[GHC] #10414: Buggy behavior with threaded runtime (-N1 working, -N2 getting into <<loop>>)

[GHC]

#10414: Buggy behavior with threaded runtime (-N1 working, -N2 getting into
<<loop>>)
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        Reporter:  exio4             |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by simonpj):

 I'd love it to be fixed in 7.10.2, but first someone needs to volunteer to
 look into what is wrong, and hopefully find out how to fix it. Is it a bug
 in a library?  In the RTS?  In the compiler?

 Help needed!

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10414#comment:7>
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