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

[Simon Marlow]

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