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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Crash in _PyXI_ApplyErrorCode()","articleBody":"# Crash report\n\n### Bug description:\n\nThis is a problem in Python/crossinterp.c, as exposed by the _interpreters module.\n\nreproducer:\n\n1. interp is running as \"main\" in thread 1\n2. thread 2 calls `_PyXI_Enter()`, which emits the `_PyXI_ERR_ALREADY_RUNNING` error code\n3. thread 1 finishes\n4. thread 2 calls `_PyXI_ApplyError()`\n5. `_PyXI_ApplyError()` calls `_PyInterpreterState_FailIfNotRunning()` to raise the exception, but it doesn't raise anything\n\nI noticed this while working on gh-126914.\n\n### CPython versions tested on:\n\n3.14\n\n### Operating systems tested on:\n\n_No response_\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-126988\n* gh-126995\n* gh-127112\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/ericsnowcurrently","@type":"Person","name":"ericsnowcurrently"},"datePublished":"2024-11-18T23:44:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/126986/cpython/issues/126986"}