I have no idea about the problem (not seeing any obvious reason codes defined that look like that, with or without the 00FF) but:
<snip> Catching the ABEND with an ESPIE, I find that it is an SEC6 ABEND, with R15 containing X'00FFCE54'. </snip> Did you really mean ESPIE? An ESPIE routine will not get control for an abend. If an ESPIE routine did get control, you are looking at the registers at the time of some program check, not at the time of an abend. The IEA848I message indicates that SLIP suppressed that dump. The SLIP traps for EC6 that are shipped with z/OS would not suppress for R15 = x'00FFCE54' (whether it's a reason code or not) SLIP SET,C=EC6,RE=0000FFXX,ID=XEC6,A=NODUMP,END SLIP SET,C=EC6,RE=0000FDXX,ID=XXC6,A=NOSVCD,END (the latter wouldn't apply because yours is not an SVC Dump) So maybe it wasn't 00FFCE54 but something else? or maybe your site has set a SLIP trap that suppresses additional EC6 cases that they could relax for you? Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN