assert len(tview) == tview_len

[c]

bzr: ERROR: exceptions.AssertionError: 12069 != 12085

Traceback (most recent call last):
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 842, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 1037, in run_bzr
    ret = run(*run_argv)
  File "/Library/Python/2.6/site-packages/bzrlib/commands.py", line 654, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/Library/Python/2.6/site-packages/bzrlib/builtins.py", line 1413, in run
    view_info=view_info), possible_transports=possible_transports)
  File "/Library/Python/2.6/site-packages/bzrlib/workingtree.py", line 2213, in update
    old_tip = self.branch.update(possible_transports)
  File "/Library/Python/2.6/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/branch.py", line 2437, in update
    self.pull(master, overwrite=True)
  File "/Library/Python/2.6/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/branch.py", line 948, in pull
    possible_transports=possible_transports, *args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/branch.py", line 730, in pull
    self.update_revisions(stop_revision, overwrite)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/branch.py", line 665, in update_revisions
    mapping=self.source.mapping)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1279, in fetch
    use_replay=self._use_replay)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1209, in _fetch_revisions
    parent_revmeta)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1154, in _fetch_revision_switch
    report_inventory_contents(reporter, parent_revnum, start_empty)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/errors.py", line 137, in convert
    return unbound(*args, **kwargs)
  File "/Library/Python/2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 920, in report_inventory_contents
    reporter.finish()
  File "/Library/Python/2.6/site-packages/subvertpy/delta.py", line 59, in apply_window
    target_chunks.append(apply_txdelta_window(sbuf, window))
  File "/Library/Python/2.6/site-packages/subvertpy/delta.py", line 45, in apply_txdelta_window
    assert len(tview) == tview_len, "%d != %d" % (len(tview), tview_len)
AssertionError: 12069 != 12085

bzr 2.0.0 on python 2.6.1 (Darwin-10.0.0-i386-64bit)
arguments: ['/usr/local/bin/bzr', 'up']
encoding: 'UTF-8', fsenc: 'utf-8', lang: 'en_US.UTF-8'
plugins:
  bzrtools /Library/Python/2.6/site-packages/bzrlib/plugins/bzrtools [2.0.1]
  email /Library/Python/2.6/site-packages/bzrlib/plugins/email [unknown]
  keychain /Library/Python/2.6/site-packages/bzrlib/plugins/keychain [0.1.0]
  launchpad /Library/Python/2.6/site-packages/bzrlib/plugins/launchpad [2.0.0]
  netrc_credential_store /Library/Python/2.6/site-packages/bzrlib/plugins/netrc_credential_store [2.0.0]
  rebase /Library/Python/2.6/site-packages/bzrlib/plugins/rebase [0.5.4]
  svn /Library/Python/2.6/site-packages/bzrlib/plugins/svn [1.0.0]
  upload /Library/Python/2.6/site-packages/bzrlib/plugins/upload [1.0.0dev]
  xmloutput /Library/Python/2.6/site-packages/bzrlib/plugins/xmloutput [0.8.5]

[Jelmer Vernooij (jelmer)]

  affects bzr
  status invalid

  affects bzr-svn
  status new

[Jelmer Vernooij (jelmer)]

Does the repository you are trying to update from contain any revisions that were pushed with bzr-svn earlier?

[Christian Faulhammer (fauli)]

I am seeing this error with https://overlays.gentoo.org/svn/proj/alt/trunk/prefix-overlay (I did a checkout of a subdirectory). After a commit to https://overlays.gentoo.org/svn/proj/alt/trunk/scripts by someone else with Subversion I get the following error:

https://overlays.gentoo.org/svn/proj/alt/trunk/prefix-overlay is permanently redirected to https://overlays.gentoo.org/svn/proj/alt/trunk/prefix-overlay/
bzr: ERROR: exceptions.AssertionError: 21919 != 22030

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/bzrlib/commands.py", line 842, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/bzrlib/commands.py", line 1037, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.6/site-packages/bzrlib/commands.py", line 654, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/usr/lib/python2.6/site-packages/bzrlib/builtins.py", line 1017, in run
    possible_transports=possible_transports, local=local)
  File "/usr/lib/python2.6/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/site-packages/bzrlib/workingtree.py", line 1611, in pull
    local=local)
  File "/usr/lib/python2.6/site-packages/bzrlib/decorators.py", line 192, in write_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/site-packages/bzrlib/branch.py", line 948, in pull
    possible_transports=possible_transports, *args, **kwargs)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/branch.py", line 731, in pull
    self.update_revisions(stop_revision, overwrite)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/branch.py", line 666, in update_revisions
    mapping=self.source.mapping)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1276, in fetch
    use_replay=self._use_replay)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1206, in _fetch_revisions
    parent_revmeta)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 1151, in _fetch_revision_switch
    report_inventory_contents(reporter, parent_revnum, start_empty)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/errors.py", line 137, in convert
    return unbound(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/bzrlib/plugins/svn/fetch.py", line 917, in report_inventory_contents
    reporter.finish()
  File "/usr/lib/python2.6/site-packages/subvertpy/delta.py", line 59, in apply_window
    target_chunks.append(apply_txdelta_window(sbuf, window))
  File "/usr/lib/python2.6/site-packages/subvertpy/delta.py", line 45, in apply_txdelta_window
    assert len(tview) == tview_len, "%d != %d" % (len(tview), tview_len)
AssertionError: 21919 != 22030

bzr 2.0.3 on python 2.6.4 (Linux-2.6.31-gentoo-r6-i686-Intel-R-_Core-TM-2_Duo_CPU_T8100_@_2.10GHz-with-gentoo-2.0.1)
arguments: ['/usr/bin/bzr', 'pull', 'https://overlays.gentoo.org/svn/proj/alt/trunk/prefix-overlay']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'de_DE.UTF-8@euro'
plugins:
  bzrtools /usr/...

[Christian Faulhammer (fauli)]

I should add that such a commit happened before, and it was no problem to pull then.

[Christian Faulhammer (fauli)]

Even cloning fails now on that repository. My structure is

shared repostitory: prefix/
two trunks: prefix/local_trunk and prefix/remote_trunk

Cloning in a new shared repository is ok.

I should also note that the above prefix structure has been branched off with Bazaar from a checkout with bzr-svn. Size difference was vast.

[Christian Faulhammer (fauli)]

Again, it's me. Cloning from upstream repository does not work..it fails after fetching all revisions in the processing phase with the exact number. Branching the existing bzr-svn repository works, but pull is defect nonetheless.

 Any comments?

[Tully (tully.foote)]

I'm seeing this bug too. I'm seeing this in launchpad's import of a svn repository. This is the branch being imported https://code.launchpad.net/~tully.foote/ros-wg-pkg-unreleased/svn_trunk

It's happening on every import at what I believe is the same revision. The most recent logs are available on the branch webpage.

The error is at the same line:
{{{
  File "/srv/importd.launchpad.net/production/launchpad-rev-9186/optionalbzrplugins/svn/errors.py", line 141, in convert
    return unbound(*args, **kwargs)
  File "/srv/importd.launchpad.net/production/launchpad-rev-9186/optionalbzrplugins/svn/fetch.py", line 938, in report_inventory_contents
    reporter.finish()
  File "/srv/importd.launchpad.net/production/launchpad-rev-9186/lib/subvertpy/delta.py", line 59, in apply_window
    target_chunks.append(apply_txdelta_window(sbuf, window))
  File "/srv/importd.launchpad.net/production/launchpad-rev-9186/lib/subvertpy/delta.py", line 45, in apply_txdelta_window
    assert len(tview) == tview_len, "%d != %d" % (len(tview), tview_len)
AssertionError: 24 != 80
}}}

[Tres Seaver (tseaver)]

This bug is blocking the import of lp:karl3 at a particularly inopportune moment: the project drivers are actively considering a move from SVN to bzr, including possibly setting up for-pay private repositories / LP instances for the organizations currently running KARL.

Please let me know if there is anything I can do to help diagnose ore resolve the issue. For reference, the failing import is from the HTTP URL: http://osi.agendaless.com/bfgsvn/karl/trunk/ . I can arrange access over SSH if that would help, or get you a copy of the repository.

[Tim Penhey (thumper)]

I realised it was a bit rude of me to set the importance of the bzr-svn task. Sorry. But rather than twiddling the status back, we should talk about it.

[Tres Seaver (tseaver)]

One more datapoint: the last imported revision for lp:karl3 is r927, which corresponds to svn r5140

  $ svn diff -c 5140 http://osi.agendaless.com/bfgsvn
  ...
  Property changes on: karl/trunk/karl/evolve/zodb/evolve8.py
  ___________________________________________________________________
  Added: svn:eol-style
     + native
  Added: svn:keywords
     + Id
  ...

which has no corresponding data in bzr:

  $ bzr log -p --limit 1 lp:karl3

Could the lack of that property cause the checksum failure in importing
svn r5141 (or later)?

[Tres Seaver (tseaver)]

I think my last note is a red herring: the revision which actually causes the failure
is svn r 5147, which doesn't involve the same files as svn r5140.

The 'tview' string in my version of the traceback is definitely a corrupt version of
the affected file: it doesn't match any revision of the file in subversion at all, and
in fact contains a Python syntax error.

The 'tview_len' value corresponds exactly to the length of the file as checked in
to r5147.

