* cont.c (cont_new): add debug message.

* cont.c (cont_restore_1): copy stack information from fiber.
* cont.c (rb_fiber_s_new): fix to mark created fiber.
* test/ruby/test_fiber.rb: add some tests around Thread and Fiber.
* yarvcore.c (thread_free): fix to skip freeing stack if root fiber
  is available.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12454 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_fiber.rb

@@ -40,6 +40,23 @@ class TestFiber < Test::Unit::TestCase
     )
   end
 
+  def test_many_fibers_with_threads
+    max = 1000
+    @cnt = 0
+    (1..100).map{|ti|
+      Thread.new{
+        max.times{|i|
+          Fiber.new{
+            @cnt += 1
+          }.yield
+        }
+      }
+    }.each{|t|
+      t.join
+    }
+    assert_equal(:ok, :ok)
+  end
+
   def test_error
     assert_raise(ArgumentError){
       Fiber.new # Fiber without block