From owner-freebsd-questions Thu Feb 13 11:30:40 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0CD9337B401 for ; Thu, 13 Feb 2003 11:30:39 -0800 (PST) Received: from smtp3.server.rpi.edu (smtp3.server.rpi.edu [128.113.2.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 30B1843FB1 for ; Thu, 13 Feb 2003 11:30:38 -0800 (PST) (envelope-from drosih@rpi.edu) Received: from [128.113.24.47] (gilead.netel.rpi.edu [128.113.24.47]) by smtp3.server.rpi.edu (8.12.7/8.12.7) with ESMTP id h1DJUaFx028379; Thu, 13 Feb 2003 14:30:36 -0500 Mime-Version: 1.0 X-Sender: drosih@mail.rpi.edu Message-Id: In-Reply-To: References: Date: Thu, 13 Feb 2003 14:30:35 -0500 To: From: Garance A Drosihn Subject: Re: 5.0-RELEASE under VMWare 3 : slowdown and even hangup Cc: Content-Type: text/plain; charset="us-ascii" ; format="flowed" X-RPI-Spam-Score: -0.8 () IN_REP_TO,REFERENCES,SIGNATURE_SHORT_DENSE,SPAM_PHRASE_02_03 X-Scanned-By: MIMEDefang 2.28 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG At 10:51 AM +0100 2/13/03, yvon.quere@laposte.net wrote: >I'm kinda in the same situation : XP Pro, WMWare 3.2, several >virtual machines running fine (linux,w2k), but the freebsd >5-RELEASE is quite a pain to use in this env. > >The guest OS keeps on slowing down, to the point that it's >unusable. > >Kris Kenna talked about a kernel option for fix this. The >problem would be related to a specific opcode emulation >done by VMWare. If you look in the file: /usr/src/sys/i386/conf/NOTES You will find an option called CPU_DISABLE_CMPXCHG You need to compile a kernel which has this option when running under VMWare. You can not use this option with the SMP option, but then you probably should not be using an SMP kernel when running under VMWare! I realize you then have the problem of how to compile the new kernel when it takes so long to do anything with the standard GENERIC kernel. Perhaps it would go better if you booted up in single-user mode, and then compiled and installed the new kernel. However, that is just a guess on my part. It would probably be easier to get someone else to compile a 5.0-release kernel with that CPU_DISABLE_CMPXCHG option. -- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message