[3.13] gh-137400: Fix thread-safety issues when profiling all threads (gh-137518) #137733
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…hreads (pythongh-137518) There were a few thread-safety issues when profiling or tracing all threads via PyEval_SetProfileAllThreads or PyEval_SetTraceAllThreads: * The loop over thread states could crash if a thread exits concurrently (in both the free threading and default build) * The modification of `c_profilefunc` and `c_tracefunc` wasn't thread-safe on the free threading build. (cherry picked from commit a10152f) Co-authored-by: Sam Gross <colesbury@gmail.com>
This was referenced Aug 13, 2025
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FYI, the ABI change seems fine to me. |
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There were a few thread-safety issues when profiling or tracing all threads via PyEval_SetProfileAllThreads or PyEval_SetTraceAllThreads:
c_profilefuncandc_tracefuncwasn't thread-safe on the free threading build. (cherry picked from commit a10152f)sys._setprofileallthreadsrace condition #137400