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Title: gh-146102：Fix cross-interpreter NotShareableError ref handling by lpyu001 · Pull Request #151578 · python/cpython · GitHub

Open Graph Title: gh-146102：Fix cross-interpreter NotShareableError ref handling by lpyu001 · Pull Request #151578 · python/cpython

X Title: gh-146102：Fix cross-interpreter NotShareableError ref handling by lpyu001 · Pull Request #151578 · python/cpython

Description: This fixes two ownership issues: _ensure_notshareableerror() now returns immediately when the current raised exception is already a NotShareableError. The function had restored ctx to the thread state but then continued using it, even though ownership had been handed back. _PyXI_UnwrapNotShareableError() now decrefs the exception taken from the thread state if _PyXI_InitFailure() fails, avoiding a leaked exception reference on that error path. The _pop_preserved() shadowed-variable leak is already fixed on this branch, so this PR does not touch it. glist：https://gist.github.com/devdanzin/a56b8cb579b1950b4206e8a42d6be650 Issue: gh-146102

Open Graph Description: This fixes two ownership issues: _ensure_notshareableerror() now returns immediately when the current raised exception is already a NotShareableError. The function had restored ctx to the thread s...

X Description: This fixes two ownership issues: _ensure_notshareableerror() now returns immediately when the current raised exception is already a NotShareableError. The function had restored ctx to the thread s...

Opengraph URL: https://github.com/python/cpython/pull/151578

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fcf7a5f Fix cross-interpreter NotShareableError ref handling lpyu001 Jun 17, 2026 https://github.com/python/cpython/pull/151578/commits/fcf7a5f05f9f42840be35baef843498225fcace5
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