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List:       dragonfly-kernel
Subject:    Re: Kernel Dump when accessing second drive
From:       Dylan Reinhold <dylan () ocnetworking ! com>
Date:       2010-05-23 19:19:24
Message-ID: 4BF97FBC.3020708 () ocnetworking ! com
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On 05/23/2010 09:26 AM, Matthew Dillon wrote:
> :It still crashed, but I'm not sure it is taking the command.
> :
> :# natacontrol mode ad6 PIO4
> :current mode = SATA150
> :
> :Is that correct for it to still report SATA150?
> :
> :Thanks,
> :Dylan
>
>      The UDMA/PIO stuff might not be adjustable if its a SATA controller
>      emulating an IDE controller.
>
>      I think what is happening here is the NATA driver is detaching the
>      drive and destroying the related dev structures before it finishes
>      cleaning out any pending I/O's, so then when it tries to ad_done()
>      the request it winds up blowing through dead structures.
>
>      There must be some error messages reported in the console output
>      that we haven't seen yet.  You can try:
>
>      dmesg -N kern.0 -M vmcore.0
>
>      And see if any other messages above the 'ad6: FAILURE' message are
>      present.
>
> 					-Matt
> 					Matthew Dillon
> 					<dillon@backplane.com>
>
>    
Here is the complete dmesg from the last crash
http://leaf.dragonflybsd.org/~dylan/dmesg.18.txt

Thanks,
Dylan

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