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[stef <update@xxxxxxxxxxxxxxxxx>]

looks like a duplicate of Bug #1124250

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https://bugs.launchpad.net/bugs/1383223

Title:
  nfs4 krb5

Status in linux-lts-trusty package in Ubuntu:
  New

Bug description:
  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

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