Bug 281559

Version:           unspecified (using KDE 4.7.0) 
OS:                Linux

Plasma Desktop crashed at KDE logout:

Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb58d7710 (LWP 1837))]

Thread 2 (Thread 0xaab7bb70 (LWP 2302)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb614b69e in poll () from /lib/libc.so.6
#2  0xb5b5fc5b in g_poll () from /usr/lib/libglib-2.0.so.0
#3  0xb5b51106 in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb5b5149a in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0xb6f40537 in QEventDispatcherGlib::processEvents (this=0x88f7548, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0xb6f1119d in QEventLoop::processEvents (this=0xaab7b2b0, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6f113e1 in QEventLoop::exec (this=0xaab7b2b0, flags=...) at kernel/qeventloop.cpp:201
#8  0xb6e1451b in QThread::exec (this=0x893d8f0) at thread/qthread.cpp:492
#9  0xb6ef1ddd in QInotifyFileSystemWatcherEngine::run (this=0x893d8f0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6e173d3 in QThreadPrivate::start (arg=0x893d8f0) at thread/qthread_unix.cpp:320
#11 0xb6d9ad61 in start_thread () from /lib/libpthread.so.0
#12 0xb615686e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb58d7710 (LWP 1837)):
[KCrash Handler]
#7  0x45454545 in ?? ()
#8  0xb0ec5adf in TaskGroupItem::~TaskGroupItem (this=0x8d67b98, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.0/plasma/desktop/applets/tasks/taskgroupitem.cpp:82
#9  0xb0ec5bb2 in TaskGroupItem::~TaskGroupItem (this=0x8d67b98, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.7.0/plasma/desktop/applets/tasks/taskgroupitem.cpp:83
#10 0xb6f24ed3 in qDeleteInEventHandler (o=0x8d67b98) at kernel/qobject.cpp:3986
#11 0xb6f2a4c8 in QObject::event (this=0x8d67b98, e=0x8eb4810) at kernel/qobject.cpp:1200
#12 0xb6aef554 in QGraphicsWidget::event (this=0x8d67b98, event=0x8eb4810) at graphicsview/qgraphicswidget.cpp:1423
#13 0xb6433f04 in notify_helper (e=0x8eb4810, receiver=0x8d67b98, this=0x80f4c50) at kernel/qapplication.cpp:4462
#14 QApplicationPrivate::notify_helper (this=0x80f4c50, receiver=0x8d67b98, e=0x8eb4810) at kernel/qapplication.cpp:4434
#15 0xb6439292 in QApplication::notify (this=0x8eb4810, receiver=0x8d67b98, e=0x8eb4810) at kernel/qapplication.cpp:4209
#16 0xb7654681 in KApplication::notify (this=0x80ec278, receiver=0x8d67b98, event=0x8eb4810) at /usr/src/debug/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#17 0xb6f1217e in QCoreApplication::notifyInternal (this=0x80ec278, receiver=0x8d67b98, event=0x8eb4810) at kernel/qcoreapplication.cpp:731
#18 0xb6f15944 in sendEvent (event=<optimized out>, receiver=<optimized out>) at kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=52, data=0x805b568) at kernel/qcoreapplication.cpp:1372
#20 0xb6f15a8c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=52) at kernel/qcoreapplication.cpp:1265
#21 0xb6f15b6d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1015
#22 0xb6431d84 in QApplication::exec () at kernel/qapplication.cpp:3736
#23 0xb22fb7cb in kdemain (argc=1, argv=0x80cbe58) at /usr/src/debug/kde-workspace-4.7.0/plasma/desktop/shell/main.cpp:120
#24 0x0804fb8d in _start ()


Reproducible: Sometimes

Steps to Reproduce:
Close KDE session and sometimes, plasma crashes.

Actual Results:  
Sometimes plasma crashes at logout.

Expected Results:  
Ideally, plasma should never crash.

KDE 4.7.1 on OpenSUSE 12.1