> I have attempted to set a storage alteration PER trap. I was 
> interested in several 4 byte areas distributed across maybe 2 pages.
> My intention was to disable SA monitoring for everything except 
> those 4 byte areas, similar to the way it is described for IF traps:
> 
> SL SET,SA,D,ASIDSA=SA,JOBNAME=xxxx,RA=(1E92D2A0,1E92E4A8),A=TRACE,
> TD=(STD,REGS,1E92D2A0,+8,1E92D4A0,+8,1E92D6A0,+8),id=bn1,e
> IEE727I SLIP TRAP ID=BN1  SET
> 
> SL SET,SA,D,ASIDSA=SA,JOBNAME=xxxx,RA=(1E92D2A8,1E92D49F),A=IGNORE,
> ID=BN2,E 
> IEE739I RANGE    PARAMETER IGNORED FOR SLIP ID=BN2 
> 
> Am I getting this wrong or is this actually not supported? Any hint 
> will be appreciated.

  For a PER-SA event, the architecture does not provide any
information about which addresses were stored into by the instruction
which caused the event.  So the operating system does not 
have the information which would be needed to do the kind of 
filtering that you desire.

Jim Mulder   z/OS System Test   IBM Corp.  Poughkeepsie,  NY


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