Re: [ATTN IBM Guys] NMI count on X440 box

From: William Lee Irwin III
Date: Fri Sep 19 2003 - 21:33:50 EST


On Fri, Sep 19, 2003 at 07:31:03PM -0700, John Wendel wrote:
> I just noticed that our 8-way X440 is showing (in /proc/interrupts)
> about 100 NMIs / second, on each CPU. Would some kind soul please tell
> me if this is OK? A brief explanation of what this interrupt is being
> used for would be appreciated.
> We're running the latest RH Advanced server kernel.
> </curious>
> Sorry if this is a stupid question.

A common use for intentional NMI's is NMI-based profiling, i.e. oprofile.
I can't say for sure this is where your NMI's are coming from without
seeing more about your kernel.


-- wli
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