From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763767AbXLMSxj (ORCPT ); Thu, 13 Dec 2007 13:53:39 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759021AbXLMSx2 (ORCPT ); Thu, 13 Dec 2007 13:53:28 -0500 Received: from palinux.external.hp.com ([192.25.206.14]:49717 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758783AbXLMSx1 (ORCPT ); Thu, 13 Dec 2007 13:53:27 -0500 Date: Thu, 13 Dec 2007 11:53:26 -0700 From: Matthew Wilcox To: Mark Lord Cc: Jens Axboe , IDE/ATA development list , Linux Kernel , linux-scsi Subject: Re: QUEUE_FLAG_CLUSTER: not working in 2.6.24 ? Message-ID: <20071213185326.GQ26334@parisc-linux.org> References: <47617B92.6020908@rtr.ca> <47617C07.3020501@rtr.ca> <47617E72.6080504@rtr.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47617E72.6080504@rtr.ca> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 13, 2007 at 01:48:18PM -0500, Mark Lord wrote: > Problem confirmed. 2.6.23.8 regularly generates segments up to 64KB for > libata, > but 2.6.24 uses only 4KB segments and a *few* 8KB segments. Just a suspicion ... could this be slab vs slub? ie check your configs are the same / similar between the two kernels. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step."