Hi, on my end I rechecked and can start a guest with virt-manager just fine. So we would need to find what is different on your configuration.
Usual good data is: 1. the guest XML representation (virsh dumpxml ...) 2. a list of installed packages (apport would have provided that, but it seems you skipped) 3. dmesg (in case there are apparmor denials) Related to the error I found was some cgroupv2 code that isn't ready in 19.04 yet and should not be used. Actually it shouldn't be in there. Other people have ran into similar [1] and only with libvirt >=5.5 [2] I'd expect that to work which would mean Ubuntu 20.04. Have you enabled/configured/tested cgroupv2 to maybe trigger this? [1]: https://unix.stackexchange.com/questions/525498/libvirt-will-not-start-vms-with-error-invalid-value-cpu-for-cgroup-subtree [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1727149 ** Bug watch added: Red Hat Bugzilla #1727149 https://bugzilla.redhat.com/show_bug.cgi?id=1727149 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845562 Title: libvirt error Invalid value '+cpu' for 'cgroup.subtree_control' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1845562/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
