It started right after I tried to run our OpenStack CI (so the nested operation) on Bionic (with OpenStack Queens). Previously I used Xenial (with kernel 4.4.0), that still works. The host kernel is still from Xenial.
So: Host with KVM->Guest with KVM->Nested Guest Xenial (4.4) -> Bionic (4.15)-> any other - crash Xenial (4.4) -> Xenial (4.4) -> any other - works -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1773184 Title: Starting a KVM guest in a guest (nested VM) crash the kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1773184/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
