Samba: CUPS printers are not available at startup

[NoOp]

On 04/22/2011 08:36 PM, Lucio M Nicolosi wrote:
...
> 
> As intended, stripped down my hardware and thoroughly tested the
> behavior of the smbd daemon. Removed Firestarter and iptables are now
> as naked as a newborn. USB ports at use:  the printers, a mouse and a
> camera (forgot to remove it but it is more recent than the problem).
> 
> Conclusion: in my station it doesn't work, neither on Maverick 64 or
> Natty 64. Something blocks the daemon's auto reload function. So the
> parameter "printcap cache time ="  is useless. Note that the Natty
> install is bare, almost nothing but the default itens.
> 
> On a headless Lucid 64 station nearby, the adding or removing of a
> printer from Cups server is almost immediately reflected by the
> command sbmclient -L [IP], indicating the daemon is working.
> 
> A typical segment of the Maverick 64 /var/log/samba/smbd log file at
> the faulty station is:
> 
> [begin]
> 
> [2011/04/22 12:53:21,  0] smbd/server.c:1123(main)  smbd version 3.5.4 started.
>   Copyright Andrew Tridgell and the Samba Team 1992-2010
> [2011/04/22 12:53:21.406311,  0]
> printing/print_cups.c:108(cups_connect)  Unable to connect to CUPS
> server localhost:631 - Connection refused
> [2011/04/22 12:53:21.411729,  0]
> printing/print_cups.c:108(cups_connect)  Unable to connect to CUPS
> server localhost:631 - Connection refused
> 
> {(above) normal, denotes cups starting after smbd, a known bug}
> 
> [2011/04/22 12:53:21.412194,  0] smbd/server.c:1169(main)  standard
> input is not a socket, assuming -D option
> 
> {standard, also appears at the functional station}
> 
> [2011/04/22 12:53:21.418346,  0]
> smbd/server.c:500(smbd_open_one_socket) smbd_open_once_socket:
> open_socket_in: Address already in use
> [2011/04/22 12:53:21.418455,  0]
> smbd/server.c:500(smbd_open_one_socket) mbd_open_once_socket:
> open_socket_in: Address already in use
> [2011/04/22 12:53:21.419338,  0] smbd/server.c:281(remove_child_pid)
> Could not find child 1146 -- ignoring
> 
> {these previous lines probably contain the clue, they are also present
> at Natty's log, it looks like smbd is unable to open a needed socket
> for the service daemon - ran socklist and checked /etc/init/smbd.conf
> but haven't a clue about what socket it might be, perhaps the author,
> Steve Langasek <steve.langasek at ubuntu.com> knows what is all about}
> 
> [2011/04/22 12:53:27.158123,  1] smbd/process.c:776(smbd_sig_hup_handler)
>   Reloading services after SIGHUP
> [2011/04/22 12:53:27.171400,  0] smbd/server.c:281(remove_child_pid)
> Could not find child 2170 -- ignoring
> [2011/04/22 13:12:40,  0] smbd/server.c:1123(main)
> 
> {displayed after forcing a smdb reload - this SIGHUP should run at
> intervals set by  "printcap cache time =" }
> 
> [end]
> 
> After this I gave up and decided to apply the simple transitory patch
> recommended at https://bugs.launchpad.net/ubuntu/+source/cups/+bug/494141,
>  added '/sbin/reload smbd' at the end of /etc/rc.local. Although the
> daemon still doesn't work, at least the Cups printers are loaded just
> after startup.
> 
> So, now my rc.local now looks like this:
> 
>  #!/bin/sh -e
>  # [snip]
>  /sbin/reload smbd
>  exit 0
> 
> L.
> 

I wonder if this is related:
https://bugs.launchpad.net/ubuntu/+source/udev/+bug/691027
I've noticed that after cold boot, my printers are not enabled & I have
to reenable.

Not sure if this is related, but I'm also seeing:
[2011/05/01 10:05:22.489679,  0] smbd/server.c:281(remove_child_pid)
  Could not find child 3244 -- ignoring