[ 29.380103][ T278] 8021q: 802.1Q VLAN Support v1.8 [ 33.499560][ T311] br0: port 1(veth1) entered blocking state [ 33.500285][ T311] br0: port 1(veth1) entered disabled state [ 33.500663][ T311] veth1: entered allmulticast mode [ 33.502778][ T311] veth1: entered promiscuous mode [ 33.634616][ T63] br0: port 1(veth1) entered blocking state [ 33.634980][ T63] br0: port 1(veth1) entered forwarding state [ 33.885767][ T314] br0: port 2(veth2) entered blocking state [ 33.886052][ T314] br0: port 2(veth2) entered disabled state [ 33.892998][ T314] veth2: entered allmulticast mode [ 33.895312][ T314] veth2: entered promiscuous mode [ 34.014646][ T50] br0: port 2(veth2) entered blocking state [ 34.014900][ T50] br0: port 2(veth2) entered forwarding state [ 48.933172][ C3] [ 48.933288][ C3] ======================================================== [ 48.933495][ C3] WARNING: possible irq lock inversion dependency detected [ 48.933706][ C3] 6.9.0-rc1-virtme #1 Not tainted [ 48.933843][ C3] -------------------------------------------------------- [ 48.934047][ C3] swapper/3/0 just changed the state of lock: [ 48.934224][ C3] ffff888005dcac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.934573][ C3] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 48.934774][ C3] (&p->alloc_lock){+.+.}-{2:2} [ 48.934778][ C3] [ 48.934778][ C3] [ 48.934778][ C3] and interrupts could create inverse lock ordering between them. [ 48.934778][ C3] [ 48.935278][ C3] [ 48.935278][ C3] other info that might help us debug this: [ 48.935479][ C3] Chain exists of: [ 48.935479][ C3] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 48.935479][ C3] [ 48.935794][ C3] Possible interrupt unsafe locking scenario: [ 48.935794][ C3] [ 48.935998][ C3] CPU0 CPU1 [ 48.936135][ C3] ---- ---- [ 48.936278][ C3] lock(&p->alloc_lock); [ 48.936382][ C3] local_irq_disable(); [ 48.936548][ C3] lock(&br->lock); [ 48.936719][ C3] lock(lweventlist_lock); [ 48.936889][ C3] [ 48.936994][ C3] lock(&br->lock); [ 48.937097][ C3] [ 48.937097][ C3] *** DEADLOCK *** [ 48.937097][ C3] [ 48.937298][ C3] 1 lock held by swapper/3/0: [ 48.937441][ C3] #0: ffffc90000288d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 48.937727][ C3] [ 48.937727][ C3] the shortest dependencies between 2nd lock and 1st lock: [ 48.937959][ C3] -> (&p->alloc_lock){+.+.}-{2:2} { [ 48.938104][ C3] HARDIRQ-ON-W at: [ 48.938208][ C3] __lock_acquire+0x797/0x1570 [ 48.938392][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.938563][ C3] _raw_spin_lock+0x30/0x40 [ 48.938744][ C3] set_mems_allowed+0x1d/0x210 [ 48.938920][ C3] kernel_init_freeable+0x72/0x310 [ 48.939092][ C3] kernel_init+0x20/0x200 [ 48.939269][ C3] ret_from_fork+0x31/0x70 [ 48.939448][ C3] ret_from_fork_asm+0x1a/0x30 [ 48.939619][ C3] SOFTIRQ-ON-W at: [ 48.939721][ C3] __lock_acquire+0x797/0x1570 [ 48.939895][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.940064][ C3] _raw_spin_lock+0x30/0x40 [ 48.940237][ C3] set_mems_allowed+0x1d/0x210 [ 48.940409][ C3] kernel_init_freeable+0x72/0x310 [ 48.940581][ C3] kernel_init+0x20/0x200 [ 48.940752][ C3] ret_from_fork+0x31/0x70 [ 48.940935][ C3] ret_from_fork_asm+0x1a/0x30 [ 48.941214][ C3] INITIAL USE at: [ 48.941323][ C3] __lock_acquire+0x797/0x1570 [ 48.941521][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.941695][ C3] _raw_spin_lock+0x30/0x40 [ 48.941871][ C3] set_mems_allowed+0x1d/0x210 [ 48.942047][ C3] kernel_init_freeable+0x72/0x310 [ 48.942216][ C3] kernel_init+0x20/0x200 [ 48.942407][ C3] ret_from_fork+0x31/0x70 [ 48.942598][ C3] ret_from_fork_asm+0x1a/0x30 [ 48.942771][ C3] } [ 48.942843][ C3] ... key at: [] __key.387+0x0/0x40 [ 48.943050][ C3] ... acquired at: [ 48.943152][ C3] __lock_acquire+0xaf0/0x1570 [ 48.943292][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.943433][ C3] _raw_spin_lock+0x30/0x40 [ 48.943581][ C3] __get_task_comm+0x27/0x70 [ 48.943732][ C3] ref_tracker_alloc+0x2ee/0x490 [ 48.943880][ C3] linkwatch_fire_event+0x196/0x200 [ 48.944032][ C3] veth_newlink+0x367/0x830 [veth] [ 48.944191][ C3] rtnl_newlink_create+0x341/0x850 [ 48.944345][ C3] __rtnl_newlink+0xac9/0xd80 [ 48.944493][ C3] rtnl_newlink+0x63/0xa0 [ 48.944643][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.944798][ C3] netlink_rcv_skb+0x130/0x360 [ 48.944951][ C3] netlink_unicast+0x449/0x710 [ 48.945105][ C3] netlink_sendmsg+0x723/0xbe0 [ 48.945253][ C3] ____sys_sendmsg+0x7b2/0xa10 [ 48.945402][ C3] ___sys_sendmsg+0xee/0x170 [ 48.945554][ C3] __sys_sendmsg+0xcd/0x170 [ 48.945700][ C3] do_syscall_64+0xc6/0x1e0 [ 48.945847][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.946018][ C3] [ 48.946090][ C3] -> (lweventlist_lock){....}-{2:2} { [ 48.946230][ C3] INITIAL USE at: [ 48.946331][ C3] __lock_acquire+0x797/0x1570 [ 48.946527][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.946807][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 48.946991][ C3] linkwatch_sync_dev+0x29/0x1f0 [ 48.947165][ C3] rtnl_getlink+0x4c9/0x970 [ 48.947340][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.947597][ C3] netlink_rcv_skb+0x130/0x360 [ 48.947766][ C3] netlink_unicast+0x449/0x710 [ 48.947950][ C3] netlink_sendmsg+0x723/0xbe0 [ 48.948222][ C3] __sys_sendto+0x37d/0x410 [ 48.948401][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 48.948587][ C3] do_syscall_64+0xc6/0x1e0 [ 48.948764][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.948974][ C3] } [ 48.949043][ C3] ... key at: [] lweventlist_lock+0x18/0x60 [ 48.949253][ C3] ... acquired at: [ 48.949357][ C3] __lock_acquire+0xaf0/0x1570 [ 48.949500][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.949647][ C3] _raw_spin_lock_irqsave+0x3f/0x60 [ 48.949788][ C3] linkwatch_fire_event+0x74/0x200 [ 48.949930][ C3] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 48.950236][ C3] br_set_mac_address+0x1f3/0x260 [bridge] [ 48.950466][ C3] dev_set_mac_address+0x28a/0x410 [ 48.950615][ C3] dev_set_mac_address_user+0x31/0x50 [ 48.950756][ C3] do_setlink+0x17b4/0x21e0 [ 48.950911][ C3] rtnl_setlink+0x1f7/0x310 [ 48.951067][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.951202][ C3] netlink_rcv_skb+0x130/0x360 [ 48.951343][ C3] netlink_unicast+0x449/0x710 [ 48.951493][ C3] netlink_sendmsg+0x723/0xbe0 [ 48.951636][ C3] __sys_sendto+0x37d/0x410 [ 48.951773][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 48.951916][ C3] do_syscall_64+0xc6/0x1e0 [ 48.952184][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.952368][ C3] [ 48.952442][ C3] -> (&br->lock){+.-.