rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=737/1/0x4000000000000000 softirq=319690/319691 fqs=5244 (t=10502 jiffies g=523777 q=594) NMI backtrace for cpu 1 CPU: 1 PID: 5273 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+0x1dc/0x2d8 lib/dump_stack.c:106 nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x22d/0x390 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+0x1e33/0x2bc0 kernel/rcu/tree.c:2597 update_process_times+0x197/0x200 kernel/time/timer.c:1785 tick_sched_handle kernel/time/tick-sched.c:226 [inline] tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x59/0x60 kernel/kcov.c:207 Code: 80 15 00 00 83 fa 02 75 21 48 8b 91 88 15 00 00 48 8b 32 48 8d 7e 01 8b 89 84 15 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 66 0f 1f 44 00 00 4c 8b 04 24 65 48 8b 14 25 c0 6f 02 00 65 8b RSP: 0018:ffffc90005cb7828 EFLAGS: 00000246 RAX: ffffffff82ae03f2 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000fdbe000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 1ffff1100c91eaca R08: ffffffff82ae0201 R09: ffffed101251b903 R10: ffffed101251b903 R11: 0000000000000000 R12: ffff8880648f5651 R13: ffff8880648f5600 R14: ffff8880648f5652 R15: ffff8880648f5652 ntfs_lookup_inode_by_name+0x1732/0x37b0 fs/ntfs/dir.c:452 check_windows_hibernation_status+0xfc/0x6e0 fs/ntfs/super.c:1274 load_system_files fs/ntfs/super.c:1989 [inline] ntfs_fill_super+0x4133/0x5f00 fs/ntfs/super.c:2891 mount_bdev+0x26c/0x3a0 fs/super.c:1370 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x86/0x270 fs/super.c:1500 do_new_mount fs/namespace.c:2988 [inline] path_mount+0x1986/0x2c30 fs/namespace.c:3318 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x308/0x3c0 fs/namespace.c:3516 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9943db201a 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:00007f9941325fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f9943db201a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f9941326000 RBP: 00007f9941326040 R08: 00007f9941326040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f9941326000 R15: 0000000020086400 ---------------- Code disassembly (best guess): 0: 80 15 00 00 83 fa 02 adcb $0x2,-0x57d0000(%rip) # 0xfa830007 7: 75 21 jne 0x2a 9: 48 8b 91 88 15 00 00 mov 0x1588(%rcx),%rdx 10: 48 8b 32 mov (%rdx),%rsi 13: 48 8d 7e 01 lea 0x1(%rsi),%rdi 17: 8b 89 84 15 00 00 mov 0x1584(%rcx),%ecx 1d: 48 39 cf cmp %rcx,%rdi 20: 73 08 jae 0x2a 22: 48 89 44 f2 08 mov %rax,0x8(%rdx,%rsi,8) 27: 48 89 3a mov %rdi,(%rdx) * 2a: c3 retq <-- trapping instruction 2b: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 31: 4c 8b 04 24 mov (%rsp),%r8 35: 65 48 8b 14 25 c0 6f mov %gs:0x26fc0,%rdx 3c: 02 00 3e: 65 gs 3f: 8b .byte 0x8b