linux-kernel - Re: [PATCH 2/4] perf tools: allow user to specify hardware breakpoint bp

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Message-ID: <87mwduepux.fsf@sejong.aot.lge.com>
Date:	Tue, 03 Jun 2014 10:36:22 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jacob Shin <jacob.w.shin@...il.com>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Ingo Molnar <mingo@...nel.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	xiakaixu <xiakaixu@...wei.com>
Subject: Re: [PATCH 2/4] perf tools: allow user to specify hardware breakpoint bp_len

Hi Jiri,

On Fri, 30 May 2014 15:39:06 +0200, Jiri Olsa wrote:
> On Thu, May 29, 2014 at 05:26:51PM +0200, Frederic Weisbecker wrote:
>> From: Jacob Shin <jacob.w.shin@...il.com>
>> 
>> Currently bp_len is given a default value of 4. Allow user to override it:
>> 
>>   $ perf stat -e mem:0x1000/8
>>                             ^
>>                             bp_len
>> 
>> If no value is given, it will default to 4 as it did before.
>
> Namhyung,
> both perf tols patches from this patchset mess up with hists
> tests..  I havent found any connection yet.. any idea? ;-)

So you already found the problem in the hpp->elide change and that's the
reason of the failure, right? :)

Thanks,
Namhyung
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