[ 28.836615][ T287] br0: port 1(veth1) entered blocking state [ 28.837132][ T287] br0: port 1(veth1) entered disabled state [ 28.837898][ T287] veth1: entered allmulticast mode [ 28.840191][ T287] veth1: entered promiscuous mode [ 28.975511][ T289] br0: port 2(veth2) entered blocking state [ 28.975806][ T289] br0: port 2(veth2) entered disabled state [ 28.976093][ T289] veth2: entered allmulticast mode [ 28.987001][ T289] veth2: entered promiscuous mode [ 29.242422][ T50] br0: port 1(veth1) entered blocking state [ 29.242821][ T50] br0: port 1(veth1) entered forwarding state [ 29.377199][ T49] br0: port 2(veth2) entered blocking state [ 29.377487][ T49] br0: port 2(veth2) entered forwarding state [ 38.318460][ T319] veth0: entered promiscuous mode [ 38.889549][ T325] GACT probability NOT on [ 44.328345][ C0] [ 44.328529][ C0] ======================================================== [ 44.328773][ C0] WARNING: possible irq lock inversion dependency detected [ 44.329006][ C0] 6.9.0-rc1-virtme #1 Not tainted [ 44.329156][ C0] -------------------------------------------------------- [ 44.329378][ C0] swapper/0/0 just changed the state of lock: [ 44.329567][ C0] ffff888005d9ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.329957][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 44.330182][ C0] (&p->alloc_lock){+.+.}-{2:2} [ 44.330186][ C0] [ 44.330186][ C0] [ 44.330186][ C0] and interrupts could create inverse lock ordering between them. [ 44.330186][ C0] [ 44.330743][ C0] [ 44.330743][ C0] other info that might help us debug this: [ 44.330989][ C0] Chain exists of: [ 44.330989][ C0] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 44.330989][ C0] [ 44.331328][ C0] Possible interrupt unsafe locking scenario: [ 44.331328][ C0] [ 44.331584][ C0] CPU0 CPU1 [ 44.331737][ C0] ---- ---- [ 44.331887][ C0] lock(&p->alloc_lock); [ 44.332006][ C0] local_irq_disable(); [ 44.332190][ C0] lock(&br->lock); [ 44.332380][ C0] lock(lweventlist_lock); [ 44.332583][ C0] [ 44.332697][ C0] lock(&br->lock); [ 44.332812][ C0] [ 44.332812][ C0] *** DEADLOCK *** [ 44.332812][ C0] [ 44.333035][ C0] 1 lock held by swapper/0/0: [ 44.333187][ C0] #0: ffffc90000007b68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 44.333501][ C0] [ 44.333501][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 44.333775][ C0] -> (&p->alloc_lock){+.+.}-{2:2} { [ 44.333930][ C0] HARDIRQ-ON-W at: [ 44.334050][ C0] __lock_acquire+0x797/0x1570 [ 44.334247][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.334438][ C0] _raw_spin_lock+0x30/0x40 [ 44.334632][ C0] set_mems_allowed+0x1d/0x210 [ 44.334830][ C0] kernel_init_freeable+0x72/0x310 [ 44.335041][ C0] kernel_init+0x20/0x200 [ 44.335237][ C0] ret_from_fork+0x31/0x70 [ 44.335430][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.335627][ C0] SOFTIRQ-ON-W at: [ 44.335740][ C0] __lock_acquire+0x797/0x1570 [ 44.335936][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.336131][ C0] _raw_spin_lock+0x30/0x40 [ 44.336323][ C0] set_mems_allowed+0x1d/0x210 [ 44.336515][ C0] kernel_init_freeable+0x72/0x310 [ 44.336708][ C0] kernel_init+0x20/0x200 [ 44.336904][ C0] ret_from_fork+0x31/0x70 [ 44.337096][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.337290][ C0] INITIAL USE at: [ 44.337403][ C0] __lock_acquire+0x797/0x1570 [ 44.337600][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.337791][ C0] _raw_spin_lock+0x30/0x40 [ 44.337984][ C0] set_mems_allowed+0x1d/0x210 [ 44.338172][ C0] kernel_init_freeable+0x72/0x310 [ 44.338366][ C0] kernel_init+0x20/0x200 [ 44.338558][ C0] ret_from_fork+0x31/0x70 [ 44.338747][ C0] ret_from_fork_asm+0x1a/0x30 [ 44.338952][ C0] } [ 44.339032][ C0] ... key at: [] __key.387+0x0/0x40 [ 44.339262][ C0] ... acquired at: [ 44.339376][ C0] __lock_acquire+0xaf0/0x1570 [ 44.339538][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.339688][ C0] _raw_spin_lock+0x30/0x40 [ 44.339840][ C0] __get_task_comm+0x27/0x70 [ 44.340004][ C0] ref_tracker_alloc+0x2ee/0x490 [ 44.340160][ C0] linkwatch_fire_event+0x196/0x200 [ 44.340313][ C0] veth_newlink+0x367/0x830 [veth] [ 44.340469][ C0] rtnl_newlink_create+0x341/0x850 [ 44.340619][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.340774][ C0] rtnl_newlink+0x63/0xa0 [ 44.340927][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.341078][ C0] netlink_rcv_skb+0x130/0x360 [ 44.341232][ C0] netlink_unicast+0x449/0x710 [ 44.341382][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.341543][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.341698][ C0] ___sys_sendmsg+0xee/0x170 [ 44.341849][ C0] __sys_sendmsg+0xcd/0x170 [ 44.342000][ C0] do_syscall_64+0xc6/0x1e0 [ 44.342161][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.342353][ C0] [ 44.342430][ C0] -> (lweventlist_lock){....