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The GPU-freshness report left a comment explaining why a rise the oracle saw is not one the probe must have seen. It did not say what still covers the property that assertion was reaching for, so the obvious next reader restores a hardware assertion and reintroduces the flake. It is covered deterministically, per sample, by the scripted probes: `probe_with_a_single_batch_jump_is_frozen` drives `GPU Energy` to a different value at every sample and asserts each one is exactly what the rule was handed, and `probe_with_one_die_live_and_one_frozen_is_frozen` does the same. A sampler that cached one reading fails those on sample 1, on every host, with no dependence on what the hardware happens to do. So the earlier claim that the report gave up that coverage was wrong: it gave up nothing, and driving GPU work inside the probe's window to restore a hardware assertion is unnecessary. The comment now says so, and says why no sound hardware witness exists on the CI host anyway -- its CPU rails are frozen and its GPU rail is activity-driven. Comment only; no behaviour change. Co-Authored-By: Claude Opus 5 <[email protected]> |
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