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Re: Drop 32-bit support (was "Re: Fix typo 586/686 in atomics/arch-x86.h")

Daniel Gustafsson <daniel@yesql.se>

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From: Daniel Gustafsson <daniel@yesql.se>
To: Jakub Wartak <jakub.wartak@enterprisedb.com>
Cc: Nathan Bossart <nathandbossart@gmail.com>, Andres Freund <andres@anarazel.de>, Tomas Vondra <tv@fuzzy.cz>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Thomas Munro <thomas.munro@gmail.com>, "Jonathan S. Katz" <jkatz@postgresql.org>
Date: 2026-03-12T13:32:49Z
Lists: pgsql-hackers 
> On 12 Mar 2026, at 08:57, Jakub Wartak <jakub.wartak@enterprisedb.com> wrote:

> ..I think that the topic of removal 32-bit support deserves better transparency,
> so I'm sending this under new subject.


My interpretation of the comments in the thread was to remove 32-bit support
for 8 byte single-copy atomicity, not 32-bit support entirely.  Maybe that was
a misunderstanding but it seems like a better place to start given that it
apparently doesn't work with no one complaining about it.

--
Daniel Gustafsson

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Remove support for 8 byte tear free read/write on 32-bit