From debbugs-submit-bounces@debbugs.gnu.org Tue Sep 01 17:25:56 2020 Received: (at submit) by debbugs.gnu.org; 1 Sep 2020 21:25:56 +0000 Received: from localhost ([127.0.0.1]:57532 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDDmu-00062x-FG for submit@debbugs.gnu.org; Tue, 01 Sep 2020 17:25:56 -0400 Received: from lists.gnu.org ([209.51.188.17]:53830) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDDmq-00062c-Kt for submit@debbugs.gnu.org; Tue, 01 Sep 2020 17:25:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56116) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDDmq-000639-EM for bug-coreutils@gnu.org; Tue, 01 Sep 2020 17:25:52 -0400 Received: from freefriends.org ([96.88.95.60]:45354) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDDmm-0003BH-O9 for bug-coreutils@gnu.org; Tue, 01 Sep 2020 17:25:50 -0400 X-Envelope-From: karl@freefriends.org X-Envelope-To: Received: from freefriends.org (freefriends.org [96.88.95.60]) by freefriends.org (8.14.7/8.14.7) with ESMTP id 081LPjQf028937 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 1 Sep 2020 15:25:46 -0600 Received: (from apache@localhost) by freefriends.org (8.14.7/8.14.7/Submit) id 081LPjE8028936; Tue, 1 Sep 2020 15:25:45 -0600 Date: Tue, 1 Sep 2020 15:25:45 -0600 Message-Id: <202009012125.081LPjE8028936@freefriends.org> From: Karl Berry To: bug-coreutils@gnu.org Subject: chgrp clears setgid even when group is not changed Received-SPF: pass client-ip=96.88.95.60; envelope-from=karl@freefriends.org; helo=freefriends.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/01 17:25:47 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) 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: -2.4 (--) Is it necessary for chgrp to clear setgid on directories even when the group is not actually changed? In my life at least, it is rather annoying. --thanks, karl. $ mkdir foo $ chmod g+s foo $ ls -ld foo drwxrwsr-x 2 karl root 6 Sep 1 10:36 foo/ $ chgrp root foo $ ls -ld foo drwxrwxr-x 2 karl root 6 Sep 1 10:36 foo/ From debbugs-submit-bounces@debbugs.gnu.org Tue Sep 01 18:24:30 2020 Received: (at 43162) by debbugs.gnu.org; 1 Sep 2020 22:24:30 +0000 Received: from localhost ([127.0.0.1]:57580 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDEha-0007WM-AE for submit@debbugs.gnu.org; Tue, 01 Sep 2020 18:24:30 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:59340) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDEhW-0007W6-3u for 43162@debbugs.gnu.org; Tue, 01 Sep 2020 18:24:29 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id C2B391600BA; Tue, 1 Sep 2020 15:24:19 -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 7pMNh1XWx5oM; Tue, 1 Sep 2020 15:24:19 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 0B6D61600C6; Tue, 1 Sep 2020 15:24:19 -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 sV4PAA_t4h8a; Tue, 1 Sep 2020 15:24:18 -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 C41CD1600BA; Tue, 1 Sep 2020 15:24:18 -0700 (PDT) Subject: Re: bug#43162: chgrp clears setgid even when group is not changed To: Karl Berry References: <202009012125.081LPjE8028936@freefriends.org> From: Paul Eggert Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUlOQkV5QWNtUUJFQURB 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cEcySVRaVUd0ckVqRVNsRTZEc2N4NzM0SEtkcjVPUklvY0wKVVVLRU9HZWlVNkRHaEdGZGI1 VHd1MFNuK3UxbVVQRE4wTSsrQ2RNdkNsSUU4a2xvNEc5MUVPSW11MVVwYjh4YwpPUFF3eGgx andxU3JVNVF3b05tU1llZ1FTSExwSVV1ckZ6MWlRVWgxdnBQWHpLaW5rV0VxdjRJcUExY2lM K0x5CnlTdUxrcDdNc0pwVlJNYldKQ05XT09TYmFING9EQko1ZEhNR2MzNXg1bW9zQ2s5MFBY a251RkREc1lIZkRvNXMKbWY5bG82WVh4N045Cj0zTGFJCi0tLS0tRU5EIFBHUCBQVUJMSUMg S0VZIEJMT0NLLS0tLS0K Organization: UCLA Computer Science Department Message-ID: <710fe0ef-b985-11a5-a93c-a285e5ed1b0c@cs.ucla.edu> Date: Tue, 1 Sep 2020 15:24:18 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <202009012125.081LPjE8028936@freefriends.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Debbugs-Envelope-To: 43162 Cc: 43162@debbugs.gnu.org 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: -5.4 (-----) On 9/1/20 2:25 PM, Karl Berry wrote: > Is it necessary for chgrp to clear setgid on directories even when the > group is not actually changed? In my life at least, it is rather > annoying. The chgrp command isn't doing that directly; it's merely invoking the fchownat syscall, and the syscall is clearing setgid. POSIX requires chgrp to behave like the chown syscall even if the file's group is already correct, and it appears that the syscall clears the setgid bit on your platform (a behavior that POSIX allows, and even requires for regular files). So partly this is a platform issue (I don't observe your problem on my Fedora 31 box, for example). I don't see an easy way to change chgrp without departing from POSIX, or perhaps adding a run-time option to the chown and chgrp commands. Not sure it's worth it. From debbugs-submit-bounces@debbugs.gnu.org Tue Sep 01 18:31:08 2020 Received: (at 43162) by debbugs.gnu.org; 1 Sep 2020 22:31:08 +0000 Received: from localhost ([127.0.0.1]:57585 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDEo0-0007ks-3R for submit@debbugs.gnu.org; Tue, 01 Sep 2020 18:31:08 -0400 Received: from freefriends.org ([96.88.95.60]:57244) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDEnt-0007kO-Gu for 43162@debbugs.gnu.org; Tue, 01 Sep 2020 18:31:06 -0400 X-Envelope-From: karl@freefriends.org Received: from freefriends.org (freefriends.org [96.88.95.60]) by freefriends.org (8.14.7/8.14.7) with ESMTP id 081MUrvC006623 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 1 Sep 2020 16:30:54 -0600 Received: (from karl@localhost) by freefriends.org (8.14.7/8.14.7/Submit) id 081MUrsT006620; Tue, 1 Sep 2020 16:30:53 -0600 Date: Tue, 1 Sep 2020 16:30:53 -0600 Message-Id: <202009012230.081MUrsT006620@freefriends.org> From: Karl Berry To: eggert@cs.ucla.edu Subject: Re: bug#43162: chgrp clears setgid even when group is not changed In-Reply-To: <710fe0ef-b985-11a5-a93c-a285e5ed1b0c@cs.ucla.edu> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 43162 Cc: 43162@debbugs.gnu.org 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 (---) So partly this is a platform issue