}-{2:2} { [ 44.342584][ C0] INITIAL USE at: [ 44.342699][ C0] __lock_acquire+0x797/0x1570 [ 44.342892][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.343080][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.343273][ C0] linkwatch_sync_dev+0x29/0x1f0 [ 44.343464][ C0] rtnl_getlink+0x4c9/0x970 [ 44.343654][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.343841][ C0] netlink_rcv_skb+0x130/0x360 [ 44.344042][ C0] netlink_unicast+0x449/0x710 [ 44.344235][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.344428][ C0] __sys_sendto+0x37d/0x410 [ 44.344620][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.344817][ C0] do_syscall_64+0xc6/0x1e0 [ 44.345008][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.345236][ C0] } [ 44.345313][ C0] ... key at: [] lweventlist_lock+0x18/0x60 [ 44.345547][ C0] ... acquired at: [ 44.345659][ C0] __lock_acquire+0xaf0/0x1570 [ 44.345813][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.345964][ C0] _raw_spin_lock_irqsave+0x3f/0x60 [ 44.346118][ C0] linkwatch_fire_event+0x74/0x200 [ 44.346268][ C0] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 44.346501][ C0] br_set_mac_address+0x1f3/0x260 [bridge] [ 44.346726][ C0] dev_set_mac_address+0x28a/0x410 [ 44.346889][ C0] dev_set_mac_address_user+0x31/0x50 [ 44.347041][ C0] do_setlink+0x17b4/0x21e0 [ 44.347193][ C0] rtnl_setlink+0x1f7/0x310 [ 44.347344][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.347496][ C0] netlink_rcv_skb+0x130/0x360 [ 44.347647][ C0] netlink_unicast+0x449/0x710 [ 44.347799][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.347965][ C0] __sys_sendto+0x37d/0x410 [ 44.348128][ C0] __x64_sys_sendto+0xe0/0x1c0 [ 44.348280][ C0] do_syscall_64+0xc6/0x1e0 [ 44.348432][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.348629][ C0] [ 44.348712][ C0] -> (&br->lock){+.-.}-{2:2} { [ 44.348891][ C0] HARDIRQ-ON-W at: [ 44.349017][ C0] __lock_acquire+0x797/0x1570 [ 44.349227][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.349433][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.349648][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 44.349930][ C0] br_changelink+0x231/0x1360 [bridge] [ 44.350178][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.350422][ C0] rtnl_newlink_create+0x341/0x850 [ 44.350625][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.350831][ C0] rtnl_newlink+0x63/0xa0 [ 44.351044][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.351248][ C0] netlink_rcv_skb+0x130/0x360 [ 44.351464][ C0] netlink_unicast+0x449/0x710 [ 44.351672][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.351880][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.352087][ C0] ___sys_sendmsg+0xee/0x170 [ 44.352303][ C0] __sys_sendmsg+0xcd/0x170 [ 44.352514][ C0] do_syscall_64+0xc6/0x1e0 [ 44.352718][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.352975][ C0] IN-SOFTIRQ-W at: [ 44.353100][ C0] __lock_acquire+0x797/0x1570 [ 44.353309][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.353514][ C0] _raw_spin_lock+0x30/0x40 [ 44.353728][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.354014][ C0] call_timer_fn+0x13b/0x230 [ 44.354221][ C0] __run_timers+0x545/0x810 [ 44.354425][ C0] timer_expire_remote+0x9b/0xe0 [ 44.354635][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.354843][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.355052][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.355258][ C0] __do_softirq+0x1f8/0x5df [ 44.355466][ C0] irq_exit_rcu+0x97/0xc0 [ 44.355674][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.355921][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.356169][ C0] default_idle+0xf/0x20 [ 44.356377][ C0] default_idle_call+0x6d/0xb0 [ 44.356582][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.356791][ C0] do_idle+0xf9/0x160 [ 44.356964][ C0] cpu_startup_entry+0x54/0x60 [ 44.357168][ C0] rest_init+0x14f/0x260 [ 44.357372][ C0] start_kernel+0x318/0x3d0 [ 44.357581][ C0] x86_64_start_reservations+0x18/0x30 [ 44.357791][ C0] x86_64_start_kernel+0xba/0x110 [ 44.357994][ C0] common_startup_64+0x12c/0x138 [ 44.358200][ C0] INITIAL USE at: [ 44.358321][ C0] __lock_acquire+0x797/0x1570 [ 44.358524][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.358726][ C0] _raw_spin_lock_bh+0x38/0x50 [ 44.358954][ C0] br_set_ageing_time+0x2d/0xf0 [bridge] [ 44.359232][ C0] br_changelink+0x231/0x1360 [bridge] [ 44.359471][ C0] br_dev_newlink+0xa5/0x100 [bridge] [ 44.359714][ C0] rtnl_newlink_create+0x341/0x850 [ 44.359915][ C0] __rtnl_newlink+0xac9/0xd80 [ 44.360117][ C0] rtnl_newlink+0x63/0xa0 [ 44.360322][ C0] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 44.360526][ C0] netlink_rcv_skb+0x130/0x360 [ 44.360731][ C0] netlink_unicast+0x449/0x710 [ 44.360938][ C0] netlink_sendmsg+0x723/0xbe0 [ 44.361142][ C0] ____sys_sendmsg+0x7b2/0xa10 [ 44.361347][ C0] ___sys_sendmsg+0xee/0x170 [ 44.361563][ C0] __sys_sendmsg+0xcd/0x170 [ 44.361779][ C0] do_syscall_64+0xc6/0x1e0 [ 44.362081][ C0] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 44.362328][ C0] } [ 44.362412][ C0] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 44.362826][ C0] ... acquired at: [ 44.362962][ C0] mark_lock+0x28d/0x3e0 [ 44.363128][ C0] mark_usage+0xd9/0x2a0 [ 44.363297][ C0] __lock_acquire+0x797/0x1570 [ 44.363544][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.363697][ C0] _raw_spin_lock+0x30/0x40 [ 44.363848][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.364074][ C0] call_timer_fn+0x13b/0x230 [ 44.364323][ C0] __run_timers+0x545/0x810 [ 44.364479][ C0] timer_expire_remote+0x9b/0xe0 [ 44.364632][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.364793][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.364944][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.365190][ C0] __do_softirq+0x1f8/0x5df [ 44.365340][ C0] irq_exit_rcu+0x97/0xc0 [ 44.365498][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.365687][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.365967][ C0] default_idle+0xf/0x20 [ 44.366117][ C0] default_idle_call+0x6d/0xb0 [ 44.366271][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.366424][ C0] do_idle+0xf9/0x160 [ 44.366633][ C0] cpu_startup_entry+0x54/0x60 [ 44.366791][ C0] rest_init+0x14f/0x260 [ 44.366958][ C0] start_kernel+0x318/0x3d0 [ 44.367111][ C0] x86_64_start_reservations+0x18/0x30 [ 44.367358][ C0] x86_64_start_kernel+0xba/0x110 [ 44.367512][ C0] common_startup_64+0x12c/0x138 [ 44.367667][ C0] [ 44.367743][ C0] [ 44.367743][ C0] stack backtrace: [ 44.367931][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc1-virtme #1 [ 44.368252][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 44.368590][ C0] Call Trace: [ 44.368798][ C0] [ 44.368878][ C0] dump_stack_lvl+0x82/0xd0 [ 44.369041][ C0] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 44.369230][ C0] ? common_startup_64+0x12c/0x138 [ 44.369383][ C0] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 44.369668][ C0] ? __pfx_usage_skip+0x10/0x10 [ 44.369820][ C0] ? __pfx_usage_match+0x10/0x10 [ 44.369972][ C0] ? arch_stack_walk+0x8c/0xf0 [ 44.370124][ C0] mark_lock_irq+0x4cd/0xa10 [ 44.370371][ C0] ? __pfx_mark_lock_irq+0x10/0x10 [ 44.370528][ C0] ? stack_trace_save+0x94/0xd0 [ 44.370681][ C0] ? add_chain_cache+0x248/0x8b0 [ 44.370839][ C0] ? save_trace+0x8f/0x5b0 [ 44.371098][ C0] mark_lock+0x28d/0x3e0 [ 44.371215][ C0] mark_usage+0xd9/0x2a0 [ 44.371331][ C0] __lock_acquire+0x797/0x1570 [ 44.371496][ C0] ? __lock_acquire+0xaf0/0x1570 [ 44.371647][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.372002][ C0] lock_acquire.part.0+0xeb/0x330 [ 44.372160][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.372386][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 44.372634][ C0] ? trace_lock_acquire+0x135/0x1c0 [ 44.372787][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.373010][ C0] ? lock_acquire+0x32/0xc0 [ 44.373160][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.373575][ C0] _raw_spin_lock+0x30/0x40 [ 44.373726][ C0] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.373951][ C0] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 44.374176][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.374530][ C0] call_timer_fn+0x13b/0x230 [ 44.374681][ C0] ? call_timer_fn+0xe8/0x230 [ 44.374847][ C0] ? call_timer_fn+0xe8/0x230 [ 44.375028][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 44.375300][ C0] ? mark_lock+0x38/0x3e0 [ 44.375429][ C0] __run_timers+0x545/0x810 [ 44.375592][ C0] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 44.375879][ C0] ? __pfx___run_timers+0x10/0x10 [ 44.376135][ C0] ? __lock_release+0x103/0x460 [ 44.376299][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.376463][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.376625][ C0] ? lock_acquire+0x32/0xc0 [ 44.376888][ C0] ? timer_expire_remote+0x93/0xe0 [ 44.377053][ C0] timer_expire_remote+0x9b/0xe0 [ 44.377216][ C0] tmigr_handle_remote_cpu+0x270/0x430 [ 44.377382][ C0] ? __pfx_tmigr_handle_remote_cpu+0x10/0x10 [ 44.377675][ C0] tmigr_handle_remote_up+0x19f/0x2e0 [ 44.377826][ C0] tmigr_handle_remote+0x21d/0x3a0 [ 44.377976][ C0] ? do_raw_spin_lock+0x131/0x270 [ 44.378133][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 44.378377][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 44.378529][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x14f/0x370 [ 44.378716][ C0] __do_softirq+0x1f8/0x5df [ 44.378868][ C0] irq_exit_rcu+0x97/0xc0 [ 44.379088][ C0] sysvec_apic_timer_interrupt+0x75/0x80 [ 44.379240][ C0] [ 44.379318][ C0] [ 44.379394][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 44.379590][ C0] RIP: 0010:default_idle+0xf/0x20 [ 44.379847][ C0] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d a3 30 35 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 44.380380][ C0] RSP: 0018:ffffffff86a07e00 EFLAGS: 00000242 [ 44.380669][ C0] RAX: 00000000000a7ad5 RBX: 1ffffffff0d40fc2 RCX: ffffffff85b0e9d5 [ 44.380904][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff834aa4a4 [ 44.381131][ C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0709c [ 44.381462][ C0] R10: ffff8880360384e3 R11: ffff88803602d9b0 R12: 0000000000000000 [ 44.381703][ C0] R13: ffffffff86a1d000 R14: dffffc0000000000 R15: 0000000000014770 [ 44.381931][ C0] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 44.382180][ C0] ? cpuidle_idle_call+0x1f4/0x280 [ 44.382333][ C0] default_idle_call+0x6d/0xb0 [ 44.382483][ C0] cpuidle_idle_call+0x1f4/0x280 [ 44.382634][ C0] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 44.382893][ C0] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 44.383059][ C0] do_idle+0xf9/0x160 [ 44.383174][ C0] cpu_startup_entry+0x54/0x60 [ 44.383324][ C0] rest_init+0x14f/0x260 [ 44.383444][ C0] start_kernel+0x318/0x3d0 [ 44.383691][ C0] x86_64_start_reservations+0x18/0x30 [ 44.383843][ C0] x86_64_start_kernel+0xba/0x110 [ 44.383994][ C0] common_startup_64+0x12c/0x138 [ 44.384148][ C0] [ 65.290158][ T353] veth0: left promiscuous mode [ 65.577454][ T357] veth3: entered promiscuous mode [ 67.430241][ T366] veth3: left promiscuous mode [ 67.627667][ T368] veth3: entered promiscuous mode [ 69.466541][ T377] veth3: left promiscuous mode [ 69.671228][ T380] veth3: entered promiscuous mode [ 71.485392][ T389] veth3: left promiscuous mode [ 71.709714][ T391] veth3: entered promiscuous mode [ 73.588959][ T400] veth3: left promiscuous mode [ 97.394556][ T430] br0: port 2(veth2) entered disabled state [ 97.491990][ T431] br0: port 1(veth1) entered disabled state [ 97.592553][ T432] veth2: left allmulticast mode [ 97.592797][ T432] veth2: left promiscuous mode [ 97.593053][ T432] br0: port 2(veth2) entered disabled state [ 97.594009][ T432] veth1: left allmulticast mode [ 97.594155][ T432] veth1: left promiscuous mode [ 97.594403][ T432] br0: port 1(veth1) entered disabled state