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Title: [3.14] gh-140431: Fix GC crash due to partially initialized coroutines (gh-140470) by miss-islington · Pull Request #140504 · python/cpython · GitHub

Open Graph Title: [3.14] gh-140431: Fix GC crash due to partially initialized coroutines (gh-140470) by miss-islington · Pull Request #140504 · python/cpython

X Title: [3.14] gh-140431: Fix GC crash due to partially initialized coroutines (gh-140470) by miss-islington · Pull Request #140504 · python/cpython

Description: The make_gen() function creates and tracks generator/coro objects, but doesn't fully initialize all the fields. At a minimum, we need to initialize all the fields that may be accessed by gen_traverse because the call to compute_cr_origin() can trigger a GC. (cherry picked from commit 574405c) Co-authored-by: Sam Gross colesbury@gmail.com Issue: gh-140431

Open Graph Description: The make_gen() function creates and tracks generator/coro objects, but doesn't fully initialize all the fields. At a minimum, we need to initialize all the fields that may be accessed by gen_tr...

X Description: The make_gen() function creates and tracks generator/coro objects, but doesn't fully initialize all the fields. At a minimum, we need to initialize all the fields that may be accessed by ge...

Opengraph URL: https://github.com/python/cpython/pull/140504

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fa8895b gh-140431: Fix GC crash due to partially initialized coroutines (gh-1… colesbury Oct 23, 2025 https://github.com/python/cpython/pull/140504/commits/fa8895bc17734f5926d41a785f008db08c13da37
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