Re: operations with handles hang

On Tue, May 24, 2011 at 10:36 PM, Brandon Allbery wrote:

On Tue, May 24, 2011 at 14:48, Artem Chuprina wrote:

...

An author writes that the code was tested on ghc 6.6 under Linux/x86. I have ghc 6.12.1 on Debian GNU/Linux. My compiler asked me to add type signatures in second arguments of catch (original code does not have them).

The latter sounds like new vs. old exceptions. The former, I think this is a known bug in 6.12.1.

I would second that - this is definitely a known bug in new (epoll-based) IO manager, closed in 6.12.3. If you decide to upgrade to ghc7, watch out for http://hackage.haskell.org/trac/ghc/ticket/4514 and make sure you got at least 7.0.2 -- Dmitry Astapov