plymouthd crashed with SIGSEGV in __libc_start_main()

[Mr.giveup]

I just received this dialog.

~$lsb_release -rd
Description: Ubuntu precise (development branch)
Release: 12.04

~$ apt-cache policy plymouth
plymouth:
  已安装： 0.8.2-2ubuntu28
  候选软件包：0.8.2-2ubuntu28
  版本列表：
 *** 0.8.2-2ubuntu28 0
        500 http://archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: plymouth 0.8.2-2ubuntu28
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic i686
ApportVersion: 1.93-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Thu Mar 1 21:40:22 2012
DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
ExecutablePath: /sbin/plymouthd
MachineType: LENOVO Brazos
ProcCmdLine: root=UUID=24237483-c586-4dd1-bc23-95a52f03a8c1 ro locale=zh_CN.UTF-8
ProcCmdline: /sbin/plymouthd --mode=boot --attach-to-session
ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: root=UUID=24237483-c586-4dd1-bc23-95a52f03a8c1 ro locale=zh_CN.UTF-8
SegvAnalysis:
 Segfault happened at: 0x80a350: cmp 0xc(%eax),%esi
 PC (0x0080a350) ok
 source "0xc(%eax)" (0x0000000c) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: plymouth
StacktraceTop:
 ?? () from /lib/i386-linux-gnu/libc.so.6
 ?? ()
 ?? ()
 ?? ()
 __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: plymouthd crashed with SIGSEGV in __libc_start_main()
UpgradeStatus: Upgraded to precise on 2012-02-20 (10 days ago)
UserGroups:

dmi.bios.date: 04/15/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 4BCN20WW
dmi.board.asset.tag: Base Board Asset Tag Unknown
dmi.board.name: Inagua
dmi.board.vendor: LENOVO
dmi.board.version: 109-B78210-00A
dmi.chassis.asset.tag: Chassis Asset Tag Unknown
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Chassis Version Unknown
dmi.modalias: dmi:bvnLENOVO:bvr4BCN20WW:bd04/15/2011:svnLENOVO:pnBrazos:pvrIdeapadS205:rvnLENOVO:rnInagua:rvr109-B78210-00A:cvnLENOVO:ct10:cvrChassisVersionUnknown:
dmi.product.name: Brazos
dmi.product.version: Ideapad S205
dmi.sys.vendor: LENOVO

[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 #938971, 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.