[Samba] Duplicate PID

Einat Ben Ezra einatb01 at gmail.com
Mon Feb 24 10:04:13 MST 2014


I'm using samba version 3.0.37 and i encountered a very strange and
annoying phenomena
when 2 different users from 2 different machines are getting the same PID
from samba.
(2 windows users that are trying to view documents on the CIFS share).

I did some google research on this problem and i found the following
regarding such a problem:

One can find references to problems like this, possibly affecting
performance, back in 2001
I experience that also on an RHEL6 samba server. Is %CPU for pid 17666
exceptionally high? If you look at the full smbstatus - do you see other
users with the same PID as user toor? List open files for the process with
lsof -p 17666 and verify if toor opens other user's files.

There are at least two theories what is causing this: 1. samba sometimes
does not update it's state when clients are disconnected
file locking (when one user accesses files of another user)

*My questions are:*

1.Can someone please throw a light on the problem? explain why this can
2. How can i avoid such a problem of duplicate PID?
3. Is there any workaround for such a problem?  - for now i cannot upgrade
my samba version - it is not an option for me.
4. How can i identify this problem in samba logs - log.smbd . etc?

please kindly advise,
I'll appreciate any help ASAP

Many thanks,

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