======================================
| [ 16.566113][ C3] #1: ffff8880095551c8 (&fc->bg_lock){+.+.}-{3:3}, at: fuse_request_queue_background (fs/fuse/dev.c:720) 
| [ 16.566591][ C3] #2: ffffffff901774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.567018][    C3]
| [   16.567018][    C3] stack backtrace:
[   16.567322][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.567325][    C3] Call Trace:
[   16.567327][    C3]  <IRQ>
[ 16.567329][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.567335][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.567340][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.567344][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.567349][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.567355][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.567358][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.567361][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.567365][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.567369][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.567372][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.567376][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.567380][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.567383][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.567388][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.567391][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.567395][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 16.567399][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.567402][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.567407][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.567411][ C3] ? __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) 
[ 16.567416][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.567419][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.567422][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.567425][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.567429][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.567433][ C3] ? lock_release (kernel/locking/lockdep.c:5896) 
[ 16.567435][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.567438][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.567443][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 16.567445][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 16.567450][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.567453][ C3] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.567456][ C3] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.567461][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.567465][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.567469][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.567472][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.567475][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.567479][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.567482][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.567485][ C3] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 16.567488][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.567492][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.567496][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.567501][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.567504][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.567507][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.567510][    C3]  </IRQ>
[   16.567511][    C3]  <TASK>
[ 16.567513][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.567516][ C3] RIP: 0010:lock_release (kernel/locking/lockdep.c:5896) 
[ 16.567520][ C3] Code: c7 0a 89 c7 8f e8 bf d9 7a 02 b8 ff ff ff ff 65 0f c1 05 42 8e 14 05 83 f8 01 75 16 9c 58 f6 c4 02 75 2c 80 e7 02 74 01 fb 5b <5d> 41 5c e9 97 15 7d 02 90 0f 0b 90 48 c7 c7 e4 f4 c8 8f e8 87 d9
All code
========
   0:	c7                   	(bad)
   1:	0a 89 c7 8f e8 bf    	or     -0x40177039(%rcx),%cl
   7:	d9 7a 02             	fnstcw 0x2(%rdx)
   a:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
   f:	65 0f c1 05 42 8e 14 	xadd   %eax,%gs:0x5148e42(%rip)        # 0x5148e59
  16:	05 
  17:	83 f8 01             	cmp    $0x1,%eax
  1a:	75 16                	jne    0x32
  1c:	9c                   	pushf
  1d:	58                   	pop    %rax
  1e:	f6 c4 02             	test   $0x2,%ah
  21:	75 2c                	jne    0x4f
  23:	80 e7 02             	and    $0x2,%bh
  26:	74 01                	je     0x29
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
  2a:*	5d                   	pop    %rbp		<-- trapping instruction
  2b:	41 5c                	pop    %r12
  2d:	e9 97 15 7d 02       	jmp    0x27d15c9
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	48 c7 c7 e4 f4 c8 8f 	mov    $0xffffffff8fc8f4e4,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	87 d9                	xchg   %ebx,%ecx

Code starting with the faulting instruction
===========================================
   0:	5d                   	pop    %rbp
   1:	41 5c                	pop    %r12
   3:	e9 97 15 7d 02       	jmp    0x27d159f
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	48 c7 c7 e4 f4 c8 8f 	mov    $0xffffffff8fc8f4e4,%rdi
  13:	e8                   	.byte 0xe8
  14:	87 d9                	xchg   %ebx,%ecx
[   16.567522][    C3] RSP: 0000:ffffc90000ad6ec0 EFLAGS: 00000202
[   16.567526][    C3] RAX: 0000000000000046 RBX: 1ffff9200015ade4 RCX: ffffc90000ad6e84
[   16.567528][    C3] RDX: 0000000000000002 RSI: ffffffff8fc7890a RDI: ffffffff8f453be0
[   16.567529][    C3] RBP: ffffffff901775e0 R08: 0000000000000000 R09: ffffc90000ad7019
[   16.567531][    C3] R10: 0000000000000000 R11: ffffc90000ad7018 R12: ffffffff8c812a2e
[   16.567533][    C3] R13: ffffc90000ad6fd8 R14: ffffc90000ad0000 R15: ffffc90000ad78c8
[ 16.567535][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.567541][ C3] unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.567544][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.567550][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.567554][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.567557][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 16.567561][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 16.567565][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.567570][ C3] ? read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 16.567574][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 16.567577][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 16.567579][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.567584][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 16.567586][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 16.567589][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.567592][ C3] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.567594][ C3] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.567597][ C3] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 16.567602][ C3] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.567606][ C3] ? virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 16.567610][ C3] ? flush_bg_queue (fs/fuse/dev.c:418) 
[ 16.567612][ C3] ? fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 16.567616][ C3] ? fuse_simple_background (fs/fuse/dev.c:753) 
[ 16.567618][ C3] ? fuse_send_readpages (fs/fuse/file.c:995) 
[ 16.567622][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.567625][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.567630][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.567633][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.567636][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.567639][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.567642][ C3] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 16.567646][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.567651][ C3] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 16.567656][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.567659][ C3] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3115) 
[ 16.567662][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.567665][ C3] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.567668][ C3] kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.567671][ C3] __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.567674][ C3] kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 16.567677][ C3] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.567682][ C3] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.567688][ C3] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 16.567692][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.567696][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.567701][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.567705][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.567709][ C3] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 16.567712][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.567716][ C3] ? 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) 
[ 16.567721][ C3] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 16.567724][ C3] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 16.567728][ C3] flush_bg_queue (fs/fuse/dev.c:418) 
[ 16.567733][ C3] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 16.567738][ C3] fuse_simple_background (fs/fuse/dev.c:753) 
[ 16.567741][ C3] fuse_send_readpages (fs/fuse/file.c:995) 
[ 16.567746][ C3] fuse_readahead (fs/fuse/file.c:1033) 
[ 16.567753][ C3] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 16.567760][ C3] read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 16.567763][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 16.567768][ C3] ? __pfx_read_pages (mm/readahead.c:147) 
[ 16.567770][ C3] ? xa_load (lib/xarray.c:1613) 
[ 16.567777][ C3] page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 16.567783][ C3] filemap_fault (mm/filemap.c:3290 mm/filemap.c:3389) 
[ 16.567789][ C3] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 16.567792][ C3] ? __pfx_filemap_fault (mm/filemap.c:3362) 
[ 16.567798][ C3] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 16.567803][ C3] __do_fault (mm/memory.c:5098) 
[ 16.567807][ C3] do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 16.567810][ C3] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 16.567813][ C3] handle_pte_fault (mm/memory.c:5997) 
[ 16.567818][ C3] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 16.567821][ C3] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.567824][ C3] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 16.567828][ C3] __handle_mm_fault (mm/memory.c:6140) 
[ 16.567832][ C3] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 16.567835][ C3] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 16.567842][ C3] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 16.567846][ C3] handle_mm_fault (mm/memory.c:6321) 
[ 16.567850][ C3] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 16.567853][ C3] ? 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) 
[ 16.567857][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.567861][ C3] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 16.567865][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.567869][ C3] 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) 
[ 16.567873][ C3] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   16.567875][    C3] RIP: 0033:0x7f46b931ba30
[ 16.567879][ C3] Code: 01 d1 4c 01 d7 4c 01 c9 48 39 f1 48 0f 45 f7 48 8b 0d 84 40 01 00 84 d2 48 8b 79 08 4a 8d 0c 27 48 0f 45 f9 48 39 c3 76 24 90 <48> 8b 10 4c 01 e2 83 78 08 08 0f 85 50 02 00 00 48 8b 48 10 48 83
All code
========
   0:	01 d1                	add    %edx,%ecx
   2:	4c 01 d7             	add    %r10,%rdi
   5:	4c 01 c9             	add    %r9,%rcx
   8:	48 39 f1             	cmp    %rsi,%rcx
   b:	48 0f 45 f7          	cmovne %rdi,%rsi
   f:	48 8b 0d 84 40 01 00 	mov    0x14084(%rip),%rcx        # 0x1409a
  16:	84 d2                	test   %dl,%dl
  18:	48 8b 79 08          	mov    0x8(%rcx),%rdi
  1c:	4a 8d 0c 27          	lea    (%rdi,%r12,1),%rcx
  20:	48 0f 45 f9          	cmovne %rcx,%rdi
  24:	48 39 c3             	cmp    %rax,%rbx
  27:	76 24                	jbe    0x4d
  29:	90                   	nop
  2a:*	48 8b 10             	mov    (%rax),%rdx		<-- trapping instruction
  2d:	4c 01 e2             	add    %r12,%rdx
  30:	83 78 08 08          	cmpl   $0x8,0x8(%rax)
  34:	0f 85 50 02 00 00    	jne    0x28a
  3a:	48 8b 48 10          	mov    0x10(%rax),%rcx
  3e:	48                   	rex.W
  3f:	83                   	.byte 0x83

Code starting with the faulting instruction
===========================================
   0:	48 8b 10             	mov    (%rax),%rdx
   3:	4c 01 e2             	add    %r12,%rdx
   6:	83 78 08 08          	cmpl   $0x8,0x8(%rax)
   a:	0f 85 50 02 00 00    	jne    0x260
  10:	48 8b 48 10          	mov    0x10(%rax),%rcx
  14:	48                   	rex.W
  15:	83                   	.byte 0x83
[   16.567881][    C3] RSP: 002b:00007ffd8a59b490 EFLAGS: 00010287
[   16.567883][    C3] RAX: 00007f46b92fa000 RBX: 00007f46b92faab0 RCX: 00007f46b93250d0
[   16.567885][    C3] RDX: 00007f46b932d390 RSI: 00007f46b92fab70 RDI: 00007f46b92f95b0
[   16.567887][    C3] RBP: 00007ffd8a59b4f0 R08: 00007f46b92f9d78 R09: 0000000000000000
[   16.567888][    C3] R10: 0000000000000060 R11: 00007f46b932eeb0 R12: 00007f46b92f9000
[   16.567890][    C3] R13: 000000006fffff41 R14: 00000000effffef5 R15: 00007ffd8a59b500
| [   16.611064][    C3] RCU nest depth: 1, expected: 0
| [   16.611284][    C3] INFO: lockdep is turned off.
| [   16.611666][    C3] Preemption disabled at:
| [ 16.611668][ C3] 0x0 
[   16.612061][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.612063][    C3] Call Trace:
[   16.612065][    C3]  <IRQ>
[ 16.612067][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.612074][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.612081][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.612085][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.612088][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.612092][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.612098][ C3] ? 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) 
[ 16.612103][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.612106][ C3] ? 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) 
[ 16.612109][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.612115][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.612118][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.612124][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.612127][ C3] ? __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) 
[ 16.612133][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.612136][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.612139][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.612144][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.612148][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.612152][ C3] ? lock_release (kernel/locking/lockdep.c:5896) 
[ 16.612155][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.612158][ C3] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.612163][ C3] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 16.612166][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 16.612170][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.612173][ C3] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.612176][ C3] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.612182][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.612186][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.612190][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.612192][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.612195][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.612201][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.612204][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.612207][ C3] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 16.612210][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.612214][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.612218][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.612224][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.612227][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.612229][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.612233][    C3]  </IRQ>
[   16.612234][    C3]  <TASK>
[ 16.612236][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.612238][ C3] RIP: 0010:lock_release (kernel/locking/lockdep.c:5896) 
[ 16.612242][ C3] Code: c7 0a 89 c7 8f e8 bf d9 7a 02 b8 ff ff ff ff 65 0f c1 05 42 8e 14 05 83 f8 01 75 16 9c 58 f6 c4 02 75 2c 80 e7 02 74 01 fb 5b <5d> 41 5c e9 97 15 7d 02 90 0f 0b 90 48 c7 c7 e4 f4 c8 8f e8 87 d9
All code
========
   0:	c7                   	(bad)
   1:	0a 89 c7 8f e8 bf    	or     -0x40177039(%rcx),%cl
   7:	d9 7a 02             	fnstcw 0x2(%rdx)
   a:	b8 ff ff ff ff       	mov    $0xffffffff,%eax
   f:	65 0f c1 05 42 8e 14 	xadd   %eax,%gs:0x5148e42(%rip)        # 0x5148e59
  16:	05 
  17:	83 f8 01             	cmp    $0x1,%eax
  1a:	75 16                	jne    0x32
  1c:	9c                   	pushf
  1d:	58                   	pop    %rax
  1e:	f6 c4 02             	test   $0x2,%ah
  21:	75 2c                	jne    0x4f
  23:	80 e7 02             	and    $0x2,%bh
  26:	74 01                	je     0x29
  28:	fb                   	sti
  29:	5b                   	pop    %rbx
  2a:*	5d                   	pop    %rbp		<-- trapping instruction
  2b:	41 5c                	pop    %r12
  2d:	e9 97 15 7d 02       	jmp    0x27d15c9
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	48 c7 c7 e4 f4 c8 8f 	mov    $0xffffffff8fc8f4e4,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	87 d9                	xchg   %ebx,%ecx

Code starting with the faulting instruction
===========================================
   0:	5d                   	pop    %rbp
   1:	41 5c                	pop    %r12
   3:	e9 97 15 7d 02       	jmp    0x27d159f
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	48 c7 c7 e4 f4 c8 8f 	mov    $0xffffffff8fc8f4e4,%rdi
  13:	e8                   	.byte 0xe8
  14:	87 d9                	xchg   %ebx,%ecx
[   16.612244][    C3] RSP: 0000:ffffc90000ad6ec0 EFLAGS: 00000202
[   16.612248][    C3] RAX: 0000000000000046 RBX: 1ffff9200015ade4 RCX: ffffc90000ad6e84
[   16.612250][    C3] RDX: 0000000000000002 RSI: ffffffff8fc7890a RDI: ffffffff8f453be0
[   16.612252][    C3] RBP: ffffffff901775e0 R08: 0000000000000000 R09: ffffc90000ad7019
[   16.612253][    C3] R10: 0000000000000000 R11: ffffc90000ad7018 R12: ffffffff8c812a2e
[   16.612255][    C3] R13: ffffc90000ad6fd8 R14: ffffc90000ad0000 R15: ffffc90000ad78c8
[ 16.612257][ C3] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.612263][ C3] unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 16.612266][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.612272][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.612276][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.612279][ C3] ? kernel_text_address (kernel/extable.c:99) 
[ 16.612282][ C3] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 16.612286][ C3] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 16.612291][ C3] ? read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 16.612296][ C3] stack_trace_save (kernel/stacktrace.c:123) 
[ 16.612299][ C3] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 16.612302][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.612306][ C3] kasan_save_stack (mm/kasan/common.c:48) 
[ 16.612309][ C3] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 16.612311][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.612316][ C3] ? kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.612318][ C3] ? __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.612321][ C3] ? kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 16.612325][ C3] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.612330][ C3] ? virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 16.612333][ C3] ? flush_bg_queue (fs/fuse/dev.c:418) 
[ 16.612336][ C3] ? fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 16.612339][ C3] ? fuse_simple_background (fs/fuse/dev.c:753) 
[ 16.612342][ C3] ? fuse_send_readpages (fs/fuse/file.c:995) 
[ 16.612345][ C3] ? fuse_readahead (fs/fuse/file.c:1033) 
[ 16.612349][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.612353][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.612356][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.612360][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.612363][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.612366][ C3] ? __debug_check_no_obj_freed (lib/debugobjects.c:1110) 
[ 16.612370][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.612375][ C3] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 16.612379][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 16.612382][ C3] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3115) 
[ 16.612385][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.612388][ C3] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 16.612391][ C3] kasan_save_free_info (mm/kasan/generic.c:579) 
[ 16.612393][ C3] __kasan_slab_free (mm/kasan/common.c:271) 
[ 16.612397][ C3] kfree (mm/slub.c:4642 mm/slub.c:4841) 
[ 16.612400][ C3] ? virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.612405][ C3] virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1471) 
[ 16.612411][ C3] ? __pfx_virtio_fs_enqueue_req (fs/fuse/virtio_fs.c:1376) 
[ 16.612415][ C3] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 16.612418][ C3] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 16.612423][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.612428][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.612431][ C3] ? fuse_get_unique (fs/fuse/dev.c:317) 
[ 16.612434][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.612438][ C3] ? 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) 
[ 16.612442][ C3] virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 16.612446][ C3] ? fuse_send_one (fs/fuse/dev.c:400) 
[ 16.612450][ C3] flush_bg_queue (fs/fuse/dev.c:418) 
[ 16.612455][ C3] fuse_request_queue_background (./include/linux/spinlock.h:391 fs/fuse/dev.c:728) 
[ 16.612459][ C3] fuse_simple_background (fs/fuse/dev.c:753) 
[ 16.612463][ C3] fuse_send_readpages (fs/fuse/file.c:995) 
[ 16.612468][ C3] fuse_readahead (fs/fuse/file.c:1033) 
[ 16.612475][ C3] ? __pfx_fuse_readahead (fs/fuse/file.c:1006) 
[ 16.612482][ C3] read_pages (./include/linux/pagemap.h:1404 ./include/linux/pagemap.h:1444 mm/readahead.c:162) 
[ 16.612485][ C3] ? xa_load (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 lib/xarray.c:1621) 
[ 16.612490][ C3] ? __pfx_read_pages (mm/readahead.c:147) 
[ 16.612493][ C3] ? xa_load (lib/xarray.c:1613) 
[ 16.612499][ C3] page_cache_ra_unbounded (mm/readahead.c:265 (discriminator 2)) 
[ 16.612505][ C3] filemap_fault (mm/filemap.c:3290 mm/filemap.c:3389) 
[ 16.612511][ C3] ? __pfx_filemap_map_pages (mm/filemap.c:3692) 
[ 16.612514][ C3] ? __pfx_filemap_fault (mm/filemap.c:3362) 
[ 16.612520][ C3] ? do_fault_around (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/memory.c:5479) 
[ 16.612525][ C3] __do_fault (mm/memory.c:5098) 
[ 16.612529][ C3] do_pte_missing (mm/memory.c:5518 mm/memory.c:5652 mm/memory.c:4160) 
[ 16.612532][ C3] ? rcu_read_unlock (./include/linux/rcupdate.h:341 (discriminator 9) ./include/linux/rcupdate.h:871 (discriminator 9)) 
[ 16.612535][ C3] handle_pte_fault (mm/memory.c:5997) 
[ 16.612540][ C3] ? __pfx_handle_pte_fault (mm/memory.c:5954) 
[ 16.612543][ C3] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 16.612546][ C3] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 16.612550][ C3] __handle_mm_fault (mm/memory.c:6140) 
[ 16.612554][ C3] ? __pfx___handle_mm_fault (mm/memory.c:6049) 
[ 16.612557][ C3] ? __lock_release (kernel/locking/lockdep.c:5585) 
[ 16.612564][ C3] ? __pfx_lock_vma_under_rcu (mm/memory.c:6547) 
[ 16.612568][ C3] handle_mm_fault (mm/memory.c:6321) 
[ 16.612572][ C3] ? __pfx_handle_mm_fault (mm/memory.c:6276) 
[ 16.612575][ C3] ? 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) 
[ 16.612579][ C3] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.612583][ C3] do_user_addr_fault (arch/x86/mm/fault.c:1337) 
[ 16.612587][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.612590][ C3] 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) 
[ 16.612595][ C3] asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) 
[   16.612597][    C3] RIP: 0033:0x7f46b931ba30
[ 16.612600][ C3] Code: 01 d1 4c 01 d7 4c 01 c9 48 39 f1 48 0f 45 f7 48 8b 0d 84 40 01 00 84 d2 48 8b 79 08 4a 8d 0c 27 48 0f 45 f9 48 39 c3 76 24 90 <48> 8b 10 4c 01 e2 83 78 08 08 0f 85 50 02 00 00 48 8b 48 10 48 83
All code
========
   0:	01 d1                	add    %edx,%ecx
   2:	4c 01 d7             	add    %r10,%rdi
   5:	4c 01 c9             	add    %r9,%rcx
   8:	48 39 f1             	cmp    %rsi,%rcx
   b:	48 0f 45 f7          	cmovne %rdi,%rsi
   f:	48 8b 0d 84 40 01 00 	mov    0x14084(%rip),%rcx        # 0x1409a
  16:	84 d2                	test   %dl,%dl
  18:	48 8b 79 08          	mov    0x8(%rcx),%rdi
  1c:	4a 8d 0c 27          	lea    (%rdi,%r12,1),%rcx
  20:	48 0f 45 f9          	cmovne %rcx,%rdi
  24:	48 39 c3             	cmp    %rax,%rbx
  27:	76 24                	jbe    0x4d
  29:	90                   	nop
  2a:*	48 8b 10             	mov    (%rax),%rdx		<-- trapping instruction
  2d:	4c 01 e2             	add    %r12,%rdx
  30:	83 78 08 08          	cmpl   $0x8,0x8(%rax)
  34:	0f 85 50 02 00 00    	jne    0x28a
  3a:	48 8b 48 10          	mov    0x10(%rax),%rcx
  3e:	48                   	rex.W
  3f:	83                   	.byte 0x83

Code starting with the faulting instruction
===========================================
   0:	48 8b 10             	mov    (%rax),%rdx
   3:	4c 01 e2             	add    %r12,%rdx
   6:	83 78 08 08          	cmpl   $0x8,0x8(%rax)
   a:	0f 85 50 02 00 00    	jne    0x260
  10:	48 8b 48 10          	mov    0x10(%rax),%rcx
  14:	48                   	rex.W
  15:	83                   	.byte 0x83
[   16.612602][    C3] RSP: 002b:00007ffd8a59b490 EFLAGS: 00010287
[   16.612604][    C3] RAX: 00007f46b92fa000 RBX: 00007f46b92faab0 RCX: 00007f46b93250d0
