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

[Pavel Machek]

On Fri 2007-07-06 09:07:38, Miklos Szeredi wrote:
> > > Actually fuse allows SIGKILL, because it's always fatal, and the
> > > syscall may not be restarted.
> > 
> > Okay, and you should handle refrigerator in the same paths where you
> > handle SIGKILL. Just add try_to_freeze() there...
> 
> It's the fourth time I'm repeating this in this thread:
> 
> Yes adding try_to_freeze() there would partially solve the probelem.
> 
> But another task can be sleeping on a mutex held by the task waiting
> for the reply.  And the freezer won't be able to handle that one.
> 
> Generally, calling try_to_freeze() with mutexes held is not a good
> idea.

Agreed, calling try_to_freeze() with mutex held is no-no, and it is
even documented somewhere.
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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