Bug 3604 - The smbd can't start with cups when the port 631 is used by another daemon.
The smbd can't start with cups when the port 631 is used by another daemon.
Status: RESOLVED WONTFIX
Product: Samba 3.0
Classification: Unclassified
Component: Printing
3.0.21c
x86 Linux
: P3 major
: none
Assigned To: Gerald (Jerry) Carter
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Depends on:
Blocks:
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Reported: 2006-03-14 04:04 UTC by TAKEDA yasuma
Modified: 2006-04-22 20:16 UTC (History)
0 users

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Description TAKEDA yasuma 2006-03-14 04:04:48 UTC
I find a problem about the initialization of smbd with CUPS.

If the port 631 is already used by a daemon(except cupsd), 
the smbd stops in the initialization. 

main()
 -> reload_service()
    -> reload_printers()
       -> pcap_cache_reload()
          -> cups_cache_reload()
             -> httpConnect()   
             -> cupsDoRequest()  
                  -> recv()      <--- STOP

If the port 631 is already used by another daemon,
httpConnect() succeeds.
And the recv() is executed in cupsDoRequest().
As a result, the smbd waits some responses forever.
Comment 1 Gerald (Jerry) Carter 2006-03-16 07:08:27 UTC
What are you running on port 631?  The current behavior is 
by design.  I don't see any timeout mechanism in the cupsDoRequest()
call.  You will need to file an issue with the cups developers.
Comment 2 TAKEDA yasuma 2006-04-04 01:39:30 UTC
I disabled the cups service.
And the NFS(rpc.rquotad) used the 631 port which is assigned by portmap by chance.
It caused our problem.

I filed this issue to CUPS's bugs. 
http://www.cups.org/str.php?L1535+P0+S-2+C0+I0+E0+Q

Thanks
Comment 3 Kurt Pfeifle 2006-04-22 20:16:22 UTC
Port 631 is a "well-known port" reserved for use by IPP servers only. Your NFS(rpc.rquotad) shows "illegal" behaviour in occupying that port