======================================
| [   15.303050][    C2] 1 lock held by swapper/2/0:
| [ 15.303329][ C2] #0: ffffffffab1774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.303677][    C2]
| [   15.303677][    C2] stack backtrace:
[   15.303922][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.303924][    C2] Call Trace:
[   15.303926][    C2]  <IRQ>
[ 15.303928][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.303935][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.303940][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.303944][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.303948][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.303954][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.303957][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.303961][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.303964][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.303968][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.303971][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.303976][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.303980][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.303982][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.303987][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.303990][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.303993][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 15.303997][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.304001][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.304006][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.304010][ 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) 
[ 15.304016][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.304018][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.304021][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.304024][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.304029][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.304032][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.304035][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.304038][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.304041][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.304044][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.304046][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.304049][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.304052][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.304059][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.304063][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.304067][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.304069][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.304072][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.304076][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.304080][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.304083][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.304086][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.304091][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.304095][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.304100][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.304103][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.304106][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.304109][    C2]  </IRQ>
[   15.304110][    C2]  <TASK>
[ 15.304112][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.304115][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.304119][ 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
[   15.304121][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   15.304124][    C2] RAX: 0000000000044f69 RBX: 1ffff92000028fc1 RCX: ffffffffaa1905d9
[   15.304126][    C2] RDX: 0000000000000000 RSI: ffffffffaac8f4e4 RDI: ffffffffaa453be0
[   15.304128][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ee66fa
[   15.304130][    C2] R10: ffff88802f7337d3 R11: ffffffffaae11288 R12: 0000000000000000
[   15.304131][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.304135][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.304140][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.304142][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.304145][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.304148][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.304152][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.304156][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.304160][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.304163][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.304166][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.304170][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.322418][    C2] RCU nest depth: 0, expected: 0
| [   15.322721][    C2] INFO: lockdep is turned off.
| [   15.322928][    C2] Preemption disabled at:
| [ 15.322929][ C2] 0x0 
[   15.323351][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.323353][    C2] Call Trace:
[   15.323355][    C2]  <IRQ>
[ 15.323356][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.323363][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 15.323369][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.323374][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.323377][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.323381][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.323385][ 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) 
[ 15.323391][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.323394][ 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) 
[ 15.323397][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.323402][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.323405][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.323411][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.323414][ 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) 
[ 15.323418][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.323421][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.323425][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.323429][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.323433][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.323437][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.323440][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.323443][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.323445][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.323449][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 15.323451][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.323453][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.323456][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.323464][ C2] __put_net (net/core/net_namespace.c:732) 
[ 15.323467][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.323472][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.323474][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.323477][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.323483][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.323486][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.323490][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.323493][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.323498][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.323502][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 15.323507][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.323510][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.323513][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.323517][    C2]  </IRQ>
[   15.323518][    C2]  <TASK>
[ 15.323519][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.323522][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.323526][ 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
[   15.323528][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   15.323531][    C2] RAX: 0000000000044f69 RBX: 1ffff92000028fc1 RCX: ffffffffaa1905d9
[   15.323534][    C2] RDX: 0000000000000000 RSI: ffffffffaac8f4e4 RDI: ffffffffaa453be0
[   15.323535][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ee66fa
[   15.323537][    C2] R10: ffff88802f7337d3 R11: ffffffffaae11288 R12: 0000000000000000
[   15.323539][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 15.323543][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.323547][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.323550][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.323552][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.323556][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.323559][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.323563][ C2] do_idle (kernel/sched/idle.c:325) 
[ 15.323567][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.323570][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.323573][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.323577][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.097156][    C2] INFO: lockdep is turned off.
| [   17.097400][    C2] Preemption disabled at:
| [ 17.097402][ C2] 0x0 
| [   17.097890][    C2] Tainted: [W]=WARN
[   17.097891][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.097893][    C2] Call Trace:
[   17.097895][    C2]  <IRQ>
[ 17.097896][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.097905][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 17.097912][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.097916][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.097919][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.097924][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.097929][ 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) 
[ 17.097935][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.097938][ 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) 
[ 17.097941][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.097947][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.097950][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.097956][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.097960][ 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) 
[ 17.097965][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.097968][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.097972][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.097977][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.097981][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.097985][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.097988][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.097991][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.097994][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.097997][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 17.097999][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.098002][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.098005][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.098010][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.098014][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.098019][ C2] __put_net (net/core/net_namespace.c:732) 
[ 17.098022][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.098027][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.098029][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.098034][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.098037][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.098044][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.098049][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.098054][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 17.098059][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.098062][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.098065][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.098071][    C2]  </IRQ>
[   17.098072][    C2]  <TASK>
[ 17.098074][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.098077][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.098081][ 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
[   17.098084][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   17.098087][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffffaa1905d9
[   17.098090][    C2] RDX: ffffed1005ee66fb RSI: ffffffffaa453b60 RDI: ffffffffa798d18f
[   17.098092][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ee66fa
[   17.098093][    C2] R10: ffff88802f7337d3 R11: ffffffffadb318c0 R12: 0000000000000000
[   17.098095][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 17.098099][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.098102][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.098106][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.098109][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.098111][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.098114][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.098118][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.098122][ C2] do_idle (kernel/sched/idle.c:325) 
[ 17.098126][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.098129][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.098131][ C2] ? __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