======================================
| [ 1033.646866][ C0] #3: ffffffff94775260 (rcu_read_lock){....}-{1:3}, at: 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) 
| [ 1033.647264][ C0] #4: ffffc90000007d60 ((&icsk->icsk_retransmit_timer)){+.-.}-{0:0}, at: call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
| [ 1033.647710][    C0]
| [ 1033.647710][    C0] stack backtrace:
[ 1033.647998][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1033.648001][    C0] Call Trace:
[ 1033.648003][    C0]  <IRQ>
[ 1033.648005][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1033.648013][ C0] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 1033.648017][ C0] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 1033.648024][ C0] mark_lock (kernel/locking/lockdep.c:4754) 
[ 1033.648028][ C0] mark_usage (kernel/locking/lockdep.c:4643) 
[ 1033.648031][ C0] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 1033.648036][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 1033.648040][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1033.648044][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.648049][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1033.648052][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1033.648056][ C0] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 1033.648059][ C0] ? simple_pin_fs (fs/libfs.c:1066) 
[ 1033.648062][ C0] simple_pin_fs (fs/libfs.c:1066) 
[ 1033.648065][ C0] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 1033.648068][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1033.648076][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1033.648079][ 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:2366) 
[ 1033.648085][ C0] ? call_timer_fn (kernel/time/timer.c:1790) 
[ 1033.648088][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1033.648091][ C0] ? handle_softirqs (kernel/softirq.c:580) 
[ 1033.648095][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1033.648098][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1033.648101][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1033.648106][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1033.648111][ C0] ? __orc_find (arch/x86/kernel/unwind_orc.c:109) 
[ 1033.648114][ C0] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:495) 
[ 1033.648117][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1033.648120][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1033.648124][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.648130][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.648136][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1033.648139][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 1033.648143][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1033.648150][ C0] call_timer_fn (kernel/time/timer.c:1790) 
[ 1033.648152][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1033.648155][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1033.648158][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1033.648163][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 1033.648167][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1033.648171][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1033.648176][ C0] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 23)) 
[ 1033.648181][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1033.648185][ C0] ? 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) 
[ 1033.648189][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1033.648192][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1033.648195][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1033.648199][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1033.648202][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1033.648205][ C0] handle_softirqs (kernel/softirq.c:580) 
[ 1033.648210][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1033.648213][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1033.648216][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1033.648219][    C0]  </IRQ>
[ 1033.648220][    C0]  <TASK>
[ 1033.648222][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1033.648225][ C0] RIP: 0010:__orc_find (arch/x86/kernel/unwind_orc.c:109) 
[ 1033.648229][ C0] Code: e2 07 83 c2 03 40 38 f2 7c 05 40 84 f6 75 4b 48 63 13 48 01 da 49 39 d5 73 af 4c 8d 63 fc 4c 39 e5 76 b2 4d 29 f7 49 c1 ff 02 <4b> 8d 14 7f 48 8d 04 50 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f
All code
========
   0:	e2 07                	loop   0x9
   2:	83 c2 03             	add    $0x3,%edx
   5:	40 38 f2             	cmp    %sil,%dl
   8:	7c 05                	jl     0xf
   a:	40 84 f6             	test   %sil,%sil
   d:	75 4b                	jne    0x5a
   f:	48 63 13             	movslq (%rbx),%rdx
  12:	48 01 da             	add    %rbx,%rdx
  15:	49 39 d5             	cmp    %rdx,%r13
  18:	73 af                	jae    0xffffffffffffffc9
  1a:	4c 8d 63 fc          	lea    -0x4(%rbx),%r12
  1e:	4c 39 e5             	cmp    %r12,%rbp
  21:	76 b2                	jbe    0xffffffffffffffd5
  23:	4d 29 f7             	sub    %r14,%r15
  26:	49 c1 ff 02          	sar    $0x2,%r15
  2a:*	4b 8d 14 7f          	lea    (%r15,%r15,2),%rdx		<-- trapping instruction
  2e:	48 8d 04 50          	lea    (%rax,%rdx,2),%rax
  32:	48 83 c4 08          	add    $0x8,%rsp
  36:	5b                   	pop    %rbx
  37:	5d                   	pop    %rbp
  38:	41 5c                	pop    %r12
  3a:	41 5d                	pop    %r13
  3c:	41 5e                	pop    %r14
  3e:	41 5f                	pop    %r15

Code starting with the faulting instruction
===========================================
   0:	4b 8d 14 7f          	lea    (%r15,%r15,2),%rdx
   4:	48 8d 04 50          	lea    (%rax,%rdx,2),%rax
   8:	48 83 c4 08          	add    $0x8,%rsp
   c:	5b                   	pop    %rbx
   d:	5d                   	pop    %rbp
   e:	41 5c                	pop    %r12
  10:	41 5d                	pop    %r13
  12:	41 5e                	pop    %r14
  14:	41 5f                	pop    %r15
[ 1033.648232][    C0] RSP: 0018:ffffc90003fe73e8 EFLAGS: 00000202
