[GHC] #8124: Possible leaks when using foreign export.

[GHC]

#8124: Possible leaks when using foreign export.
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        Reporter:  augustss                 |            Owner:  simonmar
            Type:  bug                      |           Status:  new
        Priority:  highest                  |        Milestone:  7.8.2
       Component:  Runtime System           |          Version:  7.6.3
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  Runtime performance bug  |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Changes (by simonmar):

 * owner:   => simonmar
 * priority:  normal => highest
 * milestone:   => 7.8.2


Comment:

 Thinking about it a bit more, it ought to be possible to clean these up
 automatically.  The tricky bit is knowing when to do so - too eager and we
 penalize threads that are doing frequent in-calls, too lazy and we have
 the memory leak again.  Perhaps just sweeping the table during a major GC
 would be good enough.  Better might be to only free Tasks that have
 survived one major GC cycle without being used, but that's a bit more
 work.

 I'll look into this when I've got some time.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8124#comment:6>
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