[Boost-users] [threads] thread_group::create_thread() locks?

Hi, My program uses a thread group for handling threads. these are joined, when the program ist killed, which should happen not so often, because its used to be a daemon. Most time it works just as expected. but sometimes after running the program for some minutes and after creating a bunch of threads the function thread_group::create_thread() locks. Is this possible? i think it shoulnt lokc, but it does. Im sorry, i cannot show you code cause its closed source and its a liddle bit too big and also works most of the time. I hope a answer to this question will allready help fixing. Thanks for reading. Cheers Manuel Jung