A PR upgrading pip's wheel on 3.8 (which shouldn't really affect the test_mkfifo_dir_fd) triggered a segfault on the macOS test run.

https://github.com/python/cpython/actions/runs/4269978257/jobs/7433511913#step:6:651

Looking through the issue tracker, I don't see that failure mode reported as is and I'm noting it here mostly since I'm not sure if it's in any way related to this ongoing thing or if it should be a separate issue. It doesn't seem like it is, but I've not followed the failure discussions here closely to know for sure. 😅

Originally posted by @pradyunsg in #101981 (comment)

We've also seen this happen on certain other runs as well since, including a re-run on the aforementioned PR.

Linked PRs

• [3.8] GH-102306 Avoid GHA CI macOS test_posix failure by using the appropriate macOS SDK #102307
• [3.7] GH-102306 Avoid GHA CI macOS test_posix failure by using the appropriate macOS SDK. #102427