From owner-freebsd-alpha@FreeBSD.ORG Tue Apr 15 08:42:40 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 9ACAD37B401 for ; Tue, 15 Apr 2003 08:42:40 -0700 (PDT) Received: from smartrafficenter.org (pacer.smartrafficenter.org [207.14.56.3]) by mx1.FreeBSD.org (Postfix) with SMTP id A1C2943FDD for ; Tue, 15 Apr 2003 08:42:39 -0700 (PDT) (envelope-from kpieckiel@smartrafficenter.org) Received: (qmail 67193 invoked by uid 1500); 15 Apr 2003 15:42:29 -0000 Date: Tue, 15 Apr 2003 11:42:29 -0400 From: "Kevin A. Pieckiel" To: Andrew Gallatin Message-ID: <20030415154229.GG90878@pacer.dmz.smartrafficenter.org> References: <16026.46584.737019.331576@grasshopper.cs.duke.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="t4apE7yKrX2dGgJC" Content-Disposition: inline In-Reply-To: <16026.46584.737019.331576@grasshopper.cs.duke.edu> User-Agent: Mutt/1.4i 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: Tue, 15 Apr 2003 15:42:40 -0000 --t4apE7yKrX2dGgJC Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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. --t4apE7yKrX2dGgJC Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iD8DBQE+nChlc3iJbvFgTpIRAgWdAJwNseOvjkExTKL0MTe+ohjirzLmBACfRKTm +8zK+2d0xr7jJtkVBv1omYc= =luL6 -----END PGP SIGNATURE----- --t4apE7yKrX2dGgJC--