[Haskell-cafe] Re: all threads are blocked by recvFrom

Vitaliy Akimov wrote:

Hello, I have a problem with building multithreaded UDP server. If main thread is waiting for new request in recvFrom all other threads are blocked too. I've checked every variant with forkIO,forkOS,-threaded etc, nothing's helped. After reading GHC docs I've understood this is happened becouse foreign function call from recvFrom (network library) is marked to be unsefe, so it's execution blocks every other thread. How can I resolve it?

Sorry for the late reply. This will be fixed in GHC 6.8.3: http://hackage.haskell.org/trac/ghc/ticket/1129 Cheers, Simon