[GHC] #8209: Race condition in setNumCapabilities

[GHC]

#8209: Race condition in setNumCapabilities
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        Reporter:  akio              |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Runtime System    |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  x86_64 (amd64)
 Type of failure:  Runtime crash     |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by akio):

 Replying to [comment:2 ezyang]:
 > I haven't run the program, but are you sure (5) happens?
 On second thought I'm not so sure. I'll look at this again later today.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8209#comment:3>
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