Date: Mon, 5 May 2003 17:31:56 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: freebsd-alpha@freebsd.org Subject: Re: setting max memory to use on Alpha? Message-ID: <16054.55372.301789.308917@grasshopper.cs.duke.edu> In-Reply-To: <20030505195230.GA82080@freebie.xs4all.nl>
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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. Drewhome | help
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