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[Xen-devel] Re: nmi cache weirdness???

Mukesh Rathor <mukesh.rathor <at> oracle.com> writes:

> However, in do_nmi(), nmi_callback still points to dummy (receiving cpus).
> What'sinteresting is, if I put two print lines back to back with nothing
> in between right at the beginning, then the first prints dummy but the
> second prints kdb_nmi_receive. I'm at a complete loss. Does NMI change
> cache protocol? I've been looking thru Intel/AMD manuals, but nothing....

I should clarify I made nmi_callback volatile before adding prints. 
Moreover, I also put wbinvd() after set_nmi_callback, still same behaviour.


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