Error when changing windows acl

[Costelli Enrico]

Hello,

I have installed  on debian server 8.5 samba 4.2.10, configured as domain file server  memberin windows domain.

All run ok, but when tray to change the user acl into same folder the client show this error message:

"Unable to save permission changes on  Folder  Name There is not enough space on the disk"

I have tried to increase   log level = 5 but I didn't find any issue.
Next a part of samba.log file relative to our share:
[2016/08/10 10:41:20.186357,  2] ../source3/param/loadparm.c:2596(lp_do_section)
  Processing section "[DatiAzienda]"
  doing parameter writeable = yes
  doing parameter hide unreadable = yes
  doing parameter read only = no
  doing parameter path = /share1/DatiAzienda
  doing parameter comment = DatiAzienda
[2016/08/10 10:41:46.595334,  2] ../source3/modules/vfs_acl_xattr.c:193(connect_acl_xattr)
  connect_acl_xattr: setting 'inherit acls = true' 'dos filemode = true' and 'force unknown acl user = true' for service DatiAzienda
[2016/08/10 10:41:46.595439,  5] ../source3/lib/messages.c:384(messaging_register)
  Registering messaging pointer for type 784 - private_data=0x7f5b9f3c8cb0


How can solve this issue ?

Thanks

Best regards

Enrico