Program received signal SIGSEGV, Segmentation fault.
0xb593d647 in ?? () from /usr/lib/libQt5WebKit.so.5
(gdb) bt
#0  0xb593d647 in ?? () from /usr/lib/libQt5WebKit.so.5
#1  0xb593a589 in ?? () from /usr/lib/libQt5WebKit.so.5
#2  0xb593ca14 in ?? () from /usr/lib/libQt5WebKit.so.5
#3  0xb4626050 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/sse2/libQt5Core.so.5
#4  0xb462666b in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/sse2/libQt5Core.so.5
#5  0xb46a76a5 in QIODevice::readyRead() () from /usr/lib/sse2/libQt5Core.so.5
#6  0xb4bd4a0a in ?? () from /usr/lib/libQt5Network.so.5
#7  0xb4c5dc7e in ?? () from /usr/lib/libQt5Network.so.5
#8  0xb46236cb in QMetaCallEvent::placeMetaCall(QObject*) () from /usr/lib/sse2/libQt5Core.so.5
#9  0xb4626e45 in QObject::event(QEvent*) () from /usr/lib/sse2/libQt5Core.so.5
#10 0xb74354e4 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#11 0xb743a921 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#12 0xb45f0b5a in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/sse2/libQt5Core.so.5
#13 0xb45f2bfb in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) ()
   from /usr/lib/sse2/libQt5Core.so.5
#14 0xb45f3383 in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/sse2/libQt5Core.so.5
#15 0xb4650ffe in ?? () from /usr/lib/sse2/libQt5Core.so.5
#16 0xb3c4a203 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#17 0xb3c4a488 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0xb3c4a548 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#19 0xb46503ad in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib/sse2/libQt5Core.so.5
#20 0xb10430e6 in ?? () from /usr/lib/qt5/plugins/platforms/libqxcb.so
#21 0xb45ee3d6 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/sse2/libQt5Core.so.5
#22 0xb45ee814 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/sse2/libQt5Core.so.5
#23 0xb45f67ad in QCoreApplication::exec() () from /usr/lib/sse2/libQt5Core.so.5
#24 0xb4d61514 in QGuiApplication::exec() () from /usr/lib/sse2/libQt5Gui.so.5
#25 0xb74316e4 in QApplication::exec() () from /usr/lib/libQt5Widgets.so.5
#26 0x0804c3f1 in main (argc=1, argv=0xbffff174) at main.cpp:189