diff --git a/ChangeLog b/ChangeLog
index 56a7985e44..6186e20d6c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+Sun Arg 12 03:56:30 2007  Masatoshi SEKI  <m_seki@mva.biglobe.ne.jp>
+
+	* lib/rinda/tuplespace.rb: fix Rinda::TupleSpace keeper thread bug.
+	  the thread is started too early. [ruby-talk:264062] 
+
+	* test/rinda/test_rinda.rb: ditto.
+
 Wed Aug 22 12:31:15 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in (ac_cv_func_isinf): set yes also on OpenSolaris.
diff --git a/lib/rinda/tuplespace.rb b/lib/rinda/tuplespace.rb
index 73e79bb401..6d58a0fd15 100644
--- a/lib/rinda/tuplespace.rb
+++ b/lib/rinda/tuplespace.rb
@@ -404,7 +404,6 @@ module Rinda
 
     def write(tuple, sec=nil)
       entry = TupleEntry.new(tuple, sec)
-      start_keeper
       synchronize do
         if entry.expired?
           @read_waiter.find_all_template(entry).each do |template|
@@ -414,6 +413,7 @@ module Rinda
           notify_event('delete', entry.value)
         else
           @bag.push(entry)
+          start_keeper if entry.expires
           @read_waiter.find_all_template(entry).each do |template|
             template.read(tuple)
           end
@@ -439,7 +439,6 @@ module Rinda
     def move(port, tuple, sec=nil)
       template = WaitTemplateEntry.new(self, tuple, sec)
       yield(template) if block_given?
-      start_keeper
       synchronize do
         entry = @bag.find(template)
         if entry
@@ -452,6 +451,7 @@ module Rinda
 
         begin
           @take_waiter.push(template)
+          start_keeper if template.expires
           while true
             raise RequestCanceledError if template.canceled?
             raise RequestExpiredError if template.expired?
@@ -476,7 +476,6 @@ module Rinda
     def read(tuple, sec=nil)
       template = WaitTemplateEntry.new(self, tuple, sec)
       yield(template) if block_given?
-      start_keeper
       synchronize do
         entry = @bag.find(template)
         return entry.value if entry
@@ -484,6 +483,7 @@ module Rinda
 
         begin
           @read_waiter.push(template)
+          start_keeper if template.expires
           template.wait
           raise RequestCanceledError if template.canceled?
           raise RequestExpiredError if template.expired?
@@ -566,8 +566,11 @@ module Rinda
     def start_keeper
       return if @keeper && @keeper.alive?
       @keeper = Thread.new do
-        while need_keeper?
-          keep_clean
+        while true
+          synchronize do
+            break unless need_keeper?
+            keep_clean
+          end
           sleep(@period)
         end
       end
diff --git a/test/rinda/test_rinda.rb b/test/rinda/test_rinda.rb
index d663e0446d..553d3078fe 100644
--- a/test/rinda/test_rinda.rb
+++ b/test/rinda/test_rinda.rb
@@ -240,6 +240,20 @@ module TupleSpaceTestModule
     end
   end
 
+  def test_ruby_talk_264062
+    th = Thread.new { @ts.take([:empty], 1) }
+    sleep 2
+    assert_raises(Rinda::RequestExpiredError) do
+      th.value
+    end
+
+    th = Thread.new { @ts.read([:empty], 1) }
+    sleep 2
+    assert_raises(Rinda::RequestExpiredError) do
+      th.value
+    end
+  end
+
   def test_core_01
     5.times do |n|
       @ts.write([:req, 2])
diff --git a/version.h b/version.h
index d8f8715dce..8628b7bbc4 100644
--- a/version.h
+++ b/version.h
@@ -2,7 +2,7 @@
 #define RUBY_RELEASE_DATE "2007-08-22"
 #define RUBY_VERSION_CODE 186
 #define RUBY_RELEASE_CODE 20070822
-#define RUBY_PATCHLEVEL 87
+#define RUBY_PATCHLEVEL 88
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8