{"id":"write-meta-no-fsync","text":"`PageManager._write_meta` calls `flush()` but not `os.fsync()`, so metadata updates (`next_free_page`, `free_list_head`) are not durable against power loss — compounding the WAL bypass with a durability gap on the direct write path.","truth_value":"OUT","source":"entries/2026/05/29/topic-free-list-corruption-risks.md","source_url":"","source_hash":"","justifications":[],"dependents":["btree-mutation-fsync-is-asymmetric","page-manager-metadata-durability-gap"],"metadata":{"_retracted":true},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"write-meta-no-fsync","truth_value":"OUT","reason":"retracted premise"}]}}