}-{2:2} { [ 48.952589][ C3] HARDIRQ-ON-W at: [ 48.952693][ C3] __lock_acquire+0x797/0x1570 [ 48.952884][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.953071][ C3] _raw_spin_lock_bh+0x38/0x50 [ 48.953246][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 48.953526][ C3] dev_set_mac_address+0x28a/0x410 [ 48.953772][ C3] dev_set_mac_address_user+0x31/0x50 [ 48.954047][ C3] do_setlink+0x17b4/0x21e0 [ 48.954552][ C3] rtnl_setlink+0x1f7/0x310 [ 48.954811][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.955071][ C3] netlink_rcv_skb+0x130/0x360 [ 48.955347][ C3] netlink_unicast+0x449/0x710 [ 48.955762][ C3] netlink_sendmsg+0x723/0xbe0 [ 48.956035][ C3] __sys_sendto+0x37d/0x410 [ 48.956332][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 48.956733][ C3] do_syscall_64+0xc6/0x1e0 [ 48.957010][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.957483][ C3] IN-SOFTIRQ-W at: [ 48.957651][ C3] __lock_acquire+0x797/0x1570 [ 48.957929][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.958269][ C3] _raw_spin_lock+0x30/0x40 [ 48.958527][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.958939][ C3] call_timer_fn+0x13b/0x230 [ 48.959243][ C3] __run_timers+0x545/0x810 [ 48.959661][ C3] run_timer_softirq+0xe8/0x1b0 [ 48.959964][ C3] __do_softirq+0x1f8/0x5df [ 48.960251][ C3] irq_exit_rcu+0x97/0xc0 [ 48.960547][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.961146][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.961494][ C3] default_idle+0xf/0x20 [ 48.961795][ C3] default_idle_call+0x6d/0xb0 [ 48.962216][ C3] cpuidle_idle_call+0x1f4/0x280 [ 48.962418][ C3] do_idle+0xf9/0x160 [ 48.962569][ C3] cpu_startup_entry+0x54/0x60 [ 48.962759][ C3] start_secondary+0x21c/0x2b0 [ 48.963121][ C3] common_startup_64+0x12c/0x138 [ 48.963312][ C3] INITIAL USE at: [ 48.963428][ C3] __lock_acquire+0x797/0x1570 [ 48.963616][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.963802][ C3] _raw_spin_lock_bh+0x38/0x50 [ 48.964063][ C3] br_set_mac_address+0xd2/0x260 [bridge] [ 48.964329][ C3] dev_set_mac_address+0x28a/0x410 [ 48.964611][ C3] dev_set_mac_address_user+0x31/0x50 [ 48.964808][ C3] do_setlink+0x17b4/0x21e0 [ 48.965012][ C3] rtnl_setlink+0x1f7/0x310 [ 48.965299][ C3] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 48.965501][ C3] netlink_rcv_skb+0x130/0x360 [ 48.965697][ C3] netlink_unicast+0x449/0x710 [ 48.965887][ C3] netlink_sendmsg+0x723/0xbe0 [ 48.966129][ C3] __sys_sendto+0x37d/0x410 [ 48.966328][ C3] __x64_sys_sendto+0xe0/0x1c0 [ 48.966525][ C3] do_syscall_64+0xc6/0x1e0 [ 48.966740][ C3] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 48.967054][ C3] } [ 48.967131][ C3] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 48.967540][ C3] ... acquired at: [ 48.967660][ C3] mark_lock+0x28d/0x3e0 [ 48.967819][ C3] mark_usage+0xd9/0x2a0 [ 48.967974][ C3] __lock_acquire+0x797/0x1570 [ 48.968127][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.968287][ C3] _raw_spin_lock+0x30/0x40 [ 48.968511][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.968822][ C3] call_timer_fn+0x13b/0x230 [ 48.968966][ C3] __run_timers+0x545/0x810 [ 48.969110][ C3] run_timer_softirq+0xe8/0x1b0 [ 48.969253][ C3] __do_softirq+0x1f8/0x5df [ 48.969388][ C3] irq_exit_rcu+0x97/0xc0 [ 48.969528][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.969703][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.969963][ C3] default_idle+0xf/0x20 [ 48.970108][ C3] default_idle_call+0x6d/0xb0 [ 48.970244][ C3] cpuidle_idle_call+0x1f4/0x280 [ 48.970381][ C3] do_idle+0xf9/0x160 [ 48.970564][ C3] cpu_startup_entry+0x54/0x60 [ 48.970702][ C3] start_secondary+0x21c/0x2b0 [ 48.970839][ C3] common_startup_64+0x12c/0x138 [ 48.971108][ C3] [ 48.971184][ C3] [ 48.971184][ C3] stack backtrace: [ 48.971450][ C3] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.9.0-rc1-virtme #1 [ 48.971669][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 48.972055][ C3] Call Trace: [ 48.972253][ C3] [ 48.972325][ C3] dump_stack_lvl+0x82/0xd0 [ 48.972481][ C3] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 48.972658][ C3] ? common_startup_64+0x12c/0x138 [ 48.972805][ C3] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 48.972983][ C3] ? __pfx_usage_skip+0x10/0x10 [ 48.973125][ C3] ? __pfx_usage_match+0x10/0x10 [ 48.973347][ C3] ? arch_stack_walk+0x8c/0xf0 [ 48.973575][ C3] mark_lock_irq+0x4cd/0xa10 [ 48.973718][ C3] ? __pfx_mark_lock_irq+0x10/0x10 [ 48.973856][ C3] ? stack_trace_save+0x94/0xd0 [ 48.974001][ C3] ? add_chain_cache+0x248/0x8b0 [ 48.974140][ C3] ? save_trace+0x8f/0x5b0 [ 48.974286][ C3] mark_lock+0x28d/0x3e0 [ 48.974396][ C3] mark_usage+0xd9/0x2a0 [ 48.974498][ C3] __lock_acquire+0x797/0x1570 [ 48.974736][ C3] ? __lock_acquire+0xaf0/0x1570 [ 48.974874][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.975134][ C3] lock_acquire.part.0+0xeb/0x330 [ 48.975276][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.975579][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 48.975722][ C3] ? trace_lock_acquire+0x135/0x1c0 [ 48.975857][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.976068][ C3] ? lock_acquire+0x32/0xc0 [ 48.976216][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.976441][ C3] _raw_spin_lock+0x30/0x40 [ 48.976586][ C3] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.976800][ C3] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 48.977098][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.977338][ C3] call_timer_fn+0x13b/0x230 [ 48.977479][ C3] ? call_timer_fn+0xe8/0x230 [ 48.977687][ C3] ? call_timer_fn+0xe8/0x230 [ 48.977820][ C3] ? __pfx_call_timer_fn+0x10/0x10 [ 48.977953][ C3] ? mark_lock+0x38/0x3e0 [ 48.978065][ C3] __run_timers+0x545/0x810 [ 48.978204][ C3] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 48.978525][ C3] ? __pfx___run_timers+0x10/0x10 [ 48.978663][ C3] ? do_raw_spin_lock+0x131/0x270 [ 48.978800][ C3] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 48.978933][ C3] ? lock_acquire+0x32/0xc0 [ 48.979153][ C3] ? run_timer_softirq+0xe0/0x1b0 [ 48.979290][ C3] run_timer_softirq+0xe8/0x1b0 [ 48.979428][ C3] __do_softirq+0x1f8/0x5df [ 48.979571][ C3] irq_exit_rcu+0x97/0xc0 [ 48.979833][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 48.979989][ C3] [ 48.980066][ C3] [ 48.980140][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 48.980333][ C3] RIP: 0010:default_idle+0xf/0x20 [ 48.980581][ C3] 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 [ 48.981131][ C3] RSP: 0018:ffffc9000016fdf8 EFLAGS: 00000246 [ 48.981410][ C3] RAX: 000000000009bb0f RBX: 1ffff9200002dfc1 RCX: ffffffffb590e9d5 [ 48.981737][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb32aa4a4 [ 48.981970][ C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005f3709c [ 48.982210][ C3] R10: ffff88802f9b84e3 R11: ffff88802f9bdc80 R12: 0000000000000000 [ 48.982453][ C3] R13: ffff888001b88040 R14: dffffc0000000000 R15: 0000000000000000 [ 48.982687][ C3] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 