======================================
| [ 13.613976][ C2] #1: ffffffff8c9745a0 (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) 
| [ 13.614384][ C2] #2: ffffffff8c974480 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2562) 
| [   13.614849][    C2]
| [   13.614849][    C2] stack backtrace:
[   13.615251][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.615255][    C2] Call Trace:
[   13.615259][    C2]  <IRQ>
[ 13.615261][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.615272][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4046) 
[ 13.615281][ C2] mark_lock_irq (kernel/locking/lockdep.c:4011 kernel/locking/lockdep.c:4057 kernel/locking/lockdep.c:4268) 
[ 13.615288][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.615293][ C2] ? save_trace (kernel/locking/lockdep.c:594) 
[ 13.615303][ C2] mark_lock (kernel/locking/lockdep.c:4754) 
[ 13.615309][ C2] mark_usage (kernel/locking/lockdep.c:4643) 
[ 13.615314][ C2] __lock_acquire (kernel/locking/lockdep.c:5189) 
[ 13.615323][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:472 kernel/locking/lockdep.c:5868) 
[ 13.615327][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.615335][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.615341][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 13.615345][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.615351][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 13.615357][ C2] ? simple_pin_fs (fs/libfs.c:1066) 
[ 13.615361][ C2] simple_pin_fs (fs/libfs.c:1066) 
[ 13.615366][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 13.615375][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.615384][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.615389][ 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) 
[ 13.615397][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.615402][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.615407][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.615414][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.615420][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.615427][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 13.615430][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 13.615434][ C2] ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 13.615438][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.615445][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 13.615453][ C2] ? set_track_prepare (mm/slub.c:936) 
[ 13.615461][ C2] ? __alloc_object (mm/kmemleak.c:697) 
[ 13.615466][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 13.615474][ C2] __put_net (net/core/net_namespace.c:732) 
[ 13.615480][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.615487][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.615492][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.615499][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.615506][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.615513][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.615519][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.615525][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.615532][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.615538][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 13.615546][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.615551][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.615556][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.615561][    C2]  </IRQ>
[   13.615563][    C2]  <TASK>
[ 13.615566][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.615571][ C2] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 13.615577][ C2] Code: ff ff ff 65 0f c1 05 9d 53 13 05 83 f8 01 0f 85 3e 01 00 00 9c 58 f6 c4 02 0f 85 29 01 00 00 48 85 db 74 01 fb 48 8b 44 24 30 <65> 48 2b 05 0e 17 13 05 0f 85 3a 01 00 00 48 83 c4 38 5b 5d 41 5c
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 65 0f             	jmp    *0xf(%rbp)
   5:	c1 05 9d 53 13 05 83 	roll   $0x83,0x513539d(%rip)        # 0x51353a9
   c:	f8                   	clc
   d:	01 0f                	add    %ecx,(%rdi)
   f:	85 3e                	test   %edi,(%rsi)
  11:	01 00                	add    %eax,(%rax)
  13:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1a:	85 29                	test   %ebp,(%rcx)
  1c:	01 00                	add    %eax,(%rax)
  1e:	00 48 85             	add    %cl,-0x7b(%rax)
  21:	db 74 01 fb          	(bad)  -0x5(%rcx,%rax,1)
  25:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  2a:*	65 48 2b 05 0e 17 13 	sub    %gs:0x513170e(%rip),%rax        # 0x5131740		<-- trapping instruction
  31:	05 
  32:	0f 85 3a 01 00 00    	jne    0x172
  38:	48 83 c4 38          	add    $0x38,%rsp
  3c:	5b                   	pop    %rbx
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12

Code starting with the faulting instruction
===========================================
   0:	65 48 2b 05 0e 17 13 	sub    %gs:0x513170e(%rip),%rax        # 0x5131716
   7:	05 
   8:	0f 85 3a 01 00 00    	jne    0x148
   e:	48 83 c4 38          	add    $0x38,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
[   13.615582][    C2] RSP: 0018:ffffc900004e7568 EFLAGS: 00000206
[   13.615587][    C2] RAX: fefa052bac6ac000 RBX: 0000000000000200 RCX: 0000000000000001
[   13.615591][    C2] RDX: 0000000000000000 RSI: ffffffff8c47168b RDI: ffffffff8bc50e20
[   13.615594][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   13.615596][    C2] R10: 0000000000000028 R11: ffffffff8c9745a0 R12: 0000000000000002
[   13.615599][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8c9745a0
[ 13.615607][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.615611][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 13.615614][ 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) 
[ 13.615619][ C2] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 13.615623][ 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) 
[ 13.615627][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.615634][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.615639][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 13.615646][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.615651][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.615656][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.615663][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.615667][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 13.615671][ C2] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.615675][ C2] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 13.615684][ C2] __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 13.615689][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 13.615696][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.615705][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.615712][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 13.615718][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 13.615728][ C2] set_track_prepare (mm/slub.c:936) 
[ 13.615734][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.615738][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 13.615744][ C2] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 13.615752][ C2] __alloc_object (mm/kmemleak.c:697) 
[ 13.615757][ C2] __create_object (mm/kmemleak.c:770) 
[ 13.615763][ C2] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.615769][ C2] ? vma_merge_new_range (mm/vma.c:1019) 
[ 13.615779][ C2] vm_area_alloc (kernel/fork.c:441) 
[ 13.615784][ C2] __mmap_region (mm/vma.c:2402 mm/vma.c:2519) 
[ 13.615793][ C2] ? __pfx___mmap_region (mm/vma.c:2499) 
[ 13.615802][ C2] ? mas_find (lib/maple_tree.c:6016) 
[ 13.615813][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.615836][ 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) 
[ 13.615842][ C2] do_mmap (mm/mmap.c:561) 
[ 13.615851][ C2] ? __pfx_do_mmap (mm/mmap.c:342) 
[ 13.615854][ 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) 
[ 13.615859][ C2] ? __pfx_down_write_killable (kernel/locking/rwsem.c:1586) 
[ 13.615866][ C2] vm_mmap_pgoff (mm/util.c:579) 
[ 13.615876][ C2] ? __pfx_vm_mmap_pgoff (mm/util.c:567) 
[ 13.615881][ C2] ? do_user_addr_fault (./include/linux/mmap_lock.h:212 arch/x86/mm/fault.c:1416) 
[ 13.615892][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.615901][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.615906][    C2] RIP: 0033:0x7fe421b0b116
[ 13.615914][ 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
[   13.615917][    C2] RSP: 002b:00007fff8b7da718 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[   13.615922][    C2] RAX: ffffffffffffffda RBX: 0000000000000022 RCX: 00007fe421b0b116
[   13.615925][    C2] RDX: 0000000000000003 RSI: 0000000000002000 RDI: 0000000000000000
[   13.615928][    C2] RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
[   13.615931][    C2] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000
[   13.615934][    C2] R13: 0000000000000000 R14: 00007fff8b7da820 R15: 00007fe421b1af80
| [   13.663412][    C2] RCU nest depth: 1, expected: 0
| [   13.663748][    C2] INFO: lockdep is turned off.
| [   13.664292][    C2] Preemption disabled at:
| [ 13.664295][ C2] handle_softirqs (kernel/softirq.c:553) 
[   13.665013][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.665016][    C2] Call Trace:
[   13.665020][    C2]  <IRQ>
[ 13.665023][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 13.665037][ C2] __might_resched (kernel/sched/core.c:8819) 
[ 13.665049][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 13.665056][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 13.665060][ C2] ? simple_recursive_removal (./include/linux/dcache.h:345 fs/libfs.c:610) 
[ 13.665068][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.665076][ 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) 
[ 13.665086][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:616) 
[ 13.665091][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 13.665099][ 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) 
[ 13.665107][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 13.665112][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:423 lib/ref_tracker.c:195) 
[ 13.665120][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 13.665125][ 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) 
[ 13.665133][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.665140][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 13.665146][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 13.665152][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 13.665158][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.665164][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 13.665169][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 13.665175][ C2] ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 13.665179][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.665187][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 13.665194][ C2] ? set_track_prepare (mm/slub.c:936) 
[ 13.665203][ C2] ? __alloc_object (mm/kmemleak.c:697) 
[ 13.665207][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 13.665212][ C2] __put_net (net/core/net_namespace.c:732) 
[ 13.665218][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2333) 
[ 13.665224][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.665229][ C2] rcu_do_batch (kernel/rcu/tree.c:2568) 
[ 13.665236][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.665245][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2492) 
[ 13.665250][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 13.665258][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 13.665264][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 13.665270][ C2] rcu_core (kernel/rcu/tree.c:2826) 
[ 13.665275][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 13.665282][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 13.665288][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 13.665292][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[   13.665298][    C2]  </IRQ>
[   13.665299][    C2]  <TASK>
[ 13.665302][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 13.665307][ C2] RIP: 0010:lock_acquire.part.0 (kernel/locking/lockdep.c:5870) 
[ 13.665313][ C2] Code: ff ff ff 65 0f c1 05 9d 53 13 05 83 f8 01 0f 85 3e 01 00 00 9c 58 f6 c4 02 0f 85 29 01 00 00 48 85 db 74 01 fb 48 8b 44 24 30 <65> 48 2b 05 0e 17 13 05 0f 85 3a 01 00 00 48 83 c4 38 5b 5d 41 5c
All code
========
   0:	ff                   	(bad)
   1:	ff                   	(bad)
   2:	ff 65 0f             	jmp    *0xf(%rbp)
   5:	c1 05 9d 53 13 05 83 	roll   $0x83,0x513539d(%rip)        # 0x51353a9
   c:	f8                   	clc
   d:	01 0f                	add    %ecx,(%rdi)
   f:	85 3e                	test   %edi,(%rsi)
  11:	01 00                	add    %eax,(%rax)
  13:	00 9c 58 f6 c4 02 0f 	add    %bl,0xf02c4f6(%rax,%rbx,2)
  1a:	85 29                	test   %ebp,(%rcx)
  1c:	01 00                	add    %eax,(%rax)
  1e:	00 48 85             	add    %cl,-0x7b(%rax)
  21:	db 74 01 fb          	(bad)  -0x5(%rcx,%rax,1)
  25:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  2a:*	65 48 2b 05 0e 17 13 	sub    %gs:0x513170e(%rip),%rax        # 0x5131740		<-- trapping instruction
  31:	05 
  32:	0f 85 3a 01 00 00    	jne    0x172
  38:	48 83 c4 38          	add    $0x38,%rsp
  3c:	5b                   	pop    %rbx
  3d:	5d                   	pop    %rbp
  3e:	41 5c                	pop    %r12

Code starting with the faulting instruction
===========================================
   0:	65 48 2b 05 0e 17 13 	sub    %gs:0x513170e(%rip),%rax        # 0x5131716
   7:	05 
   8:	0f 85 3a 01 00 00    	jne    0x148
   e:	48 83 c4 38          	add    $0x38,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
[   13.665317][    C2] RSP: 0018:ffffc900004e7568 EFLAGS: 00000206
[   13.665324][    C2] RAX: fefa052bac6ac000 RBX: 0000000000000200 RCX: 0000000000000001
[   13.665327][    C2] RDX: 0000000000000000 RSI: ffffffff8c47168b RDI: ffffffff8bc50e20
[   13.665331][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[   13.665333][    C2] R10: 0000000000000028 R11: ffffffff8c9745a0 R12: 0000000000000002
[   13.665336][    C2] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8c9745a0
[ 13.665348][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.665353][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5829) 
[ 13.665356][ 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) 
[ 13.665362][ C2] unwind_next_frame (./include/linux/rcupdate.h:842 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 13.665366][ 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) 
[ 13.665370][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.665378][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 13.665383][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 13.665391][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 13.665396][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 13.665401][ C2] ? kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.665408][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 13.665412][ C2] ? __create_object (mm/kmemleak.c:770) 
[ 13.665416][ C2] ? kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.665421][ C2] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 13.665427][ C2] __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 13.665431][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 13.665438][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.665447][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 13.665455][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 13.665461][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 13.665469][ C2] set_track_prepare (mm/slub.c:936) 
[ 13.665474][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 13.665478][ C2] ? trace_kmem_cache_alloc (./include/trace/events/kmem.h:12 (discriminator 21)) 
[ 13.665483][ C2] ? lockdep_init_map_type (kernel/locking/lockdep.c:4974) 
[ 13.665489][ C2] __alloc_object (mm/kmemleak.c:697) 
[ 13.665494][ C2] __create_object (mm/kmemleak.c:770) 
[ 13.665501][ C2] kmem_cache_alloc_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4203) 
[ 13.665507][ C2] ? vma_merge_new_range (mm/vma.c:1019) 
[ 13.665518][ C2] vm_area_alloc (kernel/fork.c:441) 
[ 13.665524][ C2] __mmap_region (mm/vma.c:2402 mm/vma.c:2519) 
[ 13.665533][ C2] ? __pfx___mmap_region (mm/vma.c:2499) 
[ 13.665542][ C2] ? mas_find (lib/maple_tree.c:6016) 
[ 13.665555][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 13.665577][ 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) 
[ 13.665584][ C2] do_mmap (mm/mmap.c:561) 
[ 13.665593][ C2] ? __pfx_do_mmap (mm/mmap.c:342) 
[ 13.665597][ 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) 
[ 13.665602][ C2] ? __pfx_down_write_killable (kernel/locking/rwsem.c:1586) 
[ 13.665609][ C2] vm_mmap_pgoff (mm/util.c:579) 
[ 13.665619][ C2] ? __pfx_vm_mmap_pgoff (mm/util.c:567) 
[ 13.665624][ C2] ? do_user_addr_fault (./include/linux/mmap_lock.h:212 arch/x86/mm/fault.c:1416) 
[ 13.665636][ C2] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 13.665645][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.665650][    C2] RIP: 0033:0x7fe421b0b116
[ 13.665658][ 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
[   13.665664][    C2] RSP: 002b:00007fff8b7da718 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[   13.665670][    C2] RAX: ffffffffffffffda RBX: 0000000000000022 RCX: 00007fe421b0b116
[   13.665673][    C2] RDX: 0000000000000003 RSI: 0000000000002000 RDI: 0000000000000000
[   13.665676][    C2] RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
[   13.665679][    C2] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000


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