[Mesa-dev] Random results in piglit spec/!OpenGL 1.1/read-front on r600g

[Martin Andersson]

On Fri, Jun 7, 2013 at 12:37 AM, Marek Olšák <maraeo at gmail.com> wrote:
> There are bugs in both piglit and DRI2. I haven't looked into the
> issue, but Paul Berry seems to be working on it.
>
> See:
> http://lists.freedesktop.org/archives/piglit/2013-May/005880.html
> http://lists.freedesktop.org/archives/mesa-dev/2013-May/039985.html
>
> Marek
>

ok, it is good to know that it is being worked on, thanks

//Martin

> On Fri, Jun 7, 2013 at 12:04 AM, Martin Andersson <g02maran at gmail.com> wrote:
>> I get random results when I run the spec/!OpenGL 1.1/read-front test.
>> Sometimes it passes and sometimes it failes, it mostly fails though.
>> When it fails the observed values are random. I have an AMD 6950,
>> running mesa git ce67fb4715e0c2fab01de33da475ef4705622020 and kernel
>> 3.10-rc4.
>>
>> If I insert a delay before the piglit_swap_buffers call in the test
>> (read-front.c) it always passes. It does not matter where I put the
>> delay in the piglit_dispay function, as long as it is before the
>> piglit_swap_buffers call. So it seems to be a race between the
>> swap_buffers_call and some earlier call (some piglit initialization
>> perhaps?)
>>
>> Does anyone know what could be wrong or how I could debug it further?
>>
>> //Martin
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