KnitCorrupt error due to MemoryError in _parse_record during update on linux

[Johan]

bzr: ERROR: bzrlib.errors.KnitCorrupt: Knit <bzrlib.knit._PackAccess object at 0x894726c> corrupt: While reading {kevin.swelsen@msdes101-20080414082351-5m1ol6haogxfyoth} got MemoryError()

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 834, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 790, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 492, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.5/site-packages/bzrlib/builtins.py", line 1059, in run
    possible_transports=possible_transports)
  File "/usr/lib/python2.5/site-packages/bzrlib/workingtree.py", line 2167, in update
    return self._update_tree(old_tip, change_reporter)
  File "/usr/lib/python2.5/site-packages/bzrlib/mutabletree.py", line 51, in tree_write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/workingtree.py", line 2207, in _update_tree
    change_reporter=change_reporter)
  File "/usr/lib/python2.5/site-packages/bzrlib/merge.py", line 1197, in merge_inner
    return merger.do_merge()
  File "/usr/lib/python2.5/site-packages/bzrlib/merge.py", line 417, in do_merge
    merge.do_merge()
  File "/usr/lib/python2.5/site-packages/bzrlib/merge.py", line 512, in do_merge
    self._compute_transform()
  File "/usr/lib/python2.5/site-packages/bzrlib/merge.py", line 550, in _compute_transform
    file_status = self.merge_contents(file_id)
  File "/usr/lib/python2.5/site-packages/bzrlib/merge.py", line 821, in merge_contents
    self.other_tree, trans_id)
  File "/usr/lib/python2.5/site-packages/bzrlib/transform.py", line 1699, in create_by_entry
    lines = tree.get_file(entry.file_id).readlines()
  File "/usr/lib/python2.5/site-packages/bzrlib/revisiontree.py", line 82, in get_file
    return StringIO(self.get_file_text(file_id))
  File "/usr/lib/python2.5/site-packages/bzrlib/revisiontree.py", line 79, in get_file_text
    return ''.join(self.get_file_lines(file_id))
  File "/usr/lib/python2.5/site-packages/bzrlib/revisiontree.py", line 76, in get_file_lines
    return weave.get_lines(ie.revision)
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 1032, in get_lines
    return self.get_line_list([version_id])[0]
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 1067, in get_line_list
    text_map, content_map = self._get_content_maps(version_ids)
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 1085, in _get_content_maps
    record_map = self._get_record_map(version_ids)
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 1050, in _get_record_map
    self._data.read_records_iter(records):
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 2496, in read_records_iter
    content, digest = self._parse_record(version_id, data)
  File "/usr/lib/python2.5/site-packages/bzrlib/knit.py", line 2402, in _parse_record
    % (version_id, e.__class__.__name__, str(e)))
KnitCorrupt: Knit <bzrlib.knit._PackAccess object at 0x894726c> corrupt: While reading {kevin.swelsen@msdes101-20080414082351-5m1ol6haogxfyoth} got MemoryError()

bzr 1.2.0 on python 2.5.1.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'update']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'nl_NL.UTF-8'
plugins:
  bzrtools /usr/lib/python2.5/site-packages/bzrlib/plugins/bzrtools [1.2.0]
  gtk /usr/lib/python2.5/site-packages/bzrlib/plugins/gtk [0.93.0]
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
*** Bazaar has encountered an internal error.
    Please report a bug at https://bugs.launchpad.net/bzr/+filebug
    including this traceback, and a description of what you
    were doing when the error occurred.

Please advise on how to recover repository if possible.
I think this happened after a commit of a very large file was aborten.