Re: NMI handling rework for x86

From: Zwane Mwaikambo (
Date: Thu Nov 14 2002 - 23:40:04 EST

On Thu, 14 Nov 2002, Corey Minyard wrote:

> John Levon suggested I send this to you. It's a cleanup of the NMI
> handling to make it into a request/release mechanism (instead of
> hard-coding everything into traps.c). It renames "nmi.c" to
> "nmi_watchdog.c" (as it should be named) and moves the real NMI handling
> code from traps.c to nmi.c. It's been posted and reworked on lkml, and
> it seems to have finally met approval. The "cc-ed" people have reviewed
> the patch (or at least made helpful suggestions :-).

What interrupt rate have you tested this at? SMP? Adding handlers at
runtime? I'm still skeptical on how RCU protects you, but i'm RCU clueless...



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