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SubjectRe: [BUG] Smbfs + preempt on 2.4.10
Date
Hi Robert, Urban, everyone,

On Monday 29 October 2001 20:53, you wrote:
> > > I narrowed down Samba weirdness I observe on 2.4.10 to preempt patch.
> > > Plain 2.4.10 works fine, 2.4.10+preempt (with latency measurement
> > > turned on) is sometimes oopses, and sometimes reports 'file already
> > > exists' when I attempt to copy a file from WinNT box to Linux.
> > > Sometimes it works ok (50% or so...)
...
> I use samba myself a _lot_ here and I have not observed any problems,
> even with our older patches... although I don't copy NT->Linux very
> often.

2.4.13+preempt exhibits the same bug (even without latency measurement
patch). 2.4.13 plain is ok.

My subject line is not correct: it has nothing to do with smbfs since
bug shows up when win box creates files on linux share.

nmbd/smbd are started by inetd on my box, and I usually see creation bug
at first attempt to copy file, susequent copies are usually ok.

I have no idea of where I can start planting preempt_disable() and
preempt_enable() in the 2.4.13 to narrow bug location.
Any suggestions? Samba gurus may be more knowledgeable...
--
vda

PS. Urban, I dunno samba mailing list addr, feel free to crosspost this msg
there and/or tell me appropriate email addr.

/etc/inetd.conf (snippet)
-------------------------
# Samba, an SMB server.
netbios-ssn stream tcp nowait root /usr/sbin/smbd
... smbd -l/var/log/samba/smbd.log -s/etc/samba/smb.conf
netbios-ns dgram udp wait root /usr/sbin/nmbd
... nmbd -l/var/log/samba/nmbd.log -s/etc/samba/smb.conf

(lines with ... have wrapped in kmail)

/etc/samba/smb.conf
-------------------
# VDA
# This setup allows to connect as guest
# (invalid username -> you are guest)
# Attempt to connect to \\server\username
# will ask for password _for that username_
# even on braindamaged clients which don't
# let user specify username.
#
# Set passwords for users via smbpasswd!
#
# If passwd is ok, you are granted access to /home/username
# Note! To connect under different username, you may need
# to log off and on again on the client machine.
# Yes, M$ is terminally broken.

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

# Logging
#0..3 - ERR,WARN,NOTICE,INFO
log file = /var/log/samba.%m
max log size = 50
debug level = 1
syslog = 1
syslog only = No

# Browser elections
workgroup = LINUXWG
local master = yes
domain master = yes
preferred master = yes

# Authenticate users using local Samba
# - VDA: ok. Do we need to enable [netlogon]?
# Set passwords for users via smbpasswd!
encrypt passwords = yes
security = share
# This isn't possible with security=share
;;domain logons = yes
os level = 33
# If username is invalid, treat him as guest
map to guest = Bad user
# Allow users with null passwords to connect
null passwords = yes
# Allow logins from Win311/95/98 (weaker security)
lanman auth = yes

# Guess what is this?
client code page = 866
code page directory = /usr/lib/samba/lib/codepages

# ???
socket options = TCP_NODELAY

;;
;; TODO: try is this useful
;;[global]
;; default service = pub
;;
;;[pub]
;; path = /%S
;;

;;!!!
;; preexec = ...
;; postexec = ...

#============================ Default share parameters =======================
# Map guests to which UNIX user?
guest account = guest
# Share is visible by default?
browseable = yes
guest ok = yes
;;??? browse list = yes
read only = yes
follow symlinks = yes
create mode = 0644
force create mode = 0600
directory mode = 0755
force directory mode = 0111
deadtime = 10

#============================ Share Definitions ==============================
[-root]
path = /
read only = yes
guest ok = yes
guest only = no

[-pub]
path = /pub
read only = yes
guest ok = yes
guest only = yes

[-in]
path = /pub/in
read only = no
guest ok = yes
guest only = yes

# Special share - replaced by username
# Check that this path is actually accessible by users!!!
[homes]
path = /home/%S
only user = yes
user = %S
guest ok = no
read only = no
# This stops [homes] to be visible itself
# User shares inherit global setting and hence are visible
browseable = no
-
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