======================================
| [  287.635350][    C1] 1 lock held by tc/2331:
| [  287.635425][    C1]  #0: ffffffffa1577c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  287.635607][    C1]
| [  287.635607][    C1] stack backtrace:
[  287.635734][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  287.635736][    C1] Call Trace:
[  287.635738][    C1]  <IRQ>
[  287.635739][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  287.635744][    C1]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  287.635747][    C1]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  287.635750][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  287.635752][    C1]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  287.635754][    C1]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  287.635756][    C1]  ? save_trace (kernel/locking/lockdep.c:589)
[  287.635757][    C1]  ? execmem_alloc (mm/execmem.c:290 mm/execmem.c:339 mm/execmem.c:475)
[  287.635761][    C1]  mark_lock (kernel/locking/lockdep.c:4753)
[  287.635763][    C1]  mark_usage (kernel/locking/lockdep.c:4642)
[  287.635764][    C1]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  287.635766][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  287.635768][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  287.635772][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  287.635773][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  287.635775][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  287.635777][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  287.635779][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  287.635781][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  287.635782][    C1] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  287.635784][    C1]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  287.635785][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  287.635787][    C1]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  287.635790][    C1]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  287.635792][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  287.635794][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635795][    C1]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  287.635797][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  287.635798][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  287.635800][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[  287.635802][    C1]  rcu_core (kernel/rcu/tree.c:2869)
[  287.635804][    C1]  handle_softirqs (kernel/softirq.c:622)
[  287.635805][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  287.635808][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  287.635809][    C1]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  287.635811][    C1]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  287.635813][    C1]  irq_exit_rcu (kernel/softirq.c:752)
[  287.635814][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  287.635816][    C1]  </IRQ>
[  287.635817][    C1]  <TASK>
[  287.635817][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  287.635819][    C1] RIP: 0010:vm_notify (./arch/x86/include/asm/io.h:67 drivers/virtio/virtio_mmio.c:270)
[  287.635824][    C1] Code: 05 00 00 48 b9 00 00 00 00 00 fc ff df 48 89 fe 48 c1 ee 03 48 83 c2 50 0f b6 0c 0e 84 c9 74 05 80 f9 03 7e 0f 8b 40 28 89 02 <b8> 01 00 00 00 48 83 c4 10 c3 48 89 44 24 08 48 89 14 24 e8 15 bb
All code
========
   0:	05 00 00 48 b9       	add    $0xb9480000,%eax
   5:	00 00                	add    %al,(%rax)
   7:	00 00                	add    %al,(%rax)
   9:	00 fc                	add    %bh,%ah
   b:	ff                   	lcall  (bad)
   c:	df 48 89             	fisttps -0x77(%rax)
   f:	fe 48 c1             	decb   -0x3f(%rax)
  12:	ee                   	out    %al,(%dx)
  13:	03 48 83             	add    -0x7d(%rax),%ecx
  16:	c2 50 0f             	ret    $0xf50
  19:	b6 0c                	mov    $0xc,%dh
  1b:	0e                   	(bad)
  1c:	84 c9                	test   %cl,%cl
  1e:	74 05                	je     0x25
  20:	80 f9 03             	cmp    $0x3,%cl
  23:	7e 0f                	jle    0x34
  25:	8b 40 28             	mov    0x28(%rax),%eax
  28:	89 02                	mov    %eax,(%rdx)
  2a:*	b8 01 00 00 00       	mov    $0x1,%eax		<-- trapping instruction
  2f:	48 83 c4 10          	add    $0x10,%rsp
  33:	c3                   	ret
  34:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  39:	48 89 14 24          	mov    %rdx,(%rsp)
  3d:	e8                   	.byte 0xe8
  3e:	15                   	.byte 0x15
  3f:	bb                   	.byte 0xbb

Code starting with the faulting instruction
===========================================
   0:	b8 01 00 00 00       	mov    $0x1,%eax
   5:	48 83 c4 10          	add    $0x10,%rsp
   9:	c3                   	ret
   a:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
   f:	48 89 14 24          	mov    %rdx,(%rsp)
  13:	e8                   	.byte 0xe8
  14:	15                   	.byte 0x15
  15:	bb                   	.byte 0xbb
[  287.635826][    C1] RSP: 0018:ffa00000007af318 EFLAGS: 00000246
[  287.635828][    C1] RAX: 0000000000000001 RBX: ff11000005c8a800 RCX: 0000000000000000
[  287.635829][    C1] RDX: ffa000000001de50 RSI: 1fe2200000b91505 RDI: ff11000005c8a828
