Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754362Ab3H1ObF (ORCPT ); Wed, 28 Aug 2013 10:31:05 -0400 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122]:6111 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752869Ab3H1ObD (ORCPT ); Wed, 28 Aug 2013 10:31:03 -0400 X-Authority-Analysis: v=2.0 cv=fJG7LOme c=1 sm=0 a=Sro2XwOs0tJUSHxCKfOySw==:17 a=Drc5e87SC40A:10 a=jxQzypR4wcoA:10 a=5SG0PmZfjMsA:10 a=kj9zAlcOel0A:10 a=meVymXHHAAAA:8 a=KGjhK52YXX0A:10 a=qWrlR9Lw5PkA:10 a=nstwEb_VeCF9HUpF9ysA:9 a=CjuIK1q_8ugA:10 a=Sro2XwOs0tJUSHxCKfOySw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 67.255.60.225 Date: Wed, 28 Aug 2013 10:31:01 -0400 From: Steven Rostedt To: Dave Jones Cc: Linux Kernel Subject: Re: FTRACE_WARN_ON((rec->flags & ~FTRACE_FL_MASK) == 0)) Message-ID: <20130828103101.3f5679bc@gandalf.local.home> In-Reply-To: <20130828034627.GA30596@redhat.com> References: <20130828034627.GA30596@redhat.com> X-Mailer: Claws Mail 3.9.2 (GTK+ 2.24.20; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1036 Lines: 22 Dave, BTW, is there a way to run trinity on a subset of syscalls. Basically, I would like to run it on just the perf code, and nothing else. I have a feeling that the bug you see is not caused by other operations happening (although it could be), but from just out of order perf calls. If I can reproduce it, I'll have a much better way of debugging this. Perhaps another thing you may think of adding to trinity (if it doesn't already exist), is a log of what it is doing. That is, to log somewhere the commands it writes, and that way, if something goes wrong, you have a clue to how it got there. Because this is one of those bugs that triggered before the code crashes, and the crash is just the symptom of what went wrong and does not give you much clue to how it happened. -- 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/