[GHC] #8435: Do not copy stack after stack overflow

[GHC]

#8435: Do not copy stack after stack overflow
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        Reporter:  ezyang                   |            Owner:  simonmar
            Type:  bug                      |           Status:  new
        Priority:  normal                   |        Milestone:
       Component:  Runtime System           |          Version:  7.7
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  Runtime performance bug  |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by simonmar):

 Sounds reasonable to me.  If it validates, go ahead and push.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8435#comment:1>
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