Application: KNotify (knotify4), signal SIGSEGV

Thread 1 (Thread 0xb689cb70 (LWP 3669)):
[KCrash Handler]
#6  0xb78f0414 in QObject::d_func (this=0x0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:113
#7  0xb79fd5ac in QMetaObject::activate (sender=0x0, m=0xb7d5c030, local_signal_index=4, argv=0xbf9f62cc) at kernel/qobject.cpp:3097
#8  0xb7d553b3 in Phonon::AudioOutputAdaptor::outputDeviceIndexChanged (this=0x0, _t1=0) at /home/jeremy/devel/kde4/build/kdesupport/phonon/phonon/moc_audiooutputadaptor_p.cpp:185
#9  0xb7d3e066 in Phonon::AudioOutputPrivate::handleAutomaticDeviceChange (this=0x999c320, device2=@0xbf9f63c4, type=Phonon::AudioOutputPrivate::FallbackChange)
    at /home/jeremy/devel/kde4/src/kdesupport/phonon/phonon/audiooutput.cpp:366
#10 0xb7d3f2fa in Phonon::AudioOutputPrivate::setupBackendObject (this=0x999c320) at /home/jeremy/devel/kde4/src/kdesupport/phonon/phonon/audiooutput.cpp:269
#11 0xb7d3d9d5 in Phonon::AudioOutputPrivate::init (this=0x999c320, c=Phonon::NotificationCategory) at /home/jeremy/devel/kde4/src/kdesupport/phonon/phonon/audiooutput.cpp:85
#12 0x08052994 in PlayerPool::getPlayer (this=0x99a6624) at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/notifybysound.cpp:59
#13 0x0805307e in NotifyBySound::notify (this=0x99a6430, eventId=1, config=0x99c6438) at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/notifybysound.cpp:237
#14 0x0804e15c in KNotify::emitEvent (this=0xbf9f70fc, e=0x99c6430) at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/knotify.cpp:176
#15 0x0804e593 in KNotify::event (this=0xbf9f70fc, event=@0x99bbdf8, appname=@0x99bc330, contexts=@0xbf9f6638, text=@0x9973ce8, pixmap=@0xbf9f6624, actions=@0x99bad90, winId=0)
    at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/knotify.cpp:126
#16 0x0804e986 in KNotifyAdaptor::event (this=0x999e380, event=@0x99bbdf8, fromApp=@0x99bc330, contexts=@0x99bbd40, text=@0x9973ce8, image=@0x99746c8, actions=@0x99bad90, winId=<value optimized out>)
    at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/knotify.cpp:235
#17 0x0804fd35 in KNotifyAdaptor::qt_metacall (this=0x999e380, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf9f66c0) at /home/jeremy/devel/kde4/build/kdebase/runtime/knotify/knotify.moc:208
#18 0xb7ab30d8 in QDBusConnectionPrivate::deliverCall (this=0x9936888, object=0x999e380, msg=@0x99df598, metaTypes=@0xbf9f67e0, slotIdx=8) at qdbusintegrator.cpp:849
#19 0xb7ab3bd1 in QDBusConnectionPrivate::activateCall (this=0x9936888, object=0x999e380, flags=273, msg=@0x99df598) at qdbusintegrator.cpp:754
#20 0xb7ab471c in QDBusConnectionPrivate::activateObject (this=0x9936888, node=@0x99df584, msg=@0x99df598, pathStartPos=7) at qdbusintegrator.cpp:1283
#21 0xb7ab4999 in QDBusActivateObjectEvent::placeMetaCall (this=0x99df558) at qdbusintegrator.cpp:1400
#22 0xb79fb4f4 in QObject::event (this=0xbf9f70fc, e=0x99df558) at kernel/qobject.cpp:1152
#23 0xb7127501 in QApplicationPrivate::notify_helper (this=0x9943340, receiver=0xbf9f70fc, e=0x99df558) at kernel/qapplication.cpp:3803
#24 0xb7127816 in QApplication::notify (this=0xbf9f7110, receiver=0xbf9f70fc, e=0x99df558) at kernel/qapplication.cpp:3393
#25 0xb7f29c2d in KApplication::notify (this=0xbf9f7110, receiver=0xbf9f70fc, event=0x99df558) at /home/jeremy/devel/kde4/src/kdelibs/kdeui/kernel/kapplication.cpp:307
#26 0xb79e8a7f in QCoreApplication::notifyInternal (this=0xbf9f7110, receiver=0xbf9f70fc, event=0x99df558) at kernel/qcoreapplication.cpp:583
#27 0xb79ec601 in QCoreApplication::sendEvent (receiver=0xbf9f70fc, event=0x99df558) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:209
#28 0xb79e8f9f in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9912688) at kernel/qcoreapplication.cpp:1195
#29 0xb79e915b in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1091
#30 0xb7a1811e in QCoreApplication::sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:214
#31 0xb7a17330 in postEventSourceDispatch (s=0x9945518) at kernel/qeventdispatcher_glib.cpp:205
#32 0xb6a37311 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb6a3a9a3 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#34 0xb6a3ab61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0xb7a1674a in QEventDispatcherGlib::processEvents (this=0x991a790, flags={i = -1080070168}) at kernel/qeventdispatcher_glib.cpp:319
#36 0xb71cc3b0 in QGuiEventDispatcherGlib::processEvents (this=0x991a790, flags={i = -1080070120}) at kernel/qguieventdispatcher_glib.cpp:198
#37 0xb79e5aa0 in QEventLoop::processEvents (this=0xbf9f7090, flags={i = -1080070060}) at kernel/qeventloop.cpp:143
#38 0xb79e5cdd in QEventLoop::exec (this=0xbf9f7090, flags={i = -1080069992}) at kernel/qeventloop.cpp:190
#39 0xb79e927b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#40 0xb712721a in QApplication::exec () at kernel/qapplication.cpp:3331
#41 0x0804d5e7 in main (argc=1, argv=0xbf9f7264) at /home/jeremy/devel/kde4/src/kdebase/runtime/knotify/main.cpp:73