linux-kernel - Re: [PATCH] [RFC][PATCH] Remove /proc/kallsyms size verification check in perf

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Date:	Mon, 11 Jul 2011 16:56:40 -0700
From:	Sonny Rao <sonnyrao@...omium.org>
To:	acme@...hat.com
Cc:	rostedt@...dmis.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Sonny Rao <sonnyrao@...omium.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RFC][PATCH] Remove /proc/kallsyms size verification
 check in perf

>On Mon, Jul 11, 2011 at 3:57 PM, Sonny Rao <sonnyrao@...omium.org> wrote:
> The check was failing when I was trying to profile system startup
> because the modules were being loaded and causing the size of
> kallsyms to change.  At first I changed the check to simply make
> sure the size of kallsyms increased, but that wouldn't cover the
> case of a module getting removed (or some removed and larger ones
> loaded).  I can't see any purpose to checking the size
> right after reading it either, so remove the check altogether.

Ignore this patch; I just realized it is actually copying all of
kallsyms into the
trace output file.  I'll have to do something a bit smarter to fix
this problem --
I'll post a new patch when it's ready (and tested)

Sonny
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