======================================
| [   15.812339][    C0] 1 lock held by swapper/0/0:
| [ 15.812550][ C0] #0: ffffffff929774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.812928][    C0]
| [   15.812928][    C0] stack backtrace:
[   15.813198][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.813203][    C0] Call Trace:
[   15.813207][    C0]  <IRQ>
[ 15.813209][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.813220][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.813225][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.813228][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.813241][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.813245][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.813254][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.813258][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.813261][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.813264][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.813268][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.813271][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.813276][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.813281][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.813284][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.813288][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.813292][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.813296][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 15.813301][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.813304][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.813320][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.813323][ 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) 
[ 15.813339][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.813342][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.813345][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.813348][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.813354][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.813362][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.813365][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.813368][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.813371][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.813375][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.813378][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.813380][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.813383][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.813389][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.813394][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.813398][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.813400][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.813403][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.813408][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.813411][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.813415][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.813417][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.813422][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.813427][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.813432][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.813435][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.813438][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.813442][    C0]  </IRQ>
[   15.813443][    C0]  <TASK>
[ 15.813444][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.813447][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.813451][ 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
[   15.813454][    C0] RSP: 0018:ffffffff92607df8 EFLAGS: 00000246
[   15.813462][    C0] RAX: 00000000000786f9 RBX: 1ffffffff24c0fc3 RCX: ffffffff919905d9
[   15.813465][    C0] RDX: 0000000000000000 RSI: ffffffff9248f4e4 RDI: ffffffff91c53be0
[   15.813466][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.813468][    C0] R10: ffff8880360337d3 R11: ffffffff92611288 R12: 0000000000000000
[   15.813469][    C0] R13: ffffffff9261f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.813473][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.813478][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.813481][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.813485][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.813488][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.813492][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.813500][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.813503][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.813507][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.813510][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.813514][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.813520][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.813524][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.832324][    C0] RCU nest depth: 0, expected: 0
| [   15.832514][    C0] INFO: lockdep is turned off.
| [   15.832707][    C0] Preemption disabled at:
| [ 15.832709][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   15.833401][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.833403][    C0] Call Trace:
[   15.833404][    C0]  <IRQ>
[ 15.833406][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.833411][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 15.833422][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.833426][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.833429][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.833433][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.833438][ 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) 
[ 15.833446][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.833449][ 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) 
[ 15.833453][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.833458][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.833461][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.833467][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.833470][ 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) 
[ 15.833475][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.833479][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.833482][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.833487][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.833492][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.833496][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.833499][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.833501][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.833504][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.833507][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.833510][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.833513][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.833516][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.833523][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.833527][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.833531][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.833533][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.833537][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.833542][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.833545][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.833550][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.833552][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.833557][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.833561][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.833567][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.833570][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.833572][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.833576][    C0]  </IRQ>
[   15.833577][    C0]  <TASK>
[ 15.833579][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.833581][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.833585][ 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
[   15.833588][    C0] RSP: 0018:ffffffff92607df8 EFLAGS: 00000246
[   15.833591][    C0] RAX: 00000000000786f9 RBX: 1ffffffff24c0fc3 RCX: ffffffff919905d9
[   15.833593][    C0] RDX: 0000000000000000 RSI: ffffffff9248f4e4 RDI: ffffffff91c53be0
[   15.833594][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.833596][    C0] R10: ffff8880360337d3 R11: ffffffff92611288 R12: 0000000000000000
[   15.833598][    C0] R13: ffffffff9261f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.833602][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.833608][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.833611][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.833613][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.833616][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.833620][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.833625][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.833628][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.833631][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.833634][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.833638][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.833642][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.833646][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.814083][    C3] INFO: lockdep is turned off.
| [   17.814297][    C3] Preemption disabled at:
| [ 17.814299][ C3] 0x0 
| [   17.814680][    C3] Tainted: [W]=WARN
[   17.814682][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.814685][    C3] Call Trace:
[   17.814687][    C3]  <IRQ>
[ 17.814690][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.814703][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 17.814713][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.814719][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.814722][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.814729][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.814737][ 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) 
[ 17.814744][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.814747][ 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) 
[ 17.814750][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.814757][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.814760][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.814769][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.814774][ 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) 
[ 17.814783][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.814787][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.814790][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.814797][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.814804][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.814810][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.814813][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.814816][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.814819][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.814824][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.814826][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.814828][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.814833][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.814841][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.814870][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.814875][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.814880][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.814884][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.814887][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.814891][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.814895][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.814911][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.814918][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.814924][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.814929][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.814932][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.814936][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.814940][    C3]  </IRQ>
[   17.814942][    C3]  <TASK>
[ 17.814944][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.814947][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.814952][ 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
[   17.814955][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   17.814960][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff919905d9
[   17.814962][    C3] RDX: ffffed1006c366fb RSI: ffffffff91c53b60 RDI: ffffffff8f18d18f
[   17.814964][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   17.814966][    C3] R10: ffff8880361b37d3 R11: ffff888002732818 R12: 0000000000000000
[   17.814967][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.814971][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.814974][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.814978][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.814981][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.814983][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.814986][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.814990][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.814995][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.814998][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.815001][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.815003][ 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