From: Roger Pack <rogerpack2005@...>
Date: 2010-04-25T14:43:42+09:00
Subject: Re: Ruby 1.91.376 hangs when launched with python pExpect


> Could you explain me what is a GLI and what does it mean when a thread 
> is "in" and is "not" in  a rb_thread_blocking_region. And why any thread 
> "not"  could block my process ? Actually I see in my threads many 
> threads "in" a rb_thread_blocking_region doing waitpid which I assume 
> for the others thread I launch.

http://www.igvita.com/2008/11/13/concurrency-is-a-myth-in-ruby

might help.

In general if you have one thread that's not within a select, it "might" 
be blocking all threads.  I don't know if that's actually your problem 
here, though.
-rp
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