Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267702AbUJHDQX (ORCPT ); Thu, 7 Oct 2004 23:16:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267561AbUJHDPo (ORCPT ); Thu, 7 Oct 2004 23:15:44 -0400 Received: from fw.osdl.org ([65.172.181.6]:55481 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S267487AbUJHDID (ORCPT ); Thu, 7 Oct 2004 23:08:03 -0400 Date: Thu, 7 Oct 2004 20:01:09 -0700 From: Andrew Morton To: Nick Piggin Cc: chrisw@osdl.org, nickpiggin@yahoo.com.au, linux-kernel@vger.kernel.org, Dave Jones Subject: Re: kswapd in tight loop 2.6.9-rc3-bk-recent Message-Id: <20041007200109.57ce24ae.akpm@osdl.org> In-Reply-To: <4165FF7B.1070302@cyberone.com.au> References: <20041007142019.D2441@build.pdx.osdl.net> <20041007164044.23bac609.akpm@osdl.org> <4165E0A7.7080305@yahoo.com.au> <20041007174242.3dd6facd.akpm@osdl.org> <20041007184134.S2357@build.pdx.osdl.net> <20041007185131.T2357@build.pdx.osdl.net> <20041007185352.60e07b2f.akpm@osdl.org> <4165FF7B.1070302@cyberone.com.au> X-Mailer: Sylpheed version 0.9.7 (GTK+ 1.2.10; i386-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 X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1530 Lines: 41 Nick Piggin wrote: > > >Chris Wright wrote: > > > >>(whereas I could get the mainline code, and the > >> one-liner to spin right off). > >> > > > >How? (up to and including .config please). > > > > > > > > Ah, free_pages <= pages_high, ie. 0 <= 0, which is true; > commence spinning. Maybe. It requires that the zonelists be screwy: Node 1 DMA free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB protections[]: 0 0 0 Node 1 Normal free:25272kB min:1020kB low:2040kB high:3060kB active:624172kB inactive:282700kB present:1047936kB protections[]: 0 0 0 Node 1 HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB protections[]: 0 0 0 Node 0 DMA free:728kB min:12kB low:24kB high:36kB active:788kB inactive:7848kB present:16384kB protections[]: 0 0 0 Node 0 Normal free:27200kB min:1004kB low:2008kB high:3012kB active:332792kB inactive:422744kB present:1032188kB protections[]: 0 0 0 Node 0 HighMem free:0kB min:128kB low:256kB high:384kB active:0kB inactive:0kB present:0kB protections[]: 0 0 0 See that DMA zone on node 1? Wonder how it got like that. It should not be inside pgdat->nrzones anyway. David, is your setup NUMA? Can you show us a sysrq-M dump? - 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/