[issue39776] Crash in decimal module in heavy-multithreaded scenario

[Evgeny Boytsov]

Evgeny Boytsov <boytsovea at yandex.ru> added the comment:

Your callstack is very strange. At line 30 of main.cpp GIL is obviously locked:


   // importing module in this tread
   gstate = PyGILState_Ensure();
   py::module crash_test = py::module::import( "crash_test" ); <-- import
   PyGILState_Release( gstate );

I suppose that there is something wrong with your setup. Maybe - wrong working directory for the main executable, which doesn't contain crash_test.py

Also I've tried to revert this patch https://github.com/python/cpython/pull/5278 for 3.7. It makes problem to disappear, 1 hour of stable work under ASAN. So I suppose it is the source of the bug.

I will try to tweak _testembed.c.

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resolution:  -> not a bug

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<https://bugs.python.org/issue39776>
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