I was on centos7. (I don't observe your problem on my Fedora 31 box, for example). Maybe there is hope for a future centos, then. adding a run-time option to the chown and chgrp commands. Not sure it's worth it. Agreed about not being worth it. Oh well. --thanks, karl. From debbugs-submit-bounces@debbugs.gnu.org Tue Sep 01 22:09:32 2020 Received: (at 43162-done) by debbugs.gnu.org; 2 Sep 2020 02:09:32 +0000 Received: from localhost ([127.0.0.1]:57818 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDIDL-0002fU-V2 for submit@debbugs.gnu.org; Tue, 01 Sep 2020 22:09:32 -0400 Received: from zimbra.cs.ucla.edu ([131.179.128.68]:33254) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kDIDK-0002fE-Dq for 43162-done@debbugs.gnu.org; Tue, 01 Sep 2020 22:09:31 -0400 Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 38A9F16007A; Tue, 1 Sep 2020 19:09:24 -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 0zoufJwKV5nY; Tue, 1 Sep 2020 19:09:23 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 82CC91600DA; Tue, 1 Sep 2020 19:09:23 -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 YQHeb85QBgEP; Tue, 1 Sep 2020 19:09:23 -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 5B47C16007A; Tue, 1 Sep 2020 19:09:23 -0700 (PDT) Subject: Re: bug#43162: chgrp clears setgid even when group is not changed To: Karl Berry References: <202009012230.081MUrsT006620@freefriends.org> From: Paul Eggert Autocrypt: addr=eggert@cs.ucla.edu; prefer-encrypt=mutual; keydata= LS0tLS1CRUdJTiBQR1AgUFVCTElDIEtFWSBCTE9DSy0tLS0tCgptUUlOQkV5QWNtUUJFQURB QXlIMnhvVHU3cHBHNUQzYThGTVpFb243NGRDdmM0K3ExWEEySjJ0QnkycHdhVHFmCmhweHhk R0E5Smo1MFVKM1BENGJTVUVnTjh0TFowc2FuNDdsNVhUQUZMaTI0NTZjaVNsNW04c0thSGxH ZHQ5WG0KQUF0bVhxZVpWSVlYL1VGUzk2ZkR6ZjR4aEVtbS95N0xiWUVQUWRVZHh1NDd4QTVL aFRZcDVibHRGM1dZRHoxWQpnZDdneDA3QXV3cDdpdzdlTnZub0RUQWxLQWw4S1lEWnpiRE5D UUdFYnBZM2VmWkl2UGRlSStGV1FONFcra2doCnkrUDZhdTZQcklJaFlyYWV1YTdYRGRiMkxT MWVuM1NzbUUzUWpxZlJxSS9BMnVlOEpNd3N2WGUvV0szOEV6czYKeDc0aVRhcUkzQUZINmls QWhEcXBNbmQvbXNTRVNORnQ3NkRpTzFaS1FNcjlhbVZQa25qZlBtSklTcWRoZ0IxRApsRWR3 MzRzUk9mNlY4bVp3MHhmcVQ2UEtFNDZMY0ZlZnpzMGtiZzRHT1JmOHZqRzJTZjF0azVlVThN Qml5Ti9iClowM2JLTmpOWU1wT0REUVF3dVA4NGtZTGtYMndCeHhNQWhCeHdiRFZadWR6eERa SjFDMlZYdWpDT0pWeHEya2wKakJNOUVUWXVVR3FkNzVBVzJMWHJMdzYrTXVJc0hGQVlBZ1Jy NytLY3dEZ0JBZndoUEJZWDM0blNTaUhsbUxDKwpLYUhMZUNMRjVaSTJ2S20zSEVlQ1R0bE9n N3haRU9OZ3d6TCtmZEtvK0Q2U29DOFJSeEpLczhhM3NWZkk0dDZDCm5yUXp2SmJCbjZneGRn Q3U1aTI5SjFRQ1lyQ1l2cWwyVXlGUEFLK2RvOTkvMWpPWFQ0bTI4MzZqMXdBUkFRQUIKdENC UVlYVnNJRVZuWjJWeWRDQThaV2RuWlhKMFFHTnpMblZqYkdFdVpXUjFQb2tDVlFRVEFRZ0FQ d0liQXdZTApDUWdIQXdJR0ZRZ0NDUW9MQkJZQ0F3RUNIZ0VDRjRBV0lRUitONUtwMkt6MzFq TzhGWWp0bCtrT1lxcCtOQVVDClh5Vzlsd1VKRks0THN3QUtDUkR0bCtrT1lxcCtOS05WRC85 SE1zSTE2MDZuMFV1VFhId0lUc3lPakFJOVNET1QKK0MzRFV2NnFsTTVCSDJuV0FNVGlJaXlB NXVnbHNKdjkzb2kydk50RmYvUS9tLzFjblpXZ25WbkV4a3lMSTRFTgpTZDF1QnZyMC9sQ1Nk UGxQME1nNkdXU3BYTXUreDB2ZFQwQWFaTk9URTBGblB1b2xkYzNYRDc2QzJxZzhzWC9pCmF4 WFRLSHk5UCtCbEFxL0NzNy9weERRMEV6U24wVVNaMkMwbDV2djRQTXBBL3BpY25TNks2MDlK dkRHYU9SbXcKWmVYSVpxUU5aVitaUXMrVVl0Vm9ndURUcWJ5M0lVWTFJOEJsWEhScHRhajlB