Re: [PATCH 2/5] perf, x86, uncore: Add Haswell-EP uncore support

From: Patrick Lu
Date: Wed Oct 29 2014 - 11:06:49 EST


On Wed, Oct 29, 2014 at 04:11:15AM +0100, Andi Kleen wrote:
> >
> > yes. removing line 'hswep_uncore_sbox' also worked as workaround.
> > You have an idea what's going on?
>
> Not yet. I don't see it on my own systems, so it's something that's
> different on yours.
Hi Andi, I am experiencing the same crash using E5-2658v3 CPU in our lab in Chandler. I can
provide remote access for you to take a look.

Also, I used your ucevents.py to check out IRP counter, and it looks like
it's reporting half of what I'm expecting. Do you know if the script/PMU
program for both IRP0 and IRP1?

Patrick
>
> > I suspect other folks will see the same crash when E5 v3
> > become more widespread.
>
> I guess we can disable the sbox for now.
>
> -Andi
> >
>
> --
> ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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