[ovirt-users] oVirt 3.5 on RHEL 6.6 hyperv enabled breaks Windows VMs

[Francesco Romani]

----- Original Message -----
> From: "Charles Gruener" <cgruener at gruener.us>
> To: "Francesco Romani" <fromani at redhat.com>
> Cc: "Michal Skrivanek" <michal.skrivanek at redhat.com>, "users at ovirt.org Users" <users at ovirt.org>
> Sent: Monday, October 27, 2014 3:56:00 PM
> Subject: Re: [ovirt-users] oVirt 3.5 on RHEL 6.6 hyperv enabled breaks Windows VMs
> 
> Here's what's installed on one of my hypervisors:
> 
> gpxe-roms-qemu.noarch            0.9.7-6.12.el6
>  @rhel-x86_64-server-6
> libvirt.x86_64                   0.10.2-46.el6
> @rhel-x86_64-server-6
> libvirt-client.x86_64            0.10.2-46.el6
> @rhel-x86_64-server-6
> libvirt-lock-sanlock.x86_64      0.10.2-46.el6
> @rhel-x86_64-server-optional-6
> libvirt-python.x86_64            0.10.2-46.el6
> @rhel-x86_64-server-6
> ovirt-release35.noarch           001-1
> @/ovirt-release35
> qemu-img-rhev.x86_64             2:0.12.1.2-2.415.el6_5.14 @ovirt-3.5
> 
> qemu-kvm-rhev.x86_64             2:0.12.1.2-2.415.el6_5.14 @ovirt-3.5
> 
> qemu-kvm-rhev-tools.x86_64       2:0.12.1.2-2.415.el6_5.14 @ovirt-3.5
> 
> vdsm.x86_64                      4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-cli.noarch                  4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-jsonrpc.noarch              4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-python.noarch               4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-python-zombiereaper.noarch  4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-xmlrpc.noarch               4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> vdsm-yajsonrpc.noarch            4.16.7-1.gitdb83943.el6   @ovirt-3.5
> 
> virt-what.x86_64                 1.11-1.2.el6
>  @anaconda-RedHatEnterpriseLinux-201301301459.x86_64/6.4

OK, seems a stock RHEL 6.6. I wonder if the recommended hv settings
are really supported on old QEMUs. Need to check about this: will do and will report.

If you'll be the most welcome to file a bug against oVirt for this issue,
and set target release to 3.5.1, so we can track this issue.
 
> I noticed the machines do not have the qemu-kvm package installed, only
> qemu-kvm-rhev.  What's the difference in those two packages?  When I try to
> manually install qemu-kvm, it won't and lets me know that:
> 
> "Package 2:qemu-kvm-0.12.1.2-2.445.el6.x86_64 is obsoleted by
> 2:qemu-kvm-rhev-0.12.1.2-2.415.el6_5.14.x86_64 which is already installed"

This is totally expected. qemu-kvm-rhev provides additional facilities
and it is better to use it.

> I've also noticed that I can't live snapshot machines because it says my
> underlying qemu doesn't support it and thought that might be a related
> issue.

This is known and different issue:

https://bugzilla.redhat.com/show_bug.cgi?id=1149667

hopefully the fix will be available soon
 
> The machines have Intel(R) Xeon(R) CPU E5-2670 CPUs, if it makes any
> difference.
> 
> Charles

Thanks!

-- 
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani