Application: systemsettings (1.0)
KDE Platform Version: 4.7.2 (4.7.2)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-14-generic i686
Distribution: Ubuntu 11.10

-- Information about the crash:
I was uninstalling skanlite (as I found out it is superseded by AcquireImages).  When I was closing the Software Managing tab to go back to the System Settings main tab, System Settings crashed without showing the main tab again.

-- Backtrace:
Application: System Settings (systemsettings), signal: Segmentation fault
[Current thread is 1 (Thread 0xb782f930 (LWP 2096))]

Thread 2 (Thread 0xb5a48b70 (LWP 2097)):
#0  0x00ca1d64 in __pthread_mutex_unlock_usercnt (mutex=0x933b2a4, decr=1) at pthread_mutex_unlock.c:49
#1  0x00a85f54 in pthread_mutex_unlock (mutex=0x933b2a4) at forward.c:184
#2  0x048e5f1f in g_main_context_check () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0x048e68f0 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0x048e6c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#5  0x02dcdb37 in QEventDispatcherGlib::processEvents (this=0x92874d8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#6  0x02d9e1dd in QEventLoop::processEvents (this=0xb5a482b0, flags=...) at kernel/qeventloop.cpp:149
#7  0x02d9e421 in QEventLoop::exec (this=0xb5a482b0, flags=...) at kernel/qeventloop.cpp:201
#8  0x02ca190b in QThread::exec (this=0x9337d50) at thread/qthread.cpp:498
#9  0x02d7ee2d in QInotifyFileSystemWatcherEngine::run (this=0x9337d50) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x02ca47b3 in QThreadPrivate::start (arg=0x9337d50) at thread/qthread_unix.cpp:331
#11 0x00c9ed31 in start_thread (arg=0xb5a48b70) at pthread_create.c:304
#12 0x00a780ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
Backtrace stopped: Not enough registers or memory available to unwind further

