Application that crashed: kbluetooth4
Version of the application: 0.3
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.30-8-generic i686
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
The crash report window showed up when installing packages after a "sudo apt-get upgrade"

 -- Backtrace:
Application: KBluetooth4 - The KDE4 Bluetooth Framework (kbluetooth4), signal: Segmentation fault
[KCrash Handler]
#6  0x07075674 in ?? ()
#7  0x00781ad6 in QDBusConnectionPrivate::activateCall (this=0x9ea04d0, object=0x9edbd78, flags=273, msg=@0x9ea1b60) at qdbusintegrator.cpp:753
#8  0x00782704 in QDBusConnectionPrivate::activateObject (this=0x9ea04d0, node=@0x9ea1b4c, msg=@0x9ea1b60, pathStartPos=18) at qdbusintegrator.cpp:1352
#9  0x007829ca in QDBusActivateObjectEvent::placeMetaCall (this=0x9ea1b20) at qdbusintegrator.cpp:1469
#10 0x05872eee in QObject::event (this=0xbffa55e0, e=0x9ea1b20) at kernel/qobject.cpp:1118
#11 0x0586243b in QCoreApplication::event (this=0xbffa55e0, e=0x9ea1b20) at kernel/qcoreapplication.cpp:1434
#12 0x08227746 in QApplication::event (this=0xbffa55e0, e=0x9ea1b20) at kernel/qapplication.cpp:2318
#13 0x08221c1c in QApplicationPrivate::notify_helper (this=0x9dcd700, receiver=0xbffa55e0, e=0x9ea1b20) at kernel/qapplication.cpp:4057
#14 0x082293f4 in QApplication::notify (this=0xbffa55e0, receiver=0xbffa55e0, e=0x9ea1b20) at kernel/qapplication.cpp:4022
#15 0x0050104a in KApplication::notify (this=0xbffa55e0, receiver=0xbffa55e0, event=0x9ea1b20) at ../../kdeui/kernel/kapplication.cpp:302
#16 0x05862b1b in QCoreApplication::notifyInternal (this=0xbffa55e0, receiver=0xbffa55e0, event=0x9ea1b20) at kernel/qcoreapplication.cpp:610
#17 0x058635e8 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9dad8b8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#18 0x058637bd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#19 0x0588e36f in postEventSourceDispatch (s=0x9dcf920) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#20 0x0130dad8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x01311070 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x013111a3 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x0588df9c in QEventDispatcherGlib::processEvents (this=0x9dc69c0, flags={i = 37}) at kernel/qeventdispatcher_glib.cpp:324
#24 0x082c3975 in QGuiEventDispatcherGlib::processEvents (this=0x9dc69c0, flags={i = 37}) at kernel/qguieventdispatcher_glib.cpp:202
#25 0x058610a9 in QEventLoop::processEvents (this=0xbffa454c, flags=) at kernel/qeventloop.cpp:149
#26 0x058614f2 in QEventLoop::exec (this=0xbffa454c, flags={i = 5}) at kernel/qeventloop.cpp:200
#27 0x00785a41 in QDBusConnectionPrivate::sendWithReply (this=0x9ed4860, message=@0xbffa46cc, sendMode=2, timeout=-1) at qdbusintegrator.cpp:1787
#28 0x0076f60b in QDBusConnection::call (this=0x9e9be64, message=@0x1, mode=166575480, timeout=-1) at qdbusconnection.cpp:516
#29 0x0078d3af in QDBusAbstractInterface::callWithArgumentList (this=0x9ef3750, mode=QDBus::BlockWithGui, method=@0xbffa4844, args=@0xbffa476c) at qdbusabstractinterface.cpp:402
#30 0x00790e4f in QDBusAbstractInterface::call (this=0x9ef3750, mode=QDBus::BlockWithGui, method=@0xbffa4844, arg1=@0xbffa482c, arg2=@0xbffa4820, arg3=@0xbffa4814, arg4=@0xbffa4808, 
    arg5=@0xbffa47fc, arg6=@0xbffa47f0, arg7=@0xbffa47e4, arg8=@0xbffa47d8) at qdbusabstractinterface.cpp:655
#31 0x08066ce3 in _start ()

Reported using DrKonqi