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Date: Tue, 29 Apr 2014 15:21:48 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Vince Weaver <vincent.weaver@maine.edu>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [perf] more perf_fuzzer memory corruption
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On Tue, 29 Apr 2014 14:11:09 -0400 (EDT)
Vince Weaver <vincent.weaver@maine.edu> wrote:
 
> I've actually given up on source code inspection to figure out what's 
> going on in kernel/events/core.c.  What I do now is write simple test
> cases and do an ftrace function trace.  The results are often surprising.

You might want to remove this from the kernel/events/Makefile:


ifdef CONFIG_FUNCTION_TRACER
CFLAGS_REMOVE_core.o = -pg
endif

It will let you function trace more of what is happening.

-- Steve