From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: Driver retries disk errors. Date: Tue, 31 Aug 2004 12:45:15 +0100 Sender: linux-ide-owner@vger.kernel.org Message-ID: <1093952715.32684.12.camel@localhost.localdomain> References: <20040830163931.GA4295@bitwizard.nl> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from the-village.bc.nu ([81.2.110.252]:10119 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S268215AbUHaMrS (ORCPT ); Tue, 31 Aug 2004 08:47:18 -0400 In-Reply-To: <20040830163931.GA4295@bitwizard.nl> List-Id: linux-ide@vger.kernel.org To: Rogier Wolff Cc: Linux Kernel Mailing List , linux-ide@vger.kernel.org On Llu, 2004-08-30 at 17:39, Rogier Wolff wrote: > We encounter "bad" drives with quite a lot more regularity than other > people (look at the Email address). We're however, wondering why the > IDE code still retries a bad block 8 times? By the time the drive > reports "bad block" it has already tried it several times, including a > bunch of "recalibrates" etc etc. For comparison, the Scsi-disk driver > doesn't do any retrying. It helps for some things like magneto-opticals. For generic hard drives its only relevant for older devices. > (*) Note: Tested last month: The driver still works for MFM > drives. However, the initialization apparently is not enough > anymore. The drive did not work when the BIOS didn't think there was a > drive. Please file a bug report if 2.6 also shows that problem.