======================================
| [ 18.607267][ C2] #3: ffffffffb3b775e0 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
| [ 18.607689][ C2] #4: ffffffffb3b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   18.608103][    C2]
| [   18.608103][    C2] stack backtrace:
[   18.608405][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.608406][    C2] Call Trace:
[   18.608408][    C2]  <IRQ>
[ 18.608410][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.608416][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 18.608422][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 18.608426][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 18.608430][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 18.608434][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 18.608438][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 18.608441][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 18.608445][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.608449][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 18.608453][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 18.608457][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.608461][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 18.608464][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 18.608468][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 18.608472][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 18.608474][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 18.608478][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 18.608482][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 18.608487][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 18.608489][ 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) 
[ 18.608495][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.608498][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 18.608500][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.608504][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.608508][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.608512][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 18.608515][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.608518][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 18.608521][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 18.608525][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 18.608529][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.608533][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.608536][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.608543][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.608547][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.608551][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.608554][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.608557][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.608561][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.608564][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.608567][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 18.608570][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.608575][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.608580][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.608585][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.608588][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.608591][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.608595][    C2]  </IRQ>
[   18.608596][    C2]  <TASK>
[ 18.608597][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.608600][ C2] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 18.608604][ C2] Code: ff ff ff 65 0f c1 05 fd fb 14 05 83 f8 01 0f 85 3e 01 00 00 9c 58 f6 c4 02 0f 85 29 01 00 00 48 85 db 74 01 fb 48 8b 44 24 30 <65> 48 2b 05 6e bb 14 05 0f 85 3a 01 00 00 48 83 c4 38 5b 5d 41 5c
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 65 0f             	jmp    *0xf(%rbp)
   5:	c1 05 fd fb 14 05 83 	roll   $0x83,0x514fbfd(%rip)        # 0x514fc09
   c:	f8                   	clc
   d:	01 0f                	add    %ecx,(%rdi)
   f:	85 3e                	test   %edi,(%rsi)
  11:	01 00                	add    %eax,(%rax)
  13:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1a:	85 29                	test   %ebp,(%rcx)
  1c:	01 00                	add    %eax,(%rax)
  1e:	00 48 85             	add    %cl,-0x7b(%rax)
  21:	db 74 01 fb          	(bad)  -0x5(%rcx,%rax,1)
  25:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  2a:*	65 48 2b 05 6e bb 14 	sub    %gs:0x514bb6e(%rip),%rax        # 0x514bba0		<-- trapping instruction
  31:	05 
  32:	0f 85 3a 01 00 00    	jne    0x172
  38:	48 83 c4 38          	add    $0x38,%rsp
  3c:	5b                   	pop    %rbx
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12

Code starting with the faulting instruction
===========================================
   0:	65 48 2b 05 6e bb 14 	sub    %gs:0x514bb6e(%rip),%rax        # 0x514bb76
   7:	05 
   8:	0f 85 3a 01 00 00    	jne    0x148
   e:	48 83 c4 38          	add    $0x38,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
[   18.608606][    C2] RSP: 0000:ffffc90000a76b20 EFLAGS: 00000206
[   18.608610][    C2] RAX: 753f4ea02953e100 RBX: 0000000000000200 RCX: 0000000000000001
[   18.608612][    C2] RDX: 0000000000000000 RSI: ffffffffb367ab82 RDI: ffffffffb2e53ca0
[   18.608614][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   18.608615][    C2] R10: 0000000000000000 R11: ffffffffb3b775e0 R12: 0000000000000002
[   18.608617][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb3b775e0
[ 18.608623][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.608626][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 18.608629][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.608633][ C2] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.608636][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.608639][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608645][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 18.608649][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608652][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 18.608657][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 18.608660][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 18.608664][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608669][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 18.608672][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 18.608675][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.608680][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 18.608683][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 18.608686][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.608689][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.608692][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.608695][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608699][ C2] ? check_bytes_and_report (mm/slub.c:1212) 
[ 18.608703][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.608707][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.608710][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.608713][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.608717][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.608720][ C2] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 18.608725][ C2] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 18.608729][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608732][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:518) 
[ 18.608737][ C2] ? virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 18.608741][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608744][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.608748][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.608752][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.608755][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.608758][ C2] ? fuse_send_readpages (fs/fuse/file.c:992 (discriminator 3)) 
[ 18.608763][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.608766][ C2] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.608770][ C2] __create_object (mm/kmemleak.c:770) 
[ 18.608773][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.608776][ C2] __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 18.608781][ C2] virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.608788][ C2] ? __pfx_virtqueue_add_split (drivers/virtio/virtio_ring.c:538) 
[ 18.608794][ C2] virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 18.608799][ C2] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1440) 
[ 18.608804][ C2] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 18.608808][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.608812][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.608817][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.608822][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.608825][ C2] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 18.608828][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.608832][ 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) 
[ 18.608836][ C2] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 18.608839][ C2] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 18.608843][ C2] flush_bg_queue (fs/fuse/dev.c:418) 
[ 18.608849][ C2] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 18.608854][ C2] fuse_simple_background (fs/fuse/dev.c:753) 
[ 18.608858][ C2] fuse_send_readpages (fs/fuse/file.c:995) 
[ 18.608863][ C2] fuse_readahead (fs/fuse/file.c:1033) 
[ 18.608870][ C2] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 18.608877][ C2] read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 18.608881][ C2] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 18.608884][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.608889][ C2] ? __pfx_read_pages (mm/readahead.c:147) 
[ 18.608896][ C2] page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 18.608903][ C2] do_sync_mmap_readahead (mm/filemap.c:3263) 
[ 18.608907][ C2] ? __pfx_do_sync_mmap_readahead (mm/filemap.c:3203) 
[ 18.608913][ C2] ? __filemap_get_folio (mm/filemap.c:1907) 
[ 18.608918][ C2] filemap_fault (mm/filemap.c:3403) 
[ 18.608923][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 18.608927][ C2] ? __pfx_filemap_fault (mm/filemap.c:3362) 
[ 18.608930][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.608933][ C2] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 18.608936][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.608940][ C2] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 18.608945][ C2] __do_fault (mm/memory.c:5098) 
[ 18.608948][ C2] do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 18.608952][ C2] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 18.608956][ C2] handle_pte_fault (mm/memory.c:5997) 
[ 18.608959][ C2] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 18.608963][ C2] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.608966][ C2] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 18.608971][ C2] __handle_mm_fault (mm/memory.c:6140) 
[ 18.608974][ C2] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 18.608976][ C2] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 18.608983][ C2] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 18.608987][ C2] handle_mm_fault (mm/memory.c:6321) 
[ 18.608990][ C2] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 18.608993][ C2] ? task_work_run (./include/linux/sched.h:2089 (discriminator 1) kernel/task_work.c:229 (discriminator 1)) 
[ 18.608997][ C2] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 18.609001][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.609005][ 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) 
[ 18.609009][ C2] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   18.609012][    C2] RIP: 0033:0x7f1bd45c0a30
[ 18.609018][ C2] Code: Unable to access opcode bytes at 0x7f1bd45c0a06.

Code starting with the faulting instruction
===========================================
[   18.609020][    C2] RSP: 002b:00007fffe15e6af0 EFLAGS: 00010202
[   18.609022][    C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   18.609024][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   18.609025][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   18.609027][    C2] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   18.609028][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
| [   18.651649][    C2] RCU nest depth: 1, expected: 0
| [   18.652050][    C2] INFO: lockdep is turned off.
| [   18.652287][    C2] Preemption disabled at:
| [ 18.652289][ C2] 0x0 
[   18.652733][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.652735][    C2] Call Trace:
[   18.652737][    C2]  <IRQ>
[ 18.652739][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.652747][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.652755][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.652759][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.652761][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.652766][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.652772][ 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) 
[ 18.652776][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.652779][ 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) 
[ 18.652782][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.652787][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.652791][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 18.652796][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 18.652798][ 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) 
[ 18.652804][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.652808][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 18.652810][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.652816][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.652820][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.652824][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 18.652828][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.652832][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 18.652836][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 18.652840][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 18.652845][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.652848][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.652853][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.652860][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.652864][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.652868][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.652871][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.652874][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.652878][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.652882][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.652885][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 18.652888][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.652893][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.652897][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.652903][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.652906][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.652909][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.652913][    C2]  </IRQ>
[   18.652914][    C2]  <TASK>
[ 18.652915][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.652918][ C2] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5875) 
[ 18.652922][ C2] Code: ff ff ff 65 0f c1 05 fd fb 14 05 83 f8 01 0f 85 3e 01 00 00 9c 58 f6 c4 02 0f 85 29 01 00 00 48 85 db 74 01 fb 48 8b 44 24 30 <65> 48 2b 05 6e bb 14 05 0f 85 3a 01 00 00 48 83 c4 38 5b 5d 41 5c
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 65 0f             	jmp    *0xf(%rbp)
   5:	c1 05 fd fb 14 05 83 	roll   $0x83,0x514fbfd(%rip)        # 0x514fc09
   c:	f8                   	clc
   d:	01 0f                	add    %ecx,(%rdi)
   f:	85 3e                	test   %edi,(%rsi)
  11:	01 00                	add    %eax,(%rax)
  13:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1a:	85 29                	test   %ebp,(%rcx)
  1c:	01 00                	add    %eax,(%rax)
  1e:	00 48 85             	add    %cl,-0x7b(%rax)
  21:	db 74 01 fb          	(bad)  -0x5(%rcx,%rax,1)
