http urllib hides programming errors related exceptions

I forgot to mention that the bug manifested itself because webdav was issuing write requests, whereas with read requests (as bzr uses the urllib implementation) the bug do not occurs.

I am running bzr on a laptop up against a server via openvpn,
and I using sftp under bzr.
OS system:
flyvemaskine:~> uname -a
Linux flyvemaskine 2.6.22-14-generic #1 SMP Tue Feb 12 07:42:25 UTC 2008 i686 GNU/Linux
Package system Ubuntu 8.04 TLS

If I try do status bzr return a seg-fault
 flyvemaskine:~/src/work/dversion> bzr status
Segmentation fault
flyvemaskine:~/src/work/dversion> bzr commit
Segmentation fault

A bzr check gives the following output

flyvemaskine:~/src/work/dversion> bzr check
checked branch file:///home/cbr/src/work/dversion/ format Bazaar Branch Format 6 (bzr 0.15)
checked repository <bzrlib.transport.local.LocalTransport url=file:///home/cbr/src/work/> format <RepositoryFormatKnitPack1>
    31 revisions
  2636 file-ids
  2347 unique file texts
 39349 repeated file texts
     0 unreferenced text versions
bzr: ERROR: exceptions.SystemError: Negative size passed to PyString_FromStringAndSize

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 2427, in run
    if len(list(repo_basis.iter_changes(tree_basis))):
  File "/usr/lib/python2.5/site-packages/bzrlib/tree.py", line 777, in iter_changes
    from_entries_by_dir = list(self.source.inventory.iter_entries_by_dir(
  File "/usr/lib/python2.5/site-packages/bzrlib/workingtree_4.py", line 1614, in _get_inventory
    self._generate_inventory()
  File "/usr/lib/python2.5/site-packages/bzrlib/workingtree_4.py", line 1473, in _generate_inventory
    self._dirstate._read_dirblocks_if_needed()
  File "/usr/lib/python2.5/site-packages/bzrlib/dirstate.py", line 1960, in _read_dirblocks_if_needed
    _read_dirblocks(self)
  File "_dirstate_helpers_c.pyx", line 694, in _dirstate_helpers_c._read_dirblocks_c
  File "_dirstate_helpers_c.pyx", line 661, in _dirstate_helpers_c.Reader._parse_dirblocks
  File "_dirstate_helpers_c.pyx", line 626, in _dirstate_helpers_c.Reader._get_entry
SystemError: Negative size passed to PyString_FromStringAndSize

bzr 1.3.1 on python 2.5.2.final.0 (linux2)
arguments: ['/usr/bin/bzr', 'check']
encoding: 'UTF-8', fsenc: 'UTF-8', lang: 'da_DK.UTF-8'
plugins:
  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.

I have checkout the repository again and I have manually added the changed to the new checkout. I was able to make a commit the first time after I have added the changes, but the second time I tried to commit bzr breaks on seg-fault again.

cbr, please fill a new bug with your specific case, your comment above has nothing to do with this bug.

Hence, your report will we totally ignored if you don't fill a new bug.

Also, don't change the assignee if 1) it's not you, 2) you don't intend to take over the previous assignee to fix the bug yourself.

I just see you filled bug #226036, great. Please do the same with the issue you reported above.

This was merged in bzr.dev revno 2965.