I think this may be solved using the following fix: https://lists.ubuntu.com/archives/kernel-team/2019-July/thread.html
I've prepared some test kernel debs for you to download and install to see if this fixes the issue. The .deb packages can be found at: https://kernel.ubuntu.com/~cking/lp1827884/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1827884 Title: x86: mm: early boot problem on i386 with KPTI enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1827884/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs