polkit-gnome-authentication-agent-1 crashed with SIGSEGV in g_datalist_id_set_data_full()

Binary package hint: policykit-1-gnome

Error shown after a log-in to Gnome classic desktop in natty 11.04 alpha.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: policykit-1-gnome 0.99-1ubuntu3
ProcVersionSignature: Ubuntu 2.6.37-11.25-generic 2.6.37-rc7
Uname: Linux 2.6.37-11-generic i686
Architecture: i386
Date: Tue Dec 28 05:54:12 2010
ExecutablePath: /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101202)
ProcCmdline: /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
ProcEnviron:
 LANGUAGE=en_NZ.UTF-8:en
 LANG=en_NZ.UTF-8
 LC_MESSAGES=en_AG.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x1bfe57 <g_datalist_id_set_data_full+727>: cmp 0x4(%esi),%edi
 PC (0x001bfe57) ok
 source "0x4(%esi)" (0x00000024) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: policykit-1-gnome
StacktraceTop:
 g_datalist_id_set_data_full () from /lib/libglib-2.0.so.0
 g_object_unref () from /usr/lib/libgobject-2.0.so.0
 ?? ()
 __libc_start_main () from /lib/libc.so.6
 ?? ()
Title: polkit-gnome-authentication-agent-1 crashed with SIGSEGV in g_datalist_id_set_data_full()
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors: (nautilus:3638): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed