merge revision(s) 45364,45395,45396,45403,45406: [Backport #9652]

	* time.c (time_mload): freeze and preserve marshal-loaded time zone

	* test/ruby/test_time.rb: add test for GC on loaded object
	  [Bug #9652]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@45752 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

4 files changed, 24 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index d93c5c2a63..35f10dee5d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Wed Apr 30 16:33:57 2014  Eric Wong  <e@80x24.org>
+
+	* time.c (time_mload): freeze and preserve marshal-loaded time zone
+	* test/ruby/test_time.rb: add test for GC on loaded object
+	  [Bug #9652]
+
 Wed Apr 30 16:15:09 2014  Kohei Suzuki  <eagletmt@gmail.com>
 
 	* vm_method.c (rb_method_entry_get_without_cache): me->klass is 0
diff --git a/test/ruby/test_time.rb b/test/ruby/test_time.rb
index 02ebc6ac38..188ec0da04 100644
--- a/test/ruby/test_time.rb
+++ b/test/ruby/test_time.rb
@@ -311,6 +311,21 @@ class TestTime < Test::Unit::TestCase
     end
   end
 
+  def test_marshal_zone_gc
+    assert_separately(%w(--disable-gems), <<-'end;', timeout: 30)
+      ENV["TZ"] = "JST-9"
+      s = Marshal.dump(Time.now)
+      t = Marshal.load(s)
+      n = 0
+      done = 100000
+      while t.zone.dup == "JST" && n < done
+        n += 1
+      end
+      assert_equal done, n, "Bug #9652"
+      assert_equal "JST", t.zone, "Bug #9652"
+    end;
+  end
+
   def test_marshal_to_s
     t1 = Time.new(2011,11,8, 0,42,25, 9*3600)
     t2 = Time.at(Marshal.load(Marshal.dump(t1)))
diff --git a/time.c b/time.c
index 25c7f7eba9..dfcbfbac0f 100644
--- a/time.c
+++ b/time.c
@@ -4887,7 +4887,9 @@ end_submicro: ;
 	time_fixoff(time);
     }
     if (!NIL_P(zone)) {
+	zone = rb_str_new_frozen(zone);
 	tobj->vtm.zone = RSTRING_PTR(zone);
+	rb_ivar_set(time, id_zone, zone);
     }
 
     return time;
diff --git a/version.h b/version.h
index 2e92c53646..f1ab57c68f 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.0.0"
 #define RUBY_RELEASE_DATE "2014-04-30"
-#define RUBY_PATCHLEVEL 472
+#define RUBY_PATCHLEVEL 473
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 4