Version:           unspecified (using KDE 4.6.2) 
OS:                Linux

here is the stacktrace:

Application: Plasma-Desktop-Umgebung (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7ffb951d67c0 (LWP 1782))]

Thread 4 (Thread 0x7ffb7056a700 (LWP 1786)):
#0  0x00007ffb94ad4f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ffb894b7104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb894b7639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb91ce3446 in QEventDispatcherGlib::processEvents (this=0x1136600, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffb91cb7882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ffb91cb7abc in QEventLoop::exec (this=0x7ffb70569cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007ffb91bce924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007ffb91c99c2f in QInotifyFileSystemWatcherEngine::run (this=0x10bbfc0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ffb91bd1175 in QThreadPrivate::start (arg=0x10bbfc0) at thread/qthread_unix.cpp:320
#9  0x00007ffb8753c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007ffb89dbad8c in start_thread (arg=0x7ffb7056a700) at pthread_create.c:304
#11 0x00007ffb94ae204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ffb6e17c700 (LWP 1788)):
#0  0x00007ffb94ad4f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ffb894b7104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb894b79f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb6f4aec44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007ffb894de3e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ffb8753c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#6  0x00007ffb89dbad8c in start_thread (arg=0x7ffb6e17c700) at pthread_create.c:304
#7  0x00007ffb94ae204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#8  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ffb6d551700 (LWP 1789)):
#0  0x00007ffb94ad4f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ffb894b7104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ffb894b7639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ffb91ce3446 in QEventDispatcherGlib::processEvents (this=0x119a620, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007ffb91cb7882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ffb91cb7abc in QEventLoop::exec (this=0x7ffb6d550cd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007ffb91bce924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007ffb91c99c2f in QInotifyFileSystemWatcherEngine::run (this=0x1184870) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007ffb91bd1175 in QThreadPrivate::start (arg=0x1184870) at thread/qthread_unix.cpp:320
#9  0x00007ffb8753c853 in ?? () from /usr/lib/nvidia-current/libGL.so.1
#10 0x00007ffb89dbad8c in start_thread (arg=0x7ffb6d551700) at pthread_create.c:304
#11 0x00007ffb94ae204d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ffb951d67c0 (LWP 1782)):
[KCrash Handler]
#6  0x00007ffb929175df in QString (this=0x1d40075, group=0, state=0) at /usr/include/qt4/QtCore/qstring.h:728
#7  KIconEffect::fingerprint (this=0x1d40075, group=0, state=0) at ../../kdeui/icons/kiconeffect.cpp:169
#8  0x00007ffb9291cfeb in KIconLoaderPrivate::makeCacheKey (this=<value optimized out>, name=..., group=KIconLoader::Desktop, overlays=..., size=24, state=0) at ../../kdeui/icons/kiconloader.cpp:782
#9  0x00007ffb92923d03 in KIconLoader::loadIcon (this=0x1cd8210, _name=<value optimized out>, group=KIconLoader::Desktop, size=24, state=0, overlays=..., path_store=0x0, canReturnNull=false) at ../../kdeui/icons/kiconloader.cpp:1226
#10 0x00007ffb9291bc99 in KIconEngine::pixmap (this=<value optimized out>, size=..., mode=<value optimized out>, state=<value optimized out>) at ../../kdeui/icons/kiconengine.cpp:93
#11 0x00007ffb91122dd5 in QIcon::pixmap (this=<value optimized out>, size=<value optimized out>, mode=<value optimized out>, state=<value optimized out>) at image/qicon.cpp:676
#12 0x00007ffb946c4099 in Plasma::IconWidgetPrivate::decoration (this=0x1daa210, option=<value optimized out>, useHoverEffect=false, usePressedEffect=false) at ../../plasma/widgets/iconwidget.cpp:812
#13 0x00007ffb946c9e51 in Plasma::IconWidget::paint (this=0x14c0150, painter=0x7fffda1a4b60, option=0x945158, widget=<value optimized out>) at ../../plasma/widgets/iconwidget.cpp:1128
#14 0x00007ffb797b13e9 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#15 0x00007ffb9166919d in _q_paintItem (item=<value optimized out>, painter=0x7fffda1a4b60, option=0x945158, widget=0x0, useWindowOpacity=<value optimized out>, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4314
#16 0x00007ffb916694b0 in _q_paintIntoCache (pix=0x7fffda1a5090, item=0x14c0160, pixmapExposed=..., itemToPixmap=..., renderHints=..., option=0x945158, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4352
#17 0x00007ffb9167cce8 in QGraphicsScenePrivate::drawItemHelper (this=0x944f30, item=0x14c0160, painter=0x7fffda1a70a0, option=0x945158, widget=<value optimized out>, painterStateProtection=true) at graphicsview/qgraphicsscene.cpp:4690
#18 0x00007ffb9167d8ba in QGraphicsScenePrivate::draw (this=0x944f30, item=0x14c0160, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, transformPtr=0x7fffda1a5750, exposedRegion=0x1503440, widget=0x11a4aa0, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4962
#19 0x00007ffb9167e565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x944f30, item=0x14c0160, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, exposedRegion=0x1503440, widget=0x11a4aa0, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#20 0x00007ffb9167d730 in QGraphicsScenePrivate::draw (this=0x944f30, item=0xcb2f00, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, transformPtr=0x7fffda1a5d50, exposedRegion=0x1503440, widget=0x11a4aa0, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#21 0x00007ffb9167e565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x944f30, item=0xcb2f00, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, exposedRegion=0x1503440, widget=0x11a4aa0, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#22 0x00007ffb9167d730 in QGraphicsScenePrivate::draw (this=0x944f30, item=0xc43e80, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, transformPtr=0x7fffda1a6350, exposedRegion=0x1503440, widget=0x11a4aa0, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#23 0x00007ffb9167e565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x944f30, item=0xc43e80, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, exposedRegion=0x1503440, widget=0x11a4aa0, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#24 0x00007ffb9167d730 in QGraphicsScenePrivate::draw (this=0x944f30, item=0xb06430, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, transformPtr=0x7fffda1a6950, exposedRegion=0x1503440, widget=0x11a4aa0, opacity=1, effectTransform=0x0, wasDirtyParentSceneTransform=false, drawItem=true) at graphicsview/qgraphicsscene.cpp:4979
#25 0x00007ffb9167e565 in QGraphicsScenePrivate::drawSubtreeRecursive (this=0x944f30, item=0xb06430, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, exposedRegion=0x1503440, widget=0x11a4aa0, parentOpacity=<value optimized out>, effectTransform=0x0) at graphicsview/qgraphicsscene.cpp:4853
#26 0x00007ffb9167ed94 in QGraphicsScenePrivate::drawItems (this=0x944f30, painter=0x7fffda1a70a0, viewTransform=0x7fffda1a6e30, exposedRegion=0x1503440, widget=0x11a4aa0) at graphicsview/qgraphicsscene.cpp:4735
#27 0x00007ffb9169bbd2 in QGraphicsView::paintEvent (this=<value optimized out>, event=<value optimized out>) at graphicsview/qgraphicsview.cpp:3469
#28 0x00007ffb910cac6a in QWidget::event (this=0x1501f00, event=0x7fffda1a79c0) at kernel/qwidget.cpp:8405
#29 0x00007ffb9147aa66 in QFrame::event (this=0x1501f00, e=0x7fffda1a79c0) at widgets/qframe.cpp:557
#30 0x00007ffb9169ce8b in QGraphicsView::viewportEvent (this=0x1501f00, event=0x7fffda1a79c0) at graphicsview/qgraphicsview.cpp:2864
#31 0x00007ffb91cb8627 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x11a4aa0, event=0x7fffda1a79c0) at kernel/qcoreapplication.cpp:846
#32 0x00007ffb910799b1 in QApplicationPrivate::notify_helper (this=0x944220, receiver=0x11a4aa0, e=0x7fffda1a79c0) at kernel/qapplication.cpp:4458
#33 0x00007ffb9107e3aa in QApplication::notify (this=<value optimized out>, receiver=0x11a4aa0, e=0x7fffda1a79c0) at kernel/qapplication.cpp:4341
#34 0x00007ffb92970866 in KApplication::notify (this=0x9329b0, receiver=0x11a4aa0, event=0x7fffda1a79c0) at ../../kdeui/kernel/kapplication.cpp:311
#35 0x00007ffb91cb849c in QCoreApplication::notifyInternal (this=0x9329b0, receiver=0x11a4aa0, event=0x7fffda1a79c0) at kernel/qcoreapplication.cpp:731
#36 0x00007ffb910c7abd in sendSpontaneousEvent (this=0x151a550, pdev=0xea9db8, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1502700) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#37 QWidgetPrivate::drawWidget (this=0x151a550, pdev=0xea9db8, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1502700) at kernel/qwidget.cpp:5492
#38 0x00007ffb910c86d2 in QWidgetPrivate::paintSiblingsRecursive (this=0x1502fb0, pdev=0xea9db8, siblings=..., index=<value optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1502700) at kernel/qwidget.cpp:5699
