p1 v(testsem) p2 was started p2 starts p2 v's successfully p2 is OK p3 is started p3 - WAITCLOCK OK p3 - CPU time correctly maintained first incarnation of p4 starts p5 starts p6 starts p7 starts second incarnation of p4 starts Bus Error: Access non-existent memory p4 is OK memory management trap Correct Support Structure Address Address Error: non-kuseg access w/KU=1 High level SYS call from kernel mode process p1 knows p5 ended p8root starts child1 starts child2 starts leaf process starts leaf process starts leaf process starts leaf process starts p8root starts child1 starts child2 starts leaf process starts leaf process starts leaf process starts leaf process starts p8root starts child1 starts child2 starts leaf process starts leaf process starts leaf process starts leaf process starts p8root starts child1 starts child2 starts leaf process starts leaf process starts leaf process starts leaf process starts p1 finishes OK -- TTFN System halted