rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=be5/1/0x4000000000000000 softirq=195540/195541 fqs=5229 (t=10500 jiffies g=344313 q=1132) NMI backtrace for cpu 1 CPU: 1 PID: 362 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: __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 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:ntfs_lookup_inode_by_name+0x646/0x34b0 fs/ntfs/dir.c:246 Code: 8b b4 24 98 00 00 00 48 8b 7c 24 20 e8 83 1b 05 00 bf ff ff ff ff 89 c3 89 c6 e8 b5 ba e8 fe 83 fb ff 5d 58 0f 84 18 0a 00 00 85 b8 e8 fe 31 ff 89 de e8 9c ba e8 fe 85 db 0f 85 98 02 00 00 RSP: 0018:ffffc9000bbef998 EFLAGS: 00000213 RAX: 0000000000010000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff888023528000 RDI: 0000000000000003 RBP: ffffc9001218d000 R08: 00000000ffffffff R09: 0000000000000000 R10: ffffffff828f0ddb R11: 0000000000000000 R12: ffff88809e7d5278 R13: ffff88809e7d52c8 R14: ffff888018f58800 R15: dffffc0000000000 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:1370 legacy_get_tree+0x105/0x220 fs/fs_context.c:610 vfs_get_tree+0x89/0x2f0 fs/super.c:1500 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: 0033:0x7fa2418d001a 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:00007fa23ee43fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa2418d001a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa23ee44000 RBP: 00007fa23ee44040 R08: 00007fa23ee44040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fa23ee44000 R15: 0000000020099000 ---------------- Code disassembly (best guess): 0: 8b b4 24 98 00 00 00 mov 0x98(%rsp),%esi 7: 48 8b 7c 24 20 mov 0x20(%rsp),%rdi c: e8 83 1b 05 00 callq 0x51b94 11: bf ff ff ff ff mov $0xffffffff,%edi 16: 89 c3 mov %eax,%ebx 18: 89 c6 mov %eax,%esi 1a: e8 b5 ba e8 fe callq 0xfee8bad4 1f: 83 fb ff cmp $0xffffffff,%ebx 22: 5d pop %rbp 23: 58 pop %rax 24: 0f 84 18 0a 00 00 je 0xa42 * 2a: e8 85 b8 e8 fe callq 0xfee8b8b4 <-- trapping instruction 2f: 31 ff xor %edi,%edi 31: 89 de mov %ebx,%esi 33: e8 9c ba e8 fe callq 0xfee8bad4 38: 85 db test %ebx,%ebx 3a: 0f 85 98 02 00 00 jne 0x2d8