GNU bug report logs - #50617
[core-updates-frozen] CMake fails to build on i686-linux

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Message #22 received at 50617-done <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Guillaume Le Vaillant <glv <at> posteo.net>
Cc: 50617-done <at> debbugs.gnu.org
Subject: Re: bug#50617: [core-updates-frozen] CMake fails to build on
 i686-linux
Date: Tue, 21 Sep 2021 10:21:38 +0200

Hi,

Guillaume Le Vaillant <glv <at> posteo.net> skribis:

> Ludovic Courtès <ludovic.courtes <at> inria.fr> skribis:
>
>> On ‘core-updates-frozen’, CMake has one test failure on i686-linux when
>> building on berlin (e.g., <https://ci.guix.gnu.org/build/790602/log/raw>):
>>
>> --8<---------------cut here---------------start------------->8---
>> 545/558 Test #518: RunCMake.CPack_TXZ ................................***Failed    3.79 sec
>> [...]
>> --8<---------------cut here---------------end--------------->8---
>>
>> I cannot reproduce it on hardware with 32 cores.  I suspect it has to do
>> with the number of threads used for xz compression, which defaults to
>> the number of cores, and some of the build machines on berlin have way
>> more cores.
>>
>> Ludo’.
>
> I tried a few times on a machine with 16 cores, and I can't reproduce
> either. The build succeeded every time.

Since the bug only seems to manifest on specific machines for reasons
that escape me, I went ahead and arranged to just skip it in commit
f762d63ec072500cd327ec5342c2f5434c267222.

Ludo’.

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