[Tres Seaver (tseaver)]

Reproducing with bzr 2.1.1

 $ bzr --version
 Bazaar (bzr) 2.1.1
 ...
 $ bzr plugins | grep ^svn
 svn 1.0.3dev
:$ export KSVN=http://osi.agendaless.com/bfgsvn
 $ bzr co $KSVN/karl/trunk karl

At the time that the assert happens, the following state seems interestnig:

- The SVN revision which triggers the failure is r5147.

- The file for the failure is 'karl/trunk/karl/content/views/wiki.py',
  which has the following revisions of interest on the trunk;

  * Revision 4908:

    $ svn log -r 4908 $KSVN/karl/trunk/karl/content/views/wiki.py
    ------------------------------------------------------------------------
    r4908 | Rob Miller <email address hidden> | 2010-02-25 21:48:07 -0500 (Thu, 25 Feb 2010) | 6 lines

    move the commits that i accidentally made to a tag over to the trunk, where
    they belong. addresses the following 2 issues:

    https://bugs.launchpad.net/karl3/+bug/522179
    https://bugs.launchpad.net/karl3/+bug/523280

    ------------------------------------------------------------------------
    $ svn cat -r 4908 $KSVN/karl/trunk/karl/content/views/wiki.py | wc -c
    11228
    $ svn cat -r 4908 $KSVN/karl/trunk/karl/content/views/wiki.py | sha1sum
    310284f4a879826a525bc5ca97a1247856399f75 -

  * Revision 5090:

    $ svn log -r 5090 $KSVN/karl/trunk/karl/content/views/wiki.py
    ------------------------------------------------------------------------
    r5090 | Balazs Ree <email address hidden> | 2010-04-01 16:33:58 -0400 (Thu, 01 Apr 2010) | 1 line

    Merge ree-imagedrawer branch
    ------------------------------------------------------------------------
    $ svn cat -r 5090 $KSVN/karl/trunk/karl/content/views/wiki.py | wc -c
    11307
    $ svn cat -r 5090 $KSVN/karl/trunk/karl/content/views/wiki.py | sha1sum
    c079d758b9131f6990e4d78b82792cb4a6edba17 -

  * Revision 5147

    $ svn log -r 5147 $KSVN/karl/trunk/karl/content/views/wiki.py
    ------------------------------------------------------------------------
    r5147 | Balazs Ree <email address hidden> | 2010-04-07 13:27:11 -0400 (Wed, 07 Apr 2010) | 4 lines

    Implement experimental url switch for imagedrawer
    it's only active on wiki pages, if the ?enable_imagedrawer url
    parameter is entered manually. Otherwise, old style widget works
    by default.
    ------------------------------------------------------------------------
    $ svn cat -r 5147 $KSVN/karl/trunk/karl/content/views/wiki.py | wc -c
    11625
    $ svn cat -r 5147 $KSVN/karl/trunk/karl/content/views/wiki.py | sha1sum
    a409721a7a35eb3e9df0e8052b7a30ff839dc3ae -

Just before the application of the textdelta which fails with the assert,
the FileRevisionBuildEditor object is created for this file, with the
following arguments:

  'editor':
    revid: 'svn-v4:4f889dee-8c54-0410-98c1-98789d956ae4:karl/trunk:5147'
    'base_tree':
         rev_id: 'svn-v4:4f889dee-8c54-0410-98c1-98789d956ae4:karl/trunk:5146'
    'parent_trees':
         rev_id='svn-v4:4f889dee-8c54-0410-98c1-98789d956ae4:karl/trunk:5146',
         rev_id='svn-v4:4f889dee-8c54-0410-98c1-98789d956ae4:karl/trunk:5146'
    'inventory': None

  'old_path': u'karl/content/views/wiki.py'

  'path': u'karl/conte...

[Jelmer Vernooij (jelmer)]

I simply don't have the time to work on this at the moment, so unassigning for now. It'll be the first thing I work on when I get back to bzr-svn work though.

[Tres Seaver (tseaver)]

The fix for this bug does not seem to have helped the import of the KARL3 branch

The bug was obscured at first by a new bug, lp:626900, but the patch I added to
fix that bug causes the karl3 import to fail again with the same traceback.

See step 4 in this attachment to lp:626900 for the traceback:

  https://bugs.launchpad.net/bzr-svn/+bug/626900/+attachment/1529673/+files/bzr_svn-error.txt

[Jelmer Vernooij (jelmer)]

As mentioned in the report for bug 626900, the traceback shows that you're not running the latest version of
bzr-svn. The bug is fixed in bzr-svn 1.0.4 ("final"), while you're still
running the development version. If you're running lp:bzr-svn, you
should see "1.0.5 (dev)" as the current bzr-svn version.

Cheers,

Jelmer

[Launchpad QA Bot (lpqabot)]

Fixed in stable r11474 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/11474>.