cow lab finished

2025-07-03 10:28:51 +08:00
parent 66657d1ca0
commit c8bae855c5
3 changed files with 162 additions and 1 deletions
--- a/kernel/vm.c
+++ b/kernel/vm.c
@@ -90,7 +90,8 @@ pte_t *
 walk(pagetable_t pagetable, uint64 va, int alloc)
 {
  if(va >= MAXVA)
-    panic("walk");
+    return 0;
+    // panic("walk");

  for(int level = 2; level > 0; level--) {
    pte_t *pte = &pagetable[PX(level, va)];