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

--- Comment #86 from Manuel Lauss manuel.lauss@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!