======================================
| [   15.282402][    C0] 1 lock held by swapper/0/0:
| [ 15.282606][ C0] #0: ffffffff8cb749c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   15.282972][    C0]
| [   15.282972][    C0] stack backtrace:
[   15.283228][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.283230][    C0] Call Trace:
[   15.283232][    C0]  <IRQ>
[ 15.283233][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.283239][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 15.283244][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 15.283248][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 15.283254][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 15.283257][ C0] ? save_trace (kernel/locking/lockdep.c:594) 
[ 15.283262][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 15.283266][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 15.283270][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 15.283275][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 15.283278][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.283281][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 15.283287][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 15.283289][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.283292][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.283295][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 15.283298][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 15.283301][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.283304][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 15.283308][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.283312][ 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) 
[ 15.283317][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.283320][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.283323][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.283325][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 15.283329][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.283333][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.283336][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.283338][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.283340][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.283345][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.283348][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.283351][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.283354][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.283359][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.283363][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 15.283366][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 15.283369][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.283373][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 15.283377][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 15.283381][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.283384][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 15.283388][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.283392][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 15.283396][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.283400][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.283403][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.283405][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   15.283409][    C0]  </IRQ>
[   15.283410][    C0]  <TASK>
[ 15.283411][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.283414][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.283418][ 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
[   15.283421][    C0] RSP: 0018:ffffffff8c807df8 EFLAGS: 00000246
[   15.283424][    C0] RAX: 0000000000072cd1 RBX: 1ffffffff1900fc3 RCX: ffffffff8bb5ba19
[   15.283426][    C0] RDX: 0000000000000000 RSI: ffffffff8c687785 RDI: ffffffff8be51260
[   15.283428][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   15.283430][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   15.283432][    C0] R13: ffffffff8c81f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.283436][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.283440][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.283443][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.283445][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.283449][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.283453][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 15.283460][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.283464][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.283467][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.283471][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.283475][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 15.283479][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 15.283483][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.301006][    C0] RCU nest depth: 0, expected: 0
| [   15.301194][    C0] INFO: lockdep is turned off.
| [   15.301387][    C0] Preemption disabled at:
| [ 15.301389][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
[   15.301823][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.301824][    C0] Call Trace:
[   15.301826][    C0]  <IRQ>
[ 15.301827][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.301833][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 15.301838][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.301842][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.301845][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 15.301849][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 15.301855][ 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) 
[ 15.301859][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 15.301862][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.301865][ 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) 
[ 15.301870][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.301873][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 15.301877][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 15.301880][ 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) 
[ 15.301884][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.301888][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 15.301891][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.301894][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 15.301898][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.301901][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.301905][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.301907][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.301910][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.301914][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 15.301917][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.301920][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.301922][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.301929][ C0] __put_net (net/core/net_namespace.c:732) 
[ 15.301932][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 15.301936][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 15.301939][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 15.301943][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 15.301947][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 15.301951][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.301955][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 15.301959][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.301963][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 15.301967][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 15.301972][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.301975][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.301977][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   15.301981][    C0]  </IRQ>
[   15.301982][    C0]  <TASK>
[ 15.301983][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.301986][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 15.301990][ 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
[   15.301992][    C0] RSP: 0018:ffffffff8c807df8 EFLAGS: 00000246
[   15.301995][    C0] RAX: 0000000000072cd1 RBX: 1ffffffff1900fc3 RCX: ffffffff8bb5ba19
[   15.301997][    C0] RDX: 0000000000000000 RSI: ffffffff8c687785 RDI: ffffffff8be51260
[   15.301999][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c0667a
[   15.302001][    C0] R10: ffff8880360333d3 R11: 0000000000000000 R12: 0000000000000000
[   15.302003][    C0] R13: ffffffff8c81f240 R14: dffffc0000000000 R15: 0000000000014770
[ 15.302006][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.302011][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 15.302014][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.302016][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.302020][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.302024][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 15.302030][ C0] do_idle (kernel/sched/idle.c:325) 
[ 15.302034][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.302038][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 15.302041][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 15.302046][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 15.302050][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 15.302054][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.013997][    C0] INFO: lockdep is turned off.
| [   17.014191][    C0] Preemption disabled at:
| [ 17.014192][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [   17.014645][    C0] Tainted: [W]=WARN
[   17.014647][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.014649][    C0] Call Trace:
[   17.014650][    C0]  <IRQ>
[ 17.014652][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.014658][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 17.014664][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.014669][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.014672][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 17.014677][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.014683][ 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) 
[ 17.014688][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 17.014690][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.014695][ 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) 
[ 17.014699][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.014702][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 17.014707][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 17.014710][ 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) 
[ 17.014716][ C0] ? rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 17.014720][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 17.014723][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.014727][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 17.014731][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.014735][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 17.014738][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 17.014741][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.014743][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.014748][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 17.014751][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.014754][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.014757][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.014763][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.014767][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.014772][ C0] __put_net (net/core/net_namespace.c:732) 
[ 17.014775][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 17.014779][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 17.014782][ C0] rcu_do_batch (./include/linux/rcupdate.h:341 kernel/rcu/tree.c:2570) 
[ 17.014787][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 17.014792][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 17.014797][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 17.014801][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 17.014805][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.014808][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.014810][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   17.014814][    C0]  </IRQ>
[   17.014815][    C0]  <TASK>
[ 17.014816][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.014819][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 17.014823][ 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
[   17.014826][    C0] RSP: 0018:ffffffff8c807df8 EFLAGS: 00000246
[   17.014829][    C0] RAX: 0000000000000000 RBX: 1ffffffff1900fc3 RCX: ffffffff8bb5ba19
[   17.014831][    C0] RDX: ffffed1006c0667b RSI: ffffffff8be511e0 RDI: ffffffff8938633f
[   17.014833][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c0667a
[   17.014835][    C0] R10: ffff8880360333d3 R11: ffff888001bdcb58 R12: 0000000000000000
[   17.014837][    C0] R13: ffffffff8c81f240 R14: dffffc0000000000 R15: 0000000000014770
[ 17.014841][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.014844][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.014849][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 17.014851][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.014853][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.014857][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.014861][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 17.014868][ C0] do_idle (kernel/sched/idle.c:325) 
[ 17.014872][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.014876][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 17.014879][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 17.014883][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 17.014888][ 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