======================================
| [   15.288342][    C1] 1 lock held by swapper/1/0:
| [ 15.288537][ C1] #0: ffffffff8a9774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   15.288871][    C1]
| [   15.288871][    C1] stack backtrace:
[   15.289106][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.289108][    C1] Call Trace:
[   15.289110][    C1]  <IRQ>
[ 15.289112][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.289118][ C1] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 15.289123][ C1] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 15.289127][ C1] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 15.289132][ C1] ? save_trace (kernel/locking/lockdep.c:595) 
[ 15.289138][ C1] mark_lock (kernel/locking/lockdep.c:4756) 
[ 15.289141][ C1] mark_usage (kernel/locking/lockdep.c:4645) 
[ 15.289144][ C1] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 15.289147][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.289151][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 15.289154][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.289159][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.289163][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 15.289165][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.289170][ C1] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 15.289173][ C1] ? simple_pin_fs (fs/libfs.c:1067) 
[ 15.289176][ C1] simple_pin_fs (fs/libfs.c:1067) 
[ 15.289180][ C1] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 15.289183][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.289189][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.289193][ C1] ? __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) 
[ 15.289198][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.289201][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.289204][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.289207][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.289211][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.289215][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.289218][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.289220][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.289223][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.289226][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 15.289228][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.289231][ C1] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.289234][ C1] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.289241][ C1] __put_net (net/core/net_namespace.c:732) 
[ 15.289245][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.289249][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.289251][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.289255][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.289259][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.289262][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.289266][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.289268][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.289273][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.289277][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 15.289283][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.289286][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.289288][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.289292][    C1]  </IRQ>
[   15.289293][    C1]  <TASK>
[ 15.289294][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.289297][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.289301][ C1] 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
[   15.289304][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000242
[   15.289307][    C1] RAX: 0000000000083c23 RBX: 1ffff92000026fc1 RCX: ffffffff899905d9
[   15.289309][    C1] RDX: 0000000000000000 RSI: ffffffff8a48f4e4 RDI: ffffffff89c53be0
[   15.289311][    C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c166fa
[   15.289313][    C1] R10: ffff8880360b37d3 R11: ffffffff8a611288 R12: 0000000000000000
[   15.289314][    C1] R13: ffff888001bf0040 R14: dffffc0000000000 R15: 0000000000000000
[ 15.289318][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.289323][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.289325][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.289328][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.289331][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.289335][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.289339][ C1] do_idle (kernel/sched/idle.c:325) 
[ 15.289343][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.289346][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.289349][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.289353][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   15.305056][    C1] RCU nest depth: 0, expected: 0
| [   15.305226][    C1] INFO: lockdep is turned off.
| [   15.305396][    C1] Preemption disabled at:
| [ 15.305397][ C1] 0x0 
[   15.305714][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.305716][    C1] Call Trace:
[   15.305717][    C1]  <IRQ>
[ 15.305719][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 15.305725][ C1] __might_resched (kernel/sched/core.c:8796) 
[ 15.305732][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 15.305736][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 15.305739][ C1] ? simple_recursive_removal (fs/libfs.c:614) 
[ 15.305742][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.305747][ C1] ? 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) 
[ 15.305752][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 15.305755][ C1] ? 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) 
[ 15.305758][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 15.305763][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 15.305766][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 15.305771][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 15.305774][ C1] ? __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) 
[ 15.305779][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.305782][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 15.305785][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 15.305789][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 15.305794][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.305798][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.305801][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.305804][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.305806][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.305809][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 15.305812][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.305814][ C1] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.305817][ C1] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 15.305824][ C1] __put_net (net/core/net_namespace.c:732) 
[ 15.305827][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 15.305831][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.305834][ C1] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 15.305837][ C1] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 15.305842][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 15.305846][ C1] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 15.305850][ C1] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 15.305853][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 15.305858][ C1] rcu_core (kernel/rcu/tree.c:2834) 
[ 15.305862][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 15.305867][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 15.305870][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 15.305873][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   15.305876][    C1]  </IRQ>
[   15.305877][    C1]  <TASK>
[ 15.305879][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 15.305882][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 15.305885][ C1] 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
[   15.305888][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000242
[   15.305891][    C1] RAX: 0000000000083c23 RBX: 1ffff92000026fc1 RCX: ffffffff899905d9
[   15.305892][    C1] RDX: 0000000000000000 RSI: ffffffff8a48f4e4 RDI: ffffffff89c53be0
[   15.305894][    C1] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c166fa
[   15.305896][    C1] R10: ffff8880360b37d3 R11: ffffffff8a611288 R12: 0000000000000000
[   15.305897][    C1] R13: ffff888001bf0040 R14: dffffc0000000000 R15: 0000000000000000
[ 15.305901][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 15.305906][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 15.305908][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 15.305911][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 15.305914][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 15.305917][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 15.305921][ C1] do_idle (kernel/sched/idle.c:325) 
[ 15.305925][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 15.305928][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 15.305931][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 15.305935][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.202803][    C2] INFO: lockdep is turned off.
| [   17.202989][    C2] Preemption disabled at:
| [ 17.202991][ C2] 0x0 
| [   17.203329][    C2] Tainted: [W]=WARN
[   17.203331][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.203333][    C2] Call Trace:
[   17.203335][    C2]  <IRQ>
[ 17.203337][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.203345][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 17.203352][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.203357][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.203360][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.203365][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.203370][ 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) 
[ 17.203376][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.203379][ 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) 
[ 17.203382][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.203387][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.203391][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:412 lib/ref_tracker.c:196) 
[ 17.203396][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:254) 
[ 17.203400][ 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) 
[ 17.203405][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.203409][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:190) 
[ 17.203412][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.203417][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.203422][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.203425][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.203429][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.203431][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.203434][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.203438][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 17.203440][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.203443][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.203446][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.203452][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 17.203457][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.203462][ C2] __put_net (net/core/net_namespace.c:732) 
[ 17.203468][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.203472][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.203474][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.203479][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.203483][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 17.203489][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.203495][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.203499][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 17.203505][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.203508][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.203511][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.203514][    C2]  </IRQ>
[   17.203515][    C2]  <TASK>
[ 17.203517][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.203520][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.203525][ 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
[   17.203527][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   17.203531][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff899905d9
[   17.203533][    C2] RDX: ffffed1006c266fb RSI: ffffffff89c53b60 RDI: ffffffff8718d18f
[   17.203535][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c266fa
[   17.203537][    C2] R10: ffff8880361337d3 R11: ffffffff8d270108 R12: 0000000000000000
[   17.203539][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 17.203543][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.203546][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.203550][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.203552][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.203555][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.203558][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.203561][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.203566][ C2] do_idle (kernel/sched/idle.c:325) 
[ 17.203569][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.203572][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.203575][ 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