[GHC] #2186: unsafePerformIO prevents space leak?

[GHC]

#2186: unsafePerformIO prevents space leak?
----------------------+-----------------------------------------------------
 Reporter:  ravi      |          Owner:          
     Type:  bug       |         Status:  new     
 Priority:  normal    |      Milestone:  6.8.3   
Component:  Compiler  |        Version:  6.8.2   
 Severity:  normal    |     Resolution:          
 Keywords:            |     Difficulty:  Unknown 
 Testcase:            |   Architecture:  Multiple
       Os:  Linux     |  
----------------------+-----------------------------------------------------
Changes (by igloo):

  * milestone:  => 6.8.3

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2186#comment:3>
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