Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l480C-0001zm-Nt for pgsql-hackers@arkaria.postgresql.org; Mon, 25 Jan 2021 19:58:20 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1l480B-0006Ah-Iv for pgsql-hackers@arkaria.postgresql.org; Mon, 25 Jan 2021 19:58:19 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l480B-0006AZ-Bx for pgsql-hackers@lists.postgresql.org; Mon, 25 Jan 2021 19:58:19 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l4809-00066G-CU for pgsql-hackers@lists.postgresql.org; Mon, 25 Jan 2021 19:58:18 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 10PJwGFw1900568; Mon, 25 Jan 2021 14:58:16 -0500 From: Tom Lane To: Jacob Champion cc: "pgsql-hackers@lists.postgresql.org" , "sfrost@snowman.net" Subject: Re: Fixing cache pollution in the Kerberos test suite In-reply-to: <4fd1ab76f968ca6953032a6a8a8a43c0847c9cbb.camel@vmware.com> References: <1fcb175bafef6560f47a8c31229fa7c938486b8d.camel@vmware.com> <20210125183645.GF27507@tamriel.snowman.net> <1894698.1611600541@sss.pgh.pa.us> <0c0cbc9b9a7a1bcd6e78e5eddf706ddeba0293da.camel@vmware.com> <1895343.1611601474@sss.pgh.pa.us> <1897402.1611603381@sss.pgh.pa.us> <4fd1ab76f968ca6953032a6a8a8a43c0847c9cbb.camel@vmware.com> Comments: In-reply-to Jacob Champion message dated "Mon, 25 Jan 2021 19:50:47 +0000" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1900566.1611604696.1@sss.pgh.pa.us> Date: Mon, 25 Jan 2021 14:58:16 -0500 Message-ID: <1900567.1611604696@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Jacob Champion writes: > On Mon, 2021-01-25 at 14:36 -0500, Tom Lane wrote: >> Also, it looks like the test causes /tmp/krb5cc_ to get >> created or updated despite this setting. > Huh. I wonder, if you run `klist -A` after running the tests, do you > get anything more interesting? "klist -A" prints nothing. > I am seeing a few bugs on Red Hat's > Bugzilla that center around strange KCM behavior [1]. But we're now > well outside my area of competence. Mine too. But I verified that the /tmp file is no longer modified with the adjusted script, so one way or the other this is better. regards, tom lane