Bug 350690

Application: plasma-desktop (4.11.20)
KDE Platform Version: 4.14.9
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:
I was attempting to add the Amarok widget to the bottom panel on my desktop when Plasma crashed.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f951e066800 (LWP 3654))]

Thread 4 (Thread 0x7f94f1f7c700 (LWP 3658)):
#0  0x00007f951a19e05f in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f9516b508cb in QTWTF::TCMalloc_PageHeap::scavengerThread() (this=0x7f9516e4ef00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f9516b50909 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*) (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f951a19a0a4 in start_thread (arg=0x7f94f1f7c700) at pthread_create.c:309
#4  0x00007f951d9c708d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f94680a8700 (LWP 3659)):
#0  0x00007f951d9bad2d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f950b467f45 in  () at /usr/lib64/tls/libnvidia-tls.so.340.76
#2  0x00007f9510af0750 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f94680a7ba0, __fd=<optimized out>) at /usr/include/bits/unistd.h:44
#3  0x00007f9510af0750 in g_wakeup_acknowledge (wakeup=0xa478c0) at gwakeup.c:210
#4  0x00007f9510aaf714 in g_main_context_check (context=context@entry=0x7f94600009c0, max_priority=2147483647, fds=fds@entry=0x7f9460003430, n_fds=n_fds@entry=1) at gmain.c:3579
#5  0x00007f9510aafb7b in g_main_context_iterate (context=context@entry=0x7f94600009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3778
#6  0x00007f9510aafcec in g_main_context_iteration (context=0x7f94600009c0, may_block=1) at gmain.c:3842
#7  0x00007f951a55f0de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f94600008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#8  0x00007f951a530e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f94680a7da0, flags=...) at kernel/qeventloop.cpp:149
#9  0x00007f951a531165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f94680a7da0, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007f951a42e0bf in QThread::exec() (this=this@entry=0x19686e0) at thread/qthread.cpp:538
#11 0x00007f951a512783 in QInotifyFileSystemWatcherEngine::run() (this=0x19686e0) at io/qfilesystemwatcher_inotify.cpp:265
#12 0x00007f951a43079f in QThreadPrivate::start(void*) (arg=0x19686e0) at thread/qthread_unix.cpp:349
#13 0x00007f951a19a0a4 in start_thread (arg=0x7f94680a8700) at pthread_create.c:309
#14 0x00007f951d9c708d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f9467209700 (LWP 3663)):
#0  0x00007f951d9bec5d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f9510aafbe4 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f9458003230, timeout=-1, context=0x7f94580009c0) at gmain.c:4076
#2  0x00007f9510aafbe4 in g_main_context_iterate (context=context@entry=0x7f94580009c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#3  0x00007f9510aafcec in g_main_context_iteration (context=0x7f94580009c0, may_block=1) at gmain.c:3842
#4  0x00007f951a55f0de in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f94580008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007f951a530e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9467208da0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f951a531165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7f9467208da0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f951a42e0bf in QThread::exec() (this=this@entry=0x1a145f0) at thread/qthread.cpp:538
#8  0x00007f951a512783 in QInotifyFileSystemWatcherEngine::run() (this=0x1a145f0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f951a43079f in QThreadPrivate::start(void*) (arg=0x1a145f0) at thread/qthread_unix.cpp:349
#10 0x00007f951a19a0a4 in start_thread (arg=0x7f9467209700) at pthread_create.c:309
