Date: Mon, 31 Aug 2015 13:19:40 +0200
From: Jiri Olsa <jolsa@redhat.com>
To: Kan Liang <kan.liang@intel.com>
Cc: acme@kernel.org, jolsa@kernel.org, a.p.zijlstra@chello.nl, luto@kernel.org,
        mingo@redhat.com, eranian@google.com, ak@linux.intel.com,
        mark.rutland@arm.com, adrian.hunter@intel.com, namhyung@kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH V7 6/8] perf,tools: Dump per-sample freq/CPU%/CORE_BUSY%
 in report -D
Message-ID: <20150831111940.GI22039@krava.brq.redhat.com>
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 <1440755289-30939-7-git-send-email-kan.liang@intel.com>
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On Fri, Aug 28, 2015 at 05:48:07AM -0400, Kan Liang wrote:

SNIP

>  
>  static struct machine *machines__find_for_cpumode(struct machines *machines,
> @@ -1079,11 +1101,12 @@ static int machines__deliver_event(struct machines *machines,
>  
>  	switch (event->header.type) {
>  	case PERF_RECORD_SAMPLE:
> -		dump_sample(evsel, event, sample);
>  		if (evsel == NULL) {
>  			++evlist->stats.nr_unknown_id;
>  			return 0;
>  		}
> +		dump_sample(evsel, event, sample);
> +

could you submit this hunk separately.. seems like we could
segfault in dump_sample if there's evsel == NULL, right?

jirka

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