From: Michal Suchanek <hramrach@...>
Date: 2008-08-15T20:54:32+09:00
Subject: Re: Threaded IO trouble

On 15/08/2008, Roger Pack <rogerpack2005@gmail.com> wrote:
> > [lots of output snipped]
>  >
>  > deadlock 0x53d4: sleep:F(4)  - testt.rb:14
>  > deadlock 0x31704: sleep:S (main) - testt.rb:27
>  > testt.rb:27:in `write': Thread(0x31704): deadlock (fatal)
>  >         from testt.rb:27:in `puts'
>  >         from testt.rb:27:in `try_analyze'
>  >         from testt.rb:25:in `each'
>  >         from testt.rb:25:in `try_analyze'
>  >         from testt.rb:45
>  >         from testt.rb:44:in `upto'
>  >         from testt.rb:44
>
>
> It's probably a bug in Ruby.  Most recently I've gotten deadlock
>  messages just joining on other threads [which do terminate correctly],
>  which thing is truly bizarre to me.  I don't seem to remember it
>  happening in older patch versions of Ruby.  Tough to isolate.
>

These tests do have the same results in 1.8.1 on OS X.

However, I the script in which I saw the error first used to run on
Linux in older versions of Ruby. Still it might be that the error
occurs less often with older versions, and I think I do at most
hundreds of calls in one script run, not thousands.

Thanks

Michal