======================================
| [   20.303340][    C2] 1 lock held by swapper/2/0:
| [ 20.303551][ C2] #0: ffffffffa91774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   20.303924][    C2]
| [   20.303924][    C2] stack backtrace:
[   20.304189][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.304192][    C2] Call Trace:
[   20.304194][    C2]  <IRQ>
[ 20.304197][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.304205][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 20.304210][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 20.304215][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 20.304220][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 20.304228][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 20.304232][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 20.304235][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 20.304239][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.304243][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 20.304246][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 20.304251][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.304255][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 20.304258][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 20.304263][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 20.304266][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 20.304269][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 20.304273][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 20.304277][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 20.304284][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 20.304288][ 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) 
[ 20.304295][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.304298][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 20.304302][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.304304][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 20.304309][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.304313][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.304316][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.304319][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.304321][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.304325][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 20.304327][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.304330][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.304334][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.304343][ C2] __put_net (net/core/net_namespace.c:732) 
[ 20.304348][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 20.304352][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.304354][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.304358][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.304362][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 20.304365][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.304369][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.304371][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.304376][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 20.304382][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 20.304387][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.304391][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.304393][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   20.304397][    C2]  </IRQ>
[   20.304398][    C2]  <TASK>
[ 20.304400][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.304403][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.304408][ 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
[   20.304410][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000242
[   20.304414][    C2] RAX: 0000000000043aef RBX: 1ffff92000028fc1 RCX: ffffffffa81905d9
[   20.304416][    C2] RDX: 0000000000000000 RSI: ffffffffa8c8f4e4 RDI: ffffffffa8453be0
[   20.304418][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   20.304420][    C2] R10: ffff8880361337d3 R11: ffffffffa8e11288 R12: 0000000000000000
[   20.304421][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 20.304425][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.304430][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.304432][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.304435][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.304438][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.304442][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 20.304446][ C2] do_idle (kernel/sched/idle.c:325) 
[ 20.304450][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.304453][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.304456][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 20.304460][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   20.322947][    C2] RCU nest depth: 0, expected: 0
| [   20.323266][    C2] INFO: lockdep is turned off.
| [   20.323476][    C2] Preemption disabled at:
| [ 20.323478][ C2] 0x0 
[   20.323857][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.323859][    C2] Call Trace:
[   20.323861][    C2]  <IRQ>
[ 20.323863][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.323874][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 20.323882][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 20.323887][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 20.323890][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 20.323897][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.323903][ 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) 
[ 20.323911][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 20.323913][ 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) 
[ 20.323917][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 20.323923][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 20.323926][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 20.323934][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 20.323938][ 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) 
[ 20.323944][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.323948][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 20.323952][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.323957][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 20.323964][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.323968][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.323971][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.323974][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.323977][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.323981][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 20.323983][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.323986][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.323990][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.323998][ C2] __put_net (net/core/net_namespace.c:732) 
[ 20.324002][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 20.324007][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.324009][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 20.324013][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.324019][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 20.324022][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.324027][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 20.324030][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 20.324035][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 20.324040][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 20.324046][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.324049][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.324051][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   20.324055][    C2]  </IRQ>
[   20.324056][    C2]  <TASK>
[ 20.324058][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.324061][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 20.324066][ 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
[   20.324069][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000242
[   20.324074][    C2] RAX: 0000000000043aef RBX: 1ffff92000028fc1 RCX: ffffffffa81905d9
[   20.324077][    C2] RDX: 0000000000000000 RSI: ffffffffa8c8f4e4 RDI: ffffffffa8453be0
[   20.324079][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   20.324081][    C2] R10: ffff8880361337d3 R11: ffffffffa8e11288 R12: 0000000000000000
[   20.324083][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 20.324089][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.324095][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 20.324099][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.324103][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.324107][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.324112][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 20.324119][ C2] do_idle (kernel/sched/idle.c:325) 
[ 20.324125][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.324128][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.324131][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 20.324136][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   26.213642][    C3] INFO: lockdep is turned off.
| [   26.213830][    C3] Preemption disabled at:
| [ 26.213832][ C3] 0x0 
| [   26.214192][    C3] Tainted: [W]=WARN
[   26.214193][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.214195][    C3] Call Trace:
[   26.214197][    C3]  <IRQ>
[ 26.214199][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 26.214212][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 26.214223][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 26.214229][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 26.214231][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 26.214237][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.214245][ 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) 
[ 26.214252][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 26.214257][ 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) 
[ 26.214262][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 26.214272][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 26.214277][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 26.214287][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 26.214290][ 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) 
[ 26.214299][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 26.214303][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 26.214306][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 26.214313][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 26.214320][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 26.214325][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 26.214328][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 26.214331][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 26.214334][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 26.214338][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 26.214341][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 26.214343][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 26.214348][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 26.214356][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 26.214360][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.214364][ C3] __put_net (net/core/net_namespace.c:732) 
[ 26.214369][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 26.214373][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 26.214376][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 26.214380][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 26.214384][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 26.214390][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 26.214396][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 26.214402][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 26.214408][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 26.214411][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 26.214413][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   26.214417][    C3]  </IRQ>
[   26.214418][    C3]  <TASK>
[ 26.214420][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 26.214423][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 26.214427][ 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
[   26.214431][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   26.214435][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffa81905d9
[   26.214437][    C3] RDX: ffffed1006c366fb RSI: ffffffffa8453b60 RDI: ffffffffa598d18f
[   26.214439][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   26.214441][    C3] R10: ffff8880361b37d3 R11: ffff888001ef8558 R12: 0000000000000000
[   26.214443][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 26.214447][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 26.214450][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 26.214454][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 26.214456][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 26.214459][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 26.214462][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 26.214466][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 26.214471][ C3] do_idle (kernel/sched/idle.c:325) 
[ 26.214474][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 26.214477][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 26.214480][ 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