Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751363AbVI1Q3V (ORCPT ); Wed, 28 Sep 2005 12:29:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751351AbVI1Q3V (ORCPT ); Wed, 28 Sep 2005 12:29:21 -0400 Received: from smtp3.Stanford.EDU ([171.67.16.138]:3555 "EHLO smtp3.Stanford.EDU") by vger.kernel.org with ESMTP id S1751363AbVI1Q3U (ORCPT ); Wed, 28 Sep 2005 12:29:20 -0400 Subject: Re: jack, PREEMPT_DESKTOP, delayed interrupts? From: Fernando Lopez-Lezcano To: Ingo Molnar Cc: nando@ccrma.Stanford.EDU, Karsten Wiese , linux-kernel@vger.kernel.org In-Reply-To: <20050928093846.GA30962@elte.hu> References: <200509262108.55448.annabellesgarden@yahoo.de> <20050928093846.GA30962@elte.hu> Content-Type: text/plain Date: Wed, 28 Sep 2005 09:29:07 -0700 Message-Id: <1127924947.24916.1.camel@cmn3.stanford.edu> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1001 Lines: 27 On Wed, 2005-09-28 at 11:38 +0200, Ingo Molnar wrote: > * Karsten Wiese wrote: > > > > latency: 10852 us, #70/70, CPU#0 | (M:preempt VP:0, KP:1, SP:1 HP:1 > > > > softirq--8 0Dnh4 9901us : trace_change_sched_cpu (1 0 0) > > > > Maybe your ethernet device is getting in the way. > > Do you also get jack dropouts with ethernet chip disabled, > > it's Module unloaded? > > also, the M:preempt suggests that it's not a PREEMPT_RT kernel but a > PREEMPT_DESKTOP kernel. Do the dropouts happen even with a PREEMPT_RT > kernel? Last time I tried a PREEMPT_RT (not that long ago) I was not able to boot into it, it was failing very very early in the boot sequence. I could try again if it would be valuable. -- Fernando - 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/