48.983015][ C3] ? cpuidle_idle_call+0x1f4/0x280 [ 48.983175][ C3] default_idle_call+0x6d/0xb0 [ 48.983323][ C3] cpuidle_idle_call+0x1f4/0x280 [ 48.983479][ C3] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 48.983636][ C3] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 48.983793][ C3] do_idle+0xf9/0x160 [ 48.983907][ C3] cpu_startup_entry+0x54/0x60 [ 48.984154][ C3] start_secondary+0x21c/0x2b0 [ 48.984305][ C3] ? __pfx_start_secondary+0x10/0x10 [ 48.984467][ C3] common_startup_64+0x12c/0x138 [ 48.984620][ C3] [ 114.721536][ T2098] br0: port 2(veth2) entered disabled state [ 114.824158][ T2099] veth2: left allmulticast mode [ 114.824338][ T2099] veth2: left promiscuous mode [ 114.824600][ T2099] br0: port 2(veth2) entered disabled state [ 114.929174][ T2100] br0: port 1(veth1) entered disabled state [ 115.047872][ T2101] veth1: left allmulticast mode [ 115.049239][ T2101] veth1: left promiscuous mode [ 115.049926][ T2101] br0: port 1(veth1) entered disabled state [ 115.873873][ T2111] br0: port 1(veth1) entered blocking state [ 115.874110][ T2111] br0: port 1(veth1) entered disabled state [ 115.874355][ T2111] veth1: entered allmulticast mode [ 115.875939][ T2111] veth1: entered promiscuous mode [ 115.978289][ T63] br0: port 1(veth1) entered blocking state [ 115.978554][ T63] br0: port 1(veth1) entered forwarding state [ 116.407618][ T2116] br0: port 2(veth2) entered blocking state [ 116.407850][ T2116] br0: port 2(veth2) entered disabled state [ 116.408057][ T2116] veth2: entered allmulticast mode [ 116.409520][ T2116] veth2: entered promiscuous mode [ 116.513603][ T7] br0: port 2(veth2) entered blocking state [ 116.513848][ T7] br0: port 2(veth2) entered forwarding state [ 195.592968][ T3908] br0: port 2(veth2) entered disabled state [ 195.702666][ T3910] veth2: left allmulticast mode [ 195.702963][ T3910] veth2: left promiscuous mode [ 195.703399][ T3910] br0: port 2(veth2) entered disabled state [ 195.808791][ T3911] br0: port 1(veth1) entered disabled state [ 195.917140][ T3912] veth1: left allmulticast mode [ 195.917388][ T3912] veth1: left promiscuous mode [ 195.917642][ T3912] br0: port 1(veth1) entered disabled state [ 196.699208][ T3922] br0: port 1(veth1) entered blocking state [ 196.699415][ T3922] br0: port 1(veth1) entered disabled state [ 196.699620][ T3922] veth1: entered allmulticast mode [ 196.701152][ T3922] veth1: entered promiscuous mode [ 196.806611][ T63] br0: port 1(veth1) entered blocking state [ 196.806860][ T63] br0: port 1(veth1) entered forwarding state [ 197.191466][ T3927] br0: port 2(veth2) entered blocking state [ 197.191820][ T3927] br0: port 2(veth2) entered disabled state [ 197.192112][ T3927] veth2: entered allmulticast mode [ 197.194387][ T3927] veth2: entered promiscuous mode [ 197.303611][ T24] br0: port 2(veth2) entered blocking state [ 197.303857][ T24] br0: port 2(veth2) entered forwarding state [ 365.397436][ T7776] br0: port 2(veth2) entered disabled state [ 365.501434][ T7777] veth2: left allmulticast mode [ 365.501635][ T7777] veth2: left promiscuous mode [ 365.501894][ T7777] br0: port 2(veth2) entered disabled state [ 365.605204][ T7778] br0: port 1(veth1) entered disabled state [ 365.703319][ T7779] veth1: left allmulticast mode [ 365.703495][ T7779] veth1: left promiscuous mode [ 365.703747][ T7779] br0: port 1(veth1) entered disabled state