Could you please show exactly which versions of which packages yo uare using (and anything you hand-built)?
If all is using stock packages, then could you please, the next time this happens , do apport-collect 1464278 ** Changed in: qemu (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1464278 Title: Qemu-Libgfapi: periodical shutdown of virtual machines. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1464278/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs