[GHC] #9470: forkProcess breaks in multiple ways with GHC 7.6

[GHC]

#9470: forkProcess breaks in multiple ways with GHC 7.6
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              Reporter:  nh2         |            Owner:  simonmar
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Runtime     |          Version:  7.8.3
  System                             |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:  Linux       |       Difficulty:  Unknown
       Type of failure:  Runtime     |       Blocked By:
  crash                              |  Related Tickets:  #9468
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by nh2):

 As a side note: In unix-2.5.0.0 (GHC 7.2), the haddocks of
 {{{forkProcess}}} say

 "GHC note: forkProcess is not currently supported when using multiple
 processors (+RTS -N), although it is supported with -threaded as long as
 only one processor is being used."

 but as of unix-2.5.1.0 (GHC 7.4) that note is gone.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9470#comment:5>
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