linux-kernel - Re: Latest tip kernel(3.2-rc1-tip_cf6b3899) fails to boot on x3850x5 machine

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


* Yinghai Lu <yinghai@...nel.org> wrote:

> On Wed, Dec 14, 2011 at 6:24 PM, Nikunj A Dadhania
> <nikunj@...ux.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
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