======================================
| [ 30.429240][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   30.429433][    C2]
| [   30.429611][    C2]
| [   30.429611][    C2] stack backtrace:
[   30.430049][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   30.430505][    C2] Call Trace:
[   30.430626][    C2]  <IRQ>
[ 30.430708][ C2] dump_stack_lvl (lib/dump_stack.c:117) 
[ 30.430869][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 30.431166][ C2] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 30.431327][ C2] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 30.431523][ C2] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 30.431680][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 30.431943][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 30.432100][ C2] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 30.432257][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 30.432416][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 30.432675][ C2] ? save_trace (kernel/locking/lockdep.c:586) 
[ 30.432833][ C2] mark_lock (kernel/locking/lockdep.c:4678) 
[ 30.432951][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 30.433110][ C2] mark_usage (kernel/locking/lockdep.c:4567) 
[ 30.433229][ C2] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 30.433587][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 30.433747][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 30.433902][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 30.434059][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 30.434315][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 30.434472][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 30.434631][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 30.434794][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 30.434950][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 30.435206][ C2] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 30.435362][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 30.435517][ C2] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 30.435673][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 30.435934][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 30.436092][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 30.436249][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 30.436405][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 30.436663][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 30.436819][ C2] call_timer_fn (kernel/time/timer.c:1793) 
[ 30.436976][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 30.437134][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 30.437389][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 30.437546][ 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) 
[ 30.437705][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 30.437863][ C2] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 30.438019][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 30.438278][ C2] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 30.438435][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 30.438593][ 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) 
[ 30.438750][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 30.439007][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 30.439165][ C2] ? timer_expire_remote (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 30.439333][ C2] timer_expire_remote (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 30.439489][ C2] 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) 
[ 30.439746][ C2] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:869) 
[ 30.439961][ 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) 
[ 30.440117][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 30.440236][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 30.440496][ C2] tmigr_handle_remote_up (kernel/time/timer_migration.c:1003) 
[ 30.440658][ C2] tmigr_handle_remote (kernel/time/timer_migration.c:488 kernel/time/timer_migration.c:1061) 
[ 30.440813][ C2] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1026) 
[ 30.440970][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 30.441128][ C2] __do_softirq (kernel/softirq.c:554) 
[ 30.441387][ C2] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 30.441504][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   30.441664][    C2]  </IRQ>
[   30.441744][    C2]  <TASK>
[ 30.441823][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.442122][ C2] RIP: 0010:kasan_report (mm/kasan/report.c:579) 
[ 30.442283][ C2] Code: cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 41 57 41 56 41 55 41 54 55 <53> 48 83 ec 70 9c 8f 04 24 0f 01 ca 65 4c 8b 3d ef f3 aa 4d 41 8b
All code
========
   0:	cc                   	int3
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	66 0f 1f 84 00 00 00 	nopw   0x0(%rax,%rax,1)
   b:	00 00 
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	66 0f 1f 00          	nopw   (%rax)
  21:	41 57                	push   %r15
  23:	41 56                	push   %r14
  25:	41 55                	push   %r13
  27:	41 54                	push   %r12
  29:	55                   	push   %rbp
  2a:*	53                   	push   %rbx		<-- trapping instruction
  2b:	48 83 ec 70          	sub    $0x70,%rsp
  2f:	9c                   	pushf
  30:	8f 04 24             	pop    (%rsp)
  33:	0f 01 ca             	clac
  36:	65 4c 8b 3d ef f3 aa 	mov    %gs:0x4daaf3ef(%rip),%r15        # 0x4daaf42d
  3d:	4d 
  3e:	41                   	rex.B
  3f:	8b                   	.byte 0x8b

Code starting with the faulting instruction
===========================================
   0:	53                   	push   %rbx
   1:	48 83 ec 70          	sub    $0x70,%rsp
   5:	9c                   	pushf
   6:	8f 04 24             	pop    (%rsp)
   9:	0f 01 ca             	clac
   c:	65 4c 8b 3d ef f3 aa 	mov    %gs:0x4daaf3ef(%rip),%r15        # 0x4daaf403
  13:	4d 
  14:	41                   	rex.B
  15:	8b                   	.byte 0x8b
[   30.442945][    C2] RSP: 0018:ffffc900005ef708 EFLAGS: 00000246
[   30.443145][    C2] RAX: ffff8880062f6000 RBX: ffff8880062f5d58 RCX: ffffffffb4658784
[   30.443383][    C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8880062f5d58
[   30.443719][    C2] RBP: 0000000000000f98 R08: ffff8880062f5064 R09: 000000000000005a
[   30.443954][    C2] R10: 0000000000000008 R11: 0000000000001000 R12: 5a5a5a5a5a5a5a5a
[   30.444187][    C2] R13: 000000000000005a R14: dffffc0000000000 R15: ffff8880062f5068
[ 30.444525][ C2] ? memchr_inv (lib/string.c:856) 
[ 30.444686][ C2] memchr_inv (lib/string.c:856) 
[ 30.444808][ C2] check_bytes_and_report (mm/slub.c:1175) 
[ 30.444968][ C2] check_object (mm/slub.c:853 mm/slub.c:1353) 
[ 30.445226][ C2] free_slab (mm/slub.c:2424 (discriminator 3)) 
[ 30.445345][ C2] qlist_free_all (mm/kasan/quarantine.c:174) 
[ 30.445503][ C2] kasan_quarantine_reduce (./include/linux/srcu.h:285 mm/kasan/quarantine.c:287) 
[ 30.445660][ C2] __kasan_slab_alloc (mm/kasan/common.c:322) 
[ 30.446017][ C2] kmalloc_trace (mm/slub.c:3799 mm/slub.c:3845 mm/slub.c:3992) 
[ 30.446174][ C2] ? __pfx_make_vfsuid (fs/mnt_idmapping.c:73) 
[ 30.446337][ C2] alloc_empty_backing_file (./include/linux/slab.h:628 ./include/linux/slab.h:749 fs/file_table.c:263) 
[ 30.446494][ C2] backing_file_open (fs/backing-file.c:39) 
[ 30.446650][ C2] ovl_open_realfile (fs/overlayfs/file.c:54) 
[ 30.446908][ C2] ovl_open (fs/overlayfs/file.c:169) 
[ 30.447027][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:146) 
[ 30.447184][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 30.447343][ C2] ? do_dentry_open (fs/open.c:912) 
[ 30.447602][ C2] do_dentry_open (fs/open.c:955) 
[ 30.447758][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:146) 
[ 30.447917][ C2] ? may_open (fs/namei.c:3270) 
[ 30.448036][ C2] do_open (fs/namei.c:3643) 
[ 30.448155][ C2] path_openat (fs/namei.c:3799) 
[ 30.448413][ C2] ? __pfx_path_openat (fs/namei.c:3781) 
[ 30.448572][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 30.448730][ C2] do_filp_open (fs/namei.c:3826) 
[ 30.448886][ C2] ? __pfx_do_filp_open (fs/namei.c:3820) 
[ 30.449142][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 30.449301][ C2] ? __pfx_kfree_link (fs/libfs.c:1573) 
[ 30.449457][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 30.449619][ C2] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 30.449739][ C2] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 30.450006][ C2] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 30.450126][ C2] do_sys_openat2 (fs/open.c:1406) 
[ 30.450283][ C2] ? __pfx_do_sys_openat2 (fs/open.c:1392) 
[ 30.450439][ C2] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:960) 
[ 30.450736][ C2] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:94 ./include/linux/rcupdate.h:896 ./include/linux/mmzone.h:2029 arch/x86/mm/physaddr.c:65) 
[ 30.450897][ C2] __x64_sys_openat (fs/open.c:1432) 
[ 30.451057][ C2] ? __pfx___x64_sys_openat (fs/open.c:1432) 
[ 30.451214][ C2] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 30.451471][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   30.451666][    C2] RIP: 0033:0x7f60cff220e8
[ 30.451826][ C2] Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7
All code
========
   0:	f9                   	stc
   1:	41 89 f0             	mov    %esi,%r8d
   4:	41 83 e2 40          	and    $0x40,%r10d
   8:	75 30                	jne    0x3a
   a:	89 f0                	mov    %esi,%eax
   c:	25 00 00 41 00       	and    $0x410000,%eax
  11:	3d 00 00 41 00       	cmp    $0x410000,%eax
  16:	74 22                	je     0x3a
  18:	44 89 c2             	mov    %r8d,%edx
  1b:	4c 89 ce             	mov    %r9,%rsi
  1e:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 30                	ja     0x62
  32:	c3                   	ret
  33:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  3a:	48 8d 44 24 08       	lea    0x8(%rsp),%rax
  3f:	c7                   	.byte 0xc7

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 30                	ja     0x38
   8:	c3                   	ret
   9:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  10:	48 8d 44 24 08       	lea    0x8(%rsp),%rax
  15:	c7                   	.byte 0xc7
[   30.452486][    C2] RSP: 002b:00007ffd62416d18 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[   30.452724][    C2] RAX: ffffffffffffffda RBX: 00007ffd62416f9f RCX: 00007f60cff220e8
[   30.453059][    C2] RDX: 0000000000080000 RSI: 00007ffd62416d90 RDI: 00000000ffffff9c
[   30.453298][    C2] RBP: 00007ffd62416d80 R08: 0000000000080000 R09: 00007ffd62416d90
[   30.453530][    C2] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd62416d97


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage