{"id":"free-page-stores-only-seven-bytes","text":"Each free-list page occupies a full page (default 4096 bytes) but stores only 7 bytes of useful data (3-byte zero header + 4-byte next pointer); the remaining bytes are zero padding from `write_page`.","truth_value":"IN","source":"entries/2026/05/29/topic-free-list-fragmentation.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"free-page-stores-only-seven-bytes","truth_value":"IN","reason":"premise"}]}}