[ 34.113551][ T277] 8021q: 802.1Q VLAN Support v1.8 [ 37.896847][ T312] br0: port 1(veth1) entered blocking state [ 37.897267][ T312] br0: port 1(veth1) entered disabled state [ 37.897938][ T312] veth1: entered allmulticast mode [ 37.899980][ T312] veth1: entered promiscuous mode [ 38.047071][ T42] br0: port 1(veth1) entered blocking state [ 38.047657][ T42] br0: port 1(veth1) entered forwarding state [ 38.336526][ T315] br0: port 2(veth2) entered blocking state [ 38.336873][ T315] br0: port 2(veth2) entered disabled state [ 38.337169][ T315] veth2: entered allmulticast mode [ 38.339202][ T315] veth2: entered promiscuous mode [ 38.496265][ T42] br0: port 2(veth2) entered blocking state [ 38.496939][ T42] br0: port 2(veth2) entered forwarding state [ 53.240868][ C1] [ 53.241060][ C1] ======================================================== [ 53.241394][ C1] WARNING: possible irq lock inversion dependency detected [ 53.241721][ C1] 6.9.0-rc1-virtme #1 Not tainted [ 53.241935][ C1] -------------------------------------------------------- [ 53.242272][ C1] swapper/1/0 just changed the state of lock: [ 53.242544][ C1] ffff888007a2ac38 (&br->lock){+.-.}-{2:2}, at: br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.243122][ C1] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 53.243458][ C1] (&p->alloc_lock){+.+.}-{2:2} [ 53.243465][ C1] [ 53.243465][ C1] [ 53.243465][ C1] and interrupts could create inverse lock ordering between them. [ 53.243465][ C1] [ 53.244272][ C1] [ 53.244272][ C1] other info that might help us debug this: [ 53.244604][ C1] Chain exists of: [ 53.244604][ C1] &br->lock --> lweventlist_lock --> &p->alloc_lock [ 53.244604][ C1] [ 53.245124][ C1] Possible interrupt unsafe locking scenario: [ 53.245124][ C1] [ 53.245462][ C1] CPU0 CPU1 [ 53.245677][ C1] ---- ---- [ 53.245891][ C1] lock(&p->alloc_lock); [ 53.246059][ C1] local_irq_disable(); [ 53.246320][ C1] lock(&br->lock); [ 53.246602][ C1] lock(lweventlist_lock); [ 53.246874][ C1] [ 53.247040][ C1] lock(&br->lock); [ 53.247203][ C1] [ 53.247203][ C1] *** DEADLOCK *** [ 53.247203][ C1] [ 53.247520][ C1] 1 lock held by swapper/1/0: [ 53.247738][ C1] #0: ffffc900001d8d68 ((&p->forward_delay_timer)){+.-.}-{0:0}, at: call_timer_fn+0xe8/0x230 [ 53.248190][ C1] [ 53.248190][ C1] the shortest dependencies between 2nd lock and 1st lock: [ 53.248560][ C1] -> (&p->alloc_lock){+.+.}-{2:2} { [ 53.248846][ C1] HARDIRQ-ON-W at: [ 53.249009][ C1] __lock_acquire+0x797/0x1570 [ 53.249290][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.249563][ C1] _raw_spin_lock+0x30/0x40 [ 53.249851][ C1] set_mems_allowed+0x1d/0x210 [ 53.250126][ C1] kernel_init_freeable+0x72/0x310 [ 53.250406][ C1] kernel_init+0x20/0x200 [ 53.250685][ C1] ret_from_fork+0x31/0x70 [ 53.250968][ C1] ret_from_fork_asm+0x1a/0x30 [ 53.251238][ C1] SOFTIRQ-ON-W at: [ 53.251404][ C1] __lock_acquire+0x797/0x1570 [ 53.251686][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.251954][ C1] _raw_spin_lock+0x30/0x40 [ 53.252229][ C1] set_mems_allowed+0x1d/0x210 [ 53.252492][ C1] kernel_init_freeable+0x72/0x310 [ 53.252761][ C1] kernel_init+0x20/0x200 [ 53.253038][ C1] ret_from_fork+0x31/0x70 [ 53.253316][ C1] ret_from_fork_asm+0x1a/0x30 [ 53.253581][ C1] INITIAL USE at: [ 53.253748][ C1] __lock_acquire+0x797/0x1570 [ 53.254018][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.254292][ C1] _raw_spin_lock+0x30/0x40 [ 53.254567][ C1] set_mems_allowed+0x1d/0x210 [ 53.254850][ C1] kernel_init_freeable+0x72/0x310 [ 53.255127][ C1] kernel_init+0x20/0x200 [ 53.255397][ C1] ret_from_fork+0x31/0x70 [ 53.255671][ C1] ret_from_fork_asm+0x1a/0x30 [ 53.255945][ C1] } [ 53.256066][ C1] ... key at: [] __key.387+0x0/0x40 [ 53.256414][ C1] ... acquired at: [ 53.256580][ C1] __lock_acquire+0xaf0/0x1570 [ 53.256808][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.257026][ C1] _raw_spin_lock+0x30/0x40 [ 53.257246][ C1] __get_task_comm+0x27/0x70 [ 53.257463][ C1] ref_tracker_alloc+0x2ee/0x490 [ 53.257685][ C1] linkwatch_fire_event+0x196/0x200 [ 53.257910][ C1] veth_newlink+0x367/0x830 [veth] [ 53.258141][ C1] rtnl_newlink_create+0x341/0x850 [ 53.258360][ C1] __rtnl_newlink+0xac9/0xd80 [ 53.258573][ C1] rtnl_newlink+0x63/0xa0 [ 53.258817][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 53.259029][ C1] netlink_rcv_skb+0x130/0x360 [ 53.259251][ C1] netlink_unicast+0x449/0x710 [ 53.259464][ C1] netlink_sendmsg+0x723/0xbe0 [ 53.259677][ C1] ____sys_sendmsg+0x7b2/0xa10 [ 53.259897][ C1] ___sys_sendmsg+0xee/0x170 [ 53.260121][ C1] __sys_sendmsg+0xcd/0x170 [ 53.260334][ C1] do_syscall_64+0xc6/0x1e0 [ 53.260552][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 53.260852][ C1] [ 53.260980][ C1] -> (lweventlist_lock){....}-{2:2} { [ 53.261214][ C1] INITIAL USE at: [ 53.261381][ C1] __lock_acquire+0x797/0x1570 [ 53.261658][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.261941][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 53.262209][ C1] linkwatch_sync_dev+0x29/0x1f0 [ 53.262512][ C1] rtnl_getlink+0x4c9/0x970 [ 53.262783][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 53.263052][ C1] netlink_rcv_skb+0x130/0x360 [ 53.263325][ C1] netlink_unicast+0x449/0x710 [ 53.263617][ C1] netlink_sendmsg+0x723/0xbe0 [ 53.263896][ C1] __sys_sendto+0x37d/0x410 [ 53.264172][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 53.264437][ C1] do_syscall_64+0xc6/0x1e0 [ 53.264709][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 53.265030][ C1] } [ 53.265154][ C1] ... key at: [] lweventlist_lock+0x18/0x60 [ 53.265482][ C1] ... acquired at: [ 53.265640][ C1] __lock_acquire+0xaf0/0x1570 [ 53.265862][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.266080][ C1] _raw_spin_lock_irqsave+0x3f/0x60 [ 53.266298][ C1] linkwatch_fire_event+0x74/0x200 [ 53.266508][ C1] br_stp_change_bridge_id+0x25f/0x360 [bridge] [ 53.266880][ C1] br_set_mac_address+0x1f3/0x260 [bridge] [ 53.267214][ C1] dev_set_mac_address+0x28a/0x410 [ 53.267436][ C1] dev_set_mac_address_user+0x31/0x50 [ 53.267647][ C1] do_setlink+0x17b4/0x21e0 [ 53.267859][ C1] rtnl_setlink+0x1f7/0x310 [ 53.268070][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 53.268279][ C1] netlink_rcv_skb+0x130/0x360 [ 53.268494][ C1] netlink_unicast+0x449/0x710 [ 53.268729][ C1] netlink_sendmsg+0x723/0xbe0 [ 53.268944][ C1] __sys_sendto+0x37d/0x410 [ 53.269162][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 53.269380][ C1] do_syscall_64+0xc6/0x1e0 [ 53.269599][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 53.269867][ C1] [ 53.269982][ C1] -> (&br->lock){+.-.