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SubjectRe: [Bug #12872] pwc mmap always fails with EAGAIN
On Mon, 23 Mar 2009 10:49:45 +0000
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> > > Rename the pagerange_is_ram() to pat_pagerange_is_ram() and
> > > add the "track legacy 1MB region as non RAM" condition.
>
> But the lowest 640K are most definitely RAM.

not all of it ;)

"ram" is defined as "the kernel memory allocator knows about it and
would hand it out" in this context; BIOS owned areas are not "ram" in
this context.
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org


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