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SubjectRe: [PATCH][GIT PULL][v3.3] x86: Test saved %rip in NMI to determine nested NMI

* Steven Rostedt <rostedt@goodmis.org> wrote:

> On Mon, 2012-02-20 at 09:10 +0100, Ingo Molnar wrote:
> > >
> > > Note, it does not seem to cause any destruction, but screw up
> > > profiling.
> >
> > Except if the source of the NMI was not profiling, right?
>
> Well, what else are NMIs used for? [...]

There's various (legacy) diagnostics NMIs on various x86
platforms, mostly signalling some sort of deep trouble
with the hw.

Thanks,

Ingo


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