Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262149AbUKVQu0 (ORCPT ); Mon, 22 Nov 2004 11:50:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261537AbUKVQsO (ORCPT ); Mon, 22 Nov 2004 11:48:14 -0500 Received: from [199.46.245.231] ([199.46.245.231]:46974 "EHLO tus-gate2.ext.ray.com") by vger.kernel.org with ESMTP id S262139AbUKVQqb (ORCPT ); Mon, 22 Nov 2004 11:46:31 -0500 Subject: Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.30-2 To: Ingo Molnar Cc: Amit Shah , Karsten Wiese , Bill Huey , Adam Heath , emann@mrv.com, Gunther Persoons , "K.R. Foley" , linux-kernel@vger.kernel.org, Florian Schmidt , Fernando Pablo Lopez-Lezcano , Lee Revell , Rui Nuno Capela , Shane Shrybman , Esben Nielsen , Thomas Gleixner , Michal Schmidt X-Mailer: Lotus Notes Release 5.0.8 June 18, 2001 Message-ID: From: Mark_H_Johnson@raytheon.com Date: Mon, 22 Nov 2004 10:44:01 -0600 X-MIMETrack: Serialize by Router on RTSHOU-DS01/RTS/Raytheon/US(Release 6.5.2|June 01, 2004) at 11/22/2004 10:44:06 AM MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII X-SPAM: 0.00 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1117 Lines: 30 >Just did a build with -V0.7.30-2 and was about to start testing when >the system locked up (no keyboard response, display frozen, etc.). ... Same symptom with a slightly different set of steps leading to the problem. - boot / telinit 5 OK - su'd to get privileges - cat /proc/sys/kernel/preempt_wakeup_latency (showed 0) - echo 1 > /proc/sys/kernel/preempt_wakeup_latency - set RT priorities as before - started scripts to record data - system-config-soundcard (newline shown) At this point, the system is locked up again with no response to any inputs. One thing I did notice from the previous test, I had two output files from preempt_trace showing a couple minor (just over 50 usec each) wakeup traces. I have a few ideas to simplify the set up to see if I can get some useful data out of the system. --Mark H Johnson - 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/