[issue46070] broken subinterpreters

[Ben Steffensmeier]

Ben Steffensmeier <ben.steffensmeier at gmail.com> added the comment:

We have been seeing intermittent crashes on jep that we tracked down to the same change (d0d29655ff).

I have created a sample program using _testcapi that crashes about 50% of the time when run on Windows with Python 3.9.9. We have not been able to reproduce problems on any other OS.

See also: https://github.com/ninia/jep/issues/366

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nosy: +bsteffensmeier
Added file: https://bugs.python.org/file50494/win_py399_crash_reproducer.py

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