From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Lord <liml@rtr.ca>
Subject: Re: libata-eh/pmp command sequence on NCQ media error
Date: Wed, 30 Apr 2008 22:48:00 -0400
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To: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>, IDE/ATA development list <linux-ide@vger.kernel.org>

Tejun Heo wrote:
> Mark Lord wrote:
>>> So why are we taking a hammer to things there?
> 
> Hmmm... The reset action might be too heavy handed but maybe keeping 
> that categorized as ATA bus error is still a good idea so that multiple 
> errors w/ that bit set can trigger speed down.
..

Like a lot of those bits, I suppose we need to do the old telco tricks
of keeping a rolling average versus time.  Too many counts of them
in too short a period triggers remedial action, otherwise they're tolerated.

??