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Title: fix: guard debug stack walk by windsornguyen · Pull Request #716 · MagicStack/uvloop · GitHub

Open Graph Title: fix: guard debug stack walk by windsornguyen · Pull Request #716 · MagicStack/uvloop

X Title: fix: guard debug stack walk by windsornguyen · Pull Request #716 · MagicStack/uvloop

Description: Summary Guard uvloop’s debug stack capture on Python 3.14 by walking frames defensively instead of calling traceback.walk_stack() directly. This avoids AttributeError / segfaults when async generat...

Open Graph Description: Summary Guard uvloop’s debug stack capture on Python 3.14 by walking frames defensively instead of calling traceback.walk_stack() directly. This avoids AttributeError / segfaults when async generat...

X Description: Summary Guard uvloop’s debug stack capture on Python 3.14 by walking frames defensively instead of calling traceback.walk_stack() directly. This avoids AttributeError / segfaults when async generat...

Opengraph URL: https://github.com/MagicStack/uvloop/pull/716

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uvloop debug mode crashes on Python 3.14 during async generator finalization (traceback.walk_stack sees non-frame object) #715 https://patch-diff.githubusercontent.com/MagicStack/uvloop/issues/715
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January 14, 2026 00:26https://patch-diff.githubusercontent.com/MagicStack/uvloop/pull/716#commits-pushed-68af9b3
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fix(debug): guard stack extractionhttps://patch-diff.githubusercontent.com/MagicStack/uvloop/pull/716/commits/68af9b3984a1ebb378ab68bafeb71c9bb9794b0c
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fix(debug): lock cb handle countershttps://patch-diff.githubusercontent.com/MagicStack/uvloop/pull/716/commits/f9754dacee49a82e7b9b958292201fd81c49618c
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