<class 'termios.error'>: (5, 'Input/output error')

Binary package hint: aptdaemon

update manager crashed while trying to do an update

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: aptdaemon 0.41+bzr614-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: nvidia
Annotation: Applying software changes failed
Architecture: amd64
Date: Thu Apr 7 20:52:23 2011
DesktopFile: /usr/share/aptdaemon/aptdaemon.desktop
ExecutablePath: /usr/sbin/aptd
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
PackageArchitecture: all
SourcePackage: aptdaemon
Title: <class 'termios.error'>: (5, 'Input/output error')
TransactionDepends: [[], [], [], [], [], [], []]
TransactionErrorCode: error-unknown
TransactionKwargs: {}
TransactionLocale: en_US.UTF8
TransactionOutput:

TransactionPackages: [[], [], [], [], [dbus.String(u'gimp'), dbus.String(u'gimp-data'), dbus.String(u'gir1.2-dbusmenu-glib-0.4'), dbus.String(u'indicator-application'), dbus.String(u'indicator-appmenu'), dbus.String(u'indicator-datetime'), dbus.String(u'indicator-messages'), dbus.String(u'indicator-session'), dbus.String(u'libdbusmenu-glib3'), dbus.String(u'libdbusmenu-gtk3'), dbus.String(u'libgimp2.0'), dbus.String(u'libldap-2.4-2'), dbus.String(u'libnux-0.9-0'), dbus.String(u'libnux-0.9-common'), dbus.String(u'liboverlay-scrollbar-0.1-0'), dbus.String(u'overlay-scrollbar'), dbus.String(u'unity'), dbus.String(u'unity-common'), dbus.String(u'xchat-indicator')], []]
TransactionRole: role-commit-packages
UpgradeStatus: Upgraded to natty on 2010-11-01 (157 days ago)