[issue18049] Re-enable threading test on macOS

[Kyle Stanley]

Kyle Stanley <aeros167 at gmail.com> added the comment:

Ronald, is it feasible that the changes made in https://github.com/python/cpython/pull/14748/files to THREAD_STACK_SIZE in Python/thread_pthread.h could be causing intermittent failures for the Azure macOS PR tests?

In a recent PR (https://github.com/python/cpython/pull/15651), test_pending_calls_race (test.test_concurrent_futures.ThreadPoolWaitTests) seemed to be timing out. See the build log for more details:  https://dev.azure.com/Python/cpython/_build/results?buildId=49786&view=logs&j=18d1a34d-6940-5fc1-f55b-405e2fba32b1.

It doesn't appear to be causing consistent failures for Azure, but the latest commit to PR-15651 was only involving a formatting change to the news entry, so it should not have had any influence on the test that timed out. Prior to that commit, there were no CI failures.

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nosy: +aeros167

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