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From: Keith Owens <kaos@ocs.com.au>
To: strosake@austin.ibm.com
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arch-specific callout in panic() 
In-reply-to: Your message of "Mon, 23 Feb 2004 12:33:09 MDT."
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Date: Tue, 24 Feb 2004 15:25:30 +1100
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On Mon, 23 Feb 2004 12:33:09 -0600, 
Mike Strosaker <strosake@austin.ibm.com> wrote:
>Andrew Morton wrote:
>> We have the panic_notifier_list in there.  Cannot you hook into that?
>
>panic_notifier_list is not used becasue we need to ensure that the
>actions in machine_panic are the last ones taken.

panic_notifier_list, like all entries defined via
notifier_chain_register, is run in priority order, with LIFO order
within priority.  Register machine_panic first with priority INT_MIN
and it gets called last.

Which reduces your problem to "which one of the 57 initcall levels do I
use for registering machine_panic first on the panic_notifier_list"?