From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dave Jones <davej-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk	upon
	panic
Date: Wed, 26 Jan 2011 18:16:21 -0500
Message-ID: <20110126231620.GA14807@redhat.com>
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To: "Luck, Tony" <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Willy Tarreau <wtarreau-Dj75qbTlC0E76Z2rM5mHXA@public.gmane.org>, Dirk Hohndel <hohndel-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, FBDEV-ML <linux-fbdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, IDE-ML <linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Randy Dunlap <rdunlap-/UHa2rfvQTnk1uMJSBkQmQ@public.gmane.org>, James Bottomley <James.Bottomley-l3A5Bk7waGM@public.gmane.org>, "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, X86-ML <x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, "Ahmed S. Darwish" <darwish.07-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Ingo Molnar <mingo-X9Un+BFzKDI@public.gmane.org>, Jeff Garzik <jgarzik-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>, Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Peter Zijlstra <a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>, "Hohndel,
	Dirk" <dirk.hohndel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>, Mark Lord <kernel-R6A+fiHC8nRWk0Htik3J/w@public.gmane.org>, Arjan van de Ven <arjan-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, KEXEC-ML <kexec-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Haren Myneni <hbabu-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>, Eric Biederman <ebi>
List-Id: linux-ide@vger.kernel.org

On Wed, Jan 26, 2011 at 03:07:44PM -0800, Luck, Tony wrote:
 > >- The latest approach (proposed by Linus) is to forget the disk: jump to
 > >  real-mode, but display the kernel log in a fancy format (with scroll
 > >  ups and downs) instead.
 > 
 > A while ago (first Plumbers conference?) someone was talking about
 > using a 2-d barcode to display the tail of the kernel log & oops
 > register data - with the plan that you could capture the image with
 > a cell phone camera, and then get all the oops data without worrying
 > about transcription errors as you wrote down & re-typed all the hex.
 > 
 > Anyone know what happened to that plan?

How is this more useful than a photograph of the backtrace ?

	Dave