And here's the syslog from that period. The "inverter" entries are from my solar panels, you can ignore them.
** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/926526/+attachment/2715499/+files/syslog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/926526 Title: Virtualbox reboots system after precise upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/926526/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs