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Date: Thu, 15 Dec 2011 08:19:01 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Suresh Siddha <suresh.b.siddha@intel.com>,
        Joerg Roedel <joerg.roedel@amd.com>
Subject: Re: Latest tip kernel(3.2-rc1-tip_cf6b3899) fails to boot on x3850x5
 machine
Message-ID: <20111215071901.GF14237@elte.hu>
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* Yinghai Lu <yinghai@kernel.org> wrote:

> On Wed, Dec 14, 2011 at 6:24 PM, Nikunj A Dadhania
> <nikunj@linux.vnet.ibm.com> wrote:
> >>
> >> BIOS pre-enabled x2apic, and kernel config does not have x2apic enabled?
> > make oldconfig somehow skipped this!! I can see my previous kernel config
> > having this enabled.
> 
> looks like recent dmar table related DMAR changing cause that.

Which one would that be? Perhaps:

      iommu: Rename the DMAR and INTR_REMAP config options

? They then need to be fixed if it can be done sanely.

Thanks,

	Ingo