Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932535AbXKPTHA (ORCPT ); Fri, 16 Nov 2007 14:07:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755970AbXKPTGx (ORCPT ); Fri, 16 Nov 2007 14:06:53 -0500 Received: from rtr.ca ([76.10.145.34]:2182 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753370AbXKPTGw (ORCPT ); Fri, 16 Nov 2007 14:06:52 -0500 Message-ID: <473DEA4A.2030606@rtr.ca> Date: Fri, 16 Nov 2007 14:06:50 -0500 From: Mark Lord User-Agent: Thunderbird 2.0.0.9 (X11/20071031) MIME-Version: 1.0 To: Ingo Molnar Cc: 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 References: <4739ADA2.4060604@rtr.ca> <4739E347.30406@rtr.ca> <473C7495.40805@rtr.ca> <20071115181418.GA6603@ucw.cz> <473C825E.3030307@rtr.ca> <20071115193424.GA31691@elte.hu> <20071115193612.GA751@elte.hu> <473CC6D4.2010909@rtr.ca> <20071116055531.GA16273@elte.hu> <20071116071522.GA1453@elte.hu> In-Reply-To: <20071116071522.GA1453@elte.hu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1200 Lines: 31 Ingo Molnar wrote: > * Ingo Molnar wrote: > >>> Is there a version of these that works with 2.6.23.1 ? >> yes, i've backported it and have uploaded the v2.6.23 version to: >> >> http://redhat.com/~mingo/latency-tracing-patches/latency-tracer-v2.6.23.1-combo.patch .. > ok, i experimented around with the latency tracer, trying to capture the > trace of a full suspend+resume cycle, and it needed the tracer fix below > (GTOD clocksource suspend/resume would otherwise confuse the tracer and > you'd get no trace output as a result). > > once that tracer bug was fixed, the best method to generate a trace was > to do this: > > echo 1 > /proc/sys/kernel/stackframe_tracing > echo 1 > /proc/sys/kernel/syscall_tracing > ./trace-cmd bash -c "echo mem > /sys/power/state" > trace.txt .. I've applied the tracer for 2.6.23.1 patch, plus the bugfix, and now I just get blinking-LEDs (black screen of death) on resume. Cheers - 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/