[linux-audio-user] -rt IRQ handler priorities

[Wolfgang Hoffmann]

On Wednesday 10 May 2006 12:49, Lee Revell wrote:
> On Wed, 2006-05-10 at 08:25 +0200, Thomas Gleixner wrote:
> > On Wed, 2006-05-10 at 02:15 -0400, Steven Rostedt wrote:
> > > I've CC'd Thomas Gleixner.  I beleive that the hrtimers code now uses
> > > priorities.  That is, when a timer is to go off, the hrtimer softirq
> > > inherits the priority of the task that created the timer.  Thomas,
> > > correct me if I'm wrong.  But I also believe this code is a work in
> > > progress, and the more feedback of what people want/need the better we
> > > can make the code do just that.
> > >
> > > Is the high res timers turned on?
> >
> > 
http://www.linutronix.de/index.php?module=News&id=cntnt01&cntnt01action=detail&cntnt01articleid=8&cntnt01dateformat=%b%20%d,
%20%Y&cntnt01returnid=31
> >
> > This is only true, when high resolution timers are enabled.
>
> Is there any solution for the !CONFIG_HIGH_RES_TIMERS case?  I for one
> can't use it because my hardware doesn't support it (no local APIC).

Thanks for forwarding the link, Lee. That's helpful information.

Thomas, does this dynamic priority support work when running softirq-timer/0 
at SCHED_OTHER? I tried, and it seems to work here, I just want to make sure 
it's valid to do so.

Wolfgang