linux-kernel - APIC error 80(80) and 00(80)

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Date:	Wed, 30 Apr 2008 13:18:02 -0400
From:	"Timur Alperovich" <timur.alperovich@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: APIC error 80(80) and 00(80)

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?

Thank you,
Timur
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