======================================
| [   14.348264][    C2] 1 lock held by swapper/2/0:
| [ 14.348450][ C2] #0: ffffffffad1774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   14.348779][    C2]
| [   14.348779][    C2] stack backtrace:
[   14.349014][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.349016][    C2] Call Trace:
[   14.349018][    C2]  <IRQ>
[ 14.349020][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.349026][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 14.349030][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 14.349034][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 14.349039][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 14.349045][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 14.349048][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 14.349051][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 14.349055][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 14.349059][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 14.349062][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.349066][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.349070][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 14.349072][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.349077][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 14.349080][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 14.349084][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 14.349088][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 14.349091][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.349097][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.349100][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.349106][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.349109][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.349112][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.349115][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.349120][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.349123][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.349127][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.349129][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.349132][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.349135][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 14.349137][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.349139][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.349143][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.349150][ C2] __put_net (net/core/net_namespace.c:732) 
[ 14.349153][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.349157][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.349160][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.349163][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.349167][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.349170][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.349174][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.349177][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.349182][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.349186][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 14.349192][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.349195][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.349197][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.349201][    C2]  </IRQ>
[   14.349202][    C2]  <TASK>
[ 14.349204][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.349207][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.349211][ C2] 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
[   14.349213][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   14.349216][    C2] RAX: 00000000000467eb RBX: 1ffff92000028fc1 RCX: ffffffffac1905d9
[   14.349218][    C2] RDX: 0000000000000000 RSI: ffffffffacc8f4e4 RDI: ffffffffac453be0
[   14.349220][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   14.349222][    C2] R10: ffff8880361337d3 R11: fffffffface11288 R12: 0000000000000000
[   14.349224][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 14.349228][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.349232][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.349235][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.349238][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.349241][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.349245][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.349249][ C2] do_idle (kernel/sched/idle.c:325) 
[ 14.349252][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.349255][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.349258][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.349262][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   14.364896][    C2] RCU nest depth: 0, expected: 0
| [   14.365190][    C2] INFO: lockdep is turned off.
| [   14.365492][    C2] Preemption disabled at:
| [ 14.365493][ C2] 0x0 
[   14.365828][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.365830][    C2] Call Trace:
[   14.365832][    C2]  <IRQ>
[ 14.365834][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 14.365841][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 14.365848][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 14.365853][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 14.365856][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 14.365860][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 14.365864][ 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) 
[ 14.365870][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 14.365873][ 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) 
[ 14.365876][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 14.365881][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 14.365884][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 14.365889][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 14.365892][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.365897][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.365900][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 14.365903][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 14.365907][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 14.365912][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.365915][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.365918][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.365921][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.365924][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.365927][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 14.365929][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.365932][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.365935][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 14.365942][ C2] __put_net (net/core/net_namespace.c:732) 
[ 14.365944][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 14.365949][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.365951][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 14.365954][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 14.365960][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 14.365963][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 14.365967][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 14.365970][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 14.365975][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 14.365979][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 14.365984][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 14.365987][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 14.365990][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   14.365993][    C2]  </IRQ>
[   14.365994][    C2]  <TASK>
[ 14.365996][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 14.365999][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 14.366002][ C2] 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
[   14.366005][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   14.366008][    C2] RAX: 00000000000467eb RBX: 1ffff92000028fc1 RCX: ffffffffac1905d9
[   14.366010][    C2] RDX: 0000000000000000 RSI: ffffffffacc8f4e4 RDI: ffffffffac453be0
[   14.366012][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   14.366013][    C2] R10: ffff8880361337d3 R11: fffffffface11288 R12: 0000000000000000
[   14.366015][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 14.366019][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 14.366023][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 14.366026][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 14.366028][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 14.366031][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 14.366035][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 14.366039][ C2] do_idle (kernel/sched/idle.c:325) 
[ 14.366043][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 14.366045][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 14.366048][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 14.366053][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.934828][    C0] INFO: lockdep is turned off.
| [   15.935027][    C0] Preemption disabled at:
| [ 15.935029][ C0] handle_softirqs (kernel/softirq.c:553) 
| [   15.935447][    C0] Tainted: [W]=WARN
[   15.935449][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.935451][    C0] Call Trace:
[   15.935453][    C0]  <IRQ>
[ 15.935455][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.935462][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 15.935469][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.935473][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.935476][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.935480][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.935485][ 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) 
[ 15.935491][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.935494][ 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) 
[ 15.935497][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.935503][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.935506][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.935512][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.935515][ 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) 
[ 15.935521][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.935525][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.935528][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.935530][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.935536][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.935539][ C0] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:406 arch/x86/kernel/unwind_orc.c:585) 
[ 15.935543][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.935548][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 15.935551][ C0] ? set_track_prepare (mm/slub.c:936) 
[ 15.935556][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 15.935558][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 15.935562][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 15.935567][ C0] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 15.935571][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 15.935575][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.935580][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.935583][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.935587][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.935590][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.935594][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.935598][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.935601][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 15.935608][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.935613][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.935618][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.935621][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.935624][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.935627][    C0]  </IRQ>
[   15.935629][    C0]  <TASK>
[ 15.935630][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.935633][ C0] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:406 arch/x86/kernel/unwind_orc.c:585) 
[ 15.935636][ C0] Code: ff ff 4d 8d 5d 40 84 c0 0f 84 24 f9 ff ff 4c 89 ff e8 49 e5 ff ff 4c 89 e1 48 89 c2 48 c1 e9 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 01 00 0f 85 d3 11 00 00 49 8d 45 28 49 89 55 58 49 8d 75 30
All code
========
   0:	ff                   	(bad)
   1:	ff 4d 8d             	decl   -0x73(%rbp)
   4:	5d                   	pop    %rbp
   5:	40 84 c0             	rex test %al,%al
   8:	0f 84 24 f9 ff ff    	je     0xfffffffffffff932
   e:	4c 89 ff             	mov    %r15,%rdi
  11:	e8 49 e5 ff ff       	call   0xffffffffffffe55f
  16:	4c 89 e1             	mov    %r12,%rcx
  19:	48 89 c2             	mov    %rax,%rdx
  1c:	48 c1 e9 03          	shr    $0x3,%rcx
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df 
  2a:*	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1)		<-- trapping instruction
  2e:	0f 85 d3 11 00 00    	jne    0x1207
  34:	49 8d 45 28          	lea    0x28(%r13),%rax
  38:	49 89 55 58          	mov    %rdx,0x58(%r13)
  3c:	49 8d 75 30          	lea    0x30(%r13),%rsi

