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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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