Examplesimple_wget crashing from time to time with error:
boost thread: trying joining itself: Resource deadlock avoided

How to reproduce

I turn off wi-fi and run command:
simple_wget https://example.com/some/archive.tar.gz

Usually command exits with code 1 and message:

Saving to: archive.tar.gzHost not found (authoritative)

which is expected and good, but sometimes application crash in libc++ with message:

libc++abi.dylib: terminating with unexpected exception of type boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::thread_resource_error> >: boost thread: trying joining itself: Resource deadlock avoidedProcess 75882 stopped

Backtrace can be foundhere

I can guess that exception which is thrown fromjoin triggerstd::terminate
because destructor hasnothrow type (async_impl.h):

~async_client()throw ()      {        sentinel_.reset();if (lifetime_thread_.get()) {          lifetime_thread_->join();// BOOM!          lifetime_thread_.reset();        }      }

Some tests

• 5 crash from 1000 run
• 36 crash from 10000 run

Environment

• Mac OS X 10.9.1, boost 1.55 (debug build with libc++), openssl (system)
• iOS, boost 1.55 (debug build with libc++), openssl 1.0.1e
• I'm usingcpp-netlib-0.10.1, butcpp-netlib-0.11.0-rc3 has same behaviour

Also I've tried it on my virtual machine with Mac OS X 10.8.5 (which not using wi-fi),
there isno crashes.