Re: MSI interrupts

In article <jwv7c49j540.fsf-monnier+comp.arch@gnu.org>,
Stefan Monnier  <monnier@iro.umontreal.ca> wrote:

Ok.  So let's be crystal clear here: after the event concludes
successfully, a subsequent exception, interrupt, or whatever,
will not magically roll back any of the values set and made
visible system-wide as a result of the successful conclusion of
the atomic event.  Correct?  That's what I've been asking.

>
I don't really understand how that can be a question.  It would
completely invalidate the notion of the chunk of code being executed
*atomically*.
>
If a value has been made visible system-wide, it's like sending an
email: you can't undo that.

Yup, it sure would.  But when Mitch was talking about locks
disappearing, it wasn't clear (to me anyway) that he was talking
about something in the hardware, and not the mutexes I was
trying to build in software; hence why I was asking.

- Dan C.