From owner-freebsd-stable@FreeBSD.ORG Tue Oct 14 17:09:24 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8EE8CF7D for ; Tue, 14 Oct 2014 17:09:24 +0000 (UTC) Received: from mail-ig0-x22d.google.com (mail-ig0-x22d.google.com [IPv6:2607:f8b0:4001:c05::22d]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 5EEF1900 for ; Tue, 14 Oct 2014 17:09:24 +0000 (UTC) Received: by mail-ig0-f173.google.com with SMTP id h18so15461617igc.0 for ; Tue, 14 Oct 2014 10:09:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:date:message-id:subject:from:to:content-type; bh=vGIZndRTCV60cOSS0oedvkPij5OjwKxM+AnLuHyiO4I=; b=tPPXMlie489FzsmBJfJCOUQIpnN1luSSeLs23oSl1osPYVf52CUbuX+SPOOEpLs4QV BiqkuCYjhnP96hUVot3xPFp+K11XJjCDsyaB1nWiKvFuC+Fi2AiphfxmuPfdqFEdxV2w YHULhNBPXiGPMvCpXFL91D/0pBUAQrFrKOnxcsOxAA5eCINqA469+5tvZRlXl9mTCFC6 hVnyuJnKSV1uJKVjG72gw6MH4Eu9cTR2JKZKzEfTKgdvF1p+PV7GbShUmAGzbxir/WIL kDKEs24CLF3fW3U/95P6uoq/pQ82BvoqiWOPgJOdxQd215NgqqUUWiaSmgKBkMANOshq rFEg== MIME-Version: 1.0 X-Received: by 10.50.128.137 with SMTP id no9mr8385980igb.0.1413306563601; Tue, 14 Oct 2014 10:09:23 -0700 (PDT) Sender: kob6558@gmail.com Received: by 10.107.11.141 with HTTP; Tue, 14 Oct 2014 10:09:23 -0700 (PDT) Date: Tue, 14 Oct 2014 10:09:23 -0700 X-Google-Sender-Auth: NG9hPRQFekVk-s83EXNIyjHNL0U Message-ID: Subject: System hang on shutdown when running freebsd-update From: Kevin Oberman To: FreeBSD-STABLE Mailing List Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 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, 14 Oct 2014 17:09:24 -0000 I thought that this was just a fluke, but it has now happened three times, so I guess it's now out of the "fluke" class. I have upgraded several times recently to each 10.1 BETA and RC. After the first install pass t install the kernel and modules, the system shutdown freezes at the very end. I see the buffers synced to the disks and get the "All buffers synced" message. Then it just hangs. The disks are not marked as clean and are fscked after a reset and boot. There is not much between the "All buffers synced" message and the call to vfs_unmountall(), so I suspect it is hanging in that call. I admit that I am pretty much lost whenever I look at the VFS code and I have not put a lot of effort going further. Just hoping that someone familiar with it might have an idea. I have tried several reboots and all run normally. The problem only seems to appear when upgrading the OS. It happened repeatedly when I tried to reboot before doing the second "install" pass of freebsd-update, but not after, so the kernel and world are not in sync. I am baffled as to what could be going on, but it means I need to be at the system (a baby server) when I upgrade, but not every time I upgrade. I know it happened on the 10.0-RELEAASE to 10.1-BETA1 and 10.1-RC1 to 10.1-RC2 upgrades. Has anyone else seen this? The system is an Asus VivoPC VM40B-2. CPU: Intel(R) Celeron(R) CPU 1007U @ 1.50GHz (1496.63-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0x306a9 Family = 0x6 Model = 0x3a Stepping =9 Features=0xbfebfbff Features2=0xdbae3bf AMD Features=0x28100800 AMD Features2=0x1 Structured Extended Features=0x281 VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance statistics real memory = 4294967296 (4096 MB) avail memory = 4014346240 (3828 MB) R. Kevin Oberman, Network Engineer, Retired E-mail: rkoberman@gmail.com