======================================
| [ 13.114682][ C2] #5: ffffffff953775e0 (rcu_read_lock){....}-{1:3}, at: page_ref_add_unless.constprop.0 (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/page_ref.h:235) 
| [ 13.115111][ C2] #6: ffffffff953774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   13.115491][    C2]
| [   13.115491][    C2] stack backtrace:
[   13.115763][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.115766][    C2] Call Trace:
[   13.115768][    C2]  <IRQ>
[ 13.115770][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.115778][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 13.115783][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 13.115787][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.115793][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 13.115798][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 13.115802][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 13.115805][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 13.115809][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 13.115813][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 13.115816][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 13.115820][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.115826][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 13.115829][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 13.115833][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 13.115837][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 13.115839][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 13.115842][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 13.115846][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 13.115852][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 13.115854][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 13.115861][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.115864][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 13.115866][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.115870][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 13.115875][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.115880][ C2] ? kasan_check_range (mm/kasan/generic.c:190) 
[ 13.115885][ C2] ? page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.115888][ C2] ? next_uptodate_folio (mm/filemap.c:3563) 
[ 13.115891][ C2] ? filemap_map_pages (mm/filemap.c:3746) 
[ 13.115894][ C2] ? do_fault_around (mm/memory.c:5476) 
[ 13.115897][ C2] ? do_pte_missing (mm/memory.c:5509 mm/memory.c:5652 mm/memory.c:4160) 
[ 13.115901][ C2] ? handle_pte_fault (mm/memory.c:5997) 
[ 13.115903][ C2] ? __handle_mm_fault (mm/memory.c:6140) 
[ 13.115908][ C2] __put_net (net/core/net_namespace.c:732) 
[ 13.115913][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 13.115917][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.115920][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.115925][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 13.115928][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 13.115932][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 13.115935][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 13.115940][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 13.115945][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 13.115951][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.115954][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.115957][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   13.115961][    C2]  </IRQ>
[   13.115962][    C2]  <TASK>
[ 13.115964][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.115967][ C2] RIP: 0010:kasan_check_range (mm/kasan/generic.c:190) 
[ 13.115970][ C2] Code: 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 0f 84 4c ff ff ff 41 83 e2 07 49 39 d1 0f 85 34 ff ff ff 45 3a 11 0f 8d 2b ff ff ff <5b> b8 01 00 00 00 5d 41 5c e9 7c f4 0a 02 41 bc 08 00 00 00 45 29
All code
========
   0:	00 74 f2 48          	add    %dh,0x48(%rdx,%rsi,8)
   4:	89 c2                	mov    %eax,%edx
   6:	b8 01 00 00 00       	mov    $0x1,%eax
   b:	48 85 d2             	test   %rdx,%rdx
   e:	0f 84 4c ff ff ff    	je     0xffffffffffffff60
  14:	41 83 e2 07          	and    $0x7,%r10d
  18:	49 39 d1             	cmp    %rdx,%r9
  1b:	0f 85 34 ff ff ff    	jne    0xffffffffffffff55
  21:	45 3a 11             	cmp    (%r9),%r10b
  24:	0f 8d 2b ff ff ff    	jge    0xffffffffffffff55
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	b8 01 00 00 00       	mov    $0x1,%eax
  30:	5d                   	pop    %rbp
  31:	41 5c                	pop    %r12
  33:	e9 7c f4 0a 02       	jmp    0x20af4b4
  38:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  3e:	45                   	rex.RB
  3f:	29                   	.byte 0x29

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	b8 01 00 00 00       	mov    $0x1,%eax
   6:	5d                   	pop    %rbp
   7:	41 5c                	pop    %r12
   9:	e9 7c f4 0a 02       	jmp    0x20af48a
   e:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  14:	45                   	rex.RB
  15:	29                   	.byte 0x29
[   13.115973][    C2] RSP: 0000:ffffc900004d7978 EFLAGS: 00000246
[   13.115977][    C2] RAX: fffff9400006766f RBX: fffff9400006766f RCX: ffffffff9210e1a3
[   13.115979][    C2] RDX: fffff9400006766f RSI: 0000000000000004 RDI: ffffea000033b374
[   13.115980][    C2] RBP: fffff9400006766e R08: 0000000000000001 R09: fffff9400006766e
[   13.115982][    C2] R10: ffffea000033b377 R11: ffffffff953775e0 R12: dffffc0000000000
[   13.115984][    C2] R13: ffffea000033b340 R14: 1ffff9200009af5f R15: ffffc900004d7af8
[ 13.115988][ C2] ? page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.115993][ C2] page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.115997][ C2] next_uptodate_folio (mm/filemap.c:3563) 
[ 13.116001][ C2] filemap_map_pages (mm/filemap.c:3746) 
[ 13.116005][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 13.116009][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 13.116016][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 13.116021][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.116024][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 13.116027][ C2] ? do_fault_around (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 mm/memory.c:5475) 
[ 13.116031][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 13.116034][ C2] do_fault_around (mm/memory.c:5476) 
[ 13.116039][ C2] do_pte_missing (mm/memory.c:5509 mm/memory.c:5652 mm/memory.c:4160) 
[ 13.116042][ C2] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 13.116046][ C2] handle_pte_fault (mm/memory.c:5997) 
[ 13.116049][ C2] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 13.116053][ C2] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 13.116056][ C2] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 13.116061][ C2] __handle_mm_fault (mm/memory.c:6140) 
[ 13.116064][ C2] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 13.116066][ C2] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 13.116073][ C2] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 13.116076][ C2] handle_mm_fault (mm/memory.c:6321) 
[ 13.116079][ C2] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 13.116082][ C2] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 13.116085][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 13.116090][ C2] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 13.116094][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.116098][ C2] exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 13.116102][ C2] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   13.116104][    C2] RIP: 0033:0x7f722afa9d77
[ 13.116108][ C2] Code: 1f 40 00 f3 0f 1e fa 66 0f 6e ce 89 f8 25 ff 0f 00 00 66 0f 60 c9 3d c0 0f 00 00 66 0f 61 c9 66 0f 70 c9 00 0f 8f 69 01 00 00 <f3> 0f 6f 07 66 0f ef db 66 0f 6f e0 66 0f 74 c1 66 0f 74 e3 66 0f
All code
========
   0:	1f                   	(bad)
   1:	40 00 f3             	add    %sil,%bl
   4:	0f 1e fa             	nop    %edx
   7:	66 0f 6e ce          	movd   %esi,%xmm1
   b:	89 f8                	mov    %edi,%eax
   d:	25 ff 0f 00 00       	and    $0xfff,%eax
  12:	66 0f 60 c9          	punpcklbw %xmm1,%xmm1
  16:	3d c0 0f 00 00       	cmp    $0xfc0,%eax
  1b:	66 0f 61 c9          	punpcklwd %xmm1,%xmm1
  1f:	66 0f 70 c9 00       	pshufd $0x0,%xmm1,%xmm1
  24:	0f 8f 69 01 00 00    	jg     0x193
  2a:*	f3 0f 6f 07          	movdqu (%rdi),%xmm0		<-- trapping instruction
  2e:	66 0f ef db          	pxor   %xmm3,%xmm3
  32:	66 0f 6f e0          	movdqa %xmm0,%xmm4
  36:	66 0f 74 c1          	pcmpeqb %xmm1,%xmm0
  3a:	66 0f 74 e3          	pcmpeqb %xmm3,%xmm4
  3e:	66                   	data16
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	f3 0f 6f 07          	movdqu (%rdi),%xmm0
   4:	66 0f ef db          	pxor   %xmm3,%xmm3
   8:	66 0f 6f e0          	movdqa %xmm0,%xmm4
   c:	66 0f 74 c1          	pcmpeqb %xmm1,%xmm0
  10:	66 0f 74 e3          	pcmpeqb %xmm3,%xmm4
  14:	66                   	data16
  15:	0f                   	.byte 0xf
[   13.116110][    C2] RSP: 002b:00007ffef5c74e08 EFLAGS: 00010283
[   13.116113][    C2] RAX: 00000000000005d0 RBX: 00007ffef5c74e40 RCX: 0000000000000000
[   13.116114][    C2] RDX: 00007ffef5c74e58 RSI: 0000000000000024 RDI: 0000559fd404d5d0
[   13.116116][    C2] RBP: 00007ffef5c75380 R08: 0000000000000000 R09: 0000000000000000
[   13.116117][    C2] R10: 00007ffef5c74e40 R11: 0000000000000246 R12: 0000000000000000
[   13.116119][    C2] R13: 00007f722afdd220 R14: 0000559fd404d5d0 R15: 0000000000000000
| [   13.141359][    C2] RCU nest depth: 4, expected: 0
| [   13.141595][    C2] INFO: lockdep is turned off.
| [   13.141833][    C2] Preemption disabled at:
| [ 13.141835][ C2] 0x0 
[   13.142242][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.142244][    C2] Call Trace:
[   13.142247][    C2]  <IRQ>
[ 13.142248][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.142257][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 13.142267][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 13.142272][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 13.142275][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 13.142281][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.142288][ 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) 
[ 13.142292][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 13.142296][ 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) 
[ 13.142298][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 13.142304][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 13.142308][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 13.142313][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 13.142315][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 13.142322][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.142326][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 13.142329][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.142335][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 13.142340][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.142345][ C2] ? kasan_check_range (mm/kasan/generic.c:190) 
[ 13.142350][ C2] ? page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.142356][ C2] ? next_uptodate_folio (mm/filemap.c:3563) 
[ 13.142359][ C2] ? filemap_map_pages (mm/filemap.c:3746) 
[ 13.142362][ C2] ? do_fault_around (mm/memory.c:5476) 
[ 13.142368][ C2] ? do_pte_missing (mm/memory.c:5509 mm/memory.c:5652 mm/memory.c:4160) 
[ 13.142372][ C2] ? handle_pte_fault (mm/memory.c:5997) 
[ 13.142374][ C2] ? __handle_mm_fault (mm/memory.c:6140) 
[ 13.142379][ C2] __put_net (net/core/net_namespace.c:732) 
[ 13.142384][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 13.142388][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.142391][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 13.142395][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 13.142399][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 13.142405][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 13.142408][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 13.142412][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 13.142417][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 13.142423][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.142426][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.142429][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   13.142433][    C2]  </IRQ>
[   13.142434][    C2]  <TASK>
[ 13.142435][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.142438][ C2] RIP: 0010:kasan_check_range (mm/kasan/generic.c:190) 
[ 13.142442][ C2] Code: 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 0f 84 4c ff ff ff 41 83 e2 07 49 39 d1 0f 85 34 ff ff ff 45 3a 11 0f 8d 2b ff ff ff <5b> b8 01 00 00 00 5d 41 5c e9 7c f4 0a 02 41 bc 08 00 00 00 45 29
All code
========
   0:	00 74 f2 48          	add    %dh,0x48(%rdx,%rsi,8)
   4:	89 c2                	mov    %eax,%edx
   6:	b8 01 00 00 00       	mov    $0x1,%eax
   b:	48 85 d2             	test   %rdx,%rdx
   e:	0f 84 4c ff ff ff    	je     0xffffffffffffff60
  14:	41 83 e2 07          	and    $0x7,%r10d
  18:	49 39 d1             	cmp    %rdx,%r9
  1b:	0f 85 34 ff ff ff    	jne    0xffffffffffffff55
  21:	45 3a 11             	cmp    (%r9),%r10b
  24:	0f 8d 2b ff ff ff    	jge    0xffffffffffffff55
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	b8 01 00 00 00       	mov    $0x1,%eax
  30:	5d                   	pop    %rbp
  31:	41 5c                	pop    %r12
  33:	e9 7c f4 0a 02       	jmp    0x20af4b4
  38:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  3e:	45                   	rex.RB
  3f:	29                   	.byte 0x29

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	b8 01 00 00 00       	mov    $0x1,%eax
   6:	5d                   	pop    %rbp
   7:	41 5c                	pop    %r12
   9:	e9 7c f4 0a 02       	jmp    0x20af48a
   e:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  14:	45                   	rex.RB
  15:	29                   	.byte 0x29
[   13.142444][    C2] RSP: 0000:ffffc900004d7978 EFLAGS: 00000246
[   13.142448][    C2] RAX: fffff9400006766f RBX: fffff9400006766f RCX: ffffffff9210e1a3
[   13.142450][    C2] RDX: fffff9400006766f RSI: 0000000000000004 RDI: ffffea000033b374
[   13.142452][    C2] RBP: fffff9400006766e R08: 0000000000000001 R09: fffff9400006766e
[   13.142454][    C2] R10: ffffea000033b377 R11: ffffffff953775e0 R12: dffffc0000000000
[   13.142456][    C2] R13: ffffea000033b340 R14: 1ffff9200009af5f R15: ffffc900004d7af8
[ 13.142459][ C2] ? page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.142467][ C2] page_ref_add_unless.constprop.0 (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-arch-fallback.h:2426 ./include/linux/atomic/atomic-arch-fallback.h:2456 ./include/linux/atomic/atomic-instrumented.h:1518 ./include/linux/page_ref.h:238) 
[ 13.142470][ C2] next_uptodate_folio (mm/filemap.c:3563) 
[ 13.142475][ C2] filemap_map_pages (mm/filemap.c:3746) 
[ 13.142478][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 13.142484][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 13.142492][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 13.142497][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.142500][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 13.142503][ C2] ? do_fault_around (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 mm/memory.c:5475) 
[ 13.142507][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 13.142510][ C2] do_fault_around (mm/memory.c:5476) 
[ 13.142515][ C2] do_pte_missing (mm/memory.c:5509 mm/memory.c:5652 mm/memory.c:4160) 
[ 13.142518][ C2] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 13.142522][ C2] handle_pte_fault (mm/memory.c:5997) 
[ 13.142526][ C2] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 13.142530][ C2] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 13.142533][ C2] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 13.142539][ C2] __handle_mm_fault (mm/memory.c:6140) 
[ 13.142542][ C2] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 13.142545][ C2] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 13.142552][ C2] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 13.142556][ C2] handle_mm_fault (mm/memory.c:6321) 
[ 13.142558][ C2] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 13.142561][ C2] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 13.142564][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 13.142569][ C2] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 13.142573][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 13.142577][ C2] exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 13.142581][ C2] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   13.142583][    C2] RIP: 0033:0x7f722afa9d77
[ 13.142586][ C2] Code: 1f 40 00 f3 0f 1e fa 66 0f 6e ce 89 f8 25 ff 0f 00 00 66 0f 60 c9 3d c0 0f 00 00 66 0f 61 c9 66 0f 70 c9 00 0f 8f 69 01 00 00 <f3> 0f 6f 07 66 0f ef db 66 0f 6f e0 66 0f 74 c1 66 0f 74 e3 66 0f
All code
========
   0:	1f                   	(bad)
   1:	40 00 f3             	add    %sil,%bl
   4:	0f 1e fa             	nop    %edx
   7:	66 0f 6e ce          	movd   %esi,%xmm1
   b:	89 f8                	mov    %edi,%eax
   d:	25 ff 0f 00 00       	and    $0xfff,%eax
  12:	66 0f 60 c9          	punpcklbw %xmm1,%xmm1
  16:	3d c0 0f 00 00       	cmp    $0xfc0,%eax
  1b:	66 0f 61 c9          	punpcklwd %xmm1,%xmm1
  1f:	66 0f 70 c9 00       	pshufd $0x0,%xmm1,%xmm1
  24:	0f 8f 69 01 00 00    	jg     0x193
  2a:*	f3 0f 6f 07          	movdqu (%rdi),%xmm0		<-- trapping instruction
  2e:	66 0f ef db          	pxor   %xmm3,%xmm3
  32:	66 0f 6f e0          	movdqa %xmm0,%xmm4
  36:	66 0f 74 c1          	pcmpeqb %xmm1,%xmm0
  3a:	66 0f 74 e3          	pcmpeqb %xmm3,%xmm4
  3e:	66                   	data16
  3f:	0f                   	.byte 0xf

Code starting with the faulting instruction
===========================================
   0:	f3 0f 6f 07          	movdqu (%rdi),%xmm0
   4:	66 0f ef db          	pxor   %xmm3,%xmm3
   8:	66 0f 6f e0          	movdqa %xmm0,%xmm4
   c:	66 0f 74 c1          	pcmpeqb %xmm1,%xmm0
  10:	66 0f 74 e3          	pcmpeqb %xmm3,%xmm4
  14:	66                   	data16
  15:	0f                   	.byte 0xf
[   13.142588][    C2] RSP: 002b:00007ffef5c74e08 EFLAGS: 00010283
[   13.142590][    C2] RAX: 00000000000005d0 RBX: 00007ffef5c74e40 RCX: 0000000000000000
[   13.142592][    C2] RDX: 00007ffef5c74e58 RSI: 0000000000000024 RDI: 0000559fd404d5d0
[   13.142594][    C2] RBP: 00007ffef5c75380 R08: 0000000000000000 R09: 0000000000000000
[   13.142595][    C2] R10: 00007ffef5c74e40 R11: 0000000000000246 R12: 0000000000000000


Finger prints:
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock