colord crashed with SIGSEGV in cd_device_register_object()

[Nice Testhouse]

Release Ubuntu 12.10 (Radeon)

"System program problem" error message window is displayed after logging back into a user session.

The steps below will reproduce the issue.Same problem as reported in bug # 1026112

1)Log out of user session
2) log in to guest session
3) log out of guest session
4) log into user session

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: colord 0.1.21-1
ProcVersionSignature: Ubuntu 3.5.0-5.5-generic 3.5.0-rc7
Uname: Linux 3.5.0-5-generic i686
ApportVersion: 2.4-0ubuntu3
Architecture: i386
Date: Wed Jul 18 13:29:17 2012
ExecutablePath: /usr/lib/i386-linux-gnu/colord/colord
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120713.1)
ProcCmdline: /usr/lib/i386-linux-gnu/colord/colord
ProcEnviron:

SegvAnalysis:
 Segfault happened at: 0x8051bc4 <cd_device_register_object+148>: mov 0x8(%eax),%ebx
 PC (0x08051bc4) ok
 source "0x8(%eax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%ebx" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: colord
StacktraceTop:
 cd_device_register_object ()
 ?? ()
 ?? ()
 ?? () from /usr/lib/i386-linux-gnu/libgio-2.0.so.0
 ?? ()
Title: colord crashed with SIGSEGV in cd_device_register_object()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 cd_device_register_object (device=device@entry=0x8ebd170, connection=0x8eb7030, info=0x8eaa6d0, error=0xbff14604) at cd-device.c:1474
 cd_main_device_register_on_bus (device=0x8ebd170, error=<optimized out>) at cd-main.c:399
 cd_main_daemon_method_call (connection_=0x8eb7030, sender=0xb5c03a20 ":1.109", object_path=0xb5c04598 "/org/freedesktop/ColorManager", interface_name=0xb5c045c0 "org.freedesktop.ColorManager", method_name=0xb5c03a50 "CreateDevice", parameters=0x8ec6080, invocation=0xb5c02cc0, user_data=0x0) at cd-main.c:1032
 handle_subtree_introspect (message=0xb7608299, es=0x8ec6080, connection=0xb74325f0) at /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c:6039
 process_subtree_vtable_message_in_idle_cb (_data=0x8e80a10) at /build/buildd/glib2.0-2.33.6/./gio/gdbusconnection.c:6288

[Nice Testhouse (testhouse)]

Same error seen on Intel machine while testing ppa:SIL2100 - Week_30

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nice Testhouse (testhouse)]

Week-30 - same error notification seen on Ubuntu 12.10 quantal (Nvidia) with ppa:SIl2100 after restarting the machine.

Executing the below steps caused the crash notification:
1) sudo apt-get update
2) sudo apt-get dist-upgrade
3) restart