Application: plasma-desktop (0.3)
KDE Platform Version: 4.3.80 (KDE 4.3.80 (KDE 4.4 Beta1))
Qt Version: 4.6.0
Operating System: Linux 2.6.32-7-generic i686
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
Knowledgebase widget fails to  open and crashes.  plasmae-workspace seems to refresh / restart.

desktop config: single activity area with luna and home folder view widget on desktop

The crash can be reproduced everytime.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  Attica::KdePlatformDependent::openWallet (this=0xa52c848, force=false) at ../../../attica/kdeplugin/kdeplatformdependent.cpp:47
#7  0x01d7b22c in KdePlatformDependent (this=0xa52c848) at ../../../attica/kdeplugin/kdeplatformdependent.cpp:38
#8  0x01d7b2cb in qt_plugin_instance () at ../../../attica/kdeplugin/kdeplatformdependent.cpp:133
#9  0x0025c634 in QPluginLoader::instance (this=0xbfe73f80) at plugin/qpluginloader.cpp:204
#10 0x08654fec in Attica::ProviderManager::loadPlatformDependent() () from /usr/lib/libattica.so.0
#11 0x086559f9 in Attica::ProviderManager::ProviderManager() () from /usr/lib/libattica.so.0
#12 0x0924eed3 in ?? () from /usr/lib/kde4/plasma_engine_ocs.so
#13 0x0925f5e8 in QObject* KPluginFactory::createInstance<OcsEngine, QObject>(QWidget*, QObject*, QList<QVariant> const&) () from /usr/lib/kde4/plasma_engine_ocs.so
#14 0x00b6b6fe in KPluginFactory::create (this=0xa4e1a50, iface=0x9f43c3c "H<g\bH\315R\n\350\207\355\ts", parentWidget=0x0, parent=0x0, args=..., keyword=...)
    at ../../kdecore/util/kpluginfactory.cpp:191
#15 0x04eb4482 in KPluginFactory::create<Plasma::DataEngine> (this=0x9a59b80, name=...) at ../../kdecore/util/kpluginfactory.h:515
#16 KService::createInstance<Plasma::DataEngine> (this=0x9a59b80, name=...) at ../../kdecore/services/kservice.h:517
#17 KService::createInstance<Plasma::DataEngine> (this=0x9a59b80, name=...) at ../../kdecore/services/kservice.h:494
#18 Plasma::DataEngineManager::loadEngine (this=0x9a59b80, name=...) at ../../plasma/dataenginemanager.cpp:139
#19 0x04ee8561 in Plasma::DataEngineConsumer::dataEngine (this=0xa2424f0, name=...) at ../../plasma/private/dataengineconsumer.cpp:100
#20 0x04e769ea in Plasma::Applet::dataEngine (this=0xa2463b0, name=...) at ../../plasma/applet.cpp:656
#21 0x01d71772 in ?? () from /usr/lib/kde4/plasma_applet_knowledgebase.so
#22 0x01d71f90 in ?? () from /usr/lib/kde4/plasma_applet_knowledgebase.so
#23 0x01d74e8b in ?? () from /usr/lib/kde4/plasma_applet_knowledgebase.so
#24 0x0027c95a in QMetaObject::metacall (object=0xa2463b0, cl=161013184, idx=170156976, argv=0xa2463d0) at kernel/qmetaobject.cpp:237
#25 0x0028b0db in QMetaObject::activate (sender=0xa52bd50, m=0x38b5a4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3294
#26 0x002dc9d7 in QTimer::timeout (this=0xa52bd50) at .moc/release-shared/moc_qtimer.cpp:134
#27 0x0029336e in QTimer::timerEvent (this=0xa52bd50, e=0xbfe74a80) at kernel/qtimer.cpp:271
#28 0x00287f44 in QObject::event (this=0xa52bd50, e=0xa513678) at kernel/qobject.cpp:1224
#29 0x029611dc in QApplicationPrivate::notify_helper (this=0x9624fb8, receiver=0xa52bd50, e=0xbfe74a80) at kernel/qapplication.cpp:4242
#30 0x02967e37 in QApplication::notify (this=0x961ebb8, receiver=0xa52bd50, e=0xbfe74a80) at kernel/qapplication.cpp:3661
#31 0x00f9118a in KApplication::notify (this=0x961ebb8, receiver=0xa52bd50, event=0xbfe74a80) at ../../kdeui/kernel/kapplication.cpp:302
#32 0x002776fb in QCoreApplication::notifyInternal (this=0x961ebb8, receiver=0xa52bd50, event=0xbfe74a80) at kernel/qcoreapplication.cpp:704
#33 0x002a6aa6 in QCoreApplication::sendEvent (this=0x962768c) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#34 QTimerInfoList::activateTimers (this=0x962768c) at kernel/qeventdispatcher_unix.cpp:603
#35 0x002a3737 in timerSourceDispatch (source=0x9627b00) at kernel/qeventdispatcher_glib.cpp:184
#36 idleTimerSourceDispatch (source=0x9627b00) at kernel/qeventdispatcher_glib.cpp:231
#37 0x0061dfd8 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#38 0x00621880 in ?? () from /lib/libglib-2.0.so.0
#39 0x006219b3 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#40 0x002a33f5 in QEventDispatcherGlib::processEvents (this=0x95dd898, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#41 0x02a1eba5 in QGuiEventDispatcherGlib::processEvents (this=0x95dd898, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#42 0x00275d19 in QEventLoop::processEvents (this=0xbfe74d44, flags=) at kernel/qeventloop.cpp:149
#43 0x0027616a in QEventLoop::exec (this=0xbfe74d44, flags=...) at kernel/qeventloop.cpp:201
#44 0x0027a35f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#45 0x02961277 in QApplication::exec () at kernel/qapplication.cpp:3570
#46 0x0243605e in kdemain (argc=1, argv=0x9612e80) at ../../../../plasma/desktop/shell/main.cpp:112
#47 0x0804dfc1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x95dd990 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051429 "0") at ../../kinit/kinit.cpp:705
#48 0x0804ec15 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1197
#49 0x0804f08c in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1390
#50 0x0804fe27 in main (argc=4, argv=0xbfe757f4, envp=0xbfe75808) at ../../kinit/kinit.cpp:1825

This bug may be a duplicate of or related to bug 218470.

Possible duplicates by query: bug 218470, bug 217832.

Reported using DrKonqi