Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261747AbUK2Px7 (ORCPT ); Mon, 29 Nov 2004 10:53:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261741AbUK2Pvz (ORCPT ); Mon, 29 Nov 2004 10:51:55 -0500 Received: from mx2.elte.hu ([157.181.151.9]:54740 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S261746AbUK2Pmh (ORCPT ); Mon, 29 Nov 2004 10:42:37 -0500 Date: Mon, 29 Nov 2004 16:42:16 +0100 From: Ingo Molnar To: Rui Nuno Capela Cc: linux-kernel@vger.kernel.org, Lee Revell , mark_h_johnson@raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Florian Schmidt , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese , Gunther Persoons , emann@mrv.com, Shane Shrybman , Amit Shah , Esben Nielsen Subject: Re: Real-Time Preemption, -RT-2.6.10-rc2-mm3-V0.7.31-7 Message-ID: <20041129154216.GA17337@elte.hu> References: <36536.195.245.190.93.1101471176.squirrel@195.245.190.93> <20041129111634.GB10123@elte.hu> <20041129112423.GA10386@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041129112423.GA10386@elte.hu> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1496 Lines: 43 > > --- ./drivers/alsa/alsa_driver.c.orig 2004-11-26 14:11:26.000000000 +0100 > > +++ ./drivers/alsa/alsa_driver.c 2004-11-26 14:24:41.000000000 +0100 find yet another approach below - it aborts jackd when the first xrun happens. Since an xrun can trigger other xruns, the most reliable trace would be the first xrun that triggers. Ingo --- ./drivers/alsa/alsa_driver.c.orig 2004-11-26 14:11:26.000000000 +0100 +++ ./drivers/alsa/alsa_driver.c 2004-11-29 17:39:15.985918576 +0100 @@ -1077,13 +1077,17 @@ alsa_driver_xrun_recovery (alsa_driver_t && driver->process_count > XRUN_REPORT_DELAY) { struct timeval now, diff, tstamp; driver->xrun_count++; + gettimeofday(0,0); gettimeofday(&now, 0); snd_pcm_status_get_trigger_tstamp(status, &tstamp); timersub(&now, &tstamp, &diff); *delayed_usecs = diff.tv_sec * 1000000.0 + diff.tv_usec; +#if 1 fprintf(stderr, "\n\n**** alsa_pcm: xrun of at least %.3f " "msecs\n\n", *delayed_usecs / 1000.0); +#endif + exit(-1); } if (alsa_driver_stop (driver) || @@ -1185,6 +1189,7 @@ alsa_driver_wait (alsa_driver_t *driver, nfds++; } + gettimeofday(0,1); poll_enter = jack_get_microseconds (); if (poll (driver->pfd, nfds, driver->poll_timeout) < 0) { - 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/