Thanks for testing. That suggests this bug is not due to the PTI security patches.
Can you next test the latest mainline kernel to see if this bug is already fixed upstream. It can be downloaded from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15-rc7 ** Tags removed: pti ** Tags added: needs-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1742789 Title: Xen PV Guest won't boot latest kernel- OSError: [Errno 28] No space left on device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742789/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs