bzr crashed with ShortReadvError in _seek_and_read()

Binary package hint: bzr

I guess my repository got damaged when my system froze up. I don't think I was doing anything particular to my repository just then, but it was quite a busy system so who knows. Filesystem is ext4.

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: bzr 2.2.1-0ubuntu1
Uname: Linux 2.6.36-999-generic i686
NonfreeKernelModules: wl
Architecture: i386
BzrDebugFlags: set()
BzrVersion: 2.2.1
CheckboxSubmission: e56271c144a9c8f9f675c77e2e4edb56
CheckboxSystem: 7e42599bda39ea7ff8b528272b6ef52b
CommandLine: ['/usr/bin/bzr', 'branch', 'lp:~launchpad/launchpad/recife']
CrashDb: bzr
Date: Wed Nov 10 17:36:46 2010
ExecutablePath: /usr/bin/bzr
FileSystemEncoding: UTF-8
InterpreterPath: /usr/bin/python2.6
Locale: en_US.UTF-8
Platform: Linux-2.6.36-999-generic-i686-with-Ubuntu-10.10-maverick
ProcCmdline: /usr/bin/python /usr/bin/bzr branch lp:~launchpad/launchpad/recife
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LC_TIME=en_DK.UTF-8
PythonVersion: 2.6.6
SourcePackage: bzr
Title: bzr crashed with ShortReadvError in _seek_and_read()
UserEncoding: UTF-8
UserGroups: adm admin audio cdrom dialout lpadmin netdev plugdev pulse pulse-access sambashare video

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 912, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 1112, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 690, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 705, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 135, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 165, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/builtins.py", line 1246, in run
    source_branch=br_from)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 1257, in sprout
    result_repo.fetch(source_repository, revision_id=revision_id)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 1740, in fetch
    find_ghosts=find_ghosts, fetch_spec=fetch_spec)
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 194, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 3448, in fetch
    find_ghosts=find_ghosts)
  File "/usr/lib/python2.6/dist-packages/bzrlib/fetch.py", line 73, in __init__
    self.__fetch()
  File "/usr/lib/python2.6/dist-packages/bzrlib/fetch.py", line 95, in __fetch
    search = self._revids_to_fetch()
  File "/usr/lib/python2.6/dist-packages/bzrlib/fetch.py", line 164, in _revids_to_fetch
    find_ghosts=self.find_ghosts)
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 1567, in search_missing_revision_ids
    revision_id, find_ghosts)
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 3514, in search_missing_revision_ids
    return self._walk_to_common_revisions([revision_id])
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 3483, in _walk_to_common_revisions
    have_revs = set(target_graph.get_parent_map(revs_to_get))
  File "/usr/lib/python2.6/dist-packages/bzrlib/graph.py", line 167, in get_parent_map
    parent_map = self._get_parent_map(needed_revisions)
  File "/usr/lib/python2.6/dist-packages/bzrlib/repository.py", line 2663, in get_parent_map
    self.revisions.get_parent_map(query_keys).iteritems():
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1313, in get_parent_map
    return self._get_parent_map_with_sources(keys)[0]
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1332, in _get_parent_map_with_sources
    new_result = source.get_parent_map(missing)
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1969, in get_parent_map
    for node in nodes:
  File "/usr/lib/python2.6/dist-packages/bzrlib/groupcompress.py", line 1941, in _get_entries
    for node in self._graph_index.iter_entries(keys):
  File "/usr/lib/python2.6/dist-packages/bzrlib/index.py", line 1358, in iter_entries
    for node in index.iter_entries(keys):
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1144, in iter_entries
    if not self.key_count():
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1426, in key_count
    self._get_root_node()
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 922, in _get_root_node
    self._get_internal_nodes([0])
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 947, in _get_internal_nodes
    return self._get_nodes(self._internal_node_cache, node_indexes)
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 939, in _get_nodes
    found.update(self._get_and_cache_nodes(needed))
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 716, in _get_and_cache_nodes
    for node_pos, node in self._read_nodes(sorted(nodes)):
  File "/usr/lib/python2.6/dist-packages/bzrlib/btree_index.py", line 1540, in _read_nodes
    for offset, data in data_ranges:
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/__init__.py", line 704, in _seek_and_read
    c_offset.length, actual=len(data))
ShortReadvError: readv() read 0 bytes rather than 508 bytes at 0 for "2bd3fe9aa214e4ed2cfa12fa3250e615.rix"