[Pkg-samba-maint] Bug#682810: Bug#682810: samba: Strange message probabilly generating file access errors

[Saulo Soares de Toledo]

>
>  If you get corruption when you disable locking, there must still be some
>  access from one client while the other one is using the file.


Now i have this and the problem is worse: When the connection is closed,
when the process with the PID ends at server, the file is removed!!! The
system locks the file, if I wait some time, the locked file is simple
removed fro server!

        oplocks = False
        level2 oplocks = False
        locking = no
        strict locking = no
        blocking locks = no


Could you describe the exact steps needed to reproduce the problem when
> locking is enabled? What application are you using? How long after the
> first
> client closes the file did you try to access it on the second client? Does
> it
> work if the first client disconnects? Or if the first client machine is
> shut
> down?


I'm not certainly about how happens... the frequency is with .PSD photoshop
files, but can occurs with other files sporadically, but it's difficult
predict.
While using Adobe Photoshop, if at least 2 people opens the same file, the
file still locked, and remains inacessible and, now, is removed after the
first time the locked message occurs. At Adobe Photoshop, I see the message
I have no permission to access the file. After this, when the file is
removed after the process ends at server, It's possible save again. If I
forget save the file, it's lost.

I think this happens more frequently as larger are the files.

I don't know how to measure the time, but I'm certainly if the second opens
when the first is opened (and this can be seconds of difference), the bug
happens. But happened in times I don't understood yet.

If the first client disconnects, the file still locked forever. To don't
lost the file, I can copy at server with another name, for example... The
same happens if the first machine is shut down...


What is the output of smbclient when the problem occurs? (please check to
> see
> that this output does not contain sensitive information before sending it
> to
> the bug report)


I've tryed smbstatus and do not saw nothing different....

The fact that you can get access when you disable locking indicates that you
> don't have a permission issue, but a locking issue.


This problem is probably not a debian specific issue. I suspect it is a
> configuration issue. It might be better to try via the samba mailing list
> or
> IRC channel:


I will try both. But, anyway, I think this is a critical problem, files are
removed or corrupted... And I don't know how proceed with this anymore...


Saulo
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