[GHC] #4927: pattern match failure if compiled with -threaded

[GHC]

#4927: pattern match failure if compiled with -threaded
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    Reporter:  helgikrs  |       Owner:                
        Type:  bug       |      Status:  new           
    Priority:  normal    |   Component:  libraries/base
     Version:  7.0.1     |    Keywords:                
    Testcase:            |   Blockedby:                
          Os:  Linux     |    Blocking:                
Architecture:  x86       |     Failure:  Runtime crash 
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Changes (by tibbe):

 * cc: johan.tibell@… (added)


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4927#comment:1>
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