Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965033AbaD2TVw (ORCPT ); Tue, 29 Apr 2014 15:21:52 -0400 Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.231]:61482 "EHLO cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932759AbaD2TVv (ORCPT ); Tue, 29 Apr 2014 15:21:51 -0400 Date: Tue, 29 Apr 2014 15:21:48 -0400 From: Steven Rostedt To: Vince Weaver Cc: Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [perf] more perf_fuzzer memory corruption Message-ID: <20140429152148.5efd48f3@gandalf.local.home> In-Reply-To: References: <20140417142213.GA29338@gmail.com> <20140417145418.GM11096@twins.programming.kicks-ass.net> <20140418152314.GY11182@twins.programming.kicks-ass.net> <20140418165958.GQ13658@twins.programming.kicks-ass.net> <20140418171516.GR13658@twins.programming.kicks-ass.net> <20140429085236.GO27561@twins.programming.kicks-ass.net> X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; 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 Tue, 29 Apr 2014 14:11:09 -0400 (EDT) Vince Weaver wrote: > I've actually given up on source code inspection to figure out what's > going on in kernel/events/core.c. What I do now is write simple test > cases and do an ftrace function trace. The results are often surprising. You might want to remove this from the kernel/events/Makefile: ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_core.o = -pg endif It will let you function trace more of what is happening. -- 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/