GeezerVison is showing github.com — [3.14] gh-144446: Fix some frame object thread-safety issues (gh-144479) by miss-islington · Pull Request #144546 · python/cpython
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miss-islington
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Feb 6, 2026
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edited by bedevere-app
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Fix thread-safety issues when accessing frame attributes while another
thread is executing the frame:
-
Add critical section to frame_repr() to prevent races when accessing
the frame's code object and line number
-
Add _Py_NO_SANITIZE_THREAD to PyUnstable_InterpreterFrame_GetLasti()
to allow intentional racy reads of instr_ptr.
-
Fix take_ownership() to not write to the original frame's f_executable
(cherry picked from commit 5bb3bbb)
Co-authored-by: Sam Gross [email protected]
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…-144479)
Fix thread-safety issues when accessing frame attributes while another
thread is executing the frame:
- Add critical section to frame_repr() to prevent races when accessing
the frame's code object and line number
- Add _Py_NO_SANITIZE_THREAD to PyUnstable_InterpreterFrame_GetLasti()
to allow intentional racy reads of instr_ptr.
- Fix take_ownership() to not write to the original frame's f_executable
(cherry picked from commit 5bb3bbb)
Co-authored-by: Sam Gross <[email protected]>
This was referenced Feb 6, 2026
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