On 13.08.2012 19:43, Ryan Newton wrote:
Terrible! Quite sorry that this seems to be a bug in the monad-par library.
I'm copying some of the other monad-par authors and we hopefully can get to the bottom of this. If it's not possible to create a smaller reproducer, is it possible to share the original test that triggers this problem? In the meantime, it's good that you can at least run without parallelism.
Here is slightly simplified original test case. By itself program is very small but there is statistics and criterion on top of the monad-par Failure occurs in the function Statistics.Resampling.Bootstrap.bootstrapBCA. However I couldn't trigger bug with mock data. import Criterion.Main test :: t -> () test _ = () main :: IO () main = defaultMain [ bench (show n) $ nf test () | n <- [0 .. 5000]] P.S. I assume I've just got test failure report for the statistics from your buildbot. Failures reported are spurious. Also linux box cannot handle unicode in the output (wrong locale settings?)