Application: plasma-desktop (0.4)
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu Natty (development branch)

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

I did no spezial things, he was on over night and in the morning i get this.
I hope the backtrace is useful

The crash can be reproduced some of the time.

-- Backtrace:
Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Illegal instruction
[Current thread is 1 (Thread 0x7f9e8cb147a0 (LWP 2946))]

Thread 3 (Thread 0x7f9e6f146700 (LWP 2947)):
#0  0x00007f9e8c417f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9e80dfa104 in g_main_context_poll (context=0x1497240, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3404
#2  g_main_context_iterate (context=0x1497240, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3086
#3  0x00007f9e80dfa639 in g_main_context_iteration (context=0x1497240, may_block=1) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3154
#4  0x00007f9e89626446 in QEventDispatcherGlib::processEvents (this=0x149b6d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f9e895fa882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f9e895faabc in QEventLoop::exec (this=0x7f9e6f145db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f9e89511924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007f9e895dcc2f in QInotifyFileSystemWatcherEngine::run (this=0x14a4a60) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f9e89514175 in QThreadPrivate::start (arg=0x14a4a60) at thread/qthread_unix.cpp:320
#10 0x00007f9e816fdd8c in start_thread (arg=0x7f9e6f146700) at pthread_create.c:304
#11 0x00007f9e8c42504d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9e6ceb1700 (LWP 2949)):
#0  0x00007f9e817003ce in __pthread_mutex_lock (mutex=0x151af88) at pthread_mutex_lock.c:62
#1  0x00007f9e80df90d3 in g_main_context_prepare (context=0x151af80, priority=0x7f9e6ceb0c9c) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:2763
#2  0x00007f9e80df9f9d in g_main_context_iterate (context=0x151af80, block=1, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3071
#3  0x00007f9e80dfa639 in g_main_context_iteration (context=0x151af80, may_block=1) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3154
#4  0x00007f9e89626446 in QEventDispatcherGlib::processEvents (this=0x151ad10, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f9e895fa882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f9e895faabc in QEventLoop::exec (this=0x7f9e6ceb0db0, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f9e89511924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#8  0x00007f9e895dcc2f in QInotifyFileSystemWatcherEngine::run (this=0x1316290) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f9e89514175 in QThreadPrivate::start (arg=0x1316290) at thread/qthread_unix.cpp:320
#10 0x00007f9e816fdd8c in start_thread (arg=0x7f9e6ceb1700) at pthread_create.c:304
#11 0x00007f9e8c42504d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9e8cb147a0 (LWP 2946)):
[KCrash Handler]
#6  0x00007f9e88bac486 in gray_hline (worker=0x7fff5d6351e0, x=<value optimized out>, y=<value optimized out>, area=<value optimized out>, acount=1) at painting/qgrayraster.c:1222
#7  0x00007f9e88badea8 in gray_sweep (worker=0x7fff5d6351e0) at painting/qgrayraster.c:1345
#8  gray_convert_glyph (worker=0x7fff5d6351e0) at painting/qgrayraster.c:1730
#9  0x00007f9e88b78afa in QRasterPaintEnginePrivate::rasterize (this=0x20de0a0, outline=<value optimized out>, callback=0x7f9e88b74d20 <qt_span_fill_clipRect(int, QSpan const*, void*)>, userData=<value optimized out>) at painting/qpaintengine_raster.cpp:4240
#10 0x00007f9e88b83e7a in QRasterPaintEngine::fill (this=<value optimized out>, path=..., brush=<value optimized out>) at painting/qpaintengine_raster.cpp:1869
#11 0x00007f9e88af623d in QPaintEngineEx::draw (this=0x20de070, path=...) at painting/qpaintengineex.cpp:597
#12 0x00007f9e8c02122c in Plasma::SignalPlotter::drawPlots (this=0x39fd4d0, p=0x7fff5d638dc0, top=<value optimized out>, w=640, h=<value optimized out>, horizontalScale=1) at ../../plasma/widgets/signalplotter.cpp:1011
#13 0x00007f9e8c0219ba in Plasma::SignalPlotter::drawWidget (this=0x39fd4d0, p=0x7fff5d638dc0, w=640, height=159, horizontalScale=1) at ../../plasma/widgets/signalplotter.cpp:691
#14 0x00007f9e88fac19d in _q_paintItem (item=<value optimized out>, painter=0x7fff5d638dc0, option=0x1060248, widget=0x1825d20, useWindowOpacity=<value optimized out>, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#15 0x00007f9e88fbe414 in QGraphicsScenePrivate::drawItemHelper (this=0x1060020, item=0x39fd4e0, painter=0x7fff5d638dc0, option=0x1060248, widget=0x1825d20, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4427
#16 0x00007f9e88fc08ba in QGraphicsScenePrivate::draw (this=0x1060020, item=0x39fd4e0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, transformPtr=0x7fff5d637470, exposedRegion=0x18248b0, widget=0x1825d20, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#17 0x00007f9e88fc1565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x1060020, item=0x39fd4e0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, exposedRegion=0x18248b0, widget=0x1825d20, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#18 0x00007f9e88fc0730 in QGraphicsScenePrivate::draw (this=0x1060020, item=0x3a0a4a0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, transformPtr=0x7fff5d637a70, exposedRegion=0x18248b0, widget=0x1825d20, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#19 0x00007f9e88fc1565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x1060020, item=0x3a0a4a0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, exposedRegion=0x18248b0, widget=0x1825d20, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#20 0x00007f9e88fc0730 in QGraphicsScenePrivate::draw (this=0x1060020, item=0x13ff5a0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, transformPtr=0x7fff5d638070, exposedRegion=0x18248b0, widget=0x1825d20, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#21 0x00007f9e88fc1565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x1060020, item=0x13ff5a0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, exposedRegion=0x18248b0, widget=0x1825d20, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#22 0x00007f9e88fc0730 in QGraphicsScenePrivate::draw (this=0x1060020, item=0x13a6ca0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, transformPtr=0x7fff5d638670, exposedRegion=0x18248b0, widget=0x1825d20, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#23 0x00007f9e88fc1565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x1060020, item=0x13a6ca0, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, exposedRegion=0x18248b0, widget=0x1825d20, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#24 0x00007f9e88fc1d94 in QGraphicsScenePrivate::drawItems (this=0x1060020, painter=0x7fff5d638dc0, viewTransform=0x7fff5d638b50, exposedRegion=0x18248b0, widget=0x1825d20) at graphicsview/qgraphicsscene.cpp:4735
#25 0x00007f9e88fdebd2 in QGraphicsView::paintEvent (this=<value optimized out>, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3469
#26 0x00007f9e88a0dc6a in QWidget::event (this=0x14a6ab0, event=0x7fff5d6396e0) at kernel/qwidget.cpp:8405
#27 0x00007f9e88dbda66 in QFrame::event (this=0x14a6ab0, e=0x7fff5d6396e0) at widgets/qframe.cpp:557
#28 0x00007f9e88fdfe8b in QGraphicsView::viewportEvent (this=0x14a6ab0, event=0x7fff5d6396e0) at graphicsview/qgraphicsview.cpp:2864
#29 0x00007f9e895fb627 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x1825d20, event=0x7fff5d6396e0) at kernel/qcoreapplication.cpp:846
#30 0x00007f9e889bc9b1 in QApplicationPrivate::notify_helper (this=0xf7fa40, receiver=0x1825d20, e=0x7fff5d6396e0) at kernel/qapplication.cpp:4458
#31 0x00007f9e889c13aa in QApplication::notify (this=<value optimized out>, receiver=0x1825d20, e=0x7fff5d6396e0) at kernel/qapplication.cpp:4341
#32 0x00007f9e8a2b3866 in KApplication::notify (this=0xf1c790, receiver=0x1825d20, event=0x7fff5d6396e0) at ../../kdeui/kernel/kapplication.cpp:311
#33 0x00007f9e895fb49c in QCoreApplication::notifyInternal (this=0xf1c790, receiver=0x1825d20, event=0x7fff5d6396e0) at kernel/qcoreapplication.cpp:731
#34 0x00007f9e88a0aabd in sendSpontaneousEvent (this=0x1825d50, pdev=0x20a7b20, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x1824b20) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#35 QWidgetPrivate::drawWidget (this=0x1825d50, pdev=0x20a7b20, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x1824b20) at kernel/qwidget.cpp:5492
#36 0x00007f9e88bcf29f in QWidgetBackingStore::sync (this=0x1824b20) at painting/qbackingstore.cpp:1325
#37 0x00007f9e88a00f50 in QWidgetPrivate::syncBackingStore (this=0x1824420) at kernel/qwidget.cpp:1842
#38 0x00007f9e88a0e184 in QWidget::event (this=0x14a6ab0, event=0x1460b60) at kernel/qwidget.cpp:8552
