======================================
| [ 47.973027][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   47.973325][    C1]
| [   47.973442][    C1]
| [   47.973442][    C1] stack backtrace:
[   47.974301][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   47.974873][    C1] Call Trace:
[   47.975061][    C1]  <IRQ>
[ 47.975184][ C1] dump_stack_lvl (lib/dump_stack.c:117) 
[ 47.975461][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 47.975780][ C1] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 47.976035][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 47.976508][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 47.976770][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 47.977016][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 47.977264][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 47.977662][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 47.977929][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 47.978201][ C1] ? save_trace (kernel/locking/lockdep.c:586) 
[ 47.978463][ C1] mark_lock (kernel/locking/lockdep.c:4678) 
[ 47.978822][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 47.979077][ C1] mark_usage (kernel/locking/lockdep.c:4567) 
[ 47.979282][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 47.979554][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 47.979808][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 47.980219][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 47.980486][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 47.980734][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 47.980995][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 47.981600][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 47.981861][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 47.982116][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 47.982377][ C1] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 47.982778][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 47.983042][ C1] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 47.983296][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 47.983534][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 47.983781][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 47.984188][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 47.984432][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 47.984676][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 47.984909][ C1] call_timer_fn (kernel/time/timer.c:1793) 
[ 47.985174][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 47.985409][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 47.985654][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 47.985890][ C1] ? 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) 
[ 47.986134][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 47.986395][ C1] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 47.986652][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 47.986894][ C1] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 47.987301][ C1] ? 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) 
[ 47.987553][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 47.987782][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 47.988017][ C1] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 47.988258][ C1] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 47.988651][ C1] __do_softirq (kernel/softirq.c:554) 
[ 47.988887][ C1] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 47.989070][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   47.989325][    C1]  </IRQ>
[   47.989452][    C1]  <TASK>
[ 47.989721][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 47.990068][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 47.990376][ C1] 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 4f 7a <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 4f 7a 	decl   %gs:0x7a4fbf05(%rip)        # 0x7a4fbf2f
  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
[   47.991412][    C1] RSP: 0018:ffffc9000078fab8 EFLAGS: 00000286
[   47.991755][    C1] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff11a5955
[   47.992133][    C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff85b40911
[   47.992531][    C1] RBP: ffff88800104f440 R08: 0000000000000001 R09: fffffbfff11a38a9
[   47.992895][    C1] R10: ffffffff88d1c54f R11: 0000000000000008 R12: ffff88800674de08
[   47.993563][    C1] R13: 0000000000000000 R14: ffffc9000078fb08 R15: ffff88800674d408
[ 47.993926][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 47.994241][ C1] qlist_free_all (mm/kasan/quarantine.c:174) 
[ 47.994637][ C1] kasan_quarantine_reduce (./include/linux/srcu.h:285 mm/kasan/quarantine.c:287) 
[ 47.994878][ C1] __kasan_slab_alloc (mm/kasan/common.c:322) 
[ 47.995130][ C1] kmalloc_trace (mm/slub.c:3799 mm/slub.c:3845 mm/slub.c:3992) 
[ 47.995374][ C1] p9_client_getattr_dotl (./include/linux/slab.h:628 net/9p/client.c:1726) 
[ 47.995777][ C1] v9fs_vfs_getattr_dotl (fs/9p/vfs_inode_dotl.c:396) 
[ 47.996026][ C1] ovl_getattr (fs/overlayfs/overlayfs.h:416 fs/overlayfs/inode.c:174) 
[ 47.996260][ C1] ? __pfx_ovl_getattr (fs/overlayfs/inode.c:159) 
[ 47.996520][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 47.996767][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 47.997168][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 47.997425][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 47.997697][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 47.997937][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 47.998171][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 47.998411][ C1] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 47.998671][ C1] ? vfs_getattr_nosec (fs/stat.c:112) 
[ 47.998924][ C1] vfs_fstat (./include/linux/file.h:47 fs/stat.c:199) 
[ 47.999271][ C1] __do_sys_newfstatat (fs/stat.c:469) 
[ 47.999528][ C1] ? __pfx___do_sys_newfstatat (fs/stat.c:464) 
[ 47.999782][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 48.000095][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.000484][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   48.000792][    C1] RIP: 0033:0x7f7738f24eae
[ 48.001040][ C1] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 f7 d8 89 05
All code
========
   0:	48 89 f2             	mov    %rsi,%rdx
   3:	b9 00 01 00 00       	mov    $0x100,%ecx
   8:	48 89 fe             	mov    %rdi,%rsi
   b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  10:	e9 07 00 00 00       	jmp    0x1c
  15:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1c:	f3 0f 1e fa          	endbr64
  20:	41 89 ca             	mov    %ecx,%r10d
  23:	b8 06 01 00 00       	mov    $0x106,%eax
  28:	0f 05                	syscall
  2a:*	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax		<-- trapping instruction
  2f:	77 0b                	ja     0x3c
  31:	31 c0                	xor    %eax,%eax
  33:	c3                   	ret
  34:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  3b:	00 
  3c:	f7 d8                	neg    %eax
  3e:	89                   	.byte 0x89
  3f:	05                   	.byte 0x5

Code starting with the faulting instruction
===========================================
   0:	3d 00 f0 ff ff       	cmp    $0xfffff000,%eax
   5:	77 0b                	ja     0x12
   7:	31 c0                	xor    %eax,%eax
   9:	c3                   	ret
   a:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  11:	00 
  12:	f7 d8                	neg    %eax
  14:	89                   	.byte 0x89
  15:	05                   	.byte 0x5
[   48.002087][    C1] RSP: 002b:00007ffc598e5f58 EFLAGS: 00000206 ORIG_RAX: 0000000000000106
[   48.002497][    C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7738f24eae
[   48.003022][    C1] RDX: 00007ffc598e5ff0 RSI: 00007f7738f28cfb RDI: 0000000000000005
[   48.003371][    C1] RBP: 00007ffc598e60b0 R08: 00007f7738ef7d20 R09: 00007f7738f34220
[   48.003735][    C1] R10: 0000000000001000 R11: 0000000000000206 R12: 00007f7738f34220


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage