======================================
| [ 16.876895][ C2] #4: ffff8880094f72e0 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: __pte_offset_map_lock (./include/linux/pgtable.h:347 ./include/linux/pgtable.h:624 mm/pgtable-generic.c:403) 
| [ 16.877289][ C2] #5: ffffffff889793c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.877635][    C2]
| [   16.877635][    C2] stack backtrace:
[   16.877878][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.877880][    C2] Call Trace:
[   16.877882][    C2]  <IRQ>
[ 16.877883][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.877889][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.877894][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.877901][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.877905][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.877908][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.877912][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:874 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.877916][ C2] ? handle_pte_fault (mm/memory.c:6089) 
[ 16.877920][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.877924][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 16.877927][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.877932][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.877935][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 16.877938][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.877941][ C2] ? xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 16.877944][ C2] xa_set_mark (lib/xarray.c:2076 lib/xarray.c:2146) 
[ 16.877947][ C2] ? __pfx_xa_set_mark (lib/xarray.c:2144) 
[ 16.877949][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.877955][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.877958][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:54 lib/ref_tracker.c:223) 
[ 16.877962][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.877966][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.877969][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:213) 
[ 16.877973][ C2] ? ref_tracker_free (lib/ref_tracker.c:281) 
[ 16.877976][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.877979][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:281) 
[ 16.877982][ 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:2368) 
[ 16.877987][ C2] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 16.877989][ C2] ? rcu_core (kernel/rcu/tree.c:2834) 
[ 16.877992][ C2] ? handle_softirqs (kernel/softirq.c:580) 
[ 16.877996][ C2] __put_net (./include/linux/llist.h:238 ./include/linux/llist.h:265 net/core/net_namespace.c:732) 
[ 16.878000][ C2] ? do_fault_around (mm/memory.c:5568) 
[ 16.878004][ C2] ? __pfx___put_net (net/core/net_namespace.c:729) 
[ 16.878008][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.878014][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2368) 
[ 16.878017][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.878020][ C2] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2578) 
[ 16.878025][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.878029][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.878032][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 16.878035][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.878040][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.878043][ C2] handle_softirqs (kernel/softirq.c:580) 
[ 16.878049][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.878052][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.878056][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.878059][    C2]  </IRQ>
[   16.878060][    C2]  <TASK>
[ 16.878061][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.878065][ C2] RIP: 0010:lock_is_held_type (kernel/locking/lockdep.c:5948) 
[ 16.878069][ C2] Code: 00 00 b8 ff ff ff ff 65 0f c1 05 25 f6 97 02 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
   7:	65 0f c1 05 25 f6 97 	xadd   %eax,%gs:0x297f625(%rip)        # 0x297f634
   e:	02 
   f:	83 f8 01             	cmp    $0x1,%eax
  12:	75 2d                	jne    0x41
  14:	9c                   	pushf
  15:	58                   	pop    %rax
  16:	f6 c4 02             	test   $0x2,%ah
  19:	75 43                	jne    0x5e
  1b:	48 f7 04 24 00 02 00 	testq  $0x200,(%rsp)
  22:	00 
  23:	74 01                	je     0x26
  25:	fb                   	sti
  26:	48 83 c4 08          	add    $0x8,%rsp
  2a:*	44 89 e8             	mov    %r13d,%eax		<-- trapping instruction
  2d:	5b                   	pop    %rbx
  2e:	5d                   	pop    %rbp
  2f:	41 5c                	pop    %r12
  31:	41 5d                	pop    %r13
  33:	41 5e                	pop    %r14
  35:	41 5f                	pop    %r15
  37:	c3                   	ret
  38:	cc                   	int3
  39:	cc                   	int3
  3a:	cc                   	int3
  3b:	cc                   	int3
  3c:	45 31 ed             	xor    %r13d,%r13d
  3f:	eb                   	.byte 0xeb

Code starting with the faulting instruction
===========================================
   0:	44 89 e8             	mov    %r13d,%eax
   3:	5b                   	pop    %rbx
   4:	5d                   	pop    %rbp
   5:	41 5c                	pop    %r12
   7:	41 5d                	pop    %r13
   9:	41 5e                	pop    %r14
   b:	41 5f                	pop    %r15
   d:	c3                   	ret
   e:	cc                   	int3
   f:	cc                   	int3
  10:	cc                   	int3
  11:	cc                   	int3
  12:	45 31 ed             	xor    %r13d,%r13d
  15:	eb                   	.byte 0xeb
[   16.878072][    C2] RSP: 0000:ffffc900007d7948 EFLAGS: 00000286
[   16.878075][    C2] RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000001
[   16.878077][    C2] RDX: 0000000000000000 RSI: ffffffff8848de21 RDI: ffffffff87c5a220
[   16.878078][    C2] RBP: ffffffff889794e0 R08: 0000000000000001 R09: fffff9400018ab40
[   16.878080][    C2] R10: ffffea0000c55a07 R11: ffffffff889794e0 R12: ffff888009f40040
[   16.878082][    C2] R13: 0000000000000001 R14: 00000000ffffffff R15: ffff888009f40ab8
[ 16.878089][ C2] xas_reload (./include/linux/xarray.h:1226 ./include/linux/xarray.h:1624) 
[ 16.878093][ C2] next_uptodate_folio (mm/filemap.c:3577) 
[ 16.878098][ C2] filemap_map_pages (mm/filemap.c:3755) 
[ 16.878105][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3701) 
[ 16.878109][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.878113][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.878116][ C2] ? do_fault_around (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 mm/memory.c:5567) 
[ 16.878120][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3701) 
[ 16.878122][ C2] do_fault_around (mm/memory.c:5568) 
[ 16.878125][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.878129][ C2] do_pte_missing (mm/memory.c:5601 mm/memory.c:5744 mm/memory.c:4251) 
[ 16.878133][ C2] handle_pte_fault (mm/memory.c:6089) 
[ 16.878136][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.878139][ C2] ? __pfx_handle_pte_fault (mm/memory.c:6046) 
[ 16.878143][ C2] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.878146][ C2] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 16.878150][ C2] __handle_mm_fault (mm/memory.c:6232) 
[ 16.878153][ C2] ? __pfx___handle_mm_fault (mm/memory.c:6141) 
[ 16.878156][ C2] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 16.878159][ C2] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 16.878165][ C2] ? __pfx_lock_vma_under_rcu (mm/mmap_lock.c:137) 
[ 16.878169][ C2] handle_mm_fault (mm/memory.c:6413) 
[ 16.878173][ C2] ? __pfx_handle_mm_fault (mm/memory.c:6368) 
[ 16.878175][ 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) 
[ 16.878178][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.878183][ C2] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 16.878187][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.878192][ 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) 
[ 16.878195][ C2] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   16.878198][    C2] RIP: 0033:0x55926e396450
[ 16.878201][ C2] Code: c5 e9 d2 fd ff ff 0f 1f 40 00 83 ff 01 74 87 e9 37 ff ff ff 4c 89 ee 48 8d 3d c6 bb 06 00 31 c0 e8 05 0e 00 00 e9 67 fe ff ff <f3> 0f 1e fa 41 55 55 48 89 fd 53 89 f3 48 83 ec 20 64 48 8b 04 25
All code
========
   0:	c5 e9 d2 fd          	vpsrld %xmm5,%xmm2,%xmm7
   4:	ff                   	(bad)
   5:	ff 0f                	decl   (%rdi)
   7:	1f                   	(bad)
   8:	40 00 83 ff 01 74 87 	rex add %al,-0x788bfe01(%rbx)
   f:	e9 37 ff ff ff       	jmp    0xffffffffffffff4b
  14:	4c 89 ee             	mov    %r13,%rsi
  17:	48 8d 3d c6 bb 06 00 	lea    0x6bbc6(%rip),%rdi        # 0x6bbe4
  1e:	31 c0                	xor    %eax,%eax
  20:	e8 05 0e 00 00       	call   0xe2a
  25:	e9 67 fe ff ff       	jmp    0xfffffffffffffe91
  2a:*	f3 0f 1e fa          	endbr64		<-- trapping instruction
  2e:	41 55                	push   %r13
  30:	55                   	push   %rbp
  31:	48 89 fd             	mov    %rdi,%rbp
  34:	53                   	push   %rbx
  35:	89 f3                	mov    %esi,%ebx
  37:	48 83 ec 20          	sub    $0x20,%rsp
  3b:	64                   	fs
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	04 25                	add    $0x25,%al

Code starting with the faulting instruction
===========================================
   0:	f3 0f 1e fa          	endbr64
   4:	41 55                	push   %r13
   6:	55                   	push   %rbp
   7:	48 89 fd             	mov    %rdi,%rbp
   a:	53                   	push   %rbx
   b:	89 f3                	mov    %esi,%ebx
   d:	48 83 ec 20          	sub    $0x20,%rsp
  11:	64                   	fs
  12:	48                   	rex.W
  13:	8b                   	.byte 0x8b
  14:	04 25                	add    $0x25,%al
[   16.878203][    C2] RSP: 002b:00007ffd37774e08 EFLAGS: 00010206
[   16.878205][    C2] RAX: 000055927119e750 RBX: 0000000000000000 RCX: 0000000000000004
[   16.878207][    C2] RDX: 0000000000000020 RSI: 0000000000000001 RDI: 00005592711c1560
[   16.878209][    C2] RBP: 00000000ffffffff R08: 00005592711b1e40 R09: 0000000000000000
[   16.878210][    C2] R10: 0000000000000008 R11: ce539a4f86592f74 R12: 00000000ffffffff


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