Samba printers are missing after reboot until smbd is restarted

[Nick B.]

This may be related to
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1010501
and
https://bugs.launchpad.net/ubuntu/lucid/+source/upstart/+bug/494141

After a reboot Samba printers are not visible until smbd is restarted.
I've tried adding "and started cups" to /etc/init/smbd.conf but that only seemed to work very intermittently (I'm guessing this caused a race condition). I've also tried adding "and started smbd" to /etc/init/cups.conf but that didn't work at all. The only thing that seems to have worked is the patch in this comment https://bugs.launchpad.net/ubuntu/lucid/+source/upstart/+bug/494141/comments/18

Steps to reproduce
1. Reboot a samba server with printers shared through samba
2. Run "smbclient -L COMPUTER -N" after it comes back up

What is expected:
Samba printers should be listed under Sharename in the output from the smbclient command above or to Windows clients

What happens instead:
Printers are not available through samba until smbd is restarted

$ sudo testparm -S
[sudo] password for nick:
Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (4096) to minimum Windows limit (16384)
Processing section "[print$]"
Processing section "[printers]"
Processing section "[Nick]"
Processing section "[public]"
WARNING: The security=share option is deprecated
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
        server string =
        security = SHARE
        username map = /etc/samba/smbusers
        syslog only = Yes
        log file = /var/log/samba.log
        announce version = 5.0
        name resolve order = hosts wins bcast
        socket options = TCP_NODELAY IPTOS_LOWDELAY SO_KEEPALIVE SO_RCVBUF=8192 SO_SNDBUF=8192
        printcap name = cups
        idmap config * : backend = tdb

[print$]
        path = /usr/share/cups/drivers/
        write list = root
        create mask = 0664
        directory mask = 0775
        guest ok = Yes

[printers]
        comment = All Printers
        path = /var/spool/samba
        write list = root
        guest ok = Yes
        printable = Yes
        print ok = Yes
        browseable = No

[Nick]
        path = /media/Share/Users/Nick
        read only = No
        create mask = 0644

[public]
        comment = Public Folder
        path = /media/Share/Public
        force user = nobody
        force group = nogroup
        read only = No
        create mask = 0777
        directory mask = 0777
        guest ok = Yes

apt-cache policy samba
samba:
  Installed: 2:3.6.9-1ubuntu1
  Candidate: 2:3.6.9-1ubuntu1
  Version table:
 *** 2:3.6.9-1ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ raring/main i386 Packages
        100 /var/lib/dpkg/status

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[floid (jkanowitz)]

Noticed today as well on 13.04 (64-bit).

The "reload-smbd" upstart script already exists to handle this per the prior bugs, but apparently something's still racing.

-rw-r--r-- 1 root root 213 Nov 23 08:55 /etc/init/reload-smbd.conf

smbd.log appears to suggest that the reload isn't happening (boot at 13:00; manual restart of smbd when printing issue noticed at 14:23):

[2013/05/21 13:00:07, 0] smbd/server.c:1026(main)
  smbd version 3.6.9 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2011
[2013/05/21 13:00:07.819348, 0] smbd/server.c:1082(main)
  standard input is not a socket, assuming -D option
[2013/05/21 13:00:07.828557, 0] printing/print_cups.c:151(cups_connect)
  Unable to connect to CUPS server localhost:631 - Transport endpoint is not connected
[2013/05/21 13:00:07.829032, 0] printing/print_cups.c:528(cups_async_callback)
  failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL
[2013/05/21 13:00:09.208510, 0] printing/print_cups.c:151(cups_connect)
  Unable to connect to CUPS server localhost:631 - Transport endpoint is not connected
[2013/05/21 13:00:09.209564, 0] printing/print_cups.c:528(cups_async_callback)
  failed to retrieve printer list: NT_STATUS_UNSUCCESSFUL
[2013/05/21 14:23:11, 0] smbd/server.c:1026(main)
  smbd version 3.6.9 started.
  Copyright Andrew Tridgell and the Samba Team 1992-2011
[2013/05/21 14:23:12.160294, 0] smbd/server.c:1082(main)
  standard input is not a socket, assuming -D option