On Nov 18, 2021, at 7:14 AM, Yedidyah Bar David <didi@redhat.com> wrote:

On Thu, Nov 18, 2021 at 2:14 PM Christoph Timm <ovirt@timmi.org> wrote:

looks like they are already aware of it:

Indeed.

https://lists.ovirt.org/archives/list/devel@ovirt.org/thread/BDYP62MAJL2QVQZ7RHM2USZD4HXBGUA6/

Now replied there, and created this bug:

https://bugzilla.redhat.com/show_bug.cgi?id=2024605

Also posted now to centos-devel, "qemu-kvm 6.1.0 with 16 PCIE root
ports is broken".

For the time being, we know of two workarounds:

1. Use qemu-kvm 6.0.0, available from the advanced virtualization SIG
repo, should automatically be enabled by ovirt-release package. So
e.g.:

Per host:
- Move to maintenance
- dnf downgrade qemu-kvm-core-6.0.0
- Activate

2. Configure your engine to use less than 16 pcie root ports, e.g. 12 like here:

https://gerrit.ovirt.org/c/ovirt-system-tests/+/117689

This might be problematic, though, if you need to add many devices to your VMs.

Best regards,

--
Didi
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