linux-kernel - Re: [PATCH v7 00/27] x86, boot, 64bit: Add support for loading ramdisk and bzImage above 4G

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Message-ID: <CAE9FiQV5QqONiTdnHzsjVRTbnEfyHEE3s=-=+a49F2a5se7K+A@mail.gmail.com>
Date:	Sat, 22 Dec 2012 23:29:11 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 00/27] x86, boot, 64bit: Add support for loading
 ramdisk and bzImage above 4G

On Sat, Dec 22, 2012 at 5:24 AM, Konrad Rzeszutek Wilk
<konrad.wilk@...cle.com> wrote:
>
> Interestingly enough I only see this on any AMD machine - different
> motherboards, different memory configurations.
>
> And also in a HVM guest running on an AMD machine. If it runs on Intel
> it works just fine.

Found the reason,

-v11: change far jmp back to far return to initial_code, that is needed
     to fix failure that is reported by Konard on AMD system.

works well on on AMD 4 sockets that I found.

update the for-x86-boot branch, please check that.
     git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
for-x86-boot

Thanks a lot for the testing on AMD system.

Yinghai
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