TW40VW9oL0NxcFFsVm9qb3lXbApIcWFGbm5KQktlRjBodko5U0F5YWx3dXpBakc3dlFXMDdN WW5jYU9GbTB3b2lLYmc1SkxPOEY0U0JUSWt1TzBECkNmOW5MQWF5NlZzQjRyendkRWZSd2pQ TFlBbjdNUjNmdkhDRXpmcmtsZFRyYWlCTzFUMGllREs4MEk3c0xmNnAKTWVDWUkxOXBVbHgw L05STUdDZGRpRklRZGZ0aEtXWEdSUzVMQXM4andCZjhINkc1UFdpblByRUlhb21JUDIxaQp2 dWhRRDA3YllxOUlpSWRlbGpqVWRIY0dJMGkvQjRNNTZaYWE4RmYzOGluaU9sckRZQ21ZV1I0 ZENXWml1UWVaCjNPZ3FlUXM5YTZqVHZnZERHVm1SVnFZK2p6azhQbGFIZmNvazhST2hGY0hL a2NmaHVCaEwyNWhsUklzaFJET0UKc2tYcUt3bnpyYnFnYTNHWFpYZnNYQW9GYnpOaExkTHY5 QStMSkFZU2tYUDYvNXFkVHBFTFZHb3N5SDg4NFZkYgpCcGtHSTA0b1lWcXVsYmtDRFFSTWdI SmtBUkFBcG9YcnZ4UDNESWZqQ05PdFhVL1Bkd01TaEtkWC9SbFNzNVBmCnVuVjF3YktQOGhl clhIcnZRZEZWcUVDYVRTeG1saHpiazhYMFBrWTlnY1ZhVTJPNDlUM3FzT2QxY0hlRjUyWUYK R0V0MExoc0JlTWpnTlg1dVoxVjc2cjhneWVWbEZwV1diMFNJd0pVQkhyRFhleEY2N3VwZVJi MnZkSEJqWUROZQp5U24rMEI3Z0ZFcXZWbVp1K0xhZHVkRHA2a1FMamF0RnZIUUhVU0dOc2hC bmtrY2FUYmlJOVBzdDBHQ2MyYWl6Cm5CaVBQQTJXUXhBUGxQUmgzT0dUc241VEhBRG1ianFZ NkZFTUxhc1ZYOERTQ2JsTXZMd05lTy84U3h6aUJpZGgKcUxwSkNxZFFSV0hrdTVYeGdJa0dl S096NU9MRHZYSFdKeWFmckVZamprUzZBazZCNXo2c3ZLbGlDbFduakhRYwpqbFB6eW9GRmdL VEVmY3FEeENqNFJZMEQwRGd0RkQwTmZ5ZU9pZHJTQi9TelRlMmh3cnlRRTNycFNpcW8rMGNH CmR6aDR5QUhLWUorVXJYWjRwOTNaaGpHZktEMXhsck5ZRGxXeVc5UEdtYnZxRnVEbWlJQVFm OVdEL3d6RWZJQ2MKK0YrdURESSt1WWtSeFVGcDkyeWttZGhERUZnMXlqWXNVOGlHVTY5YUh5 dmhxMzZ6NHpjdHZicWhSTnpPV0IxYgpWSi9kSU1EdnNFeEdjWFFWRElUN3NETlh2MHdFM2pL U0twcDdOREcxb1hVWEwrMitTRjk5S2p5NzUzQWJRU0FtCkg2MTdmeUJOd2hKV3ZRWWcrbVV2 UHBpR090c2VzOUVYVUkzbFM0djBNRWFQRzQzZmxFczFVUisxcnBGUVdWSG8KMXkxT08rc0FF UUVBQVlrQ1BBUVlBUWdBSmdJYkRCWWhCSDQza3FuWXJQZldNN3dWaU8yWDZRNWlxbjQwQlFK ZgpKYjJ6QlFrVXJndlBBQW9KRU8yWDZRNWlxbjQwY25NUC8xN0NnVWtYVDlhSUpyaVBNOHdi Y2VZcmNsNytiZFlFCmY3OVNsd1NiYkhON1I0Q29JSkZPbE45Uy8zNHR5cEdWWXZwZ21DSkRZ RlRCeHlQTzkyaU1YRGdBNCtjV0h6dDUKVDFhWU85aHNLaGg3dkR0Sys2UHJvWkdjKzA4Z1VU WEhoYjk3aE1NUWhrbkpsbmZqcFNFQzllbTkwNkZVK0k5MwpUMWZUR3VwbkJhM2FXY0s4ak0w SmFCR2J5MmhHMVMzb2xhRExTVHRCSU5OQlltdnVXUjlNS09oaHFEcmxrNWN3CkZESkxoNU5y WHRlRVkwOFdBemNMekczcGtyWFBIa0ZlTVF0ZnFrMGpMZEdHdkdDM05DSWtxWXJkTGhpUnZH cHIKdTM4QzI2UkVuNWY0STB2R0UzVmZJWEhlOFRNQ05tUXV0MU50TXVVbXBESXkxYUx4R3p1 cHRVaG5PSk4vL3IrVgpqRFBvaTNMT3lTTllwaHFlL2RNdWJzZlVyNm9oUDQxbUtGODFGdXdJ NGFtcUp0cnFJTDJ5cWF4M2EwcWxmd0N4ClhmdGllcUpjdWVrWCtlQ1BEQ0tyWU1YUjBGWWd3 cEcySVRaVUd0ckVqRVNsRTZEc2N4NzM0SEtkcjVPUklvY0wKVVVLRU9HZWlVNkRHaEdGZGI1 VHd1MFNuK3UxbVVQRE4wTSsrQ2RNdkNsSUU4a2xvNEc5MUVPSW11MVVwYjh4YwpPUFF3eGgx andxU3JVNVF3b05tU1llZ1FTSExwSVV1ckZ6MWlRVWgxdnBQWHpLaW5rV0VxdjRJcUExY2lM K0x5CnlTdUxrcDdNc0pwVlJNYldKQ05XT09TYmFING9EQko1ZEhNR2MzNXg1bW9zQ2s5MFBY a251RkREc1lIZkRvNXMKbWY5bG82WVh4N045Cj0zTGFJCi0tLS0tRU5EIFBHUCBQVUJMSUMg S0VZIEJMT0NLLS0tLS0K Organization: UCLA Computer Science Department Message-ID: Date: Tue, 1 Sep 2020 19:09:23 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <202009012230.081MUrsT006620@freefriends.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Debbugs-Envelope-To: 43162-done Cc: 43162-done@debbugs.gnu.org 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: -5.4 (-----) On 9/1/20 3:30 PM, Karl Berry wrote: > I was on centos7. > > (I don't observe your problem on my Fedora 31 box, for example). > > Maybe there is hope for a future centos, then. Maybe. Or it could be a filesystem or mounting issue. My filesystem was ext4 mounted rw,relatime,seclabel, for what it's worth. Anyway, closing the bug report. From debbugs-submit-bounces@debbugs.gnu.org Sun Sep 20 19:07:12 2020 Received: (at 43162) by debbugs.gnu.org; 20 Sep 2020 23:07:12 +0000 Received: from localhost ([127.0.0.1]:52936 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kK8QK-0004mn-Ki for submit@debbugs.gnu.org; Sun, 20 Sep 2020 19:07:12 -0400 Received: from havoc.proulx.com ([96.88.95.61]:47832) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kK8QI-0004mZ-0o for 43162@debbugs.gnu.org; Sun, 20 Sep 2020 19:07:10 -0400 Received: from joseki.proulx.com (localhost [127.0.0.1]) by havoc.proulx.com (Postfix) with ESMTP id 3367C33E; Sun, 20 Sep 2020 17:07:04 -0600 (MDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=proulx.com; s=dkim2048; t=1600643224; bh=gyswDztNDbVT2HZEy/jrTcFkq73PVVYgJHJDa9ZibPY=; h=Date:From:To:Subject:References:In-Reply-To:From; b=r3my7K1uLalFkgy54SrgTYh2hj6qCweMkuVSikMLkUegOH0qixvyN2L3/vonVPe6D j7mHtKbnAbjLPPYrgN1HKnttMCQPlKmEfAjxG/DJyqesIKLy+n9GyMQEmyEY0RNHtA U7bm0ldzlfeZnYxd8jlGWfWavqRLgScnLUcw+MkzND/Q0TKaYMCAfPuMSikk/PFXPs OCMokHHqfA8jWASHphoZkykWe34OhloGHFZ9RSqLzxwoAwyQtckqMlhvVgT4J3HJjj Y1aTRI80pqeV7/jRXvQtEIViEdaMSyh2gjTFVwWOwAxL/PhzbhrrwI3JU8Giqdm7Iz Rux/f8TzMFH4A== Received: from hysteria.proulx.com (hysteria.proulx.com [192.168.230.119]) by joseki.proulx.com (Postfix) with ESMTP id 01AFB2115F; Sun, 20 Sep 2020 17:07:03 -0600 (MDT) Received: by hysteria.proulx.com (Postfix, from userid 1000) id AA6852DC9A; Sun, 20 Sep 2020 17:07:03 -0600 (MDT) Date: Sun, 20 Sep 2020 17:07:03 -0600 From: Bob Proulx To: 43162@debbugs.gnu.org, karl@freefriends.org Subject: Re: bug#43162: chgrp clears setgid even when group is not changed Message-ID: <20200920165523726757923@bob.proulx.com> References: <202009012230.081MUrsT006620@freefriends.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 43162 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: -1.0 (-) Paul Eggert wrote: > Karl Berry wrote: > > I was on centos7. > > > > (I don't observe your problem on my Fedora 31 box, for example). > > > > Maybe there is hope for a future centos, then. Just another few data points... I was able to recreate this issue on a CentOS 7 system running in a tmpfs filesystem. So that's pretty much pointing directly at the Linux kernel behavior independent of file system type. Meanwhile... I can also recreate this on a Debian system with a Linux 4.9 kernel in 9 Stretch. But not on 10 Buster Linux 4.19. But once again not on an earlier Linux 3.2 kernel. 3.2 good, 4.9 bad, 4.19 good. Therefore this seems to be a Linux behavior that was the desired way, then flipped to the annoying behavior way, then has flipped back again later. Apparently. Anyway just a few data points. Bob From unknown Sat Sep 20 18:57:56 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Mon, 19 Oct 2020 11:24:06 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator