update-apt-xapian-index crashed with DatabaseError in __init__(): Can't commit new revision - failed to flush DB to disk

[sheff]

Binary package hint: apt-xapian-index

launched synaptic

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: apt-xapian-index 0.41ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
Date: Sun Apr 17 15:59:42 2011
ExecutablePath: /usr/sbin/update-apt-xapian-index
InterpreterPath: /usr/bin/python2.7
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/sbin/update-apt-xapian-index --update -q
ProcEnviron:
 PATH=(custom, no user)
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/sbin/update-apt-xapian-index', '--update', '-q']
SourcePackage: apt-xapian-index
Title: update-apt-xapian-index crashed with DatabaseError in __init__(): Can't commit new revision - failed to flush DB to disk
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: