[Ruby 1.9 - Feature #17] (Closed) deadlock detection for 1.9

e$B%A%1%C%He(B #17 e$B$,99?7$5$l$^$7$?!#e(B (by Yusuke E.)

e$B%9%F!<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B
e$BC4Ev<Te(B Koichi Sasadae$B$+$ie(BYusuke E.e$B$KJQ99e(B

integrated in r17110

http://redmine.ruby-lang.org/issues/show/17