annoying! I just figured out why my posts to the list have disappeared
in the last couple of months... the @iglu.org.il alias no longer points
to huji. why is that? Uff... NM, here is the question again...
----- Forwarded message from Ira Abramov
To: IGLU <[EMAIL PROTECTED]>
Subject: Memory undectable on Intel server board S5000VCL
Date: Mon, 11 Jun 2007 12:30:22 +0300
Howdie folks.
I just transplanted my server to a new 1U Pizza. An amazing bargain. A
Quad-core Xeon on a dual-CPU Intel board (room for enhancement!) with 4G
of FBDIMMs, and two 500GB disks, all came to just over 10K NIS after
taxes.
The problems I see so far: hardware raid doesn't work in Debian (There
are binary-only drivers for RHEL and SuSE EL), there are special
editions of the e1000 drivers that are supposed to speed up the network
through some partial off loading, I haven't read what they do yet. but
the problem I am having is the PCI memory mapping. It's set at "2.5GB" by
default in the BIOS, and Debian Etch comes up and indeed sees only
2.5GB. I have set it up to 3.5G to lose less RAM, but I would still like
to use the rest of the RAM! I tried booting with ram=4G but still the
kernel sees only 3.5. I guess I need to use memmap= as well, but I don't
have that information.
the only clue is this tiny line in the BIOS docs:
-PAE mode and the equivalent Linux mode must be set to see > 2.5GB
of memory.
but running the debian "bigmem" kernel with 4G or less has an unwanted
penalty on speed, doesn't it?
any advice?
--
Another brick in the wall
Ira Abramov
http://ira.abramov.org/email/
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