plymouthd crashed with SIGSEGV in script_obj_deref_direct()

[odror]

I did not trigger it. It happen after unity startup

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: plymouth 0.8.2-2ubuntu28
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11
Uname: Linux 3.2.0-19-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.94.1-0ubuntu2
Architecture: amd64
CrashCounter: 1
Date: Sun Mar 18 09:17:21 2012
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
ExecutablePath: /sbin/plymouthd
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MachineType: Hewlett-Packard h8-1080t
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-19-generic root=UUID=1258dfed-e281-4006-b27f-96a08eb18fd1 ro quiet splash vt.handoff=7
ProcCmdline: /sbin/plymouthd --mode=boot --attach-to-session
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-19-generic root=UUID=1258dfed-e281-4006-b27f-96a08eb18fd1 ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f4e07f89ea0 <script_obj_deref_direct>: cmpl $0x1,(%rdi)
 PC (0x7f4e07f89ea0) ok
 source "$0x1" ok
 destination "(%rdi)" (0x726f207465792079) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: plymouth
StacktraceTop:
 script_obj_deref_direct () from /lib/plymouth/script.so
 script_obj_as_custom () from /lib/plymouth/script.so
 script_execute_object () from /lib/plymouth/script.so
 script_lib_plymouth_on_message () from /lib/plymouth/script.so
 ?? () from /lib/plymouth/script.so
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: plymouthd crashed with SIGSEGV in script_obj_deref_direct()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 07/04/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 6.15
dmi.board.asset.tag: N/A
dmi.board.name: 2A86
dmi.board.vendor: PEGATRON CORPORATION
dmi.board.version: 1.04E01
dmi.chassis.asset.tag: 2MD13201YN
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr6.15:bd07/04/2011:svnHewlett-Packard:pnh8-1080t:pvr:rvnPEGATRONCORPORATION:rn2A86:rvr1.04E01:cvnHewlett-Packard:ct3:cvrChassisVersion:
dmi.product.name: h8-1080t
dmi.sys.vendor: Hewlett-Packard

[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 #733453, 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.