Version:           4.1.85 (using Devel)
OS:                Linux
Installed from:    Compiled sources

I got this plasma crash like this:

Login -> RMB on Desktop -> Appearance settings -> Get New Wallpaper
-> Error Message "Error in Loading Data Sources" (or similar) -> "OK"

-> kaboom

Anwendung: Plasma-Arbeitsfläche (plasma), Signal SIGSEGV
[Current thread is 0 (LWP 20587)]

Thread 6 (Thread 0xa8bbeb90 (LWP 20593)):
#0  0xb7f51430 in __kernel_vsyscall ()
#1  0xb5773075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb63859ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb65706f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb78eb532 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb656f6ae in ?? () from /usr/lib/libQtCore.so.4
#6  0xb576f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb63777ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xa838ab90 (LWP 20594)):
#0  0xb7f51430 in __kernel_vsyscall ()
#1  0xb636fc01 in select () from /lib/tls/i686/cmov/libc.so.6
#2  0xb663f150 in ?? () from /usr/lib/libQtCore.so.4
#3  0xb656f6ae in ?? () from /usr/lib/libQtCore.so.4
#4  0xb576f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5  0xb63777ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xa7b6fb90 (LWP 20596)):
#0  0xb7f51430 in __kernel_vsyscall ()
#1  0xb5773075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb63859ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb65706f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xa8e07392 in RenderThread::run (this=0x9e59cd4) at /build/buildd/kdebase-workspace-4.1.85/plasma/wallpapers/image/renderthread.cpp:91
#5  0xb656f6ae in ?? () from /usr/lib/libQtCore.so.4
#6  0xb576f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb63777ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xa736eb90 (LWP 20838)):
#0  0xb7f51430 in __kernel_vsyscall ()
#1  0xb5773075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb63859ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb65706f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xa8e07392 in RenderThread::run (this=0xa4bfff4) at /build/buildd/kdebase-workspace-4.1.85/plasma/wallpapers/image/renderthread.cpp:91
#5  0xb656f6ae in ?? () from /usr/lib/libQtCore.so.4
#6  0xb576f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb63777ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa33aeb90 (LWP 20851)):
#0  0xb7f51430 in __kernel_vsyscall ()
#1  0xb57733a2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6385a44 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb65706cc in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb6565886 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb656f6ae in ?? () from /usr/lib/libQtCore.so.4
#6  0xb576f50f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb63777ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb4586b20 (LWP 20587)):
[KCrash Handler]
#6  KTranslatable (this=0xbff4fd9c, other=@0xa406b40) at /usr/include/qt4/QtCore/qatomic_i386.h:116
#7  0xb7c9939e in KNS::Entry::preview (this=0xa4322a0) at /build/buildd/kde4libs-4.1.85/knewstuff/knewstuff2/core/entry.cpp:175
#8  0xb7ccbd98 in KNS::ItemsModel::data (this=0xa574808, index=@0xbff4fe3c, role=44) at /build/buildd/kde4libs-4.1.85/knewstuff/knewstuff2/ui/itemsmodel.cpp:82
#9  0xb6e812ae in QSortFilterProxyModel::data () from /usr/lib/libQtGui.so.4
#10 0xb7ccde05 in KNS::ItemsViewDelegate::paint (this=0xa539540, painter=0xbff5022c, option=@0xbff50080, index=@0xa572ae0) at /usr/include/qt4/QtCore/qabstractitemmodel.h:367
#11 0xb6e210c2 in QListView::paintEvent () from /usr/lib/libQtGui.so.4
#12 0xb698c74b in QWidget::event () from /usr/lib/libQtGui.so.4
#13 0xb6cc3fd3 in QFrame::event () from /usr/lib/libQtGui.so.4
#14 0xb6d5a7df in QAbstractScrollArea::viewportEvent () from /usr/lib/libQtGui.so.4
#15 0xb6e05ccf in QAbstractItemView::viewportEvent () from /usr/lib/libQtGui.so.4
#16 0xb6d5cd85 in ?? () from /usr/lib/libQtGui.so.4
#17 0xb665f04a in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#18 0xb69348ca in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#19 0xb693c7fa in QApplication::notify () from /usr/lib/libQtGui.so.4
#20 0xb76b1d3d in KApplication::notify (this=0x9c14d58, receiver=0xa534e98, event=0xbff5096c) at /build/buildd/kde4libs-4.1.85/kdeui/kernel/kapplication.cpp:307
#21 0xb665fe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#22 0xb69953de in ?? () from /usr/lib/libQtGui.so.4
#23 0xb698b110 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#24 0xb698b8b2 in QWidgetPrivate::paintSiblingsRecursive () from /usr/lib/libQtGui.so.4
#25 0xb698ad88 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#26 0xb698b8b2 in QWidgetPrivate::paintSiblingsRecursive () from /usr/lib/libQtGui.so.4
#27 0xb698ad88 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#28 0xb698b8b2 in QWidgetPrivate::paintSiblingsRecursive () from /usr/lib/libQtGui.so.4
#29 0xb698ad88 in QWidgetPrivate::drawWidget () from /usr/lib/libQtGui.so.4
#30 0xb6afafae in ?? () from /usr/lib/libQtGui.so.4
#31 0xb6afb4a7 in ?? () from /usr/lib/libQtGui.so.4
#32 0xb698c576 in QWidget::event () from /usr/lib/libQtGui.so.4
#33 0xb69348ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#34 0xb693c7fa in QApplication::notify () from /usr/lib/libQtGui.so.4
#35 0xb76b1d3d in KApplication::notify (this=0x9c14d58, receiver=0xa524940, event=0xac74398) at /build/buildd/kde4libs-4.1.85/kdeui/kernel/kapplication.cpp:307
#36 0xb665fe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#37 0xb6660ae5 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#38 0xb6660cdd in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#39 0xb668a82f in ?? () from /usr/lib/libQtCore.so.4
#40 0xb55b46f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#41 0xb55b7da3 in ?? () from /usr/lib/libglib-2.0.so.0
#42 0xb55b7f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#43 0xb668a478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#44 0xb69ceea5 in ?? () from /usr/lib/libQtGui.so.4
#45 0xb665e52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#46 0xb665e6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#47 0xb6660da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#48 0xb6934767 in QApplication::exec () from /usr/lib/libQtGui.so.4
#49 0xb7ed4ce1 in kdemain (argc=1, argv=0xbff51a54) at /build/buildd/kdebase-workspace-4.1.85/plasma/shells/desktop/main.cpp:58
#50 0x08048712 in main (argc=) at /build/buildd/kdebase-workspace-4.1.85/obj-i486-linux-gnu/plasma/shells/desktop/plasma_qgv_dummy.cpp:3