Yeah @Boris - it really seems to be an issue bound to the Merom/Penryn processor generation.
I asked Andreas to check through some kernels and qemu versions so that we maybe eventually can consider bisecting something. But that will take a bit of time. Of course everyone able to spend some time can consider checking a few kernels of [1] as well (probably the easiest test to begin with). Still if there is an x86-microarchitecture expert out there that say "ah penryn, I know we added/dropped ... " please speak up :-) [1]: https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1866870 Title: KVM Guest pauses after upgrade to Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1866870/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
