======================================
| [   17.214050][    C3] 1 lock held by swapper/3/0:
| [ 17.214258][ C3] #0: ffffffffa9b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   17.214619][    C3]
| [   17.214619][    C3] stack backtrace:
[   17.214872][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.214874][    C3] Call Trace:
[   17.214876][    C3]  <IRQ>
[ 17.214879][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.214886][ C3] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 17.214893][ C3] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 17.214901][ C3] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 17.214906][ C3] ? save_trace (kernel/locking/lockdep.c:595) 
[ 17.214912][ C3] mark_lock (kernel/locking/lockdep.c:4756) 
[ 17.214916][ C3] mark_usage (kernel/locking/lockdep.c:4645) 
[ 17.214919][ C3] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 17.214922][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.214927][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 17.214930][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.214934][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.214938][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 17.214941][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.214946][ C3] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 17.214949][ C3] ? simple_pin_fs (fs/libfs.c:1067) 
[ 17.214952][ C3] simple_pin_fs (fs/libfs.c:1067) 
[ 17.214957][ C3] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 17.214960][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 17.214966][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 17.214969][ 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) 
[ 17.214974][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.214977][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 17.214980][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.214983][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.214988][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.214992][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.214995][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.214998][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.215000][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.215004][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.215006][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.215009][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.215012][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.215020][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.215023][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.215027][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.215030][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.215033][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.215037][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.215040][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.215044][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.215047][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.215052][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.215056][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.215062][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.215064][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.215067][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.215071][    C3]  </IRQ>
[   17.215072][    C3]  <TASK>
[ 17.215073][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.215076][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.215080][ C3] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   17.215083][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   17.215086][    C3] RAX: 0000000000045007 RBX: 1ffff9200002afc1 RCX: ffffffffa8b8f5d9
[   17.215088][    C3] RDX: 0000000000000000 RSI: ffffffffa968f4e4 RDI: ffffffffa8e53be0
[   17.215090][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005eb66fa
[   17.215092][    C3] R10: ffff88802f5b37d3 R11: ffffffffa9811288 R12: 0000000000000000
[   17.215093][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.215097][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.215102][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.215105][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.215108][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.215111][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.215115][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.215119][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.215123][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.215126][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.215129][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.215133][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   17.232257][    C3] RCU nest depth: 0, expected: 0
| [   17.232453][    C3] INFO: lockdep is turned off.
| [   17.232648][    C3] Preemption disabled at:
| [ 17.232650][ C3] 0x0 
[   17.233008][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.233010][    C3] Call Trace:
[   17.233012][    C3]  <IRQ>
[ 17.233014][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 17.233023][ C3] __might_resched (kernel/sched/core.c:8796) 
[ 17.233030][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 17.233034][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 17.233037][ C3] ? simple_recursive_removal (fs/libfs.c:614) 
[ 17.233041][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.233046][ 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) 
[ 17.233052][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 17.233055][ 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) 
[ 17.233058][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 17.233063][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 17.233066][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 17.233072][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 17.233076][ 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) 
[ 17.233081][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.233084][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 17.233088][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 17.233092][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 17.233097][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.233102][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.233106][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.233111][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.233114][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.233117][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 17.233119][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.233122][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.233125][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 17.233133][ C3] __put_net (net/core/net_namespace.c:732) 
[ 17.233136][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 17.233141][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.233143][ C3] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 17.233146][ C3] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 17.233152][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 17.233156][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 17.233160][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 17.233163][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 17.233168][ C3] rcu_core (kernel/rcu/tree.c:2834) 
[ 17.233173][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 17.233178][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 17.233181][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 17.233183][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   17.233187][    C3]  </IRQ>
[   17.233188][    C3]  <TASK>
[ 17.233190][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 17.233192][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 17.233196][ C3] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   17.233199][    C3] RSP: 0018:ffffc90000157de8 EFLAGS: 00000242
[   17.233203][    C3] RAX: 0000000000045007 RBX: 1ffff9200002afc1 RCX: ffffffffa8b8f5d9
[   17.233205][    C3] RDX: 0000000000000000 RSI: ffffffffa968f4e4 RDI: ffffffffa8e53be0
[   17.233206][    C3] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005eb66fa
[   17.233208][    C3] R10: ffff88802f5b37d3 R11: ffffffffa9811288 R12: 0000000000000000
[   17.233210][    C3] R13: ffff888001bf45c0 R14: dffffc0000000000 R15: 0000000000000000
[ 17.233214][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 17.233218][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 17.233221][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 17.233224][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 17.233227][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 17.233231][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 17.233235][ C3] do_idle (kernel/sched/idle.c:325) 
[ 17.233238][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 17.233241][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 17.233244][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 17.233248][ C3] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   19.721463][    C2] INFO: lockdep is turned off.
| [   19.721664][    C2] Preemption disabled at:
| [ 19.721666][ C2] 0x0 
| [   19.722036][    C2] Tainted: [W]=WARN
[   19.722038][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.722040][    C2] Call Trace:
[   19.722043][    C2]  <IRQ>
[ 19.722045][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 19.722057][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 19.722067][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 19.722073][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 19.722076][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 19.722082][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.722088][ 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) 
[ 19.722096][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 19.722099][ 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) 
[ 19.722102][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 19.722109][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 19.722112][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 19.722120][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 19.722123][ 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) 
[ 19.722131][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.722135][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 19.722138][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 19.722145][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 19.722151][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.722156][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.722159][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.722162][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.722165][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.722169][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 19.722171][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.722174][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.722178][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 19.722185][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 19.722191][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.722195][ C2] __put_net (net/core/net_namespace.c:732) 
[ 19.722200][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 19.722204][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.722207][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 19.722212][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 19.722216][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 19.722223][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 19.722230][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 19.722235][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 19.722240][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 19.722243][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 19.722246][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   19.722250][    C2]  </IRQ>
[   19.722251][    C2]  <TASK>
[ 19.722252][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 19.722255][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 19.722260][ C2] Code: a2 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 47 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:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  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 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  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
[   19.722263][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   19.722267][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffffa8b8f5d9
[   19.722269][    C2] RDX: ffffed1005ea66fb RSI: ffffffffa8e53b60 RDI: ffffffffa638d18f
[   19.722271][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1005ea66fa
[   19.722273][    C2] R10: ffff88802f5337d3 R11: ffffffffac490298 R12: 0000000000000000
[   19.722275][    C2] R13: ffff888001bf2300 R14: dffffc0000000000 R15: 0000000000000000
[ 19.722279][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 19.722282][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.722286][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 19.722289][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 19.722291][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 19.722294][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 19.722298][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 19.722303][ C2] do_idle (kernel/sched/idle.c:325) 
[ 19.722306][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 19.722309][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 19.722312][ 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