Re: [2.5.50] Keyboard dying

[James Simmons]

> > >        After some X <-> back switches keyboard stops doing anything.
> > >        2.5.50 + preempt enabled, X 4.2.1-debian-unstable.
> > >
> > > showkey started using gpm tells that the keys actually are pressed and
> > > processed by the kernel.
> > > Although even alt+sysrq+whatever do not make any effect.
> > 
> > Can you disable preempt and see if you have the same problem.
> 
>   After some days of testing all seems fine. So preempt must be the trigger.

The VT console system is totally not preempt safe. Everything is global. 
I finished most of the work to make a preempt safe VT console system but 
that will not go in this developement cycle.