Test suite hangs during shrinking?

[saurabhnanda]

Are there any known cases where property tests written in the following structure would hang during shrinking:

property $ do
  x1 <- forAll $ ...
  x2 <- forAll $ ...
  test $ do
    res <- liftIO $ someAction x1 x2
    res === value

My test suite hangs quite often during the shrinking phase and I'm trying to get to the bottom of it, but haven't been able to come-up with a minimal example to reproduce this.

[ocharles]

We're almost certainly going to have to have more to go on than that. Are you certain it's actually shrinking, and not just constantly rerunning your test but not failing?