----- Original Message ----- > From: "George Zhao" <[email protected]> > To: "Steve Gordon" <[email protected]> > Cc: [email protected] > Sent: Wednesday, December 14, 2016 3:01:11 PM > Subject: Re: [Openstack-operators] [all] Known issue with CentOS 7.3 and > qemu-kvm(-ev) 2.6.0 > > I'm using kvm, just temporally changed to host-passthrough, waiting on > qemu-kvm-ev-2.6
Looks like it's up now, I see qemu-kvm-ev-2.6.0-27.1.el7.x86_64.rpm and friends in: http://mirror.centos.org/centos/7/virt/x86_64/kvm-common/ Thanks, Steve > On 12/14/2016 05:22 PM, Steve Gordon wrote: > > ----- Original Message ----- > >> From: "George Zhao" <[email protected]> > >> To: [email protected] > >> Sent: Tuesday, December 13, 2016 7:44:02 PM > >> Subject: Re: [Openstack-operators] [all] Known issue with CentOS 7.3 and > >> qemu-kvm(-ev) 2.6.0 > >> > >> yup, I have to use cpu_mode=host-passthrough to get vms booting up. > > > > Are you using virt_type="qemu" or virt_type="kvm"? If the later you should > > be OK to switch back to host-model once the qemu-kvm-ev-2.6.0 build is > > available. > > > > Thanks, > > > > Steve > > > >> On 12/14/2016 12:13 PM, David Moreau Simard wrote: > >>> Hi, > >>> > >>> CentOS 7.3 was released yesterday and a newer version of qemu-kvm-ev > >>> was shipped as part of this release if you have the CentOS > >>> Virtualization SIG repositories enabled. > >>> > >>> If you're using RDO >= Newton, you will have this repository enabled. > >>> It was not yet enforced in the Mitaka release so you might or might > >>> not have it, depending on your deployment. > >>> Older releases of OpenStack may also be affected but they are not > >>> proactively tested anymore due to EOL. > >>> > >>> There is currently a known issue when using the following > >>> configuration in nova for compute: > >>> == > >>> virt_type=qemu > >>> cpu_mode=host-model > >>> == > >>> > >>> This combination will yield in failed attempts at creating instances > >>> and you will see errors like these in nova-compute.log [1] or the > >>> libvirt logs [2]. > >>> The problem boils down to libvirt trying to pass a cpu extension that > >>> is unknown to qemu: > >>> == > >>> qemu-kvm: CPU feature arat not found > >>> == > >>> > >>> There is a bugzilla [3] for this issue but in the meantime users are > >>> encouraged to work around the issue by setting "cpu_mode=none" if they > >>> are using the qemu (not KVM) hypervisor. > >>> Please note that Nova defaults the 'cpu_mode' parameter to > >>> 'host-model' [4] if 'cpu_mode' is not explicitely configured and > >>> 'virt_type' is 'qemu' so if you're running into this issue, you will > >>> need to explicitely configure it. > >>> > >>> [1]: > >>> http://logs.openstack.org/76/409476/4/check/gate-puppet-openstack-integration-4-scenario003-tempest-centos-7/8881991/logs/nova/nova-compute.txt.gz#_2016-12-13_16_39_50_832 > >>> [2]: > >>> http://logs.openstack.org/76/409476/4/check/gate-puppet-openstack-integration-4-scenario003-tempest-centos-7/8881991/logs/libvirt/qemu/instance-00000001.txt.gz > >>> [3]: https://bugzilla.redhat.com/show_bug.cgi?id=1371617 > >>> [4]: > >>> http://git.openstack.org/cgit/openstack/nova/tree/nova/virt/libvirt/driver.py?id=146b27f22327f8d60c1017c22ccf18d0e16f1eb7#n3411 > >>> > >>> David Moreau Simard > >>> Senior Software Engineer | Openstack RDO > >>> > >>> dmsimard = [irc, github, twitter] > >>> > >>> _______________________________________________ > >>> OpenStack-operators mailing list > >>> [email protected] > >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > >>> > >> > >> _______________________________________________ > >> OpenStack-operators mailing list > >> [email protected] > >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > >> > > > -- Steve Gordon, Principal Product Manager, Red Hat OpenStack Platform _______________________________________________ OpenStack-operators mailing list [email protected] http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
