Subject: Re: Can I tell netbsd (via a bootflag) how much Ram my DS5k has?
To: Tim Austwick <>
From: Michael L. Hitch <>
List: port-pmax
Date: 04/06/1999 11:08:48
On Tue, 6 Apr 1999, Tim Austwick wrote:

> Ive got a 5000/200, with netbsd 1.3.3 installed.
> Memory slot 3 (the fourth one...), is buggered. A test-mem-m tells me
> about some problem. With ram in this slot, NetBSD tends to fall over, with
> ram problems.
> I have 11*8meg memory cards. Giving me 88megs. Now, if i put 24megs in the
> first three slots (0,1,2), and the rest in (4-12), the mem-test-m works
> (because slot 3 isnt being used), and a cnfg reports 88 megs of memory.
> But! When NetBSD boots, it finds 24megs of real memory. 

  NetBSD currently just scans for contiguous memory, and thus stops when
it hits the empty slot and will ignore the rest.

> Is there some way to force it to use the full 88?
> I was thinking along the lines:
> boot 5/rz0/netbsd memory=88M
> or something.
> Does anyone know how to do this? Or where i can find out?

  There isn't any way to do this at this time.

  I can provide you with some test patches I've been running with that
will attempt to detect and size each memory slot individually.  These
patches allow me to mix memory module sizes in a 5000/200 and 5000/260 and
should be able to handle dis-contiguous memory configurations.  [These
patches are for 1.4/-current and could be hard to add to 1.3.x.]