unity-greeter crashed with SIGSEGV in lightdm_layout_get_description()

[Nicolas DERIVE]

Starting the system, I got a strange greeter and needed to be in low graphics mode.

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: unity-greeter 13.10.1-0ubuntu4
ProcVersionSignature: Ubuntu 3.10.0-5.14-generic 3.10.2
Uname: Linux 3.10.0-5-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.11-0ubuntu1
Architecture: i386
CrashCounter: 1
Date: Wed Jul 24 21:11:52 2013
ExecutablePath: /usr/sbin/unity-greeter
MarkForUpload: True
ProcCmdline: /usr/sbin/unity-greeter
ProcEnviron:
 SHELL=/bin/false
 PATH=(custom, no user)
 LANG=fr_FR.UTF-8
 LANGUAGE=fr_FR:fr:en_GB:en
 XDG_RUNTIME_DIR=<set>
SegvAnalysis:
 Segfault happened at: 0xb6e23e33 <lightdm_layout_get_description+35>: cmp %eax,(%edx)
 PC (0xb6e23e33) ok
 source "%eax" ok
 destination "(%edx)" (0x00000001) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity-greeter
StacktraceTop:
 lightdm_layout_get_description () from /usr/lib/liblightdm-gobject-1.so.0
 ?? ()
 ?? ()
 g_cclosure_marshal_VOID__VOIDv (closure=0x8978bd0, return_value=0x0, instance=0x89701a8, args=0xbfdfc1c8 "\310\303\337\277", <incomplete sequence \345\266>, marshal_data=0x0, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.37.3/./gobject/gmarshal.c:115
 _g_closure_invoke_va (closure=closure@entry=0x8978bd0, return_value=return_value@entry=0x0, instance=instance@entry=0x89701a8, args=args@entry=0xbfdfc1c8 "\310\303\337\277", <incomplete sequence \345\266>, n_params=0, param_types=0x0) at /build/buildd/glib2.0-2.37.3/./gobject/gclosure.c:840
Title: unity-greeter crashed with SIGSEGV in lightdm_layout_get_description()
UpgradeStatus: Upgraded to saucy on 2013-05-25 (59 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 lightdm_layout_get_description (layout=layout@entry=0x8a14e70) at layout.c:241
 menu_bar_recreate_menu (layouts_in=0x88bfd80, self=0x89400f0) at menubar.c:1889
 menu_bar_set_layouts (self=0x89400f0, layouts=0x88bfd80) at menubar.c:519
 _user_list___lambda28_ (self=0x89701a8) at user-list.c:6950
 __user_list___lambda28__greeter_list_entry_displayed_done (_sender=0x89701a8, self=0x89701a8) at user-list.c:6967

[Launchpad Janitor (janitor)]

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