Review round 4 X21 and Josh's levers 5 and 6 (4 October 2026 evening):
- src/watchdog.rs: CardWatch (no status line for 90 s, or hash rate 0 for 60 s while the node is synced: one
restart, then the card is marked faulted with the reason in the UI and the log; the miner's own worker restarts
suspend both rules until ready, so there are no double restarts; exit 43 counts as a watchdog restart) and
NodeWatch (our node silent for 120 s is restarted in-process through the restart kind the remote jobs use, with a
growing delay). State machines with no clock; 11 unit tests replay recorded STATUS and WORKER FAULT lines.
- engine.rs reads STATUS mismatched=, faults= and the WORKER FAULT lines onto the card (faults, mismatched, message);
a faulted card is not restarted until the user changes its settings or resumes mining; other cards keep mining.
- site/miners.html (build.mjs, scrubbed like /bench, rows from site/miner-bench.json): card, generator version, best
MH/s, MH per watt where measured, miner version, date, source, measured by the team or reported by the fleet. In the
navigation beside the engineering log on every page and in the sitemap. One line says there is no other miner to
compare with.
- tools/reliability: fake-worker.mjs (the serve protocol, misbehaving on command), run.mjs (miner guards on a private
test network, ports 29950+) and app-run.mjs (the app watchdog end to end, ports 29960+).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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