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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1542826

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1542826

Title:
  NFS Client Ignores TCP Resets

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Steps to reproduce:
  1) Mount NFS share from HA cluster with TCP.
  2) Failover the HA cluster. (The NFS server's IP address moves from one
     machine to the other.)
  3) Access the mounted NFS share.

  Expected results:
  Accessing the NFS mount works fine immediately.

  Actual results:
  Accessing the NFS mount hangs for 15 minutes. Then the TCP connection times out, a new connection is established, and it works fine again.

  After the IP moves, the new server responds to the client with TCP RST
  packets, just as I would expect. I would expect the client to tear
  down its TCP connection immediately and re-establish a new one. But it
  doesn't. Am I confused, or is this a bug?

  For the duration of this test, ufw was disabled on the client machine.
  I have a packet capture.

  We've been using UDP instead of TCP as a work-around.

  The system is running Ubuntu 14.04 with Linux 3.13.0-76-generic.

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