In article <m102hDR-0007U1C@the-village.bc.nu>, alan@lxorguk.ukuu.org.uk
(Alan Cox) writes:
>> > Is there solution to this?
>>
>> The easiest way is just to do normal time-sharing scheduling on all
>> processes in D state. Are there any critical locks which we wait for in
>> interruptible-sleep state?
> In terms of forward progress there are - as well as all the deeper
> memory waits.
> Instead of "in D state" how about "in kernel wait" ?
D'oh. Sleeping processes are irrelevant, of course. :-O
The sched-idle scheduler must never stall a kernel-mode runnable process
indefinitely. As long as it only stalls preempted user-mode processes,
all is well.
--Stephen
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