Gil wrote <snip> Eerily reminiscent of a Red Alert IBM issued a couple years ago. A macro, customer facing therefore hard to change, was doing a STCK to a wild address. When a certain bit in the TOD changed, IPL cod which tests that bit with no effect other than to crash when it had the wrong value would make the next IPL impossible. </snip>
That seems unlikely, and almost inconceivable unless you IPL without "clear" (aside from if the corrupted storage got written to a data set that was read upon re-IPL). Might you have any details? I certainly understand relatively unpredictable side effects within the current IPL, Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
