Module that causes GHC-7.8 to exhaust memory when -O2 is on

Mateusz Kowalczyk fuuzetsu at
Sat Mar 29 19:23:23 UTC 2014

On 29/03/14 17:31, David Fox wrote:
> The repository at contains a package that
> causes GHC-7.8.1 (rc2?) to exhaust 16GB of RAM and die when the -O2 flag is
> turned on.  I haven't been able to simplify it very much, almost any change
> to JSON.Render causes it to start working properly.  I did get it to fail
> using only packages available in hackage.  Just thought I should let folks
> know about this issue.  Let me know if it fails to fail.
> Maybe someone who can log in could put this in trac.
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> Glasgow-haskell-users at

You can log in to Trac with username ‘guest’ and password ‘guest’ I believe.

Mateusz K.

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