Re: PCI-DMA: high address but no IOMMU

From: Andi Kleen
Date: Sun Oct 30 2005 - 10:00:46 EST


On Sunday 30 October 2005 15:29, Nishanth Aravamudan wrote:

>
> Ah, silly me, I set IOMMU_DEBUG to Y at some point without realizing.
> Taking that away removed the issues and I now only get:
>
> [ 0.000000] Checking aperture...
> [ 0.000000] CPU 0: aperture @ 4000000 size 32 MB
> [ 0.000000] Aperture from northbridge cpu 0 too small (32 MB)
> [ 0.000000] No AGP bridge found
>
> ...
>
> [ 47.737770] PCI-DMA: Disabling IOMMU.
>
> Which makes a lot more sense.

And everything works when you disable IOMMU_DEBUG? Is that the case
with the other reporters of this problem too?

-Andi
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