PID 22941 is the login shell from where I started the background process: Snapshot from glance ksh 22941 22940 241 leslie 99.8/67.6 563.8 0.0/ 0.0 268kb 1 First 2 lines from top CPU TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND 0 pts/t0 22941 leslie 241 20 236K 256K run 11:41 89.57 89.41 ksh here is ps -fu leslie from the 'other' terminal: UID PID PPID C STIME TTY TIME COMMAND leslie 22941 22940 242 15:28:32 pts/t0 14:58 -ksh leslie 29326 22939 2 15:48:25 pts/t1 0:00 ps -fu leslie leslie 22939 22938 0 15:28:28 pts/t1 0:00 -ksh Then I do a kill -STOP 22941 and waid a couple of minutes, followed by another ps command: UID PID PPID C STIME TTY TIME COMMAND leslie 22941 22940 0 15:28:32 pts/t0 16:30 -ksh leslie 2959 22939 2 15:58:32 pts/t1 0:00 ps -fu leslie leslie 22939 22938 0 15:28:28 pts/t1 0:00 -ksh Then I do a kill -CONT 22941 and just 10 seconds later ps gives: UID PID PPID C STIME TTY TIME COMMAND leslie 22941 22940 255 15:28:32 pts/t0 16:39 -ksh leslie 22939 22938 0 15:28:28 pts/t1 0:00 -ksh leslie 3908 22939 2 16:00:40 pts/t1 0:00 ps -fu leslie