From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932369AbVHaFMw (ORCPT ); Wed, 31 Aug 2005 01:12:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932370AbVHaFMw (ORCPT ); Wed, 31 Aug 2005 01:12:52 -0400 Received: from smtp3.Stanford.EDU ([171.67.16.138]:53423 "EHLO smtp3.Stanford.EDU") by vger.kernel.org with ESMTP id S932369AbVHaFMw (ORCPT ); Wed, 31 Aug 2005 01:12:52 -0400 Subject: Re: jack, PREEMPT_DESKTOP, delayed interrupts? From: Fernando Lopez-Lezcano To: Lee Revell Cc: jackit-devel@lists.sourceforge.net, Ingo Molnar , linux-kernel@vger.kernel.org, cc@ccrma.Stanford.EDU In-Reply-To: <1125455943.19563.38.camel@mindpipe> References: <1125453795.25823.121.camel@cmn37.stanford.edu> <1125455943.19563.38.camel@mindpipe> Content-Type: text/plain Organization: Message-Id: <1125465127.15006.49.camel@cmn37.stanford.edu> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 30 Aug 2005 22:12:08 -0700 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2005-08-30 at 19:39, Lee Revell wrote: > On Tue, 2005-08-30 at 19:03 -0700, Fernando Lopez-Lezcano wrote: > > Hi, I'm starting to look at a strange problem. The configuration is: > > hardware: AMD X2 4400+ dual core, NForce3 chipset, Midiman 66 soundcard > > software: 2.6.13 smp + patch-2.6.13-rt1, PREEMPT_DESKTOP > > jack 0.100.4, current cvs > > alsa 1.0.10rc1 > > > > Enable all latency debug options and post the contents > of /proc/latency_trace when this happens. Will try to, I'm about to go on a trip so that may have to wait. > Also what file system are you using? Ext3, Jack mounts its pipes and stuff in /dev/shm > And is the SMT scheduler enabled? Is this it?: CONFIG_SCHED_SMT=y -- Fernando