Re: Memory problem with bttv driver

Gerd Knorr (kraxel@bytesex.org)
Tue, 15 Jan 2002 14:20:17 +0100

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.

Gerd

-- 
#define	ENOCLUE 125 /* userland programmer induced race condition */
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