417.988968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.988968][ T254] netdev_get_by_index+0x5e/0x80 [ 9417.988968][ T254] fib6_nh_init+0x3d8/0x1580 [ 9417.988968][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9417.988968][ T254] ip6_route_add+0x1c/0x140 [ 9417.988968][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9417.988968][ T254] inet6_addr_add+0x4f8/0xa40 [ 9417.988968][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9417.988968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9417.988968][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.988968][ T254] netlink_unicast+0x449/0x710 [ 9417.988968][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.988968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.988968][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.988968][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.988968][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.988968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9417.988968][ T254] [ 9417.991299][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.991299][ T254] netdev_get_by_index+0x5e/0x80 [ 9417.991299][ T254] fib6_nh_init+0x3d8/0x1580 [ 9417.991299][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9417.991299][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9417.991299][ T254] ipv6_add_addr+0x411/0x2000 [ 9417.991299][ T254] inet6_addr_add+0x30e/0xa40 [ 9417.991299][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9417.991299][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9417.991299][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.991299][ T254] netlink_unicast+0x449/0x710 [ 9417.991299][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.991299][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.991299][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.991299][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.991299][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.991299][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9417.991299][ T254] [ 9417.993624][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.993624][ T254] netdev_get_by_index+0x5e/0x80 [ 9417.993624][ T254] fib6_nh_init+0x3d8/0x1580 [ 9417.993624][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9417.993624][ T254] ip6_route_add+0x1c/0x140 [ 9417.993624][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9417.993624][ T254] addrconf_add_dev+0xe2/0x170 [ 9417.993624][ T254] inet6_addr_add+0x12f/0xa40 [ 9417.993624][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9417.993624][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9417.993624][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.993624][ T254] netlink_unicast+0x449/0x710 [ 9417.993624][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.993624][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.993624][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.993624][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.993624][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.993624][ T254] [ 9417.995935][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.995935][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9417.995935][ T254] ipv6_find_idev+0x102/0x170 [ 9417.995935][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9417.995935][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9417.995935][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.995935][ T254] netlink_unicast+0x449/0x710 [ 9417.995935][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.995935][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.995935][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.995935][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.995935][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.995935][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9417.995935][ T254] [ 9417.997728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9417.997728][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9417.997728][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9417.997728][ T254] ipv6_find_idev+0x102/0x170 [ 9417.997728][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9417.997728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9417.997728][ T254] netlink_rcv_skb+0x130/0x360 [ 9417.997728][ T254] netlink_unicast+0x449/0x710 [ 9417.997728][ T254] netlink_sendmsg+0x723/0xbe0 [ 9417.997728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9417.997728][ T254] ___sys_sendmsg+0xee/0x170 [ 9417.997728][ T254] __sys_sendmsg+0xcd/0x170 [ 9417.997728][ T254] do_syscall_64+0xc6/0x1e0 [ 9417.997728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9417.997728][ T254] [ 9428.247865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9428.248454][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.248454][ T254] dst_init+0x84/0x4a0 [ 9428.248454][ T254] dst_alloc+0x97/0x150 [ 9428.248454][ T254] ip6_dst_alloc+0x23/0x90 [ 9428.248454][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9428.248454][ T254] ip6_pol_route+0x56f/0x840 [ 9428.248454][ T254] fib6_rule_lookup+0x334/0x630 [ 9428.248454][ T254] ip6_route_output_flags+0x259/0x480 [ 9428.248454][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9428.248454][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9428.248454][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.248454][ T254] netlink_unicast+0x449/0x710 [ 9428.248454][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.248454][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.248454][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.248454][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.248454][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.248454][ T254] [ 9428.250738][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.250738][ T254] netdev_get_by_index+0x5e/0x80 [ 9428.250738][ T254] fib6_nh_init+0x3d8/0x1580 [ 9428.250738][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9428.250738][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9428.250738][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9428.250738][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9428.250738][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9428.250738][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9428.250738][ T254] addrconf_dad_begin+0x310/0x670 [ 9428.250738][ T254] addrconf_dad_work+0x10b/0xab0 [ 9428.250738][ T254] process_one_work+0x84d/0x18a0 [ 9428.250738][ T254] worker_thread+0x587/0xd30 [ 9428.250738][ T254] kthread+0x28a/0x350 [ 9428.250738][ T254] ret_from_fork+0x31/0x70 [ 9428.250738][ T254] ret_from_fork_asm+0x1a/0x30 [ 9428.250738][ T254] [ 9428.252956][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.252956][ T254] netdev_get_by_index+0x5e/0x80 [ 9428.252956][ T254] fib6_nh_init+0x3d8/0x1580 [ 9428.252956][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9428.252956][ T254] ip6_route_add+0x1c/0x140 [ 9428.252956][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9428.252956][ T254] inet6_addr_add+0x4f8/0xa40 [ 9428.252956][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9428.252956][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9428.252956][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.252956][ T254] netlink_unicast+0x449/0x710 [ 9428.252956][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.252956][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.252956][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.252956][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.252956][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.252956][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9428.252956][ T254] [ 9428.255396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.255396][ T254] netdev_get_by_index+0x5e/0x80 [ 9428.255396][ T254] fib6_nh_init+0x3d8/0x1580 [ 9428.255396][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9428.255396][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9428.255396][ T254] ipv6_add_addr+0x411/0x2000 [ 9428.255396][ T254] inet6_addr_add+0x30e/0xa40 [ 9428.255396][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9428.255396][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9428.255396][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.255396][ T254] netlink_unicast+0x449/0x710 [ 9428.255396][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.255396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.255396][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.255396][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.255396][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.255396][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9428.255396][ T254] [ 9428.257718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.257718][ T254] netdev_get_by_index+0x5e/0x80 [ 9428.257718][ T254] fib6_nh_init+0x3d8/0x1580 [ 9428.257718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9428.257718][ T254] ip6_route_add+0x1c/0x140 [ 9428.257718][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9428.257718][ T254] addrconf_add_dev+0xe2/0x170 [ 9428.257718][ T254] inet6_addr_add+0x12f/0xa40 [ 9428.257718][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9428.257718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9428.257718][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.257718][ T254] netlink_unicast+0x449/0x710 [ 9428.257718][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.257718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.257718][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.257718][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.257718][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.257718][ T254] [ 9428.259999][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.259999][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9428.259999][ T254] ipv6_find_idev+0x102/0x170 [ 9428.259999][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9428.259999][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9428.259999][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.259999][ T254] netlink_unicast+0x449/0x710 [ 9428.259999][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.259999][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.259999][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.259999][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.259999][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.259999][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9428.259999][ T254] [ 9428.261789][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9428.261789][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9428.261789][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9428.261789][ T254] ipv6_find_idev+0x102/0x170 [ 9428.261789][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9428.261789][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9428.261789][ T254] netlink_rcv_skb+0x130/0x360 [ 9428.261789][ T254] netlink_unicast+0x449/0x710 [ 9428.261789][ T254] netlink_sendmsg+0x723/0xbe0 [ 9428.261789][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9428.261789][ T254] ___sys_sendmsg+0xee/0x170 [ 9428.261789][ T254] __sys_sendmsg+0xcd/0x170 [ 9428.261789][ T254] do_syscall_64+0xc6/0x1e0 [ 9428.261789][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9428.261789][ T254] [ 9438.335971][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9438.336517][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.336517][ T254] dst_init+0x84/0x4a0 [ 9438.336517][ T254] dst_alloc+0x97/0x150 [ 9438.336517][ T254] ip6_dst_alloc+0x23/0x90 [ 9438.336517][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9438.336517][ T254] ip6_pol_route+0x56f/0x840 [ 9438.336517][ T254] fib6_rule_lookup+0x334/0x630 [ 9438.336517][ T254] ip6_route_output_flags+0x259/0x480 [ 9438.336517][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9438.336517][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9438.336517][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.336517][ T254] netlink_unicast+0x449/0x710 [ 9438.336517][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.336517][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.336517][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.336517][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.336517][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.336517][ T254] [ 9438.338783][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.338783][ T254] netdev_get_by_index+0x5e/0x80 [ 9438.338783][ T254] fib6_nh_init+0x3d8/0x1580 [ 9438.338783][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9438.338783][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9438.338783][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9438.338783][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9438.338783][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9438.338783][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9438.338783][ T254] addrconf_dad_begin+0x310/0x670 [ 9438.338783][ T254] addrconf_dad_work+0x10b/0xab0 [ 9438.338783][ T254] process_one_work+0x84d/0x18a0 [ 9438.338783][ T254] worker_thread+0x587/0xd30 [ 9438.338783][ T254] kthread+0x28a/0x350 [ 9438.338783][ T254] ret_from_fork+0x31/0x70 [ 9438.338783][ T254] ret_from_fork_asm+0x1a/0x30 [ 9438.338783][ T254] [ 9438.340977][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.340977][ T254] netdev_get_by_index+0x5e/0x80 [ 9438.340977][ T254] fib6_nh_init+0x3d8/0x1580 [ 9438.340977][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9438.340977][ T254] ip6_route_add+0x1c/0x140 [ 9438.340977][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9438.340977][ T254] inet6_addr_add+0x4f8/0xa40 [ 9438.340977][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9438.340977][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9438.340977][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.340977][ T254] netlink_unicast+0x449/0x710 [ 9438.340977][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.340977][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.340977][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.340977][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.340977][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.340977][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9438.340977][ T254] [ 9438.343290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.343290][ T254] netdev_get_by_index+0x5e/0x80 [ 9438.343290][ T254] fib6_nh_init+0x3d8/0x1580 [ 9438.343290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9438.343290][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9438.343290][ T254] ipv6_add_addr+0x411/0x2000 [ 9438.343290][ T254] inet6_addr_add+0x30e/0xa40 [ 9438.343290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9438.343290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9438.343290][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.343290][ T254] netlink_unicast+0x449/0x710 [ 9438.343290][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.343290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.343290][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.343290][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.343290][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.343290][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9438.343290][ T254] [ 9438.345599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.345599][ T254] netdev_get_by_index+0x5e/0x80 [ 9438.345599][ T254] fib6_nh_init+0x3d8/0x1580 [ 9438.345599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9438.345599][ T254] ip6_route_add+0x1c/0x140 [ 9438.345599][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9438.345599][ T254] addrconf_add_dev+0xe2/0x170 [ 9438.345599][ T254] inet6_addr_add+0x12f/0xa40 [ 9438.345599][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9438.345599][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9438.345599][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.345599][ T254] netlink_unicast+0x449/0x710 [ 9438.345599][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.345599][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.345599][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.345599][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.345599][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.345599][ T254] [ 9438.348006][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.348006][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9438.348006][ T254] ipv6_find_idev+0x102/0x170 [ 9438.348006][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9438.348006][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9438.348006][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.348006][ T254] netlink_unicast+0x449/0x710 [ 9438.348006][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.348006][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.348006][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.348006][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.348006][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.348006][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9438.348006][ T254] [ 9438.349770][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9438.349770][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9438.349770][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9438.349770][ T254] ipv6_find_idev+0x102/0x170 [ 9438.349770][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9438.349770][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9438.349770][ T254] netlink_rcv_skb+0x130/0x360 [ 9438.349770][ T254] netlink_unicast+0x449/0x710 [ 9438.349770][ T254] netlink_sendmsg+0x723/0xbe0 [ 9438.349770][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9438.349770][ T254] ___sys_sendmsg+0xee/0x170 [ 9438.349770][ T254] __sys_sendmsg+0xcd/0x170 [ 9438.349770][ T254] do_syscall_64+0xc6/0x1e0 [ 9438.349770][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9438.349770][ T254] [ 9448.591861][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9448.592416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.592416][ T254] dst_init+0x84/0x4a0 [ 9448.592416][ T254] dst_alloc+0x97/0x150 [ 9448.592416][ T254] ip6_dst_alloc+0x23/0x90 [ 9448.592416][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9448.592416][ T254] ip6_pol_route+0x56f/0x840 [ 9448.592416][ T254] fib6_rule_lookup+0x334/0x630 [ 9448.592416][ T254] ip6_route_output_flags+0x259/0x480 [ 9448.592416][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9448.592416][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9448.592416][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.592416][ T254] netlink_unicast+0x449/0x710 [ 9448.592416][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.592416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.592416][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.592416][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.592416][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.592416][ T254] [ 9448.594687][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.594687][ T254] netdev_get_by_index+0x5e/0x80 [ 9448.594687][ T254] fib6_nh_init+0x3d8/0x1580 [ 9448.594687][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9448.594687][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9448.594687][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9448.594687][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9448.594687][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9448.594687][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9448.594687][ T254] addrconf_dad_begin+0x310/0x670 [ 9448.594687][ T254] addrconf_dad_work+0x10b/0xab0 [ 9448.594687][ T254] process_one_work+0x84d/0x18a0 [ 9448.594687][ T254] worker_thread+0x587/0xd30 [ 9448.594687][ T254] kthread+0x28a/0x350 [ 9448.594687][ T254] ret_from_fork+0x31/0x70 [ 9448.594687][ T254] ret_from_fork_asm+0x1a/0x30 [ 9448.594687][ T254] [ 9448.596893][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.596893][ T254] netdev_get_by_index+0x5e/0x80 [ 9448.596893][ T254] fib6_nh_init+0x3d8/0x1580 [ 9448.596893][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9448.596893][ T254] ip6_route_add+0x1c/0x140 [ 9448.596893][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9448.596893][ T254] inet6_addr_add+0x4f8/0xa40 [ 9448.596893][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9448.596893][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9448.596893][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.596893][ T254] netlink_unicast+0x449/0x710 [ 9448.596893][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.596893][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.596893][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.596893][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.596893][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.596893][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9448.596893][ T254] [ 9448.599185][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.599185][ T254] netdev_get_by_index+0x5e/0x80 [ 9448.599185][ T254] fib6_nh_init+0x3d8/0x1580 [ 9448.599185][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9448.599185][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9448.599185][ T254] ipv6_add_addr+0x411/0x2000 [ 9448.599185][ T254] inet6_addr_add+0x30e/0xa40 [ 9448.599185][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9448.599185][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9448.599185][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.599185][ T254] netlink_unicast+0x449/0x710 [ 9448.599185][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.599185][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.599185][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.599185][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.599185][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.599185][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9448.599185][ T254] [ 9448.601480][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.601480][ T254] netdev_get_by_index+0x5e/0x80 [ 9448.601480][ T254] fib6_nh_init+0x3d8/0x1580 [ 9448.601480][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9448.601480][ T254] ip6_route_add+0x1c/0x140 [ 9448.601480][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9448.601480][ T254] addrconf_add_dev+0xe2/0x170 [ 9448.601480][ T254] inet6_addr_add+0x12f/0xa40 [ 9448.601480][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9448.601480][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9448.601480][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.601480][ T254] netlink_unicast+0x449/0x710 [ 9448.601480][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.601480][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.601480][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.601480][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.601480][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.601480][ T254] [ 9448.603731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.603731][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9448.603731][ T254] ipv6_find_idev+0x102/0x170 [ 9448.603731][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9448.603731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9448.603731][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.603731][ T254] netlink_unicast+0x449/0x710 [ 9448.603731][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.603731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.603731][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.603731][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.603731][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.603731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9448.603731][ T254] [ 9448.605501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9448.605501][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9448.605501][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9448.605501][ T254] ipv6_find_idev+0x102/0x170 [ 9448.605501][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9448.605501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9448.605501][ T254] netlink_rcv_skb+0x130/0x360 [ 9448.605501][ T254] netlink_unicast+0x449/0x710 [ 9448.605501][ T254] netlink_sendmsg+0x723/0xbe0 [ 9448.605501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9448.605501][ T254] ___sys_sendmsg+0xee/0x170 [ 9448.605501][ T254] __sys_sendmsg+0xcd/0x170 [ 9448.605501][ T254] do_syscall_64+0xc6/0x1e0 [ 9448.605501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9448.605501][ T254] [ 9458.847842][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9458.848376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.848376][ T254] dst_init+0x84/0x4a0 [ 9458.848376][ T254] dst_alloc+0x97/0x150 [ 9458.848376][ T254] ip6_dst_alloc+0x23/0x90 [ 9458.848376][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9458.848376][ T254] ip6_pol_route+0x56f/0x840 [ 9458.848376][ T254] fib6_rule_lookup+0x334/0x630 [ 9458.848376][ T254] ip6_route_output_flags+0x259/0x480 [ 9458.848376][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9458.848376][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9458.848376][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.848376][ T254] netlink_unicast+0x449/0x710 [ 9458.848376][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.848376][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.848376][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.848376][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.848376][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.848376][ T254] [ 9458.850607][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.850607][ T254] netdev_get_by_index+0x5e/0x80 [ 9458.850607][ T254] fib6_nh_init+0x3d8/0x1580 [ 9458.850607][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9458.850607][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9458.850607][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9458.850607][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9458.850607][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9458.850607][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9458.850607][ T254] addrconf_dad_begin+0x310/0x670 [ 9458.850607][ T254] addrconf_dad_work+0x10b/0xab0 [ 9458.850607][ T254] process_one_work+0x84d/0x18a0 [ 9458.850607][ T254] worker_thread+0x587/0xd30 [ 9458.850607][ T254] kthread+0x28a/0x350 [ 9458.850607][ T254] ret_from_fork+0x31/0x70 [ 9458.850607][ T254] ret_from_fork_asm+0x1a/0x30 [ 9458.850607][ T254] [ 9458.852757][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.852757][ T254] netdev_get_by_index+0x5e/0x80 [ 9458.852757][ T254] fib6_nh_init+0x3d8/0x1580 [ 9458.852757][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9458.852757][ T254] ip6_route_add+0x1c/0x140 [ 9458.852757][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9458.852757][ T254] inet6_addr_add+0x4f8/0xa40 [ 9458.852757][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9458.852757][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9458.852757][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.852757][ T254] netlink_unicast+0x449/0x710 [ 9458.852757][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.852757][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.852757][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.852757][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.852757][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.852757][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9458.852757][ T254] [ 9458.855131][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.855131][ T254] netdev_get_by_index+0x5e/0x80 [ 9458.855131][ T254] fib6_nh_init+0x3d8/0x1580 [ 9458.855131][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9458.855131][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9458.855131][ T254] ipv6_add_addr+0x411/0x2000 [ 9458.855131][ T254] inet6_addr_add+0x30e/0xa40 [ 9458.855131][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9458.855131][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9458.855131][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.855131][ T254] netlink_unicast+0x449/0x710 [ 9458.855131][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.855131][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.855131][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.855131][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.855131][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.855131][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9458.855131][ T254] [ 9458.857442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.857442][ T254] netdev_get_by_index+0x5e/0x80 [ 9458.857442][ T254] fib6_nh_init+0x3d8/0x1580 [ 9458.857442][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9458.857442][ T254] ip6_route_add+0x1c/0x140 [ 9458.857442][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9458.857442][ T254] addrconf_add_dev+0xe2/0x170 [ 9458.857442][ T254] inet6_addr_add+0x12f/0xa40 [ 9458.857442][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9458.857442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9458.857442][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.857442][ T254] netlink_unicast+0x449/0x710 [ 9458.857442][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.857442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.857442][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.857442][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.857442][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.857442][ T254] [ 9458.859713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.859713][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9458.859713][ T254] ipv6_find_idev+0x102/0x170 [ 9458.859713][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9458.859713][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9458.859713][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.859713][ T254] netlink_unicast+0x449/0x710 [ 9458.859713][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.859713][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.859713][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.859713][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.859713][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.859713][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9458.859713][ T254] [ 9458.861472][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9458.861472][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9458.861472][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9458.861472][ T254] ipv6_find_idev+0x102/0x170 [ 9458.861472][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9458.861472][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9458.861472][ T254] netlink_rcv_skb+0x130/0x360 [ 9458.861472][ T254] netlink_unicast+0x449/0x710 [ 9458.861472][ T254] netlink_sendmsg+0x723/0xbe0 [ 9458.861472][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9458.861472][ T254] ___sys_sendmsg+0xee/0x170 [ 9458.861472][ T254] __sys_sendmsg+0xcd/0x170 [ 9458.861472][ T254] do_syscall_64+0xc6/0x1e0 [ 9458.861472][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9458.861472][ T254] [ 9469.103874][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9469.104421][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.104421][ T254] dst_init+0x84/0x4a0 [ 9469.104421][ T254] dst_alloc+0x97/0x150 [ 9469.104421][ T254] ip6_dst_alloc+0x23/0x90 [ 9469.104421][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9469.104421][ T254] ip6_pol_route+0x56f/0x840 [ 9469.104421][ T254] fib6_rule_lookup+0x334/0x630 [ 9469.104421][ T254] ip6_route_output_flags+0x259/0x480 [ 9469.104421][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9469.104421][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9469.104421][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.104421][ T254] netlink_unicast+0x449/0x710 [ 9469.104421][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.104421][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.104421][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.104421][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.104421][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.104421][ T254] [ 9469.106682][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.106682][ T254] netdev_get_by_index+0x5e/0x80 [ 9469.106682][ T254] fib6_nh_init+0x3d8/0x1580 [ 9469.106682][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9469.106682][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9469.106682][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9469.106682][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9469.106682][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9469.106682][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9469.106682][ T254] addrconf_dad_begin+0x310/0x670 [ 9469.106682][ T254] addrconf_dad_work+0x10b/0xab0 [ 9469.106682][ T254] process_one_work+0x84d/0x18a0 [ 9469.106682][ T254] worker_thread+0x587/0xd30 [ 9469.106682][ T254] kthread+0x28a/0x350 [ 9469.106682][ T254] ret_from_fork+0x31/0x70 [ 9469.106682][ T254] ret_from_fork_asm+0x1a/0x30 [ 9469.106682][ T254] [ 9469.108875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.108875][ T254] netdev_get_by_index+0x5e/0x80 [ 9469.108875][ T254] fib6_nh_init+0x3d8/0x1580 [ 9469.108875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9469.108875][ T254] ip6_route_add+0x1c/0x140 [ 9469.108875][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9469.108875][ T254] inet6_addr_add+0x4f8/0xa40 [ 9469.108875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9469.108875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9469.108875][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.108875][ T254] netlink_unicast+0x449/0x710 [ 9469.108875][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.108875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.108875][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.108875][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.108875][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.108875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9469.108875][ T254] [ 9469.111170][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.111170][ T254] netdev_get_by_index+0x5e/0x80 [ 9469.111170][ T254] fib6_nh_init+0x3d8/0x1580 [ 9469.111170][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9469.111170][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9469.111170][ T254] ipv6_add_addr+0x411/0x2000 [ 9469.111170][ T254] inet6_addr_add+0x30e/0xa40 [ 9469.111170][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9469.111170][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9469.111170][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.111170][ T254] netlink_unicast+0x449/0x710 [ 9469.111170][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.111170][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.111170][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.111170][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.111170][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.111170][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9469.111170][ T254] [ 9469.113460][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.113460][ T254] netdev_get_by_index+0x5e/0x80 [ 9469.113460][ T254] fib6_nh_init+0x3d8/0x1580 [ 9469.113460][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9469.113460][ T254] ip6_route_add+0x1c/0x140 [ 9469.113460][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9469.113460][ T254] addrconf_add_dev+0xe2/0x170 [ 9469.113460][ T254] inet6_addr_add+0x12f/0xa40 [ 9469.113460][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9469.113460][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9469.113460][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.113460][ T254] netlink_unicast+0x449/0x710 [ 9469.113460][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.113460][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.113460][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.113460][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.113460][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.113460][ T254] [ 9469.115719][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.115719][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9469.115719][ T254] ipv6_find_idev+0x102/0x170 [ 9469.115719][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9469.115719][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9469.115719][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.115719][ T254] netlink_unicast+0x449/0x710 [ 9469.115719][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.115719][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.115719][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.115719][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.115719][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.115719][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9469.115719][ T254] [ 9469.117481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9469.117481][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9469.117481][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9469.117481][ T254] ipv6_find_idev+0x102/0x170 [ 9469.117481][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9469.117481][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9469.117481][ T254] netlink_rcv_skb+0x130/0x360 [ 9469.117481][ T254] netlink_unicast+0x449/0x710 [ 9469.117481][ T254] netlink_sendmsg+0x723/0xbe0 [ 9469.117481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9469.117481][ T254] ___sys_sendmsg+0xee/0x170 [ 9469.117481][ T254] __sys_sendmsg+0xcd/0x170 [ 9469.117481][ T254] do_syscall_64+0xc6/0x1e0 [ 9469.117481][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9469.117481][ T254] [ 9479.271787][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9479.272352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.272352][ T254] dst_init+0x84/0x4a0 [ 9479.272352][ T254] dst_alloc+0x97/0x150 [ 9479.272352][ T254] ip6_dst_alloc+0x23/0x90 [ 9479.272352][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9479.272352][ T254] ip6_pol_route+0x56f/0x840 [ 9479.272352][ T254] fib6_rule_lookup+0x334/0x630 [ 9479.272352][ T254] ip6_route_output_flags+0x259/0x480 [ 9479.272352][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9479.272352][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9479.272352][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.272352][ T254] netlink_unicast+0x449/0x710 [ 9479.272352][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.272352][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.272352][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.272352][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.272352][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.272352][ T254] [ 9479.274663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.274663][ T254] netdev_get_by_index+0x5e/0x80 [ 9479.274663][ T254] fib6_nh_init+0x3d8/0x1580 [ 9479.274663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9479.274663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9479.274663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9479.274663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9479.274663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9479.274663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9479.274663][ T254] addrconf_dad_begin+0x310/0x670 [ 9479.274663][ T254] addrconf_dad_work+0x10b/0xab0 [ 9479.274663][ T254] process_one_work+0x84d/0x18a0 [ 9479.274663][ T254] worker_thread+0x587/0xd30 [ 9479.274663][ T254] kthread+0x28a/0x350 [ 9479.274663][ T254] ret_from_fork+0x31/0x70 [ 9479.274663][ T254] ret_from_fork_asm+0x1a/0x30 [ 9479.274663][ T254] [ 9479.276884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.276884][ T254] netdev_get_by_index+0x5e/0x80 [ 9479.276884][ T254] fib6_nh_init+0x3d8/0x1580 [ 9479.276884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9479.276884][ T254] ip6_route_add+0x1c/0x140 [ 9479.276884][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9479.276884][ T254] inet6_addr_add+0x4f8/0xa40 [ 9479.276884][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9479.276884][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9479.276884][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.276884][ T254] netlink_unicast+0x449/0x710 [ 9479.276884][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.276884][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.276884][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.276884][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.276884][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.276884][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9479.276884][ T254] [ 9479.279196][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.279196][ T254] netdev_get_by_index+0x5e/0x80 [ 9479.279196][ T254] fib6_nh_init+0x3d8/0x1580 [ 9479.279196][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9479.279196][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9479.279196][ T254] ipv6_add_addr+0x411/0x2000 [ 9479.279196][ T254] inet6_addr_add+0x30e/0xa40 [ 9479.279196][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9479.279196][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9479.279196][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.279196][ T254] netlink_unicast+0x449/0x710 [ 9479.279196][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.279196][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.279196][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.279196][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.279196][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.279196][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9479.279196][ T254] [ 9479.281527][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.281527][ T254] netdev_get_by_index+0x5e/0x80 [ 9479.281527][ T254] fib6_nh_init+0x3d8/0x1580 [ 9479.281527][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9479.281527][ T254] ip6_route_add+0x1c/0x140 [ 9479.281527][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9479.281527][ T254] addrconf_add_dev+0xe2/0x170 [ 9479.281527][ T254] inet6_addr_add+0x12f/0xa40 [ 9479.281527][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9479.281527][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9479.281527][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.281527][ T254] netlink_unicast+0x449/0x710 [ 9479.281527][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.281527][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.281527][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.281527][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.281527][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.281527][ T254] [ 9479.283818][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.283818][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9479.283818][ T254] ipv6_find_idev+0x102/0x170 [ 9479.283818][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9479.283818][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9479.283818][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.283818][ T254] netlink_unicast+0x449/0x710 [ 9479.283818][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.283818][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.283818][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.283818][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.283818][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.283818][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9479.283818][ T254] [ 9479.285609][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9479.285609][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9479.285609][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9479.285609][ T254] ipv6_find_idev+0x102/0x170 [ 9479.285609][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9479.285609][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9479.285609][ T254] netlink_rcv_skb+0x130/0x360 [ 9479.285609][ T254] netlink_unicast+0x449/0x710 [ 9479.285609][ T254] netlink_sendmsg+0x723/0xbe0 [ 9479.285609][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9479.285609][ T254] ___sys_sendmsg+0xee/0x170 [ 9479.285609][ T254] __sys_sendmsg+0xcd/0x170 [ 9479.285609][ T254] do_syscall_64+0xc6/0x1e0 [ 9479.285609][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9479.285609][ T254] [ 9489.383765][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9489.384385][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.384385][ T254] dst_init+0x84/0x4a0 [ 9489.384385][ T254] dst_alloc+0x97/0x150 [ 9489.384385][ T254] ip6_dst_alloc+0x23/0x90 [ 9489.384385][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9489.384385][ T254] ip6_pol_route+0x56f/0x840 [ 9489.384385][ T254] fib6_rule_lookup+0x334/0x630 [ 9489.384385][ T254] ip6_route_output_flags+0x259/0x480 [ 9489.384385][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9489.384385][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9489.384385][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.384385][ T254] netlink_unicast+0x449/0x710 [ 9489.384385][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.384385][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.384385][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.384385][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.384385][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.384385][ T254] [ 9489.386679][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.386679][ T254] netdev_get_by_index+0x5e/0x80 [ 9489.386679][ T254] fib6_nh_init+0x3d8/0x1580 [ 9489.386679][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9489.386679][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9489.386679][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9489.386679][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9489.386679][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9489.386679][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9489.386679][ T254] addrconf_dad_begin+0x310/0x670 [ 9489.386679][ T254] addrconf_dad_work+0x10b/0xab0 [ 9489.386679][ T254] process_one_work+0x84d/0x18a0 [ 9489.386679][ T254] worker_thread+0x587/0xd30 [ 9489.386679][ T254] kthread+0x28a/0x350 [ 9489.386679][ T254] ret_from_fork+0x31/0x70 [ 9489.386679][ T254] ret_from_fork_asm+0x1a/0x30 [ 9489.386679][ T254] [ 9489.389463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.389463][ T254] netdev_get_by_index+0x5e/0x80 [ 9489.389463][ T254] fib6_nh_init+0x3d8/0x1580 [ 9489.389463][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9489.389463][ T254] ip6_route_add+0x1c/0x140 [ 9489.389463][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9489.389463][ T254] inet6_addr_add+0x4f8/0xa40 [ 9489.389463][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9489.389463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9489.389463][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.389463][ T254] netlink_unicast+0x449/0x710 [ 9489.389463][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.389463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.389463][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.389463][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.389463][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.389463][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9489.389463][ T254] [ 9489.391784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.391784][ T254] netdev_get_by_index+0x5e/0x80 [ 9489.391784][ T254] fib6_nh_init+0x3d8/0x1580 [ 9489.391784][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9489.391784][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9489.391784][ T254] ipv6_add_addr+0x411/0x2000 [ 9489.391784][ T254] inet6_addr_add+0x30e/0xa40 [ 9489.391784][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9489.391784][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9489.391784][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.391784][ T254] netlink_unicast+0x449/0x710 [ 9489.391784][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.391784][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.391784][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.391784][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.391784][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.391784][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9489.391784][ T254] [ 9489.394112][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.394112][ T254] netdev_get_by_index+0x5e/0x80 [ 9489.394112][ T254] fib6_nh_init+0x3d8/0x1580 [ 9489.394112][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9489.394112][ T254] ip6_route_add+0x1c/0x140 [ 9489.394112][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9489.394112][ T254] addrconf_add_dev+0xe2/0x170 [ 9489.394112][ T254] inet6_addr_add+0x12f/0xa40 [ 9489.394112][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9489.394112][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9489.394112][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.394112][ T254] netlink_unicast+0x449/0x710 [ 9489.394112][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.394112][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.394112][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.394112][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.394112][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.394112][ T254] [ 9489.396401][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.396401][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9489.396401][ T254] ipv6_find_idev+0x102/0x170 [ 9489.396401][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9489.396401][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9489.396401][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.396401][ T254] netlink_unicast+0x449/0x710 [ 9489.396401][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.396401][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.396401][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.396401][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.396401][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.396401][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9489.396401][ T254] [ 9489.398180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9489.398180][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9489.398180][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9489.398180][ T254] ipv6_find_idev+0x102/0x170 [ 9489.398180][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9489.398180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9489.398180][ T254] netlink_rcv_skb+0x130/0x360 [ 9489.398180][ T254] netlink_unicast+0x449/0x710 [ 9489.398180][ T254] netlink_sendmsg+0x723/0xbe0 [ 9489.398180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9489.398180][ T254] ___sys_sendmsg+0xee/0x170 [ 9489.398180][ T254] __sys_sendmsg+0xcd/0x170 [ 9489.398180][ T254] do_syscall_64+0xc6/0x1e0 [ 9489.398180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9489.398180][ T254] [ 9499.647776][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9499.648346][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.648346][ T254] dst_init+0x84/0x4a0 [ 9499.648346][ T254] dst_alloc+0x97/0x150 [ 9499.648346][ T254] ip6_dst_alloc+0x23/0x90 [ 9499.648346][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9499.648346][ T254] ip6_pol_route+0x56f/0x840 [ 9499.648346][ T254] fib6_rule_lookup+0x334/0x630 [ 9499.648346][ T254] ip6_route_output_flags+0x259/0x480 [ 9499.648346][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9499.648346][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9499.648346][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.648346][ T254] netlink_unicast+0x449/0x710 [ 9499.648346][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.648346][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.648346][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.648346][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.648346][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.648346][ T254] [ 9499.650640][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.650640][ T254] netdev_get_by_index+0x5e/0x80 [ 9499.650640][ T254] fib6_nh_init+0x3d8/0x1580 [ 9499.650640][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9499.650640][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9499.650640][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9499.650640][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9499.650640][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9499.650640][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9499.650640][ T254] addrconf_dad_begin+0x310/0x670 [ 9499.650640][ T254] addrconf_dad_work+0x10b/0xab0 [ 9499.650640][ T254] process_one_work+0x84d/0x18a0 [ 9499.650640][ T254] worker_thread+0x587/0xd30 [ 9499.650640][ T254] kthread+0x28a/0x350 [ 9499.650640][ T254] ret_from_fork+0x31/0x70 [ 9499.650640][ T254] ret_from_fork_asm+0x1a/0x30 [ 9499.650640][ T254] [ 9499.652861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.652861][ T254] netdev_get_by_index+0x5e/0x80 [ 9499.652861][ T254] fib6_nh_init+0x3d8/0x1580 [ 9499.652861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9499.652861][ T254] ip6_route_add+0x1c/0x140 [ 9499.652861][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9499.652861][ T254] inet6_addr_add+0x4f8/0xa40 [ 9499.652861][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9499.652861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9499.652861][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.652861][ T254] netlink_unicast+0x449/0x710 [ 9499.652861][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.652861][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.652861][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.652861][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.652861][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.652861][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9499.652861][ T254] [ 9499.655189][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.655189][ T254] netdev_get_by_index+0x5e/0x80 [ 9499.655189][ T254] fib6_nh_init+0x3d8/0x1580 [ 9499.655189][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9499.655189][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9499.655189][ T254] ipv6_add_addr+0x411/0x2000 [ 9499.655189][ T254] inet6_addr_add+0x30e/0xa40 [ 9499.655189][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9499.655189][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9499.655189][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.655189][ T254] netlink_unicast+0x449/0x710 [ 9499.655189][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.655189][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.655189][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.655189][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.655189][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.655189][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9499.655189][ T254] [ 9499.657521][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.657521][ T254] netdev_get_by_index+0x5e/0x80 [ 9499.657521][ T254] fib6_nh_init+0x3d8/0x1580 [ 9499.657521][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9499.657521][ T254] ip6_route_add+0x1c/0x140 [ 9499.657521][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9499.657521][ T254] addrconf_add_dev+0xe2/0x170 [ 9499.657521][ T254] inet6_addr_add+0x12f/0xa40 [ 9499.657521][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9499.657521][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9499.657521][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.657521][ T254] netlink_unicast+0x449/0x710 [ 9499.657521][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.657521][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.657521][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.657521][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.657521][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.657521][ T254] [ 9499.659803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.659803][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9499.659803][ T254] ipv6_find_idev+0x102/0x170 [ 9499.659803][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9499.659803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9499.659803][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.659803][ T254] netlink_unicast+0x449/0x710 [ 9499.659803][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.659803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.659803][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.659803][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.659803][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.659803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9499.659803][ T254] [ 9499.661595][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9499.661595][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9499.661595][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9499.661595][ T254] ipv6_find_idev+0x102/0x170 [ 9499.661595][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9499.661595][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9499.661595][ T254] netlink_rcv_skb+0x130/0x360 [ 9499.661595][ T254] netlink_unicast+0x449/0x710 [ 9499.661595][ T254] netlink_sendmsg+0x723/0xbe0 [ 9499.661595][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9499.661595][ T254] ___sys_sendmsg+0xee/0x170 [ 9499.661595][ T254] __sys_sendmsg+0xcd/0x170 [ 9499.661595][ T254] do_syscall_64+0xc6/0x1e0 [ 9499.661595][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9499.661595][ T254] [ 9509.911850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9509.912394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.912394][ T254] dst_init+0x84/0x4a0 [ 9509.912394][ T254] dst_alloc+0x97/0x150 [ 9509.912394][ T254] ip6_dst_alloc+0x23/0x90 [ 9509.912394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9509.912394][ T254] ip6_pol_route+0x56f/0x840 [ 9509.912394][ T254] fib6_rule_lookup+0x334/0x630 [ 9509.912394][ T254] ip6_route_output_flags+0x259/0x480 [ 9509.912394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9509.912394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9509.912394][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.912394][ T254] netlink_unicast+0x449/0x710 [ 9509.912394][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.912394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.912394][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.912394][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.912394][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.912394][ T254] [ 9509.914659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.914659][ T254] netdev_get_by_index+0x5e/0x80 [ 9509.914659][ T254] fib6_nh_init+0x3d8/0x1580 [ 9509.914659][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9509.914659][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9509.914659][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9509.914659][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9509.914659][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9509.914659][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9509.914659][ T254] addrconf_dad_begin+0x310/0x670 [ 9509.914659][ T254] addrconf_dad_work+0x10b/0xab0 [ 9509.914659][ T254] process_one_work+0x84d/0x18a0 [ 9509.914659][ T254] worker_thread+0x587/0xd30 [ 9509.914659][ T254] kthread+0x28a/0x350 [ 9509.914659][ T254] ret_from_fork+0x31/0x70 [ 9509.914659][ T254] ret_from_fork_asm+0x1a/0x30 [ 9509.914659][ T254] [ 9509.916853][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.916853][ T254] netdev_get_by_index+0x5e/0x80 [ 9509.916853][ T254] fib6_nh_init+0x3d8/0x1580 [ 9509.916853][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9509.916853][ T254] ip6_route_add+0x1c/0x140 [ 9509.916853][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9509.916853][ T254] inet6_addr_add+0x4f8/0xa40 [ 9509.916853][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9509.916853][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9509.916853][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.916853][ T254] netlink_unicast+0x449/0x710 [ 9509.916853][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.916853][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.916853][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.916853][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.916853][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.916853][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9509.916853][ T254] [ 9509.919140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.919140][ T254] netdev_get_by_index+0x5e/0x80 [ 9509.919140][ T254] fib6_nh_init+0x3d8/0x1580 [ 9509.919140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9509.919140][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9509.919140][ T254] ipv6_add_addr+0x411/0x2000 [ 9509.919140][ T254] inet6_addr_add+0x30e/0xa40 [ 9509.919140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9509.919140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9509.919140][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.919140][ T254] netlink_unicast+0x449/0x710 [ 9509.919140][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.919140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.919140][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.919140][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.919140][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.919140][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9509.919140][ T254] [ 9509.921432][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.921432][ T254] netdev_get_by_index+0x5e/0x80 [ 9509.921432][ T254] fib6_nh_init+0x3d8/0x1580 [ 9509.921432][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9509.921432][ T254] ip6_route_add+0x1c/0x140 [ 9509.921432][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9509.921432][ T254] addrconf_add_dev+0xe2/0x170 [ 9509.921432][ T254] inet6_addr_add+0x12f/0xa40 [ 9509.921432][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9509.921432][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9509.921432][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.921432][ T254] netlink_unicast+0x449/0x710 [ 9509.921432][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.921432][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.921432][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.921432][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.921432][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.921432][ T254] [ 9509.923716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.923716][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9509.923716][ T254] ipv6_find_idev+0x102/0x170 [ 9509.923716][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9509.923716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9509.923716][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.923716][ T254] netlink_unicast+0x449/0x710 [ 9509.923716][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.923716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.923716][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.923716][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.923716][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.923716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9509.923716][ T254] [ 9509.925485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9509.925485][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9509.925485][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9509.925485][ T254] ipv6_find_idev+0x102/0x170 [ 9509.925485][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9509.925485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9509.925485][ T254] netlink_rcv_skb+0x130/0x360 [ 9509.925485][ T254] netlink_unicast+0x449/0x710 [ 9509.925485][ T254] netlink_sendmsg+0x723/0xbe0 [ 9509.925485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9509.925485][ T254] ___sys_sendmsg+0xee/0x170 [ 9509.925485][ T254] __sys_sendmsg+0xcd/0x170 [ 9509.925485][ T254] do_syscall_64+0xc6/0x1e0 [ 9509.925485][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9509.925485][ T254] [ 9520.127790][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9520.128391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.128391][ T254] dst_init+0x84/0x4a0 [ 9520.128391][ T254] dst_alloc+0x97/0x150 [ 9520.128391][ T254] ip6_dst_alloc+0x23/0x90 [ 9520.128391][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9520.128391][ T254] ip6_pol_route+0x56f/0x840 [ 9520.128391][ T254] fib6_rule_lookup+0x334/0x630 [ 9520.128391][ T254] ip6_route_output_flags+0x259/0x480 [ 9520.128391][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9520.128391][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9520.128391][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.128391][ T254] netlink_unicast+0x449/0x710 [ 9520.128391][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.128391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.128391][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.128391][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.128391][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.128391][ T254] [ 9520.130658][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.130658][ T254] netdev_get_by_index+0x5e/0x80 [ 9520.130658][ T254] fib6_nh_init+0x3d8/0x1580 [ 9520.130658][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9520.130658][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9520.130658][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9520.130658][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9520.130658][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9520.130658][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9520.130658][ T254] addrconf_dad_begin+0x310/0x670 [ 9520.130658][ T254] addrconf_dad_work+0x10b/0xab0 [ 9520.130658][ T254] process_one_work+0x84d/0x18a0 [ 9520.130658][ T254] worker_thread+0x587/0xd30 [ 9520.130658][ T254] kthread+0x28a/0x350 [ 9520.130658][ T254] ret_from_fork+0x31/0x70 [ 9520.130658][ T254] ret_from_fork_asm+0x1a/0x30 [ 9520.130658][ T254] [ 9520.132858][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.132858][ T254] netdev_get_by_index+0x5e/0x80 [ 9520.132858][ T254] fib6_nh_init+0x3d8/0x1580 [ 9520.132858][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9520.132858][ T254] ip6_route_add+0x1c/0x140 [ 9520.132858][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9520.132858][ T254] inet6_addr_add+0x4f8/0xa40 [ 9520.132858][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9520.132858][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9520.132858][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.132858][ T254] netlink_unicast+0x449/0x710 [ 9520.132858][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.132858][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.132858][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.132858][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.132858][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.132858][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9520.132858][ T254] [ 9520.135155][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.135155][ T254] netdev_get_by_index+0x5e/0x80 [ 9520.135155][ T254] fib6_nh_init+0x3d8/0x1580 [ 9520.135155][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9520.135155][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9520.135155][ T254] ipv6_add_addr+0x411/0x2000 [ 9520.135155][ T254] inet6_addr_add+0x30e/0xa40 [ 9520.135155][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9520.135155][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9520.135155][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.135155][ T254] netlink_unicast+0x449/0x710 [ 9520.135155][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.135155][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.135155][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.135155][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.135155][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.135155][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9520.135155][ T254] [ 9520.137457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.137457][ T254] netdev_get_by_index+0x5e/0x80 [ 9520.137457][ T254] fib6_nh_init+0x3d8/0x1580 [ 9520.137457][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9520.137457][ T254] ip6_route_add+0x1c/0x140 [ 9520.137457][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9520.137457][ T254] addrconf_add_dev+0xe2/0x170 [ 9520.137457][ T254] inet6_addr_add+0x12f/0xa40 [ 9520.137457][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9520.137457][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9520.137457][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.137457][ T254] netlink_unicast+0x449/0x710 [ 9520.137457][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.137457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.137457][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.137457][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.137457][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.137457][ T254] [ 9520.139714][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.139714][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9520.139714][ T254] ipv6_find_idev+0x102/0x170 [ 9520.139714][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9520.139714][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9520.139714][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.139714][ T254] netlink_unicast+0x449/0x710 [ 9520.139714][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.139714][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.139714][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.139714][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.139714][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.139714][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9520.139714][ T254] [ 9520.141482][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9520.141482][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9520.141482][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9520.141482][ T254] ipv6_find_idev+0x102/0x170 [ 9520.141482][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9520.141482][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9520.141482][ T254] netlink_rcv_skb+0x130/0x360 [ 9520.141482][ T254] netlink_unicast+0x449/0x710 [ 9520.141482][ T254] netlink_sendmsg+0x723/0xbe0 [ 9520.141482][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9520.141482][ T254] ___sys_sendmsg+0xee/0x170 [ 9520.141482][ T254] __sys_sendmsg+0xcd/0x170 [ 9520.141482][ T254] do_syscall_64+0xc6/0x1e0 [ 9520.141482][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9520.141482][ T254] [ 9530.383793][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9530.384361][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.384361][ T254] dst_init+0x84/0x4a0 [ 9530.384361][ T254] dst_alloc+0x97/0x150 [ 9530.384361][ T254] ip6_dst_alloc+0x23/0x90 [ 9530.384361][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9530.384361][ T254] ip6_pol_route+0x56f/0x840 [ 9530.384361][ T254] fib6_rule_lookup+0x334/0x630 [ 9530.384361][ T254] ip6_route_output_flags+0x259/0x480 [ 9530.384361][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9530.384361][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9530.384361][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.384361][ T254] netlink_unicast+0x449/0x710 [ 9530.384361][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.384361][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.384361][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.384361][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.384361][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.384361][ T254] [ 9530.386625][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.386625][ T254] netdev_get_by_index+0x5e/0x80 [ 9530.386625][ T254] fib6_nh_init+0x3d8/0x1580 [ 9530.386625][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9530.386625][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9530.386625][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9530.386625][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9530.386625][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9530.386625][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9530.386625][ T254] addrconf_dad_begin+0x310/0x670 [ 9530.386625][ T254] addrconf_dad_work+0x10b/0xab0 [ 9530.386625][ T254] process_one_work+0x84d/0x18a0 [ 9530.386625][ T254] worker_thread+0x587/0xd30 [ 9530.386625][ T254] kthread+0x28a/0x350 [ 9530.386625][ T254] ret_from_fork+0x31/0x70 [ 9530.386625][ T254] ret_from_fork_asm+0x1a/0x30 [ 9530.386625][ T254] [ 9530.388835][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.388835][ T254] netdev_get_by_index+0x5e/0x80 [ 9530.388835][ T254] fib6_nh_init+0x3d8/0x1580 [ 9530.388835][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9530.388835][ T254] ip6_route_add+0x1c/0x140 [ 9530.388835][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9530.388835][ T254] inet6_addr_add+0x4f8/0xa40 [ 9530.388835][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9530.388835][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9530.388835][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.388835][ T254] netlink_unicast+0x449/0x710 [ 9530.388835][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.388835][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.388835][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.388835][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.388835][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.388835][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9530.388835][ T254] [ 9530.391152][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.391152][ T254] netdev_get_by_index+0x5e/0x80 [ 9530.391152][ T254] fib6_nh_init+0x3d8/0x1580 [ 9530.391152][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9530.391152][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9530.391152][ T254] ipv6_add_addr+0x411/0x2000 [ 9530.391152][ T254] inet6_addr_add+0x30e/0xa40 [ 9530.391152][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9530.391152][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9530.391152][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.391152][ T254] netlink_unicast+0x449/0x710 [ 9530.391152][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.391152][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.391152][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.391152][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.391152][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.391152][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9530.391152][ T254] [ 9530.393481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.393481][ T254] netdev_get_by_index+0x5e/0x80 [ 9530.393481][ T254] fib6_nh_init+0x3d8/0x1580 [ 9530.393481][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9530.393481][ T254] ip6_route_add+0x1c/0x140 [ 9530.393481][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9530.393481][ T254] addrconf_add_dev+0xe2/0x170 [ 9530.393481][ T254] inet6_addr_add+0x12f/0xa40 [ 9530.393481][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9530.393481][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9530.393481][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.393481][ T254] netlink_unicast+0x449/0x710 [ 9530.393481][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.393481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.393481][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.393481][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.393481][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.393481][ T254] [ 9530.395736][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.395736][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9530.395736][ T254] ipv6_find_idev+0x102/0x170 [ 9530.395736][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9530.395736][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9530.395736][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.395736][ T254] netlink_unicast+0x449/0x710 [ 9530.395736][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.395736][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.395736][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.395736][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.395736][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.395736][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9530.395736][ T254] [ 9530.397506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9530.397506][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9530.397506][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9530.397506][ T254] ipv6_find_idev+0x102/0x170 [ 9530.397506][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9530.397506][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9530.397506][ T254] netlink_rcv_skb+0x130/0x360 [ 9530.397506][ T254] netlink_unicast+0x449/0x710 [ 9530.397506][ T254] netlink_sendmsg+0x723/0xbe0 [ 9530.397506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9530.397506][ T254] ___sys_sendmsg+0xee/0x170 [ 9530.397506][ T254] __sys_sendmsg+0xcd/0x170 [ 9530.397506][ T254] do_syscall_64+0xc6/0x1e0 [ 9530.397506][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9530.397506][ T254] [ 9540.639848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9540.640392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.640392][ T254] dst_init+0x84/0x4a0 [ 9540.640392][ T254] dst_alloc+0x97/0x150 [ 9540.640392][ T254] ip6_dst_alloc+0x23/0x90 [ 9540.640392][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9540.640392][ T254] ip6_pol_route+0x56f/0x840 [ 9540.640392][ T254] fib6_rule_lookup+0x334/0x630 [ 9540.640392][ T254] ip6_route_output_flags+0x259/0x480 [ 9540.640392][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9540.640392][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9540.640392][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.640392][ T254] netlink_unicast+0x449/0x710 [ 9540.640392][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.640392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.640392][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.640392][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.640392][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.640392][ T254] [ 9540.642653][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.642653][ T254] netdev_get_by_index+0x5e/0x80 [ 9540.642653][ T254] fib6_nh_init+0x3d8/0x1580 [ 9540.642653][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9540.642653][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9540.642653][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9540.642653][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9540.642653][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9540.642653][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9540.642653][ T254] addrconf_dad_begin+0x310/0x670 [ 9540.642653][ T254] addrconf_dad_work+0x10b/0xab0 [ 9540.642653][ T254] process_one_work+0x84d/0x18a0 [ 9540.642653][ T254] worker_thread+0x587/0xd30 [ 9540.642653][ T254] kthread+0x28a/0x350 [ 9540.642653][ T254] ret_from_fork+0x31/0x70 [ 9540.642653][ T254] ret_from_fork_asm+0x1a/0x30 [ 9540.642653][ T254] [ 9540.644877][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.644877][ T254] netdev_get_by_index+0x5e/0x80 [ 9540.644877][ T254] fib6_nh_init+0x3d8/0x1580 [ 9540.644877][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9540.644877][ T254] ip6_route_add+0x1c/0x140 [ 9540.644877][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9540.644877][ T254] inet6_addr_add+0x4f8/0xa40 [ 9540.644877][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9540.644877][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9540.644877][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.644877][ T254] netlink_unicast+0x449/0x710 [ 9540.644877][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.644877][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.644877][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.644877][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.644877][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.644877][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9540.644877][ T254] [ 9540.647170][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.647170][ T254] netdev_get_by_index+0x5e/0x80 [ 9540.647170][ T254] fib6_nh_init+0x3d8/0x1580 [ 9540.647170][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9540.647170][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9540.647170][ T254] ipv6_add_addr+0x411/0x2000 [ 9540.647170][ T254] inet6_addr_add+0x30e/0xa40 [ 9540.647170][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9540.647170][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9540.647170][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.647170][ T254] netlink_unicast+0x449/0x710 [ 9540.647170][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.647170][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.647170][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.647170][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.647170][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.647170][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9540.647170][ T254] [ 9540.649463][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.649463][ T254] netdev_get_by_index+0x5e/0x80 [ 9540.649463][ T254] fib6_nh_init+0x3d8/0x1580 [ 9540.649463][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9540.649463][ T254] ip6_route_add+0x1c/0x140 [ 9540.649463][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9540.649463][ T254] addrconf_add_dev+0xe2/0x170 [ 9540.649463][ T254] inet6_addr_add+0x12f/0xa40 [ 9540.649463][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9540.649463][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9540.649463][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.649463][ T254] netlink_unicast+0x449/0x710 [ 9540.649463][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.649463][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.649463][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.649463][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.649463][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.649463][ T254] [ 9540.651717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.651717][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9540.651717][ T254] ipv6_find_idev+0x102/0x170 [ 9540.651717][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9540.651717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9540.651717][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.651717][ T254] netlink_unicast+0x449/0x710 [ 9540.651717][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.651717][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.651717][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.651717][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.651717][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.651717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9540.651717][ T254] [ 9540.653489][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9540.653489][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9540.653489][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9540.653489][ T254] ipv6_find_idev+0x102/0x170 [ 9540.653489][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9540.653489][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9540.653489][ T254] netlink_rcv_skb+0x130/0x360 [ 9540.653489][ T254] netlink_unicast+0x449/0x710 [ 9540.653489][ T254] netlink_sendmsg+0x723/0xbe0 [ 9540.653489][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9540.653489][ T254] ___sys_sendmsg+0xee/0x170 [ 9540.653489][ T254] __sys_sendmsg+0xcd/0x170 [ 9540.653489][ T254] do_syscall_64+0xc6/0x1e0 [ 9540.653489][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9540.653489][ T254] [ 9550.655854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9550.656389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.656389][ T254] dst_init+0x84/0x4a0 [ 9550.656389][ T254] dst_alloc+0x97/0x150 [ 9550.656389][ T254] ip6_dst_alloc+0x23/0x90 [ 9550.656389][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9550.656389][ T254] ip6_pol_route+0x56f/0x840 [ 9550.656389][ T254] fib6_rule_lookup+0x334/0x630 [ 9550.656389][ T254] ip6_route_output_flags+0x259/0x480 [ 9550.656389][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9550.656389][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9550.656389][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.656389][ T254] netlink_unicast+0x449/0x710 [ 9550.656389][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.656389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.656389][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.656389][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.656389][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.656389][ T254] [ 9550.658652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.658652][ T254] netdev_get_by_index+0x5e/0x80 [ 9550.658652][ T254] fib6_nh_init+0x3d8/0x1580 [ 9550.658652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9550.658652][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9550.658652][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9550.658652][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9550.658652][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9550.658652][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9550.658652][ T254] addrconf_dad_begin+0x310/0x670 [ 9550.658652][ T254] addrconf_dad_work+0x10b/0xab0 [ 9550.658652][ T254] process_one_work+0x84d/0x18a0 [ 9550.658652][ T254] worker_thread+0x587/0xd30 [ 9550.658652][ T254] kthread+0x28a/0x350 [ 9550.658652][ T254] ret_from_fork+0x31/0x70 [ 9550.658652][ T254] ret_from_fork_asm+0x1a/0x30 [ 9550.658652][ T254] [ 9550.660847][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.660847][ T254] netdev_get_by_index+0x5e/0x80 [ 9550.660847][ T254] fib6_nh_init+0x3d8/0x1580 [ 9550.660847][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9550.660847][ T254] ip6_route_add+0x1c/0x140 [ 9550.660847][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9550.660847][ T254] inet6_addr_add+0x4f8/0xa40 [ 9550.660847][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9550.660847][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9550.660847][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.660847][ T254] netlink_unicast+0x449/0x710 [ 9550.660847][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.660847][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.660847][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.660847][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.660847][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.660847][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9550.660847][ T254] [ 9550.663143][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.663143][ T254] netdev_get_by_index+0x5e/0x80 [ 9550.663143][ T254] fib6_nh_init+0x3d8/0x1580 [ 9550.663143][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9550.663143][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9550.663143][ T254] ipv6_add_addr+0x411/0x2000 [ 9550.663143][ T254] inet6_addr_add+0x30e/0xa40 [ 9550.663143][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9550.663143][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9550.663143][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.663143][ T254] netlink_unicast+0x449/0x710 [ 9550.663143][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.663143][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.663143][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.663143][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.663143][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.663143][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9550.663143][ T254] [ 9550.665443][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.665443][ T254] netdev_get_by_index+0x5e/0x80 [ 9550.665443][ T254] fib6_nh_init+0x3d8/0x1580 [ 9550.665443][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9550.665443][ T254] ip6_route_add+0x1c/0x140 [ 9550.665443][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9550.665443][ T254] addrconf_add_dev+0xe2/0x170 [ 9550.665443][ T254] inet6_addr_add+0x12f/0xa40 [ 9550.665443][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9550.665443][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9550.665443][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.665443][ T254] netlink_unicast+0x449/0x710 [ 9550.665443][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.665443][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.665443][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.665443][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.665443][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.665443][ T254] [ 9550.667694][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.667694][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9550.667694][ T254] ipv6_find_idev+0x102/0x170 [ 9550.667694][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9550.667694][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9550.667694][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.667694][ T254] netlink_unicast+0x449/0x710 [ 9550.667694][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.667694][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.667694][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.667694][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.667694][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.667694][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9550.667694][ T254] [ 9550.669453][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9550.669453][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9550.669453][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9550.669453][ T254] ipv6_find_idev+0x102/0x170 [ 9550.669453][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9550.669453][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9550.669453][ T254] netlink_rcv_skb+0x130/0x360 [ 9550.669453][ T254] netlink_unicast+0x449/0x710 [ 9550.669453][ T254] netlink_sendmsg+0x723/0xbe0 [ 9550.669453][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9550.669453][ T254] ___sys_sendmsg+0xee/0x170 [ 9550.669453][ T254] __sys_sendmsg+0xcd/0x170 [ 9550.669453][ T254] do_syscall_64+0xc6/0x1e0 [ 9550.669453][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9550.669453][ T254] [ 9560.895850][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9560.896395][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.896395][ T254] dst_init+0x84/0x4a0 [ 9560.896395][ T254] dst_alloc+0x97/0x150 [ 9560.896395][ T254] ip6_dst_alloc+0x23/0x90 [ 9560.896395][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9560.896395][ T254] ip6_pol_route+0x56f/0x840 [ 9560.896395][ T254] fib6_rule_lookup+0x334/0x630 [ 9560.896395][ T254] ip6_route_output_flags+0x259/0x480 [ 9560.896395][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9560.896395][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9560.896395][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.896395][ T254] netlink_unicast+0x449/0x710 [ 9560.896395][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.896395][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.896395][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.896395][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.896395][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.896395][ T254] [ 9560.898677][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.898677][ T254] netdev_get_by_index+0x5e/0x80 [ 9560.898677][ T254] fib6_nh_init+0x3d8/0x1580 [ 9560.898677][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9560.898677][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9560.898677][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9560.898677][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9560.898677][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9560.898677][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9560.898677][ T254] addrconf_dad_begin+0x310/0x670 [ 9560.898677][ T254] addrconf_dad_work+0x10b/0xab0 [ 9560.898677][ T254] process_one_work+0x84d/0x18a0 [ 9560.898677][ T254] worker_thread+0x587/0xd30 [ 9560.898677][ T254] kthread+0x28a/0x350 [ 9560.898677][ T254] ret_from_fork+0x31/0x70 [ 9560.898677][ T254] ret_from_fork_asm+0x1a/0x30 [ 9560.898677][ T254] [ 9560.900875][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.900875][ T254] netdev_get_by_index+0x5e/0x80 [ 9560.900875][ T254] fib6_nh_init+0x3d8/0x1580 [ 9560.900875][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9560.900875][ T254] ip6_route_add+0x1c/0x140 [ 9560.900875][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9560.900875][ T254] inet6_addr_add+0x4f8/0xa40 [ 9560.900875][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9560.900875][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9560.900875][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.900875][ T254] netlink_unicast+0x449/0x710 [ 9560.900875][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.900875][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.900875][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.900875][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.900875][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.900875][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9560.900875][ T254] [ 9560.903509][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.903509][ T254] netdev_get_by_index+0x5e/0x80 [ 9560.903509][ T254] fib6_nh_init+0x3d8/0x1580 [ 9560.903509][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9560.903509][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9560.903509][ T254] ipv6_add_addr+0x411/0x2000 [ 9560.903509][ T254] inet6_addr_add+0x30e/0xa40 [ 9560.903509][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9560.903509][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9560.903509][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.903509][ T254] netlink_unicast+0x449/0x710 [ 9560.903509][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.903509][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.903509][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.903509][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.903509][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.903509][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9560.903509][ T254] [ 9560.905809][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.905809][ T254] netdev_get_by_index+0x5e/0x80 [ 9560.905809][ T254] fib6_nh_init+0x3d8/0x1580 [ 9560.905809][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9560.905809][ T254] ip6_route_add+0x1c/0x140 [ 9560.905809][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9560.905809][ T254] addrconf_add_dev+0xe2/0x170 [ 9560.905809][ T254] inet6_addr_add+0x12f/0xa40 [ 9560.905809][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9560.905809][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9560.905809][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.905809][ T254] netlink_unicast+0x449/0x710 [ 9560.905809][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.905809][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.905809][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.905809][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.905809][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.905809][ T254] [ 9560.908082][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.908082][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9560.908082][ T254] ipv6_find_idev+0x102/0x170 [ 9560.908082][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9560.908082][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9560.908082][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.908082][ T254] netlink_unicast+0x449/0x710 [ 9560.908082][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.908082][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.908082][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.908082][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.908082][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.908082][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9560.908082][ T254] [ 9560.909850][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9560.909850][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9560.909850][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9560.909850][ T254] ipv6_find_idev+0x102/0x170 [ 9560.909850][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9560.909850][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9560.909850][ T254] netlink_rcv_skb+0x130/0x360 [ 9560.909850][ T254] netlink_unicast+0x449/0x710 [ 9560.909850][ T254] netlink_sendmsg+0x723/0xbe0 [ 9560.909850][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9560.909850][ T254] ___sys_sendmsg+0xee/0x170 [ 9560.909850][ T254] __sys_sendmsg+0xcd/0x170 [ 9560.909850][ T254] do_syscall_64+0xc6/0x1e0 [ 9560.909850][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9560.909850][ T254] [ 9571.151858][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9571.152407][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.152407][ T254] dst_init+0x84/0x4a0 [ 9571.152407][ T254] dst_alloc+0x97/0x150 [ 9571.152407][ T254] ip6_dst_alloc+0x23/0x90 [ 9571.152407][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9571.152407][ T254] ip6_pol_route+0x56f/0x840 [ 9571.152407][ T254] fib6_rule_lookup+0x334/0x630 [ 9571.152407][ T254] ip6_route_output_flags+0x259/0x480 [ 9571.152407][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9571.152407][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9571.152407][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.152407][ T254] netlink_unicast+0x449/0x710 [ 9571.152407][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.152407][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.152407][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.152407][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.152407][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.152407][ T254] [ 9571.154683][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.154683][ T254] netdev_get_by_index+0x5e/0x80 [ 9571.154683][ T254] fib6_nh_init+0x3d8/0x1580 [ 9571.154683][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9571.154683][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9571.154683][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9571.154683][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9571.154683][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9571.154683][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9571.154683][ T254] addrconf_dad_begin+0x310/0x670 [ 9571.154683][ T254] addrconf_dad_work+0x10b/0xab0 [ 9571.154683][ T254] process_one_work+0x84d/0x18a0 [ 9571.154683][ T254] worker_thread+0x587/0xd30 [ 9571.154683][ T254] kthread+0x28a/0x350 [ 9571.154683][ T254] ret_from_fork+0x31/0x70 [ 9571.154683][ T254] ret_from_fork_asm+0x1a/0x30 [ 9571.154683][ T254] [ 9571.156878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.156878][ T254] netdev_get_by_index+0x5e/0x80 [ 9571.156878][ T254] fib6_nh_init+0x3d8/0x1580 [ 9571.156878][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9571.156878][ T254] ip6_route_add+0x1c/0x140 [ 9571.156878][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9571.156878][ T254] inet6_addr_add+0x4f8/0xa40 [ 9571.156878][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9571.156878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9571.156878][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.156878][ T254] netlink_unicast+0x449/0x710 [ 9571.156878][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.156878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.156878][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.156878][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.156878][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.156878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9571.156878][ T254] [ 9571.159183][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.159183][ T254] netdev_get_by_index+0x5e/0x80 [ 9571.159183][ T254] fib6_nh_init+0x3d8/0x1580 [ 9571.159183][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9571.159183][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9571.159183][ T254] ipv6_add_addr+0x411/0x2000 [ 9571.159183][ T254] inet6_addr_add+0x30e/0xa40 [ 9571.159183][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9571.159183][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9571.159183][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.159183][ T254] netlink_unicast+0x449/0x710 [ 9571.159183][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.159183][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.159183][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.159183][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.159183][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.159183][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9571.159183][ T254] [ 9571.161476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.161476][ T254] netdev_get_by_index+0x5e/0x80 [ 9571.161476][ T254] fib6_nh_init+0x3d8/0x1580 [ 9571.161476][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9571.161476][ T254] ip6_route_add+0x1c/0x140 [ 9571.161476][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9571.161476][ T254] addrconf_add_dev+0xe2/0x170 [ 9571.161476][ T254] inet6_addr_add+0x12f/0xa40 [ 9571.161476][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9571.161476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9571.161476][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.161476][ T254] netlink_unicast+0x449/0x710 [ 9571.161476][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.161476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.161476][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.161476][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.161476][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.161476][ T254] [ 9571.163741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.163741][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9571.163741][ T254] ipv6_find_idev+0x102/0x170 [ 9571.163741][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9571.163741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9571.163741][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.163741][ T254] netlink_unicast+0x449/0x710 [ 9571.163741][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.163741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.163741][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.163741][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.163741][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.163741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9571.163741][ T254] [ 9571.165531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9571.165531][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9571.165531][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9571.165531][ T254] ipv6_find_idev+0x102/0x170 [ 9571.165531][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9571.165531][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9571.165531][ T254] netlink_rcv_skb+0x130/0x360 [ 9571.165531][ T254] netlink_unicast+0x449/0x710 [ 9571.165531][ T254] netlink_sendmsg+0x723/0xbe0 [ 9571.165531][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9571.165531][ T254] ___sys_sendmsg+0xee/0x170 [ 9571.165531][ T254] __sys_sendmsg+0xcd/0x170 [ 9571.165531][ T254] do_syscall_64+0xc6/0x1e0 [ 9571.165531][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9571.165531][ T254] [ 9581.407853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9581.408390][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.408390][ T254] dst_init+0x84/0x4a0 [ 9581.408390][ T254] dst_alloc+0x97/0x150 [ 9581.408390][ T254] ip6_dst_alloc+0x23/0x90 [ 9581.408390][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9581.408390][ T254] ip6_pol_route+0x56f/0x840 [ 9581.408390][ T254] fib6_rule_lookup+0x334/0x630 [ 9581.408390][ T254] ip6_route_output_flags+0x259/0x480 [ 9581.408390][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9581.408390][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9581.408390][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.408390][ T254] netlink_unicast+0x449/0x710 [ 9581.408390][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.408390][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.408390][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.408390][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.408390][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.408390][ T254] [ 9581.410663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.410663][ T254] netdev_get_by_index+0x5e/0x80 [ 9581.410663][ T254] fib6_nh_init+0x3d8/0x1580 [ 9581.410663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9581.410663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9581.410663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9581.410663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9581.410663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9581.410663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9581.410663][ T254] addrconf_dad_begin+0x310/0x670 [ 9581.410663][ T254] addrconf_dad_work+0x10b/0xab0 [ 9581.410663][ T254] process_one_work+0x84d/0x18a0 [ 9581.410663][ T254] worker_thread+0x587/0xd30 [ 9581.410663][ T254] kthread+0x28a/0x350 [ 9581.410663][ T254] ret_from_fork+0x31/0x70 [ 9581.410663][ T254] ret_from_fork_asm+0x1a/0x30 [ 9581.410663][ T254] [ 9581.412861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.412861][ T254] netdev_get_by_index+0x5e/0x80 [ 9581.412861][ T254] fib6_nh_init+0x3d8/0x1580 [ 9581.412861][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9581.412861][ T254] ip6_route_add+0x1c/0x140 [ 9581.412861][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9581.412861][ T254] inet6_addr_add+0x4f8/0xa40 [ 9581.412861][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9581.412861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9581.412861][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.412861][ T254] netlink_unicast+0x449/0x710 [ 9581.412861][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.412861][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.412861][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.412861][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.412861][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.412861][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9581.412861][ T254] [ 9581.415171][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.415171][ T254] netdev_get_by_index+0x5e/0x80 [ 9581.415171][ T254] fib6_nh_init+0x3d8/0x1580 [ 9581.415171][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9581.415171][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9581.415171][ T254] ipv6_add_addr+0x411/0x2000 [ 9581.415171][ T254] inet6_addr_add+0x30e/0xa40 [ 9581.415171][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9581.415171][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9581.415171][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.415171][ T254] netlink_unicast+0x449/0x710 [ 9581.415171][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.415171][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.415171][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.415171][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.415171][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.415171][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9581.415171][ T254] [ 9581.417464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.417464][ T254] netdev_get_by_index+0x5e/0x80 [ 9581.417464][ T254] fib6_nh_init+0x3d8/0x1580 [ 9581.417464][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9581.417464][ T254] ip6_route_add+0x1c/0x140 [ 9581.417464][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9581.417464][ T254] addrconf_add_dev+0xe2/0x170 [ 9581.417464][ T254] inet6_addr_add+0x12f/0xa40 [ 9581.417464][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9581.417464][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9581.417464][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.417464][ T254] netlink_unicast+0x449/0x710 [ 9581.417464][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.417464][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.417464][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.417464][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.417464][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.417464][ T254] [ 9581.419718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.419718][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9581.419718][ T254] ipv6_find_idev+0x102/0x170 [ 9581.419718][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9581.419718][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9581.419718][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.419718][ T254] netlink_unicast+0x449/0x710 [ 9581.419718][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.419718][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.419718][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.419718][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.419718][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.419718][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9581.419718][ T254] [ 9581.421481][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9581.421481][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9581.421481][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9581.421481][ T254] ipv6_find_idev+0x102/0x170 [ 9581.421481][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9581.421481][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9581.421481][ T254] netlink_rcv_skb+0x130/0x360 [ 9581.421481][ T254] netlink_unicast+0x449/0x710 [ 9581.421481][ T254] netlink_sendmsg+0x723/0xbe0 [ 9581.421481][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9581.421481][ T254] ___sys_sendmsg+0xee/0x170 [ 9581.421481][ T254] __sys_sendmsg+0xcd/0x170 [ 9581.421481][ T254] do_syscall_64+0xc6/0x1e0 [ 9581.421481][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9581.421481][ T254] [ 9591.663852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9591.664413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.664413][ T254] dst_init+0x84/0x4a0 [ 9591.664413][ T254] dst_alloc+0x97/0x150 [ 9591.664413][ T254] ip6_dst_alloc+0x23/0x90 [ 9591.664413][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9591.664413][ T254] ip6_pol_route+0x56f/0x840 [ 9591.664413][ T254] fib6_rule_lookup+0x334/0x630 [ 9591.664413][ T254] ip6_route_output_flags+0x259/0x480 [ 9591.664413][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9591.664413][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9591.664413][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.664413][ T254] netlink_unicast+0x449/0x710 [ 9591.664413][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.664413][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.664413][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.664413][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.664413][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.664413][ T254] [ 9591.666690][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.666690][ T254] netdev_get_by_index+0x5e/0x80 [ 9591.666690][ T254] fib6_nh_init+0x3d8/0x1580 [ 9591.666690][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9591.666690][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9591.666690][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9591.666690][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9591.666690][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9591.666690][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9591.666690][ T254] addrconf_dad_begin+0x310/0x670 [ 9591.666690][ T254] addrconf_dad_work+0x10b/0xab0 [ 9591.666690][ T254] process_one_work+0x84d/0x18a0 [ 9591.666690][ T254] worker_thread+0x587/0xd30 [ 9591.666690][ T254] kthread+0x28a/0x350 [ 9591.666690][ T254] ret_from_fork+0x31/0x70 [ 9591.666690][ T254] ret_from_fork_asm+0x1a/0x30 [ 9591.666690][ T254] [ 9591.668886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.668886][ T254] netdev_get_by_index+0x5e/0x80 [ 9591.668886][ T254] fib6_nh_init+0x3d8/0x1580 [ 9591.668886][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9591.668886][ T254] ip6_route_add+0x1c/0x140 [ 9591.668886][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9591.668886][ T254] inet6_addr_add+0x4f8/0xa40 [ 9591.668886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9591.668886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9591.668886][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.668886][ T254] netlink_unicast+0x449/0x710 [ 9591.668886][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.668886][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.668886][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.668886][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.668886][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.668886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9591.668886][ T254] [ 9591.671203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.671203][ T254] netdev_get_by_index+0x5e/0x80 [ 9591.671203][ T254] fib6_nh_init+0x3d8/0x1580 [ 9591.671203][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9591.671203][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9591.671203][ T254] ipv6_add_addr+0x411/0x2000 [ 9591.671203][ T254] inet6_addr_add+0x30e/0xa40 [ 9591.671203][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9591.671203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9591.671203][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.671203][ T254] netlink_unicast+0x449/0x710 [ 9591.671203][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.671203][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.671203][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.671203][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.671203][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.671203][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9591.671203][ T254] [ 9591.673524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.673524][ T254] netdev_get_by_index+0x5e/0x80 [ 9591.673524][ T254] fib6_nh_init+0x3d8/0x1580 [ 9591.673524][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9591.673524][ T254] ip6_route_add+0x1c/0x140 [ 9591.673524][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9591.673524][ T254] addrconf_add_dev+0xe2/0x170 [ 9591.673524][ T254] inet6_addr_add+0x12f/0xa40 [ 9591.673524][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9591.673524][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9591.673524][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.673524][ T254] netlink_unicast+0x449/0x710 [ 9591.673524][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.673524][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.673524][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.673524][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.673524][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.673524][ T254] [ 9591.675776][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.675776][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9591.675776][ T254] ipv6_find_idev+0x102/0x170 [ 9591.675776][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9591.675776][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9591.675776][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.675776][ T254] netlink_unicast+0x449/0x710 [ 9591.675776][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.675776][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.675776][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.675776][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.675776][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.675776][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9591.675776][ T254] [ 9591.677554][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9591.677554][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9591.677554][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9591.677554][ T254] ipv6_find_idev+0x102/0x170 [ 9591.677554][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9591.677554][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9591.677554][ T254] netlink_rcv_skb+0x130/0x360 [ 9591.677554][ T254] netlink_unicast+0x449/0x710 [ 9591.677554][ T254] netlink_sendmsg+0x723/0xbe0 [ 9591.677554][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9591.677554][ T254] ___sys_sendmsg+0xee/0x170 [ 9591.677554][ T254] __sys_sendmsg+0xcd/0x170 [ 9591.677554][ T254] do_syscall_64+0xc6/0x1e0 [ 9591.677554][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9591.677554][ T254] [ 9601.919865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9601.920412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.920412][ T254] dst_init+0x84/0x4a0 [ 9601.920412][ T254] dst_alloc+0x97/0x150 [ 9601.920412][ T254] ip6_dst_alloc+0x23/0x90 [ 9601.920412][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9601.920412][ T254] ip6_pol_route+0x56f/0x840 [ 9601.920412][ T254] fib6_rule_lookup+0x334/0x630 [ 9601.920412][ T254] ip6_route_output_flags+0x259/0x480 [ 9601.920412][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9601.920412][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9601.920412][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.920412][ T254] netlink_unicast+0x449/0x710 [ 9601.920412][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.920412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.920412][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.920412][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.920412][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.920412][ T254] [ 9601.922672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.922672][ T254] netdev_get_by_index+0x5e/0x80 [ 9601.922672][ T254] fib6_nh_init+0x3d8/0x1580 [ 9601.922672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9601.922672][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9601.922672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9601.922672][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9601.922672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9601.922672][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9601.922672][ T254] addrconf_dad_begin+0x310/0x670 [ 9601.922672][ T254] addrconf_dad_work+0x10b/0xab0 [ 9601.922672][ T254] process_one_work+0x84d/0x18a0 [ 9601.922672][ T254] worker_thread+0x587/0xd30 [ 9601.922672][ T254] kthread+0x28a/0x350 [ 9601.922672][ T254] ret_from_fork+0x31/0x70 [ 9601.922672][ T254] ret_from_fork_asm+0x1a/0x30 [ 9601.922672][ T254] [ 9601.924884][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.924884][ T254] netdev_get_by_index+0x5e/0x80 [ 9601.924884][ T254] fib6_nh_init+0x3d8/0x1580 [ 9601.924884][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9601.924884][ T254] ip6_route_add+0x1c/0x140 [ 9601.924884][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9601.924884][ T254] inet6_addr_add+0x4f8/0xa40 [ 9601.924884][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9601.924884][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9601.924884][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.924884][ T254] netlink_unicast+0x449/0x710 [ 9601.924884][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.924884][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.924884][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.924884][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.924884][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.924884][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9601.924884][ T254] [ 9601.927175][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.927175][ T254] netdev_get_by_index+0x5e/0x80 [ 9601.927175][ T254] fib6_nh_init+0x3d8/0x1580 [ 9601.927175][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9601.927175][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9601.927175][ T254] ipv6_add_addr+0x411/0x2000 [ 9601.927175][ T254] inet6_addr_add+0x30e/0xa40 [ 9601.927175][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9601.927175][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9601.927175][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.927175][ T254] netlink_unicast+0x449/0x710 [ 9601.927175][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.927175][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.927175][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.927175][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.927175][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.927175][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9601.927175][ T254] [ 9601.929466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.929466][ T254] netdev_get_by_index+0x5e/0x80 [ 9601.929466][ T254] fib6_nh_init+0x3d8/0x1580 [ 9601.929466][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9601.929466][ T254] ip6_route_add+0x1c/0x140 [ 9601.929466][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9601.929466][ T254] addrconf_add_dev+0xe2/0x170 [ 9601.929466][ T254] inet6_addr_add+0x12f/0xa40 [ 9601.929466][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9601.929466][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9601.929466][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.929466][ T254] netlink_unicast+0x449/0x710 [ 9601.929466][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.929466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.929466][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.929466][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.929466][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.929466][ T254] [ 9601.931722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.931722][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9601.931722][ T254] ipv6_find_idev+0x102/0x170 [ 9601.931722][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9601.931722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9601.931722][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.931722][ T254] netlink_unicast+0x449/0x710 [ 9601.931722][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.931722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.931722][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.931722][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.931722][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.931722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9601.931722][ T254] [ 9601.933488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9601.933488][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9601.933488][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9601.933488][ T254] ipv6_find_idev+0x102/0x170 [ 9601.933488][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9601.933488][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9601.933488][ T254] netlink_rcv_skb+0x130/0x360 [ 9601.933488][ T254] netlink_unicast+0x449/0x710 [ 9601.933488][ T254] netlink_sendmsg+0x723/0xbe0 [ 9601.933488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9601.933488][ T254] ___sys_sendmsg+0xee/0x170 [ 9601.933488][ T254] __sys_sendmsg+0xcd/0x170 [ 9601.933488][ T254] do_syscall_64+0xc6/0x1e0 [ 9601.933488][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9601.933488][ T254] [ 9612.175853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9612.176396][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.176396][ T254] dst_init+0x84/0x4a0 [ 9612.176396][ T254] dst_alloc+0x97/0x150 [ 9612.176396][ T254] ip6_dst_alloc+0x23/0x90 [ 9612.176396][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9612.176396][ T254] ip6_pol_route+0x56f/0x840 [ 9612.176396][ T254] fib6_rule_lookup+0x334/0x630 [ 9612.176396][ T254] ip6_route_output_flags+0x259/0x480 [ 9612.176396][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9612.176396][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9612.176396][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.176396][ T254] netlink_unicast+0x449/0x710 [ 9612.176396][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.176396][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.176396][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.176396][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.176396][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.176396][ T254] [ 9612.178657][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.178657][ T254] netdev_get_by_index+0x5e/0x80 [ 9612.178657][ T254] fib6_nh_init+0x3d8/0x1580 [ 9612.178657][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9612.178657][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9612.178657][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9612.178657][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9612.178657][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9612.178657][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9612.178657][ T254] addrconf_dad_begin+0x310/0x670 [ 9612.178657][ T254] addrconf_dad_work+0x10b/0xab0 [ 9612.178657][ T254] process_one_work+0x84d/0x18a0 [ 9612.178657][ T254] worker_thread+0x587/0xd30 [ 9612.178657][ T254] kthread+0x28a/0x350 [ 9612.178657][ T254] ret_from_fork+0x31/0x70 [ 9612.178657][ T254] ret_from_fork_asm+0x1a/0x30 [ 9612.178657][ T254] [ 9612.180889][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.180889][ T254] netdev_get_by_index+0x5e/0x80 [ 9612.180889][ T254] fib6_nh_init+0x3d8/0x1580 [ 9612.180889][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9612.180889][ T254] ip6_route_add+0x1c/0x140 [ 9612.180889][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9612.180889][ T254] inet6_addr_add+0x4f8/0xa40 [ 9612.180889][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9612.180889][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9612.180889][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.180889][ T254] netlink_unicast+0x449/0x710 [ 9612.180889][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.180889][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.180889][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.180889][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.180889][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.180889][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9612.180889][ T254] [ 9612.183195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.183195][ T254] netdev_get_by_index+0x5e/0x80 [ 9612.183195][ T254] fib6_nh_init+0x3d8/0x1580 [ 9612.183195][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9612.183195][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9612.183195][ T254] ipv6_add_addr+0x411/0x2000 [ 9612.183195][ T254] inet6_addr_add+0x30e/0xa40 [ 9612.183195][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9612.183195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9612.183195][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.183195][ T254] netlink_unicast+0x449/0x710 [ 9612.183195][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.183195][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.183195][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.183195][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.183195][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.183195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9612.183195][ T254] [ 9612.185488][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.185488][ T254] netdev_get_by_index+0x5e/0x80 [ 9612.185488][ T254] fib6_nh_init+0x3d8/0x1580 [ 9612.185488][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9612.185488][ T254] ip6_route_add+0x1c/0x140 [ 9612.185488][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9612.185488][ T254] addrconf_add_dev+0xe2/0x170 [ 9612.185488][ T254] inet6_addr_add+0x12f/0xa40 [ 9612.185488][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9612.185488][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9612.185488][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.185488][ T254] netlink_unicast+0x449/0x710 [ 9612.185488][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.185488][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.185488][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.185488][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.185488][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.185488][ T254] [ 9612.187758][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.187758][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9612.187758][ T254] ipv6_find_idev+0x102/0x170 [ 9612.187758][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9612.187758][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9612.187758][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.187758][ T254] netlink_unicast+0x449/0x710 [ 9612.187758][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.187758][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.187758][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.187758][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.187758][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.187758][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9612.187758][ T254] [ 9612.189524][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9612.189524][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9612.189524][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9612.189524][ T254] ipv6_find_idev+0x102/0x170 [ 9612.189524][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9612.189524][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9612.189524][ T254] netlink_rcv_skb+0x130/0x360 [ 9612.189524][ T254] netlink_unicast+0x449/0x710 [ 9612.189524][ T254] netlink_sendmsg+0x723/0xbe0 [ 9612.189524][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9612.189524][ T254] ___sys_sendmsg+0xee/0x170 [ 9612.189524][ T254] __sys_sendmsg+0xcd/0x170 [ 9612.189524][ T254] do_syscall_64+0xc6/0x1e0 [ 9612.189524][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9612.189524][ T254] [ 9622.311847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9622.312397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.312397][ T254] dst_init+0x84/0x4a0 [ 9622.312397][ T254] dst_alloc+0x97/0x150 [ 9622.312397][ T254] ip6_dst_alloc+0x23/0x90 [ 9622.312397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9622.312397][ T254] ip6_pol_route+0x56f/0x840 [ 9622.312397][ T254] fib6_rule_lookup+0x334/0x630 [ 9622.312397][ T254] ip6_route_output_flags+0x259/0x480 [ 9622.312397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9622.312397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9622.312397][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.312397][ T254] netlink_unicast+0x449/0x710 [ 9622.312397][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.312397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.312397][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.312397][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.312397][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.312397][ T254] [ 9622.314672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.314672][ T254] netdev_get_by_index+0x5e/0x80 [ 9622.314672][ T254] fib6_nh_init+0x3d8/0x1580 [ 9622.314672][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9622.314672][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9622.314672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9622.314672][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9622.314672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9622.314672][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9622.314672][ T254] addrconf_dad_begin+0x310/0x670 [ 9622.314672][ T254] addrconf_dad_work+0x10b/0xab0 [ 9622.314672][ T254] process_one_work+0x84d/0x18a0 [ 9622.314672][ T254] worker_thread+0x587/0xd30 [ 9622.314672][ T254] kthread+0x28a/0x350 [ 9622.314672][ T254] ret_from_fork+0x31/0x70 [ 9622.314672][ T254] ret_from_fork_asm+0x1a/0x30 [ 9622.314672][ T254] [ 9622.316870][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.316870][ T254] netdev_get_by_index+0x5e/0x80 [ 9622.316870][ T254] fib6_nh_init+0x3d8/0x1580 [ 9622.316870][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9622.316870][ T254] ip6_route_add+0x1c/0x140 [ 9622.316870][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9622.316870][ T254] inet6_addr_add+0x4f8/0xa40 [ 9622.316870][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9622.316870][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9622.316870][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.316870][ T254] netlink_unicast+0x449/0x710 [ 9622.316870][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.316870][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.316870][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.316870][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.316870][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.316870][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9622.316870][ T254] [ 9622.319164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.319164][ T254] netdev_get_by_index+0x5e/0x80 [ 9622.319164][ T254] fib6_nh_init+0x3d8/0x1580 [ 9622.319164][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9622.319164][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9622.319164][ T254] ipv6_add_addr+0x411/0x2000 [ 9622.319164][ T254] inet6_addr_add+0x30e/0xa40 [ 9622.319164][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9622.319164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9622.319164][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.319164][ T254] netlink_unicast+0x449/0x710 [ 9622.319164][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.319164][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.319164][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.319164][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.319164][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.319164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9622.319164][ T254] [ 9622.321465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.321465][ T254] netdev_get_by_index+0x5e/0x80 [ 9622.321465][ T254] fib6_nh_init+0x3d8/0x1580 [ 9622.321465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9622.321465][ T254] ip6_route_add+0x1c/0x140 [ 9622.321465][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9622.321465][ T254] addrconf_add_dev+0xe2/0x170 [ 9622.321465][ T254] inet6_addr_add+0x12f/0xa40 [ 9622.321465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9622.321465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9622.321465][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.321465][ T254] netlink_unicast+0x449/0x710 [ 9622.321465][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.321465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.321465][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.321465][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.321465][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.321465][ T254] [ 9622.323716][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.323716][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9622.323716][ T254] ipv6_find_idev+0x102/0x170 [ 9622.323716][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9622.323716][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9622.323716][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.323716][ T254] netlink_unicast+0x449/0x710 [ 9622.323716][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.323716][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.323716][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.323716][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.323716][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.323716][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9622.323716][ T254] [ 9622.325483][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9622.325483][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9622.325483][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9622.325483][ T254] ipv6_find_idev+0x102/0x170 [ 9622.325483][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9622.325483][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9622.325483][ T254] netlink_rcv_skb+0x130/0x360 [ 9622.325483][ T254] netlink_unicast+0x449/0x710 [ 9622.325483][ T254] netlink_sendmsg+0x723/0xbe0 [ 9622.325483][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9622.325483][ T254] ___sys_sendmsg+0xee/0x170 [ 9622.325483][ T254] __sys_sendmsg+0xcd/0x170 [ 9622.325483][ T254] do_syscall_64+0xc6/0x1e0 [ 9622.325483][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9622.325483][ T254] [ 9632.567865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9632.568397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.568397][ T254] dst_init+0x84/0x4a0 [ 9632.568397][ T254] dst_alloc+0x97/0x150 [ 9632.568397][ T254] ip6_dst_alloc+0x23/0x90 [ 9632.568397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9632.568397][ T254] ip6_pol_route+0x56f/0x840 [ 9632.568397][ T254] fib6_rule_lookup+0x334/0x630 [ 9632.568397][ T254] ip6_route_output_flags+0x259/0x480 [ 9632.568397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9632.568397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9632.568397][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.568397][ T254] netlink_unicast+0x449/0x710 [ 9632.568397][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.568397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.568397][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.568397][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.568397][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.568397][ T254] [ 9632.570650][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.570650][ T254] netdev_get_by_index+0x5e/0x80 [ 9632.570650][ T254] fib6_nh_init+0x3d8/0x1580 [ 9632.570650][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9632.570650][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9632.570650][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9632.570650][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9632.570650][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9632.570650][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9632.570650][ T254] addrconf_dad_begin+0x310/0x670 [ 9632.570650][ T254] addrconf_dad_work+0x10b/0xab0 [ 9632.570650][ T254] process_one_work+0x84d/0x18a0 [ 9632.570650][ T254] worker_thread+0x587/0xd30 [ 9632.570650][ T254] kthread+0x28a/0x350 [ 9632.570650][ T254] ret_from_fork+0x31/0x70 [ 9632.570650][ T254] ret_from_fork_asm+0x1a/0x30 [ 9632.570650][ T254] [ 9632.572855][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.572855][ T254] netdev_get_by_index+0x5e/0x80 [ 9632.572855][ T254] fib6_nh_init+0x3d8/0x1580 [ 9632.572855][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9632.572855][ T254] ip6_route_add+0x1c/0x140 [ 9632.572855][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9632.572855][ T254] inet6_addr_add+0x4f8/0xa40 [ 9632.572855][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9632.572855][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9632.572855][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.572855][ T254] netlink_unicast+0x449/0x710 [ 9632.572855][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.572855][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.572855][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.572855][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.572855][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.572855][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9632.572855][ T254] [ 9632.575156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.575156][ T254] netdev_get_by_index+0x5e/0x80 [ 9632.575156][ T254] fib6_nh_init+0x3d8/0x1580 [ 9632.575156][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9632.575156][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9632.575156][ T254] ipv6_add_addr+0x411/0x2000 [ 9632.575156][ T254] inet6_addr_add+0x30e/0xa40 [ 9632.575156][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9632.575156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9632.575156][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.575156][ T254] netlink_unicast+0x449/0x710 [ 9632.575156][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.575156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.575156][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.575156][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.575156][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.575156][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9632.575156][ T254] [ 9632.577987][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.577987][ T254] netdev_get_by_index+0x5e/0x80 [ 9632.577987][ T254] fib6_nh_init+0x3d8/0x1580 [ 9632.577987][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9632.577987][ T254] ip6_route_add+0x1c/0x140 [ 9632.577987][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9632.577987][ T254] addrconf_add_dev+0xe2/0x170 [ 9632.577987][ T254] inet6_addr_add+0x12f/0xa40 [ 9632.577987][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9632.577987][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9632.577987][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.577987][ T254] netlink_unicast+0x449/0x710 [ 9632.577987][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.577987][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.577987][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.577987][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.577987][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.577987][ T254] [ 9632.580237][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.580237][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9632.580237][ T254] ipv6_find_idev+0x102/0x170 [ 9632.580237][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9632.580237][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9632.580237][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.580237][ T254] netlink_unicast+0x449/0x710 [ 9632.580237][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.580237][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.580237][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.580237][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.580237][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.580237][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9632.580237][ T254] [ 9632.582388][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9632.582388][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9632.582388][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9632.582388][ T254] ipv6_find_idev+0x102/0x170 [ 9632.582388][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9632.582388][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9632.582388][ T254] netlink_rcv_skb+0x130/0x360 [ 9632.582388][ T254] netlink_unicast+0x449/0x710 [ 9632.582388][ T254] netlink_sendmsg+0x723/0xbe0 [ 9632.582388][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9632.582388][ T254] ___sys_sendmsg+0xee/0x170 [ 9632.582388][ T254] __sys_sendmsg+0xcd/0x170 [ 9632.582388][ T254] do_syscall_64+0xc6/0x1e0 [ 9632.582388][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9632.582388][ T254] [ 9642.823875][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9642.824416][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.824416][ T254] dst_init+0x84/0x4a0 [ 9642.824416][ T254] dst_alloc+0x97/0x150 [ 9642.824416][ T254] ip6_dst_alloc+0x23/0x90 [ 9642.824416][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9642.824416][ T254] ip6_pol_route+0x56f/0x840 [ 9642.824416][ T254] fib6_rule_lookup+0x334/0x630 [ 9642.824416][ T254] ip6_route_output_flags+0x259/0x480 [ 9642.824416][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9642.824416][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9642.824416][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.824416][ T254] netlink_unicast+0x449/0x710 [ 9642.824416][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.824416][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.824416][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.824416][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.824416][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.824416][ T254] [ 9642.826685][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.826685][ T254] netdev_get_by_index+0x5e/0x80 [ 9642.826685][ T254] fib6_nh_init+0x3d8/0x1580 [ 9642.826685][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9642.826685][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9642.826685][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9642.826685][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9642.826685][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9642.826685][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9642.826685][ T254] addrconf_dad_begin+0x310/0x670 [ 9642.826685][ T254] addrconf_dad_work+0x10b/0xab0 [ 9642.826685][ T254] process_one_work+0x84d/0x18a0 [ 9642.826685][ T254] worker_thread+0x587/0xd30 [ 9642.826685][ T254] kthread+0x28a/0x350 [ 9642.826685][ T254] ret_from_fork+0x31/0x70 [ 9642.826685][ T254] ret_from_fork_asm+0x1a/0x30 [ 9642.826685][ T254] [ 9642.828890][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.828890][ T254] netdev_get_by_index+0x5e/0x80 [ 9642.828890][ T254] fib6_nh_init+0x3d8/0x1580 [ 9642.828890][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9642.828890][ T254] ip6_route_add+0x1c/0x140 [ 9642.828890][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9642.828890][ T254] inet6_addr_add+0x4f8/0xa40 [ 9642.828890][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9642.828890][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9642.828890][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.828890][ T254] netlink_unicast+0x449/0x710 [ 9642.828890][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.828890][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.828890][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.828890][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.828890][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.828890][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9642.828890][ T254] [ 9642.831187][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.831187][ T254] netdev_get_by_index+0x5e/0x80 [ 9642.831187][ T254] fib6_nh_init+0x3d8/0x1580 [ 9642.831187][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9642.831187][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9642.831187][ T254] ipv6_add_addr+0x411/0x2000 [ 9642.831187][ T254] inet6_addr_add+0x30e/0xa40 [ 9642.831187][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9642.831187][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9642.831187][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.831187][ T254] netlink_unicast+0x449/0x710 [ 9642.831187][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.831187][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.831187][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.831187][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.831187][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.831187][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9642.831187][ T254] [ 9642.833499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.833499][ T254] netdev_get_by_index+0x5e/0x80 [ 9642.833499][ T254] fib6_nh_init+0x3d8/0x1580 [ 9642.833499][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9642.833499][ T254] ip6_route_add+0x1c/0x140 [ 9642.833499][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9642.833499][ T254] addrconf_add_dev+0xe2/0x170 [ 9642.833499][ T254] inet6_addr_add+0x12f/0xa40 [ 9642.833499][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9642.833499][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9642.833499][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.833499][ T254] netlink_unicast+0x449/0x710 [ 9642.833499][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.833499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.833499][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.833499][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.833499][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.833499][ T254] [ 9642.835760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.835760][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9642.835760][ T254] ipv6_find_idev+0x102/0x170 [ 9642.835760][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9642.835760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9642.835760][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.835760][ T254] netlink_unicast+0x449/0x710 [ 9642.835760][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.835760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.835760][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.835760][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.835760][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.835760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9642.835760][ T254] [ 9642.837531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9642.837531][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9642.837531][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9642.837531][ T254] ipv6_find_idev+0x102/0x170 [ 9642.837531][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9642.837531][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9642.837531][ T254] netlink_rcv_skb+0x130/0x360 [ 9642.837531][ T254] netlink_unicast+0x449/0x710 [ 9642.837531][ T254] netlink_sendmsg+0x723/0xbe0 [ 9642.837531][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9642.837531][ T254] ___sys_sendmsg+0xee/0x170 [ 9642.837531][ T254] __sys_sendmsg+0xcd/0x170 [ 9642.837531][ T254] do_syscall_64+0xc6/0x1e0 [ 9642.837531][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9642.837531][ T254] [ 9653.079916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9653.080466][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.080466][ T254] dst_init+0x84/0x4a0 [ 9653.080466][ T254] dst_alloc+0x97/0x150 [ 9653.080466][ T254] ip6_dst_alloc+0x23/0x90 [ 9653.080466][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9653.080466][ T254] ip6_pol_route+0x56f/0x840 [ 9653.080466][ T254] fib6_rule_lookup+0x334/0x630 [ 9653.080466][ T254] ip6_route_output_flags+0x259/0x480 [ 9653.080466][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9653.080466][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9653.080466][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.080466][ T254] netlink_unicast+0x449/0x710 [ 9653.080466][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.080466][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.080466][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.080466][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.080466][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.080466][ T254] [ 9653.082741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.082741][ T254] netdev_get_by_index+0x5e/0x80 [ 9653.082741][ T254] fib6_nh_init+0x3d8/0x1580 [ 9653.082741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9653.082741][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9653.082741][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9653.082741][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9653.082741][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9653.082741][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9653.082741][ T254] addrconf_dad_begin+0x310/0x670 [ 9653.082741][ T254] addrconf_dad_work+0x10b/0xab0 [ 9653.082741][ T254] process_one_work+0x84d/0x18a0 [ 9653.082741][ T254] worker_thread+0x587/0xd30 [ 9653.082741][ T254] kthread+0x28a/0x350 [ 9653.082741][ T254] ret_from_fork+0x31/0x70 [ 9653.082741][ T254] ret_from_fork_asm+0x1a/0x30 [ 9653.082741][ T254] [ 9653.084971][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.084971][ T254] netdev_get_by_index+0x5e/0x80 [ 9653.084971][ T254] fib6_nh_init+0x3d8/0x1580 [ 9653.084971][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9653.084971][ T254] ip6_route_add+0x1c/0x140 [ 9653.084971][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9653.084971][ T254] inet6_addr_add+0x4f8/0xa40 [ 9653.084971][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9653.084971][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9653.084971][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.084971][ T254] netlink_unicast+0x449/0x710 [ 9653.084971][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.084971][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.084971][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.084971][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.084971][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.084971][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9653.084971][ T254] [ 9653.087263][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.087263][ T254] netdev_get_by_index+0x5e/0x80 [ 9653.087263][ T254] fib6_nh_init+0x3d8/0x1580 [ 9653.087263][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9653.087263][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9653.087263][ T254] ipv6_add_addr+0x411/0x2000 [ 9653.087263][ T254] inet6_addr_add+0x30e/0xa40 [ 9653.087263][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9653.087263][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9653.087263][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.087263][ T254] netlink_unicast+0x449/0x710 [ 9653.087263][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.087263][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.087263][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.087263][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.087263][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.087263][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9653.087263][ T254] [ 9653.089572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.089572][ T254] netdev_get_by_index+0x5e/0x80 [ 9653.089572][ T254] fib6_nh_init+0x3d8/0x1580 [ 9653.089572][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9653.089572][ T254] ip6_route_add+0x1c/0x140 [ 9653.089572][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9653.089572][ T254] addrconf_add_dev+0xe2/0x170 [ 9653.089572][ T254] inet6_addr_add+0x12f/0xa40 [ 9653.089572][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9653.089572][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9653.089572][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.089572][ T254] netlink_unicast+0x449/0x710 [ 9653.089572][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.089572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.089572][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.089572][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.089572][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.089572][ T254] [ 9653.091836][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.091836][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9653.091836][ T254] ipv6_find_idev+0x102/0x170 [ 9653.091836][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9653.091836][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9653.091836][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.091836][ T254] netlink_unicast+0x449/0x710 [ 9653.091836][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.091836][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.091836][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.091836][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.091836][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.091836][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9653.091836][ T254] [ 9653.093606][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9653.093606][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9653.093606][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9653.093606][ T254] ipv6_find_idev+0x102/0x170 [ 9653.093606][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9653.093606][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9653.093606][ T254] netlink_rcv_skb+0x130/0x360 [ 9653.093606][ T254] netlink_unicast+0x449/0x710 [ 9653.093606][ T254] netlink_sendmsg+0x723/0xbe0 [ 9653.093606][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9653.093606][ T254] ___sys_sendmsg+0xee/0x170 [ 9653.093606][ T254] __sys_sendmsg+0xcd/0x170 [ 9653.093606][ T254] do_syscall_64+0xc6/0x1e0 [ 9653.093606][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9653.093606][ T254] [ 9663.215941][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9663.216530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.216530][ T254] dst_init+0x84/0x4a0 [ 9663.216530][ T254] dst_alloc+0x97/0x150 [ 9663.216530][ T254] ip6_dst_alloc+0x23/0x90 [ 9663.216530][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9663.216530][ T254] ip6_pol_route+0x56f/0x840 [ 9663.216530][ T254] fib6_rule_lookup+0x334/0x630 [ 9663.216530][ T254] ip6_route_output_flags+0x259/0x480 [ 9663.216530][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9663.216530][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9663.216530][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.216530][ T254] netlink_unicast+0x449/0x710 [ 9663.216530][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.216530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.216530][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.216530][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.216530][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.216530][ T254] [ 9663.218804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.218804][ T254] netdev_get_by_index+0x5e/0x80 [ 9663.218804][ T254] fib6_nh_init+0x3d8/0x1580 [ 9663.218804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9663.218804][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9663.218804][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9663.218804][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9663.218804][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9663.218804][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9663.218804][ T254] addrconf_dad_begin+0x310/0x670 [ 9663.218804][ T254] addrconf_dad_work+0x10b/0xab0 [ 9663.218804][ T254] process_one_work+0x84d/0x18a0 [ 9663.218804][ T254] worker_thread+0x587/0xd30 [ 9663.218804][ T254] kthread+0x28a/0x350 [ 9663.218804][ T254] ret_from_fork+0x31/0x70 [ 9663.218804][ T254] ret_from_fork_asm+0x1a/0x30 [ 9663.218804][ T254] [ 9663.221018][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.221018][ T254] netdev_get_by_index+0x5e/0x80 [ 9663.221018][ T254] fib6_nh_init+0x3d8/0x1580 [ 9663.221018][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9663.221018][ T254] ip6_route_add+0x1c/0x140 [ 9663.221018][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9663.221018][ T254] inet6_addr_add+0x4f8/0xa40 [ 9663.221018][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9663.221018][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9663.221018][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.221018][ T254] netlink_unicast+0x449/0x710 [ 9663.221018][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.221018][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.221018][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.221018][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.221018][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.221018][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9663.221018][ T254] [ 9663.223347][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.223347][ T254] netdev_get_by_index+0x5e/0x80 [ 9663.223347][ T254] fib6_nh_init+0x3d8/0x1580 [ 9663.223347][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9663.223347][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9663.223347][ T254] ipv6_add_addr+0x411/0x2000 [ 9663.223347][ T254] inet6_addr_add+0x30e/0xa40 [ 9663.223347][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9663.223347][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9663.223347][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.223347][ T254] netlink_unicast+0x449/0x710 [ 9663.223347][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.223347][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.223347][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.223347][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.223347][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.223347][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9663.223347][ T254] [ 9663.225661][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.225661][ T254] netdev_get_by_index+0x5e/0x80 [ 9663.225661][ T254] fib6_nh_init+0x3d8/0x1580 [ 9663.225661][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9663.225661][ T254] ip6_route_add+0x1c/0x140 [ 9663.225661][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9663.225661][ T254] addrconf_add_dev+0xe2/0x170 [ 9663.225661][ T254] inet6_addr_add+0x12f/0xa40 [ 9663.225661][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9663.225661][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9663.225661][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.225661][ T254] netlink_unicast+0x449/0x710 [ 9663.225661][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.225661][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.225661][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.225661][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.225661][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.225661][ T254] [ 9663.227925][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.227925][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9663.227925][ T254] ipv6_find_idev+0x102/0x170 [ 9663.227925][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9663.227925][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9663.227925][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.227925][ T254] netlink_unicast+0x449/0x710 [ 9663.227925][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.227925][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.227925][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.227925][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.227925][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.227925][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9663.227925][ T254] [ 9663.229699][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9663.229699][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9663.229699][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9663.229699][ T254] ipv6_find_idev+0x102/0x170 [ 9663.229699][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9663.229699][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9663.229699][ T254] netlink_rcv_skb+0x130/0x360 [ 9663.229699][ T254] netlink_unicast+0x449/0x710 [ 9663.229699][ T254] netlink_sendmsg+0x723/0xbe0 [ 9663.229699][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9663.229699][ T254] ___sys_sendmsg+0xee/0x170 [ 9663.229699][ T254] __sys_sendmsg+0xcd/0x170 [ 9663.229699][ T254] do_syscall_64+0xc6/0x1e0 [ 9663.229699][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9663.229699][ T254] [ 9673.479934][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9673.480506][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.480506][ T254] dst_init+0x84/0x4a0 [ 9673.480506][ T254] dst_alloc+0x97/0x150 [ 9673.480506][ T254] ip6_dst_alloc+0x23/0x90 [ 9673.480506][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9673.480506][ T254] ip6_pol_route+0x56f/0x840 [ 9673.480506][ T254] fib6_rule_lookup+0x334/0x630 [ 9673.480506][ T254] ip6_route_output_flags+0x259/0x480 [ 9673.480506][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9673.480506][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9673.480506][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.480506][ T254] netlink_unicast+0x449/0x710 [ 9673.480506][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.480506][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.480506][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.480506][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.480506][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.480506][ T254] [ 9673.482784][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.482784][ T254] netdev_get_by_index+0x5e/0x80 [ 9673.482784][ T254] fib6_nh_init+0x3d8/0x1580 [ 9673.482784][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9673.482784][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9673.482784][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9673.482784][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9673.482784][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9673.482784][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9673.482784][ T254] addrconf_dad_begin+0x310/0x670 [ 9673.482784][ T254] addrconf_dad_work+0x10b/0xab0 [ 9673.482784][ T254] process_one_work+0x84d/0x18a0 [ 9673.482784][ T254] worker_thread+0x587/0xd30 [ 9673.482784][ T254] kthread+0x28a/0x350 [ 9673.482784][ T254] ret_from_fork+0x31/0x70 [ 9673.482784][ T254] ret_from_fork_asm+0x1a/0x30 [ 9673.482784][ T254] [ 9673.484984][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.484984][ T254] netdev_get_by_index+0x5e/0x80 [ 9673.484984][ T254] fib6_nh_init+0x3d8/0x1580 [ 9673.484984][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9673.484984][ T254] ip6_route_add+0x1c/0x140 [ 9673.484984][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9673.484984][ T254] inet6_addr_add+0x4f8/0xa40 [ 9673.484984][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9673.484984][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9673.484984][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.484984][ T254] netlink_unicast+0x449/0x710 [ 9673.484984][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.484984][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.484984][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.484984][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.484984][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.484984][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9673.484984][ T254] [ 9673.487291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.487291][ T254] netdev_get_by_index+0x5e/0x80 [ 9673.487291][ T254] fib6_nh_init+0x3d8/0x1580 [ 9673.487291][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9673.487291][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9673.487291][ T254] ipv6_add_addr+0x411/0x2000 [ 9673.487291][ T254] inet6_addr_add+0x30e/0xa40 [ 9673.487291][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9673.487291][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9673.487291][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.487291][ T254] netlink_unicast+0x449/0x710 [ 9673.487291][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.487291][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.487291][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.487291][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.487291][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.487291][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9673.487291][ T254] [ 9673.489588][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.489588][ T254] netdev_get_by_index+0x5e/0x80 [ 9673.489588][ T254] fib6_nh_init+0x3d8/0x1580 [ 9673.489588][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9673.489588][ T254] ip6_route_add+0x1c/0x140 [ 9673.489588][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9673.489588][ T254] addrconf_add_dev+0xe2/0x170 [ 9673.489588][ T254] inet6_addr_add+0x12f/0xa40 [ 9673.489588][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9673.489588][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9673.489588][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.489588][ T254] netlink_unicast+0x449/0x710 [ 9673.489588][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.489588][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.489588][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.489588][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.489588][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.489588][ T254] [ 9673.491878][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.491878][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9673.491878][ T254] ipv6_find_idev+0x102/0x170 [ 9673.491878][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9673.491878][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9673.491878][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.491878][ T254] netlink_unicast+0x449/0x710 [ 9673.491878][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.491878][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.491878][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.491878][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.491878][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.491878][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9673.491878][ T254] [ 9673.493672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9673.493672][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9673.493672][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9673.493672][ T254] ipv6_find_idev+0x102/0x170 [ 9673.493672][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9673.493672][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9673.493672][ T254] netlink_rcv_skb+0x130/0x360 [ 9673.493672][ T254] netlink_unicast+0x449/0x710 [ 9673.493672][ T254] netlink_sendmsg+0x723/0xbe0 [ 9673.493672][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9673.493672][ T254] ___sys_sendmsg+0xee/0x170 [ 9673.493672][ T254] __sys_sendmsg+0xcd/0x170 [ 9673.493672][ T254] do_syscall_64+0xc6/0x1e0 [ 9673.493672][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9673.493672][ T254] [ 9683.735915][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9683.736457][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.736457][ T254] dst_init+0x84/0x4a0 [ 9683.736457][ T254] dst_alloc+0x97/0x150 [ 9683.736457][ T254] ip6_dst_alloc+0x23/0x90 [ 9683.736457][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9683.736457][ T254] ip6_pol_route+0x56f/0x840 [ 9683.736457][ T254] fib6_rule_lookup+0x334/0x630 [ 9683.736457][ T254] ip6_route_output_flags+0x259/0x480 [ 9683.736457][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9683.736457][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9683.736457][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.736457][ T254] netlink_unicast+0x449/0x710 [ 9683.736457][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.736457][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.736457][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.736457][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.736457][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.736457][ T254] [ 9683.738690][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.738690][ T254] netdev_get_by_index+0x5e/0x80 [ 9683.738690][ T254] fib6_nh_init+0x3d8/0x1580 [ 9683.738690][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9683.738690][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9683.738690][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9683.738690][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9683.738690][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9683.738690][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9683.738690][ T254] addrconf_dad_begin+0x310/0x670 [ 9683.738690][ T254] addrconf_dad_work+0x10b/0xab0 [ 9683.738690][ T254] process_one_work+0x84d/0x18a0 [ 9683.738690][ T254] worker_thread+0x587/0xd30 [ 9683.738690][ T254] kthread+0x28a/0x350 [ 9683.738690][ T254] ret_from_fork+0x31/0x70 [ 9683.738690][ T254] ret_from_fork_asm+0x1a/0x30 [ 9683.738690][ T254] [ 9683.740832][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.740832][ T254] netdev_get_by_index+0x5e/0x80 [ 9683.740832][ T254] fib6_nh_init+0x3d8/0x1580 [ 9683.740832][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9683.740832][ T254] ip6_route_add+0x1c/0x140 [ 9683.740832][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9683.740832][ T254] inet6_addr_add+0x4f8/0xa40 [ 9683.740832][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9683.740832][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9683.740832][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.740832][ T254] netlink_unicast+0x449/0x710 [ 9683.740832][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.740832][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.740832][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.740832][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.740832][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.740832][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9683.740832][ T254] [ 9683.743080][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.743080][ T254] netdev_get_by_index+0x5e/0x80 [ 9683.743080][ T254] fib6_nh_init+0x3d8/0x1580 [ 9683.743080][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9683.743080][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9683.743080][ T254] ipv6_add_addr+0x411/0x2000 [ 9683.743080][ T254] inet6_addr_add+0x30e/0xa40 [ 9683.743080][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9683.743080][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9683.743080][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.743080][ T254] netlink_unicast+0x449/0x710 [ 9683.743080][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.743080][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.743080][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.743080][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.743080][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.743080][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9683.743080][ T254] [ 9683.745319][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.745319][ T254] netdev_get_by_index+0x5e/0x80 [ 9683.745319][ T254] fib6_nh_init+0x3d8/0x1580 [ 9683.745319][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9683.745319][ T254] ip6_route_add+0x1c/0x140 [ 9683.745319][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9683.745319][ T254] addrconf_add_dev+0xe2/0x170 [ 9683.745319][ T254] inet6_addr_add+0x12f/0xa40 [ 9683.745319][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9683.745319][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9683.745319][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.745319][ T254] netlink_unicast+0x449/0x710 [ 9683.745319][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.745319][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.745319][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.745319][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.745319][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.745319][ T254] [ 9683.747535][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.747535][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9683.747535][ T254] ipv6_find_idev+0x102/0x170 [ 9683.747535][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9683.747535][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9683.747535][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.747535][ T254] netlink_unicast+0x449/0x710 [ 9683.747535][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.747535][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.747535][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.747535][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.747535][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.747535][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9683.747535][ T254] [ 9683.749260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9683.749260][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9683.749260][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9683.749260][ T254] ipv6_find_idev+0x102/0x170 [ 9683.749260][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9683.749260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9683.749260][ T254] netlink_rcv_skb+0x130/0x360 [ 9683.749260][ T254] netlink_unicast+0x449/0x710 [ 9683.749260][ T254] netlink_sendmsg+0x723/0xbe0 [ 9683.749260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9683.749260][ T254] ___sys_sendmsg+0xee/0x170 [ 9683.749260][ T254] __sys_sendmsg+0xcd/0x170 [ 9683.749260][ T254] do_syscall_64+0xc6/0x1e0 [ 9683.749260][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9683.749260][ T254] [ 9693.991885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9693.992417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9693.992417][ T254] dst_init+0x84/0x4a0 [ 9693.992417][ T254] dst_alloc+0x97/0x150 [ 9693.992417][ T254] ip6_dst_alloc+0x23/0x90 [ 9693.992417][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9693.992417][ T254] ip6_pol_route+0x56f/0x840 [ 9693.992417][ T254] fib6_rule_lookup+0x334/0x630 [ 9693.992417][ T254] ip6_route_output_flags+0x259/0x480 [ 9693.992417][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9693.992417][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9693.992417][ T254] netlink_rcv_skb+0x130/0x360 [ 9693.992417][ T254] netlink_unicast+0x449/0x710 [ 9693.992417][ T254] netlink_sendmsg+0x723/0xbe0 [ 9693.992417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9693.992417][ T254] ___sys_sendmsg+0xee/0x170 [ 9693.992417][ T254] __sys_sendmsg+0xcd/0x170 [ 9693.992417][ T254] do_syscall_64+0xc6/0x1e0 [ 9693.992417][ T254] [ 9693.994652][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9693.994652][ T254] netdev_get_by_index+0x5e/0x80 [ 9693.994652][ T254] fib6_nh_init+0x3d8/0x1580 [ 9693.994652][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9693.994652][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9693.994652][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9693.994652][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9693.994652][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9693.994652][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9693.994652][ T254] addrconf_dad_begin+0x310/0x670 [ 9693.994652][ T254] addrconf_dad_work+0x10b/0xab0 [ 9693.994652][ T254] process_one_work+0x84d/0x18a0 [ 9693.994652][ T254] worker_thread+0x587/0xd30 [ 9693.994652][ T254] kthread+0x28a/0x350 [ 9693.994652][ T254] ret_from_fork+0x31/0x70 [ 9693.994652][ T254] ret_from_fork_asm+0x1a/0x30 [ 9693.994652][ T254] [ 9693.996804][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9693.996804][ T254] netdev_get_by_index+0x5e/0x80 [ 9693.996804][ T254] fib6_nh_init+0x3d8/0x1580 [ 9693.996804][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9693.996804][ T254] ip6_route_add+0x1c/0x140 [ 9693.996804][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9693.996804][ T254] inet6_addr_add+0x4f8/0xa40 [ 9693.996804][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9693.996804][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9693.996804][ T254] netlink_rcv_skb+0x130/0x360 [ 9693.996804][ T254] netlink_unicast+0x449/0x710 [ 9693.996804][ T254] netlink_sendmsg+0x723/0xbe0 [ 9693.996804][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9693.996804][ T254] ___sys_sendmsg+0xee/0x170 [ 9693.996804][ T254] __sys_sendmsg+0xcd/0x170 [ 9693.996804][ T254] do_syscall_64+0xc6/0x1e0 [ 9693.996804][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9693.996804][ T254] [ 9693.999040][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9693.999040][ T254] netdev_get_by_index+0x5e/0x80 [ 9693.999040][ T254] fib6_nh_init+0x3d8/0x1580 [ 9693.999040][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9693.999040][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9693.999040][ T254] ipv6_add_addr+0x411/0x2000 [ 9693.999040][ T254] inet6_addr_add+0x30e/0xa40 [ 9693.999040][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9693.999040][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9693.999040][ T254] netlink_rcv_skb+0x130/0x360 [ 9693.999040][ T254] netlink_unicast+0x449/0x710 [ 9693.999040][ T254] netlink_sendmsg+0x723/0xbe0 [ 9693.999040][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9693.999040][ T254] ___sys_sendmsg+0xee/0x170 [ 9693.999040][ T254] __sys_sendmsg+0xcd/0x170 [ 9693.999040][ T254] do_syscall_64+0xc6/0x1e0 [ 9693.999040][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9693.999040][ T254] [ 9694.001280][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9694.001280][ T254] netdev_get_by_index+0x5e/0x80 [ 9694.001280][ T254] fib6_nh_init+0x3d8/0x1580 [ 9694.001280][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9694.001280][ T254] ip6_route_add+0x1c/0x140 [ 9694.001280][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9694.001280][ T254] addrconf_add_dev+0xe2/0x170 [ 9694.001280][ T254] inet6_addr_add+0x12f/0xa40 [ 9694.001280][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9694.001280][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9694.001280][ T254] netlink_rcv_skb+0x130/0x360 [ 9694.001280][ T254] netlink_unicast+0x449/0x710 [ 9694.001280][ T254] netlink_sendmsg+0x723/0xbe0 [ 9694.001280][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9694.001280][ T254] ___sys_sendmsg+0xee/0x170 [ 9694.001280][ T254] __sys_sendmsg+0xcd/0x170 [ 9694.001280][ T254] do_syscall_64+0xc6/0x1e0 [ 9694.001280][ T254] [ 9694.003486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9694.003486][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9694.003486][ T254] ipv6_find_idev+0x102/0x170 [ 9694.003486][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9694.003486][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9694.003486][ T254] netlink_rcv_skb+0x130/0x360 [ 9694.003486][ T254] netlink_unicast+0x449/0x710 [ 9694.003486][ T254] netlink_sendmsg+0x723/0xbe0 [ 9694.003486][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9694.003486][ T254] ___sys_sendmsg+0xee/0x170 [ 9694.003486][ T254] __sys_sendmsg+0xcd/0x170 [ 9694.003486][ T254] do_syscall_64+0xc6/0x1e0 [ 9694.003486][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9694.003486][ T254] [ 9694.005209][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9694.005209][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9694.005209][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9694.005209][ T254] ipv6_find_idev+0x102/0x170 [ 9694.005209][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9694.005209][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9694.005209][ T254] netlink_rcv_skb+0x130/0x360 [ 9694.005209][ T254] netlink_unicast+0x449/0x710 [ 9694.005209][ T254] netlink_sendmsg+0x723/0xbe0 [ 9694.005209][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9694.005209][ T254] ___sys_sendmsg+0xee/0x170 [ 9694.005209][ T254] __sys_sendmsg+0xcd/0x170 [ 9694.005209][ T254] do_syscall_64+0xc6/0x1e0 [ 9694.005209][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9694.005209][ T254] [ 9704.247855][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9704.248389][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.248389][ T254] dst_init+0x84/0x4a0 [ 9704.248389][ T254] dst_alloc+0x97/0x150 [ 9704.248389][ T254] ip6_dst_alloc+0x23/0x90 [ 9704.248389][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9704.248389][ T254] ip6_pol_route+0x56f/0x840 [ 9704.248389][ T254] fib6_rule_lookup+0x334/0x630 [ 9704.248389][ T254] ip6_route_output_flags+0x259/0x480 [ 9704.248389][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9704.248389][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9704.248389][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.248389][ T254] netlink_unicast+0x449/0x710 [ 9704.248389][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.248389][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.248389][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.248389][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.248389][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.248389][ T254] [ 9704.250626][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.250626][ T254] netdev_get_by_index+0x5e/0x80 [ 9704.250626][ T254] fib6_nh_init+0x3d8/0x1580 [ 9704.250626][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9704.250626][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9704.250626][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9704.250626][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9704.250626][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9704.250626][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9704.250626][ T254] addrconf_dad_begin+0x310/0x670 [ 9704.250626][ T254] addrconf_dad_work+0x10b/0xab0 [ 9704.250626][ T254] process_one_work+0x84d/0x18a0 [ 9704.250626][ T254] worker_thread+0x587/0xd30 [ 9704.250626][ T254] kthread+0x28a/0x350 [ 9704.250626][ T254] ret_from_fork+0x31/0x70 [ 9704.250626][ T254] ret_from_fork_asm+0x1a/0x30 [ 9704.250626][ T254] [ 9704.252783][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.252783][ T254] netdev_get_by_index+0x5e/0x80 [ 9704.252783][ T254] fib6_nh_init+0x3d8/0x1580 [ 9704.252783][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9704.252783][ T254] ip6_route_add+0x1c/0x140 [ 9704.252783][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9704.252783][ T254] inet6_addr_add+0x4f8/0xa40 [ 9704.252783][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9704.252783][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9704.252783][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.252783][ T254] netlink_unicast+0x449/0x710 [ 9704.252783][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.252783][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.252783][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.252783][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.252783][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.252783][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9704.252783][ T254] [ 9704.255030][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.255030][ T254] netdev_get_by_index+0x5e/0x80 [ 9704.255030][ T254] fib6_nh_init+0x3d8/0x1580 [ 9704.255030][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9704.255030][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9704.255030][ T254] ipv6_add_addr+0x411/0x2000 [ 9704.255030][ T254] inet6_addr_add+0x30e/0xa40 [ 9704.255030][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9704.255030][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9704.255030][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.255030][ T254] netlink_unicast+0x449/0x710 [ 9704.255030][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.255030][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.255030][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.255030][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.255030][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.255030][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9704.255030][ T254] [ 9704.257270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.257270][ T254] netdev_get_by_index+0x5e/0x80 [ 9704.257270][ T254] fib6_nh_init+0x3d8/0x1580 [ 9704.257270][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9704.257270][ T254] ip6_route_add+0x1c/0x140 [ 9704.257270][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9704.257270][ T254] addrconf_add_dev+0xe2/0x170 [ 9704.257270][ T254] inet6_addr_add+0x12f/0xa40 [ 9704.257270][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9704.257270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9704.257270][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.257270][ T254] netlink_unicast+0x449/0x710 [ 9704.257270][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.257270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.257270][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.257270][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.257270][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.257270][ T254] [ 9704.259471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.259471][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9704.259471][ T254] ipv6_find_idev+0x102/0x170 [ 9704.259471][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9704.259471][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9704.259471][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.259471][ T254] netlink_unicast+0x449/0x710 [ 9704.259471][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.259471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.259471][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.259471][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.259471][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.259471][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9704.259471][ T254] [ 9704.261194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9704.261194][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9704.261194][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9704.261194][ T254] ipv6_find_idev+0x102/0x170 [ 9704.261194][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9704.261194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9704.261194][ T254] netlink_rcv_skb+0x130/0x360 [ 9704.261194][ T254] netlink_unicast+0x449/0x710 [ 9704.261194][ T254] netlink_sendmsg+0x723/0xbe0 [ 9704.261194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9704.261194][ T254] ___sys_sendmsg+0xee/0x170 [ 9704.261194][ T254] __sys_sendmsg+0xcd/0x170 [ 9704.261194][ T254] do_syscall_64+0xc6/0x1e0 [ 9704.261194][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9704.261194][ T254] [ 9714.335961][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9714.336588][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.336588][ T254] dst_init+0x84/0x4a0 [ 9714.336588][ T254] dst_alloc+0x97/0x150 [ 9714.336588][ T254] ip6_dst_alloc+0x23/0x90 [ 9714.336588][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9714.336588][ T254] ip6_pol_route+0x56f/0x840 [ 9714.336588][ T254] fib6_rule_lookup+0x334/0x630 [ 9714.336588][ T254] ip6_route_output_flags+0x259/0x480 [ 9714.336588][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9714.336588][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9714.336588][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.336588][ T254] netlink_unicast+0x449/0x710 [ 9714.336588][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.336588][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.336588][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.336588][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.336588][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.336588][ T254] [ 9714.338792][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.338792][ T254] netdev_get_by_index+0x5e/0x80 [ 9714.338792][ T254] fib6_nh_init+0x3d8/0x1580 [ 9714.338792][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9714.338792][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9714.338792][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9714.338792][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9714.338792][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9714.338792][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9714.338792][ T254] addrconf_dad_begin+0x310/0x670 [ 9714.338792][ T254] addrconf_dad_work+0x10b/0xab0 [ 9714.338792][ T254] process_one_work+0x84d/0x18a0 [ 9714.338792][ T254] worker_thread+0x587/0xd30 [ 9714.338792][ T254] kthread+0x28a/0x350 [ 9714.338792][ T254] ret_from_fork+0x31/0x70 [ 9714.338792][ T254] ret_from_fork_asm+0x1a/0x30 [ 9714.338792][ T254] [ 9714.340938][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.340938][ T254] netdev_get_by_index+0x5e/0x80 [ 9714.340938][ T254] fib6_nh_init+0x3d8/0x1580 [ 9714.340938][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9714.340938][ T254] ip6_route_add+0x1c/0x140 [ 9714.340938][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9714.340938][ T254] inet6_addr_add+0x4f8/0xa40 [ 9714.340938][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9714.340938][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9714.340938][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.340938][ T254] netlink_unicast+0x449/0x710 [ 9714.340938][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.340938][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.340938][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.340938][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.340938][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.340938][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9714.340938][ T254] [ 9714.343201][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.343201][ T254] netdev_get_by_index+0x5e/0x80 [ 9714.343201][ T254] fib6_nh_init+0x3d8/0x1580 [ 9714.343201][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9714.343201][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9714.343201][ T254] ipv6_add_addr+0x411/0x2000 [ 9714.343201][ T254] inet6_addr_add+0x30e/0xa40 [ 9714.343201][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9714.343201][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9714.343201][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.343201][ T254] netlink_unicast+0x449/0x710 [ 9714.343201][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.343201][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.343201][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.343201][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.343201][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.343201][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9714.343201][ T254] [ 9714.345445][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.345445][ T254] netdev_get_by_index+0x5e/0x80 [ 9714.345445][ T254] fib6_nh_init+0x3d8/0x1580 [ 9714.345445][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9714.345445][ T254] ip6_route_add+0x1c/0x140 [ 9714.345445][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9714.345445][ T254] addrconf_add_dev+0xe2/0x170 [ 9714.345445][ T254] inet6_addr_add+0x12f/0xa40 [ 9714.345445][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9714.345445][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9714.345445][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.345445][ T254] netlink_unicast+0x449/0x710 [ 9714.345445][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.345445][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.345445][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.345445][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.345445][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.345445][ T254] [ 9714.347644][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.347644][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9714.347644][ T254] ipv6_find_idev+0x102/0x170 [ 9714.347644][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9714.347644][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9714.347644][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.347644][ T254] netlink_unicast+0x449/0x710 [ 9714.347644][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.347644][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.347644][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.347644][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.347644][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.347644][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9714.347644][ T254] [ 9714.349363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9714.349363][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9714.349363][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9714.349363][ T254] ipv6_find_idev+0x102/0x170 [ 9714.349363][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9714.349363][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9714.349363][ T254] netlink_rcv_skb+0x130/0x360 [ 9714.349363][ T254] netlink_unicast+0x449/0x710 [ 9714.349363][ T254] netlink_sendmsg+0x723/0xbe0 [ 9714.349363][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9714.349363][ T254] ___sys_sendmsg+0xee/0x170 [ 9714.349363][ T254] __sys_sendmsg+0xcd/0x170 [ 9714.349363][ T254] do_syscall_64+0xc6/0x1e0 [ 9714.349363][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9714.349363][ T254] [ 9724.375863][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9724.376412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.376412][ T254] dst_init+0x84/0x4a0 [ 9724.376412][ T254] dst_alloc+0x97/0x150 [ 9724.376412][ T254] ip6_dst_alloc+0x23/0x90 [ 9724.376412][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9724.376412][ T254] ip6_pol_route+0x56f/0x840 [ 9724.376412][ T254] fib6_rule_lookup+0x334/0x630 [ 9724.376412][ T254] ip6_route_output_flags+0x259/0x480 [ 9724.376412][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9724.376412][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9724.376412][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.376412][ T254] netlink_unicast+0x449/0x710 [ 9724.376412][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.376412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.376412][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.376412][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.376412][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.376412][ T254] [ 9724.378663][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.378663][ T254] netdev_get_by_index+0x5e/0x80 [ 9724.378663][ T254] fib6_nh_init+0x3d8/0x1580 [ 9724.378663][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9724.378663][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9724.378663][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9724.378663][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9724.378663][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9724.378663][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9724.378663][ T254] addrconf_dad_begin+0x310/0x670 [ 9724.378663][ T254] addrconf_dad_work+0x10b/0xab0 [ 9724.378663][ T254] process_one_work+0x84d/0x18a0 [ 9724.378663][ T254] worker_thread+0x587/0xd30 [ 9724.378663][ T254] kthread+0x28a/0x350 [ 9724.378663][ T254] ret_from_fork+0x31/0x70 [ 9724.378663][ T254] ret_from_fork_asm+0x1a/0x30 [ 9724.378663][ T254] [ 9724.380819][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.380819][ T254] netdev_get_by_index+0x5e/0x80 [ 9724.380819][ T254] fib6_nh_init+0x3d8/0x1580 [ 9724.380819][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9724.380819][ T254] ip6_route_add+0x1c/0x140 [ 9724.380819][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9724.380819][ T254] inet6_addr_add+0x4f8/0xa40 [ 9724.380819][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9724.380819][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9724.380819][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.380819][ T254] netlink_unicast+0x449/0x710 [ 9724.380819][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.380819][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.380819][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.380819][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.380819][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.380819][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9724.380819][ T254] [ 9724.383070][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.383070][ T254] netdev_get_by_index+0x5e/0x80 [ 9724.383070][ T254] fib6_nh_init+0x3d8/0x1580 [ 9724.383070][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9724.383070][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9724.383070][ T254] ipv6_add_addr+0x411/0x2000 [ 9724.383070][ T254] inet6_addr_add+0x30e/0xa40 [ 9724.383070][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9724.383070][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9724.383070][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.383070][ T254] netlink_unicast+0x449/0x710 [ 9724.383070][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.383070][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.383070][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.383070][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.383070][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.383070][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9724.383070][ T254] [ 9724.385306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.385306][ T254] netdev_get_by_index+0x5e/0x80 [ 9724.385306][ T254] fib6_nh_init+0x3d8/0x1580 [ 9724.385306][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9724.385306][ T254] ip6_route_add+0x1c/0x140 [ 9724.385306][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9724.385306][ T254] addrconf_add_dev+0xe2/0x170 [ 9724.385306][ T254] inet6_addr_add+0x12f/0xa40 [ 9724.385306][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9724.385306][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9724.385306][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.385306][ T254] netlink_unicast+0x449/0x710 [ 9724.385306][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.385306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.385306][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.385306][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.385306][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.385306][ T254] [ 9724.387530][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.387530][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9724.387530][ T254] ipv6_find_idev+0x102/0x170 [ 9724.387530][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9724.387530][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9724.387530][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.387530][ T254] netlink_unicast+0x449/0x710 [ 9724.387530][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.387530][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.387530][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.387530][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.387530][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.387530][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9724.387530][ T254] [ 9724.389255][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9724.389255][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9724.389255][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9724.389255][ T254] ipv6_find_idev+0x102/0x170 [ 9724.389255][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9724.389255][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9724.389255][ T254] netlink_rcv_skb+0x130/0x360 [ 9724.389255][ T254] netlink_unicast+0x449/0x710 [ 9724.389255][ T254] netlink_sendmsg+0x723/0xbe0 [ 9724.389255][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9724.389255][ T254] ___sys_sendmsg+0xee/0x170 [ 9724.389255][ T254] __sys_sendmsg+0xcd/0x170 [ 9724.389255][ T254] do_syscall_64+0xc6/0x1e0 [ 9724.389255][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9724.389255][ T254] [ 9734.607916][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9734.608448][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.608448][ T254] dst_init+0x84/0x4a0 [ 9734.608448][ T254] dst_alloc+0x97/0x150 [ 9734.608448][ T254] ip6_dst_alloc+0x23/0x90 [ 9734.608448][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9734.608448][ T254] ip6_pol_route+0x56f/0x840 [ 9734.608448][ T254] fib6_rule_lookup+0x334/0x630 [ 9734.608448][ T254] ip6_route_output_flags+0x259/0x480 [ 9734.608448][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9734.608448][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9734.608448][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.608448][ T254] netlink_unicast+0x449/0x710 [ 9734.608448][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.608448][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.608448][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.608448][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.608448][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.608448][ T254] [ 9734.610671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.610671][ T254] netdev_get_by_index+0x5e/0x80 [ 9734.610671][ T254] fib6_nh_init+0x3d8/0x1580 [ 9734.610671][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9734.610671][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9734.610671][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9734.610671][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9734.610671][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9734.610671][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9734.610671][ T254] addrconf_dad_begin+0x310/0x670 [ 9734.610671][ T254] addrconf_dad_work+0x10b/0xab0 [ 9734.610671][ T254] process_one_work+0x84d/0x18a0 [ 9734.610671][ T254] worker_thread+0x587/0xd30 [ 9734.610671][ T254] kthread+0x28a/0x350 [ 9734.610671][ T254] ret_from_fork+0x31/0x70 [ 9734.610671][ T254] ret_from_fork_asm+0x1a/0x30 [ 9734.610671][ T254] [ 9734.612836][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.612836][ T254] netdev_get_by_index+0x5e/0x80 [ 9734.612836][ T254] fib6_nh_init+0x3d8/0x1580 [ 9734.612836][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9734.612836][ T254] ip6_route_add+0x1c/0x140 [ 9734.612836][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9734.612836][ T254] inet6_addr_add+0x4f8/0xa40 [ 9734.612836][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9734.612836][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9734.612836][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.612836][ T254] netlink_unicast+0x449/0x710 [ 9734.612836][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.612836][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.612836][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.612836][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.612836][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.612836][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9734.612836][ T254] [ 9734.615088][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.615088][ T254] netdev_get_by_index+0x5e/0x80 [ 9734.615088][ T254] fib6_nh_init+0x3d8/0x1580 [ 9734.615088][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9734.615088][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9734.615088][ T254] ipv6_add_addr+0x411/0x2000 [ 9734.615088][ T254] inet6_addr_add+0x30e/0xa40 [ 9734.615088][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9734.615088][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9734.615088][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.615088][ T254] netlink_unicast+0x449/0x710 [ 9734.615088][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.615088][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.615088][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.615088][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.615088][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.615088][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9734.615088][ T254] [ 9734.617329][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.617329][ T254] netdev_get_by_index+0x5e/0x80 [ 9734.617329][ T254] fib6_nh_init+0x3d8/0x1580 [ 9734.617329][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9734.617329][ T254] ip6_route_add+0x1c/0x140 [ 9734.617329][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9734.617329][ T254] addrconf_add_dev+0xe2/0x170 [ 9734.617329][ T254] inet6_addr_add+0x12f/0xa40 [ 9734.617329][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9734.617329][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9734.617329][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.617329][ T254] netlink_unicast+0x449/0x710 [ 9734.617329][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.617329][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.617329][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.617329][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.617329][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.617329][ T254] [ 9734.619539][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.619539][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9734.619539][ T254] ipv6_find_idev+0x102/0x170 [ 9734.619539][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9734.619539][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9734.619539][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.619539][ T254] netlink_unicast+0x449/0x710 [ 9734.619539][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.619539][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.619539][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.619539][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.619539][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.619539][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9734.619539][ T254] [ 9734.621268][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9734.621268][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9734.621268][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9734.621268][ T254] ipv6_find_idev+0x102/0x170 [ 9734.621268][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9734.621268][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9734.621268][ T254] netlink_rcv_skb+0x130/0x360 [ 9734.621268][ T254] netlink_unicast+0x449/0x710 [ 9734.621268][ T254] netlink_sendmsg+0x723/0xbe0 [ 9734.621268][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9734.621268][ T254] ___sys_sendmsg+0xee/0x170 [ 9734.621268][ T254] __sys_sendmsg+0xcd/0x170 [ 9734.621268][ T254] do_syscall_64+0xc6/0x1e0 [ 9734.621268][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9734.621268][ T254] [ 9744.671853][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9744.672408][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.672408][ T254] dst_init+0x84/0x4a0 [ 9744.672408][ T254] dst_alloc+0x97/0x150 [ 9744.672408][ T254] ip6_dst_alloc+0x23/0x90 [ 9744.672408][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9744.672408][ T254] ip6_pol_route+0x56f/0x840 [ 9744.672408][ T254] fib6_rule_lookup+0x334/0x630 [ 9744.672408][ T254] ip6_route_output_flags+0x259/0x480 [ 9744.672408][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9744.672408][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9744.672408][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.672408][ T254] netlink_unicast+0x449/0x710 [ 9744.672408][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.672408][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.672408][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.672408][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.672408][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.672408][ T254] [ 9744.674651][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.674651][ T254] netdev_get_by_index+0x5e/0x80 [ 9744.674651][ T254] fib6_nh_init+0x3d8/0x1580 [ 9744.674651][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9744.674651][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9744.674651][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9744.674651][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9744.674651][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9744.674651][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9744.674651][ T254] addrconf_dad_begin+0x310/0x670 [ 9744.674651][ T254] addrconf_dad_work+0x10b/0xab0 [ 9744.674651][ T254] process_one_work+0x84d/0x18a0 [ 9744.674651][ T254] worker_thread+0x587/0xd30 [ 9744.674651][ T254] kthread+0x28a/0x350 [ 9744.674651][ T254] ret_from_fork+0x31/0x70 [ 9744.674651][ T254] ret_from_fork_asm+0x1a/0x30 [ 9744.674651][ T254] [ 9744.676803][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.676803][ T254] netdev_get_by_index+0x5e/0x80 [ 9744.676803][ T254] fib6_nh_init+0x3d8/0x1580 [ 9744.676803][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9744.676803][ T254] ip6_route_add+0x1c/0x140 [ 9744.676803][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9744.676803][ T254] inet6_addr_add+0x4f8/0xa40 [ 9744.676803][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9744.676803][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9744.676803][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.676803][ T254] netlink_unicast+0x449/0x710 [ 9744.676803][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.676803][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.676803][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.676803][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.676803][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.676803][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9744.676803][ T254] [ 9744.679046][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.679046][ T254] netdev_get_by_index+0x5e/0x80 [ 9744.679046][ T254] fib6_nh_init+0x3d8/0x1580 [ 9744.679046][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9744.679046][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9744.679046][ T254] ipv6_add_addr+0x411/0x2000 [ 9744.679046][ T254] inet6_addr_add+0x30e/0xa40 [ 9744.679046][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9744.679046][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9744.679046][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.679046][ T254] netlink_unicast+0x449/0x710 [ 9744.679046][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.679046][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.679046][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.679046][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.679046][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.679046][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9744.679046][ T254] [ 9744.681290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.681290][ T254] netdev_get_by_index+0x5e/0x80 [ 9744.681290][ T254] fib6_nh_init+0x3d8/0x1580 [ 9744.681290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9744.681290][ T254] ip6_route_add+0x1c/0x140 [ 9744.681290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9744.681290][ T254] addrconf_add_dev+0xe2/0x170 [ 9744.681290][ T254] inet6_addr_add+0x12f/0xa40 [ 9744.681290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9744.681290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9744.681290][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.681290][ T254] netlink_unicast+0x449/0x710 [ 9744.681290][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.681290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.681290][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.681290][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.681290][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.681290][ T254] [ 9744.683519][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.683519][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9744.683519][ T254] ipv6_find_idev+0x102/0x170 [ 9744.683519][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9744.683519][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9744.683519][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.683519][ T254] netlink_unicast+0x449/0x710 [ 9744.683519][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.683519][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.683519][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.683519][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.683519][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.683519][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9744.683519][ T254] [ 9744.685272][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9744.685272][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9744.685272][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9744.685272][ T254] ipv6_find_idev+0x102/0x170 [ 9744.685272][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9744.685272][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9744.685272][ T254] netlink_rcv_skb+0x130/0x360 [ 9744.685272][ T254] netlink_unicast+0x449/0x710 [ 9744.685272][ T254] netlink_sendmsg+0x723/0xbe0 [ 9744.685272][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9744.685272][ T254] ___sys_sendmsg+0xee/0x170 [ 9744.685272][ T254] __sys_sendmsg+0xcd/0x170 [ 9744.685272][ T254] do_syscall_64+0xc6/0x1e0 [ 9744.685272][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9744.685272][ T254] [ 9754.935920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9754.936471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.936471][ T254] dst_init+0x84/0x4a0 [ 9754.936471][ T254] dst_alloc+0x97/0x150 [ 9754.936471][ T254] ip6_dst_alloc+0x23/0x90 [ 9754.936471][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9754.936471][ T254] ip6_pol_route+0x56f/0x840 [ 9754.936471][ T254] fib6_rule_lookup+0x334/0x630 [ 9754.936471][ T254] ip6_route_output_flags+0x259/0x480 [ 9754.936471][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9754.936471][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9754.936471][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.936471][ T254] netlink_unicast+0x449/0x710 [ 9754.936471][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.936471][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.936471][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.936471][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.936471][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.936471][ T254] [ 9754.938684][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.938684][ T254] netdev_get_by_index+0x5e/0x80 [ 9754.938684][ T254] fib6_nh_init+0x3d8/0x1580 [ 9754.938684][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9754.938684][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9754.938684][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9754.938684][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9754.938684][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9754.938684][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9754.938684][ T254] addrconf_dad_begin+0x310/0x670 [ 9754.938684][ T254] addrconf_dad_work+0x10b/0xab0 [ 9754.938684][ T254] process_one_work+0x84d/0x18a0 [ 9754.938684][ T254] worker_thread+0x587/0xd30 [ 9754.938684][ T254] kthread+0x28a/0x350 [ 9754.938684][ T254] ret_from_fork+0x31/0x70 [ 9754.938684][ T254] ret_from_fork_asm+0x1a/0x30 [ 9754.938684][ T254] [ 9754.940844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.940844][ T254] netdev_get_by_index+0x5e/0x80 [ 9754.940844][ T254] fib6_nh_init+0x3d8/0x1580 [ 9754.940844][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9754.940844][ T254] ip6_route_add+0x1c/0x140 [ 9754.940844][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9754.940844][ T254] inet6_addr_add+0x4f8/0xa40 [ 9754.940844][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9754.940844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9754.940844][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.940844][ T254] netlink_unicast+0x449/0x710 [ 9754.940844][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.940844][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.940844][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.940844][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.940844][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.940844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9754.940844][ T254] [ 9754.943094][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.943094][ T254] netdev_get_by_index+0x5e/0x80 [ 9754.943094][ T254] fib6_nh_init+0x3d8/0x1580 [ 9754.943094][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9754.943094][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9754.943094][ T254] ipv6_add_addr+0x411/0x2000 [ 9754.943094][ T254] inet6_addr_add+0x30e/0xa40 [ 9754.943094][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9754.943094][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9754.943094][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.943094][ T254] netlink_unicast+0x449/0x710 [ 9754.943094][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.943094][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.943094][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.943094][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.943094][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.943094][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9754.943094][ T254] [ 9754.945336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.945336][ T254] netdev_get_by_index+0x5e/0x80 [ 9754.945336][ T254] fib6_nh_init+0x3d8/0x1580 [ 9754.945336][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9754.945336][ T254] ip6_route_add+0x1c/0x140 [ 9754.945336][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9754.945336][ T254] addrconf_add_dev+0xe2/0x170 [ 9754.945336][ T254] inet6_addr_add+0x12f/0xa40 [ 9754.945336][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9754.945336][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9754.945336][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.945336][ T254] netlink_unicast+0x449/0x710 [ 9754.945336][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.945336][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.945336][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.945336][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.945336][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.945336][ T254] [ 9754.947560][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.947560][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9754.947560][ T254] ipv6_find_idev+0x102/0x170 [ 9754.947560][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9754.947560][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9754.947560][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.947560][ T254] netlink_unicast+0x449/0x710 [ 9754.947560][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.947560][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.947560][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.947560][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.947560][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.947560][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9754.947560][ T254] [ 9754.949289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9754.949289][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9754.949289][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9754.949289][ T254] ipv6_find_idev+0x102/0x170 [ 9754.949289][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9754.949289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9754.949289][ T254] netlink_rcv_skb+0x130/0x360 [ 9754.949289][ T254] netlink_unicast+0x449/0x710 [ 9754.949289][ T254] netlink_sendmsg+0x723/0xbe0 [ 9754.949289][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9754.949289][ T254] ___sys_sendmsg+0xee/0x170 [ 9754.949289][ T254] __sys_sendmsg+0xcd/0x170 [ 9754.949289][ T254] do_syscall_64+0xc6/0x1e0 [ 9754.949289][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9754.949289][ T254] [ 9765.199792][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9765.200338][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.200338][ T254] dst_init+0x84/0x4a0 [ 9765.200338][ T254] dst_alloc+0x97/0x150 [ 9765.200338][ T254] ip6_dst_alloc+0x23/0x90 [ 9765.200338][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9765.200338][ T254] ip6_pol_route+0x56f/0x840 [ 9765.200338][ T254] fib6_rule_lookup+0x334/0x630 [ 9765.200338][ T254] ip6_route_output_flags+0x259/0x480 [ 9765.200338][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9765.200338][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9765.200338][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.200338][ T254] netlink_unicast+0x449/0x710 [ 9765.200338][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.200338][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.200338][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.200338][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.200338][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.200338][ T254] [ 9765.202581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.202581][ T254] netdev_get_by_index+0x5e/0x80 [ 9765.202581][ T254] fib6_nh_init+0x3d8/0x1580 [ 9765.202581][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9765.202581][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9765.202581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9765.202581][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9765.202581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9765.202581][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9765.202581][ T254] addrconf_dad_begin+0x310/0x670 [ 9765.202581][ T254] addrconf_dad_work+0x10b/0xab0 [ 9765.202581][ T254] process_one_work+0x84d/0x18a0 [ 9765.202581][ T254] worker_thread+0x587/0xd30 [ 9765.202581][ T254] kthread+0x28a/0x350 [ 9765.202581][ T254] ret_from_fork+0x31/0x70 [ 9765.202581][ T254] ret_from_fork_asm+0x1a/0x30 [ 9765.202581][ T254] [ 9765.204731][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.204731][ T254] netdev_get_by_index+0x5e/0x80 [ 9765.204731][ T254] fib6_nh_init+0x3d8/0x1580 [ 9765.204731][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9765.204731][ T254] ip6_route_add+0x1c/0x140 [ 9765.204731][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9765.204731][ T254] inet6_addr_add+0x4f8/0xa40 [ 9765.204731][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9765.204731][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9765.204731][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.204731][ T254] netlink_unicast+0x449/0x710 [ 9765.204731][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.204731][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.204731][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.204731][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.204731][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.204731][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9765.204731][ T254] [ 9765.206983][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.206983][ T254] netdev_get_by_index+0x5e/0x80 [ 9765.206983][ T254] fib6_nh_init+0x3d8/0x1580 [ 9765.206983][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9765.206983][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9765.206983][ T254] ipv6_add_addr+0x411/0x2000 [ 9765.206983][ T254] inet6_addr_add+0x30e/0xa40 [ 9765.206983][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9765.206983][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9765.206983][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.206983][ T254] netlink_unicast+0x449/0x710 [ 9765.206983][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.206983][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.206983][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.206983][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.206983][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.206983][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9765.206983][ T254] [ 9765.209242][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.209242][ T254] netdev_get_by_index+0x5e/0x80 [ 9765.209242][ T254] fib6_nh_init+0x3d8/0x1580 [ 9765.209242][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9765.209242][ T254] ip6_route_add+0x1c/0x140 [ 9765.209242][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9765.209242][ T254] addrconf_add_dev+0xe2/0x170 [ 9765.209242][ T254] inet6_addr_add+0x12f/0xa40 [ 9765.209242][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9765.209242][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9765.209242][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.209242][ T254] netlink_unicast+0x449/0x710 [ 9765.209242][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.209242][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.209242][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.209242][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.209242][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.209242][ T254] [ 9765.211450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.211450][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9765.211450][ T254] ipv6_find_idev+0x102/0x170 [ 9765.211450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9765.211450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9765.211450][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.211450][ T254] netlink_unicast+0x449/0x710 [ 9765.211450][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.211450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.211450][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.211450][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.211450][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.211450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9765.211450][ T254] [ 9765.213199][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9765.213199][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9765.213199][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9765.213199][ T254] ipv6_find_idev+0x102/0x170 [ 9765.213199][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9765.213199][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9765.213199][ T254] netlink_rcv_skb+0x130/0x360 [ 9765.213199][ T254] netlink_unicast+0x449/0x710 [ 9765.213199][ T254] netlink_sendmsg+0x723/0xbe0 [ 9765.213199][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9765.213199][ T254] ___sys_sendmsg+0xee/0x170 [ 9765.213199][ T254] __sys_sendmsg+0xcd/0x170 [ 9765.213199][ T254] do_syscall_64+0xc6/0x1e0 [ 9765.213199][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9765.213199][ T254] [ 9775.255766][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9775.256306][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.256306][ T254] dst_init+0x84/0x4a0 [ 9775.256306][ T254] dst_alloc+0x97/0x150 [ 9775.256306][ T254] ip6_dst_alloc+0x23/0x90 [ 9775.256306][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9775.256306][ T254] ip6_pol_route+0x56f/0x840 [ 9775.256306][ T254] fib6_rule_lookup+0x334/0x630 [ 9775.256306][ T254] ip6_route_output_flags+0x259/0x480 [ 9775.256306][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9775.256306][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9775.256306][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.256306][ T254] netlink_unicast+0x449/0x710 [ 9775.256306][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.256306][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.256306][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.256306][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.256306][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.256306][ T254] [ 9775.258522][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.258522][ T254] netdev_get_by_index+0x5e/0x80 [ 9775.258522][ T254] fib6_nh_init+0x3d8/0x1580 [ 9775.258522][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9775.258522][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9775.258522][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9775.258522][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9775.258522][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9775.258522][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9775.258522][ T254] addrconf_dad_begin+0x310/0x670 [ 9775.258522][ T254] addrconf_dad_work+0x10b/0xab0 [ 9775.258522][ T254] process_one_work+0x84d/0x18a0 [ 9775.258522][ T254] worker_thread+0x587/0xd30 [ 9775.258522][ T254] kthread+0x28a/0x350 [ 9775.258522][ T254] ret_from_fork+0x31/0x70 [ 9775.258522][ T254] ret_from_fork_asm+0x1a/0x30 [ 9775.258522][ T254] [ 9775.260674][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.260674][ T254] netdev_get_by_index+0x5e/0x80 [ 9775.260674][ T254] fib6_nh_init+0x3d8/0x1580 [ 9775.260674][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9775.260674][ T254] ip6_route_add+0x1c/0x140 [ 9775.260674][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9775.260674][ T254] inet6_addr_add+0x4f8/0xa40 [ 9775.260674][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9775.260674][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9775.260674][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.260674][ T254] netlink_unicast+0x449/0x710 [ 9775.260674][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.260674][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.260674][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.260674][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.260674][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.260674][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9775.260674][ T254] [ 9775.262945][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.262945][ T254] netdev_get_by_index+0x5e/0x80 [ 9775.262945][ T254] fib6_nh_init+0x3d8/0x1580 [ 9775.262945][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9775.262945][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9775.262945][ T254] ipv6_add_addr+0x411/0x2000 [ 9775.262945][ T254] inet6_addr_add+0x30e/0xa40 [ 9775.262945][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9775.262945][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9775.262945][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.262945][ T254] netlink_unicast+0x449/0x710 [ 9775.262945][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.262945][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.262945][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.262945][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.262945][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.262945][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9775.262945][ T254] [ 9775.265194][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.265194][ T254] netdev_get_by_index+0x5e/0x80 [ 9775.265194][ T254] fib6_nh_init+0x3d8/0x1580 [ 9775.265194][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9775.265194][ T254] ip6_route_add+0x1c/0x140 [ 9775.265194][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9775.265194][ T254] addrconf_add_dev+0xe2/0x170 [ 9775.265194][ T254] inet6_addr_add+0x12f/0xa40 [ 9775.265194][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9775.265194][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9775.265194][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.265194][ T254] netlink_unicast+0x449/0x710 [ 9775.265194][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.265194][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.265194][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.265194][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.265194][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.265194][ T254] [ 9775.267406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.267406][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9775.267406][ T254] ipv6_find_idev+0x102/0x170 [ 9775.267406][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9775.267406][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9775.267406][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.267406][ T254] netlink_unicast+0x449/0x710 [ 9775.267406][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.267406][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.267406][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.267406][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.267406][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.267406][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9775.267406][ T254] [ 9775.269450][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9775.269450][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9775.269450][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9775.269450][ T254] ipv6_find_idev+0x102/0x170 [ 9775.269450][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9775.269450][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9775.269450][ T254] netlink_rcv_skb+0x130/0x360 [ 9775.269450][ T254] netlink_unicast+0x449/0x710 [ 9775.269450][ T254] netlink_sendmsg+0x723/0xbe0 [ 9775.269450][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9775.269450][ T254] ___sys_sendmsg+0xee/0x170 [ 9775.269450][ T254] __sys_sendmsg+0xcd/0x170 [ 9775.269450][ T254] do_syscall_64+0xc6/0x1e0 [ 9775.269450][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9775.269450][ T254] [ 9785.359854][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9785.360391][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.360391][ T254] dst_init+0x84/0x4a0 [ 9785.360391][ T254] dst_alloc+0x97/0x150 [ 9785.360391][ T254] ip6_dst_alloc+0x23/0x90 [ 9785.360391][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9785.360391][ T254] ip6_pol_route+0x56f/0x840 [ 9785.360391][ T254] fib6_rule_lookup+0x334/0x630 [ 9785.360391][ T254] ip6_route_output_flags+0x259/0x480 [ 9785.360391][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9785.360391][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9785.360391][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.360391][ T254] netlink_unicast+0x449/0x710 [ 9785.360391][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.360391][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.360391][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.360391][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.360391][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.360391][ T254] [ 9785.362606][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.362606][ T254] netdev_get_by_index+0x5e/0x80 [ 9785.362606][ T254] fib6_nh_init+0x3d8/0x1580 [ 9785.362606][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9785.362606][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9785.362606][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9785.362606][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9785.362606][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9785.362606][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9785.362606][ T254] addrconf_dad_begin+0x310/0x670 [ 9785.362606][ T254] addrconf_dad_work+0x10b/0xab0 [ 9785.362606][ T254] process_one_work+0x84d/0x18a0 [ 9785.362606][ T254] worker_thread+0x587/0xd30 [ 9785.362606][ T254] kthread+0x28a/0x350 [ 9785.362606][ T254] ret_from_fork+0x31/0x70 [ 9785.362606][ T254] ret_from_fork_asm+0x1a/0x30 [ 9785.362606][ T254] [ 9785.364760][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.364760][ T254] netdev_get_by_index+0x5e/0x80 [ 9785.364760][ T254] fib6_nh_init+0x3d8/0x1580 [ 9785.364760][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9785.364760][ T254] ip6_route_add+0x1c/0x140 [ 9785.364760][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9785.364760][ T254] inet6_addr_add+0x4f8/0xa40 [ 9785.364760][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9785.364760][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9785.364760][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.364760][ T254] netlink_unicast+0x449/0x710 [ 9785.364760][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.364760][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.364760][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.364760][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.364760][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.364760][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9785.364760][ T254] [ 9785.366994][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.366994][ T254] netdev_get_by_index+0x5e/0x80 [ 9785.366994][ T254] fib6_nh_init+0x3d8/0x1580 [ 9785.366994][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9785.366994][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9785.366994][ T254] ipv6_add_addr+0x411/0x2000 [ 9785.366994][ T254] inet6_addr_add+0x30e/0xa40 [ 9785.366994][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9785.366994][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9785.366994][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.366994][ T254] netlink_unicast+0x449/0x710 [ 9785.366994][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.366994][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.366994][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.366994][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.366994][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.366994][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9785.366994][ T254] [ 9785.369231][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.369231][ T254] netdev_get_by_index+0x5e/0x80 [ 9785.369231][ T254] fib6_nh_init+0x3d8/0x1580 [ 9785.369231][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9785.369231][ T254] ip6_route_add+0x1c/0x140 [ 9785.369231][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9785.369231][ T254] addrconf_add_dev+0xe2/0x170 [ 9785.369231][ T254] inet6_addr_add+0x12f/0xa40 [ 9785.369231][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9785.369231][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9785.369231][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.369231][ T254] netlink_unicast+0x449/0x710 [ 9785.369231][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.369231][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.369231][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.369231][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.369231][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.369231][ T254] [ 9785.371430][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.371430][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9785.371430][ T254] ipv6_find_idev+0x102/0x170 [ 9785.371430][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9785.371430][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9785.371430][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.371430][ T254] netlink_unicast+0x449/0x710 [ 9785.371430][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.371430][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.371430][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.371430][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.371430][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.371430][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9785.371430][ T254] [ 9785.373180][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9785.373180][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9785.373180][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9785.373180][ T254] ipv6_find_idev+0x102/0x170 [ 9785.373180][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9785.373180][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9785.373180][ T254] netlink_rcv_skb+0x130/0x360 [ 9785.373180][ T254] netlink_unicast+0x449/0x710 [ 9785.373180][ T254] netlink_sendmsg+0x723/0xbe0 [ 9785.373180][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9785.373180][ T254] ___sys_sendmsg+0xee/0x170 [ 9785.373180][ T254] __sys_sendmsg+0xcd/0x170 [ 9785.373180][ T254] do_syscall_64+0xc6/0x1e0 [ 9785.373180][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9785.373180][ T254] [ 9795.407903][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9795.408440][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.408440][ T254] dst_init+0x84/0x4a0 [ 9795.408440][ T254] dst_alloc+0x97/0x150 [ 9795.408440][ T254] ip6_dst_alloc+0x23/0x90 [ 9795.408440][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9795.408440][ T254] ip6_pol_route+0x56f/0x840 [ 9795.408440][ T254] fib6_rule_lookup+0x334/0x630 [ 9795.408440][ T254] ip6_route_output_flags+0x259/0x480 [ 9795.408440][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9795.408440][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9795.408440][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.408440][ T254] netlink_unicast+0x449/0x710 [ 9795.408440][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.408440][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.408440][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.408440][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.408440][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.408440][ T254] [ 9795.410662][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.410662][ T254] netdev_get_by_index+0x5e/0x80 [ 9795.410662][ T254] fib6_nh_init+0x3d8/0x1580 [ 9795.410662][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9795.410662][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9795.410662][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9795.410662][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9795.410662][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9795.410662][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9795.410662][ T254] addrconf_dad_begin+0x310/0x670 [ 9795.410662][ T254] addrconf_dad_work+0x10b/0xab0 [ 9795.410662][ T254] process_one_work+0x84d/0x18a0 [ 9795.410662][ T254] worker_thread+0x587/0xd30 [ 9795.410662][ T254] kthread+0x28a/0x350 [ 9795.410662][ T254] ret_from_fork+0x31/0x70 [ 9795.410662][ T254] ret_from_fork_asm+0x1a/0x30 [ 9795.410662][ T254] [ 9795.412838][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.412838][ T254] netdev_get_by_index+0x5e/0x80 [ 9795.412838][ T254] fib6_nh_init+0x3d8/0x1580 [ 9795.412838][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9795.412838][ T254] ip6_route_add+0x1c/0x140 [ 9795.412838][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9795.412838][ T254] inet6_addr_add+0x4f8/0xa40 [ 9795.412838][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9795.412838][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9795.412838][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.412838][ T254] netlink_unicast+0x449/0x710 [ 9795.412838][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.412838][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.412838][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.412838][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.412838][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.412838][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9795.412838][ T254] [ 9795.415073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.415073][ T254] netdev_get_by_index+0x5e/0x80 [ 9795.415073][ T254] fib6_nh_init+0x3d8/0x1580 [ 9795.415073][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9795.415073][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9795.415073][ T254] ipv6_add_addr+0x411/0x2000 [ 9795.415073][ T254] inet6_addr_add+0x30e/0xa40 [ 9795.415073][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9795.415073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9795.415073][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.415073][ T254] netlink_unicast+0x449/0x710 [ 9795.415073][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.415073][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.415073][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.415073][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.415073][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.415073][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9795.415073][ T254] [ 9795.417309][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.417309][ T254] netdev_get_by_index+0x5e/0x80 [ 9795.417309][ T254] fib6_nh_init+0x3d8/0x1580 [ 9795.417309][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9795.417309][ T254] ip6_route_add+0x1c/0x140 [ 9795.417309][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9795.417309][ T254] addrconf_add_dev+0xe2/0x170 [ 9795.417309][ T254] inet6_addr_add+0x12f/0xa40 [ 9795.417309][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9795.417309][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9795.417309][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.417309][ T254] netlink_unicast+0x449/0x710 [ 9795.417309][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.417309][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.417309][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.417309][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.417309][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.417309][ T254] [ 9795.419510][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.419510][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9795.419510][ T254] ipv6_find_idev+0x102/0x170 [ 9795.419510][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9795.419510][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9795.419510][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.419510][ T254] netlink_unicast+0x449/0x710 [ 9795.419510][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.419510][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.419510][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.419510][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.419510][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.419510][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9795.419510][ T254] [ 9795.421228][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9795.421228][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9795.421228][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9795.421228][ T254] ipv6_find_idev+0x102/0x170 [ 9795.421228][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9795.421228][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9795.421228][ T254] netlink_rcv_skb+0x130/0x360 [ 9795.421228][ T254] netlink_unicast+0x449/0x710 [ 9795.421228][ T254] netlink_sendmsg+0x723/0xbe0 [ 9795.421228][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9795.421228][ T254] ___sys_sendmsg+0xee/0x170 [ 9795.421228][ T254] __sys_sendmsg+0xcd/0x170 [ 9795.421228][ T254] do_syscall_64+0xc6/0x1e0 [ 9795.421228][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9795.421228][ T254] [ 9805.663886][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9805.664439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.664439][ T254] dst_init+0x84/0x4a0 [ 9805.664439][ T254] dst_alloc+0x97/0x150 [ 9805.664439][ T254] ip6_dst_alloc+0x23/0x90 [ 9805.664439][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9805.664439][ T254] ip6_pol_route+0x56f/0x840 [ 9805.664439][ T254] fib6_rule_lookup+0x334/0x630 [ 9805.664439][ T254] ip6_route_output_flags+0x259/0x480 [ 9805.664439][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9805.664439][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9805.664439][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.664439][ T254] netlink_unicast+0x449/0x710 [ 9805.664439][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.664439][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.664439][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.664439][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.664439][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.664439][ T254] [ 9805.666654][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.666654][ T254] netdev_get_by_index+0x5e/0x80 [ 9805.666654][ T254] fib6_nh_init+0x3d8/0x1580 [ 9805.666654][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9805.666654][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9805.666654][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9805.666654][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9805.666654][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9805.666654][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9805.666654][ T254] addrconf_dad_begin+0x310/0x670 [ 9805.666654][ T254] addrconf_dad_work+0x10b/0xab0 [ 9805.666654][ T254] process_one_work+0x84d/0x18a0 [ 9805.666654][ T254] worker_thread+0x587/0xd30 [ 9805.666654][ T254] kthread+0x28a/0x350 [ 9805.666654][ T254] ret_from_fork+0x31/0x70 [ 9805.666654][ T254] ret_from_fork_asm+0x1a/0x30 [ 9805.666654][ T254] [ 9805.668795][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.668795][ T254] netdev_get_by_index+0x5e/0x80 [ 9805.668795][ T254] fib6_nh_init+0x3d8/0x1580 [ 9805.668795][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9805.668795][ T254] ip6_route_add+0x1c/0x140 [ 9805.668795][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9805.668795][ T254] inet6_addr_add+0x4f8/0xa40 [ 9805.668795][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9805.668795][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9805.668795][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.668795][ T254] netlink_unicast+0x449/0x710 [ 9805.668795][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.668795][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.668795][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.668795][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.668795][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.668795][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9805.668795][ T254] [ 9805.671031][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.671031][ T254] netdev_get_by_index+0x5e/0x80 [ 9805.671031][ T254] fib6_nh_init+0x3d8/0x1580 [ 9805.671031][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9805.671031][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9805.671031][ T254] ipv6_add_addr+0x411/0x2000 [ 9805.671031][ T254] inet6_addr_add+0x30e/0xa40 [ 9805.671031][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9805.671031][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9805.671031][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.671031][ T254] netlink_unicast+0x449/0x710 [ 9805.671031][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.671031][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.671031][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.671031][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.671031][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.671031][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9805.671031][ T254] [ 9805.673290][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.673290][ T254] netdev_get_by_index+0x5e/0x80 [ 9805.673290][ T254] fib6_nh_init+0x3d8/0x1580 [ 9805.673290][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9805.673290][ T254] ip6_route_add+0x1c/0x140 [ 9805.673290][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9805.673290][ T254] addrconf_add_dev+0xe2/0x170 [ 9805.673290][ T254] inet6_addr_add+0x12f/0xa40 [ 9805.673290][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9805.673290][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9805.673290][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.673290][ T254] netlink_unicast+0x449/0x710 [ 9805.673290][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.673290][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.673290][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.673290][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.673290][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.673290][ T254] [ 9805.675501][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.675501][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9805.675501][ T254] ipv6_find_idev+0x102/0x170 [ 9805.675501][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9805.675501][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9805.675501][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.675501][ T254] netlink_unicast+0x449/0x710 [ 9805.675501][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.675501][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.675501][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.675501][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.675501][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.675501][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9805.675501][ T254] [ 9805.677220][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9805.677220][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9805.677220][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9805.677220][ T254] ipv6_find_idev+0x102/0x170 [ 9805.677220][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9805.677220][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9805.677220][ T254] netlink_rcv_skb+0x130/0x360 [ 9805.677220][ T254] netlink_unicast+0x449/0x710 [ 9805.677220][ T254] netlink_sendmsg+0x723/0xbe0 [ 9805.677220][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9805.677220][ T254] ___sys_sendmsg+0xee/0x170 [ 9805.677220][ T254] __sys_sendmsg+0xcd/0x170 [ 9805.677220][ T254] do_syscall_64+0xc6/0x1e0 [ 9805.677220][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9805.677220][ T254] [ 9815.927917][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9815.928499][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.928499][ T254] dst_init+0x84/0x4a0 [ 9815.928499][ T254] dst_alloc+0x97/0x150 [ 9815.928499][ T254] ip6_dst_alloc+0x23/0x90 [ 9815.928499][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9815.928499][ T254] ip6_pol_route+0x56f/0x840 [ 9815.928499][ T254] fib6_rule_lookup+0x334/0x630 [ 9815.928499][ T254] ip6_route_output_flags+0x259/0x480 [ 9815.928499][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9815.928499][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9815.928499][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.928499][ T254] netlink_unicast+0x449/0x710 [ 9815.928499][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.928499][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.928499][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.928499][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.928499][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.928499][ T254] [ 9815.930732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.930732][ T254] netdev_get_by_index+0x5e/0x80 [ 9815.930732][ T254] fib6_nh_init+0x3d8/0x1580 [ 9815.930732][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9815.930732][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9815.930732][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9815.930732][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9815.930732][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9815.930732][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9815.930732][ T254] addrconf_dad_begin+0x310/0x670 [ 9815.930732][ T254] addrconf_dad_work+0x10b/0xab0 [ 9815.930732][ T254] process_one_work+0x84d/0x18a0 [ 9815.930732][ T254] worker_thread+0x587/0xd30 [ 9815.930732][ T254] kthread+0x28a/0x350 [ 9815.930732][ T254] ret_from_fork+0x31/0x70 [ 9815.930732][ T254] ret_from_fork_asm+0x1a/0x30 [ 9815.930732][ T254] [ 9815.932952][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.932952][ T254] netdev_get_by_index+0x5e/0x80 [ 9815.932952][ T254] fib6_nh_init+0x3d8/0x1580 [ 9815.932952][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9815.932952][ T254] ip6_route_add+0x1c/0x140 [ 9815.932952][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9815.932952][ T254] inet6_addr_add+0x4f8/0xa40 [ 9815.932952][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9815.932952][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9815.932952][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.932952][ T254] netlink_unicast+0x449/0x710 [ 9815.932952][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.932952][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.932952][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.932952][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.932952][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.932952][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9815.932952][ T254] [ 9815.935215][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.935215][ T254] netdev_get_by_index+0x5e/0x80 [ 9815.935215][ T254] fib6_nh_init+0x3d8/0x1580 [ 9815.935215][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9815.935215][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9815.935215][ T254] ipv6_add_addr+0x411/0x2000 [ 9815.935215][ T254] inet6_addr_add+0x30e/0xa40 [ 9815.935215][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9815.935215][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9815.935215][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.935215][ T254] netlink_unicast+0x449/0x710 [ 9815.935215][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.935215][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.935215][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.935215][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.935215][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.935215][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9815.935215][ T254] [ 9815.937485][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.937485][ T254] netdev_get_by_index+0x5e/0x80 [ 9815.937485][ T254] fib6_nh_init+0x3d8/0x1580 [ 9815.937485][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9815.937485][ T254] ip6_route_add+0x1c/0x140 [ 9815.937485][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9815.937485][ T254] addrconf_add_dev+0xe2/0x170 [ 9815.937485][ T254] inet6_addr_add+0x12f/0xa40 [ 9815.937485][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9815.937485][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9815.937485][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.937485][ T254] netlink_unicast+0x449/0x710 [ 9815.937485][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.937485][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.937485][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.937485][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.937485][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.937485][ T254] [ 9815.939709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.939709][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9815.939709][ T254] ipv6_find_idev+0x102/0x170 [ 9815.939709][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9815.939709][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9815.939709][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.939709][ T254] netlink_unicast+0x449/0x710 [ 9815.939709][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.939709][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.939709][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.939709][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.939709][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.939709][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9815.939709][ T254] [ 9815.941476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9815.941476][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9815.941476][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9815.941476][ T254] ipv6_find_idev+0x102/0x170 [ 9815.941476][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9815.941476][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9815.941476][ T254] netlink_rcv_skb+0x130/0x360 [ 9815.941476][ T254] netlink_unicast+0x449/0x710 [ 9815.941476][ T254] netlink_sendmsg+0x723/0xbe0 [ 9815.941476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9815.941476][ T254] ___sys_sendmsg+0xee/0x170 [ 9815.941476][ T254] __sys_sendmsg+0xcd/0x170 [ 9815.941476][ T254] do_syscall_64+0xc6/0x1e0 [ 9815.941476][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9815.941476][ T254] [ 9826.191920][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9826.192479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.192479][ T254] dst_init+0x84/0x4a0 [ 9826.192479][ T254] dst_alloc+0x97/0x150 [ 9826.192479][ T254] ip6_dst_alloc+0x23/0x90 [ 9826.192479][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9826.192479][ T254] ip6_pol_route+0x56f/0x840 [ 9826.192479][ T254] fib6_rule_lookup+0x334/0x630 [ 9826.192479][ T254] ip6_route_output_flags+0x259/0x480 [ 9826.192479][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9826.192479][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9826.192479][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.192479][ T254] netlink_unicast+0x449/0x710 [ 9826.192479][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.192479][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.192479][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.192479][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.192479][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.192479][ T254] [ 9826.194718][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.194718][ T254] netdev_get_by_index+0x5e/0x80 [ 9826.194718][ T254] fib6_nh_init+0x3d8/0x1580 [ 9826.194718][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9826.194718][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9826.194718][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9826.194718][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9826.194718][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9826.194718][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9826.194718][ T254] addrconf_dad_begin+0x310/0x670 [ 9826.194718][ T254] addrconf_dad_work+0x10b/0xab0 [ 9826.194718][ T254] process_one_work+0x84d/0x18a0 [ 9826.194718][ T254] worker_thread+0x587/0xd30 [ 9826.194718][ T254] kthread+0x28a/0x350 [ 9826.194718][ T254] ret_from_fork+0x31/0x70 [ 9826.194718][ T254] ret_from_fork_asm+0x1a/0x30 [ 9826.194718][ T254] [ 9826.196863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.196863][ T254] netdev_get_by_index+0x5e/0x80 [ 9826.196863][ T254] fib6_nh_init+0x3d8/0x1580 [ 9826.196863][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9826.196863][ T254] ip6_route_add+0x1c/0x140 [ 9826.196863][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9826.196863][ T254] inet6_addr_add+0x4f8/0xa40 [ 9826.196863][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9826.196863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9826.196863][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.196863][ T254] netlink_unicast+0x449/0x710 [ 9826.196863][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.196863][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.196863][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.196863][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.196863][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.196863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9826.196863][ T254] [ 9826.199105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.199105][ T254] netdev_get_by_index+0x5e/0x80 [ 9826.199105][ T254] fib6_nh_init+0x3d8/0x1580 [ 9826.199105][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9826.199105][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9826.199105][ T254] ipv6_add_addr+0x411/0x2000 [ 9826.199105][ T254] inet6_addr_add+0x30e/0xa40 [ 9826.199105][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9826.199105][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9826.199105][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.199105][ T254] netlink_unicast+0x449/0x710 [ 9826.199105][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.199105][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.199105][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.199105][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.199105][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.199105][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9826.199105][ T254] [ 9826.201345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.201345][ T254] netdev_get_by_index+0x5e/0x80 [ 9826.201345][ T254] fib6_nh_init+0x3d8/0x1580 [ 9826.201345][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9826.201345][ T254] ip6_route_add+0x1c/0x140 [ 9826.201345][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9826.201345][ T254] addrconf_add_dev+0xe2/0x170 [ 9826.201345][ T254] inet6_addr_add+0x12f/0xa40 [ 9826.201345][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9826.201345][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9826.201345][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.201345][ T254] netlink_unicast+0x449/0x710 [ 9826.201345][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.201345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.201345][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.201345][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.201345][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.201345][ T254] [ 9826.203572][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.203572][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9826.203572][ T254] ipv6_find_idev+0x102/0x170 [ 9826.203572][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9826.203572][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9826.203572][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.203572][ T254] netlink_unicast+0x449/0x710 [ 9826.203572][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.203572][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.203572][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.203572][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.203572][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.203572][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9826.203572][ T254] [ 9826.205292][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9826.205292][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9826.205292][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9826.205292][ T254] ipv6_find_idev+0x102/0x170 [ 9826.205292][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9826.205292][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9826.205292][ T254] netlink_rcv_skb+0x130/0x360 [ 9826.205292][ T254] netlink_unicast+0x449/0x710 [ 9826.205292][ T254] netlink_sendmsg+0x723/0xbe0 [ 9826.205292][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9826.205292][ T254] ___sys_sendmsg+0xee/0x170 [ 9826.205292][ T254] __sys_sendmsg+0xcd/0x170 [ 9826.205292][ T254] do_syscall_64+0xc6/0x1e0 [ 9826.205292][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9826.205292][ T254] [ 9836.455890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9836.456431][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.456431][ T254] dst_init+0x84/0x4a0 [ 9836.456431][ T254] dst_alloc+0x97/0x150 [ 9836.456431][ T254] ip6_dst_alloc+0x23/0x90 [ 9836.456431][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9836.456431][ T254] ip6_pol_route+0x56f/0x840 [ 9836.456431][ T254] fib6_rule_lookup+0x334/0x630 [ 9836.456431][ T254] ip6_route_output_flags+0x259/0x480 [ 9836.456431][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9836.456431][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9836.456431][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.456431][ T254] netlink_unicast+0x449/0x710 [ 9836.456431][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.456431][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.456431][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.456431][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.456431][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.456431][ T254] [ 9836.458646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.458646][ T254] netdev_get_by_index+0x5e/0x80 [ 9836.458646][ T254] fib6_nh_init+0x3d8/0x1580 [ 9836.458646][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9836.458646][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9836.458646][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9836.458646][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9836.458646][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9836.458646][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9836.458646][ T254] addrconf_dad_begin+0x310/0x670 [ 9836.458646][ T254] addrconf_dad_work+0x10b/0xab0 [ 9836.458646][ T254] process_one_work+0x84d/0x18a0 [ 9836.458646][ T254] worker_thread+0x587/0xd30 [ 9836.458646][ T254] kthread+0x28a/0x350 [ 9836.458646][ T254] ret_from_fork+0x31/0x70 [ 9836.458646][ T254] ret_from_fork_asm+0x1a/0x30 [ 9836.458646][ T254] [ 9836.460790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.460790][ T254] netdev_get_by_index+0x5e/0x80 [ 9836.460790][ T254] fib6_nh_init+0x3d8/0x1580 [ 9836.460790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9836.460790][ T254] ip6_route_add+0x1c/0x140 [ 9836.460790][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9836.460790][ T254] inet6_addr_add+0x4f8/0xa40 [ 9836.460790][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9836.460790][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9836.460790][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.460790][ T254] netlink_unicast+0x449/0x710 [ 9836.460790][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.460790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.460790][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.460790][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.460790][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.460790][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9836.460790][ T254] [ 9836.463093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.463093][ T254] netdev_get_by_index+0x5e/0x80 [ 9836.463093][ T254] fib6_nh_init+0x3d8/0x1580 [ 9836.463093][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9836.463093][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9836.463093][ T254] ipv6_add_addr+0x411/0x2000 [ 9836.463093][ T254] inet6_addr_add+0x30e/0xa40 [ 9836.463093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9836.463093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9836.463093][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.463093][ T254] netlink_unicast+0x449/0x710 [ 9836.463093][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.463093][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.463093][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.463093][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.463093][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.463093][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9836.463093][ T254] [ 9836.465328][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.465328][ T254] netdev_get_by_index+0x5e/0x80 [ 9836.465328][ T254] fib6_nh_init+0x3d8/0x1580 [ 9836.465328][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9836.465328][ T254] ip6_route_add+0x1c/0x140 [ 9836.465328][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9836.465328][ T254] addrconf_add_dev+0xe2/0x170 [ 9836.465328][ T254] inet6_addr_add+0x12f/0xa40 [ 9836.465328][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9836.465328][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9836.465328][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.465328][ T254] netlink_unicast+0x449/0x710 [ 9836.465328][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.465328][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.465328][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.465328][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.465328][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.465328][ T254] [ 9836.467528][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.467528][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9836.467528][ T254] ipv6_find_idev+0x102/0x170 [ 9836.467528][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9836.467528][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9836.467528][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.467528][ T254] netlink_unicast+0x449/0x710 [ 9836.467528][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.467528][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.467528][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.467528][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.467528][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.467528][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9836.467528][ T254] [ 9836.469247][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9836.469247][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9836.469247][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9836.469247][ T254] ipv6_find_idev+0x102/0x170 [ 9836.469247][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9836.469247][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9836.469247][ T254] netlink_rcv_skb+0x130/0x360 [ 9836.469247][ T254] netlink_unicast+0x449/0x710 [ 9836.469247][ T254] netlink_sendmsg+0x723/0xbe0 [ 9836.469247][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9836.469247][ T254] ___sys_sendmsg+0xee/0x170 [ 9836.469247][ T254] __sys_sendmsg+0xcd/0x170 [ 9836.469247][ T254] do_syscall_64+0xc6/0x1e0 [ 9836.469247][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9836.469247][ T254] [ 9846.719849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9846.720393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.720393][ T254] dst_init+0x84/0x4a0 [ 9846.720393][ T254] dst_alloc+0x97/0x150 [ 9846.720393][ T254] ip6_dst_alloc+0x23/0x90 [ 9846.720393][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9846.720393][ T254] ip6_pol_route+0x56f/0x840 [ 9846.720393][ T254] fib6_rule_lookup+0x334/0x630 [ 9846.720393][ T254] ip6_route_output_flags+0x259/0x480 [ 9846.720393][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9846.720393][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9846.720393][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.720393][ T254] netlink_unicast+0x449/0x710 [ 9846.720393][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.720393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.720393][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.720393][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.720393][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.720393][ T254] [ 9846.722638][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.722638][ T254] netdev_get_by_index+0x5e/0x80 [ 9846.722638][ T254] fib6_nh_init+0x3d8/0x1580 [ 9846.722638][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9846.722638][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9846.722638][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9846.722638][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9846.722638][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9846.722638][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9846.722638][ T254] addrconf_dad_begin+0x310/0x670 [ 9846.722638][ T254] addrconf_dad_work+0x10b/0xab0 [ 9846.722638][ T254] process_one_work+0x84d/0x18a0 [ 9846.722638][ T254] worker_thread+0x587/0xd30 [ 9846.722638][ T254] kthread+0x28a/0x350 [ 9846.722638][ T254] ret_from_fork+0x31/0x70 [ 9846.722638][ T254] ret_from_fork_asm+0x1a/0x30 [ 9846.722638][ T254] [ 9846.724790][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.724790][ T254] netdev_get_by_index+0x5e/0x80 [ 9846.724790][ T254] fib6_nh_init+0x3d8/0x1580 [ 9846.724790][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9846.724790][ T254] ip6_route_add+0x1c/0x140 [ 9846.724790][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9846.724790][ T254] inet6_addr_add+0x4f8/0xa40 [ 9846.724790][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9846.724790][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9846.724790][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.724790][ T254] netlink_unicast+0x449/0x710 [ 9846.724790][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.724790][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.724790][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.724790][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.724790][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.724790][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9846.724790][ T254] [ 9846.727057][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.727057][ T254] netdev_get_by_index+0x5e/0x80 [ 9846.727057][ T254] fib6_nh_init+0x3d8/0x1580 [ 9846.727057][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9846.727057][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9846.727057][ T254] ipv6_add_addr+0x411/0x2000 [ 9846.727057][ T254] inet6_addr_add+0x30e/0xa40 [ 9846.727057][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9846.727057][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9846.727057][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.727057][ T254] netlink_unicast+0x449/0x710 [ 9846.727057][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.727057][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.727057][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.727057][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.727057][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.727057][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9846.727057][ T254] [ 9846.729315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.729315][ T254] netdev_get_by_index+0x5e/0x80 [ 9846.729315][ T254] fib6_nh_init+0x3d8/0x1580 [ 9846.729315][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9846.729315][ T254] ip6_route_add+0x1c/0x140 [ 9846.729315][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9846.729315][ T254] addrconf_add_dev+0xe2/0x170 [ 9846.729315][ T254] inet6_addr_add+0x12f/0xa40 [ 9846.729315][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9846.729315][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9846.729315][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.729315][ T254] netlink_unicast+0x449/0x710 [ 9846.729315][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.729315][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.729315][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.729315][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.729315][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.729315][ T254] [ 9846.731526][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.731526][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9846.731526][ T254] ipv6_find_idev+0x102/0x170 [ 9846.731526][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9846.731526][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9846.731526][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.731526][ T254] netlink_unicast+0x449/0x710 [ 9846.731526][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.731526][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.731526][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.731526][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.731526][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.731526][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9846.731526][ T254] [ 9846.733270][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9846.733270][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9846.733270][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9846.733270][ T254] ipv6_find_idev+0x102/0x170 [ 9846.733270][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9846.733270][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9846.733270][ T254] netlink_rcv_skb+0x130/0x360 [ 9846.733270][ T254] netlink_unicast+0x449/0x710 [ 9846.733270][ T254] netlink_sendmsg+0x723/0xbe0 [ 9846.733270][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9846.733270][ T254] ___sys_sendmsg+0xee/0x170 [ 9846.733270][ T254] __sys_sendmsg+0xcd/0x170 [ 9846.733270][ T254] do_syscall_64+0xc6/0x1e0 [ 9846.733270][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9846.733270][ T254] [ 9856.983843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9856.984402][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.984402][ T254] dst_init+0x84/0x4a0 [ 9856.984402][ T254] dst_alloc+0x97/0x150 [ 9856.984402][ T254] ip6_dst_alloc+0x23/0x90 [ 9856.984402][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9856.984402][ T254] ip6_pol_route+0x56f/0x840 [ 9856.984402][ T254] fib6_rule_lookup+0x334/0x630 [ 9856.984402][ T254] ip6_route_output_flags+0x259/0x480 [ 9856.984402][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9856.984402][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9856.984402][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.984402][ T254] netlink_unicast+0x449/0x710 [ 9856.984402][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.984402][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.984402][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.984402][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.984402][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.984402][ T254] [ 9856.986629][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.986629][ T254] netdev_get_by_index+0x5e/0x80 [ 9856.986629][ T254] fib6_nh_init+0x3d8/0x1580 [ 9856.986629][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9856.986629][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9856.986629][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9856.986629][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9856.986629][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9856.986629][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9856.986629][ T254] addrconf_dad_begin+0x310/0x670 [ 9856.986629][ T254] addrconf_dad_work+0x10b/0xab0 [ 9856.986629][ T254] process_one_work+0x84d/0x18a0 [ 9856.986629][ T254] worker_thread+0x587/0xd30 [ 9856.986629][ T254] kthread+0x28a/0x350 [ 9856.986629][ T254] ret_from_fork+0x31/0x70 [ 9856.986629][ T254] ret_from_fork_asm+0x1a/0x30 [ 9856.986629][ T254] [ 9856.988792][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.988792][ T254] netdev_get_by_index+0x5e/0x80 [ 9856.988792][ T254] fib6_nh_init+0x3d8/0x1580 [ 9856.988792][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9856.988792][ T254] ip6_route_add+0x1c/0x140 [ 9856.988792][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9856.988792][ T254] inet6_addr_add+0x4f8/0xa40 [ 9856.988792][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9856.988792][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9856.988792][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.988792][ T254] netlink_unicast+0x449/0x710 [ 9856.988792][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.988792][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.988792][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.988792][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.988792][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.988792][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9856.988792][ T254] [ 9856.991067][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.991067][ T254] netdev_get_by_index+0x5e/0x80 [ 9856.991067][ T254] fib6_nh_init+0x3d8/0x1580 [ 9856.991067][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9856.991067][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9856.991067][ T254] ipv6_add_addr+0x411/0x2000 [ 9856.991067][ T254] inet6_addr_add+0x30e/0xa40 [ 9856.991067][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9856.991067][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9856.991067][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.991067][ T254] netlink_unicast+0x449/0x710 [ 9856.991067][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.991067][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.991067][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.991067][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.991067][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.991067][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9856.991067][ T254] [ 9856.993366][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.993366][ T254] netdev_get_by_index+0x5e/0x80 [ 9856.993366][ T254] fib6_nh_init+0x3d8/0x1580 [ 9856.993366][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9856.993366][ T254] ip6_route_add+0x1c/0x140 [ 9856.993366][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9856.993366][ T254] addrconf_add_dev+0xe2/0x170 [ 9856.993366][ T254] inet6_addr_add+0x12f/0xa40 [ 9856.993366][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9856.993366][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9856.993366][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.993366][ T254] netlink_unicast+0x449/0x710 [ 9856.993366][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.993366][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.993366][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.993366][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.993366][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.993366][ T254] [ 9856.995582][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.995582][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9856.995582][ T254] ipv6_find_idev+0x102/0x170 [ 9856.995582][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9856.995582][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9856.995582][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.995582][ T254] netlink_unicast+0x449/0x710 [ 9856.995582][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.995582][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.995582][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.995582][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.995582][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.995582][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9856.995582][ T254] [ 9856.997324][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9856.997324][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9856.997324][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9856.997324][ T254] ipv6_find_idev+0x102/0x170 [ 9856.997324][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9856.997324][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9856.997324][ T254] netlink_rcv_skb+0x130/0x360 [ 9856.997324][ T254] netlink_unicast+0x449/0x710 [ 9856.997324][ T254] netlink_sendmsg+0x723/0xbe0 [ 9856.997324][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9856.997324][ T254] ___sys_sendmsg+0xee/0x170 [ 9856.997324][ T254] __sys_sendmsg+0xcd/0x170 [ 9856.997324][ T254] do_syscall_64+0xc6/0x1e0 [ 9856.997324][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9856.997324][ T254] [ 9867.039845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9867.040381][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.040381][ T254] dst_init+0x84/0x4a0 [ 9867.040381][ T254] dst_alloc+0x97/0x150 [ 9867.040381][ T254] ip6_dst_alloc+0x23/0x90 [ 9867.040381][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9867.040381][ T254] ip6_pol_route+0x56f/0x840 [ 9867.040381][ T254] fib6_rule_lookup+0x334/0x630 [ 9867.040381][ T254] ip6_route_output_flags+0x259/0x480 [ 9867.040381][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9867.040381][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9867.040381][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.040381][ T254] netlink_unicast+0x449/0x710 [ 9867.040381][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.040381][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.040381][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.040381][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.040381][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.040381][ T254] [ 9867.042605][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.042605][ T254] netdev_get_by_index+0x5e/0x80 [ 9867.042605][ T254] fib6_nh_init+0x3d8/0x1580 [ 9867.042605][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9867.042605][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9867.042605][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9867.042605][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9867.042605][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9867.042605][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9867.042605][ T254] addrconf_dad_begin+0x310/0x670 [ 9867.042605][ T254] addrconf_dad_work+0x10b/0xab0 [ 9867.042605][ T254] process_one_work+0x84d/0x18a0 [ 9867.042605][ T254] worker_thread+0x587/0xd30 [ 9867.042605][ T254] kthread+0x28a/0x350 [ 9867.042605][ T254] ret_from_fork+0x31/0x70 [ 9867.042605][ T254] ret_from_fork_asm+0x1a/0x30 [ 9867.042605][ T254] [ 9867.044751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.044751][ T254] netdev_get_by_index+0x5e/0x80 [ 9867.044751][ T254] fib6_nh_init+0x3d8/0x1580 [ 9867.044751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9867.044751][ T254] ip6_route_add+0x1c/0x140 [ 9867.044751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9867.044751][ T254] inet6_addr_add+0x4f8/0xa40 [ 9867.044751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9867.044751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9867.044751][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.044751][ T254] netlink_unicast+0x449/0x710 [ 9867.044751][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.044751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.044751][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.044751][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.044751][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.044751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9867.044751][ T254] [ 9867.046997][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.046997][ T254] netdev_get_by_index+0x5e/0x80 [ 9867.046997][ T254] fib6_nh_init+0x3d8/0x1580 [ 9867.046997][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9867.046997][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9867.046997][ T254] ipv6_add_addr+0x411/0x2000 [ 9867.046997][ T254] inet6_addr_add+0x30e/0xa40 [ 9867.046997][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9867.046997][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9867.046997][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.046997][ T254] netlink_unicast+0x449/0x710 [ 9867.046997][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.046997][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.046997][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.046997][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.046997][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.046997][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9867.046997][ T254] [ 9867.049236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.049236][ T254] netdev_get_by_index+0x5e/0x80 [ 9867.049236][ T254] fib6_nh_init+0x3d8/0x1580 [ 9867.049236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9867.049236][ T254] ip6_route_add+0x1c/0x140 [ 9867.049236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9867.049236][ T254] addrconf_add_dev+0xe2/0x170 [ 9867.049236][ T254] inet6_addr_add+0x12f/0xa40 [ 9867.049236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9867.049236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9867.049236][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.049236][ T254] netlink_unicast+0x449/0x710 [ 9867.049236][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.049236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.049236][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.049236][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.049236][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.049236][ T254] [ 9867.051437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.051437][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9867.051437][ T254] ipv6_find_idev+0x102/0x170 [ 9867.051437][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9867.051437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9867.051437][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.051437][ T254] netlink_unicast+0x449/0x710 [ 9867.051437][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.051437][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.051437][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.051437][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.051437][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.051437][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9867.051437][ T254] [ 9867.053168][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9867.053168][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9867.053168][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9867.053168][ T254] ipv6_find_idev+0x102/0x170 [ 9867.053168][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9867.053168][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9867.053168][ T254] netlink_rcv_skb+0x130/0x360 [ 9867.053168][ T254] netlink_unicast+0x449/0x710 [ 9867.053168][ T254] netlink_sendmsg+0x723/0xbe0 [ 9867.053168][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9867.053168][ T254] ___sys_sendmsg+0xee/0x170 [ 9867.053168][ T254] __sys_sendmsg+0xcd/0x170 [ 9867.053168][ T254] do_syscall_64+0xc6/0x1e0 [ 9867.053168][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9867.053168][ T254] [ 9877.151907][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9877.152476][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.152476][ T254] dst_init+0x84/0x4a0 [ 9877.152476][ T254] dst_alloc+0x97/0x150 [ 9877.152476][ T254] ip6_dst_alloc+0x23/0x90 [ 9877.152476][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9877.152476][ T254] ip6_pol_route+0x56f/0x840 [ 9877.152476][ T254] fib6_rule_lookup+0x334/0x630 [ 9877.152476][ T254] ip6_route_output_flags+0x259/0x480 [ 9877.152476][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9877.152476][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9877.152476][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.152476][ T254] netlink_unicast+0x449/0x710 [ 9877.152476][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.152476][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.152476][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.152476][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.152476][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.152476][ T254] [ 9877.154712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.154712][ T254] netdev_get_by_index+0x5e/0x80 [ 9877.154712][ T254] fib6_nh_init+0x3d8/0x1580 [ 9877.154712][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9877.154712][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9877.154712][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9877.154712][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9877.154712][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9877.154712][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9877.154712][ T254] addrconf_dad_begin+0x310/0x670 [ 9877.154712][ T254] addrconf_dad_work+0x10b/0xab0 [ 9877.154712][ T254] process_one_work+0x84d/0x18a0 [ 9877.154712][ T254] worker_thread+0x587/0xd30 [ 9877.154712][ T254] kthread+0x28a/0x350 [ 9877.154712][ T254] ret_from_fork+0x31/0x70 [ 9877.154712][ T254] ret_from_fork_asm+0x1a/0x30 [ 9877.154712][ T254] [ 9877.156899][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.156899][ T254] netdev_get_by_index+0x5e/0x80 [ 9877.156899][ T254] fib6_nh_init+0x3d8/0x1580 [ 9877.156899][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9877.156899][ T254] ip6_route_add+0x1c/0x140 [ 9877.156899][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9877.156899][ T254] inet6_addr_add+0x4f8/0xa40 [ 9877.156899][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9877.156899][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9877.156899][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.156899][ T254] netlink_unicast+0x449/0x710 [ 9877.156899][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.156899][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.156899][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.156899][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.156899][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.156899][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9877.156899][ T254] [ 9877.159170][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.159170][ T254] netdev_get_by_index+0x5e/0x80 [ 9877.159170][ T254] fib6_nh_init+0x3d8/0x1580 [ 9877.159170][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9877.159170][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9877.159170][ T254] ipv6_add_addr+0x411/0x2000 [ 9877.159170][ T254] inet6_addr_add+0x30e/0xa40 [ 9877.159170][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9877.159170][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9877.159170][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.159170][ T254] netlink_unicast+0x449/0x710 [ 9877.159170][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.159170][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.159170][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.159170][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.159170][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.159170][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9877.159170][ T254] [ 9877.161442][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.161442][ T254] netdev_get_by_index+0x5e/0x80 [ 9877.161442][ T254] fib6_nh_init+0x3d8/0x1580 [ 9877.161442][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9877.161442][ T254] ip6_route_add+0x1c/0x140 [ 9877.161442][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9877.161442][ T254] addrconf_add_dev+0xe2/0x170 [ 9877.161442][ T254] inet6_addr_add+0x12f/0xa40 [ 9877.161442][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9877.161442][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9877.161442][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.161442][ T254] netlink_unicast+0x449/0x710 [ 9877.161442][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.161442][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.161442][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.161442][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.161442][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.161442][ T254] [ 9877.163679][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.163679][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9877.163679][ T254] ipv6_find_idev+0x102/0x170 [ 9877.163679][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9877.163679][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9877.163679][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.163679][ T254] netlink_unicast+0x449/0x710 [ 9877.163679][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.163679][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.163679][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.163679][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.163679][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.163679][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9877.163679][ T254] [ 9877.165426][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9877.165426][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9877.165426][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9877.165426][ T254] ipv6_find_idev+0x102/0x170 [ 9877.165426][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9877.165426][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9877.165426][ T254] netlink_rcv_skb+0x130/0x360 [ 9877.165426][ T254] netlink_unicast+0x449/0x710 [ 9877.165426][ T254] netlink_sendmsg+0x723/0xbe0 [ 9877.165426][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9877.165426][ T254] ___sys_sendmsg+0xee/0x170 [ 9877.165426][ T254] __sys_sendmsg+0xcd/0x170 [ 9877.165426][ T254] do_syscall_64+0xc6/0x1e0 [ 9877.165426][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9877.165426][ T254] [ 9887.407852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9887.408394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.408394][ T254] dst_init+0x84/0x4a0 [ 9887.408394][ T254] dst_alloc+0x97/0x150 [ 9887.408394][ T254] ip6_dst_alloc+0x23/0x90 [ 9887.408394][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9887.408394][ T254] ip6_pol_route+0x56f/0x840 [ 9887.408394][ T254] fib6_rule_lookup+0x334/0x630 [ 9887.408394][ T254] ip6_route_output_flags+0x259/0x480 [ 9887.408394][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9887.408394][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9887.408394][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.408394][ T254] netlink_unicast+0x449/0x710 [ 9887.408394][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.408394][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.408394][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.408394][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.408394][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.408394][ T254] [ 9887.410593][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.410593][ T254] netdev_get_by_index+0x5e/0x80 [ 9887.410593][ T254] fib6_nh_init+0x3d8/0x1580 [ 9887.410593][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9887.410593][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9887.410593][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9887.410593][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9887.410593][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9887.410593][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9887.410593][ T254] addrconf_dad_begin+0x310/0x670 [ 9887.410593][ T254] addrconf_dad_work+0x10b/0xab0 [ 9887.410593][ T254] process_one_work+0x84d/0x18a0 [ 9887.410593][ T254] worker_thread+0x587/0xd30 [ 9887.410593][ T254] kthread+0x28a/0x350 [ 9887.410593][ T254] ret_from_fork+0x31/0x70 [ 9887.410593][ T254] ret_from_fork_asm+0x1a/0x30 [ 9887.410593][ T254] [ 9887.412764][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.412764][ T254] netdev_get_by_index+0x5e/0x80 [ 9887.412764][ T254] fib6_nh_init+0x3d8/0x1580 [ 9887.412764][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9887.412764][ T254] ip6_route_add+0x1c/0x140 [ 9887.412764][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9887.412764][ T254] inet6_addr_add+0x4f8/0xa40 [ 9887.412764][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9887.412764][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9887.412764][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.412764][ T254] netlink_unicast+0x449/0x710 [ 9887.412764][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.412764][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.412764][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.412764][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.412764][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.412764][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9887.412764][ T254] [ 9887.415004][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.415004][ T254] netdev_get_by_index+0x5e/0x80 [ 9887.415004][ T254] fib6_nh_init+0x3d8/0x1580 [ 9887.415004][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9887.415004][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9887.415004][ T254] ipv6_add_addr+0x411/0x2000 [ 9887.415004][ T254] inet6_addr_add+0x30e/0xa40 [ 9887.415004][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9887.415004][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9887.415004][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.415004][ T254] netlink_unicast+0x449/0x710 [ 9887.415004][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.415004][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.415004][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.415004][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.415004][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.415004][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9887.415004][ T254] [ 9887.417239][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.417239][ T254] netdev_get_by_index+0x5e/0x80 [ 9887.417239][ T254] fib6_nh_init+0x3d8/0x1580 [ 9887.417239][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9887.417239][ T254] ip6_route_add+0x1c/0x140 [ 9887.417239][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9887.417239][ T254] addrconf_add_dev+0xe2/0x170 [ 9887.417239][ T254] inet6_addr_add+0x12f/0xa40 [ 9887.417239][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9887.417239][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9887.417239][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.417239][ T254] netlink_unicast+0x449/0x710 [ 9887.417239][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.417239][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.417239][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.417239][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.417239][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.417239][ T254] [ 9887.419433][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.419433][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9887.419433][ T254] ipv6_find_idev+0x102/0x170 [ 9887.419433][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9887.419433][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9887.419433][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.419433][ T254] netlink_unicast+0x449/0x710 [ 9887.419433][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.419433][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.419433][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.419433][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.419433][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.419433][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9887.419433][ T254] [ 9887.421156][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9887.421156][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9887.421156][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9887.421156][ T254] ipv6_find_idev+0x102/0x170 [ 9887.421156][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9887.421156][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9887.421156][ T254] netlink_rcv_skb+0x130/0x360 [ 9887.421156][ T254] netlink_unicast+0x449/0x710 [ 9887.421156][ T254] netlink_sendmsg+0x723/0xbe0 [ 9887.421156][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9887.421156][ T254] ___sys_sendmsg+0xee/0x170 [ 9887.421156][ T254] __sys_sendmsg+0xcd/0x170 [ 9887.421156][ T254] do_syscall_64+0xc6/0x1e0 [ 9887.421156][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9887.421156][ T254] [ 9897.519847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9897.520392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.520392][ T254] dst_init+0x84/0x4a0 [ 9897.520392][ T254] dst_alloc+0x97/0x150 [ 9897.520392][ T254] ip6_dst_alloc+0x23/0x90 [ 9897.520392][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9897.520392][ T254] ip6_pol_route+0x56f/0x840 [ 9897.520392][ T254] fib6_rule_lookup+0x334/0x630 [ 9897.520392][ T254] ip6_route_output_flags+0x259/0x480 [ 9897.520392][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9897.520392][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9897.520392][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.520392][ T254] netlink_unicast+0x449/0x710 [ 9897.520392][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.520392][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.520392][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.520392][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.520392][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.520392][ T254] [ 9897.522611][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.522611][ T254] netdev_get_by_index+0x5e/0x80 [ 9897.522611][ T254] fib6_nh_init+0x3d8/0x1580 [ 9897.522611][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9897.522611][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9897.522611][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9897.522611][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9897.522611][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9897.522611][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9897.522611][ T254] addrconf_dad_begin+0x310/0x670 [ 9897.522611][ T254] addrconf_dad_work+0x10b/0xab0 [ 9897.522611][ T254] process_one_work+0x84d/0x18a0 [ 9897.522611][ T254] worker_thread+0x587/0xd30 [ 9897.522611][ T254] kthread+0x28a/0x350 [ 9897.522611][ T254] ret_from_fork+0x31/0x70 [ 9897.522611][ T254] ret_from_fork_asm+0x1a/0x30 [ 9897.522611][ T254] [ 9897.524780][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.524780][ T254] netdev_get_by_index+0x5e/0x80 [ 9897.524780][ T254] fib6_nh_init+0x3d8/0x1580 [ 9897.524780][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9897.524780][ T254] ip6_route_add+0x1c/0x140 [ 9897.524780][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9897.524780][ T254] inet6_addr_add+0x4f8/0xa40 [ 9897.524780][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9897.524780][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9897.524780][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.524780][ T254] netlink_unicast+0x449/0x710 [ 9897.524780][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.524780][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.524780][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.524780][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.524780][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.524780][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9897.524780][ T254] [ 9897.527012][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.527012][ T254] netdev_get_by_index+0x5e/0x80 [ 9897.527012][ T254] fib6_nh_init+0x3d8/0x1580 [ 9897.527012][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9897.527012][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9897.527012][ T254] ipv6_add_addr+0x411/0x2000 [ 9897.527012][ T254] inet6_addr_add+0x30e/0xa40 [ 9897.527012][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9897.527012][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9897.527012][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.527012][ T254] netlink_unicast+0x449/0x710 [ 9897.527012][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.527012][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.527012][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.527012][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.527012][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.527012][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9897.527012][ T254] [ 9897.529253][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.529253][ T254] netdev_get_by_index+0x5e/0x80 [ 9897.529253][ T254] fib6_nh_init+0x3d8/0x1580 [ 9897.529253][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9897.529253][ T254] ip6_route_add+0x1c/0x140 [ 9897.529253][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9897.529253][ T254] addrconf_add_dev+0xe2/0x170 [ 9897.529253][ T254] inet6_addr_add+0x12f/0xa40 [ 9897.529253][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9897.529253][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9897.529253][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.529253][ T254] netlink_unicast+0x449/0x710 [ 9897.529253][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.529253][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.529253][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.529253][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.529253][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.529253][ T254] [ 9897.531446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.531446][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9897.531446][ T254] ipv6_find_idev+0x102/0x170 [ 9897.531446][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9897.531446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9897.531446][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.531446][ T254] netlink_unicast+0x449/0x710 [ 9897.531446][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.531446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.531446][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.531446][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.531446][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.531446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9897.531446][ T254] [ 9897.533179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9897.533179][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9897.533179][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9897.533179][ T254] ipv6_find_idev+0x102/0x170 [ 9897.533179][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9897.533179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9897.533179][ T254] netlink_rcv_skb+0x130/0x360 [ 9897.533179][ T254] netlink_unicast+0x449/0x710 [ 9897.533179][ T254] netlink_sendmsg+0x723/0xbe0 [ 9897.533179][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9897.533179][ T254] ___sys_sendmsg+0xee/0x170 [ 9897.533179][ T254] __sys_sendmsg+0xcd/0x170 [ 9897.533179][ T254] do_syscall_64+0xc6/0x1e0 [ 9897.533179][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9897.533179][ T254] [ 9907.711861][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9907.712379][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.712379][ T254] dst_init+0x84/0x4a0 [ 9907.712379][ T254] dst_alloc+0x97/0x150 [ 9907.712379][ T254] ip6_dst_alloc+0x23/0x90 [ 9907.712379][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9907.712379][ T254] ip6_pol_route+0x56f/0x840 [ 9907.712379][ T254] fib6_rule_lookup+0x334/0x630 [ 9907.712379][ T254] ip6_route_output_flags+0x259/0x480 [ 9907.712379][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9907.712379][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9907.712379][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.712379][ T254] netlink_unicast+0x449/0x710 [ 9907.712379][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.712379][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.712379][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.712379][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.712379][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.712379][ T254] [ 9907.714590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.714590][ T254] netdev_get_by_index+0x5e/0x80 [ 9907.714590][ T254] fib6_nh_init+0x3d8/0x1580 [ 9907.714590][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9907.714590][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9907.714590][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9907.714590][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9907.714590][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9907.714590][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9907.714590][ T254] addrconf_dad_begin+0x310/0x670 [ 9907.714590][ T254] addrconf_dad_work+0x10b/0xab0 [ 9907.714590][ T254] process_one_work+0x84d/0x18a0 [ 9907.714590][ T254] worker_thread+0x587/0xd30 [ 9907.714590][ T254] kthread+0x28a/0x350 [ 9907.714590][ T254] ret_from_fork+0x31/0x70 [ 9907.714590][ T254] ret_from_fork_asm+0x1a/0x30 [ 9907.714590][ T254] [ 9907.716741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.716741][ T254] netdev_get_by_index+0x5e/0x80 [ 9907.716741][ T254] fib6_nh_init+0x3d8/0x1580 [ 9907.716741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9907.716741][ T254] ip6_route_add+0x1c/0x140 [ 9907.716741][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9907.716741][ T254] inet6_addr_add+0x4f8/0xa40 [ 9907.716741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9907.716741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9907.716741][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.716741][ T254] netlink_unicast+0x449/0x710 [ 9907.716741][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.716741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.716741][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.716741][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.716741][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.716741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9907.716741][ T254] [ 9907.718980][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.718980][ T254] netdev_get_by_index+0x5e/0x80 [ 9907.718980][ T254] fib6_nh_init+0x3d8/0x1580 [ 9907.718980][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9907.718980][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9907.718980][ T254] ipv6_add_addr+0x411/0x2000 [ 9907.718980][ T254] inet6_addr_add+0x30e/0xa40 [ 9907.718980][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9907.718980][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9907.718980][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.718980][ T254] netlink_unicast+0x449/0x710 [ 9907.718980][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.718980][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.718980][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.718980][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.718980][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.718980][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9907.718980][ T254] [ 9907.721235][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.721235][ T254] netdev_get_by_index+0x5e/0x80 [ 9907.721235][ T254] fib6_nh_init+0x3d8/0x1580 [ 9907.721235][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9907.721235][ T254] ip6_route_add+0x1c/0x140 [ 9907.721235][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9907.721235][ T254] addrconf_add_dev+0xe2/0x170 [ 9907.721235][ T254] inet6_addr_add+0x12f/0xa40 [ 9907.721235][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9907.721235][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9907.721235][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.721235][ T254] netlink_unicast+0x449/0x710 [ 9907.721235][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.721235][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.721235][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.721235][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.721235][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.721235][ T254] [ 9907.723446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.723446][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9907.723446][ T254] ipv6_find_idev+0x102/0x170 [ 9907.723446][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9907.723446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9907.723446][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.723446][ T254] netlink_unicast+0x449/0x710 [ 9907.723446][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.723446][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.723446][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.723446][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.723446][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.723446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9907.723446][ T254] [ 9907.725174][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9907.725174][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9907.725174][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9907.725174][ T254] ipv6_find_idev+0x102/0x170 [ 9907.725174][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9907.725174][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9907.725174][ T254] netlink_rcv_skb+0x130/0x360 [ 9907.725174][ T254] netlink_unicast+0x449/0x710 [ 9907.725174][ T254] netlink_sendmsg+0x723/0xbe0 [ 9907.725174][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9907.725174][ T254] ___sys_sendmsg+0xee/0x170 [ 9907.725174][ T254] __sys_sendmsg+0xcd/0x170 [ 9907.725174][ T254] do_syscall_64+0xc6/0x1e0 [ 9907.725174][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9907.725174][ T254] [ 9917.919845][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9917.920368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.920368][ T254] dst_init+0x84/0x4a0 [ 9917.920368][ T254] dst_alloc+0x97/0x150 [ 9917.920368][ T254] ip6_dst_alloc+0x23/0x90 [ 9917.920368][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9917.920368][ T254] ip6_pol_route+0x56f/0x840 [ 9917.920368][ T254] fib6_rule_lookup+0x334/0x630 [ 9917.920368][ T254] ip6_route_output_flags+0x259/0x480 [ 9917.920368][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9917.920368][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9917.920368][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.920368][ T254] netlink_unicast+0x449/0x710 [ 9917.920368][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.920368][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.920368][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.920368][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.920368][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.920368][ T254] [ 9917.922596][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.922596][ T254] netdev_get_by_index+0x5e/0x80 [ 9917.922596][ T254] fib6_nh_init+0x3d8/0x1580 [ 9917.922596][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9917.922596][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9917.922596][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9917.922596][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9917.922596][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9917.922596][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9917.922596][ T254] addrconf_dad_begin+0x310/0x670 [ 9917.922596][ T254] addrconf_dad_work+0x10b/0xab0 [ 9917.922596][ T254] process_one_work+0x84d/0x18a0 [ 9917.922596][ T254] worker_thread+0x587/0xd30 [ 9917.922596][ T254] kthread+0x28a/0x350 [ 9917.922596][ T254] ret_from_fork+0x31/0x70 [ 9917.922596][ T254] ret_from_fork_asm+0x1a/0x30 [ 9917.922596][ T254] [ 9917.924766][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.924766][ T254] netdev_get_by_index+0x5e/0x80 [ 9917.924766][ T254] fib6_nh_init+0x3d8/0x1580 [ 9917.924766][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9917.924766][ T254] ip6_route_add+0x1c/0x140 [ 9917.924766][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9917.924766][ T254] inet6_addr_add+0x4f8/0xa40 [ 9917.924766][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9917.924766][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9917.924766][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.924766][ T254] netlink_unicast+0x449/0x710 [ 9917.924766][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.924766][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.924766][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.924766][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.924766][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.924766][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9917.924766][ T254] [ 9917.927015][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.927015][ T254] netdev_get_by_index+0x5e/0x80 [ 9917.927015][ T254] fib6_nh_init+0x3d8/0x1580 [ 9917.927015][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9917.927015][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9917.927015][ T254] ipv6_add_addr+0x411/0x2000 [ 9917.927015][ T254] inet6_addr_add+0x30e/0xa40 [ 9917.927015][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9917.927015][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9917.927015][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.927015][ T254] netlink_unicast+0x449/0x710 [ 9917.927015][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.927015][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.927015][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.927015][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.927015][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.927015][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9917.927015][ T254] [ 9917.929260][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.929260][ T254] netdev_get_by_index+0x5e/0x80 [ 9917.929260][ T254] fib6_nh_init+0x3d8/0x1580 [ 9917.929260][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9917.929260][ T254] ip6_route_add+0x1c/0x140 [ 9917.929260][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9917.929260][ T254] addrconf_add_dev+0xe2/0x170 [ 9917.929260][ T254] inet6_addr_add+0x12f/0xa40 [ 9917.929260][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9917.929260][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9917.929260][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.929260][ T254] netlink_unicast+0x449/0x710 [ 9917.929260][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.929260][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.929260][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.929260][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.929260][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.929260][ T254] [ 9917.931458][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.931458][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9917.931458][ T254] ipv6_find_idev+0x102/0x170 [ 9917.931458][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9917.931458][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9917.931458][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.931458][ T254] netlink_unicast+0x449/0x710 [ 9917.931458][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.931458][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.931458][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.931458][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.931458][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.931458][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9917.931458][ T254] [ 9917.933191][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9917.933191][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9917.933191][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9917.933191][ T254] ipv6_find_idev+0x102/0x170 [ 9917.933191][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9917.933191][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9917.933191][ T254] netlink_rcv_skb+0x130/0x360 [ 9917.933191][ T254] netlink_unicast+0x449/0x710 [ 9917.933191][ T254] netlink_sendmsg+0x723/0xbe0 [ 9917.933191][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9917.933191][ T254] ___sys_sendmsg+0xee/0x170 [ 9917.933191][ T254] __sys_sendmsg+0xcd/0x170 [ 9917.933191][ T254] do_syscall_64+0xc6/0x1e0 [ 9917.933191][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9917.933191][ T254] [ 9928.015846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9928.016386][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.016386][ T254] dst_init+0x84/0x4a0 [ 9928.016386][ T254] dst_alloc+0x97/0x150 [ 9928.016386][ T254] ip6_dst_alloc+0x23/0x90 [ 9928.016386][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9928.016386][ T254] ip6_pol_route+0x56f/0x840 [ 9928.016386][ T254] fib6_rule_lookup+0x334/0x630 [ 9928.016386][ T254] ip6_route_output_flags+0x259/0x480 [ 9928.016386][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9928.016386][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9928.016386][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.016386][ T254] netlink_unicast+0x449/0x710 [ 9928.016386][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.016386][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.016386][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.016386][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.016386][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.016386][ T254] [ 9928.018589][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.018589][ T254] netdev_get_by_index+0x5e/0x80 [ 9928.018589][ T254] fib6_nh_init+0x3d8/0x1580 [ 9928.018589][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9928.018589][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9928.018589][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9928.018589][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9928.018589][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9928.018589][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9928.018589][ T254] addrconf_dad_begin+0x310/0x670 [ 9928.018589][ T254] addrconf_dad_work+0x10b/0xab0 [ 9928.018589][ T254] process_one_work+0x84d/0x18a0 [ 9928.018589][ T254] worker_thread+0x587/0xd30 [ 9928.018589][ T254] kthread+0x28a/0x350 [ 9928.018589][ T254] ret_from_fork+0x31/0x70 [ 9928.018589][ T254] ret_from_fork_asm+0x1a/0x30 [ 9928.018589][ T254] [ 9928.020737][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.020737][ T254] netdev_get_by_index+0x5e/0x80 [ 9928.020737][ T254] fib6_nh_init+0x3d8/0x1580 [ 9928.020737][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9928.020737][ T254] ip6_route_add+0x1c/0x140 [ 9928.020737][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9928.020737][ T254] inet6_addr_add+0x4f8/0xa40 [ 9928.020737][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9928.020737][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9928.020737][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.020737][ T254] netlink_unicast+0x449/0x710 [ 9928.020737][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.020737][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.020737][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.020737][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.020737][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.020737][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9928.020737][ T254] [ 9928.022981][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.022981][ T254] netdev_get_by_index+0x5e/0x80 [ 9928.022981][ T254] fib6_nh_init+0x3d8/0x1580 [ 9928.022981][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9928.022981][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9928.022981][ T254] ipv6_add_addr+0x411/0x2000 [ 9928.022981][ T254] inet6_addr_add+0x30e/0xa40 [ 9928.022981][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9928.022981][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9928.022981][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.022981][ T254] netlink_unicast+0x449/0x710 [ 9928.022981][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.022981][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.022981][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.022981][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.022981][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.022981][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9928.022981][ T254] [ 9928.025219][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.025219][ T254] netdev_get_by_index+0x5e/0x80 [ 9928.025219][ T254] fib6_nh_init+0x3d8/0x1580 [ 9928.025219][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9928.025219][ T254] ip6_route_add+0x1c/0x140 [ 9928.025219][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9928.025219][ T254] addrconf_add_dev+0xe2/0x170 [ 9928.025219][ T254] inet6_addr_add+0x12f/0xa40 [ 9928.025219][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9928.025219][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9928.025219][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.025219][ T254] netlink_unicast+0x449/0x710 [ 9928.025219][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.025219][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.025219][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.025219][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.025219][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.025219][ T254] [ 9928.027410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.027410][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9928.027410][ T254] ipv6_find_idev+0x102/0x170 [ 9928.027410][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9928.027410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9928.027410][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.027410][ T254] netlink_unicast+0x449/0x710 [ 9928.027410][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.027410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.027410][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.027410][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.027410][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.027410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9928.027410][ T254] [ 9928.029142][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9928.029142][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9928.029142][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9928.029142][ T254] ipv6_find_idev+0x102/0x170 [ 9928.029142][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9928.029142][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9928.029142][ T254] netlink_rcv_skb+0x130/0x360 [ 9928.029142][ T254] netlink_unicast+0x449/0x710 [ 9928.029142][ T254] netlink_sendmsg+0x723/0xbe0 [ 9928.029142][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9928.029142][ T254] ___sys_sendmsg+0xee/0x170 [ 9928.029142][ T254] __sys_sendmsg+0xcd/0x170 [ 9928.029142][ T254] do_syscall_64+0xc6/0x1e0 [ 9928.029142][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9928.029142][ T254] [ 9938.263779][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9938.264301][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.264301][ T254] dst_init+0x84/0x4a0 [ 9938.264301][ T254] dst_alloc+0x97/0x150 [ 9938.264301][ T254] ip6_dst_alloc+0x23/0x90 [ 9938.264301][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9938.264301][ T254] ip6_pol_route+0x56f/0x840 [ 9938.264301][ T254] fib6_rule_lookup+0x334/0x630 [ 9938.264301][ T254] ip6_route_output_flags+0x259/0x480 [ 9938.264301][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9938.264301][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9938.264301][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.264301][ T254] netlink_unicast+0x449/0x710 [ 9938.264301][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.264301][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.264301][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.264301][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.264301][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.264301][ T254] [ 9938.266808][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.266808][ T254] netdev_get_by_index+0x5e/0x80 [ 9938.266808][ T254] fib6_nh_init+0x3d8/0x1580 [ 9938.266808][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9938.266808][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9938.266808][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9938.266808][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9938.266808][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9938.266808][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9938.266808][ T254] addrconf_dad_begin+0x310/0x670 [ 9938.266808][ T254] addrconf_dad_work+0x10b/0xab0 [ 9938.266808][ T254] process_one_work+0x84d/0x18a0 [ 9938.266808][ T254] worker_thread+0x587/0xd30 [ 9938.266808][ T254] kthread+0x28a/0x350 [ 9938.266808][ T254] ret_from_fork+0x31/0x70 [ 9938.266808][ T254] ret_from_fork_asm+0x1a/0x30 [ 9938.266808][ T254] [ 9938.268959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.268959][ T254] netdev_get_by_index+0x5e/0x80 [ 9938.268959][ T254] fib6_nh_init+0x3d8/0x1580 [ 9938.268959][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9938.268959][ T254] ip6_route_add+0x1c/0x140 [ 9938.268959][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9938.268959][ T254] inet6_addr_add+0x4f8/0xa40 [ 9938.268959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9938.268959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9938.268959][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.268959][ T254] netlink_unicast+0x449/0x710 [ 9938.268959][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.268959][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.268959][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.268959][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.268959][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.268959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9938.268959][ T254] [ 9938.271211][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.271211][ T254] netdev_get_by_index+0x5e/0x80 [ 9938.271211][ T254] fib6_nh_init+0x3d8/0x1580 [ 9938.271211][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9938.271211][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9938.271211][ T254] ipv6_add_addr+0x411/0x2000 [ 9938.271211][ T254] inet6_addr_add+0x30e/0xa40 [ 9938.271211][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9938.271211][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9938.271211][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.271211][ T254] netlink_unicast+0x449/0x710 [ 9938.271211][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.271211][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.271211][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.271211][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.271211][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.271211][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9938.271211][ T254] [ 9938.273477][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.273477][ T254] netdev_get_by_index+0x5e/0x80 [ 9938.273477][ T254] fib6_nh_init+0x3d8/0x1580 [ 9938.273477][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9938.273477][ T254] ip6_route_add+0x1c/0x140 [ 9938.273477][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9938.273477][ T254] addrconf_add_dev+0xe2/0x170 [ 9938.273477][ T254] inet6_addr_add+0x12f/0xa40 [ 9938.273477][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9938.273477][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9938.273477][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.273477][ T254] netlink_unicast+0x449/0x710 [ 9938.273477][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.273477][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.273477][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.273477][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.273477][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.273477][ T254] [ 9938.275686][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.275686][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9938.275686][ T254] ipv6_find_idev+0x102/0x170 [ 9938.275686][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9938.275686][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9938.275686][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.275686][ T254] netlink_unicast+0x449/0x710 [ 9938.275686][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.275686][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.275686][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.275686][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.275686][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.275686][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9938.275686][ T254] [ 9938.277417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9938.277417][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9938.277417][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9938.277417][ T254] ipv6_find_idev+0x102/0x170 [ 9938.277417][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9938.277417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9938.277417][ T254] netlink_rcv_skb+0x130/0x360 [ 9938.277417][ T254] netlink_unicast+0x449/0x710 [ 9938.277417][ T254] netlink_sendmsg+0x723/0xbe0 [ 9938.277417][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9938.277417][ T254] ___sys_sendmsg+0xee/0x170 [ 9938.277417][ T254] __sys_sendmsg+0xcd/0x170 [ 9938.277417][ T254] do_syscall_64+0xc6/0x1e0 [ 9938.277417][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9938.277417][ T254] [ 9948.423865][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9948.424397][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.424397][ T254] dst_init+0x84/0x4a0 [ 9948.424397][ T254] dst_alloc+0x97/0x150 [ 9948.424397][ T254] ip6_dst_alloc+0x23/0x90 [ 9948.424397][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9948.424397][ T254] ip6_pol_route+0x56f/0x840 [ 9948.424397][ T254] fib6_rule_lookup+0x334/0x630 [ 9948.424397][ T254] ip6_route_output_flags+0x259/0x480 [ 9948.424397][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9948.424397][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9948.424397][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.424397][ T254] netlink_unicast+0x449/0x710 [ 9948.424397][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.424397][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.424397][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.424397][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.424397][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.424397][ T254] [ 9948.426599][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.426599][ T254] netdev_get_by_index+0x5e/0x80 [ 9948.426599][ T254] fib6_nh_init+0x3d8/0x1580 [ 9948.426599][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9948.426599][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9948.426599][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9948.426599][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9948.426599][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9948.426599][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9948.426599][ T254] addrconf_dad_begin+0x310/0x670 [ 9948.426599][ T254] addrconf_dad_work+0x10b/0xab0 [ 9948.426599][ T254] process_one_work+0x84d/0x18a0 [ 9948.426599][ T254] worker_thread+0x587/0xd30 [ 9948.426599][ T254] kthread+0x28a/0x350 [ 9948.426599][ T254] ret_from_fork+0x31/0x70 [ 9948.426599][ T254] ret_from_fork_asm+0x1a/0x30 [ 9948.426599][ T254] [ 9948.428741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.428741][ T254] netdev_get_by_index+0x5e/0x80 [ 9948.428741][ T254] fib6_nh_init+0x3d8/0x1580 [ 9948.428741][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9948.428741][ T254] ip6_route_add+0x1c/0x140 [ 9948.428741][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9948.428741][ T254] inet6_addr_add+0x4f8/0xa40 [ 9948.428741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9948.428741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9948.428741][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.428741][ T254] netlink_unicast+0x449/0x710 [ 9948.428741][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.428741][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.428741][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.428741][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.428741][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.428741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9948.428741][ T254] [ 9948.430978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.430978][ T254] netdev_get_by_index+0x5e/0x80 [ 9948.430978][ T254] fib6_nh_init+0x3d8/0x1580 [ 9948.430978][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9948.430978][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9948.430978][ T254] ipv6_add_addr+0x411/0x2000 [ 9948.430978][ T254] inet6_addr_add+0x30e/0xa40 [ 9948.430978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9948.430978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9948.430978][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.430978][ T254] netlink_unicast+0x449/0x710 [ 9948.430978][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.430978][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.430978][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.430978][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.430978][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.430978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9948.430978][ T254] [ 9948.433227][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.433227][ T254] netdev_get_by_index+0x5e/0x80 [ 9948.433227][ T254] fib6_nh_init+0x3d8/0x1580 [ 9948.433227][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9948.433227][ T254] ip6_route_add+0x1c/0x140 [ 9948.433227][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9948.433227][ T254] addrconf_add_dev+0xe2/0x170 [ 9948.433227][ T254] inet6_addr_add+0x12f/0xa40 [ 9948.433227][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9948.433227][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9948.433227][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.433227][ T254] netlink_unicast+0x449/0x710 [ 9948.433227][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.433227][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.433227][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.433227][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.433227][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.433227][ T254] [ 9948.435424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.435424][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9948.435424][ T254] ipv6_find_idev+0x102/0x170 [ 9948.435424][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9948.435424][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9948.435424][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.435424][ T254] netlink_unicast+0x449/0x710 [ 9948.435424][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.435424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.435424][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.435424][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.435424][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.435424][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9948.435424][ T254] [ 9948.437145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9948.437145][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9948.437145][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9948.437145][ T254] ipv6_find_idev+0x102/0x170 [ 9948.437145][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9948.437145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9948.437145][ T254] netlink_rcv_skb+0x130/0x360 [ 9948.437145][ T254] netlink_unicast+0x449/0x710 [ 9948.437145][ T254] netlink_sendmsg+0x723/0xbe0 [ 9948.437145][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9948.437145][ T254] ___sys_sendmsg+0xee/0x170 [ 9948.437145][ T254] __sys_sendmsg+0xcd/0x170 [ 9948.437145][ T254] do_syscall_64+0xc6/0x1e0 [ 9948.437145][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9948.437145][ T254] [ 9958.655851][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9958.656405][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.656405][ T254] dst_init+0x84/0x4a0 [ 9958.656405][ T254] dst_alloc+0x97/0x150 [ 9958.656405][ T254] ip6_dst_alloc+0x23/0x90 [ 9958.656405][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9958.656405][ T254] ip6_pol_route+0x56f/0x840 [ 9958.656405][ T254] fib6_rule_lookup+0x334/0x630 [ 9958.656405][ T254] ip6_route_output_flags+0x259/0x480 [ 9958.656405][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9958.656405][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9958.656405][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.656405][ T254] netlink_unicast+0x449/0x710 [ 9958.656405][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.656405][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.656405][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.656405][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.656405][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.656405][ T254] [ 9958.658612][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.658612][ T254] netdev_get_by_index+0x5e/0x80 [ 9958.658612][ T254] fib6_nh_init+0x3d8/0x1580 [ 9958.658612][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9958.658612][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9958.658612][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9958.658612][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9958.658612][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9958.658612][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9958.658612][ T254] addrconf_dad_begin+0x310/0x670 [ 9958.658612][ T254] addrconf_dad_work+0x10b/0xab0 [ 9958.658612][ T254] process_one_work+0x84d/0x18a0 [ 9958.658612][ T254] worker_thread+0x587/0xd30 [ 9958.658612][ T254] kthread+0x28a/0x350 [ 9958.658612][ T254] ret_from_fork+0x31/0x70 [ 9958.658612][ T254] ret_from_fork_asm+0x1a/0x30 [ 9958.658612][ T254] [ 9958.660751][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.660751][ T254] netdev_get_by_index+0x5e/0x80 [ 9958.660751][ T254] fib6_nh_init+0x3d8/0x1580 [ 9958.660751][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9958.660751][ T254] ip6_route_add+0x1c/0x140 [ 9958.660751][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9958.660751][ T254] inet6_addr_add+0x4f8/0xa40 [ 9958.660751][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9958.660751][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9958.660751][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.660751][ T254] netlink_unicast+0x449/0x710 [ 9958.660751][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.660751][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.660751][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.660751][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.660751][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.660751][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9958.660751][ T254] [ 9958.663001][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.663001][ T254] netdev_get_by_index+0x5e/0x80 [ 9958.663001][ T254] fib6_nh_init+0x3d8/0x1580 [ 9958.663001][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9958.663001][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9958.663001][ T254] ipv6_add_addr+0x411/0x2000 [ 9958.663001][ T254] inet6_addr_add+0x30e/0xa40 [ 9958.663001][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9958.663001][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9958.663001][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.663001][ T254] netlink_unicast+0x449/0x710 [ 9958.663001][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.663001][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.663001][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.663001][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.663001][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.663001][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9958.663001][ T254] [ 9958.665236][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.665236][ T254] netdev_get_by_index+0x5e/0x80 [ 9958.665236][ T254] fib6_nh_init+0x3d8/0x1580 [ 9958.665236][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9958.665236][ T254] ip6_route_add+0x1c/0x140 [ 9958.665236][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9958.665236][ T254] addrconf_add_dev+0xe2/0x170 [ 9958.665236][ T254] inet6_addr_add+0x12f/0xa40 [ 9958.665236][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9958.665236][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9958.665236][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.665236][ T254] netlink_unicast+0x449/0x710 [ 9958.665236][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.665236][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.665236][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.665236][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.665236][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.665236][ T254] [ 9958.667424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.667424][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9958.667424][ T254] ipv6_find_idev+0x102/0x170 [ 9958.667424][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9958.667424][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9958.667424][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.667424][ T254] netlink_unicast+0x449/0x710 [ 9958.667424][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.667424][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.667424][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.667424][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.667424][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.667424][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9958.667424][ T254] [ 9958.669154][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9958.669154][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9958.669154][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9958.669154][ T254] ipv6_find_idev+0x102/0x170 [ 9958.669154][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9958.669154][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9958.669154][ T254] netlink_rcv_skb+0x130/0x360 [ 9958.669154][ T254] netlink_unicast+0x449/0x710 [ 9958.669154][ T254] netlink_sendmsg+0x723/0xbe0 [ 9958.669154][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9958.669154][ T254] ___sys_sendmsg+0xee/0x170 [ 9958.669154][ T254] __sys_sendmsg+0xcd/0x170 [ 9958.669154][ T254] do_syscall_64+0xc6/0x1e0 [ 9958.669154][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9958.669154][ T254] [ 9968.911843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9968.912373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.912373][ T254] dst_init+0x84/0x4a0 [ 9968.912373][ T254] dst_alloc+0x97/0x150 [ 9968.912373][ T254] ip6_dst_alloc+0x23/0x90 [ 9968.912373][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9968.912373][ T254] ip6_pol_route+0x56f/0x840 [ 9968.912373][ T254] fib6_rule_lookup+0x334/0x630 [ 9968.912373][ T254] ip6_route_output_flags+0x259/0x480 [ 9968.912373][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9968.912373][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9968.912373][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.912373][ T254] netlink_unicast+0x449/0x710 [ 9968.912373][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.912373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.912373][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.912373][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.912373][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.912373][ T254] [ 9968.914579][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.914579][ T254] netdev_get_by_index+0x5e/0x80 [ 9968.914579][ T254] fib6_nh_init+0x3d8/0x1580 [ 9968.914579][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9968.914579][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9968.914579][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9968.914579][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9968.914579][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9968.914579][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9968.914579][ T254] addrconf_dad_begin+0x310/0x670 [ 9968.914579][ T254] addrconf_dad_work+0x10b/0xab0 [ 9968.914579][ T254] process_one_work+0x84d/0x18a0 [ 9968.914579][ T254] worker_thread+0x587/0xd30 [ 9968.914579][ T254] kthread+0x28a/0x350 [ 9968.914579][ T254] ret_from_fork+0x31/0x70 [ 9968.914579][ T254] ret_from_fork_asm+0x1a/0x30 [ 9968.914579][ T254] [ 9968.916728][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.916728][ T254] netdev_get_by_index+0x5e/0x80 [ 9968.916728][ T254] fib6_nh_init+0x3d8/0x1580 [ 9968.916728][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9968.916728][ T254] ip6_route_add+0x1c/0x140 [ 9968.916728][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9968.916728][ T254] inet6_addr_add+0x4f8/0xa40 [ 9968.916728][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9968.916728][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9968.916728][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.916728][ T254] netlink_unicast+0x449/0x710 [ 9968.916728][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.916728][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.916728][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.916728][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.916728][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.916728][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9968.916728][ T254] [ 9968.918968][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.918968][ T254] netdev_get_by_index+0x5e/0x80 [ 9968.918968][ T254] fib6_nh_init+0x3d8/0x1580 [ 9968.918968][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9968.918968][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9968.918968][ T254] ipv6_add_addr+0x411/0x2000 [ 9968.918968][ T254] inet6_addr_add+0x30e/0xa40 [ 9968.918968][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9968.918968][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9968.918968][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.918968][ T254] netlink_unicast+0x449/0x710 [ 9968.918968][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.918968][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.918968][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.918968][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.918968][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.918968][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9968.918968][ T254] [ 9968.921205][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.921205][ T254] netdev_get_by_index+0x5e/0x80 [ 9968.921205][ T254] fib6_nh_init+0x3d8/0x1580 [ 9968.921205][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9968.921205][ T254] ip6_route_add+0x1c/0x140 [ 9968.921205][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9968.921205][ T254] addrconf_add_dev+0xe2/0x170 [ 9968.921205][ T254] inet6_addr_add+0x12f/0xa40 [ 9968.921205][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9968.921205][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9968.921205][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.921205][ T254] netlink_unicast+0x449/0x710 [ 9968.921205][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.921205][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.921205][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.921205][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.921205][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.921205][ T254] [ 9968.923410][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.923410][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9968.923410][ T254] ipv6_find_idev+0x102/0x170 [ 9968.923410][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9968.923410][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9968.923410][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.923410][ T254] netlink_unicast+0x449/0x710 [ 9968.923410][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.923410][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.923410][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.923410][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.923410][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.923410][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9968.923410][ T254] [ 9968.925132][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9968.925132][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9968.925132][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9968.925132][ T254] ipv6_find_idev+0x102/0x170 [ 9968.925132][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9968.925132][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9968.925132][ T254] netlink_rcv_skb+0x130/0x360 [ 9968.925132][ T254] netlink_unicast+0x449/0x710 [ 9968.925132][ T254] netlink_sendmsg+0x723/0xbe0 [ 9968.925132][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9968.925132][ T254] ___sys_sendmsg+0xee/0x170 [ 9968.925132][ T254] __sys_sendmsg+0xcd/0x170 [ 9968.925132][ T254] do_syscall_64+0xc6/0x1e0 [ 9968.925132][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9968.925132][ T254] [ 9979.167846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9979.168357][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.168357][ T254] dst_init+0x84/0x4a0 [ 9979.168357][ T254] dst_alloc+0x97/0x150 [ 9979.168357][ T254] ip6_dst_alloc+0x23/0x90 [ 9979.168357][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9979.168357][ T254] ip6_pol_route+0x56f/0x840 [ 9979.168357][ T254] fib6_rule_lookup+0x334/0x630 [ 9979.168357][ T254] ip6_route_output_flags+0x259/0x480 [ 9979.168357][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9979.168357][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9979.168357][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.168357][ T254] netlink_unicast+0x449/0x710 [ 9979.168357][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.168357][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.168357][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.168357][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.168357][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.168357][ T254] [ 9979.170568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.170568][ T254] netdev_get_by_index+0x5e/0x80 [ 9979.170568][ T254] fib6_nh_init+0x3d8/0x1580 [ 9979.170568][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9979.170568][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9979.170568][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9979.170568][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9979.170568][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9979.170568][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9979.170568][ T254] addrconf_dad_begin+0x310/0x670 [ 9979.170568][ T254] addrconf_dad_work+0x10b/0xab0 [ 9979.170568][ T254] process_one_work+0x84d/0x18a0 [ 9979.170568][ T254] worker_thread+0x587/0xd30 [ 9979.170568][ T254] kthread+0x28a/0x350 [ 9979.170568][ T254] ret_from_fork+0x31/0x70 [ 9979.170568][ T254] ret_from_fork_asm+0x1a/0x30 [ 9979.170568][ T254] [ 9979.172722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.172722][ T254] netdev_get_by_index+0x5e/0x80 [ 9979.172722][ T254] fib6_nh_init+0x3d8/0x1580 [ 9979.172722][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9979.172722][ T254] ip6_route_add+0x1c/0x140 [ 9979.172722][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9979.172722][ T254] inet6_addr_add+0x4f8/0xa40 [ 9979.172722][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9979.172722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9979.172722][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.172722][ T254] netlink_unicast+0x449/0x710 [ 9979.172722][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.172722][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.172722][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.172722][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.172722][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.172722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9979.172722][ T254] [ 9979.174962][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.174962][ T254] netdev_get_by_index+0x5e/0x80 [ 9979.174962][ T254] fib6_nh_init+0x3d8/0x1580 [ 9979.174962][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9979.174962][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9979.174962][ T254] ipv6_add_addr+0x411/0x2000 [ 9979.174962][ T254] inet6_addr_add+0x30e/0xa40 [ 9979.174962][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9979.174962][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9979.174962][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.174962][ T254] netlink_unicast+0x449/0x710 [ 9979.174962][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.174962][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.174962][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.174962][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.174962][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.174962][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9979.174962][ T254] [ 9979.177213][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.177213][ T254] netdev_get_by_index+0x5e/0x80 [ 9979.177213][ T254] fib6_nh_init+0x3d8/0x1580 [ 9979.177213][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9979.177213][ T254] ip6_route_add+0x1c/0x140 [ 9979.177213][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9979.177213][ T254] addrconf_add_dev+0xe2/0x170 [ 9979.177213][ T254] inet6_addr_add+0x12f/0xa40 [ 9979.177213][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9979.177213][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9979.177213][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.177213][ T254] netlink_unicast+0x449/0x710 [ 9979.177213][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.177213][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.177213][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.177213][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.177213][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.177213][ T254] [ 9979.179412][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.179412][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9979.179412][ T254] ipv6_find_idev+0x102/0x170 [ 9979.179412][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9979.179412][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9979.179412][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.179412][ T254] netlink_unicast+0x449/0x710 [ 9979.179412][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.179412][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.179412][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.179412][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.179412][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.179412][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9979.179412][ T254] [ 9979.181131][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9979.181131][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9979.181131][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9979.181131][ T254] ipv6_find_idev+0x102/0x170 [ 9979.181131][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9979.181131][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9979.181131][ T254] netlink_rcv_skb+0x130/0x360 [ 9979.181131][ T254] netlink_unicast+0x449/0x710 [ 9979.181131][ T254] netlink_sendmsg+0x723/0xbe0 [ 9979.181131][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9979.181131][ T254] ___sys_sendmsg+0xee/0x170 [ 9979.181131][ T254] __sys_sendmsg+0xcd/0x170 [ 9979.181131][ T254] do_syscall_64+0xc6/0x1e0 [ 9979.181131][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9979.181131][ T254] [ 9989.383846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9989.384393][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.384393][ T254] dst_init+0x84/0x4a0 [ 9989.384393][ T254] dst_alloc+0x97/0x150 [ 9989.384393][ T254] ip6_dst_alloc+0x23/0x90 [ 9989.384393][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9989.384393][ T254] ip6_pol_route+0x56f/0x840 [ 9989.384393][ T254] fib6_rule_lookup+0x334/0x630 [ 9989.384393][ T254] ip6_route_output_flags+0x259/0x480 [ 9989.384393][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9989.384393][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9989.384393][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.384393][ T254] netlink_unicast+0x449/0x710 [ 9989.384393][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.384393][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.384393][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.384393][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.384393][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.384393][ T254] [ 9989.386641][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.386641][ T254] netdev_get_by_index+0x5e/0x80 [ 9989.386641][ T254] fib6_nh_init+0x3d8/0x1580 [ 9989.386641][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9989.386641][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9989.386641][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9989.386641][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9989.386641][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9989.386641][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9989.386641][ T254] addrconf_dad_begin+0x310/0x670 [ 9989.386641][ T254] addrconf_dad_work+0x10b/0xab0 [ 9989.386641][ T254] process_one_work+0x84d/0x18a0 [ 9989.386641][ T254] worker_thread+0x587/0xd30 [ 9989.386641][ T254] kthread+0x28a/0x350 [ 9989.386641][ T254] ret_from_fork+0x31/0x70 [ 9989.386641][ T254] ret_from_fork_asm+0x1a/0x30 [ 9989.386641][ T254] [ 9989.388815][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.388815][ T254] netdev_get_by_index+0x5e/0x80 [ 9989.388815][ T254] fib6_nh_init+0x3d8/0x1580 [ 9989.388815][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9989.388815][ T254] ip6_route_add+0x1c/0x140 [ 9989.388815][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9989.388815][ T254] inet6_addr_add+0x4f8/0xa40 [ 9989.388815][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9989.388815][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9989.388815][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.388815][ T254] netlink_unicast+0x449/0x710 [ 9989.388815][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.388815][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.388815][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.388815][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.388815][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.388815][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9989.388815][ T254] [ 9989.391079][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.391079][ T254] netdev_get_by_index+0x5e/0x80 [ 9989.391079][ T254] fib6_nh_init+0x3d8/0x1580 [ 9989.391079][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9989.391079][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9989.391079][ T254] ipv6_add_addr+0x411/0x2000 [ 9989.391079][ T254] inet6_addr_add+0x30e/0xa40 [ 9989.391079][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9989.391079][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9989.391079][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.391079][ T254] netlink_unicast+0x449/0x710 [ 9989.391079][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.391079][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.391079][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.391079][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.391079][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.391079][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9989.391079][ T254] [ 9989.393373][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.393373][ T254] netdev_get_by_index+0x5e/0x80 [ 9989.393373][ T254] fib6_nh_init+0x3d8/0x1580 [ 9989.393373][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9989.393373][ T254] ip6_route_add+0x1c/0x140 [ 9989.393373][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9989.393373][ T254] addrconf_add_dev+0xe2/0x170 [ 9989.393373][ T254] inet6_addr_add+0x12f/0xa40 [ 9989.393373][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9989.393373][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9989.393373][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.393373][ T254] netlink_unicast+0x449/0x710 [ 9989.393373][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.393373][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.393373][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.393373][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.393373][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.393373][ T254] [ 9989.395605][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.395605][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9989.395605][ T254] ipv6_find_idev+0x102/0x170 [ 9989.395605][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9989.395605][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9989.395605][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.395605][ T254] netlink_unicast+0x449/0x710 [ 9989.395605][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.395605][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.395605][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.395605][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.395605][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.395605][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9989.395605][ T254] [ 9989.397348][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9989.397348][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9989.397348][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9989.397348][ T254] ipv6_find_idev+0x102/0x170 [ 9989.397348][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9989.397348][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9989.397348][ T254] netlink_rcv_skb+0x130/0x360 [ 9989.397348][ T254] netlink_unicast+0x449/0x710 [ 9989.397348][ T254] netlink_sendmsg+0x723/0xbe0 [ 9989.397348][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9989.397348][ T254] ___sys_sendmsg+0xee/0x170 [ 9989.397348][ T254] __sys_sendmsg+0xcd/0x170 [ 9989.397348][ T254] do_syscall_64+0xc6/0x1e0 [ 9989.397348][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9989.397348][ T254] [ 9999.543843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [ 9999.544345][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.544345][ T254] dst_init+0x84/0x4a0 [ 9999.544345][ T254] dst_alloc+0x97/0x150 [ 9999.544345][ T254] ip6_dst_alloc+0x23/0x90 [ 9999.544345][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [ 9999.544345][ T254] ip6_pol_route+0x56f/0x840 [ 9999.544345][ T254] fib6_rule_lookup+0x334/0x630 [ 9999.544345][ T254] ip6_route_output_flags+0x259/0x480 [ 9999.544345][ T254] inet6_rtm_getroute+0x980/0xf70 [ 9999.544345][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [ 9999.544345][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.544345][ T254] netlink_unicast+0x449/0x710 [ 9999.544345][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.544345][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.544345][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.544345][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.544345][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.544345][ T254] [ 9999.546613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.546613][ T254] netdev_get_by_index+0x5e/0x80 [ 9999.546613][ T254] fib6_nh_init+0x3d8/0x1580 [ 9999.546613][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9999.546613][ T254] addrconf_f6i_alloc+0x265/0x560 [ 9999.546613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [ 9999.546613][ T254] addrconf_join_anycast+0x1c0/0x220 [ 9999.546613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [ 9999.546613][ T254] addrconf_dad_completed+0x12b/0xe20 [ 9999.546613][ T254] addrconf_dad_begin+0x310/0x670 [ 9999.546613][ T254] addrconf_dad_work+0x10b/0xab0 [ 9999.546613][ T254] process_one_work+0x84d/0x18a0 [ 9999.546613][ T254] worker_thread+0x587/0xd30 [ 9999.546613][ T254] kthread+0x28a/0x350 [ 9999.546613][ T254] ret_from_fork+0x31/0x70 [ 9999.546613][ T254] ret_from_fork_asm+0x1a/0x30 [ 9999.546613][ T254] [ 9999.548825][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.548825][ T254] netdev_get_by_index+0x5e/0x80 [ 9999.548825][ T254] fib6_nh_init+0x3d8/0x1580 [ 9999.548825][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9999.548825][ T254] ip6_route_add+0x1c/0x140 [ 9999.548825][ T254] addrconf_prefix_route+0x2a6/0x430 [ 9999.548825][ T254] inet6_addr_add+0x4f8/0xa40 [ 9999.548825][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9999.548825][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9999.548825][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.548825][ T254] netlink_unicast+0x449/0x710 [ 9999.548825][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.548825][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.548825][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.548825][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.548825][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.548825][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9999.548825][ T254] [ 9999.551140][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.551140][ T254] netdev_get_by_index+0x5e/0x80 [ 9999.551140][ T254] fib6_nh_init+0x3d8/0x1580 [ 9999.551140][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9999.551140][ T254] addrconf_f6i_alloc+0x315/0x560 [ 9999.551140][ T254] ipv6_add_addr+0x411/0x2000 [ 9999.551140][ T254] inet6_addr_add+0x30e/0xa40 [ 9999.551140][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9999.551140][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9999.551140][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.551140][ T254] netlink_unicast+0x449/0x710 [ 9999.551140][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.551140][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.551140][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.551140][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.551140][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.551140][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9999.551140][ T254] [ 9999.553465][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.553465][ T254] netdev_get_by_index+0x5e/0x80 [ 9999.553465][ T254] fib6_nh_init+0x3d8/0x1580 [ 9999.553465][ T254] ip6_route_info_create+0xf18/0x17d0 [ 9999.553465][ T254] ip6_route_add+0x1c/0x140 [ 9999.553465][ T254] addrconf_add_mroute+0x1ac/0x2c0 [ 9999.553465][ T254] addrconf_add_dev+0xe2/0x170 [ 9999.553465][ T254] inet6_addr_add+0x12f/0xa40 [ 9999.553465][ T254] inet6_rtm_newaddr+0x560/0x6b0 [ 9999.553465][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9999.553465][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.553465][ T254] netlink_unicast+0x449/0x710 [ 9999.553465][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.553465][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.553465][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.553465][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.553465][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.553465][ T254] [ 9999.555729][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.555729][ T254] ipv6_add_dev+0x3ba/0x11c0 [ 9999.555729][ T254] ipv6_find_idev+0x102/0x170 [ 9999.555729][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9999.555729][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9999.555729][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.555729][ T254] netlink_unicast+0x449/0x710 [ 9999.555729][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.555729][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.555729][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.555729][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.555729][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.555729][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9999.555729][ T254] [ 9999.557505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [ 9999.557505][ T254] neigh_parms_alloc+0x1e5/0x510 [ 9999.557505][ T254] ipv6_add_dev+0x2fe/0x11c0 [ 9999.557505][ T254] ipv6_find_idev+0x102/0x170 [ 9999.557505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [ 9999.557505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 9999.557505][ T254] netlink_rcv_skb+0x130/0x360 [ 9999.557505][ T254] netlink_unicast+0x449/0x710 [ 9999.557505][ T254] netlink_sendmsg+0x723/0xbe0 [ 9999.557505][ T254] ____sys_sendmsg+0x7b2/0xa10 [ 9999.557505][ T254] ___sys_sendmsg+0xee/0x170 [ 9999.557505][ T254] __sys_sendmsg+0xcd/0x170 [ 9999.557505][ T254] do_syscall_64+0xc6/0x1e0 [ 9999.557505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 9999.557505][ T254] [10009.751785][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10009.752339][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.752339][ T254] dst_init+0x84/0x4a0 [10009.752339][ T254] dst_alloc+0x97/0x150 [10009.752339][ T254] ip6_dst_alloc+0x23/0x90 [10009.752339][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10009.752339][ T254] ip6_pol_route+0x56f/0x840 [10009.752339][ T254] fib6_rule_lookup+0x334/0x630 [10009.752339][ T254] ip6_route_output_flags+0x259/0x480 [10009.752339][ T254] inet6_rtm_getroute+0x980/0xf70 [10009.752339][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10009.752339][ T254] netlink_rcv_skb+0x130/0x360 [10009.752339][ T254] netlink_unicast+0x449/0x710 [10009.752339][ T254] netlink_sendmsg+0x723/0xbe0 [10009.752339][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.752339][ T254] ___sys_sendmsg+0xee/0x170 [10009.752339][ T254] __sys_sendmsg+0xcd/0x170 [10009.752339][ T254] do_syscall_64+0xc6/0x1e0 [10009.752339][ T254] [10009.754622][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.754622][ T254] netdev_get_by_index+0x5e/0x80 [10009.754622][ T254] fib6_nh_init+0x3d8/0x1580 [10009.754622][ T254] ip6_route_info_create+0xf18/0x17d0 [10009.754622][ T254] addrconf_f6i_alloc+0x265/0x560 [10009.754622][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10009.754622][ T254] addrconf_join_anycast+0x1c0/0x220 [10009.754622][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10009.754622][ T254] addrconf_dad_completed+0x12b/0xe20 [10009.754622][ T254] addrconf_dad_begin+0x310/0x670 [10009.754622][ T254] addrconf_dad_work+0x10b/0xab0 [10009.754622][ T254] process_one_work+0x84d/0x18a0 [10009.754622][ T254] worker_thread+0x587/0xd30 [10009.754622][ T254] kthread+0x28a/0x350 [10009.754622][ T254] ret_from_fork+0x31/0x70 [10009.754622][ T254] ret_from_fork_asm+0x1a/0x30 [10009.754622][ T254] [10009.756852][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.756852][ T254] netdev_get_by_index+0x5e/0x80 [10009.756852][ T254] fib6_nh_init+0x3d8/0x1580 [10009.756852][ T254] ip6_route_info_create+0xf18/0x17d0 [10009.756852][ T254] ip6_route_add+0x1c/0x140 [10009.756852][ T254] addrconf_prefix_route+0x2a6/0x430 [10009.756852][ T254] inet6_addr_add+0x4f8/0xa40 [10009.756852][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10009.756852][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10009.756852][ T254] netlink_rcv_skb+0x130/0x360 [10009.756852][ T254] netlink_unicast+0x449/0x710 [10009.756852][ T254] netlink_sendmsg+0x723/0xbe0 [10009.756852][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.756852][ T254] ___sys_sendmsg+0xee/0x170 [10009.756852][ T254] __sys_sendmsg+0xcd/0x170 [10009.756852][ T254] do_syscall_64+0xc6/0x1e0 [10009.756852][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10009.756852][ T254] [10009.759181][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.759181][ T254] netdev_get_by_index+0x5e/0x80 [10009.759181][ T254] fib6_nh_init+0x3d8/0x1580 [10009.759181][ T254] ip6_route_info_create+0xf18/0x17d0 [10009.759181][ T254] addrconf_f6i_alloc+0x315/0x560 [10009.759181][ T254] ipv6_add_addr+0x411/0x2000 [10009.759181][ T254] inet6_addr_add+0x30e/0xa40 [10009.759181][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10009.759181][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10009.759181][ T254] netlink_rcv_skb+0x130/0x360 [10009.759181][ T254] netlink_unicast+0x449/0x710 [10009.759181][ T254] netlink_sendmsg+0x723/0xbe0 [10009.759181][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.759181][ T254] ___sys_sendmsg+0xee/0x170 [10009.759181][ T254] __sys_sendmsg+0xcd/0x170 [10009.759181][ T254] do_syscall_64+0xc6/0x1e0 [10009.759181][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10009.759181][ T254] [10009.761500][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.761500][ T254] netdev_get_by_index+0x5e/0x80 [10009.761500][ T254] fib6_nh_init+0x3d8/0x1580 [10009.761500][ T254] ip6_route_info_create+0xf18/0x17d0 [10009.761500][ T254] ip6_route_add+0x1c/0x140 [10009.761500][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10009.761500][ T254] addrconf_add_dev+0xe2/0x170 [10009.761500][ T254] inet6_addr_add+0x12f/0xa40 [10009.761500][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10009.761500][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10009.761500][ T254] netlink_rcv_skb+0x130/0x360 [10009.761500][ T254] netlink_unicast+0x449/0x710 [10009.761500][ T254] netlink_sendmsg+0x723/0xbe0 [10009.761500][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.761500][ T254] ___sys_sendmsg+0xee/0x170 [10009.761500][ T254] __sys_sendmsg+0xcd/0x170 [10009.761500][ T254] do_syscall_64+0xc6/0x1e0 [10009.761500][ T254] [10009.763769][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.763769][ T254] ipv6_add_dev+0x3ba/0x11c0 [10009.763769][ T254] ipv6_find_idev+0x102/0x170 [10009.763769][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10009.763769][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10009.763769][ T254] netlink_rcv_skb+0x130/0x360 [10009.763769][ T254] netlink_unicast+0x449/0x710 [10009.763769][ T254] netlink_sendmsg+0x723/0xbe0 [10009.763769][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.763769][ T254] ___sys_sendmsg+0xee/0x170 [10009.763769][ T254] __sys_sendmsg+0xcd/0x170 [10009.763769][ T254] do_syscall_64+0xc6/0x1e0 [10009.763769][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10009.763769][ T254] [10009.765548][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10009.765548][ T254] neigh_parms_alloc+0x1e5/0x510 [10009.765548][ T254] ipv6_add_dev+0x2fe/0x11c0 [10009.765548][ T254] ipv6_find_idev+0x102/0x170 [10009.765548][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10009.765548][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10009.765548][ T254] netlink_rcv_skb+0x130/0x360 [10009.765548][ T254] netlink_unicast+0x449/0x710 [10009.765548][ T254] netlink_sendmsg+0x723/0xbe0 [10009.765548][ T254] ____sys_sendmsg+0x7b2/0xa10 [10009.765548][ T254] ___sys_sendmsg+0xee/0x170 [10009.765548][ T254] __sys_sendmsg+0xcd/0x170 [10009.765548][ T254] do_syscall_64+0xc6/0x1e0 [10009.765548][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10009.765548][ T254] [10019.999843][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10020.000336][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.000336][ T254] dst_init+0x84/0x4a0 [10020.000336][ T254] dst_alloc+0x97/0x150 [10020.000336][ T254] ip6_dst_alloc+0x23/0x90 [10020.000336][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10020.000336][ T254] ip6_pol_route+0x56f/0x840 [10020.000336][ T254] fib6_rule_lookup+0x334/0x630 [10020.000336][ T254] ip6_route_output_flags+0x259/0x480 [10020.000336][ T254] inet6_rtm_getroute+0x980/0xf70 [10020.000336][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10020.000336][ T254] netlink_rcv_skb+0x130/0x360 [10020.000336][ T254] netlink_unicast+0x449/0x710 [10020.000336][ T254] netlink_sendmsg+0x723/0xbe0 [10020.000336][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.000336][ T254] ___sys_sendmsg+0xee/0x170 [10020.000336][ T254] __sys_sendmsg+0xcd/0x170 [10020.000336][ T254] do_syscall_64+0xc6/0x1e0 [10020.000336][ T254] [10020.002709][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.002709][ T254] netdev_get_by_index+0x5e/0x80 [10020.002709][ T254] fib6_nh_init+0x3d8/0x1580 [10020.002709][ T254] ip6_route_info_create+0xf18/0x17d0 [10020.002709][ T254] addrconf_f6i_alloc+0x265/0x560 [10020.002709][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10020.002709][ T254] addrconf_join_anycast+0x1c0/0x220 [10020.002709][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10020.002709][ T254] addrconf_dad_completed+0x12b/0xe20 [10020.002709][ T254] addrconf_dad_begin+0x310/0x670 [10020.002709][ T254] addrconf_dad_work+0x10b/0xab0 [10020.002709][ T254] process_one_work+0x84d/0x18a0 [10020.002709][ T254] worker_thread+0x587/0xd30 [10020.002709][ T254] kthread+0x28a/0x350 [10020.002709][ T254] ret_from_fork+0x31/0x70 [10020.002709][ T254] ret_from_fork_asm+0x1a/0x30 [10020.002709][ T254] [10020.004888][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.004888][ T254] netdev_get_by_index+0x5e/0x80 [10020.004888][ T254] fib6_nh_init+0x3d8/0x1580 [10020.004888][ T254] ip6_route_info_create+0xf18/0x17d0 [10020.004888][ T254] ip6_route_add+0x1c/0x140 [10020.004888][ T254] addrconf_prefix_route+0x2a6/0x430 [10020.004888][ T254] inet6_addr_add+0x4f8/0xa40 [10020.004888][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10020.004888][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10020.004888][ T254] netlink_rcv_skb+0x130/0x360 [10020.004888][ T254] netlink_unicast+0x449/0x710 [10020.004888][ T254] netlink_sendmsg+0x723/0xbe0 [10020.004888][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.004888][ T254] ___sys_sendmsg+0xee/0x170 [10020.004888][ T254] __sys_sendmsg+0xcd/0x170 [10020.004888][ T254] do_syscall_64+0xc6/0x1e0 [10020.004888][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10020.004888][ T254] [10020.007152][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.007152][ T254] netdev_get_by_index+0x5e/0x80 [10020.007152][ T254] fib6_nh_init+0x3d8/0x1580 [10020.007152][ T254] ip6_route_info_create+0xf18/0x17d0 [10020.007152][ T254] addrconf_f6i_alloc+0x315/0x560 [10020.007152][ T254] ipv6_add_addr+0x411/0x2000 [10020.007152][ T254] inet6_addr_add+0x30e/0xa40 [10020.007152][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10020.007152][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10020.007152][ T254] netlink_rcv_skb+0x130/0x360 [10020.007152][ T254] netlink_unicast+0x449/0x710 [10020.007152][ T254] netlink_sendmsg+0x723/0xbe0 [10020.007152][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.007152][ T254] ___sys_sendmsg+0xee/0x170 [10020.007152][ T254] __sys_sendmsg+0xcd/0x170 [10020.007152][ T254] do_syscall_64+0xc6/0x1e0 [10020.007152][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10020.007152][ T254] [10020.009417][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.009417][ T254] netdev_get_by_index+0x5e/0x80 [10020.009417][ T254] fib6_nh_init+0x3d8/0x1580 [10020.009417][ T254] ip6_route_info_create+0xf18/0x17d0 [10020.009417][ T254] ip6_route_add+0x1c/0x140 [10020.009417][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10020.009417][ T254] addrconf_add_dev+0xe2/0x170 [10020.009417][ T254] inet6_addr_add+0x12f/0xa40 [10020.009417][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10020.009417][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10020.009417][ T254] netlink_rcv_skb+0x130/0x360 [10020.009417][ T254] netlink_unicast+0x449/0x710 [10020.009417][ T254] netlink_sendmsg+0x723/0xbe0 [10020.009417][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.009417][ T254] ___sys_sendmsg+0xee/0x170 [10020.009417][ T254] __sys_sendmsg+0xcd/0x170 [10020.009417][ T254] do_syscall_64+0xc6/0x1e0 [10020.009417][ T254] [10020.011646][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.011646][ T254] ipv6_add_dev+0x3ba/0x11c0 [10020.011646][ T254] ipv6_find_idev+0x102/0x170 [10020.011646][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10020.011646][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10020.011646][ T254] netlink_rcv_skb+0x130/0x360 [10020.011646][ T254] netlink_unicast+0x449/0x710 [10020.011646][ T254] netlink_sendmsg+0x723/0xbe0 [10020.011646][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.011646][ T254] ___sys_sendmsg+0xee/0x170 [10020.011646][ T254] __sys_sendmsg+0xcd/0x170 [10020.011646][ T254] do_syscall_64+0xc6/0x1e0 [10020.011646][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10020.011646][ T254] [10020.013394][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10020.013394][ T254] neigh_parms_alloc+0x1e5/0x510 [10020.013394][ T254] ipv6_add_dev+0x2fe/0x11c0 [10020.013394][ T254] ipv6_find_idev+0x102/0x170 [10020.013394][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10020.013394][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10020.013394][ T254] netlink_rcv_skb+0x130/0x360 [10020.013394][ T254] netlink_unicast+0x449/0x710 [10020.013394][ T254] netlink_sendmsg+0x723/0xbe0 [10020.013394][ T254] ____sys_sendmsg+0x7b2/0xa10 [10020.013394][ T254] ___sys_sendmsg+0xee/0x170 [10020.013394][ T254] __sys_sendmsg+0xcd/0x170 [10020.013394][ T254] do_syscall_64+0xc6/0x1e0 [10020.013394][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10020.013394][ T254] [10030.263857][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10030.264418][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.264418][ T254] dst_init+0x84/0x4a0 [10030.264418][ T254] dst_alloc+0x97/0x150 [10030.264418][ T254] ip6_dst_alloc+0x23/0x90 [10030.264418][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10030.264418][ T254] ip6_pol_route+0x56f/0x840 [10030.264418][ T254] fib6_rule_lookup+0x334/0x630 [10030.264418][ T254] ip6_route_output_flags+0x259/0x480 [10030.264418][ T254] inet6_rtm_getroute+0x980/0xf70 [10030.264418][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10030.264418][ T254] netlink_rcv_skb+0x130/0x360 [10030.264418][ T254] netlink_unicast+0x449/0x710 [10030.264418][ T254] netlink_sendmsg+0x723/0xbe0 [10030.264418][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.264418][ T254] ___sys_sendmsg+0xee/0x170 [10030.264418][ T254] __sys_sendmsg+0xcd/0x170 [10030.264418][ T254] do_syscall_64+0xc6/0x1e0 [10030.264418][ T254] [10030.266672][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.266672][ T254] netdev_get_by_index+0x5e/0x80 [10030.266672][ T254] fib6_nh_init+0x3d8/0x1580 [10030.266672][ T254] ip6_route_info_create+0xf18/0x17d0 [10030.266672][ T254] addrconf_f6i_alloc+0x265/0x560 [10030.266672][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10030.266672][ T254] addrconf_join_anycast+0x1c0/0x220 [10030.266672][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10030.266672][ T254] addrconf_dad_completed+0x12b/0xe20 [10030.266672][ T254] addrconf_dad_begin+0x310/0x670 [10030.266672][ T254] addrconf_dad_work+0x10b/0xab0 [10030.266672][ T254] process_one_work+0x84d/0x18a0 [10030.266672][ T254] worker_thread+0x587/0xd30 [10030.266672][ T254] kthread+0x28a/0x350 [10030.266672][ T254] ret_from_fork+0x31/0x70 [10030.266672][ T254] ret_from_fork_asm+0x1a/0x30 [10030.266672][ T254] [10030.268856][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.268856][ T254] netdev_get_by_index+0x5e/0x80 [10030.268856][ T254] fib6_nh_init+0x3d8/0x1580 [10030.268856][ T254] ip6_route_info_create+0xf18/0x17d0 [10030.268856][ T254] ip6_route_add+0x1c/0x140 [10030.268856][ T254] addrconf_prefix_route+0x2a6/0x430 [10030.268856][ T254] inet6_addr_add+0x4f8/0xa40 [10030.268856][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10030.268856][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10030.268856][ T254] netlink_rcv_skb+0x130/0x360 [10030.268856][ T254] netlink_unicast+0x449/0x710 [10030.268856][ T254] netlink_sendmsg+0x723/0xbe0 [10030.268856][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.268856][ T254] ___sys_sendmsg+0xee/0x170 [10030.268856][ T254] __sys_sendmsg+0xcd/0x170 [10030.268856][ T254] do_syscall_64+0xc6/0x1e0 [10030.268856][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10030.268856][ T254] [10030.271120][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.271120][ T254] netdev_get_by_index+0x5e/0x80 [10030.271120][ T254] fib6_nh_init+0x3d8/0x1580 [10030.271120][ T254] ip6_route_info_create+0xf18/0x17d0 [10030.271120][ T254] addrconf_f6i_alloc+0x315/0x560 [10030.271120][ T254] ipv6_add_addr+0x411/0x2000 [10030.271120][ T254] inet6_addr_add+0x30e/0xa40 [10030.271120][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10030.271120][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10030.271120][ T254] netlink_rcv_skb+0x130/0x360 [10030.271120][ T254] netlink_unicast+0x449/0x710 [10030.271120][ T254] netlink_sendmsg+0x723/0xbe0 [10030.271120][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.271120][ T254] ___sys_sendmsg+0xee/0x170 [10030.271120][ T254] __sys_sendmsg+0xcd/0x170 [10030.271120][ T254] do_syscall_64+0xc6/0x1e0 [10030.271120][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10030.271120][ T254] [10030.273398][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.273398][ T254] netdev_get_by_index+0x5e/0x80 [10030.273398][ T254] fib6_nh_init+0x3d8/0x1580 [10030.273398][ T254] ip6_route_info_create+0xf18/0x17d0 [10030.273398][ T254] ip6_route_add+0x1c/0x140 [10030.273398][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10030.273398][ T254] addrconf_add_dev+0xe2/0x170 [10030.273398][ T254] inet6_addr_add+0x12f/0xa40 [10030.273398][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10030.273398][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10030.273398][ T254] netlink_rcv_skb+0x130/0x360 [10030.273398][ T254] netlink_unicast+0x449/0x710 [10030.273398][ T254] netlink_sendmsg+0x723/0xbe0 [10030.273398][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.273398][ T254] ___sys_sendmsg+0xee/0x170 [10030.273398][ T254] __sys_sendmsg+0xcd/0x170 [10030.273398][ T254] do_syscall_64+0xc6/0x1e0 [10030.273398][ T254] [10030.275627][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.275627][ T254] ipv6_add_dev+0x3ba/0x11c0 [10030.275627][ T254] ipv6_find_idev+0x102/0x170 [10030.275627][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10030.275627][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10030.275627][ T254] netlink_rcv_skb+0x130/0x360 [10030.275627][ T254] netlink_unicast+0x449/0x710 [10030.275627][ T254] netlink_sendmsg+0x723/0xbe0 [10030.275627][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.275627][ T254] ___sys_sendmsg+0xee/0x170 [10030.275627][ T254] __sys_sendmsg+0xcd/0x170 [10030.275627][ T254] do_syscall_64+0xc6/0x1e0 [10030.275627][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10030.275627][ T254] [10030.277368][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10030.277368][ T254] neigh_parms_alloc+0x1e5/0x510 [10030.277368][ T254] ipv6_add_dev+0x2fe/0x11c0 [10030.277368][ T254] ipv6_find_idev+0x102/0x170 [10030.277368][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10030.277368][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10030.277368][ T254] netlink_rcv_skb+0x130/0x360 [10030.277368][ T254] netlink_unicast+0x449/0x710 [10030.277368][ T254] netlink_sendmsg+0x723/0xbe0 [10030.277368][ T254] ____sys_sendmsg+0x7b2/0xa10 [10030.277368][ T254] ___sys_sendmsg+0xee/0x170 [10030.277368][ T254] __sys_sendmsg+0xcd/0x170 [10030.277368][ T254] do_syscall_64+0xc6/0x1e0 [10030.277368][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10030.277368][ T254] [10040.519871][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10040.520406][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.520406][ T254] dst_init+0x84/0x4a0 [10040.520406][ T254] dst_alloc+0x97/0x150 [10040.520406][ T254] ip6_dst_alloc+0x23/0x90 [10040.520406][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10040.520406][ T254] ip6_pol_route+0x56f/0x840 [10040.520406][ T254] fib6_rule_lookup+0x334/0x630 [10040.520406][ T254] ip6_route_output_flags+0x259/0x480 [10040.520406][ T254] inet6_rtm_getroute+0x980/0xf70 [10040.520406][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10040.520406][ T254] netlink_rcv_skb+0x130/0x360 [10040.520406][ T254] netlink_unicast+0x449/0x710 [10040.520406][ T254] netlink_sendmsg+0x723/0xbe0 [10040.520406][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.520406][ T254] ___sys_sendmsg+0xee/0x170 [10040.520406][ T254] __sys_sendmsg+0xcd/0x170 [10040.520406][ T254] do_syscall_64+0xc6/0x1e0 [10040.520406][ T254] [10040.522613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.522613][ T254] netdev_get_by_index+0x5e/0x80 [10040.522613][ T254] fib6_nh_init+0x3d8/0x1580 [10040.522613][ T254] ip6_route_info_create+0xf18/0x17d0 [10040.522613][ T254] addrconf_f6i_alloc+0x265/0x560 [10040.522613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10040.522613][ T254] addrconf_join_anycast+0x1c0/0x220 [10040.522613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10040.522613][ T254] addrconf_dad_completed+0x12b/0xe20 [10040.522613][ T254] addrconf_dad_begin+0x310/0x670 [10040.522613][ T254] addrconf_dad_work+0x10b/0xab0 [10040.522613][ T254] process_one_work+0x84d/0x18a0 [10040.522613][ T254] worker_thread+0x587/0xd30 [10040.522613][ T254] kthread+0x28a/0x350 [10040.522613][ T254] ret_from_fork+0x31/0x70 [10040.522613][ T254] ret_from_fork_asm+0x1a/0x30 [10040.522613][ T254] [10040.524762][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.524762][ T254] netdev_get_by_index+0x5e/0x80 [10040.524762][ T254] fib6_nh_init+0x3d8/0x1580 [10040.524762][ T254] ip6_route_info_create+0xf18/0x17d0 [10040.524762][ T254] ip6_route_add+0x1c/0x140 [10040.524762][ T254] addrconf_prefix_route+0x2a6/0x430 [10040.524762][ T254] inet6_addr_add+0x4f8/0xa40 [10040.524762][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10040.524762][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10040.524762][ T254] netlink_rcv_skb+0x130/0x360 [10040.524762][ T254] netlink_unicast+0x449/0x710 [10040.524762][ T254] netlink_sendmsg+0x723/0xbe0 [10040.524762][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.524762][ T254] ___sys_sendmsg+0xee/0x170 [10040.524762][ T254] __sys_sendmsg+0xcd/0x170 [10040.524762][ T254] do_syscall_64+0xc6/0x1e0 [10040.524762][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10040.524762][ T254] [10040.527011][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.527011][ T254] netdev_get_by_index+0x5e/0x80 [10040.527011][ T254] fib6_nh_init+0x3d8/0x1580 [10040.527011][ T254] ip6_route_info_create+0xf18/0x17d0 [10040.527011][ T254] addrconf_f6i_alloc+0x315/0x560 [10040.527011][ T254] ipv6_add_addr+0x411/0x2000 [10040.527011][ T254] inet6_addr_add+0x30e/0xa40 [10040.527011][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10040.527011][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10040.527011][ T254] netlink_rcv_skb+0x130/0x360 [10040.527011][ T254] netlink_unicast+0x449/0x710 [10040.527011][ T254] netlink_sendmsg+0x723/0xbe0 [10040.527011][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.527011][ T254] ___sys_sendmsg+0xee/0x170 [10040.527011][ T254] __sys_sendmsg+0xcd/0x170 [10040.527011][ T254] do_syscall_64+0xc6/0x1e0 [10040.527011][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10040.527011][ T254] [10040.529257][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.529257][ T254] netdev_get_by_index+0x5e/0x80 [10040.529257][ T254] fib6_nh_init+0x3d8/0x1580 [10040.529257][ T254] ip6_route_info_create+0xf18/0x17d0 [10040.529257][ T254] ip6_route_add+0x1c/0x140 [10040.529257][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10040.529257][ T254] addrconf_add_dev+0xe2/0x170 [10040.529257][ T254] inet6_addr_add+0x12f/0xa40 [10040.529257][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10040.529257][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10040.529257][ T254] netlink_rcv_skb+0x130/0x360 [10040.529257][ T254] netlink_unicast+0x449/0x710 [10040.529257][ T254] netlink_sendmsg+0x723/0xbe0 [10040.529257][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.529257][ T254] ___sys_sendmsg+0xee/0x170 [10040.529257][ T254] __sys_sendmsg+0xcd/0x170 [10040.529257][ T254] do_syscall_64+0xc6/0x1e0 [10040.529257][ T254] [10040.531479][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.531479][ T254] ipv6_add_dev+0x3ba/0x11c0 [10040.531479][ T254] ipv6_find_idev+0x102/0x170 [10040.531479][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10040.531479][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10040.531479][ T254] netlink_rcv_skb+0x130/0x360 [10040.531479][ T254] netlink_unicast+0x449/0x710 [10040.531479][ T254] netlink_sendmsg+0x723/0xbe0 [10040.531479][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.531479][ T254] ___sys_sendmsg+0xee/0x170 [10040.531479][ T254] __sys_sendmsg+0xcd/0x170 [10040.531479][ T254] do_syscall_64+0xc6/0x1e0 [10040.531479][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10040.531479][ T254] [10040.533249][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10040.533249][ T254] neigh_parms_alloc+0x1e5/0x510 [10040.533249][ T254] ipv6_add_dev+0x2fe/0x11c0 [10040.533249][ T254] ipv6_find_idev+0x102/0x170 [10040.533249][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10040.533249][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10040.533249][ T254] netlink_rcv_skb+0x130/0x360 [10040.533249][ T254] netlink_unicast+0x449/0x710 [10040.533249][ T254] netlink_sendmsg+0x723/0xbe0 [10040.533249][ T254] ____sys_sendmsg+0x7b2/0xa10 [10040.533249][ T254] ___sys_sendmsg+0xee/0x170 [10040.533249][ T254] __sys_sendmsg+0xcd/0x170 [10040.533249][ T254] do_syscall_64+0xc6/0x1e0 [10040.533249][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10040.533249][ T254] [10050.775846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10050.776374][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.776374][ T254] dst_init+0x84/0x4a0 [10050.776374][ T254] dst_alloc+0x97/0x150 [10050.776374][ T254] ip6_dst_alloc+0x23/0x90 [10050.776374][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10050.776374][ T254] ip6_pol_route+0x56f/0x840 [10050.776374][ T254] fib6_rule_lookup+0x334/0x630 [10050.776374][ T254] ip6_route_output_flags+0x259/0x480 [10050.776374][ T254] inet6_rtm_getroute+0x980/0xf70 [10050.776374][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10050.776374][ T254] netlink_rcv_skb+0x130/0x360 [10050.776374][ T254] netlink_unicast+0x449/0x710 [10050.776374][ T254] netlink_sendmsg+0x723/0xbe0 [10050.776374][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.776374][ T254] ___sys_sendmsg+0xee/0x170 [10050.776374][ T254] __sys_sendmsg+0xcd/0x170 [10050.776374][ T254] do_syscall_64+0xc6/0x1e0 [10050.776374][ T254] [10050.778597][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.778597][ T254] netdev_get_by_index+0x5e/0x80 [10050.778597][ T254] fib6_nh_init+0x3d8/0x1580 [10050.778597][ T254] ip6_route_info_create+0xf18/0x17d0 [10050.778597][ T254] addrconf_f6i_alloc+0x265/0x560 [10050.778597][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10050.778597][ T254] addrconf_join_anycast+0x1c0/0x220 [10050.778597][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10050.778597][ T254] addrconf_dad_completed+0x12b/0xe20 [10050.778597][ T254] addrconf_dad_begin+0x310/0x670 [10050.778597][ T254] addrconf_dad_work+0x10b/0xab0 [10050.778597][ T254] process_one_work+0x84d/0x18a0 [10050.778597][ T254] worker_thread+0x587/0xd30 [10050.778597][ T254] kthread+0x28a/0x350 [10050.778597][ T254] ret_from_fork+0x31/0x70 [10050.778597][ T254] ret_from_fork_asm+0x1a/0x30 [10050.778597][ T254] [10050.780793][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.780793][ T254] netdev_get_by_index+0x5e/0x80 [10050.780793][ T254] fib6_nh_init+0x3d8/0x1580 [10050.780793][ T254] ip6_route_info_create+0xf18/0x17d0 [10050.780793][ T254] ip6_route_add+0x1c/0x140 [10050.780793][ T254] addrconf_prefix_route+0x2a6/0x430 [10050.780793][ T254] inet6_addr_add+0x4f8/0xa40 [10050.780793][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10050.780793][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10050.780793][ T254] netlink_rcv_skb+0x130/0x360 [10050.780793][ T254] netlink_unicast+0x449/0x710 [10050.780793][ T254] netlink_sendmsg+0x723/0xbe0 [10050.780793][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.780793][ T254] ___sys_sendmsg+0xee/0x170 [10050.780793][ T254] __sys_sendmsg+0xcd/0x170 [10050.780793][ T254] do_syscall_64+0xc6/0x1e0 [10050.780793][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10050.780793][ T254] [10050.783037][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.783037][ T254] netdev_get_by_index+0x5e/0x80 [10050.783037][ T254] fib6_nh_init+0x3d8/0x1580 [10050.783037][ T254] ip6_route_info_create+0xf18/0x17d0 [10050.783037][ T254] addrconf_f6i_alloc+0x315/0x560 [10050.783037][ T254] ipv6_add_addr+0x411/0x2000 [10050.783037][ T254] inet6_addr_add+0x30e/0xa40 [10050.783037][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10050.783037][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10050.783037][ T254] netlink_rcv_skb+0x130/0x360 [10050.783037][ T254] netlink_unicast+0x449/0x710 [10050.783037][ T254] netlink_sendmsg+0x723/0xbe0 [10050.783037][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.783037][ T254] ___sys_sendmsg+0xee/0x170 [10050.783037][ T254] __sys_sendmsg+0xcd/0x170 [10050.783037][ T254] do_syscall_64+0xc6/0x1e0 [10050.783037][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10050.783037][ T254] [10050.785273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.785273][ T254] netdev_get_by_index+0x5e/0x80 [10050.785273][ T254] fib6_nh_init+0x3d8/0x1580 [10050.785273][ T254] ip6_route_info_create+0xf18/0x17d0 [10050.785273][ T254] ip6_route_add+0x1c/0x140 [10050.785273][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10050.785273][ T254] addrconf_add_dev+0xe2/0x170 [10050.785273][ T254] inet6_addr_add+0x12f/0xa40 [10050.785273][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10050.785273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10050.785273][ T254] netlink_rcv_skb+0x130/0x360 [10050.785273][ T254] netlink_unicast+0x449/0x710 [10050.785273][ T254] netlink_sendmsg+0x723/0xbe0 [10050.785273][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.785273][ T254] ___sys_sendmsg+0xee/0x170 [10050.785273][ T254] __sys_sendmsg+0xcd/0x170 [10050.785273][ T254] do_syscall_64+0xc6/0x1e0 [10050.785273][ T254] [10050.787469][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.787469][ T254] ipv6_add_dev+0x3ba/0x11c0 [10050.787469][ T254] ipv6_find_idev+0x102/0x170 [10050.787469][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10050.787469][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10050.787469][ T254] netlink_rcv_skb+0x130/0x360 [10050.787469][ T254] netlink_unicast+0x449/0x710 [10050.787469][ T254] netlink_sendmsg+0x723/0xbe0 [10050.787469][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.787469][ T254] ___sys_sendmsg+0xee/0x170 [10050.787469][ T254] __sys_sendmsg+0xcd/0x170 [10050.787469][ T254] do_syscall_64+0xc6/0x1e0 [10050.787469][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10050.787469][ T254] [10050.789195][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10050.789195][ T254] neigh_parms_alloc+0x1e5/0x510 [10050.789195][ T254] ipv6_add_dev+0x2fe/0x11c0 [10050.789195][ T254] ipv6_find_idev+0x102/0x170 [10050.789195][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10050.789195][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10050.789195][ T254] netlink_rcv_skb+0x130/0x360 [10050.789195][ T254] netlink_unicast+0x449/0x710 [10050.789195][ T254] netlink_sendmsg+0x723/0xbe0 [10050.789195][ T254] ____sys_sendmsg+0x7b2/0xa10 [10050.789195][ T254] ___sys_sendmsg+0xee/0x170 [10050.789195][ T254] __sys_sendmsg+0xcd/0x170 [10050.789195][ T254] do_syscall_64+0xc6/0x1e0 [10050.789195][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10050.789195][ T254] [10061.031841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10061.032371][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.032371][ T254] dst_init+0x84/0x4a0 [10061.032371][ T254] dst_alloc+0x97/0x150 [10061.032371][ T254] ip6_dst_alloc+0x23/0x90 [10061.032371][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10061.032371][ T254] ip6_pol_route+0x56f/0x840 [10061.032371][ T254] fib6_rule_lookup+0x334/0x630 [10061.032371][ T254] ip6_route_output_flags+0x259/0x480 [10061.032371][ T254] inet6_rtm_getroute+0x980/0xf70 [10061.032371][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10061.032371][ T254] netlink_rcv_skb+0x130/0x360 [10061.032371][ T254] netlink_unicast+0x449/0x710 [10061.032371][ T254] netlink_sendmsg+0x723/0xbe0 [10061.032371][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.032371][ T254] ___sys_sendmsg+0xee/0x170 [10061.032371][ T254] __sys_sendmsg+0xcd/0x170 [10061.032371][ T254] do_syscall_64+0xc6/0x1e0 [10061.032371][ T254] [10061.034590][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.034590][ T254] netdev_get_by_index+0x5e/0x80 [10061.034590][ T254] fib6_nh_init+0x3d8/0x1580 [10061.034590][ T254] ip6_route_info_create+0xf18/0x17d0 [10061.034590][ T254] addrconf_f6i_alloc+0x265/0x560 [10061.034590][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10061.034590][ T254] addrconf_join_anycast+0x1c0/0x220 [10061.034590][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10061.034590][ T254] addrconf_dad_completed+0x12b/0xe20 [10061.034590][ T254] addrconf_dad_begin+0x310/0x670 [10061.034590][ T254] addrconf_dad_work+0x10b/0xab0 [10061.034590][ T254] process_one_work+0x84d/0x18a0 [10061.034590][ T254] worker_thread+0x587/0xd30 [10061.034590][ T254] kthread+0x28a/0x350 [10061.034590][ T254] ret_from_fork+0x31/0x70 [10061.034590][ T254] ret_from_fork_asm+0x1a/0x30 [10061.034590][ T254] [10061.036735][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.036735][ T254] netdev_get_by_index+0x5e/0x80 [10061.036735][ T254] fib6_nh_init+0x3d8/0x1580 [10061.036735][ T254] ip6_route_info_create+0xf18/0x17d0 [10061.036735][ T254] ip6_route_add+0x1c/0x140 [10061.036735][ T254] addrconf_prefix_route+0x2a6/0x430 [10061.036735][ T254] inet6_addr_add+0x4f8/0xa40 [10061.036735][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10061.036735][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10061.036735][ T254] netlink_rcv_skb+0x130/0x360 [10061.036735][ T254] netlink_unicast+0x449/0x710 [10061.036735][ T254] netlink_sendmsg+0x723/0xbe0 [10061.036735][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.036735][ T254] ___sys_sendmsg+0xee/0x170 [10061.036735][ T254] __sys_sendmsg+0xcd/0x170 [10061.036735][ T254] do_syscall_64+0xc6/0x1e0 [10061.036735][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10061.036735][ T254] [10061.038978][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.038978][ T254] netdev_get_by_index+0x5e/0x80 [10061.038978][ T254] fib6_nh_init+0x3d8/0x1580 [10061.038978][ T254] ip6_route_info_create+0xf18/0x17d0 [10061.038978][ T254] addrconf_f6i_alloc+0x315/0x560 [10061.038978][ T254] ipv6_add_addr+0x411/0x2000 [10061.038978][ T254] inet6_addr_add+0x30e/0xa40 [10061.038978][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10061.038978][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10061.038978][ T254] netlink_rcv_skb+0x130/0x360 [10061.038978][ T254] netlink_unicast+0x449/0x710 [10061.038978][ T254] netlink_sendmsg+0x723/0xbe0 [10061.038978][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.038978][ T254] ___sys_sendmsg+0xee/0x170 [10061.038978][ T254] __sys_sendmsg+0xcd/0x170 [10061.038978][ T254] do_syscall_64+0xc6/0x1e0 [10061.038978][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10061.038978][ T254] [10061.041222][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.041222][ T254] netdev_get_by_index+0x5e/0x80 [10061.041222][ T254] fib6_nh_init+0x3d8/0x1580 [10061.041222][ T254] ip6_route_info_create+0xf18/0x17d0 [10061.041222][ T254] ip6_route_add+0x1c/0x140 [10061.041222][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10061.041222][ T254] addrconf_add_dev+0xe2/0x170 [10061.041222][ T254] inet6_addr_add+0x12f/0xa40 [10061.041222][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10061.041222][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10061.041222][ T254] netlink_rcv_skb+0x130/0x360 [10061.041222][ T254] netlink_unicast+0x449/0x710 [10061.041222][ T254] netlink_sendmsg+0x723/0xbe0 [10061.041222][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.041222][ T254] ___sys_sendmsg+0xee/0x170 [10061.041222][ T254] __sys_sendmsg+0xcd/0x170 [10061.041222][ T254] do_syscall_64+0xc6/0x1e0 [10061.041222][ T254] [10061.043414][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.043414][ T254] ipv6_add_dev+0x3ba/0x11c0 [10061.043414][ T254] ipv6_find_idev+0x102/0x170 [10061.043414][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10061.043414][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10061.043414][ T254] netlink_rcv_skb+0x130/0x360 [10061.043414][ T254] netlink_unicast+0x449/0x710 [10061.043414][ T254] netlink_sendmsg+0x723/0xbe0 [10061.043414][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.043414][ T254] ___sys_sendmsg+0xee/0x170 [10061.043414][ T254] __sys_sendmsg+0xcd/0x170 [10061.043414][ T254] do_syscall_64+0xc6/0x1e0 [10061.043414][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10061.043414][ T254] [10061.045136][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10061.045136][ T254] neigh_parms_alloc+0x1e5/0x510 [10061.045136][ T254] ipv6_add_dev+0x2fe/0x11c0 [10061.045136][ T254] ipv6_find_idev+0x102/0x170 [10061.045136][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10061.045136][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10061.045136][ T254] netlink_rcv_skb+0x130/0x360 [10061.045136][ T254] netlink_unicast+0x449/0x710 [10061.045136][ T254] netlink_sendmsg+0x723/0xbe0 [10061.045136][ T254] ____sys_sendmsg+0x7b2/0xa10 [10061.045136][ T254] ___sys_sendmsg+0xee/0x170 [10061.045136][ T254] __sys_sendmsg+0xcd/0x170 [10061.045136][ T254] do_syscall_64+0xc6/0x1e0 [10061.045136][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10061.045136][ T254] [10071.287852][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10071.288380][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.288380][ T254] dst_init+0x84/0x4a0 [10071.288380][ T254] dst_alloc+0x97/0x150 [10071.288380][ T254] ip6_dst_alloc+0x23/0x90 [10071.288380][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10071.288380][ T254] ip6_pol_route+0x56f/0x840 [10071.288380][ T254] fib6_rule_lookup+0x334/0x630 [10071.288380][ T254] ip6_route_output_flags+0x259/0x480 [10071.288380][ T254] inet6_rtm_getroute+0x980/0xf70 [10071.288380][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10071.288380][ T254] netlink_rcv_skb+0x130/0x360 [10071.288380][ T254] netlink_unicast+0x449/0x710 [10071.288380][ T254] netlink_sendmsg+0x723/0xbe0 [10071.288380][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.288380][ T254] ___sys_sendmsg+0xee/0x170 [10071.288380][ T254] __sys_sendmsg+0xcd/0x170 [10071.288380][ T254] do_syscall_64+0xc6/0x1e0 [10071.288380][ T254] [10071.290573][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.290573][ T254] netdev_get_by_index+0x5e/0x80 [10071.290573][ T254] fib6_nh_init+0x3d8/0x1580 [10071.290573][ T254] ip6_route_info_create+0xf18/0x17d0 [10071.290573][ T254] addrconf_f6i_alloc+0x265/0x560 [10071.290573][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10071.290573][ T254] addrconf_join_anycast+0x1c0/0x220 [10071.290573][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10071.290573][ T254] addrconf_dad_completed+0x12b/0xe20 [10071.290573][ T254] addrconf_dad_begin+0x310/0x670 [10071.290573][ T254] addrconf_dad_work+0x10b/0xab0 [10071.290573][ T254] process_one_work+0x84d/0x18a0 [10071.290573][ T254] worker_thread+0x587/0xd30 [10071.290573][ T254] kthread+0x28a/0x350 [10071.290573][ T254] ret_from_fork+0x31/0x70 [10071.290573][ T254] ret_from_fork_asm+0x1a/0x30 [10071.290573][ T254] [10071.292732][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.292732][ T254] netdev_get_by_index+0x5e/0x80 [10071.292732][ T254] fib6_nh_init+0x3d8/0x1580 [10071.292732][ T254] ip6_route_info_create+0xf18/0x17d0 [10071.292732][ T254] ip6_route_add+0x1c/0x140 [10071.292732][ T254] addrconf_prefix_route+0x2a6/0x430 [10071.292732][ T254] inet6_addr_add+0x4f8/0xa40 [10071.292732][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10071.292732][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10071.292732][ T254] netlink_rcv_skb+0x130/0x360 [10071.292732][ T254] netlink_unicast+0x449/0x710 [10071.292732][ T254] netlink_sendmsg+0x723/0xbe0 [10071.292732][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.292732][ T254] ___sys_sendmsg+0xee/0x170 [10071.292732][ T254] __sys_sendmsg+0xcd/0x170 [10071.292732][ T254] do_syscall_64+0xc6/0x1e0 [10071.292732][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10071.292732][ T254] [10071.294965][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.294965][ T254] netdev_get_by_index+0x5e/0x80 [10071.294965][ T254] fib6_nh_init+0x3d8/0x1580 [10071.294965][ T254] ip6_route_info_create+0xf18/0x17d0 [10071.294965][ T254] addrconf_f6i_alloc+0x315/0x560 [10071.294965][ T254] ipv6_add_addr+0x411/0x2000 [10071.294965][ T254] inet6_addr_add+0x30e/0xa40 [10071.294965][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10071.294965][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10071.294965][ T254] netlink_rcv_skb+0x130/0x360 [10071.294965][ T254] netlink_unicast+0x449/0x710 [10071.294965][ T254] netlink_sendmsg+0x723/0xbe0 [10071.294965][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.294965][ T254] ___sys_sendmsg+0xee/0x170 [10071.294965][ T254] __sys_sendmsg+0xcd/0x170 [10071.294965][ T254] do_syscall_64+0xc6/0x1e0 [10071.294965][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10071.294965][ T254] [10071.297203][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.297203][ T254] netdev_get_by_index+0x5e/0x80 [10071.297203][ T254] fib6_nh_init+0x3d8/0x1580 [10071.297203][ T254] ip6_route_info_create+0xf18/0x17d0 [10071.297203][ T254] ip6_route_add+0x1c/0x140 [10071.297203][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10071.297203][ T254] addrconf_add_dev+0xe2/0x170 [10071.297203][ T254] inet6_addr_add+0x12f/0xa40 [10071.297203][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10071.297203][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10071.297203][ T254] netlink_rcv_skb+0x130/0x360 [10071.297203][ T254] netlink_unicast+0x449/0x710 [10071.297203][ T254] netlink_sendmsg+0x723/0xbe0 [10071.297203][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.297203][ T254] ___sys_sendmsg+0xee/0x170 [10071.297203][ T254] __sys_sendmsg+0xcd/0x170 [10071.297203][ T254] do_syscall_64+0xc6/0x1e0 [10071.297203][ T254] [10071.299415][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.299415][ T254] ipv6_add_dev+0x3ba/0x11c0 [10071.299415][ T254] ipv6_find_idev+0x102/0x170 [10071.299415][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10071.299415][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10071.299415][ T254] netlink_rcv_skb+0x130/0x360 [10071.299415][ T254] netlink_unicast+0x449/0x710 [10071.299415][ T254] netlink_sendmsg+0x723/0xbe0 [10071.299415][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.299415][ T254] ___sys_sendmsg+0xee/0x170 [10071.299415][ T254] __sys_sendmsg+0xcd/0x170 [10071.299415][ T254] do_syscall_64+0xc6/0x1e0 [10071.299415][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10071.299415][ T254] [10071.301150][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10071.301150][ T254] neigh_parms_alloc+0x1e5/0x510 [10071.301150][ T254] ipv6_add_dev+0x2fe/0x11c0 [10071.301150][ T254] ipv6_find_idev+0x102/0x170 [10071.301150][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10071.301150][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10071.301150][ T254] netlink_rcv_skb+0x130/0x360 [10071.301150][ T254] netlink_unicast+0x449/0x710 [10071.301150][ T254] netlink_sendmsg+0x723/0xbe0 [10071.301150][ T254] ____sys_sendmsg+0x7b2/0xa10 [10071.301150][ T254] ___sys_sendmsg+0xee/0x170 [10071.301150][ T254] __sys_sendmsg+0xcd/0x170 [10071.301150][ T254] do_syscall_64+0xc6/0x1e0 [10071.301150][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10071.301150][ T254] [10081.351841][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10081.352315][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.352315][ T254] dst_init+0x84/0x4a0 [10081.352315][ T254] dst_alloc+0x97/0x150 [10081.352315][ T254] ip6_dst_alloc+0x23/0x90 [10081.352315][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10081.352315][ T254] ip6_pol_route+0x56f/0x840 [10081.352315][ T254] fib6_rule_lookup+0x334/0x630 [10081.352315][ T254] ip6_route_output_flags+0x259/0x480 [10081.352315][ T254] inet6_rtm_getroute+0x980/0xf70 [10081.352315][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10081.352315][ T254] netlink_rcv_skb+0x130/0x360 [10081.352315][ T254] netlink_unicast+0x449/0x710 [10081.352315][ T254] netlink_sendmsg+0x723/0xbe0 [10081.352315][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.352315][ T254] ___sys_sendmsg+0xee/0x170 [10081.352315][ T254] __sys_sendmsg+0xcd/0x170 [10081.352315][ T254] do_syscall_64+0xc6/0x1e0 [10081.352315][ T254] [10081.354531][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.354531][ T254] netdev_get_by_index+0x5e/0x80 [10081.354531][ T254] fib6_nh_init+0x3d8/0x1580 [10081.354531][ T254] ip6_route_info_create+0xf18/0x17d0 [10081.354531][ T254] addrconf_f6i_alloc+0x265/0x560 [10081.354531][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10081.354531][ T254] addrconf_join_anycast+0x1c0/0x220 [10081.354531][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10081.354531][ T254] addrconf_dad_completed+0x12b/0xe20 [10081.354531][ T254] addrconf_dad_begin+0x310/0x670 [10081.354531][ T254] addrconf_dad_work+0x10b/0xab0 [10081.354531][ T254] process_one_work+0x84d/0x18a0 [10081.354531][ T254] worker_thread+0x587/0xd30 [10081.354531][ T254] kthread+0x28a/0x350 [10081.354531][ T254] ret_from_fork+0x31/0x70 [10081.354531][ T254] ret_from_fork_asm+0x1a/0x30 [10081.354531][ T254] [10081.356675][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.356675][ T254] netdev_get_by_index+0x5e/0x80 [10081.356675][ T254] fib6_nh_init+0x3d8/0x1580 [10081.356675][ T254] ip6_route_info_create+0xf18/0x17d0 [10081.356675][ T254] ip6_route_add+0x1c/0x140 [10081.356675][ T254] addrconf_prefix_route+0x2a6/0x430 [10081.356675][ T254] inet6_addr_add+0x4f8/0xa40 [10081.356675][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10081.356675][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10081.356675][ T254] netlink_rcv_skb+0x130/0x360 [10081.356675][ T254] netlink_unicast+0x449/0x710 [10081.356675][ T254] netlink_sendmsg+0x723/0xbe0 [10081.356675][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.356675][ T254] ___sys_sendmsg+0xee/0x170 [10081.356675][ T254] __sys_sendmsg+0xcd/0x170 [10081.356675][ T254] do_syscall_64+0xc6/0x1e0 [10081.356675][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10081.356675][ T254] [10081.358912][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.358912][ T254] netdev_get_by_index+0x5e/0x80 [10081.358912][ T254] fib6_nh_init+0x3d8/0x1580 [10081.358912][ T254] ip6_route_info_create+0xf18/0x17d0 [10081.358912][ T254] addrconf_f6i_alloc+0x315/0x560 [10081.358912][ T254] ipv6_add_addr+0x411/0x2000 [10081.358912][ T254] inet6_addr_add+0x30e/0xa40 [10081.358912][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10081.358912][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10081.358912][ T254] netlink_rcv_skb+0x130/0x360 [10081.358912][ T254] netlink_unicast+0x449/0x710 [10081.358912][ T254] netlink_sendmsg+0x723/0xbe0 [10081.358912][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.358912][ T254] ___sys_sendmsg+0xee/0x170 [10081.358912][ T254] __sys_sendmsg+0xcd/0x170 [10081.358912][ T254] do_syscall_64+0xc6/0x1e0 [10081.358912][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10081.358912][ T254] [10081.361165][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.361165][ T254] netdev_get_by_index+0x5e/0x80 [10081.361165][ T254] fib6_nh_init+0x3d8/0x1580 [10081.361165][ T254] ip6_route_info_create+0xf18/0x17d0 [10081.361165][ T254] ip6_route_add+0x1c/0x140 [10081.361165][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10081.361165][ T254] addrconf_add_dev+0xe2/0x170 [10081.361165][ T254] inet6_addr_add+0x12f/0xa40 [10081.361165][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10081.361165][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10081.361165][ T254] netlink_rcv_skb+0x130/0x360 [10081.361165][ T254] netlink_unicast+0x449/0x710 [10081.361165][ T254] netlink_sendmsg+0x723/0xbe0 [10081.361165][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.361165][ T254] ___sys_sendmsg+0xee/0x170 [10081.361165][ T254] __sys_sendmsg+0xcd/0x170 [10081.361165][ T254] do_syscall_64+0xc6/0x1e0 [10081.361165][ T254] [10081.363363][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.363363][ T254] ipv6_add_dev+0x3ba/0x11c0 [10081.363363][ T254] ipv6_find_idev+0x102/0x170 [10081.363363][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10081.363363][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10081.363363][ T254] netlink_rcv_skb+0x130/0x360 [10081.363363][ T254] netlink_unicast+0x449/0x710 [10081.363363][ T254] netlink_sendmsg+0x723/0xbe0 [10081.363363][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.363363][ T254] ___sys_sendmsg+0xee/0x170 [10081.363363][ T254] __sys_sendmsg+0xcd/0x170 [10081.363363][ T254] do_syscall_64+0xc6/0x1e0 [10081.363363][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10081.363363][ T254] [10081.365083][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10081.365083][ T254] neigh_parms_alloc+0x1e5/0x510 [10081.365083][ T254] ipv6_add_dev+0x2fe/0x11c0 [10081.365083][ T254] ipv6_find_idev+0x102/0x170 [10081.365083][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10081.365083][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10081.365083][ T254] netlink_rcv_skb+0x130/0x360 [10081.365083][ T254] netlink_unicast+0x449/0x710 [10081.365083][ T254] netlink_sendmsg+0x723/0xbe0 [10081.365083][ T254] ____sys_sendmsg+0x7b2/0xa10 [10081.365083][ T254] ___sys_sendmsg+0xee/0x170 [10081.365083][ T254] __sys_sendmsg+0xcd/0x170 [10081.365083][ T254] do_syscall_64+0xc6/0x1e0 [10081.365083][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10081.365083][ T254] [10091.495846][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10091.496376][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.496376][ T254] dst_init+0x84/0x4a0 [10091.496376][ T254] dst_alloc+0x97/0x150 [10091.496376][ T254] ip6_dst_alloc+0x23/0x90 [10091.496376][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10091.496376][ T254] ip6_pol_route+0x56f/0x840 [10091.496376][ T254] fib6_rule_lookup+0x334/0x630 [10091.496376][ T254] ip6_route_output_flags+0x259/0x480 [10091.496376][ T254] inet6_rtm_getroute+0x980/0xf70 [10091.496376][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10091.496376][ T254] netlink_rcv_skb+0x130/0x360 [10091.496376][ T254] netlink_unicast+0x449/0x710 [10091.496376][ T254] netlink_sendmsg+0x723/0xbe0 [10091.496376][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.496376][ T254] ___sys_sendmsg+0xee/0x170 [10091.496376][ T254] __sys_sendmsg+0xcd/0x170 [10091.496376][ T254] do_syscall_64+0xc6/0x1e0 [10091.496376][ T254] [10091.498581][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.498581][ T254] netdev_get_by_index+0x5e/0x80 [10091.498581][ T254] fib6_nh_init+0x3d8/0x1580 [10091.498581][ T254] ip6_route_info_create+0xf18/0x17d0 [10091.498581][ T254] addrconf_f6i_alloc+0x265/0x560 [10091.498581][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10091.498581][ T254] addrconf_join_anycast+0x1c0/0x220 [10091.498581][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10091.498581][ T254] addrconf_dad_completed+0x12b/0xe20 [10091.498581][ T254] addrconf_dad_begin+0x310/0x670 [10091.498581][ T254] addrconf_dad_work+0x10b/0xab0 [10091.498581][ T254] process_one_work+0x84d/0x18a0 [10091.498581][ T254] worker_thread+0x587/0xd30 [10091.498581][ T254] kthread+0x28a/0x350 [10091.498581][ T254] ret_from_fork+0x31/0x70 [10091.498581][ T254] ret_from_fork_asm+0x1a/0x30 [10091.498581][ T254] [10091.500727][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.500727][ T254] netdev_get_by_index+0x5e/0x80 [10091.500727][ T254] fib6_nh_init+0x3d8/0x1580 [10091.500727][ T254] ip6_route_info_create+0xf18/0x17d0 [10091.500727][ T254] ip6_route_add+0x1c/0x140 [10091.500727][ T254] addrconf_prefix_route+0x2a6/0x430 [10091.500727][ T254] inet6_addr_add+0x4f8/0xa40 [10091.500727][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10091.500727][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10091.500727][ T254] netlink_rcv_skb+0x130/0x360 [10091.500727][ T254] netlink_unicast+0x449/0x710 [10091.500727][ T254] netlink_sendmsg+0x723/0xbe0 [10091.500727][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.500727][ T254] ___sys_sendmsg+0xee/0x170 [10091.500727][ T254] __sys_sendmsg+0xcd/0x170 [10091.500727][ T254] do_syscall_64+0xc6/0x1e0 [10091.500727][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10091.500727][ T254] [10091.502970][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.502970][ T254] netdev_get_by_index+0x5e/0x80 [10091.502970][ T254] fib6_nh_init+0x3d8/0x1580 [10091.502970][ T254] ip6_route_info_create+0xf18/0x17d0 [10091.502970][ T254] addrconf_f6i_alloc+0x315/0x560 [10091.502970][ T254] ipv6_add_addr+0x411/0x2000 [10091.502970][ T254] inet6_addr_add+0x30e/0xa40 [10091.502970][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10091.502970][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10091.502970][ T254] netlink_rcv_skb+0x130/0x360 [10091.502970][ T254] netlink_unicast+0x449/0x710 [10091.502970][ T254] netlink_sendmsg+0x723/0xbe0 [10091.502970][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.502970][ T254] ___sys_sendmsg+0xee/0x170 [10091.502970][ T254] __sys_sendmsg+0xcd/0x170 [10091.502970][ T254] do_syscall_64+0xc6/0x1e0 [10091.502970][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10091.502970][ T254] [10091.505208][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.505208][ T254] netdev_get_by_index+0x5e/0x80 [10091.505208][ T254] fib6_nh_init+0x3d8/0x1580 [10091.505208][ T254] ip6_route_info_create+0xf18/0x17d0 [10091.505208][ T254] ip6_route_add+0x1c/0x140 [10091.505208][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10091.505208][ T254] addrconf_add_dev+0xe2/0x170 [10091.505208][ T254] inet6_addr_add+0x12f/0xa40 [10091.505208][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10091.505208][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10091.505208][ T254] netlink_rcv_skb+0x130/0x360 [10091.505208][ T254] netlink_unicast+0x449/0x710 [10091.505208][ T254] netlink_sendmsg+0x723/0xbe0 [10091.505208][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.505208][ T254] ___sys_sendmsg+0xee/0x170 [10091.505208][ T254] __sys_sendmsg+0xcd/0x170 [10091.505208][ T254] do_syscall_64+0xc6/0x1e0 [10091.505208][ T254] [10091.507420][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.507420][ T254] ipv6_add_dev+0x3ba/0x11c0 [10091.507420][ T254] ipv6_find_idev+0x102/0x170 [10091.507420][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10091.507420][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10091.507420][ T254] netlink_rcv_skb+0x130/0x360 [10091.507420][ T254] netlink_unicast+0x449/0x710 [10091.507420][ T254] netlink_sendmsg+0x723/0xbe0 [10091.507420][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.507420][ T254] ___sys_sendmsg+0xee/0x170 [10091.507420][ T254] __sys_sendmsg+0xcd/0x170 [10091.507420][ T254] do_syscall_64+0xc6/0x1e0 [10091.507420][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10091.507420][ T254] [10091.509145][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10091.509145][ T254] neigh_parms_alloc+0x1e5/0x510 [10091.509145][ T254] ipv6_add_dev+0x2fe/0x11c0 [10091.509145][ T254] ipv6_find_idev+0x102/0x170 [10091.509145][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10091.509145][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10091.509145][ T254] netlink_rcv_skb+0x130/0x360 [10091.509145][ T254] netlink_unicast+0x449/0x710 [10091.509145][ T254] netlink_sendmsg+0x723/0xbe0 [10091.509145][ T254] ____sys_sendmsg+0x7b2/0xa10 [10091.509145][ T254] ___sys_sendmsg+0xee/0x170 [10091.509145][ T254] __sys_sendmsg+0xcd/0x170 [10091.509145][ T254] do_syscall_64+0xc6/0x1e0 [10091.509145][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10091.509145][ T254] [10101.751781][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10101.752304][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.752304][ T254] dst_init+0x84/0x4a0 [10101.752304][ T254] dst_alloc+0x97/0x150 [10101.752304][ T254] ip6_dst_alloc+0x23/0x90 [10101.752304][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10101.752304][ T254] ip6_pol_route+0x56f/0x840 [10101.752304][ T254] fib6_rule_lookup+0x334/0x630 [10101.752304][ T254] ip6_route_output_flags+0x259/0x480 [10101.752304][ T254] inet6_rtm_getroute+0x980/0xf70 [10101.752304][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10101.752304][ T254] netlink_rcv_skb+0x130/0x360 [10101.752304][ T254] netlink_unicast+0x449/0x710 [10101.752304][ T254] netlink_sendmsg+0x723/0xbe0 [10101.752304][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.752304][ T254] ___sys_sendmsg+0xee/0x170 [10101.752304][ T254] __sys_sendmsg+0xcd/0x170 [10101.752304][ T254] do_syscall_64+0xc6/0x1e0 [10101.752304][ T254] [10101.754516][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.754516][ T254] netdev_get_by_index+0x5e/0x80 [10101.754516][ T254] fib6_nh_init+0x3d8/0x1580 [10101.754516][ T254] ip6_route_info_create+0xf18/0x17d0 [10101.754516][ T254] addrconf_f6i_alloc+0x265/0x560 [10101.754516][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10101.754516][ T254] addrconf_join_anycast+0x1c0/0x220 [10101.754516][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10101.754516][ T254] addrconf_dad_completed+0x12b/0xe20 [10101.754516][ T254] addrconf_dad_begin+0x310/0x670 [10101.754516][ T254] addrconf_dad_work+0x10b/0xab0 [10101.754516][ T254] process_one_work+0x84d/0x18a0 [10101.754516][ T254] worker_thread+0x587/0xd30 [10101.754516][ T254] kthread+0x28a/0x350 [10101.754516][ T254] ret_from_fork+0x31/0x70 [10101.754516][ T254] ret_from_fork_asm+0x1a/0x30 [10101.754516][ T254] [10101.756665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.756665][ T254] netdev_get_by_index+0x5e/0x80 [10101.756665][ T254] fib6_nh_init+0x3d8/0x1580 [10101.756665][ T254] ip6_route_info_create+0xf18/0x17d0 [10101.756665][ T254] ip6_route_add+0x1c/0x140 [10101.756665][ T254] addrconf_prefix_route+0x2a6/0x430 [10101.756665][ T254] inet6_addr_add+0x4f8/0xa40 [10101.756665][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10101.756665][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10101.756665][ T254] netlink_rcv_skb+0x130/0x360 [10101.756665][ T254] netlink_unicast+0x449/0x710 [10101.756665][ T254] netlink_sendmsg+0x723/0xbe0 [10101.756665][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.756665][ T254] ___sys_sendmsg+0xee/0x170 [10101.756665][ T254] __sys_sendmsg+0xcd/0x170 [10101.756665][ T254] do_syscall_64+0xc6/0x1e0 [10101.756665][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10101.756665][ T254] [10101.758960][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.758960][ T254] netdev_get_by_index+0x5e/0x80 [10101.758960][ T254] fib6_nh_init+0x3d8/0x1580 [10101.758960][ T254] ip6_route_info_create+0xf18/0x17d0 [10101.758960][ T254] addrconf_f6i_alloc+0x315/0x560 [10101.758960][ T254] ipv6_add_addr+0x411/0x2000 [10101.758960][ T254] inet6_addr_add+0x30e/0xa40 [10101.758960][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10101.758960][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10101.758960][ T254] netlink_rcv_skb+0x130/0x360 [10101.758960][ T254] netlink_unicast+0x449/0x710 [10101.758960][ T254] netlink_sendmsg+0x723/0xbe0 [10101.758960][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.758960][ T254] ___sys_sendmsg+0xee/0x170 [10101.758960][ T254] __sys_sendmsg+0xcd/0x170 [10101.758960][ T254] do_syscall_64+0xc6/0x1e0 [10101.758960][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10101.758960][ T254] [10101.761268][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.761268][ T254] netdev_get_by_index+0x5e/0x80 [10101.761268][ T254] fib6_nh_init+0x3d8/0x1580 [10101.761268][ T254] ip6_route_info_create+0xf18/0x17d0 [10101.761268][ T254] ip6_route_add+0x1c/0x140 [10101.761268][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10101.761268][ T254] addrconf_add_dev+0xe2/0x170 [10101.761268][ T254] inet6_addr_add+0x12f/0xa40 [10101.761268][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10101.761268][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10101.761268][ T254] netlink_rcv_skb+0x130/0x360 [10101.761268][ T254] netlink_unicast+0x449/0x710 [10101.761268][ T254] netlink_sendmsg+0x723/0xbe0 [10101.761268][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.761268][ T254] ___sys_sendmsg+0xee/0x170 [10101.761268][ T254] __sys_sendmsg+0xcd/0x170 [10101.761268][ T254] do_syscall_64+0xc6/0x1e0 [10101.761268][ T254] [10101.763511][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.763511][ T254] ipv6_add_dev+0x3ba/0x11c0 [10101.763511][ T254] ipv6_find_idev+0x102/0x170 [10101.763511][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10101.763511][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10101.763511][ T254] netlink_rcv_skb+0x130/0x360 [10101.763511][ T254] netlink_unicast+0x449/0x710 [10101.763511][ T254] netlink_sendmsg+0x723/0xbe0 [10101.763511][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.763511][ T254] ___sys_sendmsg+0xee/0x170 [10101.763511][ T254] __sys_sendmsg+0xcd/0x170 [10101.763511][ T254] do_syscall_64+0xc6/0x1e0 [10101.763511][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10101.763511][ T254] [10101.765273][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10101.765273][ T254] neigh_parms_alloc+0x1e5/0x510 [10101.765273][ T254] ipv6_add_dev+0x2fe/0x11c0 [10101.765273][ T254] ipv6_find_idev+0x102/0x170 [10101.765273][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10101.765273][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10101.765273][ T254] netlink_rcv_skb+0x130/0x360 [10101.765273][ T254] netlink_unicast+0x449/0x710 [10101.765273][ T254] netlink_sendmsg+0x723/0xbe0 [10101.765273][ T254] ____sys_sendmsg+0x7b2/0xa10 [10101.765273][ T254] ___sys_sendmsg+0xee/0x170 [10101.765273][ T254] __sys_sendmsg+0xcd/0x170 [10101.765273][ T254] do_syscall_64+0xc6/0x1e0 [10101.765273][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10101.765273][ T254] [10111.807849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10111.808317][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.808317][ T254] dst_init+0x84/0x4a0 [10111.808317][ T254] dst_alloc+0x97/0x150 [10111.808317][ T254] ip6_dst_alloc+0x23/0x90 [10111.808317][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10111.808317][ T254] ip6_pol_route+0x56f/0x840 [10111.808317][ T254] fib6_rule_lookup+0x334/0x630 [10111.808317][ T254] ip6_route_output_flags+0x259/0x480 [10111.808317][ T254] inet6_rtm_getroute+0x980/0xf70 [10111.808317][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10111.808317][ T254] netlink_rcv_skb+0x130/0x360 [10111.808317][ T254] netlink_unicast+0x449/0x710 [10111.808317][ T254] netlink_sendmsg+0x723/0xbe0 [10111.808317][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.808317][ T254] ___sys_sendmsg+0xee/0x170 [10111.808317][ T254] __sys_sendmsg+0xcd/0x170 [10111.808317][ T254] do_syscall_64+0xc6/0x1e0 [10111.808317][ T254] [10111.810575][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.810575][ T254] netdev_get_by_index+0x5e/0x80 [10111.810575][ T254] fib6_nh_init+0x3d8/0x1580 [10111.810575][ T254] ip6_route_info_create+0xf18/0x17d0 [10111.810575][ T254] addrconf_f6i_alloc+0x265/0x560 [10111.810575][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10111.810575][ T254] addrconf_join_anycast+0x1c0/0x220 [10111.810575][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10111.810575][ T254] addrconf_dad_completed+0x12b/0xe20 [10111.810575][ T254] addrconf_dad_begin+0x310/0x670 [10111.810575][ T254] addrconf_dad_work+0x10b/0xab0 [10111.810575][ T254] process_one_work+0x84d/0x18a0 [10111.810575][ T254] worker_thread+0x587/0xd30 [10111.810575][ T254] kthread+0x28a/0x350 [10111.810575][ T254] ret_from_fork+0x31/0x70 [10111.810575][ T254] ret_from_fork_asm+0x1a/0x30 [10111.810575][ T254] [10111.812785][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.812785][ T254] netdev_get_by_index+0x5e/0x80 [10111.812785][ T254] fib6_nh_init+0x3d8/0x1580 [10111.812785][ T254] ip6_route_info_create+0xf18/0x17d0 [10111.812785][ T254] ip6_route_add+0x1c/0x140 [10111.812785][ T254] addrconf_prefix_route+0x2a6/0x430 [10111.812785][ T254] inet6_addr_add+0x4f8/0xa40 [10111.812785][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10111.812785][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10111.812785][ T254] netlink_rcv_skb+0x130/0x360 [10111.812785][ T254] netlink_unicast+0x449/0x710 [10111.812785][ T254] netlink_sendmsg+0x723/0xbe0 [10111.812785][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.812785][ T254] ___sys_sendmsg+0xee/0x170 [10111.812785][ T254] __sys_sendmsg+0xcd/0x170 [10111.812785][ T254] do_syscall_64+0xc6/0x1e0 [10111.812785][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10111.812785][ T254] [10111.815075][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.815075][ T254] netdev_get_by_index+0x5e/0x80 [10111.815075][ T254] fib6_nh_init+0x3d8/0x1580 [10111.815075][ T254] ip6_route_info_create+0xf18/0x17d0 [10111.815075][ T254] addrconf_f6i_alloc+0x315/0x560 [10111.815075][ T254] ipv6_add_addr+0x411/0x2000 [10111.815075][ T254] inet6_addr_add+0x30e/0xa40 [10111.815075][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10111.815075][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10111.815075][ T254] netlink_rcv_skb+0x130/0x360 [10111.815075][ T254] netlink_unicast+0x449/0x710 [10111.815075][ T254] netlink_sendmsg+0x723/0xbe0 [10111.815075][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.815075][ T254] ___sys_sendmsg+0xee/0x170 [10111.815075][ T254] __sys_sendmsg+0xcd/0x170 [10111.815075][ T254] do_syscall_64+0xc6/0x1e0 [10111.815075][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10111.815075][ T254] [10111.817399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.817399][ T254] netdev_get_by_index+0x5e/0x80 [10111.817399][ T254] fib6_nh_init+0x3d8/0x1580 [10111.817399][ T254] ip6_route_info_create+0xf18/0x17d0 [10111.817399][ T254] ip6_route_add+0x1c/0x140 [10111.817399][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10111.817399][ T254] addrconf_add_dev+0xe2/0x170 [10111.817399][ T254] inet6_addr_add+0x12f/0xa40 [10111.817399][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10111.817399][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10111.817399][ T254] netlink_rcv_skb+0x130/0x360 [10111.817399][ T254] netlink_unicast+0x449/0x710 [10111.817399][ T254] netlink_sendmsg+0x723/0xbe0 [10111.817399][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.817399][ T254] ___sys_sendmsg+0xee/0x170 [10111.817399][ T254] __sys_sendmsg+0xcd/0x170 [10111.817399][ T254] do_syscall_64+0xc6/0x1e0 [10111.817399][ T254] [10111.819659][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.819659][ T254] ipv6_add_dev+0x3ba/0x11c0 [10111.819659][ T254] ipv6_find_idev+0x102/0x170 [10111.819659][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10111.819659][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10111.819659][ T254] netlink_rcv_skb+0x130/0x360 [10111.819659][ T254] netlink_unicast+0x449/0x710 [10111.819659][ T254] netlink_sendmsg+0x723/0xbe0 [10111.819659][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.819659][ T254] ___sys_sendmsg+0xee/0x170 [10111.819659][ T254] __sys_sendmsg+0xcd/0x170 [10111.819659][ T254] do_syscall_64+0xc6/0x1e0 [10111.819659][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10111.819659][ T254] [10111.821428][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10111.821428][ T254] neigh_parms_alloc+0x1e5/0x510 [10111.821428][ T254] ipv6_add_dev+0x2fe/0x11c0 [10111.821428][ T254] ipv6_find_idev+0x102/0x170 [10111.821428][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10111.821428][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10111.821428][ T254] netlink_rcv_skb+0x130/0x360 [10111.821428][ T254] netlink_unicast+0x449/0x710 [10111.821428][ T254] netlink_sendmsg+0x723/0xbe0 [10111.821428][ T254] ____sys_sendmsg+0x7b2/0xa10 [10111.821428][ T254] ___sys_sendmsg+0xee/0x170 [10111.821428][ T254] __sys_sendmsg+0xcd/0x170 [10111.821428][ T254] do_syscall_64+0xc6/0x1e0 [10111.821428][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10111.821428][ T254] [10122.063847][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10122.064399][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.064399][ T254] dst_init+0x84/0x4a0 [10122.064399][ T254] dst_alloc+0x97/0x150 [10122.064399][ T254] ip6_dst_alloc+0x23/0x90 [10122.064399][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10122.064399][ T254] ip6_pol_route+0x56f/0x840 [10122.064399][ T254] fib6_rule_lookup+0x334/0x630 [10122.064399][ T254] ip6_route_output_flags+0x259/0x480 [10122.064399][ T254] inet6_rtm_getroute+0x980/0xf70 [10122.064399][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10122.064399][ T254] netlink_rcv_skb+0x130/0x360 [10122.064399][ T254] netlink_unicast+0x449/0x710 [10122.064399][ T254] netlink_sendmsg+0x723/0xbe0 [10122.064399][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.064399][ T254] ___sys_sendmsg+0xee/0x170 [10122.064399][ T254] __sys_sendmsg+0xcd/0x170 [10122.064399][ T254] do_syscall_64+0xc6/0x1e0 [10122.064399][ T254] [10122.066665][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.066665][ T254] netdev_get_by_index+0x5e/0x80 [10122.066665][ T254] fib6_nh_init+0x3d8/0x1580 [10122.066665][ T254] ip6_route_info_create+0xf18/0x17d0 [10122.066665][ T254] addrconf_f6i_alloc+0x265/0x560 [10122.066665][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10122.066665][ T254] addrconf_join_anycast+0x1c0/0x220 [10122.066665][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10122.066665][ T254] addrconf_dad_completed+0x12b/0xe20 [10122.066665][ T254] addrconf_dad_begin+0x310/0x670 [10122.066665][ T254] addrconf_dad_work+0x10b/0xab0 [10122.066665][ T254] process_one_work+0x84d/0x18a0 [10122.066665][ T254] worker_thread+0x587/0xd30 [10122.066665][ T254] kthread+0x28a/0x350 [10122.066665][ T254] ret_from_fork+0x31/0x70 [10122.066665][ T254] ret_from_fork_asm+0x1a/0x30 [10122.066665][ T254] [10122.068863][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.068863][ T254] netdev_get_by_index+0x5e/0x80 [10122.068863][ T254] fib6_nh_init+0x3d8/0x1580 [10122.068863][ T254] ip6_route_info_create+0xf18/0x17d0 [10122.068863][ T254] ip6_route_add+0x1c/0x140 [10122.068863][ T254] addrconf_prefix_route+0x2a6/0x430 [10122.068863][ T254] inet6_addr_add+0x4f8/0xa40 [10122.068863][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10122.068863][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10122.068863][ T254] netlink_rcv_skb+0x130/0x360 [10122.068863][ T254] netlink_unicast+0x449/0x710 [10122.068863][ T254] netlink_sendmsg+0x723/0xbe0 [10122.068863][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.068863][ T254] ___sys_sendmsg+0xee/0x170 [10122.068863][ T254] __sys_sendmsg+0xcd/0x170 [10122.068863][ T254] do_syscall_64+0xc6/0x1e0 [10122.068863][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10122.068863][ T254] [10122.071164][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.071164][ T254] netdev_get_by_index+0x5e/0x80 [10122.071164][ T254] fib6_nh_init+0x3d8/0x1580 [10122.071164][ T254] ip6_route_info_create+0xf18/0x17d0 [10122.071164][ T254] addrconf_f6i_alloc+0x315/0x560 [10122.071164][ T254] ipv6_add_addr+0x411/0x2000 [10122.071164][ T254] inet6_addr_add+0x30e/0xa40 [10122.071164][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10122.071164][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10122.071164][ T254] netlink_rcv_skb+0x130/0x360 [10122.071164][ T254] netlink_unicast+0x449/0x710 [10122.071164][ T254] netlink_sendmsg+0x723/0xbe0 [10122.071164][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.071164][ T254] ___sys_sendmsg+0xee/0x170 [10122.071164][ T254] __sys_sendmsg+0xcd/0x170 [10122.071164][ T254] do_syscall_64+0xc6/0x1e0 [10122.071164][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10122.071164][ T254] [10122.073455][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.073455][ T254] netdev_get_by_index+0x5e/0x80 [10122.073455][ T254] fib6_nh_init+0x3d8/0x1580 [10122.073455][ T254] ip6_route_info_create+0xf18/0x17d0 [10122.073455][ T254] ip6_route_add+0x1c/0x140 [10122.073455][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10122.073455][ T254] addrconf_add_dev+0xe2/0x170 [10122.073455][ T254] inet6_addr_add+0x12f/0xa40 [10122.073455][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10122.073455][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10122.073455][ T254] netlink_rcv_skb+0x130/0x360 [10122.073455][ T254] netlink_unicast+0x449/0x710 [10122.073455][ T254] netlink_sendmsg+0x723/0xbe0 [10122.073455][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.073455][ T254] ___sys_sendmsg+0xee/0x170 [10122.073455][ T254] __sys_sendmsg+0xcd/0x170 [10122.073455][ T254] do_syscall_64+0xc6/0x1e0 [10122.073455][ T254] [10122.075722][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.075722][ T254] ipv6_add_dev+0x3ba/0x11c0 [10122.075722][ T254] ipv6_find_idev+0x102/0x170 [10122.075722][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10122.075722][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10122.075722][ T254] netlink_rcv_skb+0x130/0x360 [10122.075722][ T254] netlink_unicast+0x449/0x710 [10122.075722][ T254] netlink_sendmsg+0x723/0xbe0 [10122.075722][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.075722][ T254] ___sys_sendmsg+0xee/0x170 [10122.075722][ T254] __sys_sendmsg+0xcd/0x170 [10122.075722][ T254] do_syscall_64+0xc6/0x1e0 [10122.075722][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10122.075722][ T254] [10122.077486][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10122.077486][ T254] neigh_parms_alloc+0x1e5/0x510 [10122.077486][ T254] ipv6_add_dev+0x2fe/0x11c0 [10122.077486][ T254] ipv6_find_idev+0x102/0x170 [10122.077486][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10122.077486][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10122.077486][ T254] netlink_rcv_skb+0x130/0x360 [10122.077486][ T254] netlink_unicast+0x449/0x710 [10122.077486][ T254] netlink_sendmsg+0x723/0xbe0 [10122.077486][ T254] ____sys_sendmsg+0x7b2/0xa10 [10122.077486][ T254] ___sys_sendmsg+0xee/0x170 [10122.077486][ T254] __sys_sendmsg+0xcd/0x170 [10122.077486][ T254] do_syscall_64+0xc6/0x1e0 [10122.077486][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10122.077486][ T254] [10132.319860][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10132.320340][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.320340][ T254] dst_init+0x84/0x4a0 [10132.320340][ T254] dst_alloc+0x97/0x150 [10132.320340][ T254] ip6_dst_alloc+0x23/0x90 [10132.320340][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10132.320340][ T254] ip6_pol_route+0x56f/0x840 [10132.320340][ T254] fib6_rule_lookup+0x334/0x630 [10132.320340][ T254] ip6_route_output_flags+0x259/0x480 [10132.320340][ T254] inet6_rtm_getroute+0x980/0xf70 [10132.320340][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10132.320340][ T254] netlink_rcv_skb+0x130/0x360 [10132.320340][ T254] netlink_unicast+0x449/0x710 [10132.320340][ T254] netlink_sendmsg+0x723/0xbe0 [10132.320340][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.320340][ T254] ___sys_sendmsg+0xee/0x170 [10132.320340][ T254] __sys_sendmsg+0xcd/0x170 [10132.320340][ T254] do_syscall_64+0xc6/0x1e0 [10132.320340][ T254] [10132.322613][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.322613][ T254] netdev_get_by_index+0x5e/0x80 [10132.322613][ T254] fib6_nh_init+0x3d8/0x1580 [10132.322613][ T254] ip6_route_info_create+0xf18/0x17d0 [10132.322613][ T254] addrconf_f6i_alloc+0x265/0x560 [10132.322613][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10132.322613][ T254] addrconf_join_anycast+0x1c0/0x220 [10132.322613][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10132.322613][ T254] addrconf_dad_completed+0x12b/0xe20 [10132.322613][ T254] addrconf_dad_begin+0x310/0x670 [10132.322613][ T254] addrconf_dad_work+0x10b/0xab0 [10132.322613][ T254] process_one_work+0x84d/0x18a0 [10132.322613][ T254] worker_thread+0x587/0xd30 [10132.322613][ T254] kthread+0x28a/0x350 [10132.322613][ T254] ret_from_fork+0x31/0x70 [10132.322613][ T254] ret_from_fork_asm+0x1a/0x30 [10132.322613][ T254] [10132.324812][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.324812][ T254] netdev_get_by_index+0x5e/0x80 [10132.324812][ T254] fib6_nh_init+0x3d8/0x1580 [10132.324812][ T254] ip6_route_info_create+0xf18/0x17d0 [10132.324812][ T254] ip6_route_add+0x1c/0x140 [10132.324812][ T254] addrconf_prefix_route+0x2a6/0x430 [10132.324812][ T254] inet6_addr_add+0x4f8/0xa40 [10132.324812][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10132.324812][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10132.324812][ T254] netlink_rcv_skb+0x130/0x360 [10132.324812][ T254] netlink_unicast+0x449/0x710 [10132.324812][ T254] netlink_sendmsg+0x723/0xbe0 [10132.324812][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.324812][ T254] ___sys_sendmsg+0xee/0x170 [10132.324812][ T254] __sys_sendmsg+0xcd/0x170 [10132.324812][ T254] do_syscall_64+0xc6/0x1e0 [10132.324812][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10132.324812][ T254] [10132.327117][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.327117][ T254] netdev_get_by_index+0x5e/0x80 [10132.327117][ T254] fib6_nh_init+0x3d8/0x1580 [10132.327117][ T254] ip6_route_info_create+0xf18/0x17d0 [10132.327117][ T254] addrconf_f6i_alloc+0x315/0x560 [10132.327117][ T254] ipv6_add_addr+0x411/0x2000 [10132.327117][ T254] inet6_addr_add+0x30e/0xa40 [10132.327117][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10132.327117][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10132.327117][ T254] netlink_rcv_skb+0x130/0x360 [10132.327117][ T254] netlink_unicast+0x449/0x710 [10132.327117][ T254] netlink_sendmsg+0x723/0xbe0 [10132.327117][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.327117][ T254] ___sys_sendmsg+0xee/0x170 [10132.327117][ T254] __sys_sendmsg+0xcd/0x170 [10132.327117][ T254] do_syscall_64+0xc6/0x1e0 [10132.327117][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10132.327117][ T254] [10132.329411][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.329411][ T254] netdev_get_by_index+0x5e/0x80 [10132.329411][ T254] fib6_nh_init+0x3d8/0x1580 [10132.329411][ T254] ip6_route_info_create+0xf18/0x17d0 [10132.329411][ T254] ip6_route_add+0x1c/0x140 [10132.329411][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10132.329411][ T254] addrconf_add_dev+0xe2/0x170 [10132.329411][ T254] inet6_addr_add+0x12f/0xa40 [10132.329411][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10132.329411][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10132.329411][ T254] netlink_rcv_skb+0x130/0x360 [10132.329411][ T254] netlink_unicast+0x449/0x710 [10132.329411][ T254] netlink_sendmsg+0x723/0xbe0 [10132.329411][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.329411][ T254] ___sys_sendmsg+0xee/0x170 [10132.329411][ T254] __sys_sendmsg+0xcd/0x170 [10132.329411][ T254] do_syscall_64+0xc6/0x1e0 [10132.329411][ T254] [10132.331669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.331669][ T254] ipv6_add_dev+0x3ba/0x11c0 [10132.331669][ T254] ipv6_find_idev+0x102/0x170 [10132.331669][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10132.331669][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10132.331669][ T254] netlink_rcv_skb+0x130/0x360 [10132.331669][ T254] netlink_unicast+0x449/0x710 [10132.331669][ T254] netlink_sendmsg+0x723/0xbe0 [10132.331669][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.331669][ T254] ___sys_sendmsg+0xee/0x170 [10132.331669][ T254] __sys_sendmsg+0xcd/0x170 [10132.331669][ T254] do_syscall_64+0xc6/0x1e0 [10132.331669][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10132.331669][ T254] [10132.333439][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10132.333439][ T254] neigh_parms_alloc+0x1e5/0x510 [10132.333439][ T254] ipv6_add_dev+0x2fe/0x11c0 [10132.333439][ T254] ipv6_find_idev+0x102/0x170 [10132.333439][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10132.333439][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10132.333439][ T254] netlink_rcv_skb+0x130/0x360 [10132.333439][ T254] netlink_unicast+0x449/0x710 [10132.333439][ T254] netlink_sendmsg+0x723/0xbe0 [10132.333439][ T254] ____sys_sendmsg+0x7b2/0xa10 [10132.333439][ T254] ___sys_sendmsg+0xee/0x170 [10132.333439][ T254] __sys_sendmsg+0xcd/0x170 [10132.333439][ T254] do_syscall_64+0xc6/0x1e0 [10132.333439][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10132.333439][ T254] [10142.575848][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10142.576313][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.576313][ T254] dst_init+0x84/0x4a0 [10142.576313][ T254] dst_alloc+0x97/0x150 [10142.576313][ T254] ip6_dst_alloc+0x23/0x90 [10142.576313][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10142.576313][ T254] ip6_pol_route+0x56f/0x840 [10142.576313][ T254] fib6_rule_lookup+0x334/0x630 [10142.576313][ T254] ip6_route_output_flags+0x259/0x480 [10142.576313][ T254] inet6_rtm_getroute+0x980/0xf70 [10142.576313][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10142.576313][ T254] netlink_rcv_skb+0x130/0x360 [10142.576313][ T254] netlink_unicast+0x449/0x710 [10142.576313][ T254] netlink_sendmsg+0x723/0xbe0 [10142.576313][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.576313][ T254] ___sys_sendmsg+0xee/0x170 [10142.576313][ T254] __sys_sendmsg+0xcd/0x170 [10142.576313][ T254] do_syscall_64+0xc6/0x1e0 [10142.576313][ T254] [10142.578564][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.578564][ T254] netdev_get_by_index+0x5e/0x80 [10142.578564][ T254] fib6_nh_init+0x3d8/0x1580 [10142.578564][ T254] ip6_route_info_create+0xf18/0x17d0 [10142.578564][ T254] addrconf_f6i_alloc+0x265/0x560 [10142.578564][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10142.578564][ T254] addrconf_join_anycast+0x1c0/0x220 [10142.578564][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10142.578564][ T254] addrconf_dad_completed+0x12b/0xe20 [10142.578564][ T254] addrconf_dad_begin+0x310/0x670 [10142.578564][ T254] addrconf_dad_work+0x10b/0xab0 [10142.578564][ T254] process_one_work+0x84d/0x18a0 [10142.578564][ T254] worker_thread+0x587/0xd30 [10142.578564][ T254] kthread+0x28a/0x350 [10142.578564][ T254] ret_from_fork+0x31/0x70 [10142.578564][ T254] ret_from_fork_asm+0x1a/0x30 [10142.578564][ T254] [10142.580796][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.580796][ T254] netdev_get_by_index+0x5e/0x80 [10142.580796][ T254] fib6_nh_init+0x3d8/0x1580 [10142.580796][ T254] ip6_route_info_create+0xf18/0x17d0 [10142.580796][ T254] ip6_route_add+0x1c/0x140 [10142.580796][ T254] addrconf_prefix_route+0x2a6/0x430 [10142.580796][ T254] inet6_addr_add+0x4f8/0xa40 [10142.580796][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10142.580796][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10142.580796][ T254] netlink_rcv_skb+0x130/0x360 [10142.580796][ T254] netlink_unicast+0x449/0x710 [10142.580796][ T254] netlink_sendmsg+0x723/0xbe0 [10142.580796][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.580796][ T254] ___sys_sendmsg+0xee/0x170 [10142.580796][ T254] __sys_sendmsg+0xcd/0x170 [10142.580796][ T254] do_syscall_64+0xc6/0x1e0 [10142.580796][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10142.580796][ T254] [10142.583093][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.583093][ T254] netdev_get_by_index+0x5e/0x80 [10142.583093][ T254] fib6_nh_init+0x3d8/0x1580 [10142.583093][ T254] ip6_route_info_create+0xf18/0x17d0 [10142.583093][ T254] addrconf_f6i_alloc+0x315/0x560 [10142.583093][ T254] ipv6_add_addr+0x411/0x2000 [10142.583093][ T254] inet6_addr_add+0x30e/0xa40 [10142.583093][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10142.583093][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10142.583093][ T254] netlink_rcv_skb+0x130/0x360 [10142.583093][ T254] netlink_unicast+0x449/0x710 [10142.583093][ T254] netlink_sendmsg+0x723/0xbe0 [10142.583093][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.583093][ T254] ___sys_sendmsg+0xee/0x170 [10142.583093][ T254] __sys_sendmsg+0xcd/0x170 [10142.583093][ T254] do_syscall_64+0xc6/0x1e0 [10142.583093][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10142.583093][ T254] [10142.585392][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.585392][ T254] netdev_get_by_index+0x5e/0x80 [10142.585392][ T254] fib6_nh_init+0x3d8/0x1580 [10142.585392][ T254] ip6_route_info_create+0xf18/0x17d0 [10142.585392][ T254] ip6_route_add+0x1c/0x140 [10142.585392][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10142.585392][ T254] addrconf_add_dev+0xe2/0x170 [10142.585392][ T254] inet6_addr_add+0x12f/0xa40 [10142.585392][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10142.585392][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10142.585392][ T254] netlink_rcv_skb+0x130/0x360 [10142.585392][ T254] netlink_unicast+0x449/0x710 [10142.585392][ T254] netlink_sendmsg+0x723/0xbe0 [10142.585392][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.585392][ T254] ___sys_sendmsg+0xee/0x170 [10142.585392][ T254] __sys_sendmsg+0xcd/0x170 [10142.585392][ T254] do_syscall_64+0xc6/0x1e0 [10142.585392][ T254] [10142.587642][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.587642][ T254] ipv6_add_dev+0x3ba/0x11c0 [10142.587642][ T254] ipv6_find_idev+0x102/0x170 [10142.587642][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10142.587642][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10142.587642][ T254] netlink_rcv_skb+0x130/0x360 [10142.587642][ T254] netlink_unicast+0x449/0x710 [10142.587642][ T254] netlink_sendmsg+0x723/0xbe0 [10142.587642][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.587642][ T254] ___sys_sendmsg+0xee/0x170 [10142.587642][ T254] __sys_sendmsg+0xcd/0x170 [10142.587642][ T254] do_syscall_64+0xc6/0x1e0 [10142.587642][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10142.587642][ T254] [10142.589413][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10142.589413][ T254] neigh_parms_alloc+0x1e5/0x510 [10142.589413][ T254] ipv6_add_dev+0x2fe/0x11c0 [10142.589413][ T254] ipv6_find_idev+0x102/0x170 [10142.589413][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10142.589413][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10142.589413][ T254] netlink_rcv_skb+0x130/0x360 [10142.589413][ T254] netlink_unicast+0x449/0x710 [10142.589413][ T254] netlink_sendmsg+0x723/0xbe0 [10142.589413][ T254] ____sys_sendmsg+0x7b2/0xa10 [10142.589413][ T254] ___sys_sendmsg+0xee/0x170 [10142.589413][ T254] __sys_sendmsg+0xcd/0x170 [10142.589413][ T254] do_syscall_64+0xc6/0x1e0 [10142.589413][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10142.589413][ T254] [10152.831849][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10152.832372][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.832372][ T254] dst_init+0x84/0x4a0 [10152.832372][ T254] dst_alloc+0x97/0x150 [10152.832372][ T254] ip6_dst_alloc+0x23/0x90 [10152.832372][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10152.832372][ T254] ip6_pol_route+0x56f/0x840 [10152.832372][ T254] fib6_rule_lookup+0x334/0x630 [10152.832372][ T254] ip6_route_output_flags+0x259/0x480 [10152.832372][ T254] inet6_rtm_getroute+0x980/0xf70 [10152.832372][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10152.832372][ T254] netlink_rcv_skb+0x130/0x360 [10152.832372][ T254] netlink_unicast+0x449/0x710 [10152.832372][ T254] netlink_sendmsg+0x723/0xbe0 [10152.832372][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.832372][ T254] ___sys_sendmsg+0xee/0x170 [10152.832372][ T254] __sys_sendmsg+0xcd/0x170 [10152.832372][ T254] do_syscall_64+0xc6/0x1e0 [10152.832372][ T254] [10152.834645][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.834645][ T254] netdev_get_by_index+0x5e/0x80 [10152.834645][ T254] fib6_nh_init+0x3d8/0x1580 [10152.834645][ T254] ip6_route_info_create+0xf18/0x17d0 [10152.834645][ T254] addrconf_f6i_alloc+0x265/0x560 [10152.834645][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10152.834645][ T254] addrconf_join_anycast+0x1c0/0x220 [10152.834645][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10152.834645][ T254] addrconf_dad_completed+0x12b/0xe20 [10152.834645][ T254] addrconf_dad_begin+0x310/0x670 [10152.834645][ T254] addrconf_dad_work+0x10b/0xab0 [10152.834645][ T254] process_one_work+0x84d/0x18a0 [10152.834645][ T254] worker_thread+0x587/0xd30 [10152.834645][ T254] kthread+0x28a/0x350 [10152.834645][ T254] ret_from_fork+0x31/0x70 [10152.834645][ T254] ret_from_fork_asm+0x1a/0x30 [10152.834645][ T254] [10152.836844][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.836844][ T254] netdev_get_by_index+0x5e/0x80 [10152.836844][ T254] fib6_nh_init+0x3d8/0x1580 [10152.836844][ T254] ip6_route_info_create+0xf18/0x17d0 [10152.836844][ T254] ip6_route_add+0x1c/0x140 [10152.836844][ T254] addrconf_prefix_route+0x2a6/0x430 [10152.836844][ T254] inet6_addr_add+0x4f8/0xa40 [10152.836844][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10152.836844][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10152.836844][ T254] netlink_rcv_skb+0x130/0x360 [10152.836844][ T254] netlink_unicast+0x449/0x710 [10152.836844][ T254] netlink_sendmsg+0x723/0xbe0 [10152.836844][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.836844][ T254] ___sys_sendmsg+0xee/0x170 [10152.836844][ T254] __sys_sendmsg+0xcd/0x170 [10152.836844][ T254] do_syscall_64+0xc6/0x1e0 [10152.836844][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10152.836844][ T254] [10152.839137][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.839137][ T254] netdev_get_by_index+0x5e/0x80 [10152.839137][ T254] fib6_nh_init+0x3d8/0x1580 [10152.839137][ T254] ip6_route_info_create+0xf18/0x17d0 [10152.839137][ T254] addrconf_f6i_alloc+0x315/0x560 [10152.839137][ T254] ipv6_add_addr+0x411/0x2000 [10152.839137][ T254] inet6_addr_add+0x30e/0xa40 [10152.839137][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10152.839137][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10152.839137][ T254] netlink_rcv_skb+0x130/0x360 [10152.839137][ T254] netlink_unicast+0x449/0x710 [10152.839137][ T254] netlink_sendmsg+0x723/0xbe0 [10152.839137][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.839137][ T254] ___sys_sendmsg+0xee/0x170 [10152.839137][ T254] __sys_sendmsg+0xcd/0x170 [10152.839137][ T254] do_syscall_64+0xc6/0x1e0 [10152.839137][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10152.839137][ T254] [10152.841437][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.841437][ T254] netdev_get_by_index+0x5e/0x80 [10152.841437][ T254] fib6_nh_init+0x3d8/0x1580 [10152.841437][ T254] ip6_route_info_create+0xf18/0x17d0 [10152.841437][ T254] ip6_route_add+0x1c/0x140 [10152.841437][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10152.841437][ T254] addrconf_add_dev+0xe2/0x170 [10152.841437][ T254] inet6_addr_add+0x12f/0xa40 [10152.841437][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10152.841437][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10152.841437][ T254] netlink_rcv_skb+0x130/0x360 [10152.841437][ T254] netlink_unicast+0x449/0x710 [10152.841437][ T254] netlink_sendmsg+0x723/0xbe0 [10152.841437][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.841437][ T254] ___sys_sendmsg+0xee/0x170 [10152.841437][ T254] __sys_sendmsg+0xcd/0x170 [10152.841437][ T254] do_syscall_64+0xc6/0x1e0 [10152.841437][ T254] [10152.843692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.843692][ T254] ipv6_add_dev+0x3ba/0x11c0 [10152.843692][ T254] ipv6_find_idev+0x102/0x170 [10152.843692][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10152.843692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10152.843692][ T254] netlink_rcv_skb+0x130/0x360 [10152.843692][ T254] netlink_unicast+0x449/0x710 [10152.843692][ T254] netlink_sendmsg+0x723/0xbe0 [10152.843692][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.843692][ T254] ___sys_sendmsg+0xee/0x170 [10152.843692][ T254] __sys_sendmsg+0xcd/0x170 [10152.843692][ T254] do_syscall_64+0xc6/0x1e0 [10152.843692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10152.843692][ T254] [10152.845456][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10152.845456][ T254] neigh_parms_alloc+0x1e5/0x510 [10152.845456][ T254] ipv6_add_dev+0x2fe/0x11c0 [10152.845456][ T254] ipv6_find_idev+0x102/0x170 [10152.845456][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10152.845456][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10152.845456][ T254] netlink_rcv_skb+0x130/0x360 [10152.845456][ T254] netlink_unicast+0x449/0x710 [10152.845456][ T254] netlink_sendmsg+0x723/0xbe0 [10152.845456][ T254] ____sys_sendmsg+0x7b2/0xa10 [10152.845456][ T254] ___sys_sendmsg+0xee/0x170 [10152.845456][ T254] __sys_sendmsg+0xcd/0x170 [10152.845456][ T254] do_syscall_64+0xc6/0x1e0 [10152.845456][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10152.845456][ T254] [10163.095885][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10163.096424][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.096424][ T254] dst_init+0x84/0x4a0 [10163.096424][ T254] dst_alloc+0x97/0x150 [10163.096424][ T254] ip6_dst_alloc+0x23/0x90 [10163.096424][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10163.096424][ T254] ip6_pol_route+0x56f/0x840 [10163.096424][ T254] fib6_rule_lookup+0x334/0x630 [10163.096424][ T254] ip6_route_output_flags+0x259/0x480 [10163.096424][ T254] inet6_rtm_getroute+0x980/0xf70 [10163.096424][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10163.096424][ T254] netlink_rcv_skb+0x130/0x360 [10163.096424][ T254] netlink_unicast+0x449/0x710 [10163.096424][ T254] netlink_sendmsg+0x723/0xbe0 [10163.096424][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.096424][ T254] ___sys_sendmsg+0xee/0x170 [10163.096424][ T254] __sys_sendmsg+0xcd/0x170 [10163.096424][ T254] do_syscall_64+0xc6/0x1e0 [10163.096424][ T254] [10163.099230][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.099230][ T254] netdev_get_by_index+0x5e/0x80 [10163.099230][ T254] fib6_nh_init+0x3d8/0x1580 [10163.099230][ T254] ip6_route_info_create+0xf18/0x17d0 [10163.099230][ T254] addrconf_f6i_alloc+0x265/0x560 [10163.099230][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10163.099230][ T254] addrconf_join_anycast+0x1c0/0x220 [10163.099230][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10163.099230][ T254] addrconf_dad_completed+0x12b/0xe20 [10163.099230][ T254] addrconf_dad_begin+0x310/0x670 [10163.099230][ T254] addrconf_dad_work+0x10b/0xab0 [10163.099230][ T254] process_one_work+0x84d/0x18a0 [10163.099230][ T254] worker_thread+0x587/0xd30 [10163.099230][ T254] kthread+0x28a/0x350 [10163.099230][ T254] ret_from_fork+0x31/0x70 [10163.099230][ T254] ret_from_fork_asm+0x1a/0x30 [10163.099230][ T254] [10163.101446][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.101446][ T254] netdev_get_by_index+0x5e/0x80 [10163.101446][ T254] fib6_nh_init+0x3d8/0x1580 [10163.101446][ T254] ip6_route_info_create+0xf18/0x17d0 [10163.101446][ T254] ip6_route_add+0x1c/0x140 [10163.101446][ T254] addrconf_prefix_route+0x2a6/0x430 [10163.101446][ T254] inet6_addr_add+0x4f8/0xa40 [10163.101446][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10163.101446][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10163.101446][ T254] netlink_rcv_skb+0x130/0x360 [10163.101446][ T254] netlink_unicast+0x449/0x710 [10163.101446][ T254] netlink_sendmsg+0x723/0xbe0 [10163.101446][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.101446][ T254] ___sys_sendmsg+0xee/0x170 [10163.101446][ T254] __sys_sendmsg+0xcd/0x170 [10163.101446][ T254] do_syscall_64+0xc6/0x1e0 [10163.101446][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10163.101446][ T254] [10163.103741][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.103741][ T254] netdev_get_by_index+0x5e/0x80 [10163.103741][ T254] fib6_nh_init+0x3d8/0x1580 [10163.103741][ T254] ip6_route_info_create+0xf18/0x17d0 [10163.103741][ T254] addrconf_f6i_alloc+0x315/0x560 [10163.103741][ T254] ipv6_add_addr+0x411/0x2000 [10163.103741][ T254] inet6_addr_add+0x30e/0xa40 [10163.103741][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10163.103741][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10163.103741][ T254] netlink_rcv_skb+0x130/0x360 [10163.103741][ T254] netlink_unicast+0x449/0x710 [10163.103741][ T254] netlink_sendmsg+0x723/0xbe0 [10163.103741][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.103741][ T254] ___sys_sendmsg+0xee/0x170 [10163.103741][ T254] __sys_sendmsg+0xcd/0x170 [10163.103741][ T254] do_syscall_64+0xc6/0x1e0 [10163.103741][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10163.103741][ T254] [10163.106035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.106035][ T254] netdev_get_by_index+0x5e/0x80 [10163.106035][ T254] fib6_nh_init+0x3d8/0x1580 [10163.106035][ T254] ip6_route_info_create+0xf18/0x17d0 [10163.106035][ T254] ip6_route_add+0x1c/0x140 [10163.106035][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10163.106035][ T254] addrconf_add_dev+0xe2/0x170 [10163.106035][ T254] inet6_addr_add+0x12f/0xa40 [10163.106035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10163.106035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10163.106035][ T254] netlink_rcv_skb+0x130/0x360 [10163.106035][ T254] netlink_unicast+0x449/0x710 [10163.106035][ T254] netlink_sendmsg+0x723/0xbe0 [10163.106035][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.106035][ T254] ___sys_sendmsg+0xee/0x170 [10163.106035][ T254] __sys_sendmsg+0xcd/0x170 [10163.106035][ T254] do_syscall_64+0xc6/0x1e0 [10163.106035][ T254] [10163.108289][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.108289][ T254] ipv6_add_dev+0x3ba/0x11c0 [10163.108289][ T254] ipv6_find_idev+0x102/0x170 [10163.108289][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10163.108289][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10163.108289][ T254] netlink_rcv_skb+0x130/0x360 [10163.108289][ T254] netlink_unicast+0x449/0x710 [10163.108289][ T254] netlink_sendmsg+0x723/0xbe0 [10163.108289][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.108289][ T254] ___sys_sendmsg+0xee/0x170 [10163.108289][ T254] __sys_sendmsg+0xcd/0x170 [10163.108289][ T254] do_syscall_64+0xc6/0x1e0 [10163.108289][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10163.108289][ T254] [10163.110058][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10163.110058][ T254] neigh_parms_alloc+0x1e5/0x510 [10163.110058][ T254] ipv6_add_dev+0x2fe/0x11c0 [10163.110058][ T254] ipv6_find_idev+0x102/0x170 [10163.110058][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10163.110058][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10163.110058][ T254] netlink_rcv_skb+0x130/0x360 [10163.110058][ T254] netlink_unicast+0x449/0x710 [10163.110058][ T254] netlink_sendmsg+0x723/0xbe0 [10163.110058][ T254] ____sys_sendmsg+0x7b2/0xa10 [10163.110058][ T254] ___sys_sendmsg+0xee/0x170 [10163.110058][ T254] __sys_sendmsg+0xcd/0x170 [10163.110058][ T254] do_syscall_64+0xc6/0x1e0 [10163.110058][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10163.110058][ T254] [10173.359870][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10173.360415][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.360415][ T254] dst_init+0x84/0x4a0 [10173.360415][ T254] dst_alloc+0x97/0x150 [10173.360415][ T254] ip6_dst_alloc+0x23/0x90 [10173.360415][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10173.360415][ T254] ip6_pol_route+0x56f/0x840 [10173.360415][ T254] fib6_rule_lookup+0x334/0x630 [10173.360415][ T254] ip6_route_output_flags+0x259/0x480 [10173.360415][ T254] inet6_rtm_getroute+0x980/0xf70 [10173.360415][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10173.360415][ T254] netlink_rcv_skb+0x130/0x360 [10173.360415][ T254] netlink_unicast+0x449/0x710 [10173.360415][ T254] netlink_sendmsg+0x723/0xbe0 [10173.360415][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.360415][ T254] ___sys_sendmsg+0xee/0x170 [10173.360415][ T254] __sys_sendmsg+0xcd/0x170 [10173.360415][ T254] do_syscall_64+0xc6/0x1e0 [10173.360415][ T254] [10173.362695][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.362695][ T254] netdev_get_by_index+0x5e/0x80 [10173.362695][ T254] fib6_nh_init+0x3d8/0x1580 [10173.362695][ T254] ip6_route_info_create+0xf18/0x17d0 [10173.362695][ T254] addrconf_f6i_alloc+0x265/0x560 [10173.362695][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10173.362695][ T254] addrconf_join_anycast+0x1c0/0x220 [10173.362695][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10173.362695][ T254] addrconf_dad_completed+0x12b/0xe20 [10173.362695][ T254] addrconf_dad_begin+0x310/0x670 [10173.362695][ T254] addrconf_dad_work+0x10b/0xab0 [10173.362695][ T254] process_one_work+0x84d/0x18a0 [10173.362695][ T254] worker_thread+0x587/0xd30 [10173.362695][ T254] kthread+0x28a/0x350 [10173.362695][ T254] ret_from_fork+0x31/0x70 [10173.362695][ T254] ret_from_fork_asm+0x1a/0x30 [10173.362695][ T254] [10173.364886][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.364886][ T254] netdev_get_by_index+0x5e/0x80 [10173.364886][ T254] fib6_nh_init+0x3d8/0x1580 [10173.364886][ T254] ip6_route_info_create+0xf18/0x17d0 [10173.364886][ T254] ip6_route_add+0x1c/0x140 [10173.364886][ T254] addrconf_prefix_route+0x2a6/0x430 [10173.364886][ T254] inet6_addr_add+0x4f8/0xa40 [10173.364886][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10173.364886][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10173.364886][ T254] netlink_rcv_skb+0x130/0x360 [10173.364886][ T254] netlink_unicast+0x449/0x710 [10173.364886][ T254] netlink_sendmsg+0x723/0xbe0 [10173.364886][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.364886][ T254] ___sys_sendmsg+0xee/0x170 [10173.364886][ T254] __sys_sendmsg+0xcd/0x170 [10173.364886][ T254] do_syscall_64+0xc6/0x1e0 [10173.364886][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10173.364886][ T254] [10173.367178][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.367178][ T254] netdev_get_by_index+0x5e/0x80 [10173.367178][ T254] fib6_nh_init+0x3d8/0x1580 [10173.367178][ T254] ip6_route_info_create+0xf18/0x17d0 [10173.367178][ T254] addrconf_f6i_alloc+0x315/0x560 [10173.367178][ T254] ipv6_add_addr+0x411/0x2000 [10173.367178][ T254] inet6_addr_add+0x30e/0xa40 [10173.367178][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10173.367178][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10173.367178][ T254] netlink_rcv_skb+0x130/0x360 [10173.367178][ T254] netlink_unicast+0x449/0x710 [10173.367178][ T254] netlink_sendmsg+0x723/0xbe0 [10173.367178][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.367178][ T254] ___sys_sendmsg+0xee/0x170 [10173.367178][ T254] __sys_sendmsg+0xcd/0x170 [10173.367178][ T254] do_syscall_64+0xc6/0x1e0 [10173.367178][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10173.367178][ T254] [10173.369471][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.369471][ T254] netdev_get_by_index+0x5e/0x80 [10173.369471][ T254] fib6_nh_init+0x3d8/0x1580 [10173.369471][ T254] ip6_route_info_create+0xf18/0x17d0 [10173.369471][ T254] ip6_route_add+0x1c/0x140 [10173.369471][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10173.369471][ T254] addrconf_add_dev+0xe2/0x170 [10173.369471][ T254] inet6_addr_add+0x12f/0xa40 [10173.369471][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10173.369471][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10173.369471][ T254] netlink_rcv_skb+0x130/0x360 [10173.369471][ T254] netlink_unicast+0x449/0x710 [10173.369471][ T254] netlink_sendmsg+0x723/0xbe0 [10173.369471][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.369471][ T254] ___sys_sendmsg+0xee/0x170 [10173.369471][ T254] __sys_sendmsg+0xcd/0x170 [10173.369471][ T254] do_syscall_64+0xc6/0x1e0 [10173.369471][ T254] [10173.371730][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.371730][ T254] ipv6_add_dev+0x3ba/0x11c0 [10173.371730][ T254] ipv6_find_idev+0x102/0x170 [10173.371730][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10173.371730][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10173.371730][ T254] netlink_rcv_skb+0x130/0x360 [10173.371730][ T254] netlink_unicast+0x449/0x710 [10173.371730][ T254] netlink_sendmsg+0x723/0xbe0 [10173.371730][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.371730][ T254] ___sys_sendmsg+0xee/0x170 [10173.371730][ T254] __sys_sendmsg+0xcd/0x170 [10173.371730][ T254] do_syscall_64+0xc6/0x1e0 [10173.371730][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10173.371730][ T254] [10173.373489][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10173.373489][ T254] neigh_parms_alloc+0x1e5/0x510 [10173.373489][ T254] ipv6_add_dev+0x2fe/0x11c0 [10173.373489][ T254] ipv6_find_idev+0x102/0x170 [10173.373489][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10173.373489][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10173.373489][ T254] netlink_rcv_skb+0x130/0x360 [10173.373489][ T254] netlink_unicast+0x449/0x710 [10173.373489][ T254] netlink_sendmsg+0x723/0xbe0 [10173.373489][ T254] ____sys_sendmsg+0x7b2/0xa10 [10173.373489][ T254] ___sys_sendmsg+0xee/0x170 [10173.373489][ T254] __sys_sendmsg+0xcd/0x170 [10173.373489][ T254] do_syscall_64+0xc6/0x1e0 [10173.373489][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10173.373489][ T254] [10183.583991][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10183.596985][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.596985][ T254] dst_init+0x84/0x4a0 [10183.596985][ T254] dst_alloc+0x97/0x150 [10183.596985][ T254] ip6_dst_alloc+0x23/0x90 [10183.596985][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10183.596985][ T254] ip6_pol_route+0x56f/0x840 [10183.596985][ T254] fib6_rule_lookup+0x334/0x630 [10183.596985][ T254] ip6_route_output_flags+0x259/0x480 [10183.596985][ T254] inet6_rtm_getroute+0x980/0xf70 [10183.596985][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10183.596985][ T254] netlink_rcv_skb+0x130/0x360 [10183.596985][ T254] netlink_unicast+0x449/0x710 [10183.596985][ T254] netlink_sendmsg+0x723/0xbe0 [10183.596985][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.596985][ T254] ___sys_sendmsg+0xee/0x170 [10183.596985][ T254] __sys_sendmsg+0xcd/0x170 [10183.596985][ T254] do_syscall_64+0xc6/0x1e0 [10183.596985][ T254] [10183.602001][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.602001][ T254] netdev_get_by_index+0x5e/0x80 [10183.602001][ T254] fib6_nh_init+0x3d8/0x1580 [10183.602001][ T254] ip6_route_info_create+0xf18/0x17d0 [10183.602001][ T254] addrconf_f6i_alloc+0x265/0x560 [10183.602001][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10183.602001][ T254] addrconf_join_anycast+0x1c0/0x220 [10183.602001][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10183.602001][ T254] addrconf_dad_completed+0x12b/0xe20 [10183.602001][ T254] addrconf_dad_begin+0x310/0x670 [10183.602001][ T254] addrconf_dad_work+0x10b/0xab0 [10183.602001][ T254] process_one_work+0x84d/0x18a0 [10183.602001][ T254] worker_thread+0x587/0xd30 [10183.602001][ T254] kthread+0x28a/0x350 [10183.602001][ T254] ret_from_fork+0x31/0x70 [10183.602001][ T254] ret_from_fork_asm+0x1a/0x30 [10183.602001][ T254] [10183.606717][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.606717][ T254] netdev_get_by_index+0x5e/0x80 [10183.606717][ T254] fib6_nh_init+0x3d8/0x1580 [10183.606717][ T254] ip6_route_info_create+0xf18/0x17d0 [10183.606717][ T254] ip6_route_add+0x1c/0x140 [10183.606717][ T254] addrconf_prefix_route+0x2a6/0x430 [10183.606717][ T254] inet6_addr_add+0x4f8/0xa40 [10183.606717][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10183.606717][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10183.606717][ T254] netlink_rcv_skb+0x130/0x360 [10183.606717][ T254] netlink_unicast+0x449/0x710 [10183.606717][ T254] netlink_sendmsg+0x723/0xbe0 [10183.606717][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.606717][ T254] ___sys_sendmsg+0xee/0x170 [10183.606717][ T254] __sys_sendmsg+0xcd/0x170 [10183.606717][ T254] do_syscall_64+0xc6/0x1e0 [10183.606717][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10183.606717][ T254] [10183.610959][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.610959][ T254] netdev_get_by_index+0x5e/0x80 [10183.610959][ T254] fib6_nh_init+0x3d8/0x1580 [10183.610959][ T254] ip6_route_info_create+0xf18/0x17d0 [10183.610959][ T254] addrconf_f6i_alloc+0x315/0x560 [10183.610959][ T254] ipv6_add_addr+0x411/0x2000 [10183.610959][ T254] inet6_addr_add+0x30e/0xa40 [10183.610959][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10183.610959][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10183.610959][ T254] netlink_rcv_skb+0x130/0x360 [10183.610959][ T254] netlink_unicast+0x449/0x710 [10183.610959][ T254] netlink_sendmsg+0x723/0xbe0 [10183.610959][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.610959][ T254] ___sys_sendmsg+0xee/0x170 [10183.610959][ T254] __sys_sendmsg+0xcd/0x170 [10183.610959][ T254] do_syscall_64+0xc6/0x1e0 [10183.610959][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10183.610959][ T254] [10183.617865][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.617865][ T254] netdev_get_by_index+0x5e/0x80 [10183.617865][ T254] fib6_nh_init+0x3d8/0x1580 [10183.617865][ T254] ip6_route_info_create+0xf18/0x17d0 [10183.617865][ T254] ip6_route_add+0x1c/0x140 [10183.617865][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10183.617865][ T254] addrconf_add_dev+0xe2/0x170 [10183.617865][ T254] inet6_addr_add+0x12f/0xa40 [10183.617865][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10183.617865][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10183.617865][ T254] netlink_rcv_skb+0x130/0x360 [10183.617865][ T254] netlink_unicast+0x449/0x710 [10183.617865][ T254] netlink_sendmsg+0x723/0xbe0 [10183.617865][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.617865][ T254] ___sys_sendmsg+0xee/0x170 [10183.617865][ T254] __sys_sendmsg+0xcd/0x170 [10183.617865][ T254] do_syscall_64+0xc6/0x1e0 [10183.617865][ T254] [10183.622861][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.622861][ T254] ipv6_add_dev+0x3ba/0x11c0 [10183.622861][ T254] ipv6_find_idev+0x102/0x170 [10183.622861][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10183.622861][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10183.622861][ T254] netlink_rcv_skb+0x130/0x360 [10183.622861][ T254] netlink_unicast+0x449/0x710 [10183.622861][ T254] netlink_sendmsg+0x723/0xbe0 [10183.622861][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.622861][ T254] ___sys_sendmsg+0xee/0x170 [10183.622861][ T254] __sys_sendmsg+0xcd/0x170 [10183.622861][ T254] do_syscall_64+0xc6/0x1e0 [10183.622861][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10183.622861][ T254] [10183.626707][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10183.626707][ T254] neigh_parms_alloc+0x1e5/0x510 [10183.626707][ T254] ipv6_add_dev+0x2fe/0x11c0 [10183.626707][ T254] ipv6_find_idev+0x102/0x170 [10183.626707][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10183.626707][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10183.626707][ T254] netlink_rcv_skb+0x130/0x360 [10183.626707][ T254] netlink_unicast+0x449/0x710 [10183.626707][ T254] netlink_sendmsg+0x723/0xbe0 [10183.626707][ T254] ____sys_sendmsg+0x7b2/0xa10 [10183.626707][ T254] ___sys_sendmsg+0xee/0x170 [10183.626707][ T254] __sys_sendmsg+0xcd/0x170 [10183.626707][ T254] do_syscall_64+0xc6/0x1e0 [10183.626707][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10183.626707][ T254] [10193.871890][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10193.872669][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.872669][ T254] dst_init+0x84/0x4a0 [10193.872669][ T254] dst_alloc+0x97/0x150 [10193.872669][ T254] ip6_dst_alloc+0x23/0x90 [10193.872669][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10193.872669][ T254] ip6_pol_route+0x56f/0x840 [10193.872669][ T254] fib6_rule_lookup+0x334/0x630 [10193.872669][ T254] ip6_route_output_flags+0x259/0x480 [10193.872669][ T254] inet6_rtm_getroute+0x980/0xf70 [10193.872669][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10193.872669][ T254] netlink_rcv_skb+0x130/0x360 [10193.872669][ T254] netlink_unicast+0x449/0x710 [10193.872669][ T254] netlink_sendmsg+0x723/0xbe0 [10193.872669][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.872669][ T254] ___sys_sendmsg+0xee/0x170 [10193.872669][ T254] __sys_sendmsg+0xcd/0x170 [10193.872669][ T254] do_syscall_64+0xc6/0x1e0 [10193.872669][ T254] [10193.876710][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.876710][ T254] netdev_get_by_index+0x5e/0x80 [10193.876710][ T254] fib6_nh_init+0x3d8/0x1580 [10193.876710][ T254] ip6_route_info_create+0xf18/0x17d0 [10193.876710][ T254] addrconf_f6i_alloc+0x265/0x560 [10193.876710][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10193.876710][ T254] addrconf_join_anycast+0x1c0/0x220 [10193.876710][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10193.876710][ T254] addrconf_dad_completed+0x12b/0xe20 [10193.876710][ T254] addrconf_dad_begin+0x310/0x670 [10193.876710][ T254] addrconf_dad_work+0x10b/0xab0 [10193.876710][ T254] process_one_work+0x84d/0x18a0 [10193.876710][ T254] worker_thread+0x587/0xd30 [10193.876710][ T254] kthread+0x28a/0x350 [10193.876710][ T254] ret_from_fork+0x31/0x70 [10193.876710][ T254] ret_from_fork_asm+0x1a/0x30 [10193.876710][ T254] [10193.881035][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.881035][ T254] netdev_get_by_index+0x5e/0x80 [10193.881035][ T254] fib6_nh_init+0x3d8/0x1580 [10193.881035][ T254] ip6_route_info_create+0xf18/0x17d0 [10193.881035][ T254] ip6_route_add+0x1c/0x140 [10193.881035][ T254] addrconf_prefix_route+0x2a6/0x430 [10193.881035][ T254] inet6_addr_add+0x4f8/0xa40 [10193.881035][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10193.881035][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10193.881035][ T254] netlink_rcv_skb+0x130/0x360 [10193.881035][ T254] netlink_unicast+0x449/0x710 [10193.881035][ T254] netlink_sendmsg+0x723/0xbe0 [10193.881035][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.881035][ T254] ___sys_sendmsg+0xee/0x170 [10193.881035][ T254] __sys_sendmsg+0xcd/0x170 [10193.881035][ T254] do_syscall_64+0xc6/0x1e0 [10193.881035][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10193.881035][ T254] [10193.885179][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.885179][ T254] netdev_get_by_index+0x5e/0x80 [10193.885179][ T254] fib6_nh_init+0x3d8/0x1580 [10193.885179][ T254] ip6_route_info_create+0xf18/0x17d0 [10193.885179][ T254] addrconf_f6i_alloc+0x315/0x560 [10193.885179][ T254] ipv6_add_addr+0x411/0x2000 [10193.885179][ T254] inet6_addr_add+0x30e/0xa40 [10193.885179][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10193.885179][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10193.885179][ T254] netlink_rcv_skb+0x130/0x360 [10193.885179][ T254] netlink_unicast+0x449/0x710 [10193.885179][ T254] netlink_sendmsg+0x723/0xbe0 [10193.885179][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.885179][ T254] ___sys_sendmsg+0xee/0x170 [10193.885179][ T254] __sys_sendmsg+0xcd/0x170 [10193.885179][ T254] do_syscall_64+0xc6/0x1e0 [10193.885179][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10193.885179][ T254] [10193.889310][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.889310][ T254] netdev_get_by_index+0x5e/0x80 [10193.889310][ T254] fib6_nh_init+0x3d8/0x1580 [10193.889310][ T254] ip6_route_info_create+0xf18/0x17d0 [10193.889310][ T254] ip6_route_add+0x1c/0x140 [10193.889310][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10193.889310][ T254] addrconf_add_dev+0xe2/0x170 [10193.889310][ T254] inet6_addr_add+0x12f/0xa40 [10193.889310][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10193.889310][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10193.889310][ T254] netlink_rcv_skb+0x130/0x360 [10193.889310][ T254] netlink_unicast+0x449/0x710 [10193.889310][ T254] netlink_sendmsg+0x723/0xbe0 [10193.889310][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.889310][ T254] ___sys_sendmsg+0xee/0x170 [10193.889310][ T254] __sys_sendmsg+0xcd/0x170 [10193.889310][ T254] do_syscall_64+0xc6/0x1e0 [10193.889310][ T254] [10193.893505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.893505][ T254] ipv6_add_dev+0x3ba/0x11c0 [10193.893505][ T254] ipv6_find_idev+0x102/0x170 [10193.893505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10193.893505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10193.893505][ T254] netlink_rcv_skb+0x130/0x360 [10193.893505][ T254] netlink_unicast+0x449/0x710 [10193.893505][ T254] netlink_sendmsg+0x723/0xbe0 [10193.893505][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.893505][ T254] ___sys_sendmsg+0xee/0x170 [10193.893505][ T254] __sys_sendmsg+0xcd/0x170 [10193.893505][ T254] do_syscall_64+0xc6/0x1e0 [10193.893505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10193.893505][ T254] [10193.896692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10193.896692][ T254] neigh_parms_alloc+0x1e5/0x510 [10193.896692][ T254] ipv6_add_dev+0x2fe/0x11c0 [10193.896692][ T254] ipv6_find_idev+0x102/0x170 [10193.896692][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10193.896692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10193.896692][ T254] netlink_rcv_skb+0x130/0x360 [10193.896692][ T254] netlink_unicast+0x449/0x710 [10193.896692][ T254] netlink_sendmsg+0x723/0xbe0 [10193.896692][ T254] ____sys_sendmsg+0x7b2/0xa10 [10193.896692][ T254] ___sys_sendmsg+0xee/0x170 [10193.896692][ T254] __sys_sendmsg+0xcd/0x170 [10193.896692][ T254] do_syscall_64+0xc6/0x1e0 [10193.896692][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10193.896692][ T254] [10204.135892][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10204.136671][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.136671][ T254] dst_init+0x84/0x4a0 [10204.136671][ T254] dst_alloc+0x97/0x150 [10204.136671][ T254] ip6_dst_alloc+0x23/0x90 [10204.136671][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10204.136671][ T254] ip6_pol_route+0x56f/0x840 [10204.136671][ T254] fib6_rule_lookup+0x334/0x630 [10204.136671][ T254] ip6_route_output_flags+0x259/0x480 [10204.136671][ T254] inet6_rtm_getroute+0x980/0xf70 [10204.136671][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10204.136671][ T254] netlink_rcv_skb+0x130/0x360 [10204.136671][ T254] netlink_unicast+0x449/0x710 [10204.136671][ T254] netlink_sendmsg+0x723/0xbe0 [10204.136671][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.136671][ T254] ___sys_sendmsg+0xee/0x170 [10204.136671][ T254] __sys_sendmsg+0xcd/0x170 [10204.136671][ T254] do_syscall_64+0xc6/0x1e0 [10204.136671][ T254] [10204.140464][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.140464][ T254] netdev_get_by_index+0x5e/0x80 [10204.140464][ T254] fib6_nh_init+0x3d8/0x1580 [10204.140464][ T254] ip6_route_info_create+0xf18/0x17d0 [10204.140464][ T254] addrconf_f6i_alloc+0x265/0x560 [10204.140464][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10204.140464][ T254] addrconf_join_anycast+0x1c0/0x220 [10204.140464][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10204.140464][ T254] addrconf_dad_completed+0x12b/0xe20 [10204.140464][ T254] addrconf_dad_begin+0x310/0x670 [10204.140464][ T254] addrconf_dad_work+0x10b/0xab0 [10204.140464][ T254] process_one_work+0x84d/0x18a0 [10204.140464][ T254] worker_thread+0x587/0xd30 [10204.140464][ T254] kthread+0x28a/0x350 [10204.140464][ T254] ret_from_fork+0x31/0x70 [10204.140464][ T254] ret_from_fork_asm+0x1a/0x30 [10204.140464][ T254] [10204.144314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.144314][ T254] netdev_get_by_index+0x5e/0x80 [10204.144314][ T254] fib6_nh_init+0x3d8/0x1580 [10204.144314][ T254] ip6_route_info_create+0xf18/0x17d0 [10204.144314][ T254] ip6_route_add+0x1c/0x140 [10204.144314][ T254] addrconf_prefix_route+0x2a6/0x430 [10204.144314][ T254] inet6_addr_add+0x4f8/0xa40 [10204.144314][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10204.144314][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10204.144314][ T254] netlink_rcv_skb+0x130/0x360 [10204.144314][ T254] netlink_unicast+0x449/0x710 [10204.144314][ T254] netlink_sendmsg+0x723/0xbe0 [10204.144314][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.144314][ T254] ___sys_sendmsg+0xee/0x170 [10204.144314][ T254] __sys_sendmsg+0xcd/0x170 [10204.144314][ T254] do_syscall_64+0xc6/0x1e0 [10204.144314][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10204.144314][ T254] [10204.148352][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.148352][ T254] netdev_get_by_index+0x5e/0x80 [10204.148352][ T254] fib6_nh_init+0x3d8/0x1580 [10204.148352][ T254] ip6_route_info_create+0xf18/0x17d0 [10204.148352][ T254] addrconf_f6i_alloc+0x315/0x560 [10204.148352][ T254] ipv6_add_addr+0x411/0x2000 [10204.148352][ T254] inet6_addr_add+0x30e/0xa40 [10204.148352][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10204.148352][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10204.148352][ T254] netlink_rcv_skb+0x130/0x360 [10204.148352][ T254] netlink_unicast+0x449/0x710 [10204.148352][ T254] netlink_sendmsg+0x723/0xbe0 [10204.148352][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.148352][ T254] ___sys_sendmsg+0xee/0x170 [10204.148352][ T254] __sys_sendmsg+0xcd/0x170 [10204.148352][ T254] do_syscall_64+0xc6/0x1e0 [10204.148352][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10204.148352][ T254] [10204.172316][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.172316][ T254] netdev_get_by_index+0x5e/0x80 [10204.172316][ T254] fib6_nh_init+0x3d8/0x1580 [10204.172316][ T254] ip6_route_info_create+0xf18/0x17d0 [10204.172316][ T254] ip6_route_add+0x1c/0x140 [10204.172316][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10204.172316][ T254] addrconf_add_dev+0xe2/0x170 [10204.172316][ T254] inet6_addr_add+0x12f/0xa40 [10204.172316][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10204.172316][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10204.172316][ T254] netlink_rcv_skb+0x130/0x360 [10204.172316][ T254] netlink_unicast+0x449/0x710 [10204.172316][ T254] netlink_sendmsg+0x723/0xbe0 [10204.172316][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.172316][ T254] ___sys_sendmsg+0xee/0x170 [10204.172316][ T254] __sys_sendmsg+0xcd/0x170 [10204.172316][ T254] do_syscall_64+0xc6/0x1e0 [10204.172316][ T254] [10204.176291][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.176291][ T254] ipv6_add_dev+0x3ba/0x11c0 [10204.176291][ T254] ipv6_find_idev+0x102/0x170 [10204.176291][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10204.176291][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10204.176291][ T254] netlink_rcv_skb+0x130/0x360 [10204.176291][ T254] netlink_unicast+0x449/0x710 [10204.176291][ T254] netlink_sendmsg+0x723/0xbe0 [10204.176291][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.176291][ T254] ___sys_sendmsg+0xee/0x170 [10204.176291][ T254] __sys_sendmsg+0xcd/0x170 [10204.176291][ T254] do_syscall_64+0xc6/0x1e0 [10204.176291][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10204.176291][ T254] [10204.179207][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10204.179207][ T254] neigh_parms_alloc+0x1e5/0x510 [10204.179207][ T254] ipv6_add_dev+0x2fe/0x11c0 [10204.179207][ T254] ipv6_find_idev+0x102/0x170 [10204.179207][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10204.179207][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10204.179207][ T254] netlink_rcv_skb+0x130/0x360 [10204.179207][ T254] netlink_unicast+0x449/0x710 [10204.179207][ T254] netlink_sendmsg+0x723/0xbe0 [10204.179207][ T254] ____sys_sendmsg+0x7b2/0xa10 [10204.179207][ T254] ___sys_sendmsg+0xee/0x170 [10204.179207][ T254] __sys_sendmsg+0xcd/0x170 [10204.179207][ T254] do_syscall_64+0xc6/0x1e0 [10204.179207][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10204.179207][ T254] [10214.423879][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10214.424586][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.424586][ T254] dst_init+0x84/0x4a0 [10214.424586][ T254] dst_alloc+0x97/0x150 [10214.424586][ T254] ip6_dst_alloc+0x23/0x90 [10214.424586][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10214.424586][ T254] ip6_pol_route+0x56f/0x840 [10214.424586][ T254] fib6_rule_lookup+0x334/0x630 [10214.424586][ T254] ip6_route_output_flags+0x259/0x480 [10214.424586][ T254] inet6_rtm_getroute+0x980/0xf70 [10214.424586][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10214.424586][ T254] netlink_rcv_skb+0x130/0x360 [10214.424586][ T254] netlink_unicast+0x449/0x710 [10214.424586][ T254] netlink_sendmsg+0x723/0xbe0 [10214.424586][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.424586][ T254] ___sys_sendmsg+0xee/0x170 [10214.424586][ T254] __sys_sendmsg+0xcd/0x170 [10214.424586][ T254] do_syscall_64+0xc6/0x1e0 [10214.424586][ T254] [10214.428105][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.428105][ T254] netdev_get_by_index+0x5e/0x80 [10214.428105][ T254] fib6_nh_init+0x3d8/0x1580 [10214.428105][ T254] ip6_route_info_create+0xf18/0x17d0 [10214.428105][ T254] addrconf_f6i_alloc+0x265/0x560 [10214.428105][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10214.428105][ T254] addrconf_join_anycast+0x1c0/0x220 [10214.428105][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10214.428105][ T254] addrconf_dad_completed+0x12b/0xe20 [10214.428105][ T254] addrconf_dad_begin+0x310/0x670 [10214.428105][ T254] addrconf_dad_work+0x10b/0xab0 [10214.428105][ T254] process_one_work+0x84d/0x18a0 [10214.428105][ T254] worker_thread+0x587/0xd30 [10214.428105][ T254] kthread+0x28a/0x350 [10214.428105][ T254] ret_from_fork+0x31/0x70 [10214.428105][ T254] ret_from_fork_asm+0x1a/0x30 [10214.428105][ T254] [10214.431533][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.431533][ T254] netdev_get_by_index+0x5e/0x80 [10214.431533][ T254] fib6_nh_init+0x3d8/0x1580 [10214.431533][ T254] ip6_route_info_create+0xf18/0x17d0 [10214.431533][ T254] ip6_route_add+0x1c/0x140 [10214.431533][ T254] addrconf_prefix_route+0x2a6/0x430 [10214.431533][ T254] inet6_addr_add+0x4f8/0xa40 [10214.431533][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10214.431533][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10214.431533][ T254] netlink_rcv_skb+0x130/0x360 [10214.431533][ T254] netlink_unicast+0x449/0x710 [10214.431533][ T254] netlink_sendmsg+0x723/0xbe0 [10214.431533][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.431533][ T254] ___sys_sendmsg+0xee/0x170 [10214.431533][ T254] __sys_sendmsg+0xcd/0x170 [10214.431533][ T254] do_syscall_64+0xc6/0x1e0 [10214.431533][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10214.431533][ T254] [10214.435115][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.435115][ T254] netdev_get_by_index+0x5e/0x80 [10214.435115][ T254] fib6_nh_init+0x3d8/0x1580 [10214.435115][ T254] ip6_route_info_create+0xf18/0x17d0 [10214.435115][ T254] addrconf_f6i_alloc+0x315/0x560 [10214.435115][ T254] ipv6_add_addr+0x411/0x2000 [10214.435115][ T254] inet6_addr_add+0x30e/0xa40 [10214.435115][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10214.435115][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10214.435115][ T254] netlink_rcv_skb+0x130/0x360 [10214.435115][ T254] netlink_unicast+0x449/0x710 [10214.435115][ T254] netlink_sendmsg+0x723/0xbe0 [10214.435115][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.435115][ T254] ___sys_sendmsg+0xee/0x170 [10214.435115][ T254] __sys_sendmsg+0xcd/0x170 [10214.435115][ T254] do_syscall_64+0xc6/0x1e0 [10214.435115][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10214.435115][ T254] [10214.438692][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.438692][ T254] netdev_get_by_index+0x5e/0x80 [10214.438692][ T254] fib6_nh_init+0x3d8/0x1580 [10214.438692][ T254] ip6_route_info_create+0xf18/0x17d0 [10214.438692][ T254] ip6_route_add+0x1c/0x140 [10214.438692][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10214.438692][ T254] addrconf_add_dev+0xe2/0x170 [10214.438692][ T254] inet6_addr_add+0x12f/0xa40 [10214.438692][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10214.438692][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10214.438692][ T254] netlink_rcv_skb+0x130/0x360 [10214.438692][ T254] netlink_unicast+0x449/0x710 [10214.438692][ T254] netlink_sendmsg+0x723/0xbe0 [10214.438692][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.438692][ T254] ___sys_sendmsg+0xee/0x170 [10214.438692][ T254] __sys_sendmsg+0xcd/0x170 [10214.438692][ T254] do_syscall_64+0xc6/0x1e0 [10214.438692][ T254] [10214.442831][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.442831][ T254] ipv6_add_dev+0x3ba/0x11c0 [10214.442831][ T254] ipv6_find_idev+0x102/0x170 [10214.442831][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10214.442831][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10214.442831][ T254] netlink_rcv_skb+0x130/0x360 [10214.442831][ T254] netlink_unicast+0x449/0x710 [10214.442831][ T254] netlink_sendmsg+0x723/0xbe0 [10214.442831][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.442831][ T254] ___sys_sendmsg+0xee/0x170 [10214.442831][ T254] __sys_sendmsg+0xcd/0x170 [10214.442831][ T254] do_syscall_64+0xc6/0x1e0 [10214.442831][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10214.442831][ T254] [10214.446192][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10214.446192][ T254] neigh_parms_alloc+0x1e5/0x510 [10214.446192][ T254] ipv6_add_dev+0x2fe/0x11c0 [10214.446192][ T254] ipv6_find_idev+0x102/0x170 [10214.446192][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10214.446192][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10214.446192][ T254] netlink_rcv_skb+0x130/0x360 [10214.446192][ T254] netlink_unicast+0x449/0x710 [10214.446192][ T254] netlink_sendmsg+0x723/0xbe0 [10214.446192][ T254] ____sys_sendmsg+0x7b2/0xa10 [10214.446192][ T254] ___sys_sendmsg+0xee/0x170 [10214.446192][ T254] __sys_sendmsg+0xcd/0x170 [10214.446192][ T254] do_syscall_64+0xc6/0x1e0 [10214.446192][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10214.446192][ T254] [10224.687883][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10224.688419][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.688419][ T254] dst_init+0x84/0x4a0 [10224.688419][ T254] dst_alloc+0x97/0x150 [10224.688419][ T254] ip6_dst_alloc+0x23/0x90 [10224.688419][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10224.688419][ T254] ip6_pol_route+0x56f/0x840 [10224.688419][ T254] fib6_rule_lookup+0x334/0x630 [10224.688419][ T254] ip6_route_output_flags+0x259/0x480 [10224.688419][ T254] inet6_rtm_getroute+0x980/0xf70 [10224.688419][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10224.688419][ T254] netlink_rcv_skb+0x130/0x360 [10224.688419][ T254] netlink_unicast+0x449/0x710 [10224.688419][ T254] netlink_sendmsg+0x723/0xbe0 [10224.688419][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.688419][ T254] ___sys_sendmsg+0xee/0x170 [10224.688419][ T254] __sys_sendmsg+0xcd/0x170 [10224.688419][ T254] do_syscall_64+0xc6/0x1e0 [10224.688419][ T254] [10224.690957][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.690957][ T254] netdev_get_by_index+0x5e/0x80 [10224.690957][ T254] fib6_nh_init+0x3d8/0x1580 [10224.690957][ T254] ip6_route_info_create+0xf18/0x17d0 [10224.690957][ T254] addrconf_f6i_alloc+0x265/0x560 [10224.690957][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10224.690957][ T254] addrconf_join_anycast+0x1c0/0x220 [10224.690957][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10224.690957][ T254] addrconf_dad_completed+0x12b/0xe20 [10224.690957][ T254] addrconf_dad_begin+0x310/0x670 [10224.690957][ T254] addrconf_dad_work+0x10b/0xab0 [10224.690957][ T254] process_one_work+0x84d/0x18a0 [10224.690957][ T254] worker_thread+0x587/0xd30 [10224.690957][ T254] kthread+0x28a/0x350 [10224.690957][ T254] ret_from_fork+0x31/0x70 [10224.690957][ T254] ret_from_fork_asm+0x1a/0x30 [10224.690957][ T254] [10224.693907][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.693907][ T254] netdev_get_by_index+0x5e/0x80 [10224.693907][ T254] fib6_nh_init+0x3d8/0x1580 [10224.693907][ T254] ip6_route_info_create+0xf18/0x17d0 [10224.693907][ T254] ip6_route_add+0x1c/0x140 [10224.693907][ T254] addrconf_prefix_route+0x2a6/0x430 [10224.693907][ T254] inet6_addr_add+0x4f8/0xa40 [10224.693907][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10224.693907][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10224.693907][ T254] netlink_rcv_skb+0x130/0x360 [10224.693907][ T254] netlink_unicast+0x449/0x710 [10224.693907][ T254] netlink_sendmsg+0x723/0xbe0 [10224.693907][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.693907][ T254] ___sys_sendmsg+0xee/0x170 [10224.693907][ T254] __sys_sendmsg+0xcd/0x170 [10224.693907][ T254] do_syscall_64+0xc6/0x1e0 [10224.693907][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10224.693907][ T254] [10224.696461][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.696461][ T254] netdev_get_by_index+0x5e/0x80 [10224.696461][ T254] fib6_nh_init+0x3d8/0x1580 [10224.696461][ T254] ip6_route_info_create+0xf18/0x17d0 [10224.696461][ T254] addrconf_f6i_alloc+0x315/0x560 [10224.696461][ T254] ipv6_add_addr+0x411/0x2000 [10224.696461][ T254] inet6_addr_add+0x30e/0xa40 [10224.696461][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10224.696461][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10224.696461][ T254] netlink_rcv_skb+0x130/0x360 [10224.696461][ T254] netlink_unicast+0x449/0x710 [10224.696461][ T254] netlink_sendmsg+0x723/0xbe0 [10224.696461][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.696461][ T254] ___sys_sendmsg+0xee/0x170 [10224.696461][ T254] __sys_sendmsg+0xcd/0x170 [10224.696461][ T254] do_syscall_64+0xc6/0x1e0 [10224.696461][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10224.696461][ T254] [10224.699167][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.699167][ T254] netdev_get_by_index+0x5e/0x80 [10224.699167][ T254] fib6_nh_init+0x3d8/0x1580 [10224.699167][ T254] ip6_route_info_create+0xf18/0x17d0 [10224.699167][ T254] ip6_route_add+0x1c/0x140 [10224.699167][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10224.699167][ T254] addrconf_add_dev+0xe2/0x170 [10224.699167][ T254] inet6_addr_add+0x12f/0xa40 [10224.699167][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10224.699167][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10224.699167][ T254] netlink_rcv_skb+0x130/0x360 [10224.699167][ T254] netlink_unicast+0x449/0x710 [10224.699167][ T254] netlink_sendmsg+0x723/0xbe0 [10224.699167][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.699167][ T254] ___sys_sendmsg+0xee/0x170 [10224.699167][ T254] __sys_sendmsg+0xcd/0x170 [10224.699167][ T254] do_syscall_64+0xc6/0x1e0 [10224.699167][ T254] [10224.701746][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.701746][ T254] ipv6_add_dev+0x3ba/0x11c0 [10224.701746][ T254] ipv6_find_idev+0x102/0x170 [10224.701746][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10224.701746][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10224.701746][ T254] netlink_rcv_skb+0x130/0x360 [10224.701746][ T254] netlink_unicast+0x449/0x710 [10224.701746][ T254] netlink_sendmsg+0x723/0xbe0 [10224.701746][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.701746][ T254] ___sys_sendmsg+0xee/0x170 [10224.701746][ T254] __sys_sendmsg+0xcd/0x170 [10224.701746][ T254] do_syscall_64+0xc6/0x1e0 [10224.701746][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10224.701746][ T254] [10224.703505][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10224.703505][ T254] neigh_parms_alloc+0x1e5/0x510 [10224.703505][ T254] ipv6_add_dev+0x2fe/0x11c0 [10224.703505][ T254] ipv6_find_idev+0x102/0x170 [10224.703505][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10224.703505][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10224.703505][ T254] netlink_rcv_skb+0x130/0x360 [10224.703505][ T254] netlink_unicast+0x449/0x710 [10224.703505][ T254] netlink_sendmsg+0x723/0xbe0 [10224.703505][ T254] ____sys_sendmsg+0x7b2/0xa10 [10224.703505][ T254] ___sys_sendmsg+0xee/0x170 [10224.703505][ T254] __sys_sendmsg+0xcd/0x170 [10224.703505][ T254] do_syscall_64+0xc6/0x1e0 [10224.703505][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10224.703505][ T254] [10234.935925][ T254] unregister_netdevice: waiting for dummy0 to become free. Usage count = 8 [10234.936713][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.936713][ T254] dst_init+0x84/0x4a0 [10234.936713][ T254] dst_alloc+0x97/0x150 [10234.936713][ T254] ip6_dst_alloc+0x23/0x90 [10234.936713][ T254] ip6_rt_pcpu_alloc+0x1e6/0x520 [10234.936713][ T254] ip6_pol_route+0x56f/0x840 [10234.936713][ T254] fib6_rule_lookup+0x334/0x630 [10234.936713][ T254] ip6_route_output_flags+0x259/0x480 [10234.936713][ T254] inet6_rtm_getroute+0x980/0xf70 [10234.936713][ T254] rtnetlink_rcv_msg+0x712/0xbf0 [10234.936713][ T254] netlink_rcv_skb+0x130/0x360 [10234.936713][ T254] netlink_unicast+0x449/0x710 [10234.936713][ T254] netlink_sendmsg+0x723/0xbe0 [10234.936713][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.936713][ T254] ___sys_sendmsg+0xee/0x170 [10234.936713][ T254] __sys_sendmsg+0xcd/0x170 [10234.936713][ T254] do_syscall_64+0xc6/0x1e0 [10234.936713][ T254] [10234.940342][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.940342][ T254] netdev_get_by_index+0x5e/0x80 [10234.940342][ T254] fib6_nh_init+0x3d8/0x1580 [10234.940342][ T254] ip6_route_info_create+0xf18/0x17d0 [10234.940342][ T254] addrconf_f6i_alloc+0x265/0x560 [10234.940342][ T254] __ipv6_dev_ac_inc+0x25f/0xb10 [10234.940342][ T254] addrconf_join_anycast+0x1c0/0x220 [10234.940342][ T254] __ipv6_ifa_notify+0x6b3/0xaf0 [10234.940342][ T254] addrconf_dad_completed+0x12b/0xe20 [10234.940342][ T254] addrconf_dad_begin+0x310/0x670 [10234.940342][ T254] addrconf_dad_work+0x10b/0xab0 [10234.940342][ T254] process_one_work+0x84d/0x18a0 [10234.940342][ T254] worker_thread+0x587/0xd30 [10234.940342][ T254] kthread+0x28a/0x350 [10234.940342][ T254] ret_from_fork+0x31/0x70 [10234.940342][ T254] ret_from_fork_asm+0x1a/0x30 [10234.940342][ T254] [10234.943712][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.943712][ T254] netdev_get_by_index+0x5e/0x80 [10234.943712][ T254] fib6_nh_init+0x3d8/0x1580 [10234.943712][ T254] ip6_route_info_create+0xf18/0x17d0 [10234.943712][ T254] ip6_route_add+0x1c/0x140 [10234.943712][ T254] addrconf_prefix_route+0x2a6/0x430 [10234.943712][ T254] inet6_addr_add+0x4f8/0xa40 [10234.943712][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10234.943712][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10234.943712][ T254] netlink_rcv_skb+0x130/0x360 [10234.943712][ T254] netlink_unicast+0x449/0x710 [10234.943712][ T254] netlink_sendmsg+0x723/0xbe0 [10234.943712][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.943712][ T254] ___sys_sendmsg+0xee/0x170 [10234.943712][ T254] __sys_sendmsg+0xcd/0x170 [10234.943712][ T254] do_syscall_64+0xc6/0x1e0 [10234.943712][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10234.943712][ T254] [10234.947377][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.947377][ T254] netdev_get_by_index+0x5e/0x80 [10234.947377][ T254] fib6_nh_init+0x3d8/0x1580 [10234.947377][ T254] ip6_route_info_create+0xf18/0x17d0 [10234.947377][ T254] addrconf_f6i_alloc+0x315/0x560 [10234.947377][ T254] ipv6_add_addr+0x411/0x2000 [10234.947377][ T254] inet6_addr_add+0x30e/0xa40 [10234.947377][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10234.947377][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10234.947377][ T254] netlink_rcv_skb+0x130/0x360 [10234.947377][ T254] netlink_unicast+0x449/0x710 [10234.947377][ T254] netlink_sendmsg+0x723/0xbe0 [10234.947377][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.947377][ T254] ___sys_sendmsg+0xee/0x170 [10234.947377][ T254] __sys_sendmsg+0xcd/0x170 [10234.947377][ T254] do_syscall_64+0xc6/0x1e0 [10234.947377][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10234.947377][ T254] [10234.951073][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.951073][ T254] netdev_get_by_index+0x5e/0x80 [10234.951073][ T254] fib6_nh_init+0x3d8/0x1580 [10234.951073][ T254] ip6_route_info_create+0xf18/0x17d0 [10234.951073][ T254] ip6_route_add+0x1c/0x140 [10234.951073][ T254] addrconf_add_mroute+0x1ac/0x2c0 [10234.951073][ T254] addrconf_add_dev+0xe2/0x170 [10234.951073][ T254] inet6_addr_add+0x12f/0xa40 [10234.951073][ T254] inet6_rtm_newaddr+0x560/0x6b0 [10234.951073][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10234.951073][ T254] netlink_rcv_skb+0x130/0x360 [10234.951073][ T254] netlink_unicast+0x449/0x710 [10234.951073][ T254] netlink_sendmsg+0x723/0xbe0 [10234.951073][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.951073][ T254] ___sys_sendmsg+0xee/0x170 [10234.951073][ T254] __sys_sendmsg+0xcd/0x170 [10234.951073][ T254] do_syscall_64+0xc6/0x1e0 [10234.951073][ T254] [10234.954568][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.954568][ T254] ipv6_add_dev+0x3ba/0x11c0 [10234.954568][ T254] ipv6_find_idev+0x102/0x170 [10234.954568][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10234.954568][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10234.954568][ T254] netlink_rcv_skb+0x130/0x360 [10234.954568][ T254] netlink_unicast+0x449/0x710 [10234.954568][ T254] netlink_sendmsg+0x723/0xbe0 [10234.954568][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.954568][ T254] ___sys_sendmsg+0xee/0x170 [10234.954568][ T254] __sys_sendmsg+0xcd/0x170 [10234.954568][ T254] do_syscall_64+0xc6/0x1e0 [10234.954568][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10234.954568][ T254] [10234.957314][ T254] ref_tracker: dummy0@ffff8880055d95e0 has 1/7 users at [10234.957314][ T254] neigh_parms_alloc+0x1e5/0x510 [10234.957314][ T254] ipv6_add_dev+0x2fe/0x11c0 [10234.957314][ T254] ipv6_find_idev+0x102/0x170 [10234.957314][ T254] inet6_rtm_newaddr+0x37c/0x6b0 [10234.957314][ T254] rtnetlink_rcv_msg+0x2fb/0xbf0 [10234.957314][ T254] netlink_rcv_skb+0x130/0x360 [10234.957314][ T254] netlink_unicast+0x449/0x710 [10234.957314][ T254] netlink_sendmsg+0x723/0xbe0 [10234.957314][ T254] ____sys_sendmsg+0x7b2/0xa10 [10234.957314][ T254] ___sys_sendmsg+0xee/0x170 [10234.957314][ T254] __sys_sendmsg+0xcd/0x170 [10234.957314][ T254] do_syscall_64+0xc6/0x1e0 [10234.957314][ T254] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [10234.957314][ T254] HARD STOP (10117.048263) WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr