Duplicity to restore home dir from 32bit to 64bit system - unknown error

[Nick Meyne]

Duplicity (launched via Deja Dup) reports unknown error when trying to restore home directories after system upgrade from 32 bit 12.10 and reinstall of 64 bit 12.10.
Intel® Core™2 Duo CPU E8400 @ 3.00GHz × 2 in ASUS P5E3 Pro motherboard. Newly-installed 64-bit 12.10 on 500Gb disk with lvm. No other errors reported on install.
USB connected backup volume containing home directories - chose the restore to same location in Deja Dup

Restore failed with an unknown error.
Error report:
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1412, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1405, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1339, in main
    restore(col_stats)
  File "/usr/bin/duplicity", line 630, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 522, in Write_ROPaths
    for ropath in rop_iter:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 495, in integrate_patch_iters
    final_ropath = patch_seq2ropath( normalize_ps( patch_seq ) )
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 475, in patch_seq2ropath
    misc.copyfileobj( current_file, tempfp )
  File "/usr/lib/python2.7/dist-packages/duplicity/misc.py", line 166, in copyfileobj
    buf = infp.read(blocksize)
  File "/usr/lib/python2.7/dist-packages/duplicity/librsync.py", line 80, in read
    self._add_to_outbuf_once()
  File "/usr/lib/python2.7/dist-packages/duplicity/librsync.py", line 94, in _add_to_outbuf_once
    raise librsyncError(str(e))
librsyncError: librsync error 103 while in patch cycle

Duplicity version 0.6.19
Python 2.7.3
Ubuntu 12.10
Linux ext4 target (with lvm)

Log output - sorry... not sure what Deja Dup passed to or received from Duplicity

[Nick Meyne (nick-meyne)]

I now think the 32 to 64 bit change is irrelevant to the problem - this is probably a duplicate of 662442 and I've just been unlucky to hit it with some of my data:

        https://bugs.launchpad.net/duplicity/+bug/662442

I can confirm that the problem exists for both 32 and 64 bit - same error reported when attempting to restore using 32 bit live cd.

Is the patch for 662442 meant to be available for 64 bit versions?

Nick