linux-kernel - Re: Segfault in perf tool

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Message-ID: <CABPqkBTS57_KeEVw76M0_XmZONFvRZX9a9jOeddjTGJKTwbkNw@mail.gmail.com>
Date:	Wed, 26 Dec 2012 18:38:58 +0100
From:	Stephane Eranian <eranian@...gle.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Stefan Beller <stefanbeller@...glemail.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Paul Mackerras (supporter:PERFORMANCE EVENT...)" <paulus@...ba.org>,
	"Ingo Molnar (supporter:PERFORMANCE EVENT...,commit_signer:2/9=22%)" 
	<mingo@...hat.com>,
	"Arnaldo Carvalho de Melo (supporter:PERFORMANCE EVENT... 
	,commit_signer:7/9=78%)" <acme@...stprotocols.net>,
	"Anton Blanchard (commit_signer:1/9=11%)" <anton@...ba.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: Segfault in perf tool

On Wed, Dec 26, 2012 at 6:10 AM, Namhyung Kim <namhyung@...nel.org> wrote:
> Hi Stefan,
>
> On Sun, 23 Dec 2012 22:18:32 +0100, Stefan Beller wrote:
>> Hi,
>>
>> I get segmentation faults when running one of these commands:
>> perf report -g --sort symbol_to
>> perf report -g --sort symbol_from
>> perf report -g --sort dso_from
>> perf report -g --sort dso_to
>
> Those sort keys are only applicable for branch filtered perf.data file
> (i.e. recorded with -j or -b option) and should not be used for others.

That's true. Should print an error and not segfault.

> I'll work on the fix soon.
>
Thanks.
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