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    SubjectRe: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch
    Lee Revell <rlrevell@joe-job.com> wrote:
    >
    > Would this explain these? When running JACK with settings that need
    > sub-millisecond latencies, I get them when I generate any load at all on
    > the system (typing, switching windows, etc). I also get lots of these
    > if I run JACK from an X terminal, but very few if I run it from a text
    > console, even if X is running in the background.
    >
    > Jul 13 14:36:16 mindpipe kernel: ALSA /usr/src/alsa-cvs-1.0.5/alsa-driver/alsa-kernel/core/pcm_lib.c:199: Unexpected hw_pointer value [1] (stream = 0, delta: -25, max jitter = 32): wrong interrupt acknowledge?

    I'm wondering what this message actually means. "Unexpected hw_pointer
    value"?

    Does this actually indicate an underrun, or is the debug code screwy?
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