From owner-freebsd-stable@FreeBSD.ORG Tue Oct 23 17:09:48 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9E90DE73 for ; Tue, 23 Oct 2012 17:09:48 +0000 (UTC) (envelope-from peo@intersonic.se) Received: from neonpark.inter-sonic.com (neonpark.inter-sonic.com [212.247.8.98]) by mx1.freebsd.org (Postfix) with ESMTP id 4C3C08FC12 for ; Tue, 23 Oct 2012 17:09:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at BSDLabs AB Message-ID: <5086CD71.7020006@intersonic.se> Date: Tue, 23 Oct 2012 19:01:37 +0200 From: Per olof Ljungmark Organization: Intersonic AB User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:16.0) Gecko/20121015 Thunderbird/16.0.1 MIME-Version: 1.0 To: "freebsd-stable@freebsd.org" Subject: The shutdown bug? Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2012 17:09:48 -0000 As described in earlier reports, 9-STABLE sometimes cannot halt or reboot properly. FreeBSD 9.1-PRERELEASE #0 r241866: Mon Oct 22 16:28:47 CEST 2012 All ZFS file system, no NFS mounts. The problem occurs after updating sources and rebuilding world for some reason the I suspect is connected to the file system. "shutdown -r now" or "halt -p" will stop after "Syncing discs" forever. It is seen here on various HP boxes, DL360 G4, G5, XW6600 are examples. Issuing a "shutdown -n -o -r now" works however and I assume this is not too harmful with ZFS? Setting sysctl hw.usb.no_shutdown_wait=1 does NOT fix the problem as described in http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/167685 Should I file another bug or add to the existing? Would it be useful to build a debug kernel, if yes, including what? Thanks! //per