dbff8ffba3
The host stray-capture cost function charged illegal UTF-8 bytes (0x80-0xC1,
0xF5-0xFF, and orphaned multibyte leads) the raw 1, but toString('utf8')
renders each as U+FFFD (3 serialized bytes). A b"\xff" flood was undercounted
threefold, so the residual grew to a full budget's worth of raw bytes before
flushing and, near a large maxLogBytes, expanded toward a ~1 GiB peak in the
flush's concat plus toString. Replace serializedBufferCost with accrueStrayCost,
a cross-chunk UTF-8 walker that charges each byte its decoded serialized width;
carry its sequence state on each StrayBuffer.
The child _LogStream had the same-family bug: its early-flush trigger compared
_pending_chars (character count) against remaining (a serialized-byte budget),
so a 30M-NUL newline-free flood stayed under a 50 MB char trigger yet encoded to
~180 MB at settlement, breaching RLIMIT_AS as worker-exit. Track _pending_cost
via the _JSON_BYTE_COST table and trigger on it; keep _pending_chars for the
char-based slice bounds.
Correct the note's surrogate claim (only the string-walking jsonStringCostUpTo
charges a lone surrogate six bytes; the byte walker never sees one). Shrink the
post-truncation fixture below PIPE_BUF for a deterministic single callback. List
the shared stdout/stderr budget as a third honest fail-before exception
(cross-pipe arrival timing is nondeterministic). Add illegal-UTF-8,
broken-multibyte, and child-log-flood regression tests; sync the zh pair.
6 lines
566 B
YAML
6 lines
566 B
YAML
# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
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# side as of the last confirmed-consistent state. Both languages carry equal authority;
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# after editing either side, bring the other along and re-record with:
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# pnpm run verify-translation-pairing --write .agents/notes/implemented/bug-fix/2026-07-31-code-runtime-python-settlement-fixes.md
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2026-07-31-code-runtime-python-settlement-fixes.md: b667ec543512ede1c1fe0402122943e6a13f7488
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2026-07-31-code-runtime-python-settlement-fixes.zh.md: f21464d4e96a42552c96e27cb222ac31b6bf2e75
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