======================================
| [  594.381863][    C1]  #2: ff11000005d205d8 (&fsvq->lock){+.+.}-{3:3}, at: virtio_fs_requests_done_work (./include/linux/spinlock.h:342 fs/fuse/virtio_fs.c:839)
| [  594.382079][    C1]  #3: ffffffff93777c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:300 (discriminator 2) kernel/rcu/tree.c:2611 (discriminator 2))
| [  594.382276][    C1]
| [  594.382276][    C1] stack backtrace:
[  594.382423][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  594.382425][    C1] Workqueue: events virtio_fs_requests_done_work
[  594.382429][    C1] Call Trace:
[  594.382430][    C1]  <IRQ>
[  594.382432][    C1]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  594.382437][    C1]  print_usage_bug.part.0.cold (kernel/locking/lockdep.c:4042)
[  594.382440][    C1]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  594.382443][    C1]  mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4056 kernel/locking/lockdep.c:4267)
[  594.382444][    C1]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  594.382447][    C1]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  594.382449][    C1]  ? save_trace (kernel/locking/lockdep.c:589)
[  594.382450][    C1]  ? virtio_fs_setup_vqs (fs/fuse/virtio_fs.c:987)
[  594.382453][    C1]  mark_lock (kernel/locking/lockdep.c:4753)
[  594.382454][    C1]  mark_usage (kernel/locking/lockdep.c:4642)
[  594.382456][    C1]  __lock_acquire (kernel/locking/lockdep.c:5191)
[  594.382457][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  594.382459][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  594.382461][    C1]  lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  594.382463][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  594.382465][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  594.382467][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  594.382469][    C1]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:158 (discriminator 1) kernel/locking/spinlock.c:158 (discriminator 1))
[  594.382470][    C1]  ? tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  594.382472][    C1] tcf_mirred_release (./include/linux/spinlock.h:342 net/sched/act_mirred.c:78) act_mirred
[  594.382473][    C1]  tcf_action_rcu_free (net/sched/act_api.c:367 net/sched/act_api.c:378)
[  594.382475][    C1]  ? rcu_do_batch (./include/linux/rcupdate.h:310 (discriminator 2) kernel/rcu/tree.c:2619 (discriminator 2))
[  594.382477][    C1]  rcu_do_batch (kernel/rcu/tree.c:2617)
[  594.382479][    C1]  ? trace_rcu_batch_end (./include/trace/events/rcu.h:714 (discriminator 19))
[  594.382481][    C1]  ? mark_held_locks (kernel/locking/lockdep.c:4325)
[  594.382483][    C1]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[  594.382484][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  594.382486][    C1]  rcu_core (kernel/rcu/tree.c:2869)
[  594.382488][    C1]  handle_softirqs (kernel/softirq.c:622)
[  594.382489][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  594.382492][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[  594.382493][    C1]  ? _local_bh_enable (kernel/softirq.c:405 (discriminator 1))
[  594.382495][    C1]  __irq_exit_rcu (kernel/softirq.c:656 kernel/softirq.c:496 kernel/softirq.c:735)
[  594.382497][    C1]  irq_exit_rcu (kernel/softirq.c:752)
[  594.382498][    C1]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1061 (discriminator 37) arch/x86/kernel/apic/apic.c:1061 (discriminator 37))
[  594.382500][    C1]  </IRQ>
[  594.382500][    C1]  <TASK>
[  594.382501][    C1]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  594.382503][    C1] RIP: 0010:rcu_read_lock_any_held (kernel/rcu/update.c:381)
[  594.382505][    C1] Code: 24 18 e8 df cc f2 00 48 8b 44 24 20 48 8b 4c 24 18 e9 14 fd ff ff 48 8b 7c 24 10 e8 46 66 79 00 e9 f1 fc ff ff 90 f3 0f 1e fa <53> bb 01 00 00 00 e8 01 ae 2b 02 85 c0 75 04 89 d8 5b c3 89 c3 e8
All code
========
   0:	24 18                	and    $0x18,%al
   2:	e8 df cc f2 00       	call   0xf2cce6
   7:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
   c:	48 8b 4c 24 18       	mov    0x18(%rsp),%rcx
  11:	e9 14 fd ff ff       	jmp    0xfffffffffffffd2a
  16:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
  1b:	e8 46 66 79 00       	call   0x796666
  20:	e9 f1 fc ff ff       	jmp    0xfffffffffffffd16
  25:	90                   	nop
  26:	f3 0f 1e fa          	endbr64
  2a:*	53                   	push   %rbx		<-- trapping instruction
  2b:	bb 01 00 00 00       	mov    $0x1,%ebx
  30:	e8 01 ae 2b 02       	call   0x22bae36
  35:	85 c0                	test   %eax,%eax
  37:	75 04                	jne    0x3d
  39:	89 d8                	mov    %ebx,%eax
  3b:	5b                   	pop    %rbx
