======================================
| [ 32.159486][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   32.159690][    C0]
| [   32.159771][    C0]
| [   32.159771][    C0] stack backtrace:
[   32.160214][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.160662][    C0] Call Trace:
[   32.160788][    C0]  <IRQ>
[ 32.160871][ C0] dump_stack_lvl (lib/dump_stack.c:117) 
[ 32.161036][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 32.161326][ C0] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.161489][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 32.161690][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 32.161964][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 32.162127][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.162290][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 32.162448][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 32.162611][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.162774][ C0] ? save_trace (kernel/locking/lockdep.c:586) 
[ 32.162936][ C0] mark_lock (kernel/locking/lockdep.c:4678) 
[ 32.163058][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.163218][ C0] mark_usage (kernel/locking/lockdep.c:4567) 
[ 32.163348][ C0] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 32.163511][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 32.163671][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.163831][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 32.163993][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.164244][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 32.164404][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 32.164562][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.164722][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.165004][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.165162][ C0] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 32.165323][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.165485][ C0] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.165646][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 32.165808][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.165967][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.166129][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.166294][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.166455][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.166615][ C0] call_timer_fn (kernel/time/timer.c:1793) 
[ 32.166780][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.166941][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.167103][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 32.167262][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 32.167387][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 32.167548][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.167803][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 32.167970][ 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) 
[ 32.168132][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.168296][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.168546][ C0] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 32.168708][ C0] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 32.168869][ C0] __do_softirq (kernel/softirq.c:554) 
[ 32.169035][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 32.169158][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   32.169406][    C0]  </IRQ>
[   32.169490][    C0]  <TASK>
[ 32.169572][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 32.169777][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 32.169984][ C0] Code: 10 e8 41 ea 91 fd 48 89 ef e8 79 5a 92 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 e5 61 26 78 <74> 0e 5b 5d c3 cc cc cc cc e8 6f 54 b5 fd eb dc 0f 1f 44 00 00 5b
All code
========
   0:	10 e8                	adc    %ch,%al
   2:	41 ea                	rex.B (bad)
   4:	91                   	xchg   %eax,%ecx
   5:	fd                   	std
   6:	48 89 ef             	mov    %rbp,%rdi
   9:	e8 79 5a 92 fd       	call   0xfffffffffd925a87
   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 e5 61 26 78 	decl   %gs:0x782661e5(%rip)        # 0x7826620f
  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 6f 54 b5 fd       	call   0xfffffffffdb554a7
  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 6f 54 b5 fd       	call   0xfffffffffdb5547d
   e:	eb dc                	jmp    0xffffffffffffffec
  10:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  15:	5b                   	pop    %rbx
[   32.170645][    C0] RSP: 0018:ffffc90000c5f6b0 EFLAGS: 00000282
[   32.170961][    C0] RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff132dc01
[   32.171205][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff87dd67f1
[   32.171444][    C0] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff132e482
[   32.171688][    C0] R10: ffffffff89972417 R11: 0000000000001000 R12: ffff888001041080
[   32.171928][    C0] R13: ffffea0000170e00 R14: ffff8880010433c0 R15: ffff888005c39000
[ 32.172171][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 32.172372][ C0] get_partial_node.part.0 (mm/slub.c:2623) 
[ 32.172531][ C0] ___slab_alloc (mm/slub.c:2583 mm/slub.c:2701 mm/slub.c:3505) 
[ 32.172687][ C0] ? fs_reclaim_acquire (mm/page_alloc.c:3715 mm/page_alloc.c:3706) 
[ 32.172848][ C0] ? p9_fcall_init (net/9p/client.c:232) 
[ 32.173008][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 32.173169][ C0] ? p9_fcall_init (net/9p/client.c:232) 
[ 32.173327][ C0] ? __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) 
[ 32.173483][ C0] __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) 
[ 32.173607][ C0] p9_fcall_init (net/9p/client.c:232) 
[ 32.173858][ C0] p9_tag_alloc (net/9p/client.c:295) 
[ 32.174019][ C0] ? __pfx_p9_tag_alloc (net/9p/client.c:277) 
[ 32.174178][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.174340][ C0] ? stack_depot_save_flags (lib/stackdepot.c:609) 
[ 32.174590][ 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) 
[ 32.174752][ C0] p9_client_prepare_req (net/9p/client.c:641) 
[ 32.174918][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 32.175077][ C0] ? __kasan_kmalloc (mm/kasan/common.c:391) 
[ 32.175416][ C0] ? __pfx_p9_client_prepare_req (net/9p/client.c:625) 
[ 32.175616][ C0] ? vfs_fstat (./include/linux/file.h:47 fs/stat.c:199) 
[ 32.175741][ C0] p9_client_rpc (net/9p/client.c:688 (discriminator 4)) 
[ 32.175901][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 32.176152][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 32.176313][ C0] ? __pfx_p9_client_rpc (net/9p/client.c:672) 
[ 32.176473][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.176636][ C0] ? __create_object (mm/kmemleak.c:756) 
[ 32.176798][ C0] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 52)) 
[ 32.177075][ C0] p9_client_getattr_dotl (net/9p/client.c:1732) 
[ 32.177235][ C0] v9fs_vfs_getattr_dotl (fs/9p/vfs_inode_dotl.c:396) 
[ 32.177395][ C0] ovl_getattr (fs/overlayfs/overlayfs.h:416 fs/overlayfs/inode.c:174) 
[ 32.177557][ C0] ? __pfx_ovl_getattr (fs/overlayfs/inode.c:159) 
[ 32.177718][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 32.177878][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 32.178037][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 32.178199][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 32.178360][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 32.178519][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 32.178677][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.178836][ C0] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 32.178997][ C0] ? vfs_getattr_nosec (fs/stat.c:112) 
[ 32.179159][ C0] vfs_fstat (./include/linux/file.h:47 fs/stat.c:199) 
[ 32.179279][ C0] __do_sys_newfstatat (fs/stat.c:469) 
[ 32.179437][ C0] ? __pfx___do_sys_newfstatat (fs/stat.c:464) 
[ 32.179601][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 32.179887][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.180047][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   32.180242][    C0] RIP: 0033:0x7f1d26e30eae
[ 32.180405][ C0] 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
[   32.181054][    C0] RSP: 002b:00007ffcd04919b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000106
[   32.181383][    C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1d26e30eae
[   32.181621][    C0] RDX: 00007ffcd0491a50 RSI: 00007f1d26e34cfb RDI: 0000000000000005
[   32.181856][    C0] RBP: 00007ffcd0491b10 R08: 00007f1d26e02920 R09: 00007f1d26e40220
[   32.182185][    C0] R10: 0000000000001000 R11: 0000000000000206 R12: 00007f1d26e40220


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage