I've tried to backup twice using Deja Dup onto a Samba share, and both times it finishes with "backup failed". The main backup window says that the backup was last done 200+ days ago, so it did not record the most recent one - and I can't tell if it finished doing it's job and whenever the backup files are valid.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: deja-dup 22.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
Uname: Linux 3.2.0-27-generic i686
ApportVersion: 2.0.1-0ubuntu11
Architecture: i386
Date: Fri Jul 20 08:14:04 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: deja-dup
UpgradeStatus: Upgraded to precise on 2012-04-27 (83 days ago)
Status changed to 'Confirmed' because the bug affects multiple users.