Issue #9110 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 1.9.3: REQUIRED, 2.0.0: REQUIRED to 1.9.3: REQUIRED, 2.0.0: DONE r43685, r43690 and r43705 were backported to ruby_2_0_0 at r44325. ---------------------------------------- Bug #9110: double free or corruption error at_exit with callcc https://bugs.ruby-lang.org/issues/9110#change-43807 Author: Glass_saga (Masaki Matsushita) Status: Closed Priority: Normal Assignee: Glass_saga (Masaki Matsushita) Category: core Target version: ruby -v: ruby 2.1.0dev (2013-11-14 trunk 43675) [x86_64-linux] Backport: 1.9.3: REQUIRED, 2.0.0: DONE Following code causes double free or corruption error. require "continuation" c = nil at_exit { c.call } at_exit { callcc {|_c| c = _c } } -- http://bugs.ruby-lang.org/