On Mon, 2002-01-14 at 23:13, Derrik Pates wrote: 
> On Mon, 14 Jan 2002, Jacek [iso-8859-2] Pop�awski wrote:
> 
> > [drm:radeon_freelist_get] *ERROR* returning NULL!
> 
> I frequently see a similar message (but s/radeon/r128/) when I try to use
> AGP on this iBook with a Rage Mobility M3, and it frequently leads up to a
> system hang here as well (not running RtCW, of course, but trying to run
> Quake or TuxRacer). I don't know if it's an AGPGART problem, or a DRM
> problem.

Probably DRM, and I think the error is only a symptom caused by the
actual hang emptying the buffer freelist. Unfortunately, it's very hard
to track down the actual cause of such problems.

> With a Rage128 descendant, of course, PCI GART can be used, but
> it's a good bit slower than 2X AGP would be...

The radeon driver also has PCI GART code, which is probably still
disabled in source on i386 due to problems. Anyway, I really don't think
AGP or not matters too much for these problems. On PPC maybe, because
our agpgart implementation is still experimental, but hardly on i386.


-- 
Earthling Michel D�nzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast
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