Date: Tue, 09 Apr 2013 08:38:51 -0400 From: Quartz <quartz@sneakertech.com> To: Tom Evans <tevans.uk@googlemail.com> Cc: FreeBSD FS <freebsd-fs@freebsd.org> Subject: Re: ZFS: Failed pool causes system to hang Message-ID: <51640BDB.1020403@sneakertech.com> In-Reply-To: <CAFHbX1LO9OvbqyYYaob-7nQSA_dwQkMK7%2Bvn9c4QrXQuKvTCFA@mail.gmail.com> References: <2092374421.4491514.1365459764269.JavaMail.root@k-state.edu> <5163F03B.9060700@sneakertech.com> <CAFHbX1LO9OvbqyYYaob-7nQSA_dwQkMK7%2Bvn9c4QrXQuKvTCFA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> I think what Lawrence is trying to explain is that a "hang" is not > necessarily a deadlock. Leaving the system for an extended period may > bring it back. In other cases perhaps, but at least according to my experience and what Jeremy Chadwick has said, it won't in this instance. However either way.... >What you are saying is also valid, that a hang that > long is equivalent to a deadlock in your usage. .. yes. Hard-resetting a machine is bad, but having a machine offline for the better part of a day just isn't workable. > I've not seen a dmesg http://sneakertech.com/-/dmesg.txt >does losing the pool still > cause problems with root? Yes. At the moment, there's a single ufs disk that houses all the system/home/var/swap/etc stuff (no raid or dual boot or anything special). The zfs pool is a collection of six other disks in a raidz2 configuration. If three of those disks go out to lunch (ie; the pool is no longer solvent) most io across the board hangs, including io that should be confined to the boot drive. I've had hangs when trying to cd to my home folder. ______________________________________ it has a certain smooth-brained appeal
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?51640BDB.1020403>