[Samba] Upgrade to 2:4.16.2+dfsg-1nmu1~deb11.1 borks printing

[Rowland Penny]

On Tue, 2022-08-30 at 18:02 +0000, Aaron de Bruyn via samba wrote:
> Hey everyone,
> 
> We were running Samba 2:4.13.13+dfsg-1~deb11u4 under Debian (Proxmox)
> and late last night we installed the update to 2:4.16.2+dfsg-
> 1nmu1~deb11.1.
> 
> Everything appeared to go smoothly, but this morning we were flooded
> with calls about printing not working.
> 
> After digging around for about an hour, here are a few notes:
> - Nothing in the Samba or CUPS logs that indicate any issues or even
> activity related to printers.
> - You can see the printers from Windows by going to \\machine and
> connect to them with no errors.
> - Submitting a test page causes it to show "printing" in the queue
> for several minutes, then Windows pops up with an error about
> submitting the print job to the queue. No activity in the samba or
> CUPS logs, nothing in the CUPS web GUI queue for active or completed
> jobs.
> - Pulling up the CUPS web GUI and submitting a test page from there
> works perfectly.
> - Access to Samba fileshares works without issue.
> 
> I downgraded one site to 2:4.13.13+dfsg-1~deb11u4 and printing
> immediately started working, then I downgraded every site.

>From reports on this list, you should have upgraded to the latest Samba
version: 4.16.4

Doing this is reported to fix the problem.

Rowland