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From: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>, linux-kernel@vger.kernel.org
Subject: Re: [regression] 3.7 ends in APIC panic
Date: Sun, 16 Dec 2012 19:28:59 +0100	[thread overview]
Message-ID: <50CE12EB.1050804@itwm.fraunhofer.de> (raw)
In-Reply-To: <CAE9FiQUJ-TZCCOki3XfMOgOvOL=TiApJGQdHcHNAPmYKRtVk6A@mail.gmail.com>

On 12/16/2012 07:07 PM, Yinghai Lu wrote:
> On Sun, Dec 16, 2012 at 10:01 AM, Bernd Schubert
> <bernd.schubert@itwm.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.

Thanks! CONFIG_X86_X2APIC depends on
CONFIG_IRQ_REMAP, which I disabled as it is marked as experimental and
as this is my desktop system. So CONFIG_X86_X2APIC also got unset
automatically.

Will test a new kernel build in the morning.


Thanks,
Bernd

  reply	other threads:[~2012-12-16 18:29 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-14 14:58 [regression] 3.7 ends in APIC panic Bernd Schubert
2012-12-16 11:35 ` Ingo Molnar
2012-12-16 15:33   ` Bernd Schubert
2012-12-16 17:43 ` Yinghai Lu
2012-12-16 17:45   ` Yinghai Lu
2012-12-16 18:01     ` Bernd Schubert
2012-12-16 18:07       ` Yinghai Lu
2012-12-16 18:28         ` Bernd Schubert [this message]
2012-12-16 19:13           ` Borislav Petkov
2012-12-16 19:46             ` Bernd Schubert
2012-12-16 20:39               ` Borislav Petkov
2012-12-17  9:34                 ` Bernd Schubert
2012-12-17 10:00                   ` Borislav Petkov
2012-12-17 13:11                     ` Bernd Schubert
2012-12-17  9:27         ` Bernd Schubert
2012-12-17 14:02           ` Ingo Molnar
2012-12-17 16:53             ` Yinghai Lu
2012-12-17 16:56               ` H. Peter Anvin
2012-12-17 17:03                 ` Yinghai Lu
  -- strict thread matches above, loose matches on Subject: below --
2012-12-13 12:16 Bernd Schubert

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