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

[meanpt]

Binary package hint: policykit-1-gnome

Crash occurred after running the update manager

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: policykit-1-gnome 0.99-1ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-1.28-generic 2.6.38-rc2
Uname: Linux 2.6.38-1-generic i686
Architecture: i386
CrashCounter: 1
Date: Sun Feb 6 01:55:20 2011
ExecutablePath: /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110202)
ProcCmdline: /usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 LC_MESSAGES=en_US.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xe75ec7 <g_datalist_id_set_data_full+727>: cmp 0x4(%esi),%edi
 PC (0x00e75ec7) 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:1151): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed

[Apport retracing service (apport)]

StacktraceTop:
 g_datalist_id_set_data_full (datalist=0x892a270, key_id=52,
 ?? ()