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SubjectRe: 2.6.35-rc[1-5] + Radeon-kms: 3D graphic performance
On Fri, 23 Jul 2010 01:21:24 +0100
trapDoor <trapdoor6@gmail.com> wrote:

> Hi Alex,
> This is with regard to thread 'Blank (disconnected) screen during boot
> with latest 2.6.35-rcX kernels'.
>
> You asked me in your last e-mail if I could do a bisect to find out
> what caused a regression I mentioned about - in 3D graphic performance
> in kernels 2.6.35-rc + radeoon-kms. I started the bisect but
> unfortunately I haven't finished due to some problems I came across
> and I'm not sure if I can continue it. I'm pointing below how the
> bisect went and - if you'd like to take a look - at the last point I
> explained why I stopped.
>
> I did notice some pattern during this unfinished bisect though. And I
> think it may narrow down the regression to its source.
>
>
>

Hi Alex!

I just pasted your good/bad results in my git and did look at it with

git bisect visualize


What I would do in your case is to try
612e06ce9c7884 radeon: Fix locking in power management paths

as that is the one just before your suspected bad commit.

Definitely(well 98% certainty) you can skip any powerpc-commits that
are left as undecided... just try some commits in the drm/radeon range
there to either validate or invalidate your suspicion about f81f202402
(one of the vblank ones)

You can just do 'git reset --hard [commit you like to try]' to change
the commit you want to try next. (or use git bisect skip)

Cheers,
Flo

p.s.: oh and of course trying the patches suggested by alex in the
other mail first is probably a wise thing to do...


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