Application: kactivitymanagerd (1.0)
KDE Platform Version: 4.6.3 (4.6.3)
Qt Version: 4.7.3
Operating System: Linux 2.6.39-2-amd64 x86_64
Distribution: Debian GNU/Linux 6.0-updates (squeeze)

-- Information about the crash:
I switched sessions between gnome and kde today for finding out more about a miro4 segfault on startup. When I switched to KDE for the 3rd time the splash screen was displayed for quite a long time (maybe 1 minute (?) instead of usually 5-10seconds(?)) and the kactivitymanager crashed.

On this system the nepomuk stub also aborts after some minutes of idle time on my desktop but I was not able to get a backtrace or something yet.

-- Backtrace:
Application: KDE-Aktivitätenverwaltung (kactivitymanagerd), signal: Segmentation fault
[KCrash Handler]
#6  0x00007fab53ce983c in QMutex::lock (this=0xdaadb8) at thread/qmutex.cpp:151
#7  0x00007fab51824ba1 in QMutexLocker (this=0xdcdb20, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qmutex.h:102
#8  Soprano::Client::SocketHandler::~SocketHandler (this=0xdcdb20, __in_chrg=<value optimized out>) at ../../client/clientconnection.cpp:58
#9  0x00007fab51824c69 in Soprano::Client::SocketHandler::~SocketHandler (this=0xdcdb20, __in_chrg=<value optimized out>) at ../../client/clientconnection.cpp:61
#10 0x00007fab53cec6a7 in QThreadStorageData::set (this=0xdc9710, p=0xde26c0) at thread/qthreadstorage.cpp:165
#11 0x00007fab518225f2 in qThreadStorage_setLocalData<Soprano::Client::SocketHandler> (this=0xdc75a0) at /usr/include/qt4/QtCore/qthreadstorage.h:92
#12 setLocalData (this=0xdc75a0) at /usr/include/qt4/QtCore/qthreadstorage.h:148
#13 Soprano::Client::ClientConnection::socketForCurrentThread (this=0xdc75a0) at ../../client/clientconnection.cpp:95
#14 0x00007fab51822639 in Soprano::Client::ClientConnection::connectInCurrentThread (this=<value optimized out>) at ../../client/clientconnection.cpp:754
#15 0x00007fab51821a6f in Soprano::Client::LocalSocketClient::connect (this=0xdaa4d8, name=...) at ../../client/localsocketclient.cpp:141
#16 0x00007fab55597599 in init (this=0xda9d60) at ../../nepomuk/core/nepomukmainmodel.cpp:102
#17 Nepomuk::MainModel::init (this=0xda9d60) at ../../nepomuk/core/nepomukmainmodel.cpp:176
#18 0x00007fab5558e657 in Nepomuk::ResourceManager::init (this=0xca6080) at ../../nepomuk/core/resourcemanager.cpp:328
#19 0x00007fab55591785 in Nepomuk::ResourceManagerPrivate::_k_storageServiceInitialized (this=0xd6f5b0, success=<value optimized out>) at ../../nepomuk/core/resourcemanager.cpp:219
#20 0x00007fab55591885 in Nepomuk::ResourceManager::qt_metacall (this=0xca6080, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff0264b300) at ./resourcemanager.moc:90
#21 0x00007fab5412c311 in QDBusConnectionPrivate::deliverCall (this=0xc98920, object=0xca6080, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:941
#22 0x00007fab5413584f in QDBusCallDeliveryEvent::placeMetaCall (this=<value optimized out>, object=<value optimized out>) at qdbusintegrator_p.h:103
#23 0x00007fab53deb19a in QObject::event (this=0xca6080, e=<value optimized out>) at kernel/qobject.cpp:1217
#24 0x00007fab54a696d4 in notify_helper (this=0xcb10f0, receiver=0xca6080, e=0xdc7d30) at kernel/qapplication.cpp:4467
#25 QApplicationPrivate::notify_helper (this=0xcb10f0, receiver=0xca6080, e=0xdc7d30) at kernel/qapplication.cpp:4439
#26 0x00007fab54a6e561 in QApplication::notify (this=0x7fff0264be70, receiver=0xca6080, e=0xdc7d30) at kernel/qapplication.cpp:4346
#27 0x00007fab55a69fb6 in KApplication::notify (this=0x7fff0264be70, receiver=0xca6080, event=0xdc7d30) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007fab53dd497c in QCoreApplication::notifyInternal (this=0x7fff0264be70, receiver=0xca6080, event=0xdc7d30) at kernel/qcoreapplication.cpp:731
#29 0x00007fab53dd7cc4 in sendEvent (receiver=0x0, event_type=0, data=0xc7c5c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xc7c5c0) at kernel/qcoreapplication.cpp:1372
#31 0x00007fab53dff173 in sendPostedEvents (s=0xca7900) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=0xca7900) at kernel/qeventdispatcher_glib.cpp:277
#33 0x00007fab50ef74a3 in g_main_dispatch (context=0xca7820) at /tmp/buildd/glib2.0-2.28.6/./glib/gmain.c:2440
#34 g_main_context_dispatch (context=0xca7820) at /tmp/buildd/glib2.0-2.28.6/./glib/gmain.c:3013
#35 0x00007fab50ef7c80 in g_main_context_iterate (context=0xca7820, block=1, dispatch=1, self=<value optimized out>) at /tmp/buildd/glib2.0-2.28.6/./glib/gmain.c:3091
#36 0x00007fab50ef7f1d in g_main_context_iteration (context=0xca7820, may_block=1) at /tmp/buildd/glib2.0-2.28.6/./glib/gmain.c:3154
#37 0x00007fab53dff5cf in QEventDispatcherGlib::processEvents (this=0xc7dc80, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#38 0x00007fab54b0d70e in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#39 0x00007fab53dd3b82 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#40 0x00007fab53dd3d7f in QEventLoop::exec (this=0x7fff0264be00, flags=...) at kernel/qeventloop.cpp:201
#41 0x00007fab53dd7f57 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#42 0x0000000000404ba4 in main (argc=1, argv=0x7fff0264c068) at ../../activitymanager/main.cpp:40

This bug may be a duplicate of or related to bug 251795.

Possible duplicates by query: bug 268369, bug 268367, bug 264504, bug 263682, bug 263203.

Reported using DrKonqi