Application: korganizer (4.14.6)
KDE Platform Version: 4.14.6 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.16.7-21-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
Cleaning up my to do list ....  aggregating stuff.

Dragging a level 1 item to be a level 2.  Level 1 item had sub-todos.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KOrganizer (korganizer), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f34e67d6500 in KCalCore::IncidenceBase::uid() const () at /usr/lib64/libkcalcore.so.4
#7  0x00007f34de36237e in  () at /usr/lib64/libeventviews.so.4
#8  0x00007f34e4c323c7 in QSortFilterProxyModel::dropMimeData(QMimeData const*, Qt::DropAction, int, int, QModelIndex const&) (this=0x220d3e0, data=0xcc0dea0, action=Qt::MoveAction, row=<optimized out>, column=<optimized out>, parent=...) at itemviews/qsortfilterproxymodel.cpp:1833
#9  0x00007f34e4bb342e in QAbstractItemView::dropEvent(QDropEvent*) (this=0x225cb30, event=0x7ffd240b0af0) at itemviews/qabstractitemview.cpp:2006
#10 0x00007f34e471195a in QWidget::event(QEvent*) (this=this@entry=0x225cb30, event=event@entry=0x7ffd240b0af0) at kernel/qwidget.cpp:8590
#11 0x00007f34e4aae5ee in QFrame::event(QEvent*) (this=0x225cb30, e=0x7ffd240b0af0) at widgets/qframe.cpp:557
#12 0x00007f34e4bbde13 in QAbstractItemView::viewportEvent(QEvent*) (this=this@entry=0x225cb30, event=event@entry=0x7ffd240b0af0) at itemviews/qabstractitemview.cpp:1644
#13 0x00007f34e4bfc9c0 in QTreeView::viewportEvent(QEvent*) (this=0x225cb30, event=0x7ffd240b0af0) at itemviews/qtreeview.cpp:1252
#14 0x00007f34e5329416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0x2239350, event=event@entry=0x7ffd240b0af0) at kernel/qcoreapplication.cpp:1063
#15 0x00007f34e46c274c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0x2239350, e=e@entry=0x7ffd240b0af0) at kernel/qapplication.cpp:4561
#16 0x00007f34e46c9b96 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd240b2b00, receiver=receiver@entry=0x2239350, e=e@entry=0x7ffd240b0af0) at kernel/qapplication.cpp:4351
#17 0x00007f34e70cfcea in KApplication::notify(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=0x2239350, event=0x7ffd240b0af0) at /usr/src/debug/kdelibs-4.14.6/kdeui/kernel/kapplication.cpp:311
#18 0x00007f34e53292ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=0x2239350, event=event@entry=0x7ffd240b0af0) at kernel/qcoreapplication.cpp:953
#19 0x00007f34e4747761 in QX11Data::xdndHandleDrop(QWidget*, _XEvent const*, bool) (event=0x7ffd240b0af0, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#20 0x00007f34e4747761 in QX11Data::xdndHandleDrop(QWidget*, _XEvent const*, bool) (this=<optimized out>, xe=xe@entry=0x7ffd240b0c10, passive=passive@entry=false) at kernel/qdnd_x11.cpp:1181
#21 0x00007f34e4747af5 in QDragManager::drop() (this=this@entry=0xb863660) at kernel/qdnd_x11.cpp:1761
#22 0x00007f34e4748d10 in QDragManager::eventFilter(QObject*, QEvent*) (this=0xb863660, o=<optimized out>, e=<optimized out>) at kernel/qdnd_x11.cpp:1310
#23 0x00007f34e5329382 in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0xe06e0c0, event=event@entry=0x7ffd240b10a0) at kernel/qcoreapplication.cpp:1044
#24 0x00007f34e46c26f8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0xe06e0c0, e=e@entry=0x7ffd240b10a0) at kernel/qapplication.cpp:4540
#25 0x00007f34e46c8dea in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd240b2b00, receiver=receiver@entry=0xe06e0c0, e=e@entry=0x7ffd240b10a0) at kernel/qapplication.cpp:4108
#26 0x00007f34e70cfcea in KApplication::notify(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=0xe06e0c0, event=0x7ffd240b10a0) at /usr/src/debug/kdelibs-4.14.6/kdeui/kernel/kapplication.cpp:311
#27 0x00007f34e53292ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=receiver@entry=0xe06e0c0, event=event@entry=0x7ffd240b10a0) at kernel/qcoreapplication.cpp:953
#28 0x00007f34e46c85e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#29 0x00007f34e46c85e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0xe06e0c0, event=event@entry=0x7ffd240b10a0, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0xe06e0c0, buttonDown=buttonDown@entry=0x7f34e51a2278 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#30 0x00007f34e4739c9b in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0xe06e0c0, event=event@entry=0x7ffd240b1410) at kernel/qapplication_x11.cpp:4530
#31 0x00007f34e473870c in QApplication::x11ProcessEvent(_XEvent*) (this=0x7ffd240b2b00, event=event@entry=0x7ffd240b1410) at kernel/qapplication_x11.cpp:3653
