Application: kactivitymanagerd (1.0)
KDE Platform Version: 4.8.00 (4.8.0 "release 462"
Qt Version: 4.8.0
Operating System: Linux 3.1.9-1.4-default x86_64
Distribution: "Balsam Professional 12.1 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
I just made a Login into KDE. After a success the Plasma starts, and then the Activitymanager crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE-Aktivitätenverwaltung (kactivitymanagerd), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7dadd3a760 (LWP 10526))]

Thread 2 (Thread 0x7f7d9e941700 (LWP 10530)):
#0  0x00007f7dab346209 in syscall () from /lib64/libc.so.6
#1  0x00007f7dac66302b in _q_futex (val2=0, addr2=0x0, timeout=0x0, val=2, op=0, addr=0x81c750) at thread/qmutex_unix.cpp:99
#2  QMutexPrivate::wait (this=0x81c750, timeout=<optimized out>) at thread/qmutex_unix.cpp:113
#3  0x00007f7dac65eded in QMutex::lockInternal (this=<optimized out>) at thread/qmutex.cpp:450
#4  0x00007f7dacd83bb0 in lockInline (this=0x650068) at /usr/include/QtCore/qmutex.h:190
#5  QMutexLocker (m=0x650068, this=<synthetic pointer>) at /usr/include/QtCore/qmutex.h:109
#6  Nepomuk::ResourceManager::initialized (this=0x81c570) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/resourcemanager.cpp:339
#7  0x00007f7dacd83cad in Nepomuk::ResourceManager::mainModel (this=0x81c570) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/resourcemanager.cpp:508
#8  0x00007f7d9e9498cf in ?? () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so
#9  0x00007f7d9e9505b8 in ?? () from /usr/lib64/kde4/activitymanager_plugin_nepomuk.so
#10 0x00007f7dac66455b in QThreadPrivate::start (arg=0x8adb60) at thread/qthread_unix.cpp:298
#11 0x00007f7dab05af05 in start_thread () from /lib64/libpthread.so.0
#12 0x00007f7dab34963d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f7dadd3a760 (LWP 10526)):
[KCrash Handler]
#6  indexOf (t=@0x857238, this=0x813310, from=<optimized out>) at /usr/include/QtCore/qlist.h:855
#7  QList<QIODevice*>::removeAll (this=0x813310, _t=@0x857238) at /usr/include/QtCore/qlist.h:772
#8  0x00007f7da83da803 in Soprano::Client::SocketHandler::~SocketHandler (this=0x857220, __in_chrg=<optimized out>) at /usr/src/debug/soprano-2.7.4/client/clientconnection.cpp:59
#9  0x00007f7da83da909 in Soprano::Client::SocketHandler::~SocketHandler (this=0x857220, __in_chrg=<optimized out>) at /usr/src/debug/soprano-2.7.4/client/clientconnection.cpp:61
#10 0x00007f7dac66252d in QThreadStorageData::set (this=0x8564e0, p=0x8031b0) at thread/qthreadstorage.cpp:165
#11 0x00007f7da83d8290 in qThreadStorage_setLocalData<Soprano::Client::SocketHandler> (d=<optimized out>, t=<optimized out>) at /usr/include/QtCore/qthreadstorage.h:92
#12 setLocalData (t=0x8031b0, this=<optimized out>) at /usr/include/QtCore/qthreadstorage.h:155
#13 Soprano::Client::ClientConnection::socketForCurrentThread (this=0x861210) at /usr/src/debug/soprano-2.7.4/client/clientconnection.cpp:95
#14 0x00007f7da83d8309 in Soprano::Client::ClientConnection::connectInCurrentThread (this=<optimized out>) at /usr/src/debug/soprano-2.7.4/client/clientconnection.cpp:800
#15 0x00007f7da83d78ca in Soprano::Client::LocalSocketClient::connect (this=0x7f43b8, name=...) at /usr/src/debug/soprano-2.7.4/client/localsocketclient.cpp:141
#16 0x00007f7dacd8db41 in init (forced=true, this=0x7f4390) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/nepomukmainmodel.cpp:102
#17 Nepomuk::MainModel::init (this=0x6511c0) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/nepomukmainmodel.cpp:176
#18 0x00007f7dacd83779 in Nepomuk::ResourceManager::init (this=0x81c570) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/resourcemanager.cpp:331
#19 0x00007f7dacd86a85 in Nepomuk::ResourceManagerPrivate::_k_storageServiceInitialized (this=0x650050, success=<optimized out>) at /usr/src/debug/kdelibs-4.8.0/nepomuk/core/resourcemanager.cpp:221
#20 0x00007f7dacd86bdb in Nepomuk::ResourceManager::qt_metacall (this=0x81c570, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff7f729670) at /usr/src/debug/kdelibs-4.8.0/build/nepomuk/resourcemanager.moc:107
#21 0x00007f7dacaddf6b in QDBusConnectionPrivate::deliverCall (this=0x6441b0, object=0x81c570, msg=..., metaTypes=..., slotIdx=9) at qdbusintegrator.cpp:947
#22 0x00007f7dac77a926 in QObject::event (this=0x81c570, e=<optimized out>) at kernel/qobject.cpp:1204
#23 0x00007f7dabae6e84 in notify_helper (e=0x85fcd0, receiver=0x81c570, this=0x664b50) at kernel/qapplication.cpp:4550
#24 QApplicationPrivate::notify_helper (this=0x664b50, receiver=0x81c570, e=0x85fcd0) at kernel/qapplication.cpp:4522
#25 0x00007f7dabaebd03 in QApplication::notify (this=0x7fff7f72a0a0, receiver=0x81c570, e=0x85fcd0) at kernel/qapplication.cpp:4411
#26 0x00007f7dad253786 in KApplication::notify (this=0x7fff7f72a0a0, receiver=0x81c570, event=0x85fcd0) at /usr/src/debug/kdelibs-4.8.0/kdeui/kernel/kapplication.cpp:311
#27 0x00007f7dac76189c in QCoreApplication::notifyInternal (this=0x7fff7f72a0a0, receiver=0x81c570, event=0x85fcd0) at kernel/qcoreapplication.cpp:876
#28 0x00007f7dac76513a in sendEvent (event=0x85fcd0, receiver=0x81c570) at kernel/qcoreapplication.h:231
#29 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x6293d0) at kernel/qcoreapplication.cpp:1500
#30 0x00007f7dac7904c3 in sendPostedEvents () at kernel/qcoreapplication.h:236
#31 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#32 0x00007f7da76a558d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#33 0x00007f7da76a5d88 in ?? () from /usr/lib64/libglib-2.0.so.0
#34 0x00007f7da76a5f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#35 0x00007f7dac7908ef in QEventDispatcherGlib::processEvents (this=0x6290b0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#36 0x00007f7dabb8a2de in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007f7dac760682 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007f7dac7608d7 in QEventLoop::exec (this=0x7fff7f72a030, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007f7dac765435 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#40 0x0000000000406094 in ?? ()
#41 0x00007f7dab29123d in __libc_start_main () from /lib64/libc.so.6
#42 0x00000000004060e9 in _start ()

Reported using DrKonqi