From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: Kernel SeekCompleteErrors... Different from Re: LibPATA code issues / 2.6.15.4 Date: Sun, 26 Feb 2006 17:43:11 +0000 Message-ID: <1140975791.27539.19.camel@localhost.localdomain> References: <440040B4.8030808@dgreaves.com> <440083B4.3030307@rtr.ca> <4400A1BF.7020109@rtr.ca> <4400B439.8050202@dgreaves.com> <4401122A.3010908@rtr.ca> <44019E96.20804@superbug.co.uk> <4401B378.3030005@rtr.ca> <4401BB85.7070407@superbug.co.uk> <4401DF6B.9010409@rtr.ca> <20060226171307.GA9682@gallifrey> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:36541 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S1751359AbWBZRlF (ORCPT ); Sun, 26 Feb 2006 12:41:05 -0500 In-Reply-To: <20060226171307.GA9682@gallifrey> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: "Dr. David Alan Gilbert" Cc: Mark Lord , James Courtier-Dutton , David Greaves , Justin Piszcz , Jeff Garzik , linux-kernel@vger.kernel.org, IDE/ATA development list , albertcc@tw.ibm.com, axboe@suse.de, htejun@gmail.com On Sul, 2006-02-26 at 17:13 +0000, Dr. David Alan Gilbert wrote: > > The *only* test that matters is to enable S.M.A.R.T., > > and read out the error logs from it. SMART is unreliable for many cases > I have seen a set of drives that has reported UncorrectableErrors > and : > * Shows the Uncorrectable error in the SMART log > * Passes a full SMART test > * Shows no remapped sectors > * Passes the vendors drive test > * Now fully passes a dd if=/dev/hdx of=/dev/null with no errors. The very early SATA code didnt decode the errors from the drive fully so could produce bogus reports. The current code decodes it and also displays the ATA level diagnostics so should be reliable.