======================================
| [ 12.871081][ C2] #1: ffffffffb8b775e0 (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) 
| [ 12.871551][ C2] #2: ffffffffb8b774c0 (rcu_callback){....}-{0:0}, at: rcu_do_batch (./include/linux/rcupdate.h:331 kernel/rcu/tree.c:2570) 
| [   12.871970][    C2]
| [   12.871970][    C2] stack backtrace:
[   12.872270][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.872272][    C2] Call Trace:
[   12.872275][    C2]  <IRQ>
[ 12.872277][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.872287][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4048) 
[ 12.872296][ C2] mark_lock_irq (kernel/locking/lockdep.c:4013 kernel/locking/lockdep.c:4059 kernel/locking/lockdep.c:4270) 
[ 12.872301][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.872304][ C2] ? save_trace (kernel/locking/lockdep.c:595) 
[ 12.872309][ C2] mark_lock (kernel/locking/lockdep.c:4756) 
[ 12.872313][ C2] mark_usage (kernel/locking/lockdep.c:4645) 
[ 12.872316][ C2] __lock_acquire (kernel/locking/lockdep.c:5194) 
[ 12.872320][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.872324][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:473 kernel/locking/lockdep.c:5873) 
[ 12.872327][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.872332][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.872338][ C2] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5834) 
[ 12.872341][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.872345][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) 
[ 12.872350][ C2] ? simple_pin_fs (fs/libfs.c:1067) 
[ 12.872352][ C2] simple_pin_fs (fs/libfs.c:1067) 
[ 12.872355][ C2] debugfs_remove (fs/debugfs/inode.c:805 fs/debugfs/inode.c:799) 
[ 12.872360][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 12.872366][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 12.872369][ 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) 
[ 12.872375][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.872379][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 12.872381][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.872386][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 12.872391][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.872396][ C2] ? lock_release (kernel/locking/lockdep.c:124 kernel/locking/lockdep.c:5884) 
[ 12.872398][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.872401][ C2] ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 12.872404][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.872408][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.872413][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.872418][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.872421][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.872428][ C2] __put_net (net/core/net_namespace.c:732) 
[ 12.872432][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 12.872437][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.872439][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.872443][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.872446][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 12.872450][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.872453][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 12.872456][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.872461][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 12.872465][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 12.872470][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.872474][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.872477][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   12.872480][    C2]  </IRQ>
[   12.872481][    C2]  <TASK>
[ 12.872483][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.872485][ C2] RIP: 0010:lock_release (kernel/locking/lockdep.c:124 kernel/locking/lockdep.c:5884) 
[ 12.872490][ C2] Code: fd 53 e8 bd 88 ff ff 8b 15 7b 4b 20 04 85 d2 74 73 65 8b 05 9c fe 14 05 85 c0 75 68 65 48 8b 05 38 be 14 05 8b 80 4c 0a 00 00 <85> c0 75 56 48 81 7d 00 40 2d 58 ba 74 4c 9c 5b fa 48 c7 c7 da 3d
All code
========
   0:	fd                   	std
   1:	53                   	push   %rbx
   2:	e8 bd 88 ff ff       	call   0xffffffffffff88c4
   7:	8b 15 7b 4b 20 04    	mov    0x4204b7b(%rip),%edx        # 0x4204b88
   d:	85 d2                	test   %edx,%edx
   f:	74 73                	je     0x84
  11:	65 8b 05 9c fe 14 05 	mov    %gs:0x514fe9c(%rip),%eax        # 0x514feb4
  18:	85 c0                	test   %eax,%eax
  1a:	75 68                	jne    0x84
  1c:	65 48 8b 05 38 be 14 	mov    %gs:0x514be38(%rip),%rax        # 0x514be5c
  23:	05 
  24:	8b 80 4c 0a 00 00    	mov    0xa4c(%rax),%eax
  2a:*	85 c0                	test   %eax,%eax		<-- trapping instruction
  2c:	75 56                	jne    0x84
  2e:	48 81 7d 00 40 2d 58 	cmpq   $0xffffffffba582d40,0x0(%rbp)
  35:	ba 
  36:	74 4c                	je     0x84
  38:	9c                   	pushf
  39:	5b                   	pop    %rbx
  3a:	fa                   	cli
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c7                   	(bad)
  3e:	da                   	.byte 0xda
  3f:	3d                   	.byte 0x3d

Code starting with the faulting instruction
===========================================
   0:	85 c0                	test   %eax,%eax
   2:	75 56                	jne    0x5a
   4:	48 81 7d 00 40 2d 58 	cmpq   $0xffffffffba582d40,0x0(%rbp)
   b:	ba 
   c:	74 4c                	je     0x5a
   e:	9c                   	pushf
   f:	5b                   	pop    %rbx
  10:	fa                   	cli
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	da                   	.byte 0xda
  15:	3d                   	.byte 0x3d
[   12.872493][    C2] RSP: 0018:ffffc900004b6f58 EFLAGS: 00000246
