Hi, https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1342083/comments/20 reads: "nevermind, my issue was caused by piuparts messing the /dev/pts mount permissions".
And indeed, before I ever run piuparts since my last reboot I could not reproduce this bug, and then I run piuparts and this bug is back. Cheers, -- intrigeri

