======================================
| [   15.069641][    C2] 1 lock held by swapper/2/0:
| [ 15.069839][ C2] #0: ffffffffa07774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.070174][    C2]
| [   15.070174][    C2] stack backtrace:
[   15.070411][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.070413][    C2] Call Trace:
[   15.070415][    C2]  <IRQ>
[ 15.070417][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.070423][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.070428][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.070433][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.070437][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.070444][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.070447][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.070450][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.070453][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.070458][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.070461][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.070466][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.070470][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.070473][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.070477][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.070480][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.070484][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 15.070488][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.070491][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.070497][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.070501][ C2] ? __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) 
[ 15.070506][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.070509][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.070512][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.070515][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.070519][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.070523][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.070526][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.070529][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.070531][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.070535][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.070537][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.070539][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.070543][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.070550][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.070554][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.070558][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.070560][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.070563][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.070568][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.070571][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.070575][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.070577][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.070582][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.070586][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.070592][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.070595][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.070597][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.070601][    C2]  </IRQ>
[   15.070602][    C2]  <TASK>
[ 15.070604][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.070606][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.070610][ C2] 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
[   15.070613][    C2] RSP: 0000:ffffc90000147de8 EFLAGS: 00000246
[   15.070617][    C2] RAX: 000000000004cd69 RBX: 1ffff92000028fc1 RCX: ffffffff9f7905d9
[   15.070619][    C2] RDX: 0000000000000000 RSI: ffffffffa028f4e4 RDI: ffffffff9fa53be0
[   15.070620][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.070622][    C2] R10: ffff8880361337d3 R11: ffffffffa0411288 R12: 0000000000000000
[   15.070624][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.070628][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.070633][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.070635][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.070638][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.070641][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.070645][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.070649][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.070653][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.070656][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.070658][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.070663][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.086895][    C2] RCU nest depth: 0, expected: 0
| [   15.087079][    C2] INFO: lockdep is turned off.
| [   15.087270][    C2] Preemption disabled at:
| [ 15.087272][ C2] 0x0 
[   15.087717][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.087719][    C2] Call Trace:
[   15.087721][    C2]  <IRQ>
[ 15.087723][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.087729][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 15.087736][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.087740][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.087743][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.087747][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.087752][ C2] ? 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) 
[ 15.087757][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.087760][ C2] ? 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) 
[ 15.087763][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.087769][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.087772][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.087777][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.087780][ C2] ? __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) 
[ 15.087785][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.087788][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.087791][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.087795][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.087800][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.087803][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.087807][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.087809][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.087812][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.087815][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.087817][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.087820][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.087823][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.087830][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.087833][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.087837][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.087840][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.087843][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.087849][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.087852][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.087856][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.087859][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.087864][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.087868][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.087873][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.087876][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.087879][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.087883][    C2]  </IRQ>
[   15.087884][    C2]  <TASK>
[ 15.087885][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.087888][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.087892][ C2] 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
[   15.087894][    C2] RSP: 0000:ffffc90000147de8 EFLAGS: 00000246
[   15.087897][    C2] RAX: 000000000004cd69 RBX: 1ffff92000028fc1 RCX: ffffffff9f7905d9
[   15.087899][    C2] RDX: 0000000000000000 RSI: ffffffffa028f4e4 RDI: ffffffff9fa53be0
[   15.087901][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   15.087903][    C2] R10: ffff8880361337d3 R11: ffffffffa0411288 R12: 0000000000000000
[   15.087904][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.087908][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.087913][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.087915][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.087918][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.087921][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.087925][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.087929][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.087932][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.087935][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.087938][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.087943][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.728072][    C3] INFO: lockdep is turned off.
| [   16.728280][    C3] Preemption disabled at:
| [ 16.728282][ C3] 0x0 
| [   16.728660][    C3] Tainted: [W]=WARN
[   16.728661][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.728663][    C3] Call Trace:
[   16.728665][    C3]  <IRQ>
[ 16.728667][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.728679][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.728686][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.728691][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.728694][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.728698][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.728703][ 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) 
[ 16.728709][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.728712][ 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) 
[ 16.728715][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.728721][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.728724][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.728730][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.728734][ 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) 
[ 16.728739][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.728742][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.728746][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.728751][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.728755][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.728759][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.728762][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.728765][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.728768][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.728772][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.728774][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.728776][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.728780][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.728786][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 16.728790][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.728794][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.728798][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.728802][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.728804][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.728809][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.728812][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 16.728818][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.728824][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.728829][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.728834][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.728837][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.728840][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.728844][    C3]  </IRQ>
[   16.728845][    C3]  <TASK>
[ 16.728847][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.728849][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.728854][ 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
[   16.728857][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   16.728860][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9f7905d9
[   16.728863][    C3] RDX: ffffed1006c366fb RSI: ffffffff9fa53b60 RDI: ffffffff9cf8d18f
[   16.728865][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   16.728866][    C3] R10: ffff8880361b37d3 R11: ffff888001ef8558 R12: 0000000000000000
[   16.728868][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.728872][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.728875][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.728879][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.728881][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.728884][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.728887][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.728891][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.728895][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.728898][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.728901][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.728904][ 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