ghc-6.8.1, +RTS -N2

Simon Marlow simonmarhaskell at
Tue Nov 13 05:51:35 EST 2007

Bulat Ziganshin wrote:
> Hello Johannes,
> Tuesday, November 13, 2007, 12:08:20 PM, you wrote:
>>> i suggest you to test it on one-threaded CPU too
>> I just did. The behaviour is identical
>> (works with -N1, segfaults with -N2)
>> Any ideas? - Best regards, J.W.
> no. just publish this into maillist, it's important to identify the
> problem
> well, in my practice the only way to make GHC crash (except for
> errors in GHC itself) is to use unsafePerformIO, in particular for
> creation global variables

Yes, it could be a real bug.  Can you reduce the example as much as 
possible and submit a bug report?


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