[Intel-gfx] xf86-video-intel 2.5 release planning

[Alan W. Irwin]

On 2008-07-31 13:17-0700 Jesse Barnes wrote:

> On Thursday, July 31, 2008 1:08 pm Alan W. Irwin wrote:
>> On 2008-07-31 11:56-0700 Jesse Barnes wrote:
>>> 6. No more XAA
>>> Back in 2.2, we made EXA the default acceleration architecture for the
>>> driver. It obviously wasn't quite ready back then for everything people
>>> were throwing at it, but OTOH it didn't have some of the fundamental
>>> shortcomings of XAA. It looks like it's finally ready though, so assuming
>>> Carl has EXA performance well in-hand, we should be able to delete the
>>> XAA code altogether (which will be nice since it doesn't support several
>>> features and has bugs we don't want to fix).
>>
>> Jesse is well aware of this already, but just to let others know here,
>> there continues to be long-term EXA instability problems compared to XAA
>> that show up after a week to a month of continuous use, see
>> http://bugs.freedesktop.org/show_bug.cgi?id=14464.
>
> Yeah, we've got a few similar bugs open; given that it only happens with EXA
> it's likely to be a render accleration bug (Option "ExaNoComposite" "true"
> would eliminate the crashes in that case) or an interaction between the EXA
> code and the 3D driver.  I'll add this one to the blocker list though; I
> don't want to remove XAA until EXA is stable.

Thanks for that suggestion.  I have started X again using Option
"ExaNoComposite" "true".  I will try as much as possible to leave X on
continuously for my normal daily workload to get good long-term tests.  Of
course, because such long time spans are involved before the lockup occurs
(if it is going to occur at all with this option) it should likely be quite
a while before I can report anything.

Alan
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Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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