======================================
| [ 12.829263][ C1] #1: ffffc90000b47d40 ((work_completion)(&fsvq->done_work)){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3214) 
| [ 12.829730][ C1] #2: ffffffffb2b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   12.830097][    C1]
| [   12.830097][    C1] stack backtrace:
[   12.830362][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.830365][    C1] Workqueue: events virtio_fs_requests_done_work
[   12.830371][    C1] Call Trace:
[   12.830373][    C1]  <IRQ>
[ 12.830376][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.830382][ C1] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 12.830387][ C1] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 12.830392][ C1] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.830398][ C1] ? save_trace (kernel/locking/lockdep.c:595) 
[ 12.830402][ C1] mark_lock (kernel/locking/lockdep.c:4756) 
[ 12.830406][ C1] mark_usage (kernel/locking/lockdep.c:4645) 
[ 12.830410][ C1] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 12.830413][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.830417][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 12.830421][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.830424][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.830431][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 12.830433][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.830437][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 12.830441][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.830443][ C1] simple_pin_fs (fs/libfs.c:1067) 
[ 12.830446][ C1] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 12.830450][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 12.830455][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 12.830458][ C1] ? __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) 
[ 12.830465][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.830468][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 12.830470][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.830473][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 12.830479][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.830483][ C1] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.830486][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.830490][ C1] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.830494][ C1] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.830500][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.830503][ C1] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.830508][ C1] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.830511][ C1] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.830521][ C1] __put_net (net/core/net_namespace.c:732) 
[ 12.830526][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 12.830530][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.830532][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.830537][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 12.830541][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.830544][ C1] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 12.830548][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.830553][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 12.830558][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 12.830563][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.830567][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.830570][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   12.830573][    C1]  </IRQ>
[   12.830574][    C1]  <TASK>
[ 12.830576][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.830579][ C1] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.830582][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 ba 00 00 00 00 00 fc ff df 41 57 41 56 41 55 49 89 fd 41 54 55 <53> 48 81 ec c8 00 00 00 48 c7 44 24 48 b3 8a b5 41 48 8d 5c 24 48
All code
========
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	f3 0f 1e fa          	endbr64
   f:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  14:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  1b:	fc ff df 
  1e:	41 57                	push   %r15
  20:	41 56                	push   %r14
  22:	41 55                	push   %r13
  24:	49 89 fd             	mov    %rdi,%r13
  27:	41 54                	push   %r12
  29:	55                   	push   %rbp
  2a:*	53                   	push   %rbx		<-- trapping instruction
  2b:	48 81 ec c8 00 00 00 	sub    $0xc8,%rsp
  32:	48 c7 44 24 48 b3 8a 	movq   $0x41b58ab3,0x48(%rsp)
  39:	b5 41 
  3b:	48 8d 5c 24 48       	lea    0x48(%rsp),%rbx

Code starting with the faulting instruction
===========================================
   0:	53                   	push   %rbx
   1:	48 81 ec c8 00 00 00 	sub    $0xc8,%rsp
   8:	48 c7 44 24 48 b3 8a 	movq   $0x41b58ab3,0x48(%rsp)
   f:	b5 41 
  11:	48 8d 5c 24 48       	lea    0x48(%rsp),%rbx
[   12.830585][    C1] RSP: 0018:ffffc90000b476a8 EFLAGS: 00000202
[   12.830589][    C1] RAX: 0000000000000001 RBX: ffffffffaf4c8380 RCX: ffffc90000b47584
[   12.830591][    C1] RDX: dffffc0000000000 RSI: ffffffffafe5ef23 RDI: ffffc90000b476d8
[   12.830593][    C1] RBP: ffffc90000b47770 R08: 0000000000000000 R09: ffffc90000b47719
[   12.830594][    C1] R10: 0000000000000000 R11: ffffc90000b47718 R12: ffffc90000b477a0
[   12.830596][    C1] R13: ffffc90000b476d8 R14: ffff88800b8745c0 R15: ffff888001042dc0
[ 12.830599][ C1] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.830603][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.830608][ C1] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.830613][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.830616][ C1] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.830619][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.830623][ C1] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.830628][ C1] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.830631][ C1] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.830634][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.830637][ C1] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.830640][ C1] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.830643][ C1] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.830646][ C1] ? fuse_request_end (fs/fuse/dev.c:486) 
[ 12.830652][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.830656][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.830660][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.830663][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.830667][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.830670][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.830674][ C1] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 12.830678][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.830682][ C1] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 12.830687][ C1] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3115) 
[ 12.830690][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.830694][ C1] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.830697][ C1] kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.830700][ C1] __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.830704][ C1] kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.830707][ C1] ? fuse_readpages_end (fs/fuse/file.c:937) 
[ 12.830711][ C1] ? fuse_request_end (fs/fuse/dev.c:486) 
[ 12.830714][ C1] ? __pfx_fuse_readpages_end (fs/fuse/file.c:935) 
[ 12.830719][ C1] fuse_request_end (fs/fuse/dev.c:486) 
[ 12.830724][ C1] virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.830729][ C1] virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:851) 
[ 12.830734][ C1] ? __pfx_virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:814) 
[ 12.830738][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.830742][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 12.830748][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 12.830754][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 12.830758][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 12.830763][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 12.830766][ C1] kthread (kernel/kthread.c:464) 
[ 12.830770][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 12.830772][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 12.830776][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 12.830780][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.830783][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 12.830786][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 12.830789][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 12.830792][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   12.856870][    C1] RCU nest depth: 0, expected: 0
| [   12.857067][    C1] INFO: lockdep is turned off.
| [   12.857255][    C1] Preemption disabled at:
| [ 12.857257][ C1] handle_softirqs (kernel/softirq.c:553) 
[   12.857663][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.857666][    C1] Workqueue: events virtio_fs_requests_done_work
[   12.857673][    C1] Call Trace:
[   12.857675][    C1]  <IRQ>
[ 12.857677][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.857685][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 12.857694][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 12.857698][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 12.857701][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 12.857706][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.857713][ C1] ? 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) 
[ 12.857717][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 12.857720][ C1] ? 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) 
[ 12.857723][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 12.857729][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 12.857732][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 12.857738][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 12.857740][ C1] ? __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) 
[ 12.857746][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.857751][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 12.857754][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.857757][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 12.857762][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.857766][ C1] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.857771][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.857774][ C1] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.857778][ C1] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.857784][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.857787][ C1] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.857791][ C1] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.857795][ C1] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.857803][ C1] __put_net (net/core/net_namespace.c:732) 
[ 12.857808][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 12.857812][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.857815][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.857819][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 12.857823][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.857829][ C1] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 12.857832][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.857837][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 12.857843][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 12.857849][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.857852][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.857855][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   12.857859][    C1]  </IRQ>
[   12.857860][    C1]  <TASK>
[ 12.857862][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.857865][ C1] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.857868][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 48 ba 00 00 00 00 00 fc ff df 41 57 41 56 41 55 49 89 fd 41 54 55 <53> 48 81 ec c8 00 00 00 48 c7 44 24 48 b3 8a b5 41 48 8d 5c 24 48
All code
========
   0:	90                   	nop
   1:	90                   	nop
   2:	90                   	nop
   3:	90                   	nop
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	f3 0f 1e fa          	endbr64
   f:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  14:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  1b:	fc ff df 
  1e:	41 57                	push   %r15
  20:	41 56                	push   %r14
  22:	41 55                	push   %r13
  24:	49 89 fd             	mov    %rdi,%r13
  27:	41 54                	push   %r12
  29:	55                   	push   %rbp
  2a:*	53                   	push   %rbx		<-- trapping instruction
  2b:	48 81 ec c8 00 00 00 	sub    $0xc8,%rsp
  32:	48 c7 44 24 48 b3 8a 	movq   $0x41b58ab3,0x48(%rsp)
  39:	b5 41 
  3b:	48 8d 5c 24 48       	lea    0x48(%rsp),%rbx

Code starting with the faulting instruction
===========================================
   0:	53                   	push   %rbx
   1:	48 81 ec c8 00 00 00 	sub    $0xc8,%rsp
   8:	48 c7 44 24 48 b3 8a 	movq   $0x41b58ab3,0x48(%rsp)
   f:	b5 41 
  11:	48 8d 5c 24 48       	lea    0x48(%rsp),%rbx
[   12.857871][    C1] RSP: 0018:ffffc90000b476a8 EFLAGS: 00000202
[   12.857874][    C1] RAX: 0000000000000001 RBX: ffffffffaf4c8380 RCX: ffffc90000b47584
[   12.857876][    C1] RDX: dffffc0000000000 RSI: ffffffffafe5ef23 RDI: ffffc90000b476d8
[   12.857878][    C1] RBP: ffffc90000b47770 R08: 0000000000000000 R09: ffffc90000b47719
[   12.857880][    C1] R10: 0000000000000000 R11: ffffc90000b47718 R12: ffffc90000b477a0
[   12.857881][    C1] R13: ffffc90000b476d8 R14: ffff88800b8745c0 R15: ffff888001042dc0
[ 12.857884][ C1] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.857888][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.857893][ C1] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.857898][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.857901][ C1] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.857904][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.857908][ C1] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.857912][ C1] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.857915][ C1] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.857918][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.857921][ C1] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.857924][ C1] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.857927][ C1] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.857930][ C1] ? fuse_request_end (fs/fuse/dev.c:486) 
[ 12.857934][ C1] ? virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.857938][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.857942][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.857945][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.857949][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.857953][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.857956][ C1] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 12.857960][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.857964][ C1] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 12.857970][ C1] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3115) 
[ 12.857973][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.857977][ C1] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.857980][ C1] kasan_save_free_info (mm/kasan/generic.c:579) 
[ 12.857983][ C1] __kasan_slab_free (mm/kasan/common.c:271) 
[ 12.857987][ C1] kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 12.857990][ C1] ? fuse_readpages_end (fs/fuse/file.c:937) 
[ 12.857994][ C1] ? fuse_request_end (fs/fuse/dev.c:486) 
[ 12.857997][ C1] ? __pfx_fuse_readpages_end (fs/fuse/file.c:935) 
[ 12.858004][ C1] fuse_request_end (fs/fuse/dev.c:486) 
[ 12.858009][ C1] virtio_fs_request_complete (./include/linux/spinlock.h:351 fs/fuse/virtio_fs.c:799) 
[ 12.858015][ C1] virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:851) 
[ 12.858019][ C1] ? __pfx_virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:814) 
[ 12.858024][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.858028][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 12.858035][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 12.858040][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 12.858044][ C1] worker_thread (kernel/workqueue.c:3315 kernel/workqueue.c:3402) 
[ 12.858049][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3348) 
[ 12.858053][ C1] kthread (kernel/kthread.c:464) 
[ 12.858056][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 12.858059][ C1] ? ret_from_fork (arch/x86/kernel/process.c:147) 
[ 12.858064][ C1] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 12.858067][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.858071][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 12.858074][ C1] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 12.858077][ C1] ? __pfx_kthread (kernel/kthread.c:413) 


Finger prints:
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock