Application: umbrello (2.23.0-22682b2)
KDE Platform Version: 4.14.33 (Compiled from sources)
Qt Version: 4.8.7
Operating System: Linux 3.12.62-55-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
1. open appended file
2. open component diagram
3. delete component 'webserver'
4. click on any object in the scene

The crash can be reproduced every time.

-- Backtrace:
Application: Umbrello UML Modeller (umbrello), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  QGraphicsItem::parentItem (this=this@entry=0xffff00000001) at graphicsview/qgraphicsitem.cpp:1576
#7  0x00007fde2d4b313b in QGraphicsItem::topLevelItem (this=<optimized out>) at graphicsview/qgraphicsitem.cpp:1589
#8  0x00007fde2d4ff5d3 in QGraphicsSceneFindItemBspTreeVisitor::visit (this=0x2afd070, items=0x2c18da0) at graphicsview/qgraphicsscene_bsp.cpp:80
#9  0x00007fde2d4fe482 in QGraphicsSceneBspTree::climbTree (this=0x2c1df78, visitor=0x2afd070, rect=..., index=<optimized out>) at graphicsview/qgraphicsscene_bsp.cpp:261
#10 0x00007fde2d4fe482 in QGraphicsSceneBspTree::climbTree (this=0x2c1df78, visitor=0x2afd070, rect=..., index=<optimized out>) at graphicsview/qgraphicsscene_bsp.cpp:261
#11 0x00007fde2d4fe4de in QGraphicsSceneBspTree::climbTree (this=0x2c1df78, visitor=0x2afd070, rect=..., index=<optimized out>) at graphicsview/qgraphicsscene_bsp.cpp:252
#12 0x00007fde2d4feb8f in QGraphicsSceneBspTree::items (this=this@entry=0x2c1df78, rect=..., onlyTopLevelItems=onlyTopLevelItems@entry=true) at graphicsview/qgraphicsscene_bsp.cpp:154
#13 0x00007fde2d501860 in QGraphicsSceneBspTreeIndexPrivate::estimateItems (this=0x2c1ded0, rect=..., order=Qt::AscendingOrder, onlyTopLevelItems=onlyTopLevelItems@entry=true) at graphicsview/qgraphicsscenebsptreeindex.cpp:387
#14 0x00007fde2d5019f3 in QGraphicsSceneBspTreeIndex::estimateTopLevelItems (this=<optimized out>, rect=..., order=<optimized out>) at graphicsview/qgraphicsscenebsptreeindex.cpp:540
#15 0x00007fde2d504ba6 in items_helper (order=Qt::DescendingOrder, mode=Qt::IntersectsItemShape, viewTransform=..., items=0x7ffcb9bb7a90, intersector=0x2ad9b20, rect=..., this=0x2c1ded0) at graphicsview/qgraphicssceneindex_p.h:157
#16 QGraphicsSceneIndex::items (this=<optimized out>, pos=..., mode=mode@entry=Qt::IntersectsItemShape, order=order@entry=Qt::DescendingOrder, deviceTransform=...) at graphicsview/qgraphicssceneindex.cpp:423
#17 0x00007fde2d4dfaac in QGraphicsScene::items (this=<optimized out>, pos=...) at graphicsview/qgraphicsscene.cpp:1976
#18 0x00007fde2d4e0ec7 in QGraphicsScene::itemAt (this=<optimized out>, position=...) at graphicsview/qgraphicsscene.cpp:2211
#19 0x0000000000479cc9 in UMLScene::widgetAt (this=<optimized out>, p=...) at /home/ralf.habacker/src/umbrello-17.08/umbrello/umlscene.cpp:978
#20 0x0000000000674e9d in ToolBarState::setCurrentElement (this=0x2a57b00) at /home/ralf.habacker/src/umbrello-17.08/umbrello/toolbarstate.cpp:303
#21 0x00000000006744fc in ToolBarState::mousePress (this=0x2a57b00, ome=<optimized out>) at /home/ralf.habacker/src/umbrello-17.08/umbrello/toolbarstate.cpp:90
#22 0x000000000047eed0 in UMLScene::mousePressEvent (this=0x2c1d910, event=0x7ffcb9bb7e70) at /home/ralf.habacker/src/umbrello-17.08/umbrello/umlscene.cpp:852
#23 0x00007fde2d4f95c0 in QGraphicsScene::event (this=0x2c1d910, event=0x7ffcb9bb7e70) at graphicsview/qgraphicsscene.cpp:3455
#24 0x00007fde2cf12d9c in QApplicationPrivate::notify_helper (this=this@entry=0x22227a0, receiver=receiver@entry=0x2c1d910, e=e@entry=0x7ffcb9bb7e70) at kernel/qapplication.cpp:4565
#25 0x00007fde2cf1931d in QApplication::notify (this=this@entry=0x7ffcb9bb8c90, receiver=receiver@entry=0x2c1d910, e=e@entry=0x7ffcb9bb7e70) at kernel/qapplication.cpp:4351
#26 0x00007fde2ea3389a in KApplication::notify (this=0x7ffcb9bb8c90, receiver=0x2c1d910, event=0x7ffcb9bb7e70) at /usr/src/debug/kdelibs-4.14.33/kdeui/kernel/kapplication.cpp:311
#27 0x00007fde2c9cbe6d in QCoreApplication::notifyInternal (this=0x7ffcb9bb8c90, receiver=0x2c1d910, event=event@entry=0x7ffcb9bb7e70) at kernel/qcoreapplication.cpp:955
#28 0x00007fde2cf11736 in sendSpontaneousEvent (event=event@entry=0x7ffcb9bb7e70, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:234
#29 qt_sendSpontaneousEvent (receiver=<optimized out>, event=event@entry=0x7ffcb9bb7e70) at kernel/qapplication.cpp:5563
#30 0x00007fde2d50ff9f in QGraphicsView::mousePressEvent (this=this@entry=0x2c196a0, event=event@entry=0x7ffcb9bb8450) at graphicsview/qgraphicsview.cpp:3164
#31 0x000000000048a683 in UMLView::mousePressEvent (this=0x2c196a0, event=0x7ffcb9bb8450) at /home/ralf.habacker/src/umbrello-17.08/umbrello/umlview.cpp:206
#32 0x00007fde2cf652c1 in QWidget::event (this=this@entry=0x2c196a0, event=event@entry=0x7ffcb9bb8450) at kernel/qwidget.cpp:8385
#33 0x00007fde2d303b6e in QFrame::event (this=0x2c196a0, e=0x7ffcb9bb8450) at widgets/qframe.cpp:557
#34 0x00007fde2d510cf9 in QGraphicsView::viewportEvent (this=0x2c196a0, event=0x7ffcb9bb8450) at graphicsview/qgraphicsview.cpp:2866
#35 0x00007fde2c9cbfd6 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=this@entry=0x22227a0, receiver=receiver@entry=0x2c24ac0, event=event@entry=0x7ffcb9bb8450) at kernel/qcoreapplication.cpp:1065
#36 0x00007fde2cf12d7c in QApplicationPrivate::notify_helper (this=this@entry=0x22227a0, receiver=receiver@entry=0x2c24ac0, e=e@entry=0x7ffcb9bb8450) at kernel/qapplication.cpp:4561
#37 0x00007fde2cf1945a in QApplication::notify (this=this@entry=0x7ffcb9bb8c90, receiver=receiver@entry=0x2c24ac0, e=e@entry=0x7ffcb9bb8450) at kernel/qapplication.cpp:4108
#38 0x00007fde2ea3389a in KApplication::notify (this=0x7ffcb9bb8c90, receiver=0x2c24ac0, event=0x7ffcb9bb8450) at /usr/src/debug/kdelibs-4.14.33/kdeui/kernel/kapplication.cpp:311
#39 0x00007fde2c9cbe6d in QCoreApplication::notifyInternal (this=0x7ffcb9bb8c90, receiver=receiver@entry=0x2c24ac0, event=event@entry=0x7ffcb9bb8450) at kernel/qcoreapplication.cpp:955
#40 0x00007fde2cf18c53 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#41 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x2c24ac0, event=event@entry=0x7ffcb9bb8450, alienWidget=alienWidget@entry=0x2c24ac0, nativeWidget=nativeWidget@entry=0x28beab0, buttonDown=buttonDown@entry=0x7fde2d9fa2e8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3173
#42 0x00007fde2cf8d5cb in QETWidget::translateMouseEvent (this=this@entry=0x28beab0, event=event@entry=0x7ffcb9bb87c0) at kernel/qapplication_x11.cpp:4536
#43 0x00007fde2cf8c03c in QApplication::x11ProcessEvent (this=0x7ffcb9bb8c90, event=event@entry=0x7ffcb9bb87c0) at kernel/qapplication_x11.cpp:3653
#44 0x00007fde2cfb2ef2 in x11EventSourceDispatch (s=0x22142b0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#45 0x00007fde29a0c316 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#46 0x00007fde29a0c668 in ?? () from /usr/lib64/libglib-2.0.so.0
#47 0x00007fde29a0c70c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#48 0x00007fde2c9f8d4e in QEventDispatcherGlib::processEvents (this=0x213e700, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#49 0x00007fde2cfb2fa6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007fde2c9caa3f in QEventLoop::processEvents (this=this@entry=0x7ffcb9bb8ba0, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007fde2c9cad35 in QEventLoop::exec (this=this@entry=0x7ffcb9bb8ba0, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007fde2c9d01bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#53 0x00007fde2cf1155c in QApplication::exec () at kernel/qapplication.cpp:3823
#54 0x000000000043ffe5 in main (argc=<optimized out>, argv=<optimized out>) at /home/ralf.habacker/src/umbrello-17.08/umbrello/main.cpp:248

Reported using DrKonqi