Interesting. This is reproducible on my machine (OSX 10.7.5), with an older GHC:

$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 7.6.3

Check out this ticket https://ghc.haskell.org/trac/ghc/ticket/7655 

Alex

On 2014-10-17, at 11:46 AM, Erik Rantapaa wrote:

Running ghci under OSX I am seeing the following behavior:

Prelude> 2^750000
{... lots of digits...}

Prelude> 2^760000
Segmentation Fault: 11

Prelude> 2^770000
Bus Error: 10

and I'm curious why this happens.

More details:

$ ghci --version
The Glorious Glasgow Haskell Compilation System, version 7.8.3

I'm using the 64-bit version of the Haskell Platform (x86_64-darwin-7.8.3).

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