Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iBPTF-0000NO-Ro for pgsql-hackers@arkaria.postgresql.org; Fri, 20 Sep 2019 20:25:37 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iBPTE-0006FG-CY for pgsql-hackers@arkaria.postgresql.org; Fri, 20 Sep 2019 20:25:36 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iBPTE-0006F1-0l for pgsql-hackers@lists.postgresql.org; Fri, 20 Sep 2019 20:25:36 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iBPT9-0005pT-DI for pgsql-hackers@lists.postgresql.org; Fri, 20 Sep 2019 20:25:34 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id x8KKPLHa029512; Fri, 20 Sep 2019 16:25:21 -0400 From: Tom Lane To: Andres Freund cc: Kuntal Ghosh , Michael Paquier , Tomas Vondra , Robert Haas , Thomas Munro , PostgreSQL Hackers Subject: Re: subscriptionCheck failures on nightjar In-reply-to: <20190920170831.aaljabal6lyivre5@alap3.anarazel.de> References: <20190813080435.GL2551@paquier.xyz> <20190826132904.3ayuw36qzl2c4ktr@development> <7361.1568738373@sss.pgh.pa.us> <20190917194510.iqwyl3be62pz7l27@development> <20190918005815.GB8909@paquier.xyz> <20190918215808.yonxqgycme6pbctp@development> <20190919042305.GA21144@paquier.xyz> <20190920170831.aaljabal6lyivre5@alap3.anarazel.de> Comments: In-reply-to Andres Freund message dated "Fri, 20 Sep 2019 10:08:31 -0700" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <29510.1569011121.1@sss.pgh.pa.us> Date: Fri, 20 Sep 2019 16:25:21 -0400 Message-ID: <29511.1569011121@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Andres Freund writes: > Since now a number of people (I tried as well), failed to reproduce this > locally, I propose that we increase the log-level during this test on > master. And perhaps expand the set of debugging information. With the > hope that the additional information on the cases encountered on the bf > helps us build a reproducer or, even better, diagnose the issue > directly. If people agree, I'll come up with a patch. I recreated my freebsd-9-under-qemu setup and I can still reproduce the problem, though not with high reliability (order of 1 time in 10). Anything particular you want logged? regards, tom lane