[ 83.976927][ T1723] Mirror/redirect action on [ 84.019635][ C3] tc mirred to Houston: device veth2 is down [ 84.167338][ C3] tc mirred to Houston: device veth3 is down [ 91.703823][ C1] [ 91.703914][ C1] ================================ [ 91.704003][ C1] WARNING: inconsistent lock state [ 91.704097][ C1] 7.1.0-rc5-virtme #1 Not tainted [ 91.704192][ C1] -------------------------------- [ 91.704277][ C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 91.704380][ C1] ksoftirqd/1/23 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 91.704483][ C1] ffffffffc08537b8 (mirred_list_lock){+.?.}-{3:3}, at: tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 91.704656][ C1] {SOFTIRQ-ON-W} state was registered at: [ 91.704742][ C1] __lock_acquire+0x378/0xc10 [ 91.704829][ C1] lock_acquire.part.0+0xbc/0x260 [ 91.704919][ C1] _raw_spin_lock+0x33/0x40 [ 91.705007][ C1] tcf_mirred_init+0x844/0xd70 [act_mirred] [ 91.705116][ C1] tcf_action_init_1+0x428/0x6b0 [ 91.705205][ C1] tcf_action_init+0x3cf/0x890 [ 91.705294][ C1] tcf_exts_validate_ex+0x411/0x670 [ 91.705378][ C1] mall_change+0x3cd/0xe9b [cls_matchall] [ 91.705484][ C1] tc_new_tfilter+0x875/0x21e0 [ 91.705572][ C1] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 91.705664][ C1] netlink_rcv_skb+0x14e/0x3a0 [ 91.705748][ C1] netlink_unicast+0x486/0x750 [ 91.705837][ C1] netlink_sendmsg+0x735/0xc60 [ 91.705922][ C1] ____sys_sendmsg+0x419/0x850 [ 91.706004][ C1] ___sys_sendmsg+0x14e/0x1d0 [ 91.706084][ C1] __sys_sendmsg+0x145/0x1f0 [ 91.706175][ C1] do_syscall_64+0x117/0x590 [ 91.706257][ C1] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 91.706358][ C1] irq event stamp: 2321382 [ 91.706441][ C1] hardirqs last enabled at (2321382): [] _raw_spin_unlock_irqrestore+0x53/0x80 [ 91.706600][ C1] hardirqs last disabled at (2321381): [] _raw_spin_lock_irqsave+0x50/0x60 [ 91.706759][ C1] softirqs last enabled at (2321246): [] handle_softirqs+0x611/0x940 [ 91.706899][ C1] softirqs last disabled at (2321251): [] run_ksoftirqd+0x39/0x60 [ 91.707041][ C1] [ 91.707041][ C1] other info that might help us debug this: [ 91.707177][ C1] Possible unsafe locking scenario: [ 91.707177][ C1] [ 91.707337][ C1] CPU0 [ 91.707397][ C1] ---- [ 91.707456][ C1] lock(mirred_list_lock); [ 91.707536][ C1] [ 91.707635][ C1] lock(mirred_list_lock); [ 91.707736][ C1] [ 91.707736][ C1] *** DEADLOCK *** [ 91.707736][ C1] [ 91.707859][ C1] 1 lock held by ksoftirqd/1/23: [ 91.707945][ C1] #0: ffffffffbbd77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x389/0x1020 [ 91.708145][ C1] [ 91.708145][ C1] stack backtrace: [ 91.708251][ C1] CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 91.708253][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 91.708255][ C1] Call Trace: [ 91.708257][ C1] [ 91.708258][ C1] dump_stack_lvl+0x6f/0xa0 [ 91.708263][ C1] print_usage_bug.part.0.cold+0xa9/0xb7 [ 91.708266][ C1] mark_lock_irq+0x4e3/0x9c0 [ 91.708268][ C1] ? kthread+0x367/0x460 [ 91.708271][ C1] ? save_trace+0x68/0x280 [ 91.708272][ C1] ? __lock_acquire+0x508/0xc10 [ 91.708274][ C1] mark_lock+0x1d7/0xa00 [ 91.708276][ C1] mark_usage+0x42/0x170 [ 91.708277][ C1] __lock_acquire+0x378/0xc10 [ 91.708279][ C1] ? rcu_is_watching+0x15/0xd0 [ 91.708282][ C1] lock_acquire.part.0+0xbc/0x260 [ 91.708283][ C1] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 91.708285][ C1] ? rcu_is_watching+0x15/0xd0 [ 91.708287][ C1] ? lock_acquire+0x134/0x160 [ 91.708289][ C1] _raw_spin_lock+0x33/0x40 [ 91.708291][ C1] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 91.708292][ C1] tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 91.708294][ C1] tcf_action_rcu_free+0x74/0x1a0 [ 91.708296][ C1] ? rcu_do_batch+0x2b4/0x1020 [ 91.708297][ C1] rcu_do_batch+0x2b6/0x1020 [ 91.708300][ C1] ? rcu_is_watching+0x15/0xd0 [ 91.708301][ C1] ? trace_rcu_batch_end+0x330/0x330 [ 91.708303][ C1] ? finish_task_switch.isra.0+0x216/0x990 [ 91.708306][ C1] ? rcu_is_watching+0x15/0xd0 [ 91.708307][ C1] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 91.708310][ C1] ? trace_irq_disable.constprop.0+0x9b/0x180 [ 91.708312][ C1] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 91.708313][ C1] ? lockdep_hardirqs_on+0x8c/0x130 [ 91.708316][ C1] rcu_core+0x2bf/0x640 [ 91.708317][ C1] handle_softirqs+0x1d8/0x940 [ 91.708319][ C1] ? find_held_lock+0x2b/0x80 [ 91.708322][ C1] ? _local_bh_enable+0xd0/0xd0 [ 91.708324][ C1] ? rcu_is_watching+0x15/0xd0 [ 91.708325][ C1] run_ksoftirqd+0x39/0x60 [ 91.708327][ C1] smpboot_thread_fn+0x2fb/0x9b0 [ 91.708330][ C1] ? sort_range+0x20/0x20 [ 91.708332][ C1] kthread+0x367/0x460 [ 91.708333][ C1] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 91.708335][ C1] ? kthread_affine_node+0x330/0x330 [ 91.708336][ C1] ret_from_fork+0x474/0x6b0 [ 91.708339][ C1] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 91.708341][ C1] ? __switch_to+0x5a3/0xe00 [ 91.708344][ C1] ? kthread_affine_node+0x330/0x330 [ 91.708346][ C1] ret_from_fork_asm+0x11/0x20 [ 91.708349][ C1]