From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263653AbTLYGPz (ORCPT ); Thu, 25 Dec 2003 01:15:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263851AbTLYGPz (ORCPT ); Thu, 25 Dec 2003 01:15:55 -0500 Received: from thebsh.namesys.com ([212.16.7.65]:24027 "HELO thebsh.namesys.com") by vger.kernel.org with SMTP id S263653AbTLYGPy (ORCPT ); Thu, 25 Dec 2003 01:15:54 -0500 Message-ID: <3FEA8098.3000004@namesys.com> Date: Thu, 25 Dec 2003 09:15:52 +0300 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5) Gecko/20031007 X-Accept-Language: en-us, en MIME-Version: 1.0 To: "Eric D. Mudama" CC: linux-kernel@vger.kernel.org, Chris Mason Subject: Re: 2.6.0-test11 data loss References: <3FEA0C3C.9090601@cs.oswego.edu> <20031224222217.GA3408@mfa.kfki.hu> <200312250934.17913.kernel@kolivas.org> <20031225020738.GA24690@bounceswoosh.org> In-Reply-To: <20031225020738.GA24690@bounceswoosh.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Eric D. Mudama wrote: > > > > It seems to me that the problem occurred at a higher system level than > the disk, and disabling the write cache on the drive (besides being a > *HUGE* performance loser) will only make the window for failure > smaller, not eliminate it entirely. > You should only use write caching in kernels where write cache flushing is supported. Chris, which ones are those, could you remind us? -- Hans