11.0-CURRENT panic at (allegedly) a dpms signal (monitor off), in drm2

[Markiyan Kushnir]

14:00:~$ uname -a
FreeBSD mkushnir.mooo.com 11.0-CURRENT FreeBSD 11.0-CURRENT #1
r259227: Thu Dec 12 10:17:56 EET 2013
root at mkushnir.mooo.com:/usr/obj/usr/src/sys/MAREK  amd64

Left my desktop (new Xorg, newcons, radeonkms) for a couple of minutes
and found it rebooted after a panic. Never seen this kind of panic
before.

Please find links to core.txt, pciconf and devinfo:

https://drive.google.com/file/d/0B9Q-zpUXxqCnWXNINDYwNTZ6d2M/edit?usp=sharing
https://drive.google.com/file/d/0B9Q-zpUXxqCndEl6TDVwYmV0bDA/edit?usp=sharing
https://drive.google.com/file/d/0B9Q-zpUXxqCndlhmTk92V3RkWlk/edit?usp=sharing

--
Markiyan.