Thomas,

I have reasonable doubt that the delayed disable feature on linux-2.6.24 for 
handle_simple_irq is broken.

In 2.6.22 there was something like this:

        if (unlikely(!action || (desc->status & IRQ_DISABLED))) {
                if (desc->chip->mask)
                        desc->chip->mask(irq);
...

However in 2.6.24 the "DISABLED" IRQ in case it happens is never going to be 
masked.  

        if (unlikely(!action || (desc->status & IRQ_DISABLED)))
                goto out_unlock;


I see a disabled IRQ being invoked in an endless loop.

-Michael

------------------------------------------------------------------
********* Analog Devices GmbH         [EMAIL PROTECTED]
**  *****                                      Systems Engineering
**     ** Wilhelm-Wagenfeld-Strasse 6       
**  ***** D-80807 Munich                      
********* Germany                          
Registergericht München HRB 40368,  Geschäftsführer:  Thomas Wessel,  Vincent 
Roche,  Joseph E. McDonough 
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to