From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755274AbYLCUuc (ORCPT ); Wed, 3 Dec 2008 15:50:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750770AbYLCUuW (ORCPT ); Wed, 3 Dec 2008 15:50:22 -0500 Received: from smtp1.linux-foundation.org ([140.211.169.13]:50676 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748AbYLCUuV (ORCPT ); Wed, 3 Dec 2008 15:50:21 -0500 Date: Wed, 3 Dec 2008 12:49:15 -0800 From: Andrew Morton To: Steven Rostedt Cc: linux-kernel@vger.kernel.org, mingo@elte.hu, fweisbec@gmail.com, peterz@infradead.org, arjan@infradead.org, dave@linux.vnet.ibm.com, containers@lists.osdl.org, ebiederm@xmission.com, sukadev@linux.vnet.ibm.com, serue@us.ibm.com, srostedt@redhat.com Subject: Re: [PATCH 3/3] ftrace: trace single pid for function graph tracer Message-Id: <20081203124915.2eb9e7cd.akpm@linux-foundation.org> In-Reply-To: <20081203203829.362295724@goodmis.org> References: <20081203203656.776893226@goodmis.org> <20081203203829.362295724@goodmis.org> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-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 On Wed, 03 Dec 2008 15:36:59 -0500 Steven Rostedt wrote: > This patch makes the changes to set_ftrace_pid apply to the function > graph tracer. That sentence needs help. > # echo $$ > /debugfs/tracing/set_ftrace_pid > # echo function_graph > /debugfs/tracing/current_tracer > > Will cause only the current task to be traced. Note, the trace flags are > also inherited by child processes, so the children of the shell > will also be traced. Where did we end up on the pids-arent-unique issue? Gave up?