From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: [PATCH 3/3] ftrace: trace single pid for function graph tracer Date: Wed, 3 Dec 2008 12:49:15 -0800 Message-ID: <20081203124915.2eb9e7cd.akpm@linux-foundation.org> References: <20081203203656.776893226@goodmis.org> <20081203203829.362295724@goodmis.org> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20081203203829.362295724@goodmis.org> Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: containers.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?