linux-kernel - Re: [PATCH] tools lib traceevent: Handle dynamic array's element size properly

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Date:	Fri, 25 Jan 2013 08:53:30 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Jiri Olsa <jolsa@...hat.com>, Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] tools lib traceevent: Handle dynamic array's element
 size properly


* Arnaldo Carvalho de Melo <acme@...hat.com> wrote:

> Em Tue, Jan 22, 2013 at 02:16:47PM +0100, Jiri Olsa escreveu:
> > On Mon, Jan 21, 2013 at 11:45:42PM -0500, Steven Rostedt wrote:
> > > This is only used in this function (the field_dynamic_elem_size() is
> > > only called here). Can we not add the field->type_dyn, and just use a
> > > local variable here. You just need to make sure you free it correctly.
> > 
> > ook, will send v2
> 
> Waiting for this fix, just got 'perf test' crashing on it again :-)
> 
> Till then I implemented 'perf test --skip':

Hm, I think perf test should fork() a testing thread and be 
robust against a child catching a SIGSEGV?

That would also protect against a test corrupting perf test 
itself.

Thanks,

	Ingo
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