From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: bug#35529: libdrm fails to build on armhf-linux
Date: Mon, 06 May 2019 09:15:43 +0200
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To: Mark H Weaver <mhw@netris.org>
Cc: 35529@debbugs.gnu.org


Hi Mark,

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> Mark H Weaver <mhw@netris.org> writes:
>>
>>> Hydra failed two consecutive attempts to build libdrm on armhf-linux:
>>>
>>>   https://hydra.gnu.org/build/3481547#tabs-summary
>>>
>>> Both build attempts were made on hydra-slave2, which is a Wandboard Quad
>>> based on the Freescale i.MX6 SOC.
>>
>> This has built fine on berlin.  We have a completed build for
>> /gnu/store/3c28p8b07709isd9jlcnnnyrpgz4ndz8-libdrm-2.4.97.
>
> What kind of hardware was it built on?

I=E2=80=99m not sure.  We=E2=80=99re using a few Overdrive 1000 machines th=
at have quite
a bit more RAM than the other armhf nodes.

> Note that the failure on Hydra was due to a timeout in the test suite:
>
>   https://hydra.gnu.org/build/3481547/nixlog/6/tail-reload
>
> All of the other tests completed within a few seconds, but the timeout
> tripped after 1200 seconds.  So, I'm not sure if it's simply that the
> build hardware is too slow.  It might have actually gotten stuck.
> Perhaps the test uses /dev/random (as opposed to /dev/urandom) and
> there's not enough entropy available on the build machine.

My guess is that it ran out of RAM and began trashing.  We=E2=80=99ve had at
least another build (nss) that worked fine on the Overdrive but failed
on other armhf machines.

--=20
Ricardo