lightdm crashed with SIGSEGV in g_signal_emit_valist()

[Ryan Coe]

This must have happened when starting the machine. The only thing I noticed is that it took longer than normal to get to the gui login prompt.

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: lightdm 1.4.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-6.11-generic 3.8.0-rc7
Uname: Linux 3.8.0-6-generic x86_64
ApportVersion: 2.8-0ubuntu4
Architecture: amd64
Date: Thu Feb 14 08:13:41 2013
ExecutablePath: /usr/sbin/lightdm
InstallationDate: Installed on 2012-11-09 (97 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
LightdmConfig:
 [SeatDefaults]
 user-session=ubuntu
 greeter-session=unity-greeter
MarkForUpload: True
ProcCmdline: lightdm
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
SegvAnalysis:
 Segfault happened at: 0x410518: mov 0x28(%rax),%ecx
 PC (0x00410518) ok
 source "0x28(%rax)" (0xaaaaaaaaaaaaaad2) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: lightdm
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
Title: lightdm crashed with SIGSEGV in g_signal_emit_valist()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

mtime.conffile..etc.init.lightdm.conf: 2013-02-08T09:22:39.022052

[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 #1127251, 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.