======================================
| [   16.157910][    C0] 1 lock held by swapper/0/0:
| [ 16.158117][ C0] #0: ffffffffb55749c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   16.158489][    C0]
| [   16.158489][    C0] stack backtrace:
[   16.158748][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.158750][    C0] Call Trace:
[   16.158752][    C0]  <IRQ>
[ 16.158754][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.158760][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 16.158765][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 16.158769][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 16.158774][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 16.158778][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 16.158783][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 16.158787][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 16.158791][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 16.158796][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 16.158799][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.158803][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.158809][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 16.158811][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.158814][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.158817][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 16.158819][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 16.158822][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.158825][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.158830][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.158833][ 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:2366) 
[ 16.158838][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 16.158842][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.158845][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.158847][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.158851][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.158855][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.158858][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.158860][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.158863][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.158867][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.158870][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.158874][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.158876][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.158882][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.158886][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 16.158889][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.158893][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 16.158896][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.158900][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.158904][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.158908][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.158911][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.158916][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.158920][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.158924][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.158927][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.158929][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.158932][    C0]  </IRQ>
[   16.158933][    C0]  <TASK>
[ 16.158935][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.158938][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.158942][ C0] Code: 60 b8 00 e9 c3 57 02 00 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 c3 75 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	60                   	(bad)
   1:	b8 00 e9 c3 57       	mov    $0x57c3e900,%eax
   6:	02 00                	add    (%rax),%al
   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 c3 75 13 00 	verw   0x1375c3(%rip)        # 0x1375eb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   16.158945][    C0] RSP: 0018:ffffffffb5207df8 EFLAGS: 00000242
[   16.158948][    C0] RAX: 000000000007993d RBX: 1ffffffff6a40fc3 RCX: ffffffffb455ba19
[   16.158950][    C0] RDX: 0000000000000000 RSI: ffffffffb5087785 RDI: ffffffffb4851260
[   16.158952][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   16.158953][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   16.158955][    C0] R13: ffffffffb521f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.158959][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.158964][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.158966][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.158969][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.158973][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.158977][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 16.158983][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.158987][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.158991][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.158994][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.158998][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 16.159003][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 16.159007][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.179017][    C0] RCU nest depth: 0, expected: 0
| [   16.179217][    C0] INFO: lockdep is turned off.
| [   16.179409][    C0] Preemption disabled at:
| [ 16.179411][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
[   16.179857][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.179859][    C0] Call Trace:
[   16.179860][    C0]  <IRQ>
[ 16.179862][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.179867][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 16.179873][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.179877][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.179880][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 16.179884][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 16.179890][ 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) 
[ 16.179894][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 16.179897][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.179901][ 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) 
[ 16.179906][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.179908][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 16.179913][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.179916][ 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:2366) 
[ 16.179921][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 16.179925][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.179928][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.179932][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 16.179936][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.179939][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.179943][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.179945][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.179947][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.179953][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.179955][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.179959][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.179961][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.179969][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.179972][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 16.179976][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 16.179979][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 16.179983][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 16.179988][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 16.179992][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.179996][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 16.179999][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.180004][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 16.180008][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.180013][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.180015][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.180018][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   16.180021][    C0]  </IRQ>
[   16.180022][    C0]  <TASK>
[ 16.180024][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.180027][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 16.180030][ C0] Code: 60 b8 00 e9 c3 57 02 00 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 c3 75 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	60                   	(bad)
   1:	b8 00 e9 c3 57       	mov    $0x57c3e900,%eax
   6:	02 00                	add    (%rax),%al
   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 c3 75 13 00 	verw   0x1375c3(%rip)        # 0x1375eb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   16.180033][    C0] RSP: 0018:ffffffffb5207df8 EFLAGS: 00000242
[   16.180036][    C0] RAX: 000000000007993d RBX: 1ffffffff6a40fc3 RCX: ffffffffb455ba19
[   16.180038][    C0] RDX: 0000000000000000 RSI: ffffffffb5087785 RDI: ffffffffb4851260
[   16.180040][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   16.180042][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   16.180044][    C0] R13: ffffffffb521f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.180048][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.180052][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 16.180055][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.180057][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.180061][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.180065][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 16.180072][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.180076][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.180079][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.180083][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.180087][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 16.180091][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 16.180095][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.395862][    C1] INFO: lockdep is turned off.
| [   18.396031][    C1] Preemption disabled at:
| [ 18.396033][ C1] 0x0 
| [   18.396351][    C1] Tainted: [W]=WARN
[   18.396352][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.396354][    C1] Call Trace:
[   18.396356][    C1]  <IRQ>
[ 18.396358][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.396366][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 18.396373][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.396378][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.396381][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 18.396386][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 18.396392][ 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) 
[ 18.396396][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 18.396400][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.396404][ 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) 
[ 18.396408][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.396411][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 18.396417][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 18.396420][ 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:2366) 
[ 18.396425][ C1] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 18.396429][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 18.396432][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.396436][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 18.396441][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.396445][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 18.396448][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 18.396450][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.396452][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.396457][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 18.396460][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.396463][ C1] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.396468][ C1] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.396472][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.396476][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 18.396481][ C1] __put_net (net/core/net_namespace.c:732) 
[ 18.396484][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 18.396488][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 18.396491][ C1] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 18.396496][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 18.396500][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.396505][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.396511][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 18.396515][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 18.396519][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.396522][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.396524][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   18.396528][    C1]  </IRQ>
[   18.396529][    C1]  <TASK>
[ 18.396530][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.396533][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 18.396537][ C1] Code: 60 b8 00 e9 c3 57 02 00 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 c3 75 13 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	60                   	(bad)
   1:	b8 00 e9 c3 57       	mov    $0x57c3e900,%eax
   6:	02 00                	add    (%rax),%al
   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 c3 75 13 00 	verw   0x1375c3(%rip)        # 0x1375eb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   18.396540][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[   18.396544][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffffb455ba19
[   18.396546][    C1] RDX: ffffed1006c1667b RSI: ffffffffb48511e0 RDI: ffffffffb1d8633f
[   18.396548][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c1667a
[   18.396549][    C1] R10: ffff8880360b33d3 R11: ffff888008930558 R12: 0000000000000000
[   18.396551][    C1] R13: ffff888001bf0040 R14: dffffc0000000000 R15: 0000000000000000
[ 18.396555][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.396558][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.396563][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 18.396565][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.396567][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.396571][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.396575][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 18.396581][ C1] do_idle (kernel/sched/idle.c:325) 
[ 18.396585][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.396588][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.396592][ 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