From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on starla X-Spam-Level: X-Spam-Status: No, score=0.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_BL_SPAMCOP_NET,SPF_HELO_PASS, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 Received: from nue.mailmanlists.eu (nue.mailmanlists.eu [94.130.110.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id E9E9B1F44D for ; Thu, 14 Mar 2024 13:02:26 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=pass (1024-bit key; secure) header.d=ml.ruby-lang.org header.i=@ml.ruby-lang.org header.a=rsa-sha256 header.s=mail header.b=MYgw0k5X; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.a=rsa-sha256 header.s=s1 header.b=T6+T7rTd; dkim-atps=neutral Received: from nue.mailmanlists.eu (localhost [127.0.0.1]) by nue.mailmanlists.eu (Postfix) with ESMTP id CD2FD8339D; Thu, 14 Mar 2024 13:02:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ml.ruby-lang.org; s=mail; t=1710421336; bh=PRKliF3EzmLNdH0yAd6I63/jHhH5IEStM4VMYu9poZw=; h=Date:References:To:Reply-To:Subject:List-Id:List-Archive: List-Help:List-Owner:List-Post:List-Subscribe:List-Unsubscribe: From:Cc:From; b=MYgw0k5X4FmQCa1oYyeqZjXX4gA7iuVQPmsywoeAMrsnSY1CEN69ExB4OggxOri/c rs4AUbRGqSE3mnn5/56OHt1r59tZMVRRjozhbNeA1B8t+wirMUQSx2O8DNHmlJSdWi TMaMStOP0XVxKNof0rxez4cf5nLg98KpekeErd2o= Received: from s.wrqvtzvf.outbound-mail.sendgrid.net (s.wrqvtzvf.outbound-mail.sendgrid.net [149.72.126.143]) by nue.mailmanlists.eu (Postfix) with ESMTPS id 8FDC383397 for ; Thu, 14 Mar 2024 13:02:13 +0000 (UTC) Authentication-Results: nue.mailmanlists.eu; dkim=pass (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.a=rsa-sha256 header.s=s1 header.b=T6+T7rTd; dkim-atps=neutral DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ruby-lang.org; h=from:references:subject:mime-version:content-type: content-transfer-encoding:list-id:to:cc:content-type:from:subject:to; s=s1; bh=dq0YlozDMGhhnKEnFq6SmaLLLIyGyeY2nkr4DQwlTck=; b=T6+T7rTdhLdHSeL9IHh5YEfRC9laGBrDyL/++YWIAH8UNtUMcIcIQy84qlaTX3ruV4Sc 9HwO+0sTF8UXL3DWu/jLO1B5bIb2s0N9Ln+FGAKAXWMK+tAc2pMhwDFufay5aOlNoc0Z13 sFDiw9Gr6OCEeuBHDdC6LPZsxCYqzu3Jdie2eL/U/mljWLaN3QfbzJ2LEx0S/jBXg80J7u f0LhczAtZP/hnG2GXacVz6xuK4uYtyc/2+amb4pmw0ZK6wbkrdGwshtxOHt5VE2abvtj96 DphOtmnVWTfvGg8JkB/PmgOmaFDJOEdQWsQ5+Bxwcvq2hx6oC8I/ND6L0zAaF5/g== Received: by filterdrecv-c57655446-m9b58 with SMTP id filterdrecv-c57655446-m9b58-1-65F2F553-39 2024-03-14 13:02:11.800677744 +0000 UTC m=+828434.456876311 Received: from herokuapp.com (unknown) by geopod-ismtpd-36 (SG) with ESMTP id L9BlIES_TPGFf4HlGJbXUg for ; Thu, 14 Mar 2024 13:02:11.631 +0000 (UTC) Date: Thu, 14 Mar 2024 13:02:11 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 X-Redmine-Project: ruby-master X-Redmine-Issue-Tracker: Bug X-Redmine-Issue-Id: 20161 X-Redmine-Issue-Author: peterzhu2118 X-Redmine-Issue-Priority: Normal X-Redmine-Sender: naruse 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-Redmine-MailingListIntegration-Message-Ids: 93730 X-SG-EID: =?us-ascii?Q?u001=2EhGFfhdJzu4NO4V2+b30G6dbw+VuL3beZ0PPXT3QK5Aw+yzEytPMyHWWhg?= =?us-ascii?Q?MagkviFV7=2FAUx7fnB3tdvTxuSCk0LLH4b1CrHtC?= =?us-ascii?Q?l6cRiYqjpZX+zTE9NMIHdeHOU3Ykkn2AosSjsgP?= =?us-ascii?Q?oiTil3oQ31yqZadCvUCA=2F07xM26e0DlAQi7lRXb?= =?us-ascii?Q?HrpnPNaM3XkRxVj5Li9HlP2jDPjGQPQmrV=2FOXm7?= =?us-ascii?Q?cpOmum3eplRqDyi71FEiAEfwsztVn+f5qidckkK?= =?us-ascii?Q?lqEqjU9Bruv9ayywbVJ7okHxMg=3D=3D?= To: ruby-core@ml.ruby-lang.org X-Entity-ID: u001.I8uzylDtAfgbeCOeLBYDww== Message-ID-Hash: XHMOUYZLLZPN44N3GRPMOML64JFJ7SRO X-Message-ID-Hash: XHMOUYZLLZPN44N3GRPMOML64JFJ7SRO X-MailFrom: bounces+313651-b711-ruby-core=ml.ruby-lang.org@em5188.ruby-lang.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.3 Precedence: list Reply-To: Ruby developers Subject: [ruby-core:117164] [Ruby master Bug#20161] Memory leak in regexp grapheme clusters List-Id: Ruby developers Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: "naruse (Yui NARUSE) via ruby-core" Cc: "naruse (Yui NARUSE)" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Issue #20161 has been updated by naruse (Yui NARUSE). Backport changed from 3.0: UNKNOWN, 3.1: REQUIRED, 3.2: DONE, 3.3: REQUIRED to 3.0: UNKNOWN, 3.1: REQUIRED, 3.2: DONE, 3.3: DONE ruby_3_3 577f9c7a8334bb33512f01e7db95f6fb15e280b2 merged revision(s) 37ed86fd3c798e298fad9db6e7df1f3f45e1e03b. ---------------------------------------- Bug #20161: Memory leak in regexp grapheme clusters https://bugs.ruby-lang.org/issues/20161#change-107255 * Author: peterzhu2118 (Peter Zhu) * Status: Closed * Backport: 3.0: UNKNOWN, 3.1: REQUIRED, 3.2: DONE, 3.3: DONE ---------------------------------------- GitHub PR: https://github.com/ruby/ruby/pull/9447 The cc->mbuf gets overwritten, so we need to free it to not leak memory. For example: ```ruby str = "hello world".encode(Encoding::UTF_32LE) 10.times do 1_000.times do str.grapheme_clusters end puts `ps -o rss= -p #{$$}` end ``` Before: ``` 15536 15760 15920 16144 16304 16480 16640 16784 17008 17280 ``` After: ``` 15584 15584 15760 15824 15888 15888 15888 15888 16048 16112 ``` -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/postorius/lists/ruby-core.ml.ruby-lang.org/