From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755160AbXIQRF4 (ORCPT ); Mon, 17 Sep 2007 13:05:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752862AbXIQRFs (ORCPT ); Mon, 17 Sep 2007 13:05:48 -0400 Received: from mx1.redhat.com ([66.187.233.31]:38988 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751312AbXIQRFr (ORCPT ); Mon, 17 Sep 2007 13:05:47 -0400 Message-ID: <46EEB3AC.20205@redhat.com> Date: Mon, 17 Sep 2007 13:04:44 -0400 From: Rik van Riel Organization: Red Hat, Inc User-Agent: Thunderbird 1.5.0.7 (X11/20061008) MIME-Version: 1.0 To: Nick Piggin CC: Anton Altaparmakov , Andrew Morton , Peter Zijlstra , Linux Kernel Mailing List , Linux Memory Management List , marc.smith@esmail.mcc.edu Subject: Re: VM/VFS bug with large amount of memory and file systems? References: <13126578-A4F8-43EA-9B0D-A3BCBFB41FEC@cam.ac.uk> <200709170828.01098.nickpiggin@yahoo.com.au> In-Reply-To: <200709170828.01098.nickpiggin@yahoo.com.au> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Nick Piggin wrote: > (Rik has a patch sitting in -mm I believe which would make this problem > even worse, by doing even less highmem scanning in response to lowmem > allocations). My patch should not make any difference here, since balance_pgdat() already scans the zones from high to low and sets an end_zone variable that determines the highest zone to scan. All my patch does is make sure that we do not try to reclaim excessive amounts of dma or low memory when a higher zone is full. -- Politics is the struggle between those who want to make their country the best in the world, and those who believe it already is. Each group calls the other unpatriotic.