bzr repo corrupted

[Sondra Kinsey]

The bzr repository seems to have arbitrarily corrupted. I have another branch, so it's not a big deal for me. Is there any way to fix corrupted repositories, or at least glean the most recent revisions? I don't know what caused the corruption.

$ bzr check
Checking working tree at '[path]'.
Checking branch at 'file:///[path]/'.
Checking repository at 'file:///[path]/'.
bzr: ERROR: bzrlib.errors.ShortReadvError: readv() read 4109539 bytes rather than 8130994 bytes at 31431453 for "aa7e51fead19937e75b74e3ff6cd34f2.pack"

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 930, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 1121, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 673, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.7/dist-packages/bzrlib/commands.py", line 697, in run
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 136, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/cleanup.py", line 166, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/builtins.py", line 3774, in run
    check_dwim(path, verbose, do_branch=branch, do_repo=repo, do_tree=tree)
  File "/usr/lib/python2.7/dist-packages/bzrlib/check.py", line 435, in check_dwim
    check_repo=do_repo)
  File "/usr/lib/python2.7/dist-packages/bzrlib/repository.py", line 1181, in check
    check_repo=check_repo)
  File "/usr/lib/python2.7/dist-packages/bzrlib/decorators.py", line 155, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/vf_repository.py", line 1955, in _check
    result.check(callback_refs)
  File "/usr/lib/python2.7/dist-packages/bzrlib/check.py", line 113, in check
    self.repository._check_inventories(self)
  File "/usr/lib/python2.7/dist-packages/bzrlib/vf_repository.py", line 1081, in _check_inventories
    self._do_check_inventories(checker, bar)
  File "/usr/lib/python2.7/dist-packages/bzrlib/vf_repository.py", line 1132, in _do_check_inventories
    for record in getattr(self, kind).check(keys=keys[kind]):
  File "/usr/lib/python2.7/dist-packages/bzrlib/groupcompress.py", line 1456, in get_record_stream
    orig_keys, ordering, include_delta_closure):
  File "/usr/lib/python2.7/dist-packages/bzrlib/groupcompress.py", line 1609, in _get_remaining_record_stream
    for factory in batcher.yield_factories():
  File "/usr/lib/python2.7/dist-packages/bzrlib/groupcompress.py", line 1170, in yield_factories
    block_read_memo, block = blocks.next()
  File "/usr/lib/python2.7/dist-packages/bzrlib/groupcompress.py", line 1412, in _get_blocks
    zdata = raw_records.next()
  File "/usr/lib/python2.7/dist-packages/bzrlib/repofmt/pack_repo.py", line 2043, in get_raw_records
    for names, read_func in reader.iter_records():
  File "/usr/lib/python2.7/dist-packages/bzrlib/pack.py", line 298, in _iter_records
    for record in self._iter_record_objects():
  File "/usr/lib/python2.7/dist-packages/bzrlib/pack.py", line 303, in _iter_record_objects
    record_kind = self.reader_func(1)
  File "/usr/lib/python2.7/dist-packages/bzrlib/pack.py", line 244, in reader_func
    return self._source.read(length)
  File "/usr/lib/python2.7/dist-packages/bzrlib/pack.py", line 200, in read
    self._next()
  File "/usr/lib/python2.7/dist-packages/bzrlib/pack.py", line 195, in _next
    offset, data = self.readv_result.next()
  File "/usr/lib/python2.7/dist-packages/bzrlib/transport/__init__.py", line 721, in _seek_and_read
    c_offset.length, actual=len(data))
ShortReadvError: readv() read 4109539 bytes rather than 8130994 bytes at 31431453 for "aa7e51fead19937e75b74e3ff6cd34f2.pack"

bzr 2.7.0dev1 on python 2.7.6 (Linux-3.13.0-24-generic-i686-with-
    Ubuntu-14.04-trusty)
arguments: ['/usr/bin/bzr', 'check']
plugins: bash_completion[2.7.0dev1], changelog_merge[2.7.0dev1],
    explorer[1.3.0], grep[2.7.0dev1], launchpad[2.7.0dev1],
    netrc_credential_store[2.7.0dev1], news_merge[2.7.0dev1],
    po_merge[2.7.0dev1], qbzr[0.23.1], weave_fmt[2.7.0dev1]
encoding: 'utf-8', fsenc: 'UTF-8', lang: 'en_US.UTF-8'

*** Bazaar has encountered an internal error. This probably indicates a
    bug in Bazaar. You can help us fix it by filing a bug report at
        https://bugs.launchpad.net/bzr/+filebug
    including this traceback and a description of the problem.

$ bzr version
Bazaar (bzr) 2.7.0dev1
  Python interpreter: /usr/bin/python 2.7.6
  Python standard library: /usr/lib/python2.7
  Platform: Linux-3.13.0-24-generic-i686-with-Ubuntu-14.04-trusty
  bzrlib: /usr/lib/python2.7/dist-packages/bzrlib
  Bazaar configuration: /home/lubuntu/.bazaar
  Bazaar log file: /home/lubuntu/.bzr.log