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bug#55706: 29.0.50; files test fails about 20% of the time
From: |
Michael Albinus |
Subject: |
bug#55706: 29.0.50; files test fails about 20% of the time |
Date: |
Tue, 31 May 2022 11:57:38 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Lars Ingebrigtsen <larsi@gnus.org> writes:
Hi Lars,
> I've now run a number of
>
> for i in `seq 1 40`; do make -j64 check; done > /tmp/j64.out 2>/tmp/j64.err
>
> variations, and it varies how much it fails. With -j4 and lower, it
> never fails. With j8 to j16 it fails about 1 in 10 times, and with -j32
> it fails 40% of the time. (Take numbers with a grain of salt.)
I have less cores in my laptop, so I have applied your code with -j8. It
failed exactly one time. Not bad, so I'm able to reproduce it.
> So there seems to be something racing with this test -- but only this
> test. Pretty bizarre.
I will instrument both the test function and file-in-directory-p in
order to get more information about the reason. Don't expect results
soon, these days I'm slow in working for Emacs.
Best regards, Michael.