How to debug >2GB memory issues (and 3ware)
Michael R. Wayne
amd64 at wayne47.com
Wed Nov 24 07:13:45 GMT 2004
Resolution for the archives
On Mon, Nov 08, 2004 at 02:19:47PM -0500, I wrote:
> I have a Dual 4GB system with a 3ware SATA controller that's working
> properly as long as I restrict it to 2GB with:
> Obviously, I'd like to have access to the other 2GB of RAM. But
> if I go past 2GB, I get random crashes during all builds (world,
> kernel, port).
Short term fix:
Remove the last Gig of RAM so that there was only 3 GB physical
RAM in the box. Note that limiting it to 3GB with hw.physmem=3G
did NOT work, that only worked to 2 GB.
Long term fix:
Replace the 8 512MB Corsair DIMMs (where are approved to run
with the Arima motherboard) with 4 Kingston 1GB DIMMs. All
problems vanished immediately and the box runs fine with 4 Gig.
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