the debug packages are not installed, moreover, the problem seems in marble itself, not plasma

Just as additional information, I did click the 'download debug packages' (or whatever the exact text is) and installed everything DrKonqi suggested I install.

probably it installed kdelibs and plasma ones.
try to search for marble-debug
or kdeedu-debug or something like that

I installed some more debug symbols, this is what I got, I hope it is of some use:


Application: Plasma Desktop Shell (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb57da710 (LWP 1850))]

Thread 5 (Thread 0xaa7f4b70 (LWP 1851)):
#0  0xb5ad422b in clock_gettime () from /lib/librt.so.1
#1  0xb6ce5265 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6db8d26 in updateCurrentTime (this=0x84338cc, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x84338cc, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb6db755b in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xaa7f411c) at kernel/qeventdispatcher_glib.cpp:136
#6  0xb6db75fd in timerSourcePrepare (source=0x8433898, timeout=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:169
#7  0xb5a280c0 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#8  0xb5a28f22 in ?? () from /usr/lib/libglib-2.0.so.0
#9  0xb5a2960e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#10 0xb6db7da7 in QEventDispatcherGlib::processEvents (this=0x83d94b8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#11 0xb6d8889d in QEventLoop::processEvents (this=0xaa7f42b0, flags=...) at kernel/qeventloop.cpp:149
#12 0xb6d88ac9 in QEventLoop::exec (this=0xaa7f42b0, flags=...) at kernel/qeventloop.cpp:201
#13 0xb6c877a9 in QThread::exec (this=0x8434210) at thread/qthread.cpp:490
#14 0xb6d684ad in QInotifyFileSystemWatcherEngine::run (this=0x8434210) at io/qfilesystemwatcher_inotify.cpp:248
#15 0xb6c8a39a in QThreadPrivate::start (arg=0x8434210) at thread/qthread_unix.cpp:285
#16 0xb6c0eb25 in start_thread () from /lib/libpthread.so.0
#17 0xb5fbe46e in clone () from /lib/libc.so.6

