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 2.6.24-19-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
in the microblogging app none of my frinds appeared, so i checke "show friends" (to re-check it later) but app crashd immediately 

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 6309)]

Thread 2 (Thread 0x7f8ac347b950 (LWP 6313)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f8ae29d1d19 in QWaitCondition::wait (this=0xe21680, mutex=0xe21678, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f8ae185b81c in QHostInfoAgent::run (this=0xe21660) at kernel/qhostinfo.cpp:260
#3  0x00007f8ae29d0d35 in QThreadPrivate::start (arg=0xe21660) at thread/qthread_unix.cpp:188
#4  0x00007f8ade8ca3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f8adf4aefcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f8ae2f8d750 (LWP 6309)):
[KCrash Handler]
#5  KConfigGroup::writeEntry (this=0x7fffeafc9d70, key=0x7f8ac43eef46 "password", value=@0x7fffeafc9ce0, flags=<value optimized out>) at /usr/include/qt4/QtCore/qshareddata.h:187
#6  0x00007f8ae2593fcd in KConfigGroup::writeEntry (this=0x7fffeafc9d70, key=0x7f8ac43eef46 "password", value=<value optimized out>, flags=<value optimized out>)
    at /build/buildd/kde4libs-4.3.0/kdecore/config/kconfiggroup.cpp:904
#7  0x00007f8ac43e66b5 in MicroBlog::downloadHistory (this=0xde3eb0) at /build/buildd/kdeplasma-addons-4.3.0/applets/microblog/microblog.cpp:832
#8  0x00007f8ac43eb842 in MicroBlog::configAccepted (this=0xde3eb0) at /build/buildd/kdeplasma-addons-4.3.0/applets/microblog/microblog.cpp:703
#9  0x00007f8ac43ec830 in MicroBlog::qt_metacall (this=0xde3eb0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffeafca0e0)
    at /build/buildd/kdeplasma-addons-4.3.0/obj-x86_64-linux-gnu/applets/microblog/microblog.moc:96
#10 0x00007f8ae2acfea2 in QMetaObject::activate (sender=0x142eb70, from_signal_index=<value optimized out>, to_signal_index=45, argv=0x7fffeafc9cf0) at kernel/qobject.cpp:3113
#11 0x00007f8ae110c1a8 in KDialog::slotButtonClicked (this=0x142eb70, button=4) at /build/buildd/kde4libs-4.3.0/kdeui/dialogs/kdialog.cpp:854
#12 0x00007f8ae110e29d in KDialog::qt_metacall (this=0x142eb70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffeafca2e0)
    at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kdeui/kdialog.moc:184
#13 0x00007f8ae11c42c6 in KPageDialog::qt_metacall (this=0x7fffeafc9ce0, _c=3292458822, _id=-352543743, _a=0x7fffeafc9cf0)
    at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kdeui/kpagedialog.moc:64
#14 0x00007f8ae10faf25 in KConfigDialog::qt_metacall (this=0x7fffeafc9ce0, _c=3292458822, _id=-352543743, _a=0x7fffeafc9cf0)
    at /build/buildd/kde4libs-4.3.0/obj-x86_64-linux-gnu/kdeui/kconfigdialog.moc:78
#15 0x00007f8ae2acfea2 in QMetaObject::activate (sender=0x11b2e18, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x7fffeafc9cf0) at kernel/qobject.cpp:3113
#16 0x00007f8ae2ad2c3e in QSignalMapper::mapped (this=0x7fffeafc9ce0, _t1=4) at .moc/release-shared/moc_qsignalmapper.cpp:95
#17 0x00007f8ae2ad34e0 in QSignalMapper::map (this=0x11b2e18, sender=0x11ae1f0) at kernel/qsignalmapper.cpp:266
#18 0x00007f8ae2ad40d0 in QSignalMapper::qt_metacall (this=0x11b2e18, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffeafca460) at .moc/release-shared/moc_qsignalmapper.cpp:81
#19 0x00007f8ae2acfea2 in QMetaObject::activate (sender=0x11ae1f0, from_signal_index=<value optimized out>, to_signal_index=30, argv=0x7fffeafc9cf0) at kernel/qobject.cpp:3113
#20 0x00007f8ae06a7e27 in QAbstractButton::clicked (this=0x7fffeafc9ce0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#21 0x00007f8ae0401c6b in QAbstractButtonPrivate::emitClicked (this=0x169f2d0) at widgets/qabstractbutton.cpp:543
#22 0x00007f8ae04038c2 in QAbstractButtonPrivate::click (this=0x169f2d0) at widgets/qabstractbutton.cpp:536
#23 0x00007f8ae0403b15 in QAbstractButton::mouseReleaseEvent (this=0x11ae1f0, e=0x7fffeafcac30) at widgets/qabstractbutton.cpp:1115
#24 0x00007f8ae00d70bf in QWidget::event (this=0x11ae1f0, event=0x7fffeafcac30) at kernel/qwidget.cpp:7549
#25 0x00007f8ae0085f4d in QApplicationPrivate::notify_helper (this=0x6afc70, receiver=0x11ae1f0, e=0x7fffeafcac30) at kernel/qapplication.cpp:4056
#26 0x00007f8ae008e8ea in QApplication::notify (this=<value optimized out>, receiver=0x11ae1f0, e=0x7fffeafcac30) at kernel/qapplication.cpp:3758
#27 0x00007f8ae119871b in KApplication::notify (this=0x66ecb0, receiver=0x11ae1f0, event=0x7fffeafcac30) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:302
#28 0x00007f8ae2aba6ac in QCoreApplication::notifyInternal (this=0x66ecb0, receiver=0x11ae1f0, event=0x7fffeafcac30) at kernel/qcoreapplication.cpp:610
#29 0x00007f8ae008db38 in QApplicationPrivate::sendMouseEvent (receiver=0x11ae1f0, event=0x7fffeafcac30, alienWidget=0x11ae1f0, nativeWidget=0x142eb70, buttonDown=<value optimized out>, 
    lastMouseReceiver=@0x7f8ae0abd010) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#30 0x00007f8ae00f7b19 in QETWidget::translateMouseEvent (this=0x142eb70, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#31 0x00007f8ae00f6b53 in QApplication::x11ProcessEvent (this=0x66ecb0, event=0x7fffeafcc7b0) at kernel/qapplication_x11.cpp:3550
#32 0x00007f8ae011f454 in x11EventSourceDispatch (s=0x6b35d0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0x00007f8adeb1920a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0x00007f8adeb1c8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#35 0x00007f8adeb1ca7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0x00007f8ae2ae3a8f in QEventDispatcherGlib::processEvents (this=0x6af560, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#37 0x00007f8ae011ebdf in QGuiEventDispatcherGlib::processEvents (this=0x7fffeafc9ce0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#38 0x00007f8ae2ab8f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -352531808}) at kernel/qeventloop.cpp:149
#39 0x00007f8ae2ab9314 in QEventLoop::exec (this=0x7fffeafccae0, flags={i = -352531728}) at kernel/qeventloop.cpp:201
#40 0x00007f8ae2abb5e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0x00007f8ad774b1eb in kdemain (argc=1, argv=0x6199b0) at /build/buildd/kdebase-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#42 0x0000000000407215 in launch (argc=1, _name=0x6641f8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x664218 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:676
#43 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1168
#44 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1361
#45 0x0000000000408b26 in main (argc=2, argv=0x7fffeafcd988, envp=0x7fffeafcd9a0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1788

This bug may be a duplicate of or related to bug 200757

Reported using DrKonqi