On Mon, 2009-01-12 at 15:36 -0800, Eric W. Biederman wrote: > This hardware behavior is not specific to boot interrupts or Intel. It's not specific to Intel, but it is a specific compatibility behavior. > Is this case really so interesting and compelling that we want to fight > through and figure what we need to do to make this work reliably on every > x86 chipset? How else do you propose implementing IRQ handling in e.g. the RT kernel? We get a hardware interrupt, we can't FastEOI, we can't process synchronously, we can't do all of those things you might expect. Implementing RT requires that we delay handling of the IRQ until arbitrarily later in the future when we get around to it. Jon. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html