Same issue here, on a Supermicro 6018R-WTR server. I've attached a screenshot of the hung state. Note that the watchdog message is because I've set up IPMI watchdog on this machine (as a workaround for this issue). The hang on reboot is not happening every time for me - something like 10%-20% of reboots result in a hang. Kernel version is 4.4.0-87. I have tried setting reboot=pci on the kernel command line and blacklisting mei and mei_me modules, but neither of those resolved the problem.
** Attachment added: "screenshot of hung state" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1619844/+attachment/4921830/+files/screenshot.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1619844 Title: [Xenial] shutdown/reboot hangs at "Reached target Shutdown" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1619844/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
