Application: systemsettings (1.0)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-22-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
The system was very sluggish during the time due to a video being displayed and composition had been auto-deactivated (apparently). 

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Systeminställningar (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77ef710 (LWP 6157))]

Thread 2 (Thread 0xb6234b70 (LWP 6158)):
#0  0x00bace16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x050816fb in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0x05086825 in QTimerInfoList::updateCurrentTime (this=0xb5900734) at kernel/qeventdispatcher_unix.cpp:340
#3  0x0508686a in QTimerInfoList::timerWait (this=0xb5900734, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0x05084818 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xb62340cc) at kernel/qeventdispatcher_glib.cpp:136
#5  0x050848a5 in timerSourcePrepare (source=0x0, timeout=0xbb0ff4) at kernel/qeventdispatcher_glib.cpp:169
#6  0x01e14aca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0x01e14ee9 in ?? () from /lib/libglib-2.0.so.0
#8  0x01e154b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0x0508460f in QEventDispatcherGlib::processEvents (this=0x9f7f658, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#10 0x05057059 in QEventLoop::processEvents (this=0xb6234290, flags=) at kernel/qeventloop.cpp:149
#11 0x050574aa in QEventLoop::exec (this=0xb6234290, flags=...) at kernel/qeventloop.cpp:201
#12 0x04f535a8 in QThread::exec (this=0x9fd2400) at thread/qthread.cpp:487
#13 0x05036c1b in QInotifyFileSystemWatcherEngine::run (this=0x9fd2400) at io/qfilesystemwatcher_inotify.cpp:248
#14 0x04f5632e in QThreadPrivate::start (arg=0x9fd2400) at thread/qthread_unix.cpp:248
#15 0x00b9596e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0x03a8ea4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb77ef710 (LWP 6157)):
[KCrash Handler]
#6  0x04cc3e5d in KKameraConfig::populateDeviceListView (this=0xa3ebfb8) at ../../../kamera/kcontrol/kamera.cpp:178
#7  0x04cc70a3 in KKameraConfig::load (this=0xa3ebfb8) at ../../../kamera/kcontrol/kamera.cpp:260
#8  0x003b62f6 in KCModule::qt_metacall (this=0xa3ebfb8, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0x9bc8878) at ./kcmodule.moc:89
#9  0x04cc80ba in KKameraConfig::qt_metacall (this=0xa3ebfb8, _c=QMetaObject::InvokeMetaMethod, _id=30, _a=0x9bc8878) at ./kamera.moc:83
#10 0x0505dc9a in QMetaObject::metacall (object=0xa3ebfb8, cl=171884472, idx=30, argv=0x9bc8878) at kernel/qmetaobject.cpp:237
#11 0x05068336 in QMetaCallEvent::placeMetaCall (this=0x9e7a768, object=0xa3ebfb8) at kernel/qobject.cpp:561
#12 0x050693fe in QObject::event (this=0xa3ebfb8, e=0x9e7a768) at kernel/qobject.cpp:1248
#13 0x00d68326 in QWidget::event (this=0xa3ebfb8, event=0x9e7a768) at kernel/qwidget.cpp:8455
#14 0x00d0a4dc in QApplicationPrivate::notify_helper (this=0x9b75f60, receiver=0xa3ebfb8, e=0x9e7a768) at kernel/qapplication.cpp:4300
#15 0x00d110f9 in QApplication::notify (this=0xbf8bd63c, receiver=0xa3ebfb8, e=0x9e7a768) at kernel/qapplication.cpp:4265
#16 0x002eff2a in KApplication::notify (this=0xbf8bd63c, receiver=0xa3ebfb8, event=0x9e7a768) at ../../kdeui/kernel/kapplication.cpp:302
#17 0x05058a3b in QCoreApplication::notifyInternal (this=0xbf8bd63c, receiver=0xa3ebfb8, event=0x9e7a768) at kernel/qcoreapplication.cpp:704
#18 0x0505b473 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x9b552c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#19 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9b552c0) at kernel/qcoreapplication.cpp:1345
#20 0x0505b5dd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#21 0x05084adf in QCoreApplication::sendPostedEvents (s=0x9b78518) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#22 postEventSourceDispatch (s=0x9b78518) at kernel/qeventdispatcher_glib.cpp:276
#23 0x01e115e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#24 0x01e152d8 in ?? () from /lib/libglib-2.0.so.0
#25 0x01e154b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#26 0x050845d5 in QEventDispatcherGlib::processEvents (this=0x9b554a0, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#27 0x00dca135 in QGuiEventDispatcherGlib::processEvents (this=0x9b554a0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#28 0x05057059 in QEventLoop::processEvents (this=0xbf8bd594, flags=) at kernel/qeventloop.cpp:149
#29 0x050574aa in QEventLoop::exec (this=0xbf8bd594, flags=...) at kernel/qeventloop.cpp:201
#30 0x0505b69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#31 0x00d0a577 in QApplication::exec () at kernel/qapplication.cpp:3579
#32 0x08056b5e in main (argc=5, argv=0xbf8bd784) at ../../../systemsettings/app/main.cpp:49

Reported using DrKonqi