[GHC] #8834: 64-bit windows cabal.exe segfaults in GC

[GHC]

#8834: 64-bit windows cabal.exe segfaults in GC
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        Reporter:  awson          |            Owner:  jstolarek
            Type:  bug            |           Status:  new
        Priority:  highest        |        Milestone:  7.8.1
       Component:  Compiler       |          Version:  7.8.1-rc2
      Resolution:                 |         Keywords:
Operating System:  Windows        |     Architecture:  x86_64 (amd64)
 Type of failure:  Runtime crash  |       Difficulty:  Unknown
       Test Case:                 |       Blocked By:
        Blocking:                 |  Related Tickets:
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Changes (by simonmar):

 * priority:  high => highest
 * milestone:  7.8.2 => 7.8.1


Comment:

 Patch attached.  I'll validate it, but I only have one Windows laptop and
 I'm using it for work, so this might take a while.  If someone else can
 validate more quickly, please go ahead.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8834#comment:70>
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