From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753665AbWL1RKg (ORCPT ); Thu, 28 Dec 2006 12:10:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753668AbWL1RKg (ORCPT ); Thu, 28 Dec 2006 12:10:36 -0500 Received: from smtp.osdl.org ([65.172.181.25]:44738 "EHLO smtp.osdl.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753620AbWL1RKf (ORCPT ); Thu, 28 Dec 2006 12:10:35 -0500 Date: Thu, 28 Dec 2006 09:08:26 -0800 (PST) From: Linus Torvalds To: Gordon Farquharson cc: David Miller , ranma@tdiedrich.de, tbm@cyrius.com, Peter Zijlstra , andrei.popa@i-neo.ro, Andrew Morton , hugh@veritas.com, nickpiggin@yahoo.com.au, arjan@infradead.org, Linux Kernel Mailing List Subject: Re: [PATCH] mm: fix page_mkclean_one In-Reply-To: <97a0a9ac0612272158h72f75a2bt22eccddcbbb2d9a9@mail.gmail.com> Message-ID: References: <20061226.205518.63739038.davem@davemloft.net> <20061227.165246.112622837.davem@davemloft.net> <97a0a9ac0612272032uf5358c4qf12bf183f97309a6@mail.gmail.com> <97a0a9ac0612272115g4cce1f08n3c3c8498a6076bd5@mail.gmail.com> <97a0a9ac0612272158h72f75a2bt22eccddcbbb2d9a9@mail.gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 27 Dec 2006, Gordon Farquharson wrote: > > 100kB and 200kB files always succeed on the ARM system. 400kB and > larger always seem to fail. Oh, wow. Yeah, I've just repressed how tiny 32MB is. And especially if you lowered the /proc/sys/vm/dirty_ratio to a smaller percentage, I guess 400kB should be enough to cause writeback. Ugh. I tested a 128MB machine a few weeks ago, and found it painful. Linus