======================================
| [ 43.397173][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   43.397356][    C3]
| [   43.397430][    C3]
| [   43.397430][    C3] stack backtrace:
[   43.397934][    C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   43.398362][    C3] Call Trace:
[   43.398476][    C3]  <IRQ>
[ 43.398560][ C3] dump_stack_lvl (lib/dump_stack.c:117) 
[ 43.398719][ C3] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 43.399019][ C3] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 43.399217][ C3] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 43.399366][ C3] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 43.399515][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 43.399784][ C3] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 43.399939][ C3] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 43.400093][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 43.400246][ C3] ? add_chain_cache (kernel/locking/lockdep.c:3730) 
[ 43.400489][ C3] ? save_trace (kernel/locking/lockdep.c:586) 
[ 43.400643][ C3] mark_lock (kernel/locking/lockdep.c:4678) 
[ 43.400754][ C3] mark_usage (kernel/locking/lockdep.c:4567) 
[ 43.400878][ C3] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 43.401137][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 43.401291][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 43.401553][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 43.401707][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 43.401933][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 43.402175][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 43.402330][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 43.402645][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 43.402799][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 43.403022][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 43.403175][ C3] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 43.403486][ C3] br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 43.403713][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 43.403970][ C3] call_timer_fn (kernel/time/timer.c:1793) 
[ 43.404119][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 43.404361][ C3] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 43.404509][ C3] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 43.404656][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 43.404770][ C3] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 43.405017][ C3] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 43.405275][ C3] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 43.405421][ C3] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 43.405570][ 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) 
[ 43.405724][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 43.405872][ C3] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 43.406020][ C3] ? timer_expire_remote (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 43.406168][ C3] timer_expire_remote (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 43.406406][ C3] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:67 ./arch/x86/include/asm/irqflags.h:127 kernel/time/timer_migration.c:925) 
[ 43.406554][ C3] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:869) 
[ 43.406740][ C3] tmigr_handle_remote_up (kernel/time/timer_migration.c:1003) 
[ 43.406888][ C3] tmigr_handle_remote (kernel/time/timer_migration.c:488 kernel/time/timer_migration.c:1061) 
[ 43.407133][ 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) 
[ 43.407280][ C3] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1026) 
[ 43.407432][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 43.407579][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 43.407852][ C3] __do_softirq (kernel/softirq.c:554) 
[ 43.408000][ C3] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 43.408110][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   43.408261][    C3]  </IRQ>
[   43.408338][    C3]  <TASK>
[ 43.408414][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 43.408685][ C3] RIP: 0010:trace_lock_release (./include/trace/events/lock.h:69) 
[ 43.408845][ C3] Code: 3f 0f 87 28 01 00 00 89 db be 08 00 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 d0 68 12 b7 e8 2f 03 6a 00 48 0f a3 1d f7 f9 23 04 <0f> 82 bb 00 00 00 5b 5d 41 5c c3 cc cc cc cc 48 89 fd 49 89 f4 65
All code
========
   0:	3f                   	(bad)
   1:	0f 87 28 01 00 00    	ja     0x12f
   7:	89 db                	mov    %ebx,%ebx
   9:	be 08 00 00 00       	mov    $0x8,%esi
   e:	48 89 d8             	mov    %rbx,%rax
  11:	48 c1 e8 06          	shr    $0x6,%rax
  15:	48 8d 3c c5 d0 68 12 	lea    -0x48ed9730(,%rax,8),%rdi
  1c:	b7 
  1d:	e8 2f 03 6a 00       	call   0x6a0351
  22:	48 0f a3 1d f7 f9 23 	bt     %rbx,0x423f9f7(%rip)        # 0x423fa21
  29:	04 
  2a:*	0f 82 bb 00 00 00    	jb     0xeb		<-- trapping instruction
  30:	5b                   	pop    %rbx
  31:	5d                   	pop    %rbp
  32:	41 5c                	pop    %r12
  34:	c3                   	ret
  35:	cc                   	int3
  36:	cc                   	int3
  37:	cc                   	int3
  38:	cc                   	int3
  39:	48 89 fd             	mov    %rdi,%rbp
  3c:	49 89 f4             	mov    %rsi,%r12
  3f:	65                   	gs

Code starting with the faulting instruction
===========================================
   0:	0f 82 bb 00 00 00    	jb     0xc1
   6:	5b                   	pop    %rbx
   7:	5d                   	pop    %rbp
   8:	41 5c                	pop    %r12
   a:	c3                   	ret
   b:	cc                   	int3
   c:	cc                   	int3
   d:	cc                   	int3
   e:	cc                   	int3
   f:	48 89 fd             	mov    %rdi,%rbp
  12:	49 89 f4             	mov    %rsi,%r12
  15:	65                   	gs
[   43.409461][    C3] RSP: 0018:ffffc900007bf978 EFLAGS: 00000247
[   43.409656][    C3] RAX: 0000000000000001 RBX: 0000000000000003 RCX: ffffffffb2ee6ed1
[   43.409880][    C3] RDX: fffffbfff6e24d1b RSI: 0000000000000008 RDI: ffffffffb71268d0
[   43.410193][    C3] RBP: ffffffffb67522e0 R08: 0000000000000000 R09: fffffbfff6e24d1a
[   43.410413][    C3] R10: ffffffffb71268d7 R11: ffffc900007bfba8 R12: ffffffffb36563e7
[   43.410632][    C3] R13: 00000000ffffffff R14: 00000000fffffffe R15: ffffc900007bfb70
[ 43.410863][ C3] ? mntput_no_expire (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/namespace.c:1305) 
[ 43.411013][ C3] ? trace_lock_release (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 ./include/trace/events/lock.h:69) 
[ 43.411162][ C3] ? trace_lock_release (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:505 ./include/linux/cpumask.h:1120 ./include/trace/events/lock.h:69) 
[ 43.411488][ C3] ? mntput_no_expire (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/namespace.c:1305) 
[ 43.411638][ C3] lock_release (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5767) 
[ 43.411785][ C3] mntput_no_expire (fs/namespace.c:1289) 
[ 43.411931][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 43.412171][ C3] ? __pfx_mntput_no_expire (fs/namespace.c:1289) 
[ 43.412317][ C3] ? dput.part.0 (./include/linux/rcupdate.h:810 fs/dcache.c:840) 
[ 43.412465][ C3] ? dput.part.0 (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/dcache.c:840) 
[ 43.412614][ C3] terminate_walk (fs/namei.c:686) 
[ 43.412762][ C3] path_lookupat (fs/namei.c:2504) 
[ 43.413001][ C3] filename_lookup (fs/namei.c:2514) 
[ 43.413149][ C3] ? __pfx_filename_lookup (fs/namei.c:2508) 
[ 43.413300][ C3] ? __pfx_kfree_link (fs/libfs.c:1573) 
[ 43.413449][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 43.413689][ C3] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 43.413836][ C3] ? __might_fault (mm/memory.c:6216 mm/memory.c:6209) 
[ 43.413984][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 43.414132][ C3] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 43.414370][ C3] vfs_statx (fs/stat.c:244) 
[ 43.414483][ C3] ? __pfx_vfs_statx (fs/stat.c:234) 
[ 43.414631][ C3] ? getname_flags (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 fs/namei.c:190) 
[ 43.414780][ C3] vfs_fstatat (fs/stat.c:305) 
[ 43.414893][ C3] __do_sys_newfstatat (fs/stat.c:469) 
[ 43.415133][ C3] ? __pfx___do_sys_newfstatat (fs/stat.c:464) 
[ 43.415283][ C3] ? __x64_sys_openat (fs/open.c:1432) 
[ 43.415438][ C3] ? __pfx___x64_sys_openat (fs/open.c:1432) 
[ 43.415583][ C3] ? __pfx_do_faccessat (fs/open.c:465) 
[ 43.415821][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 43.416005][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 43.416152][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   43.416338][    C3] RIP: 0033:0x7f097dae5eae
[ 43.416583][ C3] 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
[   43.417111][    C3] RSP: 002b:00007ffca553fa88 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
[   43.417433][    C3] RAX: ffffffffffffffda RBX: 000000000000000e RCX: 00007f097dae5eae
[   43.417659][    C3] RDX: 00007ffca553fb60 RSI: 00007ffca553fa90 RDI: 00000000ffffff9c
[   43.417975][    C3] RBP: 00007ffca553fc20 R08: 00000000ffffffff R09: 00007ffca553fa90
[   43.418194][    C3] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffca553fa97


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage