======================================
| [ 14.509110][ C1] #1: ffffc9000037fd40 ((work_completion)(&dev->power.work)){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3214) 
| [ 14.509549][ C1] #2: ffffffffa0574480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   14.509897][    C1]
| [   14.509897][    C1] stack backtrace:
[   14.510144][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.510146][    C1] Workqueue: pm pm_runtime_work
[   14.510153][    C1] Call Trace:
[   14.510155][    C1]  <IRQ>
[ 14.510158][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.510163][ C1] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 14.510169][ C1] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 14.510173][ C1] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.510178][ C1] ? save_trace (kernel/locking/lockdep.c:594) 
[ 14.510183][ C1] mark_lock (kernel/locking/lockdep.c:4754) 
[ 14.510187][ C1] mark_usage (kernel/locking/lockdep.c:4643) 
[ 14.510190][ C1] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 14.510195][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 14.510199][ C1] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.510203][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.510209][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 14.510212][ C1] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.510216][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.510219][ C1] ? simple_pin_fs (fs/libfs.c:1066) 
[ 14.510222][ C1] simple_pin_fs (fs/libfs.c:1066) 
[ 14.510226][ C1] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.510229][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 14.510234][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 14.510237][ 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:2333) 
[ 14.510253][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.510256][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 14.510259][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.510261][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 14.510265][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.510268][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.510271][ C1] ? serial_port_runtime_resume (./include/linux/serial_core.h:787 drivers/tty/serial/serial_port.c:49) 
[ 14.510276][ C1] ? __rpm_callback (drivers/base/power/runtime.c:394) 
[ 14.510278][ C1] ? rpm_callback (drivers/base/power/runtime.c:448) 
[ 14.510281][ C1] ? rpm_resume (drivers/base/power/runtime.c:923) 
[ 14.510284][ C1] ? pm_runtime_work (./include/linux/spinlock.h:401 drivers/base/power/runtime.c:992) 
[ 14.510287][ C1] ? process_one_work (kernel/workqueue.c:3238) 
[ 14.510289][ C1] ? worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 14.510294][ C1] __put_net (net/core/net_namespace.c:732) 
[ 14.510298][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 14.510301][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.510304][ C1] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.510308][ C1] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 14.510312][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 14.510315][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 14.510318][ C1] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 14.510322][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 14.510326][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 14.510330][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 14.510334][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.510336][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.510338][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   14.510342][    C1]  </IRQ>
[   14.510343][    C1]  <TASK>
[ 14.510344][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.510347][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.510351][ C1] Code: 74 24 10 e8 91 3e 86 fd 48 89 ef e8 09 91 86 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 2a 99 7a fd 65 8b 05 83 08 99 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	91                   	xchg   %eax,%ecx
   5:	3e 86 fd             	ds xchg %bh,%ch
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 91 86 fd       	call   0xfffffffffd869119
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 2a 99 7a fd       	call   0xfffffffffd7a9959		<-- trapping instruction
  2f:	65 8b 05 83 08 99 02 	mov    %gs:0x2990883(%rip),%eax        # 0x29908b9
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 2a 99 7a fd       	call   0xfffffffffd7a992f
   5:	65 8b 05 83 08 99 02 	mov    %gs:0x2990883(%rip),%eax        # 0x299088f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   14.510354][    C1] RSP: 0018:ffffc9000037fa88 EFLAGS: 00000206
[   14.510356][    C1] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[   14.510358][    C1] RDX: 0000000000000000 RSI: ffffffffa0085f31 RDI: 0000000000000001
[   14.510360][    C1] RBP: ffffffffa2f5ad20 R08: 0000000000000001 R09: 0000000000000001
[   14.510362][    C1] R10: ffffffffa0fd8197 R11: ffffffffa2f5ad38 R12: ffffffffa09fab00
[   14.510363][    C1] R13: 00000000ffffffff R14: 0000000000000246 R15: ffffffffa2f5ae60
[ 14.510370][ C1] serial_port_runtime_resume (./include/linux/serial_core.h:787 drivers/tty/serial/serial_port.c:49) 
[ 14.510373][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 14.510376][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.510380][ C1] __rpm_callback (drivers/base/power/runtime.c:394) 
[ 14.510383][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.510386][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.510390][ C1] rpm_callback (drivers/base/power/runtime.c:448) 
[ 14.510393][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.510396][ C1] rpm_resume (drivers/base/power/runtime.c:923) 
[ 14.510401][ C1] ? __pfx_rpm_resume (drivers/base/power/runtime.c:773) 
[ 14.510404][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 14.510408][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 14.510411][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 14.510414][ C1] ? pm_runtime_work (drivers/base/power/runtime.c:967) 
[ 14.510418][ C1] pm_runtime_work (./include/linux/spinlock.h:401 drivers/base/power/runtime.c:992) 
[ 14.510422][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 14.510428][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 14.510433][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 14.510437][ C1] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 14.510442][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 14.510446][ C1] kthread (kernel/kthread.c:464) 
[ 14.510451][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.510453][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 14.510456][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 14.510460][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.510463][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.510467][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 14.510470][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.510473][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   14.530522][    C1] RCU nest depth: 0, expected: 0
| [   14.530698][    C1] INFO: lockdep is turned off.
| [   14.530881][    C1] Preemption disabled at:
| [ 14.530883][ C1] 0x0 
[   14.531201][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.531202][    C1] Workqueue: pm pm_runtime_work
[   14.531208][    C1] Call Trace:
[   14.531210][    C1]  <IRQ>
[ 14.531211][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.531216][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 14.531222][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.531225][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.531228][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 14.531231][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.531236][ 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) 
[ 14.531240][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 14.531243][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.531246][ 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) 
[ 14.531250][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.531253][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 14.531257][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 14.531260][ 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:2333) 
[ 14.531264][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.531268][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 14.531270][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.531273][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 14.531276][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.531279][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.531283][ C1] ? serial_port_runtime_resume (./include/linux/serial_core.h:787 drivers/tty/serial/serial_port.c:49) 
[ 14.531287][ C1] ? __rpm_callback (drivers/base/power/runtime.c:394) 
[ 14.531290][ C1] ? rpm_callback (drivers/base/power/runtime.c:448) 
[ 14.531293][ C1] ? rpm_resume (drivers/base/power/runtime.c:923) 
[ 14.531296][ C1] ? pm_runtime_work (./include/linux/spinlock.h:401 drivers/base/power/runtime.c:992) 
[ 14.531299][ C1] ? process_one_work (kernel/workqueue.c:3238) 
[ 14.531302][ C1] ? worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 14.531307][ C1] __put_net (net/core/net_namespace.c:732) 
[ 14.531310][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 14.531313][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.531316][ C1] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 14.531320][ C1] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 14.531324][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 14.531327][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 14.531331][ C1] ? note_gp_changes (kernel/rcu/tree.c:1324 (discriminator 1)) 
[ 14.531334][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 14.531338][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 14.531341][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 14.531345][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.531348][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.531350][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   14.531353][    C1]  </IRQ>
[   14.531354][    C1]  <TASK>
[ 14.531356][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.531358][ C1] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.531362][ C1] Code: 74 24 10 e8 91 3e 86 fd 48 89 ef e8 09 91 86 fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 2a 99 7a fd 65 8b 05 83 08 99 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	91                   	xchg   %eax,%ecx
   5:	3e 86 fd             	ds xchg %bh,%ch
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 09 91 86 fd       	call   0xfffffffffd869119
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 2a 99 7a fd       	call   0xfffffffffd7a9959		<-- trapping instruction
  2f:	65 8b 05 83 08 99 02 	mov    %gs:0x2990883(%rip),%eax        # 0x29908b9
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 2a 99 7a fd       	call   0xfffffffffd7a992f
   5:	65 8b 05 83 08 99 02 	mov    %gs:0x2990883(%rip),%eax        # 0x299088f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   14.531364][    C1] RSP: 0018:ffffc9000037fa88 EFLAGS: 00000206
[   14.531367][    C1] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 0000000000000040
[   14.531369][    C1] RDX: 0000000000000000 RSI: ffffffffa0085f31 RDI: 0000000000000001
[   14.531370][    C1] RBP: ffffffffa2f5ad20 R08: 0000000000000001 R09: 0000000000000001
[   14.531372][    C1] R10: ffffffffa0fd8197 R11: ffffffffa2f5ad38 R12: ffffffffa09fab00
[   14.531374][    C1] R13: 00000000ffffffff R14: 0000000000000246 R15: ffffffffa2f5ae60
[ 14.531380][ C1] serial_port_runtime_resume (./include/linux/serial_core.h:787 drivers/tty/serial/serial_port.c:49) 
[ 14.531383][ C1] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 14.531386][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.531390][ C1] __rpm_callback (drivers/base/power/runtime.c:394) 
[ 14.531393][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.531396][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.531400][ C1] rpm_callback (drivers/base/power/runtime.c:448) 
[ 14.531403][ C1] ? __pfx_serial_port_runtime_resume (drivers/tty/serial/serial_port.c:31) 
[ 14.531406][ C1] rpm_resume (drivers/base/power/runtime.c:923) 
[ 14.531411][ C1] ? __pfx_rpm_resume (drivers/base/power/runtime.c:773) 
[ 14.531414][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 14.531417][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 14.531420][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 14.531423][ C1] ? pm_runtime_work (drivers/base/power/runtime.c:967) 
[ 14.531428][ C1] pm_runtime_work (./include/linux/spinlock.h:401 drivers/base/power/runtime.c:992) 
[ 14.531431][ C1] process_one_work (kernel/workqueue.c:3238) 
[ 14.531437][ C1] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 14.531443][ C1] ? assign_work (kernel/workqueue.c:1200) 
[ 14.531447][ C1] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 14.531452][ C1] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 14.531456][ C1] kthread (kernel/kthread.c:464) 
[ 14.531459][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.531462][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 14.531465][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 14.531469][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 14.531472][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.531475][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 14.531478][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 14.531481][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   16.177422][    C2] INFO: lockdep is turned off.
| [   16.177610][    C2] Preemption disabled at:
| [ 16.177611][ C2] 0x0 
| [   16.177962][    C2] Tainted: [W]=WARN
[   16.177963][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.177966][    C2] Call Trace:
[   16.177967][    C2]  <IRQ>
[ 16.177969][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.177978][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 16.177984][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.177988][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.177990][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 16.177994][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.178000][ 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) 
[ 16.178005][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 16.178007][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.178011][ 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) 
[ 16.178015][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.178018][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.178023][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.178026][ 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:2333) 
[ 16.178032][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.178036][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.178039][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.178043][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.178047][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.178051][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.178053][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.178056][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.178058][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.178063][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 16.178066][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.178069][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.178073][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.178077][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.178081][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.178086][ C2] __put_net (net/core/net_namespace.c:732) 
[ 16.178089][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.178093][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.178096][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.178100][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.178105][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.178109][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.178113][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 16.178117][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.178120][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.178122][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.178125][    C2]  </IRQ>
[   16.178127][    C2]  <TASK>
[ 16.178128][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.178131][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.178135][ C2] Code: b0 b8 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 a3 d0 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	b0 b8                	mov    $0xb8,%al
   2:	00 c3                	add    %al,%bl
   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 a3 d0 13 00 	verw   0x13d0a3(%rip)        # 0x13d0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   16.178137][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   16.178141][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9f555a19
[   16.178143][    C2] RDX: ffffed1006c2667b RSI: ffffffff9f850c60 RDI: ffffffff9cd84d8f
[   16.178145][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c2667a
[   16.178147][    C2] R10: ffff8880361333d3 R11: ffff888001b9cb58 R12: 0000000000000000
[   16.178148][    C2] R13: ffff888001bb2340 R14: dffffc0000000000 R15: 0000000000000000
[ 16.178152][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.178156][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.178160][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.178163][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.178165][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.178169][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.178173][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 16.178178][ C2] do_idle (kernel/sched/idle.c:325) 
[ 16.178182][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.178185][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.178189][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


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