[ 1033.648236][    C0] RAX: ffffffff956b5cd8 RBX: ffffffff953261d4 RCX: dffffc0000000000
[ 1033.648238][    C0] RDX: ffffffff915598ba RSI: 0000000000000000 RDI: ffffffff953261a8
[ 1033.648240][    C0] RBP: ffffffff953261d8 R08: 0000000000000000 R09: ffffc90003fe7569
[ 1033.648241][    C0] R10: 0000000000000078 R11: ffffffff94775260 R12: ffffffff953261d4
[ 1033.648243][    C0] R13: ffffffff915598c1 R14: ffffffff953261a8 R15: 000000000000000b
[ 1033.648245][ C0] ? __create_object (mm/kmemleak.c:769) 
[ 1033.648252][ C0] ? __create_object (mm/kmemleak.c:764) 
[ 1033.648258][ C0] unwind_next_frame (arch/x86/kernel/unwind_orc.c:495) 
[ 1033.648261][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.648266][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1033.648270][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.648273][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 1033.648279][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1033.648282][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1033.648287][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.648291][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 1033.648294][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1033.648297][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 1033.648301][ C0] kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.648304][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.648307][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.648310][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1033.648313][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.648319][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.648323][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.648326][ C0] ? check_bytes_and_report (mm/slub.c:1212) 
[ 1033.648331][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 1033.648337][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 1033.648340][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1033.648343][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 1033.648348][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1033.648351][ C0] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 1033.648357][ C0] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 1033.648360][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.648366][ C0] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.648369][ C0] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1033.648373][ C0] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.648376][ C0] ? vm_area_dup (kernel/fork.c:488) 
[ 1033.648381][ C0] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.648385][ C0] __create_object (mm/kmemleak.c:770) 
[ 1033.648389][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.648393][ C0] ? dup_mmap (kernel/fork.c:643) 
[ 1033.648397][ C0] vm_area_dup (kernel/fork.c:488) 
[ 1033.648400][ C0] dup_mmap (kernel/fork.c:668) 
[ 1033.648404][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 1033.648409][ C0] ? __pfx_dup_mmap (kernel/fork.c:609) 
[ 1033.648414][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.648420][ C0] copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 1033.648424][ C0] copy_process (kernel/fork.c:2430) 
[ 1033.648431][ C0] ? __pfx_copy_process (kernel/fork.c:2179) 
[ 1033.648435][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1033.648440][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 1033.648445][ C0] kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 1033.648449][ C0] ? __pfx_kernel_clone (kernel/fork.c:2805) 
[ 1033.648453][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 1033.648460][ C0] __do_sys_clone (kernel/fork.c:2977) 
[ 1033.648463][ C0] ? __pfx___do_sys_clone (kernel/fork.c:2977) 
[ 1033.648466][ C0] ? __might_fault (mm/memory.c:7151 mm/memory.c:7145) 
[ 1033.648474][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.648477][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 1033.648482][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 1033.648485][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1033.648489][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1033.648492][    C0] RIP: 0033:0x7f10be164a47
[ 1033.648496][ C0] Code: 00 00 00 f3 0f 1e fa 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 39 41 89 c0 85 c0 75 2a 64 48 8b 04 25 10 00
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	64 48 8b 04 25 10 00 	mov    %fs:0x10,%rax
   e:	00 00 
  10:	45 31 c0             	xor    %r8d,%r8d
  13:	31 d2                	xor    %edx,%edx
  15:	31 f6                	xor    %esi,%esi
  17:	bf 11 00 20 01       	mov    $0x1200011,%edi
  1c:	4c 8d 90 d0 02 00 00 	lea    0x2d0(%rax),%r10
  23:	b8 38 00 00 00       	mov    $0x38,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 39                	ja     0x6b
  32:	41 89 c0             	mov    %eax,%r8d
  35:	85 c0                	test   %eax,%eax
  37:	75 2a                	jne    0x63
  39:	64                   	fs
  3a:	48                   	rex.W
  3b:	8b                   	.byte 0x8b
  3c:	04 25                	add    $0x25,%al
  3e:	10 00                	adc    %al,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 39                	ja     0x41
   8:	41 89 c0             	mov    %eax,%r8d
   b:	85 c0                	test   %eax,%eax
   d:	75 2a                	jne    0x39
   f:	64                   	fs
  10:	48                   	rex.W
  11:	8b                   	.byte 0x8b
  12:	04 25                	add    $0x25,%al
  14:	10 00                	adc    %al,(%rax)
[ 1033.648498][    C0] RSP: 002b:00007fffaecff498 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[ 1033.648501][    C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f10be164a47
[ 1033.648503][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[ 1033.648505][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 006c6c616c6c696b
[ 1033.648506][    C0] R10: 00007f10be049a10 R11: 0000000000000246 R12: 0000000000000000
[ 1033.648508][    C0] R13: 00007fffaecff5d0 R14: 0000557108e22f27 R15: 0000557145b2eb20
| [ 1033.688669][    C0] RCU nest depth: 1, expected: 0
| [ 1033.688894][    C0] INFO: lockdep is turned off.
| [ 1033.689119][    C0] Preemption disabled at:
| [ 1033.689120][ C0] handle_softirqs (kernel/softirq.c:553) 
[ 1033.689582][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1033.689584][    C0] Call Trace:
[ 1033.689586][    C0]  <IRQ>
[ 1033.689588][ C0] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1033.689596][ C0] __might_resched (kernel/sched/core.c:8819) 
[ 1033.689605][ C0] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1033.689610][ C0] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1033.689612][ C0] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1033.689619][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.689625][ 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) 
[ 1033.689632][ C0] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1033.689635][ C0] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1033.689641][ 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) 
[ 1033.689646][ C0] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1033.689651][ C0] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1033.689659][ C0] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1033.689662][ 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:2366) 
[ 1033.689668][ C0] ? call_timer_fn (kernel/time/timer.c:1790) 
[ 1033.689673][ C0] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1033.689676][ C0] ? handle_softirqs (kernel/softirq.c:580) 
[ 1033.689679][ C0] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1033.689682][ C0] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1033.689685][ C0] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1033.689691][ C0] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1033.689696][ C0] ? __orc_find (arch/x86/kernel/unwind_orc.c:109) 
[ 1033.689701][ C0] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:495) 
[ 1033.689704][ C0] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1033.689707][ C0] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1033.689710][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.689717][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.689722][ C0] __put_net (net/core/net_namespace.c:732) 
[ 1033.689725][ C0] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 1033.689729][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1033.689736][ C0] call_timer_fn (kernel/time/timer.c:1790) 
[ 1033.689738][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1033.689740][ C0] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1033.689743][ C0] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1033.689748][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 1033.689753][ C0] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1033.689757][ C0] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1033.689762][ C0] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 23)) 
[ 1033.689767][ C0] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1033.689772][ C0] ? 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) 
[ 1033.689775][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1033.689779][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1033.689782][ C0] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1033.689786][ C0] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1033.689789][ C0] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1033.689792][ C0] handle_softirqs (kernel/softirq.c:580) 
[ 1033.689797][ C0] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1033.689800][ C0] irq_exit_rcu (kernel/softirq.c:698) 
[ 1033.689803][ C0] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1033.689807][    C0]  </IRQ>
[ 1033.689808][    C0]  <TASK>
[ 1033.689810][ C0] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1033.689812][ C0] RIP: 0010:__orc_find (arch/x86/kernel/unwind_orc.c:109) 
[ 1033.689816][ C0] Code: e2 07 83 c2 03 40 38 f2 7c 05 40 84 f6 75 4b 48 63 13 48 01 da 49 39 d5 73 af 4c 8d 63 fc 4c 39 e5 76 b2 4d 29 f7 49 c1 ff 02 <4b> 8d 14 7f 48 8d 04 50 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f
All code
========
   0:	e2 07                	loop   0x9
   2:	83 c2 03             	add    $0x3,%edx
   5:	40 38 f2             	cmp    %sil,%dl
   8:	7c 05                	jl     0xf
   a:	40 84 f6             	test   %sil,%sil
   d:	75 4b                	jne    0x5a
   f:	48 63 13             	movslq (%rbx),%rdx
  12:	48 01 da             	add    %rbx,%rdx
  15:	49 39 d5             	cmp    %rdx,%r13
  18:	73 af                	jae    0xffffffffffffffc9
  1a:	4c 8d 63 fc          	lea    -0x4(%rbx),%r12
  1e:	4c 39 e5             	cmp    %r12,%rbp
  21:	76 b2                	jbe    0xffffffffffffffd5
  23:	4d 29 f7             	sub    %r14,%r15
  26:	49 c1 ff 02          	sar    $0x2,%r15
