gdmsetup crashed with SIGSEGV in strcmp()

[Pako]

Binary package hint: gdm

crash when unlock button is pressed

ProblemType: Crash
Architecture: i386
Date: Sat Aug 8 10:53:59 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/gdmsetup
NonfreeKernelModules: nvidia
Package: gdm 2.27.4-0ubuntu9
ProcCmdline: gdmsetup
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-5.24-generic
SegvAnalysis:
 Segfault happened at: 0xb3ca98 <strcmp+8>: mov (%ecx),%al
 PC (0x00b3ca98) ok
 source "(%ecx)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%al" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gdm
StacktraceTop:
 strcmp () from /lib/tls/i686/cmov/libc.so.6
 ?? ()
 g_cclosure_marshal_VOID__VOID ()
 g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
 ?? () from /usr/lib/libgobject-2.0.so.0
Title: gdmsetup crashed with SIGSEGV in strcmp()
Uname: Linux 2.6.31-5-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare