Re: [RFC][PATCH -rt] irqd starvation on SMP by a single process?

[Steven Rostedt]

On Fri, 12 May 2006, Mark Hounschell wrote:

> >
> > Mark, does this fix the problem?
> >
> > 	Ingo
> >
> > Index: linux-rt.q/drivers/net/3c59x.c
> > ===================================================================
> > --- linux-rt.q.orig/drivers/net/3c59x.c
> > +++ linux-rt.q/drivers/net/3c59x.c
> > @@ -1897,7 +1897,8 @@ vortex_timer(unsigned long data)
> >
> >  	if (vp->medialock)
> >  		goto leave_media_alone;
> > -	disable_irq(dev->irq);
> > +	/* hack! */
> > +	disable_irq_nosync(dev->irq);
> >  	old_window = ioread16(ioaddr + EL3_CMD) >> 13;
> >  	EL3WINDOW(4);
> >  	media_status = ioread16(ioaddr + Wn4_Media);
> >
>
> Yes it does.
>


It fixes it for both "complete preemption" and "normal preemption"?

-- Steve

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/