rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=1f5/1/0x4000000000000000 softirq=51240/51241 fqs=5188 (t=10500 jiffies g=80481 q=2290) NMI backtrace for cpu 1 CPU: 1 PID: 23715 Comm: syz-executor.2 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:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_switch+0x78/0x100 kernel/kcov.c:320 Code: 1c 25 c0 6f 02 00 31 d2 eb 14 0f 1f 84 00 00 00 00 00 48 ff c2 49 39 d2 0f 84 87 00 00 00 4c 8b 74 d6 10 65 8b 05 30 25 7e 7e 00 01 ff 00 74 11 a9 00 01 00 00 74 da 41 83 bb a4 15 00 00 00 RSP: 0018:ffffc90004a9f808 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000003 RDX: 0000000000000000 RSI: ffffffff8ce4a000 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000005 R09: ffffffff82ad418c R10: 0000000000000002 R11: ffff888081e53a00 R12: 1ffff11012523cca R13: ffff88809291e600 R14: 0000000000000000 R15: ffff88809291e650 ntfs_lookup_inode_by_name+0x17dc/0x37b0 fs/ntfs/dir.c:505 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:1368 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x86/0x270 fs/super.c:1498 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: 0033:0x7fcb2989101a 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:00007fcb26e04fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fcb2989101a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcb26e05000 RBP: 00007fcb26e05040 R08: 00007fcb26e05040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fcb26e05000 R15: 000000002007dd00 ---------------- Code disassembly (best guess): 0: 1c 25 sbb $0x25,%al 2: c0 6f 02 00 shrb $0x0,0x2(%rdi) 6: 31 d2 xor %edx,%edx 8: eb 14 jmp 0x1e a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 11: 00 12: 48 ff c2 inc %rdx 15: 49 39 d2 cmp %rdx,%r10 18: 0f 84 87 00 00 00 je 0xa5 1e: 4c 8b 74 d6 10 mov 0x10(%rsi,%rdx,8),%r14 23: 65 8b 05 30 25 7e 7e mov %gs:0x7e7e2530(%rip),%eax # 0x7e7e255a * 2a: a9 00 01 ff 00 test $0xff0100,%eax <-- trapping instruction 2f: 74 11 je 0x42 31: a9 00 01 00 00 test $0x100,%eax 36: 74 da je 0x12 38: 41 83 bb a4 15 00 00 cmpl $0x0,0x15a4(%r11) 3f: 00