======================================
| [   16.242589][    C3] 1 lock held by swapper/3/0:
| [ 16.242776][ C3] #0: ffffffff9ed774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.243126][    C3]
| [   16.243126][    C3] stack backtrace:
[   16.243362][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.243364][    C3] Call Trace:
[   16.243367][    C3]  <IRQ>
[ 16.243369][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.243375][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.243380][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.243384][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 16.243388][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.243394][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.243398][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.243401][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.243404][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.243408][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.243411][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.243415][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.243419][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.243422][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.243426][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.243430][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.243433][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 16.243437][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.243440][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.243446][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.243449][ 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) 
[ 16.243455][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.243458][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.243461][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.243464][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.243469][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.243473][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.243476][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.243479][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.243482][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.243485][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.243488][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.243490][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.243493][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.243501][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.243504][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.243508][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.243511][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.243514][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.243518][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.243521][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.243525][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.243528][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.243533][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.243537][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.243543][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.243546][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.243549][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.243552][    C3]  </IRQ>
[   16.243553][    C3]  <TASK>
[ 16.243555][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.243558][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.243562][ 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
[   16.243565][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   16.243568][    C3] RAX: 000000000004cc49 RBX: 1ffff9200002afc1 RCX: ffffffff9dd905d9
[   16.243570][    C3] RDX: 0000000000000000 RSI: ffffffff9e88f4e4 RDI: ffffffff9e053be0
[   16.243572][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.243573][    C3] R10: ffff8880361b37d3 R11: ffffffff9ea11288 R12: 0000000000000000
[   16.243575][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.243579][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.243583][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.243586][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.243589][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.243592][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.243596][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.243600][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.243604][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.243607][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.243609][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.243614][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.259435][    C3] RCU nest depth: 0, expected: 0
| [   16.259711][    C3] INFO: lockdep is turned off.
| [   16.259998][    C3] Preemption disabled at:
| [ 16.260000][ C3] 0x0 
[   16.260305][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.260306][    C3] Call Trace:
[   16.260308][    C3]  <IRQ>
[ 16.260310][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.260315][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 16.260322][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.260326][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.260329][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.260333][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.260337][ 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) 
[ 16.260343][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.260346][ 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) 
[ 16.260349][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.260354][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.260357][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 16.260363][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 16.260366][ 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) 
[ 16.260370][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.260373][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 16.260376][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.260380][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.260385][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.260388][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.260391][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.260394][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.260396][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.260399][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 16.260401][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.260404][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.260407][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 16.260414][ C3] __put_net (net/core/net_namespace.c:732) 
[ 16.260417][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.260421][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.260423][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.260427][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.260432][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.260435][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.260439][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.260442][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.260447][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.260451][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 16.260457][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.260460][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.260462][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.260466][    C3]  </IRQ>
[   16.260467][    C3]  <TASK>
[ 16.260468][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.260471][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.260475][ 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
[   16.260477][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   16.260480][    C3] RAX: 000000000004cc49 RBX: 1ffff9200002afc1 RCX: ffffffff9dd905d9
[   16.260482][    C3] RDX: 0000000000000000 RSI: ffffffff9e88f4e4 RDI: ffffffff9e053be0
[   16.260483][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c366fa
[   16.260485][    C3] R10: ffff8880361b37d3 R11: ffffffff9ea11288 R12: 0000000000000000
[   16.260487][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 16.260490][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.260495][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.260498][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.260500][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.260504][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.260507][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.260511][ C3] do_idle (kernel/sched/idle.c:325) 
[ 16.260515][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.260518][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 16.260520][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 16.260525][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.490394][    C2] INFO: lockdep is turned off.
| [   18.490575][    C2] Preemption disabled at:
| [ 18.490577][ C2] 0x0 
| [   18.490938][    C2] Tainted: [W]=WARN
[   18.490939][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.490942][    C2] Call Trace:
[   18.490943][    C2]  <IRQ>
[ 18.490946][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.490955][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.490963][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.490967][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.490970][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.490975][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.490980][ 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) 
[ 18.490986][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.490988][ 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) 
[ 18.490992][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.490997][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.491000][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 18.491006][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 18.491010][ 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) 
[ 18.491016][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.491019][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 18.491023][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.491027][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.491032][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.491036][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.491039][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.491042][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.491044][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.491048][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 18.491050][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.491053][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.491056][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 18.491061][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.491065][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.491069][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.491074][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.491078][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.491080][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.491085][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.491088][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.491094][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.491100][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.491105][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.491110][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.491113][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.491116][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.491119][    C2]  </IRQ>
[   18.491120][    C2]  <TASK>
[ 18.491122][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.491125][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 18.491129][ 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
[   18.491132][    C2] RSP: 0000:ffffc90000147de8 EFLAGS: 00000246
[   18.491135][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9dd905d9
[   18.491138][    C2] RDX: ffffed1006c266fb RSI: ffffffff9e053b60 RDI: ffffffff9b58d18f
[   18.491140][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   18.491142][    C2] R10: ffff8880361337d3 R11: ffff888001ee2818 R12: 0000000000000000
[   18.491144][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 18.491147][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 18.491151][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.491155][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 18.491157][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 18.491160][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 18.491163][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 18.491167][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 18.491171][ C2] do_idle (kernel/sched/idle.c:325) 
[ 18.491174][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 18.491177][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 18.491180][ 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