> I've been trying to get a slip trap to fire in a pair of > STCs where STC1 PCs into STC2 and does some work, which I want to > take an Instruction Fetch slip on. > > My basic slip trap is "SLIP SET,IF,ID=RJM1,ACTION=SVCD,PVTMOD= > (module,offset,offset),END". > > I've tried adding the home stcname as a JOBNAME, the primary STCname > as a JOBNAME, I've tried no jobname, I've tried MODE=ALL, no mode > statement, and most combinations of these. Whatever combination I > try doesn't fire. > > I'm pretty sure I have the incantation wrong but don't know what to try. > > I'm fairly sure my offset is correct and it is being used because if > I zap the offset to be zeros I get a fine dump of both ASIDs > > What am I doing wrong? Can someone show me a cross memory IF > sliptrap that works?
Also specify the ASID of STC2 via the ASID parameter, e.g. SLIP SET,IF,ID=RJM1,ACTION=SVCD,ASID=(asid-of-STC2), PVTMOD=(module,offset,offset),END In some parts of MVS (like IPCS, or the DUMP command), ASID and JOBNAME can be two different ways to specify the same thing. This is not the case with the SLIP command. ASID and JOBNAME do different things for SLIP, especially when cross-memory is involved. My way of thinking about it is that JOBNAME filters based on the Home address space, and ASID filters based on the address space from which instructions are being fetched (which is the Primary address space). With respect to PVTMOD, the manual says: "Private area modules can reside (starting at different addresses) in several address spaces. To resolve the range of addresses to be monitored for PVTMOD to a particular address space, use either the JOBNAME parameter with MODE=HOME or the ASID parameter. If neither parameter is specified and the module is loaded into several address spaces, the system might resolve the PER range to any one of those address spaces." Since you are trying to trap the fetch of an instruction in STC2 when STC1 is Home, you cannot use MODE=HOME, so ASID is your only choice. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
