Compiled from https://github.com/memorycoin/memorycoin.git (Ubuntu 12.04 & CentOS 6.4)

periodically crash with the message:
terminate called after throwing an instance of 'boost::exception_detail::clone_impl >'
  what():  boost::thread_resource_error: Resource temporarily unavailable

Different server, different size of RAM (16, 32, 64G).

What could be the reason?