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Groups > linux.debian.user > #226772

Re: 32 versus 64 bit reading list suggestions

From Andy Smith <andy@strugglers.net>
Newsgroups linux.debian.user
Subject Re: 32 versus 64 bit reading list suggestions
Date 2020-09-08 00:10 +0200
Message-ID <AMxuN-39F-3@gated-at.bofh.it> (permalink)
References (1 earlier) <AMqjE-7bp-5@gated-at.bofh.it> <AMqjE-7bp-3@gated-at.bofh.it> <AMr62-7Ia-7@gated-at.bofh.it> <AMuwV-19H-7@gated-at.bofh.it> <AMx1L-2Kv-3@gated-at.bofh.it>
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On Mon, Sep 07, 2020 at 09:37:47PM +0000, Andy Smith wrote:
> Basically there are already fewer upstream kernel developers that
> care about and understand 32-bit x86, and bug and even security
> fixes specific to 32-bit x86 lag behind those for amd64. KPTI fixes
> to address Meltdown and Spectre took an extra 6 months to reach
> 32-bit x86.
> 
>     https://lwn.net/Articles/743265/
>     https://www.phoronix.com/scan.php?page=news_item&px=Linux-32-Bit-KPTI-Bug-Fix

Oh, and:

    https://lwn.net/ml/oss-security/CALCETrW1z0gCLFJz-1Jwj_wcT3+axXkP_wOCxY8JkbSLzV80GA@mail.gmail.com/

    "To those of you who actually support x86_32: please either
    consider stopping supporting it or finding and paying someone to
    give it serious upstream attention.  We need real CI resources
    and we need developers to test things for real, fix what's
    broken, and generally keep it up to date. And the developers in
    question should have an appropriate degree of nostalgic
    adoration of segments, gates, and other delights from the i386
    era."

Kind of suggests to me that changes specific to x86_32 aren't being
made, and when they are being made they aren't being tested except
by users in the wild. If you never upgrade your kernel and it's in a
more secure environment (e.g. device with only one user, not exposed
to public Internet, etc.) then it's obviously less of a worry, but…

Cheers,
Andy

-- 
https://bitfolk.com/ -- No-nonsense VPS hosting

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Thread

32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 15:50 +0200
  Re: 32 versus 64 bit reading list suggestions Reco <recoverym4n@enotuniq.net> - 2020-09-07 16:20 +0200
    Re: 32 versus 64 bit reading list suggestions David Wright <deblis@lionunicorn.co.uk> - 2020-09-07 16:50 +0200
    Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 17:10 +0200
      Re: 32 versus 64 bit reading list suggestions Reco <recoverym4n@enotuniq.net> - 2020-09-07 17:20 +0200
        Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 17:50 +0200
  Re: 32 versus 64 bit reading list suggestions Jonathan Dowland <jon+debian-user@dow.land> - 2020-09-07 16:30 +0200
    Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 17:20 +0200
      Re: 32 versus 64 bit reading list suggestions Andrew Cater <amacater@gmail.com> - 2020-09-07 17:30 +0200
        Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-07 20:00 +0200
          Re: 32 versus 64 bit reading list suggestions Andrew Cater <amacater@gmail.com> - 2020-09-07 20:10 +0200
            Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-07 20:30 +0200
          Re: 32 versus 64 bit reading list suggestions Charles Curley <charlescurley@charlescurley.com> - 2020-09-07 21:30 +0200
            Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-07 22:00 +0200
              Re: 32 versus 64 bit reading list suggestions Andrew Cater <amacater@gmail.com> - 2020-09-07 22:10 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 07:50 +0200
                Re: 32 versus 64 bit reading list suggestions Michael Stone <mstone@debian.org> - 2020-09-08 14:30 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 19:30 +0200
                Re: 32 versus 64 bit reading list suggestions Michael Stone <mstone@debian.org> - 2020-09-08 21:30 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 22:00 +0200
                Re: 32 versus 64 bit reading list suggestions Charles Curley <charlescurley@charlescurley.com> - 2020-09-08 17:20 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 19:40 +0200
                Re: 32 versus 64 bit reading list suggestions Richard Hector <richard@walnut.gen.nz> - 2020-09-09 07:50 +0200
                Re: 32 versus 64 bit reading list suggestions John Hasler <jhasler@newsguy.com> - 2020-09-09 14:20 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-09 14:30 +0200
                Re: 32 versus 64 bit reading list suggestions John Hasler <jhasler@newsguy.com> - 2020-09-09 14:50 +0200
                Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-09 20:50 +0200
              Re: 32 versus 64 bit reading list suggestions Kenneth Parker <sea7kenp@gmail.com> - 2020-09-08 00:00 +0200
            Re: 32 versus 64 bit reading list suggestions Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-08 10:50 +0200
              Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 19:40 +0200
                Re: 32 versus 64 bit reading list suggestions Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-09 07:40 +0200
                Re: 32 versus 64 bit reading list suggestions John Hasler <jhasler@newsguy.com> - 2020-09-09 14:20 +0200
      Re: 32 versus 64 bit reading list suggestions Joe <joe@jretrading.com> - 2020-09-07 21:00 +0200
        Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 22:20 +0200
        Re: 32 versus 64 bit reading list suggestions Andy Smith <andy@strugglers.net> - 2020-09-07 23:40 +0200
          Re: 32 versus 64 bit reading list suggestions Andy Smith <andy@strugglers.net> - 2020-09-08 00:10 +0200
            Re: 32 versus 64 bit reading list suggestions deloptes <deloptes@gmail.com> - 2020-09-08 08:10 +0200
      Re: 32 versus 64 bit reading list suggestions David Wright <deblis@lionunicorn.co.uk> - 2020-09-07 21:00 +0200
        Printed page vs. computer screen (was: Re: 32 versus 64 bit reading list suggestions) rhkramer@gmail.com - 2020-09-08 01:20 +0200
  Re: 32 versus 64 bit reading list suggestions Georgi Naplatanov <gosho@oles.biz> - 2020-09-07 16:30 +0200
  Re: 32 versus 64 bit reading list suggestions Felix Miata <mrmazda@earthlink.net> - 2020-09-07 17:00 +0200
    Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 20:00 +0200
      Re: 32 versus 64 bit reading list suggestions David Wright <deblis@lionunicorn.co.uk> - 2020-09-07 21:10 +0200
        Re: 32 versus 64 bit reading list suggestions Felix Miata <mrmazda@earthlink.net> - 2020-09-07 21:30 +0200
          Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 23:00 +0200
        Re: 32 versus 64 bit reading list suggestions Richard Owlett <rowlett@cloud85.net> - 2020-09-07 22:30 +0200

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