[Bug 34313] RV770 lock-up with OpenGL

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34313

--- Comment #22 from Bob Ham <rah at bash.sh> 2011-05-27 09:47:15 PDT ---
I've done a bisect on GPU lockups with warzone 2100.  During this bisect there
were some kernels that displayed bad GL rendering (lots of artifacts,
flickering textures, etc.), some of which locked up the GPU and some of which
didn't.  I've treated these kernels as 'good' if they do not lock up because
bad rendering is not a problem with recent kernels so it's likely to have been
a different issue.

The last commit identified by the bisect caused the kernel to behave in a
strange way with various bits timing out (particular on file system access) as
soon as X was loaded, prior to any GL activity.  The system is unusable and the
time outs continue until the machine locks hard.  I'll attached a log of the
kernel's output.  I'm not sure if this is the bug I'm chasing.  Marking the
commit as "skip" during the bisect unfortunately produces the following report:

There are only 'skip'ped commits left to test.
The first bad commit could be any of:
b7ae5056c94a8191c1fd0b5697707377516c0c5d
5480f727dc4c049eb46b191bfaeb034067aa6835
We cannot bisect more!


The possibilities are as follows:

Merge branch 'drm-fixes' of /home/airlied/kernel/linux-2.6 into drm-core-next
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b7ae5056c94a8191c1fd0b5697707377516c0c5d

Revert "drm/radeon/kms: remove some pll algo flags"
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=5480f727dc4c049eb46b191bfaeb034067aa6835

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