Thread 1 (Thread 0xb782f930 (LWP 2096)):
[KCrash Handler]
#7  0x0351130c in QHash<void*, PyQtProxy*>::duplicateNode(QHashData::Node*, void*) () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#8  0x02cc2c99 in QHashData::detach_helper2 (this=0x9798548, node_duplicate=0x3511300 <QHash<void*, PyQtProxy*>::duplicateNode(QHashData::Node*, void*)>, node_delete=0x35112f0 <QHash<void*, PyQtProxy*>::deleteNode2(QHashData::Node*)>, nodeSize=16, nodeAlign=4) at tools/qhash.cpp:235
#9  0x0351630c in sipQtFindSipslot () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so
#10 0x02205c00 in sipWrapper_traverse (arg=0x0, visit=0x30a9720 <visit_decref>, self=0x977577c) at /build/buildd/sip4-4.12.4/siplib/siplib.c:9648
#11 sipWrapper_traverse (self=0x977577c, visit=0x30a9720 <visit_decref>, arg=0x0) at /build/buildd/sip4-4.12.4/siplib/siplib.c:9629
#12 0x03025252 in subtype_traverse (self=<QApplication at remote 0x977577c>, visit=0x30a9720 <visit_decref>, arg=0x0) at ../Objects/typeobject.c:838
#13 0x030a9990 in subtract_refs (containers=0x3220728) at ../Modules/gcmodule.c:345
#14 collect (generation=2) at ../Modules/gcmodule.c:874
#15 0x030aa6bc in PyGC_Collect () at ../Modules/gcmodule.c:1386
#16 0x03095adb in Py_Finalize () at ../Python/pythonrun.c:437
#17 Py_Finalize () at ../Python/pythonrun.c:393
#18 0x070a2f75 in KPythonPluginFactory::~KPythonPluginFactory (this=0x955ece0, __in_chrg=<optimized out>) at ../../kpythonpluginfactory/kpythonpluginfactory.cpp:262
#19 0x070a3002 in KPythonPluginFactory::~KPythonPluginFactory (this=0x955ece0, __in_chrg=<optimized out>) at ../../kpythonpluginfactory/kpythonpluginfactory.cpp:268
#20 0x02db9b45 in QObjectCleanupHandler::clear (this=0x92d56d0) at kernel/qobjectcleanuphandler.cpp:140
#21 0x02db9b8d in QObjectCleanupHandler::~QObjectCleanupHandler (this=0x92d56d0, __in_chrg=<optimized out>) at kernel/qobjectcleanuphandler.cpp:86
#22 0x02db9c02 in QObjectCleanupHandler::~QObjectCleanupHandler (this=0x92d56d0, __in_chrg=<optimized out>) at kernel/qobjectcleanuphandler.cpp:87
#23 0x008f4992 in destroy () at ../../kdecore/util/kpluginfactory.cpp:29
#24 0x00768379 in KCleanUpGlobalStatic::~KCleanUpGlobalStatic (this=0x9a50f0, __in_chrg=<optimized out>) at ../../kdecore/kernel/kglobal.h:62
#25 0x009d8981 in __run_exit_handlers (status=1, listp=0xb1e324, run_list_atexit=true) at exit.c:78
#26 0x009d8a0d in __GI_exit (status=1) at exit.c:100
#27 0x036e9d90 in ?? () from /usr/lib/i386-linux-gnu/libgdk-x11-2.0.so.0
#28 0x00dafd6b in _XError () from /usr/lib/i386-linux-gnu/libX11.so.6
#29 0x00dac93d in ?? () from /usr/lib/i386-linux-gnu/libX11.so.6
#30 0x00dad927 in _XReply () from /usr/lib/i386-linux-gnu/libX11.so.6
#31 0x00d922b8 in XGetWindowProperty () from /usr/lib/i386-linux-gnu/libX11.so.6
#32 0x00469510 in NETWinInfo::update (this=0xbfaaa808, dirty_props=0xbfaaa788) at ../../kdeui/windowmanagement/netwm.cpp:3962
#33 0x0046adb6 in NETWinInfo::event (this=0xbfaaa808, event=0xbfaaa8ec, properties=0xbfaaa7f4, properties_size=2) at ../../kdeui/windowmanagement/netwm.cpp:3925
#34 0x0045f0b0 in KWindowSystemPrivate::x11Event (this=0x9556538, ev=0xbfaaa8ec) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:198
#35 0x00326fab in publicX11Event (e=0xbfaaa8ec, this=<optimized out>) at ../../kdeui/kernel/ksystemeventfilter.cpp:43
#36 KSystemEventFilterPrivate::filterEvent (this=0x9557508, message=0xbfaaa8ec) at ../../kdeui/kernel/ksystemeventfilter.cpp:102
#37 0x00327046 in _k_eventFilter (message=0xbfaaa8ec) at ../../kdeui/kernel/ksystemeventfilter.cpp:91
#38 0x02d917cc in QAbstractEventDispatcher::filterEvent (this=0x9003bb0, message=0xbfaaa8ec) at kernel/qabstracteventdispatcher.cpp:501
#39 0x01205181 in x11EventSourceDispatch (s=0x9025ba8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:143
#40 0x048e625f in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0x048e6990 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0x048e6c2a in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#43 0x02dcdada in QEventDispatcherGlib::processEvents (this=0x9003bb0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#44 0x01204e3a in QGuiEventDispatcherGlib::processEvents (this=0x9003bb0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0x02d9e1dd in QEventLoop::processEvents (this=0xbfaaabf4, flags=...) at kernel/qeventloop.cpp:149
#46 0x02d9e421 in QEventLoop::exec (this=0xbfaaabf4, flags=...) at kernel/qeventloop.cpp:201
#47 0x02da319d in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#48 0x0114a8f4 in QApplication::exec () at kernel/qapplication.cpp:3760
#49 0x080502b8 in main (argc=32, argv=0x19) at ../../../systemsettings/app/main.cpp:49

Possible duplicates by query: bug 288643, bug 288580, bug 288565, bug 288503, bug 288489.

Reported using DrKonqi