Received: from malur.postgresql.org ([2a02:16a8:dc51::56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1fyn8w-0005jI-Fv for pgsql-bugs@arkaria.postgresql.org; Sat, 08 Sep 2018 23:59:58 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1fyn8t-0001KO-6j for pgsql-bugs@arkaria.postgresql.org; Sat, 08 Sep 2018 23:59:55 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1fyn8t-0001KH-0Z for pgsql-bugs@lists.postgresql.org; Sat, 08 Sep 2018 23:59:55 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1fyn8p-0005zi-Rm for pgsql-bugs@lists.postgresql.org; Sat, 08 Sep 2018 23:59:54 +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 w88NxjK0031649; Sat, 8 Sep 2018 19:59:46 -0400 From: Tom Lane To: Andrew Gierth cc: Jeremy Evans , Michael Paquier , pgsql-bugs@lists.postgresql.org Subject: Re: BUG #15367: Crash in pg_fe_scram_free when using foreign tables In-reply-to: <874lezskcu.fsf@news-spur.riddles.org.uk> References: <153626613985.23143.4743626885618266803@wrigleys.postgresql.org> <20180906215836.GP2726@paquier.xyz> <20180906222843.GF17425@jeremyevans.local> <20180907165103.GH17425@jeremyevans.local> <20180907175518.GI17425@jeremyevans.local> <20180907181522.GB32058@paquier.xyz> <20016.1536351535@sss.pgh.pa.us> <20180907204403.GC32058@paquier.xyz> <16558.1536407783@sss.pgh.pa.us> <18398.1536410055@sss.pgh.pa.us> <87o9d8rv08.fsf@news-spur.riddles.org.uk> <3979.1536433320@sss.pgh.pa.us> <6869.1536436921@sss.pgh.pa.us> <874lezskcu.fsf@news-spur.riddles.org.uk> Comments: In-reply-to Andrew Gierth message dated "Sat, 08 Sep 2018 23:25:25 +0100" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <31647.1536451185.1@sss.pgh.pa.us> Date: Sat, 08 Sep 2018 19:59:45 -0400 Message-ID: <31648.1536451185@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Andrew Gierth writes: > "Tom" == Tom Lane writes: > Tom> Hence we need to make sure that version-script filtering happens > Tom> on every ELF-based platform, not just the most popular ones. I see > Tom> that the FreeBSD and NetBSD stanzas in Makefile.shlib also have > Tom> "ifdef ELF_SYSTEM" portions, so probably we need to put the > Tom> version-script stuff into those too. > I tested adding your patch into the FreeBSD stanza and it worked for me, > FWIW. That was on a system which still has GNU ld, but I also tried a > test program using ld.lld and the same option and version script file > works. Hm. So I can reproduce the crash on NetBSD as well as OpenBSD, using the test method I showed before ... but *not* on FreeBSD 11.0 x86_64, even though that's certainly an ELF system. So now I'm confused again. regards, tom lane