[  287.635830][    C1] RBP: ff11000005c8a842 R08: ffffffff9e33dae9 R09: 1fe2200000ba90b8
[  287.635831][    C1] R10: ffe21c0000ba90b9 R11: ffe21c0000ba90b9 R12: ffa00000007af3e8
[  287.635832][    C1] R13: 0000000000000000 R14: ff110000106899c0 R15: ff11000004c3eac8
[  287.635833][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635836][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635837][    C1]  virtqueue_notify (drivers/virtio/virtio_ring.c:3036)
[  287.635839][    C1]  virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1481)
[  287.635843][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  287.635845][    C1]  ? fuse_open (fs/fuse/file.c:194 fs/fuse/file.c:283)
[  287.635847][    C1]  ? virtio_fs_probe (./include/linux/virtio_config.h:371)
[  287.635849][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  287.635851][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  287.635853][    C1]  ? __create_object (mm/kmemleak.c:785 (discriminator 3))
[  287.635854][    C1]  ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 22))
[  287.635859][    C1]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  287.635861][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635863][    C1]  virtio_fs_send_req (fs/fuse/virtio_fs.c:1517)
[  287.635865][    C1]  __fuse_simple_request (fs/fuse/dev.c:602 fs/fuse/dev.c:699)
[  287.635867][    C1]  fuse_send_open (fs/fuse/fuse_i.h:1262 fs/fuse/file.c:52)
[  287.635869][    C1]  ? fuse_folios_need_send (fs/fuse/file.c:2191)
[  287.635873][    C1]  ? __init_waitqueue_head (kernel/sched/wait.c:12)
[  287.635876][    C1]  ? fuse_file_alloc (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:2031 fs/fuse/file.c:77)
[  287.635878][    C1]  fuse_file_open (fs/fuse/file.c:164)
[  287.635880][    C1]  fuse_open (fs/fuse/file.c:194 fs/fuse/file.c:283)
[  287.635882][    C1]  ? fuse_finish_open (fs/fuse/file.c:234)
[  287.635884][    C1]  do_dentry_open (fs/open.c:947)
[  287.635888][    C1]  vfs_open (fs/open.c:1079)
[  287.635891][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635894][    C1]  backing_file_open (fs/backing-file.c:47)
[  287.635897][    C1]  ovl_open_realfile (fs/overlayfs/file.c:51 (discriminator 1))
[  287.635900][    C1]  ovl_open (fs/overlayfs/file.c:222)
[  287.635902][    C1]  ? ovl_llseek (fs/overlayfs/file.c:255)
[  287.635903][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635905][    C1]  ? ovl_llseek (fs/overlayfs/file.c:255)
[  287.635907][    C1]  do_dentry_open (fs/open.c:947)
[  287.635909][    C1]  vfs_open (fs/open.c:1079)
[  287.635911][    C1]  ? may_open (fs/namei.c:4276)
[  287.635914][    C1]  ? lookup_open.isra.0 (fs/namei.c:4504)
[  287.635916][    C1]  do_open (fs/namei.c:4699)
[  287.635918][    C1]  ? init_file.isra.0 (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 ./include/linux/file_ref.h:61 fs/file_table.c:229)
[  287.635920][    C1]  path_openat (fs/namei.c:4858)
[  287.635922][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  287.635923][    C1]  ? kernel_tmpfile_open (fs/namei.c:4800)
[  287.635925][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  287.635927][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  287.635929][    C1]  do_file_open (fs/namei.c:4887)
[  287.635931][    C1]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[  287.635934][    C1]  ? page_get_link_raw (fs/namei.c:6328)
[  287.635936][    C1]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  287.635938][    C1]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[  287.635939][    C1]  ? alloc_fd (./include/linux/spinlock.h:390 fs/file.c:611)
[  287.635942][    C1]  do_sys_openat2 (fs/open.c:1364 (discriminator 5))
[  287.635944][    C1]  ? build_open_flags (fs/open.c:1212)
[  287.635947][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  287.635949][    C1]  __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[  287.635951][    C1]  ? exc_page_fault (arch/x86/mm/fault.c:1474 arch/x86/mm/fault.c:1527)
[  287.635953][    C1]  ? __ia32_sys_open (fs/open.c:1374)
[  287.635955][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  287.635956][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  287.635958][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  287.635960][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  287.635961][    C1]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  287.635963][    C1]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  287.635964][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  287.635966][    C1] RIP: 0033:0x7f646f9ed625
[  287.635968][    C1] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  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 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[  287.635969][    C1] RSP: 002b:00007fffbae9e050 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[  287.635971][    C1] RAX: ffffffffffffffda RBX: 00007fffbae9e2e0 RCX: 00007f646f9ed625
[  287.635972][    C1] RDX: 0000000000080000 RSI: 00007fffbae9e0d0 RDI: 00000000ffffff9c
[  287.635973][    C1] RBP: 00007fffbae9e050 R08: 00007fffbae9e2c7 R09: 0000000000000000
[  287.635974][    C1] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffbae9e0d0


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock