From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 63261D1359C for ; Mon, 28 Oct 2024 12:27:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t5Opo-0002Qo-Sl; Mon, 28 Oct 2024 08:27:01 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t5Opk-0002Nh-Ml for qemu-devel@nongnu.org; Mon, 28 Oct 2024 08:26:56 -0400 Received: from mail-wr1-x435.google.com ([2a00:1450:4864:20::435]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1t5Opj-0003k0-4X for qemu-devel@nongnu.org; Mon, 28 Oct 2024 08:26:56 -0400 Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-37d5689eea8so2870984f8f.1 for ; Mon, 28 Oct 2024 05:26:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1730118412; x=1730723212; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=uBs5xDk4TGYtQdob6XEzJ6YA3qTpXTKOlDd65gE5D2c=; b=Tvyk0yUlsbL5pXhoBijIdH+bXAwl9Zu+APaMAT77A/OZF5Zlcg283agrE6i/haRYGu 4ad2hPbqS6X4r+y8pxWZpJ9428S/IlN/N2iZpe98XMhgtg7UMX5GP/1nBJkio7zVzEhr 6p9pbsdWKUUx0RzsQrxXqlrQkxoStflpTcYRr652Z3wE0S4WUzgYnqceacib1SMPcodq FWDy5XGyKT/em0eoaDN3oyHOI7+sbtmOJiEUrbZQHao+sZu6jkEfDXit2On7ncipdeKf 5fBCTm3/qsbYlMtU8/3NuNOM0DiIzC8yK11TqgEeK/tAFa2xBEKu3wwOq3Klkzgt+7Db ex6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730118412; x=1730723212; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=uBs5xDk4TGYtQdob6XEzJ6YA3qTpXTKOlDd65gE5D2c=; b=TZI3T4oLHUJrLjVIdbh74J1JYT1tbM9OsTzcJgAOD5hMURL32L0wvmRgOG1G+PMDN3 g/nJ/Pp5dXSkB1txvRu7TrEEPs37QCqO3RmMXdPBW0oIJBmoSlJ4sFYOdqHP4QOdvM7b PcoUcNbP45DyfJP4eQpuaWq25f9vdYyO0x1xlieBUxbOQ06QU1jTudztPcWkNW2UUauX swLUv/mepfrjupTyrXT0c8vUfdyWhmPjveHUggcbEPKsxg2ivSYcZks+TEQgTE/38haN 6a4ulexOXELch0gPjoun+cKICzxBJiBIaJz7zusKYxk0Ty1qXsLazm4nK+RjfbWB/RPI k6iw== X-Forwarded-Encrypted: i=1; AJvYcCUmf6lSG/KISXRDUtL43C5+n5CfDekKLxU2J0zL80CE8Cm4lQeD8pQQhcs9noyB8Edh3Zivp9MlLELB@nongnu.org X-Gm-Message-State: AOJu0YxFhzZryHpSu3auTymOhN0ss7X4j34Xe5ScQFHEM8CDRdH4ngEh mNmpYK7d9JtmUA+chz3xtn0yMfSmpmGhCqBTChgBbv9KziShp+6bplNo8UWRjKs= X-Google-Smtp-Source: AGHT+IHo4Z1T/Ivd1LWi11KJ+CWGtOEwlMrnE3rzvTwrnhxRGobBoZzu9ndMxIi8T9oztwdzSrmg0Q== X-Received: by 2002:adf:e6cc:0:b0:374:c640:8596 with SMTP id ffacd0b85a97d-38061172331mr5561969f8f.32.1730118411872; Mon, 28 Oct 2024 05:26:51 -0700 (PDT) Received: from draig.lan ([85.9.250.243]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38058bac1cfsm9353511f8f.109.2024.10.28.05.26.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Oct 2024 05:26:51 -0700 (PDT) Received: from draig (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id 702B75F8C4; Mon, 28 Oct 2024 12:26:50 +0000 (GMT) From: =?utf-8?Q?Alex_Benn=C3=A9e?= To: Daniel P. =?utf-8?Q?Berrang=C3=A9?= Cc: Michael Tokarev , Paolo Bonzini , qemu-devel@nongnu.org, manos.pitsidianakis@linaro.org, zhao1.liu@intel.com, junjie.mao@hotmail.com Subject: Re: [PATCH v3 00/23] rust: fix CI + allow older versions of rustc and bindgen In-Reply-To: ("Daniel P. =?utf-8?Q?Berrang?= =?utf-8?Q?=C3=A9=22's?= message of "Mon, 28 Oct 2024 09:21:08 +0000") References: <20241025160209.194307-1-pbonzini@redhat.com> <95b07b6b-0980-4a32-86fd-602985750104@tls.msk.ru> User-Agent: mu4e 1.12.6; emacs 29.4 Date: Mon, 28 Oct 2024 12:26:50 +0000 Message-ID: <87h68w8lbp.fsf@draig.linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::435; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x435.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Daniel P. Berrang=C3=A9 writes: > On Sun, Oct 27, 2024 at 10:01:26AM +0300, Michael Tokarev wrote: >> I think this is the wrong direction (ie, backwards). >>=20 >> Sacrificing current code to be compatible with old stuff feels wrong. >> Especially for really old, like rustc in debian bookworm. >>=20 >> bookworm has rustc-web (and a few related packages) which is regular >> rustc version 1.78, just renamed. It is regular bookworm, not backports. >> It has some packages disabled (compared to regular rust) and is a hack, >> but it exists and can be used for now (dunno if it is sufficient for >> qemu though). >>=20 >> Also debian has backports mechanism, which also can be used for qemu - >> I can try back-porting regular rust (and llvm) to bookworm. >>=20 >> I think this is a better way (at least a way forward) than trying to >> move backwards. >>=20 >> But generally, what is the reason to support debian stable? I understand >> the CI thing, - we need a way to test stuff. For this, I'd say a better >> alternative would be to target debian testing (currently trixie), not >> debian stable. > > The stable distros are what our community of contributors are usually > using, as few people want non-released bleeding edge distros as their > primary development platform. > > Custom installing latest upstream pieces is not a user friendly position > to take. Occassionally it is unavoidable, but it is something to be > avoided wherever practical. At least rustup makes this reasonably easy for the rust bits. We do rely on the excellent Debian backports for getting QEMU quickly into testing images but I was assuming we would have trixie before --enable-rust became mandatory so I'm not too worried if bookworm is the outlier for old versions. > > With regards, > Daniel --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro