Application: plasma-desktop (4.10.5)
KDE Platform Version: 4.10.5
Qt Version: 4.8.6
Operating System: Linux 3.10-2-686-pae i686
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
I enter a username & password. Following the download kde. At the moment when you should see the desktop - an error message appears. Applications run. Windows mashyu move with effects - apparently opengl functions normally.
The error repeats every time you log into the system with the desktop plasma-desktop.
sorry for my english))

The crash can be reproduced every time.

-- Backtrace:
Application: Оболочка Plasma (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
[KCrash Handler]
#7  0xb60896a8 in QMetaObject::cast (this=0xb758a35c <Plasma::AppletScript::staticMetaObject>, obj=0x9a74ff8) at kernel/qmetaobject.cpp:275
#8  0xb74216d1 in qobject_cast<Plasma::AppletScript*> (object=<optimized out>) at /usr/include/qt4/QtCore/qobject.h:380
#9  create<Plasma::AppletScript> (args=..., keyword=..., parent=<optimized out>, parentWidget=0x0, this=<optimized out>) at ../../kdecore/util/kpluginfactory.h:533
#10 createInstance<Plasma::AppletScript> (error=0xbfa73e78, args=..., parent=<optimized out>, parentWidget=0x0, this=0x998b690) at ../../kdecore/services/kservice.h:559
#11 createInstance<Plasma::AppletScript> (error=0xbfa73e78, args=..., parent=<optimized out>, this=0x998b690) at ../../kdecore/services/kservice.h:536
#12 Plasma::loadEngine (language=..., type=type@entry=Plasma::AppletComponent, parent=parent@entry=0x99dbd28) at ../../plasma/scripting/scriptengine.cpp:176
#13 0xb7421b6d in Plasma::loadScriptEngine (language=..., applet=0x99dbd28) at ../../plasma/scripting/scriptengine.cpp:209
#14 0xb7361621 in Plasma::AppletPrivate::init (this=0x9978738, packagePath=...) at ../../plasma/applet.cpp:2799
#15 0xb7367314 in Plasma::Applet::Applet (this=0x99dbd28, parentObject=0x0, args=...) at ../../plasma/applet.cpp:193
#16 0xb73ab150 in Plasma::PluginLoader::loadApplet (this=0x977c568, name=..., appletId=<optimized out>, appletId@entry=64, args=...) at ../../plasma/pluginloader.cpp:134
#17 0xb73584d4 in Plasma::Applet::load (appletName=..., appletId=appletId@entry=64, args=...) at ../../plasma/applet.cpp:2451
#18 0xb73785b4 in Plasma::ContainmentPrivate::addApplet (this=0x9969be8, name=..., args=..., appletGeometry=..., id=64, delayInit=delayInit@entry=true) at ../../plasma/containment.cpp:2221
#19 0xb737d1d6 in Plasma::Containment::restoreContents (this=0x996a830, group=...) at ../../plasma/containment.cpp:497
#20 0xb7379ae5 in Plasma::Containment::restore (this=0x996a830, group=...) at ../../plasma/containment.cpp:337
#21 0xb738ac05 in Plasma::CoronaPrivate::importLayout (this=0x962f258, conf=..., mergeConfig=mergeConfig@entry=false) at ../../plasma/corona.cpp:1061
#22 0xb738b786 in Plasma::Corona::loadLayout (this=this@entry=0x965cdf8, configName=...) at ../../plasma/corona.cpp:278
#23 0xb738b85e in Plasma::Corona::initializeLayout (this=this@entry=0x965cdf8, configName=...) at ../../plasma/corona.cpp:181
#24 0xb77acb12 in PlasmaApp::corona (this=this@entry=0x95eef18, createIfMissing=createIfMissing@entry=true) at ../../../../plasma/desktop/shell/plasmaapp.cpp:856
#25 0xb77ad13a in PlasmaApp::setupDesktop (this=0x95eef18) at ../../../../plasma/desktop/shell/plasmaapp.cpp:314
#26 0xb77b1b48 in PlasmaApp::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=0x96bd130, _c=<optimized out>) at ./plasmaapp.moc:128
#27 0xb6093fba in QMetaCallEvent::placeMetaCall (this=0x9605db8, object=0x95eef18) at kernel/qobject.cpp:524
#28 0xb609be8b in QObject::event (this=this@entry=0x95eef18, e=e@entry=0x9605db8) at kernel/qobject.cpp:1194
#29 0xb608729a in QCoreApplication::event (this=0x95eef18, e=0x9605db8) at kernel/qcoreapplication.cpp:1761
#30 0xb5592dcf in QApplication::event (this=0x95eef18, e=0x9605db8) at kernel/qapplication.cpp:2549
#31 0xb558d8b4 in QApplicationPrivate::notify_helper (this=0x9601370, receiver=0x95eef18, e=0x9605db8) at kernel/qapplication.cpp:4567
#32 0xb55943b3 in QApplication::notify (this=0x95eef18, receiver=receiver@entry=0x95eef18, e=e@entry=0x9605db8) at kernel/qapplication.cpp:4353
#33 0xb6716554 in KApplication::notify (this=0x95eef18, receiver=0x95eef18, event=0x9605db8) at ../../kdeui/kernel/kapplication.cpp:311
#34 0xb608271a in QCoreApplication::notifyInternal (this=0x95eef18, receiver=receiver@entry=0x95eef18, event=event@entry=0x9605db8) at kernel/qcoreapplication.cpp:949
#35 0xb6085ee5 in sendEvent (event=0x9605db8, receiver=0x95eef18) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#36 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x9595130) at kernel/qcoreapplication.cpp:1573
#37 0xb608640c in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#38 0xb60b2a3e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#39 postEventSourceDispatch (s=0x95fcc40) at kernel/qeventdispatcher_glib.cpp:280
#40 0xb2a7c42e in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0
#41 0xb2a7c7d8 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#42 0xb2a7c898 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
#43 0xb60b221f in QEventDispatcherGlib::processEvents (this=this@entry=0x9595e90, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#44 0xb563edae in QGuiEventDispatcherGlib::processEvents (this=0x9595e90, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#45 0xb6081163 in QEventLoop::processEvents (this=this@entry=0xbfa74c08, flags=...) at kernel/qeventloop.cpp:149
#46 0xb6081489 in QEventLoop::exec (this=this@entry=0xbfa74c08, flags=...) at kernel/qeventloop.cpp:204
#47 0xb60870fe in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#48 0xb558bd44 in QApplication::exec () at kernel/qapplication.cpp:3828
#49 0xb7794a47 in kdemain (argc=1, argv=0xbfa74da4) at ../../../../plasma/desktop/shell/main.cpp:126
#50 0x0804856b in main (argc=1, argv=0xbfa74da4) at plasma-desktop_dummy.cpp:3

Reported using DrKonqi