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From: Michael Paquier <michael@paquier.xyz>
To: Zsolt Parragi <zsolt.parragi@percona.com>
Cc: Andrey Borodin <x4mmm@yandex-team.ru>
Cc: Nikolay Samokhvalov <nik@postgres.ai>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: injection_points: canceled or terminated waiters leak their wait slots
Date: Sat, 3 Oct 2026 08:48:00 +0900
Message-ID: <asBCsCfFefC4lMQE@paquier.xyz> (raw)
In-Reply-To: <CAN4CZFOoiKa9E4Gnh_OzLk3S5Z6RFyg_oY1e_WddCVYhkpTVow@mail.gmail.com>
References: <088AB35D-0860-494A-A9CF-8B301543AA51@yandex-team.ru>
	<CAM527d8gNR9MW-BSC=DFm7aufx6P+_hALSVr-ML9Er0KpE9jjQ@mail.gmail.com>
	<CAN4CZFPsHwozYFFXKQof349L6AiHqoSrm+oSajKBrGdCpG-=Tg@mail.gmail.com>
	<arrw8isOSbfkK5Fd@paquier.xyz>
	<CAN4CZFM4iAESOc08pNiA87nboNP35Nj_7z7eXvfS1-g=08KZ7A@mail.gmail.com>
	<CAN4CZFMtxYXiJV+eAA7XmYx4RDU1SFnzFq1UB=aoWa+GX6hFug@mail.gmail.com>
	<arxN1TpPi75XHGRb@paquier.xyz>
	<ECB91CD2-8861-4501-B9AD-DAFE47F9F878@yandex-team.ru>
	<ar2VsK9d-UJiC7x7@paquier.xyz>
	<CAN4CZFOoiKa9E4Gnh_OzLk3S5Z6RFyg_oY1e_WddCVYhkpTVow@mail.gmail.com>

On Fri, Oct 02, 2026 at 10:44:20PM +0100, Zsolt Parragi wrote:
> I only disabled the two tests that already had failures on CI. After
> looking into it again I realized that temp-schema-cleanup could only
> fail with my hacked together linux repro, I can't reproduce it on
> windows. In wait_cleanup and slot_creation_error one session kills
> another session.

Thanks for the patch.  That should be able to do the job.  Good idea
to mention the thread, for future references.

> In temp-schema-cleanup s1 kills itself. When the
> fatal happens the isolation tester is reading s1's socket, and
> receives the message properly, I can't make that fail without
> modifying the testcase.

Okay, that's good to know.  That leads to an even simpler patch.
--
Michael

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