Program received signal SIGSEGV, Segmentation fault.
0x00007ffff5ea8368 in QCoreApplication::postEvent (receiver=0x8c4b50, event=0x9d6a20, priority=0)
    at kernel/qcoreapplication.cpp:1230
1230	    QThreadData *data = *pdata;
(gdb) bt
#0  0x00007ffff5ea8368 in QCoreApplication::postEvent (receiver=0x8c4b50, event=0x9d6a20, priority=0)
    at kernel/qcoreapplication.cpp:1230
#1  0x00007ffff5ee51b2 in QObject::deleteLater (this=0x8c4b50) at kernel/qobject.cpp:2013
#2  0x00007fffefb10a39 in QXcbDrag::handleFinished (this=0x6514c0, event=0x7fffe4003940) at qxcbdrag.cpp:1015
#3  0x00007fffefb0101a in QXcbConnection::handleClientMessageEvent (this=0x613540, event=0x7fffe4003940)
    at qxcbconnection.cpp:1228
#4  0x00007fffefaff788 in QXcbConnection::handleXcbEvent (this=0x613540, event=0x7fffe4003940) at qxcbconnection.cpp:830
#5  0x00007fffefb00e4b in QXcbConnection::processXcbEvents (this=0x613540) at qxcbconnection.cpp:1199
#6  0x00007fffefb340db in QXcbConnection::qt_static_metacall (_o=0x613540, _c=QMetaObject::InvokeMetaMethod, _id=0, 
    _a=0x7fffe4003330) at .moc/moc_qxcbconnection.cpp:179
#7  0x00007ffff5ee25e5 in QMetaCallEvent::placeMetaCall (this=0x7fffe4003760, object=0x613540) at kernel/qobject.cpp:487
#8  0x00007ffff5ee360e in QObject::event (this=0x613540, e=0x7fffe4003760) at kernel/qobject.cpp:1144
#9  0x00007ffff5ea7eae in QCoreApplicationPrivate::notify_helper (this=0x606380, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:998
#10 0x00007ffff5ea7b70 in QCoreApplication::notify (this=0x7fffffffe100, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:943
#11 0x00007ffff648e370 in QGuiApplication::notify (this=0x7fffffffe100, object=0x613540, event=0x7fffe4003760)
    at kernel/qguiapplication.cpp:1353
#12 0x00007ffff5ea7a78 in QCoreApplication::notifyInternal (this=0x7fffffffe100, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:881
#13 0x00007ffff5eab743 in QCoreApplication::sendEvent (receiver=0x613540, event=0x7fffe4003760)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:232
#14 0x00007ffff5ea8dc1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x6049e0)
    at kernel/qcoreapplication.cpp:1485
#15 0x00007ffff5ea8771 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0)
    at kernel/qcoreapplication.cpp:1343
#16 0x00007ffff5f1ebff in postEventSourceDispatch (s=0x6e52c0) at kernel/qeventdispatcher_glib.cpp:279
#17 0x00007ffff34aa296 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#18 0x00007ffff34aa5e8 in ?? () from /usr/lib/libglib-2.0.so.0
#19 0x00007ffff34aa68c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#20 0x00007ffff5f1f39f in QEventDispatcherGlib::processEvents (this=0x6e51b0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:426
#21 0x00007fffefb35262 in QPAEventDispatcherGlib::processEvents (this=0x6e51b0, flags=...)
    at eventdispatchers/qeventdispatcher_glib.cpp:123
---Type <return> to continue, or q <return> to quit---
#22 0x00007ffff5ea47e2 in QEventLoop::processEvents (this=0x7fffffffe010, flags=...) at kernel/qeventloop.cpp:136
#23 0x00007ffff5ea4ac5 in QEventLoop::exec (this=0x7fffffffe010, flags=...) at kernel/qeventloop.cpp:212
#24 0x00007ffff5ea8154 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1134
#25 0x00007ffff648e298 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1332
#26 0x00000000004019d3 in main (argc=1, argv=0x7fffffffe2f8) at ../externaldraganddrop/main.cpp:41


====

(gdb) bt full
#0  0x00007ffff5ea8368 in QCoreApplication::postEvent (receiver=0x8c4b50, event=0x9d6a20, priority=0)
    at kernel/qcoreapplication.cpp:1230
        __PRETTY_FUNCTION__ = "static void QCoreApplication::postEvent(QObject*, QEvent*, int)"
        data = 0x7ffff5eaf099 <QDeferredDeleteEvent::QDeferredDeleteEvent()+29>
        locker = {mtx = 0x0}
        pdata = 0x38
        eventDeleter = {d = 0x0}
        dispatcher = 0x9d6a20
#1  0x00007ffff5ee51b2 in QObject::deleteLater (this=0x8c4b50) at kernel/qobject.cpp:2013
No locals.
#2  0x00007fffefb10a39 in QXcbDrag::handleFinished (this=0x6514c0, event=0x7fffe4003940) at qxcbdrag.cpp:1015
        t = {timestamp = 530644, target = 31457291, proxy_target = 31457291, targetWindow = 0x7fffffffe0c0, drag = 
    0x8c4b50, time = {mds = 41420847}}
        at = 0
        __PRETTY_FUNCTION__ = "void QXcbDrag::handleFinished(const xcb_client_message_event_t*)"
        l = 0x7fffe400394c
#3  0x00007fffefb0101a in QXcbConnection::handleClientMessageEvent (this=0x613540, event=0x7fffe4003940)
    at qxcbconnection.cpp:1228
        window = 0x0
#4  0x00007fffefaff788 in QXcbConnection::handleXcbEvent (this=0x613540, event=0x7fffe4003940) at qxcbconnection.cpp:830
        result = 0
        dispatcher = 0x6e51b0
        handled = false
        response_type = 33
#5  0x00007fffefb00e4b in QXcbConnection::processXcbEvents (this=0x613540) at qxcbconnection.cpp:1199
        accepted = false
        it = 0x7ffff5f82b70 <qt_array+48>
        event = 0x7fffe4003940
        response_type = 33
        i = 0
        connection_error = 0
        __PRETTY_FUNCTION__ = "void QXcbConnection::processXcbEvents()"
        eventqueue = 0x622ff8
#6  0x00007fffefb340db in QXcbConnection::qt_static_metacall (_o=0x613540, _c=QMetaObject::InvokeMetaMethod, _id=0, 
---Type <return> to continue, or q <return> to quit---
    _a=0x7fffe4003330) at .moc/moc_qxcbconnection.cpp:179
        _t = 0x613540
#7  0x00007ffff5ee25e5 in QMetaCallEvent::placeMetaCall (this=0x7fffe4003760, object=0x613540) at kernel/qobject.cpp:487
No locals.
#8  0x00007ffff5ee360e in QObject::event (this=0x613540, e=0x7fffe4003760) at kernel/qobject.cpp:1144
        mce = 0x7fffe4003760
        sw = {receiver = 0x613540, previousSender = 0x0, currentSender = {sender = 0x622fe0, signal = 5, ref = 1}, 
          switched = true}
#9  0x00007ffff5ea7eae in QCoreApplicationPrivate::notify_helper (this=0x606380, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:998
No locals.
#10 0x00007ffff5ea7b70 in QCoreApplication::notify (this=0x7fffffffe100, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:943
        d = 0x606380
        __PRETTY_FUNCTION__ = "virtual bool QCoreApplication::notify(QObject*, QEvent*)"
#11 0x00007ffff648e370 in QGuiApplication::notify (this=0x7fffffffe100, object=0x613540, event=0x7fffe4003760)
    at kernel/qguiapplication.cpp:1353
No locals.
#12 0x00007ffff5ea7a78 in QCoreApplication::notifyInternal (this=0x7fffffffe100, receiver=0x613540, event=0x7fffe4003760)
    at kernel/qcoreapplication.cpp:881
        threadData = 0x6049e0
        loopLevelCounter = {threadData = 0x6049e0}
        result = false
        cbdata = {0x613540, 0x7fffe4003760, 0x7fffffffdbdf}
        d = 0x613420
#13 0x00007ffff5eab743 in QCoreApplication::sendEvent (receiver=0x613540, event=0x7fffe4003760)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:232
No locals.
#14 0x00007ffff5ea8dc1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x6049e0)
    at kernel/qcoreapplication.cpp:1485
        e = 0x7fffe4003760
        pe = @0x8d3f38: {receiver = 0x613540, event = 0x0, priority = 0}
        r = 0x613540
        unlocker = {m = @0x7fffffffdcb0}
---Type <return> to continue, or q <return> to quit---
        event_deleter = {d = 0x7fffe4003760}
        __PRETTY_FUNCTION__ = "static void QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*)"
        locker = {val = 6310408}
        startOffset = 0
        i = @0x6049fc: 1
        cleanup = {receiver = 0x0, event_type = 0, data = 0x6049e0, exceptionCaught = true}
#15 0x00007ffff5ea8771 in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0)
    at kernel/qcoreapplication.cpp:1343
        data = 0x6049e0
#16 0x00007ffff5f1ebff in postEventSourceDispatch (s=0x6e52c0) at kernel/qeventdispatcher_glib.cpp:279
        source = 0x6e52c0
#17 0x00007ffff34aa296 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#18 0x00007ffff34aa5e8 in ?? () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#19 0x00007ffff34aa68c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
No symbol table info available.
#20 0x00007ffff5f1f39f in QEventDispatcherGlib::processEvents (this=0x6e51b0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:426
        d = 0x6e5210
        canWait = true
        savedFlags = {i = 0}
        result = false
#21 0x00007fffefb35262 in QPAEventDispatcherGlib::processEvents (this=0x6e51b0, flags=...)
    at eventdispatchers/qeventdispatcher_glib.cpp:123
No locals.
#22 0x00007ffff5ea47e2 in QEventLoop::processEvents (this=0x7fffffffe010, flags=...) at kernel/qeventloop.cpp:136
        d = 0x86d280
#23 0x00007ffff5ea4ac5 in QEventLoop::exec (this=0x7fffffffe010, flags=...) at kernel/qeventloop.cpp:212
        locker = {val = 6310608}
        __PRETTY_FUNCTION__ = "int QEventLoop::exec(QEventLoop::ProcessEventsFlags)"
        ref = {d = 0x86d280, locker = @0x7fffffffdf90, exceptionCaught = true}
        app = 0x7fffffffe100
        d = 0x86d280
---Type <return> to continue, or q <return> to quit---
#24 0x00007ffff5ea8154 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1134
        threadData = 0x6049e0
        __PRETTY_FUNCTION__ = "static int QCoreApplication::exec()"
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6384570 <vtable for QEventLoop+16>, static staticMetaObject = {
              d = {superdata = 0x0, stringdata = 0x7ffff60300e0 <qt_meta_stringdata_QObject>, 
                data = 0x7ffff6030200 <qt_meta_data_QObject>, 
                static_metacall = 0x7ffff5eec5ec <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
                relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x86d280}, static staticQtMetaObject = {d = {
                superdata = 0x0, stringdata = 0x7ffff607d220 <qt_meta_stringdata_Qt>, 
                data = 0x7ffff6086ec0 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, 
                extradata = 0x0}}}, static staticMetaObject = {d = {
              superdata = 0x7ffff6380e20 <QObject::staticMetaObject>, 
              stringdata = 0x7ffff6093840 <qt_meta_stringdata_QEventLoop>, 
              data = 0x7ffff60938a0 <qt_meta_data_QEventLoop>, 
              static_metacall = 0x7ffff5f79434 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = 32767
#25 0x00007ffff648e298 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1332
No locals.
#26 0x00000000004019d3 in main (argc=1, argv=0x7fffffffe2f8) at ../externaldraganddrop/main.cpp:41
        app = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x7ffff6b527f0 <vtable for QGuiApplication+16>, 
              static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff60300e0 <qt_meta_stringdata_QObject>, 
                  data = 0x7ffff6030200 <qt_meta_data_QObject>, 
                  static_metacall = 0x7ffff5eec5ec <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x606380}, static staticQtMetaObject = {d = {superdata = 0x0, 
                  stringdata = 0x7ffff607d220 <qt_meta_stringdata_Qt>, data = 0x7ffff6086ec0 <qt_meta_data_Qt>, 
                  static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
                superdata = 0x7ffff6380e20 <QObject::staticMetaObject>, 
                stringdata = 0x7ffff60939c0 <qt_meta_stringdata_QCoreApplication>, 
                data = 0x7ffff6093be0 <qt_meta_data_QCoreApplication>, 
                static_metacall = 0x7ffff5f7958c <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffe100}, static staticMetaObject = {d = {
              superdata = 0x7ffff6384600 <QCoreApplication::staticMetaObject>, 
              stringdata = 0x7ffff681a8c0 <qt_meta_stringdata_QGuiApplication>, 
---Type <return> to continue, or q <return> to quit---
              data = 0x7ffff681acc0 <qt_meta_data_QGuiApplication>, 
              static_metacall = 0x7ffff6493ff6 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        view = {<QQuickWindow> = {<QWindow> = {<QObject> = {_vptr.QObject = 0x7ffff7dd4750 <vtable for QQuickView+16>, 
                static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff60300e0 <qt_meta_stringdata_QObject>, 
                    data = 0x7ffff6030200 <qt_meta_data_QObject>, 
                    static_metacall = 0x7ffff5eec5ec <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x6f3e50}, static staticQtMetaObject = {d = {superdata = 0x0, 
                    stringdata = 0x7ffff607d220 <qt_meta_stringdata_Qt>, data = 0x7ffff6086ec0 <qt_meta_data_Qt>, 
                    static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QSurface> = {
                _vptr.QSurface = 0x7ffff7dd4878 <vtable for QQuickView+312>, m_type = QSurface::Window, m_reserved = 0x0}, 
              static staticMetaObject = {d = {superdata = 0x7ffff6380e20 <QObject::staticMetaObject>, 
                  stringdata = 0x7ffff681bde0 <qt_meta_stringdata_QWindow>, data = 0x7ffff681c8e0 <qt_meta_data_QWindow>, 
                  static_metacall = 0x7ffff649dea6 <QWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
                superdata = 0x7ffff6b529a0 <QWindow::staticMetaObject>, 
                stringdata = 0x7ffff7a8b680 <qt_meta_stringdata_QQuickWindow>, 
                data = 0x7ffff7a8bac0 <qt_meta_data_QQuickWindow>, 
                static_metacall = 0x7ffff78da62c <QQuickWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {
              superdata = 0x7ffff7dc0d60 <QQuickWindow::staticMetaObject>, 
              stringdata = 0x7ffff7ad13a0 <qt_meta_stringdata_QQuickView>, 
              data = 0x7ffff7ad16a0 <qt_meta_data_QQuickView>, 
              static_metacall = 0x7ffff7a53f34 <QQuickView::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, 
              relatedMetaObjects = 0x0, extradata = 0x0}}}