I tried to verify the case and fix myself which is a prereq for good steps to reproduce for the SRU anyway. I came up with test steps based on what was initially reported. $ uvt-simplestreams-libvirt --verbose sync --source http://cloud-images.ubuntu.com/daily arch=ppc64el label=daily release=bionic $ uvt-kvm create --password=ubuntu cpaelzer-bionic release=bionic arch=ppc64el label=daily $ for i in {1..20}; do h=$(printf "\x$(printf %x $((98+$i)))"); echo "<disk type='file' device='disk'><driver name='qemu' type='qcow2'/><source file='/var/lib/uvtool/libvirt/images/cpaelzer-bionic-t$i.qcow'/><alias name='virtio-disk0'/><target dev='vd$h' bus='virtio'/></disk>" > disk.xml; qemu-img create -f qcow2 /var/lib/uvtool/libvirt/images/cpaelzer-bionic-t$i.qcow 1M; virsh attach-device artful-testguest disk.xml; done $ virsh console <guest> # in guest then $ sudo reboot
That works for me with overall 22 disks. I see a bunch of those: virtioblk_transfer: Access beyond end of device! virtioblk_transfer failed! type=0, status = 1 But it boots fine still and all disks are attached just fine. If instead I add all disks to the device statically before starting it it is the same. Do I just need more devices - any options to be set? Please also help to provide working steps to reproduce (that if possible does not contain having 20+ real disks reachable). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1734856 Title: Can't boot VM with more than 16 disks (slof buffer issue) To manage notifications about this bug go to: https://bugs.launchpad.net/slof/+bug/1734856/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs