Hard system lockups with 10.1, probably drm/newcons/radeonkms-related

[Pete French]

> Subject: Hard system lockups with 10.1, probably drm/newcons/radeonkms-related
>
>
> Hi folks,
>
> With 10.1-RELEASE, I've enabled newcons at boot with
>   kern.vty="vt"
> in loader.conf.  With the latest Xorg/drm installed with pkg, I'm
> seeing intermittent hangs and hard lockups of the system.  I've
> included the logs for one which recovered earlier today, but later
> on it just locked up completely and I don't have logs for that
> since I had to do a hard reset.  I had to install and enable
> hal+dbus to get a working keyboard and mouse when running X,
> despite both working fine on the console!

Interesting, as I was about to write something very similar about
latest xorg under 9.3-STABLE. I have been seeing the same,
hangs and hard lockups. I thought it was the card so I replaced it, but
the result is the same.

I am also using the new console, and I am also using Radeons.

This is definetly video related - it never happens using the system
remotely, and sometimes it is just the graphics which locks up (I
can ssh in and shutdown). Occasionally, the lockup clears itself and
the graphics comes back.

Very puzzling - it can go for days without a lokcup, then sometimes
I will gte several in the space of an afternoon.

-pete.