Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-12-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Open Network Manager Settings then just click OK button

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 6841)]

Thread 2 (Thread 0xa8470b90 (LWP 6844)):
#0  0xb7f1e430 in __kernel_vsyscall ()
#1  0xb4ff50e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb62452ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb64295b2 in QWaitCondition::wait (this=0x9b80398, mutex=0x9b80394, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7887ae2 in QHostInfoAgent::run (this=0x9b80388) at kernel/qhostinfo.cpp:260
#5  0xb642856e in QThreadPrivate::start (arg=0x9b80388) at thread/qthread_unix.cpp:189
#6  0xb4ff14ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb623649e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb3c20730 (LWP 6841)):
[KCrash Handler]
#6  0xa8918009 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#7  0xa8913c1c in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#8  0xa89141a3 in ?? () from /usr/lib/kde4/plasma_applet_networkmanagement.so
#9  0xb6532a58 in QMetaObject::activate (sender=0xa675478, from_signal_index=45, to_signal_index=45, argv=0x0) at kernel/qobject.cpp:3120
#10 0xb65336e2 in QMetaObject::activate (sender=0xa675478, m=0xb77b2004, local_signal_index=9, argv=0x0) at kernel/qobject.cpp:3194
#11 0xb756fe27 in KDialog::okClicked (this=0xa675478) at /build/buildd/kde4libs-4.2.85/obj-i486-linux-gnu/kdeui/kdialog.moc:252
#12 0xb7572938 in KDialog::slotButtonClicked (this=0xa675478, button=4) at /build/buildd/kde4libs-4.2.85/kdeui/dialogs/kdialog.cpp:848
#13 0xb7573cbc in KDialog::qt_metacall (this=0xa675478, _c=QMetaObject::InvokeMetaMethod, _id=33, _a=0xbf9381ec) at /build/buildd/kde4libs-4.2.85/obj-i486-linux-gnu/kdeui/kdialog.moc:184
#14 0xb763adca in KPageDialog::qt_metacall (this=0xa675478, _c=QMetaObject::InvokeMetaMethod, _id=69, _a=0xbf9381ec) at /build/buildd/kde4libs-4.2.85/obj-i486-linux-gnu/kdeui/kpagedialog.moc:64
#15 0xb755f36a in KConfigDialog::qt_metacall (this=0xa675478, _c=QMetaObject::InvokeMetaMethod, _id=69, _a=0xbf9381ec) at /build/buildd/kde4libs-4.2.85/obj-i486-linux-gnu/kdeui/kconfigdialog.moc:78
#16 0xb6532a58 in QMetaObject::activate (sender=0xa67a620, from_signal_index=4, to_signal_index=4, argv=0xbf9381ec) at kernel/qobject.cpp:3120
#17 0xb65336e2 in QMetaObject::activate (sender=0xa67a620, m=0xb660e878, local_signal_index=0, argv=0xbf9381ec) at kernel/qobject.cpp:3194
#18 0xb6535993 in QSignalMapper::mapped (this=0xa67a620, _t1=4) at .moc/release-shared/moc_qsignalmapper.cpp:95
#19 0xb653621d in QSignalMapper::map (this=0xa67a620, sender=0x9aba4b0) at kernel/qsignalmapper.cpp:266
#20 0xb653640e in QSignalMapper::map (this=0xa67a620) at kernel/qsignalmapper.cpp:257
#21 0xb6536cdb in QSignalMapper::qt_metacall (this=0xa67a620, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0xbf93836c) at .moc/release-shared/moc_qsignalmapper.cpp:81
#22 0xb6532a58 in QMetaObject::activate (sender=0x9aba4b0, from_signal_index=29, to_signal_index=30, argv=0xbf93836c) at kernel/qobject.cpp:3120
#23 0xb6532e90 in QMetaObject::activate (sender=0x9aba4b0, m=0xb704c1e4, from_local_signal_index=2, to_local_signal_index=3, argv=0xbf93836c) at kernel/qobject.cpp:3214
#24 0xb6e63c81 in QAbstractButton::clicked (this=0x9aba4b0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:200
#25 0xb6b8c979 in QAbstractButtonPrivate::emitClicked (this=0x9a88c48) at widgets/qabstractbutton.cpp:543
#26 0xb6b8e5b4 in QAbstractButtonPrivate::click (this=0x9a88c48) at widgets/qabstractbutton.cpp:536
#27 0xb6b8e846 in QAbstractButton::mouseReleaseEvent (this=0x9aba4b0, e=0xbf938948) at widgets/qabstractbutton.cpp:1115
#28 0xb67fe8c3 in QWidget::event (this=0x9aba4b0, event=0xbf938948) at kernel/qwidget.cpp:7521
#29 0xb6b8c81e in QAbstractButton::event (this=0x9aba4b0, e=0xbf938948) at widgets/qabstractbutton.cpp:1077
#30 0xb6c378c0 in QPushButton::event (this=0x9aba4b0, e=0xbf938948) at widgets/qpushbutton.cpp:662
#31 0xb67a7bcc in QApplicationPrivate::notify_helper (this=0x965e138, receiver=0x9aba4b0, e=0xbf938948) at kernel/qapplication.cpp:4057
#32 0xb67b0851 in QApplication::notify (this=0x96554f0, receiver=0x9aba4b0, e=0xbf938948) at kernel/qapplication.cpp:3759
#33 0xb7609c9d in KApplication::notify (this=0x96554f0, receiver=0x9aba4b0, event=0xbf938948) at /build/buildd/kde4libs-4.2.85/kdeui/kernel/kapplication.cpp:307
#34 0xb651c7ab in QCoreApplication::notifyInternal (this=0x96554f0, receiver=0x9aba4b0, event=0xbf938948) at kernel/qcoreapplication.cpp:610
#35 0xb67af8be in QApplicationPrivate::sendMouseEvent (receiver=0x9aba4b0, event=0xbf938948, alienWidget=0x9aba4b0, nativeWidget=0xa675478, buttonDown=0xb7053aa0, lastMouseReceiver=@0xb7053aa4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#36 0xb681faee in QETWidget::translateMouseEvent (this=0xa675478, event=0xbf939fdc) at kernel/qapplication_x11.cpp:4448
#37 0xb681eead in QApplication::x11ProcessEvent (this=0x96554f0, event=0xbf939fdc) at kernel/qapplication_x11.cpp:3444
#38 0xb684a06a in x11EventSourceDispatch (s=0x9660288, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0xb4defb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0xb4df30eb in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb4df3268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0xb65481d8 in QEventDispatcherGlib::processEvents (this=0x965d710, flags={i = -1080843880}) at kernel/qeventdispatcher_glib.cpp:324
#43 0xb6849765 in QGuiEventDispatcherGlib::processEvents (this=0x965d710, flags={i = -1080843832}) at kernel/qguieventdispatcher_glib.cpp:202
#44 0xb651adda in QEventLoop::processEvents (this=0xbf93a240, flags={i = -1080843768}) at kernel/qeventloop.cpp:149
#45 0xb651b21a in QEventLoop::exec (this=0xbf93a240, flags={i = -1080843704}) at kernel/qeventloop.cpp:200
#46 0xb651d6c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#47 0xb67a7a47 in QApplication::exec () at kernel/qapplication.cpp:3526
#48 0xb7ec6290 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#49 0x08048712 in _start ()