[ 86.228793][ T1538] Mirror/redirect action on [ 86.238315][ T1534] tc (1534) used greatest stack depth: 23784 bytes left [ 86.261869][ C1] net_ratelimit: 9 callbacks suppressed [ 86.261873][ C1] tc mirred to Houston: device veth2 is down [ 86.408190][ C1] tc mirred to Houston: device veth2 is down [ 86.446010][ C1] tc mirred to Houston: device veth3 is down [ 86.479937][ C1] tc mirred to Houston: device veth2 is down [ 94.082859][ C2] [ 94.082958][ C2] ================================ [ 94.083060][ C2] WARNING: inconsistent lock state [ 94.083151][ C2] 7.1.0-rc5-virtme #1 Not tainted [ 94.083245][ C2] -------------------------------- [ 94.083344][ C2] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 94.083455][ C2] swapper/2/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 94.083566][ C2] ffffffffc08657b8 (mirred_list_lock){+.?.}-{3:3}, at: tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 94.083801][ C2] {SOFTIRQ-ON-W} state was registered at: [ 94.083903][ C2] __lock_acquire+0x378/0xc10 [ 94.084004][ C2] lock_acquire.part.0+0xbc/0x260 [ 94.084096][ C2] _raw_spin_lock+0x33/0x40 [ 94.084188][ C2] tcf_mirred_init+0x844/0xd70 [act_mirred] [ 94.084305][ C2] tcf_action_init_1+0x428/0x6b0 [ 94.084399][ C2] tcf_action_init+0x3cf/0x890 [ 94.084492][ C2] tcf_exts_validate_ex+0x411/0x670 [ 94.084586][ C2] mall_change+0x3cd/0xe9b [cls_matchall] [ 94.084701][ C2] tc_new_tfilter+0x875/0x21e0 [ 94.084799][ C2] rtnetlink_rcv_msg+0x6fd/0xbd0 [ 94.084899][ C2] netlink_rcv_skb+0x14e/0x3a0 [ 94.084992][ C2] netlink_unicast+0x486/0x750 [ 94.085086][ C2] netlink_sendmsg+0x735/0xc60 [ 94.085183][ C2] ____sys_sendmsg+0x419/0x850 [ 94.085285][ C2] ___sys_sendmsg+0x14e/0x1d0 [ 94.085378][ C2] __sys_sendmsg+0x145/0x1f0 [ 94.085470][ C2] do_syscall_64+0x117/0x590 [ 94.085566][ C2] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 94.085682][ C2] irq event stamp: 2766976 [ 94.085774][ C2] hardirqs last enabled at (2766976): [] _raw_spin_unlock_irqrestore+0x53/0x80 [ 94.085960][ C2] hardirqs last disabled at (2766975): [] _raw_spin_lock_irqsave+0x50/0x60 [ 94.086145][ C2] softirqs last enabled at (2766696): [] handle_softirqs+0x611/0x940 [ 94.086314][ C2] softirqs last disabled at (2766721): [] __irq_exit_rcu+0x103/0x1c0 [ 94.086474][ C2] [ 94.086474][ C2] other info that might help us debug this: [ 94.086607][ C2] Possible unsafe locking scenario: [ 94.086607][ C2] [ 94.086742][ C2] CPU0 [ 94.086809][ C2] ---- [ 94.086877][ C2] lock(mirred_list_lock); [ 94.086963][ C2] [ 94.087028][ C2] lock(mirred_list_lock); [ 94.087115][ C2] [ 94.087115][ C2] *** DEADLOCK *** [ 94.087115][ C2] [ 94.087242][ C2] 1 lock held by swapper/2/0: [ 94.087332][ C2] #0: ffffffff94d77c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch+0x389/0x1020 [ 94.087489][ C2] [ 94.087489][ C2] stack backtrace: [ 94.087597][ C2] CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 7.1.0-rc5-virtme #1 PREEMPT(full) [ 94.087600][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 94.087602][ C2] Call Trace: [ 94.087604][ C2] [ 94.087606][ C2] dump_stack_lvl+0x6f/0xa0 [ 94.087611][ C2] print_usage_bug.part.0.cold+0xa9/0xb7 [ 94.087614][ C2] ? filter_irq_stacks+0xd0/0xd0 [ 94.087617][ C2] mark_lock_irq+0x4e3/0x9c0 [ 94.087619][ C2] ? sysvec_apic_timer_interrupt+0x9d/0xe0 [ 94.087621][ C2] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 94.087623][ C2] ? save_trace+0x68/0x280 [ 94.087626][ C2] mark_lock+0x1d7/0xa00 [ 94.087628][ C2] mark_usage+0x42/0x170 [ 94.087629][ C2] __lock_acquire+0x378/0xc10 [ 94.087631][ C2] ? rcu_is_watching+0x15/0xd0 [ 94.087633][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 94.087637][ C2] lock_acquire.part.0+0xbc/0x260 [ 94.087639][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 94.087641][ C2] ? rcu_is_watching+0x15/0xd0 [ 94.087643][ C2] ? lock_acquire+0x134/0x160 [ 94.087644][ C2] _raw_spin_lock+0x33/0x40 [ 94.087646][ C2] ? tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 94.087648][ C2] tcf_mirred_release+0x1d/0x2e0 [act_mirred] [ 94.087650][ C2] tcf_action_rcu_free+0x74/0x1a0 [ 94.087651][ C2] ? rcu_do_batch+0x2b4/0x1020 [ 94.087653][ C2] rcu_do_batch+0x2b6/0x1020 [ 94.087655][ C2] ? lock_acquire.part.0+0xbc/0x260 [ 94.087657][ C2] ? trace_rcu_batch_end+0x330/0x330 [ 94.087659][ C2] ? trace_irq_enable.constprop.0+0x9b/0x180 [ 94.087661][ C2] ? do_raw_spin_unlock+0x59/0x250 [ 94.087663][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x9a/0x160 [ 94.087664][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 94.087666][ C2] ? _raw_spin_unlock_irqrestore+0x53/0x80 [ 94.087667][ C2] ? _raw_spin_unlock_irqrestore+0x40/0x80 [ 94.087669][ C2] rcu_core+0x2bf/0x640 [ 94.087671][ C2] handle_softirqs+0x1d8/0x940 [ 94.087672][ C2] ? find_held_lock+0x2b/0x80 [ 94.087675][ C2] ? __lock_release.isra.0+0x6b/0x1a0 [ 94.087677][ C2] ? _local_bh_enable+0xd0/0xd0 [ 94.087679][ C2] __irq_exit_rcu+0x103/0x1c0 [ 94.087680][ C2] irq_exit_rcu+0xe/0x30 [ 94.087682][ C2] sysvec_apic_timer_interrupt+0x9d/0xe0 [ 94.087684][ C2] [ 94.087684][ C2] [ 94.087685][ C2] ? rcu_is_watching+0x15/0xd0 [ 94.087687][ C2] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 94.087690][ C2] RIP: 0010:pv_native_safe_halt+0xf/0x10 [ 94.087693][ C2] Code: 48 8b 3d 44 d3 00 02 e8 1f 00 00 00 48 2b 05 c8 71 a3 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 43 f4 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 [ 94.087696][ C2] RSP: 0018:ffa0000000157de8 EFLAGS: 00000296 [ 94.087699][ C2] RAX: 00000000002a377f RBX: ff11000001bb4640 RCX: ffffffff91ad9667 [ 94.087701][ C2] RDX: ff11000001bb4640 RSI: ffffffff94801bcb RDI: ffffffff9426f6c0 [ 94.087703][ C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 94.087704][ C2] R10: 0000000000000002 R11: 0000000000000001 R12: 1ff400000002afc0 [ 94.087705][ C2] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 [ 94.087708][ C2] ? cpuidle_idle_call.constprop.0+0x237/0x410 [ 94.087713][ C2] ? lockdep_hardirqs_on+0x8c/0x130 [ 94.087715][ C2] default_idle+0x9/0x10 [ 94.087718][ C2] default_idle_call+0x6e/0xb0 [ 94.087721][ C2] cpuidle_idle_call.constprop.0+0x237/0x410 [ 94.087723][ C2] ? arch_cpu_idle_exit+0x40/0x40 [ 94.087726][ C2] ? mark_tsc_async_resets+0x30/0x30 [ 94.087730][ C2] ? rcu_is_watching+0x15/0xd0 [ 94.087733][ C2] do_idle+0xf5/0x160 [ 94.087735][ C2] cpu_startup_entry+0x53/0x70 [ 94.087738][ C2] start_secondary+0x204/0x2b0 [ 94.087741][ C2] ? set_cpu_sibling_map+0x1fb0/0x1fb0 [ 94.087744][ C2] common_startup_64+0x13e/0x148 [ 94.087751][ C2]