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SubjectRE: fixed a bug of adma in rhel4u5 with HDS7250SASUN500G.
Date
From
Robert Hancock wrote:
> As I mentioned, this doesn't seem to resolve the problem we're seeing
> with rapidly intermixed NCQ commands and cache flushes (at
> least, if I
> take out the arbitrary 20usec delay from the driver and add
> this patch,
> the problem still shows up). It could be a similar problem,
> though, of
> commands being issued before the controller is really ready
> for them. If
> you or others at NVIDIA could assist in tracking down that problem it
> would be appreciated..
>
Ok , i will track down that problem.
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