On Tue, 2006-03-14 at 23:11 +0100, Ingo Molnar wrote:
> > > no. We have to run deadlock detection to avoid things like circular lock
> > > dependencies causing an infinite schedule+wakeup 'storm' during priority
> > > boosting. (like possible with your wakeup based method i think)
> > No, all tasks would just settle on the highest priority and then the
> > wakeups would stop.
>
> you are right, that shouldnt be possible. But how about other, SMP
> artifacts? What if the woken up task runs on another CPU, and the whole
> chain of boosting is thus delayed?
And it does not solve the problem of ad hoc deadlock detection at all.
tglx
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