Thread 4 (Thread 0xa965ab70 (LWP 1858)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb5fb70b1 in select () from /lib/libc.so.6
#2  0xb6d67cf8 in QProcessManager::run (this=0xb6ec48b0) at io/qprocess_unix.cpp:245
#3  0xb6c8a39a in QThreadPrivate::start (arg=0xb6ec48b0) at thread/qthread_unix.cpp:285
#4  0xb6c0eb25 in start_thread () from /lib/libpthread.so.0
#5  0xb5fbe46e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xa882bb70 (LWP 9040)):
#0  0xb6c124a8 in __pthread_mutex_unlock_usercnt () from /lib/libpthread.so.0
#1  0xb5a287cb in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0xb5a29108 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb5a2960e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0xb6db7da7 in QEventDispatcherGlib::processEvents (this=0x92dad80, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0xb6d8889d in QEventLoop::processEvents (this=0xa882b2b0, flags=...) at kernel/qeventloop.cpp:149
#6  0xb6d88ac9 in QEventLoop::exec (this=0xa882b2b0, flags=...) at kernel/qeventloop.cpp:201
#7  0xb6c877a9 in QThread::exec (this=0x93dab40) at thread/qthread.cpp:490
#8  0xb6d684ad in QInotifyFileSystemWatcherEngine::run (this=0x93dab40) at io/qfilesystemwatcher_inotify.cpp:248
#9  0xb6c8a39a in QThreadPrivate::start (arg=0x93dab40) at thread/qthread_unix.cpp:285
#10 0xb6c0eb25 in start_thread () from /lib/libpthread.so.0
#11 0xb5fbe46e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xa9fdbb70 (LWP 9047)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb6c13452 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb6c8aa2c in wait (this=0x8484cac, mutex=0x8484ca8, time=30000) at thread/qwaitcondition_unix.cpp:86
#3  QWaitCondition::wait (this=0x8484cac, mutex=0x8484ca8, time=30000) at thread/qwaitcondition_unix.cpp:160
#4  0xb6c7fdf4 in QThreadPoolThread::run (this=0x847bf90) at concurrent/qthreadpool.cpp:140
#5  0xb6c8a39a in QThreadPrivate::start (arg=0x847bf90) at thread/qthread_unix.cpp:285
#6  0xb6c0eb25 in start_thread () from /lib/libpthread.so.0
#7  0xb5fbe46e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb57da710 (LWP 1850)):
[KCrash Handler]
#7  Marble::SunLocator::shadePixelComposite (this=0x8cf2e38, pixcol=@0xa24c4008, dpixcol=@0x0, brightness=0.46109603886823169) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/SunLocator.cpp:224
#8  0xa3a24e49 in Marble::MergedLayerDecorator::paintSunShading (this=0x952ff28) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MergedLayerDecorator.cpp:191
#9  0xa3a25dcc in Marble::MergedLayerDecorator::paint (this=0x952ff28, themeId=..., mapTheme=0x96264a0) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MergedLayerDecorator.cpp:83
#10 0xa3944aff in Marble::MarbleModel::paintTile (this=0x8904cf0, tile=0xa704200, textureLayer=0x94f54e0) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MarbleModel.cpp:911
#11 0xa39f8bb6 in mergeDecorations (this=0x94ba590, stackedTileId=..., usage=Marble::DownloadBrowse, forMergedLayerDecorator=false)
    at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/StackedTileLoader.cpp:505
#12 Marble::StackedTileLoader::loadTile (this=0x94ba590, stackedTileId=..., usage=Marble::DownloadBrowse, forMergedLayerDecorator=false)
    at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/StackedTileLoader.cpp:228
#13 0xa39e2a53 in Marble::AbstractScanlineTextureMapper::nextTile (this=0x9136cb0, posX=@0xbfd50ddc, posY=@0xbfd50dd8)
    at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/AbstractScanlineTextureMapper.cpp:509
#14 0xa39e2bba in Marble::AbstractScanlineTextureMapper::pixelValue (this=0x9136cb0, lon=2.6616270794032171, lat=1.5707963267948966, scanLine=0xb2e6428)
    at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/AbstractScanlineTextureMapper.cpp:172
#15 0xa39e5683 in Marble::EquirectScanlineTextureMapper::mapTexture (this=0x9136cb0, viewParams=0x94ec664) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/EquirectScanlineTextureMapper.cpp:158
#16 0xa3947132 in Marble::MarbleModel::paintGlobe (this=0x8904cf0, painter=0xbfd511a0, viewParams=0x94ec664, redrawBackground=true, dirtyRect=...)
    at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MarbleModel.cpp:633
#17 0xa394ef37 in paintGround (this=0x940b5d8, painter=..., dirtyRect=...) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MarbleMap.cpp:138
#18 Marble::MarbleMap::paint (this=0x940b5d8, painter=..., dirtyRect=...) at /usr/src/debug/kdeedu-4.5.80/marble/src/lib/MarbleMap.cpp:671
#19 0xa7fdb1b8 in Marble::WorldClock::paintInterface (this=0x93da8d8, p=0xbfd5155c, option=0x811c588, contentsRect=...) at /usr/src/debug/kdeedu-4.5.80/marble/src/plasmoid/worldclock.cpp:354
#20 0xb4b53af8 in Plasma::Applet::paint (this=0x93da8d8, painter=0xbfd5155c, option=0x811c588, widget=0x0) at /usr/src/debug/kdelibs-4.5.80/plasma/applet.cpp:1443
#21 0xb6921fe5 in _q_paintItem (item=<value optimized out>, painter=0xbfd5155c, option=0x811c588, widget=0x0, useWindowOpacity=false, painterStateProtection=true)
    at graphicsview/qgraphicsscene.cpp:4314
#22 0xb692233a in _q_paintIntoCache (pix=0xbfd51a3c, item=0x93da8e0, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x8cf3927, painterStateProtection=true)
    at graphicsview/qgraphicsscene.cpp:4352
#23 0xb69375a8 in QGraphicsScenePrivate::drawItemHelper (this=0x811c438, item=0x93da8e0, painter=0xbfd539f4, option=0x811c588, widget=0x921cab8, painterStateProtection=true)
    at graphicsview/qgraphicsscene.cpp:4690
#24 0xb6937f25 in QGraphicsScenePrivate::draw (this=0x811c438, item=0x93da8e0, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0xbfd51de0, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4931
#25 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x93da8e0, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#26 0xb6937fbf in QGraphicsScenePrivate::draw (this=0x811c438, item=0x8c6e648, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0xbfd52240, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4945
#27 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x8c6e648, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#28 0xb6937fbf in QGraphicsScenePrivate::draw (this=0x811c438, item=0x8fa8658, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0x0, exposedRegion=0x8dadfb8, widget=0x921cab8, opacity=1, 
    effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=false) at graphicsview/qgraphicsscene.cpp:4945
#29 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x8fa8658, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#30 0xb6937fbf in QGraphicsScenePrivate::draw (this=0x811c438, item=0x8fa7e00, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0xbfd52b00, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4945
#31 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x8fa7e00, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#32 0xb6937fbf in QGraphicsScenePrivate::draw (this=0x811c438, item=0x8fb5588, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0xbfd52f60, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4945
#33 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x8fb5588, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#34 0xb6937fbf in QGraphicsScenePrivate::draw (this=0x811c438, item=0x9146dd8, painter=0xbfd539f4, viewTransform=0xbfd537dc, transformPtr=0xbfd533c0, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4945
#35 0xb6938cb3 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x811c438, item=0x9146dd8, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8, 
    parentOpacity=1, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#36 0xb6939547 in QGraphicsScenePrivate::drawItems (this=0x811c438, painter=0xbfd539f4, viewTransform=0xbfd537dc, exposedRegion=0x8dadfb8, widget=0x921cab8) at graphicsview/qgraphicsscene.cpp:4735
#37 0xb695a16e in QGraphicsView::paintEvent (this=0x853a288, event=0x0) at graphicsview/qgraphicsview.cpp:3469
#38 0xb246f2a3 in PanelView::paintEvent (this=0x853a288, event=0xbfd540c4) at /usr/src/debug/kdebase-workspace-4.5.80/plasma/desktop/shell/panelview.cpp:1566
#39 0xb62e072a in QWidget::event (this=0x853a288, event=0xbfd540c4) at kernel/qwidget.cpp:8346
#40 0xb66f8cc5 in QFrame::event (this=0x853a288, e=0xbfd540c4) at widgets/qframe.cpp:557
#41 0xb678a391 in QAbstractScrollArea::viewportEvent (this=0x853a288, e=0xbfd540c4) at widgets/qabstractscrollarea.cpp:1043
#42 0xb695b58c in QGraphicsView::viewportEvent (this=0x853a288, event=0xbfd540c4) at graphicsview/qgraphicsview.cpp:2864
#43 0xb678cc86 in viewportEvent (this=0x8c74328, o=0x921cab8, e=0xbfd540c4) at widgets/qabstractscrollarea_p.h:100
#44 QAbstractScrollAreaFilter::eventFilter (this=0x8c74328, o=0x921cab8, e=0xbfd540c4) at widgets/qabstractscrollarea_p.h:116
#45 0xb6d89756 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x80cfbb0, receiver=0x921cab8, event=0xbfd540c4) at kernel/qcoreapplication.cpp:847
#46 0xb62853e4 in QApplicationPrivate::notify_helper (this=0x80cfbb0, receiver=0x921cab8, e=0xbfd540c4) at kernel/qapplication.cpp:4441
#47 0xb628e1e4 in QApplication::notify (this=0x80c9db0, receiver=0x921cab8, e=0xbfd540c4) at kernel/qapplication.cpp:4324
#48 0xb73f5471 in KApplication::notify (this=0x80c9db0, receiver=0x921cab8, event=0xbfd540c4) at /usr/src/debug/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#49 0xb6d895be in QCoreApplication::notifyInternal (this=0x80c9db0, receiver=0x921cab8, event=0xbfd540c4) at kernel/qcoreapplication.cpp:732
#50 0xb62dd3d2 in sendSpontaneousEvent (this=0x8c6dcc0, pdev=0x8de2c14, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8c6c9a0) at ../../src/corelib/kernel/qcoreapplication.h:218
#51 QWidgetPrivate::drawWidget (this=0x8c6dcc0, pdev=0x8de2c14, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x8c6c9a0) at kernel/qwidget.cpp:5433
#52 0xb62de127 in QWidgetPrivate::paintSiblingsRecursive (this=0x8dadc68, pdev=0x8de2c14, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, 
    backingStore=0x8c6c9a0) at kernel/qwidget.cpp:5640
#53 0xb62dd128 in QWidgetPrivate::drawWidget (this=0x8dadc68, pdev=0x8de2c14, rgn=..., offset=..., flags=5, sharedPainter=0x0, backingStore=0x8c6c9a0) at kernel/qwidget.cpp:5486
#54 0xb64cf878 in QWidgetBackingStore::sync (this=0x8c6c9a0) at painting/qbackingstore.cpp:1333
#55 0xb62d08ab in QWidgetPrivate::syncBackingStore (this=0x8dadc68) at kernel/qwidget.cpp:1816
#56 0xb62e11e6 in QWidget::event (this=0x853a288, event=0x8747e08) at kernel/qwidget.cpp:8493
#57 0xb66f8cc5 in QFrame::event (this=0x853a288, e=0x8747e08) at widgets/qframe.cpp:557
#58 0xb678c114 in QAbstractScrollArea::event (this=0x853a288, e=0x8747e08) at widgets/qabstractscrollarea.cpp:996
#59 0xb694dd38 in QGraphicsView::event (this=0x853a288, event=0x8747e08) at graphicsview/qgraphicsview.cpp:2741
#60 0xb246f4b9 in PanelView::event (this=0x853a288, event=0x8747e08) at /usr/src/debug/kdebase-workspace-4.5.80/plasma/desktop/shell/panelview.cpp:1577
#61 0xb6285414 in QApplicationPrivate::notify_helper (this=0x80cfbb0, receiver=0x853a288, e=0x8747e08) at kernel/qapplication.cpp:4445
#62 0xb628e1e4 in QApplication::notify (this=0x80c9db0, receiver=0x853a288, e=0x8747e08) at kernel/qapplication.cpp:4324
#63 0xb73f5471 in KApplication::notify (this=0x80c9db0, receiver=0x853a288, event=0x8747e08) at /usr/src/debug/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#64 0xb6d895be in QCoreApplication::notifyInternal (this=0x80c9db0, receiver=0x853a288, event=0x8747e08) at kernel/qcoreapplication.cpp:732
#65 0xb6d8d34c in sendEvent (receiver=0x853a288, event_type=77, data=0x80582b0) at kernel/qcoreapplication.h:215
#66 QCoreApplicationPrivate::sendPostedEvents (receiver=0x853a288, event_type=77, data=0x80582b0) at kernel/qcoreapplication.cpp:1373
#67 0xb6d8d49c in QCoreApplication::sendPostedEvents (receiver=0x853a288, event_type=77) at kernel/qcoreapplication.cpp:1266
#68 0xb692f4de in dispatchPendingUpdateRequests (this=0x811c438) at ../../src/gui/graphicsview/qgraphicsview_p.h:189
#69 QGraphicsScenePrivate::_q_processDirtyItems (this=0x811c438) at graphicsview/qgraphicsscene.cpp:510
#70 0xb692f90b in QGraphicsScene::qt_metacall (this=0x811d808, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x94113a0) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#71 0xb4b88a52 in Plasma::Corona::qt_metacall (this=0x811d808, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x94113a0) at /usr/src/debug/kdelibs-4.5.80/build/plasma/corona.moc:109
#72 0xb2461a52 in DesktopCorona::qt_metacall (this=0x811d808, _c=QMetaObject::InvokeMetaMethod, _id=18, _a=0x94113a0)
    at /usr/src/debug/kdebase-workspace-4.5.80/build/plasma/desktop/shell/desktopcorona.moc:101
#73 0xb6d8fe5d in QMetaObject::metacall (object=0x811d808, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0x94113a0) at kernel/qmetaobject.cpp:237
#74 0xb6d9a945 in QMetaCallEvent::placeMetaCall (this=0x9101668, object=0x811d808) at kernel/qobject.cpp:534
#75 0xb6d9eb7f in QObject::event (this=0x811d808, e=0x9101668) at kernel/qobject.cpp:1211
#76 0xb693cfc0 in QGraphicsScene::event (this=0x811d808, event=0x9101668) at graphicsview/qgraphicsscene.cpp:3544
#77 0xb6285414 in QApplicationPrivate::notify_helper (this=0x80cfbb0, receiver=0x811d808, e=0x9101668) at kernel/qapplication.cpp:4445
#78 0xb628e137 in QApplication::notify (this=0x80c9db0, receiver=0x811d808, e=0x9101668) at kernel/qapplication.cpp:3845
#79 0xb73f5471 in KApplication::notify (this=0x80c9db0, receiver=0x811d808, event=0x9101668) at /usr/src/debug/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#80 0xb6d895be in QCoreApplication::notifyInternal (this=0x80c9db0, receiver=0x811d808, event=0x9101668) at kernel/qcoreapplication.cpp:732
#81 0xb6d8d34c in sendEvent (receiver=0x0, event_type=0, data=0x80582b0) at kernel/qcoreapplication.h:215
#82 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x80582b0) at kernel/qcoreapplication.cpp:1373
#83 0xb6d8d49c in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1266
#84 0xb6db7bd4 in sendPostedEvents (s=0x80cf0f8) at kernel/qcoreapplication.h:220
#85 postEventSourceDispatch (s=0x80cf0f8) at kernel/qeventdispatcher_glib.cpp:277
#86 0xb5a28b49 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#87 0xb5a29350 in ?? () from /usr/lib/libglib-2.0.so.0
#88 0xb5a2960e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#89 0xb6db7d5b in QEventDispatcherGlib::processEvents (this=0x80a16d8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#90 0xb633b9aa in QGuiEventDispatcherGlib::processEvents (this=0x80a16d8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#91 0xb6d8889d in QEventLoop::processEvents (this=0x93ea2a8, flags=...) at kernel/qeventloop.cpp:149
#92 0xb6d88ac9 in QEventLoop::exec (this=0x93ea2a8, flags=...) at kernel/qeventloop.cpp:201
#93 0xb6321267 in QDragManager::drag (this=0x84adda0, o=0x8d5baa0) at kernel/qdnd_x11.cpp:1981
#94 0xb6299341 in QDrag::exec (this=0x8d5baa0, supportedActions=..., defaultDropAction=Qt::IgnoreAction) at kernel/qdrag.cpp:284
#95 0xb62993e5 in QDrag::exec (this=0x8d5baa0, supportedActions=...) at kernel/qdrag.cpp:239
#96 0xb237a5dd in Plasma::AbstractIcon::mouseMoveEvent (this=0x93a1ed8, event=0xbfd561c4) at /usr/src/debug/kdebase-workspace-4.5.80/libs/plasmagenericshell/abstracticon.cpp:169
#97 0xb68fd116 in QGraphicsItem::sceneEvent (this=0x93a1ee0, event=0xbfd561c4) at graphicsview/qgraphicsitem.cpp:6695
#98 0xb695d216 in QGraphicsWidget::sceneEvent (this=0x93a1ed8, event=0xbfd561c4) at graphicsview/qgraphicswidget.cpp:1175
#99 0xb69285de in QGraphicsScenePrivate::sendEvent (this=0x811c438, item=0x93a1ee0, event=0xbfd561c4) at graphicsview/qgraphicsscene.cpp:1207
#100 0xb69292a8 in QGraphicsScenePrivate::sendMouseEvent (this=0x811c438, mouseEvent=0xbfd561c4) at graphicsview/qgraphicsscene.cpp:1281
#101 0xb6929e53 in QGraphicsScene::mouseMoveEvent (this=0x811d808, mouseEvent=0xbfd561c4) at graphicsview/qgraphicsscene.cpp:4081
#102 0xb693d1b7 in QGraphicsScene::event (this=0x811d808, event=0xbfd561c4) at graphicsview/qgraphicsscene.cpp:3433
#103 0xb6285414 in QApplicationPrivate::notify_helper (this=0x80cfbb0, receiver=0x811d808, e=0xbfd561c4) at kernel/qapplication.cpp:4445
#104 0xb628e137 in QApplication::notify (this=0x80c9db0, receiver=0x811d808, e=0xbfd561c4) at kernel/qapplication.cpp:3845
#105 0xb73f5471 in KApplication::notify (this=0x80c9db0, receiver=0x811d808, event=0xbfd561c4) at /usr/src/debug/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#106 0xb6d895be in QCoreApplication::notifyInternal (this=0x80c9db0, receiver=0x811d808, event=0xbfd561c4) at kernel/qcoreapplication.cpp:732
#107 0xb628337d in sendSpontaneousEvent (receiver=0x811d808, event=0xbfd561c4) at ../../src/corelib/kernel/qcoreapplication.h:218
#108 qt_sendSpontaneousEvent (receiver=0x811d808, event=0xbfd561c4) at kernel/qapplication.cpp:5439
#109 0xb6956a6a in QGraphicsViewPrivate::mouseMoveEventHandler (this=0x93c2d38, event=0xbfd569e4) at graphicsview/qgraphicsview.cpp:647
