[GHC] #713: SMP + FFI = crash...

[GHC]

#713: SMP + FFI = crash...
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    Reporter:  lipeng at cis.upenn.edu  |        Owner:               
        Type:  bug                   |       Status:  new          
    Priority:  normal                |    Milestone:               
   Component:  Compiler              |      Version:  6.5          
    Severity:  blocker               |     Keywords:  smp ffi crash
          Os:  Linux                 |   Difficulty:  Unknown      
Architecture:  x86                   |  
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Source code will be attached.  This is a modified version of bug #705:
 each thread calls a safe C function via FFI.  The normal behavior of the
 program is to loop forever. The program works fine using +RTS -N1, but
 when using +RTS -N2 or more threads on a SMP machine, it crashes
 nondeterministically with all kinds of funny error messages.  I can
 reproduce it on difference linux SMP machines.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/713>
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