Application: korganizer (4.14.4)
KDE Platform Version: 4.14.4 (Compiled from sources)
Qt Version: 4.8.6
Operating System: Linux 3.16.7-7-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I was dragging some tasks under another task. (making subtasks) (organizing tasks).
Had moved about 5 tasks down, and then korganizer segfaulted.

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  0x00007fd44161d500 in KCalCore::IncidenceBase::uid() const () at /usr/lib64/libkcalcore.so.4
#7  0x00007fd4391d037e in  () at /usr/lib64/libeventviews.so.4
#8  0x00007fd43fa883c7 in QSortFilterProxyModel::dropMimeData(QMimeData const*, Qt::DropAction, int, int, QModelIndex const&) (this=0x1ff9370, data=0xafaffc0, action=Qt::MoveAction, row=<optimized out>, column=<optimized out>, parent=...) at itemviews/qsortfilterproxymodel.cpp:1833
#9  0x00007fd43fa0942e in QAbstractItemView::dropEvent(QDropEvent*) (this=0x2057bb0, event=0x7fffd9d950a0) at itemviews/qabstractitemview.cpp:2006
#10 0x00007fd43f56795a in QWidget::event(QEvent*) (this=this@entry=0x2057bb0, event=event@entry=0x7fffd9d950a0) at kernel/qwidget.cpp:8590
#11 0x00007fd43f9045ee in QFrame::event(QEvent*) (this=0x2057bb0, e=0x7fffd9d950a0) at widgets/qframe.cpp:557
#12 0x00007fd43fa13e13 in QAbstractItemView::viewportEvent(QEvent*) (this=this@entry=0x2057bb0, event=event@entry=0x7fffd9d950a0) at itemviews/qabstractitemview.cpp:1644
#13 0x00007fd43fa529c0 in QTreeView::viewportEvent(QEvent*) (this=0x2057bb0, event=0x7fffd9d950a0) at itemviews/qtreeview.cpp:1252
#14 0x00007fd44017f416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0x201a450, event=event@entry=0x7fffd9d950a0) at kernel/qcoreapplication.cpp:1063
#15 0x00007fd43f51874c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0x201a450, e=e@entry=0x7fffd9d950a0) at kernel/qapplication.cpp:4561
#16 0x00007fd43f51fb96 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7fffd9d970b0, receiver=receiver@entry=0x201a450, e=e@entry=0x7fffd9d950a0) at kernel/qapplication.cpp:4351
#17 0x00007fd441f16baa in KApplication::notify(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=0x201a450, event=0x7fffd9d950a0) at /usr/src/debug/kdelibs-4.14.4/kdeui/kernel/kapplication.cpp:311
#18 0x00007fd44017f2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=0x201a450, event=event@entry=0x7fffd9d950a0) at kernel/qcoreapplication.cpp:953
#19 0x00007fd43f59d761 in QX11Data::xdndHandleDrop(QWidget*, _XEvent const*, bool) (event=0x7fffd9d950a0, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#20 0x00007fd43f59d761 in QX11Data::xdndHandleDrop(QWidget*, _XEvent const*, bool) (this=<optimized out>, xe=xe@entry=0x7fffd9d951c0, passive=passive@entry=false) at kernel/qdnd_x11.cpp:1181
#21 0x00007fd43f59daf5 in QDragManager::drop() (this=this@entry=0xb5f2800) at kernel/qdnd_x11.cpp:1761
#22 0x00007fd43f59ed10 in QDragManager::eventFilter(QObject*, QEvent*) (this=0xb5f2800, o=<optimized out>, e=<optimized out>) at kernel/qdnd_x11.cpp:1310
#23 0x00007fd44017f382 in QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0xd1b4200, event=event@entry=0x7fffd9d95650) at kernel/qcoreapplication.cpp:1044
#24 0x00007fd43f5186f8 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0xd1b4200, e=e@entry=0x7fffd9d95650) at kernel/qapplication.cpp:4540
#25 0x00007fd43f51edea in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7fffd9d970b0, receiver=receiver@entry=0xd1b4200, e=e@entry=0x7fffd9d95650) at kernel/qapplication.cpp:4108
#26 0x00007fd441f16baa in KApplication::notify(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=0xd1b4200, event=0x7fffd9d95650) at /usr/src/debug/kdelibs-4.14.4/kdeui/kernel/kapplication.cpp:311
#27 0x00007fd44017f2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=receiver@entry=0xd1b4200, event=event@entry=0x7fffd9d95650) at kernel/qcoreapplication.cpp:953
#28 0x00007fd43f51e5e3 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 0x00007fd43f51e5e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0xd1b4200, event=event@entry=0x7fffd9d95650, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0xd1b4200, buttonDown=buttonDown@entry=0x7fd43fff8278 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#30 0x00007fd43f58fc9b in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0xd1b4200, event=event@entry=0x7fffd9d959c0) at kernel/qapplication_x11.cpp:4530
#31 0x00007fd43f58e70c in QApplication::x11ProcessEvent(_XEvent*) (this=0x7fffd9d970b0, event=event@entry=0x7fffd9d959c0) at kernel/qapplication_x11.cpp:3653
