Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM pathway

[Pavel Machek]

Hi!

> > How will that help?  Block the kernel thread in the freezer or block it 
> > in the driver -- either way it is blocked.  So how do your deadlocks 
> > get resolved?
> 
> Because nobody is waiting on that kernel thread anyway without a freezer
> so there is no deadlock anymore.

In the deadlock we are seeing, _someone_ is waiting on userspace
thread, that leads to deadlock with freezer. We don't know who,
because we have not seen the sysrq-t dumps.

The "unknown who" will deadlock on fused frozen by driver, too. We
really need to fix the "unknown who" here.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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