On Tuesday, February 11, 2014 8:50:43 am Aleksandr Rybalko wrote:
> Hi Adrian!
> On Mon, 10 Feb 2014 13:24:18 -0800
> Adrian Chadd <adr...@freebsd.org> wrote:
> > [snip]
> > My experiences with newcons/drm2:
> > * suspend/resume occasionally throws up a panic in the softclock code,
> > with some vaguely invalid looking newcons timer entry. THis happens
> > after it comes out of suspend, after af ew seconds. It sucks and makes
> > things rather unusable.
> Are you have some data to investigate who is culprit?
> You can try also kernel with syscons, of course console will be black
> after kms load, but you still able to input commands.
I had this for the first time yesterday. It is the timer used for vt
switching. c_lock inside the callout structure for ttyv0 is trashed and
points to NULL instead of &Giant. Adrian, you should try setting
kern.vt.suspendswitch=0 to see if that helps.
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