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Message-ID: <46EA7A2D.90700@pvv.org>
Date: Fri, 14 Sep 2007 14:10:21 +0200
From: Jon Ivar Rykkelid <jonry@....org>
To: Robert Hancock <hancockr@...w.ca>
Cc: Jeff Garzik <jeff@...zik.org>, Tejun Heo <htejun@...il.com>,
linux-kernel@...r.kernel.org
Subject: Re: sata_nv issues with MCP51 SATA controller
Hi,
To eliminate the possibility of this being a hardware issue, I have now
acquired another "Gigabyte GA-N650SLI-DS4" motherboard (with the "MCP51"
chipset) for testing. I'll swap parts this evening. Hopefully I'll be
able to tell you in a few hours whether this appears to be working as it
should. The motherboard that I'm going to swap to has actually been
tested (with MS Windows OS+driver) for more than a day with a disk
connected, so if this MB also fails, I think it will be safe to say that
the issue is with the sata_nv driver... So hang on.
(You can't think of something else that could conflict with the sata_nv
driver after a bit of time, like two of my raid-disks being encrypted,
me running a SW raid-5 array / some special HW (quad-core CPU) / me
running vmware on this server ... ? - To me, all these suggestions seems
rather far fetched, especially as all is working with another
controller, so I'm arguing that unless there's a HW issue, the issue is
with the driver, but you're the expert(s), so let me know if you differ.)
I'll keep you posted as to the result of swapping HW.. Give me a few
hours. :-)
BR
Jon Ivar
Robert Hancock wrote:
> Jeff Garzik wrote:
>> Jon Ivar Rykkelid wrote:
>>> Hi,
>>>
>>> I now tested with the adma=0 option, but if anything I got a crash
>>> quicker than before. Same error message started coming in, but this
>>> time the system hung before I was able to capture the log as well
>>> (but I saw the error, and it was the same as before, except that
>>> this time it was the ata3-channel that first started acting up..) -
>>> To remind you all what this is about, I have reattached the log that
>>> I originally captured...
>>
>> Sounds like a hardware problem, since disabling ADMA is generally the
>> cure-all we use -- it appears to stress the hardware less.
>
> If this is an MCP51 chipset, adma=0 will make no difference since that
> chipset does not support ADMA in the first place.
>
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