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SubjectRe: [uPATCH] SMP scheduling fix (?)
Hi,

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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