As indicated in dpkg terminal log, you failed to produce a valid
smb.conf using the experimental 3-way merge (which is quite
experimental):
Conflicts found! Please edit `/etc/samba/smb.conf' and sort them out
manually.
The file `/etc/samba/smb.conf.ucf-new' has a record of the failed merge
of
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/28850810/Dependencies.txt
** Attachment added: DpkgTerminalLog.gz
http://launchpadlibrarian.net/28850811/DpkgTerminalLog.gz
--
package samba-common 2:3.3.2-1ubuntu3.1 failed to install/upgrade: subprocess
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/28850810/Dependencies.txt
** Attachment added: DpkgTerminalLog.gz
http://launchpadlibrarian.net/28850811/DpkgTerminalLog.gz
--
package samba-common 2:3.3.2-1ubuntu3.1 failed to install/upgrade: subprocess