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    SubjectRe: Buggy IPI and MTRR code on low memory

    On Wed, 28 Jan 2009, Peter Zijlstra wrote:

    > On Wed, 2009-01-28 at 11:38 -0500, Steven Rostedt wrote:
    > > The problem is that if we use the stack, then we must wait for the
    > > function to finish. But in the mtrr code, the called functions are waiting
    > > for the caller to do something after the smp_call_function. Thus we
    > > deadlock!
    > You'd have to 'fix' the regular fallback paths to use your scheme as
    > well.

    Not sure what you mean by that. I booted just fine with the patch, and
    forcing data to NULL. Although, I'm not saying that these should not be

    -- Steve

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