kdeinit4 crashed with SIGSEGV in QThreadPrivate::start()

[Antonio Lucas]

 lsb_release -rd
Description: Ubuntu karmic (development branch)
Release: 9.10

I do not know what to be suppose to happen
this error occurs in X initialize

ProblemType: Crash
Architecture: i386
Date: Fri Oct 16 10:18:17 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/kdeinit4
NonfreeKernelModules: nvidia
Package: kdelibs-bin 4:4.3.2-0ubuntu6
ProcCmdline: kdeinit4:\ ksmserver\ [kdeinit]
ProcEnviron:
 LANGUAGE=pt_BR:pt:pt_PT
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.47-generic
SegvAnalysis:
 Segfault happened at: 0xc0a846 <_ZN21QDBusAdaptorConnector9relaySlotEPPv+22>: mov 0x4(%edx),%ecx
 PC (0x00c0a846) ok
 source "0x4(%edx)" (0x00000004) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: kde4libs
StacktraceTop:
 ?? () from /usr/lib/libkdeinit4_ksmserver.so
 QThreadPrivate::start (arg=0x0)
 start_thread (arg=0x2137b70) at pthread_create.c:300
 clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
Title: kdeinit4 crashed with SIGSEGV in QThreadPrivate::start()
Uname: Linux 2.6.31-14-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors: (polkit-gnome-authentication-agent-1:4284): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed