I remember running OS/VS1 under VM/SP. I seem to remember that we had to install an earlier VM, then add the "SP" feature on top of that.
OS/VS1 did run pretty good under VM. I remember coding diagnose instructions in JES exits to spool and tag output for RSCS. I also remember the "pseudo page fault" trick. I think VM returned that to OS/VS1 when he needed to fetch a page, OS/VS1 would dispatch another task while VM fetched the faulted page. I also remember a bug where VS1 storage was changed between instructions being a fun one to trace and capture, but I don't remember the cause. Len Rugen Metrics and Automation - [email protected] ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
