From owner-freebsd-stable@FreeBSD.ORG Tue Mar 25 08:44:55 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4F6DA106566C for ; Tue, 25 Mar 2008 08:44:55 +0000 (UTC) (envelope-from jdc@parodius.com) Received: from mx01.sc1.parodius.com (mx01.sc1.parodius.com [72.20.106.3]) by mx1.freebsd.org (Postfix) with ESMTP id 2ECD18FC28 for ; Tue, 25 Mar 2008 08:44:55 +0000 (UTC) (envelope-from jdc@parodius.com) Received: by mx01.sc1.parodius.com (Postfix, from userid 1000) id 2E0DF1CC068; Tue, 25 Mar 2008 01:44:55 -0700 (PDT) Date: Tue, 25 Mar 2008 01:44:55 -0700 From: Jeremy Chadwick To: Gianni Message-ID: <20080325084455.GA36520@eos.sc1.parodius.com> References: <20080322035212.GA15541@eos.sc1.parodius.com> <248F8C92-14F4-4FF8-94FE-2F220FFBE8FB@yahoo.it> <20080325084330.GA36390@eos.sc1.parodius.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080325084330.GA36390@eos.sc1.parodius.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: freebsd-stable@freebsd.org Subject: Re: ad0 READ_DMA TIMEOUT errors on install of 7.0-RELEASE 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, 25 Mar 2008 08:44:55 -0000 On Tue, Mar 25, 2008 at 01:43:30AM -0700, Jeremy Chadwick wrote: > On Tue, Mar 25, 2008 at 08:32:07AM +0100, Gianni wrote: > > On 22/mar/08, at 04:52, Jeremy Chadwick wrote: > >> On Fri, Mar 21, 2008 at 06:27:19PM +0100, Gianni Doe wrote: > >>> I'm also experiencing this issue after upgrading to 7.0-RELEASE from 6.3 > >> The most I can provide is here: > >> http://wiki.freebsd.org/JeremyChadwick/Commonly_reported_issues > > > >> Workaround: Set hw.ata.ata_dma=0 in /boot/loader.conf. This will disable > >> use of DMA in the ATA/SATA subsystem; > > > > I'm afraid the workaround doesn't work for me, I set hw.ata.ata_dma="0" in > > loader.conf and the problem still occurs. > > Just to double-check... > > # sysctl hw.ata.ata_dma > > hw.ata.ata_dma: 0 > > Are you using PATA or SATA disks? I re-read your mail -- sorry. You're using SATA. I'll update my Wiki page to state that the loader.conf DMA disable trick only works for PATA. In the interim, I recommend you contact Scott Long, especially if your problem is easily repeatable. He's offered to help track this down. -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |