From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id MDRPBsDMmGIoJQEAbAwnHQ (envelope-from ) for ; Thu, 02 Jun 2022 16:44:16 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id mPQ6BsDMmGLUDAAAauVa8A (envelope-from ) for ; Thu, 02 Jun 2022 16:44:16 +0200 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 E705A38D58 for ; Thu, 2 Jun 2022 16:44:15 +0200 (CEST) Received: from localhost ([::1]:49558 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nwm3a-0000T1-FR for larch@yhetil.org; Thu, 02 Jun 2022 10:44:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59818) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nwm2u-0000Qe-VT for guix-devel@gnu.org; Thu, 02 Jun 2022 10:43:32 -0400 Received: from xavier.telenet-ops.be ([2a02:1800:120:4::f00:14]:45972) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nwm2s-0007pi-S6 for guix-devel@gnu.org; Thu, 02 Jun 2022 10:43:32 -0400 Received: from ptr-bvsjgyhxw7psv60dyze.18120a2.ip6.access.telenet.be ([IPv6:2a02:1811:8c09:9d00:3c5f:2eff:feb0:ba5a]) by xavier.telenet-ops.be with bizsmtp id eEjS2702k4UW6Th01EjSqM; Thu, 02 Jun 2022 16:43:26 +0200 Message-ID: Subject: Re: A corner case of broken reproducibility From: Maxime Devos To: Ludovic =?ISO-8859-1?Q?Court=E8s?= Cc: Felix Lechner , Guix Devel Date: Thu, 02 Jun 2022 16:43:26 +0200 In-Reply-To: <87ilpjnofu.fsf@gnu.org> References: <87leuj108h.fsf@gnu.org> <31d13a6014b14c886686bca833d926604ce3379d.camel@telenet.be> <87bkvcuynd.fsf@gnu.org> <91ce7e991c639c891516bad7a125937070d97efd.camel@telenet.be> <87ilpjnofu.fsf@gnu.org> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-+l30l4CYbkeiTuBW5JaM" User-Agent: Evolution 3.38.3-1 MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telenet.be; s=r22; t=1654181006; bh=nVXGB3Ex1Bn9Rrq+22ghjWQpKKOC2saO3SGS3ghlllM=; h=Subject:From:To:Cc:Date:In-Reply-To:References; b=BO9c19oRvfCB8xuYo/j0A7LmCFe/ncu/eKO4V/537+GX6THZhcRmHlbi8IshTW+Ec fYuEncdMliZFrZhRYL3dVwe0v3wI2Ar9vj/7KVAmYjV6Oefmn9PKYSLsoBNjb1MCWY 2G7Jsm5hPUOYJfsIx7/7dZLapaV/a6RmWe+Hlhignvz8VFwNmlQRI0r4eHIKplGJQ5 arkHDn3QV6q2xsUWW6wPIHlQ+7KJBrj0o6T1N3BS3p6nhJpEuq9dqBfiisD0tO5Yo2 SsY17zrMsLtwnau1AzObDXkDDCdSvYuPVJCmegCNaddGUOOlPhw+QJwlqQvSwKMRh1 NDS1aQ5krA10A== Received-SPF: pass client-ip=2a02:1800:120:4::f00:14; envelope-from=maximedevos@telenet.be; helo=xavier.telenet-ops.be 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, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-To: larch@yhetil.org X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1654181055; 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:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=nVXGB3Ex1Bn9Rrq+22ghjWQpKKOC2saO3SGS3ghlllM=; b=n66+4O4WkqpEC4Yng1ujbCDlNhwOxSeiuQU4tOFttyS0+mqDlTsrtQLfjr2pqI+VxPilOM DHMNfh8XJiptzxoDi9TDyDzSjlNnLS/RqLZChm8myr9Buo50A1UJv2IQoXYIFR75OAqREy H/Ytr4bvwLpwgxWtAahgz3neTXFoEhho1NaV3NTXO2Rzs/sUq4/QBUU2UynWqWeiII8Yxb ok6kJ2Zill9rid1k2xql/iZPeh714mBb/9IayWHAlaSlz+e6ULYFeV9+A8prGC8XgkmJFL TI+xpG8a7Ourg+Ux/nddGMAryVl79phzdhUNFgMg2iyEozsCuckPFlCmUG7zSw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1654181055; a=rsa-sha256; cv=none; b=k9uRbaP0+1n36bXrGdmRi+Fpe1wNiiCqxYU+e6WB3mS+M4K1pmlDeJrjFlryZ5+R4SmE59 lPWyW75uDB+3oRJvmVtKpXni0KLapL706s7hyGWcjUK9fwggzbsTlokLDBiw0zC6kLt5xG VZBTBp0FiLIaXF1eErfEIo7UDSMCb/+Zt1wY/OiQzOJUGdfGMfEvnpHoQhkTs0N57YRto+ XgHvl1nAo83btuQRW3YHPvXiQJfq3h8e9lU33qUB4yiym0M4f09yWSyqe0hDmoyMr2Cfll +XkE6Y9JaZthccKm76bpkZC+/tSqiw2BixWZrWB7NtUhENHQmsjBTPAJJwAuLg== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=telenet.be header.s=r22 header.b=BO9c19oR; dmarc=pass (policy=none) header.from=telenet.be; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -11.63 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=telenet.be header.s=r22 header.b=BO9c19oR; dmarc=pass (policy=none) header.from=telenet.be; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: E705A38D58 X-Spam-Score: -11.63 X-Migadu-Scanner: scn0.migadu.com X-TUID: ATOR9rQJ4yYK --=-+l30l4CYbkeiTuBW5JaM Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Ludovic Court=C3=A8s schreef op do 02-06-2022 om 16:13 [+0200]: > I=E2=80=99m not sure what the conclusion of those bug reports were, but (= gnu > build accounts) doesn=E2=80=99t reuse UIDs: you can see that in > =E2=80=98user+group-databases=E2=80=99, which reads the initial /etc/{pas= swd,group}, and > passes them to =E2=80=98allocate-passwd=E2=80=99 and =E2=80=98allocate-gr= oup=E2=80=99, which =E2=80=9Creserve=E2=80=9D > those initial UIDs/GIDs. >=20 > This is exercised in tests/accounts.scm (search for =E2=80=9Cno reuse=E2= =80=9D). Right, I guess I misremembered or misinterpreted the bug reports. Or someone added and removed an account 900 times. > There could be bugs of course, but in that case we should fix them. :-) So in theory there might still be a bug (or at least a limitation), albeit unlikely to encounter in practice. Greetings, Maxime. --=-+l30l4CYbkeiTuBW5JaM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iI0EABYKADUWIQTB8z7iDFKP233XAR9J4+4iGRcl7gUCYpjMjhccbWF4aW1lZGV2 b3NAdGVsZW5ldC5iZQAKCRBJ4+4iGRcl7naSAQDvlIWLEOkWwTWaMdaDe8Spo28d YNOlCeGTnpcU8JjPTwEAuEkC2y24Urg6h04a5KIglP4ABUzPeEx0gYjzdxU8YgE= =cr1n -----END PGP SIGNATURE----- --=-+l30l4CYbkeiTuBW5JaM--