[ 289.244984][ T3196] br0: port 1(veth1) entered blocking state [ 289.245204][ T3196] br0: port 1(veth1) entered disabled state [ 289.245971][ T3196] veth1: entered allmulticast mode [ 289.248171][ T3196] veth1: entered promiscuous mode [ 289.279857][ T3198] br0: port 2(veth2) entered blocking state [ 289.280058][ T3198] br0: port 2(veth2) entered disabled state [ 289.280239][ T3198] veth2: entered allmulticast mode [ 289.281695][ T3198] veth2: entered promiscuous mode [ 289.347987][ T1152] br0: port 1(veth1) entered blocking state [ 289.348242][ T1152] br0: port 1(veth1) entered forwarding state [ 289.382659][ T46] br0: port 2(veth2) entered blocking state [ 289.382861][ T46] br0: port 2(veth2) entered forwarding state [ 294.382344][ C0] [ 294.382478][ C0] ======================================================== [ 294.382650][ C0] WARNING: possible irq lock inversion dependency detected [ 294.382789][ C0] 7.1.0-rc5-virtme #1 Not tainted [ 294.382884][ C0] -------------------------------------------------------- [ 294.383037][ C0] swapper/0/0 just changed the state of lock: [ 294.383159][ C0] ff11000012d32578 (&ndev->lock){++-.}-{3:3}, at: addrconf_rs_timer+0xb0/0x770 [ 294.383337][ C0] but this lock took another, SOFTIRQ-unsafe lock in the past: [ 294.383479][ C0] (acaddr_hash_lock){+.+.}-{3:3} [ 294.383481][ C0] [ 294.383481][ C0] [ 294.383481][ C0] and interrupts could create inverse lock ordering between them. [ 294.383481][ C0] [ 294.383856][ C0] [ 294.383856][ C0] other info that might help us debug this: [ 294.383996][ C0] Possible interrupt unsafe locking scenario: [ 294.383996][ C0] [ 294.384135][ C0] CPU0 CPU1 [ 294.384231][ C0] ---- ---- [ 294.384322][ C0] lock(acaddr_hash_lock); [ 294.384418][ C0] local_irq_disable(); [ 294.384536][ C0] lock(&ndev->lock); [ 294.384654][ C0] lock(acaddr_hash_lock); [ 294.384769][ C0] [ 294.384840][ C0] lock(&ndev->lock); [ 294.384908][ C0] [ 294.384908][ C0] *** DEADLOCK *** [ 294.384908][ C0] [ 294.385046][ C0] 1 lock held by swapper/0/0: [ 294.385138][ C0] #0: ffa0000000007c90 ((&ndev->rs_timer)){+.-.}-{0:0}, at: call_timer_fn+0x113/0x4f0 [ 294.385310][ C0] [ 294.385310][ C0] the shortest dependencies between 2nd lock and 1st lock: [ 294.385471][ C0] -> (acaddr_hash_lock){+.+.}-{3:3} { [ 294.385576][ C0] HARDIRQ-ON-W at: [ 294.385647][ C0] __lock_acquire+0x378/0xc10 [ 294.385764][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.385882][ C0] _raw_spin_lock+0x33/0x40 [ 294.386006][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 294.386142][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 294.386259][ C0] addrconf_join_anycast+0x1bc/0x260 [ 294.386373][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 294.386490][ C0] addrconf_dad_completed+0x14b/0xe10 [ 294.386634][ C0] addrconf_dad_work+0x3c1/0x930 [ 294.386751][ C0] process_one_work+0xdf8/0x1410 [ 294.386868][ C0] worker_thread+0x4f1/0xd60 [ 294.386988][ C0] kthread+0x367/0x460 [ 294.387103][ C0] ret_from_fork+0x474/0x6b0 [ 294.387221][ C0] ret_from_fork_asm+0x11/0x20 [ 294.387336][ C0] SOFTIRQ-ON-W at: [ 294.387404][ C0] __lock_acquire+0x378/0xc10 [ 294.387523][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.387642][ C0] _raw_spin_lock+0x33/0x40 [ 294.387756][ C0] __ipv6_dev_ac_dec+0x236/0x5d0 [ 294.387877][ C0] addrconf_leave_anycast+0x1bc/0x260 [ 294.388018][ C0] __ipv6_ifa_notify+0x6b4/0xad0 [ 294.388131][ C0] addrconf_ifdown.isra.0+0xa70/0x15f0 [ 294.388268][ C0] addrconf_notify+0x2c8/0xf30 [ 294.388386][ C0] notifier_call_chain+0xb0/0x320 [ 294.388502][ C0] __dev_notify_flags+0x165/0x280 [ 294.388627][ C0] netif_change_flags+0xfe/0x190 [ 294.388741][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 294.388855][ C0] rtnl_newlink+0x8d1/0xef0 [ 294.388967][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 294.389085][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 294.389205][ C0] netlink_unicast+0x486/0x750 [ 294.389322][ C0] netlink_sendmsg+0x735/0xc60 [ 294.389439][ C0] ____sys_sendmsg+0x419/0x850 [ 294.389559][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 294.389684][ C0] __sys_sendmsg+0x145/0x1f0 [ 294.389802][ C0] do_syscall_64+0x117/0x590 [ 294.389924][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 294.390062][ C0] INITIAL USE at: [ 294.390130][ C0] __lock_acquire+0x378/0xc10 [ 294.390246][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.390366][ C0] _raw_spin_lock+0x33/0x40 [ 294.390478][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 294.390617][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 294.390729][ C0] addrconf_join_anycast+0x1bc/0x260 [ 294.390842][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 294.390961][ C0] addrconf_dad_completed+0x14b/0xe10 [ 294.391080][ C0] addrconf_dad_work+0x3c1/0x930 [ 294.391201][ C0] process_one_work+0xdf8/0x1410 [ 294.391324][ C0] worker_thread+0x4f1/0xd60 [ 294.391449][ C0] kthread+0x367/0x460 [ 294.391563][ C0] ret_from_fork+0x474/0x6b0 [ 294.391686][ C0] ret_from_fork_asm+0x11/0x20 [ 294.391809][ C0] } [ 294.391856][ C0] ... key at: [] acaddr_hash_lock+0x18/0x45a0 [ 294.392001][ C0] ... acquired at: [ 294.392069][ C0] __lock_acquire+0x508/0xc10 [ 294.392160][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.392257][ C0] _raw_spin_lock+0x33/0x40 [ 294.392348][ C0] ipv6_add_acaddr_hash.isra.0+0x16d/0x350 [ 294.392459][ C0] __ipv6_dev_ac_inc+0x57e/0x930 [ 294.392557][ C0] addrconf_join_anycast+0x1bc/0x260 [ 294.392656][ C0] __ipv6_ifa_notify+0x75b/0xad0 [ 294.392751][ C0] addrconf_dad_completed+0x14b/0xe10 [ 294.392845][ C0] addrconf_dad_work+0x3c1/0x930 [ 294.392939][ C0] process_one_work+0xdf8/0x1410 [ 294.393039][ C0] worker_thread+0x4f1/0xd60 [ 294.393133][ C0] kthread+0x367/0x460 [ 294.393200][ C0] ret_from_fork+0x474/0x6b0 [ 294.393294][ C0] ret_from_fork_asm+0x11/0x20 [ 294.393384][ C0] [ 294.393430][ C0] -> (&ndev->lock){++-.}-{3:3} { [ 294.393527][ C0] HARDIRQ-ON-W at: [ 294.393607][ C0] __lock_acquire+0x378/0xc10 [ 294.393723][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.393845][ C0] _raw_write_lock_bh+0x38/0x50 [ 294.393962][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 294.394076][ C0] addrconf_notify+0x151/0xf30 [ 294.394191][ C0] notifier_call_chain+0xb0/0x320 [ 294.394307][ C0] __dev_notify_flags+0xde/0x280 [ 294.394418][ C0] netif_change_flags+0xfe/0x190 [ 294.394539][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 294.394661][ C0] rtnl_newlink+0x8d1/0xef0 [ 294.394774][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 294.394886][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 294.395005][ C0] netlink_unicast+0x486/0x750 [ 294.395125][ C0] netlink_sendmsg+0x735/0xc60 [ 294.395239][ C0] ____sys_sendmsg+0x419/0x850 [ 294.395352][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 294.395471][ C0] __sys_sendmsg+0x145/0x1f0 [ 294.395591][ C0] do_syscall_64+0x117/0x590 [ 294.395707][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 294.395853][ C0] HARDIRQ-ON-R at: [ 294.395921][ C0] __lock_acquire+0x378/0xc10 [ 294.396037][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.396155][ C0] _raw_read_lock_bh+0x44/0x80 [ 294.396274][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 294.396412][ C0] inet6_fill_link_af+0x5c/0xe0 [ 294.396530][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 294.396666][ C0] rtnl_getlink+0x9c9/0xeb0 [ 294.396782][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 294.396901][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 294.397022][ C0] netlink_unicast+0x486/0x750 [ 294.397137][ C0] netlink_sendmsg+0x735/0xc60 [ 294.397258][ C0] ____sys_sendmsg+0x419/0x850 [ 294.397374][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 294.397492][ C0] __sys_sendmsg+0x145/0x1f0 [ 294.397617][ C0] do_syscall_64+0x117/0x590 [ 294.397729][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 294.397872][ C0] IN-SOFTIRQ-W at: [ 294.397939][ C0] __lock_acquire+0x378/0xc10 [ 294.398057][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.398174][ C0] _raw_write_lock+0x33/0x40 [ 294.398293][ C0] addrconf_rs_timer+0xb0/0x770 [ 294.398410][ C0] call_timer_fn+0x163/0x4f0 [ 294.398529][ C0] __run_timers+0x68f/0xab0 [ 294.398648][ C0] run_timer_softirq+0xf0/0x160 [ 294.398764][ C0] handle_softirqs+0x1d8/0x940 [ 294.398883][ C0] __irq_exit_rcu+0x103/0x1c0 [ 294.399005][ C0] irq_exit_rcu+0xe/0x30 [ 294.399118][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 294.399253][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 294.399391][ C0] pv_native_safe_halt+0xf/0x10 [ 294.399508][ C0] default_idle+0x9/0x10 [ 294.399630][ C0] default_idle_call+0x6e/0xb0 [ 294.399749][ C0] cpuidle_idle_call.constprop.0+0x237/0x410 [ 294.399893][ C0] do_idle+0xf5/0x160 [ 294.399988][ C0] cpu_startup_entry+0x53/0x70 [ 294.400102][ C0] rest_init+0x1f7/0x200 [ 294.400215][ C0] start_kernel+0x3ad/0x3b0 [ 294.400329][ C0] x86_64_start_reservations+0x24/0x30 [ 294.400449][ C0] x86_64_start_kernel+0x12b/0x130 [ 294.400573][ C0] common_startup_64+0x13e/0x148 [ 294.400692][ C0] INITIAL USE at: [ 294.400764][ C0] __lock_acquire+0x378/0xc10 [ 294.400879][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.400997][ C0] _raw_write_lock_bh+0x38/0x50 [ 294.401112][ C0] addrconf_permanent_addr+0x108/0x9c0 [ 294.401225][ C0] addrconf_notify+0x151/0xf30 [ 294.401337][ C0] notifier_call_chain+0xb0/0x320 [ 294.401449][ C0] __dev_notify_flags+0xde/0x280 [ 294.401560][ C0] netif_change_flags+0xfe/0x190 [ 294.401681][ C0] do_setlink.isra.0+0x1cc3/0x2750 [ 294.401794][ C0] rtnl_newlink+0x8d1/0xef0 [ 294.401910][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 294.402033][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 294.402150][ C0] netlink_unicast+0x486/0x750 [ 294.402265][ C0] netlink_sendmsg+0x735/0xc60 [ 294.402377][ C0] ____sys_sendmsg+0x419/0x850 [ 294.402492][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 294.402611][ C0] __sys_sendmsg+0x145/0x1f0 [ 294.402728][ C0] do_syscall_64+0x117/0x590 [ 294.402843][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 294.402985][ C0] INITIAL READ USE at: [ 294.403053][ C0] __lock_acquire+0x378/0xc10 [ 294.403164][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.403276][ C0] _raw_read_lock_bh+0x44/0x80 [ 294.403390][ C0] inet6_fill_ifla6_attrs+0x1aee/0x21e0 [ 294.403531][ C0] inet6_fill_link_af+0x5c/0xe0 [ 294.403652][ C0] rtnl_fill_ifinfo.isra.0+0x1a45/0x2c20 [ 294.403790][ C0] rtnl_getlink+0x9c9/0xeb0 [ 294.403907][ C0] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 294.404024][ C0] netlink_rcv_skb+0x14e/0x3a0 [ 294.404145][ C0] netlink_unicast+0x486/0x750 [ 294.404267][ C0] netlink_sendmsg+0x735/0xc60 [ 294.404381][ C0] ____sys_sendmsg+0x419/0x850 [ 294.404501][ C0] ___sys_sendmsg+0x14e/0x1d0 [ 294.404622][ C0] __sys_sendmsg+0x145/0x1f0 [ 294.404734][ C0] do_syscall_64+0x117/0x590 [ 294.404853][ C0] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 294.404998][ C0] } [ 294.405043][ C0] ... key at: [] __key.37+0x0/0x40 [ 294.405187][ C0] ... acquired at: [ 294.405258][ C0] mark_lock+0x1d7/0xa00 [ 294.405350][ C0] mark_usage+0x42/0x170 [ 294.405441][ C0] __lock_acquire+0x378/0xc10 [ 294.405533][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.405634][ C0] _raw_write_lock+0x33/0x40 [ 294.405729][ C0] addrconf_rs_timer+0xb0/0x770 [ 294.405818][ C0] call_timer_fn+0x163/0x4f0 [ 294.405907][ C0] __run_timers+0x68f/0xab0 [ 294.406004][ C0] run_timer_softirq+0xf0/0x160 [ 294.406093][ C0] handle_softirqs+0x1d8/0x940 [ 294.406189][ C0] __irq_exit_rcu+0x103/0x1c0 [ 294.406283][ C0] irq_exit_rcu+0xe/0x30 [ 294.406376][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 294.406491][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 294.406609][ C0] pv_native_safe_halt+0xf/0x10 [ 294.406699][ C0] default_idle+0x9/0x10 [ 294.406789][ C0] default_idle_call+0x6e/0xb0 [ 294.406880][ C0] cpuidle_idle_call.constprop.0+0x237/0x410 [ 294.406997][ C0] do_idle+0xf5/0x160 [ 294.407070][ C0] cpu_startup_entry+0x53/0x70 [ 294.407165][ C0] rest_init+0x1f7/0x200 [ 294.407261][ C0] start_kernel+0x3ad/0x3b0 [ 294.407352][ C0] x86_64_start_reservations+0x24/0x30 [ 294.407448][ C0] x86_64_start_kernel+0x12b/0x130 [ 294.407537][ C0] common_startup_64+0x13e/0x148 [ 294.407634][ C0] [ 294.407683][ C0] [ 294.407683][ C0] stack backtrace: [ 294.407804][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 294.407807][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 294.407809][ C0] Call Trace: [ 294.407811][ C0] [ 294.407812][ C0] dump_stack_lvl+0x6f/0xa0 [ 294.407817][ C0] print_irq_inversion_bug.part.0.cold+0xe6/0x143 [ 294.407820][ C0] mark_lock_irq+0x989/0x9c0 [ 294.407823][ C0] mark_lock+0x1d7/0xa00 [ 294.407825][ C0] mark_usage+0x42/0x170 [ 294.407826][ C0] __lock_acquire+0x378/0xc10 [ 294.407828][ C0] ? add_chain_cache+0x12d/0x570 [ 294.407830][ C0] lock_acquire.part.0+0xbc/0x260 [ 294.407831][ C0] ? addrconf_rs_timer+0xb0/0x770 [ 294.407833][ C0] ? rcu_is_watching+0x15/0xd0 [ 294.407836][ C0] ? lock_acquire+0x134/0x160 [ 294.407838][ C0] ? ipv6_get_lladdr+0x3f0/0x3f0 [ 294.407840][ C0] _raw_write_lock+0x33/0x40 [ 294.407841][ C0] ? addrconf_rs_timer+0xb0/0x770 [ 294.407843][ C0] addrconf_rs_timer+0xb0/0x770 [ 294.407845][ C0] ? lock_acquire.part.0+0xbc/0x260 [ 294.407847][ C0] ? ipv6_get_lladdr+0x3f0/0x3f0 [ 294.407849][ C0] ? lock_acquire+0x134/0x160 [ 294.407850][ C0] ? ipv6_get_lladdr+0x3f0/0x3f0 [ 294.407852][ C0] call_timer_fn+0x163/0x4f0 [ 294.407854][ C0] ? detach_if_pending+0x1d0/0x1d0 [ 294.407856][ C0] ? debug_object_active_state+0x430/0x430 [ 294.407860][ C0] ? find_held_lock+0x2b/0x80 [ 294.407862][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 294.407864][ C0] ? rcu_is_watching+0x15/0xd0 [ 294.407866][ C0] __run_timers+0x68f/0xab0 [ 294.407868][ C0] ? ipv6_get_lladdr+0x3f0/0x3f0 [ 294.407870][ C0] ? __bpf_trace_itimer_expire+0x10/0x10 [ 294.407872][ C0] ? __lock_acquire+0x508/0xc10 [ 294.407875][ C0] ? __rwlock_init+0x150/0x150 [ 294.407877][ C0] run_timer_softirq+0xf0/0x160 [ 294.407879][ C0] ? __run_timers+0xab0/0xab0 [ 294.407880][ C0] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 294.407883][ C0] ? rcu_is_watching+0x15/0xd0 [ 294.407885][ C0] handle_softirqs+0x1d8/0x940 [ 294.407887][ C0] ? find_held_lock+0x2b/0x80 [ 294.407889][ C0] ? __lock_release.isra.0+0x6b/0x1a0 [ 294.407890][ C0] ? _local_bh_enable+0xd0/0xd0 [ 294.407892][ C0] __irq_exit_rcu+0x103/0x1c0 [ 294.407894][ C0] irq_exit_rcu+0xe/0x30 [ 294.407895][ C0] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 294.407897][ C0] [ 294.407898][ C0] [ 294.407899][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 294.407901][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x10 [ 294.407904][ C0] Code: 48 8b 3d 44 93 00 02 e8 1f 00 00 00 48 2b 05 c8 31 a3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 43 b4 22 00 fb f4 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01 [ 294.407905][ C0] RSP: 0018:ffffffff89607e00 EFLAGS: 00000282 [ 294.407908][ C0] RAX: 000000000177ebf3 RBX: ffffffff8961c740 RCX: ffffffff866d9667 [ 294.407909][ C0] RDX: ffffffff8961c740 RSI: ffffffff89402230 RDI: ffffffff88e6f6c0 [ 294.407910][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 294.407911][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff12c0fc3 [ 294.407912][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770 [ 294.407913][ C0] ? cpuidle_idle_call.constprop.0+0x237/0x410 [ 294.407916][ C0] default_idle+0x9/0x10 [ 294.407917][ C0] default_idle_call+0x6e/0xb0 [ 294.407919][ C0] cpuidle_idle_call.constprop.0+0x237/0x410 [ 294.407921][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 294.407922][ C0] ? mark_tsc_async_resets+0x30/0x30 [ 294.407925][ C0] ? rcu_is_watching+0x15/0xd0 [ 294.407927][ C0] do_idle+0xf5/0x160 [ 294.407929][ C0] cpu_startup_entry+0x53/0x70 [ 294.407930][ C0] rest_init+0x1f7/0x200 [ 294.407932][ C0] start_kernel+0x3ad/0x3b0 [ 294.407934][ C0] x86_64_start_reservations+0x24/0x30 [ 294.407936][ C0] x86_64_start_kernel+0x12b/0x130 [ 294.407938][ C0] common_startup_64+0x13e/0x148 [ 294.407941][ C0] [ 407.993191][ T4527] br0: port 1(veth1) entered disabled state [ 413.037716][ T4532] br0: port 1(veth1) entered forwarding state [ 418.121114][ T4540] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 428.298277][ T4564] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 428.335263][ T4571] br0: port 2(veth2) entered disabled state [ 428.348073][ T4572] br0: port 1(veth1) entered disabled state [ 428.370626][ T4573] veth2: left allmulticast mode [ 428.370778][ T4573] veth2: left promiscuous mode [ 428.370986][ T4573] br0: port 2(veth2) entered disabled state [ 428.371676][ T4573] veth1: left allmulticast mode [ 428.371812][ T4573] veth1: left promiscuous mode [ 428.372017][ T4573] br0: port 1(veth1) entered disabled state