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UNIX V6 - Coggle Diagram

- - - - "proc" data structure
        
        p_stat
        
        null
        
        SSLEEP: sleep on high priority
        
        SWAIT: sleep on low priority
        
        SRUN
        
        SIDL
        
        SZOMB
        
        SSTOP
        
        p_flag
        
        SLOAD: in core
        
        SSYS: scheduling process
        
        SLOCK: process can not be swapped
        
        SSWAP: process is being swapped
        
        STRC: process is being traced
        
        SWTED: another trace flag
        
        p_addr: data segment address or disk record number
        
        p_size: data segment size / block size
        
        p_pri
        
        p_pid, p_ppid
        
        p_sig, p_uid, p_ttyp
        
        p_wchan
      - data segment
        
        per process data area
        
        user program data
        
        user program text(possibly)
        
        use stack