Process control block (contd.)
Process control information (contd.)
- Process privileges: access privileges to certain memory area, critical structures etc.
- Memory management: pointer to the various memory management data structures.
- Resource ownership : Pointer to resources such as opened files. Info may be used by scheduler.
PCBs need to be protected from inadvertent destruction by any routine. So protection of PCBs is a critical issue in the design of an OS.