[Samba] Re: What affects file locking?

[Doug Germann]

John Drescher <drescherjm <at> gmail.com> writes:

> 
> On Thu, Aug 7, 2008 at 9:16 PM, Doug Germann <76066.515 <at> compuserve.com>
wrote:
> > Hi--
> >
> > We are in a production environment with one WinXP box and several linux
boxes.
> >
> > We have discovered that the WinXP and linux boxes seem to respect each 
other's
> > file locks, but that the linux boxes do not respect each other's locks. In 
other
> > words, box 1 can have a file open, and at the same time box 2 can open it 
and
> > edit and save the file.
> >
> > We have smb.conf set with level2 oplocks yes, kernel oplocks no, and 
oplocks no.
> > When we first noticed the problem the last two were set to yes. The change 
has
> > made the locks work sometimes, but not reliably.
> >
> > Are there other things besides the oplocks and the smb.conf file which can
> > affect file locking? How would you trouble shoot this?
> >
> 
> Are the linux machines sharing the file using samba and mounting the

> share using cifs?
> 
> John

Yes. From fstab:
//samba1/doug2        /sam/doug2  cifs 
  
rw,user,credentials=/[blanked],
uid=doug,gid=doug       0       0

:- Doug.