Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756825AbXLBUBH (ORCPT ); Sun, 2 Dec 2007 15:01:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755350AbXLBUAs (ORCPT ); Sun, 2 Dec 2007 15:00:48 -0500 Received: from lazybastard.de ([212.112.238.170]:42999 "EHLO longford.lazybastard.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755278AbXLBUAr convert rfc822-to-8bit (ORCPT ); Sun, 2 Dec 2007 15:00:47 -0500 Date: Sun, 2 Dec 2007 20:55:02 +0100 From: =?utf-8?B?SsO2cm4=?= Engel To: Ingo Molnar Cc: =?utf-8?B?SsO2cm4=?= Engel , Mark Lord , Pavel Machek , Mark Lord , Thomas Gleixner , len.brown@intel.com, Andrew Morton , linux-kernel@vger.kernel.org, linux-pm@lists.linux-foundation.org, rjw@sisk.pl Subject: Re: [BUG] Strange 1-second pauses during Resume-from-RAM Message-ID: <20071202195501.GB10657@lazybastard.org> References: <20071201151650.GA5031@lazybastard.org> <20071201183256.GA14052@elte.hu> <20071201204747.GA6458@lazybastard.org> <20071201205456.GA8231@elte.hu> <20071201234112.GA7209@lazybastard.org> <20071202085607.GA28966@elte.hu> <20071202113143.GA9378@lazybastard.org> <20071202135711.GA20434@elte.hu> <20071202141117.GB9516@lazybastard.org> <20071202154746.GA27069@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8BIT In-Reply-To: <20071202154746.GA27069@elte.hu> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 902 Lines: 26 On Sun, 2 December 2007 16:47:46 +0100, Ingo Molnar wrote: > > well what does the trace say, where do the delays come from? To get a > quick overview you can make tracing lighter weight by doing: > > echo 0 > /proc/sys/kernel/mcount_enabled > echo 1 > /proc/sys/kernel/trace_syscalls I mistyped and did echo 1 > /proc/sys/kernel/mcount_enabled Result looked like a livelock and finally convinced me to abandon the latency tracer. Sorry, but it appears to be the right tool for the wrong job. Jörn -- They laughed at Galileo. They laughed at Copernicus. They laughed at Columbus. But remember, they also laughed at Bozo the Clown. -- unknown -- 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/