.
Thread 3 (Thread 4467):
#0  0x00007fd907a51093 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fd90827fac8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007fd9082802f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd904f60516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007fd9082a5086 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fd90b03cd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007fd907a5e1dd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 4466):
#0  0x00007fd90b041f2b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fd905f824d5 in ?? () from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0
No symbol table info available.
#2  0x00007fd90825414f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007fd9082549a1 in g_async_queue_timed_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007fd9082a74c7 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007fd9082a5086 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007fd90b03cd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007fd907a5e1dd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 4417):
#0  0x00007fd907a02b21 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fd90bfff203 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#2  0x00007fd90bfd3fa6 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#3  0x00007fd90bfd8db4 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#4  0x00007fd90bf674fa in QPainter::drawTiledPixmap(QRectF const&, QPixmap const&, QPointF const&) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#5  0x00007fd90be65354 in QWidgetPrivate::paintBackground(QPainter*, QRegion const&, int) const () from /usr/lib/libQtGui.so.4
No symbol table info available.
#6  0x00007fd90be6ac2c in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#7  0x00007fd90c02b4c3 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#8  0x00007fd90c02b836 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#9  0x00007fd90be9b34a in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#10 0x00007fd90be9c48b in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
No symbol table info available.
#11 0x00007fd90bec4ac2 in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#12 0x00007fd90827f5bd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#13 0x00007fd90827fdb8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#14 0x00007fd90827ff89 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#15 0x00007fd90b91a746 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#16 0x00007fd90bec472e in ?? () from /usr/lib/libQtGui.so.4
No symbol table info available.
#17 0x00007fd90b8eec62 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#18 0x00007fd90b8eee67 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
No symbol table info available.
#19 0x00007fd90b8f307b in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
No symbol table info available.
#20 0x0000000000417a59 in main ()
No symbol table info available.