Update setup_stack to temporarily fake set-up for a stack to prevent page faults in no arg user programs

2024-11-06 15:48:27 +00:00
parent ab716de0a6
commit fcb7e9e441
1 changed files with 1 additions and 1 deletions
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -457,7 +457,7 @@ 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);
    }