Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263458AbUJ3DJc (ORCPT ); Fri, 29 Oct 2004 23:09:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263429AbUJ3DJc (ORCPT ); Fri, 29 Oct 2004 23:09:32 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:54459 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S263458AbUJ3DJ0 (ORCPT ); Fri, 29 Oct 2004 23:09:26 -0400 Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4 From: Lee Revell To: Florian Schmidt Cc: Rui Nuno Capela , Ingo Molnar , linux-kernel@vger.kernel.org, mark_h_johnson@raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Thomas Gleixner , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese In-Reply-To: <20041029163135.1886d67f@mango.fruits.de> References: <5225.195.245.190.94.1098880980.squirrel@195.245.190.94> <20041027135309.GA8090@elte.hu> <12917.195.245.190.94.1098890763.squirrel@195.245.190.94> <20041027205126.GA25091@elte.hu> <20041027211957.GA28571@elte.hu> <33083.192.168.1.5.1098919913.squirrel@192.168.1.5> <20041028063630.GD9781@elte.hu> <20668.195.245.190.93.1098952275.squirrel@195.245.190.93> <20041028085656.GA21535@elte.hu> <26253.195.245.190.93.1098955051.squirrel@195.245.190.93> <20041028093215.GA27694@elte.hu> <43163.195.245.190.94.1098981230.squirrel@195.245.190.94> <20041029163135.1886d67f@mango.fruits.de> Content-Type: text/plain Date: Fri, 29 Oct 2004 23:09:24 -0400 Message-Id: <1099105764.1504.4.camel@krustophenia.net> Mime-Version: 1.0 X-Mailer: Evolution 2.0.2 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 972 Lines: 22 On Fri, 2004-10-29 at 16:31 +0200, Florian Schmidt wrote: > i tried a V0.5.2 with PREEMPT_REALTIME and all debugging off (config > attached). I cannot reproduce your results. I have experienced around 30 > xruns in 10 minutes. And big ones, too (> 5ms). I don't know exactly what > kind of load triggers them. Here's a bit of qjackctl message window (btw: > jackd was idle, no clients connected, except for qjackctl): > I am seeing the same behavior, about 30 xruns in 10 minutes. It seems to be triggered by display activity, among other things. This cannot be a jackd issue, because with an earlier version (T3) I can run for 24 hours without a single xrun. There has to be a bug somewhere in the RT preempt patch. Lee - 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/