Re: [PATCH RFC/RFB] x86_64, i386: interrupt dispatch changes

From: Ingo Molnar
Date: Tue Nov 04 2008 - 11:56:40 EST



* Ingo Molnar <mingo@xxxxxxx> wrote:

> * Alexander van Heukelum <heukelum@xxxxxxxxxxx> wrote:
>
> > > My estimation is that if we do it right, your approach will behave
> > > better on modern CPUs (which is what matters most for such
> > > things), especially on real workloads where there's a considerable
> > > instruction-cache pressure. But it should be measured in any case.
> >
> > Fully agreed. I will do some measurements in the near future, maybe
> > next week. At least noone came up with an absolutely blocking
> > problem with this approach ;).
>
> how about "it does not build with lguest enabled" as a blocking
> problem? ;-)
>
> arch/x86/lguest/built-in.o: In function `lguest_init_IRQ':
> boot.c:(.init.text+0x33f): undefined reference to `interrupt'
>
> config attached.

... other than that it booted fine on a few testboxes here. That's
still not an exhaustive test by any means, but it's promising.

Ingo
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