======================================
| [   15.115397][    C0] 1 lock held by swapper/0/0:
| [ 15.115606][ C0] #0: ffffffff9ef774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.115973][    C0]
| [   15.115973][    C0] stack backtrace:
[   15.116236][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.116241][    C0] Call Trace:
[   15.116243][    C0]  <IRQ>
[ 15.116244][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.116253][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.116257][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.116261][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.116265][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.116270][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.116276][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.116280][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.116283][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.116286][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.116290][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.116293][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.116298][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.116304][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.116306][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.116310][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.116314][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.116318][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 15.116322][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.116325][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.116333][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.116336][ 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) 
[ 15.116344][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.116347][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.116350][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.116353][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.116358][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.116362][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.116365][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.116368][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.116370][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.116374][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.116376][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.116378][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.116381][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.116388][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.116391][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.116395][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.116397][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.116401][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.116405][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.116408][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.116412][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.116415][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.116420][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.116424][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.116430][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.116433][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.116435][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.116439][    C0]  </IRQ>
[   15.116440][    C0]  <TASK>
[ 15.116442][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.116444][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.116449][ 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
[   15.116451][    C0] RSP: 0018:ffffffff9ec07df8 EFLAGS: 00000242
[   15.116454][    C0] RAX: 000000000006fe4f RBX: 1ffffffff3d80fc3 RCX: ffffffff9df905d9
[   15.116456][    C0] RDX: 0000000000000000 RSI: ffffffff9ea8f4e4 RDI: ffffffff9e253be0
[   15.116458][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.116460][    C0] R10: ffff8880360337d3 R11: ffffffff9ec11288 R12: 0000000000000000
[   15.116462][    C0] R13: ffffffff9ec1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.116466][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.116471][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.116473][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.116476][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.116479][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.116483][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.116488][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.116492][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.116495][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.116499][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.116502][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.116507][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.116510][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.134472][    C0] RCU nest depth: 0, expected: 0
| [   15.134689][    C0] INFO: lockdep is turned off.
| [   15.134885][    C0] Preemption disabled at:
| [ 15.134887][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   15.135346][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.135348][    C0] Call Trace:
[   15.135350][    C0]  <IRQ>
[ 15.135351][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.135357][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 15.135363][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.135367][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.135370][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.135374][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.135378][ 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) 
[ 15.135388][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.135390][ 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) 
[ 15.135394][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.135399][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.135402][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.135407][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.135411][ 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) 
[ 15.135415][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.135419][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.135422][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.135426][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.135431][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.135435][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.135438][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.135441][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.135444][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.135447][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.135449][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.135452][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.135455][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.135462][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.135465][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.135469][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.135472][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.135475][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.135481][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.135484][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.135489][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.135492][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.135497][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.135501][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.135506][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.135509][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.135512][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.135516][    C0]  </IRQ>
[   15.135517][    C0]  <TASK>
[ 15.135519][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.135522][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.135526][ 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
[   15.135528][    C0] RSP: 0018:ffffffff9ec07df8 EFLAGS: 00000242
[   15.135531][    C0] RAX: 000000000006fe4f RBX: 1ffffffff3d80fc3 RCX: ffffffff9df905d9
[   15.135533][    C0] RDX: 0000000000000000 RSI: ffffffff9ea8f4e4 RDI: ffffffff9e253be0
[   15.135535][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c066fa
[   15.135537][    C0] R10: ffff8880360337d3 R11: ffffffff9ec11288 R12: 0000000000000000
[   15.135538][    C0] R13: ffffffff9ec1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.135542][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.135547][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.135550][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.135552][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.135555][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.135559][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.135564][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.135568][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.135570][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.135574][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.135578][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 15.135582][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 15.135586][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.944325][    C3] INFO: lockdep is turned off.
| [   16.944508][    C3] Preemption disabled at:
| [ 16.944510][ C3] 0x0 
| [   16.944839][    C3] Tainted: [W]=WARN
[   16.944840][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.944842][    C3] Call Trace:
[   16.944845][    C3]  <IRQ>
[ 16.944847][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.944856][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.944864][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.944869][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.944872][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.944876][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.944881][ 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) 
[ 16.944888][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.944891][ 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) 
[ 16.944894][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.944899][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.944902][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.944909][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.944913][ 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) 
[ 16.944919][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.944922][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.944925][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.944931][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.944936][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.944940][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.944944][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.944946][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.944949][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.944952][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.944954][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.944957][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.944960][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.944966][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.944974][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.944979][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.944982][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.944986][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.944989][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.944993][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.944997][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.945003][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.945009][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.945013][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.945019][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.945022][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.945024][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.945028][    C3]  </IRQ>
[   16.945029][    C3]  <TASK>
[ 16.945031][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.945033][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.945038][ 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
[   16.945041][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   16.945045][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9df905d9
[   16.945047][    C3] RDX: ffffed1006c366fb RSI: ffffffff9e253b60 RDI: ffffffff9b78d18f
[   16.945049][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   16.945050][    C3] R10: ffff8880361b37d3 R11: ffff88800a33cad8 R12: 0000000000000000
[   16.945052][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.945056][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.945059][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.945063][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.945065][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.945068][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.945071][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.945075][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.945080][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.945083][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.945086][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.945089][ 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