Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eDIOv-0006gY-OW for pgsql-bugs@arkaria.postgresql.org; Fri, 10 Nov 2017 23:07:53 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1eDIOv-0003jZ-0Z for pgsql-bugs@arkaria.postgresql.org; Fri, 10 Nov 2017 23:07:53 +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 4.84_2) (envelope-from ) id 1eDIO9-0002Rn-Jd for pgsql-bugs@postgresql.org; Fri, 10 Nov 2017 23:07:05 +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 1eDIO2-0002v9-7X for pgsql-bugs@postgresql.org; Fri, 10 Nov 2017 23:07:04 +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 vAAN6tO6017618; Fri, 10 Nov 2017 18:06:55 -0500 From: Tom Lane To: Dmitry Dolgov <9erthalion6@gmail.com> cc: Vincent Lachenal , PostgreSQL mailing lists Subject: Re: BUG #14897: Segfault on statitics SQL request In-reply-to: References: <20171110185747.31519.28038@wrigleys.postgresql.org> <1415.1510340891@sss.pgh.pa.us> <5652.1510344738@sss.pgh.pa.us> <7710.1510346813@sss.pgh.pa.us> <10197.1510349123@sss.pgh.pa.us> <14075.1510352167@sss.pgh.pa.us> Comments: In-reply-to Dmitry Dolgov <9erthalion6@gmail.com> message dated "Fri, 10 Nov 2017 23:44:46 +0100" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <17616.1510355215.1@sss.pgh.pa.us> Date: Fri, 10 Nov 2017 18:06:55 -0500 Message-ID: <17617.1510355215@sss.pgh.pa.us> List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-bugs Precedence: bulk Sender: pgsql-bugs-owner@postgresql.org Dmitry Dolgov <9erthalion6@gmail.com> writes: > Looks like I can reproduce something close to this issue on my Gentoo > installation using the provided dataset, but it looks quite weird for me: Interesting. I wonder whether __int128 has an alignment requirement that is more than MAXALIGN. Intel chips generally don't enforce alignment requirements, but maybe there's an exception here? My Fedora box thinks __alignof__(__int128) is 16, which is suspicious, but it's not crashing. regards, tom lane -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs