On Fri, 15 Jan 1999 13:12:04 +0100, Pavel Machek <pavel@bug.ucw.cz>
said:
> But it is currently impossible with linux: it opens DoS attack.
> make your nice 20 task hold some lock, and then run 'normal' task so
> that nice 20 task will never ever get cpu again. BOom, you are holding
> lock and are not going to release it.
> 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?
--Stephen
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