Re: [patch, -rc5-mm1] lock validator: disable NMI watchdog if CONFIG_LOCKDEP, i386

From: Andi Kleen
Date: Tue May 30 2006 - 15:14:13 EST


Ingo Molnar <mingo@xxxxxxx> writes:
>
> The NMI watchdog uses spinlocks (notifier chains, etc.),
> so it's not lockdep-safe at the moment.

That's totally unsafe even without lockdep and should be fixed
instead. I guess someone bungled the notifier chain conversion.
The NMI notifiers need to be lockless.

-Andi
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