#39 0x00007f9e88dbda66 in QFrame::event (this=0x14a6ab0, e=0x1460b60) at widgets/qframe.cpp:557
#40 0x00007f9e88e3f1fb in QAbstractScrollArea::event (this=0x14a6ab0, e=0x1460b60) at widgets/qabstractscrollarea.cpp:996
#41 0x00007f9e889bc9e4 in QApplicationPrivate::notify_helper (this=0xf7fa40, receiver=0x14a6ab0, e=0x1460b60) at kernel/qapplication.cpp:4462
#42 0x00007f9e889c13aa in QApplication::notify (this=<value optimized out>, receiver=0x14a6ab0, e=0x1460b60) at kernel/qapplication.cpp:4341
#43 0x00007f9e8a2b3866 in KApplication::notify (this=0xf1c790, receiver=0x14a6ab0, event=0x1460b60) at ../../kdeui/kernel/kapplication.cpp:311
#44 0x00007f9e895fb49c in QCoreApplication::notifyInternal (this=0xf1c790, receiver=0x14a6ab0, event=0x1460b60) at kernel/qcoreapplication.cpp:731
#45 0x00007f9e895fec25 in sendEvent (receiver=0x14a6ab0, event_type=77, data=0xec7b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#46 QCoreApplicationPrivate::sendPostedEvents (receiver=0x14a6ab0, event_type=77, data=0xec7b60) at kernel/qcoreapplication.cpp:1372
#47 0x00007f9e88fb888a in dispatchPendingUpdateRequests (this=0x1060020) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#48 QGraphicsScenePrivate::_q_processDirtyItems (this=0x1060020) at graphicsview/qgraphicsscene.cpp:510
#49 0x00007f9e88fb8caa in QGraphicsScene::qt_metacall (this=0x1078e10, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x205bf20) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#50 0x00007f9e8bf5ab65 in Plasma::Corona::qt_metacall (this=0x1078e10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x205bf20) at ./corona.moc:109
#51 0x00007f9e8c70b065 in DesktopCorona::qt_metacall (this=0x1078e10, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x205bf20) at ./desktopcorona.moc:101
#52 0x00007f9e8960f49a in QObject::event (this=0x1078e10, e=<value optimized out>) at kernel/qobject.cpp:1226
#53 0x00007f9e88fc558b in QGraphicsScene::event (this=0x1078e10, event=0x3fbca70) at graphicsview/qgraphicsscene.cpp:3544
#54 0x00007f9e889bc9e4 in QApplicationPrivate::notify_helper (this=0xf7fa40, receiver=0x1078e10, e=0x3fbca70) at kernel/qapplication.cpp:4462
#55 0x00007f9e889c13aa in QApplication::notify (this=<value optimized out>, receiver=0x1078e10, e=0x3fbca70) at kernel/qapplication.cpp:4341
#56 0x00007f9e8a2b3866 in KApplication::notify (this=0xf1c790, receiver=0x1078e10, event=0x3fbca70) at ../../kdeui/kernel/kapplication.cpp:311
#57 0x00007f9e895fb49c in QCoreApplication::notifyInternal (this=0xf1c790, receiver=0x1078e10, event=0x3fbca70) at kernel/qcoreapplication.cpp:731
#58 0x00007f9e895fec25 in sendEvent (receiver=0x0, event_type=0, data=0xec7b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#59 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xec7b60) at kernel/qcoreapplication.cpp:1372
#60 0x00007f9e89626253 in sendPostedEvents (s=0xf825c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#61 postEventSourceDispatch (s=0xf825c0) at kernel/qeventdispatcher_glib.cpp:277
#62 0x00007f9e80df9bcd in g_main_dispatch (context=0xf824e0) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:2440
#63 g_main_context_dispatch (context=0xf824e0) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3013
#64 0x00007f9e80dfa3a8 in g_main_context_iterate (context=0xf824e0, block=<value optimized out>, dispatch=1, self=<value optimized out>) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3091
#65 0x00007f9e80dfa639 in g_main_context_iteration (context=0xf824e0, may_block=1) at /build/buildd/glib2.0-2.28.5/./glib/gmain.c:3154
#66 0x00007f9e896263ef in QEventDispatcherGlib::processEvents (this=0xec7340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#67 0x00007f9e88a63dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#68 0x00007f9e895fa882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#69 0x00007f9e895faabc in QEventLoop::exec (this=0x7fff5d63b220, flags=...) at kernel/qeventloop.cpp:201
#70 0x00007f9e895feecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#71 0x00007f9e8c711897 in kdemain (argc=1, argv=0x7fff5d63b5e8) at ../../../../plasma/desktop/shell/main.cpp:118
#72 0x00007f9e8c35deff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=1, ubp_av=0x7fff5d63b5e8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff5d63b5d8) at libc-start.c:226
#73 0x0000000000400669 in _start ()

Reported using DrKonqi