Issue #9454 has been updated by Tomoyuki Chikanaga. Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: REQUIRED to 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: DONE r44712, r44715, r44716, r44722, r44725, r44726 and r44753 were backported into `ruby_2_1` branch at r46468. ---------------------------------------- Bug #9454: The define_method(:class) segfault https://bugs.ruby-lang.org/issues/9454#change-47302 * Author: Kyrylo Silin * Status: Closed * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux] * Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: DONE ---------------------------------------- Ruby 2.1.0p0 segfaults when I invoke the following code. define_method(:class) { self.class } self.class #=> segfault :( It affects exclusively Ruby 2.1.0p0 (I also tested on the most recent 2.0.0, 1.9.3 and 1.8.7). By the way, on the contrary, the following code *does not segfault*. def self.class; self.class end self.class #=> SystemStackError Viva la Ucraino revolucin! ---Files-------------------------------- bug9454.txt (625 KB) -- https://bugs.ruby-lang.org/