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From: Alexander Lakhin <exclusion@gmail.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Heikki Linnakangas <hlinnaka@iki.fi>
Subject: Re: Potential deadlock in pgaio_io_wait()
Date: Sun, 12 Oct 2025 21:00:00 +0300
Message-ID: <970b24e8-967e-4012-ad6a-ff7605ebeadd@gmail.com> (raw)
In-Reply-To: <CA+hUKG+Hh7u3YpPLKQS+B7KJu0Bw99EjhuPuvBRVccDfgod95g@mail.gmail.com>
References: <CA+hUKG+mZYrSdnhk-XrBYO18H829K77S9gMKUsykOiTJtqB43g@mail.gmail.com>
	<CA+hUKG+Pymq0tgBC7b1opt-fnNrnxg8UMVFOEsFcofPVwfiqig@mail.gmail.com>
	<CA+hUKGJhZLeNE8oDJKQC6n=9g44=54qf18sSF8zj6kfTBf-9Ow@mail.gmail.com>
	<kl7wzxh6lhtbexnkp7meobqjksnayvzvh53uzsdjsubdfkom37@kemmr6est2g6>
	<ad74d2ee-f7d7-4423-baf1-b3d2f8846bf6@iki.fi>
	<CA+hUKG+Hh7u3YpPLKQS+B7KJu0Bw99EjhuPuvBRVccDfgod95g@mail.gmail.com>

Hello Thomas,

10.10.2025 04:44, Thomas Munro wrote:
> I like the second one slightly more, but I'm also happy to be
> outvoted.  I'm working on committing the first one, but I ran into a
> couple of CI failures[1] that I haven't understood yet.  It could be
> my patch's fault or turn out to be something already in the tree...
> looking into that...
>
> [1]https://cirrus-ci.com/task/4737677834059776

I wonder whether it may be related to the issue we encountered with
OpenBSD?:
https://www.postgresql.org/message-id/flat/db2773a2-aca0-43d0-99c1-060efcd9954e%40gmail.com

(I've found the same hanging "SELECT * FROM writetest;" in my notes from
2024-12...)

Best regards,
Alexander

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