Re: [MICROPATCH] Make x86_64 build work without GART_IOMMU

[Andi Kleen]

On Fri, Apr 30, 2004 at 03:40:40PM -0600, Jonathan Corbet wrote:
> > > My Radeon 9200SE goes nuts if I build a GART-enabled
> > > kernel.  Haven't figured out why...
> > 
> > Define 'nuts' and supply full boot log (with GART enabled)
> 
> Oops, sorry for the technical term...:)
> 
> "Nuts" means that the X server goes into an unkillable, 100% system time
> state.  It manages to scribble a mess onto the screen first.  Pointer moves
> (I believe that's in hardware) but the server does not respond to anything.

Most likely it is a problem with the AGP driver. I assume you have AGP 
compiled in. Does it work when you boot with agp=off ? 

IOMMU GART initialises the AGP driver early.

-Andi
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