nfs4 krb5

[stef]

Since upgrading 12.04 to 3.13. series kernels I have severe problems with my nfs4 mounts:
dmesg states a lot of audit messages like
type=1702 audit(1413796772.963:54): op=linkat ppid=10428 pid=11265 auid=4294967295 uid=1001 gid=1001 euid=1001 suid=1001 fsuid=1001 egid=1001 sgid=8 fsgid=1001 tty=(none) ses=4294967295 comm="lockfile" exe="/usr/bin/lockfile" res=0
and
type=1302 audit(1413796772.963:55): item=0 name="/var/mail/_BwC.kONRUB.xxx" inode=737698 dev=00:18 mode=0100444 ouid=4294967294 ogid=4294967294 rdev=00:00 nametype=NORMAL
When looking in the nfs4-mounted directory, I see this files also with the wrong uid/gid of 4294967294:
 ls -l /var/mail/_*
-r--r--r-- 1 4294967294 4294967294 1 Oct 20 11:06 /var/mail/_0mC.RCNRUB.xxxx
-r--r--r-- 1 4294967294 4294967294 1 Oct 20 11:19 /var/mail/_2vC.aONRUB.xxxx
-r--r--r-- 1 4294967294 4294967294 1 Oct 20 11:19 /var/mail/_BwC.kONRUB.xxxx

After some segfaults of Browser[] like:
dmesg:
Browser[11989]: segfault at 0 ip 00007f3368b4935c sp 00007fff16ef41c0 error 6 in libmozalloc.so[7f3368b48000+2000]

the system resumes normal operation and ls shows again
ls -l /var/mail/_*
-r--r--r-- 1 myuid mygid 1 Oct 20 11:06 /var/mail/_0mC.RCNRUB.xxxx
-r--r--r-- 1 myuid mygid 1 Oct 20 11:19 /var/mail/_2vC.aONRUB.xxxx
-r--r--r-- 1 myuid mygid 1 Oct 20 11:19 /var/mail/_BwC.kONRUB.xxxx

The files system is mounted with nfsv4/krb5/ldap.

When this messages appear, the locking of the mail-file is not possible.

Using linux-3.11 does not show this behavior.

Best regards,
Stef

lsb_release -rd
Description: Ubuntu 12.04.5 LTS
Release: 12.04

apt-cache policy linux-image-3.13.0-37
linux-image-3.13.0-37-generic-lpae:
  Installed: (none)
  Candidate: (none)
  Version table:
linux-image-3.13.0-37-generic:
  Installed: 3.13.0-37.64~precise1
  Candidate: 3.13.0-37.64~precise1
  Version table:
 *** 3.13.0-37.64~precise1 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64 Packages
        100 /var/lib/dpkg/status

[stef (update-5)]

looks like a duplicate of Bug #1124250