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SubjectRe: Configurable larger physical memory

On Mon, 19 Apr 1999 00:04:58 +0200, Bernd Paysan <> said:

> BTW: Is it really still necessary for the kernel to access all the
> phyiscal RAM? I understand that it has to access memory mapped IO, and
> it's own address space, but the rest?

Currently the kernel expects it, but we'll be working to allow process
data pages and page cache pages to live in unmapped memory. That will
let us provide clean support for >1G physical memory without sacrificing
user VA space.


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