FreeBSD 5.3 problem on Dual AMD64 2.2GHz with 8GB RAM
obrien at freebsd.org
Wed Oct 27 09:55:43 PDT 2004
On Wed, Oct 27, 2004 at 11:12:31AM +0900, Ganbold wrote:
> At 11:45 AM 10/27/2004, you wrote:
> >On Wed, Oct 27, 2004 at 09:52:58AM +0900, Ganbold wrote:
> >> I still have problem running FreeBSD 5.3 with 8GB RAM on Dual amd64
> >> 2.2GHz (IBM @server 325, ServeRAID 6M) with 8GB RAM.
> >> It was working ok with 4 GB RAM. Afterwards I added another 4GB RAM and
> >> tried to boot FreeBSD
> >> with 8GB RAM. However it showed various errors and login didn't work. You
> >> can see serial console messages
> >> at the end of my email.
> >An IBM e325 has only 6 DIMM slots, specifically what RAM configuration
> >are you using? Do you have ECC turned on? Are using DRAM scrubbing?
> >What is your BIOS memory interleaving settings?
> I have 2GB x 4 = 8GB RAM and ECC is turned on and I have following settings
> in BIOS:
By chance, have you tried both with 4GB per CPU and with all 8GB on one
CPU? Did it make a difference?
> 4GB Memory Hole adjust -> AUTO
I would turn this off (disable).
> DRAM Bank interleave -> AUTO
> Node memory interleave -> Disabled
> ACPI SRAT table -> Disabled
I would enable the SRAT table, but do keep disabled the Node memory
interleave. FreeBSD will not use the SRAT table, but with it
ON/Enabled/AUTO I know the CPU will be set up a certain way that we do
> HPET Timer -> Enabled
> ECC -> Enabled
> DRAM ECC -> Enabled
> ECC Scrub Redirection -> Disabled
I would turn on ECC Scrub Redirection, but thats just to gain reliability.
I would also download the latest memtest86+ ISO image from
www.memtest.org, burn it to CDROM, and see if all your RAM passes. I
assume it is IBM [re]branded?
-- David (obrien at FreeBSD.org)
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