Re: 2.6.17-mm5: lockdep prevents suspend to disk

[Pavel Machek]

Hi!

> > > Jul  4 21:48:08 tycho kernel:   rt-test-4
> > > Jul  4 21:48:08 tycho kernel:   rt-test-5
> > > Jul  4 21:48:08 tycho kernel:   rt-test-6
> > > Jul  4 21:48:08 tycho kernel:   rt-test-7
> > 
> > Are rt-test-X tasks kernel threads or userspace programs? (Kernel
> > threads need explicit try_to_freeze in them to allow suspend).
> > 
> > Are they normally killable?
> 
> hm, that's not lockdep but due to CONFIG_RT_MUTEX_TESTER.

I'm pretty sure RT_MUTEX_TESTER is the problem, then. It should either
end its threads when testing is no longer needed, or maybe add
try_to_freeze() somewhere inside so that those threads can be frozen.

(BTW.. some mail from me to you may be severely delayed because of
graylist. I send some mail from zaurus over bt over gprs, and
300second is quite a long time for that...)
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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