Bug#441975: cannot upgrade libc6 (segfault)

[Thomas Kreft <daeron@gmx.net>]

I can confirm this behaviour, except I do not (never had) libc6-i686 
installed. System: Unstable, Linux 2.6.22-2-k7

# dpkg -l libc6*
(...)
iF  libc6                      2.6.1-5                  
rc  libc6-dev                  2.6.1-5               
un  libc6-dev-amd64            <none>  
un  libc6-i686                 <none>       
un  libc6.1                    <none>        
un  libc6.1-dev                <none>      

# apt-get -f install
Reading package lists... Done
(...)
The following extra packages will be installed:
  libc6-dev libgphoto2-2 libgphoto2-2-dev
Suggested packages:
  glibc-doc manpages-dev gphoto2 gtkam
The following NEW packages will be installed:
  libc6-dev
The following packages will be upgraded:
  libgphoto2-2 libgphoto2-2-dev
2 upgraded, 1 newly installed, 0 to remove and 189 not upgraded.
1 not fully installed or removed.
Need to get 0B/9164kB of archives.
After unpacking 15,4MB of additional disk space will be used.
Do you want to continue [Y/n]?
Reading package fields... Done
Reading package status... Done
Retrieving bug reports... Done
Parsing Found/Fixed information... Done
/bin/sh: line 1: 13982 Segmentation 
fault      /usr/sbin/dpkg-preconfigure --apt
Setting up libc6 (2.6.1-5) ...
dpkg: error processing libc6 (--configure):
 subprocess post-installation script killed by signal (Segmentation fault)
Errors were encountered while processing:
 libc6
E: Sub-process /usr/bin/dpkg returned an error code (1)

Hope that helps.