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Date:      Mon, 30 Jun 2003 11:54:15 +0200
From:      Bernd Walter <ticso@cicely12.cicely.de>
To:        Peter Jeremy <peter.jeremy@alcatel.com.au>
Cc:        freebsd-alpha@freebsd.org
Subject:   Re: Logically restricting RAM usage
Message-ID:  <20030630095414.GP90081@cicely12.cicely.de>
In-Reply-To: <20030630023640.GL430@gsmx07.alcatel.com.au>
References:  <20030630023640.GL430@gsmx07.alcatel.com.au>

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On Mon, Jun 30, 2003 at 12:36:40PM +1000, Peter Jeremy wrote:
> This should be a FAQ but I can't find it in the FAQ or the 5.1
> hardware notes.  I thought it was discussed here recently, but can't
> find it in either my own archives or via the FreeBSD mailing list
> search.
> 
> I have access to an AS4100 with 2.5GB RAM.  I'd like to install
> FreeBSD but it's not feasible to physically remove memory.  I can't
> find anything in the SRM to let me disable memory, is there a
> bootloader option to limit memory?

hw.physmem="2G" should do.

You could also try http://www.cosmo-project.de/~bernd/lm-alpha.diff.
Thereticaly it should add large mem support for KN300 systems, but it is
not tested beyound compiling yet.
You need hardware with busdma ported drivers to use this patch on a
large mem system.

-- 
B.Walter                   BWCT                http://www.bwct.de
ticso@bwct.de                                  info@bwct.de



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