[GHC] #8433: forkProcess masks async exceptions inside the child process

[GHC]

#8433: forkProcess masks async exceptions inside the child process
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        Reporter:  joeyh           |            Owner:
            Type:  bug             |           Status:  new
        Priority:  normal          |        Milestone:
       Component:  libraries/unix  |          Version:  7.6.3
      Resolution:                  |         Keywords:
Operating System:  Linux           |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown    |       Difficulty:  Unknown
       Test Case:                  |       Blocked By:
        Blocking:                  |  Related Tickets:
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Comment (by hvr):

 Here's a simple way to reproduce:

 {{{#!hs
 System.Posix.Process.forkProcess $ print =<<
 Control.Exception.getMaskingState
 }}}

 outputs `MaskedInterrupt` with GHC 7.6.3 on Linux

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8433#comment:1>
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