> Can you say whether it's the second problem that was breaking the desktop > coming up on login? IOW, I observed two problems. One was a freeze during > the boot process, and the other was a freeze during the login process > (although the latter wasn't a total freeze, as ssh still worked).
As far as I can tell from the history here, CONFIG_HARDENED_USERCOPY_PAGESPAN was responsible for the desktop not coming up. Having the "rewind the stack before do_exit()" patch in combination with that option prevented booting, becuase the usercopy hardening created an oops that triggered the code paths affected by the patch (but I'm still not sure what about that patch caused boot to hang). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1627198 Title: 4.8.0 kernels do not complete boot process on VM To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1627198/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs