Re: [PATCH 3/4] perf, x86: check ucode before disabling PEBS on SandyBridge v3

[Andi Kleen]

Peter Zijlstra <peterz@xxxxxxxxxxxxx> writes:
>
> Is there a ucode revision for C2 higher than 0x618 but lower than
> 0x70c ? If so, your code is wrong for it would enable PEBS on that chip.

I was told there's only a single revision per model number that goes up.
That's also the model that other microcode checks in Linux follow.

Not sure what's happening with Stephane's setup.
I get 0x618 on Stepping 6. I'll try to find a C2.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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