======================================
| [ 45.413361][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   45.413627][    C2]
| [   45.413698][    C2]
| [   45.413698][    C2] stack backtrace:
[   45.414086][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   45.414489][    C2] Call Trace:
[   45.414598][    C2]  <IRQ>
[ 45.414672][ C2] dump_stack_lvl (lib/dump_stack.c:117) 
[ 45.414831][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 45.415091][ C2] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 45.415271][ C2] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 45.415412][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 45.415740][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 45.415884][ C2] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 45.416028][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 45.416169][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 45.416314][ C2] ? add_chain_cache (kernel/locking/lockdep.c:3730) 
[ 45.416456][ C2] ? save_trace (kernel/locking/lockdep.c:586) 
[ 45.416599][ C2] mark_lock (kernel/locking/lockdep.c:4678) 
[ 45.416706][ C2] mark_usage (kernel/locking/lockdep.c:4567) 
[ 45.416813][ C2] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 45.416962][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 45.417104][ C2] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 45.417350][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 45.417491][ C2] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 45.417796][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 45.417937][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 45.418078][ C2] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 45.418319][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 45.418465][ C2] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 45.418681][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 45.418823][ C2] ? br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 45.419037][ C2] br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:87) bridge
[ 45.419249][ C2] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 45.419496][ C2] call_timer_fn (kernel/time/timer.c:1793) 
[ 45.419646][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 45.419874][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 45.420015][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 45.420157][ C2] ? 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) 
[ 45.420299][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 45.420525][ C2] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 45.420665][ C2] ? __pfx_br_forward_delay_timer_expired (net/bridge/br_stp_timer.c:80) bridge
[ 45.420913][ C2] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 45.421062][ C2] ? 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) 
[ 45.421297][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 45.421438][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 45.421582][ C2] ? run_timer_softirq (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 45.421726][ C2] run_timer_softirq (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2438 kernel/time/timer.c:2448) 
[ 45.421950][ C2] __do_softirq (kernel/softirq.c:554) 
[ 45.422097][ C2] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 45.422204][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   45.422345][    C2]  </IRQ>
[   45.422428][    C2]  <TASK>
[ 45.422500][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 45.422767][ C2] RIP: 0010:kasan_check_range (mm/kasan/generic.c:87 mm/kasan/generic.c:104 mm/kasan/generic.c:129 mm/kasan/generic.c:161 mm/kasan/generic.c:180 mm/kasan/generic.c:189) 
[ 45.422917][ C2] Code: c2 48 85 c0 75 b0 48 89 da 4c 89 d8 4c 29 da e9 49 ff ff ff 48 85 d2 74 b3 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 a5 80 38 00 <74> f2 e9 74 ff ff ff b8 01 00 00 00 c3 cc cc cc cc 48 29 c3 48 89
All code
========
   0:	c2 48 85             	ret    $0x8548
   3:	c0 75 b0 48          	shlb   $0x48,-0x50(%rbp)
   7:	89 da                	mov    %ebx,%edx
   9:	4c 89 d8             	mov    %r11,%rax
   c:	4c 29 da             	sub    %r11,%rdx
   f:	e9 49 ff ff ff       	jmp    0xffffffffffffff5d
  14:	48 85 d2             	test   %rdx,%rdx
  17:	74 b3                	je     0xffffffffffffffcc
  19:	48 01 ea             	add    %rbp,%rdx
  1c:	eb 09                	jmp    0x27
  1e:	48 83 c0 01          	add    $0x1,%rax
  22:	48 39 d0             	cmp    %rdx,%rax
  25:	74 a5                	je     0xffffffffffffffcc
  27:	80 38 00             	cmpb   $0x0,(%rax)
  2a:*	74 f2                	je     0x1e		<-- trapping instruction
  2c:	e9 74 ff ff ff       	jmp    0xffffffffffffffa5
  31:	b8 01 00 00 00       	mov    $0x1,%eax
  36:	c3                   	ret
  37:	cc                   	int3
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	48 29 c3             	sub    %rax,%rbx
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	74 f2                	je     0xfffffffffffffff4
   2:	e9 74 ff ff ff       	jmp    0xffffffffffffff7b
   7:	b8 01 00 00 00       	mov    $0x1,%eax
   c:	c3                   	ret
   d:	cc                   	int3
   e:	cc                   	int3
   f:	cc                   	int3
  10:	cc                   	int3
  11:	48 29 c3             	sub    %rax,%rbx
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[   45.423424][    C2] RSP: 0018:ffffc90000b0f9b8 EFLAGS: 00000246
[   45.423611][    C2] RAX: fffffbfff32e49fa RBX: fffffbfff32e49fb RCX: ffffffff954e6ed1
[   45.423825][    C2] RDX: fffffbfff32e49fb RSI: 0000000000000008 RDI: ffffffff99724fd0
[   45.424041][    C2] RBP: fffffbfff32e49fa R08: 0000000000000000 R09: fffffbfff32e49fa
[   45.424252][    C2] R10: ffffffff99724fd7 R11: ffff8880035a0d08 R12: ffffffff9538b67e
[   45.424471][    C2] R13: ffff8880045f33e0 R14: ffff8880045f33e8 R15: dffffc0000000000
[ 45.424778][ C2] ? dup_mmap (kernel/fork.c:672) 
[ 45.424921][ C2] ? 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) 
[ 45.425065][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1577) 
[ 45.425291][ C2] ? dup_mmap (kernel/fork.c:672) 
[ 45.425432][ C2] 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) 
[ 45.425573][ C2] ? dup_mmap (kernel/fork.c:672) 
[ 45.425712][ C2] lock_release (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5767) 
[ 45.425855][ C2] up_write (kernel/locking/rwsem.c:1632) 
[ 45.426055][ C2] dup_mmap (kernel/fork.c:672) 
[ 45.426164][ C2] ? __pfx_dup_mmap (kernel/fork.c:630) 
[ 45.426311][ C2] ? mm_init.constprop.0.isra.0 (kernel/fork.c:1303) 
[ 45.426488][ C2] ? __raw_spin_lock_init (kernel/locking/spinlock_debug.c:27) 
[ 45.426815][ C2] copy_mm (kernel/fork.c:1688 kernel/fork.c:1736) 
[ 45.426924][ C2] copy_process (kernel/fork.c:2389) 
[ 45.427067][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 45.427210][ C2] ? __pfx_copy_process (kernel/fork.c:2138) 
[ 45.427350][ C2] ? 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) 
[ 45.427500][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 45.427610][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 45.427751][ C2] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) 
[ 45.427894][ C2] kernel_clone (./include/linux/random.h:26 kernel/fork.c:2797) 
[ 45.428034][ C2] ? do_user_addr_fault (./include/linux/rcupdate.h:329 ./include/linux/rcupdate.h:781 ./include/linux/mm.h:700 arch/x86/mm/fault.c:1364) 
[ 45.428180][ C2] ? __pfx_kernel_clone (kernel/fork.c:2756) 
[ 45.428335][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 45.428477][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 45.428715][ C2] __do_sys_clone (kernel/fork.c:2928) 
[ 45.428862][ C2] ? __pfx___do_sys_clone (kernel/fork.c:2928) 
[ 45.429004][ C2] ? __pfx___up_read (kernel/locking/rwsem.c:1339) 
[ 45.429146][ C2] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 45.429326][ C2] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.429468][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   45.429647][    C2] RIP: 0033:0x7f377f771a17
[ 45.429799][ C2] Code: 00 00 00 f3 0f 1e fa 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 39 41 89 c0 85 c0 75 2a 64 48 8b 04 25 10 00
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	64 48 8b 04 25 10 00 	mov    %fs:0x10,%rax
   e:	00 00 
  10:	45 31 c0             	xor    %r8d,%r8d
  13:	31 d2                	xor    %edx,%edx
  15:	31 f6                	xor    %esi,%esi
  17:	bf 11 00 20 01       	mov    $0x1200011,%edi
  1c:	4c 8d 90 d0 02 00 00 	lea    0x2d0(%rax),%r10
  23:	b8 38 00 00 00       	mov    $0x38,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 39                	ja     0x6b
  32:	41 89 c0             	mov    %eax,%r8d
  35:	85 c0                	test   %eax,%eax
  37:	75 2a                	jne    0x63
  39:	64                   	fs
  3a:	48                   	rex.W
  3b:	8b                   	.byte 0x8b
  3c:	04 25                	add    $0x25,%al
  3e:	10 00                	adc    %al,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 39                	ja     0x41
   8:	41 89 c0             	mov    %eax,%r8d
   b:	85 c0                	test   %eax,%eax
   d:	75 2a                	jne    0x39
   f:	64                   	fs
  10:	48                   	rex.W
  11:	8b                   	.byte 0x8b
  12:	04 25                	add    $0x25,%al
  14:	10 00                	adc    %al,(%rax)
[   45.430303][    C2] RSP: 002b:00007ffea060aa28 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[   45.430522][    C2] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f377f771a17
[   45.430820][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[   45.431029][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 006e68617a657375
[   45.431241][    C2] R10: 00007f377f656a10 R11: 0000000000000246 R12: 0000000000000000


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage