From owner-freebsd-alpha@FreeBSD.ORG Mon Jun 30 02:54:42 2003 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 833A837B401 for ; Mon, 30 Jun 2003 02:54:42 -0700 (PDT) Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2DC5D43FB1 for ; Mon, 30 Jun 2003 02:54:41 -0700 (PDT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de (cicely5.cicely.de [IPv6:3ffe:400:8d0:301:200:92ff:fe9b:20e7]) by srv1.cosmo-project.de (8.12.9/8.12.9) with ESMTP id h5U9sJhR002165 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=OK); Mon, 30 Jun 2003 11:54:25 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [IPv6:3ffe:400:8d0:301::12]) by cicely5.cicely.de (8.12.9/8.12.9) with ESMTP id h5U9sHw6030009 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 30 Jun 2003 11:54:17 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.12.9/8.12.9) with ESMTP id h5U9sGgt093960; Mon, 30 Jun 2003 11:54:17 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.12.9/8.12.9/Submit) id h5U9sFLv093959; Mon, 30 Jun 2003 11:54:15 +0200 (CEST) Date: Mon, 30 Jun 2003 11:54:15 +0200 From: Bernd Walter To: Peter Jeremy Message-ID: <20030630095414.GP90081@cicely12.cicely.de> References: <20030630023640.GL430@gsmx07.alcatel.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030630023640.GL430@gsmx07.alcatel.com.au> X-Operating-System: FreeBSD cicely12.cicely.de 5.1-CURRENT alpha User-Agent: Mutt/1.5.4i cc: freebsd-alpha@freebsd.org Subject: Re: Logically restricting RAM usage X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: ticso@cicely.de List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Jun 2003 09:54:42 -0000 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