#11 0x00007f951d9c708d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f951e066800 (LWP 3654)):
[KCrash Handler]
#5  0x00007f951d95e376 in __malloc_usable_size (mem=0x7fff44339f70) at malloc.c:4567
#6  0x00007f951d95e376 in __malloc_usable_size (m=0x7fff44339f70) at malloc.c:4578
#7  0x00007f950daf5369 in  () at /usr/X11R6/lib64/libGL.so.1
#8  0x00007f950b4680a9 in  () at /usr/lib64/tls/libnvidia-tls.so.340.76
#9  0x00007f94f0939a80 in DeclarativeMimeData::DeclarativeMimeData(QMimeData const*) (this=0x7fff4433a020, copy=0x4ad0510) at /usr/src/debug/kde-runtime-14.12.3/plasma/declarativeimports/draganddrop/DeclarativeMimeData.cpp:50
#10 0x00007f94f0939411 in DeclarativeDragDropEvent::DeclarativeDragDropEvent(QGraphicsSceneDragDropEvent*, DeclarativeDropArea*) (this=0x7fff4433a000, e=0x7fff4433a430, parent=0x1f56510) at /usr/src/debug/kde-runtime-14.12.3/plasma/declarativeimports/draganddrop/DeclarativeDragDropEvent.cpp:33
#11 0x00007f94f0939504 in DeclarativeDropArea::dragLeaveEvent(QGraphicsSceneDragDropEvent*) (this=0x1f56510, event=<optimized out>) at /usr/src/debug/kde-runtime-14.12.3/plasma/declarativeimports/draganddrop/DeclarativeDropArea.cpp:44
#12 0x00007f9519c52dc2 in QGraphicsItem::sceneEvent(QEvent*) (this=this@entry=0x1f56520, event=event@entry=0x7fff4433a430) at graphicsview/qgraphicsitem.cpp:6734
#13 0x00007f951c159364 in QDeclarativeItem::sceneEvent(QEvent*) (this=0x1f56510, event=0x7fff4433a430) at graphicsitems/qdeclarativeitem.cpp:3047
#14 0x00007f9519c797b7 in QGraphicsScenePrivate::sendDragDropEvent(QGraphicsItem*, QGraphicsSceneDragDropEvent*) (this=this@entry=0xd58c10, item=0x1f56520, dragDropEvent=0x7fff4433a430) at graphicsview/qgraphicsscene.cpp:1250
#15 0x00007f9519c797ef in QGraphicsScene::dragLeaveEvent(QGraphicsSceneDragDropEvent*) (this=<optimized out>, event=<optimized out>) at graphicsview/qgraphicsscene.cpp:3738
#16 0x00007f9519c8ee80 in QGraphicsScene::event(QEvent*) (this=0xd590e0, event=0x7fff4433a430) at graphicsview/qgraphicsscene.cpp:3406
#17 0x00007f95196ae76c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0xd590e0, e=e@entry=0x7fff4433a430) at kernel/qapplication.cpp:4565
#18 0x00007f95196b4cad in QApplication::notify(QObject*, QEvent*) (this=this@entry=0xb360b0, receiver=receiver@entry=0xd590e0, e=e@entry=0x7fff4433a430) at kernel/qapplication.cpp:4351
#19 0x00007f951b214e0a in KApplication::notify(QObject*, QEvent*) (this=0xb360b0, receiver=0xd590e0, event=0x7fff4433a430) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#20 0x00007f951a5322ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0xb360b0, receiver=0xd590e0, event=event@entry=0x7fff4433a430) at kernel/qcoreapplication.cpp:953
#21 0x00007f9519ca6cf8 in QGraphicsView::dragLeaveEvent(QDragLeaveEvent*) (event=0x7fff4433a430, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#22 0x00007f9519ca6cf8 in QGraphicsView::dragLeaveEvent(QDragLeaveEvent*) (this=<optimized out>, event=0x7fff4433a840) at graphicsview/qgraphicsview.cpp:2990
#23 0x00007f95196fd973 in QWidget::event(QEvent*) (this=this@entry=0x37a6f60, event=event@entry=0x7fff4433a840) at kernel/qwidget.cpp:8602
#24 0x00007f9519a9a5ee in QFrame::event(QEvent*) (this=0x37a6f60, e=0x7fff4433a840) at widgets/qframe.cpp:557
#25 0x00007f9519ca6429 in QGraphicsView::viewportEvent(QEvent*) (this=0x37a6f60, event=0x7fff4433a840) at graphicsview/qgraphicsview.cpp:2866
#26 0x00007f951a532416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0x3022a40, event=event@entry=0x7fff4433a840) at kernel/qcoreapplication.cpp:1063
#27 0x00007f95196ae74c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0x3022a40, e=e@entry=0x7fff4433a840) at kernel/qapplication.cpp:4561
#28 0x00007f95196b5b96 in QApplication::notify(QObject*, QEvent*) (this=this@entry=0xb360b0, receiver=receiver@entry=0x3022a40, e=e@entry=0x7fff4433a840) at kernel/qapplication.cpp:4351
#29 0x00007f951b214e0a in KApplication::notify(QObject*, QEvent*) (this=0xb360b0, receiver=0x3022a40, event=0x7fff4433a840) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#30 0x00007f951a5322ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0xb360b0, receiver=0x3022a40, event=0x7fff4433a840) at kernel/qcoreapplication.cpp:953
#31 0x00007f95197326be in QX11Data::xdndHandleLeave(QWidget*, _XEvent const*, bool) (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#32 0x00007f95197326be in QX11Data::xdndHandleLeave(QWidget*, _XEvent const*, bool) (this=0x7fff44339f70, w=0x26, xe=0x7fff4433a890) at kernel/qdnd_x11.cpp:1064
#33 0x00007f9519732800 in qt_xdnd_send_leave() () at kernel/qdnd_x11.cpp:1103
#34 0x00007f9519732c0a in QDragManager::cancel(bool) () at kernel/qdnd_x11.cpp:1406
#35 0x00007f9519732c0a in QDragManager::cancel(bool) (this=0x19962e0, deleteSource=deleteSource@entry=false) at kernel/qdnd_x11.cpp:1407
#36 0x00007f95196bf34a in QDrag::~QDrag() (this=0x6de6bb0, __in_chrg=<optimized out>) at kernel/qdrag.cpp:132
#37 0x00007f95196bf369 in QDrag::~QDrag() (this=0x6de6bb0, __in_chrg=<optimized out>) at kernel/qdrag.cpp:133
#38 0x00007f951a548ae8 in QObjectPrivate::deleteChildren() (this=this@entry=0x47a1710) at kernel/qobject.cpp:1944
#39 0x00007f95196fa437 in QWidget::~QWidget() (this=0x7258330, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1679
#40 0x00007f95196fa749 in QWidget::~QWidget() (this=0x7258330, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1703
#41 0x00007f951a548ae8 in QObjectPrivate::deleteChildren() (this=this@entry=0x4ea1010) at kernel/qobject.cpp:1944
#42 0x00007f95196fa437 in QWidget::~QWidget() (this=0x31a31a0, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1679
#43 0x00007f9519ca0595 in QGraphicsView::~QGraphicsView() (this=0x31a31a0, __in_chrg=<optimized out>) at graphicsview/qgraphicsview.cpp:1158
#44 0x00007f9519ca05c9 in QGraphicsView::~QGraphicsView() (this=0x31a31a0, __in_chrg=<optimized out>) at graphicsview/qgraphicsview.cpp:1164
#45 0x00007f951dcb8ef4 in ControllerWindow::~ControllerWindow() (this=0x534f2a0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.11.20/plasma/desktop/shell/controllerwindow.cpp:107
#46 0x00007f951dcb8f49 in ControllerWindow::~ControllerWindow() (this=0x534f2a0, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.11.20/plasma/desktop/shell/controllerwindow.cpp:108
#47 0x00007f951a54a5d8 in QObject::event(QEvent*) (this=this@entry=0x534f2a0, e=e@entry=0x2c0ee00) at kernel/qobject.cpp:1212
#48 0x00007f95196fdc5b in QWidget::event(QEvent*) (this=0x534f2a0, event=0x2c0ee00) at kernel/qwidget.cpp:8859
#49 0x00007f95196ae76c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0x534f2a0, e=e@entry=0x2c0ee00) at kernel/qapplication.cpp:4565
#50 0x00007f95196b4cad in QApplication::notify(QObject*, QEvent*) (this=this@entry=0xb360b0, receiver=receiver@entry=0x534f2a0, e=e@entry=0x2c0ee00) at kernel/qapplication.cpp:4351
#51 0x00007f951b214e0a in KApplication::notify(QObject*, QEvent*) (this=0xb360b0, receiver=0x534f2a0, event=0x2c0ee00) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#52 0x00007f951a5322ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0xb360b0, receiver=receiver@entry=0x534f2a0, event=event@entry=0x2c0ee00) at kernel/qcoreapplication.cpp:953
#53 0x00007f951a53557d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (event=0x2c0ee00, receiver=0x534f2a0) at kernel/qcoreapplication.h:231
#54 0x00007f951a53557d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xa38860) at kernel/qcoreapplication.cpp:1577
#55 0x00007f951a535a23 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#56 0x00007f951a55f8fe in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) () at kernel/qcoreapplication.h:236
#57 0x00007f951a55f8fe in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0xb39e20) at kernel/qeventdispatcher_glib.cpp:300
#58 0x00007f9510aafa04 in g_main_context_dispatch (context=0xb3a5f0) at gmain.c:3111
#59 0x00007f9510aafa04 in g_main_context_dispatch (context=context@entry=0xb3a5f0) at gmain.c:3710
#60 0x00007f9510aafc48 in g_main_context_iterate (context=context@entry=0xb3a5f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#61 0x00007f9510aafcec in g_main_context_iteration (context=0xb3a5f0, may_block=1) at gmain.c:3842
#62 0x00007f951a55f0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0xa3e100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#63 0x00007f951974b676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#64 0x00007f951a530e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x51e8bb0, flags=...) at kernel/qeventloop.cpp:149
#65 0x00007f951a531165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x51e8bb0, flags=...) at kernel/qeventloop.cpp:204
#66 0x00007f951973503d in QDragManager::drag(QDrag*) (this=0x19962e0, o=o@entry=0x6de6bb0) at kernel/qdnd_x11.cpp:2028
#67 0x00007f95196bf5aa in QDrag::exec(QFlags<Qt::DropAction>, Qt::DropAction) (this=this@entry=0x6de6bb0, supportedActions=..., defaultDropAction=Qt::MoveAction) at kernel/qdrag.cpp:284
#68 0x00007f94f09392c8 in DeclarativeDragArea::mouseMoveEvent(QGraphicsSceneMouseEvent*) (this=0x48574a0, event=<optimized out>) at /usr/src/debug/kde-runtime-14.12.3/plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:233
#69 0x00007f94f0939381 in DeclarativeDragArea::sceneEventFilter(QGraphicsItem*, QEvent*) (this=0x48574a0, item=0x3b7d4b0, event=0x7fff4433b830) at /usr/src/debug/kde-runtime-14.12.3/plasma/declarativeimports/draganddrop/DeclarativeDragArea.cpp:245
#70 0x00007f9519c750d5 in QGraphicsScenePrivate::filterDescendantEvent(QGraphicsItem*, QEvent*) (this=this@entry=0xd58c10, item=item@entry=0x3b7d4b0, event=event@entry=0x7fff4433b830) at graphicsview/qgraphicsscene.cpp:1159
#71 0x00007f9519c7969e in QGraphicsScenePrivate::sendEvent(QGraphicsItem*, QEvent*) (this=0xd58c10, item=0x3b7d4b0, event=0x7fff4433b830) at graphicsview/qgraphicsscene.cpp:1211
#72 0x00007f9519c79b9f in QGraphicsScenePrivate::sendMouseEvent(QGraphicsSceneMouseEvent*) (this=0xd58c10, mouseEvent=0x7fff4433b830) at graphicsview/qgraphicsscene.cpp:1295
#73 0x00007f9519c82ea6 in QGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent*) (this=<optimized out>, mouseEvent=0x7fff4433b830) at graphicsview/qgraphicsscene.cpp:4102
#74 0x00007f9519c8ecec in QGraphicsScene::event(QEvent*) (this=0xd590e0, event=0x7fff4433b830) at graphicsview/qgraphicsscene.cpp:3451
#75 0x00007f95196ae76c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0xd590e0, e=e@entry=0x7fff4433b830) at kernel/qapplication.cpp:4565
#76 0x00007f95196b4cad in QApplication::notify(QObject*, QEvent*) (this=this@entry=0xb360b0, receiver=receiver@entry=0xd590e0, e=e@entry=0x7fff4433b830) at kernel/qapplication.cpp:4351
#77 0x00007f951b214e0a in KApplication::notify(QObject*, QEvent*) (this=0xb360b0, receiver=0xd590e0, event=0x7fff4433b830) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#78 0x00007f951a5322ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0xb360b0, receiver=0xd590e0, event=event@entry=0x7fff4433b830) at kernel/qcoreapplication.cpp:953
#79 0x00007f95196ad116 in qt_sendSpontaneousEvent(QObject*, QEvent*) (event=event@entry=0x7fff4433b830, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:234
#80 0x00007f95196ad116 in qt_sendSpontaneousEvent(QObject*, QEvent*) (receiver=<optimized out>, event=event@entry=0x7fff4433b830) at kernel/qapplication.cpp:5563
#81 0x00007f9519ca3ecc in QGraphicsViewPrivate::mouseMoveEventHandler(QMouseEvent*) (this=this@entry=0x4ea1010, event=event@entry=0x7fff4433be80) at graphicsview/qgraphicsview.cpp:646
#82 0x00007f9519ca4dda in QGraphicsView::mouseMoveEvent(QMouseEvent*) (this=0x31a31a0, event=0x7fff4433be80) at graphicsview/qgraphicsview.cpp:3276
#83 0x00007f95196fdd35 in QWidget::event(QEvent*) (this=this@entry=0x31a31a0, event=event@entry=0x7fff4433be80) at kernel/qwidget.cpp:8374
#84 0x00007f9519a9a5ee in QFrame::event(QEvent*) (this=0x31a31a0, e=0x7fff4433be80) at widgets/qframe.cpp:557
#85 0x00007f9519ca6429 in QGraphicsView::viewportEvent(QEvent*) (this=0x31a31a0, event=0x7fff4433be80) at graphicsview/qgraphicsview.cpp:2866
#86 0x00007f951a532416 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0x7258330, event=event@entry=0x7fff4433be80) at kernel/qcoreapplication.cpp:1063
#87 0x00007f95196ae74c in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=this@entry=0xb443c0, receiver=receiver@entry=0x7258330, e=e@entry=0x7fff4433be80) at kernel/qapplication.cpp:4561
#88 0x00007f95196b4dea in QApplication::notify(QObject*, QEvent*) (this=this@entry=0xb360b0, receiver=receiver@entry=0x7258330, e=e@entry=0x7fff4433be80) at kernel/qapplication.cpp:4108
#89 0x00007f951b214e0a in KApplication::notify(QObject*, QEvent*) (this=0xb360b0, receiver=0x7258330, event=0x7fff4433be80) at /usr/src/debug/kdelibs-4.14.9/kdeui/kernel/kapplication.cpp:311
#90 0x00007f951a5322ad in QCoreApplication::notifyInternal(QObject*, QEvent*) (this=0xb360b0, receiver=receiver@entry=0x7258330, event=event@entry=0x7fff4433be80) at kernel/qcoreapplication.cpp:953
#91 0x00007f95196b45e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#92 0x00007f95196b45e3 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) (receiver=receiver@entry=0x7258330, event=event@entry=0x7fff4433be80, alienWidget=alienWidget@entry=0x7258330, nativeWidget=nativeWidget@entry=0x534f2a0, buttonDown=buttonDown@entry=0x7f951a18e278 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#93 0x00007f9519725c9b in QETWidget::translateMouseEvent(_XEvent const*) (this=this@entry=0x534f2a0, event=event@entry=0x7fff4433c1f0) at kernel/qapplication_x11.cpp:4530
#94 0x00007f951972470c in QApplication::x11ProcessEvent(_XEvent*) (this=0xb360b0, event=event@entry=0x7fff4433c1f0) at kernel/qapplication_x11.cpp:3653
#95 0x00007f951974b5c2 in x11EventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0xb3ac70, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#96 0x00007f9510aafa04 in g_main_context_dispatch (context=0xb3a5f0) at gmain.c:3111
#97 0x00007f9510aafa04 in g_main_context_dispatch (context=context@entry=0xb3a5f0) at gmain.c:3710
#98 0x00007f9510aafc48 in g_main_context_iterate (context=context@entry=0xb3a5f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3781
#99 0x00007f9510aafcec in g_main_context_iteration (context=0xb3a5f0, may_block=1) at gmain.c:3842
#100 0x00007f951a55f0be in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0xa3e100, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#101 0x00007f951974b676 in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#102 0x00007f951a530e6f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff4433c5c0, flags=...) at kernel/qeventloop.cpp:149
#103 0x00007f951a531165 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fff4433c5c0, flags=...) at kernel/qeventloop.cpp:204
#104 0x00007f951a5365b9 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1225
#105 0x00007f95196acf3c in QApplication::exec() () at kernel/qapplication.cpp:3823
#106 0x00007f951dcc7b94 in kdemain(int, char**) (argc=1, argv=0x7fff4433c818) at /usr/src/debug/kde-workspace-4.11.20/plasma/desktop/shell/main.cpp:126
#107 0x00007f951d903b05 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, argv=0x7fff4433c818, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4433c808) at libc-start.c:285
#108 0x000000000040075e in _start () at ../sysdeps/x86_64/start.S:122

Reported using DrKonqi