GNU bug report logs - #21620
GMP 6.0.0a intermittent test failure on armhf

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Message #44 received at 21620 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Andreas Enge <andreas <at> enge.fr>
Cc: Mark H Weaver <mhw <at> netris.org>, 21620 <at> debbugs.gnu.org,
 Andreas Enge <andreas.enge <at> inria.fr>
Subject: Re: bug#21620: tests/mpz/reuse intermittently fails on armhf-linux-gnu
Date: Fri, 09 Oct 2015 10:27:07 +0200

Andreas Enge <andreas <at> enge.fr> skribis:

> On Wed, Oct 07, 2015 at 10:32:43PM +0200, Ludovic Courtès wrote:
>> Do you think it’s a likely problem?  Andreas, could you try again on
>> your Novena with 2 cores turned off?
>
> I have trouble believing the explanation of overheating. The gmp test
> suite is carried out sequentially (they are not yet using the parallel
> test harness of the autotools). So one could only imagine that the build
> itself was faulty, but should then the test not fail consistently afterwards?
> If I understood correctly, you used one build and ran the same test
> over and over again. On the other hand, since the machine also serves as a
> build machine, it is possible that some other package was built at the same
> time as the tests were carried out, which may have contributed to heating.

Yes.

I think the only way to test the hypothesis is to turn off 2 processors
and run that test in a loop again, and/or to do that on a different
ARMv7 platform altogether.

Ludo’.

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