[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:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.10.2
       Component:  Runtime System    |                 Version:  7.7
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  Phab:D938
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Changes (by archblob):

 * differential:   => Phab:D938


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8435#comment:5>
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