Re: Scatter-gather dma, XP driver verifier problem -> Solved...

My thanks to Ntdev Reader and the little 300 pound homophone for replies.

Turns out, I was building the scatter-gather list before calling the driver
adapter control function through AllocateAdapterChannel. This meant that
MapRegisterBase was not defined, since this is passed in as a parameter to
the AdapterControl function. So, a NULL MapRegisterBase looks to the
verifier like a desperate need to call FlushAdapterBuffers even before a
transfer happens. Logical, no?

-Evan

I’ve looked through your message once more and realized you put
it there trying to fool the Verifier. I now think you should be
trying to explain why the Verifier said “(0 max)”. It looks very
suspicious.


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