  3c:	c3                   	ret
  3d:	89 c3                	mov    %eax,%ebx
  3f:	e8                   	.byte 0xe8

Code starting with the faulting instruction
===========================================
   0:	53                   	push   %rbx
   1:	bb 01 00 00 00       	mov    $0x1,%ebx
   6:	e8 01 ae 2b 02       	call   0x22bae0c
   b:	85 c0                	test   %eax,%eax
   d:	75 04                	jne    0x13
   f:	89 d8                	mov    %ebx,%eax
  11:	5b                   	pop    %rbx
  12:	c3                   	ret
  13:	89 c3                	mov    %eax,%ebx
  15:	e8                   	.byte 0xe8
[  594.382507][    C1] RSP: 0018:ffa00000001b7778 EFLAGS: 00000202
[  594.382509][    C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000875b906b
[  594.382510][    C1] RDX: 000000006dd02a5a RSI: 0000000000000003 RDI: 00000000940442aa
[  594.382511][    C1] RBP: 000000000000000c R08: 0000000049c546ce R09: ffffffff940ac44c
[  594.382512][    C1] R10: 0000000000000001 R11: 0000000000000002 R12: ffa00000001b77e0
[  594.382513][    C1] R13: 000000000000000c R14: 00000000e330f7c6 R15: ff11000034177c60
[  594.382515][    C1]  stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  594.382517][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2))
[  594.382519][    C1]  ? detach_buf_split_in_order (drivers/virtio/virtio_ring.c:850 drivers/virtio/virtio_ring.c:881)
[  594.382522][    C1]  kasan_save_stack (mm/kasan/common.c:58)
[  594.382526][    C1]  ? kasan_save_stack (mm/kasan/common.c:57)
[  594.382528][    C1]  ? kasan_record_aux_stack (mm/kasan/generic.c:556)
[  594.382530][    C1]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[  594.382531][    C1]  ? kfree (./include/linux/kmemleak.h:50 mm/slub.c:2614 mm/slub.c:6251 mm/slub.c:6566)
[  594.382534][    C1]  ? detach_buf_split_in_order (drivers/virtio/virtio_ring.c:850 drivers/virtio/virtio_ring.c:881)
[  594.382535][    C1]  ? virtqueue_get_buf_ctx_split (drivers/virtio/virtio_ring.c:891 drivers/virtio/virtio_ring.c:958)
[  594.382537][    C1]  ? virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:843 (discriminator 1))
[  594.382538][    C1]  ? process_one_work (kernel/workqueue.c:3314)
[  594.382540][    C1]  ? worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  594.382541][    C1]  ? kthread (kernel/kthread.c:436)
[  594.382543][    C1]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[  594.382546][    C1]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[  594.382551][    C1]  kasan_record_aux_stack (mm/kasan/generic.c:556)
[  594.382552][    C1]  ? __remove_object (mm/kmemleak.c:609)
[  594.382554][    C1]  __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131)
[  594.382555][    C1]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  594.382557][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:178 (discriminator 6) kernel/locking/spinlock.c:198 (discriminator 6))
[  594.382558][    C1]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[  594.382560][    C1]  kfree (./include/linux/kmemleak.h:50 mm/slub.c:2614 mm/slub.c:6251 mm/slub.c:6566)
[  594.382562][    C1]  detach_buf_split_in_order (drivers/virtio/virtio_ring.c:850 drivers/virtio/virtio_ring.c:881)
[  594.382564][    C1]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[  594.382566][    C1]  virtqueue_get_buf_ctx_split (drivers/virtio/virtio_ring.c:891 drivers/virtio/virtio_ring.c:958)
[  594.382569][    C1]  virtio_fs_requests_done_work (fs/fuse/virtio_fs.c:843 (discriminator 1))
[  594.382571][    C1]  ? virtio_fs_complete_req_work (fs/fuse/virtio_fs.c:823)
[  594.382572][    C1]  ? process_one_work (kernel/workqueue.c:3290 (discriminator 2))
[  594.382574][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[  594.382575][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[  594.382577][    C1]  process_one_work (kernel/workqueue.c:3314)
[  594.382580][    C1]  ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[  594.382582][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[  594.382584][    C1]  worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[  594.382587][    C1]  ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[  594.382589][    C1]  kthread (kernel/kthread.c:436)
[  594.382590][    C1]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  594.382593][    C1]  ? kthread_affine_node (kernel/kthread.c:378)
[  594.382595][    C1]  ret_from_fork (arch/x86/kernel/process.c:158)
[  594.382596][    C1]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[  594.382598][    C1]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[  594.382601][    C1]  ? kthread_affine_node (kernel/kthread.c:378)


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