Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1238825280 (LWP 13138)]
[KCrash handler]
#6  0xb7ee874b in Plasma::LayoutItem::unsetManagingLayout (this=0x0, 
    layout=0x8115948)
    at /home/kde4-devel/kde/src/KDE/kdebase/workspace/libs/plasma/layouts/layoutitem.cpp:129
#7  0xb7ee1fcd in Plasma::FreeLayout::removeItem (this=0x8115948, item=0x0)
    at /home/kde4-devel/kde/src/KDE/kdebase/workspace/libs/plasma/layouts/freelayout.cpp:65
#8  0xb7f07318 in Plasma::Widget::itemChange (this=0x80fa240, 
    change=QGraphicsItem::ItemChildRemovedChange, value=@0xbfe1e8e4)
    at /home/kde4-devel/kde/src/KDE/kdebase/workspace/libs/plasma/widgets/widget.cpp:470
#9  0xb7ea91a5 in Plasma::Applet::itemChange (this=0x80fa240, 
    change=QGraphicsItem::ItemChildRemovedChange, value=@0xbfe1e8e4)
    at /home/kde4-devel/kde/src/KDE/kdebase/workspace/libs/plasma/applet.cpp:1255
#10 0xb718ee8d in ~QGraphicsItem (this=0x8715930)
    at graphicsview/qgraphicsitem.cpp:685
#11 0xb7ec2917 in ~AppletHandle (this=0x8715928)
    at /home/kde4-devel/kde/src/KDE/kdebase/workspace/libs/plasma/applethandle.cpp:103
#12 0xb746181d in QObject::event (this=0x8715928, e=0x8270328)
    at kernel/qobject.cpp:1116
#13 0xb6c2befd in QApplicationPrivate::notify_helper (this=0x807a670, 
    receiver=0x8715928, e=0x8270328) at kernel/qapplication.cpp:3558
#14 0xb6c2c1fe in QApplication::notify (this=0x8060820, receiver=0x8715928, 
    e=0x8270328) at kernel/qapplication.cpp:3117
#15 0xb79d347b in KApplication::notify (this=0x8060820, receiver=0x8715928, 
    event=0x8270328)
    at /home/kde4-devel/kde/src/KDE/kdelibs/kdeui/kernel/kapplication.cpp:319
#16 0xb744f3c6 in QCoreApplication::notifyInternal (this=0x8060820, 
    receiver=0x8715928, event=0x8270328) at kernel/qcoreapplication.cpp:532
#17 0xb745278f in QCoreApplication::sendEvent (receiver=0x8715928, 
    event=0x8270328)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:202
#18 0xb744f89d in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, 
    event_type=0, data=0x804bf50) at kernel/qcoreapplication.cpp:1115
#19 0xb744f9f3 in QCoreApplication::sendPostedEvents (receiver=0x0, 
    event_type=-1) at kernel/qcoreapplication.cpp:1003
#20 0xb7478e19 in postEventSourceDispatch (s=0x807d418)
    at kernel/qeventdispatcher_glib.cpp:209
#21 0xb644d11c in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0xb645055f in ?? () from /usr/lib/libglib-2.0.so.0
#23 0x0807c898 in ?? ()
#24 0x00000000 in ?? ()
#0  0xffffe410 in __kernel_vsyscall ()