Application: plasma-desktop (0.3)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-ARCH x86_64
Distribution: "Arch Linux - A simple, lightweight linux distribution."

-- Information about the crash:
Probably related to other bug reports.  Appears that after a number of kwin crashes that kwin effects were turned off which seems to have a connection.  Now plasma desktop, kwin and krunner all crash leaving black desktop.

The crash can be reproduced every time.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Bus error
[KCrash Handler]
#5  0x00007f030e3e108b in KPixmapCache::Private::mmapFile(QString const&, KPixmapCache::Private::MmapInfo*, int) () from /usr/lib/libkdeui.so.5
#6  0x00007f030e3e1c44 in KPixmapCache::Private::mmapFiles() () from /usr/lib/libkdeui.so.5
#7  0x00007f030e3e3838 in KPixmapCache::recreateCacheFiles() () from /usr/lib/libkdeui.so.5
#8  0x00007f030e3e3970 in KPixmapCache::Private::checkFileVersion(QString const&) () from /usr/lib/libkdeui.so.5
#9  0x00007f030e3e19f0 in KPixmapCache::Private::init() () from /usr/lib/libkdeui.so.5
#10 0x00007f030e3e1b79 in KPixmapCache::timestamp() const () from /usr/lib/libkdeui.so.5
#11 0x00007f03069f2c8c in Plasma::ThemePrivate::setThemeName(QString const&, bool) () from /usr/lib/libplasma.so.3
#12 0x00007f03069f2f7b in Plasma::Theme::settingsChanged() () from /usr/lib/libplasma.so.3
#13 0x00007f03069f44bb in Plasma::Theme::Theme(QObject*) () from /usr/lib/libplasma.so.3
#14 0x00007f03069f4559 in Plasma::Theme::defaultTheme() () from /usr/lib/libplasma.so.3
#15 0x00007f0301839d0b in PlasmaApp::setupDesktop() () from /usr/lib/libkdeinit4_plasma-desktop.so
#16 0x00007f030183a62d in PlasmaApp::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libkdeinit4_plasma-desktop.so
#17 0x00007f030de424df in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x00007f030de49cff in ?? () from /usr/lib/libQtCore.so.4
#19 0x00007f030de3f133 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#20 0x00007f030cfd75ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007f030cfddbdb in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007f030e362256 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#23 0x00007f030de2f79c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#24 0x00007f030de5c422 in ?? () from /usr/lib/libQtCore.so.4
#25 0x00007f030de58f24 in ?? () from /usr/lib/libQtCore.so.4
#26 0x00007f030949eda2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0x00007f03094a2c18 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#28 0x00007f03094a2dcc in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0x00007f030de58c13 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x00007f030d085d6e in ?? () from /usr/lib/libQtGui.so.4
#31 0x00007f030de2e0c2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0x00007f030de2e49c in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#33 0x00007f030de321db in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#34 0x00007f0301822d22 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#35 0x0000000000406c84 in _start ()

Possible duplicates by query: bug 232788, bug 231520, bug 230929, bug 230809, bug 230170.

Reported using DrKonqi