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

[Saulo Soares de Toledo]

Updating: Samba 3.6.7 at experimental do not solves this problem.
And I think none of the bugs solved at 3.6.8 are this too.

2012/9/17 Saulo Soares de Toledo <saulotoledo at gmail.com>

>  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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.alioth.debian.org/pipermail/pkg-samba-maint/attachments/20120917/2416a99b/attachment.html>