kern/60699: [atapicam] DVD Multidrive udma mode autosensed wrong

Mark Linimon linimon at
Wed Mar 5 06:30:04 UTC 2008

The following reply was made to PR kern/60699; it has been noted by GNATS.

From: linimon at (Mark Linimon)
To: bug-followup at
Subject: Re: kern/60699: [atapicam] DVD Multidrive udma mode autosensed wrong
Date: Wed, 5 Mar 2008 00:28:07 -0600

 ----- Forwarded message from Jason Bacon <bacon at> -----
 Almost eerie that you should mention it now.  I was just thinking of 
 revisiting this PO yesterday.  I'm in the process of upgrading all my 
 older FreeBSD boxes to 6.3-RELEASE, and yes, I'm still seeing the same 
 As a workaround, I'm adding the following to 
 /usr/local/etc/rc.d/ on all my systems:
 atacontrol mode acd0 wdma2
 atacontrol mode acd1 wdma2
 Fortunately, the newer atacontrol lets you address specific device names 
 instead of channels, so I just set all my CD/DVD drives to wdma2 by 
 default.  So far, this hasn't caused any problems.
 ----- End forwarded message -----

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