Chuck Ebbert wrote:
> I see this on boot with kernels 2.6.22.1 and 2.6.20.15:
> 
>      ata1: D2H reg with I during NCQ, this message won't be printed again
> 
> But I can't find anything that tells me what it means, or whether
> it's a real problem.

That's your firmware transmitting unnecessary D2H Reg FIS during NCQ
command phase.  It's minor protocol violation which can be ignored.  No
need to worry.

-- 
tejun
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