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Date:	Fri, 25 Jul 2014 09:32:18 -0600
From:	David Ahern <>
To:	Arnaldo Carvalho de Melo <>,
	Adrian Hunter <>
CC:	Peter Zijlstra <>,,
	Frederic Weisbecker <>,
	Jiri Olsa <>,
	Namhyung Kim <>,
	Paul Mackerras <>,
	Stephane Eranian <>
Subject: Re: [PATCH 28/52] perf script: Allow callchains if any event samples

On 7/25/14, 7:27 AM, Arnaldo Carvalho de Melo wrote:
> Em Tue, Jul 22, 2014 at 04:17:37PM +0300, Adrian Hunter escreveu:
>> perf script was not displaying callchains if any selected
>> event did not have PERF_SAMPLE_CALLCHAIN.  Change this to
>> disable callchains only if all selected events do not have
> I wonder if some other tool gets this wrong as well, report maybe?

perf only handles 1 sample_type so if callchains are enabled for 1 event 
they are enabled for all.

Perhaps Adrian's patch set changes that -- prior patch sets attempted 
to. I have not had time to go through the list.


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