rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10499 ticks this GP) idle=111/1/0x4000000000000000 softirq=89324/89324 fqs=5138
(t=10500 jiffies g=175697 q=40306)
NMI backtrace for cpu 0
CPU: 0 PID: 31091 Comm: syz-executor.2 Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__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:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3889 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2608
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
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:ntfs_collate_names+0x285/0x3d0 fs/ntfs/unistr.c:112
Code: 44 8b 74 24 18 8b 5c 24 14 44 89 f6 89 df e8 42 84 e5 fe 44 39 f3 72 c6 e8 38 81 e5 fe 44 89 f6 89 df 45 31 ed e8 2b 84 e5 fe <44> 39 f3 74 b5 e8 21 81 e5 fe 4c 89 e2 48 b8 00 00 00 00 00 fc ff
RSP: 0018:ffffc90004c17930 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff888080298000 RDI: 0000000000000003
RBP: ffff888054d35ac2 R08: 0000000000000008 R09: 0000000000000001
R10: ffffffff8291f3e5 R11: 0000000000000000 R12: ffffffff89df4840
R13: 0000000000000000 R14: 0000000000000000 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+0x7425/0x84a0 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: 0033:0x7f2985d98f6a
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:00007f298330cfa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f2985d98f6a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f298330d000
RBP: 00007f298330d040 R08: 00007f298330d040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f298330d000 R15: 0000000020086e00
----------------
Code disassembly (best guess):
0: 44 8b 74 24 18 mov 0x18(%rsp),%r14d
5: 8b 5c 24 14 mov 0x14(%rsp),%ebx
9: 44 89 f6 mov %r14d,%esi
c: 89 df mov %ebx,%edi
e: e8 42 84 e5 fe callq 0xfee58455
13: 44 39 f3 cmp %r14d,%ebx
16: 72 c6 jb 0xffffffde
18: e8 38 81 e5 fe callq 0xfee58155
1d: 44 89 f6 mov %r14d,%esi
20: 89 df mov %ebx,%edi
22: 45 31 ed xor %r13d,%r13d
25: e8 2b 84 e5 fe callq 0xfee58455
* 2a: 44 39 f3 cmp %r14d,%ebx <-- trapping instruction
2d: 74 b5 je 0xffffffe4
2f: e8 21 81 e5 fe callq 0xfee58155
34: 4c 89 e2 mov %r12,%rdx
37: 48 rex.W
38: b8 00 00 00 00 mov $0x0,%eax
3d: 00 fc add %bh,%ah
3f: ff .byte 0xff