}-{2:2} { [ 53.270209][ C1] HARDIRQ-ON-W at: [ 53.270375][ C1] __lock_acquire+0x797/0x1570 [ 53.270656][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.270924][ C1] _raw_spin_lock_bh+0x38/0x50 [ 53.271196][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 53.271590][ C1] dev_set_mac_address+0x28a/0x410 [ 53.271863][ C1] dev_set_mac_address_user+0x31/0x50 [ 53.272135][ C1] do_setlink+0x17b4/0x21e0 [ 53.272409][ C1] rtnl_setlink+0x1f7/0x310 [ 53.272676][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 53.272941][ C1] netlink_rcv_skb+0x130/0x360 [ 53.273210][ C1] netlink_unicast+0x449/0x710 [ 53.273473][ C1] netlink_sendmsg+0x723/0xbe0 [ 53.273742][ C1] __sys_sendto+0x37d/0x410 [ 53.274018][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 53.274294][ C1] do_syscall_64+0xc6/0x1e0 [ 53.274560][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 53.274880][ C1] IN-SOFTIRQ-W at: [ 53.275044][ C1] __lock_acquire+0x797/0x1570 [ 53.275309][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.275575][ C1] _raw_spin_lock+0x30/0x40 [ 53.275843][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.276243][ C1] call_timer_fn+0x13b/0x230 [ 53.276511][ C1] __run_timers+0x545/0x810 [ 53.276781][ C1] run_timer_softirq+0xe8/0x1b0 [ 53.277047][ C1] __do_softirq+0x1f8/0x5df [ 53.277312][ C1] irq_exit_rcu+0x97/0xc0 [ 53.277579][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 53.277910][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 53.278230][ C1] default_idle+0xf/0x20 [ 53.278494][ C1] default_idle_call+0x6d/0xb0 [ 53.278775][ C1] cpuidle_idle_call+0x1f4/0x280 [ 53.279041][ C1] do_idle+0xf9/0x160 [ 53.279257][ C1] cpu_startup_entry+0x54/0x60 [ 53.279533][ C1] start_secondary+0x21c/0x2b0 [ 53.279804][ C1] common_startup_64+0x12c/0x138 [ 53.280073][ C1] INITIAL USE at: [ 53.280235][ C1] __lock_acquire+0x797/0x1570 [ 53.280505][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.280774][ C1] _raw_spin_lock_bh+0x38/0x50 [ 53.281047][ C1] br_set_mac_address+0xd2/0x260 [bridge] [ 53.281449][ C1] dev_set_mac_address+0x28a/0x410 [ 53.281719][ C1] dev_set_mac_address_user+0x31/0x50 [ 53.281990][ C1] do_setlink+0x17b4/0x21e0 [ 53.282253][ C1] rtnl_setlink+0x1f7/0x310 [ 53.282519][ C1] rtnetlink_rcv_msg+0x2fb/0xbf0 [ 53.282782][ C1] netlink_rcv_skb+0x130/0x360 [ 53.283053][ C1] netlink_unicast+0x449/0x710 [ 53.283323][ C1] netlink_sendmsg+0x723/0xbe0 [ 53.283577][ C1] __sys_sendto+0x37d/0x410 [ 53.283844][ C1] __x64_sys_sendto+0xe0/0x1c0 [ 53.284110][ C1] do_syscall_64+0xc6/0x1e0 [ 53.284379][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 53.284698][ C1] } [ 53.284818][ C1] ... key at: [] __key.6+0x0/0xfffffffffffe5ac0 [bridge] [ 53.285258][ C1] ... acquired at: [ 53.285415][ C1] mark_lock+0x28d/0x3e0 [ 53.285632][ C1] mark_usage+0xd9/0x2a0 [ 53.285846][ C1] __lock_acquire+0x797/0x1570 [ 53.286067][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.286278][ C1] _raw_spin_lock+0x30/0x40 [ 53.286489][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.286833][ C1] call_timer_fn+0x13b/0x230 [ 53.287050][ C1] __run_timers+0x545/0x810 [ 53.287264][ C1] run_timer_softirq+0xe8/0x1b0 [ 53.287473][ C1] __do_softirq+0x1f8/0x5df [ 53.287683][ C1] irq_exit_rcu+0x97/0xc0 [ 53.287896][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 53.288162][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 53.288422][ C1] default_idle+0xf/0x20 [ 53.288652][ C1] default_idle_call+0x6d/0xb0 [ 53.288871][ C1] cpuidle_idle_call+0x1f4/0x280 [ 53.289086][ C1] do_idle+0xf9/0x160 [ 53.289245][ C1] cpu_startup_entry+0x54/0x60 [ 53.289457][ C1] start_secondary+0x21c/0x2b0 [ 53.289673][ C1] common_startup_64+0x12c/0x138 [ 53.289890][ C1] [ 53.290003][ C1] [ 53.290003][ C1] stack backtrace: [ 53.290264][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.9.0-rc1-virtme #1 [ 53.290599][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 53.291074][ C1] Call Trace: [ 53.291236][ C1] [ 53.291349][ C1] dump_stack_lvl+0x82/0xd0 [ 53.291586][ C1] print_irq_inversion_bug.part.0+0x3d9/0x570 [ 53.291854][ C1] ? common_startup_64+0x12c/0x138 [ 53.292069][ C1] ? __pfx_print_irq_inversion_bug.part.0+0x10/0x10 [ 53.292339][ C1] ? __pfx_usage_skip+0x10/0x10 [ 53.292555][ C1] ? __pfx_usage_match+0x10/0x10 [ 53.292766][ C1] ? arch_stack_walk+0x8c/0xf0 [ 53.292980][ C1] mark_lock_irq+0x4cd/0xa10 [ 53.293193][ C1] ? __pfx_mark_lock_irq+0x10/0x10 [ 53.293404][ C1] ? stack_trace_save+0x94/0xd0 [ 53.293625][ C1] ? add_chain_cache+0x248/0x8b0 [ 53.293842][ C1] ? save_trace+0x8f/0x5b0 [ 53.294070][ C1] mark_lock+0x28d/0x3e0 [ 53.294233][ C1] mark_usage+0xd9/0x2a0 [ 53.294393][ C1] __lock_acquire+0x797/0x1570 [ 53.294616][ C1] ? __lock_acquire+0xaf0/0x1570 [ 53.294835][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 53.295228][ C1] lock_acquire.part.0+0xeb/0x330 [ 53.295589][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.295927][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 53.296159][ C1] ? trace_lock_acquire+0x135/0x1c0 [ 53.296374][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.296866][ C1] ? lock_acquire+0x32/0xc0 [ 53.297084][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.297417][ C1] _raw_spin_lock+0x30/0x40 [ 53.297638][ C1] ? br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.297973][ C1] br_forward_delay_timer_expired+0x48/0x440 [bridge] [ 53.298316][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 53.298751][ C1] call_timer_fn+0x13b/0x230 [ 53.298976][ C1] ? call_timer_fn+0xe8/0x230 [ 53.299221][ C1] ? call_timer_fn+0xe8/0x230 [ 53.299437][ C1] ? __pfx_call_timer_fn+0x10/0x10 [ 53.299654][ C1] ? mark_lock+0x38/0x3e0 [ 53.299824][ C1] __run_timers+0x545/0x810 [ 53.300193][ C1] ? __pfx_br_forward_delay_timer_expired+0x10/0x10 [bridge] [ 53.300594][ C1] ? __pfx___run_timers+0x10/0x10 [ 53.300813][ C1] ? do_raw_spin_lock+0x131/0x270 [ 53.301026][ C1] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 53.301374][ C1] ? lock_acquire+0x32/0xc0 [ 53.301585][ C1] ? run_timer_softirq+0xe0/0x1b0 [ 53.301803][ C1] run_timer_softirq+0xe8/0x1b0 [ 53.302042][ C1] __do_softirq+0x1f8/0x5df [ 53.302425][ C1] irq_exit_rcu+0x97/0xc0 [ 53.302611][ C1] sysvec_apic_timer_interrupt+0x75/0x80 [ 53.302842][ C1] [ 53.302962][ C1] [ 53.303082][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 53.303508][ C1] RIP: 0010:default_idle+0xf/0x20 [ 53.303736][ C1] 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 93 20 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 [ 53.304659][ C1] RSP: 0018:ffffc9000014fdf8 EFLAGS: 00000246 [ 53.304935][ C1] RAX: 00000000000b194b RBX: 1ffff92000029fc1 RCX: ffffffffabb0f9e5 [ 53.305259][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffa94aa4a4 [ 53.305728][ C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c1709c [ 53.306050][ C1] R10: ffff8880360b84e3 R11: ffff8880360bdc80 R12: 0000000000000000 [ 53.306374][ C1] R13: ffff888001b7a300 R14: dffffc0000000000 R15: 0000000000000000 [ 53.306846][ C1] ? ct_kernel_exit.constprop.0+0xc5/0xf0 [ 53.307064][ C1] ? cpuidle_idle_call+0x1f4/0x280 [ 53.307281][ C1] default_idle_call+0x6d/0xb0 [ 53.307491][ C1] cpuidle_idle_call+0x1f4/0x280 [ 53.308001][ C1] ? __pfx_cpuidle_idle_call+0x10/0x10 [ 53.308216][ C1] ? tsc_verify_tsc_adjust+0x5e/0x2b0 [ 53.308456][ C1] do_idle+0xf9/0x160 [ 53.308633][ C1] cpu_startup_entry+0x54/0x60 [ 53.308854][ C1] start_secondary+0x21c/0x2b0 [ 53.309069][ C1] ? __pfx_start_secondary+0x10/0x10 [ 53.309284][ C1] common_startup_64+0x12c/0x138 [ 53.309516][ C1] [ 120.138880][ T2098] br0: port 2(veth2) entered disabled state [ 120.247264][ T2099] veth2: left allmulticast mode [ 120.247450][ T2099] veth2: left promiscuous mode [ 120.247720][ T2099] br0: port 2(veth2) entered disabled state [ 120.352058][ T2100] br0: port 1(veth1) entered disabled state [ 120.459162][ T2101] veth1: left allmulticast mode [ 120.459343][ T2101] veth1: left promiscuous mode [ 120.459613][ T2101] br0: port 1(veth1) entered disabled state [ 121.323208][ T2111] br0: port 1(veth1) entered blocking state [ 121.323592][ T2111] br0: port 1(veth1) entered disabled state [ 121.323991][ T2111] veth1: entered allmulticast mode [ 121.326452][ T2111] veth1: entered promiscuous mode [ 121.473750][ T42] br0: port 1(veth1) entered blocking state [ 121.474068][ T42] br0: port 1(veth1) entered forwarding state [ 121.911300][ T2116] br0: port 2(veth2) entered blocking state [ 121.911517][ T2116] br0: port 2(veth2) entered disabled state [ 121.911736][ T2116] veth2: entered allmulticast mode [ 121.913278][ T2116] veth2: entered promiscuous mode [ 122.023460][ T7] br0: port 2(veth2) entered blocking state [ 122.023812][ T7] br0: port 2(veth2) entered forwarding state [ 203.111584][ T3908] br0: port 2(veth2) entered disabled state [ 203.235548][ T3909] veth2: left allmulticast mode [ 203.235760][ T3909] veth2: left promiscuous mode [ 203.236047][ T3909] br0: port 2(veth2) entered disabled state [ 203.356017][ T3910] br0: port 1(veth1) entered disabled state [ 203.460491][ T3911] veth1: left allmulticast mode [ 203.460706][ T3911] veth1: left promiscuous mode [ 203.460997][ T3911] br0: port 1(veth1) entered disabled state [ 204.265023][ T3921] br0: port 1(veth1) entered blocking state [ 204.265273][ T3921] br0: port 1(veth1) entered disabled state [ 204.265549][ T3921] veth1: entered allmulticast mode [ 204.268284][ T3921] veth1: entered promiscuous mode [ 204.420513][ T7] br0: port 1(veth1) entered blocking state [ 204.420873][ T7] br0: port 1(veth1) entered forwarding state [ 204.890596][ T3926] br0: port 2(veth2) entered blocking state [ 204.890960][ T3926] br0: port 2(veth2) entered disabled state [ 204.891286][ T3926] veth2: entered allmulticast mode [ 204.895436][ T3926] veth2: entered promiscuous mode [ 205.006216][ T7] br0: port 2(veth2) entered blocking state [ 205.006461][ T7] br0: port 2(veth2) entered forwarding state [ 376.110671][ T7775] br0: port 2(veth2) entered disabled state [ 376.249296][ T7776] veth2: left allmulticast mode [ 376.249635][ T7776] veth2: left promiscuous mode [ 376.250057][ T7776] br0: port 2(veth2) entered disabled state [ 376.379529][ T7777] br0: port 1(veth1) entered disabled state [ 376.485496][ T7778] veth1: left allmulticast mode [ 376.485749][ T7778] veth1: left promiscuous mode [ 376.486034][ T7778] br0: port 1(veth1) entered disabled state