Core with following  details reported against 1.3 beta, not other details available at this point.

Description of problem:

(gdb) thread apply all bt

Thread 4 (Thread 9958):
#0  0x00002b65bea89108 in epoll_wait () from /lib64/libc.so.6
#1  0x00002b65bd890b81 in qpid::sys::Poller::wait(qpid::sys::Duration)
() from /usr/lib64/libqpidcommon.so.3
#2  0x00002b65bd891617 in qpid::sys::Poller::run() ()
from /usr/lib64/libqpidcommon.so.3
#3  0x00002b65bd3ddd62 in qpid::broker::Broker::run() ()
from /usr/lib64/libqpidbroker.so.3
#4  0x00000000004093f4 in ?? ()
#5  0x00002b65bd3ffd9e in qpid::broker::Daemon::fork() ()
from /usr/lib64/libqpidbroker.so.3
#6  0x0000000000406c65 in ?? ()
#7  0x00000000004055af in std::ios_base::Init::~Init() ()
#8  0x00002b65be9d2994 in __libc_start_main () from /lib64/libc.so.6
#9  0x0000000000405019 in std::ios_base::Init::~Init() ()
#10 0x00007fffeddf2078 in ?? ()
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 9961):
#0  0x00002b65bed18150 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1  0x00002b65bd95ffdf in qpid::sys::Timer::run() ()
from /usr/lib64/libqpidcommon.so.3
#2  0x00002b65bd88786a in ?? () from /usr/lib64/libqpidcommon.so.3
#3  0x00002b65bed1373d in start_thread () from /lib64/libpthread.so.0
#4  0x00002b65bea88d1d in clone () from /lib64/libc.so.6

Thread 2 (Thread 9962):
#0  0x00002b65bea89108 in epoll_wait () from /lib64/libc.so.6
#1  0x00002b65bd890b81 in qpid::sys::Poller::wait(qpid::sys::Duration)
() from /usr/lib64/libqpidcommon.so.3
#2  0x00002b65bd891617 in qpid::sys::Poller::run() ()
from /usr/lib64/libqpidcommon.so.3
#3  0x00002b65bd88786a in ?? () from /usr/lib64/libqpidcommon.so.3
#4  0x00002b65bed1373d in start_thread () from /lib64/libpthread.so.0
#5  0x00002b65bea88d1d in clone () from /lib64/libc.so.6

Thread 1 (Thread 9959):
#0  0x00002b65be9e5265 in raise () from /lib64/libc.so.6
#1  0x00002b65be9e6d10 in abort () from /lib64/libc.so.6
#2  0x00002b65be2e1cb4 in __gnu_cxx::__verbose_terminate_handler() ()
from /usr/lib64/libstdc++.so.6
#3  0x00002b65be2dfdb6 in ?? () from /usr/lib64/libstdc++.so.6
#4  0x00002b65be2dfde3 in std::terminate() () from /usr/lib64/libstdc
++.so.6
#5  0x00002b65be2e02ef in __cxa_pure_virtual () from /usr/lib64/libstdc
++.so.6
#6  0x00002b65bd93eb8e in
qpid::framing::Proxy::send(qpid::framing::AMQBody const&) ()
from /usr/lib64/libqpidcommon.so.3
#7  0x00002b65bd8ec015 in
qpid::framing::AMQP_AllProxy::Connection::heartbeat() ()
from /usr/lib64/libqpidcommon.so.3
#8  0x00002b65bd3f8e8e in qpid::broker::ConnectionHeartbeatTask::fire()
() from /usr/lib64/libqpidbroker.so.3
#9  0x00002b65bd95fc60 in qpid::sys::Timer::run() ()
from /usr/lib64/libqpidcommon.so.3
#10 0x00002b65bd88786a in ?? () from /usr/lib64/libqpidcommon.so.3
#11 0x00002b65bed1373d in start_thread () from /lib64/libpthread.so.0
#12 0x00002b65bea88d1d in clone () from /lib64/libc.so.6