Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-gentoo-r4 x86_64

What I was doing when the application crashed:
After changing the location from "Melbourne, Australia" to "Melbourne International, Australia" then "Melbourne Grand Prix Circuit, Australia" and then back to "Melbourne, Australia" again, plasma crashed. Doing the same again did not result in another crash, so I guess there's a timing/race issue involved too.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  QAbstractItemView::model (this=0x0) at itemviews/qabstractitemview.h:348
#6  0x00007ff866792f3f in WeatherApplet::weatherContent (this=0x2603190, data=@0x5f9c710)
    at /var/tmp/portage/kde-base/kdeplasma-addons-4.3.0/work/kdeplasma-addons-4.3.0/applets/weather/weatherapplet.cpp:552
#7  0x00007ff8667975cd in WeatherApplet::dataUpdated (this=0x2603190, source=@0x7fff4f820970, data=@0x5f9c710)
    at /var/tmp/portage/kde-base/kdeplasma-addons-4.3.0/work/kdeplasma-addons-4.3.0/applets/weather/weatherapplet.cpp:657
#8  0x00007ff86678e75d in WeatherApplet::qt_metacall (this=0x2603190, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff4f820940)
    at /var/tmp/portage/kde-base/kdeplasma-addons-4.3.0/work/kdeplasma-addons-4.3.0_build/applets/weather/weatherapplet.moc:74
#9  0x00007ff8956f7e85 in QMetaObject::activate (sender=0x4ba8be0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3101
#10 0x00007ff88cf37f57 in Plasma::SignalRelay::dataUpdated (this=0x0, _t1=<value optimized out>, _t2=<value optimized out>)
    at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0_build/plasma/datacontainer_p.moc:79
#11 0x00007ff88cf3805e in Plasma::SignalRelay::checkQueueing (this=0x4ba8be0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/private/datacontainer_p.cpp:115
#12 0x00007ff88cf0d0de in Plasma::DataContainer::checkForUpdate (this=0x260d880) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/datacontainer.cpp:170
#13 0x00007ff88cf109a3 in Plasma::DataEngine::timerEvent (this=0x330e530, event=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/plasma/dataengine.cpp:381
#14 0x00007ff8956f47b3 in QObject::event (this=0x330e530, e=0x7fff4f81ec60) at kernel/qobject.cpp:1066
#15 0x00007ff892c10c1d in QApplicationPrivate::notify_helper (this=0x1a01240, receiver=0x330e530, e=0x7fff4f821100) at kernel/qapplication.cpp:4056
#16 0x00007ff892c194fa in QApplication::notify (this=0x19c8a50, receiver=0x330e530, e=0x7fff4f821100) at kernel/qapplication.cpp:4021
#17 0x00007ff893be5cbb in KApplication::notify (this=0x19c8a50, receiver=0x330e530, event=0x7fff4f821100)
    at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#18 0x00007ff8956e5fc3 in QCoreApplication::notifyInternal (this=0x19c8a50, receiver=0x330e530, event=0x7fff4f821100) at kernel/qcoreapplication.cpp:606
#19 0x00007ff89570de4e in QTimerInfoList::activateTimers (this=0x1a04650) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#20 0x00007ff89570abfd in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#21 0x00007ff8916acfd1 in IA__g_main_context_dispatch (context=0x1a03920) at gmain.c:2144
#22 0x00007ff8916b06ad in g_main_context_iterate (context=0x1a03920, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2778
#23 0x00007ff8916b086b in IA__g_main_context_iteration (context=0x1a03920, may_block=1) at gmain.c:2841
#24 0x00007ff89570ab6f in QEventDispatcherGlib::processEvents (this=0x1a002e0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#25 0x00007ff892c961cf in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x00007ff8956e49c2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1333924720}) at kernel/qeventloop.cpp:149
#27 0x00007ff8956e4b5c in QEventLoop::exec (this=0x7fff4f8213b0, flags={i = 1333924800}) at kernel/qeventloop.cpp:197
#28 0x00007ff8956e6b34 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#29 0x00007ff88979a03b in kdemain (argc=1, argv=0x19895c0) at /var/tmp/portage/kde-base/plasma-workspace-4.3.0/work/plasma-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#30 0x0000000000407706 in launch (argc=1, _name=0x19d6d98 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x19d6db8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a523 "0") at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:676
#31 0x0000000000407ee0 in handle_launcher_request (sock=7, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1168
#32 0x000000000040843e in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1361
#33 0x0000000000408aba in main (argc=2, argv=0x7fff4f822238, envp=0x7fff4f822250) at /var/tmp/portage/kde-base/kdelibs-4.3.0/work/kdelibs-4.3.0/kinit/kinit.cpp:1788

Reported using DrKonqi