IBM Mainframe Discussion List <[email protected]> wrote on 05/11/2007 12:38:08 PM:
> When I have sensitive information in the general registers, I am not > vulnerable to an access exception (all client data has already been > copied to my protected storage areas). > > When I am vulnerable to an access exception for client storage, I do > not have sensitive information in the general registers. > > Thus, the only situation that worries me is DETACH or CANCEL interrupting > me when I have sensitive information in the general registers; I have an > FRR defined at that time. Will the DETACH or CANCEL defer until I delete > my FRR? Keep in mind that when your task gets interrupted by an I/O or External interrupt, the GPRs are saved in the TCB/STCB (or IHSA if the local lock is held). These areas are not fetch protected and are thus visible to any program running in your address space. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
