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SubjectRe: APIC error 80(80) and 00(80)
Timur Alperovich wrote:
> Hi,
>
> I apologize if others have asked this question before, but I'm a bit
> confused by the APIC error messages, i.e. I couldn't find what they
> mean. After inserting a kernel module I wrote and trying to read the
> device it created, I see the following in dmesg:
>
> Losing some ticks... checking if CPU frequency changed.
> warning: many lost ticks.
> Your time source seems to be instable or some driver is hogging interupts
> rip tg3_read32+0x9/0xa [tg3]
> Falling back to HPET
> APIC error on CPU3: 00(80)
> APIC error on CPU3: 80(80)
>
> where the last message was repeated 1600 times. Could anyone tell me
> what it means or of a better place to ask about it?

Not sure exactly what that means, but sounds like something really wonky
happened.. I'd suspect your code somehow got stuck in a loop with
interrupts off on one CPU, or corrupted memory, or something.


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