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Re: why the restriction on maximum physical memory
On Fri, 29 Jun 2001, Raghav P wrote:
> As I understand from the kernel VM docs; Linux cannot recognise more than 1
> GB of physical memory on Intel and reason given is
>
> since all physical pages must be mapped to kernel addresses between
> PAGE_OFFSET(~3GB) and 4GB (on 32 bit machines)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Look at the document on http://linux-mm.org/
... especially the notes telling you that this
old assumption is no longer valid ;)
Rik
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