[Samba] XFS ACLs vanish. (2.2.2a and 2.2.3a)

[Ken D'Ambrosio]

Hiya.  I've got an XFS partition, have compiled and installed all the
XFS stuff, then compiled (with --with-acl-support) samba, which then
returns:


checking whether to support ACLs... checking for acl_get_file in
-lacl... yes
checking for ACL support... yes
Using posix ACLs


So it would seem to me that ACLs would be supported.  So then I install
and run it, add the box to the (Samba 2.2.2) domain, surf via Windows
(W2K) to a share point, modify the ACLs on a file or directory, and save
them.  Everything's fine so far.  Except that, when I look at the
security for the file again, all my ACL-based changes are gone. 
(Happens in front of my eyes if I hit "Apply" instead of "OK" when
changing ACLs.)

Ideas?

Thanks muchly, as I'm thoroughly stumped,

-Ken