mem              1739 usertests.c      mem();
mem               184 vm.c             char *mem;
mem               188 vm.c             mem = kalloc();
mem               189 vm.c             memset(mem, 0, PGSIZE);
mem               190 vm.c             mappages(pgdir, 0, PGSIZE, v2p(mem), PTE_W|PTE_U);
mem               191 vm.c             memmove(mem, init, sz);
mem               223 vm.c             char *mem;
mem               233 vm.c               mem = kalloc();
mem               234 vm.c               if(mem == 0){
mem               239 vm.c               memset(mem, 0, PGSIZE);
mem               240 vm.c               mappages(pgdir, (char*)a, PGSIZE, v2p(mem), PTE_W|PTE_U);
mem               315 vm.c             char *mem;
mem               326 vm.c               if((mem = kalloc()) == 0)
mem               328 vm.c               memmove(mem, (char*)p2v(pa), PGSIZE);
mem               329 vm.c               if(mappages(d, (void*)i, PGSIZE, v2p(mem), flags) < 0)