Please see inline. Plz correct me if I am wrong.

On Wed, Oct 27, 2010 at 10:26 AM, Mulyadi Santosa <[email protected]
> wrote:

> On Wed, Oct 27, 2010 at 11:39, Prabhu nath <[email protected]> wrote:
> > Thanks a lot for the clarification.
> > Is that not a big hole that the kernel provides ?.
>
> Naively...you can say so...but AFAIK it serves for some (legacy) purpose:
> - Wine...or DOSEMU..or dosbox...can't recall which one that used it once...
>
> - X server/ X org...once use it too...
>

    X server/X org uses the device memory to write frame data and if it
wants system memory, it can legally ask kernel thru malloc/calloc.
 IMHO, I feel mem could have been restricted to device addresses rather than
memory address. Though at this point I do not know whether it servers any
bigger purpose.

Thanks,
Prabhu


>
>
> --
> regards,
>
> Mulyadi Santosa
> Freelance Linux trainer and consultant
>
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com
>

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