Version:           kde from kubuntu 8.10 (using KDE 4.1.1)
Compiler:          apt-get dist-upgrade of kubuntu 8.10 
OS:                Linux
Installed from:    Ubuntu Packages

I don't see the "11" mentioned in existing bugs, other than that it is the same as the "crash on first update"  Below is the trace from the KDE crash handler
Application: KDE Daemon (kded4), signal SIGSEGV
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[Thread debugging using libthread_db enabled]
[New Thread 0xb610c8d0 (LWP 5133)]
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[KCrash handler]
#6  0xb742d2a4 in QString::operator== () from /usr/lib/libQtCore.so.4
#7  0xb7c519ed in ?? () from /usr/lib/libkio.so.5
#8  0xb7c51c9b in ?? () from /usr/lib/libkio.so.5
#9  0xb74f0a60 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#10 0xb74f17e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#11 0xb752b633 in QSocketNotifier::activated () from /usr/lib/libQtCore.so.4
#12 0xb74f6637 in QSocketNotifier::event () from /usr/lib/libQtCore.so.4
#13 0xb6a6e8ec in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#14 0xb6a7676e in QApplication::notify () from /usr/lib/libQtGui.so.4
#15 0xb79aa72d in KApplication::~KApplication () from /usr/lib/libkdeui.so.5
#16 0xbf860160 in ?? ()
#17 0xb74dbe61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#18 0xb750670a in ?? () from /usr/lib/libQtCore.so.4
#19 0xb649d6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#20 0xb64a0da3 in ?? () from /usr/lib/libglib-2.0.so.0
#21 0xb64a0f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#22 0xb7506478 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#23 0xb6b08ee5 in ?? () from /usr/lib/libQtGui.so.4
#24 0xb74da52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#25 0xb74da6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#26 0xb74dcda5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#27 0xb6a6e767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#28 0xb7f2d0a6 in kdemain () from /usr/lib/libkdeinit4_kded4.so
#29 0x080485a2 in _start ()
#0  0xb7f5e430 in __kernel_vsyscall ()