Public bug reported: Hi.
We have OpenStack cluster (ubuntu 20.04 ussuri) with old Skylake (Skylake-Server-IBRS) Intel CPU, and try to extend cluster with new Cascadelake (Cascadelake-Server-noTSX) servers with backward compatibility mode in nova.conf cpu_mode = custom cpu_models = Skylake-Server-IBRS But got an error: CPU doesn't have compatibility Similar issue for Red Hat: https://bugzilla.redhat.com/show_bug.cgi?id=1761678 ** Affects: libvirt (Ubuntu) Importance: Undecided Status: New ** Attachment added: "Skylake" https://bugs.launchpad.net/bugs/1922907/+attachment/5485199/+files/lscpu_4114.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1922907 Title: Unable to use Skylake capability on Cascadelake server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1922907/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
