I've investigated this issue in Willy: Hugepages are now mounted on /dev/hugepages and not in /run/hugepages
And also libvirt wants to use /dev/hugepages and more precisely /dev/hugepages/libvirt/qemu (so without the kvm in the middle of the path) This means, the apparmor rule for huge pages points to the wrong path. The following change should be made in the profile /etc/apparmor.d/abstractions/libvirt-qemu remove: owner "/run/hugepages/kvm/libvirt/qemu/**" rw, add: owner "/dev/hugepages/libvirt/qemu/**" rw, (reload the profile with service apparmor reload) I had to create this path with the right owner-rights like this: mkdir -p /dev/hugepages/libvirt/qemu chown libvirt-qemu:kvm /dev/hugepages/libvirt/qemu Now hugepages works again... Please pay attention to the fact that in /usr/share/qemu/init/qemu-kvm- init the mountpoint /run/hugepages is created and mounted but apparently, this isn't useful any more (to my opinion)... -- 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/1461012 Title: Hugepage and KSM not configured correctly under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1461012/+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
