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

[Peter Zijlstra]

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.
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