From owner-freebsd-current@FreeBSD.ORG Sat May 24 00:50:59 2014 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 9B2DEBB2 for ; Sat, 24 May 2014 00:50:59 +0000 (UTC) Received: from nm8-vm0.bullet.mail.bf1.yahoo.com (nm8-vm0.bullet.mail.bf1.yahoo.com [98.139.213.95]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3F2C626E1 for ; Sat, 24 May 2014 00:50:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1400892257; bh=tGp42B/Nuuae1JlsQbFZsE54PWGRxmAp90860jUcJA4=; h=Received:Received:Received:X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:X-Rocket-Received:From:Content-Type:Content-Transfer-Encoding:Subject:Date:Message-Id:Cc:To:Mime-Version:X-Mailer; b=t518hzd87lObEPuSgVd5hhtmxek4A1YH8njASgA1kV+2FdqICSzgiKRFz42IoItAeYedPE+Abfnjo0bSeKHkalRuqKP7f3LbhsB5eQcuKQrLaLff9/abNHOQi2OAxWhhVPB8z++0y7fEN8xkw3TTY2J5b/cYmizpkStP4kS22L/0+PicoPJkt1qvTJRh7PmGYIrXe9KMMiOt3F1yaLw9w1AMrjS0VHDsm45ISE/hXQrhQWNaAh8SGQ0AnyM1VYoMqO1iAIJOvpvtyXNQMZCffWMenlhhj2wYJzYkrUWwb0ekstCck1NYyLhRY2mikujNKVyfP/ke9+DmR6Cdms+mnw== DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s2048; d=yahoo.com; b=BQoT2Bejxfp5Rzhe/nv43htQMRiOjKWx2WUjykNP7ow9oE+Zg1tfDlScF7To4KWqrtQRo8ExJ9XmGw2z6POh51VR8HEblMBUKpUvCZTr1XZ2Y9q621XwDEY6iTPgiwMQWSxP8gkcegG8Q5mvDVct7wp1s0vFwFkam9fmuZFXtK9yyFRp33oTrOPnZuFpSt0AIelc5NfxBLkyrjytMcjtQ6eO8hnI6SGGQ5urPcNzURvAa3JBWofe8fDsJgEfVrVZt3o1ZAFl1r3SWkzRGoU8VI/FLcSWEN3HWALaf9EXi6jtL7PVc2Sud4TH2Ny0wa+2vMMJapFmKOSySL/OKwq4AQ==; Received: from [98.139.212.149] by nm8.bullet.mail.bf1.yahoo.com with NNFMP; 24 May 2014 00:44:17 -0000 Received: from [68.142.230.78] by tm6.bullet.mail.bf1.yahoo.com with NNFMP; 24 May 2014 00:44:17 -0000 Received: from [127.0.0.1] by smtp235.mail.bf1.yahoo.com with NNFMP; 24 May 2014 00:44:17 -0000 X-Yahoo-Newman-Id: 613208.65968.bm@smtp235.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: .tJ2E6kVM1lGBHf7C8kjzT5b0fhR3YIaMDjYUHG6aHGbegs inQvDV2Vh4LHG2x5LOW2Aagcqj5Fvo96XfxkxL6N8tzNulsYkpjugtBoE5Gj IsYLDmZKsTKgWo0QNVq27_efj6ci8eBIifx5vN9lRJNdI1g.vFDfl.V78Wvn PKtNAJ4M.3KgzZBCw_dIQquR7i5GeunXhPGcj9dYRxvCC9VtiYLwpD0u26Sj 1e6ACG0eKoazEhycPYvrGlAOxHIx0OrmT255o9QluEqiQExBvd4VFOiQluNS kNjSAKzavI_rgsn9..rMv2hicG3mPElm2zBx0m62c1INxM.0m6Nk2PygFQy6 5FS3jlQ.KkPUHYNLNg8wTO_5gS4iz5GMM4CU3ot_88w9oDVHs2AcLBAmA7d_ R6QOU4ezb1KBiaYKLwA4tHUvcnN6SW9xgdnkP38u_MzUdlKDeqVCVCjlLisR x10.2srIbpYu9Qf860y5.oIKWTBq8Mr9wzg7paeG8yBeDmfXM2OydhUHtQsN i3yd.I6eLdyTUFxik5OpA2Buu.zH1HsQ- X-Yahoo-SMTP: xcjD0guswBAZaPPIbxpWwLcp9Unf X-Rocket-Received: from [192.168.0.101] (pfg@190.157.126.109 with plain [98.139.211.125]) by smtp235.mail.bf1.yahoo.com with SMTP; 24 May 2014 00:44:17 +0000 UTC From: Pedro Giffuni Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Subject: Re: [CFT] ASLR, PIE, and segvguard on 11-current and 10-stable Date: Fri, 23 May 2014 19:44:13 -0500 Message-Id: <4E5105B9-54F7-4780-B954-65BDD42EF331@freebsd.org> To: freebsd-current@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.2\)) X-Mailer: Apple Mail (2.1878.2) Cc: Shawn Webb , "Wojciech A. Koszek" , Oliver Pinter X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 May 2014 00:50:59 -0000 (Dropped the cross-posting, which *is* frowned upon) While I do very much appreciate this work being done, and I agree we = should have it in the tree, I would really prefer it opt-in rather = opt-out, at least initially. I know this may very well be the subject of a bikeshed of historical = proportions but: 1) Understand this may break some applications (?). 2) It is yet undetermined what the performance effect will be. I find it very neat that it can be enabled for jails though. Pedro.=