> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of John C. Wolf > Sent: Monday, November 26, 2007 12:09 PM > To: [email protected] > Subject: branching to zero > > > I have a problem with some TSO users getting 0C1s at logon. > It appears that some module is branching to zero but I can't find it. > I set a IF slip for range 0 to 10 but it will not spring. > I did install a new version of JES2 V1R7 on Friday but only > a few TSO users > have this problem. > Does any one have any ideas on how to shoot this problem. >
In this case, I always look at what is in Registers 14 and 15. If R15==0, then I assume that R14 contains the a return address. I then look at (R14)-2 to see if it is a BALR or BASR instruction. If so, then I see what module R14 is pointing into and look at it. On z/OS 1.8 running on a z9, there is a BEAR register which contains the "branch from" address. But I don't think that is in 1.7. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
