[Samba] Connection closing with close_cnum(1284)

Thu Mar 12 19:24:07 GMT 2009

Greetings

I am running SMB on OS X Server 10.5.6, it's not clear what version of  
SMB they use. I have a Windows XP box that mounts a network drive on  
the server. This mount disappears from time to time for no apparent  
reason:

[2009/03/12 08:35:54, 2, pid=23189] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/process.c:timeout_processing(1371)
   Closing idle connection
[2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/lib/util_sock.c:set_socket_options(261)
   Failed to set socket option SO_KEEPALIVE (Error Invalid argument)
[2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/lib/util_sock.c:set_socket_options(261)
   Failed to set socket option TCP_NODELAY (Error Invalid argument)
[2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/lib/util_sock.c:get_peer_addr(1224)
   getpeername failed. Error was Invalid argument
[2009/03/12 09:06:23, 2, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/reply.c:reply_special(328)
   netbios connect: name1=NEWYORK         name2=BRITNEY-IPAR
[2009/03/12 09:06:23, 2, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/reply.c:reply_special(335)
   netbios connect: local=newyork remote=britney-ipar, name type = 0
[2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/lib/util_sock.c:write_data(562)
   write_data: write failure in writing to client 172.26.15.51. Error  
Broken pipe
[2009/03/12 09:06:23, 0, pid=23693] /SourceCache/samba/samba-187.8/ 
samba/source/lib/util_sock.c:send_smb(761)
   Error writing 4 bytes to client. -1. (Broken pipe)
[2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/sesssetup.c:setup_new_vc_session(1260)
   setup_new_vc_session: New VC == 0, if NT4.x compatible we would  
close all old resources.
[2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ 
samba/source/lib/module.c:do_smb_load_module(64)
   Module '/usr/lib/samba/auth/odsam.dylib' loaded
[2009/03/12 09:06:23, 2, pid=23694] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/sesssetup.c:setup_new_vc_session(1260)
   setup_new_vc_session: New VC == 0, if NT4.x compatible we would  
close all old resources.
[2009/03/12 09:08:34, 2, pid=23694] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/process.c:timeout_processing(1371)
   Closing idle connection
[2009/03/12 09:13:34, 1, pid=7541] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   hwi-eas149 (172.26.15.62) closed connection to service encodedrive8

--- here's where the network mount closes---
[2009/03/12 09:13:34, 1, pid=7539] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   172.26.13.68 (172.26.13.68) closed connection to service encodedisk2
[2009/03/12 09:13:34, 1, pid=20953] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   emperor (172.26.15.103) closed connection to service encodedisk6
[2009/03/12 09:13:34, 1, pid=7542] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   hwi-eas295 (172.26.15.50) closed connection to service encodedrive7
[2009/03/12 09:13:34, 1, pid=7543] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   usi-eas45 (172.26.15.104) closed connection to service encodedrive8
[2009/03/12 09:13:34, 1, pid=20953] /SourceCache/samba/samba-187.8/ 
samba/source/smbd/service.c:close_cnum(1284)
   emperor (172.26.15.103) closed connection to service encodedisk1
[2009/03/12 09:13:34, 0] /SourceCache/samba/samba-187.8/samba/source/ 
smbd/server.c:main(890)
   smbd version 3.0.25b-apple started.
   Copyright Andrew Tridgell and the Samba Team 1992-2007
[2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ 
samba/source/param/loadparm.c:do_section(3804)
   Processing section "[homes]"
[2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ 
samba/source/param/loadparm.c:do_section(3804)
   Processing section "[printers]"
[2009/03/12 09:13:34, 2, pid=23896] /SourceCache/samba/samba-187.8/ 
samba/source/lib/interface.c:add_interface(81)
   added interface ip=172.26.15.102 bcast=172.26.15.255  
nmask=255.255.252.0

The IP in the log is not the same as the static IP associated with the  
Windows box. Does Windows assign a new IP for a network mount?

Here is my smb.conf file:

cat smb.conf
; Configuration file for the Samba software suite.
;  
= 
= 
= 
= 
========================================================================
;
; For the format of this file and comprehensive descriptions of all the
; configuration option, please refer to the man page for smb.conf(5).
;
; The following configuration should suit most systems for basic usage  
and
; initial testing. It gives all clients access to their home  
directories and
; allows access to all printers specified in /etc/printcap.

; BEGIN required configuration

; Parameters inside the required configuration block should not be  
altered.
; They may be changed at any time by upgrades or other automated  
processes.
;
; Site-specific customizations will only be preserved if they are done
; outside this block. If you choose to make customizations, it is your
; own responsibility to verify that they work correctly with the  
supported
; configuration tools.

[global]
     debug pid = yes
     log level = 1
     server string = Mac OS X

     printcap name = cups
     printing = cups

     encrypt passwords = yes
     use spnego = yes

     passdb backend = odsam

     idmap domains = default
     idmap config default: default = yes
     idmap config default: backend = odsam
     idmap alloc backend = odsam
     idmap negative cache time = 5

     map to guest = Bad User
     guest account = nobody

     unix charset = UTF-8-MAC
     display charset = UTF-8-MAC
     dos charset = 437

     vfs objects = darwinacl,darwin_streams

     ; Don't become a master browser unless absolutely necessary.
     os level = 2
     domain master = no

     ; For performance reasons, set the transmit buffer size
     ; to the maximum and enable sendfile support.
     max xmit = 131072
     use sendfile = yes

     ; The darwin_streams module gives us named streams support.
     stream support = yes
     ea support = yes

     ; Enable locking coherency with AFP.
     darwin_streams:brlm = yes

     ; Core files are invariably disabled system-wide, but attempting to
     ; dump core will trigger a crash report, so we still want to try.
     enable core files = yes

     ; Configure usershares for use by the synchronize-shares tool.
     usershare max shares = 1000
     usershare path = /var/samba/shares
     usershare owner only = no
     usershare allow guests = yes
     usershare allow full config = yes

     ; Filter inaccessible shares from the browse list.
     com.apple:filter shares by access = yes

     ; Check in with PAM to enforce SACL access policy.
     obey pam restrictions = yes

     ; Don't be trying to enforce ACLs in userspace.
     acl check permissions = no

     ; Make sure that we resolve unqualified names as NetBIOS before  
DNS.
     name resolve order = lmhosts wins bcast host

     ; Pull in system-wide preference settings. These are managed by
     ; synchronize-preferences tool.
     include = /var/db/smb.conf

[printers]
     comment = All Printers
     path = /tmp
     printable = yes
     guest ok = no
     create mode = 0700
     writeable = no
     browseable = no

; Site-specific parameters can be added below this comment.
; END required configuration.

Can someone point me in the direction of a problem?

Thanks

Mike