Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932114AbWAJOEr (ORCPT ); Tue, 10 Jan 2006 09:04:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932132AbWAJOEr (ORCPT ); Tue, 10 Jan 2006 09:04:47 -0500 Received: from fest.stud.feec.vutbr.cz ([147.229.72.16]:27082 "EHLO fest.stud.feec.vutbr.cz") by vger.kernel.org with ESMTP id S932114AbWAJOEq (ORCPT ); Tue, 10 Jan 2006 09:04:46 -0500 Message-ID: <43C3BF00.9000901@stud.feec.vutbr.cz> Date: Tue, 10 Jan 2006 15:04:48 +0100 From: Michal Schmidt User-Agent: Debian Thunderbird 1.0.2 (X11/20051002) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Mark Knecht CC: Steven Rostedt , Ingo Molnar , Lee Revell , Linux Kernel Mailing List , Jan Engelhardt Subject: Re: 2.6.15-rt2 - repeatable xrun - no good data in trace References: <5bdc1c8b0601081252x59190f1ajcb5514364d78a4e@mail.gmail.com> <43C17E50.4060404@stud.feec.vutbr.cz> <5bdc1c8b0601081404n2a163ce1ya21919800546dfc8@mail.gmail.com> <20060110100517.GA23255@elte.hu> <1136900950.6197.33.camel@localhost.localdomain> <5bdc1c8b0601100555k7538924cx7a17b3e405771691@mail.gmail.com> In-Reply-To: <5bdc1c8b0601100555k7538924cx7a17b3e405771691@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1028 Lines: 25 Mark Knecht wrote: > While I have to agree that *if* cdrecord is running at a higher > priority then Jack would get trumped, I'm not positive yet that we > know that's true in this specific case. I have not yet received any > response from the developer of k3b, and while cdrecord is listed in > the setup of k3b I'm not sure how to test that it is really causing > the specific failure I saw. That shouldn't be too hard. While burning a CD, see the priority cdrecord is running at. You can use: ps -eo pid,user,args,pri | grep cdrecord Also see if you have cdrecord installed suid root: ls -l `which cdrecord` If you do, you can be pretty sure that it runs at the highest possible realtime priority. This is hardcoded in cdrecord. It does it if it runs priviledged. Michal - 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/