Application that crashed: kopete
Version of the application: 0.70.90
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-11-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
i don't know how to reproduce this yet, so the onlything i can tell is what i did:
1. closed one or more open chat tabs from users that were offline
2. now a icq-chat tab had the focus  (user online)
3. changed to another jabber-chat tab (user online)
4. as i clicked, kopete passed away

i hope the backtrace is somehow usefull.

 -- Backtrace:
Application: Kopete (kopete), signal: Segmentation fault
[Current thread is 0 (LWP 4625)]

Thread 4 (Thread 0xb2c47b90 (LWP 4628)):
#0  0xb5d23a37 in __pthread_mutex_lock (mutex=0x9fb89bc) at pthread_mutex_lock.c:87
#1  0xb61064b6 in pthread_mutex_lock (mutex=0x9fb89bc) at forward.c:182
#2  0xb5b765de in g_main_context_query () from /usr/lib/libglib-2.0.so.0
#3  0xb5b7ae1c in ?? () from /usr/lib/libglib-2.0.so.0
#4  0xb5b7b268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0xb6e2d1f7 in QEventDispatcherGlib::processEvents (this=0x9e4b7f8, flags={i = -1295748504}) at kernel/qeventdispatcher_glib.cpp:326
#6  0xb6dffdda in QEventLoop::processEvents (this=0x9de4b90, flags={i = -1295748440}) at kernel/qeventloop.cpp:149
#7  0xb6e0021a in QEventLoop::exec (this=0x9de4b90, flags={i = -1295748296}) at kernel/qeventloop.cpp:200
#8  0xb2181e59 in QCA::SyncThread::run () from /usr/lib/libqca.so.2
#9  0xb6d0d56e in QThreadPrivate::start (arg=0x9faee98) at thread/qthread_unix.cpp:189
#10 0xb5d224ff in start_thread (arg=0xb2c47b90) at pthread_create.c:297
#11 0xb60f749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xb1f4bb90 (LWP 4629)):
#0  0xb6e2d356 in timerSourcePrepare (source=0xa0d7920, timeout=0xb1f4b1d8) at kernel/qeventdispatcher_glib.cpp:131
#1  0xb5b7a9c0 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0xb5b7adda in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb5b7b268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0xb6e2d1f7 in QEventDispatcherGlib::processEvents (this=0x9f43d60, flags={i = -1309363512}) at kernel/qeventdispatcher_glib.cpp:326
#5  0xb6dffdda in QEventLoop::processEvents (this=0xa0d2948, flags={i = -1309363448}) at kernel/qeventloop.cpp:149
#6  0xb6e0021a in QEventLoop::exec (this=0xa0d2948, flags={i = -1309363400}) at kernel/qeventloop.cpp:200
#7  0xb23cd672 in ?? () from /usr/lib/kde4/kopete_jabber.so
#8  0xb6d0d56e in QThreadPrivate::start (arg=0xa0d28c8) at thread/qthread_unix.cpp:189
#9  0xb5d224ff in start_thread (arg=0xb1f4bb90) at pthread_create.c:297
#10 0xb60f749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xb174ab90 (LWP 4630)):
#0  0xb802c430 in __kernel_vsyscall ()
#1  0xb5d260e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb61062ed in __pthread_cond_wait (cond=0x9faea50, mutex=0x9faea38) at forward.c:139
#3  0xb6d0e5b2 in QWaitCondition::wait (this=0x9fae780, mutex=0x9fae77c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb75dcae2 in QHostInfoAgent::run (this=0x9fae770) at kernel/qhostinfo.cpp:260
#5  0xb6d0d56e in QThreadPrivate::start (arg=0x9fae770) at thread/qthread_unix.cpp:189
#6  0xb5d224ff in start_thread (arg=0xb174ab90) at pthread_create.c:297
#7  0xb60f749e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb5685700 (LWP 4625)):
[KCrash Handler]
#6  0xb747bbfb in KToolBar::applyAppearanceSettings (this=0xa644d70, cg=@0xbf846e50, forceGlobal=false) at /build/buildd/kde4libs-4.2.90/kdeui/widgets/ktoolbar.cpp:963
#7  0xb747c018 in KToolBar::applySettings (this=0xa644d70, cg=@0xbf846e50, force=false) at /build/buildd/kde4libs-4.2.90/kdeui/widgets/ktoolbar.cpp:926
#8  0xb74471f3 in KMainWindow::applyMainWindowSettings (this=0xa44ab48, cg=@0xbf846efc, force=false) at /build/buildd/kde4libs-4.2.90/kdeui/widgets/kmainwindow.cpp:789
#9  0xb748a057 in KXmlGuiWindow::applyMainWindowSettings (this=0xa44ab48, config=@0xbf846efc, force=<value optimized out>) at /build/buildd/kde4libs-4.2.90/kdeui/xmlgui/kxmlguiwindow.cpp:355
#10 0xb7489676 in KXmlGuiWindow::finalizeGUI (this=0xa44ab48) at /build/buildd/kde4libs-4.2.90/kdeui/xmlgui/kxmlguiwindow.cpp:348
#11 0xb7486e00 in KXMLGUIBuilder::finalizeGUI (this=0xa44ab60) at /build/buildd/kde4libs-4.2.90/kdeui/xmlgui/kxmlguibuilder.cpp:415
#12 0xb74895d7 in KXmlGuiWindow::finalizeGUI (this=0xa44ab48, client=0xb0d5798) at /build/buildd/kde4libs-4.2.90/kdeui/xmlgui/kxmlguiwindow.cpp:364
#13 0xb749806e in KXMLGUIFactory::addClient (this=0xa5db278, client=0xb0d5798) at /build/buildd/kde4libs-4.2.90/kdeui/xmlgui/kxmlguifactory.cpp:276
#14 0xb3014b02 in ?? () from /usr/lib/kde4/kopete_chatwindow.so
#15 0xb301dd6b in ?? () from /usr/lib/kde4/kopete_chatwindow.so
#16 0xb3023780 in ?? () from /usr/lib/kde4/kopete_chatwindow.so
#17 0xb6e17a58 in QMetaObject::activate (sender=0xa647e48, from_signal_index=29, to_signal_index=29, argv=0xbf84714c) at kernel/qobject.cpp:3120
#18 0xb6e186e2 in QMetaObject::activate (sender=0xa647e48, m=0xb6c56cd8, local_signal_index=2, argv=0xbf84714c) at kernel/qobject.cpp:3194
#19 0xb6870d53 in QTabWidget::currentChanged (this=0xa647e48, _t1=0xb082848) at .moc/release-shared/moc_qtabwidget.cpp:208
#20 0xb6872fa2 in QTabWidgetPrivate::_q_showTab (this=0xa646c78, index=1) at widgets/qtabwidget.cpp:727
#21 0xb68730f7 in QTabWidget::qt_metacall (this=0xa647e48, _c=QMetaObject::InvokeMetaMethod, _id=9, _a=0xbf8472cc) at .moc/release-shared/moc_qtabwidget.cpp:136
#22 0xb746cdda in KTabWidget::qt_metacall (this=0xa647e48, _c=QMetaObject::InvokeMetaMethod, _id=36, _a=0xbf8472cc) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kdeui/ktabwidget.moc:124
#23 0xb6e17a58 in QMetaObject::activate (sender=0xb04e3e8, from_signal_index=27, to_signal_index=27, argv=0xbf8472cc) at kernel/qobject.cpp:3120
#24 0xb6e186e2 in QMetaObject::activate (sender=0xb04e3e8, m=0xb6c56b80, local_signal_index=0, argv=0xbf8472cc) at kernel/qobject.cpp:3194
#25 0xb6864643 in QTabBar::currentChanged (this=0xb04e3e8, _t1=1) at .moc/release-shared/moc_qtabbar.cpp:201
#26 0xb686b815 in QTabBar::setCurrentIndex (this=0xb04e3e8, index=1) at widgets/qtabbar.cpp:1176
#27 0xb686cfbd in QTabBar::mousePressEvent (this=0xb04e3e8, event=0xbf847978) at widgets/qtabbar.cpp:1706
#28 0xb746a7d7 in KTabBar::mousePressEvent (this=0xb04e3e8, event=0xbf847978) at /build/buildd/kde4libs-4.2.90/kdeui/widgets/ktabbar.cpp:123
#29 0xb64139c6 in QWidget::event (this=0xb04e3e8, event=0xbf847978) at kernel/qwidget.cpp:7517
#30 0xb686d068 in QTabBar::event (this=0xb04e3e8, event=0xbf847978) at widgets/qtabbar.cpp:1456
#31 0xb63bcbcc in QApplicationPrivate::notify_helper (this=0x9a4fcd8, receiver=0xb04e3e8, e=0xbf847978) at kernel/qapplication.cpp:4057
#32 0xb63c5851 in QApplication::notify (this=0xbf8492dc, receiver=0xb04e3e8, e=0xbf847978) at kernel/qapplication.cpp:3759
#33 0xb735fc4d in KApplication::notify (this=0xbf8492dc, receiver=0xb04e3e8, event=0xbf847978) at /build/buildd/kde4libs-4.2.90/kdeui/kernel/kapplication.cpp:302
#34 0xb6e017ab in QCoreApplication::notifyInternal (this=0xbf8492dc, receiver=0xb04e3e8, event=0xbf847978) at kernel/qcoreapplication.cpp:610
#35 0xb63c48be in QApplicationPrivate::sendMouseEvent (receiver=0xb04e3e8, event=0xbf847978, alienWidget=0x0, nativeWidget=0xb04e3e8, buttonDown=0xb6c68aa0, lastMouseReceiver=@0xb6c68aa4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#36 0xb6434aee in QETWidget::translateMouseEvent (this=0xb04e3e8, event=0xbf84900c) at kernel/qapplication_x11.cpp:4448
#37 0xb6433ead in QApplication::x11ProcessEvent (this=0xbf8492dc, event=0xbf84900c) at kernel/qapplication_x11.cpp:3444
#38 0xb645f06a in x11EventSourceDispatch (s=0x9a52a70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0xb5b77b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0xb5b7b0eb in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb5b7b268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0xb6e2d1d8 in QEventDispatcherGlib::processEvents (this=0x9a4f348, flags={i = -1081830968}) at kernel/qeventdispatcher_glib.cpp:324
#43 0xb645e765 in QGuiEventDispatcherGlib::processEvents (this=0x9a4f348, flags={i = -1081830920}) at kernel/qguieventdispatcher_glib.cpp:202
#44 0xb6dffdda in QEventLoop::processEvents (this=0xbf849270, flags={i = -1081830856}) at kernel/qeventloop.cpp:149
#45 0xb6e0021a in QEventLoop::exec (this=0xbf849270, flags={i = -1081830792}) at kernel/qeventloop.cpp:200
#46 0xb6e026c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#47 0xb63bca47 in QApplication::exec () at kernel/qapplication.cpp:3526
#48 0x08059773 in _start ()

Reported using DrKonqi