[GHC] #840: GHC on "loosing" its handles takes 100% CPU

[GHC]

#840: GHC on "loosing" its handles takes 100% CPU
----------------------+-----------------------------------------------------
 Reporter:  guest     |          Owner:  igloo  
     Type:  bug       |         Status:  new    
 Priority:  normal    |      Milestone:  6.8    
Component:  Compiler  |        Version:  6.4.2  
 Severity:  normal    |     Resolution:         
 Keywords:            |     Difficulty:  Unknown
 Testcase:  N/A       |   Architecture:  x86    
       Os:  Windows   |  
----------------------+-----------------------------------------------------
Changes (by igloo):

  * testcase:  => N/A

Comment:

 This is reproducible for me with wobth GHC 6.4.2 and 6.6 under cygwin,
 running
 `ghc q.hs -o q` and then `./q`.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/840>
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