From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265340AbUBPEIT (ORCPT ); Sun, 15 Feb 2004 23:08:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265366AbUBPEIT (ORCPT ); Sun, 15 Feb 2004 23:08:19 -0500 Received: from topaz.cx ([66.220.6.227]:61888 "EHLO mail.topaz.cx") by vger.kernel.org with ESMTP id S265340AbUBPEIR (ORCPT ); Sun, 15 Feb 2004 23:08:17 -0500 Date: Sun, 15 Feb 2004 23:08:11 -0500 From: Chip Salzenberg To: Jeff Garzik Cc: Bartlomiej Zolnierkiewicz , Linux Kernel , Andrew Morton Subject: Re: Linux 2.6.3-rc3 - IDE DMA errors on Thinkpad A30 Message-ID: <20040216040811.GF3789@perlsupport.com> References: <200402151658.57710.bzolnier@elka.pw.edu.pl> <20040215163438.GC3789@perlsupport.com> <200402151808.42611.bzolnier@elka.pw.edu.pl> <20040216005523.GD3789@perlsupport.com> <40302783.6020505@pobox.com> <20040216033740.GE3789@perlsupport.com> <40303D59.4030605@pobox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <40303D59.4030605@pobox.com> X-Message-Flag: OUTLOOK ERROR: Message text violates P.A.T.R.I.O.T. act User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org According to Jeff Garzik: > Other equally smart people argue that modern IDE disks reserve space for > remapping bad sectors. If you run out of sectors that the drive is > willing to silently remap for you, you should toss the disk and buy a > new one. OK, I get the theory. But AFAICT this drive hasn't remapped *any* sectors. Yet. (Which would not be impossible; it's a relatively new drive, a few months old at most.) Quoting smartctl: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 0 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0 197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 3 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 0 This seems to suggest that there are three *candidate* sectors with reallocation pending, none of which have actually been remapped (yet). If so, drive replacement would perhaps be premature. I suppose it's time to read up on the details of the SMART spec. -- Chip Salzenberg - a.k.a. - "I wanted to play hopscotch with the impenetrable mystery of existence, but he stepped in a wormhole and had to go in early." // MST3K