On Tue, Sep 13, 2011 at 1:50 AM, Paul B. Henson <hen...@acm.org> wrote:
> I recently saw a message posted to the sunmanagers list complaining
> about installing a kernel patch and suddenly having his ACL's disappear
> completely whenever a chmod occurred. I replied and asked him to check
> if the aclmode attribute was gone, as it sounded like the default
> discard that was (questionably) implemented in OpenSolaris/Solaris 11.
> He confirmed it was, so it looks like the removal of aclmode was
> backported to Solaris 10? I don't know exactly what kernel patch he
> installed; it doesn't look like update 10 is out yet.

Update 10 has been out for about 3 weeks.

> Can somebody in the know confirm whether or not aclmode is gone in
> update 10? I didn't think they'd backport such a feature disabling
> change to Solaris 10, seems to not line up with the "long term stability
> and compatibility" that's supposed to be the benefit there...

I just tried on a U9 and U10 box. On the U10 system, I did a
simple 'chmod g+s' on a directory with an ACL, and wham, the
ACL vanished. Same operation on U9, and the ACL is preserved.

(This doesn't affect me all that much, as ACLs on ZFS have never
really worked right, so anything where the ACL is critical gets stored
on ufs [yuck].)

Also, aclmode is no longer listed in the usage message you see
if you do 'zfs get'.

-Peter Tribble
http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
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