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RTS crash w/ strange closure type 603975781 on OS X 10.8

On OS X 10.8 (Mountain Lion, the first developer seed), GHC's RTS crashes with strange closure type 603975781, for almost any program compiled with GHC.

As examples, cpphs and cabal's Setup crash, but a simple `main = putStrLn "hello world"' does not.

`runhaskell ...' works. It seems this only manifests in compiled programs.

An example of the output can be found here: https://gist.github.com/1918845

Trac metadata
Trac field Value
Version 7.4.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Runtime System
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture
Edited by dylukes
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