Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751953AbaGJSBg (ORCPT ); Thu, 10 Jul 2014 14:01:36 -0400 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.232]:42783 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751361AbaGJSBf (ORCPT ); Thu, 10 Jul 2014 14:01:35 -0400 Date: Thu, 10 Jul 2014 14:01:25 -0400 From: Steven Rostedt To: Tuomas Tynkkynen Cc: , Ingo Molnar , Andrew Morton Subject: Re: [for-next][PATCH 04/21] ftrace: Optimize function graph to be called directly Message-ID: <20140710140125.0f585a84@gandalf.local.home> In-Reply-To: <53BED155.9040607@nvidia.com> References: <20140703160503.006976702@goodmis.org> <20140703161224.062459692@goodmis.org> <53BED155.9040607@nvidia.com> X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.23; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-RR-Connecting-IP: 107.14.168.118:25 X-Cloudmark-Score: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 10 Jul 2014 20:45:57 +0300 Tuomas Tynkkynen wrote: > This commit (79922b8) breaks the function graph tracer on today's -next. > This is on an ARM Tegra board. > > I'm using ftrace with this script: > > #!/bin/sh > echo function_graph > /d/tracing/current_tracer > echo clear > /d/tracing/trace > echo $$ > /d/tracing/set_ftrace_pid > exec "$@" > > ...and a simple './trace.sh ls' crashes with no console output. SysRq is > not responsive either. Thanks for the report. I'll boot up one of my arm boards and see if I can reproduce it. I'll try to get to it either this week or next. -- Steve -- 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/