Actually, its not even that long of a filename.  It is running out of
memory.  That's a new one.  It ran out when allocating a buffer for
os.lstat(), which is typically not that big.


On Mon, May 9, 2011 at 11:04 PM, Michael Terry
<email address hidden>wrote:

> Ken, this looks interesting.
>
> If it was really choking on the length of the filename, I would expect
> errno 36, ENAMETOOLONG.  But errno 12 is ENOMEM, which means the kernel
> ran out of memory...  Seems a pretty lowlevel error.
>
> Do you get this repeatably?
>
> ** Also affects: duplicity
>   Importance: Undecided
>       Status: New
>
> --
> You received this bug notification because you are subscribed to
> Duplicity.
> https://bugs.launchpad.net/bugs/780270
>
> Title:
>  Deja Dup crashes on long path names
>
> Status in Déjà Dup Backup Tool:
>  New
> Status in Duplicity - Bandwidth Efficient Encrypted Backup:
>  New
>
> Bug description:
>  I have a couple months of backups made by BackInTime and wanted to see
>  how much space Deja Dup's compression would save me on a single
>  backup. Deja Dup is crashing on making a copy of this backup due to
>  the length of the path name.
>
>  Traceback (most recent call last):
>    File "/usr/bin/duplicity", line 1262, in <module>
>      with_tempdir(main)
>    File "/usr/bin/duplicity", line 1255, in with_tempdir
>      fn()
>    File "/usr/bin/duplicity", line 1228, in main
>      full_backup(col_stats)
>    File "/usr/bin/duplicity", line 408, in full_backup
>      bytes_written = dummy_backup(tarblock_iter)
>    File "/usr/bin/duplicity", line 161, in dummy_backup
>      while tarblock_iter.next():
>    File "/usr/lib/python2.7/dist-packages/duplicity/diffdir.py", line 505,
> in next
>      result = self.process(self.input_iter.next(), size)
>    File "/usr/lib/python2.7/dist-packages/duplicity/diffdir.py", line 187,
> in get_delta_iter
>      for new_path, sig_path in collated:
>    File "/usr/lib/python2.7/dist-packages/duplicity/diffdir.py", line 279,
> in collate2iters
>      for relem1 in riter1:
>    File "/usr/lib/python2.7/dist-packages/duplicity/selection.py", line
> 174, in Iterate
>      subpath, val = diryield_stack[-1].next()
>    File "/usr/lib/python2.7/dist-packages/duplicity/selection.py", line
> 143, in diryield
>      error_handler, Path.append, (path, filename))
>    File "/usr/lib/python2.7/dist-packages/duplicity/robust.py", line 37, in
> check_common_error
>      return function(*args)
>    File "/usr/lib/python2.7/dist-packages/duplicity/path.py", line 507, in
> append
>      return self.__class__(self.base, self.index + (ext,))
>    File "/usr/lib/python2.7/dist-packages/duplicity/path.py", line 487, in
> __init__
>      self.setdata()
>    File "/usr/lib/python2.7/dist-packages/duplicity/path.py", line 492, in
> setdata
>      self.stat = os.lstat(self.name)
>  OSError: [Errno 12] Cannot allocate memory:
> '/mnt/backups/backintime/glados/chris/1/20110509-000003-101/backup/home/chris/Courses/Quantum
> Conductance/Fractional quantization of the ballistic conductance in electron
> and hole systems - Magnusson.pdf'
>
>  I am using Ubuntu 11.04 with the following packages:
>  deja-dup      18.1.1-0ubuntu1
>  duplicity             0.6.13-0ubuntu1
>