------------[ cut here ]------------
ret == -ENOENT
WARNING: fs/nilfs2/btree.c:2356 at nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356, CPU#0: syz.8.1205/11773
Modules linked in:
CPU: 0 UID: 0 PID: 11773 Comm: syz.8.1205 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356
Code: 48 8b 05 6a 50 8f 0f 48 3b 44 24 10 75 26 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9 ce 40 05 08 cc e8 b8 31 19 fe 90 <0f> 0b 90 bd fe ff ff ff eb c3 e8 38 53 02 08 44 89 f1 80 e1 07 80
RSP: 0000:ffffc900053375b0 EFLAGS: 00010287
RAX: ffffffff83acefd8 RBX: ffff88806108cb00 RCX: 0000000000080000
RDX: ffffc9000dd51000 RSI: 0000000000000ac2 RDI: 0000000000000ac3
RBP: 00000000fffffffe R08: 000000000000000d R09: 0000000000000000
R10: ffff88806108d178 R11: ffffed100c211a33 R12: ffff88805a271298
R13: dffffc0000000000 R14: ffff88805a271260 R15: 000000000000007f
FS:  00007f75d47f66c0(0000) GS:ffff88812525c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3ca5bb CR3: 000000006027e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 nilfs_bmap_mark+0xba/0x180 fs/nilfs2/bmap.c:402
 nilfs_ioctl_mark_blocks_dirty fs/nilfs2/ioctl.c:764 [inline]
 nilfs_ioctl_prepare_clean_segments+0x49a/0x800 fs/nilfs2/ioctl.c:799
 nilfs_clean_segments+0x18c/0xa50 fs/nilfs2/segment.c:2525
 nilfs_ioctl_clean_segments fs/nilfs2/ioctl.c:916 [inline]
 nilfs_ioctl+0x261f/0x2780 fs/nilfs2/ioctl.c:1346
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f75d659c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75d47f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f75d6815fa0 RCX: 00007f75d659c819
RDX: 0000200000000100 RSI: 0000000040786e88 RDI: 0000000000000004
RBP: 00007f75d6632c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f75d6816038 R14: 00007f75d6815fa0 R15: 00007ffd3d2a4698
 </TASK>