NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5028 at fs/nilfs2/sufile.c:539 nilfs_sufile_set_segment_usage+0x52d/0x6b0 fs/nilfs2/sufile.c:539 Modules linked in: CPU: 0 PID: 5028 Comm: segctord Not tainted 6.4.0-next-20230630-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:nilfs_sufile_set_segment_usage+0x52d/0x6b0 fs/nilfs2/sufile.c:539 Code: 95 4f fe 48 8b 6c 24 48 48 85 ed 0f 85 5b ff ff ff e9 63 ff ff ff e8 e2 95 4f fe e8 bd 01 cb fd e9 db fe ff ff e8 d3 95 4f fe <0f> 0b e9 04 fe ff ff e8 37 c7 a2 fe e9 b5 fb ff ff e8 2d c7 a2 fe RSP: 0018:ffffc90003aefa78 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888077ef2160 RCX: 0000000000000000 RDX: ffff8880217cbb80 RSI: ffffffff83357ddd RDI: 0000000000000005 RBP: ffff88807bd49060 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000001 R12: 0000000000000000 R13: 1ffff9200075df54 R14: ffff888077ef25e8 R15: 0000000064a16ece FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc40f16c418 CR3: 000000000c775000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nilfs_segctor_update_segusage fs/nilfs2/segment.c:1473 [inline] nilfs_segctor_do_construct+0x1888/0x72f0 fs/nilfs2/segment.c:2103 nilfs_segctor_construct+0x8e3/0xb30 fs/nilfs2/segment.c:2411 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2519 [inline] nilfs_segctor_thread+0x3c7/0xf30 fs/nilfs2/segment.c:2602 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308