IKJ57310I   BREAKPOINT AT addr HAS BEEN DEACTIVATED

The GO subcommand was issued to resume execution at a breakpoint. The breakpoint was established on an instruction for which TSO/E TEST only supports a single pass breakpoint. The breakpoint has been removed and will no longer be in effect until the user reestablishes it by using the AT subcommand of TSO/E TEST. See the GO subcommand of TSO/E TEST in z/OS TSO/E Command Reference for a list of instructions which support only single pass breakpoints.