From owner-freebsd-stable@FreeBSD.ORG Tue Sep 26 17:06:30 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 09B4716A4D1 for ; Tue, 26 Sep 2006 17:06:30 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from server.baldwin.cx (66-23-211-162.clients.speedfactory.net [66.23.211.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1096F43DE2 for ; Tue, 26 Sep 2006 17:06:07 +0000 (GMT) (envelope-from jhb@freebsd.org) Received: from localhost.corp.yahoo.com (john@localhost [127.0.0.1]) (authenticated bits=0) by server.baldwin.cx (8.13.6/8.13.6) with ESMTP id k8QH5wSx049594; Tue, 26 Sep 2006 13:06:05 -0400 (EDT) (envelope-from jhb@freebsd.org) From: John Baldwin To: freebsd-stable@freebsd.org Date: Tue, 26 Sep 2006 13:05:54 -0400 User-Agent: KMail/1.9.1 References: <15af975d0609212321r29fdd287p462ae0f2b7e404b4@mail.gmail.com> <4513F5B0.9030300@goodforbusiness.co.uk> <20060922154649.GA26855@lothlorien.nagual.nl> In-Reply-To: <20060922154649.GA26855@lothlorien.nagual.nl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200609261305.55110.jhb@freebsd.org> X-Greylist: Sender succeeded SMTP AUTH authentication, not delayed by milter-greylist-2.0.2 (server.baldwin.cx [127.0.0.1]); Tue, 26 Sep 2006 13:06:05 -0400 (EDT) X-Virus-Scanned: ClamAV 0.88.3/1946/Tue Sep 26 09:18:37 2006 on server.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-4.4 required=4.2 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on server.baldwin.cx Cc: dick hoogendijk Subject: Re: bug on BTX X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Sep 2006 17:06:30 -0000 On Friday 22 September 2006 11:46, dick hoogendijk wrote: > On 22 Sep Dominic Marks wrote: > > CyberSans AirBort wrote: > > >i have tested 6.2-BETA and the same problem still appear when i want to > > >install it into compaq evo desktop; BTX HALTED. > > Go into the BIOS, disable BIOS DMA transfers **. After that it will boot > > normally. I have about 20 EVOs, which this change they run fine. This is > > true of all versions of FreeBSD I have ever tried. > > Still remains the question on why FreeBSD is not able to boot when bios > DMA transfers are set set to on, while XP and linux just do what they're > supposed to. It should not be necessary i.m.h.o. Because other OS's run the BIOS in real mode, and we run it in vm86 mode and we don't emulate enough instructions in vm86 mode for the Compaq/HP BIOS. See my other e-mail. -- John Baldwin