rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10499 ticks this GP) idle=ef1/1/0x4000000000000000 softirq=35961/35961 fqs=5096 (t=10500 jiffies g=56397 q=2553) NMI backtrace for cpu 1 CPU: 1 PID: 22047 Comm: syz-executor.5 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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:write_comp_data kernel/kcov.c:220 [inline] RIP: 0010:__sanitizer_cov_trace_cmp4+0x4/0xa0 kernel/kcov.c:261 Code: c1 e0 03 48 83 c8 18 48 89 34 01 4c 89 44 f9 18 49 ff c2 4c 89 11 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 4c 8b 04 24 <65> 48 8b 14 25 c0 6f 02 00 65 8b 05 a4 21 7e 7e a9 00 01 ff 00 74 RSP: 0018:ffffc90003e577b8 EFLAGS: 00000206 RAX: 0000000000000002 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffff888098f01d00 RSI: 0000000000000000 RDI: 000000000000000c RBP: 000000000000000c R08: ffffffff82b34b04 R09: 0000000000000001 R10: ffffed100e80d503 R11: 0000000000000000 R12: ffff888000613652 R13: ffffffff8aab4520 R14: 0000000000000000 R15: 0000000000000001 ntfs_collate_names+0x2e4/0x390 fs/ntfs/unistr.c:112 ntfs_lookup_inode_by_name+0x17c8/0x37b0 fs/ntfs/dir.c:496 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: 0033:0x7f389e92701a 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:00007f389be9afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f389e92701a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f389be9b000 RBP: 00007f389be9b040 R08: 00007f389be9b040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f389be9b000 R15: 0000000020086e00 ---------------- Code disassembly (best guess): 0: c1 e0 03 shl $0x3,%eax 3: 48 83 c8 18 or $0x18,%rax 7: 48 89 34 01 mov %rsi,(%rcx,%rax,1) b: 4c 89 44 f9 18 mov %r8,0x18(%rcx,%rdi,8) 10: 49 ff c2 inc %r10 13: 4c 89 11 mov %r10,(%rcx) 16: c3 retq 17: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 1e: 00 00 00 21: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 26: 4c 8b 04 24 mov (%rsp),%r8 * 2a: 65 48 8b 14 25 c0 6f mov %gs:0x26fc0,%rdx <-- trapping instruction 31: 02 00 33: 65 8b 05 a4 21 7e 7e mov %gs:0x7e7e21a4(%rip),%eax # 0x7e7e21de 3a: a9 00 01 ff 00 test $0xff0100,%eax 3f: 74 .byte 0x74