Re: [PATCH][GIT PULL][v3.3] x86: Test saved %rip in NMI to determinenested NMI

[Ingo Molnar]

* Steven Rostedt <rostedt@xxxxxxxxxxx> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/