======================================
| [ 29.709563][ C2] common_startup_64 (arch/x86/kernel/head_64.S:421) 
| [   29.709857][    C2]
| [   29.709965][    C2]
| [   29.709965][    C2] stack backtrace:
[   29.710513][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.710955][    C2] Call Trace:
[   29.711079][    C2]  <IRQ>
[ 29.711163][ C2] dump_stack_lvl (lib/dump_stack.c:117) 
[ 29.711323][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 29.711700][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 29.711864][ C2] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 29.712077][ C2] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 29.712237][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 29.712493][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 29.712704][ C2] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 29.712924][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:421) 
[ 29.713140][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 29.713358][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.713577][ C2] ? save_trace (kernel/locking/lockdep.c:586) 
[ 29.713741][ C2] mark_lock (kernel/locking/lockdep.c:4678) 
[ 29.713861][ C2] mark_usage (kernel/locking/lockdep.c:4567) 
[ 29.713981][ C2] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 29.714235][ C2] ? tcf_mirred_act (net/sched/act_mirred.c:451 (discriminator 2)) act_mirred
[ 29.714444][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 29.714602][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 29.714769][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 29.715064][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 29.715281][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 29.715505][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 29.715665][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.715916][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 29.716075][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 29.716232][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 29.716389][ C2] sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 29.716639][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 29.716799][ C2] ? __pfx_sch_direct_xmit (net/sched/sch_generic.c:318) 
[ 29.716957][ C2] ? __dev_xmit_skb (./include/net/sch_generic.h:195 ./include/net/sch_generic.h:192 net/core/dev.c:3779) 
[ 29.717119][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.717372][ C2] ? __dev_xmit_skb (./include/net/sch_generic.h:195 ./include/net/sch_generic.h:192 net/core/dev.c:3779) 
[ 29.717536][ C2] __dev_xmit_skb (net/core/dev.c:3792) 
[ 29.717697][ C2] ? __pfx___dev_xmit_skb (net/core/dev.c:3767) 
[ 29.717857][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:833 net/core/dev.c:4297) 
[ 29.718025][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.718280][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:833 net/core/dev.c:4297) 
[ 29.718445][ C2] __dev_queue_xmit (net/core/dev.c:4338) 
[ 29.718606][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 29.718804][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) 
[ 29.719054][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 52)) 
[ 29.719213][ C2] ? kmem_cache_alloc (mm/slub.c:3858) 
[ 29.719372][ C2] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1501) 
[ 29.719532][ C2] ? __skb_clone (./arch/x86/include/asm/atomic.h:53 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:992 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:436 (discriminator 4) net/core/skbuff.c:1572 (discriminator 4)) 
[ 29.719782][ C2] tcf_mirred_to_dev (net/sched/act_mirred.c:241 net/sched/act_mirred.c:236 net/sched/act_mirred.c:315) act_mirred
[ 29.719982][ C2] tcf_mirred_act (net/sched/act_mirred.c:453 (discriminator 2)) act_mirred
[ 29.720187][ C2] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) 
[ 29.720349][ C2] ? mall_classify (net/sched/cls_matchall.c:32 (discriminator 3)) cls_matchall
[ 29.720640][ C2] __tcf_classify.constprop.0 (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1770) 
[ 29.720800][ C2] ? update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10612) 
[ 29.721001][ C2] tcf_classify (net/sched/cls_api.c:1815) 
[ 29.721123][ C2] ? __pfx_tcf_classify (net/sched/cls_api.c:1815) 
[ 29.721373][ C2] ? __pfx_update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10555) 
[ 29.721569][ C2] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) 
[ 29.721726][ C2] tc_run (net/core/dev.c:3958) 
[ 29.721847][ C2] ? __pfx_tc_run (net/core/dev.c:3937) 
[ 29.722095][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 29.722252][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:4030 net/core/dev.c:5464) 
[ 29.722451][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 29.722609][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391) 
[ 29.722897][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 29.723069][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 29.723233][ C2] __netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 29.723440][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597) 
[ 29.723735][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 29.723892][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.724062][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 29.724229][ C2] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048) 
[ 29.724574][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 29.724733][ C2] ? rebalance_domains (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 kernel/sched/fair.c:11753) 
[ 29.724894][ C2] __napi_poll.constprop.0 (net/core/dev.c:6701) 
[ 29.725054][ C2] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886) 
[ 29.725308][ C2] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 29.725465][ C2] ? tmigr_cpu_activate (kernel/time/timer_migration.c:683 kernel/time/timer_migration.c:705) 
[ 29.725623][ C2] ? __pfx_rebalance_domains (kernel/sched/fair.c:11684) 
[ 29.725781][ C2] __do_softirq (kernel/softirq.c:554) 
[ 29.726031][ C2] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 29.726149][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   29.726309][    C2]  </IRQ>
[   29.726390][    C2]  <TASK>
[ 29.726470][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 29.726759][ C2] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:72 arch/x86/kernel/process.c:743) 
[ 29.726923][ C2] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 fb 32 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 72 ff ff ff       	jmp    0xffffffffffffff7d
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d d3 fb 32 00 	verw   0x32fbd3(%rip)        # 0x32fbfb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   29.727598][    C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242
[   29.727805][    C2] RAX: 0000000000095957 RBX: 1ffff9200002bfc1 RCX: ffffffffb8d31ea5
[   29.728045][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb64ac1d4
[   29.728375][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c
[   29.728612][    C2] R10: ffff8880361384e3 R11: ffff88803612d9b0 R12: 0000000000000000
[   29.728847][    C2] R13: ffff888001b8c5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 29.729191][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:147) 
[ 29.729362][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:192) 
[ 29.729521][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 29.729678][ C2] cpuidle_idle_call (kernel/sched/idle.c:192) 
[ 29.729927][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 29.730087][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 29.730248][ C2] do_idle (kernel/sched/idle.c:332) 
[ 29.730371][ C2] cpu_startup_entry (kernel/sched/idle.c:429 (discriminator 1)) 
[ 29.730529][ C2] start_secondary (arch/x86/kernel/smpboot.c:201 arch/x86/kernel/smpboot.c:281) 
[ 29.730779][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:231) 


Finger prints:
common_startup_64:dump_stack_lvl:mark_lock_irq:mark_lock