[Info-vax] C... the only winning move is not to play...

[JF Mezei]

On 14-02-13 13:50, VAXman- @SendSpamHere.ORG wrote:

> I'm not going to disclose here how I get the "before image" but I assure you
> it's not stale data in the user's buffers.

I would be shocked if Mr VAXman dared lower himself to user mode to
access a user buffer. He is far more likely to wedge himself between the
XQP and RMS to capture those buffers :-)

If 2 processes access the same RMS indexed file at same time, is it RMS
that does the cache validatioN/updates when one process modifies
something that is also contained in the other process' cache ? Or is
that does at XQP level ?

What happens when the 2 processes are on different nodes of a cluster ?
Are are caches invalidated and at what level ?