samba - Sep 2007 - "write_data: write failure in writing to client" with directories copy

Hi

Sometimes, when a windows xp sp2 client copy files frome a map share to another
map share on my samba server, copy stop with a message (name network failed) on
client
The files are not copied or damaged on destination directory
The 2e time client copy, all is ok
size and number of files  is not important
In university, files copy is very used by students

trace on log:

evenement syslog:
[2007/09/07 07:57:14, 0] lib/util_sock.c:read_data(534)
Sep  7 07:57:14 nestor smbd[10923]:   read_data: read failure for 4 bytes to
client . Error = Connexion r?-initialis?e par le correspondant
Sep  7 07:57:14 nestor smbd[10923]: [2007/09/07 07:57:14, 0]
lib/util_sock.c:write_data(562)
Sep  7 07:57:14 nestor smbd[10923]:   write_data: write failure in writing to
client  Error Relais bris? (pipe)
Sep  7 07:57:14 nestor smbd[10923]: [2007/09/07 07:57:14, 0]
lib/util_sock.c:send_smb(769)
Sep  7 07:57:14 nestor smbd[10923]:   Error writing 75 bytes to client. -1.
(Relais bris? (pipe))

The four first lines are write in syslog since a lot of time, but the last lines
(write failure) are write recently, with client copy problem

The problem exist on two sites

My server: samba 3.025b on debian testing, with ldap backend

my smb.conf



#======================= Global Settings ======================
[global]

## Browsing/Identification ###
   os level = 95
   smb ports = 137 138 139

   workgroup = ge2i
   server string = %h server (Samba %v)
   wins support = yes
   dns proxy = no
   name resolve order = wins lmhosts host  bcast
   unix charset = ISO8859-15
#### Networking ####


  passdb expand explicit = no

#### Debugging/Accounting ####

   log file = /var/log/samba/log.%m
   max log size = 1000
####### Authentication #######

   security = user
   encrypt passwords = true
   passdb backend = ldapsam:LDAP://127.0.0.1
   obey pam restrictions = yes
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\sUNIX\spassword:* %n\n
*Retype\snew\sUNIX\spassword:* %n\n *password\supdated\ssuccessfully* .


########## Domains ###########

 domain logons = yes
   logon path    logon drive = H:
   logon home = \\%N\%U
   logon script = logonetu.bat
##########LDAP################

        ldap admin dn = cn=admin,dc=ge2i,dc=iut-tlse3,dc=fr
        #ldap admin dn = cn=samba,ou=DSA,dc=idealx,dc=org
        ldap suffix = dc=ge2i,dc=iut-tlse3,dc=fr
        ldap group suffix = ou=Groups
        ldap user suffix = ou=People
        ldap machine suffix = ou=Computers
        #ldap idmap suffix = ou=Idmap
        add user script = /usr/sbin/smbldap-useradd -m "%u"
        #ldap delete dn = Yes
        delete user script = /usr/sbin/smbldap-userdel "%u"
        add machine script = /usr/sbin/smbldap-useradd -t 0 -w "%u"
 add group script = /usr/sbin/smbldap-groupadd -p "%g"
        #delete group script = /opt/IDEALX/sbin/smbldap-groupdel "%g"
        add user to group script = /usr/sbin/smbldap-groupmod -m "%u"
"%g"
        delete user from group script = /usr/sbin/smbldap-groupmod -x
"%u" "%g"
        set primary group script = /usr/sbin/smbldap-usermod -g '%g'
'%u'
########## Printing ##########
   load printers = yes
   printing = cups
   printcap name = cups
   enable privileges = yes

############ Misc ############

socket options = TCP_NODELAY IPTOS_LOWDELAY IPTOS_THROUGHPUT SO_KEEPALIVE
SO_RCVBUF=8192 SO_SNDBUF=8192
utmp = yes
oplocks = no
kernel oplocks = no
level2 oplocks = no
#======================= Share Definitions ======================# rajout suite
upgrade 3.0.25a
msdfs root = yes

[homes]
   comment = Home Directories
   browseable = no
   writable = yes
   create mask = 660
   directory mask = 2770
   inherit owner = yes

[netlogon]
   comment = Network Logon Service
   path = /home/samba/netlogon
   guest ok = yes
   writable = no
   share modes = no
   write list = @"Domain Admins" emusso

[profiles]
   comment = People profiles
   path = /home/samba/profils
   guest ok = no
   browseable = no
   writable = yes
   create mask = 666
   directory mask = 2777
   inherit owner = yes
   profile acls = yes
   csc policy = disable

[printers]
   comment = All Printers
   browseable = no
   path = /var/spool/samba
   printable = yes
   public = no
   writable = no
   create mode = 0700
[print$]
   comment = Printer Drivers
   path = /var/lib/samba/printers
   browseable = yes
   read only = yes
   guest ok = no
   write list = root, @"Domain Admins"

[wrk]
   comment = Volume de travail
   path = /home/wrk
   browseable = yes
   read only = no
   inherit owner = yes
   inherit permissions = yes
   inherit acls = yes


ideas ?

Thanks
Best regards
-- 
Emmanuel musso
technicien informatique
I.U.T. Paul Sabatier
D?pt G?nie ?lectrique 0562258241
Service informatique 0562258025





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