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Date: Tue, 25 Jan 2011 19:26:16 -0500
From: Jeff Garzik <jgarzik@pobox.com>
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To: "H. Peter Anvin" <hpa@zytor.com>
CC: Randy Dunlap <rdunlap@xenotime.net>, Mark Lord <kernel@teksavvy.com>,
        "Ahmed S. Darwish" <darwish.07@gmail.com>,
        James Bottomley <James.Bottomley@suse.de>, Tejun Heo <tj@kernel.org>,
        Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, X86-ML <x86@kernel.org>,
        Tony Luck <tony.luck@intel.com>, Dave Jones <davej@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Willy Tarreau <wtarreau@hera.kernel.org>, Willy Tarreau <w@1wt.eu>,
        Dirk Hohndel <hohndel@infradead.org>, Dirk.Hohndel@intel.com,
        IDE-ML <linux-ide@vger.kernel.org>,
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        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        =?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?= <fweisbec@gmail.com>,
        Borislav Petkov <bp@alien8.de>, Arjan van de Ven <arjan@infradead.org>,
        Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH 0/2][concept RFC] x86: BIOS-save kernel log to disk upon
 panic
References: <20110125134748.GA10051@laptop> <20110125140948.GA26762@elte.hu> <20110125153649.GA11386@laptop> <1295971355.4955.104.camel@mulgrave.site> <20110125170522.GA16285@laptop> <4D3F4A69.7090702@teksavvy.com> <20110125141605.43963105.rdunlap@xenotime.net> <4D3F529D.8060406@pobox.com> <4D3F559C.1050809@zytor.com>
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On 01/25/2011 05:58 PM, H. Peter Anvin wrote:
> "Not perfect" is really not good enough.  You're writing to the disk, so
> it *has* to be perfect.  That means dealing with having shared IDE/AHCI
> device and doing the right thing, and the possibility that the kernel
> has interrupts enabled, yadda yadda.
>
> In the end you end up with something that looks, again, like kexec/kdump.

Oh, quite agreed.  It wasn't an endorsement, just a reference :)

	Jeff