Application: plasma-desktop (0.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-27-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:
Error apear on startup. I not have done any interaction on Plasma, that could cause the crash.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  isEmpty (this=0x30) at ../../include/QtCore/../../src/corelib/tools/qhash.h:297
#7  QHash<void const*, QCss::StyleSheet>::remove (this=0x30, akey=@0x7fff400d7a08: 0x25d1d90) at ../../include/QtCore/../../src/corelib/tools/qhash.h:786
#8  0x00007f1e2545154f in QStyleSheetStyle::repolish (this=<optimized out>, w=0x25d1d90) at styles/qstylesheetstyle.cpp:2777
#9  0x00007f1e2515dd2b in QWidgetPrivate::inheritStyle (this=0x25d23b0) at kernel/qwidget.cpp:2824
#10 0x00007f1e2516f306 in QWidget::setParent (this=0x25d1d90, parent=0x25d13a0, f=...) at kernel/qwidget.cpp:10251
#11 0x00007f1e2516fb0e in QWidgetPrivate::init (this=0x25d23b0, parentWidget=<optimized out>, f=...) at kernel/qwidget.cpp:1369
#12 0x00007f1e251700c1 in QWidget::QWidget (this=0x25d1d90, parent=0x25d13a0, f=...) at kernel/qwidget.cpp:1173
#13 0x00007f1e255ada14 in QAbstractScrollAreaPrivate::init (this=0x25d1f90) at widgets/qabstractscrollarea.cpp:272
#14 0x00007f1e255addd4 in QAbstractScrollArea::QAbstractScrollArea (this=0x25d13a0, dd=..., parent=<optimized out>) at widgets/qabstractscrollarea.cpp:493
#15 0x00007f1e2564369c in QAbstractItemView::QAbstractItemView (this=0x25d13a0, parent=0x0) at itemviews/qabstractitemview.cpp:581
#16 0x00007f1e0d66cf90 in Kickoff::FlipScrollView::FlipScrollView (this=0x25d13a0, parent=<optimized out>) at ../../../../../plasma/desktop/applets/kickoff/ui/flipscrollview.cpp:162
#17 0x00007f1e0d6756a7 in setupAllProgramsView (this=0x25c4270) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:218
#18 initTabs (this=0x25c4270) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:157
#19 Kickoff::Launcher::init (this=0x230b300) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:548
#20 0x00007f1e0d6774ae in Kickoff::Launcher::Launcher (this=0x230b300, applet=0x1cbca70) at ../../../../../plasma/desktop/applets/kickoff/ui/launcher.cpp:516
#21 0x00007f1e0d67fcc9 in createLauncher (this=0x1da8b90) at ../../../../../plasma/desktop/applets/kickoff/applet/applet.cpp:73
#22 LauncherApplet::Private::createLauncher (this=0x1da8b90) at ../../../../../plasma/desktop/applets/kickoff/applet/applet.cpp:67
#23 0x00007f1e0d67fd3d in LauncherApplet::widget (this=0x1cbca70) at ../../../../../plasma/desktop/applets/kickoff/applet/applet.cpp:235
#24 0x00007f1e2874927c in Plasma::PopupAppletPrivate::popupConstraintsEvent (this=0x1daef80, constraints=...) at ../../plasma/popupapplet.cpp:229
#25 0x00007f1e286f0ace in Plasma::Applet::flushPendingConstraintsEvents (this=0x1cbca70) at ../../plasma/applet.cpp:1361
#26 0x00007f1e28700aa7 in Plasma::ContainmentPrivate::initApplets (this=0x1d21990) at ../../plasma/containment.cpp:470
#27 0x00007f1e28714ef2 in Plasma::CoronaPrivate::importLayout (this=0x1c65140, conf=..., mergeConfig=false) at ../../plasma/corona.cpp:1067
#28 0x00007f1e28715b94 in Plasma::Corona::loadLayout (this=0x1ca9c00, configName=...) at ../../plasma/corona.cpp:278
#29 0x00007f1e28715c5c in Plasma::Corona::initializeLayout (this=0x1ca9c00, configName=...) at ../../plasma/corona.cpp:181
#30 0x00007f1e28f27d39 in PlasmaApp::corona (this=0x1ac5100, createIfMissing=<optimized out>) at ../../../../plasma/desktop/shell/plasmaapp.cpp:833
#31 0x00007f1e28f2804f in PlasmaApp::setupDesktop (this=0x1ac5100) at ../../../../plasma/desktop/shell/plasmaapp.cpp:312
#32 0x00007f1e28f2935a in qt_static_metacall (_a=<optimized out>, _id=<optimized out>, _o=0x1ac5100, _c=<optimized out>) at ./plasmaapp.moc:119
#33 PlasmaApp::qt_static_metacall (_o=0x1ac5100, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./plasmaapp.moc:97
#34 0x00007f1e25db2446 in QObject::event (this=0x1ac5100, e=<optimized out>) at kernel/qobject.cpp:1195
#35 0x00007f1e2511f5f4 in QApplication::event (this=0x1ac5100, e=0x1c2b2c0) at kernel/qapplication.cpp:2541
#36 0x00007f1e2511b894 in notify_helper (e=0x1c2b2c0, receiver=0x1ac5100, this=0x1af3910) at kernel/qapplication.cpp:4559
#37 QApplicationPrivate::notify_helper (this=0x1af3910, receiver=0x1ac5100, e=0x1c2b2c0) at kernel/qapplication.cpp:4531
#38 0x00007f1e25120713 in QApplication::notify (this=0x1ac5100, receiver=0x1ac5100, e=0x1c2b2c0) at kernel/qapplication.cpp:4420
#39 0x00007f1e26a7c9e6 in KApplication::notify (this=0x1ac5100, receiver=0x1ac5100, event=0x1c2b2c0) at ../../kdeui/kernel/kapplication.cpp:311
#40 0x00007f1e25d98e9c in QCoreApplication::notifyInternal (this=0x1ac5100, receiver=0x1ac5100, event=0x1c2b2c0) at kernel/qcoreapplication.cpp:876
#41 0x00007f1e25d9cc6a in sendEvent (event=0x1c2b2c0, receiver=0x1ac5100) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#42 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1a711f0) at kernel/qcoreapplication.cpp:1500
#43 0x00007f1e25dc7f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#44 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#45 0x00007f1e1cda4d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f1e1cda50a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f1e1cda5164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f1e25dc83bf in QEventDispatcherGlib::processEvents (this=0x1a72ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#49 0x00007f1e251c3d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f1e25d97c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f1e25d97ed7 in QEventLoop::exec (this=0x7fff400d9b10, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007f1e25d9cf67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#53 0x00007f1e28f0ea13 in kdemain (argc=1, argv=0x7fff400d9ef8) at ../../../../plasma/desktop/shell/main.cpp:120
#54 0x00007f1e28b3176d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=1, ubp_av=0x7fff400d9ef8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff400d9ee8) at libc-start.c:226
#55 0x0000000000400671 in _start ()

Reported using DrKonqi