STINNER Victor <vstin...@python.org> added the comment:
The race condition can be reproduced on Linux using a lot of parallel test
worker processes. For example, I reproduce it on my laptop (8 CPUs) using:
$ ./python -m test test__xxsubinterpreters -F -j30
...
0:00:26 load avg: 17.86 [ 24] test__xxsubinterpreters passed
0:00:26 load avg: 17.86 [ 25] test__xxsubinterpreters passed
0:00:26 load avg: 17.86 [ 26] test__xxsubinterpreters passed
0:00:27 load avg: 17.86 [ 27/1] test__xxsubinterpreters failed
Exception in thread Thread-8:
Traceback (most recent call last):
File "/home/vstinner/python/master/Lib/threading.py", line 944, in
_bootstrap_inner
self.run()
File "/home/vstinner/python/master/Lib/threading.py", line 882, in run
self._target(*self._args, **self._kwargs)
File "/home/vstinner/python/master/Lib/test/test__xxsubinterpreters.py", line
51, in run
interpreters.run_string(interp, dedent(f"""
RuntimeError: unrecognized interpreter ID 46
test test__xxsubinterpreters failed -- Traceback (most recent call last):
File "/home/vstinner/python/master/Lib/test/test__xxsubinterpreters.py", line
492, in test_subinterpreter
self.assertTrue(interpreters.is_running(interp))
AssertionError: False is not true
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue37224>
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