Recent 10-STABLE powers off during boot if SMP is enabled

[Nikolay Denev]

Hi,

I've just upgraded from a few months old 10-STABLE to today's
10-STABLE and suddenly
my machine started to poweroff during boot.
The machine itself is a bit old and quirky (HP ex470) and the kernel
is with RCTL, VIMAGE and other stuff not in GENERIC.

The last thing that flashes on the screen before powering off is this
: http://tinypic.com/r/2uf3oqt/8

I've then tried to add "kern.smp.disabled=1" in /boot/loader.conf and
it boots Ok with one CPU.

Any ideas?

--Nikolay