at-spi2-registryd crashed with signal 5 in g_type_create_instance()

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Booting into the session after upgrading to 12.10 from 12.04.

lsb_release
Description: Ubuntu quantal (development branch)
Release: 12.10

j@j{~}:apt-cache policy at-spi2-core
at-spi2-core:
  Installed: 2.5.4-0ubuntu1
  Candidate: 2.5.4-0ubuntu1
  Version table:
 *** 2.5.4-0ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ quantal/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: at-spi2-core 2.5.4-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic-pae 3.2.24
Uname: Linux 3.2.0-29-generic-pae i686
NonfreeKernelModules: wl
ApportVersion: 2.4-0ubuntu6
Architecture: i386
Date: Sat Aug 4 13:21:26 2012
ExecutablePath: /usr/lib/at-spi2-core/at-spi2-registryd
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
ProcCmdline: /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 TERM=xterm
 LANG=en_US.UTF-8
Signal: 5
SourcePackage: at-spi2-core
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 g_type_create_instance () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: at-spi2-registryd crashed with signal 5 in g_type_create_instance()
UpgradeStatus: Upgraded to quantal on 2012-08-04 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #855123, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.