loop7: detected capacity change from 0 to 4096
------------[ cut here ]------------
ret == -ENOENT
WARNING: fs/nilfs2/btree.c:2356 at nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356, CPU#0: syz.7.395/7901
Modules linked in:
CPU: 0 UID: 0 PID: 7901 Comm: syz.7.395 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:nilfs_btree_mark+0x1c9/0x210 fs/nilfs2/btree.c:2356
Code: 48 8b 05 6a 26 70 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 39 f7 63 fd cc e8 f8 64 19 fe 90 <0f> 0b 90 bd fe ff ff ff eb c3 e8 78 c7 02 08 44 89 f1 80 e1 07 80
RSP: 0018:ffffc900033b75b0 EFLAGS: 00010287
RAX: ffffffff83ac49d8 RBX: ffff88804f5fad00 RCX: 0000000000080000
RDX: ffffc9002069c000 RSI: 0000000000000973 RDI: 0000000000000974
RBP: 00000000fffffffe R08: 000000000000000e R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1009ebf673 R12: ffff88805306eba0
R13: dffffc0000000000 R14: ffff88805306eb68 R15: 0000000000000083
FS:  00007f08f60986c0(0000) GS:ffff888125459000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c018b5000 CR3: 000000003db03000 CR4: 0000000000350ef0
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+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f08f519c799
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:00007f08f6098028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f08f5415fa0 RCX: 00007f08f519c799
RDX: 0000200000000640 RSI: 0000000040786e88 RDI: 0000000000000004
RBP: 00007f08f5232c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f08f5416038 R14: 00007f08f5415fa0 R15: 00007fff49aae4b8
 </TASK>