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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.25-0
Ingo Molnar wrote:

>* Ingo Molnar <mingo@elte.hu> wrote:
>
>
>
>>just in case you are using UP-IOAPIC, could you enable CONFIG_SMP
>>(even if you are running an UP box) and see whether the lockup goes
>>away? Which was the last -RT kernel that you tried that didnt lock up
>>in this fashion?
>>
>>
>
>if with CONFIG_SMP it's more stable, could you try the following: turn
>off CONFIG_SMP again and edit arch/i386/kernel/io_apic.c and remove this
>string:
>
> && defined(CONFIG_SMP)
>
>(there should be only one occurence of this string.)
>
>this will turn the previous IO-APIC logic (used in -V0.7.24) back on.
>
> Ingo
>
>
>
It locked up after 20 minutes with CONFIG_SMP enabled.
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