[   12.872496][    C2] RAX: 0000000000000000 RBX: 1ffff92000096df8 RCX: ffffc900004b8001
[   12.872498][    C2] RDX: 0000000000000001 RSI: ffffffffb7e53c20 RDI: ffffffffb86eae30
[   12.872500][    C2] RBP: ffffffffb8b775e0 R08: 0000000000000000 R09: ffffc900004b7109
[   12.872502][    C2] R10: 0000000000000000 R11: ffffc900004b7108 R12: ffffffffb5213a2e
[   12.872504][    C2] R13: ffffc900004b70c8 R14: ffffc900004b0000 R15: ffffc900004b7168
[ 12.872506][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.872513][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 12.872516][ C2] unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.872520][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.872525][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.872533][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.872536][ C2] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 12.872541][ C2] __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 12.872544][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.872548][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.872553][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.872557][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.872560][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.872563][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.872567][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.872571][ C2] ? memchr_inv (lib/string.c:874) 
[ 12.872576][ C2] ? check_bytes_and_report (mm/slub.c:1212) 
[ 12.872583][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.872587][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.872590][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.872594][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.872597][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.872601][ C2] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 12.872606][ C2] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 12.872610][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.872617][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.872621][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.872625][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.872628][ C2] ? fuse_file_alloc (fs/fuse/file.c:64) 
[ 12.872634][ C2] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.872638][ C2] __create_object (mm/kmemleak.c:770) 
[ 12.872642][ C2] __kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4353) 
[ 12.872645][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.872648][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.872652][ C2] fuse_file_alloc (fs/fuse/file.c:64) 
[ 12.872656][ C2] fuse_file_open (fs/fuse/file.c:134) 
[ 12.872660][ C2] fuse_open (fs/fuse/file.c:175 fs/fuse/file.c:264) 
[ 12.872664][ C2] do_dentry_open (fs/open.c:964) 
[ 12.872668][ C2] ? __pfx_fuse_open (fs/fuse/file.c:234) 
[ 12.872672][ C2] vfs_open (fs/open.c:1094) 
[ 12.872679][ C2] backing_file_open (fs/backing-file.c:45) 
[ 12.872684][ C2] ? inode_owner_or_capable (./include/linux/mnt_idmapping.h:87 fs/inode.c:2591) 
[ 12.872689][ C2] ovl_open_realfile (fs/overlayfs/file.c:51) 
[ 12.872696][ C2] ovl_open (fs/overlayfs/file.c:222) 
[ 12.872700][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:199) 
[ 12.872702][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 12.872708][ C2] do_dentry_open (fs/open.c:964) 
[ 12.872710][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:199) 
[ 12.872715][ C2] vfs_open (fs/open.c:1094) 
[ 12.872720][ C2] do_open (fs/namei.c:3888) 
[ 12.872725][ C2] path_openat (fs/namei.c:4046) 
[ 12.872729][ C2] ? __pfx_path_openat (fs/namei.c:4028) 
[ 12.872732][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.872736][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.872739][ C2] do_filp_open (fs/namei.c:4073) 
[ 12.872743][ C2] ? __pfx_do_filp_open (fs/namei.c:4067) 
[ 12.872746][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 12.872750][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.872756][ C2] ? __pfx_page_put_link (fs/namei.c:5478) 
[ 12.872761][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.872766][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.872771][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.872776][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.872781][ C2] do_open_execat (fs/exec.c:833) 
[ 12.872784][ C2] ? __pfx_do_open_execat (fs/exec.c:815) 
[ 12.872788][ C2] ? getname_kernel (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 fs/namei.c:132 fs/namei.c:271) 
[ 12.872792][ C2] open_exec (fs/exec.c:871) 
[ 12.872794][ C2] load_elf_binary (fs/binfmt_elf.c:893) 
[ 12.872799][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.872805][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.872807][ C2] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 12.872810][ C2] ? exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 12.872814][ C2] exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 12.872819][ C2] ? __pfx_exec_binprm (fs/exec.c:1734) 
[ 12.872821][ C2] ? bprm_execve (fs/exec.c:1792 fs/exec.c:1778) 
[ 12.872826][ C2] bprm_execve (fs/exec.c:1802 fs/exec.c:1778) 
[ 12.872829][ C2] kernel_execve (fs/exec.c:1968) 
[ 12.872832][ C2] call_usermodehelper_exec_async (kernel/umh.c:113) 
[ 12.872837][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.872840][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.872843][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.872846][ C2] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 12.872849][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.872853][ C2] ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
| [   12.909731][    C2] RCU nest depth: 1, expected: 0
| [   12.909977][    C2] INFO: lockdep is turned off.
| [   12.910428][    C2] Preemption disabled at:
| [ 12.910430][ C2] handle_softirqs (kernel/softirq.c:553) 
[   12.910952][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.910955][    C2] Call Trace:
[   12.910957][    C2]  <IRQ>
[ 12.910960][ C2] dump_stack_lvl (lib/dump_stack.c:123) 
[ 12.910969][ C2] __might_resched (kernel/sched/core.c:8796) 
[ 12.910978][ C2] down_write (./include/linux/kernel.h:73 kernel/locking/rwsem.c:1576) 
[ 12.910983][ C2] ? __pfx_down_write (kernel/locking/rwsem.c:1575) 
[ 12.910986][ C2] ? simple_recursive_removal (fs/libfs.c:614) 
[ 12.910992][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 12.910999][ 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) 
[ 12.911003][ C2] simple_recursive_removal (./include/linux/dcache.h:409 ./include/linux/dcache.h:424 ./include/linux/dcache.h:434 fs/libfs.c:617) 
[ 12.911006][ 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) 
[ 12.911009][ C2] ? __pfx_remove_one (fs/debugfs/inode.c:780) 
[ 12.911015][ C2] debugfs_remove (fs/debugfs/inode.c:806 fs/debugfs/inode.c:799) 
[ 12.911019][ C2] ref_tracker_dir_exit (lib/ref_tracker.c:411 lib/ref_tracker.c:195) 
[ 12.911024][ C2] ? __pfx_ref_tracker_free (lib/ref_tracker.c:253) 
[ 12.911027][ 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) 
[ 12.911033][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.911038][ C2] ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:189) 
[ 12.911041][ C2] ? irq_exit_rcu (kernel/softirq.c:698) 
[ 12.911044][ C2] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 12.911049][ C2] ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.911055][ C2] ? lock_release (kernel/locking/lockdep.c:124 kernel/locking/lockdep.c:5884) 
[ 12.911060][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.911066][ C2] ? __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 12.911070][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.911076][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.911082][ C2] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 12.911090][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.911095][ C2] ? __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.911104][ C2] __put_net (net/core/net_namespace.c:732) 
[ 12.911111][ C2] __sk_destruct (./include/net/net_namespace.h:288 ./include/net/net_namespace.h:390 net/core/sock.c:2376) 
[ 12.911119][ C2] ? rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.911124][ C2] rcu_do_batch (kernel/rcu/tree.c:2576) 
[ 12.911130][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.911137][ C2] ? __pfx_rcu_do_batch (kernel/rcu/tree.c:2500) 
[ 12.911142][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.911148][ C2] ? note_gp_changes (kernel/rcu/tree.c:1326 (discriminator 1)) 
[ 12.911153][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.911161][ C2] rcu_core (kernel/rcu/tree.c:2834) 
[ 12.911169][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 12.911179][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 12.911184][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 12.911187][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[   12.911191][    C2]  </IRQ>
[   12.911192][    C2]  <TASK>
[ 12.911194][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 12.911198][ C2] RIP: 0010:lock_release (kernel/locking/lockdep.c:124 kernel/locking/lockdep.c:5884) 
[ 12.911202][ C2] Code: fd 53 e8 bd 88 ff ff 8b 15 7b 4b 20 04 85 d2 74 73 65 8b 05 9c fe 14 05 85 c0 75 68 65 48 8b 05 38 be 14 05 8b 80 4c 0a 00 00 <85> c0 75 56 48 81 7d 00 40 2d 58 ba 74 4c 9c 5b fa 48 c7 c7 da 3d
All code
========
   0:	fd                   	std
   1:	53                   	push   %rbx
   2:	e8 bd 88 ff ff       	call   0xffffffffffff88c4
   7:	8b 15 7b 4b 20 04    	mov    0x4204b7b(%rip),%edx        # 0x4204b88
   d:	85 d2                	test   %edx,%edx
   f:	74 73                	je     0x84
  11:	65 8b 05 9c fe 14 05 	mov    %gs:0x514fe9c(%rip),%eax        # 0x514feb4
  18:	85 c0                	test   %eax,%eax
  1a:	75 68                	jne    0x84
  1c:	65 48 8b 05 38 be 14 	mov    %gs:0x514be38(%rip),%rax        # 0x514be5c
  23:	05 
  24:	8b 80 4c 0a 00 00    	mov    0xa4c(%rax),%eax
  2a:*	85 c0                	test   %eax,%eax		<-- trapping instruction
  2c:	75 56                	jne    0x84
  2e:	48 81 7d 00 40 2d 58 	cmpq   $0xffffffffba582d40,0x0(%rbp)
  35:	ba 
  36:	74 4c                	je     0x84
  38:	9c                   	pushf
  39:	5b                   	pop    %rbx
  3a:	fa                   	cli
  3b:	48                   	rex.W
  3c:	c7                   	.byte 0xc7
  3d:	c7                   	(bad)
  3e:	da                   	.byte 0xda
  3f:	3d                   	.byte 0x3d

Code starting with the faulting instruction
===========================================
   0:	85 c0                	test   %eax,%eax
   2:	75 56                	jne    0x5a
   4:	48 81 7d 00 40 2d 58 	cmpq   $0xffffffffba582d40,0x0(%rbp)
   b:	ba 
   c:	74 4c                	je     0x5a
   e:	9c                   	pushf
   f:	5b                   	pop    %rbx
  10:	fa                   	cli
  11:	48                   	rex.W
  12:	c7                   	.byte 0xc7
  13:	c7                   	(bad)
  14:	da                   	.byte 0xda
  15:	3d                   	.byte 0x3d
[   12.911205][    C2] RSP: 0018:ffffc900004b6f58 EFLAGS: 00000246
[   12.911209][    C2] RAX: 0000000000000000 RBX: 1ffff92000096df8 RCX: ffffc900004b8001
[   12.911211][    C2] RDX: 0000000000000001 RSI: ffffffffb7e53c20 RDI: ffffffffb86eae30
[   12.911213][    C2] RBP: ffffffffb8b775e0 R08: 0000000000000000 R09: ffffc900004b7109
[   12.911215][    C2] R10: 0000000000000000 R11: ffffc900004b7108 R12: ffffffffb5213a2e
[   12.911217][    C2] R13: ffffc900004b70c8 R14: ffffc900004b0000 R15: ffffc900004b7168
[ 12.911219][ C2] ? unwind_next_frame (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.911226][ C2] ? lock_release (kernel/locking/lockdep.c:118 kernel/locking/lockdep.c:5884) 
[ 12.911230][ C2] unwind_next_frame (./include/linux/rcupdate.h:873 ./include/linux/rcupdate.h:1155 arch/x86/kernel/unwind_orc.c:479) 
[ 12.911233][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.911238][ C2] ? __pfx_unwind_next_frame (arch/x86/kernel/unwind_orc.c:469) 
[ 12.911242][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.911245][ C2] ? get_stack_info_noinstr (arch/x86/kernel/dumpstack_64.c:173) 
[ 12.911250][ C2] __unwind_start (./arch/x86/include/asm/unwind.h:50 arch/x86/kernel/unwind_orc.c:755) 
[ 12.911253][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.911257][ C2] arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.911261][ C2] ? stack_trace_save (kernel/stacktrace.c:123) 
[ 12.911265][ C2] stack_trace_save (kernel/stacktrace.c:123) 
[ 12.911268][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 12.911271][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.911276][ C2] kasan_save_stack (mm/kasan/common.c:48) 
[ 12.911279][ C2] ? memchr_inv (lib/string.c:874) 
[ 12.911284][ C2] ? check_bytes_and_report (mm/slub.c:1212) 
[ 12.911291][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.911295][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.911298][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.911303][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.911307][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 12.911311][ C2] ? get_partial_node.part.0 (mm/slub.c:2902) 
[ 12.911316][ C2] ? ___slab_alloc (mm/slub.c:2863 mm/slub.c:2980 mm/slub.c:3838) 
[ 12.911320][ C2] ? __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.911328][ C2] kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.911331][ C2] __kasan_slab_alloc (mm/kasan/common.c:348) 
[ 12.911335][ C2] kmem_cache_alloc_noprof (./include/linux/kasan.h:250 mm/slub.c:4147 mm/slub.c:4196 mm/slub.c:4203) 
[ 12.911339][ C2] ? fuse_file_alloc (fs/fuse/file.c:64) 
[ 12.911344][ C2] __alloc_object (mm/kmemleak.c:481 mm/kmemleak.c:661) 
[ 12.911348][ C2] __create_object (mm/kmemleak.c:770) 
[ 12.911352][ C2] __kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4151 mm/slub.c:4196 mm/slub.c:4353) 
[ 12.911356][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.911361][ C2] ? kasan_save_track (./arch/x86/include/asm/current.h:25 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 12.911365][ C2] fuse_file_alloc (fs/fuse/file.c:64) 
[ 12.911368][ C2] fuse_file_open (fs/fuse/file.c:134) 
[ 12.911372][ C2] fuse_open (fs/fuse/file.c:175 fs/fuse/file.c:264) 
[ 12.911376][ C2] do_dentry_open (fs/open.c:964) 
[ 12.911380][ C2] ? __pfx_fuse_open (fs/fuse/file.c:234) 
[ 12.911384][ C2] vfs_open (fs/open.c:1094) 
[ 12.911390][ C2] backing_file_open (fs/backing-file.c:45) 
[ 12.911393][ C2] ? inode_owner_or_capable (./include/linux/mnt_idmapping.h:87 fs/inode.c:2591) 
[ 12.911398][ C2] ovl_open_realfile (fs/overlayfs/file.c:51) 
[ 12.911404][ C2] ovl_open (fs/overlayfs/file.c:222) 
[ 12.911407][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:199) 
[ 12.911410][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 12.911415][ C2] do_dentry_open (fs/open.c:964) 
[ 12.911418][ C2] ? __pfx_ovl_open (fs/overlayfs/file.c:199) 
[ 12.911422][ C2] vfs_open (fs/open.c:1094) 
[ 12.911427][ C2] do_open (fs/namei.c:3888) 
[ 12.911433][ C2] path_openat (fs/namei.c:4046) 
[ 12.911436][ C2] ? __pfx_path_openat (fs/namei.c:4028) 
[ 12.911439][ C2] ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
[ 12.911443][ C2] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
[ 12.911446][ C2] do_filp_open (fs/namei.c:4073) 
[ 12.911449][ C2] ? __pfx_do_filp_open (fs/namei.c:4067) 
[ 12.911452][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 12.911458][ C2] ? validate_chain (kernel/locking/lockdep.c:3804 kernel/locking/lockdep.c:3824 kernel/locking/lockdep.c:3879) 
[ 12.911463][ C2] ? __pfx_page_put_link (fs/namei.c:5478) 
[ 12.911470][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.911474][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4328) 
[ 12.911477][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 12.911480][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.911486][ C2] do_open_execat (fs/exec.c:833) 
[ 12.911488][ C2] ? __pfx_do_open_execat (fs/exec.c:815) 
[ 12.911493][ C2] ? getname_kernel (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 fs/namei.c:132 fs/namei.c:271) 
[ 12.911497][ C2] open_exec (fs/exec.c:871) 
[ 12.911500][ C2] load_elf_binary (fs/binfmt_elf.c:893) 
[ 12.911505][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 12.911510][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 12.911513][ C2] ? __pfx_load_elf_binary (fs/binfmt_elf.c:818) 
[ 12.911515][ C2] ? exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 12.911520][ C2] exec_binprm (fs/exec.c:1718 fs/exec.c:1750) 
[ 12.911524][ C2] ? __pfx_exec_binprm (fs/exec.c:1734) 
[ 12.911527][ C2] ? bprm_execve (fs/exec.c:1792 fs/exec.c:1778) 
[ 12.911532][ C2] bprm_execve (fs/exec.c:1802 fs/exec.c:1778) 
[ 12.911535][ C2] kernel_execve (fs/exec.c:1968) 
[ 12.911541][ C2] call_usermodehelper_exec_async (kernel/umh.c:113) 
[ 12.911546][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 12.911551][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.911556][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 
[ 12.911562][ C2] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 12.911570][ C2] ? __pfx_call_usermodehelper_exec_async (kernel/umh.c:64) 


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