Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d0qOR-0002pZ-Qj for pgsql-hackers@arkaria.postgresql.org; Wed, 19 Apr 2017 14:15:39 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1d0qOR-0005hD-2L for pgsql-hackers@arkaria.postgresql.org; Wed, 19 Apr 2017 14:15:39 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1d0qOP-0005bi-DI for pgsql-hackers@postgresql.org; Wed, 19 Apr 2017 14:15:37 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1d0qON-000571-AP for pgsql-hackers@postgresql.org; Wed, 19 Apr 2017 14:15:36 +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 v3JEFVlA006310; Wed, 19 Apr 2017 10:15:31 -0400 From: Tom Lane To: Amit Kapila cc: Andres Freund , pgsql-hackers Subject: Re: OK, so culicidae is *still* broken In-reply-to: References: <7036.1492231361@sss.pgh.pa.us> <18D5D7AF-C587-4B63-B2CF-13590849A624@anarazel.de> <32559.1492278226@sss.pgh.pa.us> <1842.1492289285@sss.pgh.pa.us> <20170415210643.cdapwhwmbiwaqd6e@alap3.anarazel.de> <2829.1492290578@sss.pgh.pa.us> <20170415211810.vsing3muvqfcswqx@alap3.anarazel.de> <3667.1492291494@sss.pgh.pa.us> <20170415213017.co7gkjlbcy44zlmw@alap3.anarazel.de> <4180.1492292046@sss.pgh.pa.us> Comments: In-reply-to Amit Kapila message dated "Wed, 19 Apr 2017 11:49:38 +0530" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <6308.1492611331.1@sss.pgh.pa.us> Date: Wed, 19 Apr 2017 10:15:31 -0400 Message-ID: <6309.1492611331@sss.pgh.pa.us> X-Pg-Spam-Score: -1.9 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-hackers Precedence: bulk Sender: pgsql-hackers-owner@postgresql.org Amit Kapila writes: > On Sun, Apr 16, 2017 at 3:04 AM, Tom Lane wrote: >> Obviously, any such fix would be a lot more likely to be reliable in >> 64-bit machines. There's probably not enough daylight to be sure of >> making it work in 32-bit Windows, so I suspect we'd need some retry >> logic anyway for that case. > Yeah, that kind of thing can work assuming we don't get conflicts too > often, but it could be possible that conflicts are not reported from > ASLR enabled environments because of commit 7f3e17b4. Right, but Andres' point is that we should make an effort to undo that hack and instead allow ASLR to happen. Not just because it's allegedly more secure, but because we may have no choice in future Windows versions. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers