Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.00 (KDE 4.4.0)
Qt Version: 4.6.2
Operating System: Linux 2.6.31.12-174.2.22.fc12.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
i deleted top panel and try to add a new one.                                                                                                                                                         

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#5  0x00007fa945946fe4 in QGraphicsScene::addItem (this=0x12c99e0, item=0x1c26f50) at graphicsview/qgraphicsscene.cpp:2596
#6  0x00007fa947cf49d7 in Plasma::CoronaPrivate::addContainment(QString const&, QList<QVariant> const&, unsigned int, bool) () from /usr/lib64/libplasma.so.3
#7  0x00007fa948de27f9 in DesktopCorona::addPanel (this=0x12c99e0, plugin=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.4.0/plasma/desktop/shell/desktopcorona.cpp:527
#8  0x00007fa948de3494 in DesktopCorona::addPanel (this=0x12c99e0) at /usr/src/debug/kdebase-workspace-4.4.0/plasma/desktop/shell/desktopcorona.cpp:513
#9  0x00007fa948de7100 in DesktopCorona::qt_metacall (this=0x12c99e0, _c=InvokeMetaMethod, _id=1, _a=0x7fff4fa04760)
    at /usr/src/debug/kdebase-workspace-4.4.0/x86_64-redhat-linux-gnu/plasma/desktop/shell/desktopcorona.moc:93
#10 0x00007fa944c702af in QMetaObject::activate (sender=0x1660b40, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff4fa04760) at kernel/qobject.cpp:3293
#11 0x00007fa945381b52 in QAction::triggered (this=<value optimized out>, _t1=false) at .moc/release-shared/moc_qaction.cpp:263
#12 0x00007fa94538328b in QAction::activate (this=0x1660b40, event=<value optimized out>) at kernel/qaction.cpp:1255
#13 0x00007fa945785e45 in QMenuPrivate::activateCausedStack (this=<value optimized out>, causedStack=..., action=0x1660b40, action_e=Trigger, self=true) at widgets/qmenu.cpp:1011
#14 0x00007fa94578b5fa in QMenuPrivate::activateAction (this=0x1c05310, action=0x1660b40, action_e=Trigger, self=<value optimized out>) at widgets/qmenu.cpp:1103
#15 0x00007fa9469cec8e in KMenu::mouseReleaseEvent (this=0x7fff4fa06060, e=<value optimized out>) at /usr/src/debug/kdelibs-4.4.0/kdeui/widgets/kmenu.cpp:471
#16 0x00007fa9453d1b3a in QWidget::event (this=0x7fff4fa06060, event=0x7fff4fa053b0) at kernel/qwidget.cpp:7998
#17 0x00007fa94578cbab in QMenu::event (this=0x7fff4fa06060, e=0x7fff4fa053b0) at widgets/qmenu.cpp:2414
#18 0x00007fa9453869dc in QApplicationPrivate::notify_helper (this=0x12d3910, receiver=0x7fff4fa06060, e=0x7fff4fa053b0) at kernel/qapplication.cpp:4300
#19 0x00007fa94538d27d in QApplication::notify (this=<value optimized out>, receiver=0x7fff4fa06060, e=0x7fff4fa053b0) at kernel/qapplication.cpp:3865
#20 0x00007fa9469057a6 in KApplication::notify (this=0x12c0790, receiver=0x7fff4fa06060, event=0x7fff4fa053b0) at /usr/src/debug/kdelibs-4.4.0/kdeui/kernel/kapplication.cpp:302
#21 0x00007fa944c5d74c in QCoreApplication::notifyInternal (this=0x12c0790, receiver=0x7fff4fa06060, event=0x7fff4fa053b0) at kernel/qcoreapplication.cpp:704
#22 0x00007fa94538c46e in sendEvent (receiver=0x7fff4fa06060, event=0x7fff4fa053b0, alienWidget=0x0, nativeWidget=0x7fff4fa06060, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:215
#23 QApplicationPrivate::sendMouseEvent (receiver=0x7fff4fa06060, event=0x7fff4fa053b0, alienWidget=0x0, nativeWidget=0x7fff4fa06060, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2965
#24 0x00007fa9453fe845 in QETWidget::translateMouseEvent (this=0x7fff4fa06060, event=<value optimized out>) at kernel/qapplication_x11.cpp:4302
#25 0x00007fa9453fd128 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff4fa05cd0) at kernel/qapplication_x11.cpp:3501
#26 0x00007fa945425d52 in x11EventSourceDispatch (s=0x12d6f90, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#27 0x00000038f843920e in g_main_dispatch (context=0x12d6120) at gmain.c:1960
#28 IA__g_main_context_dispatch (context=0x12d6120) at gmain.c:2513
#29 0x00000038f843cbf8 in g_main_context_iterate (context=0x12d6120, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#30 0x00000038f843cd1a in IA__g_main_context_iteration (context=0x12d6120, may_block=1) at gmain.c:2654
#31 0x00007fa944c83063 in QEventDispatcherGlib::processEvents (this=0x12a8510, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#32 0x00007fa945425a1e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007fa944c5c192 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007fa944c5c45c in QEventLoop::exec (this=0x7fff4fa06000, flags=...) at kernel/qeventloop.cpp:201
#35 0x00007fa945788d35 in QMenu::exec (this=0x7fff4fa06060, p=<value optimized out>, action=0x0) at widgets/qmenu.cpp:2063
#36 0x00007fa92cacc68e in ContextMenu::contextEvent (this=0x1720b10, event=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.4.0/plasma/generic/containmentactions/contextmenu/menu.cpp:145
#37 0x00007fa947ce155b in Plasma::Containment::mousePressEvent (this=<value optimized out>, event=0x7fff4fa06bb0) at /usr/src/debug/kdelibs-4.4.0/plasma/containment.cpp:576
#38 0x00007fa94591f49b in QGraphicsItem::sceneEvent (this=0x170d530, event=0x7fff4fa06bb0) at graphicsview/qgraphicsitem.cpp:6496
#39 0x00007fa945935f98 in QGraphicsScenePrivate::sendMouseEvent (this=0x13ca6a0, mouseEvent=0x7fff4fa06bb0) at graphicsview/qgraphicsscene.cpp:1255
#40 0x00007fa945948919 in QGraphicsScenePrivate::mousePressEventHandler (this=0x13ca6a0, mouseEvent=0x7fff4fa06bb0) at graphicsview/qgraphicsscene.cpp:1378
#41 0x00007fa945948e74 in QGraphicsScene::mousePressEvent (this=<value optimized out>, mouseEvent=0x7fff4fa06bb0) at graphicsview/qgraphicsscene.cpp:4003
#42 0x00007fa94594c14f in QGraphicsScene::event (this=0x12c99e0, event=0x7fff4fa06bb0) at graphicsview/qgraphicsscene.cpp:3395
#43 0x00007fa9453869dc in QApplicationPrivate::notify_helper (this=0x12d3910, receiver=0x12c99e0, e=0x7fff4fa06bb0) at kernel/qapplication.cpp:4300
#44 0x00007fa94538caab in QApplication::notify (this=<value optimized out>, receiver=0x12c99e0, e=0x7fff4fa06bb0) at kernel/qapplication.cpp:4183
#45 0x00007fa9469057a6 in KApplication::notify (this=0x12c0790, receiver=0x12c99e0, event=0x7fff4fa06bb0) at /usr/src/debug/kdelibs-4.4.0/kdeui/kernel/kapplication.cpp:302
#46 0x00007fa944c5d74c in QCoreApplication::notifyInternal (this=0x12c0790, receiver=0x12c99e0, event=0x7fff4fa06bb0) at kernel/qcoreapplication.cpp:704
#47 0x00007fa94596650f in QGraphicsView::mousePressEvent (this=0x1b98870, event=0x7fff4fa075d0) at graphicsview/qgraphicsview.cpp:3085
#48 0x00007fa9453d1b21 in QWidget::event (this=0x1b98870, event=0x7fff4fa075d0) at kernel/qwidget.cpp:7994
#49 0x00007fa94574c646 in QFrame::event (this=0x1b98870, e=0x7fff4fa075d0) at widgets/qframe.cpp:557
#50 0x00007fa945961ebb in QGraphicsView::viewportEvent (this=0x1b98870, event=0x7fff4fa075d0) at graphicsview/qgraphicsview.cpp:2787
#51 0x00007fa944c5cb67 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1b9e970, event=0x7fff4fa075d0) at kernel/qcoreapplication.cpp:819
#52 0x00007fa9453869ac in QApplicationPrivate::notify_helper (this=0x12d3910, receiver=0x1b9e970, e=0x7fff4fa075d0) at kernel/qapplication.cpp:4296
#53 0x00007fa94538d27d in QApplication::notify (this=<value optimized out>, receiver=0x1b9e970, e=0x7fff4fa075d0) at kernel/qapplication.cpp:3865
#54 0x00007fa9469057a6 in KApplication::notify (this=0x12c0790, receiver=0x1b9e970, event=0x7fff4fa075d0) at /usr/src/debug/kdelibs-4.4.0/kdeui/kernel/kapplication.cpp:302
#55 0x00007fa944c5d74c in QCoreApplication::notifyInternal (this=0x12c0790, receiver=0x1b9e970, event=0x7fff4fa075d0) at kernel/qcoreapplication.cpp:704
#56 0x00007fa94538c46e in sendEvent (receiver=0x1b9e970, event=0x7fff4fa075d0, alienWidget=0x1b9e970, nativeWidget=0x1b98870, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:215
#57 QApplicationPrivate::sendMouseEvent (receiver=0x1b9e970, event=0x7fff4fa075d0, alienWidget=0x1b9e970, nativeWidget=0x1b98870, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>, spontaneous=true) at kernel/qapplication.cpp:2965
#58 0x00007fa9453fe405 in QETWidget::translateMouseEvent (this=0x1b98870, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#59 0x00007fa9453fd128 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff4fa07ef0) at kernel/qapplication_x11.cpp:3501
#60 0x00007fa945425d52 in x11EventSourceDispatch (s=0x12d6f90, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#61 0x00000038f843920e in g_main_dispatch (context=0x12d6120) at gmain.c:1960
#62 IA__g_main_context_dispatch (context=0x12d6120) at gmain.c:2513
#63 0x00000038f843cbf8 in g_main_context_iterate (context=0x12d6120, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#64 0x00000038f843cd1a in IA__g_main_context_iteration (context=0x12d6120, may_block=1) at gmain.c:2654
#65 0x00007fa944c83063 in QEventDispatcherGlib::processEvents (this=0x12a8510, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#66 0x00007fa945425a1e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#67 0x00007fa944c5c192 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#68 0x00007fa944c5c45c in QEventLoop::exec (this=0x7fff4fa08220, flags=...) at kernel/qeventloop.cpp:201
#69 0x00007fa944c5e749 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#70 0x00007fa948dece52 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.4.0/plasma/desktop/shell/main.cpp:112
#71 0x00000038f641eb1d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=<value optimized out>) at libc-start.c:226
#72 0x00000000004007c9 in _start ()

Reported using DrKonqi