Application: plasma-desktop (4.11.00)
KDE Platform Version: 4.11.00
Qt Version: 4.8.4
Operating System: Linux 3.11.0-4-generic x86_64
Distribution: Ubuntu Saucy Salamander (development branch)

-- Information about the crash:
- What I was doing when the application crashed:

was logging into the desktop.
I really don't know how to read a backtrace, so marked this as a possible dupe.

-- Backtrace:
Application: Plasma Desktop Shell (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007fb9ca1c1110 in QMetaObject::cast (this=this@entry=0x7fb9cd516580 <Plasma::AppletScript::staticMetaObject>, obj=obj@entry=0x25072a0) at kernel/qmetaobject.cpp:275
#7  0x00007fb9cd1beb7f in qobject_cast<Plasma::WallpaperScript*> (object=0x25072a0) at /usr/include/qt4/QtCore/qobject.h:380
#8  create<Plasma::WallpaperScript> (args=..., keyword=..., parent=<optimized out>, parentWidget=<optimized out>, this=<optimized out>) at ../../kdecore/util/kpluginfactory.h:533
#9  createInstance<Plasma::WallpaperScript> (error=<optimized out>, args=..., parent=<optimized out>, parentWidget=<optimized out>, this=<optimized out>) at ../../kdecore/services/kservice.h:573
#10 createInstance<Plasma::WallpaperScript> (error=<optimized out>, args=..., parent=<optimized out>, this=<optimized out>) at ../../kdecore/services/kservice.h:550
#11 Plasma::loadEngine (language=..., type=type@entry=Plasma::AppletComponent, parent=parent@entry=0x22e6b60) at ../../plasma/scripting/scriptengine.cpp:185
#12 0x00007fb9cd1bf146 in Plasma::loadScriptEngine (language=..., applet=0x22e6b60) at ../../plasma/scripting/scriptengine.cpp:209
#13 0x00007fb9cd1137dd in Plasma::AppletPrivate::init (this=0x21f3c10, packagePath=...) at ../../plasma/applet.cpp:2772
#14 0x00007fb9cd1188f3 in Plasma::Applet::Applet (this=0x22e6b60, parentObject=0x0, args=...) at ../../plasma/applet.cpp:193
#15 0x00007fb9cd155ee2 in Plasma::PluginLoader::loadApplet (this=<optimized out>, name=..., appletId=<optimized out>, appletId@entry=18, args=...) at ../../plasma/pluginloader.cpp:134
#16 0x00007fb9cd10b0d5 in Plasma::Applet::load (appletName=..., appletId=appletId@entry=18, args=...) at ../../plasma/applet.cpp:2424
#17 0x00007fb9cd128444 in Plasma::ContainmentPrivate::addApplet (this=0x21cc9f0, name=..., args=..., appletGeometry=..., id=id@entry=18, delayInit=delayInit@entry=true) at ../../plasma/containment.cpp:2221
#18 0x00007fb9cd12cb45 in Plasma::Containment::restoreContents (this=0x21c2100, group=...) at ../../plasma/containment.cpp:497
#19 0x00007fb9cd129694 in Plasma::Containment::restore (this=0x21c2100, group=...) at ../../plasma/containment.cpp:337
#20 0x00007fb9b1e9606c in ?? () from /usr/lib/kde4/plasma_containment_panel.so
#21 0x00007fb9cd138f51 in Plasma::CoronaPrivate::importLayout (this=0x1f8f3b0, conf=..., mergeConfig=mergeConfig@entry=false) at ../../plasma/corona.cpp:1061
#22 0x00007fb9cd139a5c in Plasma::Corona::loadLayout (this=this@entry=0x1f0d810, configName=...) at ../../plasma/corona.cpp:278
#23 0x00007fb9cd139b12 in Plasma::Corona::initializeLayout (this=0x1f0d810, configName=...) at ../../plasma/corona.cpp:181
#24 0x00007fb9cd93deaa in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#25 0x00007fb9cd93e4b5 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#26 0x00007fb9cd942815 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#27 0x00007fb9ca1d2dce in QObject::event (this=this@entry=0x1eb02b0, e=e@entry=0x20245b0) at kernel/qobject.cpp:1194
#28 0x00007fb9ca1befdc in QCoreApplication::event (this=this@entry=0x1eb02b0, e=e@entry=0x20245b0) at kernel/qcoreapplication.cpp:1758
#29 0x00007fb9c955cea3 in QApplication::event (this=0x1eb02b0, e=0x20245b0) at kernel/qapplication.cpp:2549
#30 0x00007fb9c9557dfc in QApplicationPrivate::notify_helper (this=this@entry=0x1f04880, receiver=receiver@entry=0x1eb02b0, e=e@entry=0x20245b0) at kernel/qapplication.cpp:4567
#31 0x00007fb9c955e470 in QApplication::notify (this=this@entry=0x1eb02b0, receiver=receiver@entry=0x1eb02b0, e=e@entry=0x20245b0) at kernel/qapplication.cpp:4353
#32 0x00007fb9cae7e9aa in KApplication::notify (this=0x1eb02b0, receiver=0x1eb02b0, event=0x20245b0) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007fb9ca1ba8bd in QCoreApplication::notifyInternal (this=0x1eb02b0, receiver=receiver@entry=0x1eb02b0, event=event@entry=0x20245b0) at kernel/qcoreapplication.cpp:946
#34 0x00007fb9ca1bde1f in sendEvent (event=0x20245b0, receiver=0x1eb02b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#35 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1e6e1f0) at kernel/qcoreapplication.cpp:1570
#36 0x00007fb9ca1be2c3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#37 0x00007fb9ca1e8073 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#38 postEventSourceDispatch (s=0x1eff0a0) at kernel/qeventdispatcher_glib.cpp:279
#39 0x00007fb9c09812d6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#40 0x00007fb9c0981628 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#41 0x00007fb9c09816cc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#42 0x00007fb9ca1e7a55 in QEventDispatcherGlib::processEvents (this=0x1e6fad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#43 0x00007fb9c95f99d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#44 0x00007fb9ca1b95ef in QEventLoop::processEvents (this=this@entry=0x7fff2c0dc1c0, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007fb9ca1b98e5 in QEventLoop::exec (this=this@entry=0x7fff2c0dc1c0, flags=...) at kernel/qeventloop.cpp:204
#46 0x00007fb9ca1bee5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#47 0x00007fb9cd92927c in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#48 0x00007fb9cd547de5 in __libc_start_main (main=0x4006e0, argc=1, ubp_av=0x7fff2c0dc418, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff2c0dc408) at libc-start.c:260
#49 0x000000000040070e in _start ()

The reporter indicates this bug may be a duplicate of or related to bug 324000.

Possible duplicates by query: bug 324040, bug 324000.

Reported using DrKonqi