Date: Wed, 06 Mar 2013 12:46:11 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-fs@freebsd.org Subject: ZFS deadlock (?) Message-ID: <kh7aa7$gnu$1@ger.gmane.org>
next in thread | raw e-mail | index | archive | help
[-- Attachment #1 --] Maybe it's just me, but I really still have a hard time trusting ZFS. Here's what happened today in a machine with FreeNAS 8.3: 41526 root 1 45 0 17856K 1860K tx->tx 0 0:00 0.00% /sbin/zfs create -o compression=lzjb -V 100g store/test 41641 root 1 44 0 17856K 1860K tx->tx 0 0:00 0.00% /sbin/zfs create -o compression=lzjb -V 200g store/bla 41492 root 1 45 0 17856K 1860K tx->tx 2 0:00 0.00% /sbin/zfs create -o compression=lzjb -V 100g store/test 41392 root 1 44 0 17856K 1860K tx->tx 0 0:00 0.00% /sbin/zfs create -o compression=lzjb -V 100G store/test These processes were started from the web GUI and are apparently deadlocked or not proceeding because of some other reason. I tried creating the "test" volume first (the earliest PID), and when it didn't finish in a few minutes I cancelled it from the web GUI and started again. Apparently, all of these processes are in some kind of deadlock state. No IO is happening on the machine. An attempt to do a "zpool scrub store" resulted in zpool also being (dead)locked, in a different place: [ctrl-t] load: 0.00 cmd: zpool 41724 [scl->scl_cv)] 37.22r 0.00u 0.00s 0% 1696k Now, all IO on the file system is (dead) locked and cannot proceed. There is nothing significant in /var/log/messages. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAlE3LIsACgkQ/QjVBj3/HSw0RQCeOlWSrQs/hLfEWvz733H3+zZ2 Nd8AnAlMM8FNn7n+5OLlmkzbBB+mttvo =sozH -----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?kh7aa7$gnu$1>