From owner-freebsd-current@FreeBSD.ORG Fri Oct 1 00:52:31 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AAA8516A4CE for ; Fri, 1 Oct 2004 00:52:31 +0000 (GMT) Received: from electra.cse.Buffalo.EDU (electra.cse.Buffalo.EDU [128.205.32.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 58B7D43D1F for ; Fri, 1 Oct 2004 00:52:31 +0000 (GMT) (envelope-from kensmith@cse.Buffalo.EDU) Received: from electra.cse.Buffalo.EDU (localhost [127.0.0.1]) i910qTTH028934; Thu, 30 Sep 2004 20:52:29 -0400 (EDT) Received: (from kensmith@localhost) by electra.cse.Buffalo.EDU (8.12.10/8.12.9/Submit) id i910qSGS028933; Thu, 30 Sep 2004 20:52:28 -0400 (EDT) Date: Thu, 30 Sep 2004 20:52:27 -0400 From: Ken Smith To: Tristan Message-ID: <20041001005227.GA28811@electra.cse.Buffalo.EDU> References: <20041001093515.5cd51b2d@rhino> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041001093515.5cd51b2d@rhino> User-Agent: Mutt/1.4.1i cc: freebsd-current@freebsd.org Subject: Re: ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=xxx X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Oct 2004 00:52:31 -0000 On Fri, Oct 01, 2004 at 09:35:15AM +0930, Tristan wrote: > FreeBSD 6.0-CURRENT with GENERIC kernel built 27th Sep. > On a SunBlade 100 I see these messages regularly when > dma is enabled. The messages go away when I either use > atacontrol to set the mode to PIO4 or set hw.ata.ata_dma to 0 > I do get data corruption on the disk if left in DMA mode. Just FYI my primary test machine is a SunBlade 100, it seems to be doing OK with a kernel built from this morning's source. I've been doing most of my builds from an NFS server though, I'll do a check with a full buildworld which will use the local drive more. > ad0: 14594MB [29651/16/63] at ata2-master UDMA66 > acd0: CDRW at ata2-slave PIO4 > ata3-master: DMA limited to UDMA33, non-ATA66 cable or device > ad1: 39266MB [79780/16/63] at ata3-master UDMA33 > Mounted root from ufs:/dev/ad0a. Is the data corruption spread across both drives, or just ad1? That message about the cable or device being limited could be a clue. -- Ken Smith - From there to here, from here to | kensmith@cse.buffalo.edu there, funny things are everywhere. | - Theodore Geisel |