remove debug statements

b5b59d7f · Nickolai Zeldovich · 550d1798 · b5b59d7f · b5b59d7f
--- a/trap.c
+++ b/trap.c
@@ -46,13 +46,10 @@ trap(struct trapframe *tf)
  }

  if(tf->trapno == T_PGFLT){
-    cprintf("[%d] page fault for %x\n", cpunum(), rcr2());
    if(pagefault(proc->pgdir, proc->vmap, rcr2()) >= 0){
-      cprintf("[%d] xxx1\n", cpunum());
      switchuvm(proc);
      return;
    }
-    cprintf("[%d] xxx2\n", cpunum());
  }

  switch(tf->trapno){

--- a/vm.c
+++ b/vm.c
@@ -503,22 +503,14 @@ copyin(struct vmap *vmap, uint va, void *p, uint len)
 int
 pagefault(pde_t *pgdir, struct vmap *vmap, uint va)
 {
-  cprintf("pagefault\n");
  pte_t *pte = walkpgdir(pgdir, (const void *)va, 1);
-  cprintf("pagefault: 0\n");
-  if((*pte & (PTE_P|PTE_U|PTE_W)) == (PTE_P|PTE_U|PTE_W)) {
-    cprintf("pagefault: 1\n");
+  if((*pte & (PTE_P|PTE_U|PTE_W)) == (PTE_P|PTE_U|PTE_W))
    return 0;
-  }

-  cprintf("pagefault: 1.1\n");
  struct vma *m = vmap_lookup(vmap, va);
-  if(m == 0) {
-    cprintf("pagefault: 2\n");
+  if(m == 0)
    return -1;
-  }

-  cprintf("pagefault: 3\n");
  uint npg = (PGROUNDDOWN(va) - m->va_start) / PGSIZE;
  *pte = PADDR(m->n->page[npg]) | PTE_P | PTE_U | PTE_W;
  release(&m->lock);