From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932087AbVHLKGH (ORCPT ); Fri, 12 Aug 2005 06:06:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932104AbVHLKGH (ORCPT ); Fri, 12 Aug 2005 06:06:07 -0400 Received: from clock-tower.bc.nu ([81.2.110.250]:64903 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S932087AbVHLKGG (ORCPT ); Fri, 12 Aug 2005 06:06:06 -0400 Subject: Re: rc6 keeps hanging and blanking displays where rc4-mm1 works fine. From: Alan Cox To: Helge Hafting Cc: Linux Kernel Mailing List , Dave Airlie , Linus Torvalds , akpm@osdl.org In-Reply-To: <42FC7372.7040607@aitel.hist.no> References: <20050805104025.GA14688@aitel.hist.no> <21d7e99705080503515e3045d5@mail.gmail.com> <42F89F79.1060103@aitel.hist.no> <42FC7372.7040607@aitel.hist.no> Content-Type: text/plain Content-Transfer-Encoding: 7bit Date: Fri, 12 Aug 2005 11:32:54 +0100 Message-Id: <1123842774.22460.22.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.2 (2.2.2-5) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Gwe, 2005-08-12 at 12:01 +0200, Helge Hafting wrote: > solveable by resizing. But the machine will occationally hang, forcing > me to > use the reset button. I lost my mbox file to this (from an ext3 fs, on > raid-1 on scsi.) Unless you are using data=journal and have turned write cache off on your IDE drives that is expected. Metadata journalling protects your file system intgerity. Data journalling is more expensive but will protect your file integrity if the disk layer is also correctly set up. Unfortunately the IDE layer defaults the wrong way and despite many complaints has not been changed. In later 2.6 with modern drives you can also enable barrier mode on the IDE layer which gives better results than turning off the write cache. Alan