[Samba] Re: oplock not working correctly

[vwdragon]

Hello..

I've the same problem...
dou you get solution?

Iain:
> I posted a problem with oplock previously, but am guessing it goto lost
> in an earlier thread with the same subject line, so here goes another shot:
> 
> Using Samba 3.0.22 on a Gentoo box (kernel 2.6.15) I've a situation
> where file locking does not seem to be functioning as expected, in that
> more than one user can open and write to a file without any
> notifications being displayed about the file already being opened by
> another user.
> 
> In the debug output below I have two Windows XP clients accessing the
> same shared file, neteng02 has the file open. neteng-vm3 then opens the
> same file, receiving no warnings about the file being open by another
> user. File is modified by neteng02 and saved and remains open. File then
> modified by neteng-vm3 and saved. File closed and opened by neteng02 who
> sees only modifications made by neteng-vm3.
> 
> *** START ***
> log.neteng-vm3:[2006/04/26 11:33:57, 3]
> smbd/oplock_linux.c:linux_set_kernel_oplock(166)
> log.neteng-vm3:  linux_set_kernel_oplock: got kernel oplock on file
> tmp/my_test_file.txt, dev = 804, inode = 251750772, file_id = 225
> log.neteng-vm3:[2006/04/26 11:33:57, 5] smbd/oplock.c:set_file_oplock(125)
> log.neteng-vm3:  set_file_oplock: granted oplock on file
> tmp/my_test_file.txt, dev = 804, inode = 251750772, file_id = 225,tv_sec
> = 444f3e85, tv_usec = 88676
> log.neteng-vm3:[2006/04/26 11:33:57, 3]
> smbd/oplock.c:initial_break_processing(311)
> log.neteng-vm3:  Current oplocks_open (exclusive = 0, levelII = 1)
> log.neteng02:[2006/04/26 11:33:57, 3]
> smbd/oplock.c:initial_break_processing(311)
> log.neteng02:  Current oplocks_open (exclusive = 1, levelII = 0)
> log.neteng02:[2006/04/26 11:33:53, 3]
> smbd/oplock_linux.c:linux_set_kernel_oplock(166)
> log.neteng02:  linux_set_kernel_oplock: got kernel oplock on file
> tmp/my_test_file.txt, dev = 804, inode = 251750772, file_id = 458
> log.neteng02:[2006/04/26 11:33:53, 5] smbd/oplock.c:set_file_oplock(125)
> log.neteng02:  set_file_oplock: granted oplock on file
> tmp/my_test_file.txt, dev = 804, inode = 251750772, file_id = 458,tv_sec
> = 444f3e81, tv_usec = d7ef7
> *** END ***
> 
> My smb/conf file looks like:
> 
> *** START ***
> [global]
>   netbios name  = NETMON2
>   workgroup     = MYCORP
>   server string = LDAP PDC
>   hosts allow   = 172.16.0.0/19
> 
>   security = user
>   encrypt passwords = yes
>   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
>   interfaces = lo eth0
>   bind interfaces only = yes
>   local master = yes
>   os level = 65
>   domain master = yes
>   domain logons = yes
>   preferred master = yes
>   null passwords = no
>   hide unreadable = yes
>   hide dot files = yes
>   logon script = %U.bat
>   logon drive = H:
>   logon home = \\%L\%U
>   wins support = yes
> 
>   name resolve order = wins lmhosts host bcast
>   dns proxy = yes
>   time server = yes
> 
>   log file = /var/log/samba/log.%m
>   max log size = 50
>   log level = 5
> 
>   add user script = /usr/sbin/smbldap-useradd -m "%u"
>   add machine script = /usr/sbin/smbldap-useradd -w "%u"
>   add group script = /usr/sbin/smbldap-groupadd -p "%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"
> 
>   passdb backend = ldapsam:ldap://127.0.0.1/
> 
>   ldap delete dn = Yes
>   ldap ssl = no
>   ldap suffix = dc=waldocorp,dc=com
>   ldap admin dn = cn=Manager,dc=waldocorp,dc=com
>   ldap group suffix = ou=Groups
>   ldap user suffix = ou=Users
>   ldap machine suffix = ou=Computers
>   ldap idmap suffix = ou=Users
> 
>   printcap name = cups
>   load printers = yes
>   printing = cups
> 
>   admin users = @"Domain Admins"
> 
>   kernel oplocks = yes
>   oplocks = yes
>   level2 oplocks = yes
>   strict locking = yes
> 
> [printers]
>   comment = All Printers
>   path = /var/spool/samba
>   browseable = yes
>   guest ok = yes
>   writable = no
>   printable = yes
>   create mode = 0700
>   default devmode = yes
> 
> [print$]
>   comment = Printer Driver Download Area
>   path = /home/samba/printers
>   browseable = yes
>   read only = yes
>   write list = @"Domain Admins"
>   guest ok = yes
> 
> [netlogon]
>   path = /home/samba/netlogon
>   guest ok = yes
>   browseable = no
>   write list = root
> 
> [profiles]
>   path = /home/samba/profiles
>   writeable = yes
>   browseable = no
>   read only = no
>   create mode = 0644
>   directory mode = 0755
>   guest ok = yes
> 
> [homes]
>   path = /home/samba/users/%U
>   browseable = no
>   valid users = %S
>   read only = no
>   create mask = 0664
>   directory mask = 0775
> 
> [software]
>   comment = Software Repository
>   path = /home/samba/software
>   guest ok = no
>   public = yes
>   read only = no
>   browseable = yes
>   force create mode = 0775
>   force directory mode = 6775
> 
> [engineering]
>   comment = Network Engineering Group Share
>   path = /home/samba/groups/engineering
>   guest ok = no
>   public = yes
>   read only = no
>   browseable = yes
>   force create mode = 0775
>   force directory mode = 6775
> 
> [finance]
>   comment = Finance Group Share
>   path = /home/samba/groups/finance
>   guest ok = no
>   public = yes
>   read only = no
>   browseable = yes
>   force create mode = 0775
>   force directory mode = 6775
> 
> [labs]
>   comment =  Labs Group Share
>   path = /home/samba/groups/labs
>   guest ok = no
>   public = yes
>   read only = no
>   browseable = yes
>   force create mode = 0775
>   force directory mode = 6775
> 
> [support]
>   comment = Support Group Share
>   path = /home/samba/groups/support
>   guest ok = no
>   public = yes
>   read only = no
>   browseable = yes
>   force create mode = 0775
>   force directory mode = 6775
> 
> *** END ***
> 
> Any ideas why the files are not being locked correctly??
> 
> Iain.
> 
>