======================================
| [  903.509484][    C2] 1 lock held by ip/2385:
| [  903.509545][    C2]  #0: ffffffff88377c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  903.509694][    C2]
| [  903.509694][    C2] stack backtrace:
[  903.509795][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  903.509797][    C2] Call Trace:
[  903.509799][    C2]  <IRQ>
[  903.509800][    C2]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  903.509805][    C2]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  903.509808][    C2]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  903.509811][    C2]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  903.509813][    C2]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  903.509815][    C2]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  903.509817][    C2]  ? save_trace (kernel/locking/lockdep.c:589)
[  903.509819][    C2]  ? try_to_unlazy_next (fs/namei.c:833 fs/namei.c:1010)
[  903.509823][    C2]  mark_lock (kernel/locking/lockdep.c:4753)
[  903.509824][    C2]  mark_usage (kernel/locking/lockdep.c:4642)
[  903.509826][    C2]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  903.509827][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  903.509829][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  903.509833][    C2]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  903.509834][    C2]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  903.509836][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  903.509838][    C2]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  903.509840][    C2]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  903.509841][    C2]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  903.509843][    C2] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  903.509845][    C2]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  903.509846][    C2]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  903.509848][    C2]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  903.509851][    C2]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  903.509853][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  903.509854][    C2]  ? 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)
[  903.509856][    C2]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  903.509857][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  903.509859][    C2]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  903.509860][    C2]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[  903.509862][    C2]  rcu_core (kernel/rcu/tree.c:2869)
[  903.509864][    C2]  handle_softirqs (kernel/softirq.c:622)
[  903.509866][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  903.509869][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  903.509870][    C2]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  903.509872][    C2]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  903.509873][    C2]  irq_exit_rcu (kernel/softirq.c:752)
[  903.509875][    C2]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  903.509877][    C2]  </IRQ>
[  903.509877][    C2]  <TASK>
[  903.509878][    C2]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  903.509880][    C2] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 12) kernel/locking/spinlock.c:198 (discriminator 12))
[  903.509882][    C2] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 21 7e ca fd 48 89 df e8 a9 d4 ca fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 30 62 bd fd 65 8b 05 29 0a fe 01 85 c0 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 21 7e ca fd       	call   0xfffffffffdca7e34
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 a9 d4 ca fd       	call   0xfffffffffdcad4c4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 30 62 bd fd       	call   0xfffffffffdbd6264
  34:	65 8b 05 29 0a fe 01 	mov    %gs:0x1fe0a29(%rip),%eax        # 0x1fe0a64
  3b:	85 c0                	test   %eax,%eax
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 30 62 bd fd       	call   0xfffffffffdbd623a
   a:	65 8b 05 29 0a fe 01 	mov    %gs:0x1fe0a29(%rip),%eax        # 0x1fe0a3a
  11:	85 c0                	test   %eax,%eax
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[  903.509884][    C2] RSP: 0018:ffa00000017ef610 EFLAGS: 00000246
[  903.509886][    C2] RAX: 0000000000000082 RBX: ffffffff8859a080 RCX: ffffffff87490613
[  903.509887][    C2] RDX: ff110000088b4640 RSI: ffffffff87e01bcb RDI: ffffffff8786f6c0
[  903.509888][    C2] RBP: 0000000000000292 R08: 0000000000000000 R09: 0000000000000000
[  903.509889][    C2] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000000
[  903.509890][    C2] R13: 0000000000026087 R14: 0000000000000000 R15: ffffffff85c85b0c
[  903.509891][    C2]  ? __fuse_simple_request (fs/fuse/dev.c:705)
[  903.509894][    C2]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  903.509897][    C2]  delete_object_full (mm/kmemleak.c:637 (discriminator 3) mm/kmemleak.c:839 (discriminator 3))
[  903.509899][    C2]  kmem_cache_free (./include/linux/kmemleak.h:50 mm/slub.c:2614 mm/slub.c:6251 mm/slub.c:6378)
[  903.509903][    C2]  __fuse_simple_request (fs/fuse/dev.c:705)
[  903.509905][    C2]  fuse_readlink_folio (fs/fuse/fuse_i.h:1262 fs/fuse/dir.c:1838)
[  903.509907][    C2]  ? fuse_invalidate_attr_mask (fs/fuse/dir.c:307)
[  903.509909][    C2]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  903.509912][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  903.509913][    C2]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  903.509916][    C2]  fuse_get_link (fs/fuse/dir.c:1877)
[  903.509918][    C2]  ovl_get_link (fs/overlayfs/inode.c:332 (discriminator 1) fs/overlayfs/inode.c:324 (discriminator 1))
[  903.509920][    C2]  pick_link (fs/namei.c:2064)
[  903.509922][    C2]  ? ovl_check_rename_whiteout (fs/overlayfs/ovl_entry.h:105)
[  903.509925][    C2]  step_into_slowpath (fs/namei.c:2123)
[  903.509927][    C2]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  903.509929][    C2]  ? pick_link (fs/namei.c:793 (discriminator 12))
[  903.509931][    C2]  ? ovl_dentry_revalidate_common (fs/overlayfs/super.c:150)
[  903.509933][    C2]  ? lookup_fast (fs/namei.c:1030 fs/namei.c:1026 fs/namei.c:1876)
[  903.509935][    C2]  open_last_lookups (fs/namei.c:2148 fs/namei.c:4646)
[  903.509938][    C2]  ? lookup_open.isra.0 (fs/namei.c:4504)
[  903.509940][    C2]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[  903.509942][    C2]  ? 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)
[  903.509945][    C2]  path_openat (fs/namei.c:4855)
[  903.509946][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  903.509948][    C2]  ? kernel_tmpfile_open (fs/namei.c:4800)
[  903.509950][    C2]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  903.509951][    C2]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3))
[  903.509953][    C2]  do_file_open (fs/namei.c:4887)
[  903.509955][    C2]  ? path_openat (./include/linux/mount.h:68 (discriminator 3))
[  903.509959][    C2]  ? 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)
[  903.509961][    C2]  ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1))
[  903.509962][    C2]  ? alloc_fd (./include/linux/spinlock.h:390 fs/file.c:611)
[  903.509965][    C2]  do_sys_openat2 (fs/open.c:1364 (discriminator 5))
[  903.509967][    C2]  ? build_open_flags (fs/open.c:1212)
[  903.509969][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  903.509971][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  903.509973][    C2]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  903.509975][    C2]  __x64_sys_openat (fs/open.c:1370 fs/open.c:1386 fs/open.c:1381 fs/open.c:1381)
[  903.509977][    C2]  ? fput_close_sync (fs/file_table.c:615)
[  903.509978][    C2]  ? __ia32_sys_open (fs/open.c:1374)
[  903.509980][    C2]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[  903.509982][    C2]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  903.509983][    C2]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  903.509985][    C2]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  903.509987][    C2]  ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[  903.509988][    C2]  ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[  903.509990][    C2]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  903.509991][    C2] RIP: 0033:0x7f7bc7998625
[  903.509993][    C2] 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)
[  903.509994][    C2] RSP: 002b:00007fff9f1abf80 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[  903.509996][    C2] RAX: ffffffffffffffda RBX: 00007fff9f1ac210 RCX: 00007f7bc7998625
[  903.509997][    C2] RDX: 0000000000080000 RSI: 00007fff9f1ac000 RDI: 00000000ffffff9c
[  903.509998][    C2] RBP: 00007fff9f1abf80 R08: 00007fff9f1ac1f7 R09: 0000000000000000
[  903.509998][    C2] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff9f1ac000


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