.
Thread 2 (Thread 17881):
#0  0x00007fa111d6a82d in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
No symbol table info available.
#1  0x00007fa10de69672 in ?? () from /usr/lib/libgthread-2.0.so.0
No symbol table info available.
#2  0x00007fa10ea070df in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fa10ea561c0 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fa10ea54d24 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fa111d65a04 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#6  0x00007fa11033564d in clone () from /lib/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 17826):
#0  0x000000000043dc81 in ?? ()
No symbol table info available.
#1  0x00000000004e516d in ?? ()
No symbol table info available.
#2  0x00007fa110ecdd2c in QMetaObject::activate(QObject*, int, int, void**) ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#3  0x00007fa1113460a7 in QAction::triggered(bool) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#4  0x00007fa1113474ef in QAction::activate(QAction::ActionEvent) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#5  0x00007fa1116b0e1a in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#6  0x00007fa1116b10a5 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#7  0x00007fa11177faba in QToolButton::mouseReleaseEvent(QMouseEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#8  0x00007fa11139a950 in QWidget::event(QEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#9  0x00007fa11134befc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#10 0x00007fa111353011 in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#11 0x00007fa110eb8b7c in QCoreApplication::notifyInternal(QObject*, QEvent*)
    () from /usr/lib/libQtCore.so.4
No symbol table info available.
#12 0x00007fa1113528e0 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#13 0x00007fa1113b895e in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#14 0x00007fa1113b79f9 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/lib/libQtGui.so.4
No symbol table info available.
#15 0x00007fa1113e0c2c in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#16 0x00007fa10ea2bc4e in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#17 0x00007fa10ea2f618 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#18 0x00007fa10ea2f740 in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#19 0x00007fa110ee10f6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#20 0x00007fa1113e03de in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#21 0x00007fa110eb7482 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#22 0x00007fa110eb7854 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#23 0x00007fa110eb9a09 in QCoreApplication::exec() ()
   from /usr/lib/libQtCore.so.4
No symbol table info available.
#24 0x000000000041fb0a in ?? ()
No symbol table info available.
#25 0x00007fa110274abd in __libc_start_main () from /lib/libc.so.6
No symbol table info available.
#26 0x0000000000418db9 in ?? ()
No symbol table info available.
#27 0x00007fff40a8fc78 in ?? ()
No symbol table info available.
#28 0x000000000000001c in ?? ()
No symbol table info available.
#29 0x0000000000000001 in ?? ()
No symbol table info available.
#30 0x00007fff40a90b60 in ?? ()
No symbol table info available.
#31 0x0000000000000000 in ?? ()
No symbol table info available.