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    SubjectRe: [patch 1/2] x86_64 page fault NMI-safe
    * Frederic Weisbecker (fweisbec@gmail.com) wrote:
    > On Wed, Jul 14, 2010 at 12:54:19PM -0700, Linus Torvalds wrote:
    > > On Wed, Jul 14, 2010 at 12:36 PM, Frederic Weisbecker
    > > <fweisbec@gmail.com> wrote:
    > > >
    > > > There is also the fact we need to handle the lost NMI, by defering its
    > > > treatment or so. That adds even more complexity.
    > >
    > > I don't think your read my proposal very deeply. It already handles
    > > them by taking a fault on the iret of the first one (that's why we
    > > point to the stack frame - so that we can corrupt it and force a
    > > fault).
    >
    >
    > Ah right, I missed this part.

    Hrm, Frederic, I hate to ask that but.. what are you doing with those percpu 8k
    data structures exactly ? :)

    Mathieu


    --
    Mathieu Desnoyers
    Operating System Efficiency R&D Consultant
    EfficiOS Inc.
    http://www.efficios.com


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