Re: [PATCH RFC] NMI Re-introduce un[set]_nmi_callback

[Andi Kleen]

> Add "kdump" to the list. It will also be broken if we decide to let one
> driver hijack the NMI handler.

kdump is a special case, similar to the NMI button panic mode. It should 
be always only active when the user configured it. When the user configured
it should be always the fallback and override any other drivers.

But watchdog is a special case. I assume the watchdog will just log
(and do the work that a SMI should be doing) but then continue 
the chain so that kdump can dump on a watchdog timeout.

-Andi
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