#32 0x00007fd43f5b55c2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1af8e80, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007fd4375f0a04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#34 0x00007fd4375f0c48 in  () at /usr/lib64/libglib-2.0.so.0
#35 0x00007fd4375f0cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#36 0x00007fd4401ac0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1a8d100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#37 0x00007fd43f5b5676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007fd44017de6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x2175f80, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007fd44017e165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x2175f80, flags=...) at kernel/qeventloop.cpp:204
#40 0x00007fd43f59f03d in QDragManager::drag(QDrag*) (this=0xb5f2800, o=o@entry=0xab90ce0) at kernel/qdnd_x11.cpp:2028
#41 0x00007fd43f5295aa in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) (this=this@entry=0xab90ce0, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#42 0x00007fd43fa14aae in QAbstractItemView::startDrag(QFlags<Qt::DropAction>) (this=this@entry=0x2057bb0, supportedActions=...) at itemviews/qabstractitemview.cpp:3540
#43 0x00007fd43fa13379 in QAbstractItemView::mouseMoveEvent(QMouseEvent*) (this=0x2057bb0, event=<optimized out>) at itemviews/qabstractitemview.cpp:1725
#44 0x00007fd43f567d35 in QWidget::event(QEvent*) (this=this@entry=0x2057bb0, event=event@entry=0x7fffd9d96770) at kernel/qwidget.cpp:8374
#45 0x00007fd43f9045ee in QFrame::event(QEvent*) (this=0x2057bb0, e=0x7fffd9d96770) at widgets/qframe.cpp:557
#46 0x00007fd43fa13e13 in QAbstractItemView::viewportEvent(QEvent*) (this=this@entry=0x2057bb0, event=event@entry=0x7fffd9d96770) at itemviews/qabstractitemview.cpp:1644
#47 0x00007fd43fa529c0 in QTreeView::viewportEvent(QEvent*) (this=0x2057bb0, event=0x7fffd9d96770) at itemviews/qtreeview.cpp:1252
#48 0x00007fd44017f416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0x201a450, event=event@entry=0x7fffd9d96770) at kernel/qcoreapplication.cpp:1063
#49 0x00007fd43f51874c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0x1af5b70, receiver=receiver@entry=0x201a450, e=e@entry=0x7fffd9d96770) at kernel/qapplication.cpp:4561
#50 0x00007fd43f51edea in QApplication::notify(QObject*, QEvent*) (this=this@entry=0x7fffd9d970b0, receiver=receiver@entry=0x201a450, e=e@entry=0x7fffd9d96770) at kernel/qapplication.cpp:4108
#51 0x00007fd441f16baa in KApplication::notify(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=0x201a450, event=0x7fffd9d96770) at /usr/src/debug/kdelibs-4.14.4/kdeui/kernel/kapplication.cpp:311
#52 0x00007fd44017f2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0x7fffd9d970b0, receiver=receiver@entry=0x201a450, event=event@entry=0x7fffd9d96770) at kernel/qcoreapplication.cpp:953
#53 0x00007fd43f51e5e3 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 0x00007fd43f51e5e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0x201a450, event=event@entry=0x7fffd9d96770, alienWidget=alienWidget@entry=0x201a450, nativeWidget=nativeWidget@entry=0x1e37d20, buttonDown=buttonDown@entry=0x7fd43fff8278 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#55 0x00007fd43f58fc9b in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0x1e37d20, event=event@entry=0x7fffd9d96ae0) at kernel/qapplication_x11.cpp:4530
#56 0x00007fd43f58e70c in QApplication::x11ProcessEvent(_XEvent*) (this=0x7fffd9d970b0, event=event@entry=0x7fffd9d96ae0) at kernel/qapplication_x11.cpp:3653
#57 0x00007fd43f5b55c2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x1af8e80, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#58 0x00007fd4375f0a04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#59 0x00007fd4375f0c48 in  () at /usr/lib64/libglib-2.0.so.0
#60 0x00007fd4375f0cec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#61 0x00007fd4401ac0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x1a8d100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#62 0x00007fd43f5b5676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#63 0x00007fd44017de6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffd9d96eb0, flags=...) at kernel/qeventloop.cpp:149
#64 0x00007fd44017e165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffd9d96eb0, flags=...) at kernel/qeventloop.cpp:204
#65 0x00007fd4401835b9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#66 0x00000000004082de in  ()
#67 0x00007fd43ea95b05 in __libc_start_main (main=0x407d30, argc=1, argv=0x7fffd9d971d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffd9d971c8) at libc-start.c:285
#68 0x00000000004085a4 in _start ()

Reported using DrKonqi