linux-kernel - Re: [regression] 3.7 ends in APIC panic

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Message-ID: <50CE0C82.20708@itwm.fraunhofer.de>
Date:	Sun, 16 Dec 2012 19:01:38 +0100
From:	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [regression] 3.7 ends in APIC panic

On 12/16/2012 06:45 PM, Yinghai Lu wrote:
> On Sun, Dec 16, 2012 at 9:43 AM, Yinghai Lu <yinghai@...nel.org> wrote:
>> On Fri, Dec 14, 2012 at 6:58 AM, Bernd Schubert
>> <bernd.schubert@...m.fraunhofer.de> wrote:
>>> On 12/13/2012 01:16 PM, Bernd Schubert wrote:
>>>>
>>>> Hello,
>>>>
>>>> I just tried to boot 3.7 and it ends in an APIC panic. I tried to use
>>>> the recommended "apic=debug", but that does not change anything in the
>>>> output, at least not in the visible part. The last known kernel to boot
>>>> was 3.5. If it matters I can try to boot 3.6.
>>>
>>>
>>> So linux-3.6 also boots. Any idea what is going on or do I really need to
>>> bisect?
>>
>> interesting, your system have
>>
>> x2apic enabled by BIOS, switching to x2apic ops
>>
>> so can you try to append "nox2apic" to command line with v3.7, to see
>> if we can get dmesg there?

Thanks for looking into it! Will try tomorrow when I have physical access.

> 
> can you post your .config for v3.7 ?
> 
> wonder if you have x2apic in .config

Which setting is it? Config is attached.


Thanks,
Bernd

View attachment "config" of type "text/plain" (134309 bytes)