Segmentation fault during processing triggers for gconf2 when installing some packages on LiveCD

Binary package hint: gconf

I got Segmentation fault during processing triggers for gconf2 when installing some packages on LiveCD. This issue is not reproducible on full-installed system.

How to reproduce:  1. boot Natty LiveCD
  2. re-install packages on the list below like `sudo apt-get install --reinstall PACKAGE_NAME`
    affected packages: gdm, update-notifier, ibus
    not affected packages: gedit
  3. get Segmentation fault with the line below
    Processing triggers for gconf2 ...
    Segmentation fault

Once got Segmentation fault, gconf2 becomes unrecoverable like the output below:
  $ sudo apt-get install --reinstall gconf2
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 0 not upgraded.
  Need to get 0 B/74.7 kB of archives.
  After this operation, 0 B of additional disk space will be used.
  (Reading database ... 128093 files and directories currently installed.)
  Preparing to replace gconf2 2.32.1-2ubuntu2 (using .../gconf2_2.32.1-2ubuntu2_i386.deb) ...
  Unpacking replacement gconf2 ...
  Processing triggers for man-db ...
  Setting up gconf2 (2.32.1-2ubuntu2) ...
  Segmentation fault

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: gconf2 2.32.1-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-3.30-generic 2.6.38-rc4
Uname: Linux 2.6.38-3-generic i686
Architecture: i386
Date: Tue Feb 15 06:10:49 2011
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110214)
ProcEnviron:
 LANGUAGE=ja_JP.UTF-8:en
 LANG=ja_JP.UTF-8
 SHELL=/bin/bash
SourcePackage: gconf