Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-14-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
When I open "Desktop Settings" and chose the "Globe" wallpaper type the screen immediately goes black (even before the UI updates to show the Globe options and before I can select Apply) and then plasma restarts.

The first time I chose the globe (yesterday) it worked and I could interact with its configuration UI, and it did update the desktop wallpaper.  At the time I decided against using it... now I can't seem to revert this decision.

This is a vanilla Kubuntu 9.04 Jaunty Jackalope updated to KDE 4.3 RC1 from the "official" PPA on Launchpad.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 10021)]

Thread 2 (Thread 0xa8527b90 (LWP 10035)):
#0  0xb8012430 in __kernel_vsyscall ()
#1  0xb50d20e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb63132ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb64ff9b2 in QWaitCondition::wait (this=0x9682040, mutex=0x968203c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7989152 in QHostInfoAgent::run (this=0x9682030) at kernel/qhostinfo.cpp:260
#5  0xb64fe96e in QThreadPrivate::start (arg=0x9682030) at thread/qthread_unix.cpp:189
#6  0xb50ce4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb630449e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb3ed6b70 (LWP 10021)):
[KCrash Handler]
#6  0x0ae83000 in ?? ()
#7  0xa296769c in Marble::MarbleModel::setupTextureMapper () from /usr/lib/libmarblewidget.so.4
#8  0xa296eed6 in Marble::MarbleMap::setProjection () from /usr/lib/libmarblewidget.so.4
#9  0xa2a662a7 in ?? () from /usr/lib/kde4/plasma_wallpaper_marble.so
#10 0xb7e958c9 in Plasma::Wallpaper::restore (this=0x9979bf8, config=@0xbfa2f210) at /build/buildd/kde4libs-4.2.98a/plasma/wallpaper.cpp:227
#11 0xb7fa9926 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#12 0xb7fa655c in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#13 0xb6608ca8 in QMetaObject::activate (sender=0xa580450, from_signal_index=32, to_signal_index=32, argv=0xbfa2f33c) at kernel/qobject.cpp:3069
#14 0xb6609932 in QMetaObject::activate (sender=0xa580450, m=0xb71303d8, local_signal_index=5, argv=0xbfa2f33c) at kernel/qobject.cpp:3143
#15 0xb6c9a313 in QComboBox::currentIndexChanged (this=0xa580450, _t1=7) at .moc/release-shared/moc_qcombobox.cpp:297
#16 0xb6c9c45a in QComboBoxPrivate::_q_emitCurrentIndexChanged (this=0x97c3870, index=@0x9d76d58) at widgets/qcombobox.cpp:1205
#17 0xb6c9dd93 in QComboBoxPrivate::setCurrentIndex (this=0x97c3870, mi=@0xbfa2f560) at widgets/qcombobox.cpp:1943
#18 0xb6c9df2e in QComboBoxPrivate::_q_itemSelected (this=0x97c3870, item=@0xbfa2f560) at widgets/qcombobox.cpp:1174
#19 0xb6ca3f9e in QComboBox::qt_metacall (this=0xa580450, _c=QMetaObject::InvokeMetaMethod, _id=12, _a=0xbfa2f51c) at .moc/release-shared/moc_qcombobox.cpp:186
#20 0xb6608ca8 in QMetaObject::activate (sender=0x9282cc8, from_signal_index=27, to_signal_index=27, argv=0xbfa2f51c) at kernel/qobject.cpp:3069
#21 0xb6609932 in QMetaObject::activate (sender=0x9282cc8, m=0xb713d5f4, local_signal_index=0, argv=0xbfa2f51c) at kernel/qobject.cpp:3143
#22 0xb6f573f3 in QComboBoxPrivateContainer::itemSelected (this=0x9282cc8, _t1=@0xbfa2f560) at .moc/release-shared/moc_qcombobox_p.cpp:198
#23 0xb6c9c229 in QComboBoxPrivateContainer::eventFilter (this=0x9282cc8, o=0x960a228, e=0xbfa2fa38) at widgets/qcombobox.cpp:667
#24 0xb65f1c5a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8fc1048, receiver=0x960a228, event=0xbfa2fa38) at kernel/qcoreapplication.cpp:718
#25 0xb689fe7a in QApplicationPrivate::notify_helper (this=0x8fc1048, receiver=0x960a228, e=0xbfa2fa38) at kernel/qapplication.cpp:4080
#26 0xb68a8b11 in QApplication::notify (this=0x8fba788, receiver=0x960a228, e=0xbfa2fa38) at kernel/qapplication.cpp:3786
#27 0xb770a5cd in KApplication::notify (this=0x8fba788, receiver=0x960a228, event=0xbfa2fa38) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#28 0xb65f2a3b in QCoreApplication::notifyInternal (this=0x8fba788, receiver=0x960a228, event=0xbfa2fa38) at kernel/qcoreapplication.cpp:602
#29 0xb68a7b7e in QApplicationPrivate::sendMouseEvent (receiver=0x960a228, event=0xbfa2fa38, alienWidget=0x960a228, nativeWidget=0x9282cc8, buttonDown=0xb714a200, lastMouseReceiver=@0xb714a204)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#30 0xb6917c06 in QETWidget::translateMouseEvent (this=0x9282cc8, event=0xbfa3007c) at kernel/qapplication_x11.cpp:4359
#31 0xb6916ca7 in QApplication::x11ProcessEvent (this=0x8fba788, event=0xbfa3007c) at kernel/qapplication_x11.cpp:3421
#32 0xb6941c6a in x11EventSourceDispatch (s=0x8fc7b68, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb4eccb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb4ed00eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb4ed0268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb661e438 in QEventDispatcherGlib::processEvents (this=0x8fa57f8, flags={i = -1079836104}) at kernel/qeventdispatcher_glib.cpp:323
#37 0xb6941365 in QGuiEventDispatcherGlib::processEvents (this=0x8fa57f8, flags={i = -1079836056}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb65f106a in QEventLoop::processEvents (this=0xbfa302e0, flags={i = -1079835992}) at kernel/qeventloop.cpp:149
#39 0xb65f14aa in QEventLoop::exec (this=0xbfa302e0, flags={i = -1079835928}) at kernel/qeventloop.cpp:200
#40 0xb65f3959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#41 0xb689fd17 in QApplication::exec () at kernel/qapplication.cpp:3553
#42 0xb7fb75d0 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x08048712 in _start ()

Reported using DrKonqi