(gdb) bt #0 0x00007ffff33d5854 in __memcpy_sse2_unaligned () from /usr/lib/libc.so.6 #1 0x00007ffff3d0b891 in QListData::append(int) () from /usr/lib/libQt5Core.so.5 #2 0x00007ffff3eb41ed in ?? () from /usr/lib/libQt5Core.so.5 #3 0x00007ffff3eb459a in QMimeData::setText(QString const&) () from /usr/lib/libQt5Core.so.5 #4 0x00007ffff5be00ec in ?? () from /usr/lib/libQt5WebKit.so.5 #5 0x00007ffff5697f22 in ?? () from /usr/lib/libQt5WebKit.so.5 #6 0x00007ffff6547946 in ?? () from /usr/lib/libQt5WebKit.so.5 #7 0x00007ffff65bb2df in ?? () from /usr/lib/libQt5WebKit.so.5 #8 0x00007ffff65bc25d in ?? () from /usr/lib/libQt5WebKit.so.5 #9 0x00007ffff65c2d37 in ?? () from /usr/lib/libQt5WebKit.so.5 #10 0x00007ffff5a3c212 in ?? () from /usr/lib/libQt5WebKit.so.5 #11 0x00007ffff5a4265d in ?? () from /usr/lib/libQt5WebKit.so.5 #12 0x00007ffff5a45000 in ?? () from /usr/lib/libQt5WebKit.so.5 #13 0x00007ffff5a48084 in ?? () from /usr/lib/libQt5WebKit.so.5 #14 0x00007ffff56b9629 in QWebPageAdapter::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQt5WebKit.so.5 #15 0x00007ffff2796829 in QWebPage::event(QEvent*) () from /usr/lib/libQt5WebKitWidgets.so.5 #16 0x00007ffff78ee66a in WebPage::event(QEvent*) () from /usr/lib/libQupZilla.so.1 #17 0x00007ffff27974f8 in QWebView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQt5WebKitWidgets.so.5 #18 0x00007ffff79c445b in WebView::mouseMoveEvent(QMouseEvent*) () from /usr/lib/libQupZilla.so.1 #19 0x00007ffff4b6cc82 in QWidget::event(QEvent*) () from /usr/lib/libQt5Widgets.so.5 #20 0x00007ffff2798823 in QWebView::event(QEvent*) () from /usr/lib/libQt5WebKitWidgets.so.5 #21 0x00007ffff4b307cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #22 0x00007ffff4b35f81 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #23 0x00007ffff3e882f4 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5 #24 0x00007ffff4b34417 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer&, bool) () from /usr/lib/libQt5Widgets.so.5 #25 0x00007ffff4b8a497 in ?? () from /usr/lib/libQt5Widgets.so.5 #26 0x00007ffff4b8c61b in ?? () from /usr/lib/libQt5Widgets.so.5 #27 0x00007ffff4b307cc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #28 0x00007ffff4b354f8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5 #29 0x00007ffff3e882f4 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5 #30 0x00007ffff43a6541 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/libQt5Gui.so.5 #31 0x00007ffff43a7b65 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/libQt5Gui.so.5 #32 0x00007ffff438df87 in QWindowSystemInterface::sendWindowSystemEvents(QFlags) () from /usr/lib/libQt5Gui.so.5 #33 0x00007fffe7111f60 in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so #34 0x00007fffefbee296 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #35 0x00007fffefbee5e8 in ?? () from /usr/lib/libglib-2.0.so.0 #36 0x00007fffefbee68c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #37 0x00007ffff3edf9aa in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/libQt5Core.so.5 #38 0x00007ffff3e861bb in QEventLoop::exec(QFlags) () from /usr/lib/libQt5Core.so.5 #39 0x00007ffff3e8da04 in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5 #40 0x0000000000402e44 in main ()