From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-3.0 required=3.0 tests=BAYES_00,DKIM_ADSP_CUSTOM_MED, FORGED_GMAIL_RCVD,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id 7CE6D211B3 for ; Sun, 2 Dec 2018 16:49:01 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 5D56D1211BA; Mon, 3 Dec 2018 01:48:59 +0900 (JST) Received: from o1678948x4.outbound-mail.sendgrid.net (o1678948x4.outbound-mail.sendgrid.net [167.89.48.4]) by neon.ruby-lang.org (Postfix) with ESMTPS id 71A9E120F17 for ; Mon, 3 Dec 2018 01:48:57 +0900 (JST) Received: by filter0060p3iad2.sendgrid.net with SMTP id filter0060p3iad2-7017-5C040CF5-7 2018-12-02 16:48:53.287399859 +0000 UTC m=+1457249.114081553 Received: from herokuapp.com (ec2-54-157-57-238.compute-1.amazonaws.com [54.157.57.238]) by ismtpd0030p1iad1.sendgrid.net (SG) with ESMTP id a_72A-AHQP2ffOIeH_JZiQ for ; Sun, 02 Dec 2018 16:48:53.110 +0000 (UTC) Date: Sun, 02 Dec 2018 16:48:53 +0000 (UTC) From: melentievm@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 65622 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 15367 X-Redmine-Issue-Author: printercu X-Redmine-Sender: printercu 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS5IhuTxUAMgGf87kzFzuFmJAfQ00USNDsRtNl BgZdw5eedP7WwHUMvj53PPWnoQT46ZZpeAqz+RuZjeRKr6n31B6TMV4Ry/9PP+vNY7XKr9C7enZCAH JUN5zuIJApsSrr4wDs2rrFAMQ4p4Ya4rh9vcQTh+NE5sew/TzEZo8ur2Lw== X-ML-Name: ruby-core X-Mail-Count: 90226 Subject: [ruby-core:90226] [Ruby trunk Bug#15367] IO.select is not resumed when io-object gets closed 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #15367 has been reported by printercu (Max Melentiev). ---------------------------------------- Bug #15367: IO.select is not resumed when io-object gets closed https://bugs.ruby-lang.org/issues/15367 * Author: printercu (Max Melentiev) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN ---------------------------------------- Here is sample code: ~~~ ruby rp, wp = IO.pipe t2 = Thread.new { IO.select([rp]) } # This also does not work: # t2 = Thread.new { IO.select([rp], nil, [rp]) } sleep 0.01 rp.close t2 # => # ~~~ It happens only on linux, tested with 2.5.1, 2.6.0-preview2. On macOS it gives error, as expected: ~~~ # terminated with exception (report_on_exception is true): Traceback (most recent call last): 1: from (pry):5:in `block in
' (pry):5:in `select': Bad file descriptor (Errno::EBADF) > t2 => # ~~~ -- https://bugs.ruby-lang.org/