no response received to oplock break request

[Enno Pemöller]

Hi All,


My problem started with new server hardware and software update, also I
changed my network from 10 to 100Mb (New Cable and switches)
I have a problem with oplocks. I run Samba 2.0.10 (also tried 2.2.1a) on
Suse 7.1 Kernel 2.4. Several times a day I have an oplock error like this:
(request_oplock_break: no response received to oplock break request to pid
5312 on port 32857 for dev = 803, inode = 246701)
Sometimes it is possible for me to locate a client that hangs an give no
answer to the oplock request, and ok, WIN98ME Clients will hang sometimes,
but on one share I run a dos database Software (Cobol), and when there is an
oplock problem all clients hang and most time I have to restart samba.
Is there any one who knows what I can do?

What I tried is:
Setting
oplock contention limit = 5
oplock break wait time = 100

My settings are:
 # Samba config file created using SWAT
# Date: 2001/10/10 18:34:03

# Global parameters
[global]
	workgroup = SAMBA
	netbios name = FILESERVER
	server string = Samba %v
	encrypt passwords = Yes
	min password length = 2
	log file = /usr/local/samba/var/log.smbd
	nt acl support = No
	time server = Yes
	change notify timeout = 300
	shared mem size = 2097152
	socket options = TCP_NODELAY SO_KEEPALIVE SO_SNDBUF=8192
	mangled stack = 100
	logon script = scripts\%U.bat
	domain logons = Yes
	os level = 65
create mask = 0777			only for test!!!
	force create mode = 0777
	directory mask = 0777
	force directory mode = 0777
	lm announce = False
	domain master = Yes
	dns proxy = No
	wins support = Yes
	kernel oplocks = No
	oplock break wait time = 100
	unix realname = Yes
	admin users = pemoeller reichwald
	write cache size = 64
	level2 oplocks = Yes
	oplock contention limit = 5

[homes]
	comment = Home-Verzeichnisse
	path = /home/%S
	writeable = Yes
	guest ok = Yes
	browseable = No
	delete readonly = Yes

[INKS]
	comment = Warenwirtschaft
	path = /home/public/inks
	force user = inks
	force group = users
	oplock contention limit = 5
	writeable = Yes
	guest ok = Yes
	browseable = No
	delete readonly = Yes

[netlogon]
	comment = logon-Scipte
	path = /home/public/system/netlogon
	valid users = @users
	admin users = pemoeller
	write list = @users
	writeable = Yes
	guest ok = Yes

[admin]
	comment = Fileserver
	path = /home
	guest account = pemoeller
	writeable = Yes
	browseable = No

[pool]
	comment = bon-Pool
	path = /home/public/pool
	writeable = Yes
	browseable = No
	delete readonly = Yes

[Handbuch]
	comment = ISO 9000 Handbuch
	path = /home/public/handbuch
	writeable = Yes
	browseable = No
	delete readonly = Yes


Thank you very much....


Enno Pemöller
mailto:pemoeller at bonoptic.de
http://www.bonoptic.de/