GDB: pthread_cond_wait.S: No such file or directory - c++

Question

I am trying to join the thread using boost and the program seems to wait indefinitely when I do that.
Thread->join();
On the console I see the following output when I break.
Program received signal SIGINT, Interrupt.
pthread_cond_wait##GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
185 ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: No such file or directory.
Here is the GDB trace.
#0 pthread_cond_wait##GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00000000004900a3 in boost::condition_variable::wait(boost::unique_lock<boost::mutex>&) () at /usr/local/boost/include/boost/thread/pthread/condition_variable.hpp:73
#2 0x00007ffff724e333 in boost::thread::join_noexcept() () at libs/thread/src/pthread/thread.cpp:316
#3 0x000000000048e135 in LIN::waitForThreads() () at /usr/local/boost/include/boost/thread/detail/thread.hpp:767
#4 0x00000000004882fd in fa::testinit::test_method() () at /home/ubuntu/UnitTest01.cpp:205
#5 0x0000000000488ef1 in fa::testinit_invoker() () at /home/ubuntu/UnitTest01.cpp:173
#6 0x000000000047296b in boost::detail::function::function_obj_invoker0<boost::detail::forward, int>::invoke(boost::detail::function::function_buffer&) ()
at /usr/local/boost/include/boost/function/function_template.hpp:771
#7 0x000000000044aabd in boost::execution_monitor::catch_signals(boost::function<int ()> const&) () at /usr/local/boost/include/boost/function/function_template.hpp:771
#8 0x000000000044ab91 in boost::execution_monitor::execute(boost::function<int ()> const&) () at /usr/local/boost/include/boost/test/impl/execution_monitor.ipp:1207
#9 0x000000000044b2d5 in boost::execution_monitor::vexecute(boost::function<void ()> const&) () at /usr/local/boost/include/boost/test/impl/execution_monitor.ipp:1313
#10 0x0000000000452bb2 in boost::unit_test::unit_test_monitor_t::execute_and_translate(boost::function<void ()> const&, unsigned int) () at /usr/local/boost/include/boost/test/impl/unit_test_monitor.ipp:46
#11 0x0000000000484760 in boost::unit_test::framework::state::execute_test_tree(unsigned long, unsigned int) () at /usr/local/boost/include/boost/test/impl/framework.ipp:685
#12 0x00000000004849ac in boost::unit_test::framework::state::execute_test_tree(unsigned long, unsigned int) () at /usr/local/boost/include/boost/test/impl/framework.ipp:636
#13 0x0000000000460329 in boost::unit_test::framework::run(unsigned long, bool) () at /usr/local/boost/include/boost/test/impl/framework.ipp:636
#14 0x0000000000460957 in boost::unit_test::unit_test_main(boost::unit_test::test_suite* (*)(int, char**), int, char**) () at usr/local/boost/include/boost/test/impl/unit_test_main.ipp:228
#15 0x00007ffff6673aed in __libc_start_main (main=0x4419c0 <main>, argc=1, argv=0x7fffffffe6c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe6b8) at libc-start.c:269
#16 0x0000000000442ec9 in _start () at ../sysdeps/x86_64/start.S:122
waitForThreads code :
{
stopthread = true;
//wait for Thread 2
boost::mutex::scoped_lock lock(thread2_lock);
lock.unlock();
m_ConditionVariable.notify_one();
m_Thread->join();
}
Thread 2 code:
while(!stopthread){
boost::mutex::scoped_lock lock(thread2_lock);
while (m_Queue.empty())
{
m_ConditionVariable.wait(lock);
}
if (!m_Queue.empty()){
struct queue_output out;
out = m_Queue.front();
m_Queue.pop_front();
boost::mutex::scoped_lock new_lock(another_lock);
if (write(fd, &out, sizeof(struct queue_output)) == -1)
close(out.fd);
}
}
code to update queue:
{
boost::mutex::scoped_lock lock(thread2_lock);
m_Queue.push_back(input);
lock.unlock();
m_ConditionVariable.notify_one();
}
In UnitTest01.cpp, testinit first I am creating the thread, then updating the queue, then calling join.
Can someone please help me understand why it is hanging while thread joining?
Thanks in advance.