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From: "James R. Van Artsalen" <james@jrv.org>
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To: Peter Losher <Peter_Losher@isc.org>
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cc: Vinod Kashyap <vkashyap@amcc.com>
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Subject: 
	Re: [freebsd-amd64] Possible 3ware 8506-12 SATA Controller issues...
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Peter Losher wrote:

>>You might want to upgrade to twe in -CURRENT, and see if that
>>makes a difference.
>>    
>>
>
>Tried compiling a 5.2.1 kernel w/ the twe driver plopped from -CURRENT 
>cvsup'ed 30 minutes ago, and it didn't go to well:
>  
>

5.2.1-release w/8506-8 seems to work for me on AMD64 with 8 GB of RAM in 
a Tyan S2885 with two Opteron 248 CPUs in a slot jumpered to 64/66 PCI 
rather than PCI-X.

I'm not trying to use any twe-specific monitoring tools and haven't 
tested to see if the twe driver notices disk errors.

I believe that the driver does not handle more than 4 GB of RAM and 
requires bounce-buffers.

Testing consisted of running "make buildworld" in a loop with a kernel 
building in a loop at the same; see if it's still running after a week 
and fsck is clean.