rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=24d/1/0x4000000000000000 softirq=360175/360175 fqs=5227 
	(t=10500 jiffies g=701381 q=1021)
NMI backtrace for cpu 1
CPU: 1 PID: 25544 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
 update_process_times+0x16d/0x200 kernel/time/timer.c:1785
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ntfs_are_names_equal+0x7f/0x1a0 fs/ntfs/unistr.c:63
Code: 24 40 48 89 df 4c 89 ea 48 8b 0c 24 48 89 ee e8 77 fd ff ff 31 ff 89 c3 89 c6 e8 fc 97 e5 fe 85 db 41 0f 94 c7 e8 41 8f e5 fe <44> 89 f8 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 2a 8f e5
RSP: 0018:ffffc90005177950 EFLAGS: 00000246
RAX: 0000000000040000 RBX: ffffffff89bf1040 RCX: ffffc9000fbbb000
RDX: 0000000000040000 RSI: ffffffff82916ebf RDI: 0000000000000003
RBP: ffff8880568feeba R08: 0000000000000008 R09: ffffc90005639000
R10: ffffffff82916e74 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000008 R14: 0000000000000000 R15: 0000000000000000
 ntfs_lookup_inode_by_name+0x502/0x34b0 fs/ntfs/dir.c:143
 load_and_init_usnjrnl+0xda/0x1180 fs/ntfs/super.c:1450
 load_system_files fs/ntfs/super.c:2146 [inline]
 ntfs_fill_super+0x7c20/0x8440 fs/ntfs/super.c:2891
 mount_bdev+0x34d/0x410 fs/super.c:1368
 legacy_get_tree+0x105/0x220 fs/fs_context.c:610
 vfs_get_tree+0x89/0x2f0 fs/super.c:1498
 do_new_mount fs/namespace.c:2988 [inline]
 path_mount+0x1320/0x1fa0 fs/namespace.c:3318
 do_mount fs/namespace.c:3331 [inline]
 __do_sys_mount fs/namespace.c:3539 [inline]
 __se_sys_mount fs/namespace.c:3516 [inline]
 __x64_sys_mount+0x27f/0x300 fs/namespace.c:3516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f9c6734901a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9c648bcfa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f9c6734901a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f9c648bd000
RBP: 00007f9c648bd040 R08: 00007f9c648bd040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f9c648bd000 R15: 0000000020086400
 </TASK>
----------------
Code disassembly (best guess):
   0:	24 40                	and    $0x40,%al
   2:	48 89 df             	mov    %rbx,%rdi
   5:	4c 89 ea             	mov    %r13,%rdx
   8:	48 8b 0c 24          	mov    (%rsp),%rcx
   c:	48 89 ee             	mov    %rbp,%rsi
   f:	e8 77 fd ff ff       	callq  0xfffffd8b
  14:	31 ff                	xor    %edi,%edi
  16:	89 c3                	mov    %eax,%ebx
  18:	89 c6                	mov    %eax,%esi
  1a:	e8 fc 97 e5 fe       	callq  0xfee5981b
  1f:	85 db                	test   %ebx,%ebx
  21:	41 0f 94 c7          	sete   %r15b
  25:	e8 41 8f e5 fe       	callq  0xfee58f6b
* 2a:	44 89 f8             	mov    %r15d,%eax <-- trapping instruction
  2d:	48 83 c4 08          	add    $0x8,%rsp
  31:	5b                   	pop    %rbx
  32:	5d                   	pop    %rbp
  33:	41 5c                	pop    %r12
  35:	41 5d                	pop    %r13
  37:	41 5e                	pop    %r14
  39:	41 5f                	pop    %r15
  3b:	c3                   	retq
  3c:	e8                   	.byte 0xe8
  3d:	2a                   	.byte 0x2a
  3e:	8f                   	(bad)
  3f:	e5                   	.byte 0xe5