bzr crashed with ShortReadvError in _seek_and_read(): readv() read 0 bytes rather than 176 bytes at 0 for "4f680d8d8e1b455119e7d3caad1367ef.rix"

[DBR (OpenERP)]

Hello,

I created one branch.
and it's worked fine with bzr command before a day.
but now when I try to pull that branch or try to tack that branch again
I faced the problem.

Required information:
lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04

apt-cache policy packagekit-backend-apt
packagekit-backend-apt:
  Installed: 0.6.11-2ubuntu3
  Candidate: 0.6.11-2ubuntu3
  Version table:
 *** 0.6.11-2ubuntu3 0
        500 http://in.archive.ubuntu.com/ubuntu/ natty/universe i386 Packages
        100 /var/lib/dpkg/status

Expected:
pull branch normally or try to take that branch again work normally

Happen:
Time to report a bug :(

Thanks

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: bzr 2.3.4-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-14.58-generic 2.6.38.8
Uname: Linux 2.6.38-14-generic i686
Architecture: i386
BzrDebugFlags: set()
BzrVersion: 2.3.4
CommandLine: ['/usr/bin/bzr', 'pull']
CrashDb: bzr
Date: Fri May 18 14:07:18 2012
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InterpreterPath: /usr/bin/python2.7
Locale: en_US.utf8
PackageArchitecture: all
Platform: Linux-2.6.38-14-generic-i686-with-Ubuntu-11.04-natty
ProcCmdline: /usr/bin/python /usr/bin/bzr pull
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.utf8
 LANGUAGE=en_US:en
PythonVersion: 2.7.1
SourcePackage: bzr
Title: bzr crashed with ShortReadvError in _seek_and_read(): readv() read 0 bytes rather than 176 bytes at 0 for "4f680d8d8e1b455119e7d3caad1367ef.rix"
UpgradeStatus: Upgraded to natty on 2012-04-16 (32 days ago)
UserEncoding: UTF-8
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape video

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.