[ 759.500490][T11660] Mirror/redirect action on [ 759.533907][ C2] tc mirred to Houston: device veth2 is down [ 759.684241][ C3] tc mirred to Houston: device veth3 is down [ 759.692154][ C1] tc mirred to Houston: device veth3 is down [ 759.704940][ C1] tc mirred to Houston: device veth3 is down [ 767.234297][ C2] [ 767.234379][ C2] ================================ [ 767.234467][ C2] WARNING: inconsistent lock state [ 767.234551][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 767.234632][ C2] -------------------------------- [ 767.234713][ C2] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 767.234812][ C2] ksoftirqd/2/28 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 767.234913][ C2] ffffffffc06047b8 (mirred_list_lock){+.?.}-{3:3}, at: tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 767.235078][ C2] {SOFTIRQ-ON-W} state was registered at: [ 767.235157][ C2] __lock_acquire+0x378/0xc10 [ 767.235241][ C2] lock_acquire.part.0+0xbc/0x260 [ 767.235319][ C2] _raw_spin_lock+0x33/0x40 [ 767.235399][ C2] tcf_mirred_init+0x844/0xd70 [act_mirred] [ 767.235501][ C2] tcf_action_init_1+0x428/0x6b0 [ 767.235581][ C2] tcf_action_init+0x3cf/0x890 [ 767.235657][ C2] tcf_exts_validate_ex+0x411/0x670 [ 767.235740][ C2] mall_change+0x3cd/0xe9b [cls_matchall] [ 767.235842][ C2] tc_new_tfilter+0x875/0x21e0 [ 767.235928][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 767.236011][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 767.236091][ C2] netlink_unicast+0x486/0x750 [ 767.236171][ C2] netlink_sendmsg+0x735/0xc60 [ 767.236251][ C2] ____sys_sendmsg+0x419/0x850 [ 767.236332][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 767.236411][ C2] __sys_sendmsg+0x145/0x1f0 [ 767.236497][ C2] do_syscall_64+0x117/0x590 [ 767.236576][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 767.236674][ C2] irq event stamp: 8650510 [ 767.236755][ C2] hardirqs last enabled at (8650510): [] _raw_spin_unlock_irqrestore+0x53/0x80 [ 767.236915][ C2] hardirqs last disabled at (8650509): [] _raw_spin_lock_irqsave+0x50/0x60 [ 767.237073][ C2] softirqs last enabled at (8650286): [] handle_softirqs+0x611/0x940 [ 767.237213][ C2] softirqs last disabled at (8650289): [] run_ksoftirqd+0x39/0x60 [ 767.237350][ C2] [ 767.237350][ C2] other info that might help us debug this: [ 767.237474][ C2] Possible unsafe locking scenario: [ 767.237474][ C2] [ 767.237593][ C2] CPU0 [ 767.237656][ C2] ---- [ 767.237719][ C2] lock(mirred_list_lock); [ 767.237798][ C2] [ 767.237861][ C2] lock(mirred_list_lock); [ 767.237939][ C2] [ 767.237939][ C2] *** DEADLOCK *** [ 767.237939][ C2] [ 767.238056][ C2] 1 lock held by ksoftirqd/2/28: [ 767.238140][ C2] #0: ffffffffac577c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x389/0x1020 [ 767.238285][ C2] [ 767.238285][ C2] stack backtrace: [ 767.238385][ C2] CPU: 2 UID: 0 PID: 28 Comm: ksoftirqd/2 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 767.238388][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 767.238390][ C2] Call Trace: [ 767.238391][ C2] [ 767.238393][ C2] dump_stack_lvl+0x6f/0xa0 [ 767.238398][ C2] print_usage_bug.part.0.cold+0xa9/0xb7 [ 767.238401][ C2] mark_lock_irq+0x4e3/0x9c0 [ 767.238402][ C2] ? kthread+0x367/0x460 [ 767.238406][ C2] ? save_trace+0x68/0x280 [ 767.238407][ C2] ? __lock_acquire+0x508/0xc10 [ 767.238409][ C2] mark_lock+0x1d7/0xa00 [ 767.238411][ C2] mark_usage+0x42/0x170 [ 767.238412][ C2] __lock_acquire+0x378/0xc10 [ 767.238413][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238416][ C2] lock_acquire.part.0+0xbc/0x260 [ 767.238418][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 767.238420][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238422][ C2] ? lock_acquire+0x134/0x160 [ 767.238423][ C2] _raw_spin_lock+0x33/0x40 [ 767.238425][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 767.238427][ C2] tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 767.238428][ C2] tcf_action_rcu_free+0x74/0x1a0 [ 767.238430][ C2] ? rcu_do_batch+0x2b4/0x1020 [ 767.238432][ C2] rcu_do_batch+0x2b6/0x1020 [ 767.238434][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238436][ C2] ? trace_rcu_batch_end+0x330/0x330 [ 767.238438][ C2] ? finish_task_switch.isra.0+0x216/0x990 [ 767.238440][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238441][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 767.238444][ C2] ? trace_irq_disable.constprop.0+0x9b/0x180 [ 767.238446][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 767.238447][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 767.238450][ C2] rcu_core+0x2bf/0x640 [ 767.238452][ C2] handle_softirqs+0x1d8/0x940 [ 767.238459][ C2] ? _local_bh_enable+0xd0/0xd0 [ 767.238460][ C2] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 767.238463][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238464][ C2] ? rcu_is_watching+0x15/0xd0 [ 767.238466][ C2] run_ksoftirqd+0x39/0x60 [ 767.238467][ C2] smpboot_thread_fn+0x2fb/0x9b0 [ 767.238470][ C2] ? sort_range+0x20/0x20 [ 767.238472][ C2] kthread+0x367/0x460 [ 767.238473][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 767.238475][ C2] ? kthread_affine_node+0x330/0x330 [ 767.238477][ C2] ret_from_fork+0x474/0x6b0 [ 767.238479][ C2] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 767.238481][ C2] ? __switch_to+0x5a3/0xe00 [ 767.238484][ C2] ? kthread_affine_node+0x330/0x330 [ 767.238486][ C2] ret_from_fork_asm+0x11/0x20 [ 767.238489][ C2]