Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1751284AbdFAHt2 (ORCPT <rfc822;w@1wt.eu>);
        Thu, 1 Jun 2017 03:49:28 -0400
Received: from mail-yw0-f195.google.com ([209.85.161.195]:36437 "EHLO
        mail-yw0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751001AbdFAHt0 (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Thu, 1 Jun 2017 03:49:26 -0400
MIME-Version: 1.0
In-Reply-To: <003501d2d9a8$4ee48d20$ecada760$@net>
References: <003501d2d9a8$4ee48d20$ecada760$@net>
From: Ian W MORRISON <ianwmorrison@gmail.com>
Date: Thu, 1 Jun 2017 17:49:25 +1000
Message-ID: <CAFXWsS-1zkE8Q0BX06g5LYwPqGR+gQbR9D6=EO2r_B1-nn-HeQ@mail.gmail.com>
Subject: Re: [tip:x86/urgent] x86/PAT: Fix Xorg regression on CPUs that don't
 support PAT
To: Doug Smythies <dsmythies@telus.net>
Cc: Bernhard Held <berny156@gmx.de>, Mikulas Patocka <mpatocka@redhat.com>,
        Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@kernel.org>,
        linux-kernel@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 932
Lines: 26

On 31 May 2017 at 10:53, Doug Smythies <dsmythies@telus.net> wrote:
> Note Before:
> I might not have the address list correct, as I have re-created this
> e-mail from the web page archive, having found the thread after bisecting the
> kernel.
>
> On 2017.05.29 18:50:57 -0400 (EDT) Mikulas Patocka wrote:
>> On Sun, 28 May 2017, Andy Lutomirski wrote:
>>> On Sun, May 28, 2017 at 11:18 AM, Bernhard Held <berny156@gmx.de> wrote:
>>>> Hi,
>>>>
>>>> this patch breaks the boot of my kernel. The last message is "Booting
>>>> the kernel.".
>
> It breaks my kernel boot also, and I know of at least two others with
> the same, or similar, problem as of kernel 4.12-rc3.
>

Just to add that I cannot boot v4.12-rc3 kernel with any Intel Atom
(BYT and CHT) Intel Compute Sticks. Adding 'earlyprintk=efi' confirms
kernel panic with
[ 0.000000] Kernel panic - not syncing: x86/PAT: PAT enabled, but not
supported by secondary CPU


<snip>