From owner-freebsd-stable@FreeBSD.ORG Sun Aug 31 11:35:21 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A5AB81065673 for ; Sun, 31 Aug 2008 11:35:20 +0000 (UTC) (envelope-from morganw@chemikals.org) Received: from warped.bluecherry.net (unknown [IPv6:2001:440:eeee:fffb::2]) by mx1.freebsd.org (Postfix) with ESMTP id 7669C8FC0A for ; Sun, 31 Aug 2008 11:35:20 +0000 (UTC) (envelope-from morganw@chemikals.org) Received: from volatile.chemikals.org (unknown [74.193.170.223]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by warped.bluecherry.net (Postfix) with ESMTPSA id 5B7608F02513; Sun, 31 Aug 2008 06:35:19 -0500 (CDT) Received: from localhost (morganw@localhost [127.0.0.1]) by volatile.chemikals.org (8.14.2/8.14.2) with ESMTP id m7VBZG8j048890; Sun, 31 Aug 2008 06:35:17 -0500 (CDT) (envelope-from morganw@chemikals.org) Date: Sun, 31 Aug 2008 06:35:16 -0500 (CDT) From: Wes Morgan To: jb@what-creek.com Message-ID: User-Agent: Alpine 1.10 (BSF 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Cc: stable@freebsd.org Subject: Unresponsive after dtrace 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, 31 Aug 2008 11:35:21 -0000 I know this has been reported already, but I want to give a "me too". After installing a new world and kernel from the tree yesterday afternoon, I let my system run all night. This morning everything was extremely sluggish and unresponsive. According to top, which I thankfully left running, processes were going in and out of "*kmem_" (obviously truncated). CPU usage was 80+% system and load averages were around 5.4. The only changes I made to my system besides upgrading were to include the options KDB, DDB and STACK in my kernel for zfs functionality. Unfortunately, I cannot try without those options since my root is zfs. Booting a kernel from 8/20 works fine.