Kolla deploy ubuntu gate is red now. here is the related bug[0]. libvirt failed to access the console.log file when booting instance. After made some debugging, i got following. # how console.log works nova create a empty console.log with nova:nova ( this is another bug workaround actually[1]), then libvirt ( running with root ) will change the file owner to qemu process user/group ( configured by dynamic_ownership ). Now qemu process can write logs into this file. # what's wrong now libvirt 2.5.0 stop change the file owner, then qemu/libvirt failed to write logs into console.log file # other test * ubuntu + fallback libvirt 1.3.x works [2] * ubuntu + libvirt 2.5.0 + chang the qemu process user/group to nova:nova works, too.[3] * centos + libvirt 2.0.0 works, never saw such issue in centos. # conclusion I guess there are something wrong in libvirt 2.5.0 with dynamic_ownership [0] https://bugs.launchpad.net/kolla-ansible/+bug/1668654 [1] https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L2922,L2952 [2] https://review.openstack.org/442673 [3] https://review.openstack.org/442850 -- Regards, Jeffrey Zhang Blog: http://xcodest.me -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20170308/1e026bf9/attachment.html>