update-manager crashed with IOError in _term_content_changed()

Binary package hint: update-manager

$ lsb_release -rd
Description: Ubuntu karmic (development branch)
Release: 9.10
$ sudo apt-cache policy update-manager
update-manager:
  Installed: 1:0.126
  Candidate: 1:0.126
  Version table:
 *** 1:0.126 0
        500 http://us.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

I was doing a partial dist-upgrade.

ProblemType: Crash
Architecture: i386
Date: Fri Oct 9 17:47:01 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/update-manager
InterpreterPath: /usr/bin/python2.6
Package: update-manager 1:0.126
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.6 /usr/bin/update-manager --dist-upgrade
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
PythonArgs: ['/usr/bin/update-manager', '--dist-upgrade']
SourcePackage: update-manager
Title: update-manager crashed with IOError in _term_content_changed()
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.6/dist-packages/DistUpgrade/DistUpgradeViewGtk.py", line 475, in _term_content_changed
     self._terminal_log.flush()
 IOError: [Errno 5] Input/output error
Uname: Linux 2.6.31-11-generic i686
UserGroups: