Re: [Xen-devel] Re: ATI radeon fails with "iommu=soft swiotlb=force" (seen on RV730/RV740 and RS780/RS800)

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Oct 02, 2009 at 01:52:46PM +0100, Jan Beulich wrote:
> >>> Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> 01.10.09 21:21 >>>
> >The are other users of 'vmalloc_32' that look like they depend on this
> >memory being under the 4GB mark. Most of them are do video capture through
> >USB - so it probably is limited to only accessing up to 4GB.
> 
> I just went through all of the users of vmalloc_32(), and more than half of
> them seem bogus (like some legitimate use of it got cloned many times
> without really needing all the restrictions that come with this). Of course
> I can't verify that I'm right with all of those, so I'm not sure how to
> proceed with trying to do some clean up here...

I actually have some of those devices in the basement or I buy some of
them at the MIT Flea. Will dig them up and make sure they work properly.

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