I tried things once more, this time OVS wasn't active at all (in the former try it was active after boot and then disabled) - still failing.
Next I tried to use a different kernel(5.4.0-105-generic) I don't know when in >5.4 this started to fail, it surely worked a few months ago already using the an HWE kernel back then and running the same tests that now stumbled over this. I usually run with: linux-image-generic-hwe-20.04-edge 5.13.0.27.29~20.04.13 => the one that initially failed And now I cross tested: linux-generic 5.4.0.105.109 => working fine Would it be helpful to you to also get (it is somewhat suspicious that egde is behind non-edge): linux-image-generic-hwe-20.04 5.13.0.39.44~20.04.24 Would there be any other build that I should try helping you to pinpoint this? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1966870 Title: Focal 20.04.4 5.13.0-27-generic crashing disabling CPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1966870/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
