From: "mrkn (Kenta Murata)" Date: 2013-07-18T20:18:12+09:00 Subject: [ruby-core:56077] [ruby-trunk - Bug #8654] SEGV in Array#count Issue #8654 has been updated by mrkn (Kenta Murata). Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN to 1.9.3: REQUIRED, 2.0.0: REQUIRED I confirmed it is reproducible on the both head revisions of ruby_1_9_3 and ruby_2_0_0. ---------------------------------------- Bug #8654: SEGV in Array#count https://bugs.ruby-lang.org/issues/8654#change-40571 Author: Glass_saga (Masaki Matsushita) Status: Assigned Priority: Normal Assignee: Glass_saga (Masaki Matsushita) Category: core Target version: current: 2.1.0 ruby -v: ruby 2.1.0dev (2013-07-18 trunk 42039) [x86_64-linux] Backport: 1.9.3: REQUIRED, 2.0.0: REQUIRED Following code causes SEGV. a1 = [] a2 = Array.new(100) {|i| i } a2.count do |i| p i a2.replace(a1) if i == 0 end -- http://bugs.ruby-lang.org/