Simon Marlow writes:
test1 :: IO () test1 = do (_,_,_, pid) <- runInteractiveProcess "/usr/bin/sleep" ["3"] Nothing Nothing sleep 1 rc <- waitForProcess pid print rc
I can't repeat this, it works here: *Main> test1 ExitSuccess *Main> test2 Just ExitSuccess
Maybe run it through strace and send us the output?
I cannot reproduce the error myself anymore! I have no idea what has changed; suddenly 'test1' and 'test2' both work reliably -- whether I catch sigCHLD or not. It used to work only when I did catch the signal. This is really bizarre. The moment I see some strange behavior from these functions again, I'll strace it right away and will come back to the topic. Let's hope it never happens. Thanks for the support everybody! Peter