Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb5c946d0 (LWP 19518)]
0xb62166cc in memcpy () from /lib/libc.so.6
(gdb) bt
#0  0xb62166cc in memcpy () from /lib/libc.so.6
#1  0xb7d82076 in KNetwork::Internal::KSocketBuffer::sendTo (this=0x82bb0b8, dev=0x82bb140, len=-1)
    at /space/kde/sources/4_0/KDE/kdelibs/kdecore/network/k3socketbuffer.cpp:256
#2  0xb7d6bf21 in KNetwork::KBufferedSocket::slotWriteActivity (this=0x82d1720)
    at /space/kde/sources/4_0/KDE/kdelibs/kdecore/network/k3bufferedsocket.cpp:349
#3  0xb7d6bd89 in KNetwork::KBufferedSocket::qt_metacall (this=0x82d1720, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbff6ca9c)
    at /space/kde/builds/4_0/KDE/kdelibs/kdecore/k3bufferedsocket.moc:67
#4  0xb7f2dbd0 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#5  0xb7f2e512 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#6  0xb7f4a823 in QSocketNotifier::activated () from /usr/lib/libQtCore.so.4
#7  0xb7f3392f in QSocketNotifier::event () from /usr/lib/libQtCore.so.4
#8  0xb70dae3d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#9  0xb70e0fd9 in QApplication::notify () from /usr/lib/libQtGui.so.4
#10 0xb7a1cba7 in KApplication::notify (this=0xbff6cff0, receiver=0x82e5910, event=0xbff6cdd0)
    at /space/kde/sources/4_0/KDE/kdelibs/kdeui/kernel/kapplication.cpp:319
#11 0xb7f1c86b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#12 0xb7f3e483 in socketNotifierSourceDispatch () from /usr/lib/libQtCore.so.4
#13 0xb610a446 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#14 0xb610d7e2 in ?? () from /usr/lib/libglib-2.0.so.0
#15 0x080ca690 in ?? ()
#16 0x00000000 in ?? ()
(gdb) up
#1  0xb7d82076 in KNetwork::Internal::KSocketBuffer::sendTo (this=0x82bb0b8, dev=0x82bb140, len=-1)
    at /space/kde/sources/4_0/KDE/kdelibs/kdecore/network/k3socketbuffer.cpp:256
256               memcpy(buf.data() + count, item.data() + offset, item.size() - offset);
(gdb) p buf
$3 = {d = 0x83c7720}
(gdb) p item
$4 = (QByteArray &) @0x84c6238: {d = 0xd0080bda}
(gdb) p offset
$5 = 497
(gdb) p count
$6 = 0
(gdb) p bufsize
$7 = 1460