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 1wF45U-004iB8-20 for pgsql-hackers@arkaria.postgresql.org; Tue, 21 Apr 2026 05:55:56 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1wF45T-006Y15-1T for pgsql-hackers@arkaria.postgresql.org; Tue, 21 Apr 2026 05:55:55 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1wF45T-006Y0w-0W for pgsql-hackers@lists.postgresql.org; Tue, 21 Apr 2026 05:55:55 +0000 Received: from fhigh-b7-smtp.messagingengine.com ([202.12.124.158]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wF45R-000000022Od-0UZB for pgsql-hackers@lists.postgresql.org; Tue, 21 Apr 2026 05:55:54 +0000 Received: from phl-compute-02.internal (phl-compute-02.internal [10.202.2.42]) by mailfhigh.stl.internal (Postfix) with ESMTP id 62FE37A01C2; Tue, 21 Apr 2026 01:55:52 -0400 (EDT) Received: from phl-frontend-04 ([10.202.2.163]) by phl-compute-02.internal (MEProxy); Tue, 21 Apr 2026 01:55:52 -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=1776750952; x=1776837352; bh=9M6P+7opFP kDCGbahW6zAkRCoydhkA+TvfHguSMaSGk=; b=X4aB7c0p1op48sbTAAP7N+EA8L CWpi+U2J+fNyKKrNF8u/4s77HIU5xL6M2aUVRJcrOtuemlUaPtgQ1Z6gsSaWm0dC 50EnhA1x/qv4J0KTf0rjPzTFjHGiM2w2pR+a5UbpDgrO9RM89kbFJNNonTPPLKeU jUPeDQCi1IAkol05ADEfjCtn+lKyxMomw6IAazlgR2JRjzvWN8TNg04l+Pg4aR5h nTASEf3Yw8/1mgL2x8Mlce7KW4RJqK03Ecb4C5j8xn/BtW6WC9BbyuxN1fAWLyFK UhQKLUejb65PRjutxFnsWGCSdda1Tc6FKMT5F0NekvXBRA/2XzOO9+swG9hQ== 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= 1776750952; x=1776837352; bh=9M6P+7opFPkDCGbahW6zAkRCoydhkA+TvfH guSMaSGk=; b=pEvg5E//d6K5LvYE2rRRNqMoVP6yOGD9cnBHJe+E8ZdpUrdgdr3 DONkgr3v/amqfVbbJV80vIfQ7NIR+KHC424pqpq7nPpUHf7+/0cZpYS7Hi2AEoGa nlyiATobimGE89etb5WEHrCn3qRAHwC5+qvSgngVudDOZWlcjvmWOo1w56kleUhR ix5FkjzMmrhXkNr4eNijHncLCE2VWU92Gai5VJvvAwF8IlSSdD47+yfMRjUc6UTr Dh0luXLng/U7JwBjNgXVuvZ/t0f4kEmSwtnMdTZFJ0rsE7avWWnfQv2y/++CKBb+ X8CkU/MGIV7micJ6CKKXEZ0mMNtZVX6f1OA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefhedrtddtgdeitdeiudcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfghrlh cuvffnffculdejtddmnecujfgurhepfffhvfevuffkfhggtggujgesghdtroertddtvden ucfhrhhomhepofhitghhrggvlhcurfgrqhhuihgvrhcuoehmihgthhgrvghlsehprghquh hivghrrdighiiiqeenucggtffrrghtthgvrhhnpeffudelheeghfekfefgfedthfekuddt vdfhudekgeegheeikefflefhleekheetfeenucevlhhushhtvghrufhiiigvpedtnecurf grrhgrmhepmhgrihhlfhhrohhmpehmihgthhgrvghlsehprghquhhivghrrdighiiipdhn sggprhgtphhtthhopeefpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehmrghsrg hordhfuhhjihhisehgmhgrihhlrdgtohhmpdhrtghpthhtohepshhjhheluddtkedthees ghhmrghilhdrtghomhdprhgtphhtthhopehpghhsqhhlqdhhrggtkhgvrhhssehlihhsth hsrdhpohhsthhgrhgvshhqlhdrohhrgh X-ME-Proxy: Feedback-ID: i0fe9450f:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 21 Apr 2026 01:55:49 -0400 (EDT) Date: Tue, 21 Apr 2026 14:55:45 +0900 From: Michael Paquier To: Fujii Masao Cc: JoongHyuk Shin , "pgsql-hackers@lists.postgresql.org" Subject: Re: [PATCH] Prevent repeated deadlock-check signals in standby buffer pin waits Message-ID: References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="dbIhmUs5b8KVLG6G" Content-Disposition: inline In-Reply-To: List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --dbIhmUs5b8KVLG6G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 21, 2026 at 02:42:38PM +0900, Fujii Masao wrote: > Since this change improves recovery-conflict behavior rather than fixing = a bug, > it doesn't seem to need backpatching and we may need to wait until v20 > development opens (probably July) before committing it. Yeah, this one is an improvement, not an actual bug, so let's wait for v20 if worth doing (I did not check it).=20 -- Michael --dbIhmUs5b8KVLG6G Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEG72nH6vTowiyblFKnvQgOdbyQH0FAmnnEWEACgkQnvQgOdby QH07rA//cKGwqtIAIOa8ZaGAWu2OaVP/CkxSKWxSDOGiVW5axwWauwklr8/GJATE v/iq0TQrNo6abJBF7BwLZKvXArf4dbY1XtMQEg7ePZmJpWcs86aR3b0TVIzfsv++ XeOnjB935pmwdbNst21GEJLAGMUCcYM1Xnz+NZM4YdXJhbZqpavGXzKUPgHPfypU CKxJ33hKeI/tqP+YiZkNDtPQI//SAGp12a+5fJxhbK6ZDKn0QEMpKP3zk7JPC3cj TBtnpU5nKShPeWt+y8j6nO1Ip71ahI8KgrweX5u775PsoiIYQotQxp5al11KJ4tZ z9nQUb4p5nSxlxGvnrTmTpt6uVf+gx21Ehe5vTv3F4ndWSUN2L0cczL8A1Mrt+bW chF2dvrPCH6xJEeRgljvcktaHn+peeoYnF58l+5SAk+gN08E8CZC6Uq2Fm17+hGX O6WM18Ks6ewNh4x2VrzVaLG7wXzngIPaiJr2tBvTa7lHNCQffhyb7KEHs5QOkk9s mrdxlHgCPPRG6ez9PGbuNYaXTcebbPdyeLP+GO9ZvvUB3aEJUR9GYijNGO2cubep Hgw8d2ksvqW/2wyDUVYrU9tCjcQT2MhgxTLZ+cxguouj8aCMEQ2Q02AcCXwl4lfB MhvuEOYuJDV31UjzQ+wmD8QTnBAtvy3EyuuPkz7LpZs9XssTv7w= =zAZM -----END PGP SIGNATURE----- --dbIhmUs5b8KVLG6G--