Spontaneous reboot before AND after memory swap

[walt]

Jonathon McKitrick wrote:
Hi all,

I'm running 4.11 on a server, and for the last week or so it has been
spontaneously rebooting about once a day or so...
I have a machine that was doing the same thing because the BIOS has
an over-temperature auto-shutdown feature.  For reasons I don't
understand, FreeBSD would shutdown and reboot the machine instead
of powering off.  DFly on the same machine would power off completely.