Re: [Xen-devel] [PATCH] x86/nmi: Make external NMI injection reliably crash the host

[Don Slutz <dslutz@xxxxxxxxxxx>]

On 08/26/14 06:10, Ross Lagerwall wrote:
> Change the watchdog handler to only "tick" if the corresponding perf
> counter has overflowed; otherwise, return false from the NMI handler to
> indicate that the NMI is not a watchdog tick and let the other handlers
> handle it.  This allows externally injected NMIs to reliably crash the
> host rather than be swallowed by the watchdog handler.
If a crash kernel has been setup via kexec, does this change to
"crash host" ends up jumping into the crash kernel?

    -Don Slutz


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