Re: Ingo's realtime_preempt patch causes kernel oops

Sven-Thorsten Dietrich
2006-05-24T15:32:46Z

On Wed, 2006-05-24 at 15:13 +0200, Thomas Gleixner wrote:
> On Wed, 2006-05-24 at 08:55 -0400, Steven Rostedt wrote:
> > Thomas or Ingo,
> >
> > Maybe the handling of IRQs needs to handle the case that shared irq can
> > have both a NODELAY and a thread. The irq descriptor could have a
> > NODELAY set if any of the actions are NODELAY, but before calling the
> > interrupt handler (in interrupt context), check if the action is NODELAY
> > or not, and if not, wake up the thread if not done so already.
>
> As I said yesterday. You need a demultiplexer for such cases.
>

Would IRQs stay masked until the thread has finished running?

Sven