From owner-freebsd-bugs@FreeBSD.ORG Wed Jul 16 01:30:18 2003 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DACED37B405 for ; Wed, 16 Jul 2003 01:30:18 -0700 (PDT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8499D43FAF for ; Wed, 16 Jul 2003 01:30:17 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.12.9/8.12.9) with ESMTP id h6G8UHUp074839 for ; Wed, 16 Jul 2003 01:30:17 -0700 (PDT) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.9/8.12.9/Submit) id h6G8UHYt074838; Wed, 16 Jul 2003 01:30:17 -0700 (PDT) Resent-Date: Wed, 16 Jul 2003 01:30:17 -0700 (PDT) Resent-Message-Id: <200307160830.h6G8UHYt074838@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, neologism@hysteria.sk Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B248937B401 for ; Wed, 16 Jul 2003 01:27:31 -0700 (PDT) Received: from paja.kn.vutbr.cz (paja.kn.vutbr.cz [147.229.191.135]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5231A43FA3 for ; Wed, 16 Jul 2003 01:27:30 -0700 (PDT) (envelope-from root@kn.vutbr.cz) Received: from k4-316a.kn.vutbr.cz (k4-316a.kn.vutbr.cz [147.229.220.176]) by paja.kn.vutbr.cz (8.11.6p2/8.11.6) with ESMTP id h6G8RRP15476 for ; Wed, 16 Jul 2003 10:27:28 +0200 (CEST) (envelope-from root@kn.vutbr.cz) Received: from root by k4-316a.kn.vutbr.cz with local (Exim 3.36 #1 (Debian)) id 19chdC-00005m-00 for ; Wed, 16 Jul 2003 10:27:22 +0200 Message-Id: Date: Wed, 16 Jul 2003 10:27:22 +0200 From: neologism@hysteria.sk To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: kern/54534: unionfs && mfs|md crashing machine X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: neologism@hysteria.sk List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Jul 2003 08:30:19 -0000 >Number: 54534 >Category: kern >Synopsis: unionfs && mfs|md crashing machine >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Jul 16 01:30:16 PDT 2003 >Closed-Date: >Last-Modified: >Originator: neologism >Release: FreeBSD 4.8-STABLE i386 >Organization: home user >Environment: System: FreeBSD k4-316a 4.8-STABLE FreeBSD 4.8-STABLE #0: Tue Jul 15 15:45:23 CEST 2003 root@k4-316a:/usr/obj/usr/src/sys/VALIA i386 >Description: When I try to use unionfs && mfs|md together it crashes the machine. >How-To-Repeat: I did this: kldload union && kldload md && kldload mfs disklabel -r -w md0 auto newfs /dev/md0c mount -t mfs -s 1000 /tmp/a mount /cdrom mount -t union /tmp/a /cdrom mount -t union /tmp/a /proc # this mount -t union /tmp/a /dist # and this might not be necessary -I don't know vi /cdrom/anyfile umount /dist umount /proc umount /cdrom umount /tmp/a # this doesn't work umount /dev/md0c # this after while crashes machine It seems like a unionfs bug.. I haven't investigated it but I'd say unionfs messes some vfs stuff so it crashes... >Fix: I don't know. >Release-Note: >Audit-Trail: >Unformatted: