Comment 6 for bug 1604396

Hi,

I cannot verify that the new upstream kernel fixes that.

Also suffering from not being able to log into an NFS4/Kerberoized directory with 16.04 anymore while the same works fine on 14.04. idmapd are configured identically.

Ubuntu 16.04 (with new upstream kernel)
------------

Could not chdir to home directory /common/home/harenber: Permission denied
groups: cannot find name for group ID 50094
-bash: /common/home/harenber/.bash_profile: Permission denied
harenber@bene:/$ mount | grep nfs
whep-nfs.pleiades.uni-wuppertal.de:/home on /common/home type nfs4 (rw,relatime,vers=4.0,rsize=8192,wsize=8192,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=krb5i,clientaddr=132.195.104.97,local_lock=none,addr=132.195.125.8)
harenber@bene:/$ cd /common
harenber@bene:/common$ ls -l
total 4
drwxr-xr-x 88 root users 4096 Sep 30 13:08 home
harenber@bene:/common$ cd home
-bash: cd: home: Permission denied
harenber@bene:/common$ klist
Ticket cache: KEYRING:persistent:1548:krb_ccache_JGqN6o8
Default principal: <email address hidden>

Valid starting Expires Service principal
06.10.2016 10:08:11 07.10.2016 10:08:11 <email address hidden>
harenber@bene:/common$ kinit -f
Password for <email address hidden>:
harenber@bene:/common$ klist
Ticket cache: KEYRING:persistent:1548:krb_ccache_JGqN6o8
Default principal: <email address hidden>

Valid starting Expires Service principal
06.10.2016 10:09:10 07.10.2016 10:09:07 <email address hidden>
harenber@bene:/common$ ls -l
ls: cannot access 'home': Permission denied
total 0
d????????? ? ? ? ? ? home
harenber@bene:/common$ uname -a
Linux bene.physik.uni-wuppertal.de 4.4.23-040423-generic #201609300709 SMP Fri Sep 30 11:11:23 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
harenber@bene:/common$

whereas on 14.04:

[10:10] harenber@whep-nfs:~ $ klist
Ticket cache: FILE:/tmp/krb5cc_1548_S3S8IP
Default principal: <email address hidden>

Valid starting Expires Service principal
10/06/2016 10:10:07 10/07/2016 10:10:07 <email address hidden>
[10:10] harenber@whep-nfs:~ $ cd /common
[10:10] harenber@whep-nfs:/common $ ls
home
[10:10] harenber@whep-nfs:/common $ cd home
[10:10] harenber@whep-nfs:/common/home $ uname -a
Linux whep-nfs 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
[10:10] harenber@whep-nfs:/common/home $

Best regards,

  Torsten