###After dnf upgrade with kernel-5.11.0-0.rc5 or kernel-5.11.0-0.rc6,
KVM domains do not start.

internal error: Failed to autostart VM 'ns2.fc33.nunix-it.com': failed to load cgroup BPF prog: Invalid argument

### Workaround - reboot the hypervisor with kernel-5.11.0-0.rc4.129.fc34.x86_64. This way all VMs start with no issues


### Here is the full log chain when I try to start a VM:
Feb  3 23:54:26 kvm-external systemd-machined[1021]: New machine qemu-2-ns2.fc33.nunix-it.com.
Feb  3 23:54:26 kvm-external systemd[1]: Started Virtual Machine qemu-2-ns2.fc33.nunix-it.com.
Feb  3 23:54:26 kvm-external systemd[1]: iscsi.service: Unit cannot be reloaded because it is inactive.
Feb  3 23:54:26 kvm-external journal[1343]: failed to load cgroup BPF prog: Invalid argument
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=cgroup reason=deny vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 cgroup="/sys/fs/cgroup/machine.slice/machine-qemu\x2d2\x2dns2.fc33.nunix\x2dit.com.scope/" class=all exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=failed'
Feb  3 23:54:26 kvm-external kernel: bridge0: port 2(vnet1) entered disabled state
Feb  3 23:54:26 kvm-external audit: ANOM_PROMISCUOUS dev=vnet1 prom=0 old_prom=256 auid=4294967295 uid=107 gid=107 ses=4294967295
Feb  3 23:54:26 kvm-external kernel: device vnet1 left promiscuous mode
Feb  3 23:54:26 kvm-external kernel: bridge0: port 2(vnet1) entered disabled state
Feb  3 23:54:26 kvm-external systemd[1]: Received SIGRTMIN+21 from PID 546 (plymouthd).
Feb  3 23:54:26 kvm-external NetworkManager[1041]: <info>  [1612396466.3272] device (vnet1): state change: activated -> unmanaged (reason 'unmanaged', sys-iface-state: 'removed')
Feb  3 23:54:26 kvm-external systemd[1]: Finished Hold until boot process finishes up.
Feb  3 23:54:26 kvm-external audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=plymouth-quit-wait comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external NetworkManager[1041]: <info>  [1612396466.3284] device (vnet1): released from master device bridge0
Feb  3 23:54:26 kvm-external systemd[1]: Reached target Multi-User System.
Feb  3 23:54:26 kvm-external systemd[1]: Reached target Graphical Interface.
Feb  3 23:54:26 kvm-external systemd[1]: Starting Update UTMP about System Runlevel Changes...
Feb  3 23:54:26 kvm-external systemd[1]: machine-qemu\x2d2\x2dns2.fc33.nunix\x2dit.com.scope: Succeeded.
Feb  3 23:54:26 kvm-external systemd-machined[1021]: Machine qemu-2-ns2.fc33.nunix-it.com terminated.
Feb  3 23:54:26 kvm-external audit[1687]: SYSTEM_RUNLEVEL pid=1687 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='old-level=N new-level=5 comm="systemd-update-utmp" exe="/usr/lib/systemd/systemd-update-utmp" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external systemd[1]: systemd-update-utmp-runlevel.service: Succeeded.
Feb  3 23:54:26 kvm-external systemd[1]: Finished Update UTMP about System Runlevel Changes.
Feb  3 23:54:26 kvm-external audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-update-utmp-runlevel comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-update-utmp-runlevel comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external journal[1343]: unable to open '/sys/fs/cgroup/machine.slice/machine-qemu\x2d2\x2dns2.fc33.nunix\x2dit.com.scope/': No such file or directory
Feb  3 23:54:26 kvm-external journal[1343]: Failed to remove cgroup for ns2.fc33.nunix-it.com
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=disk reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 old-disk="?" new-disk="/backup/vm/images/ns2.fc33.nunix-it.com.qcow2" exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=net reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 old-net="?" new-net="52:54:00:96:da:dc" exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=dev reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 bus=usb device=555342207265646972646576 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=dev reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 bus=usb device=555342207265646972646576 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=rng reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 old-rng="?" new-rng="/dev/urandom" exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=mem reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 old-mem=0 new-mem=2097152 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_RESOURCE pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm resrc=vcpu reason=start vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 old-vcpu=0 new-vcpu=2 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
Feb  3 23:54:26 kvm-external audit[1343]: VIRT_CONTROL pid=1343 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='virt=kvm op=start reason=booted vm="ns2.fc33.nunix-it.com" uuid=aefaea3b-f326-49a0-a894-040bac360c27 vm-pid=-1 exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=failed'
Feb  3 23:54:26 kvm-external journal[1343]: internal error: Failed to autostart VM 'ns2.fc33.nunix-it.com': failed to load cgroup BPF prog: Invalid argument


Hope you can help.
Thanks