Re: [PATCH 07/12] perf_events: add LBR software filter support forIntel X86

[Masami Hiramatsu]

(2011/10/07 20:21), Peter Zijlstra wrote:
> On Fri, 2011-10-07 at 13:18 +0200, Peter Zijlstra wrote:
>>> Yeah, depending on the depth of the LBR. But then what happens, you
>>> decode an instruction that is not what was executed. 
>>
>> Right, and Andi's concern is that this might cause our instruction
>> decoder to blow up, or worse. 
> 
> That is, we have a fair confidence that its capable of correctly
> decoding correct streams, but I understood from Masami that they haven't
> actually tried feeding it crap.

OK, I'll do hardening it.

Thanks,

-- 
Masami HIRAMATSU
Software Platform Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@xxxxxxxxxxx
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