[Samba] Samba 4.0.7 PANIC invalid lock_order

[bruno.meneuvrier at ioxar.fr]

Dear all,
I'm struggling to get samba 4.0.7 working as a file server. I'm using mac osx 10.8.4 with Excel for Mac 2011 (14.3.6).
I'm able to create a new Spreadsheet and to save it with a new name. I'm also able to read it. When I open it  and change a few cells, I cant't save it. I have to save it with a new name.
I found these lines in log file:
2013/07/23 15:27:12.407416,  0] ../lib/dbwrap/dbwrap.c:133(debug_lock_order)
  lock order:  1:/usr/local/samba/var/lock/locking.tdb 2:<none> 3:<none>
[2013/07/23 15:27:12.407600,  0] ../source3/lib/util.c:810(smb_panic_s3)
  PANIC (pid 31203): invalid lock_order

Maybe, it's the root cause…

You will find attached conf and log files.

Thanks

Bruno