Hi All,
Have any of you seen this little darling of an error on writing to a
file? The sequence of events goes something like this:
1) File is opened for reading on a Samba server with oplocks disabled.
Open request is requesting a batch oplock.
2) File open SUCCEEDS. (Should this have happened?)
3) File is read, stat'd etc. over and over.
4) A request comes through to write to the file.
5) STATUS_INVALID_LOCK_SEQUENCE Error happens.
I think that the client had an odd interpretation of what a batch oplock
let it get away with. There is also a filter driver in the way that does
odd things (ClearCase MVFS), and this could be related, but the odd
thing is that the error ONLY happens when accessing [ClearCase Views on]
Samba shares. I'm thinking that the client thought it could do anything
it wanted since it thought it had a batch oplock.
My question is, shouldn't the samba server "bounce" an open request that
includes a request for a Batch Oplock (or any oplock at all, for that
matter)?
Yes, I have a network trace that shows the problem, but I can't exactly
sent it out since it contains proprietary information.
Thanks!
Brian Cowan
Samba information:
Samba version: 2.2.8a.
smb.conf file from View server appserv2:
# Samba config file created using
# Global parameters
[global]
netbios name = appserv2
netbios aliases = appserv2
interfaces = 192.168.140.243/255.255.255.0
include = /usr/local/ct/samba/smb.conf
[smb-test]
comment = Samba Testing Filesystem
path = /smb-test
read only = No
valid users = dowens pgraves tooladm bpepin
[view]
comment = MVFS View Storage Container
path = /view
read only = Yes
[vstore1]
comment = ERM View Storage Container
path = /vstore1
read only = No
-- smb.conf file included by the above server
# Samba config file created using
# Global parameters
[global]
workgroup = ENG
security = domain
encrypt passwords = yes
password server = svr1
username map = /usr/local/ct/samba/username.map
password level = 4
log level = 1
log file = /opt/local/samba/log/%m.%a
max log size = 20
name resolve order = hosts wins bcast lmhosts
deadtime = 60
max open files = 8192
socket options = TCP_NODELAY IPTOS_LOWDELAY
load printers = No
os level = 40
preferred master = Yes
wins server = 10.254.66.26
kernel oplocks = No
message command = /bin/mail -s 'message from #% on %m' bpepin
<%s; rm %s
homedir map = auto.xxx
comment = Samba ver. %v
invalid users = @wheel, mail, deamon, adt
create mask = 0775
directory mask = 0775
oplocks = No
level2 oplocks = No
case sensitive = No
preserve case = Yes
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