Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w9xwl-001vrz-3D for pgsql-hackers@arkaria.postgresql.org; Tue, 07 Apr 2026 04:21:52 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1w9xwk-00EL5y-1W for pgsql-hackers@arkaria.postgresql.org; Tue, 07 Apr 2026 04:21:50 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1w9xwj-00EL5q-1U for pgsql-hackers@lists.postgresql.org; Tue, 07 Apr 2026 04:21:50 +0000 Received: from fout-a8-smtp.messagingengine.com ([103.168.172.151]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w9xwg-000000011nI-36qx for pgsql-hackers@lists.postgresql.org; Tue, 07 Apr 2026 04:21:49 +0000 Received: from phl-compute-07.internal (phl-compute-07.internal [10.202.2.47]) by mailfout.phl.internal (Postfix) with ESMTP id CDBC7EC00E5; Tue, 7 Apr 2026 00:21:44 -0400 (EDT) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-07.internal (MEProxy); Tue, 07 Apr 2026 00:21:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paquier.xyz; h= cc:cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:subject :subject:to:to; s=fm2; t=1775535704; x=1775622104; bh=6Yfq1iBvw+ OyyKQI6n9s9FmWcnoaFbgP6dX1RFahM5A=; b=FCGA/nG2wwr5Q3QU7zOWF0AImv bXaDKX8X4TKoZdeDr4Meh+zfJg5DIl0wzOTcqQv8SuzYMhV9sggJlbc9T3yoz4DG 1I/U2ubL45W7etHul5zsvAdQam++1tqYq8eaFyxXO5ynWZK9hVX4/fnD0XX7pogd rnPf5EnUEtZwE2Ig4Q2kXnR+5A5gcGYjvXnlBUGUl6vYGCpd5i0YNcoIwBYuSG9j oIgGJtVQOZILbK03sUUttKQ2F+4NdsV4PW+o7VzBFbuWJVQK1hmIMSQrQEcneQb7 ci/PDNHarxufjjQU9fm9q3VNBUrdRfMt2ZAzzVVGxguFrbP6geyIdzLQJ4Eg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t= 1775535704; x=1775622104; bh=6Yfq1iBvw+OyyKQI6n9s9FmWcnoaFbgP6dX 1RFahM5A=; b=nvWXGNcVnFyqWpJnKQMYf7tHciS5AB07IwHarCN+42UaVd3FHmp ymkZCSwETB/G6WhzU0GTRR36rlJ5AMjhZJszCJF71w1a5B7Owsr4qU/Y7VyBX0Pu ry7I0Z8i7txhxKOyS0C4v+Ynu3eyke64LVxD/smoNw4SwM1PSKi3KFR4zzEuuyDA K+rDY196XoIzsi3ZTLtX7b2sgmEQo5mjYr7wAzrI138iLmbdIh++NgLv7AibSd4B a8RghlQ9fvA90lioR1s/HytazI9KHJuazOhNsBebQa8uzjI5HCsWbWxG9ksXsNL5 LE73NtKLkeZnqi+3u3fbzk0y/MZxol3FmOA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefhedrtddtgdduleeijecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfghrlh cuvffnffculdejtddmnecujfgurhepfffhvfevuffkfhggtggujgesghdtreertddtvden ucfhrhhomhepofhitghhrggvlhcurfgrqhhuihgvrhcuoehmihgthhgrvghlsehprghquh hivghrrdighiiiqeenucggtffrrghtthgvrhhnpeetleeifedufffhhfdtteelgeeggeff hfekueevteeigfduudevudetgfegiedvjeenucevlhhushhtvghrufhiiigvpedtnecurf grrhgrmhepmhgrihhlfhhrohhmpehmihgthhgrvghlsehprghquhhivghrrdighiiipdhn sggprhgtphhtthhopeehpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopegrnhgurh gvshesrghnrghrrgiivghlrdguvgdprhgtphhtthhopegsvghrthhrrghnuggurhhouhhv ohhtrdhpghesghhmrghilhdrtghomhdprhgtphhtthhopehpghhsqhhlsehjqdgurghvih hsrdgtohhmpdhrtghpthhtohephhhtrghmfhhiughssehgmhgrihhlrdgtohhmpdhrtghp thhtohepphhgshhqlhdqhhgrtghkvghrsheslhhishhtshdrphhoshhtghhrvghsqhhlrd horhhg X-ME-Proxy: Feedback-ID: i0fe9450f:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 7 Apr 2026 00:21:43 -0400 (EDT) Date: Tue, 7 Apr 2026 13:21:39 +0900 From: Michael Paquier To: Andres Freund Cc: Bertrand Drouvot , Jeff Davis , Greg Sabino Mullane , pgsql-hackers@lists.postgresql.org Subject: Re: Adding locks statistics Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="CCwLoUC9AZoK2wW0" Content-Disposition: inline In-Reply-To: List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --CCwLoUC9AZoK2wW0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 06, 2026 at 03:34:44PM +0900, Michael Paquier wrote: > This one was a simple puzzle: there was a race condition between the > detach done by a local point and the wait/detach sequence. As we want > a detach, dropping the local point is proving to work here. >=20 > I am going to do a few more runs to gain some more confidence. Done a total of 5 runs (or 6 actually), and fixed it. > Bertrand, could you confirm please? That's of course always welcome. I'll keep an eye on the CI and the buildfarm. -- Michael --CCwLoUC9AZoK2wW0 Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEG72nH6vTowiyblFKnvQgOdbyQH0FAmnUhlMACgkQnvQgOdby QH1xWg//agyOtgSC4ac6HULo4jh/cwO7c+7nA1X1lKMry/TRIF8K6+V93qDzgYrT P8rweGFWbVeEFQt2KXWn6Rs23aUxHVj3HllxfvRwvJPfrV+WXXfQm0X3bVklrr/e fUBIQzYPQ1GNQGokhVrhBYu3JuU7AND1uLv3OL6E5APTIEThqEh2bensiE7MBip9 8iQu1xcdIk6+UfMBbQLcwQNkLL1252Ol4EXgr7BrFoZ5oT+xQxstTUAc0WDMl7tJ 1Wdmq14zGdUAUy5o+Uj7QYLe8kkygj+gCou/DBWD/1DpgUFgr2xQFGHVJGdCwKiM UeDz5reg5UU+PhwcO1cQSyCxjU2ADrqvwxs7tXrV1KYCL/mvxYDebg3A9EohAm2y d/7ORJXM+o7aJK8ke2lKGgTMhqleCVXUEO+PlmWgWsvpKsK4KU6QCZQNGm8UPmQp 1CnMiH0Pg5wXl8Kua/3zgy0ko8bw8nRXU/eIr6YlGI6WjE+/6iyJTaB8u1sXBwWa dJs52259EXCRThMBT1KFbzKrhYcCBSjOj6yDlmeY6ff2/7BoFvNseC9qWaQZU2C/ LOk/gsxirdVpn0RVhoXqzFGtmiRZmQbtzy7REa6v1kPdDCw1knFyrQ/cCQFC1yiK 751L0HmaYT1XVIaXXCV8TCZoYHngpJZqkAbqKvXIwGwX5/Rt1Uk= =bPSY -----END PGP SIGNATURE----- --CCwLoUC9AZoK2wW0--