#39 0x00007ffb910c77fc in QWidgetPrivate::drawWidget (this=0x1502fb0, pdev=0xea9db8, rgn=..., offset=..., flags=<value optimized out>, sharedPainter=0x0, backingStore=0x1502700) at kernel/qwidget.cpp:5545
#40 0x00007ffb9128c2fb in QWidgetBackingStore::sync (this=0x1502700) at painting/qbackingstore.cpp:1333
#41 0x00007ffb910bdf50 in QWidgetPrivate::syncBackingStore (this=0x1502fb0) at kernel/qwidget.cpp:1842
#42 0x00007ffb910cb184 in QWidget::event (this=0x1501f00, event=0x1cd8210) at kernel/qwidget.cpp:8552
#43 0x00007ffb9147aa66 in QFrame::event (this=0x1501f00, e=0x1cd8210) at widgets/qframe.cpp:557
#44 0x00007ffb914fc1fb in QAbstractScrollArea::event (this=0x1501f00, e=0x1cd8210) at widgets/qabstractscrollarea.cpp:996
#45 0x00007ffb94dd3fe6 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#46 0x00007ffb910799e4 in QApplicationPrivate::notify_helper (this=0x944220, receiver=0x1501f00, e=0x1cd8210) at kernel/qapplication.cpp:4462
#47 0x00007ffb9107e3aa in QApplication::notify (this=<value optimized out>, receiver=0x1501f00, e=0x1cd8210) at kernel/qapplication.cpp:4341
#48 0x00007ffb92970866 in KApplication::notify (this=0x9329b0, receiver=0x1501f00, event=0x1cd8210) at ../../kdeui/kernel/kapplication.cpp:311
#49 0x00007ffb91cb849c in QCoreApplication::notifyInternal (this=0x9329b0, receiver=0x1501f00, event=0x1cd8210) at kernel/qcoreapplication.cpp:731
#50 0x00007ffb91cbbc25 in sendEvent (receiver=0x1501f00, event_type=77, data=0x877b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#51 QCoreApplicationPrivate::sendPostedEvents (receiver=0x1501f00, event_type=77, data=0x877b60) at kernel/qcoreapplication.cpp:1372
#52 0x00007ffb9167588a in dispatchPendingUpdateRequests (this=0x944f30) at ../../include/QtGui/private/../../../src/gui/graphicsview/qgraphicsview_p.h:189
#53 QGraphicsScenePrivate::_q_processDirtyItems (this=0x944f30) at graphicsview/qgraphicsscene.cpp:510
#54 0x00007ffb91675caa in QGraphicsScene::qt_metacall (this=0xa5a7b0, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x1879310) at .moc/release-shared/moc_qgraphicsscene.cpp:130
#55 0x00007ffb94617b65 in Plasma::Corona::qt_metacall (this=0xa5a7b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x1879310) at ./corona.moc:109
#56 0x00007ffb94dc8065 in ?? () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#57 0x00007ffb91ccc49a in QObject::event (this=0xa5a7b0, e=<value optimized out>) at kernel/qobject.cpp:1226
#58 0x00007ffb9168258b in QGraphicsScene::event (this=0xa5a7b0, event=0x1c58040) at graphicsview/qgraphicsscene.cpp:3544
#59 0x00007ffb910799e4 in QApplicationPrivate::notify_helper (this=0x944220, receiver=0xa5a7b0, e=0x1c58040) at kernel/qapplication.cpp:4462
#60 0x00007ffb9107e3aa in QApplication::notify (this=<value optimized out>, receiver=0xa5a7b0, e=0x1c58040) at kernel/qapplication.cpp:4341
#61 0x00007ffb92970866 in KApplication::notify (this=0x9329b0, receiver=0xa5a7b0, event=0x1c58040) at ../../kdeui/kernel/kapplication.cpp:311
#62 0x00007ffb91cb849c in QCoreApplication::notifyInternal (this=0x9329b0, receiver=0xa5a7b0, event=0x1c58040) at kernel/qcoreapplication.cpp:731
#63 0x00007ffb91cbbc25 in sendEvent (receiver=0x0, event_type=0, data=0x877b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#64 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x877b60) at kernel/qcoreapplication.cpp:1372
#65 0x00007ffb91ce3253 in sendPostedEvents (s=0x94a1c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#66 postEventSourceDispatch (s=0x94a1c0) at kernel/qeventdispatcher_glib.cpp:277
#67 0x00007ffb894b6bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#68 0x00007ffb894b73a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#69 0x00007ffb894b7639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007ffb91ce33ef in QEventDispatcherGlib::processEvents (this=0x877340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#71 0x00007ffb91120dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#72 0x00007ffb91cb7882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#73 0x00007ffb91cb7abc in QEventLoop::exec (this=0x7fffda1a9960, flags=...) at kernel/qeventloop.cpp:201
#74 0x00007ffb91cbbecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#75 0x00007ffb94dce897 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_plasma-desktop.so
#76 0x00007ffb94a1aeff in __libc_start_main (main=0x400740 <_start+256>, argc=1, ubp_av=0x7fffda1a9d28, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffda1a9d18) at libc-start.c:226
#77 0x0000000000400669 in _start ()


Reproducible: Didn't try