linux-kernel - Re: [RFC PATCH 4/9] perf: Don't record frame pointer based user stacktraces if we dump stack and regs

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Date:	Wed, 13 Oct 2010 09:23:06 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Robert Richter <robert.richter@....com>
Subject: Re: [RFC PATCH 4/9] perf: Don't record frame pointer based user
 stacktraces if we dump stack and regs

On Wed, 2010-10-13 at 07:06 +0200, Frederic Weisbecker wrote:
> User and kernel stack might be selected for other uses than callchain
> in the future, this probably shouldn't mess with the regular callchain
> code. Instead we should probably have an exclude_callchain_user
> attribute, that could be also useful to filter out user callchains
> when people don't want them. 

Probably ;-)
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