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    SubjectRe: [RFC/PATCH, 2/4] readX_check() performance evaluation


    On Wed, 28 Jan 2004, Andi Kleen wrote:
    >
    > On Wed, 28 Jan 2004 11:33:33 -0800 (PST)
    > Linus Torvalds <torvalds@osdl.org> wrote:
    >
    > > For example, if checking for an error involves actually reading a value
    > > from a bridge register, then that implies some _serious_ amount of
    > > serialization and external CPU stuff.
    >
    > Which is _extremly_ hard to do from an MCE handler ...

    So don't do it in the MCE handler.

    Just set a flag aka "may need checking", and let the check be done by the
    actual "read_pcix_error()" code.

    Linus
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