From owner-freebsd-hackers@freebsd.org Fri Jan 5 15:53:01 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id BABB9EB0A16; Fri, 5 Jan 2018 15:53:01 +0000 (UTC) (envelope-from eric@metricspace.net) Received: from mail.metricspace.net (mail.metricspace.net [IPv6:2001:470:1f11:617::107]) by mx1.freebsd.org (Postfix) with ESMTP id 921806F00F; Fri, 5 Jan 2018 15:53:01 +0000 (UTC) (envelope-from eric@metricspace.net) Received: from [192.168.43.57] (mobile-166-171-187-244.mycingular.net [166.171.187.244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) (Authenticated sender: eric) by mail.metricspace.net (Postfix) with ESMTPSA id 1FE5D8900; Fri, 5 Jan 2018 15:35:14 +0000 (UTC) Subject: Re: Intel hardware bug To: =?UTF-8?Q?C_Bergstr=c3=b6m?= Cc: Freebsd Security , "freebsd-arch@freebsd.org" , FreeBSD Hackers References: <736a2b77-d4a0-b03f-8a6b-6a717f5744d4@metricspace.net> <2594.1515141192@segfault.tristatelogic.com> <809675000.867372.1515146821354@mail.yahoo.com> <250f3a77-822b-fba5-dcd7-758dfec94554@metricspace.net> From: Eric McCorkle Message-ID: <755a65eb-b02e-05c5-e1a2-701cfd8bc837@metricspace.net> Date: Fri, 5 Jan 2018 10:35:13 -0500 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jan 2018 15:53:01 -0000 On 01/05/2018 09:55, C Bergström wrote: > Don't bet on it.  There's reports of AMD vulnerabilities, also for ARM. > I doubt any major architecture is going to make it out unscathed.  (But > if one does, my money's on Power) > > > Nope, the only arch that I'm aware of that gets past this is SPARC(hah!) > due to the seperate userland and kernel memory virtualization. Alas, poor Sparc. I knew them, Horatio... It looks like Red Hat is indeed reporting Power9 to be vulnerable: https://access.redhat.com/security/vulnerabilities/speculativeexecution Unfortunate. I hope they get fixed silicon out in time for the Talos II workstation.