From owner-freebsd-hackers@FreeBSD.ORG  Sat Feb 21 13:50:43 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id A790216A4CF
	for <hackers@freebsd.org>; Sat, 21 Feb 2004 13:50:43 -0800 (PST)
Received: from mail.sandvine.com (sandvine.com [199.243.201.138])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0266143D2D
	for <hackers@freebsd.org>; Sat, 21 Feb 2004 13:50:43 -0800 (PST)
	(envelope-from don@sandvine.com)
Received: by mail.sandvine.com with Internet Mail Service (5.5.2657.72)
	id <15P45LTH>; Sat, 21 Feb 2004 16:50:41 -0500
Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337045D81D7@mail.sandvine.com>
From: Don Bowman <don@sandvine.com>
To: 'Romain Kang' <romain@kzsu.stanford.edu>, hackers@freebsd.org
Date: Sat, 21 Feb 2004 16:50:33 -0500
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2657.72)
Content-Type: text/plain;
	charset="iso-8859-1"
Subject: RE: memtest86 for FreeBSD boot?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 21 Feb 2004 21:50:43 -0000

> From: Romain Kang [mailto:romain@kzsu.stanford.edu]
> Has anyone put together a version of memtest86 
> (http://www.memtest86.com/)
> that can sit in the root directory next to the FreeBSD kernel?
> 
> My lab at work has a several racks of 1U boxes, most of which has
> a CD-ROM or floppy installed.  If we suspect RAM problem in one of
> the machines, we have to unrack the box, open it up and hook up
> another drive to run memtest86.  I notice that Linux boxes that
> boot with GRUB or LILO seem to use HDD-based memtest86 without
> problem.  It looks like a matter of coming up with a suitable .lds
> file to do the same for FreeBSD, and it's probably obvious enough
> that someone has done it before...

Change the '. =' in the lds file as below.

OUTPUT_FORMAT("elf32-i386");
OUTPUT_ARCH(i386);

ENTRY(_start);
SECTIONS {
/*      . = 0x10000; */
        . = 0xc0120000;
        _start = . ;
        .data : {
                *(.data)
        }
}