======================================
| [   15.309381][    C0] 1 lock held by swapper/0/0:
| [ 15.309624][ C0] #0: ffffffffb35774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.310056][    C0]
| [   15.310056][    C0] stack backtrace:
[   15.310372][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.310374][    C0] Call Trace:
[   15.310376][    C0]  <IRQ>
[ 15.310377][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.310384][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.310389][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.310392][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.310397][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.310401][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.310406][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.310410][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.310413][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.310416][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.310420][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.310423][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.310428][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.310432][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.310435][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.310439][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.310443][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.310446][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 15.310450][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.310454][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.310460][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.310463][ 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) 
[ 15.310469][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.310471][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.310475][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.310478][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.310483][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.310487][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.310490][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.310493][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.310495][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.310499][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.310501][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.310504][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.310506][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.310513][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.310516][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.310520][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.310523][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.310526][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.310530][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.310533][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.310537][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.310540][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.310544][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.310548][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.310553][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.310556][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.310559][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.310563][    C0]  </IRQ>
[   15.310564][    C0]  <TASK>
[ 15.310565][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.310568][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.310572][ 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
[   15.310575][    C0] RSP: 0018:ffffffffb3207df8 EFLAGS: 00000246
[   15.310578][    C0] RAX: 000000000006bd2b RBX: 1ffffffff6640fc3 RCX: ffffffffb25905d9
[   15.310580][    C0] RDX: 0000000000000000 RSI: ffffffffb308f4e4 RDI: ffffffffb2853be0
[   15.310582][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.310583][    C0] R10: ffff8880360337d3 R11: ffffffffb3211288 R12: 0000000000000000
[   15.310585][    C0] R13: ffffffffb321f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.310589][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.310594][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.310596][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.310599][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.310602][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.310606][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.310612][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.310615][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.310618][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.310622][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.310626][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.310631][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.310634][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.331862][    C0] RCU nest depth: 0, expected: 0
| [   15.332090][    C0] INFO: lockdep is turned off.
| [   15.332326][    C0] Preemption disabled at:
| [ 15.332328][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   15.332864][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.332866][    C0] Call Trace:
[   15.332868][    C0]  <IRQ>
[ 15.332869][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.332876][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 15.332883][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.332887][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.332890][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.332894][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.332899][ 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) 
[ 15.332905][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.332908][ 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) 
[ 15.332911][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.332916][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.332919][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.332925][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.332928][ 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) 
[ 15.332934][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.332937][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.332941][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.332946][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.332950][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.332954][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.332957][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.332960][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.332963][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.332966][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.332968][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.332971][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.332974][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.332981][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.332985][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.332989][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.332991][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.332995][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.333001][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.333004][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.333009][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.333012][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.333016][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.333021][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.333026][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.333029][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.333032][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.333035][    C0]  </IRQ>
[   15.333037][    C0]  <TASK>
[ 15.333038][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.333041][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.333045][ 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
[   15.333048][    C0] RSP: 0018:ffffffffb3207df8 EFLAGS: 00000246
[   15.333051][    C0] RAX: 000000000006bd2b RBX: 1ffffffff6640fc3 RCX: ffffffffb25905d9
[   15.333053][    C0] RDX: 0000000000000000 RSI: ffffffffb308f4e4 RDI: ffffffffb2853be0
[   15.333055][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.333057][    C0] R10: ffff8880360337d3 R11: ffffffffb3211288 R12: 0000000000000000
[   15.333058][    C0] R13: ffffffffb321f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.333062][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.333067][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.333070][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.333072][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.333075][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.333079][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.333084][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.333088][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.333091][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.333094][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.333098][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.333102][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.333106][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.087154][    C3] INFO: lockdep is turned off.
| [   17.087332][    C3] Preemption disabled at:
| [ 17.087335][ C3] 0x0 
| [   17.087649][    C3] Tainted: [W]=WARN
[   17.087650][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.087653][    C3] Call Trace:
[   17.087654][    C3]  <IRQ>
[ 17.087656][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.087664][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 17.087672][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.087676][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.087679][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.087683][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.087689][ 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) 
[ 17.087694][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.087697][ 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) 
[ 17.087701][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.087706][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.087710][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.087715][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.087719][ 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) 
[ 17.087724][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.087727][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.087731][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.087735][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.087740][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.087744][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.087747][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.087750][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.087752][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.087756][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.087758][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.087761][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.087764][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.087770][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.087774][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.087778][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.087782][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.087786][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.087788][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.087793][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.087796][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.087802][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.087808][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.087812][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.087817][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.087820][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.087823][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.087827][    C3]  </IRQ>
[   17.087828][    C3]  <TASK>
[ 17.087830][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.087832][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.087837][ 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
[   17.087839][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   17.087843][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffb25905d9
[   17.087845][    C3] RDX: ffffed1006c366fb RSI: ffffffffb2853b60 RDI: ffffffffafd8d18f
[   17.087847][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   17.087849][    C3] R10: ffff8880361b37d3 R11: ffff888001ef8558 R12: 0000000000000000
[   17.087850][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.087854][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.087858][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.087862][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.087865][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.087867][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.087870][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.087874][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.087878][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.087882][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.087884][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.087887][ 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