[ 56.653398][ T1116] Mirror/redirect action on [ 56.683692][ C1] tc mirred to Houston: device veth2 is down [ 56.817568][ C1] tc mirred to Houston: device veth2 is down [ 56.825545][ C1] tc mirred to Houston: device veth2 is down [ 56.879595][ C1] tc mirred to Houston: device veth3 is down [ 56.912555][ C1] tc mirred to Houston: device veth2 is down [ 64.417126][ C2] [ 64.417206][ C2] ================================ [ 64.417296][ C2] WARNING: inconsistent lock state [ 64.417381][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 64.417464][ C2] -------------------------------- [ 64.417544][ C2] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 64.417652][ C2] ksoftirqd/2/28 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 64.417752][ C2] ffffffffc08617b8 (mirred_list_lock){+.?.}-{3:3}, at: tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 64.417916][ C2] {SOFTIRQ-ON-W} state was registered at: [ 64.417995][ C2] __lock_acquire+0x378/0xc10 [ 64.418082][ C2] lock_acquire.part.0+0xbc/0x260 [ 64.418161][ C2] _raw_spin_lock+0x33/0x40 [ 64.418242][ C2] tcf_mirred_init+0x844/0xd70 [act_mirred] [ 64.418339][ C2] tcf_action_init_1+0x428/0x6b0 [ 64.418421][ C2] tcf_action_init+0x3cf/0x890 [ 64.418499][ C2] tcf_exts_validate_ex+0x411/0x670 [ 64.418585][ C2] mall_change+0x3cd/0xe9b [cls_matchall] [ 64.418686][ C2] tc_new_tfilter+0x875/0x21e0 [ 64.418765][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 64.418845][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 64.418924][ C2] netlink_unicast+0x486/0x750 [ 64.419004][ C2] netlink_sendmsg+0x735/0xc60 [ 64.419083][ C2] ____sys_sendmsg+0x419/0x850 [ 64.419164][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 64.419246][ C2] __sys_sendmsg+0x145/0x1f0 [ 64.419327][ C2] do_syscall_64+0x117/0x590 [ 64.419407][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 64.419510][ C2] irq event stamp: 1502692 [ 64.419594][ C2] hardirqs last enabled at (1502692): [] _raw_spin_unlock_irqrestore+0x53/0x80 [ 64.419756][ C2] hardirqs last disabled at (1502691): [] _raw_spin_lock_irqsave+0x50/0x60 [ 64.419960][ C2] softirqs last enabled at (1502192): [] handle_softirqs+0x611/0x940 [ 64.420098][ C2] softirqs last disabled at (1502195): [] run_ksoftirqd+0x39/0x60 [ 64.420234][ C2] [ 64.420234][ C2] other info that might help us debug this: [ 64.420350][ C2] Possible unsafe locking scenario: [ 64.420350][ C2] [ 64.420470][ C2] CPU0 [ 64.420530][ C2] ---- [ 64.420592][ C2] lock(mirred_list_lock); [ 64.420674][ C2] [ 64.420735][ C2] lock(mirred_list_lock); [ 64.420815][ C2] [ 64.420815][ C2] *** DEADLOCK *** [ 64.420815][ C2] [ 64.420971][ C2] 1 lock held by ksoftirqd/2/28: [ 64.421053][ C2] #0: ffffffffae777c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x389/0x1020 [ 64.421197][ C2] [ 64.421197][ C2] stack backtrace: [ 64.421297][ C2] CPU: 2 UID: 0 PID: 28 Comm: ksoftirqd/2 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 64.421300][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 64.421302][ C2] Call Trace: [ 64.421304][ C2] [ 64.421305][ C2] dump_stack_lvl+0x6f/0xa0 [ 64.421311][ C2] print_usage_bug.part.0.cold+0xa9/0xb7 [ 64.421314][ C2] mark_lock_irq+0x4e3/0x9c0 [ 64.421316][ C2] ? kthread+0x367/0x460 [ 64.421319][ C2] ? save_trace+0x68/0x280 [ 64.421320][ C2] ? __lock_acquire+0x508/0xc10 [ 64.421322][ C2] mark_lock+0x1d7/0xa00 [ 64.421324][ C2] mark_usage+0x42/0x170 [ 64.421325][ C2] __lock_acquire+0x378/0xc10 [ 64.421327][ C2] ? rcu_is_watching+0x15/0xd0 [ 64.421330][ C2] lock_acquire.part.0+0xbc/0x260 [ 64.421331][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 64.421333][ C2] ? rcu_is_watching+0x15/0xd0 [ 64.421335][ C2] ? lock_acquire+0x134/0x160 [ 64.421337][ C2] _raw_spin_lock+0x33/0x40 [ 64.421339][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 64.421340][ C2] tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 64.421342][ C2] tcf_action_rcu_free+0x74/0x1a0 [ 64.421344][ C2] ? rcu_do_batch+0x2b4/0x1020 [ 64.421345][ C2] rcu_do_batch+0x2b6/0x1020 [ 64.421348][ C2] ? rcu_start_this_gp+0x270/0x490 [ 64.421350][ C2] ? trace_rcu_batch_end+0x330/0x330 [ 64.421352][ C2] ? rcu_is_watching+0x15/0xd0 [ 64.421354][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 64.421357][ C2] ? trace_irq_disable.constprop.0+0x9b/0x180 [ 64.421358][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 64.421360][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 64.421362][ C2] rcu_core+0x2bf/0x640 [ 64.421364][ C2] handle_softirqs+0x1d8/0x940 [ 64.421366][ C2] ? _local_bh_enable+0xd0/0xd0 [ 64.421368][ C2] ? perf_trace_sched_switch+0x7d0/0x7d0 [ 64.421371][ C2] ? rcu_is_watching+0x15/0xd0 [ 64.421372][ C2] ? rcu_is_watching+0x15/0xd0 [ 64.421374][ C2] run_ksoftirqd+0x39/0x60 [ 64.421375][ C2] smpboot_thread_fn+0x2fb/0x9b0 [ 64.421378][ C2] ? sort_range+0x20/0x20 [ 64.421380][ C2] kthread+0x367/0x460 [ 64.421382][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 64.421383][ C2] ? kthread_affine_node+0x330/0x330 [ 64.421385][ C2] ret_from_fork+0x474/0x6b0 [ 64.421388][ C2] ? arch_exit_to_user_mode_prepare.isra.0+0x120/0x120 [ 64.421390][ C2] ? __switch_to+0x5a3/0xe00 [ 64.421393][ C2] ? kthread_affine_node+0x330/0x330 [ 64.421394][ C2] ret_from_fork_asm+0x11/0x20 [ 64.421398][ C2]