Date: Tue, 15 Apr 2003 11:42:29 -0400 From: "Kevin A. Pieckiel" <kpieckiel-freebsd-alpha@smartrafficenter.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: freebsd-alpha@freebsd.org Subject: Re: problem with UDMA mode on XP1000 Message-ID: <20030415154229.GG90878@pacer.dmz.smartrafficenter.org> In-Reply-To: <16026.46584.737019.331576@grasshopper.cs.duke.edu> References: <Pine.NEB.4.44.0304141507050.11725-100000@dijkstra.fi.infn.it> <16026.46584.737019.331576@grasshopper.cs.duke.edu>
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--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--
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