linux-kernel - Re: problem with function

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Message-ID: <20090617214303.483fe0a0@chukar>
Date:	Wed, 17 Jun 2009 21:43:03 -0600
From:	Jake Edge <jake@....net>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: problem with function_graph self-test?

On Wed, 17 Jun 2009 23:24:18 -0400 (EDT) Steven Rostedt wrote:

> Jake, when you find a bug, you really find a bug!

heh, glad to be of service :)

> This is something that gcc is screwing with us. After spending all
> day today trying to figure out what is happening, I finally found it
> in the assembly.

is there something specific to my config that causes this to happen?  I
assume other folks are running the function_graph selftest under other,
quite possibly more sane, configs without running into it ... or is it
just something that most folks aren't running (i can't remember why i
turned ftrace selftests on, other than, perhaps, general curiosity) ...

you don't run into this under your "normal" configs?

jake

-- 
Jake Edge - LWN - jake@....net - http://lwn.net
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