diff --git a/ChangeLog b/ChangeLog
index c7dc03181b..d1a07d9f82 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1821,6 +1821,12 @@ Wed Feb 11 23:37:35 2009  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	  Shin").  [ruby-talk:273360]
 	  back ported from 1.9. fix [ruby-core:19791]
 
+Tue Feb 10 00:01:19 2009  Brent Roman  <brent@mbari.org>
+
+        * gc.c:  don't redundantly mark stack before base of current thread
+        
+        * version.h:  bumped date
+
 Mon Feb  9 17:35:38 2009  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/win32.c (rb_w32_accept): secure fd before accept because if
diff --git a/gc.c b/gc.c
index 7cd4a947fe..7fb7c8499b 100644
--- a/gc.c
+++ b/gc.c
@@ -1486,14 +1486,14 @@ garbage_collect_0(VALUE *top_frame)
     rb_setjmp(save_regs_gc_mark);
     mark_locations_array((VALUE*)save_regs_gc_mark, sizeof(save_regs_gc_mark) / sizeof(VALUE *));
 #if STACK_GROW_DIRECTION < 0
-    rb_gc_mark_locations(top_frame, rb_gc_stack_start);
+    rb_gc_mark_locations(top_frame, rb_curr_thread->stk_start);
 #elif STACK_GROW_DIRECTION > 0
-    rb_gc_mark_locations(rb_gc_stack_start, top_frame + 1);
+    rb_gc_mark_locations(rb_curr_thread->stk_start, top_frame + 1);
 #else
     if (rb_gc_stack_grow_direction < 0)
-	rb_gc_mark_locations(top_frame, rb_gc_stack_start);
+	rb_gc_mark_locations(top_frame, rb_curr_thread->stk_start);
     else
-	rb_gc_mark_locations(rb_gc_stack_start, top_frame + 1);
+	rb_gc_mark_locations(rb_curr_thread->stk_start, top_frame + 1);
 #endif
 #ifdef __ia64
     /* mark backing store (flushed register window on the stack) */
@@ -1502,7 +1502,7 @@ garbage_collect_0(VALUE *top_frame)
 #endif
 #if defined(__human68k__) || defined(__mc68000__)
     rb_gc_mark_locations((VALUE*)((char*)STACK_END + 2),
-			 (VALUE*)((char*)rb_gc_stack_start + 2));
+			 (VALUE*)((char*)rb_curr_thread->stk_start + 2));
 #endif
     rb_gc_mark_threads();
 
diff --git a/version.h b/version.h
index 4f55a43d15..072d90c86b 100644
--- a/version.h
+++ b/version.h
@@ -28,7 +28,7 @@ RUBY_EXTERN const char *ruby_copyright;
 #include "rubysig.h"
 
 #define string_arg(s) #s
-#define MBARI_RELEASE(wipe_sites) "MBARI 7-/" string_arg(wipe_sites)
+#define MBARI_RELEASE(wipe_sites) "MBARI 7/" string_arg(wipe_sites)
 
 #define RUBY_RELEASE_STR MBARI_RELEASE(STACK_WIPE_SITES) " on patchlevel"
 #define RUBY_RELEASE_NUM RUBY_PATCHLEVEL