[GHC] #9001: unexpected runtime crash

[GHC]

#9001: unexpected runtime crash
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        Reporter:  jwlato            |            Owner:  simonmar
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Runtime System    |          Version:  7.8.2
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  Runtime crash     |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by rwbarton):

 It looks like the stack overflows in a long sequence of `stg_ap_*`
 function calls and the overflow isn't detected until a point at which `Sp`
 is not only less than `SpLim` but even less than the start of the stack
 segment, whereupon bad things happen.

 Isn't it bad that these `stg_ap_*_fast` functions push things onto the
 stack without checking for overflow?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9001#comment:3>
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