kevin added a new comment to an issue you are following:
``
I spent several hours yesterday looking into this and finally tracked it down to firewall
rules. The iptables firewall had been restarted, but libvirtd wasn't so it didn't
insert it's nat rules in. This meant that guest vm's couldn't get out to the
net for the initramfs/kernel to boot.
``
To reply, visit the link below or just reply to this email
https://pagure.io/releng/issue/8299