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On Thu, Jul 20, 2006 at 11:01:32AM +0200, Manuel Bouyer wrote:
> On Thu, Jul 20, 2006 at 06:53:22AM +0200, Quentin Garnier wrote:
> > On Thu, Jul 20, 2006 at 03:33:04AM +0200, Zafer Aydogan wrote:
> > > Memory Hole.
> >=20
> > But what for?  Graphic adapter memory?  I want to know the technical
> > reason, not the fact.
>=20
> It's for the PCI bus memory mapping. This has to be mapped in physical ad=
dress
> space, and for i386 compatibility the chipset maps it in the top of the
> first 4GB, and the corresponding RAM is mapped above 4GB (if the chipset
> supports it - some chipsets claims 4GB ram support, but ommit to says that
> it can map only 4GB minus PCI hole).

Thanks.  It had all cleared up once properly awake.  What we lack in
this situation of course is PAE support on i386.

--=20
Quentin Garnier - cube@cubidou.net - cube@NetBSD.org
"When I find the controls, I'll go where I like, I'll know where I want
to be, but maybe for now I'll stay right here on a silent sea."
KT Tunstall, Silent Sea, Eye to the Telescope, 2004.

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