This is a known problem with some biosen (especially Award), which have
stopped supporting e801 memory detection in favor of e820. Without e801
support, the 2.2 kernel has to fall back to 88 detection, which is limited
to 64M.
BE WARNED: Using mem= may result in the kernel attempting to overwrite
shadowed BIOS memory or other system memory areas. The documentation
suggests (and I highly recommend) trimming the top 1M off of the mem=
parameter to avoid this problem.
Nathan Zook
> -----Original Message-----
> From: glouis@dynamicro.on.ca [mailto:glouis@dynamicro.on.ca]
> Sent: Monday, March 20, 2000 5:25 AM
> To: Nicholas Vinen
> Cc: linux-kernel@vger.rutgers.edu
> Subject: Re: 2.2.15-pre15 detects my memory wrong?
>
>
> On Sun, 19 Mar 2000, Nicholas Vinen wrote:
>
> > Unless I add "mem=256M" to my boot arguments,
> 2.2.15-pre15 thinks I
> > have 64M. Did I configure something wrong? I copied my
> 2.2.13 config and
> > edited it in menuconfig.
>
> I've got one machine that did the same in 2.2.15pre14 (and
> maybe 13).
> It was swapping furiously and eventually died OOM, and apparently that
> was why. I added mem=256M and it's running happily.
>
> --
> | G r e g L o u i s | pgp: keys.pgp.com |
> | http://www.bgl.nu/~glouis | id glouis@dynamicro.on.ca |
> | "Knowing what thou knowest not is, in | 2BC6 4F5A 6657 FF4E 9FBC |
> | "a sense, omniscience" -- Piet Hein | 5DAA 2304 76A9 CCA6 5B45 |
>
>
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