* Ingo Molnar <[email protected]> wrote:
> > > -51-06 and -51-08 are looking stable on the UP Athlon box with the
> > > following patch which causes edge triggered hardirqs to be masked when
> > > pending _and/or_ disabled (instead of both pending _and_ disabled) and
> > > backs out a change from -50-44 that prevents pending edge triggered
> > > irqs from being unmasked:
> >
> > ok, you are right, the edge case was mishandled - but i think it was
> > already mishandled upstream, we just never (or rarely) triggered it.
> > I've reworked this area based on your patch, could you check -51-15,
> > does it work for you?
>
> if it doesnt work, could you disable CONFIG_X86_IOAPIC_FAST?
or rather, please try -51-16. One of my testsystems produced weird
interrupt storms, which were caused by the IOAPIC_POSTFLUSH
optimization. In -51-16 i've turned that optimization off, globally.
Maybe this explains some of the other lockups reported.
Ingo
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