Is there any tool that can detect when a particular virtual storage address in 
a batch address space is stored into?

I have a COBOL application subroutine that is experiencing a storage overlay in 
a pre-initialized (at compile time) working storage table (300 bytes total 
length) and there is no obvious table-out-of-bounds overlay code anywhere I can 
find so far. The overlay seems to occur at a repeatable storage address seen 
over multiple test runs trying to track down the issue.

If I can get a dump and a PSW address at which the storage overlay occurs I can 
solve the problem easily.  I would expect there to be 2 stores into the area, 
once by COBOL initialization code the first time the COBOL subroutine is called 
and once by the overlay offender.

If it takes something that requires a system programmer to set up and run I can 
probably get that assistance this time, as this is a scheduled application job 
that is going down.

TIA for any advice you can provide.

Peter
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