Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964924AbWL1GKz (ORCPT ); Thu, 28 Dec 2006 01:10:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964943AbWL1GKz (ORCPT ); Thu, 28 Dec 2006 01:10:55 -0500 Received: from mga01.intel.com ([192.55.52.88]:27817 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964924AbWL1GKy (ORCPT ); Thu, 28 Dec 2006 01:10:54 -0500 X-ExtLoop1: 1 X-IronPort-AV: i="4.12,214,1165219200"; d="scan'208"; a="182341216:sNHT22382885" From: "Chen, Kenneth W" To: "'Linus Torvalds'" , "David Miller" Cc: , , , "Peter Zijlstra" , , "Andrew Morton" , , , , "Linux Kernel Mailing List" Subject: RE: [PATCH] mm: fix page_mkclean_one Date: Wed, 27 Dec 2006 22:10:52 -0800 Message-ID: <000101c72a46$ee2296b0$bc84030a@amr.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 Thread-Index: AccqLS9Kqo4sjztNSZqePKJs01fm0gAFnoNAAACayxA= In-Reply-To: <000001c72a44$c3da12e0$bc84030a@amr.corp.intel.com> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1455 Lines: 36 Chen, Kenneth wrote on Wednesday, December 27, 2006 9:55 PM > Linus Torvalds wrote on Wednesday, December 27, 2006 7:05 PM > > On Wed, 27 Dec 2006, David Miller wrote: > > > > > > > > I still don't see _why_, though. But maybe smarter people than me can see > > > > it.. > > > > > > FWIW this program definitely triggers the bug for me. > > > > Ok, now that I have something simple to do repeatable stuff with, I can > > say what the pattern is.. It's not all that surprising, but it's still > > worth just stating for the record. > > > Running the test code, git bisect points its finger at this commit. Reverting > this commit on top of 2.6.20-rc2 doesn't trigger the bug from the test code. > > edc79b2a46ed854595e40edcf3f8b37f9f14aa3f is first bad commit > commit edc79b2a46ed854595e40edcf3f8b37f9f14aa3f > Author: Peter Zijlstra > Date: Mon Sep 25 23:30:58 2006 -0700 > > [PATCH] mm: balance dirty pages > > Now that we can detect writers of shared mappings, throttle them. Avoids OOM > by surprise. Oh, never mind :-( I just didn't create enough write out pressure when test this. I just saw bug got triggered on a kernel I previously thought was OK. - 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/