linux-kernel - Re: [PATCH 4/9] ftrace: Add enable/disable ftrace

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Message-ID: <1322511289.17003.24.camel@frodo>
Date:	Mon, 28 Nov 2011 15:14:49 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Jiri Olsa <jolsa@...hat.com>, fweisbec@...il.com, mingo@...hat.com,
	paulus@...ba.org, acme@...stprotocols.net,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/9] ftrace: Add enable/disable ftrace_ops control
 interface

On Mon, 2011-11-28 at 21:05 +0100, Peter Zijlstra wrote:

> Note that this of course precludes ever using jump_labels from do_int3
> handlers ;-)

Hmm, how many do_int3 handlers are there?

Oh, I bet we could trace kprobe handlers, and this would break that.

I'm a bit nervous about adding jump_labels into function tracing
handlers.

-- Steve

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