Date: Sun, 10 Jun 2012 08:53:08 +0200 From: Patrick Proniewski <patpro@patpro.net> To: freebsd-fs@freebsd.org Subject: [zfs] need help with a bug (PR 156781) Message-ID: <9A54A14B-7DA4-48AD-8198-63A8572D3DB3@patpro.net>
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Hello, I'm running various FreeBSD 8 amd64 servers, and some of them use ZFS extensively. Unfortunately, I'm hit by the bug "PR 156781" (<http://www.FreeBSD.org/cgi/query-pr.cgi?pr=156781&cat=kern>). After an undetermined uptime, the affected server will lose the ability to list some of its .zfs/.snappshot: ls -l .zfs ls: snapshot: Bad file descriptor It doesn't look critical at this point, because snapshots still work (creation/deletion), but you won't be able to access them via cd .zfs/snapshot/... In fact, it is critical. If you try to unmount the affected ZFS volume, your shell will freeze, and you have to reconnect in a new one. And more importantly, the whole OS will freeze when you issue a reboot, meaning it will never reboot until someone pushes the power button of the box. It's a very nasty bug when your box is 400 km away in a data center, and you need to ask your hosting provider to push that button. I would be happy if the PR 156781 could be modified so that it says its Severity is critical, and it affects both FreeBSD 8.1-RELEASE-p5 amd64, FreeBSD 8.2-RELEASE-p3 amd64, and FreeBSD 8.2-STABLE sparc64 (ie. not just FreeBSD 8.2-STABLE sparc64). And I would be very very happy, if someone could fix this bug, it's unfortunately way out of my reach :/ FreeBSD si 8.2-RELEASE-p3 FreeBSD 8.2-RELEASE-p3 #0: Tue Sep 27 18:45:57 UTC 2011 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 $ grep ZFS /var/run/dmesg.boot ZFS filesystem version 4 ZFS storage pool version 15 $ zpool upgrade -a This system is currently running ZFS pool version 15. All pools are formatted using this version. $ zfs upgrade -a 0 filesystems upgraded 265 filesystems already at this version and FreeBSD rack.patpro.net 8.1-RELEASE-p5 FreeBSD 8.1-RELEASE-p5 #0: Tue Sep 27 16:49:00 UTC 2011 root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64 $ grep ZFS /var/run/dmesg.boot ZFS filesystem version 3 ZFS storage pool version 14 $ zpool upgrade -a This system is currently running ZFS pool version 14. All pools are formatted using this version. $ zfs upgrade -ra 0 filesystems upgraded 19 filesystems already at this version regards, patpro (I'm subscribed to the digest, fell free to Cc. me)help
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