Re: [PATCH] perf, x86: Add workaround for MEM_*_RETIRED errata BV98

[Peter Zijlstra]

On Wed, May 01, 2013 at 09:21:55PM +0200, Stephane Eranian wrote:
> On Wed, May 1, 2013 at 9:13 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> >> Unfortunately, Andi's patch fails to correct the problem though
> >> it is the right approach. As he said, the problem is unfortunately
> >
> > perf stat -a / record -a / top will work.
> >
> But it does not for perf stat -a. Look at my example, run it on your machine.


Since nobody seems interested in explaining the exact nature of the hardware
failure I think the best thing we can do is simply blacklist these events.

Broken hardware is broken after all -- we should jump through too many hoops
pretending its not.
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