[   16.612606][    C3] RDX: 00007f46b932d390 RSI: 00007f46b92fab70 RDI: 00007f46b92f95b0
[   16.612607][    C3] RBP: 00007ffd8a59b4f0 R08: 00007f46b92f9d78 R09: 0000000000000000
[   16.612609][    C3] R10: 0000000000000060 R11: 00007f46b932eeb0 R12: 00007f46b92f9000
[   16.612610][    C3] R13: 000000006fffff41 R14: 00000000effffef5 R15: 00007ffd8a59b500
| [   19.107895][    C0] INFO: lockdep is turned off.
| [   19.108118][    C0] Preemption disabled at:
| [ 19.108121][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
| [   19.108620][    C0] Tainted: [W]=WARN
[   19.108621][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.108624][    C0] Call Trace:
[   19.108626][    C0]  <IRQ>
[ 19.108628][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.108636][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 19.108644][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 19.108649][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 19.108653][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 19.108658][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.108664][ C0] ? 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) 
[ 19.108671][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 19.108674][ C0] ? 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) 
[ 19.108678][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 19.108684][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 19.108687][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 19.108695][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 19.108699][ C0] ? __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) 
[ 19.108706][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.108710][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 19.108713][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 19.108719][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 19.108725][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.108730][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.108733][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.108736][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.108739][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.108743][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 19.108745][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.108748][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 19.108751][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 19.108757][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 19.108763][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.108767][ C0] __put_net (net/core/net_namespace.c:732) 
[ 19.108772][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 19.108776][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.108779][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.108783][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 19.108787][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 19.108795][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.108802][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 19.108807][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 19.108813][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 19.108816][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 19.108819][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   19.108823][    C0]  </IRQ>
[   19.108824][    C0]  <TASK>
[ 19.108825][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.108828][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.108833][ C0] Code: 92 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 37 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	92                   	xchg   %eax,%edx
   1:	b5 00                	mov    $0x0,%ch
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 37 10 00 	verw   0x103783(%rip)        # 0x1037ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   19.108836][    C0] RSP: 0018:ffffffff8fe07df8 EFLAGS: 00000246
[   19.108841][    C0] RAX: 0000000000000000 RBX: 1ffffffff1fc0fc3 RCX: ffffffff8f1905d9
[   19.108843][    C0] RDX: ffffed1005ec66fb RSI: ffffffff8f453b60 RDI: ffffffff8c98d18f
[   19.108844][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ec66fa
[   19.108846][    C0] R10: ffff88802f6337d3 R11: ffffffff92af0748 R12: 0000000000000000
[   19.108848][    C0] R13: ffffffff8fe1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 19.108852][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 19.108855][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.108859][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.108861][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.108864][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.108867][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 19.108871][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 19.108877][ C0] do_idle (kernel/sched/idle.c:325) 
[ 19.108881][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.108884][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 19.108887][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 19.108891][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 19.108896][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 


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