Version:            (using Devel)
Installed from:    Compiled sources

It's possible what is duplicate of other bug, I use kde 4.3.90 and libmsn 4.0 final:
Application: Kopete (kopete), signal: Segmentation fault
The current source language is "auto; currently asm".
[Current thread is 1 (Thread 0x7f5e5a19e760 (LWP 4710))]

Thread 4 (Thread 0x7f5e43034710 (LWP 4781)):
#0  0xffffffffff600132 in ?? ()
#1  0x00007fff375ff671 in ?? ()
#2  0x00007f5e51b8f328 in *__GI_clock_gettime (clock_id=1124284992, tp=0x7f5e43033a40) at ../sysdeps/unix/clock_gettime.c:100
#3  0x00007f5e560a76ff in qt_gettime () at kernel/qcore_unix.cpp:109
#4  0x00007f5e560acd0d in QTimerInfoList::updateCurrentTime (this=0x7f5e43033a40) at kernel/qeventdispatcher_unix.cpp:340
#5  0x00007f5e560acd55 in QTimerInfoList::timerWait (this=0x7f5e43033a40, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#6  0x00007f5e560aa97d in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7f5e43033b5c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007f5e560aaa35 in timerSourcePrepare (source=0x7f5e43033a40, timeout=0x7f5e43033a40) at kernel/qeventdispatcher_glib.cpp:169
#8  0x00007f5e518e01e1 in IA__g_main_context_prepare (context=0x16d5b60, priority=<value optimized out>) at gmain.c:2280
#9  0x00007f5e518e05d1 in g_main_context_iterate (context=0x16d5b60, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2571
#10 0x00007f5e518e0b00 in IA__g_main_context_iteration (context=0x16d5b60, may_block=1) at gmain.c:2654
#11 0x00007f5e560aa706 in QEventDispatcherGlib::processEvents (this=0x130cbd0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:409
#12 0x00007f5e5607ae72 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#13 0x00007f5e5607b314 in QEventLoop::exec (this=0xfded60, flags=) at kernel/qeventloop.cpp:201
#14 0x00007f5e447612a3 in QCA::SyncThread::run (this=0x1004f20) at support/syncthread.cpp:195
#15 0x00007f5e55f75f75 in QThreadPrivate::start (arg=0x1004f20) at thread/qthread_unix.cpp:244
#16 0x00007f5e55ce2894 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#17 0x00007f5e5443df9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f5e42833710 (LWP 4782)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f5e543e5b84 in _L_lock_7723 () from /lib/libc.so.6
#2  0x00007f5e543e2eb7 in malloc_check (sz=113, caller=<value optimized out>) at hooks.c:263
#3  0x00007f5e543d9e15 in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:137
#4  0x00007f5e543df406 in malloc_printerr (action=3, str=0x7f5e5448de58 "malloc(): smallbin double linked list corrupted", ptr=<value optimized out>) at malloc.c:6264
#5  0x00007f5e543e2d95 in _int_malloc (av=0x7f5e546c1e60, bytes=<value optimized out>) at malloc.c:4306
#6  0x00007f5e543e2ed2 in malloc_check (sz=34, caller=<value optimized out>) at hooks.c:264
#7  0x00007f5e55fbe27b in QString (this=0x7f5e42831ff0, unicode=0x80, size=1) at tools/qstring.cpp:980
#8  0x00007f5e55fbe50d in QString::mid (this=<value optimized out>, position=<value optimized out>, n=-1) at tools/qstring.cpp:3267
#9  0x00007f5e55fc6710 in QString::split (this=0x7f5e42832110, sep=..., behavior=<value optimized out>, cs=Qt::CaseSensitive) at tools/qstring.cpp:5910
#10 0x00007f5e44c36d20 in get_linux_gateways () at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90/kopete/protocols/jabber/libiris/iris/irisnet/corelib/netinterface_unix.cpp:248
#11 0x00007f5e44c38376 in XMPP::UnixNet::poll() () from /usr/lib64/kde4/kopete_jabber.so
#12 0x00007f5e44c373b0 in XMPP::UnixNet::check (this=0xdc29a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90/kopete/protocols/jabber/libiris/iris/irisnet/corelib/netinterface_unix.cpp:402
#13 XMPP::UnixNet::qt_metacall (this=0xdc29a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90_build/kopete/protocols/jabber/libiris/netinterface_unix.moc:73
#14 0x00007f5e56091a03 in QMetaObject::activate (sender=0xdc29b8, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0xffffffffffffffff) at kernel/qobject.cpp:3286
#15 0x00007f5e5608e423 in QObject::event (this=0xdc29b8, e=0x80) at kernel/qobject.cpp:1216
#16 0x00007f5e5502a3ac in QApplicationPrivate::notify_helper (this=0x94dc40, receiver=0xdc29b8, e=0x7f5e42832bc0) at kernel/qapplication.cpp:4242
#17 0x00007f5e550332ea in QApplication::notify (this=0x7fff375af160, receiver=<value optimized out>, e=0x7f5e42832bc0) at kernel/qapplication.cpp:4125
#18 0x00007f5e56d0d8b6 in KApplication::notify (this=0x7fff375af160, receiver=0xdc29b8, event=0x7f5e42832bc0)
    at /var/tmp/portage/kde-base/kdelibs-4.3.90/work/kdelibs-4.3.90/kdeui/kernel/kapplication.cpp:302
#19 0x00007f5e5607c9cb in QCoreApplication::notifyInternal (this=0x7fff375af160, receiver=0xdc29b8, event=0x7f5e42832bc0) at kernel/qcoreapplication.cpp:704
#20 0x00007f5e560ae292 in QCoreApplication::sendEvent (this=0xf7c060) at kernel/qcoreapplication.h:215
#21 QTimerInfoList::activateTimers (this=0xf7c060) at kernel/qeventdispatcher_unix.cpp:603
#22 0x00007f5e560aaa98 in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:184
#23 idleTimerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:231
#24 0x00007f5e518dcb2d in g_main_dispatch (context=0x11f2490) at gmain.c:1960
#25 IA__g_main_context_dispatch (context=0x11f2490) at gmain.c:2513
#26 0x00007f5e518e09d8 in g_main_context_iterate (context=0x11f2490, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#27 0x00007f5e518e0b00 in IA__g_main_context_iteration (context=0x11f2490, may_block=1) at gmain.c:2654
#28 0x00007f5e560aa706 in QEventDispatcherGlib::processEvents (this=0x1aae030, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:409
#29 0x00007f5e5607ae72 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#30 0x00007f5e5607b314 in QEventLoop::exec (this=0x1714be0, flags=) at kernel/qeventloop.cpp:201
#31 0x00007f5e44bfee22 in XMPP::SyncThread::run (this=0xf10690) at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90/kopete/protocols/jabber/libiris/iris/irisnet/corelib/netinterface.cpp:151
#32 0x00007f5e55f75f75 in QThreadPrivate::start (arg=0xf10690) at thread/qthread_unix.cpp:244
#33 0x00007f5e55ce2894 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#34 0x00007f5e5443df9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#35 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f5e42032710 (LWP 4783)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f5e55f7707b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x1bf6388, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x1bf6388, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f5e57426fac in QHostInfoAgent::run (this=0x1bf6370) at kernel/qhostinfo.cpp:252
#4  0x00007f5e55f75f75 in QThreadPrivate::start (arg=0x1bf6370) at thread/qthread_unix.cpp:244
#5  0x00007f5e55ce2894 in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007f5e5443df9d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f5e5a19e760 (LWP 4710)):
[KCrash Handler]
#5  memcpy () at ../sysdeps/x86_64/memcpy.S:427
#6  0x00007f5e54c03e5e in std::char_traits<char>::copy (this=0x7f5e546c1e69, __alloc=<value optimized out>, __res=<value optimized out>)
    at /var/tmp/portage/sys-devel/gcc-4.4.2/work/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/char_traits.h:275
#7  std::string::_M_copy (this=0x7f5e546c1e69, __alloc=<value optimized out>, __res=<value optimized out>)
    at /var/tmp/portage/sys-devel/gcc-4.4.2/work/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.h:339
#8  std::string::_Rep::_M_clone (this=0x7f5e546c1e69, __alloc=<value optimized out>, __res=<value optimized out>)
    at /var/tmp/portage/sys-devel/gcc-4.4.2/work/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:609
#9  0x00007f5e54c0493c in std::string::reserve (this=0x2329ea8, __res=<value optimized out>)
    at /var/tmp/portage/sys-devel/gcc-4.4.2/work/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:488
#10 0x00007f5e54c04b88 in std::string::append (this=0x2329ea8, __s=0x7f5e46321414 "\r\n", __n=<value optimized out>)
    at /var/tmp/portage/sys-devel/gcc-4.4.2/work/build/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/basic_string.tcc:309
