Application: plasma-desktop (4.11.12)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.16.6-2-desktop x86_64
Distribution: "openSUSE 13.2 (Harlequin) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I was trying to add a widget (show the desktop) I dragged it down (incorrect) to the panel, at that moment a crash was lauched

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f6dea546780 (LWP 1787))]

Thread 4 (Thread 0x7f6dbfdce700 (LWP 1815)):
#0  0x00007f6de8e0905f in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6ddb69a8cb in  () at /usr/lib64/libQtScript.so.4
#2  0x00007f6ddb69a909 in  () at /usr/lib64/libQtScript.so.4
#3  0x00007f6de8e050a4 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6de7b717fd in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f6d3cf5a700 (LWP 1817)):
#0  0x00007f6de7b693cd in poll () at /lib64/libc.so.6
#1  0x00007f6de4c7bbe4 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f6de4c7bcec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f6de91ca0de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#4  0x00007f6de919be6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#5  0x00007f6de919c165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f6de90990bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#7  0x00007f6de917d783 in  () at /usr/lib64/libQtCore.so.4
#8  0x00007f6de909b79f in  () at /usr/lib64/libQtCore.so.4
#9  0x00007f6de8e050a4 in start_thread () at /lib64/libpthread.so.0
#10 0x00007f6de7b717fd in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f6d37fff700 (LWP 1818)):
#0  0x00007f6de8e0ba9d in read () at /lib64/libpthread.so.0
#1  0x00007f6de4cbc750 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f6de4c7b714 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f6de4c7bb7b in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f6de4c7bcec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f6de91ca0de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#6  0x00007f6de919be6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#7  0x00007f6de919c165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#8  0x00007f6de90990bf in QThread::exec() () at /usr/lib64/libQtCore.so.4
#9  0x00007f6de917d783 in  () at /usr/lib64/libQtCore.so.4
#10 0x00007f6de909b79f in  () at /usr/lib64/libQtCore.so.4
#11 0x00007f6de8e050a4 in start_thread () at /lib64/libpthread.so.0
#12 0x00007f6de7b717fd in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f6dea546780 (LWP 1787)):
[KCrash Handler]
#5  0x00007f6de7ac1187 in raise () at /lib64/libc.so.6
#6  0x00007f6de7ac2538 in abort () at /lib64/libc.so.6
#7  0x00007f6de7aff0c4 in  () at /lib64/libc.so.6
#8  0x00007f6de7b0492e in malloc_printerr () at /lib64/libc.so.6
#9  0x00007f6de7b05636 in _int_free () at /lib64/libc.so.6
#10 0x00007f6d3e121a80 in  () at /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#11 0x00007f6d3e121411 in  () at /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#12 0x00007f6d3e121504 in  () at /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#13 0x00007f6de88bddc2 in QGraphicsItem::sceneEvent(QEvent*) () at /usr/lib64/libQtGui.so.4
#14 0x00007f6ddae7a364 in QDeclarativeItem::sceneEvent(QEvent*) () at /usr/lib64/libQtDeclarative.so.4
#15 0x00007f6de88e47b7 in  () at /usr/lib64/libQtGui.so.4
#16 0x00007f6de88e47ef in QGraphicsScene::dragLeaveEvent(QGraphicsSceneDragDropEvent*) () at /usr/lib64/libQtGui.so.4
#17 0x00007f6de88f9e80 in QGraphicsScene::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#18 0x00007f6de831976c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#19 0x00007f6de831fcad in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#20 0x00007f6de9f40bda in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#21 0x00007f6de919d2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#22 0x00007f6de8911cf8 in QGraphicsView::dragLeaveEvent(QDragLeaveEvent*) () at /usr/lib64/libQtGui.so.4
#23 0x00007f6de8368973 in QWidget::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#24 0x00007f6de87055ee in QFrame::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#25 0x00007f6de8911429 in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib64/libQtGui.so.4
#26 0x00007f6de919d416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#27 0x00007f6de831974c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#28 0x00007f6de8320b96 in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#29 0x00007f6de9f40bda in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#30 0x00007f6de919d2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#31 0x00007f6de839d6be in  () at /usr/lib64/libQtGui.so.4
#32 0x00007f6de839d800 in  () at /usr/lib64/libQtGui.so.4
#33 0x00007f6de839dc0a in  () at /usr/lib64/libQtGui.so.4
#34 0x00007f6de832a34a in QDrag::~QDrag() () at /usr/lib64/libQtGui.so.4
#35 0x00007f6de832a369 in QDrag::~QDrag() () at /usr/lib64/libQtGui.so.4
#36 0x00007f6de91b3ae8 in QObjectPrivate::deleteChildren() () at /usr/lib64/libQtCore.so.4
#37 0x00007f6de8365437 in QWidget::~QWidget() () at /usr/lib64/libQtGui.so.4
#38 0x00007f6de8365749 in QWidget::~QWidget() () at /usr/lib64/libQtGui.so.4
#39 0x00007f6de91b3ae8 in QObjectPrivate::deleteChildren() () at /usr/lib64/libQtCore.so.4
#40 0x00007f6de8365437 in QWidget::~QWidget() () at /usr/lib64/libQtGui.so.4
#41 0x00007f6de890b595 in QGraphicsView::~QGraphicsView() () at /usr/lib64/libQtGui.so.4
#42 0x00007f6de890b5c9 in QGraphicsView::~QGraphicsView() () at /usr/lib64/libQtGui.so.4
#43 0x00007f6dd3b4fef4 in  () at /usr/lib64/libkdeinit4_plasma-desktop.so
#44 0x00007f6dd3b4ff49 in  () at /usr/lib64/libkdeinit4_plasma-desktop.so
#45 0x00007f6de91b55d8 in QObject::event(QEvent*) () at /usr/lib64/libQtCore.so.4
#46 0x00007f6de8368c5b in QWidget::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#47 0x00007f6de831976c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#48 0x00007f6de831fcad in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#49 0x00007f6de9f40bda in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#50 0x00007f6de919d2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#51 0x00007f6de91a057d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#52 0x00007f6de91ca8fe in  () at /usr/lib64/libQtCore.so.4
#53 0x00007f6de4c7ba04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#54 0x00007f6de4c7bc48 in  () at /usr/lib64/libglib-2.0.so.0
#55 0x00007f6de4c7bcec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#56 0x00007f6de91ca0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#57 0x00007f6de83b6676 in  () at /usr/lib64/libQtGui.so.4
#58 0x00007f6de919be6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#59 0x00007f6de919c165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#60 0x00007f6de83a003d in  () at /usr/lib64/libQtGui.so.4
#61 0x00007f6de832a5aa in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) () at /usr/lib64/libQtGui.so.4
#62 0x00007f6d3e1212c8 in  () at /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#63 0x00007f6d3e121381 in  () at /usr/lib64/kde4/imports/org/kde/draganddrop/libdraganddropplugin.so
#64 0x00007f6de88e00d5 in  () at /usr/lib64/libQtGui.so.4
#65 0x00007f6de88e469e in  () at /usr/lib64/libQtGui.so.4
#66 0x00007f6de88e4b9f in  () at /usr/lib64/libQtGui.so.4
#67 0x00007f6de88edea6 in QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) () at /usr/lib64/libQtGui.so.4
#68 0x00007f6de88f9cec in QGraphicsScene::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#69 0x00007f6de831976c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#70 0x00007f6de831fcad in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#71 0x00007f6de9f40bda in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#72 0x00007f6de919d2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#73 0x00007f6de890eecc in QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) () at /usr/lib64/libQtGui.so.4
#74 0x00007f6de890fdda in QGraphicsView::mouseMoveEvent(QMouseEvent*) () at /usr/lib64/libQtGui.so.4
#75 0x00007f6de8368d35 in QWidget::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#76 0x00007f6de87055ee in QFrame::event(QEvent*) () at /usr/lib64/libQtGui.so.4
#77 0x00007f6de8911429 in QGraphicsView::viewportEvent(QEvent*) () at /usr/lib64/libQtGui.so.4
#78 0x00007f6de919d416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#79 0x00007f6de831974c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#80 0x00007f6de831fdea in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#81 0x00007f6de9f40bda in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#82 0x00007f6de919d2ad in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#83 0x00007f6de831f5e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () at /usr/lib64/libQtGui.so.4
#84 0x00007f6de8390c9b in  () at /usr/lib64/libQtGui.so.4
#85 0x00007f6de838f70c in QApplication::x11ProcessEvent(_XEvent*) () at /usr/lib64/libQtGui.so.4
#86 0x00007f6de83b65c2 in  () at /usr/lib64/libQtGui.so.4
#87 0x00007f6de4c7ba04 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#88 0x00007f6de4c7bc48 in  () at /usr/lib64/libglib-2.0.so.0
#89 0x00007f6de4c7bcec in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#90 0x00007f6de91ca0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#91 0x00007f6de83b6676 in  () at /usr/lib64/libQtGui.so.4
#92 0x00007f6de919be6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#93 0x00007f6de919c165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#94 0x00007f6de91a15b9 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#95 0x00007f6dd3b5eb94 in kdemain () at /usr/lib64/libkdeinit4_plasma-desktop.so
#96 0x0000000000408815 in _start ()

Reported using DrKonqi