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chfast opened this issue May 14, 2025 · 0 comments
Open

t8n produces truncated trace #1222

chfast opened this issue May 14, 2025 · 0 comments
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chfast commented May 14, 2025

For an execution with a very long trace, the trace output file of evmone-t8n --trace may be truncated.

Some example tests with very long trace can be found in ethereum/execution-spec-tests#1591.

With EEST's fill you can generate evmone-t8n invocation. Add --trace to the t8n.sh.

The bug may be related to stream buffering. We are redirecting standard output to a file with https://github.com/ethereum/evmone/blob/master/test/t8n/t8n.cpp#L169-L181. Maybe we need to properly close it?

Reported by @danceratopz.

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