======================================
| [   16.363112][    C0] 1 lock held by swapper/0/0:
| [ 16.363313][ C0] #0: ffffffffaf574480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   16.363694][    C0]
| [   16.363694][    C0] stack backtrace:
[   16.363939][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.363941][    C0] Call Trace:
[   16.363943][    C0]  <IRQ>
[ 16.363945][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.363951][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 16.363957][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 16.363960][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 16.363966][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 16.363970][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 16.363974][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 16.363978][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 16.363982][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 16.363987][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 16.363991][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.363996][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.364001][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.364004][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.364008][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.364012][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.364015][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 16.364019][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.364022][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.364027][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.364030][ 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:2333) 
[ 16.364035][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.364038][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.364041][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.364044][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.364048][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.364051][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.364054][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.364057][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.364059][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.364064][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.364067][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.364070][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.364072][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.364078][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.364081][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.364085][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.364088][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.364092][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.364095][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.364099][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.364102][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.364106][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.364110][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.364114][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.364118][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.364120][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.364123][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.364126][    C0]  </IRQ>
[   16.364127][    C0]  <TASK>
[ 16.364129][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.364131][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.364135][ C0] 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
[   16.364138][    C0] RSP: 0018:ffffffffaf207df8 EFLAGS: 00000246
[   16.364141][    C0] RAX: 000000000006bdbb RBX: 1ffffffff5e40fc3 RCX: ffffffffae555a19
[   16.364144][    C0] RDX: 0000000000000000 RSI: ffffffffaf085f31 RDI: ffffffffae850ce0
[   16.364145][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   16.364147][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   16.364149][    C0] R13: ffffffffaf21f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.364153][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.364158][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.364161][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.364163][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.364167][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.364171][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 16.364177][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.364181][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.364184][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.364188][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.364191][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 16.364196][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 16.364199][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.381253][    C0] RCU nest depth: 0, expected: 0
| [   16.381445][    C0] INFO: lockdep is turned off.
| [   16.381753][    C0] Preemption disabled at:
| [ 16.381755][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
[   16.382181][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.382183][    C0] Call Trace:
[   16.382185][    C0]  <IRQ>
[ 16.382186][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.382192][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 16.382197][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.382201][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.382203][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 16.382207][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.382228][ 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) 
[ 16.382232][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 16.382235][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.382239][ 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) 
[ 16.382243][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.382246][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.382251][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.382254][ 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:2333) 
[ 16.382259][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.382263][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.382266][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.382269][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.382273][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.382277][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.382280][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.382282][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.382285][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.382289][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.382292][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.382295][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.382297][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.382304][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.382308][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 16.382312][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.382315][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.382318][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.382323][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.382327][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.382331][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.382335][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.382339][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.382342][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.382347][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.382350][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.382352][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.382355][    C0]  </IRQ>
[   16.382356][    C0]  <TASK>
[ 16.382358][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.382360][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.382364][ C0] 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
[   16.382367][    C0] RSP: 0018:ffffffffaf207df8 EFLAGS: 00000246
[   16.382370][    C0] RAX: 000000000006bdbb RBX: 1ffffffff5e40fc3 RCX: ffffffffae555a19
[   16.382372][    C0] RDX: 0000000000000000 RSI: ffffffffaf085f31 RDI: ffffffffae850ce0
[   16.382374][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   16.382375][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   16.382377][    C0] R13: ffffffffaf21f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.382381][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.382386][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.382389][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.382391][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.382395][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.382399][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 16.382405][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.382409][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.382412][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.382416][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.382419][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 16.382424][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 16.382427][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.810380][    C3] INFO: lockdep is turned off.
| [   18.810549][    C3] Preemption disabled at:
| [ 18.810551][ C3] 0x0 
| [   18.810850][    C3] Tainted: [W]=WARN
[   18.810852][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.810854][    C3] Call Trace:
[   18.810855][    C3]  <IRQ>
[ 18.810857][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.810866][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 18.810873][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.810877][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.810880][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 18.810884][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 18.810890][ 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) 
[ 18.810895][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 18.810897][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.810903][ 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) 
[ 18.810907][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.810910][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 18.810915][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 18.810918][ 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:2333) 
[ 18.810923][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 18.810927][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 18.810930][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.810934][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 18.810939][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.810943][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 18.810946][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 18.810949][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.810951][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.810956][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 18.810959][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.810962][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.810967][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.810971][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.810975][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 18.810980][ C3] __put_net (net/core/net_namespace.c:732) 
[ 18.810983][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 18.810987][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 18.810990][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 18.810994][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 18.810999][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 18.811003][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 18.811007][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 18.811012][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.811014][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.811016][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   18.811020][    C3]  </IRQ>
[   18.811021][    C3]  <TASK>
[ 18.811022][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.811025][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 18.811029][ C3] 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
[   18.811032][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   18.811035][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffae555a19
[   18.811038][    C3] RDX: ffffed1006c3667b RSI: ffffffffae850c60 RDI: ffffffffabd84d8f
[   18.811039][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c3667a
[   18.811041][    C3] R10: ffff8880361b33d3 R11: ffff888001b9cb58 R12: 0000000000000000
[   18.811043][    C3] R13: ffff888001bb4640 R14: dffffc0000000000 R15: 0000000000000000
[ 18.811046][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.811051][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.811055][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 18.811057][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.811060][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.811063][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.811068][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 18.811073][ C3] do_idle (kernel/sched/idle.c:325) 
[ 18.811077][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.811081][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.811084][ C3] ? __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
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal