rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10500 ticks this GP) idle=71b/1/0x4000000000000000 softirq=43434/43434 fqs=5241 (t=10502 jiffies g=80477 q=1423) NMI backtrace for cpu 0 CPU: 0 PID: 22400 Comm: syz-executor.2 Not tainted 5.15.0-rc3-next-20211001-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_lookup_inode_by_name+0x1d45/0x34b0 fs/ntfs/dir.c:379 Code: 00 e9 cd ec ff ff e8 ba 93 e9 fe 49 8d 7c 24 08 48 89 f8 48 89 fe 48 c1 e8 03 83 e6 07 42 0f b6 0c 30 49 8d 44 24 09 48 89 c2 <48> c1 ea 03 42 0f b6 14 32 40 38 f1 40 0f 9e c6 84 c9 0f 95 c1 40 RSP: 0018:ffffc90004cbf9a8 EFLAGS: 00000246 RAX: ffff888062a79609 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888062a79609 RSI: 0000000000000000 RDI: ffff888062a79608 RBP: ffffc90004e4a000 R08: 0000000000000000 R09: 0000000000000068 R10: ffffffff828cd7d6 R11: 000000000000003f R12: ffff888062a79600 R13: ffff88806b4d6800 R14: dffffc0000000000 R15: ffff888062a79650 check_windows_hibernation_status+0xd9/0x740 fs/ntfs/super.c:1274 load_system_files fs/ntfs/super.c:1989 [inline] ntfs_fill_super+0x62f4/0x84e0 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: 0033:0x7f1d709b4dfa 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:00007f1d6df29fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f1d709b4dfa RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f1d6df2a000 RBP: 00007f1d6df2a040 R08: 00007f1d6df2a040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f1d6df2a000 R15: 0000000020099000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 cd ec ff ff jmpq 0xffffecd2 5: e8 ba 93 e9 fe callq 0xfee993c4 a: 49 8d 7c 24 08 lea 0x8(%r12),%rdi f: 48 89 f8 mov %rdi,%rax 12: 48 89 fe mov %rdi,%rsi 15: 48 c1 e8 03 shr $0x3,%rax 19: 83 e6 07 and $0x7,%esi 1c: 42 0f b6 0c 30 movzbl (%rax,%r14,1),%ecx 21: 49 8d 44 24 09 lea 0x9(%r12),%rax 26: 48 89 c2 mov %rax,%rdx * 29: 48 c1 ea 03 shr $0x3,%rdx <-- trapping instruction 2d: 42 0f b6 14 32 movzbl (%rdx,%r14,1),%edx 32: 40 38 f1 cmp %sil,%cl 35: 40 0f 9e c6 setle %sil 39: 84 c9 test %cl,%cl 3b: 0f 95 c1 setne %cl 3e: 40 rex