From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id QJUKAmiqeWB1ngAAgWs5BA (envelope-from ) for ; Fri, 16 Apr 2021 17:16:56 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id CEasN2eqeWCsMgAAB5/wlQ (envelope-from ) for ; Fri, 16 Apr 2021 15:16:55 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 646F219F8D for ; Fri, 16 Apr 2021 17:16:55 +0200 (CEST) Received: from localhost ([::1]:35840 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXQDF-0006HT-Jl for larch@yhetil.org; Fri, 16 Apr 2021 11:16:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57454) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lXQBT-0006H5-CC for bug-guix@gnu.org; Fri, 16 Apr 2021 11:15:09 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:58116) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lXQBS-00012P-Ja for bug-guix@gnu.org; Fri, 16 Apr 2021 11:15:03 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lXQBS-0001zZ-Fa for bug-guix@gnu.org; Fri, 16 Apr 2021 11:15:02 -0400 X-Loop: help-debbugs@gnu.org Subject: bug#36508: GDM files have incorrect owner after temporarily removing service Resent-From: Ludovic =?UTF-8?Q?Court=C3=A8s?= Original-Sender: "Debbugs-submit" Resent-CC: bug-guix@gnu.org Resent-Date: Fri, 16 Apr 2021 15:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36508 X-GNU-PR-Package: guix X-GNU-PR-Keywords: To: Mark H Weaver Received: via spool by 36508-submit@debbugs.gnu.org id=B36508.16185860627579 (code B ref 36508); Fri, 16 Apr 2021 15:15:02 +0000 Received: (at 36508) by debbugs.gnu.org; 16 Apr 2021 15:14:22 +0000 Received: from localhost ([127.0.0.1]:41424 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lXQAo-0001yA-8f for submit@debbugs.gnu.org; Fri, 16 Apr 2021 11:14:22 -0400 Received: from eggs.gnu.org ([209.51.188.92]:44690) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lXQAm-0001xr-Jr for 36508@debbugs.gnu.org; Fri, 16 Apr 2021 11:14:20 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:41997) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXQAg-0000WS-EO; Fri, 16 Apr 2021 11:14:14 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=39090 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lXQAf-0001de-W1; Fri, 16 Apr 2021 11:14:14 -0400 From: Ludovic =?UTF-8?Q?Court=C3=A8s?= References: <20190705083620.lbzu7a33awbymh3d@cf0> <1576552162.14721.1618320275616@office.mailbox.org> <87czuxsya5.fsf@netris.org> <875z0pgnqn.fsf@gnu.org> <87lf9jiems.fsf@netris.org> <878s5j8ga7.fsf@gnu.org> <87wnt3gndy.fsf@netris.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 27 Germinal an 229 de la =?UTF-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Fri, 16 Apr 2021 17:14:11 +0200 In-Reply-To: <87wnt3gndy.fsf@netris.org> (Mark H. Weaver's message of "Thu, 15 Apr 2021 19:04:30 -0400") Message-ID: <871rba5kjg.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Brendan Tildesley , 36508@debbugs.gnu.org Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1618586215; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding:resent-cc: resent-from:resent-sender:resent-message-id:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=0dKioycCaUOEnWEQ70E3WaT6a4ekIngD/4szkKm6E7s=; b=f7s422i0tKNaQMLBGOnR+c81R4C47a3/GfRTdujqviidMCi++h+kIdgvs97AShjoLeuGJk XuHF3HaBojo0inZ4rrpID9mhZcNArf8A8C2qvu6KEEck34gtxSsBUj5jl44PqZX6TUM5Ac BGdVMJsugI/1B+zTeBrnTfZO/XGQYz8eirlVaIswDvDAJRxPn8AkXahRx3ZHTZqpzi9oWx 2zzmC/Q5W0ehngBCI400VbioL8xlt4m0BHpOa3INj3u+dx8Z6ntgccyjrxjTBCocwxLT+8 iJnyVyZdorLmEVq/U5Dm6PLEDdea/h68u+DNEX3DlCvZIelU3ZuPjhbTPEQwjg== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1618586215; a=rsa-sha256; cv=none; b=V00pE4D0EQBmFO768s6QJZQXWehtD747iIGiDTPBeY6drW6tRZ2G9yJ6urken2Llr5i80N aLf0FXtqsYTeKmNW3dgBSRokO1UqE+rqTAg1BZBcL3HsDjgK8IAASgYMYlx7S7jf7pgWHu 2zK8tQoWLHa/gOAi+TlbCjAmmkjtzSrWpj+5WmquxzTEzzKZ9q2qr/r4Yx9XKl03iyUlft GTuZf0dqcIoB2keh+o7RyzE5bJctOCcb+p/vE/XFNUYiHhDZ1KJNhn3s4NhceBtCnspB0V 9+ANqGZvpbPIwPU6woBMKCQELzIV0q0RfGIHwUDRx2RbU2uw8HrfK6jKIgDXnw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Spam-Score: -3.55 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Queue-Id: 646F219F8D X-Spam-Score: -3.55 X-Migadu-Scanner: scn0.migadu.com X-TUID: c2Ge7nXwP/pf Hi Mark, Mark H Weaver skribis: > This particular issue is easily addressed. It's easy enough to find a > function from 31-hash values to 32-bit IDs that's injective and avoids > any chosen subset of special IDs, as long as there are fewer than 2^31 > special IDs. > > Simply adding 65536 (or even 2^31) to the hash value would be one easy > option. > > What do you think? Yes, but these special IDs are just examples of things that could go wrong. I don=E2=80=99t know, maybe I=E2=80=99m just overly cautious; we ha= ve to try to get a better understanding of how things will go! Thanks, Ludo=E2=80=99.