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Date: Tue, 25 Jan 2011 14:04:15 -0500
From: Jeff Garzik <jeff@garzik.org>
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To: Tony Luck <tony.luck@intel.com>
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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> <AANLkTikHe8Bq1f-nv8hiAeY7rs7t5MWTvEUSYT81py4S@mail.gmail.com>
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On 01/25/2011 12:32 PM, Tony Luck wrote:
> One more "is this bit of the BIOS code safe" concern that I have is that
> you'll be using the "write" path of the INT 0x13 code ... which isn't the
> path that is tested by booting ... it *ought* to be OK - but untested paths
> in BIOS seem to be broken paths all too often.


Not really...  as others have noted, we reprogram the controller in a 
different mode, once the kernel starts.

	Jeff