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

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Message-ID: <CAE9FiQUyj65jB4bPkJQHGRZEkhOry736g362-m145vNYRRSdAQ@mail.gmail.com>
Date:	Sun, 16 Dec 2012 09:45:38 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Bernd Schubert <bernd.schubert@...m.fraunhofer.de>
Cc:	Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [regression] 3.7 ends in APIC panic

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?

can you post your .config for v3.7 ?

wonder if you have x2apic in .config

Thanks

Yinghai
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