nfsv4 group ACLs not working

[BPplays]

im using krb5p nfsv4 only and setting group acls isn't working, but when i set user acls it works fine


before

Code:

-> nfs4_getfacl /mnt/nfs/nas-demo1-test2/
# file: /mnt/nfs/nas-demo1-test2/
A:fd:OWNER@:rwaDdxtTnNcCoy
A:fdg:GROUP@:rwaDdxtTnNcy
A:fdg:nas_admin@censored.org:rwaDdxtTnNcCoy
A:fdg:media_admin@censored.org:rwaDdxtTnNcCoy
A:fdg:media_read@censored.org:rxtnc

-> id media_user
uid=937400020(media_user) gid=937400020(media_user) groups=937400020(media_user),937400019(media_read)
-> ls /mnt/nfs/nas-demo1-test2/
media
-> sudo -u media_user ls /mnt/nfs/nas-demo1-test2/
ls: cannot open directory '/mnt/nfs/nas-demo1-test2/': Permission denied

after

Code:

-> sudo -u media_user ls /mnt/nfs/nas-demo1-test2/
media
-> nfs4_getfacl /mnt/nfs/nas-demo1-test2/
# file: /mnt/nfs/nas-demo1-test2/
A:fd:OWNER@:rwaDdxtTnNcCoy
A:fdg:GROUP@:rwaDdxtTnNcy
A:fdg:nas_admin@censored.org:rwaDdxtTnNcCoy
A:fdg:media_admin@censored.org:rwaDdxtTnNcCoy
A:fdg:media_read@censored.org:rxtnc
A:fd:media_user@censored.org:rxtnc