From owner-freebsd-questions@FreeBSD.ORG Sun May 19 15:51:44 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 27C02CF for ; Sun, 19 May 2013 15:51:44 +0000 (UTC) (envelope-from freebsd@pki2.com) Received: from btw.pki2.com (btw.pki2.com [IPv6:2001:470:a:6fd::2]) by mx1.freebsd.org (Postfix) with ESMTP id E748FE79 for ; Sun, 19 May 2013 15:51:43 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by btw.pki2.com (8.14.6/8.14.5) with ESMTP id r4JFpQV9047857; Sun, 19 May 2013 08:51:28 -0700 (PDT) (envelope-from freebsd@pki2.com) Subject: Re: More than 32 CPUs under 8.4-P From: Dennis Glatting To: Tijl Coosemans In-Reply-To: <51989FDA.5070302@coosemans.org> References: <1368897188.16472.19.camel@btw.pki2.com> <51989FDA.5070302@coosemans.org> Content-Type: text/plain; charset="ISO-8859-1" Date: Sun, 19 May 2013 08:51:26 -0700 Message-ID: <1368978686.16472.25.camel@btw.pki2.com> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-yoursite-MailScanner-Information: Dennis Glatting X-yoursite-MailScanner-ID: r4JFpQV9047857 X-yoursite-MailScanner: Found to be clean X-MailScanner-From: freebsd@pki2.com Cc: freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 May 2013 15:51:44 -0000 On Sun, 2013-05-19 at 11:48 +0200, Tijl Coosemans wrote: > On 2013-05-18 19:13, Dennis Glatting wrote: > > I have a 4x16=64 core server running FreeBSD 8.4-P but only two of the > > CPUs (2x16=32) are enabled. Enabling the other 32 isn't as simple as > > changing MAXCPU in param.h (apparently) and recompiling. > > > > What do I need to do to enable the other 32 cores? > > Try FreeBSD 9.x. MAXCPU is 64 there. > Not an option. ZFS hangs on multi-socket systems (Tyan, Supermicro) under 9.1. ZFS does not hang under 8.4. This (and one other 4 socket) is a production system.