[GHC] #9001: unexpected runtime crash

[GHC]

#9001: unexpected runtime crash
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       Reporter:  jwlato            |             Owner:
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:
      Component:  Compiler          |           Version:  7.8.2
       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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 Apologies for the poor summary, I'm not sure how to be more descriptive.
 I don't see anything dodgy here.

 Compiling the attached program `ghc -O -dcore-lint Test.hs` and running it
 results in a runtime crash.  Various incarnations of this code have
 resulted in

     Test: internal error: scavenge_one: strange object 0

     Test: internal error: stg_ap_p_ret

 and core dumps with no further information.

 I've been able to reproduce this with ghc-7.8.2 and ghc-7.6.3.

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