unity-greeter crashed with SIGSEGV in background_loader_load()

[Nadir Muzaffar]

Occurred after installing packages via partial upgrade and having to boot via recovery mode because of KVM failure during regular start up. Then after booting normally after recovery, error came up during checking for new packages.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity-greeter 0.2.3-0ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic-pae 3.2.6
Uname: Linux 3.2.0-16-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 1.91-0ubuntu1
Architecture: i386
Date: Fri Feb 17 08:46:29 2012
ExecutablePath: /usr/sbin/unity-greeter
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcCmdline: /usr/sbin/unity-greeter
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/false
SegvAnalysis:
 Segfault happened at: 0x8050683: mov (%eax),%eax
 PC (0x08050683) ok
 source "(%eax)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-greeter
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 g_cclosure_marshal_VOID__BOXED () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
 ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0
Title: unity-greeter crashed with SIGSEGV in g_cclosure_marshal_VOID__BOXED()
UpgradeStatus: Upgraded to precise on 2012-02-17 (0 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 background_loader_load (self=0xa0846f8) at background.c:381
 background_load_background (self=<optimized out>, filename=<optimized out>) at background.c:2149
 background_real_size_allocate (base=0x9f8b038, allocation=0xbfbb785c) at background.c:1474
 g_cclosure_marshal_VOID__BOXED (closure=0x9e9a778, return_value=0x0, n_param_values=2, param_values=0xa08fc78, invocation_hint=0xbfbb7640, marshal_data=0x8051b20) at /build/buildd/glib2.0-2.31.16/./gobject/gmarshal.c:574
 g_type_class_meta_marshal (closure=0x9e9a778, return_value=0x0, n_param_values=2, param_values=0xa08fc78, invocation_hint=0xbfbb7640, marshal_data=0x6c) at /build/buildd/glib2.0-2.31.16/./gobject/gclosure.c:885