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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 1564807

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/1564807

Title:
  nfs causes guest system to get stuck

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Host OS Ubuntu 15.10
  Guest OS Ubuntu 14.10

  Using Vagrant with nfs and Virtualbox and static ip on the private
  network.

  It is working perfectly except that after having suspended the host
  OS, the entire guest OS will be unusable. This does not happen when
  using the normal virtualbox shared folders.

  It's not only the nfs shared folder that is unusable, the entire OS is
  hanging. Even syslog does not seem to see much action. This is syslog
  on the guest, from waking up until vagrant halt is completed.

  Feb 26 07:15:33 vagrant kernel: [ 8375.252989] e1000: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
  Feb 26 07:16:11 vagrant kernel: [ 8413.109832] nfs: server 192.168.33.1 not responding, still trying
  Feb 26 07:16:38 vagrant kernel: [ 8440.687476] nfs: server 192.168.33.1 not responding, still trying
  Feb 26 07:17:01 vagrant CRON[3776]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)
  Feb 26 07:20:33 vagrant rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="753" x-info="http://www.rsyslog.com";] exiting on signal 15.

  When I try to ssh to the guest system I the motd and last login: ..., but nothing more, it just hangs.
  If I was already logged in the guest system through ssh then that session is unresponsive (after pressing enter).

  How can this be fixed?
  How should I debug it?

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