Improve comment.

diff --git a/src/threads/switch.S b/src/threads/switch.S
index 48fc588973bfe15c016dab042bc75f37c6baba62..244249e07c063594fc3f385937781d22b0bd2371 100644 (file)
--- a/src/threads/switch.S
+++ b/src/threads/switch.S
@@ -21,7 +21,8 @@ switch_threads:
        # but requires us to preserve %ebx, %ebp, %esi, %edi.  See
        # [SysV-ABI-386] pages 3-11 and 3-12 for details.
        #
-       # This stack frame must match the one set up by thread_create().
+       # This stack frame must match the one set up by thread_create()
+       # in size.
        pushl %ebx
        pushl %ebp
        pushl %esi