From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966236AbWKTRWq (ORCPT ); Mon, 20 Nov 2006 12:22:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S966238AbWKTRWq (ORCPT ); Mon, 20 Nov 2006 12:22:46 -0500 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:64213 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S966236AbWKTRWp (ORCPT ); Mon, 20 Nov 2006 12:22:45 -0500 Date: Mon, 20 Nov 2006 17:28:12 +0000 From: Alan To: avl@logic.at Cc: linux-kernel@vger.kernel.org Subject: Re: possible bug in ide-disk.c (2.6.18.2 but also older) Message-ID: <20061120172812.64837a0a@localhost.localdomain> In-Reply-To: <20061120165601.GS6851@gamma.logic.tuwien.ac.at> References: <20061120145148.GQ6851@gamma.logic.tuwien.ac.at> <20061120152505.5d0ba6c5@localhost.localdomain> <20061120165601.GS6851@gamma.logic.tuwien.ac.at> X-Mailer: Sylpheed-Claws 2.6.0 (GTK+ 2.8.20; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > While I used Knoppix to determine the age of the bug, it does also > appear with a plain vanilla 2.6.18.2 kernel from www.kernel.org. > The ChangeLog for 2.6.18.3 also doesn't mention ide-disk. The old IDE layer does not currently have a maintainer. > I must admit, I don't know about GPT. My system's bios > is old enough to not know about EFI, and the partition-scheme > on that harddisk dates back quite a few years, so it's unlikely > to be anything than the good ol' MBR. The reason I ask is that they put the partition in the last sector which means a block read of the last sector goes off the end of the disk and certainly used to be mishandled by the IDE code. > Alternatively, a kernel-option to manually disable hpa-checking > would be a good step to solve the problem even for drives like mine. It's a compile time option. If you don't have GPT partitioning support then the system ought to behave correctly. Alan