RE: [RFC/Requirements/Design] h/w error reporting

From: Peter Zijlstra
Date: Wed Nov 10 2010 - 13:32:21 EST


On Wed, 2010-11-10 at 10:23 -0800, Luck, Tony wrote:
> > A few of things that pop up quickly are:
> >
> > 1) lockless
>
> This is a clear requirement for use in h/w error
> reporting too. Taking locks in NMI or machine
> check handler isn't an option.

Don't worry, lots of PMIs are NMIs, perf needs to be fully NMI safe
otherwise things simply don't work.
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