======================================
| [   15.687650][    C0] 1 lock held by swapper/0/0:
| [ 15.687877][ C0] #0: ffffffffbb1774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.688281][    C0]
| [   15.688281][    C0] stack backtrace:
[   15.688564][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.688566][    C0] Call Trace:
[   15.688568][    C0]  <IRQ>
[ 15.688570][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.688578][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.688583][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.688587][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.688593][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.688597][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.688606][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.688609][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.688612][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.688616][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.688620][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.688623][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.688627][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.688632][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.688635][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.688639][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.688643][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.688646][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 15.688650][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.688653][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.688661][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.688665][ 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) 
[ 15.688673][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.688676][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.688679][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.688682][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.688688][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.688692][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.688695][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.688698][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.688700][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.688704][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.688706][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.688709][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.688711][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.688717][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.688722][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.688726][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.688728][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.688732][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.688736][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.688739][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.688743][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.688745][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.688750][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.688755][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.688760][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.688763][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.688766][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.688770][    C0]  </IRQ>
[   15.688771][    C0]  <TASK>
[ 15.688772][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.688775][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.688780][ 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
[   15.688783][    C0] RSP: 0018:ffffffffbae07df8 EFLAGS: 00000246
[   15.688786][    C0] RAX: 000000000006dcff RBX: 1ffffffff75c0fc3 RCX: ffffffffba1905d9
[   15.688788][    C0] RDX: 0000000000000000 RSI: ffffffffbac8f4e4 RDI: ffffffffba453be0
[   15.688790][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ec66fa
[   15.688792][    C0] R10: ffff88802f6337d3 R11: ffffffffbae11288 R12: 0000000000000000
[   15.688793][    C0] R13: ffffffffbae1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.688797][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.688802][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.688804][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.688807][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.688810][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.688814][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.688819][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.688823][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.688826][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.688829][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.688833][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.688839][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.688842][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.708725][    C0] RCU nest depth: 0, expected: 0
| [   15.708939][    C0] INFO: lockdep is turned off.
| [   15.709149][    C0] Preemption disabled at:
| [ 15.709151][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   15.709630][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.709632][    C0] Call Trace:
[   15.709633][    C0]  <IRQ>
[ 15.709635][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.709640][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 15.709649][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.709652][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.709655][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.709659][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.709664][ 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) 
[ 15.709670][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.709673][ 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) 
[ 15.709676][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.709681][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.709684][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.709689][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.709693][ 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) 
[ 15.709697][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.709700][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.709703][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.709707][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.709711][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.709715][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.709718][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.709721][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.709723][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.709726][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.709728][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.709731][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.709734][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.709740][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.709743][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.709747][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.709750][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.709753][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.709759][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.709762][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.709766][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.709769][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.709774][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.709778][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.709783][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.709786][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.709789][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.709793][    C0]  </IRQ>
[   15.709794][    C0]  <TASK>
[ 15.709795][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.709798][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.709802][ 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
[   15.709805][    C0] RSP: 0018:ffffffffbae07df8 EFLAGS: 00000246
[   15.709807][    C0] RAX: 000000000006dcff RBX: 1ffffffff75c0fc3 RCX: ffffffffba1905d9
[   15.709809][    C0] RDX: 0000000000000000 RSI: ffffffffbac8f4e4 RDI: ffffffffba453be0
[   15.709811][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ec66fa
[   15.709813][    C0] R10: ffff88802f6337d3 R11: ffffffffbae11288 R12: 0000000000000000
[   15.709814][    C0] R13: ffffffffbae1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.709818][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.709823][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.709825][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.709828][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.709831][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.709835][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.709840][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.709845][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.709848][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.709852][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.709856][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.709860][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.709864][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.466160][    C1] INFO: lockdep is turned off.
| [   17.466372][    C1] Preemption disabled at:
| [ 17.466374][ C1] 0x0 
| [   17.466690][    C1] Tainted: [W]=WARN
[   17.466691][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.466694][    C1] Call Trace:
[   17.466696][    C1]  <IRQ>
[ 17.466699][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.466709][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 17.466719][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.466725][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.466728][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.466733][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.466740][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 17.466748][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.466751][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 17.466754][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.466761][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.466764][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.466772][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.466776][ C1] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.466783][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.466787][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.466790][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.466796][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.466803][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.466808][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.466811][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.466814][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.466817][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.466822][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 17.466824][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.466827][ C1] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.466831][ C1] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.466839][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.466847][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.466852][ C1] __put_net (net/core/net_namespace.c:732) 
[ 17.466856][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.466860][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.466863][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.466867][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.466871][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.466879][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.466886][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.466891][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 17.466897][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.466900][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.466903][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.466907][    C1]  </IRQ>
[   17.466908][    C1]  <TASK>
[ 17.466910][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.466913][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.466918][ C1] 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
[   17.466921][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[   17.466925][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffba1905d9
[   17.466928][    C1] RDX: ffffed1005ed66fb RSI: ffffffffba453b60 RDI: ffffffffb798d18f
[   17.466930][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ed66fa
[   17.466931][    C1] R10: ffff88802f6b37d3 R11: ffff888009774ad8 R12: 0000000000000000
[   17.466933][    C1] R13: ffff888001bf0040 R14: dffffc0000000000 R15: 0000000000000000
[ 17.466937][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.466941][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.466945][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.466947][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.466950][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.466953][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.466957][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.466961][ C1] do_idle (kernel/sched/idle.c:325) 
[ 17.466965][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.466968][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.466970][ C1] ? __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