I updated to 4.4.132-51 default kernel on my 64-bit system. It will no longer boot. The process tries to wait on 8 startup items over and over. It is impossible to read everything on the low-resolution boot screen, but I get messages like:
Sleeping function called from an invalid context in_atomic() irqs_disabled() BUG: scheduling while atomic: systemd-udevd/220/.... BUG: Workqueue leaked lock or atomic: kworker/6: last function:bpf_done_on_this_cpu
It boots properly using the previous kernel.