From owner-freebsd-hackers@FreeBSD.ORG Wed Mar 11 17:08:21 2015 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id BC53AFB4 for ; Wed, 11 Mar 2015 17:08:21 +0000 (UTC) Received: from weser.webweaving.org (weser.webweaving.org [148.251.234.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.webweaving.org", Issuer "RapidSSL CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47E50C7C for ; Wed, 11 Mar 2015 17:08:21 +0000 (UTC) Received: from [10.11.0.122] (a83-163-239-115.adsl.xs4all.nl [83.163.239.115]) (authenticated bits=0) by weser.webweaving.org (8.14.9/8.14.9) with ESMTP id t2BGclBd075454 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 11 Mar 2015 17:38:48 +0100 (CET) (envelope-from dirkx@webweaving.org) X-Authentication-Warning: weser.webweaving.org: Host a83-163-239-115.adsl.xs4all.nl [83.163.239.115] claimed to be [10.11.0.122] Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2087\)) Subject: Re: Server with 3TB Crashing at boot From: Dirk-Willem van Gulik In-Reply-To: Date: Wed, 11 Mar 2015 17:38:46 +0100 Content-Transfer-Encoding: quoted-printable Message-Id: <664C3D0B-932E-4350-94BC-FFC5F7CD4A2B@webweaving.org> References: <550046F7.1050205@fuckner.net> To: Adrian Chadd X-Mailer: Apple Mail (2.2087) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (weser.webweaving.org [148.251.234.232]); Wed, 11 Mar 2015 17:38:49 +0100 (CET) Cc: "freebsd-hackers@freebsd.org" , Michael Fuckner , freebsd-hardware@freebsd.org X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Mar 2015 17:08:21 -0000 > On 11 Mar 2015, at 16:26, Adrian Chadd wrote: >=20 > Hm, have you tried with just one TB of RAM? I haven't had access to > systems with 3TB of RAM - I'm just about to get 1TB in a box. :) >=20 > Hm, other hackers - what's the current size of the AMD64 direct map? Since 10.0 - = https://svnweb.freebsd.org/base?view=3Drevision&revision=3D254466 has = made 2Tbyte work reliably for me. Dw. *: See also [amd64] The maximum amount of memory the FreeBSD kernel can = address has been increased from 1TB to 4TB in relnotes of = https://www.freebsd.org/releases/10.0R/relnotes.html=