1 files changed, 2 insertions, 2 deletions
diff --git a/src/userprog/process.c b/src/userprog/process.c
index b3e16bb..45aaaa4 100644
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -88,7 +88,7 @@ start_process (void *file_name_)
 int
 process_wait (tid_t child_tid UNUSED) 
 {
-  return -1;
+  for (;;) {}
 }
 
 /* Free the current process's resources. */
@@ -476,7 +476,7 @@ setup_stack (void **esp)
     {
       success = install_page (((uint8_t *) PHYS_BASE) - PGSIZE, kpage, true);
       if (success)
-        *esp = PHYS_BASE;
+        *esp = PHYS_BASE - 12;
       else
         palloc_free_page (kpage);
     }