1 files changed, 1 insertions, 1 deletions
diff --git a/kalloc.c b/kalloc.c
index e31d71d..bf1616a 100644
--- a/kalloc.c
+++ b/kalloc.c
@@ -27,7 +27,7 @@ kinit(void)
 
   initlock(&kmem.lock, "kmem");
   p = (char*)PGROUNDUP((uint)end);
-  for(; p + PGSIZE - 1 < (char*)PHYSTOP; p += PGSIZE)
+  for(; p + PGSIZE <= (char*)PHYSTOP; p += PGSIZE)
     kfree(p);
 }