Application: kopete (1.0.0)
KDE Platform Version: 4.4.1 (KDE 4.4.1) (Compiled from sources)
Qt Version: 4.6.2
Operating System: Linux 2.6.31-gentoo-r10_wald x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
Couldn't reproduce this so far, although I think this wasn't the first time. All I did was disconnect a local PPPoE connection with NetworkManager 0.8.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kopete (kopete), signal: Aborted
Traceback (most recent call last):
  File "/usr/share/gdb/auto-load/usr/lib64/libgobject-2.0.so.0.2200.4-gdb.py", line 9, in <module>
    from gobject import register
  File "/usr/share/glib-2.0/gdb/gobject.py", line 3, in <module>
    import gdb.backtrace
ImportError: No module named backtrace
[Current thread is 1 (Thread 0x7f157c4be760 (LWP 16869))]

Thread 5 (Thread 0x7f155f204710 (LWP 16877)):
#0  0x00007f15767d2b1e in __lll_lock_wait_private () from /lib/libc.so.6
#1  0x00007f157676ddc8 in _L_lock_6671 () from /lib/libc.so.6
#2  0x00007f157676c1a1 in free () from /lib/libc.so.6
#3  0x00007f1573c77df2 in g_source_unref_internal () from /usr/lib/libglib-2.0.so.0
#4  0x00007f15787054ee in QEventDispatcherGlib::~QEventDispatcherGlib() () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007f15785e7e84 in QThreadPrivate::finish(void*) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007f15785e82ad in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007f1578359894 in start_thread () from /lib/libpthread.so.0
#8  0x00007f15767c5f9d in clone () from /lib/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f1556994710 (LWP 16880)):
#0  0xffffffffff600177 in ?? ()
#1  0x00007fff34acb671 in ?? ()
#2  0x00007f1573f24328 in clock_gettime () from /lib/librt.so.1
#3  0x00007f1578701e4f in qt_gettime() () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f1578706b8d in QTimerInfoList::updateCurrentTime() () from /usr/lib64/qt4/libQtCore.so.4
#5  0x00007f1578706bb5 in QTimerInfoList::timerWait(timeval&) () from /usr/lib64/qt4/libQtCore.so.4
#6  0x00007f1578704c2d in timerSourcePrepareHelper(GTimerSource*, int*) () from /usr/lib64/qt4/libQtCore.so.4
#7  0x00007f1578704cd5 in timerSourcePrepare(_GSource*, int*) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007f1573c7b6a1 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#9  0x00007f1573c7ba81 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#10 0x00007f1573c7bfb0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#11 0x00007f1578704a36 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007f15786d9f82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#13 0x00007f15786da354 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#14 0x00007f15592a430b in QCA::SyncThread::run() () from /usr/lib64/qca2/libqca.so.2
#15 0x00007f15785e82a5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f1578359894 in start_thread () from /lib/libpthread.so.0
#17 0x00007f15767c5f9d in clone () from /lib/libc.so.6
#18 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f1556193710 (LWP 16881)):
[KCrash Handler]
#5  0x00007f15767271b5 in raise () from /lib/libc.so.6
#6  0x00007f15767285e0 in abort () from /lib/libc.so.6
#7  0x00007f1576761e77 in __libc_message () from /lib/libc.so.6
#8  0x00007f1576767406 in malloc_printerr () from /lib/libc.so.6
#9  0x00007f157676ad95 in _int_malloc () from /lib/libc.so.6
#10 0x00007f157676c290 in malloc () from /lib/libc.so.6
#11 0x00007f157862f8d0 in QString::fromLatin1_helper(char const*, int) () from /usr/lib64/qt4/libQtCore.so.4
#12 0x00007f157862f99e in QString::fromLatin1(char const*, int) () from /usr/lib64/qt4/libQtCore.so.4
#13 0x00007f15597475d6 in XMPP::UnixNet::poll() () from /usr/lib64/kde4/kopete_jabber.so
#14 0x00007f1559746140 in XMPP::UnixNet::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/kde4/kopete_jabber.so
#15 0x00007f15786ee31f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/qt4/libQtCore.so.4
#16 0x00007f15786eaf93 in QObject::event(QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#17 0x00007f157760c95c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#18 0x00007f1577612fab in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/qt4/libQtGui.so.4
#19 0x00007f15790b9b36 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#20 0x00007f15786db62b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/qt4/libQtCore.so.4
#21 0x00007f1578707f22 in QTimerInfoList::activateTimers() () from /usr/lib64/qt4/libQtCore.so.4
#22 0x00007f1578704d18 in idleTimerSourceDispatch(_GSource*, int (*)(void*), void*) () from /usr/lib64/qt4/libQtCore.so.4
#23 0x00007f1573c784cd in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0x00007f1573c7be88 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#25 0x00007f1573c7bfb0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0x00007f15787049e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#27 0x00007f15786d9f82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#28 0x00007f15786da354 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#29 0x00007f15597119f2 in XMPP::SyncThread::run() () from /usr/lib64/kde4/kopete_jabber.so
#30 0x00007f15785e82a5 in QThreadPrivate::start(void*) () from /usr/lib64/qt4/libQtCore.so.4
#31 0x00007f1578359894 in start_thread () from /lib/libpthread.so.0
#32 0x00007f15767c5f9d in clone () from /lib/libc.so.6
#33 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1555992710 (LWP 16884)):
#0  0x00007f15767bf693 in select () from /lib/libc.so.6
#1  0x00007f15590234c3 in posix_timer_do () from /usr/lib64/libortp.so.8
#2  0x00007f155902421e in rtp_scheduler_schedule () from /usr/lib64/libortp.so.8
#3  0x00007f1578359894 in start_thread () from /lib/libpthread.so.0
#4  0x00007f15767c5f9d in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f157c4be760 (LWP 16869)):
#0  0x00007f15767d2b1e in __lll_lock_wait_private () from /lib/libc.so.6
#1  0x00007f157676ddc8 in _L_lock_6671 () from /lib/libc.so.6
#2  0x00007f157676c1a1 in free () from /lib/libc.so.6
#3  0x00007f1578704e51 in socketNotifierSourceCheck(_GSource*) () from /usr/lib64/qt4/libQtCore.so.4
#4  0x00007f1573c7b399 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#5  0x00007f1573c7bb80 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#6  0x00007f1573c7bfb0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#7  0x00007f15787049e3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#8  0x00007f15776baf7e in QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtGui.so.4
#9  0x00007f15786d9f82 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#10 0x00007f15786da354 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/qt4/libQtCore.so.4
#11 0x00007f15786de03b in QCoreApplication::exec() () from /usr/lib64/qt4/libQtCore.so.4
#12 0x0000000000416112 in main ()

Reported using DrKonqi