======================================
| [ 32.092872][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
| [   32.093054][    C0]
| [   32.093128][    C0]
| [   32.093128][    C0] stack backtrace:
[   32.093622][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   32.093946][    C0] Call Trace:
[   32.094061][    C0]  <IRQ>
[ 32.094137][ C0] dump_stack_lvl (lib/dump_stack.c:117) 
[ 32.094288][ C0] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 32.094476][ C0] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
[ 32.094626][ C0] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) 
[ 32.094808][ C0] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) 
[ 32.094954][ C0] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) 
[ 32.095099][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
[ 32.095341][ C0] mark_lock_irq (kernel/locking/lockdep.c:4244) 
[ 32.095490][ C0] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) 
[ 32.095637][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.095787][ C0] ? save_trace (kernel/locking/lockdep.c:586) 
[ 32.096116][ C0] mark_lock (kernel/locking/lockdep.c:4678) 
[ 32.096230][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 32.096377][ C0] mark_usage (kernel/locking/lockdep.c:4567) 
[ 32.096493][ C0] __lock_acquire (kernel/locking/lockdep.c:5091) 
[ 32.096643][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 32.096889][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.097040][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 32.097188][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.097334][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 32.097572][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 32.097721][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.097866][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.098012][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.098158][ C0] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) 
[ 32.098397][ C0] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.098542][ C0] addrconf_rs_timer (net/ipv6/addrconf.c:4023) 
[ 32.098691][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 32.098838][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.099077][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.099222][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.099368][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.099514][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.099751][ C0] call_timer_fn (kernel/time/timer.c:1793) 
[ 32.099907][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.100054][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) 
[ 32.100200][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) 
[ 32.100447][ 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) 
[ 32.100594][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 32.100741][ C0] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) 
[ 32.100889][ C0] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) 
[ 32.101035][ C0] ? __pfx___run_timers (kernel/time/timer.c:2389) 
[ 32.101181][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 32.101328][ 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) 
[ 32.101475][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.101621][ C0] ? lock_acquire (kernel/locking/lockdep.c:5727) 
[ 32.101770][ C0] ? timer_expire_remote (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 32.101924][ C0] timer_expire_remote (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2181) 
[ 32.102070][ C0] 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) 
[ 32.102217][ C0] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:869) 
[ 32.102499][ 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) 
[ 32.102644][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) 
[ 32.102760][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 32.102910][ C0] tmigr_handle_remote_up (kernel/time/timer_migration.c:1003) 
[ 32.103057][ C0] tmigr_handle_remote (kernel/time/timer_migration.c:488 kernel/time/timer_migration.c:1061) 
[ 32.103203][ 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) 
[ 32.103348][ C0] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1026) 
[ 32.103496][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4292 kernel/locking/lockdep.c:4359) 
[ 32.103681][ C0] __do_softirq (kernel/softirq.c:554) 
[ 32.103831][ C0] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) 
[ 32.103941][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) 
[   32.104087][    C0]  </IRQ>
[   32.104163][    C0]  <TASK>
[ 32.104237][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 32.104522][ C0] RIP: 0010:netfs_put_subrequest (fs/netfs/objects.c:174 fs/netfs/objects.c:192) 
[ 32.104711][ C0] Code: 48 89 ef e8 d3 ec ff ff 48 b8 00 00 00 00 00 fc ff df 49 8d bd 70 01 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9e 00 00 00 <49> 8b 9d 70 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 18 48
All code
========
   0:	48 89 ef             	mov    %rbp,%rdi
   3:	e8 d3 ec ff ff       	call   0xffffffffffffecdb
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	49 8d bd 70 01 00 00 	lea    0x170(%r13),%rdi
  19:	48 89 fa             	mov    %rdi,%rdx
  1c:	48 c1 ea 03          	shr    $0x3,%rdx
  20:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  24:	0f 85 9e 00 00 00    	jne    0xc8
  2a:*	49 8b 9d 70 01 00 00 	mov    0x170(%r13),%rbx		<-- trapping instruction
  31:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  38:	fc ff df 
  3b:	48 8d 7b 18          	lea    0x18(%rbx),%rdi
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	49 8b 9d 70 01 00 00 	mov    0x170(%r13),%rbx
   7:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   e:	fc ff df 
  11:	48 8d 7b 18          	lea    0x18(%rbx),%rdi
  15:	48                   	rex.W
[   32.105231][    C0] RSP: 0018:ffffc90000def7d0 EFLAGS: 00000246
[   32.105421][    C0] RAX: dffffc0000000000 RBX: 0000000000000004 RCX: ffffffff8e20d15f
[   32.105643][    C0] RDX: 1ffff11000b9912e RSI: 0000000000000008 RDI: ffff888005cc8970
[   32.105868][    C0] RBP: ffff88800798fe80 R08: 0000000000000000 R09: fffffbfff23b2b5a
[   32.106085][    C0] R10: ffffffff91d95ad7 R11: ffff88800798ff24 R12: 0000000000000000
[   32.106410][    C0] R13: ffff888005cc8800 R14: 0000000000000000 R15: 0000000000001d67
[ 32.106632][ C0] ? trace_netfs_sreq.constprop.0 (./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/netfs.h:252) 
[ 32.106817][ C0] netfs_clear_subrequests (./include/linux/list.h:373 fs/netfs/objects.c:78) 
[ 32.106968][ C0] ? netfs_rreq_prepare_read (fs/netfs/io.c:640) 
[ 32.107116][ C0] netfs_rreq_assess (fs/netfs/io.c:98 fs/netfs/io.c:415) 
[ 32.107263][ C0] netfs_begin_read (fs/netfs/io.c:766) 
[ 32.107411][ C0] ? netfs_extract_user_iter (fs/netfs/iterator.c:39) 
[ 32.107556][ C0] ? __pfx_netfs_begin_read (fs/netfs/io.c:708) 
[ 32.107802][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 32.107947][ C0] ? __pfx_netfs_extract_user_iter (fs/netfs/iterator.c:39) 
[ 32.108128][ C0] ? netfs_alloc_request (fs/netfs/objects.c:64) 
[ 32.108273][ C0] ? 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) 
[ 32.108509][ C0] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) 
[ 32.108658][ C0] ? netfs_alloc_request (fs/netfs/objects.c:64) 
[ 32.108805][ C0] netfs_unbuffered_read_iter_locked (fs/netfs/direct_read.c:84) 
[ 32.108988][ C0] netfs_unbuffered_read_iter (fs/netfs/direct_read.c:121) 
[ 32.109225][ C0] do_iter_readv_writev (./include/linux/fs.h:2102 fs/read_write.c:739) 
[ 32.109373][ C0] ? __pfx_do_iter_readv_writev (fs/read_write.c:728) 
[ 32.109518][ C0] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 32.109666][ C0] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[ 32.109942][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 32.110091][ C0] vfs_iter_read (fs/read_write.c:830) 
[ 32.110238][ C0] backing_file_read_iter (fs/backing-file.c:160) 
[ 32.110385][ C0] ovl_read_iter (./include/linux/file.h:47 fs/overlayfs/file.c:283) 
[ 32.110623][ C0] ? __pfx_ovl_read_iter (fs/overlayfs/file.c:264) 
[ 32.110769][ C0] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:960) 
[ 32.110954][ C0] ? __pfx_ovl_file_accessed (fs/overlayfs/file.c:236) 
[ 32.111102][ C0] vfs_read (./include/linux/fs.h:2102 fs/read_write.c:395 fs/read_write.c:476) 
[ 32.111216][ C0] ? kmem_cache_free (mm/slub.c:4280 mm/slub.c:4344) 
[ 32.111458][ C0] ? __pfx_vfs_read (fs/read_write.c:457) 
[ 32.111604][ C0] ? vfs_fstatat (fs/stat.c:308) 
[ 32.111755][ C0] ? __pfx_do_sys_openat2 (fs/open.c:1392) 
[ 32.111904][ C0] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) 
[ 32.112053][ C0] ksys_read (fs/read_write.c:619) 
[ 32.112172][ C0] ? __pfx_ksys_read (fs/read_write.c:609) 
[ 32.112321][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 32.112466][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   32.112650][    C0] RIP: 0033:0x7eff62baa138
[ 32.112802][ C0] Code: c0 48 8d 44 24 d0 48 89 44 24 c8 eb bb 0f 1f 44 00 00 f7 d8 89 05 b8 f0 00 00 b8 ff ff ff ff c3 66 90 f3 0f 1e fa 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 08 c3 0f 1f 80 00 00 00 00 f7 d8 89 05 90 f0
All code
========
   0:	c0 48 8d 44          	rorb   $0x44,-0x73(%rax)
   4:	24 d0                	and    $0xd0,%al
   6:	48 89 44 24 c8       	mov    %rax,-0x38(%rsp)
   b:	eb bb                	jmp    0xffffffffffffffc8
   d:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  12:	f7 d8                	neg    %eax
  14:	89 05 b8 f0 00 00    	mov    %eax,0xf0b8(%rip)        # 0xf0d2
  1a:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
  1f:	c3                   	ret
  20:	66 90                	xchg   %ax,%ax
  22:	f3 0f 1e fa          	endbr64
  26:	31 c0                	xor    %eax,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 08                	ja     0x3a
  32:	c3                   	ret
  33:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  3a:	f7 d8                	neg    %eax
  3c:	89                   	.byte 0x89
  3d:	05                   	.byte 0x5
  3e:	90                   	nop
  3f:	f0                   	lock

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 08                	ja     0x10
   8:	c3                   	ret
   9:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  10:	f7 d8                	neg    %eax
  12:	89                   	.byte 0x89
  13:	05                   	.byte 0x5
  14:	90                   	nop
  15:	f0                   	lock
[   32.113415][    C0] RSP: 002b:00007ffc950622e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[   32.113638][    C0] RAX: ffffffffffffffda RBX: 00007ffc9506257f RCX: 00007eff62baa138
[   32.113859][    C0] RDX: 0000000000000340 RSI: 00007ffc95062598 RDI: 0000000000000005
[   32.114077][    C0] RBP: 00007ffc95062350 R08: 0000000000080000 R09: 00007ffc95062360
[   32.114295][    C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000340


Finger prints:
dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage