Re: irq 7: nobody cared! (intel8x0 sound / 2.6.2-rc3-mm1)

[Linus Torvalds]

On Tue, 10 Feb 2004, Ralf Gerbig wrote:
> 
> * On Tue, 10 Feb 2004 20:05:35 +0100, Takashi Iwai <tiwai@xxxxxxx> said:
> 
> > --- linux/sound/pci/intel8x0.c	6 Feb 2004 17:47:49 -0000	1.115
> > +++ linux/sound/pci/intel8x0.c	10 Feb 2004 19:03:43 -0000
> > @@ -807,7 +807,7 @@
> >  		if (status)
> >  			iputdword(chip, chip->int_sta_reg, status);
> >  		spin_unlock(&chip->reg_lock);
> > -		return IRQ_NONE;
> > +		return IRQ_HANDLED(status);
> 
> did not compile, tried 
> 
>                 return IRQ_RETVAL(status);
> 
> instead. Works, but I get 150,000 interrupts/s even without playing any
> sound.

Can you add something like

	static int count = 10;
	if (count) {
		count--;
		printk("sound status = %08x (mask %08x)\n", 
			status, chip->int_sta_mask);
	}

to just before the return?

That should tell what the register contents are, and might be a clue
about what event it thinks is active.

		Linus
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