[Info-vax] Possible resolution of MB issue raised by 5.6.4.3 of 3d ed. AARM

[George Cornelius]

In article <ueHtzhyzmj7c at eisner.encompasserve.org>, cornelius at eisner.decus.org (George Cornelius) writes:
> See my comments regarding paragraph {3} for a likely resolution of
> what I saw as a problem raised within this section.

OK, and here is further confirmation via a comment in the IDSM
(sorry - sketchy - from a google search using Lynx), in which it
is declared that a kernel mode AST is queued to the process itself
to perform the final phase of I/O processing.  The driver code,
essentially, via this O/S feature, performs all the synchronization
at the 2nd processor that is required.

   Open VMS Alpha Internals and Data Structures: Scheduling and ...

   The $QIO service clears event flag 10, initiates the I/O request, and
   returns to ...
   The special kernel mode AST associated with the completion of that
   request is ...
   https://books.google.com/books?isbn=1555581560

George