#32 0x00007f34e475f5c2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1cf7b30, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007f34dc782a04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#34 0x00007f34dc782c48 in  () at /usr/lib64/libglib-2.0.so.0
#35 0x00007f34dc782cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#36 0x00007f34e53560be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1c9d100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#37 0x00007f34e475f676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f34e5327e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0xc31fd20, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007f34e5328165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0xc31fd20, flags=...) at kernel/qeventloop.cpp:204
#40 0x00007f34e474903d in QDragManager::drag(QDrag*) (this=0xb863660, o=o@entry=0xde59bb0) at kernel/qdnd_x11.cpp:2028
#41 0x00007f34e46d35aa in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) (this=this@entry=0xde59bb0, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#42 0x00007f34e4bbeaae in QAbstractItemView::startDrag(QFlags<Qt::DropAction>) (this=this@entry=0x225cb30, supportedActions=...) at itemviews/qabstractitemview.cpp:3540
#43 0x00007f34e4bbd379 in QAbstractItemView::mouseMoveEvent(QMouseEvent*) (this=0x225cb30, event=<optimized out>) at itemviews/qabstractitemview.cpp:1725
#44 0x00007f34e4711d35 in QWidget::event(QEvent*) (this=this@entry=0x225cb30, event=event@entry=0x7ffd240b21c0) at kernel/qwidget.cpp:8374
#45 0x00007f34e4aae5ee in QFrame::event(QEvent*) (this=0x225cb30, e=0x7ffd240b21c0) at widgets/qframe.cpp:557
#46 0x00007f34e4bbde13 in QAbstractItemView::viewportEvent(QEvent*) (this=this@entry=0x225cb30, event=event@entry=0x7ffd240b21c0) at itemviews/qabstractitemview.cpp:1644
#47 0x00007f34e4bfc9c0 in QTreeView::viewportEvent(QEvent*) (this=0x225cb30, event=0x7ffd240b21c0) at itemviews/qtreeview.cpp:1252
#48 0x00007f34e5329416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0x2239350, event=event@entry=0x7ffd240b21c0) at kernel/qcoreapplication.cpp:1063
#49 0x00007f34e46c274c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1cf8790, receiver=receiver@entry=0x2239350, e=e@entry=0x7ffd240b21c0) at kernel/qapplication.cpp:4561
#50 0x00007f34e46c8dea in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7ffd240b2b00, receiver=receiver@entry=0x2239350, e=e@entry=0x7ffd240b21c0) at kernel/qapplication.cpp:4108
#51 0x00007f34e70cfcea in KApplication::notify(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=0x2239350, event=0x7ffd240b21c0) at /usr/src/debug/kdelibs-4.14.6/kdeui/kernel/kapplication.cpp:311
#52 0x00007f34e53292ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7ffd240b2b00, receiver=receiver@entry=0x2239350, event=event@entry=0x7ffd240b21c0) at kernel/qcoreapplication.cpp:953
#53 0x00007f34e46c85e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#54 0x00007f34e46c85e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0x2239350, event=event@entry=0x7ffd240b21c0, alienWidget=alienWidget@entry=0x2239350, nativeWidget=nativeWidget@entry=0x225cb30, buttonDown=buttonDown@entry=0x7f34e51a2278 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#55 0x00007f34e4739c9b in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0x225cb30, event=event@entry=0x7ffd240b2530) at kernel/qapplication_x11.cpp:4530
#56 0x00007f34e473870c in QApplication::x11ProcessEvent(_XEvent*) (this=0x7ffd240b2b00, event=event@entry=0x7ffd240b2530) at kernel/qapplication_x11.cpp:3653
#57 0x00007f34e475f5c2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1cf7b30, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#58 0x00007f34dc782a04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#59 0x00007f34dc782c48 in  () at /usr/lib64/libglib-2.0.so.0
#60 0x00007f34dc782cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#61 0x00007f34e53560be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1c9d100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#62 0x00007f34e475f676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#63 0x00007f34e5327e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd240b2900, flags=...) at kernel/qeventloop.cpp:149
#64 0x00007f34e5328165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd240b2900, flags=...) at kernel/qeventloop.cpp:204
#65 0x00007f34e532d5b9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#66 0x00000000004082de in  ()
#67 0x00007f34e3c40b05 in __libc_start_main (main=0x407d30, argc=1, argv=0x7ffd240b2c28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd240b2c18) at libc-start.c:285
#68 0x00000000004085a4 in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 346201.

Reported using DrKonqi