[Samba] Fwd: samba & Oracle ACFS Issues

Nacho del Rey odelreym at gmail.com
Wed Dec 17 00:48:30 MST 2014

> > >Please remove the SO_RCVBUF and SO_SNDBUF entries.
> > >Oh, that's ancient. Do you have any possibility to move to
> > >"security=user"?
> >                  The smb.conf file was inherited from HP-UX system. Ok,
> > I'll remove them
> >
> > >Did you try "posix locking = no"? That is mostly criticial
> > >if you are exporting files from a file system with
> > >unreliable locking like for example NFS.
> >
> >           There is no NFS at all over the fs. It is only ACFS + samba. We
> > tried to disable any interference with posix locks over the ACFS, so the
> > parameter was set to no. Is it right?
> In your smb.conf, it was set to yes, that's why I was
> asking. Setting "posix locking = no" is the right thing to
> do in this case. I mentioned NFS just as an example of a
> file system where locking can be problematic. It sounds like
> ACFS also could have problems here, thus the analogy.
> Ah, ok. I did not understand you properly. We'll try this change

> >
> > >Can you see what the smbd hosting such a blocked client does?
> > >If it is in D state (according to ps u), it sits in the
> > >kernel. If not, you could try stracing the process (strace
> > >-ttT -p <pid>) and see what it does. gstack <pid> also helps
> > >often.
> >
> >    We got the following strace over the samba process 'locked'
> The strace looks innocent. Have you been able to see what
> state the process was in while the client was blocked?
I will ask for it to my workmates if they can have it one 'top' capture (I
don't think so)

I'll come back to you as soon as I get the results

Many thanks Volker


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