On Fri, 2009-07-17 at 08:51 -0700, Matt Helsley wrote:

> So it's not clear to me how adding PF_FREEZING fixes anything. Am I
> missing something?

Yep, PF_FROZEN is only observed going into schedule(), on the way back
out thaw_process() will already have cleared the flag.

So we don't increment in deactivate_task(), but we do decrement in
activate_task(), yielding for some very unbalanced accounting.

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