#110 0xb6956c9e in QGraphicsView::mouseMoveEvent (this=0x939ae00, event=0xbfd569e4) at graphicsview/qgraphicsview.cpp:3274
#111 0xb62e070c in QWidget::event (this=0x939ae00, event=0xbfd569e4) at kernel/qwidget.cpp:8185
#112 0xb66f8cc5 in QFrame::event (this=0x939ae00, e=0xbfd569e4) at widgets/qframe.cpp:557
#113 0xb678a391 in QAbstractScrollArea::viewportEvent (this=0x939ae00, e=0xbfd569e4) at widgets/qabstractscrollarea.cpp:1043
#114 0xb695b58c in QGraphicsView::viewportEvent (this=0x939ae00, event=0xbfd569e4) at graphicsview/qgraphicsview.cpp:2864
#115 0xb678cc86 in viewportEvent (this=0x93d4318, o=0x93d5b70, e=0xbfd569e4) at widgets/qabstractscrollarea_p.h:100
#116 QAbstractScrollAreaFilter::eventFilter (this=0x93d4318, o=0x93d5b70, e=0xbfd569e4) at widgets/qabstractscrollarea_p.h:116
#117 0xb6d89756 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x80cfbb0, receiver=0x93d5b70, event=0xbfd569e4) at kernel/qcoreapplication.cpp:847
#118 0xb62853e4 in QApplicationPrivate::notify_helper (this=0x80cfbb0, receiver=0x93d5b70, e=0xbfd569e4) at kernel/qapplication.cpp:4441
#119 0xb628ec90 in QApplication::notify (this=0xbfd566fc, receiver=0x93d5b70, e=0xbfd569e4) at kernel/qapplication.cpp:4006
#120 0xb73f5471 in KApplication::notify (this=0x80c9db0, receiver=0x93d5b70, event=0xbfd569e4) at /usr/src/debug/kdelibs-4.5.80/kdeui/kernel/kapplication.cpp:311
#121 0xb6d895be in QCoreApplication::notifyInternal (this=0x80c9db0, receiver=0x93d5b70, event=0xbfd569e4) at kernel/qcoreapplication.cpp:732
#122 0xb62864bc in sendSpontaneousEvent (receiver=0x93d5b70, event=0xbfd569e4, alienWidget=0x93d5b70, nativeWidget=0x8b53ab0, buttonDown=0xb6c05c00, lastMouseReceiver=..., spontaneous=true)
    at ../../src/corelib/kernel/qcoreapplication.h:218
#123 QApplicationPrivate::sendMouseEvent (receiver=0x93d5b70, event=0xbfd569e4, alienWidget=0x93d5b70, nativeWidget=0x8b53ab0, buttonDown=0xb6c05c00, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:3103
#124 0xb63124ac in QETWidget::translateMouseEvent (this=0x8b53ab0, event=0xbfd56efc) at kernel/qapplication_x11.cpp:4438
#125 0xb63115ce in QApplication::x11ProcessEvent (this=0x80c9db0, event=0xbfd56efc) at kernel/qapplication_x11.cpp:3442
#126 0xb633bdb0 in x11EventSourceDispatch (s=0x80d21f8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#127 0xb5a28b49 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#128 0xb5a29350 in ?? () from /usr/lib/libglib-2.0.so.0
#129 0xb5a2960e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#130 0xb6db7d5b in QEventDispatcherGlib::processEvents (this=0x80a16d8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#131 0xb633b9aa in QGuiEventDispatcherGlib::processEvents (this=0x80a16d8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#132 0xb6d8889d in QEventLoop::processEvents (this=0xbfd571b4, flags=...) at kernel/qeventloop.cpp:149
#133 0xb6d88ac9 in QEventLoop::exec (this=0xbfd571b4, flags=...) at kernel/qeventloop.cpp:201
#134 0xb6d8d570 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#135 0xb6283114 in QApplication::exec () at kernel/qapplication.cpp:3719
#136 0xb24690ea in kdemain (argc=1, argv=0x80b3188) at /usr/src/debug/kdebase-workspace-4.5.80/plasma/desktop/shell/main.cpp:118
#137 0x0804e521 in launch (argc=1, _name=0x80a1504 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80525a3 "0") at /usr/src/debug/kdelibs-4.5.80/kinit/kinit.cpp:730
#138 0x0804f057 in handle_launcher_request (sock=8, who=<value optimized out>) at /usr/src/debug/kdelibs-4.5.80/kinit/kinit.cpp:1222
#139 0x0804f6fc in handle_requests (waitForPid=<value optimized out>) at /usr/src/debug/kdelibs-4.5.80/kinit/kinit.cpp:1415
#140 0x08050579 in main (argc=) at /usr/src/debug/kdelibs-4.5.80/kinit/kinit.cpp:1901

Add kdeeedu-debug package please and get the backtrace again.

The first lines like "from /usr/lib/libmarblewidget.so.11" are not precise enough for us to see if the bug is a duplicate of another one for example or to see where the problem exactly is.

Yes it's OK now and this has been fixed with 
http://websvn.kde.org/?view=rev&revision=1201749

*** This bug has been marked as a duplicate of bug 258058 ***

*** Bug 271085 has been marked as a duplicate of this bug. ***