We just resolved a similar issue with Infopac-JCL dumping with S0C4's while testing on z/OS 1.10 lpar. I too opened a pmr with IBM and ASG. And after MUCH research we found that the Infopac code was not clearing GETMAIN'd storage before using it, which caused the dump.
I also found APAR OA2791 which described it very clearly as an undocumented change to the GETMAIN macro. The APAR offers a new DIAGnn option to bypass the new "feature". I was able to get the Mobius developer at ASG to offer a zap which cleared the storage and thus, resolved our problem. It sounds like you may be affected by the same issue. Hope this helps, Kem King ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html