Re: Linux Buffer Overflow Security Exploits

Taral (taral@cyberjunkie.com)
Thu, 4 Mar 1999 13:52:43 -0600

On Thu, 04 Mar 1999, Martin Mares wrote:
>> And how do you use more than 4 gigabytes of RAM on these boring Intel
>> boxes _without_ segmentation? ;)
>> [... and don't say "ram drives" - unless you have a new meaning for that ;)]
>
> The answer is "You don't want to do this". Using >4G of RAM on a 32-bit
>CPU is brain-damaged.

Actually, PPros on suitable motherboards have 36 address lines, and so can
support 64G of RAM. However, the way to access it is via PAGING, not
segmentation.

Don't throw out segmentation though... it's very useful if properly implemented
(not intel processors).

Taral

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