[GHC] #770: Huge array leads to various crashes

#770: Huge array leads to various crashes
-----------------------------+----------------------------------------------
  Reporter:  dons            |          Owner:          
      Type:  bug             |         Status:  new     
  Priority:  normal          |      Milestone:          
 Component:  Runtime System  |        Version:  6.5     
  Severity:  normal          |       Keywords:          
Difficulty:  Unknown         |   Architecture:  Multiple
        Os:  Multiple        |  
-----------------------------+----------------------------------------------
First spotted over irc (!):

  20:32  dons:: > array (minBound,maxBound) (zip [0..] (repeat ())) ::
 Array Int ()
  20:32  lambdabot:: internal error: evacuate: strange closure type 37792
  20:32  lambdabot::   Please report this as a bug to glasgow-haskell-
 bugs@xxxxxxxxxxx,
  20:32  lambdabot::   or http://www.sourceforge.net/projects/ghc/

 The following program:

  import Data.Array
  main = print (array (minBound,maxBound) (zip [0..] (repeat ())) :: Array
 Int ())

 leads to a variety of different crashes in 6.4.1, 6.4.2 and the head. I'm
 fairly sure
 this was reported once before, but it seems to have crept back in.

 With 6.4.2/OpenBSD/x86:
  $ ./a.out
  a.out: internal error: stg_ap_ppp_ret
  Please report this as a compiler bug.  See:
  http://www.haskell.org/ghc/reportabug

 With 6.4.2/Linux/amd64/ghci:
  Data.Array> array (minBound,maxBound) (zip [0..] (repeat ())) :: Array
 Int ()
  array Segmentation fault

 With 6.5:
  $ ./a.out
  zsh: segmentation fault (core dumped)  ./a.out

 -- Don

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/770>
GHC <http://www.haskell.org/ghc/>
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