[GHC] #2105: garbage collection confusing in ghci for foreign objects

[GHC]

#2105: garbage collection confusing in ghci for foreign objects
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 Reporter:  Frederik                  |          Owner:         
     Type:  run-time performance bug  |         Status:  new    
 Priority:  normal                    |      Milestone:         
Component:  GHCi                      |        Version:  6.8.2  
 Severity:  normal                    |     Resolution:         
 Keywords:                            |     Difficulty:  Unknown
 Testcase:                            |   Architecture:  Unknown
       Os:  Unknown                   |  
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Changes (by simonmar):

  * difficulty:  => Unknown

Comment:

 I think we'll need more information here.  Can you construct a small
 example of a `ForeignPtr` that is freed when you expect it to be retained?

 Since a `ForeignPtr` can only be derferenced in the `IO` monad, is `v` in
 your example an `IO` computation?  Or perhaps you're using
 `unsafePerformIO` to dereference the `ForeignPtr`?

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2105#comment:1>
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