From owner-freebsd-fs@FreeBSD.ORG Thu Dec 20 02:23:36 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id EA7A7127 for ; Thu, 20 Dec 2012 02:23:36 +0000 (UTC) (envelope-from yanegomi@gmail.com) Received: from mail-oa0-f50.google.com (mail-oa0-f50.google.com [209.85.219.50]) by mx1.freebsd.org (Postfix) with ESMTP id ACABE8FC14 for ; Thu, 20 Dec 2012 02:23:36 +0000 (UTC) Received: by mail-oa0-f50.google.com with SMTP id n16so2848546oag.37 for ; Wed, 19 Dec 2012 18:23:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:cc:content-type; bh=YFy3WySDLTmeOnjiTnCu8onAgSbPIqAR5WjO4CBgic8=; b=wSdGpEBWZaC/YHSJzlX3KqHUZHtYS8ooB0zAC/UHFZPsECayAErfrdifx+eAfv/w7M c3whF5lFE58eeSpmyRLCtBYfFcHhLsD3RyJYx2CP/B3lK8j6AHXM4vuSq8gHgQCs/22V ptr+6ARCtECTwFfd9xVmC8RS8ZPs4EQ6I04pDuIGvKE+R5cGUhzM+Hq1amg5eLysqAv7 uC5j27/TT9pF0k3pdE+6htWcyWKqYW5Ef84hkrEqArxIROQDO5MpIiNksdVcN4JzZ339 aFOeMYgdWHgBO57y+84M/3vjXNY/nBG65YEFEr2HJM7P0ldwPERaE0RkSngbSPf6NM+S 64lA== MIME-Version: 1.0 Received: by 10.60.25.227 with SMTP id f3mr6796656oeg.17.1355970210130; Wed, 19 Dec 2012 18:23:30 -0800 (PST) Received: by 10.76.143.33 with HTTP; Wed, 19 Dec 2012 18:23:29 -0800 (PST) Date: Wed, 19 Dec 2012 18:23:29 -0800 Message-ID: Subject: umount -f broken again [with devfs/NFS] From: Garrett Cooper To: FreeBSD FS Content-Type: text/plain; charset=ISO-8859-1 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Dec 2012 02:23:37 -0000 Ran into this with a build of CURRENT 2 week or so old version of CURRENT (gjb's livecd) and while unmounting devfs with a week old build: # umount -f /ifs umount: unmount of /ifs failed: Device busy # uname -a FreeBSD wf158.west.isilon.com 10.0-CURRENT FreeBSD 10.0-CURRENT #3 r+5a05236: Wed Dec 12 17:35:14 PST 2012 root@wf158.west.isilon.com:/usr/obj/usr/src/sys/ISI-GENERIC amd64 My gut reaction is that some recently changes to VFS probably broke this (a couple week old 9-STABLE build just hangs on an NFS mountpoint that's gone out to lunch). Thanks, -Garrett