Seeing what I believe is this bug on a 16.04 install that boots from iSCSI LUN. When I shut down, it goes just past shutting down the network interfaces, then slows down and starts throwing task blocked messages from the kernel. It eventually gets down to "Reached Target Shutdown" before getting completely stuck. I have to manually shut down or reboot the machine from that point.
Seeing what I believe is this bug on a 16.04 install that boots from iSCSI LUN. When I shut down, it goes just past shutting down the network interfaces, then slows down and starts throwing task blocked messages from the kernel. It eventually gets down to "Reached Target Shutdown" before getting completely stuck. I have to manually shut down or reboot the machine from that point.