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    SubjectRe: [patch] preempt-timing-on-2.6.8-rc2-O2
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    On Sat, 2004-08-07 at 22:33, William Lee Irwin III wrote:
    > On Sat, Aug 07, 2004 at 10:31:06PM -0400, Lee Revell wrote:
    > > [<c010019f>] 0xc010019f
    > > This has to be a false positive, because if there were really ~1ms
    > > non-preemptible critical sections all over the place I would be getting
    > > xruns.
    >
    > This seems to be 996us spent in do_IRQ() when it interrupts idle tasks.
    >

    I am not sure I understand how preemption can be disabled for 996us and
    not cause an xrun.

    Lee

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