setting max memory to use on Alpha?
Andrew Gallatin
gallatin at cs.duke.edu
Mon May 5 14:32:10 PDT 2003
Wilko Bulte writes:
> Folks,
>
> Shouldn't we set a default to the max phys memory
> FreeBSD can use? Using hw.physmem in the loader I mean.
It should be done based on the rpb systype in machdep.c
> Given that the maximum amount of mem that can safely be
> used on all system models appears to be 1G.
>
> BTW: my AS4100 is now running with 2G without incidents.
> Which is a bit strange as I understood from Drew (tnx btw!)
> that only Tsunami boxes can run with 2G and everything else
> is limited to 1G?
>
I mis-spoke. I just looked at the mcpcia.c code, and its
got a 2GB direct map window as well. So it should be happy.
Also, the UP1000/UP1100/UP1500 irongate machines should be good for as
much as 4GB of ram, but you can't squeeze that much into the box.
Drew
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