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GeezerVison is showing github.com — [3.14] gh-139231: Fix estimation of available stack size for recursion limit on macOS (GH-139232) by miss-islington · Pull Request #139290 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Sep 24, 2025 •
edited by bedevere-app Bot
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Use pthread_get_stackaddr_np() and pthread_get_stacksize_np() to determine the stack address and size.
(cherry picked from commit 7016044)

Co-authored-by: Rok Mandeljc [email protected]

  • Issue: Under-estimated stack size for recursion limit (macOS + python >= 3.14) #139231

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@rokm @miss-islington
pythongh-139231: Fix estimation of available stack size for recursion…
9914c15
… limit on macOS (pythonGH-139232)

Use `pthread_get_stackaddr_np()` and `pthread_get_stacksize_np()` to determine the stack address and size.
(cherry picked from commit 7016044)

Co-authored-by: Rok Mandeljc <[email protected]>
@miss-islington
miss-islington requested a review from markshannon as a code owner September 24, 2025 10:57
@bedevere-app bedevere-app Bot added the awaiting review label Sep 24, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Sep 24, 2025
Under-estimated stack size for recursion limit (macOS + python >= 3.14) #139231
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@bedevere-app bedevere-app Bot added the skip news label Sep 24, 2025
@bedevere-app bedevere-app Bot mentioned this pull request Sep 24, 2025
gh-139231: Fix estimation of available stack size for recursion limit on macOS #139232
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@markshannon

markshannon commented Sep 24, 2025

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This is incorrect, as it doesn't add sufficient margin for the hard limit.

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@markshannon markshannon closed this Sep 24, 2025
@miss-islington
miss-islington deleted the backport-7016044-3.14 branch January 2, 2026 18:02
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@markshannon markshannon Awaiting requested review from markshannon markshannon is a code owner

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@miss-islington @markshannon @rokm
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