From: Robert Hancock <hancockr@shaw.ca>
To: Timur Alperovich <timur.alperovich@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: APIC error 80(80) and 00(80)
Date: Wed, 30 Apr 2008 20:25:28 -0600 [thread overview]
Message-ID: <48192A18.2080502@shaw.ca> (raw)
In-Reply-To: <fa.eZiCdv20DPnWq2lstvMQhP+yqtg@ifi.uio.no>
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.
next parent reply other threads:[~2008-05-01 2:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.eZiCdv20DPnWq2lstvMQhP+yqtg@ifi.uio.no>
2008-05-01 2:25 ` Robert Hancock [this message]
2008-04-30 17:18 APIC error 80(80) and 00(80) Timur Alperovich
2008-04-30 18:05 ` Maciej W. Rozycki
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