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Re: Architecture baseline for Forky

Cross-posted to 2 groups.

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[dropping debian-ports since I saw a request for that in the thread]

On Sun, Oct 26, 2025 at 01:21:29PM +0100, Bastian Blank wrote:
>## amd64 (and i386)
>
>* x86-64-v2: Supported since around 2008[^x86]. Used in RedHat 9[^redhat9x86].
>* x86-64-v3: Supported since around 2013-2015[^x86]. Used in RedHat
>  10[^redhat10].
>
>I propose to use the x86-64-v2 baseline in Forky.  It gives us more then the 15
>years and everyone else already switched to it or even a newer variant.
>Factoring in a possible LTS for Trixie, this means that x86-64-v1 will stop
>being supported by Debian in 2030.

CERN spoke at DebConf [1] and indicated that ~47% of their accelerator 
control fleet runs x86-64-v1, which due to a cascading series of 
replacement costs meant that they estimated a budget of about €7M to 
migrate from CentOS 7 to CentOS Streams 9.  As a result they chose to 
switch to Debian instead, and they said that their plan A was to use 
trixie and upgrade to forky in 2030.  If I understood them correctly, 
they did say (in the Q&A) that there was a plan to upgrade to at least 
x86-64-v2 in the 2034 long shutdown, but that it was still a complex 
project with the possibility of being derailed by operational issues.

Has anyone consulted with them about how this would affect their plans?  
They're a pretty significant organization and I know a lot of Debian 
developers would like to keep them being able to use Debian.

[1] https://meetings-archive.debian.net/pub/debian-meetings/2025/DebConf25/debconf25-605-approaching-the-speed-of-light-with-debian-debians-role-in-the-worlds-largest-particle-accelerator.av1.webm

-- 
Colin Watson (he/him)                              [cjwatson@debian.org]

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Thread

Architecture baseline for Forky Bastian Blank <waldi@debian.org> - 2025-10-26 13:40 +0100
  Re: Architecture baseline for Forky John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> - 2025-10-26 14:20 +0100
    Re: Architecture baseline for Forky Bastian Blank <waldi@debian.org> - 2025-10-27 08:40 +0100
  Re: Architecture baseline for Forky Tony Rodriguez <unixpro1970@gmail.com> - 2025-10-26 19:40 +0100
    Re: Architecture baseline for Forky John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> - 2025-10-26 20:30 +0100
    Re: Architecture baseline for Forky Adrian Bunk <bunk@debian.org> - 2025-10-27 12:50 +0100
      Re: Architecture baseline for Forky Martin <debacle@debian.org> - 2025-10-27 18:10 +0100
      Re: Architecture baseline for Forky "Arnd Bergmann" <arnd@arndb.de> - 2025-10-27 22:40 +0100
        Re: Architecture baseline for Forky Adrian Bunk <bunk@debian.org> - 2025-10-29 09:00 +0100
          Re: Architecture baseline for Forky Peter Green <plugwash@debian.org> - 2025-10-30 07:00 +0100
            Re: Architecture baseline for Forky Peter Green <plugwash@debian.org> - 2025-10-30 10:10 +0100
              Re: Architecture baseline for Forky "Arnd Bergmann" <arnd@arndb.de> - 2025-10-30 10:10 +0100
          Re: Architecture baseline for Forky Adrian Bunk <bunk@debian.org> - 2025-10-30 15:30 +0100
    Re: Architecture baseline for Forky Rob Landley <rob@landley.net> - 2025-10-27 21:40 +0100
  Re: Architecture baseline for Forky Adrian Bunk <bunk@debian.org> - 2025-10-27 11:20 +0100
  Re: Architecture baseline for Forky Colin Watson <cjwatson@debian.org> - 2025-10-27 19:30 +0100
    Re: Architecture baseline for Forky "Nikos Tsipinakis" <nikos@tsipinakis.com> - 2025-10-30 14:40 +0100
  Re: Architecture baseline for Forky Milan Kupcevic <milan@debian.org> - 2025-10-27 22:40 +0100
    Re: Architecture baseline for Forky Bastian Blank <waldi@debian.org> - 2025-10-27 23:40 +0100
      Re: Architecture baseline for Forky Marc Haber <mh+debian-release@zugschlus.de> - 2025-10-28 10:10 +0100
    Planned obsolescence ? (was: Re: Architecture baseline for Forky) Romain Dolbeau <romain@dolbeau.org> - 2025-10-28 10:00 +0100
      Re: Planned obsolescence ? (OpenBSD) Paul Tagliamonte <paultag@debian.org> - 2025-11-02 23:30 +0100
      Re: Planned obsolescence ? (*BSD, Rust) David Starner <prosfilaes@gmail.com> - 2025-11-04 00:20 +0100
  Re: Architecture baseline for Forky Rob Landley <rob@landley.net> - 2025-12-05 00:20 +0100
  R: Re: Architecture baseline for Forky Federico Vaga <federico.vaga@vaga.pv.it> - 2026-09-07 09:20 +0200

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