bzr crashed while pushing

[Tomáš Myšík]

While pushing, bzr crashed - see the output below.

gapon@cattie ~/public_html/worx/swiz5 $ bzr push
Using saved location: bzr+ssh://default/srv/repo/swiz5.bzr/
Bzrtools is not up to date with installed bzr version 1.1.0.candidate.1.
There should be a newer version available, e.g. 1.1.
Unable to load plugin 'bzrtools' from '/usr/lib/python2.4/site-packages/bzrlib/plugins'
Server is too old for fast get_parent_map, reconnecting. (Upgrade the server to Bazaar 1.2 to avoid this)
Bzrtools is not up to date with installed bzr version 1.1.0.candidate.1.
There should be a newer version available, e.g. 1.1.
Unable to load plugin 'bzrtools' from '/usr/lib/python2.4/site-packages/bzrlib/plugins'
bzr: ERROR: exceptions.AssertionError: 321 != 322

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 840, in run
    stop_revision=revision_id)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 127, in read_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1556, in push
    _override_hook_source_branch=_override_hook_source_branch)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1598, in _push_with_bound_branches
    result = self._basic_push(target, overwrite, stop_revision)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1617, in _basic_push
    target.update_revisions(self, stop_revision)
  File "/usr/lib/python2.5/site-packages/bzrlib/remote.py", line 1526, in update_revisions
    other, stop_revision=stop_revision, overwrite=overwrite)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 165, in write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1480, in update_revisions
    other_last_revision)
  File "/usr/lib/python2.5/site-packages/bzrlib/decorators.py", line 165, in write_locked
    return unbound(self, *args, **kwargs)
  File "/usr/lib/python2.5/site-packages/bzrlib/branch.py", line 1398, in set_last_revision_info
    assert len(history) == revno, '%d != %d' % (len(history), revno)
AssertionError: 321 != 322

bzr 1.3 on python 2.5.1.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'push']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'cs_CZ.UTF-8'
plugins:
  bzrtools /usr/lib/python2.5/site-packages/bzrlib/plugins/bzrtools [1.3.0]
  diffstat /home/gapon/.bazaar/plugins/diffstat [unknown]
  docdiff /home/gapon/.bazaar/plugins/docdiff [0.9.0]
  gtk /usr/lib/python2.5/site-packages/bzrlib/plugins/gtk [0.93.0]
  launchpad /usr/lib/python2.5/site-packages/bzrlib/plugins/launchpad [unknown]
  lessdiff /home/gapon/.bazaar/plugins/lessdiff [unknown]
  lesslog /home/gapon/.bazaar/plugins/lesslog [unknown]
  qbzr /home/gapon/.bazaar/plugins/qbzr [0.9.0]
  rebase /usr/lib/python2.5/site-packages/bzrlib/plugins/rebase [0.2.0]
  stats /home/gapon/.bazaar/plugins/stats [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.

[Martin Albisetti (beuno)]

I suspect this is due to a problem with bzrtools plugin rather then bzr.
Could you disable the plugin and try again?

[Aaron Bentley (abentley)]

It's nothing to do with bzrtools. Bzrtools isn't even being loaded.

The problem appears to be that the remote branch is in a format earlier than dirstate-tags and its revision-history doesn't follow the lefthand history. Bazaar used to consider this okay, but newer formats use the lefthand history exclusively.

The local branch appears to be in dirstate-tags or a more recent format, so it follows the lefthand history, and the branches disagree about what history should look like.

Upgrading the remote branch to dirstate-tags or later should fix this problem.

[Laurent Bigonville (bigon)]

I can confirm that upgrading the branch to dirstate-tags fix the problem