Date: Wed, 11 Dec 2013 06:02:13 GMT From: Richard Kojedzinszky <krichy@cflinux.hu> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/184677: ZFS snapshot umount kernel panic Message-ID: <201312110602.rBB62D3v073800@oldred.freebsd.org> Resent-Message-ID: <201312110610.rBB6A0TV079361@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 184677 >Category: kern >Synopsis: ZFS snapshot umount kernel panic >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Dec 11 06:10:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Richard Kojedzinszky >Release: stable/10, releng/9.2 >Organization: >Environment: FreeBSD freebsd10 10.0-PRERELEASE FreeBSD 10.0-PRERELEASE #9 57a89d6(stable/10)-dirty: Mon Dec 9 11:11:30 CET 2013 root@freebsd10:/usr/obj/usr/src/sys/BSD amd64 >Description: Accessing ZFS snapshots and unmounting them parallell causes the system to panic. In a real server setup, where unix users exists, they are able to access .zfs/snapshot/ directories, which causes snapshots to be mounted. The system may be set up to clean those mounts, umount them at some time. Then a panic may occur. >How-To-Repeat: Run the script at http://pastebin.com/Bf15sMhd on an empty ZFS dataset with a snapshot. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201312110602.rBB62D3v073800>