======================================
| [ 29.188111][ C3] common_startup_64 (arch/x86/kernel/head_64.S:421) 
| [   29.188243][    C3]
| [   29.188307][    C3]
| [   29.188307][    C3] stack backtrace:
[   29.188732][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.189017][    C3] Call Trace:
[   29.189194][    C3]  <IRQ>
[ 29.189261][ C3] dump_stack_lvl (lib/dump_stack.c:117) 
[ 29.189393][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 29.189554][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 29.189687][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 29.189921][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 29.190053][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 29.190184][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 29.190317][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 29.190517][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:421) 
[ 29.190647][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 29.190777][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.190908][ C3] ? save_trace (kernel/locking/lockdep.c:586) 
[ 29.191123][ C3] mark_lock (kernel/locking/lockdep.c:4678) 
[ 29.191221][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 29.191350][ C3] mark_usage (kernel/locking/lockdep.c:4567) 
[ 29.191449][ C3] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 29.191579][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 29.191709][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 29.191845][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 29.191975][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 29.192106][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 29.192310][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 29.192440][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 29.192567][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.192696][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 29.192899][ C3] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 29.193028][ C3] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 29.193155][ C3] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 29.193283][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 29.193416][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 29.193617][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 29.193748][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.193876][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 29.194004][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 29.194210][ C3] call_timer_fn (kernel/time/timer.c:1793) 
[ 29.194340][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 29.194471][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 29.194604][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 29.194736][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 29.194840][ C3] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 29.194972][ C3] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 29.195104][ C3] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 29.195237][ C3] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 29.195441][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 29.195572][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 29.195701][ C3] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 29.195835][ C3] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 29.196117][ C3] __do_softirq (kernel/softirq.c:554) 
[ 29.196329][ C3] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 29.196428][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   29.196561][    C3]  </IRQ>
[   29.196629][    C3]  <TASK>
[ 29.196772][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 29.196933][ C3] RIP: 0010:finish_task_switch.isra.0 (./arch/x86/include/asm/jump_label.h:27 kernel/sched/core.c:4969 kernel/sched/core.c:5293) 
[ 29.197100][ C3] Code: 4c 89 ff 48 c7 03 00 00 00 00 ff d2 0f 1f 00 4d 85 e4 75 ba 4c 89 ff e8 41 0b 91 02 e8 9c fc 2d 00 fb 65 48 8b 1d 63 88 3e 55 <66> 90 48 83 7d d0 00 74 55 65 48 8b 1d 52 88 3e 55 48 8d bb 00 05
All code
========
   0:	4c 89 ff             	mov    %r15,%rdi
   3:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
   a:	ff d2                	call   *%rdx
   c:	0f 1f 00             	nopl   (%rax)
   f:	4d 85 e4             	test   %r12,%r12
  12:	75 ba                	jne    0xffffffffffffffce
  14:	4c 89 ff             	mov    %r15,%rdi
  17:	e8 41 0b 91 02       	call   0x2910b5d
  1c:	e8 9c fc 2d 00       	call   0x2dfcbd
  21:	fb                   	sti
  22:	65 48 8b 1d 63 88 3e 	mov    %gs:0x553e8863(%rip),%rbx        # 0x553e888d
  29:	55 
  2a:*	66 90                	xchg   %ax,%ax		<-- trapping instruction
  2c:	48 83 7d d0 00       	cmpq   $0x0,-0x30(%rbp)
  31:	74 55                	je     0x88
  33:	65 48 8b 1d 52 88 3e 	mov    %gs:0x553e8852(%rip),%rbx        # 0x553e888d
  3a:	55 
  3b:	48                   	rex.W
  3c:	8d                   	.byte 0x8d
  3d:	bb                   	.byte 0xbb
  3e:	00                   	.byte 0x0
  3f:	05                   	.byte 0x5

Code starting with the faulting instruction
===========================================
   0:	66 90                	xchg   %ax,%ax
   2:	48 83 7d d0 00       	cmpq   $0x0,-0x30(%rbp)
   7:	74 55                	je     0x5e
   9:	65 48 8b 1d 52 88 3e 	mov    %gs:0x553e8852(%rip),%rbx        # 0x553e8863
  10:	55 
  11:	48                   	rex.W
  12:	8d                   	.byte 0x8d
  13:	bb                   	.byte 0xbb
  14:	00                   	.byte 0x0
  15:	05                   	.byte 0x5
[   29.197678][    C3] RSP: 0018:ffffc9000016fd08 EFLAGS: 00000206
[   29.197855][    C3] RAX: 000000000006b01d RBX: ffff888001b98040 RCX: 1ffffffff5e322d9
[   29.198147][    C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffaac54154
[   29.198366][    C3] RBP: ffffc9000016fd48 R08: 0000000000000001 R09: fffffbfff5e32b5a
[   29.198566][    C3] R10: ffffffffaf195ad7 R11: ffff8880361bde40 R12: ffff8880361bdc98
[   29.198764][    C3] R13: ffff8880058d8040 R14: ffff8880361bdc80 R15: ffff8880361bdc80
[ 29.199043][ C3] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/sched/sched.h:1397 kernel/sched/core.c:5163 kernel/sched/core.c:5281) 
[ 29.199207][ C3] ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/sched/sched.h:1397 kernel/sched/core.c:5163 kernel/sched/core.c:5281) 
[ 29.199445][ C3] ? __switch_to (./arch/x86/include/asm/bitops.h:55 ./include/asm-generic/bitops/instrumented-atomic.h:29 ./include/linux/thread_info.h:89 ./include/linux/sched.h:1926 ./arch/x86/include/asm/fpu/sched.h:68 arch/x86/kernel/process_64.c:674) 
[ 29.199587][ C3] __schedule (kernel/sched/core.c:6617) 
[ 29.199721][ C3] ? __pfx___schedule (kernel/sched/core.c:6617) 
[ 29.199850][ C3] ? trace_rcu_dyntick (./include/trace/events/rcu.h:480 (discriminator 52)) 
[ 29.200129][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 29.200294][ C3] schedule_idle (./arch/x86/include/asm/bitops.h:206 (discriminator 1) ./arch/x86/include/asm/bitops.h:238 (discriminator 1) ./include/linux/thread_info.h:184 (discriminator 1) ./include/linux/sched.h:2106 (discriminator 1) kernel/sched/core.c:6865 (discriminator 1)) 
[ 29.200426][ C3] do_idle (kernel/sched/idle.c:364) 
[ 29.200525][ C3] cpu_startup_entry (kernel/sched/idle.c:429 (discriminator 1)) 
[ 29.200655][ C3] start_secondary (arch/x86/kernel/smpboot.c:201 arch/x86/kernel/smpboot.c:281) 
[ 29.200786][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:231) 


Finger prints:
common_startup_64:dump_stack_lvl:mark_lock_irq:mark_lock