From owner-freebsd-stable@FreeBSD.ORG Sun Sep 18 04:44:27 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2ACD116A420 for ; Sun, 18 Sep 2005 04:44:26 +0000 (GMT) (envelope-from ringworm01@gmail.com) Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.195]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6E52D43D46 for ; Sun, 18 Sep 2005 04:44:26 +0000 (GMT) (envelope-from ringworm01@gmail.com) Received: by zproxy.gmail.com with SMTP id 40so328228nzk for ; Sat, 17 Sep 2005 21:44:26 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:from:to:subject:date:user-agent:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=ktIUpeuxt+/vXG60+lJba8d0TNnXC2LegZnzkqb+5zSXccmo4aSyXoAnskjm8fDXQ7GharcWRfniYzzrRqlVx/1IIc6N8jv7gBl+O+2jwbXKK1PiDR1S+pukPLbWauYKKP+w+Rwd77OqJNiRzu6jTA9MKCipAsXL+DwWb9ABUP8= Received: by 10.54.10.67 with SMTP id 67mr428597wrj; Sat, 17 Sep 2005 21:44:26 -0700 (PDT) Received: from ?192.168.1.10? ( [71.102.1.25]) by mx.gmail.com with ESMTP id 27sm1447434wrl.2005.09.17.21.44.25; Sat, 17 Sep 2005 21:44:25 -0700 (PDT) From: "Michael C. Shultz" To: freebsd-stable@freebsd.org Date: Sat, 17 Sep 2005 21:23:51 -0700 User-Agent: KMail/1.8.2 References: <432CE656.7010804@samsco.org> In-Reply-To: <432CE656.7010804@samsco.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200509172123.52555.ringworm01@gmail.com> Subject: Re: HEADS UP! Debugging, SMP changed in RELENG_6 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Sep 2005 04:44:27 -0000 On Saturday 17 September 2005 21:00, Scott Long wrote: > All, > > I've turned off kernel deubgging (INVARIANTS, WITNESS, KDB) and malloc > debugging (the default is now 'aj) in the RELENG_6 branch in preparation > for 6.0-BETA5. I've also turned off SMP in the i386 and amd64 GENERIC > kernels and have added and SMP kernel config for those architectures. > All of these changes are nearly identical to what is in RELENG_5. All > of this was done to facilitate performance measurement of the upcoming > release and to recognize that our buglist is shrinking considerably and > thus the release will be coming soon. > > ### IMPORTANT ### > > If you are using a stock GENERIC kernel on amd64 or i386 and expect > multiple CPUs to be enabled, you must either switch to the SMP kernel > config, or add the 'options SMP' line back to the GENERIC config. > Multiple CPUs, including mutli-core and Hyperthreading, will only be > enabled when this option is included. Hyperthreading also requires > that you add the line 'machdep.hyperthreading_allowed=1' to > /boot/loader.conf. > > Given the growth of multicore offerings from AMD and Intel, the default > on SMP may change in future releases as SMP systems become ubiquitous. > Appropriate warning will be given on the mailing lists if this happens. > > Scott I've just spent the past few days trying to get 6.0 to work with my SATA drives with little results. Here is a DMESG when I booit with 5.4: ad0: 6149MB [13328/15/63] at ata0-master UDMA33 acd0: CDRW at ata1-master UDMA33 ad4: 76319MB [155061/16/63] at ata2-master SATA150 ad6: 114473MB [232581/16/63] at ata3-master SATA150 The drives work fine in 5.4, but with 6.0 ad4 errors out, you can see it with atacontrol but it can't be reinitialized and there is only /dev/ad4 but none of the slices. ad6 works ok during reads but anything more than very light writing and the system reboots. Given these drives work with 5.4 it seems a little more work needs to go into 6.0 before doing new releases I would hope. -Mike