On 11/26/18, 5:31 PM, "Jerry Hoemann" <jerry.hoemann@xxxxxxx> wrote: > Tao, > > If you're on a system running systemd, the default behavior is to > enable the watchdog during shutdown. This guards against shutdown hanging. > So this message will be routinely printed out during orderly shutdown. Thank you Jerry for the comments. I actually use a separate daemon process to kick the watchdog on my BMC system. The daemon monitors temperature sensors and other system states and kicks watchdog periodically: if the daemon gets stuck or exits, then the machine needs to reboot even if kernel/systemd is fine. Perhaps I need to look for a better/official way to manage the watchdog device.. BTW, I will be travelling abroad in the new few days and may not be able to reply emails timely. Thank you again for jumping in. Best regards, Tao Ren