Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 3 Oct 2001 09:24:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 3 Oct 2001 09:23:58 -0400 Received: from ns.suse.de ([213.95.15.193]:49157 "HELO Cantor.suse.de") by vger.kernel.org with SMTP id convert rfc822-to-8bit; Wed, 3 Oct 2001 09:23:48 -0400 Date: Wed, 3 Oct 2001 15:24:16 +0200 (CEST) From: Dave Jones To: =?iso-8859-1?Q?Ragnar_Kj=F8rstad?= Cc: Rik van Riel , "sebastien.cabaniols" , Subject: Re: [POT] Which journalised filesystem ? In-Reply-To: <20011003150145.D8709@vestdata.no> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 3 Oct 2001, Ragnar Kj?rstad wrote: > If a disk is doing write-back caching, it's likely to break all > journaling filesystem and anything else that relies on write ordering. Yup, I know this *now* :-) My point is that I had no idea the drive was doing write-caching. hdparm only offers an option to set it to on/off, not to query it. Just disabling it in a boot up script *might* be enough to make this safe again, but I've not looked at the hdparm & IDE code, so this is just a theory. regards, Dave. -- | Dave Jones. http://www.suse.de/~davej | SuSE Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/