samba - Oct 2002 - Problems w/long file access times (samba2.2.5 & WinXP pro) (fwd)

Hello all,
we're currently having problems with Windows XP machines that have
*very* long file access times for files that are located on our
linux-based samba server (samba 2.2.5 / linux 2.4.18). This happens with
all kinds of files, with all kinds of programs, including Office97, text
editors, develoment environments, etc.

Sometimes - the incidents itself seems to be random and is not
reproducible so far - a program freezes after a file to be opened or
saved is selected; depending on the program, it either

- returns after a minute or so claiming the operation has failed, only
  to load/save the file successfully anyway most of the time, or

- loads/saves the file as requested and unfreezes the program after up
  to 60 seconds.

This only happens with our WinXP clients; the two legacy Win98 machines
still in use don't ever complain about anything. I read something about
oplock problems in an older mail on one of the samba mailing lists and
tried tinkering with the parameters to no avail.

Below, I include my smb.conf; a debug logs are available on request. Any
help or insight into the matter is appreciated.

Thanks
Kasi Mir
-------------- next part --------------
[global]
workgroup = DY
username map = /etc/samba/smb.usermap
force unknown acl user = yes
debuglevel = 10
encrypt passwords = yes
preserve case = yes
os level = 65
domain admin group = root mw mk fb ks mk
security = user
printing = bsd
printcap name = /etc/printcap
domain master = yes
domain logons = yes
preferred master = yes
max log size = 100000
oplocks = yes
time server = yes
hosts allow = 10.0.2.0/255.255.255.0
remote announce = 10.0.2.255/DY
logon home = \\double\home\.config\%m
logon path = \\double\home\.config\%m
auto services = netlogon
logon script = %U.bat
;socket options = IPTOS_LOWDELAY TCP_NODELAY
interfaces = 10.0.2.200/255.255.255.0
oplock break wait time = 10
server string = Zentralserver

[home]
path = /home/%u
browseable = yes
create mode = 0770
directory mode = 0770
read only = no
force group = users
csc  policy = disable

...

[grafix]
path = /fileserver/gfx
browseable = yes
create mode = 0770
directory mode = 0770
read only = no
force group = users

[prg]
path = /server2/prg
browseable = yes
create mode = 0770
directory mode = 0770
read only = no
force group = users

[install]
path = /server2/install
browseable = yes
create mode = 0770
directory mode = 0770
read only = no
force group = users

[technik]
path = /server2/technik
browseable = yes
create mode = 0770
directory mode = 0770
read only = no
force group = technik

...

[printers]
comment = All Printers
browseable = yes
printable = yes
public = yes
read only = yes
create mode = 0700
directory = /tmp

[netlogon]
path = /fileserver/script
browseable = no
read only = yes
write list = mw
admin users = mw

...

-----[ on 10/16/02 02:21:12 PM +0200 kasi.mir@melzone.de wrote ]-----
> This only happens with our WinXP clients; the two legacy Win98 machines
> still in use don't ever complain about anything. I read something about
> oplock problems in an older mail on one of the samba mailing lists and
> tried tinkering with the parameters to no avail.

I saw delayed access to Samba shares with WinXP until I turned off the 
WebClient service that runs on WinXP. It was trying to access the Samba 
server over port 80 and waiting for timeouts until then using the expected 
NetBIOS ports. After disabling the WebClient service on my XP machines, 
they accessed the Samba shares normally.

As an administrator on the XP machine type services.msc into the "run"
dialog. Then look for WebClient and stop or disable the service. See if 
this makes any difference.

     --Ben--

-----------------------
Ben Griffith
bgriffit@email.unc.edu
-----------------------