[lkml]   [2004]   [Jul]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [linux-audio-dev] Re: [announce] [patch] Voluntary Kernel Preemption Patch

    * Andrew Morton <> wrote:

    > > discovered I can reliably produce a large XRUN by toggling Caps Lock,
    > > Scroll Lock, or Num Lock. This is with 2.6.8-rc1-mm1 + voluntary
    > > preempt
    > That's odd. I wonder if the hardware is sick. What is the duration is the
    > underrun? The info you sent didn't include that.

    no, it's the ps2 driver that is sick. The ps2 keyboard driver is one of
    the few places that busy-polls for IRQ completion from within a tasklet
    context for things like led switching (yuck) - this can cause many
    millisecs delays on all boards i tried.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 14:04    [W:0.020 / U:71.820 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site