[Samba] strange umasks with vfs_ceph backend

[Jeremy Allison]

On Sun, Feb 27, 2022 at 06:52:11PM +0000, Jochen Korge || PCSM GmbH via samba wrote:
>Hi,
>I found some mismatch between the Wiki and my system:
>
>https://www.samba.org/samba/docs/current/man-html/vfs_acl_xattr.8.html
>states, that
>acl_xattr:ignore system acls = yes
>Enforces:
>create mask = 0666
>directory mask = 0777
>
>Via Samba created directories and files do have:
>File: 0764
>Directory: 0775
>Though.
>
>Is this some "specialty" of vfs_ceph or a bug or "only" an Documentation issue?
>Do those permissions have any influence on Windows-Clients?

Quick question, in your smb.conf, do you have:

obey pam restrictions = yes

set ?