[Bug 28402] random radeon/kms/drm related freezes with kernel 2.6.34

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=28402

--- Comment #86 from Manuel Lauss <manuel.lauss at gmail.com> 2010-10-24 05:03:12 PDT ---
(In reply to comment #85)
> Created an attachment (id=39651)
 View: https://bugs.freedesktop.org/attachment.cgi?id=39651
 Review: https://bugs.freedesktop.org/review?bug=28402&attachment=39651

> Make sure MC vram map is >= pci aperture size
> 
> Ok, I think I found the root cause in this bug.  The vram map in the memory
> controller needs to be >= the pci aperture size.  For the systems here, the
> vram size is 64 MB and the aperture size is 128 MB so the vram map in the mc
> needs to be at least 128 MB.  However, it's getting set to 64 MB.

The patch fixes this long-standing issue for me.  System is rock-solid with
4xAGP and all sorts of firefox and 3d abuse didn't freeze it.  Thank you!

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