From owner-freebsd-hardware@FreeBSD.ORG Sat Dec 23 20:48:24 2006 Return-Path: X-Original-To: freebsd-hardware@freebsd.org Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BB18F16A407 for ; Sat, 23 Dec 2006 20:48:24 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (c58-107-94-118.belrs4.nsw.optusnet.com.au [58.107.94.118]) by mx1.freebsd.org (Postfix) with ESMTP id E858413C458 for ; Sat, 23 Dec 2006 20:48:23 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by turion.vk2pj.dyndns.org (8.13.8/8.13.8) with ESMTP id kBNKRSAn015229; Sun, 24 Dec 2006 07:27:28 +1100 (EST) (envelope-from peter@turion.vk2pj.dyndns.org) Received: (from peter@localhost) by turion.vk2pj.dyndns.org (8.13.8/8.13.8/Submit) id kBNKRSLI015228; Sun, 24 Dec 2006 07:27:28 +1100 (EST) (envelope-from peter) Date: Sun, 24 Dec 2006 07:27:28 +1100 From: Peter Jeremy To: Erik Udo Message-ID: <20061223202728.GF837@turion.vk2pj.dyndns.org> References: <458D36E4.9000900@dnainternet.net> <458D67CC.1050102@dnainternet.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="MrRUTeZlqqNo1jQ9" Content-Disposition: inline In-Reply-To: <458D67CC.1050102@dnainternet.net> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.13 (2006-08-11) Cc: freebsd-hardware@freebsd.org Subject: Re: memory holes X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Dec 2006 20:48:24 -0000 --MrRUTeZlqqNo1jQ9 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, 2006-Dec-23 19:30:52 +0200, Erik Udo wrote: >Both find 512MB of ram, but.. >NetBSD crashes after boot stage when it starts to load the kernel.=20 >(thanks NetBSD team for not building the kernel image with debugging=20 >symbols, but you did build it with DDB) > >OpenBSD finds 512MB of ram too, but... >it wont find my hard disk, even thought it has wd0 as a hard disk in dmesh. > >To add to my previous post, i tested with 128MB PC100 + 32MB PC100. Both= =20 >memory modules was found by FreeBSD and put to use. > >Which leads me to the conclusion: Why can't FreeBSD use PC133 memory=20 >when OpenBSD can? Did someone forget to port drivers for memory modules? :P Actually, crashing or misbehaving whist trying to boot suggests to me that neither OpenBSD nor NetBSD can use the extra memory they "find". Correctly configuring the memory controllers for the physical memory you have is the responsibility of the BIOS. It seems likely that either some of your RAM is bad (a 5 minute memtest may not detect this) and/or mixing different sizes and types of memory has confused the BIOS. There are a variety of different ways to work out how much memory is in your computer. It's quite possible that {Free,Net,Open}BSD are using different mechanisms and coming up with different amounts. --=20 Peter Jeremy --MrRUTeZlqqNo1jQ9 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFFjZEw/opHv/APuIcRAsBsAJ9BFDWpcl3e2DlxcTFC49DfE+j5zgCgv3w6 wNVx+j9HLo+YQotf0MwCUng= =fOuo -----END PGP SIGNATURE----- --MrRUTeZlqqNo1jQ9--