[Haskell-cafe] Debugging a test suite freeze

Doug Burke dburke.gw at gmail.com
Thu Dec 1 03:36:06 UTC 2022

I had a test suite loop indefinitely with ghc 9.4.3 - see
https://gitlab.haskell.org/ghc/ghc/-/issues/22416 - but to be honest I
don't really understand what the code did that lead to the problem, so
dont know how relevant it is for you.


On Wed, Nov 30, 2022 at 5:46 PM David Feuer <david.feuer at gmail.com> wrote:
> In particular, I think tasty does some tricky concurrency. Have there been changes in that recently, either in GHC itself or in async, that might be responsible?
> On Wed, Nov 30, 2022, 5:33 PM David Feuer <david.feuer at gmail.com> wrote:
>> The logict-sequence test suite consistently freezes up on the last
>> test when compiled with GHC 9.4.3. logict-sequence and its test suite
>> don't do anything special with that GHC/base version as far as I can
>> see, or anything particularly strange in general, so I'm pretty
>> confident the problem lies elsewhere. My best guesses are hedgehog,
>> tasty, and tasty-hedgehog. Has anyone else run into weird issues with
>> any/all of these on GHC 9.4.3?
>> David
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