1 #define NPROC 64 // maximum number of processes 2 #define KSTACKSIZE 4096 // size of per-process kernel stack 3 #define NCPU 8 // maximum number of CPUs 4 #define NOFILE 16 // open files per process 5 #define NFILE 100 // open files per system 6 #define NBUF 10 // size of disk block cache 7 #define NINODE 50 // maximum number of active i-nodes 8 #define NDEV 10 // maximum major device number 9 #define ROOTDEV 1 // device number of file system root disk 10 #define USERTOP 0xA0000 // end of user address space 11 #define PHYSTOP 0x1000000 // use phys mem up to here as free pool 12 #define MAXARG 32 // max exec arguments 13