[GHC] #1898: segfault with +RTS -N2 (related to tryTakeMVar?)

[GHC]

#1898: segfault with +RTS -N2 (related to tryTakeMVar?)
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    Reporter:  j.waldmann  |        Owner:       
        Type:  bug         |       Status:  new  
    Priority:  normal      |    Milestone:       
   Component:  Compiler    |      Version:  6.8.1
    Severity:  normal      |   Resolution:       
    Keywords:              |     Testcase:       
Architecture:  x86         |           Os:  Linux
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Comment (by j.waldmann):

 The program is *not* crashing with +RTS -N1

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1898#comment:1>
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