[GHC] #4934: threadWaitRead works incorrectly on nonthreaded RTS

[GHC]

#4934: threadWaitRead works incorrectly on nonthreaded RTS
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    Reporter:  slyfox          |        Owner:  simonmar                   
        Type:  bug             |       Status:  new                        
    Priority:  high            |    Milestone:  7.0.3                      
   Component:  Runtime System  |      Version:  7.0.1                      
    Keywords:                  |     Testcase:                             
   Blockedby:                  |   Difficulty:                             
          Os:  Linux           |     Blocking:                             
Architecture:  x86_64 (amd64)  |      Failure:  Incorrect result at runtime
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Comment(by simonmar):

 I've tried this program on a couple of different machines (32 and 64-bit
 Linux) with several versions of GHC, and haven't managed to reproduce the
 error.  Does it fail right away for you?

 Can you tell me more about your setup?  (exact versions of tools etc.)
 Does it fail on a different machine for you?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4934#comment:4>
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