Version:            (using KDE 4.3.3)
Installed from:    Gentoo Packages

Other kopete crash, I can talk with my contact because it can be open more than 2min:
Application: Kopete (kopete), signal: Aborted
[Current thread is 0 (LWP 19310)]

Thread 4 (Thread 0x7f9b08dbd910 (LWP 19312)):
#0  0x00007f9b1834f7a6 in *__GI___poll (fds=0x132e5d0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9b148d4d41 in g_main_context_iterate (context=0x1bafc80, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2768
#2  0x00007f9b148d501e in IA__g_main_context_iteration (context=0x1bafc80, may_block=1) at gmain.c:2518
#3  0x00007f9b19e9766e in QEventDispatcherGlib::processEvents (this=0x2126a40, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:329
#4  0x00007f9b19e6e372 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 148622928}) at kernel/qeventloop.cpp:149
#5  0x00007f9b19e6e55c in QEventLoop::exec (this=0x2126a60, flags={i = 148623328}) at kernel/qeventloop.cpp:197
#6  0x00007f9b0c7210ab in QCA::SyncThread::run (this=0x203d0a0) at support/syncthread.cpp:195
#7  0x00007f9b19d90ca4 in QThreadPrivate::start (arg=0x203d0a0) at thread/qthread_unix.cpp:188
#8  0x00007f9b19b1e2b7 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#9  0x00007f9b183587dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f9b085bc910 (LWP 19313)):
#0  0x00007f9b1834f7a6 in *__GI___poll (fds=0x1e36be0, nfds=1, timeout=814) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f9b148d4d41 in g_main_context_iterate (context=0x172c1b0, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2768
#2  0x00007f9b148d501e in IA__g_main_context_iteration (context=0x172c1b0, may_block=1) at gmain.c:2518
#3  0x00007f9b19e9766e in QEventDispatcherGlib::processEvents (this=0x1c01040, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:329
#4  0x00007f9b19e6e372 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 140230544}) at kernel/qeventloop.cpp:149
#5  0x00007f9b19e6e55c in QEventLoop::exec (this=0x13199a0, flags={i = 140230624}) at kernel/qeventloop.cpp:197
#6  0x00007f9b0cb948a3 in XMPP::SyncThread::run (this=0x15599e0) at /var/tmp/portage/kde-base/kopete-4.3.3/work/kopete-4.3.3/kopete/protocols/jabber/libiris/iris/irisnet/corelib/netinterface.cpp:151
#7  0x00007f9b19d90ca4 in QThreadPrivate::start (arg=0x15599e0) at thread/qthread_unix.cpp:188
#8  0x00007f9b19b1e2b7 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#9  0x00007f9b183587dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f9b07dbb910 (LWP 19314)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f9b19d91ab9 in QWaitCondition::wait (this=0x1db8640, mutex=0x1db8638, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f9b1b14e424 in QHostInfoAgent::run (this=0x1db8620) at kernel/qhostinfo.cpp:260
#3  0x00007f9b19d90ca4 in QThreadPrivate::start (arg=0x1db8620) at thread/qthread_unix.cpp:188
#4  0x00007f9b19b1e2b7 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f9b183587dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9b1de87740 (LWP 19310)):
[KCrash Handler]
#5  0x00007f9b182ba315 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f9b182bb811 in *__GI_abort () at abort.c:88
#7  0x00007f9b182f60d8 in __libc_message (do_abort=2, fmt=0x7f9b183a8a78 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#8  0x00007f9b182fb798 in malloc_printerr (action=2, str=0x7f9b183a8bd8 "double free or corruption (fasttop)", ptr=<value optimized out>) at malloc.c:6196
#9  0x00007f9b1830019c in *__GI___libc_free (mem=<value optimized out>) at malloc.c:3716
#10 0x00007f9b0d29b1cf in MSN::Connection::dataArrivedOnSocket (this=0x2e46d50) at /usr/lib/gcc/x86_64-pc-linux-gnu/4.3.4/include/g++-v4/bits/basic_string.h:236
#11 0x00007f9b0d55afa0 in WlmSocket::qt_metacall (this=0x1cbf110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /var/tmp/portage/kde-base/kopete-4.3.3/work/kopete-4.3.3_build/kopete/protocols/wlm/wlmsocket.moc:73
#12 0x00007f9b19e8303a in QMetaObject::activate (sender=0x1cbf110, from_signal_index=<value optimized out>, to_signal_index=4, argv=0xffffffffffffffff) at kernel/qobject.cpp:3101
#13 0x00007f9b1b1818ca in QSslSocket::qt_metacall (this=0x1cbf110, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffbb248b10) at .moc/release-shared/moc_qsslsocket.cpp:114
#14 0x00007f9b0d55af0f in WlmSocket::qt_metacall (this=0x4b6e, _c=19310, _id=6, _a=0xffffffffffffffff)
    at /var/tmp/portage/kde-base/kopete-4.3.3/work/kopete-4.3.3_build/kopete/protocols/wlm/wlmsocket.moc:68
#15 0x00007f9b19e8303a in QMetaObject::activate (sender=0x231e550, from_signal_index=<value optimized out>, to_signal_index=4, argv=0xffffffffffffffff) at kernel/qobject.cpp:3101
#16 0x00007f9b1b1696cf in QAbstractSocketPrivate::canReadNotification (this=0x32b3170) at socket/qabstractsocket.cpp:604
#17 0x00007f9b1b158fe1 in QReadNotifier::event (this=<value optimized out>, e=0x4b6e) at socket/qnativesocketengine.cpp:1036
#18 0x00007f9b18f29895 in QApplicationPrivate::notify_helper (this=0xe66980, receiver=0x230bba0, e=0x7fffbb248fe0) at kernel/qapplication.cpp:4065
#19 0x00007f9b18f3141a in QApplication::notify (this=0x7fffbb2492d0, receiver=0x230bba0, e=0x7fffbb248fe0) at kernel/qapplication.cpp:4030
#20 0x00007f9b1aa755aa in KApplication::notify (this=0x7fffbb2492d0, receiver=0x230bba0, event=0x7fffbb248fe0)
    at /var/tmp/portage/kde-base/kdelibs-4.3.3/work/kdelibs-4.3.3/kdeui/kernel/kapplication.cpp:302
#21 0x00007f9b19e6fd2b in QCoreApplication::notifyInternal (this=0x7fffbb2492d0, receiver=0x230bba0, event=0x7fffbb248fe0) at kernel/qcoreapplication.cpp:606
#22 0x00007f9b19e97939 in socketNotifierSourceDispatch (source=0xe68a90) at kernel/qcoreapplication.h:213
#23 0x00007f9b148d1649 in IA__g_main_context_dispatch (context=0xe68940) at gmain.c:1824
#24 0x00007f9b148d4e68 in g_main_context_iterate (context=0xe68940, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2455
#25 0x00007f9b148d501e in IA__g_main_context_iteration (context=0xe68940, may_block=1) at gmain.c:2518
#26 0x00007f9b19e9764f in QEventDispatcherGlib::processEvents (this=0xe66540, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#27 0x00007f9b18fb8ae8 in QGuiEventDispatcherGlib::processEvents (this=0x4b6e, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#28 0x00007f9b19e6e372 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1155231232}) at kernel/qeventloop.cpp:149
#29 0x00007f9b19e6e55c in QEventLoop::exec (this=0x7fffbb249240, flags={i = -1155231152}) at kernel/qeventloop.cpp:197
#30 0x00007f9b19e7099c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#31 0x0000000000416518 in main (argc=3, argv=0x7fffbb24a108) at /var/tmp/portage/kde-base/kopete-4.3.3/work/kopete-4.3.3/kopete/kopete/main.cpp:104