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Date: Mon, 11 Aug 2014 12:42:24 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
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To: Fengguang Wu <fengguang.wu@intel.com>
cc: LKML <linux-kernel@vger.kernel.org>, "lkp@01.org" <lkp@01.org>
Subject: Re: [percpu] BUG: unable to handle kernel paging request at
 000000000000de40
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On Mon, 11 Aug 2014, Fengguang Wu wrote:

> This kernel oops happens on a Nehalem-EX machine and is related to
> some commit in the percpu branch(*). I'm not able to bisect it down
> because the machine failed to reboot itself on this oops..

Ok I pushed a fix into the percpu branch. The build should have shown an
issue of a pointer mismatch in __x2apic_send_IPI_mask.