Re: 2.6.10-rc2-mm4

[Andrew Morton]

Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
>
> On Tue, 2004-11-30 at 09:50 -0800, Andrew Morton wrote:
> > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.10-rc2/2.6.10-rc2-mm4/
> > 
> > - Various fixes and cleanups
> > 
> > - A decent-sized x86_64 update.
> > 
> > - x86_64 supports a fourth VM zone: ZONE_DMA32.  This may affect memory
> >   reclaim, but shouldn't.
> 
> 
> what is the purpose of such a zone ??

For pages which have a physical address <4G.  I assume this was motivated
by the lack of an IOMMU on ia32e?
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