Version:            (using KDE 4.3.1)
OS:                Linux
Installed from:    Ubuntu Packages

After deleting a folder from a folder view widget the following crash report was displayed.

Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 5464)]

Thread 2 (Thread 0x7f68f5e75950 (LWP 5467)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f6915acfd19 in QWaitCondition::wait (this=0x25d82f0, mutex=0x25d82e8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f691495581c in QHostInfoAgent::run (this=0x25d82d0) at kernel/qhostinfo.cpp:260
#3  0x00007f6915aced35 in QThreadPrivate::start (arg=0x25d82d0) at thread/qthread_unix.cpp:188
#4  0x00007f69119c33ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f69125a7fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f6916092750 (LWP 5464)):
[KCrash Handler]
#5  0x00007f6913746d5f in QGraphicsScene::drawItems (this=<value optimized out>, painter=0x7fff1e0c8020, numItems=2, items=0x2ab8d30, options=0x3c5dd70, widget=0x3c105e0)
    at graphicsview/qgraphicsscene.cpp:5020
#6  0x00007f69137687b8 in QGraphicsView::paintEvent (this=0x3befd10, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3528
#7  0x00007f69131cfed6 in QWidget::event (this=0x3befd10, event=0x7fff1e0c87d0) at kernel/qwidget.cpp:7687
#8  0x00007f6913542f0b in QFrame::event (this=0x3befd10, e=0x7fff1e0c87d0) at widgets/qframe.cpp:559
#9  0x00007f691376730b in QGraphicsView::viewportEvent (this=0x3befd10, event=0x7fff1e0c87d0) at graphicsview/qgraphicsview.cpp:2919
#10 0x00007f6915bb79b8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x3c105e0, event=0x7fff1e0c87d0) at kernel/qcoreapplication.cpp:726
#11 0x00007f691317ef1c in QApplicationPrivate::notify_helper (this=0x1d887c0, receiver=0x3c105e0, e=0x7fff1e0c87d0) at kernel/qapplication.cpp:4052
#12 0x00007f691318718a in QApplication::notify (this=0x1d49950, receiver=0x3c105e0, e=0x7fff1e0c87d0) at kernel/qapplication.cpp:4021
#13 0x00007f6914291deb in KApplication::notify (this=0x1d49950, receiver=0x3c105e0, event=0x7fff1e0c87d0) at /build/buildd/kde4libs-4.3.1/kdeui/kernel/kapplication.cpp:302
#14 0x00007f6915bb86ac in QCoreApplication::notifyInternal (this=0x1d49950, receiver=0x3c105e0, event=0x7fff1e0c87d0) at kernel/qcoreapplication.cpp:610
#15 0x00007f69131d7125 in QWidgetPrivate::drawWidget (this=0x3c10610, pdev=0x3beeb48, rgn=@0x7fff1e0c8a00, offset=@0x7fff1e0c89f0, flags=4, sharedPainter=0x0, backingStore=0x3bef190)
    at kernel/qwidget.cpp:5079
#16 0x00007f69131d7897 in QWidgetPrivate::paintSiblingsRecursive (this=0x3c0f5c0, pdev=0x3beeb48, siblings=@0x3c0f5d8, index=2, rgn=@0x7fff1e0c8d10, offset=@0x7fff1e0c8d00, flags=4, 
    sharedPainter=0x0, backingStore=0x3bef190) at kernel/qwidget.cpp:5189
#17 0x00007f69131d6d97 in QWidgetPrivate::drawWidget (this=0x3c0f5c0, pdev=0x3beeb48, rgn=@0x7fff1e0c8d10, offset=@0x7fff1e0c8d00, flags=4, sharedPainter=0x0, backingStore=0x3bef190)
    at kernel/qwidget.cpp:5128
#18 0x00007f69131d7897 in QWidgetPrivate::paintSiblingsRecursive (this=0x374b480, pdev=0x3beeb48, siblings=@0x374b498, index=3, rgn=@0x7fff1e0c9180, offset=@0x3bef1d4, flags=4, sharedPainter=0x0, 
    backingStore=0x3bef190) at kernel/qwidget.cpp:5189
#19 0x00007f69131d6d97 in QWidgetPrivate::drawWidget (this=0x374b480, pdev=0x3beeb48, rgn=@0x7fff1e0c9180, offset=@0x3bef1d4, flags=4, sharedPainter=0x0, backingStore=0x3bef190)
    at kernel/qwidget.cpp:5128
#20 0x00007f6913351902 in QWidgetBackingStore::sync (this=0x3bef190) at painting/qbackingstore.cpp:1269
#21 0x00007f69131c8e00 in QWidgetPrivate::syncBackingStore (this=0x374b480) at kernel/qwidget.cpp:1603
#22 0x00007f69131cfd6d in QWidget::event (this=0x374b3b0, event=0x3bac710) at kernel/qwidget.cpp:7827
#23 0x00007f691317ef4d in QApplicationPrivate::notify_helper (this=0x1d887c0, receiver=0x374b3b0, e=0x3bac710) at kernel/qapplication.cpp:4056
#24 0x00007f691318718a in QApplication::notify (this=0x1d49950, receiver=0x374b3b0, e=0x3bac710) at kernel/qapplication.cpp:4021
#25 0x00007f6914291deb in KApplication::notify (this=0x1d49950, receiver=0x374b3b0, event=0x3bac710) at /build/buildd/kde4libs-4.3.1/kdeui/kernel/kapplication.cpp:302
#26 0x00007f6915bb86ac in QCoreApplication::notifyInternal (this=0x1d49950, receiver=0x374b3b0, event=0x3bac710) at kernel/qcoreapplication.cpp:610
#27 0x00007f6915bb931a in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1cfb320) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 0x00007f6915be1e03 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#29 0x00007f6911c1220a in IA__g_main_context_dispatch (context=0x1d8ad20) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#30 0x00007f6911c158e0 in g_main_context_iterate (context=0x1d8ad20, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#31 0x00007f6911c15a7c in IA__g_main_context_iteration (context=0x1d8ad20, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511
#32 0x00007f6915be1a8f in QEventDispatcherGlib::processEvents (this=0x1d882f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#33 0x00007f6913217bdf in QGuiEventDispatcherGlib::processEvents (this=0x7fff1e0c7b30, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007f6915bb6f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 504142864}) at kernel/qeventloop.cpp:149
#35 0x00007f6915bb7314 in QEventLoop::exec (this=0x7fff1e0c9c50, flags={i = 504142944}) at kernel/qeventloop.cpp:201
#36 0x00007f6915bb95e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0x00007f6909af83eb in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#38 0x0000000000407215 in launch (argc=1, _name=0x1d3cf68 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x1d3cf88 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:677
#39 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1169
#40 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1362
#41 0x0000000000408b26 in main (argc=2, argv=0x7fff1e0caaf8, envp=0x7fff1e0cab10) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1793