Dev Tools · 1h ago
FaultBox tool helps debug unreproducible storage corruption bug
A developer building NodeDB-Lite and PageDB encountered a storage corruption bug that could not be reproduced through unit tests or controlled benchmarks. They created FaultBox, a black-box recorder that captures store state at the moment of failure, enabling root cause analysis. The tool helped identify the bug after previous theories and fixes failed.
Meridian48 take
This is a practical case study in debugging heisenbugs, but the tool's utility beyond this specific project remains unproven.
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How FaultBox helped me solve a storage corruption bug I couldn't reproduce →
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debuggingstorage-corruption