From owner-cvs-all@FreeBSD.ORG Tue Mar 1 20:47:40 2005 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1B25616A4D8 for ; Tue, 1 Mar 2005 20:47:40 +0000 (GMT) Received: from mail26.sea5.speakeasy.net (mail26.sea5.speakeasy.net [69.17.117.28]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1CBF943D1F for ; Tue, 1 Mar 2005 20:47:39 +0000 (GMT) (envelope-from jhb@FreeBSD.org) Received: (qmail 25098 invoked from network); 1 Mar 2005 20:47:38 -0000 Received: from server.baldwin.cx ([216.27.160.63]) (envelope-sender )AES256-SHA encrypted SMTP for ; 1 Mar 2005 20:47:38 -0000 Received: from [10.50.40.202] (gw1.twc.weather.com [216.133.140.1]) (authenticated bits=0) by server.baldwin.cx (8.13.1/8.13.1) with ESMTP id j21KlPbY074756; Tue, 1 Mar 2005 15:47:33 -0500 (EST) (envelope-from jhb@FreeBSD.org) From: John Baldwin To: "M. Warner Losh" Date: Tue, 1 Mar 2005 15:29:15 -0500 User-Agent: KMail/1.6.2 References: <861xb0ha8r.fsf@xps.des.no> <86acpnmzih.fsf@xps.des.no> <20050301.094356.112814615.imp@bsdimp.com> In-Reply-To: <20050301.094356.112814615.imp@bsdimp.com> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message-Id: <200503011529.15251.jhb@FreeBSD.org> X-Spam-Status: No, score=-102.8 required=4.2 tests=ALL_TRUSTED, USER_IN_WHITELIST autolearn=failed version=3.0.2 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on server.baldwin.cx cc: des@des.no cc: src-committers@FreeBSD.org cc: cvs-src@FreeBSD.org cc: cvs-all@FreeBSD.org cc: bmah@FreeBSD.org Subject: Re: cvs commit: src/release/doc/en_US.ISO8859-1/installation/common install.sgml X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Mar 2005 20:47:40 -0000 On Tuesday 01 March 2005 11:43 am, M. Warner Losh wrote: > In message: <86acpnmzih.fsf@xps.des.no> > > des@des.no (Dag-Erling Sm=F8rgrav) writes: > : John Baldwin writes: > : > How about a custom boot kernel? When I suggested 12MB rather than > : > 7MB in the original PR, I was thinking of the case of building a > : > stripped-down custom kernel. GENERIC certainly isn't going to fit > : > well in 16MB. > : > : A custom kernel should work better. I figured out that the "missing" > : memory is in fact the memory used by the kernel, so a system with a > : trimmed kernel should have a lot more memory available. I'll run some > : more tests... > > I've booted a stripped down (but not minimal) kernel with > hw.physmem=3D10M to single user, but couldn't even get to multi-user > with 16M: Too many processes and too much swapping (I didn't trim my > enabled list on my laptop). If I booted a minimal kernel, and did > some creative trimming, I think I can get down closer to 6M to 8M on a > fairly small system (no acpi, etc), but it would be painful to run in > that environemnt, unless you had special needs (eg, it was an embedded > platform). Then I think we should just say 24MB is the minimum required for both insta= ll=20 and running given all the comments. It will also simplify the docs if we=20 just go with one number for minimum memory requirement. =2D-=20 John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" =3D http://www.FreeBSD.org