NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7257 at fs/nilfs2/btree.c:2282 nilfs_btree_assign+0xa75/0xd00 Modules linked in: CPU: 0 PID: 7257 Comm: segctord Not tainted 6.2.0-rc4-syzkaller-00077-gd368967cb103 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:nilfs_btree_assign+0xa75/0xd00 fs/nilfs2/btree.c:2282 Code: 00 0f 85 a4 02 00 00 44 89 f8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d7 f5 3b fe 4c 8b 74 24 38 eb a5 e8 cb f5 3b fe <0f> 0b 41 bf fe ff ff ff 4c 8b 74 24 38 eb 91 44 89 f9 80 e1 07 80 RSP: 0018:ffffc9000d897540 EFLAGS: 00010293 RAX: ffffffff834fe625 RBX: ffff888070bac690 RCX: ffff88801f20ba80 RDX: 0000000000000000 RSI: 00000000fffffffe RDI: 00000000fffffffe RBP: ffffc9000d897670 R08: ffffffff834fdf8f R09: ffffed100ecebccc R10: ffffed100ecebccc R11: 1ffff1100ecebccb R12: ffff8880290c8780 R13: dffffc0000000000 R14: 0000000000000001 R15: 00000000fffffffe FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fce3cb99000 CR3: 000000007e789000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_bmap_assign+0x87/0x150 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+0x38c2/0x6f80 fs/nilfs2/segment.c:2056 nilfs_segctor_construct+0x143/0x8d0 fs/nilfs2/segment.c:2379 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2487 [inline] nilfs_segctor_thread+0x59e/0x11c0 fs/nilfs2/segment.c:2570 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308