From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-3.3 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 2238 invoked from network); 10 Jun 2021 08:26:08 -0000 Received: from zero.zsh.org (2a02:898:31:0:48:4558:7a:7368) by inbox.vuxu.org with ESMTPUTF8; 10 Jun 2021 08:26:08 -0000 ARC-Seal: i=1; cv=none; a=rsa-sha256; d=zsh.org; s=rsa-20200801; t=1623313569; b=c5FmQnfOHe/8KSuINT7q0AiOZ3S1kJwR3cHLtaGWZNS7Tu6FDFFXL7Vc7JN2j2j/n2eTnbnOvb /wlpqAuvFJxGEiptHKPJccYky1haviFKMGIc2a7IxEDFVkVT1TrC96ix3u6hZmiQeSMQ4/R+sT hOA97zqiCAHDmxZyUD1HODkvE8gHMZS3Nzv9JKVOtbh/FKVAYIt0M9r35bJ8csvY+b7T1bROp2 nSMoBooxPrGyykDRfSSQqzmXinHLmXcr7y9Mw1efPIDslsElHH/Zfm8wJKMoZMBwxRwrv47tPF V1yYSFZstWhNOQOJMl7e7yBU0ZZxe+tNF7YG9LMAA/zc3g==; ARC-Authentication-Results: i=1; zsh.org; iprev=pass (joooj.vinc17.net) smtp.remote-ip=155.133.131.76; dmarc=none header.from=vinc17.net; arc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed; d=zsh.org; s=rsa-20200801; t=1623313569; bh=AM5/1SZjFYKBGDQxp0JanF7tTZBOaEBjGL3F2sC9eCs=; h=List-Archive:List-Owner:List-Post:List-Unsubscribe:List-Subscribe:List-Help: List-Id:Sender:Content-Transfer-Encoding:Content-Type:MIME-Version: Message-ID:Subject:To:From:Date:DKIM-Signature; b=ay6F+F0liz3QOgqw2N2QRiPfZlG1/Ej03dYHZp32IXpYMqNDdYky7HX3g6Y/Lms68DoRDMKwbs bSbIRYUd/NlkRJlmbGTcl48vVIDZWzPd2nbrICghwhD8re9WQabz1a/y5XDmSsD6iZaIx78kKt hPYoqtdhqj7xR5ii2RcH9GcCExWVc8VtGVQn42j0v0lPatsWY5hLWpgEDNXVroFLFL7NF1Jb45 9fRNWrFv4t8MuNFMzu/s8aH2Ar83fE7VEiV8aSALpY2ZcqZ+umr1GmTY+YLheRDa2B1eHzRcnl PAEIOQeqWnefUEPFnL/RLMJZlLB/7PaQh6wsZo7RqvjNPw==; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=zsh.org; s=rsa-20200801; h=List-Archive:List-Owner:List-Post:List-Unsubscribe: List-Subscribe:List-Help:List-Id:Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Subject:To:From:Date:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References; bh=mVBJE2NM14y9BfVLKtLZjRs0r5IMv2qdA8LEoDPWhRY=; b=OUr30vWYbqQsnlLloumEXgPZ4I jpfqZAnTVIYEWjPD956Lwd4TuWEAAJW473GCaIdIfUe/g88Ys1VsFySC1cxE2IpGzMBr2A0YAj3EK PjPCvPRBhgqx0UWOb5mLBxj5XCipBnzAvPkmazsLtb0NLqEBZtYcCkqDn4fYosi+gZ94mt3DEIh2z u/W0HAaVioGJ2Agg0P7+Lu+uQpsiQ9IMdGceZcBbsY+DRS/SaRMTpsjfDuSo7OPeGGa0Dn/S2CgbN 5EYNnF5Lbz6WDByeDK+ADqWwQN0oHwpzhiWNiG0uYeMrtD+JJJfOAIiqMbcv1ENXNKaoIPoybNRzN EiXD4DAw==; Received: from authenticated user by zero.zsh.org with local id 1lrG0t-000Mdi-Qd; Thu, 10 Jun 2021 08:26:07 +0000 Authentication-Results: zsh.org; iprev=pass (joooj.vinc17.net) smtp.remote-ip=155.133.131.76; dmarc=none header.from=vinc17.net; arc=none Received: from joooj.vinc17.net ([155.133.131.76]:44052) by zero.zsh.org with esmtps (TLS1.3:TLS_AES_256_GCM_SHA384:256) id 1lrG0d-000MLy-Jw; Thu, 10 Jun 2021 08:25:52 +0000 Received: from smtp-zira.vinc17.net (128.119.75.86.rev.sfr.net [86.75.119.128]) by joooj.vinc17.net (Postfix) with ESMTPSA id 4460FF6; Thu, 10 Jun 2021 10:25:51 +0200 (CEST) Received: by zira.vinc17.org (Postfix, from userid 1000) id E7878C21B26; Thu, 10 Jun 2021 10:25:50 +0200 (CEST) Date: Thu, 10 Jun 2021 10:25:50 +0200 From: Vincent Lefevre To: zsh-workers@zsh.org Subject: [BUG] builtins with bad file descriptor can hang the shell Message-ID: <20210610082550.GB897070@zira.vinc17.org> Mail-Followup-To: zsh-workers@zsh.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Mailer-Info: https://www.vinc17.net/mutt/ User-Agent: Mutt/2.0.7+193 (0b2be236) vl-138295 (2021-06-07) X-Seq: 49051 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: The following first 3 commands are OK. The 4th one hangs zsh, with Ctrl-C and Ctrl-\ having no effect. This happens whether MULTIOS is set or not. zira% echo >&- > >(cat -n) 1 zira% echo >&2 > >(cat -n) 1 zira% /bin/echo >&3 > >(cat -n) zsh: 3: bad file descriptor zira% echo >&3 > >(cat -n) zsh: 3: bad file descriptor -- Vincent Lefèvre - Web: 100% accessible validated (X)HTML - Blog: Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)