> >:>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. > Reg 15 is all zeros and a 8 in the right hand place.
That sounds like a link-edit problem. If the problem occurs for all TSO users then you might suspect a TSO logon exit problem. If it only occurs with a subset of TSO users then most likely it is something that gets invoked via the initial command. You would need to track that back to their logon proc. In either case, if the module that is failing is being fetched into the private area of the address space during logon processing then just getting the register contents isn't going to be too helpful. Set yourself a slip trap and catch an SVC dump. Then (as John McKown suggested) take a look at what R14 is pointing into at the time of the error. Chances are it is the return address from a BALR and a few instructions before that R15 will have been loaded from an ADCON. If the module wasn't properly linked that field probably contains zero or something less than the 8 it had at the time of the error. Shouldn't be too hard to figure out who the villain is then. CC ---------------------------------------------------------------------- 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
