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Date: Fri, 14 Apr 2006 11:05:02 +0100
From: Alex Zbyslaw <xfb52@dial.pipex.com>
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To: Anish Mistry <mistry.7@osu.edu>
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Cc: freebsd-questions@freebsd.org
Subject: Re: DMA TIMEOUT
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Anish Mistry wrote:

>On Thursday 13 April 2006 07:47, Wil Hatfield wrote:
>  
>
>>>I had a similar situation under 6.0. My secondary drive would
>>>throw DMA read
>>>errors at bootup, adding several minutes to the boot process, so
>>>I ran it in
>>>PIO mode. The upgrade to 6.1 solved it, both drives work fine as
>>>DMA now.
>>>      
>>>
>>Looks like the DMA errors are back in 6.1-RC with ATA or at least
>>similar DMA errors. The new one froze my machine with an error like
>>"Error while performing DMA_WRITE command". A new twist to the
>>WRITE_DMA Timeouts of 5.4. I am starting to think that they aren't
>>going to get the ATA issues all worked out anytime soon so they are
>>changing the errors. ;-)
>>
>>And of course no automatic reboot on panic.
>>    
>>
>Do you have a backtrace?
>
>  
>
Will such a backtrace actually help resolve the no reboot problem?  Or 
will it just provide information about the panic?

--Alex