From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269119AbUJQNb0 (ORCPT ); Sun, 17 Oct 2004 09:31:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269121AbUJQNb0 (ORCPT ); Sun, 17 Oct 2004 09:31:26 -0400 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:52205 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S269119AbUJQNbW (ORCPT ); Sun, 17 Oct 2004 09:31:22 -0400 Message-ID: <4172741D.1090800@pobox.com> Date: Sun, 17 Oct 2004 09:31:09 -0400 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040922 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org, ak@suse.de, axboe@suse.de Subject: Re: Hang on x86-64, 2.6.9-rc3-bk4 References: <41719537.1080505@pobox.com> <417196AA.3090207@pobox.com> <20041016154818.271a394b.akpm@osdl.org> <4171B23F.6060305@pobox.com> <20041016171458.4511ad8b.akpm@osdl.org> <4171C20D.1000105@pobox.com> <20041016182116.33b3b788.akpm@osdl.org> In-Reply-To: <20041016182116.33b3b788.akpm@osdl.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 Andrew Morton wrote: > Jeff Garzik wrote: > >>>Can we get a sysrq-M dump from that machine please? >> >> alas, for the 'hang' case, my during-initscripts console is going to >> strange place. here's sysrq-m from 2.6.9-rc3-bk4 with the mm/vmscan.c >> patch reverted (the its-fixed version). > > > Is cool - I was wondering if you had the same funny NUMA zone layout. You > do not. > > So there's some new non-terminating condition in there. It's definitely > the case that we're still failing to throttle kswapd as we should be doing, > but I left it as-is due to lack of reported problems (hah) and because the > fix does cause less reclaim via kswapd and more reclaim via direct reclaim. > > Still. The relevant patches, in order, are at > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.9-rc4/2.6.9-rc4-mm1/broken-out: > > vmscan-total_scanned-fix.patch > revert-vm-no-wild-kswapd.patch > balance_pgdat-cleanup.patch > no-wild-kswapd-2.patch > no-wild-kswapd-kswapd-continue.patch > > I expect the first one will fix this up. Can you confirm? FWIW, I verified that "vmscan-total_scanned-fix.patch" fixes the hang on both 2.6.9-rc3-bk4 and 2.6.9-final. Jeff