If you have any control over the source for these modules you could try
assembling them with the RENT option. This will do some checking to see
if the modules violate reentrancy. It is not exhaustive but it might
help. Th following is from the HLASM Programmers guide:
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ASMP1010/CCON
TENTS?SHELF=EZ2ZO10I&DN=SC26-4941-04&DT=20040728145947

RENT 
Specifies that the assembler checks for possible coding violations of
program reenterability. Non-reenterable code is identified by an error
message, but is not exhaustively checked because the assembler cannot
check the logic of the code. Therefore, the assembler might not detect
all violations of program reenterability. 

Jon L. Veilleux
[EMAIL PROTECTED]
(860) 636-2683 

 
This e-mail may contain confidential or privileged information. If
you think you have received this e-mail in error, please advise the
sender by reply e-mail and then delete this e-mail immediately.
Thank you. Aetna

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