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

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Oct 24 07:23:02 PDT 2010


--- Comment #87 from Da Fox <da_fox at mad.scientist.com> 2010-10-24 07:23:01 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.

I've tested the patch from Comment 79 for over a week now, without any issues
(as expected). The patch from Comment 82 is quite similar so I assume that
would work too. I'm going to test this patch now on a fresh 2.6.36.

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