Greetings, the kde / kdm crash seems not to be caused by xserver-xfree86, because it happens with ssh -X as well. A friend of mine, asked for a strace [1] thinks it is a kernel-problem. However, the missing sysmbols probably do not cause any trouble down here.
Keep smiling yanosz [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=250919
