======================================
| [   16.084412][    C0] 1 lock held by swapper/0/0:
| [ 16.084629][ C0] #0: ffffffff881774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   16.085010][    C0]
| [   16.085010][    C0] stack backtrace:
[   16.085281][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.085283][    C0] Call Trace:
[   16.085284][    C0]  <IRQ>
[ 16.085286][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.085292][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 16.085297][ C0] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 16.085300][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 kernel/bpf/core.c:774) 
[ 16.085305][ C0] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 16.085309][ C0] ? save_trace (kernel/locking/lockdep.c:595) 
[ 16.085316][ C0] mark_lock (kernel/locking/lockdep.c:4756) 
[ 16.085320][ C0] mark_usage (kernel/locking/lockdep.c:4645) 
[ 16.085323][ C0] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 16.085326][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 16.085330][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 16.085333][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.085338][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.085342][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 16.085345][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.085349][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 16.085353][ C0] ? simple_pin_fs (fs/libfs.c:1067) 
[ 16.085356][ C0] simple_pin_fs (fs/libfs.c:1067) 
[ 16.085360][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 16.085363][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 16.085369][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.085372][ 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:2376) 
[ 16.085378][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.085381][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.085384][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.085387][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.085392][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.085396][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.085399][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.085402][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.085404][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.085408][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.085410][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.085412][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.085415][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.085421][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.085424][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.085428][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.085431][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.085434][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.085438][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.085441][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.085445][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.085448][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.085453][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.085457][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.085463][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.085466][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.085468][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.085472][    C0]  </IRQ>
[   16.085473][    C0]  <TASK>
[ 16.085475][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.085477][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.085482][ C0] Code: a2 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   16.085484][    C0] RSP: 0018:ffffffff87e07df8 EFLAGS: 00000246
[   16.085487][    C0] RAX: 000000000006c039 RBX: 1ffffffff0fc0fc3 RCX: ffffffff8718f5d9
[   16.085489][    C0] RDX: 0000000000000000 RSI: ffffffff87c8f4e4 RDI: ffffffff87453be0
[   16.085491][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ec66fa
[   16.085493][    C0] R10: ffff88802f6337d3 R11: ffffffff87e11288 R12: 0000000000000000
[   16.085494][    C0] R13: ffffffff87e1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.085498][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.085503][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.085506][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.085508][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.085511][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.085515][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.085520][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.085524][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.085527][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.085530][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.085534][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 16.085539][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 16.085543][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   16.105203][    C0] RCU nest depth: 0, expected: 0
| [   16.105416][    C0] INFO: lockdep is turned off.
| [   16.105626][    C0] Preemption disabled at:
| [ 16.105627][ C0] schedule_preempt_disabled (kernel/sched/core.c:6933) 
[   16.106222][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.106226][    C0] Call Trace:
[   16.106227][    C0]  <IRQ>
[ 16.106229][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 16.106234][ C0] __might_resched (kernel/sched/core.c:8796) 
[ 16.106241][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 16.106245][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 16.106248][ C0] ? simple_recursive_removal (fs/libfs.c:614) 
[ 16.106251][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 16.106256][ 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) 
[ 16.106262][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 16.106265][ 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) 
[ 16.106268][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 16.106273][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 16.106276][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 16.106282][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 16.106285][ 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:2376) 
[ 16.106290][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.106293][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 16.106296][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 16.106301][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 16.106305][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.106309][ C0] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.106312][ C0] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.106315][ C0] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.106317][ C0] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.106321][ C0] ? do_idle (kernel/sched/idle.c:325) 
[ 16.106323][ C0] ? cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.106325][ C0] ? rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.106328][ C0] ? start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.106335][ C0] __put_net (net/core/net_namespace.c:732) 
[ 16.106338][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 16.106342][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.106345][ C0] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 16.106348][ C0] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 16.106354][ C0] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 16.106357][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 16.106361][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 16.106364][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 16.106369][ C0] rcu_core (kernel/rcu/tree.c:2834) 
[ 16.106373][ C0] handle_softirqs (kernel/softirq.c:579) 
[ 16.106378][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 16.106381][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 16.106384][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   16.106388][    C0]  </IRQ>
[   16.106389][    C0]  <TASK>
[ 16.106390][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 16.106393][ C0] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 16.106397][ C0] Code: a2 b5 00 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 47 10 00 fb f4 <e9> fc 54 02 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	a2 b5 00 c3 cc cc cc 	movabs %al,0xfccccccccc300b5
   7:	cc 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 83 47 10 00 	verw   0x104783(%rip)        # 0x1047ab
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	e9 fc 54 02 00       	jmp    0x2552b		<-- trapping instruction
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	e9 fc 54 02 00       	jmp    0x25501
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   16.106400][    C0] RSP: 0018:ffffffff87e07df8 EFLAGS: 00000246
[   16.106403][    C0] RAX: 000000000006c039 RBX: 1ffffffff0fc0fc3 RCX: ffffffff8718f5d9
[   16.106405][    C0] RDX: 0000000000000000 RSI: ffffffff87c8f4e4 RDI: ffffffff87453be0
[   16.106406][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1005ec66fa
[   16.106408][    C0] R10: ffff88802f6337d3 R11: ffffffff87e11288 R12: 0000000000000000
[   16.106410][    C0] R13: ffffffff87e1f240 R14: dffffc0000000000 R15: 0000000000014770
[ 16.106414][ C0] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 16.106418][ C0] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 16.106421][ C0] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 16.106423][ C0] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 16.106426][ C0] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 16.106430][ C0] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 16.106435][ C0] do_idle (kernel/sched/idle.c:325) 
[ 16.106439][ C0] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 16.106442][ C0] rest_init (./include/linux/rcupdate.h:842 init/main.c:714) 
[ 16.106445][ C0] start_kernel (init/main.c:1049 (discriminator 1)) 
[ 16.106449][ C0] x86_64_start_reservations (arch/x86/kernel/head64.c:295) 
[ 16.106453][ C0] x86_64_start_kernel (arch/x86/kernel/head64.c:231 (discriminator 17)) 
[ 16.106457][ C0] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [   18.430647][    C2] INFO: lockdep is turned off.
| [   18.430869][    C2] Preemption disabled at:
| [ 18.430871][ C2] handle_softirqs (kernel/softirq.c:553) 
| [   18.431372][    C2] Tainted: [W]=WARN
[   18.431374][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.431376][    C2] Call Trace:
[   18.431379][    C2]  <IRQ>
[ 18.431381][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 18.431391][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 18.431399][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 18.431404][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 18.431407][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 18.431413][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.431419][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 18.431426][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 18.431429][ C2] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 18.431432][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 18.431439][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 18.431442][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 18.431449][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 18.431452][ C2] ? __sk_destruct (./include/linux/instrumented.h:96 ./include/linux/atomic/atomic-instrumented.h:400 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/net_namespace.h:287 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.431460][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.431464][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 18.431467][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 18.431471][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 18.431477][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.431482][ C2] ? kasan_check_range (mm/kasan/generic.c:190) 
[ 18.431487][ C2] ? trace_mm_page_free (./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:654 ./include/linux/cpumask.h:1210 ./include/trace/events/kmem.h:136) 
[ 18.431492][ C2] ? free_unref_folios (./include/linux/page-flags.h:643 mm/page_alloc.c:1190 mm/page_alloc.c:2774) 
[ 18.431497][ C2] ? folios_put_refs (mm/swap.c:992) 
[ 18.431503][ C2] ? free_pages_and_swap_cache (mm/swap_state.c:256) 
[ 18.431508][ C2] ? __tlb_batch_free_encoded_pages (mm/mmu_gather.c:137) 
[ 18.431512][ C2] ? tlb_finish_mmu (mm/mmu_gather.c:148 mm/mmu_gather.c:397 mm/mmu_gather.c:404 mm/mmu_gather.c:496) 
[ 18.431515][ C2] ? exit_mmap (mm/mmap.c:1304) 
[ 18.431520][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 18.431525][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.431530][ C2] __put_net (net/core/net_namespace.c:732) 
[ 18.431534][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 18.431538][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.431541][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 18.431545][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 18.431549][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.431552][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.431559][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 18.431563][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 18.431568][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 18.431571][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 18.431574][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   18.431578][    C2]  </IRQ>
[   18.431579][    C2]  <TASK>
[ 18.431580][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 18.431583][ C2] RIP: 0010:kasan_check_range (mm/kasan/generic.c:190) 
[ 18.431587][ C2] Code: 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 0f 84 4c ff ff ff 41 83 e2 07 49 39 d1 0f 85 34 ff ff ff 45 3a 11 0f 8d 2b ff ff ff <5b> b8 01 00 00 00 5d 41 5c e9 7c c4 09 02 41 bc 08 00 00 00 45 29
All code
========
   0:	00 74 f2 48          	add    %dh,0x48(%rdx,%rsi,8)
   4:	89 c2                	mov    %eax,%edx
   6:	b8 01 00 00 00       	mov    $0x1,%eax
   b:	48 85 d2             	test   %rdx,%rdx
   e:	0f 84 4c ff ff ff    	je     0xffffffffffffff60
  14:	41 83 e2 07          	and    $0x7,%r10d
  18:	49 39 d1             	cmp    %rdx,%r9
  1b:	0f 85 34 ff ff ff    	jne    0xffffffffffffff55
  21:	45 3a 11             	cmp    (%r9),%r10b
  24:	0f 8d 2b ff ff ff    	jge    0xffffffffffffff55
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	b8 01 00 00 00       	mov    $0x1,%eax
  30:	5d                   	pop    %rbp
  31:	41 5c                	pop    %r12
  33:	e9 7c c4 09 02       	jmp    0x209c4b4
  38:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  3e:	45                   	rex.RB
  3f:	29                   	.byte 0x29

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	b8 01 00 00 00       	mov    $0x1,%eax
   6:	5d                   	pop    %rbp
   7:	41 5c                	pop    %r12
   9:	e9 7c c4 09 02       	jmp    0x209c48a
   e:	41 bc 08 00 00 00    	mov    $0x8,%r12d
  14:	45                   	rex.RB
  15:	29                   	.byte 0x29
[   18.431589][    C2] RSP: 0018:ffffc90000a877c8 EFLAGS: 00000246
[   18.431593][    C2] RAX: fffffbfff117cd1b RBX: fffffbfff117cd1b RCX: ffffffff850734a1
[   18.431596][    C2] RDX: fffffbfff117cd1b RSI: 0000000000000008 RDI: ffffffff88be68d0
[   18.431597][    C2] RBP: fffffbfff117cd1a R08: 0000000000000000 R09: fffffbfff117cd1a
[   18.431599][    C2] R10: ffffffff88be68d7 R11: ffff88803fffacc8 R12: dffffc0000000000
[   18.431601][    C2] R13: ffffea00002cb200 R14: 0000000000000000 R15: 0000000000000000
[ 18.431605][ C2] ? trace_mm_page_free (./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:654 ./include/linux/cpumask.h:1210 ./include/trace/events/kmem.h:136) 
[ 18.431611][ C2] trace_mm_page_free (./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:654 ./include/linux/cpumask.h:1210 ./include/trace/events/kmem.h:136) 
[ 18.431616][ C2] free_unref_folios (./include/linux/page-flags.h:643 mm/page_alloc.c:1190 mm/page_alloc.c:2774) 
[ 18.431621][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.431625][ C2] folios_put_refs (mm/swap.c:992) 
[ 18.431630][ C2] ? __pfx_folios_put_refs (mm/swap.c:942) 
[ 18.431634][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.431637][ C2] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40) 
[ 18.431641][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 18.431647][ C2] free_pages_and_swap_cache (mm/swap_state.c:256) 
[ 18.431651][ C2] ? __pfx_free_pages_and_swap_cache (mm/swap_state.c:251) 
[ 18.431657][ C2] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 ./include/linux/atomic/atomic-arch-fallback.h:2170 ./include/linux/atomic/atomic-instrumented.h:1302 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) 
[ 18.431661][ C2] ? udpv6_recvmsg (./include/net/sock.h:705 net/ipv6/udp.c:486) 
[ 18.431672][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.431675][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 18.431682][ C2] ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745 ./include/trace/events/rcu.h:537) 
[ 18.431688][ C2] __tlb_batch_free_encoded_pages (mm/mmu_gather.c:137) 
[ 18.431692][ C2] tlb_finish_mmu (mm/mmu_gather.c:148 mm/mmu_gather.c:397 mm/mmu_gather.c:404 mm/mmu_gather.c:496) 
[ 18.431695][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 18.431699][ C2] exit_mmap (mm/mmap.c:1304) 
[ 18.431703][ C2] ? __pfx_exit_mmap (mm/mmap.c:1259) 
[ 18.431707][ C2] ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:727 kernel/locking/mutex.c:746) 
[ 18.431711][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 18.431715][ C2] ? __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) 
[ 18.431723][ C2] mmput (kernel/fork.c:1449 kernel/fork.c:1383 kernel/fork.c:1404) 
[ 18.431728][ C2] exit_mm (kernel/exit.c:596) 
[ 18.431734][ C2] do_exit (kernel/exit.c:950) 
[ 18.431739][ C2] do_group_exit (kernel/exit.c:1089) 
[ 18.431743][ C2] __x64_sys_exit_group (kernel/exit.c:1117) 
[ 18.431746][ C2] x64_sys_call (arch/x86/entry/syscall_64.c:37) 
[ 18.431753][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.431757][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.431759][    C2] RIP: 0033:0x7f144c17cabd
[ 18.431763][ C2] Code: Unable to access opcode bytes at 0x7f144c17ca93.

Code starting with the faulting instruction
===========================================
[   18.431765][    C2] RSP: 002b:00007ffce392dee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   18.431768][    C2] RAX: ffffffffffffffda RBX: 00007f144c2599c0 RCX: 00007f144c17cabd
[   18.431770][    C2] RDX: 00000000000000e7 RSI: ffffffffffffff80 RDI: 0000000000000000
[   18.431771][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000030
[   18.431773][    C2] R10: 00007ffce392dd70 R11: 0000000000000246 R12: 00007f144c2599c0


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