======================================
| [   20.467260][    C2] 1 lock held by swapper/2/0:
| [ 20.467442][ C2] #0: ffffffff9c374c00 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   20.467763][    C2]
| [   20.467763][    C2] stack backtrace:
[   20.468000][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.468003][    C2] Call Trace:
[   20.468005][    C2]  <IRQ>
[ 20.468007][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.468014][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 20.468018][ C2] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 20.468022][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 20.468028][ C2] ? save_trace (kernel/locking/lockdep.c:594) 
[ 20.468034][ C2] mark_lock (kernel/locking/lockdep.c:4754) 
[ 20.468037][ C2] mark_usage (kernel/locking/lockdep.c:4643) 
[ 20.468040][ C2] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 20.468045][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 20.468048][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 20.468051][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 20.468056][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 20.468059][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 20.468062][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 20.468065][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 20.468067][ C2] simple_pin_fs (fs/libfs.c:1066) 
[ 20.468070][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 20.468073][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 20.468079][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 20.468082][ 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:2333) 
[ 20.468088][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.468090][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 20.468094][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.468096][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 20.468102][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.468107][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 20.468110][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 20.468114][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.468116][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.468121][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 20.468123][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.468126][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.468130][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.468138][ C2] __put_net (net/core/net_namespace.c:732) 
[ 20.468141][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 20.468145][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.468147][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.468151][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 20.468154][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 20.468158][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 20.468160][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.468165][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 20.468170][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 20.468175][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.468178][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.468181][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   20.468184][    C2]  </IRQ>
[   20.468185][    C2]  <TASK>
[ 20.468187][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.468189][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 20.468194][ C2] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   20.468197][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   20.468200][    C2] RAX: 00000000000521eb RBX: 1ffff92000028fc1 RCX: ffffffff9b3d7a19
[   20.468202][    C2] RDX: 0000000000000000 RSI: ffffffff9be9c7ba RDI: ffffffff9b655ce0
[   20.468204][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2667a
[   20.468205][    C2] R10: ffff8880361333d3 R11: 0000000000000000 R12: 0000000000000000
[   20.468207][    C2] R13: ffff888001bba340 R14: dffffc0000000000 R15: 0000000000000000
[ 20.468211][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.468216][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 20.468219][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.468221][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.468224][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.468228][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 20.468232][ C2] do_idle (kernel/sched/idle.c:325) 
[ 20.468235][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.468238][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.468241][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 20.468245][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   20.485183][    C2] RCU nest depth: 0, expected: 0
| [   20.485492][    C2] INFO: lockdep is turned off.
| [   20.485776][    C2] Preemption disabled at:
| [ 20.485778][ C2] 0x0 
[   20.486115][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.486117][    C2] Call Trace:
[   20.486119][    C2]  <IRQ>
[ 20.486121][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 20.486131][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 20.486139][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 20.486142][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 20.486145][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 20.486151][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 20.486157][ 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) 
[ 20.486163][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 20.486166][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 20.486171][ 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) 
[ 20.486176][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 20.486179][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 20.486185][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 20.486188][ 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:2333) 
[ 20.486194][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.486198][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 20.486201][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 20.486208][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 20.486213][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.486217][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 20.486220][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 20.486223][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.486226][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.486230][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 20.486233][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.486237][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.486241][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 20.486249][ C2] __put_net (net/core/net_namespace.c:732) 
[ 20.486252][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 20.486255][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.486258][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 20.486262][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 20.486265][ C2] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 20.486269][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 20.486271][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 20.486278][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 20.486283][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 20.486288][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 20.486292][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 20.486294][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   20.486298][    C2]  </IRQ>
[   20.486299][    C2]  <TASK>
[ 20.486301][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 20.486303][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 20.486307][ C2] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   20.486310][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   20.486314][    C2] RAX: 00000000000521eb RBX: 1ffff92000028fc1 RCX: ffffffff9b3d7a19
[   20.486317][    C2] RDX: 0000000000000000 RSI: ffffffff9be9c7ba RDI: ffffffff9b655ce0
[   20.486318][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1006c2667a
[   20.486320][    C2] R10: ffff8880361333d3 R11: 0000000000000000 R12: 0000000000000000
[   20.486322][    C2] R13: ffff888001bba340 R14: dffffc0000000000 R15: 0000000000000000
[ 20.486326][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 20.486331][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 20.486335][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 20.486337][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 20.486340][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 20.486343][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 20.486348][ C2] do_idle (kernel/sched/idle.c:325) 
[ 20.486351][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 20.486354][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 20.486357][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 20.486361][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   22.952075][    C0] INFO: lockdep is turned off.