Code starting with the faulting instruction
===========================================
   0:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1)
   4:	0f 85 d3 11 00 00    	jne    0x11dd
   a:	49 8d 45 28          	lea    0x28(%r13),%rax
   e:	49 89 55 58          	mov    %rdx,0x58(%r13)
  12:	49 8d 75 30          	lea    0x30(%r13),%rsi
[   15.935639][    C0] RSP: 0018:ffffc90000a37940 EFLAGS: 00000a06
[   15.935642][    C0] RAX: dffffc0000000000 RBX: 1ffff92000146f31 RCX: 1ffff92000146f53
[   15.935644][    C0] RDX: ffffffffac189fc1 RSI: 0000000000000001 RDI: ffffc90000a37f28
[   15.935646][    C0] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc90000a37a81
[   15.935648][    C0] R10: ffffffffa9812687 R11: ffffc90000a37a80 R12: ffffc90000a37a98
[   15.935650][    C0] R13: ffffc90000a37a40 R14: ffffffffadf4c5e6 R15: ffffc90000a37f28
[ 15.935653][ C0] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 15.935657][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.935661][ C0] ? x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 15.935668][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 15.935670][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 15.935674][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.935678][ C0] ? x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 15.935681][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 15.935685][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 15.935688][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 15.935694][ C0] ? x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 15.935698][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 15.935701][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 15.935706][ C0] set_track_prepare (mm/slub.c:936) 
[ 15.935709][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 15.935712][ C0] ? fuse_request_alloc (fs/fuse/dev.c:142) 
[ 15.935714][ C0] ? __fuse_simple_request (fs/fuse/dev.c:654) 
[ 15.935718][ C0] ? fuse_file_put (fs/fuse/file.c:98 fs/fuse/file.c:115 fs/fuse/file.c:102) 
[ 15.935721][ C0] ? fuse_release (fs/fuse/file.c:383) 
[ 15.935724][ C0] ? __fput (fs/file_table.c:465) 
[ 15.935728][ C0] ? task_work_run (kernel/task_work.c:229 (discriminator 1)) 
[ 15.935730][ C0] ? do_exit (kernel/exit.c:960) 
[ 15.935735][ C0] ? do_group_exit (kernel/exit.c:1089) 
[ 15.935738][ C0] ? __x64_sys_exit_group (kernel/exit.c:1117) 
[ 15.935741][ C0] ? x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 15.935745][ C0] __alloc_object (mm/kmemleak.c:697) 
[ 15.935749][ C0] __create_object (mm/kmemleak.c:770) 
[ 15.935753][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 15.935758][ C0] fuse_request_alloc (fs/fuse/dev.c:142) 
[ 15.935761][ C0] __fuse_simple_request (fs/fuse/dev.c:654) 
[ 15.935766][ C0] fuse_file_put (fs/fuse/file.c:98 fs/fuse/file.c:115 fs/fuse/file.c:102) 
[ 15.935769][ C0] fuse_release (fs/fuse/file.c:383) 
[ 15.935774][ C0] __fput (fs/file_table.c:465) 
[ 15.935779][ C0] task_work_run (kernel/task_work.c:229 (discriminator 1)) 
[ 15.935782][ C0] ? __pfx_task_work_run (kernel/task_work.c:195) 
[ 15.935785][ 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) 
[ 15.935790][ C0] do_exit (kernel/exit.c:960) 
[ 15.935795][ C0] do_group_exit (kernel/exit.c:1089) 
[ 15.935799][ C0] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 15.935802][ C0] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 15.935805][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.935809][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.935811][    C0] RIP: 0033:0x7fe766e09abd
[ 15.935814][ C0] Code: Unable to access opcode bytes at 0x7fe766e09a93.

Code starting with the faulting instruction
===========================================
[   15.935816][    C0] RSP: 002b:00007ffe671c8958 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   15.935819][    C0] RAX: ffffffffffffffda RBX: 00007fe766ee69c0 RCX: 00007fe766e09abd
[   15.935821][    C0] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   15.935823][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000020
[   15.935824][    C0] R10: 00007ffe671c8800 R11: 0000000000000246 R12: 00007fe766ee69c0


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
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit