From debbugs-submit-bounces@debbugs.gnu.org Fri Sep 18 19:16:03 2020 Received: (at submit) by debbugs.gnu.org; 18 Sep 2020 23:16:03 +0000 Received: from localhost ([127.0.0.1]:45323 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kJPbn-0001lz-Fv for submit@debbugs.gnu.org; Fri, 18 Sep 2020 19:16:03 -0400 Received: from lists.gnu.org ([209.51.188.17]:47356) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kJPbk-0001lM-RR for submit@debbugs.gnu.org; Fri, 18 Sep 2020 19:16:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48710) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kJPbk-0006iw-KZ for bug-coreutils@gnu.org; Fri, 18 Sep 2020 19:16:00 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:46589) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kJPbi-0008Ea-Lp for bug-coreutils@gnu.org; Fri, 18 Sep 2020 19:16:00 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 3E7755C00A8 for ; Fri, 18 Sep 2020 19:15:54 -0400 (EDT) Received: from imap36 ([10.202.2.86]) by compute4.internal (MEProxy); Fri, 18 Sep 2020 19:15:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dimebar.com; h= mime-version:message-id:date:from:to:subject:content-type; s= fm1; bh=bnwbqlOcfzALjIte89TOuGGoyTFmKBjP4d75vpDr4fw=; b=HftEosjG rXP+iyEqexWTHZQboFCR9+omDdm6mrwXPdLabuLELFzxfUxt40O0Fus6y+DC3dQq 2ZBb7USHPfV7tyU9/EYo3vDlxysS7F3AbtcRkON0mGo6KQEPBMfstwAAbkdgcJkv s/uq1a2pIyki4FIggR166O0bJ3V8rXRMRakBquGK5bcjltIqXuSnLT1Oyl+I/Qed /UN8H3GLEfgxXQQUwNzkbu9uKzH8hZJBpiXs07BKFZtk0u5J58ByGhK5QPsnj5Il z8wuXH2PzklgTjMuWiMsX1Tkx4iwkvDfc6vtHJWsvJSL6epx7nKuVcbNHAY6JTFQ QYeGpjfIepRq/w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:date:from:message-id :mime-version:subject:to:x-me-proxy:x-me-proxy:x-me-sender :x-me-sender:x-sasl-enc; s=fm3; bh=bnwbqlOcfzALjIte89TOuGGoyTFmK BjP4d75vpDr4fw=; b=Z8Poeuq5xfwhI10aW8OrdQq72OLHi5VsnQwbul7C+50zU pRL58od9mOa6pL/9G6Mw5SuvmXgLT0oCi00paefuqms47RHAFTJu3a12p7RnVnwL 2iSumcRAxSNgsoqd5MfpDtvCiieFsilQDGzGHKyBCQkh/Yna2wzaT272ssF5yJ7q 1jj3wU++9JR70kI30eURHMGwXEXe56U33LsUu+kD1NbHNWuZJ4EUc7CmzFG+0WE3 G+EZJgiWhsZg12LicfLFlpZemOpptEdRg6HFRQavHakl2F8mXuZbw0S0oFl7ReYO 1fVN9QN9HE74U/hCYbKIfueSYnfzOJdXH36A7+gmw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrtdejgddukecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhepofgfggfkfffhvffutgesthdtredtre ertdenucfhrhhomhepfdfrhhhilhhiphcutfhofihlrghnughsfdcuoehphhhrodgtohhr vghuthhilhhsseguihhmvggsrghrrdgtohhmqeenucggtffrrghtthgvrhhnpefhvddtie dufeejheeuhfefheekleeitdejgfejvdduhedtkeevleekvdevhfekgfenucevlhhushht vghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpehphhhrodgtohhrvghuth hilhhsseguihhmvggsrghrrdgtohhm X-ME-Proxy: Received: by mailuser.nyi.internal (Postfix, from userid 501) id EB250188025A; Fri, 18 Sep 2020 19:15:53 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.3.0-325-g8593b62-fm-20200916.004-g0f995879-bis Mime-Version: 1.0 Message-Id: <20c6c985-2502-407b-9896-313af039a4d3@www.fastmail.com> Date: Sat, 19 Sep 2020 00:15:33 +0100 From: "Philip Rowlands" To: bug-coreutils@gnu.org Subject: ls exit status on removed directory Content-Type: text/plain Received-SPF: none client-ip=66.111.4.25; envelope-from=phr+coreutils@dimebar.com; helo=out1-smtp.messagingengine.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/18 19:15:54 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) Steps to reproduce: $ mkdir /tmp/abc $ cd /tmp/abc $ rmdir /tmp/abc $ ls What happened: no output, successful exit status What was expected: no output, unsuccessful exit status ls tried to list the contents of . but failed to do so, at least on Linux: open(".", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3 getdents(3, 0x55e10c419cf0, 32768) = -1 ENOENT (No such file or directory) Although "stat ." and "ls -ld ." still work on the removed directory, should "ls ." report success even though the getdents syscall fails? From debbugs-submit-bounces@debbugs.gnu.org Sat Sep 19 08:50:42 2020 Received: (at 43497) by debbugs.gnu.org; 19 Sep 2020 12:50:43 +0000 Received: from localhost ([127.0.0.1]:45811 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kJcKA-0006qT-Mp for submit@debbugs.gnu.org; Sat, 19 Sep 2020 08:50:42 -0400 Received: from mail-ed1-f53.google.com ([209.85.208.53]:43807) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kJcK9-0006qG-0s for 43497@debbugs.gnu.org; Sat, 19 Sep 2020 08:50:41 -0400 Received: by mail-ed1-f53.google.com with SMTP id n13so8545720edo.10 for <43497@debbugs.gnu.org>; Sat, 19 Sep 2020 05:50:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=rWpx3qGL+lVWeGQ/PnNJQ/TgmsLYfYJbwJCnuHu2Mks=; b=Qjr63lqjYS6gKwitHzCXn17HaRBRr2c7fCvACp4G1uw8aYXF1h53DymvYfbFckxZ/D FjHzRzXAurNkUrS2e6ZEtabG0qjNHIOZv40uCIMzHOdXOWaoYSgB8BeueUctNxhQC/Ko ETo/8awNokALllVMucg0u23RhFabvNqPjrmeU7H6ywAnVCl72pDSFMSFw2njOKJkz6zB U4oxOwf1AD6u8lL9BVYUfX5dEdBdUhVhUVmbs5XwFKeJSY0od/KAasq3ZkJj50m2wuvZ QayqMYQm2Rb9ktQoiN3ixWFwDgItUHnfV7XSKPCnNmuYC8ezZido+d2L5B14s5MbCxvg c8oA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:references:from:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=rWpx3qGL+lVWeGQ/PnNJQ/TgmsLYfYJbwJCnuHu2Mks=; b=WUMxMioZBYjK09JZyvBqlKaYN/UtI6N1iqaTMENN6SshEfpTZJ+0bHkIpSUUV1lwTg 1avWQxivr5QsKdtZJciZqx7Jj8m+Tzy5RZulcldNs8++R33YKWekJPRuYMpYMGxtFhYo Hcu4HDUS6L2LdhCUsdGwDfPLR80zEgrjEF+cMkluHZCH2GsMe2ZPPQY6ZuSUZertB7K6 oCw/HHKseWdVrjXP3UzwGyeRDXP5LzC/LDWrKlf0wCK2Hdq0H2+UwOc8wUZWfNUGb/Mw UwXrRWU/WxDAlyeNEXxZia0GWmB5gl3QRzOLNpVXZ6R7Onrbj1SCVhOVlRP+PUJOrrJW JqRQ== X-Gm-Message-State: AOAM532pQJtAIjHHTh0lGUuCGoNv66NswTaW69U9N+p0R1wlyQFguS7u hv/Zr7AW5C6+OoIRoP4K5G1F70k8vKw/1Q== X-Google-Smtp-Source: ABdhPJy9W0+bGIff65MvJgSXko5qL1+P6Nqv8U0zTnD4q7YL+MFOLJy/U1BGhAPHapADPeT7Yihr7Q== X-Received: by 2002:a50:cd51:: with SMTP id d17mr14284975edj.93.1600519834697; Sat, 19 Sep 2020 05:50:34 -0700 (PDT) Received: from localhost.localdomain (86-42-14-227-dynamic.agg2.lod.rsl-rtd.eircom.net. [86.42.14.227]) by smtp.googlemail.com with ESMTPSA id m10sm4496885edf.11.2020.09.19.05.50.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 19 Sep 2020 05:50:34 -0700 (PDT) Subject: Re: bug#43497: ls exit status on removed directory To: Philip Rowlands , 43497@debbugs.gnu.org References: <20c6c985-2502-407b-9896-313af039a4d3@www.fastmail.com> From: =?UTF-8?Q?P=c3=a1draig_Brady?= Message-ID: <9c6aeac4-b021-ab3f-d102-12e10909e117@draigBrady.com> Date: Sat, 19 Sep 2020 13:50:33 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:80.0) Gecko/20100101 Thunderbird/80.0 MIME-Version: 1.0 In-Reply-To: <20c6c985-2502-407b-9896-313af039a4d3@www.fastmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: 0.5 (/) X-Debbugs-Envelope-To: 43497 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On 19/09/2020 00:15, Philip Rowlands wrote: > Steps to reproduce: > > $ mkdir /tmp/abc > $ cd /tmp/abc > $ rmdir /tmp/abc > $ ls > > What happened: > no output, successful exit status > > What was expected: > no output, unsuccessful exit status > > ls tried to list the contents of . but failed to do so, at least on Linux: > open(".", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3 > getdents(3, 0x55e10c419cf0, 32768) = -1 ENOENT (No such file or directory) > > Although "stat ." and "ls -ld ." still work on the removed directory, should "ls ." report success even though the getdents syscall fails? What you expect was released as part of v8.32: https://git.sv.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=v8.31-88-g05a99f7d7 though current trunk (and Fedora at least), have reverted to the original behavior: https://git.sv.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=v8.32-2-g10fcb97bd cheers, Pádraig From debbugs-submit-bounces@debbugs.gnu.org Mon Sep 21 04:52:28 2020 Received: (at 43497) by debbugs.gnu.org; 21 Sep 2020 08:52:28 +0000 Received: from localhost ([127.0.0.1]:53432 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kKHYh-00020e-SV for submit@debbugs.gnu.org; Mon, 21 Sep 2020 04:52:28 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:51260) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kKHYc-00020M-RN for 43497@debbugs.gnu.org; Mon, 21 Sep 2020 04:52:26 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 823111600DB; Mon, 21 Sep 2020 01:52:15 -0700 (PDT) Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 1NGug-4s_sLs; Mon, 21 Sep 2020 01:52:14 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 860581600E2; Mon, 21 Sep 2020 01:52:14 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id MF66yPhS9cp9; Mon, 21 Sep 2020 01:52:14 -0700 (PDT) Received: from [192.168.1.9] (cpe-75-82-69-226.socal.res.rr.com [75.82.69.226]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 5F7771600DB; Mon, 21 Sep 2020 01:52:14 -0700 (PDT) Subject: Re: bug#43497: ls exit status on removed directory To: Philip Rowlands References: <20c6c985-2502-407b-9896-313af039a4d3@www.fastmail.com> From: Paul Eggert Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= 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debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) On 9/18/20 4:15 PM, Philip Rowlands wrote: > $ mkdir /tmp/abc > $ cd /tmp/abc > $ rmdir /tmp/abc > $ ls > > What happened: > no output, successful exit status > > What was expected: > no output, unsuccessful exit status POSIX says that the rmdir command is supposed to behave like the rmdir syscall. For the syscall, POSIX allows either of the two behaviors you mention, as says that if the rmdir syscall's argument is "the current working directory of any process, it is unspecified whether the function succeeds, or whether it shall fail and set errno to [EBUSY]". The Linux kernel rmdir syscall succeeds, so coreutils rmdir succeeds. > ls tried to list the contents of . but failed to do so, at least on Linux: > open(".", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3 > getdents(3, 0x55e10c419cf0, 32768) = -1 ENOENT (No such file or directory) ls doesn't use getdents directly; it uses the readdir function of the GNU C library, which specifically tests for this situation and sets errno to 0, with this comment at : /* On some systems getdents fails with ENOENT when the open directory has been rmdir'd already. POSIX.1 requires that we treat this condition like normal EOF. */ It's not clear to me that this comment is correct for current POSIX, but anyway this is a matter for the GNU C library not for coreutils ls, so if you think there's a bug there I suggest filing a glibc bug report .