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SubjectRe: Memory problem with bttv driver
On Tue, 15 Jan 2002 14:20:17 +0100
Gerd Knorr <kraxel@bytesex.org> wrote:

> On Tue, Jan 15, 2002 at 12:14:24PM +0100, Stephan von Krawczynski wrote:
> > On 15 Jan 2002 10:17:03 GMT
> > Gerd Knorr <kraxel@bytesex.org> wrote:
> >
> > > MM wise it shouldn't make a difference whenever you are using 0.7.83 or
> > > 0.7.88 (I've mailed 0.7.88 patches to macelo for 2.4.18 btw). The 0.8.x
> > > versions have a complete different way to do the memory management.
> >
> > No vmallocs?
>
> Yes. Instead of remapping vmalloced kernel memory it gives you shared
> anonymous pages, then does zerocopy DMA using kiobufs. You may run in
> trouble with >4GB machines.

Interesting.
What's the problem on > 4GB ?

Regards,
Stephan

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