From owner-freebsd-amd64@FreeBSD.ORG Wed May 21 12:39:49 2008 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2399A1065682 for ; Wed, 21 May 2008 12:39:49 +0000 (UTC) (envelope-from mj@mjturner.net) Received: from zen.pimp.org.za (zen.pimp.org.za [70.85.31.111]) by mx1.freebsd.org (Postfix) with ESMTP id DD7338FC21 for ; Wed, 21 May 2008 12:39:48 +0000 (UTC) (envelope-from mj@mjturner.net) Received: from area51.pimp.org.za (87-194-135-198.bethere.co.uk [87.194.135.198]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mail-gateway.pimp.org.za", Issuer "Certificate Authority" (verified OK)) by zen.pimp.org.za (Postfix) with ESMTP id F24074089 for ; Wed, 21 May 2008 13:20:30 +0100 (BST) Received: from aurora.pimp.org.za (aurora.pimp.org.za [192.168.1.6]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by area51.pimp.org.za (Postfix) with ESMTPS id 9436C34846 for ; Wed, 21 May 2008 13:20:15 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by aurora.pimp.org.za (Postfix) with ESMTP id 8B71934834 for ; Wed, 21 May 2008 13:20:28 +0100 (BST) X-Virus-Scanned: by amavisd-new 2.5.3 (NetBSD) at pimp.org.za Received: from aurora.pimp.org.za ([127.0.0.1]) by localhost (aurora.pimp.org.za [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5kiz++Xt-tqc for ; Wed, 21 May 2008 13:20:18 +0100 (BST) Received: by aurora.pimp.org.za (Postfix, from userid 1000) id 218E334833; Wed, 21 May 2008 13:20:18 +0100 (BST) Date: Wed, 21 May 2008 13:20:17 +0100 From: Michael-John Turner To: freebsd-amd64@freebsd.org Message-ID: <20080521122017.GB29529@aurora.pimp.org.za> Mail-Followup-To: Michael-John Turner , freebsd-amd64@freebsd.org References: <000301c8b9d0$567196c0$1801a8c0@hellfire> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000301c8b9d0$567196c0$1801a8c0@hellfire> User-Agent: Mutt/1.5.18 (NetBSD aurora.pimp.org.za 4.0_STABLE sparc64) Subject: Re: FreeBSD 7.0R and 7.0CURRENT (amd64) show only 2,5Gb RAM from 8Gb X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2008 12:39:49 -0000 On Mon, May 19, 2008 at 08:49:41PM +0400, Nifty wrote: > I have two PC's based on iP965 and iG33 chipsets, > both have iC2D Quad 2.4GHz CPU and both have 8Gb (4 x 2Gb) PC2-6400 RAM. > After installing FreeBSD 7.0R (amd64) and FreeBSD 7.0CURRENT (amd64) - > on iP965 dmesg show me 2,5Gb of RAM, on iG33 dmesg show 3,1Gb of RAM :( Do either of the motherboards have a memory-hole related setting? If so, does changing it (eg to ignore the memory hole) make more memory visible to FreeBSD? This is a common 'issue' with systems that have more than ~3GiB RAM - the area of memory reserved for 32-bit PCI devices (the 'memory hole' above) can prevent access to memory beyond it. -mj -- Michael-John Turner mj@mjturner.net <> http://mjturner.net/