Hi Todd & Roland First let me thank you for your replys. When I said RU I ment SERIAL of course. but unfortunately ZOS does not take the care actually to serial the call and it's the application responsibility. On the DB2 SP documentation it states that SP should be RN & RU or No-Rent and No-Reus because the same RU module can be loaded more then one time in diffrent thread's under the same jobstep (DB2SPAS). Also the abends are random, and we have discovered that the calling routine was running more then 32800 times(Max use count is 32767). I think that we are abending when another SP was using the RU module (another thread), but on the CREATE SP statement the STAY RESIDENT NO specified (I'm not sure that this parm is regarding to all LM chain).... Regarding to DB2WLM we are getting there. Magen.
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