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Date: Fri, 23 May 2003 17:19:54 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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Subject: Re: ad0: READ command timeout....
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Thomas Nystrom wrote:
[ ... ]
> The message I see on the console is:
>   ad1: READ command timeout tag=0 serv=0 - resetting
>   ata0: resetting devices....
> 
> and the machines hangs there with the disk indicator LED turned on but
> without any disc activity.

Ditto.  Problem seemed to appear sometime after 4.7p10.

-Chuck