======================================
| [ 31.570411][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   31.570608][    C2]
| [   31.570687][    C2]
| [   31.570687][    C2] stack backtrace:
[   31.571121][    C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   31.571584][    C2] Call Trace:
[   31.571711][    C2]  <IRQ>
[ 31.571794][ C2] dump_stack_lvl (lib/dump_stack.c:117) 
[ 31.571957][ C2] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 31.572157][ C2] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 31.572324][ C2] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 31.572522][ C2] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 31.572683][ C2] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 31.572944][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 31.573105][ C2] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 31.573267][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 31.573426][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.573587][ C2] ? save_trace (kernel/locking/lockdep.c:586) 
[ 31.573746][ C2] mark_lock (kernel/locking/lockdep.c:4678) 
[ 31.573866][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 31.574027][ C2] mark_usage (kernel/locking/lockdep.c:4567) 
[ 31.574150][ C2] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 31.574419][ C2] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 31.574579][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 31.574737][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 31.574895][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 31.575053][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 31.575212][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 31.575375][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 31.575533][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 31.575691][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 31.575850][ C2] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 31.576009][ C2] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 31.576169][ C2] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 31.576329][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 31.576594][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 31.576753][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 31.576914][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 31.577072][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 31.577231][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 31.577391][ C2] call_timer_fn (kernel/time/timer.c:1793) 
[ 31.577548][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 31.577706][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 31.577872][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 31.578138][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 31.578263][ C2] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 31.578422][ C2] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 31.578584][ C2] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 31.578742][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 31.578901][ 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) 
[ 31.579059][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.579216][ C2] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 31.579479][ C2] ? timer_expire_remote (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 31.579641][ C2] timer_expire_remote (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 31.579802][ 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) 
[ 31.579961][ C2] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:869) 
[ 31.580168][ C2] tmigr_handle_remote_up (kernel/time/timer_migration.c:1003) 
[ 31.580327][ C2] tmigr_handle_remote (kernel/time/timer_migration.c:488 kernel/time/timer_migration.c:1061) 
[ 31.580485][ C2] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1026) 
[ 31.580647][ C2] __do_softirq (kernel/softirq.c:554) 
[ 31.580808][ C2] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 31.581035][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   31.581194][    C2]  </IRQ>
[   31.581276][    C2]  <TASK>
[ 31.581356][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 31.581553][ C2] RIP: 0010:kasan_report (mm/kasan/report.c:609) 
[ 31.581719][ C2] Code: 24 28 4c 89 6c 24 30 e8 5d f5 ff ff 48 8d 7c 24 10 e8 73 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 e3 fc ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc
All code
========
   0:	24 28                	and    $0x28,%al
   2:	4c 89 6c 24 30       	mov    %r13,0x30(%rsp)
   7:	e8 5d f5 ff ff       	call   0xfffffffffffff569
   c:	48 8d 7c 24 10       	lea    0x10(%rsp),%rdi
  11:	e8 73 fa ff ff       	call   0xfffffffffffffa89
  16:	0f b6 d3             	movzbl %bl,%edx
  19:	48 89 ee             	mov    %rbp,%rsi
  1c:	48 8d 7c 24 08       	lea    0x8(%rsp),%rdi
  21:	e8 e3 fc ff ff       	call   0xfffffffffffffd09
  26:	ff 34 24             	push   (%rsp)
  29:	9d                   	popf
  2a:*	48 83 c4 70          	add    $0x70,%rsp		<-- trapping instruction
  2e:	44 89 e0             	mov    %r12d,%eax
  31:	5b                   	pop    %rbx
  32:	5d                   	pop    %rbp
  33:	41 5c                	pop    %r12
  35:	41 5d                	pop    %r13
  37:	41 5e                	pop    %r14
  39:	41 5f                	pop    %r15
  3b:	c3                   	ret
  3c:	cc                   	int3
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	48 83 c4 70          	add    $0x70,%rsp
   4:	44 89 e0             	mov    %r12d,%eax
   7:	5b                   	pop    %rbx
   8:	5d                   	pop    %rbp
   9:	41 5c                	pop    %r12
   b:	41 5d                	pop    %r13
   d:	41 5e                	pop    %r14
   f:	41 5f                	pop    %r15
  11:	c3                   	ret
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   31.582281][    C2] RSP: 0018:ffffc900010bf258 EFLAGS: 00000282
[   31.582594][    C2] RAX: 00000000ffffffff RBX: ffff888008dd82c8 RCX: ffffffffab457784
[   31.582838][    C2] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888008dd82c8
[   31.583075][    C2] RBP: 0000000000001000 R08: ffff888008dd8000 R09: 00000000000000bb
[   31.583312][    C2] R10: ffff888008ddd054 R11: ffff88803ffdb700 R12: 0000000000000000
[   31.583551][    C2] R13: 00000000000000bb R14: dffffc0000000000 R15: ffff888005af8040
[ 31.583792][ C2] ? memchr_inv (lib/string.c:856) 
[ 31.583954][ C2] ? __alloc_pages (mm/page_alloc.c:4541) 
[ 31.584114][ C2] memchr_inv (lib/string.c:856) 
[ 31.584234][ C2] check_bytes_and_report (mm/slub.c:1175) 
[ 31.584394][ C2] check_object (mm/slub.c:1303) 
[ 31.584658][ C2] alloc_debug_processing (mm/slub.c:1544 mm/slub.c:1554) 
[ 31.584820][ C2] ___slab_alloc (mm/slub.c:2537 mm/slub.c:3536) 
[ 31.584980][ C2] ? fs_reclaim_acquire (mm/page_alloc.c:3715 mm/page_alloc.c:3706) 
[ 31.585138][ C2] ? p9_fcall_init (net/9p/client.c:232) 
[ 31.585298][ C2] ? p9_fcall_init (net/9p/client.c:232) 
[ 31.585456][ C2] ? __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) 
[ 31.585614][ C2] __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) 
[ 31.585735][ C2] p9_fcall_init (net/9p/client.c:232) 
[ 31.585895][ C2] p9_tag_alloc (net/9p/client.c:295) 
[ 31.586158][ C2] ? __pfx_p9_tag_alloc (net/9p/client.c:277) 
[ 31.586318][ C2] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 31.586440][ C2] p9_client_prepare_req (net/9p/client.c:641) 
[ 31.586599][ C2] ? __pfx_p9_client_prepare_req (net/9p/client.c:625) 
[ 31.586798][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 31.586957][ C2] p9_client_rpc (net/9p/client.c:688 (discriminator 4)) 
[ 31.587121][ 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) 
[ 31.587279][ C2] ? __pfx_p9_client_rpc (net/9p/client.c:672) 
[ 31.587547][ C2] ? v9fs_fid_find (fs/9p/fid.c:114) 
[ 31.587705][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 31.587865][ C2] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 31.588025][ C2] ? __pfx_v9fs_fid_find (fs/9p/fid.c:114) 
[ 31.588186][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 31.588346][ C2] p9_client_readlink (net/9p/client.c:2238) 
[ 31.588505][ C2] v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:822 fs/9p/vfs_inode_dotl.c:806) 
[ 31.588665][ C2] ? __pfx_v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:809) 
[ 31.588968][ C2] ovl_get_link (fs/overlayfs/inode.c:338 fs/overlayfs/inode.c:326) 
[ 31.589089][ C2] pick_link (fs/namei.c:1808) 
[ 31.589214][ C2] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 31.589372][ C2] ? __d_lookup (./include/linux/rcupdate.h:339 ./include/linux/rcupdate.h:814 fs/dcache.c:2328) 
[ 31.589532][ C2] step_into (fs/namei.c:1874) 
[ 31.589757][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.589916][ C2] ? __pfx_step_into (fs/namei.c:1839) 
[ 31.590082][ C2] ? __d_lookup (fs/dcache.c:2331) 
[ 31.590242][ C2] open_last_lookups (fs/namei.c:3589) 
[ 31.590404][ C2] path_openat (fs/namei.c:3796 (discriminator 1)) 
[ 31.590570][ C2] ? __pfx_path_openat (fs/namei.c:3781) 
[ 31.590731][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 31.590891][ C2] do_filp_open (fs/namei.c:3826) 
[ 31.591049][ C2] ? __pfx_do_filp_open (fs/namei.c:3820) 
[ 31.591312][ C2] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 31.591474][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 31.591632][ C2] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 31.591753][ C2] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 31.591910][ C2] ? alloc_fd (fs/file.c:555 (discriminator 10)) 
[ 31.592031][ C2] do_sys_openat2 (fs/open.c:1406) 
[ 31.592192][ C2] ? __pfx_do_sys_openat2 (fs/open.c:1392) 
[ 31.592351][ C2] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:960) 
[ 31.592551][ 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) 
[ 31.592815][ C2] __x64_sys_openat (fs/open.c:1432) 
[ 31.592973][ C2] ? __pfx___x64_sys_openat (fs/open.c:1432) 
[ 31.593133][ C2] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.593290][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   31.593489][    C2] RIP: 0033:0x7faa0c3820e8
[ 31.593653][ 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
[   31.594316][    C2] RSP: 002b:00007ffe37bffd18 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
[   31.594554][    C2] RAX: ffffffffffffffda RBX: 00007ffe37bfff9f RCX: 00007faa0c3820e8
[   31.594795][    C2] RDX: 0000000000080000 RSI: 00007ffe37bffd90 RDI: 00000000ffffff9c
[   31.595028][    C2] RBP: 00007ffe37bffd80 R08: 0000000000080000 R09: 00007ffe37bffd90
[   31.595262][    C2] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffe37bffd97


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage