[ 11.027604][ T215] ns3br1: port 1(ns3eth1) entered blocking state [ 11.027729][ T215] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 11.027732][ T215] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 215, name: ip [ 11.027733][ T215] preempt_count: 1, expected: 0 [ 11.027734][ T215] RCU nest depth: 0, expected: 0 [ 11.027735][ T215] locks held by ip/215: 5, last CPU#3: [ 11.027738][ T215] #0: ffffffffa80e3740 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x9a8/0x11c0 [ 11.027750][ T215] #1: ffffffffa7979cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 11.027757][ T215] #2: ffffffffa7979d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 11.027761][ T215] #3: ffffffffa7899660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 11.027764][ T215] #4: ffffffffa7899560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 11.027768][ T215] irq event stamp: 28362 [ 11.027769][ T215] hardirqs last enabled at (28361): [] __down_trylock_console_sem+0x86/0xa0 [ 11.027772][ T215] hardirqs last disabled at (28362): [] console_emit_next_record+0x3d4/0x4c0 [ 11.027774][ T215] softirqs last enabled at (28292): [] addrconf_permanent_addr+0x2b1/0x9c0 [ 11.027778][ T215] softirqs last disabled at (28290): [] addrconf_permanent_addr+0x108/0x9c0 [ 11.027781][ T215] Preemption disabled at: [ 11.027781][ T215] [] vprintk_emit+0x31b/0x3e0 [ 11.027788][ T215] CPU: 3 UID: 0 PID: 215 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 11.027791][ T215] Tainted: [W]=WARN [ 11.027792][ T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.027794][ T215] Call Trace: [ 11.027795][ T215] [ 11.027797][ T215] dump_stack_lvl+0x6f/0xa0 [ 11.027803][ T215] ? vprintk_emit+0x31b/0x3e0 [ 11.027805][ T215] __might_resched.cold+0x1fe/0x2c1 [ 11.027809][ T215] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 11.027813][ T215] ? __kmalloc_noprof+0xdb/0x760 [ 11.027818][ T215] __kmalloc_noprof+0x443/0x760 [ 11.027821][ T215] ? alloc_buf.isra.0+0x4b/0x260 [ 11.027826][ T215] ? do_raw_spin_unlock+0x59/0x250 [ 11.027829][ T215] alloc_buf.isra.0+0x4b/0x260 [ 11.027833][ T215] put_chars+0x1e1/0x2f0 [ 11.027836][ T215] ? __send_to_port+0x420/0x420 [ 11.027837][ T215] ? check_prev_add+0x316/0xe90 [ 11.027841][ T215] ? validate_chain+0x34a/0xc20 [ 11.027845][ T215] hvc_console_print+0x292/0x780 [ 11.027848][ T215] ? mark_usage+0x61/0x170 [ 11.027850][ T215] ? __lock_acquire+0x518/0xc20 [ 11.027851][ T215] ? __lock_acquire+0x518/0xc20 [ 11.027855][ T215] ? hvc_write+0x3a0/0x3a0 [ 11.027857][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 11.027861][ T215] ? lock_acquire+0x13c/0x160 [ 11.027865][ T215] console_emit_next_record+0x22f/0x4c0 [ 11.027868][ T215] ? devkmsg_read+0x4b0/0x4b0 [ 11.027870][ T215] ? console_flush_one_record+0x106/0x710 [ 11.027873][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.027877][ T215] ? lock_acquire+0x13c/0x160 [ 11.027881][ T215] console_flush_one_record+0x46f/0x710 [ 11.027885][ T215] ? console_emit_next_record+0x4c0/0x4c0 [ 11.027887][ T215] ? __lock_acquire+0x518/0xc20 [ 11.027892][ T215] console_unlock+0xee/0x1f0 [ 11.027894][ T215] ? console_flush_one_record+0x710/0x710 [ 11.027896][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.027899][ T215] ? lock_acquire+0x60/0x160 [ 11.027902][ T215] ? __down_trylock_console_sem+0x5e/0xa0 [ 11.027904][ T215] ? vprintk_emit+0x320/0x3e0 [ 11.027907][ T215] vprintk_emit+0x37c/0x3e0 [ 11.027911][ T215] ? wake_up_klogd_work_func+0x90/0x90 [ 11.027913][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 11.027915][ T215] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 11.027918][ T215] ? mark_held_locks+0x40/0x70 [ 11.027922][ T215] _printk+0xc7/0x100 [ 11.027925][ T215] ? snapshot_read.cold+0x21/0x21 [ 11.027928][ T215] ? br_multicast_flood+0x960/0x960 [ 11.027931][ T215] ? do_setlink.isra.0+0xa31/0x2750 [ 11.027932][ T215] ? rtnl_newlink+0x9f1/0x11c0 [ 11.027933][ T215] ? rtnetlink_rcv_msg+0x6fd/0xbd0 [ 11.027938][ T215] br_set_state+0x22f/0x410 [ 11.027941][ T215] br_init_port+0xc4/0x200 [ 11.027944][ T215] new_nbp+0x39c/0x580 [ 11.027947][ T215] br_add_if+0x212/0x1360 [ 11.027950][ T215] ? kernel_text_address+0x149/0x170 [ 11.027953][ T215] ? __kernel_text_address+0x12/0x30 [ 11.027957][ T215] do_set_master+0x357/0x580 [ 11.027959][ T215] ? netif_change_flags+0xfe/0x190 [ 11.027962][ T215] do_setlink.isra.0+0xa31/0x2750 [ 11.027966][ T215] ? stack_trace_save+0x93/0xc0 [ 11.027969][ T215] ? rtnl_link_get_size+0x350/0x350 [ 11.027970][ T215] ? rcu_read_lock_any_held+0x66/0x90 [ 11.027973][ T215] ? stack_depot_save_flags+0x38e/0x790 [ 11.027976][ T215] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 11.027979][ T215] ? rcu_read_lock_any_held+0x3c/0x90 [ 11.027981][ T215] ? validate_chain+0x38b/0xc20 [ 11.027983][ T215] ? kasan_save_stack+0x3d/0x50 [ 11.027986][ T215] ? kasan_save_stack+0x2f/0x50 [ 11.027988][ T215] ? kasan_save_track+0x14/0x30 [ 11.027991][ T215] ? __lock_acquire+0x518/0xc20 [ 11.027992][ T215] ? __netlink_deliver_tap+0x24e/0x9b0 [ 11.027996][ T215] ? ___sys_sendmsg+0x70/0x1d0 [ 11.028001][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 11.028003][ T215] ? rtnl_newlink+0x9a8/0x11c0 [ 11.028005][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.028008][ T215] ? lock_acquire+0x13c/0x160 [ 11.028009][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.028011][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.028013][ T215] ? trace_contention_end+0xb3/0x180 [ 11.028017][ T215] ? __mutex_lock+0x1db/0x1ea0 [ 11.028020][ T215] ? __mutex_lock+0x9a3/0x1ea0 [ 11.028022][ T215] ? rtnl_newlink+0x9a8/0x11c0 [ 11.028025][ T215] ? ww_mutex_lock+0x160/0x160 [ 11.028028][ T215] ? nla_get_range_signed+0x3d0/0x3d0 [ 11.028032][ T215] ? __rtnl_newlink+0x3fa/0xa50 [ 11.028038][ T215] rtnl_newlink+0x9f1/0x11c0 [ 11.028043][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 11.028045][ T215] ? __lock_acquire+0x518/0xc20 [ 11.028049][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 11.028051][ T215] ? find_held_lock+0x2b/0x80 [ 11.028053][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 11.028055][ T215] ? __lock_release.isra.0+0x69/0x1a0 [ 11.028058][ T215] ? rtnl_bridge_getlink+0x850/0x850 [ 11.028060][ T215] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 11.028063][ T215] ? rtnl_link_fill+0x920/0x920 [ 11.028065][ T215] ? __lock_acquire+0x518/0xc20 [ 11.028069][ T215] ? lock_acquire.part.0+0xd4/0x280 [ 11.028071][ T215] ? find_held_lock+0x2b/0x80 [ 11.028074][ T215] netlink_rcv_skb+0x14e/0x3a0 [ 11.028076][ T215] ? rtnl_link_fill+0x920/0x920 [ 11.028079][ T215] ? netlink_ack+0xcf0/0xcf0 [ 11.028085][ T215] ? netlink_deliver_tap+0xc5/0x330 [ 11.028087][ T215] ? netlink_deliver_tap+0x13c/0x330 [ 11.028092][ T215] netlink_unicast+0x486/0x750 [ 11.028096][ T215] ? netlink_attachskb+0x810/0x810 [ 11.028098][ T215] ? __lock_acquire+0x518/0xc20 [ 11.028103][ T215] netlink_sendmsg+0x735/0xc60 [ 11.028107][ T215] ? netlink_unicast+0x750/0x750 [ 11.028111][ T215] ? __might_fault+0x97/0x140 [ 11.028116][ T215] ____sys_sendmsg+0x415/0x880 [ 11.028118][ T215] ? copy_msghdr_from_user+0x279/0x420 [ 11.028121][ T215] ? get_timestamp.constprop.0+0x390/0x390 [ 11.028122][ T215] ? move_addr_to_kernel+0x40/0x40 [ 11.028129][ T215] ___sys_sendmsg+0x14e/0x1d0 [ 11.028132][ T215] ? copy_msghdr_from_user+0x420/0x420 [ 11.028147][ T215] __sys_sendmsg+0x12c/0x1d0 [ 11.028151][ T215] ? __sys_sendmsg_sock+0x20/0x20 [ 11.028157][ T215] ? rcu_is_watching+0x16/0xd0 [ 11.028160][ T215] do_syscall_64+0xff/0x530 [ 11.028163][ T215] ? exc_page_fault+0xee/0x100 [ 11.028166][ T215] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.028168][ T215] RIP: 0033:0x7f685f26454e [ 11.028173][ T215] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 11.028174][ T215] RSP: 002b:00007ffcf02fcf80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.028177][ T215] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f685f26454e [ 11.028179][ T215] RDX: 0000000000000000 RSI: 00007ffcf02fd030 RDI: 0000000000000005 [ 11.028180][ T215] RBP: 00007ffcf02fcf90 R08: 0000000000000000 R09: 0000000000000000 [ 11.028181][ T215] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914770 [ 11.028181][ T215] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf02fd700 [ 11.028188][ T215] [ 11.060760][ T215] ns3br1: port 1(ns3eth1) entered disabled state [ 11.061063][ T215] ns3eth1: entered allmulticast mode [ 11.062142][ T215] ns3eth1: entered promiscuous mode [ 11.064249][ T65] ns3br1: port 1(ns3eth1) entered blocking state [ 11.064783][ T65] ns3br1: port 1(ns3eth1) entered forwarding state [ 11.086297][ T215] ip (215) used greatest stack depth: 23336 bytes left [ 11.113844][ T216] ns3br1: port 2(ns3eth2) entered blocking state [ 11.114173][ T216] ns3br1: port 2(ns3eth2) entered disabled state [ 11.114505][ T216] ns3eth2: entered allmulticast mode [ 11.115583][ T216] ns3eth2: entered promiscuous mode [ 11.149358][ T217] ns3br1: port 3(ns3eth3) entered blocking state [ 11.149809][ T217] ns3br1: port 3(ns3eth3) entered disabled state [ 11.150174][ T217] ns3eth3: entered allmulticast mode [ 11.151574][ T217] ns3eth3: entered promiscuous mode [ 11.201154][ T65] ns3br1: port 2(ns3eth2) entered blocking state [ 11.201462][ T65] ns3br1: port 2(ns3eth2) entered forwarding state [ 11.234159][ T38] ns3br1: port 3(ns3eth3) entered blocking state [ 11.234482][ T38] ns3br1: port 3(ns3eth3) entered forwarding state [ 11.586130][ T231] ns1eth1: entered promiscuous mode [ 11.587003][ T231] ns1eth2: entered promiscuous mode [ 11.621287][ T232] ns2eth1: entered promiscuous mode [ 11.622073][ T232] ns2eth2: entered promiscuous mode [ 11.622710][ T232] ns2eth3: entered promiscuous mode [ 24.598266][ T12] ns1eth1: left promiscuous mode [ 24.598313][ T12] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 24.598315][ T12] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 12, name: kworker/u16:0 [ 24.598316][ T12] preempt_count: 1, expected: 0 [ 24.598317][ T12] RCU nest depth: 0, expected: 0 [ 24.598318][ T12] locks held by kworker/u16:0/12: 8, last CPU#1: [ 24.598321][ T12] #0: ff11000001a09d40 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0xd9a/0x1560 [ 24.598333][ T12] #1: ffa00000000c7d10 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0xdfc/0x1560 [ 24.598337][ T12] #2: ffffffffa80c7a88 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xbf/0x890 [ 24.598342][ T12] #3: ffffffffa80e3740 (rtnl_mutex){+.+.}-{4:4}, at: default_device_exit_batch+0x9a/0x600 [ 24.598346][ T12] #4: ffffffffa7979cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 24.598351][ T12] #5: ffffffffa7979d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 24.598354][ T12] #6: ffffffffa7899660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 24.598358][ T12] #7: ffffffffa7899560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 24.598361][ T12] irq event stamp: 17876 [ 24.598362][ T12] hardirqs last enabled at (17875): [] __down_trylock_console_sem+0x86/0xa0 [ 24.598365][ T12] hardirqs last disabled at (17876): [] console_emit_next_record+0x3d4/0x4c0 [ 24.598367][ T12] softirqs last enabled at (17748): [] tcp_close+0x2b/0xb0 [ 24.598370][ T12] softirqs last disabled at (17746): [] release_sock+0x21/0x240 [ 24.598373][ T12] Preemption disabled at: [ 24.598374][ T12] [] vprintk_emit+0x31b/0x3e0 [ 24.598379][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 24.598383][ T12] Tainted: [W]=WARN [ 24.598384][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.598385][ T12] Workqueue: netns cleanup_net [ 24.598388][ T12] Call Trace: [ 24.598390][ T12] [ 24.598392][ T12] dump_stack_lvl+0x6f/0xa0 [ 24.598398][ T12] ? vprintk_emit+0x31b/0x3e0 [ 24.598400][ T12] __might_resched.cold+0x1fe/0x2c1 [ 24.598405][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 24.598409][ T12] ? __kmalloc_noprof+0xdb/0x760 [ 24.598414][ T12] __kmalloc_noprof+0x443/0x760 [ 24.598416][ T12] ? alloc_buf.isra.0+0x4b/0x260 [ 24.598422][ T12] ? do_raw_spin_unlock+0x59/0x250 [ 24.598429][ T12] alloc_buf.isra.0+0x4b/0x260 [ 24.598432][ T12] put_chars+0x1e1/0x2f0 [ 24.598434][ T12] ? check_prev_add+0xef/0xe90 [ 24.598437][ T12] ? __send_to_port+0x420/0x420 [ 24.598440][ T12] ? validate_chain+0x34a/0xc20 [ 24.598444][ T12] hvc_console_print+0x292/0x780 [ 24.598451][ T12] ? hvc_write+0x3a0/0x3a0 [ 24.598454][ T12] ? rcu_is_watching+0x16/0xd0 [ 24.598458][ T12] ? lock_acquire+0x13c/0x160 [ 24.598462][ T12] console_emit_next_record+0x22f/0x4c0 [ 24.598466][ T12] ? devkmsg_read+0x4b0/0x4b0 [ 24.598467][ T12] ? console_flush_one_record+0x106/0x710 [ 24.598471][ T12] ? rcu_is_watching+0x16/0xd0 [ 24.598473][ T12] ? lock_acquire+0x13c/0x160 [ 24.598477][ T12] console_flush_one_record+0x46f/0x710 [ 24.598481][ T12] ? console_emit_next_record+0x4c0/0x4c0 [ 24.598483][ T12] ? __lock_acquire+0x518/0xc20 [ 24.598488][ T12] console_unlock+0xee/0x1f0 [ 24.598496][ T12] ? console_flush_one_record+0x710/0x710 [ 24.598498][ T12] ? rcu_is_watching+0x16/0xd0 [ 24.598500][ T12] ? lock_acquire+0x60/0x160 [ 24.598504][ T12] ? __down_trylock_console_sem+0x5e/0xa0 [ 24.598506][ T12] ? vprintk_emit+0x320/0x3e0 [ 24.598509][ T12] vprintk_emit+0x37c/0x3e0 [ 24.598513][ T12] ? wake_up_klogd_work_func+0x90/0x90 [ 24.598516][ T12] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 24.598518][ T12] ? lockdep_hardirqs_on+0x91/0x130 [ 24.598520][ T12] ? finish_task_switch.isra.0+0x209/0xa70 [ 24.598522][ T12] ? finish_task_switch.isra.0+0x209/0xa70 [ 24.598526][ T12] _printk+0xc7/0x100 [ 24.598529][ T12] ? snapshot_read.cold+0x21/0x21 [ 24.598532][ T12] ? synchronize_rcu_expedited+0x440/0x510 [ 24.598535][ T12] ? netdev_name+0x43/0x60 [ 24.598538][ T12] ? __netdev_printk+0x17f/0x1d0 [ 24.598541][ T12] netdev_info+0xe2/0x116 [ 24.598544][ T12] ? netdev_notice+0x120/0x120 [ 24.598547][ T12] ? synchronize_rcu_expedited+0x440/0x510 [ 24.598548][ T12] ? netif_set_mtu_ext+0x5f0/0x5f0 [ 24.598551][ T12] ? synchronize_rcu_normal+0x340/0x340 [ 24.598554][ T12] ? mutex_is_locked+0x1c/0x50 [ 24.598558][ T12] __dev_set_promiscuity.cold+0x95/0x104 [ 24.598560][ T12] ? sync_rcu_exp_select_cpus+0x700/0x700 [ 24.598563][ T12] netif_set_promiscuity+0x4c/0xc0 [ 24.598568][ T12] dev_set_promiscuity+0x9d/0x150 [ 24.598570][ T12] hsr_del_port+0x39d/0x540 [ 24.598576][ T12] hsr_del_ports+0x24/0x80 [ 24.598578][ T12] hsr_dellink+0x5d/0x90 [ 24.598581][ T12] default_device_exit_batch+0x19d/0x600 [ 24.598585][ T12] ? unregister_netdevice_queue+0x470/0x470 [ 24.598587][ T12] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 24.598590][ T12] ? mutex_is_locked+0x1c/0x50 [ 24.598593][ T12] ops_undo_list+0x2ce/0x8f0 [ 24.598597][ T12] ? lockdep_hardirqs_on+0x91/0x130 [ 24.598599][ T12] ? rtnl_net_dumpid_one+0x2d0/0x2d0 [ 24.598601][ T12] ? __lock_release.isra.0+0x69/0x1a0 [ 24.598604][ T12] ? idr_destroy+0x121/0x250 [ 24.598608][ T12] cleanup_net+0x431/0x890 [ 24.598611][ T12] ? net_passive_dec+0x230/0x230 [ 24.598615][ T12] ? lock_acquire+0x13c/0x160 [ 24.598617][ T12] ? rcu_is_watching+0x16/0xd0 [ 24.598621][ T12] process_one_work+0xe3e/0x1560 [ 24.598628][ T12] ? __queue_delayed_work+0x470/0x470 [ 24.598630][ T12] ? lock_acquire.part.0+0xd4/0x280 [ 24.598638][ T12] worker_thread+0x4f1/0xd60 [ 24.598645][ T12] ? rescuer_thread+0x1340/0x1340 [ 24.598647][ T12] kthread+0x367/0x460 [ 24.598650][ T12] ? trace_irq_enable.constprop.0+0x9b/0x160 [ 24.598652][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 24.598655][ T12] ret_from_fork+0x474/0x6b0 [ 24.598659][ T12] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 24.598662][ T12] ? __switch_to+0x5a3/0xe00 [ 24.598665][ T12] ? kthread_affine_preferred+0x4c0/0x4c0 [ 24.598668][ T12] ret_from_fork_asm+0x11/0x20 [ 24.598677][ T12] [ 24.625294][ T12] ns1eth2: left promiscuous mode [ 24.640932][ T12] ns2eth2 (unregistering): left promiscuous mode [ 24.652033][ T12] ns2eth1 (unregistering): left promiscuous mode [ 24.751789][ T12] ns2eth3: left promiscuous mode [ 24.760489][ T12] ns3br1: port 1(ns3eth1) entered disabled state [ 24.765505][ T12] ns3eth1 (unregistering): left allmulticast mode [ 24.765813][ T12] ns3eth1 (unregistering): left promiscuous mode [ 24.766116][ T12] ns3br1: port 1(ns3eth1) entered disabled state [ 24.876035][ T12] ns3eth3: left allmulticast mode [ 24.876290][ T12] ns3eth3: left promiscuous mode [ 24.876642][ T12] ns3br1: port 3(ns3eth3) entered disabled state [ 24.877797][ T12] ns3eth2: left allmulticast mode [ 24.878041][ T12] ns3eth2: left promiscuous mode [ 24.878361][ T12] ns3br1: port 2(ns3eth2) entered disabled state