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    SubjectRe: invalidate caches before going into suspend
    Ingo Molnar wrote:
    >
    > also, we might be safer if the wbinvd(), the CLI and the halt was in a
    > single assembly sequence:
    >
    > if (cpu >= i486)
    > asm ("cli; wbinvd; cli; 1: hlt; jmp 1b")
    > else
    > asm ("cli; 1: hlt; jmp 1b")
    >
    > to make sure the compiler doesnt ever insert something into this
    > codepath? [ And note the double cli which would be further
    > robustification - in theory we could get a spurious interrupt straight
    > after the wbinvd. ] Hm?
    >

    Spurious interrupt of what kind? The only things that could come in
    would not be non-INT type interrupts, and those aren't affected by CLI.

    -hpa


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