======================================
| [ 89.419073][ C2] common_startup_64 (arch/x86/kernel/head_64.S:421) 
| [   89.419221][    C2]
| [   89.419297][    C2]
| [   89.419297][    C2] stack backtrace:
[   89.419794][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   89.420120][    C2] Call Trace:
[   89.420242][    C2]  <IRQ>
[ 89.420325][ C2] dump_stack_lvl (lib/dump_stack.c:117) 
[ 89.420577][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 89.420761][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 89.420914][ C2] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 89.421098][ C2] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 89.421245][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 89.421396][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 89.421544][ C2] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 89.421693][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:421) 
[ 89.421932][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 89.422080][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 89.422238][ C2] ? save_trace (kernel/locking/lockdep.c:586) 
[ 89.422388][ C2] mark_lock (kernel/locking/lockdep.c:4678) 
[ 89.422593][ C2] mark_usage (kernel/locking/lockdep.c:4567) 
[ 89.422705][ C2] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 89.422854][ C2] ? tcf_mirred_act (net/sched/act_mirred.c:451 (discriminator 2)) act_mirred
[ 89.423047][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 89.423286][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 89.423434][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 89.423583][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 89.423736][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 89.423885][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 89.424125][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 89.424272][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 89.424423][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 89.424570][ C2] ? sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 89.424809][ C2] sch_direct_xmit (./include/linux/netdevice.h:4345 (discriminator 1) net/sched/sch_generic.c:341 (discriminator 1)) 
[ 89.424969][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 89.425122][ C2] ? __pfx_sch_direct_xmit (net/sched/sch_generic.c:318) 
[ 89.425271][ C2] ? __dev_xmit_skb (./include/net/sch_generic.h:195 ./include/net/sch_generic.h:192 net/core/dev.c:3779) 
[ 89.425507][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 89.425656][ C2] ? __dev_xmit_skb (./include/net/sch_generic.h:195 ./include/net/sch_generic.h:192 net/core/dev.c:3779) 
[ 89.425805][ C2] __dev_xmit_skb (net/core/dev.c:3792) 
[ 89.425954][ C2] ? __pfx___dev_xmit_skb (net/core/dev.c:3767) 
[ 89.426192][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:833 net/core/dev.c:4297) 
[ 89.426342][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 89.426493][ C2] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:833 net/core/dev.c:4297) 
[ 89.426643][ C2] __dev_queue_xmit (net/core/dev.c:4338) 
[ 89.426793][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 89.427070][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) 
[ 89.427220][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 52)) 
[ 89.427368][ C2] ? kmem_cache_alloc (mm/slub.c:3858) 
[ 89.427519][ C2] ? __copy_skb_header (./include/net/dst.h:290 net/core/skbuff.c:1501) 
[ 89.427764][ 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)) 
[ 89.427919][ 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
[ 89.428110][ C2] tcf_mirred_act (net/sched/act_mirred.c:453 (discriminator 2)) act_mirred
[ 89.428387][ 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) 
[ 89.428538][ C2] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100) 
[ 89.428687][ C2] ? mall_classify (net/sched/cls_matchall.c:32 (discriminator 3)) cls_matchall
[ 89.428875][ C2] __tcf_classify.constprop.0 (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1770) 
[ 89.429115][ C2] ? update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10612) 
[ 89.429308][ C2] tcf_classify (net/sched/cls_api.c:1815) 
[ 89.429422][ C2] ? __pfx_tcf_classify (net/sched/cls_api.c:1815) 
[ 89.429572][ C2] ? __pfx_update_sd_lb_stats.constprop.0 (kernel/sched/fair.c:10555) 
[ 89.429857][ C2] tc_run (net/core/dev.c:3958) 
[ 89.429972][ C2] ? __pfx_tc_run (net/core/dev.c:3937) 
[ 89.430123][ 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) 
[ 89.430273][ C2] __netif_receive_skb_core.constprop.0 (net/core/dev.c:4030 net/core/dev.c:5464) 
[ 89.430462][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 89.430798][ C2] ? __pfx___netif_receive_skb_core.constprop.0 (net/core/dev.c:5391) 
[ 89.430987][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 89.431136][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 89.431287][ C2] __netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 89.431566][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5597) 
[ 89.431750][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 89.431896][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 89.432135][ C2] ? process_backlog (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 net/core/dev.c:6046) 
[ 89.432287][ C2] process_backlog (./include/linux/rcupdate.h:810 net/core/dev.c:6048) 
[ 89.432439][ C2] __napi_poll.constprop.0 (net/core/dev.c:6701) 
[ 89.432588][ C2] net_rx_action (net/core/dev.c:6770 net/core/dev.c:6886) 
[ 89.432740][ C2] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 89.432982][ C2] __do_softirq (kernel/softirq.c:554) 
[ 89.433131][ C2] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 89.433244][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   89.433392][    C2]  </IRQ>
[   89.433469][    C2]  <TASK>
[ 89.433638][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 89.433824][ 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) 
[ 89.433978][ 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 eb 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 eb 32 00 	verw   0x32ebd3(%rip)        # 0x32ebfb
  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
[   89.434597][    C2] RSP: 0018:ffffc9000015fdf8 EFLAGS: 00000242
[   89.434796][    C2] RAX: 000000000032cca1 RBX: 1ffff9200002bfc1 RCX: ffffffffa0932ea5
[   89.435125][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9e0ac1d4
[   89.435347][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2709c
[   89.435569][    C2] R10: ffff8880361384e3 R11: ffff88803612d9b0 R12: 0000000000000000
[   89.435886][    C2] R13: ffff888001b8c5c0 R14: dffffc0000000000 R15: 0000000000000000
[ 89.436113][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:147) 
[ 89.436261][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:192) 
[ 89.436411][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 89.436654][ C2] cpuidle_idle_call (kernel/sched/idle.c:192) 
[ 89.436801][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 89.436949][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 89.437099][ C2] do_idle (kernel/sched/idle.c:332) 
[ 89.437214][ C2] cpu_startup_entry (kernel/sched/idle.c:429 (discriminator 1)) 
[ 89.437365][ C2] start_secondary (arch/x86/kernel/smpboot.c:201 arch/x86/kernel/smpboot.c:281) 
[ 89.437513][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:231) 


Finger prints:
common_startup_64:dump_stack_lvl:mark_lock_irq:mark_lock