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

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Message-ID: <50CEE586.10800@itwm.fraunhofer.de>
Date:	Mon, 17 Dec 2012 10:27:34 +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 07:07 PM, Yinghai Lu wrote:
> On Sun, Dec 16, 2012 at 10:01 AM, Bernd Schubert
> <bernd.schubert@...m.fraunhofer.de> wrote:
>>> can you post your .config for v3.7 ?
>>>
>>> wonder if you have x2apic in .config
>>
>> Which setting is it? Config is attached.
>
> your config does not have
>
> CONFIG_X86_X2APIC=y
>
> set.
>
> please enable that.
>
> your BIOS pre-enable x2apic somehow, so you must have x2apic enabled in kernel.
>
> it x2apic really can not be re-enabled by kernel, kernel would disable
> x2apic automatically.

The system boots fine with x2apic enabled.


Thanks a bunch for your help,
Bernd

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