======================================
| [   30.844800][    C0] 1 lock held by swapper/0/0:
| [ 30.845027][ C0] #0: ffffffffa57774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   30.845433][    C0]
| [   30.845433][    C0] stack backtrace:
[   30.845715][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.845718][    C0] Call Trace:
[   30.845720][    C0]  <IRQ>
[ 30.845723][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 30.845730][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 30.845736][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 30.845740][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 30.845746][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 30.845750][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 30.845756][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 30.845760][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 30.845763][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 30.845766][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 30.845770][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 30.845773][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 30.845778][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.845783][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 30.845786][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 30.845790][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 30.845794][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 30.845797][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 30.845801][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 30.845806][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 30.845813][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 30.845816][ 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) 
[ 30.845824][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.845826][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 30.845830][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 30.845833][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 30.845838][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.845842][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 30.845845][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 30.845848][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 30.845850][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 30.845854][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 30.845858][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 30.845861][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 30.845865][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 30.845872][ C0] __put_net (net/core/net_namespace.c:732) 
[ 30.845876][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 30.845880][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.845883][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.845886][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 30.845890][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 30.845894][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 30.845897][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 30.845900][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 30.845905][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 30.845911][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 30.845916][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 30.845919][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 30.845922][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   30.845926][    C0]  </IRQ>
[   30.845928][    C0]  <TASK>
[ 30.845930][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.845932][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 30.845937][ 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
[   30.845940][    C0] RSP: 0018:ffffffffa5407df8 EFLAGS: 00000246
[   30.845943][    C0] RAX: 000000000009b141 RBX: 1ffffffff4a80fc3 RCX: ffffffffa47905d9
[   30.845945][    C0] RDX: 0000000000000000 RSI: ffffffffa528f4e4 RDI: ffffffffa4a53be0
[   30.845947][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   30.845949][    C0] R10: ffff8880360337d3 R11: ffffffffa5411288 R12: 0000000000000000
[   30.845950][    C0] R13: ffffffffa541f240 R14: dffffc0000000000 R15: 0000000000014770
[ 30.845955][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 30.845959][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 30.845962][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 30.845964][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 30.845968][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 30.845971][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 30.845978][ C0] do_idle (kernel/sched/idle.c:325) 
[ 30.845982][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 30.845985][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 30.845989][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 30.845993][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 30.845998][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 30.846002][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   30.866793][    C0] RCU nest depth: 0, expected: 0
| [   30.867004][    C0] INFO: lockdep is turned off.
| [   30.867219][    C0] Preemption disabled at:
| [ 30.867221][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   30.867716][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.867719][    C0] Call Trace:
[   30.867721][    C0]  <IRQ>
[ 30.867723][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 30.867731][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 30.867740][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 30.867745][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 30.867748][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 30.867753][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.867759][ 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) 
[ 30.867766][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 30.867769][ 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) 
[ 30.867773][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 30.867779][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 30.867782][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 30.867790][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 30.867793][ 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) 
[ 30.867800][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.867804][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 30.867807][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 30.867814][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 30.867820][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.867825][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 30.867828][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 30.867831][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 30.867834][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 30.867838][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 30.867841][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 30.867843][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 30.867846][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 30.867854][ C0] __put_net (net/core/net_namespace.c:732) 
[ 30.867859][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 30.867863][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.867866][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 30.867869][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 30.867876][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 30.867879][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 30.867884][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 30.867887][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 30.867892][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 30.867897][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 30.867902][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 30.867905][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 30.867908][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   30.867912][    C0]  </IRQ>
[   30.867913][    C0]  <TASK>
[ 30.867915][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.867917][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 30.867922][ 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
[   30.867924][    C0] RSP: 0018:ffffffffa5407df8 EFLAGS: 00000246
[   30.867928][    C0] RAX: 000000000009b141 RBX: 1ffffffff4a80fc3 RCX: ffffffffa47905d9
[   30.867930][    C0] RDX: 0000000000000000 RSI: ffffffffa528f4e4 RDI: ffffffffa4a53be0
[   30.867932][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   30.867934][    C0] R10: ffff8880360337d3 R11: ffffffffa5411288 R12: 0000000000000000
[   30.867936][    C0] R13: ffffffffa541f240 R14: dffffc0000000000 R15: 0000000000014770
[ 30.867940][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 30.867945][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 30.867948][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 30.867950][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 30.867954][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 30.867958][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 30.867964][ C0] do_idle (kernel/sched/idle.c:325) 
[ 30.867967][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 30.867970][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 30.867973][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 30.867977][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 30.867981][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 30.867985][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   33.742068][    C3] INFO: lockdep is turned off.
| [   33.742373][    C3] Preemption disabled at:
| [ 33.742377][ C3] 0x0 
| [   33.742932][    C3] Tainted: [W]=WARN
[   33.742934][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.742936][    C3] Call Trace:
[   33.742938][    C3]  <IRQ>
[ 33.742941][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 33.742954][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 33.742963][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 33.742969][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 33.742972][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 33.742978][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 33.742984][ 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) 
[ 33.742991][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 33.742994][ 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) 
[ 33.742997][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 33.743003][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 33.743007][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 33.743016][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 33.743021][ 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) 
[ 33.743030][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 33.743035][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 33.743040][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 33.743048][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 33.743056][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 33.743063][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 33.743068][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 33.743073][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 33.743077][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 33.743083][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 33.743088][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 33.743092][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 33.743098][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 33.743106][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 33.743113][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 33.743121][ C3] __put_net (net/core/net_namespace.c:732) 
[ 33.743129][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 33.743136][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 33.743139][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 33.743148][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 33.743155][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 33.743165][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 33.743176][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 33.743183][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 33.743194][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 33.743199][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 33.743204][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   33.743210][    C3]  </IRQ>
[   33.743212][    C3]  <TASK>
[ 33.743215][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 33.743220][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 33.743226][ C3] 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
[   33.743231][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   33.743237][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffa47905d9
[   33.743241][    C3] RDX: ffffed1006c366fb RSI: ffffffffa4a53b60 RDI: ffffffffa1f8d18f
[   33.743244][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   33.743247][    C3] R10: ffff8880361b37d3 R11: ffff88800536cad8 R12: 0000000000000000
[   33.743250][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 33.743256][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 33.743261][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 33.743268][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 33.743273][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 33.743277][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 33.743283][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 33.743290][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 33.743299][ C3] do_idle (kernel/sched/idle.c:325) 
[ 33.743305][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 33.743311][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 33.743316][ 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