Messages in this thread | | | Date | Fri, 8 Jul 2005 11:45:31 +0200 | From | Ingo Molnar <> | Subject | Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.51-08 |
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* Ingo Molnar <mingo@elte.hu> 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.
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