[GHC] #5783: Data.Text.isPrefixOf fails to terminate

[GHC]

#5783: Data.Text.isPrefixOf fails to terminate
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    Reporter:  reinerp         |       Owner:                             
        Type:  bug             |      Status:  new                        
    Priority:  highest         |   Milestone:  7.4.1                      
   Component:  Compiler        |     Version:  7.4.1-rc1                  
    Keywords:                  |          Os:  MacOS X                    
Architecture:  x86_64 (amd64)  |     Failure:  Incorrect result at runtime
  Difficulty:  Unknown         |    Testcase:                             
   Blockedby:                  |    Blocking:                             
     Related:                  |  
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Changes (by simonmar):

  * priority:  normal => highest
  * difficulty:  => Unknown
  * milestone:  => 7.4.1


Comment:

 Sounds rather serious, let's look into it.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5783#comment:2>
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