Bug#779133: Ok, solved, but still a strange thing...

[Marco Gaiarin <gaio@sv.lnf.it>]

After updating also the NFS server, after fiddling a bit with NFS
parameters, after hitting my head around the room... i've found a
solution.

AFAIK NFSv3 use a ''nonstandard'' ACL mechanism that works well only
for POSIX ACL, while NFSv4 use a more complex one, suited to take into
account different ACL schemas.
I use POSIX ACL, so NFSv3 is well suited for me.

Simply i've had in /etc/fstab:

	dixie:/srv/wviola/sources /srv/wviola/sources nfs acl	0	0

and worked perfeclty[1] just before rebooting the NFS client machine.
Now i was forced to put instead:

	dixie:/srv/wviola/sources /srv/wviola/sources nfs nfsvers=3,acl	0	0

so seems to me that ''something'' changed the default NFS version from
3 to 4.


Trying to downgrade lead me to the suspect that the guilty is not the
kernel; but really i've gone back on upgrade history and found nothing
related to NFS of mount upgraded recently...


Boh...


[1]: i was sure because i've a cron script that hourly try to mangle ACLs,
 and never complained about missing ACL before the reboot...