From owner-freebsd-alpha@FreeBSD.ORG Wed Apr 16 01:02:12 2003 Return-Path: Delivered-To: freebsd-alpha@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AADE337B401 for ; Wed, 16 Apr 2003 01:02:12 -0700 (PDT) Received: from postino.fi.infn.it (postino.fi.infn.it [192.84.145.9]) by mx1.FreeBSD.org (Postfix) with ESMTP id 42EC143F93 for ; Wed, 16 Apr 2003 01:02:11 -0700 (PDT) (envelope-from Riccardo.Veraldi@fi.infn.it) Received: from dijkstra.fi.infn.it (dijkstra.fi.infn.it [192.84.145.13]) by postino.fi.infn.it (8.12.9/8.12.6) with ESMTP id h3G8224k090265; Wed, 16 Apr 2003 10:02:07 +0200 (CEST) Received: by dijkstra.fi.infn.it (Postfix, from userid 1000) id 9D64136D81; Wed, 16 Apr 2003 10:02:01 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by dijkstra.fi.infn.it (Postfix) with ESMTP id 8CE2330C01; Wed, 16 Apr 2003 10:02:01 +0200 (CEST) Date: Wed, 16 Apr 2003 10:02:01 +0200 (CEST) From: Riccardo.Veraldi@fi.infn.it X-X-Sender: fddi@dijkstra.fi.infn.it To: "Kevin A. Pieckiel" In-Reply-To: <20030415154229.GG90878@pacer.dmz.smartrafficenter.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-RAVMilter-Version: 8.4.1(snapshot 20020920) (postino.fi.infn.it) X-Spam-Status: No, hits=0.2 required=5.0 tests=IN_REP_TO,NO_REAL_NAME,QUOTED_EMAIL_TEXT,SPAM_PHRASE_03_05, USER_AGENT_PINE version=2.43 cc: freebsd-alpha@freebsd.org Subject: Re: problem with UDMA mode on XP1000 X-BeenThere: freebsd-alpha@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the Alpha List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Apr 2003 08:02:12 -0000 I never had problems on Miata and Monet with internal SCSI cables and devices. Rick On Tue, 15 Apr 2003, Kevin A. Pieckiel wrote: > On Mon, Apr 14, 2003 at 09:22:00AM -0400, Andrew Gallatin wrote: > > > Rant aside, ATA cables are VERY sensative to EMI noise. What's > > happening to you is that the cable is either badly twisted, running > > too close to an EMI source, or both. This is causing the transfers > > across the cable between the controller and the disk to be corrupted > > (that's the ICRC error you're seeing). This is NOT the fault of the > > software, rather its a real hardware problemn with your setup. The > > software is saving you from serious disk corruption. > > Are these types of issues IDE specific, or are there similar issues with > SCSI cabling as well? > > Kevin > > --- > This message was signed by GnuPG. E-Mail kpieckiel-pgp@smartrafficenter.org > to receive my public key. You may also get my key from pgpkeys.mit.edu; > my ID is 0xF1604E92 and will expire on 01 January 2004. >