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Fri, 20 Dec 2024 23:07:21 +0100 (CET) Received: from int-mx009.mykolab.com (unknown [10.9.13.9]) by mx.kolabnow.com (Postfix) with ESMTPS id 1E5A130005A2; Fri, 20 Dec 2024 23:07:17 +0100 (CET) Received: from ext-subm010.mykolab.com (unknown [10.9.6.10]) by int-mx009.mykolab.com (Postfix) with ESMTPS id 8D1F220D3284; Fri, 20 Dec 2024 23:07:17 +0100 (CET) From: Thiago Jung Bauermann To: Greg Hogan Cc: Suhail Singh , Ludovic =?utf-8?Q?Court?= =?utf-8?Q?=C3=A8s?= , Maxim Cournoyer , Ricardo Wurmus , guix-devel@gnu.org, guix-maintainers@gnu.org, Cayetano Santos , Efraim Flashner Subject: Re: On the quest for a new release model In-Reply-To: (Greg Hogan's message of "Thu, 19 Dec 2024 12:56:25 -0500") References: <87a5d0dlm8.fsf@inventati.org> <87ttb7rds6.fsf@elephly.net> <87pllskibl.fsf@elephly.net> <87o71c1yuf.fsf@gmail.com> <87bjxbu55j.fsf@gmail.com> <87h671j5s6.fsf@gnu.org> <87msgssxse.fsf@gmail.com> <87ikrgsxa2.fsf@gmail.com> Date: Fri, 20 Dec 2024 19:07:13 -0300 Message-ID: <86frmigga6.fsf@kolabnow.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=212.103.80.155; envelope-from=bauermann@kolabnow.com; helo=mx.kolabnow.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_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Migadu-Queue-Id: 17B7C51DB3 X-Migadu-Scanner: mx13.migadu.com X-Migadu-Spam-Score: -2.91 X-Spam-Score: -2.91 X-TUID: /69QjFvDHzGc Greg Hogan writes: > On Wed, Dec 18, 2024 at 12:43=E2=80=AFPM Suhail Singh wrote: >> >> Suhail Singh writes: >> >> > The issue, as I see it, is the time commitment required from the >> > release-team. >> >> Correction, the issues (IMO) are (in no particular order): >> 1. the timespan (several weeks) >> 2. uncertainty around total effort >> 3. amount of manual effort involved >> >> It's unclear which of the three above is the rate-limiting-step. > > There is also access to hardware. From doc/release.org: > > "Steps #2 and #3 require you to have offloading set up so you can > build for all the supported architectures. For instance, if you=E2=80=99= re > running this on an x86_64 machine, you should have ~armhf-linux~, > ~aarch64-linux~ and ~powerpc64le-linux~ machines in your > =3D/etc/guix/machines.scm=3D. Transparent emulation via QEMU has shown > limits (such as causing test suite failures); real hardware is a > must." In my experience, QEMU system emulation works better than user-mode emulation so an alternative that I believe would work (though it would be slow) would be to set up QEMU VMs for armhf, aarch64 and powerpc64le (virt-manager is a convenient GUI to set these things up) and use them for offloading. > Can the armhf release artifacts be built on aarch64? That fails for > some packages but might work for releases. Not all aarch64 processors can run armhf code, but many can. This can be seen in the "CPU op-mode(s)" field of lscpu. E.g.: $ lscpu Architecture: aarch64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 32 On-line CPU(s) list: 0-31 =E2=8B=AE -- Thiago