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From: Steven Rostedt <rostedt@goodmis.org>
To: Ezequiel Garcia <elezegarcia@gmail.com>
Cc: linux-kernel@vger.kernel.org, Pekka Enberg <penberg@kernel.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Ingo Molnar <mingo@redhat.com>,
	tim.bird@am.sony.com, lizefan@huawei.com
Subject: Re: [RFC PATCH v2] trace: Move trace event enable from fs_initcall to early_initcall
Date: Wed, 05 Sep 2012 22:46:17 -0400	[thread overview]
Message-ID: <1346899577.1680.11.camel@gandalf.local.home> (raw)
In-Reply-To: <1346867590.27919.60.camel@gandalf.local.home>

On Wed, 2012-09-05 at 13:53 -0400, Steven Rostedt wrote:
> On Tue, 2012-09-04 at 22:18 -0300, Ezequiel Garcia wrote:
> > Hi Steven,
> > 
> > On 8/17/12, Steven Rostedt <rostedt@goodmis.org> wrote:
> > > On Fri, 2012-08-17 at 09:03 -0300, Ezequiel Garcia wrote:
> > >> This patch splits trace event initialization in two stages:
> > >>  * ftrace enable
> > >>  * sysfs event entry creation
> > >>
> > >> This allows to capture trace events from an earlier point
> > >> by using 'trace_event' kernel parameter and is important
> > >> to trace boot-up allocations.
> > >>
> > >
> > > This is much better, I'll give it some tests and add it to my 3.7 queue.
> > >
> > 
> > Ping? Will you add this to your tree?
> 
> Yeah, I haven't been able to test it yet. I've been stuck trying to
> figure out bugs on other patches I have queued. I'll let you know when I
> do apply it though.

Just tested it and it failed :-/

Enable CONFIG_FTRACE_SELFTEST and CONFIG_FTRACE_STARTUP_TEST, along with
events and syscall events. The syscall event self test fails with this
patch applied.

-- Steve



  reply	other threads:[~2012-09-06  2:46 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-17 12:03 [RFC PATCH v2] trace: Move trace event enable from fs_initcall to early_initcall Ezequiel Garcia
2012-08-17 15:28 ` Steven Rostedt
2012-08-17 16:56   ` Ezequiel Garcia
2012-09-05  1:18   ` Ezequiel Garcia
2012-09-05 17:53     ` Steven Rostedt
2012-09-06  2:46       ` Steven Rostedt [this message]
2012-09-07 16:36         ` Ezequiel Garcia

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