#229: Integer overflow in array allocation -------------------------------------+------------------------------------- Reporter: josefs | Owner: rwbarton Type: bug | Status: new Priority: high | Milestone: 8.0.1 Component: Core Libraries | Version: 7.9 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * cc: ekmett (added) Old description:

When asked to create a sufficiently large array ghci coredumps.

{{{ \begin{code} import Data.Array.ST import Control.Monad.ST import GHC.Base

example = runST (do arr <- newArray (minInt,maxInt) False go arr) where go :: STArray s Int Bool -> ST s Bool go arr = readArray arr 3 \end{code} }}}

Load this into ghci and type 'example'.

New description: When asked to create a sufficiently large array ghci coredumps. {{{#!hs import Data.Array.ST import Control.Monad.ST import GHC.Base example = runST (do arr <- newArray (minInt,maxInt) False go arr) where go :: STArray s Int Bool -> ST s Bool go arr = readArray arr 3 }}} Load this into ghci and type 'example'. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/229#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler