Re: staging evaluation in progress

[Marius Bakke]

Hello Mark,

Mark H Weaver <address@hidden> writes:

> Marius Bakke <address@hidden> writes:
>
>> Mark H Weaver <address@hidden> writes:
>>
>>> Hi Marius,
>>>
>>> Marius Bakke <address@hidden> writes:
>>>
>>>> I just started a 'staging' evaluation:
>>>>
>>>> https://hydra.gnu.org/jobset/gnu/staging
>>>>
>>>> Fairly minor changes this round, highlights include Wayland 1.15 and
>>>> GStreamer 1.14.  We narrowly missed Mesa 17.3.9 which was scheduled for
>>>> today but delayed, hopefully 17.3.8 doesn't introduce any new bugs.
>>>>
>>>> Results should start ticking in tomorrow.
>>>
>>> The main issue I see so far is that 'gst-plugins-base' seems to
>>> consistently fail the "elements/opus" test on i686-linux.  It failed
>>> twice in a row, anyway:
>>>
>>>   https://hydra.gnu.org/build/2635798
>>
>> I can reproduce this failure locally, and could not find related bug
>> reports or git commits upstream.  For now I downgraded to 1.12.5 so we
>> can proceed, and will report the i686 and armhf issues upstream.
>
> Instead of downgrading gstreamer, I think it would be better to simply
> disable that test on i686 for now.  Most likely, it is due to tests that
> are intolerant of the double rounding that occurs on i686 without SSE2,
> where the old x87 FP instructions are used instead.  The double rounding
> happens because x87 operations are performed on 80-bit double-extended
> precision floating-point numbers, which must then be rounded a second
> time when they are converted to 64-bit doubles as used in C.
>
> What do you think?

Thanks for the insight here.  My rationale for downgrading was that
there are a handful other tests that fail on armhf; but I just realized
that we haven't had "gst-plugins-base" working on armhf for a long time.

1.12.5 is also "newer" than 1.14.0.  Since there are problems on aarch64
too I went ahead and started the branch with 1.12.5.

Let's revisit this issue on 'core-updates'.

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