#11 0x00007f5e4630212c in MSN::P2P::handle_BYE(MSN::SwitchboardServerConnection&, MSN::P2P::p2pPacket&) () from /usr/lib64/libmsn.so.0.2
#12 0x00007f5e462fc27f in MSN::P2P::handleP2Pmessage(MSN::SwitchboardServerConnection&, std::vector<std::string, std::allocator<std::string> >&, std::string, std::string) ()
   from /usr/lib64/libmsn.so.0.2
#13 0x00007f5e462995e1 in MSN::SwitchboardServerConnection::message_p2p(std::vector<std::string, std::allocator<std::string> >&, std::string, std::string) () from /usr/lib64/libmsn.so.0.2
#14 0x00007f5e4629b558 in MSN::SwitchboardServerConnection::handle_MSG(std::vector<std::string, std::allocator<std::string> >&) () from /usr/lib64/libmsn.so.0.2
#15 0x00007f5e46299e77 in MSN::SwitchboardServerConnection::dispatchCommand(std::vector<std::string, std::allocator<std::string> >&) () from /usr/lib64/libmsn.so.0.2
#16 0x00007f5e4629dbf3 in MSN::SwitchboardServerConnection::handleIncomingData() () from /usr/lib64/libmsn.so.0.2
#17 0x00007f5e46296274 in MSN::Connection::dataArrivedOnSocket() () from /usr/lib64/libmsn.so.0.2
#18 0x00007f5e465a1614 in WlmSocket::qt_metacall (this=0x2e70d80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90_build/kopete/protocols/wlm/wlmsocket.moc:79
#19 0x00007f5e56091a03 in QMetaObject::activate (sender=0x2e70d80, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x2a7a) at kernel/qobject.cpp:3286
#20 0x00007f5e57468d2d in QSslSocket::qt_metacall (this=0x2e70d80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff375ae8a0) at .moc/release-shared/moc_qsslsocket.cpp:121
#21 0x00007f5e465a1558 in WlmSocket::qt_metacall (this=0x2397e6f, _c=1416478664, _id=-16391, _a=0x2a7a)
    at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90_build/kopete/protocols/wlm/wlmsocket.moc:74
#22 0x00007f5e56091a03 in QMetaObject::activate (sender=0x2218580, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x2a7a) at kernel/qobject.cpp:3286
#23 0x00007f5e57447aaf in QAbstractSocketPrivate::canReadNotification (this=0x2a7abe0) at socket/qabstractsocket.cpp:626
#24 0x00007f5e57435421 in QReadNotifier::event (this=<value optimized out>, e=0x7f5e546dbfc8) at socket/qnativesocketengine.cpp:1053
#25 0x00007f5e5502a3ac in QApplicationPrivate::notify_helper (this=0x94dc40, receiver=0x2d8acd0, e=0x7fff375aee50) at kernel/qapplication.cpp:4242
#26 0x00007f5e550332ea in QApplication::notify (this=0x7fff375af160, receiver=<value optimized out>, e=0x7fff375aee50) at kernel/qapplication.cpp:4125
#27 0x00007f5e56d0d8b6 in KApplication::notify (this=0x7fff375af160, receiver=0x2d8acd0, event=0x7fff375aee50)
    at /var/tmp/portage/kde-base/kdelibs-4.3.90/work/kdelibs-4.3.90/kdeui/kernel/kapplication.cpp:302
#28 0x00007f5e5607c9cb in QCoreApplication::notifyInternal (this=0x7fff375af160, receiver=0x2d8acd0, event=0x7fff375aee50) at kernel/qcoreapplication.cpp:704
#29 0x00007f5e560aab2a in QCoreApplication::sendEvent (source=0x98c9a0) at kernel/qcoreapplication.h:215
#30 socketNotifierSourceDispatch (source=0x98c9a0) at kernel/qeventdispatcher_glib.cpp:110
#31 0x00007f5e518dcb2d in g_main_dispatch (context=0x98c840) at gmain.c:1960
#32 IA__g_main_context_dispatch (context=0x98c840) at gmain.c:2513
#33 0x00007f5e518e09d8 in g_main_context_iterate (context=0x98c840, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#34 0x00007f5e518e0b00 in IA__g_main_context_iteration (context=0x98c840, may_block=1) at gmain.c:2654
#35 0x00007f5e560aa6b3 in QEventDispatcherGlib::processEvents (this=0x94ca90, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#36 0x00007f5e550d7a2e in QGuiEventDispatcherGlib::processEvents (this=0x2397e6f, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#37 0x00007f5e5607ae72 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#38 0x00007f5e5607b314 in QEventLoop::exec (this=0x7fff375af0b0, flags=) at kernel/qeventloop.cpp:201
#39 0x00007f5e5607f73b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#40 0x0000000000416142 in main (argc=<value optimized out>, argv=<value optimized out>) at /var/tmp/portage/kde-base/kopete-4.3.90/work/kopete-4.3.90/kopete/kopete/main.cpp:105