rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (10499 ticks this GP) idle=f03/1/0x4000000000000000 softirq=146713/146713 fqs=5215 (t=10500 jiffies g=262473 q=29113) NMI backtrace for cpu 1 CPU: 1 PID: 21565 Comm: syz-executor.1 Not tainted 5.15.0-rc7-next-20211026-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:3922 [inline] rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2620 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:kasan_mem_to_shadow include/linux/kasan.h:56 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x52/0x180 mm/kasan/generic.c:189 Code: 39 c7 0f 86 05 01 00 00 49 83 e9 01 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca 48 c1 ed 03 49 c1 ea 03 48 01 c5 49 01 c2 <48> 89 e8 49 8d 5a 01 48 89 da 48 29 ea 48 83 fa 10 7e 63 41 89 eb RSP: 0018:ffffc9000508f978 EFLAGS: 00000282 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff828d9a0c RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888018b99010 RBP: ffffed1003173202 R08: 0000000000000000 R09: ffff888018b99017 R10: ffffed1003173202 R11: 0000000000000000 R12: ffff88804556a278 R13: ffff88804556a2c8 R14: ffff888018b99000 R15: dffffc0000000000 instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] NVolCaseSensitive fs/ntfs/volume.h:158 [inline] ntfs_lookup_inode_by_name+0x52c/0x34b0 fs/ntfs/dir.c:191 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: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: 0033:0x7fdedd8e2f6a 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:00007fdedae56fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fdedd8e2f6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fdedae57000 RBP: 00007fdedae57040 R08: 00007fdedae57040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fdedae57000 R15: 0000000020099000 ---------------- Code disassembly (best guess): 0: 39 c7 cmp %eax,%edi 2: 0f 86 05 01 00 00 jbe 0x10d 8: 49 83 e9 01 sub $0x1,%r9 c: 48 89 fd mov %rdi,%rbp f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 4d 89 ca mov %r9,%r10 1c: 48 c1 ed 03 shr $0x3,%rbp 20: 49 c1 ea 03 shr $0x3,%r10 24: 48 01 c5 add %rax,%rbp 27: 49 01 c2 add %rax,%r10 * 2a: 48 89 e8 mov %rbp,%rax <-- trapping instruction 2d: 49 8d 5a 01 lea 0x1(%r10),%rbx 31: 48 89 da mov %rbx,%rdx 34: 48 29 ea sub %rbp,%rdx 37: 48 83 fa 10 cmp $0x10,%rdx 3b: 7e 63 jle 0xa0 3d: 41 89 eb mov %ebp,%r11d