re-revert r59020

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59025 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_io.rb

@@ -2823,28 +2823,6 @@ __END__
     end;
   end
 
-  def test_single_exception_on_close
-    a = []
-    t = []
-    10.times do
-      r, w = IO.pipe
-      a << [r, w]
-      t << Thread.new do
-        while r.gets
-        end rescue IOError
-        Thread.current.pending_interrupt?
-      end
-    end
-    a.each do |r, w|
-      w.write -"\n"
-      w.close
-      r.close
-    end
-    t.each do |th|
-      assert_equal false, th.value, '[ruby-core:81581] [Bug #13632]'
-    end
-  end
-
   def test_open_mode
     feature4742 = "[ruby-core:36338]"
     bug6055 = '[ruby-dev:45268]'

thread.c

@@ -2213,8 +2213,6 @@ rb_notify_fd_close(int fd)
 	if (wfd->fd == fd) {
 	    rb_thread_t *th = wfd->th;
 	    VALUE err = th->vm->special_exceptions[ruby_error_stream_closed];
-
-	    wfd->fd = -1; /* ensure we only enqueue once */
 	    rb_threadptr_pending_interrupt_enque(th, err);
 	    rb_threadptr_interrupt(th);
 	    busy = 1;