diff --git a/ChangeLog b/ChangeLog
index 7f17320b34..0e4566d5fb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Tue Feb 19 18:34:32 2008  Tanaka Akira  <akr@fsij.org>
+
+	* gc.c (STACK_LENGTH) [SPARC] : 0x80 offset removed.  [ruby-dev:33857]
+
 Tue Feb 19 14:27:32 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* ext/readline/readline.c (readline_event): prevent polling.  based on
diff --git a/gc.c b/gc.c
index 275f9fc4aa..c7317a4101 100644
--- a/gc.c
+++ b/gc.c
@@ -453,9 +453,7 @@ stack_end_address(VALUE **stack_end_p)
 # endif
 # define STACK_END (stack_end)
 #endif
-#if defined(sparc) || defined(__sparc__)
-# define STACK_LENGTH  (rb_gc_stack_start - STACK_END + 0x80)
-#elif STACK_GROW_DIRECTION < 0
+#if STACK_GROW_DIRECTION < 0
 # define STACK_LENGTH  (rb_gc_stack_start - STACK_END)
 #elif STACK_GROW_DIRECTION > 0
 # define STACK_LENGTH  (STACK_END - rb_gc_stack_start + 1)