On Mon, Oct 17, 2011 at 9:27 AM, Chris Craddock <crashlu...@gmail.com> wrote:
> On Sun, Oct 16, 2011 at 4:53 PM, Micheal Butz 
> <michealb...@optonline.net>wrote:
>
>> The normal sequence then is common when scheduling to a different address
>> space
>
>
>
> just think about it for a minute. There is no magic. Put yourself in the
> SRB's place. In order for it to run, the code has to be addressable in the
> primary address space where it is initially dispatched. Nothing else
> matters. From the scheduling application's point of view you just have to
> make sure the SRB code is in the "right" place and will remain there until
> after the SRB completes.
>
> If you are going to schedule an SRB into your current primary address space,
> then it doesn't matter whether the SRB code is in common or in private, it
> just has to be there when the SRB is dispatched. That is actually an
> extremely common scenario, e.g. an SRB being scheduled out of disabled code
> (typically an interrupt handler) to complete processing for whatever was
> going on.
>
> On the other hand; If you are trying to schedule an SRB into -any-other-
> address space, then (somehow) you have to make sure the code will be
> addressable when the SRB is dispatched. In general that means loading it
> into common storage (technically it should be in SQA rather than CSA, but
> that's a minor nit)

I'm curious on the technical distinction between putting the SRB code
in SQA versus CSA.

Can you elaborate?
>
>
>
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