How to debug >2GB memory issues (and 3ware)

[Claus Guttesen]

> I have a Dual 4GB system with a 3ware SATA
> controller that's working
> properly as long as I restrict it to 2GB with:
>    hw.physmem=2G
> 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).

I can't help you with that particular question, but I
had issues with a Dell-server and 4 GB RAM which was
resolved the same way. Maybe a list of drivers that
are 2GB-, 4GB-ready etc. It's getting more and more
common to have 4+ GB.

Claus