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    SubjectRe: [PATCH] x86: Don't ack_APIC_irq() if lapic is disabled in GENERIC_INTERRUPT_VECTOR handler
    [Cyrill Gorcunov - Sun, Sep 20, 2009 at 10:30:11PM +0400]
    ...
    | | >
    | | > iirc it was Xen related patch. So it's not that simple.
    | | >
    | | > I've pointed out Sheng about disable_apic. I'm not Xen
    | | > specialist but Xen team seem to use specific apic setup
    | | > so our "dummy" operations are not involved (case they
    | | > set disable_apic=1 without "turn off" apic ops in real).
    | | > Something like that.
    | |
    | | They should then set a NOP function in that case. We really dont want to
    | | slow down hotpath functions like smp_generic_interrupt() with flaggery.
    | |
    | | Ingo
    | |
    |
    | Well, I suppose we should wait for Sheng's comments.
    | I wish I would answer you but I simply don't know Xen
    | code :)
    |
    | -- Cyrill

    Wait a bit Ingo, please. It seems I'm having different
    patch series in mind. Need to restore mail thread.
    Will back soon :)

    -- Cyrill


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