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: 4.5.1
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
added "microblogger" plasmoid to my panel clicked "configure" set up w/ a twitter account, hit ok , "configure button did not dissapear. went back to configure, un checked show friends hit apply, plasma crashed , (microblogger now shows up as it if were configured after plasma restarted)

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4801)]

Thread 2 (Thread 0x7fd68fea9950 (LWP 4816)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fd6ae4bece9 in QWaitCondition::wait (this=0x1678980, mutex=0x1678978, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007fd6ad3485dc in QHostInfoAgent::run (this=0x1678960) at kernel/qhostinfo.cpp:260
#3  0x00007fd6ae4bdd02 in QThreadPrivate::start (arg=0x1678960) at thread/qthread_unix.cpp:189
#4  0x00007fd6aa38c3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fd6aaf70fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd6aea7e750 (LWP 4801)):
[KCrash Handler]
#5  KConfigGroup::writeEntry (this=0x7fffb6ab68b0, key=0x7fd68c0c0ee6 "password", value=@0x7fffb6ab6820, flags=<value optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:187
#6  0x00007fd6ae080fcd in KConfigGroup::writeEntry (this=0x7fffb6ab68b0, key=0x7fd68c0c0ee6 "password", value=<value optimized out>, flags=<value optimized out>)
    at /build/buildd/kde4libs-4.2.98a/kdecore/config/kconfiggroup.cpp:904
#7  0x00007fd68c0b864d in MicroBlog::downloadHistory (this=0x331ec50) at /build/buildd/kdeplasma-addons-4.2.98/applets/microblog/microblog.cpp:829
#8  0x00007fd68c0bd7e2 in MicroBlog::configAccepted (this=0x331ec50) at /build/buildd/kdeplasma-addons-4.2.98/applets/microblog/microblog.cpp:703
#9  0x00007fd68c0be7d0 in MicroBlog::qt_metacall (this=0x331ec50, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb6ab6c20)
    at /build/buildd/kdeplasma-addons-4.2.98/obj-x86_64-linux-gnu/applets/microblog/microblog.moc:96
#10 0x00007fd6ae5bc8d2 in QMetaObject::activate (sender=0x2726c70, from_signal_index=<value optimized out>, to_signal_index=45, argv=0x7fffb6ab6830) at kernel/qobject.cpp:3120
#11 0x00007fd6acbf81a8 in KDialog::slotButtonClicked (this=0x2726c70, button=4) at /build/buildd/kde4libs-4.2.98a/kdeui/dialogs/kdialog.cpp:854
#12 0x00007fd6acbfa29d in KDialog::qt_metacall (this=0x2726c70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb6ab6e20)
    at /build/buildd/kde4libs-4.2.98a/obj-x86_64-linux-gnu/kdeui/kdialog.moc:184
#13 0x00007fd6accb01a6 in KPageDialog::qt_metacall (this=0x7fffb6ab6820, _c=2349600486, _id=-1230280703, _a=0x7fffb6ab6830)
    at /build/buildd/kde4libs-4.2.98a/obj-x86_64-linux-gnu/kdeui/kpagedialog.moc:64
#14 0x00007fd6acbe6f25 in KConfigDialog::qt_metacall (this=0x7fffb6ab6820, _c=2349600486, _id=-1230280703, _a=0x7fffb6ab6830)
    at /build/buildd/kde4libs-4.2.98a/obj-x86_64-linux-gnu/kdeui/kconfigdialog.moc:78
#15 0x00007fd6ae5bc8d2 in QMetaObject::activate (sender=0x3fa9388, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x7fffb6ab6830) at kernel/qobject.cpp:3120
#16 0x00007fd6ae5bf6fe in QSignalMapper::mapped (this=0x7fffb6ab6820, _t1=4) at .moc/release-shared/moc_qsignalmapper.cpp:95
#17 0x00007fd6ae5bffa0 in QSignalMapper::map (this=0x3fa9388, sender=0x3c32d40) at kernel/qsignalmapper.cpp:266
#18 0x00007fd6ae5c0b90 in QSignalMapper::qt_metacall (this=0x3fa9388, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffb6ab6fa0) at .moc/release-shared/moc_qsignalmapper.cpp:81
#19 0x00007fd6ae5bc8d2 in QMetaObject::activate (sender=0x3c32d40, from_signal_index=<value optimized out>, to_signal_index=30, argv=0x7fffb6ab6830) at kernel/qobject.cpp:3120
#20 0x00007fd6ac192ac7 in QAbstractButton::clicked (this=0x7fffb6ab6820, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#21 0x00007fd6abeedd7b in QAbstractButtonPrivate::emitClicked (this=0x2a5ba30) at widgets/qabstractbutton.cpp:543
#22 0x00007fd6abeef9d2 in QAbstractButtonPrivate::click (this=0x2a5ba30) at widgets/qabstractbutton.cpp:536
#23 0x00007fd6abeefc25 in QAbstractButton::mouseReleaseEvent (this=0x3c32d40, e=0x7fffb6ab7770) at widgets/qabstractbutton.cpp:1115
#24 0x00007fd6abb98def in QWidget::event (this=0x3c32d40, event=0x7fffb6ab7770) at kernel/qwidget.cpp:7521
#25 0x00007fd6abb47b9d in QApplicationPrivate::notify_helper (this=0xff8090, receiver=0x3c32d40, e=0x7fffb6ab7770) at kernel/qapplication.cpp:4057
#26 0x00007fd6abb5054a in QApplication::notify (this=<value optimized out>, receiver=0x3c32d40, e=0x7fffb6ab7770) at kernel/qapplication.cpp:3759
#27 0x00007fd6acc8471b in KApplication::notify (this=0xfb7180, receiver=0x3c32d40, event=0x7fffb6ab7770) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#28 0x00007fd6ae5a6dfc in QCoreApplication::notifyInternal (this=0xfb7180, receiver=0x3c32d40, event=0x7fffb6ab7770) at kernel/qcoreapplication.cpp:610
#29 0x00007fd6abb4f798 in QApplicationPrivate::sendMouseEvent (receiver=0x3c32d40, event=0x7fffb6ab7770, alienWidget=0x3c32d40, nativeWidget=0x2726c70, buttonDown=<value optimized out>, 
    lastMouseReceiver=@0x7fd6ac5a9010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#30 0x00007fd6abbb9789 in QETWidget::translateMouseEvent (this=0x2726c70, event=<value optimized out>) at kernel/qapplication_x11.cpp:4448
#31 0x00007fd6abbb87f5 in QApplication::x11ProcessEvent (this=0xfb7180, event=0x7fffb6ab92f0) at kernel/qapplication_x11.cpp:3566
#32 0x00007fd6abbe0f84 in x11EventSourceDispatch (s=0xffb950, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007fd6aa5db20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0x00007fd6aa5de8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#35 0x00007fd6aa5dea7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0x00007fd6ae5d052f in QEventDispatcherGlib::processEvents (this=0xff7980, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#37 0x00007fd6abbe070f in QGuiEventDispatcherGlib::processEvents (this=0x7fffb6ab6820, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#38 0x00007fd6ae5a56a2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1230268960}) at kernel/qeventloop.cpp:149
#39 0x00007fd6ae5a5a6d in QEventLoop::exec (this=0x7fffb6ab9620, flags={i = -1230268880}) at kernel/qeventloop.cpp:200
#40 0x00007fd6ae5a7d34 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0x00007fd6a391e6bb in kdemain (argc=1, argv=0xfacc80) at /build/buildd/kdebase-workspace-4.2.98/plasma/shells/desktop/main.cpp:50
#42 0x0000000000407215 in launch (argc=1, _name=0xfac4e8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0xfac508 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3c9 "0") at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:676
#43 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1168
#44 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1361
#45 0x0000000000408b26 in main (argc=2, argv=0x7fffb6aba4c8, envp=0x7fffb6aba4e0) at /build/buildd/kde4libs-4.2.98a/kinit/kinit.cpp:1788

Reported using DrKonqi