rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=fff/1/0x4000000000000000 softirq=295130/295131 fqs=5221 
	(t=10502 jiffies g=600353 q=24677)
NMI backtrace for cpu 1
CPU: 1 PID: 27069 Comm: syz-executor.3 Not tainted 5.15.0-rc2-next-20210924-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:1428
 __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_collate_names+0x26/0x3d0 fs/ntfs/unistr.c:87
Code: cc cc cc cc 41 57 41 89 f7 41 56 41 55 41 54 49 89 fc 55 48 89 d5 53 89 cb 48 83 ec 20 89 74 24 14 89 4c 24 18 44 89 44 24 1c <44> 89 4c 24 04 e8 00 a9 e4 fe 41 39 df 41 0f 46 df 31 ff 89 de 89
RSP: 0018:ffffc90006ba7930 EFLAGS: 00000286
RAX: 0000000000010000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8881608adeba RSI: 0000000000000008 RDI: ffffffff89bf2940
RBP: ffff8881608adeba R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff828c7a90 R11: 0000000000000000 R12: ffffffff89bf2940
R13: ffff8881608adeb8 R14: ffff888098ada800 R15: 0000000000000008
 ntfs_lookup_inode_by_name+0x62d/0x34b0 fs/ntfs/dir.c:234
 load_and_init_usnjrnl+0xda/0x1180 fs/ntfs/super.c:1450
 load_system_files fs/ntfs/super.c:2146 [inline]
 ntfs_fill_super+0x7adc/0x84e0 fs/ntfs/super.c:2893
 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: 0033:0x7fe69b405c2a
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:00007fe69897afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fe69b405c2a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fe69897b000
RBP: 00007fe69897b040 R08: 00007fe69897b040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fe69897b000 R15: 0000000020086400
 </TASK>
----------------
Code disassembly (best guess):
   0:	cc                   	int3
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	41 57                	push   %r15
   6:	41 89 f7             	mov    %esi,%r15d
   9:	41 56                	push   %r14
   b:	41 55                	push   %r13
   d:	41 54                	push   %r12
   f:	49 89 fc             	mov    %rdi,%r12
  12:	55                   	push   %rbp
  13:	48 89 d5             	mov    %rdx,%rbp
  16:	53                   	push   %rbx
  17:	89 cb                	mov    %ecx,%ebx
  19:	48 83 ec 20          	sub    $0x20,%rsp
  1d:	89 74 24 14          	mov    %esi,0x14(%rsp)
  21:	89 4c 24 18          	mov    %ecx,0x18(%rsp)
  25:	44 89 44 24 1c       	mov    %r8d,0x1c(%rsp)
* 2a:	44 89 4c 24 04       	mov    %r9d,0x4(%rsp) <-- trapping instruction
  2f:	e8 00 a9 e4 fe       	callq  0xfee4a934
  34:	41 39 df             	cmp    %ebx,%r15d
  37:	41 0f 46 df          	cmovbe %r15d,%ebx
  3b:	31 ff                	xor    %edi,%edi
  3d:	89 de                	mov    %ebx,%esi
  3f:	89                   	.byte 0x89