Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751436Ab3IRNXj (ORCPT ); Wed, 18 Sep 2013 09:23:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55747 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750942Ab3IRNXi (ORCPT ); Wed, 18 Sep 2013 09:23:38 -0400 Date: Wed, 18 Sep 2013 09:22:49 -0400 From: Dave Jones To: Peter Zijlstra Cc: Steven Rostedt , Linux Kernel , Frederic Weisbecker , Ingo Molnar Subject: Re: trinity finds ftrace/perf bug. Film at 11. Message-ID: <20130918132249.GA13402@redhat.com> Mail-Followup-To: Dave Jones , Peter Zijlstra , Steven Rostedt , Linux Kernel , Frederic Weisbecker , Ingo Molnar References: <20130911135434.GA678@redhat.com> <20130912141913.2ffc7077@gandalf.local.home> <20130913105637.GM31370@twins.programming.kicks-ass.net> <20130913141638.GA6799@redhat.com> <20130916093719.GR21832@twins.programming.kicks-ass.net> <20130916164421.GA17568@redhat.com> <20130918113410.GJ9326@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130918113410.GJ9326@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1074 Lines: 28 On Wed, Sep 18, 2013 at 01:34:11PM +0200, Peter Zijlstra wrote: > On Mon, Sep 16, 2013 at 12:44:21PM -0400, Dave Jones wrote: > > > > may be some other option.. Try http://www.codemonkey.org.uk/junk/haswell-config > > > > > What kind of hardware are you running this on? > > > > model name : Intel(R) Core(TM) i5-4670T CPU @ 2.30GHz > > Humpf,.. of course I don't have a hsw system :/ > > I'll try raising the -C count to 4*nr_cpus for the next few runs. > > OK, seems I need to edit trinity for that, someone thought 64 was a big > number. heh, at one time, the walk through the list of child processes in watchdog.c was taking so long that it considered children that hadn't been scheduled for a while as stuck. I'm not sure that's any better right now, so you might have to modify that code too. Dave -- 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/