Re: [RFC][PATCH] Re: 4Gb ram not showing up

["Andrew Lyon" <andrew.lyon@gmail.com>]

On 6/6/07, H. Peter Anvin <hpa@zytor.com> wrote:
> Lennart Sorensen wrote:
> >
> > Seems like an improvement to me.  To fully explain how it could be 3 or
> > 3.5 or 3.25 or who knows how many GB you can actually use without PAE
> > would probably require writing a small novel.  Certainly talking about
> > address space instead of amounts of physical memory is more correct.
> >
>
> On some machines it's even just 2 GB.
>
>         -hpa
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Could this also cause a system to be unstable? my abit athlon64 at
work will not run x64 with more than 1gb ram, and i have a colo server
with supermicro & 2 x dual core xeons that will not run with more than
2gb.

Both systems have long uptimes but if i add ram they crash within
minutes of booting.

Tried several kernels up to 2.6.21 and gave up, I can send dmesg
output but the crashes are completely random.

andy