  25:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  2a:*	65 48 2b 05 6e bb 14 	sub    %gs:0x514bb6e(%rip),%rax        # 0x514bba0		<-- trapping instruction
  31:	05 
  32:	0f 85 3a 01 00 00    	jne    0x172
  38:	48 83 c4 38          	add    $0x38,%rsp
  3c:	5b                   	pop    %rbx
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12

Code starting with the faulting instruction
===========================================
   0:	65 48 2b 05 6e bb 14 	sub    %gs:0x514bb6e(%rip),%rax        # 0x514bb76
   7:	05 
   8:	0f 85 3a 01 00 00    	jne    0x148
   e:	48 83 c4 38          	add    $0x38,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
[   18.652925][    C2] RSP: 0000:ffffc90000a76b20 EFLAGS: 00000206
[   18.652928][    C2] RAX: 753f4ea02953e100 RBX: 0000000000000200 RCX: 0000000000000001
[   18.652930][    C2] RDX: 0000000000000000 RSI: ffffffffb367ab82 RDI: ffffffffb2e53ca0
[   18.652932][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   18.652934][    C2] R10: 0000000000000000 R11: ffffffffb3b775e0 R12: 0000000000000002
[   18.652935][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffb3b775e0
[ 18.652941][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.652945][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 18.652947][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.652951][ C2] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.652954][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 18.652957][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.652963][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 18.652968][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.652971][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 18.652975][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 18.652979][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 18.652984][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.652989][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 18.652992][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 18.652995][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.653000][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 18.653003][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 18.653006][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.653009][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.653012][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.653015][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.653019][ C2] ? check_bytes_and_report (mm/slub.c:1212) 
[ 18.653023][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.653027][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 18.653030][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 18.653035][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 18.653039][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.653042][ C2] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 18.653047][ C2] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 18.653051][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.653054][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:518) 
[ 18.653058][ C2] ? virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 18.653062][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.653066][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 18.653069][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 18.653073][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 18.653077][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.653079][ C2] ? fuse_send_readpages (fs/fuse/file.c:992 (discriminator 3)) 
[ 18.653085][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.653088][ C2] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 18.653092][ C2] __create_object (mm/kmemleak.c:770) 
[ 18.653095][ C2] ? virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.653098][ C2] __kmalloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4326 mm/slub.c:4339) 
[ 18.653104][ C2] virtqueue_add_split (drivers/virtio/virtio_ring.c:493 drivers/virtio/virtio_ring.c:564) 
[ 18.653110][ C2] ? __pfx_virtqueue_add_split (drivers/virtio/virtio_ring.c:538) 
[ 18.653116][ C2] virtqueue_add_sgs (drivers/virtio/virtio_ring.c:2282 drivers/virtio/virtio_ring.c:2316) 
[ 18.653121][ C2] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1440) 
[ 18.653127][ C2] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 18.653130][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 18.653134][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 18.653139][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.653144][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.653147][ C2] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 18.653150][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.653154][ 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) 
[ 18.653158][ C2] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 18.653161][ C2] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 18.653165][ C2] flush_bg_queue (fs/fuse/dev.c:418) 
[ 18.653170][ C2] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 18.653175][ C2] fuse_simple_background (fs/fuse/dev.c:753) 
[ 18.653180][ C2] fuse_send_readpages (fs/fuse/file.c:995) 
[ 18.653185][ C2] fuse_readahead (fs/fuse/file.c:1033) 
[ 18.653192][ C2] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 18.653199][ C2] read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 18.653204][ C2] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 18.653207][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.653212][ C2] ? __pfx_read_pages (mm/readahead.c:147) 
[ 18.653219][ C2] page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 18.653225][ C2] do_sync_mmap_readahead (mm/filemap.c:3263) 
[ 18.653230][ C2] ? __pfx_do_sync_mmap_readahead (mm/filemap.c:3203) 
[ 18.653235][ C2] ? __filemap_get_folio (mm/filemap.c:1907) 
[ 18.653240][ C2] filemap_fault (mm/filemap.c:3403) 
[ 18.653245][ C2] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 18.653248][ C2] ? __pfx_filemap_fault (mm/filemap.c:3362) 
[ 18.653252][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 18.653255][ C2] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 18.653258][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.653262][ C2] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 18.653266][ C2] __do_fault (mm/memory.c:5098) 
[ 18.653270][ C2] do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 18.653274][ C2] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 18.653278][ C2] handle_pte_fault (mm/memory.c:5997) 
[ 18.653281][ C2] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 18.653285][ C2] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.653288][ C2] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 18.653293][ C2] __handle_mm_fault (mm/memory.c:6140) 
[ 18.653296][ C2] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 18.653298][ C2] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 18.653305][ C2] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 18.653309][ C2] handle_mm_fault (mm/memory.c:6321) 
[ 18.653312][ C2] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 18.653315][ C2] ? task_work_run (./include/linux/sched.h:2089 (discriminator 1) kernel/task_work.c:229 (discriminator 1)) 
[ 18.653319][ C2] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 18.653323][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.653327][ 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) 
[ 18.653331][ C2] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   18.653333][    C2] RIP: 0033:0x7f1bd45c0a30
[ 18.653340][ C2] Code: Unable to access opcode bytes at 0x7f1bd45c0a06.

Code starting with the faulting instruction
===========================================
[   18.653341][    C2] RSP: 002b:00007fffe15e6af0 EFLAGS: 00010202
[   18.653343][    C2] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   18.653345][    C2] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   18.653346][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   18.653347][    C2] R10: 0000000000000000 R11: 0000000000000000 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