From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752463AbZIIABR (ORCPT ); Tue, 8 Sep 2009 20:01:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751972AbZIIABR (ORCPT ); Tue, 8 Sep 2009 20:01:17 -0400 Received: from mail-in-13.arcor-online.net ([151.189.21.53]:45688 "EHLO mail-in-13.arcor-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751362AbZIIABQ (ORCPT ); Tue, 8 Sep 2009 20:01:16 -0400 X-DKIM: Sendmail DKIM Filter v2.8.2 mail-in-07.arcor-online.net 9DB683CA1F8 Message-ID: <4AA6F04D.4020605@arcor.de> Date: Wed, 09 Sep 2009 03:01:17 +0300 From: Nikos Chantziaras Organization: Lucas Barks User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.1) Gecko/20090826 Thunderbird/3.0b3 MIME-Version: 1.0 To: Frans Pop CC: linux-kernel@vger.kernel.org, Ingo Molnar , Peter Zijlstra , Jens Axboe Subject: Re: [long] Another BFS versus CFS shakedown References: <200909090142.41738.elendil@planet.nl> In-Reply-To: <200909090142.41738.elendil@planet.nl> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/09/2009 02:42 AM, Frans Pop wrote: > But this evening, while I was preparing and running the tests, I've had 4 > freezes of the desktop. Unfortunately BFS doesn't provide a reliable way (yet?) to run such tests on it. This might be the cause for the hangs (from bfs-faq.txt): Currently known problems? [...] 3. Stuck tasks after extensive use of trace functions (ptrace etc.). [...] 5. More likely to show up bugs in *other* code due to being much more aggressive at using multiple CPUs so race conditions will show up more frequently.