gdm-session-worker crashed with SIGSEGV in act_user_is_loaded()

[Anass Eljondy]

that happened after I added a theme with tweak tool for gnome3 and rebooted the laptop.
I also changed regional language preferances berfore rebooting, if that may help.

My computer is a Compaq CQ58-d02sl

APU: AMD E1-1500 1,48Ghz With Ati Radeon HD 7310

ProblemType: Crash
DistroRelease: Ubuntu 13.10
Package: gdm 3.10.0.1-0ubuntu1~saucy3 [origin: LP-PPA-gnome3-team-gnome3-staging]
ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
Uname: Linux 3.11.0-15-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Thu Jan 30 12:58:48 2014
ExecutablePath: /usr/lib/gdm/gdm-session-worker
InstallationDate: Installed on 2014-01-30 (0 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MarkForUpload: True
ProcCmdline: gdm-session-worker\ [pam/gdm-password]
SegvAnalysis:
 Segfault happened at: 0x7ff4a6291390 <act_user_is_loaded>: movzbl 0xe8(%rdi),%eax
 PC (0x7ff4a6291390) ok
 source "0xe8(%rdi)" (0x000000e8) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gdm
StacktraceTop:
 act_user_is_loaded () from /usr/lib/libaccountsservice.so.0
 ?? ()
 ?? ()
 ?? ()
 pam_vprompt () from /lib/x86_64-linux-gnu/libpam.so.0
Title: gdm-session-worker crashed with SIGSEGV in act_user_is_loaded()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Ubuntu GNOME (ug-bot)]

StacktraceTop:
 act_user_is_loaded () from /home/darkxst/gnome3-amd64/usr/lib/libaccountsservice.so.0
 ?? ()
 ?? ()
 ?? ()
 pam_vprompt () from /home/darkxst/gnome3-amd64/lib/x86_64-linux-gnu/libpam.so.0