One host machine has become unstable. This machine hosts Debian, Fedora, OpenSuse, and Scientific7.

     I recently upgraded this machines hardware from an i7-2600 to an i7-6700k processor, and also recently upgraded from Ubuntu 15.04 to Ubuntu 15.10.

     Either the software or hardware upgrade may have introduced this instability.  However, it did not manifest until the operating system upgrade which also was interrupted so some things may not have installed properly.

     I am going to move all the guests to another machine, bring this machine back and re-install Ubuntu 15.10 from a fresh install, and then stress test it to make sure it is stable or repair any hardware problems that may show up during stress testing.

     There will be down time for each of these guest machines of about an hour to move them.  And I can’t get to this until later in the day as I have a doctors appointment to follow-up on a minor surgery and infection this morning.

     If you need a modern Redhat machine, I suggest using Centos7 in the meantime,  I would suggest Ubuntu or Mint as alternatives to Debian in the meantime.