NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6290 at fs/nilfs2/btree.c:2273 nilfs_btree_assign+0x968/0xde0 fs/nilfs2/btree.c:2273
Modules linked in:
CPU: 1 PID: 6290 Comm: segctord Not tainted 6.1.0-syzkaller-13139-gf9ff5644bcc0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:nilfs_btree_assign+0x968/0xde0 fs/nilfs2/btree.c:2273
Code: 00 00 00 00 e9 93 f8 ff ff e8 a4 3d 57 fe 44 89 e6 bf fe ff ff ff e8 47 3a 57 fe 41 83 fc fe 0f 85 9a fb ff ff e8 88 3d 57 fe <0f> 0b e9 8e fb ff ff e8 7c 3d 57 fe 48 89 eb 48 c7 44 24 28 18 00
RSP: 0018:ffffc90004ebf9f8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888018903a80 RSI: ffffffff832a1378 RDI: 0000000000000005
RBP: ffff88807328ccf8 R08: 0000000000000005 R09: 00000000fffffffe
R10: 00000000fffffffe R11: 0000000000092001 R12: 00000000fffffffe
R13: ffffc90004ebfc78 R14: ffffc90004ebfcb8 R15: 0000000000000042
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5e5c793140 CR3: 000000001ff21000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 nilfs_bmap_assign+0x87/0x180 fs/nilfs2/bmap.c:382
 nilfs_segctor_update_payload_blocknr fs/nilfs2/segment.c:1595 [inline]
 nilfs_segctor_assign fs/nilfs2/segment.c:1629 [inline]
 nilfs_segctor_do_construct+0x1b5b/0x6b30 fs/nilfs2/segment.c:2056
 nilfs_segctor_construct+0x8e3/0xb30 fs/nilfs2/segment.c:2379
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2487 [inline]
 nilfs_segctor_thread+0x3c7/0xf30 fs/nilfs2/segment.c:2570
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>