Hi, I believe the right way to fix this is to find all the places in the > compiler that catch and rethrow exceptions inside unsafePerformIO, and make > them use throwTo when the exception is asynchronous.
Ok, I have looked at this in detail and I'm not sure how feasible this is. I have filed a bug, with a test case, and a detailed explanation of my investigation so far: http://hackage.haskell.org/trac/ghc/ticket/8006. Edsko
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