On Tue, 24 Jul 2012 10:51:33 -0500, McKown, John <[email protected]> wrote:
>Also, remember that we are talking about TSO. An archaic piece of software, >which IBM has just seeming lost interest in. Imagine what could >be done if the non-APF user code ran in a subspace, like CICS uses. Subspaces (as currently architected by the hardware) would not help if your goal is system integrity, John. Even in CICS subspace mode only helps protect against -accidental- storage overlays. While you can start some code running in a subspace, nothing stops it from switching out of subspace mode, at which time it has full access to the entire address space. -- Walt ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
