存在环,但没有发生死锁的资源分配图 P2 R2 1958 R2 P4 Resource-allocation graph with a cycle but no deadlock 嵌入式系统实验室 EMBEDDED SYSTEM LAB口RAT口RY SU:MDU INTHUTE OR AOVANCLD STUOY D USTt存在环，但没有发生死锁的资源分配图 R2 P1 P3 P2 P4 Resource-allocation graph with a cycle but no deadlock R2