======================================
| [   25.312860][    C2] 1 lock held by swapper/2/0:
| [ 25.313140][ C2] #0: ffffffffb8b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   25.313501][    C2]
| [   25.313501][    C2] stack backtrace:
[   25.313744][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.313747][    C2] Call Trace:
[   25.313749][    C2]  <IRQ>
[ 25.313752][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.313762][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 25.313769][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 25.313774][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 25.313780][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 25.313786][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 25.313790][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 25.313793][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 25.313796][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.313801][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 25.313804][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 25.313810][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.313815][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 25.313818][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 25.313822][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 25.313827][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 25.313830][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 25.313834][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 25.313840][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 25.313847][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 25.313851][ 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) 
[ 25.313858][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.313861][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 25.313864][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 25.313867][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 25.313873][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 25.313877][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 25.313880][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 25.313883][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 25.313886][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 25.313890][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 25.313893][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 25.313896][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 25.313900][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 25.313909][ C2] __put_net (net/core/net_namespace.c:732) 
[ 25.313913][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 25.313917][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.313920][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.313926][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.313932][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 25.313938][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.313943][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.313948][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 25.313953][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 25.313959][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 25.313964][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 25.313968][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 25.313971][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   25.313975][    C2]  </IRQ>
[   25.313976][    C2]  <TASK>
[ 25.313978][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 25.313981][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 25.313986][ 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
[   25.313988][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   25.313992][    C2] RAX: 0000000000048363 RBX: 1ffff92000028fc1 RCX: ffffffffb7b905d9
[   25.313994][    C2] RDX: 0000000000000000 RSI: ffffffffb868f4e4 RDI: ffffffffb7e53be0
[   25.313996][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   25.313998][    C2] R10: ffff8880361337d3 R11: ffffffffb8811288 R12: 0000000000000000
[   25.314000][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 25.314004][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 25.314008][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 25.314011][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 25.314013][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 25.314017][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 25.314021][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 25.314025][ C2] do_idle (kernel/sched/idle.c:325) 
[ 25.314029][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 25.314032][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 25.314035][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 25.314040][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   25.332349][    C2] RCU nest depth: 0, expected: 0
| [   25.332780][    C2] INFO: lockdep is turned off.
| [   25.333003][    C2] Preemption disabled at:
| [ 25.333005][ C2] 0x0 
[   25.333412][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.333414][    C2] Call Trace:
[   25.333417][    C2]  <IRQ>
[ 25.333420][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 25.333442][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 25.333451][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 25.333455][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 25.333458][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 25.333464][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.333470][ 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) 
[ 25.333477][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 25.333480][ 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) 
[ 25.333484][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 25.333490][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 25.333493][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 25.333501][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 25.333504][ 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) 
[ 25.333511][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.333515][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 25.333518][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 25.333524][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 25.333530][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 25.333535][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 25.333538][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 25.333541][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 25.333544][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 25.333548][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 25.333551][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 25.333554][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 25.333558][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 25.333567][ C2] __put_net (net/core/net_namespace.c:732) 
[ 25.333572][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 25.333576][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.333578][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 25.333582][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.333589][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 25.333592][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 25.333597][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 25.333600][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 25.333605][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 25.333610][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 25.333616][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 25.333619][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 25.333621][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   25.333625][    C2]  </IRQ>
[   25.333626][    C2]  <TASK>
[ 25.333628][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 25.333631][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 25.333635][ 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
[   25.333639][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   25.333643][    C2] RAX: 0000000000048363 RBX: 1ffff92000028fc1 RCX: ffffffffb7b905d9
[   25.333645][    C2] RDX: 0000000000000000 RSI: ffffffffb868f4e4 RDI: ffffffffb7e53be0
[   25.333647][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c266fa
[   25.333648][    C2] R10: ffff8880361337d3 R11: ffffffffb8811288 R12: 0000000000000000
[   25.333650][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 25.333654][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 25.333659][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 25.333661][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 25.333664][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 25.333667][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 25.333671][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 25.333675][ C2] do_idle (kernel/sched/idle.c:325) 
[ 25.333679][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 25.333682][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 25.333685][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 25.333689][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   31.543084][    C3] INFO: lockdep is turned off.
| [   31.543405][    C3] Preemption disabled at:
| [ 31.543408][ C3] 0x0 
| [   31.543992][    C3] Tainted: [W]=WARN
[   31.543995][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.543998][    C3] Call Trace:
[   31.544001][    C3]  <IRQ>
[ 31.544005][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 31.544022][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 31.544035][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 31.544043][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 31.544048][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 31.544055][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.544065][ 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) 
[ 31.544076][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 31.544080][ 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) 
[ 31.544085][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 31.544096][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 31.544101][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 31.544112][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 31.544117][ 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) 
[ 31.544127][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 31.544134][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 31.544139][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 31.544148][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 31.544157][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 31.544164][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 31.544170][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 31.544174][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 31.544178][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 31.544184][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 31.544187][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 31.544191][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 31.544197][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 31.544206][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 31.544213][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.544221][ C3] __put_net (net/core/net_namespace.c:732) 
[ 31.544228][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 31.544234][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 31.544238][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 31.544247][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 31.544252][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 31.544261][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 31.544270][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 31.544278][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 31.544287][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 31.544292][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 31.544296][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   31.544302][    C3]  </IRQ>
[   31.544304][    C3]  <TASK>
[ 31.544309][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 31.544314][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 31.544320][ 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
[   31.544325][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000246
[   31.544331][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffffb7b905d9
[   31.544334][    C3] RDX: ffffed1006c366fb RSI: ffffffffb7e53b60 RDI: ffffffffb538d18f
[   31.544337][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c366fa
[   31.544341][    C3] R10: ffff8880361b37d3 R11: ffff888004f14ad8 R12: 0000000000000000
[   31.544344][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 31.544350][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 31.544356][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 31.544362][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 31.544366][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 31.544371][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 31.544377][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 31.544383][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 31.544390][ C3] do_idle (kernel/sched/idle.c:325) 
[ 31.544396][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 31.544401][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 31.544407][ 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