| [   22.952293][    C0] Preemption disabled at:
| [ 22.952295][ C0] handle_softirqs (kernel/softirq.c:553) 
| [   22.952731][    C0] Tainted: [W]=WARN
[   22.952732][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.952734][    C0] Call Trace:
[   22.952737][    C0]  <IRQ>
[ 22.952738][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 22.952749][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 22.952760][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 22.952764][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 22.952767][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 22.952773][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.952780][ C0] ? 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) 
[ 22.952788][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 22.952791][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 22.952798][ C0] ? 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) 
[ 22.952802][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 22.952805][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 22.952812][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 22.952815][ C0] ? __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:2333) 
[ 22.952822][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 22.952826][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 22.952829][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 22.952832][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 22.952838][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 22.952844][ C0] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:416) 
[ 22.952846][ C0] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 22.952851][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 22.952857][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 22.952860][ C0] ? set_track_prepare (mm/slub.c:936) 
[ 22.952865][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 22.952868][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 22.952872][ C0] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 22.952877][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 22.952881][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.952885][ C0] __put_net (net/core/net_namespace.c:732) 
[ 22.952888][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 22.952892][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 22.952894][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 22.952898][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 22.952902][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.952904][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 22.952910][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 22.952916][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 22.952921][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 22.952924][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 22.952926][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   22.952930][    C0]  </IRQ>
[   22.952931][    C0]  <TASK>
[ 22.952932][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 22.952935][ C0] RIP: 0010:__rcu_read_lock (kernel/rcu/tree_plugin.h:416) 
[ 22.952938][ C0] Code: 48 b8 00 00 00 00 00 fc ff df 89 9d 04 04 00 00 65 48 8b 1d 0e c7 0e 05 48 8d bb 04 04 00 00 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1f 8b 83 04 04 00
All code
========
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	89 9d 04 04 00 00    	mov    %ebx,0x404(%rbp)
  10:	65 48 8b 1d 0e c7 0e 	mov    %gs:0x50ec70e(%rip),%rbx        # 0x50ec726
  17:	05 
  18:	48 8d bb 04 04 00 00 	lea    0x404(%rbx),%rdi
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	0f b6 14 02          	movzbl (%rdx,%rax,1),%edx
  2a:*	48 89 f8             	mov    %rdi,%rax		<-- trapping instruction
  2d:	83 e0 07             	and    $0x7,%eax
  30:	83 c0 03             	add    $0x3,%eax
  33:	38 d0                	cmp    %dl,%al
  35:	7c 04                	jl     0x3b
  37:	84 d2                	test   %dl,%dl
  39:	75 1f                	jne    0x5a
  3b:	8b                   	.byte 0x8b
  3c:	83 04 04 00          	addl   $0x0,(%rsp,%rax,1)

Code starting with the faulting instruction
===========================================
   0:	48 89 f8             	mov    %rdi,%rax
   3:	83 e0 07             	and    $0x7,%eax
   6:	83 c0 03             	add    $0x3,%eax
   9:	38 d0                	cmp    %dl,%al
   b:	7c 04                	jl     0x11
   d:	84 d2                	test   %dl,%dl
   f:	75 1f                	jne    0x30
  11:	8b                   	.byte 0x8b
  12:	83 04 04 00          	addl   $0x0,(%rsp,%rax,1)
[   22.952941][    C0] RSP: 0018:ffffc900004d7198 EFLAGS: 00000a07
[   22.952945][    C0] RAX: dffffc0000000000 RBX: ffff888008dfc640 RCX: 0000000000000001
[   22.952947][    C0] RDX: 0000000000000000 RSI: ffffffff993572a7 RDI: ffff888008dfca44
[   22.952949][    C0] RBP: ffff888008dfc640 R08: 0000000000000000 R09: ffffc900004d72f1
[   22.952951][    C0] R10: ffffffff98a0d397 R11: ffffc900004d72f0 R12: ffffc900004d7308
[   22.952953][    C0] R13: ffffc900004d72b0 R14: ffff888008dfc640 R15: 0000000000000cc0
[ 22.952956][ C0] ? unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 22.952959][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 22.952964][ C0] unwind_next_frame (./include/linux/rcupdate.h:331 ./include/linux/rcupdate.h:841 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 22.952967][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 22.952971][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 22.952974][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 22.952977][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 22.952981][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 22.952984][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 22.952988][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 22.952994][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 22.953003][ C0] ? __alloc_object (mm/kmemleak.c:697) 
[ 22.953008][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 22.953010][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 22.953015][ C0] set_track_prepare (mm/slub.c:936) 
[ 22.953018][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953021][ C0] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 22.953024][ C0] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 22.953029][ C0] __alloc_object (mm/kmemleak.c:697) 
[ 22.953032][ C0] __create_object (mm/kmemleak.c:770) 
[ 22.953037][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 22.953042][ C0] mas_alloc_nodes (lib/maple_tree.c:176 lib/maple_tree.c:1249) 
[ 22.953047][ C0] mas_preallocate (./include/linux/maple_tree.h:562 lib/maple_tree.c:5502) 
[ 22.953050][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953053][ C0] ? __pfx_mas_preallocate (lib/maple_tree.c:5490) 
[ 22.953057][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953062][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953066][ C0] vma_shrink (mm/vma.h:409 mm/vma.c:1153) 
[ 22.953071][ C0] ? __pfx_vma_shrink (mm/vma.c:1143) 
[ 22.953075][ C0] ? mas_prev (lib/maple_tree.c:5836 lib/maple_tree.c:5829) 
[ 22.953077][ C0] ? __pfx_mas_prev (lib/maple_tree.c:5830) 
[ 22.953079][ C0] ? tlb_finish_mmu (./arch/x86/include/asm/atomic.h:60 ./include/linux/atomic/atomic-arch-fallback.h:1210 ./include/linux/atomic/atomic-instrumented.h:593 ./include/linux/mm_inline.h:506 mm/mmu_gather.c:501) 
[ 22.953084][ C0] relocate_vma_down (mm/mmap.c:1729) 
[ 22.953088][ C0] ? __pfx_relocate_vma_down (mm/mmap.c:1729) 
[ 22.953090][ C0] ? __pfx___debug_check_no_obj_freed (lib/debugobjects.c:1070) 
[ 22.953097][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953101][ C0] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 22.953104][ C0] ? virtio_fs_send_req (fs/fuse/virtio_fs.c:1499) 
[ 22.953112][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953117][ C0] ? __pfx_mprotect_fixup (mm/mprotect.c:600) 
[ 22.953120][ C0] ? __pfx_down_write_killable (kernel/locking/rwsem.c:1586) 
[ 22.953123][ C0] ? tlb_finish_mmu (./arch/x86/include/asm/atomic.h:60 ./include/linux/atomic/atomic-arch-fallback.h:1210 ./include/linux/atomic/atomic-instrumented.h:593 ./include/linux/mm_inline.h:506 mm/mmu_gather.c:501) 
[ 22.953127][ C0] setup_arg_pages (fs/exec.c:800) 
[ 22.953133][ C0] ? __pfx_setup_arg_pages (fs/exec.c:711) 
[ 22.953136][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953141][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953146][ C0] ? __pfx_get_random_u64 (drivers/char/random.c:554) 
[ 22.953153][ C0] load_elf_binary (fs/binfmt_elf.c:1021 (discriminator 8)) 
[ 22.953160][ C0] ? __pfx___kernel_read (fs/read_write.c:505) 
[ 22.953164][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953167][ C0] ? load_misc_binary (fs/binfmt_misc.c:215) 
[ 22.953170][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953173][ C0] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 22.953176][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953179][ C0] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 22.953182][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953186][ C0] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 22.953191][ C0] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 22.953195][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 22.953199][ C0] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 22.953202][ C0] do_execveat_common.isra.0 (fs/exec.c:1968) 
[ 22.953206][ C0] __x64_sys_execve (fs/exec.c:2113) 
[ 22.953209][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.953213][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.953216][    C0] RIP: 0033:0x7f6c2632840b
[ 22.953222][ C0] Code: Unable to access opcode bytes at 0x7f6c263283e1.

Code starting with the faulting instruction
===========================================
[   22.953223][    C0] RSP: 002b:00007ffce7a13558 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   22.953226][    C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6c2632840b
[   22.953228][    C0] RDX: 0000563dddb18240 RSI: 0000563dddabbf00 RDI: 0000563dddb18120
[   22.953230][    C0] RBP: 0000563dddb18120 R08: 0000563dddb18e50 R09: 0000000000000000
[   22.953231][    C0] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000ffffffff
[   22.953233][    C0] R13: 0000563dddabbf00 R14: 0000563dddb18240 R15: 0000563dddb17fa0
| [   26.769163][    C0] INFO: lockdep is turned off.
| [   26.769343][    C0] Preemption disabled at:
| [ 26.769345][ C0] handle_softirqs (kernel/softirq.c:553) 
| [   26.769699][    C0] Tainted: [W]=WARN
[   26.769700][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.769702][    C0] Call Trace:
[   26.769704][    C0]  <TASK>
[ 26.769706][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 26.769712][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 26.769720][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 26.769723][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 26.769726][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 26.769730][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.769735][ C0] ? 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) 
[ 26.769741][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 26.769743][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 26.769749][ C0] ? 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) 
[ 26.769753][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 26.769757][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 26.769761][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 26.769765][ C0] ? __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:2333) 
[ 26.769771][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 26.769775][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 26.769779][ C0] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 26.769784][ C0] ? kthread (kernel/kthread.c:464) 
[ 26.769787][ C0] ? ret_from_fork (arch/x86/kernel/process.c:153) 
[ 26.769793][ C0] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 26.769797][ C0] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2417) 
[ 26.769801][ C0] ? __pfx_migrate_enable (kernel/sched/core.c:2392) 
[ 26.769804][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 26.769809][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.769813][ C0] __put_net (net/core/net_namespace.c:732) 
[ 26.769815][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 26.769819][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 26.769821][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 26.769826][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 26.769829][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.769832][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 26.769837][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 26.769842][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 26.769846][ C0] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 26.769850][ C0] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 26.769853][ C0] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 26.769856][ C0] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 26.769860][ C0] kthread (kernel/kthread.c:464) 
[ 26.769863][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.769865][ C0] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 26.769868][ C0] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 26.769871][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 26.769874][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.769877][ C0] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 26.769880][ C0] ? __pfx_kthread (kernel/kthread.c:413) 
[ 26.769882][ C0] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   30.578903][    C0] INFO: lockdep is turned off.
| [   30.579112][    C0] Preemption disabled at:
| [ 30.579114][ C0] __slab_alloc.constprop.0 (mm/slub.c:3945) 
| [   30.579570][    C0] Tainted: [W]=WARN
[   30.579571][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.579573][    C0] Call Trace:
[   30.579575][    C0]  <IRQ>
[ 30.579577][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 30.579584][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 30.579591][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 30.579594][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 30.579597][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 30.579601][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579606][ C0] ? 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) 
[ 30.579612][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 30.579614][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 30.579619][ C0] ? 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) 
[ 30.579624][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 30.579626][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 30.579632][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 30.579635][ C0] ? __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:2333) 
[ 30.579639][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 30.579642][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 30.579645][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 30.579651][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 30.579655][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.579659][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 30.579664][ C0] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 30.579667][ C0] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 30.579670][ C0] ? __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 30.579673][ C0] ? __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 30.579676][ C0] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 30.579679][ C0] ? __put_anon_vma (mm/rmap.c:2757) 
[ 30.579683][ C0] ? unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 30.579686][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 30.579690][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579695][ C0] __put_net (net/core/net_namespace.c:732) 
[ 30.579697][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 30.579702][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 30.579706][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 30.579713][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 30.579717][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579719][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 30.579725][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 30.579730][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 30.579735][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 30.579738][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 30.579741][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   30.579744][    C0]  </IRQ>
[   30.579745][    C0]  <TASK>
[ 30.579747][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 30.579749][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 30.579754][ C0] Code: 74 24 10 e8 f1 42 7e fd 48 89 ef e8 69 95 7e fd 81 e3 00 02 00 00 75 29 9c 58 f6 c4 02 75 35 48 85 db 74 01 fb bf 01 00 00 00 <e8> 8a 9d 72 fd 65 8b 05 83 78 95 02 85 c0 74 0e 5b 5d c3 cc cc cc
All code
========
   0:	74 24                	je     0x26
   2:	10 e8                	adc    %ch,%al
   4:	f1                   	int1
   5:	42 7e fd             	rex.X jle 0x5
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 69 95 7e fd       	call   0xfffffffffd7e9579
  10:	81 e3 00 02 00 00    	and    $0x200,%ebx
  16:	75 29                	jne    0x41
  18:	9c                   	pushf
  19:	58                   	pop    %rax
  1a:	f6 c4 02             	test   $0x2,%ah
  1d:	75 35                	jne    0x54
  1f:	48 85 db             	test   %rbx,%rbx
  22:	74 01                	je     0x25
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
  2a:*	e8 8a 9d 72 fd       	call   0xfffffffffd729db9		<-- trapping instruction
  2f:	65 8b 05 83 78 95 02 	mov    %gs:0x2957883(%rip),%eax        # 0x29578b9
  36:	85 c0                	test   %eax,%eax
  38:	74 0e                	je     0x48
  3a:	5b                   	pop    %rbx
  3b:	5d                   	pop    %rbp
  3c:	c3                   	ret
  3d:	cc                   	int3
  3e:	cc                   	int3
  3f:	cc                   	int3

Code starting with the faulting instruction
===========================================
   0:	e8 8a 9d 72 fd       	call   0xfffffffffd729d8f
   5:	65 8b 05 83 78 95 02 	mov    %gs:0x2957883(%rip),%eax        # 0x295788f
   c:	85 c0                	test   %eax,%eax
   e:	74 0e                	je     0x1e
  10:	5b                   	pop    %rbx
  11:	5d                   	pop    %rbp
  12:	c3                   	ret
  13:	cc                   	int3
  14:	cc                   	int3
  15:	cc                   	int3
[   30.579756][    C0] RSP: 0018:ffffc90000537598 EFLAGS: 00000206
[   30.579760][    C0] RAX: 0000000000000046 RBX: 0000000000000200 RCX: ffffffff98e6805f
[   30.579762][    C0] RDX: 0000000000000000 RSI: ffffffff9b655c60 RDI: 0000000000000001
[   30.579765][    C0] RBP: ffff8880010407c0 R08: 0000000000000000 R09: 0000000000000000
[   30.579766][    C0] R10: ffffffff9cdf7b97 R11: ffffc900005373d8 R12: ffff8880010407c0
[   30.579768][    C0] R13: ffffea00003e1100 R14: ffff888001042940 R15: ffff88800f844620
[ 30.579772][ C0] ? trace_irq_enable.constprop.0 (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/cpumask.h:587 ./include/linux/cpumask.h:1143 ./include/trace/events/preemptirq.h:40) 
[ 30.579777][ C0] get_partial_node.part.0 (mm/slub.c:2902) 
[ 30.579782][ C0] ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 30.579786][ C0] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 30.579790][ C0] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 30.579794][ C0] __slab_alloc.constprop.0 (mm/slub.c:3948) 
[ 30.579798][ C0] ? kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 30.579800][ C0] __kmalloc_cache_noprof (mm/slub.c:4023 mm/slub.c:4184 mm/slub.c:4353) 
[ 30.579805][ C0] kmem_cache_free (mm/slub.c:2333 mm/slub.c:4642 mm/slub.c:4744) 
[ 30.579809][ C0] ? __put_anon_vma (mm/rmap.c:2757) 
[ 30.579813][ C0] __put_anon_vma (mm/rmap.c:2757) 
[ 30.579816][ C0] unlink_anon_vmas (./include/linux/rmap.h:117 mm/rmap.c:444) 
[ 30.579819][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579823][ C0] free_pgtables (mm/memory.c:392) 
[ 30.579830][ C0] ? __pfx_free_pgtables (mm/memory.c:349) 
[ 30.579833][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 30.579835][ C0] ? exit_mmap (./include/linux/seqlock.h:431 ./include/linux/mmap_lock.h:82 ./include/linux/mmap_lock.h:129 mm/mmap.c:1292) 
[ 30.579840][ C0] ? down_write (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1313 kernel/locking/rwsem.c:1578) 
[ 30.579842][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 30.579845][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579847][ C0] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 30.579854][ C0] exit_mmap (mm/mmap.c:1297) 
[ 30.579857][ C0] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 30.579860][ C0] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 30.579866][ C0] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 30.579869][ C0] ? __mutex_unlock_slowpath (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4329 ./include/linux/atomic/atomic-long.h:1506 ./include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:924) 
[ 30.579878][ C0] mmput (kernel/fork.c:1446 kernel/fork.c:1381 kernel/fork.c:1401) 
[ 30.579882][ C0] exec_mmap (fs/exec.c:1014) 
[ 30.579888][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579892][ C0] begin_new_exec (fs/exec.c:1264) 
[ 30.579896][ C0] load_elf_binary (fs/binfmt_elf.c:1002) 
[ 30.579903][ C0] ? __pfx___kernel_read (fs/read_write.c:505) 
[ 30.579908][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579911][ C0] ? load_misc_binary (fs/binfmt_misc.c:215) 
[ 30.579914][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579917][ C0] ? __pfx_load_elf_binary (fs/binfmt_elf.c:825) 
[ 30.579920][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579923][ C0] ? exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 30.579926][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579932][ C0] exec_binprm (fs/exec.c:1778 fs/exec.c:1810) 
[ 30.579940][ C0] ? __pfx_exec_binprm (fs/exec.c:1794) 
[ 30.579944][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 30.579949][ C0] bprm_execve (fs/exec.c:1862 fs/exec.c:1838) 
[ 30.579951][ C0] do_execveat_common.isra.0 (fs/exec.c:1968) 
[ 30.579955][ C0] __x64_sys_execve (fs/exec.c:2113) 
[ 30.579958][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 30.579963][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   30.579965][    C0] RIP: 0033:0x7f6c2632840b
[ 30.579972][ C0] Code: Unable to access opcode bytes at 0x7f6c263283e1.

Code starting with the faulting instruction
===========================================
[   30.579973][    C0] RSP: 002b:00007ffce7a13558 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
[   30.579976][    C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6c2632840b
[   30.579978][    C0] RDX: 0000563dddb18240 RSI: 0000563dddabbf00 RDI: 0000563dddb160c0
[   30.579979][    C0] RBP: 0000563dddb160c0 R08: 0000563dddb18e50 R09: 0000000000000000
[   30.579981][    C0] R10: 0000000000000008 R11: 0000000000000246 R12: 00000000ffffffff
[   30.579983][    C0] R13: 0000563dddabbf00 R14: 0000563dddb18240 R15: 0000563dddb155e0
| [   33.067247][    C1] INFO: lockdep is turned off.
| [   33.067404][    C1] Preemption disabled at:
| [ 33.067406][ C1] handle_softirqs (kernel/softirq.c:553) 
| [   33.067727][    C1] Tainted: [W]=WARN
[   33.067728][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.067730][    C1] Call Trace:
[   33.067733][    C1]  <TASK>
[ 33.067736][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 33.067745][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 33.067753][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 33.067757][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 33.067760][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 33.067766][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 33.067772][ 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) 
[ 33.067780][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 33.067782][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 33.067788][ 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) 
[ 33.067793][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 33.067796][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 33.067802][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 33.067806][ 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:2333) 
[ 33.067812][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 33.067816][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 33.067819][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 33.067824][ C1] ? kthread (kernel/kthread.c:464) 
[ 33.067828][ C1] ? ret_from_fork (arch/x86/kernel/process.c:153) 
[ 33.067833][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 33.067837][ C1] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2417) 
[ 33.067842][ C1] ? __pfx_migrate_enable (kernel/sched/core.c:2392) 
[ 33.067846][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 33.067851][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 33.067855][ C1] __put_net (net/core/net_namespace.c:732) 
[ 33.067860][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 33.067863][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 33.067866][ C1] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 33.067870][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 33.067874][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 33.067876][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 33.067883][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 33.067888][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 33.067892][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 33.067896][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 33.067899][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 33.067903][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 33.067907][ C1] kthread (kernel/kthread.c:464) 
[ 33.067909][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 33.067912][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 33.067915][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 33.067918][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 33.067921][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 33.067924][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 33.067927][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 33.067929][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   35.641371][    C2] INFO: lockdep is turned off.
| [   35.641564][    C2] Preemption disabled at:
| [ 35.641566][ C2] 0x0 
| [   35.641902][    C2] Tainted: [W]=WARN
[   35.641903][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.641906][    C2] Call Trace:
[   35.641908][    C2]  <IRQ>
[ 35.641911][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 35.641921][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 35.641929][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 35.641934][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 35.641936][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 35.641942][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 35.641948][ 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) 
[ 35.641956][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 35.641958][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 35.641964][ 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) 
[ 35.641969][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 35.641972][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 35.641978][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 35.641982][ 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:2333) 
[ 35.641988][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 35.641992][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 35.641994][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 35.642002][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 35.642007][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 35.642012][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 35.642015][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 35.642019][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 35.642022][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 35.642026][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 35.642029][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 35.642031][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 35.642036][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 35.642042][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 35.642048][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 35.642052][ C2] __put_net (net/core/net_namespace.c:732) 
[ 35.642055][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 35.642059][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 35.642061][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 35.642066][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 35.642069][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 35.642075][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 35.642082][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 35.642087][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 35.642092][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 35.642095][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 35.642098][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   35.642102][    C2]  </IRQ>
[   35.642103][    C2]  <TASK>
[ 35.642104][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 35.642107][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 35.642111][ C2] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   35.642114][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   35.642119][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9b3d7a19
[   35.642121][    C2] RDX: ffffed1006c2667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   35.642123][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c2667a
[   35.642124][    C2] R10: ffff8880361333d3 R11: ffffffff9ed738f8 R12: 0000000000000000
[   35.642126][    C2] R13: ffff888001bba340 R14: dffffc0000000000 R15: 0000000000000000
[ 35.642130][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 35.642133][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 35.642137][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 35.642140][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 35.642143][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 35.642146][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 35.642149][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 35.642154][ C2] do_idle (kernel/sched/idle.c:325) 
[ 35.642157][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 35.642160][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 35.642163][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 35.642167][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   39.483533][    C1] INFO: lockdep is turned off.
| [   39.483689][    C1] Preemption disabled at:
| [ 39.483691][ C1] handle_softirqs (kernel/softirq.c:553) 
| [   39.484019][    C1] Tainted: [W]=WARN
[   39.484021][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.484023][    C1] Call Trace:
[   39.484025][    C1]  <TASK>
[ 39.484027][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 39.484037][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 39.484045][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 39.484049][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 39.484052][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 39.484057][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 39.484064][ 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) 
[ 39.484071][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 39.484073][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 39.484079][ 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) 
[ 39.484084][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 39.484087][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 39.484093][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 39.484096][ 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:2333) 
[ 39.484103][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 39.484106][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 39.484109][ C1] ? smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 39.484115][ C1] ? kthread (kernel/kthread.c:464) 
[ 39.484119][ C1] ? ret_from_fork (arch/x86/kernel/process.c:153) 
[ 39.484125][ C1] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
[ 39.484129][ C1] ? migrate_enable (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:2417) 
[ 39.484134][ C1] ? __pfx_migrate_enable (kernel/sched/core.c:2392) 
[ 39.484137][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 39.484143][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 39.484147][ C1] __put_net (net/core/net_namespace.c:732) 
[ 39.484150][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 39.484154][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 39.484157][ C1] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 39.484161][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 39.484165][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 39.484168][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 39.484175][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 39.484180][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 39.484184][ C1] ? __pfx_run_ksoftirqd (kernel/softirq.c:961) 
[ 39.484188][ C1] run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
[ 39.484191][ C1] smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
[ 39.484195][ C1] ? __pfx_smpboot_thread_fn (kernel/smpboot.c:107) 
[ 39.484199][ C1] kthread (kernel/kthread.c:464) 
[ 39.484201][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 39.484204][ C1] ? ret_from_fork (arch/x86/kernel/process.c:152) 
[ 39.484206][ C1] ? __lock_release (kernel/locking/lockdep.c:5534) 
[ 39.484210][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 39.484212][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 39.484215][ C1] ret_from_fork (arch/x86/kernel/process.c:153) 
[ 39.484218][ C1] ? __pfx_kthread (kernel/kthread.c:413) 
[ 39.484220][ C1] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   43.520588][    C1] INFO: lockdep is turned off.
| [   43.520769][    C1] Preemption disabled at:
| [ 43.520771][ C1] 0x0 
| [   43.521312][    C1] Tainted: [W]=WARN
[   43.521314][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.521318][    C1] Call Trace:
[   43.521321][    C1]  <IRQ>
[ 43.521325][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 43.521340][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 43.521351][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 43.521358][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 43.521362][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 43.521370][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 43.521378][ 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) 
[ 43.521387][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 43.521392][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 43.521399][ 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) 
[ 43.521408][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 43.521413][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 43.521420][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 43.521426][ 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:2333) 
[ 43.521435][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 43.521449][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 43.521454][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 43.521463][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 43.521469][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 43.521476][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 43.521480][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 43.521485][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 43.521488][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 43.521494][ C1] ? do_idle (kernel/sched/idle.c:325) 
[ 43.521498][ C1] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 43.521502][ C1] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 43.521507][ C1] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 43.521515][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 43.521522][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 43.521529][ C1] __put_net (net/core/net_namespace.c:732) 
[ 43.521533][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 43.521539][ C1] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 43.521543][ C1] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 43.521550][ C1] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 43.521556][ C1] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 43.521565][ C1] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 43.521575][ C1] rcu_core (kernel/rcu/tree.c:2826) 
[ 43.521583][ C1] handle_softirqs (kernel/softirq.c:579) 
[ 43.521593][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 43.521598][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 43.521603][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   43.521609][    C1]  </IRQ>
[   43.521611][    C1]  <TASK>
[ 43.521613][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 43.521619][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 43.521625][ C1] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   43.521630][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[   43.521636][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff9b3d7a19
[   43.521640][    C1] RDX: ffffed1006c1667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   43.521644][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c1667a
[   43.521647][    C1] R10: ffff8880360b33d3 R11: ffff88800bc7cb58 R12: 0000000000000000
[   43.521650][    C1] R13: ffff888001bb8040 R14: dffffc0000000000 R15: 0000000000000000
[ 43.521655][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 43.521660][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 43.521666][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 43.521671][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 43.521674][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 43.521678][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 43.521684][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 43.521691][ C1] do_idle (kernel/sched/idle.c:325) 
[ 43.521696][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 43.521701][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 43.521706][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 43.521712][ C1] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   47.535477][    C0] INFO: lockdep is turned off.
| [   47.535690][    C0] Preemption disabled at:
| [ 47.535692][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [   47.536171][    C0] Tainted: [W]=WARN
[   47.536173][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.536175][    C0] Call Trace:
[   47.536177][    C0]  <IRQ>
[ 47.536179][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 47.536186][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 47.536196][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 47.536199][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 47.536202][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 47.536209][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 47.536215][ C0] ? 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) 
[ 47.536223][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 47.536225][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 47.536232][ C0] ? 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) 
[ 47.536237][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 47.536240][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 47.536246][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 47.536249][ C0] ? __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:2333) 
[ 47.536256][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 47.536260][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 47.536263][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 47.536271][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 47.536276][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 47.536282][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 47.536286][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 47.536289][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 47.536292][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 47.536297][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 47.536299][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 47.536302][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 47.536304][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 47.536312][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 47.536318][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 47.536322][ C0] __put_net (net/core/net_namespace.c:732) 
[ 47.536326][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 47.536329][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 47.536332][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 47.536336][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 47.536340][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 47.536346][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 47.536353][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 47.536359][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 47.536364][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 47.536367][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 47.536370][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   47.536373][    C0]  </IRQ>
[   47.536374][    C0]  <TASK>
[ 47.536375][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 47.536378][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 47.536382][ C0] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   47.536384][    C0] RSP: 0018:ffffffff9c007df8 EFLAGS: 00000246
[   47.536389][    C0] RAX: 0000000000000000 RBX: 1ffffffff3800fc3 RCX: ffffffff9b3d7a19
[   47.536391][    C0] RDX: ffffed1006c0667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   47.536393][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c0667a
[   47.536394][    C0] R10: ffff8880360333d3 R11: ffff888036027f4c R12: 0000000000000000
[   47.536396][    C0] R13: ffffffff9c01f240 R14: dffffc0000000000 R15: 0000000000014770
[ 47.536400][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 47.536404][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 47.536408][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 47.536411][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 47.536413][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 47.536416][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 47.536419][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 47.536426][ C0] do_idle (kernel/sched/idle.c:325) 
[ 47.536430][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 47.536433][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 47.536435][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 47.536439][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 47.536443][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 47.536447][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   50.982426][    C2] INFO: lockdep is turned off.
| [   50.982637][    C2] Preemption disabled at:
| [ 50.982639][ C2] 0x0 
| [   50.982999][    C2] Tainted: [W]=WARN
[   50.983001][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.983003][    C2] Call Trace:
[   50.983005][    C2]  <IRQ>
[ 50.983007][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 50.983018][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 50.983027][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 50.983031][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 50.983033][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 50.983039][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 50.983046][ 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) 
[ 50.983053][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 50.983056][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 50.983061][ 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) 
[ 50.983066][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 50.983069][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 50.983075][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 50.983078][ 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:2333) 
[ 50.983085][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 50.983088][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 50.983091][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 50.983098][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 50.983103][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 50.983108][ C2] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 50.983111][ C2] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 50.983115][ C2] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 50.983118][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 50.983122][ C2] ? do_idle (kernel/sched/idle.c:325) 
[ 50.983125][ C2] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 50.983127][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 50.983132][ C2] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 50.983138][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 50.983143][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 50.983147][ C2] __put_net (net/core/net_namespace.c:732) 
[ 50.983150][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 50.983154][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 50.983157][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 50.983161][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 50.983165][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 50.983169][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 50.983174][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 50.983179][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 50.983183][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 50.983185][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   50.983189][    C2]  </IRQ>
[   50.983190][    C2]  <TASK>
[ 50.983192][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 50.983195][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 50.983199][ C2] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   50.983202][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[   50.983207][    C2] RAX: 0000000000000002 RBX: 1ffff92000028fc1 RCX: ffffffff9b3d7a19
[   50.983209][    C2] RDX: ffffed1006c2667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   50.983211][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c2667a
[   50.983213][    C2] R10: ffff8880361333d3 R11: ffff888001ba4b58 R12: 0000000000000000
[   50.983215][    C2] R13: ffff888001bba340 R14: dffffc0000000000 R15: 0000000000000000
[ 50.983218][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 50.983222][ C2] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 50.983226][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 50.983229][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 50.983232][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 50.983239][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 50.983242][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 50.983247][ C2] do_idle (kernel/sched/idle.c:325) 
[ 50.983250][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 50.983253][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 50.983255][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 
[ 50.983260][ C2] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   53.325575][    C0] INFO: lockdep is turned off.
| [   53.325774][    C0] Preemption disabled at:
| [ 53.325776][ C0] schedule_preempt_disabled (kernel/sched/core.c:6919) 
| [   53.326223][    C0] Tainted: [W]=WARN
[   53.326224][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.326226][    C0] Call Trace:
[   53.326228][    C0]  <IRQ>
[ 53.326230][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 53.326240][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 53.326249][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 53.326253][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 53.326256][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 53.326262][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 53.326269][ C0] ? 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) 
[ 53.326276][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 53.326279][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 53.326286][ C0] ? 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) 
[ 53.326290][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 53.326293][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 53.326300][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 53.326303][ C0] ? __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:2333) 
[ 53.326310][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 53.326314][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 53.326317][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 53.326325][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 53.326331][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 53.326336][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 53.326339][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 53.326343][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 53.326346][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 53.326350][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 53.326353][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 53.326355][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 53.326357][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 53.326364][ C0] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 53.326370][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 53.326374][ C0] __put_net (net/core/net_namespace.c:732) 
[ 53.326378][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 53.326381][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 53.326383][ C0] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 53.326388][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 53.326392][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 53.326396][ C0] rcu_core (kernel/rcu/tree.c:2826) 
[ 53.326401][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 53.326407][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 53.326410][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 53.326413][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   53.326416][    C0]  </IRQ>
[   53.326417][    C0]  <TASK>
[ 53.326419][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 53.326421][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 53.326425][ C0] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   53.326427][    C0] RSP: 0000:ffffffff9c007df8 EFLAGS: 00000246
[   53.326431][    C0] RAX: 0000000000000000 RBX: 1ffffffff3800fc3 RCX: ffffffff9b3d7a19
[   53.326433][    C0] RDX: ffffed1006c0667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   53.326435][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c0667a
[   53.326437][    C0] R10: ffff8880360333d3 R11: ffff888001ba4b58 R12: 0000000000000000
[   53.326439][    C0] R13: ffffffff9c01f240 R14: dffffc0000000000 R15: 0000000000014770
[ 53.326443][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 53.326446][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 53.326450][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 53.326453][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 53.326456][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 53.326459][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 53.326462][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 53.326470][ C0] do_idle (kernel/sched/idle.c:325) 
[ 53.326473][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 53.326476][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 53.326479][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 53.326483][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:501) 
[ 53.326487][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:443 (discriminator 17)) 
[ 53.326491][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   56.662227][    C3] INFO: lockdep is turned off.
| [   56.662445][    C3] Preemption disabled at:
| [ 56.662447][ C3] 0x0 
| [   56.662827][    C3] Tainted: [W]=WARN
[   56.662828][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   56.662830][    C3] Call Trace:
[   56.662832][    C3]  <IRQ>
[ 56.662835][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 56.662843][ C3] __might_resched (kernel/sched/core.c:8819) 
[ 56.662850][ C3] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 56.662854][ C3] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 56.662856][ C3] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 56.662861][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 56.662866][ 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) 
[ 56.662872][ C3] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 56.662875][ C3] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 56.662879][ 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) 
[ 56.662884][ C3] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 56.662887][ C3] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 56.662892][ C3] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 56.662895][ 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:2333) 
[ 56.662900][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 56.662903][ C3] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 56.662906][ C3] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 56.662911][ C3] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 56.662916][ C3] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 56.662920][ C3] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 56.662923][ C3] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 56.662926][ C3] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 56.662928][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 56.662932][ C3] ? do_idle (kernel/sched/idle.c:325) 
[ 56.662934][ C3] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 56.662937][ C3] ? start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 56.662941][ C3] ? common_startup_64 (arch/x86/kernel/head_64.S:419) 
[ 56.662946][ C3] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 56.662950][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 56.662954][ C3] __put_net (net/core/net_namespace.c:732) 
[ 56.662957][ C3] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 56.662961][ C3] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 56.662963][ C3] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 56.662968][ C3] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 56.662971][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 56.662976][ C3] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 56.662981][ C3] rcu_core (kernel/rcu/tree.c:2826) 
[ 56.662986][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 56.662991][ C3] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 56.662994][ C3] irq_exit_rcu (kernel/softirq.c:698) 
[ 56.662996][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   56.663000][    C3]  </IRQ>
[   56.663001][    C3]  <TASK>
[ 56.663002][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 56.663005][ C3] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 56.663009][ C3] Code: 00 b2 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 a3 b0 0b 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	00 b2 00 c3 cc cc    	add    %dh,-0x33333d00(%rdx)
   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 a3 b0 0b 00 	verw   0xbb0a3(%rip)        # 0xbb0cb
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  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:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   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
[   56.663011][    C3] RSP: 0000:ffffc90000157de8 EFLAGS: 00000246
[   56.663015][    C3] RAX: 0000000000000003 RBX: 1ffff9200002afc1 RCX: ffffffff9b3d7a19
[   56.663018][    C3] RDX: ffffed1006c3667b RSI: ffffffff9b655c60 RDI: ffffffff98b871ef
[   56.663019][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c3667a
[   56.663021][    C3] R10: ffff8880361b33d3 R11: ffff888001d78558 R12: 0000000000000000
[   56.663023][    C3] R13: ffff888001bbc640 R14: dffffc0000000000 R15: 0000000000000000
[ 56.663027][ C3] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 56.663030][ C3] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 56.663034][ C3] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 56.663037][ C3] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 56.663039][ C3] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 56.663042][ C3] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 56.663046][ C3] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 56.663050][ C3] do_idle (kernel/sched/idle.c:325) 
[ 56.663053][ C3] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 56.663057][ C3] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 56.663059][ C3] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
handle_softirqs:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
schedule_preempt_disabled:dump_stack_lvl:__might_resched:down_write:simple_recursive_removal
__might_resched:down_write:simple_recursive_removal:debugfs_remove:ref_tracker_dir_exit