Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269367AbUJWDFP (ORCPT ); Fri, 22 Oct 2004 23:05:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269284AbUJWDDI (ORCPT ); Fri, 22 Oct 2004 23:03:08 -0400 Received: from viper.oldcity.dca.net ([216.158.38.4]:6359 "HELO viper.oldcity.dca.net") by vger.kernel.org with SMTP id S269681AbUJWCwj (ORCPT ); Fri, 22 Oct 2004 22:52:39 -0400 Subject: Re: 2.6.9-ck1: swap mayhem under UT2004 From: Lee Revell To: Con Kolivas Cc: Alastair Stevens , linux-kernel@vger.kernel.org In-Reply-To: <41799FE0.1020403@kolivas.org> References: <200410222346.32823.alastair@altruxsolutions.co.uk> <41799FE0.1020403@kolivas.org> Content-Type: text/plain Date: Fri, 22 Oct 2004 22:52:37 -0400 Message-Id: <1098499957.9092.19.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 829 Lines: 23 On Sat, 2004-10-23 at 10:03 +1000, Con Kolivas wrote: > > Any ideas? Any more info required? > > I've seen reports of this happening since 2.6.9 _even on mainline_. > Something seems very sick with kswapd where it consumes massive amounts > of cpu. Can you reproduce without any -ck patches? Others have already > done so, but it seems to happen earlier with -ck. One thing that comes to mind immediately is AM's patch to optimize the swap space layout: http://lkml.org/lkml/2004/9/9/254 This is definitely in mainline now, not sure when it went in. Try backing it out. Lee - 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/