From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752724AbZBRJBS (ORCPT ); Wed, 18 Feb 2009 04:01:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751372AbZBRJBH (ORCPT ); Wed, 18 Feb 2009 04:01:07 -0500 Received: from courier.cs.helsinki.fi ([128.214.9.1]:55946 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751034AbZBRJBG (ORCPT ); Wed, 18 Feb 2009 04:01:06 -0500 Subject: Re: [patch] SLQB slab allocator (try 2) From: Pekka Enberg To: "Zhang, Yanmin" Cc: Christoph Lameter , Mel Gorman , Nick Piggin , Nick Piggin , Linux Memory Management List , Linux Kernel Mailing List , Andrew Morton , Lin Ming In-Reply-To: <1234946582.2604.423.camel@ymzhang> References: <20090123154653.GA14517@wotan.suse.de> <200902041748.41801.nickpiggin@yahoo.com.au> <20090204152709.GA4799@csn.ul.ie> <200902051459.30064.nickpiggin@yahoo.com.au> <20090216184200.GA31264@csn.ul.ie> <4999BBE6.2080003@cs.helsinki.fi> <1234890096.11511.6.camel@penberg-laptop> <1234919143.2604.417.camel@ymzhang> <1234943296.24030.2.camel@penberg-laptop> <1234946582.2604.423.camel@ymzhang> Date: Wed, 18 Feb 2009 11:01:04 +0200 Message-Id: <1234947664.24030.39.camel@penberg-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Evolution 2.22.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2009-02-18 at 16:43 +0800, Zhang, Yanmin wrote: > > > Code: be 3f 06 00 00 48 c7 c7 c7 96 80 80 e8 b8 e2 f9 ff e8 c5 c2 > 45 00 9c 5b fa 65 8b 04 25 24 00 00 00 48 98 49 8b 94 c4 e8 > > > RIP [] kmem_cache_alloc+0x43/0x97 > > > RSP > > > CR2: 0000000000000000 > > > ---[ end trace a7919e7f17c0a725 ]--- > > > swapper used greatest stack depth: 5376 bytes left > > > Kernel panic - not syncing: Attempted to kill init! > > > > Aah, we need to fix up some more PAGE_SHIFTs in the code. > The new patch fixes hang issue. netperf UDP-U-4k (start CPU_NUM clients) result is pretty good. Do you have your patch on top of it as well? Btw, can I add a Tested-by tag from you to the patch? Pekka