linux-kernel - Re: [GIT PULL] tracing fixes

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Message-ID: <20100215045024.GC19287@elte.hu>
Date:	Mon, 15 Feb 2010 05:50:24 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Masami Hiramatsu <mhiramat@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Fr??d??ric Weisbecker <fweisbec@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL] tracing fixes


* Masami Hiramatsu <mhiramat@...hat.com> wrote:

> Hi Ingo,
> 
> Could you push this commit too?
> 
> 5ecaafdbf44b1ba400b746c60c401d54c7ee0863
> kprobes: Add mcount to the kprobes blacklist
> 
> Since this bug can be easily reproduced with kprobe-tracer.

Ok, i've cherry-picked it into urgent.

I'm wondering, how complete is the kprobes blacklist? You can test it by 
putting a probe on every single function in the system via something like:

  for N in $(cut -d' ' -f3 /proc/kallsyms  | cut -f1); do
    perf probe $N
    perf probe -d $N
  done

(note: I havent tested it myself yet.)

Thanks,

	Ingo
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