  2a:*	4b 8d 14 7f          	lea    (%r15,%r15,2),%rdx		<-- trapping instruction
  2e:	48 8d 04 50          	lea    (%rax,%rdx,2),%rax
  32:	48 83 c4 08          	add    $0x8,%rsp
  36:	5b                   	pop    %rbx
  37:	5d                   	pop    %rbp
  38:	41 5c                	pop    %r12
  3a:	41 5d                	pop    %r13
  3c:	41 5e                	pop    %r14
  3e:	41 5f                	pop    %r15

Code starting with the faulting instruction
===========================================
   0:	4b 8d 14 7f          	lea    (%r15,%r15,2),%rdx
   4:	48 8d 04 50          	lea    (%rax,%rdx,2),%rax
   8:	48 83 c4 08          	add    $0x8,%rsp
   c:	5b                   	pop    %rbx
   d:	5d                   	pop    %rbp
   e:	41 5c                	pop    %r12
  10:	41 5d                	pop    %r13
  12:	41 5e                	pop    %r14
  14:	41 5f                	pop    %r15
[ 1033.689820][    C0] RSP: 0018:ffffc90003fe73e8 EFLAGS: 00000202
[ 1033.689823][    C0] RAX: ffffffff956b5cd8 RBX: ffffffff953261d4 RCX: dffffc0000000000
[ 1033.689826][    C0] RDX: ffffffff915598ba RSI: 0000000000000000 RDI: ffffffff953261a8
[ 1033.689828][    C0] RBP: ffffffff953261d8 R08: 0000000000000000 R09: ffffc90003fe7569
[ 1033.689829][    C0] R10: 0000000000000078 R11: ffffffff94775260 R12: ffffffff953261d4
[ 1033.689831][    C0] R13: ffffffff915598c1 R14: ffffffff953261a8 R15: 000000000000000b
[ 1033.689833][ C0] ? __create_object (mm/kmemleak.c:769) 
[ 1033.689842][ C0] ? __create_object (mm/kmemleak.c:764) 
[ 1033.689848][ C0] unwind_next_frame (arch/x86/kernel/unwind_orc.c:495) 
[ 1033.689851][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.689856][ C0] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1033.689860][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.689863][ C0] ? kernel_text_address (kernel/extable.c:99) 
[ 1033.689868][ C0] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1033.689871][ C0] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1033.689876][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.689880][ C0] stack_trace_save (kernel/stacktrace.c:123) 
[ 1033.689883][ C0] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1033.689886][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 1033.689890][ C0] kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.689894][ C0] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 1033.689897][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.689900][ C0] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1033.689903][ C0] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.689908][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.689911][ C0] ? __create_object (mm/kmemleak.c:770) 
[ 1033.689915][ C0] ? check_bytes_and_report (mm/slub.c:1212) 
[ 1033.689920][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 1033.689925][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 1033.689929][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 1033.689934][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 1033.689938][ C0] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1033.689941][ C0] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 1033.689946][ C0] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 1033.689950][ C0] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.689955][ C0] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 1033.689959][ C0] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 1033.689963][ C0] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.689966][ C0] ? vm_area_dup (kernel/fork.c:488) 
[ 1033.689972][ C0] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1033.689976][ C0] __create_object (mm/kmemleak.c:770) 
[ 1033.689981][ C0] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 1033.689984][ C0] ? dup_mmap (kernel/fork.c:643) 
[ 1033.689989][ C0] vm_area_dup (kernel/fork.c:488) 
[ 1033.689992][ C0] dup_mmap (kernel/fork.c:668) 
[ 1033.689996][ C0] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 1033.690001][ C0] ? __pfx_dup_mmap (kernel/fork.c:609) 
[ 1033.690007][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.690012][ C0] copy_mm (kernel/fork.c:1736 kernel/fork.c:1787) 
[ 1033.690016][ C0] copy_process (kernel/fork.c:2430) 
[ 1033.690023][ C0] ? __pfx_copy_process (kernel/fork.c:2179) 
[ 1033.690028][ C0] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 1033.690033][ C0] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 1033.690038][ C0] kernel_clone (./include/linux/random.h:26 kernel/fork.c:2846) 
[ 1033.690042][ C0] ? __pfx_kernel_clone (kernel/fork.c:2805) 
[ 1033.690045][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 1033.690052][ C0] __do_sys_clone (kernel/fork.c:2977) 
[ 1033.690056][ C0] ? __pfx___do_sys_clone (kernel/fork.c:2977) 
[ 1033.690059][ C0] ? __might_fault (mm/memory.c:7151 mm/memory.c:7145) 
[ 1033.690067][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1033.690070][ C0] ? do_syscall_64 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/entry-common.h:198 arch/x86/entry/syscall_64.c:90) 
[ 1033.690074][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 1033.690077][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1033.690081][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1033.690084][    C0] RIP: 0033:0x7f10be164a47
[ 1033.690087][ C0] Code: 00 00 00 f3 0f 1e fa 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 39 41 89 c0 85 c0 75 2a 64 48 8b 04 25 10 00
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	64 48 8b 04 25 10 00 	mov    %fs:0x10,%rax
   e:	00 00 
  10:	45 31 c0             	xor    %r8d,%r8d
  13:	31 d2                	xor    %edx,%edx
  15:	31 f6                	xor    %esi,%esi
  17:	bf 11 00 20 01       	mov    $0x1200011,%edi
  1c:	4c 8d 90 d0 02 00 00 	lea    0x2d0(%rax),%r10
  23:	b8 38 00 00 00       	mov    $0x38,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 39                	ja     0x6b
  32:	41 89 c0             	mov    %eax,%r8d
  35:	85 c0                	test   %eax,%eax
  37:	75 2a                	jne    0x63
  39:	64                   	fs
  3a:	48                   	rex.W
  3b:	8b                   	.byte 0x8b
  3c:	04 25                	add    $0x25,%al
  3e:	10 00                	adc    %al,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 39                	ja     0x41
   8:	41 89 c0             	mov    %eax,%r8d
   b:	85 c0                	test   %eax,%eax
   d:	75 2a                	jne    0x39
   f:	64                   	fs
  10:	48                   	rex.W
  11:	8b                   	.byte 0x8b
  12:	04 25                	add    $0x25,%al
  14:	10 00                	adc    %al,(%rax)
[ 1033.690090][    C0] RSP: 002b:00007fffaecff498 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
[ 1033.690092][    C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f10be164a47
[ 1033.690094][    C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[ 1033.690096][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 006c6c616c6c696b
[ 1033.690097][    C0] R10: 00007f10be049a10 R11: 0000000000000246 R12: 0000000000000000
[ 1033.690099][    C0] R13: 00007fffaecff5d0 R14: 0000557108e22f27 R15: 0000557145b2eb20
| [ 1062.310009][    C2] INFO: lockdep is turned off.
| [ 1062.310236][    C2] Preemption disabled at:
| [ 1062.310238][ C2] handle_softirqs (kernel/softirq.c:553) 
| [ 1062.310720][    C2] Tainted: [W]=WARN
[ 1062.310721][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1062.310724][    C2] Call Trace:
[ 1062.310727][    C2]  <IRQ>
[ 1062.310729][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1062.310737][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 1062.310746][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1062.310751][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1062.310754][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1062.310760][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.310766][ 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) 
[ 1062.310773][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1062.310776][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1062.310783][ 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) 
[ 1062.310788][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1062.310791][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1062.310798][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1062.310802][ 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:2366) 
[ 1062.310808][ C2] ? call_timer_fn (kernel/time/timer.c:1790) 
[ 1062.310813][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1062.310816][ C2] ? handle_softirqs (kernel/softirq.c:580) 
[ 1062.310819][ C2] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1062.310822][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1062.310825][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1062.310830][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1062.310834][ C2] ? unwind_next_frame (arch/x86/kernel/unwind_orc.c:591) 
[ 1062.310840][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1062.310844][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1062.310847][ C2] ? set_track_prepare (mm/slub.c:936) 
[ 1062.310854][ C2] ? __alloc_object (mm/kmemleak.c:697) 
[ 1062.310857][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 1062.310861][ C2] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1062.310868][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.310872][ C2] __put_net (net/core/net_namespace.c:732) 
[ 1062.310876][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 1062.310879][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1062.310887][ C2] call_timer_fn (kernel/time/timer.c:1790) 
[ 1062.310889][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1062.310892][ C2] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1062.310894][ C2] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1062.310897][ C2] ? nohz_balance_exit_idle (kernel/sched/fair.c:12483) 
[ 1062.310904][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.310908][ C2] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1062.310912][ C2] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1062.310917][ C2] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1062.310920][ C2] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 21)) 
[ 1062.310925][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1062.310928][ 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) 
[ 1062.310932][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1062.310936][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1062.310939][ C2] ? run_timer_base (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1062.310944][ C2] run_timer_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
[ 1062.310947][ C2] run_timer_softirq (kernel/time/timer.c:2446) 
[ 1062.310949][ C2] handle_softirqs (kernel/softirq.c:580) 
[ 1062.310955][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1062.310958][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 1062.310961][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1062.310965][    C2]  </IRQ>
[ 1062.310966][    C2]  <TASK>
[ 1062.310967][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1062.310970][ C2] RIP: 0010:unwind_next_frame (arch/x86/kernel/unwind_orc.c:591) 
[ 1062.310974][ C2] Code: 85 8b 11 00 00 48 8b 14 24 49 89 45 58 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 23 11 00 00 48 8b 44 24 28 <48> 8b 54 24 08 49 89 45 48 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff
All code
========
   0:	85 8b 11 00 00 48    	test   %ecx,0x48000011(%rbx)
   6:	8b 14 24             	mov    (%rsp),%edx
   9:	49 89 45 58          	mov    %rax,0x58(%r13)
   d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  14:	fc ff df 
  17:	48 c1 ea 03          	shr    $0x3,%rdx
  1b:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
  1f:	0f 85 23 11 00 00    	jne    0x1148
  25:	48 8b 44 24 28       	mov    0x28(%rsp),%rax
  2a:*	48 8b 54 24 08       	mov    0x8(%rsp),%rdx		<-- trapping instruction
  2f:	49 89 45 48          	mov    %rax,0x48(%r13)
  33:	48 c1 ea 03          	shr    $0x3,%rdx
  37:	48                   	rex.W
  38:	b8 00 00 00 00       	mov    $0x0,%eax
  3d:	00 fc                	add    %bh,%ah
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	48 8b 54 24 08       	mov    0x8(%rsp),%rdx
   5:	49 89 45 48          	mov    %rax,0x48(%r13)
   9:	48 c1 ea 03          	shr    $0x3,%rdx
   d:	48                   	rex.W
   e:	b8 00 00 00 00       	mov    $0x0,%eax
  13:	00 fc                	add    %bh,%ah
  15:	ff                   	.byte 0xff
[ 1062.310977][    C2] RSP: 0018:ffffc900068972d0 EFLAGS: 00000246
[ 1062.310981][    C2] RAX: ffffc90006897508 RBX: 1ffff92000d12e63 RCX: 1ffff92000d12e85
[ 1062.310984][    C2] RDX: 1ffff92000d12e83 RSI: ffffc90006897400 RDI: ffff88800969c640
[ 1062.310986][    C2] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc90006897411
[ 1062.310987][    C2] R10: ffffffff90c0e3f7 R11: ffffc90006897410 R12: ffffc90006897428
[ 1062.310989][    C2] R13: ffffc900068973d0 R14: ffffffff9560fef8 R15: ffffc90006897500
[ 1062.310992][ C2] ? 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) 
[ 1062.310998][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1062.311001][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 1062.311005][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 1062.311009][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 1062.311013][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 1062.311015][ C2] ? kernel_text_address (kernel/extable.c:99) 
[ 1062.311019][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 1062.311023][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 1062.311027][ C2] ? set_track_prepare (mm/slub.c:936) 
[ 1062.311032][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 1062.311034][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 1062.311039][ C2] set_track_prepare (mm/slub.c:936) 
[ 1062.311043][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.311046][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 1062.311049][ C2] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 1062.311054][ C2] __alloc_object (mm/kmemleak.c:697) 
[ 1062.311058][ C2] __create_object (mm/kmemleak.c:770) 
[ 1062.311062][ C2] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 1062.311065][ C2] ? mas_wr_store_type (lib/maple_tree.c:806 lib/maple_tree.c:819 lib/maple_tree.c:3530 lib/maple_tree.c:4203) 
[ 1062.311072][ C2] mas_alloc_nodes (lib/maple_tree.c:176 lib/maple_tree.c:1249) 
[ 1062.311076][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1062.311081][ C2] mas_preallocate (./include/linux/maple_tree.h:562 lib/maple_tree.c:5502) 
[ 1062.311083][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.311087][ C2] ? __pfx_mas_preallocate (lib/maple_tree.c:5490) 
[ 1062.311089][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 1062.311097][ C2] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 1062.311101][ C2] __split_vma (mm/vma.c:490) 
[ 1062.311107][ C2] ? __pfx___split_vma (mm/vma.c:463) 
[ 1062.311112][ C2] ? __pfx_mas_prev (lib/maple_tree.c:5830) 
[ 1062.311117][ C2] vms_gather_munmap_vmas (mm/vma.c:1337) 
[ 1062.311122][ C2] __mmap_prepare (mm/vma.c:2304) 
[ 1062.311125][ C2] ? vma_set_page_prot (mm/mmap.c:87) 
[ 1062.311133][ C2] __mmap_region (mm/vma.c:2507) 
[ 1062.311138][ C2] ? __pfx___mmap_region (mm/vma.c:2499) 
[ 1062.311143][ C2] ? mas_find (lib/maple_tree.c:6016) 
[ 1062.311159][ C2] ? mm_get_unmapped_area_vmflags (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 mm/mmap.c:808) 
[ 1062.311164][ C2] ? mmap_region (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/mman.h:202 mm/vma.c:2581) 
[ 1062.311168][ C2] do_mmap (mm/mmap.c:561) 
[ 1062.311173][ C2] ? __pfx_do_mmap (mm/mmap.c:342) 
[ 1062.311175][ C2] ? down_write_killable (./arch/x86/include/asm/preempt.h:104 kernel/locking/rwsem.c:1307 kernel/locking/rwsem.c:1318 kernel/locking/rwsem.c:1590) 
[ 1062.311178][ C2] ? __pfx_down_write_killable (kernel/locking/rwsem.c:1586) 
[ 1062.311182][ C2] vm_mmap_pgoff (mm/util.c:579) 
[ 1062.311189][ C2] ? __pfx_vm_mmap_pgoff (mm/util.c:567) 
[ 1062.311192][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5879) 
[ 1062.311195][ C2] ? __fget_files (fs/file.c:1060) 
[ 1062.311200][ C2] ksys_mmap_pgoff (mm/mmap.c:607) 
[ 1062.311204][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1062.311208][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 1062.311213][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 1062.311215][    C2] RIP: 0033:0x7f42625f9116
[ 1062.311220][ C2] Code: 5d 41 5c c3 f3 0f 1e fa 41 f7 c1 ff 0f 00 00 75 2b 55 48 89 fd 53 89 cb 48 85 ff 74 37 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 62 5b 5d c3 0f 1f 80 00 00 00 00 c7 05 ae f0
All code
========
   0:	5d                   	pop    %rbp
   1:	41 5c                	pop    %r12
   3:	c3                   	ret
   4:	f3 0f 1e fa          	endbr64
   8:	41 f7 c1 ff 0f 00 00 	test   $0xfff,%r9d
   f:	75 2b                	jne    0x3c
  11:	55                   	push   %rbp
  12:	48 89 fd             	mov    %rdi,%rbp
  15:	53                   	push   %rbx
  16:	89 cb                	mov    %ecx,%ebx
  18:	48 85 ff             	test   %rdi,%rdi
  1b:	74 37                	je     0x54
  1d:	41 89 da             	mov    %ebx,%r10d
  20:	48 89 ef             	mov    %rbp,%rdi
  23:	b8 09 00 00 00       	mov    $0x9,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 62                	ja     0x94
  32:	5b                   	pop    %rbx
  33:	5d                   	pop    %rbp
  34:	c3                   	ret
  35:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  3c:	c7                   	.byte 0xc7
  3d:	05                   	.byte 0x5
  3e:	ae                   	scas   %es:(%rdi),%al
  3f:	f0                   	lock

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 62                	ja     0x6a
   8:	5b                   	pop    %rbx
   9:	5d                   	pop    %rbp
   a:	c3                   	ret
   b:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  12:	c7                   	.byte 0xc7
  13:	05                   	.byte 0x5
  14:	ae                   	scas   %es:(%rdi),%al
  15:	f0                   	lock
[ 1062.311222][    C2] RSP: 002b:00007ffd2e2197d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
[ 1062.311225][    C2] RAX: ffffffffffffffda RBX: 0000000000000812 RCX: 00007f42625f9116
[ 1062.311227][    C2] RDX: 0000000000000001 RSI: 0000000000017000 RDI: 00007f426241e000
[ 1062.311228][    C2] RBP: 00007f426241e000 R08: 0000000000000005 R09: 0000000000090000
[ 1062.311230][    C2] R10: 0000000000000812 R11: 0000000000000206 R12: 00007ffd2e219850
[ 1062.311232][    C2] R13: 00007ffd2e219bf0 R14: 0000000000000000 R15: 00007f4262486a00
| [ 1131.943648][    C1] INFO: lockdep is turned off.
| [ 1131.943958][    C1] Preemption disabled at:
| [ 1131.943961][ C1] 0x0 
| [ 1131.944490][    C1] Tainted: [W]=WARN
[ 1131.944492][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1131.944495][    C1] Call Trace:
[ 1131.944499][    C1]  <IRQ>
[ 1131.944504][ C1] dump_stack_lvl (lib/dump_stack.c:123) 
[ 1131.944518][ C1] __might_resched (kernel/sched/core.c:8819) 
[ 1131.944533][ C1] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 1131.944540][ C1] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 1131.944545][ C1] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 1131.944554][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1131.944564][ 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) 
[ 1131.944575][ C1] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 1131.944579][ C1] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 1131.944589][ 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) 
[ 1131.944598][ C1] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 1131.944603][ C1] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 1131.944613][ C1] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 1131.944618][ 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:2366) 
[ 1131.944627][ C1] ? call_timer_fn (kernel/time/timer.c:1790) 
[ 1131.944635][ C1] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 1131.944640][ C1] ? tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1131.944647][ C1] ? __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1131.944655][ C1] ? tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1131.944658][ C1] ? handle_softirqs (kernel/softirq.c:580) 
[ 1131.944668][ C1] ? __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1131.944673][ C1] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 1131.944678][ C1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1131.944686][ C1] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1131.944692][ C1] ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1131.944696][ C1] ? default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1131.944701][ C1] ? default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1131.944705][ C1] ? bpf_sk_storage_free (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/bpf_sk_storage.c:61) 
[ 1131.944714][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1131.944722][ C1] __put_net (net/core/net_namespace.c:732) 
[ 1131.944728][ C1] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2366) 
[ 1131.944733][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1131.944742][ C1] call_timer_fn (kernel/time/timer.c:1790) 
[ 1131.944747][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1131.944750][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1131.944756][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1131.944765][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1131.944773][ C1] __run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
[ 1131.944779][ C1] ? __pfx_tcp_write_timer (net/ipv4/tcp_timer.c:727) 
[ 1131.944788][ C1] ? __pfx___run_timers (kernel/time/timer.c:2385) 
[ 1131.944795][ C1] ? 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) 
[ 1131.944802][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1131.944808][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1131.944813][ C1] ? timer_expire_remote (kernel/time/timer.c:2426 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1131.944823][ C1] timer_expire_remote (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2177) 
[ 1131.944828][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/time/timer_migration.c:961) 
[ 1131.944835][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:905) 
[ 1131.944840][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1131.944844][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1779) 
[ 1131.944849][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1766) 
[ 1131.944854][ C1] ? 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) 
[ 1131.944860][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) 
[ 1131.944868][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1131.944875][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1038) 
[ 1131.944881][ C1] ? __pfx_tmigr_handle_remote_up (kernel/time/timer_migration.c:1005) 
[ 1131.944886][ C1] __walk_groups.isra.0 (kernel/time/timer_migration.c:533) 
[ 1131.944895][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:1096) 
[ 1131.944901][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1059) 
[ 1131.944905][ C1] ? 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) 
[ 1131.944911][ C1] ? spin_bug (kernel/locking/spinlock_debug.c:79) 
[ 1131.944917][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 1131.944924][ C1] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 1131.944931][ C1] handle_softirqs (kernel/softirq.c:580) 
[ 1131.944940][ C1] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 1131.944944][ C1] irq_exit_rcu (kernel/softirq.c:698) 
[ 1131.944948][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 1131.944951][    C1]  </IRQ>
[ 1131.944953][    C1]  <TASK>
[ 1131.944955][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 1131.944958][ C1] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 1131.944963][ C1] Code: a0 d1 00 e9 c3 57 02 00 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 c3 45 2b 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:	a0 d1 00 e9 c3 57 02 	movabs 0xf000257c3e900d1,%al
   7:	00 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 c3 45 2b 00 	verw   0x2b45c3(%rip)        # 0x2b45eb
  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
[ 1131.944966][    C1] RSP: 0018:ffffc90000137de8 EFLAGS: 00000246
[ 1131.944970][    C1] RAX: 0000000000000001 RBX: 1ffff92000026fc1 RCX: ffffffff935dea19
[ 1131.944973][    C1] RDX: ffffed1006c1667b RSI: ffffffff93a561e0 RDI: ffffffff90d8879f
[ 1131.944975][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed1006c1667a
[ 1131.944977][    C1] R10: ffff8880360b33d3 R11: ffff8880360a7f4c R12: 0000000000000000
[ 1131.944979][    C1] R13: ffff888001bf0040 R14: dffffc0000000000 R15: 0000000000000000
[ 1131.944984][ C1] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 1131.944989][ C1] ? cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1131.944997][ C1] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 1131.945001][ C1] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 1131.945004][ C1] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 1131.945010][ C1] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 1131.945016][ C1] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 1131.945025][ C1] do_idle (kernel/sched/idle.c:325) 
[ 1131.945030][ C1] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 1131.945035][ C1] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 1131.945040][ C1] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


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