From 611e2874982afa0e9a684159ca3d228563a813c0 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 8 May 2008 06:59:03 +0000
Subject: [PATCH] * thread.c (rb_gc_save_machine_context): call
 FLUSH_REGISTER_WINDOWS   to mark the register stack from GC on another
 thread.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                    |  5 +++++
 bootstraptest/test_thread.rb | 12 ++++++++++++
 thread.c                     |  1 +
 3 files changed, 18 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index a9e5d241ef..c50f3968a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu May  8 15:36:11 2008  Tanaka Akira  <akr@fsij.org>
+
+	* thread.c (rb_gc_save_machine_context): call FLUSH_REGISTER_WINDOWS
+	  to mark the register stack from GC on another thread.
+
 Thu May  8 15:14:34 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* array.c (rb_ary_sort_bang): freeze temporary array.
diff --git a/bootstraptest/test_thread.rb b/bootstraptest/test_thread.rb
index fde04a8d42..8d88a0f708 100644
--- a/bootstraptest/test_thread.rb
+++ b/bootstraptest/test_thread.rb
@@ -234,3 +234,15 @@ assert_normal_exit %q{
   STDERR.reopen(STDOUT)
   exec "/"
 }
+
+assert_normal_exit %q{
+  (0..10).map {
+    Thread.new {
+     10000.times {
+        Object.new.to_s
+      }
+    }
+  }.each {|t|
+    t.join
+  }
+}
diff --git a/thread.c b/thread.c
index ff85e0f04c..f7a4b8ba7a 100644
--- a/thread.c
+++ b/thread.c
@@ -1966,6 +1966,7 @@ void
 rb_gc_save_machine_context(rb_thread_t *th)
 {
     SET_MACHINE_STACK_END(&th->machine_stack_end);
+    FLUSH_REGISTER_WINDOWS;
 #ifdef __ia64
     th->machine_register_stack_end = rb_ia64_bsp();
 #endif