Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753760AbZIRDAF (ORCPT ); Thu, 17 Sep 2009 23:00:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751923AbZIRDAE (ORCPT ); Thu, 17 Sep 2009 23:00:04 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:47815 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751825AbZIRDAD (ORCPT ); Thu, 17 Sep 2009 23:00:03 -0400 Date: Thu, 17 Sep 2009 19:59:09 -0700 From: Andrew Morton To: "Zhang, Yanmin" Cc: Hugh Dickins , Peter Zijlstra , LKML , Ingo Molnar , Arjan van de Ven , Andi Kleen , "lee.schermerhorn@hp.com" Subject: Re: aim7 scalability issue on 4 socket machine Message-Id: <20090917195909.3a00ef83.akpm@linux-foundation.org> In-Reply-To: <1253239339.2606.40.camel@ymzhang> References: <1253179879.2606.37.camel@ymzhang> <1253180411.8497.1.camel@twins> <1253239339.2606.40.camel@ymzhang> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.5; 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 List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1228 Lines: 31 On Fri, 18 Sep 2009 10:02:19 +0800 "Zhang, Yanmin" wrote: > > > Did you see Lee's patch?: > > > > > > http://lkml.org/lkml/2009/9/9/290 > > > > > > Added Lee and Hugh to CC, retained the below patch for them. > > > > Thanks a lot for the CC, Peter. > > See my reply to that mail for the slightly corrected version. > > > > Yes, Yanmin and Lee appear to be fixing exactly the same issue. > > I haven't thought through Yanmin's version for correctness, but > > it lacks the vm_start check I added to Lee's, and I do prefer > > Lee's style - hey, nothing personal! > > > > So, Yanmin, please retest with http://lkml.org/lkml/2009/9/13/25 > > and let us know if that works as well for you - thanks. > I tested Lee's patch and it does fix the issue. Do we think we should cook up something for -stable? Either this is a regression or the workload is particularly obscure. aim7 is sufficiently non-obscure to make me wonder what's happened here? -- 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/