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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 30 Apr 2008 20:25:28 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Timur Alperovich <timur.alperovich@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 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.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/