[GHC] #7934: usleep hangs, no threads

[GHC]

#7934: usleep hangs, no threads
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Reporter:  gelisam                      |          Owner:                
    Type:  bug                          |         Status:  new           
Priority:  normal                       |      Component:  Runtime System
 Version:  7.4.2                        |       Keywords:                
      Os:  MacOS X                      |   Architecture:  x86_64 (amd64)
 Failure:  Incorrect result at runtime  |      Blockedby:                
Blocking:                               |        Related:  1156          
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Comment(by gelisam):

 Proper formatting of the code snippet:

  {{{
 import System.Posix.Unistd
 main = flip mapM_ [0..] $ \i -> do
   usleep 100000
   print i
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7934#comment:1>
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