Date: Wed, 16 Jul 2003 10:27:22 +0200 From: neologism@hysteria.sk To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/54534: unionfs && mfs|md crashing machine Message-ID: <E19chdC-00005m-00@k4-316a.kn.vutbr.cz> Resent-Message-ID: <200307160830.h6G8UHYt074838@freefall.freebsd.org>
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>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:
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