Re: memory

Khimenko Victor (khim@sch57.msk.ru)
Sat, 25 Apr 1998 15:45:22 +0400 (MSD)

23-Apr-98 22:04 you wrote:
>
> I have a feeling this is a FAQ, but I couldn't find it..
>
> How much RAM is linux supposed to be able to handle? I was trying to
> run 2.1.91 on a x86-box with 2GB RAM, and it crashed (rebooted)
> instantly (after LILO loaded the kernel) with mem=2048M and
> mem=1024M. It runs fine with mem=512M. I haven't tried anything
> between 512 and 1024 yet.
>
You could find option to support more then 950Mb in include/asm-i386/page.h

> Are there any plans to support 4GB RAM (on x86)? And/or more than 4GB?
> I've been told the architecture supports 64GB maximum.
>
Linux could support 3.9Gb (or something like). You could not have more then
4Gb physical RAM with IA32. Merced will solve this problem :-)

P.S. And there are 64Tb (not 64Gb) limit of "virtual" RAM (with usage of
segments and Linux does not use segments much), but still only 4Gb
physical RAM+ROM+...

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