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    SubjectRe: [V6][PATCH 4/6] x86, nmi: add in logic to handle multiple events and unknown NMIs
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    On Fri, 2011-09-23 at 15:17 -0400, Don Zickus wrote:
    > + /*
    > + * Use 'false' as back-to-back NMIs are dealt with one level up.
    > + * Of course this makes having multiple 'unknown' handlers useless
    > + * as only the first one is ever run (unless it can actually determine
    > + * if it caused the NMI)
    > + */
    > + handled = nmi_handle(NMI_UNKNOWN, regs, false);

    Shouldn't we then also add something like:

    WARN_ON_ONCE(type == NMI_UNKNOWN && !list_empty(&desc->head));

    to __setup_nmi()?




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