From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: poffice@blade.nagaokaut.ac.jp Delivered-To: poffice@blade.nagaokaut.ac.jp Received: from kankan.nagaokaut.ac.jp (kankan.nagaokaut.ac.jp [133.44.2.24]) by blade.nagaokaut.ac.jp (Postfix) with ESMTP id BCE5919E005C for ; Fri, 18 Dec 2015 18:37:36 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id E3762B5D900 for ; Fri, 18 Dec 2015 19:09:43 +0900 (JST) Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id 75F1618CC7B6 for ; Fri, 18 Dec 2015 19:09:44 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 898881204DA; Fri, 18 Dec 2015 19:09:42 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o10.shared.sendgrid.net (o10.shared.sendgrid.net [173.193.132.135]) by neon.ruby-lang.org (Postfix) with ESMTPS id 1CAD1120491 for ; Fri, 18 Dec 2015 19:09:38 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=9d1RWRNlh5X6jxjjyWVjK5OFvBw=; b=uDMNZbChmhTMdIHTYi +DCd4FVD6oqPPMJW4m0guTn9iU9LN7VwlyfQSicuNd6fOPVxXSR43HrQeyaB3VhB V3EgIcrbl1o0uVi4i0i6US7S0vRlC6+xabsKKNMAYEobNBFpwFms48lMxAKwZ0ZX tornnVJ43rKQXo5rFQnHnhtyo= Received: by filter0847p1mdw1.sendgrid.net with SMTP id filter0847p1mdw1.14635.5673DB5E1 2015-12-18 10:09:34.004928356 +0000 UTC Received: from herokuapp.com (ec2-50-16-98-129.compute-1.amazonaws.com [50.16.98.129]) by ismtpd0003p1iad1.sendgrid.net (SG) with ESMTP id jxyWByGdSaGGJt3rqsHLaA Fri, 18 Dec 2015 10:09:34.004 +0000 (UTC) Date: Fri, 18 Dec 2015 10:09:33 +0000 From: alex.gaziev@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Redmine-MailingListIntegration-Message-Ids: 46955 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11692 X-Redmine-Issue-Author: gazay X-Redmine-Issue-Assignee: ko1 X-Redmine-Sender: gazay X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS4xdVE5kgdhXKobsV7z5rsKzmpGpyGD8HBo+B uNwkRELf0Ak1FzVflHX2QwhYTpgJvlWIy5yGEBzZQEKTuXrA2EI7hR7iJDvQAwDA/HgnNSIiPgR/wo uJyTmKOBh0mncOCHTxe+Mh7wnIqr9vYrNdbRlb1AiHENnsPhdjJKNERavQ== X-ML-Name: ruby-core X-Mail-Count: 72360 Subject: [ruby-core:72360] [Ruby trunk - Bug #11692] [PATCH] Re-enable GC if stack overflow was caught from signal handler X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #11692 has been updated by Alex Gaziev. File re-enable-GC-if-stack-overflow-was-caught-from.patch added As I see, problem wasn't fixed in Ruby 2.2.4. Patch for it in attachment ---------------------------------------- Bug #11692: [PATCH] Re-enable GC if stack overflow was caught from signal handler https://bugs.ruby-lang.org/issues/11692#change-55653 * Author: Alex Gaziev * Status: Closed * Priority: Normal * Assignee: Koichi Sasada * ruby -v: * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN ---------------------------------------- We got ruby application running on our production server and noticed that it regularly crashes with out of memory errors. After months of investigation, I narrowed the case to the examples (1/2). After digging ruby sources and running test code, I found out that GC stopped working after recovering from native stack overflow error. Probably the relevant code appeared in 2.2 https://github.com/ruby/ruby/commit/0c391a55d3ed4637e17462d9b9b8aa21e64e2340 where ruby_disable_gc_stress became ruby_disable_gc. Patches for trunk and 2.2 branches below. ---Files-------------------------------- example1.rb (311 Bytes) example2.rb (333 Bytes) re-enable-gc-after-stackoverflow-trunk.patch (985 Bytes) re-enable-gc-after-stackoverflow-ruby-2-2.patch (985 Bytes) gc_threads_issue.rb (1.53 KB) re-enable-GC-if-stack-overflow-was-caught-from.patch (1.5 KB) -- https://bugs.ruby-lang.org/