======================================
| [   15.689324][    C0] 1 lock held by swapper/0/0:
| [ 15.689533][ C0] #0: ffffffffb3f749c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   15.689908][    C0]
| [   15.689908][    C0] stack backtrace:
[   15.690170][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.690173][    C0] Call Trace:
[   15.690175][    C0]  <IRQ>
[ 15.690176][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.690183][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 15.690188][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 15.690192][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.690198][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 15.690201][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 15.690206][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 15.690210][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 15.690214][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 15.690219][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 15.690222][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.690225][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 15.690230][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 15.690232][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.690236][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.690239][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.690242][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 15.690245][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.690248][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 15.690253][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.690256][ 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) 
[ 15.690262][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.690265][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.690268][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.690271][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 15.690275][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.690279][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.690282][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.690284][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.690286][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.690290][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.690293][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.690296][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.690299][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.690304][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.690308][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 15.690312][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 15.690315][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.690319][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 15.690323][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 15.690327][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.690331][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 15.690335][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.690339][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 15.690343][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.690347][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.690350][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.690352][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   15.690356][    C0]  </IRQ>
[   15.690357][    C0]  <TASK>
[ 15.690358][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.690361][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.690365][ 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
[   15.690368][    C0] RSP: 0018:ffffffffb3c07df8 EFLAGS: 00000242
[   15.690371][    C0] RAX: 000000000006d9cb RBX: 1ffffffff6780fc3 RCX: ffffffffb2f5ba19
[   15.690373][    C0] RDX: 0000000000000000 RSI: ffffffffb3a87785 RDI: ffffffffb3251260
[   15.690375][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   15.690377][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   15.690378][    C0] R13: ffffffffb3c1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.690382][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.690387][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.690389][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.690392][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.690395][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.690400][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 15.690406][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.690410][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.690414][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.690417][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.690421][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 15.690426][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 15.690430][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.709307][    C0] RCU nest depth: 0, expected: 0
| [   15.709499][    C0] INFO: lockdep is turned off.
| [   15.709693][    C0] Preemption disabled at:
| [ 15.709695][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
[   15.710135][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.710136][    C0] Call Trace:
[   15.710138][    C0]  <IRQ>
[ 15.710139][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.710145][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 15.710151][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.710155][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.710157][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 15.710162][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 15.710167][ 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) 
[ 15.710172][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 15.710175][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.710179][ 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) 
[ 15.710183][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.710186][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 15.710191][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.710194][ 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) 
[ 15.710199][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.710202][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.710205][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.710209][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 15.710213][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.710216][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.710220][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.710222][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.710225][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.710229][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.710232][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.710235][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.710238][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.710245][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.710249][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 15.710252][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 15.710255][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.710259][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 15.710264][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 15.710268][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.710272][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 15.710276][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.710280][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 15.710284][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.710289][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.710291][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.710294][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   15.710297][    C0]  </IRQ>
[   15.710298][    C0]  <TASK>
[ 15.710300][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.710303][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.710307][ 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
[   15.710310][    C0] RSP: 0018:ffffffffb3c07df8 EFLAGS: 00000242
[   15.710313][    C0] RAX: 000000000006d9cb RBX: 1ffffffff6780fc3 RCX: ffffffffb2f5ba19
[   15.710315][    C0] RDX: 0000000000000000 RSI: ffffffffb3a87785 RDI: ffffffffb3251260
[   15.710317][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   15.710319][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   15.710321][    C0] R13: ffffffffb3c1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.710325][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.710329][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.710331][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.710334][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.710338][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.710342][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 15.710349][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.710353][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.710357][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.710360][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.710364][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 15.710369][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 15.710372][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.839918][    C0] INFO: lockdep is turned off.
| [   17.840109][    C0] Preemption disabled at:
| [ 17.840111][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [   17.840558][    C0] Tainted: [W]=WARN
[   17.840559][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.840561][    C0] Call Trace:
[   17.840563][    C0]  <IRQ>
[ 17.840565][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.840571][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 17.840577][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.840581][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.840584][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 17.840590][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.840596][ 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) 
[ 17.840601][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 17.840604][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.840608][ 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) 
[ 17.840613][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.840616][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 17.840621][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 17.840625][ 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) 
[ 17.840630][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 17.840634][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 17.840637][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.840641][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 17.840646][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.840650][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 17.840653][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 17.840655][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.840658][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.840662][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 17.840665][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.840668][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.840671][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.840677][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.840681][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.840686][ C0] __put_net (net/core/net_namespace.c:732) 
[ 17.840689][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 17.840693][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 17.840696][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 17.840701][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 17.840706][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.840711][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 17.840715][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 17.840720][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.840723][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.840725][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   17.840729][    C0]  </IRQ>
[   17.840730][    C0]  <TASK>
[ 17.840731][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.840734][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 17.840738][ 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
[   17.840741][    C0] RSP: 0018:ffffffffb3c07df8 EFLAGS: 00000246
[   17.840745][    C0] RAX: 0000000000000000 RBX: 1ffffffff6780fc3 RCX: ffffffffb2f5ba19
[   17.840747][    C0] RDX: ffffed1006c0667b RSI: ffffffffb32511e0 RDI: ffffffffb078633f
[   17.840749][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c0667a
[   17.840751][    C0] R10: ffff8880360333d3 R11: ffff888001bdcb58 R12: 0000000000000000
[   17.840753][    C0] R13: ffffffffb3c1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 17.840757][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.840760][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.840764][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 17.840767][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.840769][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.840773][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.840777][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 17.840783][ C0] do_idle (kernel/sched/idle.c:325) 
[ 17.840787][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.840791][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.840795][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.840799][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 17.840803][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal