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Title: [3.14] gh-136870: fix data race in `PyThreadState_Clear` on `sys_tracing_threads` (GH-136951) by miss-islington · Pull Request #136953 · python/cpython · GitHub

Open Graph Title: [3.14] gh-136870: fix data race in `PyThreadState_Clear` on `sys_tracing_threads` (GH-136951) by miss-islington · Pull Request #136953 · python/cpython

X Title: [3.14] gh-136870: fix data race in `PyThreadState_Clear` on `sys_tracing_threads` (GH-136951) by miss-islington · Pull Request #136953 · python/cpython

Description: In free-threading, multiple threads can be cleared concurrently as such the modifications on sys_tracing_threads should be done while holding the profile lock, otherwise it can race with other threads setting up profiling. (cherry picked from commit f183996) Co-authored-by: Kumar Aditya kumaraditya@python.org Issue: gh-136870

Open Graph Description: In free-threading, multiple threads can be cleared concurrently as such the modifications on sys_tracing_threads should be done while holding the profile lock, otherwise it can race with other thre...

X Description: In free-threading, multiple threads can be cleared concurrently as such the modifications on sys_tracing_threads should be done while holding the profile lock, otherwise it can race with other thre...

Opengraph URL: https://github.com/python/cpython/pull/136953

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[3.14] gh-136870: fix data race in PyThreadState_Clear on sys_tracing_threads (GH-136951) https://github.com/python/cpython/pull/136953/files#top
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72262f4 gh-136870: fix data race in `PyThreadState_Clear` on `sys_tracing_thr… kumaraditya303 Jul 21, 2025 https://github.com/python/cpython/pull/136953/commits/72262f46e72437a8e299a7a51fa41298ed3133b0
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