Version-Release number of selected component:
hplip-gui-3.14.10-1.fc20

Additional info:
reporter:       libreport-2.2.3
backtrace_rating: 4
cmdline:        /usr/bin/python /usr/bin/hp-toolbox
crash_function: __pthread_mutex_lock
executable:     /usr/bin/python2.7
kernel:         3.17.4-200.fc20.i686
runlevel:       N 5
type:           CCpp
uid:            500

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 __pthread_mutex_lock at ../nptl/pthread_mutex_lock.c:66
 #1 _dbus_platform_rmutex_lock at dbus-sysdeps-pthread.c:156
 #2 _dbus_rmutex_lock at dbus-threads.c:176
 #4 pyqtDBusHelper::dispatch at dbus.cpp:319
 #5 pyqtDBusHelper::qt_static_metacall at moc_helper.cpp:53
 #6 QMetaCallEvent::placeMetaCall at kernel/qobject.cpp:524
 #7 QObject::event at kernel/qobject.cpp:1222
 #8 QApplicationPrivate::notify_helper at kernel/qapplication.cpp:4565
 #9 QApplication::notify at kernel/qapplication.cpp:4351
 #10 sipQApplication::notify at sipQtGuiQApplication.cpp:292