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Date:	Mon, 3 Nov 2008 09:14:16 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ftrace: ftrace_dump_on_oops=[tracer]


* Steven Rostedt <rostedt@...dmis.org> wrote:

> 
> On Sat, 1 Nov 2008, Peter Zijlstra wrote:
> 
> > On Sat, 2008-11-01 at 14:43 -0400, Steven Rostedt wrote:
> > > On Sat, 1 Nov 2008, Peter Zijlstra wrote:
> > > 
> > > > seems useful to debug crashes that happen before I read userspace.
> > > 
> > > Hmm, I think it might be better to separate this from the dump_on_oops.
> > > How about a ftrace_default_tracer parameter?
> > > 
> > > If one is defined, it is activated as soon as it is initialized. This way 
> > > we decouple the dump_on_oops, which we may not always want, and a way to 
> > > start tracers before the switch to user space.
> > 
> > Like so?
> 
> Sure.
> 
> > 
> > ---
> > Subject: ftrace: enable setting an ftrace tracer on boot
> > 
> > In order to facilitate early boot trouble, allow one to specify a tracer
> > on the kernel boot line.
> > 
> > Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> 
> Acked-by: Steven Rostedt <srostedt@...hat.com>

applied to tip/tracing/ftrace, thanks guys!

	Ingo
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