X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 036319FA509 for ; Fri, 5 May 2006 10:31:30 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 37883-05 for ; Fri, 5 May 2006 10:31:21 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mx1.surnet.cl (mx1.surnet.cl [216.155.73.180]) by postgresql.org (Postfix) with ESMTP id 215A39FA372 for ; Fri, 5 May 2006 10:31:20 -0300 (ADT) Received: from unknown (HELO cluster.surnet.cl) ([216.155.73.165]) by mx1.surnet.cl with ESMTP; 05 May 2006 09:31:19 -0400 X-IronPort-AV: i="4.05,93,1146456000"; d="scan'208"; a="60678413:sNHT85721008" Received: from alvh.no-ip.org (201.220.122.210) by cluster.surnet.cl (7.0.043) (authenticated as alvherre@surnet.cl) id 443B7DDC0035B3C8; Fri, 5 May 2006 09:31:19 -0400 Received: by alvh.no-ip.org (Postfix, from userid 1000) id E7C42C31DD1; Fri, 5 May 2006 09:31:18 -0400 (CLT) Date: Fri, 5 May 2006 09:31:18 -0400 From: Alvaro Herrera To: Tom Lane Cc: "mcelroy, tim" , pgsql-performance@postgresql.org Subject: Re: Memory and/or cache issues? Message-ID: <20060505133118.GF8878@surnet.cl> Mail-Followup-To: Tom Lane , "mcelroy, tim" , pgsql-performance@postgresql.org References: <0C4841B42F87D51195BD00B0D020F5CB044B2608@MORPHEUS> <19907.1146835520@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <19907.1146835520@sss.pgh.pa.us> User-Agent: Mutt/1.5.11+cvs20060403 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200605/106 X-Sequence-Number: 18893 Tom Lane wrote: > "mcelroy, tim" writes: > > pg_dump: ERROR: invalid memory alloc request size 18446744073709551613 > > That looks more like a corrupt-data problem than anything directly to do > with having or not having enough memory. The bit pattern is certainly suspicious, though I'll grant that it doesn't mean anything. $ dc 2 o 18446744073709551613 p 1111111111111111111111111111111111111111111111111111111111111101 -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support