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From: Gianni <gdoe6545@yahoo.it>
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Cc: Jeremy Chadwick <koitsu@freebsd.org>
Subject: Re: ad0 READ_DMA TIMEOUT errors on install of 7.0-RELEASE
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On 22/mar/08, at 04:52, Jeremy Chadwick wrote:
> On Fri, Mar 21, 2008 at 06:27:19PM +0100, Gianni Doe wrote:
>> I'm also experiencing this issue after upgrading to 7.0-RELEASE  
>> from 6.3
> The most I can provide is here:
> http://wiki.freebsd.org/JeremyChadwick/Commonly_reported_issues

> Workaround: Set hw.ata.ata_dma=0 in /boot/loader.conf. This will  
> disable use of DMA in the ATA/SATA subsystem;

I'm afraid the workaround doesn't work for me, I set  
hw.ata.ata_dma="0" in loader.conf and the problem still occurs.
Just to double-check...
# sysctl hw.ata.ata_dma
hw.ata.ata_dma: 0

-Gianni