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    SubjectRe: Serial port latency

    > > > Is the computer otherwise idle?
    > > > I've seen one unexplainable report with atm problems that
    > disappeared
    > > > (!) if a kernel compile was running.
    > >
    > > I've seen similar bugs. If you hook something on schedule_tq and
    > forget
    > > to set current->need_resched, this is exactly what you get.
    > >
    > I'm running with a patch that printk's if cpu_idle() is called while a
    > softirq is pending.
    > If I access the floppy on my K6/200 every track triggers the check, and
    > sometimes the console blanking code triggers it.

    Seems floppy and console is buggy, then.

    > What about creating a special cpu_is_idle() function that the idle
    > functions must call before sleeping?

    I'd say just fix all the bugs.
    The best software in life is free (not shareware)! Pavel
    GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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