[PLUG] Question on the "top" command

[Jason Dagit]

Tony,

I think you are right about the 2.2.x and 2.4.x systems.  I have seen
systems with more than 1/2 gig of ram that didn't need any special
parameters to use all of the ram.

The way ram is designed they often put large bit modules in parallel.
For example they might put 8 modules that are each 128 mega bit in
parallel.  So I think it would be odd if you can address only half the ram
because of a problem with the ram chips.  My understand from the limited
electrical engineering classes I've taken is that ram is very much all or
nothing.  Do you have another computer you can test the ram in?

Jason

On Thu, 18 Jul 2002, Anthony Schlemmer wrote:

> It's been too long since I've had to append a "mem" argument when
> booting Linux so I don't remember the exact syntax. I did have this
> problem on a Pentium Pro 200 system that had 128MB on it. Linux only
> saw 64MB of memory but I think this was back when I was using a 2.0.x
> kernel. I don't recall having this problem with the newer 2.2.x or
> 2.4.x kernels.
>
> Tony
>
> On Thursday 18 July 2002 11:38 am, AthlonRob wrote:
> > On Thu, 18 Jul 2002 10:17:59 -0700
> >
> > "Anthony Schlemmer" <aschlemm at attbi.com> wrote:
> > > What's interesting is you say you have 256MB of memory but
> > > according to "top" on the "Mem:" line you have approximately
> > > 123.7MB of physical
> > >
> > > memory available not anywhere close to the 256MB of memory you say
> > > you
> > >
> > > have installed.
> >
> > That caught my attention, too!
> >
> > I've never heard of RH finding 128MB of RAM instead of the installed
> > 256... I've heard of it getting stuck at 64MB, though.  Maybe passing
> > mem=256M (syntax correct on that?) to the kernel at boot time would
> > be a good idea.  At least as a test.  Then edit your lilo.conf
> > accordingly. (RH *is* still using lilo, right?)
> >
> > Rob
> >
> > _______________________________________________
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> > PLUG at lists.pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
>
> --
> Anthony Schlemmer
> aschlemm at attbi.com
>
>
>
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