======================================
| [ 62.808841][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   62.809123][    C0]
| [   62.809197][    C0]
| [   62.809197][    C0] stack backtrace:
[   62.809605][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   62.809936][    C0] Call Trace:
[   62.810050][    C0]  <IRQ>
[ 62.810128][ C0] dump_stack_lvl (lib/dump_stack.c:117) 
[ 62.810281][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 62.810558][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 62.810743][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 62.810891][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 62.811137][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 62.811289][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 62.811437][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 62.811586][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 62.811736][ C0] ? add_chain_cache (kernel/locking/lockdep.c:3730) 
[ 62.812071][ C0] ? save_trace (kernel/locking/lockdep.c:586) 
[ 62.812221][ C0] mark_lock (kernel/locking/lockdep.c:4678) 
[ 62.812333][ C0] mark_usage (kernel/locking/lockdep.c:4567) 
[ 62.812444][ C0] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 62.812594][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 62.812740][ C0] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 62.813002][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 62.813149][ C0] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 62.813466][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 62.813614][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 62.813761][ C0] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 62.813986][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 62.814226][ C0] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 62.814446][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 62.814592][ C0] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 62.814813][ C0] br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 62.815127][ C0] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 62.815386][ C0] call_timer_fn (kernel/time/timer.c:1793) 
[ 62.815558][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 62.815709][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 62.815858][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 62.816005][ C0] ? 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) 
[ 62.816154][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 62.816305][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 62.816452][ C0] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 62.816710][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 62.816860][ C0] ? 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) 
[ 62.817103][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 62.817252][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 62.817400][ C0] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 62.817549][ C0] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 62.817697][ C0] __do_softirq (kernel/softirq.c:554) 
[ 62.817847][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 62.817959][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   62.818113][    C0]  </IRQ>
[   62.818198][    C0]  <TASK>
[ 62.818275][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 62.818553][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 62.818747][ C0] Code: 10 e8 21 49 9b fd 48 89 ef e8 59 b9 9b fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 05 bf cf 53 <74> 0e 5b 5d c3 cc cc cc cc e8 4f b3 be fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	21 49 9b             	and    %ecx,-0x65(%rcx)
   5:	fd                   	std
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 59 b9 9b fd       	call   0xfffffffffd9bb967
   e:	81 e3 00 02 00 00    	and    $0x200,%ebx
  14:	75 1d                	jne    0x33
  16:	9c                   	pushf
  17:	58                   	pop    %rax
  18:	f6 c4 02             	test   $0x2,%ah
  1b:	75 29                	jne    0x46
  1d:	48 85 db             	test   %rbx,%rbx
  20:	74 01                	je     0x23
  22:	fb                   	sti
  23:	65 ff 0d 05 bf cf 53 	decl   %gs:0x53cfbf05(%rip)        # 0x53cfbf2f
  2a:*	74 0e                	je     0x3a		<-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	5d                   	pop    %rbp
  2e:	c3                   	ret
  2f:	cc                   	int3
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	e8 4f b3 be fd       	call   0xfffffffffdbeb387
  38:	eb dc                	jmp    0x16
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	74 0e                	je     0x10
   2:	5b                   	pop    %rbx
   3:	5d                   	pop    %rbp
   4:	c3                   	ret
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	cc                   	int3
   9:	e8 4f b3 be fd       	call   0xfffffffffdbeb35d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[   62.819365][    C0] RSP: 0018:ffffc9000059f6f0 EFLAGS: 00000282
[   62.819558][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff5ea5eb4
[   62.819782][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffac340911
[   62.820096][    C0] RBP: ffff88800104f440 R08: 0000000000000001 R09: fffffbfff5ea38aa
[   62.820319][    C0] R10: ffffffffaf51c557 R11: 0000000000000008 R12: ffff88800104f440
[   62.820639][    C0] R13: ffffea00001f1380 R14: ffff88800104de40 R15: ffff888007c4fe08
[ 62.820870][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 62.821057][ C0] get_partial_node.part.0 (mm/slub.c:2623) 
[ 62.821207][ C0] ___slab_alloc (mm/slub.c:2583 mm/slub.c:2701 mm/slub.c:3505) 
[ 62.821446][ C0] ? kmem_cache_alloc (./include/linux/sched/mm.h:315 mm/slub.c:3746 mm/slub.c:3827 mm/slub.c:3852) 
[ 62.821594][ C0] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 62.821741][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 62.821891][ C0] ? __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 62.822134][ C0] ? kmem_cache_alloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3852) 
[ 62.822282][ C0] kmem_cache_alloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3852) 
[ 62.822431][ C0] __alloc_object (mm/kmemleak.c:466 mm/kmemleak.c:645) 
[ 62.822583][ C0] __create_object (mm/kmemleak.c:750) 
[ 62.822731][ C0] kmem_cache_alloc (./include/linux/kmemleak.h:42 mm/slub.c:3802 mm/slub.c:3845 mm/slub.c:3852) 
[ 62.822881][ C0] vm_area_dup (kernel/fork.c:441 kernel/fork.c:494) 
[ 62.822993][ C0] __split_vma (mm/mmap.c:2339) 
[ 62.823141][ C0] ? 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) 
[ 62.823287][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 62.823582][ C0] ? __pfx___split_vma (mm/mmap.c:2325) 
[ 62.823733][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 62.823880][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5134 (discriminator 9)) 
[ 62.824027][ C0] do_vmi_align_munmap.constprop.0 (mm/mmap.c:2550) 
[ 62.824311][ C0] ? __pfx_do_vmi_align_munmap.constprop.0 (mm/mmap.c:2505) 
[ 62.824493][ C0] ? mtree_range_walk (lib/maple_tree.c:788 lib/maple_tree.c:2792) 
[ 62.824644][ C0] ? mas_walk (lib/maple_tree.c:3678 lib/maple_tree.c:4909) 
[ 62.824759][ C0] ? mas_find (lib/maple_tree.c:6025 lib/maple_tree.c:6064) 
[ 62.824871][ C0] mmap_region (mm/mmap.c:2747) 
[ 62.825121][ C0] ? __pfx_arch_get_unmapped_area_topdown (arch/x86/kernel/sys_x86_64.c:157) 
[ 62.825315][ C0] ? __pfx_mmap_region (mm/mmap.c:2718) 
[ 62.825473][ C0] ? get_unmapped_area (mm/mmap.c:1854) 
[ 62.825623][ C0] do_mmap (mm/mmap.c:1385) 
[ 62.825736][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 62.825884][ C0] ? __fget_files (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/file.c:1037) 
[ 62.826033][ C0] vm_mmap_pgoff (mm/util.c:573) 
[ 62.826182][ C0] ? __pfx_vm_mmap_pgoff (mm/util.c:563) 
[ 62.826424][ C0] ? __fget_files (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/file.c:1037) 
[ 62.826571][ C0] ? __fget_files (fs/file.c:1040) 
[ 62.826718][ C0] ksys_mmap_pgoff (mm/mmap.c:1431) 
[ 62.826867][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 62.827107][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   62.827294][    C0] RIP: 0033:0x7f0b50911287
[ 62.827448][ C0] Code: c3 66 90 48 89 2b 48 c7 43 08 00 04 00 00 5b 5d 41 5c c3 f3 0f 1e fa 41 89 ca 41 f7 c1 ff 0f 00 00 75 10 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 19 c3 c7 05 46 ef 00 00 16 00 00 00 48 c7 c0
All code
========
   0:	c3                   	ret
   1:	66 90                	xchg   %ax,%ax
   3:	48 89 2b             	mov    %rbp,(%rbx)
   6:	48 c7 43 08 00 04 00 	movq   $0x400,0x8(%rbx)
   d:	00 
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	41 5c                	pop    %r12
  12:	c3                   	ret
  13:	f3 0f 1e fa          	endbr64
  17:	41 89 ca             	mov    %ecx,%r10d
  1a:	41 f7 c1 ff 0f 00 00 	test   $0xfff,%r9d
  21:	75 10                	jne    0x33
  23:	b8 09 00 00 00       	mov    $0x9,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 19                	ja     0x4b
  32:	c3                   	ret
  33:	c7 05 46 ef 00 00 16 	movl   $0x16,0xef46(%rip)        # 0xef83
  3a:	00 00 00 
  3d:	48                   	rex.W
  3e:	c7                   	.byte 0xc7
  3f:	c0                   	.byte 0xc0

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 19                	ja     0x21
   8:	c3                   	ret
   9:	c7 05 46 ef 00 00 16 	movl   $0x16,0xef46(%rip)        # 0xef59
  10:	00 00 00 
  13:	48                   	rex.W
  14:	c7                   	.byte 0xc7
  15:	c0                   	.byte 0xc0
[   62.827973][    C0] RSP: 002b:00007fffbefed418 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[   62.828195][    C0] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0b50911287
[   62.828508][    C0] RDX: 0000000000000001 RSI: 0000000000002000 RDI: 00007f0b5088a000
[   62.828727][    C0] RBP: 00007fffbefed780 R08: 0000000000000005 R09: 0000000000006000
[   62.828946][    C0] R10: 0000000000000812 R11: 0000000000000246 R12: 00007fffbefed480


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage