Thanks broadmind (gustavo-vegas). I also have a same problem lockup during boot with newly installed updates today (4/4/2018). The kernel version is 4.4.0-119-generic #143. I also tried to boot with an older one (4.4.0-116 perhaps)to no avail. I can only boot in upstart mode on these kernels, also there were no problems when loading 4.4.0-112. Adding "noibpb" to GRUB_CMDLINE_LINUX= in /etc/default/grub allowed the machine to boot fully without problems.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1745349 Title: Hard lockup during boot with linux-image-4.4.0-112-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745349/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs