From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932163AbXBAWpz (ORCPT ); Thu, 1 Feb 2007 17:45:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932783AbXBAWpz (ORCPT ); Thu, 1 Feb 2007 17:45:55 -0500 Received: from services110.cs.uwaterloo.ca ([129.97.152.166]:54486 "EHLO services110.cs.uwaterloo.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932163AbXBAWpy (ORCPT ); Thu, 1 Feb 2007 17:45:54 -0500 X-Greylist: delayed 470 seconds by postgrey-1.27 at vger.kernel.org; Thu, 01 Feb 2007 17:45:54 EST Subject: Re: [PATCH] mm: fix page_mkclean_one From: Mark Groves To: linux-kernel@vger.kernel.org Content-Type: text/plain Message-Id: <1170369622.3453.72.camel@garangu> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 (1.4.5-7) Date: Thu, 01 Feb 2007 17:40:22 -0500 Content-Transfer-Encoding: 7bit X-Miltered: at demeter with ID 45C26BC4.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-UUID: 04ec070b-d3f7-4c40-8913-99e8e786623a Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I have been been seeing a problem when using sendfile repeatedly on an SMP server, which I believe is related to the problem that was discovered recently with marking dirty pages. The bug, as well as a test script, is listed at http://bugzilla.kernel.org/show_bug.cgi?id=7650. Currently, we're experiencing errors where part of a previous packet is being sent out rather than the current packet. I have applied the patch Linus posted to a 2.6.19 kernel but am still getting the problem. So I am wondering if there are any other places in the kernel which mark pages as dirty which might require a similar patch? Regards, Mark Groves Researcher University of Waterloo Waterloo, Ontario, Canada